Java 7 defaults to TLS 1.0, which can cause this error when that protocol is not accepted. I ran into this problem with a Tomcat application and a server that would not accept TLS 1.0 connections any longer. I added
-Dhttps.protocols=TLSv1.1,TLSv1.2
to the Java options and that fixed it. (Tomcat was running Java 7.)
I once ran into this situation and I had the dependencies in classpath. The solution was to include javax.mail and javax.activation libraries in the container's (eg. tomcat) lib folder. Using maven -set them to provided scope and it should work. You will have shared email libs in classpath for all projects.
Useful source: http://haveacafe.wordpress.com/2008/09/26/113/
There is a Superuser Roles: root, which is a Built-In Roles, may meet your need.
If I invoke clone() method on array of Objects of type A, how will it clone its elements?
The elements of the array will not be cloned.
Will the copy be referencing to the same objects?
Yes.
Or will it call (element of type A).clone() for each of them?
No, it will not call clone()
on any of the elements.
class Student(object):
name = ""
age = 0
major = ""
# The class "constructor" - It's actually an initializer
def __init__(self, name, age, major):
self.name = name
self.age = age
self.major = major
def make_student(name, age, major):
student = Student(name, age, major)
return student
Note that even though one of the principles in Python's philosophy is "there should be one—and preferably only one—obvious way to do it", there are still multiple ways to do this. You can also use the two following snippets of code to take advantage of Python's dynamic capabilities:
class Student(object):
name = ""
age = 0
major = ""
def make_student(name, age, major):
student = Student()
student.name = name
student.age = age
student.major = major
# Note: I didn't need to create a variable in the class definition before doing this.
student.gpa = float(4.0)
return student
I prefer the former, but there are instances where the latter can be useful – one being when working with document databases like MongoDB.
awk 'BEGIN{FS=","}END{print "COLUMN NO: "NF " ROWS NO: "NR}' file
You can use any delimiter as field separator and can find numbers of ROWS and columns
@Paul answer links to a great solution, but the code doesn't allow to use onClickListeners on items children (the callback functions are never called). I've been struggling for a while to find a solution and I've decided to post here what you need to modify in that code (in case somebody need it).
Instead of overriding dispatchTouchEvent
override onTouchEvent
. Use the same code of dispatchTouchEvent
and delete the method (you can read the difference between the two here http://developer.android.com/guide/topics/ui/ui-events.html#EventHandlers )
@Override
public boolean onTouchEvent(MotionEvent event) {
boolean handled = mGesture.onTouchEvent(event);
return handled;
}
Then, add the following code which will decide to steal the event from the item children and give it to our onTouchEvent
, or let it be handled by them.
@Override
public boolean onInterceptTouchEvent(MotionEvent ev) {
switch( ev.getActionMasked() ){
case MotionEvent.ACTION_DOWN:
mInitialX = ev.getX();
mInitialY = ev.getY();
return false;
case MotionEvent.ACTION_MOVE:
float deltaX = Math.abs(ev.getX() - mInitialX);
float deltaY = Math.abs(ev.getY() - mInitialY);
return ( deltaX > 5 || deltaY > 5 );
default:
return super.onInterceptTouchEvent(ev);
}
}
Finally, don't forget to declare the variables in your class:
private float mInitialX;
private float mInitialY;
$(':checkbox').change(function(){
$('#delete').removeAttr('hidden');
});
Note, thanks to tip by A.Wolff
, you should use removeAttr
instead of setting to false. When set to false, the element will still be hidden. Therefore, removing is more effective.
I assume Answer
as an Integer data type so in this case, you can easily use Scanner
class for adding the multiple elements(say 50).
private static final Scanner obj = new Scanner(System.in);
private static ArrayList<Integer> arrayList = new ArrayList<Integer>(50);
public static void main(String...S){
for (int i=0;i<50;i++) {
/*Using Scanner class object to take input.*/
arrayList.add(obj.nextInt());
}
/*You can also check the elements of your ArrayList.*/
for (int i=0;i<50;i++) {
/*Using get function for fetching the value present at index 'i'.*/
System.out.print(arrayList.get(i)+" ");
}}
This is a simple and easy method for adding multiple values in an ArrayList using for loop.
As in the above code, I presume the Answer
as Integer it could be String
, Double
, Long
et Cetra. So, in that case, you can use next()
, nextDouble()
, and nextLong()
respectively.
For those of not crazy about VB, here it is in c#:
Note, you have to add a reference to Microsoft Shell Controls and Automation from the COM tab of the References dialog.
public static void Main(string[] args)
{
List<string> arrHeaders = new List<string>();
Shell32.Shell shell = new Shell32.Shell();
Shell32.Folder objFolder;
objFolder = shell.NameSpace(@"C:\temp\testprop");
for( int i = 0; i < short.MaxValue; i++ )
{
string header = objFolder.GetDetailsOf(null, i);
if (String.IsNullOrEmpty(header))
break;
arrHeaders.Add(header);
}
foreach(Shell32.FolderItem2 item in objFolder.Items())
{
for (int i = 0; i < arrHeaders.Count; i++)
{
Console.WriteLine(
$"{i}\t{arrHeaders[i]}: {objFolder.GetDetailsOf(item, i)}");
}
}
}
check out this link and then help yourself out.
the basic code is
#create a temp. file
echo "hi " > t.tmp
# set the file time to 2 hours ago
touch -t 200405121120 t.tmp
# then check for files
find /admin//dump -type f -newer t.tmp -print -exec ls -lt {} \; | pg
You may want to have a look at https://isocpp.org/wiki/faq/pointers-to-members#fnptr-vs-memfnptr-types, especially [33.1] Is the type of "pointer-to-member-function" different from "pointer-to-function"?
Surprised that we haven't seen this variation come up. This minimizes extra args on the command line and explicitly shows the DB being switched to FOO
and then dropped:
$ mongo --host "mongodb://machine:port" --eval 'db.getSiblingDB("FOO").dropDatabase();'
I'm more used to the subquery solution to this, but I have not tried it in MySQL:
DELETE FROM posts
WHERE project_id IN (
SELECT project_id
FROM projects
WHERE client_id = :client_id
);
Not an innovative way but below two steps might save a ton of time and energy.
This can be done by openinig XCode -> Menu -> Preference -> Components -> Command Line Tool
I did installed different instances of python at different time and removing all but 2.7 was helpful in my case. Note : You may have to install modules after doing it. So get ready with pip/easy_install/ports.
Uninstall can be done with super easy steps mentioned in following link.
This should help, uses simple hash table.
$a1=@(1,2,3,4,5) $b1=@(1,2,3,4,5,6)
$hash= @{}
#storing elements of $a1 in hash
foreach ($i in $a1)
{$hash.Add($i, "present")}
#define blank array $c
$c = @()
#adding uncommon ones in second array to $c and removing common ones from hash
foreach($j in $b1)
{
if(!$hash.ContainsKey($j)){$c = $c+$j}
else {hash.Remove($j)}
}
#now hash is left with uncommon ones in first array, so add them to $c
foreach($k in $hash.keys)
{
$c = $c + $k
}
I think of two ways to test for the type of a value:
Method 1:
You can use the isNaN
javascript method, which determines if a value is NaN or not. But because in your case you are testing a numerical value converted to string, Javascript is trying to guess the type of the value and converts it to the number 5 which is not NaN
. That's why if you console.log
out the result, you will be surprised that the code:
if (isNaN(i)) {
console.log('This is not number');
}
will not return anything. For this reason a better alternative would be the method 2.
Method 2:
You may use javascript typeof method to test the type of a variable or value
if (typeof i != "number") {
console.log('This is not number');
}
Notice that i'm using double equal operator, because in this case the type of the value is a string but Javascript internally will convert to Number.
A more robust method to force the value to numerical type is to use Number.isNaN which is part of new Ecmascript 6 (Harmony) proposal, hence not widespread and fully supported by different vendors.
If you want to use sha-256 (guid would be faster) then you would need to do something like
SHA256 shaAlgorithm = new SHA256Managed();
byte[] shaDigest = shaAlgorithm.ComputeHash(ASCIIEncoding.ASCII.GetBytes(url));
return BitConverter.ToString(shaDigest);
Of course, it doesn't have to ascii and it can be any other kind of hashing algorithm as well
You need to subclass UITableViewCell
and subclass method willTransitionToState:(UITableViewCellStateMask)state
which is called whenever user swipes the cell. The state
flags will let you know if the Delete button is showing, and show/hide your More button there.
Unfortunately this method gives you neither the width of the Delete button nor the animation time. So you need to observer & hard-code your More button's frame and animation time into your code (I personally think Apple needs to do something about this).
Here is a Perl script:
sub format_lines($)
{
my $refonlines = shift;
my @lines = @{$refonlines};
my $tmppath = "-";
foreach (@lines)
{
next if ($_ =~ /^\s+/);
if ($_ =~ /(^\w+(\/\w*)*):/)
{
$tmppath = $1 if defined $1;
next;
}
print "$tmppath/$_";
}
}
sub main()
{
my @lines = ();
while (<>)
{
push (@lines, $_);
}
format_lines(\@lines);
}
main();
usage:
ls -LR | perl format_ls-LR.pl
You can add a watchpoint for each variable you're interested in.
A watchpoint is a special breakpoint that stops the execution of an application whenever the value of a given expression changes, without specifying where it might occur. Unlike breakpoints (which are line-specific), watchpoints are associated with files. They take effect whenever a specified condition is true, regardless of when or where it occurred. You can set a watchpoint on a global variable by highlighting the variable in the editor, or by selecting it in the Outline view.
You can use memset
, but only because our selection of types is restricted to integral types.
In general case in C it makes sense to implement a macro
#define ZERO_ANY(T, a, n) do{\
T *a_ = (a);\
size_t n_ = (n);\
for (; n_ > 0; --n_, ++a_)\
*a_ = (T) { 0 };\
} while (0)
This will give you C++-like functionality that will let you to "reset to zeros" an array of objects of any type without having to resort to hacks like memset
. Basically, this is a C analog of C++ function template, except that you have to specify the type argument explicitly.
On top of that you can build a "template" for non-decayed arrays
#define ARRAY_SIZE(a) (sizeof (a) / sizeof *(a))
#define ZERO_ANY_A(T, a) ZERO_ANY(T, (a), ARRAY_SIZE(a))
In your example it would be applied as
int a[100];
ZERO_ANY(int, a, 100);
// or
ZERO_ANY_A(int, a);
It is also worth noting that specifically for objects of scalar types one can implement a type-independent macro
#define ZERO(a, n) do{\
size_t i_ = 0, n_ = (n);\
for (; i_ < n_; ++i_)\
(a)[i_] = 0;\
} while (0)
and
#define ZERO_A(a) ZERO((a), ARRAY_SIZE(a))
turning the above example into
int a[100];
ZERO(a, 100);
// or
ZERO_A(a);
To be safe you may want to use both...
input[readonly], input[readonly="readonly"] {
/*styling info here*/
}
The readonly attribute is a "boolean attribute", which can be either blank or "readonly" (the only valid values). http://www.whatwg.org/specs/web-apps/current-work/#boolean-attribute
If you are using something like jQuery's .prop('readonly', true)
function, you'll end up needing [readonly]
, whereas if you are using .attr("readonly", "readonly")
then you'll need [readonly="readonly"]
.
Correction:
You only need to use input[readonly]
. Including input[readonly="readonly"]
is redundant. See https://stackoverflow.com/a/19645203/1766230
I suspect that the SelectedItem property of the ComboBox does not change until the control has been validated (which occurs when the control loses focus), whereas the SelectedValue property changes whenever the user selects an item.
Here is a reference to the focus events that occur on controls:
http://msdn.microsoft.com/en-us/library/system.windows.forms.control.validated.aspx
You need to use wildards (.*
) before and after to replace the whole line:
sed 's/.*TEXT_TO_BE_REPLACED.*/This line is removed by the admin./'
$request->fullUrl()
will also work if you are injecting Illumitate\Http\Request
.
All inputs should be replaced with custom directive that reads a single global variable to toggle readonly status.
// template
<your-input [readonly]="!childmessage"></your-input>
// component value
childmessage = false;
You can also solve this problem via Apache configuration using mod_remoteip, by adding the following to a conf.d file:
RemoteIPHeader X-Forwarded-For
RemoteIPInternalProxy 172.16.0.0/12
LogFormat "%a %l %u %t \"%r\" %>s %b \"%{Referer}i\" \"%{User-Agent}i\"" combined
In docker container phpmyadmin/phpmyadmin no php.ini file. But there are two files : php.ini-debug and php.ini-production
To solve the problem, simply rename one of the files to php.ini and restart docker container.
Kara is about programming a bug(!) coming up in various versions, e.g. Finite State Machine, Java, Turing Machine, Multithreading
Kara http://www.swisseduc.ch/compscience/karatojava/kara/icons/kara-worldeditor.gif
With library fpp
, you can easily create time series with date format:
time_ser=ts(data,frequency=4,start=c(1954,2))
here we start at the 2nd quarter of 1954 with quarter fequency.
If you are developing an Asp.Net Mvc application and you are trying to return a JsonResult
in your controller, make sure you add JsonRequestBehavior.AllowGet
to the Json
method. That fixed it for me.
public JsonResult GetTaskSubCategories(int id)
{
var subcategs = FindSubCategories(id);
return Json(subcategs, JsonRequestBehavior.AllowGet); //<-- Notice it has two parameters
}
Lets get at the root of the question, how to address the last element of a List safely...
Assuming
List<string> myList = new List<string>();
Then
//NOT safe on an empty list!
string myString = myList[myList.Count -1];
//equivalent to the above line when Count is 0, bad index
string otherString = myList[-1];
"count-1" is a bad habit unless you first guarantee the list is not empty.
There is not a convenient way around checking for the empty list except to do it.
The shortest way I can think of is
string myString = (myList.Count != 0) ? myList [ myList.Count-1 ] : "";
you could go all out and make a delegate that always returns true, and pass it to FindLast, which will return the last value (or default constructed valye if the list is empty). This function starts at the end of the list so will be Big O(1) or constant time, despite the method normally being O(n).
//somewhere in your codebase, a strange delegate is defined
private static bool alwaysTrue(string in)
{
return true;
}
//Wherever you are working with the list
string myString = myList.FindLast(alwaysTrue);
The FindLast method is ugly if you count the delegate part, but it only needs to be declared one place. If the list is empty, it will return a default constructed value of the list type "" for string. Taking the alwaysTrue delegate a step further, making it a template instead of string type, would be more useful.
Using PyCharm
(part of the JetBrains suite) you need to define your script directory as Source:
Right Click > Mark Directory as > Sources Root
Assuming that the button is a UIButton
:
UIButton *button = …;
[button setEnabled:NO]; // disables
[button setTitle:@"Foo" forState:UIControlStateNormal]; // sets text
See the documentation for UIButton
.
Code
<div id="google_translate_element"></div>
<script type="text/javascript">
function googleTranslateElementInit() {
new google.translate.TranslateElement({pageLanguage: 'hi', layout: google.translate.TranslateElement.InlineLayout.SIMPLE}, 'google_translate_element');
}
</script>
<script type="text/javascript" src="//translate.google.com/translate_a/element.js?cb=googleTranslateElementInit"></script>
I really needed this function but for Wordpress. I fit and it worked perfectly
<script>
jQuery(function($){
var name = "caririceara.comcariri";
$.get("https://images"+~~(Math.random()*33)+"-focus-opensocial.googleusercontent.com/gadgets/proxy?container=none&url=https://www.instagram.com/" + name + "/", function(html) {
if (html) {
var regex = /_sharedData = ({.*);<\/script>/m,
json = JSON.parse(regex.exec(html)[1]),
edges = json.entry_data.ProfilePage[0].graphql.user.edge_owner_to_timeline_media.edges;
$.each(edges, function(n, edge) {
if (n <= 7){
var node = edge.node;
$('.img_ins').append('<a href="https://instagr.am/p/'+node.shortcode+'" target="_blank"><img src="'+node.thumbnail_src+'" width="150"></a>');
}
});
}
});
});
</script>
A few of the options are deprecated as of today. So watch out for those.
If you try <input onkeypress="blockSpecialCharacters(event)" />
, an IDE like WebStorm
will slash out event and tell you:
Deprecated symbol used, consults docs for better alternative
Then when you get to the JavaScript, console.log(e.keyCode)
will also give keyCode and say:
Deprecated symbol used, consults docs for better alternative
Anyways I did it using jQuery.
<script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/3.4.1/jquery.js"></script>
<input id="theInput" />
<script>
function blockSpecialCharacters(e) {
let key = e.key;
let keyCharCode = key.charCodeAt(0);
// 0-9
if(keyCharCode >= 48 && keyCharCode <= 57) {
return key;
}
// A-Z
if(keyCharCode >= 65 && keyCharCode <= 90) {
return key;
}
// a-z
if(keyCharCode >= 97 && keyCharCode <= 122) {
return key;
}
return false;
}
$('#theInput').keypress(function(e) {
blockSpecialCharacters(e);
});
</script>
String exePath = System.Reflection.Assembly.GetExecutingAssembly().GetModules()[0].FullyQualifiedName;
string dir = Path.GetDirectoryName(exePath);
Try this!
The notation List<?>
means "a list of something (but I'm not saying what)". Since the code in test
works for any kind of object in the list, this works as a formal method parameter.
Using a type parameter (like in your point 3), requires that the type parameter be declared. The Java syntax for that is to put <T>
in front of the function. This is exactly analogous to declaring formal parameter names to a method before using the names in the method body.
Regarding List<Object>
not accepting a List<String>
, that makes sense because a String
is not Object
; it is a subclass of Object
. The fix is to declare public static void test(List<? extends Object> set) ...
. But then the extends Object
is redundant, because every class directly or indirectly extends Object
.
Try the command FLUSH PRIVILEGES
when you log into the MySQL terminal. If that doesn't work, try the following set of commands while in the MySQL terminal
$ mysql -u root
mysql> USE mysql;
mysql> UPDATE user SET password=PASSWORD("NEWPASSWORD") WHERE User='root';
mysql> FLUSH PRIVILEGES;
mysql> quit
Change out NEWPASSWORD with whatever password you want. Should be all set!
Update: As of MySQL 5.7, the password
field has been renamed authentication_string
. When changing the password, use the following query to change the password. All other commands remain the same:
mysql> UPDATE user SET authentication_string=PASSWORD("NEWPASSWORD") WHERE User='root';
Update: On 8.0.15 (maybe already before that version) the PASSWORD() function does not work, as mentioned in the comments below. You have to use:
UPDATE mysql.user SET authentication_string='password' WHERE User='root';
The arguments
object is not actually an instance of an Array, and does not have any of the Array methods. So, arguments.slice(...)
will not work because the arguments object does not have the slice method.
Arrays do have this method, and because the arguments
object is very similar to an array, the two are compatible. This means that we can use array methods with the arguments object. And since array methods were built with arrays in mind, they will return arrays rather than other argument objects.
So why use Array.prototype
? The Array
is the object which we create new arrays from (new Array()
), and these new arrays are passed methods and properties, like slice. These methods are stored in the [Class].prototype
object. So, for efficiency sake, instead of accessing the slice method by (new Array()).slice.call()
or [].slice.call()
, we just get it straight from the prototype. This is so we don't have to initialise a new array.
But why do we have to do this in the first place? Well, as you said, it converts an arguments object into an Array instance. The reason why we use slice, however, is more of a "hack" than anything. The slice method will take a, you guessed it, slice of an array and return that slice as a new array. Passing no arguments to it (besides the arguments object as its context) causes the slice method to take a complete chunk of the passed "array" (in this case, the arguments object) and return it as a new array.
Something like this should do the trick (However, read after the snippet for more info)
CREATE PROCEDURE GetFilteredData()
BEGIN
DECLARE bDone INT;
DECLARE var1 CHAR(16); -- or approriate type
DECLARE Var2 INT;
DECLARE Var3 VARCHAR(50);
DECLARE curs CURSOR FOR SELECT something FROM somewhere WHERE some stuff;
DECLARE CONTINUE HANDLER FOR NOT FOUND SET bDone = 1;
DROP TEMPORARY TABLE IF EXISTS tblResults;
CREATE TEMPORARY TABLE IF NOT EXISTS tblResults (
--Fld1 type,
--Fld2 type,
--...
);
OPEN curs;
SET bDone = 0;
REPEAT
FETCH curs INTO var1,, b;
IF whatever_filtering_desired
-- here for whatever_transformation_may_be_desired
INSERT INTO tblResults VALUES (var1, var2, var3 ...);
END IF;
UNTIL bDone END REPEAT;
CLOSE curs;
SELECT * FROM tblResults;
END
A few things to consider...
Concerning the snippet above:
More generally: trying to avoid needing a cursor.
I purposely named the cursor variable curs[e], because cursors are a mixed blessing. They can help us implement complicated business rules that may be difficult to express in the declarative form of SQL, but it then brings us to use the procedural (imperative) form of SQL, which is a general feature of SQL which is neither very friendly/expressive, programming-wise, and often less efficient performance-wise.
Maybe you can look into expressing the transformation and filtering desired in the context of a "plain" (declarative) SQL query.
I know this is an older subject, however Mocking a MVC application for unit tests is something we do on very regular basis.
I just wanted to add my experiences Mocking a MVC 3 application using Moq 4 after upgrading to Visual Studio 2013. None of the unit tests were working in debug mode and the HttpContext was showing "could not evaluate expression" when trying to peek at the variables.
Turns out visual studio 2013 has issues evaluating some objects. To get debugging mocked web applications working again, I had to check the "Use Managed Compatibility Mode" in Tools=>Options=>Debugging=>General settings.
I generally do something like this:
public static class FakeHttpContext
{
public static void SetFakeContext(this Controller controller)
{
var httpContext = MakeFakeContext();
ControllerContext context =
new ControllerContext(
new RequestContext(httpContext,
new RouteData()), controller);
controller.ControllerContext = context;
}
private static HttpContextBase MakeFakeContext()
{
var context = new Mock<HttpContextBase>();
var request = new Mock<HttpRequestBase>();
var response = new Mock<HttpResponseBase>();
var session = new Mock<HttpSessionStateBase>();
var server = new Mock<HttpServerUtilityBase>();
var user = new Mock<IPrincipal>();
var identity = new Mock<IIdentity>();
context.Setup(c=> c.Request).Returns(request.Object);
context.Setup(c=> c.Response).Returns(response.Object);
context.Setup(c=> c.Session).Returns(session.Object);
context.Setup(c=> c.Server).Returns(server.Object);
context.Setup(c=> c.User).Returns(user.Object);
user.Setup(c=> c.Identity).Returns(identity.Object);
identity.Setup(i => i.IsAuthenticated).Returns(true);
identity.Setup(i => i.Name).Returns("admin");
return context.Object;
}
}
And initiating the context like this
FakeHttpContext.SetFakeContext(moController);
And calling the Method in the controller straight forward
long lReportStatusID = -1;
var result = moController.CancelReport(lReportStatusID);
Use this:
return RedirectToAction("LogIn", "Account", new { area = "" });
This will redirect to the LogIn
action in the Account
controller in the "global" area.
It's using this RedirectToAction
overload:
protected internal RedirectToRouteResult RedirectToAction(
string actionName,
string controllerName,
Object routeValues
)
This option comes in curl 7.73.0:
curl --create-dirs -O --output-dir /tmp/receipes https://example.com/pancakes.jpg
Here's a flexible method, written in vanilla JS, that allows you to run a CSS selector query over only the direct children of an element:
var count = 0;
function queryChildren(element, selector) {
var id = element.id,
guid = element.id = id || 'query_children_' + count++,
attr = '#' + guid + ' > ',
selector = attr + (selector + '').replace(',', ',' + attr, 'g');
var result = element.parentNode.querySelectorAll(selector);
if (!id) element.removeAttribute('id');
return result;
}
In (at least) Ubuntu when using bash
, it tells you what package you need to install if you type in a command and its not found in your path. My terminal says you need to install 'texinfo' package.
sudo apt-get install texinfo
Hide the body initially, and then show it with jQuery after it has loaded.
body {
display: none;
}
$(function () {
$('body').show();
}); // end ready
Also, it would be best to have $('body').show();
as the last line in your last and main .js file.
As @Charles says, git mv
is a shorthand.
The real question here is "Other version control systems (eg. Subversion and Perforce) treat file renames specially. Why doesn't Git?"
Linus explains at http://permalink.gmane.org/gmane.comp.version-control.git/217 with characteristic tact:
Please stop this "track files" crap. Git tracks exactly what matters, namely "collections of files". Nothing else is relevant, and even thinking that it is relevant only limits your world-view. Notice how the notion of CVS "annotate" always inevitably ends up limiting how people use it. I think it's a totally useless piece of crap, and I've described something that I think is a million times more useful, and it all fell out exactly because I'm not limiting my thinking to the wrong model of the world.
if you lost a "!" in your code ,like this code below, you'll also get this error.
import UIKit
class MemeDetailViewController : UIViewController {
@IBOutlet weak var memeImage: UIImageView!
var meme:Meme! // lost"!"
override func viewWillAppear(animated: Bool) {
super.viewWillAppear(animated)
self.memeImage!.image = meme.memedImage
}
override func viewDidDisappear(animated: Bool) {
super.viewDidDisappear(animated)
}
}
void htod(String hexadecimal)
{
int h = hexadecimal.length() - 1;
int d = 0;
int n = 0;
for(int i = 0; i<hexadecimal.length(); i++)
{
char ch = hexadecimal.charAt(i);
boolean flag = false;
switch(ch)
{
case '1': n = 1; break;
case '2': n = 2; break;
case '3': n = 3; break;
case '4': n = 4; break;
case '5': n = 5; break;
case '6': n = 6; break;
case '7': n = 7; break;
case '8': n = 8; break;
case '9': n = 9; break;
case 'A': n = 10; break;
case 'B': n = 11; break;
case 'C': n = 12; break;
case 'D': n = 13; break;
case 'E': n = 14; break;
case 'F': n = 15; break;
default : flag = true;
}
if(flag)
{
System.out.println("Wrong Entry");
break;
}
d = (int)(n*(Math.pow(16,h))) + (int)d;
h--;
}
System.out.println("The decimal form of hexadecimal number "+hexadecimal+" is " + d);
}
url="jdbc:postgresql//localhost:5432/mmas"
That URL looks wrong, do you need the following?
url="jdbc:postgresql://localhost:5432/mmas"
In case with TextView:
<TextView
android:text="TextView"
android:id="@+id/textView"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:gravity="right"
android:textAlignment="gravity">
</TextView>
in pyqt5 to convert from a ui file to .py file
pyuic5.exe youruifile.ui -o outputpyfile.py -x
From the terminal you can simply do a "postgres list clusters":
pg_lsclusters
It will return Postgres version number, cluster names, ports, status, owner, and the location of your data directories and log file.
A trivial approach would be to replace
<[^>]*>
with nothing. But depending on how ill-structured your input is that may well fail.
first convert your array too JSON
while($query->fetch()){
$col[] = json_encode($row,JSON_UNESCAPED_UNICODE);
}
then vonvert back it to array
foreach($col as &$array){
$array = json_decode($array,true);
}
good luck
git init
git add .
git commit -m "Initial commit"
After this, make a new GitHub repository and follow on-screen instructions.
What you're asking for isn't impossible, but it's probably not what you actually want.
Instead of trying to save the screen output to a file, just write the output to a file instead of to the screen.
Like this:
with open('outfile.txt', 'w') as outfile:
print >>outfile, 'Data collected on:', input['header']['timestamp'].date()
Just add that >>outfile
into all your print statements, and make sure everything is indented under that with
statement.
More generally, it's better to use string formatting rather than magic print
commas, which means you can use the write
function instead. For example:
outfile.write('Data collected on: {}'.format(input['header']['timestamp'].date()))
But if print
is already doing what you want as far as formatting goes, you can stick with it for now.
What if you've got some Python script someone else wrote (or, worse, a compiled C program that you don't have the source to) and can't make this change? Then the answer is to wrap it in another script that captures its output, with the subprocess
module. Again, you probably don't want that, but if you do:
output = subprocess.check_output([sys.executable, './otherscript.py'])
with open('outfile.txt', 'wb') as outfile:
outfile.write(output)
The CPPFLAGS
macro is the one to use to specify #include
directories.
Both CPPFLAGS
and CFLAGS
work in your case because the make
(1) rule combines both preprocessing and compiling in one command (so both macros are used in the command).
You don't need to specify .
as an include-directory if you use the form #include "..."
. You also don't need to specify the standard compiler include directory. You do need to specify all other include-directories.
You can use label instead of textblock.
<Label Content="Hello, World!">
<Label.LayoutTransform>
<RotateTransform Angle="270"/>
</Label.LayoutTransform>
</Label>
You need to enclose your class in {
and }
. A few extra pointers: According to the Java coding conventions, you should
{
on the same line as the method declaration:Here's how I would write it:
public class ModMyMod extends BaseMod {
public String version() {
return "1.2_02";
}
public void addRecipes(CraftingManager recipes) {
recipes.addRecipe(new ItemStack(Item.diamond), new Object[] {
"#", Character.valueOf('#'), Block.dirt
});
}
}
I had this issue with npm v1.1.4
(and node v0.6.12
), which are the Ubuntu 12.04
repository versions.
It looks like that version of npm
isn't supported any more, updating node (and npm with it) resolved the issue.
First, uninstall the outdated version (optional, but I think this fixed an issue I was having with global modules not being pathed in).
sudo apt-get purge nodejs npm
Then enable nodesource's repo and install:
curl -sL https://deb.nodesource.com/setup | sudo bash -
sudo apt-get install -y nodejs
Note - the previous advice was to use Chris Lea's repo, he's now migrated that to nodesource, see:
From: here
Try this one. It replaces all the matches with a -
.
String str = "helloslkhellodjladfjhello";
String findStr = "hello";
int numberOfMatches = 0;
while (str.contains(findStr)){
str = str.replaceFirst(findStr, "-");
numberOfMatches++;
}
And if you don't want to destroy your str
you can create a new string with the same content:
String str = "helloslkhellodjladfjhello";
String strDestroy = str;
String findStr = "hello";
int numberOfMatches = 0;
while (strDestroy.contains(findStr)){
strDestroy = strDestroy.replaceFirst(findStr, "-");
numberOfMatches++;
}
After executing this block these will be your values:
str = "helloslkhellodjladfjhello"
strDestroy = "-slk-djladfj-"
findStr = "hello"
numberOfMatches = 3
Use window.open("file2.html");
Syntax
var windowObjectReference = window.open(strUrl, strWindowName[, strWindowFeatures]);
Return value and parameters
windowObjectReference
A reference to the newly created window. If the call failed, it will be null. The reference can be used to access properties and methods of the new window provided it complies with Same origin policy security requirements.
strUrl
The URL to be loaded in the newly opened window. strUrl
can be an HTML document on the web, image file or any resource supported by the browser.
strWindowName
A string name for the new window. The name can be used as the target of links and forms using the target attribute of an <a>
or <form>
element. The name should not contain any blank space. Note that strWindowName
does not specify the title of the new window.
strWindowFeatures
Optional parameter listing the features (size, position, scrollbars, etc.) of the new window. The string must not contain any blank space, each feature name and value must be separated by a comma.
@bobflux's answer is great. I would like to extend it by adding a complete query that uses proposed approach.
select tt.id, tt.x_field
from target_table as tt
-- Here we join our target_table with order_table to specify custom ordering.
left join
(values ('f', 1), ('p', 2), ('i', 3), ('a', 4)) as order_table (x_field, order_num)
on order_table.x_field = tt.x_field
order by
order_table.order_num, -- Here we order values by our custom order.
tt.x_field; -- Other values can be ordered alphabetically, for example.
Here is complete demo.
UPDATE
Just a quick note, as I can see this looks really stupid, and it has no good use with pure PHP because the array_merge
just works there. BUT try it with the PHP MongoDB driver before you rush to downvote. That dude WILL add indexes for whatever reason, and WILL ruin the merged object. With my naïve little function, the merge comes out exactly the way it was supposed to with a traditional array_merge
.
I know it's an old question but I'd like to add one more case I had recently with MongoDB driver queries and none of array_merge
, array_replace
nor array_push
worked. I had a bit complex structure of objects wrapped as arrays in array:
$a = [
["a" => [1, "a2"]],
["b" => ["b1", 2]]
];
$t = [
["c" => ["c1", "c2"]],
["b" => ["b1", 2]]
];
And I needed to merge them keeping the same structure like this:
$merged = [
["a" => [1, "a2"]],
["b" => ["b1", 2]],
["c" => ["c1", "c2"]],
["b" => ["b1", 2]]
];
The best solution I came up with was this:
public static function glueArrays($arr1, $arr2) {
// merges TWO (2) arrays without adding indexing.
$myArr = $arr1;
foreach ($arr2 as $arrayItem) {
$myArr[] = $arrayItem;
}
return $myArr;
}
In my case it was concurrent access to one Hibernate Session from several threads. I had the Spring Boot Batch and RepositoryItemReader implementation where I fetched entities by page request with size 10.
For example my entities are:
@Entity
class JobEntity {
@ManyToOne(fetch = FetchType.LAZY)
private GroupEntity group;
}
@Entity
class GroupEntity {
@OneToMany(mappedBy = "group", cascade = CascadeType.ALL, fetch = FetchType.LAZY, orphanRemoval = true)
private Set<Config> configs;
}
Batch process: reader -> processor -> writer
in one transaction.
In that entities configuration, GroupEntity can escapes to other threads:
First thread that entered to read section fetches the page of JobEntity with size 10 (RepositoryItemReader#doRead), this items contain one shared GroupEntity object (because all of them pointed to the same group id). Then it takes the first entity. Next threads that come to read section take JobEntity from this page one by one, until this page will be exhausted.
So now threads have access to the same GroupEntity instance thought the JobEntity instances, that is unsafe multi thread access to the one Hibernate Session.
I would do something like:
select
A.id, A.age, B.count
from
students A,
(select age, count(*) as count from students group by age) B
where A.age=B.age;
A common case for simply setting -fpermissive and not sweating it exists: the thoroughly-tested and working third-party library that won't compile on newer compiler versions without -fpermissive. These libraries exist, and are very likely not the application developer's problem to solve, nor in the developer's schedule budget to do it.
Set -fpermissive and move on in that case.
This is the Smallest and easiest code.
var minDate = new Date();
minDate.setMonth(minDate.getMonth() - 3);
Declare variable which has current date. then just by using setMonth inbuilt function we can get 3 month back date.
$ kubectl replace --force -f <resource-file>
if all goes well, you should see something like:
<resource-type> <resource-name> deleted
<resource-type> <resource-name> replaced
details of this can be found in the Kubernetes documentation, "manage-deployment" and kubectl-cheatsheet pages at the time of writing.
Here is a good starting point.
HTML:
<div class="containing-table">
<div class="centre-align">
<div class="content"></div>
</div>
</div>
CSS:
.containing-table {
display: table;
width: 100%;
height: 400px; /* for demo only */
border: 1px dotted blue;
}
.centre-align {
padding: 10px;
border: 1px dashed gray;
display: table-cell;
text-align: center;
vertical-align: middle;
}
.content {
width: 50px;
height: 50px;
background-color: red;
display: inline-block;
vertical-align: top; /* Removes the extra white space below the baseline */
}
See demo at: http://jsfiddle.net/audetwebdesign/jSVyY/
.containing-table
establishes the width and height context for .centre-align
(the table-cell).
You can apply text-align
and vertical-align
to alter .centre-align
as needed.
Note that .content
needs to use display: inline-block
if it is to be centered horizontally using the text-align property.
git checkout old_branch
git branch new_branch
This will give you a new branch "new_branch" with the same state as "old_branch".
This command can be combined to the following:
git checkout -b new_branch old_branch
Generally you should watch out for deeply nested objects in React state. To avoid unexpected behavior, the state should be updated immutably. When you have deep objects, you end up deep cloning them for immutability, which can be quite expensive in React. Why?
Once you deep clone the state, React will recalculate and re-render everything that depends on the variables, even though they haven't changed!
So, before trying to solve your issue, think how you can flatten the state first. As soon as you do that, you will find beautiful tools that will help dealing with large states, such as useReducer().
In case you thought about it, but are still convinced you need to use a deeply nested state tree, you can still use useState() with libraries like immutable.js and Immutability-helper. They make it simple to update or clone deep objects without having to worry about mutability.
Use var
instead of int
for your clicks
variable generation and onClick
instead of click
as your function name:
var clicks = 0;
function onClick() {
clicks += 1;
document.getElementById("clicks").innerHTML = clicks;
};
_x000D_
<button type="button" onClick="onClick()">Click me</button>
<p>Clicks: <a id="clicks">0</a></p>
_x000D_
In JavaScript variables are declared with the var
keyword. There are no tags like int
, bool
, string
... to declare variables. You can get the type of a variable with 'typeof(yourvariable)', more support about this you find on Google.
And the name 'click' is reserved by JavaScript for function names so you have to use something else.
The vscode codebase does not use relative paths, but everything works fine for them
Really depends on your module loader. If you are using systemjs
with baseurl
then it would work. VSCode uses its own custom module loader (based on an old version of requirejs).
Use relative paths as that is what commonjs
supports. If you move files around you will get a typescript compile time error (a good thing) so you will be better off than a great majority of pure js projects out there (on npm).
You can accomplish that now with display: grid
:
.list {_x000D_
display: grid;_x000D_
overflow: hidden;_x000D_
grid-template-columns: repeat(3, 1fr);_x000D_
grid-auto-rows: 1fr;_x000D_
grid-column-gap: 5px;_x000D_
grid-row-gap: 5px;_x000D_
max-width: 500px;_x000D_
}_x000D_
.list-item {_x000D_
background-color: #ccc;_x000D_
display: flex;_x000D_
padding: 0.5em;_x000D_
margin-bottom: 20px;_x000D_
}_x000D_
.list-content {_x000D_
width: 100%;_x000D_
}
_x000D_
<ul class="list">_x000D_
<li class="list-item">_x000D_
<div class="list-content">_x000D_
<h2>box 1</h2>_x000D_
<p>Lorem ipsum dolor sit amet, consectetur adipisicing elit.</p>_x000D_
</div>_x000D_
</li>_x000D_
<li class="list-item">_x000D_
<div class="list-content">_x000D_
<h3>box 2</h3>_x000D_
<p>Lorem ipsum dolor sit amet, consectetur adipisicing elit.</p>_x000D_
</div>_x000D_
</li>_x000D_
_x000D_
<li class="list-item">_x000D_
<div class="list-content">_x000D_
<h3>box 2</h3>_x000D_
<p>Lorem ipsum dolor</p>_x000D_
</div>_x000D_
</li>_x000D_
_x000D_
<li class="list-item">_x000D_
<div class="list-content">_x000D_
<h3>box 2</h3>_x000D_
<p>Lorem ipsum dolor</p>_x000D_
</div>_x000D_
</li>_x000D_
<li class="list-item">_x000D_
<div class="list-content">_x000D_
<h1>h1</h1>_x000D_
</div>_x000D_
</li>_x000D_
</ul>
_x000D_
Although the grid itself is not flexbox, it behaves very similar to a flexbox container, and the items inside the grid can be flex.
The grid layout is also very handy in the case you want responsive grids. That is, if you want the grid to have a different number of columns per row you can then just change grid-template-columns
:
grid-template-columns: repeat(1, 1fr); // 1 column
grid-template-columns: repeat(2, 1fr); // 2 columns
grid-template-columns: repeat(3, 1fr); // 3 columns
and so on...
You can mix it with media queries and change according to the size of the page.
Sadly there is still no support for container queries / element queries in the browsers (out of the box) to make it work well with changing the number of columns according to the container size, not to the page size (this would be great to use with reusable webcomponents).
More information about the grid layout:
https://developer.mozilla.org/en-US/docs/Web/CSS/CSS_Grid_Layout
Support of the Grid Layout accross browsers:
I had this problem before, and solved it according to React official page isMounted is an Antipattern.
Set a property isMounted
flag to be true in componentDidMount
, and toggle it false in componentWillUnmount
. When you setState()
in your callbacks, check isMounted
first! It works for me.
state = {
isMounted: false
}
componentDidMount() {
this.setState({isMounted: true})
}
componentWillUnmount(){
this.setState({isMounted: false})
}
callback:
if (this.state.isMounted) {
this.setState({'time': remainTimeInfo});}
First you have to ensure that there is a SMTP server listening on port 25.
To look whether you have the service, you can try using TELNET client, such as:
C:\> telnet localhost 25
(telnet client by default is disabled on most recent versions of Windows, you have to add/enable the Windows component from Control Panel. In Linux/UNIX usually telnet client is there by default.
$ telnet localhost 25
If it waits for long then time out, that means you don't have the required SMTP service. If successfully connected you enter something and able to type something, the service is there.
If you don't have the service, you can use these:
If you are sure that you already have the service, may be the SMTP requires additional security credentials. If you can tell me what SMTP server listening on port 25 I may be able to tell you more.
Set<String> keyList = new HashSet();
Pattern regex = Pattern.compile("#\\{(.*?)\\}");
Matcher matcher = regex.matcher("Content goes here");
while(matcher.find()) {
keyList.add(matcher.group(1));
}
return keyList;
It appears to be relate to the graphics driver. In the emulator configuration, changing Emulated Graphics to Software - GLES 2.0
caused the crashes to stop.
To loop through all matches, you can use the replace
function:
var re = /\s*([^[:]+):\"([^"]+)"/g;
var s = '[description:"aoeu" uuid:"123sth"]';
s.replace(re, function(match, g1, g2) { console.log(g1, g2); });
HttpWebRequest request = (HttpWebRequest)WebRequest.Create("https://www.google.com");
request.Method = "GET";
HttpWebResponse response = (HttpWebResponse)request.GetResponse();
Stream dataStream = response.GetResponseStream();
StreamReader reader = new StreamReader(dataStream);
string strResponse = reader.ReadToEnd();
None of these answers solved my problem, which was that the items weren't the same width in my makeshift flexbox table when it was shrunk to a width too small.
The solution for me was simply to put overflow: hidden;
on the flex-grow: 1;
cells.
<select name="career" id="career" onchange="location = this.value;">
<option value="resume" selected> All Applications </option>
<option value="resume&j=14">Seo Expert</option>
<option value="resume&j=21">Project Manager</option>
<option value="resume&j=33">Php Developer</option>
</select>
Look for GSpread.NET. You can work with Google Spreadsheets by using API from Microsoft Excel. You don't need to rewrite old code with the new Google API usage. Just add a few row:
Set objExcel = CreateObject("GSpreadCOM.Application");
app.MailLogon(Name, ClientIdAndSecret, ScriptId);
It's an OpenSource project and it doesn't require Office to be installed.
The documentation available over here http://scand.com/products/gspread/index.html
if you remove the float: left
from the a
and add white-space: nowrap
to the outer div
#myWorkContent{
width:530px;
height:210px;
border: 13px solid #bed5cd;
overflow-x: scroll;
overflow-y: hidden;
white-space: nowrap;
}
#myWorkContent a {
display: inline;
}
this should work for any size or amount of images..
or even:
#myWorkContent a {
display: inline-block;
vertical-align: middle;
}
which would also vertically align images of different heights if required
I've come up with a single line of code to set at top of my every php script as to compensate:
<?php if(!$root) for($i=count(explode("/",$_SERVER["PHP_SELF"]));$i>2;$i--) $root .= "../"; ?>
By this building $root to bee "../" steps up in hierarchy from wherever the file is placed. Whenever I want to include with an absolut path the line will be:
<?php include($root."some/include/directory/file.php"); ?>
I don't really like it, seems as an awkward way to solve it, but it seem to work whatever system php runs on and wherever the file is placed, making it system independent.
To reach files outside the web directory add some more ../
after $root
, e.g. $root."../external/file.txt"
.
Should a dictionary like:
{'red': '0.500', 'yellow': '0.250, 'blue': '0.125'}
be required out of a dataframe like:
a b
0 red 0.500
1 yellow 0.250
2 blue 0.125
simplest way would be to do:
dict(df.values)
working snippet below:
import pandas as pd
df = pd.DataFrame({'a': ['red', 'yellow', 'blue'], 'b': [0.5, 0.25, 0.125]})
dict(df.values)
The accepted answer neglects to set a parent attribute for each node inserted, without which one cannot implement a successor
method which finds the successor in an in-order tree walk in O(h) time, where h is the height of the tree (as opposed to the O(n) time needed for the walk).
Here is an implementation based on the pseudocode given in Cormen et al., Introduction to Algorithms, including assignment of a parent
attribute and a successor
method:
class Node(object):
def __init__(self, key):
self.key = key
self.left = None
self.right = None
self.parent = None
class Tree(object):
def __init__(self, root=None):
self.root = root
def insert(self, z):
y = None
x = self.root
while x is not None:
y = x
if z.key < x.key:
x = x.left
else:
x = x.right
z.parent = y
if y is None:
self.root = z # Tree was empty
elif z.key < y.key:
y.left = z
else:
y.right = z
@staticmethod
def minimum(x):
while x.left is not None:
x = x.left
return x
@staticmethod
def successor(x):
if x.right is not None:
return Tree.minimum(x.right)
y = x.parent
while y is not None and x == y.right:
x = y
y = y.parent
return y
Here are some tests to show that the tree behaves as expected for the example given by DTing:
import pytest
@pytest.fixture
def tree():
t = Tree()
t.insert(Node(3))
t.insert(Node(1))
t.insert(Node(7))
t.insert(Node(5))
return t
def test_tree_insert(tree):
assert tree.root.key == 3
assert tree.root.left.key == 1
assert tree.root.right.key == 7
assert tree.root.right.left.key == 5
def test_tree_successor(tree):
assert Tree.successor(tree.root.left).key == 3
assert Tree.successor(tree.root.right.left).key == 7
if __name__ == "__main__":
pytest.main([__file__])
I also met this problem while using Xshell to connect Linux server.
After seaching for methods, I find Xming + Xshell to solve image imshow problem with matplotlib.
If solutions aboved can't solve your problem, just try to download Xming under the condition you're using Xshell. Then set the attribute in Xshell, SSH->tunnel->X11transfer->choose X DISPLAY localhost:0.0
Try add it on AppDelegate.swift (inside application method):
UITabBar.appearance().tintColor = UIColor(red: 0/255.0, green: 0/255.0, blue: 0/255.0, alpha: 1.0)
// For WHITE color:
UITabBar.appearance().tintColor = UIColor(red: 255/255.0, green: 255/255.0, blue: 255/255.0, alpha: 1.0)
Example:
func application(application: UIApplication, didFinishLaunchingWithOptions launchOptions: [NSObject: AnyObject]?) -> Bool {
// Tab bar icon selected color
UITabBar.appearance().tintColor = UIColor(red: 0/255.0, green: 0/255.0, blue: 0/255.0, alpha: 1.0)
// For WHITE color: UITabBar.appearance().tintColor = UIColor(red: 255/255.0, green: 255/255.0, blue: 255/255.0, alpha: 1.0)
return true
}
Example:
My english is so bad! I'm sorry! :-)
A very simple example:
SET a=Hello
SET b=World
SET c=%a% %b%!
echo %c%
The result should be:
Hello World!
I am using Windows 10 and overcame this issue by running the pip install mysql-connector
command in Windows PowerShell rather than the Command Prompt.
I had an issue with turning off a background image (a DRAFT watermark) in VBA. My change wasn't showing up (which was performed with the Sheets(1).PageSetup.CenterHeader = ""
method) - so I needed a way to refresh. The ActiveSheet.EnableCalculation
approach partly did the trick, but didn't cover unused cells.
In the end I found what I needed with a one liner that made the image vanish when it was no longer set :-
Application.ScreenUpdating = True
For those of you who would rather not go with Regex and are on the .NET 2.0 Framework (AKA no LINQ):
Only Letters:
public static bool IsAllLetters(string s)
{
foreach (char c in s)
{
if (!Char.IsLetter(c))
return false;
}
return true;
}
Only Numbers:
public static bool IsAllDigits(string s)
{
foreach (char c in s)
{
if (!Char.IsDigit(c))
return false;
}
return true;
}
Only Numbers Or Letters:
public static bool IsAllLettersOrDigits(string s)
{
foreach (char c in s)
{
if (!Char.IsLetterOrDigit(c))
return false;
}
return true;
}
Only Numbers Or Letters Or Underscores:
public static bool IsAllLettersOrDigitsOrUnderscores(string s)
{
foreach (char c in s)
{
if (!Char.IsLetterOrDigit(c) && c != '_')
return false;
}
return true;
}
Fontawesome has a perfect solution to this.
I implemented the same. just on your main .css file add this
.gi-2x{font-size: 2em;}
.gi-3x{font-size: 3em;}
.gi-4x{font-size: 4em;}
.gi-5x{font-size: 5em;}
In your example you just have to do this.
<div class = "jumbotron">
<span class="glyphicon glyphicon-globe gi-5x"></span>
</div>
Judging from other answers, no one except @rob-kennedy talked about the call_args_list
.
It's a powerful tool for that you can implement the exact contrary of MagicMock.assert_called_with()
call_args_list
is a list of call
objects. Each call
object represents a call made on a mocked callable.
>>> from unittest.mock import MagicMock
>>> m = MagicMock()
>>> m.call_args_list
[]
>>> m(42)
<MagicMock name='mock()' id='139675158423872'>
>>> m.call_args_list
[call(42)]
>>> m(42, 30)
<MagicMock name='mock()' id='139675158423872'>
>>> m.call_args_list
[call(42), call(42, 30)]
Consuming a call
object is easy, since you can compare it with a tuple of length 2 where the first component is a tuple containing all the positional arguments of the related call, while the second component is a dictionary of the keyword arguments.
>>> ((42,),) in m.call_args_list
True
>>> m(42, foo='bar')
<MagicMock name='mock()' id='139675158423872'>
>>> ((42,), {'foo': 'bar'}) in m.call_args_list
True
>>> m(foo='bar')
<MagicMock name='mock()' id='139675158423872'>
>>> ((), {'foo': 'bar'}) in m.call_args_list
True
So, a way to address the specific problem of the OP is
def test_something():
with patch('something') as my_var:
assert ((some, args),) not in my_var.call_args_list
Note that this way, instead of just checking if a mocked callable has been called, via MagicMock.called
, you can now check if it has been called with a specific set of arguments.
That's useful. Say you want to test a function that takes a list and call another function, compute()
, for each of the value of the list only if they satisfy a specific condition.
You can now mock compute
, and test if it has been called on some value but not on others.
DATEADD (datepart , number , date )
declare @num_hours int;
set @num_hours = 5;
select dateadd(HOUR, @num_hours, getdate()) as time_added,
getdate() as curr_date
function useAdress () {
var id = $("#choose-address-table").find(".nr:first").text();
alert (id);
$("#resultas").append(id); // Testing: append the contents of the td to a div
};
then on your button:
onclick="useAdress()"
I not be able to find squid number in sonar 5.6, with this annotation also works:
@SuppressWarnings({"pmd:AvoidCatchingGenericException", "checkstyle:com.puppycrawl.tools.checkstyle.checks.coding.IllegalCatchCheck"})
Some sample code for animating an expand/collapse action using a table view section header is provided by Apple at Table View Animations and Gestures.
The key to this approach is to implement
- (UIView *)tableView:(UITableView *)tableView viewForHeaderInSection:(NSInteger)section
and return a custom UIView which includes a button (typically the same size as the header view itself). By subclassing UIView and using that for the header view (as this sample does), you can easily store additional data such as the section number.
Use any examples that don't insert each element one at a time, one insertion is most efficient
$('.element').html( '<span>' + array.join('</span><span>')+'</span>');
A lot of things can configured in applicationproperties. Unfortunately this feature only in Version 1.3, but you can add in a Config-Class
@Autowired(required = true)
public void configureJackson(ObjectMapper jackson2ObjectMapper) {
jackson2ObjectMapper.setSerializationInclusion(JsonInclude.Include.NON_NULL);
}
[UPDATE: You must work on the ObjectMapper because the build()
-method is called before the config is runs.]
You can't. You need to create another php script to return the image data, e.g. getImage.php. Change catalog.php to:
<body>
<img src="getImage.php?id=1" width="175" height="200" />
</body>
Then getImage.php is
<?php
$id = $_GET['id'];
// do some validation here to ensure id is safe
$link = mysql_connect("localhost", "root", "");
mysql_select_db("dvddb");
$sql = "SELECT dvdimage FROM dvd WHERE id=$id";
$result = mysql_query("$sql");
$row = mysql_fetch_assoc($result);
mysql_close($link);
header("Content-type: image/jpeg");
echo $row['dvdimage'];
?>
Depending on what you want to achieve, Boost.Config might help you. It does not provide detection of the standard-version, but it provides macros that let you check for support of specific language/compiler-features.
js:
var array = fs.readFileSync('file.txt', 'utf8').split('\n');
ts:
var array = fs.readFileSync('file.txt', 'utf8').toString().split('\n');
You can add a function to String Object
//Add this wherever you like in your javascript code
String.prototype.isEmail = function() {
return !!this.match(/^\w+@[a-zA-Z_]+?\.[a-zA-Z]{2,3}$/);
}
var user_email = "[email protected]";
if(user_email.isEmail()) {
//Email is valid !
} else {
//Email is invalid !
}
If you want multiple values in ES6+ the following will work
objArray = [ { foo: 1, bar: 2, baz: 9}, { foo: 3, bar: 4, baz: 10}, { foo: 5, bar: 6, baz: 20} ];
let result = objArray.map(({ foo, baz }) => ({ foo, baz }))
This works as {foo, baz}
on the left is using object destructoring and on the right side of the arrow is equivalent to {foo: foo, baz: baz}
due to ES6's enhanced object literals.
I had the same error. Creating a new AVD with the appropriate API level solved my problem.
this function takes the number and precision and returns the rounded off number
float roundoff(float num,int precision)
{
int temp=(int )(num*pow(10,precision));
int num1=num*pow(10,precision+1);
temp*=10;
temp+=5;
if(num1>=temp)
num1+=10;
num1/=10;
num1*=10;
num=num1/pow(10,precision+1);
return num;
}
it converts the floating point number into int by left shifting the point and checking for the greater than five condition.
WeekMonth = CASE WHEN (DATEPART(day,TestDate) - datepart(dw,TestDate))>= 22 THEN '5'
WHEN (DATEPART(day,TestDate) - datepart(dw,TestDate))>= 15 THEN '4'
WHEN (DATEPART(day,TestDate) - datepart(dw,TestDate))>= 8 THEN '3'
WHEN (DATEPART(day,TestDate) - datepart(dw,TestDate))>= 1 THEN '2'
ELSE '1'
END
Here's a solution in pure PIL.
def blend_value(under, over, a):
return (over*a + under*(255-a)) / 255
def blend_rgba(under, over):
return tuple([blend_value(under[i], over[i], over[3]) for i in (0,1,2)] + [255])
white = (255, 255, 255, 255)
im = Image.open(object.logo.path)
p = im.load()
for y in range(im.size[1]):
for x in range(im.size[0]):
p[x,y] = blend_rgba(white, p[x,y])
im.save('/tmp/output.png')
You can snoop around in your memory using RTLMoveMemory and retrieve the desired information directly from there:
32-Bit:
Option Explicit
'Provide direct memory access:
Public Declare Sub MemCopy Lib "kernel32" Alias "RtlMoveMemory" ( _
ByVal Destination As Long, _
ByVal Source As Long, _
ByVal Length As Long)
Function CollectionKeys(oColl As Collection) As String()
'Declare Pointer- / Memory-Address-Variables
Dim CollPtr As Long
Dim KeyPtr As Long
Dim ItemPtr As Long
'Get MemoryAddress of Collection Object
CollPtr = VBA.ObjPtr(oColl)
'Peek ElementCount
Dim ElementCount As Long
ElementCount = PeekLong(CollPtr + 16)
'Verify ElementCount
If ElementCount <> oColl.Count Then
'Something's wrong!
Stop
End If
'Declare Simple Counter
Dim index As Long
'Declare Temporary Array to hold our keys
Dim Temp() As String
ReDim Temp(ElementCount)
'Get MemoryAddress of first CollectionItem
ItemPtr = PeekLong(CollPtr + 24)
'Loop through all CollectionItems in Chain
While Not ItemPtr = 0 And index < ElementCount
'increment Index
index = index + 1
'Get MemoryAddress of Element-Key
KeyPtr = PeekLong(ItemPtr + 16)
'Peek Key and add to temporary array (if present)
If KeyPtr <> 0 Then
Temp(index) = PeekBSTR(KeyPtr)
End If
'Get MemoryAddress of next Element in Chain
ItemPtr = PeekLong(ItemPtr + 24)
Wend
'Assign temporary array as Return-Value
CollectionKeys = Temp
End Function
'Peek Long from given MemoryAddress
Public Function PeekLong(Address As Long) As Long
If Address = 0 Then Stop
Call MemCopy(VBA.VarPtr(PeekLong), Address, 4&)
End Function
'Peek String from given MemoryAddress
Public Function PeekBSTR(Address As Long) As String
Dim Length As Long
If Address = 0 Then Stop
Length = PeekLong(Address - 4)
PeekBSTR = Space(Length \ 2)
Call MemCopy(VBA.StrPtr(PeekBSTR), Address, Length)
End Function
64-Bit:
Option Explicit
'Provide direct memory access:
Public Declare PtrSafe Sub MemCopy Lib "kernel32" Alias "RtlMoveMemory" ( _
ByVal Destination As LongPtr, _
ByVal Source As LongPtr, _
ByVal Length As LongPtr)
Function CollectionKeys(oColl As Collection) As String()
'Declare Pointer- / Memory-Address-Variables
Dim CollPtr As LongPtr
Dim KeyPtr As LongPtr
Dim ItemPtr As LongPtr
'Get MemoryAddress of Collection Object
CollPtr = VBA.ObjPtr(oColl)
'Peek ElementCount
Dim ElementCount As Long
ElementCount = PeekLong(CollPtr + 28)
'Verify ElementCount
If ElementCount <> oColl.Count Then
'Something's wrong!
Stop
End If
'Declare Simple Counter
Dim index As Long
'Declare Temporary Array to hold our keys
Dim Temp() As String
ReDim Temp(ElementCount)
'Get MemoryAddress of first CollectionItem
ItemPtr = PeekLongLong(CollPtr + 40)
'Loop through all CollectionItems in Chain
While Not ItemPtr = 0 And index < ElementCount
'increment Index
index = index + 1
'Get MemoryAddress of Element-Key
KeyPtr = PeekLongLong(ItemPtr + 24)
'Peek Key and add to temporary array (if present)
If KeyPtr <> 0 Then
Temp(index) = PeekBSTR(KeyPtr)
End If
'Get MemoryAddress of next Element in Chain
ItemPtr = PeekLongLong(ItemPtr + 40)
Wend
'Assign temporary array as Return-Value
CollectionKeys = Temp
End Function
'Peek Long from given Memory-Address
Public Function PeekLong(Address As LongPtr) As Long
If Address = 0 Then Stop
Call MemCopy(VBA.VarPtr(PeekLong), Address, 4^)
End Function
'Peek LongLong from given Memory Address
Public Function PeekLongLong(Address As LongPtr) As LongLong
If Address = 0 Then Stop
Call MemCopy(VBA.VarPtr(PeekLongLong), Address, 8^)
End Function
'Peek String from given MemoryAddress
Public Function PeekBSTR(Address As LongPtr) As String
Dim Length As Long
If Address = 0 Then Stop
Length = PeekLong(Address - 4)
PeekBSTR = Space(Length \ 2)
Call MemCopy(VBA.StrPtr(PeekBSTR), Address, CLngLng(Length))
End Function
For me this worked after I downloaded AJAX Unobtrusive library via NuGet :
Search and install via NuGet Packages: Microsoft.jQuery.Unobtrusive.Ajax
Than add in the view the references to jquery and AJAX Unobtrusive:
@Scripts.Render("~/bundles/jquery")
<script src="~/Scripts/jquery.unobtrusive-ajax.min.js"> </script>
Next the Ajax ActionLink and the div were we want to render the results:
@Ajax.ActionLink(
"Click Here to Load the Partial View",
"ActionName",
null,
new AjaxOptions { UpdateTargetId = "toUpdate" }
)
<div id="toUpdate"></div>
Use dev.new()
. (See this related question.)
plot(1:10)
dev.new(width=5, height=4)
plot(1:20)
To be more specific which units are used:
dev.new(width=5, height=4, unit="in")
plot(1:20)
dev.new(width = 550, height = 330, unit = "px")
plot(1:15)
edit additional argument for Rstudio (May 2020), (thanks user Soren Havelund Welling)
For Rstudio, add dev.new(width=5,height=4,noRStudioGD = TRUE)
Use a list comprehension:
res_list = [x[0] for x in rows]
Below is a demonstration:
>>> rows = [(1, 2), (3, 4), (5, 6)]
>>> [x[0] for x in rows]
[1, 3, 5]
>>>
Alternately, you could use unpacking instead of x[0]
:
res_list = [x for x,_ in rows]
Below is a demonstration:
>>> lst = [(1, 2), (3, 4), (5, 6)]
>>> [x for x,_ in lst]
[1, 3, 5]
>>>
Both methods practically do the same thing, so you can choose whichever you like.
Unfortunately we need to run docker-compose logs
separately from docker-compose run
. In order to get this to work reliably we need to suppress the docker-compose run
exit status then redirect the log and exit with the right status.
#!/bin/bash
set -euo pipefail
docker-compose run app | tee app.log || failed=yes
docker-compose logs --no-color > docker-compose.log
[[ -z "${failed:-}" ]] || exit 1
A great real-world example of where lazy loading comes in handy is with ORM's (Object Relation Mappers) such as Entity Framework and NHibernate.
Say you have an entity Customer which has properties for Name, PhoneNumber, and Orders. Name and PhoneNumber are regular strings but Orders is a navigation property that returns a list of every order the customer ever made.
You often might want to go through all your customer's and get their name and phone number to call them. This is a very quick and simple task, but imagine if each time you created a customer it automatically went and did a complex join to return thousands of orders. The worst part is that you aren't even going to use the orders so it is a complete waste of resources!
This is the perfect place for lazy loading because if the Order property is lazy it will not go fetch all the customer's order unless you actually need them. You can enumerate the Customer objects getting only their Name and Phone Number while the Order property is patiently sleeping, ready for when you need it.
There's a jQuery Timer plugin you may want to try
You either need to keep creating new objects, or clone the existing one. See What is the most efficient way to deep clone an object in JavaScript? for how to clone.
Here's a snippet which I wrote which performs the same functionality.
This code is similar to the one written by Kunal Wadhwa.
char *dynamicCharString()
{
char *str, c;
int i;
str = (char*)malloc(1*sizeof(char));
while(c = getc(stdin),c!='\n')
{
str[i] = c;
i++;
realloc(str,i*sizeof(char));
}
str[i] = '\0';
return str;
}
Welcome to 2019 and the /u
modifier in regex which will handle UTF-8 multibyte chars for you
If you only use mb_convert_encoding($value, 'UTF-8', 'UTF-8')
you will still end up with non-printable chars in your string
This method will:
mb_convert_encoding
\r
, \x00
(NULL-byte) and other control chars with preg_replace
function utf8_filter(string $value): string{
return preg_replace('/[^[:print:]\n]/u', '', mb_convert_encoding($value, 'UTF-8', 'UTF-8'));
}
[:print:]
match all printable chars and \n
newlines and strip everything else
You can see the ASCII table below.. The printable chars range from 32 to 127, but newline \n
is a part of the control chars which range from 0 to 31 so we have to add newline to the regex /[^[:print:]\n]/u
You can try to send strings through the regex with chars outside the printable range like \x7F
(DEL), \x1B
(Esc) etc. and see how they are stripped
function utf8_filter(string $value): string{
return preg_replace('/[^[:print:]\n]/u', '', mb_convert_encoding($value, 'UTF-8', 'UTF-8'));
}
$arr = [
'Danish chars' => 'Hello from Denmark with æøå',
'Non-printable chars' => "\x7FHello with invalid chars\r \x00"
];
foreach($arr as $k => $v){
echo "$k:\n---------\n";
$len = strlen($v);
echo "$v\n(".$len.")\n";
$strip = utf8_decode(utf8_filter(utf8_encode($v)));
$strip_len = strlen($strip);
echo $strip."\n(".$strip_len.")\n\n";
echo "Chars removed: ".($len - $strip_len)."\n\n\n";
}
NAudio wraps the WaveOutXXXX API. I haven't looked at the source, but if NAudio exposes the waveOutWrite() function in a way that doesn't automatically stop playback on each call, then you should be able to do what you really want, which is to start playing the audio stream before you've received all the data.
Using the waveOutWrite() function allows you to "read ahead" and dump smaller chunks of audio into the output queue - Windows will automatically play the chunks seamlessly. Your code would have to take the compressed audio stream and convert it to small chunks of WAV audio on the fly; this part would be really difficult - all the libraries and components I've ever seen do MP3-to-WAV conversion an entire file at a time. Probably your only realistic chance is to do this using WMA instead of MP3, because you can write simple C# wrappers around the multimedia SDK.
I was recently working on creating a website involving recaptcha v2 and I have a need to do test automation on my localhost. I did not add any ip or localhost into recaptcha admin portal.
Follow the below steps
Log in to recaptcha admin site screenshot
Locate Key Settings
Click on advanced settings
Under Domain Name Validation, un-check Verify the origin of reCAPTCHA solutions checkbox. This option is used to verifying requests come from one of the above listed domains.
Please note that, If disabled, you are required to check the host-name on your server when verifying a solution.
I created a new key and disable this and use this key for testing in localhost.
This is a sample page which implements reCAPTCHA for comments.
As far as the Python languages is concerned, _
has no special meaning. It is a valid identifier just like _foo
, foo_
or _f_o_o_
.
Any special meaning of _
is purely by convention. Several cases are common:
A dummy name when a variable is not intended to be used, but a name is required by syntax/semantics.
# iteration disregarding content
sum(1 for _ in some_iterable)
# unpacking disregarding specific elements
head, *_ = values
# function disregarding its argument
def callback(_): return True
Many REPLs/shells store the result of the last top-level expression to builtins._
.
The special identifier
_
is used in the interactive interpreter to store the result of the last evaluation; it is stored in thebuiltins
module. When not in interactive mode,_
has no special meaning and is not defined. [source]
Due to the way names are looked up, unless shadowed by a global or local _
definition the bare _
refers to builtins._
.
>>> 42
42
>>> f'the last answer is {_}'
'the last answer is 42'
>>> _
'the last answer is 42'
>>> _ = 4 # shadow ``builtins._`` with global ``_``
>>> 23
23
>>> _
4
Note: Some shells such as ipython
do not assign to builtins._
but special-case _
.
In the context internationalization and localization, _
is used as an alias for the primary translation function.
Return the localized translation of message, based on the current global domain, language, and locale directory. This function is usually aliased as _() in the local namespace (see examples below).
Here's a somewhat cleaner way of implementing this. This makes the following changes:
.src
attributes instead of DOM elements to make it work properly.Code:
function imageCache(base, firstNum, lastNum) {
this.cache = [];
var img;
for (var i = firstNum; i <= lastnum; i++) {
img = new Image();
img.src = base + i + ".jpg";
this.cache.push(img);
}
}
imageCache.prototype.nextImage(id) {
var element = document.getElementById(id);
var targetSrc = element.src;
var cache = this.cache;
for (var i = 0; i < cache.length; i++) {
if (cache[i].src) === targetSrc) {
i++;
if (i >= cache.length) {
i = 0;
}
element.src = cache[i].src;
return;
}
}
}
// sample usage
var myCache = new imageCache('images/img/Splash_image', 1, 6);
myCache.nextImage("foo");
Some advantages of this more object oriented and DRYed approach:
P.S. If you don't know what DRY stands for, it's "Don't Repeat Yourself" and basically means that you should never have many copies of similar looking code. Anytime you have that, it should be reduced somehow to a loop or function or something that removes the need for lots of similarly looking copies of code. The end result will be smaller, usually easier to maintain and often more reusable.
The only way to get the iOS dictation is to sign up yourself through Nuance: http://dragonmobile.nuancemobiledeveloper.com/ - it's expensive, because it's the best. Presumably, Apple's contract prevents them from exposing an API.
The built in iOS accessibility features allow immobilized users to access dictation (and other keyboard buttons) through tools like VoiceOver and Assistive Touch. It may not be worth reinventing this if your users might be familiar with these tools.
What do you mean, the error only shows up when you assign? For example on GCC, with no assignment in sight:
int main() {
struct blah *b = 0;
*b; // this is line 6
}
incompletetype.c:6: error: dereferencing pointer to incomplete type
.
The error is at line 6, that's where I used an incomplete type as if it were a complete type. I was fine up until then.
The mistake is that you should have included whatever header defines the type. But the compiler can't possibly guess what line that should have been included at: any line outside of a function would be fine, pretty much. Neither is it going to go trawling through every text file on your system, looking for a header that defines it, and suggest you should include that.
Alternatively (good point, potatoswatter), the error is at the line where b
was defined, when you meant to specify some type which actually exists, but actually specified blah
. Finding the definition of the variable b
shouldn't be too difficult in most cases. IDEs can usually do it for you, compiler warnings maybe can't be bothered. It's some pretty heinous code, though, if you can't find the definitions of the things you're using.
fd.append("image", dataurl);
This will not work. On PHP side you can not save file with this.
Use this code instead:
var blobBin = atob(dataurl.split(',')[1]);
var array = [];
for(var i = 0; i < blobBin.length; i++) {
array.push(blobBin.charCodeAt(i));
}
var file = new Blob([new Uint8Array(array)], {type: 'image/png', name: "avatar.png"});
fd.append("image", file); // blob file
In your layout you'll need something to display the text. A TextView
is the obvious choice. So you'll have something like this:
<TextView
android:id="@+id/text_view"
android:layout_width="fill_parent"
android:layout_height="fill_parent"/>
And your code will look like this:
//Find the directory for the SD Card using the API
//*Don't* hardcode "/sdcard"
File sdcard = Environment.getExternalStorageDirectory();
//Get the text file
File file = new File(sdcard,"file.txt");
//Read text from file
StringBuilder text = new StringBuilder();
try {
BufferedReader br = new BufferedReader(new FileReader(file));
String line;
while ((line = br.readLine()) != null) {
text.append(line);
text.append('\n');
}
br.close();
}
catch (IOException e) {
//You'll need to add proper error handling here
}
//Find the view by its id
TextView tv = (TextView)findViewById(R.id.text_view);
//Set the text
tv.setText(text);
This could go in the onCreate()
method of your Activity
, or somewhere else depending on just what it is you want to do.
Whenever you use NULL you are really dealing with a Three-Valued logic.
Your first query returns results as the WHERE clause evaluates to:
3 = 1 or 3 = 2 or 3 = 3 or 3 = null
which is:
FALSE or FALSE or TRUE or UNKNOWN
which evaluates to
TRUE
The second one:
3 <> 1 and 3 <> 2 and 3 <> null
which evaluates to:
TRUE and TRUE and UNKNOWN
which evaluates to:
UNKNOWN
The UNKNOWN is not the same as FALSE you can easily test it by calling:
select 'true' where 3 <> null
select 'true' where not (3 <> null)
Both queries will give you no results
If the UNKNOWN was the same as FALSE then assuming that the first query would give you FALSE the second would have to evaluate to TRUE as it would have been the same as NOT(FALSE).
That is not the case.
There is a very good article on this subject on SqlServerCentral.
The whole issue of NULLs and Three-Valued Logic can be a bit confusing at first but it is essential to understand in order to write correct queries in TSQL
Another article I would recommend is SQL Aggregate Functions and NULL.
For this label:
<asp:label id="myLabel" runat="server" />
In the code behind use (C#):
myLabel.Text = "my text";
Update (following updated question):
You do not need to use FindControl
- that whole line is superfluous:
Label myLabel = this.FindControl("myLabel") as Label;
myLabel.Text = "my text";
Should be just:
myLabel.Text = "my text";
The Visual Studio designer should create a file with all the server side controls already added properly to the class (in a RankPage.aspx.designer.cs
file, by default).
You are talking about a RankPage.cs
file - the way Visual Studio would have named it is RankPage.aspx.cs
. How are you linking these files together?
Visual Studio Community is same (almost) as professional edition. What differs is that VS community do not have TFS features, and the licensing is different. As stated by @Stefan.
The different versions on VS are compared here - https://www.visualstudio.com/en-us/products/compare-visual-studio-2015-products-vs
If you're using SQL Server, after your query you can select the @@RowCount function (or if your result set might have more than 2 billion rows use the RowCount_Big() function). This will return the number of rows selected by the previous statement or number of rows affected by an insert/update/delete statement.
SELECT my_table.my_col
FROM my_table
WHERE my_table.foo = 'bar'
SELECT @@Rowcount
Or if you want to row count included in the result sent similar to Approach #2, you can use the the OVER clause.
SELECT my_table.my_col,
count(*) OVER(PARTITION BY my_table.foo) AS 'Count'
FROM my_table
WHERE my_table.foo = 'bar'
Using the OVER clause will have much better performance than using a subquery to get the row count. Using the @@RowCount will have the best performance because the there won't be any query cost for the select @@RowCount statement
Update in response to comment: The example I gave would give the # of rows in partition - defined in this case by "PARTITION BY my_table.foo". The value of the column in each row is the # of rows with the same value of my_table.foo. Since your example query had the clause "WHERE my_table.foo = 'bar'", all rows in the resultset will have the same value of my_table.foo and therefore the value in the column will be the same for all rows and equal (in this case) this the # of rows in the query.
Here is a better/simpler example of how to include a column in each row that is the total # of rows in the resultset. Simply remove the optional Partition By clause.
SELECT my_table.my_col, count(*) OVER() AS 'Count'
FROM my_table
WHERE my_table.foo = 'bar'
For an alternative cryptography library, have a look at Bouncy Castle. It has AES and a lot of added functionality. It's a liberal open source library. You will have to use the lightweight, proprietary Bouncy Castle API for this to work though.
Why don't you start using OAuth with JSON WebTokens
http://projects.spring.io/spring-security-oauth/
OAuth2 is an standardized authorization protocol/framework. As per Official OAuth2 Specification:
You can find more info here
Base64 is a way to represent bytes in a textual form (as a string). So there is no such thing as a Base64 encoded byte[]. You'd have a base64 encoded string, which you could decode back to a byte[]
.
However, if you want to end up with a byte array, you could take the base64 encoded string and convert it to a byte array, like:
string base64String = Convert.ToBase64String(bytes);
byte[] stringBytes = Encoding.ASCII.GetBytes(base64String);
This, however, makes no sense because the best way to represent a byte[] as a byte[], is the byte[] itself :)
The option I use is as follows:
columns.Bound(p => p.OrderDate).Format("{0:d}").ClientTemplate("#=formatDate(OrderDate)#");
function formatDate(OrderDate) {
var formatedOrderDate = kendo.format("{0:d}", OrderDate);
return formatedOrderDate;
}
To elaborate on what @Raynos said, the function you have defined is an asynchronous callback. It doesn't execute right away, rather it executes when the file loading has completed. When you call readFile, control is returned immediately and the next line of code is executed. So when you call console.log, your callback has not yet been invoked, and this content has not yet been set. Welcome to asynchronous programming.
Example approaches
const fs = require('fs');
// First I want to read the file
fs.readFile('./Index.html', function read(err, data) {
if (err) {
throw err;
}
const content = data;
// Invoke the next step here however you like
console.log(content); // Put all of the code here (not the best solution)
processFile(content); // Or put the next step in a function and invoke it
});
function processFile(content) {
console.log(content);
}
Or better yet, as Raynos example shows, wrap your call in a function and pass in your own callbacks. (Apparently this is better practice) I think getting into the habit of wrapping your async calls in function that takes a callback will save you a lot of trouble and messy code.
function doSomething (callback) {
// any async callback invokes callback with response
}
doSomething (function doSomethingAfter(err, result) {
// process the async result
});
Transparency is controlled by the alpha channel (AA
in #AARRGGBB
). Maximal value (255 dec, FF hex) means fully opaque. Minimum value (0 dec, 00 hex) means fully transparent. Values in between are semi-transparent, i.e. the color is mixed with the background color.
To get a fully transparent color set the alpha to zero. RR
, GG
and BB
are irrelevant in this case because no color will be visible. This means #00FFFFFF
("transparent White") is the same color as #00F0F8FF
("transparent AliceBlue").
To keep it simple one chooses black (#00000000
) or white (#00FFFFFF
) if the color does not matter.
In the table you linked to you'll find Transparent
defined as #00FFFFFF
.
Based on the comment we are removing one property from style attribute.
Here this was not affect, but when more property are used within the style it helpful.
$('#msform').css('display', '')
After this we use
$("#msform").show();
If you just want to get a count of rows (not the data) ie. using COUNT(*) in a prepared statement then all you need to do is retrieve the result and read the value:
$sql = "SELECT count(*) FROM `table` WHERE foo = bar";
$statement = $con->prepare($sql);
$statement->execute();
$count = $statement->fetch(PDO::FETCH_NUM); // Return array indexed by column number
return reset($count); // Resets array cursor and returns first value (the count)
Actually retrieving all the rows (data) to perform a simple count is a waste of resources. If the result set is large your server may choke on it.
Although @Remus Rusanu's is already an excelent answer, in case one is looking forward a better insight on SQL Server's Deadlock causes and trace strategies, I would suggest you to read Brad McGehee's How to Track Down Deadlocks Using SQL Server 2005 Profiler
Here is a much simpler way.
tables="$(echo '\dt' | psql -U "${PGUSER}" | tail -n +4 | head -n-2 | tr -d ' ' | cut -d '|' -f2)"
for table in $tables; do
printf "%s: %s\n" "$table" "$(echo "SELECT COUNT(*) FROM $table;" | psql -U "${PGUSER}" | tail -n +3 | head -n-2 | tr -d ' ')"
done
output should look like this
auth_group: 0
auth_group_permissions: 0
auth_permission: 36
auth_user: 2
auth_user_groups: 0
auth_user_user_permissions: 0
authtoken_token: 2
django_admin_log: 0
django_content_type: 9
django_migrations: 22
django_session: 0
mydata_table1: 9011
mydata_table2: 3499
you can update the psql -U "${PGUSER}"
portion as needed to access your database
note that the head -n-2
syntax may not work in macOS, you could probably just use a different implementation there
Tested on psql (PostgreSQL) 11.2 under CentOS 7
if you want it sorted by table, then just wrap it with sort
for table in $tables; do
printf "%s: %s\n" "$table" "$(echo "SELECT COUNT(*) FROM $table;" | psql -U "${PGUSER}" | tail -n +3 | head -n-2 | tr -d ' ')"
done | sort -k 2,2nr
output;
mydata_table1: 9011
mydata_table2: 3499
auth_permission: 36
django_migrations: 22
django_content_type: 9
authtoken_token: 2
auth_user: 2
auth_group: 0
auth_group_permissions: 0
auth_user_groups: 0
auth_user_user_permissions: 0
django_admin_log: 0
django_session: 0
Maybe specifying a width would work. When you position:absolute
an element, it's width will shrink to the contents I believe.
There is exactly one reason why the following is preferred:
with open('filename.txt') as fp:
for line in fp:
print line
We are all spoiled by CPython's relatively deterministic reference-counting scheme for garbage collection. Other, hypothetical implementations of Python will not necessarily close the file "quickly enough" without the with
block if they use some other scheme to reclaim memory.
In such an implementation, you might get a "too many files open" error from the OS if your code opens files faster than the garbage collector calls finalizers on orphaned file handles. The usual workaround is to trigger the GC immediately, but this is a nasty hack and it has to be done by every function that could encounter the error, including those in libraries. What a nightmare.
Or you could just use the with
block.
(Stop reading now if are only interested in the objective aspects of the question.)
Why isn't that included in the iterator protocol for file objects?
This is a subjective question about API design, so I have a subjective answer in two parts.
On a gut level, this feels wrong, because it makes iterator protocol do two separate things—iterate over lines and close the file handle—and it's often a bad idea to make a simple-looking function do two actions. In this case, it feels especially bad because iterators relate in a quasi-functional, value-based way to the contents of a file, but managing file handles is a completely separate task. Squashing both, invisibly, into one action, is surprising to humans who read the code and makes it more difficult to reason about program behavior.
Other languages have essentially come to the same conclusion. Haskell briefly flirted with so-called "lazy IO" which allows you to iterate over a file and have it automatically closed when you get to the end of the stream, but it's almost universally discouraged to use lazy IO in Haskell these days, and Haskell users have mostly moved to more explicit resource management like Conduit which behaves more like the with
block in Python.
On a technical level, there are some things you may want to do with a file handle in Python which would not work as well if iteration closed the file handle. For example, suppose I need to iterate over the file twice:
with open('filename.txt') as fp:
for line in fp:
...
fp.seek(0)
for line in fp:
...
While this is a less common use case, consider the fact that I might have just added the three lines of code at the bottom to an existing code base which originally had the top three lines. If iteration closed the file, I wouldn't be able to do that. So keeping iteration and resource management separate makes it easier to compose chunks of code into a larger, working Python program.
Composability is one of the most important usability features of a language or API.
You can return FileResult with this methods:
1: Return FileStreamResult
[HttpGet("get-file-stream/{id}"]
public async Task<FileStreamResult> DownloadAsync(string id)
{
var fileName="myfileName.txt";
var mimeType="application/....";
var stream = await GetFileStreamById(id);
return new FileStreamResult(stream, mimeType)
{
FileDownloadName = fileName
};
}
2: Return FileContentResult
[HttpGet("get-file-content/{id}"]
public async Task<FileContentResult> DownloadAsync(string id)
{
var fileName="myfileName.txt";
var mimeType="application/....";
var fileBytes = await GetFileBytesById(id);
return new FileContentResult(fileBytes, mimeType)
{
FileDownloadName = fileName
};
}
I think you are wrapping your exception in another exception (which isn't in your code above). If you try out this code:
public static void main(String[] args) {
try {
throw new RuntimeException("Cannot move file");
} catch (Exception ex) {
JOptionPane.showMessageDialog(null, "Error: " + ex.getMessage());
}
}
...you will see a popup that says exactly what you want.
However, to solve your problem (the wrapped exception) you need get to the "root" exception with the "correct" message. To do this you need to create a own recursive method getRootCause
:
public static void main(String[] args) {
try {
throw new Exception(new RuntimeException("Cannot move file"));
} catch (Exception ex) {
JOptionPane.showMessageDialog(null,
"Error: " + getRootCause(ex).getMessage());
}
}
public static Throwable getRootCause(Throwable throwable) {
if (throwable.getCause() != null)
return getRootCause(throwable.getCause());
return throwable;
}
Note: Unwrapping exceptions like this however, sort of breaks the abstractions. I encourage you to find out why the exception is wrapped and ask yourself if it makes sense.
The appropriate way for doing this:
@app.route('/')
def index():
if form.validate_on_submit():
if 'download' in request.form:
pass # do something
elif 'watch' in request.form:
pass # do something else
Put watch
and download
buttons into your template:
<input type="submit" name="download" value="Download">
<input type="submit" name="watch" value="Watch">
CSS has many pseudo selector like, :active, :hover, :focus, so you can use.
Html
<div class="col-sm-12" id="my_styles">
<button type="submit" class="btn btn-warning" id="1">Button1</button>
<button type="submit" class="btn btn-warning" id="2">Button2</button>
</div>
css
.btn{
background: #ccc;
} .btn:focus{
background: red;
}
enum
type in Java 5 and onwards for the purpose you have described. It is type safe.If you are talking about the difference between instance variable and class variable, instance variable exist per object created. While class variable has only one copy per class loader regardless of the number of objects created.
Java 5 and up enum
type
public enum Color{
RED("Red"), GREEN("Green");
private Color(String color){
this.color = color;
}
private String color;
public String getColor(){
return this.color;
}
public String toString(){
return this.color;
}
}
If you wish to change the value of the enum you have created, provide a mutator method.
public enum Color{
RED("Red"), GREEN("Green");
private Color(String color){
this.color = color;
}
private String color;
public String getColor(){
return this.color;
}
public void setColor(String color){
this.color = color;
}
public String toString(){
return this.color;
}
}
Example of accessing:
public static void main(String args[]){
System.out.println(Color.RED.getColor());
// or
System.out.println(Color.GREEN);
}
To reference an element by id, you need to use the #
qualifier.
Try:
alert($("#link1").text());
To replace it, you could use:
$("#link1").text('New text');
The .html()
function would work in this case too.
@{
viewbag.title="index"
Layout = null;
}
I use []
.
Only tested in Chrome 44.
Example: http://codepen.io/hugovk/pen/OVqBoq
HTML:
<div>
<img src="http://lorempixel.com/1600/900/">
</div>
CSS:
<style type="text/css">
img {
position: absolute;
top: 50%;
left: 50%;
transform: translateX(-50%) translateY(-50%);
max-width: 100%;
max-height: 100%;
}
</style>
The existing answers are outdated. This is now doable from the menu:
Window -> Restore Default Layout (shift+f12)
Make sure nothing is currently running, as the Run/Debug window layout will not be reset otherwise.
How about using a static class with constants?
static class GroupTypes
{
public const string TheGroup = "OEM";
public const string TheOtherGroup = "CMB";
}
void DoSomething(string groupType)
{
if(groupType == GroupTypes.TheGroup)
{
// Be nice
}
else if (groupType == GroupTypes.TheOtherGroup)
{
// Continue to be nice
}
else
{
// unexpected, throw exception?
}
}
Just use:
param.AddWithValue("@Date_Of_Birth",DOB);
That will take care of all your problems.
You can use Apache Subversion. It is owner of subversion . You can download from here . After install it, you have to restart pc to use svn from command line.
As of the 0.17.0 release, the sort
method was deprecated in favor of sort_values
. sort
was completely removed in the 0.20.0 release. The arguments (and results) remain the same:
df.sort_values(['a', 'b'], ascending=[True, False])
You can use the ascending argument of sort
:
df.sort(['a', 'b'], ascending=[True, False])
For example:
In [11]: df1 = pd.DataFrame(np.random.randint(1, 5, (10,2)), columns=['a','b'])
In [12]: df1.sort(['a', 'b'], ascending=[True, False])
Out[12]:
a b
2 1 4
7 1 3
1 1 2
3 1 2
4 3 2
6 4 4
0 4 3
9 4 3
5 4 1
8 4 1
As commented by @renadeen
Sort isn't in place by default! So you should assign result of the sort method to a variable or add inplace=True to method call.
that is, if you want to reuse df1 as a sorted DataFrame:
df1 = df1.sort(['a', 'b'], ascending=[True, False])
or
df1.sort(['a', 'b'], ascending=[True, False], inplace=True)
Since this issue happened because calling model another time. Work around to this issue by wrapping your model code in try catch block. typescript code is like this -
Import {Schema, model} from 'mongoose';
export function user(){
try{
return model('user', new Schema ({
FirstName: String,
Last name: String
}));
}
catch{
return model('user');
}
}
Similarly you can write code in js too.
Adding processData: false
to the $.ajax
options will fix this issue.
Passed parameter like below,
Param([parameter(Mandatory=$true,
HelpMessage="Enter name and key values")]
$Name,
$Key)
.\script_name.ps1 -Name name -Key key
In addition to testing using the "is" operator, you can decorate your methods to make sure that variables passed to it implement a particular interface, like so:
public static void BubbleSort<T>(ref IList<T> unsorted_list) where T : IComparable
{
//Some bubbly sorting
}
I'm not sure which version of .Net this was implemented in so it may not work in your version.
For substracting in moment.js:
moment().subtract(1, 'months').format('MMM YYYY');
Documentation:
http://momentjs.com/docs/#/manipulating/subtract/
Before version 2.8.0, the moment#subtract(String, Number) syntax was also supported. It has been deprecated in favor of moment#subtract(Number, String).
moment().subtract('seconds', 1); // Deprecated in 2.8.0
moment().subtract(1, 'seconds');
As of 2.12.0 when decimal values are passed for days and months, they are rounded to the nearest integer. Weeks, quarters, and years are converted to days or months, and then rounded to the nearest integer.
moment().subtract(1.5, 'months') == moment().subtract(2, 'months')
moment().subtract(.7, 'years') == moment().subtract(8, 'months') //.7*12 = 8.4, rounded to 8
Maven plugin uses a settings file where the configuration can be set. Its path is available in Eclipse at Window|Preferences|Maven|User Settings
. If the file doesn't exist, create it and put on something like this:
<settings xmlns="http://maven.apache.org/SETTINGS/1.0.0"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://maven.apache.org/SETTINGS/1.0.0
http://maven.apache.org/xsd/settings-1.0.0.xsd">
<localRepository/>
<interactiveMode/>
<usePluginRegistry/>
<offline/>
<pluginGroups/>
<servers/>
<mirrors/>
<proxies>
<proxy>
<id>myproxy</id>
<active>true</active>
<protocol>http</protocol>
<host>192.168.1.100</host>
<port>6666</port>
<username></username>
<password></password>
<nonProxyHosts>localhost|127.0.0.1</nonProxyHosts>
</proxy>
</proxies>
<profiles/>
<activeProfiles/>
</settings>
After editing the file, it's just a matter of clicking on Update Settings
button and it's done. I've just done it and it worked :)
I resolved this by just running a simple:
git pull
Nothing more. Now it's showing:
# On branch master
nothing to commit, working directory clean
Although you asked about a state of class-based React component, the same problem exists with useState hook. Even worse: useState hook does not accept partial updates. So this question became very relevant when useState hook was introduced.
I have decided to post the following answer to make sure the question covers more modern scenarios where the useState hook is used:
If you have got:
const [state, setState] = useState({ someProperty: { flag: true, otherNestedProp: 1 }, otherProp: 2 })
you can set the nested property by cloning the current and patching the required segments of the data, for example:
setState(current => { ...current, someProperty: { ...current.someProperty, flag: false } });
Or you can use Immer library to simplify the cloning and patching of the object.
Or you can use Hookstate library (disclaimer: I am an author) to simply the management of complex (local and global) state data entirely and improve the performance (read: not to worry about rendering optimization):
import { useStateLink } from '@hookstate/core'
const state = useStateLink({ someProperty: { flag: true, otherNestedProp: 1 }, otherProp: 2 })
get the field to render:
state.nested.someProperty.nested.flag.get()
// or
state.get().someProperty.flag
set the nested field:
state.nested.someProperty.nested.flag.set(false)
Here is the Hookstate example, where the state is deeply / recursively nested in tree-like data structure.
i know this is an old post, but wanted to share how i solved the same problem.
My image was inheriting a float:left from a parent class. By setting float:none I was able to make margin:0 auto and display: block work properly. Hope it may help someone in the future.
Yes :). Try this:
DECLARE @text AS NVARCHAR(10)
SET @text = '100'
SELECT CASE WHEN ISNUMERIC(@text) = 1 THEN CAST(@text AS INT) ELSE NULL END
-- returns 100
SET @text = 'XXX'
SELECT CASE WHEN ISNUMERIC(@text) = 1 THEN CAST(@text AS INT) ELSE NULL END
-- returns NULL
ISNUMERIC()
has a few issues pointed by Fedor Hajdu.
It returns true for strings like $
(is currency), ,
or .
(both are separators), +
and -
.
Following Jaro's advice, I was able to get this working under Windows XP and IIS Express (installed via Web Matrix) with a small modification and was not limited to only localhost. It's just a matter of setting the bindings correctly.
%USERPROFILE%\My Documents\IISExpress\config\applicationhost.config
(Windows XP. Vista and 7 paths will be similar) and edit the site definition in the <sites>
config block to be along the lines of the following:<site name="DevExample" id="997005936">
<application path="/" applicationPool="Clr2IntegratedAppPool">
<virtualDirectory
path="/"
physicalPath="C:\path\to\application\root" />
</application>
<bindings>
<binding
protocol="http"
bindingInformation="*:80:dev.example.com" />
</bindings>
<applicationDefaults applicationPool="Clr2IntegratedAppPool" />
</site>
If running MVC, then keep the applicationPool set to one of the "Integrated" options.
appearance property doesn't work in all browser. You can do like the following-
input[type="radio"]{_x000D_
display: none;_x000D_
}_x000D_
label:before{_x000D_
content:url(http://strawberrycambodia.com/book/admin/templates/default/images/icons/16x16/checkbox.gif);_x000D_
}_x000D_
input[type="radio"]:checked+label:before{_x000D_
content:url(http://www.treatment-abroad.ru/img/admin/icons/16x16/checkbox.gif);_x000D_
}
_x000D_
_x000D_
<input type="radio" name="gender" id="test1" value="male">_x000D_
<label for="test1"> check 1</label>_x000D_
<input type="radio" name="gender" value="female" id="test2">_x000D_
<label for="test2"> check 2</label>_x000D_
<input type="radio" name="gender" value="other" id="test3">_x000D_
<label for="test3"> check 3</label>
_x000D_
It works IE 8+ and other browsers
Passsing bitmap as parceable in bundle between activity is not a good idea because of size limitation of Parceable(1mb). You can store the bitmap in a file in internal storage and retrieve the stored bitmap in several activities. Here's some sample code.
To store bitmap in a file myImage in internal storage:
public String createImageFromBitmap(Bitmap bitmap) {
String fileName = "myImage";//no .png or .jpg needed
try {
ByteArrayOutputStream bytes = new ByteArrayOutputStream();
bitmap.compress(Bitmap.CompressFormat.JPEG, 100, bytes);
FileOutputStream fo = openFileOutput(fileName, Context.MODE_PRIVATE);
fo.write(bytes.toByteArray());
// remember close file output
fo.close();
} catch (Exception e) {
e.printStackTrace();
fileName = null;
}
return fileName;
}
Then in the next activity you can decode this file myImage to a bitmap using following code:
//here context can be anything like getActivity() for fragment, this or MainActivity.this
Bitmap bitmap = BitmapFactory.decodeStream(context.openFileInput("myImage"));
Note A lot of checking for null and scaling bitmap's is ommited.
JAR File Manifest Attributes for Security
The JAR file manifest contains information about the contents of the JAR file, including security and configuration information.
Add the attributes to the manifest before the JAR file is signed.
See Modifying a Manifest File in the Java Tutorial for information on adding attributes to the JAR manifest file.
Permissions Attribute
The Permissions attribute is used to verify that the permissions level requested by the RIA when it runs matches the permissions level that was set when the JAR file was created.
Use this attribute to help prevent someone from re-deploying an application that is signed with your certificate and running it at a different privilege level. Set this attribute to one of the following values:
sandbox - runs in the security sandbox and does not require additional permissions.
all-permissions - requires access to the user's system resources.
Changes to Security Slider:
The following changes to Security Slider were included in this release(7u51):
For more information, see Java Control Panel documentation.
sample MANIFEST.MF
Manifest-Version: 1.0
Ant-Version: Apache Ant 1.8.3
Created-By: 1.7.0_51-b13 (Oracle Corporation)
Trusted-Only: true
Class-Path: lib/plugin.jar
Permissions: sandbox
Codebase: http://myweb.de http://www.myweb.de
Application-Name: summary-applet
Tested with: log4j-ap 2.13.2, log4j-core 2.13.2.
<build> <resources> <resource> <filtering>false</filtering> <directory>src/main/resources</directory> <includes> <include>**/*.xml</include> </includes> </resource> </resources> </build>
For some reason, the other jQuery
solutions provided here worked when running the script from console, however, it did not work for me when triggered from Chrome Bookmarklets.
Luckily, this Vanilla JS solution (the triggerChangeEvent
function) did work:
/**_x000D_
* Trigger a `change` event on given drop down option element._x000D_
* WARNING: only works if not already selected._x000D_
* @see https://stackoverflow.com/questions/902212/trigger-change-event-of-dropdown/58579258#58579258_x000D_
*/_x000D_
function triggerChangeEvent(option) {_x000D_
// set selected property_x000D_
option.selected = true;_x000D_
_x000D_
// raise event on parent <select> element_x000D_
if ("createEvent" in document) {_x000D_
var evt = document.createEvent("HTMLEvents");_x000D_
evt.initEvent("change", false, true);_x000D_
option.parentNode.dispatchEvent(evt);_x000D_
}_x000D_
else {_x000D_
option.parentNode.fireEvent("onchange");_x000D_
}_x000D_
}_x000D_
_x000D_
// ################################################_x000D_
// Setup our test case_x000D_
// ################################################_x000D_
_x000D_
(function setup() {_x000D_
const sel = document.querySelector('#fruit');_x000D_
sel.onchange = () => {_x000D_
document.querySelector('#result').textContent = sel.value;_x000D_
};_x000D_
})();_x000D_
_x000D_
function runTest() {_x000D_
const sel = document.querySelector('#selector').value;_x000D_
const optionEl = document.querySelector(sel);_x000D_
triggerChangeEvent(optionEl);_x000D_
}
_x000D_
<select id="fruit">_x000D_
<option value="">(select a fruit)</option>_x000D_
<option value="apple">Apple</option>_x000D_
<option value="banana">Banana</option>_x000D_
<option value="pineapple">Pineapple</option>_x000D_
</select>_x000D_
_x000D_
<p>_x000D_
You have selected: <b id="result"></b>_x000D_
</p>_x000D_
<p>_x000D_
<input id="selector" placeholder="selector" value="option[value='banana']">_x000D_
<button onclick="runTest()">Trigger select!</button>_x000D_
</p>
_x000D_
Based o my previous answer, here is a more elegant solution with a custom class:
First define this custom class:
import UIKit
import Foundation
class ActivityIndicatorView
{
var view: UIView!
var activityIndicator: UIActivityIndicatorView!
var title: String!
init(title: String, center: CGPoint, width: CGFloat = 200.0, height: CGFloat = 50.0)
{
self.title = title
let x = center.x - width/2.0
let y = center.y - height/2.0
self.view = UIView(frame: CGRect(x: x, y: y, width: width, height: height))
self.view.backgroundColor = UIColor(red: 255.0/255.0, green: 204.0/255.0, blue: 51.0/255.0, alpha: 0.5)
self.view.layer.cornerRadius = 10
self.activityIndicator = UIActivityIndicatorView(frame: CGRect(x: 0, y: 0, width: 50, height: 50))
self.activityIndicator.color = UIColor.blackColor()
self.activityIndicator.hidesWhenStopped = false
let titleLabel = UILabel(frame: CGRect(x: 60, y: 0, width: 200, height: 50))
titleLabel.text = title
titleLabel.textColor = UIColor.blackColor()
self.view.addSubview(self.activityIndicator)
self.view.addSubview(titleLabel)
}
func getViewActivityIndicator() -> UIView
{
return self.view
}
func startAnimating()
{
self.activityIndicator.startAnimating()
UIApplication.sharedApplication().beginIgnoringInteractionEvents()
}
func stopAnimating()
{
self.activityIndicator.stopAnimating()
UIApplication.sharedApplication().endIgnoringInteractionEvents()
self.view.removeFromSuperview()
}
//end
}
Now on your UIViewController
class:
var activityIndicatorView: ActivityIndicatorView!
override func viewDidLoad()
{
super.viewDidLoad()
self.activityIndicatorView = ActivityIndicatorView(title: "Processing...", center: self.view.center)
self.view.addSubview(self.activityIndicatorView.getViewActivityIndicator())
}
func doSomething()
{
self.activityIndicatorView.startAnimating()
UIApplication.sharedApplication().beginIgnoringInteractionEvents()
//do something here that will taking time
self.activityIndicatorView.stopAnimating()
}
I'm assuming you have a typo in your get statement and that it should be test1.get(key). If so, I'm not sure why it is not returning an ArrayList unless you are not putting in the correct type in the map in the first place.
This should work:
// populate the map
Map<String, List<String>> test1 = new LinkedHashMap<String, List<String>>();
test1.put("key1", new ArrayList<String>());
test1.put("key2", new ArrayList<String>());
// loop over the set using an entry set
for( Map.Entry<String,List<String>> entry : test1.entrySet()){
String key = entry.getKey();
List<String>value = entry.getValue();
// ...
}
or you can use
// second alternative - loop over the keys and get the value per key
for( String key : test1.keySet() ){
List<String>value = test1.get(key);
// ...
}
You should use the interface names when declaring your vars (and in your generic params) unless you have a very specific reason why you are defining using the implementation.
I thought I had a speed issue with PyCharm but in the end it turned out that the output console in PyCharm does not necessarily emulate the output of state-of-the-art terminal applications.
Here's my solution:
Click on drop down (arrow) symbol of your configuration -> click edit configuration
-> click emulate terminal in output console
-> click ok
-> Run the configuration.
i like this simple one:
function randstr(prefix)
{
return Math.random().toString(36).replace('0.',prefix || '');
}
since id should (though not must) start with a letter, i'd use it like this:
let div_id = randstr('youtube_div_');
some example values:
youtube_div_4vvbgs01076
youtube_div_1rofi36hslx
youtube_div_i62wtpptnpo
youtube_div_rl4fc05xahs
youtube_div_jb9bu85go7
youtube_div_etmk8u7a3r9
youtube_div_7jrzty7x4ft
youtube_div_f41t3hxrxy
youtube_div_8822fmp5sc8
youtube_div_bv3a3flv425
This is my gradle.properties, please note those HTTPS portion
systemProp.http.proxyHost=127.0.0.1
systemProp.http.proxyPort=8118
systemProp.https.proxyHost=127.0.0.1
systemProp.https.proxyPort=8118
The following code shows how you can use toolhelp and OpenProcess to get a handle to the process. Error handling removed for brevity.
HANDLE GetProcessByName(PCSTR name)
{
DWORD pid = 0;
// Create toolhelp snapshot.
HANDLE snapshot = CreateToolhelp32Snapshot(TH32CS_SNAPPROCESS, 0);
PROCESSENTRY32 process;
ZeroMemory(&process, sizeof(process));
process.dwSize = sizeof(process);
// Walkthrough all processes.
if (Process32First(snapshot, &process))
{
do
{
// Compare process.szExeFile based on format of name, i.e., trim file path
// trim .exe if necessary, etc.
if (string(process.szExeFile) == string(name))
{
pid = process.th32ProcessID;
break;
}
} while (Process32Next(snapshot, &process));
}
CloseHandle(snapshot);
if (pid != 0)
{
return OpenProcess(PROCESS_ALL_ACCESS, FALSE, pid);
}
// Not found
return NULL;
}
I had no idea what file was having the lock so what I did to get out of this issue was:
This worked for me.
DO NOT use this:
System.Environment.GetEnvironmentVariable("TEMP")
Environment variables can be overridden, so the TEMP
variable is not necessarily the directory.
The correct way is to use System.IO.Path.GetTempPath()
as in the accepted answer.
Go to ~/.subversion/auth/svn.simple/*
, and you will see a list of files that contains the information about your svn user account. Just delete all others that you don't need.
After that, when you do anything that regards to SVN operation, such as commit, rm, etc,. You will be prompt again to enter username or passwords.
If you have Unicode/nChar/nVarChar values you are concatenating, then SQL Server will implicitly convert your string to nVarChar(4000), and it is unfortunately too dumb to realize it will truncate your string or even give you a Warning that data has been truncated for that matter!
When concatenating long strings (or strings that you feel could be long) always pre-concatenate your string building with CAST('' as nVarChar(MAX)) like so:
SET @Query = CAST('' as nVarChar(MAX))--Force implicit conversion to nVarChar(MAX)
+ 'SELECT...'-- some of the query gets set here
+ '...'-- more query gets added on, etc.
What a pain and scary to think this is just how SQL Server works. :(
I know other workarounds on the web say to break up your code into multiple SET/SELECT assignments using multiple variables, but this is unnecessary given the solution above.
For those who hit an 8000 character max, it was probably because you had no Unicode so it was implicitly converted to VarChar(8000).
Explanation:
What's happening behind the scenes is that even though the variable you are assigning to uses (MAX), SQL Server will evaluate the right-hand side of the value you are assigning first and default to nVarChar(4000) or VarChar(8000) (depending on what you're concatenating). After it is done figuring out the value (and after truncating it for you) it then converts it to (MAX) when assigning it to your variable, but by then it is too late.
As far as i remember, the documentation advises against using the menu icons from android.R.drawable directly and recommends copying them to your drawables folder. The main reason is that those icons and names can be subject to change and may not be available in future releases.
Warning: Because these resources can change between platform versions, you should not reference these icons using the Android platform resource IDs (i.e. menu icons under android.R.drawable). If you want to use any icons or other internal drawable resources, you should store a local copy of those icons or drawables in your application resources, then reference the local copy from your application code. In that way, you can maintain control over the appearance of your icons, even if the system's copy changes.
from: http://developer.android.com/guide/practices/ui_guidelines/icon_design_menu.html
This is all a bit roundabout..
I've used the glyphs like this
</div>
<div class="span2">
<span class="glyphicons thumbs_up"><i class="green"></i></span>
</div>
<div class="span2">
<span class="glyphicons thumbs_down"><i class="red"></i></span>
</div>
and to affect the color, i included a bit of css at the head like this
<style>
i.green:before {
color: green;
}
i.red:before {
color: red;
}
</style>
Voila, green and red thumbs.
GZip is simply deflate plus a checksum and header/footer. Deflate is faster, though, as I learned the hard way.
All the above answers are correct. Just providing with your dataset to find perfect divisor:
#include <stdio.h>
int main()
{
int arr[7] = {3,5,7,8,9,17,19};
int j = 51;
int i = 0;
for (i=0 ; i < 7; i++) {
if (j % arr[i] == 0)
printf("%d is the perfect divisor of %d\n", arr[i], j);
}
return 0;
}
I did following steps to downgrade Gradle back to the original version:
Probably last step is enough as in my case the path to the new Gradle distribution was hardcoded there under 'Gradle home' option.
Try this code:
Collection<Employee> nonDuplicatedEmployees = employees.stream()
.<Map<Integer, Employee>> collect(HashMap::new,(m,e)->m.put(e.getId(), e), Map::putAll)
.values();
The error comes up when you are trying to assign a list of numpy array of different length to a data frame, and it can be reproduced as follows:
A data frame of four rows:
df = pd.DataFrame({'A': [1,2,3,4]})
Now trying to assign a list/array of two elements to it:
df['B'] = [3,4] # or df['B'] = np.array([3,4])
Both errors out:
ValueError: Length of values does not match length of index
Because the data frame has four rows but the list and array has only two elements.
Work around Solution (use with caution): convert the list/array to a pandas Series, and then when you do assignment, missing index in the Series will be filled with NaN:
df['B'] = pd.Series([3,4])
df
# A B
#0 1 3.0
#1 2 4.0
#2 3 NaN # NaN because the value at index 2 and 3 doesn't exist in the Series
#3 4 NaN
For your specific problem, if you don't care about the index or the correspondence of values between columns, you can reset index for each column after dropping the duplicates:
df.apply(lambda col: col.drop_duplicates().reset_index(drop=True))
# A B
#0 1 1.0
#1 2 5.0
#2 7 9.0
#3 8 NaN
If we have parameter like below in our POM XML
<version>${project.version}.${svn.version}</version>
<packaging>war</packaging>
I run maven command line as follows :
mvn clean install package -Dproject.version=10 -Dsvn.version=1