Using EntityManagerFactory approach allows us to use callback method annotations like @PrePersist, @PostPersist,@PreUpdate with no extra configuration.
Using similar callbacks while using SessionFactory will require extra efforts.
use plt.figure(dpi=1200)
before all your plt.plot...
and at the end use plt.savefig(...
see: http://matplotlib.org/api/pyplot_api.html#matplotlib.pyplot.figure
and
http://matplotlib.org/api/pyplot_api.html#matplotlib.pyplot.savefig
This should fix your problem:
docker-compose ps # lists all services (id, name)
docker-compose stop <id/name> #this will stop only the selected container
docker-compose rm <id/name> # this will remove the docker container permanently
docker-compose up # builds/rebuilds all not already built container
In fact the deleteDir function recursively deletes the current directory and its contents. Symbolic links and junctions will not be followed but will be removed.
To delete a specific directory of a workspace wrap the deleteDir step in a dir step.
dir('directoryToDelete') {
deleteDir()
}
i changed default password from " " with space to blank
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-compiler-plugin</artifactId>
<configuration>
<source>1.8</source>
<target>1.8</target>
</configuration>
</plugin>
This is the important plugin that should be in pom.xml. I spent my two days debugging and researching. This was the solution. This is Apache plugin to tell maven to use the the given Compiler.
You can format a number, say x
, up to decimal places as you wish. Here x
is a number with many decimal places. Suppose we wish to show up to 8 decimal places of this number:
x = 1111111234.6547389758965789345
y = formatC(x, digits = 8, format = "f")
# [1] "1111111234.65473890"
Here format="f"
gives floating numbers in the usual decimal places say, xxx.xxx, and digits
specifies the number of digits. By contrast, if you wanted to get an integer to display you would use format="d"
(much like sprintf
).
If you use the Percona XtraDB Cluster -
I found that adding
--skip-add-locks
to the mysqldump command
Allows the Percona XtraDB Cluster to run the dump file
without an issue about LOCK TABLES commands in the dump file.
I solved this way, when I had to use the foreach index and value in the same context:
$array = array('a', 'b', 'c');
foreach ($array as $letter=>$index) {
echo $letter; //Here $letter content is the actual index
echo $array[$letter]; // echoes the array value
}//foreach
$width = 10;
$a = preg_replace ("~^(.{{$width}})(.+)~", '\\1…', $a);
or with wordwrap
$a = preg_replace ("~^(.{1,${width}}\b)(.+)~", '\\1…', $a);
The code above works perfectly with one minor flaw; the resulting file is not saved with a .csv extension. – Tensigh 2 days ago
I added the following to code and it saved my file as a csv. Thanks for this bit of code.It all worked as expected.
ActiveWorkbook.SaveAs Filename:=SaveToDirectory & ThisWorkbook.Name & "-" & WS.Name & ".csv", FileFormat:=xlCSV
I was using HttpClient and getting back response header with content-type of application/json
, I lost characters such as foreign languages or symbol that used unicode since HttpClient is default to ISO-8859-1. So, be explicit as possible as mentioned by @WesternGun to avoid any possible problem.
There is no way handle that due to server doesn't handle requested-header charset (method.setRequestHeader("accept-charset", "UTF-8");
) for me and I had to retrieve response data as draw bytes and convert it into String using UTF-8. So, it is recommended to be explicit and avoid assumption of default value.
1) answer of first question : according to Picasso Doc for With() method
The global default Picasso instance returned from with() is automatically initialized with defaults that are suitable to most implementations.
- LRU memory cache of 15% the available application RAM
- Disk cache of 2% storage space up to 50MB but no less than 5MB.
But Disk Cache
operation for global Default Picasso is only available on API 14+
2) answer of second Question : Picasso
use the HTTP
client request to Disk Cache
operation So you can make your own http request header
has property Cache-Control
with max-age
And create your own Static Picasso Instance instead of default Picasso By using
1] HttpResponseCache (Note: Works only for API 13+ )
2] OkHttpClient (Works for all APIs)
Example for using OkHttpClient
to create your own Static Picasso class:
First create a new class to get your own singleton picasso
object
import android.content.Context;
import com.squareup.picasso.Downloader;
import com.squareup.picasso.OkHttpDownloader;
import com.squareup.picasso.Picasso;
public class PicassoCache {
/**
* Static Picasso Instance
*/
private static Picasso picassoInstance = null;
/**
* PicassoCache Constructor
*
* @param context application Context
*/
private PicassoCache (Context context) {
Downloader downloader = new OkHttpDownloader(context, Integer.MAX_VALUE);
Picasso.Builder builder = new Picasso.Builder(context);
builder.downloader(downloader);
picassoInstance = builder.build();
}
/**
* Get Singleton Picasso Instance
*
* @param context application Context
* @return Picasso instance
*/
public static Picasso getPicassoInstance (Context context) {
if (picassoInstance == null) {
new PicassoCache(context);
return picassoInstance;
}
return picassoInstance;
}
}
use your own singleton picasso
object Instead of Picasso.With()
PicassoCache.getPicassoInstance(getContext()).load(imagePath).into(imageView)
3) answer for third question : you do not need any disk permissions for disk Cache operations
References: Github issue about disk cache, two Questions has been answered by @jake-wharton -> Question1 and Question2
I found the answer, and in spite of what I reported, it was NOT browser specific. The bug was in my function code, and would have occurred in any browser. It boils down to this. I had two lines in my code that were FireFox/FireBug specific. They used console.log. In IE, they threw an error, so I commented them out (or so I thought). I did a crappy job commenting them out, and broke the bracketing in my function.
Original Code (with console.log in it):
if (sxti.length <= 50) console.log('sxti=' + sxti);
if (sxph.length <= 50) console.log('sxph=' + sxph);
Broken Code (misplaced brackets inside comments):
if (sxti.length <= 50) { //console.log('sxti=' + sxti); }
if (sxph.length <= 50) { //console.log('sxph=' + sxph); }
Fixed Code (fixed brackets outside comments):
if (sxti.length <= 50) { }//console.log('sxti=' + sxti);
if (sxph.length <= 50) { }//console.log('sxph=' + sxph);
So, it was my own sloppy coding. The function really wasn't defined, because a syntax error kept it from being closed.
Oh well, live and learn. ;)
Internally the function will access the system's clock, which is why it returns different values each time you call it. In general with non-functional languages there can be many side effects and hidden state in functions which you can't see just by looking at the function's name and arguments.
It is possibly because the value of val
is actually the string "null"
rather than the value null
.
sed
doesn't support \t
, nor other escape sequences like \n
for that matter. The only way I've found to do it was to actually insert the tab character in the script using sed
.
That said, you may want to consider using Perl or Python. Here's a short Python script I wrote that I use for all stream regex'ing:
#!/usr/bin/env python
import sys
import re
def main(args):
if len(args) < 2:
print >> sys.stderr, 'Usage: <search-pattern> <replace-expr>'
raise SystemExit
p = re.compile(args[0], re.MULTILINE | re.DOTALL)
s = sys.stdin.read()
print p.sub(args[1], s),
if __name__ == '__main__':
main(sys.argv[1:])
I just want to write an small enhancement for the answer of amirnissim
The script posted doesn't support IE8, because "event.which" seems to be always empty in IE8.
To solve this problem you just need to additionally check for "event.keyCode":
listener = function (event) {
if (event.which == 13 || event.keyCode == 13) {
var suggestion_selected = $(".pac-item.pac-selected").length > 0;
if(!suggestion_selected){
var simulated_downarrow = $.Event("keydown", {keyCode:40, which:40})
orig_listener.apply(input, [simulated_downarrow]);
}
}
orig_listener.apply(input, [event]);
};
JS-Fiddle: http://jsfiddle.net/QW59W/107/
Even though I followed some few logical steps: uninstall app, rebuild project, the only solution that worked for me was: restart XCode. (XCode 8.1)
Bumped into same warning. If you specified goals and built project using "Run as -> Maven build..." option check and remove pom.xml from Profiles: just below Goals:
random_state is None by default which means every time when you run your program you will get different output because of splitting between train and test varies within.
random_state = any int value means every time when you run your program you will get tehe same output because of splitting between train and test does not varies within.
This should get you started:
R> qplot(hwy, cty, data = mpg) +
facet_grid(. ~ manufacturer) +
theme(strip.text.x = element_text(size = 8, colour = "orange", angle = 90))
See also this question: How can I manipulate the strip text of facet plots in ggplot2?
@Jon's answer is great and will get you where you need to go. So why is your code printing out what it is. The answer: You're not writing out the contents of your list, but the String representation of your list itself, by an implicit call to Lists.verbList.ToString(). Object.ToString() defines the default behavior you're seeing here.
Typeface tf = Typeface.createFromAsset(getAssets(),
"fonts/DroidSansFallback.ttf");
TextView tv = (TextView) findViewById(R.id.CustomFontText);
tv.setTypeface(tf);
You simply want the File.GetLastWriteTime
static method.
Example:
var lastModified = System.IO.File.GetLastWriteTime("C:\foo.bar");
Console.WriteLine(lastModified.ToString("dd/MM/yy HH:mm:ss"));
Note however that in the rare case the last-modified time is not updated by the system when writing to the file (this can happen intentionally as an optimisation for high-frequency writing, e.g. logging, or as a bug), then this approach will fail, and you will instead need to subscribe to file write notifications from the system, constantly listening.
If you're running ubuntu container directly without a local Dockerfile you can ssh into the container and enable root control by entering su
then apt-get install -y wget
This is my code: (work for PHP7)
private function closeConnection()
{
@apache_setenv('no-gzip', 1);
@ini_set('zlib.output_compression', 0);
@ini_set('implicit_flush', 1);
ignore_user_abort(true);
set_time_limit(0);
ob_start();
// do initial processing here
echo json_encode(['ans' => true]);
header('Connection: close');
header('Content-Length: ' . ob_get_length());
ob_end_flush();
ob_flush();
flush();
}
It can be very useful when flattening a hierarchy and/or mapping objects. Instead of:
if (Model.Model2 == null
|| Model.Model2.Model3 == null
|| Model.Model2.Model3.Model4 == null
|| Model.Model2.Model3.Model4.Name == null)
{
mapped.Name = "N/A"
}
else
{
mapped.Name = Model.Model2.Model3.Model4.Name;
}
It can be written like (same logic as above)
mapped.Name = Model.Model2?.Model3?.Model4?.Name ?? "N/A";
DotNetFiddle.Net Working Example.
(the ?? or null-coalescing operator is different than the ? or null conditional operator).
It can also be used out side of assignment operators with Action. Instead of
Action<TValue> myAction = null;
if (myAction != null)
{
myAction(TValue);
}
It can be simplified to:
myAction?.Invoke(TValue);
using System;
public class Program
{
public static void Main()
{
Action<string> consoleWrite = null;
consoleWrite?.Invoke("Test 1");
consoleWrite = (s) => Console.WriteLine(s);
consoleWrite?.Invoke("Test 2");
}
}
Result:
Test 2
try this one:
KeychainItemWrapper *keychainItem = [[KeychainItemWrapper alloc] initWithIdentifier:@"YourAppLogin" accessGroup:nil];
[keychainItem setObject:@"password you are saving" forKey:kSecValueData];
[keychainItem setObject:@"username you are saving" forKey:kSecAttrAccount];
may it will help.
My solution, having encountered the same error message, was even simpler than the ones above, I just updated the to basicHttpsBinding>
<bindings>
<basicHttpsBinding>
<binding name="ShipServiceSoap" maxBufferPoolSize="512000" maxReceivedMessageSize="512000" />
</basicHttpsBinding>
</bindings>
And the same in the section below:
<client>
<endpoint address="https://s.asmx" binding="basicHttpsBinding" bindingConfiguration="ShipServiceSoap" contract="..ServiceSoap" name="ShipServiceSoap" />
</client>
if you using Generic Array List with Class instead of specific type like
EX:
private ArrayList<Model> aListModel = new ArrayList<Model>();
Here, Model = Class
Receiving Intent Like :
aListModel = (ArrayList<Model>) getIntent().getSerializableExtra(KEY);
MUST REMEMBER:
Here Model-class must be implemented like: ModelClass implements Serializable
The accepted answer is great. This is not answer, but just an illustration of the issue.
I present a viewController like this:
inside vc1:
func showVC2() {
if let navController = self.navigationController{
navController.present(vc2, animated: true)
}
}
inside vc2:
func returnFromVC2() {
if let navController = self.navigationController {
navController.popViewController(animated: true)
}else{
print("navigationController is nil") <-- I was reaching here!
}
}
As 'stefandouganhyde' has said: "it is not contained by your UINavigationController or any other"
new solution:
func returnFromVC2() {
dismiss(animated: true, completion: nil)
}
To remove all cookies you could write:
foreach ($_COOKIE as $key => $value) {
unset($value);
setcookie($key, '', time() - 3600);
}
Had the same error. Looks like it is related to SSL certificates. If you are using NPM for public packages (don't need the security of HTTPS) you can turn off strict SSL key validation with the following command.
This might be the simplest fix if you're just looking to install a few publicly available packages one time.
npm config set strict-ssl=false
This worked for me!!
SELECT * FROM `users` where `created_at` BETWEEN CURDATE()-7 AND CURDATE()
Use your bean class like this, if your JSON data starts with an an array object. it helps you.
Users[] bean = gson.fromJson(response,Users[].class);
Users is my bean class.
Response is my JSON data.
You just missed an extra pair of brackets for the "OR" symbol. The following should do the trick:
([0-9]+)\s+((\bseconds\b)|(\bminutes\b))
Without those you were either matching a number followed by seconds OR just the word minutes
You would do something like this to get the path "Data\ich_will.mp3" inside your application environments folder.
string fileName = "ich_will.mp3";
string path = Path.Combine(Environment.CurrentDirectory, @"Data\", fileName);
In my case it would return the following:
C:\MyProjects\Music\MusicApp\bin\Debug\Data\ich_will.mp3
I use Path.Combine
and Environment.CurrentDirectory
in my example. These are very useful and allows you to build a path based on the current location of your application. Path.Combine
combines two or more strings to create a location, and Environment.CurrentDirectory
provides you with the working directory of your application.
The working directory is not necessarily the same path as where your executable
is located, but in most cases it should be, unless specified otherwise.
If @myInt is zero it means no rows in the table: it would be NULL if never set at all.
COUNT will always return a row, even for no rows in a table.
Edit, Apr 2012: the rules for this are described in my answer here:Does COUNT(*) always return a result?
Your count/assign is correct but could be either way:
select @myInt = COUNT(*) from myTable
set @myInt = (select COUNT(*) from myTable)
However, if you are just looking for the existence of rows, (NOT) EXISTS is more efficient:
IF NOT EXISTS (SELECT * FROM myTable)
One issue with the answer is that it will throw an exception if a string is null. You can add that as a check so it won't:
public static bool Contains(this string source, string toCheck, StringComparison comp)
{
if (string.IsNullOrEmpty(toCheck) || string.IsNullOrEmpty(source))
return true;
return source.IndexOf(toCheck, comp) >= 0;
}
Addendum: Locally I have created a "User Library" and added to my projects which has
hamcrest-core-1.3.jar
junit-4.12.jar
#access a {
border-bottom: 2px solid #fff;
color: #eee;
display: block;
line-height: 3.333em;
padding: 0 10px 0 20px;
text-decoration: none;
}
I see that you had used line-height but you gave it to <a>
tag instead of <ul>
Try this:
#access ul {line-height:3.333em;}
You wouldn't need to play with margins then.
Simple solution: The sequence is really matter while including the auto complete libraries:
<link href="http://code.jquery.com/ui/1.10.2/themes/smoothness/jquery-ui.css" rel="Stylesheet"></link>
<script src='https://cdn.rawgit.com/pguso/jquery-plugin-circliful/master/js/jquery.circliful.min.js'></script>
<script src="http://code.jquery.com/ui/1.10.2/jquery-ui.js" ></script>
Here is one way to do this:
df = df[df.columns.drop(list(df.filter(regex='Test')))]
One difference we can note in Windows is:
If you use Runtime.getRuntime().exec("rmiregistry 1024");
you can see rmiregistry.exe process will run in your Task Manager
whereas if you use Registry registry = LocateRegistry.createRegistry(1024);
you can not see the process running in Task Manager,
I think Java handles it in a different way.
and this is my server.policy file
Before running the the application, make sure that you killed all your existing javaw.exe and rmiregistry.exe corresponds to your rmi programs which are already running.
The following code works for me by using Registry.LocateRegistry()
or
Runtime.getRuntime.exec("");
// Standard extensions get all permissions by default
grant {
permission java.security.AllPermission;
};
VM argument
-Djava.rmi.server.codebase=file:\C:\Users\Durai\workspace\RMI2\src\
Code:
package server;
import java.rmi.Naming;
import java.rmi.RMISecurityManager;
import java.rmi.Remote;
import java.rmi.registry.LocateRegistry;
import java.rmi.registry.Registry;
public class HelloServer
{
public static void main (String[] argv)
{
try {
if(System.getSecurityManager()==null){
System.setProperty("java.security.policy","C:\\Users\\Durai\\workspace\\RMI\\src\\server\\server.policy");
System.setSecurityManager(new RMISecurityManager());
}
Runtime.getRuntime().exec("rmiregistry 1024");
// Registry registry = LocateRegistry.createRegistry(1024);
// registry.rebind ("Hello", new Hello ("Hello,From Roseindia.net pvt ltd!"));
//Process process = Runtime.getRuntime().exec("C:\\Users\\Durai\\workspace\\RMI\\src\\server\\rmi_registry_start.bat");
Naming.rebind ("//localhost:1024/Hello",new Hello ("Hello,From Roseindia.net pvt ltd!"));
System.out.println ("Server is connected and ready for operation.");
}
catch (Exception e) {
System.out.println ("Server not connected: " + e);
e.printStackTrace();
}
}
}
The simple jquery source for the same -
$("input:radio[name='group1']").click(function() {
$('.desc').hide();
$('#' + $("input:radio[name='group1']:checked").val()).show();
});
In order to make it little more appropriate just add checked to first option --
<div><label><input type="radio" name="group1" value="opt1" checked>opt1</label></div>
remove .desc class from styling and modify divs like --
<div id="opt1" class="desc">lorem ipsum dolor</div>
<div id="opt2" class="desc" style="display: none;">consectetur adipisicing</div>
<div id="opt3" class="desc" style="display: none;">sed do eiusmod tempor</div>
it will really look good any-ways.
Try something like this
PdfPCell cell;
PdfPTable tableHeader;
PdfPTable tmpTable;
PdfPTable table = new PdfPTable(10) { WidthPercentage = 100, RunDirection = PdfWriter.RUN_DIRECTION_LTR, ExtendLastRow = false };
// row 1 / cell 1 (merge)
PdfPCell _c = new PdfPCell(new Phrase("SER. No")) { Rotation = -90, VerticalAlignment = Element.ALIGN_MIDDLE, HorizontalAlignment = Element.ALIGN_CENTER, BorderWidth = 1 };
_c.Rowspan = 2;
table.AddCell(_c);
// row 1 / cell 2
_c = new PdfPCell(new Phrase("TYPE OF SHIPPING")) { VerticalAlignment = Element.ALIGN_MIDDLE, HorizontalAlignment = Element.ALIGN_CENTER };
table.AddCell(_c);
// row 1 / cell 3
_c = new PdfPCell(new Phrase("ORDER NO.")) { VerticalAlignment = Element.ALIGN_MIDDLE, HorizontalAlignment = Element.ALIGN_CENTER };
table.AddCell(_c);
// row 1 / cell 4
_c = new PdfPCell(new Phrase("QTY.")) { VerticalAlignment = Element.ALIGN_MIDDLE, HorizontalAlignment = Element.ALIGN_CENTER };
table.AddCell(_c);
// row 1 / cell 5
_c = new PdfPCell(new Phrase("DISCHARGE PPORT")) { VerticalAlignment = Element.ALIGN_MIDDLE, HorizontalAlignment = Element.ALIGN_CENTER };
table.AddCell(_c);
// row 1 / cell 6 (merge)
_c = new PdfPCell(new Phrase("DESCRIPTION OF GOODS")) { VerticalAlignment = Element.ALIGN_MIDDLE, HorizontalAlignment = Element.ALIGN_CENTER };
_c.Rowspan = 2;
table.AddCell(_c);
// row 1 / cell 7
_c = new PdfPCell(new Phrase("LINE DOC. RECI. DATE")) { VerticalAlignment = Element.ALIGN_MIDDLE, HorizontalAlignment = Element.ALIGN_CENTER };
table.AddCell(_c);
// row 1 / cell 8 (merge)
_c = new PdfPCell(new Phrase("OWNER DOC. RECI. DATE")) { VerticalAlignment = Element.ALIGN_MIDDLE, HorizontalAlignment = Element.ALIGN_CENTER };
_c.Rowspan = 2;
table.AddCell(_c);
// row 1 / cell 9 (merge)
_c = new PdfPCell(new Phrase("CLEARANCE DATE")) { VerticalAlignment = Element.ALIGN_MIDDLE, HorizontalAlignment = Element.ALIGN_CENTER };
_c.Rowspan = 2;
table.AddCell(_c);
// row 1 / cell 10 (merge)
_c = new PdfPCell(new Phrase("CUSTOM PERMIT NO.")) { VerticalAlignment = Element.ALIGN_MIDDLE, HorizontalAlignment = Element.ALIGN_CENTER };
_c.Rowspan = 2;
table.AddCell(_c);
// row 2 / cell 2
_c = new PdfPCell(new Phrase("AWB / BL NO.")) { VerticalAlignment = Element.ALIGN_MIDDLE, HorizontalAlignment = Element.ALIGN_CENTER };
table.AddCell(_c);
// row 2 / cell 3
_c = new PdfPCell(new Phrase("COMPLEX NAME")) { VerticalAlignment = Element.ALIGN_MIDDLE, HorizontalAlignment = Element.ALIGN_CENTER };
table.AddCell(_c);
// row 2 / cell 4
_c = new PdfPCell(new Phrase("G.W Kgs.")) { VerticalAlignment = Element.ALIGN_MIDDLE, HorizontalAlignment = Element.ALIGN_CENTER };
table.AddCell(_c);
// row 2 / cell 5
_c = new PdfPCell(new Phrase("DESTINATON")) { VerticalAlignment = Element.ALIGN_MIDDLE, HorizontalAlignment = Element.ALIGN_CENTER };
table.AddCell(_c);
// row 2 / cell 7
_c = new PdfPCell(new Phrase("OWNER DOC. RECI. DATE")) { VerticalAlignment = Element.ALIGN_MIDDLE, HorizontalAlignment = Element.ALIGN_CENTER };
table.AddCell(_c);
_doc.Add(table);
///////////////////////////////////////////////////////////
_doc.Close();
You might need to re-adjust slightly on the widths and borders but that is a one shot to do.
mod_rewrite can only rewrite/redirect requested URIs. So you would need to request /apple/…
to get it rewritten to a corresponding /folder1/…
.
Try this:
RewriteEngine on
RewriteRule ^apple/(.*) folder1/$1
This rule will rewrite every request that starts with the URI path /apple/…
internally to /folder1/…
.
Edit As you are actually looking for the other way round:
RewriteCond %{THE_REQUEST} ^GET\ /folder1/
RewriteRule ^folder1/(.*) /apple/$1 [L,R=301]
This rule is designed to work together with the other rule above. Requests of /folder1/…
will be redirected externally to /apple/…
and requests of /apple/…
will then be rewritten internally back to /folder1/…
.
Though the question has a decent answer already, I just want to stress that the :first-child
tag goes on the item type that represents the children.
For example, in the code:
<div id"someDiv">
<input id="someInput1" />
<input id="someInput2" />
<input id="someInput2" />
</div
If you want to affect only the second two elements with a margin, but not the first, you would do:
#someDiv > input {
margin-top: 20px;
}
#someDiv > input:first-child{
margin-top: 0px;
}
that is, since the input
s are the children, you would place first-child
on the input portion of the selector.
There are basically 3 approaches to that: not exists
, not in
and left join / is null
.
SELECT l.*
FROM t_left l
LEFT JOIN
t_right r
ON r.value = l.value
WHERE r.value IS NULL
SELECT l.*
FROM t_left l
WHERE l.value NOT IN
(
SELECT value
FROM t_right r
)
SELECT l.*
FROM t_left l
WHERE NOT EXISTS
(
SELECT NULL
FROM t_right r
WHERE r.value = l.value
)
Which one is better? The answer to this question might be better to be broken down to major specific RDBMS vendors. Generally speaking, one should avoid using select ... where ... in (select...)
when the magnitude of number of records in the sub-query is unknown. Some vendors might limit the size. Oracle, for example, has a limit of 1,000. Best thing to do is to try all three and show the execution plan.
Specifically form PostgreSQL, execution plan of NOT EXISTS
and LEFT JOIN / IS NULL
are the same. I personally prefer the NOT EXISTS
option because it shows better the intent. After all the semantic is that you want to find records in A that its pk do not exist in B.
Old but still gold, specific to PostgreSQL though: https://explainextended.com/2009/09/16/not-in-vs-not-exists-vs-left-join-is-null-postgresql/
Install a newer version of Eclipse, (Luna Release (4.4.0) or more recent), it include a great Dark theme by default.
Here is a screenshot :
You're asking for a comparison between a procedural language and a functional language so I feel your question can be answered here: What is the difference between procedural programming and functional programming?
As to why MS created F# the answer is simply: Creating a functional language with access to the .Net library simply expanded their market base. And seeing how the syntax is nearly identical to OCaml, it really didn't require much effort on their part.
I think the best way would be this:
From HTML5 boilerplate:
<!--[if lt IE 7]> <html lang="en-us" class="no-js ie6 oldie"> <![endif]-->
<!--[if IE 7]> <html lang="en-us" class="no-js ie7 oldie"> <![endif]-->
<!--[if IE 8]> <html lang="en-us" class="no-js ie8 oldie"> <![endif]-->
<!--[if gt IE 8]><!--> <html lang="en-us" class="no-js"> <!--<![endif]-->
in JS:
if( $("html").hasClass("ie8") ) { /* do your things */ };
especially since $.browser
has been removed from jQuery 1.9+.
When you write
df['Date'] = pd.to_datetime(df['Date'], errors='coerce')
df['Date'] = df['Date'].dt.strftime('%m/%d')
It can fixed
If you don't care about preserving the factors, and want to apply it to any column that can get converted to numeric, I used the script below. if df is your original dataframe, you can use the script below.
df[] <- lapply(df, as.character)
df <- data.frame(lapply(df, function(x) ifelse(!is.na(as.numeric(x)), as.numeric(x), x)))
In token-based authentication, the client exchanges hard credentials (such as username and password) for a piece of data called token. For each request, instead of sending the hard credentials, the client will send the token to the server to perform authentication and then authorization.
In a few words, an authentication scheme based on tokens follow these steps:
Note: The step 3 is not required if the server has issued a signed token (such as JWT, which allows you to perform stateless authentication).
This solution uses only the JAX-RS 2.0 API, avoiding any vendor specific solution. So, it should work with JAX-RS 2.0 implementations, such as Jersey, RESTEasy and Apache CXF.
It is worthwhile to mention that if you are using token-based authentication, you are not relying on the standard Java EE web application security mechanisms offered by the servlet container and configurable via application's web.xml
descriptor. It's a custom authentication.
Create a JAX-RS resource method which receives and validates the credentials (username and password) and issue a token for the user:
@Path("/authentication")
public class AuthenticationEndpoint {
@POST
@Produces(MediaType.APPLICATION_JSON)
@Consumes(MediaType.APPLICATION_FORM_URLENCODED)
public Response authenticateUser(@FormParam("username") String username,
@FormParam("password") String password) {
try {
// Authenticate the user using the credentials provided
authenticate(username, password);
// Issue a token for the user
String token = issueToken(username);
// Return the token on the response
return Response.ok(token).build();
} catch (Exception e) {
return Response.status(Response.Status.FORBIDDEN).build();
}
}
private void authenticate(String username, String password) throws Exception {
// Authenticate against a database, LDAP, file or whatever
// Throw an Exception if the credentials are invalid
}
private String issueToken(String username) {
// Issue a token (can be a random String persisted to a database or a JWT token)
// The issued token must be associated to a user
// Return the issued token
}
}
If any exceptions are thrown when validating the credentials, a response with the status 403
(Forbidden) will be returned.
If the credentials are successfully validated, a response with the status 200
(OK) will be returned and the issued token will be sent to the client in the response payload. The client must send the token to the server in every request.
When consuming application/x-www-form-urlencoded
, the client must to send the credentials in the following format in the request payload:
username=admin&password=123456
Instead of form params, it's possible to wrap the username and the password into a class:
public class Credentials implements Serializable {
private String username;
private String password;
// Getters and setters omitted
}
And then consume it as JSON:
@POST
@Produces(MediaType.APPLICATION_JSON)
@Consumes(MediaType.APPLICATION_JSON)
public Response authenticateUser(Credentials credentials) {
String username = credentials.getUsername();
String password = credentials.getPassword();
// Authenticate the user, issue a token and return a response
}
Using this approach, the client must to send the credentials in the following format in the payload of the request:
{
"username": "admin",
"password": "123456"
}
The client should send the token in the standard HTTP Authorization
header of the request. For example:
Authorization: Bearer <token-goes-here>
The name of the standard HTTP header is unfortunate because it carries authentication information, not authorization. However, it's the standard HTTP header for sending credentials to the server.
JAX-RS provides @NameBinding
, a meta-annotation used to create other annotations to bind filters and interceptors to resource classes and methods. Define a @Secured
annotation as following:
@NameBinding
@Retention(RUNTIME)
@Target({TYPE, METHOD})
public @interface Secured { }
The above defined name-binding annotation will be used to decorate a filter class, which implements ContainerRequestFilter
, allowing you to intercept the request before it be handled by a resource method. The ContainerRequestContext
can be used to access the HTTP request headers and then extract the token:
@Secured
@Provider
@Priority(Priorities.AUTHENTICATION)
public class AuthenticationFilter implements ContainerRequestFilter {
private static final String REALM = "example";
private static final String AUTHENTICATION_SCHEME = "Bearer";
@Override
public void filter(ContainerRequestContext requestContext) throws IOException {
// Get the Authorization header from the request
String authorizationHeader =
requestContext.getHeaderString(HttpHeaders.AUTHORIZATION);
// Validate the Authorization header
if (!isTokenBasedAuthentication(authorizationHeader)) {
abortWithUnauthorized(requestContext);
return;
}
// Extract the token from the Authorization header
String token = authorizationHeader
.substring(AUTHENTICATION_SCHEME.length()).trim();
try {
// Validate the token
validateToken(token);
} catch (Exception e) {
abortWithUnauthorized(requestContext);
}
}
private boolean isTokenBasedAuthentication(String authorizationHeader) {
// Check if the Authorization header is valid
// It must not be null and must be prefixed with "Bearer" plus a whitespace
// The authentication scheme comparison must be case-insensitive
return authorizationHeader != null && authorizationHeader.toLowerCase()
.startsWith(AUTHENTICATION_SCHEME.toLowerCase() + " ");
}
private void abortWithUnauthorized(ContainerRequestContext requestContext) {
// Abort the filter chain with a 401 status code response
// The WWW-Authenticate header is sent along with the response
requestContext.abortWith(
Response.status(Response.Status.UNAUTHORIZED)
.header(HttpHeaders.WWW_AUTHENTICATE,
AUTHENTICATION_SCHEME + " realm=\"" + REALM + "\"")
.build());
}
private void validateToken(String token) throws Exception {
// Check if the token was issued by the server and if it's not expired
// Throw an Exception if the token is invalid
}
}
If any problems happen during the token validation, a response with the status 401
(Unauthorized) will be returned. Otherwise the request will proceed to a resource method.
To bind the authentication filter to resource methods or resource classes, annotate them with the @Secured
annotation created above. For the methods and/or classes that are annotated, the filter will be executed. It means that such endpoints will only be reached if the request is performed with a valid token.
If some methods or classes do not need authentication, simply do not annotate them:
@Path("/example")
public class ExampleResource {
@GET
@Path("{id}")
@Produces(MediaType.APPLICATION_JSON)
public Response myUnsecuredMethod(@PathParam("id") Long id) {
// This method is not annotated with @Secured
// The authentication filter won't be executed before invoking this method
...
}
@DELETE
@Secured
@Path("{id}")
@Produces(MediaType.APPLICATION_JSON)
public Response mySecuredMethod(@PathParam("id") Long id) {
// This method is annotated with @Secured
// The authentication filter will be executed before invoking this method
// The HTTP request must be performed with a valid token
...
}
}
In the example shown above, the filter will be executed only for the mySecuredMethod(Long)
method because it's annotated with @Secured
.
It's very likely that you will need to know the user who is performing the request agains your REST API. The following approaches can be used to achieve it:
Within your ContainerRequestFilter.filter(ContainerRequestContext)
method, a new SecurityContext
instance can be set for the current request. Then override the SecurityContext.getUserPrincipal()
, returning a Principal
instance:
final SecurityContext currentSecurityContext = requestContext.getSecurityContext();
requestContext.setSecurityContext(new SecurityContext() {
@Override
public Principal getUserPrincipal() {
return () -> username;
}
@Override
public boolean isUserInRole(String role) {
return true;
}
@Override
public boolean isSecure() {
return currentSecurityContext.isSecure();
}
@Override
public String getAuthenticationScheme() {
return AUTHENTICATION_SCHEME;
}
});
Use the token to look up the user identifier (username), which will be the Principal
's name.
Inject the SecurityContext
in any JAX-RS resource class:
@Context
SecurityContext securityContext;
The same can be done in a JAX-RS resource method:
@GET
@Secured
@Path("{id}")
@Produces(MediaType.APPLICATION_JSON)
public Response myMethod(@PathParam("id") Long id,
@Context SecurityContext securityContext) {
...
}
And then get the Principal
:
Principal principal = securityContext.getUserPrincipal();
String username = principal.getName();
If, for some reason, you don't want to override the SecurityContext
, you can use CDI (Context and Dependency Injection), which provides useful features such as events and producers.
Create a CDI qualifier:
@Qualifier
@Retention(RUNTIME)
@Target({ METHOD, FIELD, PARAMETER })
public @interface AuthenticatedUser { }
In your AuthenticationFilter
created above, inject an Event
annotated with @AuthenticatedUser
:
@Inject
@AuthenticatedUser
Event<String> userAuthenticatedEvent;
If the authentication succeeds, fire the event passing the username as parameter (remember, the token is issued for a user and the token will be used to look up the user identifier):
userAuthenticatedEvent.fire(username);
It's very likely that there's a class that represents a user in your application. Let's call this class User
.
Create a CDI bean to handle the authentication event, find a User
instance with the correspondent username and assign it to the authenticatedUser
producer field:
@RequestScoped
public class AuthenticatedUserProducer {
@Produces
@RequestScoped
@AuthenticatedUser
private User authenticatedUser;
public void handleAuthenticationEvent(@Observes @AuthenticatedUser String username) {
this.authenticatedUser = findUser(username);
}
private User findUser(String username) {
// Hit the the database or a service to find a user by its username and return it
// Return the User instance
}
}
The authenticatedUser
field produces a User
instance that can be injected into container managed beans, such as JAX-RS services, CDI beans, servlets and EJBs. Use the following piece of code to inject a User
instance (in fact, it's a CDI proxy):
@Inject
@AuthenticatedUser
User authenticatedUser;
Note that the CDI @Produces
annotation is different from the JAX-RS @Produces
annotation:
javax.enterprise.inject.Produces
javax.ws.rs.Produces
Be sure you use the CDI @Produces
annotation in your AuthenticatedUserProducer
bean.
The key here is the bean annotated with @RequestScoped
, allowing you to share data between filters and your beans. If you don't wan't to use events, you can modify the filter to store the authenticated user in a request scoped bean and then read it from your JAX-RS resource classes.
Compared to the approach that overrides the SecurityContext
, the CDI approach allows you to get the authenticated user from beans other than JAX-RS resources and providers.
Please refer to my other answer for details on how to support role-based authorization.
A token can be:
See details below:
A token can be issued by generating a random string and persisting it to a database along with the user identifier and an expiration date. A good example of how to generate a random string in Java can be seen here. You also could use:
Random random = new SecureRandom();
String token = new BigInteger(130, random).toString(32);
JWT (JSON Web Token) is a standard method for representing claims securely between two parties and is defined by the RFC 7519.
It's a self-contained token and it enables you to store details in claims. These claims are stored in the token payload which is a JSON encoded as Base64. Here are some claims registered in the RFC 7519 and what they mean (read the full RFC for further details):
iss
: Principal that issued the token.sub
: Principal that is the subject of the JWT.exp
: Expiration date for the token.nbf
: Time on which the token will start to be accepted for processing.iat
: Time on which the token was issued. jti
: Unique identifier for the token.Be aware that you must not store sensitive data, such as passwords, in the token.
The payload can be read by the client and the integrity of the token can be easily checked by verifying its signature on the server. The signature is what prevents the token from being tampered with.
You won't need to persist JWT tokens if you don't need to track them. Althought, by persisting the tokens, you will have the possibility of invalidating and revoking the access of them. To keep the track of JWT tokens, instead of persisting the whole token on the server, you could persist the token identifier (jti
claim) along with some other details such as the user you issued the token for, the expiration date, etc.
When persisting tokens, always consider removing the old ones in order to prevent your database from growing indefinitely.
There are a few Java libraries to issue and validate JWT tokens such as:
To find some other great resources to work with JWT, have a look at http://jwt.io.
If you want to revoke tokens, you must keep the track of them. You don't need to store the whole token on server side, store only the token identifier (that must be unique) and some metadata if you need. For the token identifier you could use UUID.
The jti
claim should be used to store the token identifier on the token. When validating the token, ensure that it has not been revoked by checking the value of the jti
claim against the token identifiers you have on server side.
For security purposes, revoke all the tokens for a user when they change their password.
#!/usr/bin/perl -l
use strict;
# if string below commented out, prints 'lol' , if the string enabled, prints 'eeeeeeeee'
#my $lol = 'eeeeeeeeeee' ;
# no errors or warnings at any case, despite of 'strict'
our $lol = eval {$lol} || 'lol' ;
print $lol;
If you really need single quotes, apostrophes, you can use
html | numeric | hex
‘ | ‘ | ‘ // for the left/beginning single-quote and
’ | ’ | ’ // for the right/ending single-quote
What you can do is store the router IP of your user and also the forwarded IP and try to make it reliable using both the IPs [External Public and Internal Private]. But again after some days client may be assigned new internal IP from router but it will be more reliable.
npm
decided to add a new command:
npm fund
that will provide more visibility to npm users on what dependencies are actively looking for ways to fund their work.
npm install
will also show a single message at the end in order to let user aware that dependencies are looking for funding, it looks like this:
$ npm install
packages are looking for funding.
run `npm fund` for details.
Running npm fund <package>
will open the url listed for that given package right in your browser.
You can simply do
print 2*'hello'
Save this xml and add as a background for the linear layout....
<shape xmlns:android="http://schemas.android.com/apk/res/android">
<stroke android:width="4dp" android:color="#FF00FF00" />
<solid android:color="#ffffff" />
<padding android:left="7dp" android:top="7dp"
android:right="7dp" android:bottom="0dp" />
<corners android:radius="4dp" />
</shape>
Hope this helps! :)
If you want to know if the user is accessing your app from facebook page tab or canvas check for the Signed Request. If you don't get it, probably the user is not accessing from facebook. To make sure confirm the signed_request fields structure and fields content.
With the php-sdk you can get the Signed Request like this:
$signed_request = $facebook->getSignedRequest();
You can read more about Signed Request here:
https://developers.facebook.com/docs/reference/php/facebook-getSignedRequest/
and here:
https://developers.facebook.com/docs/reference/login/signed-request/
You do not define a binding in your service's config, so you are getting the default values for wsHttpBinding
, and the default value for securityMode\transport
for that binding is Message
.
Try copying your binding configuration from the client's config to your service config and assign that binding to the endpoint via the bindingConfiguration
attribute:
<bindings>
<wsHttpBinding>
<binding name="ota2010AEndpoint"
.......>
<readerQuotas maxDepth="32" ... />
<reliableSession ordered="true" .... />
<security mode="Transport">
<transport clientCredentialType="None" proxyCredentialType="None"
realm="" />
<message clientCredentialType="Windows" negotiateServiceCredential="true"
establishSecurityContext="true" />
</security>
</binding>
</wsHttpBinding>
</bindings>
(Snipped parts of the config to save space in the answer).
<service name="Synxis" behaviorConfiguration="SynxisWCF">
<endpoint address="" name="wsHttpEndpoint"
binding="wsHttpBinding"
bindingConfiguration="ota2010AEndpoint"
contract="Synxis" />
This will then assign your defined binding (with Transport security) to the endpoint.
Here is a minimal example using moviepy. For me this was the easiest solution.
import os
import moviepy.video.io.ImageSequenceClip
image_folder='folder_with_images'
fps=1
image_files = [image_folder+'/'+img for img in os.listdir(image_folder) if img.endswith(".png")]
clip = moviepy.video.io.ImageSequenceClip.ImageSequenceClip(image_files, fps=fps)
clip.write_videofile('my_video.mp4')
The following code will work:
ComboBox1.SelectedIndex.Equals(String.Empty);
I usually use float: left;
and add overflow: auto;
to solve the collapsing parent problem (as to why this works, overflow: auto
will expand the parent instead of adding scrollbars if you do not give it explicit height, overflow: hidden
works as well). Most of the vertical alignment needs I had are for one-line of text in menu bars, which can be solved using line-height
property. If I really need to vertical align a block element, I'd set an explicit height on the parent and the vertically aligned item, position absolute, top 50%, and negative margin.
The reason I don't use display: table-cell
is the way it overflows when you have more items than the site's width can handle. table-cell will force the user to scroll horizontally, while floats will wrap the overflow menu, making it still usable without the need for horizontal scrolling.
The best thing about float: left and overflow: auto is that it works all the way back to IE6 without hacks, probably even further.
Remove the id="pass"
off the td
element. Right now the js will get the td element instead of the input hence the value is undefined.
Array: [1, 2, 3, 4]
Result: ["foo1", "foo2", "foo3", "foo4"]
Array.prototype.map()
Keep original arrayconst originalArr = ["Iron", "Super", "Ant", "Aqua"];
const modifiedArr = originalArr.map(name => `${name}man`);
console.log( "Original: %s", originalArr );
console.log( "Modified: %s", modifiedArr );
_x000D_
Array.prototype.forEach()
Override original arrayconst originalArr = ["Iron", "Super", "Ant", "Aqua"];
originalArr.forEach((name, index) => originalArr[index] = `${name}man`);
console.log( "Overridden: %s", originalArr );
_x000D_
From git reset
"pull" or "merge" always leaves the original tip of the current branch in
ORIG_HEAD
.git reset --hard ORIG_HEAD
Resetting hard to it brings your index file and the working tree back to that state, and resets the tip of the branch to that commit.
git reset --merge ORIG_HEAD
After inspecting the result of the merge, you may find that the change in the other branch is unsatisfactory. Running "
git reset --hard ORIG_HEAD
" will let you go back to where you were, but it will discard your local changes, which you do not want. "git reset --merge
" keeps your local changes.
Before any patches are applied, ORIG_HEAD is set to the tip of the current branch.
This is useful if you have problems with multiple commits, like running 'git am
' on the wrong branch or an error in the commits that is more easily fixed by changing the mailbox (e.g. +errors in the "From:" lines).In addition, merge always sets '
.git/ORIG_HEAD
' to the original state of HEAD so a problematic merge can be removed by using 'git reset ORIG_HEAD
'.
Note: from here
HEAD is a moving pointer. Sometimes it means the current branch, sometimes it doesn't.
So HEAD is NOT a synonym for "current branch" everywhere already.
HEAD means "current" everywhere in git, but it does not necessarily mean "current branch" (i.e. detached HEAD).
But it almost always means the "current commit".
It is the commit "git commit
" builds on top of, and "git diff --cached
" and "git status
" compare against.
It means the current branch only in very limited contexts (exactly when we want a branch name to operate on --- resetting and growing the branch tip via commit/rebase/etc.).Reflog is a vehicle to go back in time and time machines have interesting interaction with the notion of "current".
HEAD@{5.minutes.ago}
could mean "dereference HEAD symref to find out what branch we are on RIGHT NOW, and then find out where the tip of that branch was 5 minutes ago".
Alternatively it could mean "what is the commit I would have referred to as HEAD 5 minutes ago, e.g. if I did "git show HEAD" back then".
git1.8.4 (July 2013) introduces introduced a new notation!
(Actually, it will be for 1.8.5, Q4 2013: reintroduced with commit 9ba89f4), by Felipe Contreras.
Instead of typing four capital letters "
HEAD
", you can say "@
" now,
e.g. "git log @
".
See commit cdfd948
Typing '
HEAD
' is tedious, especially when we can use '@
' instead.The reason for choosing '
@
' is that it follows naturally from theref@op
syntax (e.g.HEAD@{u}
), except we have no ref, and no operation, and when we don't have those, it makes sens to assume 'HEAD
'.So now we can use '
git show @~1
', and all that goody goodness.Until now '
@
' was a valid name, but it conflicts with this idea, so let's make it invalid. Probably very few people, if any, used this name.
Use Location Listener Method
@Override
public void onLocationChanged(Location loc) {
Double lat = loc.getLatitude();
Double lng = loc.getLongitude();
}
It's weird. Unicode is a standard, not an encoding. As it is possible to specify the endianness I guess it's effectively UTF-16 or maybe 32.
Where does this menu provide from?
Based on previous answers. I resolved my issue by removing global variable at package level to procedure, since there was no impact in my case.
Original script was
create or replace PACKAGE BODY APPLICATION_VALIDATION AS
V_ERROR_NAME varchar2(200) := '';
PROCEDURE APP_ERROR_X47_VALIDATION ( PROCESS_ID IN VARCHAR2 ) AS BEGIN
------ rules for validation... END APP_ERROR_X47_VALIDATION ;
/* Some more code
*/
END APPLICATION_VALIDATION; /
Rewritten the same without global variable V_ERROR_NAME
and moved to procedure under package level as
Modified Code
create or replace PACKAGE BODY APPLICATION_VALIDATION AS
PROCEDURE APP_ERROR_X47_VALIDATION ( PROCESS_ID IN VARCHAR2 ) AS
**V_ERROR_NAME varchar2(200) := '';**
BEGIN
------ rules for validation... END APP_ERROR_X47_VALIDATION ;
/* Some more code
*/
END APPLICATION_VALIDATION; /
Use image as background sized to layout:
<?xml version="1.0" encoding="utf-8"?>
<FrameLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="wrap_content" >
<ImageView
android:id="@+id/imgPlaylistItemBg"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:adjustViewBounds="true"
android:maxHeight="0dp"
android:scaleType="fitXY"
android:src="@drawable/img_dsh" />
<LinearLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:orientation="vertical" >
</LinearLayout>
</FrameLayout>
Sum all cells
double X=0;
if (datagrid.Rows.Count-1 > 0)
{
for(int i = 0; i < datagrid.Rows.Count-1; i++)
{
for(int j = 0; j < datagrid.Rows.Count-1; j++)
{
X+=Convert.ToDouble(datagrid.Rows[i].Cells[j].Value.ToString());
}
}
}
For folks who are stumbling across Victor Stoddard's answer above in 2019, and become hopeful and doe eyed, note that:
a) Support for X-Content-Duration was removed in Firefox 41: https://developer.mozilla.org/en-US/docs/Mozilla/Firefox/Releases/41#HTTP
b) I think it was only supported in Firefox for .ogg audio and .ogv video, not for any other types.
c) I can't see that it was ever supported at all in Chrome, but that may just be a lack of research on my part. But its presence or absence seems to have no effect one way or another for webm or ogv videos as of today in Chrome 71.
d) I can't find anywhere where 'Content-Duration' replaced 'X-Content-Duration' for anything, I don't think 'X-Content-Duration' lived long enough for there to be a successor header name.
I think this means that, as of today if you want to serve webm or ogv containers that contain streams that don't know their duration (e.g. the output of an ffpeg pipe) to Chrome or FF, and you want them to be scrubbable in an HTML 5 video element, you are probably out of luck. Firefox 64.0 makes a half hearted attempt to make these scrubbable whether or not you serve via range requests, but it gets confused and throws up a spinning wheel until the stream is completely downloaded if you seek a few times more than it thinks is appropriate. Chrome doesn't even try, it just nopes out and won't let you scrub at all until the entire stream is finished playing.
Here is what I have:
def is_prime(num):
if num < 2: return False
elif num < 4: return True
elif not num % 2: return False
elif num < 9: return True
elif not num % 3: return False
else:
for n in range(5, int(math.sqrt(num) + 1), 6):
if not num % n:
return False
elif not num % (n + 2):
return False
return True
It's pretty fast for large numbers, as it only checks against already prime numbers for divisors of a number.
Now if you want to generate a list of primes, you can do:
# primes up to 'max'
def primes_max(max):
yield 2
for n in range(3, max, 2):
if is_prime(n):
yield n
# the first 'count' primes
def primes_count(count):
counter = 0
num = 3
yield 2
while counter < count:
if is_prime(num):
yield num
counter += 1
num += 2
using generators here might be desired for efficiency.
And just for reference, instead of saying:
one = 1
while one == 1:
# do stuff
you can simply say:
while 1:
#do stuff
If you are in ES6 just use the "static" keyword on your method from your example would be the following: static alertMessage: function() {
...
},
Hope can help anyone out there :)
You could also put non-breaking spaces (&nbsp;) in lieu of the spaces so that they're forced to stay together.
How do I wrap this line of text
- asked by Peter 2 days ago
Just add the classes to your html
<div class="someDiv radius opacity"></div>
User
.Add a property to the Response class 'user' with the type of the new class for the user values User
.
public class Response {
public string id { get; set; }
public string text { get; set; }
public string url { get; set; }
public string width { get; set; }
public string height { get; set; }
public string size { get; set; }
public string type { get; set; }
public string timestamp { get; set; }
public User user { get; set; }
}
public class User {
public int id { get; set; }
public string screen_name { get; set; }
}
In general you should make sure the property types of the json and your CLR classes match up. It seems that the structure that you're trying to deserialize contains multiple number values (most likely int
). I'm not sure if the JavaScriptSerializer
is able to deserialize numbers into string fields automatically, but you should try to match your CLR type as close to the actual data as possible anyway.
If you want to use spring jdbctemplate and don't want to deal with connection staff, you can use following:
jdbcTemplate.query("select * from books", new RowCallbackHandler() {
public void processRow(ResultSet resultSet) throws SQLException {
ResultSetMetaData rsmd = resultSet.getMetaData();
for (int i = 1; i <= rsmd.getColumnCount(); i++ ) {
String name = rsmd.getColumnName(i);
// Do stuff with name
}
}
});
If you are using PostgreSQL, you can use ArrayField with a nested ArrayField: https://docs.djangoproject.com/en/2.2/ref/contrib/postgres/fields/
This way, the data structure will be known to the underlying database. Also, the ORM brings special functionality for it.
Note that you will have to create a GIN index by yourself, though (see the above link, further down: https://docs.djangoproject.com/en/2.2/ref/contrib/postgres/fields/#indexing-arrayfield).
(Edit: updated links to newest Django LTS, this feature exists at least since 1.8.)
If you are using Spring, add an argument of type @RequestParam Map<String,String>
to your controller method, and Spring will construct the map for you!
Using importlib
the only thing you've got to add is
from importlib import import_module
from pathlib import Path
__all__ = [
import_module(f".{f.stem}", __package__)
for f in Path(__file__).parent.glob("*.py")
if "__" not in f.stem
]
del import_module, Path
You can adjust the spacing around matplotlib figures using the subplots_adjust() function:
import matplotlib.pyplot as plt
plt.plot(whatever)
plt.subplots_adjust(left=0.1, right=0.9, top=0.9, bottom=0.1)
This will work for both the figure on screen and saved to a file, and it is the right function to call even if you don't have multiple plots on the one figure.
The numbers are fractions of the figure dimensions, and will need to be adjusted to allow for the figure labels.
This is an easy way to do it:
String formato = String.format("%.2f");
It sets the precision to 2 digits.
If you only want to print, use it this way:
System.out.printf("%.2f",123.234);
Try this using HTML like here:
var myDate = window.document.getElementById("startdate").value;
Remove the characters ^
(start of string) and $
(end of string) from the regular expression.
var format = /[!@#$%^&*()_+\-=\[\]{};':"\\|,.<>\/?]/;
Here you will get list of diffrent ways of applying the click event. You can select accordingly as suaitable or if your click is not working just try an alternative out of these.
$('.clickHere').click(function(){
// this is flat click. this event will be attatched
//to element if element is available in
//dom at the time when JS loaded.
// do your stuff
});
$('.clickHere').on('click', function(){
// same as first one
// do your stuff
})
$(document).on('click', '.clickHere', function(){
// this is diffrent type
// of click. The click will be registered on document when JS
// loaded and will delegate to the '.clickHere ' element. This is
// called event delegation
// do your stuff
});
$('body').on('click', '.clickHere', function(){
// This is same as 3rd
// point. Here we used body instead of document/
// do your stuff
});
$('.clickHere').off().on('click', function(){ //
// deregister event listener if any and register the event again. This
// prevents the duplicate event resistration on same element.
// do your stuff
})
If you want to check syntax error for any nginx files, you can use the -c option.
[root@server ~]# sudo nginx -t -c /etc/nginx/my-server.conf
nginx: the configuration file /etc/nginx/my-server.conf syntax is ok
nginx: configuration file /etc/nginx/my-server.conf test is successful
[root@server ~]#
You have more than one form tags with runat="server" on your template, most probably you have one in your master page, remove one on your aspx page, it is not needed if already have form in master page file which is surrounding your content place holders.
Try to remove that tag:
<form id="formID" runat="server">
and of course closing tag:
</form>
There are at least 2 different methods of invoking functions on radio button selection:
1) Using ng-change
directive:
<input type="radio" ng-model="value" value="foo" ng-change='newValue(value)'>
and then, in a controller:
$scope.newValue = function(value) {
console.log(value);
}
Here is the jsFiddle: http://jsfiddle.net/ZPcSe/5/
2) Watching the model for changes. This doesn't require anything special on the input level:
<input type="radio" ng-model="value" value="foo">
but in a controller one would have:
$scope.$watch('value', function(value) {
console.log(value);
});
And the jsFiddle: http://jsfiddle.net/vDTRp/2/
Knowing more about your the use case would help to propose an adequate solution.
**input of list of number for array from single line.
String input = sc.nextLine();
String arr[] = input.split(" ");
int new_arr[] = new int[arr.length];
for(int i=0; i<arr.length; i++)
{
new_arr[i] = Integer.parseInt(arr[i]);
}
$('#carousel-example-generic').on('slid.bs.carousel', function () {_x000D_
$(".item.active:nth-child(" + ($(".carousel-inner .item").length -1) + ") + .item").insertBefore($(".item:first-child"));_x000D_
$(".item.active:last-child").insertBefore($(".item:first-child"));_x000D_
});
_x000D_
.item.active,_x000D_
.item.active + .item,_x000D_
.item.active + .item + .item {_x000D_
width: 33.3%;_x000D_
display: block;_x000D_
float:left;_x000D_
}
_x000D_
<link rel="stylesheet" href="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.6/css/bootstrap.min.css" integrity="sha384-1q8mTJOASx8j1Au+a5WDVnPi2lkFfwwEAa8hDDdjZlpLegxhjVME1fgjWPGmkzs7" crossorigin="anonymous">_x000D_
_x000D_
<div id="carousel-example-generic" class="carousel slide" data-ride="carousel" style="max-width:800px;">_x000D_
<!-- Indicators -->_x000D_
<ol class="carousel-indicators">_x000D_
<li data-target="#carousel-example-generic" data-slide-to="0" class="active"></li>_x000D_
<li data-target="#carousel-example-generic" data-slide-to="1"></li>_x000D_
<li data-target="#carousel-example-generic" data-slide-to="2"></li>_x000D_
</ol>_x000D_
_x000D_
<!-- Wrapper for slides -->_x000D_
<div class="carousel-inner" role="listbox">_x000D_
<div class="item active">_x000D_
<img data-src="holder.js/300x200?text=1">_x000D_
</div>_x000D_
<div class="item">_x000D_
<img data-src="holder.js/300x200?text=2">_x000D_
</div>_x000D_
<div class="item">_x000D_
<img data-src="holder.js/300x200?text=3">_x000D_
</div>_x000D_
<div class="item">_x000D_
<img data-src="holder.js/300x200?text=4">_x000D_
</div>_x000D_
<div class="item">_x000D_
<img data-src="holder.js/300x200?text=5">_x000D_
</div>_x000D_
<div class="item">_x000D_
<img data-src="holder.js/300x200?text=6">_x000D_
</div>_x000D_
<div class="item">_x000D_
<img data-src="holder.js/300x200?text=7">_x000D_
</div> _x000D_
</div>_x000D_
_x000D_
<!-- Controls -->_x000D_
<a class="left carousel-control" href="#carousel-example-generic" role="button" data-slide="prev">_x000D_
<span class="glyphicon glyphicon-chevron-left" aria-hidden="true"></span>_x000D_
<span class="sr-only">Previous</span>_x000D_
</a>_x000D_
<a class="right carousel-control" href="#carousel-example-generic" role="button" data-slide="next">_x000D_
<span class="glyphicon glyphicon-chevron-right" aria-hidden="true"></span>_x000D_
<span class="sr-only">Next</span>_x000D_
</a>_x000D_
</div>_x000D_
<script src="https://ajax.googleapis.com/ajax/libs/jquery/1.11.3/jquery.min.js"></script>_x000D_
<script src="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.6/js/bootstrap.min.js" integrity="sha384-0mSbJDEHialfmuBBQP6A4Qrprq5OVfW37PRR3j5ELqxss1yVqOtnepnHVP9aJ7xS" crossorigin="anonymous"></script>_x000D_
<script src="https://cdnjs.cloudflare.com/ajax/libs/holder/2.9.1/holder.min.js"></script>_x000D_
_x000D_
Why Server.Transfer
? Response.Redirect(Request.RawUrl)
would get you what you need.
Have you tried, after calling DataBind on your DropDownList, to do something like ddl.SelectedIndex = 0 ?
Faced with the same issue when trying to check if a button is disabled. I've tried a variety of approaches, such as btn.disabled
, .is(':disabled')
, .attr('disabled')
, .prop('disabled')
. But no one works for me.
Some, for example .disabled
or .is(':disabled')
returned undefined
and other like .attr('disabled')
returned the wrong result - false
when the button was actually disabled.
But only one technique works for me: .is('[disabled]')
(with square brackets).
So to determine if a button is disabled try this:
$("#myButton").is('[disabled]');
You can directly define a char type vector as below.
vector<char> c = {'a', 'b', 'c'};
vector < vector<char> > t = {{'a','a'}, 'b','b'};
You don't need JDK
to run Java based programs. JDK
is for development which stands for Java Development Kit
.
You need JRE
which should be there in Mac.
Try: java -jar Myjar_file.jar
EDIT: According to this article, for Mac OS 10
The Java runtime is no longer installed automatically as part of the OS installation.
Then, you need to install JRE to your machine.
I am adding code to accomplish this: It is working fine for me:
# This works in python 3
# required python packages
# tabula-py==1.0.0
# PyPDF2==1.26.0
# Pillow==4.0.0
# pdfminer.six==20170720
import os
import shutil
import warnings
from io import StringIO
import requests
import tabula
from PIL import Image
from PyPDF2 import PdfFileWriter, PdfFileReader
from pdfminer.converter import TextConverter
from pdfminer.layout import LAParams
from pdfminer.pdfinterp import PDFResourceManager, PDFPageInterpreter
from pdfminer.pdfpage import PDFPage
warnings.filterwarnings("ignore")
def download_file(url):
local_filename = url.split('/')[-1]
local_filename = local_filename.replace("%20", "_")
r = requests.get(url, stream=True)
print(r)
with open(local_filename, 'wb') as f:
shutil.copyfileobj(r.raw, f)
return local_filename
class PDFExtractor():
def __init__(self, url):
self.url = url
# Downloading File in local
def break_pdf(self, filename, start_page=-1, end_page=-1):
pdf_reader = PdfFileReader(open(filename, "rb"))
# Reading each pdf one by one
total_pages = pdf_reader.numPages
if start_page == -1:
start_page = 0
elif start_page < 1 or start_page > total_pages:
return "Start Page Selection Is Wrong"
else:
start_page = start_page - 1
if end_page == -1:
end_page = total_pages
elif end_page < 1 or end_page > total_pages - 1:
return "End Page Selection Is Wrong"
else:
end_page = end_page
for i in range(start_page, end_page):
output = PdfFileWriter()
output.addPage(pdf_reader.getPage(i))
with open(str(i + 1) + "_" + filename, "wb") as outputStream:
output.write(outputStream)
def extract_text_algo_1(self, file):
pdf_reader = PdfFileReader(open(file, 'rb'))
# creating a page object
pageObj = pdf_reader.getPage(0)
# extracting extract_text from page
text = pageObj.extractText()
text = text.replace("\n", "").replace("\t", "")
return text
def extract_text_algo_2(self, file):
pdfResourceManager = PDFResourceManager()
retstr = StringIO()
la_params = LAParams()
device = TextConverter(pdfResourceManager, retstr, codec='utf-8', laparams=la_params)
fp = open(file, 'rb')
interpreter = PDFPageInterpreter(pdfResourceManager, device)
password = ""
max_pages = 0
caching = True
page_num = set()
for page in PDFPage.get_pages(fp, page_num, maxpages=max_pages, password=password, caching=caching,
check_extractable=True):
interpreter.process_page(page)
text = retstr.getvalue()
text = text.replace("\t", "").replace("\n", "")
fp.close()
device.close()
retstr.close()
return text
def extract_text(self, file):
text1 = self.extract_text_algo_1(file)
text2 = self.extract_text_algo_2(file)
if len(text2) > len(str(text1)):
return text2
else:
return text1
def extarct_table(self, file):
# Read pdf into DataFrame
try:
df = tabula.read_pdf(file, output_format="csv")
except:
print("Error Reading Table")
return
print("\nPrinting Table Content: \n", df)
print("\nDone Printing Table Content\n")
def tiff_header_for_CCITT(self, width, height, img_size, CCITT_group=4):
tiff_header_struct = '<' + '2s' + 'h' + 'l' + 'h' + 'hhll' * 8 + 'h'
return struct.pack(tiff_header_struct,
b'II', # Byte order indication: Little indian
42, # Version number (always 42)
8, # Offset to first IFD
8, # Number of tags in IFD
256, 4, 1, width, # ImageWidth, LONG, 1, width
257, 4, 1, height, # ImageLength, LONG, 1, lenght
258, 3, 1, 1, # BitsPerSample, SHORT, 1, 1
259, 3, 1, CCITT_group, # Compression, SHORT, 1, 4 = CCITT Group 4 fax encoding
262, 3, 1, 0, # Threshholding, SHORT, 1, 0 = WhiteIsZero
273, 4, 1, struct.calcsize(tiff_header_struct), # StripOffsets, LONG, 1, len of header
278, 4, 1, height, # RowsPerStrip, LONG, 1, lenght
279, 4, 1, img_size, # StripByteCounts, LONG, 1, size of extract_image
0 # last IFD
)
def extract_image(self, filename):
number = 1
pdf_reader = PdfFileReader(open(filename, 'rb'))
for i in range(0, pdf_reader.numPages):
page = pdf_reader.getPage(i)
try:
xObject = page['/Resources']['/XObject'].getObject()
except:
print("No XObject Found")
return
for obj in xObject:
try:
if xObject[obj]['/Subtype'] == '/Image':
size = (xObject[obj]['/Width'], xObject[obj]['/Height'])
data = xObject[obj]._data
if xObject[obj]['/ColorSpace'] == '/DeviceRGB':
mode = "RGB"
else:
mode = "P"
image_name = filename.split(".")[0] + str(number)
print(xObject[obj]['/Filter'])
if xObject[obj]['/Filter'] == '/FlateDecode':
data = xObject[obj].getData()
img = Image.frombytes(mode, size, data)
img.save(image_name + "_Flate.png")
# save_to_s3(imagename + "_Flate.png")
print("Image_Saved")
number += 1
elif xObject[obj]['/Filter'] == '/DCTDecode':
img = open(image_name + "_DCT.jpg", "wb")
img.write(data)
# save_to_s3(imagename + "_DCT.jpg")
img.close()
number += 1
elif xObject[obj]['/Filter'] == '/JPXDecode':
img = open(image_name + "_JPX.jp2", "wb")
img.write(data)
# save_to_s3(imagename + "_JPX.jp2")
img.close()
number += 1
elif xObject[obj]['/Filter'] == '/CCITTFaxDecode':
if xObject[obj]['/DecodeParms']['/K'] == -1:
CCITT_group = 4
else:
CCITT_group = 3
width = xObject[obj]['/Width']
height = xObject[obj]['/Height']
data = xObject[obj]._data # sorry, getData() does not work for CCITTFaxDecode
img_size = len(data)
tiff_header = self.tiff_header_for_CCITT(width, height, img_size, CCITT_group)
img_name = image_name + '_CCITT.tiff'
with open(img_name, 'wb') as img_file:
img_file.write(tiff_header + data)
# save_to_s3(img_name)
number += 1
except:
continue
return number
def read_pages(self, start_page=-1, end_page=-1):
# Downloading file locally
downloaded_file = download_file(self.url)
print(downloaded_file)
# breaking PDF into number of pages in diff pdf files
self.break_pdf(downloaded_file, start_page, end_page)
# creating a pdf reader object
pdf_reader = PdfFileReader(open(downloaded_file, 'rb'))
# Reading each pdf one by one
total_pages = pdf_reader.numPages
if start_page == -1:
start_page = 0
elif start_page < 1 or start_page > total_pages:
return "Start Page Selection Is Wrong"
else:
start_page = start_page - 1
if end_page == -1:
end_page = total_pages
elif end_page < 1 or end_page > total_pages - 1:
return "End Page Selection Is Wrong"
else:
end_page = end_page
for i in range(start_page, end_page):
# creating a page based filename
file = str(i + 1) + "_" + downloaded_file
print("\nStarting to Read Page: ", i + 1, "\n -----------===-------------")
file_text = self.extract_text(file)
print(file_text)
self.extract_image(file)
self.extarct_table(file)
os.remove(file)
print("Stopped Reading Page: ", i + 1, "\n -----------===-------------")
os.remove(downloaded_file)
# I have tested on these 3 pdf files
# url = "http://s3.amazonaws.com/NLP_Project/Original_Documents/Healthcare-January-2017.pdf"
url = "http://s3.amazonaws.com/NLP_Project/Original_Documents/Sample_Test.pdf"
# url = "http://s3.amazonaws.com/NLP_Project/Original_Documents/Sazerac_FS_2017_06_30%20Annual.pdf"
# creating the instance of class
pdf_extractor = PDFExtractor(url)
# Getting desired data out
pdf_extractor.read_pages(15, 23)
I changed @angular-devkit/build-angular": "0.9.0.1"
to @angular-devkit/build-angular": "0.13.4"
and it worked.
I would have said:
select s.stname, s2.subname, highmarks.mark
from students s
join marks m on s.stid = m.stid
join Subject s2 on m.subid = s2.subid
join (select subid, max(mark) as mark
from marks group by subid) as highmarks
on highmarks.subid = m.subid and highmarks.mark = m.mark
order by subname, stname;
SQLFiddle here: http://sqlfiddle.com/#!2/5ef84/3
This is a:
Only the students that get maximum marks will meet all three join conditions. This lists all students who got that maximum mark, so if there are ties, both get listed.
An example (axios_example.js) using Axios in Node.js:
const axios = require('axios');
const express = require('express');
const app = express();
const port = process.env.PORT || 5000;
app.get('/search', function(req, res) {
let query = req.query.queryStr;
let url = `https://your.service.org?query=${query}`;
axios({
method:'get',
url,
auth: {
username: 'xxxxxxxxxxxxx',
password: 'xxxxxxxxxxxxx'
}
})
.then(function (response) {
res.send(JSON.stringify(response.data));
})
.catch(function (error) {
console.log(error);
});
});
var server = app.listen(port);
Be sure in your project directory you do:
npm init
npm install express
npm install axios
node axios_example.js
You can then test the Node.js REST API using your browser at: http://localhost:5000/search?queryStr=xxxxxxxxx
If you are refering to res strings, use CDATA with \n.
<string name="about">
<![CDATA[
Author: Sergio Abreu\n
http://sites.sitesbr.net
]]>
</string>
such as this kind of dataframe, there are two levels of thecolumn name:
shop_id item_id date_block_num item_cnt_day
target
0 0 30 1 31
we can use this code:
df.columns = [col[0] if col[-1]=='' else col[-1] for col in df.columns.values]
result is:
shop_id item_id date_block_num target
0 0 30 1 31
Step 1 :- GO to My Apps App in iTunes Connect
Here you can see your all app which are currently on Appstore.
Step 2 :- Select your app which you want to delete.(click on app-name)
Step 3 :- Select Pricing and Availability Tab.
Step 4 :- Select Remove from sale option.
Step 5 :- Click on save Button.
Now you will see below your app like , Developer Removed it from sale in Red Symbol in place of Green.
Step 6 :- Now again Select your app and Go to App information Tab. you will see Delete App option. (need to scroll bit bottom)
Step 7 :- After clicking on Delete button you will get warning like this ,
Step 8 :- Click on Delete button.
Congratulation , You have Permanently deleted your app successfully from appstore. Now , you cant able to see app on appstore aswellas in your developer account.
Note :-
When you have selected only Remove from sale option you have not deleted app permanently. You can able to make your app live again by clicking on Available in all territories option Again.
If you need to do it with a set number of columns, H.B.'s way is best. But if you don't know how many columns you are dealing with until runtime, then the below code [read: hack] will work. I am not sure if there is a better solution with an unknown number of columns. It took me two days working at it off and on to get it, so I'm sticking with it regardless.
C#
public class ValueToBrushConverter : IValueConverter
{
public object Convert(object value, Type targetType, object parameter, System.Globalization.CultureInfo culture)
{
int input;
try
{
DataGridCell dgc = (DataGridCell)value;
System.Data.DataRowView rowView = (System.Data.DataRowView)dgc.DataContext;
input = (int)rowView.Row.ItemArray[dgc.Column.DisplayIndex];
}
catch (InvalidCastException e)
{
return DependencyProperty.UnsetValue;
}
switch (input)
{
case 1: return Brushes.Red;
case 2: return Brushes.White;
case 3: return Brushes.Blue;
default: return DependencyProperty.UnsetValue;
}
}
public object ConvertBack(object value, Type targetType, object parameter, System.Globalization.CultureInfo culture)
{
throw new NotSupportedException();
}
}
XAML
<UserControl.Resources>
<conv:ValueToBrushConverter x:Key="ValueToBrushConverter"/>
<Style x:Key="CellStyle" TargetType="DataGridCell">
<Setter Property="Background" Value="{Binding RelativeSource={RelativeSource Self}, Converter={StaticResource ValueToBrushConverter}}" />
</Style>
</UserControl.Resources>
<DataGrid x:Name="dataGrid" CellStyle="{StaticResource CellStyle}">
</DataGrid>
I experienced this error on a Jenkins build server running MSBuild, which outputs the build files to a separate folder location (_PublishedWebsites). Exactly the same - the roslyn folder was not in the bin directory, and all the roslyn files were lumped in with the bin files.
@igor-semin 's answer was the only thing that worked for me (as I am using the C# 6 language features, I cannot simply uninstall the nuget packages as per other answers), but as I am also running CodeAnalysis, I was getting another error on my deployment target server:
An attempt to override an existing mapping was detected for type Microsoft.CodeAnalysis.ICompilationUnitSyntax with name "", currently mapped to type Microsoft.CodeAnalysis.CSharp.Syntax.CompilationUnitSyntax, to type Microsoft.CodeAnalysis.VisualBasic.Syntax.CompilationUnitSyntax.
The reason for this is that as the roslyn files are getting dumped into the main bin directory, when you run the xcopy to recreate them in the nested roslyn folder, you now have 2 copies of these files being compiled and there is a clash between them. After much frustration I decided on a 'hack' fix - an additional post-build task to delete these files from the bin directory, removing the conflict.
The .csproj of my offending projects now looks like:
................... more here ......................
<PropertyGroup>
<PostBuildEvent>
if not exist "$(WebProjectOutputDir)\bin\Roslyn" md "$(WebProjectOutputDir)\bin\Roslyn"
start /MIN xcopy /s /y /R "$(OutDir)roslyn\*.*" "$(WebProjectOutputDir)\bin\Roslyn"
</PostBuildEvent>
</PropertyGroup>
<Target Name="DeleteDuplicateAnalysisFiles" AfterTargets="AfterBuild">
<!-- Jenkins now has copies of the following files in both the bin directory and the 'bin\rosyln' directory. Delete from bin. -->
<ItemGroup>
<FilesToDelete Include="$(WebProjectOutputDir)\bin\Microsoft.CodeAnalysis*.dll" />
</ItemGroup>
<Delete Files="@(FilesToDelete)" />
</Target>
................... more here ......................
If I understand your question correctly, you are asking how you can create class level constants (static - in C++ parlance) such that you don't a) replicate the overhead in every instance, and b have to recompute what is otherwise constant.
The language has evolved - as every reader knows, but as I test this in Xcode 6.3.1, the solution is:
import Swift
class MyClass {
static let testStr = "test"
static let testStrLen = count(testStr)
init() {
println("There are \(MyClass.testStrLen) characters in \(MyClass.testStr)")
}
}
let a = MyClass()
// -> There are 4 characters in test
I don't know if the static is strictly necessary as the compiler surely only adds only one entry per const variable into the static section of the binary, but it does affect syntax and access. By using static, you can refer to it even when you don't have an instance: MyClass.testStrLen
.
I used Ataturk's font like this. I didn't use "TTF" version. I translated orginal font version ("otf" version) to "eot" and "woof" version. Then It works in local but not working when I uploaded the files to server. So I added "TTF" version too like this. Now, It's working on Chrome and Firefox but Internet Explorer still defence. When you installed on your computer "Ataturk" font, then working IE too. But I wanted to use this font without installing.
@font-face {
font-family: 'Ataturk';
font-style: normal;
font-weight: normal;
src: url('font/ataturk.eot');
src: local('Ataturk Regular'), url('font/ataturk.ttf') format('truetype'),
url('font/ataturk.woff') format('woff');
}
You can see it on my website here: http://www.canotur.com
One option is to put the character literally in your script, e.g.:
const omega = 'O';
This requires that you let the browser know the correct source encoding, see Unicode in JavaScript
However, if you can't or don't want to do this (e.g. because the character is too exotic and can't be expected to be available in the code editor font), the safest option may be to use new-style string escape or String.fromCodePoint
:
const omega = '\u{3a9}';
// or:
const omega = String.fromCodePoint(0x3a9);
This is not restricted to UTF-16 but works for all unicode code points. In comparison, the other approaches mentioned here have the following downsides:
const omega = 'Ω';
): only work when rendered unescaped in an HTML elementconst omega = '\u03A9';
): restricted to UTF-16String.fromCharCode
: restricted to UTF-16The way I have done this is to give the user permission to the tables that I didn't want them to have access to. Then fine tune the select permission in SSMS by only allowing select permission to the columns that are in my view. This way, the select clause on the table is only limited to the columns that they see in the view anyways.
Shaji
JSONArray ja = new JSONArray(json);
JSONObject ob = ja.getJSONObject(0);
String nh = ob.getString("status");
[ { "status" : "true" } ]
where 'json' is a String and status is the key from which i will get value
As long as your list is initialized with values and that value actually exists in the list, then Contains should return true.
I tried the following:
var list = new List<int> {1,2,3,4,5};
var intVar = 4;
var exists = list.Contains(intVar);
And exists is indeed set to true.
Adjusting the currentScale attribute works in IE ( I tested with IE 11), but not in Chrome.
The answer of @PeterOlson may be worked back in the day but it looks like
Object.create
is changed. I would go for the copy-constructor way like @user166390 said in the comments.
The reason I necromanced this post is because I needed such implementation.
Nowadays we can use Object.assign
(credits to @SayanPal solution) & ES6 syntax:
class Person {
constructor(obj) {
obj && Object.assign(this, obj);
}
getFullName() {
return `${this.lastName} ${this.firstName}`;
}
}
Usage:
const newPerson = new Person(person1)
newPerson.getFullName() // -> Freeman Gordon
ES5 answer below
function Person(obj) {
for(var prop in obj){
// for safety you can use the hasOwnProperty function
this[prop] = obj[prop];
}
}
Usage:
var newPerson = new Person(person1);
console.log(newPerson.getFullName()); // -> Freeman Gordon
Using a shorter version, 1.5 liner:
function Person(){
if(arguments[0]) for(var prop in arguments[0]) this[prop] = arguments[0][prop];
}
Important Answar
String name;
int roll;
public int compare(Object obj1,Object obj2) { // For Comparator interface
return obj1.compareTo(obj1);
}
public int compareTo(Object obj1) { // For Comparable Interface
return obj1.compareTo(obj);
}
Here in return obj1.compareTo(obj1)
or return obj1.compareTo(obj)
statement
only take Object; primitive is not allowed.
For Example
name.compareTo(obj1.getName()) // Correct Statement.
But
roll.compareTo(obj1.getRoll())
// Wrong Statement Compile Time Error Because roll
// is not an Object Type, it is primitive type.
name is String Object so it worked. If you want to sort roll number of student than use below code.
public int compareTo(Object obj1) { // For Comparable Interface
Student s = (Student) obj1;
return rollno - s.getRollno();
}
or
public int compare(Object obj1,Object obj2) { // For Comparator interface
Student s1 = (Student) obj1;
Student s2 = (Student) obj2;
return s1.getRollno() - s2.getRollno();
}
Combining answers https://stackoverflow.com/a/8462/1037948 (declaration via bit-shifting) and https://stackoverflow.com/a/9117/1037948 (using combinations in declaration) you can bit-shift previous values rather than using numbers. Not necessarily recommending it, but just pointing out you can.
Rather than:
[Flags]
public enum Options : byte
{
None = 0,
One = 1 << 0, // 1
Two = 1 << 1, // 2
Three = 1 << 2, // 4
Four = 1 << 3, // 8
// combinations
OneAndTwo = One | Two,
OneTwoAndThree = One | Two | Three,
}
You can declare
[Flags]
public enum Options : byte
{
None = 0,
One = 1 << 0, // 1
// now that value 1 is available, start shifting from there
Two = One << 1, // 2
Three = Two << 1, // 4
Four = Three << 1, // 8
// same combinations
OneAndTwo = One | Two,
OneTwoAndThree = One | Two | Three,
}
Confirming with LinqPad:
foreach(var e in Enum.GetValues(typeof(Options))) {
string.Format("{0} = {1}", e.ToString(), (byte)e).Dump();
}
Results in:
None = 0
One = 1
Two = 2
OneAndTwo = 3
Three = 4
OneTwoAndThree = 7
Four = 8
You can use PHP filesize function. During upload using ajax, please check the filesize first by making a request an ajax request to php script that checks the filesize and return the value.
You could try count(*)
Integer count = (Integer) session.createQuery("select count(*) from Books").uniqueResult();
Where Books
is the name off the class
- not the table in the database.
Looking at the neural network from the outside, it is just a function that takes some arguments and produces a result. As with all functions, it has a domain (i.e. a set of legal arguments). You have to normalize the values that you want to pass to the neural net in order to make sure it is in the domain. As with all functions, if the arguments are not in the domain, the result is not guaranteed to be appropriate.
The exact behavior of the neural net on arguments outside of the domain depends on the implementation of the neural net. But overall, the result is useless if the arguments are not within the domain.
Angular 1.3 will have ng-model-options debounce, but until then, you have to use a timer like Josue Ibarra said. However, in his code he launches a timer on every key press. Also, he is using setTimeout, when in Angular one has to use $timeout or use $apply at the end of setTimeout.
String param="2019-07-18 19:29:37";
param="%27"+param.trim().replace(" ", "%20")+"%27";
I observed in case of Datetime (Timestamp)
URLEncoder.encode(param,"UTF-8")
does not work.
It's a surprisingly little-known feature of C++ (as evidenced by the fact that no-one has given this as an answer yet), but it actually has special syntax for value-initializing an array:
new int[10]();
Note that you must use the empty parentheses — you cannot, for example, use (0)
or anything else (which is why this is only useful for value initialization).
This is explicitly permitted by ISO C++03 5.3.4[expr.new]/15, which says:
A new-expression that creates an object of type
T
initializes that object as follows:...
- If the new-initializer is of the form
()
, the item is value-initialized (8.5);
and does not restrict the types for which this is allowed, whereas the (expression-list)
form is explicitly restricted by further rules in the same section such that it does not allow array types.
Here is a solution that creates an empty dataframe in pyspark 2.0.0 or more.
from pyspark.sql import SQLContext
sc = spark.sparkContext
schema = StructType([StructField('col1', StringType(),False),StructField('col2', IntegerType(), True)])
sqlContext.createDataFrame(sc.emptyRDD(), schema)
If someone comes looking for configuring log4j2 programmatically in Java, then this link could help: (https://www.studytonight.com/post/log4j2-programmatic-configuration-in-java-class)
Here is the basic code for configuring a Console Appender:
ConfigurationBuilder<BuiltConfiguration> builder = ConfigurationBuilderFactory.newConfigurationBuilder();
builder.setStatusLevel(Level.DEBUG);
// naming the logger configuration
builder.setConfigurationName("DefaultLogger");
// create a console appender
AppenderComponentBuilder appenderBuilder = builder.newAppender("Console", "CONSOLE")
.addAttribute("target", ConsoleAppender.Target.SYSTEM_OUT);
// add a layout like pattern, json etc
appenderBuilder.add(builder.newLayout("PatternLayout")
.addAttribute("pattern", "%d %p %c [%t] %m%n"));
RootLoggerComponentBuilder rootLogger = builder.newRootLogger(Level.DEBUG);
rootLogger.add(builder.newAppenderRef("Console"));
builder.add(appenderBuilder);
builder.add(rootLogger);
Configurator.reconfigure(builder.build());
This will reconfigure the default rootLogger and will also create a new appender.
Sure - just don't use the Sun base64 encoder/decoder. There are plenty of other options available, including Apache Codec or this public domain implementation.
Then read why you shouldn't use sun.* packages.
While creating a Virtual Device select the ARM system Image. Others have suggested to install HAXM, but the truth is haxm wont work on amd platform or even if it does as android studio does not supports amd-vt on windows the end result will still be a very very slow emulator to run and operate. My recommendation would be to either use alternative emulator like Genymotion (works like a charm with Gapps installed) or switch to linux as then you will get the benefit of amd-vt and emulator will run a lot faster.
After making the change suggested above by Martin, I was still getting the same error. I had to make an additional change to my parsing code. I was parsing the XML file via a DocumentBuilder as shown in the oracle docs: https://docs.oracle.com/javase/7/docs/api/javax/xml/validation/package-summary.html
// parse an XML document into a DOM tree
DocumentBuilder parser = DocumentBuilderFactory.newInstance().newDocumentBuilder();
Document document = parser.parse(new File("example.xml"));
The problem was that DocumentBuilder is not namespace aware by default. The following additional change resolved the issue:
// parse an XML document into a DOM tree
DocumentBuilderFactory dmfactory = DocumentBuilderFactory.newInstance();
dmfactory.setNamespaceAware(true);
DocumentBuilder parser = dmfactory.newDocumentBuilder();
Document document = parser.parse(new File("example.xml"));
You should check out this plugin:
https://github.com/kemayo/maphilight
and the demo:
http://davidlynch.org/js/maphilight/docs/demo_usa.html
if anything, you might be able to borrow some code from it to fix yours.
You could use this syntax which is functionally equivalent:
switch (true) {
case condition1:
//e.g. if (condition1 === true)
break;
case condition2:
//e.g. elseif (condition2 === true)
break;
default:
//e.g. else
}
This works because each condition
is fully evaluated before comparison with the switch
value, so the first one that evaluates to true
will match and its branch will execute. Subsequent branches will not execute, provided you remember to use break
.
Note that strict comparison is used, so a branch whose condition
is merely "truthy" will not be executed. You can cast a truthy value to true
with double negation: !!condition
.
just to add some clarity, you need to stage changes with git add
, then amend last commit:
git add /path/to/modified/files
git commit --amend --no-edit
This is especially useful for if you forgot to add some changes in last commit or when you want to add more changes without creating new commits by reusing the last commit.
Use 'Smalldatetime' data type
select convert(smalldatetime, getdate())
will fetch
2015-01-08 15:27:00
If you decorate the User
class with the XmlType
to match the required capitalization:
[XmlType("user")]
public class User
{
...
}
Then the XmlRootAttribute
on the XmlSerializer
ctor can provide the desired root and allow direct reading into List<>:
// e.g. my test to create a file
using (var writer = new FileStream("users.xml", FileMode.Create))
{
XmlSerializer ser = new XmlSerializer(typeof(List<User>),
new XmlRootAttribute("user_list"));
List<User> list = new List<User>();
list.Add(new User { Id = 1, Name = "Joe" });
list.Add(new User { Id = 2, Name = "John" });
list.Add(new User { Id = 3, Name = "June" });
ser.Serialize(writer, list);
}
...
// read file
List<User> users;
using (var reader = new StreamReader("users.xml"))
{
XmlSerializer deserializer = new XmlSerializer(typeof(List<User>),
new XmlRootAttribute("user_list"));
users = (List<User>)deserializer.Deserialize(reader);
}
Set the Dropdown arrow image to spinner like this :
<Spinner
android:id="@+id/Exam_Course"
android:layout_width="320dp"
android:background="@drawable/spinner_bg"
android:layout_height="wrap_content"/>
Here android:background="@drawable/spinner_bg" the spinner_bg is the Dropdown arrow image.
Dir seems to be very fast.
Sub LoopThroughFiles()
Dim MyObj As Object, MySource As Object, file As Variant
file = Dir("c:\testfolder\")
While (file <> "")
If InStr(file, "test") > 0 Then
MsgBox "found " & file
Exit Sub
End If
file = Dir
Wend
End Sub
While the official docs are happy not to provide switch, I have seen a solution using dictionaries.
For example:
# define the function blocks
def zero():
print "You typed zero.\n"
def sqr():
print "n is a perfect square\n"
def even():
print "n is an even number\n"
def prime():
print "n is a prime number\n"
# map the inputs to the function blocks
options = {0 : zero,
1 : sqr,
4 : sqr,
9 : sqr,
2 : even,
3 : prime,
5 : prime,
7 : prime,
}
Then the equivalent switch block is invoked:
options[num]()
This begins to fall apart if you heavily depend on fall through.
Adding the following two lines in the script solved the issue for me.
# !/usr/bin/python
# coding=utf-8
Hope it helps !
1.Clear browser cache in browser developer tools 2.Under Network tab – select Disable cache option 3.Restarted browser 4.Force reload Js file command+shift+R in mac Make sure the fresh war is deployed properly on the Server side
Commonly base64 it is used for images. if you like to decode an image (jpg in this example with org.apache.commons.codec.binary.Base64 package):
byte[] decoded = Base64.decodeBase64(imageJpgInBase64);
FileOutputStream fos = null;
fos = new FileOutputStream("C:\\output\\image.jpg");
fos.write(decoded);
fos.close();
I had to set the JVM timezone for Windows 2003 Server because it always returned GMT for new Date();
-Duser.timezone=America/Los_Angeles
Or your appropriate time zone. Finding a list of time zones proved to be a bit challenging also...
Here are two list;
http://wrapper.tanukisoftware.com/doc/english/prop-timezone.html
A succinct one-liner:
var max = anArray.Select((n, i) => (Number: n, Index: i)).Max();
Test case:
var anArray = new int[] { 1, 5, 7, 4, 2 };
var max = anArray.Select((n, i) => (Number: n, Index: i)).Max();
Console.WriteLine($"Maximum number = {max.Number}, on index {max.Index}.");
// Maximum number = 7, on index 2.
Features:
Remarks:
If you post JSON with content type application/json
, use request.get_json()
to get it in Flask. If the content type is not correct, None
is returned. If the data is not JSON, an error is raised.
@app.route("/something", methods=["POST"])
def do_something():
data = request.get_json()
The browser is still submitting the form after your code runs.
Add return false;
to the handler to prevent that.
One use where I found CTE's excelled performance wise was where I needed to join a relatively complex Query on to a few tables which had a few million rows each.
I used the CTE to first select the subset based of the indexed columns to first cut these tables down to a few thousand relevant rows each and then joined the CTE to my main query. This exponentially reduced the runtime of my query.
Whilst results for the CTE are not cached and table variables might have been a better choice I really just wanted to try them out and found the fit the above scenario.
When creating subdirectories hanging off from a non-existing parent directory(s) you must pass the -p
flag to mkdir
... Please update your Dockerfile with
RUN mkdir -p ...
I tested this and it's correct.
The only problem could be if one day
map[key] = value
will transform to -
map[key]++;
and that will cause a KeyNotFoundException.
Since I have recently developed an Android application using gyroscope data (steady compass), I tried to collect a list with such devices. This is not an exhaustive list at all, but it is what I have so far:
*** Phones:
*** Tablets:
Hope the list keeps growing and hope that gyros will be soon available on mid and low price smartphones.
Use transform: rotate(90deg)
:
#container_2 {_x000D_
border: 1px solid;_x000D_
padding: .5em;_x000D_
width: 5em;_x000D_
height: 5em;_x000D_
transition: .3s all; /* rotate gradually instead of instantly */_x000D_
}_x000D_
_x000D_
#container_2:hover {_x000D_
-webkit-transform: rotate(90deg); /* to support Safari and Android browser */_x000D_
-ms-transform: rotate(90deg); /* to support IE 9 */_x000D_
transform: rotate(90deg);_x000D_
}
_x000D_
<div id="container_2">This box should be rotated 90° on hover.</div>
_x000D_
Click "Run code snippet", then hover over the box to see the effect of the transform.
Realistically, no other prefixed entries are needed. See Can I use CSS3 Transforms?
This promise will not resolve if the argument of JSON.parse() can not be parsed into a JSON object.
Promise.resolve(JSON.parse('{"key":"value"}')).then(json => {
console.log(json);
}).catch(err => {
console.log(err);
});
right click somewhere on the file or in project explorer and choose 'run as'->'java application'
I have solved it using "force update", pressing Alt+F5 as it is mentioned in the following link.
I found the smoothest way to achieve this was using Pageant as the SSH agent and plink.
You need to have a putty session configured for the hostname that is used in your remote.
You will also need plink.exe which can be downloaded from the same site as putty.
And you need Pageant running with your key loaded. I have a shortcut to pageant in my startup folder that loads my SSH key when I log in.
When you install git-scm you can then specify it to use tortoise/plink rather than OpenSSH.
The net effect is you can open git-bash whenever you like and push/pull without being challenged for passphrases.
Same applies with putty and WinSCP sessions when pageant has your key loaded. It makes life a hell of a lot easier (and secure).
Following steps helped me solve the issue.
If you would like to use thumbnail through pure js/jquery no api, you can use this tool to capture a frame from the video and voila! Insert url thumb in which ever source you like.
Here is a code pen :
<img src="https://i.vimeocdn.com/video/531141496_640.jpg"` alt="" />
Here is the site to get thumbnail:
Parsing can be considered as a synonym of "Breaking down into small pieces" and then analysing what is there or using it in a modified way. In Java, Strings are parsed into Decimal, Octal, Binary, Hexadecimal, etc. It is done if your application is taking input from the user in the form of string but somewhere in your application you want to use that input in the form of an integer or of double type. It is not same as type casting. For type casting the types used should be compatible in order to caste but nothing such in parsing.
You can do it with using a FileOutputStream
and the writeTo
method.
ByteArrayOutputStream byteArrayOutputStream = getByteStreamMethod();
try(OutputStream outputStream = new FileOutputStream("thefilename")) {
byteArrayOutputStream.writeTo(outputStream);
}
Source: "Creating a file from ByteArrayOutputStream in Java." on Code Inventions
Immutable :
When you do some operation on a object, it creates a new object hence state is not modifiable as in case of string.
Mutable
When you perform some operation on a object, object itself modified no new obect created as in case of StringBuilder
This actually is possible, and I discovered how quite by accident while designing my first large-scale responsive design site.
<div class="wrapper">
<div class="box">
<img src="/logo.png" alt="">
</div>
</div>
.wrapper { position:relative; overflow:hidden; }
.box { float:left; } //Note: 'float:right' would work too
.box > img { width:50%; }
The overflow:hidden gives the wrapper height and width, despite the floating contents, without using the clearfix hack. You can then position your content using margins. You can even make the wrapper div an inline-block.
SolidColorBrush brush = new SolidColorBrush( Color.FromArgb(255,255,139,0) )
From the XAMPP panel, click on the ADMIN button on the Apache site. Then choose to edit php.ini And add the missing post_max_size to a value you are comfortable with.
post_max_size = 100M
I use task shadowJar
by plugin .
com.github.jengelman.gradle.plugins:shadow:5.2.0
Usage just run ./gradlew app::shadowJar
result file will be at MyProject/app/build/libs/shadow.jar
top level build.gradle
file :
apply plugin: 'kotlin'
buildscript {
ext.kotlin_version = '1.3.61'
repositories {
mavenLocal()
mavenCentral()
jcenter()
}
dependencies {
classpath "org.jetbrains.kotlin:kotlin-gradle-plugin:$kotlin_version"
classpath 'com.github.jengelman.gradle.plugins:shadow:5.2.0'
}
}
app module level build.gradle
file
apply plugin: 'java'
apply plugin: 'kotlin'
apply plugin: 'kotlin-kapt'
apply plugin: 'application'
apply plugin: 'com.github.johnrengelman.shadow'
sourceCompatibility = 1.8
kapt {
generateStubs = true
}
dependencies {
implementation fileTree(dir: 'libs', include: ['*.jar'])
implementation "org.seleniumhq.selenium:selenium-java:4.0.0-alpha-4"
shadow "org.seleniumhq.selenium:selenium-java:4.0.0-alpha-4"
implementation project(":module_remote")
shadow project(":module_remote")
}
jar {
exclude 'META-INF/*.SF', 'META-INF/*.DSA', 'META-INF/*.RSA', 'META-INF/*.MF'
manifest {
attributes(
'Main-Class': 'com.github.kolyall.TheApplication',
'Class-Path': configurations.compile.files.collect { "lib/$it.name" }.join(' ')
)
}
}
shadowJar {
baseName = 'shadow'
classifier = ''
archiveVersion = ''
mainClassName = 'com.github.kolyall.TheApplication'
mergeServiceFiles()
}
The latest dwr (http://directwebremoting.org/dwr/index.html) has ajax file uploads, complete with examples and nice stuff for users (like progress indicators and such).
It looks pretty nifty and dwr is fairly easy to use in general so this will be pretty good as well.
Follow these steps by the method SOAP
From the WSDL file,
create SOAP Request templates for each Request.
Then substitute the values to be passed in code.
POST this data to the service end point using DefaultHttpClient instance.
Get the response stream and finally
Parse the Response Stream using an XML Pull parser.
just add onclick handler for anchor tag
onclick="this.parentNode.style.display = 'none'"
or change onclick handler for img tag
onclick="this.parentNode.parentNode.style.display = 'none'"
Another solution, declare your controller as UITextFieldDelegate, implement this call-back:
@IBOutlet weak var myTextField: UITextField!
override func viewDidLoad() {
super.viewDidLoad()
myTextField.delegate = self
}
func textFieldShouldBeginEditing(textField: UITextField) -> Bool {
if textField == myTextField {
return false; //do not show keyboard nor cursor
}
return true
}
Unfortunately, as far as I know, the requests library is not equipped for performing asynchronous requests. You can wrap async/await
syntax around requests
, but that will make the underlying requests no less synchronous. If you want true async requests, you must use other tooling that provides it. One such solution is aiohttp
(Python 3.5.3+). It works well in my experience using it with the Python 3.7 async/await
syntax. Below I write three implementations of performing n web requests using
sync_requests_get_all
) using the Python requests
libraryasync_requests_get_all
) using the Python requests
library wrapped in Python 3.7 async/await
syntax and asyncio
async_aiohttp_get_all
) with the Python aiohttp
library wrapped in Python 3.7 async/await
syntax and asyncio
import time
import asyncio
import requests
import aiohttp
from types import SimpleNamespace
durations = []
def timed(func):
"""
records approximate durations of function calls
"""
def wrapper(*args, **kwargs):
start = time.time()
print(f'{func.__name__:<30} started')
result = func(*args, **kwargs)
duration = f'{func.__name__:<30} finished in {time.time() - start:.2f} seconds'
print(duration)
durations.append(duration)
return result
return wrapper
async def fetch(url, session):
"""
asynchronous get request
"""
async with session.get(url) as response:
response_json = await response.json()
return SimpleNamespace(**response_json)
async def fetch_many(loop, urls):
"""
many asynchronous get requests, gathered
"""
async with aiohttp.ClientSession() as session:
tasks = [loop.create_task(fetch(url, session)) for url in urls]
return await asyncio.gather(*tasks)
@timed
def sync_requests_get_all(urls):
"""
performs synchronous get requests
"""
# use session to reduce network overhead
session = requests.Session()
return [SimpleNamespace(**session.get(url).json()) for url in urls]
@timed
def async_requests_get_all(urls):
"""
asynchronous wrapper around synchronous requests
"""
loop = asyncio.get_event_loop()
# use session to reduce network overhead
session = requests.Session()
async def async_get(url):
return session.get(url)
async_tasks = [loop.create_task(async_get(url)) for url in urls]
return loop.run_until_complete(asyncio.gather(*async_tasks))
@timed
def asnyc_aiohttp_get_all(urls):
"""
performs asynchronous get requests
"""
loop = asyncio.get_event_loop()
return loop.run_until_complete(fetch_many(loop, urls))
if __name__ == '__main__':
# this endpoint takes ~3 seconds to respond,
# so a purely synchronous implementation should take
# little more than 30 seconds and a purely asynchronous
# implementation should take little more than 3 seconds.
urls = ['https://postman-echo.com/delay/3']*10
sync_requests_get_all(urls)
async_requests_get_all(urls)
asnyc_aiohttp_get_all(urls)
print('----------------------')
[print(duration) for duration in durations]
On my machine, this is the output:
sync_requests_get_all started
sync_requests_get_all finished in 30.92 seconds
async_requests_get_all started
async_requests_get_all finished in 30.87 seconds
asnyc_aiohttp_get_all started
asnyc_aiohttp_get_all finished in 3.22 seconds
----------------------
sync_requests_get_all finished in 30.92 seconds
async_requests_get_all finished in 30.87 seconds
asnyc_aiohttp_get_all finished in 3.22 seconds
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Data;
using System.Reflection;
using Microsoft.Office.Interop.Excel;
namespace trg.satmap.portal.ParseAgentSkillMapping
{
class ConvertXLStoDT
{
private StringBuilder errorMessages;
public StringBuilder ErrorMessages
{
get { return errorMessages; }
set { errorMessages = value; }
}
public ConvertXLStoDT()
{
ErrorMessages = new StringBuilder();
}
public System.Data.DataTable XLStoDTusingInterOp(string FilePath)
{
#region Excel important Note.
/*
* Excel creates XLS and XLSX files. These files are hard to read in C# programs.
* They are handled with the Microsoft.Office.Interop.Excel assembly.
* This assembly sometimes creates performance issues. Step-by-step instructions are helpful.
*
* Add the Microsoft.Office.Interop.Excel assembly by going to Project -> Add Reference.
*/
#endregion
Microsoft.Office.Interop.Excel.Application excelApp = null;
Microsoft.Office.Interop.Excel.Workbook workbook = null;
System.Data.DataTable dt = new System.Data.DataTable(); //Creating datatable to read the content of the Sheet in File.
try
{
excelApp = new Microsoft.Office.Interop.Excel.Application(); // Initialize a new Excel reader. Must be integrated with an Excel interface object.
//Opening Excel file(myData.xlsx)
workbook = excelApp.Workbooks.Open(FilePath, Missing.Value, Missing.Value, Missing.Value, Missing.Value, Missing.Value, Missing.Value, Missing.Value, Missing.Value, Missing.Value, Missing.Value, Missing.Value, Missing.Value, Missing.Value, Missing.Value);
Microsoft.Office.Interop.Excel.Worksheet ws = (Microsoft.Office.Interop.Excel.Worksheet)workbook.Sheets.get_Item(1);
Microsoft.Office.Interop.Excel.Range excelRange = ws.UsedRange; //gives the used cells in sheet
ws = null; // now No need of this so should expire.
//Reading Excel file.
object[,] valueArray = (object[,])excelRange.get_Value(Microsoft.Office.Interop.Excel.XlRangeValueDataType.xlRangeValueDefault);
excelRange = null; // you don't need to do any more Interop. Now No need of this so should expire.
dt = ProcessObjects(valueArray);
}
catch (Exception ex)
{
ErrorMessages.Append(ex.Message);
}
finally
{
#region Clean Up
if (workbook != null)
{
#region Clean Up Close the workbook and release all the memory.
workbook.Close(false, FilePath, Missing.Value);
System.Runtime.InteropServices.Marshal.ReleaseComObject(workbook);
#endregion
}
workbook = null;
if (excelApp != null)
{
excelApp.Quit();
}
excelApp = null;
#endregion
}
return (dt);
}
/// <summary>
/// Scan the selected Excel workbook and store the information in the cells
/// for this workbook in an object[,] array. Then, call another method
/// to process the data.
/// </summary>
private void ExcelScanIntenal(Microsoft.Office.Interop.Excel.Workbook workBookIn)
{
//
// Get sheet Count and store the number of sheets.
//
int numSheets = workBookIn.Sheets.Count;
//
// Iterate through the sheets. They are indexed starting at 1.
//
for (int sheetNum = 1; sheetNum < numSheets + 1; sheetNum++)
{
Worksheet sheet = (Worksheet)workBookIn.Sheets[sheetNum];
//
// Take the used range of the sheet. Finally, get an object array of all
// of the cells in the sheet (their values). You can do things with those
// values. See notes about compatibility.
//
Range excelRange = sheet.UsedRange;
object[,] valueArray = (object[,])excelRange.get_Value(XlRangeValueDataType.xlRangeValueDefault);
//
// Do something with the data in the array with a custom method.
//
ProcessObjects(valueArray);
}
}
private System.Data.DataTable ProcessObjects(object[,] valueArray)
{
System.Data.DataTable dt = new System.Data.DataTable();
#region Get the COLUMN names
for (int k = 1; k <= valueArray.GetLength(1); k++)
{
dt.Columns.Add((string)valueArray[1, k]); //add columns to the data table.
}
#endregion
#region Load Excel SHEET DATA into data table
object[] singleDValue = new object[valueArray.GetLength(1)];
//value array first row contains column names. so loop starts from 2 instead of 1
for (int i = 2; i <= valueArray.GetLength(0); i++)
{
for (int j = 0; j < valueArray.GetLength(1); j++)
{
if (valueArray[i, j + 1] != null)
{
singleDValue[j] = valueArray[i, j + 1].ToString();
}
else
{
singleDValue[j] = valueArray[i, j + 1];
}
}
dt.LoadDataRow(singleDValue, System.Data.LoadOption.PreserveChanges);
}
#endregion
return (dt);
}
}
}
The quantile()
function will do much of what you probably want, but since the question was ambiguous, I will provide an alternate answer that does something slightly different from quantile()
.
ecdf(infert$age)(infert$age)
will generate a vector of the same length as infert$age
giving the proportion of infert$age
that is below each observation. You can read the ecdf
documentation, but the basic idea is that ecdf()
will give you a function that returns the empirical cumulative distribution. Thus ecdf(X)(Y)
is the value of the cumulative distribution of X at the points in Y. If you wanted to know just the probability of being below 30 (thus what percentile 30 is in the sample), you could say
ecdf(infert$age)(30)
The main difference between this approach and using the quantile()
function is that quantile()
requires that you put in the probabilities to get out the levels, and this requires that you put in the levels to get out the probabilities.
Your project is mostly likely targetting .NET Framework 4 Client Profile. Check the application tab in your project properties.
This question has a good answer on the different versions: Target framework, what does ".NET Framework ... Client Profile" mean?
if(name.getText().hashCode() != 0){
JOptionPane.showMessageDialog(null, "not empty");
}
else{
JOptionPane.showMessageDialog(null, "empty");
}
If you don't want to install Typescript globally (which makes sense to me, so you don't need to update it constantly), you can use npx:
npx -p typescript tsc --init
The key point is using the -p
flag to inform npx that the tsc binary belongs to the typescript package
I found the product key for Visual Studio 2008 Professional under a slightly different key:
HKLM\SOFTWARE\Wow6432Node\Microsoft\MSDN\8.0\Registration\PIDKEY
it was listed without the dashes as stated above.
There are some great answers here. But recent changes to how Swift implements weak references should change everyone's weak self vs. unowned self usage decisions. Previously, if you needed the best performance using unowned self was superior to weak self, as long as you could be certain that self would never be nil, because accessing unowned self is much faster than accessing weak self.
But Mike Ash has documented how Swift has updated the implementation of weak vars to use side-tables and how this substantially improves weak self performance.
https://mikeash.com/pyblog/friday-qa-2017-09-22-swift-4-weak-references.html
Now that there isn't a significant performance penalty to weak self, I believe we should default to using it going forward. The benefit of weak self is that it's an optional, which makes it far easier to write more correct code, it's basically the reason Swift is such a great language. You may think you know which situations are safe for the use of unowned self, but my experience reviewing lots of other developers code is, most don't. I've fixed lots of crashes where unowned self was deallocated, usually in situations where a background thread completes after a controller is deallocated.
Bugs and crashes are the most time-consuming, painful and expensive parts of programming. Do your best to write correct code and avoid them. I recommend making it a rule to never force unwrap optionals and never use unowned self instead of weak self. You won't lose anything missing the times force unwrapping and unowned self actually are safe. But you'll gain a lot from eliminating hard to find and debug crashes and bugs.
I tried using a CLR function and it was more than twice as fast as BCP. Here's my code.
Original Method:
SET @bcpCommand = 'bcp "SELECT blobcolumn FROM blobtable WHERE ID = ' + CAST(@FileID AS VARCHAR(20)) + '" queryout "' + @FileName + '" -T -c'
EXEC master..xp_cmdshell @bcpCommand
CLR Method:
declare @file varbinary(max) = (select blobcolumn from blobtable WHERE ID = @fileid)
declare @filepath nvarchar(4000) = N'c:\temp\' + @FileName
SELECT Master.dbo.WriteToFile(@file, @filepath, 0)
C# Code for the CLR function
using System;
using System.Data;
using System.Data.SqlTypes;
using System.IO;
using Microsoft.SqlServer.Server;
namespace BlobExport
{
public class Functions
{
[SqlFunction]
public static SqlString WriteToFile(SqlBytes binary, SqlString path, SqlBoolean append)
{
try
{
if (!binary.IsNull && !path.IsNull && !append.IsNull)
{
var dir = Path.GetDirectoryName(path.Value);
if (!Directory.Exists(dir))
Directory.CreateDirectory(dir);
using (var fs = new FileStream(path.Value, append ? FileMode.Append : FileMode.OpenOrCreate))
{
byte[] byteArr = binary.Value;
for (int i = 0; i < byteArr.Length; i++)
{
fs.WriteByte(byteArr[i]);
};
}
return "SUCCESS";
}
else
"NULL INPUT";
}
catch (Exception ex)
{
return ex.Message;
}
}
}
}
if ( ! $("input").is(':checked') )
Doesn't work?
You might also try iterating over the elements like so:
var iz_checked = true;
$('input').each(function(){
iz_checked = iz_checked && $(this).is(':checked');
});
if ( ! iz_checked )
There's no reliable way to detect first run, as the shared preferences way is not always safe, the user can delete the shared preferences data from the settings! a better way is to use the answers here Is there a unique Android device ID? to get the device's unique ID and store it somewhere in your server, so whenever the user launches the app you request the server and check if it's there in your database or it is new.
@last_run_time
is a 9.4. User-Defined Variables and last_run_time datetime
one 13.6.4.1. Local Variable DECLARE Syntax, are different variables.
Try: SELECT last_run_time;
UPDATE
Example:
/* CODE FOR DEMONSTRATION PURPOSES */
DELIMITER $$
CREATE PROCEDURE `sp_test`()
BEGIN
DECLARE current_procedure_name CHAR(60) DEFAULT 'accounts_general';
DECLARE last_run_time DATETIME DEFAULT NULL;
DECLARE current_run_time DATETIME DEFAULT NOW();
-- Define the last run time
SET last_run_time := (SELECT MAX(runtime) FROM dynamo.runtimes WHERE procedure_name = current_procedure_name);
-- if there is no last run time found then use yesterday as starting point
IF(last_run_time IS NULL) THEN
SET last_run_time := DATE_SUB(NOW(), INTERVAL 1 DAY);
END IF;
SELECT last_run_time;
-- Insert variables in table2
INSERT INTO table2 (col0, col1, col2) VALUES (current_procedure_name, last_run_time, current_run_time);
END$$
DELIMITER ;
public static void resizeImage_n_save(Stream sourcePath, string targetPath, int requiredSize)
{
using (var image = System.Drawing.Image.FromStream(sourcePath))
{
double ratio = 0;
var newWidth = 0;
var newHeight = 0;
double w = Convert.ToInt32(image.Width);
double h = Convert.ToInt32(image.Height);
if (w > h)
{
ratio = h / w * 100;
newWidth = requiredSize;
newHeight = Convert.ToInt32(requiredSize * ratio / 100);
}
else
{
ratio = w / h * 100;
newHeight = requiredSize;
newWidth = Convert.ToInt32(requiredSize * ratio / 100);
}
// var newWidth = (int)(image.Width * scaleFactor);
// var newHeight = (int)(image.Height * scaleFactor);
var thumbnailImg = new Bitmap(newWidth, newHeight);
var thumbGraph = Graphics.FromImage(thumbnailImg);
thumbGraph.CompositingQuality = CompositingQuality.HighQuality;
thumbGraph.SmoothingMode = SmoothingMode.HighQuality;
thumbGraph.InterpolationMode = InterpolationMode.HighQualityBicubic;
var imageRectangle = new Rectangle(0, 0, newWidth, newHeight);
thumbGraph.DrawImage(image, imageRectangle);
thumbnailImg.Save(targetPath, image.RawFormat);
//var img = FixedSize(image, requiredSize, requiredSize);
//img.Save(targetPath, image.RawFormat);
}
}
protected override bool ProcessCmdKey(ref Message msg, Keys dataKey)
{
if (dataKey == Keys.Escape)
{
this.Close();
//this.Visible = false;
//Plus clear values from form, if Visible false.
}
return base.ProcessCmdKey(ref msg, dataKey);
}
ASCII encoding is 7-bit, but in practice, characters encoded in ASCII are not stored in groups of 7 bits. Instead, one ASCII is stored in a byte, with the MSB usually set to 0 (yes, it's wasted in ASCII).
You can verify this by inputting a string in the ASCII character set in a text editor, setting the encoding to ASCII, and viewing the binary/hex:
Aside: the use of (strictly) ASCII encoding is now uncommon, in favor of UTF-8 (which does not waste the MSB mentioned above - in fact, an MSB of 1 indicates the code point is encoded with more than 1 byte).
if the opening in windows
try {
//chm file address
String chmFile = System.getProperty("user.dir") + "/chm/sample.chm";
Desktop.getDesktop().open(new File(chmFile));
} catch (IOException ex) {
Logger.getLogger(Frame.class.getName()).log(Level.SEVERE, null, ex);
{
JOptionPane.showMessageDialog(null, "Terjadi Kesalahan", "Error", JOptionPane.WARNING_MESSAGE);
}
}
Thought I would provide my Julia implementation of the algorithm for others. The gist can be found here
using Statistics
using Plots
function SmoothedZscoreAlgo(y, lag, threshold, influence)
# Julia implimentation of http://stackoverflow.com/a/22640362/6029703
n = length(y)
signals = zeros(n) # init signal results
filteredY = copy(y) # init filtered series
avgFilter = zeros(n) # init average filter
stdFilter = zeros(n) # init std filter
avgFilter[lag - 1] = mean(y[1:lag]) # init first value
stdFilter[lag - 1] = std(y[1:lag]) # init first value
for i in range(lag, stop=n-1)
if abs(y[i] - avgFilter[i-1]) > threshold*stdFilter[i-1]
if y[i] > avgFilter[i-1]
signals[i] += 1 # postive signal
else
signals[i] += -1 # negative signal
end
# Make influence lower
filteredY[i] = influence*y[i] + (1-influence)*filteredY[i-1]
else
signals[i] = 0
filteredY[i] = y[i]
end
avgFilter[i] = mean(filteredY[i-lag+1:i])
stdFilter[i] = std(filteredY[i-lag+1:i])
end
return (signals = signals, avgFilter = avgFilter, stdFilter = stdFilter)
end
# Data
y = [1,1,1.1,1,0.9,1,1,1.1,1,0.9,1,1.1,1,1,0.9,1,1,1.1,1,1,1,1,1.1,0.9,1,1.1,1,1,0.9,
1,1.1,1,1,1.1,1,0.8,0.9,1,1.2,0.9,1,1,1.1,1.2,1,1.5,1,3,2,5,3,2,1,1,1,0.9,1,1,3,
2.6,4,3,3.2,2,1,1,0.8,4,4,2,2.5,1,1,1]
# Settings: lag = 30, threshold = 5, influence = 0
lag = 30
threshold = 5
influence = 0
results = SmoothedZscoreAlgo(y, lag, threshold, influence)
upper_bound = results[:avgFilter] + threshold * results[:stdFilter]
lower_bound = results[:avgFilter] - threshold * results[:stdFilter]
x = 1:length(y)
yplot = plot(x,y,color="blue", label="Y",legend=:topleft)
yplot = plot!(x,upper_bound, color="green", label="Upper Bound",legend=:topleft)
yplot = plot!(x,results[:avgFilter], color="cyan", label="Average Filter",legend=:topleft)
yplot = plot!(x,lower_bound, color="green", label="Lower Bound",legend=:topleft)
signalplot = plot(x,results[:signals],color="red",label="Signals",legend=:topleft)
plot(yplot,signalplot,layout=(2,1),legend=:topleft)
I know this is late, but it does answer your original question.
/*Read the comments the same way that SQL runs the query
1) FROM
2) GROUP
3) SELECT
4) My final notes at the bottom
*/
SELECT
list.invoiceid
, cust.customernumber
, MAX(list.inv_amount) AS invoice_amount/* we select the max because it will be the same for each payment to that invoice (presumably invoice amounts do not vary based on payment) */
, MAX(list.inv_amount) - SUM(list.pay_amount) AS [amount_due]
FROM
Customers AS cust
INNER JOIN
Payments AS pay
ON
pay.customerid = cust.customerid
INNER JOIN ( /* generate a list of payment_ids, their amounts, and the totals of the invoices they billed to*/
SELECT
inpay.paymentid AS paymentid
, inv.invoiceid AS invoiceid
, inv.amount AS inv_amount
, pay.amount AS pay_amount
FROM
InvoicePayments AS inpay
INNER JOIN
Invoices AS inv
ON inv.invoiceid = inpay.invoiceid
INNER JOIN
Payments AS pay
ON pay.paymentid = inpay.paymentid
) AS list
ON
list.paymentid = pay.paymentid
/* so at this point my result set would look like:
-- All my customers (crossed by) every paymentid they are associated to (I'll call this A)
-- Every invoice payment and its association to: its own ammount, the total invoice ammount, its own paymentid (what I call list)
-- Filter out all records in A that do not have a paymentid matching in (list)
-- we filter the result because there may be payments that did not go towards invoices!
*/
GROUP BY
/* we want a record line for each customer and invoice ( or basically each invoice but i believe this makes more sense logically */
cust.customernumber
, list.invoiceid
/*
-- we can improve this query by only hitting the Payments table once by moving it inside of our list subquery,
-- but this is what made sense to me when I was planning.
-- Hopefully it makes it clearer how the thought process works to leave it in there
-- as several people have already pointed out, the data structure of the DB prevents us from looking at customers with invoices that have no payments towards them.
*/
Shows the file names and amount/nubmer of lines that changed in each file between now and the specified commit:
git diff --stat <commit-hash>
Solution built on the basis of other answers, while maintaining the timezone and leading zeros:
var d = new Date;
var date = [
d.getFullYear(),
('00' + d.getMonth() + 1).slice(-2),
('00' + d.getDate() + 1).slice(-2)
].join('-');
var time = [
('00' + d.getHours()).slice(-2),
('00' + d.getMinutes()).slice(-2),
('00' + d.getSeconds()).slice(-2)
].join(':');
var dateTime = date + ' ' + time;
console.log(dateTime) // 2021-01-41 13:06:01
As mentioned in previous answers, you should add a custom view inside the scroll view:
Add all your subviews to the content view. At some point you will see a scroll content view has ambiguous content size warning, you should select the content view and click the "Resolve auto layout issues" button (at the bottom right corner of the IB layout), and select the "Add missing constraints" option.
From now on when you run the project, the scroll view will automatically update it's content size, no additional code needed.
A practical observation... In my NodeJS script I have the following function:
function writeToLogFile (message) {
fs.appendFile('myserverlog.txt', Date() + " " + message + "\r\n", function (err) {
if (err) throw err;
});
}
First I had only "\n" but I noticed that when I open the log file in Notepad, it shows all entries on the same line. Notepad++ on the other hand shows the entries each on their own line. After changing the code to "\r\n", even Notepad shows every entry on its own line.
In addition to @enyo's answer in checking for files that are still uploading or in the queue, I also created a new function in dropzone.js to check for any files in an ERROR state (ie bad file type, size, etc).
Dropzone.prototype.getErroredFiles = function () {
var file, _i, _len, _ref, _results;
_ref = this.files;
_results = [];
for (_i = 0, _len = _ref.length; _i < _len; _i++) {
file = _ref[_i];
if (file.status === Dropzone.ERROR) {
_results.push(file);
}
}
return _results;
};
And thus, the check would become:
if (this.getUploadingFiles().length === 0 && this.getQueuedFiles().length === 0 && this.getErroredFiles().length === 0) {
doSomething();
}
or if you have still problems you can use this
$mail->Body = html_entity_decode($Body);
if val % 1 == 0:
val = int(val)
else:
val = float(val)
This worked for me.
How it works: if the remainder of the quotient of val and 1 is 0, val has to be an integer and can, therefore, be declared to be int without having to worry about losing decimal numbers.
Compare these two situations:
A:
val = 12.00
if val % 1 == 0:
val = int(val)
else:
val = float(val)
print(val)
In this scenario, the output is 12, because 12.00 divided by 1 has the remainder of 0. With this information we know, that val doesn't have any decimals and we can declare val to be int.
B:
val = 13.58
if val % 1 == 0:
val = int(val)
else:
val = float(val)
print(val)
This time the output is 13.58, because when val is divided by 1 there is a remainder (0.58) and therefore val is declared to be a float.
By just declaring the number to be an int (without testing the remainder) decimal numbers will be cut off.
This way there are no zeros in the end and no other than the zeros will be ignored.
Below snippet execute some code snippet. If you got any error while executing the code snippet, sleep for M milliseconds and retry. Reference link.
public void retryAndExecuteErrorProneCode(int noOfTimesToRetry, CodeSnippet codeSnippet, int sleepTimeInMillis)
throws InterruptedException {
int currentExecutionCount = 0;
boolean codeExecuted = false;
while (currentExecutionCount < noOfTimesToRetry) {
try {
codeSnippet.errorProneCode();
System.out.println("Code executed successfully!!!!");
codeExecuted = true;
break;
} catch (Exception e) {
// Retry after 100 milliseconds
TimeUnit.MILLISECONDS.sleep(sleepTimeInMillis);
System.out.println(e.getMessage());
} finally {
currentExecutionCount++;
}
}
if (!codeExecuted)
throw new RuntimeException("Can't execute the code within given retries : " + noOfTimesToRetry);
}
I know it may be repeated answer but for any one want to load list of checkboxes with selectall checkbox into angular form i follow this example: Select all/deselect all checkbox using angular 2+
it work fine but just need to add
[ngModelOptions]="{standalone: true}"
the final HTML should be like this:
<ul>
<li><input type="checkbox" [(ngModel)]="selectedAll" (change)="selectAll();"/></li>
<li *ngFor="let n of names">
<input type="checkbox" [(ngModel)]="n.selected" (change)="checkIfAllSelected();">{{n.name}}
</li>
</ul>
TypeScript
selectAll() {
for (var i = 0; i < this.names.length; i++) {
this.names[i].selected = this.selectedAll;
}
}
checkIfAllSelected() {
this.selectedAll = this.names.every(function(item:any) {
return item.selected == true;
})
}
hope this help thnx
You could also use
ImageIcon background = new ImageIcon("Background/background.png");
JLabel label = new JLabel();
label.setBounds(0, 0, x, y);
label.setIcon(background);
JPanel panel = new JPanel();
panel.setLayout(null);
panel.add(label);
if your working with a absolut value as layout.
I got it after lots of trouble In react app there will be a react-app-env.d.ts file in src folder just declare module there
/// <reference types="react-scripts" />
declare module 'react-color/lib/components/alpha/AlphaPointer'
Use the below code. I use this code for file copy and creating a new folder.
string fileToCopy = "filelocation\\file_name.txt";
String server = Environment.UserName;
string newLocation = "C:\\Users\\" + server + "\\Pictures\\Tenders\\file_name.txt";
string folderLocation = "C:\\Users\\" + server + "\\Pictures\\Tenders\\";
bool exists = System.IO.Directory.Exists(folderLocation);
if (!exists)
{
System.IO.Directory.CreateDirectory(folderLocation);
if (System.IO.File.Exists(fileToCopy))
{
MessageBox.Show("file copied");
System.IO.File.Copy(fileToCopy, newLocation, true);
}
else
{
MessageBox.Show("no such files");
}
}
this worked for me:
Private Function arrIsEmpty(arr as variant)
On Error Resume Next
arrIsEmpty = False
arrIsEmpty = IsNumeric(UBound(arr))
End Function
I've had this issue especially when entities are mashalled by Jaxb + Jax-rs. I've used the pre-fetch strategy, but I have also found it effective to provide two entities:
EAGER
Common fields and be mapped in @MappedSuperclass
and extended by both entity implementations.
Certainly if you always need the collections loaded, then there is no reason to not to EAGER
load them. In my case I wanted a stripped down version of the entity to display in a grid.