window.location.href.split('/');
Will give you an array containing all the URL parts, which you can access like a normal array.
Or an ever more elegant solution suggested by @Dylan, with only the path parts:
window.location.pathname.split('/');
Make sure you import MaterialModule as well since you are using md-input which does not belong to FormsModule
I have a field named IsActive in table rows that's True when an item has been deleted. This code applies a CSS class named strikethrough only to deleted items. You can see how it uses the C# Ternary Operator:
<tr class="@(@businesstypes.IsActive ? "" : "strikethrough")">
You cannot "erase" from a file in-place unless you need to erase the end. Either be content with an overwrite of an "empty" value, or read the parts of the file you care about and write it to another file.
In current version of Jekyll, it defaults to http://127.0.0.1:4000/.
This is good, if you are connected to a network but do not want anyone else to access your application.
However it may happen that you want to see how your application runs on a mobile or from some other laptop/computer.
In that case, you can use
jekyll serve --host 0.0.0.0
This binds your application to the host & next use following to connect to it from some other host
http://host's IP adress/4000
One big gotcha is that PHP is disabled in user home directories by default, so if you are testing from ~/public_html it doesn't work. Check /etc/apache2/mods-enabled/php5.conf
# Running PHP scripts in user directories is disabled by default
#
# To re-enable PHP in user directories comment the following lines
# (from <IfModule ...> to </IfModule>.) Do NOT set it to On as it
# prevents .htaccess files from disabling it.
#<IfModule mod_userdir.c>
# <Directory /home/*/public_html>
# php_admin_flag engine Off
# </Directory>
#</IfModule>
Other than that installing in Ubuntu is real easy, as all the stuff you used to have to put in httpd.conf is done automatically.
I faced similar problem on windows server 2012 STD 64 bit , my problem is resolved after updating windows with all available windows updates.
In general I use system
, open
, IPC::Open2
, or IPC::Open3
depending on what I want to do. The qx//
operator, while simple, is too constraining in its functionality to be very useful outside of quick hacks. I find open
to much handier.
system
: run a command and wait for it to returnUse system
when you want to run a command, don't care about its output, and don't want the Perl script to do anything until the command finishes.
#doesn't spawn a shell, arguments are passed as they are
system("command", "arg1", "arg2", "arg3");
or
#spawns a shell, arguments are interpreted by the shell, use only if you
#want the shell to do globbing (e.g. *.txt) for you or you want to redirect
#output
system("command arg1 arg2 arg3");
qx//
or ``: run a command and capture its STDOUTUse qx//
when you want to run a command, capture what it writes to STDOUT, and don't want the Perl script to do anything until the command finishes.
#arguments are always processed by the shell
#in list context it returns the output as a list of lines
my @lines = qx/command arg1 arg2 arg3/;
#in scalar context it returns the output as one string
my $output = qx/command arg1 arg2 arg3/;
exec
: replace the current process with another process.Use exec
along with fork
when you want to run a command, don't care about its output, and don't want to wait for it to return. system
is really just
sub my_system {
die "could not fork\n" unless defined(my $pid = fork);
return waitpid $pid, 0 if $pid; #parent waits for child
exec @_; #replace child with new process
}
You may also want to read the waitpid
and perlipc
manuals.
open
: run a process and create a pipe to its STDIN or STDERRUse open
when you want to write data to a process's STDIN or read data from a process's STDOUT (but not both at the same time).
#read from a gzip file as if it were a normal file
open my $read_fh, "-|", "gzip", "-d", $filename
or die "could not open $filename: $!";
#write to a gzip compressed file as if were a normal file
open my $write_fh, "|-", "gzip", $filename
or die "could not open $filename: $!";
Use IPC::Open2
when you need to read from and write to a process's STDIN and STDOUT.
use IPC::Open2;
open2 my $out, my $in, "/usr/bin/bc"
or die "could not run bc";
print $in "5+6\n";
my $answer = <$out>;
use IPC::Open3
when you need to capture all three standard file handles of the process. I would write an example, but it works mostly the same way IPC::Open2 does, but with a slightly different order to the arguments and a third file handle.
Also you can use f-string formatting to write integer to file
For appending use following code, for writing once replace 'a' with 'w'.
for i in s_list:
with open('path_to_file','a') as file:
file.write(f'{i}\n')
file.close()
1) Make abstract Controller class.
public abstract class MyController:Controller
{
public ActionResult NotFound()
{
Response.StatusCode = 404;
return View("NotFound");
}
protected override void HandleUnknownAction(string actionName)
{
this.ActionInvoker.InvokeAction(this.ControllerContext, "NotFound");
}
protected override void OnAuthorization(AuthorizationContext filterContext) { }
}
2) Make inheritence from this abstract class in your all controllers
public class HomeController : MyController
{}
3) And add a view named "NotFound" in you View-Shared folder.
You forget to write .show() at the end, which is used to show the toast message.
Toast.makeText(getApplicationContext(), "received", Toast.LENGTH_SHORT).show();
It is a common mistake that programmer does, but i am sure after this you won't repeat the mistake again... :D
I have used only SINGLE FILE with TWO classes in it following :
use Illuminate\Database\Seeder;
use Illuminate\Database\Eloquent\Model;
use App\Lesson;
use Faker\Factory as Faker;
class DatabaseSeeder extends Seeder {
/**
* Run the database seeds.
*
* @return void
*/
public function run()
{
//Lesson::truncate();
Model::unguard();
$this->call("LessonsTableSeeder");
}
}
class LessonsTableSeeder extends Seeder {
/**
* Run the database seeds.
*
* @return void
*/
public function run()
{
$faker = Faker::create();
foreach(range(1,30) as $index) {
Lesson::create(['title' => $faker->sentence(5), 'body' => $faker->paragraph(4)]);
}
}
}
Had the exact same issue. I installed curl 7.19 to /opt/curl/ to make sure that I would not affect current curl on our production servers. Once I linked libcurl.so.4 to /usr/lib:
sudo ln -s /opt/curl/lib/libcurl.so /usr/lib/libcurl.so.4
I still got the same error! Durf.
But running ldconfig make the linkage for me and that worked. No need to set the LD_RUN_PATH or LD_LIBRARY_PATH at all. Just needed to run ldconfig.
In python many things are iterable including files and strings. Iterating over a filehandler gives you a list of all the lines in that file. Iterating over a string gives you a list of all the characters in that string.
charsFromFile = []
filePath = r'path\to\your\file.txt' #the r before the string lets us use backslashes
for line in open(filePath):
for char in line:
charsFromFile.append(char)
#apply code on each character here
or if you want a one liner
#the [0] at the end is the line you want to grab.
#the [0] can be removed to grab all lines
[list(a) for a in list(open('test.py'))][0]
.
.
Edit: as agf mentions you can use itertools.chain.from_iterable
His method is better, unless you want the ability to specify which lines to grab
list(itertools.chain.from_iterable(open(filename, 'rU)))
This does however require one to be familiar with itertools, and as a result looses some readablity
If you only want to iterate over the chars, and don't care about storing a list, then I would use the nested for loops. This method is also the most readable.
An excellent 2014 IBM research paper “An Updated Performance Comparison of Virtual Machines and Linux Containers” by Felter et al. provides a comparison between bare metal, KVM, and Docker containers. The general result is: Docker is nearly identical to native performance and faster than KVM in every category.
The exception to this is Docker’s NAT — if you use port mapping (e.g., docker run -p 8080:8080
), then you can expect a minor hit in latency, as shown below. However, you can now use the host network stack (e.g., docker run --net=host
) when launching a Docker container, which will perform identically to the Native column (as shown in the Redis latency results lower down).
They also ran latency tests on a few specific services, such as Redis. You can see that above 20 client threads, highest latency overhead goes Docker NAT, then KVM, then a rough tie between Docker host/native.
Just because it’s a really useful paper, here are some other figures. Please download it for full access.
Taking a look at Disk I/O:
Now looking at CPU overhead:
Now some examples of memory (read the paper for details, memory can be extra tricky):
Running the @neverever415 answer I got:
Failure [DELETE_FAILED_INTERNAL_ERROR]
In this case check that you wrote a right package name, maybe it is a debug version like com.package_name.debug
:
adb shell pm uninstall com.package_name.debug
CSS is not a programming language, so the question of turing-completeness is a meaningless one. If programming extensions are added to CSS such as was the case in IE6 then that new synthesis is a whole different thing.
CSS is merely a description of styles; it does not have any logic, and its structure is flat.
Another type of solution would be to autogenerate the nginx conf files via Jinja2 templates from ansible. The advantage of this is easy deployment to a cloud environment, and easy to replicate on multiple dev machines
You can check out the yahoo_fin package. It was initially created after Yahoo Finance changed their API (documentation is here: http://theautomatic.net/yahoo_fin-documentation).
from yahoo_fin import stock_info as si
aapl_data = si.get_data("aapl")
nflx_data = si.get_data("nflx")
aapl_data.head()
nflx_data.head()
aapl.to_csv("aapl_data.csv")
nflx_data.to_csv("nflx_data.csv")
You can convert the URL
to a String
and use it to create a new File
. e.g.
URL url = new URL("http://google.com/pathtoaimage.jpg");
File f = new File(url.getFile());
You're getting the toString()
value returned by the Scanner object itself which is not what you want and not how you use a Scanner object. What you want instead is the data obtained by the Scanner object. For example,
Scanner input = new Scanner(System.in);
String data = input.nextLine();
System.out.println(data);
Please read the tutorial on how to use it as it will explain all.
Edit
Please look here: Scanner tutorial
Also have a look at the Scanner API which will explain some of the finer points of Scanner's methods and properties.
OutputStream writes bytes, String provides chars. You need to define Charset to encode string to byte[]:
outputStream.write(string.getBytes(Charset.forName("UTF-8")));
Change UTF-8
to a charset of your choice.
There are two open source implementations.
Apache Solr has ConcurrentLRUCache: https://lucene.apache.org/solr/3_6_1/org/apache/solr/util/ConcurrentLRUCache.html
There's an open source project for a ConcurrentLinkedHashMap: http://code.google.com/p/concurrentlinkedhashmap/
As of Spring Boot 1.3.0.M3
, the H2 console can be auto-configured.
The prerequisites are:
Even if you don't use Spring Boot Dev Tools, you can still auto-configure the console by setting spring.h2.console.enabled
to true
Check out this part of the documentation for all the details.
Note that when configuring in this way the console is accessible at: http://localhost:8080/h2-console/
$mylabel.text( $mylabel.text().replace('-', '') );
Since text()
gets the value, and text( "someValue" )
sets the value, you just place one inside the other.
Would be the equivalent of doing:
var newValue = $mylabel.text().replace('-', '');
$mylabel.text( newValue );
EDIT:
I hope I understood the question correctly. I'm assuming $mylabel
is referencing a DOM element in a jQuery object, and the string is in the content of the element.
If the string is in some other variable not part of the DOM, then you would likely want to call the .replace()
function against that variable before you insert it into the DOM.
Like this:
var someVariable = "-123456";
$mylabel.text( someVariable.replace('-', '') );
or a more verbose version:
var someVariable = "-123456";
someVariable = someVariable.replace('-', '');
$mylabel.text( someVariable );
You didn't specify how the order is determined, but this will give you a rank value in MySQL:
SELECT t.*,
@rownum := @rownum +1 AS rank
FROM TBL_FOO t
JOIN (SELECT @rownum := 0) r
WHERE t.name = 'sarmen'
Then you can pick out what rows you want, based on the rank value.
You would need to have an instance of ClassA within ClassB or have ClassB inherit ClassA
class ClassA {
public function getName() {
echo $this->name;
}
}
class ClassB extends ClassA {
public function getName() {
parent::getName();
}
}
Without inheritance or an instance method, you'd need ClassA to have a static method
class ClassA {
public static function getName() {
echo "Rawkode";
}
}
--- other file ---
echo ClassA::getName();
If you're just looking to call the method from an instance of the class:
class ClassA {
public function getName() {
echo "Rawkode";
}
}
--- other file ---
$a = new ClassA();
echo $a->getName();
Regardless of the solution you choose, require 'ClassA.php
is needed.
Instead of .each, another (perhaps more concise) approach to getting all those prices might be:
var prices = $(products).children("li").map(function() {
return $(this).prop("data-price");
}).get();
additionally you may want to consider filtering the array to get rid of empty or non-numeric array values in case they should exist:
prices = prices.filter(function(n){ return(!isNaN(parseFloat(n))) });
then use Sergey's solution above:
var max = Math.max.apply(Math,prices);
var min = Math.min.apply(Math,prices);
This is what I've been using. Haven't seen any issues.
destroy: function(){
this.remove();
this.unbind();
}
"singleton" in spring is using bean factory get instance, then cache it; which singleton design pattern is strictly, the instance can only be retrieved from static get method, and the object can never be publicly instantiated.
Just one more solution:
$('a').on('click', function(e){
var $link = $(e.target);
e.preventDefault();
if(!$link.data('lockedAt') || +new Date() - $link.data('lockedAt') > 300) {
doSomething();
}
$link.data('lockedAt', +new Date());
});
Here we save the time of last click as data attribute and then check if previous click was more than 0.3 seconds ago. If it is false (less than 0.3 sec ago), just update last click time, if true, do something.
Save:
public boolean saveFile(Context context, String mytext){
Log.i("TESTE", "SAVE");
try {
FileOutputStream fos = context.openFileOutput("file_name"+".txt",Context.MODE_PRIVATE);
Writer out = new OutputStreamWriter(fos);
out.write(mytext);
out.close();
return true;
} catch (IOException e) {
e.printStackTrace();
return false;
}
}
Load:
public String load(Context context){
Log.i("TESTE", "FILE");
try {
FileInputStream fis = context.openFileInput("file_name"+".txt");
BufferedReader r = new BufferedReader(new InputStreamReader(fis));
String line= r.readLine();
r.close();
return line;
} catch (IOException e) {
e.printStackTrace();
Log.i("TESTE", "FILE - false");
return null;
}
}
Following the Jenkins wiki, you'll have to:
chown -R jenkins:jenkins $JENKINS_HOME
JENKINS_HOME is by default located in ~/.jenkins
on a Linux installation, yet to exactly find where it is located, go on the http://your_jenkins_url/configure page and check the value of the first parameter: Home directory
; this is the JENKINS_HOME.
There is a solution even if you don't want to remove your local changes.
Just fix the unmerged files (by git add
or git remove
). Then do git pull
.
You can do that by adding your view directly to the keyWindow:
UIView *myView = /* <- Your custom view */;
UIWindow *currentWindow = [UIApplication sharedApplication].keyWindow;
[currentWindow addSubview:myView];
UPDATE -- For Swift 4.1 and above
let currentWindow: UIWindow? = UIApplication.shared.keyWindow
currentWindow?.addSubview(myView)
UPDATE for iOS13 and above
keyWindow
is deprecated. You should use the following:
UIApplication.shared.windows.first(where: { $0.isKeyWindow })?.addSubview(myView)
We can find file name below code:
File file =new File(Path);
String filename=file.getName();
I have been using Perforce for a long time and recently I also started to use GIT. Here is my "objective" opinion:
Perforce features:
GIT features:
Overall for OpenSource/Distributed projects I would always recommend GIT, because it is more like a P2P application and everyone can participate in development. For example, I remember that when I was doing remote development with Perforce I was syncing 4GB Projects over 1Mbps link once in a week. Alot of time was simply wasted because of that. Also we needed set up VPN to do that.
If you have a small company and P4 server will be always up then I would say that Perforce is also a very good option.
I would say using tryParse, it'll return 'false' if the uint is to big for an int.
Don't forget that a uint can go much bigger than a int, as long as you going > 0
I think its too late to reply on this thread. But I would like to share my idea or way to resolve text size problem over difference resolution devices. Many android developer sites suggest that we have to use sp unit for text size which will handle text size for difference resolution devices. But I am always unable to get the desired result. So I have found one solution which I am using from my last 4-5 projects and its working fine. As per my suggestion, you have to place the text size for each resolution devices, which is bit tedious work, but it will fulfill your requirement. Each developer has must listen about the ratio like 4:6:8:12 (h:xh:xxh:xxxh respectively). Now inside your project res folder you have to create 4 folder with dimens file e.g.
Now inside dimens.xml file you have to place text sizes. I am showing you code for values-hdpi, similarly you have to place code for other resolution values/dimens.xml file.
<?xml version="1.0" encoding="utf-8"?>
<resources>
<dimen name="text_size">4px</dimen>
</resources>
For other resolutions it is like xhdpi : 6px, xxhdpi : 8px, xxxhdpi : 12px. This is calculated with the ratio (3:4:6:8:12) I have written above. Lets discuss other text size example with above ratio. If you want to take text size of 12px in hdpi, then in other resolution it would be
This is the simple solution to implement required text size for all resolutions. I am not considering values-mdpi resolution devices here. If any one want to include text size for this resolution then ration is like 3:4:6:8:12. In any query please let me know. Hope it will help you people out.
What about using the Arrays class ?
import java.util.Arrays;
import java.util.List;
import java.util.HashSet;
import java.util.Arrays;
public class MyClass {
public static void main(String args[]) {
Set mySet = new HashSet();
mySet.add("one");
mySet.add("two");
List list = Arrays.asList(mySet.toArray());
Object o0 = list.get(0);
Object o1 = list.get(1);
System.out.println("items " + o0+","+o1);
}
}
output:
items one,two
from sklearn import metrics
import bumpy as np
print(no.sqrt(metrics.mean_squared_error(actual,predicted)))
In order to send data from child component create property decorated with output() in child component and in the parent listen to the created event. Emit this event with new values in the payload when ever it needed.
@Output() public eventName:EventEmitter = new EventEmitter();
to emit this event:
this.eventName.emit(payloadDataObject);
It is privacy concern. It is recommended to disallow users to backup an app if it contains sensitive data. Having access to backup files (i.e. when android:allowBackup="true"
), it is possible to modify/read the content of an app even on a non-rooted device.
Solution - use android:allowBackup="false"
in the manifest file.
You can read this post to have more information: Hacking Android Apps Using Backup Techniques
Create an Android app using Eclipse.
Create a layout that has a <WebView>
control.
Move your HTML code to /assets
folder.
Load webview with your file:///android_asset/ file.
And you have an android app!
From your code, it looks like provider
is a variant or some other variable, and not an object.
Is Nothing
is for objects only, yet later you say it's a value that should either be NULL or NOT NULL, which would be handled by IsNull
.
Try using:
If Not IsNull(provider) Then
url = url & "&provider=" & provider
End if
Alternately, if that doesn't work, try:
If provider <> "" Then
url = url & "&provider=" & provider
End if
Also, using the StringBuilder.AppendLine method.
Spring has a utility method for this:
TypedQuery<Profile> query = em.createNamedQuery(namedQuery, Profile.class);
...
return org.springframework.dao.support.DataAccessUtils.singleResult(query.getResultList());
maybe this would help (nothing would replaced with raw thread, yeah!)
I suggest run each Future
guy with a separated thread (they goes parallel), then when ever one of the got error, it just signal the manager(Handler
class).
class Handler{
//...
private Thread thisThread;
private boolean failed=false;
private Thread[] trds;
public void waitFor(){
thisThread=Thread.currentThread();
List<Future<Object>> futures = getFutures();
trds=new Thread[futures.size()];
for (int i = 0; i < trds.length; i++) {
RunTask rt=new RunTask(futures.get(i), this);
trds[i]=new Thread(rt);
}
synchronized (this) {
for(Thread tx:trds){
tx.start();
}
}
for(Thread tx:trds){
try {tx.join();
} catch (InterruptedException e) {
System.out.println("Job failed!");break;
}
}if(!failed){System.out.println("Job Done");}
}
private List<Future<Object>> getFutures() {
return null;
}
public synchronized void cancelOther(){if(failed){return;}
failed=true;
for(Thread tx:trds){
tx.stop();//Deprecated but works here like a boss
}thisThread.interrupt();
}
//...
}
class RunTask implements Runnable{
private Future f;private Handler h;
public RunTask(Future f,Handler h){this.f=f;this.h=h;}
public void run(){
try{
f.get();//beware about state of working, the stop() method throws ThreadDeath Error at any thread state (unless it blocked by some operation)
}catch(Exception e){System.out.println("Error, stopping other guys...");h.cancelOther();}
catch(Throwable t){System.out.println("Oops, some other guy has stopped working...");}
}
}
I have to say the above code would error(didn't check), but I hope I could explain the solution. please have a try.
First off, I will second the nomination of python's logging framework. Be a little careful about how you use it, however. Specifically: let the logging framework expand your variables, don't do it yourself. For instance, instead of:
logging.debug("datastructure: %r" % complex_dict_structure)
make sure you do:
logging.debug("datastructure: %r", complex_dict_structure)
because while they look similar, the first version incurs the repr() cost even if it's disabled. The second version avoid this. Similarly, if you roll your own, I'd suggest something like:
def debug_stdout(sfunc):
print(sfunc())
debug = debug_stdout
called via:
debug(lambda: "datastructure: %r" % complex_dict_structure)
which will, again, avoid the overhead if you disable it by doing:
def debug_noop(*args, **kwargs):
pass
debug = debug_noop
The overhead of computing those strings probably doesn't matter unless they're either 1) expensive to compute or 2) the debug statement is in the middle of, say, an n^3 loop or something. Not that I would know anything about that.
You can try as below :
declare @list varchar(MAX), @i int
select @i=0, @list ='4,7,12,22,19,'
while( @i < LEN(@list))
begin
declare @item varchar(MAX)
SELECT @item = SUBSTRING(@list, @i,CHARINDEX(',',@list,@i)-@i)
select @item
--do your stuff here with @item
exec p_MyInnerProcedure @item
set @i = CHARINDEX(',',@list,@i)+1
if(@i = 0) set @i = LEN(@list)
end
(Assuming Excel 2003...)
When using the Text-to-Columns Wizard has, in Step 3 you can dictate the data type for each of the columns. Click on the column in the preview and change the misbehaving column from "General" to "Text."
I ran across this problem while automating a restore proccess in SQL Server 2008. My (successfull) approach was a mix of two of the answers provided.
First, I run across all the connections of said database, and kill them.
DECLARE @SPID int = (SELECT TOP 1 SPID FROM sys.sysprocess WHERE dbid = db_id('dbName'))
While @spid Is Not Null
Begin
Execute ('Kill ' + @spid)
Select @spid = top 1 spid from master.dbo.sysprocesses
where dbid = db_id('dbName')
End
Then, I set the database to a single_user mode
ALTER DATABASE dbName SET SINGLE_USER
Then, I run the restore...
RESTORE DATABASE and whatnot
Kill the connections again
(same query as above)
And set the database back to multi_user.
ALTER DATABASE dbName SET MULTI_USER
This way, I ensure that there are no connections holding up the database before setting to single mode, since the former will freeze if there are.
when I use the function
select dbo.decode(10>1 ,'yes' ,'no')
then say syntax error near '>'
Unfortunately, that does not get you around having the CASE clause in the SQL, since you would need it to convert the logical expression to a bit parameter to match the type of the first function argument:
create function decode(@var1 as bit, @var2 as nvarchar(100), @var3 as nvarchar(100))
returns nvarchar(100)
begin
return case when @var1 = 1 then @var2 else @var3 end;
end;
select dbo.decode(case when 10 > 1 then 1 else 0 end, 'Yes', 'No');
If you want to merge the filters (eg. CSV and Excel files), use this formula:
OpenFileDialog of = new OpenFileDialog();
of.Filter = "CSV files (*.csv)|*.csv|Excel Files|*.xls;*.xlsx";
Or if you want to see XML or PDF files in one time use this:
of.Filter = @" XML or PDF |*.xml;*.pdf";
Convert the excel file to .csv
file (comma separated value file) and now you can easily be able to read it.
You might want to check out this tutorial: http://www.webdesignerwall.com/tutorials/css-decorative-gallery/
In it the writer uses an empty span element to add an overlaying image. You can use jQuery to inject said span elements, if you'd like to keep your code as clean as possible. An example is also given in the aforementioned article.
Hope this helps!
-Dave
Use CSS Pseudo-classes and give your tag a class, for example:
<a class="noDecoration" href="#">
and add this to your stylesheet:
.noDecoration, a:link, a:visited {
text-decoration: none;
}
Change complete app theme
func application(_ application: UIApplication, didFinishLaunchingWithOptions launchOptions: [UIApplicationLaunchOptionsKey: Any]?) -> Bool {
// Override point for customization after application launch.
UINavigationBar.appearance().tintColor = .white
return true
}
Change specific controller
let navController = UINavigationController.init(rootViewController: yourViewController)
navController.navigationBar.tintColor = .red
present(navController, animated: true, completion: nil)
<a href="#anchor">Click me!</a>
<div style="margin-top: -100px; padding-top: 100px;" id="anchor"></div>
<p>I should be 100px below where I currently am!</p>
Here's what worked for me:
git diff origin/master...
This shows only the changes between my currently selected local branch and the remote master branch, and ignores all changes in my local branch that came from merge commits.
You need to give the absolute pathname to where the file exists.
File file = new File("C:\\Users\\User\\Documents\\Workspace\\FileRead\\hello.txt");
Users who have one of the 3 countries
SELECT DISTINCT user_id
FROM table
WHERE ancestry IN('England','France','Germany')
Users who have all 3 countries
SELECT DISTINCT A.userID
FROM table A
INNER JOIN table B on A.user_id = B.user_id
INNER JOIN table C on A.user_id = C.user_id
WHERE A.ancestry = 'England'
AND B.ancestry = 'Germany'
AND C.ancestry = 'France'
Just for the record, I got borders in the table and to get rid of it I needed to set following properties in the GridView:
GridLines="None"
CellSpacing="-1"
HTML: Use names as
<input name="levels[level][]">
<input name="levels[build_time][]">
PHP:
$array = filter_input_array(INPUT_POST);
$newArray = array();
foreach (array_keys($array) as $fieldKey) {
foreach ($array[$fieldKey] as $key=>$value) {
$newArray[$key][$fieldKey] = $value;
}
}
$newArray will hold data as you want
Array (
[0] => Array ( [level] => 1 [build_time] => 123 )
[1] => Array ( [level] => 2 [build_time] => 456 )
)
One should note that in the case of array indexing, array[~i]
amounts to reversed_array[i]
. It can be seen as indexing starting from the end of the array:
[0, 1, 2, 3, 4, 5, 6, 7, 8]
^ ^
i ~i
Dividing the app into blueprints is a great idea. However, if this isn't enough, and if you want to then divide the Blueprint itself into multiple py files, this is also possible using the regular Python module import system, and then looping through all the routes that get imported from the other files.
I created a Gist with the code for doing this:
https://gist.github.com/Jaza/61f879f577bc9d06029e
As far as I'm aware, this is the only feasible way to divide up a Blueprint at the moment. It's not possible to create "sub-blueprints" in Flask, although there's an issue open with a lot of discussion about this:
https://github.com/mitsuhiko/flask/issues/593
Also, even if it were possible (and it's probably do-able using some of the snippets from that issue thread), sub-blueprints may be too restrictive for your use case anyway - e.g. if you don't want all the routes in a sub-module to have the same URL sub-prefix.
svn add --force .
This will add any unversioned file in the current directory and all versioned child directories.
For .NET 2.0:
list.Find(delegate(Item i) { return i.Property == someValue; });
Try to use protocol relative links.
Your link is http://example.com/script.js, use:
<script src="//example.com/script.js" type="text/javascript"></script>
In this way, you can leave the scheme free (do not indicate the protocol in the links) and trust that the browser uses the protocol of the embedded Web page. If your users visit the HTTP version of your Web page, the script will be loaded over http:// and if your users visit the HTTPS version of your Web site, the script will be loaded over https://.
Seen in: https://developer.mozilla.org/es/docs/Seguridad/MixedContent/arreglar_web_con_contenido_mixto
TOPIC Name: List VS Set
I have just gone through Java's most important topic called Collections Framework. I thought to share my little knowledge about Collections with you. List, Set, Map are the most important topic of it. So let's start with List and Set.
Difference between List and Set:
List is a collection class which extends AbstractList
class where as Set is a collection class which extends AbstractSet
class but both implements Collection interface.
List interface allows duplicate values (elements) whereas Set interface does not allow duplicate values. In case of duplicate elements in Set, it replaces older values.
List interface allows NULL values where as Set interface does not allow Null values. In case of using Null values in Set it gives NullPointerException
.
List interface maintains insertion order. That means the way we add the elements in the List in the same way we obtain it using iterator or for-each style. Whereas Set
implementations do not necessarily maintain insertion order. (Although SortedSet
does using TreeSet
, and LinkedHashSet
maintains insertion order).
List interface has its own methods defined whereas Set interface does not have its own method so Set uses Collection interface methods only.
List interface has one legacy class called Vector
whereas Set interface does not have any legacy class
Last but not the least... The listIterator()
method can only be used to cycle through the elements within List Classes whereas we can use iterator() method to access Set class elements
Anything else can we add? Please let me know.
Thanks.
To stop your loop you can use break with label. It will stop your loop for sure. Code is written in Java but aproach is the same for the all languages.
public void exitFromTheLoop() {
boolean value = true;
loop_label:for (int i = 0; i < 10; i++) {
if(!value) {
System.out.println("iteration: " + i);
break loop_label;
}
}
}
}
FireFox have problemes for getBBox(), i need to do this in vanillaJS.
I've a better Way and is the same result as real svg.getBBox() function !
With this good post : Get the real size of a SVG/G element
var el = document.getElementById("yourElement"); // or other selector like querySelector()
var rect = el.getBoundingClientRect(); // get the bounding rectangle
console.log( rect.width );
console.log( rect.height);
I found easiest solution.
@XmlElement(name="attribute")
public String[] getAttributes(){
return attributes.keySet().toArray(new String[1]);
}
}
Now it will generate in you xml output like this:
<attribute>key1<attribute>
...
<attribute>keyN<attribute>
... And for those who - like me - are very early in their numpy learning curve,
import numpy as np
pure = np.linspace(-1, 1, 100)
noise = np.random.normal(0, 1, 100)
signal = pure + noise
I thought off a simple way to do the toast! using UIAlertController without button! We use the button text as our message! get it? see below code:
func alert(title: String?, message: String?, bdy:String) {
let alertController = UIAlertController(title: title, message: message, preferredStyle: .Alert)
let okAction = UIAlertAction(title: bdy, style: .Cancel, handler: nil)
alertController.addAction(okAction)
self.presentViewController(alertController, animated: true, completion: nil)
let delayTime = dispatch_time(DISPATCH_TIME_NOW, Int64(2 * Double(NSEC_PER_SEC)))
dispatch_after(delayTime, dispatch_get_main_queue()) {
//print("Bye. Lovvy")
alertController.dismissViewControllerAnimated(true, completion: nil)
}
}
use it like this:
self.alert(nil,message:nil,bdy:"Simple Toast!") // toast
self.alert(nil,message:nil,bdy:"Alert") // alert with "Alert" button
I'm always surprised by the extensive use of trailing slashes on non-directory URLs (WordPress among others). This really shouldn't be an either-or debate because putting a slash after a resource is semantically wrong. The web was designed to deliver addressable resources, and those addresses - URLs - were designed to emulate a *nix-style file-system hierarchy. In that context:
Using these guidelines, it's wrong to put a slash after a non-directory resource.
Although this question was more specifically about IP addresses in Subject Alt. Names, the commands are similar (using DNS
entries for a host name and IP
entries for IP addresses).
To quote myself:
If you're using
keytool
, as of Java 7, keytool has an option to include a Subject Alternative Name (see the table in the documentation for -ext): you could use -ext san=dns:www.example.com or -ext san=ip:10.0.0.1
Note that you only need Java 7's keytool
to use this command. Once you've prepared your keystore, it should work with previous versions of Java.
(The rest of this answer also mentions how to do this with OpenSSL, but it doesn't seem to be what you're using.)
Update to the latest conda and latest navigator will resolve this issue.
Open the Anaconda Prompt and type
and
Use closure structure, this would reduce your extra for loop. You can do it in a single for loop:
var funcs = [];
for (var i = 0; i < 3; i++) {
(funcs[i] = function() {
console.log("My value: " + i);
})(i);
}
in hive 0.1 you can use SHOW CREATE TABLE
to find the path where hive store data.
in other versions, there is no good way to do this.
upadted:
thanks Joe K
use DESCRIBE FORMATTED <table>
to show table information.
ps: database.tablename is not supported here.
Try this in your forth column
=COUNTIF(B:B; ">" & B2) + 1
Replace B2 with B3 for next row and so on.
What this does is it counts how many records have more points then current one and then this adds current record position (+1 part).
Yes, you can use the native javascript Date() object and its methods.
For instance you can create a function like:
function formatDate(date) {
var hours = date.getHours();
var minutes = date.getMinutes();
var ampm = hours >= 12 ? 'pm' : 'am';
hours = hours % 12;
hours = hours ? hours : 12; // the hour '0' should be '12'
minutes = minutes < 10 ? '0'+minutes : minutes;
var strTime = hours + ':' + minutes + ' ' + ampm;
return (date.getMonth()+1) + "/" + date.getDate() + "/" + date.getFullYear() + " " + strTime;
}
var d = new Date();
var e = formatDate(d);
alert(e);
And display also the am / pm and the correct time.
Remember to use getFullYear() method and not getYear() because it has been deprecated.
You'll have to use the "userInfo" variant and pass a NSDictionary object that contains the messageTotal integer:
NSDictionary* userInfo = @{@"total": @(messageTotal)};
NSNotificationCenter* nc = [NSNotificationCenter defaultCenter];
[nc postNotificationName:@"eRXReceived" object:self userInfo:userInfo];
On the receiving end you can access the userInfo dictionary as follows:
-(void) receiveTestNotification:(NSNotification*)notification
{
if ([notification.name isEqualToString:@"TestNotification"])
{
NSDictionary* userInfo = notification.userInfo;
NSNumber* total = (NSNumber*)userInfo[@"total"];
NSLog (@"Successfully received test notification! %i", total.intValue);
}
}
c_str() converts a C++ string into a C-style string which is essentially a null terminated array of bytes. You use it when you want to pass a C++ string into a function that expects a C-style string (e.g. a lot of the Win32 API, POSIX style functions, etc).
did you tried converting the first char of the string to lowercase on if(fruits[i].charAt(0) == currChar)
and char currChar = fruits[0].charAt(0)
statements?
You can't assign a process output directly into a var, you need to parse the output with a For /F loop:
@Echo OFF
FOR /F "Tokens=2,*" %%A IN (
'Reg Query "HKEY_CURRENT_USER\Software\Macromedia\FlashPlayer" /v "CurrentVersion"'
) DO (
REM Set "Version=%%B"
Echo Version: %%B
)
Pause&Exit
PS: Change the reg key used if needed.
Create PROCEDURE Stored_Procedure_Name_2
(
@param1 int = 5 ,
@param2 varchar(max),
@param3 varchar(max)
)
AS
DECLARE @Table TABLE
(
/*TABLE DEFINITION*/
id int,
name varchar(max),
address varchar(max)
)
INSERT INTO @Table
EXEC Stored_Procedure_Name_1 @param1 , @param2 = 'Raju' ,@param3 =@param3
SELECT id ,name ,address FROM @Table
If you want a code that is readable by all programmers (c++, java, and others) use the original old form instead of cryptographic new features
atp::ta::DataDrawArrayInfo* ddai;
for(size_t i = 0; i < m_dataDraw->m_dataDrawArrayInfoList.size(); i++) {
ddai = m_dataDraw->m_dataDrawArrayInfoList[i];
//...
}
You can issue the INFO command, which returns information and statistics about the server. See here for an example output.
As mentioned in the comments by mVChr, you can use info keyspace
directly on the redis-cli.
redis> INFO
# Server
redis_version:6.0.6
redis_git_sha1:00000000
redis_git_dirty:0
redis_build_id:b63575307aaffe0a
redis_mode:standalone
os:Linux 5.4.0-1017-aws x86_64
arch_bits:64
multiplexing_api:epoll
atomicvar_api:atomic-builtin
gcc_version:9.3.0
process_id:2854672
run_id:90a5246f10e0aeb6b02cc2765b485d841ffc924e
tcp_port:6379
uptime_in_seconds:2593097
uptime_in_days:30
hz:10
configured_hz:10
lru_clock:4030200
executable:/usr/local/bin/redis-server
You need to use the __getitem__
method.
class MyClass:
def __getitem__(self, key):
return key * 2
myobj = MyClass()
myobj[3] #Output: 6
And if you're going to be setting values you'll need to implement the __setitem__
method too, otherwise this will happen:
>>> myobj[5] = 1
Traceback (most recent call last):
File "<stdin>", line 1, in <module>
AttributeError: MyClass instance has no attribute '__setitem__'
You can also use the following query to get Schemas for a specific Database user:
select s.schema_id, s.name as schema_name
from sys.schemas s
inner join sys.sysusers u on u.uid = s.principal_id
where u.name='DataBaseUserUserName'
order by s.name
You are copying singleton's customVar
into a singletonVar
variable and changing that variable does not affect the original value in singleton.
// This does not update singleton variable
// It just assigns value of your local variable
Log.d("Test",singletonVar);
singletonVar="World";
Log.d("Test",singletonVar);
// This actually assigns value of variable in singleton
Singleton.customVar = singletonVar;
In jQuery you can trigger a click like this:
$('#foo').trigger('click');
More here:
http://api.jquery.com/trigger/
If you want to do the same using prototype, it looks like this:
$('foo').simulate('click');
I think another way to do it is to use in-line css, just add your background-color in the html code
<div class="jumbotron" style="background-color:blue;">
<h3>Piece of text</h3>
</div>
I found it works great using display:block; on the image and vertical-align:top; on the text.
.imagebox {_x000D_
width:200px;_x000D_
float:left;_x000D_
height:88px;_x000D_
position:relative;_x000D_
background-color: #999;_x000D_
}_x000D_
.container {_x000D_
width:600px;_x000D_
height:176px;_x000D_
background-color: #666;_x000D_
position:relative;_x000D_
overflow:hidden;_x000D_
}_x000D_
.text {_x000D_
color: #000;_x000D_
font-size: 11px;_x000D_
font-family: robotomeduim, sans-serif;_x000D_
vertical-align:top;_x000D_
_x000D_
}_x000D_
_x000D_
.imagebox img{ display:block;}
_x000D_
<div class="container">_x000D_
<div class="imagebox">_x000D_
<img src="http://machdiamonds.com/n69xvs.jpg" /> <span class="text">Image title</span>_x000D_
</div>_x000D_
<div class="imagebox">_x000D_
<img src="http://machdiamonds.com/n69xvs.jpg" /> <span class="text">Image title</span>_x000D_
</div>_x000D_
<div class="imagebox">_x000D_
<img src="http://machdiamonds.com/n69xvs.jpg" /> <span class="text">Image title</span>_x000D_
</div>_x000D_
<div class="imagebox">_x000D_
<img src="http://machdiamonds.com/n69xvs.jpg" /> <span class="text">Image title</span>_x000D_
</div>_x000D_
<div class="imagebox">_x000D_
<img src="http://machdiamonds.com/n69xvs.jpg" /> <span class="text">Image title</span>_x000D_
</div>_x000D_
<div class="imagebox">_x000D_
<img src="http://machdiamonds.com/n69xvs.jpg" /> <span class="text">Image title</span>_x000D_
</div>_x000D_
</div>
_x000D_
or you can edit the code a JS FIDDLE
With Apache Commons IO you can do this in one line.
IOUtils.toString(request.getReader())
In the project path Terminal django_project#
sudo chown django:django *
Maybe I missed the question, but why not:
class MyException(Exception):
pass
Edit: to override something (or pass extra args), do this:
class ValidationError(Exception):
def __init__(self, message, errors):
# Call the base class constructor with the parameters it needs
super(ValidationError, self).__init__(message)
# Now for your custom code...
self.errors = errors
That way you could pass dict of error messages to the second param, and get to it later with e.errors
Python 3 Update: In Python 3+, you can use this slightly more compact use of super()
:
class ValidationError(Exception):
def __init__(self, message, errors):
# Call the base class constructor with the parameters it needs
super().__init__(message)
# Now for your custom code...
self.errors = errors
import java.util.Iterator;
import android.database.Cursor;
public class IterableCursor implements Iterable<Cursor>, Iterator<Cursor> {
Cursor cursor;
int toVisit;
public IterableCursor(Cursor cursor) {
this.cursor = cursor;
toVisit = cursor.getCount();
}
public Iterator<Cursor> iterator() {
cursor.moveToPosition(-1);
return this;
}
public boolean hasNext() {
return toVisit>0;
}
public Cursor next() {
// if (!hasNext()) {
// throw new NoSuchElementException();
// }
cursor.moveToNext();
toVisit--;
return cursor;
}
public void remove() {
throw new UnsupportedOperationException();
}
}
Example code:
static void listAllPhones(Context context) {
Cursor phones = context.getContentResolver().query(ContactsContract.CommonDataKinds.Phone.CONTENT_URI, null, null, null, null);
for (Cursor phone : new IterableCursor(phones)) {
String name = phone.getString(phone.getColumnIndex(ContactsContract.CommonDataKinds.Phone.DISPLAY_NAME));
String phoneNumber = phone.getString(phone.getColumnIndex(ContactsContract.CommonDataKinds.Phone.NUMBER));
Log.d("name=" + name + " phoneNumber=" + phoneNumber);
}
phones.close();
}
Why don't you just use the join function? In a regex findall() or group() you will need a string so:
import re
regex = re.compile('th.s')
l = ['this', 'is', 'just', 'a', 'test']
matches = re.findall(regex, ' '.join(l)) #Syntax option 1
matches = regex.findall(' '.join(l)) #Syntax option 2
The join() function allows you to transform a list in a string. The single quote before join is what you will put in the middle of each string on list. When you execute this code part (' '.join(l)) you'll receive this:
'this is just a test'
So you can use the findal() function.
I know i am 7 years late, but i recently create an account because I'm studying and other people could have the same question. I hope this help you and others.
Update After @FélixBrunet comments:
import re
regex = re.compile(r'th.s')
l = ['this', 'is', 'just', 'a', 'test','th','s', 'this is']
matches2=[] #declare a list
for i in range(len(l)): #loop with the iterations = list l lenght. This avoid the first item commented by @Felix
if regex.findall(l[i]) != []: #if the position i is not an empty list do the next line. PS: remember regex.findall() command return a list.
if l[i]== ''.join(regex.findall(l[i])): # If the string of i position of l list = command findall() i position so it'll allow the program do the next line - this avoid the second item commented by @Félix
matches2.append(''.join(regex.findall(l[i]))) #adds in the list just the string in the matches2 list
print(matches2)
I have Had the same issue and the only Solution i found was open Package manager> Select Microsoft and .Net as Package Source and You will install it..
X <- data.frame(Variable1=c(11,14,12,15),Variable2=c(2,3,1,4))
> X
Variable1 Variable2
1 11 2
2 14 3
3 12 1
4 15 4
> X[X$Variable1!=11 & X$Variable1!=12, ]
Variable1 Variable2
2 14 3
4 15 4
> X[ ! X$Variable1 %in% c(11,12), ]
Variable1 Variable2
2 14 3
4 15 4
You can functionalize this however you like.
The only selector I see is a[id$="name"]
(all links with id finishing by "name") but it's not as restrictive as it should.
I found that simply setting the src to an empty string and adding a rule to your CSS to hide the broken image icon works just fine.
[src=''] {
visibility: hidden;
}
Use .rsplit()
or .rpartition()
instead:
s.rsplit(',', 1)
s.rpartition(',')
str.rsplit()
lets you specify how many times to split, while str.rpartition()
only splits once but always returns a fixed number of elements (prefix, delimiter & postfix) and is faster for the single split case.
Demo:
>>> s = "a,b,c,d"
>>> s.rsplit(',', 1)
['a,b,c', 'd']
>>> s.rsplit(',', 2)
['a,b', 'c', 'd']
>>> s.rpartition(',')
('a,b,c', ',', 'd')
Both methods start splitting from the right-hand-side of the string; by giving str.rsplit()
a maximum as the second argument, you get to split just the right-hand-most occurrences.
The naive algorithm, which is what you've got once you correct it as noted in comments, is O(n^3).
There do exist algorithms that reduce this somewhat, but you're not likely to find an O(n^2) implementation. I believe the question of the most efficient implementation is still open.
See this wikipedia article on Matrix Multiplication for more information.
A local variable is memory on the stack, that memory is not automatically invalidated when you go out of scope. From a Function deeper nested (higher on the stack in memory), its perfectly safe to access this memory.
Once the Function returns and ends though, things get dangerous. Usually the memory is not deleted or overwritten when you return, meaning the memory at that adresss is still containing your data - the pointer seems valid.
Until another function builds up the stack and overwrites it. This is why this can work for a while - and then suddenly cease to function after one particularly deeply nested set of functions, or a function with really huge sized or many local objects, reaches that stack-memory again.
It even can happen that you reach the same program part again, and overwrite your old local function variable with the new function variable. All this is very dangerous and should be heavily discouraged. Do not use pointers to local objects!
You need to do two things:
The code:
dtt$model <- factor(dtt$model, levels=c("mb", "ma", "mc"), labels=c("MBB", "MAA", "MCC"))
library(ggplot2)
ggplot(dtt, aes(x=year, y=V, group = model, colour = model, ymin = lower, ymax = upper)) +
geom_ribbon(alpha = 0.35, linetype=0)+
geom_line(aes(linetype=model), size = 1) +
geom_point(aes(shape=model), size=4) +
theme(legend.position=c(.6,0.8)) +
theme(legend.background = element_rect(colour = 'black', fill = 'grey90', size = 1, linetype='solid')) +
scale_linetype_discrete("Model 1") +
scale_shape_discrete("Model 1") +
scale_colour_discrete("Model 1")
However, I think this is really ugly as well as difficult to interpret. It's far better to use facets:
ggplot(dtt, aes(x=year, y=V, group = model, colour = model, ymin = lower, ymax = upper)) +
geom_ribbon(alpha=0.2, colour=NA)+
geom_line() +
geom_point() +
facet_wrap(~model)
if using /bin/sh
you can use:
if [ <condition> ] && [ <condition> ]; then
...
fi
if using /bin/bash
you can use:
if [[ <condition> && <condition> ]]; then
...
fi
It is very important to understand both sessionStorage
and localStorage
as they both have different uses:
From MDN:
All of your web storage data is contained within two object-like structures inside the browser: sessionStorage and localStorage. The first one persists data for as long as the browser is open (the data is lost when the browser is closed) and the second one persists data even after the browser is closed and then opened again.
sessionStorage
- Saves data until the browser is closed, the data is deleted when the tab/browser is closed.
localStorage
- Saves data "forever" even after the browser is closed BUT you shouldn't count on the data you store to be there later, the data might get deleted by the browser at any time because of pretty much anything, or deleted by the user, best practice would be to validate that the data is there first, and continue the rest if it is there. (or set it up again if its not there)
To understand more, read here: localStorage | sessionStorage
Everyone here is very wrong. All you need is to follow the steps that Apple provides in Managing Your Digital Identities.
It instructs you to export your certificates through Xcode and reimport through Xcode. It works great, but make sure your username is the same on both computers or it will fail.
I hide the warnings in the pink boxes by running the following code in a cell:
from IPython.display import HTML
HTML('''<script>
code_show_err=false;
function code_toggle_err() {
if (code_show_err){
$('div.output_stderr').hide();
} else {
$('div.output_stderr').show();
}
code_show_err = !code_show_err
}
$( document ).ready(code_toggle_err);
</script>
To toggle on/off output_stderr, click <a href="javascript:code_toggle_err()">here</a>.''')
To clone a model with multiple inheritance levels, i.e. >= 2, or ModelC below
class ModelA(models.Model):
info1 = models.CharField(max_length=64)
class ModelB(ModelA):
info2 = models.CharField(max_length=64)
class ModelC(ModelB):
info3 = models.CharField(max_length=64)
Please refer the question here.
Use \vspace{-\topsep}
before \begin{itemize}
.
Use \setlength{\parskip}{0pt} \setlength{\itemsep}{0pt plus 1pt}
after \begin{itemize}
.
And for the space after the list, use \vspace{-\topsep}
after \end{itemize}
.
\vspace{-\topsep}
\begin{itemize}
\setlength{\parskip}{0pt}
\setlength{\itemsep}{0pt plus 1pt}
\item ...
\item ...
\end{itemize}
\vspace{-\topsep}
pd.to_numeric
with errors='coerce'
# Setup
s = pd.Series(['1', '2', '3', '4', '.'])
s
0 1
1 2
2 3
3 4
4 .
dtype: object
pd.to_numeric(s, errors='coerce')
0 1.0
1 2.0
2 3.0
3 4.0
4 NaN
dtype: float64
If you need the NaN
s filled in, use Series.fillna
.
pd.to_numeric(s, errors='coerce').fillna(0, downcast='infer')
0 1
1 2
2 3
3 4
4 0
dtype: float64
Note, downcast='infer'
will attempt to downcast floats to integers where possible. Remove the argument if you don't want that.
From v0.24+, pandas introduces a Nullable Integer type, which allows integers to coexist with NaNs. If you have integers in your column, you can use
pd.__version__ # '0.24.1' pd.to_numeric(s, errors='coerce').astype('Int32') 0 1 1 2 2 3 3 4 4 NaN dtype: Int32
There are other options to choose from as well, read the docs for more.
DataFrames
If you need to extend this to DataFrames, you will need to apply it to each row. You can do this using DataFrame.apply
.
# Setup.
np.random.seed(0)
df = pd.DataFrame({
'A' : np.random.choice(10, 5),
'C' : np.random.choice(10, 5),
'B' : ['1', '###', '...', 50, '234'],
'D' : ['23', '1', '...', '268', '$$']}
)[list('ABCD')]
df
A B C D
0 5 1 9 23
1 0 ### 3 1
2 3 ... 5 ...
3 3 50 2 268
4 7 234 4 $$
df.dtypes
A int64
B object
C int64
D object
dtype: object
df2 = df.apply(pd.to_numeric, errors='coerce')
df2
A B C D
0 5 1.0 9 23.0
1 0 NaN 3 1.0
2 3 NaN 5 NaN
3 3 50.0 2 268.0
4 7 234.0 4 NaN
df2.dtypes
A int64
B float64
C int64
D float64
dtype: object
You can also do this with DataFrame.transform
; although my tests indicate this is marginally slower:
df.transform(pd.to_numeric, errors='coerce')
A B C D
0 5 1.0 9 23.0
1 0 NaN 3 1.0
2 3 NaN 5 NaN
3 3 50.0 2 268.0
4 7 234.0 4 NaN
If you have many columns (numeric; non-numeric), you can make this a little more performant by applying pd.to_numeric
on the non-numeric columns only.
df.dtypes.eq(object)
A False
B True
C False
D True
dtype: bool
cols = df.columns[df.dtypes.eq(object)]
# Actually, `cols` can be any list of columns you need to convert.
cols
# Index(['B', 'D'], dtype='object')
df[cols] = df[cols].apply(pd.to_numeric, errors='coerce')
# Alternatively,
# for c in cols:
# df[c] = pd.to_numeric(df[c], errors='coerce')
df
A B C D
0 5 1.0 9 23.0
1 0 NaN 3 1.0
2 3 NaN 5 NaN
3 3 50.0 2 268.0
4 7 234.0 4 NaN
Applying pd.to_numeric
along the columns (i.e., axis=0
, the default) should be slightly faster for long DataFrames.
You can use .equals
for columns or entire dataframes.
df['col1'].equals(df['col2'])
If they're equal, that statement will return True
, else False
.
I wrote a simple node script for deleting messages from public/private channels and chats. You can modify and use it.
https://gist.github.com/firatkucuk/ee898bc919021da621689f5e47e7abac
First, modify your token in the scripts configuration section then run the script:
node ./delete-slack-messages CHANNEL_ID
Also, the channel ID can be seen in the browser URL when you open slack in the browser. e.g.
https://mycompany.slack.com/messages/MY_CHANNEL_ID/
or
https://app.slack.com/client/WORKSPACE_ID/MY_CHANNEL_ID
I try my darned best to write exception-safe code, yes.
That means I take care to keep an eye on which lines can throw. Not everyone can, and it is critically important to keep that in mind. The key is really to think about, and design your code to satisfy, the exception guarantees defined in the standard.
Can this operation be written to provide the strong exception guarantee? Do I have to settle for the basic one? Which lines may throw exceptions, and how can I ensure that if they do, they don't corrupt the object?
Just for completeness, using the modern .format()
syntax:
>>> numbers = [1, 15, 255]
>>> ''.join('{:02X}'.format(a) for a in numbers)
'010FFF'
Another easy alternative:
Since $PWD
will usually contain a slash /
, use |
instead of /
for the sed statement:
sed -e "s|xxx|$PWD|"
The below are the typical situation where we shall get ERR_FILE_NOT_FOUND even file avail in respective folder.
Code:
@font-face {
font-family: Eau_Sans_Bold;
src: url("/fonts/eau_sans_bold.otf") format("opentype");
}
Error:
GET file:///C:/fonts/eau_sans_bold.otf net::ERR_FILE_NOT_FOUND
Answer or Solution.:
@font-face {
font-family: Eau_Sans_Book;
src: url("../fonts/eau_sans_book.otf") format("opentype");
}
Basically browser not able to pick if we metion just /font/. We should to mention ../fonts/ This will work. So, we wont get ERR_FILE_NOT_FOUND.
Try imaskjs. It has Number, RegExp and other masks. Very simple to extend.
You should be using @RequestParam
instead of @ModelAttribute
, e.g.
@RequestMapping("/{someID}")
public @ResponseBody int getAttr(@PathVariable(value="someID") String id,
@RequestParam String someAttr) {
}
You can even omit @RequestParam
altogether if you choose, and Spring will assume that's what it is:
@RequestMapping("/{someID}")
public @ResponseBody int getAttr(@PathVariable(value="someID") String id,
String someAttr) {
}
While you can't write macros, when it comes to simplifying things like your example, C# 6.0 now offers static usings. Here's the example Martin Pernica gave on his Medium article:
using static System.Console; // Note the static keyword
namespace CoolCSharp6Features
{
public class Program
{
public static int Main(string[] args)
{
WriteLine("Hellow World without Console class name prefix!");
return 0;
}
}
}
It looks like the machine you're trying to run this on has only 256 MB memory.
Maybe the JVM tries to allocate a large, contiguous block of 64 MB memory. The 192 MB that you have free might be fragmented into smaller pieces, so that there is no contiguous block of 64 MB free to allocate.
Try starting your Java program with a smaller heap size, for example:
java -Xms16m ...
Use the "has attribute" selector:
$('p[MyTag]')
Or to select one where that attribute has a specific value:
$('p[MyTag="Sara"]')
There are other selectors for "attribute value starts with", "attribute value contains", etc.
Slightly modified from: Python Pandas Dataframe: Normalize data between 0.01 and 0.99? but from some of the comments thought it was relevant (sorry if considered a repost though...)
I wanted customized normalization in that regular percentile of datum or z-score was not adequate. Sometimes I knew what the feasible max and min of the population were, and therefore wanted to define it other than my sample, or a different midpoint, or whatever! This can often be useful for rescaling and normalizing data for neural nets where you may want all inputs between 0 and 1, but some of your data may need to be scaled in a more customized way... because percentiles and stdevs assumes your sample covers the population, but sometimes we know this isn't true. It was also very useful for me when visualizing data in heatmaps. So i built a custom function (used extra steps in the code here to make it as readable as possible):
def NormData(s,low='min',center='mid',hi='max',insideout=False,shrinkfactor=0.):
if low=='min':
low=min(s)
elif low=='abs':
low=max(abs(min(s)),abs(max(s)))*-1.#sign(min(s))
if hi=='max':
hi=max(s)
elif hi=='abs':
hi=max(abs(min(s)),abs(max(s)))*1.#sign(max(s))
if center=='mid':
center=(max(s)+min(s))/2
elif center=='avg':
center=mean(s)
elif center=='median':
center=median(s)
s2=[x-center for x in s]
hi=hi-center
low=low-center
center=0.
r=[]
for x in s2:
if x<low:
r.append(0.)
elif x>hi:
r.append(1.)
else:
if x>=center:
r.append((x-center)/(hi-center)*0.5+0.5)
else:
r.append((x-low)/(center-low)*0.5+0.)
if insideout==True:
ir=[(1.-abs(z-0.5)*2.) for z in r]
r=ir
rr =[x-(x-0.5)*shrinkfactor for x in r]
return rr
This will take in a pandas series, or even just a list and normalize it to your specified low, center, and high points. also there is a shrink factor! to allow you to scale down the data away from endpoints 0 and 1 (I had to do this when combining colormaps in matplotlib:Single pcolormesh with more than one colormap using Matplotlib) So you can likely see how the code works, but basically say you have values [-5,1,10] in a sample, but want to normalize based on a range of -7 to 7 (so anything above 7, our "10" is treated as a 7 effectively) with a midpoint of 2, but shrink it to fit a 256 RGB colormap:
#In[1]
NormData([-5,2,10],low=-7,center=1,hi=7,shrinkfactor=2./256)
#Out[1]
[0.1279296875, 0.5826822916666667, 0.99609375]
It can also turn your data inside out... this may seem odd, but I found it useful for heatmapping. Say you want a darker color for values closer to 0 rather than hi/low. You could heatmap based on normalized data where insideout=True:
#In[2]
NormData([-5,2,10],low=-7,center=1,hi=7,insideout=True,shrinkfactor=2./256)
#Out[2]
[0.251953125, 0.8307291666666666, 0.00390625]
So now "2" which is closest to the center, defined as "1" is the highest value.
Anyways, I thought my application was relevant if you're looking to rescale data in other ways that could have useful applications to you.
Java doesn't have direct equivalent of C# language feature called async/await, however there's a different approach to the problem that async/await tries to solve. It's called project Loom, which will provide virtual threads for high-throughput concurrency. It will be available in some future version of OpenJDK.
This approach also solves "colored function problem" that async/await has.
Similar feature can be also found in Golang (goroutines).
Try using os.makedirs:
import os
import errno
try:
os.makedirs(<path>)
except OSError as e:
if errno.EEXIST != e.errno:
raise
You can create new environment variables with RewriteRule lines, as mentioned by OP:
RewriteRule ^(.*) - [E=TEST0:%{DOCUMENT_ROOT}/blog/html_cache/$1.html]
But if you can't get a server-side script to work, how can you then read this environment variable? One solution is to set a header:
Header set TEST_FOOBAR "%{REDIRECT_TEST0}e"
The value accepts format specifiers, including the %{NAME}e
specifier for environment variables (don't forget the lowercase e). Sometimes, you'll need to add the REDIRECT_
prefix, but I haven't worked out when the prefix gets added and when it doesn't.
Here is the YUI counterpart to the jQuery posts above.
<script>
YAHOO.util.Event.onDOMReady(function() {
document.getElementById("foo").onclick = function (){alert('foo');};
});
</script>
The best way I have found so far is to use React Context but to isolate it inside a high order provider component.
There is also array_replace
, where an original array is modified by other arrays preserving the key => value association without creating duplicate keys.
My solution:
private static String trim(String string, String charSequence) {
var str = string;
str = str.replace(" ", "$SAVE_SPACE$").
replace(charSequence, " ").
trim().
replace(" ", charSequence).
replace("$SAVE_SPACE$", " ");
return str;
}
I have use below code to encode the special character by specifying encode format.
String text = "This is an example é";
byte[] byteText = text.getBytes(Charset.forName("UTF-8"));
//To get original string from byte.
String originalString= new String(byteText , "UTF-8");
margin does not work unfortunately on individual cells, however you could add extra columns between the two cells you want to put a space between... another option is to use a border with the same colour as the background...
1.Make Sure Website Url and platform added, if not then visit https://developers.facebook.com/quickstarts/ then Select Platform -> Setup SDK -> Website Url And so on..
Note: website url can't be like this : https://www.example.com just remove www and make it simple and working ;)
2.Goto App Dashboard -> Setting -> Click on Advanced Tab then go to bottom of the page and enable Embedded Browser OAuth Login and leave Valid OAuth redirect URIs blank and Save it
This answer will be robust enough to work for elements that aren't on the page, therefore failing gracefully (not throwing an exception) if the selector failed to find the element.
const nameSelector = '[data-automation="name-input"]';
const nameInputIsDisplayed = () => {
return $$(nameSelector).count()
.then(count => count !== 0)
}
it('should be displayed', () => {
nameInputIsDisplayed().then(isDisplayed => {
expect(isDisplayed).toBeTruthy()
})
})
I know it's an old post. But it happens that I had a query that used group by just to return distinct values when using that query in toad and oracle reports everything worked fine, I mean a good response time. When we migrated from Oracle 9i to 11g the response time in Toad was excellent but in the reporte it took about 35 minutes to finish the report when using previous version it took about 5 minutes.
The solution was to change the group by and use DISTINCT and now the report runs in about 30 secs.
I hope this is useful for someone with the same situation.
In case the XML store in the CLOB field in the database table. E.g for this XML:
<?xml version="1.0" encoding="UTF-8" standalone="yes"?>
<Awmds>
<General_segment>
<General_segment_id>
<Customs_office_code>000</Customs_office_code>
</General_segment_id>
</General_segment>
</Awmds>
This is the Extract Query:
SELECT EXTRACTVALUE (
xmltype (T.CLOB_COLUMN_NAME),
'/Awmds/General_segment/General_segment_id/Customs_office_code')
AS Customs_office_code
FROM TABLE_NAME t;
class MyParent:
def sayHi():
print('Mamma says hi')
from path.to.MyParent import MyParent
class ChildClass(MyParent):
pass
An instance of ChildClass
will then inherit the sayHi()
method.
HTTP transaction, basic access authentication, is not suitable for RBAC, because basic access authentication uses the encrypted username:password every time to identify, while what is needed in RBAC is the Role the user wants to use for a specific call. RBAC does not validate permissions on username, but on roles.
You could tric around to concatenate like this: usernameRole:password, but this is bad practice, and it is also inefficient because when a user has more roles, the authentication engine would need to test all roles in concatenation, and that every call again. This would destroy one of the biggest technical advantages of RBAC, namely a very quick authorization-test.
So that problem cannot be solved using basic access authentication.
To solve this problem, session-maintaining is necessary, and that seems, according to some answers, in contradiction with REST.
That is what I like about the answer that REST should not be treated as a religion. In complex business cases, in healthcare, for example, RBAC is absolutely common and necessary. And it would be a pity if they would not be allowed to use REST because all REST-tools designers would treat REST as a religion.
For me there are not many ways to maintain a session over HTTP. One can use cookies, with a sessionId, or a header with a sessionId.
If someone has another idea I will be glad to hear it.
May be you initialize pDialog globally, Then remove it and intialize your view or dialog locally.I have same issue, I have done this and my issue is resolved. Hope it will work for u.
Requests does not currently support asyncio
and there are no plans to provide such support. It's likely that you could implement a custom "Transport Adapter" (as discussed here) that knows how to use asyncio
.
If I find myself with some time it's something I might actually look into, but I can't promise anything.
In my case, I had accidentally named a folder 'samples '. I couldn't see the space when I did 'ls -la'.
Eventually I realized this when I tried tabbing to autocomplete and saw 'samples\ /'.
To fix this I ran
mv samples\ samples
The code that worked for me on a Windows 10 machine using Sublime Text 3
{
"cmd" : "gcc $file_name -o ${file_base_name}",
"selector" : "source.c",
"shell" : true,
"working_dir" : "$file_path",
"variants":
[
{
"name": "Run",
"cmd": "${file_base_name}"
}
]
}
Is your compiler set in expert mode?! If yes, it shouldn't compile. Modern compilers are tired of "Hello World!"
CMS has it right, but also if you use the server explorer in visual studio and play around with the performance counter tab then you can figure out how to get lots of useful metrics.
Use read -p
:
# fullname="USER INPUT"
read -p "Enter fullname: " fullname
# user="USER INPUT"
read -p "Enter user: " user
If you like to confirm:
read -p "Continue? (Y/N): " confirm && [[ $confirm == [yY] || $confirm == [yY][eE][sS] ]] || exit 1
You should also quote your variables to prevent pathname expansion and word splitting with spaces:
# passwd "$user"
# mkdir "$home"
# chown "$user:$group" "$home"
You seem to look for the input attribute value
, "the initial value of the control"?
<input type="text" value="Morlodenhof 7" />
https://developer.mozilla.org/de/docs/Web/HTML/Element/Input#attr-value
Use a for
loop instead of .forEach()
var myObj = [{"a": "1","b": null},{"a": "2","b": 5}]
var result = false
for(var call of myObj) {
console.log(call)
var a = call['a'], b = call['b']
if(a == null || b == null) {
result = false
break
}
}
You have to specify project_id
:
reverse('edit_project', kwargs={'project_id':4})
Doc here
The below code worked for me for any type of cell.
InputStream inp =getClass().getResourceAsStream("filename.xls"));
Workbook wb = WorkbookFactory.create(inp);
DataFormatter objDefaultFormat = new DataFormatter();
FormulaEvaluator objFormulaEvaluator = new HSSFFormulaEvaluator((HSSFWorkbook) wb);
Sheet sheet= wb.getSheetAt(0);
Iterator<Row> objIterator = sheet.rowIterator();
while(objIterator.hasNext()){
Row row = objIterator.next();
Cell cellValue = row.getCell(0);
objFormulaEvaluator.evaluate(cellValue); // This will evaluate the cell, And any type of cell will return string value
String cellValueStr = objDefaultFormat.formatCellValue(cellValue,objFormulaEvaluator);
}
I would like to give one additional answer, while the other ones will suffice in most cases.
I wanted to write a string over multiple lines, but its contents needed to be single-line.
sql=" \
SELECT c1, c2 \
from Table1, ${TABLE2} \
where ... \
"
I am sorry if this if a bit off-topic (I did not need this for SQL). However, this post comes up among the first results when searching for multi-line shell variables and an additional answer seemed appropriate.
You shoud use the Arrays.sort function. The containing classes should implement Comparable.
I got this error when I did a Response.Redirect
after a successful login of the user.
I fixed it by doing a FormsAuthentication.RedirectFromLoginPage
instead.
I had a similar problem and solved it by creating a symbolic link to the package in the working directory:
ln -s ../../../my_package my_package
and then import it as usual:
import my_package
I know this is more like a "Linux" solution rather than a "Python" solution. but it's a valid approach nonetheless.
If you are counting letters, the above solution will fail for some unicode symbols. For example for these 5 characters sample.length() will return 6 instead of 5:
String sample = "\u760c\u0444\u03b3\u03b5\ud800\udf45"; // ???e
The codePointCount function was introduced in Java 1.5 and I understand gives better results for glyphs etc
sample.codePointCount(0, sample.length()) // returns 5
http://globalizer.wordpress.com/2007/01/16/utf-8-and-string-length-limitations/
Try trimming the string to make sure there is no extra white space:
Cursor c = db.rawQuery("SELECT * FROM tbl1 WHERE TRIM(name) = '"+name.trim()+"'", null);
Also use c.moveToFirst()
like @thinksteep mentioned.
This is a complete code for select statements.
SQLiteDatabase db = this.getReadableDatabase();
Cursor c = db.rawQuery("SELECT column1,column2,column3 FROM table ", null);
if (c.moveToFirst()){
do {
// Passing values
String column1 = c.getString(0);
String column2 = c.getString(1);
String column3 = c.getString(2);
// Do something Here with values
} while(c.moveToNext());
}
c.close();
db.close();
Go to mirror.olnevhost.net/pub/apache/maven/binaries/ and check what is the latest tar.gz file
Supposing it is e.g. apache-maven-3.2.1-bin.tar.gz, from the command line; you should be able to simply do:
wget http://mirror.olnevhost.net/pub/apache/maven/binaries/apache-maven-3.2.1-bin.tar.gz
And then proceed to install it.
UPDATE: Adding complete instructions (copied from the comment below)
run the following to extract the tar:
tar xvf apache-maven-3.2.1-bin.tar.gz
Next add the env varibles such as
export M2_HOME=/usr/local/apache-maven/apache-maven-3.2.1
export M2=$M2_HOME/bin
export PATH=$M2:$PATH
Verify
mvn -version
If you're using Debian's Testing version, called 'wheezy', then you may have been bitten by the move to multiarch. More about Debian's multiarch here: http://wiki.debian.org/Multiarch
Basically, what is happening is various architecture specific libraries are being moved from traditional places in the file system to new architecture specific places. This is why /usr/bin/ld
is confused.
You will find crt1.o in both /usr/lib64/
and /usr/lib/i386-linux-gnu/
now and you'll need to tell your toolchain about that. Here is some documentation on how to do that; http://wiki.debian.org/Multiarch/LibraryPathOverview
Note that merely creating a symlink will only give you one architecture and you'd be essentially disabling multiarch. While this may be what you want it might not be the optimal solution.
Usually killall node
command fixes mine.
From @Ben Bolker:
[T]his has nothing specifically to do with dplyr::filter()
From @Marat Talipov:
[A]ny comparison with NA, including NA==NA, will return NA
From a related answer by @farnsy:
The == operator does not treat NA's as you would expect it to.
Think of NA as meaning "I don't know what's there". The correct answer to 3 > NA is obviously NA because we don't know if the missing value is larger than 3 or not. Well, it's the same for NA == NA. They are both missing values but the true values could be quite different, so the correct answer is "I don't know."
R doesn't know what you are doing in your analysis, so instead of potentially introducing bugs that would later end up being published an embarrassing you, it doesn't allow comparison operators to think NA is a value.
I've spent more time solving this error that I care to admit.
The order of authentication configuration in pg_hba.conf is relevant in your case I think. The default configuration file includes several lines in a vanilla install. These defaults can match the conditions of your authentication attempts resulting in a failure to authenticate. It fails regardless of additional configuration added at the end of the .conf file.
To check which line of configuration is use make sure to look at the default log file for messages. You might see something like this
LOG: could not connect to Ident server at address "127.0.0.1", port 113: Connection refused
FATAL: Ident authentication failed for user "acme"
DETAIL: Connection matched pg_hba.conf line 82: "host all all 127.0.0.1/32 ident"
It turns out this default line is causing the rejection.
host all all 127.0.0.1/32 ident
try commenting it out.
Something like this perhaps?
x<-rnorm(100000,mean=10, sd=2)
hist(x,breaks=150,xlim=c(0,20),freq=FALSE)
abline(v=10, lwd=5)
abline(v=c(4,6,8,12,14,16), lwd=3,lty=3)
Note that if you want to comment out a single line of printing erb you should do like this
<%#= ["Buck", "Papandreou"].join(" you ") %>
All the answers here suggest to use ipairs but beware, it does not work all the time.
t = {[2] = 44, [4]=77, [6]=88}
--This for loop prints the table
for key,value in next,t,nil do
print(key,value)
end
--This one does not print the table
for key,value in ipairs(t) do
print(key,value)
end
Initializing a vector having struct, class or Union can be done this way
std::vector<SomeStruct> someStructVect(length);
memset(someStructVect.data(), 0, sizeof(SomeStruct)*length);
To make this 'permanent', in my.cnf
:
[client]
default-character-set=utf8
[mysqld]
character-set-server = utf8
To check, go to the client and show some variables:
SHOW VARIABLES LIKE 'character_set%';
Verify that they're all utf8
, except ..._filesystem
, which should be binary
and ..._dir
, that points somewhere in the MySQL installation.
You could try running the "mvn site" command and see what transitive dependencies you have, and then resolve potential conflicts (by ommitting an implicit dependency somewhere). Just a guess (it's a bit difficult to know what the problem could be without seeing your pom info)...
First navigate to below location and open it in a text editor
<TOMCAT_HOME>/conf/tomcat-users.xml
For tomcat 7, Add the following xml code somewhere between <tomcat-users>
I find the following solution.
<role rolename="manager-gui"/>
<user username="username" password="password" roles="manager-gui"/>
Now restart the tomcat server.
You can make <button>
tag to do action like this:
<a href="http://www.google.com/">
<button>Visit Google</button>
</a>
or:
<a href="http://www.google.com/">
<input type="button" value="Visit Google" />
</a>
It's simple and no javascript required!
NOTE:
This approach is not valid from HTML structure. But, it works on many modern browser. See following reference :
You cannot just put in a function to pause Javascript unfortunately.
You have to use setTimeout()
Example:
function startTimer () {
timer.start();
setTimeout(stopTimer,5000);
}
function stopTimer () {
timer.stop();
}
EDIT:
For your user generated countdown, it is just as simple.
HTML:
<input type="number" id="delay" min="1" max="5">
JS:
var delayInSeconds = parseInt(delay.value);
var delayInMilliseconds = delayInSeconds*1000;
function startTimer () {
timer.start();
setTimeout(stopTimer,delayInMilliseconds);
}
function stopTimer () {
timer.stop;
}
Now you simply need to add a trigger for startTimer()
, such as onchange
.
You can use any of these commands, this will help you to give a password also.
cmd = subprocess.run(["sshpass -p 'password' ssh -o StrictHostKeyChecking=no -o UserKnownHostsFile=/dev/null [email protected] ps | grep minicom"], shell=True, stdout=subprocess.PIPE, stderr=subprocess.STDOUT)
print(cmd.stdout)
OR
cmd = subprocess.getoutput("sshpass -p 'password' ssh -o StrictHostKeyChecking=no -o UserKnownHostsFile=/dev/null [email protected] ps | grep minicom")
print(cmd)
Check your migration file, maybe you are using Schema::table, like this:
Schema::table('table_name', function ($table) {
// ...
});
If you want to create a new table you must use Schema::create:
Schema::create('table_name', function ($table) {
// ...
});
The answer here is very simple:
You're already containing it in double quotes, so there's no need to escape it with \
.
If you want to escape single quotes in a single quote string:
var string = 'this isn\'t a double quoted string';
var string = "this isn\"t a single quoted string";
// ^ ^ same types, hence we need to escape it with a backslash
or if you want to escape \'
, you can escape the bashslash to \\
and the quote to \'
like so:
var string = 'this isn\\\'t a double quoted string';
// vvvv
// \ ' (the escaped characters)
However, if you contain the string with a different quote type, you don't need to escape:
var string = 'this isn"t a double quoted string';
var string = "this isn't a single quoted string";
// ^ ^ different types, hence we don't need escaping
sumr
is implemented in terms of foldRight
:
final def sumr(implicit A: Monoid[A]): A = F.foldRight(self, A.zero)(A.append)
foldRight
is not always tail recursive, so you can overflow the stack if the collection is too long. See Why foldRight and reduceRight are NOT tail recursive? for some more discussion of when this is or isn't true.
Maybe this code helps:
var chunk_size = 10;_x000D_
var arr = [1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16,17];_x000D_
var groups = arr.map( function(e,i){ _x000D_
return i%chunk_size===0 ? arr.slice(i,i+chunk_size) : null; _x000D_
}).filter(function(e){ return e; });_x000D_
console.log({arr, groups})
_x000D_
This error is because of multiple project having the offending resources.
Try out adding the dependencies projects other way around. (like in pom.xml or external depandancies)
After some search for a solution, it turns out the -dev package is needed, not just ruby1.8. So if you have ruby1.9.1 doing
sudo apt-get install ruby1.9.1-dev
or to install generic ruby version, use (as per @lamplightdev comment):
sudo apt-get install ruby-dev
should fix it.
Try to locate mkmf to see if the file is actually there.
If you want to compare with empty string without worrying about null values you can do the following.
if ("".equals(text))
Ultimately you should do what what you believe is clearest. Most programmers assume "" means empty string, not a string someone forgot to put anything into.
If you think there is a performance advantage, you should test it. If you don't think its worth testing for yourself, its a good indication it really isn't worth it.
It sounds like to you try to solve a problem which was solved when the language was designed more than 15 years ago.
do it like this, without too the extra slashes
root="/home"
os.path.join(root,"build","test","sandboxes",todaystr,"new_sandbox")
There are some good answers already with explanations of why the mixture of the non-static Context
method getText()
can't be used with your static final String
.
A good question to ask is: why do you want to do this? You are attempting to load a String
from your strings
resource, and populate its value into a public static
field. I assume that this is so that some of your other classes can access it? If so, there is no need to do this. Instead pass a Context
into your other classes and call context.getText(R.string.TTT)
from within them.
public class NonActivity {
public static void doStuff(Context context) {
String TTT = context.getText(R.string.TTT);
...
}
}
And to call this from your Activity
:
NonActivity.doStuff(this);
This will allow you to access your String
resource without needing to use a public static
field.
This works:
$a = array(1 => 1, 2 => 2, 3 => 3);
$b = array(4 => 4, 5 => 5, 6 => 6);
$c = $a + $b;
print_r($c);
From your log I understood that you have 12 input files as there are 12 local maps generated. Rack Local maps are spawned for the same file if some of the blocks of that file are in some other data node. How many data nodes you have?
Above answers did not work for me.
Adding the attribute preserveAspectRatio="xMidYMin"
to the <svg>
tag did the trick though. The viewBox
attribute needs to be specified for this to work as well.
Source: Mozilla developer network
I got stumped here a bit. Wanted to package some resource files into a wheel file and access them. Did the packaging using manifest file, but pip install was not installing it unless it was a sub directory. Hoping these sceen shots will help
+-- cnn_client
¦ +-- image_preprocessor.py
¦ +-- __init__.py
¦ +-- resources
¦ ¦ +-- mscoco_complete_label_map.pbtxt
¦ ¦ +-- retinanet_complete_label_map.pbtxt
¦ ¦ +-- retinanet_label_map.py
¦ +-- tf_client.py
MANIFEST.in
recursive-include cnn_client/resources *
Created a weel using standard setup.py . pip installed the wheel file. After installation checked if resources are installed. They are
ls /usr/local/lib/python2.7/dist-packages/cnn_client/resources
mscoco_complete_label_map.pbtxt
retinanet_complete_label_map.pbtxt
retinanet_label_map.py
In tfclient.py to access these files. from
templates_dir = os.path.join(os.path.dirname(__file__), 'resources')
file_path = os.path.join(templates_dir, \
'mscoco_complete_label_map.pbtxt')
s = open(file_path, 'r').read()
And it works.
Yes you can create events on objects, here is an example;
public class Foo
{
public delegate void MyEvent(object sender, object param);
event MyEvent OnMyEvent;
public Foo()
{
this.OnMyEvent += new MyEvent(Foo_OnMyEvent);
}
void Foo_OnMyEvent(object sender, object param)
{
if (this.OnMyEvent != null)
{
//do something
}
}
void RaiseEvent()
{
object param = new object();
this.OnMyEvent(this,param);
}
}
You can do it by yourself - it's now so difficult. Here is an example from my project: https://github.com/AlShevelev/WizardCamera
Let start from settings (attrs.xml).
<?xml version="1.0" encoding="utf-8"?>
<resources>
<declare-styleable name="ExpositionBar">
<attr name="button_icon" format="reference" />
<attr name="button_icon_size" format="dimension" />
<attr name="stroke_width" format="dimension" />
<attr name="stroke_color" format="color" />
<attr name="button_color" format="color" />
<attr name="button_color_pressed" format="color" />
<attr name="min_value" format="float" />
<attr name="max_value" format="float" />
</declare-styleable>
</resources>
Here is a couple of utility functions:
fun <T: Comparable<T>>T.fitInRange(range: Range<T>): T =
when {
this < range.lower -> range.lower
this > range.upper -> range.upper
else -> this
}
fun Float.reduceToRange(rangeFrom: Range<Float>, rangeTo: Range<Float>): Float =
when {
this == rangeFrom.lower -> rangeTo.lower
this == rangeFrom.upper -> rangeTo.upper
else -> {
val placeInRange = (this - rangeFrom.lower) / (rangeFrom.upper - rangeFrom.lower)
((rangeTo.upper - rangeTo.lower) * placeInRange) + rangeTo.lower
}
}
And at last, but not least - a class for vertical seek bar:
class ExpositionBar
@JvmOverloads
constructor(
context: Context,
attrs: AttributeSet? = null,
defStyleAttr: Int = 0
) : View(context, attrs, defStyleAttr) {
private val drawingRect = RectF(0f, 0f, 0f, 0f)
private val drawingPaint = Paint(Paint.ANTI_ALIAS_FLAG)
private val strokeWidth: Float
@ColorInt
private val strokeColor: Int
@ColorInt
private val buttonFillColor: Int
@ColorInt
private val buttonFillColorPressed: Int
private val icon: VectorDrawable
private val valuesRange: Range<Float>
private var centerX = 0f
private var minY = 0f
private var maxY = 0f
private var buttonCenterY = 0f
private var buttonRadiusExt = 0f
private var buttonRadiusInt = 0f
private var buttonMinY = 0f
private var buttonMaxY = 0f
private var buttonCenterBoundsRange = Range(0f, 0f)
private var iconTranslationX = 0f
private var iconTranslationY = 0f
private var isInDragMode = false
private var onValueChangeListener: ((Float) -> Unit)? = null
private var oldOutputValue = Float.MIN_VALUE
init {
val typedArray = context.obtainStyledAttributes(attrs, R.styleable.ExpositionBar)
icon = typedArray.getDrawable(R.styleable.ExpositionBar_button_icon) as VectorDrawable
val iconSize = typedArray.getDimensionPixelSize(R.styleable.ExpositionBar_button_icon_size, 0)
icon.setBounds(0, 0, iconSize, iconSize)
strokeWidth = typedArray.getDimensionPixelSize(R.styleable.ExpositionBar_stroke_width, 0).toFloat()
drawingPaint.strokeWidth = strokeWidth
strokeColor = typedArray.getColor(R.styleable.ExpositionBar_stroke_color, Color.WHITE)
buttonFillColor = typedArray.getColor(R.styleable.ExpositionBar_button_color, Color.BLACK)
buttonFillColorPressed = typedArray.getColor(R.styleable.ExpositionBar_button_color_pressed, Color.BLUE)
val minValue = typedArray.getFloat(R.styleable.ExpositionBar_min_value, 0f)
val maxValue = typedArray.getFloat(R.styleable.ExpositionBar_max_value, 0f)
valuesRange = Range(minValue, maxValue)
typedArray.recycle()
}
override fun onSizeChanged(w: Int, h: Int, oldw: Int, oldh: Int) {
super.onSizeChanged(w, h, oldw, oldh)
drawingRect.right = width.toFloat()
drawingRect.bottom = height.toFloat()
buttonCenterY = drawingRect.centerY()
recalculateDrawingValues()
}
override fun onDraw(canvas: Canvas) {
drawingPaint.color = strokeColor
drawingPaint.style = Paint.Style.STROKE
// Draw the center line
canvas.drawLine(centerX, minY, centerX, buttonMinY, drawingPaint)
canvas.drawLine(centerX, buttonMaxY, centerX, maxY, drawingPaint)
// Draw the button
canvas.drawCircle(centerX, buttonCenterY, buttonRadiusExt, drawingPaint)
drawingPaint.style = Paint.Style.FILL
drawingPaint.color = if(isInDragMode) buttonFillColorPressed else buttonFillColor
canvas.drawCircle(centerX, buttonCenterY, buttonRadiusInt, drawingPaint)
// Draw button icon
canvas.translate(iconTranslationX, iconTranslationY)
icon.draw(canvas)
canvas.translate(-iconTranslationX, -iconTranslationY)
}
@SuppressLint("ClickableViewAccessibility")
override fun onTouchEvent(event: MotionEvent): Boolean {
if(!isEnabled) {
return false
}
when(event.actionMasked) {
MotionEvent.ACTION_DOWN -> {
if(isButtonHit(event.y)){
isInDragMode = true
invalidate()
}
}
MotionEvent.ACTION_MOVE -> {
if(isInDragMode) {
buttonCenterY = event.y.fitInRange(buttonCenterBoundsRange)
recalculateDrawingValues()
invalidate()
val outputValue = buttonCenterY.reduceToRange(buttonCenterBoundsRange, valuesRange)
if (outputValue != oldOutputValue) {
onValueChangeListener?.invoke(outputValue)
oldOutputValue = outputValue
}
}
}
MotionEvent.ACTION_UP,
MotionEvent.ACTION_CANCEL -> {
isInDragMode = false
invalidate()
}
}
return true
}
fun setOnValueChangeListener(listener: ((Float) -> Unit)?) {
onValueChangeListener = listener
}
private fun recalculateDrawingValues() {
centerX = drawingRect.left + drawingRect.width()/2
minY = drawingRect.top
maxY = drawingRect.bottom
buttonRadiusExt = drawingRect.width() / 2 - strokeWidth / 2
buttonRadiusInt = buttonRadiusExt - strokeWidth / 2
buttonMinY = buttonCenterY - buttonRadiusExt
buttonMaxY = buttonCenterY + buttonRadiusExt
val buttonCenterMinY = minY + buttonRadiusExt + strokeWidth / 2
val buttonCenterMaxY = maxY - buttonRadiusExt - strokeWidth / 2
buttonCenterBoundsRange = Range(buttonCenterMinY, buttonCenterMaxY)
iconTranslationX = centerX - icon.bounds.width() / 2
iconTranslationY = buttonCenterY - icon.bounds.height() / 2
}
private fun isButtonHit(y: Float): Boolean {
return y >= buttonMinY && y <= buttonMaxY
}
}
You can use it as shown here:
<com.shevelev.wizard_camera.main_activity.view.widgets.ExpositionBar
android:id="@+id/expositionBar"
android:layout_width="@dimen/mainButtonSize"
android:layout_height="300dp"
android:layout_gravity="end|center_vertical"
android:layout_marginEnd="@dimen/marginNormal"
android:layout_marginBottom="26dp"
app:button_icon = "@drawable/ic_brightness"
app:button_icon_size = "@dimen/toolButtonIconSize"
app:stroke_width = "@dimen/strokeWidthNormal"
app:stroke_color = "@color/mainButtonsForeground"
app:button_color = "@color/mainButtonsBackground"
app:button_color_pressed = "@color/mainButtonsBackgroundPressed"
app:min_value="-100"
app:max_value="100"
/>
Voila!
You need to put the last()
indexing on the nodelist result, rather than as part of the selection criteria. Try:
(//element[@name='D'])[last()]
I have test project A and B. Tests in Project A where discovered but the Discovery never stopped for B. I had to manually kill TestHost to make stop.
I did a lot of things this page describes even to the point that I'm unsure as to wheter this was the solution.
Now it worked and the thing I did was to open the Solution and NOT have the Test Explorer up. Instead I just checked the Output window for Tests and I could see the discovery process end and the number of test where equal to A+B. After this, I opened the Test Explorer and then both A and B where present. So:
Uninstall and Install the latest xUnit stuff correctly. Delete the %temp% as mentioned above, Add NuGet Package "Microsoft.TestPlatform.TestHost" Add NuGet Package "Microsoft.NET.Test.Sdk", restart but only check the Tests Output. If it works u'll see
Here is the best solution for this. (ANGULAR All Version)
Addressing solution: To set a default value for @Input variable. If no value passed to that input variable then It will take the default value.
I have provided solution for this kind of similar question. You can find the full solution from here
export class CarComponent implements OnInit {
private _defaultCar: car = {
// default isCar is true
isCar: true,
// default wheels will be 4
wheels: 4
};
@Input() newCar: car = {};
constructor() {}
ngOnInit(): void {
// this will concate both the objects and the object declared later (ie.. ...this.newCar )
// will overwrite the default value. ONLY AND ONLY IF DEFAULT VALUE IS PRESENT
this.newCar = { ...this._defaultCar, ...this.newCar };
// console.log(this.newCar);
}
}
Adding on, you can turn off the creation of vshost files for your Release build configuration and have it enabled for Debug.
Steps
Reference
Excerpt from MSDN How to: Disable the Hosting Process
Calls to certain APIs can be affected when the hosting process is enabled. In these cases, it is necessary to disable the hosting process to return the correct results.
To disable the hosting process
When the hosting process is disabled, several debugging features are unavailable or experience decreased performance. For more information, see Debugging and the Hosting Process.
In general, when the hosting process is disabled:
- The time needed to begin debugging .NET Framework applications increases.
- Design-time expression evaluation is unavailable.
- Partial trust debugging is unavailable.
I'm one of the noob too when I encountered something like this. So... I set the passwords using the command security page gave me: /opt/lampp/lampp security Then I used password xyz for all the passwords... Then when I go to site/, it ask for a basic authentication. But when I tried root//xyz, it does not allow me login. So, after some digging, it turns out the xyz password was set for a default user named 'lampp'. When I tried to login using lampp//xyz, it worked like a charm.
The issue is that they made an assumption that everyone knows to use lampp//rootpw as their login o.O And... that is a basic auth for the directory! not pw for phpmyadmin or pw for mysql...
JSONObject jsonObject =new JSONObject(jsonStr);
JSONArray jsonArray = jsonObject.getJSONArray("data");
for(int i=0;i<jsonArray.length;i++){
JSONObject json = jsonArray.getJSONObject(i);
String id = json.getString("id");
String name=json.getString("name");
JSONArray ingArray = json.getJSONArray("Ingredients") // here you are going to get ingredients
for(int j=0;j<ingArray.length;j++){
JSONObject ingredObject= ingArray.getJSONObject(j);
String ingName = ingredObject.getString("name");//so you are going to get ingredient name
Log.e("name",ingName); // you will get
}
}
git remote add origin <remote_repo_url>
git push --all origin
If you want to set all of your branches to automatically use this remote repo when you use git pull
, add --set-upstream
to the push:
git push --all --set-upstream origin
The best example is this one, No hiding, No jQuery, It's completely pure CSS
http://css-tricks.com/snippets/css/custom-file-input-styling-webkitblink/
.custom-file-input::-webkit-file-upload-button {_x000D_
visibility: hidden;_x000D_
}_x000D_
_x000D_
.custom-file-input::before {_x000D_
content: 'Select some files';_x000D_
display: inline-block;_x000D_
background: -webkit-linear-gradient(top, #f9f9f9, #e3e3e3);_x000D_
border: 1px solid #999;_x000D_
border-radius: 3px;_x000D_
padding: 5px 8px;_x000D_
outline: none;_x000D_
white-space: nowrap;_x000D_
-webkit-user-select: none;_x000D_
cursor: pointer;_x000D_
text-shadow: 1px 1px #fff;_x000D_
font-weight: 700;_x000D_
font-size: 10pt;_x000D_
}_x000D_
_x000D_
.custom-file-input:hover::before {_x000D_
border-color: black;_x000D_
}_x000D_
_x000D_
.custom-file-input:active::before {_x000D_
background: -webkit-linear-gradient(top, #e3e3e3, #f9f9f9);_x000D_
}
_x000D_
<input type="file" class="custom-file-input">
_x000D_
Say the list is like below
iterator = [None, 1, 2, 0, '', None, False, {}, (), []]
This will return only those items whose bool(item) is True
print filter(lambda item: item, iterator)
# [1, 2]
This is equivalent to
print [item for item in iterator if item]
To just filter None:
print filter(lambda item: item is not None, iterator)
# [1, 2, 0, '', False, {}, (), []]
Equivalent to:
print [item for item in iterator if item is not None]
To get all the items that evaluate to False
print filter(lambda item: not item, iterator)
# Will print [None, '', 0, None, False, {}, (), []]