For posterity, fish aliases are just functions:
$ alias foo="echo bar"
$ type foo
foo is a function with definition
function foo
echo bar $argv;
end
To remove it
$ unalias foo
/usr/bin/unalias: line 2: unalias: foo: not found
$ functions -e foo
$ type foo
type: Could not find “foo”
userListComboBox.DataSource = userCache.ToList();
userListComboBox.DisplayMember = "Key";
The server might require some kind of encryption and secure authentication.
see http://swiftmailer.org/docs/sending.html#encrypted-smtp
In MySQL, certain words like SELECT
, INSERT
, DELETE
etc. are reserved words. Since they have a special meaning, MySQL treats it as a syntax error whenever you use them as a table name, column name, or other kind of identifier - unless you surround the identifier with backticks.
As noted in the official docs, in section 10.2 Schema Object Names (emphasis added):
Certain objects within MySQL, including database, table, index, column, alias, view, stored procedure, partition, tablespace, and other object names are known as identifiers.
...
If an identifier contains special characters or is a reserved word, you must quote it whenever you refer to it.
...
The identifier quote character is the backtick ("
`
"):
A complete list of keywords and reserved words can be found in section 10.3 Keywords and Reserved Words. In that page, words followed by "(R)" are reserved words. Some reserved words are listed below, including many that tend to cause this issue.
You have two options.
The simplest solution is simply to avoid using reserved words as identifiers. You can probably find another reasonable name for your column that is not a reserved word.
Doing this has a couple of advantages:
It eliminates the possibility that you or another developer using your database will accidentally write a syntax error due to forgetting - or not knowing - that a particular identifier is a reserved word. There are many reserved words in MySQL and most developers are unlikely to know all of them. By not using these words in the first place, you avoid leaving traps for yourself or future developers.
The means of quoting identifiers differs between SQL dialects. While MySQL uses backticks for quoting identifiers by default, ANSI-compliant SQL (and indeed MySQL in ANSI SQL mode, as noted here) uses double quotes for quoting identifiers. As such, queries that quote identifiers with backticks are less easily portable to other SQL dialects.
Purely for the sake of reducing the risk of future mistakes, this is usually a wiser course of action than backtick-quoting the identifier.
If renaming the table or column isn't possible, wrap the offending identifier in backticks (`
) as described in the earlier quote from 10.2 Schema Object Names.
An example to demonstrate the usage (taken from 10.3 Keywords and Reserved Words):
mysql> CREATE TABLE interval (begin INT, end INT); ERROR 1064 (42000): You have an error in your SQL syntax. near 'interval (begin INT, end INT)'
mysql> CREATE TABLE `interval` (begin INT, end INT); Query OK, 0 rows affected (0.01 sec)
Similarly, the query from the question can be fixed by wrapping the keyword key
in backticks, as shown below:
INSERT INTO user_details (username, location, `key`)
VALUES ('Tim', 'Florida', 42)"; ^ ^
I usually use
$(this).css({
"textAlign":"center",
"secondCSSProperty":"value"
});
Hope that helps
So you know the key, value pair that you want to delete in advance? It's just much clearer to do this, then:
table.delete(key);
for (K key: table.keySet()) {
// do whatever you need to do with the rest of the keys
}
using java introspection you can do it, for example:
private void changeRootLoggerLevel(int level) {
if (logger instanceof org.slf4j.impl.Log4jLoggerAdapter) {
try {
Class loggerIntrospected = logger.getClass();
Field fields[] = loggerIntrospected.getDeclaredFields();
for (int i = 0; i < fields.length; i++) {
String fieldName = fields[i].getName();
if (fieldName.equals("logger")) {
fields[i].setAccessible(true);
org.apache.log4j.Logger loggerImpl = (org.apache.log4j.Logger) fields[i]
.get(logger);
if (level == DIAGNOSTIC_LEVEL) {
loggerImpl.setLevel(Level.DEBUG);
} else {
loggerImpl.setLevel(org.apache.log4j.Logger.getRootLogger().getLevel());
}
// fields[i].setAccessible(false);
}
}
} catch (Exception e) {
org.apache.log4j.Logger.getLogger(LoggerSLF4JImpl.class).error("An error was thrown while changing the Logger level", e);
}
}
}
You can remove the warning by adding a '@' before the mysql_connect.
@mysql_connect('localhost','root','');
but as the warning is telling you, use mysqli or PDO since the mysql extension will be removed in the future.
Yes, you can store any object (I assume you are using ASP.NET with default settings, which is in-process session state):
Session["test"] = myList;
You should cast it back to the original type for use:
var list = (List<int>)Session["test"];
// list.Add(something);
As Richard points out, you should take extra care if you are using other session state modes (e.g. SQL Server) that require objects to be serializable.
I tried what @willll said, and it worked. I didint find exactly the .exe named after my project, but I did kill some weird looking tasks (after checking on the internet they were not critical), and it worked.
Try this:
String[] trimmedArray = new String[array.length];
for (int i = 0; i < array.length; i++)
trimmedArray[i] = array[i].trim();
Now trimmedArray
contains the same strings as array
, but without leading and trailing whitespace. Alternatively, you could write this for modifying the strings in-place in the same array:
for (int i = 0; i < array.length; i++)
array[i] = array[i].trim();
In jQuery, you design a page, and then you make it dynamic. This is because jQuery was designed for augmentation and has grown incredibly from that simple premise.
But in AngularJS, you must start from the ground up with your architecture in mind. Instead of starting by thinking "I have this piece of the DOM and I want to make it do X", you have to start with what you want to accomplish, then go about designing your application, and then finally go about designing your view.
Similarly, don't start with the idea that jQuery does X, Y, and Z, so I'll just add AngularJS on top of that for models and controllers. This is really tempting when you're just starting out, which is why I always recommend that new AngularJS developers don't use jQuery at all, at least until they get used to doing things the "Angular Way".
I've seen many developers here and on the mailing list create these elaborate solutions with jQuery plugins of 150 or 200 lines of code that they then glue into AngularJS with a collection of callbacks and $apply
s that are confusing and convoluted; but they eventually get it working! The problem is that in most cases that jQuery plugin could be rewritten in AngularJS in a fraction of the code, where suddenly everything becomes comprehensible and straightforward.
The bottom line is this: when solutioning, first "think in AngularJS"; if you can't think of a solution, ask the community; if after all of that there is no easy solution, then feel free to reach for the jQuery. But don't let jQuery become a crutch or you'll never master AngularJS.
First know that single-page applications are applications. They're not webpages. So we need to think like a server-side developer in addition to thinking like a client-side developer. We have to think about how to divide our application into individual, extensible, testable components.
So then how do you do that? How do you "think in AngularJS"? Here are some general principles, contrasted with jQuery.
In jQuery, we programmatically change the view. We could have a dropdown menu defined as a ul
like so:
<ul class="main-menu">
<li class="active">
<a href="#/home">Home</a>
</li>
<li>
<a href="#/menu1">Menu 1</a>
<ul>
<li><a href="#/sm1">Submenu 1</a></li>
<li><a href="#/sm2">Submenu 2</a></li>
<li><a href="#/sm3">Submenu 3</a></li>
</ul>
</li>
<li>
<a href="#/home">Menu 2</a>
</li>
</ul>
In jQuery, in our application logic, we would activate it with something like:
$('.main-menu').dropdownMenu();
When we just look at the view, it's not immediately obvious that there is any functionality here. For small applications, that's fine. But for non-trivial applications, things quickly get confusing and hard to maintain.
In AngularJS, though, the view is the official record of view-based functionality. Our ul
declaration would look like this instead:
<ul class="main-menu" dropdown-menu>
...
</ul>
These two do the same thing, but in the AngularJS version anyone looking at the template knows what's supposed to happen. Whenever a new member of the development team comes on board, she can look at this and then know that there is a directive called dropdownMenu
operating on it; she doesn't need to intuit the right answer or sift through any code. The view told us what was supposed to happen. Much cleaner.
Developers new to AngularJS often ask a question like: how do I find all links of a specific kind and add a directive onto them. The developer is always flabbergasted when we reply: you don't. But the reason you don't do that is that this is like half-jQuery, half-AngularJS, and no good. The problem here is that the developer is trying to "do jQuery" in the context of AngularJS. That's never going to work well. The view is the official record. Outside of a directive (more on this below), you never, ever, never change the DOM. And directives are applied in the view, so intent is clear.
Remember: don't design, and then mark up. You must architect, and then design.
This is by far one of the most awesome features of AngularJS and cuts out a lot of the need to do the kinds of DOM manipulations I mentioned in the previous section. AngularJS will automatically update your view so you don't have to! In jQuery, we respond to events and then update content. Something like:
$.ajax({
url: '/myEndpoint.json',
success: function ( data, status ) {
$('ul#log').append('<li>Data Received!</li>');
}
});
For a view that looks like this:
<ul class="messages" id="log">
</ul>
Apart from mixing concerns, we also have the same problems of signifying intent that I mentioned before. But more importantly, we had to manually reference and update a DOM node. And if we want to delete a log entry, we have to code against the DOM for that too. How do we test the logic apart from the DOM? And what if we want to change the presentation?
This a little messy and a trifle frail. But in AngularJS, we can do this:
$http( '/myEndpoint.json' ).then( function ( response ) {
$scope.log.push( { msg: 'Data Received!' } );
});
And our view can look like this:
<ul class="messages">
<li ng-repeat="entry in log">{{ entry.msg }}</li>
</ul>
But for that matter, our view could look like this:
<div class="messages">
<div class="alert" ng-repeat="entry in log">
{{ entry.msg }}
</div>
</div>
And now instead of using an unordered list, we're using Bootstrap alert boxes. And we never had to change the controller code! But more importantly, no matter where or how the log gets updated, the view will change too. Automatically. Neat!
Though I didn't show it here, the data binding is two-way. So those log messages could also be editable in the view just by doing this: <input ng-model="entry.msg" />
. And there was much rejoicing.
In jQuery, the DOM is kind of like the model. But in AngularJS, we have a separate model layer that we can manage in any way we want, completely independently from the view. This helps for the above data binding, maintains separation of concerns, and introduces far greater testability. Other answers mentioned this point, so I'll just leave it at that.
And all of the above tie into this over-arching theme: keep your concerns separate. Your view acts as the official record of what is supposed to happen (for the most part); your model represents your data; you have a service layer to perform reusable tasks; you do DOM manipulation and augment your view with directives; and you glue it all together with controllers. This was also mentioned in other answers, and the only thing I would add pertains to testability, which I discuss in another section below.
To help us out with separation of concerns is dependency injection (DI). If you come from a server-side language (from Java to PHP) you're probably familiar with this concept already, but if you're a client-side guy coming from jQuery, this concept can seem anything from silly to superfluous to hipster. But it's not. :-)
From a broad perspective, DI means that you can declare components very freely and then from any other component, just ask for an instance of it and it will be granted. You don't have to know about loading order, or file locations, or anything like that. The power may not immediately be visible, but I'll provide just one (common) example: testing.
Let's say in our application, we require a service that implements server-side storage through a REST API and, depending on application state, local storage as well. When running tests on our controllers, we don't want to have to communicate with the server - we're testing the controller, after all. We can just add a mock service of the same name as our original component, and the injector will ensure that our controller gets the fake one automatically - our controller doesn't and needn't know the difference.
Speaking of testing...
This is really part of section 3 on architecture, but it's so important that I'm putting it as its own top-level section.
Out of all of the many jQuery plugins you've seen, used, or written, how many of them had an accompanying test suite? Not very many because jQuery isn't very amenable to that. But AngularJS is.
In jQuery, the only way to test is often to create the component independently with a sample/demo page against which our tests can perform DOM manipulation. So then we have to develop a component separately and then integrate it into our application. How inconvenient! So much of the time, when developing with jQuery, we opt for iterative instead of test-driven development. And who could blame us?
But because we have separation of concerns, we can do test-driven development iteratively in AngularJS! For example, let's say we want a super-simple directive to indicate in our menu what our current route is. We can declare what we want in the view of our application:
<a href="/hello" when-active>Hello</a>
Okay, now we can write a test for the non-existent when-active
directive:
it( 'should add "active" when the route changes', inject(function() {
var elm = $compile( '<a href="/hello" when-active>Hello</a>' )( $scope );
$location.path('/not-matching');
expect( elm.hasClass('active') ).toBeFalsey();
$location.path( '/hello' );
expect( elm.hasClass('active') ).toBeTruthy();
}));
And when we run our test, we can confirm that it fails. Only now should we create our directive:
.directive( 'whenActive', function ( $location ) {
return {
scope: true,
link: function ( scope, element, attrs ) {
scope.$on( '$routeChangeSuccess', function () {
if ( $location.path() == element.attr( 'href' ) ) {
element.addClass( 'active' );
}
else {
element.removeClass( 'active' );
}
});
}
};
});
Our test now passes and our menu performs as requested. Our development is both iterative and test-driven. Wicked-cool.
You'll often hear "only do DOM manipulation in a directive". This is a necessity. Treat it with due deference!
But let's dive a little deeper...
Some directives just decorate what's already in the view (think ngClass
) and therefore sometimes do DOM manipulation straight away and then are basically done. But if a directive is like a "widget" and has a template, it should also respect separation of concerns. That is, the template too should remain largely independent from its implementation in the link and controller functions.
AngularJS comes with an entire set of tools to make this very easy; with ngClass
we can dynamically update the class; ngModel
allows two-way data binding; ngShow
and ngHide
programmatically show or hide an element; and many more - including the ones we write ourselves. In other words, we can do all kinds of awesomeness without DOM manipulation. The less DOM manipulation, the easier directives are to test, the easier they are to style, the easier they are to change in the future, and the more re-usable and distributable they are.
I see lots of developers new to AngularJS using directives as the place to throw a bunch of jQuery. In other words, they think "since I can't do DOM manipulation in the controller, I'll take that code put it in a directive". While that certainly is much better, it's often still wrong.
Think of the logger we programmed in section 3. Even if we put that in a directive, we still want to do it the "Angular Way". It still doesn't take any DOM manipulation! There are lots of times when DOM manipulation is necessary, but it's a lot rarer than you think! Before doing DOM manipulation anywhere in your application, ask yourself if you really need to. There might be a better way.
Here's a quick example that shows the pattern I see most frequently. We want a toggleable button. (Note: this example is a little contrived and a skosh verbose to represent more complicated cases that are solved in exactly the same way.)
.directive( 'myDirective', function () {
return {
template: '<a class="btn">Toggle me!</a>',
link: function ( scope, element, attrs ) {
var on = false;
$(element).click( function () {
on = !on;
$(element).toggleClass('active', on);
});
}
};
});
There are a few things wrong with this:
angular.element
and our component will still work when dropped into a project that doesn't have jQuery.angular.element
) will always use jQuery if it was loaded! So we needn't use the $
- we can just use angular.element
.$
- the element
that is passed to the link
function would already be a jQuery element! This directive can be rewritten (even for very complicated cases!) much more simply like so:
.directive( 'myDirective', function () {
return {
scope: true,
template: '<a class="btn" ng-class="{active: on}" ng-click="toggle()">Toggle me!</a>',
link: function ( scope, element, attrs ) {
scope.on = false;
scope.toggle = function () {
scope.on = !scope.on;
};
}
};
});
Again, the template stuff is in the template, so you (or your users) can easily swap it out for one that meets any style necessary, and the logic never had to be touched. Reusability - boom!
And there are still all those other benefits, like testing - it's easy! No matter what's in the template, the directive's internal API is never touched, so refactoring is easy. You can change the template as much as you want without touching the directive. And no matter what you change, your tests still pass.
w00t!
So if directives aren't just collections of jQuery-like functions, what are they? Directives are actually extensions of HTML. If HTML doesn't do something you need it to do, you write a directive to do it for you, and then use it just as if it was part of HTML.
Put another way, if AngularJS doesn't do something out of the box, think how the team would accomplish it to fit right in with ngClick
, ngClass
, et al.
Don't even use jQuery. Don't even include it. It will hold you back. And when you come to a problem that you think you know how to solve in jQuery already, before you reach for the $
, try to think about how to do it within the confines the AngularJS. If you don't know, ask! 19 times out of 20, the best way to do it doesn't need jQuery and to try to solve it with jQuery results in more work for you.
This seemed to work best for me:
public static Date fromISO8601_( String string ) {
try {
return new SimpleDateFormat ( "yyyy-MM-dd'T'HH:mm:ssXXX").parse ( string );
} catch ( ParseException e ) {
return Exceptions.handle (Date.class, "Not a valid ISO8601", e);
}
}
I needed to convert to/fro JavaScript date strings to Java. I found the above works with the recommendation. There were some examples using SimpleDateFormat that were close but they did not seem to be the subset as recommended by:
http://www.w3.org/TR/NOTE-datetime
and supported by PLIST and JavaScript Strings and such which is what I needed.
This seems to be the most common form of ISO8601 string out there, and a good subset.
The examples they give are:
1994-11-05T08:15:30-05:00 corresponds
November 5, 1994, 8:15:30 am, US Eastern Standard Time.
1994-11-05T13:15:30Z corresponds to the same instant.
I also have a fast version:
final static int SHORT_ISO_8601_TIME_LENGTH = "1994-11-05T08:15:30Z".length ();
// 01234567890123456789012
final static int LONG_ISO_8601_TIME_LENGTH = "1994-11-05T08:15:30-05:00".length ();
public static Date fromISO8601( String string ) {
if (isISO8601 ( string )) {
char [] charArray = Reflection.toCharArray ( string );//uses unsafe or string.toCharArray if unsafe is not available
int year = CharScanner.parseIntFromTo ( charArray, 0, 4 );
int month = CharScanner.parseIntFromTo ( charArray, 5, 7 );
int day = CharScanner.parseIntFromTo ( charArray, 8, 10 );
int hour = CharScanner.parseIntFromTo ( charArray, 11, 13 );
int minute = CharScanner.parseIntFromTo ( charArray, 14, 16 );
int second = CharScanner.parseIntFromTo ( charArray, 17, 19 );
TimeZone tz ;
if (charArray[19] == 'Z') {
tz = TimeZone.getTimeZone ( "GMT" );
} else {
StringBuilder builder = new StringBuilder ( 9 );
builder.append ( "GMT" );
builder.append( charArray, 19, LONG_ISO_8601_TIME_LENGTH - 19);
String tzStr = builder.toString ();
tz = TimeZone.getTimeZone ( tzStr ) ;
}
return toDate ( tz, year, month, day, hour, minute, second );
} else {
return null;
}
}
...
public static int parseIntFromTo ( char[] digitChars, int offset, int to ) {
int num = digitChars[ offset ] - '0';
if ( ++offset < to ) {
num = ( num * 10 ) + ( digitChars[ offset ] - '0' );
if ( ++offset < to ) {
num = ( num * 10 ) + ( digitChars[ offset ] - '0' );
if ( ++offset < to ) {
num = ( num * 10 ) + ( digitChars[ offset ] - '0' );
if ( ++offset < to ) {
num = ( num * 10 ) + ( digitChars[ offset ] - '0' );
if ( ++offset < to ) {
num = ( num * 10 ) + ( digitChars[ offset ] - '0' );
if ( ++offset < to ) {
num = ( num * 10 ) + ( digitChars[ offset ] - '0' );
if ( ++offset < to ) {
num = ( num * 10 ) + ( digitChars[ offset ] - '0' );
if ( ++offset < to ) {
num = ( num * 10 ) + ( digitChars[ offset ] - '0' );
}
}
}
}
}
}
}
}
return num;
}
public static boolean isISO8601( String string ) {
boolean valid = true;
if (string.length () == SHORT_ISO_8601_TIME_LENGTH) {
valid &= (string.charAt ( 19 ) == 'Z');
} else if (string.length () == LONG_ISO_8601_TIME_LENGTH) {
valid &= (string.charAt ( 19 ) == '-' || string.charAt ( 19 ) == '+');
valid &= (string.charAt ( 22 ) == ':');
} else {
return false;
}
// 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4
// "1 9 9 4 - 1 1 - 0 5 T 0 8 : 1 5 : 3 0 - 0 5 : 0 0
valid &= (string.charAt ( 4 ) == '-') &&
(string.charAt ( 7 ) == '-') &&
(string.charAt ( 10 ) == 'T') &&
(string.charAt ( 13 ) == ':') &&
(string.charAt ( 16 ) == ':');
return valid;
}
I have not benchmarked it, but I am guess it will be pretty fast. It seems to work. :)
@Test
public void testIsoShortDate() {
String test = "1994-11-05T08:15:30Z";
Date date = Dates.fromISO8601 ( test );
Date date2 = Dates.fromISO8601_ ( test );
assertEquals(date2.toString (), date.toString ());
puts (date);
}
@Test
public void testIsoLongDate() {
String test = "1994-11-05T08:11:22-05:00";
Date date = Dates.fromISO8601 ( test );
Date date2 = Dates.fromISO8601_ ( test );
assertEquals(date2.toString (), date.toString ());
puts (date);
}
bash-4.2$ printf '%x\n' 4294967295
ffffffff
bash-4.2$ printf -v hex '%x' 4294967295
bash-4.2$ echo $hex
ffffffff
The best way is to use IN
statement :
DELETE from tablename WHERE id IN (1,2,3,...,254);
You can also use BETWEEN
if you have consecutive IDs :
DELETE from tablename WHERE id BETWEEN 1 AND 254;
You can of course limit for some IDs using other WHERE clause :
DELETE from tablename WHERE id BETWEEN 1 AND 254 AND id<>10;
In C++-11 you can do:
std::vector<int> v = {0, 1, 2, 3, 4, 5};
for (auto i : v)
{
// access by value, the type of i is int
std::cout << i << ' ';
}
std::cout << '\n';
See here for variations: https://en.cppreference.com/w/cpp/language/range-for
Result Set
are actually contains multiple rows of data, and use a cursor to point out current position. So in your case, rs4.getString(1)
only get you the data in first column of first row. In order to change to next row, you need to call next()
a quick example
while (rs.next()) {
String sid = rs.getString(1);
String lid = rs.getString(2);
// Do whatever you want to do with these 2 values
}
there are many useful method in ResultSet
, you should take a look :)
If upload_file
is meant to be the file, use:
files = {'upload_file': open('file.txt','rb')}
values = {'DB': 'photcat', 'OUT': 'csv', 'SHORT': 'short'}
r = requests.post(url, files=files, data=values)
and requests
will send a multi-part form POST body with the upload_file
field set to the contents of the file.txt
file.
The filename will be included in the mime header for the specific field:
>>> import requests
>>> open('file.txt', 'wb') # create an empty demo file
<_io.BufferedWriter name='file.txt'>
>>> files = {'upload_file': open('file.txt', 'rb')}
>>> print(requests.Request('POST', 'http://example.com', files=files).prepare().body.decode('ascii'))
--c226ce13d09842658ffbd31e0563c6bd
Content-Disposition: form-data; name="upload_file"; filename="file.txt"
--c226ce13d09842658ffbd31e0563c6bd--
Note the filename="file.txt"
parameter.
You can use a tuple for the files
mapping value, with between 2 and 4 elements, if you need more control. The first element is the filename, followed by the contents, and an optional content-type header value and an optional mapping of additional headers:
files = {'upload_file': ('foobar.txt', open('file.txt','rb'), 'text/x-spam')}
This sets an alternative filename and content type, leaving out the optional headers.
If you are meaning the whole POST body to be taken from a file (with no other fields specified), then don't use the files
parameter, just post the file directly as data
. You then may want to set a Content-Type
header too, as none will be set otherwise. See Python requests - POST data from a file.
#include <windows.h>
double PCFreq = 0.0;
__int64 CounterStart = 0;
void StartCounter()
{
LARGE_INTEGER li;
if(!QueryPerformanceFrequency(&li))
cout << "QueryPerformanceFrequency failed!\n";
PCFreq = double(li.QuadPart)/1000.0;
QueryPerformanceCounter(&li);
CounterStart = li.QuadPart;
}
double GetCounter()
{
LARGE_INTEGER li;
QueryPerformanceCounter(&li);
return double(li.QuadPart-CounterStart)/PCFreq;
}
int main()
{
StartCounter();
Sleep(1000);
cout << GetCounter() <<"\n";
return 0;
}
This program should output a number close to 1000 (windows sleep isn't that accurate, but it should be like 999).
The StartCounter()
function records the number of ticks the performance counter has in the CounterStart
variable. The GetCounter()
function returns the number of milliseconds since StartCounter()
was last called as a double, so if GetCounter()
returns 0.001 then it has been about 1 microsecond since StartCounter()
was called.
If you want to have the timer use seconds instead then change
PCFreq = double(li.QuadPart)/1000.0;
to
PCFreq = double(li.QuadPart);
or if you want microseconds then use
PCFreq = double(li.QuadPart)/1000000.0;
But really it's about convenience since it returns a double.
Beware! While it's true that "sort -u" and "sort|uniq" are equivalent, any additional options to sort can break the equivalence. Here's an example from the coreutils manual:
For example, 'sort -n -u' inspects only the value of the initial numeric string when checking for uniqueness, whereas 'sort -n | uniq' inspects the entire line.
Similarly, if you sort on key fields, the uniqueness test used by sort won't necessarily look at the entire line anymore. After being bitten by that bug in the past, these days I tend to use "sort|uniq" when writing Bash scripts. I'd rather have higher I/O overhead than run the risk that someone else in the shop won't know about that particular pitfall when they modify my code to add additional sort parameters.
The above answers helped me to solve my issue specially the first answer. But adding to that point after the checking the version of python and we need it to be 64 bit version.
Based on the operating system you have we can use the following command to install tensorflow using pip command.
The following link has google api links which can be added at the end of the following command to install tensorflow in your respective machine.
Root command: python -m pip install --upgrade (link) link : respective OS link present in this link
You just can't return the value directly because it is an async call. An async call means it is running in the background (actually scheduled for later execution) while your code continues to execute.
You also can't have such code in the class directly. It needs to be moved into a method or the constructor.
What you can do is not to subscribe()
directly but use an operator like map()
export class DataComponent{
someMethod() {
return this.http.get(path).map(res => {
return res.json();
});
}
}
In addition, you can combine multiple .map
with the same Observables as sometimes this improves code clarity and keeps things separate. Example:
validateResponse = (response) => validate(response);
parseJson = (json) => JSON.parse(json);
fetchUnits() {
return this.http.get(requestUrl).map(this.validateResponse).map(this.parseJson);
}
This way an observable will be return the caller can subscribe to
export class DataComponent{
someMethod() {
return this.http.get(path).map(res => {
return res.json();
});
}
otherMethod() {
this.someMethod().subscribe(data => this.data = data);
}
}
The caller can also be in another class. Here it's just for brevity.
data => this.data = data
and
res => return res.json()
are arrow functions. They are similar to normal functions. These functions are passed to subscribe(...)
or map(...)
to be called from the observable when data arrives from the response.
This is why data can't be returned directly, because when someMethod()
is completed, the data wasn't received yet.
Check out this post
According to it
No value was specified for the AUTO_INCREMENT column, so MySQL assigned sequence numbers automatically. You can also explicitly assign NULL or 0 to the column to generate sequence numbers.
Cong Ma does a good job of explaining what __getitem__
is used for - but I want to give you an example which might be useful.
Imagine a class which models a building. Within the data for the building it includes a number of attributes, including descriptions of the companies that occupy each floor :
Without using __getitem__
we would have a class like this :
class Building(object):
def __init__(self, floors):
self._floors = [None]*floors
def occupy(self, floor_number, data):
self._floors[floor_number] = data
def get_floor_data(self, floor_number):
return self._floors[floor_number]
building1 = Building(4) # Construct a building with 4 floors
building1.occupy(0, 'Reception')
building1.occupy(1, 'ABC Corp')
building1.occupy(2, 'DEF Inc')
print( building1.get_floor_data(2) )
We could however use __getitem__
(and its counterpart __setitem__
) to make the usage of the Building class 'nicer'.
class Building(object):
def __init__(self, floors):
self._floors = [None]*floors
def __setitem__(self, floor_number, data):
self._floors[floor_number] = data
def __getitem__(self, floor_number):
return self._floors[floor_number]
building1 = Building(4) # Construct a building with 4 floors
building1[0] = 'Reception'
building1[1] = 'ABC Corp'
building1[2] = 'DEF Inc'
print( building1[2] )
Whether you use __setitem__
like this really depends on how you plan to abstract your data - in this case we have decided to treat a building as a container of floors (and you could also implement an iterator for the Building, and maybe even the ability to slice - i.e. get more than one floor's data at a time - it depends on what you need.
Use format string
intNum = 123
print "0x%x"%(intNum)
or hex
function.
intNum = 123
print hex(intNum)
A thread is something like some branch. Multi-branched means when there are at least two branches. If the branches are reduced, then the minimum remains one. This one is although like the branches removed, but in general we do not consider it branch.
Similarly when there are at least two threads we call it multi-threaded program. If the threads are reduced, the minimum remains one. Hello program is a single threaded program, but no one needs to know multi-threading to write or run it.
In simple words when a program is not said to be having threads, it means that the program is not a multi-threaded program, more over in true sense it is a single threaded program, in which YOU CAN put your code as if it is multi-threaded.
Below a useless code is given, but it will suffice to do away with your some confusions about Runnable
. It will print "Hello World".
class NamedRunnable implements Runnable {
public void run() { // The run method prints a message to standard output.
System.out.println("Hello World");
}
public static void main(String[]arg){
NamedRunnable namedRunnable = new NamedRunnable( );
namedRunnable.run();
}
}
You could override your object's ToString() method:
public override string ToString ()
{
return string.Format ("{0},{1},{2}", this.number, this.id, this.whatever);
}
cd /etc
sudo vi bashrc
Add the following like:
alias ll="ls -lrt"
Finally restart Terminal.
The reason is the browser can not understand it and try to somehow translate it to what it can understand and in this case into a hexadecimal value!...
chucknorris
starts with c
which is recognised character in hexadecimal, also it's converting all unrecognised characters into 0
!
So chucknorris
in hexadecimal format becomes: c00c00000000
, all other characters become 0
and c
remains where they are...
Now they get divided by 3 for RGB
(red, green, blue)... R: c00c, G: 0000, B:0000
...
But we know valid hexadecimal for RGB is just 2 characters, means R: c0, G: 00, B:00
So the real result is:
bgcolor="#c00000";
I also added the steps in the image as a quick reference for you:
You are not adding the object to the session, instead you are adding it to the request.
What you need is:
HttpSession session = request.getSession();
session.setAttribute("MySessionVariable", param);
In Servlets you have 4 scopes where you can store data.
Make sure you understand these. For more look here
Basic Authentication use base 64 Encoding for generating cryptographic string which contains the information of username and password.
Digest Access Authentication uses the hashing methodologies to generate the cryptographic result
If you are using python 3 or above,
>>> list(bytes(b'test'))
[116, 101, 115, 116]
I feel like adding more details to the existing answer:
# PHP error handling for development servers
php_flag display_startup_errors on
php_flag display_errors on
php_flag html_errors on
php_flag log_errors on
php_flag ignore_repeated_errors off
php_flag ignore_repeated_source off
php_flag report_memleaks on
php_flag track_errors on
php_value docref_root 0
php_value docref_ext 0
php_value error_log /full/path/to/file/php_errors.log
php_value error_reporting -1
php_value log_errors_max_len 0
Give 777 or 755 permission to the log file and then add the code
<Files php_errors.log>
Order allow,deny
Deny from all
Satisfy All
</Files>
at the end of .htaccess. This will protect your log file.
These options are suited for a development server. For a production server you should not display any error to the end user. So change the display flags to off.
For more information, follow this link: Advanced PHP Error Handling via htaccess
Booleans in python are subclass of integer. Constructor of booleans is bool
. bool class inherits from int class.
issubclass(bool,int) // will return True
isinstance(True,bool) , isinstance(False,bool) //they both True
True
and False
are singleton objects. they will retain same memory address throughout the lifetime of your app. When you type True
, python memory manager will check its address and will pull the value '1'. for False
its value is '0'.
Comparisons of any boolean expression to True
or False
can be performed using either is
(identity) or ==
(equality) operator.
int(True) == 1
int(False) == 0
But note that True
and '1' are not the same objects. You can check:
id(True) == id(1) // will return False
you can also easily see that
True > False // returns true cause 1>0
any integer operation can work with the booleans.
True + True + True =3
All objects in python have an associated truth value. Every object has True
value except:
None
False
0 in any numeric type (0,0.0,0+0j etc)
empty sequences (list, tuple, string)
empty mapping types (dictionary, set, etc)
custom classes that implement __bool__
or __len__
method that returns False
or 0
.
every class in python has truth values defined by a special instance method:
__bool__(self) OR
__len__
When you call bool(x)
python will actually execute
x.__bool__()
if instance x
does not have this method, then it will execute
x.__len__()
if this does not exist, by default value is True
.
For Example for int
class we can define bool as below:
def __bool__(self):
return self != 0
for bool(100), 100 !=0
will return True
. So
bool(100) == True
you can easily check that bool(0)
will be False
. with this for instances of int class only 0 will return False.
another example= bool([1,2,3])
[1,2,3]
has no __bool__()
method defined but it has __len__()
and since its length is greater than 0, it will return True
. Now you can see why empty lists return False
.
There's a plugin called Job Import Plugin that may be what you are looking for. I have used it. It does have issues with importing projects from a server that doesn't allow anonymous access.
For Completeness: If you have command line access to both, you can do the procedure already mentioned by Khez for Moving, Copying and Renaming Jenkins Jobs.
Use ToString("X4")
.
The 4 means that the string will be 4 digits long.
Reference: The Hexadecimal ("X") Format Specifier on MSDN.
You failed to specify the exact columns (data) to test for normality. Use this instead
shapiro.test(heisenberg$HWWIchg)
the default gradle version 3.3 may have some bugs, I switched to gradle 3.5 and everything got ok
From Apple documentation:
Guard Statement
A guard statement is used to transfer program control out of a scope if one or more conditions aren’t met.
Synatx:
guard condition else {
statements
}
Advantage:
1. By using guard
statement we can get rid of deeply nested conditionals whose sole purpose is validating a set of requirements.
2. It was designed specifically for exiting a method or function early.
if you use if let below is the code how it looks.
let task = URLSession.shared.dataTask(with: request) { (data, response, error) in
if error == nil {
if let statusCode = (response as? HTTPURLResponse)?.statusCode, statusCode >= 200 && statusCode <= 299 {
if let data = data {
//Process Data Here.
print("Data: \(data)")
} else {
print("No data was returned by the request!")
}
} else {
print("Your request returned a status code other than 2XX!")
}
} else {
print("Error Info: \(error.debugDescription)")
}
}
task.resume()
Using guard you can transfer control out of a scope if one or more conditions aren't met.
let task = URLSession.shared.dataTask(with: request) { (data, response, error) in
/* GUARD: was there an error? */
guard (error == nil) else {
print("There was an error with your request: \(error)")
return
}
/* GUARD: Did we get a successful 2XX response? */
guard let statusCode = (response as? HTTPURLResponse)?.statusCode, statusCode >= 200 && statusCode <= 299 else {
print("Your request returned a status code other than 2XX!")
return
}
/* GUARD: was there any data returned? */
guard let data = data else {
print("No data was returned by the request!")
return
}
//Process Data Here.
print("Data: \(data)")
}
task.resume()
Reference:
1. Swift 2: Exit Early With guard 2. Udacity 3. Guard Statement
super()
lets you avoid referring to the base class explicitly, which can be nice. But the main advantage comes with multiple inheritance, where all sorts of fun stuff can happen. See the standard docs on super if you haven't already.
Note that the syntax changed in Python 3.0: you can just say super().__init__()
instead of super(ChildB, self).__init__()
which IMO is quite a bit nicer. The standard docs also refer to a guide to using super()
which is quite explanatory.
Easy as this, that worked for my project
composer install
php artisan serve
It's because nl2br()
doesn't remove new lines at all.
Returns string with
<br />
or<br>
inserted before all newlines (\r\n
,\n\r
,\n
and\r
).
Use str_replace
instead:
$string = str_replace(array("\r\n", "\r", "\n"), "<br />", $string);
it works for me, just change: Provider=Microsoft.Jet.OLEDB.4.0 (VS2013)
OleDbConnection connection = new OleDbConnection(
"Provider=Microsoft.Jet.OLEDB.4.0;Data Source=Z:\\GENERAL\\OFMPTP_PD_SG.MDB");
DataSet DS = new DataSet();
connection.Open();
string query =
@"SELECT * from MONTHLYPROD";
OleDbDataAdapter DBAdapter = new OleDbDataAdapter();
DBAdapter.SelectCommand = new OleDbCommand(query, connection);
DBAdapter.Fill(DS);
Luis Montoya
SASS stands for Syntactically Awesome StyleSheets. It is an extension of CSS that adds power and elegance to the basic language. SASS is newly named as SCSS with some chages, but the old one SASS is also there. Before you use SCSS or SASS please see the below difference.
An example of some SCSS and SASS syntax:
SCSS
$font-stack: Helvetica, sans-serif;
$primary-color: #333;
body {
font: 100% $font-stack;
color: $primary-color;
}
//Mixins
@mixin transform($property) {
-webkit-transform: $property;
-ms-transform: $property;
transform: $property;
}
.box { @include transform(rotate(30deg)); }
SASS
$font-stack: Helvetica, sans-serif
$primary-color: #333
body
font: 100% $font-stack
color: $primary-color
//Mixins
=transform($property)
-webkit-transform: $property
-ms-transform: $property
transform: $property
.box
+transform(rotate(30deg))
Output CSS after Compilation(Same for Both)
body {
font: 100% Helvetica, sans-serif;
color: #333;
}
//Mixins
.box {
-webkit-transform: rotate(30deg);
-ms-transform: rotate(30deg);
transform: rotate(30deg);
}
For more guide you can see the official website.
A plain list of the current directory, it'd be:
ls -1d */
If you want it sorted and clean:
ls -1d */ | cut -c 1- | rev | cut -c 2- | rev | sort
Remember: capitalized characters have different behavior in the sort
You can activate JVM's debugging capability when starting up the java
command with a special option:
java -agentlib:jdwp=transport=dt_socket,address=8000,server=y,suspend=y -jar path/to/some/war/or/jar.jar
Starting up jar.jar
like that on the command line will:
server=y
) listening on port 8000 (address=8000
)Listening for transport dt_socket at address: 8000
to stdout
andsuspend=y
) until some debugger connects. The debugger acts as the client in this scenario.Common options for selecting a debugger are:
jar.jar
should begin executing.jdb -connect com.sun.jdi.SocketAttach:port=8000
string foo = yourDateTime.ToUniversalTime()
.ToString("yyyy'-'MM'-'dd'T'HH':'mm':'ss'.'fff'Z'");
You can use a very nice tool called Stetho
by adding this to build.gradle
file:
compile 'com.facebook.stetho:stetho:1.4.1'
And initialized it inside your Application
or Activity
onCreate()
method:
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
Stetho.initializeWithDefaults(this);
setContentView(R.layout.activity_main);
}
Then you can view the db records in chrome in the address:
chrome://inspect/#devices
For more details you can read my post: How to view easily your db records
In my situation, the controller method was not made as async and the method called inside the controller method was async.
So I guess its important to use async/await all the way to top level to avoid issues like these.
A boolean in SQL is a bit field. This means either 1 or 0. The correct syntax is:
select * from users where active = 1 /* All Active Users */
or
select * from users where active = 0 /* All Inactive Users */
DateTime.Now.DayOfWeek
quite easy to guess actually.
for any given date:
DateTime dt = //....
DayOfWeek dow = dt.DayOfWeek; //enum
string str = dow.ToString(); //string
There is an easier way to do this. Let's assume you're on the master
branch
Create a new orphaned branch which will remove all commit history:
$ git checkout --orphan new_branch
Add your initial commit message:
$ git commit -a
Get rid of the old unmerged master branch:
$ git branch -D master
Rename your current branch new_branch
to master
:
$ git branch -m master
Use the script console (Manage Jenkins > Script Console) and something like this script to bulk delete a job's build history https://github.com/jenkinsci/jenkins-scripts/blob/master/scriptler/bulkDeleteBuilds.groovy
That script assumes you want to only delete a range of builds. To delete all builds for a given job, use this (tested):
// change this variable to match the name of the job whose builds you want to delete
def jobName = "Your Job Name"
def job = Jenkins.instance.getItem(jobName)
job.getBuilds().each { it.delete() }
// uncomment these lines to reset the build number to 1:
//job.nextBuildNumber = 1
//job.save()
I've achieved this by separating them in different , e.g.:
<div class="table">
<div class="row">
<div class="col">TD</div>
<div class="col">TD</div>
<div class="col">TD</div>
<div class="col">TD</div>
<div class="col">TD</div>
</div>
</div>
<div class="table">
<div class="row">
<div class="col">TD</div>
</div>
</div>
or you can define different classes for each tables
<div class="table2">
<div class="row2">
<div class="col2">TD</div>
</div>
</div>
From the user point of view they behave identically.
Granted it doesn't solve all colspan/rowspan problems but it does answer my need of the time.
from nltk.corpus import stopwords
# ...
filtered_words = [word for word in word_list if word not in stopwords.words('english')]
mkdir()
creates only one directory at a time, if it is parent that one only. other wise it can create the sub directory(if the specified path is existed only) and do not create any directories in between any two directories. so it can not create smultiple directories in one directory
mkdirs()
create the multiple directories(in between two directories also) at a time.
It's in the python docs.
import datetime
datetime.datetime.combine(datetime.date(2011, 1, 1),
datetime.time(10, 23))
returns
datetime.datetime(2011, 1, 1, 10, 23)
for me the shortest way is to type ./gradlew signingReport
in the terminal command line.
P.s : if you are in Windows use .\gradlew signingReport
instead.
I think that it's because the locale is hardcoded into the DatePipe
. See this link:
And there is no way to update this locale by configuration right now.
process.cwd()
returns the absolute path of your project.
Then :
res.sendFile( `${process.cwd()}/public/index1.html` );
You can use it in the same datafram (df) using the previously provided code
df[!grepl("REVERSE", df$Name),]
or you might assign a different name to the datafram using this code
df1<-df[!grepl("REVERSE", df$Name),]
Make use of the classpath.
ClassLoader classLoader = Thread.currentThread().getContextClassLoader();
URL url = classLoader.getResource("path/to/folder");
File file = new File(url.toURI());
// ...
I had the same problem when I changed from Websphere 8.5 to WebSphere Liberty.
I utilized FileInputStream
instead of getResourceAsStream()
, because for some reason WebSphere Liberty can't locate the file in the WEB-INF
folder.
The script was :
FileInputStream fis = new FileInputStream(getServletContext().getRealPath("/")
+ "\WEBINF\properties\myProperties.properties")
Note: I used this script only for development.
Using ~*
can improve greatly on performance, with functionality of INSTR.
SELECT id FROM groups WHERE name ~* 'adm'
return rows with name that contains OR equals to 'adm'.
For my case, I was trying to execute procedure code in MySQL, and due to some issue with server in which Server can't figure out where to end the statement I was getting Error Code 1064. So I wrapped the procedure with custom DELIMITER and it worked fine.
For example, Before it was:
DROP PROCEDURE IF EXISTS getStats;
CREATE PROCEDURE `getStats` (param_id INT, param_offset INT, param_startDate datetime, param_endDate datetime)
BEGIN
/*Procedure Code Here*/
END;
After putting DELIMITER it was like this:
DROP PROCEDURE IF EXISTS getStats;
DELIMITER $$
CREATE PROCEDURE `getStats` (param_id INT, param_offset INT, param_startDate datetime, param_endDate datetime)
BEGIN
/*Procedure Code Here*/
END;
$$
DELIMITER ;
I got this error because the instruction on the Web was
git checkout https://github.com/veripool/verilog-mode
which I did in a directory where (on my own initiative) i had run git init
.
The correct Web instruction (for newbies like me) should have been
git clone https://github.com/veripool/verilog-mode
To supplement the above answers into something a little more re-usable, I've come up with this, which continues to prompt the user if the input is considered invalid.
try:
input = raw_input
except NameError:
pass
def prompt(message, errormessage, isvalid):
"""Prompt for input given a message and return that value after verifying the input.
Keyword arguments:
message -- the message to display when asking the user for the value
errormessage -- the message to display when the value fails validation
isvalid -- a function that returns True if the value given by the user is valid
"""
res = None
while res is None:
res = input(str(message)+': ')
if not isvalid(res):
print str(errormessage)
res = None
return res
It can be used like this, with validation functions:
import re
import os.path
api_key = prompt(
message = "Enter the API key to use for uploading",
errormessage= "A valid API key must be provided. This key can be found in your user profile",
isvalid = lambda v : re.search(r"(([^-])+-){4}[^-]+", v))
filename = prompt(
message = "Enter the path of the file to upload",
errormessage= "The file path you provided does not exist",
isvalid = lambda v : os.path.isfile(v))
dataset_name = prompt(
message = "Enter the name of the dataset you want to create",
errormessage= "The dataset must be named",
isvalid = lambda v : len(v) > 0)
<input type="submit" <a href="#" onclick="history.back();">"Back"</a>
Is invalid HTML due to the unclosed input
element.
<a href="#" onclick="history.back(1);">"Back"</a>
is enough
$(window).load(function() {
$("html, body").animate({ scrollTop: $(document).height() }, 1000);
});
This grabs the height of the page and scrolls it down once the window has loaded. Change the 1000
to whatever you need to do it faster/slower once the page is ready.
Taking @Ants Aasmas answer one step further, you can create a wrapper that takes any method call and forwards it to all elements of a given list:
class AllOf:
def __init__(self, elements):
self.elements = elements
def __getattr__(self, attr):
def on_all(*args, **kwargs):
for obj in self.elements:
getattr(obj, attr)(*args, **kwargs)
return on_all
That class can then be used like this:
class Foo:
def __init__(self, val="quux!"):
self.val = val
def foo(self):
print "foo: " + self.val
a = [ Foo("foo"), Foo("bar"), Foo()]
AllOf(a).foo()
Which produces the following output:
foo: foo foo: bar foo: quux!
With some work and ingenuity it could probably be enhanced to handle attributes as well (returning a list of attribute values).
WebDriver driver = new FirefoxDriver();
Actions action = new Actions(driver);
action.keyDown(Keys.CONTROL).sendKeys("a").keyUp(Keys.CONTROL).perform();
This method removes the extra call ( String.ValueOf() ) to convert unicode to string.
var flasher_icon = function (obj) {_x000D_
var classToToggle = obj.classToToggle;_x000D_
var elem = obj.targetElem;_x000D_
var oneTime = obj.speed;_x000D_
var halfFlash = oneTime / 2;_x000D_
var totalTime = obj.flashingTimes * oneTime;_x000D_
_x000D_
var interval = setInterval(function(){_x000D_
elem.addClass(classToToggle);_x000D_
setTimeout(function() {_x000D_
elem.removeClass(classToToggle);_x000D_
}, halfFlash);_x000D_
}, oneTime);_x000D_
_x000D_
setTimeout(function() {_x000D_
clearInterval(interval);_x000D_
}, totalTime);_x000D_
};_x000D_
_x000D_
flasher_icon({_x000D_
targetElem: $('#icon-step-1-v1'),_x000D_
flashingTimes: 3,_x000D_
classToToggle: 'flasher_icon',_x000D_
speed: 500_x000D_
});
_x000D_
.steps-icon{_x000D_
background: #d8d8d8;_x000D_
color: #000;_x000D_
font-size: 55px;_x000D_
padding: 15px;_x000D_
border-radius: 50%;_x000D_
margin: 5px;_x000D_
cursor: pointer;_x000D_
}_x000D_
.flasher_icon{_x000D_
color: #fff;_x000D_
background: #820000 !important;_x000D_
padding-bottom: 15px !important;_x000D_
padding-top: 15px !important;_x000D_
}
_x000D_
<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>_x000D_
<link href="https://fonts.googleapis.com/icon?family=Material+Icons" rel="stylesheet"> _x000D_
_x000D_
<i class="steps-icon material-icons active" id="icon-step-1-v1" title="" data-toggle="tooltip" data-placement="bottom" data-original-title="Origin Airport">alarm</i>
_x000D_
In your onResume() section of the Activity you can do call the method bringKeyboard();
onResume() {
EditText yourEditText= (EditText) findViewById(R.id.yourEditText);
bringKeyboard(yourEditText);
}
protected boolean bringKeyboard(EditText view) {
if (view == null) {
return false;
}
try {
// Depending if edittext has some pre-filled values you can decide whether to bring up soft keyboard or not
String value = view.getText().toString();
if (value == null) {
InputMethodManager imm = (InputMethodManager)context.getSystemService(Context.INPUT_METHOD_SERVICE);
imm.hideSoftInputFromWindow(view.getWindowToken(), 0);
return true;
}
} catch (Exception e) {
Log.e(TAG, "decideFocus. Exception", e);
}
return false;
}
In SQL Server you can use YEAR
, MONTH
and DAY
instead of DATEPART
.
(at least in SQL Server 2005/2008, I'm not sure about SQL Server 2000 and older)
I prefer using these "short forms" because to me, YEAR(getdate())
is shorter to type and better to read than DATEPART(yyyy, getdate())
.
So you could also query your table like this:
select *
from your_table
where month_column = MONTH(getdate())
and year_column = YEAR(getdate())
ws2s project is aimed at bring socket to browser-side js. It is a websocket server which transform websocket to socket.
ws2s schematic diagram
code sample:
var socket = new WS2S("wss://ws2s.feling.io/").newSocket()
socket.onReady = () => {
socket.connect("feling.io", 80)
socket.send("GET / HTTP/1.1\r\nHost: feling.io\r\nConnection: close\r\n\r\n")
}
socket.onRecv = (data) => {
console.log('onRecv', data)
}
If you've changed the search_path
, specify the public schema in the function call:
public.uuid_generate_v4()
I had similar issue, this is how it was solved
xyz@ip :~/formsProject_SVN$ svn resolved formsProj/templates/search
Resolved conflicted state of 'formsProj/templates/search'
Now update your project
xyz@ip:~/formsProject_SVN$ svn update
Updating '.':
Select: (mc) keep affected local moves, (r) mark resolved (breaks moves), (p) postpone, (q) quit resolution, (h) help: r (select "r" option to resolve)
Resolved conflicted state of 'formsProj/templates/search'
Summary of conflicts: Tree conflicts: 0 remaining (and 1 already resolved)
Another simpler/lighter alternative to gnuplot is ervy, a NodeJS based terminal charts tool.
Supported types: scatter (XY points), bar, pie, bullet, donut and gauge.
Usage examples with various options can be found on the projects GitHub repo
In addition to all the answers, if you happen to receive in response text/html
while you've expected something else (i.e. application/json
), it may suggest that an error occurred on the server side (say 404) and the error page was returned instead of your data.
So it happened in my case. Hope it will save somebody's time.
The module timeit
is useful for this and is included in the standard Python distribution.
Example:
import timeit
timeit.Timer('for i in xrange(10): oct(i)').timeit()
Two options:
char c1 = '\u0001';
char c1 = (char) 1;
Use setInterval(func, delay) to run the func
every delay
milliseconds.
setTimeout()
runs your function once after delay
milliseconds -- it does not run it repeatedly. A common strategy is to run your code with setTimeout and call setTimeout again at the end of your code.
What about:
PrintWriter out = response.getWriter();
out.println("THE_STRING_TO_SEND_AS_RESPONSE");
return null;
This woks for me.
Graphically, the cron syntax for Quarz is (source):
+-------------------- second (0 - 59)
| +----------------- minute (0 - 59)
| | +-------------- hour (0 - 23)
| | | +----------- day of month (1 - 31)
| | | | +-------- month (1 - 12)
| | | | | +----- day of week (0 - 6) (Sunday=0 or 7)
| | | | | | +-- year [optional]
| | | | | | |
* * * * * * * command to be executed
So if you want to run a command every 30 minutes you can say either of these:
0 0/30 * * * * ?
0 0,30 * * * * ?
You can check crontab expressions using either of these:
This works for me when I sent file + text + array:
const uploadData = new FormData();
if (isArray(value)) {
const k = `${key}[]`;
uploadData.append(k, value);
} else {
uploadData.append(key, value);
}
const headers = {
'Content-Type': 'multipart/form-data',
};
It's due to you sending one object, and you're expecting two parameters.
Try this and you'll see:
public class UserDetails
{
public string username { get; set; }
public string password { get; set; }
}
public JsonResult Login(UserDetails data)
{
string error = "";
//the rest of your code
}
You can get if from your document_cache folder, subfolder (mine is 1946507). Once there, rename the "content" by adding .pdf to the end of the file, save, and open with any pdf reader.
I had to do: c:\Users\xxxx>c:/python27/scripts/pip install openpyxl
I had to save the openpyxl files in the scripts folder.
I found an interesting solution which might help. I did this in my onBackPressed()
method.
finishAffinity();
finish();
FinishAffinity
removes the connection of the existing activity to its stack. And then finish helps you exit that activity. Which will eventually exit the application.
Almost there. In your predicate, you want a relative path, so change
./book[/author/name = 'John']
to either
./book[author/name = 'John']
or
./book[./author/name = 'John']
and you will match your element. Your current predicate goes back to the root of the document to look for an author
.
Use the Maven debug option, ie mvn -X
:
Apache Maven 3.0.3 (r1075438; 2011-02-28 18:31:09+0100)
Maven home: /usr/java/apache-maven-3.0.3
Java version: 1.6.0_12, vendor: Sun Microsystems Inc.
Java home: /usr/java/jdk1.6.0_12/jre
Default locale: en_US, platform encoding: UTF-8
OS name: "linux", version: "2.6.32-32-generic", arch: "i386", family: "unix"
[INFO] Error stacktraces are turned on.
[DEBUG] Reading global settings from /usr/java/apache-maven-3.0.3/conf/settings.xml
[DEBUG] Reading user settings from /home/myhome/.m2/settings.xml
...
In this output, you can see that the settings.xml is loaded from /home/myhome/.m2/settings.xml
.
It's because you have turned on USB debugging in Developer Options. You can create a bug report by holding the power + both volume up and down.
Edit: This is what the forums say:
By pressing Volume up + Volume down + power button, you will feel a vibration after a second or so, that's when the bug reporting initiated.
To disable:
/system/bin/bugmailer.sh must be deleted/renamed.
There should be a folder on your SD card called "bug reports".
Have a look at this thread: http://forum.xda-developers.com/showthread.php?t=2252948
And this one: http://forum.xda-developers.com/showthread.php?t=1405639
Git just stores the contents of the link (i.e. the path of the file system object that it links to) in a 'blob' just like it would for a normal file. It then stores the name, mode and type (including the fact that it is a symlink) in the tree object that represents its containing directory.
When you checkout a tree containing the link, it restores the object as a symlink regardless of whether the target file system object exists or not.
If you delete the file that the symlink references it doesn't affect the Git-controlled symlink in any way. You will have a dangling reference. It is up to the user to either remove or change the link to point to something valid if needed.
you can try
DocumentBuilder db = DocumentBuilderFactory.newInstance().newDocumentBuilder();
InputSource is = new InputSource();
is.setCharacterStream(new StringReader("<root><node1></node1></root>"));
Document doc = db.parse(is);
refer this http://www.java2s.com/Code/Java/XML/ParseanXMLstringUsingDOMandaStringReader.htm
Just hit on this when trying to solve this type of thing my self.
I did a selector that deals with the element after being something other than a p.
.here .is.the #selector h4 + * {...}
Hope this helps anyone who finds it :)
Assign the second variable for the $.each function()
as well, makes it lot easier as it'll provide you the data (so you won't have to work with the indicies).
$.each(json, function(arrayID,group) {
console.log('<a href="'+group.GROUP_ID+'">');
$.each(group.EVENTS, function(eventID,eventData) {
console.log('<p>'+eventData.SHORT_DESC+'</p>');
});
});
Should print out everything you were trying in your question.
http://jsfiddle.net/niklasvh/hZsQS/
edit renamed the variables to make it bit easier to understand what is what.
Update: a better idea, set the "AppendDataBoundItems" property to true, then declare the "Choose item" declaratively. The databinding operation will add to the statically declared item.
<asp:DropDownList ID="ddl" runat="server" AppendDataBoundItems="true">
<asp:ListItem Value="0" Text="Please choose..."></asp:ListItem>
</asp:DropDownList>
-Oisin
Here's a simple one written in VB for an ASPX page:
If myVar > 1 Then
response.write("Greater than 1")
else
response.write("Not!")
End If
Although it wouldn't be a "true object", you could always do something like this:
var foo = [
{Key1: "key1"},
{Key2: "key2"},
{Key3: "key3"}
];
alert(foo.length); // === 3
I had the same problem and I solve it like :
public bool HasMember(IEnumerable<TEntity> Dataset)
{
return Dataset != null && Dataset.Any(c=>c!=null);
}
"c=>c!=null" will ignore all the null entities.
Here's how to do it from a csv:
import numpy as np
import matplotlib.pyplot as plt
from scipy.interpolate import griddata
# Load data from CSV
dat = np.genfromtxt('dat.xyz', delimiter=' ',skip_header=0)
X_dat = dat[:,0]
Y_dat = dat[:,1]
Z_dat = dat[:,2]
# Convert from pandas dataframes to numpy arrays
X, Y, Z, = np.array([]), np.array([]), np.array([])
for i in range(len(X_dat)):
X = np.append(X, X_dat[i])
Y = np.append(Y, Y_dat[i])
Z = np.append(Z, Z_dat[i])
# create x-y points to be used in heatmap
xi = np.linspace(X.min(), X.max(), 1000)
yi = np.linspace(Y.min(), Y.max(), 1000)
# Interpolate for plotting
zi = griddata((X, Y), Z, (xi[None,:], yi[:,None]), method='cubic')
# I control the range of my colorbar by removing data
# outside of my range of interest
zmin = 3
zmax = 12
zi[(zi<zmin) | (zi>zmax)] = None
# Create the contour plot
CS = plt.contourf(xi, yi, zi, 15, cmap=plt.cm.rainbow,
vmax=zmax, vmin=zmin)
plt.colorbar()
plt.show()
where dat.xyz
is in the form
x1 y1 z1
x2 y2 z2
...
No, you cannot insert a div directly inside of a table. It is not correct html, and will result in unexpected output.
I would be happy to be more insightful, but you haven't said what you are attempting, so I can't really offer an alternative.
The list()
function [docs] will convert a string into a list of single-character strings.
>>> list('hello')
['h', 'e', 'l', 'l', 'o']
Even without converting them to lists, strings already behave like lists in several ways. For example, you can access individual characters (as single-character strings) using brackets:
>>> s = "hello"
>>> s[1]
'e'
>>> s[4]
'o'
You can also loop over the characters in the string as you can loop over the elements of a list:
>>> for c in 'hello':
... print c + c,
...
hh ee ll ll oo
assuming you want to have a range between x to y
range(x,y+1)
>>> range(11,17)
[11, 12, 13, 14, 15, 16]
>>>
use list for 3.x support
In my case, Android Studio 3.0.1, I fixed the issue with the following two steps.
Step 1: Change Gradle plugin version in project-level build.gradle
buildscript {
repositories {
jcenter()
mavenCentral()
maven {
url 'https://maven.google.com/'
name 'Google'
}
}
dependencies {
classpath 'com.android.tools.build:gradle:3.0.1'
}
}
Step 2: Change gradle version
distributionUrl=https\://services.gradle.org/distributions/gradle-4.1-all.zip
In Django 10. myproject/urls.py: at the beginning of urlpatterns
from django.views.i18n import JavaScriptCatalog
urlpatterns = [
url(r'^jsi18n/$', JavaScriptCatalog.as_view(), name='javascript-catalog'),
.
.
.]
In my template.html:
{% load staticfiles %}
<script src="{% static "js/jquery-2.2.3.min.js" %}"></script>
<script src="{% static "js/bootstrap.min.js" %}"></script>
{# Loading internazionalization for js #}
{% load i18n admin_modify %}
<script type="text/javascript" src="{% url 'javascript-catalog' %}"></script>
<script type="text/javascript" src="{% static "/admin/js/jquery.init.js" %}"></script>
<link rel="stylesheet" type="text/css" href="{% static "/admin/css/base.css" %}">
<link rel="stylesheet" type="text/css" href="{% static "/admin/css/forms.css" %}">
<link rel="stylesheet" type="text/css" href="{% static "/admin/css/login.css" %}">
<link rel="stylesheet" type="text/css" href="{% static "/admin/css/widgets.css" %}">
<script type="text/javascript" src="{% static "/admin/js/core.js" %}"></script>
<script type="text/javascript" src="{% static "/admin/js/SelectFilter2.js" %}"></script>
<script type="text/javascript" src="{% static "/admin/js/admin/RelatedObjectLookups.js" %}"></script>
<script type="text/javascript" src="{% static "/admin/js/actions.js" %}"></script>
<script type="text/javascript" src="{% static "/admin/js/calendar.js" %}"></script>
<script type="text/javascript" src="{% static "/admin/js/admin/DateTimeShortcuts.js" %}"></script>
Use the ampersand just like you would from the shell.
#!/usr/bin/bash
function_to_fork() {
...
}
function_to_fork &
# ... execution continues in parent process ...
An important point is to consider if you perform tasks based on difference between 2 timestamps because you will get odd behavior if you generate it with gettimeofday()
, and even clock_gettime(CLOCK_REALTIME,..)
at the moment where you will set the time of your system.
To prevent such problem, use clock_gettime(CLOCK_MONOTONIC_RAW, &tms)
instead.
if some module you cant find, try with Static URI, for example:
var Mustache = require("/media/fabio/Datos/Express/2_required_a_module/node_modules/mustache/mustache.js");
This example, run on Ubuntu Gnome 16.04 of 64 bits, node -v: v4.2.6, npm: 3.5.2 Refer to: Blog of Ben Nadel
I tried all of the above, in a nutshell all you need is
let sorted = dictionary.sorted { $0.key < $1.key }
let keysArraySorted = Array(sorted.map({ $0.key }))
let valuesArraySorted = Array(sorted.map({ $0.value }))
Try:
> d <- data.frame(a=1:3, b=4:6, c=7:9)
> d
a b c
1 1 4 7
2 2 5 8
3 3 6 9
> d[1, ]
a b c
1 1 4 7
> d[1, ]['a']
a
1 1
This can be achieved by three different approaches (see my blog article here for more details):
Elements
panel like below$x()
and $$()
in Console
panel, as shown in Lawrence's answerHere is how you search XPath in Elements
panel:
Since FF 75 it's possible to use raw xpath query without evaluation xpath expressions, see documentation for more info.
In the command line at the bottom use the following:
$()
: Returns the first element that matches. Equivalent to document.querySelector()
or calls the $
function in the page, if it exists.
$$()
: Returns an array of DOM nodes that match. This is like for document.querySelectorAll()
, but returns an array instead of a NodeList
.
$x()
: Evaluates an XPath expression and returns an array of matching nodes.
Check the $VIRTUAL_ENV
environment variable.
The $VIRTUAL_ENV
environment variable contains the virtual environment's directory when in an active virtual environment.
>>> import os
>>> os.environ['VIRTUAL_ENV']
'/some/path/project/venv'
Once you run deactivate
/ leave the virtual environment, the $VIRTUAL_ENV
variable will be cleared/empty. Python will raise a KeyError
because the environment variable was unset.
>>> import os
>>> os.environ['VIRTUAL_ENV']
Traceback (most recent call last):
File "<stdin>", line 1, in <module>
File "/usr/local/Cellar/python/3.7.3/Frameworks/Python.framework/Versions/3.7/lib/python3.7/os.py", line 678, in __getitem__
raise KeyError(key) from None
KeyError: 'VIRTUAL_ENV'
These same environment variable checks can of course also be done outside of the Python script, in the shell.
If i
is the int
, then
char c = i;
makes it a char
. You might want to add a check that the value is <128
if it comes from an untrusted source. This is best done with isascii
from <ctype.h>
, if available on your system (see @Steve Jessop's comment to this answer).
I'm guessing you didn't run this command after the commit failed so just actually run this to create the remote :
git remote add origin https://github.com/VijayNew/NewExample.git
And the commit failed because you need to git add
some files you want to track.
Code:
private static void RegisterServices(IKernel kernel)
{
Mock<IProductRepository> mock=new Mock<IProductRepository>();
mock.Setup(x => x.Products).Returns(new List<Product>
{
new Product {Name = "Football", Price = 23},
new Product {Name = "Surf board", Price = 179},
new Product {Name = "Running shose", Price = 95}
});
kernel.Bind<IProductRepository>().ToConstant(mock.Object);
}
but see exception.
document.getElementById('youridhere').click()
This worked for me:
BufferedImage bufImgs = ImageIO.read(new File("c:\\adi.bmp"));
double[][] data = new double[][];
bufImgs.getData().getPixels(0,0,bufImgs.getWidth(),bufImgs.getHeight(),data[i]);
The steps you took are not appropriate because the cell you want formatted is not the trigger cell (presumably won't normally be blank). In your case you want formatting to apply to one set of cells according to the status of various other cells. I suggest with data layout as shown in the image (and with thanks to @xQbert for a start on a suitable formula) you select ColumnA and:
HOME > Styles - Conditional Formatting, New Rule..., Use a formula to determine which cells to format and Format values where this formula is true::
=AND(LEN(E1)*LEN(F1)*LEN(G1)*LEN(H1)=0,NOT(ISBLANK(A1)))
Format..., select formatting, OK, OK.
where I have filled yellow the cells that are triggering the red fill result.
If it's important you really need to benchmark both options!
Having said that, I have always used the exception method, the reasoning being it's better to only hit the database once.
For your validation event IMO the easiest method would be to use a character array to validate textbox characters against. True - iterating and validating isn't particularly efficient, but it is straightforward.
Alternately, use a regular expression of your whitelist characters against the input string. Your events are availalbe at MSDN here: http://msdn.microsoft.com/en-us/library/system.windows.forms.control.lostfocus.aspx
opacity
applies to the whole element, so if you have a background, border or other effects on that element, those will also become transparent. If you only want the text to be transparent, use rgba
.
#foo {
color: #000; /* Fallback for older browsers */
color: rgba(0, 0, 0, 0.5);
font-size: 16pt;
font-family: Arial, sans-serif;
}
Also, steer far, far away from <font>
. We have CSS for that now.
Easiest Way to do it :
imageView.setColorFilter(Color.rgb(r, g b));
or
imageView.setColorFilter(Color.argb(a, r, g, b));
a, r, g, b : Color argb values.
Yes you only need $()
when you're using jQuery. If you want jQuery's help to do DOM things just keep this in mind.
$(this)[0] === this
Basically every time you get a set of elements back jQuery turns it into a jQuery object. If you know you only have one result, it's going to be in the first element.
$("#myDiv")[0] === document.getElementById("myDiv");
And so on...
try this:
string.Format("{0:HH:mm:ss tt}", DateTime.Now);
for further details you can check it out : How do you get the current time of day?
The node-mysql
library automatically performs escaping when used as you are already doing. See https://github.com/felixge/node-mysql#escaping-query-values
There is no difference in working in both the concepts of assignment to unique_ptr.
int* intPtr = new int(3);
unique_ptr<int> uptr (intPtr);
is similar to
unique_ptr<int> uptr (new int(3));
Here unique_ptr automatically deletes the space occupied by uptr
.
how pointers, declared in this way will be different from the pointers declared in a "normal" way.
If you create an integer in heap space (using new keyword or malloc), then you will have to clear that memory on your own (using delete or free respectively).
In the below code,
int* heapInt = new int(5);//initialize int in heap memory
.
.//use heapInt
.
delete heapInt;
Here, you will have to delete heapInt, when it is done using. If it is not deleted, then memory leakage occurs.
In order to avoid such memory leaks unique_ptr is used, where unique_ptr automatically deletes the space occupied by heapInt when it goes out of scope. So, you need not do delete or free for unique_ptr.
you can use Sequel pro to do this, there is an option to 'get as insert statement' for the results obtained
You can use simple color resources, specified usually inside res/values/colors.xml
.
<color name="red">#ffff0000</color>
and use this via android:background="@color/red"
. This color can be used anywhere else too, e.g. as a text color. Reference it in XML the same way, or get it in code via getResources().getColor(R.color.red)
.
You can also use any drawable resource as a background, use android:background="@drawable/mydrawable"
for this (that means 9patch drawables, normal bitmaps, shape drawables, ..).
No idea if this still applies to 8, but historically IE doesn't apply several styles to elements that don't "have layout."
Here is the right way to do imports in Java.
import Dan.Vik;
class Kab
{
public static void main(String args[])
{
Vik Sam = new Vik();
Sam.disp();
}
}
You don't import methods in java. There is an advanced usage of static imports but basically you just import packages and classes. If the function you are importing is a static function you can do a static import, but I don't think you are looking for static imports here.
Can i just point out what you are all trying to set and int where its expecting a drawable.
should you not be doing the following?
imageview.setImageDrawable(this.getResources().getDrawable(R.drawable.icon_image));
imageview.setImageDrawable(getApplicationContext().getResources().getDrawable(R.drawable.icon_profile_image));
I believe this works:
def cartesian_product(L):
if L:
return {(a,) + b for a in L[0]
for b in cartesian_product(L[1:])}
else:
return {()}
You could try copying a shortcut to your application into the startup folder instead of adding things to the registry. You can get the path with Environment.SpecialFolder.Startup
. This is available in all .net frameworks since 1.1.
Alternatively, maybe this site will be helpful to you, it lists a lot of the different ways you can get an application to auto-start.
Programatically, you may want to publish the application launcher yourself :
Note: this method no longer works starting with Android 8.0 - Oreo
In your AndroidManifest.xml, add :
<uses-permission android:name="com.android.launcher.permission.INSTALL_SHORTCUT"/>
Then you need create your app launcher intent:
Intent myLauncherIntent = new Intent();
myLauncherIntent.setClassName("your.package.name", "YourLauncherActivityName");
myLauncherIntent.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
Create an install shortcut intent with your app launcher and custom icon:
Intent intent = new Intent();
intent.putExtra(Intent.EXTRA_SHORTCUT_INTENT, myLauncherIntent);
intent.putExtra(Intent.EXTRA_SHORTCUT_NAME, "Application Name");
intent.putExtra
(
Intent.EXTRA_SHORTCUT_ICON_RESOURCE,
Intent.ShortcutIconResource.fromContext
(
getApplicationContext(),
R.drawable.app_icon
)
);
intent.setAction("com.android.launcher.action.INSTALL_SHORTCUT");
And finally launch the broadcast intent:
getApplicationContext().sendBroadcast(intent);
When you've written something that isn't allowed by the language standard (and therefore can't really be well-defined behaviour, which is reason enough to not do it) but happens to map to some kind of executable if fed naïvely to the compiling engine, then -fpermissive
will do just that instead of stopping with this error message. In some cases, the program will then behave exactly as you originally intended, but you definitely shouldn't rely on it unless you have some very special reason not to use some other solution.
I made an online tool called Unclosed Tag Finder which will do what you need.
Paste in your HTML, and it will give you output like "Closing tag on line 188 does not match open tag on line 62."
Update: The new location of the Unclosed Tag Finder is https://jonaquino.blogspot.com/2013/05/unclosed-tag-finder.html
I had the same error and I solved it by importing HttpModule
in app.module.ts
import { HttpModule } from '@angular/http';
and then in the imports[]
array:
HttpModule
Assuming you are talking about the ActionEvent
class, then there is a big difference between the two methods.
getActionCommand()
gives you a String representing the action command. The value is component specific; for a JButton
you have the option to set the value with setActionCommand(String command)
but for a JTextField
if you don't set this, it will automatically give you the value of the text field. According to the javadoc this is for compatability with java.awt.TextField
.
getSource()
is specified by the EventObject
class that ActionEvent
is a child of (via java.awt.AWTEvent
). This gives you a reference to the object that the event came from.
Edit:
Here is a example. There are two fields, one has an action command explicitly set, the other doesn't. Type some text into each then press enter.
public class Events implements ActionListener {
private static JFrame frame;
public static void main(String[] args) {
frame = new JFrame("JTextField events");
frame.getContentPane().setLayout(new FlowLayout());
JTextField field1 = new JTextField(10);
field1.addActionListener(new Events());
frame.getContentPane().add(new JLabel("Field with no action command set"));
frame.getContentPane().add(field1);
JTextField field2 = new JTextField(10);
field2.addActionListener(new Events());
field2.setActionCommand("my action command");
frame.getContentPane().add(new JLabel("Field with an action command set"));
frame.getContentPane().add(field2);
frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
frame.setSize(220, 150);
frame.setResizable(false);
frame.setVisible(true);
}
@Override
public void actionPerformed(ActionEvent evt) {
String cmd = evt.getActionCommand();
JOptionPane.showMessageDialog(frame, "Command: " + cmd);
}
}
Be careful. For this you need @GET (not @PUT).
In this state:
The thread is reading and processing rows for a SELECT statement, and sending data to the client.
Because operations occurring during this this state tend to perform large amounts of disk access (reads).
That's why it takes more time to complete and so is the longest-running state over the lifetime of a given query.
I saw this error when a colleague was trying to connect to a database that was protected behind a VPN. The user had unknownling switched to a wireless network that did not have VPN access. One way to test this scenario is to see if you can establish a connection in another means, such as SSMS, and see if that fails as well.
A simple way without any libraries or sets
def mcount(l):
n = [] #To store count of each elements
for x in l:
count = 0
for i in range(len(l)):
if x == l[i]:
count+=1
n.append(count)
a = max(n) #largest in counts list
for i in range(len(n)):
if n[i] == a:
return(l[i],a) #element,frequency
return #if something goes wrong
I just added the existing framework folder manually into the project navigator. Worked for me.
Well, here the positioning of the css and script links makes a to of difference. Bootstrap executes in CSS and then Scripts fashion. So if you have even one script written at incorrect place it makes a lot of difference. You can follow the below snippet and change your code accordingly.
<!DOCTYPE html>_x000D_
<html lang="en">_x000D_
<head>_x000D_
<meta charset="utf-8">_x000D_
<meta name="viewport" content="width=device-width, initial-scale=1">_x000D_
<link rel="stylesheet" href="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.7/css/bootstrap.min.css">_x000D_
<script src="https://ajax.googleapis.com/ajax/libs/jquery/1.12.4/jquery.min.js"></script>_x000D_
<script src="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.7/js/bootstrap.min.js"></script>_x000D_
_x000D_
<!-- <link rel="stylesheet" type="text/css" href="css/bootstrap-datetimepicker.css"> -->_x000D_
<script type="text/javascript" src="https://cdnjs.cloudflare.com/ajax/libs/moment.js/2.15.1/moment.min.js"></script>_x000D_
<link rel="stylesheet" type="text/css" href="https://cdnjs.cloudflare.com/ajax/libs/bootstrap-datetimepicker/4.17.43/css/bootstrap-datetimepicker.min.css"> _x000D_
<link rel="stylesheet" type="text/css" href="https://cdnjs.cloudflare.com/ajax/libs/bootstrap-datetimepicker/4.17.43/css/bootstrap-datetimepicker-standalone.css"> _x000D_
<script type="text/javascript" src="https://cdnjs.cloudflare.com/ajax/libs/bootstrap-datetimepicker/4.17.43/js/bootstrap-datetimepicker.min.js"></script>_x000D_
_x000D_
</head>_x000D_
<body>_x000D_
<div class="container">_x000D_
<div class="row">_x000D_
<div class='col-sm-6'>_x000D_
<div class="form-group">_x000D_
<div class='input-group date' id='datetimepicker1'>_x000D_
<input type='text' class="form-control" />_x000D_
<span class="input-group-addon">_x000D_
<span class="glyphicon glyphicon-calendar"></span>_x000D_
</span>_x000D_
</div>_x000D_
</div>_x000D_
</div>_x000D_
<script type="text/javascript">_x000D_
$(function () {_x000D_
$('#datetimepicker1').datetimepicker();_x000D_
});_x000D_
</script>_x000D_
</div>_x000D_
</div>_x000D_
</body>_x000D_
</html>
_x000D_
If you want to read messages from the serial port and you need to deal with every single message separately I suggest separating messages into parts using a separator like this:
String getMessage()
{
String msg=""; //the message starts empty
byte ch; // the character that you use to construct the Message
byte d='#';// the separating symbol
if(Serial.available())// checks if there is a new message;
{
while(Serial.available() && Serial.peek()!=d)// while the message did not finish
{
ch=Serial.read();// get the character
msg+=(char)ch;//add the character to the message
delay(1);//wait for the next character
}
ch=Serial.read();// pop the '#' from the buffer
if(ch==d) // id finished
return msg;
else
return "NA";
}
else
return "NA"; // return "NA" if no message;
}
This way you will get a single message every time you use the function.
The actual cause of this warning is that you have configured your project to run with an earlier JRE version then you have installed. Generally this occurs whenever you use old projects with newer JREs.
This will likely cause no trouble at all. But if you want to be really on the save side, you should install the correct, old JDK. You can find them here: http://www.oracle.com/technetwork/java/archive-139210.html
If you then restart eclipse you can go into Window > Preferences > Java > Installed JREs > Execution Environments and set for in your case J2SE-1.4 the [perfect match] as eclipse calls it.
<form name="theform">
<input type="text" />
<input type="text" />`enter code here`
<input id="submitbutton" type="submit"disabled="disabled" value="Submit"/>
</form>
<script type="text/javascript" language="javascript">
let txt = document.querySelectorAll('[type="text"]');
for (let i = 0; i < txt.length; i++) {
txt[i].oninput = () => {
if (!(txt[0].value == '') && !(txt[1].value == '')) {
submitbutton.removeAttribute('disabled')
}
}
}
</script>
Set
input:focus{
outline: 0 none;
}
"!important" is just in case. That's not necessary. [And now it's gone. –Ed.]
Run cmd as administrator. Type iisreset
. That's it.
def chunks(iterable,n):
"""assumes n is an integer>0
"""
iterable=iter(iterable)
while True:
result=[]
for i in range(n):
try:
a=next(iterable)
except StopIteration:
break
else:
result.append(a)
if result:
yield result
else:
break
g1=(i*i for i in range(10))
g2=chunks(g1,3)
print g2
'<generator object chunks at 0x0337B9B8>'
print list(g2)
'[[0, 1, 4], [9, 16, 25], [36, 49, 64], [81]]'
With no argument:
ourObject = PowerMockito.spy(new OurClass());
when(ourObject , "ourPrivateMethodName").thenReturn("mocked result");
With String
argument:
ourObject = PowerMockito.spy(new OurClass());
when(ourObject, method(OurClass.class, "ourPrivateMethodName", String.class))
.withArguments(anyString()).thenReturn("mocked result");
Sometimes, XCode does not forget the line which had an "Editor Placeholder" even if you have replaced it with a value. Cut the portion of the code where XCode is complaining and paste the code back to the same place to make the error message go away. This worked for me.
The simplest solution (without depending on any third-party library or platform) is to create a URL instance pointing to the web page / link you want to download, and read the content using streams.
For example:
import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStream;
import java.io.InputStreamReader;
import java.net.URL;
import java.net.URLConnection;
public class DownloadPage {
public static void main(String[] args) throws IOException {
// Make a URL to the web page
URL url = new URL("http://stackoverflow.com/questions/6159118/using-java-to-pull-data-from-a-webpage");
// Get the input stream through URL Connection
URLConnection con = url.openConnection();
InputStream is =con.getInputStream();
// Once you have the Input Stream, it's just plain old Java IO stuff.
// For this case, since you are interested in getting plain-text web page
// I'll use a reader and output the text content to System.out.
// For binary content, it's better to directly read the bytes from stream and write
// to the target file.
BufferedReader br = new BufferedReader(new InputStreamReader(is));
String line = null;
// read each line and write to System.out
while ((line = br.readLine()) != null) {
System.out.println(line);
}
}
}
Hope this helps.
Use "\n":
file.write("My String\n")
See the Python manual for reference.
fetch("http://localhost:8988/api", {
//mode: "no-cors",
method: "GET",
headers: {
"Accept": "application/json"
}
})
.then(response => {
return response.json();
})
.then(data => {
return data;
})
.catch(error => {
return error;
});
This works for me.
We can set the width for ul tag then it will align center.
#header ul {
display: block;
margin: 0 auto;
width: 420px;
max-width: 100%;
}
Try this one:
class test {
public function newTest(){
$this->bigTest();
$this->smallTest();
}
private function bigTest(){
//Big Test Here
}
private function smallTest(){
//Small Test Here
}
public function scoreTest(){
//Scoring code here;
}
}
$testObject = new test();
$testObject->newTest();
$testObject->scoreTest();
Solution in Swift 3:
button.setTitleColor(UIColor.red, for: .normal)
This will set the title color of button.
The first <img />
is invalid - src
is a required attribute. data-src
is an attribute than can be leveraged by, say, JavaScript, but has no presentational meaning.
public extension Swift.Optional {
func nonEmptyValue<T>(fallback: T) -> T {
if let stringValue = self as? String, stringValue.isEmpty {
return fallback
}
if let value = self as? T {
return value
} else {
return fallback
}
}
}
I ran into the same snag..and the solution was to push the code to the repo as though it were an existing project and not a brand new one being initialised.
git remote add origin https://github.com/Name/reponame.git
git branch -M main
git push -u origin main
There are various ways to achieve this. Here are three.
Map<String, String> map = new HashMap<String, String>();
map.put("key1", "value1");
map.put("key2", "value2");
map.put("key3", "value3");
System.out.println("using entrySet and toString");
for (Entry<String, String> entry : map.entrySet()) {
System.out.println(entry);
}
System.out.println();
System.out.println("using entrySet and manual string creation");
for (Entry<String, String> entry : map.entrySet()) {
System.out.println(entry.getKey() + "=" + entry.getValue());
}
System.out.println();
System.out.println("using keySet");
for (String key : map.keySet()) {
System.out.println(key + "=" + map.get(key));
}
System.out.println();
using entrySet and toString
key1=value1
key2=value2
key3=value3
using entrySet and manual string creation
key1=value1
key2=value2
key3=value3
using keySet
key1=value1
key2=value2
key3=value3
Constructors don't return a type , just remove the return type which is void in your case. It would run fine then.
In newer versions of angular (I'm using 1.3) you can basically set the model and the value and the double binding do all the work this example works like a charm:
angular.module('radioExample', []).controller('ExampleController', ['$scope', function($scope) {_x000D_
$scope.color = {_x000D_
name: 'blue'_x000D_
};_x000D_
}]);
_x000D_
<script src="https://ajax.googleapis.com/ajax/libs/angularjs/1.3.15/angular.min.js"></script>_x000D_
<html>_x000D_
<body ng-app="radioExample">_x000D_
<form name="myForm" ng-controller="ExampleController">_x000D_
<input type="radio" ng-model="color.name" value="red"> Red <br/>_x000D_
<input type="radio" ng-model="color.name" value="green"> Green <br/>_x000D_
<input type="radio" ng-model="color.name" value="blue"> Blue <br/>_x000D_
<tt>color = {{color.name}}</tt><br/>_x000D_
</form>_x000D_
</body>_x000D_
</html>
_x000D_
I think the OP is asking the wrong question. The code below will show that it not necessary to manually raise the PropertyChanged
EVENT from a dependency property to achieve the desired result. The way to do it is handle the PropertyChanged
CALLBACK on the dependency property and set values for other dependency properties there. The following is a working example.
In the code below, MyControl
has two dependency properties - ActiveTabInt
and ActiveTabString
. When the user clicks the button on the host (MainWindow
), ActiveTabString
is modified. The PropertyChanged
CALLBACK on the dependency property sets the value of ActiveTabInt
. The PropertyChanged
EVENT is not manually raised by MyControl
.
MainWindow.xaml.cs
/// <summary>
/// Interaction logic for MainWindow.xaml
/// </summary>
public partial class MainWindow : Window, INotifyPropertyChanged
{
public MainWindow()
{
InitializeComponent();
DataContext = this;
ActiveTabString = "zero";
}
private string _ActiveTabString;
public string ActiveTabString
{
get { return _ActiveTabString; }
set
{
if (_ActiveTabString != value)
{
_ActiveTabString = value;
RaisePropertyChanged("ActiveTabString");
}
}
}
private int _ActiveTabInt;
public int ActiveTabInt
{
get { return _ActiveTabInt; }
set
{
if (_ActiveTabInt != value)
{
_ActiveTabInt = value;
RaisePropertyChanged("ActiveTabInt");
}
}
}
#region INotifyPropertyChanged implementation
public event PropertyChangedEventHandler PropertyChanged;
public void RaisePropertyChanged(string propertyName)
{
if (PropertyChanged != null)
PropertyChanged(this, new PropertyChangedEventArgs(propertyName));
}
#endregion
private void Button_Click(object sender, RoutedEventArgs e)
{
ActiveTabString = (ActiveTabString == "zero") ? "one" : "zero";
}
}
public class MyControl : Control
{
public static List<string> Indexmap = new List<string>(new string[] { "zero", "one" });
public string ActiveTabString
{
get { return (string)GetValue(ActiveTabStringProperty); }
set { SetValue(ActiveTabStringProperty, value); }
}
public static readonly DependencyProperty ActiveTabStringProperty = DependencyProperty.Register(
"ActiveTabString",
typeof(string),
typeof(MyControl), new FrameworkPropertyMetadata(
null,
FrameworkPropertyMetadataOptions.BindsTwoWayByDefault,
ActiveTabStringChanged));
public int ActiveTabInt
{
get { return (int)GetValue(ActiveTabIntProperty); }
set { SetValue(ActiveTabIntProperty, value); }
}
public static readonly DependencyProperty ActiveTabIntProperty = DependencyProperty.Register(
"ActiveTabInt",
typeof(Int32),
typeof(MyControl), new FrameworkPropertyMetadata(
new Int32(),
FrameworkPropertyMetadataOptions.BindsTwoWayByDefault));
static MyControl()
{
DefaultStyleKeyProperty.OverrideMetadata(typeof(MyControl), new FrameworkPropertyMetadata(typeof(MyControl)));
}
public override void OnApplyTemplate()
{
base.OnApplyTemplate();
}
private static void ActiveTabStringChanged(DependencyObject sender, DependencyPropertyChangedEventArgs e)
{
MyControl thiscontrol = sender as MyControl;
if (Indexmap[thiscontrol.ActiveTabInt] != thiscontrol.ActiveTabString)
thiscontrol.ActiveTabInt = Indexmap.IndexOf(e.NewValue.ToString());
}
}
MainWindow.xaml
<StackPanel Orientation="Vertical">
<Button Content="Change Tab Index" Click="Button_Click" Width="110" Height="30"></Button>
<local:MyControl x:Name="myControl" ActiveTabInt="{Binding ActiveTabInt, Mode=TwoWay}" ActiveTabString="{Binding ActiveTabString}"></local:MyControl>
</StackPanel>
App.xaml
<Style TargetType="local:MyControl">
<Setter Property="Template">
<Setter.Value>
<ControlTemplate TargetType="local:MyControl">
<TabControl SelectedIndex="{Binding ActiveTabInt, Mode=TwoWay}">
<TabItem Header="Tab Zero">
<TextBlock Text="{Binding ActiveTabInt}"></TextBlock>
</TabItem>
<TabItem Header="Tab One">
<TextBlock Text="{Binding ActiveTabInt}"></TextBlock>
</TabItem>
</TabControl>
</ControlTemplate>
</Setter.Value>
</Setter>
</Style>
Here is some code that I recently wrote. I think that it provides a basic explanation of combining class/ID names with pseudoclasses.
.content {_x000D_
width: 800px;_x000D_
border: 1px solid black;_x000D_
border-radius: 10px;_x000D_
box-shadow: 0 0 5px 2px grey;_x000D_
margin: 30px auto 20px auto;_x000D_
/*height:200px;*/_x000D_
_x000D_
}_x000D_
p.red {_x000D_
color: red;_x000D_
}_x000D_
p.blue {_x000D_
color: blue;_x000D_
}_x000D_
p#orange {_x000D_
color: orange;_x000D_
}_x000D_
p#green {_x000D_
color: green;_x000D_
}
_x000D_
<!DOCTYPE html>_x000D_
<html>_x000D_
_x000D_
<head>_x000D_
<title>Class practice</title>_x000D_
<link href="wrench_favicon.ico" rel="icon" type="image/x-icon" />_x000D_
</head>_x000D_
_x000D_
<body>_x000D_
<div class="content">_x000D_
<p id="orange">orange</p>_x000D_
<p id="green">green</p>_x000D_
<p class="red">red</p>_x000D_
<p class="blue">blue</p>_x000D_
</div>_x000D_
</body>_x000D_
_x000D_
</html>
_x000D_
There are four ways to create a singleton in Java.
Eager initialization singleton
public class Test {
private static final Test test = new Test();
private Test() {
}
public static Test getTest() {
return test;
}
}
Lazy initialization singleton (thread safe)
public class Test {
private static volatile Test test;
private Test() {
}
public static Test getTest() {
if(test == null) {
synchronized(Test.class) {
if(test == null) {
test = new Test();
}
}
}
return test;
}
}
Bill Pugh singleton with holder pattern (preferably the best one)
public class Test {
private Test() {
}
private static class TestHolder {
private static final Test test = new Test();
}
public static Test getInstance() {
return TestHolder.test;
}
}
Enum singleton
public enum MySingleton {
INSTANCE;
private MySingleton() {
System.out.println("Here");
}
}
I would use the get_cmap method. Ex.:
import matplotlib.pyplot as plt
plt.imshow(matrix, cmap=plt.get_cmap('gray'))
For me enclosing the credentials in quotes did the trick
DB_CONNECTION=mysql
DB_HOST=localhost
DB_PORT=3306
DB_DATABASE='zzz'
DB_USERNAME='yyy'
DB_PASSWORD='XXX'
Personally, to deal with empty responses, I use in my Integration Tests the MockMvcResponse object like this :
MockMvcResponse response = RestAssuredMockMvc.given()
.webAppContextSetup(webApplicationContext)
.when()
.get("/v1/ticket");
assertThat(response.mockHttpServletResponse().getStatus()).isEqualTo(HttpStatus.NO_CONTENT.value());
and in my controller I return empty response in a specific case like this :
return ResponseEntity.noContent().build();
This may not be exactly on target because I am not completely clear on what you want to do. However, assuming you mean you want to assign a different class to a div in response to an event, the answer is yes, you can certainly do this with jQuery. I am only a jQuery beginner, but I have used the following in my code:
$(document).ready(function() {
$("#someElementID").click(function() { // this is your event
$("#divID").addClass("second"); // here your adding the new class
)};
)};
If you wanted to replace the first class with the second class, I believe you would use removeClass first and then addClass as I did above. toggleClass may also be worth a look. The jQuery documentation is well written for these type of changes, with examples.
Someone else my have a better option, but I hope that helps!
The -Xmx option changes the maximum Heap Space for the VM. java -Xmx1024m means that the VM can allocate a maximum of 1024 MB. In layman terms this means that the application can use a maximum of 1024MB of memory.
ASP.Net Web API has Authorization Server build-in already. You can see it inside Startup.cs when you create a new ASP.Net Web Application with Web API template.
OAuthOptions = new OAuthAuthorizationServerOptions
{
TokenEndpointPath = new PathString("/Token"),
Provider = new ApplicationOAuthProvider(PublicClientId),
AuthorizeEndpointPath = new PathString("/api/Account/ExternalLogin"),
AccessTokenExpireTimeSpan = TimeSpan.FromDays(14),
// In production mode set AllowInsecureHttp = false
AllowInsecureHttp = true
};
All you have to do is to post URL encoded username and password inside query string.
/Token/userName=johndoe%40example.com&password=1234&grant_type=password
If you want to know more detail, you can watch User Registration and Login - Angular Front to Back with Web API by Deborah Kurata.
If you give the following command you'll get the list of activities including commits, merges.
git reflog
Your last commit should probably be at 'HEAD@{0}'
. You can check the same with your commit message.
To go to that point, use the command
git reset --hard 'HEAD@{0}'
Your merge will be reverted. If in case you have new files left, discard those changes from the merge.
You have to validate the connection.
If you use Oracle it is likely that you use Oracle´s Universal Connection Pool. The following assumes that you do so.
The easiest way to validate the connection is to tell Oracle that the connection must be validated while borrowing it. This can be done with
pool.setValidateConnectionOnBorrow(true);
But it works only if you hold the connection for a short period. If you borrow the connection for a longer time, it is likely that the connection gets broken while you hold it. In that case you have to validate the connection explicitly with
if (connection == null || !((ValidConnection) connection).isValid())
See the Oracle documentation for further details.
Note: The answer below is written from the perspective of Windows PowerShell.
However, it applies to the cross-platform PowerShell Core edition (v6+) as well, except that the latter - commendably - consistently defaults to BOM-less UTF-8 character encoding, which is the most widely compatible one across platforms and cultures..
To complement bigtv's helpful answer helpful answer with a more concise alternative and background information:
# > $file is effectively the same as | Out-File $file
# Objects are written the same way they display in the console.
# Default character encoding is UTF-16LE (mostly 2 bytes per char.), with BOM.
# Use Out-File -Encoding <name> to change the encoding.
$env:computername > $file
# Set-Content calls .ToString() on each object to output.
# Default character encoding is "ANSI" (culture-specific, single-byte).
# Use Set-Content -Encoding <name> to change the encoding.
# Use Set-Content rather than Add-Content; the latter is for *appending* to a file.
$env:computername | Set-Content $file
When outputting to a text file, you have 2 fundamental choices that use different object representations and, in Windows PowerShell (as opposed to PowerShell Core), also employ different default character encodings:
Out-File
(or >
) / Out-File -Append
(or >>
):
Suitable for output objects of any type, because PowerShell's default output formatting is applied to the output objects.
The default encoding, which can be changed with the -Encoding
parameter, is Unicode
, which is UTF-16LE in which most characters are encoded as 2 bytes. The advantage of a Unicode encoding such as UTF-16LE is that it is a global alphabet, capable of encoding all characters from all human languages.
>
and >>
, via the $PSDefaultParameterValues
preference variable, taking advantage of the fact that >
and >>
are now effectively aliases of Out-File
and Out-File -Append
. To change to UTF-8, for instance, use:$PSDefaultParameterValues['Out-File:Encoding']='UTF8'
For writing strings and instances of types known to have meaningful string representations, such as the .NET primitive data types (Booleans, integers, ...).
.psobject.ToString()
method is called on each output object, which results in meaningless representations for types that don't explicitly implement a meaningful representation; [hashtable]
instances are an example:@{ one = 1 } | Set-Content t.txt
writes literal System.Collections.Hashtable
to t.txt
, which is the result of @{ one = 1 }.ToString()
.The default encoding, which can be changed with the -Encoding
parameter, is Default
, which is the system's "ANSI" code page, a the single-byte culture-specific legacy encoding for non-Unicode applications, most commonly Windows-1252.
Note that the documentation currently incorrectly claims that ASCII is the default encoding.
Note that Add-Content
's purpose is to append content to an existing file, and it is only equivalent to Set-Content
if the target file doesn't exist yet.
Furthermore, the default or specified encoding is blindly applied, irrespective of the file's existing contents' encoding.
Out-File
/ >
/ Set-Content
/ Add-Content
all act culture-sensitively, i.e., they produce representations suitable for the current culture (locale), if available (though custom formatting data is free to define its own, culture-invariant representation - see Get-Help about_format.ps1xml
).
This contrasts with PowerShell's string expansion (string interpolation in double-quoted strings), which is culture-invariant - see this answer of mine.
As for performance: Since Set-Content
doesn't have to apply default formatting to its input, it performs better.
As for the OP's symptom with Add-Content
:
Since $env:COMPUTERNAME
cannot contain non-ASCII characters, Add-Content
's output, using "ANSI" encoding, should not result in ?
characters in the output, and the likeliest explanation is that the ?
were part of the preexisting content in output file $file
, which Add-Content
appended to.
I think a very simple way would be to use the Counter class. You can then use the most_common() function of the Counter instance as mentioned here.
For 1-d arrays:
import numpy as np
from collections import Counter
nparr = np.arange(10)
nparr[2] = 6
nparr[3] = 6 #6 is now the mode
mode = Counter(nparr).most_common(1)
# mode will be [(6,3)] to give the count of the most occurring value, so ->
print(mode[0][0])
For multiple dimensional arrays (little difference):
import numpy as np
from collections import Counter
nparr = np.arange(10)
nparr[2] = 6
nparr[3] = 6
nparr = nparr.reshape((10,2,5)) #same thing but we add this to reshape into ndarray
mode = Counter(nparr.flatten()).most_common(1) # just use .flatten() method
# mode will be [(6,3)] to give the count of the most occurring value, so ->
print(mode[0][0])
This may or may not be an efficient implementation, but it is convenient.
Also, would I be right in concluding that a list comprehension is the most efficient way to do this?
Maybe. List comprehensions are not inherently computationally efficient. It is still running in linear time.
From my personal experience: I have significantly reduced computation time when dealing with large data sets by replacing list comprehensions (specifically nested ones) with for-loop/list-appending type structures you have above. In this application I doubt you will notice a difference.
There are two things that could be happening:
READ_EXTERNAL_STORAGE
permission to your AndroidManifest.xml
explained for g++ here, though it is part of C99 so should work for everyone
http://www.delorie.com/gnu/docs/gcc/gcc_44.html
quick example:
#define debug(format, args...) fprintf (stderr, format, args)
My ls sorts by name by default. What are you seeing?
man ls
states:
List information about the FILEs (the current directory by default). Sort entries alpha-betically if none of -cftuvSUX nor --sort is specified.
:
This will Helpfull.Easy to implement,100% tested.
for(int i=1;i<linecount;i++)
{
progressBar1.Value = i * progressBar1.Maximum / linecount; //show process bar counts
LabelTotal.Text = i.ToString() + " of " + linecount; //show number of count in lable
int presentage = (i * 100) / linecount;
LabelPresentage.Text = presentage.ToString() + " %"; //show precentage in lable
Application.DoEvents(); keep form active in every loop
}
Here is what i can suggest. Use another variable to derive the if clause and assign it to num1.
Code:
num2 =20 if someBoolValue else num1
num1=num2
var temp1 = "";
var temp2 = "";
var str1 = fd;
var str2 = td;
var dt1 = str1.substring(0,2);
var dt2 = str2.substring(0,2);
var mon1 = str1.substring(3,5);
var mon2 = str2.substring(3,5);
var yr1 = str1.substring(6,10);
var yr2 = str2.substring(6,10);
temp1 = mon1 + "/" + dt1 + "/" + yr1;
temp2 = mon2 + "/" + dt2 + "/" + yr2;
var cfd = Date.parse(temp1);
var ctd = Date.parse(temp2);
var date1 = new Date(cfd);
var date2 = new Date(ctd);
if(date1 > date2) {
alert("FROM DATE SHOULD BE MORE THAN TO DATE");
}
There's also the TR1/C++11/C++17 way (see it Live on Coliru):
const std::string s[3] = { "1"s, "2"s, "3"s };
constexpr auto n = std::extent< decltype(s) >::value; // From <type_traits>
constexpr auto n2 = std::extent_v< decltype(s) >; // C++17 shorthand
const auto a = std::array{ "1"s, "2"s, "3"s }; // C++17 class template arg deduction -- http://en.cppreference.com/w/cpp/language/class_template_argument_deduction
constexpr auto size = std::tuple_size_v< decltype(a) >;
std::cout << n << " " << n2 << " " << size << "\n"; // Prints 3 3 3
$.ajax({
url:href,
type:'get',
success: function(data){
console.log($(data));
}
});
This console log gets an array like object: [meta, title, ,], very strange
You can use JavaScript:
var doc = document.documentElement.cloneNode()
doc.innerHTML = data
$content = $(doc.querySelector('#content'))
Yaml and Json are the simplest and most commonly used file formats to store settings/config. PyYaml can be used to parse yaml. Json is already part of python from 2.5. Yaml is a superset of Json. Json will solve most uses cases except multi line strings where escaping is required. Yaml takes care of these cases too.
>>> import json
>>> config = {'handler' : 'adminhandler.py', 'timeoutsec' : 5 }
>>> json.dump(config, open('/tmp/config.json', 'w'))
>>> json.load(open('/tmp/config.json'))
{u'handler': u'adminhandler.py', u'timeoutsec': 5}
I use my local ip for that i.e. 192.168.0.1 and it works.
I know that its bit old Q but if u get here by searching a solution so i got a nice one via jquery
jQuery('a[target^="_new"]').click(function() {
var width = window.innerWidth * 0.66 ;
// define the height in
var height = width * window.innerHeight / window.innerWidth ;
// Ratio the hight to the width as the user screen ratio
window.open(this.href , 'newwindow', 'width=' + width + ', height=' + height + ', top=' + ((window.innerHeight - height) / 2) + ', left=' + ((window.innerWidth - width) / 2));
});
it will open all the <a target="_new">
in a new window
EDIT:
1st, I did some little changes in the original code now it open the new window perfectly followed the user screen ratio (for landscape desktops)
but, I would like to recommend you to use the following code that open the link in new tab if you in mobile (thanks to zvona answer in other question):
jQuery('a[target^="_new"]').click(function() {
return openWindow(this.href);
}
function openWindow(url) {
if (window.innerWidth <= 640) {
// if width is smaller then 640px, create a temporary a elm that will open the link in new tab
var a = document.createElement('a');
a.setAttribute("href", url);
a.setAttribute("target", "_blank");
var dispatch = document.createEvent("HTMLEvents");
dispatch.initEvent("click", true, true);
a.dispatchEvent(dispatch);
}
else {
var width = window.innerWidth * 0.66 ;
// define the height in
var height = width * window.innerHeight / window.innerWidth ;
// Ratio the hight to the width as the user screen ratio
window.open(url , 'newwindow', 'width=' + width + ', height=' + height + ', top=' + ((window.innerHeight - height) / 2) + ', left=' + ((window.innerWidth - width) / 2));
}
return false;
}
On windows 10 run cmd.exe with admin rights then type :
1) cd \Python27\scripts
2) pip install requests
It should work. My case was with python 2.7
Node_modules contains user-installed packages so change the directory to node_modules and list the items. Core Modules are defined in node's source in the lib/
folder.
Example:
example@example:~/:~/node_modules$ ls
express maxmind-native node-whois socket.io ua-parser-js
geoip mongoskin pdfkit tail zeromq
maxmind nodemailer request ua-parser zmq
Consider a solution that will neatly handle arbitrarily many tables.
//ASSUMPTION: All tables must have the same columns
var tables = new List<DataTable>();
tables.Add(oneTableToRuleThemAll);
tables.Add(oneTableToFindThem);
tables.Add(oneTableToBringThemAll);
tables.Add(andInTheDarknessBindThem);
//Or in the real world, you might be getting a collection of tables from some abstracted data source.
//behold, a table too great and terrible to imagine
var theOneTable = tables.SelectMany(dt => dt.AsEnumerable()).CopyToDataTable();
Encapsulated into a helper for future reuse:
public static DataTable CombineDataTables(params DataTable[] args)
{
return args.SelectMany(dt => dt.AsEnumerable()).CopyToDataTable();
}
Just have a few tables declared in code?
var combined = CombineDataTables(dt1,dt2,dt3);
Want to combine into one of the existing tables instead of creating a new one?
dt1 = CombineDataTables(dt1,dt2,dt3);
Already have a collection of tables, instead of declared one by one?
//Pretend variable tables already exists
var tables = new[] { dt1, dt2, dt3 };
var combined = CombineDataTables(tables);
EDIT: I wrote a Python script for this.
As your objective is blurring (for privacy protection), you basically need a high recall detector as a first step. Here's how to go about doing this. The included code hints use OpenCV with Python.
Apply Gaussian Blur.
img = cv2.imread('input.jpg',1)
img_gray = cv2.cvtColor(img, cv2.COLOR_BGR2GRAY)
img_gray = cv2.GaussianBlur(img_gray, (5,5), 0)
Let the input image be the following.
Threshold the resultant image using strict threshold or OTSU's binarization.
cv2.Sobel(image, -1, 1, 0)
cv2.threshold()
Apply a Morphological Closing operation using suitable structuring element. (I used 16x4 as structuring element)
se = cv2.getStructuringElement(cv2.MORPH_RECT,(16,4))
cv2.morphologyEx(image, cv2.MORPH_CLOSE, se)
Resultant Image after Step 5.
Find external contours of this image.
cv2.findContours(image, cv2.RETR_EXTERNAL, cv2.CHAIN_APPROX_NONE)
For each contour, find the minAreaRect()
bounding it.
All minAreaRect()
s are shown in orange and the one which satisfies our criteria is in green.
You can apply other filters you deem suitable to increase recall and precision. The detection can also be trained using HOG+SVM to increase precision.
length of string ==how many bits that string having, size==size of those bits, In strings both are same if the editor allocates size of character is 1 byte
when I use the function
select dbo.decode(10>1 ,'yes' ,'no')
then say syntax error near '>'
Unfortunately, that does not get you around having the CASE clause in the SQL, since you would need it to convert the logical expression to a bit parameter to match the type of the first function argument:
create function decode(@var1 as bit, @var2 as nvarchar(100), @var3 as nvarchar(100))
returns nvarchar(100)
begin
return case when @var1 = 1 then @var2 else @var3 end;
end;
select dbo.decode(case when 10 > 1 then 1 else 0 end, 'Yes', 'No');
Here's a pure-numpy implementation. It's about 5× faster than using itertools.
import numpy as np
def cartesian(arrays, out=None):
"""
Generate a cartesian product of input arrays.
Parameters
----------
arrays : list of array-like
1-D arrays to form the cartesian product of.
out : ndarray
Array to place the cartesian product in.
Returns
-------
out : ndarray
2-D array of shape (M, len(arrays)) containing cartesian products
formed of input arrays.
Examples
--------
>>> cartesian(([1, 2, 3], [4, 5], [6, 7]))
array([[1, 4, 6],
[1, 4, 7],
[1, 5, 6],
[1, 5, 7],
[2, 4, 6],
[2, 4, 7],
[2, 5, 6],
[2, 5, 7],
[3, 4, 6],
[3, 4, 7],
[3, 5, 6],
[3, 5, 7]])
"""
arrays = [np.asarray(x) for x in arrays]
dtype = arrays[0].dtype
n = np.prod([x.size for x in arrays])
if out is None:
out = np.zeros([n, len(arrays)], dtype=dtype)
m = n / arrays[0].size
out[:,0] = np.repeat(arrays[0], m)
if arrays[1:]:
cartesian(arrays[1:], out=out[0:m, 1:])
for j in xrange(1, arrays[0].size):
out[j*m:(j+1)*m, 1:] = out[0:m, 1:]
return out