I ended up changing how the MasterType is referenced in the page mark up.
I changed: <%@ MasterType VirtualPath="~/x/y/MyMaster.Master" %>
to <%@ MasterType TypeName="FullyQualifiedNamespace.MyMaster" %>
See here for details.
Hope this helps someone out.
If you are Using HTML5 you can add the attribute 'download' to your links.
<a href="/test.pdf" download>
Here you got complementaries discussions about the topic, it can be interesting.
Check the column collation. This script might change the collation to the table default. Add the current collation to the script.
Typing sp_helpserver
will give you a list. As others have noted, there are multiple ways, some with alias' and such. This stored proc may return multiple lines but could get you closer to your answer.
You can set the Hadoop home directory by sending a -Dhadoop.home.dir to the VM. To send this parameters to all your application that you execute inside eclipse, you can set them in Window->Preferences->Java->Installed JREs-> (select your JRE installation) -> Edit.. -> (set the value in the "Default VM arguments:" textbox). You can replace ${HADOOP_HOME} with the path to your Hadoop installation.
UPDATE tbl_ClientNotes
SET ordering=@ordering, title=@title, content=@content
WHERE id=@id
AND @ordering IS NOT NULL
AND @title IS NOT NULL
AND @content IS NOT NULL
Or if you meant you only want to update individual columns you would use the post above mine. I read it as do not update if any values are null
You can compare for exactly the same type using:
class A {
}
var a = new A();
var typeOfa = a.GetType();
if (typeOfa == typeof(A)) {
}
typeof returns the Type object from a given class.
But if you have a type B, that inherits from A, then this comparison is false. And you are looking for IsAssignableFrom.
class B : A {
}
var b = new B();
var typeOfb = b.GetType();
if (typeOfb == typeof(A)) { // false
}
if (typeof(A).IsAssignableFrom(typeOfb)) { // true
}
Not the best way but it works
char* Trim(char* str)
{
int len = strlen(str);
char* buff = new char[len];
int i = 0;
memset(buff,0,len*sizeof(char));
do{
if(isspace(*str)) continue;
buff[i] = *str; ++i;
} while(*(++str) != '\0');
return buff;
}
When you first read the body, you have to store it so once you're done with it, you can set a new io.ReadCloser
as the request body constructed from the original data. So when you advance in the chain, the next handler can read the same body.
One option is to read the whole body using ioutil.ReadAll()
, which gives you the body as a byte slice.
You may use bytes.NewBuffer()
to obtain an io.Reader
from a byte slice.
The last missing piece is to make the io.Reader
an io.ReadCloser
, because bytes.Buffer
does not have a Close()
method. For this you may use ioutil.NopCloser()
which wraps an io.Reader
, and returns an io.ReadCloser
, whose added Close()
method will be a no-op (does nothing).
Note that you may even modify the contents of the byte slice you use to create the "new" body. You have full control over it.
Care must be taken though, as there might be other HTTP fields like content-length and checksums which may become invalid if you modify only the data. If subsequent handlers check those, you would also need to modify those too!
If you also want to read the response body, then you have to wrap the http.ResponseWriter
you get, and pass the wrapper on the chain. This wrapper may cache the data sent out, which you can inspect either after, on on-the-fly (as the subsequent handlers write to it).
Here's a simple ResponseWriter
wrapper, which just caches the data, so it'll be available after the subsequent handler returns:
type MyResponseWriter struct {
http.ResponseWriter
buf *bytes.Buffer
}
func (mrw *MyResponseWriter) Write(p []byte) (int, error) {
return mrw.buf.Write(p)
}
Note that MyResponseWriter.Write()
just writes the data to a buffer. You may also choose to inspect it on-the-fly (in the Write()
method) and write the data immediately to the wrapped / embedded ResponseWriter
. You may even modify the data. You have full control.
Care must be taken again though, as the subsequent handlers may also send HTTP response headers related to the response data –such as length or checksums– which may also become invalid if you alter the response data.
Putting the pieces together, here's a full working example:
func loginmw(handler http.Handler) http.Handler {
return http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
body, err := ioutil.ReadAll(r.Body)
if err != nil {
log.Printf("Error reading body: %v", err)
http.Error(w, "can't read body", http.StatusBadRequest)
return
}
// Work / inspect body. You may even modify it!
// And now set a new body, which will simulate the same data we read:
r.Body = ioutil.NopCloser(bytes.NewBuffer(body))
// Create a response wrapper:
mrw := &MyResponseWriter{
ResponseWriter: w,
buf: &bytes.Buffer{},
}
// Call next handler, passing the response wrapper:
handler.ServeHTTP(mrw, r)
// Now inspect response, and finally send it out:
// (You can also modify it before sending it out!)
if _, err := io.Copy(w, mrw.buf); err != nil {
log.Printf("Failed to send out response: %v", err)
}
})
}
Nothing compares to extjs in terms of community size and presence on StackOverflow. Despite previous controversy, Ext JS now has a GPLv3 open source license. Its learning curve is long, but it can be quite rewarding once learned. Ext JS lacks a Material Design theme, and the team has repeatedly refused to release the source code on GitHub. For mobile, one must use the separate Sencha Touch library.
Have in mind also that,
large JavaScript libraries, such as YUI, have been receiving less attention from the community. Many developers today look at large JavaScript libraries as walled gardens they don’t want to be locked into.
-- Announcement of YUI development being ceased
That said, below are a number of Ext JS alternatives currently available.
Blueprint is a React-based UI toolkit developed by big data analytics company Palantir in TypeScript, and "optimized for building complex data-dense interfaces for desktop applications". Actively developed on GitHub as of May 2019, with comprehensive documentation. Components range from simple (chips, toast, icons) to complex (tree, data table, tag input with autocomplete, date range picker. No accordion or resizer.
Blueprint targets modern browsers (Chrome, Firefox, Safari, IE 11, and Microsoft Edge) and is licensed under a modified Apache license.
Sandbox / demo • GitHub • Docs
Webix - an advanced, easy to learn, mobile-friendly, responsive and rich free&open source JavaScript UI components library. Webix spun off from DHTMLX Touch (a project with 8 years of development behind it - see below) and went on to become a standalone UI components framework. The GPL3 edition allows commercial use and lets non-GPL applications using Webix keep their license, e.g. MIT, via a license exemption for FLOSS. Webix has 55 UI widgets, including trees, grids, treegrids and charts. Funding comes from a commercial edition with some advanced widgets (Pivot, Scheduler, Kanban, org chart etc.). Webix has an extensive list of free and commercial widgets, and integrates with most popular frameworks (React, Vue, Meteor, etc) and UI components.
Skins look modern, and include a Material Design theme. The Touch theme also looks quite Material Design-ish. See also the Skin Builder.
Minimal GitHub presence, but includes the library code, and the documentation (which still needs major improvements). Webix suffers from a having a small team and a lack of marketing. However, they have been responsive to user feedback, both on GitHub and on their forum.
The library was lean (128Kb gzip+minified for all 55 widgets as of ~2015), faster than ExtJS, dojo and others, and the design is pleasant-looking. The current version of Webix (v6, as of Nov 2018) got heavier (400 - 676kB minified but NOT gzipped).
The demos on Webix.com look and function great. The developer, XB Software, uses Webix in solutions they build for paying customers, so there's likely a good, funded future ahead of it.
Webix aims for backwards compatibility down to IE8, and as a result carries some technical debt.
Wikipedia • GitHub • Playground/sandbox • Admin dashboard demo • Demos • Widget samples
react-md - MIT-licensed Material Design UI components library for React. Responsive, accessible. Implements components from simple (buttons, cards) to complex (sortable tables, autocomplete, tags input, calendars). One lead author, ~1900 GitHub stars.
kendo - jQuery-based UI toolkit with 40+ basic open-source widgets, plus commercial professional widgets (grids, trees, charts etc.). Responsive&mobile support. Works with Bootstrap and AngularJS. Modern, with Material Design themes. The documentation is available on GitHub, which has enabled numerous contributions from users (4500+ commits, 500+ PRs as of Jan 2015).
Well-supported commercially, claiming millions of developers, and part of a large family of developer tools. Telerik has received many accolades, is a multi-national company (Bulgaria, US), was acquired by Progress Software, and is a thought leader.
A Kendo UI Professional developer license costs $700 and posting access to most forums is conditioned upon having a license or being in the trial period.
[Wikipedia] • GitHub/Telerik • Demos • Playground • Tools
OpenUI5 - jQuery-based UI framework with 180 widgets, Apache 2.0-licensed and fully-open sourced and funded by German software giant SAP SE.
The community is much larger than that of Webix, SAP is hiring developers to grow OpenUI5, and they presented OpenUI5 at OSCON 2014.
The desktop themes are rather lackluster, but the Fiori design for web and mobile looks clean and neat.
Wikipedia • GitHub • Mobile-first controls demos • Desktop controls demos • SO
DHTMLX - JavaScript library for building rich Web and Mobile apps. Looks most like ExtJS - check the demos. Has been developed since 2005 but still looks modern. All components except TreeGrid are available under GPLv2 but advanced features for many components are only available in the commercial PRO edition - see for example the tree. Claims to be used by many Fortune 500 companies.
Minimal presence on GitHub (the main library code is missing) and StackOverflow but active forum. The documentation is not available on GitHub, which makes it difficult to improve by the community.
Polymer, a Web Components polyfill, plus Polymer Paper, Google's implementation of the Material design. Aimed at web and mobile apps. Doesn't have advanced widgets like trees or even grids but the controls it provides are mobile-first and responsive. Used by many big players, e.g. IBM or USA Today.
Ant Design claims it is "a design language for background applications", influenced by "nature" and helping designers "create low-entropy atmosphere for developer team". That's probably a poor translation from Chinese for "UI components for enterprise web applications". It's a React UI library written in TypeScript, with many components, from simple (buttons, cards) to advanced (autocomplete, calendar, tag input, table).
The project was born in China, is popular with Chinese companies, and parts of the documentation are available only in Chinese. Quite popular on GitHub, yet it makes the mistake of splitting the community into Chinese and English chat rooms. The design looks Material-ish, but fonts are small and the information looks lost in a see of whitespace.
PrimeUI - collection of 45+ rich widgets based on jQuery UI. Apache 2.0 license. Small GitHub community. 35 premium themes available.
qooxdoo - "a universal JavaScript framework with a coherent set of individual components", developed and funded by German hosting provider 1&1 (see the contributors, one of the world's largest hosting companies. GPL/EPL (a business-friendly license).
Mobile themes look modern but desktop themes look old (gradients).
Wikipedia • GitHub • Web/Mobile/Desktop demos • Widgets Demo browser • Widget browser • SO • Playground • Community
jQuery UI - easy to pick up; looks a bit dated; lacks advanced widgets. Of course, you can combine it with independent widgets for particular needs, e.g. trees or other UI components, but the same can be said for any other framework.
angular + Angular UI. While Angular is backed by Google, it's being radically revamped in the upcoming 2.0 version, and "users will need to get to grips with a new kind of architecture. It's also been confirmed that there will be no migration path from Angular 1.X to 2.0". Moreover, the consensus seems to be that Angular 2 won't really be ready for use until a year or two from now. Angular UI has relatively few widgets (no trees, for example).
DojoToolkit and their powerful Dijit set of widgets. Completely open-sourced and actively developed on GitHub, but development is now (Nov 2018) focused on the new dojo.io framework, which has very few basic widgets. BSD/AFL license. Development started in 2004 and the Dojo Foundation is being sponsored by IBM, Google, and others - see Wikipedia. 7500 questions here on SO.
Themes look desktop-oriented and dated - see the theme tester in dijit. The official theme previewer is broken and only shows "Claro". A Bootstrap theme exists, which looks a lot like Bootstrap, but doesn't use Bootstrap classes. In Jan 2015, I started a thread on building a Material Design theme for Dojo, which got quite popular within the first hours. However, there are questions regarding building that theme for the current Dojo 1.10 vs. the next Dojo 2.0. The response to that thread shows an active and wide community, covering many time zones.
Unfortunately, Dojo has fallen out of popularity and fewer companies appear to use it, despite having (had?) a strong foothold in the enterprise world. In 2009-2012, its learning curve was steep and the documentation needed improvements; while the documentation has substantially improved, it's unclear how easy it is to pick up Dojo nowadays.
With a Material Design theme, Dojo (2.0?) might be the killer UI components framework.
Enyo - front-end library aimed at mobile and TV apps (e.g. large touch-friendly controls). Developed by LG Electronix and Apache-licensed on GitHub.
The radical Cappuccino - Objective-J (a superset of JavaScript) instead of HTML+CSS+DOM
Mochaui, MooTools UI Library User Interface Library. <300 GitHub stars.
CrossUI - cross-browser JS framework to develop and package the exactly same code and UI into Web Apps, Native Desktop Apps (Windows, OS X, Linux) and Mobile Apps (iOS, Android, Windows Phone, BlackBerry). Open sourced LGPL3. Featured RAD tool (form builder etc.). The UI looks desktop-, not web-oriented. Actively developed, small community. No presence on GitHub.
ZinoUI - simple widgets. The DataTable, for instance, doesn't even support sorting.
Wijmo - good-looking commercial widgets, with old (jQuery UI) widgets open-sourced on GitHub (their development stopped in 2013). Developed by ComponentOne, a division of GrapeCity. See Wijmo Complete vs. Open.
CxJS - commercial JS framework based on React, Babel and webpack offering form elements, form validation, advanced grid control, navigational elements, tooltips, overlays, charts, routing, layout support, themes, culture dependent formatting and more.
Widgets - Demo Apps - Examples - GitHub
SproutCore - developed by Apple for web applications with native performance, handling large data sets on the client. Powers iCloud.com. Not intended for widgets.
Wakanda: aimed at business/enterprise web apps - see What is Wakanda?. Architecture:
Wakanda Application Framework (datasource layer + browser-based interface widgets) that helps with browser and device compatibility across desktop and mobile
Wakanda is highly integrated, includes a ton of features out of the box, but has a very small GitHub community and SO presence.
Servoy - "a cross platform frontend development and deployment environment for SQL databases". Boasts a "full WYSIWIG (What You See Is What You Get) UI designer for HTML5 with built-in data-binding to back-end services", responsive design, support for HTML6 Web Components, Websockets and mobile platforms. Written in Java and generates JavaScript code using various JavaBeans.
SmartClient/SmartGWT - mobile and cross-browser HTML5 UI components combined with a Java server. Aimed at building powerful business apps - see demos.
Vaadin - full-stack Java/GWT + JavaScript/HTML3 web app framework
Backbase - portal software
Shiny - front-end library on top R, with visualization, layout and control widgets
ZKOSS: Java+jQuery+Bootstrap framework for building enterprise web and mobile apps.
These libraries don't implement complex widgets such as tables with sorting/filtering, autocompletes, or trees.
Foundation for Apps - responsive front-end framework on top of AngularJS; more of a grid/layout/navigation library
UI Kit - similar to Bootstrap, with fewer widgets, but with official off-canvas.
Using the canvas elements allows for complete control over the UI, and great cross-browser compatibility, but comes at the cost of missing native browser functionality, e.g. page search via Ctrl/Cmd+F.
typeof
is applied to a name of a type or generic type parameter known at compile time (given as identifier, not as string). GetType
is called on an object at runtime. In both cases the result is an object of the type System.Type
containing meta-information on a type.
Example where compile-time and run-time types are equal
string s = "hello";
Type t1 = typeof(string);
Type t2 = s.GetType();
t1 == t2 ==> true
Example where compile-time and run-time types are different
object obj = "hello";
Type t1 = typeof(object); // ==> object
Type t2 = obj.GetType(); // ==> string!
t1 == t2 ==> false
i.e., the compile time type (static type) of the variable obj
is not the same as the runtime type of the object referenced by obj
.
Testing types
If, however, you only want to know whether mycontrol
is a TextBox
then you can simply test
if (mycontrol is TextBox)
Note that this is not completely equivalent to
if (mycontrol.GetType() == typeof(TextBox))
because mycontrol
could have a type that is derived from TextBox
. In that case the first comparison yields true
and the second false
! The first and easier variant is OK in most cases, since a control derived from TextBox
inherits everything that TextBox
has, probably adds more to it and is therefore assignment compatible to TextBox
.
public class MySpecializedTextBox : TextBox
{
}
MySpecializedTextBox specialized = new MySpecializedTextBox();
if (specialized is TextBox) ==> true
if (specialized.GetType() == typeof(TextBox)) ==> false
Casting
If you have the following test followed by a cast and T is nullable ...
if (obj is T) {
T x = (T)obj; // The casting tests, whether obj is T again!
...
}
... you can change it to ...
T x = obj as T;
if (x != null) {
...
}
Testing whether a value is of a given type and casting (which involves this same test again) can both be time consuming for long inheritance chains. Using the as
operator followed by a test for null
is more performing.
Starting with C# 7.0 you can simplify the code by using pattern matching:
if (obj is T t) {
// t is a variable of type T having a non-null value.
...
}
Btw.: this works for value types as well. Very handy for testing and unboxing. Note that you cannot test for nullable value types:
if (o is int? ni) ===> does NOT compile!
This is because either the value is null
or it is an int
. This works for int? o
as well as for object o = new Nullable<int>(x);
:
if (o is int i) ===> OK!
I like it, because it eliminates the need to access the Nullable<T>.Value
property.
import curses
stdscr = curses.initscr()
stdscr.clear()
That can be achieve in plain LaTeX without any specific package.
\documentclass{article}
\begin{document}
This is your only binary choices
\begin{math}
\left\{
\begin{array}{l}
0\\
1
\end{array}
\right.
\end{math}
\end{document}
This code produces something which looks what you seems to need.
The same example as in the @Tombart can be obtained with similar code.
\documentclass{article}
\begin{document}
\begin{math}
f(x)=\left\{
\begin{array}{ll}
1, & \mbox{if $x<0$}.\\
0, & \mbox{otherwise}.
\end{array}
\right.
\end{math}
\end{document}
This code produces very similar results.
To fix this, use USB2 instead of USB3
You can try : go to edit>preferencec>type.. select type > choose text engine options select east asian. Restart photoshop. Create new peroject. Try text tool again.
(if you want to use your project created with other text engine type) copy /paste all layers to new project.
Having included a dependency on spring-boot-configuration-processor
in build.gradle
:
annotationProcessor "org.springframework.boot:spring-boot-configuration-processor:2.4.1"
the only thing that worked for me, besides invalidating caches of IntelliJ and restarting, is
Reload All Gradle Projects
Clean
Build
A method group is the name for a set of methods (that might be just one) - i.e. in theory the ToString
method may have multiple overloads (plus any extension methods): ToString()
, ToString(string format)
, etc - hence ToString
by itself is a "method group".
It can usually convert a method group to a (typed) delegate by using overload resolution - but not to a string etc; it doesn't make sense.
Once you add parentheses, again; overload resolution kicks in and you have unambiguously identified a method call.
Summarize other answers I found 11 main ways to do this (see below). And I wrote some performance tests (see results below):
Ways to convert an InputStream to a String:
Using IOUtils.toString
(Apache Utils)
String result = IOUtils.toString(inputStream, StandardCharsets.UTF_8);
Using CharStreams
(Guava)
String result = CharStreams.toString(new InputStreamReader(
inputStream, Charsets.UTF_8));
Using Scanner
(JDK)
Scanner s = new Scanner(inputStream).useDelimiter("\\A");
String result = s.hasNext() ? s.next() : "";
Using Stream API (Java 8). Warning: This solution converts different line breaks (like \r\n
) to \n
.
String result = new BufferedReader(new InputStreamReader(inputStream))
.lines().collect(Collectors.joining("\n"));
Using parallel Stream API (Java 8). Warning: This solution converts different line breaks (like \r\n
) to \n
.
String result = new BufferedReader(new InputStreamReader(inputStream))
.lines().parallel().collect(Collectors.joining("\n"));
Using InputStreamReader
and StringBuilder
(JDK)
int bufferSize = 1024;
char[] buffer = new char[bufferSize];
StringBuilder out = new StringBuilder();
Reader in = new InputStreamReader(stream, StandardCharsets.UTF_8);
for (int numRead; (numRead = in.read(buffer, 0, buffer.length)) > 0; ) {
out.append(buffer, 0, numRead);
}
return out.toString();
Using StringWriter
and IOUtils.copy
(Apache Commons)
StringWriter writer = new StringWriter();
IOUtils.copy(inputStream, writer, "UTF-8");
return writer.toString();
Using ByteArrayOutputStream
and inputStream.read
(JDK)
ByteArrayOutputStream result = new ByteArrayOutputStream();
byte[] buffer = new byte[1024];
for (int length; (length = inputStream.read(buffer)) != -1; ) {
result.write(buffer, 0, length);
}
// StandardCharsets.UTF_8.name() > JDK 7
return result.toString("UTF-8");
Using BufferedReader
(JDK). Warning: This solution converts different line breaks (like \n\r
) to line.separator
system property (for example, in Windows to "\r\n").
String newLine = System.getProperty("line.separator");
BufferedReader reader = new BufferedReader(
new InputStreamReader(inputStream));
StringBuilder result = new StringBuilder();
for (String line; (line = reader.readLine()) != null; ) {
if (result.length() > 0) {
result.append(newLine);
}
result.append(line);
}
return result.toString();
Using BufferedInputStream
and ByteArrayOutputStream
(JDK)
BufferedInputStream bis = new BufferedInputStream(inputStream);
ByteArrayOutputStream buf = new ByteArrayOutputStream();
for (int result = bis.read(); result != -1; result = bis.read()) {
buf.write((byte) result);
}
// StandardCharsets.UTF_8.name() > JDK 7
return buf.toString("UTF-8");
Using inputStream.read()
and StringBuilder
(JDK). Warning: This solution has problems with Unicode, for example with Russian text (works correctly only with non-Unicode text)
StringBuilder sb = new StringBuilder();
for (int ch; (ch = inputStream.read()) != -1; ) {
sb.append((char) ch);
}
return sb.toString();
Warning:
Solutions 4, 5 and 9 convert different line breaks to one.
Solution 11 can't work correctly with Unicode text
Performance tests
Performance tests for small String
(length = 175), url in github (mode = Average Time, system = Linux, score 1,343 is the best):
Benchmark Mode Cnt Score Error Units
8. ByteArrayOutputStream and read (JDK) avgt 10 1,343 ± 0,028 us/op
6. InputStreamReader and StringBuilder (JDK) avgt 10 6,980 ± 0,404 us/op
10. BufferedInputStream, ByteArrayOutputStream avgt 10 7,437 ± 0,735 us/op
11. InputStream.read() and StringBuilder (JDK) avgt 10 8,977 ± 0,328 us/op
7. StringWriter and IOUtils.copy (Apache) avgt 10 10,613 ± 0,599 us/op
1. IOUtils.toString (Apache Utils) avgt 10 10,605 ± 0,527 us/op
3. Scanner (JDK) avgt 10 12,083 ± 0,293 us/op
2. CharStreams (guava) avgt 10 12,999 ± 0,514 us/op
4. Stream Api (Java 8) avgt 10 15,811 ± 0,605 us/op
9. BufferedReader (JDK) avgt 10 16,038 ± 0,711 us/op
5. parallel Stream Api (Java 8) avgt 10 21,544 ± 0,583 us/op
Performance tests for big String
(length = 50100), url in github (mode = Average Time, system = Linux, score 200,715 is the best):
Benchmark Mode Cnt Score Error Units
8. ByteArrayOutputStream and read (JDK) avgt 10 200,715 ± 18,103 us/op
1. IOUtils.toString (Apache Utils) avgt 10 300,019 ± 8,751 us/op
6. InputStreamReader and StringBuilder (JDK) avgt 10 347,616 ± 130,348 us/op
7. StringWriter and IOUtils.copy (Apache) avgt 10 352,791 ± 105,337 us/op
2. CharStreams (guava) avgt 10 420,137 ± 59,877 us/op
9. BufferedReader (JDK) avgt 10 632,028 ± 17,002 us/op
5. parallel Stream Api (Java 8) avgt 10 662,999 ± 46,199 us/op
4. Stream Api (Java 8) avgt 10 701,269 ± 82,296 us/op
10. BufferedInputStream, ByteArrayOutputStream avgt 10 740,837 ± 5,613 us/op
3. Scanner (JDK) avgt 10 751,417 ± 62,026 us/op
11. InputStream.read() and StringBuilder (JDK) avgt 10 2919,350 ± 1101,942 us/op
Graphs (performance tests depending on Input Stream length in Windows 7 system)
Performance test (Average Time) depending on Input Stream length in Windows 7 system:
length 182 546 1092 3276 9828 29484 58968
test8 0.38 0.938 1.868 4.448 13.412 36.459 72.708
test4 2.362 3.609 5.573 12.769 40.74 81.415 159.864
test5 3.881 5.075 6.904 14.123 50.258 129.937 166.162
test9 2.237 3.493 5.422 11.977 45.98 89.336 177.39
test6 1.261 2.12 4.38 10.698 31.821 86.106 186.636
test7 1.601 2.391 3.646 8.367 38.196 110.221 211.016
test1 1.529 2.381 3.527 8.411 40.551 105.16 212.573
test3 3.035 3.934 8.606 20.858 61.571 118.744 235.428
test2 3.136 6.238 10.508 33.48 43.532 118.044 239.481
test10 1.593 4.736 7.527 20.557 59.856 162.907 323.147
test11 3.913 11.506 23.26 68.644 207.591 600.444 1211.545
Create an XML layout first in your project's res/layout/main.xml
folder:
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout
xmlns:android="http://schemas.android.com/apk/res/android"
android:orientation="vertical"
android:layout_width="fill_parent"
android:layout_height="fill_parent" >
<Button
android:id="@+id/addBtn"
android:text="Add New Item"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:onClick="addItems"/>
<ListView
android:id="@android:id/list"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:drawSelectorOnTop="false"
/>
</LinearLayout>
This is a simple layout with a button on the top and a list view on the bottom. Note that the ListView
has the id @android:id/list
which defines the default ListView
a ListActivity
can use.
public class ListViewDemo extends ListActivity {
//LIST OF ARRAY STRINGS WHICH WILL SERVE AS LIST ITEMS
ArrayList<String> listItems=new ArrayList<String>();
//DEFINING A STRING ADAPTER WHICH WILL HANDLE THE DATA OF THE LISTVIEW
ArrayAdapter<String> adapter;
//RECORDING HOW MANY TIMES THE BUTTON HAS BEEN CLICKED
int clickCounter=0;
@Override
public void onCreate(Bundle icicle) {
super.onCreate(icicle);
setContentView(R.layout.main);
adapter=new ArrayAdapter<String>(this,
android.R.layout.simple_list_item_1,
listItems);
setListAdapter(adapter);
}
//METHOD WHICH WILL HANDLE DYNAMIC INSERTION
public void addItems(View v) {
listItems.add("Clicked : "+clickCounter++);
adapter.notifyDataSetChanged();
}
}
android.R.layout.simple_list_item_1
is the default list item layout supplied by Android, and you can use this stock layout for non-complex things.
listItems
is a List which holds the data shown in the ListView. All the insertion and removal should be done on listItems
; the changes in listItems
should be reflected in the view. That's handled by ArrayAdapter<String> adapter
, which should be notified using:
adapter.notifyDataSetChanged();
An Adapter is instantiated with 3 parameters: the context, which could be your activity/listactivity
; the layout of your individual list item; and lastly, the list, which is the actual data to be displayed in the list.
npm prune [[<@scope>/]<pkg>...] [--production] [--dry-run] [--json]
This command removes "extraneous" packages. If a package name is provided, then only packages matching one of the supplied names are removed.
Extraneous packages are packages that are not listed on the parent package's dependencies list.
If the --production flag is specified or the NODE_ENV environment variable is set to production, this command will remove the packages specified in your devDependencies. Setting --no-production will negate NODE_ENV being set to production.
If the --dry-run flag is used then no changes will actually be made.
If the --json flag is used then the changes npm prune made (or would have made with --dry-run) are printed as a JSON object.
In normal operation with package-locks enabled, extraneous modules are pruned automatically when modules are installed and you'll only need this command with the --production flag.
If you've disabled package-locks then extraneous modules will not be removed and it's up to you to run npm prune from time-to-time to remove them.
npm dedupe
npm ddp
Searches the local package tree and attempts to simplify the overall structure by moving dependencies further up the tree, where they can be more effectively shared by multiple dependent packages.
For example, consider this dependency graph:
a
+-- b <-- depends on [email protected]
| `-- [email protected]
`-- d <-- depends on c@~1.0.9
`-- [email protected]
In this case, npm-dedupe will transform the tree to:
a
+-- b
+-- d
`-- [email protected]
Because of the hierarchical nature of node's module lookup, b and d will both get their dependency met by the single c package at the root level of the tree.
The deduplication algorithm walks the tree, moving each dependency as far up in the tree as possible, even if duplicates are not found. This will result in both a flat and deduplicated tree.
Install nmap,
sudo apt-get install nmap
then
nmap -sP 192.168.1.*
or more commonly
nmap -sn 192.168.1.0/24
will scan the entire .1 to .254 range
This does a simple ping scan in the entire subnet to see which hosts are online.
I use it for versioned types.
If you have a type versioned through a template such as MyType<version>
, you can write a function in which you can capture the version number:
template<template<uint8_t> T, uint8_t Version>
Foo(const T<Version>& obj)
{
assert(Version > 2 && "Versions older than 2 are no longer handled");
...
switch (Version)
{
...
}
}
So you can do different things depending on the version of the type being passed in instead of having an overload for each type.
You can also have conversion functions which take in MyType<Version>
and return MyType<Version+1>
, in a generic way, and even recurse them to have a ToNewest()
function which returns the latest version of a type from any older version (very useful for logs that might have been stored a while back but need to be processed with today's newest tool).
for those looking for a way to mock POST
HttpServletRequest with Json payload, the below is in Kotlin, but the key take away here is the DelegatingServetInputStream when you want to mock the request.getInputStream
from the HttpServletRequest
@Mock
private lateinit var request: HttpServletRequest
@Mock
private lateinit var response: HttpServletResponse
@Mock
private lateinit var chain: FilterChain
@InjectMocks
private lateinit var filter: ValidationFilter
@Test
fun `continue filter chain with valid json payload`() {
val payload = """{
"firstName":"aB",
"middleName":"asdadsa",
"lastName":"asdsada",
"dob":null,
"gender":"male"
}""".trimMargin()
whenever(request.requestURL).
thenReturn(StringBuffer("/profile/personal-details"))
whenever(request.method).
thenReturn("PUT")
whenever(request.inputStream).
thenReturn(DelegatingServletInputStream(ByteArrayInputStream(payload.toByteArray())))
filter.doFilter(request, response, chain)
verify(chain).doFilter(request, response)
}
Just move to the new branch. The uncommited changes get carried over.
git checkout -b ABC_1
git commit -m <message>
If you want your button to call the routine you have written in filename.js you have to edit filename.js so that the code you want to run is the body of a function. For you can call a function, not a source file. (A source file has no entry point)
If the current content of your filename.js is:
alert('Hello world');
_x000D_
you have to change it to:
function functionName(){_x000D_
alert('Hello world');_x000D_
}
_x000D_
Then you have to load filename.js in the header of your html page by the line:
<head>_x000D_
<script type="text/javascript" src="Public/Scripts/filename.js"></script>_x000D_
</head>
_x000D_
so that you can call the function contained in filename.js by your button:
<button onclick="functionName()">Call the function</button>
_x000D_
I have made a little working example. A simple HTML page asks the user to input her name, and when she clicks the button, the function inside Public/Scripts/filename.js is called passing the inserted string as a parameter so that a popup says "Hello, <insertedName>!".
Here is the calling HTML page:
<html>_x000D_
_x000D_
<head>_x000D_
<script type="text/javascript" src="Public/Scripts/filename.js"></script>_x000D_
</head>_x000D_
_x000D_
<body>_x000D_
What's your name? <input id="insertedName" />_x000D_
<button onclick="functionName(insertedName.value)">Say hello</button>_x000D_
</body>_x000D_
_x000D_
</html>
_x000D_
And here is Public/Scripts/filename.js
function functionName( s ){_x000D_
alert('Hello, ' + s + '!');_x000D_
}
_x000D_
Maybe you coul'd use UTF8 bold chars.
For examples: https://yaytext.com/bold-italic/
It works on Chromium 80.0, I don't know on other browsers...
if using /bin/sh
you can use:
if [ <condition> ] && [ <condition> ]; then
...
fi
if using /bin/bash
you can use:
if [[ <condition> && <condition> ]]; then
...
fi
Left to Right and Right to Left Swipe Detector
Firstly, declare two variable of float datatype.
private float x1, x2;
Secondly, wireup your xml view in java. Like I have ImageView
ImageView img = (ImageView) findViewById(R.id.imageView);
Thirdly, setOnTouchListener
on your ImageView
.
img.setOnTouchListener(
new View.OnTouchListener() {
@Override
public boolean onTouch(View v, MotionEvent event) {
// TODO Auto-generated method stub
switch (event.getAction()) {
case MotionEvent.ACTION_DOWN:
x1 = event.getX();
break;
case MotionEvent.ACTION_UP:
x2 = event.getX();
float deltaX = x2 - x1;
if (deltaX < 0) {
Toast.makeText(MainActivity.this,
"Right to Left swipe",
Toast.LENGTH_SHORT).show();
}else if(deltaX >0){
Toast.makeText(MainActivity.this,
"Left to Right swipe",
Toast.LENGTH_SHORT).show();
}
break;
}
return false;
}
});
In my case the problem was about permissions. I use Ubuntu 19.04
When running Android Studio in root
user it would prompt my phone about permission requirements. But with normal user it won't do this.
So the problem was about adb
not having enough permission.
I made my user owner of Android
folder on home
directory.
sudo chown -R orkhan ~/Android
In my case, I'm using j-hipster and I had to do ./mvnw clean
to overcome this warning.
Just use mysql_query (or mysqli_query, even better, or use PDO, best of all) with:
SELECT DATABASE() FROM DUAL;
There is much discussion over whether or not FROM DUAL
should be included in this or not. On a technical level, it is a holdover from Oracle and can safely be removed. If you are inclined, you can use the following instead:
SELECT DATABASE();
That said, it is perhaps important to note, that while FROM DUAL
does not actually do anything, it is valid MySQL syntax. From a strict perspective, including braces in a single line conditional in JavaScript also does not do anything, but it is still a valid practice.
Actually you can do with VS Code the following:
This can happen when you mistakenly import an Android project into your Eclipse workspace as a Java project. The solution in this case: delete the project from the workspace in the Package Explorer, then go to File -> Import -> Android -> Existing Android code into workspace.
In my pretty standard setup I've been seeing the following work well when passed in as VM Option (commandline before class in Java, or VM Option in an IDE):
-Droot.log.level=TRACE
Perform the following steps:
regedit
in the Run window.HKEY_LOCAL_MACHINE\SOFTWARE\ODBC
.please set dataType config property in your ajax call and give it another try!
another point is you are using ajax call setup configuration properties as string and it is wrong as reference site
$.ajax({
url : 'http://voicebunny.comeze.com/index.php',
type : 'GET',
data : {
'numberOfWords' : 10
},
dataType:'json',
success : function(data) {
alert('Data: '+data);
},
error : function(request,error)
{
alert("Request: "+JSON.stringify(request));
}
});
I hope be helpful!
SELECT count(word) as count
FROM words
GROUP BY word
HAVING count >= 2;
For inversion from 0 to 1 and back you can use this library InvertImages, which provides support for IE 10. I also tested with IE 11 and it should work.
EDIT: As pointed out in recent comments, this solution may BREAK your system.
You most likely don't want to remove python3.
Please refer to the other answers for possible solutions.
Outdated answer (not recommended)
sudo apt-get remove 'python3.*'
Remove both VALUES and the parenthesis.
INSERT INTO Table2 (LongIntColumn2, CurrencyColumn2)
SELECT LongIntColumn1, Avg(CurrencyColumn) FROM Table1 GROUP BY LongIntColumn1
On the "How to do it" part:
I think the introduction to ScalaTest does good job of illustrating different styles of unit tests.
On the "When to do it" part:
Unit testing is not only for testing. By doing unit testing you also force the design of the software into something that is unit testable. Many people are of the opinion that this design is for the most part Good Design(TM) regardless of other benefits from testing.
So one reason to do unit test is to force your design into something that hopefully will be easier to maintain that what it would be had you not designed it for unit testing.
There is a good stackoverflow answer here by Mark Rajcok:
AngularJS directive controllers requiring parent directive controllers?
with a link to this very clear jsFiddle: http://jsfiddle.net/mrajcok/StXFK/
<div ng-controller="MyCtrl">
<div screen>
<div component>
<div widget>
<button ng-click="widgetIt()">Woo Hoo</button>
</div>
</div>
</div>
</div>
JavaScript
var myApp = angular.module('myApp',[])
.directive('screen', function() {
return {
scope: true,
controller: function() {
this.doSomethingScreeny = function() {
alert("screeny!");
}
}
}
})
.directive('component', function() {
return {
scope: true,
require: '^screen',
controller: function($scope) {
this.componentFunction = function() {
$scope.screenCtrl.doSomethingScreeny();
}
},
link: function(scope, element, attrs, screenCtrl) {
scope.screenCtrl = screenCtrl
}
}
})
.directive('widget', function() {
return {
scope: true,
require: "^component",
link: function(scope, element, attrs, componentCtrl) {
scope.widgetIt = function() {
componentCtrl.componentFunction();
};
}
}
})
//myApp.directive('myDirective', function() {});
//myApp.factory('myService', function() {});
function MyCtrl($scope) {
$scope.name = 'Superhero';
}
I tried this and dont see any way of doing it.
here is my approach for it.
EXEC sp_rename 'Employee', 'Employee1'
-- Original table name is EmployeeINSERT INTO TABLE2 SELECT * FROM TABLE1
.
-- Insert into Employee select Name, Company from Employee1DROP table Employee1
.I know this is old but this answer came up in search results. For the next guy - the proposed and accepted answer works, however the code initially submitted in the question is lower-level than it needs to be. Nobody got time for that.
//one-line post request/response...
response, err := http.PostForm(APIURL, url.Values{
"ln": {c.ln},
"ip": {c.ip},
"ua": {c.ua}})
//okay, moving on...
if err != nil {
//handle postform error
}
defer response.Body.Close()
body, err := ioutil.ReadAll(response.Body)
if err != nil {
//handle read response error
}
fmt.Printf("%s\n", string(body))
templateUrl can be use as function with returning generated URL. We can manipulate url with passing argument which takes routeParams.
See the example.
.when('/:screenName/list',{
templateUrl: function(params){
return params.screenName +'/listUI'
}
})
Hope this help.
This is an old question but having the same problem i found a very elegant solution that i want to share.
Adding a prototype to Array makes it very simple
Array.prototype.isArray = true;
Now once if you have an object you want to test to see if its an array all you need is to check for the new property
var box = doSomething();
if (box.isArray) {
// do something
}
isArray is only available if its an array
content-type
To send data the standard way, as a browser would with a form, just pass an associative array. As stated by PHP's manual:
This parameter can either be passed as a urlencoded string like 'para1=val1¶2=val2&...' or as an array with the field name as key and field data as value. If value is an array, the Content-Type header will be set to multipart/form-data.
Neverthless, when communicating with JSON APIs, content must be JSON encoded for the API to understand our POST data.
In such cases, content must be explicitely encoded as JSON :
CURLOPT_POSTFIELDS => json_encode(['param1' => $param1, 'param2' => $param2]),
When communicating in JSON, we also usually set accept
and content-type
headers accordingly:
CURLOPT_HTTPHEADER => [
'accept: application/json',
'content-type: application/json'
]
All these answers around here, as well as the answers in this question, suggest that loading absolute URLs, like "/foo/bar.properties" treated the same by class.getResourceAsStream(String)
and class.getClassLoader().getResourceAsStream(String)
. This is NOT the case, at least not in my Tomcat configuration/version (currently 7.0.40).
MyClass.class.getResourceAsStream("/foo/bar.properties"); // works!
MyClass.class.getClassLoader().getResourceAsStream("/foo/bar.properties"); // does NOT work!
Sorry, I have absolutely no satisfying explanation, but I guess that tomcat does dirty tricks and his black magic with the classloaders and cause the difference. I always used class.getResourceAsStream(String)
in the past and haven't had any problems.
PS: I also posted this over here
If you have this while Fiddler is running -> in Fiddler, go to 'Rules' and disable 'Automatically Authenticate' and it should work again.
Use linq and set the data table as Enumerable and select the fields from the data table field that matches what you are looking for.
Example
I want to get the currency Id and currency Name from the currency table where currency is local currency, and assign the currency id and name to a text boxes on the form:
DataTable dt = curData.loadCurrency();
var curId = from c in dt.AsEnumerable()
where c.Field<bool>("LocalCurrency") == true
select c.Field<int>("CURID");
foreach (int cid in curId)
{
txtCURID.Text = cid.ToString();
}
var curName = from c in dt.AsEnumerable()
where c.Field<bool>("LocalCurrency") == true
select c.Field<string>("CurName");
foreach (string cName in curName)
{
txtCurrency.Text = cName.ToString();
}
Also OneToOneField
is useful to be used as primary key to avoid key duplication. One may do not have implicit / explicit autofield
models.AutoField(primary_key=True)
but use OneToOneField
as primary key instead (imagine UserProfile
model for example):
user = models.OneToOneField(
User, null=False, primary_key=True, verbose_name='Member profile')
You should issue HEAD requests, not GET one, because you don't need the URI contents at all. As Pies said above, you should check for status code (in 200-299 ranges, and you may optionally follow 3xx redirects).
The answers question contain a lot of code examples which may be helpful: PHP / Curl: HEAD Request takes a long time on some sites
Rather than abusing plot
or annotate
, which will be inefficient for many lines, you can use matplotlib.collections.LineCollection
:
import numpy as np
import matplotlib.pyplot as plt
from matplotlib.collections import LineCollection
np.random.seed(5)
x = np.arange(1, 101)
y = 20 + 3 * x + np.random.normal(0, 60, 100)
plt.plot(x, y, "o")
# Takes list of lines, where each line is a sequence of coordinates
l1 = [(70, 100), (70, 250)]
l2 = [(70, 90), (90, 200)]
lc = LineCollection([l1, l2], color=["k","blue"], lw=2)
plt.gca().add_collection(lc)
plt.show()
It takes a list of lines [l1, l2, ...]
, where each line is a sequence of N coordinates (N can be more than two).
The standard formatting keywords are available, accepting either a single value, in which case the value applies to every line, or a sequence of M values
, in which case the value for the ith line is values[i % M]
.
You're multipling your "1 + 0.01" times the growthRate list, not the item in the list you're iterating through. I've renamed i
to rate
and using that instead. See the updated code below:
def nestEgVariable(salary, save, growthRates):
SavingsRecord = []
fund = 0
depositPerYear = salary * save * 0.01
# V-- rate is a clearer name than i here, since you're iterating through the rates contained in the growthRates list
for rate in growthRates:
# V-- Use the `rate` item in the growthRate list you're iterating through rather than multiplying by the `growthRate` list itself.
fund = fund * (1 + 0.01 * rate) + depositPerYear
SavingsRecord += [fund,]
return SavingsRecord
print nestEgVariable(10000,10,[3,4,5,0,3])
Building off of Mulfix's answer, if you have Visual Studio Community 2015, try Add Reference... -> COM -> Type Libraries -> 'Microsoft Excel 15.0 Object Library'.
Of course you can, but why do this? You have to include a <script></script>
pair of tags that link to the jQuery web page, i.e.:
<script type="text/javascript" src="http://code.jquery.com/jquery-latest.min.js"></script>
. Then you will load the whole jQuery object just to use one single function, and because jQuery is a JavaScript library which will take time for the computer to upload, it will execute slower than just JavaScript.
Dump DB by mongodump
mongodump --host <database-host> -d <database-name> --port <database-port> --out directory
Restore DB by mongorestore
With Index Restore
mongorestore --host <database-host> -d <database-name> --port <database-port> foldername
Without Index Restore
mongorestore --noIndexRestore --host <database-host> -d <database-name> --port <database-port> foldername
Import Single Collection from CSV [1st Column will be treat as Col/Key Name]
mongoimport --db <database-name> --port <database-port> --collection <collection-name> --type csv --headerline --file /path/to/myfile.csv
Import Single Collection from JSON
mongoimport --db <database-name> --port <database-port> --collection <collection-name> --file input.json
From your previous comments you said a -journal file was present.
This could mean that you have opened and (EXCLUSIVE?) transaction and have not yet committed the data. Did your program or some other process leave the -journal behind??
Restarting the sqlite process will look at the journal file and clean up any uncommitted actions and remove the -journal file.
An abstract class can have implementations.
An interface doesn't have implementations, it simply defines a kind of contract.
There can also be some language-dependent differences: for example C# does not have multiple inheritance, but multiple interfaces can be implemented in a class.
If your directory structure is like this,
site
application
controller
folder_1
first_controller.php
second_controller.php
folder_2
first_controller.php
second_controller.php
And when you are going to redirect it in same controller in which you are working then just write the following code.
$this->load->helper('url');
if ($some_value === FALSE/TRUE) //You may give 0/1 as well,its up to your logic
{
redirect('same_controller/method', 'refresh');
}
And if you want to redirect to another control then use the following code.
$this->load->helper('url');
if ($some_value === FALSE/TRUE) //You may give 0/1 as well,its up to your logic
{
redirect('folder_name/any_controller_name/method', 'refresh');
}
CSS isn't going to be able to call other elements like that, you'll need to use JavaScript to reach beyond a child or sibling selector.
You could try something like this:
<a>Some Link
<div><img src="/you/image" /></div>
</a>
then...
a>div { display: none; }
a:hover>div { display: block; }
UTF-8 is prepared for world domination, Latin1 isn't.
If you're trying to store non-Latin characters like Chinese, Japanese, Hebrew, Russian, etc using Latin1 encoding, then they will end up as mojibake. You may find the introductory text of this article useful (and even more if you know a bit Java).
Note that full 4-byte UTF-8 support was only introduced in MySQL 5.5. Before that version, it only goes up to 3 bytes per character, not 4 bytes per character. So, it supported only the BMP plane and not e.g. the Emoji plane. If you want full 4-byte UTF-8 support, upgrade MySQL to at least 5.5 or go for another RDBMS like PostgreSQL. In MySQL 5.5+ it's called utf8mb4
.
Java 8 does bring the
Collectors.joining(CharSequence delimiter, CharSequence prefix, CharSequence suffix)
method, that is nullsafe by using prefix + suffix
for null values.
It can be used in the following manner:
String s = stringList.stream().collect(Collectors.joining(" and ", "prefix_", "_suffix"))
The Collectors.joining(CharSequence delimiter)
method just calls joining(delimiter, "", "")
internally.
Source Link
For Android
Calendar.getInstance().getTime() gives
Thu Jul 26 15:54:13 GMT+05:30 2018
Use
String oldDate = "Thu Jul 26 15:54:13 GMT+05:30 2018";
DateFormat format = new SimpleDateFormat("EEE LLL dd HH:mm:ss Z yyyy");
Date updateLast = format.parse(oldDate);
As said, modifying the href when there is a hash (#) in the url would not reload the page. Thus, I use this to reload it instead of regular expressions:
if (!window.location.hash) {
window.location.href = window.location.href;
} else {
window.location.reload();
}
<html>
<style>
.selectBox{
color:White;
}
.optionBox{
color:black;
}
</style>
<body>
<select class = "selectBox">
<option class = "optionBox">One</option>
<option class = "optionBox">Two</option>
<option class = "optionBox">Three</option>
</select>
Yes, you can safely pass an array as a parameter.
or what you could do in your Form Request is (for Laravel 5.3+)
public function rules()
{
return [
'email' => 'required|email|unique:users,email,'.$this->user, //here user is users/{user} from resource's route url
];
}
i've done it in Laravel 5.6 and it worked.
void foo() {
/* do some stuff */
if (!condition) {
return;
}
}
You can just use the return keyword just like you would in any other function.
Your @POST
method should be accepting a JSON object instead of a string. Jersey uses JAXB to support marshaling and unmarshaling JSON objects (see the jersey docs for details). Create a class like:
@XmlRootElement
public class MyJaxBean {
@XmlElement public String param1;
@XmlElement public String param2;
}
Then your @POST
method would look like the following:
@POST @Consumes("application/json")
@Path("/create")
public void create(final MyJaxBean input) {
System.out.println("param1 = " + input.param1);
System.out.println("param2 = " + input.param2);
}
This method expects to receive JSON object as the body of the HTTP POST. JAX-RS passes the content body of the HTTP message as an unannotated parameter -- input
in this case. The actual message would look something like:
POST /create HTTP/1.1
Content-Type: application/json
Content-Length: 35
Host: www.example.com
{"param1":"hello","param2":"world"}
Using JSON in this way is quite common for obvious reasons. However, if you are generating or consuming it in something other than JavaScript, then you do have to be careful to properly escape the data. In JAX-RS, you would use a MessageBodyReader and MessageBodyWriter to implement this. I believe that Jersey already has implementations for the required types (e.g., Java primitives and JAXB wrapped classes) as well as for JSON. JAX-RS supports a number of other methods for passing data. These don't require the creation of a new class since the data is passed using simple argument passing.
HTML <FORM>
The parameters would be annotated using @FormParam:
@POST
@Path("/create")
public void create(@FormParam("param1") String param1,
@FormParam("param2") String param2) {
...
}
The browser will encode the form using "application/x-www-form-urlencoded". The JAX-RS runtime will take care of decoding the body and passing it to the method. Here's what you should see on the wire:
POST /create HTTP/1.1
Host: www.example.com
Content-Type: application/x-www-form-urlencoded;charset=UTF-8
Content-Length: 25
param1=hello¶m2=world
The content is URL encoded in this case.
If you do not know the names of the FormParam's you can do the following:
@POST @Consumes("application/x-www-form-urlencoded")
@Path("/create")
public void create(final MultivaluedMap<String, String> formParams) {
...
}
HTTP Headers
You can using the @HeaderParam annotation if you want to pass parameters via HTTP headers:
@POST
@Path("/create")
public void create(@HeaderParam("param1") String param1,
@HeaderParam("param2") String param2) {
...
}
Here's what the HTTP message would look like. Note that this POST does not have a body.
POST /create HTTP/1.1
Content-Length: 0
Host: www.example.com
param1: hello
param2: world
I wouldn't use this method for generalized parameter passing. It is really handy if you need to access the value of a particular HTTP header though.
HTTP Query Parameters
This method is primarily used with HTTP GETs but it is equally applicable to POSTs. It uses the @QueryParam annotation.
@POST
@Path("/create")
public void create(@QueryParam("param1") String param1,
@QueryParam("param2") String param2) {
...
}
Like the previous technique, passing parameters via the query string does not require a message body. Here's the HTTP message:
POST /create?param1=hello¶m2=world HTTP/1.1
Content-Length: 0
Host: www.example.com
You do have to be particularly careful to properly encode query parameters on the client side. Using query parameters can be problematic due to URL length restrictions enforced by some proxies as well as problems associated with encoding them.
HTTP Path Parameters
Path parameters are similar to query parameters except that they are embedded in the HTTP resource path. This method seems to be in favor today. There are impacts with respect to HTTP caching since the path is what really defines the HTTP resource. The code looks a little different than the others since the @Path annotation is modified and it uses @PathParam:
@POST
@Path("/create/{param1}/{param2}")
public void create(@PathParam("param1") String param1,
@PathParam("param2") String param2) {
...
}
The message is similar to the query parameter version except that the names of the parameters are not included anywhere in the message.
POST /create/hello/world HTTP/1.1
Content-Length: 0
Host: www.example.com
This method shares the same encoding woes that the query parameter version. Path segments are encoded differently so you do have to be careful there as well.
As you can see, there are pros and cons to each method. The choice is usually decided by your clients. If you are serving FORM
-based HTML pages, then use @FormParam
. If your clients are JavaScript+HTML5-based, then you will probably want to use JAXB-based serialization and JSON objects. The MessageBodyReader/Writer
implementations should take care of the necessary escaping for you so that is one fewer thing that can go wrong. If your client is Java based but does not have a good XML processor (e.g., Android), then I would probably use FORM
encoding since a content body is easier to generate and encode properly than URLs are. Hopefully this mini-wiki entry sheds some light on the various methods that JAX-RS supports.
Note: in the interest of full disclosure, I haven't actually used this feature of Jersey yet. We were tinkering with it since we have a number of JAXB+JAX-RS applications deployed and are moving into the mobile client space. JSON is a much better fit that XML on HTML5 or jQuery-based solutions.
With JRE 8 on XP there is another way - to use MSI to deploy package.
or (silent way, usable in batch file etc..)
for %%I in ("*.msi") do if exist "%%I" msiexec.exe /i %%I /qn EULA=0 SKIPLICENSE=1 PROG=0 ENDDIALOG=0
In plain English:
You should probably make the Child as functional component if it does not maintain any state and simply renders the props and then call it from the parent. Alternative to this is that you can use hooks with the functional component (useState) which will cause stateless component to re-render.
Also you should not alter the propas as they are immutable. Maintain state of the component.
Child = ({bar}) => (bar);
Databases are isolated in PostgreSQL; when you connect to a PostgreSQL server you connect to just one database, you can't copy data from one database to another using a SQL query.
If you come from MySQL: what MySQL calls (loosely) "databases" are "schemas" in PostgreSQL - sort of namespaces. A PostgreSQL database can have many schemas, each one with its tables and views, and you can copy from one schema to another with the schema.table
syntax.
If you really have two distinct PostgreSQL databases, the common way of transferring data from one to another would be to export your tables (with pg_dump -t
) to a file, and import them into the other database (with psql
).
If you really need to get data from a distinct PostgreSQL database, another option - mentioned in Grant Johnson's answer - is dblink, which is an additional module (in contrib/
).
Update:
Postgres introduced "foreign data wrapper" in 9.1 (which was released after the question was asked). Foreign data wrappers allow the creation of foreign tables through the Postgres FDW which makes it possible to access a remote table (on a different server and database) as if it was a local table.
In my case, an aborted Nuget restore-attempt had corrupted one of the packages.config
files in the solution. I did not discover this before checking my git working tree. After reverting the changes in the file, Nuget restore was working again.
I like what Franz said, because is what I'm using :P
var date_ini = new Date($('#id_date_ini').val()).getTime();
var date_end = new Date($('#id_date_end').val()).getTime();
if (isNaN(date_ini)) {
// error date_ini;
}
if (isNaN(date_end)) {
// error date_end;
}
if (date_ini > date_end) {
// do something;
}
$("ul").empty()
works fine. Is there some other error?
$('input').click(function() {_x000D_
$('ul').empty()_x000D_
});
_x000D_
<script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/3.3.1/jquery.min.js"></script>_x000D_
<ul>_x000D_
<li>test</li>_x000D_
<li>test</li>_x000D_
</ul>_x000D_
_x000D_
<input type="button" value="click me" />
_x000D_
A cheap solution is to really make a dict with enumerate and use .get()
as usual, like
dict(enumerate(l)).get(7, my_default)
It's likely that the download was corrupted if you are getting an error with the disk image. Go back to the downloads page at https://developers.google.com/appengine/downloads and look at the SHA1 checksum. Then, go to your Terminal app on your mac and run the following:
openssl sha1 [put the full path to the file here without brackets]
For example:
openssl sha1 /Users/me/Desktop/myFile.dmg
If you get a different value than the one on the Downloads page, you know your file is not properly downloaded and you should try again.
This may be a little late but going back to your example I thought I would extend the answer just a tad.
D1 <- data.frame(Y1=c(1,2,3), Y2=c(4,5,6))
D2 <- data.frame(Y1=c(3,2,1), Y2=c(6,5,4))
D3 <- data.frame(Y1=c(6,5,4), Y2=c(3,2,1))
D4 <- data.frame(Y1=c(9,9,9), Y2=c(8,8,8))
Then you make your list easily:
mylist <- list(D1,D2,D3,D4)
Now you have a list but instead of accessing the list the old way such as
mylist[[1]] # to access 'd1'
you can use this function to obtain & assign the dataframe of your choice.
GETDF_FROMLIST <- function(DF_LIST, ITEM_LOC){
DF_SELECTED <- DF_LIST[[ITEM_LOC]]
return(DF_SELECTED)
}
Now get the one you want.
D1 <- GETDF_FROMLIST(mylist, 1)
D2 <- GETDF_FROMLIST(mylist, 2)
D3 <- GETDF_FROMLIST(mylist, 3)
D4 <- GETDF_FROMLIST(mylist, 4)
Hope that extra bit helps.
Cheers!
SELECT 'Free &' || ' Clear' FROM DUAL;
Seekbar called onProgressChanged method when we initialize first time. We can skip by using below code We need to check boolean it return false when initialize automatically
volumeManager.setOnSeekBarChangeListener(new SeekBar.OnSeekBarChangeListener() {
@Override
public void onProgressChanged(SeekBar seekBar, int i, boolean b) {
if(b){
mAudioManager.setStreamVolume(AudioManager.STREAM_MUSIC, i, 0);
}
}
@Override
public void onStartTrackingTouch(SeekBar seekBar) {
}
@Override
public void onStopTrackingTouch(SeekBar seekBar) {
}
});
<html>
<table>
<tr>
<td style="padding-left: 5px;padding-bottom:3px; font-size:35px;"> <b>Datum:</b><br/>
November 2010 </td>
</table>
</html>
You can use IETester (http://www.my-debugbar.com/wiki/IETester/HomePage)
function MyClass() {}
MyClass.prototype.myMethod = function() {
alert( "doing original");
};
MyClass.prototype.myMethod_original = MyClass.prototype.myMethod;
MyClass.prototype.myMethod = function() {
MyClass.prototype.myMethod_original.call( this );
alert( "doing override");
};
myObj = new MyClass();
myObj.myMethod();
Your best bet is probably waitForCondition
and writing a javascript function that returns true when the map is loaded.
Such behavior is described in Migrating from PHP 7.0.x to PHP 7.1.x/
The empty index operator is not supported for strings anymore Applying the empty index operator to a string (e.g. $str[] = $x) throws a fatal error instead of converting silently to array.
In my case it was a mere initialization. I fixed it by replacing $foo=''
with $foo=[]
.
$foo='';
$foo[]='test';
print_r($foo);
beginupd.getTime()
will give you time in milliseconds since January 1, 1970, 00:00:00 GMT till the time you have specified in Date
object
Updated:
As pointed out in the comments, setting the description to null indicates that the image is purely decorative and is understood as that by screen readers like TalkBack.
Old answer, I no longer support this answer:
For all the people looking how to avoid the warning:
I don't think android:contentDescription="@null"
is the best solution.
I'm using tools:ignore="ContentDescription"
that is what is meant to be.
Make sure you include xmlns:tools="http://schemas.android.com/tools"
in your root layout.
In order to make the existing primary key as auto_increment
, you may use:
ALTER TABLE table_name MODIFY id INT AUTO_INCREMENT;
CASE
in MySQL is both a statement and an expression, where each usage is slightly different.
As a statement, CASE
works much like a switch statement and is useful in stored procedures, as shown in this example from the documentation (linked above):
DELIMITER |
CREATE PROCEDURE p()
BEGIN
DECLARE v INT DEFAULT 1;
CASE v
WHEN 2 THEN SELECT v;
WHEN 3 THEN SELECT 0;
ELSE
BEGIN -- Do other stuff
END;
END CASE;
END;
|
However, as an expression it can be used in clauses:
SELECT *
FROM employees
ORDER BY
CASE title
WHEN "President" THEN 1
WHEN "Manager" THEN 2
ELSE 3
END, surname
Additionally, both as a statement and as an expression, the first argument can be omitted and each WHEN
must take a condition.
SELECT *
FROM employees
ORDER BY
CASE
WHEN title = "President" THEN 1
WHEN title = "Manager" THEN 2
ELSE 3
END, surname
I provided this answer because the other answer fails to mention that CASE
can function both as a statement and as an expression. The major difference between them is that the statement form ends with END CASE
and the expression form ends with just END
.
This worked for me: just move images from drawable folder to drawable-hdpi.
As mentioned you need to use obj.getTile()
But, in this case I think you are looking to use a Property.
public class Pin
{
private string title;
public Pin() { }
public setTitle(string title) {
this.title = title;
}
public String Title
{
get { return title; }
}
}
This will allow you to use
foreach (Pin obj in ClassListPin.pins)
{
string t = obj.Title;
}
Maybe this will help:
<select onchange="location = this.value;">
<option value="home.html">Home</option>
<option value="contact.html">Contact</option>
<option value="about.html">About</option>
</select>
\begingroup
\fontsize{10pt}{12pt}\selectfont
\begin{verbatim}
% how to set font size here to 10 px ?
\end{verbatim}
\endgroup
==
is a bash-specific alias for =
and it performs a string (lexical) comparison instead of a numeric comparison. eq
being a numeric comparison of course.
Finally, I usually prefer to use the form if [ "$a" == "$b" ]
Nouns.h
doesn't include <string>
, but it needs to. You need to add
#include <string>
at the top of that file, otherwise the compiler doesn't know what std::string
is when it is encountered for the first time.
You can print the function by evaluating the name of it in the console, like so
> unknownFunc
function unknownFunc(unknown) {
alert('unknown seems to be ' + unknown);
}
this won't work for built-in functions, they will only display [native code]
instead of the source code.
EDIT: this implies that the function has been defined within the current scope.
You can query the INFORMATION_SCHEMA tables
system view:
SELECT table_name
FROM information_schema.tables
WHERE table_schema = 'databasename'
AND table_name = 'testtable';
If no rows returned, then the table doesn't exist.
https://msdn.microsoft.com/es-es/library/h9b85w22(v=vs.110).aspx
string[] formats= {"M/d/yyyy h:mm:ss tt", "M/d/yyyy h:mm tt",
"MM/dd/yyyy hh:mm:ss", "M/d/yyyy h:mm:ss",
"M/d/yyyy hh:mm tt", "M/d/yyyy hh tt",
"M/d/yyyy h:mm", "M/d/yyyy h:mm",
"MM/dd/yyyy hh:mm", "M/dd/yyyy hh:mm"};
string[] dateStrings = {"5/1/2009 6:32 PM", "05/01/2009 6:32:05 PM",
"5/1/2009 6:32:00", "05/01/2009 06:32",
"05/01/2009 06:32:00 PM", "05/01/2009 06:32:00"};
DateTime dateValue;
foreach (string dateString in dateStrings)
{
if (DateTime.TryParseExact(dateString, formats,
new CultureInfo("en-US"),
DateTimeStyles.None,
out dateValue))
Console.WriteLine("Converted '{0}' to {1}.", dateString, dateValue);
else
Console.WriteLine("Unable to convert '{0}' to a date.", dateString);
}
UPDATE : check Peter's answer below for a builtin solution :
This is a helper to set a persistent cookie:
import datetime
def set_cookie(response, key, value, days_expire=7):
if days_expire is None:
max_age = 365 * 24 * 60 * 60 # one year
else:
max_age = days_expire * 24 * 60 * 60
expires = datetime.datetime.strftime(
datetime.datetime.utcnow() + datetime.timedelta(seconds=max_age),
"%a, %d-%b-%Y %H:%M:%S GMT",
)
response.set_cookie(
key,
value,
max_age=max_age,
expires=expires,
domain=settings.SESSION_COOKIE_DOMAIN,
secure=settings.SESSION_COOKIE_SECURE or None,
)
Use the following code before sending a response.
def view(request):
response = HttpResponse("hello")
set_cookie(response, 'name', 'jujule')
return response
UPDATE : check Peter's answer below for a builtin solution :
Not very simple but:
a = [1,1,1,2,2,3]
b = a.group_by {|n| n}.each {|k,v| v.pop [1,3].count(k)}.values.flatten
=> [1, 1, 2, 2]
Also handles the case for multiples in the 'subtrahend':
a = [1,1,1,2,2,3]
b = a.group_by {|n| n}.each {|k,v| v.pop [1,1,3].count(k)}.values.flatten
=> [1, 2, 2]
EDIT: this is more an enhancement combining Norm212 and my answer to make a "functional" solution.
b = [1,1,3].each.with_object( a ) { |del| a.delete_at( a.index( del ) ) }
Put it in a lambda if needed:
subtract = lambda do |minuend, subtrahend|
subtrahend.each.with_object( minuend ) { |del| minuend.delete_at( minuend.index( del ) ) }
end
then:
subtract.call a, [1,1,3]
Use: "%.2f"
or variations on that.
See the POSIX spec for an authoritative specification of the printf()
format strings. Note that it separates POSIX extras from the core C99 specification. There are some C++ sites which show up in a Google search, but some at least have a dubious reputation, judging from comments seen elsewhere on SO.
Since you're coding in C++, you should probably be avoiding printf()
and its relatives.
Use a process group so as to enable sending a signal to all the process in the groups. For that, you should attach a session id to the parent process of the spawned/child processes, which is a shell in your case. This will make it the group leader of the processes. So now, when a signal is sent to the process group leader, it's transmitted to all of the child processes of this group.
Here's the code:
import os
import signal
import subprocess
# The os.setsid() is passed in the argument preexec_fn so
# it's run after the fork() and before exec() to run the shell.
pro = subprocess.Popen(cmd, stdout=subprocess.PIPE,
shell=True, preexec_fn=os.setsid)
os.killpg(os.getpgid(pro.pid), signal.SIGTERM) # Send the signal to all the process groups
$res = mysql_query("SELECT table_name FROM information_schema.tables WHERE table_schema = '$databasename' AND table_name = '$tablename';");
If no records are returned then it doesn't exist.
Even if you don't use network proxy, turning 'Automatically detect settings' in proxy dialog makes this exception go off.
#include<stdio.h>
int main()
{
int a[10];
int i,b,c;
printf("Enter ten values : \n");
for(i=0; i<10; i++)
{
scanf("%d",&a[i]);
}
b=a[0];
for(i=0; i<10; i++)
{
if(a[i]>b)
{
b=a[i];
}
else
{
b=b;
}
}
if(b==a[1])
{
c=a[2];
}
else
{
c=a[1];
}
for(i=0; i<10; i++)
{
if(a[i]>c && a[i]!=b)
{
c=a[i];
}
else if (b>c)
{
c=c;
}
}
printf("Largest number is %d\nSecond largest number is %d",b,c);
}
I wanted to see a benchmark result of functions mentioned in answers including unutbu's.
Also want to point out that numpy doc recommend to use arr.reshape(-1)
in case view is preferable. (even though ravel
is tad faster in the following result)
TL;DR:
np.ravel
is the most performant (by very small amount).
Functions:
np.ravel
: returns view, if possiblenp.reshape(-1)
: returns view, if possiblenp.flatten
: returns copynp.flat
: returns numpy.flatiter
. similar to iterable
numpy version: '1.18.0'
ndarray
sizes+-------------+----------+-----------+-----------+-------------+
| function | 10x10 | 100x100 | 1000x1000 | 10000x10000 |
+-------------+----------+-----------+-----------+-------------+
| ravel | 0.002073 | 0.002123 | 0.002153 | 0.002077 |
| reshape(-1) | 0.002612 | 0.002635 | 0.002674 | 0.002701 |
| flatten | 0.000810 | 0.007467 | 0.587538 | 107.321913 |
| flat | 0.000337 | 0.000255 | 0.000227 | 0.000216 |
+-------------+----------+-----------+-----------+-------------+
ravel
andreshape(-1)
's execution time was consistent and independent from ndarray size. However,ravel
is tad faster, butreshape
provides flexibility in reshaping size. (maybe that's why numpy doc recommend to use it instead. Or there could be some cases wherereshape
returns view andravel
doesn't).
If you are dealing with large size ndarray, usingflatten
can cause a performance issue. Recommend not to use it. Unless you need a copy of the data to do something else.
import timeit
setup = '''
import numpy as np
nd = np.random.randint(10, size=(10, 10))
'''
timeit.timeit('nd = np.reshape(nd, -1)', setup=setup, number=1000)
timeit.timeit('nd = np.ravel(nd)', setup=setup, number=1000)
timeit.timeit('nd = nd.flatten()', setup=setup, number=1000)
timeit.timeit('nd.flat', setup=setup, number=1000)
Previous answer didn't work for me.
But this worked perfectly. Convert Data URI to File then append to FormData
try this..
SELECT Name
FROM sys.procedures
WHERE OBJECT_DEFINITION(OBJECT_ID) LIKE '%CreatedDate%'
GO
or you can generate a scripts of all procedures and search from there.
A NullPointerException means that one of the variables you are passing is null, but the code tries to use it like it is not.
For example, If I do this:
Integer myInteger = null;
int n = myInteger.intValue();
The code tries to grab the intValue of myInteger, but since it is null, it does not have one: a null pointer exception happens.
What this means is that your getTask method is expecting something that is not a null, but you are passing a null. Figure out what getTask needs and pass what it wants!
I also face the same problem. do the simple steps
To answer to your second question. You can just hit the IP address of the machine that your flask app is running, e.g. 192.168.1.100
in a browser on different machine on the same network and you are there. Though, you will not be able to access it if you are on a different network. Firewalls or VLans can cause you problems with reaching your application.
If that computer has a public IP, then you can hit that IP from anywhere on the planet and you will be able to reach the app. Usually this might impose some configuration, since most of the public servers are behind some sort of router or firewall.
you may also like this
var Grp = Model.GroupBy(item => item.Order.Customer)
.Select(group => new
{
Customer = Model.First().Customer,
CustomerId= group.Key,
Orders= group.ToList()
})
.ToList();
Probably svn import
would be the best option around. Check out Getting Data into Your Repository (in Version Control with Subversion, For Subversion).
The svn import command is a quick way to copy an unversioned tree of files into a repository, creating intermediate directories as necessary. svn import doesn't require a working copy, and your files are immediately committed to the repository. You typically use this when you have an existing tree of files that you want to begin tracking in your Subversion repository. For example:
$ svn import /path/to/mytree \ http://svn.example.com/svn/repo/some/project \ -m "Initial import" Adding mytree/foo.c Adding mytree/bar.c Adding mytree/subdir Adding mytree/subdir/quux.h Committed revision 1. $
The previous example copied the contents of the local directory mytree into the directory some/project in the repository. Note that you didn't have to create that new directory first—svn import does that for you. Immediately after the commit, you can see your data in the repository:
$ svn list http://svn.example.com/svn/repo/some/project bar.c foo.c subdir/ $
Note that after the import is finished, the original local directory is not converted into a working copy. To begin working on that data in a versioned fashion, you still need to create a fresh working copy of that tree.
Note: if you are on the same machine as the Subversion repository you can use the file://
specifier with a path rather than the https://
with a URL specifier.
You can get the base path by using the following code and append your needed path with that.
string path = System.AppDomain.CurrentDomain.BaseDirectory;
This should fix your problem: android:layout_weight="1"
.
To append to an array, just use the +=
operator.
$Target += $TargetObject
Also, you need to declare $Target = @()
before your loop because otherwise, it will empty the array every loop.
I was looking for a similar functionality some days back and came across a good tutorial on tutorialzine. Here is an working example. Complete tutorial can be found here.
Simple form to hold the file upload dialogue:
<form id="upload" method="post" action="upload.php" enctype="multipart/form-data">
<input type="file" name="uploadctl" multiple />
<ul id="fileList">
<!-- The file list will be shown here -->
</ul>
</form>
And here is the jQuery code to upload the files:
$('#upload').fileupload({
// This function is called when a file is added to the queue
add: function (e, data) {
//This area will contain file list and progress information.
var tpl = $('<li class="working">'+
'<input type="text" value="0" data-width="48" data-height="48" data-fgColor="#0788a5" data-readOnly="1" data-bgColor="#3e4043" />'+
'<p></p><span></span></li>' );
// Append the file name and file size
tpl.find('p').text(data.files[0].name)
.append('<i>' + formatFileSize(data.files[0].size) + '</i>');
// Add the HTML to the UL element
data.context = tpl.appendTo(ul);
// Initialize the knob plugin. This part can be ignored, if you are showing progress in some other way.
tpl.find('input').knob();
// Listen for clicks on the cancel icon
tpl.find('span').click(function(){
if(tpl.hasClass('working')){
jqXHR.abort();
}
tpl.fadeOut(function(){
tpl.remove();
});
});
// Automatically upload the file once it is added to the queue
var jqXHR = data.submit();
},
progress: function(e, data){
// Calculate the completion percentage of the upload
var progress = parseInt(data.loaded / data.total * 100, 10);
// Update the hidden input field and trigger a change
// so that the jQuery knob plugin knows to update the dial
data.context.find('input').val(progress).change();
if(progress == 100){
data.context.removeClass('working');
}
}
});
//Helper function for calculation of progress
function formatFileSize(bytes) {
if (typeof bytes !== 'number') {
return '';
}
if (bytes >= 1000000000) {
return (bytes / 1000000000).toFixed(2) + ' GB';
}
if (bytes >= 1000000) {
return (bytes / 1000000).toFixed(2) + ' MB';
}
return (bytes / 1000).toFixed(2) + ' KB';
}
And here is the PHP code sample to process the data:
if($_POST) {
$allowed = array('jpg', 'jpeg');
if(isset($_FILES['uploadctl']) && $_FILES['uploadctl']['error'] == 0){
$extension = pathinfo($_FILES['uploadctl']['name'], PATHINFO_EXTENSION);
if(!in_array(strtolower($extension), $allowed)){
echo '{"status":"error"}';
exit;
}
if(move_uploaded_file($_FILES['uploadctl']['tmp_name'], "/yourpath/." . $extension)){
echo '{"status":"success"}';
exit;
}
echo '{"status":"error"}';
}
exit();
}
The above code can be added to any existing form. This program automatically uploads images, once they are added. This functionality can be changed and you can submit the image, while you are submitting your existing form.
Updated my answer with actual code. All credits to original author of the code.
Source: http://tutorialzine.com/2013/05/mini-ajax-file-upload-form/
empty() used to work for this, but the behavior of empty() has changed several times. As always, the php docs are always the best source for exact behavior and the comments on those pages usually provide a good history of the changes over time. If you want to check for a lack of object properties, a very defensive method at the moment is:
if (is_object($theObject) && (count(get_object_vars($theObject)) > 0)) {
var test = parseInt($("#testid").val(), 10);
You have to tell it you want the value
of the input you are targeting.
And also, always provide the second argument (radix) to parseInt
. It tries to be too clever and autodetect it if not provided and can lead to unexpected results.
Providing 10
assumes you are wanting a base 10 number.
Basing on this answer if you need history object only in order to navigate to other component:
import { useHistory } from "react-router-dom";
function HomeButton() {
const history = useHistory();
function handleClick() {
history.push("/home");
}
return (
<button type="button" onClick={handleClick}>
Go home
</button>
);
}
To prepare the configration for WCF is hard, and sometimes a service type definition go unnoticed.
I wrote only the namespace in the service tag, so I got the same error.
<service name="ServiceNameSpace">
Do not forget, the service tag needs a fully-qualified service class name.
<service name="ServiceNameSpace.ServiceClass">
For the other folks who are like me.
What about using "undefined"?
if (value != undefined){ // do stuff }
You can also set selected image bar tint color by key path:
Hope this will help you!! Thanks
I. In your build.gradle add latest appcompat library, at the time 24.2.1
dependencies {
compile 'com.android.support:appcompat-v7:X.X.X'
// where X.X.X version
}
II. Make your activity extend android.support.v7.app.AppCompatActivity
and implement the DatePickerDialog.OnDateSetListener
interface.
public class MainActivity extends AppCompatActivity
implements DatePickerDialog.OnDateSetListener {
III. Create your DatePickerDialog
setting a context, the implementation of the listener and the start year, month and day of the date picker.
DatePickerDialog datePickerDialog = new DatePickerDialog(
context, MainActivity.this, startYear, starthMonth, startDay);
IV. Show your dialog on the click event listener of your button
((Button) findViewById(R.id.myButton))
.setOnClickListener(new OnClickListener() {
@Override
public void onClick(View v) {
datePickerDialog.show();
}
});
Initializations with (...)
in the class body is not allowed. Use {..}
or = ...
. Unfortunately since the respective constructor is explicit
and vector
has an initializer list constructor, you need a functional cast to call the wanted constructor
vector<string> name = decltype(name)(5);
vector<int> val = decltype(val)(5,0);
As an alternative you can use constructor initializer lists
Attribute():name(5), val(5, 0) {}
Step 1 Write all file SHA1s to a text file:
git rev-list --objects --all | sort -k 2 > allfileshas.txt
Step 2 Sort the blobs from biggest to smallest and write results to text file:
git gc && git verify-pack -v .git/objects/pack/pack-*.idx | egrep "^\w+ blob\W+[0-9]+ [0-9]+ [0-9]+$" | sort -k 3 -n -r > bigobjects.txt
Step 3a Combine both text files to get file name/sha1/size information:
for SHA in `cut -f 1 -d\ < bigobjects.txt`; do
echo $(grep $SHA bigobjects.txt) $(grep $SHA allfileshas.txt) | awk '{print $1,$3,$7}' >> bigtosmall.txt
done;
Step 3b If you have file names or path names containing spaces try this variation of Step 3a. It uses cut
instead of awk
to get the desired columns incl. spaces from column 7 to end of line:
for SHA in `cut -f 1 -d\ < bigobjects.txt`; do
echo $(grep $SHA bigobjects.txt) $(grep $SHA allfileshas.txt) | cut -d ' ' -f'1,3,7-' >> bigtosmall.txt
done;
Now you can look at the file bigtosmall.txt in order to decide which files you want to remove from your Git history.
Step 4 To perform the removal (note this part is slow since it's going to examine every commit in your history for data about the file you identified):
git filter-branch --tree-filter 'rm -f myLargeFile.log' HEAD
Source
Steps 1-3a were copied from Finding and Purging Big Files From Git History
EDIT
The article was deleted sometime in the second half of 2017, but an archived copy of it can still be accessed using the Wayback Machine.
Well, technically it's not possible to get :before
and :after
pseudo elements work on input
elements
From W3C:
12.1 The :before and :after pseudo-elements
Authors specify the style and location of generated content with the :before and :after pseudo-elements. As their names indicate, the :before and :after pseudo-elements specify the location of content before and after an element's document tree content. The 'content' property, in conjunction with these pseudo-elements, specifies what is inserted.
So I had a project where I had submit buttons in the form of input
tags and for some reason the other developers restricted me to use <button>
tags instead of the usual input submit buttons, so I came up with another solution, of wrapping the buttons inside a span
set to position: relative;
and then absolutely positioning the icon using :after
pseudo.
Note: The demo fiddle uses the content code for FontAwesome 3.2.1 so you may need to change the value of
content
property accordingly.
HTML
<span><input type="submit" value="Send" class="btn btn-default" /></span>
CSS
input[type="submit"] {
margin: 10px;
padding-right: 30px;
}
span {
position: relative;
}
span:after {
font-family: FontAwesome;
content: "\f004"; /* Value may need to be changed in newer version of font awesome*/
font-size: 13px;
position: absolute;
right: 20px;
top: 1px;
pointer-events: none;
}
Now here everything is self explanatory here, about one property i.e pointer-events: none;
, I've used that because on hovering over the :after
pseudo generated content, your button won't click, so using the value of none
will force the click action to go pass through that content.
From Mozilla Developer Network :
In addition to indicating that the element is not the target of mouse events, the value none instructs the mouse event to go "through" the element and target whatever is "underneath" that element instead.
Hover the heart font/icon Demo and see what happens if you DON'T use pointer-events: none;
There is another way. If you're passing an object by reference, that object's properties will appear in the function's local scope. I know this works for Safari (haven't checked other browsers) and I don't know if this feature has a name, but the below example illustrates its use.
Although in practice I don't think that this offers any functional value beyond the technique you're already using, it's a little cleaner semantically. And it still requires passing a object reference or an object literal.
function sum({ a:a, b:b}) {
console.log(a+'+'+b);
if(a==undefined) a=0;
if(b==undefined) b=0;
return (a+b);
}
// will work (returns 9 and 3 respectively)
console.log(sum({a:4,b:5}));
console.log(sum({a:3}));
// will not work (returns 0)
console.log(sum(4,5));
console.log(sum(4));
Node.js is a javascript motor for the server side.
In addition to all the js capabilities, it includes networking capabilities (like HTTP), and access to the file system.
This is different from client-side js where the networking tasks are monopolized by the browser, and access to the file system is forbidden for security reasons.
Something that runs in the server, understands HTTP and can access files sounds like a web server. But it isn't one.
To make node.js behave like a web server one has to program it: handle the incoming HTTP requests and provide the appropriate responses.
This is what Express does: it's the implementation of a web server in js.
Thus, implementing a web site is like configuring Express routes, and programming the site's specific features.
Serving pages involves a number of tasks. Many of those tasks are well known and very common, so node's Connect module (one of the many modules available to run under node) implements those tasks.
See the current impressing offering:
Connect is the framework and through it you can pick the (sub)modules you need.
The Contrib Middleware page enumerates a long list of additional middlewares.
Express itself comes with the most common Connect middlewares.
Install node.js.
Node comes with npm, the node package manager.
The command npm install -g express
will download and install express globally (check the express guide).
Running express foo
in a command line (not in node) will create a ready-to-run application named foo. Change to its (newly created) directory and run it with node with the command node <appname>
, then open http://localhost:3000
and see.
Now you are in.
The new testing improvements that debuted in Spring Boot 1.4.M2
can help reduce the amount of code you need to write situation such as these.
The test would look like so:
import static org.springframework.test.web.servlet.request.MockMvcRequestB??uilders.get;
import static org.springframework.test.web.servlet.result.MockMvcResultMat??chers.content;
import static org.springframework.test.web.servlet.result.MockMvcResultMat??chers.status;
@RunWith(SpringRunner.class)
@WebMvcTest(HelloWorld.class)
public class UserVehicleControllerTests {
@Autowired
private MockMvc mockMvc;
@Test
public void testSayHelloWorld() throws Exception {
this.mockMvc.perform(get("/").accept(MediaType.parseMediaType("application/json;charset=UTF-8")))
.andExpect(status().isOk())
.andExpect(content().contentType("application/json"));
}
}
See this blog post for more details as well as the documentation
public static void ExportToExcel(DataGridView dgView)
{
Microsoft.Office.Interop.Excel.Application excelApp = null;
try
{
// instantiating the excel application class
excelApp = new Microsoft.Office.Interop.Excel.Application();
Microsoft.Office.Interop.Excel.Workbook currentWorkbook = excelApp.Workbooks.Add(Type.Missing);
Microsoft.Office.Interop.Excel.Worksheet currentWorksheet = (Microsoft.Office.Interop.Excel.Worksheet)currentWorkbook.ActiveSheet;
currentWorksheet.Columns.ColumnWidth = 18;
if (dgView.Rows.Count > 0)
{
currentWorksheet.Cells[1, 1] = DateTime.Now.ToString("s");
int i = 1;
foreach (DataGridViewColumn dgviewColumn in dgView.Columns)
{
// Excel work sheet indexing starts with 1
currentWorksheet.Cells[2, i] = dgviewColumn.Name;
++i;
}
Microsoft.Office.Interop.Excel.Range headerColumnRange = currentWorksheet.get_Range("A2", "G2");
headerColumnRange.Font.Bold = true;
headerColumnRange.Font.Color = 0xFF0000;
//headerColumnRange.EntireColumn.AutoFit();
int rowIndex = 0;
for (rowIndex = 0; rowIndex < dgView.Rows.Count; rowIndex++)
{
DataGridViewRow dgRow = dgView.Rows[rowIndex];
for (int cellIndex = 0; cellIndex < dgRow.Cells.Count; cellIndex++)
{
currentWorksheet.Cells[rowIndex + 3, cellIndex + 1] = dgRow.Cells[cellIndex].Value;
}
}
Microsoft.Office.Interop.Excel.Range fullTextRange = currentWorksheet.get_Range("A1", "G" + (rowIndex + 1).ToString());
fullTextRange.WrapText = true;
fullTextRange.HorizontalAlignment = Microsoft.Office.Interop.Excel.XlHAlign.xlHAlignLeft;
}
else
{
string timeStamp = DateTime.Now.ToString("s");
timeStamp = timeStamp.Replace(':', '-');
timeStamp = timeStamp.Replace("T", "__");
currentWorksheet.Cells[1, 1] = timeStamp;
currentWorksheet.Cells[1, 2] = "No error occured";
}
using (SaveFileDialog exportSaveFileDialog = new SaveFileDialog())
{
exportSaveFileDialog.Title = "Select Excel File";
exportSaveFileDialog.Filter = "Microsoft Office Excel Workbook(*.xlsx)|*.xlsx";
if (DialogResult.OK == exportSaveFileDialog.ShowDialog())
{
string fullFileName = exportSaveFileDialog.FileName;
// currentWorkbook.SaveCopyAs(fullFileName);
// indicating that we already saved the workbook, otherwise call to Quit() will pop up
// the save file dialogue box
currentWorkbook.SaveAs(fullFileName, Microsoft.Office.Interop.Excel.XlFileFormat.xlOpenXMLWorkbook, System.Reflection.Missing.Value, Missing.Value, false, false, Microsoft.Office.Interop.Excel.XlSaveAsAccessMode.xlNoChange, Microsoft.Office.Interop.Excel.XlSaveConflictResolution.xlUserResolution, true, Missing.Value, Missing.Value, Missing.Value);
currentWorkbook.Saved = true;
MessageBox.Show("Error memory exported successfully", "Exported to Excel", MessageBoxButtons.OK, MessageBoxIcon.Information);
}
}
}
catch (Exception ex)
{
MessageBox.Show(ex.Message, "Exception", MessageBoxButtons.OK, MessageBoxIcon.Error);
}
finally
{
if (excelApp != null)
{
excelApp.Quit();
}
}
}
UPDATE 9 July 2012 - Looks like this is fixed in RTM.
^
and $
so you don't need to add them. (It doesn't appear to be a problem to include them, but you don't need them)View source shows the following:
data-val-regex-pattern="([a-zA-Z0-9 .&'-]+)" <-- MVC 3
data-val-regex-pattern="([a-zA-Z0-9 .&amp;&#39;-]+)" <-- MVC 4/Beta
It looks like we're double encoding.
Use htmlspecialchars(). Then quote and less / greater than symbols don't break your HTML tags~
If you are not tweaking the curl command too much you can also go and call the curl command directly
import shlex
cmd = '''curl -X POST -d '{"nw_src": "10.0.0.1/32", "nw_dst": "10.0.0.2/32", "nw_proto": "ICMP", "actions": "ALLOW", "priority": "10"}' http://localhost:8080/firewall/rules/0000000000000001'''
args = shlex.split(cmd)
process = subprocess.Popen(args, shell=False, stdout=subprocess.PIPE, stderr=subprocess.PIPE)
stdout, stderr = process.communicate()
I've worked on various winform projects and as the applications gets more complex (more dialogs and interactions between them) then i've started to use some eventing system to help me out, because management of opening and closing windows manually will be hard to maintain and develope further.
I've used CAB for my applications, it has an eventing system but it might be an overkill in your case :) You could write your own events for simpler applications
object.runtimeType
returns the type of object
For example:
print("HELLO".runtimeType); //prints String
var x=0.0;
print(x.runtimeType); //prints double
Using mongoose.js you can count documents,
const count = await Schema.countDocuments();
const count = await Schema.countDocuments({ key: value });
If you want to due this in component.ts
HTML:
<button class="class1 class2" (click)="clicked($event)">Click me</button>
Component:
clicked(event) {
event.target.classList.add('class3'); // To ADD
event.target.classList.remove('class1'); // To Remove
event.target.classList.contains('class2'); // To check
event.target.classList.toggle('class4'); // To toggle
}
For more options, examples and browser compatibility visit this link.
If 'somescript.py' isn't something you could normally execute directly from the command line (I.e., $: somescript.py
works), then you can't call it directly using call.
Remember that the way Popen works is that the first argument is the program that it executes, and the rest are the arguments passed to that program. In this case, the program is actually python, not your script. So the following will work as you expect:
subprocess.call(['python', 'somescript.py', somescript_arg1, somescript_val1,...]).
This correctly calls the Python interpreter and tells it to execute your script with the given arguments.
Note that this is different from the above suggestion:
subprocess.call(['python somescript.py'])
That will try to execute the program called python somscript.py, which clearly doesn't exist.
call('python somescript.py', shell=True)
Will also work, but using strings as input to call is not cross platform, is dangerous if you aren't the one building the string, and should generally be avoided if at all possible.
I think your problem is your version numbers. Try making 8.1 --> 8.01, and so forth. That should put the points in the right order.
Alternatively, you could plot using X
, where X is the column number you want, instead of using 1:X
. That will plot those values on the y axis and integers on the x axis. Try:
plot "ls.dat" using 2 title 'Removed' with lines, \
"ls.dat" using 3 title 'Added' with lines, \
"ls.dat" using 4 title 'Modified' with lines
After formatting the previous answer to my own code, I have found an efficient way to copy all necessary data if you are attempting to paste the values returned via AutoFilter
to a separate sheet.
With .Range("A1:A" & LastRow)
.Autofilter Field:=1, Criteria1:="=*" & strSearch & "*"
.Offset(1,0).SpecialCells(xlCellTypeVisible).Cells.Copy
Sheets("Sheet2").activate
DestinationRange.PasteSpecial
End With
In this block, the AutoFilter
finds all of the rows that contain the value of strSearch
and filters out all of the other values. It then copies the cells (using offset in case there is a header), opens the destination sheet and pastes the values to the specified range on the destination sheet.
I wrote a shellscript that solves this problem for multiple websites: https://github.com/eduardschaeli/wget-image-scraper
(Scrapes images from a list of urls with wget)
You can simply use javascript like this. Otherwise you can use momentJs Plugin which helps in large application.
new Date().getDate() // Get the day as a number (1-31)
new Date().getDay() // Get the weekday as a number (0-6)
new Date().getFullYear() // Get the four digit year (yyyy)
new Date().getHours() // Get the hour (0-23)
new Date().getMilliseconds() // Get the milliseconds (0-999)
new Date().getMinutes() // Get the minutes (0-59)
new Date().getMonth() // Get the month (0-11)
new Date().getSeconds() // Get the seconds (0-59)
new Date().getTime() // Get the time (milliseconds since January 1, 1970)
function generate(type,element)_x000D_
{_x000D_
var value = "";_x000D_
var date = new Date();_x000D_
switch (type) {_x000D_
case "Date":_x000D_
value = date.getDate(); // Get the day as a number (1-31)_x000D_
break;_x000D_
case "Day":_x000D_
value = date.getDay(); // Get the weekday as a number (0-6)_x000D_
break;_x000D_
case "FullYear":_x000D_
value = date.getFullYear(); // Get the four digit year (yyyy)_x000D_
break;_x000D_
case "Hours":_x000D_
value = date.getHours(); // Get the hour (0-23)_x000D_
break;_x000D_
case "Milliseconds":_x000D_
value = date.getMilliseconds(); // Get the milliseconds (0-999)_x000D_
break;_x000D_
case "Minutes":_x000D_
value = date.getMinutes(); // Get the minutes (0-59)_x000D_
break;_x000D_
case "Month":_x000D_
value = date.getMonth(); // Get the month (0-11)_x000D_
break;_x000D_
case "Seconds":_x000D_
value = date.getSeconds(); // Get the seconds (0-59)_x000D_
break;_x000D_
case "Time":_x000D_
value = date.getTime(); // Get the time (milliseconds since January 1, 1970)_x000D_
break;_x000D_
}_x000D_
_x000D_
$(element).siblings('span').text(value);_x000D_
}
_x000D_
li{_x000D_
list-style-type: none;_x000D_
padding: 5px;_x000D_
}_x000D_
_x000D_
button{_x000D_
width: 150px;_x000D_
}_x000D_
_x000D_
span{_x000D_
margin-left: 100px;_x000D_
}
_x000D_
<script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/3.3.1/jquery.min.js"></script>_x000D_
_x000D_
_x000D_
<ul>_x000D_
<li>_x000D_
<button type="button" onclick="generate('Date',this)">Get Date</button>_x000D_
<span></span>_x000D_
</li>_x000D_
<li>_x000D_
<button type="button" onclick="generate('Day',this)">Get Day</button>_x000D_
<span></span>_x000D_
</li>_x000D_
<li>_x000D_
<button type="button" onclick="generate('FullYear',this)">Get Full Year</button>_x000D_
<span></span>_x000D_
</li>_x000D_
<li>_x000D_
<button type="button" onclick="generate('Hours',this)">Get Hours</button>_x000D_
<span></span>_x000D_
</li>_x000D_
<li>_x000D_
<button type="button" onclick="generate('Milliseconds',this)">Get Milliseconds</button>_x000D_
<span></span>_x000D_
</li>_x000D_
_x000D_
<li>_x000D_
<button type="button" onclick="generate('Minutes',this)">Get Minutes</button>_x000D_
<span></span>_x000D_
</li>_x000D_
<li>_x000D_
<button type="button" onclick="generate('Month',this)">Get Month</button>_x000D_
<span></span>_x000D_
</li>_x000D_
<li>_x000D_
<button type="button" onclick="generate('Seconds',this)">Get Seconds</button>_x000D_
<span></span>_x000D_
</li>_x000D_
<li>_x000D_
<button type="button" onclick="generate('Time',this)">Get Time</button>_x000D_
<span></span>_x000D_
</li>_x000D_
</ul>
_x000D_
DateTime dt1 = this.dateTimePicker1.Value.Date;
DateTime dt2 = this.dateTimePicker2.Value.Date.AddMinutes(1440);
String query = "SELECT * FROM student WHERE sdate BETWEEN '" + dt1 + "' AND '" + dt2 + "'";
Low level system programming is a reasonable example.
IIRC, I've used unions to breakdown hardware registers into the component bits. So, you can access an 8-bit register (as it was, in the day I did this ;-) into the component bits.
(I forget the exact syntax but...) This structure would allow a control register to be accessed as a control_byte or via the individual bits. It would be important to ensure the bits map on to the correct register bits for a given endianness.
typedef union {
unsigned char control_byte;
struct {
unsigned int nibble : 4;
unsigned int nmi : 1;
unsigned int enabled : 1;
unsigned int fired : 1;
unsigned int control : 1;
};
} ControlRegister;
You may also try mongoosejs's lean() :
UserModel.find().lean().exec(function (err, users) {
return res.end(JSON.stringify(users));
}
In Access 2013. Drop a "Text Box" control onto your form. On the Property Sheet for the control under the Format tab find the Format property. Set this to one of the date format options. Job's done.
You can also extract the event code from the HTML, like this :
<input type="checkbox" id="check_all_1" name="check_all_1" title="Select All" />
<label for="check_all_1">Select All</label>
<script>
function selectAll(frmElement, chkElement) {
// ...
}
document.getElementById("check_all_1").onclick = function() {
selectAll(document.wizard_form, this);
}
</script>
@martinho as a newbie using Flask and Python myself, I think the previous answers here took for granted that you had a good understanding of the fundamentals. In case you or other viewers don't know the fundamentals, I'll give more context to understand the answer...
... the request.args
is bringing a "dictionary" object for you. The "dictionary" object is similar to other collection-type of objects in Python, in that it can store many elements in one single object. Therefore the answer to your question
And how many parameters
request.args.get()
takes.
It will take only one object, a "dictionary" type of object (as stated in the previous answers). This "dictionary" object, however, can have as many elements as needed... (dictionaries have paired elements called Key, Value).
Other collection-type of objects besides "dictionaries", would be "tuple", and "list"... you can run a google search on those and "data structures" in order to learn other Python fundamentals. This answer is based Python; I don't have an idea if the same applies to other programming languages.
function showstuff(boxid){
document.getElementById(boxid).style.visibility="visible";
}
<button onclick="showstuff('id_to_show');" />
This will help you, I think.
you should add plug in to your local setting of firefox in your user home
vladimir@shinsengumi ~/.mozilla/plugins $ pwd
/home/vladimir/.mozilla/plugins
vladimir@shinsengumi ~/.mozilla/plugins $ ls -ltr
lrwxrwxrwx 1 vladimir vladimir 60 Jan 1 23:06 libnpjp2.so -> /home/vladimir/Install/jdk1.6.0_32/jre/lib/amd64/libnpjp2.so
You need to get the HttpRequestMessage from the current OperationContext. Using OperationContext you can do it like so
OperationContext context = OperationContext.Current;
MessageProperties messageProperties = context.IncomingMessageProperties;
HttpRequestMessageProperty requestProperty = messageProperties[HttpRequestMessageProperty.Name] as HttpRequestMessageProperty;
string customHeaderValue = requestProperty.Headers["Custom"];
If using a third-party library is an option, MoreLinq defines TakeLast()
which does exactly this.
if nothing else is present. you can launch an xterm and echo in it, like this:
xterm -e bash -c 'echo "this is the message";echo;echo -n "press enter to continue "; stty sane -echo;answer=$( while ! head -c 1;do true ;done);'
create a new folder in your android studio parent directory folder. Name it sdk or whatever you want. Select that folder from the drop down list when asked. Thats what solves it for me.
It may be due to the access of the tomcat installation path(C:\Program Files\Apache Software Foundation\Tomcat 9.0) wasn't available with the current user.
Firstly you don't do this in your view. You do it in the controller and return a view model to the view so that the view doesn't need to care about custom HTTP headers but just displaying data on the view model:
public ActionResult Index()
{
var xyzComponent = Request.Headers["xyzComponent"];
var model = new MyModel
{
IsCustomHeaderSet = (xyzComponent != null)
}
return View(model);
}
It's looking for the file in the current directory.
First, go to that directory
cd /users/gcameron/Desktop/map
And then try to run it
python colorize_svg.py
We can take ZOOM approach. We can assume that max 30% (or more upto 100%) can be the zooming effect if aspect image height OR width is less than the desired height OR width. We can hide the rest not needed area with overflow: hidden.
.image-container {
width: 200px;
height: 150px;
overflow: hidden;
}
.stage-image-gallery a img {
max-height: 130%;
max-width: 130%;
position: relative;
top: 50%;
left: 50%;
transform: translateX(-50%) translateY(-50%);
}
This will adjust images with different width OR height.
usually __iter__()
just return self if you have already define the next() method (generator object):
here is a Dummy example of a generator :
class Test(object):
def __init__(self, data):
self.data = data
def next(self):
if not self.data:
raise StopIteration
return self.data.pop()
def __iter__(self):
return self
but __iter__()
can also be used like this:
http://mail.python.org/pipermail/tutor/2006-January/044455.html
Considering everyone is posting older ways of hiding the ActionBar here is the proper way of implementing it within styles for AppCompat support library. Which I highly suggest moving toward if you haven't already.
Simply removing the ActionBar
<style name="AppTheme" parent="Theme.AppCompat.Light.NoActionBar">
</style>
If you are using the appcompat support libraries, this is the easiest and recommended way of hiding the ActionBar to make full screen or start implementing to toolbar within your layouts.
<style name="AppTheme" parent="Theme.AppCompat.Light.NoActionBar">
<!-- Your Toolbar Color-->
<item name="colorPrimary">@color/primary</item>
<!-- colorPrimaryDark is used for the status bar -->
<item name="colorPrimaryDark">@color/primary_dark</item>
<!-- colorAccent is used as the default value for colorControlActivated,
which is used to tint widgets -->
<item name="colorAccent">@color/accent</item>
<!-- You can also set colorControlNormal, colorControlActivated
colorControlHighlight, and colorSwitchThumbNormal. -->
</style>
Then to change your toolbar color
<android.support.v7.widget.Toolbar
android:id=”@+id/my_awesome_toolbar”
android:layout_height=”wrap_content”
android:layout_width=”match_parent”
android:minHeight=”?attr/actionBarSize”
android:background=”?attr/primary” />
Last note: Your Activity class should extend AppCompatActivity
public class MainActivity extends AppCompatActivity {
<!--Activity Items -->
}
If you are simply checking for the existence of an ID, there is no need to go into jQuery, you could simply:
if(document.getElementById("yourid") !== null)
{
}
getElementById
returns null
if it can't be found.
If however you plan to use the jQuery object later i'd suggest:
$(document).ready(function() {
var $myDiv = $('#DivID');
if ( $myDiv.length){
//you can now reuse $myDiv here, without having to select it again.
}
});
A selector always returns a jQuery object, so there shouldn't be a need to check against null
(I'd be interested if there is an edge case where you need to check for null
- but I don't think there is).
If the selector doesn't find anything then length === 0
which is "falsy" (when converted to bool its false). So if it finds something then it should be "truthy" - so you don't need to check for > 0. Just for it's "truthyness"
string s = "" + 2;
and you can do nice things like:
string s = 2 + 2 + "you"
The result will be:
"4 you"
Why does it take three branches/merges for every task? Can you explain more about that?
If you use a bug tracking system you can use the bug number as part of the branch name. This will keep the branch names unique, and you can prefix them with a short and descriptive word or two to keep them human readable, like "ResizeWindow-43523"
. It also helps make things easier when you go to clean up branches, since you can look up the associated bug. This is how I usually name my branches.
Since these branches are eventually getting merged back into master, you should be safe deleting them after you merge. Unless you're merging with --squash
, the entire history of the branch will still exist should you ever need it.
I have used Sphinx, Solr and Elasticsearch. Solr/Elasticsearch are built on top of Lucene. It adds many common functionality: web server api, faceting, caching, etc.
If you want to just have a simple full text search setup, Sphinx is a better choice.
If you want to customize your search at all, Elasticsearch and Solr are the better choices. They are very extensible: you can write your own plugins to adjust result scoring.
Some example usages:
Workaround - Open a modal popup window and embed the external URL as an iframe.
This is probably the simplest way:
data$rownumber = 1:dim(data)[1]
It's probably worth noting that if you want to select a row by its row index, you can do this with simple bracket notation
data[3,]
vs.
data[data$rownumber==3,]
So I'm not really sure what this new column accomplishes.
Check out yowsup
https://github.com/tgalal/yowsup
Yowsup is a python library that allows you to do all the previous in your own app. Yowsup allows you to login and use the Whatsapp service and provides you with all capabilities of an official Whatsapp client, allowing you to create a full-fledged custom Whatsapp client.
A solid example of Yowsup's usage is Wazapp. Wazapp is full featured Whatsapp client that is being used by hundreds of thousands of people around the world. Yowsup is born out of the Wazapp project. Before becoming a separate project, it was only the engine powering Wazapp. Now that it matured enough, it was separated into a separate project, allowing anyone to build their own Whatsapp client on top of it. Having such a popular client as Wazapp, built on Yowsup, helped bring the project into a much advanced, stable and mature level, and ensures its continuous development and maintaince.
Yowsup also comes with a cross platform command-line frontend called yowsup-cli. yowsup-cli allows you to jump into connecting and using Whatsapp service directly from command line.
Best solution for this is to download and install VCforPython2.7 from https://www.microsoft.com/en-us/download/details.aspx?id=44266
Then try pip install numpy
Let me guess
Your initial declaration of class PUBLICClass
was not public, then you made it `Public', can you try to clean and rebuild your project ?
You can only access final variables from the containing class when using an anonymous class. Therefore you need to declare the variables being used final (which is not an option for you since you are changing lastPrice and price), or don't use an anonymous class.
So your options are to create an actual inner class, in which you can pass in the variables and use them in a normal fashion
or:
There is a quick (and in my opinion ugly) hack for your lastPrice and price variable which is to declare it like so
final double lastPrice[1];
final double price[1];
and in your anonymous class you can set the value like this
price[0] = priceObject.getNextPrice(lastPrice[0]);
System.out.println();
lastPrice[0] = price[0];
Simply define vertical-align
property for the icon element:
div .icon {
vertical-align: middle;
}
If you don't want to re-encode your video AND your player can handle rotation metadata you can just change the rotation in the metadata using ffmpeg:
ffmpeg -i input.m4v -map_metadata 0 -metadata:s:v rotate="90" -codec copy output.m4v
Other configurable Spark option relating to jars and classpath, in case of yarn
as deploy mode are as follows
From the spark documentation,
spark.yarn.jars
List of libraries containing Spark code to distribute to YARN containers. By default, Spark on YARN will use Spark jars installed locally, but the Spark jars can also be in a world-readable location on HDFS. This allows YARN to cache it on nodes so that it doesn't need to be distributed each time an application runs. To point to jars on HDFS, for example, set this configuration to hdfs:///some/path. Globs are allowed.
spark.yarn.archive
An archive containing needed Spark jars for distribution to the YARN cache. If set, this configuration replaces spark.yarn.jars and the archive is used in all the application's containers. The archive should contain jar files in its root directory. Like with the previous option, the archive can also be hosted on HDFS to speed up file distribution.
Users can configure this parameter to specify their jars, which inturn gets included in Spark driver's classpath.
The suggested regex will not validate the date, only the pattern.
So 99.99.9999 will pass the regex.
You later specified that you only need to validate the pattern but I still think it is more useful to create a date object
function isDate(str) { _x000D_
var parms = str.split(/[\.\-\/]/);_x000D_
var yyyy = parseInt(parms[2],10);_x000D_
var mm = parseInt(parms[1],10);_x000D_
var dd = parseInt(parms[0],10);_x000D_
var date = new Date(yyyy,mm-1,dd,0,0,0,0);_x000D_
return mm === (date.getMonth()+1) && dd === date.getDate() && yyyy === date.getFullYear();_x000D_
}_x000D_
var dates = [_x000D_
"13-09-2011", _x000D_
"13.09.2011",_x000D_
"13/09/2011",_x000D_
"08-08-1991",_x000D_
"29/02/2011"_x000D_
]_x000D_
_x000D_
for (var i=0;i<dates.length;i++) {_x000D_
console.log(dates[i]+':'+isDate(dates[i]));_x000D_
}
_x000D_
I've found that you can use any subset condition for a given column by wrapping it in []. For instance, you have a df with columns ['Product','Time', 'Year', 'Color']
And let's say you want to include products made before 2014. You could write,
df[df['Year'] < 2014]
To return all the rows where this is the case. You can add different conditions.
df[df['Year'] < 2014][df['Color' == 'Red']
Then just choose the columns you want as directed above. For instance, the product color and key for the df above,
df[df['Year'] < 2014][df['Color'] == 'Red'][['Product','Color']]
Simple solution:
<iframe onload="this.style.height=this.contentWindow.document.body.scrollHeight + 'px';" ...></iframe>
This works when the iframe and parent window are in the same domain. It does not work when the two are in different domains.
man git-checkout: git checkout A
In order to avoid troubles compiling third party libraries that need boost installed in your system, run this:
sudo port install boost +universal
Variables declared globally have a global scope. Variables declared within a function are scoped to that function, and shadow global variables of the same name.
(I'm sure there are many subtleties that real JavaScript programmers will be able to point out in other answers. In particular I came across this page about what exactly this
means at any time. Hopefully this more introductory link is enough to get you started though.)
SET PASSWORD FOR 'root'@'localhost' = PASSWORD('');
let urlString = "http://heyhttp.org/me.json"
var request = URLRequest(url: URL(string: urlString)!)
let session = URLSession.shared
session.dataTask(with: request) {data, response, error in
if error != nil {
print(error!.localizedDescription)
return
}
do {
let jsonResult: NSDictionary? = try JSONSerialization.jsonObject(with: data!, options: JSONSerialization.ReadingOptions.mutableContainers) as? NSDictionary
print("Synchronous\(jsonResult)")
} catch {
print(error.localizedDescription)
}
}.resume()
You can try with Directory.GetFiles and fix your pattern
string[] files = Directory.GetFiles(@"c:\", "*.txt");
foreach (string file in files)
{
File.Copy(file, "....");
}
Or Move
foreach (string file in files)
{
File.Move(file, "....");
}
There is a nice library w3lib.url
from w3lib.url import url_query_parameter
url = "/abc?def=ghi"
print url_query_parameter(url, 'def')
ghi
Firstly check for page is loaded completely in
browser,window.location.toString();
window.location.href
then call a function which takes url, URL variable and prints on console,
$(window).load(function(){
var url = window.location.href.toString();
var URL = document.URL;
var wayThreeUsingJQuery = $(location).attr('href');
console.log(url);
console.log(URL);
console.log(wayThreeUsingJQuery );
});
-R
i.e Recursive permissions.But I would suggest not to give 777 permission to all folder and it's all contents. You should give specific permission to each sub-folder in www directory folders.
755
permission for security reasons to the web folder.sudo chmod -R 755 /www/store
Each number has meaning in permission. Do not give full permission.
N Description ls binary
0 No permissions at all --- 000
1 Only execute --x 001
2 Only write -w- 010
3 Write and execute -wx 011
4 Only read r-- 100
5 Read and execute r-x 101
6 Read and write rw- 110
7 Read, write, and execute rwx 111
If your production web folder has multiple users, then you can set permissions and user groups accordingly.
More info :
Please read this official blog entry on Google developer blog: http://android-developers.blogspot.be/2011/03/identifying-app-installations.html
Conclusion For the vast majority of applications, the requirement is to identify a particular installation, not a physical device. Fortunately, doing so is straightforward.
There are many good reasons for avoiding the attempt to identify a particular device. For those who want to try, the best approach is probably the use of ANDROID_ID on anything reasonably modern, with some fallback heuristics for legacy devices
.
I prefer using HTTP Headers for this kind of contextual information.
For the total number of elements, I use the X-total-count
header.
For links to next, previous page, etc. I use HTTP Link
header:
http://www.w3.org/wiki/LinkHeader
Github does it the same way: https://developer.github.com/v3/#pagination
In my opinion, it's cleaner since it can be used also when you return content that doesn't support hyperlinks (i.e binaries, pictures).
One solution would be to use the plt.legend
function, even if you don't want an actual legend. You can specify the placement of the legend box by using the loc
keyterm. More information can be found at this website but I've also included an example showing how to place a legend:
ax.scatter(xa,ya, marker='o', s=20, c="lightgreen", alpha=0.9)
ax.scatter(xb,yb, marker='o', s=20, c="dodgerblue", alpha=0.9)
ax.scatter(xc,yc marker='o', s=20, c="firebrick", alpha=1.0)
ax.scatter(xd,xd,xd, marker='o', s=20, c="goldenrod", alpha=0.9)
line1 = Line2D(range(10), range(10), marker='o', color="goldenrod")
line2 = Line2D(range(10), range(10), marker='o',color="firebrick")
line3 = Line2D(range(10), range(10), marker='o',color="lightgreen")
line4 = Line2D(range(10), range(10), marker='o',color="dodgerblue")
plt.legend((line1,line2,line3, line4),('line1','line2', 'line3', 'line4'),numpoints=1, loc=2)
Note that because loc=2
, the legend is in the upper-left corner of the plot. And if the text overlaps with the plot, you can make it smaller by using legend.fontsize
, which will then make the legend smaller.
For image purpose you can do something like this
img {
width: calc(100% + 20px); // twice the value of the parent's padding
margin-left: -10px; // -1 * parent's padding
}
I think Django docs explicitly mention that if the intent is to start from an empty DB again (which seems to be OP's intent), then just drop and re-create the database and re-run migrate
(instead of using flush
):
If you would rather start from an empty database and re-run all migrations, you should drop and recreate the database and then run migrate instead.
So for OP's case, we just need to:
python manage.py migrate
TLDR: Use map
(returning undefined
when needed) and then filter
.
First, I believe that a map + filter function is useful since you don't want to repeat a computation in both. Swift originally called this function flatMap
but then renamed it to compactMap
.
For example, if we don't have a compactMap
function, we might end up with computation
defined twice:
let array = [1, 2, 3, 4, 5, 6, 7, 8];
let mapped = array
.filter(x => {
let computation = x / 2 + 1;
let isIncluded = computation % 2 === 0;
return isIncluded;
})
.map(x => {
let computation = x / 2 + 1;
return `${x} is included because ${computation} is even`
})
// Output: [2 is included because 2 is even, 6 is included because 4 is even]
Thus compactMap
would be useful to reduce duplicate code.
A really simple way to do something similar to compactMap
is to:
undefined
.undefined
values.This of course relies on you never needing to return undefined values as part of your original map function.
Example:
let array = [1, 2, 3, 4, 5, 6, 7, 8];
let mapped = array
.map(x => {
let computation = x / 2 + 1;
let isIncluded = computation % 2 === 0;
if (isIncluded) {
return `${x} is included because ${computation} is even`
} else {
return undefined
}
})
.filter(x => typeof x !== "undefined")
As far as I know, there isn't any better way in terms of working with Reflection library in a smarter way. However, you could use LINQ to make the code a bit nicer:
var props = from p in t.GetProperties()
let attrs = p.GetCustomAttributes(typeof(MyAttribute), true)
where attrs.Length != 0 select p;
// Do something with the properties in 'props'
I believe this helps you to structure the code in a more readable fashion.