<?php
$my_array = array('sheldon', 'leonard', 'howard', 'penny');
$to_remove = array('howard');
$result = array_diff($my_array, $to_remove);
?>
Use AddWithValue()
, but be aware of the possibility of the wrong implicit type conversion
.
like this:
cmd.Parameters.AddWithValue("@param1", klantId);
cmd.Parameters.AddWithValue("@param2", klantNaam);
cmd.Parameters.AddWithValue("@param3", klantVoornaam);
The reason for this error is that there are other database before the wrong operation led to the current database operation can not be carried out(i use google translation to translate my chinese to english)
Using individual regular expressions to test the different parts would be considerably easier than trying to get one single regular expression to cover all of them. It also makes it easier to add or remove validation criteria.
Note, also, that your usage of .filter()
was incorrect; it will always return a jQuery object (which is considered truthy in JavaScript). Personally, I'd use an .each()
loop to iterate over all of the inputs, and report individual pass/fail statuses. Something like the below:
$(".buttonClick").click(function () {
$("input[type=text]").each(function () {
var validated = true;
if(this.value.length < 8)
validated = false;
if(!/\d/.test(this.value))
validated = false;
if(!/[a-z]/.test(this.value))
validated = false;
if(!/[A-Z]/.test(this.value))
validated = false;
if(/[^0-9a-zA-Z]/.test(this.value))
validated = false;
$('div').text(validated ? "pass" : "fail");
// use DOM traversal to select the correct div for this input above
});
});
Just iterate over DataFrame.columns
, now this is an example in which you will end up with a list of column names that match:
import pandas as pd
data = {'spike-2': [1,2,3], 'hey spke': [4,5,6], 'spiked-in': [7,8,9], 'no': [10,11,12]}
df = pd.DataFrame(data)
spike_cols = [col for col in df.columns if 'spike' in col]
print(list(df.columns))
print(spike_cols)
Output:
['hey spke', 'no', 'spike-2', 'spiked-in']
['spike-2', 'spiked-in']
Explanation:
df.columns
returns a list of column names[col for col in df.columns if 'spike' in col]
iterates over the list df.columns
with the variable col
and adds it to the resulting list if col
contains 'spike'
. This syntax is list comprehension. If you only want the resulting data set with the columns that match you can do this:
df2 = df.filter(regex='spike')
print(df2)
Output:
spike-2 spiked-in
0 1 7
1 2 8
2 3 9
Hope it help. :)
const unsigned attribName = getname();
const unsigned attribVal = getvalue();
const char *attrName=NULL, *attrVal=NULL;
attrName = (const char*) attribName;
attrVal = (const char*) attribVal;
You can use below query to update or create comment on already created table.
SYNTAX:
COMMENT ON COLUMN TableName.ColumnName IS 'comment text';
Example:
COMMENT ON COLUMN TAB_SAMBANGI.MY_COLUMN IS 'This is a comment on my column...';
If all the other answers didn't work for you, try disabling HTTP input encoding translation.
This is a setting related to PHP extension mbstring. This was the problem in my case. This setting was enabled by default in my server.
There are two problems here. First, you need a package.json
file. Telling npm to install without one will throw the npm WARN enoent ENOENT: no such file or directory
error. In your project directory, run npm init
to generate a package.json
file for the project.
Second, local binaries probably aren't found because the local ./node_modules/.bin
is not in $PATH
. There are some solutions in How to use package installed locally in node_modules?, but it might be easier to just wrap your babel-cli commands in npm scripts. This works because npm run
adds the output of npm bin
(node_modules/.bin
) to the PATH
provided to scripts.
Here's a stripped-down example package.json
which returns the locally installed babel-cli version:
{
"scripts": {
"babel-version": "babel --version"
},
"devDependencies": {
"babel-cli": "^6.6.5"
}
}
Call the script with this command: npm run babel-version
.
Putting scripts in package.json is quite useful but often overlooked. Much more in the docs: How npm handles the "scripts" field
select Qty, vajan, Rate,Amt,nhamali,ncommission,ntolai from SalesDtl,SalesMSt where SalesDtl.PurEntryNo=1 and SalesMST.SaleDate= (22/03/2014) and SalesMST.SaleNo= SalesDtl.SaleNo;
That should work.
// file Foo.php
class Foo
{
static function init() { /* ... */ }
}
Foo::init();
This way, the initialization happens when the class file is included. You can make sure this only happens when necessary (and only once) by using autoloading.
Use img.Convert(), supports “L”, “RGB” and “CMYK.” mode
import numpy as np
from PIL import Image
img = Image.open("IMG/center_2018_02_03_00_34_32_784.jpg")
img.convert('L')
print np.array(img)
Output:
[[135 123 134 ..., 30 3 14]
[137 130 137 ..., 9 20 13]
[170 177 183 ..., 14 10 250]
...,
[112 99 91 ..., 90 88 80]
[ 95 103 111 ..., 102 85 103]
[112 96 86 ..., 182 148 114]]
I know this question is old, but it deserves an answer. I personally prefer to create a WSDL by hand and test for compliance using SoapUI. But sometimes (specially for complex WSDLs), you have three ways to generate one out of an XSD:
I prefer the CXF approach since I'm a CLI guy. If it has a CLI, you can automate (that's my motto). And I like the Spring WS approach the least since it uses a lot of framework specific conventions.
There are more people who know CXF (I believe) than Spring WS. So anything that can throw a learning curve for a new engineer (without any clear advantage or ROI) is something I frown upon.
It should also go w/o saying that any generated WSDL should be tested for validity and compliance (and tweaked till it complies), and that your application publishes a static wsdl (as opposed to returning an auto-generated one.)
It's been my experience that you start with a WS-I compliant wsdl and then your application auto-generates (and returns to consumers) a non-compliant one.
In other words, beware of auto magic.
On a MAC, you need to use nm *.o | c++filt
, as there is no -C
option in nm
.
Well, the C way might be something like ...
#include <stdlib.h>
#include <stdio.h>
int main()
{
int n;
scanf("%d", &n);
printf("%X", n);
exit(0);
}
You can use the reload
method of the $route
service. Inject $route
in your controller and then create a method reloadRoute
on your $scope
.
$scope.reloadRoute = function() {
$route.reload();
}
Then you can use it on the link like this:
<a ng-click="reloadRoute()" class="navbar-brand" title="home" data-translate>PORTAL_NAME</a>
This method will cause the current route to reload. If you however want to perform a full refresh, you could inject $window
and use that:
$scope.reloadRoute = function() {
$window.location.reload();
}
Later edit (ui-router):
As mentioned by JamesEddyEdwards and Dunc in their answers, if you are using angular-ui/ui-router you can use the following method to reload the current state / route. Just inject $state
instead of $route
and then you have:
$scope.reloadRoute = function() {
$state.reload();
};
You might also consider removing the need for duplicated parameter names in your Sql by changing your Sql to
table.Variable2 LIKE '%' || :VarB || '%'
and then getting your client to provide '%' for any value of VarB instead of null. In some ways I think this is more natural.
You could also change the Sql to
table.Variable2 LIKE '%' || IfNull(:VarB, '%') || '%'
The existing answers are quite clear. Just in case you do not know why it is called reverse
: It takes an input of a url name and gives the actual url, which is reverse to having a url first and then give it a name.
To convert an object to a byte array:
// Convert an object to a byte array
public static byte[] ObjectToByteArray(Object obj)
{
BinaryFormatter bf = new BinaryFormatter();
using (var ms = new MemoryStream())
{
bf.Serialize(ms, obj);
return ms.ToArray();
}
}
You just need copy this function to your code and send to it the object that you need to convert to a byte array. If you need convert the byte array to an object again you can use the function below:
// Convert a byte array to an Object
public static Object ByteArrayToObject(byte[] arrBytes)
{
using (var memStream = new MemoryStream())
{
var binForm = new BinaryFormatter();
memStream.Write(arrBytes, 0, arrBytes.Length);
memStream.Seek(0, SeekOrigin.Begin);
var obj = binForm.Deserialize(memStream);
return obj;
}
}
You can use these functions with custom classes. You just need add the [Serializable]
attribute in your class to enable serialization
This always does the trick for me
foreach($array as $key => $value) {
if (end(array_keys($array)) == $key)
// Last key reached
}
Edit 30/04/15
$last_key = end(array_keys($array));
reset($array);
foreach($array as $key => $value) {
if ( $key == $last_key)
// Last key reached
}
To avoid the E_STRICT warning mentioned by @Warren Sergent
$array_keys = array_keys($array);
$last_key = end($array_keys);
A soft reset will keep your local changes.
Source: https://answers.atlassian.com/questions/153791/how-should-i-remove-push-commit-from-sourcetree
Edit
About git revert
: This command creates a new commit which will undo other commits. E.g. if you have a commit which adds a new file, git revert
could be used to make a commit which will delete the new file.
About applying a soft reset: Assume you have the commits A
to E
(A---B---C---D---E
) and you like to delete the last commit (E
). Then you can do a soft reset to commit D
. With a soft reset commit E
will be deleted from git but the local changes will be kept. There are more examples in the git reset documentation.
The rather amazing yolk makes this easy.
pip install yolk3k # Don't install `yolk`, see https://github.com/cakebread/yolk/issues/35
yolk --upgrade
For more information on yolk: https://pypi.python.org/pypi/yolk/0.4.3
It can do lots of things you'll probably find useful.
Couldn't resist to add another method, using childElementCount
. It returns the number of child element nodes from a given parent, so you can loop over it.
for(var i=0, len = parent.childElementCount ; i < len; ++i){
... do something with parent.children[i]
}
Please note that inserted, deleted
means the same thing as inserted CROSS JOIN deleted
and gives every combination of every row. I doubt this is what you want.
Something like this may help get you started...
SELECT
CASE WHEN inserted.primaryKey IS NULL THEN 'This is a delete'
WHEN deleted.primaryKey IS NULL THEN 'This is an insert'
ELSE 'This is an update'
END as Action,
*
FROM
inserted
FULL OUTER JOIN
deleted
ON inserted.primaryKey = deleted.primaryKey
Depending on what you want to do, you then reference the table you are interested in with inserted.userID
or deleted.userID
, etc.
Finally, be aware that inserted
and deleted
are tables and can (and do) contain more than one record.
If you insert 10 records at once, the inserted
table will contain ALL 10 records. The same applies to deletes and the deleted
table. And both tables in the case of an update.
EDIT Examplee Trigger after OPs edit.
ALTER TRIGGER [dbo].[UpdateUserCreditsLeft]
ON [dbo].[Order]
AFTER INSERT,UPDATE,DELETE
AS
BEGIN
-- SET NOCOUNT ON added to prevent extra result sets from
-- interfering with SELECT statements.
SET NOCOUNT ON;
UPDATE
User
SET
CreditsLeft = CASE WHEN inserted.UserID IS NULL THEN <new value for a DELETE>
WHEN deleted.UserID IS NULL THEN <new value for an INSERT>
ELSE <new value for an UPDATE>
END
FROM
User
INNER JOIN
(
inserted
FULL OUTER JOIN
deleted
ON inserted.UserID = deleted.UserID -- This assumes UserID is the PK on UpdateUserCreditsLeft
)
ON User.UserID = COALESCE(inserted.UserID, deleted.UserID)
END
If the PrimaryKey of UpdateUserCreditsLeft
is something other than UserID, use that in the FULL OUTER JOIN instead.
I used this for getting Date and Time in a fragment.
private Handler mHandler = new Handler(Looper.getMainLooper());
@Override
public View onCreateView(LayoutInflater inflater, ViewGroup container,
Bundle savedInstanceState) {
// Inflate the layout for this fragment
View root = inflater.inflate(R.layout.fragment_head_screen, container, false);
dateTextView = root.findViewById(R.id.dateView);
hourTv = root.findViewById(R.id.hourView);
Thread thread = new Thread() {
@Override
public void run() {
try {
while (!isInterrupted()) {
Thread.sleep(1000);
mHandler.post(new Runnable() {
@Override
public void run() {
//Calendario para obtener fecha & hora
Date currentTime = Calendar.getInstance().getTime();
SimpleDateFormat date_sdf = new SimpleDateFormat("dd/MM/yyyy");
SimpleDateFormat hour_sdf = new SimpleDateFormat("HH:mm a");
String currentDate = date_sdf.format(currentTime);
String currentHour = hour_sdf.format(currentTime);
dateTextView.setText(currentDate);
hourTv.setText(currentHour);
}
});
}
} catch (InterruptedException e) {
Log.v("InterruptedException", e.getMessage());
}
}
};
}
Use selectors like CSS3
$("banner.html>div:first-child").append(data);
This error is caused by:
Y = Dataset.iloc[:,18].values
Indexing is out of bounds here most probably because there are less than 19 columns in your Dataset, so column 18 does not exist. The following code you provided doesn't use Y at all, so you can just comment out this line for now.
The modify()
method that can be used to add increments to an existing DateTime
value.
Create a new DateTime
object with the current date and time:
$due_dt = new DateTime();
Once you have the DateTime
object, you can manipulate its value by adding or subtracting time periods:
$due_dt->modify('+1 day');
You can read more on the PHP Manual.
ABSTRACT CLASSES AND ABSTARCT METHODS FULL DESCRIPTION GO THROUGH IT
abstract method do not have body.A well defined method can't be declared abstract.
A class which has abstract method must be declared as abstract.
Abstract class can't be instantiated.
You can just convert the string like that [str intValue] or [str integerValue]
integerValue Returns the NSInteger value of the receiver’s text.
for more information refer here
This is a "roundabout" solution but you could use ipython
Start ipython notebook from terminal:
$ ipython notebook
It will open in a browser where you can run the javascript
Update 2:
Xcode 9 appears to have a "feature" where it will ignore the file's current line endings, and instead just use your default line-ending setting when inserting lines into a file, resulting in files with mixed line endings.
I'm pretty sure this bug didn't exist in Xcode 7; not sure about Xcode 8. The good news is that it appears to be fixed in Xcode 10.
For the time it existed, this bug caused a small amount of hilarity in the codebase I refer to in the question (which to this day uses autocrlf=false
), and led to many "EOL" commit messages and eventually to my writing a git pre-commit
hook to check for/prevent introducing mixed line endings.
Update:
Note: As noted by VonC, starting from Git 2.8, merge markers will not introduce Unix-style line-endings to a Windows-style file.
Original:
One little hiccup that I've noticed with this setup is that when there are merge conflicts, the lines git adds to mark up the differences do not have Windows line-endings, even when the rest of the file does, and you can end up with a file with mixed line endings, e.g.:
// Some code<CR><LF>
<<<<<<< Updated upstream<LF>
// Change A<CR><LF>
=======<LF>
// Change B<CR><LF>
>>>>>>> Stashed changes<LF>
// More code<CR><LF>
This doesn't cause us any problems (I imagine any tool that can handle both types of line-endings will also deal sensible with mixed line-endings--certainly all the ones we use do), but it's something to be aware of.
The other thing* we've found, is that when using git diff
to view changes to a file that has Windows line-endings, lines that have been added display their carriage returns, thus:
// Not changed
+ // New line added in^M
+^M
// Not changed
// Not changed
* It doesn't really merit the term: "issue".
This problem usually occurs when some process such as loading huge data to memory stream and your system memory is not capable of storing so much of data. Try clearing temp folder by giving the command
start -> run -> %temp%
div[disabled]
{
pointer-events: none;
opacity: 0.6;
background: rgba(200, 54, 54, 0.5);
background-color: yellow;
filter: alpha(opacity=50);
zoom: 1;
-ms-filter: "progid:DXImageTransform.Microsoft.Alpha(Opacity=50)";
-moz-opacity: 0.5;
-khtml-opacity: 0.5;
}
It looks like the SQL Server doesn't have permission to access file C:\backup.bak. I would check the permissions of the account that is assigned to the SQL Server service account.
As part of the solution, you may want to save your backup files to somewhere other that the root of the C: drive. That might be one reason why you are having permission problems.
return None
or return
can be used to exit out of a function or program, both does the same thingquit()
function can be used, although use of this function is discouraged for making real world applications and should be used only in interpreter. import site
def func():
print("Hi")
quit()
print("Bye")
exit()
function can be used, similar to quit()
but the use is discouraged for making real world applications.import site
def func():
print("Hi")
exit()
print("Bye")
sys.exit([arg])
function can be used and need to import sys
module for that, this function can be used for real world applications unlike the other two functions.import sys
height = 150
if height < 165: # in cm
# exits the program
sys.exit("Height less than 165")
else:
print("You ride the rollercoaster.")
os._exit(n)
function can be used to exit from a process, and need to import os
module for that.You can, under certain circumstances.
But the fact that you consider this is a strong sign that there is something wrong with your architecture: Primary keys should be pure technical and carry no business meaning whatsoever. So there should never be the need to change them.
Thomas
From the error, I infer that referenceElement
is a dictionary (see repro below). A dictionary cannot be hashed and therefore cannot be used as a key to another dictionary (or itself for that matter!).
>>> d1, d2 = {}, {}
>>> d1[d2] = 1
Traceback (most recent call last):
File "<input>", line 1, in <module>
TypeError: unhashable type: 'dict'
You probably meant either for element in referenceElement.keys()
or for element in json['referenceElement'].keys()
. With more context on what types json
and referenceElement
are and what they contain, we will be able to better help you if neither solution works.
First of all, you can't pass to alert
second argument, use concatenation instead
alert("Input is " + inputValue);
However in order to get values from input better to use states like this
var MyComponent = React.createClass({_x000D_
getInitialState: function () {_x000D_
return { input: '' };_x000D_
},_x000D_
_x000D_
handleChange: function(e) {_x000D_
this.setState({ input: e.target.value });_x000D_
},_x000D_
_x000D_
handleClick: function() {_x000D_
console.log(this.state.input);_x000D_
},_x000D_
_x000D_
render: function() {_x000D_
return (_x000D_
<div>_x000D_
<input type="text" onChange={ this.handleChange } />_x000D_
<input_x000D_
type="button"_x000D_
value="Alert the text input"_x000D_
onClick={this.handleClick}_x000D_
/>_x000D_
</div>_x000D_
);_x000D_
}_x000D_
});_x000D_
_x000D_
ReactDOM.render(_x000D_
<MyComponent />,_x000D_
document.getElementById('container')_x000D_
);
_x000D_
<script src="https://cdnjs.cloudflare.com/ajax/libs/react/15.1.0/react.min.js"></script>_x000D_
<script src="https://cdnjs.cloudflare.com/ajax/libs/react/15.1.0/react-dom.min.js"></script>_x000D_
<div id="container"></div>
_x000D_
String str = "saveMe"
compareString(str)
def compareString(String str){
def str2 = "saveMe"
// using single quotes
println 'single quote string class' + 'String.class'.class
println str + ' == ' + str2 + " ? " + (str == str2)
println ' str = ' + '$str' // interpolation not supported
// using double quotes, Interpolation supported
println "double quoted string with interpolation " + "GString.class $str".class
println "double quoted string without interpolation " + "String.class".class
println "$str equals $str2 ? " + str.equals(str2)
println '$str == $str2 ? ' + "$str==$str2"
println '${str == str2} ? ' + "${str==str2} ? "
println '$str equalsIgnoreCase $str2 ? ' + str.equalsIgnoreCase(str2)
println '''
triple single quoted Multi-line string, Interpolation not supported $str ${str2}
Groovy has also an operator === that can be used for objects equality
=== is equivalent to o1.is(o2)
'''
println '''
triple quoted string
'''
println 'triple single quoted string ' + '''' string '''.class
println """
triple double quoted Multi-line string, Interpolation is supported $str == ${str2}
just like double quoted strings with the addition that they are multiline
'\${str == str2} ? ' ${str == str2}
"""
println 'triple double quoted string ' + """ string """.class
}
output:
single quote string classclass java.lang.String
saveMe == saveMe ? true
str = $str
double quoted string with interpolation class org.codehaus.groovy.runtime.GStringImpl
double quoted string without interpolation class java.lang.String
saveMe equals saveMe ? true
$str == $str2 ? saveMe==saveMe
${str == str2} ? true ?
$str equalsIgnoreCase $str2 ? true
triple single quoted Multi-line string, Interpolation not supported $str ${str2}
Groovy has also an operator === that can be used for objects equality
=== is equivalent to o1.is(o2)
triple quoted string
triple single quoted string class java.lang.String
triple double quoted Multi-line string, Interpolation is supported saveMe == saveMe
just like double quoted strings with the addition that they are multiline
'${str == str2} ? ' true
triple double quoted string class java.lang.String
In SQL Server you can use YEAR
, MONTH
and DAY
instead of DATEPART
.
(at least in SQL Server 2005/2008, I'm not sure about SQL Server 2000 and older)
I prefer using these "short forms" because to me, YEAR(getdate())
is shorter to type and better to read than DATEPART(yyyy, getdate())
.
So you could also query your table like this:
select *
from your_table
where month_column = MONTH(getdate())
and year_column = YEAR(getdate())
You should try something like this, I am doing this for my project, its a fallback system
//function to get the remote data
function url_get_contents ($url) {
if (function_exists('curl_exec')){
$conn = curl_init($url);
curl_setopt($conn, CURLOPT_SSL_VERIFYPEER, true);
curl_setopt($conn, CURLOPT_FRESH_CONNECT, true);
curl_setopt($conn, CURLOPT_RETURNTRANSFER, 1);
$url_get_contents_data = (curl_exec($conn));
curl_close($conn);
}elseif(function_exists('file_get_contents')){
$url_get_contents_data = file_get_contents($url);
}elseif(function_exists('fopen') && function_exists('stream_get_contents')){
$handle = fopen ($url, "r");
$url_get_contents_data = stream_get_contents($handle);
}else{
$url_get_contents_data = false;
}
return $url_get_contents_data;
}
then later you can do like this
$data = url_get_contents("http://www.google.com");
if($data){
//Do Something....
}
According to Express behind proxies, req.ip
has taken into account reverse proxy if you have configured trust proxy
properly. Therefore it's better than req.connection.remoteAddress
which is obtained from network layer and unaware of proxy.
As Shiraz Bhaiji answered, the metadata=res:///Model.csdl|res:///Model.ssdl|res://*/Model.msl was the case. However I still had problems with constructing the proper string based on my Model localization, namespaces and assemby name. The very simple solution was to rename the .edmx file in Visual Studio(after than rename and get back to the original name), which triggered the automatic refreshing of the string in my Web.config
For communication between node.js and Python server, I would use Unix sockets if both processes run on the same server and TCP/IP sockets otherwise. For marshaling protocol I would take JSON or protocol buffer. If threaded Python shows up to be a bottleneck, consider using Twisted Python, which provides the same event driven concurrency as do node.js.
If you feel adventurous, learn clojure (clojurescript, clojure-py) and you'll get the same language that runs and interoperates with existing code on Java, JavaScript (node.js included), CLR and Python. And you get superb marshalling protocol by simply using clojure data structures.
AngularJS couldn't parse .NET JSON date /Date(xxxxxxxxxxxxx)/
string either..
I side stepped this issue by formatting the date to its ISO 8601 string representation instead of dumping the Date
object directly...
Here is a sample of ASP.NET MVC code..
return Json(new {
date : DateTime.Now.ToString("O") //ISO 8601 Angular understands this format
});
I tried RFC 1123
but it doesn't work.. Angular treats this as string instead of Date.
return Json(new {
date : DateTime.Now.ToString("R") //RFC 1123 Angular won't parse this
});
numpy.linspace()
gives you a one-dimensional NumPy array. For example:
>>> my_array = numpy.linspace(1, 10, 10)
>>> my_array
array([ 1., 2., 3., 4., 5., 6., 7., 8., 9., 10.])
Therefore:
for index,point in my_array
cannot work. You would need some kind of two-dimensional array with two elements in the second dimension:
>>> two_d = numpy.array([[1, 2], [4, 5]])
>>> two_d
array([[1, 2], [4, 5]])
Now you can do this:
>>> for x, y in two_d:
print(x, y)
1 2
4 5
You have to include sort
function which is in algorithm
header file which is a standard template library in c++.
Usage: std::sort(str.begin(), str.end());
#include <iostream>
#include <algorithm> // this header is required for std::sort to work
int main()
{
std::string s = "dacb";
std::sort(s.begin(), s.end());
std::cout << s << std::endl;
return 0;
}
OUTPUT:
abcd
When I meet this problem, I search to here but most of answers are trying to modify existing url. Here is another answer which works for me using localStorage.
<script type='text/javascript'>
(function()
{
if( window.localStorage )
{
if( !localStorage.getItem('firstLoad') )
{
localStorage['firstLoad'] = true;
window.location.reload();
}
else
localStorage.removeItem('firstLoad');
}
})();
</script>
Your code can be factored to this (in lieu of File.ReadAllBytes):
public byte[] ReadAllBytes(string fileName)
{
byte[] buffer = null;
using (FileStream fs = new FileStream(fileName, FileMode.Open, FileAccess.Read))
{
buffer = new byte[fs.Length];
fs.Read(buffer, 0, (int)fs.Length);
}
return buffer;
}
Note the Integer.MaxValue - file size limitation placed by the Read method. In other words you can only read a 2GB chunk at once.
Also note that the last argument to the FileStream is a buffer size.
I would also suggest reading about FileStream and BufferedStream.
As always a simple sample program to profile which is fastest will be most beneficial.
Also your underlying hardware will have a large effect on performance. Are you using server based hard disk drives with large caches and a RAID card with onboard memory cache? Or are you using a standard drive connected to the IDE port?
I decided to evaluate some of the presented Options and compare their performance, as well as use some new Features. Benchmarking on .NET Regex Engine: http://regexhero.net/tester/
The first 7 lines should not match, since they contain the searched Expression, while the lower 7 lines should match!
Regex Hero is a real-time online Silverlight Regular Expression Tester.
XRegex Hero is a real-time online Silverlight Regular Expression Tester.
Regex HeroRegex HeroRegex HeroRegex HeroRegex Hero is a real-time online Silverlight Regular Expression Tester.
Regex Her Regex Her Regex Her Regex Her Regex Her Regex Her Regex Hero is a real-time online Silverlight Regular Expression Tester.
Regex Her is a real-time online Silverlight Regular Expression Tester.Regex Hero
egex Hero egex Hero egex Hero egex Hero egex Hero egex Hero Regex Hero is a real-time online Silverlight Regular Expression Tester.
RRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRegex Hero is a real-time online Silverlight Regular Expression Tester.
Regex Her
egex Hero
egex Hero is a real-time online Silverlight Regular Expression Tester.
Regex Her is a real-time online Silverlight Regular Expression Tester.
Regex Her Regex Her Regex Her Regex Her Regex Her Regex Her is a real-time online Silverlight Regular Expression Tester.
Nobody is a real-time online Silverlight Regular Expression Tester.
Regex Her o egex Hero Regex Hero Reg ex Hero is a real-time online Silverlight Regular Expression Tester.
Results are Iterations per second as the median of 3 runs - Bigger Number = Better
01: ^((?!Regex Hero).)*$ 3.914 // Accepted Answer
02: ^(?:(?!Regex Hero).)*$ 5.034 // With Non-Capturing group
03: ^(?>[^R]+|R(?!egex Hero))*$ 6.137 // Lookahead only on the right first letter
04: ^(?>(?:.*?Regex Hero)?)^.*$ 7.426 // Match the word and check if you're still at linestart
05: ^(?(?=.*?Regex Hero)(?#fail)|.*)$ 7.371 // Logic Branch: Find Regex Hero? match nothing, else anything
P1: ^(?(?=.*?Regex Hero)(*FAIL)|(*ACCEPT)) ????? // Logic Branch in Perl - Quick FAIL
P2: .*?Regex Hero(*COMMIT)(*FAIL)|(*ACCEPT) ????? // Direct COMMIT & FAIL in Perl
Since .NET doesn't support action Verbs (*FAIL, etc.) I couldn't test the solutions P1 and P2.
I tried to test most proposed solutions, some Optimizations are possible for certain words.
For Example if the First two letters of the search string are not the Same, answer 03 can be expanded to
^(?>[^R]+|R+(?!egex Hero))*$
resulting in a small performance gain.
But the overall most readable and performance-wise fastest solution seems to be 05 using a conditional statement or 04 with the possesive quantifier. I think the Perl solutions should be even faster and more easily readable.
1. Rename master
branch to your newbranch
(assuming you are on master
branch):
git branch -m newbranch
2. Create master
branch from the commit that you wish:
git checkout -b master <seven_char_commit_id>
e.g. git checkout -b master a34bc22
For me the error was:
Error: unexpected input in "?"
and the fix was opening the script in a hex editor and removing the first 3 characters from the file. The file was starting with an UTF-8 BOM and it seems that Rscript can't read that.
EDIT: OP requested an example. Here it goes.
? ~ cat a.R
cat('hello world\n')
? ~ xxd a.R
00000000: efbb bf63 6174 2827 6865 6c6c 6f20 776f ...cat('hello wo
00000010: 726c 645c 6e27 290a rld\n').
? ~ R -f a.R
R version 3.4.4 (2018-03-15) -- "Someone to Lean On"
Copyright (C) 2018 The R Foundation for Statistical Computing
Platform: x86_64-pc-linux-gnu (64-bit)
R is free software and comes with ABSOLUTELY NO WARRANTY.
You are welcome to redistribute it under certain conditions.
Type 'license()' or 'licence()' for distribution details.
Natural language support but running in an English locale
R is a collaborative project with many contributors.
Type 'contributors()' for more information and
'citation()' on how to cite R or R packages in publications.
Type 'demo()' for some demos, 'help()' for on-line help, or
'help.start()' for an HTML browser interface to help.
Type 'q()' to quit R.
> cat('hello world\n')
Error: unexpected input in "?"
Execution halted
Height and width are zero because view has not been created by the time you are requesting it's height and width . One simplest solution is
view.post(new Runnable() {
@Override
public void run() {
view.getHeight(); //height is ready
view.getWidth(); //width is ready
}
});
This method is good as compared to other methods as it is short and crisp.
For MySQL, there is none: MySQL Feature Request.
Allowing this is arguably a really bad idea, anyway: IF EXISTS
indicates that you're running destructive operations on a database with (to you) unknown structure. There may be situations where this is acceptable for quick-and-dirty local work, but if you're tempted to run such a statement against production data (in a migration etc.), you're playing with fire.
But if you insist, it's not difficult to simply check for existence first in the client, or to catch the error.
MariaDB also supports the following starting with 10.0.2:
DROP [COLUMN] [IF EXISTS] col_name
i. e.
ALTER TABLE my_table DROP IF EXISTS my_column;
But it's arguably a bad idea to rely on a non-standard feature supported by only one of several forks of MySQL.
If you intend to use the default VB6 Collection
, then the easiest you can do is:
col1.add array("first key", "first string"), "first key"
col1.add array("second key", "second string"), "second key"
col1.add array("third key", "third string"), "third key"
Then you can list all values:
Dim i As Variant
For Each i In col1
Debug.Print i(1)
Next
Or all keys:
Dim i As Variant
For Each i In col1
Debug.Print i(0)
Next
Create a list of namedtuples
It can often be very handy to use namedtuple. For example, you have a dictionary of 'name' as keys and 'score' as values like:
d = {'John':5, 'Alex':10, 'Richard': 7}
You can list the items as tuples, sorted if you like, and get the name and score of, let's say the player with the highest score (index=0) very Pythonically like this:
>>> player = best[0]
>>> player.name
'Alex'
>>> player.score
10
How to do this:
list in random order or keeping order of collections.OrderedDict:
import collections
Player = collections.namedtuple('Player', 'name score')
players = list(Player(*item) for item in d.items())
in order, sorted by value ('score'):
import collections
Player = collections.namedtuple('Player', 'score name')
sorted with lowest score first:
worst = sorted(Player(v,k) for (k,v) in d.items())
sorted with highest score first:
best = sorted([Player(v,k) for (k,v) in d.items()], reverse=True)
If you have multiple files and you don't want to have to type each file, I would recommend that you follow these simple steps (I am using clang-3.8
but you can use any other version):
generate all .ll
files
clang-3.8 -S -emit-llvm *.c
link them into a single one
llvm-link-3.8 -S -v -o single.ll *.ll
(Optional) Optimise your code (maybe some alias analysis)
opt-3.8 -S -O3 -aa -basicaaa -tbaa -licm single.ll -o optimised.ll
Generate assembly (generates a optimised.s
file)
llc-3.8 optimised.ll
Create executable (named a.out
)
clang-3.8 optimised.s
Note that the type(numpy.ndarray)
is a type
itself and watch out for boolean and scalar types. Don't be too discouraged if it's not intuitive or easy, it's a pain at first.
See also: - https://docs.scipy.org/doc/numpy-1.15.1/reference/arrays.dtypes.html - https://github.com/machinalis/mypy-data/tree/master/numpy-mypy
>>> import numpy as np
>>> np.ndarray
<class 'numpy.ndarray'>
>>> type(np.ndarray)
<class 'type'>
>>> a = np.linspace(1,25)
>>> type(a)
<class 'numpy.ndarray'>
>>> type(a) == type(np.ndarray)
False
>>> type(a) == np.ndarray
True
>>> isinstance(a, np.ndarray)
True
Fun with booleans:
>>> b = a.astype('int32') == 11
>>> b[0]
False
>>> isinstance(b[0], bool)
False
>>> isinstance(b[0], np.bool)
False
>>> isinstance(b[0], np.bool_)
True
>>> isinstance(b[0], np.bool8)
True
>>> b[0].dtype == np.bool
True
>>> b[0].dtype == bool # python equivalent
True
More fun with scalar types, see: - https://docs.scipy.org/doc/numpy-1.15.1/reference/arrays.scalars.html#arrays-scalars-built-in
>>> x = np.array([1,], dtype=np.uint64)
>>> x[0].dtype
dtype('uint64')
>>> isinstance(x[0], np.uint64)
True
>>> isinstance(x[0], np.integer)
True # generic integer
>>> isinstance(x[0], int)
False # but not a python int in this case
# Try matching the `kind` strings, e.g.
>>> np.dtype('bool').kind
'b'
>>> np.dtype('int64').kind
'i'
>>> np.dtype('float').kind
'f'
>>> np.dtype('half').kind
'f'
# But be weary of matching dtypes
>>> np.integer
<class 'numpy.integer'>
>>> np.dtype(np.integer)
dtype('int64')
>>> x[0].dtype == np.dtype(np.integer)
False
# Down these paths there be dragons:
# the .dtype attribute returns a kind of dtype, not a specific dtype
>>> isinstance(x[0].dtype, np.dtype)
True
>>> isinstance(x[0].dtype, np.uint64)
False
>>> isinstance(x[0].dtype, np.dtype(np.uint64))
Traceback (most recent call last):
File "<console>", line 1, in <module>
TypeError: isinstance() arg 2 must be a type or tuple of types
# yea, don't go there
>>> isinstance(x[0].dtype, np.int_)
False # again, confusing the .dtype with a specific dtype
# Inequalities can be tricky, although they might
# work sometimes, try to avoid these idioms:
>>> x[0].dtype <= np.dtype(np.uint64)
True
>>> x[0].dtype <= np.dtype(np.float)
True
>>> x[0].dtype <= np.dtype(np.half)
False # just when things were going well
>>> x[0].dtype <= np.dtype(np.float16)
False # oh boy
>>> x[0].dtype == np.int
False # ya, no luck here either
>>> x[0].dtype == np.int_
False # or here
>>> x[0].dtype == np.uint64
True # have to end on a good note!
Add:
using System.Linq;
to the top of your file.
And then:
Car[] carList = ...
var carMake =
from item in carList
where item.Model == "bmw"
select item.Make;
or if you prefer the fluent syntax:
var carMake = carList
.Where(item => item.Model == "bmw")
.Select(item => item.Make);
Things to pay attention to:
item.Make
in the select
clause instead if s.Make
as in your code.item
and .Model
in your where
clauseWays to Generate Getters & Setters -
1) Press Alt+Shift+S, then R
2) Right click -> Source -> Generate Getters & Setters
3) Go to Source menu -> Generate Getters & Setters
4) Go to Windows menu -> Preferences -> General -> Keys (Write Generate Getters & Setters on text field)
5) Click on error bulb of the field -> create getters & setters ...
6) Press Ctrl+3 and write getters & setters on text field then select option Generate Getters & Setters
if Mac OS press Alt+cmd+S then select Getters & Setters
this is not a regex solution.
alist={"I love ":""He loves"","Je t'aime ":"Il aime","Ich liebe ":"Er liebt"}
for k in alist.keys():
if k in statement:
print alist[k],statement.split(k)[1:]
It depends on if you want to pass the vector
as a reference or as a pointer (I am disregarding the option of passing it by value as clearly undesirable).
As a reference:
int binarySearch(int first, int last, int search4, vector<int>& random);
vector<int> random(100);
// ...
found = binarySearch(first, last, search4, random);
As a pointer:
int binarySearch(int first, int last, int search4, vector<int>* random);
vector<int> random(100);
// ...
found = binarySearch(first, last, search4, &random);
Inside binarySearch
, you will need to use .
or ->
to access the members of random
correspondingly.
Issues with your current code
binarySearch
expects a vector<int>*
, but you pass in a vector<int>
(missing a &
before random
)binarySearch
before using it (for example, random[mid]
should be (*random)[mid]
using namespace std;
after the <include>
sfirst
and last
are wrong (should be 0 and 99 instead of random[0]
and random[99]
It looks like you're running this on Windows (given your H://log.txt
file path).
Try using \r\n
instead of just \n
.
Honestly, \n
is fine; you're probably viewing the log file in notepad or something else that doesn't render non-Windows newlines. Try opening it in a different viewer/editor (e.g. Wordpad).
Try using
new File(Environment.getExternalStorageDirectory(),"somefilename");
And don't forget to add WRITE_EXTERNAL STORAGE and READ_EXTERNAL STORAGE permissions
I'm no c++ guy, but you should be able to get the gist from this.
public static string Reverse(string s) {
if (s == null || s.Length < 2) {
return s;
}
int length = s.Length;
int loop = (length >> 1) + 1;
int j;
char[] chars = new char[length];
for (int i = 0; i < loop; i++) {
j = length - i - 1;
chars[i] = s[j];
chars[j] = s[i];
}
return new string(chars);
}
Add quotation marks (" ") around the %INPUT% so it looks like this:
If "%INPUT%" == "y" goto yes
If "%INPUT%" == "n" goto no
If "%INPUT%" == "Y" goto yes
If "%INPUT%" == "N" goto no
jQuery.fn.swap = function(b){
b = jQuery(b)[0];
var a = this[0];
var t = a.parentNode.insertBefore(document.createTextNode(''), a);
b.parentNode.insertBefore(a, b);
t.parentNode.insertBefore(b, t);
t.parentNode.removeChild(t);
return this;
};
and use it like this:
$('#div1').swap('#div2');
if you don't want to use jQuery you could easily adapt the function.
You must sort your data according your needs (es. in reverse order) and use select top query
you can use both use array like :
$array = array('tlb_account.crid' =>$value , 'tlb_request.sign'=> 'FALSE' );
and direct assign like:
$this->db->where('tlb_account.crid' =>$value , 'tlb_request.sign'=> 'FALSE');
I wish help you.
get-aduser -Server "servername" -Identity %username% -Properties *
get-aduser -Server "testdomain.test.net" -Identity testuser -Properties *
These work when you have the username. Also less to type than using the -filter
property.
EDIT: Formatting.
you have to add parameter also @zip
SqlConnection conn = new SqlConnection("Data Source=;Initial Catalog=;Persist Security Info=True;User ID=;Password=");
conn.Open();
SqlCommand command = new SqlCommand("Select id from [table1] where name=@zip", conn);
//
// Add new SqlParameter to the command.
//
command.Parameters.AddWithValue("@zip","india");
int result = (Int32) (command.ExecuteScalar());
using (SqlDataReader reader = command.ExecuteReader())
{
// iterate your results here
Console.WriteLine(String.Format("{0}",reader["id"]));
}
conn.Close();
For a good quality x264 encoding of 1060i, done by a computer, not a mobile device, not in real time, you could use a bitrate at about 5 MBps. That means 2250 MB/hour of encoded material. Recommend you deinterlace the footage and compress as progressive.
This can also be due to missing __init__.py
file from the directory. Say if you create a new directory in django for seperating the unit tests into multiple files and place them in one directory then you also have to create the __init__.py
file beside all the other files in new created test directory. otherwise it can give error like
Traceback (most recent call last):
File "C:\Users\USERNAME\AppData\Local\Programs\Python\Python35\Lib\unittest\loader.py",line 153, in loadTestsFromName
module = __import__(module_name)
ImportError: bad magic number in 'APPNAME.tests': b'\x03\xf3\r\n'
For anyone having this problem with newer versions of Eclipse, head over to Window
->Preferences
->Java
->Editor
->Content assist
->Advanced
and mark Java Proposals
and Chain Template Proposals
as active.
I came across an "inverted" issue — I was getting good results with categorical_crossentropy (with 2 classes) and poor with binary_crossentropy. It seems that problem was with wrong activation function. The correct settings were:
binary_crossentropy
: sigmoid activation, scalar target categorical_crossentropy
: softmax activation, one-hot encoded targetI was inspired by @AniMenon to write a pythonic more general solution.
mylist = ['x', 3, 'b']
print('[{}]'.format(', '.join(map('{}'.format, mylist))))
It only uses the format
method. No trace of str
, and it allows for the fine tuning of the elements format.
For example, if you have float numbers as elements of the list, you can adjust their format, by adding a conversion specifier, in this case :.2f
mylist = [1.8493849, -6.329323, 4000.21222111]
print("[{}]".format(', '.join(map('{:.2f}'.format, mylist))))
The output is quite decent:
[1.85, -6.33, 4000.21]
The question has already been answered by aaronasterling
However, someone might be interested in how the variables are stored under the hood.
Before coming to the snippet:
Closures are functions that inherit variables from their enclosing environment. When you pass a function callback as an argument to another function that will do I/O, this callback function will be invoked later, and this function will — almost magically — remember the context in which it was declared, along with all the variables available in that context.
If a function does not use free variables it doesn't form a closure.
If there is another inner level which uses free variables -- all previous levels save the lexical environment ( example at the end )
function attributes func_closure
in python < 3.X or __closure__
in python > 3.X save the free variables.
Every function in python has this closure attributes, but it doesn't save any content if there is no free variables.
example: of closure attributes but no content inside as there is no free variable.
>>> def foo():
... def fii():
... pass
... return fii
...
>>> f = foo()
>>> f.func_closure
>>> 'func_closure' in dir(f)
True
>>>
NB: FREE VARIABLE IS MUST TO CREATE A CLOSURE.
I will explain using the same snippet as above:
>>> def make_printer(msg):
... def printer():
... print msg
... return printer
...
>>> printer = make_printer('Foo!')
>>> printer() #Output: Foo!
And all Python functions have a closure attribute so let's examine the enclosing variables associated with a closure function.
Here is the attribute func_closure
for the function printer
>>> 'func_closure' in dir(printer)
True
>>> printer.func_closure
(<cell at 0x108154c90: str object at 0x108151de0>,)
>>>
The closure
attribute returns a tuple of cell objects which contain details of the variables defined in the enclosing scope.
The first element in the func_closure which could be None or a tuple of cells that contain bindings for the function’s free variables and it is read-only.
>>> dir(printer.func_closure[0])
['__class__', '__cmp__', '__delattr__', '__doc__', '__format__', '__getattribute__',
'__hash__', '__init__', '__new__', '__reduce__', '__reduce_ex__', '__repr__',
'__setattr__', '__sizeof__', '__str__', '__subclasshook__', 'cell_contents']
>>>
Here in the above output you can see cell_contents
, let's see what it stores:
>>> printer.func_closure[0].cell_contents
'Foo!'
>>> type(printer.func_closure[0].cell_contents)
<type 'str'>
>>>
So, when we called the function printer()
, it accesses the value stored inside the cell_contents
. This is how we got the output as 'Foo!'
Again I will explain using the above snippet with some changes:
>>> def make_printer(msg):
... def printer():
... pass
... return printer
...
>>> printer = make_printer('Foo!')
>>> printer.func_closure
>>>
In the above snippet, I din't print msg inside the printer function, so it doesn't create any free variable. As there is no free variable, there will be no content inside the closure. Thats exactly what we see above.
Now I will explain another different snippet to clear out everything Free Variable
with Closure
:
>>> def outer(x):
... def intermediate(y):
... free = 'free'
... def inner(z):
... return '%s %s %s %s' % (x, y, free, z)
... return inner
... return intermediate
...
>>> outer('I')('am')('variable')
'I am free variable'
>>>
>>> inter = outer('I')
>>> inter.func_closure
(<cell at 0x10c989130: str object at 0x10c831b98>,)
>>> inter.func_closure[0].cell_contents
'I'
>>> inn = inter('am')
So, we see that a func_closure
property is a tuple of closure cells, we can refer them and their contents explicitly -- a cell has property "cell_contents"
>>> inn.func_closure
(<cell at 0x10c9807c0: str object at 0x10c9b0990>,
<cell at 0x10c980f68: str object at 0x10c9eaf30>,
<cell at 0x10c989130: str object at 0x10c831b98>)
>>> for i in inn.func_closure:
... print i.cell_contents
...
free
am
I
>>>
Here when we called inn
, it will refer all the save free variables so we get I am free variable
>>> inn('variable')
'I am free variable'
>>>
Watch out for certain headers such as HTTP_X_FORWARDED_FOR
that appear to contain a single IP address. They may actually contain multiple addresses (a chain of proxies I assume).
They will appear to be comma delimited - and can be a lot longer than 45 characters total - so check before storing in DB.
The JPA 2.0 Specification states that:
- The entity class must have a no-arg constructor. It may have other constructors as well. The no-arg constructor must be public or protected.
- The entity class must a be top-level class. An enum or interface must not be designated as an entity.
- The entity class must not be final. No methods or persistent instance variables of the entity class may be final.
- If an entity instance is to be passed by value as a detached object (e.g., through a remote interface), the entity class must implement the Serializable interface.
- Both abstract and concrete classes can be entities. Entities may extend non-entity classes as well as entity classes, and non-entity classes may extend entity classes.
The specification contains no requirements about the implementation of equals and hashCode methods for entities, only for primary key classes and map keys as far as I know.
If you absolutely must use HTML to give your text color, you have to use the (deprecated) <font>
-tag:
<h2><font color="#006699">Process Report</font></h2>
But otherwise, I strongly recommend you to do as rekire said: use CSS.
If you learn how to use virtualenv (which is pretty dead-simple), you will have less of these issues. You'll just source the virtualenv and then you will be using local (to the project) packages.
It solves a lot of headache for me with paths, versions, etc.
You can simply use the border class from bootstrap:
<div class="row border border-dark">
...
</div>
For more details visit the following link: Borders
Anyone else come across this post, and not finding the other suggestions to work?
Depending on the specific query, a different approach may be needed. In my case, I needed either count the results of a GROUP BY
, e.g.
SELECT COUNT(*) FROM (SELECT * FROM a GROUP BY b)
or use COUNT(DISTINCT b)
:
SELECT COUNT(DISTINCT b) FROM a
After some puzzling around, I realised there was no built-in Laravel function for either of these. So the simplest solution was to use use DB::raw
with the count
method.
$count = $builder->count(DB::raw('DISTINCT b'));
Remember, don't use groupBy
before calling count
. You can apply groupBy
later, if you need it for getting rows.
The proper way to determine the "type" of an object, which is a wobbly term in the Ruby world, is to call object.class
.
Since classes can inherit from other classes, if you want to determine if an object is "of a particular type" you might call object.is_a?(ClassName)
to see if object
is of type ClassName
or derived from it.
Normally type checking is not done in Ruby, but instead objects are assessed based on their ability to respond to particular methods, commonly called "Duck typing". In other words, if it responds to the methods you want, there's no reason to be particular about the type.
For example, object.is_a?(String)
is too rigid since another class might implement methods that convert it into a string, or make it behave identically to how String behaves. object.respond_to?(:to_s)
would be a better way to test that the object in question does what you want.
I still have the same issue in Neon.2 My solution is to disable the JPA Configurator.
Open the Eclipse Preferences (not the project prefs!). Go to Maven --> Java EE Integration and disable the JPA Configurator. I also disabled the JAX-RS Configurator and the JSF Configurator.
From that point on the JPA Project Change Event Handler doesn't show up anymore.
Restart Eclipse if the change does not take effect immediately.
Try doing something like this:
Pattern p = Pattern.compile("^.+(\\d+).+");
Matcher m = p.matcher("Testing123Testing");
if (m.find()) {
System.out.println(m.group(1));
}
It's a good idea that using two arc command to draw a full circle.
usually, I use ellipse or circle element to draw a full circle.
I tried the below code,
function executeQuery() {
$.ajax({
url: 'url/path/here',
success: function(data) {
// do something with the return value here if you like
}
});
setTimeout(executeQuery, 5000); // you could choose not to continue on failure...
}
$(document).ready(function() {
// run the first time; all subsequent calls will take care of themselves
setTimeout(executeQuery, 5000);
});
This didn't work as expected for the specified interval,the page didn't load completely and the function was been called continuously.
Its better to call setTimeout(executeQuery, 5000);
outside executeQuery()
in a separate function as below,
function executeQuery() {
$.ajax({
url: 'url/path/here',
success: function(data) {
// do something with the return value here if you like
}
});
updateCall();
}
function updateCall(){
setTimeout(function(){executeQuery()}, 5000);
}
$(document).ready(function() {
executeQuery();
});
This worked exactly as intended.
"Not equals" can be expressed with the "not" operator !
and the standard .equals
.
if (a.equals(b)) // a equals b
if (!a.equals(b)) // a not equal to b
I've used the code above that solves the problem using regex and it works, but it's quite slow. It reads the entire file to determine the number of pages.
I used it in a web app and pages would sometimes list 20 or 30 PDFs at a time and in that circumstance the load time for the page went from a couple seconds to almost a minute due to the page counting method.
I don't know if the 3rd party libraries are much better, I would hope that they are and I've used pdflib in other scenarios with success.
document.referrer
is not the same as the actual URL in all situations.
I have an application where I need to establish a frameset with 2 frames. One frame is known, the other is the page I am linking from. It would seem that document.referrer
would be ideal because you would not have to pass the actual file name to the frameset document.
However, if you later change the bottom frame page and then use history.back()
it does not load the original page into the bottom frame, instead it reloads document.referrer
and as a result the frameset is gone and you are back to the original starting window.
Took me a little while to understand this. So in the history array, document.referrer
is not only a URL, it is apparently the referrer window specification as well. At least, that is the best way I can understand it at this time.
sharer.php
The sharer will no longer accept custom parameters and facebook will pull the information that is being displayed in the preview the same way that it would appear on facebook as a post from the url OG meta tags.
Use dialog/feeds instead of sharer.php
https://www.facebook.com/dialog/feed?
app_id=145634995501895
&display=popup&caption=An%20example%20caption
&link=https%3A%2F%2Fdevelopers.facebook.com%2Fdocs%2Fdialogs%2F
&redirect_uri=https://developers.facebook.com/tools/explorer
To display the html/xml "as is" (i.e. all entities and elements), simply escape the characters <, &, and enclose the result with <pre>:
$XML = '<?xml version="1.0" encoding="UTF-8"?>
<root>
<foo>ó</foo>
<bar>ó</bar>
</root>';
$XML = str_replace('&', '&', $XML);
$XML = str_replace('<', '<', $XML);
echo '<pre>' . $XML . '</pre>';
Prints:
<?xml version="1.0" encoding="UTF-8"?>
<root>
<foo>ó</foo>
<bar>ó</bar>
</root>
Tested on Chrome 45
You do like this:
List<int>[] a = new List<int>[100];
Now you have an array of type List<int>
containing 100 null references. You have to create lists and put in the array, for example:
a[0] = new List<int>();
Most of the other answers point to eager loading, but I found another solution.
In my case I had an EF object InventoryItem
with a collection of InvActivity
child objects.
class InventoryItem {
...
// EF code first declaration of a cross table relationship
public virtual List<InvActivity> ItemsActivity { get; set; }
public GetLatestActivity()
{
return ItemActivity?.OrderByDescending(x => x.DateEntered).SingleOrDefault();
}
...
}
And since I was pulling from the child object collection instead of a context query (with IQueryable
), the Include()
function was not available to implement eager loading. So instead my solution was to create a context from where I utilized GetLatestActivity()
and attach()
the returned object:
using (DBContext ctx = new DBContext())
{
var latestAct = _item.GetLatestActivity();
// attach the Entity object back to a usable database context
ctx.InventoryActivity.Attach(latestAct);
// your code that would make use of the latestAct's lazy loading
// ie latestAct.lazyLoadedChild.name = "foo";
}
Thus you aren't stuck with eager loading.
Put sleep. It will work. I have tried. The reason is that the page wasn't loaded yet. Check this question to know how to wait for load - Wait for page load in Selenium
interface AccountSelectParams {
...
}
const params = { ... };
const tmpParams: { [key in keyof AccountSelectParams]: any } | undefined = {};
for (const key of Object.keys(params)) {
const customKey = (key as keyof typeof params);
if (key in params && params[customKey] && !this.state[customKey]) {
tmpParams[customKey] = params[customKey];
}
}
please commented if you get the idea of this concept
As you can see, 01/01/1970 returns 0, which means it is the lowest possible date.
new Date('1970-01-01Z00:00:00:000') //returns Thu Jan 01 1970 01:00:00 GMT+0100 (Central European Standard Time)
new Date('1970-01-01Z00:00:00:000').getTime() //returns 0
new Date('1970-01-01Z00:00:00:001').getTime() //returns 1
There are many ways to print that.
Let's have a look with another example.
a = 10
b = 20
c = a + b
#Normal string concatenation
print("sum of", a , "and" , b , "is" , c)
#convert variable into str
print("sum of " + str(a) + " and " + str(b) + " is " + str(c))
# if you want to print in tuple way
print("Sum of %s and %s is %s: " %(a,b,c))
#New style string formatting
print("sum of {} and {} is {}".format(a,b,c))
#in case you want to use repr()
print("sum of " + repr(a) + " and " + repr(b) + " is " + repr(c))
EDIT :
#New f-string formatting from Python 3.6:
print(f'Sum of {a} and {b} is {c}')
However, if you can reliably test your code to confirm that calling Collect() won't have a negative impact then go ahead...
IMHO, this is similar to saying "If you can prove that your program will never have any bugs in the future, then go ahead..."
In all seriousness, forcing the GC is useful for debugging/testing purposes. If you feel like you need to do it at any other times, then either you are mistaken, or your program has been built wrong. Either way, the solution is not forcing the GC...
You can only apply border-radius to td, not tr or table. I've gotten around this for rounded corner tables by using these styles:
table { border-collapse: separate; }
td { border: solid 1px #000; }
tr:first-child td:first-child { border-top-left-radius: 10px; }
tr:first-child td:last-child { border-top-right-radius: 10px; }
tr:last-child td:first-child { border-bottom-left-radius: 10px; }
tr:last-child td:last-child { border-bottom-right-radius: 10px; }
Be sure to provide all the vendor prefixes. Here's an example of it in action.
in python sorted
works like you want with integers:
>>> sorted([10,3,2])
[2, 3, 10]
it looks like you have a problem because you are using strings:
>>> sorted(['10','3','2'])
['10', '2', '3']
(because string ordering starts with the first character, and "1" comes before "2", no matter what characters follow) which can be fixed with key=int
>>> sorted(['10','3','2'], key=int)
['2', '3', '10']
which converts the values to integers during the sort (it is called as a function - int('10')
returns the integer 10
)
and as suggested in the comments, you can also sort the list itself, rather than generating a new one:
>>> l = ['10','3','2']
>>> l.sort(key=int)
>>> l
['2', '3', '10']
but i would look into why you have strings at all. you should be able to save and retrieve integers. it looks like you are saving a string when you should be saving an int? (sqlite is unusual amongst databases, in that it kind-of stores data in the same type as it is given, even if the table column type is different).
and once you start saving integers, you can also get the list back sorted from sqlite by adding order by ...
to the sql command:
select temperature from temperatures order by temperature;
Umair R's answer is mostly the right move to solve the problem, as this error used to be caused by the missing links between opencv libs and the programme. so there is the need to specify the ld_libraty_path configuration. ps. the usual library path is suppose to be:
export LD_LIBRARY_PATH=$LD_LIBRARY_PATH:/usr/local/lib
I have tried this and it worked well.
you don't need to declare Map groovy internally recognizes it
def personDetails = [firstName:'John', lastName:'Doe', fullName:'John Doe']
// print the values..
println "First Name: ${personDetails.firstName}"
println "Last Name: ${personDetails.lastName}"
Can I include GPL licensed code in a MIT licensed product?
You can. GPL is free software as well as MIT is, both licenses do not restrict you to bring together the code where as "include" is always two-way.
In copyright for a combined work (that is two or more works form together a work), it does not make much of a difference if the one work is "larger" than the other or not.
So if you include GPL licensed code in a MIT licensed product you will at the same time include a MIT licensed product in GPL licensed code as well.
As a second opinion, the OSI listed the following criteria (in more detail) for both licenses (MIT and GPL):
Both allow the creation of combined works, which is what you've been asking for.
If combining the two works is considered being a derivate, then this is not restricted as well by both licenses.
And both licenses do not restrict to distribute the software.
It seems to me that the chief difference between the MIT license and GPL is that the MIT doesn't require modifications be open sourced whereas the GPL does.
The GPL doesn't require you to release your modifications only because you made them. That's not precise.
You might mix this with distribiution of software under GPL which is not what you've asked about directly.
Is that correct - is the GPL is more restrictive than the MIT license?
This is how I understand it:
As far as distribution counts, you need to put the whole package under GPL. MIT code inside of the package will still be available under MIT whereas the GPL applies to the package as a whole if not limited by higher rights.
"Restrictive" or "more restrictive" / "less restrictive" depends a lot on the point of view. For a software-user the MIT might result in software that is more restricted than the one available under GPL even some call the GPL more restrictive nowadays. That user in specific will call the MIT more restrictive. It's just subjective to say so and different people will give you different answers to that.
As it's just subjective to talk about restrictions of different licenses, you should think about what you would like to achieve instead:
As long as you're the author it's you who can decide.
So the most restrictive person ever is the author, regardless of which license anybody is opting for ;)
Although this does not help you right away, there is an alternative that can work with both Unix (fcntl) and Windows (win32 api calls), called: portalocker
It describes itself as a cross-platform (posix/nt) API for flock-style file locking for Python. It basically maps fcntl to win32 api calls.
The original code at http://code.activestate.com/recipes/65203/ can now be installed as a separate package - https://pypi.python.org/pypi/portalocker
Its much easier than all this: Simply transition the same property on your element
.earth { width: 0.92%; transition: width 1s; }
.earth:hover { width: 50%; transition: width 1s; }
This pulls back client info as well.
var get = function(u){
var x = new XMLHttpRequest;
x.open('GET', u, false);
x.send();
return x.responseText;
}
JSON.parse(get('http://ifconfig.me/all.json'))
There was a problem once in ruby where files in windows needed an "fsync" to actually be able to turn around and re-read the file after writing it and closing it. Maybe this is a similar manifestation (and if so, I think a windows bug, really).
Another alternative:
myPlanetsList.Select(i => i.Moons).Sum();
Click event Bubbles, now what is meant by bubbling, a good point to starts is here.
you can use event.stopPropagation()
, if you don't want that event should propagate further.
Also a good link to refer on MDN
General Syntax:
7z a archive_name target parameters
Check your 7-Zip dir. Depending on the release you have, 7z may be replaced with 7za in the syntax.
Parameters:
Eg. This will prompt for a PW and hide file structures:
7z a archive_name target -p -mhe=on
Eg. No prompt, visible file structure:
7z a archive_name target -pPUT_PASSWORD_HERE
And so on. If you leave target blank, 7z will assume * in current directory and it will recurs directories by default.
If the types of the parameters are all the same (varchar2
for example), you can have a package like this which will do the following:
CREATE OR REPLACE PACKAGE testuser.test_pkg IS
TYPE assoc_array_varchar2_t IS TABLE OF VARCHAR2(4000) INDEX BY BINARY_INTEGER;
PROCEDURE your_proc(p_parm IN assoc_array_varchar2_t);
END test_pkg;
CREATE OR REPLACE PACKAGE BODY testuser.test_pkg IS
PROCEDURE your_proc(p_parm IN assoc_array_varchar2_t) AS
BEGIN
FOR i IN p_parm.first .. p_parm.last
LOOP
dbms_output.put_line(p_parm(i));
END LOOP;
END;
END test_pkg;
Then, to call it you'd need to set up the array and pass it:
DECLARE
l_array testuser.test_pkg.assoc_array_varchar2_t;
BEGIN
l_array(0) := 'hello';
l_array(1) := 'there';
testuser.test_pkg.your_proc(l_array);
END;
/
You cannot straightly query mongodb collections by date components like day or month. But its possible by using the special $where javascript expression
db.mydatabase.mycollection.find({$where : function() { return this.date.getMonth() == 11} })
or simply
db.mydatabase.mycollection.find({$where : 'return this.date.getMonth() == 11'})
(But i prefer the first one)
Check out the below shell commands to get the parts of date
>date = ISODate("2011-09-25T10:12:34Z")
> date.getYear()
111
> date.getMonth()
8
> date.getdate()
25
EDIT:
Use $where only if you have no other choice. It comes with the performance problems. Please check out the below comments by @kamaradclimber and @dcrosta. I will let this post open so the other folks get the facts about it.
and check out the link $where Clauses and Functions in Queries for more info
You should be using things like: KeyEvent.VK_UP instead of the actual code.
How are you wanting to refactor it? What is the goal of the refactoring?
When a program is not showing or displaying an output on the screen, using system("pause");
is the solution to it on a Windows profile.
The presence of the n
option attached to the -k5
causes the global -r
option to be ignored for that field. You have to specify both n
and r
at the same level (globally or locally).
sort -t $'\t' -k5,5rn
or
sort -rn -t $'\t' -k5,5
With C++17 (or later), you can use the "structured bindings" feature, which lets you define multiple variables, with different names, using a single tuple/pair. Example:
for (const auto& [name, description] : planet_descriptions) {
std::cout << "Planet " << name << ":\n" << description << "\n\n";
}
The original proposal (by luminaries Bjarne Stroustrup, Herb Sutter and Gabriel Dos Reis) is fun to read (and the suggested syntax is more intuitive IMHO); there's also the proposed wording for the standard which is boring to read but is closer to what will actually go in.
After doing some research, it seems I cannot have two connections opened to the same database with the TransactionScope block. I needed to modify my code to look like this:
public void MyAddUpdateMethod()
{
using (TransactionScope Scope = new TransactionScope(TransactionScopeOption.RequiresNew))
{
using(SQLServer Sql = new SQLServer(this.m_connstring))
{
//do my first add update statement
}
//removed the method call from the first sql server using statement
bool DoesRecordExist = this.SelectStatementCall(id)
}
}
public bool SelectStatementCall(System.Guid id)
{
using(SQLServer Sql = new SQLServer(this.m_connstring))
{
//create parameters
}
}
Another option is to use
int? accom = (accomStr == "noval" ? Convert.DBNull : Convert.ToInt32(accomStr);
I like this one most.
jspdf does not work with css but it can work along with html2canvas. You can use jspdf along with html2canvas.
include these two files in script on your page :
<script type="text/javascript" src="html2canvas.js"></script>
<script type="text/javascript" src="jspdf.min.js"></script>
<script type="text/javascript">
function genPDF()
{
html2canvas(document.body,{
onrendered:function(canvas){
var img=canvas.toDataURL("image/png");
var doc = new jsPDF();
doc.addImage(img,'JPEG',20,20);
doc.save('test.pdf');
}
});
}
</script>
You need to download script files such as https://github.com/niklasvh/html2canvas/releases https://cdnjs.com/libraries/jspdf
make clickable button on page so that it will generate pdf and it will be seen same as that of original html page.
<a href="javascript:genPDF()">Download PDF</a>
It will work perfectly.
Building on @ddilsaver's answer. I wanted to be able to use a sprite for the bullet. This appears to work:
li {
list-style: none;
position: relative;
}
li:before {
content:'';
display: block;
position: absolute;
width: 20px;
height: 20px;
left: -30px;
top: 5px;
background-image: url(i20.png);
background-position: 0px -40px; /* or whatever offset you want */
}
If you want to display the menu up, just add the class "dropup"
and remove the class "dropdown" if exists from the same div.
<div class="btn-group dropup">
I was looking for a listing of macOS but found nothing, maybe this helps someone.
Output on macOS Catalina (10.15.7) using net5.0
# SpecialFolders (Only with value)
SpecialFolder.ApplicationData: /Users/$USER/.config
SpecialFolder.CommonApplicationData: /usr/share
SpecialFolder.Desktop: /Users/$USER/Desktop
SpecialFolder.DesktopDirectory: /Users/$USER/Desktop
SpecialFolder.Favorites: /Users/$USER/Library/Favorites
SpecialFolder.Fonts: /Users/$USER/Library/Fonts
SpecialFolder.InternetCache: /Users/$USER/Library/Caches
SpecialFolder.LocalApplicationData: /Users/$USER/.local/share
SpecialFolder.MyDocuments: /Users/$USER
SpecialFolder.MyMusic: /Users/$USER/Music
SpecialFolder.MyPictures: /Users/$USER/Pictures
SpecialFolder.ProgramFiles: /Applications
SpecialFolder.System: /System
SpecialFolder.UserProfile: /Users/$USER
# SpecialFolders (All)
SpecialFolder.AdminTools:
SpecialFolder.ApplicationData: /Users/$USER/.config
SpecialFolder.CDBurning:
SpecialFolder.CommonAdminTools:
SpecialFolder.CommonApplicationData: /usr/share
SpecialFolder.CommonDesktopDirectory:
SpecialFolder.CommonDocuments:
SpecialFolder.CommonMusic:
SpecialFolder.CommonOemLinks:
SpecialFolder.CommonPictures:
SpecialFolder.CommonProgramFiles:
SpecialFolder.CommonProgramFilesX86:
SpecialFolder.CommonPrograms:
SpecialFolder.CommonStartMenu:
SpecialFolder.CommonStartup:
SpecialFolder.CommonTemplates:
SpecialFolder.CommonVideos:
SpecialFolder.Cookies:
SpecialFolder.Desktop: /Users/$USER/Desktop
SpecialFolder.DesktopDirectory: /Users/$USER/Desktop
SpecialFolder.Favorites: /Users/$USER/Library/Favorites
SpecialFolder.Fonts: /Users/$USER/Library/Fonts
SpecialFolder.History:
SpecialFolder.InternetCache: /Users/$USER/Library/Caches
SpecialFolder.LocalApplicationData: /Users/$USER/.local/share
SpecialFolder.LocalizedResources:
SpecialFolder.MyComputer:
SpecialFolder.MyDocuments: /Users/$USER
SpecialFolder.MyMusic: /Users/$USER/Music
SpecialFolder.MyPictures: /Users/$USER/Pictures
SpecialFolder.MyVideos:
SpecialFolder.NetworkShortcuts:
SpecialFolder.PrinterShortcuts:
SpecialFolder.ProgramFiles: /Applications
SpecialFolder.ProgramFilesX86:
SpecialFolder.Programs:
SpecialFolder.Recent:
SpecialFolder.Resources:
SpecialFolder.SendTo:
SpecialFolder.StartMenu:
SpecialFolder.Startup:
SpecialFolder.System: /System
SpecialFolder.SystemX86:
SpecialFolder.Templates:
SpecialFolder.UserProfile: /Users/$USER
SpecialFolder.Windows:
I have replaced my username with $USER.
Code Snippet from pogosama.
foreach(Environment.SpecialFolder f in Enum.GetValues(typeof(Environment.SpecialFolder)))
{
string commonAppData = Environment.GetFolderPath(f);
Console.WriteLine("{0}: {1}", f, commonAppData);
}
Console.ReadLine();
C strings are not anything like Java strings. They're essentially arrays of characters.
You are getting the error because strToLower returns a char. A char is a form of integer in C. You are assigning it into a char[] which is a pointer. Hence "converting integer to pointer".
Your strToLower makes all its changes in place, there is no reason for it to return anything, especially not a char. You should "return" void, or a char*.
On the call to strToLower, there is also no need for assignment, you are essentially just passing the memory address for cString1.
In my experience, Strings in C are the hardest part to learn for anyone coming from Java/C# background back to C. People can get along with memory allocation (since even in Java you often allocate arrays). If your eventual goal is C++ and not C, you may prefer to focus less on C strings, make sure you understand the basics, and just use the C++ string from STL.
what I'm doing wrong here?
Almost everything.
$today = date('Y-m-d'); // no need for strtotime
$sth = $db->prepare("SELECT id_email FROM db WHERE hardcopy = '1' AND hardcopy_date <= :today AND hardcopy_sent = '0' ORDER BY id_email ASC");
$sth->bindParam(':today',$today); // no need for PDO::PARAM_STR
$sth->execute(); // no need for if
$this->id_email = $sth->fetchAll(PDO::FETCH_COLUMN); // no need for while
return count($this->id_email); // no need for the everything else
effectively, you always have your fetched data (in this case in $this->id_email
variable) to tell whether your query returned anything or not. Read more in my article on PDO.
You can call setScale(newScale, roundingMode)
method three times with changing the newScale value from 4 to 3 to 2 like
First case
BigDecimal a = new BigDecimal("10.12345");
a = a.setScale(4, BigDecimal.ROUND_HALF_UP);
System.out.println("" + a); //10.1235
a = a.setScale(3, BigDecimal.ROUND_HALF_UP);
System.out.println("" + a); //10.124
a = a.setScale(2, BigDecimal.ROUND_HALF_UP);
System.out.println("" + a); //10.12
Second case
BigDecimal a = new BigDecimal("10.12556");
a = a.setScale(4, BigDecimal.ROUND_HALF_UP);
System.out.println("" + a); //10.1256
a = a.setScale(3, BigDecimal.ROUND_HALF_UP);
System.out.println("" + a); //10.126
a = a.setScale(2, BigDecimal.ROUND_HALF_UP);
System.out.println("" + a); //10.13
The problem you have is caused that you use the same ArrayList NodeList over all iterations in main for loop. Each iterations NodeList is enlarged by new elements.
After first loop, NodeList has 5 elements (PropertyStart,a,b,c,PropertyEnd) and list has 1 element (NodeList: (PropertyStart,a,b,c,PropertyEnd))
After second loop NodeList has 10 elements (PropertyStart,a,b,c,PropertyEnd,PropertyStart,d,e,f,PropertyEnd) and list has 2 elements (NodeList (with 10 elements), NodeList (with 10 elements))
To get you expectations you must replace
NodeList.addAll(nodes);
list.add(NodeList)
by
List childrenList = new ArrayList(nodes);
list.add(childrenList);
PS. Your code is not readable, keep Java code conventions to have readble code. For example is hard to recognize if NodeList is a class or object
setx FOOBAR ""
just causes the value of FOOBAR to be a null string. (Although, it shows with the set
command with the "" so maybe double-quotes is the string.)
I used:
set FOOBAR=
and then FOOBAR was no longer listed in the set command. (Log-off was not required.)
Windows 7 32 bit, using the command prompt, non-administrator is what I used. (Not cmd or Windows + R, which might be different.)
BTW, I did not see the variable I created anywhere in the registry after I created it. I'm using RegEdit not as administrator.
First, convert the int
(or another type) to String
,
int a = 1;
String value = String.valueOf(a);
Then, convert that String
to char
.
char newValue = value.charAt(0);
You can avoid empty output in this way...
System.out.println(newValue);
You can use mx.DateTime module
import mx.DateTime as mt
t1 = mt.now()
t2 = mt.now()
print int((t2-t1).seconds)
These hints helped me with my Ubuntu 14.04 LTS install,
In addition I needed to turn on the short_open_tag
in /etc/php5/fpm/php.ini
$ sudo kate /etc/php5/fpm/php.ini
short_open_tag = On
$ sudo service php5-fpm restart
$ sudo service nginx reload
Since Nov 17, 2015 you have to authenticate users to make any (even such as "get some pictures who have specific hashtag") requests. See the Instagram Platform Changelog:
Apps created on or after Nov 17, 2015: All API endpoints require a valid access_token. Apps created before Nov 17, 2015: Unaffected by new API behavior until June 1, 2016.
this makes now all answers given here before June 1, 2016 no longer useful.
You need to add the System.Web
reference;
While you are switching, switch to PDO instead of mysqli, It helps you write database agnositc code and have better features for prepared statements.
Bindparam for PDO: http://se.php.net/manual/en/pdostatement.bindparam.php
$sth = $dbh->prepare("SELECT * FROM tablename WHERE field1 = :value1 && field2 = :value2");
$sth->bindParam(':value1', 'foo');
$sth->bindParam(':value2', 'bar');
$sth->execute();
or:
$sth = $dbh->prepare("SELECT * FROM tablename WHERE field1 = ? && field2 = ?");
$sth->bindParam(1, 'foo');
$sth->bindParam(2, 'bar');
$sth->execute();
or execute with the parameters as an array:
$sth = $dbh->prepare("SELECT * FROM tablename WHERE field1 = :value1 && field2 = :value2");
$sth->execute(array(':value1' => 'foo' , ':value2' => 'bar'));
It will be easier for you if you would like your application to be able to run on different databases in the future.
I also think you should invest some time in using some of the classes from Zend Framwework whilst working with PDO. Check out their Zend_Db and more specifically [Zend_Db_Factory][2]. You do not have to use all of the framework or convert your application to the MVC pattern, but using the framework and reading up on it is time well spent.
There are differences with some exceptions, e.g. KeyboardInterrupt.
Reading PEP8:
A bare except: clause will catch SystemExit and KeyboardInterrupt exceptions, making it harder to interrupt a program with Control-C, and can disguise other problems. If you want to catch all exceptions that signal program errors, use except Exception: (bare except is equivalent to except BaseException:).
I understand the accepted answer, and have up-voted it but thought I'd dump my laymen's answer here...
Creating a hash
Checking a password against a hash
To check a password that a user inputs.
The Hash
Under the covers the hash is generated using the SHA1 hash function (https://en.wikipedia.org/wiki/SHA-1). This function is iteratively called 1000 times (In the default Identity implementation)
Why is this secure
I was running into a similar problem with a Service I was writing. It worked fine then one day I started getting the timeout on Start errors. It happened in one &/or both Release and Debug depending on what was going on. I had instantiated an EventLogger from System.Diagnostics, but whatever error I was seeing must have been happening before the Logger was able to write...
If you are not aware of where to look up the EventLogs, in VS you can go to your machine under the Server Explorer. I started poking around in some of the other EventLogs besides those for my Service. Under Application - .NETRuntime I found the Error logs pertinent to the error on startup. Basically, there were some exceptions in my service's constructor (one turned out to be an exception in the EventLog instance setup - which explained why I could not see any logs in my Service EventLog). On a previous build apparently there had been other errors (which had caused me to make the changes leading to the error in the EventLog set up).
Long story short - the reason for the timeout may be due to various exceptions/errors, but using the Runtime EventLogs may just help you figure out what is going on (especially in the instances where one build works but another doesn't).
Hope this helps!
Nobody has mentioned that FirstOrDefault translated in SQL does TOP 1 record, and SingleOrDefault does TOP 2, because it needs to know is there more than 1 record.
A little late to the party but in one line provided that you have glob2 and humanize installed. Note that in Python 3, the default iglob
has a recursive mode. How to modify the code for Python 3 is left as a trivial exercise for the reader.
>>> import os
>>> from humanize import naturalsize
>>> from glob2 import iglob
>>> naturalsize(sum(os.path.getsize(x) for x in iglob('/var/**'))))
'546.2 MB'
With python 3.6, these two lines return a list (may be empty)
>>[int(x) for x in re.findall('\d+', your_string)]
Similar to
>>list(map(int, re.findall('\d+', your_string))
I had got the same error and I had JDK 8 set as JAVA_HOME. It turned out that I had Android SDK Build-tools rev 25.0.2 installed. I removed this and installed 23.0.2 instead and it worked for me.
GitLab's "merge request" feature is equivalent to GitHub's "pull request" feature. Both are means of pulling changes from another branch or fork into your branch and merging the changes with your existing code. They are useful tools for code review and change management.
An article from GitLab discusses the differences in naming the feature:
Merge or pull requests are created in a git management application and ask an assigned person to merge two branches. Tools such as GitHub and Bitbucket choose the name pull request since the first manual action would be to pull the feature branch. Tools such as GitLab and Gitorious choose the name merge request since that is the final action that is requested of the assignee. In this article we'll refer to them as merge requests.
A "merge request" should not be confused with the git merge
command. Neither should a "pull request" be confused with the git pull
command. Both git
commands are used behind the scenes in both pull requests and merge requests, but a merge/pull request refers to a much broader topic than just these two commands.
Using an NSAttributedString string for your labels attributedText is probably your best bet. Check out this example.
This issue is because of your activity gets finished before the dismiss function gets called. Handle the exception and check your ADB log for the exact reason.
/**
* After completing background task Dismiss the progress dialog
* **/
protected void onPostExecute(String file_url) {
try {
if (pDialog!=null) {
pDialog.dismiss(); //This is line 624!
}
} catch (Exception e) {
// do nothing
}
something(note);
}
If you're just comparing for equality, you can just do this:
if not dict1 == dict2:
match = False
Otherwise, the only major problem I see is that you're going to get a KeyError if there is a key in dict1 that is not in dict2, so you may want to do something like this:
for key in dict1:
if not key in dict2 or dict1[key] != dict2[key]:
match = False
You could compress this into a comprehension to just get the list of keys that don't match too:
mismatch_keys = [key for key in x if not key in y or x[key] != y[key]]
match = not bool(mismatch_keys) #If the list is not empty, they don't match
for key in mismatch_keys:
print key
print '%s -> %s' % (dict1[key],dict2[key])
The only other optimization I can think of might be to use "len(dict)" to figure out which dict has fewer entries and loop through that one first to have the shortest loop possible.
Solved this bug with reinstall gulp
npm uninstall gulp
npm install gulp
How about this:
import unicodedata
def strip_accents(s):
return ''.join(c for c in unicodedata.normalize('NFD', s)
if unicodedata.category(c) != 'Mn')
This works on greek letters, too:
>>> strip_accents(u"A \u00c0 \u0394 \u038E")
u'A A \u0394 \u03a5'
>>>
The character category "Mn" stands for Nonspacing_Mark
, which is similar to unicodedata.combining in MiniQuark's answer (I didn't think of unicodedata.combining, but it is probably the better solution, because it's more explicit).
And keep in mind, these manipulations may significantly alter the meaning of the text. Accents, Umlauts etc. are not "decoration".
First, you can switch on an enum
in Java. I'm guessing you intended to say you can’t, but you can. char
s have a set range of values, so it's easy to compare. Strings can be anything.
A switch
statement is usually implemented as a jump table (branch table) in the underlying compilation, which is only possible with a finite set of values. C# can switch on strings, but it causes a performance decrease because a jump table cannot be used.
Java 7 and later supports String
switches with the same characteristics.
you need to use runtime permission in marshmallow https://developer.android.com/training/permissions/requesting.html
you can check in app info -> permission
is your app get permission for write external storage or not
One way is to stack the frames on top of each other, then you can simply raise one above the other in the stacking order. The one on top will be the one that is visible. This works best if all the frames are the same size, but with a little work you can get it to work with any sized frames.
Note: for this to work, all of the widgets for a page must have that page (ie: self
) or a descendant as a parent (or master, depending on the terminology you prefer).
Here's a bit of a contrived example to show you the general concept:
try:
import tkinter as tk # python 3
from tkinter import font as tkfont # python 3
except ImportError:
import Tkinter as tk # python 2
import tkFont as tkfont # python 2
class SampleApp(tk.Tk):
def __init__(self, *args, **kwargs):
tk.Tk.__init__(self, *args, **kwargs)
self.title_font = tkfont.Font(family='Helvetica', size=18, weight="bold", slant="italic")
# the container is where we'll stack a bunch of frames
# on top of each other, then the one we want visible
# will be raised above the others
container = tk.Frame(self)
container.pack(side="top", fill="both", expand=True)
container.grid_rowconfigure(0, weight=1)
container.grid_columnconfigure(0, weight=1)
self.frames = {}
for F in (StartPage, PageOne, PageTwo):
page_name = F.__name__
frame = F(parent=container, controller=self)
self.frames[page_name] = frame
# put all of the pages in the same location;
# the one on the top of the stacking order
# will be the one that is visible.
frame.grid(row=0, column=0, sticky="nsew")
self.show_frame("StartPage")
def show_frame(self, page_name):
'''Show a frame for the given page name'''
frame = self.frames[page_name]
frame.tkraise()
class StartPage(tk.Frame):
def __init__(self, parent, controller):
tk.Frame.__init__(self, parent)
self.controller = controller
label = tk.Label(self, text="This is the start page", font=controller.title_font)
label.pack(side="top", fill="x", pady=10)
button1 = tk.Button(self, text="Go to Page One",
command=lambda: controller.show_frame("PageOne"))
button2 = tk.Button(self, text="Go to Page Two",
command=lambda: controller.show_frame("PageTwo"))
button1.pack()
button2.pack()
class PageOne(tk.Frame):
def __init__(self, parent, controller):
tk.Frame.__init__(self, parent)
self.controller = controller
label = tk.Label(self, text="This is page 1", font=controller.title_font)
label.pack(side="top", fill="x", pady=10)
button = tk.Button(self, text="Go to the start page",
command=lambda: controller.show_frame("StartPage"))
button.pack()
class PageTwo(tk.Frame):
def __init__(self, parent, controller):
tk.Frame.__init__(self, parent)
self.controller = controller
label = tk.Label(self, text="This is page 2", font=controller.title_font)
label.pack(side="top", fill="x", pady=10)
button = tk.Button(self, text="Go to the start page",
command=lambda: controller.show_frame("StartPage"))
button.pack()
if __name__ == "__main__":
app = SampleApp()
app.mainloop()
If you find the concept of creating instance in a class confusing, or if different pages need different arguments during construction, you can explicitly call each class separately. The loop serves mainly to illustrate the point that each class is identical.
For example, to create the classes individually you can remove the loop (for F in (StartPage, ...)
with this:
self.frames["StartPage"] = StartPage(parent=container, controller=self)
self.frames["PageOne"] = PageOne(parent=container, controller=self)
self.frames["PageTwo"] = PageTwo(parent=container, controller=self)
self.frames["StartPage"].grid(row=0, column=0, sticky="nsew")
self.frames["PageOne"].grid(row=0, column=0, sticky="nsew")
self.frames["PageTwo"].grid(row=0, column=0, sticky="nsew")
Over time people have asked other questions using this code (or an online tutorial that copied this code) as a starting point. You might want to read the answers to these questions:
I think it's worth answering the generic question "R - test if string contains string" here.
For that, use the grep function.
# example:
> if(length(grep("ab","aacd"))>0) print("found") else print("Not found")
[1] "Not found"
> if(length(grep("ab","abcd"))>0) print("found") else print("Not found")
[1] "found"
Have you tried the traditional way? give the main container height:auto
#container{height:auto}
I have used this and it worked most of the times with me.
No, it is not okay to put a link
element in the body tag. See the specification (links to the HTML4.01 specs, but I believe it is true for all versions of HTML):
“This element defines a link. Unlike
A
, it may only appear in theHEAD
section of a document, although it may appear any number of times.”
You can't, since dict
is unordered. you can use .popitem()
to get an arbitrary item, but that will remove it from the dict.
Assume that the application folder is in your pen drive.
open eclipse, go to import,select Android,In Android select "existing android code into workspace"
next and finish.
Ramanand Bhat
Try underscore-cli:
cat myfile.json | underscore print --color
It's a pretty nifty tool that can elegantly do a lot of manipulation of structured data, execute js snippets, fill templates, etc. It's ridiculously well documented, polished, and ready for serious use. And I wrote it. :)
in case you need to use a bool param, you need just to assign the default value.
func test(WithFlag flag: Bool = false){.....}
then you can use without or with the param:
test() //here flag automatically has the default value: false
test(WithFlag: true) //here flag has the value: true
This is a blending of glenn jackman's and kurumi's answers which allows an arbitrary number of regexes instead of an arbitrary number of fixed words or a fixed set of regexes.
#!/usr/bin/awk -f
# by Dennis Williamson - 2011-01-25
BEGIN {
for (i=ARGC-2; i>=1; i--) {
patterns[ARGV[i]] = 0;
delete ARGV[i];
}
}
{
for (p in patterns)
if ($0 ~ p)
matches[p] = 1
# print # the matching line could be printed
}
END {
for (p in patterns) {
if (matches[p] != 1)
exit 1
}
}
Run it like this:
./multigrep.awk Dansk Norsk Svenska 'Language: .. - A.*c' dvdfile.dat
Here are some instructions on how to initiate a GitHub repository and then push code you've already created to it. The first set of instructions are directly from GitHub.
Source: https://help.github.com/articles/create-a-repo/
In the upper-right corner of any page, click, and then click New repository.
Create a short, memorable name for your repository. For example, "hello-world".
Optionally, add a description of your repository. For example, "My first repository on GitHub."
Choose between creating a public or private repository.
Initialize this repository with a README.
Create repository.
Congratulations! You've successfully created your first repository, and initialized it with a README file.
Now after these steps you will want to push the code on your local computer up to the repository you just created and you do this following these steps:
git init
(in the root folder where your code is located)
git add -A
(this will add all the files and folders in your directory to be committed)
git commit -am "First Project commit"
git remote add origin [email protected]:YourGithubName/your-repo-name.git
(you'll find this address on the GitHub repository you just created under "ssh clone URL" on the main page)
git push -u origin master
That's it. Your code will now be pushed up to GitHub. Now every time you want to keep pushing code that has changed just do.
git commit -m "New changes"
git push origin master
(if master is the branch you are working on)
The second formula on that page uses the GCD function of the Analysis ToolPak, you can add it from Tools > Add-Ins.
=A1/GCD(A1,B1)&":"&B1/GCD(A1,B1)
This is a more mathematical formula rather than a text manipulation based on.
Only use UDP if you really know what you are doing. UDP is in extremely rare cases today, but the number of (even very experienced) experts who would try to stick it everywhere seems to be out of proportion. Perhaps they enjoy implementing error-handling and connection maintenance code themselves.
TCP should be expected to be much faster with modern network interface cards due to what's known as checksum imprint. Surprisingly, at fast connection speeds (such as 1Gbps) computing a checksum would be a big load for a CPU so it is offloaded to NIC hardware that recognizes TCP packets for imprint, and it won't offer you the same service.
For me, I set two times:
(MimeBodyPart)messageBodyPart.setContent(content, text/html)
(Multipart)multipart.addBodyPart(messageBodyPart)
(MimeMessage)msg.setContent(multipart, text/html)
and its been working fine.
Finally, I get the cell using the following code:
UITableViewCell *cell = (UITableViewCell *)[(UITableView *)self.view cellForRowAtIndexPath:nowIndex];
Because the class is extended UITableViewController:
@interface SearchHotelViewController : UITableViewController
So, the self
is "SearchHotelViewController".
5 Jan 2021: link update thanks to @Sadap's comment.
Kind of a corollary answer: the people on this site have taken the time to make tables of macros defined for every OS/compiler pair.
For example, you can see that _WIN32
is NOT defined on Windows with Cygwin (POSIX), while it IS defined for compilation on Windows, Cygwin (non-POSIX), and MinGW with every available compiler (Clang, GNU, Intel, etc.).
Anyway, I found the tables quite informative and thought I'd share here.
In cmd when you use > or >> the output will be only written on the file. Is it possible to see the output in the cmd windows and also save it in a file. Something similar if you use teraterm, when you can start saving all the log in a file meanwhile you use the console and view it (only for ssh, telnet and serial).
If there are no spaces in paths, and you are interested, like I was, in files of specific extension only, you can use
git checkout otherBranch -- $(git ls-tree --name-only -r otherBranch | egrep '*.java')
wget -O yourfilename.zip remote-storage.url/theirfilename.zip
will do the trick for you.
Note:
a) its a capital O.
b) wget -O filename url
will only work. Putting -O
last will not.
Set oShell = WScript.CreateObject("WSCript.shell")
oShell.run "cmd cd /d C:dir_test\file_test & sanity_check_env.bat arg1"
These answers all collect shallow size information. I suspect that visitors to this question will end up here looking to answer the question, "How big is this complex object in memory?"
There's a great answer here: https://goshippo.com/blog/measure-real-size-any-python-object/
The punchline:
import sys
def get_size(obj, seen=None):
"""Recursively finds size of objects"""
size = sys.getsizeof(obj)
if seen is None:
seen = set()
obj_id = id(obj)
if obj_id in seen:
return 0
# Important mark as seen *before* entering recursion to gracefully handle
# self-referential objects
seen.add(obj_id)
if isinstance(obj, dict):
size += sum([get_size(v, seen) for v in obj.values()])
size += sum([get_size(k, seen) for k in obj.keys()])
elif hasattr(obj, '__dict__'):
size += get_size(obj.__dict__, seen)
elif hasattr(obj, '__iter__') and not isinstance(obj, (str, bytes, bytearray)):
size += sum([get_size(i, seen) for i in obj])
return size
Used like so:
In [1]: get_size(1)
Out[1]: 24
In [2]: get_size([1])
Out[2]: 104
In [3]: get_size([[1]])
Out[3]: 184
If you want to know Python's memory model more deeply, there's a great article here that has a similar "total size" snippet of code as part of a longer explanation: https://code.tutsplus.com/tutorials/understand-how-much-memory-your-python-objects-use--cms-25609
Your problem may be that you are dealing with DATETIME data, not just dates. If a row has a mydate that is '2008-11-25 09:30 AM', then your WHERE mydate<='2008-11-25'; is not going to return that row. '2008-11-25' has an implied time of 00:00 (midnight), so even though the date part is the same, they are not equal, and mydate is larger.
If you use < '2008-11-26' instead of <= '2008-11-25', that would work. The Datediff method works because it compares just the date portion, and ignores the times.
You could try stacking multiple blured shadows until the shadows look like a stroke, like so:
.shadowOutline {
text-shadow: 0 0 4px black, 0 0 4px black, 0 0 4px black, 0 0 4px black, 0 0 4px black, 0 0 4px black, 0 0 4px black, 0 0 4px black, 0 0 4px black, 0 0 4px black, 0 0 4px black, 0 0 4px black, 0 0 4px black, 0 0 4px black, 0 0 4px black, 0 0 4px black, 0 0 4px black, 0 0 4px black, 0 0 4px black, 0 0 4px black;
}
Here's a fiddle: http://jsfiddle.net/GGUYY/
I mention it just in case someone's interested, although I wouldn't call it a solution because it fails in various ways:
All the above is nice, but if you need to
then the following trick is the one and only way.
First learn how to create spool files or export result sets from the source db command line client. Second learn how to execute sql statements on the destination db.
Finally, create the insert statements (and any other statements) for the destination database by running an sql script on the source database. e.g.
SELECT '-- SET the correct schema' FROM dual;
SELECT 'USE test;' FROM dual;
SELECT '-- DROP TABLE IF EXISTS' FROM dual;
SELECT 'IF OBJECT_ID(''table3'', ''U'') IS NOT NULL DROP TABLE dbo.table3;' FROM dual;
SELECT '-- create the table' FROM dual;
SELECT 'CREATE TABLE table3 (column1 VARCHAR(10), column2 VARCHAR(10));' FROM dual;
SELECT 'INSERT INTO table3 (column1, column2) VALUES (''', table1.column1, ''',''', table2.column2, ''');' FROM table1 JOIN table2 ON table2.COLUMN1 = table1.COLUMN1;
The above example was created for Oracle's db where the use of dual is needed for table-less selects.
The result set will contain the script for the destination db.
You can create a function for this:
/**
* Split a string by string (Similar to the php function explode())
*
* @param VARCHAR(12) delim The boundary string (delimiter).
* @param VARCHAR(255) str The input string.
* @param INT pos The index of the string to return
* @return VARCHAR(255) The (pos)th substring
* @return VARCHAR(255) Returns the [pos]th string created by splitting the str parameter on boundaries formed by the delimiter.
* @{@example
* SELECT SPLIT_STRING('|', 'one|two|three|four', 1);
* This query
* }
*/
DROP FUNCTION IF EXISTS SPLIT_STRING;
CREATE FUNCTION SPLIT_STRING(delim VARCHAR(12), str VARCHAR(255), pos INT)
RETURNS VARCHAR(255) DETERMINISTIC
RETURN
REPLACE(
SUBSTRING(
SUBSTRING_INDEX(str, delim, pos),
LENGTH(SUBSTRING_INDEX(str, delim, pos-1)) + 1
),
delim, ''
);
Converting the magical pseudocode to use this, you would have:
SELECT e.`studentId`, SPLIT_STRING(',', c.`courseNames`, e.`courseId`)
FROM...
First check the value of session.save_path
using ini_get('session.save_path')
or phpinfo()
. If that is non-empty, then it will show where the session files are saved. In many scenarios it is empty by default, in which case read on:
On Ubuntu or Debian machines, if session.save_path
is not set, then session files are saved in /var/lib/php5
.
On RHEL and CentOS systems, if session.save_path
is not set, session files will be saved in /var/lib/php/session
I think that if you compile PHP from source, then when session.save_path
is not set, session files will be saved in /tmp
(I have not tested this myself though).
Syntax
DATEDIFF(expr1,expr2)
Description
DATEDIFF() returns (expr1 – expr2) expressed as a value in days from one date to the other. expr1 and expr2 are date or date-and-time expressions. Only the date parts of the values are used in the calculation.
@D Stanley
With OS > 3.0 you can do this:
//you need this import
#import <QuartzCore/QuartzCore.h>
[imageView.layer setBorderColor: [[UIColor blackColor] CGColor]];
[imageView.layer setBorderWidth: 2.0];
I had the same problem. It was because I had accidentally used a relative path with the symbolic link.
Are you sure you used full paths, e.g.:
ln -s /etc/nginx/sites-available/example.com.conf /etc/nginx/sites-enabled/example.com.conf
.button {
border: none;
background: url('/forms/up.png') no-repeat top left;
padding: 2px 8px;
}
Dim
is short for Dimension and is used in VBA and VB6 to declare local variables.
Set on the other hand, has nothing to do with variable declarations. The Set
keyword is used to assign an object variable to a new object.
Hope that clarifies the difference for you.
Following up on Peter's answer,
here the Mac version of the .pycharmrc
file:
source /etc/profile
source ~/.bash_profile
source <venv_dir>/bin/activate
Hen
To install ncurses-compat-libs
on Fedora 24 helped me on this issue
(unable to start adb error while loading shared libraries: libncurses.so.5
)
I have an implementation as part of a spreadsheet project.
This code is not yet tested thoroughly, but anyone is welcome to use it.
As some of the answers noted though, your implementation can be much simpler if you actually have DSV or TSV file, as they disallow the use of the record and field separators in the values. CSV, on the other hand, can actually have commas and newlines inside a field, which breaks most regular expression and split-based approaches.
var CSV = {
parse: function(csv, reviver) {
reviver = reviver || function(r, c, v) { return v; };
var chars = csv.split(''), c = 0, cc = chars.length, start, end, table = [], row;
while (c < cc) {
table.push(row = []);
while (c < cc && '\r' !== chars[c] && '\n' !== chars[c]) {
start = end = c;
if ('"' === chars[c]){
start = end = ++c;
while (c < cc) {
if ('"' === chars[c]) {
if ('"' !== chars[c+1]) {
break;
}
else {
chars[++c] = ''; // unescape ""
}
}
end = ++c;
}
if ('"' === chars[c]) {
++c;
}
while (c < cc && '\r' !== chars[c] && '\n' !== chars[c] && ',' !== chars[c]) {
++c;
}
} else {
while (c < cc && '\r' !== chars[c] && '\n' !== chars[c] && ',' !== chars[c]) {
end = ++c;
}
}
row.push(reviver(table.length-1, row.length, chars.slice(start, end).join('')));
if (',' === chars[c]) {
++c;
}
}
if ('\r' === chars[c]) {
++c;
}
if ('\n' === chars[c]) {
++c;
}
}
return table;
},
stringify: function(table, replacer) {
replacer = replacer || function(r, c, v) { return v; };
var csv = '', c, cc, r, rr = table.length, cell;
for (r = 0; r < rr; ++r) {
if (r) {
csv += '\r\n';
}
for (c = 0, cc = table[r].length; c < cc; ++c) {
if (c) {
csv += ',';
}
cell = replacer(r, c, table[r][c]);
if (/[,\r\n"]/.test(cell)) {
cell = '"' + cell.replace(/"/g, '""') + '"';
}
csv += (cell || 0 === cell) ? cell : '';
}
}
return csv;
}
};
In Web-"MVC" you can do whatever you please.
The original concept (1) described the model as the business logic. It should represent the application state and enforce some data consistency. That approach is often described as "fat model".
Most PHP frameworks follow a more shallow approach, where the model is just a database interface. But at the very least these models should still validate the incoming data and relations.
Either way, you're not very far off if you separate the SQL stuff or database calls into another layer. This way you only need to concern yourself with the real data/behaviour, not with the actual storage API. (It's however unreasonable to overdo it. You'll e.g. never be able to replace a database backend with a filestorage if that wasn't designed ahead.)
Do nothing to the browser. CORS is supported by default on all modern browsers (and since Firefox 3.5).
The server being accessed by JavaScript has to give the site hosting the HTML document in which the JS is running permission via CORS HTTP response headers.
security.fileuri.strict_origin_policy
is used to give JS in local HTML documents access to your entire hard disk. Don't set it to false
as it makes you vulnerable to attacks from downloaded HTML documents (including email attachments).
right click the highlight whose color you want to change
select "Preference"
->General->Editors->Text Editors->Annotations->Occurrences->Text as Hightlited->color.
Select "Preference ->java->Editor->Restore Defaults
lines = open(filename).read().splitlines()
That's because you're using a non-blocking
socket and the output buffer is full.
From the send()
man page
When the message does not fit into the send buffer of the socket,
send() normally blocks, unless the socket has been placed in non-block-
ing I/O mode. In non-blocking mode it would return EAGAIN in this
case.
EAGAIN is the error code tied to "Resource temporarily unavailable"
Consider using select()
to get a better control of this behaviours
I have come to this question and the one below several times.
how to call scalar function in sql server 2008
Each time, I try entering the Function using the syntax shown here in SQL Server Management Studio, or SSMS, to see the results, and each time I get the errors.
For me, that is because my result set is in tabular data format. Therefore, to see the results in SSMS, I have to call it like this:
SELECT * FROM dbo.Afisho_rankimin_TABLE(5);
I understand that the author's question involved a scalar function, so this answer is only to help others who come to StackOverflow often when they have a problem with a query (like me).
I hope this helps others.
Here's another way to do it, using a LINQ lambda:
C#:
SomeObject.GetType().GetProperties().ToList().ForEach(x => Console.WriteLine($"{x.Name} = {x.GetValue(SomeObject, null)}"));
VB.NET:
SomeObject.GetType.GetProperties.ToList.ForEach(Sub(x) Console.WriteLine($"{x.Name} = {x.GetValue(SomeObject, Nothing)}"))
I realize this question is now very old but, here goes nothin!
If the intent is to add a single class that implies the properties of multiple classes, as a native solution, I would recommend using JavaScript/jQuery (jQuery is really not necessary but certainly useful)
If you have, for instance .umbrellaClass
that "inherits" from .baseClass1
and .baseClass2
you could have some JavaScript that fires on ready.
$(".umbrellaClass").addClass("baseClass1");
$(".umbrellaClass").addClass("baseClass2");
Now all elements of .umbrellaClass
will have all the properties of both .baseClass
s. Note that, like OOP inheritance, .umbrellaClass
may or may not have its own properties.
The only caveat here is to consider whether there are elements being dynamically created that won't exist when this code fires, but there are simple ways around that as well.
Sucks css doesn't have native inheritance, though.
Get data from the URL and then call json.loads
e.g.
Python3 example:
import urllib.request, json
with urllib.request.urlopen("http://maps.googleapis.com/maps/api/geocode/json?address=google") as url:
data = json.loads(url.read().decode())
print(data)
Python2 example:
import urllib, json
url = "http://maps.googleapis.com/maps/api/geocode/json?address=google"
response = urllib.urlopen(url)
data = json.loads(response.read())
print data
The output would result in something like this:
{
"results" : [
{
"address_components" : [
{
"long_name" : "Charleston and Huff",
"short_name" : "Charleston and Huff",
"types" : [ "establishment", "point_of_interest" ]
},
{
"long_name" : "Mountain View",
"short_name" : "Mountain View",
"types" : [ "locality", "political" ]
},
{
...
SELECT *, CONVERT( UNCOMPRESS(column) USING "utf8" ) AS column FROM table_name
You can be more precise with CSS background-origin:
background-origin: content-box;
This will make image respect the padding of the box.
To answer a little more conceptually:
SelectedValuePath
defines which property (by its name) of the objects bound to the ListBox's ItemsSource
will be used as the item's SelectedValue
.
For example, if your ListBox is bound to a collection of Person
objects, each of which has Name
, Age
, and Gender
properties, SelectedValuePath=Name
will cause the value of the selected Person
's Name
property to be returned in SelectedValue
.
Note that if you override the ListBox's ControlTemplate (or apply a Style) that specifies what property should display, SelectedValuePath
cannot be used.
SelectedItem
, meanwhile, returns the entire Person
object currently selected.
(Here's a further example from MSDN, using TreeView)
Update: As @Joe pointed out, the DisplayMemberPath property is unrelated to the Selected* properties. Its proper description follows:
Note that these values are distinct from DisplayMemberPath
(which is defined on ItemsControl, not Selector), but that property has similar behavior to SelectedValuePath
: in the absence of a style/template, it identifies which property of the object bound to item should be used as its string representation.
Escape the backslash:
if message.value[0] == "/" or message.value[0] == "\\":
From the documentation:
The backslash (\) character is used to escape characters that otherwise have a special meaning, such as newline, backslash itself, or the quote character.