You can use swiftmailer for it. By using batch process.
<?php
$message = Swift_Message::newInstance()
->setSubject('Let\'s get together today.')
->setFrom(array('[email protected]' => 'From Me'))
->setBody('Here is the message itself')
->addPart('<b>Test message being sent!!</b>', 'text/html');
$data = mysql_query('SELECT first, last, email FROM users WHERE is_active=1') or die(mysql_error());
while($row = mysql_fetch_assoc($data))
{
$message->addTo($row['email'], $row['first'] . ' ' . $row['last']);
}
$message->batchSend();
?>
From the bash manpage:
When bash is invoked as an interactive login shell, or as a non-interactive shell with the
--login
option, it first reads and executes commands from the file/etc/profile
, if that file exists. After reading that file, it looks for~/.bash_profile
,~/.bash_login
, and~/.profile
, in that order, and reads and executes commands from the first one that exists and is readable. The--noprofile
option may be used when the shell is started to inhibit this behavior.When a login shell exits, bash reads and executes commands from the file
~/.bash_logout
, if it exists.When an interactive shell that is not a login shell is started, bash reads and executes commands from
~/.bashrc
, if that file exists. This may be inhibited by using the--norc
option. The--rcfile
file option will force bash to read and execute commands from file instead of~/.bashrc
.
Thus, if you want to get the same behavior for both login shells and interactive non-login shells, you should put all of your commands in either .bashrc
or .bash_profile
, and then have the other file source the first one.
You need to take out a float: left; property... because when you use float the parent div do not grub the height of it's children... If you want the parent dive to get the children height you need to give to the parent div a css property overflow:hidden; But to solve your problem you can use display: table-cell; instead of float... it will automatically scale the div height to its parent height...
Swamibebop's solution works, but by taking advantage of table.*
syntax, we can avoid repeating the column names of the inner select
and get a simpler/shorter result:
SELECT @r := @r+1 ,
z.*
FROM(/* your original select statement goes in here */)z,
(SELECT @r:=0)y;
So that will give you:
SELECT @r := @r+1 ,
z.*
FROM(
SELECT itemID,
count(*) AS ordercount
FROM orders
GROUP BY itemID
ORDER BY ordercount DESC
)z,
(SELECT @r:=0)y;
You could do something like this
String[] myStrings = { "One", "Two", "Three" };
or in expression
functionCall(new String[] { "One", "Two", "Three" });
or
String myStrings[];
myStrings = new String[] { "One", "Two", "Three" };
no javascript or third party 'tools' necessary, use this:
<iframe src="https://www.google.com/maps/embed/v1/place?key=<YOUR API KEY>&q=71.0378379,-110.05995059999998"></iframe>
the place parameter provides the marker
there are a few options for the format of the 'q' parameter
make sure you have Google Maps Embed API and Static Maps API enabled in your APIs, or google will block the request
for more information check here
You can watch this tutorial: http://www.youtube.com/watch?v=iDyEfKWCzhg Make sure the context menu is hidden at first and has a position of absolute. This will ensure that there won't be multiple context menu and useless creation of context menu. The link to the page is placed in the description of the YouTube video.
$(document).bind("contextmenu", function(event){
$("#contextmenu").css({"top": event.pageY + "px", "left": event.pageX + "px"}).show();
});
$(document).bind("click", function(){
$("#contextmenu").hide();
});
In my case I needed to check the flags inside a docker container which didn't had most of the basic utilities (ps, pstree...)
Using jps
I got the PID of the JVM running (in my case 1) and then with jcmd 1 VM.flags
I got the flags from the running JVM.
It depends on what commands you have available, but this might help someone. :)
README.md
or .mkdn
or .markdown
denotes that the file is markdown formatted.
Markdown is a markup language. With it you can easily display headers or have italic words, or bold or almost anything that can be done to text
for(var key in object) {
console.log(object[key]);
}
Either one of the following links should take care of this:
http://ipinfodb.com/ip_location_api_json.php
Those links have tutorials for getting a users location through Javascript. However, they do so through an API to an external data service. If you have an extremely high traffic site, you might want to hosting the data yourself (or getting a premium api service). To host everything yourself, you will have to host a database with IP Geolocation and use ajax to feed the users location into Javascript. If this is the approach you want to take, you can get a free database of IP information below:
http://www.ipinfodb.com/ip_database.php
Please note that this method entails having to periodically update the database to stay accurate in tracing ips to locations.
You can use
hdfs fsck /
to determine which files are having problems. Look through the output for missing or corrupt blocks (ignore under-replicated blocks for now). This command is really verbose especially on a large HDFS filesystem so I normally get down to the meaningful output with
hdfs fsck / | egrep -v '^\.+$' | grep -v eplica
which ignores lines with nothing but dots and lines talking about replication.
Once you find a file that is corrupt
hdfs fsck /path/to/corrupt/file -locations -blocks -files
Use that output to determine where blocks might live. If the file is larger than your block size it might have multiple blocks.
You can use the reported block numbers to go around to the datanodes and the namenode logs searching for the machine or machines on which the blocks lived. Try looking for filesystem errors on those machines. Missing mount points, datanode not running, file system reformatted/reprovisioned. If you can find a problem in that way and bring the block back online that file will be healthy again.
Lather rinse and repeat until all files are healthy or you exhaust all alternatives looking for the blocks.
Once you determine what happened and you cannot recover any more blocks, just use the
hdfs fs -rm /path/to/file/with/permanently/missing/blocks
command to get your HDFS filesystem back to healthy so you can start tracking new errors as they occur.
From ios 10.0 we need set { self.orientations = newValue }
for setting up the orientation, Make sure landscape property is enabled in your project.
private var orientations = UIInterfaceOrientationMask.landscapeLeft
override var supportedInterfaceOrientations : UIInterfaceOrientationMask {
get { return self.orientations }
set { self.orientations = newValue }
}
I found this post by looking for a rather comparable solution. For picking multiple elements out of a dict, this can be used:
idx_picks = np.random.choice(len(d), num_of_picks, replace=False) #(Don't pick the same element twice)
result = dict ()
c_keys = [d.keys()] #not so efficient - unfortunately .keys() returns a non-indexable object because dicts are unordered
for i in idx_picks:
result[c_keys[i]] = d[i]
This may work for you:
select t1.*
from table t1
join (select t2.Chromosome, t2.Locus
from table2
group by t2.Chromosome, t2.Locus
having count(*) > 1) u on u.Chromosome = t1.Chromosome and u.Locus = t1.Locus
As in Oracle you can use NVL function in MySQL you can use IFNULL(columnaName, newValue) to achieve your desired result as in this example
SELECT column_name from table_name WHERE IFNULL(column_name,'') NOT LIKE '%_%';
You still have access to StreamWriter
:
using (System.IO.StreamWriter file = new System.IO.StreamWriter(@"\hereIam.txt"))
{
file.WriteLine(sb.ToString()); // "sb" is the StringBuilder
}
From the MSDN documentation: Writing to a Text File (Visual C#).
For newer versions of the .NET Framework (Version 2.0. onwards), this can be achieved with one line using the File.WriteAllText
method.
System.IO.File.WriteAllText(@"C:\TextFile.txt", stringBuilder.ToString());
You can make up a class, RestTemplateXML, which extends RestTemplate. Then override doExecute(URI, HttpMethod, RequestCallback, ResponseExtractor<T>)
, and explicitly get response-headers
and set content-type
to application/xml
.
Now Spring reads the headers and knows that it is `application/xml'. It is kind of a hack but it works.
public class RestTemplateXML extends RestTemplate {
@Override
protected <T> T doExecute(URI url, HttpMethod method, RequestCallback requestCallback,
ResponseExtractor<T> responseExtractor) throws RestClientException {
logger.info( RestTemplateXML.class.getSuperclass().getSimpleName() + ".doExecute() is overridden");
Assert.notNull(url, "'url' must not be null");
Assert.notNull(method, "'method' must not be null");
ClientHttpResponse response = null;
try {
ClientHttpRequest request = createRequest(url, method);
if (requestCallback != null) {
requestCallback.doWithRequest(request);
}
response = request.execute();
// Set ContentType to XML
response.getHeaders().setContentType(MediaType.APPLICATION_XML);
if (!getErrorHandler().hasError(response)) {
logResponseStatus(method, url, response);
}
else {
handleResponseError(method, url, response);
}
if (responseExtractor != null) {
return responseExtractor.extractData(response);
}
else {
return null;
}
}
catch (IOException ex) {
throw new ResourceAccessException("I/O error on " + method.name() +
" request for \"" + url + "\":" + ex.getMessage(), ex);
}
finally {
if (response != null) {
response.close();
}
}
}
private void logResponseStatus(HttpMethod method, URI url, ClientHttpResponse response) {
if (logger.isDebugEnabled()) {
try {
logger.debug(method.name() + " request for \"" + url + "\" resulted in " +
response.getRawStatusCode() + " (" + response.getStatusText() + ")");
}
catch (IOException e) {
// ignore
}
}
}
private void handleResponseError(HttpMethod method, URI url, ClientHttpResponse response) throws IOException {
if (logger.isWarnEnabled()) {
try {
logger.warn(method.name() + " request for \"" + url + "\" resulted in " +
response.getRawStatusCode() + " (" + response.getStatusText() + "); invoking error handler");
}
catch (IOException e) {
// ignore
}
}
getErrorHandler().handleError(response);
}
}
ifeq ($(CHIPSET),8960)
BLD_ENV_BUILD_ID="8960"
else ifeq ($(CHIPSET),8930)
BLD_ENV_BUILD_ID="8930"
else ifeq ($(CHIPSET),8064)
BLD_ENV_BUILD_ID="8064"
else ifeq ($(CHIPSET), 9x15)
BLD_ENV_BUILD_ID="9615"
else
BLD_ENV_BUILD_ID=
endif
The following constructor, JLabel(String, int)
, allow you to specify the horizontal alignment of the label.
JLabel label = new JLabel("The Label", SwingConstants.CENTER);
std::vector<CustomClass *> whatever(20000);
or:
std::vector<CustomClass *> whatever;
whatever.reserve(20000);
The former sets the actual size of the array -- i.e., makes it a vector of 20000 pointers. The latter leaves the vector empty, but reserves space for 20000 pointers, so you can insert (up to) that many without it having to reallocate.
At least in my experience, it's fairly unusual for either of these to make a huge difference in performance--but either can affect correctness under some circumstances. In particular, as long as no reallocation takes place, iterators into the vector are guaranteed to remain valid, and once you've set the size/reserved space, you're guaranteed there won't be any reallocations as long as you don't increase the size beyond that.
Your line:
img = cv2.rectangle(img,(x,y),(x+w,y+h),(255,0,0),2)
will draw a rectangle in the image, but the return value will be None, so img changes to None and cannot be drawn.
Try
cv2.rectangle(img,(x,y),(x+w,y+h),(255,0,0),2)
If you need to know the default collation for a newly created database use:
SELECT SERVERPROPERTY('Collation')
This is the server collation for the SQL Server instance that you are running.
Just using plain JavaScript, this has been answered already: remove objects from array by object property.
Using underscore.js, you could combine .findWhere
with .without
:
var arr = [{_x000D_
id: 1,_x000D_
name: 'a'_x000D_
}, {_x000D_
id: 2,_x000D_
name: 'b'_x000D_
}, {_x000D_
id: 3,_x000D_
name: 'c'_x000D_
}];_x000D_
_x000D_
//substract third_x000D_
arr = _.without(arr, _.findWhere(arr, {_x000D_
id: 3_x000D_
}));_x000D_
console.log(arr);
_x000D_
<script src="https://cdnjs.cloudflare.com/ajax/libs/underscore.js/1.8.3/underscore-min.js"></script>
_x000D_
Although, since you are creating a new array in this case anyway, you could simply use _.filter
or the native Array.prototype.filter
function (just like shown in the other question). Then you would only iterate over array once instead of potentially twice like here.
If you want to modify the array in-place, you have to use .splice
. This is also shown in the other question and undescore doesn't seem to provide any useful function for that.
Bubble-sort (or, safer yet, bi-directional bubble sort) is likely ideal for mostly sorted lists, though I bet a tweaked comb-sort (with a much lower initial gap size) would be a little faster when the list wasn't quite as perfectly sorted. Comb sort degrades to bubble-sort.
To avoid this warning, do not use:
async: false
in any of your $.ajax()
calls. This is the only feature of XMLHttpRequest
that's deprecated.
The default is async: true
, so if you never use this option at all, your code should be safe if the feature is ever really removed.
However, it probably won't be -- it may be removed from the standards, but I'll bet browsers will continue to support it for many years. So if you really need synchronous AJAX for some reason, you can use async: false
and just ignore the warnings. But there are good reasons why synchronous AJAX is considered poor style, so you should probably try to find a way to avoid it. And the people who wrote Flash applications probably never thought it would go away, either, but it's in the process of being phased out now.
Notice that the Fetch
API that's replacing XMLHttpRequest
does not even offer a synchronous option.
I know this is a resolved old topic, but I just answered a similar question, and though my answer could help someone else as it covers other solution options:
Click events work a little differently on touch enabled devices. There is no mouse, so technically there is no click. According to this article - http://www.quirksmode.org/blog/archives/2010/09/click_event_del.html - due to memory limitations, click events are only emulated and dispatched from anchor and input elements. Any other element could use touch events, or have click events manually initialized by adding a handler to the raw html element, for example, to force click events on list items:
$('li').each(function(){
this.onclick = function() {}
});
Now click will be triggered by li, therefore can be listened by jQuery.
On your case, you could just change the listener to the anchor element as very well put by @mason81, or use a touch event on the li:
$('.menu').on('touchstart', '.publications', function(){
$('#filter_wrapper').show();
});
Here is a fiddle with a few experiments - http://jsbin.com/ukalah/9/edit
You can either use
<h:outputText value="#{param['id']}" />
or
<h:outputText value="#{request.getParameter('id')}" />
However if you want to pass the parameters to your backing beans, using f:viewParam
is probably what you want. "A view parameter is a mapping between a query string parameter and a model value."
<f:viewParam name="id" value="#{blog.entryId}"/>
This will set the id param of the GET parameter to the blog bean's entryId
field. See http://java.dzone.com/articles/bookmarkability-jsf-2 for the details.
Using Newtonsoft.Json: In your Global.asax Application_Start method add this line:
GlobalConfiguration.Configuration.Formatters.JsonFormatter.SerializerSettings.ReferenceLoopHandling = Newtonsoft.Json.ReferenceLoopHandling.Ignore;
To find the sessions, as a DBA use
select sid,serial# from v$session where username = '<your_schema>'
If you want to be sure only to get the sessions that use SQL Developer, you can add and program = 'SQL Developer'
. If you only want to kill sessions belonging to a specific developer, you can add a restriction on os_user
Then kill them with
alter system kill session '<sid>,<serial#>'
(e.g.
alter system kill session '39,1232'
)
A query that produces ready-built kill-statements could be
select 'alter system kill session ''' || sid || ',' || serial# || ''';' from v$session where username = '<your_schema>'
This will return one kill statement per session for that user - something like:
alter system kill session '375,64855';
alter system kill session '346,53146';
Assuming you really mean easiest and are not necessarily looking for a way to do this programmatically, you can do this:
Add, if not already there, a row of "column Musicians" to the spreadsheet. That is, if you have data in columns such as:
Rory Gallagher Guitar
Gerry McAvoy Bass
Rod de'Ath Drums
Lou Martin Keyboards
Donkey Kong Sioux Self-Appointed Semi-official Stomper
Note: you might want to add "Musician" and "Instrument" in row 0 (you might have to insert a row there)
Save the file as a CSV file.
Copy the contents of the CSV file to the clipboard
Verify that the "First row is column names" checkbox is checked
Paste the CSV data into the content area
Mash the "Convert CSV to JSON" button
With the data shown above, you will now have:
[
{
"MUSICIAN":"Rory Gallagher",
"INSTRUMENT":"Guitar"
},
{
"MUSICIAN":"Gerry McAvoy",
"INSTRUMENT":"Bass"
},
{
"MUSICIAN":"Rod D'Ath",
"INSTRUMENT":"Drums"
},
{
"MUSICIAN":"Lou Martin",
"INSTRUMENT":"Keyboards"
}
{
"MUSICIAN":"Donkey Kong Sioux",
"INSTRUMENT":"Self-Appointed Semi-Official Stomper"
}
]
With this simple/minimalistic data, it's probably not required, but with large sets of data, it can save you time and headache in the proverbial long run by checking this data for aberrations and abnormalcy.
Go here: http://jsonlint.com/
Paste the JSON into the content area
Pres the "Validate" button.
If the JSON is good, you will see a "Valid JSON" remark in the Results section below; if not, it will tell you where the problem[s] lie so that you can fix it/them.
You can use format
:
library(zoo)
x <- as.yearmon(Sys.time())
format(x,"%b")
[1] "Mar"
format(x,"%Y")
[1] "2012"
//add BOM to fix UTF-8 in Excel
fputs($fp, $bom =( chr(0xEF) . chr(0xBB) . chr(0xBF) ));
I got this line from Cool
they're not really ordered, but you can do:
var first;
for (var i in obj) {
if (obj.hasOwnProperty(i) && typeof(i) !== 'function') {
first = obj[i];
break;
}
}
the .hasOwnProperty()
is important to ignore prototyped objects.
This question can be solved in a number of ways, but really, knowing the stacking rules allows you to find the best answer that works for you.
The <html>
element is your only stacking context, so just follow the stacking rules inside a stacking context and you will see that elements are stacked in this order
- The stacking context’s root element (the
<html>
element in this case)- Positioned elements (and their children) with negative z-index values (higher values are stacked in front of lower values; elements with the same value are stacked according to appearance in the HTML)
- Non-positioned elements (ordered by appearance in the HTML)
- Positioned elements (and their children) with a z-index value of auto (ordered by appearance in the HTML)
- Positioned elements (and their children) with positive z-index values (higher values are stacked in front of lower values; elements with the same value are stacked according to appearance in the HTML)
So you can
#under
positioned -ve z-index appear behind non-positioned #over
element#over
to relative
so that rule 5 applies to it Developers should know the following before trying to change the stacking order of elements.
<html>
element is the root element and is the first stacking contextThe Stacking order and stacking context rules below are from this link
<html>
element)The order of elements:
<html>
element is the only stacking context by default, but any element can be a root element for a stacking context, see rules above)
Define what GetData is. At the moment it is not defined.
Function getData(currentWorksheet as Worksheet, dataStartRow as Integer, dataEndRow as Integer, DataStartCol as Integer, dataEndCol as Integer) as variant
Private Sub Main()
Dim value = getValue()
'do something with value
End Sub
Private Function getValue() As Integer
Return 3
End Function
As many here have stated, you could use std::sort to sort, but what is going to happen when you, for instance, want to sort from z-a? This code may be useful
bool cmp(string a, string b)
{
if(a.compare(b) > 0)
return true;
else
return false;
}
int main()
{
string words[] = {"this", "a", "test", "is"};
int length = sizeof(words) / sizeof(string);
sort(words, words + length, cmp);
for(int i = 0; i < length; i++)
cout << words[i] << " ";
cout << endl;
// output will be: this test is a
}
If you want to reverse the order of sorting just modify the sign in the cmp function.
Hope this is helpful :)
Cheers!!!
"FetchType.LAZY
" will only fire for primary table. If in your code you call any other method that has a parent table dependency then it will fire query to get that table information. (FIRES MULTIPLE SELECT)
"FetchType.EAGER
" will create join of all table including relevant parent tables directly. (USES JOIN
)
When to Use:
Suppose you compulsorily need to use dependant parent table informartion then choose FetchType.EAGER
.
If you only need information for certain records then use FetchType.LAZY
.
Remember, FetchType.LAZY
needs an active db session factory at the place in your code where if you choose to retrieve parent table information.
E.g. for LAZY
:
.. Place fetched from db from your dao loayer
.. only place table information retrieved
.. some code
.. getCity() method called... Here db request will be fired to get city table info
No, you can't!
However, having bumped into that issue should make you rethink on how you organize your code.
Before ES6 modules, we had CommonJS modules which used the require() syntax. These modules were "dynamic", meaning that we could import new modules based on conditions in our code. - source: https://bitsofco.de/what-is-tree-shaking/
I guess one of the reasons they dropped that support on ES6 onward is the fact that compiling it would be very difficult or impossible.
For MySQL 5.7. These are the below steps:
Stop your MySQL server completely. This can be done by accessing the Services window inside Windows XP and Windows Server 2003, where you can stop the MySQL service.
Open your MS-DOS command prompt using "cmd" inside the Run window. Inside it navigate to your MySQL bin folder, such as C:\MySQL\bin using the cd command.
Execute the following command in the command prompt: mysqld.exe -u root --skip-grant-tables
Leave the current MS-DOS command prompt as it is, and open a new MS-DOS command prompt window.
Navigate to your MySQL bin folder, such as C:\MySQL\bin using the cd command.
Enter mysql and press enter.
You should now have the MySQL command prompt working. Type use mysql; so that we switch to the "mysql" database.
Execute the following command to update the password:
update user set authentication_string=password('1111') where user='root';
When you need to test if some variable is odd, you should first test if it is integer. Also, notice that when you calculate remainder on negative number, the result will be negative (-3 % 2 === -1
).
function isOdd(value) {
return typeof value === "number" && // value should be a number
isFinite(value) && // value should be finite
Math.floor(value) === value && // value should be integer
value % 2 !== 0; // value should not be even
}
If Number.isInteger is available, you may also simplify this code to:
function isOdd(value) {
return Number.isInteger(value) // value should be integer
value % 2 !== 0; // value should not be even
}
Note: here, we test value % 2 !== 0
instead of value % 2 === 1
is because of -3 % 2 === -1
. If you don't want -1
pass this test, you may need to change this line.
Here are some test cases:
isOdd(); // false
isOdd("string"); // false
isOdd(Infinity); // false
isOdd(NaN); // false
isOdd(0); // false
isOdd(1.1); // false
isOdd("1"); // false
isOdd(1); // true
isOdd(-1); // true
I didn't use JSP but I had similar error when I was setting response to return JSON object by calling PrintWriter's flush() method or return statement. Previous answer i.e wrapping return-statement into a try-block worked kind of: the error disappeared because return-statement makes method to ignore all code below try-catch, specifically in my case, line redirectStrategy.sendRedirect(request, response, destination_addr_string) which seem to modify the already committed response that causes the error. The simpler solution in my case was just to remove the line and let client app to take care of the redirection.
Strings are iterable (just like a list).
I'm interpreting that you really want something like:
fd = open(filename,'rU')
chars = []
for line in fd:
for c in line:
chars.append(c)
or
fd = open(filename, 'rU')
chars = []
for line in fd:
chars.extend(line)
or
chars = []
with open(filename, 'rU') as fd:
map(chars.extend, fd)
chars would contain all of the characters in the file.
There is better way. I'm using it in pages where I'm using kendo angularJS directives and grids has'nt IDs...
change: function (e) {
var selectedDataItem = e != null ? e.sender.dataItem(e.sender.select()) : null;
}
io.in('room1').sockets.sockets.forEach((socket,key)=>{
console.log(socket);
})
all socket instance in room1
All C++ compilers have one serious performance problem to deal with. Compiling C++ code is a long, slow process.
Compiling headers included on top of C++ files is a very long, slow process. Compiling the huge header structures that form part of Windows API and other large API libraries is a very, very long, slow process. To have to do it over, and over, and over for every single Cpp source file is a death knell.
This is not unique to Windows but an old problem faced by all compilers that have to compile against a large API like Windows.
The Microsoft compiler can ameliorate this problem with a simple trick called precompiled headers. The trick is pretty slick: although every CPP file can potentially and legally give a sligthly different meaning to the chain of header files included on top of each Cpp file (by things like having different macros #define'd in advance of the includes, or by including the headers in different order), that is most often not the case. Most of the time, we have dozens or hundreds of included files, but they all are intended to have the same meaning for all the Cpp files being compiled in your application.
The compiler can make huge time savings if it doesn't have to start to compile every Cpp file plus its dozens of includes literally from scratch every time.
The trick consists of designating a special header file as the starting point of all compilation chains, the so called 'precompiled header' file, which is commonly a file named stdafx.h simply for historical reasons.
Simply list all your big huge headers for your APIs in your stdafx.h file, in the appropriate order, and then start each of your CPP files at the very top with an #include "stdafx.h"
, before any meaningful content (just about the only thing allowed before is comments).
Under those conditions, instead of starting from scratch, the compiler starts compiling from the already saved results of compiling everything in stdafx.h
.
I don't believe that this trick is unique to Microsoft compilers, nor do I think it was an original development.
For Microsoft compilers, the setting that controls the use of precompiled headers is controlled by a command line argument to the compiler: /Yu "stdafx.h"
. As you can imagine, the use of the stdafx.h
file name is simply a convention; you can change the name if you so wish.
In Visual Studio 2010, this setting is controlled from the GUI via Right-clicking on a CPP Project, selecting 'Properties' and navigating to "Configuration Properties\C/C++\Precompiled Headers". For other versions of Visual Studio, the location in the GUI will be different.
Note that if you disable precompiled headers (or run your project through a tool that doesn't support them), it doesn't make your program illegal; it simply means that your tool will compile everything from scratch every time.
If you are creating a library with no Windows dependencies, you can easily comment out or remove #include
s from the stdafx.h
file. There is no need to remove the file per se, but clearly you may do so as well, by disabling the precompile header setting above.
Like this:
import java.util.*;
Set<Integer> a = new HashSet<Integer>();
a.add( 1);
a.add( 2);
a.add( 3);
Or adding from an Array/ or multiple literals; wrap to a list, first.
Integer[] array = new Integer[]{ 1, 4, 5};
Set<Integer> b = new HashSet<Integer>();
b.addAll( Arrays.asList( b)); // from an array variable
b.addAll( Arrays.asList( 8, 9, 10)); // from literals
To get the intersection:
// copies all from A; then removes those not in B.
Set<Integer> r = new HashSet( a);
r.retainAll( b);
// and print; r.toString() implied.
System.out.println("A intersect B="+r);
Hope this answer helps. Vote for it!
Just an update to above answers :
If you want to have see changes in the click event, i.e. Color of your UIVIew shud change whenever user clicks the UIView then make changes as below...
class ClickableUIView: UIView {
override func touchesBegan(touches: Set<UITouch>, withEvent event: UIEvent?) {
if let touch = touches.first {
let currentPoint = touch.locationInView(self)
// do something with your currentPoint
}
self.backgroundColor = UIColor.magentaColor()//Color when UIView is clicked.
}
override func touchesMoved(touches: Set<UITouch>, withEvent event: UIEvent?) {
if let touch = touches.first {
let currentPoint = touch.locationInView(self)
// do something with your currentPoint
}
self.backgroundColor = UIColor.magentaColor()//Color when UIView is clicked.
}
override func touchesEnded(touches: Set<UITouch>, withEvent event: UIEvent?) {
if let touch = touches.first {
let currentPoint = touch.locationInView(self)
// do something with your currentPoint
}
self.backgroundColor = UIColor.whiteColor()//Color when UIView is not clicked.
}//class closes here
Also, call this Class from Storyboard & ViewController as:
@IBOutlet weak var panVerificationUIView:ClickableUIView!
The original code is from Sabry Suleiman.
Made it a bit prettier:
function is_session_started() {
if ( php_sapi_name() === 'cli' )
return false;
return version_compare( phpversion(), '5.4.0', '>=' )
? session_status() === PHP_SESSION_ACTIVE
: session_id() !== '';
}
First condition checks the Server API in use. If Command Line Interface is used, the function returns false.
Then we return the boolean result depending on the PHP version in use.
In ancient history you simply needed to check session_id()
. If it's an empty string, then session is not started. Otherwise it is.
Since 5.4 to at least the current 8.0 the norm is to check session_status()
. If it's not PHP_SESSION_ACTIVE
, then either the session isn't started yet (PHP_SESSION_NONE
) or sessions are not available altogether (PHP_SESSION_DISABLED
).
Look at https://stackoverflow.com/a/4726838/2963099
Turn off pre compiled headers:
Project Properties -> C++ -> Precompiled Headers
set Precompiled Header
to "Not Using Precompiled Header"
.
Try:
return $this->sendRequest($uri);
Since PHP is not a pure Object-Orieneted language, it interprets sendRequest()
as an attempt to invoke a globally defined function (just like nl2br()
for example), but since your function is part of a class ('InstagramController'), you need to use $this
to point the interpreter in the right direction.
If you want the table to still be 100% then set one of the columns to have a width:100%; That will extend that column to fill the extra space and allow the other columns to keep their auto width :)
You need to ensure that any code that modifies the HTTP headers is executed before the headers are sent. This includes statements like session_start()
. The headers will be sent automatically when any HTML is output.
Your problem here is that you're sending the HTML ouput at the top of your page before you've executed any PHP at all.
Move the session_start()
to the top of your document :
<?php session_start(); ?> <html> <head> <title>PHP SDK</title> </head> <body> <?php require_once 'src/facebook.php'; // more PHP code here.
The answers on this question are not only wrong, but dangerous. CTRL+ALT+SHIFT+B will not indent HTML but XML. Consider the following HTML code:
<span class="myClass"></span>
The function 'Notepad++ -> Plugins -> XmlTools -> Pretty print (Xml only with line breaks)' (CTRL+ALT+SHIFT+B) will transform this to:
<span class="myClass"/>
which will not be displayed correctly anymore by your browser! I strongly advice against using this function to indent HTML.
Instead use the plugin Tidy2. This will indent the HTML correctly without bad side-effects (but it will also create <html>, <head>, <body>, ...
elements around your code, if these are not there).
I had the same problem and I tried everything with no result,, What fixed the problem for me was changing the order of the library paths in the PATH variable. I had cygwin as well as some other compilers so there was probably some sort of collision between them. What I did was putting the C:\MinGW\bin; path first before all other paths and it fixed the problem for me!
We may need more information. Here is what I did to reproduce on SQL Server 2008:
CREATE DATABASE [Test] ON PRIMARY
(
NAME = N'Test'
, FILENAME = N'...Test.mdf'
, SIZE = 3072KB
, FILEGROWTH = 1024KB
)
LOG ON
(
NAME = N'Test_log'
, FILENAME = N'...Test_log.ldf'
, SIZE = 1024KB
, FILEGROWTH = 10%
)
COLLATE SQL_Latin1_General_CP850_BIN2
GO
SET ANSI_NULLS ON
GO
SET QUOTED_IDENTIFIER ON
GO
SET ANSI_PADDING ON
GO
CREATE TABLE [dbo].[MyTable]
(
[SomeCol] [varchar](50) NULL
) ON [PRIMARY]
GO
Insert MyTable( SomeCol )
Select '±' Collate SQL_Latin1_General_CP1_CI_AS
GO
Select SomeCol, SomeCol Collate SQL_Latin1_General_CP1_CI_AS
From MyTable
Results show the original character. Declaring collation in the query should return the proper character from SQL Server's perspective however it may be the case that the presentation layer is then converting to something yet different like UTF-8.
Was trying to do this with an access database and found I needed to use a.* right after the delete.
DELETE a.*
FROM TableA AS a
INNER JOIN TableB AS b
ON a.BId = b.BId
WHERE [filter condition]
PDF2SVG version 6.0 from PDFTron does a reasonable job. It produces OpenType (.otf
) fonts by default. Use --preserve_fontnames
to preserve "the font/font-family naming scheme as obtained from the source file."
PDF2SVG is a commercial product, but you can download a free demo executable (which includes watermarks on the SVG output but doesn't otherwise restrict usage). There may be other PDFTron products that also extract fonts, but I only recently discovered PDF2SVG myself.
There is rabbitmqadmin which is nice to work from console.
If you ssh/log into server where you have rabbit installed, you can download it from:
http://{server}:15672/cli/rabbitmqadmin
and save it into /usr/local/bin/rabbitmqadmin
Then you can run
rabbitmqadmin -u {user} -p {password} -V {vhost} delete queue name={name}
Usually it requires sudo.
If you want to avoid typing your user name and password, you can use config
rabbitmqadmin -c /var/lib/rabbitmq/.rabbitmqadmin.conf -V {vhost} delete queue name={name}
All that under assumption that you have file ** /var/lib/rabbitmq/.rabbitmqadmin.conf** and have bare minumum
hostname = localhost
port = 15672
username = {user}
password = {password}
EDIT: As of comment from @user299709, it might be helpful to point out that user must be tagged as 'administrator' in rabbit. (https://www.rabbitmq.com/management.html)
This should work:
string s = "9quali52ty3";
byte[] ASCIIValues = Encoding.ASCII.GetBytes(s);
foreach(byte b in ASCIIValues) {
Console.WriteLine(b);
}
It is terrible, but you can try to use
select
SUBSTRING(Table1.Col1,0,PATINDEX('%|%=',Table1.Col1)) as myString
from
Table1
This code is probably not 100% right though. need to be adjusted
Even if that's a 7 years old question, people new to R should consider using the data.table, package.
A data.table is a data.frame so all you can do for/to a data.frame you can also do. But many think are ORDERS of magnitude faster with data.table.
vec <- 1:10
library(data.table)
DT <- data.table(start=c(1,3,5,7), end=c(2,6,7,9))
DT[,new:=apply(DT,1,function(row) mean(vec[ row[1] : row[2] ] ))]
The difference is in the error the commands generate. With require
, the file you want to use is really required and thus generates an E_ERROR
if it is not found.
require()
is identical toinclude()
except upon failure it will also produce a fatalE_ERROR
level error.
include
only generates an E_WARNING
error if it fails which is more or less silent.
So use it if the file is required to make the remaining code work and you want the script to fail the file is not available.
For *_once()
:
include_once()
may be used in cases where the same file might be included and evaluated more than once during a particular execution of a script, so in this case it may help avoid problems such as function redefinitions, variable value reassignments, etc.
Same applies to require_once()
of course.
Reference: require()
, include_once()
This worked for me:
dialogRef.updateSize("300px", "300px");
We all know that PHP save errors in php_errors.log file.
But, that file contains a lot of data.
If we want to log our application data, we need to save it to a custom location.
We can use two parameters in the error_log function to achieve this.
http://php.net/manual/en/function.error-log.php
We can do it using:
error_log(print_r($v, TRUE), 3, '/var/tmp/errors.log');
Where,
print_r($v, TRUE) :
logs $v (array/string/object) to log file.
3
: Put log message to custom log file specified in the third parameter.
'/var/tmp/errors.log'
: Custom log file (This path is for Linux, we can specify other depending upon OS).
OR, you can use file_put_contents()
file_put_contents('/var/tmp/e.log', print_r($v, true), FILE_APPEND);
Where:
'/var/tmp/errors.log':
Custom log file (This path is for Linux, we can specify other depending upon OS).
print_r($v, TRUE) :
logs $v (array/string/object) to log file.
FILE_APPEND: Constant parameter specifying whether to append to the file if it exists, if file does not exist, new file will be created.
For those coming from Ionic or Cordova, you can try the following:
Disconnect your ios devices from the computer before ios cordova build ios --release
(seems to change the targeted device for xcode signing).
Either one should work OK. In fact, System.Threading.Timer uses System.Timers.Timer internally.
Having said that, it's easy to misuse System.Timers.Timer. If you don't store the Timer object in a variable somewhere, then it is liable to be garbage collected. If that happens, your timer will no longer fire. Call the Dispose method to stop the timer, or use the System.Threading.Timer class, which is a slightly nicer wrapper.
What problems have you seen so far?
First, if item value has double quote character ("), replace with 2 double quote character ("")
item = item.ToString().Replace("""", """""")
Finally, wrap item value:
ON LEFT: With double quote character (")
ON RIGHT: With double quote character (") and comma character (,)
csv += """" & item.ToString() & ""","
Something like this
<html>
<body style="height:100%; width:100%">
<div id="header" style="position:absolute; top:0px; left:0px; height:200px; right:0px;overflow:hidden;">
</div>
<div id="content" style="position:absolute; top:200px; bottom:200px; left:0px; right:0px; overflow:auto;">
</div>
<div id="footer" style="position:absolute; bottom:0px; height:200px; left:0px; right:0px; overflow:hidden;">
</div>
</body>
</html>
You can hide the "Watch Later" Button by using "Youtube-nocookie" (this will not hide the share Button)
Adding controls=0
will also remove the video control bar at the bottom of the screen and using modestbranding=1
will remove the youtube logo at bottom right of the screen
However using them both doesn't works as expected (it only hides the video control bar)
<iframe width="100%" height="100%" src="https://www.youtube-nocookie.com/embed/fNb-DTEb43M?controls=0" frameborder="0" allowfullscreen></iframe>
boolean whitespaceSearchRegExp(String input) {
return java.util.regex.Pattern.compile("\\s").matcher(input).find();
}
According to Microsoft's archived Internet Explorer Dev Center, document.all
is deprecated in IE 11 and Edge!
This works in all browsers (IE11, Firefox, Microsoft Edge, Chrome and Chrome Mobile) My documents are in multiple select elements. The browsers seem to have issues when you try to do it too fast... So I used a timeout.
<select class="document">
<option val="word.docx">some word document</option>
</select>
//user clicks a download button to download all selected documents
$('#downloadDocumentsButton').click(function () {
var interval = 1000;
//select elements have class name of "document"
$('.document').each(function (index, element) {
var doc = $(element).val();
if (doc) {
setTimeout(function () {
window.location = doc;
}, interval * (index + 1));
}
});
});
This solution uses promises:
function downloadDocs(docs) {
docs[0].then(function (result) {
if (result.web) {
window.open(result.doc);
}
else {
window.location = result.doc;
}
if (docs.length > 1) {
setTimeout(function () { return downloadDocs(docs.slice(1)); }, 2000);
}
});
}
$('#downloadDocumentsButton').click(function () {
var files = [];
$('.document').each(function (index, element) {
var doc = $(element).val();
var ext = doc.split('.')[doc.split('.').length - 1];
if (doc && $.inArray(ext, docTypes) > -1) {
files.unshift(Promise.resolve({ doc: doc, web: false }));
}
else if (doc && ($.inArray(ext, webTypes) > -1 || ext.includes('?'))) {
files.push(Promise.resolve({ doc: doc, web: true }));
}
});
downloadDocs(files);
});
You can implement a filter method yourself that meets your needs, here is how:
function myfilter(array, test){
var passedTest =[];
for (var i = 0; i < array.length; i++) {
if(test( array[i]))
passedTest.push(array[i]);
}
return passedTest;
}
var passedHomes = myfilter(homes,function(currentHome){
return ((currentHome.price <= 1000 )&& (currentHome.sqft >= 500 )&&(currentHome.num_of_beds >=2 )&&(currentHome.num_of_baths >= 2.5));
});
Hope, it helps!
I think you want to cast your dt
to a date
and fix the format of your date literal:
SELECT *
FROM table
WHERE dt::date = '2011-01-01' -- This should be ISO-8601 format, YYYY-MM-DD
Or the standard version:
SELECT *
FROM table
WHERE CAST(dt AS DATE) = '2011-01-01' -- This should be ISO-8601 format, YYYY-MM-DD
The extract
function doesn't understand "date" and it returns a number.
You can use following formulas.
For Excel 2007 or later:
=IFERROR(VLOOKUP(D3,List!A:C,3,FALSE),"No Match")
For Excel 2003:
=IF(ISERROR(MATCH(D3,List!A:A, 0)), "No Match", VLOOKUP(D3,List!A:C,3,FALSE))
Note, that
List!A:C
in VLOOKUP
and returns value from column ? 3
VLOOKUP
equals to FALSE
, in that case VLOOKUP
will only find an exact match, and the values in the first column of List!A:C
do not need to be sorted (opposite to case when you're using TRUE
).I think all the answers do not really point the problem because all of them work in specific scenarios. But if you need to cover all the cases follow the points bellow:
Depending on where you need the status bar light style you should always have in mind these 3 points:
1)If you need the status bar at the launch screen or in other places, where you can't control it (not in view controllers, but rather some system controlled elements/moments like Launch Screen)
You go to your project settings
2) if you have a controller inside a navigation controller You can change it in the interface builder as follows:
a) Select the navigation bar of your navigation controller
b) Then set the style of the navigation bar to "Black", because this means you'll have a "black" -> dark background under your status bar, so it will set the status bar to white
Or do it in code as follows
navigationController?.navigationBar.barStyle = UIBarStyle.Black
3) If you have the controller alone that needs to have it's own status bar style and it's not embedded in some container structure as a UINavigationController
Set the status bar style in code for the controller:
Edit: The original link I answered with is now invalid.The newer URL would be https://developers.google.com/web/tools/chrome-devtools/javascript/add-breakpoints#exceptions as of 2016-11-11.
I realize this question has an answer, but it's no longer accurate. Use the link above ^
(link replaced by edited above) - you can now set it to break on all exceptions or just unhandled ones. (Note that you need to be in the Sources tab to see the button.)
Chrome's also added some other really useful breakpoint capabilities now, such as breaking on DOM changes or network events.
Normally I wouldn't re-answer a question, but I had the same question myself, and I found this now-wrong answer, so I figured I'd put this information in here for people who came along later in searching. :)
You want to do this:
git add -u
git reset HEAD path/to/file
git commit
Be sure and do this from the top level of the repo; add -u
adds changes in the current directory (recursively).
The key line tells git to reset the version of the given path in the index (the staging area for the commit) to the version from HEAD (the currently checked-out commit).
And advance warning of a gotcha for others reading this: add -u
stages all modifications, but doesn't add untracked files. This is the same as what commit -a
does. If you want to add untracked files too, use add .
to recursively add everything.
Without having a href
, the click will reload the current page, so you need something like this:
<a href="#" onclick="f1()">jhhghj</a>
Or prevent the scroll like this:
<a href="#" onclick="f1(); return false;">jhhghj</a>
Or return false
in your f1
function and:
<a href="#" onclick="return f1();">jhhghj</a>
....or, the unobtrusive way:
<a href="#" id="abc">jhg</a>
<a href="#" id="myLink">jhhghj</a>
<script type="text/javascript">
document.getElementById("myLink").onclick = function() {
document.getElementById("abc").href="xyz.php";
return false;
};
</script>
I have solved a similar problem by first importing the text into an excel spreadsheet, then using the Substitute function to replace both the single and double quotes as required by SQL Server, eg. SUBSTITUTE(SUBSTITUTE(A1, "'", "''"), """", "\""")
In my case, I had many rows (each a line of data to be cleaned then inserted) and had the spreadsheet automatically generate insert queries for the text once the substitution had been done eg. ="INSERT INTO [dbo].[tablename] ([textcolumn]) VALUES ('" & SUBSTITUTE(SUBSTITUTE(A1, "'", "''"), """", "\""") & "')"
I hope that helps.
https://golang.org/ref/spec#Numeric_types for physical type limits.
The max values are defined in the math package so in your case: math.MaxUint32
Watch out as there is no overflow - incrementing past max causes wraparound.
I have tried to use AjaxableResponseMixin in my project, but had ended up with the following error message:
ImproperlyConfigured: No URL to redirect to. Either provide a url or define a get_absolute_url method on the Model.
That is because the CreateView will return a redirect response instead of returning a HttpResponse when you to send JSON request to the browser. So I have made some changes to the AjaxableResponseMixin
. If the request is an ajax request, it will not call the super.form_valid
method, just call the form.save()
directly.
from django.http import JsonResponse
from django import forms
from django.db import models
class AjaxableResponseMixin(object):
success_return_code = 1
error_return_code = 0
"""
Mixin to add AJAX support to a form.
Must be used with an object-based FormView (e.g. CreateView)
"""
def form_invalid(self, form):
response = super(AjaxableResponseMixin, self).form_invalid(form)
if self.request.is_ajax():
form.errors.update({'result': self.error_return_code})
return JsonResponse(form.errors, status=400)
else:
return response
def form_valid(self, form):
# We make sure to call the parent's form_valid() method because
# it might do some processing (in the case of CreateView, it will
# call form.save() for example).
if self.request.is_ajax():
self.object = form.save()
data = {
'result': self.success_return_code
}
return JsonResponse(data)
else:
response = super(AjaxableResponseMixin, self).form_valid(form)
return response
class Product(models.Model):
name = models.CharField('product name', max_length=255)
class ProductAddForm(forms.ModelForm):
'''
Product add form
'''
class Meta:
model = Product
exclude = ['id']
class PriceUnitAddView(AjaxableResponseMixin, CreateView):
'''
Product add view
'''
model = Product
form_class = ProductAddForm
This is the main difference between use git reset --hard and git reset --soft:
--soft
Does not touch the index file or the working tree at all (but resets the head to , just like all modes do). This leaves all your changed files "Changes to be committed", as git status would put it.
--hard
Resets the index and working tree. Any changes to tracked files in the working tree since are discarded.
RewriteCond %{REQUEST_URI} foobar
RewriteRule .* index.php
I was also getting the same problem Insufficient Storage Available
on my device, but I restarted my device, and it worked fine!
PS.:
For this, set Storage Location
with the following command
adb shell pm set-Install-Location 2 // 2 for external storage ([SD card][1])
adb shell pm set-Install-Location 1 // 2 for internal storage
adb shell pm set-Install-Location 0 // for auto
before for loop :
$data = array();
then in your loop:
$data[] = array($catagory => $question);
You may use Request.Cookies collection to read the cookies.
if(Request.Cookies["key"]!=null)
{
var value=Request.Cookies["key"].Value;
}
The simplest in my opinion is just this:
it = iter([1,2,3,4,5,6])
for x, y in zip(it, it):
print x, y
Out: 1 2
3 4
5 6
No extra imports or anything. And very elegant, in my opinion.
Definitely it is a concern. Dockerfiles are commonly checked in to repositories and shared with other people. An alternative is to provide any credentials (usernames, passwords, tokens, anything sensitive) as environment variables at runtime. This is possible via the -e
argument (for individual vars on the CLI) or --env-file
argument (for multiple variables in a file) to docker run
. Read this for using environmental with docker-compose.
Using --env-file
is definitely a safer option since this protects against the secrets showing up in ps
or in logs if one uses set -x
.
However, env vars are not particularly secure either. They are visible via docker inspect
, and hence they are available to any user that can run docker
commands. (Of course, any user that has access to docker
on the host also has root anyway.)
My preferred pattern is to use a wrapper script as the ENTRYPOINT
or CMD
. The wrapper script can first import secrets from an outside location in to the container at run time, then execute the application, providing the secrets. The exact mechanics of this vary based on your run time environment. In AWS, you can use a combination of IAM roles, the Key Management Service, and S3 to store encrypted secrets in an S3 bucket. Something like HashiCorp Vault or credstash is another option.
AFAIK there is no optimal pattern for using sensitive data as part of the build process. In fact, I have an SO question on this topic. You can use docker-squash to remove layers from an image. But there's no native functionality in Docker for this purpose.
You may find shykes comments on config in containers useful.
try
{
..
..
..
}
catch(Exception ex)
{
..
..
..
}
the Exception ex means all the exceptions.
You could always use something like mktime to create a known time (midnight, last night) and use difftime to get a double-precision time difference between the two. For a platform-independant solution, unless you go digging into the details of your libraries, you're not going to do much better than that. According to the C spec, the definition of time_t is implementation-defined (meaning that each implementation of the library can define it however they like, as long as library functions with use it behave according to the spec.)
That being said, the size of time_t on my linux machine is 8 bytes, which suggests a long int or a double. So I did:
int main()
{
for(;;)
{
printf ("%ld\n", time(NULL));
printf ("%f\n", time(NULL));
sleep(1);
}
return 0;
}
The time given by the %ld increased by one each step and the float printed 0.000 each time. If you're hell-bent on using printf to display time_ts, your best bet is to try your own such experiment and see how it work out on your platform and with your compiler.
The standard library includes the ordered and the unordered map (std::map
and std::unordered_map
) containers. In an ordered map the elements are sorted by the key, insert and access is in O(log n). Usually the standard library internally uses red black trees for ordered maps. But this is just an implementation detail. In an unordered map insert and access is in O(1). It is just another name for a hashtable.
An example with (ordered) std::map
:
#include <map>
#include <iostream>
#include <cassert>
int main(int argc, char **argv)
{
std::map<std::string, int> m;
m["hello"] = 23;
// check if key is present
if (m.find("world") != m.end())
std::cout << "map contains key world!\n";
// retrieve
std::cout << m["hello"] << '\n';
std::map<std::string, int>::iterator i = m.find("hello");
assert(i != m.end());
std::cout << "Key: " << i->first << " Value: " << i->second << '\n';
return 0;
}
Output:
23 Key: hello Value: 23
If you need ordering in your container and are fine with the O(log n) runtime then just use std::map
.
Otherwise, if you really need a hash-table (O(1) insert/access), check out std::unordered_map
, which has a similar to std::map
API (e.g. in the above example you just have to search and replace map
with unordered_map
).
The unordered_map
container was introduced with the C++11 standard revision. Thus, depending on your compiler, you have to enable C++11 features (e.g. when using GCC 4.8 you have to add -std=c++11
to the CXXFLAGS).
Even before the C++11 release GCC supported unordered_map
- in the namespace std::tr1
. Thus, for old GCC compilers you can try to use it like this:
#include <tr1/unordered_map>
std::tr1::unordered_map<std::string, int> m;
It is also part of boost, i.e. you can use the corresponding boost-header for better portability.
Most likely the problem lies outside the code you are showing us here. You are trying to update an object that is not associated with the current session. If it is not the Invoice, then maybe it is an InvoiceItem that has already been persisted, obtained from the db, kept alive in some sort of session and then you try to persist it on a new session. This is not possible. As a general rule, never keep your persisted objects alive across sessions.
The solution will ie in obtaining the whole object graph from the same session you are trying to persist it with. In a web environment this would mean:
If you keep having issues post some of the code that is calling your service.
Passing data between FirstViewController to SecondViewController as below
For example:
FirstViewController String value as
StrFirstValue = @"first";
So we can pass this value in the second class using the below steps:
We need to create a string object in the SecondViewController.h file
NSString *strValue;
Need to declare a property as the below declaration in the .h file
@property (strong, nonatomic) NSString *strSecondValue;
Need synthesize that value in the FirstViewController.m file below the header declaration
@synthesize strValue;
And in file FirstViewController.h:
@property (strong, nonatomic) NSString *strValue;
In FirstViewController, from which method we navigate to the second view, please write the below code in that method.
SecondViewController *secondView= [[SecondViewController alloc]
initWithNibName:@"SecondViewController " bundle:[NSBundle MainBundle]];
[secondView setStrSecondValue:StrFirstValue];
[self.navigationController pushViewController:secondView animated:YES ];
The accepted answer does not work in Jupyter (at least when using some libraries).
The Javascript solutions here only hide warnings that are already showing but not warnings that would be shown in the future.
To hide/unhide warnings in Jupyter and JupyterLab I wrote the following script that essentially toggles css to hide/unhide warnings.
%%javascript
(function(on) {
const e=$( "<a>Setup failed</a>" );
const ns="js_jupyter_suppress_warnings";
var cssrules=$("#"+ns);
if(!cssrules.length) cssrules = $("<style id='"+ns+"' type='text/css'>div.output_stderr { } </style>").appendTo("head");
e.click(function() {
var s='Showing';
cssrules.empty()
if(on) {
s='Hiding';
cssrules.append("div.output_stderr, div[data-mime-type*='.stderr'] { display:none; }");
}
e.text(s+' warnings (click to toggle)');
on=!on;
}).click();
$(element).append(e);
})(true);
Add your start class in your pom:
<properties>
<!-- The main class to start by executing java -jar -->
<start-class>com.mycorp.starter.HelloWorldApplication</start-class>
</properties>
or
<build>
<plugins>
<plugin>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-maven-plugin</artifactId>
<configuration>
<mainClass>com.mycorp.starter.HelloWorldApplication</mainClass>
</configuration>
</plugin>
</plugins>
</build>
If you want to stop process you can kill it manually from task manager onother side if you want to stop running query in DBMS you can stop as given here for ms sqlserver T-SQL STOP or ABORT command in SQL Server Hope it helps you
Don't use absolute paths, make them relative to the 'resources' directory in your project. Quick and dirty code that displays the contents of MyTest.txt from the directory 'resources'.
@Test
public void testDefaultResource() {
// can we see default resources
BufferedInputStream result = (BufferedInputStream)
Config.class.getClassLoader().getResourceAsStream("MyTest.txt");
byte [] b = new byte[256];
int val = 0;
String txt = null;
do {
try {
val = result.read(b);
if (val > 0) {
txt += new String(b, 0, val);
}
} catch (IOException e) {
e.printStackTrace();
}
} while (val > -1);
System.out.println(txt);
}
How can I declare a class type, so that I ensure the object is a constructor of a general class?
A Constructor type could be defined as:
type AConstructorTypeOf<T> = new (...args:any[]) => T;
class A { ... }
function factory(Ctor: AConstructorTypeOf<A>){
return new Ctor();
}
const aInstance = factory(A);
Don't know how you want to format it, but you can do:
print("Created at %s:%s" % (t1.hour, t1.minute))
for example.
Here is a beautiful and minimalist way to go
(num > 1 && num < 5) ? first_case_method()
: System.out.println("testing case 1 to 5")
: (num > 5 && num < 7) ? System.out.println("testing case 5 to 7")
: (num > 7 && num < 8) ? System.out.println("testing case 7 to 8")
: (num > 8 && num < 9) ? System.out.println("testing case 8 to 9")
: ...
: System.out.println("default");
Your question is based on assumption that the code which may throw NullPointerException
is worse than the code which may not. This assumption is wrong. If you expect that your foobar
is never null due to the program logic, it's much better to use Optional.of(foobar)
as you will see a NullPointerException
which will indicate that your program has a bug. If you use Optional.ofNullable(foobar)
and the foobar
happens to be null
due to the bug, then your program will silently continue working incorrectly, which may be a bigger disaster. This way an error may occur much later and it would be much harder to understand at which point it went wrong.
Get at number:
window.getComputedStyle( *Element* , null).getPropertyValue( *CSS* );
Example:
window.getComputedStyle( document.body ,null).getPropertyValue('background-color');
window.getComputedStyle( document.body ,null).getPropertyValue('width');
~ document.body.clientWidth
In Chrome (Canary) I unchecked "Appspector" extension. That cleared the error.
You can always refer to resources in your application directly by their JNDI name as configured in the container, but if you do so, essentially you are wiring the container-specific name into your code. This has some disadvantages, for example, if you'll ever want to change the name later for some reason, you'll need to update all the references in all your applications, and then rebuild and redeploy them.
<resource-ref>
introduces another layer of indirection: you specify the name you want to use in the web.xml, and, depending on the container, provide a binding in a container-specific configuration file.
So here's what happens: let's say you want to lookup the java:comp/env/jdbc/primaryDB
name. The container finds that web.xml has a <resource-ref>
element for jdbc/primaryDB
, so it will look into the container-specific configuration, that contains something similar to the following:
<resource-ref>
<res-ref-name>jdbc/primaryDB</res-ref-name>
<jndi-name>jdbc/PrimaryDBInTheContainer</jndi-name>
</resource-ref>
Finally, it returns the object registered under the name of jdbc/PrimaryDBInTheContainer
.
The idea is that specifying resources in the web.xml has the advantage of separating the developer role from the deployer role. In other words, as a developer, you don't have to know what your required resources are actually called in production, and as the guy deploying the application, you will have a nice list of names to map to real resources.
Just simply add an empty dependenncy array in useEffect it will works as componentDidMount
.
useEffect(() => {
// Your code here
console.log("componentDidMount")
}, []);
<ul>
<li ng-repeat=interface in interfaces>
<img src='green-checkmark.png' ng-show="interface=='UP'" />
<img src='big-black-X.png' ng-show="interface=='DOWN'" />
</li>
</ul>
Ah yes. Welcome to Asynchronous execution.
Basically, pausing a script would cause the browser and page to become unresponsive for 3 seconds. This is horrible for web apps, and so isn't supported.
Instead, you have to think "event-based". Use setTimeout to call a function after a certain amount of time, which will continue to run the JavaScript on the page during that time.
My solution:
let isEmpty = (val) => {
let typeOfVal = typeof val;
switch(typeOfVal){
case 'object':
return (val.length == 0) || !Object.keys(val).length;
break;
case 'string':
let str = val.trim();
return str == '' || str == undefined;
break;
case 'number':
return val == '';
break;
default:
return val == '' || val == undefined;
}
};
console.log(isEmpty([1,2,4,5])); // false
console.log(isEmpty({id: 1, name: "Trung",age: 29})); // false
console.log(isEmpty('TrunvNV')); // false
console.log(isEmpty(8)); // false
console.log(isEmpty('')); // true
console.log(isEmpty(' ')); // true
console.log(isEmpty([])); // true
console.log(isEmpty({})); // true
Many description internet-wide don't mention that specifying Access-Control-Allow-Origin
is not enough. Here is a complete example that works for me:
<?php
if ($_SERVER['REQUEST_METHOD'] === 'OPTIONS') {
header('Access-Control-Allow-Origin: *');
header('Access-Control-Allow-Methods: POST, GET, DELETE, PUT, PATCH, OPTIONS');
header('Access-Control-Allow-Headers: token, Content-Type');
header('Access-Control-Max-Age: 1728000');
header('Content-Length: 0');
header('Content-Type: text/plain');
die();
}
header('Access-Control-Allow-Origin: *');
header('Content-Type: application/json');
$ret = [
'result' => 'OK',
];
print json_encode($ret);
Where R1, R2 are random uniform numbers:
NORMAL DISTRIBUTION, with SD of 1:
sqrt(-2*log(R1))*cos(2*pi*R2)
This is exact... no need to do all those slow loops!
Reference: dspguide.com/ch2/6.htm
I suggest reading the git man page to fully understand how ignore work, and in the future you'll thank me ;)
Relevant to your problem:
Two consecutive asterisks ("**") in patterns matched against full pathname may have special meaning:
A leading "**" followed by a slash means match in all directories. For example, "**/foo" matches file or directory "foo" anywhere, the same as pattern "foo". "**/foo/bar" matches file or directory "bar" anywhere that is directly under directory "foo".
A trailing "/**" matches everything inside. For example, "abc/**" matches all files inside directory "abc", relative to the location of the . gitignore file, with infinite depth.
A slash followed by two consecutive asterisks then a slash matches zero or more directories. For example, "a/**/b" matches "a/b", "a/x/b", "a/x/y/b" and so on.
Other consecutive asterisks are considered invalid.
The answer John Colby gives is the right answer. However if you are a dplyr
user there is also the answer sample_n
:
sample_n(df, 10)
randomly samples 10 rows from the dataframe. It calls sample.int
, so really is the same answer with less typing (and simplifies use in the context of magrittr since the dataframe is the first argument).
I prefer John T's solution, but if you want to go all code-golfy, your statement logically reduces to this:
//if key is down, toggle the boolean, else leave it alone.
flipVal = ((wParam==VK_F11) && !flipVal) || (!(wParam==VK_F11) && flipVal);
if(wParam==VK_F11) Break;
//if key is down, toggle the boolean, else leave it alone.
otherVal = ((wParam==VK_F12) && !otherVal) || (!(wParam==VK_F12) && otherVal);
if(wParam==VK_F12) Break;
generally this problem occurred when we have called a function which has not been define in the program file, so to sort out this problem check whether have you called such function which has not been define in the program file.
If you have a Unicode string, and you want to write this to a file, or other serialised form, you must first encode it into a particular representation that can be stored. There are several common Unicode encodings, such as UTF-16 (uses two bytes for most Unicode characters) or UTF-8 (1-4 bytes / codepoint depending on the character), etc. To convert that string into a particular encoding, you can use:
>>> s= u'£10'
>>> s.encode('utf8')
'\xc2\x9c10'
>>> s.encode('utf16')
'\xff\xfe\x9c\x001\x000\x00'
This raw string of bytes can be written to a file. However, note that when reading it back, you must know what encoding it is in and decode it using that same encoding.
When writing to files, you can get rid of this manual encode/decode process by using the codecs module. So, to open a file that encodes all Unicode strings into UTF-8, use:
import codecs
f = codecs.open('path/to/file.txt','w','utf8')
f.write(my_unicode_string) # Stored on disk as UTF-8
Do note that anything else that is using these files must understand what encoding the file is in if they want to read them. If you are the only one doing the reading/writing this isn't a problem, otherwise make sure that you write in a form understandable by whatever else uses the files.
In Python 3, this form of file access is the default, and the built-in open
function will take an encoding parameter and always translate to/from Unicode strings (the default string object in Python 3) for files opened in text mode.
Your regex pattern should have the g modifier:
var pattern = /[somepattern]+/g;
notice the g at the end. it tells the replacer to do a global replace.
Also you dont need to use the RegExp object you can construct your pattern as above. Example pattern:
var pattern = /[0-9a-zA-Z]+/g;
a pattern is always surrounded by / on either side - with modifiers after the final /, the g modifier being the global.
EDIT: Why does it matter if pattern is a variable? In your case it would function like this (notice that pattern is still a variable):
var pattern = /[0-9a-zA-Z]+/g;
repeater.replace(pattern, "1234abc");
But you would need to change your replace function to this:
this.markup = this.markup.replace(pattern, value);
(did not mean to make the comment)
Ok, it doesn't really depend on types in that way. I may have mis-understood the original question here so forgive me if that is the case. If you create serliazers.py then in there you create classes that have meta classes.
Class MyModelSerializer(serializers.ModelSerializer):
class Meta:
model = modelName
fields =('csv','of','fields')
Then when you get the data in the view class you can:
model_data - Model.objects.filter(...)
serializer = MyModelSerializer(model_data, many=True)
return Response({'data': serilaizer.data}, status=status.HTTP_200_OK)
That is pretty much what I have in a vareity of places and it returns nice JSON via the JSONRenderer.
As I said this is courtesy of the DjangoRestFramework so it's worth looking into that.
jPDFImages is not free but a commercial library which converts PDF pages to images in JPEG, TIFF or PNG format. The output image size is customizable.
Here is a complete method that only has one button, an 'ok', to close the UIAlert:
- (void) myAlert: (NSString*)errorMessage
{
UIAlertView *myAlert = [[UIAlertView alloc]
initWithTitle:errorMessage
message:@""
delegate:self
cancelButtonTitle:nil
otherButtonTitles:@"ok", nil];
myAlert.cancelButtonIndex = -1;
[myAlert setTag:1000];
[myAlert show];
}
Combine Kim's answer with os:
p=Path(os.getcwd())
os.chdir(p.parent)
To unpublish your app on the Google Play store:
ah homework...
So wait, you need to deduct the balance of items in stock from the total number of those items that have been ordered? I have to tell you that sounds a bit backwards. Generally I think people do it the other way round. Deduct the total number of items ordered from the balance.
If you really need to do that though... Assuming that ITEM is unique in stock_bal...
SELECT s.ITEM, SUM(m.QTY) - s.QTY AS result
FROM stock_bal s
INNER JOIN master_table m ON m.ITEM = s.ITEM
GROUP BY s.ITEM, s.QTY
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_my);
titolorecuperato = (TextView) findViewById(R.id.textView);
String stitolo = titolorecuperato.getText().toString();
Button btnHome = (Button) findViewById(R.id.button);
btnHome.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View view) {
}
});
same thing as Nic007 said before.
You do need to write code inside "onCreate" method. Sorry me too for the indent... (first comment here)
Check out DecimalFormat: http://docs.oracle.com/javase/6/docs/api/java/text/DecimalFormat.html
You'll do something like:
new DecimalFormat("$#.00").format(shippingCost);
Or since you're working with currency, you could see how NumberFormat.getCurrencyInstance()
works for you.
The best colors I've found --which aside from being so beautiful, are very easy to look at too and do not boil my eyes-- are the ones I've found listed in this GitHub repository: VSCode Snazzy
Very Easy Installation:
Copy the contents of snazzy.json into your VS Code "settings.json" file.
(In case you don't know how to open the "settings.json" file, first hit Ctrl+Shift+P and then write Preferences: open settings(JSON) and hit enter).
Notice: For those who have tried ColorTool and it works outside VSCode but not inside VSCode, you've made no mistakes in implementing it, that's just a decision of VSCode developers for the VSCode's terminal to be colored independently.
I believe, the 500ms run in the background, while the rest of the code continues to execute and empties the list.
Then after 500ms nothing happens, as no function-call is implemented in the after-callup (same as frame.after(500, function=None)
)
Don't forget that parseInt() only works for Integer values. To sort string values you need to swap this:
array.sort(function(a, b){
a = parseInt(a[attribute]);
b = parseInt(b[attribute]);
return a - b;
});
with this:
array.sort(function(a, b){
var alc = a[attribute].toLowerCase(),
blc = b[attribute].toLowerCase();
return alc > blc ? 1 : alc < blc ? -1 : 0;
});
I know this is question is really old, but I found an easy and simple jQuery solution in css-tricks. That's the one I'm using now.
$(function() {
$('a[href*=#]:not([href=#])').click(function() {
if (location.pathname.replace(/^\//,'') == this.pathname.replace(/^\//,'') && location.hostname == this.hostname) {
var target = $(this.hash);
target = target.length ? target : $('[name=' + this.hash.slice(1) +']');
if (target.length) {
$('html,body').animate({
scrollTop: target.offset().top
}, 1000);
return false;
}
}
});
});
Strings are hard work in C.
#include <stdio.h>
int main()
{
int i;
char buf[12];
for (i = 0; i < 100; i++) {
snprintf(buf, 12, "pre_%d_suff", i); // puts string into buffer
printf("%s\n", buf); // outputs so you can see it
}
}
The 12
is enough bytes to store the text "pre_"
, the text "_suff"
, a string of up to two characters ("99"
) and the NULL terminator that goes on the end of C string buffers.
This will tell you how to use snprintf
, but I suggest a good C book!
strlist =[{}]*10
strlist[0] = set()
strlist[0].add("Beef")
strlist[0].add("Fish")
strlist[1] = {"Apple", "Banana"}
strlist[1].add("Cherry")
print(strlist[0])
print(strlist[1])
print(strlist[2])
print("Array size:", len(strlist))
print(strlist)
Since I can't find a complete or clear answer on this issue, and since it's the second time that I use this post to fix my problems, I post my solution:
why 720? 720 is the error code for connection attempt fail, because your computer and the remote computer could not agree on PPP control protocol, I don't know exactly why it happens, but I think that is all about registry permission for installers and multiple miniport driver install made by vpn installers that are not properly programmed for win 8.1.
Solution:
check write permissions on registers
a. download a Process Monitor http://technet.microsoft.com/en-us//sysinternals/bb896645.aspx and run it
b. Use registry as target and set the filters to check witch registers aren't writable for netsh: "Process Name is 'netsh.exe'" and "result is 'ACCESS DENIED'", then get a command prompt with admin permissions and type netsh int ipv4 reset reset.log
c. for each registry key logged by the process monitor as not accessible, go to registers using regedit anche change these permissions to "complete access"
d. run the following command netsh int ipv6 reset reset.log
and repeat step c)
unistall all not-working miniports
a. go to device managers (windows+x -> device manager)
b. for each not-working miniport (the ones with yellow mark): update driver -> show non-compatible driver -> select another driver (eg. generic broadband adapter)
c. unistall these not working devices
d. reboot your computer
e. Repeat steps a) - d) until you will not see any yellow mark on miniports
delete your vpn connection and create a new one.
that worked for me (2 times, one after my first vpn connection on win 8.1, then when I reinstalled a cisco client and tried to use windows vpn again)
references:
You can use the stored procedure sp_columns which would return information pertaining to all columns for a given table. More info can be found here http://msdn.microsoft.com/en-us/library/ms176077.aspx
You can also do it by a SQL query. Some thing like this should help:
SELECT * FROM sys.columns WHERE object_id = OBJECT_ID('dbo.yourTableName')
Or a variation would be:
SELECT o.Name, c.Name
FROM sys.columns c
JOIN sys.objects o ON o.object_id = c.object_id
WHERE o.type = 'U'
ORDER BY o.Name, c.Name
This gets all columns from all tables, ordered by table name and then on column name.
Declare the variable outside of functions
function dosomething(){
var i = 0; // Can only be used inside function
}
var i = '';
function dosomething(){
i = 0; // Can be used inside and outside the function
}
The problem is your query returned false
meaning there was an error in your query. After your query you could do the following:
if (!$result) {
die(mysqli_error($link));
}
Or you could combine it with your query:
$results = mysqli_query($link, $query) or die(mysqli_error($link));
That will print out your error.
Also... you need to sanitize your input. You can't just take user input and put that into a query. Try this:
$query = "SELECT * FROM shopsy_db WHERE name LIKE '%" . mysqli_real_escape_string($link, $searchTerm) . "%'";
In reply to: Table 'sookehhh_shopsy_db.sookehhh_shopsy_db' doesn't exist
Are you sure the table name is sookehhh_shopsy_db? maybe it's really like users or something.
Use CRTL+BREAK to suspend execution at any point. You will be put into break mode and can press F5 to continue the execution or F8 to execute the code step-by-step in the visual debugger.
Of course this only works when there is no message box open, so if your VBA code constantly opens message boxes for some reason it will become a little tricky to press the keys at the right moment.
You can even edit most of the code while it is running.
Use Debug.Print
to print out messages to the Immediate Window in the VBA editor, that's way more convenient than MsgBox
.
Use breakpoints or the Stop
keyword to automatically halt execution in interesting areas.
You can use Debug.Assert
to halt execution conditionally.
That should work - so no, there is nothing wrong with your code. However, it could also be done with a dict:
{type(str()): do_something_with_a_string,
type(dict()): do_something_with_a_dict}.get(type(x), errorhandler)()
A bit more concise and pythonic wouldn't you say?
Edit.. Heeding Avisser's advice, the code also works like this, and looks nicer:
{str: do_something_with_a_string,
dict: do_something_with_a_dict}.get(type(x), errorhandler)()
Here is my attempt: The first select presents the csv field to the split. Using recursive CTE, we can create a list of numbers that are limited to the number of terms in the csv field. The number of terms is just the difference in the length of the csv field and itself with all the delimiters removed. Then joining with this numbers, substring_index extracts that term.
with recursive
T as ( select 'a,b,c,d,e,f' as items),
N as ( select 1 as n union select n + 1 from N, T
where n <= length(items) - length(replace(items, ',', '')))
select distinct substring_index(substring_index(items, ',', n), ',', -1)
group_name from N, T
This can happen in ES6 if you use the incorrect (older) syntax for static methods:
export default class MyClass
{
constructor()
{
...
}
myMethod()
{
...
}
}
MyClass.someEnum = {Red: 0, Green: 1, Blue: 2}; //works
MyClass.anotherMethod() //or
MyClass.anotherMethod = function()
{
return something; //doesn't work
}
Whereas the correct syntax is:
export default class MyClass
{
constructor()
{
...
}
myMethod()
{
...
}
static anotherMethod()
{
return something; //works
}
}
MyClass.someEnum = {Red: 0, Green: 1, Blue: 2}; //works
Yep, it's a small mistake.
if(this.items.indexOf(item) === -1) {
this.items.push(item);
console.log(this.items);
}
I ported Kris's above answer to JavaScript. After trying numerous different answers, his provided the correct points. I thought I was going crazy that I wasn't getting the points I needed.
function getLineLineCollision(p0, p1, p2, p3) {
var s1, s2;
s1 = {x: p1.x - p0.x, y: p1.y - p0.y};
s2 = {x: p3.x - p2.x, y: p3.y - p2.y};
var s10_x = p1.x - p0.x;
var s10_y = p1.y - p0.y;
var s32_x = p3.x - p2.x;
var s32_y = p3.y - p2.y;
var denom = s10_x * s32_y - s32_x * s10_y;
if(denom == 0) {
return false;
}
var denom_positive = denom > 0;
var s02_x = p0.x - p2.x;
var s02_y = p0.y - p2.y;
var s_numer = s10_x * s02_y - s10_y * s02_x;
if((s_numer < 0) == denom_positive) {
return false;
}
var t_numer = s32_x * s02_y - s32_y * s02_x;
if((t_numer < 0) == denom_positive) {
return false;
}
if((s_numer > denom) == denom_positive || (t_numer > denom) == denom_positive) {
return false;
}
var t = t_numer / denom;
var p = {x: p0.x + (t * s10_x), y: p0.y + (t * s10_y)};
return p;
}
I think it is much more simple solution:
window.location = (""+window.location).replace(/#[A-Za-z0-9_]*$/,'')+"#myAnchor"
This method does not reload the website, and sets the focus on the anchors which are needed for screen reader.
Completeness
You need to check both $mysqli
and $statement
. If they are false, you need to output $mysqli->error
or $statement->error
respectively.
Efficiency
For simple scripts that may terminate, I use simple one-liners that trigger a PHP error with the message. For a more complex application, an error warning system should be activated instead, for example by throwing an exception.
Usage example 1: Simple script
# This is in a simple command line script
$mysqli = new mysqli('localhost', 'buzUser', 'buzPassword');
$q = "UPDATE foo SET bar=1";
($statement = $mysqli->prepare($q)) or trigger_error($mysqli->error, E_USER_ERROR);
$statement->execute() or trigger_error($statement->error, E_USER_ERROR);
Usage example 2: Application
# This is part of an application
class FuzDatabaseException extends Exception {
}
class Foo {
public $mysqli;
public function __construct(mysqli $mysqli) {
$this->mysqli = $mysqli;
}
public function updateBar() {
$q = "UPDATE foo SET bar=1";
$statement = $this->mysqli->prepare($q);
if (!$statement) {
throw new FuzDatabaseException($mysqli->error);
}
if (!$statement->execute()) {
throw new FuzDatabaseException($statement->error);
}
}
}
$foo = new Foo(new mysqli('localhost','buzUser','buzPassword'));
try {
$foo->updateBar();
} catch (FuzDatabaseException $e)
$msg = $e->getMessage();
// Now send warning emails, write log
}
Here's an easy way for Windows users.
To reference images in public there are two ways I know how to do it straight forward. One is like above from Homam Bahrani.
using
<img src={process.env.PUBLIC_URL + '/yourPathHere.jpg'} />
And since this works you really don't need anything else but, this also works...
<img src={window.location.origin + '/yourPathHere.jpg'} />
It is probably better to kill the parent before the children; otherwise the parent may likely spawn new children again before he is killed himself. These will survive the killing.
My version of ps is different from that above; maybe too old, therefore the strange grepping...
To use a shell script instead of a shell function has many advantages...
However, it is basically zhigangs idea
#!/bin/bash
if test $# -lt 1 ; then
echo >&2 "usage: kiltree pid (sig)"
fi ;
_pid=$1
_sig=${2:-TERM}
_children=$(ps j | grep "^[ ]*${_pid} " | cut -c 7-11) ;
echo >&2 kill -${_sig} ${_pid}
kill -${_sig} ${_pid}
for _child in ${_children}; do
killtree ${_child} ${_sig}
done
It is very easy.
First create a connection , lets name it, con
.
Then run the following code.
get_column_names=con.execute("select * from table_name limit 1")
col_name=[i[0] for i in get_column_names.description]
print(col_name)
You will get column name as a list
Your format string is wrong. Change it to
insert = DateTime.ParseExact(line[i], "M/d/yyyy hh:mm", CultureInfo.InvariantCulture);
I think that you'll find interesting stuff in the following answer of mine that I did for a previous similar question:
https://stackoverflow.com/q/5929469/551449
In this answer, I proposed a pattern that allows a regex to catch any kind of number and since I have nothing else to add to it, I think it is fairly complete
I would suggest:
function onChange(field){
field.old=field.recent;
field.recent=field.value;
//we have available old value here;
}
Little out of date but here is a function you can use!
function calculateAge(birthMonth, birthDay, birthYear) {
var currentDate = new Date();
var currentYear = currentDate.getFullYear();
var currentMonth = currentDate.getMonth();
var currentDay = currentDate.getDate();
var calculatedAge = currentYear - birthYear;
if (currentMonth < birthMonth - 1) {
calculatedAge--;
}
if (birthMonth - 1 == currentMonth && currentDay < birthDay) {
calculatedAge--;
}
return calculatedAge;
}
var age = calculateAge(12, 8, 1993);
alert(age);
I have two extension methods to convert the normal connection string to the Entity Framework format. This version working well with class library projects without copying the connection strings from app.config file to the primary project. This is VB.Net but easy to convert to C#.
Public Module Extensions
<Extension>
Public Function ToEntityConnectionString(ByRef sqlClientConnStr As String, ByVal modelFileName As String, Optional ByVal multipleActiceResultSet As Boolean = True)
Dim sqlb As New SqlConnectionStringBuilder(sqlClientConnStr)
Return ToEntityConnectionString(sqlb, modelFileName, multipleActiceResultSet)
End Function
<Extension>
Public Function ToEntityConnectionString(ByRef sqlClientConnStrBldr As SqlConnectionStringBuilder, ByVal modelFileName As String, Optional ByVal multipleActiceResultSet As Boolean = True)
sqlClientConnStrBldr.MultipleActiveResultSets = multipleActiceResultSet
sqlClientConnStrBldr.ApplicationName = "EntityFramework"
Dim metaData As String = "metadata=res://*/{0}.csdl|res://*/{0}.ssdl|res://*/{0}.msl;provider=System.Data.SqlClient;provider connection string='{1}'"
Return String.Format(metaData, modelFileName, sqlClientConnStrBldr.ConnectionString)
End Function
End Module
After that I create a partial class for DbContext:
Partial Public Class DlmsDataContext
Public Shared Property ModelFileName As String = "AvrEntities" ' (AvrEntities.edmx)
Public Sub New(ByVal avrConnectionString As String)
MyBase.New(CStr(avrConnectionString.ToEntityConnectionString(ModelFileName, True)))
End Sub
End Class
Creating a query:
Dim newConnectionString As String = "Data Source=.\SQLEXPRESS;Initial Catalog=DB;Persist Security Info=True;User ID=sa;Password=pass"
Using ctx As New DlmsDataContext(newConnectionString)
' ...
ctx.SaveChanges()
End Using
dt.Rows[1].ItemArray
gives you a copy of item arrays. When you modify it, you're not modifying the original.
You can simply do this:
dt.Rows[1][3] = "Value";
ItemArray property is used when you want to modify all row values.
ex.:
dt.Rows[1].ItemArray = newItemArray;
You can't use variable names to bind columns or other system objects, you need dynamic sql
DECLARE @value varchar(10)
SET @value = 'intStep'
DECLARE @sqlText nvarchar(1000);
SET @sqlText = N'SELECT ' + @value + ' FROM dbo.tblBatchDetail'
Exec (@sqlText)
create table #Temp
(
EventID int,
EventTitle Varchar(50),
EventStartDate DateTime,
EventEndDate DatetIme,
EventEnumDays int,
EventStartTime Datetime,
EventEndTime DateTime,
EventRecurring Bit,
EventType int
)
;WITH Calendar
AS (SELECT /*...*/)
Insert Into #Temp
Select EventID, EventStartDate, EventEndDate, PlannedDate as [EventDates], Cast(PlannedDate As datetime) AS DT, Cast(EventStartTime As time) AS ST,Cast(EventEndTime As time) AS ET, EventTitle
,EventType from Calendar
where (PlannedDate >= GETDATE()) AND ',' + EventEnumDays + ',' like '%,' + cast(datepart(dw, PlannedDate) as char(1)) + ',%'
or EventEnumDays is null
Make sure that the table is deleted after use
If(OBJECT_ID('tempdb..#temp') Is Not Null)
Begin
Drop Table #Temp
End
The problem is you typed the wrong file extension for excel file. you used .xsl instead of xls.
I know i came in late but it can help future readers of this post.
The general theory can be found in wikipedia's article on Kademlia. The specific protocol specification used in bittorrent is here: http://wiki.theory.org/BitTorrentDraftDHTProtocol
The answers at the other link will work, but to serve out HTML, there is no need to use a view engine at all, unless you want to set up funky routing. Instead, just use the static middleware:
app.use(express.static(__dirname + '/public'));
You can use a CROSS JOIN
:
SELECT *
FROM ( SELECT SUM(Fdays) AS fDaysSum
FROM tblFieldDays
WHERE tblFieldDays.NameCode=35
AND tblFieldDays.WeekEnding=1) A -- use you real query here
CROSS JOIN (SELECT SUM(CHdays) AS hrsSum
FROM tblChargeHours
WHERE tblChargeHours.NameCode=35
AND tblChargeHours.WeekEnding=1) B -- use you real query here
First of all, you should make an HTML form containing a file input element. You also need to set the form's enctype attribute to multipart/form-data:
<form method="post" enctype="multipart/form-data" action="/upload">
<input type="file" name="file">
<input type="submit" value="Submit">
</form>
Assuming the form is defined in index.html stored in a directory named public relative to where your script is located, you can serve it this way:
const http = require("http");
const path = require("path");
const fs = require("fs");
const express = require("express");
const app = express();
const httpServer = http.createServer(app);
const PORT = process.env.PORT || 3000;
httpServer.listen(PORT, () => {
console.log(`Server is listening on port ${PORT}`);
});
// put the HTML file containing your form in a directory named "public" (relative to where this script is located)
app.get("/", express.static(path.join(__dirname, "./public")));
Once that's done, users will be able to upload files to your server via that form. But to reassemble the uploaded file in your application, you'll need to parse the request body (as multipart form data).
In Express 3.x you could use express.bodyParser
middleware to handle multipart forms but as of Express 4.x, there's no body parser bundled with the framework. Luckily, you can choose from one of the many available multipart/form-data parsers out there. Here, I'll be using multer:
You need to define a route to handle form posts:
const multer = require("multer");
const handleError = (err, res) => {
res
.status(500)
.contentType("text/plain")
.end("Oops! Something went wrong!");
};
const upload = multer({
dest: "/path/to/temporary/directory/to/store/uploaded/files"
// you might also want to set some limits: https://github.com/expressjs/multer#limits
});
app.post(
"/upload",
upload.single("file" /* name attribute of <file> element in your form */),
(req, res) => {
const tempPath = req.file.path;
const targetPath = path.join(__dirname, "./uploads/image.png");
if (path.extname(req.file.originalname).toLowerCase() === ".png") {
fs.rename(tempPath, targetPath, err => {
if (err) return handleError(err, res);
res
.status(200)
.contentType("text/plain")
.end("File uploaded!");
});
} else {
fs.unlink(tempPath, err => {
if (err) return handleError(err, res);
res
.status(403)
.contentType("text/plain")
.end("Only .png files are allowed!");
});
}
}
);
In the example above, .png files posted to /upload will be saved to uploaded directory relative to where the script is located.
In order to show the uploaded image, assuming you already have an HTML page containing an img element:
<img src="/image.png" />
you can define another route in your express app and use res.sendFile
to serve the stored image:
app.get("/image.png", (req, res) => {
res.sendFile(path.join(__dirname, "./uploads/image.png"));
});
It cant find the entry point for your program, in this case main()
. Your linker settings are likely incorrect.
See this post here
If you have VS 2013, you have to go to: %LOCALAPPDATA%\Microsoft\VisualStudio\12.0 then rename the ComponentModelCache folder.
I found this listed as the new technique
This is very detailed
SELECT * FROM INFORMATION_SCHEMA.ROUTINES
WHERE ROUTINE_TYPE = N'PROCEDURE' and ROUTINE_SCHEMA = N'dbo'
order by LAST_ALTERED desc
SELECT * FROM INFORMATION_SCHEMA.ROUTINES
WHERE ROUTINE_TYPE = N'PROCEDURE' and ROUTINE_SCHEMA = N'dbo'
order by CREATED desc
SELECT * FROM INFORMATION_SCHEMA.ROUTINES
WHERE ROUTINE_TYPE = N'FUNCTION' and ROUTINE_SCHEMA = N'dbo'
order by LAST_ALTERED desc
SELECT * FROM INFORMATION_SCHEMA.ROUTINES
WHERE ROUTINE_TYPE = N'FUNCTION' and ROUTINE_SCHEMA = N'dbo'
order by CREATED desc
In python2.x there was a dirty hack that served this purpose (NEVER use it unless absolutely necessary):
None < any integer < any string
Thus the check i < ''
holds True
for any integer i
.
It has been reasonably deprecated in python3. Now such comparisons end up with
TypeError: unorderable types: str() < int()
If you have Excel 2007 you can write VBA to alter the connections (i.e. the external data queries) in a workbook and update the CommandText property. If you simply add ?
where you want a parameter, then next time you refresh the data it'll prompt for the values for the connections! magic. When you look at the properties of the Connection the Parameters button will now be active and useable as normal.
E.g. I'd write a macro, step through it in the debugger, and make it set the CommandText appropriately. Once you've done this you can remove the macro - it's just a means to update the query.
Sub UpdateQuery
Dim cn As WorkbookConnection
Dim odbcCn As ODBCConnection, oledbCn As OLEDBConnection
For Each cn In ThisWorkbook.Connections
If cn.Type = xlConnectionTypeODBC Then
Set odbcCn = cn.ODBCConnection
' If you do have multiple connections you would want to modify
' the line below each time you run through the loop.
odbcCn.CommandText = "select blah from someTable where blah like ?"
ElseIf cn.Type = xlConnectionTypeOLEDB Then
Set oledbCn = cn.OLEDBConnection
oledbCn.CommandText = "select blah from someTable where blah like ?"
End If
Next
End Sub
My favourite rule in regards to authentication systems: use passphrases, not passwords. Easy to remember, hard to crack. More info: Coding Horror: Passwords vs. Pass Phrases
On the Web API side, simply use Request object instead of creating new HttpRequestMessage
var re = Request;
var headers = re.Headers;
if (headers.Contains("Custom"))
{
string token = headers.GetValues("Custom").First();
}
return null;
Output -
✕ is another great one that's not too thick. The HTML code is ✕
, or 2715
in hex.
I found a good way to do this with using a function and basic code. This is a code that accepts a string and counts the number of capital letters, lowercase letters and also 'other'. Other is classed as a space, punctuation mark or even Japanese and Chinese characters.
def check(count):
lowercase = 0
uppercase = 0
other = 0
low = 'a','b','c','d','e','f','g','h','i','j','k','l','m','n','o','p','q','r','s','t','u','v','w','x','y','z'
upper = 'A','B','C','D','E','F','G','H','I','J','K','L','M','N','O','P','Q','R','S','T','U','V','W','X','Y','Z'
for n in count:
if n in low:
lowercase += 1
elif n in upper:
uppercase += 1
else:
other += 1
print("There are " + str(lowercase) + " lowercase letters.")
print("There are " + str(uppercase) + " uppercase letters.")
print("There are " + str(other) + " other elements to this sentence.")
Matplotlib chooses Xwindows backend by default. You need to set matplotlib to not use the Xwindows backend.
Add this code to the start of your script (before importing pyplot) and try again:
import matplotlib
matplotlib.use('Agg')
Or add to .config/matplotlib/matplotlibrc
line backend: Agg
to use non-interactive backend.
echo "backend: Agg" > ~/.config/matplotlib/matplotlibrc
Or when connect to server use ssh -X remoteMachine
command to use Xwindows.
Also you may try to export display: export DISPLAY=mymachine.com:0.0
.
For more info: https://matplotlib.org/faq/howto_faq.html#matplotlib-in-a-web-application-server
On Windows, I prefer Ctrl + Alt + Down.
It selects the lines one by one and automatically starts the multi-line editor mode. It is a bit faster this way. If you have a lot of lines to edit then selecting the text and Ctrl + Shift + L is a better choice.
I needed the application URL but with the subdirectory. I used:
root_url(:only_path => false)
I believe this is efficient enough... To get a String from an InputStream, I'd call the following method:
public static String getStringFromInputStream(InputStream stream) throws IOException
{
int n = 0;
char[] buffer = new char[1024 * 4];
InputStreamReader reader = new InputStreamReader(stream, "UTF8");
StringWriter writer = new StringWriter();
while (-1 != (n = reader.read(buffer))) writer.write(buffer, 0, n);
return writer.toString();
}
I always use UTF-8. You could, of course, set charset as an argument, besides InputStream.
The se argument from the example also isn't in the help or online documentation.
When 'se' in geom_smooth is set 'FALSE', the error shading region is not visible
The answer given by @ray above works perfectly, but make sure you are using the right path to open up the file. If you right click on your icon and click properties, you should see where the actual path is, just copy past that and it should work.
You can try something like this....
Dim cbTime
Set cbTime = ActiveSheet.CheckBoxes.Add(100, 100, 50, 15)
With cbTime
.Name = "cbTime"
.Characters.Text = "Time"
End With
If ActiveSheet.CheckBoxes("cbTime").Value = 1 Then 'or just cbTime.Value
'checked
Else
'unchecked
End If
AdoptOpenJDK is a new website hosted by the java community. You can find .msi installers for OpenJDK 8 through 14 there, which will perform all the things listed in the question (Unpacking, registry keys, PATH variable updating (and JAVA_HOME), uninstaller...).
Most of answers (even recent) referencing JDK classes rely on File.delete()
but that is a flawed API as the operation may fail silently.
The java.io.File.delete()
method documentation states :
Note that the
java.nio.file.Files
class defines thedelete
method to throw anIOException
when a file cannot be deleted. This is useful for error reporting and to diagnose why a file cannot be deleted.
As replacement, you should favor Files.delete(Path p)
that throws an IOException
with a error message.
The actual code could be written such as :
Path index = Paths.get("/home/Work/Indexer1");
if (!Files.exists(index)) {
index = Files.createDirectories(index);
} else {
Files.walk(index)
.sorted(Comparator.reverseOrder()) // as the file tree is traversed depth-first and that deleted dirs have to be empty
.forEach(t -> {
try {
Files.delete(t);
} catch (IOException e) {
// LOG the exception and potentially stop the processing
}
});
if (!Files.exists(index)) {
index = Files.createDirectories(index);
}
}
Break your problem in 2 statements: firstly, you want to select all if
(id=3 and cut_name= '?????' and cut_name='??')
is true . Secondly, you want to select all if
(id=3) and ( cut_name='?????' or cut_name='??')
is true. So, we will join both by OR because we want to select all if anyone of them is true.
select * from emovis_reporting
where (id=3 and cut_name= '?????' and cut_name='??') OR
( (id=3) and ( cut_name='?????' or cut_name='??') )
Try this (it should work if there are multiple '=' characters in the string):
SELECT RIGHT(supplier_reference, (CHARINDEX('=',REVERSE(supplier_reference),0))-1) FROM ps_product
I know this answer is not directly related to this questions' issue but in some cases the "Uncaught ReferenceError: google is not defined" issue will occur if your js file is being called prior to the google maps api you're using...so DON'T DO this:
<script type ="text/javascript" src ="SomeJScriptfile.js"></script>
<script type="text/javascript" src="https://maps.googleapis.com/maps/api/js?v=3.exp"></script>
Use StringTokenizer to parse the string.
String s ="SALES:0,SALE_PRODUCTS:1,EXPENSES:2,EXPENSES_ITEMS:3";
Map<String, Integer> lMap=new HashMap<String, Integer>();
StringTokenizer st=new StringTokenizer(s, ",");
while(st.hasMoreTokens())
{
String [] array=st.nextToken().split(":");
lMap.put(array[0], Integer.valueOf(array[1]));
}
If you use an actuall version there is a "setup_xampp.bat/.sh" script in the root directory. The path has to be absolute but the script changes all needed paths to your current location.
I use:
netstat –aon | find "<port number>"
here o represents process ID. now you can do whatever with the process ID. To terminate the process, for e.g., use:
taskkill /F /pid <process ID>
What you can do is use nltk to tokenize words and then store all of the words in a list, here's what I did. If you don't know nltk; it stands for natural language toolkit and is used to process natural language. Here's some resource if you wanna get started [http://www.nltk.org/book/]
import nltk
from nltk.tokenize import word_tokenize
file = open("abc.txt",newline='')
result = file.read()
words = word_tokenize(result)
for i in words:
print(i)
The output will be this:
09807754
18
n
03
aristocrat
0
blue_blood
0
patrician
I, too, have need for this! My situation involves comparing actuals with budget for cost centers, where expenses may have been mis-applied and therefore need to be re-allocated to the correct cost center so as to match how they were budgeted. It is very time consuming to try and scan row-by-row to see if each expense item has been correctly allocated. I decided that I should apply conditional formatting to highlight any cells where the actuals did not match the budget. I set up the conditional formatting to change the background color if the actual amount under the cost center did not match the budgeted amount.
Here's what I did:
Start in cell A1 (or the first cell you want to have the formatting). Open the Conditional Formatting dialogue box and select Apply formatting based on a formula. Then, I wrote a formula to compare one cell to another to see if they match:
=A1=A50
If the contents of cells A1 and A50 are equal, the conditional formatting will be applied. NOTICE: no $$, so the cell references are RELATIVE! Therefore, you can copy the formula from cell A1 and PasteSpecial (format). If you only click on the cells that you reference as you write your conditional formatting formula, the cells are by default locked, so then you wouldn't be able to apply them anywhere else (you would have to write out a new rule for each line- YUK!)
What is really cool about this is that if you insert rows under the conditionally formatted cell, the conditional formatting will be applied to the inserted rows as well!
Something else you could also do with this: Use ISBLANK if the amounts are not going to be exact matches, but you want to see if there are expenses showing up in columns where there are no budgeted amounts (i.e., BLANK) .
This has been a real time-saver for me. Give it a try and enjoy!
List<Customer> list = ...;
Customer john = list.SingleOrDefault(customer => customer.Firstname == "John");
john will be null if no customer exists with a first name of "John".
If you use storyboards you can use a prototype cell in the tableview to layout your header view. Set an unique id and viewForHeaderInSection you can dequeue the cell with that ID and cast it to a UIView.
this would work too..
string your_id = "[email protected]";
string your_password = "password";
try
{
SmtpClient client = new SmtpClient
{
Host = "smtp.gmail.com",
Port = 587,
EnableSsl = true,
DeliveryMethod = SmtpDeliveryMethod.Network,
Credentials = new System.Net.NetworkCredential(your_id, your_password),
Timeout = 10000,
};
MailMessage mm = new MailMessage(your_iD, "[email protected]", "subject", "body");
client.Send(mm);
Console.WriteLine("Email Sent");
}
catch (Exception e)
{
Console.WriteLine("Could not end email\n\n"+e.ToString());
}
for simple tasks, we can use http://flower.readthedocs.io/en/latest/screenshots.html and http://policystat.github.io/jobtastic/ to do the monitoring.
and for complicated tasks, say a task which deals with a lot other modules. We recommend manually record the progress and message on the specific task unit.
Here's what I'm currently using to accomplish that.
$.xhrPool = [];
$.xhrPool.abortAll = function() {
_.each(this, function(jqXHR) {
jqXHR.abort();
});
};
$.ajaxSetup({
beforeSend: function(jqXHR) {
$.xhrPool.push(jqXHR);
}
});
Note: _.each of underscore.js is present, but obviously not necessary. I'm just lazy and I don't want to change it to $.each(). 8P
Using awk, and based in some of the options below, using a for loop makes a bit more flexible; sometimes I may want to delete the first 9 columns ( if I do an "ls -lrt" for example), so I change the 2 for a 9 and that's it:
awk '{ for(i=0;i++<2;){$i=""}; print $0 }' your_file.txt
I'm having the same problem, but it gets solved with installation of python-dev
.
Before installing PIL, run following command:
sudo apt-get install python-dev
Then install PIL:
pip install PIL
Solution for this -
Problem -
$ git clone https://github.com/abc/def.git
Cloning into 'def'...
remote: Repository not found.
fatal: repository 'https://github.com/abc/def.git/' not found
Solution - uninstall the credential manager -
abc@DESKTOP-4B77L5B MINGW64 /c/xampp/htdocs
$ git credential-manager uninstall
abc@DESKTOP-4B77L5B MINGW64 /c/xampp/htdocs
$ git credential-manager install
It works....
Looking over the provided solutions I'm always think about drawbacks of modern education in IT field. Most of the developers are forgetting that even modern CPU's suffer from executing conditional operators, while arithmetics operations, especially with powers of 2 are faster. So on the purpose I'm showing this solution in PHP thread without any optimizations:
list($year,$month,$day) = explode("-",$birthday);
$age=floor(((date("Y")-$year)*512+(date("m")-$month)*32+date("d")-$day)/512);
In other languages which have strict type definitions and capable replacing * and / by shifts, this formula will "fly". Also changing divisor you can calculate age in months, weeks &etc. Be carefull, the order of operands in differences is essential
You're so close it's crazy.
if($(this).attr("name"))
There's no hasAttr but hitting an attribute by name will just return undefined if it doesn't exist.
This is why the below works. If you remove the name attribute from #heading the second alert will fire.
Update: As per the comments, the below will ONLY work if the attribute is present AND is set to something not if the attribute is there but empty
<script type="text/javascript">
$(document).ready(function()
{
if ($("#heading").attr("name"))
alert('Look, this is showing because it\'s not undefined');
else
alert('This would be called if it were undefined or is there but empty');
});
</script>
<h1 id="heading" name="bob">Welcome!</h1>
Internal will allow you to reference, say, a Data Access static class (for thread safety) between multiple business logic classes, while not subscribing them to inherit that class/trip over each other in connection pools, and to ultimately avoid allowing a DAL class to promote access at the public level. This has countless backings in design and best practices.
Entity Framework makes good use of this type of access