There are a couple of things to be aware of:
src/main/resources/public
will be served from the root of your application.
For example src/main/resources/public/hello.jpg
would be served from http://localhost:8080/hello.jpg
This is why your current matcher configuration hasn't permitted access to the static resources. For /resources/**
to work, you would have to place the resources in src/main/resources/public/resources
and access them at http://localhost:8080/resources/your-resource
.
As you're using Spring Boot, you may want to consider using its defaults rather than adding extra configuration. Spring Boot will, by default, permit access to /css/**
, /js/**
, /images/**
, and /**/favicon.ico
. You could, for example, have a file named src/main/resources/public/images/hello.jpg
and, without adding any extra configuration, it would be accessible at http://localhost:8080/images/hello.jpg
without having to log in. You can see this in action in the web method security smoke test where access is permitted to the Bootstrap CSS file without any special configuration.
Using windows authentication:
String url ="jdbc:sqlserver://PC01\inst01;databaseName=DB01;integratedSecurity=true";
Using SQL authentication:
String url ="jdbc:sqlserver://PC01\inst01;databaseName=DB01";
Look on my solution. I suppose that you should set selected position in holder and pass it as Tag of View. The view should be set in the onCreateViewHolder(...) method. There is also correct place to set listener for view such as OnClickListener or LongClickListener.
Please look on the example below and read comments to code.
public class MyListAdapter extends RecyclerView.Adapter<MyListAdapter.ViewHolder> {
//Here is current selection position
private int mSelectedPosition = 0;
private OnMyListItemClick mOnMainMenuClickListener = OnMyListItemClick.NULL;
...
// constructor, method which allow to set list yourObjectList
@Override
public ViewHolder onCreateViewHolder(ViewGroup parent, int viewType) {
//here you prepare your view
// inflate it
// set listener for it
final ViewHolder result = new ViewHolder(view);
final View view = LayoutInflater.from(parent.getContext()).inflate(R.layout.your_view_layout, parent, false);
view.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View view) {
//here you set your current position from holder of clicked view
mSelectedPosition = result.getAdapterPosition();
//here you pass object from your list - item value which you clicked
mOnMainMenuClickListener.onMyListItemClick(yourObjectList.get(mSelectedPosition));
//here you inform view that something was change - view will be invalidated
notifyDataSetChanged();
}
});
return result;
}
@Override
public void onBindViewHolder(ViewHolder holder, int position) {
final YourObject yourObject = yourObjectList.get(position);
holder.bind(yourObject);
if(mSelectedPosition == position)
holder.itemView.setBackgroundColor(Color.CYAN);
else
holder.itemView.setBackgroundColor(Color.RED);
}
// you can create your own listener which you set for adapter
public void setOnMainMenuClickListener(OnMyListItemClick onMyListItemClick) {
mOnMainMenuClickListener = onMyListItemClick == null ? OnMyListItemClick.NULL : onMyListItemClick;
}
static class ViewHolder extends RecyclerView.ViewHolder {
ViewHolder(View view) {
super(view);
}
private void bind(YourObject object){
//bind view with yourObject
}
}
public interface OnMyListItemClick {
OnMyListItemClick NULL = new OnMyListItemClick() {
@Override
public void onMyListItemClick(YourObject item) {
}
};
void onMyListItemClick(YourObject item);
}
}
The Java JNI requires OS libraries of the same "bittiness" as the JVM. If you attempt to build something that depends, for example, on IESHIMS.DLL (lives in %ProgramFiles%\Internet Explorer) you need to take the 32bit version when your JVM is 32bit, the 64bit version when your JVM is 64bit. Likewise for other platforms.
Apart from that, you should be all set. The generated Java bytecode s/b the same.
Note that you should use 64bit Java compiler for larger projects because it can address more memory.
If <!DOCTYPE>
is missing in your HTML content you may experience that the browser gives preference to the "user agent stylesheet" over your custom stylesheet. Adding the doctype fixes this.
JPA is JSR i.e. Java Specification Requirement to implement Object Relational Mapping which has got no specific code for its implementation. It defines certain set of rules for for accessing, persisting and managing the data between Java objects and the relational databaseWith its introduction, EJB was replaced as It was criticized for being heavyweight by the Java developer community. Hibernate is one of the way JPA can be implemented using te guidelines.Hibernate is a high-performance Object/Relational persistence and query service which is licensed under the open source GNU Lesser General Public License (LGPL) .The benefit of this is that you can swap out Hibernate's implementation of JPA for another implementation of the JPA specification. When you use straight Hibernate you are locking into the implementation because other ORMs may use different methods/configurations and annotations, therefore you cannot just switch over to another ORM.
Node.js supports circular dependencies.
Making use of circular dependencies instead of require('./routes')(app) cleans up a lot of code and makes each module less interdependent on its loading file:
var app = module.exports = express(); //now app.js can be required to bring app into any file
//some app/middleware setup, etc, including
app.use(app.router);
require('./routes'); //module.exports must be defined before this line
var app = require('../app');
app.get('/', function(req, res, next) {
res.render('index');
});
//require in some other route files...each of which requires app independently
require('./user');
require('./blog');
Example from their new generator:
Writing the route:
https://github.com/expressjs/generator/blob/master/templates/js/routes/index.js
Adding/namespacing it to the app:
https://github.com/expressjs/generator/blob/master/templates/js/app.js#L24
There are still usecases for accessing app from other resources, so circular dependencies are still a valid solution.
Class names should be nouns in UpperCamelCase, with the first letter of every word capitalised. Use whole words — avoid acronyms and abbreviations (unless the abbreviation is much more widely used than the long form, such as URL or HTML). The naming conventions can be read over here:
http://www.oracle.com/technetwork/java/codeconventions-135099.html
You can write different sheets as follows
$objPHPExcel = new PHPExcel();
$objPHPExcel->getProperties()->setCreator("creater");
$objPHPExcel->getProperties()->setLastModifiedBy("Middle field");
$objPHPExcel->getProperties()->setSubject("Subject");
$objWorkSheet = $objPHPExcel->createSheet();
$work_sheet_count=3;//number of sheets you want to create
$work_sheet=0;
while($work_sheet<=$work_sheet_count){
if($work_sheet==0){
$objWorkSheet->setTitle("Worksheet$work_sheet");
$objPHPExcel->setActiveSheetIndex($work_sheet)->setCellValue('A1', 'SR No. In sheet 1')->getStyle('A1')->getFont()->setBold(true);
$objPHPExcel->setActiveSheetIndex($work_sheet)->setCellValueByColumnAndRow($col++, $row++, $i++);//setting value by column and row indexes if needed
}
if($work_sheet==1){
$objWorkSheet->setTitle("Worksheet$work_sheet");
$objPHPExcel->setActiveSheetIndex($work_sheet)->setCellValue('A1', 'SR No. In sheet 2')->getStyle('A1')->getFont()->setBold(true);
$objPHPExcel->setActiveSheetIndex($work_sheet)->setCellValueByColumnAndRow($col++, $row++, $i++);//setting value by column and row indexes if needed
}
if($work_sheet==2){
$objWorkSheet = $objPHPExcel->createSheet($work_sheet_count);
$objWorkSheet->setTitle("Worksheet$work_sheet");
$objPHPExcel->setActiveSheetIndex($work_sheet)->setCellValue('A1', 'SR No. In sheet 3')->getStyle('A1')->getFont()->setBold(true);
$objPHPExcel->setActiveSheetIndex($work_sheet)->setCellValueByColumnAndRow($col++, $row++, $i++);//setting value by column and row indexes if needed
}
$work_sheet++;
}
$filename='file-name'.'.xls'; //save our workbook as this file name
header('Content-Type: application/vnd.ms-excel'); //mime type
header('Content-Disposition: attachment;filename="'.$filename.'"'); //tell browser what's the file name
header('Cache-Control: max-age=0'); //no cach
$objWriter = PHPExcel_IOFactory::createWriter($objPHPExcel, 'Excel5');
$objWriter->save('php://output');
First of all, create a virtual environment.
In Python 3.6
virtualenv --python=/usr/bin/python3.6 <path/to/new/virtualenv/>
In Python 2.7
virtualenv --python=/usr/bin/python2.7 <path/to/new/virtualenv/>
Then activate the environment and install all the packages available in the requirement.txt file.
source <path/to/new/virtualenv>/bin/activate
pip install -r <path/to/requirement.txt>
I fixed it by doing
sudo chown root:staff -R /usr/local/share/zsh
in my case other directories inside share/ also have "staff" group assigned
Suppose you have COMPANY and EMPLOYEE. COMPANY has many EMPLOYEES (i.e. EMPLOYEE has a field COMPANY_ID).
In some O/R configurations, when you have a mapped Company object and go to access its Employee objects, the O/R tool will do one select for every employee, wheras if you were just doing things in straight SQL, you could select * from employees where company_id = XX
. Thus N (# of employees) plus 1 (company)
This is how the initial versions of EJB Entity Beans worked. I believe things like Hibernate have done away with this, but I'm not too sure. Most tools usually include info as to their strategy for mapping.
print("\n".join(sys.path))
(The outer parentheses are included for Python 3 compatibility and are usually omitted in Python 2.)
Here's the NoCache
attribute proposed by mattytommo, simplified by using the information from Chris Moschini's answer:
[AttributeUsage(AttributeTargets.Class | AttributeTargets.Method)]
public sealed class NoCacheAttribute : OutputCacheAttribute
{
public NoCacheAttribute()
{
this.Duration = 0;
}
}
Actually, even if your variable (SongLength) is numeric, you will still have to format it with %s in order to bind the parameter correctly. If you try to use %d, you will get an error. Here's a small excerpt from this link http://mysql-python.sourceforge.net/MySQLdb.html:
To perform a query, you first need a cursor, and then you can execute queries on it:
c=db.cursor()
max_price=5
c.execute("""SELECT spam, eggs, sausage FROM breakfast
WHERE price < %s""", (max_price,))
In this example, max_price=5 Why, then, use %s in the string? Because MySQLdb will convert it to a SQL literal value, which is the string '5'. When it's finished, the query will actually say, "...WHERE price < 5".
i used following instructions, its so easy to increase virtual box disk size
http://blog.bhupen.me/1/post/2011/09/increase-virtualbox-disk-size.html
BinaryReader b = new BinaryReader(file.InputStream);
byte[] binData = b.ReadBytes(file.InputStream.Length);
line 2 should be replaced with
byte[] binData = b.ReadBytes(file.ContentLength);
The simplest is using the OpenCV Mat class:
img=cv::Scalar(blue_value, green_value, red_value);
where img
was defined as a cv::Mat
.
for me it works using "ng serve --open --host 0.0.0.0" but there is a warning
WARNING: This is a simple server for use in testing or debugging Angular applications locally. It hasn't been reviewed for security issues.
Binding this server to an open connection can result in compromising your application or computer. Using a different host than the one passed to the "--host" flag might result in websocket connection issues. You might need to use "--disableHostCheck" if that's the case.
I'm using rc.4 and this method works for ES2015(ES6):
import {DomSanitizationService} from '@angular/platform-browser';
@Component({
templateUrl: 'build/pages/veeu/veeu.html'
})
export class VeeUPage {
static get parameters() {
return [NavController, App, MenuController, DomSanitizationService];
}
constructor(nav, app, menu, sanitizer) {
this.app = app;
this.nav = nav;
this.menu = menu;
this.sanitizer = sanitizer;
}
photoURL() {
return this.sanitizer.bypassSecurityTrustUrl(this.mediaItems[1].url);
}
}
In the HTML:
<iframe [src]='photoURL()' width="640" height="360" frameborder="0"
webkitallowfullscreen mozallowfullscreen allowfullscreen>
</iframe>
Using a function will ensure that the value doesn't change after you sanitize it. Also be aware that the sanitization function you use depends on the context.
For images, bypassSecurityTrustUrl
will work but for other uses you need to refer to the documentation:
https://angular.io/docs/ts/latest/api/platform-browser/index/DomSanitizer-class.html
You can use filter() to do that:
var tableRow = $("td").filter(function() {
return $(this).text() == "foo";
}).closest("tr");
Use this method to convert from NSString
to NSdate
:
-(NSDate *)getDateFromString:(NSString *)pstrDate
{
NSDateFormatter* myFormatter = [[NSDateFormatter alloc] init];
[myFormatter setDateFormat:@"dd/MM/yyyy"];
NSDate* myDate = [myFormatter dateFromString:pstrDate];
return myDate;
}
Make sure you have the prerequisite, a JVM (http://wiki.eclipse.org/Eclipse/Installation#Install_a_JVM) installed.
This will be a JRE and JDK package.
There are a number of sources which includes: http://www.oracle.com/technetwork/java/javase/downloads/index.html.
Easier steps:
ArrayList<Customer> custArr = new ArrayList<Customer>();
while(youWantToContinue) {
//get a customerName
//get an amount
custArr.add(new Customer(customerName, amount);
}
For this to work... you'll have to fix your constructor...
Assuming your Customer
class has variables called name
and sale
, your constructor should look like this:
public Customer(String customerName, double amount) {
name = customerName;
sale = amount;
}
Change your Store
class to something more like this:
public class Store {
private ArrayList<Customer> custArr;
public new Store() {
custArr = new ArrayList<Customer>();
}
public void addSale(String customerName, double amount) {
custArr.add(new Customer(customerName, amount));
}
public Customer getSaleAtIndex(int index) {
return custArr.get(index);
}
//or if you want the entire ArrayList:
public ArrayList getCustArr() {
return custArr;
}
}
def get_rounded_datetime(self, dt, freq, nearest_type='inf'):
if freq.lower() == '1h':
round_to = 3600
elif freq.lower() == '3h':
round_to = 3 * 3600
elif freq.lower() == '6h':
round_to = 6 * 3600
else:
raise NotImplementedError("Freq %s is not handled yet" % freq)
# // is a floor division, not a comment on following line:
seconds_from_midnight = dt.hour * 3600 + dt.minute * 60 + dt.second
if nearest_type == 'inf':
rounded_sec = int(seconds_from_midnight / round_to) * round_to
elif nearest_type == 'sup':
rounded_sec = (int(seconds_from_midnight / round_to) + 1) * round_to
else:
raise IllegalArgumentException("nearest_type should be 'inf' or 'sup'")
dt_midnight = datetime.datetime(dt.year, dt.month, dt.day)
return dt_midnight + datetime.timedelta(0, rounded_sec)
Really simple:
remove-item -path <type in file or directory name>, press Enter
I have had to use a multiple IIF statement to create a similar result in ACCESS SQL.
IIf([refi type] Like "FHA ST*","F",IIf([refi type]="VA IRRL","V"))
All remaining will stay Null.
The easiest way to read from a file and write to a file:
//Read from a file
string something = File.ReadAllText("C:\\Rfile.txt");
//Write to a file
using (StreamWriter writer = new StreamWriter("Wfile.txt"))
{
writer.WriteLine(something);
}
I faced the same issue, though I had local.properties file in my main module, and ANDROID_HOME environment variable set at system level.
What fixed this problem was when I copied the local.properties file which was in my main project module to the root of the whole project (i.e the directory parent to your main module)
Try copying the local.properties file inside modules and the root directory. Should work.
You can use HttpEntity to read both Body and Headers.
@RequestMapping(value = "/restURL")
public String serveRest(HttpEntity<String> httpEntity){
MultiValueMap<String, String> headers =
httpEntity.getHeaders();
Iterator<Map.Entry<String, List<String>>> s =
headers.entrySet().iterator();
while(s.hasNext()) {
Map.Entry<String, List<String>> obj = s.next();
String key = obj.getKey();
List<String> value = obj.getValue();
}
String body = httpEntity.getBody();
}
You can use any
:
print any(df.column == 07311954)
True #true if it contains the number, false otherwise
If you rather want to see how many times '07311954' occurs in a column you can use:
df.column[df.column == 07311954].count()
you can find multiple options listed at http://httpd.apache.org/docs/current/platform/windows.html#down
ApacheHaus Apache Lounge BitNami WAMP Stack WampServer XAMPP
What is a reference in C++? Some specific instance of type that is not an object type.
What is a pointer in C++? Some specific instance of type that is an object type.
From the ISO C++ definition of object type:
An object type is a (possibly cv-qualified) type that is not a function type, not a reference type, and not cv void.
It may be important to know, object type is a top-level category of the type universe in C++. Reference is also a top-level category. But pointer is not.
Pointers and references are mentioned together in the context of compound type. This is basically due to the nature of the declarator syntax inherited from (and extended) C, which has no references. (Besides, there are more than one kind of declarator of references since C++ 11, while pointers are still "unityped": &
+&&
vs. *
.) So drafting a language specific by "extension" with similar style of C in this context is somewhat reasonable. (I will still argue that the syntax of declarators wastes the syntactic expressiveness a lot, makes both human users and implementations frustrating. Thus, all of them are not qualified to be built-in in a new language design. This is a totally different topic about PL design, though.)
Otherwise, it is insignificant that pointers can be qualified as a specific sorts of types with references together. They simply share too few common properties besides the syntax similarity, so there is no need to put them together in most cases.
Note the statements above only mentions "pointers" and "references" as types. There are some interested questions about their instances (like variables). There also come too many misconceptions.
The differences of the top-level categories can already reveal many concrete differences not tied to pointers directly:
cv
qualifiers. References cannot.A few more special rules on references:
&&
parameters (as the "forwarding references") based on reference collapsing during template parameter deduction allow "perfect forwarding" of parameters.std::initializer_list
follows some similar rules of reference lifetime extension. It is another can of worms.I know references are syntactic sugar, so code is easier to read and write.
Technically, this is plain wrong. References are not syntactic sugar of any other features in C++, because they cannot be exactly replaced by other features without any semantic differences.
(Similarly, lambda-expressions are not syntactic sugar of any other features in C++ because it cannot be precisely simulated with "unspecified" properties like the declaration order of the captured variables, which may be important because the initialization order of such variables can be significant.)
C++ only has a few kinds of syntactic sugars in this strict sense. One instance is (inherited from C) the built-in (non-overloaded) operator []
, which is defined exactly having same semantic properties of specific forms of combination over built-in operator unary *
and binary +
.
So, a pointer and a reference both use the same amount of memory.
The statement above is simply wrong. To avoid such misconceptions, look at the ISO C++ rules instead:
From [intro.object]/1:
... An object occupies a region of storage in its period of construction, throughout its lifetime, and in its period of destruction. ...
From [dcl.ref]/4:
It is unspecified whether or not a reference requires storage.
Note these are semantic properties.
Even that pointers are not qualified enough to be put together with references in the sense of the language design, there are still some arguments making it debatable to make choice between them in some other contexts, for example, when making choices on parameter types.
But this is not the whole story. I mean, there are more things than pointers vs references you have to consider.
If you don't have to stick on such over-specific choices, in most cases the answer is short: you do not have the necessity to use pointers, so you don't. Pointers are usually bad enough because they imply too many things you don't expect and they will rely on too many implicit assumptions undermining the maintainability and (even) portability of the code. Unnecessarily relying on pointers is definitely a bad style and it should be avoided in the sense of modern C++. Reconsider your purpose and you will finally find that pointer is the feature of last sorts in most cases.
&
reference type as the 1st parameter type. (And usually it should be const
qualified.)&&
reference type as the 1st parameter type. (And usually there should be no qualifiers.)operator=
as special member functions requires reference types similar to 1st parameter of copy/move constructors.++
requires dummy int
.unique_ptr
and shared_ptr
(or even with homebrew ones by yourself if you require them to be opaque), rather than raw pointers.std::optional
, rather than raw pointers.observer_ptr
in Library Fundamental TS.The only exceptions cannot be worked around in the current language:
operator new
. (However, cv-void*
is still quite different and safer compared to the ordinary object pointers because it rules out unexpected pointer arithmetics unless you are relying on some non conforming extension on void*
like GNU's.)So, in practice, the answer is so obvious: when in doubt, avoid pointers. You have to use pointers only when there are very explicit reasons that nothing else is more appropriate. Except a few exceptional cases mentioned above, such choices are almost always not purely C++-specific (but likely to be language-implementation-specific). Such instances can be:
If you come to see the question via some Google search result (not specific to C++), this is very likely to be the wrong place.
References in C++ is quite "odd", as it is essentially not first-class: they will be treated as the objects or the functions being referred to so they have no chance to support some first-class operations like being the left operand of the member access operator independently to the type of the referred object. Other languages may or may not have similar restrictions on their references.
References in C++ will likely not preserve the meaning across different languages. For example, references in general do not imply nonnull properties on values like they in C++, so such assumptions may not work in some other languages (and you will find counterexamples quite easily, e.g. Java, C#, ...).
There can still be some common properties among references in different programming languages in general, but let's leave it for some other questions in SO.
(A side note: the question may be significant earlier than any "C-like" languages are involved, like ALGOL 68 vs. PL/I.)
Simple and easy in javascipt
<script>
document.getElementById("selectsearch").addEventListener("change", function(){
var get_form = document.getElementById("search-form") // get form
get_form.action = '/search/' + this.value; // assign value
});
</script>
You can Just save the response(pdf,doc etc..) by option on the right side of the response in postman check this image
For more Details check this
https://learning.getpostman.com/docs/postman/sending_api_requests/responses/
$linksArray = array_filter($linksArray);
"If no callback is supplied, all entries of input equal to FALSE will be removed." -- http://php.net/manual/en/function.array-filter.php
This is also working at my end...
<div style="width: 100px; height: 100px; float: left; position: relative;">
<div
style="width: 100%; height: 40px; position: absolute; top: 50%; left: 0; margin-top: -20px; line-height:19px; text-align: center; z-index: 999999999999999">
99%<Br />
Total
</div>
<canvas id="chart-area" width="100" height="100" />
</div>
Easier to convert nm to characters and then make the change:
junk$nm <- as.character(junk$nm)
junk$nm[junk$nm == "B"] <- "b"
EDIT: And if indeed you need to maintain nm as factors, add this in the end:
junk$nm <- as.factor(junk$nm)
I have installed jupyter with command pip3 install jupyter
and have the same problem. when instead I used the command pip3 install jupyter ipython
the problem was fixed.
You may also need to make database containing table active
use [dbname]
otherwise you may get error (even if you specify database i.e. dbname.table )
FAILED Execution Error, return code 1 from org.apache.hadoop.hive.ql.exec.DDLTask. Unable to alter partition. Unable to alter partitions because table or database does not exist.
This is old question but I don't think the accepted answer is safe. It's good for creating a super user but not good if you want to grant privileges on a single database.
grant all privileges on mydb.* to myuser@'%' identified by 'mypasswd';
grant all privileges on mydb.* to myuser@localhost identified by 'mypasswd';
%
seems to not cover socket communications, that the localhost
is for. WITH GRANT OPTION
is only good for the super user, otherwise it is usually a security risk.
Update for MySQL 5.7+ seems like this warns about:
Using GRANT statement to modify existing user's properties other than privileges is deprecated and will be removed in future release. Use ALTER USER statement for this operation.
So setting password should be with separate commands. Thanks to comment from @scary-wombat.
ALTER USER 'myuser'@'%' IDENTIFIED BY 'mypassword';
ALTER USER 'myuser'@'localhost' IDENTIFIED BY 'mypassword';
Hope this helps.
pickle
and other serialization packages work. So does writing it to a .py
file that you can then import.
>>> score = [1,2,3,4,5]
>>>
>>> with open('file.py', 'w') as f:
... f.write('score = %s' % score)
...
>>> from file import score as my_list
>>> print(my_list)
[1, 2, 3, 4, 5]
As an aside, it is always a good practice (and possibly a solution for this type of issue) to delete a large number of rows by using batches:
WHILE EXISTS (SELECT 1
FROM YourTable
WHERE <yourCondition>)
DELETE TOP(10000) FROM YourTable
WHERE <yourCondition>
If you are only looking to replace all occurrences of "< "
(with space) with "<"
(no space), then you can do an lapply
over the data frame, with a gsub
for replacement:
> data <- data.frame(lapply(data, function(x) {
+ gsub("< ", "<", x)
+ }))
> data
name var1 var2
1 a <2 <3
2 a <2 <3
3 a <2 <3
4 b <2 <3
5 b <2 <3
6 b <2 <3
7 c <2 <3
8 c <2 <3
9 c <2 <3
Here is one quick suggestion for creating variable names. If you want the variable not to conflict when being used in FireFox, do not use the variable name "_content" as this variable name is already being used by the browser. I found this out the hard way and had to change all of the places I used the variable "_content" in a large JavaScript application.
Sorting a SortedDictionary
list to bind into a ListView
control using VB.NET:
Dim MyDictionary As SortedDictionary(Of String, MyDictionaryEntry)
MyDictionaryListView.ItemsSource = MyDictionary.Values.OrderByDescending(Function(entry) entry.MyValue)
Public Class MyDictionaryEntry ' Need Property for GridViewColumn DisplayMemberBinding
Public Property MyString As String
Public Property MyValue As Integer
End Class
XAML:
<ListView Name="MyDictionaryListView">
<ListView.View>
<GridView>
<GridViewColumn DisplayMemberBinding="{Binding Path=MyString}" Header="MyStringColumnName"></GridViewColumn>
<GridViewColumn DisplayMemberBinding="{Binding Path=MyValue}" Header="MyValueColumnName"></GridViewColumn>
</GridView>
</ListView.View>
</ListView>
Is there some way I can tell grep to print every line being read regardless of whether there's a match?
Option -C999
will do the trick in the absence of an option to display all context lines. Most other grep variants support this too. However: 1) no output is produced when no match is found and 2) this option has a negative impact on grep's efficiency: when the -C
value is large this many lines may have to be temporarily stored in memory for grep to determine which lines of context to display when a match occurs. Note that grep implementations do not load input files but rather reads a few lines or use a sliding window over the input. The "before part" of the context has to be kept in a window (memory) to output the "before" context lines later when a match is found.
A pattern such as ^|PATTERN
or PATTERN|$
or any empty-matching sub-pattern for that matter such as [^ -~]?|PATTERN
is a nice trick. However, 1) these patterns don't show non-matching lines highlighted as context and 2) this can't be used in combination with some other grep options, such as -F
and -w
for example.
So none of these approaches are satisfying to me. I'm using ugrep, and enhanced grep with option -y
to efficiently display all non-matching output as color-highlighted context lines. Other grep-like tools such as ag and ripgrep also offer a pass-through option. But ugrep is compatible with GNU/BSD grep and offers a superset of grep options like -y
and -Q
. For example, here is what option -y
shows when combined with -Q
(interactive query UI to enter patterns):
ugrep -Q -y FILE ...
This works:
Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click
Me.Hide()
Form2.Show()
I had this problem in an ASP.NET application, specifically a Web Forms.
I was forcing a redirect in Global.asax, but I forgot to check if the request was for resources like css, javascript, etc. I just had to add the following checks:
VB.NET
If Not Response.IsRequestBeingRedirected _
And Not Request.Url.AbsoluteUri.Contains(".WebResource") _
And Not Request.Url.AbsoluteUri.Contains(".css") _
And Not Request.Url.AbsoluteUri.Contains(".js") _
And Not Request.Url.AbsoluteUri.Contains("images/") _
And Not Request.Url.AbsoluteUri.Contains("favicon") Then
Response.Redirect("~/change-password.aspx")
End If
I was forcing logged users which hadn't change their passwords for a long time, to be redirected to the change-password.aspx page. I believe there is a better way to check this, but for now, this worked. Should I find a better solution, I edit my answer.
As of TypeScript 1.6, properties in object literals that do not have a corresponding property in the type they're being assigned to are flagged as errors.
Usually this error means you have a bug (typically a typo) in your code, or in the definition file. The right fix in this case would be to fix the typo. In the question, the property callbackOnLoactionHash
is incorrect and should have been callbackOnLocationHash
(note the mis-spelling of "Location").
This change also required some updates in definition files, so you should get the latest version of the .d.ts for any libraries you're using.
Example:
interface TextOptions {
alignment?: string;
color?: string;
padding?: number;
}
function drawText(opts: TextOptions) { ... }
drawText({ align: 'center' }); // Error, no property 'align' in 'TextOptions'
There are a few cases where you may have intended to have extra properties in your object. Depending on what you're doing, there are several appropriate fixes
Sometimes you want to make sure a few things are present and of the correct type, but intend to have extra properties for whatever reason. Type assertions (<T>v
or v as T
) do not check for extra properties, so you can use them in place of a type annotation:
interface Options {
x?: string;
y?: number;
}
// Error, no property 'z' in 'Options'
let q1: Options = { x: 'foo', y: 32, z: 100 };
// OK
let q2 = { x: 'foo', y: 32, z: 100 } as Options;
// Still an error (good):
let q3 = { x: 100, y: 32, z: 100 } as Options;
Some APIs take an object and dynamically iterate over its keys, but have 'special' keys that need to be of a certain type. Adding a string indexer to the type will disable extra property checking
Before
interface Model {
name: string;
}
function createModel(x: Model) { ... }
// Error
createModel({name: 'hello', length: 100});
After
interface Model {
name: string;
[others: string]: any;
}
function createModel(x: Model) { ... }
// OK
createModel({name: 'hello', length: 100});
interface Animal { move; }
interface Dog extends Animal { woof; }
interface Cat extends Animal { meow; }
interface Horse extends Animal { neigh; }
let x: Animal;
if(...) {
x = { move: 'doggy paddle', woof: 'bark' };
} else if(...) {
x = { move: 'catwalk', meow: 'mrar' };
} else {
x = { move: 'gallop', neigh: 'wilbur' };
}
Two good solutions come to mind here
Specify a closed set for x
// Removes all errors
let x: Dog|Cat|Horse;
or Type assert each thing
// For each initialization
x = { move: 'doggy paddle', woof: 'bark' } as Dog;
A clean solution to the "data model" problem using intersection types:
interface DataModelOptions {
name?: string;
id?: number;
}
interface UserProperties {
[key: string]: any;
}
function createDataModel(model: DataModelOptions & UserProperties) {
/* ... */
}
// findDataModel can only look up by name or id
function findDataModel(model: DataModelOptions) {
/* ... */
}
// OK
createDataModel({name: 'my model', favoriteAnimal: 'cat' });
// Error, 'ID' is not correct (should be 'id')
findDataModel({ ID: 32 });
See also https://github.com/Microsoft/TypeScript/issues/3755
The arrow is a border.
You need to change for each arrow the color depending on the 'data-placement' of the tooltip.
.tooltip.top .tooltip-arrow {
border-top-color: @color;
}
.tooltip.top-left .tooltip-arrow {
border-top-color: @color;
}
.tooltip.top-right .tooltip-arrow {
border-top-color:@color;
}
.tooltip.right .tooltip-arrow {
border-right-color: @color;
}
.tooltip.left .tooltip-arrow {
border-left-color: @color;
}
.tooltip.bottom .tooltip-arrow {
border-bottom-color: @color;
}
.tooltip.bottom-left .tooltip-arrow {
border-bottom-color: @color;
}
.tooltip.bottom-right .tooltip-arrow {
border-bottom-color: @color;
}
.tooltip > .tooltip-inner {
background-color: @color;
}
I have had the same problem, but none of the answers quite gave a step by step of what I needed to do. This error happens because your socket file has not been created yet. All you have to do is:
/tmp/mysql.sock
is created, to do that you run: mysql server start
config/database.yml
file and add/edit the socket: /tmp/mysql.sock
entryrake:dbmigrate
once again and everything should workout fineThere is one important thing to mention:
$("#txt_name").val();
will return the current real value of a text field, for example if the user typed something there after a page load.
But:
$("#txt_name").attr('value')
will return value from DOM/HTML.
Using annotations, you can do something like this:
import org.junit.*;
import static org.junit.Assert.*;
import java.util.*;
class SomethingUnitTest {
@BeforeClass
public static void runBeforeClass()
{
}
@AfterClass
public static void runAfterClass()
{
}
@Before
public void setUp()
{
}
@After
public void tearDown()
{
}
@Test
public void testSomethingOrOther()
{
}
}
You could convert the dataframe to be a single column with stack
(this changes the shape from 5x3 to 15x1) and then take the standard deviation:
df.stack().std() # pandas default degrees of freedom is one
Alternatively, you can use values
to convert from a pandas dataframe to a numpy array before taking the standard deviation:
df.values.std(ddof=1) # numpy default degrees of freedom is zero
Unlike pandas, numpy will give the standard deviation of the entire array by default, so there is no need to reshape before taking the standard deviation.
A couple of additional notes:
The numpy approach here is a bit faster than the pandas one, which is generally true when you have the option to accomplish the same thing with either numpy or pandas. The speed difference will depend on the size of your data, but numpy was roughly 10x faster when I tested a few different sized dataframes on my laptop (numpy version 1.15.4 and pandas version 0.23.4).
The numpy and pandas approaches here will not give exactly the same answers, but will be extremely close (identical at several digits of precision). The discrepancy is due to slight differences in implementation behind the scenes that affect how the floating point values get rounded.
You can also call cancelAll
on the notification manager, so you don't even have to worry about the notification ids.
NotificationManager notifManager= (NotificationManager) context.getSystemService(Context.NOTIFICATION_SERVICE);
notifManager.cancelAll();
EDIT : I was downvoted so maybe I should specify that this will only remove the notification from your application.
I'm using this code and working very fine.
def baseUrl = '\"http://patelwala.com/myapi/"'
def googleServerKey = '\"87171841097-opu71rk2ps35ibv96ud57g3ktto6ioio.apps.googleusercontent.com"'
android {
buildTypes {
release {
minifyEnabled true
proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro'
buildConfigField 'String', 'BASE_URL', baseUrl
buildConfigField 'String', 'web_client_id', googleServerKey
}
releasedebug {
initWith debug
buildConfigField 'String', 'BASE_URL', baseUrl
buildConfigField 'String', 'web_client_id' ,googleServerKey
}
debug {
buildConfigField 'String', 'BASE_URL', baseUrl
buildConfigField 'String', 'web_client_id', googleServerKey
}
}
}
}
ILookup Interface is used in .net 3.5 with linq.
The HashTable is the base class that is weakly type; the DictionaryBase abstract class is stronly typed and uses internally a HashTable.
I found a a strange thing about Dictionary, when we add the multiple entries in Dictionary, the order in which the entries are added is maintained. Thus if I apply a foreach on the Dictionary, I will get the records in the same order I have inserted them.
Whereas, this is not true with normal HashTable, as when I add same records in Hashtable the order is not maintained. As far as my knowledge goes, Dictionary is based on Hashtable, if this is true, why my Dictionary maintains the order but HashTable does not?
As to why they behave differently, it's because Generic Dictionary implements a hashtable, but is not based on System.Collections.Hashtable. The Generic Dictionary implementation is based on allocating key-value-pairs from a list. These are then indexed with the hashtable buckets for random access, but when it returns an enumerator, it just walks the list in sequential order - which will be the order of insertion as long as entries are not re-used.
shiv govind Birlasoft.:)
Yes include the first file into the second. That's all.
See an example below,
File1.php :
<?php
function first($int, $string){ //function parameters, two variables.
return $string; //returns the second argument passed into the function
}
?>
Now Using include
(http://php.net/include) to include the File1.php
to make its content available for use in the second file:
File2.php :
<?php
include 'File1.php';
echo first(1,"omg lol"); //returns omg lol;
?>
The first big question when diving in to this is "how do you want to store changesets"?
My personal approach would be to store diffs. Because the display of these diffs is really a special action, I would put the diffs in a different "history" collection.
I would use the different collection to save memory space. You generally don't want a full history for a simple query. So by keeping the history out of the object you can also keep it out of the commonly accessed memory when that data is queried.
To make my life easy, I would make a history document contain a dictionary of time-stamped diffs. Something like this:
{
_id : "id of address book record",
changes : {
1234567 : { "city" : "Omaha", "state" : "Nebraska" },
1234568 : { "city" : "Kansas City", "state" : "Missouri" }
}
}
To make my life really easy, I would make this part of my DataObjects (EntityWrapper, whatever) that I use to access my data. Generally these objects have some form of history, so that you can easily override the save()
method to make this change at the same time.
UPDATE: 2015-10
It looks like there is now a spec for handling JSON diffs. This seems like a more robust way to store the diffs / changes.
In short you have to do like this
repositories {
maven { url "http://maven.springframework.org/release" }
maven { url "https://maven.fabric.io/public" }
}
Detail:
You need to specify each maven URL in its own curly braces. Here is what I got working with skeleton dependencies for the web services project I’m going to build up:
apply plugin: 'java'
sourceCompatibility = 1.7
version = '1.0'
repositories {
maven { url "http://maven.springframework.org/release" }
maven { url "http://maven.restlet.org" }
mavenCentral()
}
dependencies {
compile group:'org.restlet.jee', name:'org.restlet', version:'2.1.1'
compile group:'org.restlet.jee', name:'org.restlet.ext.servlet',version.1.1'
compile group:'org.springframework', name:'spring-web', version:'3.2.1.RELEASE'
compile group:'org.slf4j', name:'slf4j-api', version:'1.7.2'
compile group:'ch.qos.logback', name:'logback-core', version:'1.0.9'
testCompile group:'junit', name:'junit', version:'4.11'
}
This work on all browser to get pasted value. And also to creating common method for all text box.
$("#textareaid").bind("paste", function(e){
var pastedData = e.target.value;
alert(pastedData);
} )
Actually if you create func:
create function p1() returns INTEGER DETERMINISTIC NO SQL return @p1;
and view:
create view h_parm as
select * from sw_hardware_big where unit_id = p1() ;
Then you can call a view with a parameter:
select s.* from (select @p1:=12 p) parm , h_parm s;
I hope it helps.
If you have Microsoft Office Professional Plus 2013, you can use Microsoft Spreadsheet Compare to run a report on the differences between two workbooks.
Launch Spreadsheet Compare:
In Windows 7: On the Windows Start menu, under Office 2013 Tools, click Spreadsheet Compare.
In Windows 8: On the Start screen, click Spreadsheet Compare. If you do not see a Spreadsheet Compare tile, begin typing the words Spreadsheet Compare, and then select its tile.
Compare two Excel workbooks:
Reference:
"FirstLine" + "<br/>" "SecondLine"
There are several ways to iterate a map. Please refer to the following code.
When you iterate a map using iterator Interface you must go with Entry<K,V>
or entrySet()
.
It looks like this:
import java.util.*;
import java.util.HashMap;
import java.util.Iterator;
import java.util.Map;
public class IteratMapDemo{
public static void main(String arg[]){
Map<String, String> mapOne = new HashMap<String, String>();
mapOne.put("1", "January");
mapOne.put("2", "February");
mapOne.put("3", "March");
mapOne.put("4", "April");
mapOne.put("5", "May");
mapOne.put("6", "June");
mapOne.put("7", "July");
mapOne.put("8", "August");
mapOne.put("9", "September");
mapOne.put("10", "Octomber");
mapOne.put("11", "November");
mapOne.put("12", "December");
Iterator it = mapOne.entrySet().iterator();
while(it.hasNext())
{
Map.Entry me = (Map.Entry) it.next();
//System.out.println("Get Key through While loop = " + me.getKey());
}
for(Map.Entry<String, String> entry:mapOne.entrySet()){
//System.out.println(entry.getKey() + "=" + entry.getValue());
}
for (Object key : mapOne.keySet()) {
System.out.println("Key: " + key.toString() + " Value: " +
mapOne.get(key));
}
}
}
For plaintext email using JavaScript, you may also use \r
with encodeURIComponent()
.
For example, this message:
hello\rthis answer is now well formated\rand it contains good knowleadge\rthat is why I am up voting
URI Encoded, results in:
hello%0Dthis%20answer%20is%20now%20well%20formated%0Dand%20it%20contains%20good%20knowleadge%0Dthat%20is%20why%20I%20am%20up%20voting
And, using the href:
mailto:[email protected]?body=hello%0Dthis%20answer%20is%20now%20well%20formated%0Dand%20it%20contains%20good%20knowleadge%0Dthat%20is%20why%20I%20am%20up%20voting
Will result in the following email body text:
hello
this answer is now well formated
and it contains good knowleadge
that is why I am up voting
Sample Html code
<div id="temp">
F1 <input type="text" value="111"/><br/>
F2 <input type="text" value="222"/><br/>
F3 <input type="text" value="333"/><br/>
Type <select>
<option value="A">A</option>
<option value="B">B</option>
<option value="C">C</option>
</select>
<input type="button" value="Go" onclick="getVal()">
</div>
Javascript
function getVal()
{
var test = document.getElementById("temp").getElementsByTagName("input");
alert("Number of Input Elements "+test.length);
for(var i=0;i<test.length;i++)
{
if(test[i].type=="text")
{
alert(test[i].value);
}
}
test = document.getElementById("temp").getElementsByTagName("select");
alert("Select box "+test[0].options[test[0].selectedIndex].text);
}
By providing different tag names we can get all the values from the div.
$("#from").datepicker('disable');
should work, but you can also try this:
$( "#from" ).datepicker( "option", "disabled", true );
Windows 10:
Android Studio -> File -> Other Settings -> Default Project Structure... -> JDK location:
copy string shown, such as:
C:\Program Files\Android\Android Studio\jre
In file locator directory window, right-click on "This PC" ->
Properties -> Advanced System Settings -> Environment Variables... -> System Variables
click on the New... button under System Variables, then type and paste respectively:
.......Variable name: JAVA_HOME
.......Variable value: C:\Program Files\Android\Android Studio\jre
and hit OK buttons to close out.
Some installations may require JRE_HOME to be set as well, the same way.
To check, open a NEW black console window, then type echo %JAVA_HOME%
. You should get back the full path you typed into the system variable. Windows 10 seems to support spaces in the filename paths for system variables very well, and does not seem to need ~tilde eliding.
Here's my work around for this I hope it helps :
<TouchableOpacity
onPress={() => {
this.onSubmit()
}}
disabled={this.state.validity}
style={this.state.validity ?
SignUpStyleSheet.inputStyle :
[SignUpStyleSheet.inputAndButton, {opacity: 0.5}]}>
<Text style={SignUpStyleSheet.buttonsText}>Sign-Up</Text>
</TouchableOpacity>
in SignUpStyleSheet.inputStyle
holds the style for the button when it disabled or not, then in style={this.state.validity ? SignUpStyleSheet.inputStyle : [SignUpStyleSheet.inputAndButton, {opacity: 0.5}]}
I add the opacity property if the button is disabled.
The answers are commonly found in Java books.
cloning: If you don't override clone method, the default behavior is shallow copy. If your objects have only primitive member variables, it's totally ok. But in a typeless language with another object as member variables, it's a headache.
serialization/deserialization
$new_object = unserialize(serialize($your_object))
This achieves deep copy with a heavy cost depending on the complexity of the object.
The value of 0xDEADBEEF has three practical benefits, mostly for older systems. Old assembler/C hacks, like me, would use it to fill unallocated memory to coax out memory issues. Also, it's a pun of the slang term "dead meat". The programmer is dead meat if DEADBEEF winds up in his pointers. I congratulate the guy who first thought of using the value DEADBEEF. It's clever in many ways.
As for practical reasons, firstly, it's more noticeable in a hex memory dump because it actually spells words as opposed to random hex values.
Secondly, if the value winds up in a pointer, it's more likely to induce a memory out-of-range fault. An address of DEADBEEF was out of the address range of systems (we're talking last century systems now) regardless of the system's endian.
Thirdly, it is more likely to induce a fault on systems that require even boundary pointer values for accessing 16/32/64-bit data. The value is more likely to fault because both of the 16 bit values (DEAD, BEEF) are odd.
For that you need to add change listener (a DocumentListener
which reacts for change in the text) for your JTextField
, and within actionPerformed()
, you need to update the loginButton
to enabled/disabled depending on the whether the JTextfield
is empty or not.
Below is what I found from this thread.
yourJTextField.getDocument().addDocumentListener(new DocumentListener() {
public void changedUpdate(DocumentEvent e) {
changed();
}
public void removeUpdate(DocumentEvent e) {
changed();
}
public void insertUpdate(DocumentEvent e) {
changed();
}
public void changed() {
if (yourJTextField.getText().equals("")){
loginButton.setEnabled(false);
}
else {
loginButton.setEnabled(true);
}
}
});
Calling the no-arguments super constructor is just a waste of screen space and programmer time. The compiler generates exactly the same code, whether you write it or not.
class Explicit() {
Explicit() {
super();
}
}
class Implicit {
Implicit() {
}
}
Your syntax is fine, it will return rows where LastAdDate
lies within the last 6 months;
select cast('01-jan-1970' as datetime) as LastAdDate into #PubAdvTransData
union select GETDATE()
union select NULL
union select '01-feb-2010'
DECLARE @sp_Date DATETIME = DateAdd(m, -6, GETDATE())
SELECT * FROM #PubAdvTransData pat
WHERE (pat.LastAdDate > @sp_Date)
>2010-02-01 00:00:00.000
>2010-04-29 21:12:29.920
Are you sure LastAdDate
is of type DATETIME
?
This answer is specific to a java.lang.NoClassDefFoundError happening in a service:
My team recently saw this error after upgrading an rpm that supplied a service. The rpm and the software inside of it had been built with Maven, so it seemed that we had a compile time dependency that had just not gotten included in the rpm.
However, when investigating, the class that was not found was in the same module as several of the classes in the stack trace. Furthermore, this was not a module that had only been recently added to the build. These facts indicated it might not be a Maven dependency issue.
The eventual solution: Restart the service!
It appears that the rpm upgrade invalidated the service's file handle on the underlying jar file. The service then saw a class that had not been loaded into memory, searched for it among its list of jar file handles, and failed to find it because the file handle that it could load the class from had been invalidated. Restarting the service forced it to reload all of its file handles, which then allowed it to load that class that had not been found in memory right after the rpm upgrade.
Hope that specific case helps someone.
This isuse because of coflict merge. If you have new commit in origin and not get those files; also you have changed the local master branch files then you got this error. You should fetch again to a new directory and copy your files into that path. Finally, you should commit and push your changes.
I found some elegant solution on MSDN
System.Console.Write('\uXXXX') //XXXX is hex Unicode for character
This simple program writes ? right on the screen.
using System;
public class Test
{
public static void Main()
{
Console.Write('\u2103'); //? character code
}
}
For version 4.0, 4.5 on Windows
File -> Settings
Then,
Editor -> General -> Appearance -> Show line numbers
For version 4.0 on Mac OSX
PyCharm-->Preferences
Then,
Editor-->General-->Appearance-->checkbox: "Show line numbers"
You will have to parse the content somehow ... I find using LINQ the most easy way to do it. Again, it all depends on your exact scenario. Here's a working example using LINQ to format an input XML string.
string FormatXml(string xml)
{
try
{
XDocument doc = XDocument.Parse(xml);
return doc.ToString();
}
catch (Exception)
{
// Handle and throw if fatal exception here; don't just ignore them
return xml;
}
}
[using statements are ommitted for brevity]
This isn't easy, unless your regexp engine has special support for it. The easiest way would be to use a negative-match option, for example:
$var !~ /^foo$/
or die "too much foo";
If not, you have to do something evil:
$var =~ /^(($)|([^f].*)|(f[^o].*)|(fo[^o].*)|(foo.+))$/
or die "too much foo";
That one basically says "if it starts with non-f
, the rest can be anything; if it starts with f
, non-o
, the rest can be anything; otherwise, if it starts fo
, the next character had better not be another o
".
you need to include the Wordpress loop in your search.php this is example
search.php template file:
<?php get_header(); ?>
<?php
$s=get_search_query();
$args = array(
's' =>$s
);
// The Query
$the_query = new WP_Query( $args );
if ( $the_query->have_posts() ) {
_e("<h2 style='font-weight:bold;color:#000'>Search Results for: ".get_query_var('s')."</h2>");
while ( $the_query->have_posts() ) {
$the_query->the_post();
?>
<li>
<a href="<?php the_permalink(); ?>"><?php the_title(); ?></a>
</li>
<?php
}
}else{
?>
<h2 style='font-weight:bold;color:#000'>Nothing Found</h2>
<div class="alert alert-info">
<p>Sorry, but nothing matched your search criteria. Please try again with some different keywords.</p>
</div>
<?php } ?>
<?php get_sidebar(); ?>
<?php get_footer(); ?>
I just spent half a day trying to connect my various Android devices to my MacBook Pro (running 10.8.2). It turns out to have been a Micro USB cable problem. I have many Micro USB cables, but only the one that came packaged with my Galaxy Nexus works to connect the phones to my computer. I don't know if this is due to damage, or some proprietary manufacturing, but please remember to try connecting the phone with the cable that was packaged with it.
In terms of entities (or objects) you have a Class
object which has a collection of Students
and a Student
object that has a collection of Classes
. Since your StudentClass
table only contains the Ids and no extra information, EF does not generate an entity for the joining table. That is the correct behaviour and that's what you expect.
Now, when doing inserts or updates, try to think in terms of objects. E.g. if you want to insert a class with two students, create the Class
object, the Student
objects, add the students to the class Students
collection add the Class
object to the context and call SaveChanges
:
using (var context = new YourContext())
{
var mathClass = new Class { Name = "Math" };
mathClass.Students.Add(new Student { Name = "Alice" });
mathClass.Students.Add(new Student { Name = "Bob" });
context.AddToClasses(mathClass);
context.SaveChanges();
}
This will create an entry in the Class
table, two entries in the Student
table and two entries in the StudentClass
table linking them together.
You basically do the same for updates. Just fetch the data, modify the graph by adding and removing objects from collections, call SaveChanges
. Check this similar question for details.
Edit:
According to your comment, you need to insert a new Class
and add two existing Students
to it:
using (var context = new YourContext())
{
var mathClass= new Class { Name = "Math" };
Student student1 = context.Students.FirstOrDefault(s => s.Name == "Alice");
Student student2 = context.Students.FirstOrDefault(s => s.Name == "Bob");
mathClass.Students.Add(student1);
mathClass.Students.Add(student2);
context.AddToClasses(mathClass);
context.SaveChanges();
}
Since both students are already in the database, they won't be inserted, but since they are now in the Students
collection of the Class
, two entries will be inserted into the StudentClass
table.
If you are not a big fan of operator overloading, or just more of a functional type:
// use flatMap
let result = [
["merge", "me"],
["We", "shall", "unite"],
["magic"]
].flatMap { $0 }
// Output: ["merge", "me", "We", "shall", "unite", "magic"]
// ... or reduce
[[1],[2],[3]].reduce([], +)
// Output: [1, 2, 3]
Use ng-value
for set value of input box after clicking on a button
:
"input type="email" class="form-control" id="email2" ng-value="myForm.email2" placeholder="Email"
and
Set Value as:
$scope.myForm.email2 = $scope.names[0].success;
While your mileage may vary, running npm cache verify
fixed the issue for me.
Resized VM with more memory fixed this issue.
Yes, I believe you are creating thousands of objects. If you're looking for an easy way to delete a bunch of them at once, use canvas tags described here. This lets you perform the same operation (such as deletion) on a large number of objects.
Assuming that all viewControllers that you present modally are wrapped inside a new navigationController (which you should always do anyway), you can add this property to your VC.
private var wasPushed: Bool {
guard let vc = navigationController?.viewControllers.first where vc == self else {
return true
}
return false
}
You can use Ternary operator logic Ternary operator logic is the process of using "(condition)? (true return value) : (false return value)" statements to shorten your if/else structures. i.e
/* most basic usage */
$var = 5;
$var_is_greater_than_two = ($var > 2 ? true : false); // returns true
For MAC user, add this line into your Default Settings
File path is: /Users/USER_NAME/Library/Application Support/Code/User/settings.json
"tslint.autoFixOnSave": true
Sample of the file would be:
{
"window.zoomLevel": 0,
"workbench.iconTheme": "vscode-icons",
"typescript.check.tscVersion": false,
"vsicons.projectDetection.disableDetect": true,
"typescript.updateImportsOnFileMove.enabled": "always",
"eslint.autoFixOnSave": true,
"tslint.autoFixOnSave": true
}
For C#:
driver.Manage().Window.Maximize();
For Java:
driver.manage().window().maximize();
The key here is the name
attribute of the f
object representing the opened file. You get it like that:
>>> f = open('/Users/Desktop/febROSTER2012.xls')
>>> f.name
'/Users/Desktop/febROSTER2012.xls'
Does it help?
GPS, the Global Positioning System run by the United States Military, is free for civilian use, though the reality is that we're paying for it with tax dollars.
However, GPS on cell phones is a bit more murky. In general, it won't cost you anything to turn on the GPS in your cell phone, but when you get a location it usually involves the cell phone company in order to get it quickly with little signal, as well as get a location when the satellites aren't visible (since the gov't requires a fix even if the satellites aren't visible for emergency 911 purposes). It uses up some cellular bandwidth. This also means that for phones without a regular GPS receiver, you cannot use the GPS at all if you don't have cell phone service.
For this reason most cell phone companies have the GPS in the phone turned off except for emergency calls and for services they sell you (such as directions).
This particular kind of GPS is called assisted GPS (AGPS), and there are several levels of assistance used.
A normal GPS receiver listens to a particular frequency for radio signals. Satellites send time coded messages at this frequency. Each satellite has an atomic clock, and sends the current exact time as well.
The GPS receiver figures out which satellites it can hear, and then starts gathering those messages. The messages include time, current satellite positions, and a few other bits of information. The message stream is slow - this is to save power, and also because all the satellites transmit on the same frequency and they're easier to pick out if they go slow. Because of this, and the amount of information needed to operate well, it can take 30-60 seconds to get a location on a regular GPS.
When it knows the position and time code of at least 3 satellites, a GPS receiver can assume it's on the earth's surface and get a good reading. 4 satellites are needed if you aren't on the ground and you want altitude as well.
As you saw above, it can take a long time to get a position fix with a normal GPS. There are ways to speed this up, but unless you're carrying an atomic clock with you all the time, or leave the GPS on all the time, then there's always going to be a delay of between 5-60 seconds before you get a location.
In order to save cost, most cell phones share the GPS receiver components with the cellular components, and you can't get a fix and talk at the same time. People don't like that (especially when there's an emergency) so the lowest form of GPS does the following:
This saves a lot of money on the phone design, but it has a heavy load on cellular bandwidth, and with a lot of requests coming it requires a lot of fast servers. Still, overall it can be cheaper and faster to implement. They are reluctant, however, to release GPS based features on these phones due to this load - so you won't see turn by turn navigation here.
More recent designs include a full GPS chip. They still get data from the phone company - such as current location based on tower positioning, and current satellite locations - this provides sub 1 second fix times. This information is only needed once, and the GPS can keep track of everything after that with very little power. If the cellular network is unavailable, then they can still get a fix after awhile. If the GPS satellites aren't visible to the receiver, then they can still get a rough fix from the cellular towers.
But to completely answer your question - it's as free as the phone company lets it be, and so far they do not charge for it at all. I doubt that's going to change in the future. In the higher end phones with a full GPS receiver you may even be able to load your own software and access it, such as with mologogo on a motorola iDen phone - the J2ME development kit is free, and the phone is only $40 (prepaid phone with $5 credit). Unlimited internet is about $10 a month, so for $40 to start and $10 a month you can get an internet tracking system. (Prices circa August 2008)
It's only going to get cheaper and more full featured from here on out...
Re: Google maps and such
Yes, Google maps and all other cell phone mapping systems require a data connection of some sort at varying times during usage. When you move far enough in one direction, for instance, it'll request new tiles from its server. Your average phone doesn't have enough storage to hold a map of the US, nor the processor power to render it nicely. iPhone would be able to if you wanted to use the storage space up with maps, but given that most iPhones have a full time unlimited data plan most users would rather use that space for other things.
I think we might as well add Apple's App of the year for 2011, Instagram, to the list which uses django intensively.
AFAIK, there is no way to do this reliably, unless you switch to an array. Which honestly, doesn't seem strange - it's seems pretty straight forward to me that arrays are countable, and objects aren't.
Probably the closest you'll get is something like this
// Monkey patching on purpose to make a point
Object.prototype.length = function()
{
var i = 0;
for ( var p in this ) i++;
return i;
}
alert( {foo:"bar", bar: "baz"}.length() ); // alerts 3
But this creates problems, or at least questions. All user-created properties are counted, including the _length function itself! And while in this simple example you could avoid it by just using a normal function, that doesn't mean you can stop other scripts from doing this. so what do you do? Ignore function properties?
Object.prototype.length = function()
{
var i = 0;
for ( var p in this )
{
if ( 'function' == typeof this[p] ) continue;
i++;
}
return i;
}
alert( {foo:"bar", bar: "baz"}.length() ); // alerts 2
In the end, I think you should probably ditch the idea of making your objects countable and figure out another way to do whatever it is you're doing.
It is not possible. §2.3 says that "." is an unreserved character and that "URIs that differ in the replacement of an unreserved character with its corresponding percent-encoded US-ASCII octet are equivalent". Therefore, /%2E%2E/
is the same as /../
, and that will get normalized away.
(This is a combination of an answer by bobince and a comment by slowpoison.)
If you have a fixed height in your container, you can set line-height to be the same as height, and it will center vertically. Then just add text-align to center horizontally.
Here's an example: http://jsfiddle.net/Cthulhu/QHEnL/1/
EDIT
Your code should look like this:
.img_thumb {
float: left;
height: 120px;
margin-bottom: 5px;
margin-left: 9px;
position: relative;
width: 147px;
background-color: rgba(0, 0, 0, 0.5);
border-radius: 3px;
line-height:120px;
text-align:center;
}
.img_thumb img {
vertical-align: middle;
}
The images will always be centered horizontally and vertically, no matter what their size is. Here's 2 more examples with images with different dimensions:
http://jsfiddle.net/Cthulhu/QHEnL/6/
http://jsfiddle.net/Cthulhu/QHEnL/7/
UPDATE
It's now 2016 (the future!) and looks like a few things are changing (finally!!).
Back in 2014, Microsoft announced that it will stop supporting IE8 in all versions of Windows and will encourage all users to update to IE11 or Edge. Well, this is supposed to happen next Tuesday (12th January).
Why does this matter? With the announced death of IE8, we can finally start using CSS3 magic.
With that being said, here's an updated way of aligning elements, both horizontally and vertically:
.container {
position: relative;
}
.container .element {
position: absolute;
left: 50%;
top: 50%;
transform: translate(-50%, -50%);
}
Using this transform: translate();
method, you don't even need to have a fixed height in your container, it's fully dynamic. Your element has fixed height or width? Your container as well? No? It doesn't matter, it will always be centered because all centering properties are fixed on the child, it's independent from the parent. Thank you CSS3.
If you only need to center in one dimension, you can use translateY
or translateX
. Just try it for a while and you'll see how it works. Also, try to change the values of the translate
, you will find it useful for a bunch of different situations.
Here, have a new fiddle: https://jsfiddle.net/Cthulhu/1xjbhsr4/
For more information on transform
, here's a good resource.
Happy coding.
Try to use jquery-transport-xdr jQuery plugin for CORS requests in IE8/9.
This isn't the cleanest/quickest/easiest/most elegant solution, but it is a brute force one that I created to get the job done in a similar scenario:
DataTable dt = (DataTable)Session["dtAllOrders"];
DataTable dtSpecificOrders = new DataTable();
// Create new DataColumns for dtSpecificOrders that are the same as in "dt"
DataColumn dcID = new DataColumn("ID", typeof(int));
DataColumn dcName = new DataColumn("Name", typeof(string));
dtSpecificOrders.Columns.Add(dtID);
dtSpecificOrders.Columns.Add(dcName);
DataRow[] orderRows = dt.Select("CustomerID = 2");
foreach (DataRow dr in orderRows)
{
DataRow myRow = dtSpecificOrders.NewRow(); // <-- create a brand-new row
myRow[dcID] = int.Parse(dr["ID"]);
myRow[dcName] = dr["Name"].ToString();
dtSpecificOrders.Rows.Add(myRow); // <-- this will add the new row
}
The names in the DataColumns must match those in your original table for it to work. I just used "ID" and "Name" as examples.
A SOAP request is an XML file consisting of the parameters you are sending to the server.
The SOAP response is equally an XML file, but now with everything the service wants to give you.
Basically the WSDL is a XML file that explains the structure of those two XML.
To implement simple SOAP clients in Java, you can use the SAAJ framework (it is shipped with JSE 1.6 and above):
SOAP with Attachments API for Java (SAAJ) is mainly used for dealing directly with SOAP Request/Response messages which happens behind the scenes in any Web Service API. It allows the developers to directly send and receive soap messages instead of using JAX-WS.
See below a working example (run it!) of a SOAP web service call using SAAJ. It calls this web service.
import javax.xml.soap.*;
public class SOAPClientSAAJ {
// SAAJ - SOAP Client Testing
public static void main(String args[]) {
/*
The example below requests from the Web Service at:
http://www.webservicex.net/uszip.asmx?op=GetInfoByCity
To call other WS, change the parameters below, which are:
- the SOAP Endpoint URL (that is, where the service is responding from)
- the SOAP Action
Also change the contents of the method createSoapEnvelope() in this class. It constructs
the inner part of the SOAP envelope that is actually sent.
*/
String soapEndpointUrl = "http://www.webservicex.net/uszip.asmx";
String soapAction = "http://www.webserviceX.NET/GetInfoByCity";
callSoapWebService(soapEndpointUrl, soapAction);
}
private static void createSoapEnvelope(SOAPMessage soapMessage) throws SOAPException {
SOAPPart soapPart = soapMessage.getSOAPPart();
String myNamespace = "myNamespace";
String myNamespaceURI = "http://www.webserviceX.NET";
// SOAP Envelope
SOAPEnvelope envelope = soapPart.getEnvelope();
envelope.addNamespaceDeclaration(myNamespace, myNamespaceURI);
/*
Constructed SOAP Request Message:
<SOAP-ENV:Envelope xmlns:SOAP-ENV="http://schemas.xmlsoap.org/soap/envelope/" xmlns:myNamespace="http://www.webserviceX.NET">
<SOAP-ENV:Header/>
<SOAP-ENV:Body>
<myNamespace:GetInfoByCity>
<myNamespace:USCity>New York</myNamespace:USCity>
</myNamespace:GetInfoByCity>
</SOAP-ENV:Body>
</SOAP-ENV:Envelope>
*/
// SOAP Body
SOAPBody soapBody = envelope.getBody();
SOAPElement soapBodyElem = soapBody.addChildElement("GetInfoByCity", myNamespace);
SOAPElement soapBodyElem1 = soapBodyElem.addChildElement("USCity", myNamespace);
soapBodyElem1.addTextNode("New York");
}
private static void callSoapWebService(String soapEndpointUrl, String soapAction) {
try {
// Create SOAP Connection
SOAPConnectionFactory soapConnectionFactory = SOAPConnectionFactory.newInstance();
SOAPConnection soapConnection = soapConnectionFactory.createConnection();
// Send SOAP Message to SOAP Server
SOAPMessage soapResponse = soapConnection.call(createSOAPRequest(soapAction), soapEndpointUrl);
// Print the SOAP Response
System.out.println("Response SOAP Message:");
soapResponse.writeTo(System.out);
System.out.println();
soapConnection.close();
} catch (Exception e) {
System.err.println("\nError occurred while sending SOAP Request to Server!\nMake sure you have the correct endpoint URL and SOAPAction!\n");
e.printStackTrace();
}
}
private static SOAPMessage createSOAPRequest(String soapAction) throws Exception {
MessageFactory messageFactory = MessageFactory.newInstance();
SOAPMessage soapMessage = messageFactory.createMessage();
createSoapEnvelope(soapMessage);
MimeHeaders headers = soapMessage.getMimeHeaders();
headers.addHeader("SOAPAction", soapAction);
soapMessage.saveChanges();
/* Print the request message, just for debugging purposes */
System.out.println("Request SOAP Message:");
soapMessage.writeTo(System.out);
System.out.println("\n");
return soapMessage;
}
}
In general, no. int(wchar_t(255)) == int(char(255))
of course, but that just means they have the same int value. They may not represent the same characters.
You would see such a discrepancy in the majority of Windows PCs, even. For instance, on Windows Code page 1250, char(0xFF)
is the same character as wchar_t(0x02D9)
(dot above), not wchar_t(0x00FF)
(small y with diaeresis).
Note that it does not even hold for the ASCII range, as C++ doesn't even require ASCII. On IBM systems in particular you may see that 'A' != 65
Just want to add my two cents on this old post:
In my opinion, almost all of relational database engines include a commit transaction execution automatically after execute a DDL command even when you have autocommit=false, So you don't need to start a transaction to avoid a potential truncated object creation because It is completely unnecessary.
For those looking for a dplyr/tidyverse version. Building on Gavin Simpson solution:
# Create DF
set.seed(123)
x <- rnorm(100)
DF <- data.frame(x = x,
y = 4 + (1.5*x) + rnorm(100, sd = 2),
b = gl(5, 20))
# Change reference level
DF = DF %>% mutate(b = relevel(b, 3))
m2 <- lm(y ~ x + b, data = DF)
summary(m2)
Like already said, the -cp is just for telling the jvm in the command line which class to use for the main thread and where it can find the libraries (define classpath). In -jar it expects the class-path and main-class to be defined in the jar file manifest. So other is for defining things in command line while other finding them inside the jar manifest. There is no difference in performance. You can't use them at the same time, -jar will override the -cp.
Though even if you use -cp, it will still check the manifest file. So you can define some of the class-paths in the manifest and some in the command line. This is particularly useful when you have a dependency on some 3rd party jar, which you might not provide with your build or don't want to provide (expecting it to be found already in the system where it's to be installed for example). So you can use it to provide external jars. It's location may vary between systems or it may even have a different version on different system (but having the same interfaces). This way you can build the app with other version and add the actual 3rd party dependency to class-path on the command line when running it on different systems.
Are you using JTextArea
's append(String)
method to add additional text?
JTextArea txtArea = new JTextArea("Hello, World\n", 20, 20);
txtArea.append("Goodbye Cruel World\n");
Add following option for java application:
-Dhttps.protocols=TLSv1,TLSv1.1,TLSv1.2
I guess what you need is np.set_printoptions(suppress=True)
, for details see here:
http://pythonquirks.blogspot.fr/2009/10/controlling-printing-in-numpy.html
For SciPy.org numpy documentation, which includes all function parameters (suppress isn't detailed in the above link), see here: https://docs.scipy.org/doc/numpy/reference/generated/numpy.set_printoptions.html
check out jquery ui 1.8.5 it's available here http://ajax.googleapis.com/ajax/libs/jqueryui/1.8.5/jquery-ui.js and it has the new button for dialog ui implementation
You may have a table called 'test'
COPY test(gid, "name", the_geom)
FROM '/home/data/sample.csv'
WITH DELIMITER ','
CSV HEADER
For question #1, let's break it into two parts. First, increment any document that has "items.item_name" equal to "my_item_two". For this you'll have to use the positional "$" operator. Something like:
db.bar.update( {user_id : 123456 , "items.item_name" : "my_item_two" } ,
{$inc : {"items.$.price" : 1} } ,
false ,
true);
Note that this will only increment the first matched subdocument in any array (so if you have another document in the array with "item_name" equal to "my_item_two", it won't get incremented). But this might be what you want.
The second part is trickier. We can push a new item to an array without a "my_item_two" as follows:
db.bar.update( {user_id : 123456, "items.item_name" : {$ne : "my_item_two" }} ,
{$addToSet : {"items" : {'item_name' : "my_item_two" , 'price' : 1 }} } ,
false ,
true);
For your question #2, the answer is easier. To increment the total and the price of item_three in any document that contains "my_item_three," you can use the $inc operator on multiple fields at the same time. Something like:
db.bar.update( {"items.item_name" : {$ne : "my_item_three" }} ,
{$inc : {total : 1 , "items.$.price" : 1}} ,
false ,
true);
My Cascading Style Sheet used:
body {background-color: #FAF0E6; font-family: arial, sans-serif }
It worked in Internet Explorer but failed in Firefox and Chrome. I changed it to:
body {background: #FAF0E6; font-family: arial, sans-serif }
(i.e. I removed -color
.)
It works in all three browsers. (I had to restart Chrome.)
In my testing with Tomcat and Java 8, the JVM was opening an ephemeral port in addition to the one specified for JMX. The following code fixed me up; give it a try if you are having issues where your JMX client (e.g. VisualVM is not connecting.
-Dcom.sun.management.jmxremote.port=8989
-Dcom.sun.management.jmxremote.rmi.port=8989
Integer class has static method toString() - you can use it:
int i = 1234;
String str = Integer.toString(i);
Returns a String object representing the specified integer. The argument is converted to signed decimal representation and returned as a string, exactly as if the argument and radix 10 were given as arguments to the toString(int, int) method.
You can also use an image:
UIImage *maskingImage = [UIImage imageNamed:@"bannerBarBottomMask.png"];
CALayer *maskingLayer = [CALayer layer];
maskingLayer.frame = CGRectMake(-(self.yourView.frame.size.width - self.yourView.frame.size.width) / 2
, 0
, maskingImage.size.width
, maskingImage.size.height);
[maskingLayer setContents:(id)[maskingImage CGImage]];
[self.yourView.layer setMask:maskingLayer];
you can remove this alert by doing following:
<input type="text" pattern="[a-zA-Z]+"
oninvalid="setCustomValidity(' ')"
/>
just set the custom message to one blank space
As far as I can tell Sqlite doesn't support INFORMATION_SCHEMA. Instead it has sqlite_master.
I don't think you can get the list you want in just one command. You can get the information you need using sql or pragma, then use regex to split it into the format you need
SELECT sql FROM sqlite_master WHERE name='tablename';
gives you something like
CREATE TABLE tablename(
col1 INTEGER PRIMARY KEY AUTOINCREMENT NOT NULL,
col2 NVARCHAR(100) NOT NULL,
col3 NVARCHAR(100) NOT NULL,
)
Or using pragma
PRAGMA table_info(tablename);
gives you something like
0|col1|INTEGER|1||1
1|col2|NVARCHAR(100)|1||0
2|col3|NVARCHAR(100)|1||0
try this:
struct Pos{
int x;
int y;
inline Pos& operator=(const Pos& other){
x=other.x;
y=other.y;
return *this;
}
inline Pos operator+(const Pos& other) const {
Pos res {x+other.x,y+other.y};
return res;
}
const inline bool operator==(const Pos& other) const {
return (x==other.x and y == other.y);
}
};
This is because your local repo hasn't checked in with the upstream remotes. To have this work as you're expecting it to, use git fetch
then run a git status
again.
From the netstat
output you can see the process is listening on address 127.0.0.1
tcp 0 0 127.0.0.1:9000 0.0.0.0:* ...
from the exception message you can see that it tries to connect to address 127.0.1.1
java.net.ConnectException: Call From marta-komputer/127.0.1.1 to localhost:9000 failed ...
further in the exception it's mentionend
For more details see: http://wiki.apache.org/hadoop/ConnectionRefused
on this page you find
Check that there isn't an entry for your hostname mapped to 127.0.0.1 or 127.0.1.1 in /etc/hosts (Ubuntu is notorious for this)
so the conclusion is to remove this line in your /etc/hosts
127.0.1.1 marta-komputer
I think everyone has done a great job responding to your question. I'm just adding more information about thread versus process in Linux to clarify and summarize some of the previous responses in context of kernel. So, my response is in regarding to kernel specific code in Linux. According to Linux Kernel documentation, there is no clear distinction between thread versus process except thread uses shared virtual address space unlike process. Also note, the Linux Kernel uses the term "task" to refer to process and thread in general.
"There are no internal structures implementing processes or threads, instead there is a struct task_struct that describe an abstract scheduling unit called task"
Also according to Linus Torvalds, you should NOT think about process versus thread at all and because it's too limiting and the only difference is COE or Context of Execution in terms of "separate the address space from the parent " or shared address space. In fact he uses a web server example to make his point here (which highly recommend reading).
Full credit to linux kernel documentation
There are multiple ways of doing things because there were never any protocols built into the standards. You use whatever ad-hoc "standard" your equipment implements.
Just based on the names, RTS/CTS would seem to be a natural fit. However, it's backwards from the needs that developed over time. These signals were created at a time when a terminal would batch-send a screen full of data, but the receiver might not be ready, thus the need for flow control. Later the problem would be reversed, as the terminal couldn't keep up with data coming from the host, but the RTS/CTS signals go the wrong direction - the interface isn't orthogonal, and there's no corresponding signals going the other way. Equipment makers adapted as best they could, including using the DTR and DSR signals.
EDIT
To add a bit more detail, its a two level hierarchy so "officially" both must happen for communication to take place. The behavior is defined in the original CCITT (now ITU-T) standard V.28.
The DCE is a modem connecting between the terminal and telephone network. In the telephone network was another piece of equipment which split off to the data network, eg. X.25.
The modem has three states: Powered off, Ready (Data Set Ready is true), and connected (Data Carrier Detect)
The terminal can't do anything until the modem is connected.
When the modem wants to send data, it raises RTS and the modem grants the request with CTS. The modem lowers CTS when its internal buffer is full.
So nostalgic!
This snippet uses wmic.exe to build the date string. It isn't mangled by locale settings
rem DATE as YYYY-MM-DD via WMIC.EXE
for /f "tokens=2 delims==" %%I in ('wmic os get localdatetime /format:list') do set datetime=%%I
set RDATE=%datetime:~0,4%-%datetime:~4,2%-%datetime:~6,2%
Microsoft has a nice chart control. Download it here. Great video on this here. Example code is here. Happy coding!
What are you trying to accomplish? You can access characters in a string just like an array:
$s = 'abcd';
echo $s[0];
prints 'a'
Based on vSync's answer, the pure javascript method is lightning fast for large amount of objects. Here is the Fiddle: https://jsfiddle.net/xeyq2d5r/8/
[1]: https://jsfiddle.net/xeyq2d5r/8/ "JSFiddle"
I received favorable tests for the 3rd method proposed, that uses the native javascript vs HTML Canvas
Google was pretty competive for option 1 and 3, 2 bombed.
FireFox 48:
Method 1 took 938.895 milliseconds.
Method 2 took 1536.355 milliseconds.
Method 3 took 135.91499999999996 milliseconds.
Edge 11
Method 1 took 4895.262839793865 milliseconds.
Method 2 took 6746.622271896686 milliseconds.
Method 3 took 1020.0315412885484 milliseconds.
Google Chrome: 52
Method 1 took 336.4399999999998 milliseconds.
Method 2 took 2271.71 milliseconds.
Method 3 took 333.30499999999984 milliseconds.
As of Visual Studio 2015 you can also do this with Interpolated Strings (its a compiler trick, so it doesn't matter which version of the .net framework you target).
string value = "String goes here";
string txt1 = $"{value,20}";
string txt2 = $"{value,-20}";
You can overwrite the existing jenkins.war
file with the new one and then restart Jenkins.
This file is usually located in /usr/share/jenkins
.
If this is not the case for your system, in Manage Jenkins -> System Information
, it will display the path to the .war
file under executable-war
.
As long as you do not use 1.4 version, you can use explicit annotation:
example:
@Query("select count(e) from Product e where e.area.code = ?1")
long countByAreaCode(String code);
With ECMAScript 6, you can use variable property names with the object literal syntax, like this:
var keyName = 'myKey';
var obj = {
[keyName]: 1
};
obj.myKey;//1
This syntax is available in the following newer browsers:
Edge 12+ (No IE support), FF34+, Chrome 44+, Opera 31+, Safari 7.1+
(https://kangax.github.io/compat-table/es6/)
You can add support to older browsers by using a transpiler such as babel. It is easy to transpile an entire project if you are using a module bundler such as rollup or webpack.
I just spent a few hours on this error, and while the other answers here helped me understand what was going on, they did not fix my particular problem.
I am working on a project that compiles using both clang++
and g++
. I was having no linking issues using clang++
, but was getting the undefined reference to 'typeinfo for
error with g++
.
The important point: Linking order MATTERS with g++
. If you list the libraries you want to link in an order which is incorrect you can get the typeinfo
error.
See this SO question for more details on linking order with gcc
/g++
.
Debounced / throttled model updates for angularjs : http://jsfiddle.net/lgersman/vPsGb/3/
In your case there is nothing more to do than using the directive in the jsfiddle code like this:
<input
id="searchText"
type="search"
placeholder="live search..."
ng-model="searchText"
ng-ampere-debounce
/>
Its basically a small piece of code consisting of a single angular directive named "ng-ampere-debounce" utilizing http://benalman.com/projects/jquery-throttle-debounce-plugin/ which can be attached to any dom element. The directive reorders the attached event handlers so that it can control when to throttle events.
You can use it for throttling/debouncing * model angular updates * angular event handler ng-[event] * jquery event handlers
Have a look : http://jsfiddle.net/lgersman/vPsGb/3/
The directive will be part of the Orangevolt Ampere framework (https://github.com/lgersman/jquery.orangevolt-ampere).
Use Object.keys(myObject).length
to get the length of object/array
var myObject = new Object();
myObject["firstname"] = "Gareth";
myObject["lastname"] = "Simpson";
myObject["age"] = 21;
console.log(Object.keys(myObject).length); //3
_x000D_
To hide static cells in UITable:
In your UITableView controller delegate class:
Objective-C:
- (CGFloat)tableView:(UITableView *)tableView heightForRowAtIndexPath:(NSIndexPath *)indexPath
{
UITableViewCell* cell = [super tableView:tableView cellForRowAtIndexPath:indexPath];
if(cell == self.cellYouWantToHide)
return 0; //set the hidden cell's height to 0
return [super tableView:tableView heightForRowAtIndexPath:indexPath];
}
Swift:
override func tableView(tableView: UITableView, heightForRowAtIndexPath indexPath: NSIndexPath) -> CGFloat {
var cell = super.tableView(tableView, cellForRowAtIndexPath: indexPath)
if cell == self.cellYouWantToHide {
return 0
}
return super.tableView(tableView, heightForRowAtIndexPath: indexPath)
}
This method will get called for each cell in the UITable. Once it calls it for the cell you want to hide, we set its height to 0. We identify the target cell by creating an outlet for it:
You put the if
at the end:
[y for y in a if y not in b]
List comprehensions are written in the same order as their nested full-specified counterparts, essentially the above statement translates to:
outputlist = []
for y in a:
if y not in b:
outputlist.append(y)
Your version tried to do this instead:
outputlist = []
if y not in b:
for y in a:
outputlist.append(y)
but a list comprehension must start with at least one outer loop.
this comes because you add some property to one of your model and you did not update-Database
. to solve this you have to remove it from model or you have to add-migration anyProperName
with that properties and Update-database
.
Below I sum up Prateek Joshi's awesome explanation.
The theory:
That is:
And for an example:
Also, if you haven't already, I suggest reading Roger Pate's answer.
I'm not aware of anything like a single table that lets you compare all of them in at one glance (I'm not sure such a table would even be feasible).
Of course the ISO standard document enumerates the complexity requirements in detail, sometimes in various rather readable tables, other times in less readable bullet points for each specific method.
Also the STL library reference at http://www.cplusplus.com/reference/stl/ provides the complexity requirements where appropriate.
Here and easy Example.
<!-- Navigation bar-->
<nav class="navbar navbar-toggleable-md bg-info navbar-inverse">
<div class="container">
<button class="navbar-toggler" data-toggle="collapse" data-target="#mainMenu">
<span class="navbar-toggler-icon"></span>
</button>
<div class="collapse navbar-collapse" id="mainMenu">
<div class="navbar-nav ml-auto " style="width:100%">
<a class="nav-item nav-link active" href="#">Home</a>
<a class="nav-item nav-link" href="#">About</a>
<a class="nav-item nav-link" href="#">Training</a>
<a class="nav-item nav-link" href="#">Contact</a>
</div>
</div>
</div>
</nav>
Use set_index
with stack
for MultiIndex Series
, then for DataFrame
add reset_index
with rename
:
df1 = (df.set_index(["location", "name"])
.stack()
.reset_index(name='Value')
.rename(columns={'level_2':'Date'}))
print (df1)
location name Date Value
0 A test Jan-2010 12
1 A test Feb-2010 20
2 A test March-2010 30
3 B foo Jan-2010 18
4 B foo Feb-2010 20
5 B foo March-2010 25
[UPDATE]
The original question, and the answer below applied specifically to the IE11 preview releases.
The final release version of IE11 does in fact provide the ability to switch browser modes from the Emulation tab in the dev tools:
Having said that, the advice I've given here (and elsewhere) to avoid using compatibility modes for testing is still valid: If you want to test your site for compatibility with older IE versions, you should always do your testing in a real copy of those IE version.
However, this does mean that the registry hack described in @EugeneXa's answer to bring back the old dev tools is no longer necessary, since the new dev tools do now have the feature he was missing.
The IE devs have deliberately deprecated the ability to switch browser mode.
There are not many reasons why people would be switching modes in the dev tools, but one of the main reasons is because they want to test their site in old IE versions. Unfortunately, the various compatibility modes that IE supplies have never really been fully compatible with old versions of IE, and testing using compat mode is simply not a good enough substitute for testing in real copies of IE8, IE9, etc.
The IE devs have recognised this and are deliberately making it harder for devs to make this mistake.
The best practice is to use real copies of each IE version to test your site instead.
The various compatiblity modes are still available inside IE11, but can only be accessed if a site explicitly states that it wants to run in compat mode. You would do this by including an X-UA-Compatible
header on your page.
And the Document Mode drop-box is still available, but will only ever offer the options of "Edge" (that is, the best mode available to the current IE version, so IE11 mode in IE11) or the mode that the page is running in.
So if you go to a page that is loaded in compat mode, you will have the option to switch between the specific compat mode that the page was loaded in or IE11 "Edge" mode.
And if you go to a page that loads in IE11 mode, then you will only be offered the 'edge' mode and nothing else.
This means that it does still allow you to test how a compat mode page reacts to being updated to work in Edge mode, which is about the only really legitimate use-case for the document mode drop-box anyway.
The IE11 Document Mode drop box has an i
icon next to it which takes you to the modern.ie website. The point of this is to encourage you to download the VMs that MS are supplying for us to test our sites using real copies of each version of IE. This will give you a much more accurate testing experience, and is strongly enouraged as a much better practice than testing by switching the mode in dev tools.
Hope that explains things a bit for you.
I noticed someone mentioned jQuery, but I didn't know there was an isArray()
function. It turns out it was added in version 1.3.
jQuery implements it as Peter suggests:
isArray: function( obj ) {
return toString.call(obj) === "[object Array]";
},
Having put a lot of faith in jQuery already (especially their techniques for cross-browser compatibility) I will either upgrade to version 1.3 and use their function (providing that upgrading doesn’t cause too many problems) or use this suggested method directly in my code.
Many thanks for the suggestions.
The above solutions missed out on where to keep your backup (.bak) file. This should do the trick. It worked for me.
I tested below code with SQL Server 2008 R2 Express and I believe we should have solution for all 6 steps you outlined. Let's take on them one-by-one:
We can enable TCP/IP protocol with WMI:
set wmiComputer = GetObject( _
"winmgmts:" _
& "\\.\root\Microsoft\SqlServer\ComputerManagement10")
set tcpProtocols = wmiComputer.ExecQuery( _
"select * from ServerNetworkProtocol " _
& "where InstanceName = 'SQLEXPRESS' and ProtocolName = 'Tcp'")
if tcpProtocols.Count = 1 then
' set tcpProtocol = tcpProtocols(0)
' I wish this worked, but unfortunately
' there's no int-indexed Item property in this type
' Doing this instead
for each tcpProtocol in tcpProtocols
dim setEnableResult
setEnableResult = tcpProtocol.SetEnable()
if setEnableResult <> 0 then
Wscript.Echo "Failed!"
end if
next
end if
I believe your solution will work, just make sure you specify the right port. I suggest we pick a different port than 1433 and make it a static port SQL Server Express will be listening on. I will be using 3456 in this post, but please pick a different number in the real implementation (I feel that we will see a lot of applications using 3456 soon :-)
We can use WMI again. Since we are using static port 3456, we just need to update two properties in IPAll section: disable dynamic ports and set the listening port to 3456
:
set wmiComputer = GetObject( _
"winmgmts:" _
& "\\.\root\Microsoft\SqlServer\ComputerManagement10")
set tcpProperties = wmiComputer.ExecQuery( _
"select * from ServerNetworkProtocolProperty " _
& "where InstanceName='SQLEXPRESS' and " _
& "ProtocolName='Tcp' and IPAddressName='IPAll'")
for each tcpProperty in tcpProperties
dim setValueResult, requestedValue
if tcpProperty.PropertyName = "TcpPort" then
requestedValue = "3456"
elseif tcpProperty.PropertyName ="TcpDynamicPorts" then
requestedValue = ""
end if
setValueResult = tcpProperty.SetStringValue(requestedValue)
if setValueResult = 0 then
Wscript.Echo "" & tcpProperty.PropertyName & " set."
else
Wscript.Echo "" & tcpProperty.PropertyName & " failed!"
end if
next
Note that I didn't have to enable any of the individual addresses to make it work, but if it is required in your case, you should be able to extend this script easily to do so.
Just a reminder that when working with WMI, WBEMTest.exe is your best friend!
I wish we could use WMI again, but unfortunately this setting is not exposed through WMI. There are two other options:
Use LoginMode
property of Microsoft.SqlServer.Management.Smo.Server
class, as described here.
Use LoginMode value in SQL Server registry, as described in this post. Note that by default the SQL Server Express instance is named SQLEXPRESS
, so for my SQL Server 2008 R2 Express instance the right registry key was
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Microsoft SQL Server\MSSQL10_50.SQLEXPRESS\MSSQLServer
.
You got this one covered.
Since we are using a static port assigned to our SQL Server Express instance, there's no need to use instance name in the server address anymore.
SQLCMD -U sa -P newPassword -S 192.168.0.120,3456
Please let me know if this works for you (fingers crossed!).
A little trick I use:
function Square(){
this.className = "Square";
this.corners = 4;
}
var MySquare = new Square();
console.log(MySquare.className); // "Square"
If you're using Facebook's javascript like button (so you can capture like events), here's what we had to do:
Due to a change Facebook recently made in the way comment dialogs display, we had to change how we were hiding it. The way they show the comment dialog has been 'moving' the content inside of the my overflow:hidden element so that the button looks really odd to the user after they click the like button.
In addition to adding a wrapping element with an 'overflow:none' style, you will need to hide the comment element that Facebook is putting onto your page:
Styles:
span.no_overflow {
overflow: none;
width: 50px;
}
.no_overflow span.fb_edge_comment_widget.fb_iframe_widget {
display: none;
}
Markup:
<span class="no_overflow">
<fb:like></fb:like>
</span>
We're still using the fb:like markup though. I have not tested this with the new div-based markup that Facebook is providing on their site now.
This is how I do it: Similar to the chosen answer, but using a static dialog class so it's more reusable, and also using onFocusChange instead of onClick.
editText.setOnFocusChangeListener(new View.OnFocusChangeListener() {
@Override
public void onFocusChange(View v, boolean hasFocus) {
if (hasFocus) {
DialogFragment datePickerFragment = new DatePickerFragment() {
@Override
public void onDateSet(DatePicker view, int year, int month, int day) {
Log.d(TAG, "onDateSet");
Calendar c = Calendar.getInstance();
c.set(year, month, day);
editText.setText(df.format(c.getTime()));
nextField.requestFocus(); //moves the focus to something else after dialog is closed
}
};
datePickerFragment.show(getActivity().getSupportFragmentManager(), "datePicker");
}
}
});
And the datepicker dialog.
public static class DatePickerFragment extends DialogFragment implements DatePickerDialog.OnDateSetListener{
@Override
public Dialog onCreateDialog(Bundle savedInstanceState) {
// Use the current date as the default date in the picker
final Calendar c = Calendar.getInstance();
int year = c.get(Calendar.YEAR);
int month = c.get(Calendar.MONTH);
int day = c.get(Calendar.DAY_OF_MONTH);
// Create a new instance of DatePickerDialog and return it
return new DatePickerDialog(getActivity(), this, year, month, day);
}
@Override
public void onDateSet(DatePicker view, int year, int month, int day) {
//blah
}
}
Try:
sudo service mongod stop
sudo mongod
To stop current active mongodb service, allowing you to then start a new one
I posted something similar here
From Joachim's answer, from Dianne Hackborn:
http://groups.google.com/group/android-developers/browse_thread/thread/d2a5c203dad6ec42
I ended up just using:
FragmentManager fm = getActivity().getSupportFragmentManager();
for(int i = 0; i < fm.getBackStackEntryCount(); ++i) {
fm.popBackStack();
}
But could equally have used something like:
((AppCompatActivity)getContext()).getSupportFragmentManager().popBackStack(String name, FragmentManager.POP_BACK_STACK_INCLUSIVE)
Which will pop all states up to the named one. You can then just replace the fragment with what you want
You can add an IPA as new app from Apple Configurator 2.
Nobody mentioned this, but in some cases the other method fails to recognize the datetime...
You can try this instead, which will convert the specified string representation of a date and time to an equivalent date and time value
string iDate = "05/05/2005";
DateTime oDate = Convert.ToDateTime(iDate);
MessageBox.Show(oDate.Day + " " + oDate.Month + " " + oDate.Year );
import java.io.*;
public class FileRead {
public static void main(String[] args) throws IOException {
File f=new File("C:\\Documents and Settings\\abc\\Desktop\\abc.pdf");
OutputStream oos = new FileOutputStream("test.pdf");
byte[] buf = new byte[8192];
InputStream is = new FileInputStream(f);
int c = 0;
while ((c = is.read(buf, 0, buf.length)) > 0) {
oos.write(buf, 0, c);
oos.flush();
}
oos.close();
System.out.println("stop");
is.close();
}
}
The easiest way so far. Hope this helps.
In the latest mongoose (3.8.1 at the time of writing), you do two things differently: (1) you have to pass single argument to sort(), which must be an array of constraints or just one constraint, and (2) execFind() is gone, and replaced with exec() instead. Therefore, with the mongoose 3.8.1 you'd do this:
var q = models.Post.find({published: true}).sort({'date': -1}).limit(20);
q.exec(function(err, posts) {
// `posts` will be of length 20
});
or you can chain it together simply like that:
models.Post
.find({published: true})
.sort({'date': -1})
.limit(20)
.exec(function(err, posts) {
// `posts` will be of length 20
});
In Ruby IO module documentation, I suppose.
Mode | Meaning
-----+--------------------------------------------------------
"r" | Read-only, starts at beginning of file (default mode).
-----+--------------------------------------------------------
"r+" | Read-write, starts at beginning of file.
-----+--------------------------------------------------------
"w" | Write-only, truncates existing file
| to zero length or creates a new file for writing.
-----+--------------------------------------------------------
"w+" | Read-write, truncates existing file to zero length
| or creates a new file for reading and writing.
-----+--------------------------------------------------------
"a" | Write-only, starts at end of file if file exists,
| otherwise creates a new file for writing.
-----+--------------------------------------------------------
"a+" | Read-write, starts at end of file if file exists,
| otherwise creates a new file for reading and
| writing.
-----+--------------------------------------------------------
"b" | Binary file mode (may appear with
| any of the key letters listed above).
| Suppresses EOL <-> CRLF conversion on Windows. And
| sets external encoding to ASCII-8BIT unless explicitly
| specified.
-----+--------------------------------------------------------
"t" | Text file mode (may appear with
| any of the key letters listed above except "b").
We use an ancient version of ComponentOne Chart.
Since --with-ssl is not recognized anymore I just installed the libssl-dev
.
For debian based systems:
sudo apt-get install libssl-dev
For CentOS and RHEL
sudo yum install openssl-devel
To restart the make first clean up by:
make clean
Then start again and execute the following commands one after the other:
./configure
make
make test
make install
For further information on OpenSSL visit the Ubuntu Help Page on OpenSSL.
So if you want to build your SVG stuff piece by piece in JS, then don't just use createElement()
, those won't draw, use this instead:
var ci = document.createElementNS("http://www.w3.org/2000/svg", "circle");
I think the error because the elements are undefined ,so you need to add window.onload
event which this event will defined your elements when the window is loaded.
window.addEventListener('load',Loaded,false);
function Loaded(){
var myButton = document.getElementById("myButton");
var myTextfield = document.getElementById("myTextfield");
function greetUser(userName) {
var greeting = "Hello " + userName + "!";
document.getElementsByTagName ("h2")[0].innerHTML = greeting;
}
myButton.onclick = function() {
var userName = myTextfield.value;
greetUser(userName);
return false;
}
}
You can bypass https using below commands:
npm config set strict-ssl false
or set the registry URL from https or http like below:
npm config set registry="http://registry.npmjs.org/"
However, Personally I believe bypassing https is not the real solution, but we can use it as a workaround.
To overcome the issue of Win7 32bit VB6, try copying from Windows Server 2003 C:\Windows\system32\
the files mscomctl.ocx
and mscomcctl.oba
.
Yes that's the correct method to do it with a GET request.
However, please remember that multiple query string parameters should be separated with &
eg. ?variable1=value1&variable2=value2
To see your log in SQL Developer
then press:
CTRL+SHIFT + L (or CTRL + CMD + L on macOS)
or
View -> Log
or by using mysql query
show errors;
@sdbrain's answer in Swift 3:
let url = URL.init(fileURLWithPath: Bundle.main.path(forResource: "index", ofType: "html", inDirectory: "www")!)
webView.loadRequest(NSURLRequest.init(url: url) as URLRequest)
The server will automatically abort connections over which no message has been received for the duration equal to the receive timeout (default is 10 mins). This is a DoS mitigation to prevent clients from forcing the server to have connections open for an indefinite amount of time.
Since the server aborts the connection because it has gone idle, the client gets this exception.
You can control how long the server allows a connection to go idle before aborting it by configuring the receive timeout on the server's binding. Credit: T.R.Vishwanath - MSFT
If you are using terminal just type the following:
locate my.cnf
For me, this error message originated from a banner from Admob SDK.
I was able to track the origin to "WebThread" by setting a conditional breakpoint.
Then I was able to get rid of the issue by encapsulating the Banner creation with:
dispatch_async(dispatch_get_main_queue(), ^{
_bannerForTableFooter = [[GADBannerView alloc] initWithAdSize:kGADAdSizeSmartBannerPortrait];
...
}
I don't know why this helped as I cannot see how this code was called from a non-main-thread.
Hope it can help anyone.
The in
operator only works on objects. You are using it on a string. Make sure your value is an object before you using $.each
. In this specific case, you have to parse the JSON:
$.each(JSON.parse(myData), ...);
I recommend using React.createRef()
and ref=this.elementRef
to get the DOM element reference instead of ReactDOM.findDOMNode(this)
. This way you can get the reference to the DOM element as an instance variable.
import React, { Component } from 'react';
import ReactDOM from 'react-dom';
class MenuItem extends Component {
constructor(props) {
super(props);
this.elementRef = React.createRef();
}
handleNVFocus = event => {
console.log('Focused: ' + this.props.menuItem.caption.toUpperCase());
}
componentDidMount() {
this.elementRef.addEventListener('nv-focus', this.handleNVFocus);
}
componentWillUnmount() {
this.elementRef.removeEventListener('nv-focus', this.handleNVFocus);
}
render() {
return (
<element ref={this.elementRef} />
)
}
}
export default MenuItem;
This is what worked for me... I did not use curl.
I was able to access a particular API url via browser, but when used in file_get_contents, it gave the error " failed to open stream".
Then, I modified the API URL that I wanted to call by encoding all double quotes with urlencoding and kept everything else untouched.
Sample format is given below:
$url = 'https://stackoverflow.com/questions'.urlencode('"'.$variable1.'"');
Then use
file_get_contents($url);
Try RGBA, e.g.
div { background-color: rgba(255, 255, 255, 0.5); }
As always, this won't work in every single browser ever written.
If you need to pass UUID for a primary key for your model or unique field then below code returns the UUID object -
import uuid
uuid.uuid4()
If you need to pass UUID as a parameter for URL you can do like below code -
import uuid
str(uuid.uuid4())
If you want the hex value for a UUID you can do the below one -
import uuid
uuid.uuid4().hex
You can use getComputedStyle()
.
var element = document.getElementById('image_1'),
style = window.getComputedStyle(element),
top = style.getPropertyValue('top');
It is actually 53 binary places, which translates to 15 stable decimal places, meaning that if you round a start out with a number with 15 decimal places, convert it to a double
, and then round the double
back to 15 decimal places you'll get the same number. To uniquely represent a double
you need 17 decimal places (meaning that for every number with 17 decimal places, there's a unique closest double
) which is why 17 places are showing up, but not all 17-decimal numbers map to different double
values (like in the examples in the other answers).
You can use like this view.getContext()
Example
holder.tv_room_name.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
Toast.makeText(v.getContext(), "", Toast.LENGTH_SHORT).show();
}
});
I had the same issue.
Only after I changed in php.ini variable
display_errors = Off
to
display_errors = On
Phpadmin started working.. crazy....
update json_source_tabcol as d
set isnullable = a.is_Nullable
from information_schema.columns as a
where a.table_name =d.table_name
and a.table_schema = d.table_schema
and a.column_name = d.column_name;
.remove()
works like .find()
:
MyModel.remove({search: criteria}, function() {
// removed.
});
I want to show you only the first part, that is read. Here's how simply you can read:
Swift 3:
let s = try String(contentsOfFile: Bundle.main.path(forResource: "myFile", ofType: "txt")!)
Swift 2:
let s = try! String(contentsOfFile: NSBundle.mainBundle().pathForResource("myFile", ofType: "txt")!)
I ran into this problem and inspired by @Jeremy Cook's answer, I bit the bullet to find out what the heck caused IIS 7 Integrated mode to not like my web.config. Here's my scenario:
I wanted to use attribute routing in a project that (unfortunately) had to use .NET 4 and hence could not use Web API 2.2 (which needs .NET 4.5). The well meaning NuGet package added this section under the <system.web>
section:
<system.web>
<httpHandlers>
<add verb="*" path="routes.axd" type="AttributeRouting.Web.Logging.LogRoutesHandler, AttributeRouting.Web" />
</httpHandlers>
</system.web>
[I say well meaning, because this part is required on older versions of IIS]
Removing this section got me past the HTTP 500.23!!
Summary: I second Jeremy's words that it is important to understand why things don't work rather than just "masking the symptom". Even if you have to mask the symptom, you know what you are doing (and why) :-)
info
is a pointer to a dictionary - you keep adding the same pointer to your list contact
.
Insert info = {}
into the loop and it should solve the problem:
...
content = []
for iframe in soup.find_all('iframe'):
info = {}
info['src'] = iframe.get('src')
info['height'] = iframe.get('height')
info['width'] = iframe.get('width')
...
For anyone coming here in 2018:
Generic types is a compile time abstraction. At runtime all maps will have the same type Map<Object, Object>
. So if you are sure that values are strings, you can cheat on java compiler:
Map<String, Object> m1 = new HashMap<String, Object>();
Map<String, String> m2 = (Map) m1;
Copying keys and values from one collection to another is redundant. But this approach is still not good, because it violates generics type safety. May be you should reconsider your code to avoid such things.
object[,] valueArray = (object[,])excelRange.get_Value(XlRangeValueDataType.xlRangeValueDefault);
//Get the column names
for (int k = 0; k < valueArray.GetLength(1); )
{
//add columns to the data table.
dt.Columns.Add((string)valueArray[1,++k]);
}
//Load data into data table
object[] singleDValue = new object[valueArray.GetLength(1)];
//value array first row contains column names. so loop starts from 1 instead of 0
for (int i = 1; i < valueArray.GetLength(0); i++)
{
Console.WriteLine(valueArray.GetLength(0) + ":" + valueArray.GetLength(1));
for (int k = 0; k < valueArray.GetLength(1); )
{
singleDValue[k] = valueArray[i+1, ++k];
}
dt.LoadDataRow(singleDValue, System.Data.LoadOption.PreserveChanges);
}
Interestingly virtually all answers revolve around XPath's function contains()
, neglecting the fact it is case sensitive - contrary to the OP's ask.
If you need case insensitivity, that is achievable in XPath 1.0 (the version contemporary browsers support), though it's not pretty - by using the translate()
function. It substitutes a source character to its desired form, by using a translation table.
Constructing a table of all upper case characters will effectively transform the node's text to its lower() form - allowing case-insensitive matching (here's just the prerogative):
[
contains(
translate(text(), 'ABCDEFGHIJKLMNOPQRSTUVWXYZ', 'abcdefghijklmnopqrstuvwxyz'),
'my button'
)
]
# will match a source text like "mY bUTTon"
The full Python call:
driver.find_elements_by_xpath("//*[contains(translate(text(), 'ABCDEFGHIJKLMNOPQRSTUVWXYZ?', 'abcdefghijklmnopqrstuvwxyz?'), 'my button')]")
Naturally this approach has its drawbacks - as given, it'll work only for Latin text; if you want to cover Unicode characters - you'll have to add them to the translation table. I've done that in the sample above - the last character is the Cyrillic symbol "?"
.
And if we lived in a world where browsers supported XPath 2.0 and up (, but not happening any time soon ??), we could having used the functions lower-case()
(yet, not fully locale-aware), and matches
(for regex searches, with the case-insensitive ('i'
) flag).
Thank you @mfitzp. In my case (CentOS) these libs are not available in the yum repo, but actually the solution was even easier. What I did:
sudo yum install python-devel
sudo yum install zlib-devel
sudo yum install libjpeg-turbo-devel
And now pillow's installation finishes successfully.
Just adding my case here as well:
I was using angular-ui-router with $state.go('new_state', {foo: "foo@bar"})
Once I added encodeURIComponent to the parameter, the problem was gone: $state.go('new_state', {foo: encodeURIComponent("foo@bar")})
.
What happened? The character "@" in the parameter value is not allowed in URLs. As a consequence, angular-ui-router created my controller twice: during first creation it passed the original "foo@bar", during second creation it would pass the encoded version "foo%40bar". Once I explicitly encoded the parameter as shown above, the problem went away.
This is the answer that worked for me. Was in the comments above, but deserves its rightful place as answer for ubuntu 12.04 ruby 1.8.7
sudo apt-get install ruby-dev
# if above doesnt work make sure you have build essential
sudo apt-get install build-essential
In my case, I pushed several big (> 100Mb) files and then proceeded to remove them. But they were still in the history of my repo, so I had to remove them from it as well.
What did the trick was:
bfg -b 100M # To remove all blobs from history, whose size is superior to 100Mb
git reflog expire --expire=now --all
git gc --prune=now --aggressive
Then, you need to push force on your branch:
git push origin <your_branch_name> --force
Note: bfg is a tool that can be installed on Linux and macOS using brew:
brew install bfg
A simple loop should be working:
for file in /var/*
do
#whatever you need with "$file"
done
For questions like this, it is always worth taking a look in the manual first. Date and time functions in the mySQL manual
CURDATE()
returns the DATE part of the current time. Manual on CURDATE()
NOW()
returns the date and time portions as a timestamp in various formats, depending on how it was requested. Manual on NOW().
For AFNetworking 3.0 and Swift. Maybe we can use like this:
let configutation = NSURLSessionConfiguration.defaultSessionConfiguration()
manager = AFHTTPSessionManager(sessionConfiguration: configutation)
let urlString = "url"
manager.POST(urlString, parameters: [params here], progress: nil, success: { (dataTask: NSURLSessionDataTask, response: AnyObject?) -> Void in
print(dataTask)
print(response)
}) { (dataTask: NSURLSessionDataTask?, error: NSError) -> Void in
print(error)
}
Hope this will help other find answer like me!
According to the Facebook documentation it's not possible to get all the fans of a page:
Although you can't get a list of all the fans of a Facebook Page, you can find out whether a specific person has liked a Page.
From about section of Reverse IP Domain Check tool on yougetsignal:
A reverse IP domain check takes a domain name or IP address pointing to a web server and searches for other sites known to be hosted on that same web server. Data is gathered from search engine results, which are not guaranteed to be complete.
we could open html file from linux/unix by using firefox .html
to stop a docker process and release the ports, first use ctrl-c to leave the exit the container then use docker ps to find the list of running containers. Then you can use the docker container stop to stop that process and release its ports. The container name you can find from the docker ps command which gives the name in the name column. Hope this solves your queries....
After doing a git fetch
, do a git log HEAD..origin/master
to show the log entries between your last common commit and the origin's master branch. To show the diffs, use either git log -p HEAD..origin/master
to show each patch, or git diff HEAD...origin/master
(three dots not two) to show a single diff.
There normally isn't any need to undo a fetch, because doing a fetch only updates the remote branches and none of your branches. If you're not prepared to do a pull and merge in all the remote commits, you can use git cherry-pick
to accept only the specific remote commits you want. Later, when you're ready to get everything, a git pull
will merge in the rest of the commits.
Update: I'm not entirely sure why you want to avoid the use of git fetch. All git fetch does is update your local copy of the remote branches. This local copy doesn't have anything to do with any of your branches, and it doesn't have anything to do with uncommitted local changes. I have heard of people who run git fetch in a cron job because it's so safe. (I wouldn't normally recommend doing that, though.)