This exception message doesn't mean it requires a primary key to be defined in your database, it means it requires a primary key to be defined in your class.
Although you've attempted to do so:
private Guid _id; [Key] public Guid ID { get { return _id; } }
This has no effect, as Entity Framework ignores read-only properties. It has to: when it retrieves a Fruits
record from the database, it constructs a Fruit
object, and then calls the property setters for each mapped property. That's never going to work for read-only properties.
You need Entity Framework to be able to set the value of ID
. This means the property needs to have a setter.
Solution for me is: I clean both the solution and the project. And just rebuild the project. This error happens because I tried to delete the main file (only keep library files) in the previous build so at the current build the old stuff is still kept in the built directory. That's why unresolved things happened. "unresolved external symbol _main referenced in function "int __cdecl invoke_main(void)" (?invoke_main@@YAHXZ) "
I've been mislead by this error more than once. After spending hours googling, updating nuget packages, version checking, then after sitting with a completely updated solution I re-realize a perfectly valid, simpler reason for the error.
If in a threaded enthronement (UI Dispatcher.Invoke for example), System.IO.FileNotFoundException is thrown if the thread manager dll (file) fails to return. So if your main UI thread A, calls the system thread manager dll B, and B calls your thread code C, but C throws for some unrelated reason (such as null Reference as in my case), then C does not return, B does not return, and A only blames B with FileNotFoundException for being lost...
Before going down the dll version path... Check closer to home and verify your thread code is not throwing.
Just ran into the same problem. Installing the .NET framework on the target machine solved the problem.
Better yet, make sure all required dependencies are present in the machine where the code will be running.
My fix was to create Platform in configuration manager in visual studio, and set to x64
I had the same problem but it only occurred on the published website on Godaddy. It was no problem in my local host.
The error came from an aspx.cs (code behind file) where I tried to assign a value to a label. It appeared that from within the code behind, that the label Text appears to be null. So all I did with change all my Label Text properties in the ASPX file from Text="" to Text=" ".
The problem disappeared. I don’t know why the error happens from the hosted version but not on my localhost and don’t have time to figure out why. But it works fine now.
This answer is designed for anyone who is using WPF for .NET 4.5.
If you attempt to execute Task.Run()
on the GUI thread, then task.Wait()
will hang indefinitely, if you do not have the async
keyword in your function definition.
This extension method solves the problem by checking to see if we are on the GUI thread, and if so, running the task on the WPF dispatcher thread.
This class can act as the glue between the async/await world and the non-async/await world, in situations where it is unavoidable, such as MVVM properties or dependencies on other APIs that do not use async/await.
/// <summary>
/// Intent: runs an async/await task synchronously. Designed for use with WPF.
/// Normally, under WPF, if task.Wait() is executed on the GUI thread without async
/// in the function signature, it will hang with a threading deadlock, this class
/// solves that problem.
/// </summary>
public static class TaskHelper
{
public static void MyRunTaskSynchronously(this Task task)
{
if (MyIfWpfDispatcherThread)
{
var result = Dispatcher.CurrentDispatcher.InvokeAsync(async () => { await task; });
result.Wait();
if (result.Status != DispatcherOperationStatus.Completed)
{
throw new Exception("Error E99213. Task did not run to completion.");
}
}
else
{
task.Wait();
if (task.Status != TaskStatus.RanToCompletion)
{
throw new Exception("Error E33213. Task did not run to completion.");
}
}
}
public static T MyRunTaskSynchronously<T>(this Task<T> task)
{
if (MyIfWpfDispatcherThread)
{
T res = default(T);
var result = Dispatcher.CurrentDispatcher.InvokeAsync(async () => { res = await task; });
result.Wait();
if (result.Status != DispatcherOperationStatus.Completed)
{
throw new Exception("Error E89213. Task did not run to completion.");
}
return res;
}
else
{
T res = default(T);
var result = Task.Run(async () => res = await task);
result.Wait();
if (result.Status != TaskStatus.RanToCompletion)
{
throw new Exception("Error E12823. Task did not run to completion.");
}
return res;
}
}
/// <summary>
/// If the task is running on the WPF dispatcher thread.
/// </summary>
public static bool MyIfWpfDispatcherThread
{
get
{
return Application.Current.Dispatcher.CheckAccess();
}
}
}
1) Copy DLLs from "Externals\ffmpeg\bin" to your project's output directory (where executable stays); 2) Make sure your project is built for x86 target (runs in 32-bit mode).
I had the same error but in my case it was caused by mismatch in platform target settings. One library was set specifically to x86 while the main application was set to 'Any'...and then I moved my development to an x64 laptop.
I was using OLEDB and I switched to SQL Client and it solved my problem with this error.
I believe the most simple method to inject Javascript in a WebBrowser Control HTML Document from c# is to invoke the "execScript" method with the code to be injected as argument.
In this example the javascript code is injected and executed at global scope:
var jsCode="alert('hello world from injected code');";
WebBrowser.Document.InvokeScript("execScript", new Object[] { jsCode, "JavaScript" });
If you want to delay execution, inject functions and call them after:
var jsCode="function greet(msg){alert(msg);};";
WebBrowser.Document.InvokeScript("execScript", new Object[] { jsCode, "JavaScript" });
...............
WebBrowser.Document.InvokeScript("greet",new object[] {"hello world"});
This is valid for Windows Forms and WPF WebBrowser controls.
This solution is not cross browser because "execScript" is defined only in IE and Chrome. But the question is about Microsoft WebBrowser controls and IE is the only one supported.
For a valid cross browser method to inject javascript code, create a Function object with the new Keyword. This example creates an anonymous function with injected code and executes it (javascript implements closures and the function has access to global space without local variable pollution).
var jsCode="alert('hello world');";
(new Function(code))();
Of course, you can delay execution:
var jsCode="alert('hello world');";
var inserted=new Function(code);
.................
inserted();
Hope it helps
You sure the timer isn't outliving the 'dbiSchedule' somehow and firing after the 'dbiSchedule' has been been disposed of?
If that is the case you might be able to recreate it more consistently if the timer fires more quickly thus increasing the chances of you closing the Form just as the timer is firing.
With the mechanism explained in the answer of Jan I have instructed the m2e pluging to ignore the goal "generate-application-xml". This gets rid of the error and seems to work since m2e creates application.xml.
So basically the error forced us to decide which mechanism is in charge for generating application.xml when the Maven build runs inside Eclipse under the control of the m2e plugin. And we have decided that m2e is in charge.
<build>
<plugins>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-ear-plugin</artifactId>
<version>2.6</version>
<configuration>
<version>6</version>
<defaultLibBundleDir>lib</defaultLibBundleDir>
</configuration>
</plugin>
</plugins>
<pluginManagement>
<plugins>
**<!-- This plugin's configuration is used to store Eclipse m2e settings
only. It has no influence on the Maven build itself. -->
<plugin>
<groupId>org.eclipse.m2e</groupId>
<artifactId>lifecycle-mapping</artifactId>
<version>1.0.0</version>
<configuration>
<lifecycleMappingMetadata>
<pluginExecutions>
<pluginExecution>
<pluginExecutionFilter>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-ear-plugin</artifactId>
<versionRange>[2.1,)</versionRange>
<goals>
<goal>generate-application-xml</goal>
</goals>
</pluginExecutionFilter>
<action>
<ignore></ignore>
</action>
</pluginExecution>
</pluginExecutions>
</lifecycleMappingMetadata>
</configuration>
</plugin>**
</plugins>
</pluginManagement>
</build>
In my case I was miscalculating the Content-Length that I advertised in the header. I was serving Range-Requests for files and I mistakenly published the filesize in Content-Length.
I fixed the problem by setting Content-Length to the actual range that I was sending back to the browser.
So in case I am answering to a normal request I set the Content-Length to the filesize. In case I am answering to a range-request I set the Content-Length to the actualy length of the requested range.
If every input asks the same question, you should use a for
loop and an array of inputs:
Scanner dd = new Scanner(System.in);
int[] vars = new int[3];
for(int i = 0; i < vars.length; i++) {
System.out.println("Enter next var: ");
vars[i] = dd.nextInt();
}
Or as Chip suggested, you can parse the input from one line:
Scanner in = new Scanner(System.in);
int[] vars = new int[3];
System.out.println("Enter "+vars.length+" vars: ");
for(int i = 0; i < vars.length; i++)
vars[i] = in.nextInt();
You were on the right track, and what you did works. This is just a nicer and more flexible way of doing things.
You can use the following steps, its worked for me to drop table with constraint,solution already explained in the above comment, i just added screen shot for that -
UPDATE table SET nameofdatefield = ADDDATE(nameofdatefield, 2) WHERE ...
A unique approach I haven't seen anyone mention!
The only way I was able to get all the customisation I wanted was to use an after_validation
callback to allow me to manipulate the error message.
Allow the validation message to be created as normal, you don't need to try and change it in the validation helper.
create an after_validation
callback that will replace that validation message in the back-end before it gets to the view.
In the after_validation
method you can do anything you want with the validation message, just like a normal string! You can even use dynamic values and insert them into the validation message.
#this could be any validation
validates_presence_of :song_rep_xyz, :message => "whatever you want - who cares - we will replace you later"
after_validation :replace_validation_message
def replace_validation_message
custom_value = #any value you would like
errors.messages[:name_of_the_attribute] = ["^This is the replacement message where
you can now add your own dynamic values!!! #{custom_value}"]
end
The after_validation method will have far greater scope than the built in rails validation helper, so you will be able to access the object you are validating like you are trying to do with object.file_name. Which does not work in the validation helper where you are trying to call it.
Note: we use the ^
to get rid of the attribute name at the beginning of the validation as @Rystraum pointed out referencing this gem
This question has several answers but I want to add something more because when I used unset
or array_diff
I had several problems to play with the indexes of the new array when the specific element was removed (because the initial index are saved)
I get back to the example :
$array = array('apple', 'orange', 'strawberry', 'blueberry', 'kiwi');
$array_without_strawberries = array_diff($array, array('strawberry'));
or
$array = array('apple', 'orange', 'strawberry', 'blueberry', 'kiwi');
unset($array[array_search('strawberry', $array)]);
If you print the result you will obtain :
foreach ($array_without_strawberries as $data) {
print_r($data);
}
Result :
> apple
> orange
> blueberry
> kiwi
But the indexes will be saved and so you will access to your element like :
$array_without_strawberries[0] > apple
$array_without_strawberries[1] > orange
$array_without_strawberries[3] > blueberry
$array_without_strawberries[4] > kiwi
And so the final array are not re-indexed. So you need to add after the unset
or array_diff
:
$array_without_strawberries = array_values($array);
After that your array will have a normal index :
$array_without_strawberries[0] > apple
$array_without_strawberries[1] > orange
$array_without_strawberries[2] > blueberry
$array_without_strawberries[3] > kiwi
Related to this post : Re-Index Array
Hope it will help
Right, many alternatives are listed. The easiest and cleanest would be just using the enhanced for
statement as below. The Expression
is of some type that is iterable.
for ( FormalParameter : Expression ) Statement
For example, to iterate through, List<String> ids, we can simply so,
for (String str : ids) {
// Do something
}
I saw this problem today when trying to create a WCF service proxy, both using VS2010 and svcutil.
Everything I'm doing is with basicHttpBinding
(so no issue with wsHttpBinding
).
For the first time in my recollection MSDN actually provided me with the solution, at the following link How to: Publish Metadata for a Service Using a Configuration File. The line I needed to change was inside the behavior element inside the MEX service behavior element inside my service app.config file. I changed it from
<serviceMetadata httpGetEnabled="true"/>
to
<serviceMetadata httpGetEnabled="true" policyVersion="Policy15"/>
and like magic the error went away and I was able to create the service proxy. Note that there is a corresponding MSDN entry for using code instead of a config file: How to: Publish Metadata for a Service Using Code.
(Of course, Policy15 - how could I possibly have overlooked that???)
One more "gotcha": my service needs to expose 3 different endpoints, each supporting a different contract. For each proxy that I needed to build, I had to comment out the other 2 endpoints, otherwise svcutil would complain that it could not resolve the base URL address.
If you want to use jQuery you can use .replaceAll()
You have an array, convert it to an object, something like:
data: [{"id": 3636, "is_default": true, "name": "Unit", "quantity": 1, "stock": "100000.00", "unit_cost": "0"}, {"id": 4592, "is_default": false, "name": "Bundle", "quantity": 5, "stock": "100000.00", "unit_cost": "0"}]
I found the best way to do this is with ChronoUnit.
long minutes = ChronoUnit.MINUTES.between(fromDate, toDate);
long hours = ChronoUnit.HOURS.between(fromDate, toDate);
Additional documentation is here: https://docs.oracle.com/javase/tutorial/datetime/iso/period.html
Typically you could use mongoose validation but since you need an async result (db query for existing names) and validators don't support promises (from what I can tell), you will need to create your own function and pass a callback. Here is an example:
var mongoose = require('mongoose'),
Schema = mongoose.Schema,
ObjectId = Schema.ObjectId;
mongoose.connect('mongodb://localhost/testDB');
var UserSchema = new Schema({
name: {type:String}
});
var UserModel = mongoose.model('UserModel',UserSchema);
function updateUser(user,cb){
UserModel.find({name : user.name}, function (err, docs) {
if (docs.length){
cb('Name exists already',null);
}else{
user.save(function(err){
cb(err,user);
});
}
});
}
UserModel.findById(req.param('sid'),function(err,existingUser){
if (!err && existingUser){
existingUser.name = 'Kevin';
updateUser(existingUser,function(err2,user){
if (err2 || !user){
console.log('error updated user: ',err2);
}else{
console.log('user updated: ',user);
}
});
}
});
UPDATE: A better way
The pre hook seems to be a more natural place to stop the save:
UserSchema.pre('save', function (next) {
var self = this;
UserModel.find({name : self.name}, function (err, docs) {
if (!docs.length){
next();
}else{
console.log('user exists: ',self.name);
next(new Error("User exists!"));
}
});
}) ;
UPDATE 2: Async custom validators
It looks like mongoose supports async custom validators now so that would probably be the natural solution:
var userSchema = new Schema({
name: {
type: String,
validate: {
validator: function(v, cb) {
User.find({name: v}, function(err,docs){
cb(docs.length == 0);
});
},
message: 'User already exists!'
}
}
});
I had the same issue once, the empty POST array is caused due a redirection of the request (on your server side), fix the URL so it doesn't have to be redirected when it hits the server. For Example, if https is forced using the .htaccess file on your server side app, make sure your client request has the "https://" prefix. Usually when a redirect happens the POST array is lost. I Hope this helps!
extern tells the compiler that this data is defined somewhere and will be connected with the linker.
With the help of the responses here and talking to a few friends here is the practical example of a use of extern.
Example 1 - to show a pitfall:
File stdio.h:
int errno;
/* other stuff...*/
myCFile1.c:
#include <stdio.h>
Code...
myCFile2.c:
#include <stdio.h>
Code...
If myCFile1.o and myCFile2.o are linked, each of the c files have separate copies of errno. This is a problem as the same errno is supposed to be available in all linked files.
Example 2 - The fix.
File stdio.h:
extern int errno;
/* other stuff...*/
File stdio.c
int errno;
myCFile1.c:
#include <stdio.h>
Code...
myCFile2.c:
#include <stdio.h>
Code...
Now if both myCFile1.o and MyCFile2.o are linked by the linker they will both point to the same errno. Thus, solving the implementation with extern.
Could write a udf and take a value to tell it which day of the week should be 1 would look like this (drawing on answer from John to use MOD instead of CASE):
DROP FUNCTION IF EXISTS `reporting`.`udfDayOfWeek`;
DELIMITER |
CREATE FUNCTION `reporting`.`udfDayOfWeek` (
_date DATETIME,
_firstDay TINYINT
) RETURNS tinyint(4)
FUNCTION_BLOCK: BEGIN
DECLARE _dayOfWeek, _offset TINYINT;
SET _offset = 8 - _firstDay;
SET _dayOfWeek = (DAYOFWEEK(_date) + _offset) MOD 7;
IF _dayOfWeek = 0 THEN
SET _dayOfWeek = 7;
END IF;
RETURN _dayOfWeek;
END FUNCTION_BLOCK
To call this function to give you the current day of week value when your week starts on a Tuesday for instance, you'd call:
SELECT udfDayOfWeek(NOW(), 3);
Nice thing about having it as a udf is you could also call it on a result set field like this:
SELECT
udfDayOfWeek(p.SignupDate, 3) AS SignupDayOfWeek,
p.FirstName,
p.LastName
FROM Profile p;
Just create a new branch with git checkout -b ABC_1
; your uncommitted changes will be kept, and you then commit them to that branch.
This is ridiculous. There's no compelling reason to ban the for-loop, performance-wise or other.
See Jon Skeet's blog for a performance benchmark and other arguments.
The proper way to do it is probably to break down the method by putting the try-catch block in a separate method, and use a return statement:
public void someMethod() {
try {
...
if (condition)
return;
...
} catch (SomeException e) {
...
}
}
If the code involves lots of local variables, you may also consider using a break
from a labeled block, as suggested by Stephen C:
label: try {
...
if (condition)
break label;
...
} catch (SomeException e) {
...
}
Both are shorthands for longer expressions.
?:
is short for $a ? $a : $b
. This expression will evaluate to $a if $a evaluates to TRUE.
??
is short for isset($a) ? $a : $b
. This expression will evaluate to $a if $a is set and not null.
Their use cases overlaps when $a is undefined or null. When $a is undefined ??
will not produce an E_NOTICE, but the results are the same. When $a is null the result is the same.
Use enumerate()
like so:
def draw_menu(options, selected_index):
for counter, option in enumerate(options):
if counter == selected_index:
print " [*] %s" % option
else:
print " [ ] %s" % option
options = ['Option 0', 'Option 1', 'Option 2', 'Option 3']
draw_menu(options, 2)
Note: You can optionally put parenthesis around counter, option
, like (counter, option)
, if you want, but they're extraneous and not normally included.
You can specify become_method
to override the default method set in ansible.cfg
(if any), and which can be set to one of sudo, su, pbrun, pfexec, doas, dzdo, ksu
.
- name: I am confused
command: 'whoami'
become: true
become_method: su
become_user: some_user
register: myidentity
- name: my secret identity
debug:
msg: '{{ myidentity.stdout }}'
Should display
TASK [my-task : my secret identity] ************************************************************
ok: [my_ansible_server] => {
"msg": "some_user"
}
Perhaps you can try to sync up the dependencies by executing 'flutter pub get' in terminal.
Why don't you use a for loop instead of using foreach. In this scenario, there is no way you can get the index of the current iteration of the foreach loop.
The name of the file can be added to the string[] in this way,
private string[] ColeccionDeCortes(string Path)
{
DirectoryInfo X = new DirectoryInfo(Path);
FileInfo[] listaDeArchivos = X.GetFiles();
string[] Coleccion=new string[listaDeArchivos.Length];
for (int i = 0; i < listaDeArchivos.Length; i++)
{
Coleccion[i] = listaDeArchivos[i].Name;
}
return Coleccion;
}
The target
attribute is your best way of doing this.
<a href="http://www.starfall.com" target="_blank">
will open it in a new tab or window. As for which, it depends on the users settings.
<a href="http://www.starfall.com" target="_self">
is default. It makes the page open in the same tab (or iframe, if that's what you're dealing with).
The next two are only good if you're dealing with an iframe.
<a href="http://www.starfall.com" target="_parent">
will open the link in the iframe that the iframe that had the link was in.
<a href="http://www.starfall.com" target="_top">
will open the link in the tab, no matter how many iframes it has to go through.
function clearSelection() {
if(document.selection && document.selection.empty) {
document.selection.empty();
} else if(window.getSelection) {
var sel = window.getSelection();
sel.removeAllRanges();
}
}
You can also apply these styles to the span for all non-IE browsers and IE10:
span.no_selection {
user-select: none; /* standard syntax */
-webkit-user-select: none; /* webkit (safari, chrome) browsers */
-moz-user-select: none; /* mozilla browsers */
-khtml-user-select: none; /* webkit (konqueror) browsers */
-ms-user-select: none; /* IE10+ */
}
No, you cannot directly access the first value.
I suppose a hack for this would be to return an array of values instead of "item" and "err", and then just do
item, _ := Get(1)[0]
but I would not recommend this.
@HankCa solved the problem in my case as well. I decided to change my dangerous **/*.jar
ignores to self-explanatory ones like src/**/lib/*.jar
to avoid such problems in the future. Ignores starting with **/* are a bit too hazardous, at least to me. And it's always a good idea to get the idea behind a .gitignore row just by looking at it.
Now that's the thing about software development, there's no consistent knowledge about anything, everybody seems to have it their own way, but that's because it is a relatively young discipline anyway.
Here's my plain simple way,
trunk - The trunk directory contains the most current, approved, and merged body of work. Contrary to what many have confessed, my trunk is only for clean, neat, approved work, and not a development area, but rather a release area.
At some given point in time when the trunk seems all ready to release, then it is tagged and released.
branches - The branches directory contains experiments and ongoing work. Work under a branch stays there until is approved to be merged into the trunk. For me, this is the area where all the work is done.
For example: I can have an iteration-5 branch for a fifth round of development on the product, maybe a prototype-9 branch for a ninth round of experimenting, and so on.
tags - The tags directory contains snapshots of approved branches and trunk releases. Whenever a branch is approved to merge into the trunk, or a release is made of the trunk, a snapshot of the approved branch or trunk release is made under tags.
I suppose with tags I can jump back and forth through time to points interest quite easily.
Have a try with this:
setVolumeControlStream(AudioManager.STREAM_MUSIC);
They have wrapped most stuff need to solve your problem, one of the tests looks like this:
String filename = CSSURLEmbedderTest.class.getResource("folder.png").getPath().replace("%20", " ");
String code = "background: url(folder.png);";
StringWriter writer = new StringWriter();
embedder = new CSSURLEmbedder(new StringReader(code), true);
embedder.embedImages(writer, filename.substring(0, filename.lastIndexOf("/")+1));
String result = writer.toString();
assertEquals("background: url(" + folderDataURI + ");", result);
Try the Vici Project, Vici Parser. It includes a JSON parser / tokeniser. It works great, we use it together with the MVC framework.
More info at: http://viciproject.com/wiki/projects/parser/home
I forgot to say that it is open source so you can always take a look at the code if you like.
This jQuery worked for me:
$("#banner-contenedor").css('width');
This will get you the computed width
You need to check out the attr
method in the jQuery docs. You are misusing it. What you are doing within the if statements simply replaces all image tags src
with the string specified in the 2nd parameter.
A better way to approach replacing a series of images source would be to loop through each and check it's source.
Example:
$('img').each(function () {
var curSrc = $(this).attr('src');
if ( curSrc === 'http://example.com/smith.gif' ) {
$(this).attr('src', 'http://example.com/johnson.gif');
}
if ( curSrc === 'http://example.com/williams.gif' ) {
$(this).attr('src', 'http://example.com/brown.gif');
}
});
This location has, once again, changed, if using Swift, use this to find out where the folder is (this is copied from the AppDelegate.swift file that Apple creates for you so if it doesn't work on your machine, search in that file for the right syntax, this works on mine using Xcode 6.1 and iOS 8 simulator):
let urls = NSFileManager.defaultManager().URLsForDirectory(.DocumentDirectory, inDomains: .UserDomainMask)
println("Possible sqlite file: \(urls)")
Is there a single declaration that fixes this for Webkit, Gecko, and Blink? No. However, there is a cross-browser solution by specifying multiple width property values that correspond to each layout engine's convention.
.mydiv {
...
width: intrinsic; /* Safari/WebKit uses a non-standard name */
width: -moz-max-content; /* Firefox/Gecko */
width: -webkit-max-content; /* Chrome */
...
}
Adapted from: MDN
I'm not an expert, but I'd assume that enough smart people looked at Java's random number generator over the years. Hence, I'd also assume that random UUIDs are good. So you should really have the theoretical collision probability (which is about 1 : 3 × 10^38 for all possible UUIDs. Does anybody know how this changes for random UUIDs only? Is it 1/(16*4)
of the above?)
From my practical experience, I've never seen any collisions so far. I'll probably have grown an astonishingly long beard the day I get my first one ;)
You can't call something on the entire viewModel, but on an individual observable you can call myObservable.valueHasMutated()
to notify subscribers that they should re-evaluate. This is generally not necessary in KO, as you mentioned.
Very Simplest Method:
NSArray *paths = NSSearchPathForDirectoriesInDomains(NSDocumentDirectory,
NSUserDomainMask, YES);
NSString *documentsDirectory = [paths objectAtIndex:0];
NSFileManager *manager = [NSFileManager defaultManager];
NSArray *fileList = [manager contentsOfDirectoryAtPath:documentsDirectory
error:nil];
//--- Listing file by name sort
NSLog(@"\n File list %@",fileList);
//---- Sorting files by extension
NSArray *filePathsArray =
[[NSFileManager defaultManager] subpathsOfDirectoryAtPath:documentsDirectory
error:nil];
NSPredicate *predicate = [NSPredicate predicateWithFormat:@"SELF EndsWith '.png'"];
filePathsArray = [filePathsArray filteredArrayUsingPredicate:predicate];
NSLog(@"\n\n Sorted files by extension %@",filePathsArray);
As stated previously, to show if the point is in the circle we can use the following
if ((x-center_x)^2 + (y - center_y)^2 < radius^2) {
in.circle <- "True"
} else {
in.circle <- "False"
}
To represent it graphically we can use:
plot(x, y, asp = 1, xlim = c(-1, 1), ylim = c(-1, 1), col = ifelse((x-center_x)^2 + (y - center_y)^2 < radius^2,'green','red'))
draw.circle(0, 0, 1, nv = 1000, border = NULL, col = NA, lty = 1, lwd = 1)
There is a neat way of doing this.
If it's an Unit Test you can do this:
@RunWith(MockitoJUnitRunner.class)
public class MyUnitTest {
@Mock
private MyFirstMock myFirstMock;
@Mock
private MySecondMock mySecondMock;
@Spy
private MySpiedClass mySpiedClass = new MySpiedClass();
// It's gonna inject the 2 mocks and the spied object per reflection to this object
// The java doc of @InjectMocks explains it really well how and when it does the injection
@InjectMocks
private MyClassToTest myClassToTest;
@Test
public void testSomething() {
}
}
EDIT: If it's an Integration test you can do this(not intended to be used that way with Spring. Just showcase that you can initialize mocks with diferent Runners):
@RunWith(SpringJUnit4ClassRunner.class)
@ContextConfiguration("aplicationContext.xml")
public class MyIntegrationTest {
@Mock
private MyFirstMock myFirstMock;
@Mock
private MySecondMock mySecondMock;
@Spy
private MySpiedClass mySpiedClass = new MySpiedClass();
// It's gonna inject the 2 mocks and the spied object per reflection to this object
// The java doc of @InjectMocks explains it really well how and when it does the injection
@InjectMocks
private MyClassToTest myClassToTest;
@Before
public void setUp() throws Exception {
MockitoAnnotations.initMocks(this);
}
@Test
public void testSomething() {
}
}
multiple inserts are faster but it has thredshould. another thrik is disabling constrains checks temprorary make inserts much much faster. It dosn't matter your table has it or not. For example test disabling foreign keys and enjoy the speed:
SET FOREIGN_KEY_CHECKS=0;
offcourse you should turn it back on after inserts by:
SET FOREIGN_KEY_CHECKS=1;
this is common way to inserting huge data. the data integridity may break so you shoud care of that before disabling foreign key checks.
You are attempting to attach an event listener function before the element is loaded. Place fun()
inside an onload
event listener function. Call f1()
within this function, as the onclick
attribute will be ignored.
function f1() {
alert("f1 called");
//form validation that recalls the page showing with supplied inputs.
}
window.onload = function() {
document.getElementById("Save").onclick = function fun() {
alert("hello");
f1();
//validation code to see State field is mandatory.
}
}
This can be done using HTML5's placeHolder or using JavaScript. Checkout this post.
It would be a lot more simple just to do this;
name = input("What's your name? ")
age = int(input("How old are you? "))
print ("Hi,{0} you will be 21 in {1} years.".format(name, 21 - age))`
If you have a UTF-8 string, where every byte is correct ('Ö' -> [195, 0] , [150, 0]), you can use the following:
public static string Utf8ToUtf16(string utf8String)
{
/***************************************************************
* Every .NET string will store text with the UTF-16 encoding, *
* known as Encoding.Unicode. Other encodings may exist as *
* Byte-Array or incorrectly stored with the UTF-16 encoding. *
* *
* UTF-8 = 1 bytes per char *
* ["100" for the ansi 'd'] *
* ["206" and "186" for the russian '?'] *
* *
* UTF-16 = 2 bytes per char *
* ["100, 0" for the ansi 'd'] *
* ["186, 3" for the russian '?'] *
* *
* UTF-8 inside UTF-16 *
* ["100, 0" for the ansi 'd'] *
* ["206, 0" and "186, 0" for the russian '?'] *
* *
* First we need to get the UTF-8 Byte-Array and remove all *
* 0 byte (binary 0) while doing so. *
* *
* Binary 0 means end of string on UTF-8 encoding while on *
* UTF-16 one binary 0 does not end the string. Only if there *
* are 2 binary 0, than the UTF-16 encoding will end the *
* string. Because of .NET we don't have to handle this. *
* *
* After removing binary 0 and receiving the Byte-Array, we *
* can use the UTF-8 encoding to string method now to get a *
* UTF-16 string. *
* *
***************************************************************/
// Get UTF-8 bytes and remove binary 0 bytes (filler)
List<byte> utf8Bytes = new List<byte>(utf8String.Length);
foreach (byte utf8Byte in utf8String)
{
// Remove binary 0 bytes (filler)
if (utf8Byte > 0) {
utf8Bytes.Add(utf8Byte);
}
}
// Convert UTF-8 bytes to UTF-16 string
return Encoding.UTF8.GetString(utf8Bytes.ToArray());
}
In my case the DLL result is a UTF-8 string too, but unfortunately the UTF-8 string is interpreted with UTF-16 encoding ('Ö' -> [195, 0], [19, 32]). So the ANSI '–' which is 150 was converted to the UTF-16 '–' which is 8211. If you have this case too, you can use the following instead:
public static string Utf8ToUtf16(string utf8String)
{
// Get UTF-8 bytes by reading each byte with ANSI encoding
byte[] utf8Bytes = Encoding.Default.GetBytes(utf8String);
// Convert UTF-8 bytes to UTF-16 bytes
byte[] utf16Bytes = Encoding.Convert(Encoding.UTF8, Encoding.Unicode, utf8Bytes);
// Return UTF-16 bytes as UTF-16 string
return Encoding.Unicode.GetString(utf16Bytes);
}
Or the Native-Method:
[DllImport("kernel32.dll")]
private static extern Int32 MultiByteToWideChar(UInt32 CodePage, UInt32 dwFlags, [MarshalAs(UnmanagedType.LPStr)] String lpMultiByteStr, Int32 cbMultiByte, [Out, MarshalAs(UnmanagedType.LPWStr)] StringBuilder lpWideCharStr, Int32 cchWideChar);
public static string Utf8ToUtf16(string utf8String)
{
Int32 iNewDataLen = MultiByteToWideChar(Convert.ToUInt32(Encoding.UTF8.CodePage), 0, utf8String, -1, null, 0);
if (iNewDataLen > 1)
{
StringBuilder utf16String = new StringBuilder(iNewDataLen);
MultiByteToWideChar(Convert.ToUInt32(Encoding.UTF8.CodePage), 0, utf8String, -1, utf16String, utf16String.Capacity);
return utf16String.ToString();
}
else
{
return String.Empty;
}
}
If you need it the other way around, see Utf16ToUtf8. Hope I could be of help.
First you must create an empty figure with the following command.
figure('name','Title of the window here');
By doing this, the newly created figure becomes you active figure. Immediately after calling a plot()
command, it will print your plotting onto this figure. So your window will have a title.
This is the code you must use:
figure('name','Title of the window here');
hold on
x = [0; 0.2; 0.4; 0.6; 0.8; 1; 1.2; 1.4; 1.6; 1.8; 2; 2.2; 2.4; 2.6; 2.8; 3; 3.2; 3.4; 3.6; 3.8; 4; 4.2; 4.4; 4.6; 4.8; 5; 5.2; 5.4; 5.6; 5.8; 6; 6.2; 6.4; 6.6; 6.8; 7; 7.2; 7.4; 7.6; 7.8; 8; 8.2; 8.4; 8.6; 8.8; 9; 9.2; 9.4; 9.6; 9.8; 10; 10.2; 10.4; 10.6; 10.8; 11; 11.2; 11.4; 11.6; 11.8; 12; 12.2; 12.4; 12.6; 12.8; 13; 13.2; 13.4; 13.6; 13.8; 14; 14.2; 14.4; 14.6; 14.8; 15; 15.2; 15.4; 15.6; 15.8; 16; 16.2; 16.4; 16.6; 16.8; 17; 17.2; 17.4; 17.6; 17.8; 18; 18.2; 18.4; 18.6; 18.8];
y = [0; 0.198669; 0.389418; 0.564642; 0.717356; 0.841471; 0.932039; 0.98545; 0.999574; 0.973848; 0.909297; 0.808496; 0.675463; 0.515501; 0.334988; 0.14112; -0.0583741; -0.255541; -0.44252; -0.611858; -0.756802; -0.871576; -0.951602; -0.993691; -0.996165; -0.958924; -0.883455; -0.772764; -0.631267; -0.464602; -0.279415; -0.0830894; 0.116549; 0.311541; 0.494113; 0.656987; 0.793668; 0.898708; 0.96792; 0.998543; 0.989358; 0.940731; 0.854599; 0.734397; 0.584917; 0.412118; 0.22289; 0.0247754; -0.174327; -0.366479; -0.544021; -0.699875; -0.827826; -0.922775; -0.980936; -0.99999; -0.979178; -0.919329; -0.822829; -0.693525; -0.536573; -0.358229; -0.165604; 0.033623; 0.23151; 0.420167; 0.592074; 0.740376; 0.859162; 0.943696; 0.990607; 0.998027; 0.965658; 0.894791; 0.788252; 0.650288; 0.486399; 0.303118; 0.107754; -0.0919069; -0.287903; -0.472422; -0.638107; -0.778352; -0.887567; -0.961397; -0.9969; -0.992659; -0.948844; -0.867202; -0.750987; -0.604833; -0.434566; -0.246974; -0.0495356];
plot(x, y, '--b');
x = [0; 0.2; 0.4; 0.6; 0.8; 1; 1.2; 1.4; 1.6; 1.8; 2; 2.2; 2.4; 2.6; 2.8; 3; 3.2; 3.4; 3.6; 3.8; 4; 4.2; 4.4; 4.6; 4.8; 5; 5.2; 5.4; 5.6; 5.8; 6; 6.2; 6.4; 6.6; 6.8; 7; 7.2; 7.4; 7.6; 7.8; 8; 8.2; 8.4; 8.6; 8.8; 9; 9.2; 9.4; 9.6; 9.8; 10; 10.2; 10.4; 10.6; 10.8; 11; 11.2; 11.4; 11.6; 11.8; 12; 12.2; 12.4; 12.6; 12.8; 13; 13.2; 13.4; 13.6; 13.8; 14; 14.2; 14.4; 14.6; 14.8; 15; 15.2; 15.4; 15.6; 15.8; 16; 16.2; 16.4; 16.6; 16.8; 17; 17.2; 17.4; 17.6; 17.8; 18; 18.2; 18.4; 18.6; 18.8];
y = [-1; -0.980133; -0.921324; -0.825918; -0.697718; -0.541836; -0.364485; -0.172736; 0.0257666; 0.223109; 0.411423; 0.583203; 0.731599; 0.850695; 0.935744; 0.983355; 0.991629; 0.960238; 0.890432; 0.784994; 0.648128; 0.48529; 0.302972; 0.108443; -0.0905427; -0.286052; -0.470289; -0.635911; -0.776314; -0.885901; -0.960303; -0.996554; -0.993208; -0.950399; -0.869833; -0.754723; -0.609658; -0.44042; -0.253757; -0.057111; 0.141679; 0.334688; 0.514221; 0.673121; 0.805052; 0.904756; 0.968256; 0.993023; 0.978068; 0.923987; 0.832937; 0.708548; 0.555778; 0.380717; 0.190346; -0.00774649; -0.205663; -0.395514; -0.56973; -0.721365; -0.844375; -0.933855; -0.986238; -0.999436; -0.972923; -0.907755; -0.806531; -0.673287; -0.513333; -0.333047; -0.139617; 0.0592467; 0.255615; 0.44166; 0.609964; 0.753818; 0.867487; 0.946439; 0.987526; 0.989111; 0.95113; 0.875097; 0.764044; 0.622398; 0.455806; 0.27091; 0.0750802; -0.123876; -0.318026; -0.499631; -0.66145; -0.797032; -0.900972; -0.969126; -0.998776];
plot(x, y, '-r');
hold off
title('My plot title');
xlabel('My x-axis title');
ylabel('My y-axis title');
Use this in the head section:
<meta name="csrf-token" content="{{ csrf_token() }}">
and get the csrf token in ajax:
$.ajaxSetup({
headers: {
'X-CSRF-TOKEN': $('meta[name="csrf-token"]').attr('content')
}
});
Please refer Laravel Documentation csrf_token
The following is what I use to commit changes on foo
to N=1
days in the past:
git add foo
git commit -m "Update foo"
git commit --amend --date="$(date -v-1d)"
If you want to commit to a even older date, say 3 days back, just change the date
argument: date -v-3d
.
That's really useful when you forget to commit something yesterday, for instance.
UPDATE: --date
also accepts expressions like --date "3 days ago"
or even --date "yesterday"
. So we can reduce it to one line command:
git add foo ; git commit --date "yesterday" -m "Update"
You could use something like this
var el = document.createElement("svg");
el.style.width="600px";
el.style.height="100px";
....
iElement[0].appendChild(el)
Underscore-java library has static method U.jsonToXml(jsonstring)
. I am the maintainer of the project. Live example
import com.github.underscore.lodash.U;
public class MyClass {
public static void main(String args[]) {
String json = "{\"name\":\"JSON\",\"integer\":1,\"double\":2.0,\"boolean\":true,\"nested\":{\"id\":42},\"array\":[1,2,3]}";
System.out.println(json);
String xml = U.jsonToXml(json);
System.out.println(xml);
}
}
Output:
{"name":"JSON","integer":1,"double":2.0,"boolean":true,"nested":{"id":42},"array":[1,2,3]}
<?xml version="1.0" encoding="UTF-8"?>
<root>
<name>JSON</name>
<integer number="true">1</integer>
<double number="true">2.0</double>
<boolean boolean="true">true</boolean>
<nested>
<id number="true">42</id>
</nested>
<array number="true">1</array>
<array number="true">2</array>
<array number="true">3</array>
</root>
Please just go to your terminal then type:
$rm __pycache__
and it will be removed.
2019 update:
html
<form class="fr" method='POST' enctype="multipart/form-data"> {% csrf_token %}
<textarea name='text'>
<input name='example_image'>
<button type="submit">
</form>
js
$(document).on('submit', '.fr', function(){
$.ajax({
type: 'post',
url: url, <--- you insert proper URL path to call your views.py function here.
enctype: 'multipart/form-data',
processData: false,
contentType: false,
data: new FormData(this) ,
success: function(data) {
console.log(data);
}
});
return false;
});
views.py
form = ThisForm(request.POST, request.FILES)
if form.is_valid():
text = form.cleaned_data.get("text")
example_image = request.FILES['example_image']
Since you're using SQL Server 2008, you have the geography
data type available, which is designed for exactly this kind of data:
DECLARE @source geography = 'POINT(0 51.5)'
DECLARE @target geography = 'POINT(-3 56)'
SELECT @source.STDistance(@target)
Gives
----------------------
538404.100197555
(1 row(s) affected)
Telling us it is about 538 km from (near) London to (near) Edinburgh.
Naturally there will be an amount of learning to do first, but once you know it it's far far easier than implementing your own Haversine calculation; plus you get a LOT of functionality.
If you want to retain your existing data structure, you can still use STDistance
, by constructing suitable geography
instances using the Point
method:
DECLARE @orig_lat DECIMAL(12, 9)
DECLARE @orig_lng DECIMAL(12, 9)
SET @orig_lat=53.381538 set @orig_lng=-1.463526
DECLARE @orig geography = geography::Point(@orig_lat, @orig_lng, 4326);
SELECT *,
@orig.STDistance(geography::Point(dest.Latitude, dest.Longitude, 4326))
AS distance
--INTO #includeDistances
FROM #orig dest
I'm not going into the whole question of whether or not you want unattended updates in production (I think not). I'm just leaving this here for reference in case anybody finds it useful. Update all your docker images to the latest version with the following command in your terminal:
# docker images | awk '(NR>1) && ($2!~/none/) {print $1":"$2}' | xargs -L1 docker pull
Sounds like you don't have the execute flag set on the file permissions, try:
chmod u+x program_name
After getting an image from the gallery, just pass the URI in the below method only for Android 4.4 (KitKat):
public String getPath(Uri contentUri) {// Will return "image:x*"
String wholeID = DocumentsContract.getDocumentId(contentUri);
// Split at colon, use second item in the array
String id = wholeID.split(":")[1];
String[] column = { MediaStore.Images.Media.DATA };
// Where id is equal to
String sel = MediaStore.Images.Media._ID + "=?";
Cursor cursor = getContentResolver().query(
MediaStore.Images.Media.EXTERNAL_CONTENT_URI, column, sel,
new String[] { id }, null);
String filePath = "";
int columnIndex = cursor.getColumnIndex(column[0]);
if (cursor.moveToFirst()) {
filePath = cursor.getString(columnIndex);
}
cursor.close();
return filePath;
}
If style and format are going to be part of your reviews, there should be an agreed upon style guide to measure against. If there is one, do what the style guide says. If there's not one, details like this should be left as they are written. It's a waste of time and energy, and distracts from what code reviews really ought to be uncovering. Seriously, without a style guide I would push to NOT change code like this as a matter of principle, even when it doesn't use the convention I prefer.
And not that it matters, but my personal preference is if (ptr)
. The meaning is more immediately obvious to me than even if (ptr == NULL)
.
Maybe he's trying to say that it's better to handle error conditions before the happy path? In that case I still don't agree with the reviewer. I don't know that there's an accepted convention for this, but in my opinion the most "normal" condition ought to come first in any if statement. That way I've got less digging to do to figure out what the function is all about and how it works.
The exception to this is if the error causes me to bail from the function, or I can recover from it before moving on. In those cases, I do handle the error first:
if (error_condition)
bail_or_fix();
return if not fixed;
// If I'm still here, I'm on the happy path
By dealing with the unusual condition up front, I can take care of it and then forget about it. But if I can't get back on the happy path by handling it up front, then it should be handled after the main case because it makes the code more understandable. In my opinion.
But if it's not in a style guide then it's just my opinion, and your opinion is just as valid. Either standardize or don't. Don't let a reviewer pseudo-standardize just because he's got an opinion.
git was working fine for be and all of sudden it started showing this fatal: Not a git repository (or any of the parent directories): .git
message.
For me not sure what was corrupted in .git folder, I did git clone ** newfolder
and copied the entire .git folder to my corrupted/old folder where I was making changes before git started showing error message..
Everything got back to normal and git also recognized my changed/un-staged files.
All of the other answers here have problems.
The document.createElement('div') methods (including those using jQuery) execute any javascript passed into it (a security issue) and the DOMParser.parseFromString() method trims whitespace. Here is a pure javascript solution that has neither problem:
function htmlDecode(html) {
var textarea = document.createElement("textarea");
html= html.replace(/\r/g, String.fromCharCode(0xe000)); // Replace "\r" with reserved unicode character.
textarea.innerHTML = html;
var result = textarea.value;
return result.replace(new RegExp(String.fromCharCode(0xe000), 'g'), '\r');
}
TextArea is used specifically to avoid executig js code. It passes these:
htmlDecode('<& >'); // returns "<& >" with non-breaking space.
htmlDecode(' '); // returns " "
htmlDecode('<img src="dummy" onerror="alert(\'xss\')">'); // Does not execute alert()
htmlDecode('\r\n') // returns "\r\n", doesn't lose the \r like other solutions.
Hmm, you could also just make a 1 pixel wide line with a length of 1 pixel and make it's direction move along a single axis.
ctx.beginPath();
ctx.lineWidth = 1; // one pixel wide
ctx.strokeStyle = rgba(...);
ctx.moveTo(50,25); // positioned at 50,25
ctx.lineTo(51,25); // one pixel long
ctx.stroke();
You can use the following code (For example if one was to want to copy cell data from Sheet2
to Sheet1
).
Sub Copy
Worksheets("Sheet1").Activate
Worksheets("Sheet1").Range(Cells(i, 6), Cells(i, FullPathLastColumn)).Copy_
Destination:=Worksheets("Sheet2").Cells(Path2Row, Path2EndColumn + 1)
End Sub
The overall dimensions of a range are in its Width
and Height
properties.
Dim r As Range
Set r = ActiveSheet.Range("A4:H12")
Debug.Print r.Width
Debug.Print r.Height
Short snippet for future visitors - how to center horizontal table-cell (+ vertically)
html, body {_x000D_
width: 100%;_x000D_
height: 100%;_x000D_
}_x000D_
_x000D_
.tab {_x000D_
display: table;_x000D_
width: 100%;_x000D_
height: 100%;_x000D_
}_x000D_
_x000D_
.cell {_x000D_
display: table-cell;_x000D_
vertical-align: middle;_x000D_
text-align: center; /* the key */_x000D_
background-color: #EEEEEE;_x000D_
}_x000D_
_x000D_
.content {_x000D_
display: inline-block; /* important !! */_x000D_
width: 100px;_x000D_
background-color: #00FF00;_x000D_
}
_x000D_
<div class="tab">_x000D_
<div class="cell">_x000D_
<div class="content" id="a">_x000D_
<p>Content</p>_x000D_
</div>_x000D_
</div>_x000D_
</div>
_x000D_
include Jquery and Jquery UI plugins and try this
$("#LeftSidePane").toggle('slide','left',400);
Try this:
Create A Macro with the following thing inside:
Selection.Copy
ActiveCell.Offset(1, 0).Select
ActiveSheet.Paste
ActiveCell.Offset(-1, 1).Select
Selection.Copy
ActiveCell.Offset(1, 0).Select
ActiveSheet.Paste
ActiveCell.Offset(0, -1).Select
That particular macro will copy the current cell (place your cursor in the VOL cell you wish to copy) down one row and then copy the CAP cell also.
This is only a single loop so you can automate copying VOL and CAP of where your current active cell (where your cursor is) to down 1 row.
Just put it inside a For loop statement to do it x number of times. like:
For i = 1 to 100 'Do this 100 times
Selection.Copy
ActiveCell.Offset(1, 0).Select
ActiveSheet.Paste
ActiveCell.Offset(-1, 1).Select
Selection.Copy
ActiveCell.Offset(1, 0).Select
ActiveSheet.Paste
ActiveCell.Offset(0, -1).Select
Next i
This one is even simpler and execs no external commands.
$ PROC_NAME="JBoss"
$ PROC_STATUS="UP"
$ printf "%-.20s [%s]\n" "${PROC_NAME}................................" "$PROC_STATUS"
JBoss............... [UP]
var myDate = new Date();
var prettyDate =(myDate.getMonth()+1) + '/' + myDate.getDate() + '/' +
myDate.getFullYear();
$("#date_pretty").val(prettyDate);
seemed to work, but there might be a better way out there..
If you are attempting to debug from a different computer than you were originally you will get the dreaded INSTALL_FAILED_UPDATE_INCOMPATIBLE error. However, there is a way to proceed without uninstalling the app and losing your data.
To see how to transfer the debug.keystore that is required so you don't get the message "The device already has an application with the same application but a different signature. In order to proceed you will have to uninstall the existing application." (and lose your data). See Update the app in another machine with same debug.keystore in android
df.groupby('l_customer_id_i').agg(lambda x: ','.join(x))
does already return a dataframe, so you cannot loop over the groups anymore.
In general:
df.groupby(...)
returns a GroupBy
object (a DataFrameGroupBy or SeriesGroupBy), and with this, you can iterate through the groups (as explained in the docs here). You can do something like:
grouped = df.groupby('A')
for name, group in grouped:
...
When you apply a function on the groupby, in your example df.groupby(...).agg(...)
(but this can also be transform
, apply
, mean
, ...), you combine the result of applying the function to the different groups together in one dataframe (the apply and combine step of the 'split-apply-combine' paradigm of groupby). So the result of this will always be again a DataFrame (or a Series depending on the applied function).
I use:
Membership.GetUser().UserName
I am not sure this will work in ASP.NET MVC, but it's worth a shot :)
There are two ways to go about doing this.
Create a state in the constructor that contains the text input. Attach an onChange event to the input box that updates state each time. Then onClick you could just alert the state object.
handleClick: function() { alert(this.refs.myInput.value); },
You can use the button :
1 - make the text empty
2 - set the background for it
+3 - you can use the selector to more useful and nice button
About the imagebutton you can set the image source and the background the same picture and it must be (*.png) when you do it you can make any design for the button
and for more beauty button use the selector //just Google it ;)
Supporting the initial question. I tried to get the spacing to 5px on the UICollectionView
but this does not work, as well with a UIEdgeInsetsMake(0,0,0,0)
...
On a UITableView I can do this by directly specifying the x,y coordinates in a row...
Heres my UICollectionView code:
#pragma mark collection view cell layout / size
- (CGSize)collectionView:(UICollectionView*)collectionView layout:(UICollectionViewLayout *)collectionViewLayout sizeForItemAtIndexPath:(NSIndexPath *)indexPath {
return [self getCellSize:indexPath]; // will be w120xh100 or w190x100
// if the width is higher, only one image will be shown in a line
}
#pragma mark collection view cell paddings
- (UIEdgeInsets)collectionView:(UICollectionView*)collectionView layout:(UICollectionViewLayout *)collectionViewLayout insetForSectionAtIndex:(NSInteger)section {
return UIEdgeInsetsMake(0, 0, 0, 0); // top, left, bottom, right
}
- (CGFloat)collectionView:(UICollectionView *)collectionView layout:(UICollectionViewLayout*)collectionViewLayout minimumInteritemSpacingForSectionAtIndex:(NSInteger)section {
return 5.0;
}
#import "ViewController.h"
#import "MagazineCell.h" // created just the default class.
static NSString * const cellID = @"cellID";
@interface ViewController ()
@end
@implementation ViewController
#pragma mark - Collection view
-(NSInteger)numberOfSectionsInCollectionView:(UICollectionView *)collectionView
{
return 1;
}
-(NSInteger)collectionView:(UICollectionView *)collectionView numberOfItemsInSection:(NSInteger)section
{
return 30;
}
-(UICollectionViewCell *)collectionView:(UICollectionView *)collectionView cellForItemAtIndexPath:(NSIndexPath *)indexPath
{
MagazineCell *mCell = (MagazineCell *)[collectionView dequeueReusableCellWithReuseIdentifier:cellID forIndexPath:indexPath];
mCell.backgroundColor = [UIColor lightGrayColor];
return mCell;
}
#pragma mark Collection view layout things
// Layout: Set cell size
- (CGSize)collectionView:(UICollectionView *)collectionView layout:(UICollectionViewLayout*)collectionViewLayout sizeForItemAtIndexPath:(NSIndexPath *)indexPath {
NSLog(@"SETTING SIZE FOR ITEM AT INDEX %d", indexPath.row);
CGSize mElementSize = CGSizeMake(104, 104);
return mElementSize;
}
- (CGFloat)collectionView:(UICollectionView *)collectionView layout:(UICollectionViewLayout*)collectionViewLayout minimumInteritemSpacingForSectionAtIndex:(NSInteger)section {
return 2.0;
}
- (CGFloat)collectionView:(UICollectionView *)collectionView layout:(UICollectionViewLayout*)collectionViewLayout minimumLineSpacingForSectionAtIndex:(NSInteger)section {
return 2.0;
}
// Layout: Set Edges
- (UIEdgeInsets)collectionView:
(UICollectionView *)collectionView layout:(UICollectionViewLayout*)collectionViewLayout insetForSectionAtIndex:(NSInteger)section {
// return UIEdgeInsetsMake(0,8,0,8); // top, left, bottom, right
return UIEdgeInsetsMake(0,0,0,0); // top, left, bottom, right
}
@end
If ANSI_NULLS is set to "ON" and if we apply = , <> on NULL column value while writing select statement then it will not return any result.
Example
create table #tempTable (sn int, ename varchar(50))
insert into #tempTable
values (1, 'Manoj'), (2, 'Pankaj'), (3, NULL), (4, 'Lokesh'), (5, 'Gopal')
SET ANSI_NULLS ON
select * from #tempTable where ename is NULL -- (1 row(s) affected)
select * from #tempTable where ename = NULL -- (0 row(s) affected)
select * from #tempTable where ename is not NULL -- (4 row(s) affected)
select * from #tempTable where ename <> NULL -- (0 row(s) affected)
SET ANSI_NULLS OFF
select * from #tempTable where ename is NULL -- (1 row(s) affected)
select * from #tempTable where ename = NULL -- (1 row(s) affected)
select * from #tempTable where ename is not NULL -- (4 row(s) affected)
select * from #tempTable where ename <> NULL -- (4 row(s) affected)
getattr
calls method by name from an object.
But this object should be parent of calling class.
The parent class can be got by super(self.__class__, self)
class Base:
def call_base(func):
"""This does not work"""
def new_func(self, *args, **kwargs):
name = func.__name__
getattr(super(self.__class__, self), name)(*args, **kwargs)
return new_func
def f(self, *args):
print(f"BASE method invoked.")
def g(self, *args):
print(f"BASE method invoked.")
class Inherit(Base):
@Base.call_base
def f(self, *args):
"""function body will be ignored by the decorator."""
pass
@Base.call_base
def g(self, *args):
"""function body will be ignored by the decorator."""
pass
Inherit().f() # The goal is to print "BASE method invoked."
Use ISNULL to overcome it.
Example:
SELECT (ISNULL(field1, '') + '' + ISNULL(field2, '')+ '' + ISNULL(field3, '')) FROM table1
This will then replace your NULL content with an empty string which will preserve the concatentation operation from evaluating as an overall NULL result.
Just to complement, if you want to be able to calculate larger numbers, you should use BigInteger.
An iterative example.
import java.math.BigInteger;
class Fibonacci{
public static void main(String args[]){
int n=10000;
BigInteger[] vec = new BigInteger[n];
vec[0]=BigInteger.ZERO;
vec[1]=BigInteger.ONE;
// calculating
for(int i = 2 ; i<n ; i++){
vec[i]=vec[i-1].add(vec[i-2]);
}
// printing
for(int i = vec.length-1 ; i>=0 ; i--){
System.out.println(vec[i]);
System.out.println("");
}
}
}
If you google. "Count down for loop python" you get these, which are pretty accurate.
how to loop down in python list (countdown)
Loop backwards using indices in Python?
I recommend doing minor searches before posting. Also "Learn Python The Hard Way" is a good place to start.
This might also help:
void ButtQuitClick(object sender, EventArgs e)
{
QuitWin form = new QuitWin();
form.Show();
}
Change ButtQuit to your button name and also change QuitWin to the name of the form that you made.
When the button is clicked it will open another window, you will need to make another form and a button on your main form for it to work.
Here's a solution that mixes the code by Jared Rummler and AndroidMechanic.
Note: fb://facewebmodal/f?href=
redirects to a weird facebook page that doesn't have the like and other important buttons, which is why I try fb://page/
. It works fine with the current Facebook version (126.0.0.21.77, June 1st 2017). The catch might be useless, I left it just in case.
public static String getFacebookPageURL(Context context)
{
final String FACEBOOK_PAGE_ID = "123456789";
final String FACEBOOK_URL = "MyFacebookPage";
if(appInstalledOrNot(context, "com.facebook.katana"))
{
try
{
return "fb://page/" + FACEBOOK_PAGE_ID;
// previous version, maybe relevant for old android APIs ?
// return "fb://facewebmodal/f?href=" + FACEBOOK_URL;
}
catch(Exception e) {}
}
else
{
return FACEBOOK_URL;
}
}
Here's the appInstalledOrNot
function which I took (and modified) from Aerrow's answer to this post
private static boolean appInstalledOrNot(Context context, String uri)
{
PackageManager pm = context.getPackageManager();
try
{
pm.getPackageInfo(uri, PackageManager.GET_ACTIVITIES);
return true;
}
catch(PackageManager.NameNotFoundException e)
{
}
return false;
}
How to get the Facebook ID of a page:
View Page Source
fb://page/?id=
All the posts are slightly non-idiomatic. The idiom is:
open my $fh, '<', $filename or die "error opening $filename: $!";
my $data = do { local $/; <$fh> };
Mostly, there is no need to set $/ to undef
.
Assuming you have a song class (you can refer below), the traditional implementation would be like as follows
class Song
{
private String author_name;
public String setauthorname(String X) {}; //implementation goes here
public String getauthorname() {}; //implementation goes here
}
Now, consider this class implementation.
class Song
{
private String author_name;
public String Author_Name
{
get { return author_name; }
set { author_name= value; }
}
}
In your 'Main' class, you will wrote your code as
class TestSong
{
public static void Main(String[] Args)
{
Song _song = new Song(); //create an object for class 'Song'
_song.Author_Name = 'John Biley';
String author = _song.Author_Name;
Console.WriteLine("Authorname = {0}"+author);
}
}
Point to be noted;
The method you set/get should be public or protected(take care) but strictly shouldnt be private.
You know how when you are running JavaScript in the browser, you have access to variables like "window" or Math? You do not have to declare these variables, they have been written for you to use whenever you want.
Well, when you are running a file in the Node.js environment, there is a variable that you can use. It is called "module" It is an object. It has a property called "exports." And it works like this:
In a file that we will name example.js, you write:
example.js
module.exports = "some code";
Now, you want this string "some code" in another file.
We will name the other file otherFile.js
In this file, you write:
otherFile.js
let str = require('./example.js')
That require() statement goes to the file that you put inside of it, finds whatever data is stored on the module.exports property. The let str = ... part of your code means that whatever that require statement returns is stored to the str variable.
So, in this example, the end-result is that in otherFile.js you now have this:
let string = "some code";
let str = ('./example.js').module.exports
Note:
the file-name that is written inside of the require statement: If it is a local file, it should be the file-path to example.js. Also, the .js extension is added by default, so I didn't have to write it.
You do something similar when requiring node.js libraries, such as Express. In the express.js file, there is an object named 'module', with a property named 'exports'.
So, it looks something like along these lines, under the hood (I am somewhat of a beginner so some of these details might not be exact, but it's to show the concept:
express.js
module.exports = function() {
//It returns an object with all of the server methods
return {
listen: function(port){},
get: function(route, function(req, res){}){}
}
}
If you are requiring a module, it looks like this: const moduleName = require("module-name");
If you are requiring a local file, it looks like this: const localFile = require("./path/to/local-file");
(notice the ./ at the beginning of the file name)
Also note that by default, the export is an object .. eg module.exports = {} So, you can write module.exports.myfunction = () => {} before assigning a value to the module.exports. But you can also replace the object by writing module.exports = "I am not an object anymore."
There are four ways to do this as I know
const array = [{id:1,name:'Jim'},{id:2,name:'Parker'}];
const toDelete = 1;
The first:
_.reject(array, {id:toDelete})
The second one is :
_.remove(array, {id:toDelete})
In this way the array will be mutated.
The third one is :
_.differenceBy(array,[{id:toDelete}],'id')
// If you can get remove item
// _.differenceWith(array,[removeItem])
The last one is:
_.filter(array,({id})=>id!==toDelete)
I am learning lodash
Answer to make a record, so that I can find it later.
For Windows, you can also whitelist your extension through Windows policies. The full steps are details in this answer, but there are quicker steps:
HKEY_LOCAL_MACHINE\SOFTWARE\Policies\Google\Chrome\ExtensionInstallWhitelist
.For instance, in order to whitelist 2 extensions with ID aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa
and bbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbb
, create a string value with name 1
and value aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa
, and a second value with name 2
and value bbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbb
. This can be sum up by this registry file:
Windows Registry Editor Version 5.00
[HKEY_LOCAL_MACHINE\SOFTWARE\Policies\Google\Chrome]
[HKEY_LOCAL_MACHINE\SOFTWARE\Policies\Google\Chrome\ExtensionInstallWhitelist]
"1"="aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa"
"2"="bbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbb"
EDIT: actually, Chromium docs also indicate how to do it for other OS.
try this:
=(RIGHT(E9;3))+(MID(E9;7;2)*1000)+(MID(E9;5;2)*3600000)+(LEFT(E9;2)*216000000)
Maybe you need to change semi-colon by coma...
Oracle 11G Express Edition is now available to install on 64-bit versions of Windows.
Box shadows can use commas to have multiple effects, just like with background images (in CSS3).
I've not used it, but SendKeys may do what you want.
Use SendKeys to send keystrokes and keystroke combinations to the active application. This class cannot be instantiated. To send a keystroke to a class and immediately continue with the flow of your program, use Send. To wait for any processes started by the keystroke, use SendWait.
System.Windows.Forms.SendKeys.Send("A");
System.Windows.Forms.SendKeys.Send("{ENTER}");
Microsoft has some more usage examples here.
It looks like mysql service is either not working or stopped. you can start it by using below command (in Ubuntu):
service mysql start
It should work! If you are using any other operating system than Ubuntu then use appropriate way to start mysql
Assuming you mean "built-in":
int x = 100;
System.out.println(Integer.toBinaryString(x));
(Long
has a similar method, BigInteger
has an instance method where you can specify the radix.)
In Android studio 0.8.0 you should enable ADB integration through Tools -> Android, before run your app. Then the log cat will work correctly. Notice that if you make ADB integration disabled while your app is running and again make it enable, then the log cat dosen't show anything unless you rebuild your project.
You may append HTML <br />
in between your lines. Something like:
MyLabel.Text = "SomeText asdfa asd fas df asdf" + "<br />" + "Some more text";
With StringBuilder you can try:
StringBuilder sb = new StringBuilder();
sb.AppendLine("Some text with line one");
sb.AppendLine("Some mpre text with line two");
MyLabel.Text = sb.ToString().Replace(Environment.NewLine, "<br />");
Instead of using ">" to redirect like this:
java Foo > log
use ">>" to append normal "stdout" output to a new or existing file:
java Foo >> log
However, if you also want to capture "stderr" errors (such as why the Java program couldn't be started), you should also use the "2>&1" tag which redirects "stderr" (the "2") to "stdout" (the "1"). For example:
java Foo >> log 2>&1
Heredoc may be an option, see example 2 here: http://php.net/manual/en/language.types.string.php
Use different format or pattern to get the information from the date
var myDate = new Date("2015-06-17 14:24:36");_x000D_
console.log(moment(myDate).format("YYYY-MM-DD HH:mm:ss"));_x000D_
console.log("Date: "+moment(myDate).format("YYYY-MM-DD"));_x000D_
console.log("Year: "+moment(myDate).format("YYYY"));_x000D_
console.log("Month: "+moment(myDate).format("MM"));_x000D_
console.log("Month: "+moment(myDate).format("MMMM"));_x000D_
console.log("Day: "+moment(myDate).format("DD"));_x000D_
console.log("Day: "+moment(myDate).format("dddd"));_x000D_
console.log("Time: "+moment(myDate).format("HH:mm")); // Time in24 hour format_x000D_
console.log("Time: "+moment(myDate).format("hh:mm A"));
_x000D_
<script src="https://momentjs.com/downloads/moment.js"></script>
_x000D_
For more info: https://momentjs.com/docs/#/parsing/string-format/
I couldn't get the 'require' error to go away by using any of the tricks above.
But I found out that the issue was that my TypeScript tools for Visual Studio where an old version (1.8.6.0) and the latest version as of today is (2.0.6.0).
You can download the latest version of the tools from:
Found an XML transform stylesheet here (wayback machine link, site itself is in german)
The stylesheet added here could be helpful:
<xsl:stylesheet version="1.0"
xmlns:xsl="http://www.w3.org/1999/XSL/Transform">
<xsl:output method="text" encoding="iso-8859-1"/>
<xsl:strip-space elements="*" />
<xsl:template match="/*/child::*">
<xsl:for-each select="child::*">
<xsl:if test="position() != last()">"<xsl:value-of select="normalize-space(.)"/>", </xsl:if>
<xsl:if test="position() = last()">"<xsl:value-of select="normalize-space(.)"/>"<xsl:text>
</xsl:text>
</xsl:if>
</xsl:for-each>
</xsl:template>
</xsl:stylesheet>
Perhaps you want to remove the quotes inside the xsl:if tags so it doesn't put your values into quotes, depending on where you want to use the CSV file.
CASE
isn't used for flow control... for this, you would need to use IF
...
But, there's a set-based solution to this problem instead of the procedural approach:
UPDATE tblEmployee
SET
InOffice = CASE WHEN @NewStatus = 'InOffice' THEN -1 ELSE InOffice END,
OutOffice = CASE WHEN @NewStatus = 'OutOffice' THEN -1 ELSE OutOffice END,
Home = CASE WHEN @NewStatus = 'Home' THEN -1 ELSE Home END
WHERE EmpID = @EmpID
Note that the ELSE
will preserves the original value if the @NewStatus
condition isn't met.
If you are looking for a solution to your particular case, it would be:
Date date = new SimpleDateFormat("yyyy-MM-dd'T'HH:mm:ss.SSS'Z'").parse("2012-05-20T09:00:00.000Z");
String formattedDate = new SimpleDateFormat("dd/MM/yyyy, Ka").format(date);
I have made a function for that, you only call it in a batch program within needing to code more.
The working is basically the same as the others, as it's the best way to do it.
Here's the link where I have that function
For people who are using Microsoft SQL Server Manager and want to create a Unique but Nullable index you can create your unique index as you normally would then in your Index Properties for your new index, select "Filter" from the left hand panel, then enter your filter (which is your where clause). It should read something like this:
([YourColumnName] IS NOT NULL)
This works with MSSQL 2012
One important note, the solution mentioned above will not work on local host, you have to upload your code to server and then it will work. I was getting no error, than bad request, the problem was I was using localhost (test.dev,myproject.git). Both solution above work, the solution that uses SSL cert is recommended.
Go to https://curl.haxx.se/docs/caextract.html, download the latest cacert.pem. Store is somewhere (not in public folder - but will work regardless)
Use this code
".$result; //echo "
Path:".$_SERVER['DOCUMENT_ROOT'] . "/ssl/cacert.pem"; // this is for troubleshooting only ?>
its very simple use this css (replace image.jpg with your background image)
body{height:100%;
width:100%;
background-image:url(image.jpg);/*your background image*/
background-repeat:no-repeat;/*we want to have one single image not a repeated one*/
background-size:cover;/*this sets the image to fullscreen covering the whole screen*/
/*css hack for ie*/
filter:progid:DXImageTransform.Microsoft.AlphaImageLoader(src='.image.jpg',sizingMethod='scale');
-ms-filter:"progid:DXImageTransform.Microsoft.AlphaImageLoader(src='image.jpg',sizingMethod='scale')";
}
@andi I tested your code, it works great, BUT
In my sheets there's a column like this
2013-03-06T04:00:00
date and time in the same cell
It gets garbled during exportation, it's like this in the exported file
41275.0416667
other columns are ok.
csvkit, on the other side, does ok with that column but only exports ONE sheet, and my files have many.
Example: index = False
import pandas as pd
writer = pd.ExcelWriter("dataframe.xlsx", engine='xlsxwriter')
dataframe.to_excel(writer,sheet_name = dataframe, index=False)
writer.save()
Turns out that the post (or rather the whole table) was locked by the very same connection that I tried to update the post with.
I had a opened record set of the post that was created by:
Set RecSet = Conn.Execute()
This type of recordset is supposed to be read-only and when I was using MS Access as database it did not lock anything. But apparently this type of record set did lock something on MS SQL Server 2012 because when I added these lines of code before executing the UPDATE SQL statement...
RecSet.Close
Set RecSet = Nothing
...everything worked just fine.
So bottom line is to be careful with opened record sets - even if they are read-only they could lock your table from updates.
char string[something];
sprintf(string, "%d", 42);
Unfortunately, no. You will have to cast each value individually.
The IPAddress Java library can accomplish what you are describing here.
IPv6 addresses are 16 bytes. Using that library, if you are starting with a 16-byte array you can construct the IPv6 address object:
IPv6Address addr = new IPv6Address(bytes); //bytes is byte[16]
From there you can check if the address is IPv4 mapped, IPv4 compatible, IPv4 translated, and so on (there are many possible ways IPv6 represents IPv4 addresses). In most cases, if an IPv6 address represents an IPv4 address, the ipv4 address is in the lower 4 bytes, and so you can get the derived IPv4 address as follows. Afterwards, you can convert back to bytes, which will be just 4 bytes for IPv4.
if(addr.isIPv4Compatible() || addr.isIPv4Mapped()) {
IPv4Address derivedIpv4Address = addr.getEmbeddedIPv4Address();
byte ipv4Bytes[] = derivedIpv4Address.getBytes();
...
}
The javadoc is available at the link.
<xsl:variable name="count" select="count(/Property/long = $parPropId)"/>
Un-tested but I think that should work. I'm assuming the Property nodes are direct children of the root node and therefor taking out your descendant selector for peformance
The method I use is one of these or Hmisc::cut2(value, g=4)
:
temp$quartile <- with(temp, cut(value,
breaks=quantile(value, probs=seq(0,1, by=0.25), na.rm=TRUE),
include.lowest=TRUE))
An alternate might be:
temp$quartile <- with(temp, factor(
findInterval( val, c(-Inf,
quantile(val, probs=c(0.25, .5, .75)), Inf) , na.rm=TRUE),
labels=c("Q1","Q2","Q3","Q4")
))
The first one has the side-effect of labeling the quartiles with the values, which I consider a "good thing", but if it were not "good for you", or the valid problems raised in the comments were a concern you could go with version 2. You can use labels=
in cut
, or you could add this line to your code:
temp$quartile <- factor(temp$quartile, levels=c("1","2","3","4") )
Or even quicker but slightly more obscure in how it works, although it is no longer a factor, but rather a numeric vector:
temp$quartile <- as.numeric(temp$quartile)
I had the same issue because of not enough memory on a server machine.
Actually there was 1/16 gb of memory available, but IIS automatically started working properly after unload several unused apps (they not owned port 80).
Adding a solution for those who encountered this error while running on amazon-eks.
First of all run:
kubectl describe svc <service-name>
And then review the events
field in the example output below:
Name: some-service
Namespace: default
Labels: <none>
Annotations: kubectl.kubernetes.io/last-applied-configuration:
{"apiVersion":"v1","kind":"Service","metadata":{"annotations":{},"name":"some-service","namespace":"default"},"spec":{"ports":[{"port":80,...
Selector: app=some
Type: LoadBalancer
IP: 10.100.91.19
Port: <unset> 80/TCP
TargetPort: 5000/TCP
NodePort: <unset> 31022/TCP
Endpoints: <none>
Session Affinity: None
External Traffic Policy: Cluster
Events:
Type Reason Age From Message
---- ------ ---- ---- -------
Normal EnsuringLoadBalancer 68s service-controller Ensuring load balancer
Warning SyncLoadBalancerFailed 67s service-controller Error syncing load balancer: failed to ensure load balancer: could not find any suitable subnets for creating the ELB
Review the error message:
Failed to ensure load balancer: could not find any suitable subnets for creating the ELB
In my case, the reason that no suitable subnets were provided for creating the ELB were:
1: The EKS cluster was deployed on the wrong subnets group - internal subnets instead of public facing.
(*) By default, services of type LoadBalancer
create public-facing load balancers if no service.beta.kubernetes.io/aws-load-balancer-internal: "true"
annotation was provided).
2: The Subnets weren't tagged according to the requirements mentioned here.
Tagging VPC with:
Key: kubernetes.io/cluster/yourEKSClusterName
Value: shared
Tagging public subnets with:
Key: kubernetes.io/role/elb
Value: 1
This seems to work in R (apologies for ugliness, would like to see better version!).
pnpoly <- function(nvert,vertx,verty,testx,testy){
c <- FALSE
j <- nvert
for (i in 1:nvert){
if( ((verty[i]>testy) != (verty[j]>testy)) &&
(testx < (vertx[j]-vertx[i])*(testy-verty[i])/(verty[j]-verty[i])+vertx[i]))
{c <- !c}
j <- i}
return(c)}
RaYell,
You don't need to parse the value returned. document.getElementById("FileUpload1").value
returns only the file name with extension.
This was useful for me because I wanted to copy the name of the file to be uploaded to an input box called 'title'. In my application, the uploaded file is renamed to the index generated by the backend database and the title is stored in the database.
Add above code in API gateway under GET-Integration Request> mapping section.
When setUp()
is in a superclass of the test class (e.g. AbstractTestBase
below), the accepted answer can be modified as follows:
public abstract class AbstractTestBase {
private static Class<? extends AbstractTestBase> testClass;
.....
public void setUp() {
if (this.getClass().equals(testClass)) {
return;
}
// do the setup - once per concrete test class
.....
testClass = this.getClass();
}
}
This should work for a single non-static setUp()
method but I'm unable to produce an equivalent for tearDown()
without straying into a world of complex reflection... Bounty points to anyone who can!
javascript solution will be better
is-ellipsis
class if the window resize or elment changeElement.getClientRects()
works like this
each rects in the same row has the same top
value, so find out the rects with different top
value, like this
function getRowRects(element) {
var rects = [],
clientRects = element.getClientRects(),
len = clientRects.length,
clientRect, top, rectsLen, rect, i;
for(i=0; i<len; i++) {
has = false;
rectsLen = rects.length;
clientRect = clientRects[i];
top = clientRect.top;
while(rectsLen--) {
rect = rects[rectsLen];
if (rect.top == top) {
has = true;
break;
}
}
if(has) {
rect.right = rect.right > clientRect.right ? rect.right : clientRect.right;
rect.width = rect.right - rect.left;
}
else {
rects.push({
top: clientRect.top,
right: clientRect.right,
bottom: clientRect.bottom,
left: clientRect.left,
width: clientRect.width,
height: clientRect.height
});
}
}
return rects;
}
...more
like this
like this
You can also use a service called Filepicker
which will store your image to their servers and Filepicker which is now called Filestack, will provide you with a url to the image. You can than store the url to Firebase.
As soon as a WHEN statement is true the break is implicit.
You will have to concider which WHEN Expression is the most likely to happen. If you put that WHEN at the end of a long list of WHEN statements, your sql is likely to be slower. So put it up front as the first.
More information here: break in case statement in T-SQL
There is no difference between using OR ; i.e. it is a convention used by C++ programmers. I myself prefer as it more clearly describes it use; i.e. defining a template with a specific type :)
Note: There is one exception where you do have to use class (and not typename) when declaring a template template parameter:
template <template class T> class C { }; // valid!
template <template typename T> class C { }; // invalid!
In most cases, you will not be defining a nested template definition, so either definition will work -- just be consistent in your use...
The systemd
way to do this is to have the process "talk back" when it's setup somehow, like by opening a socket or sending a notification (or a parent script exiting). Which is of course not always straight-forward especially with third party stuff :|
You might be able to do something inline like
ExecStart=/bin/bash -c '/bin/start_cassandra &; do_bash_loop_waiting_for_it_to_come_up_here'
or a script that does the same. Or put do_bash_loop_waiting_for_it_to_come_up_here
in an ExecStartPost
Or create a helper .service that waits for it to come up, so the helper service depends on cassandra, and waits for it to come up, then your other process can depend on the helper service.
(May want to increase TimeoutStartSec from the default 90s as well)
This is what you have to do since sess.createCriteria is deprecated:
CriteriaBuilder builder = getSession().getCriteriaBuilder();
CriteriaQuery<User> q = builder.createQuery(User.class);
Root<User> usr = q.from(User.class);
ParameterExpression<String> p = builder.parameter(String.class);
q.select(usr).where(builder.like(usr.get("name"),p))
.orderBy(builder.asc(usr.get("name")));
TypedQuery<User> query = getSession().createQuery(q);
query.setParameter(p, "%" + Main.filterName + "%");
List<User> list = query.getResultList();
Yes. Different manufacturer use different SDcard name like in Samsung Tab 3 its extsd, and other samsung devices use sdcard like this different manufacturer use different names.
I had the same requirement as you. so i have created a sample example for you from my project goto this link Android Directory chooser example which uses the androi-dirchooser library. This example detect the SDcard and list all the subfolders and it also detects if the device has morethan one SDcard.
Part of the code looks like this For full example goto the link Android Directory Chooser
/**
* Returns the path to internal storage ex:- /storage/emulated/0
*
* @return
*/
private String getInternalDirectoryPath() {
return Environment.getExternalStorageDirectory().getAbsolutePath();
}
/**
* Returns the SDcard storage path for samsung ex:- /storage/extSdCard
*
* @return
*/
private String getSDcardDirectoryPath() {
return System.getenv("SECONDARY_STORAGE");
}
mSdcardLayout.setOnClickListener(new OnClickListener() {
@Override
public void onClick(View view) {
String sdCardPath;
/***
* Null check because user may click on already selected buton before selecting the folder
* And mSelectedDir may contain some wrong path like when user confirm dialog and swith back again
*/
if (mSelectedDir != null && !mSelectedDir.getAbsolutePath().contains(System.getenv("SECONDARY_STORAGE"))) {
mCurrentInternalPath = mSelectedDir.getAbsolutePath();
} else {
mCurrentInternalPath = getInternalDirectoryPath();
}
if (mCurrentSDcardPath != null) {
sdCardPath = mCurrentSDcardPath;
} else {
sdCardPath = getSDcardDirectoryPath();
}
//When there is only one SDcard
if (sdCardPath != null) {
if (!sdCardPath.contains(":")) {
updateButtonColor(STORAGE_EXTERNAL);
File dir = new File(sdCardPath);
changeDirectory(dir);
} else if (sdCardPath.contains(":")) {
//Multiple Sdcards show root folder and remove the Internal storage from that.
updateButtonColor(STORAGE_EXTERNAL);
File dir = new File("/storage");
changeDirectory(dir);
}
} else {
//In some unknown scenario at least we can list the root folder
updateButtonColor(STORAGE_EXTERNAL);
File dir = new File("/storage");
changeDirectory(dir);
}
}
});
You can do union
or simple list comprehension
[A.add(_) for _ in B]
A would have all the elements of B
In order to be able to use decimal numbers in a range expression a cool way for doing it is the following: [x * 0.1 for x in range(0, 10)]
here is the solution
if (
document.getElementById('73536573').value != '' &&
document.getElementById('1081743273').value != '' &&
document.getElementById('357118391').value != '' &&
document.getElementById('1238321094').value != '' &&
document.getElementById('1118122010').value != ''
) {
code
}
I had a similar problem and solved it by combining the answers above
class FeedPost extends React.Component {
constructor(props) {
...
this.handleLayoutChange = this.handleLayoutChange.bind(this);
}
handleLayoutChange() {
this.feedPost.measure( (fx, fy, width, height, px, py) => {
console.log('Component width is: ' + width)
console.log('Component height is: ' + height)
console.log('X offset to page: ' + px)
console.log('Y offset to page: ' + py)
})
}
render {
return(
<View onLayout={(event) => {this.handleLayoutChange(event) }}
ref={view => { this.feedPost = view; }} >
...
Now I can see the position of my feedPost element in the logs:
08-24 11:15:36.838 3727 27838 I ReactNativeJS: Component width is: 156
08-24 11:15:36.838 3727 27838 I ReactNativeJS: Component height is: 206
08-24 11:15:36.838 3727 27838 I ReactNativeJS: X offset to page: 188
08-24 11:15:36.838 3727 27838 I ReactNativeJS: Y offset to page: 870
any
and ord
can be combined to serve the purpose as shown below.
>>> def hasDigits(s):
... return any( 48 <= ord(char) <= 57 for char in s)
...
>>> hasDigits('as1')
True
>>> hasDigits('as')
False
>>> hasDigits('as9')
True
>>> hasDigits('as_')
False
>>> hasDigits('1as')
True
>>>
A couple of points about this implementation.
any
is better because it works like short circuit expression in C Language and will return result as soon as it can be determined i.e. in case of string 'a1bbbbbbc' 'b's and 'c's won't even be compared.
ord
is better because it provides more flexibility like check numbers only between '0' and '5' or any other range. For example if you were to write a validator for Hexadecimal representation of numbers you would want string to have alphabets in the range 'A' to 'F' only.
With Spring, you can use this:
import org.springframework.core.io.ClassPathResource;
// Don't worry when use a not existed directory or a empty directory
// It can be used in @before
String dir = new ClassPathResource(".").getFile().getAbsolutePath()+"/"+"Your Path";
If you want to "encode" a full URL without having to think about manually splitting it into its different parts, I found the following worked in the same way that I used to use URI.encode
:
URI.parse(my_url).to_s
In Mono For Android....
try
{
System.IO.Stream StrIn = this.Assets.Open("MyMessage.txt");
string Content = string.Empty;
using (System.IO.StreamReader StrRead = new System.IO.StreamReader(StrIn))
{
try
{
Content = StrRead.ReadToEnd();
StrRead.Close();
}
catch (Exception ex) { csFunciones.MostarMsg(this, ex.Message); }
}
StrIn.Close();
StrIn = null;
}
catch (Exception ex) { csFunciones.MostarMsg(this, ex.Message); }
According to facebooks best practices it is like this (2016)
Use images that are at least 1200 x 630 pixels for the best display on high resolution devices. At the minimum, you should use images that are 600 x 315 pixels to display link page posts with larger images. Images can be up to 8MB in size.
If your image is smaller than 600 x 315 px, it will still display in the link page post, but the size will be much smaller.
We've also redesigned link page posts so that the aspect ratio for images is the same across desktop and mobile News Feed. Try to keep your images as close to 1.91:1 aspect ratio as possible to display the full image in News Feed without any cropping.
The minimum image size is 200 x 200 pixels. If you try to use an image smaller than this you will see an error in the Sharing Debugger.
There are two different image sizes to use for game apps:
Open Graph Stories Images appear in a square format. Image ratios for these apps should be 600 x 600 px. Non-open Graph Stories Images appear in a rectangular format. You should use a 1.91:1 image ratio, such as 600 x 314 px.
Stick with the present tense imperative because
For dict, just use
if key in dict
and don't use searching in key list
if key in dict.keys()
The latter will be more time-consuming.
Wrap an ArrayAdapter
around your List<ScanResult>
. Override getView()
to populate your rows with the ScanResult
data. Here is a free excerpt from one of my books that covers how to create custom ArrayAdapters
like this.
I think the SortedMap interface enforces what you ask for and TreeMap implements that.
http://java.sun.com/j2se/1.5.0/docs/api/java/util/SortedMap.html http://java.sun.com/j2se/1.5.0/docs/api/java/util/TreeMap.html
Node.js is based on the event loop programming model. The event loop runs in single thread and repeatedly waits for events and then runs any event handlers subscribed to those events. Events can be for example
All of this runs in single thread and no JavaScript code is ever executed in parallel. As long as these event handlers are small and wait for yet more events themselves everything works out nicely. This allows multiple request to be handled concurrently by a single Node.js process.
(There's a little bit magic under the hood as where the events originate. Some of it involve low level worker threads running in parallel.)
In this SQL case, there's a lot of things (events) happening between making the database query and getting its results in the callback. During that time the event loop keeps pumping life into the application and advancing other requests one tiny event at a time. Therefore multiple requests are being served concurrently.
According to: "Event loop from 10,000ft - core concept behind Node.js".
I would like to do this without attaching a class to every td
Personally, I would go with the the class-on-each-td/th/col approach. Then you can switch columns on and off using a single write to className on the container, assuming style rules like:
table.hide1 .col1 { display: none; }
table.hide2 .col2 { display: none; }
...
This is going to be faster than any JS loop approach; for really long tables it can make a significant difference to responsiveness.
If you can get away with not supporting IE6, you could use adjacency selectors to avoid having to add the class attributes to tds. Or alternatively, if your concern is making the markup cleaner, you could add them from JavaScript automatically in an initialisation step.
12 years later for anyone having similar problems.
try:
s.connect((address, '80'))
except:
alert('failed' + address, 'down')
doesn't work because the port '80' is a string. Your port needs to be int.
try:
s.connect((address, 80))
This should work. Not sure why even the best answer didnt see this.
Your question can be conveniently divided into several parts:
Does a VPN hide location? Yes, he is capable of this. This is not about GPS determining your location. If you try to change the region via VPN in an application that requires GPS access, nothing will work. However, sites define your region differently. They get an IP address and see what country or region it belongs to. If you can change your IP address, you can change your region. This is exactly what VPNs can do.
How to hide location on Android? There is nothing difficult in figuring out how to set up a VPN on Android, but a couple of nuances still need to be highlighted. Let's start with the fact that not all Android VPNs are created equal. For example, VeePN outperforms many other services in terms of efficiency in circumventing restrictions. It has 2500+ VPN servers and a powerful IP and DNS leak protection system.
You can easily change the location of your Android device by using a VPN. Follow these steps for any device model (Samsung, Sony, Huawei, etc.):
Download and install a trusted VPN.
Install the VPN on your Android device.
Open the application and connect to a server in a different country.
Your Android location will now be successfully changed!
Is it legal? Yes, changing your location on Android is legal. Likewise, you can change VPN settings in Microsoft Edge on your PC, and all this is within the law. VPN allows you to change your IP address, safeguarding your privacy and protecting your actual location from being exposed. However, VPN laws may vary from country to country. There are restrictions in some regions.
Brief summary: Yes, you can change your region on Android and a VPN is a necessary assistant for this. It's simple, safe and legal. Today, VPN is the best way to change the region and unblock sites with regional restrictions.
You can use wildcards with the del
command, and /S
to do it recursively.
del /S *.jpg
@BmyGuest asked why a downvoted answer (del /s c:\*.blaawbg
) was any different than my answer.
There's a huge difference between running del /S *.jpg
and del /S C:\*.jpg
. The first command is executed from the current location, whereas the second is executed on the whole drive.
In the scenario where you delete jpg
files using the second command, some applications might stop working, and you'll end up losing all your family pictures. This is utterly annoying, but your computer will still be able to run.
However, if you are working on some project, and want to delete all your dll
files in myProject\dll
, and run the following batch file:
@echo off
REM This short script will only remove dlls from my project... or will it?
cd \myProject\dll
del /S /Q C:\*.dll
Then you end up removing all dll
files form your C:\
drive. All of your applications stop working, your computer becomes useless, and at the next reboot you are teleported in the fourth dimension where you will be stuck for eternity.
The lesson here is not to run such command directly at the root of a drive (or in any other location that might be dangerous, such as %windir%
) if you can avoid it. Always run them as locally as possible.
The wildcard method will try to match all file names, in their 8.3 format, and their "long name" format. For example, *.dll
will match project.dll
and project.dllold
, which can be surprising. See this answer on SU for more detailed information.
function leapYear(year)
{
return ((year % 4 == 0) && (year % 100 != 0)) || (year % 400 == 0);
}
Content inside a <div class='html-content'>....</div>
can be downloaded as pdf with styles using jspdf & html2canvas.
You need to refer both js libraries,
<script type="text/javascript" src="https://cdnjs.cloudflare.com/ajax/libs/jspdf/1.5.3/jspdf.min.js"></script>
<script type="text/javascript" src="https://html2canvas.hertzen.com/dist/html2canvas.js"></script>
Then call below function,
//Create PDf from HTML...
function CreatePDFfromHTML() {
var HTML_Width = $(".html-content").width();
var HTML_Height = $(".html-content").height();
var top_left_margin = 15;
var PDF_Width = HTML_Width + (top_left_margin * 2);
var PDF_Height = (PDF_Width * 1.5) + (top_left_margin * 2);
var canvas_image_width = HTML_Width;
var canvas_image_height = HTML_Height;
var totalPDFPages = Math.ceil(HTML_Height / PDF_Height) - 1;
html2canvas($(".html-content")[0]).then(function (canvas) {
var imgData = canvas.toDataURL("image/jpeg", 1.0);
var pdf = new jsPDF('p', 'pt', [PDF_Width, PDF_Height]);
pdf.addImage(imgData, 'JPG', top_left_margin, top_left_margin, canvas_image_width, canvas_image_height);
for (var i = 1; i <= totalPDFPages; i++) {
pdf.addPage(PDF_Width, PDF_Height);
pdf.addImage(imgData, 'JPG', top_left_margin, -(PDF_Height*i)+(top_left_margin*4),canvas_image_width,canvas_image_height);
}
pdf.save("Your_PDF_Name.pdf");
$(".html-content").hide();
});
}
Ref: pdf genration from html canvas and jspdf.
May be this will help someone.
You could use use max
and min
with dict.get
:
maximum = max(mydict, key=mydict.get) # Just use 'min' instead of 'max' for minimum.
print(maximum, mydict[maximum])
# D 87
I would suggest reading some Microsoft documentation on what you can do with CSOM. This might be one example of what you are looking for, but there is a huge API documented in msdn.
// Starting with ClientContext, the constructor requires a URL to the
// server running SharePoint.
ClientContext context = new ClientContext("http://SiteUrl");
// Assume that the web has a list named "Announcements".
List announcementsList = context.Web.Lists.GetByTitle("Announcements");
// Assume there is a list item with ID=1.
ListItem listItem = announcementsList.Items.GetById(1);
// Write a new value to the Body field of the Announcement item.
listItem["Body"] = "This is my new value!!";
listItem.Update();
context.ExecuteQuery();
This is also an option:
x==2 && dosomething();
dosomething()
will only be called if x==2
is evaluated to true. This is called Short-circuiting.
It is not commonly used in cases like this and you really shouldn't write code like this. I encourage this simpler approach:
if(x==2) dosomething();
You should write readable code at all times; if you are worried about file size, just create a minified version of it with help of one of the many JS compressors. (e.g Google's Closure Compiler)
I assume you want to make modal use as much screen space as possible on phones. I've made a plugin to fix this UX problem of Bootstrap modals on mobile phones, you can check it out here - https://github.com/keaukraine/bootstrap-fs-modal
All you will need to do is to apply modal-fullscreen
class and it will act similar to native screens of iOS/Android.
A function inside of a function is commonly used for closures.
(There is a lot of contention over what exactly makes a closure a closure.)
Here's an example using the built-in sum()
. It defines start
once and uses it from then on:
def sum_partial(start):
def sum_start(iterable):
return sum(iterable, start)
return sum_start
In use:
>>> sum_with_1 = sum_partial(1)
>>> sum_with_3 = sum_partial(3)
>>>
>>> sum_with_1
<function sum_start at 0x7f3726e70b90>
>>> sum_with_3
<function sum_start at 0x7f3726e70c08>
>>> sum_with_1((1,2,3))
7
>>> sum_with_3((1,2,3))
9
Built-in python closure
functools.partial
is an example of a closure.
From the python docs, it's roughly equivalent to:
def partial(func, *args, **keywords):
def newfunc(*fargs, **fkeywords):
newkeywords = keywords.copy()
newkeywords.update(fkeywords)
return func(*(args + fargs), **newkeywords)
newfunc.func = func
newfunc.args = args
newfunc.keywords = keywords
return newfunc
(Kudos to @user225312 below for the answer. I find this example easier to figure out, and hopefully will help answer @mango's comment.)
Since PostgreSQL 9.1 there is the convenient FOREACH
:
DO
$do$
DECLARE
m varchar[];
arr varchar[] := array[['key1','val1'],['key2','val2']];
BEGIN
FOREACH m SLICE 1 IN ARRAY arr
LOOP
RAISE NOTICE 'another_func(%,%)',m[1], m[2];
END LOOP;
END
$do$
Solution for older versions:
DO
$do$
DECLARE
arr varchar[] := '{{key1,val1},{key2,val2}}';
BEGIN
FOR i IN array_lower(arr, 1) .. array_upper(arr, 1)
LOOP
RAISE NOTICE 'another_func(%,%)',arr[i][1], arr[i][2];
END LOOP;
END
$do$
Also, there is no difference between varchar[]
and varchar[][]
for the PostgreSQL type system. I explain in more detail here.
The DO
statement requires at least PostgreSQL 9.0, and LANGUAGE plpgsql
is the default (so you can omit the declaration).
This page seems to be a good central location for posting suggestions about the Fragment IllegalArgumentException. Here is one more thing you can try. This is what finally worked for me:
I had forgotten that I had a separate layout file for landscape orientation. After I added my FrameLayout container there, too, the fragment worked.
On a separate note, if you have already tried everything else suggested on this page (and the entire Internet, too) and have been pulling out your hair for hours, consider just dumping these annoying fragments and going back to a good old standard layout. (That's actually what I was in the process of doing when I finally discovered my problem.) You can still use the container concept. However, instead of filling it with a fragment, you can use the xml include
tag to fill it with the same layout that you would have used in your fragment. You could do something like this in your main layout:
<FrameLayout
android:id="@+id/container"
android:layout_width="match_parent"
android:layout_height="match_parent" >
<include layout="@layout/former_fragment_layout" />
</FrameLayout>
where former_fragment_layout
is the name of the xml layout file that you were trying to use in your fragment. See Re-using Layouts with include for more info.
There is no definitive reason why unreachable statements must be not be allowed; other languages allow them without problems. For your specific need, this is the usual trick:
if (true) return;
It looks nonsensical, anyone who reads the code will guess that it must have been done deliberately, not a careless mistake of leaving the rest of statements unreachable.
Java has a little bit support for "conditional compilation"
http://java.sun.com/docs/books/jls/third_edition/html/statements.html#14.21
if (false) { x=3; }
does not result in a compile-time error. An optimizing compiler may realize that the statement x=3; will never be executed and may choose to omit the code for that statement from the generated class file, but the statement x=3; is not regarded as "unreachable" in the technical sense specified here.
The rationale for this differing treatment is to allow programmers to define "flag variables" such as:
static final boolean DEBUG = false;
and then write code such as:
if (DEBUG) { x=3; }
The idea is that it should be possible to change the value of DEBUG from false to true or from true to false and then compile the code correctly with no other changes to the program text.
try
.insertAfter()
here
$(content).insertAfter('#bla');
Make use of Android Volly library as much as possible. It maps your JSON reponse in respective class objects. You can add getter setter for that response model objects. And then you can access these JSON values/parameter using .operator like normal JAVA Object. It makes response handling very simple.
Thanks to @tokeinizer_fsj that told me in a comment that I didn't get completely the meaning of the question (I thought that add meant just adding keys that eventually where different in the two dictinaries and, instead, i meant that the common key values should be summed). So I added that loop before the merging, so that the second dictionary contains the sum of the common keys. The last dictionary will be the one whose values will last in the new dictionary that is the result of the merging of the two, so I thing the problem is solved. The solution is valid from python 3.5 and following versions.
a = {
"a": 1,
"b": 2,
"c": 3
}
b = {
"a": 2,
"b": 3,
"d": 5
}
# Python 3.5
for key in b:
if key in a:
b[key] = b[key] + a[key]
c = {**a, **b}
print(c)
>>> c
{'a': 3, 'b': 5, 'c': 3, 'd': 5}
a = {'a': 1, 'b': 2, 'c': 3}
b = {'b': 3, 'c': 4, 'd': 5}
def mergsum(a, b):
for k in b:
if k in a:
b[k] = b[k] + a[k]
c = {**a, **b}
return c
print(mergsum(a, b))
The simplest solution is this:
$date = '07/28/2010';
$newdate = date('Y-m-d', strtotime($date));
For me, this js reproduces the same problem that happens with Paola
My solution:
$(document.body).tooltip({selector: '[title]'})
.on('click mouseenter mouseleave','[title]', function(ev) {
$(this).tooltip('mouseenter' === ev.type? 'show': 'hide');
});
You can add @RequestMapping
like so:
@RequestMapping("/userGrid")
public @ResponseBody GridModel getUsersForGrid(
@RequestParam("_search") String search,
@RequestParam String nd,
@RequestParam int rows,
@RequestParam int page,
@RequestParam String sidx)
@RequestParam String sord) {
Here you are. An answer that shows yet another way to solve the problem:
// For the sake of simplicity, here is a complete function:
function truncate(numToBeTruncated, numOfDecimals) {
var theNumber = numToBeTruncated.toString();
var pointIndex = theNumber.indexOf('.');
return +(theNumber.slice(0, pointIndex > -1 ? ++numOfDecimals + pointIndex : undefined));
}
Note the use of + before the final expression. That is to convert our truncated, sliced string back to number type.
Hope it helps!
They are called ifdef or include guards.
If writing a small program it might seems that it is not needed, but as the project grows you could intentionally or unintentionally include one file many times, which can result in compilation warning like variable already declared.
#ifndef checks whether HEADERFILE_H is not declared.
#define will declare HEADERFILE_H once #ifndef generates true.
#endif is to know the scope of #ifndef i.e end of #ifndef
If it is not declared which means #ifndef generates true then only the part between #ifndef and #endif executed otherwise not. This will prevent from again declaring the identifiers, enums, structure, etc...
I think you cant remove column names, only reset them by range
with shape
:
print df.shape[1]
2
print range(df.shape[1])
[0, 1]
df.columns = range(df.shape[1])
print df
0 1
0 23 12
1 21 44
2 98 21
This is same as using to_csv
and read_csv
:
print df.to_csv(header=None,index=False)
23,12
21,44
98,21
print pd.read_csv(io.StringIO(u""+df.to_csv(header=None,index=False)), header=None)
0 1
0 23 12
1 21 44
2 98 21
Next solution with skiprows
:
print df.to_csv(index=False)
A,B
23,12
21,44
98,21
print pd.read_csv(io.StringIO(u""+df.to_csv(index=False)), header=None, skiprows=1)
0 1
0 23 12
1 21 44
2 98 21
From the play console, you just need to type run 8888, if you want to run it from port 8888.
play> run 8888
flatMap transform the items emitted by an Observable into Observables, then flatten the emissions from those into a single Observable
I am not stupid but had to read this 10 times and still don't get it. When I read the code snippet :
[1,2,3].map(x => [x, x * 10])
// [[1, 10], [2, 20], [3, 30]]
[1,2,3].flatMap(x => [x, x * 10])
// [1, 10, 2, 20, 3, 30]
then I could understand whats happening, it does two things :
flatMap :
- map: transform *) emitted items into Observables.
- flat: then merge those Observables as one Observable.
*) The transform word says the item can be transformed in something else.
Then the merge operator becomes clear to, it does the flattening without the mapping. Why not calling it mergeMap? It seems there is also an Alias mergeMap with that name for flatMap.
As specified here You can update the index:
git update-index --assume-unchanged /path/to/file
By doing this, the files will not show up in git status
or git diff
.
To begin tracking the files again you can run:
git update-index --no-assume-unchanged /path/to/file
Yes. 'Z' stands for Zulu time, which is also GMT and UTC.
From http://en.wikipedia.org/wiki/Coordinated_Universal_Time:
The UTC time zone is sometimes denoted by the letter Z—a reference to the equivalent nautical time zone (GMT), which has been denoted by a Z since about 1950. The letter also refers to the "zone description" of zero hours, which has been used since 1920 (see time zone history). Since the NATO phonetic alphabet and amateur radio word for Z is "Zulu", UTC is sometimes known as Zulu time.
Technically, because the definition of nautical time zones is based on longitudinal position, the Z time is not exactly identical to the actual GMT time 'zone'. However, since it is primarily used as a reference time, it doesn't matter what area of Earth it applies to as long as everyone uses the same reference.
From wikipedia again, http://en.wikipedia.org/wiki/Nautical_time:
Around 1950, a letter suffix was added to the zone description, assigning Z to the zero zone, and A–M (except J) to the east and N–Y to the west (J may be assigned to local time in non-nautical applications; zones M and Y have the same clock time but differ by 24 hours: a full day). These were to be vocalized using a phonetic alphabet which pronounces the letter Z as Zulu, leading sometimes to the use of the term "Zulu Time". The Greenwich time zone runs from 7.5°W to 7.5°E longitude, while zone A runs from 7.5°E to 22.5°E longitude, etc.
Simply use the administrative shares to copy files between systems. It's much easier this way.
Copy-Item -Path \\serverb\c$\programs\temp\test.txt -Destination \\servera\c$\programs\temp\test.txt;
By using UNC paths instead of local filesystem paths, you help to ensure that your script is executable from any client system with access to those UNC paths. If you use local filesystem paths, then you are cornering yourself into running the script on a specific computer.
This only works when a PowerShell session runs under the user who has rights to both administrative shares.
I suggest to use regular network share on server B with read-only access to everyone and simply call (from Server A):
Copy-Item -Path "\\\ServerB\SharedPathToSourceFile" -Destination "$Env:USERPROFILE" -Force -PassThru -Verbose
If you want to avoid including the full path to awk, you need to update your PATH variable to include the path to the directory where awk is located, then you can just type
awk
to run your programs.
Go to Control Panel->System->Advanced and set your PATH environment variable to include "C:\Program Files (x86)\GnuWin32\bin" at the end (separated by a semi-colon) from previous entry.
This worked in my case: Use %USERPROFILE% instead of giving path .keystore file stored in this path automatically C:Users/user name/.android:
keytool -list -v -keystore "%USERPROFILE%\.android\debug.keystore" -alias androiddebugkey -storepass android -keypass android
I am not for throwing Exceptions in the constructor since I am considering this as non-clean. There are several reasons for my opinion.
As Richard mentioned you cannot initialize an instance in an easy manner. Especially in tests it is really annoying to build a test-wide object only by surrounding it in a try-catch during initialization.
Constructors should be logic-free. There is no reason at all to encapsulate logic in a constructor, since you are always aiming for the Separation of Concerns and Single Responsibility Principle. Since the concern of the constructor is to "construct an object" it should not encapsulate any exception handling if following this approach.
It smells like bad design. Imho if I am forced to do exception handling in the constructor I am at first asking myself if I have any design frauds in my class. It is necessary sometimes, but then I outsource this to a builder or factory to keep the constructor as simple as possible.
So if it is necessary to do some exception handling in the constructor, why would you not outsource this logic to a Builder of Factory? It might be a few more lines of code but gives you the freedom to implement a far more robust and well suited exception handling since you can outsource the logic for the exception handling even more and are not sticked to the constructor, which will encapsulate too much logic. And the client does not need to know anything about your constructing logic if you delegate the exception handling properly.
You can use this class:
using System.Collections.Specialized;
class Post_File
{
public static void HttpUploadFile(string url, string file, string paramName, string contentType, NameValueCollection nvc)
{
string boundary = "---------------------------" + DateTime.Now.Ticks.ToString("x");
byte[] boundarybytes = System.Text.Encoding.ASCII.GetBytes("\r\n--" + boundary + "\r\n");
byte[] boundarybytesF = System.Text.Encoding.ASCII.GetBytes("--" + boundary + "\r\n"); // the first time it itereates, you need to make sure it doesn't put too many new paragraphs down or it completely messes up poor webbrick.
HttpWebRequest wr = (HttpWebRequest)WebRequest.Create(url);
wr.Method = "POST";
wr.KeepAlive = true;
wr.Credentials = System.Net.CredentialCache.DefaultCredentials;
wr.Accept = "text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8";
var nvc2 = new NameValueCollection();
nvc2.Add("Accepts-Language", "en-us,en;q=0.5");
wr.Headers.Add(nvc2);
wr.ContentType = "multipart/form-data; boundary=" + boundary;
Stream rs = wr.GetRequestStream();
bool firstLoop = true;
string formdataTemplate = "Content-Disposition: form-data; name=\"{0}\"\r\n\r\n{1}";
foreach (string key in nvc.Keys)
{
if (firstLoop)
{
rs.Write(boundarybytesF, 0, boundarybytesF.Length);
firstLoop = false;
}
else
{
rs.Write(boundarybytes, 0, boundarybytes.Length);
}
string formitem = string.Format(formdataTemplate, key, nvc[key]);
byte[] formitembytes = System.Text.Encoding.UTF8.GetBytes(formitem);
rs.Write(formitembytes, 0, formitembytes.Length);
}
rs.Write(boundarybytes, 0, boundarybytes.Length);
string headerTemplate = "Content-Disposition: form-data; name=\"{0}\"; filename=\"{1}\"\r\nContent-Type: {2}\r\n\r\n";
string header = string.Format(headerTemplate, paramName, new FileInfo(file).Name, contentType);
byte[] headerbytes = System.Text.Encoding.UTF8.GetBytes(header);
rs.Write(headerbytes, 0, headerbytes.Length);
FileStream fileStream = new FileStream(file, FileMode.Open, FileAccess.Read);
byte[] buffer = new byte[4096];
int bytesRead = 0;
while ((bytesRead = fileStream.Read(buffer, 0, buffer.Length)) != 0)
{
rs.Write(buffer, 0, bytesRead);
}
fileStream.Close();
byte[] trailer = System.Text.Encoding.ASCII.GetBytes("\r\n--" + boundary + "--\r\n");
rs.Write(trailer, 0, trailer.Length);
rs.Close();
WebResponse wresp = null;
try
{
wresp = wr.GetResponse();
Stream stream2 = wresp.GetResponseStream();
StreamReader reader2 = new StreamReader(stream2);
}
catch (Exception ex)
{
if (wresp != null)
{
wresp.Close();
wresp = null;
}
}
finally
{
wr = null;
}
}
}
use it:
NameValueCollection nvc = new NameValueCollection();
//nvc.Add("id", "TTR");
nvc.Add("table_name", "uploadfile");
nvc.Add("commit", "uploadfile");
Post_File.HttpUploadFile("http://example/upload_file.php", @"C:\user\yourfile.docx", "uploadfile", "application/vnd.ms-excel", nvc);
example server upload_file.php
:
m('File upload '.(@copy($_FILES['uploadfile']['tmp_name'],getcwd().'\\'.'/'.$_FILES['uploadfile']['name']) ? 'success' : 'failed'));
function m($msg) {
echo '<div style="background:#f1f1f1;border:1px solid #ddd;padding:15px;font:14px;text-align:center;font-weight:bold;">';
echo $msg;
echo '</div>';
}
Layout Weight works like a ratio. For example, if there is a vertical layout and there are two items(such as buttons or textviews), one having layout weight 2 and the other having layout weight 3 respectively. Then the 1st item will occupy 2 out of 5 portion of the screen/layout and the other one 3 out of 5 portion. Here 5 is the weight sum. i.e. Weight sum divides the whole layout into defined portions. And Layout Weight defines how much portion does the particular item occupies out of the total Weight Sum pre-defined. Weight sum can be manually declared as well. Buttons, textviews, edittexts etc all are organized using weightsum and layout weight when using linear layouts for UI design.
You can follow this tutorial on how to use Google Maps for testing on localhost.
- Click this link and follow the process (create new project, API key > Browser key, register 'localhost' domain): https://console.developers.google.com//flows/enableapi?apiid=maps_backend&keyType=CLIENT_SIDE&reusekey=true
- Generate the key
- Deploy Google Maps widget as described here: http://www2.microstrategy.com/producthelp/10/GISHelp/Lang_1033/GIS_Integration.htm
- Add your Google Maps API key to googleConfig.xml (as desribed in the previous link) ENTER_YOUR_KEY_HERE
- Restart Web Server
Check these related SO threads:
Hope this helps!
When configuring your error log file in php.ini, you can use an absolute path or a relative path. A relative path will be resolved based on the location of the generating script, and you'll get a log file in each directory you have scripts in. If you want all your error messages to go to the same file, use an absolute path to the file.
See more here: http://www.php.net/manual/en/ref.errorfunc.php#53025
An
in
statement will be parsed identically tofield=val1 or field=val2 or field=val3
. Putting a null in there will boil down tofield=null
which won't work.
I would do this for clairity
SELECT *
FROM tbl_name
WHERE
(id_field IN ('value1', 'value2', 'value3') OR id_field IS NULL)
This comes a little close.
.box
{
-webkit-box-shadow: inset -1px 10px 5px -3px #000000;
box-shadow: inset -1px 10px 5px -3px #000000;
}
Its given on OFFICIAL MYSQL website.
SET GLOBAL general_log = 'ON';
You can also use custom path:
[mysqld]
# Set Slow Query Log
long_query_time = 1
slow_query_log = 1
slow_query_log_file = "C:/slowquery.log"
#Set General Log
log = "C:/genquery.log"
I got this error while connecting to Amazon RDS. I checked the server status 50% of CPU usage while it was a development server and no one is using it.
It was working before, and nothing in the connection configuration has changed. Rebooting the server fixed the issue for me.
You can't "skip" based on the size of the collection, because it will not take the query conditions into account.
The correct solution is to sort from the desired end-point, limit the size of the result set, then adjust the order of the results if necessary.
Here is an example, based on real-world code.
var query = collection.find( { conditions } ).sort({$natural : -1}).limit(N);
query.exec(function(err, results) {
if (err) {
}
else if (results.length == 0) {
}
else {
results.reverse(); // put the results into the desired order
results.forEach(function(result) {
// do something with each result
});
}
});
I wrote the following jquery plugin for html loading function: http://webtech-training.blogspot.in/2010/10/dyamic-html-loader.html
I assume your questions is with regards to Java code. If that's the case, you don't actually need any extra plugins to accomplish 1). You can just go to Preferences -> Java -> Editor -> Save Actions and configure it to remove trailing whitespace.
By the sounds of it you also want to make this a team-wide setting, right? To make life easier and avoid having to remember setting it up every time you have a new workspace you can set the save action as a project specific preference that gets stored into your SCM along with the code.
In order to do that right-click on your project and go to Properties -> Java Editor -> Save Actions. From there you can enable project specific settings and configure it to remove trailing whitespace (among other useful things).
NB: This option has been removed in Eclipse Kepler (4.3) and following releases.
NB #2: The option seems to be back in Eclipse Luna - Luna Service Release 1a (4.4.1)
??!
is a trigraph that translates to |
. So it says:
!ErrorHasOccured() || HandleError();
which, due to short circuiting, is equivalent to:
if (ErrorHasOccured())
HandleError();
Guru of the Week (deals with C++ but relevant here), where I picked this up.
Possible origin of trigraphs or as @DwB points out in the comments it's more likely due to EBCDIC being difficult (again). This discussion on the IBM developerworks board seems to support that theory.
From ISO/IEC 9899:1999 §5.2.1.1, footnote 12 (h/t @Random832):
The trigraph sequences enable the input of characters that are not defined in the Invariant Code Set as described in ISO/IEC 646, which is a subset of the seven-bit US ASCII code set.
I recommend to read this entire article, but here is the most relevant section that addresses your question:
Rollback and Error Handling is Difficult
In my articles on Error and Transaction Handling in SQL Server, I suggest that > you should always have an error handler like
BEGIN CATCH
IF @@trancount > 0 ROLLBACK TRANSACTION
EXEC error_handler_sp
RETURN 55555
END CATCH
The idea is that even if you do not start a transaction in the procedure, you should always include a ROLLBACK, because if you were not able to fulfil your contract, the transaction is not valid.
Unfortunately, this does not work well with INSERT-EXEC. If the called procedure executes a ROLLBACK statement, this happens:
Msg 3915, Level 16, State 0, Procedure SalesByStore, Line 9 Cannot use the ROLLBACK statement within an INSERT-EXEC statement.
The execution of the stored procedure is aborted. If there is no CATCH handler anywhere, the entire batch is aborted, and the transaction is rolled back. If the INSERT-EXEC is inside TRY-CATCH, that CATCH handler will fire, but the transaction is doomed, that is, you must roll it back. The net effect is that the rollback is achieved as requested, but the original error message that triggered the rollback is lost. That may seem like a small thing, but it makes troubleshooting much more difficult, because when you see this error, all you know is that something went wrong, but you don't know what.
For general information: by default to ssh-connect you may simply use
user: vagrant
password: vagrant
https://www.vagrantup.com/docs/boxes/base.html#quot-vagrant-quot-user
First, try: to see what vagrant insecure_private_key
is in your machine config
$ vagrant ssh-config
Example:
$ vagrant ssh-config
Host default
HostName 127.0.0.1
User vagrant
Port 2222
UserKnownHostsFile /dev/null
StrictHostKeyChecking no
PasswordAuthentication no
IdentityFile C:/Users/konst/.vagrant.d/insecure_private_key
IdentitiesOnly yes
LogLevel FATAL
http://docs.vagrantup.com/v2/cli/ssh_config.html
Second, do:
Change the contents of file insecure_private_key
with the contents of your personal system private key
Or use: Add it to the Vagrantfile:
Vagrant.configure("2") do |config|
config.ssh.private_key_path = "~/.ssh/id_rsa"
config.ssh.forward_agent = true
end
config.ssh.private_key_path
is your local private keyssh-add -L
. If it's not listed, add it with ssh-add ~/.ssh/id_rsa
~/.ssh/authorized_keys
on the Vagrant VM. You can do it by copy-and-pasting or using a tool like ssh-copy-id (user: root
password: vagrant
port: 2222) ssh-copy-id '-p 2222 [email protected]'
If still does not work try this:
Remove insecure_private_key
file from c:\Users\USERNAME\.vagrant.d\insecure_private_key
Run vagrant up
(vagrant will be generate a new insecure_private_key
file)
In other cases, it is helpful to just set forward_agent in Vagrantfile
:
Vagrant::Config.run do |config|
config.ssh.forward_agent = true
end
Useful:
Configurating git may be with git-scm.com
After setup this program and creating personal system private key will be in yours profile path: c:\users\USERNAME\.ssh\id_rsa.pub
PS: Finally - suggest you look at Ubuntu on Windows 10
perl -lne 'print if((/abc/../mno/) && !(/abc/||/mno/))' your_file
As posted in my update above, a potential solution would be to use Declaration Merging as suggested by @Tyler-sebastion. I was able to define two additional interfaces and add the index property on the EventTarget
in this way.
interface KonvaTextEventTarget extends EventTarget {
index: number
}
interface KonvaMouseEvent extends React.MouseEvent<HTMLElement> {
target: KonvaTextEventTarget
}
I then can declare the event as KonvaMouseEvent
in my onclick MouseEventHandler function.
onClick={(event: KonvaMouseEvent) => {
makeMove(ownMark, event.target.index)
}}
I'm still not 100% if this is the best approach as it feels a bit Kludgy and overly verbose just to get past the tslint error.
Try this:
import time
t_end = time.time() + 60 * 15
while time.time() < t_end:
# do whatever you do
This will run for 15 min x 60 s = 900 seconds.
Function time.time
returns the current time in seconds since 1st Jan 1970. The value is in floating point, so you can even use it with sub-second precision. In the beginning the value t_end is calculated to be "now" + 15 minutes. The loop will run until the current time exceeds this preset ending time.
This worked for me!
App/build.gradle
//Add this....Keep both version same
compileOptions {
sourceCompatibility JavaVersion.VERSION_1_8
targetCompatibility JavaVersion.VERSION_1_8
}
DEMO
In the content area you can provide whatever you want to display in it.
.black_overlay {_x000D_
display: none;_x000D_
position: absolute;_x000D_
top: 0%;_x000D_
left: 0%;_x000D_
width: 100%;_x000D_
height: 100%;_x000D_
background-color: black;_x000D_
z-index: 1001;_x000D_
-moz-opacity: 0.8;_x000D_
opacity: .80;_x000D_
filter: alpha(opacity=80);_x000D_
}_x000D_
.white_content {_x000D_
display: none;_x000D_
position: absolute;_x000D_
top: 25%;_x000D_
left: 25%;_x000D_
width: 50%;_x000D_
height: 50%;_x000D_
padding: 16px;_x000D_
border: 16px solid orange;_x000D_
background-color: white;_x000D_
z-index: 1002;_x000D_
overflow: auto;_x000D_
}
_x000D_
<html>_x000D_
_x000D_
<head>_x000D_
<title>LIGHTBOX EXAMPLE</title>_x000D_
</head>_x000D_
_x000D_
<body>_x000D_
<p>This is the main content. To display a lightbox click <a href="javascript:void(0)" onclick="document.getElementById('light').style.display='block';document.getElementById('fade').style.display='block'">here</a>_x000D_
</p>_x000D_
<div id="light" class="white_content">This is the lightbox content. <a href="javascript:void(0)" onclick="document.getElementById('light').style.display='none';document.getElementById('fade').style.display='none'">Close</a>_x000D_
</div>_x000D_
<div id="fade" class="black_overlay"></div>_x000D_
</body>_x000D_
_x000D_
</html>
_x000D_
I wrote this generic type converter. It works with Nullable and standard values, converting between all convertible types - not just string. It handles all sorts of scenarios that you'd expect (default values, null values, other values, etc...)
I've been using this for about a year in dozens of production programs, so it should be pretty solid.
public static T To<T>(this IConvertible obj)
{
Type t = typeof(T);
if (t.IsGenericType
&& (t.GetGenericTypeDefinition() == typeof(Nullable<>)))
{
if (obj == null)
{
return (T)(object)null;
}
else
{
return (T)Convert.ChangeType(obj, Nullable.GetUnderlyingType(t));
}
}
else
{
return (T)Convert.ChangeType(obj, t);
}
}
public static T ToOrDefault<T>
(this IConvertible obj)
{
try
{
return To<T>(obj);
}
catch
{
return default(T);
}
}
public static bool ToOrDefault<T>
(this IConvertible obj,
out T newObj)
{
try
{
newObj = To<T>(obj);
return true;
}
catch
{
newObj = default(T);
return false;
}
}
public static T ToOrOther<T>
(this IConvertible obj,
T other)
{
try
{
return To<T>(obj);
}
catch
{
return other;
}
}
public static bool ToOrOther<T>
(this IConvertible obj,
out T newObj,
T other)
{
try
{
newObj = To<T>(obj);
return true;
}
catch
{
newObj = other;
return false;
}
}
public static T ToOrNull<T>
(this IConvertible obj)
where T : class
{
try
{
return To<T>(obj);
}
catch
{
return null;
}
}
public static bool ToOrNull<T>
(this IConvertible obj,
out T newObj)
where T : class
{
try
{
newObj = To<T>(obj);
return true;
}
catch
{
newObj = null;
return false;
}
}
== operator compares two object references to check whether they refer to same instance. This also, will return true on successful match.for example
public class Example{
public static void main(String[] args){
String s1 = "Java";
String s2 = "Java";
String s3 = new string ("Java");
test(Sl == s2) //true
test(s1 == s3) //false
}}
above example == is a reference comparison i.e. both objects point to the same memory location
String equals() is evaluates to the comparison of values in the objects.
public class EqualsExample1{
public static void main(String args[]){
String s = "Hell";
String s1 =new string( "Hello");
String s2 =new string( "Hello");
s1.equals(s2); //true
s.equals(s1) ; //false
}}
above example It compares the content of the strings. It will return true if string matches, else returns false.
I had a stackoverflow today and i read some of your posts and decided to help out the Garbage Collecter.
I used to have a near infinite loop like this:
class Foo
{
public Foo()
{
Go();
}
public void Go()
{
for (float i = float.MinValue; i < float.MaxValue; i+= 0.000000000000001f)
{
byte[] b = new byte[1]; // Causes stackoverflow
}
}
}
Instead let the resource run out of scope like this:
class Foo
{
public Foo()
{
GoHelper();
}
public void GoHelper()
{
for (float i = float.MinValue; i < float.MaxValue; i+= 0.000000000000001f)
{
Go();
}
}
public void Go()
{
byte[] b = new byte[1]; // Will get cleaned by GC
} // right now
}
It worked for me, hope it helps someone.
If you dont want to merge the changes and still want to update your local then run:
git reset --hard HEAD
This will reset your local with HEAD and then pull your remote using git pull.
If you've already committed your merge locally (but haven't pushed to remote yet), and want to revert it as well:
git reset --hard HEAD~1
(for those who are looking for php-curl answer)
$service_url = 'https://example.com/something/something.json';
$curl = curl_init($service_url);
curl_setopt($curl, CURLOPT_HTTPAUTH, CURLAUTH_BASIC);
curl_setopt($curl, CURLOPT_USERPWD, "username:password"); //Your credentials goes here
curl_setopt($curl, CURLOPT_RETURNTRANSFER, true);
curl_setopt($curl, CURLOPT_POST, true);
curl_setopt($curl, CURLOPT_POSTFIELDS, $curl_post_data);
curl_setopt($curl, CURLOPT_SSL_VERIFYPEER, false); //IMP if the url has https and you don't want to verify source certificate
$curl_response = curl_exec($curl);
$response = json_decode($curl_response);
curl_close($curl);
var_dump($response);
Happens when php extensions are not being used by default. In your php.ini file, change
;extension=php_mysql.dll
to extension=php_mysql.dll
.
**If this error logs, then add path to this dll file, eg
extension=C:\Php\php-???-nts-Win32-VC11-x86\ext\php_mysql.dll
Do same for php_mysqli.dll
and php_pdo_mysql.dll
. Save and run your code again.
Try this code
SELECT REPLACE([Column], char(9), '') From [dbo.Table]
char(9) is the TAB character