You could use a number of queries that use Take
and Skip
, but that would add too many iterations on the original list, I believe.
Rather, I think you should create an iterator of your own, like so:
public static IEnumerable<IEnumerable<T>> GetEnumerableOfEnumerables<T>(
IEnumerable<T> enumerable, int groupSize)
{
// The list to return.
List<T> list = new List<T>(groupSize);
// Cycle through all of the items.
foreach (T item in enumerable)
{
// Add the item.
list.Add(item);
// If the list has the number of elements, return that.
if (list.Count == groupSize)
{
// Return the list.
yield return list;
// Set the list to a new list.
list = new List<T>(groupSize);
}
}
// Return the remainder if there is any,
if (list.Count != 0)
{
// Return the list.
yield return list;
}
}
You can then call this and it is LINQ enabled so you can perform other operations on the resulting sequences.
In light of Sam's answer, I felt there was an easier way to do this without:
That said, here's another pass, which I've codified in an extension method to IEnumerable<T>
called Chunk
:
public static IEnumerable<IEnumerable<T>> Chunk<T>(this IEnumerable<T> source,
int chunkSize)
{
// Validate parameters.
if (source == null) throw new ArgumentNullException(nameof(source));
if (chunkSize <= 0) throw new ArgumentOutOfRangeException(nameof(chunkSize),
"The chunkSize parameter must be a positive value.");
// Call the internal implementation.
return source.ChunkInternal(chunkSize);
}
Nothing surprising up there, just basic error checking.
Moving on to ChunkInternal
:
private static IEnumerable<IEnumerable<T>> ChunkInternal<T>(
this IEnumerable<T> source, int chunkSize)
{
// Validate parameters.
Debug.Assert(source != null);
Debug.Assert(chunkSize > 0);
// Get the enumerator. Dispose of when done.
using (IEnumerator<T> enumerator = source.GetEnumerator())
do
{
// Move to the next element. If there's nothing left
// then get out.
if (!enumerator.MoveNext()) yield break;
// Return the chunked sequence.
yield return ChunkSequence(enumerator, chunkSize);
} while (true);
}
Basically, it gets the IEnumerator<T>
and manually iterates through each item. It checks to see if there any items currently to be enumerated. After each chunk is enumerated through, if there aren't any items left, it breaks out.
Once it detects there are items in the sequence, it delegates the responsibility for the inner IEnumerable<T>
implementation to ChunkSequence
:
private static IEnumerable<T> ChunkSequence<T>(IEnumerator<T> enumerator,
int chunkSize)
{
// Validate parameters.
Debug.Assert(enumerator != null);
Debug.Assert(chunkSize > 0);
// The count.
int count = 0;
// There is at least one item. Yield and then continue.
do
{
// Yield the item.
yield return enumerator.Current;
} while (++count < chunkSize && enumerator.MoveNext());
}
Since MoveNext
was already called on the IEnumerator<T>
passed to ChunkSequence
, it yields the item returned by Current
and then increments the count, making sure never to return more than chunkSize
items and moving to the next item in the sequence after every iteration (but short-circuited if the number of items yielded exceeds the chunk size).
If there are no items left, then the InternalChunk
method will make another pass in the outer loop, but when MoveNext
is called a second time, it will still return false, as per the documentation (emphasis mine):
If MoveNext passes the end of the collection, the enumerator is positioned after the last element in the collection and MoveNext returns false. When the enumerator is at this position, subsequent calls to MoveNext also return false until Reset is called.
At this point, the loop will break, and the sequence of sequences will terminate.
This is a simple test:
static void Main()
{
string s = "agewpsqfxyimc";
int count = 0;
// Group by three.
foreach (IEnumerable<char> g in s.Chunk(3))
{
// Print out the group.
Console.Write("Group: {0} - ", ++count);
// Print the items.
foreach (char c in g)
{
// Print the item.
Console.Write(c + ", ");
}
// Finish the line.
Console.WriteLine();
}
}
Output:
Group: 1 - a, g, e,
Group: 2 - w, p, s,
Group: 3 - q, f, x,
Group: 4 - y, i, m,
Group: 5 - c,
An important note, this will not work if you don't drain the entire child sequence or break at any point in the parent sequence. This is an important caveat, but if your use case is that you will consume every element of the sequence of sequences, then this will work for you.
Additionally, it will do strange things if you play with the order, just as Sam's did at one point.
I think you are looking for UPDATE and not insert?
UPDATE `users`
SET `username` = 'Jack', `password` = '123'
WHERE `id` = 1
In addition to @Greg Bacon answer, in case binary files were added to the index and were part of the stash using
git stash show -p | git apply --reverse
may result in
error: cannot apply binary patch to '<YOUR_NEW_FILE>' without full index line
error: <YOUR_NEW_FILE>: patch does not apply
Adding --binary
resolves the issue, but unfortunately haven't figured out why yet.
git stash show -p --binary | git apply --reverse
As I parse it, those words are wrong. It should read "If the function modifies that value, the modifications appear also within the scope of the calling function when passing by reference, but not when passing by value."
Another way -
Suppose myResult is the dataFrame that contains your data in the form of 1 col and 23 rows
# label your columns by passing a list of names
myResult.columns = ['firstCol']
# fetch the column in this way, which will return you a series
myResult = myResult['firstCol']
print(type(myResult))
In similar fashion, you can get series from Dataframe with multiple columns.
However once started I don't know how to access it to stop it
You can write a simple stop script that greps for your java process, extracts the PID and calls kill on it. It's not fancy, but it's straight forward. Something like that may be of help as a start:
#!/bin/bash
PID = ps ax | grep "name of your app" | cut -d ' ' -f 1
kill $PID
In python3 the following works:
>>> v=10.4
>>> print('% 6.2f' % v)
10.40
>>> print('% 12.1f' % v)
10.4
>>> print('%012.1f' % v)
0000000010.4
For those working in Anaconda in Windows, I had the same problem. Notepad++ help me to solve it.
Open the file in Notepad++. In the bottom right it will tell you the current file encoding. In the top menu, next to "View" locate "Encoding". In "Encoding" go to "character sets" and there with patiente look for the enconding that you need. In my case the encoding "Windows-1252" was found under "Western European"
Use this:
myFunction.bookName = 'mybook';
myFunction.bookdesc = 'new';
Or, if you are using jQuery:
$(myFunction).extend({
bookName:'mybook',
bookdesc: 'new'
});
The push
method is wrong because it belongs to the Array.prototype
object.
To create a named object, try this:
var myObj = function(){
this.property = 'foo';
this.bar = function(){
}
}
myObj.prototype.objProp = true;
var newObj = new myObj();
I've just found the project Eclim linked in another question. This looks quite promising, at least for Java integration.
According to http://docs.python.org/dev/py3k/library/stdtypes.html#dictionary-view-objects , the keys(), values() and items() methods of a dict will return corresponding iterators whose orders correspond. However, I am unable to find a reference to the official documentation for python 2.x for the same thing.
So as far as I can tell, the answer is yes, but only in python 3.0+
The ClassPathXmlApplicationContext
isn't going to find the applicationContext.xml
in your WEB-INF
folder, it's not on the classpath. You could copy the application context into your classpath (could put it under src/test/resources
and let Maven copy it over) when running the tests.
In a regular expression, you can "capture" parts of the matched string with (brackets)
; in this case, you are capturing the (^|_)
and ([a-z])
parts of the match. These are numbered starting at 1, so you have back-references 1 and 2. Match 0 is the whole matched string.
The /e
modifier takes a replacement string, and substitutes backslash followed by a number (e.g. \1
) with the appropriate back-reference - but because you're inside a string, you need to escape the backslash, so you get '\\1'
. It then (effectively) runs eval
to run the resulting string as though it was PHP code (which is why it's being deprecated, because it's easy to use eval
in an insecure way).
The preg_replace_callback
function instead takes a callback function and passes it an array containing the matched back-references. So where you would have written '\\1'
, you instead access element 1 of that parameter - e.g. if you have an anonymous function of the form function($matches) { ... }
, the first back-reference is $matches[1]
inside that function.
So a /e
argument of
'do_stuff(\\1) . "and" . do_stuff(\\2)'
could become a callback of
function($m) { return do_stuff($m[1]) . "and" . do_stuff($m[2]); }
Or in your case
'strtoupper("\\2")'
could become
function($m) { return strtoupper($m[2]); }
Note that $m
and $matches
are not magic names, they're just the parameter name I gave when declaring my callback functions. Also, you don't have to pass an anonymous function, it could be a function name as a string, or something of the form array($object, $method)
, as with any callback in PHP, e.g.
function stuffy_callback($things) {
return do_stuff($things[1]) . "and" . do_stuff($things[2]);
}
$foo = preg_replace_callback('/([a-z]+) and ([a-z]+)/', 'stuffy_callback', 'fish and chips');
As with any function, you can't access variables outside your callback (from the surrounding scope) by default. When using an anonymous function, you can use the use
keyword to import the variables you need to access, as discussed in the PHP manual. e.g. if the old argument was
'do_stuff(\\1, $foo)'
then the new callback might look like
function($m) use ($foo) { return do_stuff($m[1], $foo); }
preg_replace_callback
is instead of the /e
modifier on the regex, so you need to remove that flag from your "pattern" argument. So a pattern like /blah(.*)blah/mei
would become /blah(.*)blah/mi
./e
modifier used a variant of addslashes()
internally on the arguments, so some replacements used stripslashes()
to remove it; in most cases, you probably want to remove the call to stripslashes
from your new callback.Inside the filter inject this JavaScript which will bring the login page like this. If you don't do this then in your AJAX call you will get login page and the contents of login page will be appended.
Inside your filter or redirect insert this script in response:
String scr = "<script>window.location=\""+request.getContextPath()+"/login.do\"</script>";
response.getWriter().write(scr);
You need to merge the remote branch into your current branch by running git pull
.
If your local branch is already up-to-date, you may also need to run git pull --rebase
.
A quick google search also turned up this same question asked by another SO user: Cannot push to GitHub - keeps saying need merge. More details there.
I simplification for Science_Fiction's answer I think is to use the exclusive or function so you can just have:
if(checkbox1.checked ^ checkbox2.checked)
{
//do stuff
}
That is assuming you want to do the same thing for both situations.
import java.io.IOException;
import java.nio.file.FileSystems;
import java.nio.file.FileVisitResult;
import java.nio.file.Path;
import java.nio.file.PathMatcher;
import java.nio.file.SimpleFileVisitor;
import java.nio.file.attribute.BasicFileAttributes;
import java.util.ArrayList;
public class FileFinder extends SimpleFileVisitor<Path> {
private PathMatcher matcher;
public ArrayList<Path> foundPaths = new ArrayList<>();
public FileFinder(String pattern) {
matcher = FileSystems.getDefault().getPathMatcher("glob:" + pattern);
}
@Override
public FileVisitResult visitFile(Path file, BasicFileAttributes attrs) throws IOException {
Path name = file.getFileName();
if (matcher.matches(name)) {
foundPaths.add(file);
}
return FileVisitResult.CONTINUE;
}
}
import java.io.IOException;
import java.nio.file.Files;
import java.nio.file.LinkOption;
import java.nio.file.Path;
import java.nio.file.Paths;
import java.util.ArrayList;
public class Main {
public static void main(String[] args) throws IOException {
Path fileDir = Paths.get("files");
FileFinder finder = new FileFinder("*.txt");
Files.walkFileTree(fileDir, finder);
ArrayList<Path> foundFiles = finder.foundPaths;
if (foundFiles.size() > 0) {
for (Path path : foundFiles) {
System.out.println(path.toRealPath(LinkOption.NOFOLLOW_LINKS));
}
} else {
System.out.println("No files were founds!");
}
}
}
Since there are many different kinds of casting each with different semantics, static_cast<> allows you to say "I'm doing a legal conversion from one type to another" like from int to double. A plain C-style cast can mean a lot of things. Are you up/down casting? Are you reinterpreting a pointer?
To read a file from internal storage:
Call openFileInput() and pass it the name of the file to read. This returns a FileInputStream. Read bytes from the file with read(). Then close the stream with close().
code::
StringBuilder sb = new StringBuilder();
try{
BufferedReader reader = new BufferedReader(new InputStreamReader(is, "UTF-8"));
String line = null;
while ((line = reader.readLine()) != null) {
sb.append(line).append("\n");
}
is.close();
} catch(OutOfMemoryError om){
om.printStackTrace();
} catch(Exception ex){
ex.printStackTrace();
}
String result = sb.toString();
An alternative solution to changing the font size is to change the padding. When Python saves your PNG, you can change the layout using the dialogue box that opens. The spacing between the axes, padding if you like can be altered at this stage.
Getting the friends like @nfvs describes is a good way. It outputs a multi-dimensional array with all friends with attributes id and name (ordered by id). You can see the friends photos like this:
foreach ($friends as $key=>$value) {
echo count($value) . ' Friends';
echo '<hr />';
echo '<ul id="friends">';
foreach ($value as $fkey=>$fvalue) {
echo '<li><img src="https://graph.facebook.com/' . $fvalue->id . '/picture" title="' . $fvalue->name . '"/></li>';
}
echo '</ul>';
}
req
is an object containing information about the HTTP request that raised the event. In response to req
, you use res
to send back the desired HTTP response.
Those parameters can be named anything. You could change that code to this if it's more clear:
app.get('/user/:id', function(request, response){
response.send('user ' + request.params.id);
});
Edit:
Say you have this method:
app.get('/people.json', function(request, response) { });
The request will be an object with properties like these (just to name a few):
request.url
, which will be "/people.json"
when this particular action is triggeredrequest.method
, which will be "GET"
in this case, hence the app.get()
call.request.headers
, containing items like request.headers.accept
, which you can use to determine what kind of browser made the request, what sort of responses it can handle, whether or not it's able to understand HTTP compression, etc.request.query
(e.g. /people.json?foo=bar
would result in request.query.foo
containing the string "bar"
).To respond to that request, you use the response object to build your response. To expand on the people.json
example:
app.get('/people.json', function(request, response) {
// We want to set the content-type header so that the browser understands
// the content of the response.
response.contentType('application/json');
// Normally, the data is fetched from a database, but we can cheat:
var people = [
{ name: 'Dave', location: 'Atlanta' },
{ name: 'Santa Claus', location: 'North Pole' },
{ name: 'Man in the Moon', location: 'The Moon' }
];
// Since the request is for a JSON representation of the people, we
// should JSON serialize them. The built-in JSON.stringify() function
// does that.
var peopleJSON = JSON.stringify(people);
// Now, we can use the response object's send method to push that string
// of people JSON back to the browser in response to this request:
response.send(peopleJSON);
});
I did a small mistake that should be kept in mind. If you are using your keystore then give your alias name, not androiddebugkey...
I solved my problem. Now if Facebook is there installed in my device, then still my app is getting data on the Facebook login integration. Just only care about your hash key.
Please see below.
C:\Program Files\Java\jdk1.6.0_45\bin>keytool -exportcert -alias here your alias name -keystore "G:\yourkeystorename.keystore" |"G:\ssl\bin\openssl" sha1 -binary | "G:\ssl\bin\openssl" base64
Then press Enter - it will ask you for the password and then enter your keystore password, not Android.
Cool.
You can go from String (hex)
to byte array
to String as UTF-8(?)
. Make sure your hex string does not have leading spaces and stuff.
public static byte[] hexStringToByteArray(String hex) {
int l = hex.length();
byte[] data = new byte[l / 2];
for (int i = 0; i < l; i += 2) {
data[i / 2] = (byte) ((Character.digit(hex.charAt(i), 16) << 4)
+ Character.digit(hex.charAt(i + 1), 16));
}
return data;
}
Usage:
String b = "0xfd00000aa8660b5b010006acdc0100000101000100010000";
byte[] bytes = hexStringToByteArray(b);
String st = new String(bytes, StandardCharsets.UTF_8);
System.out.println(st);
A simple way to see remote branches is:
git branch -r
To see local branches:
git branch -l
This is the recommended way.
$datetime = new DateTime('2010-12-30 23:21:46');
echo $datetime->format(DateTime::ATOM); // Updated ISO8601
For older versions of PHP, or if you are more comfortable with procedural code.
echo date(DATE_ISO8601, strtotime('2010-12-30 23:21:46'));
You must specify which type the response is
this.productService.getProducts().subscribe(res => {
this.productsArray = res;
});
Try this
this.productService.getProducts().subscribe((res: Product[]) => {
this.productsArray = res;
});
This is a base service class (ServiceBase subclass) that can be subclassed to build a windows service that can be easily installed from the command line, without installutil.exe. This solution is derived from How to make a .NET Windows Service start right after the installation?, adding some code to get the service Type using the calling StackFrame
public abstract class InstallableServiceBase:ServiceBase
{
/// <summary>
/// returns Type of the calling service (subclass of InstallableServiceBase)
/// </summary>
/// <returns></returns>
protected static Type getMyType()
{
Type t = typeof(InstallableServiceBase);
MethodBase ret = MethodBase.GetCurrentMethod();
Type retType = null;
try
{
StackFrame[] frames = new StackTrace().GetFrames();
foreach (StackFrame x in frames)
{
ret = x.GetMethod();
Type t1 = ret.DeclaringType;
if (t1 != null && !t1.Equals(t) && !t1.IsSubclassOf(t))
{
break;
}
retType = t1;
}
}
catch
{
}
return retType;
}
/// <summary>
/// returns AssemblyInstaller for the calling service (subclass of InstallableServiceBase)
/// </summary>
/// <returns></returns>
protected static AssemblyInstaller GetInstaller()
{
Type t = getMyType();
AssemblyInstaller installer = new AssemblyInstaller(
t.Assembly, null);
installer.UseNewContext = true;
return installer;
}
private bool IsInstalled()
{
using (ServiceController controller =
new ServiceController(this.ServiceName))
{
try
{
ServiceControllerStatus status = controller.Status;
}
catch
{
return false;
}
return true;
}
}
private bool IsRunning()
{
using (ServiceController controller =
new ServiceController(this.ServiceName))
{
if (!this.IsInstalled()) return false;
return (controller.Status == ServiceControllerStatus.Running);
}
}
/// <summary>
/// protected method to be called by a public method within the real service
/// ie: in the real service
/// new internal void InstallService()
/// {
/// base.InstallService();
/// }
/// </summary>
protected void InstallService()
{
if (this.IsInstalled()) return;
try
{
using (AssemblyInstaller installer = GetInstaller())
{
IDictionary state = new Hashtable();
try
{
installer.Install(state);
installer.Commit(state);
}
catch
{
try
{
installer.Rollback(state);
}
catch { }
throw;
}
}
}
catch
{
throw;
}
}
/// <summary>
/// protected method to be called by a public method within the real service
/// ie: in the real service
/// new internal void UninstallService()
/// {
/// base.UninstallService();
/// }
/// </summary>
protected void UninstallService()
{
if (!this.IsInstalled()) return;
if (this.IsRunning()) {
this.StopService();
}
try
{
using (AssemblyInstaller installer = GetInstaller())
{
IDictionary state = new Hashtable();
try
{
installer.Uninstall(state);
}
catch
{
throw;
}
}
}
catch
{
throw;
}
}
private void StartService()
{
if (!this.IsInstalled()) return;
using (ServiceController controller =
new ServiceController(this.ServiceName))
{
try
{
if (controller.Status != ServiceControllerStatus.Running)
{
controller.Start();
controller.WaitForStatus(ServiceControllerStatus.Running,
TimeSpan.FromSeconds(10));
}
}
catch
{
throw;
}
}
}
private void StopService()
{
if (!this.IsInstalled()) return;
using (ServiceController controller =
new ServiceController(this.ServiceName))
{
try
{
if (controller.Status != ServiceControllerStatus.Stopped)
{
controller.Stop();
controller.WaitForStatus(ServiceControllerStatus.Stopped,
TimeSpan.FromSeconds(10));
}
}
catch
{
throw;
}
}
}
}
All you have to do is to implement two public/internal methods in your real service:
new internal void InstallService()
{
base.InstallService();
}
new internal void UninstallService()
{
base.UninstallService();
}
and then call them when you want to install the service:
static void Main(string[] args)
{
if (Environment.UserInteractive)
{
MyService s1 = new MyService();
if (args.Length == 1)
{
switch (args[0])
{
case "-install":
s1.InstallService();
break;
case "-uninstall":
s1.UninstallService();
break;
default:
throw new NotImplementedException();
}
}
}
else {
ServiceBase[] ServicesToRun;
ServicesToRun = new ServiceBase[]
{
new MyService()
};
ServiceBase.Run(MyService);
}
}
If you run this as administrator, that error should go away
I suggest to have array of buffers and concat to resulting buffer only once at the end. Its easy to do manually, or one could use node-buffers
You can use Redirect::away($url)
If you are using jQuery:
$.inArray(5 + 5, [ "8", "9", "10", 10 + "" ]);
For more information: http://api.jquery.com/jQuery.inArray/
It's a linker error. ld
is the linker, so if you get an error message ending with "ld returned 1 exit status", that tells you that it's a linker error.
The error message tells you that none of the object files you're linking against contains a definition for avergecolumns
. The reason for that is that the function you've defined is called averagecolumns
(in other words: you misspelled the function name when calling the function (and presumably in the header file as well - otherwise you'd have gotten a different error at compile time)).
Assuming you want to change the colour of the currently selected link/tab... you're best bet is to apply a class (say active
) to the currently selected link/tab and then style this differently.
Example style could be:
li.active, a.active {
background-color: #f90;
}
Here is how I was able to trick Excel to count expired certifications in a list. I didn't have a set date, or date range, just current date. "TODAY()" doesn't work in these for Excel 2013. It sees it as text or condition, not the date value. So these previous didn't work for me. So the word problem/scenario: How many people are expired in this list?
Use: =IFERROR(D5-TODAY(),0) Where D5 is the date to be interrogated.
Then use: =IF(J5>=1,1,0) Where J5 is the cell where the first equation is producing either a positive or negative number. This set, I have hidden on the side of the visible sheet, then I just sum the total for the number of unexpired members.
you could use datetime
library to get UTC time even local time.
import datetime
utc_time = datetime.datetime.utcnow()
print(utc_time.strftime('%Y%m%d %H%M%S'))
foo(*ob);
You don't need to cast it because it's the same Object type, you just need to dereference it.
Yii::app()->request->url
Yii::$app->request->url
This is a simple one line way to do it:
try {
URL url = new URL("http://....");
Bitmap image = BitmapFactory.decodeStream(url.openConnection().getInputStream());
} catch(IOException e) {
System.out.println(e);
}
If you want to do something more complicated with your text you could create your own filter and do some magic before returning the html. With a templatag file looking like this:
from django import template
from django.utils.safestring import mark_safe
register = template.Library()
@register.filter
def do_something(title, content):
something = '<h1>%s</h1><p>%s</p>' % (title, content)
return mark_safe(something)
Then you could add this in your template file
<body>
...
{{ title|do_something:content }}
...
</body>
And this would give you a nice outcome.
SELECT * FROM user_cons_columns WHERE table_name = 'table_name';
Will "length" ever deviate from the real length of "s". If the answer is no, then you don't need to store length, because strings store their length already, and you can just call s.Length.
To get the syntax you asked for, you can implement an "implicit" operator like so:
static implicit operator MyStruct(string s) {
return new MyStruct(...);
}
The implicit operator will work, regardless of whether you make your struct mutable or not.
You need to require only one plugin which is the Subversion plugin.
Then simply, go into Jenkins ? job_name ? Build Trigger section ? (i) Trigger build remotely (i.e., from scripts) Authentication token: Token_name
Go to the SVN server's hooks directory, and then after fire the below commands:
cp post-commit.tmpl post-commit
chmod 777 post-commit
chown -R www-data:www-data post-commit
vi post-commit
Note: All lines should be commented Add the below line at last
Syntax (for Linux users):
/usr/bin/curl http://username:API_token@localhost:8081/job/job_name/build?token=Token_name
Syntax (for Windows user):
C:/curl_for_win/curl http://username:API_token@localhost:8081/job/job_name/build?token=Token_name
I open a text editor, in my case I used Atom. Paste this code
var http = require('http');
http.createServer(function (req, res) {
res.writeHead(200, {'Content-Type': 'text/plain'});
res.end('Hello World\n');
}).listen(1337, '127.0.0.1');
console.log('Server running at http://127.0.0.1:1337/');
and save as
helloworld.js
in
c:\xampp\htdocs\myproject
directory. Next I open node.js commamd prompt enter
cd c:\xampp\htdocs\myproject
next
node helloworld.js
next I open my chrome browser and I type
http://localhost:1337
and there it is.
ALTER TABLE public.contract_termination_requests
ALTER COLUMN management_company_id DROP NOT NULL;
I think you can archive that by add multiple layout resource for each screen size, example:
res/layout/my_layout.xml // layout for normal screen size ("default")
res/layout-small/my_layout.xml // layout for small screen size with small text
res/layout-large/my_layout.xml // layout for large screen size with larger text
res/layout-xlarge/my_layout.xml // layout for extra large screen size with even larger text
res/layout-xlarge-land/my_layout.xml // layout for extra large in landscape orientation
Reference: 1.http://developer.android.com/guide/practices/screens_support.html
Instead of using the outrageously convoluted data structures required by ggplot2, you can use the native R functions:
tab<-read.delim(text="
Company 2011 2013
Company1 300 350
Company2 320 430
Company3 310 420
",as.is=TRUE,sep=" ",row.names=1)
tab<-t(tab)
plot(tab[,1],type="b",ylim=c(min(tab),max(tab)),col="red",lty=1,ylab="Value",lwd=2,xlab="Year",xaxt="n")
lines(tab[,2],type="b",col="black",lty=2,lwd=2)
lines(tab[,3],type="b",col="blue",lty=3,lwd=2)
grid()
legend("topleft",legend=colnames(tab),lty=c(1,2,3),col=c("red","black","blue"),bg="white",lwd=2)
axis(1,at=c(1:nrow(tab)),labels=rownames(tab))
Your action method considers model type asList<string>
. But, in your view you are waiting for IEnumerable<Standings.Models.Teams>
.
You can solve this problem with changing the model in your view to List<string>
.
But, the best approach would be to return IEnumerable<Standings.Models.Teams>
as a model from your action method. Then you haven't to change model type in your view.
But, in my opinion your models are not correctly implemented. I suggest you to change it as:
public class Team
{
public int Position { get; set; }
public string HomeGround {get; set;}
public string NickName {get; set;}
public int Founded { get; set; }
public string Name { get; set; }
}
Then you must change your action method as:
public ActionResult Index()
{
var model = new List<Team>();
model.Add(new Team { Name = "MU"});
model.Add(new Team { Name = "Chelsea"});
...
return View(model);
}
And, your view:
@model IEnumerable<Standings.Models.Team>
@{
ViewBag.Title = "Standings";
}
@foreach (var item in Model)
{
<div>
@item.Name
<hr />
</div>
}
The question is kind of old, but I get a good result creating a function to convert an object in a Json string from a string variable to an integer
function getInt(arr, prop) {
var int;
for (var i=0 ; i<arr.length ; i++) {
int = parseInt(arr[i][prop])
arr[i][prop] = int;
}
return arr;
}
the function just go thru the array and return all elements of the object of your selection as an integer
If you're using (or are happy to use) Apache Commons Collections, you can use CollectionUtils.isEqualCollection which "returns true iff the given Collections contain exactly the same elements with exactly the same cardinalities."
line-height does fix it, but you might have to make it pretty large: on my setttings I have to increase line-height to about 1.8 before the <sup>
no longer interferes with it, but this will vary from font to font.
One possible approach to get consistent line heights is to set your own superscript styling instead of the default vertical-align: super
. If you use top
it won't add anything to the line box, but you may have to reduce font size further to make it fit:
sup { vertical-align: top; font-size: 0.6em; }
Another hack you could try is to use positioning to move it up a bit without affecting the line box:
sup { vertical-align: top; position: relative; top: -0.5em; }
Of course this runs the risk of crashing into the line above if you don't have enough line-height.
I was looking for the right method to handle those radio buttons here is an example for a solution I found here:
<tr *ngFor="let entry of entries">
<td>{{ entry.description }}</td>
<td>
<input type="radio" name="radiogroup"
[value]="entry.id"
(change)="onSelectionChange(entry)">
</td>
</tr>
Notice the onSelectionChange that passes the current element to the method.
You could use a VB Script I wrote exactly for this purpose: https://github.com/ezrarieben/mssql-backup-vbs/
Schedule a task in the "Task Scheduler" to execute the script as you like and it'll backup the entire DB to a BAK file and save it wherever you specify.
Even user has got answer and @Michael - sqlbot has covered mostly points very well in his post but one point is missing, so just trying to cover it.
If you want to provide read permission to a simple user (Not admin kind of)-
GRANT SELECT, EXECUTE ON DB_NAME.* TO 'user'@'localhost' IDENTIFIED BY 'PASSWORD';
Note: EXECUTE is required here, so that user can read data if there is a stored procedure which produce a report (have few select statements).
Replace localhost with specific IP from which user will connect to DB.
Additional Read Permissions are-
As the question specifies Linux, my favourite technique for discovering the IP-addresses of a machine is to use netlink. By creating a netlink socket of the protocol NETLINK_ROUTE, and sending an RTM_GETADDR, your application will received a message(s) containing all available IP addresses. An example is provided here.
In order to simply parts of the message handling, libmnl is convenient. If you are curios in figuring out more about the different options of NETLINK_ROUTE (and how they are parsed), the best source is the source code of iproute2 (especially the monitor application) as well as the receive functions in the kernel. The man page of rtnetlink also contains useful information.
Don't forget to convert your object into Json first using Gson()
val fromUserJson = Gson().toJson(notificationRequest.fromUser)
Then you can easily convert it back into an object using this awesome library
val fromUser = Gson().fromJson(fromUserJson, User::class.java)
Yes, require is a Node.JS function and doesn't work in client side scripting without certain requirements. If you're getting this error while writing electronJS code, try the following:
In your BrowserWindow declaration, add the following webPreferences field:
i.e, instead of plain mainWindow = new BrowserWindow()
, write
mainWindow = new BrowserWindow({
webPreferences: {
nodeIntegration: true
}
});
This code works for me perfectly:
String numbers = text.substring(Math.max(0, text.length() - 7));
The best speed when run query
DECLARE @num INT = 1000
WHILE(@num<1050)
begin
INSERT INTO [dbo].[Codes]
( Code
)
VALUES (@num)
SET @num = @num + 1
end
example:
AliceBlue
AntiqueWhite
Aqua
Aquamarine
Beige
Replcae \n with ","
AliceBlue","AntiqueWhite","Aqua","Aquamarine","Beige
Now append "(double-quote) at the start and end
"AliceBlue","AntiqueWhite","Aqua","Aquamarine","Beige"
If your text contains blank lines in between you can use regular expression \n+ instead of \n
example:
AliceBlue
AntiqueWhite
Aqua
Aquamarine
Beige
Replcae \n+ with "," (in regex mode)
AliceBlue","AntiqueWhite","Aqua","Aquamarine","Beige
Now append "(double-quote) at the start and end
"AliceBlue","AntiqueWhite","Aqua","Aquamarine","Beige"
In CSS, for the font-weight
property, the value: normal
defaults to the numeric value 400, and bold
to 700.
If you want to specify other weights, you need to give the number value. That number value needs to be supported for the font family that you are using.
For example you would define semi-bold like this:
font-weight: 600;
Here an JSFiddle using 'Open Sans' font family, loaded with the above weights.
RubyMine is so awesome. Everything just works. I could go on and on. Code completion is fast, smooth, and accurate. Formatting is instantaneous. Project navigation is easy and without struggle. You can pop open any file with a few keystrokes. You don't even need to keep the project tree open, but it's there if you want. You can configure just about any aspect of it to behave exactly how you want.
NetBeans, Eclipse, and RubyMine all have more or less the same set of features. However, RubyMine is just so much more cleanly designed and easy to use. There's nothing awkward or clunky about it. There are all these nice little design touches that show how JetBrains really put thought into it instead of just amassing a big pile of features.
Incidentally RubyMine can do a lot of the things that Vim can do like select and edit a column of text or split the view into several editing panels with different files in them.
There are several solutions to this but this is the pattern I tend to use.
// Form 1
// inside the button click event
using(Form2 form2 = new Form2())
{
if(form2.ShowDialog() == DialogResult.OK)
{
someControlOnForm1.Text = form2.TheValue;
}
}
And...
// Inside Form2
// Create a public property to serve the value
public string TheValue
{
get { return someTextBoxOnForm2.Text; }
}
To solve the problem of not being able to start mongodb on ubuntu 16.04 1) look at mongodb log file
2) we find that the error is due to "Failed to unlink socket file /tmp/mongodb-27017"
3) Look at the permission of file /tmp/mongdb-27017.lock and find that the owner is root instead of mongodb
4) Delete the /tmp/mongodb-27017.sock file manually and use the command "sudo chown mongodb:mongodb /tmp/mongodb*"
5) Start the service with systemcl and use netstat to check whther mongdob has been started on port 27017
Credit: https://www.mkyong.com/mongodb/mongodb-failed-to-unlink-socket-file-tmpmongodb-27017/ https://hevodata.com/blog/install-mongodb-on-ubuntu/
Using java.net.URI class:
public String getDecodedURL(String encodedUrl) {
try {
URI uri = new URI(encodedUrl);
return uri.getScheme() + ":" + uri.getSchemeSpecificPart();
} catch (Exception e) {
return "";
}
}
Please note that exception handling can be better, but it's not much relevant for this example.
In addition to Cody's useful comments it is worth noting that at times you won't know how big your array should be. The two options in this situation are
Redim Preserve
The code below provides an example of a routine that will dimension myArray
in line with the lngSize
variable, then add additional elements (equal to the initial array size) by use of a Mod
test whenever the upper bound is about to be exceeded
Option Base 1
Sub ArraySample()
Dim myArray() As String
Dim lngCnt As Long
Dim lngSize As Long
lngSize = 10
ReDim myArray(1 To lngSize)
For lngCnt = 1 To lngSize*5
If lngCnt Mod lngSize = 0 Then ReDim Preserve myArray(1 To UBound(myArray) + lngSize)
myArray(lngCnt) = "I am record number " & lngCnt
Next
End Sub
$this->db->like('title', 'match', 'before');
// Produces: WHERE title LIKE '%match'
$this->db->like('title', 'match', 'after');
// Produces: WHERE title LIKE 'match%'
$this->db->like('title', 'match', 'both');
// Produces: WHERE title LIKE '%match%'
You can adjust the plot margins with plot.margin
in theme()
and then move your axis labels and title with the vjust
argument of element_text()
. For example :
library(ggplot2)
library(grid)
qplot(rnorm(100)) +
ggtitle("Title") +
theme(axis.title.x=element_text(vjust=-2)) +
theme(axis.title.y=element_text(angle=90, vjust=-0.5)) +
theme(plot.title=element_text(size=15, vjust=3)) +
theme(plot.margin = unit(c(1,1,1,1), "cm"))
will give you something like this :
If you want more informations about the different theme()
parameters and their arguments, you can just enter ?theme
at the R prompt.
Prior to standardization there was ioctl(
...FIONBIO
...)
and fcntl(
...O_NDELAY
...)
, but these behaved inconsistently between systems, and even within the same system. For example, it was common for FIONBIO
to work on sockets and O_NDELAY
to work on ttys, with a lot of inconsistency for things like pipes, fifos, and devices. And if you didn't know what kind of file descriptor you had, you'd have to set both to be sure. But in addition, a non-blocking read with no data available was also indicated inconsistently; depending on the OS and the type of file descriptor the read may return 0, or -1 with errno EAGAIN, or -1 with errno EWOULDBLOCK. Even today, setting FIONBIO
or O_NDELAY
on Solaris causes a read with no data to return 0 on a tty or pipe, or -1 with errno EAGAIN on a socket. However 0 is ambiguous since it is also returned for EOF.
POSIX addressed this with the introduction of O_NONBLOCK
, which has standardized behavior across different systems and file descriptor types. Because existing systems usually want to avoid any changes to behavior which might break backward compatibility, POSIX defined a new flag rather than mandating specific behavior for one of the others. Some systems like Linux treat all 3 the same, and also define EAGAIN and EWOULDBLOCK to the same value, but systems wishing to maintain some other legacy behavior for backward compatibility can do so when the older mechanisms are used.
New programs should use fcntl(
...O_NONBLOCK
...)
, as standardized by POSIX.
You define a boolean value with default of true, and then inside an IE conditional comment, set the value to false, and use the value of this to determine whether your advanced code should run. Something like:
<script type="text/javascript">var runFancy = true;</script>
<!--[if IE]>
<script type="text/javascript">
runFancy = false;
//any other IE specific stuff here
</script>
<![endif]-->
<script type="text/javascript">
if (runFancy) {
//do your code that works with sane browsers
}
</script>
Wikipedia has us covered:
In computer science, overhead is generally considered any combination of excess or indirect computation time, memory, bandwidth, or other resources that are required to attain a particular goal. It is a special case of engineering overhead.
You can designate a button as the "AcceptButton" in the Form's properties and that will catch any "Enter" keypresses on the form and route them to that control.
See How to: Designate a Windows Forms Button as the Accept Button Using the Designer and note the few exceptions it outlines (multi-line text-boxes, etc.)
I've heard that using sudo
with pip
is unsafe.
Try adding --user
to the end of your command, as mentioned here.
pip install packageName --user
I suspect that installing with this method means the packages are not available to other users.
In order to do this in SQL Server, you must order the query by a column, so you can specify the rows you want.
Example:
select * from table order by [some_column]
offset 10 rows
FETCH NEXT 10 rows only
Differences might not be meaningful in a typical use case, but using the standard DOM functionality
$("#el")[0].outerHTML
is about twice as fast as
$("<div />").append($("#el").clone()).html();
so I would go with:
/*
* Return outerHTML for the first element in a jQuery object,
* or an empty string if the jQuery object is empty;
*/
jQuery.fn.outerHTML = function() {
return (this[0]) ? this[0].outerHTML : '';
};
You can't restyle the default MessageBox as that's dependant on the current Windows OS theme, however you can easily create your own MessageBox. Just add a new form (i.e. MyNewMessageBox) to your project with these settings:
FormBorderStyle FixedToolWindow
ShowInTaskBar False
StartPosition CenterScreen
To show it use myNewMessageBoxInstance.ShowDialog();
. And add a label and buttons to your form, such as OK and Cancel and set their DialogResults appropriately, i.e. add a button to MyNewMessageBox
and call it btnOK
. Set the DialogResult
property in the property window to DialogResult.OK
. When that button is pressed it would return the OK result:
MyNewMessageBox myNewMessageBoxInstance = new MyNewMessageBox();
DialogResult result = myNewMessageBoxInstance.ShowDialog();
if (result == DialogResult.OK)
{
// etc
}
It would be advisable to add your own Show method that takes the text and other options you require:
public DialogResult Show(string text, Color foreColour)
{
lblText.Text = text;
lblText.ForeColor = foreColour;
return this.ShowDialog();
}
html:
<form method="post" name="form1" id="form1">
<input id="submit" name="submit" type="submit" value="Submit" onclick="eatFood();" />
</form>
Javascript: to submit the form using javascript
function eatFood() {
document.getElementById('form1').submit();
}
to show onclick message
function eatFood() {
alert('Form has been submitted');
}
Configuring Identity to your existing project is not hard thing. You must install some NuGet package and do some small configuration.
First install these NuGet packages with Package Manager Console:
PM> Install-Package Microsoft.AspNet.Identity.Owin
PM> Install-Package Microsoft.AspNet.Identity.EntityFramework
PM> Install-Package Microsoft.Owin.Host.SystemWeb
Add a user class and with IdentityUser
inheritance:
public class AppUser : IdentityUser
{
//add your custom properties which have not included in IdentityUser before
public string MyExtraProperty { get; set; }
}
Do same thing for role:
public class AppRole : IdentityRole
{
public AppRole() : base() { }
public AppRole(string name) : base(name) { }
// extra properties here
}
Change your DbContext
parent from DbContext
to IdentityDbContext<AppUser>
like this:
public class MyDbContext : IdentityDbContext<AppUser>
{
// Other part of codes still same
// You don't need to add AppUser and AppRole
// since automatically added by inheriting form IdentityDbContext<AppUser>
}
If you use the same connection string and enabled migration, EF will create necessary tables for you.
Optionally, you could extend UserManager
to add your desired configuration and customization:
public class AppUserManager : UserManager<AppUser>
{
public AppUserManager(IUserStore<AppUser> store)
: base(store)
{
}
// this method is called by Owin therefore this is the best place to configure your User Manager
public static AppUserManager Create(
IdentityFactoryOptions<AppUserManager> options, IOwinContext context)
{
var manager = new AppUserManager(
new UserStore<AppUser>(context.Get<MyDbContext>()));
// optionally configure your manager
// ...
return manager;
}
}
Since Identity is based on OWIN you need to configure OWIN too:
Add a class to App_Start
folder (or anywhere else if you want). This class is used by OWIN. This will be your startup class.
namespace MyAppNamespace
{
public class IdentityConfig
{
public void Configuration(IAppBuilder app)
{
app.CreatePerOwinContext(() => new MyDbContext());
app.CreatePerOwinContext<AppUserManager>(AppUserManager.Create);
app.CreatePerOwinContext<RoleManager<AppRole>>((options, context) =>
new RoleManager<AppRole>(
new RoleStore<AppRole>(context.Get<MyDbContext>())));
app.UseCookieAuthentication(new CookieAuthenticationOptions
{
AuthenticationType = DefaultAuthenticationTypes.ApplicationCookie,
LoginPath = new PathString("/Home/Login"),
});
}
}
}
Almost done just add this line of code to your web.config
file so OWIN could find your startup class.
<appSettings>
<!-- other setting here -->
<add key="owin:AppStartup" value="MyAppNamespace.IdentityConfig" />
</appSettings>
Now in entire project you could use Identity just like any new project had already installed by VS. Consider login action for example
[HttpPost]
public ActionResult Login(LoginViewModel login)
{
if (ModelState.IsValid)
{
var userManager = HttpContext.GetOwinContext().GetUserManager<AppUserManager>();
var authManager = HttpContext.GetOwinContext().Authentication;
AppUser user = userManager.Find(login.UserName, login.Password);
if (user != null)
{
var ident = userManager.CreateIdentity(user,
DefaultAuthenticationTypes.ApplicationCookie);
//use the instance that has been created.
authManager.SignIn(
new AuthenticationProperties { IsPersistent = false }, ident);
return Redirect(login.ReturnUrl ?? Url.Action("Index", "Home"));
}
}
ModelState.AddModelError("", "Invalid username or password");
return View(login);
}
You could make roles and add to your users:
public ActionResult CreateRole(string roleName)
{
var roleManager=HttpContext.GetOwinContext().GetUserManager<RoleManager<AppRole>>();
if (!roleManager.RoleExists(roleName))
roleManager.Create(new AppRole(roleName));
// rest of code
}
You could also add a role to a user, like this:
UserManager.AddToRole(UserManager.FindByName("username").Id, "roleName");
By using Authorize
you could guard your actions or controllers:
[Authorize]
public ActionResult MySecretAction() {}
or
[Authorize(Roles = "Admin")]]
public ActionResult MySecretAction() {}
You can also install additional packages and configure them to meet your requirement like Microsoft.Owin.Security.Facebook
or whichever you want.
Note: Don't forget to add relevant namespaces to your files:
using Microsoft.AspNet.Identity;
using Microsoft.Owin.Security;
using Microsoft.AspNet.Identity.Owin;
using Microsoft.AspNet.Identity.EntityFramework;
using Microsoft.Owin;
using Microsoft.Owin.Security.Cookies;
using Owin;
You could also see my other answers like this and this for advanced use of Identity.
Less text is required with this approach:
ls -r | ? {$_.mode -match "d"}
The accepted answer works well and one can also just use the
If Exists (...) Then ... End If;
syntax in Mysql procedures (if acceptable for circumstance) and it will behave as desired/expected. Here's a link to a more thorough source/description: https://dba.stackexchange.com/questions/99120/if-exists-then-update-else-insert
One problem with the solution by @SnowyR is that it does not really behave like "If Exists" in that the (Select 1 = 1 ...) subquery could return more than one row in some circumstances and so it gives an error. I don't have permissions to respond to that answer directly so I thought I'd mention it here in case it saves someone else the trouble I experienced and so others might know that it is not an equivalent solution to MSSQLServer "if exists"!
there are 2 solutions:
visit this jsfiddle
in your css you can add this:
.input-disabled{background-color:#EBEBE4;border:1px solid #ABADB3;padding:2px 1px;}
in your js do something like this:
$('#test').attr('readonly', true);
$('#test').addClass('input-disabled');
Hope this help.
Another way is using hidden input field as mentioned by some of the comments. However bear in mind that, in the backend code, you need to make sure you validate this newly hidden input at correct scenario. Hence I'm not recommend this way as it will create more bugs if its not handle properly.
/***Your Code***/
public void paintComponent(Graphics g){
/***Your Code***/
g.setColor(Color.RED);
g.fillOval(50,50,20,20);
}
g.fillOval(x-axis,y-axis,width,height);
ok, everyone is making sense and I took all the pieces and put them here to help newbies like myself that need beginning to end explanation.
You make your big class that holds 2 classes, as per @Andrew's answer.
public class teamBoards{
public Boards Boards{get; set;}
public Team Team{get; set;}
}
Then in your controller you fill the 2 models. Sometimes you only need to fill one. Then in the return, you reference the big model and it will take the 2 inside with it to the View.
TeamBoards teamBoards = new TeamBoards();
teamBoards.Boards = (from b in db.Boards
where b.TeamId == id
select b).ToList();
teamBoards.Team = (from t in db.Teams
where t.TeamId == id
select t).FirstOrDefault();
return View(teamBoards);
At the top of the View
@model yourNamespace.Models.teamBoards
Then load your inputs or displays referencing the big Models contents:
@Html.EditorFor(m => Model.Board.yourField)
@Html.ValidationMessageFor(m => Model.Board.yourField, "", new { @class = "text-danger-yellow" })
@Html.EditorFor(m => Model.Team.yourField)
@Html.ValidationMessageFor(m => Model.Team.yourField, "", new { @class = "text-danger-yellow" })
And. . . .back at the ranch, when the Post comes in, reference the Big Class:
public ActionResult ContactNewspaper(teamBoards teamboards)
and make use of what the model(s) returned:
string yourVariable = teamboards.Team.yourField;
Probably have some DataAnnotation Validation stuff in the class and probably put if(ModelState.IsValid) at the top of the save/edit block. . .
SELECT (sysdate-365 + (LEVEL -1)) AS DATES
FROM DUAL connect by level <=( sysdate-(sysdate-365))
if a 'from' and a 'to' date is replaced in place of sysdate and sysdate-365, the output will be a range of dates between the from and to date.
You are correct in that your list contains a reference to the original dictionary.
a.append(b.copy())
should do the trick.
Bear in mind that this makes a shallow copy. An alternative is to use copy.deepcopy(b)
, which makes a deep copy.
CSS selectors perform far better than Xpath and it is well documented in Selenium community. Here are some reasons,
However there are some situations where, you need to use xpath, for example, searching for a parent element or searching element by its text (I wouldn't recommend the later).
You can read blog from Simon here . He also recommends CSS over Xpath.
If you are testing content then do not use selectors that are dependent on the content of the elements. That will be a maintenance nightmare for every locale. Try talking with developers and use techniques that they used to externalize the text in the application, like dictionaries or resource bundles etc. Here is my blog that explains it in detail.
Thanks to @parishodak, here is the link which provides the numbers proving that CSS performance is better
<script>
function chng()
{
var typ=document.getElementById("fiile").value;
var res = typ.match(".jp");
if(res)
{
alert("sucess");
}
else
{
alert("Sorry only jpeg images are accepted");
document.getElementById("fiile").value="; //clear the uploaded file
}
}
</script>
Now in the html part
<input type="file" onchange="chng()">
this code will check if the uploaded file is a jpg file or not and restricts the upload of other types
You've got to override your Canvas's paint(Graphics g)
method and perform your drawing there. See the paint() documentation.
As it states, the default operation is to clear the canvas, so your call to the canvas' graphics object doesn't perform as you would expect.
//Create our own namespaces for the output
XmlSerializerNamespaces ns = new XmlSerializerNamespaces();
//Add an empty namespace and empty value
ns.Add("", "");
//Create the serializer
XmlSerializer slz = new XmlSerializer(someType);
//Serialize the object with our own namespaces (notice the overload)
slz.Serialize(myXmlTextWriter, someObject, ns)
One workaround is just to use select without any other clauses.
See https://polarssl.org/kb/cryptography/asn1-key-structures-in-der-and-pem (search the page for "BEGIN RSA PRIVATE KEY") (archive link for posterity, just in case).
BEGIN RSA PRIVATE KEY
is PKCS#1 and is just an RSA key. It is essentially just the key object from PKCS#8, but without the version or algorithm identifier in front. BEGIN PRIVATE KEY
is PKCS#8 and indicates that the key type is included in the key data itself. From the link:
The unencrypted PKCS#8 encoded data starts and ends with the tags:
-----BEGIN PRIVATE KEY----- BASE64 ENCODED DATA -----END PRIVATE KEY-----
Within the base64 encoded data the following DER structure is present:
PrivateKeyInfo ::= SEQUENCE { version Version, algorithm AlgorithmIdentifier, PrivateKey BIT STRING } AlgorithmIdentifier ::= SEQUENCE { algorithm OBJECT IDENTIFIER, parameters ANY DEFINED BY algorithm OPTIONAL }
So for an RSA private key, the OID is 1.2.840.113549.1.1.1 and there is a RSAPrivateKey as the PrivateKey key data bitstring.
As opposed to BEGIN RSA PRIVATE KEY
, which always specifies an RSA key and therefore doesn't include a key type OID. BEGIN RSA PRIVATE KEY
is PKCS#1
:
RSA Private Key file (PKCS#1)
The RSA private key PEM file is specific for RSA keys.
It starts and ends with the tags:
-----BEGIN RSA PRIVATE KEY----- BASE64 ENCODED DATA -----END RSA PRIVATE KEY-----
Within the base64 encoded data the following DER structure is present:
RSAPrivateKey ::= SEQUENCE { version Version, modulus INTEGER, -- n publicExponent INTEGER, -- e privateExponent INTEGER, -- d prime1 INTEGER, -- p prime2 INTEGER, -- q exponent1 INTEGER, -- d mod (p-1) exponent2 INTEGER, -- d mod (q-1) coefficient INTEGER, -- (inverse of q) mod p otherPrimeInfos OtherPrimeInfos OPTIONAL }
<ImageButton
android:background="@drawable/action_button_bg"
android:layout_width="56dp"
android:layout_height="56dp"
android:padding="16dp"
android:src="@drawable/ic_add_black_48dp"
android:scaleType="fitXY"
android:elevation="8dp"/>
With the background you provided it results in below button on my device (Nexus 7 2012)
Looks good to me.
Little late to the party but why don't you guys try animation.No I am not telling you to manage animation controllers and disposing them off and all that stuff.theres a built-in widget for that called TweenAnimationBuilder.You can animate between values of any type,heres an example with a Duration class
TweenAnimationBuilder<Duration>(
duration: Duration(minutes: 3),
tween: Tween(begin: Duration(minutes: 3), end: Duration.zero),
onEnd: () {
print('Timer ended');
},
builder: (BuildContext context, Duration value, Widget child) {
final minutes = value.inMinutes;
final seconds = value.inSeconds % 60;
return Padding(
padding: const EdgeInsets.symmetric(vertical: 5),
child: Text('$minutes:$seconds',
textAlign: TextAlign.center,
style: TextStyle(
color: Colors.black,
fontWeight: FontWeight.bold,
fontSize: 30)));
}),
and You also get onEnd call back which notifies you when the animation completes;
here's the output
In case you are still looking for a Windows build of OpenJDK, Azul Systems launched the Zulu product line last fall. The Zulu distribution of OpenJDK is built and tested on Windows and Linux. We posted the OpenJDK 8 version this week, though OpenJDK 7 and 6 are both available too. The following URL leads to you free downloads, the Zulu community forum, and other details: http://www.azulsystems.com/products/zulu These are binary downloads, so you do not need to build OpenJDK from scratch to use them.
I can attest that building OpenJDK 6 for Windows was not a trivial exercise. Of the six different platforms we've built (OpenJDK6, OpenJDK7, and OpenJDK8, each for Windows and Linux) for x64 so far, the Windows OpenJDK6 build took by far the most effort to wring out items that didn't work on Windows, or would not pass the Technical Compatibility Kit test protocol for Java SE 6 "as is."
Disclaimer: I am the Product Manager for Zulu. You can review my Zulu release notices here: https://support.azulsystems.com/hc/communities/public/topics/200063190-Zulu-Releases I hope this helps.
Also there is the short delegate solution:
ServicePointManager.ServerCertificateValidationCallback = delegate { return true; };
Based on a web search, I just found a Chrome plugin called SVG Export.
Available in the Chrome web store: https://chrome.google.com/webstore/detail/svg-export/naeaaedieihlkmdajjefioajbbdbdjgp
The home page is https://svgexport.io
i prefer to physically print my tables instead:
CONNECT_SERVER="https://196.168.1.1/"
CONNECT_API_KEY<-"hpphotosmartP9000:8273827"
data.frame = data.frame(1:1000, 1000:2)
connectServer <- Sys.getenv("CONNECT_SERVER")
apiKey <- Sys.getenv("CONNECT_API_KEY")
install.packages('print2print')
print2print::send2printer(connectServer, apiKey, data.frame)
You can clone just the latest commit using git clone --depth 1 <url>
and then perform your own analysis using Linguist, the same software Github uses. That's the only way I know you're going to get lines of code.
Another option is to use the API to list the languages the project uses. It doesn't give them in lines but in bytes. For example...
$ curl https://api.github.com/repos/evalEmpire/perl5i/languages
{
"Perl": 274835
}
Though take that with a grain of salt, that project includes YAML and JSON which the web site acknowledges but the API does not.
Finally, you can use code search to ask which files match a given language. This example asks which files in perl5i are Perl. https://api.github.com/search/code?q=language:perl+repo:evalEmpire/perl5i
. It will not give you lines, and you have to ask for the file size separately using the returned url
for each file.
I found Mota's answer gave me a 10 times speed increase - so thanks Mota.
I've wrapped up the code in a convenient class which takes the BufferedImage in the constructor and exposes an equivalent getRBG(x,y) method which makes it a drop in replacement for code using BufferedImage.getRGB(x,y)
import java.awt.image.BufferedImage;
import java.awt.image.DataBufferByte;
public class FastRGB
{
private int width;
private int height;
private boolean hasAlphaChannel;
private int pixelLength;
private byte[] pixels;
FastRGB(BufferedImage image)
{
pixels = ((DataBufferByte) image.getRaster().getDataBuffer()).getData();
width = image.getWidth();
height = image.getHeight();
hasAlphaChannel = image.getAlphaRaster() != null;
pixelLength = 3;
if (hasAlphaChannel)
{
pixelLength = 4;
}
}
int getRGB(int x, int y)
{
int pos = (y * pixelLength * width) + (x * pixelLength);
int argb = -16777216; // 255 alpha
if (hasAlphaChannel)
{
argb = (((int) pixels[pos++] & 0xff) << 24); // alpha
}
argb += ((int) pixels[pos++] & 0xff); // blue
argb += (((int) pixels[pos++] & 0xff) << 8); // green
argb += (((int) pixels[pos++] & 0xff) << 16); // red
return argb;
}
}
I resolved error copying the files class.phpmailer.php , class.smtp.php to the folder where the file is PHPMailerAutoload.php, of course there should be the file that we will use to send the email.
This can be done easily and cleanly with float
.
Demo: jsfiddle.net/KcdpW
HTML:
<ul>
<li>Item 1 <span class="right">(1)</span></li>
<li>Item 2 <span class="right">(2)</span></li>
</ul>?
CSS:
ul {
width: 10em
}
.right {
float: right
}?
If you have a lot files to change in your projects you can create functions with the same names like mysql functions, and in the functions make the convert like this code:
$sql_host = "your host";
$sql_username = "username";
$sql_password = "password";
$sql_database = "database";
$mysqli = new mysqli($sql_host , $sql_username , $sql_password , $sql_database );
/* check connection */
if ($mysqli->connect_errno) {
printf("Connect failed: %s\n", $mysqli->connect_error);
exit();
}
function mysql_query($query){
$result = $mysqli->query($query);
return $result;
}
function mysql_fetch_array($result){
if($result){
$row = $result->fetch_assoc();
return $row;
}
}
function mysql_num_rows($result){
if($result){
$row_cnt = $result->num_rows;;
return $row_cnt;
}
}
Another native solution (in coffee):
el = document.getElementsByTagName 'b'
docFrag = document.createDocumentFragment()
docFrag.appendChild el.firstChild while el.childNodes.length
el.parentNode.replaceChild docFrag, el
I don't know if it's faster than user113716's solution, but it might be easier to understand for some.
This should give you the commands printed out in separate lines:
import readline
map(lambda p:print(readline.get_history_item(p)),
map(lambda p:p, range(readline.get_current_history_length()))
)
Raw arrays aren't resizable in C++.
You should be using something like a Vector class which does allow resizing..
std::vector
allows you to resize it as well as allowing dynamic resizing when you add elements (often making the manual resizing unnecessary for adding).
Since JSF 2.3 all the bean scopes defined in package javax.faces.bean
package have been deprecated to align the scopes with CDI. Moreover they're only applicable if your bean is using @ManagedBean
annotation. If you are using JSF versions below 2.3 refer to the legacy answer at the end.
From JSF 2.3 here are scopes that can be used on JSF Backing Beans:
1. @javax.enterprise.context.ApplicationScoped
: The application scope persists for the entire duration of the web application. That scope is shared among all requests and all sessions. This is useful when you have data for whole application.
2. @javax.enterprise.context.SessionScoped
: The session scope persists from the time that a session is established until session termination. The session context is shared between all requests that occur in the same HTTP session. This is useful when you wont to save data for a specific client for a particular session.
3. @javax.enterprise.context.ConversationScoped
: The conversation scope persists as log as the bean lives. The scope provides 2 methods: Conversation.begin()
and Conversation.end()
. These methods should called explicitly, either to start or end the life of a bean.
4. @javax.enterprise.context.RequestScoped
: The request scope is short-lived. It starts when an HTTP request is submitted and ends after the response is sent back to the client. If you place a managed bean into request scope, a new instance is created with each request. It is worth considering request scope if you are concerned about the cost of session scope storage.
5. @javax.faces.flow.FlowScoped
: The Flow scope persists as long as the Flow lives. A flow may be defined as a contained set of pages (or views) that define a unit of work. Flow scoped been is active as long as user navigates with in the Flow.
6. @javax.faces.view.ViewScoped
: A bean in view scope persists while the same JSF page is redisplayed. As soon as the user navigates to a different page, the bean goes out of scope.
The following legacy answer applies JSF version before 2.3
As of JSF 2.x there are 4 Bean Scopes:
- @SessionScoped
- @RequestScoped
- @ApplicationScoped
- @ViewScoped
Session Scope: The session scope persists from the time that a session is established until session termination. A session terminates if the web application invokes the invalidate method on the HttpSession object, or if it times out.
RequestScope: The request scope is short-lived. It starts when an HTTP request is submitted and ends after the response is sent back to the client. If you place a managed bean into request scope, a new instance is created with each request. It is worth considering request scope if you are concerned about the cost of session scope storage.
ApplicationScope: The application scope persists for the entire duration of the web application. That scope is shared among all requests and all sessions. You place managed beans into the application scope if a single bean should be shared among all instances of a web application. The bean is constructed when it is first requested by any user of the application, and it stays alive until the web application is removed from the application server.
ViewScope: View scope was added in JSF 2.0. A bean in view scope persists while the same JSF page is redisplayed. (The JSF specification uses the term view for a JSF page.) As soon as the user navigates to a different page, the bean goes out of scope.
Choose the scope you based on your requirement.
Source: Core Java Server Faces 3rd Edition by David Geary & Cay Horstmann [Page no. 51 - 54]
Crude but working way will be to force the scroll back to top, thus effectively disabling scrolling:
var _stopScroll = false;
window.onload = function(event) {
document.onscroll = function(ev) {
if (_stopScroll) {
document.body.scrollTop = "0px";
}
}
};
When you open the lightbox raise the flag and when closing it,lower the flag.
not exactly, but you may be able to accomplish what you need by invoking Collectors.groupingBy()
. you create a new Collection, and can then instantiate streams on that new collection.
Quite an old article on mssqlcity attempts to explain the types of locks:
Shared locks are used for operations that do not change or update data, such as a SELECT statement.
Update locks are used when SQL Server intends to modify a page, and later promotes the update page lock to an exclusive page lock before actually making the changes.
Exclusive locks are used for the data modification operations, such as UPDATE, INSERT, or DELETE.
What it doesn't discuss are Intent (which basically is a modifier for these lock types). Intent (Shared/Exclusive) locks are locks held at a higher level than the real lock. So, for instance, if your transaction has an X lock on a row, it will also have an IX lock at the table level (which stops other transactions from attempting to obtain an incompatible lock at a higher level on the table (e.g. a schema modification lock) until your transaction completes or rolls back).
The concept of "sharing" a lock is quite straightforward - multiple transactions can have a Shared lock for the same resource, whereas only a single transaction may have an Exclusive lock, and an Exclusive lock precludes any transaction from obtaining or holding a Shared lock.
Try the following command sequence:
$ git fetch origin <copy/past commit sha1 here>
$ git checkout FETCH_HEAD
$ git push origin master
An extension to Joachim Isaksson's answer: Quite often I need something from the middle of a long file, e.g. lines 5001 to 5020, in which case you can combine head
with tail
:
head -5020 file.txt | tail -20 | grep x
This gets the first 5020 lines, then shows only the last 20 of those, then pipes everything to grep.
(Edited: fencepost error in my example numbers, added pipe to grep)
I found that switching to use full html instead of filtered html (below the editor in the Text Format dropdown box) is what fixed this problem for me. Otherwise the style would disappear.
Bootstrap: If you are using Bootstrap. This is a really good one: Select2
Also, TokenInput is an interesting one. First, it does not depend on jQuery-UI, second its config is very smooth.
The only issue I had it does not support free-tagging natively. So, I have to return the query-string back to client as a part of response JSON.
As @culithay mentioned in the comment, TokenInput supports a lot of features to customize. And highlight of some feature that the others don't have:
Thanks culithay for the input.
Just a quick little function I drummed up that moves DIVs from their current spot to a target spot, one pixel step at a time. I tried to comment as best as I could, but the part you're interested in, is in example 1 and example 2, right after [$(function() { // jquery document.ready]. Put your bounds checking code there, and then exit the interval if conditions are met. Requires jQuery.
First the Demo: http://jsfiddle.net/pnYWY/
First the DIVs...
<style>
.moveDiv {
position:absolute;
left:20px;
top:20px;
width:10px;
height:10px;
background-color:#ccc;
}
.moveDivB {
position:absolute;
left:20px;
top:20px;
width:10px;
height:10px;
background-color:#ccc;
}
</style>
<div class="moveDiv"></div>
<div class="moveDivB"></div>
example 1) Start
// first animation (fire right away)
var myVar = setInterval(function(){
$(function() { // jquery document.ready
// returns true if it just took a step
// returns false if the div has arrived
if( !move_div_step(55,25,'.moveDiv') )
{
// arrived...
console.log('arrived');
clearInterval(myVar);
}
});
},50); // set speed here in ms for your delay
example 2) Delayed Start
// pause and then fire an animation..
setTimeout(function(){
var myVarB = setInterval(function(){
$(function() { // jquery document.ready
// returns true if it just took a step
// returns false if the div has arrived
if( !move_div_step(25,55,'.moveDivB') )
{
// arrived...
console.log('arrived');
clearInterval(myVarB);
}
});
},50); // set speed here in ms for your delay
},5000);// set speed here for delay before firing
Now the Function:
function move_div_step(xx,yy,target) // takes one pixel step toward target
{
// using a line algorithm to move a div one step toward a given coordinate.
var div_target = $(target);
// get current x and current y
var x = div_target.position().left; // offset is relative to document; position() is relative to parent;
var y = div_target.position().top;
// if x and y are = to xx and yy (destination), then div has arrived at it's destination.
if(x == xx && y == yy)
return false;
// find the distances travelled
var dx = xx - x;
var dy = yy - y;
// preventing time travel
if(dx < 0) dx *= -1;
if(dy < 0) dy *= -1;
// determine speed of pixel travel...
var sx=1, sy=1;
if(dx > dy) sy = dy/dx;
else if(dy > dx) sx = dx/dy;
// find our one...
if(sx == sy) // both are one..
{
if(x <= xx) // are we going forwards?
{
x++; y++;
}
else // .. we are going backwards.
{
x--; y--;
}
}
else if(sx > sy) // x is the 1
{
if(x <= xx) // are we going forwards..?
x++;
else // or backwards?
x--;
y += sy;
}
else if(sy > sx) // y is the 1 (eg: for every 1 pixel step in the y dir, we take 0.xxx step in the x
{
if(y <= yy) // going forwards?
y++;
else // .. or backwards?
y--;
x += sx;
}
// move the div
div_target.css("left", x);
div_target.css("top", y);
return true;
} // END :: function move_div_step(xx,yy,target)
You can combine the register declaration with initialization.
reg [7:0] data_reg = 8'b10101011;
Or you can use an initial
block
reg [7:0] data_reg;
initial data_reg = 8'b10101011;
I use Eclipse and this broke during an update. Here's what worked for me as the answers above did not.
I checked where ant's build.xml expected to find zipalign.exe.
In: C:\Development\Android\android-sdk\tools\ant\build.xml
zipalign is defined as:
<property name="zipalign" location="${android.build.tools.dir}/zipalign${exe}" />
which indicates its expected in:
C:\Development\Android\android-sdk\build-tools\18.0.1
This directory corresponds to the highest version of the 'Android SDK Build-tools' displayed as installed in the 'Android SDK Manager'. So, that's where I copied zipalign.exe (which I obtained from an Android Studio installation!) and signed apps are now automatically zipaligned again!
Use this code, where li
is the LinearLayout
:
li.setBackgroundColor(Color.parseColor("#ffff00"));
Simply use https://www.npmjs.com/package/js-aid package for checking for the nested object.
You can enable SSL on XAMPP by creating self signed certificates and then installing those certificates. Type the below commands to generate and move the certificates to ssl folders.
openssl genrsa -des3 -out server.key 1024
openssl req -new -key server.key -out server.csr
cp server.key server.key.org
openssl rsa -in server.key.org -out server.key
openssl x509 -req -days 365 -in server.csr -signkey server.key -out server.crt
cp server.crt /opt/lampp/etc/ssl.crt/domainname.crt
cp server.key /opt/lampp/etc/ssl.key/domainname.key
(Use sudo with each command if you are not the super user)
Now, Check that mod_ssl is enabled in [XAMPP_HOME]/etc/httpd.conf:
LoadModule ssl_module modules/mod_ssl.so
Add a virtual host, in this example "localhost.domainname.com" by editing [XAMPP_HOME]/etc/extra/httpd-ssl.conf as follows:
<virtualhost 127.0.1.4:443>
ServerName localhost.domainname.com
ServerAlias localhost.domainname.com *.localhost.domainname.com
ServerAdmin admin@localhost
DocumentRoot "/opt/lampp/htdocs/"
DirectoryIndex index.php
ErrorLog /opt/lampp/logs/domainname.local.error.log
CustomLog /opt/lampp/logs/domainname.local.access.log combined
SSLEngine on
SSLCipherSuite ALL:!ADH:!EXPORT56:RC4+RSA:+HIGH:+MEDIUM:+LOW:+SSLv2:+EXP:+eNULL
SSLCertificateFile /opt/lampp/etc/ssl.crt/domainname.crt
SSLCertificateKeyFile /opt/lampp/etc/ssl.key/domainname.key
<directory /opt/lampp/htdocs/>
Options Indexes FollowSymLinks
AllowOverride All
Order allow,deny
Allow from all
</directory>
BrowserMatch ".*MSIE.*" nokeepalive ssl-unclean-shutdown downgrade-1.0 force-response-1.0
</virtualhost>
Add the following entry to /etc/hosts:
127.0.1.4 localhost.domainname.com
Now, try installing the certificate/ try importing certificate to browser. I have checked this and this worked on Ubuntu.
My descriptions for the three:
position: absolute
descendents)position: absolute
ones) without scrolling.Then there is also:
Additional note to the people thinking that an automatic one-time-only inclusion of header files is always desired: I build code generators using double or multiple inclusion of header files since decades. Especially for generation of protocol library stubs I find it very comfortable to have a extremely portable and powerful code generator with no additional tools and languages. I'm not the only developer using this scheme as this blogs X-Macros show. This wouldn't be possible to do without the missing automatic guarding.
I did this with anaconda navigator. I installed anaconda navigator and created two different development environments with different python versions
and switch between different python versions by switching or activating and deactivating environments.
first install anaconda navigator and then create environments.
see help here on how to manage environments
https://docs.anaconda.com/anaconda/navigator/tutorials/manage-environments/
Here is the video to do it with conda
Make sure all your links that you want to stop have href="#!"
(or anything you want, really), and then use this:
jq('body').on('click.stop_link', 'a[href="#!"]',
function(event) {
event.preventDefault();
});
request.getParameterValues("select2")
returns an array of all submitted values.
You could split things up, it would require more code but would work just the way you like it:
DateTime year = DateTime.Now.Year;
DateTime month = DateTime.Now.Month;
DateTime day = DateTime.Now.Day;
ect.
finally:
Console.WriteLine(year+month+day+etc.);
This is a very bold way of handling it though...
android developers documentation says : "Updated the AppCompatActivity as the base class for activities that use the support library action bar features. This class replaces the deprecated ActionBarActivity."
checkout changes for Android Support Library, revision 22.1.0 (April 2015)
Using the syntax text_element.selectionStart
we can get the starting position of the selection of a text in terms of the index of the first character of the selected text in the text_element.value
and in case we want to get the same of the last character in the selection we have to use text_element.selectionEnd
.
Use it as follows:
<input type=text id=t1 value=abcd>
<button onclick="alert(document.getElementById('t1').selectionStart)">check position</button>
I'm giving you the fiddle_demo
As stated already, running your code through the W3C Validator is great but if your page is complex, you still may not know exactly where to find the open div.
I like using tabs to indent my code. It keeps it visually organized so that these issues are easier to find, children, siblings, parents, etc... they'll appear more obvious.
EDIT: Also, I'll use a few HTML comments to mark closing tags in the complex areas. I keep these to a minimum for neatness.
<body>
<div>
Main Content
<div>
Div #1 content
<div>
Child of div #1
<div>
Child of child of div #1
</div><!--// close of child of child of div #1 //-->
</div><!--// close of child of div #1 //-->
</div><!--// close of div #1 //-->
<div>
Div #2 content
</div>
<div>
Div #3 content
</div>
</div><!--// close of Main Content div //-->
</body>
this will return first match
@fathers.detect {|f| f["age"] > 35 }
I find that running
export VIRTUALENVWRAPPER_PYTHON=/usr/bin/python3
and
export VIRTUALENVWRAPPER_VIRTUALENV=/usr/bin/virtualenv-3.4
in the command line on Ubuntu forces mkvirtualenv to use python3 and virtualenv-3.4. One still has to do
mkvirtualenv --python=/usr/bin/python3 nameOfEnvironment
to create the environment. This is assuming that you have python3 in /usr/bin/python3 and virtualenv-3.4 in /usr/local/bin/virtualenv-3.4.
This will do the trick
.gallery-item
{
opacity:1;
}
.gallery-item:hover
{
opacity:0;
transition: opacity .2s ease-out;
-moz-transition: opacity .2s ease-out;
-webkit-transition: opacity .2s ease-out;
-o-transition: opacity .2s ease-out;
}
Using Flexbox:
<style>
.container {
display: flex;
align-items: center; /* Vertical align */
justify-content: center; /* Horizontal align */
}
</style>
<div class="container">
<div class="block"></div>
</div>
Centers block
inside container
vertically (and horizontally).
Browser support: http://caniuse.com/flexbox
Though I am very late in this discussion, I thought this may be useful for some one in future.
I had faced similar situation. The easiest workaround for those who doesn't mind unsetting and resetting the variable is to do so. I am pretty sure the reason why this is not working is clear from the other answers and from the php.net manual. The simplest workaround worked for me is
Assumption:
$object
is the object with overloaded __get
and __set
from the base class, which I am not in the freedom to modify.shippingData
is the array I want to modify a field of for e.g. :- phone_number
// First store the array in a local variable.
$tempShippingData = $object->shippingData;
unset($object->shippingData);
$tempShippingData['phone_number'] = '888-666-0000' // what ever the value you want to set
$object->shippingData = $tempShippingData; // this will again call the __set and set the array variable
unset($tempShippingData);
Note: this solution is one of the quick workaround possible to solve the problem and get the variable copied. If the array is too humungous, it may be good to force rewrite the __get
method to return a reference rather expensive copying of big arrays.
after cloning the repo
cd /repo folder/
to go to the file directory then
ls -a
to see all files hidden and unhidden
.git .. .gitignore .etc
if you like you can check the repo origin
git remote -v
now delete .git which contains everything about git
rm -rf .git
after deleting, you would discover that there is no git linked check remote again
git remote -v
now you can init your repository with
git init
git add README.md
git commit -m "first commit"
git remote add origin https://github.com/Leonuch/flex.git
git push -u origin main
If NetBeans haven't created your dist
folder, execute the do-dist
ant target:
In commandline navigate to the directory of your project, the one containing a build.xml file
> ant do-dist
If ant runs fine (most likely), your dist
folder will be created, containing the .war
file.
find . > files_and_folders 2>&-
2>&-
closes (-
) the standard error file descriptor (2
) so all error messages are silenced.
1
if any 'Permission denied
' errors would otherwise be printedfind
:find . -type d \! \( -readable -executable \) -prune -print -o -print > files_and_folders
Pass extra options to find
that -prune
(prevent descending into) but still -print
any directory (-type
d
) that does not (\!
) have both -readable
and -executable
permissions, or (-o
) -print
any other file.
-readable
and -executable
options are GNU extensions, not part of the POSIX standardPermission denied
' on abnormal/corrupt files (e.g., see bug report affecting container-mounted filesystems using lxcfs
< v2.0.5)find
(GNU, OSX/BSD, etc){ LC_ALL=C find . 3>&2 2>&1 1>&3 > files_and_folders | grep -v 'Permission denied'; [ $? = 1 ]; } 3>&2 2>&1
Use a pipeline to pass the standard error stream to grep
, removing all lines containing the 'Permission denied'
string.
LC_ALL=C
sets the POSIX locale using an environment variable, 3>&2 2>&1 1>&3
and 3>&2 2>&1
duplicate file descriptors to pipe the standard-error stream to grep
, and [ $? = 1 ]
uses []
to invert the error code returned by grep
to approximate the original behavior of find
.
'Permission denied'
errors due to output redirection (e.g., if the files_and_folders
file itself is not writable)Null must not be set to string...
$this->db->where('archived IS NOT', null);
It works properly when null is not wrapped into quotes.
If Cells(1, 1).Formula gives a 1004 error, like in my case, changes it to:
Cells(1, 1).FormulaLocal
Another alternative:
var myInit = function () {
//...
};
angular.element(document).ready(myInit);
Checkout intent properties like no history , clear back stack etc ... Intent.setFlags
Intent mStartActivity = new Intent(HomeActivity.this, SplashScreen.class);
int mPendingIntentId = 123456;
PendingIntent mPendingIntent = PendingIntent.getActivity(HomeActivity.this, mPendingIntentId, mStartActivity,
PendingIntent.FLAG_CANCEL_CURRENT);
AlarmManager mgr = (AlarmManager) HomeActivity.this.getSystemService(Context.ALARM_SERVICE);
mgr.set(AlarmManager.RTC, System.currentTimeMillis() + 100, mPendingIntent);
System.exit(0);
SecretKeySpec
expects a key, not a password. See belowThe problem is number 1: you are passing the password instead of the key.
AES only supports key sizes of 16, 24 or 32 bytes. You either need to provide exactly that amount or you derive the key from what you type in.
There are different ways to derive the key from a passphrase. Java provides a PBKDF2 implementation for such a purpose.
I used erickson's answer to paint a complete picture (only encryption, since the decryption is similar, but includes splitting the ciphertext):
SecureRandom random = new SecureRandom();
byte[] salt = new byte[16];
random.nextBytes(salt);
KeySpec spec = new PBEKeySpec("password".toCharArray(), salt, 65536, 256); // AES-256
SecretKeyFactory f = SecretKeyFactory.getInstance("PBKDF2WithHmacSHA1");
byte[] key = f.generateSecret(spec).getEncoded();
SecretKeySpec keySpec = new SecretKeySpec(key, "AES");
byte[] ivBytes = new byte[16];
random.nextBytes(ivBytes);
IvParameterSpec iv = new IvParameterSpec(ivBytes);
Cipher c = Cipher.getInstance("AES/CBC/PKCS5Padding");
c.init(Cipher.ENCRYPT_MODE, keySpec, iv);
byte[] encValue = c.doFinal(valueToEnc.getBytes());
byte[] finalCiphertext = new byte[encValue.length+2*16];
System.arraycopy(ivBytes, 0, finalCiphertext, 0, 16);
System.arraycopy(salt, 0, finalCiphertext, 16, 16);
System.arraycopy(encValue, 0, finalCiphertext, 32, encValue.length);
return finalCiphertext;
Other things to keep in mind:
AES
is not appropriate in such a case, because different JVMs/JCE providers may use different defaults for mode of operation and padding. Use AES/CBC/PKCS5Padding
. Don't use ECB mode, because it is not semantically secure.cipherInstance.getIV()
.If you want to turn off the warnings about the specific strings, you can use the following:
strings.xml
<?xml version="1.0" encoding="utf-8"?>
<resources>
<!--suppress MissingTranslation -->
<string name="some_string">ignore my translation</string>
...
</resources>
If you want to warn on specific strings instead of an error, you will need to build a custom Lint rule to adjust the severity status for a specific thing.
redirect with query string
$('#results').on('click', '.item', function () {
var NestId = $(this).data('id');
// var url = '@Url.Action("Details", "Artists",new { NestId = '+NestId+' })';
var url = '@ Url.Content("~/Artists/Details?NestId =' + NestId + '")'
window.location.href = url;
})
Almost all major browsers now support the window.navigator.onLine
property, and the corresponding online
and offline
window events:
window.addEventListener('online', () => console.log('came online'));
window.addEventListener('offline', () => console.log('came offline'));
Try setting your system or browser in offline/online mode and check the console or the window.navigator.onLine
property for the value changes. You can test it on this website as well.
Note however this quote from Mozilla Documentation:
In Chrome and Safari, if the browser is not able to connect to a local area network (LAN) or a router, it is offline; all other conditions return
true
. So while you can assume that the browser is offline when it returns afalse
value, you cannot assume that atrue
value necessarily means that the browser can access the internet. You could be getting false positives, such as in cases where the computer is running a virtualization software that has virtual ethernet adapters that are always "connected." Therefore, if you really want to determine the online status of the browser, you should develop additional means for checking.In Firefox and Internet Explorer, switching the browser to offline mode sends a
false
value. Until Firefox 41, all other conditions return atrue
value; since Firefox 41, on OS X and Windows, the value will follow the actual network connectivity.
(emphasis is my own)
This means that if window.navigator.onLine
is false
(or you get an offline
event), you are guaranteed to have no Internet connection.
If it is true
however (or you get an online
event), it only means the system is connected to some network, at best. It does not mean that you have Internet access for example. To check that, you will still need to use one of the solutions described in the other answers.
I initially intended to post this as an update to Grant Wagner's answer, but it seemed too much of an edit, especially considering that the 2014 update was already not from him.
Nobody has mentioned the index order to access the elements of the initialized array. My example code will give an illustrative example to it.
#include <iostream>
void PrintArray(int a[3][3])
{
std::cout << "a11 = " << a[0][0] << "\t\t" << "a12 = " << a[0][1] << "\t\t" << "a13 = " << a[0][2] << std::endl;
std::cout << "a21 = " << a[1][0] << "\t\t" << "a22 = " << a[1][1] << "\t\t" << "a23 = " << a[1][2] << std::endl;
std::cout << "a31 = " << a[2][0] << "\t\t" << "a32 = " << a[2][1] << "\t\t" << "a33 = " << a[2][2] << std::endl;
std::cout << std::endl;
}
int wmain(int argc, wchar_t * argv[])
{
int a1[3][3] = { 11, 12, 13, // The most
21, 22, 23, // basic
31, 32, 33 }; // format.
int a2[][3] = { 11, 12, 13, // The first (outer) dimension
21, 22, 23, // may be omitted. The compiler
31, 32, 33 }; // will automatically deduce it.
int a3[3][3] = { {11, 12, 13}, // The elements of each
{21, 22, 23}, // second (inner) dimension
{31, 32, 33} }; // can be grouped together.
int a4[][3] = { {11, 12, 13}, // Again, the first dimension
{21, 22, 23}, // can be omitted when the
{31, 32, 33} }; // inner elements are grouped.
PrintArray(a1);
PrintArray(a2);
PrintArray(a3);
PrintArray(a4);
// This part shows in which order the elements are stored in the memory.
int * b = (int *) a1; // The output is the same for the all four arrays.
for (int i=0; i<9; i++)
{
std::cout << b[i] << '\t';
}
return 0;
}
The output is:
a11 = 11 a12 = 12 a13 = 13
a21 = 21 a22 = 22 a23 = 23
a31 = 31 a32 = 32 a33 = 33
a11 = 11 a12 = 12 a13 = 13
a21 = 21 a22 = 22 a23 = 23
a31 = 31 a32 = 32 a33 = 33
a11 = 11 a12 = 12 a13 = 13
a21 = 21 a22 = 22 a23 = 23
a31 = 31 a32 = 32 a33 = 33
a11 = 11 a12 = 12 a13 = 13
a21 = 21 a22 = 22 a23 = 23
a31 = 31 a32 = 32 a33 = 33
11 12 13 21 22 23 31 32 33
METHOD 1: I deleted the androidTestCompile on espresso-core line which was automatically included in a new project. Then my Android Studio compiles clean.
The androidTestCompile is in "build.gradle (Module:app)":
dependencies {
...
androidTestCompile('com.android.support.test.espresso:espresso-core:2.2.2', {
exclude group: 'com.android.support', module: 'support-annotations'
})
...
}
I don't know whether this deletion will have any problem down the road, but it surely works for my current project now.
METHOD 2: Adding an exclude on findbugs works too:
dependencies {
...
androidTestCompile('com.android.support.test.espresso:espresso-core:2.2.2', {
exclude group: 'com.android.support', module: 'support-annotations'
exclude group: 'com.google.code.findbugs'
})
...
}
METHOD 3: Forcing compiling with a specific version:
(In the following I force it to compile with the higher version.)
dependencies {
...
androidTestCompile 'com.google.code.findbugs:jsr305:3.0.0'
...
}
This post has helped me a lot, and after a few iterations, this is what we use.
The idea is to post log messages and errors to HTML, for example if you need to debug JS and don't have access to the console.
You do need to change 'console.log' with 'logThis', as it is not recommended to change native functionality.
What you'll get:
function logThis(message) {
// if we pass an Error object, message.stack will have all the details, otherwise give us a string
if (typeof message === 'object') {
message = message.stack || objToString(message);
}
console.log(message);
// create the message line with current time
var today = new Date();
var date = today.getFullYear() + '-' + (today.getMonth() + 1) + '-' + today.getDate();
var time = today.getHours() + ':' + today.getMinutes() + ':' + today.getSeconds();
var dateTime = date + ' ' + time + ' ';
//insert line
document.getElementById('logger').insertAdjacentHTML('afterbegin', dateTime + message + '<br>');
}
function objToString(obj) {
var str = 'Object: ';
for (var p in obj) {
if (obj.hasOwnProperty(p)) {
str += p + '::' + obj[p] + ',\n';
}
}
return str;
}
const object1 = {
a: 'somestring',
b: 42,
c: false
};
logThis(object1)
logThis('And all the roads we have to walk are winding, And all the lights that lead us there are blinding')
_x000D_
#logWindow {
overflow: auto;
position: absolute;
width: 90%;
height: 90%;
top: 5%;
left: 5%;
right: 5%;
bottom: 5%;
background-color: rgba(0, 0, 0, 0.5);
z-index: 20;
}
_x000D_
<div id="logWindow">
<pre id="logger"></pre>
</div>
_x000D_
Thanks this answer too, JSON.stringify() didn't work for this.
I am working on Win 8, use this code. It works for IE and FF, Opera, etc. What I understood are : woff font is light et common on Google fonts.
Go here to convert your ttf font to woff before.
@font-face
{
font-family:'Open Sans';
src:url('OpenSans-Regular.woff');
}
That was simple for me!
Try to run the XAMPP Control Panel as administrator.
I am assuming that you have enough permissions to create this directory.
To fix your problem, you can either ssh to some other location:
ssh [email protected]
and accept new key - it will create directory ~/.ssh
and known_hosts
underneath, or simply create it manually using
mkdir ~/.ssh
chmod 700 ~/.ssh
Note that chmod 700
is an important step!
After that, ssh-keygen should work without complaints.
I had this problem even though my source directory was in the correct build context. Found the reason was that my source directory was a symbolic link to a location outside the build context.
For example my Dockerfile contains the following:
COPY dir1 /tmp
If dir1
is a symbolic link the COPY
command is not working in my case.
Simply, @Id: This annotation specifies the primary key of the entity.
@GeneratedValue: This annotation is used to specify the primary key generation strategy to use. i.e Instructs database to generate a value for this field automatically. If the strategy is not specified by default AUTO will be used.
GenerationType enum defines four strategies:
1. Generation Type . TABLE,
2. Generation Type. SEQUENCE,
3. Generation Type. IDENTITY
4. Generation Type. AUTO
GenerationType.SEQUENCE
With this strategy, underlying persistence provider must use a database sequence to get the next unique primary key for the entities.
GenerationType.TABLE
With this strategy, underlying persistence provider must use a database table to generate/keep the next unique primary key for the entities.
GenerationType.IDENTITY
This GenerationType indicates that the persistence provider must assign primary keys for the entity using a database identity column. IDENTITY column is typically used in SQL Server. This special type column is populated internally by the table itself without using a separate sequence. If underlying database doesn't support IDENTITY column or some similar variant then the persistence provider can choose an alternative appropriate strategy. In this examples we are using H2 database which doesn't support IDENTITY column.
GenerationType.AUTO
This GenerationType indicates that the persistence provider should automatically pick an appropriate strategy for the particular database. This is the default GenerationType, i.e. if we just use @GeneratedValue annotation then this value of GenerationType will be used.
Reference:- https://www.logicbig.com/tutorials/java-ee-tutorial/jpa/jpa-primary-key.html
Or in XML:
android:divider="@drawable/list_item_divider"
android:dividerHeight="1dp"
You can use a color for the drawable (e.g. #ff112233), but be aware, that pre-cupcake releases have a bug in which the color cannot be set. Instead a 9-patch or a image must be used..
You can now use Object.assign(target, ...sources)
. Following your example, you could use it like this:
class Foo {
name: string;
getName(): string { return this.name };
}
let fooJson: string = '{"name": "John Doe"}';
let foo: Foo = Object.assign(new Foo(), JSON.parse(fooJson));
console.log(foo.getName()); //returns John Doe
Object.assign
is part of ECMAScript 2015 and is currently available in most modern browsers.
Is this what you are trying?
Option Explicit
Public Sub SaveWorksheetsAsCsv()
Dim WS As Worksheet
Dim SaveToDirectory As String, newName As String
SaveToDirectory = "H:\test\"
For Each WS In ThisWorkbook.Worksheets
newName = GetBookName(ThisWorkbook.Name) & "_" & WS.Name
WS.Copy
ActiveWorkbook.SaveAs SaveToDirectory & newName, xlCSV
ActiveWorkbook.Close Savechanges:=False
Next
End Sub
Function GetBookName(strwb As String) As String
GetBookName = Left(strwb, (InStrRev(strwb, ".", -1, vbTextCompare) - 1))
End Function
I think I will go for the duck typing approach - "if it walks like a duck, it quacks like a duck, its a duck". This way you will need not worry about if the string is a unicode or ascii.
Here is what I will do:
In [53]: s='somestring'
In [54]: u=u'someunicodestring'
In [55]: d={}
In [56]: for each in s,u,d:
if hasattr(each, 'keys'):
print list(set(each.values()))
elif hasattr(each, 'lower'):
print [each]
else:
print "error"
....:
....:
['somestring']
[u'someunicodestring']
[]
The experts here are welcome to comment on this type of usage of ducktyping, I have been using it but got introduced to the exact concept behind it lately and am very excited about it. So I would like to know if thats an overkill to do.
protected string StripHtml(string Txt)
{
return Regex.Replace(Txt, "<(.|\\n)*?>", string.Empty);
}
Protected Function StripHtml(Txt as String) as String
Return Regex.Replace(Txt, "<(.|\n)*?>", String.Empty)
End Function
If anyone wants to "Increase the column width of the replicated table" in SQL Server 2008, then no need to change the property of "replicate_ddl=1
". Simply follow below steps --
ALTER TABLE [Table_Name] ALTER COLUMN [Column_Name] varchar(22)
varchar(x)
to varchar(22)
and same change you can see on subscriber (transaction got replicated). So no need to re-initialize the replicationHope this will help all who are looking for it.
I know this is an old post but couldn't you just use <div id=xyz align="right">
for right.
You can just replace right with left, center and justify.
Worked on my site:)
=============UPDATE=============
Since Android Studio introduce a new build system: Gradle. Android developers can now use a simple, declarative DSL to have access to a single, authoritative build that powers both the Android Studio IDE and builds from the command-line.
Edit your build.gradle
like this:
apply plugin: 'android'
android {
compileSdkVersion 19
buildToolsVersion "19.0.3"
defaultConfig {
minSdkVersion 18
targetSdkVersion 19
versionCode 1
versionName "1.0"
}
buildTypes {
release {
runProguard false
proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.txt'
}
}
dependencies {
compile fileTree(dir: 'libs', include: ['*.jar'])
compile 'com.android.support:support-v4:21.+'
}
NOTES: Use + in compile 'com.android.support:support-v4:21.+'
so that gradle can always use the newest version.
==========DEPRECATED==========
Because Android Studio is based on IntelliJ IDEA, so the procedure is just same like on IntelliJ IDEA 12 CE
1.Open Project Structure (Press F4 on PC and Command+; on MAC) on your project).
2.Select Modules on the left pane.
3.Choose your project and you will see Dependencies TAB above the third Column.
4.Click on the plus sign in the bottom. Then a tree-based directory chooser dialog will pop up, navigate to your folder containing android-support-v4.jar, press OK.
5.Press OK.
Use nssm.exe but remember to set the AppDirectory or any required libraries or resources will not be accessible. By default nssm set the current working directory to the that of the application, java.exe, not the jar. So do this to create a batch script:
pushd <path-to-jar>
nssm.exe install "<service-name>" "<path-to-java.exe>" "-jar <name-of-jar>"
nssm.exe set "<service-name>" AppDirectory "<path-to-jar>"
This should fix the service paused issue.
Try to split the characters into multiple chunks like the query below and try:
Insert into table (clob_column) values ( to_clob( 'chunk 1' ) || to_clob( 'chunk 2' ) );
It worked for me.
You can find your Arduino via Terminal with
ls /dev/tty.*
then you can read that serial port using the screen command, like this
screen /dev/tty.[yourSerialPortName] [yourBaudRate]
for example:
screen /dev/tty.usbserial-A6004byf 9600
you can also use gcc -v
command that works like gcc --version
and if you would like to now where gcc
is you can use whereis gcc
command
I hope it'll be usefull
By the way, you can use serialization technology to send strings, numbers or any objects which are support serialization (most of .NET data-storing classes & structs are [Serializable]). There, you should at first send Int32-length in four bytes to the stream and then send binary-serialized (System.Runtime.Serialization.Formatters.Binary.BinaryFormatter) data into it.
On the other side or the connection (on both sides actually) you definetly should have a byte[] buffer which u will append and trim-left at runtime when data is coming.
Something like that I am using:
namespace System.Net.Sockets
{
public class TcpConnection : IDisposable
{
public event EvHandler<TcpConnection, DataArrivedEventArgs> DataArrive = delegate { };
public event EvHandler<TcpConnection> Drop = delegate { };
private const int IntSize = 4;
private const int BufferSize = 8 * 1024;
private static readonly SynchronizationContext _syncContext = SynchronizationContext.Current;
private readonly TcpClient _tcpClient;
private readonly object _droppedRoot = new object();
private bool _dropped;
private byte[] _incomingData = new byte[0];
private Nullable<int> _objectDataLength;
public TcpClient TcpClient { get { return _tcpClient; } }
public bool Dropped { get { return _dropped; } }
private void DropConnection()
{
lock (_droppedRoot)
{
if (Dropped)
return;
_dropped = true;
}
_tcpClient.Close();
_syncContext.Post(delegate { Drop(this); }, null);
}
public void SendData(PCmds pCmd) { SendDataInternal(new object[] { pCmd }); }
public void SendData(PCmds pCmd, object[] datas)
{
datas.ThrowIfNull();
SendDataInternal(new object[] { pCmd }.Append(datas));
}
private void SendDataInternal(object data)
{
if (Dropped)
return;
byte[] bytedata;
using (MemoryStream ms = new MemoryStream())
{
BinaryFormatter bf = new BinaryFormatter();
try { bf.Serialize(ms, data); }
catch { return; }
bytedata = ms.ToArray();
}
try
{
lock (_tcpClient)
{
TcpClient.Client.BeginSend(BitConverter.GetBytes(bytedata.Length), 0, IntSize, SocketFlags.None, EndSend, null);
TcpClient.Client.BeginSend(bytedata, 0, bytedata.Length, SocketFlags.None, EndSend, null);
}
}
catch { DropConnection(); }
}
private void EndSend(IAsyncResult ar)
{
try { TcpClient.Client.EndSend(ar); }
catch { }
}
public TcpConnection(TcpClient tcpClient)
{
_tcpClient = tcpClient;
StartReceive();
}
private void StartReceive()
{
byte[] buffer = new byte[BufferSize];
try
{
_tcpClient.Client.BeginReceive(buffer, 0, buffer.Length, SocketFlags.None, DataReceived, buffer);
}
catch { DropConnection(); }
}
private void DataReceived(IAsyncResult ar)
{
if (Dropped)
return;
int dataRead;
try { dataRead = TcpClient.Client.EndReceive(ar); }
catch
{
DropConnection();
return;
}
if (dataRead == 0)
{
DropConnection();
return;
}
byte[] byteData = ar.AsyncState as byte[];
_incomingData = _incomingData.Append(byteData.Take(dataRead).ToArray());
bool exitWhile = false;
while (exitWhile)
{
exitWhile = true;
if (_objectDataLength.HasValue)
{
if (_incomingData.Length >= _objectDataLength.Value)
{
object data;
BinaryFormatter bf = new BinaryFormatter();
using (MemoryStream ms = new MemoryStream(_incomingData, 0, _objectDataLength.Value))
try { data = bf.Deserialize(ms); }
catch
{
SendData(PCmds.Disconnect);
DropConnection();
return;
}
_syncContext.Post(delegate(object T)
{
try { DataArrive(this, new DataArrivedEventArgs(T)); }
catch { DropConnection(); }
}, data);
_incomingData = _incomingData.TrimLeft(_objectDataLength.Value);
_objectDataLength = null;
exitWhile = false;
}
}
else
if (_incomingData.Length >= IntSize)
{
_objectDataLength = BitConverter.ToInt32(_incomingData.TakeLeft(IntSize), 0);
_incomingData = _incomingData.TrimLeft(IntSize);
exitWhile = false;
}
}
StartReceive();
}
public void Dispose() { DropConnection(); }
}
}
That is just an example, you should edit it for your use.
It is as simple as string[:2]
. A function can be easily written to do it, if you need.
Even this, is as simple as
def first2(s):
return s[:2]
On Arch Linux run the following:
sudo pacman -S base-devel
You can have it on github using the command
git clone https://github.com/coreutils/coreutils.git
You can find all the source codes in the src folder.
You need to have git installed.
Things have changed since 2012, ls
source code has now 5309 lines
Use the following methods on HttpServletRequest object
java.lang.String getRequestURI() -Returns the part of this request's URL from the protocol name up to the query string in the first line of the HTTP request.
java.lang.StringBuffer getRequestURL() -Reconstructs the URL the client used to make the request.
java.lang.String getQueryString() -Returns the query string that is contained in the request URL after the path.
There are a few ways to accomplish that:
# Rename the local branch to the new name
git branch -m <old_name> <new_name>
# Delete the old branch on remote - where <remote> is, for example, origin
git push <remote> --delete <old_name>
# Or shorter way to delete remote branch [:]
git push <remote> :<old_name>
# Prevent git from using the old name when pushing in the next step.
# Otherwise, git will use the old upstream name instead of <new_name>.
git branch --unset-upstream <old_name>
# Push the new branch to remote
git push <remote> <new_name>
# Reset the upstream branch for the new_name local branch
git push <remote> -u <new_name>
Credit: ptim
# In this option, we will push the branch to the remote with the new name
# While keeping the local name as is
git push <remote> <remote>/<old_name>:refs/heads/<new_name> :<old_name>
When you use the git branch -m
(move), Git is also updating your tracking branch with the new name.
git remote rename legacy legacy
git remote rename
is trying to update your remote section in your configuration file. It will rename the remote with the given name to the new name, but in your case, it did not find any, so the renaming failed.
But it will not do what you think; it will rename your local configuration remote name and not the remote branch.
Note Git servers might allow you to rename Git branches using the web interface or external programs (like Sourcetree, etc.), but you have to keep in mind that in Git all the work is done locally, so it's recommended to use the above commands to the work.
There is a difference in the * usage when you are defining a variable and when you are using it.
In declaration,
int *myVariable;
Means a pointer to an integer data type. In usage however,
*myVariable = 3;
Means dereference the pointer and make the structure it is pointing at equal to three, rather then make the pointer equal to the memory address 0x 0003.
So in your function, you want to do this:
void makePointerEqualSomething(int* pInteger)
{
*pInteger = 7;
}
In the function declaration, * means you are passing a pointer, but in its actual code body * means you are accessing what the pointer is pointing at.
In an attempt to wave away any confusion you have, I'll briefly go into the ampersand (&)
& means get the address of something, its exact location in the computers memory, so
int & myVariable;
In a declaration means the address of an integer, or a pointer!
This however
int someData;
pInteger = &someData;
Means make the pInteger pointer itself (remember, pointers are just memory addresses of what they point at) equal to the address of 'someData' - so now pInteger will point at some data, and can be used to access it when you deference it:
*pInteger += 9000;
Does this make sense to you? Is there anything else that you find confusing?
@Edit3:
Nearly correct, except for three statements
bar = *oof;
means that the bar pointer is equal to an integer, not what bar points at, which is invalid.
&bar = &oof;
The ampersand is like a function, once it returns a memory address you cannot modify where it came from. Just like this code:
returnThisInt("72") = 86;
Is invalid, so is yours.
Finally,
bar = oof
Does not mean that "bar points to the oof pointer." Rather, this means that bar points to the address that oof points to, so bar points to whatever foo is pointing at - not bar points to foo which points to oof.
You have a orWhereIn
function in Laravel. It takes the same parameters as the whereIn
function.
It's not in the documentation but you can find it in the laravel API. http://laravel.com/api/4.1/
That should give you this:
$query-> orWhereIn('products.value', $f);
This seems to work for me:
<html>
<head>
<script type="text/javascript" src="http://www.google.com/jsapi"></script>
<script type="text/javascript">
// has the google object loaded?
if (window.google && window.google.load) {
google.load("jquery", "1.3.2");
} else {
document.write('<script type="text/javascript" src="http://joecrawford.com/jquery-1.3.2.min.js"><\/script>');
}
window.onload = function() {
$('#test').css({'border':'2px solid #f00'});
};
</script>
</head>
<body>
<p id="test">hello jQuery</p>
</body>
</html>
The way it works is to use the google
object that calling http://www.google.com/jsapi loads onto the window
object. If that object is not present, we are assuming that access to Google is failing. If that is the case, we load a local copy using document.write
. (I'm using my own server in this case, please use your own for testing this).
I also test for the presence of window.google.load
- I could also do a typeof
check to see that things are objects or functions as appropriate. But I think this does the trick.
Here's just the loading logic, since code highlighting seems to fail since I posted the whole HTML page I was testing:
if (window.google && window.google.load) {
google.load("jquery", "1.3.2");
} else {
document.write('<script type="text/javascript" src="http://joecrawford.com/jquery-1.3.2.min.js"><\/script>');
}
Though I must say, I'm not sure that if this is a concern for your site visitors you should be fiddling with the Google AJAX Libraries API at all.
Fun fact: I tried initially to use a try..catch block for this in various versions but could not find a combination that was as clean as this. I'd be interested to see other implementations of this idea, purely as an exercise.
I was fighting with this a whole day asking my users to run debug versions of the software. Because it looked like it didn't run the first line. Just a crash without information.
Then I realized that the error was inside the form's InitializeComponent.
The way to get an exception was to remove this line (or comment it out):
System.Diagnostics.DebuggerStepThrough()
Once you get rid of the line, you'll get a normal exception.
Sometimes there is problem with php version. We need to change php version from server. Just write down below string in .htaccess file:
AddHandler application/x-httpd-php5 .php
jcollado's answer can be simplified using the threading.Timer class:
import shlex
from subprocess import Popen, PIPE
from threading import Timer
def run(cmd, timeout_sec):
proc = Popen(shlex.split(cmd), stdout=PIPE, stderr=PIPE)
timer = Timer(timeout_sec, proc.kill)
try:
timer.start()
stdout, stderr = proc.communicate()
finally:
timer.cancel()
# Examples: both take 1 second
run("sleep 1", 5) # process ends normally at 1 second
run("sleep 5", 1) # timeout happens at 1 second
To remove all array elements irrespective of any given id, use this:
collection.update(
{ },
{ $pull: { 'contact.phone': { number: '+1786543589455' } } }
);
I'm going to provide a functional (immutable) way of doing it.
The standard and easy way of doing it is to use slicing:
index_to_remove = 3
data = [*range(5)]
new_data = data[:index_to_remove] + data[index_to_remove + 1:]
print(f"data: {data}, new_data: {new_data}")
Output:
data: [0, 1, 2, 3, 4], new_data: [0, 1, 2, 4]
Use list comprehension:
data = [*range(5)]
new_data = [v for i, v in enumerate(data) if i != index_to_remove]
print(f"data: {data}, new_data: {new_data}")
Output:
data: [0, 1, 2, 3, 4], new_data: [0, 1, 2, 4]
Use filter function:
index_to_remove = 3
data = [*range(5)]
new_data = [*filter(lambda i: i != index_to_remove, data)]
Output:
data: [0, 1, 2, 3, 4], new_data: [0, 1, 2, 4]
Using masking. Masking is provided by itertools.compress function in the standard library:
from itertools import compress
index_to_remove = 3
data = [*range(5)]
mask = [1] * len(data)
mask[index_to_remove] = 0
new_data = [*compress(data, mask)]
print(f"data: {data}, mask: {mask}, new_data: {new_data}")
Output:
data: [0, 1, 2, 3, 4], mask: [1, 1, 1, 0, 1], new_data: [0, 1, 2, 4]
Use itertools.filterfalse function from Python standard library
from itertools import filterfalse
index_to_remove = 3
data = [*range(5)]
new_data = [*filterfalse(lambda i: i == index_to_remove, data)]
print(f"data: {data}, new_data: {new_data}")
Output:
data: [0, 1, 2, 3, 4], new_data: [0, 1, 2, 4]
This saves you having to duplicate the link in the tr - just fish it out of the first a.
$(".link-first-found").click(function() {
var href;
href = $(this).find("a").attr("href");
if (href !== "") {
return document.location = href;
}
});
What exactly is OAuth (Open Authorization)?
OAuth allows notifying a resource provider (e.g. Facebook) that the resource owner (e.g. you) grants permission to a third-party (e.g. a Facebook Application) access to their information (e.g. the list of your friends).
If you read it stated as plainly, I would understand your confusion. So let's go with a concrete example: joining yet another social network!
Say you have an existing GMail account. You decide to join LinkedIn. Adding all of your many, many friends manually is tiresome and error-prone. You might get fed up half-way or insert typos in their e-mail address for invitation. So you might be tempted not to create an account after all.
Facing this situation, LinkedIn has the Good Idea(TM) to write a program that adds your list of friends automatically because computers are far more efficient and effective at tiresome and error prone tasks. Since joining the network is now so easy, there is no way you would refuse such an offer, now would you?
Without an API for exchanging this list of contacts, you would have to give LinkedIn the username and password to your GMail account, thereby giving them too much power.
This is where OAuth comes in. If your GMail supports the OAuth protocol, then LinkedIn can ask you to authorize them to access your GMail list of contacts.
OAuth allows for:
Will it become a de facto (standard?) in near future?
Well, although OAuth is a significant step forward, it doesn't solve problems if people don't use it correctly. For instance, if a resource provider gives only a single read-write access level to all your resources at once and doesn't provide mechanism for managing access, then there is no point to it. In other words, OAuth is a framework to provide authorization functionality and not just authentication.
In practice, it fits the social network model very well. It is especially popular for those social networks that want to allow third-party "plugins". This is an area where access to the resources is inherently necessary and is also inherently unreliable (i.e. you have little or no quality control over those applications).
I haven't seen so many other uses out in the wild. I mean, I don't know of an online financial advice firm that will access your bank records automatically, although it could technically be used that way.
The Void class is an uninstantiable placeholder class to hold a reference to the Class object representing the Java keyword void.
So any of the following would suffice:
Object
and returning new Object()
or null
Void
and returning null
NullObject
of yoursYou can't make this method void
, and anything else returns something. Since that something is ignored, you can return anything.
in the folder where the build.xml resides run command only -
ant
and not the command - `
ant build.xml
`
. if you are using the ant file as build xml then the below steps helps you Steps : open cmd Prompt >> switch to the project location >>type ant and click enter key
None of these worked for me. I'm using Mac OS 10.10.5 and Workbench 6.3. What worked for me is Database->Migration Wizard... Flow the steps very carefully
I'm not 100% on why (actually came here to search for the answer), but this also works, and doesn't require replacing all nan values.
import pandas as pd
import numpy as np
df = pd.DataFrame([["foo1"], ["foo2"], ["bar"], [np.nan]], columns=['a'])
newdf = df.loc[df['a'].str.contains('foo') == True]
Works with or without .loc
.
I have no idea why this works, as I understand it when you're indexing with brackets pandas evaluates whatever's inside the bracket as either True
or False
. I can't tell why making the phrase inside the brackets 'extra boolean' has any effect at all.
There are several possible answers here. You want to return something that might exist. Here are some options, ranging from my least preferred to most preferred:
Return by reference, and signal can-not-find by exception.
Attr& getAttribute(const string& attribute_name) const
{
//search collection
//if found at i
return attributes[i];
//if not found
throw no_such_attribute_error;
}
It's likely that not finding attributes is a normal part of execution, and hence not very exceptional. The handling for this would be noisy. A null value cannot be returned because it's undefined behaviour to have null references.
Return by pointer
Attr* getAttribute(const string& attribute_name) const
{
//search collection
//if found at i
return &attributes[i];
//if not found
return nullptr;
}
It's easy to forget to check whether a result from getAttribute would be a non-NULL pointer, and is an easy source of bugs.
Use Boost.Optional
boost::optional<Attr&> getAttribute(const string& attribute_name) const
{
//search collection
//if found at i
return attributes[i];
//if not found
return boost::optional<Attr&>();
}
A boost::optional signifies exactly what is going on here, and has easy methods for inspecting whether such an attribute was found.
Side note: std::optional was recently voted into C++17, so this will be a "standard" thing in the near future.
Have a look at this excellent article at CSS-Tricks:
Taken from the article:
The final unit of measurement that it is possible to declare font sizes in is point values (pt). Point values are only for print CSS! A point is a unit of measurement used for real-life ink-on-paper typography. 72pts = one inch. One inch = one real-life inch like-on-a-ruler. Not an inch on a screen, which is totally arbitrary based on resolution.
Just like how pixels are dead-accurate on monitors for font-sizing, point sizes are dead-accurate on paper. For the best cross-browser and cross-platform results while printing pages, set up a print stylesheet and size all fonts with point sizes.
For good measure, the reason we don't use point sizes for screen display (other than it being absurd), is that the cross-browser results are drastically different:
If you need fine-grained control, sizing fonts in pixel values (px) is an excellent choice (it's my favorite). On a computer screen, it doesn't get any more accurate than a single pixel. With sizing fonts in pixels, you are literally telling browsers to render the letters exactly that number of pixels in height:
Windows, Mac, aliased, anti-aliased, cross-browsers, doesn't matter, a font set at 14px will be 14px tall. But that isn't to say there won't still be some variation. In a quick test below, the results were slightly more consistent than with keywords but not identical:
Due to the nature of pixel values, they do not cascade. If a parent element has an 18px pixel size and the child is 16px, the child will be 16px. However, font-sizing settings can be using in combination. For example, if the parent was set to 16px and the child was set to larger, the child would indeed come out larger than the parent. A quick test showed me this:
"Larger" bumped the 16px of the parent into 20px, a 25% increase.
Pixels have gotten a bad wrap in the past for accessibility and usability concerns. In IE 6 and below, font-sizes set in pixels cannot be resized by the user. That means that us hip young healthy designers can set type in 12px and read it on the screen just fine, but when folks a little longer in the tooth go to bump up the size so they can read it, they are unable to. This is really IE 6's fault, not ours, but we gots what we gots and we have to deal with it.
Setting font-size in pixels is the most accurate (and I find the most satisfying) method, but do take into consideration the number of visitors still using IE 6 on your site and their accessibility needs. We are right on the bleeding edge of not needing to care about this anymore.
To get the bottom 1000 you will want to order it by a column in descending order, and still take the top 1000.
SELECT TOP 1000 *
FROM [SomeTable]
ORDER BY MySortColumn DESC
If you care for it to be in the same order as before you can use a common table expression for that:
;WITH CTE AS (
SELECT TOP 1000 *
FROM [SomeTable]
ORDER BY MySortColumn DESC
)
SELECT *
FROM CTE
ORDER BY MySortColumn
With jQuery 1.6 version you can use the .promise()
method.
$(selector).fadeOut('slow');
$(selector).promise().done(function(){
// will be called when all the animations on the queue finish
});
Have you tried simply 'reboot' with adb?
adb reboot
Also you can run complete shell scripts (e.g. to reboot your emulator) via adb:
adb shell <command>
The official docs can be found here.
To center a view in Framelayout, there are some available tricks. The simplest one I used for my Webview and Progressbar(very similar to your two object layout), I just added android:layout_gravity="center"
Here is complete XML in case if someone else needs the same thing to do
<?xml version="1.0" encoding="utf-8"?>
<FrameLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="match_parent"
tools:context=".WebviewPDFActivity"
android:layout_gravity="center"
>
<WebView
android:id="@+id/webView1"
android:layout_width="match_parent"
android:layout_height="match_parent"
/>
<ProgressBar
android:id="@+id/progress_circular"
android:layout_width="250dp"
android:layout_height="250dp"
android:visibility="visible"
android:layout_gravity="center"
/>
</FrameLayout>
Here is my output
date
as background dedicated processIn order to make this kind of translation a lot quicker...
In this post, you will find
bc
, rot13
, sed
...).fifo=$HOME/.fifoDate-$$
mkfifo $fifo
exec 5> >(exec stdbuf -o0 date -f - +%s >$fifo 2>&1)
echo now 1>&5
exec 6< $fifo
rm $fifo
read -t 1 -u 6 now
echo $now
This must output current UNIXTIME. From there, you could compare
time for i in {1..5000};do echo >&5 "now" ; read -t 1 -u6 ans;done
real 0m0.298s
user 0m0.132s
sys 0m0.096s
and:
time for i in {1..5000};do ans=$(date +%s -d "now");done
real 0m6.826s
user 0m0.256s
sys 0m1.364s
From more than 6 seconds to less than a half second!!(on my host).
You could check echo $ans
, replace "now"
by "2019-25-12 20:10:00"
and so on...
Optionaly, you could, once requirement of date subprocess ended:
exec 5>&- ; exec 6<&-
Instead of running 1 fork by date to convert, run date
just 1 time and do all convertion with same process (this could become a lot quicker)!:
date -f - +%s <<eof
Apr 17 2014
May 21 2012
Mar 8 00:07
Feb 11 00:09
eof
1397685600
1337551200
1520464020
1518304140
Sample:
start1=$(LANG=C ps ho lstart 1)
start2=$(LANG=C ps ho lstart $$)
dirchg=$(LANG=C date -r .)
read -p "A date: " userdate
{ read start1 ; read start2 ; read dirchg ; read userdate ;} < <(
date -f - +%s <<<"$start1"$'\n'"$start2"$'\n'"$dirchg"$'\n'"$userdate" )
Then now have a look:
declare -p start1 start2 dirchg userdate
(may answer something like:
declare -- start1="1518549549" declare -- start2="1520183716" declare -- dirchg="1520601919" declare -- userdate="1397685600"
This was done in one execution!
We just need one fifo:
mkfifo /tmp/myDateFifo
exec 7> >(exec stdbuf -o0 /bin/date -f - +%s >/tmp/myDateFifo)
exec 8</tmp/myDateFifo
rm /tmp/myDateFifo
(Note: As process is running and all descriptors are opened, we could safely remove fifo's filesystem entry.)
Then now:
LANG=C ps ho lstart 1 $$ >&7
read -u 8 start1
read -u 8 start2
LANG=C date -r . >&7
read -u 8 dirchg
read -p "Some date: " userdate
echo >&7 $userdate
read -u 8 userdate
We could buid a little function:
mydate() {
local var=$1;
shift;
echo >&7 $@
read -u 8 $var
}
mydate start1 $(LANG=C ps ho lstart 1)
echo $start1
newConnector
functionWith functions for connecting MySQL/MariaDB
, PostgreSQL
and SQLite
...
You may find them in different version on GitHub, or on my site: download or show.
wget https://raw.githubusercontent.com/F-Hauri/Connector-bash/master/shell_connector.bash
. shell_connector.bash
newConnector /bin/date '-f - +%s' @0 0
myDate "2018-1-1 12:00" test
echo $test
1514804400
Nota: On GitHub, functions and test are separated files. On my site test are run simply if this script is not sourced.
# Exit here if script is sourced
[ "$0" = "$BASH_SOURCE" ] || { true;return 0;}
This will give you the count per month for 2012;
SELECT MONTH(ARR_DATE) MONTH, COUNT(*) COUNT
FROM table_emp
WHERE YEAR(arr_date)=2012
GROUP BY MONTH(ARR_DATE);
Demo here.
In regards to veggerby's solution, if you are trying to implement it on a VB app, be careful trying to run the supplied code through a translator. The following will work:
Imports System.Web
Imports System.Web.Services
Imports System.Web.SessionState
Public Class SessionHeartbeatHttpHandler
Implements IHttpHandler
Implements IRequiresSessionState
ReadOnly Property IsReusable() As Boolean Implements IHttpHandler.IsReusable
Get
Return False
End Get
End Property
Sub ProcessRequest(ByVal context As HttpContext) Implements IHttpHandler.ProcessRequest
context.Session("Heartbeat") = DateTime.Now
End Sub
End Class
Also, instead of calling like heartbeat() function like:
setTimeout("heartbeat()", 300000);
Instead, call it like:
setInterval(function () { heartbeat(); }, 300000);
Number one, setTimeout only fires once whereas setInterval will fire repeatedly. Number two, calling heartbeat() like a string didn't work for me, whereas calling it like an actual function did.
And I can absolutely 100% confirm that this solution will overcome GoDaddy's ridiculous decision to force a 5 minute apppool session in Plesk!
In my case I had a panda Series where the values are tuples of characters:
Out[67]
0 (H, H, H, H)
1 (H, H, H, T)
2 (H, H, T, H)
3 (H, H, T, T)
4 (H, T, H, H)
Therefore I could use indexing to filter the series, but to create the index I needed apply
. My condition is "find all tuples which have exactly one 'H'".
series_of_tuples[series_of_tuples.apply(lambda x: x.count('H')==1)]
I admit it is not "chainable", (i.e. notice I repeat series_of_tuples
twice; you must store any temporary series into a variable so you can call apply(...) on it).
There may also be other methods (besides .apply(...)
) which can operate elementwise to produce a Boolean index.
Many other answers (including accepted answer) using the chainable functions like:
.compress()
.where()
.loc[]
[]
These accept callables (lambdas) which are applied to the Series, not to the individual values in those series!
Therefore my Series of tuples behaved strangely when I tried to use my above condition / callable / lambda, with any of the chainable functions, like .loc[]
:
series_of_tuples.loc[lambda x: x.count('H')==1]
Produces the error:
KeyError: 'Level H must be same as name (None)'
I was very confused, but it seems to be using the Series.count series_of_tuples.count(...)
function , which is not what I wanted.
I admit that an alternative data structure may be better:
This creates a series of strings (i.e. by concatenating the tuple; joining the characters in the tuple on a single string)
series_of_tuples.apply(''.join)
So I can then use the chainable Series.str.count
series_of_tuples.apply(''.join).str.count('H')==1
If your code doesn't require the file to be truncated first, you can use the FileMode.OpenOrCreate to open the filestream, which will create the file if it doesn't exist or open it if it does. You can use the stream to point at the front and start overwriting the existing file?
I'm assuming your using a streams here, there are other ways to write a file.
public OnClickListener moreListener = new OnClickListener() {
@Override
public void onClick(View v) {
adapter.add("aaaa")
}
}
Try This code:
public class GenericCompare<T> : IEqualityComparer<T> where T : class
{
private Func<T, object> _expr { get; set; }
public GenericCompare(Func<T, object> expr)
{
this._expr = expr;
}
public bool Equals(T x, T y)
{
var first = _expr.Invoke(x);
var sec = _expr.Invoke(y);
if (first != null && first.Equals(sec))
return true;
else
return false;
}
public int GetHashCode(T obj)
{
return obj.GetHashCode();
}
}
Example of its use would be
collection = collection
.Except(ExistedDataEles, new GenericCompare<DataEle>(x=>x.Id))
.ToList();