It seems like it doesn't work without 32 bit JDK. Just install it and be happy...
I struggled with you same issue for about 3 hours. As of Compass 1.0.alpha19
, the requirement is for the rvm version 1.9.3.
There are several uncollected posts, however what worked for me was the following:
sudo gem uninstall sass
sudo gem uninstall compass
rvm install ruby-1.9.3-p448
sudo gem install sass --pre
sudo gem install compass --pre
and that did it. Hope it works for you as well!
(Updated - Thanks to the people who commented)
Suppose you have a table named test1
, to which you want to add an auto-incrementing, primary-key id
(surrogate) column. The following command should be sufficient in recent versions of PostgreSQL:
ALTER TABLE test1 ADD COLUMN id SERIAL PRIMARY KEY;
In old versions of PostgreSQL (prior to 8.x?) you had to do all the dirty work. The following sequence of commands should do the trick:
ALTER TABLE test1 ADD COLUMN id INTEGER;
CREATE SEQUENCE test_id_seq OWNED BY test1.id;
ALTER TABLE test ALTER COLUMN id SET DEFAULT nextval('test_id_seq');
UPDATE test1 SET id = nextval('test_id_seq');
Again, in recent versions of Postgres this is roughly equivalent to the single command above.
Properties in your object are value types and you can use the shallow copy in such situation like that:
obj myobj2 = (obj)myobj.MemberwiseClone();
But in other situations, like if any members are reference types, then you need Deep Copy. You can get a deep copy of an object using Serialization
and Deserialization
techniques with the help of BinaryFormatter
class:
public static T DeepCopy<T>(T other)
{
using (MemoryStream ms = new MemoryStream())
{
BinaryFormatter formatter = new BinaryFormatter();
formatter.Context = new StreamingContext(StreamingContextStates.Clone);
formatter.Serialize(ms, other);
ms.Position = 0;
return (T)formatter.Deserialize(ms);
}
}
The purpose of setting StreamingContext
:
We can introduce special serialization and deserialization logic to our code with the help of either implementing ISerializable
interface or using built-in attributes like OnDeserialized
, OnDeserializing
, OnSerializing
, OnSerialized
. In all cases StreamingContext
will be passed as an argument to the methods(and to the special constructor in case of ISerializable
interface). With setting ContextState
to Clone
, we are just giving hint to that method about the purpose of the serialization.
Additional Info: (you can also read this article from MSDN)
Shallow copying is creating a new object and then copying the nonstatic fields of the current object to the new object. If a field is a value type, a bit-by-bit copy of the field is performed; for a reference type, the reference is copied but the referred object is not; therefore the original object and its clone refer to the same object.
Deep copy is creating a new object and then copying the nonstatic fields of the current object to the new object. If a field is a value type, a bit-by-bit copy of the field is performed. If a field is a reference type, a new copy of the referred object is performed.
I've been using Chilkat's native SFTP library ( http://www.chilkatsoft.com/ssh-sftp-component.asp ) for a couple of months now and it's working great. Been using it in a nightly job to download large files and do private key authentication. Only problem that I had was getting the 64bit version to work on windows server 2008, I needed to install vcredist_x64.exe ( http://www.microsoft.com/download/en/details.aspx?id=14632 ) on my server.
git remote add
name urlgit push
name branchExample:
git remote add origin [email protected]:foo/bar.git
git push origin master
See the docs for git push
-- you can set a remote as the default remote for a given branch; if you don't, the name origin
is special. Just git push
alone will do the same as git push origin
thisbranch (for whatever branch you're on).
Since none of the solutions seem to be working for you so far, try this one:
ini_set('display_errors', 1);
http://www.php.net/manual/en/errorfunc.configuration.php#ini.display-errors
This explicitly tells PHP to display the errors. Some environments can have this disabled by default.
This is what my environment settings look like in index.php
:
/*
*---------------------------------------------------------------
* APPLICATION ENVIRONMENT
*---------------------------------------------------------------
*/
define('ENVIRONMENT', 'development');
/*
*---------------------------------------------------------------
* ERROR REPORTING
*---------------------------------------------------------------
*/
if (defined('ENVIRONMENT'))
{
switch (ENVIRONMENT)
{
case 'development':
// Report all errors
error_reporting(E_ALL);
// Display errors in output
ini_set('display_errors', 1);
break;
case 'testing':
case 'production':
// Report all errors except E_NOTICE
// This is the default value set in php.ini
error_reporting(E_ALL ^ E_NOTICE);
// Don't display errors (they can still be logged)
ini_set('display_errors', 0);
break;
default:
exit('The application environment is not set correctly.');
}
}
Just add @pause
at the end.
Example:
@echo off
ipconfig
@pause
Or you can also use:
cmd /k ipconfig
<!doctype html>
<html>
<head>
## Heading ##
<meta charset="utf-8">
<title>
Untitled Document
</title>
</head>
<style>
li {
display: block;
width: auto;
}
ul li> ul li {
float: left;
}
ul li> ul {
display: none;
position: absolute;
}
li:hover > ul {
display: block;
margin-left: 148px;
display: inline;
margin-top: -52px;
}
a {
background: #f2f2ea;
display: block;
/*padding:10px 5px;
*/
width: 186px;
height: 50px;
border: solid 2px #c2c2c2;
border-bottom: none;
text-decoration: none;
}
li:hover >a {
background: #ffffff;
}
ul li>li:hover {
margin: 12px auto 0px auto;
padding-top: 10px;
width: 0;
height: 0;
border-top: 8px solid #c2c2c2;
}
.bottom {
border-bottom: solid 2px #c2c2c2;
}
.sub_m {
border-bottom: solid 2px #c2c2c2;
}
.sub_m2 {
border-left: none;
border-right: none;
border-bottom: solid 2px #c2c2c2;
}
li.selected {
background: #6D0070;
}
#menu_content {
/*float:left;
*/
}
.ca-main {
padding-top: 18px;
margin: 0;
color: #34495e;
font-size: 18px;
}
.ca-sub {
padding-top: 18px;
margin: 0px 20px;
color: #34495e;
font-size: 18px;
}
.submenu a {
width: auto;
}
h2 {
text-align: center;
}
</style>
<body>
<ul>
<li>
<a href="#">
<div id="menu_content">
<h2 class="ca-main">
Item 1
</h2>
</div>
</a>
<ul class="submenu" >
<li>
<a href="#" class="sub_m">
<div id="menu_content">
<h2 class="ca-sub">
Item 1_1
</h2>
</div>
</a>
</li>
<li>
<a href="#" class="sub_m2">
<div id="menu_content">
<h2 class="ca-sub">
Item 1_2
</h2>
</div>
</a>
</li>
<li >
<a href="#" class="sub_m">
<div id="menu_content">
<h2 class="ca-sub">
Item 1_3
</h2>
</div>
</a>
</li>
</ul>
</li>
<li>
<a href="#">
<div id="menu_content">
<h2 class="ca-main">
Item 2
</h2>
</div>
</a>
</li>
<li>
<a href="#">
<div id="menu_content">
<h2 class="ca-main">
Item 3
</h2>
</div>
</a>
</li>
<li>
<a href="#" class="bottom">
<div id="menu_content">
<h2 class="ca-main">
Item 4
</h2>
</div>
</a>
</li>
</ul>
</body>
</html>
In WPF, you can easily do it in this way:
this.button.RaiseEvent(new RoutedEventArgs(Button.ClickEvent));
Strings are a great example of uses of double pointers. The string itself is a pointer, so any time you need to point to a string, you'll need a double pointer.
A jQuery solution would be something like:
$(function () {
$('input').blur();
});
There are several ways to intercept the initialization process in Spring. If you have to initialize all beans and autowire/inject them there are at least two ways that I know of that will ensure this. I have only testet the second one but I belive both work the same.
If you are using @Bean you can reference by initMethod, like this.
@Configuration
public class BeanConfiguration {
@Bean(initMethod="init")
public BeanA beanA() {
return new BeanA();
}
}
public class BeanA {
// method to be initialized after context is ready
public void init() {
}
}
If you are using @Component you can annotate with @EventListener like this.
@Component
public class BeanB {
@EventListener
public void onApplicationEvent(ContextRefreshedEvent event) {
}
}
In my case I have a legacy system where I am now taking use of IoC/DI where Spring Boot is the choosen framework. The old system brings many circular dependencies to the table and I therefore must use setter-dependency a lot. That gave me some headaches since I could not trust @PostConstruct since autowiring/injection by setter was not yet done. The order is constructor, @PostConstruct then autowired setters. I solved it with @EventListener annotation which wil run last and at the "same" time for all beans. The example shows implementation of InitializingBean aswell.
I have two classes (@Component) with dependency to each other. The classes looks the same for the purpose of this example displaying only one of them.
@Component
public class BeanA implements InitializingBean {
private BeanB beanB;
public BeanA() {
log.debug("Created...");
}
@PostConstruct
private void postConstruct() {
log.debug("@PostConstruct");
}
@Autowired
public void setBeanB(BeanB beanB) {
log.debug("@Autowired beanB");
this.beanB = beanB;
}
@Override
public void afterPropertiesSet() throws Exception {
log.debug("afterPropertiesSet()");
}
@EventListener
public void onApplicationEvent(ContextRefreshedEvent event) {
log.debug("@EventListener");
}
}
This is the log output showing the order of the calls when the container starts.
2018-11-30 18:29:30.504 DEBUG 3624 --- [ main] com.example.demo.BeanA : Created...
2018-11-30 18:29:30.509 DEBUG 3624 --- [ main] com.example.demo.BeanB : Created...
2018-11-30 18:29:30.517 DEBUG 3624 --- [ main] com.example.demo.BeanB : @Autowired beanA
2018-11-30 18:29:30.518 DEBUG 3624 --- [ main] com.example.demo.BeanB : @PostConstruct
2018-11-30 18:29:30.518 DEBUG 3624 --- [ main] com.example.demo.BeanB : afterPropertiesSet()
2018-11-30 18:29:30.518 DEBUG 3624 --- [ main] com.example.demo.BeanA : @Autowired beanB
2018-11-30 18:29:30.518 DEBUG 3624 --- [ main] com.example.demo.BeanA : @PostConstruct
2018-11-30 18:29:30.518 DEBUG 3624 --- [ main] com.example.demo.BeanA : afterPropertiesSet()
2018-11-30 18:29:30.607 DEBUG 3624 --- [ main] com.example.demo.BeanA : @EventListener
2018-11-30 18:29:30.607 DEBUG 3624 --- [ main] com.example.demo.BeanB : @EventListener
As you can see @EventListener is run last after everything is ready and configured.
I realize this is a very old question, but hopefully this will help someone else out as I came upon this post looking for the same thing. I had a similar issue, just that my metadata was a Guid and int. The solution is the same though. You can just make the needed metadata part of the URL.
POST accepting method in your "Controller" class:
public Task<HttpResponseMessage> PostFile(string name, float latitude, float longitude)
{
//See http://stackoverflow.com/a/10327789/431906 for how to accept a file
return null;
}
Then in whatever you're registering routes, WebApiConfig.Register(HttpConfiguration config) for me in this case.
config.Routes.MapHttpRoute(
name: "FooController",
routeTemplate: "api/{controller}/{name}/{latitude}/{longitude}",
defaults: new { }
);
I have written a shell script which will read data from properties file and then run mysql script on shell script. sharing this may help to others.
#!/bin/bash
PROPERTY_FILE=filename.properties
function getProperty {
PROP_KEY=$1
PROP_VALUE=`cat $PROPERTY_FILE | grep "$PROP_KEY" | cut -d'=' -f2`
echo $PROP_VALUE
}
echo "# Reading property from $PROPERTY_FILE"
DB_USER=$(getProperty "db.username")
DB_PASS=$(getProperty "db.password")
ROOT_LOC=$(getProperty "root.location")
echo $DB_USER
echo $DB_PASS
echo $ROOT_LOC
echo "Writing on DB ... "
mysql -u$DB_USER -p$DB_PASS dbname<<EOFMYSQL
update tablename set tablename.value_ = "$ROOT_LOC" where tablename.name_="Root directory location";
EOFMYSQL
echo "Writing root location($ROOT_LOC) is done ... "
counter=`mysql -u${DB_USER} -p${DB_PASS} dbname -e "select count(*) from tablename where tablename.name_='Root directory location' and tablename.value_ = '$ROOT_LOC';" | grep -v "count"`;
if [ "$counter" = "1" ]
then
echo "ROOT location updated"
fi
You can hide the status bar all together. So your app will be full-screen. I think that's the best you will get.
UIStatusBarStyleNone
or set in the target settings.
With Angular 5 the RxJS import is improved.
Instead of
import 'rxjs/add/operator/map';
We can now
import { map } from 'rxjs/operators';
changing the Binding Type from wsHttpbinding to basichttp binding in the endpoint tag and from wsHttpbinding to mexhttpbinginding in metadata endpoint tag helped to overcome the error. Thank you...
For MariaDB users (version >= 10.2.2) and MySQL (version >= 5.7), the simple solution is:
ALTER TABLE `table` ROW_FORMAT=DYNAMIC;
There is a nice explanation in Numpy docs: https://docs.scipy.org/doc/numpy-1.15.1/reference/generated/numpy.random.RandomState.html it refers to Mersenne Twister pseudo-random number generator. More details on the algorithm here: https://en.wikipedia.org/wiki/Mersenne_Twister
static void convertToBinary(int n)
{
Stack<int> stack = new Stack<int>();
stack.Push(n);
// step 1 : Push the element on the stack
while (n > 1)
{
n = n / 2;
stack.Push(n);
}
// step 2 : Pop the element and print the value
foreach(var val in stack)
{
Console.Write(val % 2);
}
}
What you are asking is thoroughly covered by Eric Lippert in his blog post Closing over the loop variable considered harmful and its sequel.
For me, the most convincing argument is that having new variable in each iteration would be inconsistent with for(;;)
style loop. Would you expect to have a new int i
in each iteration of for (int i = 0; i < 10; i++)
?
The most common problem with this behavior is making a closure over iteration variable and it has an easy workaround:
foreach (var s in strings)
{
var s_for_closure = s;
query = query.Where(i => i.Prop == s_for_closure); // access to modified closure
My blog post about this issue: Closure over foreach variable in C#.
While the accepted answer solved the OP's original problem, most people finding this question through a Google search are likely having an entirely different problem which just happens to throw the same no suitable HttpMessageConverter found exception.
What happens under the covers is that MappingJackson2HttpMessageConverter
swallows any exceptions that occur in its canRead()
method, which is supposed to auto-detect whether the payload is suitable for json decoding. The exception is replaced by a simple boolean return that basically communicates sorry, I don't know how to decode this message to the higher level APIs (RestClient
). Only after all other converters' canRead() methods return false, the no suitable HttpMessageConverter found exception is thrown by the higher-level API, totally obscuring the true problem.
For people who have not found the root cause (like you and me, but not the OP), the way to troubleshoot this problem is to place a debugger breakpoint on onMappingJackson2HttpMessageConverter.canRead()
, then enable a general breakpoint on any exception, and hit Continue. The next exception is the true root cause.
My specific error happened to be that one of the beans referenced an interface that was missing the proper deserialization annotations.
UPDATE FROM THE FUTURE
This has proven to be such a recurring issue across so many of my projects, that I've developed a more proactive solution. Whenever I have a need to process JSON exclusively (no XML or other formats), I now replace my RestTemplate
bean with an instance of the following:
public class JsonRestTemplate extends RestTemplate {
public JsonRestTemplate(
ClientHttpRequestFactory clientHttpRequestFactory) {
super(clientHttpRequestFactory);
// Force a sensible JSON mapper.
// Customize as needed for your project's definition of "sensible":
ObjectMapper objectMapper = new ObjectMapper()
.registerModule(new Jdk8Module())
.registerModule(new JavaTimeModule())
.configure(
SerializationFeature.WRITE_DATES_AS_TIMESTAMPS, false);
List<HttpMessageConverter<?>> messageConverters = new ArrayList<>();
MappingJackson2HttpMessageConverter jsonMessageConverter = new MappingJackson2HttpMessageConverter() {
public boolean canRead(java.lang.Class<?> clazz,
org.springframework.http.MediaType mediaType) {
return true;
}
public boolean canRead(java.lang.reflect.Type type,
java.lang.Class<?> contextClass,
org.springframework.http.MediaType mediaType) {
return true;
}
protected boolean canRead(
org.springframework.http.MediaType mediaType) {
return true;
}
};
jsonMessageConverter.setObjectMapper(objectMapper);
messageConverters.add(jsonMessageConverter);
super.setMessageConverters(messageConverters);
}
}
This customization makes the RestClient
incapable of understanding anything other than JSON. The upside is that any error messages that may occur will be much more explicit about what's wrong.
use a temporary scan.nextLine();
this will consume the \n character
isfar<-load("C:/Users/isfar.RData")
if(is.data.frame(isfar)){
names(isfar)
}
If isfar is a dataframe, this will print out the names of its columns.
I have created the Makefile project using cmake on Ubuntu 16.04.
When created the eclipse project for the Makefiles which cmake generated I created the new project like so:
File --> new --> Makefile project with existing code.
Only after couple of times doing that I have noticed that the default setting for the "Toolchain for indexer settings" is none. In my case I have changed it to Linux GCC and all the errors disappeared.
Hope it helps and let me know if it is not a legit solution.
Cheers,
Guy.
You can separate your commands using a semi colon:
cd /my_folder;rm *.jar;svn co path to repo;mvn compile package install
Was that what you mean?
In Angular 5 you can easily obtain and modify a copy of the urlTree by parsing the current url. This will include query params and fragments.
let urlTree = this.router.parseUrl(this.router.url);
urlTree.queryParams['newParamKey'] = 'newValue';
this.router.navigateByUrl(urlTree);
The "correct way" to modify a query parameter is probably with the createUrlTree like below which creates a new UrlTree from the current while letting us modify it using NavigationExtras.
import { Router } from '@angular/router';
constructor(private router: Router) { }
appendAQueryParam() {
const urlTree = this.router.createUrlTree([], {
queryParams: { newParamKey: 'newValue' },
queryParamsHandling: "merge",
preserveFragment: true });
this.router.navigateByUrl(urlTree);
}
In order to remove a query parameter this way you can set it to undefined
or null
.
I have work it like this,
/** Open another app.
* @param context current Context, like Activity, App, or Service
* @param packageName the full package name of the app to open
* @return true if likely successful, false if unsuccessful
*/
public static boolean openApp(Context context, String packageName) {
PackageManager manager = context.getPackageManager();
try {
Intent i = manager.getLaunchIntentForPackage(packageName);
if (i == null) {
return false;
//throw new ActivityNotFoundException();
}
i.addCategory(Intent.CATEGORY_LAUNCHER);
context.startActivity(i);
return true;
} catch (ActivityNotFoundException e) {
return false;
}
}
Example usage:
openApp(this, "com.google.android.maps.mytracks");
Hope it helps someone.
Aside from getting decode
and encode
backwards, I think part of the answer here is actually don't use the ascii
encoding. It's probably not what you want.
To begin with, think of str
like you would a plain text file. It's just a bunch of bytes with no encoding actually attached to it. How it's interpreted is up to whatever piece of code is reading it. If you don't know what this paragraph is talking about, go read Joel's The Absolute Minimum Every Software Developer Absolutely, Positively Must Know About Unicode and Character Sets right now before you go any further.
Naturally, we're all aware of the mess that created. The answer is to, at least within memory, have a standard encoding for all strings. That's where unicode
comes in. I'm having trouble tracking down exactly what encoding Python uses internally for sure, but it doesn't really matter just for this. The point is that you know it's a sequence of bytes that are interpreted a certain way. So you only need to think about the characters themselves, and not the bytes.
The problem is that in practice, you run into both. Some libraries give you a str
, and some expect a str
. Certainly that makes sense whenever you're streaming a series of bytes (such as to or from disk or over a web request). So you need to be able to translate back and forth.
Enter codecs
: it's the translation library between these two data types. You use encode
to generate a sequence of bytes (str
) from a text string (unicode
), and you use decode
to get a text string (unicode
) from a sequence of bytes (str
).
For example:
>>> s = "I look like a string, but I'm actually a sequence of bytes. \xe2\x9d\xa4"
>>> codecs.decode(s, 'utf-8')
u"I look like a string, but I'm actually a sequence of bytes. \u2764"
What happened here? I gave Python a sequence of bytes, and then I told it, "Give me the unicode
version of this, given that this sequence of bytes is in 'utf-8'
." It did as I asked, and those bytes (a heart character) are now treated as a whole, represented by their Unicode codepoint.
Let's go the other way around:
>>> u = u"I'm a string! Really! \u2764"
>>> codecs.encode(u, 'utf-8')
"I'm a string! Really! \xe2\x9d\xa4"
I gave Python a Unicode string, and I asked it to translate the string into a sequence of bytes using the 'utf-8'
encoding. So it did, and now the heart is just a bunch of bytes it can't print as ASCII; so it shows me the hexadecimal instead.
We can work with other encodings, too, of course:
>>> s = "I have a section \xa7"
>>> codecs.decode(s, 'latin1')
u'I have a section \xa7'
>>> codecs.decode(s, 'latin1')[-1] == u'\u00A7'
True
>>> u = u"I have a section \u00a7"
>>> u
u'I have a section \xa7'
>>> codecs.encode(u, 'latin1')
'I have a section \xa7'
('\xa7'
is the section character, in both
Unicode and Latin-1.)
So for your question, you first need to figure out what encoding your str
is in.
Did it come from a file? From a web request? From your database? Then the source determines the encoding. Find out the encoding of the source and use that to translate it into a unicode
.
s = [get from external source]
u = codecs.decode(s, 'utf-8') # Replace utf-8 with the actual input encoding
Or maybe you're trying to write it out somewhere. What encoding does the destination expect? Use that to translate it into a str
. UTF-8 is a good choice for plain text documents; most things can read it.
u = u'My string'
s = codecs.encode(u, 'utf-8') # Replace utf-8 with the actual output encoding
[Write s out somewhere]
Are you just translating back and forth in memory for interoperability or something? Then just pick an encoding and stick with it; 'utf-8'
is probably the best choice for that:
u = u'My string'
s = codecs.encode(u, 'utf-8')
newu = codecs.decode(s, 'utf-8')
In modern programming, you probably never want to use the 'ascii'
encoding for any of this. It's an extremely small subset of all possible characters, and no system I know of uses it by default or anything.
Python 3 does its best to make this immensely clearer simply by changing the names. In Python 3, str
was replaced with bytes
, and unicode
was replaced with str
.
To make the solution by @flion look really great, you could adjust the center point for that icon so it doesn't wobble up and down. This looks right for me at a small font size:
.glyphicon-refresh.spinning {
transform-origin: 48% 50%;
}
Extern is the keyword you use to declare that the variable itself resides in another translation unit.
So you can decide to use a variable in a translation unit and then access it from another one, then in the second one you declare it as extern and the symbol will be resolved by the linker.
If you don't declare it as extern you'll get 2 variables named the same but not related at all, and an error of multiple definitions of the variable.
In standard C lua, no. You will have to settle for seconds, unless you are willing to modify the lua interpreter yourself to have os.time use the resolution you want. That may be unacceptable, however, if you are writing code for other people to run on their own and not something like a web application where you have full control of the environment.
Edit: another option is to write your own small DLL in C that extends lua with a new function that would give you the values you want, and require that dll be distributed with your code to whomever is going to be using it.
I spent a while figuring this out, all I wanted was a simple example of how to do it, so I thought I'd post how I did it. This is some code that updates a library and has a progress dialog showing how many books have been updated and cancels when a user dismisses the dialog:
private class UpdateLibrary extends AsyncTask<Void, Integer, Boolean>{
private ProgressDialog dialog = new ProgressDialog(Library.this);
private int total = Library.instance.appState.getAvailableText().length;
private int count = 0;
//Used as handler to cancel task if back button is pressed
private AsyncTask<Void, Integer, Boolean> updateTask = null;
@Override
protected void onPreExecute(){
updateTask = this;
dialog.setProgressStyle(ProgressDialog.STYLE_HORIZONTAL);
dialog.setOnDismissListener(new OnDismissListener() {
@Override
public void onDismiss(DialogInterface dialog) {
updateTask.cancel(true);
}
});
dialog.setMessage("Updating Library...");
dialog.setMax(total);
dialog.show();
}
@Override
protected Boolean doInBackground(Void... arg0) {
for (int i = 0; i < appState.getAvailableText().length;i++){
if(isCancelled()){
break;
}
//Do your updating stuff here
}
}
@Override
protected void onProgressUpdate(Integer... progress){
count += progress[0];
dialog.setProgress(count);
}
@Override
protected void onPostExecute(Boolean finished){
dialog.dismiss();
if (finished)
DialogHelper.showMessage(Str.TEXT_UPDATELIBRARY, Str.TEXT_UPDATECOMPLETED, Library.instance);
else
DialogHelper.showMessage(Str.TEXT_UPDATELIBRARY,Str.TEXT_NOUPDATE , Library.instance);
}
}
Following is a Java-Spark way to do it , 1) add a sequentially increment columns. 2) Select Row number using Id. 3) Drop the Column
import static org.apache.spark.sql.functions.*;
..
ds = ds.withColumn("rownum", functions.monotonically_increasing_id());
ds = ds.filter(col("rownum").equalTo(99));
ds = ds.drop("rownum");
N.B. monotonically_increasing_id starts from 0;
What would be handy would be to apply the Camera position to a new plot. So I plot, then move the plot around with the mouse changing the distance. Then try to replicate the view including the distance on another plot. I find that axx.ax.get_axes() gets me an object with the old .azim and .elev.
IN PYTHON...
axx=ax1.get_axes()
azm=axx.azim
ele=axx.elev
dst=axx.dist # ALWAYS GIVES 10
#dst=ax1.axes.dist # ALWAYS GIVES 10
#dst=ax1.dist # ALWAYS GIVES 10
Later 3d graph...
ax2.view_init(elev=ele, azim=azm) #Works!
ax2.dist=dst # works but always 10 from axx
EDIT 1... OK, Camera position is the wrong way of thinking concerning the .dist value. It rides on top of everything as a kind of hackey scalar multiplier for the whole graph.
This works for the magnification/zoom of the view:
xlm=ax1.get_xlim3d() #These are two tupples
ylm=ax1.get_ylim3d() #we use them in the next
zlm=ax1.get_zlim3d() #graph to reproduce the magnification from mousing
axx=ax1.get_axes()
azm=axx.azim
ele=axx.elev
Later Graph...
ax2.view_init(elev=ele, azim=azm) #Reproduce view
ax2.set_xlim3d(xlm[0],xlm[1]) #Reproduce magnification
ax2.set_ylim3d(ylm[0],ylm[1]) #...
ax2.set_zlim3d(zlm[0],zlm[1]) #...
The opposite of read
is show
.
Prelude> show 3
"3"
Prelude> read $ show 3 :: Int
3
If this is your app, if you connect the device to your computer, you can use the "Devices" option on Xcode's "Window" menu and then download the app's data container to your computer. Just select your app from the list of installed apps, and click on the "gear" icon and choose "Download Container".
Once you've downloaded it, right click on the file in the Finder and choose "Show Package Contents".
Try this method for uploading Image file from camera
package com.example.imageupload;
import java.io.ByteArrayInputStream;
import java.io.ByteArrayOutputStream;
import java.io.File;
import java.io.FileInputStream;
import java.io.FileNotFoundException;
import java.io.IOException;
import java.io.InputStream;
import java.io.OutputStream;
import org.apache.http.Header;
import org.apache.http.HttpEntity;
import org.apache.http.message.BasicHeader;
public class MultipartEntity implements HttpEntity {
private String boundary = null;
ByteArrayOutputStream out = new ByteArrayOutputStream();
boolean isSetLast = false;
boolean isSetFirst = false;
public MultipartEntity() {
this.boundary = System.currentTimeMillis() + "";
}
public void writeFirstBoundaryIfNeeds() {
if (!isSetFirst) {
try {
out.write(("--" + boundary + "\r\n").getBytes());
} catch (final IOException e) {
}
}
isSetFirst = true;
}
public void writeLastBoundaryIfNeeds() {
if (isSetLast) {
return;
}
try {
out.write(("\r\n--" + boundary + "--\r\n").getBytes());
} catch (final IOException e) {
}
isSetLast = true;
}
public void addPart(final String key, final String value) {
writeFirstBoundaryIfNeeds();
try {
out.write(("Content-Disposition: form-data; name=\"" + key + "\"\r\n")
.getBytes());
out.write("Content-Type: text/plain; charset=UTF-8\r\n".getBytes());
out.write("Content-Transfer-Encoding: 8bit\r\n\r\n".getBytes());
out.write(value.getBytes());
out.write(("\r\n--" + boundary + "\r\n").getBytes());
} catch (final IOException e) {
}
}
public void addPart(final String key, final String fileName,
final InputStream fin) {
addPart(key, fileName, fin, "application/octet-stream");
}
public void addPart(final String key, final String fileName,
final InputStream fin, String type) {
writeFirstBoundaryIfNeeds();
try {
type = "Content-Type: " + type + "\r\n";
out.write(("Content-Disposition: form-data; name=\"" + key
+ "\"; filename=\"" + fileName + "\"\r\n").getBytes());
out.write(type.getBytes());
out.write("Content-Transfer-Encoding: binary\r\n\r\n".getBytes());
final byte[] tmp = new byte[4096];
int l = 0;
while ((l = fin.read(tmp)) != -1) {
out.write(tmp, 0, l);
}
out.flush();
} catch (final IOException e) {
} finally {
try {
fin.close();
} catch (final IOException e) {
}
}
}
public void addPart(final String key, final File value) {
try {
addPart(key, value.getName(), new FileInputStream(value));
} catch (final FileNotFoundException e) {
}
}
public long getContentLength() {
writeLastBoundaryIfNeeds();
return out.toByteArray().length;
}
public Header getContentType() {
return new BasicHeader("Content-Type", "multipart/form-data; boundary="
+ boundary);
}
public boolean isChunked() {
return false;
}
public boolean isRepeatable() {
return false;
}
public boolean isStreaming() {
return false;
}
public void writeTo(final OutputStream outstream) throws IOException {
outstream.write(out.toByteArray());
}
public Header getContentEncoding() {
return null;
}
public void consumeContent() throws IOException,
UnsupportedOperationException {
if (isStreaming()) {
throw new UnsupportedOperationException(
"Streaming entity does not implement #consumeContent()");
}
}
public InputStream getContent() throws IOException,
UnsupportedOperationException {
return new ByteArrayInputStream(out.toByteArray());
}
}
Use of class for uploading
private void doFileUpload(File file_path) {
Log.d("Uri", "Do file path" + file_path);
try {
HttpClient client = new DefaultHttpClient();
//use your server path of php file
HttpPost post = new HttpPost(ServerUploadPath);
Log.d("ServerPath", "Path" + ServerUploadPath);
FileBody bin1 = new FileBody(file_path);
Log.d("Enter", "Filebody complete " + bin1);
MultipartEntity reqEntity = new MultipartEntity();
reqEntity.addPart("uploaded_file", bin1);
reqEntity.addPart("email", new StringBody(useremail));
post.setEntity(reqEntity);
Log.d("Enter", "Image send complete");
HttpResponse response = client.execute(post);
resEntity = response.getEntity();
Log.d("Enter", "Get Response");
try {
final String response_str = EntityUtils.toString(resEntity);
if (resEntity != null) {
Log.i("RESPONSE", response_str);
JSONObject jobj = new JSONObject(response_str);
result = jobj.getString("ResponseCode");
Log.e("Result", "...." + result);
}
} catch (Exception ex) {
Log.e("Debug", "error: " + ex.getMessage(), ex);
}
} catch (Exception e) {
Log.e("Upload Exception", "");
e.printStackTrace();
}
}
Service for uploading
<?php
$image_name = $_FILES["uploaded_file"]["name"];
$tmp_arr = explode(".",$image_name);
$img_extn = end($tmp_arr);
$new_image_name = 'image_'. uniqid() .'.'.$img_extn;
$flag=0;
if (file_exists("Images/".$new_image_name))
{
$msg=$new_image_name . " already exists."
header('Content-type: application/json');
echo json_encode(array("ResponseCode"=>"2","ResponseMsg"=>$msg));
}else{
move_uploaded_file($_FILES["uploaded_file"]["tmp_name"],"Images/". $new_image_name);
$flag = 1;
}
if($flag == 1){
require 'db.php';
$static_url =$new_image_name;
$conn=mysql_connect($db_host,$db_username,$db_password) or die("unable to connect localhost".mysql_error());
$db=mysql_select_db($db_database,$conn) or die("unable to select message_app");
$email = "";
if((isset($_REQUEST['email'])))
{
$email = $_REQUEST['email'];
}
$sql ="insert into alert(images) values('$static_url')";
$result=mysql_query($sql);
if($result){
echo json_encode(array("ResponseCode"=>"1","ResponseMsg"=> "Insert data successfully.","Result"=>"True","ImageName"=>$static_url,"email"=>$email));
} else
{
echo json_encode(array("ResponseCode"=>"2","ResponseMsg"=> "Could not insert data.","Result"=>"False","email"=>$email));
}
}
else{
echo json_encode(array("ResponseCode"=>"2","ResponseMsg"=> "Erroe While Inserting Image.","Result"=>"False"));
}
?>
There's no need to manually set the colors. Instead, specify a grayscale colormap...
import numpy as np
import matplotlib.pyplot as plt
# Generate data...
x = np.random.random(10)
y = np.random.random(10)
# Plot...
plt.scatter(x, y, c=y, s=500)
plt.gray()
plt.show()
Or, if you'd prefer a wider range of colormaps, you can also specify the cmap
kwarg to scatter
. To use the reversed version of any of these, just specify the "_r
" version of any of them. E.g. gray_r
instead of gray
. There are several different grayscale colormaps pre-made (e.g. gray
, gist_yarg
, binary
, etc).
import matplotlib.pyplot as plt
import numpy as np
# Generate data...
x = np.random.random(10)
y = np.random.random(10)
plt.scatter(x, y, c=y, s=500, cmap='gray')
plt.show()
Becomes more difficult when you need year and week.
Try to find out which week is 01.01.2017.
(It is the 52nd week of 2016, which is from Mon 26.12.2016 - Sun 01.01.2017).
After a longer search I found
strftime('%G-%V',strtotime("2017-01-01"))
Result: 2016-52
https://www.php.net/manual/de/function.strftime.php
ISO-8601:1988 week number of the given year, starting with the first week of the year with at least 4 weekdays, with Monday being the start of the week. (01 through 53)
The equivalent in mysql is DATE_FORMAT(date, '%x-%v')
https://www.w3schools.com/sql/func_mysql_date_format.asp
Week where Monday is the first day of the week (01 to 53).
Could not find a corresponding solution with date() or DateTime.
At least not without solutions like "+1day, last monday".
I found this https://typescriptbcl.codeplex.com/SourceControl/latest
here is the Guid version they have in case the link does not work later.
module System {
export class Guid {
constructor (public guid: string) {
this._guid = guid;
}
private _guid: string;
public ToString(): string {
return this.guid;
}
// Static member
static MakeNew(): Guid {
var result: string;
var i: string;
var j: number;
result = "";
for (j = 0; j < 32; j++) {
if (j == 8 || j == 12 || j == 16 || j == 20)
result = result + '-';
i = Math.floor(Math.random() * 16).toString(16).toUpperCase();
result = result + i;
}
return new Guid(result);
}
}
}
The problem could be in the path of the file you want to open. Try and print the path and see if it is fine I had a similar problem
def scrap(soup,filenm):
htm=(soup.prettify().replace("https://","")).replace("http://","")
if ".php" in filenm or ".aspx" in filenm or ".jsp" in filenm:
filenm=filenm.split("?")[0]
filenm=("{}.html").format(filenm)
print("Converted a file into html that was not compatible")
if ".aspx" in htm:
htm=htm.replace(".aspx",".aspx.html")
print("[process]...conversion fron aspx")
if ".jsp" in htm:
htm=htm.replace(".jsp",".jsp.html")
print("[process]..conversion from jsp")
if ".php" in htm:
htm=htm.replace(".php",".php.html")
print("[process]..conversion from php")
output=open("data/"+filenm,"w",encoding="utf-8")
output.write(htm)
output.close()
print("{} bits of data written".format(len(htm)))
but after adding this code:
nofilenametxt=filenm.split('/')
nofilenametxt=nofilenametxt[len(nofilenametxt)-1]
if (len(nofilenametxt)==0):
filenm=("{}index.html").format(filenm)
You have a few options other than using public key authentication:
If you decide to give sshpass a chance here is a working script snippet to do so:
export SSHPASS=your-password-here
sshpass -e sftp -oBatchMode=no -b - sftp-user@remote-host << !
cd incoming
put your-log-file.log
bye
!
You can use the form reference which exists on all inputs, this is much faster than .closest()
(5-10 times faster in Chrome and IE8). Works on IE6 & 7 too.
var input = $('input[type=submit]');
var form = input.length > 0 ? $(input[0].form) : $();
There is no built-in functionality in VBS for that, however, you can use the FileSystemObject FileExists function for that :
Option Explicit
DIM fso
Set fso = CreateObject("Scripting.FileSystemObject")
If (fso.FileExists("C:\Program Files\conf")) Then
WScript.Echo("File exists!")
WScript.Quit()
Else
WScript.Echo("File does not exist!")
End If
WScript.Quit()
select LAST_LOAD_TIME, ELAPSED_TIME, MODULE, SQL_TEXT elapsed from v$sql
order by LAST_LOAD_TIME desc
More complicated example (don't forget to delete or to substitute PATTERN
):
select * from (
select LAST_LOAD_TIME, to_char(ELAPSED_TIME/1000, '999,999,999.000') || ' ms' as TIME,
MODULE, SQL_TEXT from SYS."V_\$SQL"
where SQL_TEXT like '%PATTERN%'
order by LAST_LOAD_TIME desc
) where ROWNUM <= 5;
Not completely clear what you mean. Perhaps:
<script type="text/javascript">
$(document).ready(function() {
$("a").click(function() {
var params = {};
params['pageNo'] = $(this).text();
params['sortBy'] = $("#sortBy").val();
$("#results").load( "jquery-routing.php", params );
return false;
});
});
</script>
And of course dependency injection, or IoC (inversion of control), which is central to the whole BeanFactory/ApplicationContext stuff.
Open command prompt in the folder in which you files to be imported are present. when you type 'python', python terminal will be opened. Now you can use
import script_nameNote: no .py extension to be used while importing.
c
can be used on lists (and not only on vectors):
# you have
l1 = list(2, 3)
l2 = list(4)
# you want
list(2, 3, 4)
[[1]]
[1] 2
[[2]]
[1] 3
[[3]]
[1] 4
# you can do
c(l1, l2)
[[1]]
[1] 2
[[2]]
[1] 3
[[3]]
[1] 4
If you have a list of lists, you can do it (perhaps) more comfortably with do.call
, eg:
do.call(c, list(l1, l2))
protected void OnRowCreated(object sender, GridViewRowEventArgs e)
{
e.Row.Cells[columnIndex].Visible = false;
}
HeaderText
for the GridViewColumn
and then find the column using that HeaderText
.
protected void UsersGrid_RowCreated(object sender, GridViewRowEventArgs e)
{
((DataControlField)UsersGrid.Columns
.Cast<DataControlField>()
.Where(fld => fld.HeaderText == "Email")
.SingleOrDefault()).Visible = false;
}
Depending on your needs, you can probably rely on node's path
module.
You may not be able to hit the filesystem (e.g. the file hasn't been created yet) and tbh you probably want to avoid hitting the filesystem unless you really need the extra validation. If you can make the assumption that what you are checking for follows .<extname>
format, just look at the name.
Obviously if you are looking for a file without an extname you will need to hit the filesystem to be sure. But keep it simple until you need more complicated.
const path = require('path');
function isFile(pathItem) {
return !!path.extname(pathItem);
}
I think @Dmitri has nice solution at Matching strings with wildcard https://stackoverflow.com/a/30300521/1726296
Based on his solution, I have created two extension methods. (credit goes to him)
May be helpful.
public static String WildCardToRegular(this String value)
{
return "^" + Regex.Escape(value).Replace("\\?", ".").Replace("\\*", ".*") + "$";
}
public static bool WildCardMatch(this String value,string pattern,bool ignoreCase = true)
{
if (ignoreCase)
return Regex.IsMatch(value, WildCardToRegular(pattern), RegexOptions.IgnoreCase);
return Regex.IsMatch(value, WildCardToRegular(pattern));
}
Usage:
string pattern = "file.*";
var isMatched = "file.doc".WildCardMatch(pattern)
or
string xlsxFile = "file.xlsx"
var isMatched = xlsxFile.WildCardMatch(pattern)
A small virtual machine maybe?
Try VirtualBox a freeware program to install virtual machines (a lot of work for what you want to do, but it'll work)
Kotlin solution, based on what others wrote here:
fun isTableExists(database: SQLiteDatabase, tableName: String): Boolean {
database.rawQuery("select DISTINCT tbl_name from sqlite_master where tbl_name = '$tableName'", null)?.use {
return it.count > 0
} ?: return false
}
A Seq is an Iterable that has a defined order of elements. Sequences provide a method apply()
for indexing, ranging from 0 up to the length of the sequence. Seq has many subclasses including Queue, Range, List, Stack, and LinkedList.
A List is a Seq that is implemented as an immutable linked list. It's best used in cases with last-in first-out (LIFO) access patterns.
Here is the complete collection class hierarchy from the Scala FAQ:
You can also look in the init script area (e.g. centos vi /etc/init.d/jenkins ) for details on how the service is actually started and stopped.
Might be you forgotten to place the Main class and Test Case class in /src/test/java. Check it Once.
I think you don't need to update only some specific field. Just update whole data.
@Update query
It is a given query basically. No need to make some new query.
@Dao
interface MemoDao {
@Insert
suspend fun insert(memo: Memo)
@Delete
suspend fun delete(memo: Memo)
@Update
suspend fun update(memo: Memo)
}
Memo.class
@Entity
data class Memo (
@PrimaryKey(autoGenerate = true) val id: Int,
@ColumnInfo(name = "title") val title: String?,
@ColumnInfo(name = "content") val content: String?,
@ColumnInfo(name = "photo") val photo: List<ByteArray>?
)
Only thing you need to know is 'id'. For instance, if you want to update only 'title', you can reuse 'content' and 'photo' from already inserted data. In real code, use like this
val memo = Memo(id, title, content, byteArrayList)
memoViewModel.update(memo)
It is used when we want to wait for more than one thread to complete its task. It is similar to join in threads.
Where we can use CountDownLatch
Consider a scenario where we have requirement where we have three threads "A", "B" and "C" and we want to start thread "C" only when "A" and "B" threads completes or partially completes their task.
It can be applied to real world IT scenario
Consider a scenario where manager divided modules between development teams (A and B) and he wants to assign it to QA team for testing only when both the teams completes their task.
public class Manager {
public static void main(String[] args) throws InterruptedException {
CountDownLatch countDownLatch = new CountDownLatch(2);
MyDevTeam teamDevA = new MyDevTeam(countDownLatch, "devA");
MyDevTeam teamDevB = new MyDevTeam(countDownLatch, "devB");
teamDevA.start();
teamDevB.start();
countDownLatch.await();
MyQATeam qa = new MyQATeam();
qa.start();
}
}
class MyDevTeam extends Thread {
CountDownLatch countDownLatch;
public MyDevTeam (CountDownLatch countDownLatch, String name) {
super(name);
this.countDownLatch = countDownLatch;
}
@Override
public void run() {
System.out.println("Task assigned to development team " + Thread.currentThread().getName());
try {
Thread.sleep(2000);
} catch (InterruptedException ex) {
ex.printStackTrace();
}
System.out.println("Task finished by development team Thread.currentThread().getName());
this.countDownLatch.countDown();
}
}
class MyQATeam extends Thread {
@Override
public void run() {
System.out.println("Task assigned to QA team");
try {
Thread.sleep(2000);
} catch (InterruptedException ex) {
ex.printStackTrace();
}
System.out.println("Task finished by QA team");
}
}
Output of above code will be:
Task assigned to development team devB
Task assigned to development team devA
Task finished by development team devB
Task finished by development team devA
Task assigned to QA team
Task finished by QA team
Here await() method waits for countdownlatch flag to become 0, and countDown() method decrements countdownlatch flag by 1.
Limitation of JOIN: Above example can also be achieved with JOIN, but JOIN can not be used in two scenarios:
Just wanted to add that you can do this to apply dos2unix fix for all files under a directory, as it saved me heaps of time when we had to 'fix' a bunch of our scripts.
find . -type f -exec dos2unix.exe {} \;
I'd do it as a comment to Roman's answer, but I don't have access to commenting yet.
Well the thing is that you probably actually don't want the test to run indefinitely. You just want to wait a longer amount of time before the library decides the element doesn't exist. In that case, the most elegant solution is to use implicit wait, which is designed for just that:
driver.manage().timeouts().implicitlyWait( ... )
We can use the following regex explained with the help of sed system command. The similar regex can be used in other languages and platforms.
Add the text into some file say test
manjeet-laptop:Desktop manjeet$ cat test
"The dog has a long tail, and it is RED!"
We can use the following regex to replace all white spaces with single space
manjeet-laptop:Desktop manjeet$ sed 's/ \{1,\}/ /g' test
"The dog has a long tail, and it is RED!"
Hope this serves the purpose
"Case" can return single value only, but you can use complex type:
create type foo as (a int, b text);
select (case 1 when 1 then (1,'qq')::foo else (2,'ww')::foo end).*;
After long time looking into TextView class I found a way to prevent keyboard to appears. The trick is hide it right after it appears, so I searched a method that is called after keyboard appear and hide it.
Implemented EditText class
public class NoImeEditText extends EditText {
public NoImeEditText(Context context, AttributeSet attrs) {
super(context, attrs);
}
/**
* This method is called before keyboard appears when text is selected.
* So just hide the keyboard
* @return
*/
@Override
public boolean onCheckIsTextEditor() {
hideKeyboard();
return super.onCheckIsTextEditor();
}
/**
* This methdod is called when text selection is changed, so hide keyboard to prevent it to appear
* @param selStart
* @param selEnd
*/
@Override
protected void onSelectionChanged(int selStart, int selEnd) {
super.onSelectionChanged(selStart, selEnd);
hideKeyboard();
}
private void hideKeyboard(){
InputMethodManager imm = (InputMethodManager) getContext().getSystemService(Context.INPUT_METHOD_SERVICE);
imm.hideSoftInputFromWindow(getWindowToken(), 0);
}
}
and style
<com.my.app.CustomViews.NoImeEditText
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:editable="false"
android:background="@null"
android:textSize="@dimen/cell_text" />
i am use following construction to convert back nl2br
function br2nl( $input ) {
return preg_replace('/<br\s?\/?>/ius', "\n", str_replace("\n","",str_replace("\r","", htmlspecialchars_decode($input))));
}
here i replaced \n
and \r
symbols from $input because nl2br dosen't remove them and this causes wrong output with \n\n
or \r<br>
.
I solved it by removing this line:
android:theme="@style/Theme.MyCompatTheme"
from activity properties in the Manifest file
Alternate approach : without installation of Redistributable package.
Check out in some github for the relevant dll, some people upload the reference dll for their application dependency.
you can download and use them in your project , I have used and run them successfully.
example : https://github.com/Emotiv/community-sdk/find/master
It might be cleaner if you have a function, say called vprint
, that checks the verbose flag for you. Then you just call your own vprint
function any place you want optional verbosity.
Here's what i do to FORCE UNLOCK FOR some locked tables in MySQL
1) Enter MySQL
mysql -u your_user -p
2) Let's see the list of locked tables
mysql> show open tables where in_use>0;
3) Let's see the list of the current processes, one of them is locking your table(s)
mysql> show processlist;
4) Let's kill one of these processes
mysql> kill put_process_id_here;
Another way:
Regex.Replace(urlString, "www.(.+)", "$1");
All you need to do is use the file object as an iterator.
for line in open("log.txt"):
do_something_with(line)
Even better is using context manager in recent Python versions.
with open("log.txt") as fileobject:
for line in fileobject:
do_something_with(line)
This will automatically close the file as well.
//My Function is worked. Hope help full for you :)
$input = [
'1' => (object) [1,2,3],
'2' => (object) [4,5,6,
(object) [6,7,8,
[9, 10, 11,
(object) [12, 13, 14]]]
],
'3' =>[15, 16, (object)[17, 18]]
];
echo "<pre>";
var_dump($input);
var_dump(toAnArray($input));
public function toAnArray(&$input) {
if (is_object($input)) {
$input = get_object_vars($input);
}
foreach ($input as &$item) {
if (is_object($item) || is_array($item)) {
if (is_object($item)) {
$item = get_object_vars($item);
}
self::toAnArray($item);
}
}
}
simply use delete
, but be aware that you should read fully what the effects are of using this:
delete object.index; //true
object.index; //undefined
but if I was to use like so:
var x = 1; //1
delete x; //false
x; //1
but if you do wish to delete variables in the global namespace, you can use it's global object such as window
, or using this
in the outermost scope i.e
var a = 'b';
delete a; //false
delete window.a; //true
delete this.a; //true
http://perfectionkills.com/understanding-delete/
another fact is that using delete on an array will not remove the index but only set the value to undefined, meaning in certain control structures such as for loops, you will still iterate over that entity, when it comes to array's you should use splice
which is a prototype of the array object.
Example Array:
var myCars=new Array();
myCars[0]="Saab";
myCars[1]="Volvo";
myCars[2]="BMW";
if I was to do:
delete myCars[1];
the resulting array would be:
["Saab", undefined, "BMW"]
but using splice like so:
myCars.splice(1,1);
would result in:
["Saab", "BMW"]
Using one-to-many relation (FK from Friend to parent class) will make your app more scalable (as you can trivially extend the Friend object with additional attributes beyond the simple name). And thus this is the best way
The links in Dave's post are great. Just to put a few technical details about the google links into an answer here on SO:
Google Calendar Link
<a href="http://www.google.com/calendar/event?action=TEMPLATE&text=Example%20Event&dates=20131124T010000Z/20131124T020000Z&details=Event%20Details%20Here&location=123%20Main%20St%2C%20Example%2C%20NY">Add to gCal</a>
the parameters being:
Here's a new link structure that seems to support the new google version of google calendar w/o requiring API interaction:
https://calendar.google.com/calendar/r/eventedit?text=My+Custom+Event&dates=20180512T230000Z/20180513T030000Z&details=For+details,+link+here:+https://example.com/tickets-43251101208&location=Garage+Boston+-+20+Linden+Street+-+Allston,+MA+02134
New base url: https://calendar.google.com/calendar/r/eventedit
New parameters:
Notes:
+
for space in addition to %20
(urlencode
vs rawurlencode
in php - both work)If you have a tag created starting with the # character, e.g. #ST002
, you might find that u are unable to delete using normal patterns. i.e.
git tag -d #STOO2
Will not delete the tag, but wrapping it in a String Literal like so
git tag -d "#ST002" or git tag -d '#ST002'
That will get it deleted. Hoping it will help someone who made the mistake of using # to write tag names.
Constructors are not inherited. They are called implicitly or explicitly by the child constructor.
The compiler creates a default constructor (one with no arguments) and a default copy constructor (one with an argument which is a reference to the same type). But if you want a constructor that will accept an int, you have to define it explicitly.
class A
{
public:
explicit A(int x) {}
};
class B: public A
{
public:
explicit B(int x) : A(x) { }
};
UPDATE: In C++11, constructors can be inherited. See Suma's answer for details.
foo = ['a', 'b', 'c', 'd', 'e']
number_of_samples = 1
In python 2:
random_items = random.sample(population=foo, k=number_of_samples)
In python 3:
random_items = random.choices(population=foo, k=number_of_samples)
The /g
modifier is used to perform a global match (find all matches rather than stopping after the first)
You can use \d
for digit, as it is shorter than [0-9]
.
JavaScript:
var s = "04.07.2012";
echo(s.replace(/\d/g, "X"));
Output:
XX.XX.XXXX
Try below one:
svn copy http://svn.example.com/repos/calc/trunk@rev-no
http://svn.example.com/repos/calc/branches/my-calc-branch
-m "Creating a private branch of /calc/trunk." --parents
No slash "\" between the svn URLs.
I think you want something like this:
Intent foo = new Intent(this, viewContacts.class);
foo.putExtra("myFirstKey", "myFirstValue");
foo.putExtra("mySecondKey", "mySecondValue");
startActivity(foo);
or you can combine them into a bundle first. Corresponding getExtra() routines exist for the other side. See the intent topic in the dev guide for more information.
Modern browsers will take script tags in the body like so:
<body>
<script src="scripts/main.js"></script>
</body>
Basically, it means that the script will be loaded once the page has finished, which may be useful in certain cases (namely DOM manipulation). However, I highly recommend you take the same script and put it in the head tag with "defer", as it will give the same effect.
<head>
<script src="scripts/main.js" defer></script>
</head>
Here are a few options for changing text / label sizes
library(ggplot2)
# Example data using mtcars
a <- aggregate(mpg ~ vs + am , mtcars, function(i) round(mean(i)))
p <- ggplot(mtcars, aes(factor(vs), y=mpg, fill=factor(am))) +
geom_bar(stat="identity",position="dodge") +
geom_text(data = a, aes(label = mpg),
position = position_dodge(width=0.9), size=20)
The size
in the geom_text
changes the size of the geom_text
labels.
p <- p + theme(axis.text = element_text(size = 15)) # changes axis labels
p <- p + theme(axis.title = element_text(size = 25)) # change axis titles
p <- p + theme(text = element_text(size = 10)) # this will change all text size
# (except geom_text)
For this And why size of 10 in geom_text() is different from that in theme(text=element_text()) ?
Yes, they are different. I did a quick manual check and they appear to be in the ratio of ~ (14/5) for geom_text
sizes to theme
sizes.
So a horrible fix for uniform sizes is to scale by this ratio
geom.text.size = 7
theme.size = (14/5) * geom.text.size
ggplot(mtcars, aes(factor(vs), y=mpg, fill=factor(am))) +
geom_bar(stat="identity",position="dodge") +
geom_text(data = a, aes(label = mpg),
position = position_dodge(width=0.9), size=geom.text.size) +
theme(axis.text = element_text(size = theme.size, colour="black"))
This of course doesn't explain why? and is a pita (and i assume there is a more sensible way to do this)
This will output the number of lines that contain your search string.
grep -c "echo" FILE
This won't, however, count the number of occurrences in the file (ie, if you have echo multiple times on one line).
edit:
After playing around a bit, you could get the number of occurrences using this dirty little bit of code:
sed 's/echo/echo\n/g' FILE | grep -c "echo"
This basically adds a newline following every instance of echo so they're each on their own line, allowing grep to count those lines. You can refine the regex if you only want the word "echo", as opposed to "echoing", for example.
I tried to implement the result of Nick which is:
$('.selectorUsedToCreateTheDialog').dialog('option', 'title', 'My New title');
But that didn't work for me because i had multiple dialogs on 1 page. In such a situation it will only set the title correct the first time. Trying to staple commands did not work:
$("#modal_popup").html(data);
$("#modal_popup").dialog('option', 'title', 'My New Title');
$("#modal_popup").dialog({ width: 950, height: 550);
I fixed this by adding the title to the javascript function arguments of each dialog on the page:
function show_popup1() {
$("#modal_popup").html(data);
$("#modal_popup").dialog({ width: 950, height: 550, title: 'Popup Title of my First Dialog'});
}
function show_popup2() {
$("#modal_popup").html(data);
$("#modal_popup").dialog({ width: 950, height: 550, title: 'Popup Title of my Other Dialog'});
}
var list = new List<string>();
var queryable = list.AsQueryable();
Add a reference to: System.Linq
The following will parse an XML string into an XML document in all major browsers, including Internet Explorer 6. Once you have that, you can use the usual DOM traversal methods/properties such as childNodes and getElementsByTagName() to get the nodes you want.
var parseXml;
if (typeof window.DOMParser != "undefined") {
parseXml = function(xmlStr) {
return ( new window.DOMParser() ).parseFromString(xmlStr, "text/xml");
};
} else if (typeof window.ActiveXObject != "undefined" &&
new window.ActiveXObject("Microsoft.XMLDOM")) {
parseXml = function(xmlStr) {
var xmlDoc = new window.ActiveXObject("Microsoft.XMLDOM");
xmlDoc.async = "false";
xmlDoc.loadXML(xmlStr);
return xmlDoc;
};
} else {
throw new Error("No XML parser found");
}
Example usage:
var xml = parseXml("<foo>Stuff</foo>");
alert(xml.documentElement.nodeName);
Which I got from https://stackoverflow.com/a/8412989/1232175.
If you want to read a zipped or a tar.gz file into pandas dataframe, the read_csv
methods includes this particular implementation.
df = pd.read_csv('filename.zip')
Or the long form:
df = pd.read_csv('filename.zip', compression='zip', header=0, sep=',', quotechar='"')
Description of the compression argument from the docs:
compression : {‘infer’, ‘gzip’, ‘bz2’, ‘zip’, ‘xz’, None}, default ‘infer’ For on-the-fly decompression of on-disk data. If ‘infer’ and filepath_or_buffer is path-like, then detect compression from the following extensions: ‘.gz’, ‘.bz2’, ‘.zip’, or ‘.xz’ (otherwise no decompression). If using ‘zip’, the ZIP file must contain only one data file to be read in. Set to None for no decompression.
New in version 0.18.1: support for ‘zip’ and ‘xz’ compression.
You should check out pysftp https://pypi.python.org/pypi/pysftp it depends on paramiko, but wraps most common use cases to just a few lines of code.
import pysftp
import sys
path = './THETARGETDIRECTORY/' + sys.argv[1] #hard-coded
localpath = sys.argv[1]
host = "THEHOST.com" #hard-coded
password = "THEPASSWORD" #hard-coded
username = "THEUSERNAME" #hard-coded
with pysftp.Connection(host, username=username, password=password) as sftp:
sftp.put(localpath, path)
print 'Upload done.'
<script>
var x = 2; //X is global and value is 2.
function myFunction()
{
x = 7; //x is local variable and value is 7.
}
myFunction();
alert(x); //x is gobal variable and the value is 7
</script>
If you are using the latest Skype, go to:
Tools -> Options -> Advanced -> connection.
Disable the 'Use port 80 and 443 for alternatve.. '
Sign Out and Close all Skype windows. Try restart your Apache again.
The file that I was using was saved through Powershell in UTF-8 format. I changed it to ANSI and it fixed the problem.
BEGIN TRAN
CREATE TABLE #Table (_Id INT IDENTITY(1,1) ,id INT , somedate VARCHAR(100) , somevalue INT)
INSERT INTO #Table ( id , somedate , somevalue )
SELECT 45 , '01/Jan/09', 3 UNION ALL
SELECT 23 , '08/Jan/09', 5 UNION ALL
SELECT 12 , '02/Feb/09', 0 UNION ALL
SELECT 77 , '14/Feb/09', 7 UNION ALL
SELECT 39 , '20/Feb/09', 34 UNION ALL
SELECT 33 , '02/Mar/09', 6
;WITH CTE ( _Id, id , _somedate , _somevalue ,_totvalue ) AS
(
SELECT _Id , id , somedate , somevalue ,somevalue
FROM #Table WHERE _id = 1
UNION ALL
SELECT #Table._Id , #Table.id , somedate , somevalue , somevalue + _totvalue
FROM #Table,CTE
WHERE #Table._id > 1 AND CTE._Id = ( #Table._id-1 )
)
SELECT * FROM CTE
ROLLBACK TRAN
span { _x000D_
display:inline-block;_x000D_
width:50px;_x000D_
background:blue;_x000D_
font-size:30px;_x000D_
color:white; _x000D_
text-align:center;_x000D_
}
_x000D_
<p><span>Foo</span><span>Bar</span></p>
_x000D_
Here is another option using sql servers count distinct:
DECLARE @T TABLE( [contract] INT, project INT, activity INT )
INSERT INTO @T VALUES( 1000, 8000, 10 )
INSERT INTO @T VALUES( 1000, 8000, 20 )
INSERT INTO @T VALUES( 1000, 8001, 10 )
INSERT INTO @T VALUES( 2000, 9000, 49 )
INSERT INTO @T VALUES( 2000, 9001, 49 )
INSERT INTO @T VALUES( 3000, 9000, 79 )
INSERT INTO @T VALUES( 3000, 9000, 78 )
SELECT DISTINCT [contract], activity FROM @T AS A WHERE
(SELECT COUNT( DISTINCT activity )
FROM @T AS B WHERE B.[contract] = A.[contract]) = 1
For the Base64 code like:
"data:image/jpg;base64,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"
Use Swift5.0 code like:
func imageFromBase64(_ base64: String) -> UIImage? {
if let url = URL(string: base64) {
if let data = try? Data(contentsOf: url) {
return UIImage(data: data)
}
}
return nil
}
IMHO this is the best way to write your line :
private static final Map<Class<? extends Persistent>, PersistentHelper> class2helper =
new HashMap<Class<? extends Persistent>, PersistentHelper>();
This way the increased indentation without any braces can help you to see that the code was just splited because the line was too long. And instead of 4 spaces, 8 will make it clearer.
You could try removing any alphanumeric characters and space. And then use -n
will give you the line number. Try following:
grep -vn "^[a-zA-Z0-9 ]*$" application.log
You are allowed to use IDs that start with a digit in your HTML5 documents:
The value must be unique amongst all the IDs in the element's home subtree and must contain at least one character. The value must not contain any space characters.
There are no other restrictions on what form an ID can take; in particular, IDs can consist of just digits, start with a digit, start with an underscore, consist of just punctuation, etc.
But querySelector
method uses CSS3 selectors for querying the DOM and CSS3 doesn't support ID selectors that start with a digit:
In CSS, identifiers (including element names, classes, and IDs in selectors) can contain only the characters [a-zA-Z0-9] and ISO 10646 characters U+00A0 and higher, plus the hyphen (-) and the underscore (_); they cannot start with a digit, two hyphens, or a hyphen followed by a digit.
Use a value like b22
for the ID attribute and your code will work.
Since you want to select an element by ID you can also use .getElementById
method:
document.getElementById('22')
The standard numpy methods for calculation mean squared error (variance) and its square root (standard deviation) are numpy.var()
and numpy.std()
, see here and here. They apply to matrices and have the same syntax as numpy.mean()
.
I suppose that the question and the preceding answers might have been posted before these functions became available.
It makes more sense to join the item with the orders than with the people !
SELECT
people.pe_name,
COUNT(distinct orders.ord_id) AS num_orders,
COUNT(items.item_id) AS num_items
FROM
people
INNER JOIN orders ON orders.pe_id = people.pe_id
INNER JOIN items ON items.ord_id = orders.ord_id
GROUP BY
people.pe_id;
Joining the items with the people provokes a lot of doublons. For example, the cake items in order 3 will be linked with the order 2 via the join between the people, and you don't want this to happen !!
So :
1- You need a good understanding of your schema. Items are link to orders, and not to people.
2- You need to count distinct orders for one person, else you will count as many items as orders.
I was having this issue intermittently. Unbeknownst to me, BackboneJS was running on the page and replacing the element I was trying to click. My code looked like this.
driver.findElement(By.id("checkoutLink")).click();
Which is of course functionally the same as this.
WebElement checkoutLink = driver.findElement(By.id("checkoutLink"));
checkoutLink.click();
What would occasionally happen was the javascript would replace the checkoutLink element in between finding and clicking it, ie.
WebElement checkoutLink = driver.findElement(By.id("checkoutLink"));
// javascript replaces checkoutLink
checkoutLink.click();
Which rightfully led to a StaleElementReferenceException when trying to click the link. I couldn't find any reliable way to tell WebDriver to wait until the javascript had finished running, so here's how I eventually solved it.
new WebDriverWait(driver, timeout)
.ignoring(StaleElementReferenceException.class)
.until(new Predicate<WebDriver>() {
@Override
public boolean apply(@Nullable WebDriver driver) {
driver.findElement(By.id("checkoutLink")).click();
return true;
}
});
This code will continually try to click the link, ignoring StaleElementReferenceExceptions until either the click succeeds or the timeout is reached. I like this solution because it saves you having to write any retry logic, and uses only the built-in constructs of WebDriver.
Faroo has a free Web Search API
If you are just interested in the use of Access-Control-Allow-Origin:*
You can do that with this .htaccess
file at the site root.
Header set Access-Control-Allow-Origin "*"
Some useful information here: http://enable-cors.org/server_apache.html
For the following HTML (from Bootstrap 3 examples):
.panel-heading .accordion-toggle:after {_x000D_
/* symbol for "opening" panels */_x000D_
font-family: 'Glyphicons Halflings'; /* essential for enabling glyphicon */_x000D_
content: "\e114"; /* adjust as needed, taken from bootstrap.css */_x000D_
float: right; /* adjust as needed */_x000D_
color: grey; /* adjust as needed */_x000D_
}_x000D_
.panel-heading .accordion-toggle.collapsed:after {_x000D_
/* symbol for "collapsed" panels */_x000D_
content: "\e080"; /* adjust as needed, taken from bootstrap.css */_x000D_
}
_x000D_
<link href="//maxcdn.bootstrapcdn.com/bootstrap/3.3.7/css/bootstrap.min.css" rel="stylesheet" />_x000D_
<script src="https://code.jquery.com/jquery-1.11.1.min.js" type="text/javascript" ></script>_x000D_
<script src="//maxcdn.bootstrapcdn.com/bootstrap/3.3.7/js/bootstrap.min.js" type="text/javascript" ></script>_x000D_
_x000D_
<div class="panel-group" id="accordion">_x000D_
<div class="panel panel-default">_x000D_
<div class="panel-heading">_x000D_
<h4 class="panel-title">_x000D_
<a class="accordion-toggle" data-toggle="collapse" data-parent="#accordion" href="#collapseOne">_x000D_
Collapsible Group Item #1_x000D_
</a>_x000D_
</h4>_x000D_
</div>_x000D_
<div id="collapseOne" class="panel-collapse collapse in">_x000D_
<div class="panel-body">_x000D_
Anim pariatur cliche reprehenderit, enim eiusmod high life accusamus terry richardson ad squid. 3 wolf moon officia aute, non cupidatat skateboard dolor brunch. Food truck quinoa nesciunt laborum eiusmod. Brunch 3 wolf moon tempor, sunt aliqua put a bird on it squid single-origin coffee nulla assumenda shoreditch et. Nihil anim keffiyeh helvetica, craft beer labore wes anderson cred nesciunt sapiente ea proident. Ad vegan excepteur butcher vice lomo. Leggings occaecat craft beer farm-to-table, raw denim aesthetic synth nesciunt you probably haven't heard of them accusamus labore sustainable VHS._x000D_
</div>_x000D_
</div>_x000D_
</div>_x000D_
<div class="panel panel-default">_x000D_
<div class="panel-heading">_x000D_
<h4 class="panel-title">_x000D_
<a class="accordion-toggle collapsed" data-toggle="collapse" data-parent="#accordion" href="#collapseTwo">_x000D_
Collapsible Group Item #2_x000D_
</a>_x000D_
</h4>_x000D_
</div>_x000D_
<div id="collapseTwo" class="panel-collapse collapse">_x000D_
<div class="panel-body">_x000D_
Anim pariatur cliche reprehenderit, enim eiusmod high life accusamus terry richardson ad squid. 3 wolf moon officia aute, non cupidatat skateboard dolor brunch. Food truck quinoa nesciunt laborum eiusmod. Brunch 3 wolf moon tempor, sunt aliqua put a bird on it squid single-origin coffee nulla assumenda shoreditch et. Nihil anim keffiyeh helvetica, craft beer labore wes anderson cred nesciunt sapiente ea proident. Ad vegan excepteur butcher vice lomo. Leggings occaecat craft beer farm-to-table, raw denim aesthetic synth nesciunt you probably haven't heard of them accusamus labore sustainable VHS._x000D_
</div>_x000D_
</div>_x000D_
</div>_x000D_
<div class="panel panel-default">_x000D_
<div class="panel-heading">_x000D_
<h4 class="panel-title">_x000D_
<a class="accordion-toggle collapsed" data-toggle="collapse" data-parent="#accordion" href="#collapseThree">_x000D_
Collapsible Group Item #3_x000D_
</a>_x000D_
</h4>_x000D_
</div>_x000D_
<div id="collapseThree" class="panel-collapse collapse">_x000D_
<div class="panel-body">_x000D_
Anim pariatur cliche reprehenderit, enim eiusmod high life accusamus terry richardson ad squid. 3 wolf moon officia aute, non cupidatat skateboard dolor brunch. Food truck quinoa nesciunt laborum eiusmod. Brunch 3 wolf moon tempor, sunt aliqua put a bird on it squid single-origin coffee nulla assumenda shoreditch et. Nihil anim keffiyeh helvetica, craft beer labore wes anderson cred nesciunt sapiente ea proident. Ad vegan excepteur butcher vice lomo. Leggings occaecat craft beer farm-to-table, raw denim aesthetic synth nesciunt you probably haven't heard of them accusamus labore sustainable VHS._x000D_
</div>_x000D_
</div>_x000D_
</div>_x000D_
</div>
_x000D_
Visual effect:
You can use .shape
In: a = np.array([[1,2,3],[4,5,6]])
In: a.shape
Out: (2, 3)
In: a.shape[0] # x axis
Out: 2
In: a.shape[1] # y axis
Out: 3
Sounds to me like at least one of those tables has defined UserID
as a uniqueidentifier
, not an int
. Did you check the data in each table? What does SELECT TOP 1 UserID FROM
each table yield? An int
or a GUID
?
EDIT
I think you have built a procedure based on all tables that contain a column named UserID. I think you should not have included the aspnet_Membership
table in your script, since it's not really one of "your" tables.
If you meant to design your tables around the aspnet_Membership
database, then why are the rest of the columns int
when that table clearly uses a uniqueidentifier
for the UserID
column?
If you support IE, for versions of Internet Explorer 8 and above, this:
<meta http-equiv="X-UA-Compatible" content="IE=9; IE=8; IE=7" />
Forces the browser to render as that particular version's standards. It is not supported for IE7 and below.
If you separate with semi-colon, it sets compatibility levels for different versions. For example:
<meta http-equiv="X-UA-Compatible" content="IE=7; IE=9" />
Renders IE7 and IE8 as IE7, but IE9 as IE9. It allows for different levels of backwards compatibility. In real life, though, you should only chose one of the options:
<meta http-equiv="X-UA-Compatible" content="IE=8" />
This allows for much easier testing and maintenance. Although generally the more useful version of this is using Emulate:
<meta http-equiv="X-UA-Compatible" content="IE=EmulateIE8" />
For this:
<meta http-equiv="X-UA-Compatible" content="IE=Edge" />
It forces the browser the render at whatever the most recent version's standards are.
For more information, there is plenty to read about on MSDN,
Simplified only for 2 decimal places.
^\s*(?=.*[1-9])\d*(?:\.\d{1,2})?\s*$
Its Simple Use .Select function.
DataRow[] foundRows=table.Select("Date = '1/31/1979' or OrderID = 2", "CompanyName ASC");
DataTable dt = foundRows.CopyToDataTable();
And it's done......Happy Coding
Typescript fails in your case because it expects all the fields to be present. Use Record and Partial utility types to solve it.
Record<string, Partial<IPerson>>
interface IPerson {
firstName: string;
lastName: string;
}
var persons: Record<string, Partial<IPerson>> = {
"p1": { firstName: "F1", lastName: "L1" },
"p2": { firstName: "F2" }
};
Explanation.
Alternate.
If you wish to make last name optional you can append a ? Typescript will know that it's optional.
lastName?: string;
https://www.typescriptlang.org/docs/handbook/utility-types.html
Well,
if "exam" in "example": print "yes!"
Is this an improvement? No. You could even add more statements to the body of the if
-clause by separating them with a semicolon. I recommend against that though.
I want to serialize objects to strings, and back.
Different from the other answers, but the most straightforward way to do exactly that for most object types is XmlSerializer:
Subject subject = new Subject();
XmlSerializer serializer = new XmlSerializer(typeof(Subject));
using (Stream stream = new MemoryStream())
{
serializer.Serialize(stream, subject);
// do something with stream
Subject subject2 = (Subject)serializer.Deserialize(stream);
// do something with subject2
}
All your public properties of supported types will be serialized. Even some collection structures are supported, and will tunnel down to sub-object properties. You can control how the serialization works with attributes on your properties.
This does not work with all object types, some data types are not supported for serialization, but overall it is pretty powerful, and you don't have to worry about encoding.
You can use:
df.set_value('Row_index', 'Column_name', value)
set_valye
is ~100 times faster than .ix
method. It also better then use df['Row_index']['Column_name'] = value
.
But since set_value
is deprecated now so .iat
/.at
are good replacements.
For example if we have this data_frame
A B C
0 1 8 4
1 3 9 6
2 22 33 52
if we want to modify the value of the cell [0,"A"] we can do
df.iat[0,0] = 2
or df.at[0,'A'] = 2
If you are looking for range like function which works for float type, then here is a very good article.
def frange(start, stop, step=1.0):
''' "range()" like function which accept float type'''
i = start
while i < stop:
yield i
i += step
# Generate one element at a time.
# Preferred when you don't need all generated elements at the same time.
# This will save memory.
for i in frange(1.0, 2.0, 0.5):
print i # Use generated element.
# Generate all elements at once.
# Preferred when generated list ought to be small.
print list(frange(1.0, 10.0, 0.5))
Output:
1.0
1.5
[1.0, 1.5, 2.0, 2.5, 3.0, 3.5, 4.0, 4.5, 5.0, 5.5, 6.0, 6.5, 7.0, 7.5, 8.0, 8.5, 9.0, 9.5]
If you have OUTPUT parameters you can do
DECLARE @retval int
DECLARE @sSQL nvarchar(500);
DECLARE @ParmDefinition nvarchar(500);
DECLARE @tablename nvarchar(50)
SELECT @tablename = N'products'
SELECT @sSQL = N'SELECT @retvalOUT = MAX(ID) FROM ' + @tablename;
SET @ParmDefinition = N'@retvalOUT int OUTPUT';
EXEC sp_executesql @sSQL, @ParmDefinition, @retvalOUT=@retval OUTPUT;
SELECT @retval;
But if you don't, and can not modify the SP:
-- Assuming that your SP return 1 value
create table #temptable (ID int null)
insert into #temptable exec mysp 'Value1', 'Value2'
select * from #temptable
Not pretty, but works.
This could be leveraged to act like a "global variable", plus you can refer to the value from VBA and in a worksheet cell, and the assigned value will even persist after closing & re-opening the workbook!
To "declare" the name myVariable
and assign it a value of 123
:
ThisWorkbook.Names.Add "myVariable", 123
To retrieve the value (for example to display the value in a MsgBox
):
MsgBox [myVariable]
Alternatively, you could refer to the name with a string: (identical result as square brackets)
MsgBox Evaluate("myVariable")
To use the value on a worksheet just use it's name in your formula as-is:
=myVariable
In fact, you could even store function expressions: (sort of like in JavaScript)
(Admittedly, I can't actually think of a situation where this would be beneficial - but I don't use them in JS either.)
ThisWorkbook.Names.Add "myDay", "=if(isodd(day(today())),""on day"",""off day"")"
Square brackets are just a shortcut for the Evaluate method. I've heard that using them is considered messy or "hacky", but I've had no issues and their use in Excel is supported by Microsoft.
There is probably also a way use the Range
function to refer to these names, but I don't see any advantage so I didn't look very deeply into it.
Names.Add
method (Excel)Application.Evaluate
method (Excel)... glomming onto those who've already mentioned head works for some of us:
$ r head
head file*.txt
==> file1.txt <==
xxx
111
==> file2.txt <==
yyy
222
nyuk nyuk nyuk
==> file3.txt <==
zzz
$
My need is to read the first line; as noted, if you want more than 10 lines, you'll have to add options (head -9999, etc).
Sorry for posting a derivative comment; I don't have sufficient street cred to comment/add to someone's comment.
Due to the disadvantages described below, I would recommend following the accepted answer:
Use
npm install --save-dev [package_name]
then execute scripts with:$ npm run lint $ npm run build $ npm test
My original but not recommended answer follows.
Instead of using a global install, you could add the package to your devDependencies
(--save-dev
) and then run the binary from anywhere inside your project:
"$(npm bin)/<executable_name>" <arguments>...
In your case:
"$(npm bin)"/node.io --help
This engineer provided an npm-exec
alias as a shortcut. This engineer uses a shellscript called env.sh
. But I prefer to use $(npm bin)
directly, to avoid any extra file or setup.
Although it makes each call a little larger, it should just work, preventing:
sudo
Disadvantages:
$(npm bin)
won't work on Windows.npm bin
folder. (Install npm-run or npm-which to find them.)It seems a better solution is to place common tasks (such as building and minifying) in the "scripts" section of your package.json
, as Jason demonstrates above.
After Your Insert Statement you need to add this. And Make sure about the table name where data is inserting.You will get current row no where row affected just now by your insert statement.
IDENT_CURRENT('tableName')
The guidance on not using a thread abort is controversial. I think there is still a place for it but in exceptional circumstance. However you should always attempt to design around it and see it as a last resort.
Example;
You have a simple windows form application that connects to a blocking synchronous web service. Within which it executes a function on the web service within a Parallel loop.
CancellationTokenSource cts = new CancellationTokenSource();
ParallelOptions po = new ParallelOptions();
po.CancellationToken = cts.Token;
po.MaxDegreeOfParallelism = System.Environment.ProcessorCount;
Parallel.ForEach(iListOfItems, po, (item, loopState) =>
{
Thread.Sleep(120000); // pretend web service call
});
Say in this example, the blocking call takes 2 mins to complete. Now I set my MaxDegreeOfParallelism to say ProcessorCount. iListOfItems has 1000 items within it to process.
The user clicks the process button and the loop commences, we have 'up-to' 20 threads executing against 1000 items in the iListOfItems collection. Each iteration executes on its own thread. Each thread will utilise a foreground thread when created by Parallel.ForEach. This means regardless of the main application shutdown, the app domain will be kept alive until all threads have finished.
However the user needs to close the application for some reason, say they close the form. These 20 threads will continue to execute until all 1000 items are processed. This is not ideal in this scenario, as the application will not exit as the user expects and will continue to run behind the scenes, as can be seen by taking a look in task manger.
Say the user tries to rebuild the app again (VS 2010), it reports the exe is locked, then they would have to go into task manager to kill it or just wait until all 1000 items are processed.
I would not blame you for saying, but of course! I should be cancelling these threads using the CancellationTokenSource object and calling Cancel ... but there are some problems with this as of .net 4.0. Firstly this is still never going to result in a thread abort which would offer up an abort exception followed by thread termination, so the app domain will instead need to wait for the threads to finish normally, and this means waiting for the last blocking call, which would be the very last running iteration (thread) that ultimately gets to call po.CancellationToken.ThrowIfCancellationRequested
.
In the example this would mean the app domain could still stay alive for up to 2 mins, even though the form has been closed and cancel called.
Note that Calling Cancel on CancellationTokenSource does not throw an exception on the processing thread(s), which would indeed act to interrupt the blocking call similar to a thread abort and stop the execution. An exception is cached ready for when all the other threads (concurrent iterations) eventually finish and return, the exception is thrown in the initiating thread (where the loop is declared).
I chose not to use the Cancel option on a CancellationTokenSource object. This is wasteful and arguably violates the well known anti-patten of controlling the flow of the code by Exceptions.
Instead, it is arguably 'better' to implement a simple thread safe property i.e. Bool stopExecuting. Then within the loop, check the value of stopExecuting and if the value is set to true by the external influence, we can take an alternate path to close down gracefully. Since we should not call cancel, this precludes checking CancellationTokenSource.IsCancellationRequested which would otherwise be another option.
Something like the following if condition would be appropriate within the loop;
if (loopState.ShouldExitCurrentIteration || loopState.IsExceptional || stopExecuting) {loopState.Stop(); return;}
The iteration will now exit in a 'controlled' manner as well as terminating further iterations, but as I said, this does little for our issue of having to wait on the long running and blocking call(s) that are made within each iteration (parallel loop thread), since these have to complete before each thread can get to the option of checking if it should stop.
In summary, as the user closes the form, the 20 threads will be signaled to stop via stopExecuting, but they will only stop when they have finished executing their long running function call.
We can't do anything about the fact that the application domain will always stay alive and only be released when all foreground threads have completed. And this means there will be a delay associated with waiting for any blocking calls made within the loop to complete.
Only a true thread abort can interrupt the blocking call, and you must mitigate leaving the system in a unstable/undefined state the best you can in the aborted thread's exception handler which goes without question. Whether that's appropriate is a matter for the programmer to decide, based on what resource handles they chose to maintain and how easy it is to close them in a thread's finally block. You could register with a token to terminate on cancel as a semi workaround i.e.
CancellationTokenSource cts = new CancellationTokenSource();
ParallelOptions po = new ParallelOptions();
po.CancellationToken = cts.Token;
po.MaxDegreeOfParallelism = System.Environment.ProcessorCount;
Parallel.ForEach(iListOfItems, po, (item, loopState) =>
{
using (cts.Token.Register(Thread.CurrentThread.Abort))
{
Try
{
Thread.Sleep(120000); // pretend web service call
}
Catch(ThreadAbortException ex)
{
// log etc.
}
Finally
{
// clean up here
}
}
});
but this will still result in an exception in the declaring thread.
All things considered, interrupt blocking calls using the parallel.loop constructs could have been a method on the options, avoiding the use of more obscure parts of the library. But why there is no option to cancel and avoid throwing an exception in the declaring method strikes me as a possible oversight.
In my scenario i have make this via below code in nginx vhost configuration
server {
server_name dashboards.etilize.com;
location / {
proxy_pass http://demo.etilize.com/dashboards/;
proxy_set_header Host $http_host;
}}
$http_host will set URL in Header same as requested
Not sure why an answer with Linux commands would get so many up votes for a Windows related question, but anyway...
If phpinfo()
shows Curl as enabled, yet php -m
does NOT, it means that you probably have a php-cli.ini
too. run php -i
and see which ini file loaded. If it's different, diff it and reflect and differences in the CLI ini file. Then you should be good to go.
Btw download and use Git Bash instead of cmd.exe!
You can use savefig()
to export to an image file:
plt.savefig('filename.png')
In addition, you can specify the dpi
argument to some scalar value, for example:
plt.savefig('filename.png', dpi=300)
I have a spinner on my main.xml and its id is @+id/spinner1
this is what i write in my OnCreate function :
spinner1 = (Spinner)this.findViewById(R.id.spinner1);
final String[] groupes = new String[] {"A", "B", "C", "D", "E", "F", "G", "H"};
ArrayAdapter<CharSequence> featuresAdapter = new ArrayAdapter<CharSequence>(this, android.R.layout.simple_spinner_item, new ArrayList<CharSequence>());
featuresAdapter.setDropDownViewResource(android.R.layout.simple_spinner_dropdown_item);
spinner1.setAdapter(featuresAdapter);
for (String s : groupes) featuresAdapter.add(s);
spinner1.setOnItemSelectedListener(new OnItemSelectedListener() {
public void onItemSelected(AdapterView<?> arg0, View arg1, int position, long id) {
// Here go your instructions when the user chose something
Toast.makeText(getBaseContext(), groupes[position], 0).show();
}
public void onNothingSelected(AdapterView<?> arg0) { }
});
It doesn't need any implementation in the class.
simplest way is to use inspect.isclass
as posted in the most-voted answer.
the implementation details could be found at python2 inspect and python3 inspect.
for new-style class: isinstance(object, type)
for old-style class: isinstance(object, types.ClassType)
em, for old-style class, it is using types.ClassType
, here is the code from types.py:
class _C:
def _m(self): pass
ClassType = type(_C)
I had an strange problem and understood an unpleasant strange difference:
when I get an URL from user as an CharField and then and use it in html a tag by href, it adds that url to my url and that's not what I want. But when I do it by Textfield it passes just the URL that user entered.
look at these:
my website address: http://myweb.com
CharField entery: http://some-address.com
when clicking on it: http://myweb.comhttp://some-address.com
TextField entery: http://some-address.com
when clicking on it: http://some-address.com
I must mention that the URL is saved exactly the same in DB by two ways but I don't know why result is different when clicking on them
If you use Windows, probably the location is like this:
C:\User\YourUser\.android\debug.keystore
An Internet Information Services (IIS) worker process is a windows process (w3wp.exe) which runs Web applications, and is responsible for handling requests sent to a Web Server for a specific application pool.
It is the worker process for IIS. Each application pool creates at least one instance of w3wp.exe
and that is what actually processes requests in your application. It is not dangerous to attach to this, that is just a standard windows message.
I recompiled the package specification, even though the change was only in the package body. This resolved my issue
private void button1_Click(object sender, EventArgs e)
{
OpenFileDialog open = new OpenFileDialog();
if (open.ShowDialog() == DialogResult.OK)
pictureBox1.Image = Bitmap.FromFile(open.FileName);
}
Check out Pathname and in particular Pathname#exist?
.
File and its FileTest module are perhaps simpler/more direct, but I find Pathname
a nicer interface in general.
Just to add path to ruby.h file in my PATH
for example:
export PATH=$PATH:/usr/src/ruby-xxxxxx
If you have installed ToroiseGIT then just select "Revert..." menu item for parent folder popup-menu.
Your log indicates ClientAbortException, which occurs when your HTTP client drops the connection with the server and this happened before server could close the server socket Connection.
First go to Resource View (from menu: View --> Other Window --> Resource View). Then in Resource View navigate through resources, if any. If there is already a resource of Icon type, added by Visual Studio, then open and edit it. Otherwise right-click and select Add Resource, and then add a new icon.
Use the embedded image editor in order to edit the existing or new icon. Note that an icon can include several types (sizes), selected from Image menu.
Then compile your project and see the effect.
See: http://social.microsoft.com/Forums/en-US/vcgeneral/thread/87614e26-075c-4d5d-a45a-f462c79ab0a0
Here is an example of a cast and a convert:
using System;
public T CastObject<T>(object input) {
return (T) input;
}
public T ConvertObject<T>(object input) {
return (T) Convert.ChangeType(input, typeof(T));
}
Edit:
Some people in the comments say that this answer doesn't answer the question. But the line (T) Convert.ChangeType(input, typeof(T))
provides the solution. The Convert.ChangeType
method tries to convert any Object to the Type provided as the second argument.
For example:
Type intType = typeof(Int32);
object value1 = 1000.1;
// Variable value2 is now an int with a value of 1000, the compiler
// knows the exact type, it is safe to use and you will have autocomplete
int value2 = Convert.ChangeType(value1, intType);
// Variable value3 is now an int with a value of 1000, the compiler
// doesn't know the exact type so it will allow you to call any
// property or method on it, but will crash if it doesn't exist
dynamic value3 = Convert.ChangeType(value1, intType);
I've written the answer with generics, because I think it is a very likely sign of code smell when you want to cast a something
to a something else
without handling an actual type. With proper interfaces that shouldn't be necessary 99.9% of the times. There are perhaps a few edge cases when it comes to reflection that it might make sense, but I would recommend to avoid those cases.
Edit 2:
Few extra tips:
object
or dynamic
variable.This is a jQuery version of Moussawi7's answer.
$(function() {
$("textarea.auto-grow").on("input", function() {
var element = $(this)[0];
element.style.height = "5px";
element.style.height = (element.scrollHeight) + "px";
});
})
_x000D_
textarea {
resize: none;
overflow: auto;
width: 100%;
min-height: 50px;
max-height: 150px;
}
_x000D_
<script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/3.3.1/jquery.min.js"></script>
<textarea class="auto-grow"></textarea>
_x000D_
I will simply state what is wrong with the solutions provided by the question and why the errors.
Solution 1:
randomNum = minimum + (int)(Math.random()*maximum);
Problem: randomNum is assigned values numbers bigger than maximum.
Explanation: Suppose our minimum is 5, and your maximum is 10. Any value from Math.random()
greater than 0.6 will make the expression evaluate to 6 or greater, and adding 5 makes it greater than 10 (your maximum). The problem is you are multiplying the random number by the maximum (which generates a number almost as big as the maximum) and then adding the minimum. Unless the minimum is 1, it's not correct. You have to switch to, as mentioned in other answers
randomNum = minimum + (int)(Math.random()*(maximum-minimum+1))
The +1 is because Math.random()
will never return 1.0.
Solution 2:
Random rn = new Random();
int n = maximum - minimum + 1;
int i = rn.nextInt() % n;
randomNum = minimum + i;
Your problem here is that '%' may return a negative number if the first term is smaller than 0. Since rn.nextInt()
returns negative values with ~50% chance, you will also not get the expected result.
This, was, however, almost perfect. You just had to look a bit further down the Javadoc, nextInt(int n). With that method available, doing
Random rn = new Random();
int n = maximum - minimum + 1;
int i = rn.nextInt(n);
randomNum = minimum + i;
Would also return the desired result.
Use css to add a right margin to those particular elements. Generally I would build the control, then run it to see what the resulting html structure is like, then make the css alter just those elements.
Preferably you do this by setting the class. Add the CssClass="myrblclass"
attribute to your list declaration.
You can also add attributes to the items programmatically, which will come out the other side.
rblMyRadioButtonList.Items[x].Attributes.CssStyle.Add("margin-right:5px;")
This may be better for you since you can add that attribute for all but the last one.
In Android Studio on a Windows or Linux based machine use shortcut Ctrl + Shift + R to search and replace any string in the whole project.
First you'll need a service that you can inject into your controllers that has some idea of app authentication state. Persisting auth details with local storage is a decent way to approach it.
Next, you'll need to check the state of auth right before state changes. Since your app has some pages that need to be authenticated and others that don't, create a parent route that checks auth, and make all other pages that require the same be a child of that parent.
Finally, you'll need some way to tell if your currently logged in user can perform certain operations. This can be achieved by adding a 'can' function to your auth service. Can takes two parameters: - action - required - (ie 'manage_dashboards' or 'create_new_dashboard') - object - optional - object being operated on. For example, if you had a dashboard object, you may want to check to see if dashboard.ownerId === loggedInUser.id. (Of course, information passed from the client should never be trusted and you should always verify this on the server before writing it to your database).
angular.module('myApp', ['ngStorage']).config([
'$stateProvider',
function(
$stateProvider
) {
$stateProvider
.state('home', {...}) //not authed
.state('sign-up', {...}) //not authed
.state('login', {...}) //not authed
.state('authed', {...}) //authed, make all authed states children
.state('authed.dashboard', {...})
}])
.service('context', [
'$localStorage',
function(
$localStorage
) {
var _user = $localStorage.get('user');
return {
getUser: function() {
return _user;
},
authed: function() {
return (_user !== null);
},
// server should return some kind of token so the app
// can continue to load authenticated content without having to
// re-authenticate each time
login: function() {
return $http.post('/login.json').then(function(reply) {
if (reply.authenticated === true) {
$localStorage.set(_userKey, reply.user);
}
});
},
// this request should expire that token, rendering it useless
// for requests outside of this session
logout: function() {
return $http.post('logout.json').then(function(reply) {
if (reply.authenticated === true) {
$localStorage.set(_userKey, reply.user);
}
});
},
can: function(action, object) {
if (!this.authed()) {
return false;
}
var user = this.getUser();
if (user && user.type === 'admin') {
return true;
}
switch(action) {
case 'manage_dashboards':
return (user.type === 'manager');
}
return false;
}
}
}])
.controller('AuthCtrl', [
'context',
'$scope',
function(
context,
$scope
) {
$scope.$root.$on('$stateChangeStart', function(event, toState, toParams, fromState, fromParams) {
//only require auth if we're moving to another authed page
if (toState && toState.name.indexOf('authed') > -1) {
requireAuth();
}
});
function requireAuth() {
if (!context.authed()) {
$state.go('login');
}
}
}]
** DISCLAIMER: The above code is pseudo-code and comes with no guarantees **
I have resolved this problem by adding the reference to System.Web.
import {Component} from '@angular/core';
import {NgForm} from '@angular/forms';
@Component({
selector: 'example-app',
template: '<form #f="ngForm" (ngSubmit)="onSubmit(f)" novalidate>
<input name="first" ngModel required #first="ngModel">
<input name="last" ngModel>
<button>Submit</button>
</form>
<p>First name value: {{ first.value }}</p>
<p>First name valid: {{ first.valid }}</p>
<p>Form value: {{ f.value | json }}</p>
<p>Form valid: {{ f.valid }}</p>',
})
export class SimpleFormComp {
onSubmit(f: NgForm) {
// some stuff
f.resetForm();
}
}
Updated answer now that xyo.net has been bought and shut down.
appannie.com and similarweb.com are the best options now. Thanks @rinogo for the original suggestion!
Outdated answer:
Site is still buggy, but this is by far the best that I've found. Not sure if it's accurate, but at least they give you numbers that you can guess off of! They have numbers for Android, iOS (iPhone and iPad) and even Windows!
Supervised Learning is basically a technique in which the training data from which the machine learns is already labelled that is suppose a simple even odd number classifier where you have already classified the data during training . Therefore it uses "LABELLED" data.
Unsupervised learning on the contrary is a technique in which the machine by itself labels the data . Or you can say its the case when the machine learns by itself from scratch.
What? From 2010 and nobody mentioned Ruby has a fine for /in loop (it's just nobody uses it):
ar = [1,2,3,4,5,6]
for item in ar
puts item
end
this onclick={()=>{ f1(); f2() }}
helped me a lot if i want two different functions at the same time.
But now i want to create an audiorecorder with only one button. So if i click first i want to run the StartFunction f1()
and if i click again then i want to run
StopFunction f2()
.
How do you guys realize this?
The only issue I see are relative links and templates not being properly loaded because of this.
from the docs regarding HTML5 mode
Relative links
Be sure to check all relative links, images, scripts etc. You must either specify the url base in the head of your main html file (
<base href="/my-base">
) or you must use absolute urls (starting with/
) everywhere because relative urls will be resolved to absolute urls using the initial absolute url of the document, which is often different from the root of the application.
In your case you can add a forward slash /
in href
attributes ($location.path
does this automatically) and also to templateUrl
when configuring routes. This avoids routes like example.com/tags/another
and makes sure templates load properly.
Here's an example that works:
<div>
<a href="/">Home</a> |
<a href="/another">another</a> |
<a href="/tags/1">tags/1</a>
</div>
<div ng-view></div>
And
app.config(function($locationProvider, $routeProvider) {
$locationProvider.html5Mode(true);
$routeProvider
.when('/', {
templateUrl: '/partials/template1.html',
controller: 'ctrl1'
})
.when('/tags/:tagId', {
templateUrl: '/partials/template2.html',
controller: 'ctrl2'
})
.when('/another', {
templateUrl: '/partials/template1.html',
controller: 'ctrl1'
})
.otherwise({ redirectTo: '/' });
});
If using Chrome you will need to run this from a server.
The server directive has to be in the http directive. It should not be outside of it.
Incase if you need detailed information, refer this.
I'm unsure of the context on why this was needed, so this may not return enough information for you but this is what I was able to do:
if(typeof(ModelName).GetProperty("Name of Property") != null)
{
//whatevver you were wanting to do.
}
In my case I'm running through properties from a form submission and also have default values to use if the entry is left blank - so I needed to know if the there was a value to use - I prefixed all my default values in the model with Default so all I needed to do is check if there was a property that started with that.
I was parsing JSON from a REST API call and got this error. It turns out the API had become "fussier" (eg about order of parameters etc) and so was returning malformed results. Check that you are getting what you expect :)
Try WooCommerce Product Filter, plugin developed by Mihajlovicnenad.com. You can filter your products by any criteria. Also, it integrates with your Shop and archive pages perfectly. Here is a screenshot. And this is just one of the layouts, you can customize and make your own. Look at demo site. Thanks!
Type "msg /?" in the command prompt to get various ways of sending meessages to a user.
Type "net send /?" in the command prompt to get another variation of sending messages across.
I faced this problem
Forbidden You don't have permission to access /phpmyadmin/ on this server
Some help about this:
First check you installed a fresh wamp or replace the existing one. If it's fresh there is no problem, For done existing installation.
Follow these steps.
Okay,
TFS2008 Power Tools do not have a find-in-files function. "The Find in Source Control tools provide the ability to locate files and folders in source control by the item’s status or with a wildcard expression."
There is a Windows program with this functionality posted on CodePlex. I just installed and tested this and it works well.
wp_register_script('custom-js',WP_PLUGIN_URL.'/PLUGIN_NAME/js/custom.js',array(),NULL,true);
wp_enqueue_script('custom-js');
$wnm_custom = array( 'template_url' => get_bloginfo('template_url') );
wp_localize_script( 'custom-js', 'wnm_custom', $wnm_custom );
and in custom.js
alert(wnm_custom.template_url);
$("#selectsearch").change(function() {
var action = $(this).val() == "people" ? "user" : "content";
$("#search-form").attr("action", "/search/" + action);
});
This will make whole <li>
object as a link :
<li onclick="location.href='page.html';" style="cursor:pointer;">...</li>
I know it really late for another answer but I just wanted to share what helped me at the end. It will also load resources/files from the absolute path of the file system (not only the classpath's).
public class ResourceLoader {
public static URL getResource(String resource) {
final List<ClassLoader> classLoaders = new ArrayList<ClassLoader>();
classLoaders.add(Thread.currentThread().getContextClassLoader());
classLoaders.add(ResourceLoader.class.getClassLoader());
for (ClassLoader classLoader : classLoaders) {
final URL url = getResourceWith(classLoader, resource);
if (url != null) {
return url;
}
}
final URL systemResource = ClassLoader.getSystemResource(resource);
if (systemResource != null) {
return systemResource;
} else {
try {
return new File(resource).toURI().toURL();
} catch (MalformedURLException e) {
return null;
}
}
}
private static URL getResourceWith(ClassLoader classLoader, String resource) {
if (classLoader != null) {
return classLoader.getResource(resource);
}
return null;
}
}
Create the .js file inside the main directory not inside the sub folders such as public or src.
All depends on the app you're trying to build. Use Window
s if you're building a dialog based app. Use Page
s if you're building a navigation based app. UserControl
s will be useful regardless of the direction you go as you can use them in both Windows and Pages.
A good place to start exploring is here: http://windowsclient.net/learn
The URL structure you're referring to is called the REST endpoint, as opposed to the Web Site Endpoint.
Note: Since this answer was originally written, S3 has rolled out dualstack support on REST endpoints, using new hostnames, while leaving the existing hostnames in place. This is now integrated into the information provided, below.
If your bucket is really in the us-east-1 region of AWS -- which the S3 documentation formerly referred to as the "US Standard" region, but was subsequently officially renamed to the "U.S. East (N. Virginia) Region" -- then http://s3-us-east-1.amazonaws.com/bucket/
is not the correct form for that endpoint, even though it looks like it should be. The correct format for that region is either http://s3.amazonaws.com/bucket/
or http://s3-external-1.amazonaws.com/bucket/
.¹
The format you're using is applicable to all the other S3 regions, but not US Standard US East (N. Virginia) [us-east-1].
S3 now also has dual-stack endpoint hostnames for the REST endpoints, and unlike the original endpoint hostnames, the names of these have a consistent format across regions, for example s3.dualstack.us-east-1.amazonaws.com
. These endpoints support both IPv4 and IPv6 connectivity and DNS resolution, but are otherwise functionally equivalent to the existing REST endpoints.
If your permissions and configuration are set up such that the web site endpoint works, then the REST endpoint should work, too.
However... the two endpoints do not offer the same functionality.
Roughly speaking, the REST endpoint is better-suited for machine access and the web site endpoint is better suited for human access, since the web site endpoint offers friendly error messages, index documents, and redirects, while the REST endpoint doesn't. On the other hand, the REST endpoint offers HTTPS and support for signed URLs, while the web site endpoint doesn't.
Choose the correct type of endpoint (REST or web site) for your application:
http://docs.aws.amazon.com/AmazonS3/latest/dev/WebsiteEndpoints.html#WebsiteRestEndpointDiff
¹ s3-external-1.amazonaws.com
has been referred to as the "Northern Virginia endpoint," in contrast to the "Global endpoint" s3.amazonaws.com
. It was unofficially possible to get read-after-write consistency on new objects in this region if the "s3-external-1" hostname was used, because this would send you to a subset of possible physical endpoints that could provide that functionality. This behavior is now officially supported on this endpoint, so this is probably the better choice in many applications. Previously, s3-external-2
had been referred to as the "Pacific Northwest endpoint" for US-Standard, though it is now a CNAME in DNS for s3-external-1
so s3-external-2
appears to have no purpose except backwards-compatibility.
Hope this layout works, take it to the binary representation with an XOR:
66h = 102 decimal = 01100110 binary
FAh = 250 decimal = 11111010 binary
------------------------------------
10011100 binary <------ that's 9Ch/156 decimal
but the wiki I linked earlier will give you more details if needed...thats what it looks like they are doing in the screenshot you provided
let concurrentQueue = dispatch_queue_create("com.swift3.imageQueue", DISPATCH_QUEUE_CONCURRENT) //Swift 2 version
let concurrentQueue = DispatchQueue(label:"com.swift3.imageQueue", attributes: .concurrent) //Swift 3 version
I re-worked your code in Xcode 8, Swift 3 and the changes are marked in contrast to your Swift 2 version.
This approach worked for me:
adb kill-server
adb start-server
Device Manager, "View" menu, "Devices by Connection":
Have a look at using something like
Converts the string representation of the name or numeric value of one or more enumerated constants to an equivalent enumerated object. A parameter specifies whether the operation is case-sensitive. The return value indicates whether the conversion succeeded.
or
Converts the string representation of the name or numeric value of one or more enumerated constants to an equivalent enumerated object.
NSCharacterSet *charSet = NSCharacterSet.newlineCharacterSet;
NSString *formatted = [[unformatted componentsSeparatedByCharactersInSet:charSet] componentsJoinedByString:@"\n"];
This is the more powerful grouping / rollup syntax you'll want to use in SQL Server 2008+. Always useful to specify the version you're using so we don't have to guess.
SELECT
[Type] = COALESCE([Type], 'Total'),
[Total Sales] = SUM([Total Sales])
FROM dbo.Before
GROUP BY GROUPING SETS(([Type]),());
Craig Freedman wrote a great blog post introducing GROUPING SETS
.
If your date is in the format of a string use the explode function
array explode ( string $delimiter , string $string [, int $limit ] )
//In the case of your code
$length = strrpos($oldDate," ");
$newDate = explode( "-" , substr($oldDate,$length));
$output = $newDate[2]."/".$newDate[1]."/".$newDate[0];
Hope the above works now
Here is a short example, the C++ way using rdbuf
. I got this from the web. I can't find my original source on this:
#include <fstream>
#include <iostream>
int main ()
{
std::ifstream f1 ("C:\\me.txt",std::fstream::binary);
std::ofstream f2 ("C:\\me2.doc",std::fstream::trunc|std::fstream::binary);
f2<<f1.rdbuf();
return 0;
}
In vue-cli version 3:
There are the three options for .env files:
Either you can use .env
or:
.env.test
.env.development
.env.production
You can use custom .env
variables by using the prefix regex as /^/
instead of /^VUE_APP_/
in /node_modules/@vue/cli-service/lib/util/resolveClientEnv.js:prefixRE
This is certainly not recommended for the sake of developing an open source app in different modes like test, development, and production of .env
files. Because every time you npm install ..
, it will be overridden.
using System.Configuration;
/// <summary>
/// For read one setting
/// </summary>
/// <param name="key">Key correspondent a your setting</param>
/// <returns>Return the String contains the value to setting</returns>
public string ReadSetting(string key)
{
var appSettings = ConfigurationManager.AppSettings;
return appSettings[key] ?? string.Empty;
}
/// <summary>
/// Read all settings for output Dictionary<string,string>
/// </summary>
/// <returns>Return the Dictionary<string,string> contains all settings</returns>
public Dictionary<string, string> ReadAllSettings()
{
var result = new Dictionary<string, string>();
foreach (var key in ConfigurationManager.AppSettings.AllKeys)
result.Add(key, ConfigurationManager.AppSettings[key]);
return result;
}
Even array2.extend(array1)
will work.
This might be a bug of the recent anaconda. What works for me:
step1: vim /anaconda/bin/activate
, it shows:
#!/bin/sh
_CONDA_ROOT="/anaconda"
# Copyright (C) 2012 Anaconda, Inc
# SPDX-License-Identifier: BSD-3-Clause
\. "$_CONDA_ROOT/etc/profile.d/conda.sh" || return $?
conda activate "$@"
step2: comment out the last line: # conda activate "$@"
coalesce
is supported in both Oracle and SQL Server and serves essentially the same function as nvl
and isnull
. (There are some important differences, coalesce
can take an arbitrary number of arguments, and returns the first non-null one. The return type for isnull
matches the type of the first argument, that is not true for coalesce
, at least on SQL Server.)
Safe and memory-saving:
with open("out1.txt", "w") as fw, open("in.txt","r") as fr:
fw.writelines(l for l in fr if "tests/file/myword" in l)
It doesn't create temporary lists (what readline
and []
would do, which is a non-starter if the file is huge), all is done with generator comprehensions, and using with
blocks ensure that the files are closed on exit.
I'm not sure what you're trying to do, but here's something to consider: c();
won't do anything. c
is an instance of the class checkbox
and not a method to be called. So consider this:
public class FirstWindow extends JFrame { public FirstWindow() { checkbox c = new checkbox(); c.yourMethod(yourParameters); // call the method you made in checkbox } } public class checkbox extends JFrame { public checkbox(yourParameters) { // this is the constructor method used to initialize instance variables } public void yourMethod() // doesn't have to be void { // put your code here } }
Try simply to reset last commit using --soft
flag
git reset --soft HEAD~1
Note :
For Windows, wrap the HEAD parts in quotes like git reset --soft "HEAD~1"
In other words, you want to pipe stdout into one filter (tee bbb.out
) and stderr into another filter (tee ccc.out
). There is no standard way to pipe anything other than stdout into another command, but you can work around that by juggling file descriptors.
{ { ./aaa.sh | tee bbb.out; } 2>&1 1>&3 | tee ccc.out; } 3>&1 1>&2
See also How to grep standard error stream (stderr)? and When would you use an additional file descriptor?
In bash (and ksh and zsh), but not in other POSIX shells such as dash, you can use process substitution:
./aaa.sh > >(tee bbb.out) 2> >(tee ccc.out)
Beware that in bash, this command returns as soon as ./aaa.sh
finishes, even if the tee
commands are still executed (ksh and zsh do wait for the subprocesses). This may be a problem if you do something like ./aaa.sh > >(tee bbb.out) 2> >(tee ccc.out); process_logs bbb.out ccc.out
. In that case, use file descriptor juggling or ksh/zsh instead.
This can also arise in connection with a bug in certain versions of Percona Toolkit's online-schema-change tool. To mutate a large table, pt-osc first creates a duplicate table and copies all the records into it. Under some circumstances, some versions of pt-osc 2.2.x will try to give the constraints on the new table the same names as the constraints on the old table.
A fix was released in 2.3.0.
See https://bugs.launchpad.net/percona-toolkit/+bug/1498128 for more details.
I've used Wiredesignz's MY_Language class with great success.
I've just published it on github, as I can't seem to find a trace of it anywhere.
https://github.com/meigwilym/CI_Language
My only changes are to rename the class to CI_Lang, in accordance with the new v2 changes.
This is not mentioned in you post but I suspect you are initiating an SSL connection from the browser to Apache, where VirtualHosts are configured, and Apache does a revese proxy to your Tomcat.
There is a serious bug in (some versions ?) of IE that sends the 'wrong' host information in an SSL connection (see EDIT below) and confuses the Apache VirtualHosts. In short the server name presented is the one of the reverse DNS resolution of the IP, not the one in the URL.
The workaround is to have one IP address per SSL virtual hosts/server name. Is short, you must end up with something like
1 server name == 1 IP address == 1 certificate == 1 Apache Virtual Host
EDIT
Though the conclusion is correct, the identification of the problem is better described here http://en.wikipedia.org/wiki/Server_Name_Indication
This will work for an environment variable that is machine setting. For Users, just change to User instead.
String EnvironmentPath = System.Environment
.GetEnvironmentVariable("Variable_Name", EnvironmentVariableTarget.Machine);
That should work. Better if you pass a function to val
:
$('#replyBox').val(function(i, text) {
return text + quote;
});
This way you avoid searching the element and calling val
twice.
There's an excellent plugin called ApplySyntax (previously DetectSyntax) that provides certain other niceties for file-syntax matching. allows regex expressions etc.
Take std::numeric_limits<T>::max()
: for whatever reason, this is a method. constexpr
would be beneficial here.
Another example: you want to declare a C-array (or a std::array
) that is as big as another array. The way to do this at the moment is like so:
int x[10];
int y[sizeof x / sizeof x[0]];
But wouldn’t it be better to be able to write:
int y[size_of(x)];
Thanks to constexpr
, you can:
template <typename T, size_t N>
constexpr size_t size_of(T (&)[N]) {
return N;
}
A tidyverse way to count the number of nulls in every column of a dataframe:
library(tidyverse)
library(purrr)
df %>%
map_df(function(x) sum(is.na(x))) %>%
gather(feature, num_nulls) %>%
print(n = 100)
There is no limit. It only depends on your free memory and system maximum file size. But that doesn't mean you shouldn't take precautionary measure in tackling memory usage in your database. Always create a script that can delete rows that are out of use or that will keep total no of rows within a particular figure, say a thousand.
#!/bin/bash
goclean() {
local pkg=$1; shift || return 1
local ost
local cnt
local scr
# Clean removes object files from package source directories (ignore error)
go clean -i $pkg &>/dev/null
# Set local variables
[[ "$(uname -m)" == "x86_64" ]] \
&& ost="$(uname)";ost="${ost,,}_amd64" \
&& cnt="${pkg//[^\/]}"
# Delete the source directory and compiled package directory(ies)
if (("${#cnt}" == "2")); then
rm -rf "${GOPATH%%:*}/src/${pkg%/*}"
rm -rf "${GOPATH%%:*}/pkg/${ost}/${pkg%/*}"
elif (("${#cnt}" > "2")); then
rm -rf "${GOPATH%%:*}/src/${pkg%/*/*}"
rm -rf "${GOPATH%%:*}/pkg/${ost}/${pkg%/*/*}"
fi
# Reload the current shell
source ~/.bashrc
}
Usage:
# Either launch a new terminal and copy `goclean` into the current shell process,
# or create a shell script and add it to the PATH to enable command invocation with bash.
goclean github.com/your-username/your-repository
In the .service file under the [Unit] section:
[Unit]
Description=My Website
After=syslog.target network.target mongodb.service
The important part is the mongodb.service
The manpage describes it however due to formatting it's not as clear on first sight
I had the same issue, but mine was because of wrong casing in path:
// Wrong - uppercase C in /pathCoordinate/
./path/pathCoordinate/pathCoordinateForm.component
// Correct - lowercase c in /pathcoordinate/
./path/pathcoordinate/pathCoordinateForm.component
Reflection.
using System.Reflection;
Vendor vendor = new Vendor();
object tag = vendor.Tag;
Type tagt = tag.GetType();
FieldInfo field = tagt.GetField("test");
string value = field.GetValue(tag);
Use the power wisely. Don't forget error checking. :)
Short answer: Use the change
event. Here's a couple of practical examples. Since I misread the question, I'll include jQuery examples along with plain JavaScript. You're not gaining much, if anything, by using jQuery though.
Using querySelector
.
var checkbox = document.querySelector("input[name=checkbox]");
checkbox.addEventListener('change', function() {
if (this.checked) {
console.log("Checkbox is checked..");
} else {
console.log("Checkbox is not checked..");
}
});
_x000D_
<input type="checkbox" name="checkbox" />
_x000D_
$('input[name=checkbox]').change(function() {
if ($(this).is(':checked')) {
console.log("Checkbox is checked..")
} else {
console.log("Checkbox is not checked..")
}
});
_x000D_
<script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/3.3.1/jquery.min.js"></script>
<input type="checkbox" name="checkbox" />
_x000D_
Here's an example of a list of checkboxes. To select multiple elements we use querySelectorAll
instead of querySelector
. Then use Array.filter
and Array.map
to extract checked values.
// Select all checkboxes with the name 'settings' using querySelectorAll.
var checkboxes = document.querySelectorAll("input[type=checkbox][name=settings]");
let enabledSettings = []
/*
For IE11 support, replace arrow functions with normal functions and
use a polyfill for Array.forEach:
https://vanillajstoolkit.com/polyfills/arrayforeach/
*/
// Use Array.forEach to add an event listener to each checkbox.
checkboxes.forEach(function(checkbox) {
checkbox.addEventListener('change', function() {
enabledSettings =
Array.from(checkboxes) // Convert checkboxes to an array to use filter and map.
.filter(i => i.checked) // Use Array.filter to remove unchecked checkboxes.
.map(i => i.value) // Use Array.map to extract only the checkbox values from the array of objects.
console.log(enabledSettings)
})
});
_x000D_
<label>
<input type="checkbox" name="settings" value="forcefield">
Enable forcefield
</label>
<label>
<input type="checkbox" name="settings" value="invisibilitycloak">
Enable invisibility cloak
</label>
<label>
<input type="checkbox" name="settings" value="warpspeed">
Enable warp speed
</label>
_x000D_
let checkboxes = $("input[type=checkbox][name=settings]")
let enabledSettings = [];
// Attach a change event handler to the checkboxes.
checkboxes.change(function() {
enabledSettings = checkboxes
.filter(":checked") // Filter out unchecked boxes.
.map(function() { // Extract values using jQuery map.
return this.value;
})
.get() // Get array.
console.log(enabledSettings);
});
_x000D_
<script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/3.3.1/jquery.min.js"></script>
<label>
<input type="checkbox" name="settings" value="forcefield">
Enable forcefield
</label>
<label>
<input type="checkbox" name="settings" value="invisibilitycloak">
Enable invisibility cloak
</label>
<label>
<input type="checkbox" name="settings" value="warpspeed">
Enable warp speed
</label>
_x000D_