For me change Code Signing Identity
to all iOS Developer
for both of Debug
and Release
.
And Code Signing Style
to Automatic
.
If you are sure that you selected the Generic iOS device
and still can't see the option, then you simply have to restart Xcode.
This was the missing solution for me as a cordova developer with Xcode 11.2
I had this same issue now and found that my sub-projects 'Public Header Folder Path' was set to an incorrect path (when compared with what my main project was using as its 'Header Search Path' and 'User Header Search Path').
e.g.
My main project had the following:
And the same for the User Header Search Paths
Whereas my sub-project (dependency) had the following:
Changing the 'Public Header Folder Path' to "../../Headers/BoxSDK" fixed the problem since the main project was already searching that folder ('../../Headers').
PS: I took some good screenshots, but I am not allowed to post an answer with images until I hit reputation 10 :(
Are you opening the workspace (that was generated by CocoaPods) instead of the xcodeproj?
You can also pipe in the file names which might be useful:
find /path/to/files -name \*.txt | tar -cvf allfiles.tar -T -
The first argument to a shell script is available as the variable $1
, so the simplest implementation would be
if [ "$1" == "-h" ]; then
echo "Usage: `basename $0` [somestuff]"
exit 0
fi
But what anubhava said.
If you are using Python 3.2 or later:
import zipfile
with zipfile.ZipFile("file.zip","r") as zip_ref:
zip_ref.extractall("targetdir")
You dont need to use the close or try/catch with this as it uses the context manager construction.
To delete via SQL
Item.delete_all # accepts optional conditions
To delete by calling each model's destroy method (expensive but ensures callbacks are called)
Item.destroy_all # accepts optional conditions
All here
For me, the most easy way is:
#include <boost/timer.hpp>
boost::timer t;
double duration;
t.restart();
/* DO SOMETHING HERE... */
duration = t.elapsed();
t.restart();
/* DO OTHER STUFF HERE... */
duration = t.elapsed();
using this piece of code you don't have to do the classic end - start
.
Enjoy your favorite approach.
I have many sites with this issue & finally found a fix to firefox fonts being thicker than chrome.
You need this line next to your -webkit fix -moz-osx-font-smoothing: grayscale;
body{
text-rendering: optimizeLegibility;
-webkit-font-smoothing: subpixel-antialiased;
-webkit-font-smoothing: antialiased;
-moz-osx-font-smoothing: grayscale;
}
if you use the site http://www.lfd.uci.edu/~gohlke/pythonlibs/#mysql-python , download the file:
mysqlclient-1.3.6-cp34-none-win32.whl or
mysqlclient-1.3.6-cp34-none-win_amd64.whl
depending on the version of python you have (these are for python 3.4) and the type of windows you have (x64 or x32)
extract this file into C:\Python34\Lib\site-packages and your project will work
$ nvm alias default {NODE_VERSION}
when we use the above command, only update the node version but the npm
still uses the old version.
Here is another solution for update the both node
and npm
, in my case i want to use node 8.9.4
and i have used the below command.
$ nvm use default 8.9.4
And the command returns the output.
Now using node v8.9.4 (npm v5.6.0)
Removing Referenced FOREIGN KEY Constraints
Assuming there is a parent and child table Relationship in SQL Server:
--First find the name of the Foreign Key Constraint:
SELECT *
FROM sys.foreign_keys
WHERE referenced_object_id = object_id('States')
--Then Find foreign keys referencing to dbo.Parent(States) table:
SELECT name AS 'Foreign Key Constraint Name',
OBJECT_SCHEMA_NAME(parent_object_id) + '.' + OBJECT_NAME(parent_object_id) AS 'Child Table'
FROM sys.foreign_keys
WHERE OBJECT_SCHEMA_NAME(referenced_object_id) = 'dbo' AND
OBJECT_NAME(referenced_object_id) = 'dbo.State'
-- Drop the foreign key constraint by its name
ALTER TABLE dbo.cities DROP CONSTRAINT FK__cities__state__6442E2C9;
-- You can also use the following T-SQL script to automatically find
--and drop all foreign key constraints referencing to the specified parent
-- table:
BEGIN
DECLARE @stmt VARCHAR(300);
-- Cursor to generate ALTER TABLE DROP CONSTRAINT statements
DECLARE cur CURSOR FOR
SELECT 'ALTER TABLE ' + OBJECT_SCHEMA_NAME(parent_object_id) + '.' +
OBJECT_NAME(parent_object_id) +
' DROP CONSTRAINT ' + name
FROM sys.foreign_keys
WHERE OBJECT_SCHEMA_NAME(referenced_object_id) = 'dbo' AND
OBJECT_NAME(referenced_object_id) = 'states';
OPEN cur;
FETCH cur INTO @stmt;
-- Drop each found foreign key constraint
WHILE @@FETCH_STATUS = 0
BEGIN
EXEC (@stmt);
FETCH cur INTO @stmt;
END
CLOSE cur;
DEALLOCATE cur;
END
GO
--Now you can drop the parent table:
DROP TABLE states;
--# Command(s) completed successfully.
Is one just an extension?
Pretty much, yes - RFC 3339 is listed as a profile of ISO 8601. Most notably RFC 3339 specifies a complete representation of date and time (only fractional seconds are optional). The RFC also has some small, subtle differences. For example truncated representations of years with only two digits are not allowed -- RFC 3339 requires 4-digit years, and the RFC only allows a period character to be used as the decimal point for fractional seconds. The RFC also allows the "T" to be replaced by a space (or other character), while the standard only allows it to be omitted (and only when there is agreement between all parties using the representation).
I wouldn't worry too much about the differences between the two, but on the off-chance your use case runs in to them, it'd be worth your while taking a glance at:
In your MySQL workbench, you can go to the left sidebar, under Management select "Users and Privileges", click root under User Accounts, the in the right section click tab "Account Limits" to increase the max queries, updates, etc, and then click tab "Administrative Roles" and check the boxes to give the account access. Hope that helps!
Premise to my answer:
Approach
Additionally, the base image can be upgraded/ the container with a complete new base image can be built at regular intervals, as the maintainer feels necessary
Advantages
In xamarin if you face this issue when you add any new sdk. The simple solution is Open your styles file and add this line.
<style name="AppTheme" parent="android:Theme.Holo.Light.DarkActionBar"></style>
It's better solution rather than adding appcompat.
For your style you need to include the css files of bootstrap, generally just before </head>
element
<link href="css/bootstrap.css" rel="stylesheet">
Next you'll need to include the js files, it's recommended to include them at the end of the document, generally before the </body>
so pages load faster.
<script src="js/jquery.js"></script>
<script src="js/bootstrap.js"></script>
Why not use
Select * From INFORMATION_SCHEMA.COLUMNS
You can make it DB specific with
Select * From DBNAME.INFORMATION_SCHEMA.COLUMNS
private static void replaceChar() {
String str = "hello world";
final String[] res = Arrays.stream(str.split(""))
.filter(s -> !s.equalsIgnoreCase("o"))
.toArray(String[]::new);
System.out.println(String.join("", res));
}
In case you have some complicated logic to filter the char, just another way instead of replace()
.
If you come across a multidimensional array that is pure data, like this one below, then you can use a single call to array_merge() to do the job via reflection:
$arrayMult = [ ['a','b'] , ['c', 'd'] ];
$arraySingle = call_user_func_array('array_merge', $arrayMult);
// $arraySingle is now = ['a','b', 'c', 'd'];
Let consider that your data are in the file values.txt
and that you want to import them in the database table myTable
then the following query does the job
COPY myTable FROM 'value.txt' (DELIMITER('|'));
https://www.postgresql.org/docs/current/static/sql-copy.html
We have just rolled our own due to limited functionality requirements on our grids. We use some JQuery here and there for some niceties like pagination and that is all we really need.
If you need something a little more fully featured you could check out ExtJs grids here.
Also MvcContrib has a grid implementation that you could check out - try here. Or more specifically here.
This works for me, I hope helps to someone.
var frm = $('#frm');
let formData = new FormData(frm[0]);
axios.post('your-url', formData)
.then(res => {
console.log({res});
}).catch(err => {
console.error({err});
});
PostgreSQL since version 9.5 has UPSERT syntax, with ON CONFLICT clause. with the following syntax (similar to MySQL)
INSERT INTO the_table (id, column_1, column_2)
VALUES (1, 'A', 'X'), (2, 'B', 'Y'), (3, 'C', 'Z')
ON CONFLICT (id) DO UPDATE
SET column_1 = excluded.column_1,
column_2 = excluded.column_2;
Searching postgresql's email group archives for "upsert" leads to finding an example of doing what you possibly want to do, in the manual:
Example 38-2. Exceptions with UPDATE/INSERT
This example uses exception handling to perform either UPDATE or INSERT, as appropriate:
CREATE TABLE db (a INT PRIMARY KEY, b TEXT);
CREATE FUNCTION merge_db(key INT, data TEXT) RETURNS VOID AS
$$
BEGIN
LOOP
-- first try to update the key
-- note that "a" must be unique
UPDATE db SET b = data WHERE a = key;
IF found THEN
RETURN;
END IF;
-- not there, so try to insert the key
-- if someone else inserts the same key concurrently,
-- we could get a unique-key failure
BEGIN
INSERT INTO db(a,b) VALUES (key, data);
RETURN;
EXCEPTION WHEN unique_violation THEN
-- do nothing, and loop to try the UPDATE again
END;
END LOOP;
END;
$$
LANGUAGE plpgsql;
SELECT merge_db(1, 'david');
SELECT merge_db(1, 'dennis');
There's possibly an example of how to do this in bulk, using CTEs in 9.1 and above, in the hackers mailing list:
WITH foos AS (SELECT (UNNEST(%foo[])).*)
updated as (UPDATE foo SET foo.a = foos.a ... RETURNING foo.id)
INSERT INTO foo SELECT foos.* FROM foos LEFT JOIN updated USING(id)
WHERE updated.id IS NULL;
See a_horse_with_no_name's answer for a clearer example.
$('td').click(function() {
var myCol = $(this).index();
var $tr = $(this).closest('tr');
var myRow = $tr.index();
});
Use the following. It works in Firefox and Internet Explorer.
<object id="MediaPlayer1" width="690" height="500" classid="CLSID:22D6F312-B0F6-11D0-94AB-0080C74C7E95"
codebase="http://activex.microsoft.com/activex/controls/mplayer/en/nsmp2inf.cab#Version=5,1,52,701"
standby="Loading Microsoft® Windows® Media Player components..." type="application/x-oleobject"
>
<param name="FileName" value='<%= GetSource() %>' />
<param name="AutoStart" value="True" />
<param name="DefaultFrame" value="mainFrame" />
<param name="ShowStatusBar" value="0" />
<param name="ShowPositionControls" value="0" />
<param name="showcontrols" value="0" />
<param name="ShowAudioControls" value="0" />
<param name="ShowTracker" value="0" />
<param name="EnablePositionControls" value="0" />
<!-- BEGIN PLUG-IN HTML FOR FIREFOX-->
<embed type="application/x-mplayer2" pluginspage="http://www.microsoft.com/Windows/MediaPlayer/"
src='<%= GetSource() %>' align="middle" width="600" height="500" defaultframe="rightFrame"
id="MediaPlayer2" />
And in JavaScript,
function playVideo() {
try{
if(-1 != navigator.userAgent.indexOf("MSIE"))
{
var obj = document.getElementById("MediaPlayer1");
obj.Play();
}
else
{
var player = document.getElementById("MediaPlayer2");
player.controls.play();
}
}
catch(error) {
alert(error)
}
}
One of the big uses for function pointers in C is to call a function selected at run-time. For example, the C run-time library has two routines, qsort
and bsearch
, which take a pointer to a function that is called to compare two items being sorted; this allows you to sort or search, respectively, anything, based on any criteria you wish to use.
A very basic example, if there is one function called print(int x, int y)
which in turn may require to call a function (either add()
or sub()
, which are of the same type) then what we will do, we will add one function pointer argument to the print()
function as shown below:
#include <stdio.h>
int add()
{
return (100+10);
}
int sub()
{
return (100-10);
}
void print(int x, int y, int (*func)())
{
printf("value is: %d\n", (x+y+(*func)()));
}
int main()
{
int x=100, y=200;
print(x,y,add);
print(x,y,sub);
return 0;
}
The output is:
value is: 410
value is: 390
The solutions posted here did not work well for me, so I did a mixture of the ones of this question and the following question: Is it possible to create multi-level ordered list in HTML?
/* Numbered lists like 1, 1.1, 2.2.1... */
ol li {display:block;} /* hide original list counter */
ol > li:first-child {counter-reset: item;} /* reset counter */
ol > li {counter-increment: item; position: relative;} /* increment counter */
ol > li:before {content:counters(item, ".") ". "; position: absolute; margin-right: 100%; right: 10px;} /* print counter */
Result:
Note: the screenshot, if you wish to see the source code or whatever is from this post: http://estiloasertivo.blogspot.com.es/2014/08/introduccion-running-lean-y-lean.html
Chrome, Safari, and IE 8+ come with built-in consoles (as part of a larger set of development tools). If you're using Firefox, getfirebug.com.
As stated by Harry Joy, you can do it on the onclick
attr like so:
<input type="button" onclick="func1();func2();" value="Call2Functions" />
Or, in your JS like so:
document.getElementById( 'Call2Functions' ).onclick = function()
{
func1();
func2();
};
Or, if you are assigning an onclick programmatically, and aren't sure if a previous onclick existed (and don't want to overwrite it):
var Call2FunctionsEle = document.getElementById( 'Call2Functions' ),
func1 = Call2FunctionsEle.onclick;
Call2FunctionsEle.onclick = function()
{
if( typeof func1 === 'function' )
{
func1();
}
func2();
};
If you need the functions run in scope of the element which was clicked, a simple use of apply could be made:
document.getElementById( 'Call2Functions' ).onclick = function()
{
func1.apply( this, arguments );
func2.apply( this, arguments );
};
Found one solution for WIFI (works for Android 4.3, 4.4):
As per CodeTrawler's answer, the solution is to enter the following into an explorer window:
%systemroot%\Microsoft.NET\Framework
Then search for:
Mscorlib.dll
...and right-click / go to the version tab for each result.
For horizontal alignment (No CSS)
Just insert an align attribute inside the table tag
<table align="center"></table
The copyright notice on a work establishes a claim to copyright. The date on the notice establishes how far back the claim is made. This means if you update the date, you are no longer claiming the copyright for the original date and that means if somebody has copied the work in the meantime and they claim its theirs on the ground that their publishing the copy was before your claim, then it will be difficult to establish who is the originator of the work.
Therefore, if the claim is based on common law copyright (not formally registered), then the date should be the date of first publication. If the claim is a registered copyright, then the date should be the date claimed in the registration. In cases where the work was substantially revised you may establish a new copyright claim to the revised work by adding another copyright notice with a newer date or by adding an additional date to the existing notice as in "© 2000, 2010". Again, the added date establishes how far back the claim is made on the revision.
In my project I introduced a notion of StableWebElement. It is a wrapper for WebElement which is able to detect if element is Stale and find a new reference to the original element. I have added a helper methods to locating elements which return StableWebElement instead of WebElement and the problem with StaleElementReference disappeared.
public static IStableWebElement FindStableElement(this ISearchContext context, By by)
{
var element = context.FindElement(by);
return new StableWebElement(context, element, by, SearchApproachType.First);
}
The code in C# is available on my project's page but it could be easily ported to java https://github.com/cezarypiatek/Tellurium/blob/master/Src/MvcPages/SeleniumUtils/StableWebElement.cs
Select ColumnB and as two CF formula rules apply:
Green: =AND(B1048576="X",B1="Y")
Red: =AND(B1048576="X",B1="W")
I had the same error until I restored the watch to factory defaults as per https://forums.developer.apple.com/thread/17948
"Apparently if you have and existing WatchOS 1 app and try to update it to WatchOS 2 the bundle identifier changes and causes this error. If you update your watch you will need to do reset it if you had installed WatchOS1 app before updating that app to WatchOS2."
File.getParent() from Java Documentation
I ran across the same issue you did but the above answers did not solve my issue. The only way I was able to resolve it - was to make a class and use specific widths to trigger the wrapping for my specific use case. As an example, I provided a snippet below - but I found you will need to adjust it for the table in question - since I typically use multiple colspans depending on the layout. The reasoning I believe Bootstrap is failing - is because it removes the wrapping constraints to get a full table for the scrollbars. THe colspan must be tripping it up.
<style>
@media (max-width: 768px) { /* use the max to specify at each container level */
.specifictd {
width:360px; /* adjust to desired wrapping */
display:table;
white-space: pre-wrap; /* css-3 */
white-space: -moz-pre-wrap; /* Mozilla, since 1999 */
white-space: -pre-wrap; /* Opera 4-6 */
white-space: -o-pre-wrap; /* Opera 7 */
word-wrap: break-word; /* Internet Explorer 5.5+ */
}
}
I hope this helps
The precise way to do this is it to use .project()
cursor method with the new mongodb
and nodejs
driver.
var query = await dbSchemas.SomeValue.find({}).project({ name: 1, _id: 0 })
My problem is multi modules project with base module, app module and feature module. Each module has AndroidManifest of its own, and I implemented build variant for debug and main. So we must sure that "android:name" just declared in Manifest of debug and main only, and do not set it in any of Manifest in child module. Ex: Manifest in main:
<application
android:name=".App"/>
Manifest in debug:
<application
tools:replace="android:name"
android:name=".DebugApp"
/>
Do not set "android:name" in other Manifest files like this:
<application android:name=".App">
Just define in feature module like this and it will merged fine
<application>
Did you open the cmd
prompt before installation of git? If so, close and reopen it.
When reading this question one can get the impression, that Iterable#forEach
in combination with lambda expressions is a shortcut/replacement for writing a traditional for-each loop. This is simply not true. This code from the OP:
joins.forEach(join -> mIrc.join(mSession, join));
is not intended as a shortcut for writing
for (String join : joins) {
mIrc.join(mSession, join);
}
and should certainly not be used in this way. Instead it is intended as a shortcut (although it is not exactly the same) for writing
joins.forEach(new Consumer<T>() {
@Override
public void accept(T join) {
mIrc.join(mSession, join);
}
});
And it is as a replacement for the following Java 7 code:
final Consumer<T> c = new Consumer<T>() {
@Override
public void accept(T join) {
mIrc.join(mSession, join);
}
};
for (T t : joins) {
c.accept(t);
}
Replacing the body of a loop with a functional interface, as in the examples above, makes your code more explicit: You are saying that (1) the body of the loop does not affect the surrounding code and control flow, and (2) the body of the loop may be replaced with a different implementation of the function, without affecting the surrounding code. Not being able to access non final variables of the outer scope is not a deficit of functions/lambdas, it is a feature that distinguishes the semantics of Iterable#forEach
from the semantics of a traditional for-each loop. Once one gets used to the syntax of Iterable#forEach
, it makes the code more readable, because you immediately get this additional information about the code.
Traditional for-each loops will certainly stay good practice (to avoid the overused term "best practice") in Java. But this doesn't mean, that Iterable#forEach
should be considered bad practice or bad style. It is always good practice, to use the right tool for doing the job, and this includes mixing traditional for-each loops with Iterable#forEach
, where it makes sense.
Since the downsides of Iterable#forEach
have already been discussed in this thread, here are some reasons, why you might probably want to use Iterable#forEach
:
To make your code more explicit: As described above, Iterable#forEach
can make your code more explicit and readable in some situations.
To make your code more extensible and maintainable: Using a function as the body of a loop allows you to replace this function with different implementations (see Strategy Pattern). You could e.g. easily replace the lambda expression with a method call, that may be overwritten by sub-classes:
joins.forEach(getJoinStrategy());
Then you could provide default strategies using an enum, that implements the functional interface. This not only makes your code more extensible, it also increases maintainability because it decouples the loop implementation from the loop declaration.
To make your code more debuggable: Seperating the loop implementation from the declaration can also make debugging more easy, because you could have a specialized debug implementation, that prints out debug messages, without the need to clutter your main code with if(DEBUG)System.out.println()
. The debug implementation could e.g. be a delegate, that decorates the actual function implementation.
To optimize performance-critical code: Contrary to some of the assertions in this thread, Iterable#forEach
does already provide better performance than a traditional for-each loop, at least when using ArrayList and running Hotspot in "-client" mode. While this performance boost is small and negligible for most use cases, there are situations, where this extra performance can make a difference. E.g. library maintainers will certainly want to evaluate, if some of their existing loop implementations should be replaced with Iterable#forEach
.
To back this statement up with facts, I have done some micro-benchmarks with Caliper. Here is the test code (latest Caliper from git is needed):
@VmOptions("-server")
public class Java8IterationBenchmarks {
public static class TestObject {
public int result;
}
public @Param({"100", "10000"}) int elementCount;
ArrayList<TestObject> list;
TestObject[] array;
@BeforeExperiment
public void setup(){
list = new ArrayList<>(elementCount);
for (int i = 0; i < elementCount; i++) {
list.add(new TestObject());
}
array = list.toArray(new TestObject[list.size()]);
}
@Benchmark
public void timeTraditionalForEach(int reps){
for (int i = 0; i < reps; i++) {
for (TestObject t : list) {
t.result++;
}
}
return;
}
@Benchmark
public void timeForEachAnonymousClass(int reps){
for (int i = 0; i < reps; i++) {
list.forEach(new Consumer<TestObject>() {
@Override
public void accept(TestObject t) {
t.result++;
}
});
}
return;
}
@Benchmark
public void timeForEachLambda(int reps){
for (int i = 0; i < reps; i++) {
list.forEach(t -> t.result++);
}
return;
}
@Benchmark
public void timeForEachOverArray(int reps){
for (int i = 0; i < reps; i++) {
for (TestObject t : array) {
t.result++;
}
}
}
}
And here are the results:
When running with "-client", Iterable#forEach
outperforms the traditional for loop over an ArrayList, but is still slower than directly iterating over an array. When running with "-server", the performance of all approaches is about the same.
To provide optional support for parallel execution: It has already been said here, that the possibility to execute the functional interface of Iterable#forEach
in parallel using streams, is certainly an important aspect. Since Collection#parallelStream()
does not guarantee, that the loop is actually executed in parallel, one must consider this an optional feature. By iterating over your list with list.parallelStream().forEach(...);
, you explicitly say: This loop supports parallel execution, but it does not depend on it. Again, this is a feature and not a deficit!
By moving the decision for parallel execution away from your actual loop implementation, you allow optional optimization of your code, without affecting the code itself, which is a good thing. Also, if the default parallel stream implementation does not fit your needs, no one is preventing you from providing your own implementation. You could e.g. provide an optimized collection depending on the underlying operating system, on the size of the collection, on the number of cores, and on some preference settings:
public abstract class MyOptimizedCollection<E> implements Collection<E>{
private enum OperatingSystem{
LINUX, WINDOWS, ANDROID
}
private OperatingSystem operatingSystem = OperatingSystem.WINDOWS;
private int numberOfCores = Runtime.getRuntime().availableProcessors();
private Collection<E> delegate;
@Override
public Stream<E> parallelStream() {
if (!System.getProperty("parallelSupport").equals("true")) {
return this.delegate.stream();
}
switch (operatingSystem) {
case WINDOWS:
if (numberOfCores > 3 && delegate.size() > 10000) {
return this.delegate.parallelStream();
}else{
return this.delegate.stream();
}
case LINUX:
return SomeVerySpecialStreamImplementation.stream(this.delegate.spliterator());
case ANDROID:
default:
return this.delegate.stream();
}
}
}
The nice thing here is, that your loop implementation doesn't need to know or care about these details.
To change only the second column of a table use the following:
General Case:
table td + td{ /* this will go to the 2nd column of a table directly */
background:red
}
Your case:
.countTable table table td + td{
background: red
}
Note: this works for all browsers (Modern and old ones) that's why I added my answer to an old question
I've no idea about Android in particular, but this looks like the usual XML whitespace handling - leading and trailing whitespace within an element is generally considered insignificant and removed. Try xml:space
:
<string name="Toast_Memory_GameWon_part1" xml:space="preserve">you found ALL PAIRS ! on </string>
<string name="Toast_Memory_GameWon_part2" xml:space="preserve"> flips !</string>
1) Why is the WebSockets protocol better?
WebSockets is better for situations that involve low-latency communication especially for low latency for client to server messages. For server to client data you can get fairly low latency using long-held connections and chunked transfer. However, this doesn't help with client to server latency which requires a new connection to be established for each client to server message.
Your 48 byte HTTP handshake is not realistic for real-world HTTP browser connections where there is often several kilobytes of data sent as part of the request (in both directions) including many headers and cookie data. Here is an example of a request/response to using Chrome:
Example request (2800 bytes including cookie data, 490 bytes without cookie data):
GET / HTTP/1.1
Host: www.cnn.com
Connection: keep-alive
Cache-Control: no-cache
Pragma: no-cache
Accept: text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8
User-Agent: Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.17 (KHTML, like Gecko) Chrome/24.0.1312.68 Safari/537.17
Accept-Encoding: gzip,deflate,sdch
Accept-Language: en-US,en;q=0.8
Accept-Charset: ISO-8859-1,utf-8;q=0.7,*;q=0.3
Cookie: [[[2428 byte of cookie data]]]
Example response (355 bytes):
HTTP/1.1 200 OK
Server: nginx
Date: Wed, 13 Feb 2013 18:56:27 GMT
Content-Type: text/html
Transfer-Encoding: chunked
Connection: keep-alive
Set-Cookie: CG=US:TX:Arlington; path=/
Last-Modified: Wed, 13 Feb 2013 18:55:22 GMT
Vary: Accept-Encoding
Cache-Control: max-age=60, private
Expires: Wed, 13 Feb 2013 18:56:54 GMT
Content-Encoding: gzip
Both HTTP and WebSockets have equivalent sized initial connection handshakes, but with a WebSocket connection the initial handshake is performed once and then small messages only have 6 bytes of overhead (2 for the header and 4 for the mask value). The latency overhead is not so much from the size of the headers, but from the logic to parse/handle/store those headers. In addition, the TCP connection setup latency is probably a bigger factor than the size or processing time for each request.
2) Why was it implemented instead of updating HTTP protocol?
There are efforts to re-engineer the HTTP protocol to achieve better performance and lower latency such as SPDY, HTTP 2.0 and QUIC. This will improve the situation for normal HTTP requests, but it is likely that WebSockets and/or WebRTC DataChannel will still have lower latency for client to server data transfer than HTTP protocol (or it will be used in a mode that looks a lot like WebSockets anyways).
Update:
Here is a framework for thinking about web protocols:
text/event-stream
MIME type. The browser API (which is fairly similar to the WebSocket API) is called the EventSource API.References:
Mine was because Firebase SDK in Gradle file was set to a wrong number version.
I removed the Firebase debs from Gradle and re-installed them again using Firebase Assistant
Just to add. If you right-click on an eclipse project and select Properties
, select the Java Build Path
link on the left. Then select the Source
Tab. You'll see a list of all the java source folders. You can even add your own. By default the {project}/src
folder is the classpath folder.
The Microsoft naming standard for C# says variables and parameters should use the lower camel case form IE: paramName
. The standard also calls for fields to follow the same form but this can lead to unclear code so many teams call for an underscore prefix to improve clarity IE: _fieldName
.
Bypass SSL Certificate....
HttpClientHandler clientHandler = new HttpClientHandler();
clientHandler.ServerCertificateCustomValidationCallback = (sender, cert, chain, sslPolicyErrors) => { return true; };
// Pass the handler to httpclient(from you are calling api)
var client = new HttpClient(clientHandler)
dividend % divisor
Dividend is the numeric expression to divide. Dividend must be any expression of integer data type in sql server.
Divisor is the numeric expression to divide the dividend. Divisor must be expression of integer data type except in sql server.
SELECT 15 % 2
Output
1
Dividend = 15
Divisor = 2
Let's say you wanted to query
Query a list of CITY names from STATION with even ID numbers only.
Schema structure for STATION:
ID Number
CITY varchar
STATE varchar
select CITY from STATION as st where st.id % 2 = 0
Will fetch the even set of records
In order to fetch the odd records with Id as odd number.
select CITY from STATION as st where st.id % 2 <> 0
% function reduces the value to either 0 or 1
Well try my code, atleast it gives you a string as overlay, you can very well replace it with a button or an image. You wont believe this is my first ever android app LOL. Anyways if you are more experienced with android apps than me, please try
I think If you want some custom colors you can go to Assets.xcassets
folder, right click and select New Color Set
, once you created you color you set, give it a name to reuse it.
And you can use it just like this :
import UIKit
class ViewController: UIViewController {
override func viewDidLoad() {
super.viewDidLoad()
UITextField.appearance().tintColor = UIColor(named: "YOUR-COLOR-NAME") #here
}
}
Tested on macOS 10.15 / iOS 13 / Swift 5
Got an awesome function here.
<?php
function getBrowser() {
$u_agent = $_SERVER['HTTP_USER_AGENT'];
$bname = 'Unknown';
$platform = 'Unknown';
$version= "";
//First get the platform?
if (preg_match('/linux/i', $u_agent)) {
$platform = 'linux';
}elseif (preg_match('/macintosh|mac os x/i', $u_agent)) {
$platform = 'mac';
}elseif (preg_match('/windows|win32/i', $u_agent)) {
$platform = 'windows';
}
// Next get the name of the useragent yes seperately and for good reason
if(preg_match('/MSIE/i',$u_agent) && !preg_match('/Opera/i',$u_agent)){
$bname = 'Internet Explorer';
$ub = "MSIE";
}elseif(preg_match('/Firefox/i',$u_agent)){
$bname = 'Mozilla Firefox';
$ub = "Firefox";
}elseif(preg_match('/OPR/i',$u_agent)){
$bname = 'Opera';
$ub = "Opera";
}elseif(preg_match('/Chrome/i',$u_agent) && !preg_match('/Edge/i',$u_agent)){
$bname = 'Google Chrome';
$ub = "Chrome";
}elseif(preg_match('/Safari/i',$u_agent) && !preg_match('/Edge/i',$u_agent)){
$bname = 'Apple Safari';
$ub = "Safari";
}elseif(preg_match('/Netscape/i',$u_agent)){
$bname = 'Netscape';
$ub = "Netscape";
}elseif(preg_match('/Edge/i',$u_agent)){
$bname = 'Edge';
$ub = "Edge";
}elseif(preg_match('/Trident/i',$u_agent)){
$bname = 'Internet Explorer';
$ub = "MSIE";
}
// finally get the correct version number
$known = array('Version', $ub, 'other');
$pattern = '#(?<browser>' . join('|', $known) .
')[/ ]+(?<version>[0-9.|a-zA-Z.]*)#';
if (!preg_match_all($pattern, $u_agent, $matches)) {
// we have no matching number just continue
}
// see how many we have
$i = count($matches['browser']);
if ($i != 1) {
//we will have two since we are not using 'other' argument yet
//see if version is before or after the name
if (strripos($u_agent,"Version") < strripos($u_agent,$ub)){
$version= $matches['version'][0];
}else {
$version= $matches['version'][1];
}
}else {
$version= $matches['version'][0];
}
// check if we have a number
if ($version==null || $version=="") {$version="?";}
return array(
'userAgent' => $u_agent,
'name' => $bname,
'version' => $version,
'platform' => $platform,
'pattern' => $pattern
);
}
// now try it
$ua=getBrowser();
$yourbrowser= "Your browser: " . $ua['name'] . " " . $ua['version'] . " on " .$ua['platform'] . " reports: <br >" . $ua['userAgent'];
print_r($yourbrowser);
?>
I found a function that can plot the confusion matrix which generated from sklearn
.
import numpy as np
def plot_confusion_matrix(cm,
target_names,
title='Confusion matrix',
cmap=None,
normalize=True):
"""
given a sklearn confusion matrix (cm), make a nice plot
Arguments
---------
cm: confusion matrix from sklearn.metrics.confusion_matrix
target_names: given classification classes such as [0, 1, 2]
the class names, for example: ['high', 'medium', 'low']
title: the text to display at the top of the matrix
cmap: the gradient of the values displayed from matplotlib.pyplot.cm
see http://matplotlib.org/examples/color/colormaps_reference.html
plt.get_cmap('jet') or plt.cm.Blues
normalize: If False, plot the raw numbers
If True, plot the proportions
Usage
-----
plot_confusion_matrix(cm = cm, # confusion matrix created by
# sklearn.metrics.confusion_matrix
normalize = True, # show proportions
target_names = y_labels_vals, # list of names of the classes
title = best_estimator_name) # title of graph
Citiation
---------
http://scikit-learn.org/stable/auto_examples/model_selection/plot_confusion_matrix.html
"""
import matplotlib.pyplot as plt
import numpy as np
import itertools
accuracy = np.trace(cm) / np.sum(cm).astype('float')
misclass = 1 - accuracy
if cmap is None:
cmap = plt.get_cmap('Blues')
plt.figure(figsize=(8, 6))
plt.imshow(cm, interpolation='nearest', cmap=cmap)
plt.title(title)
plt.colorbar()
if target_names is not None:
tick_marks = np.arange(len(target_names))
plt.xticks(tick_marks, target_names, rotation=45)
plt.yticks(tick_marks, target_names)
if normalize:
cm = cm.astype('float') / cm.sum(axis=1)[:, np.newaxis]
thresh = cm.max() / 1.5 if normalize else cm.max() / 2
for i, j in itertools.product(range(cm.shape[0]), range(cm.shape[1])):
if normalize:
plt.text(j, i, "{:0.4f}".format(cm[i, j]),
horizontalalignment="center",
color="white" if cm[i, j] > thresh else "black")
else:
plt.text(j, i, "{:,}".format(cm[i, j]),
horizontalalignment="center",
color="white" if cm[i, j] > thresh else "black")
plt.tight_layout()
plt.ylabel('True label')
plt.xlabel('Predicted label\naccuracy={:0.4f}; misclass={:0.4f}'.format(accuracy, misclass))
plt.show()
This is the most simple solution that use:
// Use this as first line upon load of page
$sort = $_GET['s'];
// Then simply sort according to that variable
$sql="SELECT * FROM tracks ORDER BY $sort";
echo '<tr>';
echo '<td><a href="report_tracks.php?s=title">Title</a><td>';
echo '<td><a href="report_tracks.php?s=album">Album</a><td>';
echo '<td><a href="report_tracks.php?s=artist">Artist</a><td>';
echo '<td><a href="report_tracks.php?s=count">Count</a><td>';
echo '</tr>';
Here are some methods that may help others, though they aren't really services as much as they may be described as "methods that may, after some torture of effort or logic, lead to a claim of on-demand access to Mac OS X" (no doubt I should patent that phrase).
Fundamentally, I am inclined to believe that on-demand (per-hour) hosting does not exist, and @Erik has given information for the shortest feasible services, i.e. monthly hosting.
It seems that one may use EC2 itself, but install OS X on the instance through a lot of elbow grease.
Where this gets tricky is I'm not sure if this will work for a cluster compute instance. In fact, I think this is likely to be a royal pain. A similar approach may work for Rackspace or other cloud services.
I found only this site claiming on-demand Mac hosting, with a Mac Mini. It doesn't look particularly accurate: it offers free on-demand access to a Mini if one pays for a month of bandwidth. That's like free bandwidth if one rents a Mini for a month. That's not really how "on-demand" works.
Update 1: In the end, it seems that nobody offers a comparable service. An outfit called Media Temple claims they will offer the first virtual servers using Parallels, OS X Leopard, and some other stuff (in other words, I wonder if there is some caveat that makes them unique, but, without that caveat, someone else may have a usable offering).
After this search, I think that a counterpart to EC2 does not exist for the OS X operating system. It is extraordinarily unlikely that one would exist, offer a scalable solution, and yet be very difficult to find. One could set it up internally, but there's no reseller/vendor offering on-demand, hourly virtual servers. This may be disappointing, but not surprising - apparently iCloud is running on Amazon and Microsoft systems.
I was facing same issue and I just started app with new port and everything looks good.
ng serve --port 4201
IMHO the best way to do this is using TeleThon, but given that the answer by apadana is outdated beyond repair, I will write the working solution here:
import os
import sys
from telethon import TelegramClient
from telethon.utils import get_display_name
import nest_asyncio
nest_asyncio.apply()
session_name = "<session_name>"
api_id = <api_id>
api_hash = "<api_hash>"
dialog_count = 10 # you may change this
if f"{session_name}.session" in os.listdir():
os.remove(f"{session_name}.session")
client = TelegramClient(session_name, api_id, api_hash)
async def main():
dialogs = await client.get_dialogs(dialog_count)
for dialog in dialogs:
print(get_display_name(dialog.entity), dialog.entity.id)
async with client:
client.loop.run_until_complete(main())
this snippet will give you the first 10
chats in your Telegram.
Assumptions:
telethon
and nest_asyncio
installedapi_id
and api_hash
from my.telegram.orgI think the best way to do is the way mentioned by @Salvador Dali. Not that the others are wrong.
Because when you have a data set where you just want to select one column and put it into one variable and the rest of the columns into another for comparison or computational purposes. Then dropping the column of the data set might not help. Of course there are use cases for that as well.
x_cols = [x for x in data.columns if x != 'name of column to be excluded']
Then you can put those collection of columns in variable x_cols
into another variable like x_cols1
for other computation.
ex: x_cols1 = data[x_cols]
Use valueAsNumber
instead of .val()
.
input . valueAsNumber [ = value ]
Returns a number representing the form control's value, if applicable; otherwise, returns null.
Can be set, to change the value.
Throws an INVALID_STATE_ERR exception if the control is neither date- or time-based nor numeric.
I tried on Windows and I was getting same issue after enabling this in PHP installation folder\etc\php.ini
:
extension=mysqli.dll
extension=mbstring.dl
You should also enable the following in the ini file:
extension_dir = "ext"
phpMyadmin is working now!
Similar to the answer of @ShimonDoodkin this is what I did in a fragment.
https://stackoverflow.com/a/29229865/2413303
passwordInput.postDelayed(new ShowKeyboard(), 300); //250 sometimes doesn't run if returning from LockScreen
Where ShowKeyboard
is
private class ShowKeyboard implements Runnable {
@Override
public void run() {
passwordInput.setFocusableInTouchMode(true);
passwordInput.requestFocus();
getActivity().getWindow().setSoftInputMode(WindowManager.LayoutParams.SOFT_INPUT_STATE_ALWAYS_VISIBLE);
((InputMethodManager) getActivity().getSystemService(Context.INPUT_METHOD_SERVICE)).showSoftInput(passwordInput, 0);
}
}
After a successful input, I also make sure I hide the keyboard
getActivity().getWindow().setSoftInputMode(WindowManager.LayoutParams.SOFT_INPUT_STATE_HIDDEN);
((InputMethodManager) getActivity().getSystemService(Context.INPUT_METHOD_SERVICE))
.hideSoftInputFromWindow(getView().getWindowToken(), 0);
For Wamp 3 (Apache 2.4), besides putting the server online as described in the other answers, in the Virtual Hosts file conf/extra/httpd-vhosts.conf
you might need to replace
Require local
with
Require all granted
This is applicable if in httpd.conf
you have
Include conf/extra/httpd-vhosts.conf
df[df['ID'].duplicated() == True]
This worked for me
So don't copy and paste! Extract a function to do your splitting and reuse it.
public static string[] SplitWhitespace (string input)
{
char[] whitespace = new char[] { ' ', '\t' };
return input.Split(whitespace);
}
Code reuse is your friend.
I had opened a ticket also with Google's support, and received the solution. Instead of choosing the sdk/platform/android-16 folder, if you select the top-level "sdk" folder instead, you'll then be asked to choose which SDK you want to add. This worked!
Maybe this article can help you http://blog.angular-university.io/introduction-to-angular-2-forms-template-driven-vs-model-driven/
In this approach, you have to use FormControl then watch for value changes and then apply your mask to the value. An example should be:
...
form: FormGroup;
...
ngOnInit(){
this.form.valueChanges
.map((value) => {
// Here you can manipulate your value
value.firstName = value.firstName.trim();
return value;
})
.filter((value) => this.form.valid)
.subscribe((value) => {
console.log("Model Driven Form valid value: vm = ",JSON.stringify(value));
});
}
You can do it with a WITH
clause.
For example:
WITH c AS (SELECT DISTINCT a, b, c FROM tableName)
SELECT * FROM tableName r, c WHERE c.rowid=r.rowid AND c.a=r.a AND c.b=r.b AND c.c=r.c
This also allows you to select only the rows selected in the WITH
clauses query.
Maybe it's useful to someone: After converting my app to MVC 4 with .NET framework 4.5 and installing the framework on my server with IIS 7.0 I encountered the same 'forbidden' error mentioned in the question. I tried all options described above to no avail, when I noticed the
<system.webServer>
<modules runAllManagedModulesForAllRequests="true"/>
</system.webServer>
was missing from my web.config. After adding this, everything worked. Simple, but easy to overlook...
EDIT:
Of course the solution above will work, but it is indeed a waste of resources. I think it is better to add the routing module as pointed out by Chris Herring in the comments.
<system.webServer>
<modules>
<remove name="UrlRoutingModule-4.0" />
<add name="UrlRoutingModule-4.0" type="System.Web.Routing.UrlRoutingModule" preCondition="" />
</modules>
</system.webServer>
I don't think there's a jQuery-way to directly access the pseudoclass' rules, but you could always append a new style
element to the document's head like:
$('head').append('<style>.column:before{width:800px !important;}</style>');
See a live demo here
I also remember having seen a plugin that tackles this issue once but I couldn't find it on first googling unfortunately.
If you want to include the column that is the current identity, you can still do that but you have to explicitly list the columns and cast the current identity to an int (assuming it is one now), like so:
select cast (CurrentID as int) as CurrentID, SomeOtherField, identity(int) as TempID
into #temp
from myserver.dbo.mytable
I think the C++11 approach would be more like this now.
#include <string>
#include <iostream>
#include <functional>
template<typename T>
class LambdaSetter {
public:
LambdaSetter() :
getter([&]() -> T { return m_value; }),
setter([&](T value) { m_value = value; }),
m_value()
{}
T operator()() { return getter(); }
void operator()(T value) { setter(value); }
LambdaSetter operator=(T rhs)
{
setter(rhs);
return *this;
}
T operator=(LambdaSetter rhs)
{
return rhs.getter();
}
operator T()
{
return getter();
}
void SetGetter(std::function<T()> func) { getter = func; }
void SetSetter(std::function<void(T)> func) { setter = func; }
T& GetRawData() { return m_value; }
private:
T m_value;
std::function<const T()> getter;
std::function<void(T)> setter;
template <typename TT>
friend std::ostream & operator<<(std::ostream &os, const LambdaSetter<TT>& p);
template <typename TT>
friend std::istream & operator>>(std::istream &is, const LambdaSetter<TT>& p);
};
template <typename T>
std::ostream & operator<<(std::ostream &os, const LambdaSetter<T>& p)
{
os << p.getter();
return os;
}
template <typename TT>
std::istream & operator>>(std::istream &is, const LambdaSetter<TT>& p)
{
TT value;
is >> value;
p.setter(value);
return is;
}
class foo {
public:
foo()
{
myString.SetGetter([&]() -> std::string {
myString.GetRawData() = "Hello";
return myString.GetRawData();
});
myString2.SetSetter([&](std::string value) -> void {
myString2.GetRawData() = (value + "!");
});
}
LambdaSetter<std::string> myString;
LambdaSetter<std::string> myString2;
};
int _tmain(int argc, _TCHAR* argv[])
{
foo f;
std::string hi = f.myString;
f.myString2 = "world";
std::cout << hi << " " << f.myString2 << std::endl;
std::cin >> f.myString2;
std::cout << hi << " " << f.myString2 << std::endl;
return 0;
}
I tested this in Visual Studio 2013. Unfortunately in order to use the underlying storage inside the LambdaSetter I needed to provide a "GetRawData" public accessor which can lead to broken encapsulation, but you can either leave it out and provide your own storage container for T or just ensure that the only time you use "GetRawData" is when you are writing a custom getter/setter method.
this is just a shot in the dark : when you call connect without a bind first, the system allocates your local port, and if you have multiple threads connecting and disconnecting it could possibly try to allocate a port already in use. the kernel source file inet_connection_sock.c hints at this condition. just as an experiment try doing a bind to a local port first, making sure each bind/connect uses a different local port number.
For the daily and full backup solution just use the SVN backup scripts here.
Using a
instead of w
should let you update the file instead of creating a new one/overwriting everything in the existing file.
See this answer for a difference in the modes.
One of the best online tools currently available to extract pdf fonts is http://www.pdfconvertonline.com/extract-pdf-fonts-online.html
Messages have content. Content can be text, html, a DataHandler or a Multipart, and there can only be one content. Multiparts only have BodyParts but can have more than one. BodyParts, like Messages, can have content which has already been described.
A message with HTML, text and an a attachment can be viewed hierarchically like this:
message
mainMultipart (content for message, subType="mixed")
->htmlAndTextBodyPart (bodyPart1 for mainMultipart)
->htmlAndTextMultipart (content for htmlAndTextBodyPart, subType="alternative")
->textBodyPart (bodyPart2 for the htmlAndTextMultipart)
->text (content for textBodyPart)
->htmlBodyPart (bodyPart1 for htmlAndTextMultipart)
->html (content for htmlBodyPart)
->fileBodyPart1 (bodyPart2 for the mainMultipart)
->FileDataHandler (content for fileBodyPart1 )
And the code to build such a message:
// the parent or main part if you will
Multipart mainMultipart = new MimeMultipart("mixed");
// this will hold text and html and tells the client there are 2 versions of the message (html and text). presumably text
// being the alternative to html
Multipart htmlAndTextMultipart = new MimeMultipart("alternative");
// set text
MimeBodyPart textBodyPart = new MimeBodyPart();
textBodyPart.setText(text);
htmlAndTextMultipart.addBodyPart(textBodyPart);
// set html (set this last per rfc1341 which states last = best)
MimeBodyPart htmlBodyPart = new MimeBodyPart();
htmlBodyPart.setContent(html, "text/html; charset=utf-8");
htmlAndTextMultipart.addBodyPart(htmlBodyPart);
// stuff the multipart into a bodypart and add the bodyPart to the mainMultipart
MimeBodyPart htmlAndTextBodyPart = new MimeBodyPart();
htmlAndTextBodyPart.setContent(htmlAndTextMultipart);
mainMultipart.addBodyPart(htmlAndTextBodyPart);
// attach file body parts directly to the mainMultipart
MimeBodyPart filePart = new MimeBodyPart();
FileDataSource fds = new FileDataSource("/path/to/some/file.txt");
filePart.setDataHandler(new DataHandler(fds));
filePart.setFileName(fds.getName());
mainMultipart.addBodyPart(filePart);
// set message content
message.setContent(mainMultipart);
You have add this code:
$mail->SMTPOptions = array(
'ssl' => array(
'verify_peer' => false,
'verify_peer_name' => false,
'allow_self_signed' => true
)
);
And Enabling Allow less secure apps: "will usually solve the problem for PHPMailer, and it does not really make your app significantly less secure. Reportedly, changing this setting may take an hour or more to take effect, so don't expect an immediate fix"
This work for me!
In my case (reading a date from a MySQL db in a Lumen 5.1 project) the only solution that worked is using Carbon to set timezone of variables:
$carbonDate = new Carbon($dateFromDBInUTC);
$carbonDate->timezone = 'America/New_York';
return $carbonDate->toDayDateTimeString(); // or $carbonDate->toDateTimeString() for ISO format
Using DB_TIMEZONE=-05:00
in the .env
file almost worked but does not handle DST changes.
Using the APP_TIMEZONE=America/New_York
in the .env
file had no effect on a timezone value retrieved in a Lumen 5.1 webapp from a MySQL database, but it works in Lavarel 5.1.
Also Lumen didn't read at all the [lumen_project]/config/app.php
file that I created (it didn't complain when I put a syntax error there).
Using date_default_timezone_set
didn't work either.
Faced the same Issue. While running ngserve you should be in the apps directory. To confirm(on GIT BASH : you will have (master) after the directory path at gitbash prompt, if you are at app directory.)
A union query can only have one master ORDER BY
clause, IIRC. To get this, in each query making up the greater UNION
query, add a field that will be the one field you sort by for the UNION
's ORDER BY
.
For instance, you might have something like
SELECT field1, field2, '1' AS union_sort
UNION SELECT field1, field2, '2' AS union_sort
UNION SELECT field1, field2, '3' AS union_sort
ORDER BY union_sort
That union_sort
field can be anything you may want to sort by. In this example, it just happens to put results from the first table first, second table second, etc.
You need to be careful with inheritance:
>>> class Foo:
def __eq__(self, other):
if isinstance(other, self.__class__):
return self.__dict__ == other.__dict__
else:
return False
>>> class Bar(Foo):pass
>>> b = Bar()
>>> f = Foo()
>>> f == b
True
>>> b == f
False
Check types more strictly, like this:
def __eq__(self, other):
if type(other) is type(self):
return self.__dict__ == other.__dict__
return False
Besides that, your approach will work fine, that's what special methods are there for.
Check out Google's Gson: http://code.google.com/p/google-gson/
From their website:
Gson gson = new Gson(); // Or use new GsonBuilder().create();
MyType target2 = gson.fromJson(json, MyType.class); // deserializes json into target2
You would just need to make a MyType class (renamed, of course) with all the fields in the json string. It might get a little more complicated when you're doing the arrays, if you prefer to do all of the parsing manually (also pretty easy) check out http://www.json.org/ and download the Java source for the Json parser objects.
I have faced the same issue with you, then solved it,
Here are solutions, I wish it maybe can help
First
In the IIS modules
Configuration, loop up the WebDAVModule, if your web server has it, then remove it
Second
In the IIS handler mappings
configuration, you can see the list of enabling handler, to choose the PHP item
, edit it, on the edit page, click request restrictions button, then select the verbs tab
in the modal, in the specify the verbs to be handle label, check the all verbs radio
, then click ok, you also maybe see a warning, it shows us that use double quotation marks to PHP-CGI execution, then do it
if done it, then restart IIS server, it will be ok
When I upgraded my website PHP from version 5.6 to 7.2, I encountered this problem “Your PHP installation appears to be missing the MySQL extension which is required by WordPress”. It turns out that mysql extension is no longer supported in PHP version 7.2. It is now using mysqli extention. I am using old version of WordPress which still using mysql extension that is why the problem existed. So what I did is upgraded the WordPress to the core. This solve the problem.
Here's the steps I followed when upgrading WordPress manually.
Anonymous types are just regular types that are implicitly declared. They have little to do with dynamic
.
Now, if you were to use an ExpandoObject and reference it through a dynamic
variable, you could add or remove fields on the fly.
edit
Sure you can: just cast it to IDictionary<string, object>
. Then you can use the indexer.
You use the same casting technique to iterate over the fields:
dynamic employee = new ExpandoObject();
employee.Name = "John Smith";
employee.Age = 33;
foreach (var property in (IDictionary<string, object>)employee)
{
Console.WriteLine(property.Key + ": " + property.Value);
}
// This code example produces the following output:
// Name: John Smith
// Age: 33
The above code and more can be found by clicking on that link.
Typescript with Hooks
Note: I'm using React version 16.3, with React.createRef. For other versions use the ref callback.
Dropdown component:
interface DropdownProps {
...
};
export const Dropdown: React.FC<DropdownProps> () {
const ref: React.RefObject<HTMLDivElement> = React.createRef();
const handleClickOutside = (event: MouseEvent) => {
if (ref && ref !== null) {
const cur = ref.current;
if (cur && !cur.contains(event.target as Node)) {
// close all dropdowns
}
}
}
useEffect(() => {
// Bind the event listener
document.addEventListener("mousedown", handleClickOutside);
return () => {
// Unbind the event listener on clean up
document.removeEventListener("mousedown", handleClickOutside);
};
});
return (
<div ref={ref}>
...
</div>
);
}
Try this:
CONCATENATE(""""; B2 ;"""")
@widor provided a nice solution alternative too - integrated with mine:
CONCATENATE(char(34); B2 ;char(34))
>>> import random
>>> x = [1,2,3,4,5]
>>> random.shuffle(x)
>>> x
[5, 2, 4, 3, 1]
You ask two questions; your title says "Displaying a vector of strings", but you're not actually doing that, you actually build a single string composed of all the strings and output that.
Your question body asks "Why doesn't this work".
It doesn't work because your for loop is constrained by "userString.size()" which is 0, and you test your loop variable for being "userString.size() - 1". The condition of a for() loop is tested before permitting execution of the first iteration.
int n = 1;
for (int i = 1; i < n; ++i) {
std::cout << i << endl;
}
will print exactly nothing.
So your loop executes exactly no iterations, leaving userString and sentence empty.
Lastly, your code has absolutely zero reason to use a vector. The fact that you used "decltype(userString.size())" instead of "size_t" or "auto", while claiming to be a rookie, suggests you're either reading a book from back to front or you are setting yourself up to fail a class.
So to answer your question at the end of your post: It doesn't work because you didn't step through it with a debugger and inspect the values as it went. While I say it tongue-in-cheek, I'm going to leave it out there.
A BLOB
can be 65535 bytes (64 KB) maximum.
If you need more consider using:
a MEDIUMBLOB
for 16777215 bytes (16 MB)
a LONGBLOB
for 4294967295 bytes (4 GB).
See Storage Requirements for String Types for more info.
WARNING: This solution has security risks.
Try running the container as privileged:
sudo docker run --privileged=true -i -v /data1/Downloads:/Downloads ubuntu bash
Another option (that I have not tried) would be to create a privileged container and then create non-privileged containers inside of it.
Using function with ng-class is a good option when someone has to run complex logic to decide the appropriate CSS class.
http://jsfiddle.net/ms403Ly8/2/
HTML:
<div ng-app>
<div ng-controller="testCtrl">
<div ng-class="getCSSClass()">Testing ng-class using function</div>
</div>
</div>
CSS:
.testclass { Background: lightBlue}
JavaScript:
function testCtrl($scope) {
$scope.getCSSClass = function() {
return "testclass ";
}
}
Does your cacerts.pem file hold a single certificate? Since it is a PEM, have a look at it (with a text editor), it should start with
-----BEGIN CERTIFICATE-----
and end with
-----END CERTIFICATE-----
Finally, to check it is not corrupted, get hold of openssl and print its details using
openssl x509 -in cacerts.pem -text
To see command-line flags, use:
gcc -march=native -E -v - </dev/null 2>&1 | grep cc1
If you want to see the compiler/precompiler defines set by certain parameters, do this:
echo | gcc -dM -E - -march=native
Building off jeroenk's answer, here's the rundown:
$('button').addClass('disabled'); // Disables visually
$('button').prop('disabled', true); // Disables visually + functionally
$('input[type=button]').addClass('disabled'); // Disables visually
$('input[type=button]').prop('disabled', true); // Disables visually + functionally
$('a').addClass('disabled'); // Disables visually
$('a').prop('disabled', true); // Does nothing
$('a').attr('disabled', 'disabled'); // Disables visually
See fiddle
Just for anyone else who's looking for an answer in Ruby, Python, and C# bindings (Selenium 2.33.0).
Note that the actual keys to send depend on your OS. For example, Mac uses CMD + T, instead of Ctrl + T.
require 'selenium-webdriver'
driver = Selenium::WebDriver.for :firefox
driver.get('http://stackoverflow.com/')
body = driver.find_element(:tag_name => 'body')
body.send_keys(:control, 't')
driver.quit
from selenium import webdriver
from selenium.webdriver.common.keys import Keys
driver = webdriver.Firefox()
driver.get("http://stackoverflow.com/")
body = driver.find_element_by_tag_name("body")
body.send_keys(Keys.CONTROL + 't')
driver.close()
using OpenQA.Selenium;
using OpenQA.Selenium.Firefox;
namespace StackOverflowTests {
class OpenNewTab {
static void Main(string[] args) {
IWebDriver driver = new FirefoxDriver();
driver.Navigate().GoToUrl("http://stackoverflow.com/");
IWebElement body = driver.FindElement(By.TagName("body"));
body.SendKeys(Keys.Control + 't');
driver.Quit();
}
}
}
Yes, SELECT COUNT(*) FROM TableName
Your example is as concise as it gets with the switch
construct.
I use the following method to remove all constraints from a view:
.h file:
+ (void)RemoveContraintsFromView:(UIView*)view
removeParentConstraints:(bool)parent
removeChildConstraints:(bool)child;
.m file:
+ (void)RemoveContraintsFromView:(UIView *)view
removeParentConstraints:(bool)parent
removeChildConstraints:(bool)child
{
if (parent) {
// Remove constraints between view and its parent.
UIView *superview = view.superview;
[view removeFromSuperview];
[superview addSubview:view];
}
if (child) {
// Remove constraints between view and its children.
[view removeConstraints:[view constraints]];
}
}
You can also read this post on my blog to better understand how it works behind the hood.
If you need more granular control, I'd strongly advise switching to Masonry, a powerful framework class you could use whenever you need to properly handle constraints programmatically.
There are 2 potential issues that I see:
1 - IE has had trouble with position:fixed in the past. If you are using IE7+ with a valid doctype or a non-IE browser this isn't part of the problem
2 - You need to specify a width for the footer if you want the footer object to be centered. Otherwise it defaults to the full width of the page and the auto margin for the left and right get set to 0. If you want the footer bar to take up the width (like the StackOverflow notice bar) and center the text, then you need to add "text-align: center" to your definition.
As pointed out already, most standard implementations of List
are serializable. However you have to ensure that the objects referenced/contained within the list are also serializable.
Typically we would place one of these at or near the top of the script. Scripts that parse their command lines would do the redirection after parsing.
Send stdout to a file
exec > file
with stderr
exec > file
exec 2>&1
append both stdout and stderr to file
exec >> file
exec 2>&1
As Jonathan Leffler mentioned in his comment:
exec
has two separate jobs. The first one is to replace the currently executing shell (script) with a new program. The other is changing the I/O redirections in the current shell. This is distinguished by having no argument to exec
.
function check_file_path(){
[ -f "$1" ] && return
[ -d "$1" ] && return
return 1
}
check_file_path $path_or_file
Super has no side effects
Base = ChildB
Base()
works as expected
Base = ChildA
Base()
gets into infinite recursion.
See a very good article "The definitive guide to Python exceptions". The basic principles are:
BaseException.__init__
with only one argument.There is also information on organizing (in modules) and wrapping exceptions, I recommend to read the guide.
The below code assumes that the variable 'str' contains your http://.... string. It checks to see if it is https and if true does nothing. However if it is http it replaces http with https.
if (str.indexOf('https') === -1) {
str = str.replace('http', 'https')
}
_x000D_
You don't need to use echo or grep. You could do this:
ping -oc 100000 8.8.8.8 > /dev/null && say "up" || say "down"
You want rows where that condition is true so you need a comma:
data[data$Ozone > 14, ]
I came across your post as I was looking for a solution to the same problem for myself. I put together the following solution using a directive based on a number of posts. You can try it here (try resizing the browser window): http://jsfiddle.net/zbjLh/2/
View:
<div ng-app="miniapp" ng-controller="AppController" ng-style="style()" resize>
window.height: {{windowHeight}} <br />
window.width: {{windowWidth}} <br />
</div>
Controller:
var app = angular.module('miniapp', []);
function AppController($scope) {
/* Logic goes here */
}
app.directive('resize', function ($window) {
return function (scope, element) {
var w = angular.element($window);
scope.getWindowDimensions = function () {
return { 'h': w.height(), 'w': w.width() };
};
scope.$watch(scope.getWindowDimensions, function (newValue, oldValue) {
scope.windowHeight = newValue.h;
scope.windowWidth = newValue.w;
scope.style = function () {
return {
'height': (newValue.h - 100) + 'px',
'width': (newValue.w - 100) + 'px'
};
};
}, true);
w.bind('resize', function () {
scope.$apply();
});
}
})
FYI I originally had it working in a controller (http://jsfiddle.net/zbjLh/), but from subsequent reading found that this is uncool from Angular's perspective, so I have now converted it to use a directive.
Importantly, note the true
flag at the end of the 'watch' function, for comparing the getWindowDimensions return object's equality (remove or change to false if not using an object).
As others have indicated, the raw_input
function has been renamed to input
in Python 3.0, and you really would be better served by a more up-to-date book, but I want to point out that there are better ways to see the output of your script.
From your description, I think you're using Windows, you've saved a .py
file and then you're double-clicking on it to run it. The terminal window that pops up closes as soon as your program ends, so you can't see what the result of your program was. To solve this, your book recommends adding a raw_input
/ input
statement to wait until the user presses enter. However, as you've seen, if something goes wrong, such as an error in your program, that statement won't be executed and the window will close without you being able to see what went wrong. You might find it easier to use a command-prompt or IDLE.
When you're looking at the folder window that contains your Python program, hold down shift and right-click anywhere in the white background area of the window. The menu that pops up should contain an entry "Open command window here". (I think this works on Windows Vista and Windows 7.) This will open a command-prompt window that looks something like this:
Microsoft Windows [Version 6.1.7601]
Copyright (c) 2009 Microsoft Corporation. All rights reserved.
C:\Users\Weeble\My Python Program>_
To run your program, type the following (substituting your script name):
python myscript.py
...and press enter. (If you get an error that "python" is not a recognized command, see http://showmedo.com/videotutorials/video?name=960000&fromSeriesID=96 ) When your program finishes running, whether it completes successfully or not, the window will remain open and the command-prompt will appear again for you to type another command. If you want to run your program again, you can press the up arrow to recall the previous command you entered and press enter to run it again, rather than having to type out the file name every time.
IDLE is a simple program editor that comes installed with Python. Among other features it can run your programs in a window. Right-click on your .py
file and choose "Edit in IDLE". When your program appears in the editor, press F5 or choose "Run module" from the "Run" menu. Your program will run in a window that stays open after your program ends, and in which you can enter Python commands to run immediately.
If there is no Server context (i.e your running offline), you can use HttpUtility.HtmlDecode.
This solution is for the people who don't use jQuery and to improve performance by not moving the script to bottom of the page, and the problem is that the script is loaded before the html elements are loaded. Add your code in this function body
window.onload=()=>{
// your code here
// example
let element=document.getElementById("elementId");
console.log(element);
};
add everything that has to work only after the document is loaded and keep other functions that has to be executed as soon as the script is loaded outside the function.
I recommend this method instead of moving down the script, because if the script is on top, the browser will try to download it as soon as it sees the script tag, if it is on the bottom of the page, it will take some more time to load it and until that time no event listeners in the script will work. in this case all other functions could be called and the window.onload
will get called once everything is loaded.
Here's a basic jQuery plugin I wrote that selects all checkboxes on the page, except the checkbox/element that is to be used as the toggle:
(function($) {
// Checkbox toggle function for selecting all checkboxes on the page
$.fn.toggleCheckboxes = function() {
// Get all checkbox elements
checkboxes = $(':checkbox').not(this);
// Check if the checkboxes are checked/unchecked and if so uncheck/check them
if(this.is(':checked')) {
checkboxes.prop('checked', true);
} else {
checkboxes.prop('checked', false);
}
}
}(jQuery));
Then simply call the function on your checkbox or button element:
// Check all checkboxes
$('.check-all').change(function() {
$(this).toggleCheckboxes();
});
Pass true
as the append
parameter of the constructor:
TextWriter tsw = new StreamWriter(@"C:\Hello.txt", true);
If I understand correctly, you can use the module operator for this. For example, in Java (and a lot of other languages), you could do:
//j is a multiple of four if
j % 4 == 0
The module operator performs division and gives you the remainder.
It looks like your longs are seconds, and not milliseconds. Date constructor takes time as millis, so
Date d = new Date(timeInSeconds * 1000);
At least three ways:
var result = /[^/]*$/.exec("foo/bar/test.html")[0];
...which says "grab the series of characters not containing a slash" ([^/]*
) at the end of the string ($
). Then it grabs the matched characters from the returned match object by indexing into it ([0]
); in a match object, the first entry is the whole matched string. No need for capture groups.
lastIndexOf
and substring
:var str = "foo/bar/test.html";
var n = str.lastIndexOf('/');
var result = str.substring(n + 1);
lastIndexOf
does what it sounds like it does: It finds the index of the last occurrence of a character (well, string) in a string, returning -1 if not found. Nine times out of ten you probably want to check that return value (if (n !== -1)
), but in the above since we're adding 1 to it and calling substring, we'd end up doing str.substring(0)
which just returns the string.
Array#split
Sudhir and Tom Walters have this covered here and here, but just for completeness:
var parts = "foo/bar/test.html".split("/");
var result = parts[parts.length - 1]; // Or parts.pop();
split
splits up a string using the given delimiter, returning an array.
The lastIndexOf
/ substring
solution is probably the most efficient (although one always has to be careful saying anything about JavaScript and performance, since the engines vary so radically from each other), but unless you're doing this thousands of times in a loop, it doesn't matter and I'd strive for clarity of code.
(Update) V5.1 & Hooks (Requires React >= 16.8)
You can use useHistory
, useLocation
and useRouteMatch
in your component to get match
, history
and location
.
const Child = () => {
const location = useLocation();
const history = useHistory();
const match = useRouteMatch("write-the-url-you-want-to-match-here");
return (
<div>{location.pathname}</div>
)
}
export default Child
(Update) V4 & V5
You can use withRouter
HOC in order to inject match
, history
and location
in your component props.
class Child extends React.Component {
static propTypes = {
match: PropTypes.object.isRequired,
location: PropTypes.object.isRequired,
history: PropTypes.object.isRequired
}
render() {
const { match, location, history } = this.props
return (
<div>{location.pathname}</div>
)
}
}
export default withRouter(Child)
(Update) V3
You can use withRouter
HOC in order to inject router
, params
, location
, routes
in your component props.
class Child extends React.Component {
render() {
const { router, params, location, routes } = this.props
return (
<div>{location.pathname}</div>
)
}
}
export default withRouter(Child)
Original answer
If you don't want to use the props, you can use the context as described in React Router documentation
First, you have to set up your childContextTypes
and getChildContext
class App extends React.Component{
getChildContext() {
return {
location: this.props.location
}
}
render() {
return <Child/>;
}
}
App.childContextTypes = {
location: React.PropTypes.object
}
Then, you will be able to access to the location object in your child components using the context like this
class Child extends React.Component{
render() {
return (
<div>{this.context.location.pathname}</div>
)
}
}
Child.contextTypes = {
location: React.PropTypes.object
}
As I am new, I can't comment on other answers.
If someone is looking for an answer to make this work (and can use javascript - as it seems to be required to make this work at the moment) this approach has worked pretty well for me and it accounts for mobile orientation change as well. I use Jquery for the example code but should be doable with vanillaJS.
-First, I use a script to detect if the device is touch or hover. Bare-bones example:
if ("ontouchstart" in document.documentElement) {
document.body.classList.add('touch-device');
} else {
document.body.classList.add('hover-device');
}
This adds class to the body element according to the device type (hover or touch) that can be used later for the height script.
-Next use this code to set height of the device on load and on orientation change:
if (jQuery('body').hasClass("touch-device")) {
//Loading height on touch-device
function calcFullHeight() {
jQuery('.hero-section').css("height", $(window).height());
}
(function($) {
calcFullHeight();
jQuery(window).on('orientationchange', function() {
// 500ms timeout for getting the correct height after orientation change
setTimeout(function() {
calcFullHeight();
}, 500);
});
})(jQuery);
} else {
jQuery('.hero-section').css("height", "100vh");
}
-Timeout is set so that the device would calculate the new height correctly on orientation change. If there is no timeout, in my experience the height will not be correct. 500ms might be an overdo but has worked for me.
-100vh on hover-devices is a fallback if the browser overrides the CSS 100vh.
Assuming your int array is sorted, i would do...
int count = 0, occur = 0, high = 0, a;
for (a = 1; a < n.length; a++) {
if (n[a - 1] == n[a]) {
count++;
if (count > occur) {
occur = count;
high = n[a];
}
} else {
count = 0;
}
}
System.out.println("highest occurence = " + high);
Format
A U Thor <[email protected]>
simply mean that you should specify
FirstName MiddleName LastName <[email protected]>
Looks like middle and last names are optional (maybe the part before email doesn't have a strict format at all). Try, for example, this:
git commit --author="John <[email protected]>" -m "some fix"
As the docs say:
--author=<author>
Override the commit author. Specify an explicit author using the standard
A U Thor <[email protected]> format. Otherwise <author> is assumed to
be a pattern and is used to search for an existing commit by that author
(i.e. rev-list --all -i --author=<author>); the commit author is then copied
from the first such commit found.
if you don't use this format, git treats provided string as a pattern and tries to find matching name among the authors of other commits.
Apache part - enabling you to open https://localhost/xyz
There is the config file xampp/apache/conf/extra/httpd-ssl.conf which contains all the ssl specific configuration. It's fairly well documented, so have a read of the comments and take look at http://httpd.apache.org/docs/2.2/ssl/.
The files starts with <IfModule ssl_module>
, so it only has an effect if the apache has been started with its mod_ssl module.
Open the file xampp/apache/conf/httpd.conf in an editor and search for the line
#LoadModule ssl_module modules/mod_ssl.so
remove the hashmark, save the file and re-start the apache. The webserver should now start with xampp's basic/default ssl confguration; good enough for testing but you might want to read up a bit more about mod_ssl in the apache documentation.
PHP part - enabling adldap to use ldap over ssl
adldap needs php's openssl extension to use "ldap over ssl" connections. The openssl extension ships as a dll with xampp. You must "tell" php to load this dll, e.g. by having an extension=nameofmodule.dll
in your php.ini
Run
echo 'ini: ', get_cfg_var('cfg_file_path');
It should show you which ini file your php installation uses (may differ between the php-apache-module and the php-cli version).
Open this file in an editor and search for
;extension=php_openssl.dll
remove the semicolon, save the file and re-start the apache.
Jenkins Pipeline also provides the current build number as the property number
of the currentBuild
. It can be read as currentBuild.number
.
For example:
// Scripted pipeline
def buildNumber = currentBuild.number
// Declarative pipeline
echo "Build number is ${currentBuild.number}"
Other properties of currentBuild
are described in the Pipeline Syntax: Global Variables page that is included on each Pipeline job page. That page describes the global variables available in the Jenkins instance based on the current plugins.
Try this.
<span style="padding-right:3px; padding-top: 3px; display:inline-block;">
<img class="manImg" src="images/ico_mandatory.gif"></img>
</span>
It is a good idea to check the cassandra log if even the server is running. I was getting exactly the same message and unable to do anything with that and then I found out that there are errors in the log and the system is actually not working.
Silly, I know, but could happen...
This is what I have after doing purge of all the python versions and reinstalling only 3.6.
root@esp32:/# python
Python 3.6.0b2 (default, Oct 11 2016, 05:27:10)
[GCC 6.2.0 20161005] on linux
Type "help", "copyright", "credits" or "license" for more information.
>>>
root@esp32:/# python3
Python 3.8.0 (default, Dec 15 2019, 14:19:02)
[GCC 6.2.0 20161005] on linux
Type "help", "copyright", "credits" or "license" for more information.
Also the pip and pip3 commands are totally f up:
root@esp32:/# pip
Traceback (most recent call last):
File "/usr/local/bin/pip", line 7, in <module>
from pip._internal.cli.main import main
File "/usr/local/lib/python3.5/dist-packages/pip/_internal/cli/main.py", line 60
sys.stderr.write(f"ERROR: {exc}")
^
SyntaxError: invalid syntax
root@esp32:/# pip3
Traceback (most recent call last):
File "/usr/local/bin/pip3", line 7, in <module>
from pip._internal.cli.main import main
File "/usr/local/lib/python3.5/dist-packages/pip/_internal/cli/main.py", line 60
sys.stderr.write(f"ERROR: {exc}")
^
SyntaxError: invalid syntax
I am totally noob at Linux, I just wanted to update Python from 2.x to 3.x so that Platformio could upgrade and now I messed up everything it seems.
I took what you had, and added another X-Testing
header
var config = {headers: {
'Authorization': 'Basic d2VudHdvcnRobWFuOkNoYW5nZV9tZQ==',
'Accept': 'application/json;odata=verbose',
"X-Testing" : "testing"
}
};
$http.get("/test", config);
And in the Chrome network tab, I see them being sent.
GET /test HTTP/1.1
Host: localhost:3000
Connection: keep-alive
Accept: application/json;odata=verbose
X-Requested-With: XMLHttpRequest
User-Agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_8_3) AppleWebKit/537.22 (KHTML, like Gecko) Chrome/25.0.1364.172 Safari/537.22
Authorization: Basic d2VudHdvcnRobWFuOkNoYW5nZV9tZQ==
X-Testing: testing
Referer: http://localhost:3000/
Accept-Encoding: gzip,deflate,sdch
Accept-Language: en-US,en;q=0.8
Accept-Charset: ISO-8859-1,utf-8;q=0.7,*;q=0.3
Are you not seeing them from the browser, or on the server? Try the browser tooling or a debug proxy and see what is being sent out.
I tried changing value="true"
to ng-value="true"
, and it seems to work.
<input type="radio" name="response2" data-ng-model="choice.isUserAnswer" ng-value="true" />
Also, to get both inputs to work in your example, you'd have to give different name to each input -- e.g. response
should become response1
and response2
.
.p12
and .pfx
are both PKCS #12 files. Am I missing something?
Have you tried renaming the exported .pfx
file to have a .p12
extension?
I use in my batch files - c:\progra~2\
instead of C:\Program Files (x86)\
and it works.
If you are using the Entity Framework and have a huge table with many records Any() will be much faster. I remember one time I wanted to check to see if a table was empty and it had millions of rows. It took 20-30 seconds for Count() > 0 to complete. It was instant with Any().
Any() can be a performance enhancement because it may not have to iterate the collection to get the number of things. It just has to hit one of them. Or, for, say, LINQ-to-Entities, the generated SQL will be IF EXISTS(...) rather than SELECT COUNT ... or even SELECT * ....
The getRow()
method will always yield 0 after a query:
Retrieves the current row number.
Second, you output totalrec
but never assign anything to it.
Based on kynan's answer, here are the same aliases, modified so they can handle spaces and initial dashes in filenames:
accept-ours = "!f() { [ -z \"$@\" ] && set - '.'; git checkout --ours -- \"$@\"; git add -u -- \"$@\"; }; f"
accept-theirs = "!f() { [ -z \"$@\" ] && set - '.'; git checkout --theirs -- \"$@\"; git add -u -- \"$@\"; }; f"
I was using DataGrip (By Intellij Idea). and it was very easy copying data from one table (in a different database to another).
First, make sure you are connected with both DataSources in Data Grip.
Select Source Table and press F5 or (Right-click -> Select Copy Table to.)
This will show you a list of all tables (you can also search using a table name in the popup window). Just select your target and press OK.
DataGrip will handle everything else for you.
You can try:
df[0] = df[0].str.strip()
or more specifically for all string columns
non_numeric_columns = list(set(df.columns)-set(df._get_numeric_data().columns))
df[non_numeric_columns] = df[non_numeric_columns].apply(lambda x : str(x).strip())
Add Following Code
@Override
public boolean onOptionsItemSelected(MenuItem item) {
switch (item.getItemId()) {
case R.id.new_item:
Intent i = new Intent(this,SecondActivity.class);
this.startActivity(i);
return true;
default:
return super.onOptionsItemSelected(item);
}
}
All tags must have enclosing tags. In my case, the hr and input elements weren't closed properly.
Parent Error was: JSX element 'div' has no corresponding closing tag, due to code below:
<hr class="my-4">
<input
type="password"
id="inputPassword"
class="form-control"
placeholder="Password"
required
>
Fix:
<hr class="my-4"/>
<input
type="password"
id="inputPassword"
class="form-control"
placeholder="Password"
required
/>
The parent elements will show errors due to child element errors. Therefore, start investigating from most inner elements up to the parent ones.
This question is very, very, very old, but as a trick in the future, I recommend something like this:
.element{
box-shadow: 0px 0px 10px #232931;
}
.container{
height: 100px;
width: 100px;
overflow: hidden;
}
Basically, you have a box shadow and then wrapping the element in a div with its overflow set to hidden. You'll need to adjust the height, width, and even padding of the div to only show the left box shadow, but it works. See here for an example If you look at the example, you can see how there's no other shadows, but only a black left shadow. Edit: this is a retake of the same screen shot, in case some one thinks that I just cropped out the right. You can find it here
The limitation of execl is that when executing a shell command or any other script that is not in the current working directory, then we have to pass the full path of the command or the script. Example:
execl("/bin/ls", "ls", "-la", NULL);
The workaround to passing the full path of the executable is to use the function execlp, that searches for the file (1st argument of execlp) in those directories pointed by PATH:
execlp("ls", "ls", "-la", NULL);
You can query Active directory via JNDI and run LDAP operations
http://docs.oracle.com/javase/tutorial/jndi/ldap/authentication.html
http://docs.oracle.com/javase/tutorial/jndi/ldap/operations.html
http://mhimu.wordpress.com/2009/03/18/active-directory-authentication-using-javajndi/
I made one that returns number type and also places decimals only if are needed (no 0 padding).
Examples:
roundWithMaxPrecision(11.234, 2); //11.23
roundWithMaxPrecision(11.234, 1); //11.2
roundWithMaxPrecision(11.234, 4); //11.23
roundWithMaxPrecision(11.234, -1); //10
roundWithMaxPrecision(4.2, 2); //4.2
roundWithMaxPrecision(4.88, 1); //4.9
The code:
function roundWithMaxPrecision (n, precision) {
let precisionWithPow10 = Math.pow(10, precision);
return Math.round(n * precisionWithPow10) / precisionWithPow10;
}
HTTP Authorization header problem can be addressed with the following:
var ws = new WebSocket("ws://username:[email protected]/service");
Then, a proper Basic Authorization HTTP header will be set with the provided username
and password
. If you need Basic Authorization, then you're all set.
I want to use Bearer
however, and I resorted to the following trick: I connect to the server as follows:
var ws = new WebSocket("ws://[email protected]/service");
And when my code at the server side receives Basic Authorization header with non-empty username and empty password, then it interprets the username as a token.
Here is some SQL that actually make sense:
SELECT m.id FROM match m LEFT JOIN email e ON e.id = m.id WHERE e.id IS NULL
Simple is always better.
What you may actually want to use is an Iterable
that can return a fresh Iterator
multiple times by calling iterator()
.
//A function that needs to iterate multiple times can be given one Iterable:
public void func(Iterable<Type> ible) {
Iterator<Type> it = ible.iterator(); //Gets an iterator
while (it.hasNext()) {
it.next();
}
it = ible.iterator(); //Gets a NEW iterator, also from the beginning
while (it.hasNext()) {
it.next();
}
}
You must define what the iterator()
method does just once beforehand:
void main() {
LinkedList<String> list; //This could be any type of object that has an iterator
//Define an Iterable that knows how to retrieve a fresh iterator
Iterable<Type> ible = new Iterable<Type>() {
@Override
public Iterator<Type> iterator() {
return list.listIterator(); //Define how to get a fresh iterator from any object
}
};
//Now with a single instance of an Iterable,
func(ible); //you can iterate through it multiple times.
}
there is an Eclipse app called Import Jar As Project. I think it is quite simple and useful. https://marketplace.eclipse.org/content/import-jar-project?mpc=true&mpc_state=
req.route.path is working for me
var pool = require('../db');
module.exports.get_plants = function(req, res) {
// to run a query we can acquire a client from the pool,
// run a query on the client, and then return the client to the pool
pool.connect(function(err, client, done) {
if (err) {
return console.error('error fetching client from pool', err);
}
client.query('SELECT * FROM plants', function(err, result) {
//call `done()` to release the client back to the pool
done();
if (err) {
return console.error('error running query', err);
}
console.log('A call to route: %s', req.route.path + '\nRequest type: ' + req.method.toLowerCase());
res.json(result);
});
});
};
after executing I see the following in the console and I get perfect result in my browser.
Express server listening on port 3000 in development mode
A call to route: /plants
Request type: get
Would this work for you?
if ((letter & (Letters.A | Letters.B)) != 0)
You have to add extra parameter -g, which generates source level debug information. It will look like:
gcc -g prog.c
After that you can use gdb in common way.
Add Column, Add Row, Delete Column, Delete Row. Simplest way
function addColumn(myTable) {
var table = document.getElementById(myTable);
var row = table.getElementsByTagName('tr');
for(i=0;i<row.length;i++){
row[i].innerHTML = row[i].innerHTML + '<td></td>';
}
}
function deleterow(tblId)
{
var table = document.getElementById(tblId);
var row = table.getElementsByTagName('tr');
if(row.length!='1'){
row[row.length - 1].outerHTML='';
}
}
function deleteColumn(tblId)
{
var allRows = document.getElementById(tblId).rows;
for (var i=0; i<allRows.length; i++) {
if (allRows[i].cells.length > 1) {
allRows[i].deleteCell(-1);
}
}
}
function myFunction(myTable) {
var table = document.getElementById(myTable);
var row = table.getElementsByTagName('tr');
var row = row[row.length-1].outerHTML;
table.innerHTML = table.innerHTML + row;
var row = table.getElementsByTagName('tr');
var row = row[row.length-1].getElementsByTagName('td');
for(i=0;i<row.length;i++){
row[i].innerHTML = '';
}
}
_x000D_
table, td {
border: 1px solid black;
border-collapse:collapse;
}
td {
cursor:text;
padding:10px;
}
td:empty:after{
content:"Type here...";
color:#cccccc;
}
_x000D_
<!DOCTYPE html>
<html>
<head>
</head>
<body>
<form>
<p>
<input type="button" value="+Column" onclick="addColumn('tblSample')">
<input type="button" value="-Column" onclick="deleteColumn('tblSample')">
<input type="button" value="+Row" onclick="myFunction('tblSample')">
<input type="button" value="-Row" onclick="deleterow('tblSample')">
</p>
<table id="tblSample" contenteditable><tr><td></td></tr></table>
</form>
</body>
</html>
_x000D_
As @daniel-t points out in the comment: github.com/docker/docker/issues/2174 is about showing binding only to IPv6 in netstat
, but that is not an issue. As that github issues states:
When setting up the proxy, Docker requests the loopback address '127.0.0.1', Linux realises this is an address that exists in IPv6 (as ::0) and opens on both (but it is formally an IPv6 socket). When you run netstat it sees this and tells you it is an IPv6 - but it is still listening on IPv4. If you have played with your settings a little, you may have disabled this trick Linux does - by setting net.ipv6.bindv6only = 1.
In other words, just because you see it as IPv6 only, it is still able to communicate on IPv4 unless you have IPv6 set to only bind on IPv6 with the net.ipv6.bindv6only setting. To be clear, net.ipv6.bindv6only should be 0 - you can run sysctl net.ipv6.bindv6only
to verify.
In the latest version of iOS share ipa through AirDroap from mac to iPhone. it will directly install in your iPhone.
The functionality you're looking for can be achieved through the use of the "defineProperty()" method--which is only available to modern browsers:
I've written a jQuery extension that has some similar functionality if you need more cross browser support:
https://github.com/jarederaj/jQueue
A small jQuery extension that handles queuing callbacks to the existence of a variable, object, or key. You can assign any number of callbacks to any number of data points that might be affected by processes running in the background. jQueue listens and waits for these data you specify to come into existence and then fires off the correct callback with its arguments.
console.log( $('#'+d) ); // single quotes only
console.log( $("#"+d) ); // double quotes only
Your selector results like this, which is overkill with the quotes:
$('"#abc"') // -> it'll try to find <div id='"#abc"'>
// In css, this would be the equivalent:
"#abc"{ /* Wrong */ } // instead of:
#abc{ /* Right */ }
Add this in your Xml - android:background="@android:color/transparent"
<Button
android:id="@+id/button1"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:text="Button"
android:background="@android:color/transparent"
android:textStyle="bold"/>
void strGetRandomAlphaNum(char *sStr, unsigned int iLen)
{
char Syms[] = "0123456789abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ";
unsigned int Ind = 0;
srand(time(NULL) + rand());
while(Ind < iLen)
{
sStr[Ind++] = Syms[rand()%62];
}
sStr[iLen] = '\0';
}
And what about this?
public static IEnumerable<Product> GetAllProducts()
{
using (AdventureWorksEntities db = new AdventureWorksEntities())
{
var products = from product in db.Product
select product;
return products.ToList();
}
}
I guess this is much cleaner. I do not have VS2008 at hand to check, though. In any case, if Products implements IEnumerable (as it seems to - it is used in a foreach statement), I'd return it directly.
To see a list of HTTP request headers, you can use :
console.log(JSON.stringify(req.headers));
to return a list in JSON format.
{
"host":"localhost:8081",
"connection":"keep-alive",
"cache-control":"max-age=0",
"accept":"text/html,application/xhtml+xml,application/xml;q=0.9,image/webp,*/*;q=0.8",
"upgrade-insecure-requests":"1",
"user-agent":"Mozilla/5.0 (Windows NT 6.1; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/44.0.2403.107 Safari/537.36",
"accept-encoding":"gzip, deflate, sdch",
"accept-language":"en-US,en;q=0.8,et;q=0.6"
}
If you really want to use itoa, you need to include the standard library header.
#include <stdlib.h>
I also believe that if you're on Windows (using MSVC), then itoa
is actually _itoa
.
See http://msdn.microsoft.com/en-us/library/yakksftt(v=VS.100).aspx
Then again, since you're getting a message from collect2
, you're likely running GCC on *nix.
This is the universal and best solution for this:
If WScript.Arguments.Count <> 1 Then WScript.Quit 1
RunAsAdmin
Main
Sub RunAsAdmin()
Set Shell = CreateObject("WScript.Shell")
Set Env = Shell.Environment("VOLATILE")
If Shell.Run("%ComSpec% /C ""NET FILE""", 0, True) <> 0 Then
Env("CurrentDirectory") = Shell.CurrentDirectory
ArgsList = ""
For i = 1 To WScript.Arguments.Count
ArgsList = ArgsList & """ """ & WScript.Arguments(i - 1)
Next
CreateObject("Shell.Application").ShellExecute WScript.FullName, """" & WScript.ScriptFullName & ArgsList & """", , "runas", 5
WScript.Sleep 100
Env.Remove("CurrentDirectory")
WScript.Quit
End If
If Env("CurrentDirectory") <> "" Then Shell.CurrentDirectory = Env("CurrentDirectory")
End Sub
Sub Main()
'Your code here!
End Sub
Advantages:
1) The parameter injection is not possible.
2) The number of arguments does not change after the elevation to administrator and then you can check them before you elevate yourself.
3) You know for real and immediately if the script runs as an administrator. For example, if you call it from a control panel uninstallation entry, the RunAsAdmin function will not run unnecessarily because in that case you are already an administrator. Same thing if you call it from a script already elevated to administrator.
4) The window is kept at its current size and position, as it should be.
5) The current directory doesn't change after obtained administrative privileges.
Disadvantages: Nobody
I found the most easiest way to find sum of all the elements of a vector
#include <iostream>
#include<vector>
using namespace std;
int main()
{
vector<int>v(10,1);
int sum=0;
for(int i=0;i<v.size();i++)
{
sum+=v[i];
}
cout<<sum<<endl;
}
In this program, I have a vector of size 10 and are initialized by 1. I have calculated the sum by a simple loop like in array.
The definitive answer (covering changes to jQuery api at version 1.6) has been given by Gnarf
Ok, i find solution changing the path of mysql-conector-java.jar to the follow path:
ProjectName/WebContent/Web-inf/lib/mysql-conector-java.jar
So you need to add the conector to project again and delete the previous one.
Yes, that is true. The ::
operator is used for method referencing. So, one can extract static methods from classes by using it or methods from objects. The same operator can be used even for constructors. All cases mentioned here are exemplified in the code sample below.
The official documentation from Oracle can be found here.
You can have a better overview of the JDK 8 changes in this article. In the Method/Constructor referencing section a code example is also provided:
interface ConstructorReference {
T constructor();
}
interface MethodReference {
void anotherMethod(String input);
}
public class ConstructorClass {
String value;
public ConstructorClass() {
value = "default";
}
public static void method(String input) {
System.out.println(input);
}
public void nextMethod(String input) {
// operations
}
public static void main(String... args) {
// constructor reference
ConstructorReference reference = ConstructorClass::new;
ConstructorClass cc = reference.constructor();
// static method reference
MethodReference mr = cc::method;
// object method reference
MethodReference mr2 = cc::nextMethod;
System.out.println(cc.value);
}
}
See also: Which C I/O library should be used in C++ code?
struct Item
{
std::string artist;
std::string c;
integer price; // in cents (as floating point is not acurate)
std::string Genre;
integer disc;
integer sale;
integer tax;
};
std::cout << "Sales Report for September 15, 2010\n"
<< "Artist Title Price Genre Disc Sale Tax Cash\n";
FOREACH(Item loop,data)
{
fprintf(stdout,"%8s%8s%8.2f%7s%1s%8.2f%8.2f\n",
, loop.artist
, loop.title
, loop.price / 100.0
, loop.Genre
, loop.disc , "%"
, loop.sale / 100.0
, loop.tax / 100.0);
// or
std::cout << std::setw(8) << loop.artist
<< std::setw(8) << loop.title
<< std::setw(8) << fixed << setprecision(2) << loop.price / 100.0
<< std::setw(8) << loop.Genre
<< std::setw(7) << loop.disc << std::setw(1) << "%"
<< std::setw(8) << fixed << setprecision(2) << loop.sale / 100.0
<< std::setw(8) << fixed << setprecision(2) << loop.tax / 100.0
<< "\n";
// or
std::cout << boost::format("%8s%8s%8.2f%7s%1s%8.2f%8.2f\n")
% loop.artist
% loop.title
% loop.price / 100.0
% loop.Genre
% loop.disc % "%"
% loop.sale / 100.0
% loop.tax / 100.0;
}
I like to use custom conditions. Here's some code in Python:
def conditions(driver):
flag = True
ticker = driver.find_elements_by_id("textbox")
if not ticker:
flag = False
return flag
... click something to load ...
self.wait = WebDriverWait(driver, timeout)
self.wait.until(conditions)
Whenever you need to wait, you can do it explicitly by checking existance of a certain element (such element may vary from page to page). find_elements_by_id
returns list - empty or not, you have just to check.
Beside the methods described in previous answers, you can also use a free execution plan viewer and query optimization tool ApexSQL Plan (which I’ve recently bumped into).
You can install and integrate ApexSQL Plan into SQL Server Management Studio, so execution plans can be viewed from SSMS directly.
Viewing Estimated execution plans in ApexSQL Plan
Viewing Actual execution plans in ApexSQL Plan
To view the Actual execution plan of a query, continue from the 2nd step mentioned previously, but now, once the Estimated plan is shown, click the “Actual” button from the main ribbon bar in ApexSQL Plan.
Once the “Actual” button is clicked, the Actual execution plan will be shown with detailed preview of the cost parameters along with other execution plan data.
More information about viewing execution plans can be found by following this link.
It may be late. It is Happen because your git HEAD is not updated.
this commend would solve that git reset HEAD
.
Add these methods to your Activity:
private MyService myServiceBinder;
public ServiceConnection myConnection = new ServiceConnection() {
public void onServiceConnected(ComponentName className, IBinder binder) {
myServiceBinder = ((MyService.MyBinder) binder).getService();
Log.d("ServiceConnection","connected");
showServiceData();
}
public void onServiceDisconnected(ComponentName className) {
Log.d("ServiceConnection","disconnected");
myService = null;
}
};
public Handler myHandler = new Handler() {
public void handleMessage(Message message) {
Bundle data = message.getData();
}
};
public void doBindService() {
Intent intent = null;
intent = new Intent(this, BTService.class);
// Create a new Messenger for the communication back
// From the Service to the Activity
Messenger messenger = new Messenger(myHandler);
intent.putExtra("MESSENGER", messenger);
bindService(intent, myConnection, Context.BIND_AUTO_CREATE);
}
And you can bind to service by ovverriding onResume(), and onPause() at your Activity class.
@Override
protected void onResume() {
Log.d("activity", "onResume");
if (myService == null) {
doBindService();
}
super.onResume();
}
@Override
protected void onPause() {
//FIXME put back
Log.d("activity", "onPause");
if (myService != null) {
unbindService(myConnection);
myService = null;
}
super.onPause();
}
Note, that when binding to a service only the onCreate()
method is called in the service class.
In your Service class you need to define the myBinder method:
private final IBinder mBinder = new MyBinder();
private Messenger outMessenger;
@Override
public IBinder onBind(Intent arg0) {
Bundle extras = arg0.getExtras();
Log.d("service","onBind");
// Get messager from the Activity
if (extras != null) {
Log.d("service","onBind with extra");
outMessenger = (Messenger) extras.get("MESSENGER");
}
return mBinder;
}
public class MyBinder extends Binder {
MyService getService() {
return MyService.this;
}
}
After you defined these methods you can reach the methods of your service at your Activity:
private void showServiceData() {
myServiceBinder.myMethod();
}
and finally you can start your service when some event occurs like _BOOT_COMPLETED_
public class MyReciever extends BroadcastReceiver {
public void onReceive(Context context, Intent intent) {
String action = intent.getAction();
if (action.equals("android.intent.action.BOOT_COMPLETED")) {
Intent service = new Intent(context, myService.class);
context.startService(service);
}
}
}
note that when starting a service the onCreate()
and onStartCommand()
is called in service class
and you can stop your service when another event occurs by stopService()
note that your event listener should be registerd in your Android manifest file:
<receiver android:name="MyReciever" android:enabled="true" android:exported="true">
<intent-filter>
<action android:name="android.intent.action.BOOT_COMPLETED" />
</intent-filter>
</receiver>
In the "project" page on the top left corner in android studio.
From dropdown goto Android >> Gradle Scripts >> Build Gradle(Module :app)
make sure the first line of this file is like this.
apply plugin: 'com.android.application'
not like this
apply plugin: 'com.android.library'
select * FROM information_schema.views\G;
array_shift
the only parameter is an array passed by reference. The return value of explode(".", $value)
does not have any reference. Hence the error.
You should store the return value to a variable first.
$arr = explode(".", $value);
$extension = strtolower(array_pop($arr));
$fileName = array_shift($arr);
From PHP.net
The following things can be passed by reference:
- Variables, i.e. foo($a)
- New statements, i.e. foo(new foobar())
- [References returned from functions][2]
No other expressions should be passed by reference, as the result is undefined. For example, the following examples of passing by reference are invalid:
I am not sure about DO-WHILE IN MS SQL Server 2008 but you can change your WHILE loop logic, so as to USE like DO-WHILE loop.
Examples are taken from here: http://blog.sqlauthority.com/2007/10/24/sql-server-simple-example-of-while-loop-with-continue-and-break-keywords/
Example of WHILE Loop
DECLARE @intFlag INT SET @intFlag = 1 WHILE (@intFlag <=5) BEGIN PRINT @intFlag SET @intFlag = @intFlag + 1 END GO
ResultSet:
1 2 3 4 5
Example of WHILE Loop with BREAK keyword
DECLARE @intFlag INT SET @intFlag = 1 WHILE (@intFlag <=5) BEGIN PRINT @intFlag SET @intFlag = @intFlag + 1 IF @intFlag = 4 BREAK; END GO
ResultSet:
1 2 3
Example of WHILE Loop with CONTINUE and BREAK keywords
DECLARE @intFlag INT SET @intFlag = 1 WHILE (@intFlag <=5) BEGIN PRINT @intFlag SET @intFlag = @intFlag + 1 CONTINUE; IF @intFlag = 4 -- This will never executed BREAK; END GO
ResultSet:
1 2 3 4 5
But try to avoid loops at database level. Reference.
This unfortunately breaks other things. Here is the fix I found on another site that seemed to work for me:
I'd say leave the X-UA-Compatible
as "IE=8"
and add the following code to the bottom of your master page:
<script language="javascript">
/* IE11 Fix for SP2010 */
if (typeof(UserAgentInfo) != 'undefined' && !window.addEventListener)
{
UserAgentInfo.strBrowser=1;
}
</script>
This fixes a bug in core.js
which incorrectly calculates that sets UserAgentInfo.strBrowse=3
for IE11 and thus supporting addEventListener
. I'm not entirely sure on the details other than that but the combination of keeping IE=8 and using this script is working for me. Fingers crossed until I find the next IE11/SharePoint "bug"!
Excerpt from the Java API for addAll(collection c) in Interface List see here
"Appends all of the elements in the specified collection to the end of this list, in the order that they are returned by the specified collection's iterator (optional operation)."
You you will have as much object as you have in both lists - the number of objects in your first list plus the number of objects you have in your second list - in your case 100.
Look here: http://en.cppreference.com/w/cpp/algorithm/sort.
It says:
template< class RandomIt, class Compare >
void sort( RandomIt first, RandomIt last, Compare comp );
bool cmp(const Type1 &a, const Type2 &b);
Also, here's an example of how you can use std::sort
using a custom C++14 polymorphic lambda:
std::sort(std::begin(container), std::end(container),
[] (const auto& lhs, const auto& rhs) {
return lhs.first < rhs.first;
});
You can also try my ubuntu repository: https://launchpad.net/~mmk2410/+archive/ubuntu/intellij-idea
To use it just run the following commands:
sudo apt-add-repository ppa:mmk2410/intellij-idea
sudo apt-get update
The community edition can then installed with
sudo apt-get install intellij-idea-community
and the ultimate edition with
sudo apt-get install intellij-idea-ultimate
This worked for me :
select option {
color: black;
}
select:not(:checked) {
color: gray;
}
In late, but got here via Google, so for the sake of posterity, I'll add an alternative solution.
Another approach is to use TOP twice, with alternating orders. I don't know if it is "pure SQL", because it uses a variable in the TOP, but it works in SQL Server 2008. Here's an example I use against a table of dictionary words, if I want a random word.
SELECT TOP 1
word
FROM (
SELECT TOP(@idx)
word
FROM
dbo.DictionaryAbridged WITH(NOLOCK)
ORDER BY
word DESC
) AS D
ORDER BY
word ASC
Of course, @idx is some randomly-generated integer that ranges from 1 to COUNT(*) on the target table, inclusively. If your column is indexed, you'll benefit from it too. Another advantage is that you can use it in a function, since NEWID() is disallowed.
Lastly, the above query runs in about 1/10 of the exec time of a NEWID()-type of query on the same table. YYMV.
This works for me:
Receive
import socket
import struct
MCAST_GRP = '224.1.1.1'
MCAST_PORT = 5007
IS_ALL_GROUPS = True
sock = socket.socket(socket.AF_INET, socket.SOCK_DGRAM, socket.IPPROTO_UDP)
sock.setsockopt(socket.SOL_SOCKET, socket.SO_REUSEADDR, 1)
if IS_ALL_GROUPS:
# on this port, receives ALL multicast groups
sock.bind(('', MCAST_PORT))
else:
# on this port, listen ONLY to MCAST_GRP
sock.bind((MCAST_GRP, MCAST_PORT))
mreq = struct.pack("4sl", socket.inet_aton(MCAST_GRP), socket.INADDR_ANY)
sock.setsockopt(socket.IPPROTO_IP, socket.IP_ADD_MEMBERSHIP, mreq)
while True:
# For Python 3, change next line to "print(sock.recv(10240))"
print sock.recv(10240)
Send
import socket
MCAST_GRP = '224.1.1.1'
MCAST_PORT = 5007
# regarding socket.IP_MULTICAST_TTL
# ---------------------------------
# for all packets sent, after two hops on the network the packet will not
# be re-sent/broadcast (see https://www.tldp.org/HOWTO/Multicast-HOWTO-6.html)
MULTICAST_TTL = 2
sock = socket.socket(socket.AF_INET, socket.SOCK_DGRAM, socket.IPPROTO_UDP)
sock.setsockopt(socket.IPPROTO_IP, socket.IP_MULTICAST_TTL, MULTICAST_TTL)
# For Python 3, change next line to 'sock.sendto(b"robot", ...' to avoid the
# "bytes-like object is required" msg (https://stackoverflow.com/a/42612820)
sock.sendto("robot", (MCAST_GRP, MCAST_PORT))
It is based off the examples from http://wiki.python.org/moin/UdpCommunication which didn't work.
My system is... Linux 2.6.31-15-generic #50-Ubuntu SMP Tue Nov 10 14:54:29 UTC 2009 i686 GNU/Linux Python 2.6.4
#!/usr/bin/python
# -*- coding: utf-8 -*-
import sys, csv, sqlite3
def main():
con = sqlite3.connect(sys.argv[1]) # database file input
cur = con.cursor()
cur.executescript("""
DROP TABLE IF EXISTS t;
CREATE TABLE t (COL1 TEXT, COL2 TEXT);
""") # checks to see if table exists and makes a fresh table.
with open(sys.argv[2], "rb") as f: # CSV file input
reader = csv.reader(f, delimiter=',') # no header information with delimiter
for row in reader:
to_db = [unicode(row[0], "utf8"), unicode(row[1], "utf8")] # Appends data from CSV file representing and handling of text
cur.execute("INSERT INTO neto (COL1, COL2) VALUES(?, ?);", to_db)
con.commit()
con.close() # closes connection to database
if __name__=='__main__':
main()
You may need to install or set the location of the Xcode Command Line Tools.
If you have Xcode downloaded you can run the following to set the path:
sudo xcode-select -s /Applications/Xcode.app
If the command line tools haven't been installed yet, you may need to run this first:
xcode-select --install
You may need to accept the Xcode license before installing command line tools:
sudo xcodebuild -license accept
Or adjust the Command Line Tools
setting via Xcode (Xcode > Preferences > Locations
):
>>> dict(zip(keys, values))
{0: 'Hi', 1: 'I', 2: 'am', 3: 'John'}
You can flatten the list and then store the values to a CommaSeparatedIntegerField. When you read back from the database, just group the values back into threes.
Disclaimer: according to database normalization theory, it is better not to store collections in single fields; instead you would be encouraged to store the values in those triplets in their own fields and link them via foreign keys. In the real world, though, sometimes that is too cumbersome/slow.
- (UIImage *)resizeImage:(UIImage*)image newSize:(CGSize)newSize {
CGRect newRect = CGRectIntegral(CGRectMake(0, 0, newSize.width, newSize.height));
CGImageRef imageRef = image.CGImage;
UIGraphicsBeginImageContextWithOptions(newSize, NO, 0);
CGContextRef context = UIGraphicsGetCurrentContext();
CGContextSetInterpolationQuality(context, kCGInterpolationHigh);
CGAffineTransform flipVertical = CGAffineTransformMake(1, 0, 0, -1, 0, newSize.height);
CGContextConcatCTM(context, flipVertical);
CGContextDrawImage(context, newRect, imageRef);
CGImageRef newImageRef = CGBitmapContextCreateImage(context);
UIImage *newImage = [UIImage imageWithCGImage:newImageRef];
CGImageRelease(newImageRef);
UIGraphicsEndImageContext();
return newImage;
}
You need to put it in the join
clause, not the where
:
SELECT *
FROM categories
LEFT JOIN user_category_subscriptions ON
user_category_subscriptions.category_id = categories.category_id
and user_category_subscriptions.user_id =1
See, with an inner join
, putting a clause in the join
or the where
is equivalent. However, with an outer join
, they are vastly different.
As a join
condition, you specify the rowset that you will be joining to the table. This means that it evaluates user_id = 1
first, and takes the subset of user_category_subscriptions
with a user_id
of 1
to join to all of the rows in categories
. This will give you all of the rows in categories
, while only the categories
that this particular user has subscribed to will have any information in the user_category_subscriptions
columns. Of course, all other categories
will be populated with null
in the user_category_subscriptions
columns.
Conversely, a where
clause does the join, and then reduces the rowset. So, this does all of the joins and then eliminates all rows where user_id
doesn't equal 1
. You're left with an inefficient way to get an inner join
.
Hopefully this helps!
json
is a built-in module, you don't need to install it with pip
.
I don't know of a global setting nither but you can try this:
Addition to third answer: If you're using non-english Windows, you can find "Credentials Manager" through "Control panel" > "User Accounts" > "Credentials Manager" Icon of Credentials Manager
There is not really any other way in JavaScript to concatenate strings.
You could theoretically use .concat()
, but that's way slower than just +
Libraries are more often than not slower than native JavaScript, especially on basic operations like string concatenation, or numerical operations.
Simply put: +
is the fastest.
The position: fixed;
solution has a drawback - the page jumps to the top when this style is applied. Angular's Material Dialog has a nice solution, where they fake the scroll position by applying positioning to the html
element.
Below is my revised algorithm for vertical scrolling only. Left scroll blocking is done in the exact same manner.
// This class applies the following styles:
// position: fixed;
// overflow-y: scroll;
// width: 100%;
const NO_SCROLL_CLASS = "bp-no-scroll";
const coerceCssPixelValue = value => {
if (value == null) {
return "";
}
return typeof value === "string" ? value : `${value}px`;
};
export const blockScroll = () => {
const html = document.documentElement;
const documentRect = html.getBoundingClientRect();
const { body } = document;
// Cache the current scroll position to be restored later.
const cachedScrollPosition =
-documentRect.top || body.scrollTop || window.scrollY || document.scrollTop || 0;
// Cache the current inline `top` value in case the user has set it.
const cachedHTMLTop = html.style.top || "";
// Using `html` instead of `body`, because `body` may have a user agent margin,
// whereas `html` is guaranteed not to have one.
html.style.top = coerceCssPixelValue(-cachedScrollPosition);
// Set the magic class.
html.classList.add(NO_SCROLL_CLASS);
// Return a function to remove the scroll block.
return () => {
const htmlStyle = html.style;
const bodyStyle = body.style;
// We will need to seamlessly restore the original scroll position using
// `window.scroll`. To do that we will change the scroll behavior to `auto`.
// Here we cache the current scroll behavior to restore it later.
const previousHtmlScrollBehavior = htmlStyle.scrollBehavior || "";
const previousBodyScrollBehavior = bodyStyle.scrollBehavior || "";
// Restore the original inline `top` value.
htmlStyle.top = cachedHTMLTop;
// Remove the magic class.
html.classList.remove(NO_SCROLL_CLASS);
// Disable user-defined smooth scrolling temporarily while we restore the scroll position.
htmlStyle.scrollBehavior = bodyStyle.scrollBehavior = "auto";
// Restore the original scroll position.
window.scroll({
top: cachedScrollPosition.top
});
// Restore the original scroll behavior.
htmlStyle.scrollBehavior = previousHtmlScrollBehavior;
bodyStyle.scrollBehavior = previousBodyScrollBehavior;
};
};
The logic is very simple and can be simplified even more if you don't care about certain edge cases. For example, this is what I use:
export const blockScroll = () => {
const html = document.documentElement;
const documentRect = html.getBoundingClientRect();
const { body } = document;
const screenHeight = window.innerHeight;
// Only do the magic if document is scrollable
if (documentRect.height > screenHeight) {
const cachedScrollPosition =
-documentRect.top || body.scrollTop || window.scrollY || document.scrollTop || 0;
html.style.top = coerceCssPixelValue(-cachedScrollPosition);
html.classList.add(NO_SCROLL_CLASS);
return () => {
html.classList.remove(NO_SCROLL_CLASS);
window.scroll({
top: cachedScrollPosition,
behavior: "auto"
});
};
}
};
Basically you need to "merge backwards" - apply a diff between the current and previous version to the current version (so you end up with a working copy looking like the old version) and then commit again. So for example to go from revision 150 (current) back to revision 140:
svn update
svn merge -r 150:140 .
svn commit -m "Rolled back to r140"
The Subversion Red Book has a good section about this.
In Loops, I always prefer to use the Cells
class, using the R1C1 reference method, like this:
Cells(rr, col).Formula = ...
This allows me to quickly and easily loop over a Range of cells easily:
Dim r As Long
Dim c As Long
c = GetTargetColumn() ' Or you could just set this manually, like: c = 1
With Sheet1 ' <-- You should always qualify a range with a sheet!
For r = 1 To 10 ' Or 1 To (Ubound(MyListOfStuff) + 1)
' Here we're looping over all the cells in rows 1 to 10, in Column "c"
.Cells(r, c).Value = MyListOfStuff(r)
'---- or ----
'...to easily copy from one place to another (even with an offset of rows and columns)
.Cells(r, c).Value = Sheet2.Cells(r + 3, 17).Value
Next r
End With
You need
ALTER TABLE YourTable ALTER COLUMN YourColumn <<new_datatype>> [NULL | NOT NULL]
But remember to specify NOT NULL
explicitly if desired.
ALTER TABLE YourTable ALTER COLUMN YourColumn VARCHAR (500) NOT NULL;
If you leave it unspecified as below...
ALTER TABLE YourTable ALTER COLUMN YourColumn VARCHAR (500);
Then the column will default to allowing nulls even if it was originally defined as NOT NULL
. i.e. omitting the specification in an ALTER TABLE ... ALTER COLUMN
is always treated as.
ALTER TABLE YourTable ALTER COLUMN YourColumn VARCHAR (500) NULL;
This behaviour is different from that used for new columns created with ALTER TABLE
(or at CREATE TABLE
time). There the default nullability depends on the ANSI_NULL_DFLT
settings.
I'm in the process of setting up a CI build server on a Linux box for a legacy system started in 2000. There is a section that generates a PDF that contains non-UTF8 characters. We are in the final steps of a release, so I cannot replace the characters giving me grief, yet for Dilbertesque reasons, I cannot wait a week to solve this issue after the release. Fortunately, the "javac" command in Ant has an "encoding" parameter.
<javac destdir="${classes.dir}" classpathref="production-classpath" debug="on"
includeantruntime="false" source="${java.level}" target="${java.level}"
encoding="iso-8859-1">
<src path="${production.dir}" />
</javac>
$scriptBlock = [Scriptblock]::Create(@'
echo 'before'
ipconfig /all
echo 'after'
'@)
Invoke-Command -ComputerName AD01 -ScriptBlock $scriptBlock
First, try omitting the quotes from 12 and 24. Worth a shot.
Second, it's better to do this in CSS. See also http://www.w3schools.com/css/css_font.asp . Here is an inline style for a table tag:
<table style='font-family:"Courier New", Courier, monospace; font-size:80%' ...>...</table>
Better still, use an external style sheet or a style tag near the top of your HTML document. See also http://www.w3schools.com/css/css_howto.asp .
I spent the better part of a day fiddling with this problem. Turned out the RowBackground Property on the DataGrid - which I had set - was overriding all attempts to change it in . As soon as I deleted it, everything worked. (Same goes for Foreground set in DataGridTextColumn, by the way).
I know this is bad.. But I have been in hard situation where it is impossible to put this back to controller or model.
My solution is to call a function on model. It can be do inside a view. But you have to make sure the model has been loaded to your controller first.
Say your model main_model, you can call function on the model like this on your view : $this->main_model->your_function();
Hope this help. :)
Not sure if this is helpful or exactly relevant to your question, but if you are trying to fetch and checkout only a single branch from the remote repository, then the following git commands will do the trick:
url= << URL TO REPOSITORY >>
branch= << BRANCH NAME >>
git init
git remote add origin $url
git fetch origin $branch:origin/$branch
git checkout -b $branch --track origin/$branch
ACTIONS = {
1 : "Created",
2 : "Deleted",
3 : "Updated",
4 : "Renamed from something",
5 : "Renamed to something"
}
FILE_LIST_DIRECTORY = 0x0001
class myThread (threading.Thread):
def __init__(self, threadID, fileName, directory, origin):
threading.Thread.__init__(self)
self.threadID = threadID
self.fileName = fileName
self.daemon = True
self.dir = directory
self.originalFile = origin
def run(self):
startMonitor(self.fileName, self.dir, self.originalFile)
def startMonitor(fileMonitoring,dirPath,originalFile):
hDir = win32file.CreateFile (
dirPath,
FILE_LIST_DIRECTORY,
win32con.FILE_SHARE_READ | win32con.FILE_SHARE_WRITE,
None,
win32con.OPEN_EXISTING,
win32con.FILE_FLAG_BACKUP_SEMANTICS,
None
)
# Wait for new data and call ProcessNewData for each new chunk that's
# written
while 1:
# Wait for a change to occur
results = win32file.ReadDirectoryChangesW (
hDir,
1024,
False,
win32con.FILE_NOTIFY_CHANGE_LAST_WRITE,
None,
None
)
# For each change, check to see if it's updating the file we're
# interested in
for action, file_M in results:
full_filename = os.path.join (dirPath, file_M)
#print file, ACTIONS.get (action, "Unknown")
if len(full_filename) == len(fileMonitoring) and action == 3:
#copy to main file
...