This is what I do to retain type info:
class Helper {
public static createRaw<T>(TCreator: { new (): T; }, data: any): T
{
return Object.assign(new TCreator(), data);
}
public static create<T>(TCreator: { new (): T; }, data: T): T
{
return this.createRaw(TCreator, data);
}
}
...
it('create helper', () => {
class A {
public data: string;
}
class B {
public data: string;
public getData(): string {
return this.data;
}
}
var str = "foobar";
var a1 = Helper.create<A>(A, {data: str});
expect(a1 instanceof A).toBeTruthy();
expect(a1.data).toBe(str);
var a2 = Helper.create(A, {data: str});
expect(a2 instanceof A).toBeTruthy();
expect(a2.data).toBe(str);
var b1 = Helper.createRaw(B, {data: str});
expect(b1 instanceof B).toBeTruthy();
expect(b1.data).toBe(str);
expect(b1.getData()).toBe(str);
});
can you try
<p:column width="20">
I find that no one mentions this difference:
__getattribute__
has a default implementation, but __getattr__
does not.
class A:
pass
a = A()
a.__getattr__ # error
a.__getattribute__ # return a method-wrapper
This has a clear meaning: since __getattribute__
has a default implementation, while __getattr__
not, clearly python encourages users to implement __getattr__
.
I think the problem could be in __init__
if there is more code than shown?
__del__
will be called even when __init__
has not been executed properly or threw an exception.
Quoting Jacob Hallen:
The proper use of
__slots__
is to save space in objects. Instead of having a dynamic dict that allows adding attributes to objects at anytime, there is a static structure which does not allow additions after creation. [This use of__slots__
eliminates the overhead of one dict for every object.] While this is sometimes a useful optimization, it would be completely unnecessary if the Python interpreter was dynamic enough so that it would only require the dict when there actually were additions to the object.Unfortunately there is a side effect to slots. They change the behavior of the objects that have slots in a way that can be abused by control freaks and static typing weenies. This is bad, because the control freaks should be abusing the metaclasses and the static typing weenies should be abusing decorators, since in Python, there should be only one obvious way of doing something.
Making CPython smart enough to handle saving space without
__slots__
is a major undertaking, which is probably why it is not on the list of changes for P3k (yet).
>>> from datetime import date
>>>
>>> repr(date.today()) # calls date.today().__repr__()
'datetime.date(2009, 1, 16)'
>>> eval(_) # _ is the output of the last command
datetime.date(2009, 1, 16)
The output is a string that can be parsed by the python interpreter and results in an equal object.
If that's not possible, it should return a string in the form of <...some useful description...>
.
The "simple" bidirectional dictionary solution proposed here is complex and may be be difficult to understand, maintain or extend. Also the original question asked for "the key for a value", but clearly there could be multiple keys (I've since edited the question). The whole approach is rather suspicious.
Software changes. Writing code that is easy to maintain should be given priority other "clever" complex workarounds. The way to get keys back from values in a dictionary is to loop. A dictionary isn't designed to be bidirectional.
I usually do it this way...
#include <string>
#include <vector>
int main( int argc, char* argv[] )
{
std::vector<char> vec;
//... do something with vec
std::string str(vec.begin(), vec.end());
//... do something with str
return 0;
}
If you want to check a current language, use the answer of @Sarpe (@Thorbear):
val language = ConfigurationCompat.getLocales(Resources.getSystem().configuration)?.get(0)?.language
// Check here the language.
val format = if (language == "ru") "d MMMM yyyy ?." else "d MMMM yyyy"
val longDateFormat = SimpleDateFormat(format, Locale.getDefault())
I know, I am tooooo late to post an answer, but hoping that it might help someone. Plus, I just solved this issue I had with my tests. This is what I had in my test:
My test class
@RunWith(SpringJUnit4ClassRunner.class)
@ContextConfiguration(locations = { "path-to-context" })
@Transactional
public class MyIntegrationTest
Context xml
<bean id="dataSource" class="org.apache.commons.dbcp.BasicDataSource">
<property name="driverClassName" value="${jdbc.driverClassName}" />
<property name="url" value="${jdbc.url}" />
<property name="username" value="${jdbc.username}" />
<property name="password" value="${jdbc.password}" />
</bean>
I still had the problem that, the database was not being cleaned up automatically.
Issue was resolved when I added following property to BasicDataSource
<property name="defaultAutoCommit" value="false" />
Hope it helps.
It doesn't matter is your app Boot or just raw Spring. There is just enough to inject org.springframework.core.env.Environment
to your bean.
@Autowired
private Environment environment;
....
this.environment.getActiveProfiles();
Just type below command in terminal:
rm /Applications/MAMP/db/mysql56/ib_logfile*
and then restart the MAMP.
It works back perfectly.
The following commands resolved my issue:
npm config set proxy http://yourproxyurl.com:8080 (you need to enter your or your company proxy URL and 8080 should be replaced by your proxy port)
npm config set https-proxy http://yourproxyurl.com:8080
I just made a simple test to see how instanceOf performance is comparing to a simple s.equals() call to a string object with only one letter.
in a 10.000.000 loop the instanceOf gave me 63-96ms, and the string equals gave me 106-230ms
I used java jvm 6.
So in my simple test is faster to do a instanceOf instead of a one character string comparison.
using Integer's .equals() instead of string's gave me the same result, only when I used the == i was faster than instanceOf by 20ms (in a 10.000.000 loop)
You could use the ArrayUtils.subarray in apache commons. Not perfect but a bit more intuitive than System.arraycopy.
The downside is that it does introduce another dependency into your code.
(function ($) {
$( window ).load(function() {
$('.navbar a').unbind('click');
$('.navbar a').click(function () {
//DO SOMETHING
return false;
});
});
})(jQuery);
I find this way easier to implement. And it has the advantage that you js. Is not inside your html but in a different file. I think that without the unbind. Both events are still active. Not sure. But in a way you only need this one event
In Chrome, request with 'Content-Type:application/json' shows as Request PayedLoad and sends data as json object.
But request with 'Content-Type:application/x-www-form-urlencoded' shows Form Data and sends data as Key:Value Pair, so if you have array of object in one key it flats that key's value:
{ Id: 1,
name:'john',
phones:[{title:'home',number:111111,...},
{title:'office',number:22222,...}]
}
sends
{ Id: 1,
name:'john',
phones:[object object]
phones:[object object]
}
For me, classpath entry in .classpath
file isn't pointing to the right location. After modifying it to <classpathentry kind="con" path="org.eclipse.jdt.launching.JRE_CONTAINER/org.eclipse.jdt.internal.debug.ui.launcher.StandardVMType/JavaSE-1.8"/>
fixed the issue
Generally speaking, for boolean
or bit
data types, you would use 0
or 1
like so:
UPDATE tbl SET bitCol = 1 WHERE bitCol = 0
See also:
I find this works better:
SELECT type, *
FROM sys.objects
WHERE OBJECT_DEFINITION(object_id) LIKE '%' + @ObjectName + '%'
AND type IN ('V')
ORDER BY name
Filtering VIEW_DEFINTION
inside INFORMATION_SCHEMA.VIEWS
is giving me quite a few false positives.
The most modern answer, taken from Valloric's comment above:
git mv old/submod new/submod
git status
.)git commit
and you're good to go!Done!
If all your looking for is the syntax, then this may help:
Since image is deprecated, you should use varbinary.
per Microsoft (thanks for the link @Christopher)
ntext , text, and image data types will be removed in a future version of Microsoft SQL Server. Avoid using these data types in new development work, and plan to modify applications that currently use them. Use nvarchar(max), varchar(max), and varbinary(max) instead.
Fixed and variable-length data types for storing large non-Unicode and Unicode character and binary data. Unicode data uses the UNICODE UCS-2 character set.
/var/lib/postgresql/[version]/data/
At least in Gentoo Linux and Ubuntu 14.04 by default.
You can find postgresql.conf
and look at param data_directory
. If it is commented then database directory is the same as this config file directory.
So for me the problem was that I had created my GitLab account via linking my GitHub account to it. This meant that no password formally existed for the account as it was created via hotlink between GitHub and GitLab. I fixed it by going to GitLab Settings -> Password -> and writing the same password as my GitHub account had.
An attempt to easy_install
indicates a problem with their listing in the Python Package Index, which pip searches.
easy_install scipy
Searching for scipy
Reading http://pypi.python.org/simple/scipy/
Reading http://www.scipy.org
Reading http://sourceforge.net/project/showfiles.php?group_id=27747&package_id=19531
Reading http://new.scipy.org/Wiki/Download
All is not lost, however; pip
can install from Subversion (SVN), Git, Mercurial, and Bazaar repositories. SciPy uses SVN:
pip install svn+http://svn.scipy.org/svn/scipy/trunk/#egg=scipy
Update (12-2012):
pip install git+https://github.com/scipy/scipy.git
Since NumPy is a dependency, it should be installed as well.
androidx.localbroadcastmanager
is being deprecated in version 1.1.0
Reason
LocalBroadcastManager
is an application-wide event bus and embraces layer violations in your app; any component may listen to events from any other component.
It inherits unnecessary use-case limitations of system BroadcastManager; developers have to use Intent even though objects live in only one process and never leave it. For this same reason, it doesn’t follow feature-wise BroadcastManager .
These add up to a confusing developer experience.
Replacement
You can replace usage of LocalBroadcastManager
with other implementations of the observable pattern. Depending on your use case, suitable options may be LiveData
or reactive streams.
Advantage of LiveData
You can extend a LiveData
object using the singleton pattern to wrap system services so that they can be shared in your app. The LiveData
object connects to the system service once, and then any observer that needs the resource can just watch the LiveData
object.
public class MyFragment extends Fragment {
@Override
public void onActivityCreated(Bundle savedInstanceState) {
super.onActivityCreated(savedInstanceState);
LiveData<BigDecimal> myPriceListener = ...;
myPriceListener.observe(this, price -> {
// Update the UI.
});
}
}
The observe()
method passes the fragment, which is an instance of LifecycleOwner
, as the first argument. Doing so denotes that this observer is bound to the Lifecycle
object associated with the owner, meaning:
If the Lifecycle object is not in an active state, then the observer isn't called even if the value changes.
After the Lifecycle object is destroyed, the observer is automatically removed
The fact that LiveData
objects are lifecycle-aware means that you can share them between multiple activities, fragments, and services.
I am amazed how I've not been able to find a clear example of how to authenticate an user right from the login screen down to using the Authorize attribute over my ApiController methods after several hours of Googling.
That's because you are getting confused about these two concepts:
Authentication is the mechanism whereby systems may securely identify their users. Authentication systems provide an answers to the questions:
Authorization is the mechanism by which a system determines what level of access a particular authenticated user should have to secured resources controlled by the system. For example, a database management system might be designed so as to provide certain specified individuals with the ability to retrieve information from a database but not the ability to change data stored in the datbase, while giving other individuals the ability to change data. Authorization systems provide answers to the questions:
The Authorize
attribute in MVC is used to apply access rules, for example:
[System.Web.Http.Authorize(Roles = "Admin, Super User")]
public ActionResult AdministratorsOnly()
{
return View();
}
The above rule will allow only users in the Admin and Super User roles to access the method
These rules can also be set in the web.config file, using the location
element. Example:
<location path="Home/AdministratorsOnly">
<system.web>
<authorization>
<allow roles="Administrators"/>
<deny users="*"/>
</authorization>
</system.web>
</location>
However, before those authorization rules are executed, you have to be authenticated to the current web site.
Even though these explain how to handle unauthorized requests, these do not demonstrate clearly something like a LoginController or something like that to ask for user credentials and validate them.
From here, we could split the problem in two:
Authenticate users when consuming the Web API services within the same Web application
This would be the simplest approach, because you would rely on the Authentication in ASP.Net
This is a simple example:
<authentication mode="Forms">
<forms
protection="All"
slidingExpiration="true"
loginUrl="account/login"
cookieless="UseCookies"
enableCrossAppRedirects="false"
name="cookieName"
/>
</authentication>
Users will be redirected to the account/login route, there you would render custom controls to ask for user credentials and then you would set the authentication cookie using:
if (ModelState.IsValid)
{
if (Membership.ValidateUser(model.UserName, model.Password))
{
FormsAuthentication.SetAuthCookie(model.UserName, model.RememberMe);
return RedirectToAction("Index", "Home");
}
else
{
ModelState.AddModelError("", "The user name or password provided is incorrect.");
}
}
// If we got this far, something failed, redisplay form
return View(model);
Cross - platform authentication
This case would be when you are only exposing Web API services within the Web application therefore, you would have another client consuming the services, the client could be another Web application or any .Net application (Win Forms, WPF, console, Windows service, etc)
For example assume that you will be consuming the Web API service from another web application on the same network domain (within an intranet), in this case you could rely on the Windows authentication provided by ASP.Net.
<authentication mode="Windows" />
If your services are exposed on the Internet, then you would need to pass the authenticated tokens to each Web API service.
For more info, take a loot to the following articles:
From source? From the repos? The easiest way is to use the repos: sudo yum install git
should do it. It may first be necessary to set up an additional repo such as EPEL first if git is not provided by the main repos.
If you want to install from source, you can try these instructions. If you have yum-utils
installed it's actually easier than that, too**:
sudo yum build-dep git
wget http://kernel.org/pub/software/scm/git/<latest-git-source>.tar.gz
tar -xvjf <latest-git>.tar.gz
cd <git>
make (possibly a ./configure before this)
sudo make install
**Substitute the portions enclosed in <>
with the paths you need. Exact procedure may vary slightly as I have not compiled git from source, personally (there may be a configure script, for example). If you have no idea what I'm talking about, then you may want to just install from the repo as per my first suggestion.
I just found a solution to the problem here:
http://willcodeforcoffee.com/2007/01/31/cakephp-error-500-too-many-redirects/
The .htaccess file in webroot should look like:
<IfModule mod_rewrite.c>
RewriteEngine On
RewriteBase /
RewriteCond %{REQUEST_FILENAME} !-d
RewriteCond %{REQUEST_FILENAME} !-f
RewriteRule ^(.*)$ index.php?url=$1 [QSA,L]
</IfModule>
instead of this:
<IfModule mod_rewrite.c>
RewriteEngine On
RewriteBase /projectname
RewriteCond %{REQUEST_FILENAME} !-d
RewriteCond %{REQUEST_FILENAME} !-f
RewriteRule ^(.*)$ index.php?url=$1 [QSA,L]
</IfModule>
This can be done by creating a .pgpass
file in the home directory of the (Linux) User.
.pgpass
file format:
<databaseip>:<port>:<databasename>:<dbusername>:<password>
You can also use wild card *
in place of details.
Say I wanted to run tmp.sql
without prompting for a password.
With the following code you can in *.sh file
echo "192.168.1.1:*:*:postgres:postgrespwd" > $HOME/.pgpass
echo "` chmod 0600 $HOME/.pgpass `"
echo " ` psql -h 192.168.1.1 -p 5432 -U postgres postgres -f tmp.sql `
select * from all_constraints
where owner = '<NAME>'
and constraint_name = 'SYS_C00381400'
/
Like all data dictionary views, this a USER_CONSTRAINTS view if you just want to check your current schema and a DBA_CONSTRAINTS view for administration users.
The construction of the constraint name indicates a system generated constraint name. For instance, if we specify NOT NULL in a table declaration. Or indeed a primary or unique key. For example:
SQL> create table t23 (id number not null primary key)
2 /
Table created.
SQL> select constraint_name, constraint_type
2 from user_constraints
3 where table_name = 'T23'
4 /
CONSTRAINT_NAME C
------------------------------ -
SYS_C00935190 C
SYS_C00935191 P
SQL>
'C'
for check, 'P'
for primary.
Generally it's a good idea to give relational constraints an explicit name. For instance, if the database creates an index for the primary key (which it will do if that column is not already indexed) it will use the constraint name oo name the index. You don't want a database full of indexes named like SYS_C00935191
.
To be honest most people don't bother naming NOT NULL constraints.
To select top n rows updated recently
SELECT *
FROM (
SELECT *
FROM table
ORDER BY UpdateDateTime DESC
)
WHERE ROWNUM < 101;
I managed this without adding markup, but instead using li:before. This obviously has all the limitations of :before
(no old IE support), but it seems to work with IE8, Firefox and Chrome after some very limited testing. It's working in our controller environment, wondering if anyone could check this. The bullet style is also limited by what's in unicode.
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<html>
<head>
<style type="text/css">
li {
list-style: none;
}
li:before {
/* For a round bullet */
content:'\2022';
/* For a square bullet */
/*content:'\25A0';*/
display: block;
position: relative;
max-width: 0px;
max-height: 0px;
left: -10px;
top: -0px;
color: green;
font-size: 20px;
}
</style>
</head>
<body>
<ul>
<li>foo</li>
<li>bar</li>
</ul>
</body>
</html>
I had the same problem. The error list window has 2 dropdowns "Show items contained by" and "Show issues generated". These names are visible after hovering over the dropdown. The "Show issues generated" dropdown was set to "Build + IntelliSense" and after changing to "Build Only" the errors appeared on the list.
Rene's answer about the relationship between exports
and module.exports
is quite clear, it's all about javascript references. Just want to add that:
We see this in many node modules:
var app = exports = module.exports = {};
This will make sure that even if we changed module.exports, we can still use exports by making those two variables point to the same object.
"\n" is just a line feed (Unicode U+000A). This is typically the Unix line separator.
"\r\n" is a carriage return (Unicode U+000D) followed by a line feed (Unicode U+000A). This is typically the Windows line separator.
Launch4j works on both Windows and Linux/Mac. But if you're running Linux/Mac, there is a way to embed your jar into a shell script that performs the autolaunch for you, so you have only one runnable file:
exestub.sh:
#!/bin/sh
MYSELF=`which "$0" 2>/dev/null`
[ $? -gt 0 -a -f "$0" ] && MYSELF="./$0"
JAVA_OPT=""
PROG_OPT=""
# Parse options to determine which ones are for Java and which ones are for the Program
while [ $# -gt 0 ] ; do
case $1 in
-Xm*) JAVA_OPT="$JAVA_OPT $1" ;;
-D*) JAVA_OPT="$JAVA_OPT $1" ;;
*) PROG_OPT="$PROG_OPT $1" ;;
esac
shift
done
exec java $JAVA_OPT -jar $MYSELF $PROG_OPT
Then you create your runnable file from your jar:
$ cat exestub.sh myrunnablejar.jar > myrunnable
$ chmod +x myrunnable
It works the same way launch4j works: because a jar has a zip format, which header is located at the end of the file. You can have any header you want (either binary executable or, like here, shell script) and run java -jar <myexe>
, as <myexe>
is a valid zip/jar file.
Just use MS Web platform Installer 4.5 to install all stuff for MS SQL Server 2008 R2.
And don't forget to reload machine.
:)
My solution:
Object.prototype.__index = function(index)
{
var i = -1;
for (var key in this)
{
if (this.hasOwnProperty(key) && typeof(this[key])!=='function')
++i;
if (i >= index)
return this[key];
}
return null;
}
aObj = {'jack':3, 'peter':4, '5':'col', 'kk':function(){alert('hell');}, 'till':'ding'};
alert(aObj.__index(4));
You have a pointer to an object. Therefore, you need to access a field of an object that's pointed to by the pointer. To dereference the pointer you use *
, and to access a field, you use .
, so you can use:
cout << (*kwadrat).val1;
Note that the parentheses are necessary. This operation is common enough that long ago (when C was young) they decided to create a "shorthand" method of doing it:
cout << kwadrat->val1;
These are defined to be identical. As you can see, the ->
basically just combines a *
and a .
into a single operation. If you were dealing directly with an object or a reference to an object, you'd be able to use the .
without dereferencing a pointer first:
Kwadrat kwadrat2(2,3,4);
cout << kwadrat2.val1;
The ::
is the scope resolution operator. It is used when you only need to qualify the name, but you're not dealing with an individual object at all. This would be primarily to access a static data member:
struct something {
static int x; // this only declares `something::x`. Often found in a header
};
int something::x; // this defines `something::x`. Usually in .cpp/.cc/.C file.
In this case, since x
is static
, it's not associated with any particular instance of something
. In fact, it will exist even if no instance of that type of object has been created. In this case, we can access it with the scope resolution operator:
something::x = 10;
std::cout << something::x;
Note, however, that it's also permitted to access a static member as if it was a member of a particular object:
something s;
s.x = 1;
At least if memory serves, early in the history of C++ this wasn't allowed, but the meaning is unambiguous, so they decided to allow it.
If you use version 26 then inside dependencies version should be 1.0.1 and 3.0.1 i.e., as follows
androidTestImplementation 'com.android.support.test:runner:1.0.1'
androidTestImplementation 'com.android.support.test.espresso:espresso-core:3.0.1'
If you use version 27 then inside dependencies version should be 1.0.2 and 3.0.2 i.e., as follows
androidTestImplementation 'com.android.support.test:runner:1.0.2'
androidTestImplementation 'com.android.support.test.espresso:espresso-core:3.0.2'
<embed ... autostart="0">
Replace false with 0
Well, you're going to have to check for null somewhere. You could do something like this:
from item in db.vw_Dropship_OrderItems
where (listStatus == null || listStatus.Contains(item.StatusCode))
&& (listMerchants == null || listMerchants.Contains(item.MerchantId))
select item;
From man nano
:
-T cols (--tabsize=cols)
Set the size (width) of a tab to cols columns.
The value of cols must be greater than 0. The default value is 8.
-E (--tabstospaces)
Convert typed tabs to spaces.
For example, to set the tab size to 4, replace tabs with spaces, and edit the file "foo.txt", you would run the command:
nano -ET4 foo.txt
From man nanorc
:
set tabsize n
Use a tab size of n columns. The value of n must be greater than 0.
The default value is 8.
set/unset tabstospaces
Convert typed tabs to spaces.
Edit your ~/.nanorc
file (create it if it does not exist), and add those commands to it. For example:
set tabsize 4
set tabstospaces
Nano will use these settings by default whenever it is launched, but command-line flags will override them.
If you make
overflow: hidden
in the outer div and overflow-y: scroll
in the inner div it will work.
Format with Currency format string
=Format(Fields!Price.Value, "C")
It will give you 2 decimal places with "$" prefixed.
You can find other format strings on MSDN: Adding Style and Formatting to a ReportViewer Report
Note: The MSDN article has been archived to the "VS2005_General" document, which is no longer directly accessible online. Here is the excerpt of the formatting strings referenced:
Formatting Numbers
The following table lists common .NET Framework number formatting strings.
Format string, Name
C or c Currency
D or d Decimal
E or e Scientific
F or f Fixed-point
G or g General
N or n Number
P or p Percentage
R or r Round-trip
X or x Hexadecimal
You can modify many of the format strings to include a precision specifier that defines the number of digits to the right of the
decimal point. For example, a formatting string of D0 formats the number so that it has no digits after the decimal point. You
can also use custom formatting strings, for example, #,###.
Formatting Dates
The following table lists common .NET Framework date formatting strings.
Format string, Name
d Short date
D Long date
t Short time
T Long time
f Full date/time (short time)
F Full date/time (long time)
g General date/time (short time)
G General date/time (long time)
M or m Month day
R or r RFC1123 pattern
Y or y Year month
You can also a use custom formatting strings; for example, dd/MM/yy. For more information about .NET Framework formatting strings, see Formatting Types.
Besides from the multiple line behaviour, the main difference between UITextView and UITextField is that the UITextView does not propose a placeholder. To bypass this limitation, you can use a UITextView with a "fake placeholder."
See this SO question for details: Placeholder in UITextView.
Yes, you are correct. If you are using a jQuery plugin, do not put the code in the controller. Instead create a directive and put the code that you would normally have inside the link
function of the directive.
There are a couple of points in the documentation that you could take a look at. You can find them here:
Common Pitfalls
Ensure that when you are referencing the script in your view, you refer it last - after the angularjs library, controllers, services and filters are referenced.
EDIT: Rather than using $(element)
, you can make use of angular.element(element)
when using AngularJS with jQuery
Here's my super cool version BECAUSE IT HAS A PROGRESS BAR :-)
Which is a completely useless feature, I know, but it still looks cool \m/ \m/
$webclient = New-Object System.Net.WebClient
Register-ObjectEvent -InputObject $webclient -EventName "UploadProgressChanged" -Action { Write-Progress -Activity "Upload progress..." -Status "Uploading" -PercentComplete $EventArgs.ProgressPercentage } > $null
$File = "filename.zip"
$ftp = "ftp://user:password@server/filename.zip"
$uri = New-Object System.Uri($ftp)
try{
$webclient.UploadFileAsync($uri, $File)
}
catch [Net.WebException]
{
Write-Host $_.Exception.ToString() -foregroundcolor red
}
while ($webclient.IsBusy) { continue }
PS. Helps a lot, when I'm wondering "did it stop working, or is it just my slow ASDL connection?"
<style name="AppTheme2" parent="AppTheme">
<!-- Customize your theme here. -->
<item name="colorControlNormal">#fff</item>
<item name="colorControlActivated">#fff</item></style>
add this to styles and set TextInputLayout Theam to App2 and it will work ;)
Use NSJSONSerialization:
NSDictionary *dict;
NSData *dataFromDict = [NSJSONSerialization dataWithJSONObject:dict
options:NSJSONWritingPrettyPrinted
error:&error];
NSDictionary *dictFromData = [NSJSONSerialization JSONObjectWithData:dataFromDict
options:NSJSONReadingAllowFragments
error:&error];
The latest returns id
, so its a good idea to check the returned object type after you cast (here i casted to NSDictionary).
You can find dimension of an image on the page using something like
document.getElementById('someImage').width
file size, however, you will have to use something server-side
As per this PPI calculation tool, Google Nexus 10 has a display density of about 300 DPI...
However, Android documentation states that:
ldpi : ~120dpi mdpi : ~160dpi hdpi : ~240dpi xhdpi : ~320dpi xxhdpi is not specified.
I think we just let Android OS scale up xhdpi resources...
If I have open a package in BIDS ("Business Intelligence Development Studio", the tool you use to design the packages), and do not select any item in it, I have a "Properties" pane in the bottom right containing - among others, the MaximumErrorCount
property. If you do not see it, maybe it is minimized and you have to open it (have a look at tabs in the right).
If you cannot find it this way, try the menu: View/Properties Window.
Or try the F4 key.
When should we use one over the other?
The decision is a trade-off between compatibility and API access.
Use a .NET Standard library when you want to increase the number of applications that will be compatible with your library, and you are okay with a decrease in the .NET API surface area your library can access.
Use a .NET Core library when you want to increase the .NET API surface area your library can access, and you are okay with allowing only .NET Core applications to be compatible with your library.
For example, a library that targets .NET Standard 1.3 will be compatible with applications that target .NET Framework 4.6, .NET Core 1.0, Universal Windows Platform 10.0, and any other platform that supports .NET Standard 1.3. The library will not have access to some parts of the .NET API, though. For instance, the Microsoft.NETCore.CoreCLR
package is compatible with .NET Core, but not with .NET Standard.
What is the difference between Class Library (.NET Standard) and Class Library (.NET Core)?
Compatibility: Libraries that target .NET Standard will run on any .NET Standard compliant runtime, such as .NET Core, .NET Framework, Mono/Xamarin. On the other hand, libraries that target .NET Core can only run on the .NET Core runtime.
API Surface Area: .NET Standard libraries come with everything in NETStandard.Library
, whereas .NET Core libraries come with everything in Microsoft.NETCore.App
. The latter includes approximately 20 additional libraries, some of which we can add manually to our .NET Standard library (such as System.Threading.Thread
) and some of which are not compatible with the .NET Standard (such as Microsoft.NETCore.CoreCLR
).
Also, .NET Core libraries specify a runtime and come with an application model. That's important, for instance, to make unit test class libraries runnable.
Why do both exist?
Ignoring libraries for a moment, the reason that .NET Standard exists is for portability; it defines a set of APIs that .NET platforms agree to implement. Any platform that implements a .NET Standard is compatible with libraries that target that .NET Standard. One of those compatible platforms is .NET Core.
Coming back to libraries, the .NET Standard library templates exist to run on multiple runtimes (at the expense of API surface area). Conversely, the .NET Core library templates exist to access more API surface area (at the expense of compatibility) and to specify a platform against which to build an executable.
Here is an interactive matrix that shows which .NET Standard supports which .NET implementation(s) and how much API surface area is available.
Just omit the [Required] attribute from the string somefield
property. This will make it create a NULL
able column in the db.
To make int types allow NULLs in the database, they must be declared as nullable ints in the model:
// an int can never be null, so it will be created as NOT NULL in db
public int someintfield { get; set; }
// to have a nullable int, you need to declare it as an int?
// or as a System.Nullable<int>
public int? somenullableintfield { get; set; }
public System.Nullable<int> someothernullableintfield { get; set; }
I had this problem because of a typo in the filename tsnames.ora instead of tnsnames.ora
When working with graphical user interfaces, you need to remember that drawing on a pane is done in the Java AWT/Swing event queue. You can't just use the Graphics
object outside the paint()
/paintComponent()
/etc. methods.
However, you can use a technique called "Frame buffering". Basically, you need to have a BufferedImage and draw directly on it (see it's createGraphics()
method; that graphics context you can keep and reuse for multiple operations on a same BufferedImage
instance, no need to recreate it all the time, only when creating a new instance). Then, in your JPanel
's paintComponent()
, you simply need to draw the BufferedImage
instance unto the JPanel
. Using this technique, you can perform zoom, translation and rotation operations quite easily through affine transformations.
I only use MicrosoftAdvertising.Mobile and Microsoft.Advertising.Mobile.UI and I am served ads. The SDK should only add the DLLs not reference itself.
Note: You need to explicitly set width and height Make sure the phone dialer, and web browser capabilities are enabled
Followup note: Make sure that after you've removed the SDK DLL, that the xmlns references are not still pointing to it. The best route to take here is
Here is the xmlns reference:
xmlns:AdNamepace="clr-namespace:Microsoft.Advertising.Mobile.UI;assembly=Microsoft.Advertising.Mobile.UI"
Then the ad itself:
<AdNamespace:AdControl x:Name="myAd" Height="80" Width="480" AdUnitId="yourAdUnitIdHere" ApplicationId="yourIdHere"/>
A note for others who may be using Owl Carousel v 1.3.2:
You can replace the navigation text in the settings where you're enabling the navigation.
navigation:true,
navigationText: [
"<i class='fa fa-chevron-left'></i>",
"<i class='fa fa-chevron-right'></i>"
]
I've tried various methods like LAB color space, HSV comparisons and I've found that luminosity works pretty well for this purpose.
Here is Python version
def lum(c):
def factor(component):
component = component / 255;
if (component <= 0.03928):
component = component / 12.92;
else:
component = math.pow(((component + 0.055) / 1.055), 2.4);
return component
components = [factor(ci) for ci in c]
return (components[0] * 0.2126 + components[1] * 0.7152 + components[2] * 0.0722) + 0.05;
def color_distance(c1, c2):
l1 = lum(c1)
l2 = lum(c2)
higher = max(l1, l2)
lower = min(l1, l2)
return (higher - lower) / higher
c1 = ImageColor.getrgb('white')
c2 = ImageColor.getrgb('yellow')
print(color_distance(c1, c2))
Will give you
0.0687619047619048
You can also use Java's implicit conversion:
BigInteger m = new BigInteger(bytemsg);
String mStr = "" + m; // mStr now contains string representation of m.
If you are using numpy, you have the argsort() function available:
>>> import numpy
>>> numpy.argsort(myList)
array([0, 1, 2, 4, 3])
http://docs.scipy.org/doc/numpy/reference/generated/numpy.argsort.html
This returns the arguments that would sort the array or list.
You can also configure directly on the file ..sqldeveloper\ide\bin\ide.conf
:
Just add the JVM Option:
AddVMOption -Duser.language=en
The file will be like this:
Try setting the style to display=none:
<img src="a.gif" style="display:none">
What seems to be the problem, I just fixed mine in case anyone was wondering - Due to other errors i turned off build automatically, when i created a new project it said R.layout.main had an issue and needed to import R; So naturally as a novice, i did. Then i built manually and it had a problem with main. Try building your program as is, remove import R and it should be fine.
One way or another you must tell boto3 in which region you wish the kms
client to be created. This could be done explicitly using the region_name
parameter as in:
kms = boto3.client('kms', region_name='us-west-2')
or you can have a default region associated with your profile in your ~/.aws/config
file as in:
[default]
region=us-west-2
or you can use an environment variable as in:
export AWS_DEFAULT_REGION=us-west-2
but you do need to tell boto3 which region to use.
I had the same issue in Vagrant.
I have used sudo to run the command to install.
sudo npm install -g grunt-cli
It worked for me.
Simplistically, in UNIX, you have the concept of processes and programs. A process is an environment in which a program executes.
The simple idea behind the UNIX "execution model" is that there are two operations you can do.
The first is to fork()
, which creates a brand new process containing a duplicate (mostly) of the current program, including its state. There are a few differences between the two processes which allow them to figure out which is the parent and which is the child.
The second is to exec()
, which replaces the program in the current process with a brand new program.
From those two simple operations, the entire UNIX execution model can be constructed.
To add some more detail to the above:
The use of fork()
and exec()
exemplifies the spirit of UNIX in that it provides a very simple way to start new processes.
The fork()
call makes a near duplicate of the current process, identical in almost every way (not everything is copied over, for example, resource limits in some implementations, but the idea is to create as close a copy as possible). Only one process calls fork()
but two processes return from that call - sounds bizarre but it's really quite elegant
The new process (called the child) gets a different process ID (PID) and has the PID of the old process (the parent) as its parent PID (PPID).
Because the two processes are now running exactly the same code, they need to be able to tell which is which - the return code of fork()
provides this information - the child gets 0, the parent gets the PID of the child (if the fork()
fails, no child is created and the parent gets an error code).
That way, the parent knows the PID of the child and can communicate with it, kill it, wait for it and so on (the child can always find its parent process with a call to getppid()
).
The exec()
call replaces the entire current contents of the process with a new program. It loads the program into the current process space and runs it from the entry point.
So, fork()
and exec()
are often used in sequence to get a new program running as a child of a current process. Shells typically do this whenever you try to run a program like find
- the shell forks, then the child loads the find
program into memory, setting up all command line arguments, standard I/O and so forth.
But they're not required to be used together. It's perfectly acceptable for a program to call fork()
without a following exec()
if, for example, the program contains both parent and child code (you need to be careful what you do, each implementation may have restrictions).
This was used quite a lot (and still is) for daemons which simply listen on a TCP port and fork a copy of themselves to process a specific request while the parent goes back to listening. For this situation, the program contains both the parent and the child code.
Similarly, programs that know they're finished and just want to run another program don't need to fork()
, exec()
and then wait()/waitpid()
for the child. They can just load the child directly into their current process space with exec()
.
Some UNIX implementations have an optimized fork()
which uses what they call copy-on-write. This is a trick to delay the copying of the process space in fork()
until the program attempts to change something in that space. This is useful for those programs using only fork()
and not exec()
in that they don't have to copy an entire process space. Under Linux, fork()
only makes a copy of the page tables and a new task structure, exec()
will do the grunt work of "separating" the memory of the two processes.
If the exec
is called following fork
(and this is what happens mostly), that causes a write to the process space and it is then copied for the child process, before modifications are allowed.
Linux also has a vfork()
, even more optimised, which shares just about everything between the two processes. Because of that, there are certain restrictions in what the child can do, and the parent halts until the child calls exec()
or _exit()
.
The parent has to be stopped (and the child is not permitted to return from the current function) since the two processes even share the same stack. This is slightly more efficient for the classic use case of fork()
followed immediately by exec()
.
Note that there is a whole family of exec
calls (execl
, execle
, execve
and so on) but exec
in context here means any of them.
The following diagram illustrates the typical fork/exec
operation where the bash
shell is used to list a directory with the ls
command:
+--------+
| pid=7 |
| ppid=4 |
| bash |
+--------+
|
| calls fork
V
+--------+ +--------+
| pid=7 | forks | pid=22 |
| ppid=4 | ----------> | ppid=7 |
| bash | | bash |
+--------+ +--------+
| |
| waits for pid 22 | calls exec to run ls
| V
| +--------+
| | pid=22 |
| | ppid=7 |
| | ls |
V +--------+
+--------+ |
| pid=7 | | exits
| ppid=4 | <---------------+
| bash |
+--------+
|
| continues
V
I know this is an old question, but I wanted to add something to the answers already here in hopes of helping someone else.
You can script the ftp
command with the -s:filename
option. The syntax is just a list of commands to pass to the ftp
shell, each terminated by a newline. This page has a nice reference to the commands that can be performed with ftp
.
Using the normal ftp
doesn't work very well when you need to have an entire directory tree copied to or from a ftp site. So you could use something like these to handle those situations.
These scripts works with the Windows ftp
command and allows for uploading and downloading of entire directories from a single command. This makes it pretty self reliant when using on different systems.
Basically what they do is map out the directory structure to be up/downloaded, dump corresponding ftp
commands to a file, then execute those commands when the mapping has finished.
ftpupload.bat
@echo off
SET FTPADDRESS=%1
SET FTPUSERNAME=%2
SET FTPPASSWORD=%3
SET LOCALDIR=%~f4
SET REMOTEDIR=%5
if "%FTPADDRESS%" == "" goto FTP_UPLOAD_USAGE
if "%FTPUSERNAME%" == "" goto FTP_UPLOAD_USAGE
if "%FTPPASSWORD%" == "" goto FTP_UPLOAD_USAGE
if "%LOCALDIR%" == "" goto FTP_UPLOAD_USAGE
if "%REMOTEDIR%" == "" goto FTP_UPLOAD_USAGE
:TEMP_NAME
set TMPFILE=%TMP%\%RANDOM%_ftpupload.tmp
if exist "%TMPFILE%" goto TEMP_NAME
SET INITIALDIR=%CD%
echo user %FTPUSERNAME% %FTPPASSWORD% > %TMPFILE%
echo bin >> %TMPFILE%
echo lcd %LOCALDIR% >> %TMPFILE%
cd %LOCALDIR%
setlocal EnableDelayedExpansion
echo mkdir !REMOTEDIR! >> !TMPFILE!
echo cd %REMOTEDIR% >> !TMPFILE!
echo mput * >> !TMPFILE!
for /d /r %%d in (*) do (
set CURRENT_DIRECTORY=%%d
set RELATIVE_DIRECTORY=!CURRENT_DIRECTORY:%LOCALDIR%=!
echo mkdir "!REMOTEDIR!/!RELATIVE_DIRECTORY:~1!" >> !TMPFILE!
echo cd "!REMOTEDIR!/!RELATIVE_DIRECTORY:~1!" >> !TMPFILE!
echo mput "!RELATIVE_DIRECTORY:~1!\*" >> !TMPFILE!
)
echo quit >> !TMPFILE!
endlocal EnableDelayedExpansion
ftp -n -i "-s:%TMPFILE%" %FTPADDRESS%
del %TMPFILE%
cd %INITIALDIR%
goto FTP_UPLOAD_EXIT
:FTP_UPLOAD_USAGE
echo Usage: ftpupload [address] [username] [password] [local directory] [remote directory]
echo.
:FTP_UPLOAD_EXIT
set INITIALDIR=
set FTPADDRESS=
set FTPUSERNAME=
set FTPPASSWORD=
set LOCALDIR=
set REMOTEDIR=
set TMPFILE=
set CURRENT_DIRECTORY=
set RELATIVE_DIRECTORY=
@echo on
ftpget.bat
@echo off
SET FTPADDRESS=%1
SET FTPUSERNAME=%2
SET FTPPASSWORD=%3
SET LOCALDIR=%~f4
SET REMOTEDIR=%5
SET REMOTEFILE=%6
if "%FTPADDRESS%" == "" goto FTP_UPLOAD_USAGE
if "%FTPUSERNAME%" == "" goto FTP_UPLOAD_USAGE
if "%FTPPASSWORD%" == "" goto FTP_UPLOAD_USAGE
if "%LOCALDIR%" == "" goto FTP_UPLOAD_USAGE
if not defined REMOTEDIR goto FTP_UPLOAD_USAGE
if not defined REMOTEFILE goto FTP_UPLOAD_USAGE
:TEMP_NAME
set TMPFILE=%TMP%\%RANDOM%_ftpupload.tmp
if exist "%TMPFILE%" goto TEMP_NAME
echo user %FTPUSERNAME% %FTPPASSWORD% > %TMPFILE%
echo bin >> %TMPFILE%
echo lcd %LOCALDIR% >> %TMPFILE%
echo cd "%REMOTEDIR%" >> %TMPFILE%
echo mget "%REMOTEFILE%" >> %TMPFILE%
echo quit >> %TMPFILE%
ftp -n -i "-s:%TMPFILE%" %FTPADDRESS%
del %TMPFILE%
goto FTP_UPLOAD_EXIT
:FTP_UPLOAD_USAGE
echo Usage: ftpget [address] [username] [password] [local directory] [remote directory] [remote file pattern]
echo.
:FTP_UPLOAD_EXIT
set FTPADDRESS=
set FTPUSERNAME=
set FTPPASSWORD=
set LOCALDIR=
set REMOTEFILE=
set REMOTEDIR=
set TMPFILE=
set CURRENT_DIRECTORY=
set RELATIVE_DIRECTORY=
@echo on
OP is using python, but in javascript (something to be careful of since the syntaxes are similar.
// only replaces the first instance of ' ' with '_'
"one two three".replace(' ', '_');
=> "one_two three"
// replaces all instances of ' ' with '_'
"one two three".replace(/\s/g, '_');
=> "one_two_three"
Okay, of course the question has been answered, but no-one seems to notice the third line of your code. It continuosly bugged me.
<?php
mysqli_connect("localhost","root","","web_table");
mysql_select_db("web_table") or die(mysql_error());
for some reason, you made a mysqli connection to server, but you are trying to make a mysql connection to database.To get going, rather use
$link = mysqli_connect("localhost","root","","web_table");
mysqli_select_db ($link , "web_table" ) or die.....
or for where i began
<?php $connection = mysqli_connect("localhost","root","","web_table");
global $connection; // global connection to databases - kill it once you're done
or just query with a $connection parameter as the other argument like above. Get rid of that third line.
sth's solution didn't work for me
because in ...
Imaging/PIL/Image.pyc line 1423 -> raise KeyError(ext) # unknown extension
It was trying to detect the format from the extension in the filename , which doesn't exist in StringIO case
You can bypass the format detection by setting the format yourself in a parameter
import StringIO
output = StringIO.StringIO()
format = 'PNG' # or 'JPEG' or whatever you want
image.save(output, format)
contents = output.getvalue()
output.close()
I found now 2 ways to work with eclipse without getting “SWTError: No more handles” on my Dell ProBook 6550b Windows 7 64 bit but none of them is really satisfying: I can start windows in “secure mode” or I can downgrade to “eclipse-jee-indigo-SR2-win32-x86_64”. I will now try to kill one process after the other until kepler starts working respective until I arrive in secure mode.
... and then a few hours later ...
Finally (for now) I could solve the issue (at least on my laptop: Dell ProBook 6550b Windows 7 64). I “just” had to kill the processes: “DPAgent.exe*32” (DigitalPersona Local Agent) & “DPAgent.exe” (DigitalPersona 64-bit Helper Process) which were luckily running under my user (and not SYSTEM which might have made it impossible to kill depending on your rights). Nevertheless I don't understand how these processes can interfere with SWT handles in eclipse ....
More information on this issue can as well be found here: https://bugs.eclipse.org/bugs/show_bug.cgi?id=402983
Why you are using row.Cells[row.Index]. You need to specify index of column you want to search (Problem #2). For example, you need to change row.Cells[row.Index] to row.Cells[2] where 2 is index of your column:
private void btnSearch_Click(object sender, EventArgs e)
{
string searchValue = textBox1.Text;
dgvProjects.SelectionMode = DataGridViewSelectionMode.FullRowSelect;
try
{
foreach (DataGridViewRow row in dgvProjects.Rows)
{
if (row.Cells[2].Value.ToString().Equals(searchValue))
{
row.Selected = true;
break;
}
}
}
catch (Exception exc)
{
MessageBox.Show(exc.Message);
}
}
here's a hairy, built in way to get many of the same answers. Note that although python considers ""
to be false and all other strings to be true, TCL has a very different idea about things.
>>> import Tkinter
>>> tk = Tkinter.Tk()
>>> var = Tkinter.BooleanVar(tk)
>>> var.set("false")
>>> var.get()
False
>>> var.set("1")
>>> var.get()
True
>>> var.set("[exec 'rm -r /']")
>>> var.get()
Traceback (most recent call last):
File "<stdin>", line 1, in <module>
File "/usr/lib/python2.5/lib-tk/Tkinter.py", line 324, in get
return self._tk.getboolean(self._tk.globalgetvar(self._name))
_tkinter.TclError: 0expected boolean value but got "[exec 'rm -r /']"
>>>
A good thing about this is that it is fairly forgiving about the values you can use. It's lazy about turning strings into values, and it's hygenic about what it accepts and rejects(notice that if the above statement were given at a tcl prompt, it would erase the users hard disk).
the bad thing is that it requires that Tkinter be available, which is usually, but not universally true, and more significantly, requires that a Tk instance be created, which is comparatively heavy.
What is considered true or false depends on the behavior of the Tcl_GetBoolean
, which considers 0
, false
, no
and off
to be false and 1
, true
, yes
and on
to be true, case insensitive. Any other string, including the empty string, cause an exception.
mysqli_select_db()
should have 2 parameters, the connection link and the database name -
mysqli_select_db($con, 'phpcadet') or die(mysqli_error($con));
Using mysqli_error
in the die statement will tell you exactly what is wrong as opposed to a generic error message.
If you've got an image in the Icons folder of your project and its build action is "Resource", you can refer to it like this:
<Image Source="/Icons/play_small.png" />
That's the simplest way to do it. This is the only way I could figure doing it purely from the resource standpoint and no project files:
var resourceManager = new ResourceManager(typeof (Resources));
var bitmap = resourceManager.GetObject("Search") as System.Drawing.Bitmap;
var memoryStream = new MemoryStream();
bitmap.Save(memoryStream, System.Drawing.Imaging.ImageFormat.Bmp);
memoryStream.Position = 0;
var bitmapImage = new BitmapImage();
bitmapImage.BeginInit();
bitmapImage.StreamSource = memoryStream;
bitmapImage.EndInit();
this.image1.Source = bitmapImage;
I came across this question when I was looking for a solution to my own problem for printing the "words" of the enumeration in C++. I came back to provide a simple solution which answers the presented question as worded. All that's required is to 'mirror' the enum list with a vector.
enum class genre { Fiction, NonFiction, Periodical, Biography, Children };
vector<string>genre_tbl { "Fiction", "NonFiction", "Periodical", "Biography", "Children" };
Because the enum as typed above will do the following by default;
Fiction = 0
NonFiction = 1
Periodical = 2
Biography = 3
Children = 4
This matches the vector positions which makes enum to string conversion pretty straight forward.
string s1 = genre_tbl[int(genre::fiction)];
For my problem I created a user defined class called Book with a member called Gen of type genre. The program needed to be able to print the genre as the word.
class book {...};
ostream& operator<<(ostream& os, genre g) { return os << genre_tbl[int(g)]; }
book b1;
b1.Gen = genre(0)
cout << b1.Gen;
For which "Fiction" will print to screen in this case.
You can get other constructors with getConstructor(...).
I had to solve a similar problem--I wanted certain styles to only apply to mobile devices in landscape mode. Essentially the fonts and line spacing looked fine in every other context, so I just needed the one exception for mobile landscape. This media query worked perfectly:
@media all and (max-width: 600px) and (orientation:landscape)
{
/* styles here */
}
basically BASE_DIR
is your django project directory, same dir where manage.py
is.
TEMPLATES = [
{
'BACKEND': 'django.template.backends.django.DjangoTemplates',
'DIRS': [os.path.join(BASE_DIR, 'templates')],
'APP_DIRS': True,
'OPTIONS': {
'context_processors': [
'django.template.context_processors.debug',
'django.template.context_processors.request',
'django.contrib.auth.context_processors.auth',
'django.contrib.messages.context_processors.messages',
],
},
},
]
The simple GUI way, as provided by J Y in a previous answer:
This works well and reminds you of the significance of allocation unit size. But it does have a caveat: as seen in comments to previous answer, Windows will sometimes show "Size on disk" as 0 for a very small file. In my testing, NTFS filesystems with allocation unit size 4096 bytes required the file to be 800 bytes to consistently avoid this issue. On FAT32 file systems this issue seems nonexistent, even a single byte file will work - just not empty.
Hibernate defines five types of identifier generation strategies:
AUTO - either identity column, sequence or table depending on the underlying DB
TABLE - table holding the id
IDENTITY - identity column
SEQUENCE - sequence
identity copy – the identity is copied from another entity
Example using Table
@Id
@GeneratedValue(strategy=GenerationType.TABLE , generator="employee_generator")
@TableGenerator(name="employee_generator",
table="pk_table",
pkColumnName="name",
valueColumnName="value",
allocationSize=100)
@Column(name="employee_id")
private Long employeeId;
for more details, check the link.
private void DeleteProductButton_Click(object sender, EventArgs e)
{
string ProductID = deleteProductButton.Text;
if (string.IsNullOrEmpty(ProductID))
{
MessageBox.Show("Please enter valid ProductID");
deleteProductButton.Focus();
}
try
{
string SelectDelete = "Delete from Products where ProductID=" + deleteProductButton.Text;
SqlCommand command = new SqlCommand(SelectDelete, Conn);
command.CommandType = CommandType.Text;
command.CommandTimeout = 15;
DialogResult comfirmDelete = MessageBox.Show("Are you sure you want to delete this record?");
if (comfirmDelete == DialogResult.No)
{
return;
}
}
catch (Exception Ex)
{
MessageBox.Show(Ex.Message);
}
}
@last_run_time
is a 9.4. User-Defined Variables and last_run_time datetime
one 13.6.4.1. Local Variable DECLARE Syntax, are different variables.
Try: SELECT last_run_time;
UPDATE
Example:
/* CODE FOR DEMONSTRATION PURPOSES */
DELIMITER $$
CREATE PROCEDURE `sp_test`()
BEGIN
DECLARE current_procedure_name CHAR(60) DEFAULT 'accounts_general';
DECLARE last_run_time DATETIME DEFAULT NULL;
DECLARE current_run_time DATETIME DEFAULT NOW();
-- Define the last run time
SET last_run_time := (SELECT MAX(runtime) FROM dynamo.runtimes WHERE procedure_name = current_procedure_name);
-- if there is no last run time found then use yesterday as starting point
IF(last_run_time IS NULL) THEN
SET last_run_time := DATE_SUB(NOW(), INTERVAL 1 DAY);
END IF;
SELECT last_run_time;
-- Insert variables in table2
INSERT INTO table2 (col0, col1, col2) VALUES (current_procedure_name, last_run_time, current_run_time);
END$$
DELIMITER ;
$start_date = date('Y-m-d h:m:s');
$end_date = date('Y-m-d h:m:s', strtotime($start_date . "+".$userSubscription['duration']." months") );
$user_subscription_array = array(
array(
'user_id' => $request->input('user_id'),
'user_subscription_plan_id' => $request->input('subscription_plan_id'),
'name' => $userSubscription['name'],
'description' => $userSubscription['description'],
'duration' => $userSubscription['duration'],
'start_datetime' => $start_date,
'end_datetime' => $end_date,
'amount' => $userSubscription['amount'],
'invoice_id' => '',
'transection_datetime' => '',
'created_by' => '1',
'status_id' => '1', ),
array(
'user_id' => $request->input('user_id'),
'user_subscription_plan_id' => $request->input('subscription_plan_id'),
'name' => $userSubscription['name'],
'description' => $userSubscription['description'],
'duration' => $userSubscription['duration'],
'start_datetime' => $start_date,
'end_datetime' => $end_date,
'amount' => $userSubscription['amount'],
'invoice_id' => '',
'transection_datetime' => '',
'created_by' => '1',
'status_id' => '1', )
);
dd(UserSubscription::insert($user_subscription_array));
UserSubscription
is my model name.
This will return "true" if insert successfully else "false".
One thing I see here to optimize.
While I do agree that the balls hit when the distance is the sum of their radii one should never actually calculate this distance! Rather, calculate it's square and work with it that way. There's no reason for that expensive square root operation.
Also, once you have found a collision you have to continue to evaluate collisions until no more remain. The problem is that the first one might cause others that have to be resolved before you get an accurate picture. Consider what happens if the ball hits a ball at the edge? The second ball hits the edge and immediately rebounds into the first ball. If you bang into a pile of balls in the corner you could have quite a few collisions that have to be resolved before you can iterate the next cycle.
As for the O(n^2), all you can do is minimize the cost of rejecting ones that miss:
1) A ball that is not moving can't hit anything. If there are a reasonable number of balls lying around on the floor this could save a lot of tests. (Note that you must still check if something hit the stationary ball.)
2) Something that might be worth doing: Divide the screen into a number of zones but the lines should be fuzzy--balls at the edge of a zone are listed as being in all the relevant (could be 4) zones. I would use a 4x4 grid, store the zones as bits. If an AND of the zones of two balls zones returns zero, end of test.
3) As I mentioned, don't do the square root.
You could rephrase the question, and by doing so - coming up with another solution. How can I enable communication between views, viewmodels and whatnot in an MVVM environment? You could use the Mediator pattern. It's basically a notification system. For the actual Mediator implementation, google for it or ask me and I can email it.
Make a Command whose purpose is to close the view.
public void Execute( object parameter )
{
this.viewModel.DisposeMyStuff();
Mediator.NotifyColleagues(Mediator.Token.ConfigWindowShouldClose);
}
The Mediator will raise a notification (a token)
Listen to this notification (token) like this in the View codebehind constructor:
public ClientConfigView()
{
InitializeComponent();
Mediator.ListenOn(Mediator.Token.ConfigWindowShouldClose, callback => this.Close() );
}
The %s
specifier converts the object using str()
, and %r
converts it using repr()
.
For some objects such as integers, they yield the same result, but repr()
is special in that (for types where this is possible) it conventionally returns a result that is valid Python syntax, which could be used to unambiguously recreate the object it represents.
Here's an example, using a date:
>>> import datetime
>>> d = datetime.date.today()
>>> str(d)
'2011-05-14'
>>> repr(d)
'datetime.date(2011, 5, 14)'
Types for which repr()
doesn't produce Python syntax include those that point to external resources such as a file
, which you can't guarantee to recreate in a different context.
There is a static method System.IO.File.WriteAllBytes
You can solve it like this:
git reset --hard sha
where sha
e.g.: 85a108ec5d8443626c690a84bc7901195d19c446
You can get the desired sha with the command:
git log
PHP uses weak typing (which it calls 'type juggling'), which is a bad idea (though that's a conversation for another time). When you try to use a variable in a context that requires a boolean, it will convert whatever your variable is into a boolean, according to some mostly arbitrary rules available here: http://www.php.net/manual/en/language.types.boolean.php#language.types.boolean.casting
The way to do was looking at the code in code/core/Mage/Catalog/Model/Resource/Category/Flat/Collection.php
at line 380 in Magento 1.7.2 on the function setPage($pageNum, $pageSize)
$collection = Mage::getModel('model')
->getCollection()
->setCurPage(2) // 2nd page
->setPageSize(10); // 10 elements per pages
I hope this will help someone.
You may want to create a subRepeater.
<asp:Repeater ID="SubRepeater" runat="server" DataSource='<%# Eval("Fields") %>'>
<ItemTemplate>
<span><%# Eval("Name") %></span>
</ItemTemplate>
</asp:Repeater>
You can also cast your fields
<%# ((ArrayFields)Container.DataItem).Fields[0].Name %>
Finally you could do a little CSV Function and write out your fields with a function
<%# GetAsCsv(((ArrayFields)Container.DataItem).Fields) %>
public string GetAsCsv(IEnumerable<Fields> fields)
{
var builder = new StringBuilder();
foreach(var f in fields)
{
builder.Append(f);
builder.Append(",");
}
builder.Remove(builder.Length - 1);
return builder.ToString();
}
The best way to do this is to have your files zipped and link to that:
The other solution can be found here: How to make a link open multiple pages when clicked
Which states the following:
HTML:
<a href="#" class="yourlink">Download</a>
JS:
$('a.yourlink').click(function(e) {
e.preventDefault();
window.open('mysite.com/file1');
window.open('mysite.com/file2');
window.open('mysite.com/file3');
});
Having said this, I would still go with zipping the file, as this implementation requires JavaScript and can also sometimes be blocked as popups.
Not my answer :
I wasn't too happy with the answers above and some additional searching yielded this :
SELECT SYSDATE AS current_date,
SYSDATE + 1 AS plus_1_day,
SYSDATE + 1/24 AS plus_1_hours,
SYSDATE + 1/24/60 AS plus_1_minutes,
SYSDATE + 1/24/60/60 AS plus_1_seconds
FROM dual;
which I found very helpful. From http://sqlbisam.blogspot.com/2014/01/add-date-interval-to-date-or-dateadd.html
Simply declare your variable to final
You could use the toJSON() JavaScript method, it converts a JavaScript DateTime to what C# can recognise as a DateTime.
The JavaScript code looks like this
var date = new Date();
date.toJSON(); // this is the JavaScript date as a c# DateTime
Note: The result will be in UTC time
Use shared variable to communicate. For example like this:
import multiprocessing
def worker(procnum, return_dict):
"""worker function"""
print(str(procnum) + " represent!")
return_dict[procnum] = procnum
if __name__ == "__main__":
manager = multiprocessing.Manager()
return_dict = manager.dict()
jobs = []
for i in range(5):
p = multiprocessing.Process(target=worker, args=(i, return_dict))
jobs.append(p)
p.start()
for proc in jobs:
proc.join()
print(return_dict.values())
Or, you can go to your android-studio\bin
folder and change these -Xmx and -Xms values in studio.exe.vmoptions
or studio64.exe.vmoptions
files (depending on which version you are running).
SELECT sql FROM sqlite_master
WHERE tbl_name = 'table_name' AND type = 'table'
Then parse this value with Reg Exp (it's easy) which could looks similar to this: [(.*?)]
Alternatively you can use:
PRAGMA table_info(table_name)
Depending on the type of data you're dealing with, you could also just get the value counts of each column while performing your EDA by setting dropna to False.
for col in df:
print df[col].value_counts(dropna=False)
Works well for categorical variables, not so much when you have many unique values.
It was not clear to me in the question if ts.tax_status_code is a primary or alternate key or not. Same thing with recipient_code. This would be useful to know.
You can deal with the possibility of your bind variable being null using an OR as follows. You would bind the same thing to the first two bind variables.
If you are concerned about performance, you would be better to check if the values you intend to bind are null or not and then issue different SQL statement to avoid the OR.
insert into account_type_standard
(account_type_Standard_id, tax_status_id, recipient_id)
(
select
account_type_standard_seq.nextval,
ts.tax_status_id,
r.recipient_id
from tax_status ts, recipient r
where (ts.tax_status_code = ? OR (ts.tax_status_code IS NULL and ? IS NULL))
and (r.recipient_code = ? OR (r.recipient_code IS NULL and ? IS NULL))
Create a Game model which extends Eloquent and use this:
Game::take(30)->skip(30)->get();
take()
here will get 30 records and skip()
here will offset to 30 records.
In recent Laravel versions you can also use:
Game::limit(30)->offset(30)->get();
SELECT (to_date('02-JAN-2013') - to_date('02-JAN-2012')) days_between
FROM dual
/
I started to get this problem with Asp.Net Core Web Applications in Visual Studio 2017. It didn't matter if it was the .Net Core Standard version with .Net 4.5.2 or the Core version with 1.1 in my case. IISExpress crashed when I started debug.
Tried everything, nothing worked until I went into add/remove programs in Windows 10 and I uninstalled .net core 1.0 runtime (I had both 1.0 installed AND 1.1). Once that was uninstalled, I started Visual Studio 2017 and my .Net Core Web applications (both kinds) and they both started working again!
UPDATE - Even less wordy version
INSERT INTO tableName (col1, col2, col3, col4, col5)
VALUES ('val1', 'val2', 'val3', 'val4', 'val5'),
('val1', 'val2', 'val3', 'val4', 'val5'),
('val1', 'val2', 'val3', 'val4', 'val5'),
('val1', 'val2', 'val3', 'val4', 'val5')
The following also works for DB2 and is slightly less wordy
INSERT INTO tableName (col1, col2, col3, col4, col5)
VALUES ('val1', 'val2', 'val3', 'val4', 'val5') UNION ALL
VALUES ('val1', 'val2', 'val3', 'val4', 'val5') UNION ALL
VALUES ('val1', 'val2', 'val3', 'val4', 'val5') UNION ALL
VALUES ('val1', 'val2', 'val3', 'val4', 'val5')
Late, but:
In addition to the DEFAULT_FROM_EMAIL
fix others have mentioned, and allowing less-secure apps to access the account, I had to navigate to https://accounts.google.com/DisplayUnlockCaptcha while signed in as the account in question to get Django to finally authenticate.
I went to that URL through a SSH tunnel to the web server to make sure the IP address was the same; I'm not totally sure if that's necessary but it can't hurt. You can do that like so: ssh -D 8080 -fN <username>@<host>
, then set your web browser to use localhost:8080
as a SOCKS proxy.
Thank you for this post which was quite useful. I had to tweak it a little in order to check for framework 2.0 because the registry key cannot be converted straightaway to a double. Here is the code:
string[] version_names = rk.GetSubKeyNames();
//version names start with 'v', eg, 'v3.5'
//we also need to take care of strings like v2.0.50727...
string sCurrent = version_names[version_names.Length - 1].Remove(0, 1);
if (sCurrent.LastIndexOf(".") > 1)
{
string[] sSplit = sCurrent.Split('.');
sCurrent = sSplit[0] + "." + sSplit[1] + sSplit[2];
}
double dCurrent = Convert.ToDouble(sCurrent, System.Globalization.CultureInfo.InvariantCulture);
double dExpected = Convert.ToDouble(sExpectedVersion);
if (dCurrent >= dExpected)
Expanding on Ehsan's Answer....
If you are using .Net framework 4.5 then you can have a simple method to verify email address using EmailAddressAttribute
Class in code.
private static bool IsValidEmailAddress(string emailAddress)
{
return new System.ComponentModel.DataAnnotations
.EmailAddressAttribute()
.IsValid(emailAddress);
}
If you are considering REGEX to verify email address then read:
I Knew How To Validate An Email Address Until I Read The RFC By Phil Haack
Quick fix, add this in your options:
curl_setopt($ch,CURLOPT_SSL_VERIFYPEER, false)
Now you have no idea what host you're actually connecting to, because cURL will not verify the certificate in any way. Hope you enjoy man-in-the-middle attacks!
Or just add it to your current function:
/**
* Get a web file (HTML, XHTML, XML, image, etc.) from a URL. Return an
* array containing the HTTP server response header fields and content.
*/
function get_web_page( $url )
{
$options = array(
CURLOPT_RETURNTRANSFER => true, // return web page
CURLOPT_HEADER => false, // don't return headers
CURLOPT_FOLLOWLOCATION => true, // follow redirects
CURLOPT_ENCODING => "", // handle all encodings
CURLOPT_USERAGENT => "spider", // who am i
CURLOPT_AUTOREFERER => true, // set referer on redirect
CURLOPT_CONNECTTIMEOUT => 120, // timeout on connect
CURLOPT_TIMEOUT => 120, // timeout on response
CURLOPT_MAXREDIRS => 10, // stop after 10 redirects
CURLOPT_SSL_VERIFYPEER => false // Disabled SSL Cert checks
);
$ch = curl_init( $url );
curl_setopt_array( $ch, $options );
$content = curl_exec( $ch );
$err = curl_errno( $ch );
$errmsg = curl_error( $ch );
$header = curl_getinfo( $ch );
curl_close( $ch );
$header['errno'] = $err;
$header['errmsg'] = $errmsg;
$header['content'] = $content;
return $header;
}
Use
txtdate.Text = DateTime.Today.ToString("dd-MM-yyyy");
I think in your case you don't really need a groupby. I would sort by descending order your B column, then drop duplicates at column A and if you want you can also have a new nice and clean index like that:
df.sort_values('B', ascending=False).drop_duplicates('A').sort_index().reset_index(drop=True)
You can also use the FileReader class :
var reader = new FileReader();
reader.onload = function (e) {
var data = this.result;
}
reader.readAsDataURL( file );
Using both is an important part of application delivery testing. I am only beginning to get involved with Docker and thinking very hard about an application team that has terrible complexity in building and delivering its software. Think of a classic Phoenix Project / Continuous Delivery situation.
The thinking goes something like this:
This seems to be the logical extension of Mitchell's statement that Vagrant is for development combined with Farley/Humbles thinking in Continuous Delivery. If I, as a developer, can shrink the feedback loop on integration testing and application delivery, higher quality and better work environments will follow.
The fact that as a developer I am constantly and consistently delivering containers to the VM and testing the application more holistically means that production releases will be further simplified.
So I see Vagrant evolving as a way of leveraging some of the awesome consequences Docker will have for app deployment.
Standard C++ has no notion of 'colors'. So what you are asking depends on the operating system.
For Windows, you can check out the SetConsoleTextAttribute function.
On *nix, you have to use the ANSI escape sequences.
Python3:
import importlib.machinery
loader = importlib.machinery.SourceFileLoader('report', '/full/path/report/other_py_file.py')
handle = loader.load_module('report')
handle.mainFunction(parameter)
This method can be used to import whichever way you want in a folder structure (backwards, forwards doesn't really matter, i use absolute paths just to be sure).
There's also the more normal way of importing a python module in Python3,
import importlib
module = importlib.load_module('folder.filename')
module.function()
Kudos to Sebastian for spplying a similar answer for Python2:
import imp
foo = imp.load_source('module.name', '/path/to/file.py')
foo.MyClass()
The thing about collations is that although the database has its own collation, every table, and every column can have its own collation. If not specified it takes the default of its parent object, but can be different.
When you change collation of the database, it will be the new default for all new tables and columns, but it doesn't change the collation of existing objects inside the database. You have to go and change manually the collation of every table and column.
Luckily there are scripts available on the internet that can do the job. I am not going to recommend any as I haven't tried them but here are few links:
http://www.codeproject.com/Articles/302405/The-Easy-way-of-changing-Collation-of-all-Database
Update Collation of all fields in database on the fly
http://www.sqlservercentral.com/Forums/Topic820675-146-1.aspx
If you need to have different collation on two objects or can't change collations - you can still JOIN
between them using COLLATE
command, and choosing the collation you want for join.
SELECT * FROM A JOIN B ON A.Text = B.Text COLLATE Latin1_General_CI_AS
or using default database collation:
SELECT * FROM A JOIN B ON A.Text = B.Text COLLATE DATABASE_DEFAULT
I resolved the issue by converting the source feed from http://www.news18.com/rss/politics.xml to https://www.news18.com/rss/politics.xml
with http below code was creating an empty file which was causing the issue down the line
String feedUrl = "https://www.news18.com/rss/politics.xml";
File feedXmlFile = null;
try {
feedXmlFile =new File("C://opinionpoll/newsFeed.xml");
FileUtils.copyURLToFile(new URL(feedUrl),feedXmlFile);
DocumentBuilderFactory dbFactory = DocumentBuilderFactory.newInstance();
DocumentBuilder dBuilder = dbFactory.newDocumentBuilder();
Document doc = dBuilder.parse(feedXmlFile);
git checkout stash -- .
worked for me.
Note: this can be dangerous since it doesn't try to merge the changes from the stash into your working copy, but overwrites it with the stashed files instead. So you can lose your uncommitted changes.
when using (i.e.) getConstructor(String.lang)
the constructor has to be declared public.
Otherwise a NoSuchMethodException
is thrown.
if you want to access a non-public constructor you have to use instead (i.e.) getDeclaredConstructor(String.lang)
.
Building on Chad's answer, you also want to add that function to the onload event to ensure it is resized when the page loads as well.
jQuery.event.add(window, "load", resizeFrame);
jQuery.event.add(window, "resize", resizeFrame);
function resizeFrame()
{
var h = $(window).height();
var w = $(window).width();
$("#elementToResize").css('height',(h < 768 || w < 1024) ? 500 : 400);
}
The period of which you are capable of learning really depends on your ability to grasp the logic behind programming while where to learn from depends on your learning style.
If you are a learn-by-a-book type of guy, just jump on Amazon.com and perform a quick search, pick up the book with the best reviews or wait for someone here to recommend a book (I'm not a programming by book guy)
If you prefer screencasts (video feeds demonstrating what to do) or tutorials, then go straight to the source: http://www.asp.net/learn/. There are tons of videos and tutorials explaining everything you need to get started.
Visual Web Developer 2008 Express should be all you need to get started. Basically, the express editions are Visual Studio chopped down to a precise set of functionality to accomplish one thing. They don't have some of the bells and whistles needed for large scale development, but everything you should need.
In the first line of your JS code:
select.addEventListener('change', getSelection(this), false);
you're invoking getSelection by placing (this)
behind the function reference. That is most likely not what you want, because you're now passing the return value of that call to addEventListener, instead of a reference to the actual function itself.
In a function invoked by addEventListener
the value for this
will automatically be set to the object the listener is attached to, productLineSelect
in this case.
If that is what you want, you can just pass the function reference and this
will in this example be select
in invocations from addEventListener:
select.addEventListener('change', getSelection, false);
If that is not what you want, you'd best bind
your value for this to the function you're passing to addEventListener
:
var thisArg = { custom: 'object' };
select.addEventListener('change', getSelection.bind(thisArg), false);
The .bind
part is also a call, but this call just returns the same function we're calling bind
on, with the value for this
inside that function scope fixed to thisArg
, effectively overriding the dynamic nature of this-binding.
To get to your actual question: "How to pass parameters to function in addEventListener?"
You would have to use an additional function definition:
var globalVar = 'global';
productLineSelect.addEventListener('change', function(event) {
var localVar = 'local';
getSelection(event, this, globalVar, localVar);
}, false);
Now we pass the event object, a reference to the value of this
inside the callback of addEventListener, a variable defined and initialised inside that callback, and a variable from outside the entire addEventListener call to your own getSelection
function.
We also might again have an object of our choice to be this
inside the outer callback:
var thisArg = { custom: 'object' };
var globalVar = 'global';
productLineSelect.addEventListener('change', function(event) {
var localVar = 'local';
getSelection(event, this, globalVar, localVar);
}.bind(thisArg), false);
You have two ways:
First go to the particular path of Android SDK:
1) Open your command prompt and traverse to the platform-tools directory through it such as
$ cd Frameworks\Android-Sdk\platform-tools
2) Run your adb commands now such as to know that your adb is working properly :
$ adb devices OR adb logcat OR simply adb
Second way is :
1) Right click on your My Computer.
2) Open Environment variables.
3) Add new variable to your System PATH variable(Add if not exist otherwise no need to add new variable if already exist).
4) Add path of platform-tools directory to as value of this variable such as C:\Program Files\android-sdk\platform-tools.
5) Restart your computer once.
6) Now run the above adb commands such adb devices or other adb commands from anywhere in command prompt.
Also on you can fire a command on terminal setx PATH "%PATH%;C:\Program Files\android-sdk\platform-tools"
After formatting the previous answer to my own code, I have found an efficient way to copy all necessary data if you are attempting to paste the values returned via AutoFilter
to a separate sheet.
With .Range("A1:A" & LastRow)
.Autofilter Field:=1, Criteria1:="=*" & strSearch & "*"
.Offset(1,0).SpecialCells(xlCellTypeVisible).Cells.Copy
Sheets("Sheet2").activate
DestinationRange.PasteSpecial
End With
In this block, the AutoFilter
finds all of the rows that contain the value of strSearch
and filters out all of the other values. It then copies the cells (using offset in case there is a header), opens the destination sheet and pastes the values to the specified range on the destination sheet.
Why not?
#header {
text-align: center;
}
#header ul {
display: inline;
}
Create a BufferedImage from file and make it TYPE_INT_RGB
import java.io.*;
import java.awt.image.*;
import javax.imageio.*;
public class Main{
public static void main(String args[]){
try{
BufferedImage img = new BufferedImage(
500, 500, BufferedImage.TYPE_INT_RGB );
File f = new File("MyFile.png");
int r = 5;
int g = 25;
int b = 255;
int col = (r << 16) | (g << 8) | b;
for(int x = 0; x < 500; x++){
for(int y = 20; y < 300; y++){
img.setRGB(x, y, col);
}
}
ImageIO.write(img, "PNG", f);
}
catch(Exception e){
e.printStackTrace();
}
}
}
This paints a big blue streak across the top.
If you want it ARGB, do it like this:
try{
BufferedImage img = new BufferedImage(
500, 500, BufferedImage.TYPE_INT_ARGB );
File f = new File("MyFile.png");
int r = 255;
int g = 10;
int b = 57;
int alpha = 255;
int col = (alpha << 24) | (r << 16) | (g << 8) | b;
for(int x = 0; x < 500; x++){
for(int y = 20; y < 30; y++){
img.setRGB(x, y, col);
}
}
ImageIO.write(img, "PNG", f);
}
catch(Exception e){
e.printStackTrace();
}
Open up MyFile.png, it has a red streak across the top.
Modern linux systems will normally only have entries in /dev for devices that exist, so going through hda* and sda* as you suggest would work fairly well.
Otherwise, there may be something in /proc you can use. From a quick look in there, I'd have said /proc/partitions looks like it could do what you need.
For completeness: Enthought has a Python distribution which includes SciPy; however, it's not free. Caveat: I've never used it.
Update: This answer had been long forgotten until an upvote brought me back to it. At this time, I'll second endolith's suggestion of Anaconda, which is free.
In xcode 7, there is a field under Apple LLVM 7.0 - preprocessing, which called "Preprocessors Macros Not Used In Precompiled..." I put DEBUG in front of Debug and it works for me by using below code:
#ifdef DEBUG
NSString* const kURL = @"http://debug.com";
#else
NSString* const kURL = @"http://release.com";
#endif
Lets see, numeric (3,2). That means you have 3 places for data and two of them are to the right of the decimal leaving only one to the left of the decimal. 15 has two places to the left of the decimal. BTW if you might have 100 as a value I'd increase that to numeric (5, 2)
<input name="searchbox" onfocus="if (this.value=='search') this.value = ''" type="text" value="search">
A better example would be the SO search button! That's where I got this code from. Viewing page source is a valuable tool.
I like lots of these suggestions, but for now I think I'll stick with LinkedHashMap
+ Collections.synchronizedMap
. If I do revisit this in the future, I'll probably work on extending ConcurrentHashMap
in the same way LinkedHashMap
extends HashMap
.
UPDATE:
By request, here's the gist of my current implementation.
private class LruCache<A, B> extends LinkedHashMap<A, B> {
private final int maxEntries;
public LruCache(final int maxEntries) {
super(maxEntries + 1, 1.0f, true);
this.maxEntries = maxEntries;
}
/**
* Returns <tt>true</tt> if this <code>LruCache</code> has more entries than the maximum specified when it was
* created.
*
* <p>
* This method <em>does not</em> modify the underlying <code>Map</code>; it relies on the implementation of
* <code>LinkedHashMap</code> to do that, but that behavior is documented in the JavaDoc for
* <code>LinkedHashMap</code>.
* </p>
*
* @param eldest
* the <code>Entry</code> in question; this implementation doesn't care what it is, since the
* implementation is only dependent on the size of the cache
* @return <tt>true</tt> if the oldest
* @see java.util.LinkedHashMap#removeEldestEntry(Map.Entry)
*/
@Override
protected boolean removeEldestEntry(final Map.Entry<A, B> eldest) {
return super.size() > maxEntries;
}
}
Map<String, String> example = Collections.synchronizedMap(new LruCache<String, String>(CACHE_SIZE));
public class UserCustomAdapter extends ArrayAdapter<User> {
Context context;
int layoutResourceId;
ArrayList<User> data = new ArrayList<User>();
public UserCustomAdapter(Context context, int layoutResourceId,
ArrayList<User> data) {
super(context, layoutResourceId, data);
this.layoutResourceId = layoutResourceId;
this.context = context;
this.data = data;
}
@Override
public View getView(int position, View convertView, ViewGroup parent) {
View row = convertView;
UserHolder holder = null;
if (row == null) {
LayoutInflater inflater = ((Activity) context).getLayoutInflater();
row = inflater.inflate(layoutResourceId, parent, false);
holder = new UserHolder();
holder.textName = (TextView) row.findViewById(R.id.textView1);
holder.textAddress = (TextView) row.findViewById(R.id.textView2);
holder.textLocation = (TextView) row.findViewById(R.id.textView3);
holder.btnEdit = (Button) row.findViewById(R.id.button1);
holder.btnDelete = (Button) row.findViewById(R.id.button2);
row.setTag(holder);
} else {
holder = (UserHolder) row.getTag();
}
User user = data.get(position);
holder.textName.setText(user.getName());
holder.textAddress.setText(user.getAddress());
holder.textLocation.setText(user.getLocation());
holder.btnEdit.setOnClickListener(new OnClickListener() {
@Override
public void onClick(View v) {
// TODO Auto-generated method stub
Log.i("Edit Button Clicked", "**********");
Toast.makeText(context, "Edit button Clicked",
Toast.LENGTH_LONG).show();
}
});
holder.btnDelete.setOnClickListener(new OnClickListener() {
@Override
public void onClick(View v) {
// TODO Auto-generated method stub
Log.i("Delete Button Clicked", "**********");
Toast.makeText(context, "Delete button Clicked",
Toast.LENGTH_LONG).show();
}
});
return row;
}
static class UserHolder {
TextView textName;
TextView textAddress;
TextView textLocation;
Button btnEdit;
Button btnDelete;
}
}
Hey Please have a look here-
I have same answer here on my blog ..
I found this in the Cheetah source code (here)
htmlCodes = [
['&', '&'],
['<', '<'],
['>', '>'],
['"', '"'],
]
htmlCodesReversed = htmlCodes[:]
htmlCodesReversed.reverse()
def htmlDecode(s, codes=htmlCodesReversed):
""" Returns the ASCII decoded version of the given HTML string. This does
NOT remove normal HTML tags like <p>. It is the inverse of htmlEncode()."""
for code in codes:
s = s.replace(code[1], code[0])
return s
not sure why they reverse the list, I think it has to do with the way they encode, so with you it may not need to be reversed. Also if I were you I would change htmlCodes to be a list of tuples rather than a list of lists... this is going in my library though :)
i noticed your title asked for encode too, so here is Cheetah's encode function.
def htmlEncode(s, codes=htmlCodes):
""" Returns the HTML encoded version of the given string. This is useful to
display a plain ASCII text string on a web page."""
for code in codes:
s = s.replace(code[0], code[1])
return s
I have a button for a prompt that on click it opens the display dialogue and then I can write what I want to search and it goes to that location on the page. It uses javascript to answer the header.
On the .html file I have:
<button onclick="myFunction()">Load Prompt</button>
<span id="test100"><h4>Hello</h4></span>
On the .js file I have
function myFunction() {
var input = prompt("list or new or quit");
while(input !== "quit") {
if(input ==="test100") {
window.location.hash = 'test100';
return;
// else if(input.indexOf("test100") >= 0) {
// window.location.hash = 'test100';
// return;
// }
}
}
}
When I write test100 into the prompt, then it will go to where I have placed span id="test100" in the html file.
I use Google Chrome.
Note: This idea comes from linking on the same page using
<a href="#test100">Test link</a>
which on click will send to the anchor. For it to work multiple times, from experience need to reload the page.
Credit to the people at stackoverflow (and possibly stackexchange, too) can't remember how I gathered all the bits and pieces. ?
You can set data to session simply like this in Codeigniter:
$this->load->library('session');
$this->session->set_userdata(array(
'user_id' => $user->uid,
'username' => $user->username,
'groupid' => $user->groupid,
'date' => $user->date_cr,
'serial' => $user->serial,
'rec_id' => $user->rec_id,
'status' => TRUE
));
and you can get it like this:
$u_rec_id = $this->session->userdata('rec_id');
$serial = $this->session->userdata('serial');
<form id='formName' name='formName' onsubmit='redirect();return false;'>
<div class="style7">
<input type='text' id='userInput' name='userInput' value=''>
<img src="BUTTON1.JPG" onclick="document.forms['formName'].submit();">
</div>
</form>
Here is a simple solution based on threads which:
select
).stdout
and stderr
asynchronouly.asyncio
(which may conflict with other libraries).printer.py
import time
import sys
sys.stdout.write("Hello\n")
sys.stdout.flush()
time.sleep(1)
sys.stdout.write("World!\n")
sys.stdout.flush()
time.sleep(1)
sys.stderr.write("That's an error\n")
sys.stderr.flush()
time.sleep(2)
sys.stdout.write("Actually, I'm fine\n")
sys.stdout.flush()
time.sleep(1)
reader.py
import queue
import subprocess
import sys
import threading
def enqueue_stream(stream, queue, type):
for line in iter(stream.readline, b''):
queue.put(str(type) + line.decode('utf-8'))
stream.close()
def enqueue_process(process, queue):
process.wait()
queue.put('x')
p = subprocess.Popen('python printer.py', stdout=subprocess.PIPE, stderr=subprocess.PIPE)
q = queue.Queue()
to = threading.Thread(target=enqueue_stream, args=(p.stdout, q, 1))
te = threading.Thread(target=enqueue_stream, args=(p.stderr, q, 2))
tp = threading.Thread(target=enqueue_process, args=(p, q))
te.start()
to.start()
tp.start()
while True:
line = q.get()
if line[0] == 'x':
break
if line[0] == '2': # stderr
sys.stdout.write("\033[0;31m") # ANSI red color
sys.stdout.write(line[1:])
if line[0] == '2':
sys.stdout.write("\033[0m") # reset ANSI code
sys.stdout.flush()
tp.join()
to.join()
te.join()
For those who do not have 4.5, Here is my library function that reads json. It requires a project reference to System.Web.Extensions
.
using System.Web.Script.Serialization;
public object DeserializeJson<T>(string Json)
{
JavaScriptSerializer JavaScriptSerializer = new JavaScriptSerializer();
return JavaScriptSerializer.Deserialize<T>(Json);
}
Usually, json is written out based on a contract. That contract can and usually will be codified in a class (T
). Sometimes you can take a word from the json and search the object browser to find that type.
Example usage:
Given the json
{"logEntries":[],"value":"My Code","text":"My Text","enabled":true,"checkedIndices":[],"checkedItemsTextOverflows":false}
You could parse it into a RadComboBoxClientState
object like this:
string ClientStateJson = Page.Request.Form("ReportGrid1_cboReportType_ClientState");
RadComboBoxClientState RadComboBoxClientState = DeserializeJson<RadComboBoxClientState>(ClientStateJson);
return RadComboBoxClientState.Value;
You can add as many headers as you like by calling addHeaderView() multiple times. You have to do it before setting the adapter to the list view.
And yes you can add header something like this way:
LayoutInflater inflater = getLayoutInflater();
ViewGroup header = (ViewGroup)inflater.inflate(R.layout.header, myListView, false);
myListView.addHeaderView(header, null, false);
In my case, the correct menu path was:
File > Default settings > Project Interpreter
You can use the action 'Fix doc comment'. It doesn't have a default shortcut, but you can assign the Alt+Shift+J shortcut to it in the Keymap, because this shortcut isn't used for anything else.
By default, you can also press Ctrl+Shift+A two times and begin typing Fix doc comment
in order to find the action.
It is explained here http://erabhinavrana.blogspot.in/2014/01/how-to-execute-update-query-by-applying.html
It also has other useful code snippets which are commonly used.
update <dbname of 1st table>.<table name of 1st table> A INNER JOIN <dbname of 2nd table>.<table name of 2nd table> RA ON A.<field name of table 1>=RA.<field name of table 2> SET A.<field name of table 1 to be updated>=RA.<field name of table 2 to set value in table 1>
Replace data in <>
with your appropriate values.
That's It. source:
This is advice, not an answer: You are much, much better off using dedicated mailing list software. mailman is an oft-used example, but something as simple as mlmmj may suffice. Sending mass mails is actually a more difficult task than it actually appears to be. Not only do you have to send the mails, you also have to keep track of "dead" addresses to avoid your mail, or worse, your mailserver, being marked as spam. You have to handle people unsubscribing for much the same reason.
You can implement these things yourself, but particularly bounce handling is difficult and unrewarding work. Using a mailing list manager will make things a lot easier.
As for how to make your mail palatable for yahoo, that is another matter entirely. For all its faults, they seem to put great stock in SPF and DomainKey. You probably will have to implement them, which will require co-operation from your mail server administrator.
As bmargulies mentioned:
Preferences>Java>Editor>Templates>New...
Now, type psvm then Ctrl + Space
on Mac or Windows.
Ctrl+P and Type "ext install cpptools" it will install everything you need to debug c and c++.
Debugging in VS code is very complete, but if you just need to compile and run: https://code.visualstudio.com/docs/languages/cpp
Look in the debugging section and it will explain everything
First of all, checked
can have a value of checked
, or an empty string.
$("input:checkbox").uniform();
$('#check1').live('click', function() {
$('#check2').attr('checked', 'checked').uniform();
});
I'm using cocoapods version 1.0.1
and using pod update name-of-pod
works perfectly. No other pods are updated, just the specific one you enter.
The current answers contain a lot of hand-rolled or library code. This is not necessary.
Use JSON.parse('{"a":1}')
to create a plain object.
Use one of the standardized functions to set the prototype:
Object.assign(new Foo, { a: 1 })
Object.setPrototypeOf({ a: 1 }, Foo.prototype)
If we follow the w3 org table reference ,and follow the Permitted Contents section, we can see that the table
tags takes tbody
(optional) and tr
as the only permitted contents.
So i reckon it is safe to say we cannot add a div
tag which is a flow content as a direct child of the table
which i understand is what you meant when you had said above a tr
.
Having said that , as we follow the above link , you will find that it is safe to use div
s inside the td
element as seen here
Try:
assertThat(myClass.getMyItems(),
hasItem(hasProperty("YourProperty", is("YourValue"))));
Input: 0 0.1 1000
=FIXED(E5,2)
Output: 0.00 0.10 1,000.00
=TEXT(E5,"0.00")
Output: 0.00 0.10 1000.00
Note: As you can see FIXED add a coma after a thousand, where TEXT does not.
if you're turned off by the extra line, you can use a wrapper function like so:
def with_iter(iterable):
with iterable as iter:
for item in iter:
yield item
for line in with_iter(open('...')):
...
in Python 3.3, the yield from
statement would make this even shorter:
def with_iter(iterable):
with iterable as iter:
yield from iter
The warning appears only because the demo code has:
function TabPanel(props) {
const { children, value, index, ...other } = props;
return (
<div
role="tabpanel"
hidden={value !== index}
id={`simple-tabpanel-${index}`}
aria-labelledby={`simple-tab-${index}`}
{...other}
>
{value === index && (
<Box p={3}> // <==NOTE P TAG HERE
<Typography>{children}</Typography>
</Box>
)}
</div>
);
}
Changing it like this takes care of it:
function TabPanel(props) {
const {children, value, index, classes, ...other} = props;
return (
<div
role="tabpanel"
hidden={value !== index}
id={`simple-tabpanel-${index}`}
aria-labelledby={`simple-tab-${index}`}
{...other}
>
{value === index && (
<Container>
<Box> // <== P TAG REMOVED
{children}
</Box>
</Container>
)}
</div>
);
}
Basically you have two options
scale_x_continuous(limits = c(-5000, 5000))
or
coord_cartesian(xlim = c(-5000, 5000))
Where the first removes all data points outside the given range and the second only adjusts the visible area. In most cases you would not see the difference, but if you fit anything to the data it would probably change the fitted values.
You can also use the shorthand function xlim
(or ylim
), which like the first option removes data points outside of the given range:
+ xlim(-5000, 5000)
For more information check the description of coord_cartesian
.
The RStudio cheatsheet for ggplot2
makes this quite clear visually. Here is a small section of that cheatsheet:
Distributed under CC BY.
The chosen answer is outdated, same goes to meltingice /ajax-chosen plugin.
With Select2 plugin got many bugs which is i can't resolve it.
Here my answer for this question.
I integrated my solution with function trigger after user type. Thanks to this answer : https://stackoverflow.com/a/5926782/4319179.
//setup before functions
var typingTimer; //timer identifier
var doneTypingInterval = 2000; //time in ms (2 seconds)
var selectID = 'YourSelectId'; //Hold select id
var selectData = []; // data for unique id array
//on keyup, start the countdown
$('#' + selectID + '_chosen .chosen-choices input').keyup(function(){
// Change No Result Match text to Searching.
$('#' + selectID + '_chosen .no-results').html('Searching = "'+ $('#' + selectID + '_chosen .chosen-choices input').val() + '"');
clearTimeout(typingTimer); //Refresh Timer on keyup
if ($('#' + selectID + '_chosen .chosen-choices input').val()) {
typingTimer = setTimeout(doneTyping, doneTypingInterval); //Set timer back if got value on input
}
});
//user is "finished typing," do something
function doneTyping () {
var inputData = $('#' + selectID + '_chosen .chosen-choices input').val(); //get input data
$.ajax({
url: "YourUrl",
data: {data: inputData},
type:'POST',
dataType: "json",
beforeSend: function(){
// Change No Result Match to Getting Data beforesend
$('#' + selectID + '_chosen .no-results').html('Getting Data = "'+$('#' + selectID + '_chosen .chosen-choices input').val()+'"');
},
success: function( data ) {
// iterate data before append
$.map( data, function( item ) {
// matching data eg: by id or something unique; if data match: <option> not append - else: append <option>
// This will prevent from select the same thing twice.
if($.inArray(item.attr_hash,selectData) == -1){
// if not match then append in select
$('#' + selectID ).append('<option id="'+item.id+'" data-id = "'+item.id+'">' + item.data + '</option>');
}
});
// Update chosen again after append <option>
$('#' + selectID ).trigger("chosen:updated");
}
});
}
// Chosen event listen on input change eg: after select data / deselect this function will be trigger
$('#' + selectID ).on('change', function() {
// get select jquery object
var domArray = $('#' + selectID ).find('option:selected');
// empty array data
selectData = [];
for (var i = 0, length = domArray.length; i < length; i++ ){
// Push unique data to array (for matching purpose)
selectData.push( $(domArray[i]).data('id') );
}
// Replace select <option> to only selected option
$('#' + selectID ).html(domArray);
// Update chosen again after replace selected <option>
$('#' + selectID ).trigger("chosen:updated");
});
In my case, I have done following:
extension UITextField {
@IBInspectable var placeHolderColor: UIColor? {
get {
if let color = self.attributedPlaceholder?.attribute(.foregroundColor, at: 0, effectiveRange: nil) as? UIColor {
return color
}
return nil
}
set (setOptionalColor) {
if let setColor = setOptionalColor {
let string = self.placeholder ?? ""
self.attributedPlaceholder = NSAttributedString(string: string , attributes:[NSAttributedString.Key.foregroundColor: setColor])
}
}
}
}
_.merge(object, [sources], [customizer], [thisArg])
_.assign(object, [sources], [customizer], [thisArg])
_.extend(object, [sources], [customizer], [thisArg])
_.defaults(object, [sources])
_.defaultsDeep(object, [sources])
_.extend
is an alias for _.assign
, so they are identicalnull
the same_.defaults
and _.defaultsDeep
processes the arguments in reverse order compared to the others (though the first argument is still the target object)_.merge
and _.defaultsDeep
will merge child objects and the others will overwrite at the root level_.assign
and _.extend
will overwrite a value with undefined
_.assign ({}, { a: 'a' }, { a: 'bb' }) // => { a: "bb" }
_.merge ({}, { a: 'a' }, { a: 'bb' }) // => { a: "bb" }
_.defaults ({}, { a: 'a' }, { a: 'bb' }) // => { a: "a" }
_.defaultsDeep({}, { a: 'a' }, { a: 'bb' }) // => { a: "a" }
_.assign
handles undefined
but the others will skip it_.assign ({}, { a: 'a' }, { a: undefined }) // => { a: undefined }
_.merge ({}, { a: 'a' }, { a: undefined }) // => { a: "a" }
_.defaults ({}, { a: undefined }, { a: 'bb' }) // => { a: "bb" }
_.defaultsDeep({}, { a: undefined }, { a: 'bb' }) // => { a: "bb" }
null
the same_.assign ({}, { a: 'a' }, { a: null }) // => { a: null }
_.merge ({}, { a: 'a' }, { a: null }) // => { a: null }
_.defaults ({}, { a: null }, { a: 'bb' }) // => { a: null }
_.defaultsDeep({}, { a: null }, { a: 'bb' }) // => { a: null }
_.merge
and _.defaultsDeep
will merge child objects_.assign ({}, {a:{a:'a'}}, {a:{b:'bb'}}) // => { "a": { "b": "bb" }}
_.merge ({}, {a:{a:'a'}}, {a:{b:'bb'}}) // => { "a": { "a": "a", "b": "bb" }}
_.defaults ({}, {a:{a:'a'}}, {a:{b:'bb'}}) // => { "a": { "a": "a" }}
_.defaultsDeep({}, {a:{a:'a'}}, {a:{b:'bb'}}) // => { "a": { "a": "a", "b": "bb" }}
_.assign ({}, {a:['a']}, {a:['bb']}) // => { "a": [ "bb" ] }
_.merge ({}, {a:['a']}, {a:['bb']}) // => { "a": [ "bb" ] }
_.defaults ({}, {a:['a']}, {a:['bb']}) // => { "a": [ "a" ] }
_.defaultsDeep({}, {a:['a']}, {a:['bb']}) // => { "a": [ "a" ] }
a={a:'a'}; _.assign (a, {b:'bb'}); // a => { a: "a", b: "bb" }
a={a:'a'}; _.merge (a, {b:'bb'}); // a => { a: "a", b: "bb" }
a={a:'a'}; _.defaults (a, {b:'bb'}); // a => { a: "a", b: "bb" }
a={a:'a'}; _.defaultsDeep(a, {b:'bb'}); // a => { a: "a", b: "bb" }
Note: As @Mistic pointed out, Lodash treats arrays as objects where the keys are the index into the array.
_.assign ([], ['a'], ['bb']) // => [ "bb" ]
_.merge ([], ['a'], ['bb']) // => [ "bb" ]
_.defaults ([], ['a'], ['bb']) // => [ "a" ]
_.defaultsDeep([], ['a'], ['bb']) // => [ "a" ]
_.assign ([], ['a','b'], ['bb']) // => [ "bb", "b" ]
_.merge ([], ['a','b'], ['bb']) // => [ "bb", "b" ]
_.defaults ([], ['a','b'], ['bb']) // => [ "a", "b" ]
_.defaultsDeep([], ['a','b'], ['bb']) // => [ "a", "b" ]
There is a simple way to resolve that. At least it works for me. In your iPhone Device Go to Setting > Developer > click in “Clear Trusted Computer” Type the passcode required And done!!!
The simplest way that I found.
I think you probably should not use ternary operator in php. Consider next example:
<?php
function f1($n) {
var_dump("first funct");
return $n == 1;
}
function f2($n) {
var_dump("second funct");
return $n == 2;
}
$foo = 1;
$a = (f1($foo)) ? "uno" : (f2($foo)) ? "dos" : "tres";
print($a);
How do you think, what $a
variable will contain? (hint: dos)
And it will remain the same even if $foo
variable will be assigned to 2.
To make things better you should either refuse to using this operator or surround right part with braces in the following way:
$a = (f1($foo)) ? "uno" : ((f2($foo)) ? "dos" : "tres");
Best way to pass data from child to parent component
child component
handleLanguageCode=()=>(langValue) {
this.props.sendDatatoParent(langValue)
}
Parent
<Parent sendDatatoParent={ data => this.setState({item: data}) } />;
I faced the same issue because I was querying db for more than 1000 iterations. I have used try and finally in my code. But was still getting error.
To solve this I just logged into oracle db and ran below query:
ALTER SYSTEM SET open_cursors = 8000 SCOPE=BOTH;
And this solved my problem immediately.
Open in google sheets and then download from sheets as CSV and then reupload to drive. Then you can Open CSV file from python.
Another way this can be accomplished, and have not really seen any others give it as an option, is to instead use an anchor as a container around your input and label, and handle the removal of the label via some color trickory, the #hashtag, and the css a:visited. (jsfiddle at the bottom)
Your HTML would look like this:
<a id="Trickory" href="#OnlyHappensOnce">
<input type="text" value="" id="email1" class="inputfield_ui" />
<label>Email address 1</label>
</a>
And your CSS, something like this:
html, body {margin:0px}
a#Trickory {color: #CCC;} /* Actual Label Color */
a#Trickory:visited {color: #FFF;} /* Fake "Turn Off" Label */
a#Trickory:visited input {border-color: rgb(238, 238, 238);} /* Make Sure We Dont Mess With The Border Of Our Input */
a#Trickory input:focus + label {display: none;} /* "Turn Off" Label On Focus */
a#Trickory input {
width:95%;
z-index:3;
position:relative;
background-color:transparent;
}
a#Trickory label {
position:absolute;
pointer-events: none;
display:block;
top:3px;
left:4px;
z-index:1;
}
You can see this working over at jsfiddle, note that this solution only allows the user to select the field once, before it removes the label for good. Maybe not the solution you want, but definitely an available solution out there that I have not seen others mention. If you want to experiment multiple times, just change your #hashtag to a new 'non-visited' tag.
SAP is just a company name and Abap or Abap/4 is a language programming. SAP company has a lot of products: ERP(material, sales, costs, financial), CRM, SRM, SCM and all of them are customizing and programmed with ABAP and Java. Basically is it.
If you use mvn packaging such as jar or war, use:
getClass().getPackage().getImplementationVersion()
It reads a property "Implementation-Version" of the generated META-INF/MANIFEST.MF (that is set to the pom.xml's version) in the archive.
Using FORMAT function in new versions of SQL Server is much simpler and allows much more control:
FORMAT(yournumber, '#,##0.0%')
Benefit of this is you can control additional things like thousand separators and you don't get that space between the number and '%'.
For those still experimenting, npm install react-html-parser
When I installed it it had 123628 weekly downloads.
import ReactHtmlParser from 'react-html-parser'
<div>{ReactHtmlParser(htmlString)}</div>
This is MUCH easier with the new iOS Simulator that comes with Xcode 6+ (iOS Simulator 8.1 and above.) Now all you have to do is drag one or more photos onto the iOS Simulator window, and instead of opening Safari, the Photos app opens, and instantly adds all dragged-in photos to the device.
Adding an actionable aspect to a few of the other answers:
Both can give exit codes - default or defined by the function, and the only 'default' is zero for success for both exit and return. Any status can have a custom number 0-255, including for success.
Return is used often for interactive scripts that run in the current shell, called with . script.sh
for example, and just returns you to your calling shell. The return code is then accessible to the calling shell - $?
gives you the defined return status.
Exit in this case also closes your shell (including SSH connections, if that's how you're working).
Exit is necessary if the script is executable and called from another script or shell and runs in a subshell. The exit codes then are accessible to the calling shell - return would give an error in this case.
use the val() function
This trick works for me. Hope this could help you. Let's save the followings as checkRunningProcess.sh
#!/bin/bash
ps_out=`ps -ef | grep $1 | grep -v 'grep' | grep -v $0`
result=$(echo $ps_out | grep "$1")
if [[ "$result" != "" ]];then
echo "Running"
else
echo "Not Running"
fi
Make the checkRunningProcess.sh executable.And then use it.
Example to use.
20:10 $ checkRunningProcess.sh proxy.py
Running
20:12 $ checkRunningProcess.sh abcdef
Not Running
Yes, the first means "match all strings that start with a letter", the second means "match all strings that contain a non-letter". The caret ("^") is used in two different ways, one to signal the start of the text, one to negate a character match inside square brackets.
You don't assign values outside of the if statements ... and it is possible that credit might be something other than 0, 1, 2, or 3, as @iomaxx noted.
Try changing the separate if statements to a single if/else if/else if/else. Or assign default values up at the top.
background-image
instead of background
This works in Opera : http://jsfiddle.net/ZNsbU/5/
But it doesn't work in FF5 nor IE8. (yay for outdated browsers :D )
body {
background:url(http://www.google.com/intl/en_com/images/srpr/logo3w.png) 400px 200px / 600px 400px no-repeat;
}
You could do it like this :
body {
background:url(http://www.google.com/intl/en_com/images/srpr/logo3w.png) 400px 400px no-repeat;
background-size:20px 20px
}
Which works in FF5 and Opera but not in IE8.
Difference between last but one commit and last commit (plus current state, if any):
git diff HEAD~
or even (easier to type)
git diff @~
where @
is the synonim for HEAD
of current branch and ~
means "give me the parent of mentioned revision".
I develop on Windows and Mac/Linux at the same time and I avoid this ^M-error by simply running my scripts as I do in Windows:
$ php ./my_script
No need to change line endings.
In ES6 use:
import path from 'path';
const __dirname = path.resolve();
also available when node is called with --experimental-modules
It basically means that the object implements the __getitem__()
method. In other words, it describes objects that are "containers", meaning they contain other objects. This includes strings, lists, tuples, and dictionaries.
Instead of downloading separate java files as suggested by Veer, you could just add this JAR file to your package.
To add the jar file to your project in Eclipse, do the following:
appparently it's a XLS file and not a CSV file as http://www.garykessler.net/library/file_sigs.html confirm
way of getting home directory of current user is
String currentUsersHomeDir = System.getProperty("user.home");
and to append path separator
String otherFolder = currentUsersHomeDir + File.separator + "other";
The system-dependent default name-separator character, represented as a string for convenience. This string contains a single character, namely separatorChar.
I haven't been able to find much evidence as to why you would want to choose C over C++.
You can hardly call what I'm about to say evidence; it's just my opinion.
People like C because it fits nicely inside the mind of the prgrammer.
There are many complex rules of C++ [when do you need virtual destructors, when can you call virtual methods in a constructor, how does overloading and overriding interact, ...], and to master them all takes a lot of effort. Also, between references, operator overloading and function overloading, understanding a piece of code can require you to understand other code that may or may not be easy to find.
A different question in why organizations would prefer C over C++. I don't know that, I'm just a people ;-)
In the defense of C++, it does bring valuable features to the table; the one I value most is probably parametric('ish) polymorphism, though: operations and types that takes one or more types as arguments.
When I tried to compute w^T * x
using numpy, it was super confusing for me as well. In fact, I couldn't implement it myself. So, this is one of the few gotchas in NumPy that we need to acquaint ourselves with.
As far as 1D array is concerned, there is no distinction between a row vector and column vector. They are exactly the same.
Look at the following examples, where we get the same result in all cases, which is not true in (the theoretical sense of) linear algebra:
In [37]: w
Out[37]: array([0, 1, 2, 3, 4])
In [38]: x
Out[38]: array([1, 2, 3, 4, 5])
In [39]: np.dot(w, x)
Out[39]: 40
In [40]: np.dot(w.transpose(), x)
Out[40]: 40
In [41]: np.dot(w.transpose(), x.transpose())
Out[41]: 40
In [42]: np.dot(w, x.transpose())
Out[42]: 40
With that information, now let's try to compute the squared length of the vector |w|^2
.
For this, we need to transform w
to 2D array.
In [51]: wt = w[:, np.newaxis]
In [52]: wt
Out[52]:
array([[0],
[1],
[2],
[3],
[4]])
Now, let's compute the squared length (or squared magnitude) of the vector w
:
In [53]: np.dot(w, wt)
Out[53]: array([30])
Note that we used w
, wt
instead of wt
, w
(like in theoretical linear algebra) because of shape mismatch with the use of np.dot(wt, w). So, we have the squared length of the vector as [30]
. Maybe this is one of the ways to distinguish (numpy's interpretation of) row and column vector?
And finally, did I mention that I figured out the way to implement w^T * x
? Yes, I did :
In [58]: wt
Out[58]:
array([[0],
[1],
[2],
[3],
[4]])
In [59]: x
Out[59]: array([1, 2, 3, 4, 5])
In [60]: np.dot(x, wt)
Out[60]: array([40])
So, in NumPy, the order of the operands is reversed, as evidenced above, contrary to what we studied in theoretical linear algebra.
P.S. : potential gotchas in numpy
These parameters are typically used for proxy functions, so the proxy can pass any input parameter to the target function.
def foo(bar=2, baz=5):
print bar, baz
def proxy(x, *args, **kwargs): # reqire parameter x and accept any number of additional arguments
print x
foo(*args, **kwargs) # applies the "non-x" parameter to foo
proxy(23, 5, baz='foo') # calls foo with bar=5 and baz=foo
proxy(6)# calls foo with its default arguments
proxy(7, bar='asdas') # calls foo with bar='asdas' and leave baz default argument
But since these parameters hide the actual parameter names, it is better to avoid them.
There's surprisingly simple way of reading resource by string:
ResourceNamespace.ResxFileName.ResourceManager.GetString("ResourceKey")
It's clean and elegant solution for reading resources by keys where "dot notation" cannot be used (for instance when resource key is persisted in the database).
For non-preemptive system,
waitingTime = startTime - arrivalTime
turnaroundTime = burstTime + waitingTime = finishTime- arrivalTime
startTime = Time at which the process started executing
finishTime = Time at which the process finished executing
You can keep track of the current time elapsed in the system(timeElapsed
). Assign all processors to a process in the beginning, and execute until the shortest process is done executing. Then assign this processor which is free to the next process in the queue. Do this until the queue is empty and all processes are done executing. Also, whenever a process starts executing, recored its startTime
, when finishes, record its finishTime
(both same as timeElapsed
). That way you can calculate what you need.
Use PHP Document Object Model:
<?php
$str = '<h1>T1</h1>Lorem ipsum.<h1>T2</h1>The quick red fox...<h1>T3</h1>... jumps over the lazy brown FROG';
$DOM = new DOMDocument;
$DOM->loadHTML($str);
//get all H1
$items = $DOM->getElementsByTagName('h1');
//display all H1 text
for ($i = 0; $i < $items->length; $i++)
echo $items->item($i)->nodeValue . "<br/>";
?>
This outputs as:
T1
T2
T3
[EDIT]: After OP Clarification:
If you want the content like Lorem ipsum. etc, you can directly use this regex:
<?php
$str = '<h1>T1</h1>Lorem ipsum.<h1>T2</h1>The quick red fox...<h1>T3</h1>... jumps over the lazy brown FROG';
echo preg_replace("#<h1.*?>.*?</h1>#", "", $str);
?>
this outputs:
Lorem ipsum.The quick red fox...... jumps over the lazy brown FROG
While this question is quite old I just want to add another possibility of doing a merge while keeping keys.
Besides adding key/values to existing arrays using the +
sign you could do an array_replace
.
$a = array('foo' => 'bar', 'some' => 'string');
$b = array(42 => 'answer to the life and everything', 1337 => 'leet');
$merged = array_replace($a, $b);
The result will be:
Array
(
[foo] => bar
[some] => string
[42] => answer to the life and everything
[1337] => leet
)
Same keys will be overwritten by the latter array.
There is also an array_replace_recursive
, which do this for subarrays, too.
Unfortunately, (for practical and security reasons I guess), if you want to add/copy local content, it must be located under the same root path than the Dockerfile
.
From the documentation:
The <src> path must be inside the context of the build; you cannot ADD ../something/something, because the first step of a docker build is to send the context directory (and subdirectories) to the docker daemon.
EDIT: There's now an option (-f
) to set the path of your Dockerfile ; it can be used to achieve what you want, see @Boedy 's response.
Unfortunately, WebKit browsers do not support styling of <option>
tags yet, except for color
and background-color
.
The most widely used cross browser solution is to use <ul>
/ <li>
and style them using CSS. Frameworks like Bootstrap do this well.
Signalling a pod on config map update is a feature in the works (https://github.com/kubernetes/kubernetes/issues/22368).
You can always write a custom pid1 that notices the confimap has changed and restarts your app.
You can also eg: mount the same config map in 2 containers, expose a http health check in the second container that fails if the hash of config map contents changes, and shove that as the liveness probe of the first container (because containers in a pod share the same network namespace). The kubelet will restart your first container for you when the probe fails.
Of course if you don't care about which nodes the pods are on, you can simply delete them and the replication controller will "restart" them for you.
You can use vanilla javascript by simply writing:
var width = el.clientWidth;
You could also use this to get the width of the document as follows:
var docWidth = document.documentElement.clientWidth || document.body.clientWidth;
Source: MDN
You can also get the width of the full window, including the scrollbar, as follows:
var fullWidth = window.innerWidth;
However this is not supported by all browsers, so as a fallback, you may want to use docWidth
as above, and add on the scrollbar width.
Source: MDN
This can achieve using two SQL functions- SUBSTRING and CHARINDEX
You can read strings to a variable as shown in the above answers, or can add it to a SELECT statement as below:
SELECT SUBSTRING('Net Operating Loss - 2007' ,0, CHARINDEX('-','Net Operating Loss - 2007'))
Detecting and embedding Flash within a web document is a surprisingly difficult task.
I was very disappointed with the quality and non-standards compliant markup generated from both SWFObject and Adobe's solutions. Additionally, my testing found Adobe's auto updater to be inconsistent and unreliable.
The JavaScript Flash Detection Library (Flash Detect) and JavaScript Flash HTML Generator Library (Flash TML) are a legible, maintainable and standards compliant markup solution.
-"Luke read the source!"
Yes, you can pass predicate to sort. That would be your reverse implementation.
Xcode 9 introduced new tricks with XCTWaiter
Test case waits explicitly
wait(for: [documentExpectation], timeout: 10)
Waiter instance delegates to test
XCTWaiter(delegate: self).wait(for: [documentExpectation], timeout: 10)
Waiter class returns result
let result = XCTWaiter.wait(for: [documentExpectation], timeout: 10)
switch(result) {
case .completed:
//all expectations were fulfilled before timeout!
case .timedOut:
//timed out before all of its expectations were fulfilled
case .incorrectOrder:
//expectations were not fulfilled in the required order
case .invertedFulfillment:
//an inverted expectation was fulfilled
case .interrupted:
//waiter was interrupted before completed or timedOut
}
Before Xcode 9
Objective C
- (void)waitForElementToAppear:(XCUIElement *)element withTimeout:(NSTimeInterval)timeout
{
NSUInteger line = __LINE__;
NSString *file = [NSString stringWithUTF8String:__FILE__];
NSPredicate *existsPredicate = [NSPredicate predicateWithFormat:@"exists == true"];
[self expectationForPredicate:existsPredicate evaluatedWithObject:element handler:nil];
[self waitForExpectationsWithTimeout:timeout handler:^(NSError * _Nullable error) {
if (error != nil) {
NSString *message = [NSString stringWithFormat:@"Failed to find %@ after %f seconds",element,timeout];
[self recordFailureWithDescription:message inFile:file atLine:line expected:YES];
}
}];
}
USAGE
XCUIElement *element = app.staticTexts["Name of your element"];
[self waitForElementToAppear:element withTimeout:5];
Swift
func waitForElementToAppear(element: XCUIElement, timeout: NSTimeInterval = 5, file: String = #file, line: UInt = #line) {
let existsPredicate = NSPredicate(format: "exists == true")
expectationForPredicate(existsPredicate,
evaluatedWithObject: element, handler: nil)
waitForExpectationsWithTimeout(timeout) { (error) -> Void in
if (error != nil) {
let message = "Failed to find \(element) after \(timeout) seconds."
self.recordFailureWithDescription(message, inFile: file, atLine: line, expected: true)
}
}
}
USAGE
let element = app.staticTexts["Name of your element"]
self.waitForElementToAppear(element)
or
let element = app.staticTexts["Name of your element"]
self.waitForElementToAppear(element, timeout: 10)
->
is used to call a method, or access a property, on the object of a class
=>
is used to assign values to the keys of an array
E.g.:
$ages = array("Peter"=>32, "Quagmire"=>30, "Joe"=>34, 1=>2);
And since PHP 7.4+ the operator =>
is used too for the added arrow functions, a more concise syntax for anonymous functions.