Both are same as kill -sigkill processID, kill -9 processID. Its basically for forced termination of the process.
I don't see any problem, unless you are not managing them using a connection pool.
If you use connection pool, these connections are re-used instead of initiating new connections. so basically, leaving open connections and re-use them it is less problematic than re-creating them each time.
In the parent process, fork()'s return value is the process ID of the child process. Stuff that value away somewhere for when you need to terminate the child process. fork() returns zero(0) in the child process.
When you need to terminate the child process, use the kill(2) function with the process ID returned by fork(), and the signal you wish to deliver (e.g. SIGTERM).
Remember to call wait() on the child process to prevent any lingering zombies.
First
ps -ef
to list all processes. Note the the process number of the one you want to kill. Then
kill 1234
were you replace 1234 with the process number that you want.
Alternatively, if you are absolutely certain that there is only one process with a particular name, or you want to kill multiple processes which share the same name
killall processname
this worked for me in windows 7
import subprocess
subprocess.call("taskkill /IM geckodriver.exe")
It is better if you don't kill a thread. A way could be to introduce a "try" block into the thread's cycle and to throw an exception when you want to stop the thread (for example a break/return/... that stops your for/while/...). I've used this on my app and it works...
add this to your activity
@Override
public boolean onKeyDown(int keyCode, KeyEvent event)
{
if ((keyCode == KeyEvent.KEYCODE_BACK))
{
finish();
}
return super.onKeyDown(keyCode, event);
}
Connect to mysql
mysql -uusername -p -hhostname
show full processlist:
mysql> show full processlist;
+---------+--------+-------------------+---------+---------+------+-------+------------------+
| Id | User | Host | db | Command | Time | State | Info |
+---------+--------+-------------------+---------+---------+------+-------+------------------+
| 9255451 | logreg | dmin001.ops:37651 | logdata | Query | 0 | NULL | show processlist |
+---------+--------+-------------------+---------+---------+------+-------+------------------+
Kill the specific query. Here id=9255451
mysql> kill 9255451;
If you get permission denied, try this SQL:
CALL mysql.rds_kill(9255451)
== ISSUE THIS COMMAND
[xxx@devxxx ~]$ screen -ls
== SCREEN RESPONDS
There are screens on:
23487.pts-0.devxxx (Detached)
26727.pts-0.devxxx (Attached)
2 Sockets in /tmp/uscreens/S-xxx.
== NOW KILL THE ONE YOU DONT WANT
[xxx@devxxx ~]$ screen -X -S 23487.pts-0.devxxx kill
== WANT PROOF?
[xxx@devxxx ~]$ screen -ls
There is a screen on:
26727.pts-0.devxxx (Attached)
1 Socket in /tmp/uscreens/S-xxx.
I encountered this problem lately. Finally, I found my processes were killed just after Opensuse zypper update was called automatically. To disable zypper update solved my problem.
My understanding of the Android application framework is that this is specifically not permitted. An application is closed automatically when it contains no more current activities. Trying to create a "kill" button is apparently contrary to the intended design of the application system.
To get the sort of effect you want, you could initiate your various activities with startActivityForResult(), and have the exit button send back a result which tells the parent activity to finish(). That activity could then send the same result as part of its onDestroy(), which would cascade back to the main activity and result in no running activities, which should cause the app to close.
I just had the same happen on me when I tried to run a python script from a shared folder in VirtualBox
within the new Ubuntu 20.04 LTS. Python bailed with Killed
while loading my own personal library. When I moved the folder to a local directory, the issue went away. It appears that the Killed
stop happened during the initial imports of my library as I got messages of missing libraries once I moved the folder over.
The issue went away after I restarted my computer.
Therefore, people may want to try moving the program to a local directory if its over a share of some kind or it could be a transient problem that just requires a reboot of the OS.
Depending on the version, do:
version <2.3.0
Kill a hadoop job:
hadoop job -kill $jobId
You can get a list of all jobId's doing:
hadoop job -list
version >=2.3.0
Kill a hadoop job:
yarn application -kill $ApplicationId
You can get a list of all ApplicationId's doing:
yarn application -list
I opened one Word file, 2. Now I open another word file through vb.net runtime programmatically. 3. I want to kill the second process alone through programmatically. 4. Do not kill first process
There's a special variable for this in bash:
kill $!
$! expands to the PID of the last process executed in the background.
In order to kill use:
killall -9 /usr/bin/node
To reload use:
killall -12 /usr/bin/node
I found the below snippet helpful. Taken from: http://jeromeblog-jerome.blogspot.com/2007/10/how-to-unlock-record-on-oracle.html
select
owner||'.'||object_name obj ,
oracle_username||' ('||s.status||')' oruser ,
os_user_name osuser ,
machine computer ,
l.process unix ,
s.sid||','||s.serial# ss ,
r.name rs ,
to_char(s.logon_time,'yyyy/mm/dd hh24:mi:ss') time
from v$locked_object l ,
dba_objects o ,
v$session s ,
v$transaction t ,
v$rollname r
where l.object_id = o.object_id
and s.sid=l.session_id
and s.taddr=t.addr
and t.xidusn=r.usn
order by osuser, ss, obj
;
Then ran:
Alter System Kill Session '<value from ss above>'
;
To kill individual sessions.
There is special method:
a.unshift(value);
But if you want to prepend several elements to array it would be faster to use such a method:
var a = [1, 2, 3],
b = [4, 5];
function prependArray(a, b) {
var args = b;
args.unshift(0);
args.unshift(0);
Array.prototype.splice.apply(a, args);
}
prependArray(a, b);
console.log(a); // -> [4, 5, 1, 2, 3]
(Update: overlooked a fault in the matter, I have corrected)
(Update2: I wrote from memory the code screwed up, repaired it)
(Update3: check on SQLFiddle)
create table Derived_Values
(
BusinessUnit nvarchar(100) not null
,Questions nvarchar(100) not null
,Answer nvarchar(100)
)
go
ALTER TABLE Derived_Values ADD CONSTRAINT PK_Derived_Values
PRIMARY KEY CLUSTERED (BusinessUnit, Questions);
create table Derived_Values_Test
(
BusinessUnit nvarchar(150)
,Questions nvarchar(100)
,Answer nvarchar(100)
)
go
CREATE TRIGGER trgAfterUpdate ON [Derived_Values]
FOR UPDATE
AS
begin
declare @BusinessUnit nvarchar(50)
set @BusinessUnit = 'Updated Record -- After Update Trigger.'
insert into
[Derived_Values_Test]
--(BusinessUnit,Questions, Answer)
SELECT
@BusinessUnit + i.BusinessUnit, i.Questions, i.Answer
FROM
inserted i
inner join deleted d on i.BusinessUnit = d.BusinessUnit
end
go
CREATE TRIGGER trgAfterDelete ON [Derived_Values]
FOR UPDATE
AS
begin
declare @BusinessUnit nvarchar(50)
set @BusinessUnit = 'Deleted Record -- After Delete Trigger.'
insert into
[Derived_Values_Test]
--(BusinessUnit,Questions, Answer)
SELECT
@BusinessUnit + d.BusinessUnit, d.Questions, d.Answer
FROM
deleted d
end
go
insert Derived_Values (BusinessUnit,Questions, Answer) values ('BU1', 'Q11', 'A11')
insert Derived_Values (BusinessUnit,Questions, Answer) values ('BU1', 'Q12', 'A12')
insert Derived_Values (BusinessUnit,Questions, Answer) values ('BU2', 'Q21', 'A21')
insert Derived_Values (BusinessUnit,Questions, Answer) values ('BU2', 'Q22', 'A22')
UPDATE Derived_Values SET Answer='Updated Answers A11' from Derived_Values WHERE (BusinessUnit = 'BU1') AND (Questions = 'Q11');
UPDATE Derived_Values SET Answer='Updated Answers A12' from Derived_Values WHERE (BusinessUnit = 'BU1') AND (Questions = 'Q12');
UPDATE Derived_Values SET Answer='Updated Answers A21' from Derived_Values WHERE (BusinessUnit = 'BU2') AND (Questions = 'Q21');
UPDATE Derived_Values SET Answer='Updated Answers A22' from Derived_Values WHERE (BusinessUnit = 'BU2') AND (Questions = 'Q22');
delete Derived_Values;
and then:
SELECT * FROM Derived_Values;
go
select * from Derived_Values_Test;
Record Count: 0;
BUSINESSUNIT QUESTIONS ANSWER
Updated Record -- After Update Trigger.BU1 Q11 Updated Answers A11
Deleted Record -- After Delete Trigger.BU1 Q11 A11
Updated Record -- After Update Trigger.BU1 Q12 Updated Answers A12
Deleted Record -- After Delete Trigger.BU1 Q12 A12
Updated Record -- After Update Trigger.BU2 Q21 Updated Answers A21
Deleted Record -- After Delete Trigger.BU2 Q21 A21
Updated Record -- After Update Trigger.BU2 Q22 Updated Answers A22
Deleted Record -- After Delete Trigger.BU2 Q22 A22
(Update4: If you want to sync: SQLFiddle)
create table Derived_Values
(
BusinessUnit nvarchar(100) not null
,Questions nvarchar(100) not null
,Answer nvarchar(100)
)
go
ALTER TABLE Derived_Values ADD CONSTRAINT PK_Derived_Values
PRIMARY KEY CLUSTERED (BusinessUnit, Questions);
create table Derived_Values_Test
(
BusinessUnit nvarchar(150) not null
,Questions nvarchar(100) not null
,Answer nvarchar(100)
)
go
ALTER TABLE Derived_Values_Test ADD CONSTRAINT PK_Derived_Values_Test
PRIMARY KEY CLUSTERED (BusinessUnit, Questions);
CREATE TRIGGER trgAfterInsert ON [Derived_Values]
FOR INSERT
AS
begin
insert
[Derived_Values_Test]
(BusinessUnit,Questions,Answer)
SELECT
i.BusinessUnit, i.Questions, i.Answer
FROM
inserted i
end
go
CREATE TRIGGER trgAfterUpdate ON [Derived_Values]
FOR UPDATE
AS
begin
declare @BusinessUnit nvarchar(50)
set @BusinessUnit = 'Updated Record -- After Update Trigger.'
update
[Derived_Values_Test]
set
--BusinessUnit = i.BusinessUnit
--,Questions = i.Questions
Answer = i.Answer
from
[Derived_Values]
inner join inserted i
on
[Derived_Values].BusinessUnit = i.BusinessUnit
and
[Derived_Values].Questions = i.Questions
end
go
CREATE TRIGGER trgAfterDelete ON [Derived_Values]
FOR DELETE
AS
begin
delete
[Derived_Values_Test]
from
[Derived_Values_Test]
inner join deleted d
on
[Derived_Values_Test].BusinessUnit = d.BusinessUnit
and
[Derived_Values_Test].Questions = d.Questions
end
go
insert Derived_Values (BusinessUnit,Questions, Answer) values ('BU1', 'Q11', 'A11')
insert Derived_Values (BusinessUnit,Questions, Answer) values ('BU1', 'Q12', 'A12')
insert Derived_Values (BusinessUnit,Questions, Answer) values ('BU2', 'Q21', 'A21')
insert Derived_Values (BusinessUnit,Questions, Answer) values ('BU2', 'Q22', 'A22')
UPDATE Derived_Values SET Answer='Updated Answers A11' from Derived_Values WHERE (BusinessUnit = 'BU1') AND (Questions = 'Q11');
UPDATE Derived_Values SET Answer='Updated Answers A12' from Derived_Values WHERE (BusinessUnit = 'BU1') AND (Questions = 'Q12');
UPDATE Derived_Values SET Answer='Updated Answers A21' from Derived_Values WHERE (BusinessUnit = 'BU2') AND (Questions = 'Q21');
UPDATE Derived_Values SET Answer='Updated Answers A22' from Derived_Values WHERE (BusinessUnit = 'BU2') AND (Questions = 'Q22');
--delete Derived_Values;
And then:
SELECT * FROM Derived_Values;
go
select * from Derived_Values_Test;
BUSINESSUNIT QUESTIONS ANSWER
BU1 Q11 Updated Answers A11
BU1 Q12 Updated Answers A12
BU2 Q21 Updated Answers A21
BU2 Q22 Updated Answers A22
BUSINESSUNIT QUESTIONS ANSWER
BU1 Q11 Updated Answers A11
BU1 Q12 Updated Answers A12
BU2 Q21 Updated Answers A21
BU2 Q22 Updated Answers A22
Just helpful information - here is newest TypeScript / JavaScript runtime Deno.
It was created by the creator of node Ryan Dahl, based on what he would do differently if he could start fresh.
Simply works as:
$("a. close").live("click",function(event){
return confirm("Do you want to delete?");
});
showModalBottomSheet(
backgroundColor: Colors.transparent,
context: context, builder: (context) {
return Container(
decoration: BoxDecoration(
color: Colors.white,
borderRadius: BorderRadius.only(
topLeft:Radius.circular(40) ,
topRight: Radius.circular(40)
),
),
padding: EdgeInsets.symmetric(vertical: 20,horizontal: 60),
child: Settings_Form(),
);
});
Strings in java are immutable. That means you need to create a new string or overwrite your old string to achieve the desired affect:
id = id.replace(".xml", "");
/index.html
<!doctype html>
<html>
<head>
<title>My Application</title>
<!-- load application bundle asynchronously -->
<script async src="/app.js"></script>
<style type="text/css">
/* pre-rendered critical path CSS (see isomorphic-style-loader) */
</style>
</head>
<body>
<div id="app">
<!-- pre-rendered markup of your JavaScript app (see isomorphic apps) -->
</div>
</body>
</html>
/app.js
import React from 'react';
import ReactDOM from 'react-dom';
import App from './components/App';
function run() {
ReactDOM.render(<App />, document.getElementById('app'));
}
const loadedStates = ['complete', 'loaded', 'interactive'];
if (loadedStates.includes(document.readyState) && document.body) {
run();
} else {
window.addEventListener('DOMContentLoaded', run, false);
}
(IE9+)
Note: Having <script async src="..."></script>
in the header ensures that the browser will start downloading JavaScript bundle before HTML content is loaded.
I took @Ravi Thapliyal's code and made a method: It is simple and might not clean everything, but so far it is doing what I need it to do.
public static string ScrubHtml(string value) {
var step1 = Regex.Replace(value, @"<[^>]+>| ", "").Trim();
var step2 = Regex.Replace(step1, @"\s{2,}", " ");
return step2;
}
The each
method is meant to be an immutable iterator, where as the map
method can be used as an iterator, but is really meant to manipulate the supplied array and return a new array.
Another important thing to note is that the each
function returns the original array while the map
function returns a new array. If you overuse the return value of the map function you can potentially waste a lot of memory.
For example:
var items = [1,2,3,4];
$.each(items, function() {
alert('this is ' + this);
});
var newItems = $.map(items, function(i) {
return i + 1;
});
// newItems is [2,3,4,5]
You can also use the map function to remove an item from an array. For example:
var items = [0,1,2,3,4,5,6,7,8,9];
var itemsLessThanEqualFive = $.map(items, function(i) {
// removes all items > 5
if (i > 5)
return null;
return i;
});
// itemsLessThanEqualFive = [0,1,2,3,4,5]
You'll also note that the this
is not mapped in the map
function. You will have to supply the first parameter in the callback (eg we used i
above). Ironically, the callback arguments used in the each method are the reverse of the callback arguments in the map function so be careful.
map(arr, function(elem, index) {});
// versus
each(arr, function(index, elem) {});
In short, yes, the order is preserved. In long:
In general the following definitions will always apply to objects like lists:
A list is a collection of elements that can contain duplicate elements and has a defined order that generally does not change unless explicitly made to do so. stacks and queues are both types of lists that provide specific (often limited) behavior for adding and removing elements (stacks being LIFO, queues being FIFO). Lists are practical representations of, well, lists of things. A string can be thought of as a list of characters, as the order is important ("abc" != "bca"
) and duplicates in the content of the string are certainly permitted ("aaa"
can exist and != "a"
).
A set is a collection of elements that cannot contain duplicates and has a non-definite order that may or may not change over time. Sets do not represent lists of things so much as they describe the extent of a certain selection of things. The internal structure of set, how its elements are stored relative to each other, is usually not meant to convey useful information. In some implementations, sets are always internally sorted; in others the ordering is simply undefined (usually depending on a hash function).
Collection is a generic term referring to any object used to store a (usually variable) number of other objects. Both lists and sets are a type of collection. Tuples and Arrays are normally not considered to be collections. Some languages consider maps (containers that describe associations between different objects) to be a type of collection as well.
This naming scheme holds true for all programming languages that I know of, including Python, C++, Java, C#, and Lisp (in which lists not keeping their order would be particularly catastrophic). If anyone knows of any where this is not the case, please just say so and I'll edit my answer. Note that specific implementations may use other names for these objects, such as vector in C++ and flex in ALGOL 68 (both lists; flex is technically just a re-sizable array).
If there is any confusion left in your case due to the specifics of how the +
sign works here, just know that order is important for lists and unless there is very good reason to believe otherwise you can pretty much always safely assume that list operations preserve order. In this case, the +
sign behaves much like it does for strings (which are really just lists of characters anyway): it takes the content of a list and places it behind the content of another.
If we have
list1 = [0, 1, 2, 3, 4]
list2 = [5, 6, 7, 8, 9]
Then
list1 + list2
Is the same as
[0, 1, 2, 3, 4] + [5, 6, 7, 8, 9]
Which evaluates to
[0, 1, 2, 3, 4, 5, 6, 7, 8, 9]
Much like
"abdcde" + "fghijk"
Produces
"abdcdefghijk"
I got a similar error with '/' operand while processing images. I discovered the folder included a text file created by the 'XnView' image viewer. So, this kind of error occurs when some object is not the kind of object expected.
I had a similar problem with dynamically adding datepicker classes. The solution I found was to comment out line 46 of datepicker.js
// this.element.on('click', $.proxy(this.show, this));
This works well for console in debug mode
log4j.appender.console=org.apache.log4j.ConsoleAppender
log4j.appender.console.Threshold=DEBUG
log4j.appender.console.Target=System.out
log4j.appender.console.layout=org.apache.log4j.PatternLayout
log4j.appender.console.layout.conversionPattern=%d{yyyy-MM-dd HH:mm:ss,SSS} %-5p - %m%n
You can effectively remove scientific notation in printing with this code:
options(scipen=999)
You don't need to parse the string, it's defined as a string already.
Just do:
private static String getStringInput (String prompt) {
String input = EZJ.getUserInput(prompt);
return input;
}
Try Double.isNaN()
:
Returns true if this Double value is a Not-a-Number (NaN), false otherwise.
Note that [double.isNaN()
] will not work, because unboxed doubles do not have methods associated with them.
Pure Lua uses only what is in ANSI standard C. Luiz Figuereido's lposix module contains much of what you need to do more systemsy things.
the very specific answer to the point is confirm dialogue Js Function:
confirm('Do you really want to do so');
It show dialogue box with ok cancel buttons,to replace these button with yes no is not so simple task,for that you need to write jQuery function.
My preferred option on 2.0.0 and up is to create a 404 route and also allow a ** route path to resolve to the same component. This allows you to log and display more information about the invalid route rather than a plain redirect which can act to hide the error.
Simple 404 example:
{ path '/', component: HomeComponent },
// All your other routes should come first
{ path: '404', component: NotFoundComponent },
{ path: '**', component: NotFoundComponent }
To display the incorrect route information add in import to router within NotFoundComponent:
import { Router } from '@angular/router';
Add it to the constructior of NotFoundComponent:
constructor(public router: Router) { }
Then you're ready to reference it from your HTML template e.g.
The page <span style="font-style: italic">{{router.url}}</span> was not found.
I hope you use the java collection / java commons collections!
With an java.util.ArrayList you can do things like the following:
yourArrayList.remove(someObject);
yourArrayList.add(someObject);
I fix this issue on Mac by uninstalling create-react-app
from global npm lib, that's basically what said, just try to do, you need also do sudo
:
sudo npm uninstall -g create-react-app
Then simply run:
npx create-react-app my-app-name
Now should be all good and get the folder structures as below:
res = request.GET['paymentid']
will raise a KeyError
if paymentid
is not in the GET data.
Your sample php code checks to see if paymentid
is in the POST data, and sets $payID
to '' otherwise:
$payID = isset($_POST['paymentid']) ? $_POST['paymentid'] : ''
The equivalent in python is to use the get()
method with a default argument:
payment_id = request.POST.get('payment_id', '')
while debugging, this is what I see in the
response.GET: <QueryDict: {}>
,request.POST: <QueryDict: {}>
It looks as if the problem is not accessing the POST data, but that there is no POST data. How are you are debugging? Are you using your browser, or is it the payment gateway accessing your page? It would be helpful if you shared your view.
Once you are managing to submit some post data to your page, it shouldn't be too tricky to convert the sample php to python.
Using !important
is not recommended but in this situation I think you should -
Write this in your internal CSS -
.flex-control-thumbs li {
width: auto !important;
float: none !important;
}
I think awk
would be the best tool for this as it can both filter and perform the necessary string manipulation functions on filtered lines:
tail -f logfile | awk '/org.springframework/ {print substr($0, 6)}'
or
tail -f logfile | awk '/org.springframework/ && sub(/^.{5}/,"",$0)'
mark the java folder as source root.It will solve.
Mine is more simple than the others hopefully you can understand this if you are a some what new programmer like myself.
import java.util.Scanner;
import java.lang.Math;
public class DigitsSum {
public static void main(String[] args) {
Scanner in = new Scanner(System.in);
int digit = 0;
System.out.print("Please enter a positive integer: ");
digit = in.nextInt();
int D1 = 0;
int D2 = 0;
int D3 = 0;
int G2 = 0;
D1 = digit / 100;
D2 = digit % 100;
G2 = D2 / 10;
D3 = digit % 10;
System.out.println(D3 + G2 + D1);
}
}
There is an Open Source java library MgntUtils that has a Utility that converts Strings to unicode sequence and vise versa:
result = "Hello World";
result = StringUnicodeEncoderDecoder.encodeStringToUnicodeSequence(result);
System.out.println(result);
result = StringUnicodeEncoderDecoder.decodeUnicodeSequenceToString(result);
System.out.println(result);
The output of this code is:
\u0048\u0065\u006c\u006c\u006f\u0020\u0057\u006f\u0072\u006c\u0064
Hello World
The library can be found at Maven Central or at Github It comes as maven artifact and with sources and javadoc
Here is javadoc for the class StringUnicodeEncoderDecoder
This simple mechanism you can use for detecting finishing of a thread without blocking in join method.
std::thread thread([&thread]() {
sleep(3);
thread.detach();
});
while(thread.joinable())
sleep(1);
<link rel="SHORTCUT ICON" href="favicon.ico" type="image/x-icon" />
<link rel="ICON" href="favicon.ico" type="image/ico" />
Excellent tool for cross-browser favicon - http://www.convertico.com/
Reformatting a date string is fairly straightforward, e.g.
var s = 'Sun May 11,2014';_x000D_
_x000D_
function reformatDate(s) {_x000D_
function z(n){return ('0' + n).slice(-2)}_x000D_
var months = [,'jan','feb','mar','apr','may','jun',_x000D_
'jul','aug','sep','oct','nov','dec'];_x000D_
var b = s.split(/\W+/);_x000D_
return b[3] + '-' +_x000D_
z(months.indexOf(b[1].substr(0,3).toLowerCase())) + '-' +_x000D_
z(b[2]);_x000D_
}_x000D_
_x000D_
console.log(reformatDate(s));
_x000D_
The issue here is that you've opened a file and read its contents so the cursor is at the end of the file. By writing to the same file handle, you're essentially appending to the file.
The easiest solution would be to close the file after you've read it in, then reopen it for writing.
with open("replayScript.json", "r") as jsonFile:
data = json.load(jsonFile)
data["location"] = "NewPath"
with open("replayScript.json", "w") as jsonFile:
json.dump(data, jsonFile)
Alternatively, you can use seek()
to move the cursor back to the beginning of the file then start writing, followed by a truncate()
to deal with the case where the new data is smaller than the previous.
with open("replayScript.json", "r+") as jsonFile:
data = json.load(jsonFile)
data["location"] = "NewPath"
jsonFile.seek(0) # rewind
json.dump(data, jsonFile)
jsonFile.truncate()
use this
if (userProfile.AccountType == AccountType.Retailer)
{
...
}
If you want to get int from your AccountType enum and compare it (don't know why) do this:
if((int)userProfile.AccountType == 1)
{
...
}
Objet reference not set to an instance of an object
exception is because your userProfile is null and you are getting property of null. Check in debug why it's not set.
EDIT (thanks to @Rik and @KonradMorawski) :
Maybe you can do some check before:
if(userProfile!=null)
{
}
or
if(userProfile==null)
{
throw new ArgumentNullException(nameof(userProfile)); // or any other exception
}
This is an older question with a proper answer (please use parameterized queries) which I'd like to extend with some timezone discussion. For my current project I was interested in how do the datetime
columns handle timezones and this question is the one I found.
Turns out, they do not, at all.
datetime
column stores the given DateTime
as is, without any conversion. It does not matter if the given datetime is UTC or local.
You can see for yourself:
using (var connection = new SqlConnection(connectionString))
{
connection.Open();
using (var command = connection.CreateCommand())
{
command.CommandText = "SELECT * FROM (VALUES (@a, @b, @c)) example(a, b, c);";
var local = DateTime.Now;
var utc = local.ToUniversalTime();
command.Parameters.AddWithValue("@a", utc);
command.Parameters.AddWithValue("@b", local);
command.Parameters.AddWithValue("@c", utc.ToLocalTime());
using (var reader = command.ExecuteReader())
{
reader.Read();
var localRendered = local.ToString("o");
Console.WriteLine($"a = {utc.ToString("o").PadRight(localRendered.Length, ' ')} read = {reader.GetDateTime(0):o}, {reader.GetDateTime(0).Kind}");
Console.WriteLine($"b = {local:o} read = {reader.GetDateTime(1):o}, {reader.GetDateTime(1).Kind}");
Console.WriteLine($"{"".PadRight(localRendered.Length + 4, ' ')} read = {reader.GetDateTime(2):o}, {reader.GetDateTime(2).Kind}");
}
}
}
What this will print will of course depend on your time zone but most importantly the read values will all have Kind = Unspecified
. The first and second output line will be different by your timezone offset. Second and third will be the same. Using the "o" format string (roundtrip) will not show any timezone specifiers for the read values.
Example output from GMT+02:00:
a = 2018-11-20T10:17:56.8710881Z read = 2018-11-20T10:17:56.8700000, Unspecified
b = 2018-11-20T12:17:56.8710881+02:00 read = 2018-11-20T12:17:56.8700000, Unspecified
read = 2018-11-20T12:17:56.8700000, Unspecified
Also note of how the data gets truncated (or rounded) to what seems like 10ms.
Removing with
rm -rf .*
may get you into trouble or some more errors.
If you have /path/to/folder, and would like to remove everything inside, but not that folder, just run:
rm -rf /path/to/folder/*
The only thing that worked for me on Elementary OS Luna, a Ubuntu Fork. I am on x86 architecture. I tried all the answers here but finally decided to install it from source.
First, make sure its not installed using the package manager:
sudo apt-get purge nodejs npm -y
I went to the download page to lookup the latest source & download it, http://nodejs.org/download/. You can use curl, wget or your browser to get it:
wget http://nodejs.org/dist/v0.10.34/node-v0.10.34.tar.gz
tar -xvf node-v0.10.34.tar.gz
cd node-v0.10.34
./configure
make
sudo make install
The make might take a while. When done, you should have node and npm installed and working in your /usr/local/bin directory which should be already on your path. You should verify where it lives:
which npm node
I also had to change the permissions to get it to work:
sudo chown -R $USER /usr/local
If it didn't work check your path:
echo $PATH
Note that installing it this way, it will not be managed by apt-get package manager. Cheers!
In [1]: import sys
In [2]: sys.version
2.7.11 |Anaconda 2.5.0 (64-bit)| (default, Dec 6 2015, 18:08:32)
[GCC 4.4.7 20120313 (Red Hat 4.4.7-1)]
In [3]: sys.version_info
sys.version_info(major=2, minor=7, micro=11, releaselevel='final', serial=0)
In [4]: sys.version_info >= (2,7)
Out[4]: True
In [5]: sys.version_info >= (3,)
Out[5]: False
1: No difference. It is kept around to allow old S-code to continue to function. This is documented a "Note" in ?Math
2: Yes: But you already know it:
`^`(x,y)
#[1] 1024
In R the mathematical operators are really functions that the parser takes care of rearranging arguments and function names for you to simulate ordinary mathematical infix notation. Also documented at ?Math
.
Edit: Let me add that knowing how R handles infix operators (i.e. two argument functions) is very important in understanding the use of the foundational infix "[[" and "["-functions as (functional) second arguments to lapply
and sapply
:
> sapply( list( list(1,2,3), list(4,3,6) ), "[[", 1)
[1] 1 4
> firsts <- function(lis) sapply(lis, "[[", 1)
> firsts( list( list(1,2,3), list(4,3,6) ) )
[1] 1 4
As one of the comments in this posting suggests using stored procedures to return the data... I think that is the best answer. In my case what I did is wrote a View
to encapsulate the query logic and joins, then I wrote a Stored Proc
to return the data sorted and the proc also includes other enhancement features such as parameters for filtering the data.
Now you have to option to query the view, which allows you to manipulate the data further. Or you have the option to execute the stored proc, which is quicker and more precise output.
STORED PROC Execution to query data
VIEW Definition
USE [DBA]
GO
/****** Object: View [olap].[vwUsageStatsLogSessionsRollup] Script Date: 2/19/2019 10:10:06 AM ******/
SET ANSI_NULLS ON
GO
SET QUOTED_IDENTIFIER ON
GO
--USE DBA
-- select * from olap.UsageStatsLog_GCOP039 where CubeCommand='[ORDER_HISTORY]'
;
ALTER VIEW [olap].[vwUsageStatsLogSessionsRollup] as
(
SELECT --*
t1.UsageStatsLogDate
, COALESCE(CAST(t1.UsageStatsLogDate AS nvarchar(100)), 'TOTAL- DATES:') AS UsageStatsLogDate_Totals
, t1.ADUserNameDisplayNEW
, COALESCE(t1.ADUserNameDisplayNEW, 'TOTAL- USERS:') AS ADUserNameDisplay_Totals
, t1.CubeCommandNEW
, COALESCE(t1.CubeCommandNEW, 'TOTAL- CUBES:') AS CubeCommand_Totals
, t1.SessionsCount
, t1.UsersCount
, t1.CubesCount
FROM
(
select
CAST(olapUSL.UsageStatsLogTime as date) as UsageStatsLogDate
, olapUSL.ADUserNameDisplayNEW
, olapUSL.CubeCommandNEW
, count(*) SessionsCount
, count(distinct olapUSL.ADUserNameDisplayNEW) UsersCount
, count(distinct olapUSL.CubeCommandNEW) CubesCount
from
olap.vwUsageStatsLog olapUSL
where CubeCommandNEW != '[]'
GROUP BY CUBE(CAST(olapUSL.UsageStatsLogTime as date), olapUSL.ADUserNameDisplayNEW, olapUSL.CubeCommandNEW )
----GROUP BY
------GROUP BY GROUPING SETS
--------GROUP BY ROLLUP
) t1
--ORDER BY
-- t1.UsageStatsLogDate DESC
-- , t1.ADUserNameDisplayNEW
-- , t1.CubeCommandNEW
)
;
GO
STORED PROC Definition
USE [DBA]
GO
/****** Object: StoredProcedure [olap].[uspUsageStatsLogSessionsRollup] Script Date: 2/19/2019 9:39:31 AM ******/
SET ANSI_NULLS ON
GO
SET QUOTED_IDENTIFIER ON
GO
-- =============================================
-- Author: BRIAN LOFTON
-- Create date: 2/19/2019
-- Description: This proceedured returns data from a view with sorted results and an optional date range filter.
-- =============================================
ALTER PROCEDURE [olap].[uspUsageStatsLogSessionsRollup]
-- Add the parameters for the stored procedure here
@paramStartDate date = NULL,
@paramEndDate date = NULL,
@paramDateTotalExcluded as int = 0,
@paramUserTotalExcluded as int = 0,
@paramCubeTotalExcluded as int = 0
AS
BEGIN
-- SET NOCOUNT ON added to prevent extra result sets from interfering with SELECT statements.
SET NOCOUNT ON;
DECLARE @varStartDate as date
= CASE
WHEN @paramStartDate IS NULL THEN '1900-01-01'
ELSE @paramStartDate
END
DECLARE @varEndDate as date
= CASE
WHEN @paramEndDate IS NULL THEN '2100-01-01'
ELSE @paramStartDate
END
-- Return Data from this statement
SELECT
t1.UsageStatsLogDate_Totals
, t1.ADUserNameDisplay_Totals
, t1.CubeCommand_Totals
, t1.SessionsCount
, t1.UsersCount
, t1.CubesCount
-- Fields with NULL in the totals
-- , t1.CubeCommandNEW
-- , t1.ADUserNameDisplayNEW
-- , t1.UsageStatsLogDate
FROM
olap.vwUsageStatsLogSessionsRollup t1
WHERE
(
--t1.UsageStatsLogDate BETWEEN @varStartDate AND @varEndDate
t1.UsageStatsLogDate BETWEEN '1900-01-01' AND '2100-01-01'
OR t1.UsageStatsLogDate IS NULL
)
AND
(
@paramDateTotalExcluded=0
OR (@paramDateTotalExcluded=1 AND UsageStatsLogDate_Totals NOT LIKE '%TOTAL-%')
)
AND
(
@paramDateTotalExcluded=0
OR (@paramUserTotalExcluded=1 AND ADUserNameDisplay_Totals NOT LIKE '%TOTAL-%')
)
AND
(
@paramCubeTotalExcluded=0
OR (@paramCubeTotalExcluded=1 AND CubeCommand_Totals NOT LIKE '%TOTAL-%')
)
ORDER BY
t1.UsageStatsLogDate DESC
, t1.ADUserNameDisplayNEW
, t1.CubeCommandNEW
END
GO
You could also use jOOL library - https://github.com/jOOQ/jOOL
It has already prepared function interfaces with different number of parameters. For instance, you could use org.jooq.lambda.function.Function3
, etc from Function0
up to Function16
.
It seems that you can't do all this in a trigger. According to the documentation:
Within a stored function or trigger, it is not permitted to modify a table that is already being used (for reading or writing) by the statement that invoked the function or trigger.
According to this answer, it seems that you should:
create a stored procedure, that inserts into/Updates the target table, then updates the other row(s), all in a transaction.
With a stored proc you'll manually commit the changes (insert and update). I haven't done this in MySQL, but this post looks like a good example.
In my case, Filezilla sends the AWS ppk file to every other FTP server I try to securely connect to.
That's crazy. There's a workaround as written below but it's ugly.
It does not behave well as @Lucio M pointed out.
From this discussion: https://forum.filezilla-project.org/viewtopic.php?t=30605
n0lqu:
Agreed. However, given I can't control the operation of the server, is there any way to specify within FileZilla that a site should authenticate with a password rather than key, or vice-versa? Or tell it to try password first, then key only if password fails? It appears to me it's trying key first, and then not getting a chance to try password.
botg(Filezilla admin) replied:
There's no such option.
n0lqu:
Could such an option be added, or are there any good workarounds anyone can recommend? Right now, the only workaround I know is to delete the key from general preferences, add it back only when connecting to the specific site that requires it, then deleting it again when done so it doesn't mess up other sites.
botg:
Right now you could have two FileZilla instances with separate config dirs (e. g. one installed and one portable).
timboskratch:
I just had this same issue today and managed to resolve it by changing the "logon type" of the connection using a password in the site manager. Instead of "Normal" I could select either "Interactive" or "Ask for Password" (not really sure what the difference is) and then when I tried to connect to the site again it gave me a prompt to enter my password and then connected successfully. It's not ideal as it means you have to remember and re-type you password every time you connect, but better than having to install 2 instances of FileZilla. I totally agree that it would be very useful in the Site Manager to have full options of how you would like FileZilla to connect to each site which is set up (whether to use a password, key, etc.) Hope this is helpful! Tim
Also see: https://forum.filezilla-project.org/viewtopic.php?t=34676
So, it seems:
For multiple FTP sites with keys / passwords, use multiple Filezilla installs, OR, use the same ppk key for all servers.
I wish there was a way to tell FileZilla which ppk is for which site in Site Manger
I had a very strange bug. Apparently my launch image source was only set for debug configuration and not release. This resulted in my launch screen appearing when running debug configuration, but when I changed to release I just got a black screen.
I fixed this when I changed my build configuration to release the Launch Image Source button appeared and I had to choose Use Asset Catalog again.
For those who are curious, this is what my project.pbxproj looked like.
...
...
...
XXXXXXXXXXXXXXXXXXXXXXXX /* Release */ = {
isa = XCBuildConfiguration;
buildSettings = {
ALWAYS_SEARCH_USER_PATHS = NO;
ASSETCATALOG_COMPILER_APPICON_NAME = AppIcon;
ASSETCATALOG_COMPILER_LAUNCHIMAGE_NAME = LaunchImage; <---THIS LINE WAS MISSING
...
...
...
If you need to manipulate it on the client side, you can't use the Visible property on the server side. Instead, set its CSS display style to "none". For example:
<asp:Label runat="server" id="Label1" style="display: none;" />
Then, you could make it visible on the client side with:
document.getElementById('Label1').style.display = 'inherit';
You could make it hidden again with:
document.getElementById('Label1').style.display = 'none';
Keep in mind that there may be issues with the ClientID being more complex than "Label1" in practice. You'll need to use the ClientID with getElementById, not the server side ID, if they differ.
For .gz files, recursively scan all files and directories Change file type or put *
find . -name \*.gz -print0 | xargs -0 zgrep "STRING"
You can set tag of the button and access it from sender in action
[btnHome addTarget:self action:@selector(btnMenuClicked:) forControlEvents:UIControlEventTouchUpInside];
btnHome.userInteractionEnabled = YES;
btnHome.tag = 123;
In the called function
-(void)btnMenuClicked:(id)sender
{
[sender tag];
if ([sender tag] == 123) {
// Do Anything
}
}
And what about this?
public static IEnumerable<Product> GetAllProducts()
{
using (AdventureWorksEntities db = new AdventureWorksEntities())
{
var products = from product in db.Product
select product;
return products.ToList();
}
}
I guess this is much cleaner. I do not have VS2008 at hand to check, though. In any case, if Products implements IEnumerable (as it seems to - it is used in a foreach statement), I'd return it directly.
Bootstrap 2.x
You could create a new CSS class such as:
.img-center {margin:0 auto;}
And then, add this to each IMG:
<img src="images/2.png" class="img-responsive img-center">
OR, just override the .img-responsive
if you're going to center all images..
.img-responsive {margin:0 auto;}
Demo: http://bootply.com/86123
Bootstrap 3.x
EDIT - With the release of Bootstrap 3.0.1, the center-block
class can now be used without any additional CSS..
<img src="images/2.png" class="img-responsive center-block">
Bootstrap 4
In Bootstrap 4, the mx-auto
class (auto x-axis margins) can be used to center images that are display:block
. However, img is display:inline
by default so text-center
can be used on the parent.
<div class="container">
<div class="row">
<div class="col-12">
<img class="mx-auto d-block" src="//placehold.it/200">
</div>
</div>
<div class="row">
<div class="col-12 text-center">
<img src="//placehold.it/200">
</div>
</div>
</div>
you need to take out the quotes:
soda = a + b
(You want to refer to the variables a
and b
, not the strings "a" and "b")
I faced the same issue with grpc module and in my case, I was using electron and have set a wrong electron version in the env variable "export npm_config_target=1.2.3", setting it to the electron version I am using resolved the issue on my end. Hope this helps someone who set env variables as given here (https://electronjs.org/docs/tutorial/using-native-node-modules#the-npm-way)
Just to add on to the topic of for in/for/$.each, I added a jsperf test case for using $.each vs for in: http://jsperf.com/each-vs-for-in/2
Different browsers/versions handle it differently, but it seems $.each and straight out for in are the cheapest options performance-wise.
If you're using for in to iterate through an associative array/object, knowing what you're after and ignoring everything else, use $.each if you use jQuery, or just for in (and then a break; once you've reached what you know should be the last element)
If you're iterating through an array to perform something with each key pair in it, should use the hasOwnProperty method if you DON'T use jQuery, and use $.each if you DO use jQuery.
Always use for(i=0;i<o.length;i++)
if you don't need an associative array though... lol chrome performed that 97% faster than a for in or $.each
You have a scope problem indeed, because statement
is a local method variable defined here:
protected void createContents() {
...
Statement statement = null; // local variable
...
btnInsert.addMouseListener(new MouseAdapter() { // anonymous inner class
@Override
public void mouseDown(MouseEvent e) {
...
try {
statement.executeUpdate(query); // local variable out of scope here
} catch (SQLException e1) {
e1.printStackTrace();
}
...
});
}
When you try to access this variable inside mouseDown()
method you are trying to access a local variable from within an anonymous inner class and the scope is not enough. So it definitely must be final
(which given your code is not possible) or declared as a class member so the inner class can access this statement
variable.
Sources:
Make statement
a class member instead of a local variable:
public class A1 { // Note Java Code Convention, also class name should be meaningful
private Statement statement;
...
}
Define another final variable and use this one instead, as suggested by @HotLicks:
protected void createContents() {
...
Statement statement = null;
try {
statement = connect.createStatement();
final Statement innerStatement = statement;
} catch (SQLException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
...
}
Reconsider your approach. If statement
variable won't be used until btnInsert
button is pressed then it doesn't make sense to create a connection before this actually happens. You could use all local variables like this:
btnInsert.addMouseListener(new MouseAdapter() {
@Override
public void mouseDown(MouseEvent e) {
try {
Class.forName("com.mysql.jdbc.Driver");
try (Connection connect = DriverManager.getConnection(...);
Statement statement = connect.createStatement()) {
// execute the statement here
} catch (SQLException ex) {
ex.printStackTrace();
}
} catch (ClassNotFoundException ex) {
e.printStackTrace();
}
});
Messing around & found this CSS seems to contain the SVG in Chrome browser up to the point where the container is larger than the image:
div.inserted-svg-logo svg { max-width:100%; }
Also seems to be working in FF + IE 11.
Just a bit from me to very good readers:
#!/bin/bash -e
docker build -t smpp-gateway smpp
(if [ $(docker ps -a | grep smpp-gateway | cut -d " " -f1) ]; then \
echo $(docker rm -f smpp-gateway); \
else \
echo OK; \
fi;);
docker run --restart always -d --network="host" --name smpp-gateway smpp-gateway:latest
docker logs --tail 50 --follow --timestamps smpp-gateway
sudo docker exec -it \
$(sudo docker ps | grep "smpp-gateway:latest" | cut -d " " -f1) \
/bin/bash
It may not be quite what you want, since it's not a standard command on anyone's systems, but since my program should work fine on POSIX systems (if compiled), I'll mention it anyway. If you have the ability to compile or add programs on the machine in question, it should work.
I've used it without issue for about a year now, but it could be that it won't handle some edge cases. Most specifically, I have no idea what it would do with newlines in strings; a case for \\n
might need to be added. This list of characters is not authoritative, but I believe it covers everything else.
I wrote this specifically as a 'helper' program so I could make a wrapper for things like scp
commands.
It can likely be implemented as a shell function as well
I therefore present escapify.c
. I use it like so:
scp user@host:"$(escapify "/this/path/needs to be escaped/file.c")" destination_file.c
PLEASE NOTE: I made this program for my own personal use. It also will (probably wrongly) assume that if it is given more than one argument that it should just print an unescaped space and continue on. This means that it can be used to pass multiple escaped arguments correctly, but could be seen as unwanted behavior by some.
#include <stdio.h>
#include <string.h>
#include <stdlib.h>
int main(int argc, char **argv)
{
char c='\0';
int i=0;
int j=1;
/* do not care if no args passed; escaped nothing is still nothing. */
if(argc < 2)
{
return 0;
}
while(j<argc)
{
while(i<strlen(argv[j]))
{
c=argv[j][i];
/* this switch has no breaks on purpose. */
switch(c)
{
case ';':
case '\'':
case ' ':
case '!':
case '"':
case '#':
case '$':
case '&':
case '(':
case ')':
case '|':
case '*':
case ',':
case '<':
case '>':
case '[':
case ']':
case '\\':
case '^':
case '`':
case '{':
case '}':
putchar('\\');
default:
putchar(c);
}
i++;
}
j++;
if(j<argc) {
putchar(' ');
}
i=0;
}
/* newline at end */
putchar ('\n');
return 0;
}
You can use lodash, download here (4.17.15)
Example code:
var object = [{ 'x': 1, 'y': 2 }, { 'x': 2, 'y': 1 }, { 'x': 1, 'y': 2 }];
_.uniqWith(object, _.isEqual);
// => [{ 'x': 1, 'y': 2 }, { 'x': 2, 'y': 1 }]
Either modify the pattern beforehand so that it only matches the entire string:
var r = /^a$/
or check afterward whether the pattern matched the whole string:
function matchExact(r, str) {
var match = str.match(r);
return match && str === match[0];
}
If you are using Angular 1.x you can include a directive that will allow you to fallback to any number of images. The fallback attribute supports a single url, multiple urls inside an array, or an angular expression using scope data:
<img ng-src="myFirstImage.png" fallback="'fallback1.png'" />
<img ng-src="myFirstImage.png" fallback="['fallback1.png', 'fallback2.png']" />
<img ng-src="myFirstImage.png" fallback="myData.arrayOfImagesToFallbackTo" />
Add a new fallback directive to your angular app module:
angular.module('app.services', [])
.directive('fallback', ['$parse', function ($parse) {
return {
restrict: 'A',
link: function (scope, element, attrs) {
var errorCount = 0;
// Hook the image element error event
angular.element(element).bind('error', function (err) {
var expressionFunc = $parse(attrs.fallback),
expressionResult,
imageUrl;
expressionResult = expressionFunc(scope);
if (typeof expressionResult === 'string') {
// The expression result is a string, use it as a url
imageUrl = expressionResult;
} else if (typeof expressionResult === 'object' && expressionResult instanceof Array) {
// The expression result is an array, grab an item from the array
// and use that as the image url
imageUrl = expressionResult[errorCount];
}
// Increment the error count so we can keep track
// of how many images we have tried
errorCount++;
angular.element(element).attr('src', imageUrl);
});
}
};
}])
I have removed the scope and then used a maven update to solve this problem.
<dependency>
<groupId>javax.servlet</groupId>
<artifactId>jstl</artifactId>
<version>1.2</version>
**<!-- <scope>provided</scope> -->**
</dependency>
The jstl lib is not present in the tomcat lib folder.So we have to include it. I don't understand why we are told to keep both servlet-api and jstl's scope as provided.
I'd just like to add, and please correct me if I'm wrong, that when I embed the HTML5 version of the videos, it doesn't play ads on top.
Not sure if this will ever change. They're probably just trying to work out the best way to show ads on the HTML5 player.
If you want to prevent the user from adding anything, but provide them with the ability to erase characters:
<input value="CAN'T ADD TO THIS" maxlength="0" />
_x000D_
Setting the maxlength
attribute of an input to "0"
makes it so that the user is unable to add content, but still erase content as they wish.
<input value="THIS IS READONLY" onkeydown="return false" />
_x000D_
Setting the onkeydown
attribute to return false
makes the input ignore user keypresses on it, thus preventing them from changing or affecting the value.
// The interface
interface Blah {
void something();
}
...
// Something that expects an object implementing that interface
void chewOnIt(Blah b) {
b.something();
}
...
// Let's provide an object of an anonymous class
chewOnIt(
new Blah() {
@Override
void something() { System.out.println("Anonymous something!"); }
}
);
First I think int&const icr=i;
is just int& icr = i
, Modifier 'const' makes no sense(It just means you cannot make the reference refer to other variable).
const int x = 10;
// int& const y = x; // Compiler error here
Second, constant reference just means you cannot change the value of variable through reference.
const int x = 10;
const int& y = x;
//y = 20; // Compiler error here
Third, Constant references can bind right-value. Compiler will create a temp variable to bind the reference.
float x = 10;
const int& y = x;
const int& z = y + 10;
cout << (long long)&x << endl; //print 348791766212
cout << (long long)&y << endl; //print 348791766276
cout << (long long)&z << endl; //print 348791766340
For those who came here looking for a find and remove an object from an array:
Swift 1
if let index = find(itemList, item) {
itemList.removeAtIndex(index)
}
Swift 2
if let index = itemList.indexOf(item) {
itemList.removeAtIndex(index)
}
Swift 3, 4
if let index = itemList.index(of: item) {
itemList.remove(at: index)
}
Swift 5.2
if let index = itemList.firstIndex(of: item) {
itemList.remove(at: index)
}
You want to use strcmp() == 0
to compare strings instead of a simple ==
, which will just compare if the pointers are the same (which they won't be in this case).
args[i]
is a pointer to a string (a pointer to an array of chars null terminated), as is "&"
or "<"
.
The expression argc[i] == "&"
checks if the two pointers are the same (point to the same memory location).
The expression strcmp( argc[i], "&") == 0
will check if the contents of the two strings are the same.
I have a simpler solution. In your destination page (irc_online.php) add an auto-refresh tag in the header.
SOAP -> SOAP(Simple object access protocal) is the application level protocal created for machine to machine interaction. Protocol defines standard rules. All the parties who are using the particular protocol should adhere to the protocol rules. Like TCP, It unwinds at transport layer, The SOAP protocol will be understood by Application layer( any application which supports SOAP - Axis2, .Net).
WSDL -> SOAP message consist of SoapEnevelope->SoapHeader and SoapBody. It doesn't define what would be message format? what are all the transports(HTTP,JMS) it supports? without this info, It is hard for any client who wants to consume the particular web service to construct the SOAP message. Even if they do, they won't be sure, it'll work all the time. WSDL is the rescue. WSDL (Web Service description Language) defines the operations, message formats and transport details for the SOAP message.
REST -> REST(Representational state transfer) is based on the Transport. Unlike SOAP which targets the actions, REST concerns more on the resources. REST locates the resources by using URL (example -http://{serverAddress}/employees/employeeNumber/12345) and it depends on the transport protocol( with HTTP - GET,POST, PUT, DELETE,...) for the actions to be performed on the resources. The REST service locates the resource based on the URL and perform the action based on the transport action verb. It is more of architectural style and conventions based.
Android Studio 1.2.2 on Mac OS 10.10 Same problem as others have reported. I closed Android Studio, then checked from command line in terminal:
ps -efw|grep -i android
This reported a java process (.gradle/daemon) associated with Android Studio. I killed this process, restarted Android Studio, and the problem went away.
Steps to analyze crash report from apple:
Copy the release .app file which was pushed to the appstore, the .dSYM file that was created at the time of release and the crash report receive from APPLE into a FOLDER.
OPEN terminal application and go to the folder created above (using cd
command)
Run atos -arch armv7 -o APPNAME.app/APPNAME MEMORY_LOCATION_OF_CRASH
. The memory location should be the one at which the app crashed as per the report.
Ex: atos -arch armv7 -o 'APPNAME.app'/'APPNAME' 0x0003b508
This would show you the exact line, method name which resulted in crash.
Ex: [classname functionName:]; -510
Symbolicating IPA
if we use IPA for symbolicating - just rename the extention .ipa with .zip , extract it then we can get a Payload Folder which contain app. In this case we don't need .dSYM file.
Note
This can only work if the app binary does not have symbols stripped. By default release builds stripped the symbols. We can change it in project build settings "Strip Debug Symbols During Copy" to NO.
More details see this post
For beginners: To create your .bash_profile
file in your home directory on MacOS, run:
nano ~/.bash_profile
Then you can paste in the following:
https://gist.github.com/mocon/0baf15e62163a07cb957888559d1b054
As you can see, it includes some example aliases and an environment variable at the bottom.
One you're done making your changes, follow the instructions at the bottom of the Nano editor window to WriteOut (Ctrl-O
) and Exit (Ctrl-X
). Then quit your Terminal and reopen it, and you will be able to use your newly defined aliases and environment variables.
I found this article and tried the tutorial. Basically, you can use the date constructor to parse a date, then write get the seconds from the getTime()
method
var d=new Date("October 13, 1975 11:13:00");
document.write(d.getTime() + " milliseconds since 1970/01/01");
Does this work?
You can check that theHref
is defined by checking against undefined.
if (undefined !== theHref && theHref.length) {
// `theHref` is not undefined and has truthy property _length_
// do stuff
} else {
// do other stuff
}
If you want to also protect yourself against falsey values like null
then check theHref
is truthy, which is a little shorter
if (theHref && theHref.length) {
// `theHref` is truthy and has truthy property _length_
}
I had similar problem with my "Xiaomi Redmi Note 4" and tried almost 10 solutions I found over internet, but none of them helped my case. I've posted this answer to help someones like myself.
Installing "Intel USB Driver for Android Devices" totally solved my problem. It's described completely here.
</html>
<head>
<title>Nick Benvenuti</title>
<link rel="icon" href="img/xicon.jpg" type="image/x-icon/">
<link rel="stylesheet" href="CSS/main.css">
<link rel="stylesheet" href="CSS/normalize.css">
<script src="JS/jquery-1.12.0.min.js" type="text/javascript"></script>
</head>
<body>
<div id="phplogger">
<script type="text/javascript">
function tester() {
window.location.href="admin.php";
}
function phpshower() {
document.getElementById("phplogger").classList.toggle('shower');
document.getElementById("phplogger").classList.remove('hider');
}
function phphider() {
document.getElementById("phplogger").classList.toggle('hider');
document.getElementById("phplogger").classList.remove('shower');
}
</script>
<?php
//if "login" variable is filled out, send email
if (isset($_REQUEST['login'])) {
//Login info
$passbox = $_REQUEST['login'];
$password = 'blahblahyoudontneedtoknowmypassword';
//Login
if($passbox == $password) {
//Login response
echo "<script text/javascript> phphider(); </script>";
}
}
?>
<div align="center" margin-top="50px">
<h1>Administrative Access Only</h1>
<h2>Log In:</h2>
<form method="post">
Password: <input name="login" type="text" /><br />
<input type="submit" value="Login" id="submit-button" />
</form>
</div>
</div>
<div align="center">
<p>Welcome to the developers and admins page!</p>
</div>
</body>
</html>
Basically what I did here is make a page all in one php file where when you enter the password if its right it will hide the password screen and bring the stuff that protected forward. and then heres the css which is a crucial part because it makes the classes that hide and show the different parts of the page.
/*PHP CONTENT STARTS HERE*/
.hider {
visibility:hidden;
display:none;
}
.shower {
visibility:visible;
}
#phplogger {
background-color:#333;
color:blue;
position:absolute;
height:100%;
width:100%;
margin:0;
top:0;
bottom:0;
}
/*PHP CONTENT ENDS HERE*/
I would recommend using the BasicPlayerAPI. It's open source, very simple and it doesn't require JavaFX. http://www.javazoom.net/jlgui/api.html
After downloading and extracting the zip-file one should add the following jar-files to the build path of the project:
Here is a minimalistic usage example:
String songName = "HungryKidsofHungary-ScatteredDiamonds.mp3";
String pathToMp3 = System.getProperty("user.dir") +"/"+ songName;
BasicPlayer player = new BasicPlayer();
try {
player.open(new URL("file:///" + pathToMp3));
player.play();
} catch (BasicPlayerException | MalformedURLException e) {
e.printStackTrace();
}
Required imports:
import java.net.MalformedURLException;
import java.net.URL;
import javazoom.jlgui.basicplayer.BasicPlayer;
import javazoom.jlgui.basicplayer.BasicPlayerException;
That's all you need to start playing music. The Player is starting and managing his own playback thread and provides play, pause, resume, stop and seek functionality.
For a more advanced usage you may take a look at the jlGui Music Player. It's an open source WinAmp clone: http://www.javazoom.net/jlgui/jlgui.html
The first class to look at would be PlayerUI (inside the package javazoom.jlgui.player.amp). It demonstrates the advanced features of the BasicPlayer pretty well.
Following example for getting first character from a string might help someone
string anyNameForString = "" + stringVariableName[0];
I just run npm install
and then ok.
None of the above answers (or any of the dozens of answers I saw elsewhere) worked for me when using brew with the most recent version of mysql and yosemite. I ended up installing a different mysql version via brew.
Specifying an older version by saying (for example)
brew install mysql56
Worked for me. Hope this helps someone. This was a frustrating problem that I felt like I was stuck on forever.
This did the trick for me. It captures all the stdout output from the subprocess(For python 3.8):
from subprocess import check_output, STDOUT
cmd = "Your Command goes here"
try:
cmd_stdout = check_output(cmd, stderr=STDOUT, shell=True).decode()
except Exception as e:
print(e.output.decode()) # print out the stdout messages up to the exception
print(e) # To print out the exception message
You want to count the number of itemids in your array. Simply use:
int counter=list.size();
Less code increases efficiency. Do not re-invent the wheel...
In boto 3, the 'Key.set_contents_from_' methods were replaced by
For example:
import boto3
some_binary_data = b'Here we have some data'
more_binary_data = b'Here we have some more data'
# Method 1: Object.put()
s3 = boto3.resource('s3')
object = s3.Object('my_bucket_name', 'my/key/including/filename.txt')
object.put(Body=some_binary_data)
# Method 2: Client.put_object()
client = boto3.client('s3')
client.put_object(Body=more_binary_data, Bucket='my_bucket_name', Key='my/key/including/anotherfilename.txt')
Alternatively, the binary data can come from reading a file, as described in the official docs comparing boto 2 and boto 3:
Storing Data
Storing data from a file, stream, or string is easy:
# Boto 2.x from boto.s3.key import Key key = Key('hello.txt') key.set_contents_from_file('/tmp/hello.txt') # Boto 3 s3.Object('mybucket', 'hello.txt').put(Body=open('/tmp/hello.txt', 'rb'))
RMDIR [/S] [/Q] [drive:]path
RD [/S] [/Q] [drive:]path
/S
Removes all directories and files in the specified directory in addition to the directory itself. Used to remove a directory tree.
/Q
Quiet mode, do not ask if ok to remove a directory tree with /S
If using Xcode 4.2 or higher, try the following:
Click your Project name (in the left column), followed by the Target:
Click the 'Build Settings' tab (in the right column):
Click the 'Release' or 'Distribution' row under 'Architectures', and choose 'Other...':
Double click the highlighted row named '$(ARCHS_STANDARD_32_BIT)' in the popover that appears, and replace it by typing 'armv6'. Then add a new row with the plus button in the bottom left of the popover, and type 'armv7', then click Done:
Update: you should add armv7s to target the iPhone 5 as well. (And drop armv6 if building with Xcode 4.5 or higher, which no longer supports armv6.)
That's it. You should now be able to build/archive without generating errors.
If it still doesn't work, see this answer from justinxreese, which suggests adding entries for armv6 and armv7 under "Required Device Capabilities" in your info.plist file.
As of 5.5 you can run Kernel > Restart and Run All
What is a monkey patch?
Simply put, monkey patching is making changes to a module or class while the program is running.
There's an example of monkey-patching in the Pandas documentation:
import pandas as pd
def just_foo_cols(self):
"""Get a list of column names containing the string 'foo'
"""
return [x for x in self.columns if 'foo' in x]
pd.DataFrame.just_foo_cols = just_foo_cols # monkey-patch the DataFrame class
df = pd.DataFrame([list(range(4))], columns=["A","foo","foozball","bar"])
df.just_foo_cols()
del pd.DataFrame.just_foo_cols # you can also remove the new method
To break this down, first we import our module:
import pandas as pd
Next we create a method definition, which exists unbound and free outside the scope of any class definitions (since the distinction is fairly meaningless between a function and an unbound method, Python 3 does away with the unbound method):
def just_foo_cols(self):
"""Get a list of column names containing the string 'foo'
"""
return [x for x in self.columns if 'foo' in x]
Next we simply attach that method to the class we want to use it on:
pd.DataFrame.just_foo_cols = just_foo_cols # monkey-patch the DataFrame class
And then we can use the method on an instance of the class, and delete the method when we're done:
df = pd.DataFrame([list(range(4))], columns=["A","foo","foozball","bar"])
df.just_foo_cols()
del pd.DataFrame.just_foo_cols # you can also remove the new method
If you're using name-mangling (prefixing attributes with a double-underscore, which alters the name, and which I don't recommend) you'll have to name-mangle manually if you do this. Since I don't recommend name-mangling, I will not demonstrate it here.
How can we use this knowledge, for example, in testing?
Say we need to simulate a data retrieval call to an outside data source that results in an error, because we want to ensure correct behavior in such a case. We can monkey patch the data structure to ensure this behavior. (So using a similar method name as suggested by Daniel Roseman:)
import datasource
def get_data(self):
'''monkey patch datasource.Structure with this to simulate error'''
raise datasource.DataRetrievalError
datasource.Structure.get_data = get_data
And when we test it for behavior that relies on this method raising an error, if correctly implemented, we'll get that behavior in the test results.
Just doing the above will alter the Structure
object for the life of the process, so you'll want to use setups and teardowns in your unittests to avoid doing that, e.g.:
def setUp(self):
# retain a pointer to the actual real method:
self.real_get_data = datasource.Structure.get_data
# monkey patch it:
datasource.Structure.get_data = get_data
def tearDown(self):
# give the real method back to the Structure object:
datasource.Structure.get_data = self.real_get_data
(While the above is fine, it would probably be a better idea to use the mock
library to patch the code. mock
's patch
decorator would be less error prone than doing the above, which would require more lines of code and thus more opportunities to introduce errors. I have yet to review the code in mock
but I imagine it uses monkey-patching in a similar way.)
Use the following in the function you will call and it will work just fine.
[a b c] = yourfunction(optional)
%your code
a = 5;
b = 7;
c = 10;
return
end
This is a way to call the function both from another function and from the command terminal
[aa bb cc] = yourfunction(optional);
The variables aa, bb and cc now hold the return variables.
A workaround for this would be to have a variable get the current working directory. Then you can cd out of it to do whatever, then when you need it, you can cd back in.
i.e.
oldpath=`pwd` #do whatever your script does ... ... ... # go back to the dir you wanted to pushd cd $oldpath
Just create a .bat file with the line
hostname
in it. That's it. Windows also supports the hostname command.
Look here.
Basically you have to do bind params:
$sql = "SELECT username FROM users WHERE locationid IN (SELECT locationid FROM locations WHERE countryid=?)";
$this->db->query($sql, '__COUNTRY_NAME__');
But, like Mr.E said, use joins:
$sql = "select username from users inner join locations on users.locationid = locations.locationid where countryid = ?";
$this->db->query($sql, '__COUNTRY_NAME__');
You can use grep
:
grep -o "+\S\+" in.txt | tr '\n' ','
which finds the string starting with +
, followed by any string \S\+
, then convert new line characters into commas. This should be pretty quick for large files.
I had to include double quotes with the table name.
db=> \d
List of relations
Schema | Name | Type | Owner
--------+-----------------------------------------------+-------+-------
public | COMMONDATA_NWCG_AGENCIES | table | dan
...
db=> \d COMMONDATA_NWCG_AGENCIES
Did not find any relation named "COMMONDATA_NWCG_AGENCIES".
???
Double quotes:
db=> \d "COMMONDATA_NWCG_AGENCIES"
Table "public.COMMONDATA_NWCG_AGENCIES"
Column | Type | Collation | Nullable | Default
--------------------------+-----------------------------+-----------+----------+---------
ID | integer | | not null |
...
Lots and lots of double quotes:
db=> select ID from COMMONDATA_NWCG_AGENCIES limit 1;
ERROR: relation "commondata_nwcg_agencies" does not exist
LINE 1: select ID from COMMONDATA_NWCG_AGENCIES limit 1;
^
db=> select ID from "COMMONDATA_NWCG_AGENCIES" limit 1;
ERROR: column "id" does not exist
LINE 1: select ID from "COMMONDATA_NWCG_AGENCIES" limit 1;
^
db=> select "ID" from "COMMONDATA_NWCG_AGENCIES" limit 1;
ID
----
1
(1 row)
This is postgres 11. The CREATE TABLE statements from this dump had double quotes as well:
DROP TABLE IF EXISTS "COMMONDATA_NWCG_AGENCIES";
CREATE TABLE "COMMONDATA_NWCG_AGENCIES" (
...
Other answers are suggesting to change ownerships or permissions of system directories to a specific user. I highly disadvise from doing so, this can become very awkward and might mess up the entire system!
Here is a more generic and safer approach that supports multi-user as well.
Create a new group for node-users and add the required users to this group. Then set the ownership of node-dependant files/directories to this group.
# Create new group
sudo groupadd nodegrp
# Add user to group (logname is a variable and gets replaced by the currently logged in user)
sudo usermod -a -G nodegrp `logname`
# Instant access to group without re-login
newgrp nodegrp
# Check group - nodegrp should be listed as well now
groups
# Change group of node_modules, node, npm to new group
sudo chgrp -R nodegrp /usr/lib/node_modules/
sudo chgrp nodegrp /usr/bin/node
sudo chgrp nodegrp /usr/bin/npm
# (You may want to change a couple of more files (like grunt etc) in your /usr/bin/ directory.)
Now you can easily install your modules as user
npm install -g generator-angular
Some modules (grunt, bower, yo etc.) will still need to be installed as root. This is because they create symlinks in /user/bin/.
Edit
3 years later I'd recommend to use Node Version Manager. It safes you a lot of time and trouble.
Just want to share what worked on my end, in case it would be able to help someone else too. Alternatively based on Paty Lustosa's answer above, please allow me to add another approach derived from this site where he used an ajax approach for the source method
http://salman-w.blogspot.ca/2013/12/jquery-ui-autocomplete-examples.html#example-3
The kicker is the resulting "string" or json format from your php script (listing.php below) that derives the result set to be shown in the autocomplete field should follow something like this:
{"list":[
{"value": 1, "label": "abc"},
{"value": 2, "label": "def"},
{"value": 3, "label": "ghi"}
]}
Then on the source portion of the autocomplete method:
source: function(request, response) {
$.getJSON("listing.php", {
term: request.term
}, function(data) {
var array = data.error ? [] : $.map(data.list, function(m) {
return {
label: m.label,
value: m.value
};
});
response(array);
});
},
select: function (event, ui) {
$("#autocomplete_field").val(ui.item.label); // display the selected text
$("#field_id").val(ui.item.value); // save selected id to hidden input
return false;
}
Hope this helps... all the best!
Instead of
background-repeat-x: no-repeat;
background-repeat-y: no-repeat;
which is not correct, use
background-repeat: no-repeat;
You can change the format too by doing this
string fecha = DateTime.Now.ToString(format:"dd-MM-yyyy");
// this change the "/"
for the "-"
Why would UPDLOCK block selects? The Lock Compatibility Matrix clearly shows N
for the S/U and U/S contention, as in No Conflict.
As for the HOLDLOCK hint the documentation states:
HOLDLOCK: Is equivalent to SERIALIZABLE. For more information, see SERIALIZABLE later in this topic.
...
SERIALIZABLE: ... The scan is performed with the same semantics as a transaction running at the SERIALIZABLE isolation level...
and the Transaction Isolation Level topic explains what SERIALIZABLE means:
No other transactions can modify data that has been read by the current transaction until the current transaction completes.
Other transactions cannot insert new rows with key values that would fall in the range of keys read by any statements in the current transaction until the current transaction completes.
Therefore the behavior you see is perfectly explained by the product documentation:
SELECT * FROM dbo.Test WITH (UPDLOCK) WHERE ...
The real question is what are you trying to achieve? Playing with lock hints w/o an absolute complete 110% understanding of the locking semantics is begging for trouble...
After OP edit:
I would like to select rows from a table and prevent the data in that table from being modified while I am processing it.
The you should use one of the higher transaction isolation levels. REPEATABLE READ will prevent the data you read from being modified. SERIALIZABLE will prevent the data you read from being modified and new data from being inserted. Using transaction isolation levels is the right approach, as opposed to using query hints. Kendra Little has a nice poster exlaining the isolation levels.
For next examples assumed that you use C++11. Example with ranged-based for loops:
for (auto &attack : m_attack) // access by reference to avoid copying
{
if (attack->m_num == input)
{
attack->makeDamage();
}
}
You should use const auto &attack
depending on the behavior of makeDamage()
.
You can use std::for_each
from standard library + lambdas:
std::for_each(m_attack.begin(), m_attack.end(),
[](Attack * attack)
{
if (attack->m_num == input)
{
attack->makeDamage();
}
}
);
If you are uncomfortable using std::for_each
, you can loop over m_attack
using iterators:
for (auto attack = m_attack.begin(); attack != m_attack.end(); ++attack)
{
if (attack->m_num == input)
{
attack->makeDamage();
}
}
Use m_attack.cbegin()
and m_attack.cend()
to get const
iterators.
With all the solutions above even though you're hiding the code, you'll still get the [<matplotlib.lines.Line2D at 0x128514278>]
crap above your figure which you probably don't want.
If you actually want to get rid of the input rather than just hiding it, I think
the cleanest solution is to save your figures to disk in hidden cells, and then just including the images in Markdown cells using e.g. ![Caption](figure1.png)
.
Another way to achieve this in Apache is by putting the following lines in .htaccess
in the root folder of your website (or in Apache's config files).
BrowserMatch "MSIE" isIE
BrowserMatch "Trident" isIE
Header set X-UA-Compatible "IE=edge" env=isIE
This requires that you have the mod_headers
and mod_setenvif
modules enabled.
The extra HTTP header only gets sent to IE browsers, and none of the others.
"[a-zA-Z]"
matches only one character. To match multiple characters, use "[a-zA-Z]+"
.
Since a dot is a joker for any character, you have to mask it: "abc\."
To make the dot optional, you need a question mark:
"abc\.?"
If you write the Pattern as literal constant in your code, you have to mask the backslash:
System.out.println ("abc".matches ("abc\\.?"));
System.out.println ("abc.".matches ("abc\\.?"));
System.out.println ("abc..".matches ("abc\\.?"));
Combining both patterns:
System.out.println ("abc.".matches ("[a-zA-Z]+\\.?"));
Instead of a-zA-Z, \w is often more appropriate, since it captures foreign characters like äöüßø and so on:
System.out.println ("abc.".matches ("\\w+\\.?"));
This is more advice than a specific answer, but my suggestion is to convert dates to date variables immediately, rather than keeping them as strings. This way you can use date (and time) functions on them, rather than trying to use very troublesome workarounds.
As pointed out, the lubridate package has nice extraction functions.
For some projects, I have found that piecing dates out from the start is helpful: create year, month, day (of month) and day (of week) variables to start with. This can simplify summaries, tables and graphs, because the extraction code is separate from the summary/table/graph code, and because if you need to change it, you don't have to roll out those changes in multiple spots.
Localstorage is designed to be accessible by javascript, so it doesn't provide any XSS protection. As mentioned in other answers, there is a bunch of possible ways to do an XSS attack, from which localstorage is not protected by default.
However, cookies have security flags which protect from XSS and CSRF attacks. HttpOnly flag prevents client side javascript from accessing the cookie, Secure flag only allows the browser to transfer the cookie through ssl, and SameSite flag ensures that the cookie is sent only to the origin. Although I just checked and SameSite is currently supported only in Opera and Chrome, so to protect from CSRF it's better to use other strategies. For example, sending an encrypted token in another cookie with some public user data.
So cookies are a more secure choice for storing authentication data.
<select class="form-control" name='someting' [ngModel]="selectedWorkout" (ngModelChange)="updateWorkout($event)">
<option value="{{workout.name}}" *ngFor="#workout of workouts">{{workout.name}}</option>
</select>
If you are using form there should be name
field inside select
tag.
All you need to do is just add value
to the option
tag.
selectedWorkout
value should be "back" , and its done.
In 2.5, theres no way to suppress it, other than measures like not giving users write access to the directory.
In python 2.6 and 3.0 however, there may be a setting in the sys module called "dont_write_bytecode" that can be set to suppress this. This can also be set by passing the "-B" option, or setting the environment variable "PYTHONDONTWRITEBYTECODE"
Copying to the clipboard is a tricky task to do in Javascript in terms of browser compatibility. The best way to do it is using a small flash. It will work on every browser. You can check it in this article.
Here's how to do it for Internet Explorer:
function copy (str)
{
//for IE ONLY!
window.clipboardData.setData('Text',str);
}
A height of 100% for is, presumably, the height of your browser's inner window, because that is the height of its parent, the page. An auto
height will be the minimum height of necessary to contain .
Try if this works:
FileStream filestream = new FileStream("out.txt", FileMode.Create);
var streamwriter = new StreamWriter(filestream);
streamwriter.AutoFlush = true;
Console.SetOut(streamwriter);
Console.SetError(streamwriter);
See the thumbnail function of PIL's Image Module. You can use it to save smaller versions of files as various filetypes and if you're wanting to preserve as much quality as you can, consider using the ANTIALIAS
filter when you do.
Other than that, I'm not sure if there's a way to specify a maximum desired size. You could, of course, write a function that might try saving multiple versions of the file at varying qualities until a certain size is met, discarding the rest and giving you the image you wanted.
Add this WRITE_EXTERNAL_STORAGE permission to your applications manifest.
<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
package="your.company.package"
android:versionCode="1"
android:versionName="0.1">
<application android:icon="@drawable/icon" android:label="@string/app_name">
<!-- ... -->
</application>
<uses-sdk android:minSdkVersion="7" />
<uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE" />
</manifest>
You should always check for availability first. A snippet from the official android documentation on external storage.
boolean mExternalStorageAvailable = false;
boolean mExternalStorageWriteable = false;
String state = Environment.getExternalStorageState();
if (Environment.MEDIA_MOUNTED.equals(state)) {
// We can read and write the media
mExternalStorageAvailable = mExternalStorageWriteable = true;
} else if (Environment.MEDIA_MOUNTED_READ_ONLY.equals(state)) {
// We can only read the media
mExternalStorageAvailable = true;
mExternalStorageWriteable = false;
} else {
// Something else is wrong. It may be one of many other states, but all we need
// to know is we can neither read nor write
mExternalStorageAvailable = mExternalStorageWriteable = false;
}
At last but not least forget about the FileOutputStream
and use a FileWriter
instead. More information on that class form the FileWriter javadoc. You'll might want to add some more error handling here to inform the user.
// get external storage file reference
FileWriter writer = new FileWriter(getExternalStorageDirectory());
// Writes the content to the file
writer.write("This\n is\n an\n example\n");
writer.flush();
writer.close();
You can actually provide implementations of pure virtual functions in C++. The only difference is all pure virtual functions must be implemented by derived classes before the class can be instantiated.
Use raw_input()
instead of input()
:
testVar = raw_input("Ask user for something.")
input()
actually evaluates the input as Python code. I suggest to never use it. raw_input()
returns the verbatim string entered by the user.
I'm using Visual Studio 2015, and I've found that the first thing to do is look in the build output.
I found this error reported there:
Reading build config file: \build.json... SyntaxError: Unexpected token
The solution for that was to remove the bom from the build.json file
Then I hit a second problem - with this message in the build output:
FAILURE: Build failed with an exception. * What went wrong: A problem was found with the configuration of task ':packageRelease'.
File 'C:\Users\Colin\etc' specified for property 'signingConfig.storeFile' is not a file.
Easily solved by putting the correct filename into the keystore property
Through trial and error, it seems if the user was originally created "without login" then this query
select * from sys.database_principals
will show authentication_type = 0 (NONE).
Apparently these users cannot be re-linked to any login (pre-existing or new, SQL or Windows) since this command:
alter user [TempUser] with login [TempLogin]
responds with the Remap Error "Msg 33016" shown in the question.
Also these users do not show up in classic (deprecating) SP report:
exec sp_change_users_login 'Report'
If anyone knows a way around this or how to change authentication_type, please comment.
For iOS 13.6
Go to settings -> General -> Device Management -> Click on Trust « Apple Development » -> Click on the red trust button and you’re all set! Enjoy
$files = glob($_SERVER["DOCUMENT_ROOT"]."/myFolder/*");
There is a Headers
property in the HttpRequestMessage
class. You can add custom headers there, which will be sent with each HTTP request. The DefaultRequestHeaders
in the HttpClient
class, on the other hand, sets headers to be sent with each request sent using that client object, hence the name Default Request Headers.
Hope this makes things more clear, at least for someone seeing this answer in future.
Apple switched their default shell to zsh, so the config files include ~/.zshenv
and ~/.zshrc
. This is just like ~/.bashrc
, but for zsh. Just edit the file and add what you need; it should be sourced every time you open a new terminal window:
nano ~/.zshenv
alias py=python
Then do ctrl+x, y, then enter to save.
This file seems to be executed no matter what (login, non-login, or script), so seems better than the ~/.zshrc
file.
The default shell is bash, and you can edit the file ~/.bash_profile
and add aliases:
nano ~/.bash_profile
alias py=python
Then ctrl+x, y, and enter to save. See this post for more on these configs. It's a little better to set it up with your alias in ~/.bashrc
, then source ~/.bashrc
from ~/.bash_profile
. In ~/.bash_profile
it would then look like:
source ~/.bashrc
This solution is specific for laravel 5.5
You have to change permissions to a few folders: chmod -R -777 storage/logs chmod -R -777 storage/framework for the above folders 775 or 765 did not work for my project
chmod -R 775 bootstrap/cache
Also the ownership of the project folder should be as follows (current user):(web server user)
To understand the name: A stack trace is a a list of Exceptions( or you can say a list of "Cause by"), from the most surface Exception(e.g. Service Layer Exception) to the deepest one (e.g. Database Exception). Just like the reason we call it 'stack' is because stack is First in Last out (FILO), the deepest exception was happened in the very beginning, then a chain of exception was generated a series of consequences, the surface Exception was the last one happened in time, but we see it in the first place.
Key 1:A tricky and important thing here need to be understand is : the deepest cause may not be the "root cause", because if you write some "bad code", it may cause some exception underneath which is deeper than its layer. For example, a bad sql query may cause SQLServerException connection reset in the bottem instead of syndax error, which may just in the middle of the stack.
-> Locate the root cause in the middle is your job.
Key 2:Another tricky but important thing is inside each "Cause by" block, the first line was the deepest layer and happen first place for this block. For instance,
Exception in thread "main" java.lang.NullPointerException
at com.example.myproject.Book.getTitle(Book.java:16)
at com.example.myproject.Author.getBookTitles(Author.java:25)
at com.example.myproject.Bootstrap.main(Bootstrap.java:14)
Book.java:16 was called by Auther.java:25 which was called by Bootstrap.java:14, Book.java:16 was the root cause. Here attach a diagram sort the trace stack in chronological order.
If you have custom attributes in appsetting. move your
<configSections>
</configSections>
tag to the first child in the <confuguration>
.
Here are some examples:
> z$mean <- rowMeans(subset(z, select = c(x, y)), na.rm = TRUE)
> z
w x y mean
1 5 1 1 1
2 6 2 2 2
3 7 3 3 3
4 8 4 NA 4
weighted mean
> z$y <- rev(z$y)
> z
w x y mean
1 5 1 NA 1
2 6 2 3 2
3 7 3 2 3
4 8 4 1 4
>
> weight <- c(1, 2) # x * 1/3 + y * 2/3
> z$wmean <- apply(subset(z, select = c(x, y)), 1, function(d) weighted.mean(d, weight, na.rm = TRUE))
> z
w x y mean wmean
1 5 1 NA 1 1.000000
2 6 2 3 2 2.666667
3 7 3 2 3 2.333333
4 8 4 1 4 2.000000
You should define the attributes of option
like selected="selected"
<select>
<option selected="selected">a</option>
<option>b</option>
<option>c</option>
</select>
In the example a string is executed as code using the exec function.
import sys
import StringIO
# create file-like string to capture output
codeOut = StringIO.StringIO()
codeErr = StringIO.StringIO()
code = """
def f(x):
x = x + 1
return x
print 'This is my output.'
"""
# capture output and errors
sys.stdout = codeOut
sys.stderr = codeErr
exec code
# restore stdout and stderr
sys.stdout = sys.__stdout__
sys.stderr = sys.__stderr__
print f(4)
s = codeErr.getvalue()
print "error:\n%s\n" % s
s = codeOut.getvalue()
print "output:\n%s" % s
codeOut.close()
codeErr.close()
void foo(void);
That is the correct way to say "no parameters" in C, and it also works in C++.
But:
void foo();
Means different things in C and C++! In C it means "could take any number of parameters of unknown types", and in C++ it means the same as foo(void)
.
Variable argument list functions are inherently un-typesafe and should be avoided where possible.
See: http://www.postgresql.org/docs/9.1/static/arrays.html
If your non-native driver still does not allow you to pass arrays, then you can:
pass a string representation of an array (which your stored procedure can then parse into an array -- see string_to_array
)
CREATE FUNCTION my_method(TEXT) RETURNS VOID AS $$
DECLARE
ids INT[];
BEGIN
ids = string_to_array($1,',');
...
END $$ LANGUAGE plpgsql;
then
SELECT my_method(:1)
with :1 = '1,2,3,4'
rely on Postgres itself to cast from a string to an array
CREATE FUNCTION my_method(INT[]) RETURNS VOID AS $$
...
END $$ LANGUAGE plpgsql;
then
SELECT my_method('{1,2,3,4}')
choose not to use bind variables and issue an explicit command string with all parameters spelled out instead (make sure to validate or escape all parameters coming from outside to avoid SQL injection attacks.)
CREATE FUNCTION my_method(INT[]) RETURNS VOID AS $$
...
END $$ LANGUAGE plpgsql;
then
SELECT my_method(ARRAY [1,2,3,4])
Yes. You should add this file to your version control system, i.e. You should commit it.
This file is intended to be committed into source repositories
You can read more about what it is/what it does here:
package-lock.json is automatically generated for any operations where npm modifies either the node_modules tree, or package.json. It describes the exact tree that was generated, such that subsequent installs are able to generate identical trees, regardless of intermediate dependency updates.
That you are running Windows. Read:
http://en.wikipedia.org/wiki/Sudo
It basically allows you to execute an application with elevated privileges. If you want to achieve a similar effect under Windows, open an administrative prompt and execute your command from there. Under Vista, this is easily done by opening the shortcut while holding Ctrl+Shift at the same time.
That being said, it might very well be possible that your account already has sufficient privileges, depending on how your OS is setup, and the Windows version used.
Use \n
for a line break and \t
if you want to insert a tab.
You can also use some XML tags for basic formatting: <b>
for bold text, <i>
for italics, and <u>
for underlined text.
Other formatting options are shown in this article on the Android Developers' site:
https://developer.android.com/guide/topics/resources/string-resource.html#FormattingAndStyling
My answer to the original question and to anyone else that may have this problem:
I was having this same problem, images in my app that people saved to the SD card were not showing up in their Gallery immediately. After some searching I found this one line of code inserted after my 'save to sdcard' code that fixed the problem:
sendBroadcast(new Intent(Intent.ACTION_MEDIA_MOUNTED, Uri.parse("file://"+ Environment.getExternalStorageDirectory())));
If you want a version that raises an error:
"string to search".index("needle")
If you want a version that returns -1:
"string to search".find("needle")
This is more efficient than the 'in' syntax
It would work as given below :
insert into Gengl_Del Select Tdate,DocNo,Book,GlCode,OpGlcode,Amt,Narration
from Gengl where BOOK='" & lblBook.Caption & "' AND DocNO=" & txtVno.Text & ""
java.lang.NoSuchMethodError: javax.servlet.ServletContext.getContextPath()Ljava/lang/String;
That method was added in Servlet 2.5.
So this problem can have at least 3 causes:
web.xml
is not declared conform Servlet 2.5 or newer.To solve it,
web.xml
complies Servlet 2.5 (or newer, at least the highest whatever your target runtime supports). For an example, see also somewhere halfway our servlets wiki page.servlet-api.jar
or j2ee.jar
in /WEB-INF/lib
or even worse, the JRE/lib
or JRE/lib/ext
. They do not belong there. This is a pretty common beginner's mistake in an attempt to circumvent compilation errors in an IDE, see also How do I import the javax.servlet API in my Eclipse project?.In Python 3.x, 5 / 2
will return 2.5
and 5 // 2
will return 2
. The former is floating point division, and the latter is floor division, sometimes also called integer division.
In Python 2.2 or later in the 2.x line, there is no difference for integers unless you perform a from __future__ import division
, which causes Python 2.x to adopt the 3.x behavior.
Regardless of the future import, 5.0 // 2
will return 2.0
since that's the floor division result of the operation.
You can find a detailed description at https://docs.python.org/whatsnew/2.2.html#pep-238-changing-the-division-operator
There are three basic types of join:
INNER
join compares two tables and only returns results where a match exists. Records from the 1st table are duplicated when they match multiple results in the 2nd. INNER joins tend to make result sets smaller, but because records can be duplicated this isn't guaranteed.CROSS
join compares two tables and return every possible combination of rows from both tables. You can get a lot of results from this kind of join that might not even be meaningful, so use with caution.OUTER
join compares two tables and returns data when a match is available or NULL values otherwise. Like with INNER join, this will duplicate rows in the one table when it matches multiple records in the other table. OUTER joins tend to make result sets larger, because they won't by themselves remove any records from the set. You must also qualify an OUTER join to determine when and where to add the NULL values:
LEFT
means keep all records from the 1st table no matter what and insert NULL values when the 2nd table doesn't match. RIGHT
means the opposite: keep all records from the 2nd table no matter what and insert NULL values whent he 1st table doesn't match. FULL
means keep all records from both tables, and insert a NULL value in either table if there is no match.Often you see will the OUTER
keyword omitted from the syntax. Instead it will just be "LEFT JOIN", "RIGHT JOIN", or "FULL JOIN". This is done because INNER and CROSS joins have no meaning with respect to LEFT, RIGHT, or FULL, and so these are sufficient by themselves to unambiguously indicate an OUTER join.
Here is an example of when you might want to use each type:
INNER
: You want to return all records from the "Invoice" table, along with their corresponding "InvoiceLines". This assumes that every valid Invoice will have at least one line.OUTER
: You want to return all "InvoiceLines" records for a particular Invoice, along with their corresponding "InventoryItem" records. This is a business that also sells service, such that not all InvoiceLines will have an IventoryItem.CROSS
: You have a digits table with 10 rows, each holding values '0' through '9'. You want to create a date range table to join against, so that you end up with one record for each day within the range. By CROSS-joining this table with itself repeatedly you can create as many consecutive integers as you need (given you start at 10 to 1st power, each join adds 1 to the exponent). Then use the DATEADD() function to add those values to your base date for the range.Here is a Date Prototype method written in typescript:
Date.prototype.isBetween = isBetween;
interface Date { isBetween: typeof isBetween }
function isBetween(minDate: Date, maxDate: Date): boolean {
if (!this.getTime) throw new Error('isBetween() was called on a non Date object');
return !minDate ? true : this.getTime() >= minDate.getTime()
&& !maxDate ? true : this.getTime() <= maxDate.getTime();
};
Try This it helped me without changing theme . Put Your AppBarLayout inside any layout.Hope this will help you
<RelativeLayout
android:layout_width="match_parent"
android:layout_height="wrap_content">
<android.support.design.widget.AppBarLayout
android:id="@+id/app_bar"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:fitsSystemWindows="false"
android:theme="@style/ThemeOverlay.AppCompat.Dark.ActionBar">
<android.support.v7.widget.Toolbar
android:id="@+id/toolbar"
android:layout_width="match_parent"
app:popupTheme="@style/ThemeOverlay.AppCompat.Light"
android:layout_height="?attr/actionBarSize"
android:background="@color/white">
<ImageView
android:src="@drawable/go_grocery_logo"
android:layout_width="108dp"
android:layout_height="32dp" />
</android.support.v7.widget.Toolbar>
</android.support.design.widget.AppBarLayout>
</RelativeLayout>
Use master.dbo.fn_varbintohexsubstring(0, HashBytes('SHA1', @input), 1, 0)
instead of master.dbo.fn_varbintohexstr
and then substringing
the result.
In fact fn_varbintohexstr
calls fn_varbintohexsubstring
internally. The first argument of fn_varbintohexsubstring
tells it to add 0xF
as the prefix or not. fn_varbintohexstr
calls fn_varbintohexsubstring
with 1
as the first argument internaly.
Because you don't need 0xF
, call fn_varbintohexsubstring
directly.
function el(id) {
return document.getElementById(id);
}
if (el('one') || el('two') || el('three')) {
alert('yes');
} else if (el('four')) {
alert('no');
}
The easiest way to output a single character is to simply use the putchar
function. After all, that's it's sole purpose and it cannot do anything else. It cannot be simpler than that.
Here's a simple css only solution, that creates a consistent target area, and lets you style your faux elements however you like.
The basic idea is this:
Here's the jsfiddle: http://jsfiddle.net/gwwar/nFLKU/
<form>
<input id="faux" type="text" placeholder="Upload a file from your computer" />
<a href="#" id="browse">Browse </a>
<div id="wrapper">
<input id="input" size="100" type="file" />
</div>
</form>
The answer by Jared Forsyth is horribly wrong and outdated. It follows a whole set of antipatterns such as usage of stopPropagation
, initializing state from props, usage of jQuery, nested objects in state and has some odd dragging
state field. If being rewritten, the solution will be the following, but it still forces virtual DOM reconciliation on every mouse move tick and is not very performant.
UPD. My answer was horribly wrong and outdated. Now the code alleviates issues of slow React component lifecycle by using native event handlers and style updates, uses transform
as it doesn't lead to reflows, and throttles DOM changes through requestAnimationFrame
. Now it's consistently 60 FPS for me in every browser I tried.
const throttle = (f) => {
let token = null, lastArgs = null;
const invoke = () => {
f(...lastArgs);
token = null;
};
const result = (...args) => {
lastArgs = args;
if (!token) {
token = requestAnimationFrame(invoke);
}
};
result.cancel = () => token && cancelAnimationFrame(token);
return result;
};
class Draggable extends React.PureComponent {
_relX = 0;
_relY = 0;
_ref = React.createRef();
_onMouseDown = (event) => {
if (event.button !== 0) {
return;
}
const {scrollLeft, scrollTop, clientLeft, clientTop} = document.body;
// Try to avoid calling `getBoundingClientRect` if you know the size
// of the moving element from the beginning. It forces reflow and is
// the laggiest part of the code right now. Luckily it's called only
// once per click.
const {left, top} = this._ref.current.getBoundingClientRect();
this._relX = event.pageX - (left + scrollLeft - clientLeft);
this._relY = event.pageY - (top + scrollTop - clientTop);
document.addEventListener('mousemove', this._onMouseMove);
document.addEventListener('mouseup', this._onMouseUp);
event.preventDefault();
};
_onMouseUp = (event) => {
document.removeEventListener('mousemove', this._onMouseMove);
document.removeEventListener('mouseup', this._onMouseUp);
event.preventDefault();
};
_onMouseMove = (event) => {
this.props.onMove(
event.pageX - this._relX,
event.pageY - this._relY,
);
event.preventDefault();
};
_update = throttle(() => {
const {x, y} = this.props;
this._ref.current.style.transform = `translate(${x}px, ${y}px)`;
});
componentDidMount() {
this._ref.current.addEventListener('mousedown', this._onMouseDown);
this._update();
}
componentDidUpdate() {
this._update();
}
componentWillUnmount() {
this._ref.current.removeEventListener('mousedown', this._onMouseDown);
this._update.cancel();
}
render() {
return (
<div className="draggable" ref={this._ref}>
{this.props.children}
</div>
);
}
}
class Test extends React.PureComponent {
state = {
x: 100,
y: 200,
};
_move = (x, y) => this.setState({x, y});
// you can implement grid snapping logic or whatever here
/*
_move = (x, y) => this.setState({
x: ~~((x - 5) / 10) * 10 + 5,
y: ~~((y - 5) / 10) * 10 + 5,
});
*/
render() {
const {x, y} = this.state;
return (
<Draggable x={x} y={y} onMove={this._move}>
Drag me
</Draggable>
);
}
}
ReactDOM.render(
<Test />,
document.getElementById('container'),
);
and a bit of CSS
.draggable {
/* just to size it to content */
display: inline-block;
/* opaque background is important for performance */
background: white;
/* avoid selecting text while dragging */
user-select: none;
}
If your slices were of the same size, it would work:
arr := []int{1, 2, 3}
tmp := []int{0, 0, 0}
i := copy(tmp, arr)
fmt.Println(i)
fmt.Println(tmp)
fmt.Println(arr)
Would give:
3
[1 2 3]
[1 2 3]
From "Go Slices: usage and internals":
The copy function supports copying between slices of different lengths (it will copy only up to the smaller number of elements)
The usual example is:
t := make([]byte, len(s), (cap(s)+1)*2)
copy(t, s)
s = t
FOR XML PATH might not work on Microsoft Azure Synapse Serve. A possible alternative, following @Taryn dynamic generated cols approach, same results is obtained by using STRING_AGG.
DECLARE @cols AS NVARCHAR(MAX), @query AS NVARCHAR(MAX)
SELECT @cols = STRING_AGG(QUOTENAME(c.phaseid),', ')
/*OPTIONAL: within group (order by cast(t1.[FLOW_SP_SLPM] as INT) asc)*/
FROM (SELECT phaseid FROM temp
GROUP BY phaseid) c
set @query = 'SELECT elementid,' + @cols + ' from
(
select elementid,
phaseid,
effort
from temp
) x
PIVOT
(
max(effort)
for phaseid in (' + @cols + ')
) p '
execute(@query)
EDIT:
The gcc guys really improved the diagnosis experience in gcc (ah competition). They created a wiki page to showcase it here. gcc 4.8 now has quite good diagnostics as well (gcc 4.9x added color support). Clang is still in the lead, but the gap is closing.
Original:
For students, I would unconditionally recommend Clang.
The performance in terms of generated code between gcc and Clang is now unclear (though I think that gcc 4.7 still has the lead, I haven't seen conclusive benchmarks yet), but for students to learn it does not really matter anyway.
On the other hand, Clang's extremely clear diagnostics are definitely easier for beginners to interpret.
Consider this simple snippet:
#include <string>
#include <iostream>
struct Student {
std::string surname;
std::string givenname;
}
std::ostream& operator<<(std::ostream& out, Student const& s) {
return out << "{" << s.surname << ", " << s.givenname << "}";
}
int main() {
Student me = { "Doe", "John" };
std::cout << me << "\n";
}
You'll notice right away that the semi-colon is missing after the definition of the Student
class, right :) ?
Well, gcc notices it too, after a fashion:
prog.cpp:9: error: expected initializer before ‘&’ token
prog.cpp: In function ‘int main()’:
prog.cpp:15: error: no match for ‘operator<<’ in ‘std::cout << me’
/usr/lib/gcc/i686-pc-linux-gnu/4.3.4/include/g++-v4/ostream:112: note: candidates are: std::basic_ostream<_CharT, _Traits>& std::basic_ostream<_CharT, _Traits>::operator<<(std::basic_ostream<_CharT, _Traits>& (*)(std::basic_ostream<_CharT, _Traits>&)) [with _CharT = char, _Traits = std::char_traits<char>]
/usr/lib/gcc/i686-pc-linux-gnu/4.3.4/include/g++-v4/ostream:121: note: std::basic_ostream<_CharT, _Traits>& std::basic_ostream<_CharT, _Traits>::operator<<(std::basic_ios<_CharT, _Traits>& (*)(std::basic_ios<_CharT, _Traits>&)) [with _CharT = char, _Traits = std::char_traits<char>]
/usr/lib/gcc/i686-pc-linux-gnu/4.3.4/include/g++-v4/ostream:131: note: std::basic_ostream<_CharT, _Traits>& std::basic_ostream<_CharT, _Traits>::operator<<(std::ios_base& (*)(std::ios_base&)) [with _CharT = char, _Traits = std::char_traits<char>]
/usr/lib/gcc/i686-pc-linux-gnu/4.3.4/include/g++-v4/ostream:169: note: std::basic_ostream<_CharT, _Traits>& std::basic_ostream<_CharT, _Traits>::operator<<(long int) [with _CharT = char, _Traits = std::char_traits<char>]
/usr/lib/gcc/i686-pc-linux-gnu/4.3.4/include/g++-v4/ostream:173: note: std::basic_ostream<_CharT, _Traits>& std::basic_ostream<_CharT, _Traits>::operator<<(long unsigned int) [with _CharT = char, _Traits = std::char_traits<char>]
/usr/lib/gcc/i686-pc-linux-gnu/4.3.4/include/g++-v4/ostream:177: note: std::basic_ostream<_CharT, _Traits>& std::basic_ostream<_CharT, _Traits>::operator<<(bool) [with _CharT = char, _Traits = std::char_traits<char>]
/usr/lib/gcc/i686-pc-linux-gnu/4.3.4/include/g++-v4/bits/ostream.tcc:97: note: std::basic_ostream<_CharT, _Traits>& std::basic_ostream<_CharT, _Traits>::operator<<(short int) [with _CharT = char, _Traits = std::char_traits<char>]
/usr/lib/gcc/i686-pc-linux-gnu/4.3.4/include/g++-v4/ostream:184: note: std::basic_ostream<_CharT, _Traits>& std::basic_ostream<_CharT, _Traits>::operator<<(short unsigned int) [with _CharT = char, _Traits = std::char_traits<char>]
/usr/lib/gcc/i686-pc-linux-gnu/4.3.4/include/g++-v4/bits/ostream.tcc:111: note: std::basic_ostream<_CharT, _Traits>& std::basic_ostream<_CharT, _Traits>::operator<<(int) [with _CharT = char, _Traits = std::char_traits<char>]
/usr/lib/gcc/i686-pc-linux-gnu/4.3.4/include/g++-v4/ostream:195: note: std::basic_ostream<_CharT, _Traits>& std::basic_ostream<_CharT, _Traits>::operator<<(unsigned int) [with _CharT = char, _Traits = std::char_traits<char>]
/usr/lib/gcc/i686-pc-linux-gnu/4.3.4/include/g++-v4/ostream:204: note: std::basic_ostream<_CharT, _Traits>& std::basic_ostream<_CharT, _Traits>::operator<<(long long int) [with _CharT = char, _Traits = std::char_traits<char>]
/usr/lib/gcc/i686-pc-linux-gnu/4.3.4/include/g++-v4/ostream:208: note: std::basic_ostream<_CharT, _Traits>& std::basic_ostream<_CharT, _Traits>::operator<<(long long unsigned int) [with _CharT = char, _Traits = std::char_traits<char>]
/usr/lib/gcc/i686-pc-linux-gnu/4.3.4/include/g++-v4/ostream:213: note: std::basic_ostream<_CharT, _Traits>& std::basic_ostream<_CharT, _Traits>::operator<<(double) [with _CharT = char, _Traits = std::char_traits<char>]
/usr/lib/gcc/i686-pc-linux-gnu/4.3.4/include/g++-v4/ostream:217: note: std::basic_ostream<_CharT, _Traits>& std::basic_ostream<_CharT, _Traits>::operator<<(float) [with _CharT = char, _Traits = std::char_traits<char>]
/usr/lib/gcc/i686-pc-linux-gnu/4.3.4/include/g++-v4/ostream:225: note: std::basic_ostream<_CharT, _Traits>& std::basic_ostream<_CharT, _Traits>::operator<<(long double) [with _CharT = char, _Traits = std::char_traits<char>]
/usr/lib/gcc/i686-pc-linux-gnu/4.3.4/include/g++-v4/ostream:229: note: std::basic_ostream<_CharT, _Traits>& std::basic_ostream<_CharT, _Traits>::operator<<(const void*) [with _CharT = char, _Traits = std::char_traits<char>]
/usr/lib/gcc/i686-pc-linux-gnu/4.3.4/include/g++-v4/bits/ostream.tcc:125: note: std::basic_ostream<_CharT, _Traits>& std::basic_ostream<_CharT, _Traits>::operator<<(std::basic_streambuf<_CharT, _Traits>*) [with _CharT = char, _Traits = std::char_traits<char>]
And Clang is not exactly starring here either, but still:
/tmp/webcompile/_25327_1.cc:9:6: error: redefinition of 'ostream' as different kind of symbol
std::ostream& operator<<(std::ostream& out, Student const& s) {
^
In file included from /tmp/webcompile/_25327_1.cc:1:
In file included from /usr/include/c++/4.3/string:49:
In file included from /usr/include/c++/4.3/bits/localefwd.h:47:
/usr/include/c++/4.3/iosfwd:134:33: note: previous definition is here
typedef basic_ostream<char> ostream; ///< @isiosfwd
^
/tmp/webcompile/_25327_1.cc:9:13: error: expected ';' after top level declarator
std::ostream& operator<<(std::ostream& out, Student const& s) {
^
;
2 errors generated.
I purposefully choose an example which triggers an unclear error message (coming from an ambiguity in the grammar) rather than the typical "Oh my god Clang read my mind" examples. Still, we notice that Clang avoids the flood of errors. No need to scare students away.
To achieve that, I suggest you to use AngularJS Environment Plugin: https://www.npmjs.com/package/angular-environment
Here's an example:
angular.module('yourApp', ['environment']).
config(function(envServiceProvider) {
// set the domains and variables for each environment
envServiceProvider.config({
domains: {
development: ['localhost', 'dev.local'],
production: ['acme.com', 'acme.net', 'acme.org']
// anotherStage: ['domain1', 'domain2'],
// anotherStage: ['domain1', 'domain2']
},
vars: {
development: {
apiUrl: '//localhost/api',
staticUrl: '//localhost/static'
// antoherCustomVar: 'lorem',
// antoherCustomVar: 'ipsum'
},
production: {
apiUrl: '//api.acme.com/v2',
staticUrl: '//static.acme.com'
// antoherCustomVar: 'lorem',
// antoherCustomVar: 'ipsum'
}
// anotherStage: {
// customVar: 'lorem',
// customVar: 'ipsum'
// }
}
});
// run the environment check, so the comprobation is made
// before controllers and services are built
envServiceProvider.check();
});
And then, you can call the variables from your controllers such as this:
envService.read('apiUrl');
Hope it helps.
Sure it's possible... use Export Wizard in source option use SQL SERVER NATIVE CLIENT 11, later your source server ex.192.168.100.65\SQLEXPRESS next step select your new destination server ex.192.168.100.65\SQL2014
Just be sure to be using correct instance and connect each other
Just pay attention in Stored procs must be recompiled
I was able to use Joey's Answer to create a function:
Use it as:
@echo off
SETLOCAL ENABLEDELAYEDEXPANSION
SET "MYTEXT=jump over the chair"
echo !MYTEXT!
call:ReplaceText "!MYTEXT!" chair table RESULT
echo !RESULT!
GOTO:EOF
And these Functions to the bottom of your Batch File.
:FUNCTIONS
@REM FUNCTIONS AREA
GOTO:EOF
EXIT /B
:ReplaceText
::Replace Text In String
::USE:
:: CALL:ReplaceText "!OrginalText!" OldWordToReplace NewWordToUse Result
::Example
::SET "MYTEXT=jump over the chair"
:: echo !MYTEXT!
:: call:ReplaceText "!MYTEXT!" chair table RESULT
:: echo !RESULT!
::
:: Remember to use the "! on the input text, but NOT on the Output text.
:: The Following is Wrong: "!MYTEXT!" !chair! !table! !RESULT!
:: ^^Because it has a ! around the chair table and RESULT
:: Remember to add quotes "" around the MYTEXT Variable when calling.
:: If you don't add quotes, it won't treat it as a single string
::
set "OrginalText=%~1"
set "OldWord=%~2"
set "NewWord=%~3"
call set OrginalText=%%OrginalText:!OldWord!=!NewWord!%%
SET %4=!OrginalText!
GOTO:EOF
And remember you MUST add "SETLOCAL ENABLEDELAYEDEXPANSION" to the top of your batch file or else none of this will work properly.
SETLOCAL ENABLEDELAYEDEXPANSION
@REM # Remember to add this to the top of your batch file.
If you're supporting API 11 or higher, you can just use the following XML attribute:
android:rotation="90"
It might not display correctly in Android Studio xml preview, but it works as expected.
Maybe this code helps:
var chunk_size = 10;_x000D_
var arr = [1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16,17];_x000D_
var groups = arr.map( function(e,i){ _x000D_
return i%chunk_size===0 ? arr.slice(i,i+chunk_size) : null; _x000D_
}).filter(function(e){ return e; });_x000D_
console.log({arr, groups})
_x000D_
The answer given above can't solve my problem.So I change async into false to get the alert message.
jQuery.ajax({
type:"post",
dataType:"json",
async: false,
url: myAjax.ajaxurl,
data: {action: 'submit_data', info: info},
success: function(data) {
alert("Data was succesfully captured");
},
});
This answer will be useful for those who use a non-standard IDE (i.e. Qt Creator).
There are at least two non-intrusive ways to pass additional include paths to Visual Studio's cl.exe
via environment variables:
INCLUDE
environment variable to ;
-separated list of all include paths. It overrides all includes, inclusive standard library ones. Not recommended.CL
environment variable to the following value: /I C:\Lib\VulkanMemoryAllocator\src /I C:\Lib\gli /I C:\Lib\gli\external
, where each argument of /I
key is additional include path.I successfully use the last one.
As a LinearSegmentedColormaps
is based on a dictionary of red, green and blue, it's necessary to reverse each item:
import matplotlib.pyplot as plt
import matplotlib as mpl
def reverse_colourmap(cmap, name = 'my_cmap_r'):
"""
In:
cmap, name
Out:
my_cmap_r
Explanation:
t[0] goes from 0 to 1
row i: x y0 y1 -> t[0] t[1] t[2]
/
/
row i+1: x y0 y1 -> t[n] t[1] t[2]
so the inverse should do the same:
row i+1: x y1 y0 -> 1-t[0] t[2] t[1]
/
/
row i: x y1 y0 -> 1-t[n] t[2] t[1]
"""
reverse = []
k = []
for key in cmap._segmentdata:
k.append(key)
channel = cmap._segmentdata[key]
data = []
for t in channel:
data.append((1-t[0],t[2],t[1]))
reverse.append(sorted(data))
LinearL = dict(zip(k,reverse))
my_cmap_r = mpl.colors.LinearSegmentedColormap(name, LinearL)
return my_cmap_r
See that it works:
my_cmap
<matplotlib.colors.LinearSegmentedColormap at 0xd5a0518>
my_cmap_r = reverse_colourmap(my_cmap)
fig = plt.figure(figsize=(8, 2))
ax1 = fig.add_axes([0.05, 0.80, 0.9, 0.15])
ax2 = fig.add_axes([0.05, 0.475, 0.9, 0.15])
norm = mpl.colors.Normalize(vmin=0, vmax=1)
cb1 = mpl.colorbar.ColorbarBase(ax1, cmap = my_cmap, norm=norm,orientation='horizontal')
cb2 = mpl.colorbar.ColorbarBase(ax2, cmap = my_cmap_r, norm=norm, orientation='horizontal')
EDIT
I don't get the comment of user3445587. It works fine on the rainbow colormap:
cmap = mpl.cm.jet
cmap_r = reverse_colourmap(cmap)
fig = plt.figure(figsize=(8, 2))
ax1 = fig.add_axes([0.05, 0.80, 0.9, 0.15])
ax2 = fig.add_axes([0.05, 0.475, 0.9, 0.15])
norm = mpl.colors.Normalize(vmin=0, vmax=1)
cb1 = mpl.colorbar.ColorbarBase(ax1, cmap = cmap, norm=norm,orientation='horizontal')
cb2 = mpl.colorbar.ColorbarBase(ax2, cmap = cmap_r, norm=norm, orientation='horizontal')
But it especially works nice for custom declared colormaps, as there is not a default _r
for custom declared colormaps. Following example taken from http://matplotlib.org/examples/pylab_examples/custom_cmap.html:
cdict1 = {'red': ((0.0, 0.0, 0.0),
(0.5, 0.0, 0.1),
(1.0, 1.0, 1.0)),
'green': ((0.0, 0.0, 0.0),
(1.0, 0.0, 0.0)),
'blue': ((0.0, 0.0, 1.0),
(0.5, 0.1, 0.0),
(1.0, 0.0, 0.0))
}
blue_red1 = mpl.colors.LinearSegmentedColormap('BlueRed1', cdict1)
blue_red1_r = reverse_colourmap(blue_red1)
fig = plt.figure(figsize=(8, 2))
ax1 = fig.add_axes([0.05, 0.80, 0.9, 0.15])
ax2 = fig.add_axes([0.05, 0.475, 0.9, 0.15])
norm = mpl.colors.Normalize(vmin=0, vmax=1)
cb1 = mpl.colorbar.ColorbarBase(ax1, cmap = blue_red1, norm=norm,orientation='horizontal')
cb2 = mpl.colorbar.ColorbarBase(ax2, cmap = blue_red1_r, norm=norm, orientation='horizontal')
In case you're interested in bundling automatically your scripts separately from vendors ones:
var webpack = require('webpack'),
pkg = require('./package.json'), //loads npm config file
html = require('html-webpack-plugin');
module.exports = {
context : __dirname + '/app',
entry : {
app : __dirname + '/app/index.js',
vendor : Object.keys(pkg.dependencies) //get npm vendors deps from config
},
output : {
path : __dirname + '/dist',
filename : 'app.min-[hash:6].js'
},
plugins: [
//Finally add this line to bundle the vendor code separately
new webpack.optimize.CommonsChunkPlugin('vendor', 'vendor.min-[hash:6].js'),
new html({template : __dirname + '/app/index.html'})
]
};
You can read more about this feature in official documentation.
First try this: dont use the php composer.phar [parameters]
simply use composer [parameters]
if this doesn't work for you than try the rest. Hope it helps.
I was also getting same error when I start first time on laravel + Ubuntu 14.04 I just right click on bootstrap and storage folder >>> properties >>>permission>> Others Access >>> change it to "Create and delete files" Change permission for enclosed files
Thank you
You can try as.vector(t(test))
. Please note that, if you want to do it by columns you should use unlist(test)
.
The one that worked for me and isn't above was Process.GetCurrentProcess().MainModule.FileName
.
You don't need a function for it - simply use the bracket notation:
var side = columns['right'];
This is equal to dot notation, var side = columns.right;
, except the fact that right
could also come from a variable, function return value, etc., when using bracket notation.
If you NEED a function for it, here it is:
function read_prop(obj, prop) {
return obj[prop];
}
To answer some of the comments below that aren't directly related to the original question, nested objects can be referenced through multiple brackets. If you have a nested object like so:
var foo = { a: 1, b: 2, c: {x: 999, y:998, z: 997}};
you can access property x
of c
as follows:
var cx = foo['c']['x']
If a property is undefined, an attempt to reference it will return undefined
(not null
or false
):
foo['c']['q'] === null
// returns false
foo['c']['q'] === false
// returns false
foo['c']['q'] === undefined
// returns true
mysql_connect("localhost", "root", "") or die(mysql_error()) ;
mysql_select_db("altabotanikk") or die(mysql_error()) ;
These are deprecated use the following..
// Connects to your Database
$link = mysqli_connect("localhost", "root", "", "");
and to insert data use the following
$sql = "INSERT INTO Table-Name (Column-Name)
VALUES ('$filename')" ;
Missing square brackets around input property may cause this error. For example:
Component Foo {
@Input()
bars: BarType[];
}
Correct:
<app-foo [bars]="smth"></app-foo>
Incorrect (triggering error):
<app-foo bars="smth"></app-foo>
When I used --allow-unrelated-histories
, this command generated too many conflicts. There were conflicts in files which I didn't even work on. To get over the error " Refusing to merge unrelated histories"
, I used following rebase command:
git pull --rebase=preserve --allow-unrelated-histories
After this commit the uncommitted changes with a commit message. Finally, run the following command:
git rebase --continue
After this, my working copy was up-to-date with the remote copy and I was able to push my changes as before. No more unrelated histories error while pulling.
You need 40 bits to represent the integer literal 600851475143. In Java, the maximum integer value is 2^31-1 however (i.e. integers are 32 bit, see http://download.oracle.com/javase/1.4.2/docs/api/java/lang/Integer.html).
This has nothing to do with function
. Try using a long integer literal instead (as suggested in the other answers).
$(this).parent().parent().attr('id');
Is how you would get the id of the parent's parent.
EDIT:
$(this).closest('ul').attr('id');
Is a more foolproof solution for your case.
You'll need to create an instance of the class and invoke the method on it.
public class Foo
{
public void Data1()
{
}
public static void Data2()
{
Foo foo = new Foo();
foo.Data1();
}
}
Spaces are simply replaced by "%20" like :
Diff command in Unix is used to find the differences between files(all types). Since directory is also a type of file, the differences between two directories can easily be figure out by using diff commands. For more option use man diff on your unix box.
-b Ignores trailing blanks (spaces and tabs)
and treats other strings of blanks as
equivalent.
-i Ignores the case of letters. For example,
`A' will compare equal to `a'.
-t Expands <TAB> characters in output lines.
Normal or -c output adds character(s) to the
front of each line that may adversely affect
the indentation of the original source lines
and make the output lines difficult to
interpret. This option will preserve the
original source's indentation.
-w Ignores all blanks (<SPACE> and <TAB> char-
acters) and treats all other strings of
blanks as equivalent. For example,
`if ( a == b )' will compare equal to
`if(a==b)'.
and there are many more.
If your Local branch and remote branch is the same name then you can just do it:
git push origin branchName
When your local and remote branch name is different then you can just do it:
git push origin localBranchName:remoteBranchName
If you have your navigation <ul>
with class #nav
Then you need to put that <ul>
item within a div container. Make your div container the 100% width. and set the text-align: element to center in the div container. Then in your <ul>
set that class to have 3 particular elements: text-align:center; position: relative; and display: inline-block;
that should center it.
That is why the new __dir__()
method has been added in python 2.6
see:
Here's how
String details = "Hello \"world\"!";
details = details.replace("\"","\\\"");
System.out.println(details); // Hello \"world\"!
Note that strings are immutable, thus it is not sufficient to simply do details.replace("\"","\\\"")
. You must reassign the variable details
to the resulting string.
Using
details = details.replaceAll("\"",""e;");
instead, results in
Hello "e;world"e;!
CR - ASCII code 13
LF - ASCII code 10.
Theoretically CR returns cursor to the first position (on the left). LF feeds one line moving cursor one line down. This is how in old days you controled printers and text-mode monitors. These characters are usually used to mark end of lines in text files. Different operating systems used different conventions. As you pointed out Windows uses CR/LF combination while pre-OSX Macs use just CR and so on.
As far as I'm aware, you've got three options to install zsh on Mac OS X:
./configure
, make
, make install
). You can set custom git aliases using git's config. Here's the syntax:
git config --global alias.<aliasName> "<git command>"
For example, if you need an alias to display a list of files which have merge conflicts, run:
git config --global alias.conflicts "diff --name-only --diff-filter=U"
Now you can use the above command only using "conflicts":
git conflicts
# same as running: git diff --name-only --diff-filter=U
Copy to Config File: /etc/mysql/my.cnf OR /bin/mysql/my.ini
[mysqld]
port = 3306
sql-mode=""
MySQL
restart.
Or you can also do
[mysqld]
port = 3306
SQL_MODE = "NO_AUTO_VALUE_ON_ZERO";
MySQL
restart.
I had to recode like this:
let path = NSBundle.mainBundle().pathForResource("Output_5", ofType: "xml")
let text = try? NSString(contentsOfFile: path! as String, encoding: NSUTF8StringEncoding)
print(text)
I did this:
// Left, top, right, bottom drawables.
Drawable[] drawables = button.getCompoundDrawables();
// get left drawable.
Drawable leftCompoundDrawable = drawables[0];
// get new drawable.
Drawable img = getContext().getResources().getDrawable(R.drawable.ic_launcher);
// set image size (don't change the size values)
img.setBounds(leftCompoundDrawable.getBounds());
// set new drawable
button.setCompoundDrawables(img, null, null, null);
For clarity in this topic, a few points really should be made:
Sharpening images is an ill-posed problem. In other words, blurring is a lossy operation, and going back from it is in general not possible.
To sharpen single images, you need to somehow add constraints (assumptions) on what kind of image it is you want, and how it has become blurred. This is the area of natural image statistics. Approaches to do sharpening hold these statistics explicitly or implicitly in their algorithms (deep learning being the most implicitly coded ones). The common approach of up-weighting some of the levels of a DOG or Laplacian pyramid decomposition, which is the generalization of Brian Burns answer, assumes that a Gaussian blurring corrupted the image, and how the weighting is done is connected to assumptions on what was in the image to begin with.
Other sources of information can render the problem sharpening well-posed. Common such sources of information is video of a moving object, or multi-view setting. Sharpening in that setting is usually called super-resolution (which is a very bad name for it, but it has stuck in academic circles). There has been super-resolution methods in OpenCV since a long time.... although they usually dont work that well for real problems last I checked them out. I expect deep learning has produced some wonderful results here as well. Maybe someone will post in remarks on whats worthwhile out there.
For those very beginners
who has spend few hours for this commit (with comment
and no verify
) with no further issue
git commit -m "Some comments" --no-verify
var arrayCount = [1,2,3,2,5,6,2,8];_x000D_
var co = 0;_x000D_
function findElement(){_x000D_
arrayCount.find(function(value, index) {_x000D_
if(value == 2)_x000D_
co++;_x000D_
});_x000D_
console.log( 'found' + ' ' + co + ' element with value 2');_x000D_
}
_x000D_
I would do something like that:
var arrayCount = [1,2,3,4,5,6,7,8];_x000D_
_x000D_
function countarr(){_x000D_
var dd = 0;_x000D_
arrayCount.forEach( function(s){_x000D_
dd++;_x000D_
});_x000D_
_x000D_
console.log(dd);_x000D_
}
_x000D_
Recent versions of the TortoiseSVN package can install a discrete svn.exe in addition to the one linked into the GUI binary. It is located in the same bin directory where the main program is installed. (If you have already installed TortoiseSVN, then rerun the installer, select Modify, and select command line tools for installation.)
Here are some variations on Sotirios Delimanolis' answer, which was pretty good to begin with (+1). Consider the following:
static <X, Y, Z> Map<X, Z> transform(Map<? extends X, ? extends Y> input,
Function<Y, Z> function) {
return input.keySet().stream()
.collect(Collectors.toMap(Function.identity(),
key -> function.apply(input.get(key))));
}
A couple points here. First is the use of wildcards in the generics; this makes the function somewhat more flexible. A wildcard would be necessary if, for example, you wanted the output map to have a key that's a superclass of the input map's key:
Map<String, String> input = new HashMap<String, String>();
input.put("string1", "42");
input.put("string2", "41");
Map<CharSequence, Integer> output = transform(input, Integer::parseInt);
(There is also an example for the map's values, but it's really contrived, and I admit that having the bounded wildcard for Y only helps in edge cases.)
A second point is that instead of running the stream over the input map's entrySet
, I ran it over the keySet
. This makes the code a little cleaner, I think, at the cost of having to fetch values out of the map instead of from the map entry. Incidentally, I initially had key -> key
as the first argument to toMap()
and this failed with a type inference error for some reason. Changing it to (X key) -> key
worked, as did Function.identity()
.
Still another variation is as follows:
static <X, Y, Z> Map<X, Z> transform1(Map<? extends X, ? extends Y> input,
Function<Y, Z> function) {
Map<X, Z> result = new HashMap<>();
input.forEach((k, v) -> result.put(k, function.apply(v)));
return result;
}
This uses Map.forEach()
instead of streams. This is even simpler, I think, because it dispenses with the collectors, which are somewhat clumsy to use with maps. The reason is that Map.forEach()
gives the key and value as separate parameters, whereas the stream has only one value -- and you have to choose whether to use the key or the map entry as that value. On the minus side, this lacks the rich, streamy goodness of the other approaches. :-)
Since PyYAML's yaml.load()
function parses YAML documents to native Python data structures, you can just access items by key or index. Using the example from the question you linked:
import yaml
with open('tree.yaml', 'r') as f:
doc = yaml.load(f)
To access branch1 text
you would use:
txt = doc["treeroot"]["branch1"]
print txt
"branch1 text"
because, in your YAML document, the value of the branch1
key is under the treeroot
key.
There is also the built in PHP function cal_days_in_month()?
"This function will return the number of days in the month of year for the specified calendar." http://php.net/manual/en/function.cal-days-in-month.
echo cal_days_in_month(CAL_GREGORIAN, 11, 2009);
// = 30
Compact form for short commands (no 'echo'):
IF "%ID%"=="0" ( ... & ... & ... ) ELSE ^
IF "%ID%"=="1" ( ... ) ELSE ^
IF "%ID%"=="2" ( ... ) ELSE ^
REM default case...
After ^
must be an immediate line end, no spaces.
For Oracle SQL, SUBSTR(column_name, -# of characters requested)
will extract last three characters for a given query. e.g.
SELECT SUBSTR(description,-3) FROM student.course;
Take a look at numpy.reshape .
>>> arr = numpy.zeros((50,100,25))
>>> arr.shape
# (50, 100, 25)
>>> new_arr = arr.reshape(5000,25)
>>> new_arr.shape
# (5000, 25)
# One shape dimension can be -1.
# In this case, the value is inferred from
# the length of the array and remaining dimensions.
>>> another_arr = arr.reshape(-1, arr.shape[-1])
>>> another_arr.shape
# (5000, 25)
You can create a delay using the following example
setInterval(function(){alert("Hello")},3000);
Replace 3000 with # of milliseconds
You can place the content of what you want executed inside the function.
Use the TextBox's Exit
event handler:
Private Sub TextBox1_Exit(ByVal Cancel As MSForms.ReturnBoolean)
Logincode_Click
End Sub
In my case I had the same issue on running from eclipse. Just did the following to resolve it: Right Click the Project --> Mavan --> Update Project.
And it worked!
It happens cause of multiple reasons but the answer missing above there's the "className" while extending your controller.
Make sure your class name is the same as your controller name is your controllers. e.g., If your controller name is Settings.php, you must extend the controller like.
class Settings extends CI_Controller
{
// some actions like...
public function __construct(){
// and so and so...
}
}
How would you write this for-each loop a different way so as to not incorporate the ":"?
Assuming that list
is a Collection
instance ...
public String toString() {
String cardString = "";
for (Iterator<PlayingCard> it = this.list.iterator(); it.hasNext(); /**/) {
PlayingCard c = it.next();
cardString = cardString + c + "\n";
}
}
I should add the pedantic point that :
is not an operator in this context. An operator performs an operation in an expression, and the stuff inside the ( ... )
in a for
statement is not an expression ... according to the JLS.
Do not use @@fetch_status - this will return status from the last cursor in the current connection. Use the example below:
declare @sqCur cursor;
declare @data varchar(1000);
declare @i int = 0, @lastNum int, @rowNum int;
set @sqCur = cursor local static read_only for
select
row_number() over (order by(select null)) as RowNum
,Data -- you fields
from YourIntTable
open @cur
begin try
fetch last from @cur into @lastNum, @data
fetch absolute 1 from @cur into @rowNum, @data --start from the beginning and get first value
while @i < @lastNum
begin
set @i += 1
--Do your job here
print @data
fetch next from @cur into @rowNum, @data
end
end try
begin catch
close @cur --|
deallocate @cur --|-remove this 3 lines if you do not throw
;throw --|
end catch
close @cur
deallocate @cur
Here is a general function implementing Henrik's solution on dplyr
0.7.1.
freq_table <- function(x,
group_var,
prop_var) {
group_var <- enquo(group_var)
prop_var <- enquo(prop_var)
x %>%
group_by(!!group_var, !!prop_var) %>%
summarise(n = n()) %>%
mutate(freq = n /sum(n)) %>%
ungroup
}
to force running only one instace of a program in .net (C#) use this code in program.cs file:
public static Process PriorProcess()
// Returns a System.Diagnostics.Process pointing to
// a pre-existing process with the same name as the
// current one, if any; or null if the current process
// is unique.
{
Process curr = Process.GetCurrentProcess();
Process[] procs = Process.GetProcessesByName(curr.ProcessName);
foreach (Process p in procs)
{
if ((p.Id != curr.Id) &&
(p.MainModule.FileName == curr.MainModule.FileName))
return p;
}
return null;
}
and the folowing:
[STAThread]
static void Main()
{
if (PriorProcess() != null)
{
MessageBox.Show("Another instance of the app is already running.");
return;
}
Application.EnableVisualStyles();
Application.SetCompatibleTextRenderingDefault(false);
Application.Run(new Form());
}
You may have a corrupted .9.png in your drawables directory
This can be done without regex
which is more efficient:
var questionText = "1 ding ?"
var index = 0;
var num = "";
do
{
num += questionText[index];
} while (questionText[++index] >= "0" && questionText[index] <= "9");
questionText = questionText.substring(num.length);
And as a bonus, it also stores the number, which may be useful to some people.
Check out shred. It's a node HTTP client created and maintained by spire.io that handles redirects, sessions, and JSON responses. It's great for interacting with rest APIs. See this blog post for more details.
This is a bit outside the scope of your question, but to avoid any potential confusion for readers who are new to VBA: End
and End Sub
are not the same. They don't perform the same task.
End
puts a stop to ALL code execution and you should almost always use Exit Sub
(or Exit Function
, respectively).
End halts ALL exectution. While this sounds tempting to do it also clears all global and static variables. (source)
See also the MSDN dox for the End Statement
When executed, the
End
statement resets allmodule-level variables and all static local variables in allmodules. To preserve the value of these variables, use theStop
statement instead. You can then resume execution while preserving the value of those variables.Note The
End
statement stops code execution abruptly, without invoking the Unload, QueryUnload, or Terminate event, or any other Visual Basic code. Code you have placed in the Unload, QueryUnload, and Terminate events offorms andclass modules is not executed. Objects created from class modules are destroyed, files opened using the Open statement are closed, and memory used by your program is freed. Object references held by other programs are invalidated.
Nor is End Sub
and Exit Sub
the same. End Sub
can't be called in the same way Exit Sub
can be, because the compiler doesn't allow it.
This again means you have to Exit Sub
, which is a perfectly legal operation:
Exit Sub
Immediately exits the Sub procedure in which it appears. Execution continues with the statement following the statement that called the Sub procedure. Exit Sub can be used only inside a Sub procedure.
Additionally, and once you get the feel for how procedures work, obviously, End Sub
does not clear any global variables. But it does clear local (Dim'd) variables:
End Sub
Terminates the definition of this procedure.
You have to parse the string as JSON (data[0] == "["
is an indication that data
is actually a string, not an object):
data = $.parseJSON(data);
$.each(data, function(i, item) {
alert(item);
});
Default-Values are only considered for parameters NOT given to the function.
So given a function
procedure foo( bar1 IN number DEFAULT 3,
bar2 IN number DEFAULT 5,
bar3 IN number DEFAULT 8 );
if you call this procedure with no arguments then it will behave as if called with
foo( bar1 => 3,
bar2 => 5,
bar3 => 8 );
but 'NULL' is still a parameter.
foo( 4,
bar3 => NULL );
This will then act like
foo( bar1 => 4,
bar2 => 5,
bar3 => Null );
( oracle allows you to either give the parameter in order they are specified in the procedure, specified by name, or first in order and then by name )
one way to treat NULL the same as a default value would be to default the value to NULL
procedure foo( bar1 IN number DEFAULT NULL,
bar2 IN number DEFAULT NULL,
bar3 IN number DEFAULT NULL );
and using a variable with the desired value then
procedure foo( bar1 IN number DEFAULT NULL,
bar2 IN number DEFAULT NULL,
bar3 IN number DEFAULT NULL )
AS
v_bar1 number := NVL( bar1, 3);
v_bar2 number := NVL( bar2, 5);
v_bar3 number := NVL( bar3, 8);
Use
android:drawableRight="@android:drawable/ic_input_delete"