use driver.findElement(By.partialLinkText("long")).click();
Set the Maximise property to False.
For red lines an points
plt.plot(dates, values, '.r-')
or for x markers and blue lines
plt.plot(dates, values, 'xb-')
You need a regular expression for this. Look here. If you are using .net Framework4.5 then you can also use this. As it is built in .net Framework 4.5. Example
[EmailAddress(ErrorMessage = "Invalid Email Address")]
public string Email { get; set; }
You can use list open file command and then kill the process like below.
sudo lsof -t -i tcp:8181 | xargs kill -9
or
sudo lsof -i tcp:8181
kill -9 PID
This should work with lambda expression:
personList.Distinct().ToDictionary(i => i.FirstandLastName, i => i);
You need to use font-url
in your @font-face block, not url
@font-face {
font-family: 'Inconsolata';
src:font-url('Inconsolata-Regular.ttf') format('truetype');
font-weight: normal;
font-style: normal;
}
as well as this line in application.rb, as you mentioned (for fonts in app/assets/fonts
config.assets.paths << Rails.root.join("app", "assets", "fonts")
My answer is a mod of some prior answers from @JoeMills and @user.
Get a cURL
command to log into server:
Modify cURL command to be able to save session cookie after login
-H 'Cookie: <somestuff>'
curl
at beginning -c login_cookie.txt
'login_cookie.txt'
in the same folderCall a new web page using this new cookie that requires you to be logged in
curl -b login_cookie.txt <url_that_requires_log_in>
I have tried this on Ubuntu 20.04 and it works like a charm.
It should be :
public async Task<ActionResult> GetSomeJsonData()
{
var model = // ... get data or build model etc.
return Json(new { Data = model }, JsonRequestBehavior.AllowGet);
}
or more simply:
return Json(model, JsonRequestBehavior.AllowGet);
I did notice that you are calling GetResources() from another ActionResult which wont work. If you are looking to get JSON back, you should be calling GetResources() from ajax directly...
Set the environment variable in the script command:
...
"scripts": {
"start": "node app.js",
"test": "NODE_ENV=test mocha --reporter spec"
},
...
Then use process.env.NODE_ENV
in your app.
Note: This is for Mac & Linux only. For Windows refer to the comments.
I like smas's answer that uses replaceAll
with a regular expression. If you are going to be doing the same replacement many times, it makes sense to pre-compile the regular expression once:
import java.util.regex.Pattern;
public class Test {
private static final Pattern fooPattern = Pattern.compile("(?i)foo");
private static removeFoo(s){
if (s != null) s = fooPattern.matcher(s).replaceAll("");
return s;
}
public static void main(String[] args) {
System.out.println(removeFoo("FOOBar"));
}
}
You missed the *
in front of NgIf (like we all have, dozens of times):
<div *ngIf="answer.accepted">✔</div>
Without the *
, Angular sees that the ngIf
directive is being applied to the div
element, but since there is no *
or <template>
tag, it is unable to locate a template, hence the error.
If you get this error with Angular v5:
Error: StaticInjectorError[TemplateRef]:
StaticInjectorError[TemplateRef]:
NullInjectorError: No provider for TemplateRef!
You may have <template>...</template>
in one or more of your component templates. Change/update the tag to <ng-template>...</ng-template>
.
jeues answer helped me nothing :-( after hours I finally found the solution for my system and I think this will help other people too. I had to set the LD_LIBRARY_PATH like this:
export LD_LIBRARY_PATH=/usr/lib/x86_64-linux-gnu/
after that everything worked very well, even without any "-extension RANDR" switch.
Not sure if this is cheating or not:
window.say = function(a) { alert(a); };
var a = "say('hello')";
var p = /^([^(]*)\('([^']*)'\).*$/; // ["say('hello')","say","hello"]
var fn = window[p.exec(a)[1]]; // get function reference by name
if( typeof(fn) === "function")
fn.apply(null, [p.exec(a)[2]]); // call it with params
Assuming you actually mean timestamp
because there is no datetime
in Postgres
Cast the timestamp column to a date, that will remove the time part:
select *
from the_table
where the_timestamp_column::date = date '2015-07-15';
This will return all rows from July, 15th.
Note that the above will not use an index on the_timestamp_column
. If performance is critical, you need to either create an index on that expression or use a range condition:
select *
from the_table
where the_timestamp_column >= timestamp '2015-07-15 00:00:00'
and the_timestamp_column < timestamp '2015-07-16 00:00:00';
SJLJ (setjmp/longjmp): – available for 32 bit and 64 bit – not “zero-cost”: even if an exception isn’t thrown, it incurs a minor performance penalty (~15% in exception heavy code) – allows exceptions to traverse through e.g. windows callbacks
DWARF (DW2, dwarf-2) – available for 32 bit only – no permanent runtime overhead – needs whole call stack to be dwarf-enabled, which means exceptions cannot be thrown over e.g. Windows system DLLs.
SEH (zero overhead exception) – will be available for 64-bit GCC 4.8.
source: https://wiki.qt.io/MinGW-64-bit
SELECT
ing columns from a tableCOUNT
, SUM
, MAX
/MIN
DISTINCT
, GROUP BY
, HAVING
JOIN
s, ANSI-89 and ANSI-92 syntaxUNION
vs UNION ALL
NULL
handling: COALESCE
& Native NULL handlingIN
, EXISTS
, and inline viewsWITH
syntax: Subquery Factoring/CTECOMMIT
, ROLLBACK
, Error HandlingHere is the tutorial :- http://javatechig.com/android/installing-android-studio and http://codearetoy.wordpress.com/2010/12/23/jdk-not-found-on-installing-android-sdk/
Adding a system variable JDK_HOME with value c:\Program Files\Java\jdk1.7.0_21\ worked for me. The latest Java release can be downloaded here. Additionally, make sure the variable JAVA_HOME is also set with the above location.
Please note that the above location is my java location. Please post your location in the path
You have mainly to create two functions. First is writeToZipFile() and second is createZipfileForOutPut .... and then call the createZipfileForOutPut('file name of .zip')` …
public static void writeToZipFile(String path, ZipOutputStream zipStream)
throws FileNotFoundException, IOException {
System.out.println("Writing file : '" + path + "' to zip file");
File aFile = new File(path);
FileInputStream fis = new FileInputStream(aFile);
ZipEntry zipEntry = new ZipEntry(path);
zipStream.putNextEntry(zipEntry);
byte[] bytes = new byte[1024];
int length;
while ((length = fis.read(bytes)) >= 0) {
zipStream.write(bytes, 0, length);
}
zipStream.closeEntry();
fis.close();
}
public static void createZipfileForOutPut(String filename) {
String home = System.getProperty("user.home");
// File directory = new File(home + "/Documents/" + "AutomationReport");
File directory = new File("AutomationReport");
if (!directory.exists()) {
directory.mkdir();
}
try {
FileOutputStream fos = new FileOutputStream("Path to your destination" + filename + ".zip");
ZipOutputStream zos = new ZipOutputStream(fos);
writeToZipFile("Path to file which you want to compress / zip", zos);
zos.close();
fos.close();
} catch (FileNotFoundException e) {
e.printStackTrace();
} catch (IOException e) {
e.printStackTrace();
}
}
The BusinessCtrl
is initialised before the createBusinessForm
's FormController
.
Even if you have the ngController
on the form won't work the way you wanted.
You can't help this (you can create your ngControllerDirective
, and try to trick the priority.) this is how angularjs works.
See this plnkr for example: http://plnkr.co/edit/WYyu3raWQHkJ7XQzpDtY?p=preview
It's not very intuitive but this works well for me ...
mkdir remote.git & cd remote.git & git init
git remote add origin $REPO
git fetch origin $BRANCH:refs/remotes/origin/$BRANCH
THEN run the git branch --track command ...
git branch --track $BRANCH origin/$BRANCH
string.split("=", 2);
As String.split(java.lang.String regex, int limit)
explains:
The array returned by this method contains each substring of this string that is terminated by another substring that matches the given expression or is terminated by the end of the string. The substrings in the array are in the order in which they occur in this string. If the expression does not match any part of the input then the resulting array has just one element, namely this string.
The
limit
parameter controls the number of times the pattern is applied and therefore affects the length of the resulting array. If the limit n is greater than zero then the pattern will be applied at most n - 1 times, the array's length will be no greater than n, and the array's last entry will contain all input beyond the last matched delimiter.The string
boo:and:foo
, for example, yields the following results with these parameters:Regex Limit Result : 2 { "boo", "and:foo" } : 5 { "boo", "and", "foo" } : -2 { "boo", "and", "foo" } o 5 { "b", "", ":and:f", "", "" } o -2 { "b", "", ":and:f", "", "" } o 0 { "b", "", ":and:f" }
To make the answer provided by @abourget more complete, the value of scopeValue[field] in the following line of code could be undefined. This would result in an error when setting subfield:
<textarea ng-model="scopeValue[field][subfield]"></textarea>
One way of solving this problem is by adding an attribute ng-focus="nullSafe(field)", so your code would look like the below:
<textarea ng-focus="nullSafe(field)" ng-model="scopeValue[field][subfield]"></textarea>
Then you define nullSafe( field ) in a controller like the below:
$scope.nullSafe = function ( field ) {
if ( !$scope.scopeValue[field] ) {
$scope.scopeValue[field] = {};
}
};
This would guarantee that scopeValue[field] is not undefined before setting any value to scopeValue[field][subfield].
Note: You can't use ng-change="nullSafe(field)" to achieve the same result because ng-change happens after the ng-model has been changed, which would throw an error if scopeValue[field] is undefined.
function getEffectiveVotes($id)
According to the function header, there is only one parameter variable ($id
).
Thus, on line 27, the votes[]
array is undefined and out of scope. You need to add another
parameter value to the function header so that function getEffectiveVotes()
knows to expect two parameters. I'm rusty, but something like this would work.
function getEffectiveVotes($id, $votes)
I'm not saying this is how it should be done, but you might want to research how PHP passes its arrays and decide if you need to explicitly state to pass it by reference
function getEffectiveVotes($id &$votes) <---I forget, no time to look it up right now.
Lastly, call function getEffectiveVotes()
with both arguments wherever it is supposed to be called.
Cheers.
Yes.
$array[] = new stdClass;
$array[] = new stdClass;
print_r($array);
Results in:
Array
(
[0] => stdClass Object
(
)
[1] => stdClass Object
(
)
)
function getPercentUsed() {
$sys = system("df -h /dev/sda6 --output=pcent | grep -o '[0-9]*'", $val);
return $val[0];
}
SqlConnection c = new SqlConnection(@"Data Source=localhost;
Initial Catalog=Northwind; Integrated Security=True");
I have created a wrapper class based on Rustam Irzaev's answer with use of IWshRuntimeLibrary.
IWshRuntimeLibrary -> References -> COM > Windows Script Host Object Model
using System;
using System.IO;
using IWshRuntimeLibrary;
using File = System.IO.File;
public static class Shortcut
{
public static void CreateShortcut(string originalFilePathAndName, string destinationSavePath)
{
string fileName = Path.GetFileNameWithoutExtension(originalFilePathAndName);
string originalFilePath = Path.GetDirectoryName(originalFilePathAndName);
string link = destinationSavePath + Path.DirectorySeparatorChar + fileName + ".lnk";
var shell = new WshShell();
var shortcut = shell.CreateShortcut(link) as IWshShortcut;
if (shortcut != null)
{
shortcut.TargetPath = originalFilePathAndName;
shortcut.WorkingDirectory = originalFilePath;
shortcut.Save();
}
}
public static void CreateStartupShortcut()
{
CreateShortcut(System.Reflection.Assembly.GetEntryAssembly()?.Location, Environment.GetFolderPath(Environment.SpecialFolder.Startup));
}
public static void DeleteShortcut(string originalFilePathAndName, string destinationSavePath)
{
string fileName = Path.GetFileNameWithoutExtension(originalFilePathAndName);
string originalFilePath = Path.GetDirectoryName(originalFilePathAndName);
string link = destinationSavePath + Path.DirectorySeparatorChar + fileName + ".lnk";
if (File.Exists(link)) File.Delete(link);
}
public static void DeleteStartupShortcut()
{
DeleteShortcut(System.Reflection.Assembly.GetEntryAssembly()?.Location, Environment.GetFolderPath(Environment.SpecialFolder.Startup));
}
}
You must run fastboot as root. Try sudo fastboot
Tips valid for securing any web application
If you want to secure your application, then you should definitely start by using HTTPS instead of HTTP, this ensures a creating secure channel between you & the users that will prevent sniffing the data sent back & forth to the users & will help keep the data exchanged confidential.
You can use JWTs (JSON Web Tokens) to secure RESTful APIs, this has many benefits when compared to the server-side sessions, the benefits are mainly:
1- More scalable, as your API servers will not have to maintain sessions for each user (which can be a big burden when you have many sessions)
2- JWTs are self contained & have the claims which define the user role for example & what he can access & issued at date & expiry date (after which JWT won't be valid)
3- Easier to handle across load-balancers & if you have multiple API servers as you won't have to share session data nor configure server to route the session to same server, whenever a request with a JWT hit any server it can be authenticated & authorized
4- Less pressure on your DB as well as you won't have to constantly store & retrieve session id & data for each request
5- The JWTs can't be tampered with if you use a strong key to sign the JWT, so you can trust the claims in the JWT that is sent with the request without having to check the user session & whether he is authorized or not, you can just check the JWT & then you are all set to know who & what this user can do.
Many libraries provide easy ways to create & validate JWTs in most programming languages, for example: in node.js one of the most popular is jsonwebtoken
Since REST APIs generally aims to keep the server stateless, so JWTs are more compatible with that concept as each request is sent with Authorization token that is self contained (JWT) without the server having to keep track of user session compared to sessions which make the server stateful so that it remembers the user & his role, however, sessions are also widely used & have their pros, which you can search for if you want.
One important thing to note is that you have to securely deliver the JWT to the client using HTTPS & save it in a secure place (for example in local storage).
You can learn more about JWTs from this link
VB is not a language. VB is a program that hosts VBA, just as Office hosts VBA. VB is a set of App objects, just like Word and Excel have, and a forms package, just like in Office.
So you can only write VBA code in VB.
PS this info is on the INFO tab on the VB question page for VB.
From VBA Info
VBA 6, was shipped in 1998 and includes a myriad of licensed hosts, among them: Office 2000 - 2010, AutoCAD, PI Processbook, and the stand-alone Visual Basic 6.0
catch (WhateverException e) {
throw e;
}
will simply rethrow the exception you've caught (obviously the surrounding method has to permit this via its signature etc.). The exception will maintain the original stack trace.
While it's possible to call open(filename, 'rb')
and check through the binary image headers for the dimensions, it seems much more useful to install PIL and spend your time writing great new software! You gain greater file format support and the reliability that comes from widespread usage. From the PIL documentation, it appears that the code you would need to complete your task would be:
from PIL import Image
im = Image.open('filename.png')
print 'width: %d - height: %d' % im.size # returns (width, height) tuple
As for writing code yourself, I'm not aware of a module in the Python standard library that will do what you want. You'll have to open()
the image in binary mode and start decoding it yourself. You can read about the formats at:
unicode('foo,bar').translate(dict([[ord(char), u''] for char in u',']))
You can use DateDiff
for this. The where clause in your query would look like:
where DATEDIFF(day,pdate,GETDATE()) < 31
new File(absolutePath).getName();
Describe Formatted/Extended will show the data definition of the table in hive
hive> describe Formatted dbname.tablename;
You can also do just like this:
Task.Run(() => this.FunctionAsync()).Wait();
Note: Be careful about thread blocking!
Note: This answer does not explicitly answer the asked question. the other answers do it. Since the question is specific to a scenario and the raised exception is general, This answer points to the general case.
Hash values are just integers which are used to compare dictionary keys during a dictionary lookup quickly.
Internally, hash()
method calls __hash__()
method of an object which are set by default for any object.
>>> a = [1,2,3,4,[5,6,7],8,9]
>>> set(a)
Traceback (most recent call last):
File "<stdin>", line 1, in <module>
TypeError: unhashable type: 'list'
This happens because of the list inside a list which is a list which cannot be hashed. Which can be solved by converting the internal nested lists to a tuple,
>>> set([1, 2, 3, 4, (5, 6, 7), 8, 9])
set([1, 2, 3, 4, 8, 9, (5, 6, 7)])
>>> hash([1, 2, 3, [4, 5,], 6, 7])
Traceback (most recent call last):
File "<stdin>", line 1, in <module>
TypeError: unhashable type: 'list'
>>> hash(tuple([1, 2, 3, [4, 5,], 6, 7]))
Traceback (most recent call last):
File "<stdin>", line 1, in <module>
TypeError: unhashable type: 'list'
>>> hash(tuple([1, 2, 3, tuple([4, 5,]), 6, 7]))
-7943504827826258506
The solution to avoid this error is to restructure the list to have nested tuples instead of lists.
$('#search').autocomplete( { source: items } );
$('#search:focus').autocomplete('search', $('#search').val() );
This seems to be the only one that worked for me.
You can bind with a variable in the controller:
<input type="text" ng-model="inputText" placeholder="{{somePlaceholder}}" />
In the controller:
$scope.somePlaceholder = 'abc';
As @alucic mentioned, use:
composer require vendor/package:version
or you can use:
composer update vendor/package:version
You should probably review this StackOverflow post about differences between composer install and composer update.
Related to question about version numbers, you can review Composer documentation on versions, but here in short:
So, with Tilde you will get automatic updates of patches but minor and major versions will not be updated. However, if you use Caret you will get patches and minor versions, but you will not get major (breaking changes) versions.
Tilde Version is considered a "safer" approach, but if you are using reliable dependencies (well-maintained libraries) you should not have any problems with Caret Version (because minor changes should not be breaking changes.
If the first item is to be used as a placeholder (empty value) and your select is required
then you can use the :invalid
pseudo-class to target it.
select {_x000D_
-webkit-appearance: menulist-button;_x000D_
color: black;_x000D_
}_x000D_
_x000D_
select:invalid {_x000D_
color: green;_x000D_
}
_x000D_
<select required>_x000D_
<option value="">Item1</option>_x000D_
<option value="Item2">Item2</option>_x000D_
<option value="Item3">Item3</option>_x000D_
</select>
_x000D_
I got around this by temporarily rewriting my function to something like this:
IF OBJECT_ID ('[dbo].[fx_dosomething]', 'TF') IS NOT NULL
drop function [dbo].[fx_dosomething];
GO
create FUNCTION dbo.fx_dosomething ( @x numeric )
returns @t table (debug varchar(100), x2 numeric)
as
begin
declare @debug varchar(100)
set @debug = 'printme';
declare @x2 numeric
set @x2 = 0.123456;
insert into @t values (@debug, @x2)
return
end
go
select * from fx_dosomething(0.1)
requestDispatcher - forward() method
When we use the
forward
method, the request is transferred to another resource within the same server for further processing.In the case of
forward
, the web container handles all processing internally and the client or browser is not involved.When
forward
is called on therequestDispatcher
object, we pass the request and response objects, so our old request object is present on the new resource which is going to process our request.Visually, we are not able to see the forwarded address, it is transparent.
Using the
forward()
method is faster thansendRedirect
.When we redirect using forward, and we want to use the same data in a new resource, we can use
request.setAttribute()
as we have a request object available.SendRedirect
In case of
sendRedirect
, the request is transferred to another resource, to a different domain, or to a different server for further processing.When you use
sendRedirect
, the container transfers the request to the client or browser, so the URL given inside thesendRedirect
method is visible as a new request to the client.In case of
sendRedirect
call, the old request and response objects are lost because it’s treated as new request by the browser.In the address bar, we are able to see the new redirected address. It’s not transparent.
sendRedirect
is slower because one extra round trip is required, because a completely new request is created and the old request object is lost. Two browser request are required.But in
sendRedirect
, if we want to use the same data for a new resource we have to store the data in session or pass along with the URL.Which one is good?
Its depends upon the scenario for which method is more useful.
If you want control is transfer to new server or context, and it is treated as completely new task, then we go for
sendRedirect
. Generally, a forward should be used if the operation can be safely repeated upon a browser reload of the web page and will not affect the result.
Calling the no-arguments super constructor is just a waste of screen space and programmer time. The compiler generates exactly the same code, whether you write it or not.
class Explicit() {
Explicit() {
super();
}
}
class Implicit {
Implicit() {
}
}
LIBRARY_PATH
is used by gcc before compilation to search directories containing static and shared libraries that need to be linked to your program.
LD_LIBRARY_PATH
is used by your program to search directories containing shared libraries after it has been successfully compiled and linked.
EDIT:
As pointed below, your libraries can be static or shared. If it is static then the code is copied over into your program and you don't need to search for the library after your program is compiled and linked. If your library is shared then it needs to be dynamically linked to your program and that's when LD_LIBRARY_PATH
comes into play.
I've tried a select statement now with a PreparedStatement
, but it turned out that it was not faster than the Jdbc template. Maybe, as mezmo suggested, it automatically creates prepared statements.
Anyway, the reason for my sql SELECT
s being so slow was another one. In the WHERE
clause I always used the operator LIKE
, when all I wanted to do was finding an exact match. As I've found out LIKE
searches for a pattern and therefore is pretty slow.
I'm using the operator =
now and it's much faster.
A simple Stream extension method would do the job:
public static class StreamExtensions
{
public static string ConvertToBase64(this Stream stream)
{
var bytes = new Byte[(int)stream.Length];
stream.Seek(0, SeekOrigin.Begin);
stream.Read(bytes, 0, (int)stream.Length);
return Convert.ToBase64String(bytes);
}
}
The methods for Read (and also Write) and optimized for the respective class (whether is file stream, memory stream, etc.) and will do the work for you. For simple task like this, there is no need of readers, and etc.
The only drawback is that the stream is copied into byte array, but that is how the conversion to base64 via Convert.ToBase64String works unfortunately.
There is a library for this BarCode PHP. You just need to include a few files:
require_once('class/BCGFontFile.php');
require_once('class/BCGColor.php');
require_once('class/BCGDrawing.php');
You can generate many types of barcodes, namely 1D or 2D. Add the required library:
require_once('class/BCGcode39.barcode.php');
Generate the colours:
// The arguments are R, G, and B for color.
$colorFront = new BCGColor(0, 0, 0);
$colorBack = new BCGColor(255, 255, 255);
After you have added all the codes, you will get this way:
Example
Since several have asked for an example here is what I was able to do to get it done
require_once('class/BCGFontFile.php');
require_once('class/BCGColor.php');
require_once('class/BCGDrawing.php');
require_once('class/BCGcode128.barcode.php');
header('Content-Type: image/png');
$color_white = new BCGColor(255, 255, 255);
$code = new BCGcode128();
$code->parse('HELLO');
$drawing = new BCGDrawing('', $color_white);
$drawing->setBarcode($code);
$drawing->draw();
$drawing->finish(BCGDrawing::IMG_FORMAT_PNG);
If you want to actually create the image file so you can save it then change
$drawing = new BCGDrawing('', $color_white);
to
$drawing = new BCGDrawing('image.png', $color_white);
To convert existing tabs to spaces, press Edit->Blank Operations->TAB to Space
.
If in the future you want to enter spaces instead of tab when you press tab key:
Settings->Preferences...->Language
(since version 7.1) or Settings->Preferences...->Tab Settings
(previous versions)Replace by space
Tab size
field.I only just noticed this question, and wanted to add my $.02 to this.
In case of Java, this is not actually an option. The "unreachable code" error doesn't come from the fact that JVM developers thought to protect developers from anything, or be extra vigilant, but from the requirements of the JVM specification.
Both Java compiler, and JVM, use what is called "stack maps" - a definite information about all of the items on the stack, as allocated for the current method. The type of each and every slot of the stack must be known, so that a JVM instruction doesn't mistreat item of one type for another type. This is mostly important for preventing having a numeric value ever being used as a pointer. It's possible, using Java assembly, to try to push/store a number, but then pop/load an object reference. However, JVM will reject this code during class validation,- that is when stack maps are being created and tested for consistency.
To verify the stack maps, the VM has to walk through all the code paths that exist in a method, and make sure that no matter which code path will ever be executed, the stack data for every instruction agrees with what any previous code has pushed/stored in the stack. So, in simple case of:
Object a;
if (something) { a = new Object(); } else { a = new String(); }
System.out.println(a);
at line 3, JVM will check that both branches of 'if' have only stored into a (which is just local var#0) something that is compatible with Object (since that's how code from line 3 and on will treat local var#0).
When compiler gets to an unreachable code, it doesn't quite know what state the stack might be at that point, so it can't verify its state. It can't quite compile the code anymore at that point, as it can't keep track of local variables either, so instead of leaving this ambiguity in the class file, it produces a fatal error.
Of course a simple condition like if (1<2)
will fool it, but it's not really fooling - it's giving it a potential branch that can lead to the code, and at least both the compiler and the VM can determine, how the stack items can be used from there on.
P.S. I don't know what .NET does in this case, but I believe it will fail compilation as well. This normally will not be a problem for any machine code compilers (C, C++, Obj-C, etc.)
In templates/admin/includes_grappelli/header.html, line 12, you forgot to put admin:password_change
between '
.
The url Django tag syntax should always be like:
{% url 'your_url_name' %}
Just adding a little more info.
JPA manages the version under the hood for you, however it doesn't do so when you update your record via JPAUpdateClause
, in such cases you need to manually add the version increment to the query.
Same can be said about updating via JPQL, i.e. not a simple change to the entity, but an update command to the database even if that is done by hibernate
Pedro
Great collection of answers, would like to add that you can also do this using the :placeholder-shown
CSS selector. A little cleaner to use IMO, especially if you're already using jQ and have placeholders on your inputs.
if ($('input#cust-descrip').is(':placeholder-shown')) {_x000D_
console.log('Empty');_x000D_
}_x000D_
_x000D_
$('input#cust-descrip').on('blur', '', function(ev) {_x000D_
if (!$('input#cust-descrip').is(':placeholder-shown')) {_x000D_
console.log('Has Text!');_x000D_
}_x000D_
else {_x000D_
console.log('Empty!');_x000D_
}_x000D_
});
_x000D_
<script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/3.3.1/jquery.min.js"></script>_x000D_
_x000D_
<input type="text" class="form-control" id="cust-descrip" autocomplete="off" placeholder="Description">
_x000D_
You can also make use of the :valid
and :invalid
selectors if you have inputs that are required. You can use these selectors if you are using the required attribute on an input.
thought I would update on this.
Found out that adding to the VB Module behind the spreadsheet does not actually register as a Macro.
So here is the solution:
Code
Function LastSavedTimeStamp() As Date
LastSavedTimeStamp = ActiveWorkbook.BuiltinDocumentProperties("Last Save Time")
End Function
Code
=LastSavedTimeStamp()
I recommend you to remove scipy via
apt-get purge scipy
and then to install it by
pip install scipy
If you do both then you might confuse you deb package manager due to possibly differing versions.
Basic qustion if you are using generics in your base control. If yes:
lets say we have control:
public class MyComboDropDown : ComboDropDownComon<MyType>
{
public MyComboDropDown() { }
}
MyComboDropDown will not allow to open designer on it and will be not shown in Toolbox. Why? Because base control is not already compiled - when MyComboDropDown is complied. You can modify to this:
public class MyComboDropDown : MyComboDropDownBase
{
public MyComboDropDown() { }
}
public class MyComboDropDownBase : ComboDropDownComon<MyType>
{
}
Than after rebuild, and reset toolbox it should be able to see MyComboDropDown in designer and also in Toolbox
This works for me.
void pause()
{
cin.clear();
cin.ignore(numeric_limits<streamsize>::max(), '\n');
std::string dummy;
std::cout << "Press any key to continue . . .";
std::getline(std::cin, dummy);
}
Another alternative without the exception check:
UPDATE tablename
SET val1 = in_val1,
val2 = in_val2
WHERE val3 = in_val3;
IF ( sql%rowcount = 0 )
THEN
INSERT INTO tablename
VALUES (in_val1, in_val2, in_val3);
END IF;
I'm Using Windows 8.1 and I use this command
c:\wamp\bin\mysql\mysql5.6.12\bin\mysql.exe
instead of
c:\wamp\bin\mysql\mysql5.6.12\bin\mysqld
and it works fine..
For those of whom are still looking for a more recent answer, here you go:
In the documentation, there's a section on accessing added data files.
Here is the short and sweet of it.
You'll want to import pkgutil
and locate which folder you added the datafile to; i.e. the second string in the tuple which was added to the spec file:
datas = [("path/to/mypackage/data_file.txt", "path/to/mypackage")]
Knowing where you added the data file can then be used for reading it in as binary data, and decoding it as you wish. Take this example:
mypackage
__init__.py # This is a MUST in order for the package to be registered
data_file.txt # The data file you've added
Hello world!
import pkgutil
file = pkgutil.get_data("mypackage", "data_file.txt")
contents = file.decode("utf-8")
print(contents) # Hello world!
pkgutil
- Builtin library__init__.py
and packagesdf.index[df.LastName == 'Smith']
Or
df.query('LastName == "Smith"').index
Will return all row indices where LastName
is Smith
Int64Index([1], dtype='int64')
The most likely reason for use of single vs. double in different libraries is programmer preference and/or API consistency. Other than being consistent, use whichever best suits the string.
Using the other type of quote as a literal:
alert('Say "Hello"');
alert("Say 'Hello'");
This can get complicated:
alert("It's \"game\" time.");
alert('It\'s "game" time.');
Another option, new in ECMAScript 6, is template literals which use the backtick character:
alert(`Use "double" and 'single' quotes in the same string`);
alert(`Escape the \` back-tick character and the \${ dollar-brace sequence in a string`);
Template literals offer a clean syntax for: variable interpolation, multi-line strings, and more.
Note that JSON is formally specified to use double quotes, which may be worth considering depending on system requirements.
There is 3 rapid examples with pure CSS and without javascript where the content appears "on click", with a "maintained click" and a third "onhover" (all only tested in Chrome). Sorry for the up of this post but this question are the first seo result and maybe my contribution can help beginner like me
I think (not tested) but the advantage of argument "content" that you can add great icon like from Font Awesome (its \f-Code) or an hexadecimal icon in place of the text "Hide" and "Show" to internationalize the trick.
example link http://jsfiddle.net/MonkeyTime/h3E9p/2/
<style>
label { position: absolute; top:0; left:0}
input#show, input#hide {
display:none;
}
span#content {
display: block;
-webkit-transition: opacity 1s ease-out;
transition: opacity 1s ease-out;
opacity: 0;
height: 0;
font-size: 0;
overflow: hidden;
}
input#show:checked ~ .show:before {
content: ""
}
input#show:checked ~ .hide:before {
content: "Hide"
}
input#hide:checked ~ .hide:before {
content: ""
}
input#hide:checked ~ .show:before {
content: "Show"
}
input#show:checked ~ span#content {
opacity: 1;
font-size: 100%;
height: auto;
}
input#hide:checked ~ span#content {
display: block;
-webkit-transition: opacity 1s ease-out;
transition: opacity 1s ease-out;
opacity: 0;
height: 0;
font-size: 0;
overflow: hidden;
}
</style>
<input type="radio" id="show" name="group">
<input type="radio" id="hide" name="group" checked>
<label for="hide" class="hide"></label>
<label for="show" class="show"></label>
<span id="content">Lorem iupsum dolor si amet</span>
<style>
#show1 { position: absolute; top:20px; left:0}
#content1 {
display: block;
-webkit-transition: opacity 1s ease-out;
transition: opacity 1s ease-out;
opacity: 0;
height: 0;
font-size: 0;
overflow: hidden;
}
#show1:before {
content: "Show"
}
#show1:active.show1:before {
content: "Hide"
}
#show1:active ~ span#content1 {
opacity: 1;
font-size: 100%;
height: auto;
}
</style>
<div id="show1" class="show1"></div>
<span id="content1">Ipsum Lorem</span>
<style>
#show2 { position: absolute; top:40px; left:0}
#content2 {
display: block;
-webkit-transition: opacity 1s ease-out;
transition: opacity 1s ease-out;
opacity: 0;
height: 0;
font-size: 0;
overflow: hidden;
}
#show2:before {
content: "Show"
}
#show2:hover.show2:before {
content: "Hide"
}
#show2:hover ~ span#content2 {
opacity: 1;
font-size: 100%;
height: auto;
}
/* extra */
#content, #content1, #content2 {
float: left;
margin: 100px auto;
}
</style>
<div id="show2" class="show2"></div>
<span id="content2">Lorem Ipsum</span>
System.exit(0)
terminates the JVM. In simple examples like this it is difficult to percieve the difference. The parameter is passed back to the OS and is normally used to indicate abnormal termination (eg some kind of fatal error), so if you called java from a batch file or shell script you'd be able to get this value and get an idea if the application was successful.
It would make a quite an impact if you called System.exit(0)
on an application deployed to an application server (think about it before you try it).
Use sp_helptext
before the view_name
. Example:
sp_helptext Example_1
Hence you will get the query:
CREATE VIEW dbo.Example_1
AS
SELECT a, b, c
FROM dbo.table_name JOIN blah blah blah
WHERE blah blah blah
sp_helptext will give stored procedures.
Here's a simple solution. I'm using Python 2.7 and Windows 7.
What you're trying to install requires a C/C++ compiler but Python isn't finding it. A lot of Python packages are actually written in C/C++ and need to be compiled. vcvarsall.bat is needed to compile C++ and pip is assuming your machine can do that.
Try upgrading setuptools first, because v6.0 and above will automatically detect a compiler. You might already have a compiler but Python can't find it. Open up a command line and type:
pip install --upgrade setuptools
Now try and install your package again:
pip install [yourpackagename]
If that didn't work, then it's certain you don't have a compiler, so you'll need to install one:
http://www.microsoft.com/en-us/download/details.aspx?id=44266
Now try again:
pip install [yourpackagename]
And there you go. It should work for you.
Use pivot tables, it will definitely save you time. If you are using excel 2007+ use tables (structured references) to keep your table dynamic. However if you insist on using functions, go with Smandoli's suggestion. Again, if you are on 2007+ use SUMIFS, it's faster compared to SUMIF.
Yes, there is a way to do it in XPath 1.0:
concat( substring($s1, 1, number($condition) * string-length($s1)), substring($s2, 1, number(not($condition)) * string-length($s2)) )
This relies on the concatenation of two mutually exclusive strings, the first one being empty if the condition is false (0 * string-length(...)
), the second one being empty if the condition is true. This is called "Becker's method", attributed to Oliver Becker.
In your case:
concat( substring( substring-before(//div[@id='head']/text(), ': '), 1, number( ends-with(//div[@id='head']/text(), ': ') ) * string-length(substring-before(//div [@id='head']/text(), ': ')) ), substring( //div[@id='head']/text(), 1, number(not( ends-with(//div[@id='head']/text(), ': ') )) * string-length(//div[@id='head']/text()) ) )
Though I would try to get rid of all the "//"
before.
Also, there is the possibility that //div[@id='head']
returns more than one node.
Just be aware of that — using //div[@id='head'][1]
is more defensive.
SELECT group,subGroup,COUNT(*) FROM tablename GROUP BY group,subgroup
it is due to expired of debug certificate
simply delete the debug.keystore
located at
C:\Users\.android\
after that build your project the build tools will regenerate a new key and it will work fine. here is a reference:
https://developer.android.com/studio/publish/app-signing
for (NSString* key in xyz) {
id value = xyz[key];
// do stuff
}
This works for every class that conforms to the NSFastEnumeration protocol (available on 10.5+ and iOS), though NSDictionary
is one of the few collections which lets you enumerate keys instead of values. I suggest you read about fast enumeration in the Collections Programming Topic.
Oh, I should add however that you should NEVER modify a collection while enumerating through it.
Best practice says to implement it by your own using local boolean field: http://www.niedermann.dk/2009/06/18/BestPracticeDisposePatternC.aspx
data=pd.read_csv('/your file name', delim_whitespace=True)
data.Number
now you can run this code with no error.
SomeVal=ActiveWorkbook.worksheets("Sheet2").cells(aRow,aCol).Value
did not work. However the following code only worked for me.
SomeVal = ThisWorkbook.Sheets(2).cells(aRow,aCol).Value
It seems to me all existing answers on this page are wrong, including the one marked as correct. That stems from the fact that the question is ambiguously worded.
Summary: If you want to execute the command "exactly once for each line of input," passing the entire line (without newline) to the command as a single argument, then this is the best UNIX-compatible way to do it:
... | tr '\n' '\0' | xargs -0 -n1 ...
If you are using GNU xargs
and don't need to be compatible with all other UNIX's (FreeBSD, Mac OS X, etc.) then you can use the GNU-specific option -d
:
... | xargs -d\\n -n1 ...
Now for the long explanation…
There are two issues to take into account when using xargs:
To test xargs' behavior, we need an utility that shows how many times it's being executed and with how many arguments. I don't know if there is a standard utility to do that, but we can code it quite easily in bash:
#!/bin/bash
echo -n "-> "; for a in "$@"; do echo -n "\"$a\" "; done; echo
Assuming you save it as show
in your current directory and make it executable, here is how it works:
$ ./show one two 'three and four'
-> "one" "two" "three and four"
Now, if the original question is really about point 2. above (as I think it is, after reading it a few times over) and it is to be read like this (changes in bold):
How can I make xargs execute the command exactly once for each argument of input given? Its default behavior is to chunk the input into arguments and execute the command as few times as possible, passing multiple arguments to each instance.
then the answer is -n 1
.
Let's compare xargs' default behavior, which splits the input around whitespace and calls the command as few times as possible:
$ echo one two 'three and four' | xargs ./show
-> "one" "two" "three" "and" "four"
and its behavior with -n 1
:
$ echo one two 'three and four' | xargs -n 1 ./show
-> "one"
-> "two"
-> "three"
-> "and"
-> "four"
If, on the other hand, the original question was about point 1. input splitting and it was to be read like this (many people coming here seem to think that's the case, or are confusing the two issues):
How can I make xargs execute the command with exactly one argument for each line of input given? Its default behavior is to chunk the lines around whitespace.
then the answer is more subtle.
One would think that -L 1
could be of help, but it turns out it doesn't change argument parsing. It only executes the command once for each input line, with as many arguments as were there on that input line:
$ echo $'one\ntwo\nthree and four' | xargs -L 1 ./show
-> "one"
-> "two"
-> "three" "and" "four"
Not only that, but if a line ends with whitespace, it is appended to the next:
$ echo $'one \ntwo\nthree and four' | xargs -L 1 ./show
-> "one" "two"
-> "three" "and" "four"
Clearly, -L
is not about changing the way xargs splits the input into arguments.
The only argument that does so in a cross-platform fashion (excluding GNU extensions) is -0
, which splits the input around NUL bytes.
Then, it's just a matter of translating newlines to NUL with the help of tr
:
$ echo $'one \ntwo\nthree and four' | tr '\n' '\0' | xargs -0 ./show
-> "one " "two" "three and four"
Now the argument parsing looks all right, including the trailing whitespace.
Finally, if you combine this technique with -n 1
, you get exactly one command execution per input line, whatever input you have, which may be yet another way to look at the original question (possibly the most intuitive, given the title):
$ echo $'one \ntwo\nthree and four' | tr '\n' '\0' | xargs -0 -n1 ./show
-> "one "
-> "two"
-> "three and four"
As mentioned above, if you are using GNU xargs
you can replace the tr
with the GNU-specific option -d
:
$ echo $'one \ntwo\nthree and four' | xargs -d\\n -n1 ./show
-> "one "
-> "two"
-> "three and four"
public static int[] removeDuplicates(int[] arr){
HashSet<Integer> set = new HashSet<>();
final int len = arr.length;
//changed end to len
for(int i = 0; i < len; i++){
set.add(arr[i]);
}
int[] whitelist = new int[set.size()];
int i = 0;
for (Iterator<Integer> it = set.iterator(); it.hasNext();) {
whitelist[i++] = it.next();
}
return whitelist;
}
Runs in O(N) time instead of your O(N^3) time
Set return type to Void
instead of void
and return null
// Modify existing method
public static Void displayInt(Integer i) {
System.out.println(i);
return null;
}
OR
// Or use Lambda
myForEach(theList, i -> {System.out.println(i);return null;});
Private Sub CommandButton1_Click()
Dim Data As Object, Employee As Object
Application.ScreenUpdating = False
Set Data = ThisWorkbook.Sheets("Data")
Set Employee = ThisWorkbook.Sheets("Employee Names")
Data.Range("AK1").Value = "Lookup"
Data.Range("AK2:AK" & Data.Range("A1").End(xlDown).Row).Formula = "=VLOOKUP(E2,'Employee Names'!$A:$A,1,0)"
Data.Range("AK2:AK" & Data.Range("A1").End(xlDown).Row).Value = Data.Range("AK2:AK" & Data.Range("A1").End(xlDown).Row).Value
Data.Range("A1:AK" & Data.Range("A1").End(xlDown).Row).AutoFilter Field:=5, Criteria1:="<>"
Data.Range("A1:AK" & Data.Range("A1").End(xlDown).Row).AutoFilter Field:=37, Criteria1:="#N/A"
Application.DisplayAlerts = False
Data.AutoFilter.Range.Offset(1, 0).Rows.SpecialCells(xlCellTypeVisible).Delete (xlShiftUp)
Data.Range("AK:AK").Delete
Data.AutoFilterMode = False
'Selection.AutoFilter
Data.Range("A1:AK" & Data.Range("A1").End(xlDown).Row).AutoFilter Field:=7, Criteria1:="="
Data.Range("A1:AK" & Data.Range("A1").End(xlDown).Row).AutoFilter Field:=12, Criteria1:="<>"
Worksheets("Data").Range("A1:AK" & Data.Range("A1").End(xlDown).Row).Copy
Sheets.Add(After:=Sheets(Sheets.Count)).Name = "DrfeeRequested"
Set Dr = ThisWorkbook.Worksheets("DrfeeRequested")
Dr.Range("A1").PasteSpecial Paste:=xlPasteValues
Application.CutCopyMode = False
Data.AutoFilterMode = False
'DrfeeRequested.AutoFilterMode = False
Selection.AutoFilter
Data.Range("A1:AK" & Data.Range("A1").End(xlDown).Row).AutoFilter Field:=13, Criteria1:="<>"
Data.Range("A1:AK" & Data.Range("A1").End(xlDown).Row).Copy
Sheets.Add(After:=Sheets(Sheets.Count)).Name = "RateLockfollowup"
Set Ratefolup = ThisWorkbook.Worksheets("RateLockfollowup")
Ratefolup.Range("A1").PasteSpecial Paste:=xlPasteValues
Application.CutCopyMode = False
Data.AutoFilterMode = False
Selection.AutoFilter
Data.Range("A1:AK" & Data.Range("A1").End(xlDown).Row).AutoFilter Field:=19, Criteria1:="="
Data.Range("A1:AK" & Data.Range("A1").End(xlDown).Row).AutoFilter Field:=13, Criteria1:="<>"
Data.Range("A1:AK" & Data.Range("A1").End(xlDown).Row).Copy
Sheets.Add(After:=Sheets(Sheets.Count)).Name = "Lockedlefollowup"
Set Lockfolup = ThisWorkbook.Worksheets("Lockedlefollowup")
Lockfolup.Range("A1").PasteSpecial Paste:=xlPasteValues
Application.CutCopyMode = False
Data.AutoFilterMode = False
Selection.AutoFilter
Data.Range("A1:AK" & Data.Range("A1").End(xlDown).Row).AutoFilter Field:=19, Criteria1:="="
Data.Range("A1:AK" & Data.Range("A1").End(xlDown).Row).Copy
Sheets.Add(After:=Sheets(Sheets.Count)).Name = "Hoifollowup"
Set Hoifolup = ThisWorkbook.Worksheets("Hoifollowup")
Hoifolup.Range("A1").PasteSpecial Paste:=xlPasteValues
Application.CutCopyMode = False
Data.AutoFilterMode = False
Selection.AutoFilter
TodayDT = Format(Now())
Weekdy = Weekday(Now())
If Weekdy = 2 Then
LastTwoDays = Now() - Weekday(Now(), 3)
ElseIf Weekdy = 3 Then
LastTwoDays = Now() - Weekday(Now(), 3)
ElseIf Weekdy = 4 Then
LastTwoDays = Now() - Weekday(Now(), 3)
ElseIf Weekdy = 5 Then
LastTwoDays = Now() - Weekday(Now(), 3)
ElseIf Weekdy = 6 Then
LastTwoDays = Now() - Weekday(Now(), 3)
Else
MsgBox "Today Satuarday OR Sunday Data is not Available"
End If
Data.Range("A1:AK" & Data.Range("A1").End(xlDown).Row).AutoFilter Field:=12, Criteria1:="="
Data.Range("A1:AK" & Data.Range("A1").End(xlDown).Row).AutoFilter Field:=11, Criteria1:="<>"
Data.Range("A1:AK" & Data.Range("A1").End(xlDown).Row).AutoFilter Field:=11, Criteria1:=" TodayDT", Operator:=xlAnd, Criteria2:="LastTwoDays"
Data.Range("A1:AK" & Data.Range("A1").End(xlDown).Row).Copy
Sheets.Add(After:=Sheets(Sheets.Count)).Name = "DRfeefollowup"
Set Drfreefolup = ThisWorkbook.Worksheets("DRfeefollowup")
Drfreefolup.Range("A1").PasteSpecial Paste:=xlPasteValues
Application.CutCopyMode = False
Data.AutoFilterMode = False
Data.Range("A1:AK" & Data.Range("A1").End(xlDown).Row).AutoFilter Field:=15, Criteria1:="yes"
Data.Range("A1:AK" & Data.Range("A1").End(xlDown).Row).AutoFilter Field:=19, Criteria1:="x"
Data.Range("A1:AK" & Data.Range("A1").End(xlDown).Row).AutoFilter Field:=12, Criteria1:="<>"
Data.Range("A1:AK" & Data.Range("A1").End(xlDown).Row).AutoFilter Field:=13, Criteria1:="<>"
'Data.Range("A1:AK" & Data.Range("A1").End(xlDown).Row).AutoFilter Field:=14, criterial:="<>"
Data.Range("A1:AK" & Data.Range("A1").End(xlDown).Row).Copy
Sheets.Add(After:=Sheets(Sheets.Count)).Name = "Drworkblefiles"
Set Drworkblefiles = ThisWorkbook.Worksheets("Drworkblefiles")
Drworkblefiles.Range("A1").PasteSpecial Paste:=xlPasteValues
Application.CutCopyMode = False
Data.Range("A1").AutoFilter
End Sub
Private Sub CommandButton2_Click()
Sheets("Data").Range("A1:AJ" & Sheets("Data").Range("A1").End(xlDown).Row).Clear
MsgBox "Please paste new data in data sheet"
End Sub
Assuming it is OK that the operation is not atomic, you can do:
if (std::ifstream(name))
{
std::cout << "File already exists" << std::endl;
return false;
}
std::ofstream file(name);
if (!file)
{
std::cout << "File could not be created" << std::endl;
return false;
}
...
Note that this doesn't work if you run multiple threads trying to create the same file, and certainly will not prevent a second process from "interfering" with the file creation because you have TOCTUI problems. [We first check if the file exists, and then create it - but someone else could have created it in between the check and the creation - if that's critical, you will need to do something else, which isn't portable].
A further problem is if you have permissions such as the file is not readable (so we can't open it for read) but is writeable, it will overwrite the file.
In MOST cases, neither of these things matter, because all you care about is telling someone that "you already have a file like that" (or something like that) in a "best effort" approach.
If you read all answer above and it still does not work...
Make sure that your PHP PDO connection string is fine. Not like mine:
$dbh = new PDO('"mysql:host=' . DB_HOST . ';dbname=' . DB_NAME, DB_USER, DB_PASS)
There is no information in error message what driver was not found.
After reinstalling all possible PDO and MySQL libraries I found out that there was " at start of my connection string.
if you want to read the file into a table at one time you should use BULK INSERT. ON the other hand if you preffer to parse the file line by line to make your own checks, you should take a look at this web: https://www.simple-talk.com/sql/t-sql-programming/reading-and-writing-files-in-sql-server-using-t-sql/ It is possible that you need to activate your xp_cmdshell or other OLE Automation features. Simple Google it and the script will appear. Hope to be useful.
the articles posted by Ricky are very good, but unfortunately they don't answer your question.
To solve your problem you should try this piece of code:
ExeConfigurationFileMap configMap = new ExeConfigurationFileMap();
configMap.ExeConfigFilename = @"d:\test\justAConfigFile.config.whateverYouLikeExtension";
Configuration config = ConfigurationManager.OpenMappedExeConfiguration(configMap, ConfigurationUserLevel.None);
If need to access a value within the config you can use the index operator:
config.AppSettings.Settings["test"].Value;
I believe the normal answer is that it should be passed by value if you need to make a copy of it in your function. Pass it by const reference otherwise.
Here is a good discussion: http://cpp-next.com/archive/2009/08/want-speed-pass-by-value/
spring.jackson.serialization-inclusion=non_null
used to work for us
But when we upgraded spring boot version to 1.4.2.RELEASE or higher, it stopped working.
Now, another property spring.jackson.default-property-inclusion=non_null
is doing the magic.
in fact, serialization-inclusion
is deprecated. This is what my intellij throws at me.
Deprecated: ObjectMapper.setSerializationInclusion was deprecated in Jackson 2.7
So, start using spring.jackson.default-property-inclusion=non_null
instead
Try This.....
Private Sub Form1_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load
Timer1.Start()
End Sub
Private Sub Timer1_Tick(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Timer1.Tick
Label12.Text = TimeOfDay.ToString("h:mm:ss tt")
End Sub
In C#, Array.Resize
is the simplest method to resize any array to new size, e.g.:
Array.Resize<LinkButton>(ref area, size);
Here, i want to resize the array size of LinkButton array:
<LinkButton>
= specifies the array type
ref area
= ref is a keyword and 'area' is the array name
size
= new size array
I changed 3 things and then it works:
var parseCurrency = function (e) {
if (typeof (e) === 'number') return e;
if (typeof (e) === 'string') {
var str = e.trim();
var value = Number(e.replace(/[^0-9.-]+/g, ""));
return str.startsWith('(') && str.endsWith(')') ? -value: value;
}
return e;
}
I disagree with the accepted answer being "the easiest", particularly if you want to use virtualenv.
You can use the Unofficial Windows Binaries instead. Download the appropriate wheel from there, and install it with pip
:
pip install pywin32-219-cp27-none-win32.whl
(Make sure you pick the one for the right version and bitness of Python).
You might be able to get the URL and install it via pip
without downloading it first, but they're made it a bit harder to just grab the URL. Probably better to download it and host it somewhere yourself.
The problem of converting from any non-unicode source to a unicode SQL Server table can be solved by:
Exception.Message
contains only the message (doh) associated with the exception. Example:
Object reference not set to an instance of an object
The Exception.ToString()
method will give a much more verbose output, containing the exception type, the message (from before), a stack trace, and all of these things again for nested/inner exceptions. More precisely, the method returns the following:
ToString returns a representation of the current exception that is intended to be understood by humans. Where the exception contains culture-sensitive data, the string representation returned by ToString is required to take into account the current system culture. Although there are no exact requirements for the format of the returned string, it should attempt to reflect the value of the object as perceived by the user.
The default implementation of ToString obtains the name of the class that threw the current exception, the message, the result of calling ToString on the inner exception, and the result of calling Environment.StackTrace. If any of these members is a null reference (Nothing in Visual Basic), its value is not included in the returned string.
If there is no error message or if it is an empty string (""), then no error message is returned. The name of the inner exception and the stack trace are returned only if they are not a null reference (Nothing in Visual Basic).
Want to share php function which results in grammatically correct Facebook like human readable time format.
Example:
echo get_time_ago(strtotime('now'));
Result:
less than 1 minute ago
function get_time_ago($time_stamp)
{
$time_difference = strtotime('now') - $time_stamp;
if ($time_difference >= 60 * 60 * 24 * 365.242199)
{
/*
* 60 seconds/minute * 60 minutes/hour * 24 hours/day * 365.242199 days/year
* This means that the time difference is 1 year or more
*/
return get_time_ago_string($time_stamp, 60 * 60 * 24 * 365.242199, 'year');
}
elseif ($time_difference >= 60 * 60 * 24 * 30.4368499)
{
/*
* 60 seconds/minute * 60 minutes/hour * 24 hours/day * 30.4368499 days/month
* This means that the time difference is 1 month or more
*/
return get_time_ago_string($time_stamp, 60 * 60 * 24 * 30.4368499, 'month');
}
elseif ($time_difference >= 60 * 60 * 24 * 7)
{
/*
* 60 seconds/minute * 60 minutes/hour * 24 hours/day * 7 days/week
* This means that the time difference is 1 week or more
*/
return get_time_ago_string($time_stamp, 60 * 60 * 24 * 7, 'week');
}
elseif ($time_difference >= 60 * 60 * 24)
{
/*
* 60 seconds/minute * 60 minutes/hour * 24 hours/day
* This means that the time difference is 1 day or more
*/
return get_time_ago_string($time_stamp, 60 * 60 * 24, 'day');
}
elseif ($time_difference >= 60 * 60)
{
/*
* 60 seconds/minute * 60 minutes/hour
* This means that the time difference is 1 hour or more
*/
return get_time_ago_string($time_stamp, 60 * 60, 'hour');
}
else
{
/*
* 60 seconds/minute
* This means that the time difference is a matter of minutes
*/
return get_time_ago_string($time_stamp, 60, 'minute');
}
}
function get_time_ago_string($time_stamp, $divisor, $time_unit)
{
$time_difference = strtotime("now") - $time_stamp;
$time_units = floor($time_difference / $divisor);
settype($time_units, 'string');
if ($time_units === '0')
{
return 'less than 1 ' . $time_unit . ' ago';
}
elseif ($time_units === '1')
{
return '1 ' . $time_unit . ' ago';
}
else
{
/*
* More than "1" $time_unit. This is the "plural" message.
*/
// TODO: This pluralizes the time unit, which is done by adding "s" at the end; this will not work for i18n!
return $time_units . ' ' . $time_unit . 's ago';
}
}
what is the way to retrieve a Date object so that its always in GMT?
Instant.now()
You are using troublesome confusing old date-time classes that are now supplanted by the java.time classes.
Instant
= UTCThe Instant
class represents a moment on the timeline in UTC with a resolution of nanoseconds (up to nine (9) digits of a decimal fraction).
Instant instant = Instant.now() ; // Current moment in UTC.
To exchange this data as text, use the standard ISO 8601 formats exclusively. These formats are sensibly designed to be unambiguous, easy to process by machine, and easy to read across many cultures by people.
The java.time classes use the standard formats by default when parsing and generating strings.
String output = instant.toString() ;
2017-01-23T12:34:56.123456789Z
If you want to see that same moment as presented in the wall-clock time of a particular region, apply a ZoneId
to get a ZonedDateTime
.
Specify a proper time zone name in the format of continent/region
, such as America/Montreal
, Africa/Casablanca
, or Pacific/Auckland
. Never use the 3-4 letter abbreviation such as EST
or IST
as they are not true time zones, not standardized, and not even unique(!).
ZoneId z = ZoneId.of( "Asia/Singapore" ) ;
ZonedDateTime zdt = instant.atZone( z ) ; // Same simultaneous moment, same point on the timeline.
See this code live at IdeOne.com.
Notice the eight hour difference, as the time zone of Asia/Singapore
currently has an offset-from-UTC of +08:00. Same moment, different wall-clock time.
instant.toString(): 2017-01-23T12:34:56.123456789Z
zdt.toString(): 2017-01-23T20:34:56.123456789+08:00[Asia/Singapore]
Avoid the legacy java.util.Date
class. But if you must, you can convert. Look to new methods added to the old classes.
java.util.Date date = Date.from( instant ) ;
…going the other way…
Instant instant = myJavaUtilDate.toInstant() ;
For date-only, use LocalDate
.
LocalDate ld = zdt.toLocalDate() ;
The java.time framework is built into Java 8 and later. These classes supplant the troublesome old legacy date-time classes such as java.util.Date
, Calendar
, & SimpleDateFormat
.
The Joda-Time project, now in maintenance mode, advises migration to the java.time classes.
To learn more, see the Oracle Tutorial. And search Stack Overflow for many examples and explanations. Specification is JSR 310.
Where to obtain the java.time classes?
The ThreeTen-Extra project extends java.time with additional classes. This project is a proving ground for possible future additions to java.time. You may find some useful classes here such as Interval
, YearWeek
, YearQuarter
, and more.
With ES6 you can simply do:
for(const element of Results) {
element.Active = "false";
}
echo rawurlencode('http://www.google.com/index.html?id=asd asd');
yields
http%3A%2F%2Fwww.google.com%2Findex.html%3Fid%3Dasd%20asd
while
echo urlencode('http://www.google.com/index.html?id=asd asd');
yields
http%3A%2F%2Fwww.google.com%2Findex.html%3Fid%3Dasd+asd
The difference being the asd%20asd
vs asd+asd
urlencode differs from RFC 1738 by encoding spaces as +
instead of %20
I know this is an old question but it's ranking high on search engines in regards to this issue.
properties in the FileList object cannot be deleted but at least on Firefox they can be changed. My workaround this issue was to add a property IsValid=true
to those files that passed check and IsValid=false
to those that didn't.
then I just loop through the list to make sure that only the properties with IsValid=true
are added to FormData.
Watch out for case sensitivity. If you have a file
/Content/bootstrap.css
and you redirect in your Bundle.config to
.Include("~/Content/Bootstrap.css")
it will not load the css.
ls
solution, including symlinks to directoriesMany answers here don't actually use ls
(or only use it in the trivial sense of ls -d
, while using wildcards for the actual subdirectory matching. A true ls
solution is useful, since it allows the use of ls
options for sorting order, etc.
One solution using ls
has been given, but it does something different from the other solutions in that it excludes symlinks to directories:
ls -l | grep '^d'
(possibly piping through sed
or awk
to isolate the file names)
In the (probably more common) case that symlinks to directories should be included, we can use the -p
option of ls
, which makes it append a slash character to names of directories (including symlinked ones):
ls -1p | grep '/$'
or, getting rid of the trailing slashes:
ls -1p | grep '/$' | sed 's/\/$//'
We can add options to ls
as needed (if a long listing is used, the -1
is no longer required).
Note: if we want trailing slashes, but don't want them highlighted by grep
, we can hackishly remove the highlighting by making the actual matched portion of the line empty:
ls -1p | grep -P '(?=/$)'
If you have a named list and want to remove a specific element you can try:
lst <- list(a = 1:4, b = 4:8, c = 8:10)
if("b" %in% names(lst)) lst <- lst[ - which(names(lst) == "b")]
This will make a list lst
with elements a
, b
, c
. The second line removes element b
after it checks that it exists (to avoid the problem @hjv mentioned).
or better:
lst$b <- NULL
This way it is not a problem to try to delete a non-existent element (e.g. lst$g <- NULL
)
You may want to read this page of the MySQL manual. How a table gets locked is dependent on what type of table it is.
MyISAM uses table locks to achieve a very high read speed, but if you have an UPDATE statement waiting, then future SELECTS will queue up behind the UPDATE.
InnoDB tables use row-level locking, and you won't have the whole table lock up behind an UPDATE. There are other kind of locking issues associated with InnoDB, but you might find it fits your needs.
Here is a quick and simple solution using PowerShell:
powershell.exe -nologo -noprofile -command "& { $shell = New-Object -COM Shell.Application; $target = $shell.NameSpace('C:\extractToThisDirectory'); $zip = $shell.NameSpace('C:\extractThis.zip'); $target.CopyHere($zip.Items(), 16); }"
This uses the built-in extract functionality of the Explorer and will also show the typical extract progress window. The second parameter 16
to CopyHere
answers all questions with yes.
For those using something like babel stage-2 or transform-class-properties:
import React, { PropTypes, Component } from 'react';
export default class ExampleComponent extends Component {
static contextTypes = {
// some context types
};
static propTypes = {
prop1: PropTypes.object
};
static defaultProps = {
prop1: { foobar: 'foobar' }
};
...
}
Update
As of React v15.5, PropTypes
was moved out of the main React Package (link):
import PropTypes from 'prop-types';
Edit
As pointed out by @johndodo, static
class properties are actually not a part of the ES7 spec, but rather are currently only supported by babel. Updated to reflect that.
You can also use Logical Operators to have something like a Conditional
func = lambda element: (expression and DoSomething) or DoSomethingIfExpressionIsFalse
You can see more about Logical Operators here
You install a new version of R from the official website.
RStudio should automatically start with the new version when you relaunch it.
In case you need to do it manually, in RStudio, go to :Tools -> options -> General.
Check @micstr's answer for a more detailed walkthrough.
String#matchAll
(see the Stage 3 Draft / December 7, 2018 proposal), simplifies acccess to all groups in the match object (mind that Group 0 is the whole match, while further groups correspond to the capturing groups in the pattern):
With
matchAll
available, you can avoid thewhile
loop andexec
with/g
... Instead, by usingmatchAll
, you get back an iterator which you can use with the more convenientfor...of
, array spread, orArray.from()
constructs
This method yields a similar output to Regex.Matches
in C#, re.finditer
in Python, preg_match_all
in PHP.
See a JS demo (tested in Google Chrome 73.0.3683.67 (official build), beta (64-bit)):
var myString = "key1:value1, key2-value2!!@key3=value3";_x000D_
var matches = myString.matchAll(/(\w+)[:=-](\w+)/g);_x000D_
console.log([...matches]); // All match with capturing group values
_x000D_
The console.log([...matches])
shows
You may also get match value or specific group values using
let matchData = "key1:value1, key2-value2!!@key3=value3".matchAll(/(\w+)[:=-](\w+)/g)_x000D_
var matches = [...matchData]; // Note matchAll result is not re-iterable_x000D_
_x000D_
console.log(Array.from(matches, m => m[0])); // All match (Group 0) values_x000D_
// => [ "key1:value1", "key2-value2", "key3=value3" ]_x000D_
console.log(Array.from(matches, m => m[1])); // All match (Group 1) values_x000D_
// => [ "key1", "key2", "key3" ]
_x000D_
NOTE: See the browser compatibility details.
Another useful keyword is FIRST and AFTER if you want to add it in a specific spot in your table.
ALTER TABLE `table1` ADD COLUMN `foo` AFTER `bar` INT DEFAULT 0;
A counting semaphore. Conceptually, a semaphore maintains a set of permits. Each
acquire()
blocks if necessary until a permit is available, and then takes it. Eachrelease()
adds a permit, potentially releasing a blocking acquirer. However, no actual permit objects are used; the Semaphore just keeps a count of the number available and acts accordingly.
Semaphores are often used to restrict the number of threads than can access some (physical or logical) resource
Java does not have built-in Mutex API. But it can be implemented as binary semaphore.
A semaphore initialized to one, and which is used such that it only has at most one permit available, can serve as a mutual exclusion lock. This is more commonly known as a binary semaphore, because it only has two states: one permit available, or zero permits available.
When used in this way, the binary semaphore has the property (unlike many Lock implementations), that the "lock" can be released by a thread other than the owner (as semaphores have no notion of ownership). This can be useful in some specialized contexts, such as deadlock recovery.
So key differences between Semaphore and Mutex:
Semaphore restrict number of threads to access a resource throuhg permits. Mutex allows only one thread to access resource.
No threads owns Semaphore. Threads can update number of permits by calling acquire()
and release()
methods. Mutexes should be unlocked only by the thread holding the lock.
When a mutex is used with condition variables, there is an implied bracketing—it is clear which part of the program is being protected. This is not necessarily the case for a semaphore, which might be called the go to of concurrent programming—it is powerful but too easy to use in an unstructured, indeterminate way.
int i = 65;
char c = Convert.ToChar(i);
in comments to the answer you took the code from someone says ShellExecuteEx doesn't post its STDOUT back to the originating shell. so you will not see "I am root now", even though the code is probably working fine.
instead of printing something, try writing to a file:
import os
import sys
import win32com.shell.shell as shell
ASADMIN = 'asadmin'
if sys.argv[-1] != ASADMIN:
script = os.path.abspath(sys.argv[0])
params = ' '.join([script] + sys.argv[1:] + [ASADMIN])
shell.ShellExecuteEx(lpVerb='runas', lpFile=sys.executable, lpParameters=params)
sys.exit(0)
with open("somefilename.txt", "w") as out:
print >> out, "i am root"
and then look in the file.
If your key is NOT guaranteed to be unique for all elements in the list, you should convert it to a Map<String, List<Choice>>
instead of a Map<String, Choice>
Map<String, List<Choice>> result =
choices.stream().collect(Collectors.groupingBy(Choice::getName));
Also struggled, but got it right typing
git add -f ./JS/*
where JS was my folder name which contain sub folders and files
firstly you have to change the drive, which is allocated to your usb.
follow these step to access your pendrive using CMD. 1- type drivename follow by the colon just like k: 2- type dir it will show all the files and directory in your usb 3- now you can access any file or directory of your usb.
You get the warning because you did not assign a value to one
, which is a pointer. This is undefined behavior.
You should declare it like this:
Vector* one = malloc(sizeof(Vector));
or like this:
Vector one;
in which case you need to replace ->
operator with .
like this:
one.a = 12;
one.b = 13;
one.c = -11;
Finally, in C99 and later you can use designated initializers:
Vector one = {
.a = 12
, .b = 13
, .c = -11
};
If you import the module (.py) file you are creating now from another python script it will not execute the code within
if __name__ == '__main__':
...
If you run the script directly from the console, it will be executed.
Python does not use or require a main() function. Any code that is not protected by that guard will be executed upon execution or importing of the module.
This is expanded upon a little more at python.berkely.edu
Have you tried using the official JQueryUI implementation (not jQuery only) : ?
After reviewing all the other answers, I ended up with this:
function oldSchoolMakeBuild(cb) {
var makeProcess = exec('make -C ./oldSchoolMakeBuild',
function (error, stdout, stderr) {
stderr && console.error(stderr);
cb(error);
});
makeProcess.stdout.on('data', function(data) {
process.stdout.write('oldSchoolMakeBuild: '+ data);
});
}
Sometimes data
will be multiple lines, so the oldSchoolMakeBuild
header will appear once for multiple lines. But this didn't bother me enough to change it.
FirstView
{
NSMutableArray *array; }
- (void)viewDidLoad {
[super viewDidLoad];
array = [[NSMutableArray alloc]init];
array = [[NSUserDefaults standardUserDefaults]objectForKey:@"userlist"];
NSLog(@"%lu",(unsigned long)array.count);
if (array>0)
{
for (int i=0; i<array.count; i++)
{
NSDictionary *dict1 = @{@"Username":[[array valueForKey:@"Username"] objectAtIndex:i],@"Mobilenumber":[[array valueForKey:@"Mobilenumber"] objectAtIndex:i],@"Firstname":[[array valueForKey:@"Firstname"] objectAtIndex:i],@"Lastname":[[array valueForKey:@"Lastname"] objectAtIndex:i],@"dob":[[array valueForKey:@"dob"] objectAtIndex:i],@"image":[[array valueForKey:@"image"] objectAtIndex:i]};
NSLog(@"%@",dict1);
NSArray *array1 = [[NSArray alloc]initWithObjects:dict1, nil];
[[NSUserDefaults standardUserDefaults] setObject:array1 forKey:@"UserList"];
}
}
}
ImagePicker
- (void)imagePickerController:(UIImagePickerController *)picker didFinishPickingMediaWithInfo:(NSDictionary *)info {
UIImage *chosenImage = info[UIImagePickerControllerEditedImage];
self.imaGe.image = chosenImage;
[picker dismissViewControllerAnimated:YES completion:NULL];
}
(IBAction)submitBton:(id)sender {
NSMutableArray *array2 = [[NSMutableArray alloc]initWithArray:
[[NSUserDefaults standardUserDefaults]objectForKey:
@"userlist"]];
UIImage *ima = _imaGe.image;
NSData *imagedata = UIImageJPEGRepresentation(ima,100);
NSDictionary *dict = @{@"Username":_userTxt.text,@"Lastname":_lastTxt.text,@"Firstname":_firstTxt.text,@"Mobilenumber":_mobTxt.text,@"dob":_dobTxt.text,@"image":imagedata};
[array2 addObject:dict];
[[NSUserDefaults standardUserDefaults]setObject:array2
forKey:@"userlist"];
NSLog(@"%@",array2);
[self performSegueWithIdentifier:@"second" sender:self];
}
(IBAction)chooseImg:(id)sender {
UIImagePickerController *picker = [[UIImagePickerController
alloc] init];
picker.delegate = self;
picker.allowsEditing = YES;
picker.sourceType =
UIImagePickerControllerSourceTypePhotoLibrary;
[self presentViewController:picker animated:YES completion:NULL];
}
second View { NSMutableArray *arr; }
- (void)viewDidLoad {
[super viewDidLoad];
arr =[[NSMutableArray alloc]init];
arr = [[NSUserDefaults standardUserDefaults]objectForKey:@"userlist"]; }
#pragma mark- TableView DataSource
-(NSInteger)numberOfSectionsInTableView:(UITableView *)tableView {
return 1; }
-(NSInteger)tableView:(UITableView *)tableView numberOfRowsInSection:(NSInteger)section {
return arr.count; }
-(UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath {
static NSString *cellId = @"tablecell";
TableViewCell *cell =[tableView dequeueReusableCellWithIdentifier:cellId];
cell.userLbl.text =[[arr valueForKey:@"username"] objectAtIndex:indexPath.row];
cell.ageLbl.text =[[arr valueForKey:@"dob"] objectAtIndex:indexPath.row];
cell.profileImg.image =[UIImage imageNamed:[[arr valueForKey:@"image"] objectAtIndex:indexPath.row]];
return cell; }
try
IF(@Trans_type = 'subscr_signup')
BEGIN
set @tmpType = 'premium'
END
ELSE iF(@Trans_type = 'subscr_cancel')
begin
set @tmpType = 'basic'
END
maybe this is what you want
import pandas as pd
idx = pd.MultiIndex.from_product([['state1','state2'], ['county1','county2','county3','county4']])
df = pd.DataFrame({'pop': [12,15,65,42,78,67,55,31]}, index=idx)
pop state1 county1 12 county2 15 county3 65 county4 42 state2 county1 78 county2 67 county3 55 county4 31
df.groupby(level=0, group_keys=False).apply(lambda x: x.sort_values('pop', ascending=False)).groupby(level=0).head(3)
> Out[29]:
pop
state1 county3 65
county4 42
county2 15
state2 county1 78
county2 67
county3 55
heikkim is right, here is some sample code adapted from some code I have:
import org.apache.poi.ss.usermodel.Cell;
import org.apache.poi.ss.usermodel.Sheet;
import org.apache.poi.ss.usermodel.Row;
...
for (int rowIndex = 0; rowIndex <= sheet.getLastRowNum(); rowIndex++) {
row = sheet.getRow(rowIndex);
if (row != null) {
Cell cell = row.getCell(colIndex);
if (cell != null) {
// Found column and there is value in the cell.
cellValueMaybeNull = cell.getStringCellValue();
// Do something with the cellValueMaybeNull here ...
// break; ???
}
}
}
For the colCount
use something like row.getPhysicalNumberOfCells()
Rules are used to add additional functionality which applies to all tests within a test class, but in a more generic way.
For instance, ExternalResource executes code before and after a test method, without having to use @Before
and @After
. Using an ExternalResource
rather than @Before
and @After
gives opportunities for better code reuse; the same rule can be used from two different test classes.
The design was based upon: Interceptors in JUnit
For more information see JUnit wiki : Rules.
You should consider svcutil (svcutil question)
Both xsd.exe and svcutil operate on the XML schema file (.xsd). Your XML must conform to a schema file to be used by either of these two tools.
Note that various 3rd party tools also exist for this.
Rehash of Doogle's answer that doesn't printline numbers, but does allow specifying the number of lines to print.
def history(lastn=None):
"""
param: lastn Defaults to None i.e full history. If specified then returns lastn records from history.
Also takes -ve sequence for first n history records.
"""
import readline
assert lastn is None or isinstance(lastn, int), "Only integers are allowed."
hlen = readline.get_current_history_length()
is_neg = lastn is not None and lastn < 0
if not is_neg:
for r in range(1,hlen+1) if not lastn else range(1, hlen+1)[-lastn:]:
print(readline.get_history_item(r))
else:
for r in range(1, -lastn + 1):
print(readline.get_history_item(r))
First of all, you are in a bad position now - having the task of writing tests for the code you did not originally create and without any changes - nightmare! Talk to your boss and explain, it is not possible to test the code without making it "testable". To make code testable you usually do some important changes;
Regarding private variables. You actually never should do that. Aiming to test private variables is the first sign that something wrong with the current design. Private variables are part of the implementation, tests should focus on behavior rather of implementation details.
Sometimes, private field are exposed to public access with some getter. I do that, but try to avoid as much as possible (mark in comments, like 'used for testing').
Since you have no possibility to change the code, I don't see possibility (I mean real possibility, not like Reflection hacks etc.) to check private variable.
You could also try:
import os
os.system("start \"\" http://example.com")
This, other than @aaronasterling ´s answer has the advantage that it opens the default web browser. Be sure not to forget the "http://".
You should have something like this:
$('body').click(function() {
// do something here
});
The callback function will be called when the user clicks somewhere on the web page. You can trigger the callback programmatically with:
$('body').trigger('click');
I prefer the count()
function instead of sizeOf()
as sizeOf()
is only an alias of count()
and does not mean the same in many other languages. Many programmers expect sizeof()
to return the amount of memory allocated.
You can do get id value by using
test_alert = $('#myDiv').val();_x000D_
alert(test_alert);
_x000D_
<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>_x000D_
<div id="myDiv"><p>Some Text</p></div>
_x000D_
There is also a Windows built-in program called findstr.exe
with which you can search within files.
>findstr /s "provider=sqloledb" *.cs
Meder Omuraliev suggested to use an event handler and set scrollTo(0,0). This is an example for Wassim-azirar. Bringing it all together, I assume this is the final solution.
We have 3 problems: the scrollbar, scrolling with mouse, and keyboard. This hides the scrollbar:
html, body{overflow:hidden;}
Unfortunally, you can still scroll with the keyboard: To prevent this, we can:
function keydownHandler(e) {
var evt = e ? e:event;
var keyCode = evt.keyCode;
if (keyCode==38 || keyCode==39 || keyCode==40 || keyCode==37){ //arrow keys
e.preventDefault()
scrollTo(0,0);
}
}
document.onkeydown=keydownHandler;
The scrolling with the mouse just naturally doesn't work after this code, so we have prevented the scrolling.
For example: https://jsfiddle.net/aL7pes70/1/
I've tried everything suggested here but didn't work for me. So in case I can help anyone with a similar issue, every single tutorial I've checked is not updated to work with version 4.
Here is what I've done to make it work
import React from 'react';
import App from './App';
import ReactDOM from 'react-dom';
import {
HashRouter,
Route
} from 'react-router-dom';
ReactDOM.render((
<HashRouter>
<div>
<Route path="/" render={()=><App items={temasArray}/>}/>
</div>
</HashRouter >
), document.getElementById('root'));
That's the only way I have managed to make it work without any errors or warnings.
In case you want to pass props to your component for me the easiest way is this one:
<Route path="/" render={()=><App items={temasArray}/>}/>
Windows uses .cer extension for an X.509 certificate. These can be in "binary" (ASN.1 DER), or it can be encoded with Base-64 and have a header and footer applied (PEM); Windows will recognize either. To verify the integrity of a certificate, you have to check its signature using the issuer's public key... which is, in turn, another certificate.
Windows uses .pfx for a PKCS #12 file. This file can contain a variety of cryptographic information, including certificates, certificate chains, root authority certificates, and private keys. Its contents can be cryptographically protected (with passwords) to keep private keys private and preserve the integrity of root certificates.
Windows uses .pvk for a private key file. I'm not sure what standard (if any) Windows follows for these. Hopefully they are PKCS #8 encoded keys. Emmanuel Bourg reports that these are a proprietary format. Some documentation is available.
You should never disclose your private key. These are contained in .pfx and .pvk files.
Generally, you only exchange your certificate (.cer) and the certificates of any intermediate issuers (i.e., the certificates of all of your CAs, except the root CA) with other parties.
Look at Morris in-order tree traversal which uses constant space and runs in O(n) (up to 3 times longer than your normal recursive traversal - but you save hugely on space). If the nodes are modifiable, than you could save the calculated result of the sub-tree as you backtrack to its root (by writing directly to the Node).
Just to complete the above methods I tried a variant with the fileinput module:
import fileinput as fi
def filecount(fname):
for line in fi.input(fname):
pass
return fi.lineno()
And passed a 60mil lines file to all the above stated methods:
mapcount : 6.1331050396
simplecount : 4.588793993
opcount : 4.42918205261
filecount : 43.2780818939
bufcount : 0.170812129974
It's a little surprise to me that fileinput is that bad and scales far worse than all the other methods...
I was facing same issue for changing default gradle version from 5.0 to 4.7, Below are the steps to change default gradle version in intellij
1) Change gradle version in gradle/wrapper/gradle-wrapper.properties in this property distributionUrl
2) Hit refresh button in gradle projects menu so that it will start downloading new gradle zip version
You need a parameter with Direction set to ParameterDirection.ReturnValue
in code but no need to add an extra parameter in SP. Try this
SqlParameter returnParameter = cmd.Parameters.Add("RetVal", SqlDbType.Int);
returnParameter.Direction = ParameterDirection.ReturnValue;
cmd.ExecuteNonQuery();
int id = (int) returnParameter.Value;
Put in all your svg:
fill="var(--svgcolor)"
In Css:
:root {
--svgcolor: tomato;
}
To use pseudo-classes:
span.github:hover {
--svgcolor:aquamarine;
}
Explanation
root = html page.
--svgcolor = a variable.
span.github = selecting a span element with a class github, a svg icon inside and assigning pseudo-class hover.
Make sure you properly escape the quotes.
string line = "\"Text\",\"Text\",\"Text\",";
string result = line.Replace("\",\"", ";");
I think one of the original questions here was not answered. I believe that vanilla eval() is not used because then angular apps would not work as Chrome apps, which explicitly prevent eval() from being used for security reasons.
I just had the same problem, and I could fix it by just putting a comma and not a period/full stop in the number because of French localization.
So it works with:
2 is OK
2,5 is OK
2.5 is KO (The number is considered "illegal" and you receive empty value).
I managed to download the file generated by the rest API URL much easier with this kind of code which worked just fine on my local:
import React, {Component} from "react";
import {saveAs} from "file-saver";
class MyForm extends Component {
constructor(props) {
super(props);
this.handleSubmit = this.handleSubmit.bind(this);
}
handleSubmit(event) {
event.preventDefault();
const form = event.target;
let queryParam = buildQueryParams(form.elements);
let url = 'http://localhost:8080/...whatever?' + queryParam;
fetch(url, {
method: 'GET',
headers: {
// whatever
},
})
.then(function (response) {
return response.blob();
}
)
.then(function(blob) {
saveAs(blob, "yourFilename.xlsx");
})
.catch(error => {
//whatever
})
}
render() {
return (
<form onSubmit={this.handleSubmit} id="whateverFormId">
<table>
<tbody>
<tr>
<td>
<input type="text" key="myText" name="myText" id="myText"/>
</td>
<td><input key="startDate" name="from" id="startDate" type="date"/></td>
<td><input key="endDate" name="to" id="endDate" type="date"/></td>
</tr>
<tr>
<td colSpan="3" align="right">
<button>Export</button>
</td>
</tr>
</tbody>
</table>
</form>
);
}
}
function buildQueryParams(formElements) {
let queryParam = "";
//do code here
return queryParam;
}
export default MyForm;
A Window is always shown independently, A Page is intended to be shown inside a Frame or inside a NavigationWindow.
In my opinion it's a lot easier just to use the UglifyJS tool directly:
npm install --save-dev uglify-js
./dst/bundle.js
file.Add a build
command to your package.json
:
"scripts": {
"build": "webpack && uglifyjs ./dst/bundle.js -c -m -o ./dst/bundle.min.js --source-map ./dst/bundle.min.js.map"
}
npm run build
command.No need to install uglify-js globally, just install it locally for the project.
<script>var myVar = 15;</script>
<input id="EditBanner" type="button" value="Edit Image" onclick="EditBanner(myVar);"/>
(left, upper, right, lower) means two points,
with an 800x600 pixel image, the image's left upper point is (0, 0), the right lower point is (800, 600).
So, for cutting the image half:
from PIL import Image
img = Image.open("ImageName.jpg")
img_left_area = (0, 0, 400, 600)
img_right_area = (400, 0, 800, 600)
img_left = img.crop(img_left_area)
img_right = img.crop(img_right_area)
img_left.show()
img_right.show()
The Python Imaging Library uses a Cartesian pixel coordinate system, with (0,0) in the upper left corner. Note that the coordinates refer to the implied pixel corners; the centre of a pixel addressed as (0, 0) actually lies at (0.5, 0.5).
Coordinates are usually passed to the library as 2-tuples (x, y). Rectangles are represented as 4-tuples, with the upper left corner given first. For example, a rectangle covering all of an 800x600 pixel image is written as (0, 0, 800, 600).
NULL-safe condition would looks like:
select * from table
where NOT (tester <=> 'username')
It is better to use C++ string class instead of old style C string, life would be much easier.
if you have existing old style string, you can covert to string class
char greeting[6] = {'H', 'e', 'l', 'l', 'o', '\0'};
cout<<greeting + "and there \n"; //will not compile because concat does \n not work on old C style string
string trueString = string (greeting);
cout << trueString + "and there \n"; // compiles fine
cout << trueString + 'c'; // this will be fine too. if one of the operand if C++ string, this will work too
pass date to moment like this it will compare and give result. if you dont want format remove it
moment(Date1).format("YYYY-MM-DD") > moment(Date2).format("YYYY-MM-DD")
And now a keys iterator for range-based for loop.
template<typename C>
class keys_it
{
typename C::const_iterator it_;
public:
using key_type = typename C::key_type;
using pointer = typename C::key_type*;
using difference_type = std::ptrdiff_t;
keys_it(const typename C::const_iterator & it) : it_(it) {}
keys_it operator++(int ) /* postfix */ { return it_++ ; }
keys_it& operator++( ) /* prefix */ { ++it_; return *this ; }
const key_type& operator* ( ) const { return it_->first ; }
const key_type& operator->( ) const { return it_->first ; }
keys_it operator+ (difference_type v ) const { return it_ + v ; }
bool operator==(const keys_it& rhs) const { return it_ == rhs.it_; }
bool operator!=(const keys_it& rhs) const { return it_ != rhs.it_; }
};
template<typename C>
class keys_impl
{
const C & c;
public:
keys_impl(const C & container) : c(container) {}
const keys_it<C> begin() const { return keys_it<C>(std::begin(c)); }
const keys_it<C> end () const { return keys_it<C>(std::end (c)); }
};
template<typename C>
keys_impl<C> keys(const C & container) { return keys_impl<C>(container); }
Usage:
std::map<std::string,int> my_map;
// fill my_map
for (const std::string & k : keys(my_map))
{
// do things
}
That's what i was looking for. But nobody had it, it seems.
You get my OCD code alignment as a bonus.
As an exercise, write your own for values(my_map)
dwkd's answer mostly worked for me in Entity Framework core, except when I saw this exception:
InvalidOperationException: The instance of entity type 'Customer' cannot be tracked because another instance with the same key value for {'Id'} is already being tracked. When attaching existing entities, ensure that only one entity instance with a given key value is attached. Consider using 'DbContextOptionsBuilder.EnableSensitiveDataLogging' to see the conflicting key values.
To avoid the exception, I updated the code:
Customer customer = context.Customers.Local.First(c => c.Id == id);
if (customer == null) {
customer = new Customer () { Id = id };
context.Customers.Attach(customer);
}
context.Customers.Remove(customer);
context.SaveChanges();
TL;DR: Set CURLOPT_PROXYTYPE
to use CURLPROXY_SOCKS5_HOSTNAME
if you have a modern PHP, the value 7
otherwise, and/or correct the CURLOPT_PROXY
value.
As you correctly deduced, you cannot resolve .onion
domains via the normal DNS system, because this is a reserved top-level domain specifically for use by Tor and such domains by design have no IP addresses to map to.
Using CURLPROXY_SOCKS5
will direct the cURL command to send its traffic to the proxy, but will not do the same for domain name resolution. The DNS requests, which are emitted before cURL attempts to establish the actual connection with the Onion site, will still be sent to the system's normal DNS resolver. These DNS requests will surely fail, because the system's normal DNS resolver will not know what to do with a .onion
address unless it, too, is specifically forwarding such queries to Tor.
Instead of CURLPROXY_SOCKS5
, you must use CURLPROXY_SOCKS5_HOSTNAME
. Alternatively, you can also use CURLPROXY_SOCKS4A
, but SOCKS5 is much preferred. Either of these proxy types informs cURL to perform both its DNS lookups and its actual data transfer via the proxy. This is required to successfully resolve any .onion
domain.
There are also two additional errors in the code in the original question that have yet to be corrected by previous commenters. These are:
Here is the correct code in full, with comments to indicate the changes.
<?php
$url = 'http://jhiwjjlqpyawmpjx.onion/'; // Note the addition of a semicolon.
$ch = curl_init();
curl_setopt($ch, CURLOPT_URL, $url);
curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
curl_setopt($ch, CURLOPT_PROXY, "127.0.0.1:9050"); // Note the address here is just `IP:port`, not an HTTP URL.
curl_setopt($ch, CURLOPT_PROXYTYPE, CURLPROXY_SOCKS5_HOSTNAME); // Note use of `CURLPROXY_SOCKS5_HOSTNAME`.
$output = curl_exec($ch);
$curl_error = curl_error($ch);
curl_close($ch);
print_r($output);
print_r($curl_error);
You can also omit setting CURLOPT_PROXYTYPE
entirely by changing the CURLOPT_PROXY
value to include the socks5h://
prefix:
// Note no trailing slash, as this is a SOCKS address, not an HTTP URL.
curl_setopt(CURLOPT_PROXY, 'socks5h://127.0.0.1:9050');
public static T Runner<T>(Func<T> funcToRun)
{
//Do stuff before running function as normal
return funcToRun();
}
Usage:
var ReturnValue = Runner(() => GetUser(99));
System.currentTimeMillis()
is obviously the fastest because it's only one method call and no garbage collector is required.
With C++17 (or later), you can use the "structured bindings" feature, which lets you define multiple variables, with different names, using a single tuple/pair. Example:
for (const auto& [name, description] : planet_descriptions) {
std::cout << "Planet " << name << ":\n" << description << "\n\n";
}
The original proposal (by luminaries Bjarne Stroustrup, Herb Sutter and Gabriel Dos Reis) is fun to read (and the suggested syntax is more intuitive IMHO); there's also the proposed wording for the standard which is boring to read but is closer to what will actually go in.
You cannot directly create a table stored as a sequence file and insert text into it. You must do this:
Example:
CREATE TABLE test_txt(field1 int, field2 string)
ROW FORMAT DELIMITED FIELDS TERMINATED BY '\t';
LOAD DATA INPATH '/path/to/file.tsv' INTO TABLE test_txt;
CREATE TABLE test STORED AS SEQUENCEFILE
AS SELECT * FROM test_txt;
DROP TABLE test_txt;
I just had this with 15.8.3 after uninstalling some .NET Core 1.x preview SDKs, my application would not compile and showed the error.
It was fixed by installing the latest x86 version of the SDK even though I'm on Windows 10 x64.
I presume this is because VS 2017 is still a x86 program and though the programs run as x64 the compiler was looking for an appropriate x86 SDK
Anyone looking to do this inside Visual Studio, this Code Project article will help. Just add "--auto-open-devtools-for-tabs" in the arguments box. Works on 2017.
HTML
<p class="replaced">Original Text</p>
CSS
.replaced {
visibility: hidden;
position: relative;
}
.replaced:after {
visibility: visible;
position: absolute;
top: 0;
left: 0;
content: "This text replaces the original.";
}
I assume HTTPS is recommended by GitHub for several reasons
It's simpler to access a repository from anywhere as you only need your account details (no SSH keys required) to write to the repository.
HTTPS Is a port that is open in all firewalls. SSH is not always open as a port for communication to external networks
A GitHub repository is therefore more universally accessible using HTTPS than SSH.
In my view SSH keys are worth the little extra work in creating them
SSH Keys do not provide access to your GitHub account, so your account cannot be hijacked if your key is stolen.
Using a strong keyphrase with your SSH key limits any misuse, even if your key gets stolen (after first breaking access protection to your computer account)
If your GitHub account credentials (username/password) are stolen, your GitHub password can be changed to block you from access and all your shared repositories can be quickly deleted.
If a private key is stolen, someone can do a force push of an empty repository and wipe out all change history for each repository you own, but cannot change anything in your GitHub account. It will be much easier to try recovery from this breach of you have access to your GitHub account.
My preference is to use SSH with a passphrase protected key. I have a different SSH key for each computer, so if that machine gets stolen or key compromised, I can quickly login to GitHub and delete that key to prevent unwanted access.
SSH can be tunneled over HTTPS if the network you are on blocks the SSH port.
https://help.github.com/articles/using-ssh-over-the-https-port/
If you use HTTPS, I would recommend adding two-factor authentication, to protect your account as well as your repositories.
If you use HTTPS with a tool (e.g an editor), you should use a developer token from your GitHub account rather than cache username and password in that tools configuration. A token would mitigate the some of the potential risk of using HTTPS, as tokens can be configured for very specific access privileges and easily be revoked if that token is compromised.
It seems despite the intrinsic limitations of the money datatype, if you're already using it (or have inherited it as I have) the answer to your question is, use DECIMAL.
I changed the import sequence without fixing the problem, until finally I installed moments and tempus dominius (Core and bootrap), using npm and include them in boostrap.js
try {
window.Popper = require('popper.js').default;
window.$ = window.jQuery = require('jquery');
require('moment'); /*added*/
require('bootstrap');
require('tempusdominus-bootstrap-4');/*added*/} catch (e) {}
Here is a tool that generates relational diagrams from MySQL (on Windows at the moment). I have used it on a database with 400 tables. If the diagram is too big for a single diagram, it gets broken down into smaller ones. So you will probably end up with multiple diagrams and you can navigate between them by right clicking. It is all explained in the link below. The tool is free (as in free beer), the author uses it himself on consulting assignments, and lets other people use it. http://www.scmlite.com/Quick%20overview
Native JSON support has been included in PHP since 5.2 in the form of methods json_encode()
and json_decode()
. You would use the first to output a PHP variable in JSON.
According to this, DatabaseGeneratedOption.Identity is not detected by a specific migration if it's added after the table has been created, which is the case I run into. So I dropped the database and that specific migration and added a new migration, finally update the database, then everything works as expected. I am using EF 6.1, SQL2014 and VS2013.
SonarQube
reported Return an empty collection instead of null.
and I had a problem with the error with casting as in the title of this question.
I was able to get rid of both only using return XYZ.ToList().AsQueryable();
in a method with IQueryable
like so:
public IQueryable<SomeType> MethodName (...) {
IQueryable<SomeType> XYZ;
...
return XYZ.ToList().AsQueryable();
}
Hope so it helps for those in a similar scenario(s).
In most cases, it is enough just to hide the element, for example in this way:
export default class ErrorBoxComponent extends React.Component {
constructor(props) {
super(props);
this.state = {
isHidden: false
}
}
dismiss() {
this.setState({
isHidden: true
})
}
render() {
if (!this.props.error) {
return null;
}
return (
<div data-alert className={ "alert-box error-box " + (this.state.isHidden ? 'DISPLAY-NONE-CLASS' : '') }>
{ this.props.error }
<a href="#" className="close" onClick={ this.dismiss.bind(this) }>×</a>
</div>
);
}
}
Or you may render/rerender/not render via parent component like this
export default class ParentComponent extends React.Component {
constructor(props) {
super(props);
this.state = {
isErrorShown: true
}
}
dismiss() {
this.setState({
isErrorShown: false
})
}
showError() {
if (this.state.isErrorShown) {
return <ErrorBox
error={ this.state.error }
dismiss={ this.dismiss.bind(this) }
/>
}
return null;
}
render() {
return (
<div>
{ this.showError() }
</div>
);
}
}
export default class ErrorBoxComponent extends React.Component {
dismiss() {
this.props.dismiss();
}
render() {
if (!this.props.error) {
return null;
}
return (
<div data-alert className="alert-box error-box">
{ this.props.error }
<a href="#" className="close" onClick={ this.dismiss.bind(this) }>×</a>
</div>
);
}
}
Finally, there is a way to remove html node, but i really dont know is it a good idea. Maybe someone who knows React from internal will say something about this.
export default class ErrorBoxComponent extends React.Component {
dismiss() {
this.el.remove();
}
render() {
if (!this.props.error) {
return null;
}
return (
<div data-alert className="alert-box error-box" ref={ (el) => { this.el = el} }>
{ this.props.error }
<a href="#" className="close" onClick={ this.dismiss.bind(this) }>×</a>
</div>
);
}
}
After many years of success with the answers above, I have found this not to work again - but I did find a working solution for subplots at
https://jdhao.github.io/2017/06/03/change-aspect-ratio-in-mpl
With full credit of course to the author above (who can perhaps rather post here), the relevant lines are:
ratio = 1.0
xleft, xright = ax.get_xlim()
ybottom, ytop = ax.get_ylim()
ax.set_aspect(abs((xright-xleft)/(ybottom-ytop))*ratio)
The link also has a crystal clear explanation of the different coordinate systems used by matplotlib.
Thanks for all great answers received - especially @Yann's which will remain the winner.
Other than white-space:nowrap;
also add the following CSS
ul li{
display: inline;
}
You need to create a new XAttribute
instead of XElement
. Try something like this:
public static void Test()
{
var xdoc = XDocument.Parse(@"
<Snippets>
<Snippet name='abc'>
<SnippetCode>
testcode1
</SnippetCode>
</Snippet>
<Snippet name='xyz'>
<SnippetCode>
testcode2
</SnippetCode>
</Snippet>
</Snippets>");
xdoc.Root.Add(
new XElement("Snippet",
new XAttribute("name", "name goes here"),
new XElement("SnippetCode", "SnippetCode"))
);
xdoc.Save(@"C:\TEMP\FOO.XML");
}
This generates the output:
<?xml version="1.0" encoding="utf-8"?>
<Snippets>
<Snippet name="abc">
<SnippetCode>
testcode1
</SnippetCode>
</Snippet>
<Snippet name="xyz">
<SnippetCode>
testcode2
</SnippetCode>
</Snippet>
<Snippet name="name goes here">
<SnippetCode>SnippetCode</SnippetCode>
</Snippet>
</Snippets>
i also remove privileges of root and database not showing in mysql console when i was a root user, so changed user by mysql>mysql -u 'userName' -p;
and password;
UPDATE mysql.user SET Grant_priv='Y', Super_priv='Y' WHERE User='root';
FLUSH PRIVILEGES;
after this command it all show database's in root .
Thanks
Here is a link that will help answer your questions. In short:
count(*) is the correct way to write it and count(1) is OPTIMIZED TO BE count(*) internally -- since
a) count the rows where 1 is not null is less efficient than
b) count the rows
I had the same issue, when I tried to update a row:
@Query(value = "UPDATE data SET value = 'asdf'", nativeQuery = true)
void setValue();
My Problem was that I forgot to add the @Modifying
annotation:
@Modifying
@Query(value = "UPDATE data SET value = 'asdf'", nativeQuery = true)
void setValue();
This is what worked for me. Issue is earlier I didn't set Content Type(header) when I used exchange method.
MultiValueMap<String, String> map = new LinkedMultiValueMap<String, String>();
map.add("param1", "123");
map.add("param2", "456");
map.add("param3", "789");
map.add("param4", "123");
map.add("param5", "456");
HttpHeaders headers = new HttpHeaders();
headers.setContentType(MediaType.APPLICATION_FORM_URLENCODED);
final HttpEntity<MultiValueMap<String, String>> entity = new HttpEntity<MultiValueMap<String, String>>(map ,
headers);
JSONObject jsonObject = null;
try {
RestTemplate restTemplate = new RestTemplate();
ResponseEntity<String> responseEntity = restTemplate.exchange(
"https://url", HttpMethod.POST, entity,
String.class);
if (responseEntity.getStatusCode() == HttpStatus.CREATED) {
try {
jsonObject = new JSONObject(responseEntity.getBody());
} catch (JSONException e) {
throw new RuntimeException("JSONException occurred");
}
}
} catch (final HttpClientErrorException httpClientErrorException) {
throw new ExternalCallBadRequestException();
} catch (HttpServerErrorException httpServerErrorException) {
throw new ExternalCallServerErrorException(httpServerErrorException);
} catch (Exception exception) {
throw new ExternalCallServerErrorException(exception);
}
ExternalCallBadRequestException and ExternalCallServerErrorException are the custom exceptions here.
Note: Remember HttpClientErrorException is thrown when a 4xx error is received. So if the request you send is wrong either setting header or sending wrong data, you could receive this exception.
You can't change a Font once it's created - so you need to create a new one:
mainForm.lblName.Font = new Font("Arial", mainForm.lblName.Font.Size);
Try connecting without any password:
mysql -u root
I believe the initial default is no password for the root account (which should obviously be changed as soon as possible).
I was facing this problem while trying to compile OpenCV 3 on a Xubuntu 14.04 Thrusty Tahr system. With all the dev packages of Python installed, the configuration process was always returning the message:
Could NOT found PythonInterp: /usr/bin/python2.7 (found suitable version "2.7.6", minimum required is "2.7")
Could NOT find PythonLibs (missing: PYTHON_INCLUDE_DIRS) (found suitable exact version "2.7.6")
Found PythonInterp: /usr/bin/python3.4 (found suitable version "3.4", minimum required is "3.4")
Could NOT find PythonLibs (missing: PYTHON_LIBRARIES) (Required is exact version "3.4.0")
The CMake version available on Thrusty Tahr repositories is 2.8. Some posts inspired me to upgrade CMake. I've added a PPA CMake repository which installs CMake version 3.2.
After the upgrade everything ran smoothly and the compilation was successful.
Here is my solution
[^0-9A-Z,\n]
This will remove all the digits, commas and new lines but select the middle space such as data set of
Use xpath and text()
driver.findElement(By.Xpath("//strong[contains(text(),'" + service +"')]"));
pure python code:
from math import sqrt
def stddev(lst):
mean = float(sum(lst)) / len(lst)
return sqrt(float(reduce(lambda x, y: x + y, map(lambda x: (x - mean) ** 2, lst))) / len(lst))
Similar, but again a little bit different.
Make the image 100% opacity so it is clear. And then on img hover reduce it to the opacity you want. In this example, I have also added easing for a nice transition.
img {
-webkit-filter: brightness(100%);
}
img:hover {
-webkit-filter: brightness(70%);
-webkit-transition: all 1s ease;
-moz-transition: all 1s ease;
-o-transition: all 1s ease;
-ms-transition: all 1s ease;
transition: all 1s ease;
}
That will do it, Hope that helps.
Thank you Robert Byers for your jsfiddle
Here is the easiest way I've seen. Note: Make sure you have "@Html.AntiForgeryToken()" in your View
$("a.markAsDone").click(function (event) {
event.preventDefault();
var sToken = document.getElementsByName("__RequestVerificationToken")[0].value;
$.ajax({
url: $(this).attr("rel"),
type: "POST",
contentType: "application/x-www-form-urlencoded",
data: { '__RequestVerificationToken': sToken, 'id': parseInt($(this).attr("title")) }
})
.done(function (data) {
//Process MVC Data here
})
.fail(function (jqXHR, textStatus, errorThrown) {
//Process Failure here
});
});
API is specifications on how to do something, an interface, such as "The railroad tracks are four feet apart, and the metal bar is 1 inch wide" Now that you have the API you can now build a train that will fit on those railroad tracks if you want to go anywhere. API is just information on how to build your code, it doesn't do anything.
SDK is some package of actual tools that already worried about the specifications. "Here's a train, some coal, and a maintenance man. Use it to go from place to place" With the SDK you don't worry about specifics. An SDK is actual code, it can be used by itself to do something, but of course, the train won't start up spontaneously, you still have to get a conductor to control the train.
SDKs also have their own APIs. "If you want to power the train put coal in it", "Pull the blue lever to move the train.", "If the train starts acting funny, call the maintenance man" etc.
Add this to your code :
instance.setDatapath("C:\\somepath\\tessdata");
instance.setLanguage("eng");
I think @tsatiz's answer is mostly right (programming to an interface rather than an implementation). However, by programming to the interface you won't lose any functionality. Let me explain.
If you declare your variable as a
you do not actually lose any functionality of the ArrayList. All you need to do is to cast your List<type> list = new ArrayList<type>
list
down to an ArrayList
. Here's an example:
List<String> list = new ArrayList<String>();
((ArrayList<String>) list).ensureCapacity(19);
Ultimately I think tsatiz is correct as once you cast to an ArrayList you're no longer coding to an interface. However, it's still a good practice to initially code to an interface and, if it later becomes necessary, code to an implementation if you must.
Hope that helps!
LocalDateTime.parse(
"2012-07-10 14:58:00.000000".replace( " " , "T" )
)
You are attempting to squeeze a value with microseconds (six decimal digits) into a data type capable only of milliseconds resolution (three decimal digits). That is impossible.
Instead, use a data type with fine enough resolution. The java.time classes use nanosecond resolution (nine decimal digits).
You are attempting to put a value lacking any offset-from-UTC or time zone into a data type (Date
) that only represents values in UTC. So you are adding information (UTC offset) not intended by the input.
Use an appropriate data type instead. Specifically, java.time.LocalDateTime
.
Other Answers and Comments correctly explain that the formatting pattern codes are case-sensitive. So MM
and mm
have different effects.
The troublesome old date-time classes bundled with the earliest versions of Java are now legacy, supplanted by the java.time classes built into Java 8 and later.
Your input strings nearly comply with the ISO 8601 standard formats. Replace the SPACE in the middle with a T
to comply fully.
The java.time classes use the standard formats by default when parsing/generating strings. So no need to specify a formatting pattern.
and I need the resultant date object to be of the same format.
No, date-time objects do not have a "format". Do not conflate date-time objects with mere strings. Strings are inputs and outputs of the objects. The objects maintain their own internal representions of the date-time info, the details of which are irrelevant to us as calling programmers.
Your input lacks any indicator of offset-from-UTC or troublesome me zone. So we parse as a LocalDateTime
objects which lacks those concepts.
String input = "2012-07-10 14:58:00.000000".replace( " " , "T" ) ;
LocalDateTime ldt = LocalDateTime.parse( input ) ;
To generate a String representing the value of your LocalDateTime
:
toString
to get a String in standard ISO 8601 format.DateTimeFormatter
for producing strings in either custom formats or automatically-localized formats. Search Stack Overflow for more info as these topics have been covered many many times already.
ZonedDateTime
A LocalDateTime
does not represent an exact point on the timeline.
To determine an actual moment, assign a time zone. For example noon in Kolkata India comes much earlier than noon in Paris France. Noon without a time zone could be happening at any point over a range of about 26-27 hours.
ZoneId z = ZoneId.of( "Asia/Kolkata" ) ;
ZonedDateTime zdt = ldt.atZone( z ) ;
The java.time framework is built into Java 8 and later. These classes supplant the troublesome old legacy date-time classes such as java.util.Date
, Calendar
, & SimpleDateFormat
.
The Joda-Time project, now in maintenance mode, advises migration to the java.time classes.
To learn more, see the Oracle Tutorial. And search Stack Overflow for many examples and explanations. Specification is JSR 310.
You may exchange java.time objects directly with your database. Use a JDBC driver compliant with JDBC 4.2 or later. No need for strings, no need for java.sql.*
classes.
Where to obtain the java.time classes?
The ThreeTen-Extra project extends java.time with additional classes. This project is a proving ground for possible future additions to java.time. You may find some useful classes here such as Interval
, YearWeek
, YearQuarter
, and more.
Method 1:
Open Terminal and enter this command
rm -rf ~/Library/Developer/Xcode/DerivedData
Method 2:
It will bring you to the location of derived data and you can just delete it manually.
This minimal CMakeLists.txt
file compiles a simple shared library:
cmake_minimum_required(VERSION 2.8)
project (test)
set(CMAKE_BUILD_TYPE Release)
include_directories(${CMAKE_CURRENT_SOURCE_DIR}/include)
add_library(test SHARED src/test.cpp)
However, I have no experience copying files to a different destination with CMake. The file command with the COPY/INSTALL signature looks like it might be useful.
This should work:
IDTSVariables100 vars = null;
VariableDispenser.LockForRead("System::TaskName");
VariableDispenser.GetVariables(vars);
string TaskName = vars("System::TaskName").Value.ToString();
vars.Unlock();
Your initial code lacks call of the GetVariables() method.
Do not depend on this. Any good mail client will not support executable code within an email. Any knowledgeable user will not use a client that does.
if(!/^(0?[1-9]|[12][0-9]|3[01])[\/\-](0?[1-9]|1[012])[\/\-]\d{2}$/.test($(this).val())){
alert('Date format incorrect (DD/MM/YY)');
$(this).datepicker('setDate', "");
return false;
}
This code will validate date format DD/MM/YY
Here the Implementation of Paul Burkes answer:
public class ShadowImageView extends ImageView {
public ShadowImageView(Context context, AttributeSet attrs, int defStyle) {
super(context, attrs, defStyle);
}
public ShadowImageView(Context context, AttributeSet attrs) {
super(context, attrs);
}
public ShadowImageView(Context context) {
super(context);
}
private Paint createShadow() {
Paint mShadow = new Paint();
float radius = 10.0f;
float xOffset = 0.0f;
float yOffset = 2.0f;
// color=black
int color = 0xFF000000;
mShadow.setShadowLayer(radius, xOffset, yOffset, color);
return mShadow;
}
@Override
protected void onDraw(Canvas canvas) {
Paint mShadow = createShadow();
Drawable d = getDrawable();
if (d != null){
setLayerType(LAYER_TYPE_SOFTWARE, mShadow);
Bitmap bitmap = ((BitmapDrawable) getDrawable()).getBitmap();
canvas.drawBitmap(bitmap, 0.0f, 0.0f, mShadow);
} else {
super.onDraw(canvas);
}
};
}
TODO:
execute setLayerType(LAYER_TYPE_SOFTWARE, mShadow);
only if API Level is > 10
This is a very simple way of doing it with no functionality and all visual effect,
Use a grid and just simply customise it.
<Grid Background="DodgerBlue" Height="250" Width="1" VerticalAlignment="Center" Margin="5,0,5,0"/>
Just another way to do it.
All you need to do is run the sp_tables stored procedure. http://msdn.microsoft.com/en-us/library/aa260318(SQL.80).aspx