You just subindex it with [:5]
indicating that you want (up to) the first 5 elements.
>>> [1,2,3,4,5,6,7,8][:5]
[1, 2, 3, 4, 5]
>>> [1,2,3][:5]
[1, 2, 3]
>>> x = [6,7,8,9,10,11,12]
>>> x[:5]
[6, 7, 8, 9, 10]
Also, putting the colon on the right of the number means count from the nth element onwards -- don't forget that lists are 0-based!
>>> x[5:]
[11, 12]
I found that the first solution in the accepted answer to be problematic for cases where the newline character is still required. The easiest solution to the problem was doing this:
numpy.savetxt(filename, [a], delimiter='\t')
Code
PL_CONNECT_STRING="$DB_USERNAME/$DB_PASSWORD@$DB_SERVICE"
OUTPUT=$(sqlplus -s $PL_CONNECT_STRING <<-END-OF-SQL
select count(*) from table;
exit;
END-OF-SQL)
echo "COMPLETED GATHER STATS $OUTPUT";
Explanation:
PL_CONNECT_STRING
carry database username, password and it service name
sqlplus is used to connect the Database with PL_CONNECT_STRING
details
END-OF-SQL
tag contain the query which you want to execute
echo
is used to print the output of the query
NOTE: You can give multiple Query inside the END-OF-SQL
tag, so its useful for batch execution as well
f(n)
belongs to O(n)
if exists positive k
as f(n)<=k*n
f(n)
belongs to T(n)
if exists positive k1
, k2
as k1*n<=f(n)<=k2*n
Sometimes it might depend on whether you are using code to access the database or not. If you are using "DriverJet" in your code instead of "DriverACE" (or an older version of the DAO library) such a problem is highly probable to happen. You just need to replace "DriverJet" with "DriverACE" and test.
int id = getResources().getIdentifier("gameover", "drawable", getPackageName());
ImageView imageView = new ImageView(this);
LinearLayout.LayoutParams vp =
new LinearLayout.LayoutParams(LayoutParams.WRAP_CONTENT,
LayoutParams.WRAP_CONTENT);
imageView.setLayoutParams(vp);
imageView.setImageResource(id);
someLinearLayout.addView(imageView);
If you want to search on both FROM and TO airports, you'll want to join on the Airports table twice - then you can use both from and to tables in your results set:
SELECT
Flights.*,fromAirports.*,toAirports.*
FROM
Flights
INNER JOIN
Airports fromAirports on Flights.fairport = fromAirports.code
INNER JOIN
Airports toAirports on Flights.tairport = toAirports.code
WHERE
...
Expanding on Paul's answer - here's my version of working with associative sub-arrays in bash:
declare -A SUB_1=(["name1key"]="name1val" ["name2key"]="name2val")
declare -A SUB_2=(["name3key"]="name3val" ["name4key"]="name4val")
STRING_1="string1val"
STRING_2="string2val"
MAIN_ARRAY=(
"${SUB_1[*]}"
"${SUB_2[*]}"
"${STRING_1}"
"${STRING_2}"
)
echo "COUNT: " ${#MAIN_ARRAY[@]}
for key in ${!MAIN_ARRAY[@]}; do
IFS=' ' read -a val <<< ${MAIN_ARRAY[$key]}
echo "VALUE: " ${val[@]}
if [[ ${#val[@]} -gt 1 ]]; then
for subkey in ${!val[@]}; do
subval=${val[$subkey]}
echo "SUBVALUE: " ${subval}
done
fi
done
It works with mixed values in the main array - strings/arrays/assoc. arrays
The key here is to wrap the subarrays in single quotes and use *
instead of @
when storing a subarray inside the main array so it would get stored as a single, space separated string: "${SUB_1[*]}"
Then it makes it easy to parse an array out of that when looping through values with IFS=' ' read -a val <<< ${MAIN_ARRAY[$key]}
The code above outputs:
COUNT: 4
VALUE: name1val name2val
SUBVALUE: name1val
SUBVALUE: name2val
VALUE: name4val name3val
SUBVALUE: name4val
SUBVALUE: name3val
VALUE: string1val
VALUE: string2val
We can generate tuples from a list comprehension. The following one adds two numbers sequentially into a tuple and gives a list from numbers 0-9.
>>> print k
[0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 64, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74, 75, 76, 77, 78, 79, 80, 81, 82, 83, 84, 85, 86, 87, 88, 89, 90, 91, 92, 93, 94, 95, 96, 97, 98, 99]
>>> r= [tuple(k[i:i+2]) for i in xrange(10) if not i%2]
>>> print r
[(0, 1), (2, 3), (4, 5), (6, 7), (8, 9)]
From the javascript I tried from several ways and I could not.
You need an server side solution, for example on c# I did create an controller that call to the http, en deserialize the object, and the result is that when I call from javascript, I'm doing an request from my https://domain to my htpps://domain. Please see my c# code:
[Authorize]
public class CurrencyServicesController : Controller
{
HttpClient client;
//GET: CurrencyServices/Consultar?url=valores?moedas=USD&alt=json
public async Task<dynamic> Consultar(string url)
{
client = new HttpClient();
client.BaseAddress = new Uri("http://api.promasters.net.br/cotacao/v1/");
client.DefaultRequestHeaders.Accept.Add(new System.Net.Http.Headers.MediaTypeWithQualityHeaderValue("application/json"));
System.Net.Http.HttpResponseMessage response = client.GetAsync(url).Result;
var FromURL = response.Content.ReadAsStringAsync().Result;
return JsonConvert.DeserializeObject(FromURL);
}
And let me show to you my client side (Javascript)
<script async>
$(document).ready(function (data) {
var TheUrl = '@Url.Action("Consultar", "CurrencyServices")?url=valores';
$.getJSON(TheUrl)
.done(function (data) {
$('#DolarQuotation').html(
'$ ' + data.valores.USD.valor.toFixed(2) + ','
);
$('#EuroQuotation').html(
'€ ' + data.valores.EUR.valor.toFixed(2) + ','
);
$('#ARGPesoQuotation').html(
'Ar$ ' + data.valores.ARS.valor.toFixed(2) + ''
);
});
});
I wish that this help you! Greetings
This all depends on what sort of access you have to your SAP system. An ABAP program that exports the data and/or an RFC that your macro can call to directly get the data or have SAP create the file is probably best.
However as a general rule people looking for this sort of answer are looking for an immediate solution that does not require their IT department to spend months customizing their SAP system.
In that case you probably want to use SAP GUI Scripting. SAP GUI scripting allows you to automate the Windows SAP GUI in much the same way as you automate Excel. In fact you can call the SAP GUI directly from an Excel macro. Read up more on it here. The SAP GUI has a macro recording tool much like Excel does. It records macros in VBScript which is nearly identical to Excel VBA and can usually be copied and pasted into an Excel macro directly.
Here is a simple example based on a SAP system I have access to.
Public Sub SimpleSAPExport()
Set SapGuiAuto = GetObject("SAPGUI") 'Get the SAP GUI Scripting object
Set SAPApp = SapGuiAuto.GetScriptingEngine 'Get the currently running SAP GUI
Set SAPCon = SAPApp.Children(0) 'Get the first system that is currently connected
Set session = SAPCon.Children(0) 'Get the first session (window) on that connection
'Start the transaction to view a table
session.StartTransaction "SE16"
'Select table T001
session.findById("wnd[0]/usr/ctxtDATABROWSE-TABLENAME").Text = "T001"
session.findById("wnd[0]/tbar[1]/btn[7]").Press
'Set our selection criteria
session.findById("wnd[0]/usr/txtMAX_SEL").text = "2"
session.findById("wnd[0]/tbar[1]/btn[8]").press
'Click the export to file button
session.findById("wnd[0]/tbar[1]/btn[45]").press
'Choose the export format
session.findById("wnd[1]/usr/subSUBSCREEN_STEPLOOP:SAPLSPO5:0150/sub:SAPLSPO5:0150/radSPOPLI-SELFLAG[1,0]").select
session.findById("wnd[1]/tbar[0]/btn[0]").press
'Choose the export filename
session.findById("wnd[1]/usr/ctxtDY_FILENAME").text = "test.txt"
session.findById("wnd[1]/usr/ctxtDY_PATH").text = "C:\Temp\"
'Export the file
session.findById("wnd[1]/tbar[0]/btn[0]").press
End Sub
To help find the names of elements such aswnd[1]/tbar[0]/btn[0]
you can use script recording.
Click the customize local layout button, it probably looks a bit like this:
Then find the Script Recording and Playback menu item.
Within that the More
button allows you to see/change the file that the VB Script is recorded to. The output format is a bit messy, it records things like selecting text, clicking inside a text field, etc.
The provided script should work if copied directly into a VBA macro. It uses late binding, the line Set SapGuiAuto = GetObject("SAPGUI")
defines the SapGuiAuto object.
If however you want to use early binding so that your VBA editor might show the properties and methods of the objects you are using, you need to add a reference to sapfewse.ocx
in the SAP GUI installation folder.
You can use std::to_string in C++11
double d = 3.0;
std::string str = std::to_string(d);
It's actually much easier with jQuery's promise API:
$.ajax(
type: "GET",
url: requestURL,
).then((success) =>
console.dir(success)
).failure((failureResponse) =>
console.dir(failureResponse)
)
Alternatively, you can pass in of bind
functions to each result callback; the order of parameters is: (success, failure)
. So long as you specify a function with at least 1 parameter, you get access to the response. So, for example, if you wanted to check the response text, you could simply do:
$.ajax(
type: "GET",
url: @get("url") + "logout",
beforeSend: (xhr) -> xhr.setRequestHeader("token", currentToken)
).failure((response) -> console.log "Request was unauthorized" if response.status is 401
The modern (systemctl
) way of doing it:
systemctl is-active nginx
You can use the exit value in your shell scripts as follows:
systemctl -q is-active nginx && echo "It is active, do something"
If you have objects, not structs (or strings), then you'll have to intersect their keys first, and then select objects by those keys:
var ids = list1.Select(x => x.Id).Intersect(list2.Select(x => x.Id));
var result = list1.Where(x => ids.Contains(x.Id));
Kotlin:
var ver: String = packageManager.getPackageInfo(packageName, 0).versionName
See http://instagram.com/developer/endpoints/ for information on pagination
. You need to subsequentially step through the result pages, each time requesting the next part with the next_url
that the result specifies in the pagination
object.
x is the target angle. y is the source or starting angle:
atan2(sin(x-y), cos(x-y))
It returns the signed delta angle. Note that depending on your API the order of the parameters for the atan2() function might be different.
I have several projects in a solution. For some of the projects, I previously added the references manually. When I used NuGet to update the WebAPI package, those references were not updated automatically.
I found out that I can either manually update those reference so they point to the v5 DLL inside the Packages folder of my solution or do the following.
In command mode (press Esc if you are not sure) you can use:
If you don't care if the code within the timer
may take longer than your interval, use setInterval()
:
setInterval(function, delay)
That fires the function passed in as first parameter over and over.
A better approach is, to use setTimeout
along with a self-executing anonymous
function:
(function(){
// do some stuff
setTimeout(arguments.callee, 60000);
})();
that guarantees, that the next call is not made before your code was executed. I used arguments.callee
in this example as function reference. It's a better way to give the function a name and call that within setTimeout
because arguments.callee
is deprecated in ecmascript 5.
If both application have the same signature (meaning that both APPS are yours and signed with the same key), you can call your other app activity as follows:
Intent LaunchIntent = getActivity().getPackageManager().getLaunchIntentForPackage(CALC_PACKAGE_NAME);
startActivity(LaunchIntent);
Hope it helps.
Bootstrap 4 has two dependencies: jQuery 1.9.1 and popper.js 1.12.3. When you install Bootstrap 4, you need to install these two dependencies.
npm install popper.js@^1.12.3 --save
npm install [email protected] --save
npm install [email protected] --save
For Bootstrap 4.1
npm install popper.js@^1.14.3 --save
npm install [email protected] --save
npm install [email protected] --save
JavaScript has a Number
type which is a 64 bit floating point number*.
If you're looking to convert a string to a number, use
parseInt
or parseFloat
. If using parseInt
, I'd recommend always passing the radix too.+
operator e.g. +"123456"
Number
constructor e.g. var n = Number("12343")
*there are situations where the number will internally be held as an integer.
I'm using an MVC / MVA design pattern, with multiple types of "views". One type is a "GuiView", which is a Tk window. I pass a view reference to my window object which does things like link buttons back to view functions (which the adapter / controller class also calls).
In order to do that, the view object constructor needed to be completed prior to creating the window object. After creating and displaying the window, I wanted to do some initial tasks with the view automatically. At first I tried doing them post mainloop(), but that didn't work because mainloop() blocked!
As such, I created the window object and used tk.update() to draw it. Then, I kicked off my initial tasks, and finally started the mainloop.
import Tkinter as tk
class Window(tk.Frame):
def __init__(self, master=None, view=None ):
tk.Frame.__init__( self, master )
self.view_ = view
""" Setup window linking it to the view... """
class GuiView( MyViewSuperClass ):
def open( self ):
self.tkRoot_ = tk.Tk()
self.window_ = Window( master=None, view=self )
self.window_.pack()
self.refresh()
self.onOpen()
self.tkRoot_.mainloop()
def onOpen( self ):
""" Do some initial tasks... """
def refresh( self ):
self.tkRoot_.update()
what i have tried is that first i took the integer input and checked that whether its is negative or not if its negative then again take the input
Scanner s=new Scanner(System.in);
int a=s.nextInt();
while(a<0)
{
System.out.println("please provide non negative integer input ");
a=s.nextInt();
}
System.out.println("the non negative integer input is "+a);
Here, you need to take the character input first and check whether user gave character or not if not than again take the character input
char ch = s.findInLine(".").charAt(0);
while(!Charcter.isLetter(ch))
{
System.out.println("please provide a character input ");
ch=s.findInLine(".").charAt(0);
}
System.out.println("the character input is "+ch);
The only way I was able to do this is via this code (TD tables). I tested in outlook client 2010. I also tested via webmail client and it worked for both.
The only things you have to do is change your_image.jpg (there are two instances of this for the same image make sure you update both for your code) and #your_color.
<td bgcolor="#your_color" background="your_image.jpg">
<!--[if gte mso 9]>
<v:image xmlns:v="urn:schemas-microsoft-com:vml" id="theImage" style='behavior: url(#default#VML); display:inline-block; position:absolute; height:300px; width:600px; top:0; left:0; border:0; z-index:1;' src="your_image.jpg"/>
<v:shape xmlns:v="urn:schemas-microsoft-com:vml" id="theText" style='behavior: url(#default#VML); display:inline-block; position:absolute; height:300px; width:600px; top:-5; left:-10; border:0; z-index:2;'>
<![endif]-->
<p>Text over background image.</p>
<!--[if gte mso 9]>
</v:shape>
<![endif]-->
</td>
If you have a ConstraintLayout
with some size, and a child View
with some smaller size, you can achieve centering by constraining the child's two edges to the same two edges of the parent. That is, you can write:
app:layout_constraintTop_toTopOf="parent"
app:layout_constraintBottom_toBottomOf="parent"
or
app:layout_constraintLeft_toLeftOf="parent"
app:layout_constraintRight_toRightOf="parent"
Because the view is smaller, these constraints are impossible. But ConstraintLayout
will do the best it can, and each constraint will "pull" at the child view equally, thereby centering it.
This concept works with any target view, not just the parent.
Below is XML that achieves your desired UI with no nesting of views and no Guideline
s (though guidelines are not inherently evil).
<android.support.constraint.ConstraintLayout
xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/apk/res-auto"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:background="#eee">
<TextView
android:id="@+id/title1"
android:layout_width="0dp"
android:layout_height="wrap_content"
android:layout_marginBottom="12dp"
android:gravity="center"
android:textColor="#777"
android:textSize="22sp"
android:text="10"
app:layout_constraintTop_toTopOf="parent"
app:layout_constraintLeft_toLeftOf="parent"
app:layout_constraintRight_toLeftOf="@+id/divider1"
app:layout_constraintBottom_toBottomOf="parent"/>
<TextView
android:id="@+id/label1"
android:layout_width="0dp"
android:layout_height="wrap_content"
android:gravity="center"
android:textColor="#777"
android:textSize="12sp"
android:text="Streak"
app:layout_constraintTop_toBottomOf="@+id/title1"
app:layout_constraintLeft_toLeftOf="parent"
app:layout_constraintRight_toLeftOf="@+id/divider1"/>
<View
android:id="@+id/divider1"
android:layout_width="1dp"
android:layout_height="55dp"
android:layout_marginTop="12dp"
android:layout_marginBottom="12dp"
android:background="#ccc"
app:layout_constraintTop_toTopOf="parent"
app:layout_constraintLeft_toRightOf="@+id/title1"
app:layout_constraintRight_toLeftOf="@+id/title2"
app:layout_constraintBottom_toBottomOf="parent"/>
<TextView
android:id="@+id/title2"
android:layout_width="0dp"
android:layout_height="wrap_content"
android:layout_marginBottom="12dp"
android:gravity="center"
android:textColor="#777"
android:textSize="22sp"
android:text="243"
app:layout_constraintTop_toTopOf="parent"
app:layout_constraintLeft_toRightOf="@+id/divider1"
app:layout_constraintRight_toLeftOf="@+id/divider2"
app:layout_constraintBottom_toBottomOf="parent"/>
<TextView
android:id="@+id/label2"
android:layout_width="0dp"
android:layout_height="wrap_content"
android:gravity="center"
android:textColor="#777"
android:textSize="12sp"
android:text="Calories Burned"
app:layout_constraintTop_toBottomOf="@+id/title2"
app:layout_constraintLeft_toRightOf="@+id/divider1"
app:layout_constraintRight_toLeftOf="@+id/divider2"/>
<View
android:id="@+id/divider2"
android:layout_width="1dp"
android:layout_height="55dp"
android:layout_marginTop="12dp"
android:layout_marginBottom="12dp"
android:background="#ccc"
app:layout_constraintTop_toTopOf="parent"
app:layout_constraintLeft_toRightOf="@+id/title2"
app:layout_constraintRight_toLeftOf="@+id/title3"
app:layout_constraintBottom_toBottomOf="parent"/>
<TextView
android:id="@+id/title3"
android:layout_width="0dp"
android:layout_height="wrap_content"
android:layout_marginBottom="12dp"
android:gravity="center"
android:textColor="#777"
android:textSize="22sp"
android:text="3200"
app:layout_constraintTop_toTopOf="parent"
app:layout_constraintLeft_toRightOf="@+id/divider2"
app:layout_constraintRight_toRightOf="parent"
app:layout_constraintBottom_toBottomOf="parent"/>
<TextView
android:id="@+id/label3"
android:layout_width="0dp"
android:layout_height="wrap_content"
android:gravity="center"
android:textColor="#777"
android:textSize="12sp"
android:text="Steps"
app:layout_constraintTop_toBottomOf="@+id/title3"
app:layout_constraintLeft_toRightOf="@+id/divider2"
app:layout_constraintRight_toRightOf="parent"/>
</android.support.constraint.ConstraintLayout>
This error appears when you are using SQL Server Authentication and SQL Server is not allowed to access the bulk load folder.
So giving SQL server access to the folder will solve the issue.
Here is how to: Go to the folder right click ->properties->Security tab->Edit->Add(on the new window) ->Advanced -> Find Now. Under the users list in the search results, find something like SQLServerMSSQLUser$UserName$SQLExpress and click ok, to all the dialogs opened.
here you go
var str = "['abc',['def','ghi'],'jkl']";
//'[\'abc\',[\'def\',\'ghi\'],\'jkl\']'
str.replace(/[\[\]']/g,'' );
//'abc,def,ghi,jkl'
I found following way which can be used if you KNOW name of lock
select IS_USED_LOCK('lockname');
however i not found any info about how to list all names.
Here is a good guide.
The most important point is: Just make sure that you make a small piece of code that we can run to see what the problem is. A useful function for this is dput()
, but if you have very large data, you might want to make a small sample dataset or only use the first 10 lines or so.
EDIT:
Also make sure that you identified where the problem is yourself. The example should not be an entire R script with "On line 200 there is an error". If you use the debugging tools in R (I love browser()
) and Google you should be able to really identify where the problem is and reproduce a trivial example in which the same thing goes wrong.
As said before, your function is calculating a straight line distance to the destination point. If you want the driving distance/route, you can use Google Maps Distance Matrix Service:
getDrivingDistanceBetweenTwoLatLong(origin, destination) {
return new Observable(subscriber => {
let service = new google.maps.DistanceMatrixService();
service.getDistanceMatrix(
{
origins: [new google.maps.LatLng(origin.lat, origin.long)],
destinations: [new google.maps.LatLng(destination.lat, destination.long)],
travelMode: 'DRIVING'
}, (response, status) => {
if (status !== google.maps.DistanceMatrixStatus.OK) {
console.log('Error:', status);
subscriber.error({error: status, status: status});
} else {
console.log(response);
try {
let valueInMeters = response.rows[0].elements[0].distance.value;
let valueInKms = valueInMeters / 1000;
subscriber.next(valueInKms);
subscriber.complete();
}
catch(error) {
subscriber.error({error: error, status: status});
}
}
});
});
}
Here are 3 examples:
$(document).on('click', 'ul li a', function (e) {_x000D_
e.preventDefault();_x000D_
_x000D_
var example1 = $(this).parents('ul:first').attr('id');_x000D_
$('#results').append('<p>Result from example 1: <strong>' + example1 + '</strong></p>');_x000D_
_x000D_
var example2 = $(this).parents('ul:eq(0)').attr('id');_x000D_
$('#results').append('<p>Result from example 2: <strong>' + example2 + '</strong></p>');_x000D_
_x000D_
var example3 = $(this).closest('ul').attr('id');_x000D_
$('#results').append('<p>Result from example 3: <strong>' + example3 + '</strong></p>');_x000D_
_x000D_
_x000D_
});
_x000D_
<script src="https://ajax.googleapis.com/ajax/libs/jquery/1.11.1/jquery.min.js"></script>_x000D_
<ul id ="myList">_x000D_
<li><a href="www.example.com">Click here</a></li>_x000D_
</ul>_x000D_
_x000D_
<div id="results">_x000D_
<h1>Results:</h1>_x000D_
</div>
_x000D_
Let me know whether it was helpful.
Another option is to format your axis tick labels with commas is by using the package scales
, and add
scale_y_continuous(name="Fluorescent intensity/arbitrary units", labels = comma)
to your ggplot statement.
If you don't want to load the package, use:
scale_y_continuous(name="Fluorescent intensity/arbitrary units", labels = scales::comma)
**Adding this for the future me.**
I encountered this because I was reusing Laravel's "HomeController", and adding my custom functions to it. Note that this controller calls the auth
middleware in its __construct()
method as shown below, which means that all functions must be authenticated. No wonder it tries to take you to login page first. So, if you are not using Laravel's authentication scafffolding, you will be in a mess. Disable the constructor, or do as you seem fit, now that you know what is happening.
public function __construct()
{
$this->middleware('auth');
}
In the Android Studio go to File
then Close Project
. Then take the folder (in the workspace folder) of the project and copy it to a flash memory or whatever. Then when you get comfortable at home, copy this folder in the workspace folder you've already created, open the Android Studio and go to File
then Open
and import this project into your workspace.
The problem you have with this is that you're searching for the wrong term here, because in Android, exporting a project means compiling it to .apk
file (not exporting the project). Import/Export is used for the .apk
management, what you need is Open/Close project, the other thing is just copy/paste.
EditText ein=(EditText)findViewById(R.id.edittext1);
TextView t=new TextView(this);
t.setText("Your Text is="+ein.getText());
setContentView(t);
Another solution would be to set MAVEN_OPTS
(or other environment variables) in ${user.home}/.mavenrc
(or %HOME%\mavenrc_pre.bat
on windows).
Since Maven 3.3.1 there are new possibilities to set mvn command line parameters, if this is what you actually want:
${maven.projectBasedir}/.mvn/maven.config
${maven.projectBasedir}/.mvn/jvm.config
Use nnz instead of sum. No need for the double call to collapse matrices to vectors and it is likely faster than sum.
nnz(your_matrix == 5)
SELECT DATEADD(minute, -15, '2000-01-01 08:30:00');
The second value (-15 in this case) must be numeric (i.e. not a string like '00:15'). If you need to subtract hours and minutes I would recommend splitting the string on the : to get the hours and minutes and subtracting using something like
SELECT DATEADD(minute, -60 * @h - @m, '2000-01-01 08:30:00');
where @h is the hour part of your string and @m is the minute part of your string
EDIT:
Here is a better way:
SELECT CAST('2000-01-01 08:30:00' as datetime) - CAST('00:15' AS datetime)
You can use the %
operator to find the remainder of a division, and compare the result with 0
.
Example:
if (number % divisor == 0)
{
//code for perfect divisor
}
else
{
//the number doesn't divide perfectly by divisor
}
You can use sum
to sum the elements of a list, however if your list is coming from raw_input
, you probably want to convert the items to int
or float
first:
l = raw_input().split(' ')
sum(map(int, l))
Refer Here which is 100% working
https://stackoverflow.com/a/59357398/11863405
Static Header for Gridview Control
Update for those using Python3:
You can simply use conda install mysqlclient
to install the libraries required to use MySQLdb as it currently exists. The following SO question was a helpful clue: Python 3 ImportError: No module named 'ConfigParser' . Installing mysqlclient will install mysqlclient, mysql-connector, and llvmdev (at least, it installed these 3 libraries on my machine).
Here is the tale of my rambling experience with this problem. Would love to see it edited or generalised if you have better experience of the issue... apply a bit of that SO magic.
Note: Comments in next paragraph applied to Snow Leopard, but not to Lion, which appears to require 64-bit MySQL
First off, the author (still?) of MySQLdb says here that one of the most pernicious problems is that OS X comes installed with a 32 bit version of Python, but most average joes (myself included) probably jump to install the 64 bit version of MySQL. Bad move... remove the 64 bit version if you have installed it (instructions on this fiddly task are available on SO here), then download and install the 32 bit version (package here)
There are numerous step-by-steps on how to build and install the MySQLdb libraries. They often have subtle differences. This seemed the most popular to me, and provided the working solution. I've reproduced it with a couple of edits below
Step 0: Before I start, I assume that you have MySQL, Python, and GCC installed on the mac.
Step 1: Download the latest MySQL for Python adapter from SourceForge.
Step 2: Extract your downloaded package:
tar xzvf MySQL-python-1.2.2.tar.gz
Step 3: Inside the folder, clean the package:
sudo python setup.py clean
COUPLE OF EXTRA STEPS, (from this comment)
Step 3b: Remove everything under your MySQL-python-1.2.2/build/* directory -- don't trust the "python setup.py clean" to do it for you
Step 3c: Remove the egg under Users/$USER/.python-eggs
Step 4: Originally required editing _mysql.c, but is now NO LONGER NECESSARY. MySQLdb community seem to have fixed this bug now.
Step 5: Create a symbolic link under lib to point to a sub-directory called mysql. This is where it looks for during compilation.
sudo ln -s /usr/local/mysql/lib /usr/local/mysql/lib/mysql
Step 6: Edit the setup_posix.py and change the following
mysql_config.path = "mysql_config"
to
mysql_config.path = "/usr/local/mysql/bin/mysql_config"
Step 7: In the same directory, rebuild your package (ignore the warnings that comes with it)
sudo python setup.py build
Step 8: Install the package and you are done.
sudo python setup.py install
Step 9: Test if it's working. It works if you can import MySQLdb.
python
>>> import MySQLdb
Step 10:
If upon trying to import you receive an error complaining that Library not loaded: libmysqlclient.18.dylib
ending with: Reason: image not found
you need to create one additional symlink which is:
sudo ln -s /usr/local/mysql/lib/libmysqlclient.18.dylib /usr/lib/libmysqlclient.18.dylib
You should then be able to import MySQLdb
without any errors.
One final hiccup though is that if you start Python from the build directory you will get this error:
/Library/Python/2.5/site-packages/MySQL_python-1.2.3c1-py2.5-macosx-10.5-i386.egg/_mysql.py:3: UserWarning: Module _mysql was already imported from /Library/Python/2.5/site-packages/MySQL_python-1.2.3c1-py2.5-macosx-10.5-i386.egg/_mysql.pyc, but XXXX/MySQL-python-1.2.3c1 is being added to sys.path
This is pretty easy to Google, but to save you the trouble you will end up here (or maybe not... not a particularly future-proof URL) and figure out that you need to cd ..
out of build directory and the error should disappear.
As I wrote at the top, I'd love to see this answer generalised, as there are numerous other specific experiences of this horrible problem out there. Edit away, or provide your own, better answer.
I'm not going to get in a debate about whether or not this method should be used, but this will let you set specific css attributes for IE8-9 only (note: it is not a selector, so a bit different than what you asked):
Use '\0/' after each css declaration, so:
#nav li ul {
left: -39px\0/ !important;
}
And to build off another answer, you can do this to assign variou styles to IE6, IE7, and IE8:
#nav li ul {
*left: -7px !important; /* IE 7 (IE6 also uses this, so put it first) */
_left: -6px !important; /* IE 6 */
left: -8px\0/ !important; /* IE 8-9 */
}
source: http://dimox.net/personal-css-hacks-for-ie6-ie7-ie8/
Process:
Example:
Say, opening any browser (mozilla, Chrome, IE). At this point new process will start to execute.
Threads:
Example:
Opening multiple tabs in the browser.
For the Background, make sure you have imported java.awt.Color
into your package.
In your main
method, i.e. public static void main(String[] args)
, call the already imported method:
JLabel name_of_your_label=new JLabel("the title of your label");
name_of_your_label.setBackground(Color.the_color_you_wish);
name_of_your_label.setOpaque(true);
NB: Setting opaque will affect its visibility. Remember the case sensitivity in Java.
StartsWith
a) left(@edition, 15) = 'Express Edition'
b) charindex('Express Edition', @edition) = 1
Contains
charindex('Express Edition', @edition) >= 1
Examples
left
function
set @isExpress = case when left(@edition, 15) = 'Express Edition' then 1 else 0 end
iif
function (starting with SQL Server 2012)
set @isExpress = iif(left(@edition, 15) = 'Express Edition', 1, 0);
charindex
function
set @isExpress = iif(charindex('Express Edition', @edition) = 1, 1, 0);
You could try using https://www.printnode.com which is essentially exactly the service that you are looking for. You download and install a desktop client onto the users computer - https://www.printnode.com/download. You can then discover and print to any printers on that user's computer using their JSON API https://www.printnode.com/docs/api/curl/. They have lots of libs here: https://github.com/PrintNode/
Just adding to the above answer, In a web application
@valid
is used where the bean to be validated is also annotated with validation annotations e.g. @NotNull
, @Email
(hibernate annotation) so when while getting input from user the values can be validated and binding result will have the validation results.
bindingResult.hasErrors()
will tell if any validation failed.
KEY
is normally a synonym for INDEX
. The key attribute PRIMARY KEY
can also be specified as just KEY
when given in a column definition. This was implemented for compatibility with other database systems.
column_definition:
data_type [NOT NULL | NULL] [DEFAULT default_value]
[AUTO_INCREMENT] [UNIQUE [KEY] | [PRIMARY] KEY]
...
Ref: http://dev.mysql.com/doc/refman/5.1/en/create-table.html
There is also some simple solution without mapping node_module
directory into another volume. It's about to move installing npm packages into final CMD command.
Disadvantage of this approach:
- run
npm install
each time you run container (switching fromnpm
toyarn
might also speed up this process a bit).
FROM node:0.12
WORKDIR /worker
COPY package.json /worker/
COPY . /worker/
CMD /bin/bash -c 'npm install; npm start'
redis:
image: redis
worker:
build: ./worker
ports:
- "9730:9730"
volumes:
- worker/:/worker/
links:
- redis
RewriteEngine On
RewriteCond %{THE_REQUEST} ^[A-Z]{3,9}\ /(.*)index\.php($|\ |\?)
RewriteRule ^ /%1 [R=301,L]
What's going on is that you're returning right after the first line of the file doesn't match the id you're looking for. You have to do this:
def query(id):
for line in file:
table = {}
(table["ID"],table["name"],table["city"]) = line.split(";")
if id == int(table["ID"]):
file.close()
return table
# ID not found; close file and return empty dict
file.close()
return {}
The [:-1]
removes the last element. Instead of
a[3:-1]
write
a[3:]
You can read up on Python slicing notation here: Explain Python's slice notation
NumPy slicing is an extension of that. The NumPy tutorial has some coverage: Indexing, Slicing and Iterating.
Just put this in your batch file where you want the wait.
@ping 127.0.0.1 -n 11 -w 1000 > null
You can set timeout like this,
con.setConnectTimeout(connectTimeout);
con.setReadTimeout(socketTimeout);
Yes, MySQL has a REPLACE() function:
mysql> SELECT REPLACE('www.mysql.com', 'w', 'Ww');
-> 'WwWwWw.mysql.com'
http://dev.mysql.com/doc/refman/5.0/en/string-functions.html#function_replace
Note that it's easier if you make that an alias when using SELECT
SELECT REPLACE(string_column, 'search', 'replace') as url....
strikes = [number_map[int(x)] for x in input_str.split()]
You get an element from a dict using these []
brackets, not these ()
.
If you want millisecond precision, try this:
CREATE TABLE my_table (
timestamp DATETIME DEFAULT (strftime('%Y-%m-%dT%H:%M:%fZ', 'now'))
);
This will save the timestamp as text, though.
First you need to input the two numbers say num_rows and num_columns perhaps using argc and argv then do a for loop to print the dots.
int j=0;
int k=0;
for (k=0;k<num_columns;k++){
for (j=0;j<num_rows;j++){
printf(".");
}
printf("\n");
}
you'd have to replace the dot with something else later.
A dynamic $HOME/.zshrc
solution, if you're like me ie. Linux @ work; MBP/A @ home
if [[ $(uname) == "Darwin" ]]; then export OSX=1; fi
if [[ $(uname) == "Linux" ]]; then export LINUX=1; fi
if [[ -n $OSX ]]; then
export JAVA_HOME=$(/usr/libexec/java_home)
else
export JAVA_HOME=/usr/lib/jvm/default-java
fi
The default behavior is:
If the parameter is a primitive type (int
, bool
, double
, ...), Web API tries to get the value from the URI of the HTTP request.
For complex types (your own object, for example: Person
), Web API tries to read the value from the body of the HTTP request.
So, if you have:
...then you don't have to add any attributes (neither [FromBody]
nor [FromUri]
).
But, if you have a primitive type in the body, then you have to add [FromBody]
in front of your primitive type parameter in your WebAPI controller method. (Because, by default, WebAPI is looking for primitive types in the URI of the HTTP request.)
Or, if you have a complex type in your URI, then you must add [FromUri]
. (Because, by default, WebAPI is looking for complex types in the body of the HTTP request by default.)
Primitive types:
public class UsersController : ApiController
{
// api/users
public HttpResponseMessage Post([FromBody]int id)
{
}
// api/users/id
public HttpResponseMessage Post(int id)
{
}
}
Complex types:
public class UsersController : ApiController
{
// api/users
public HttpResponseMessage Post(User user)
{
}
// api/users/user
public HttpResponseMessage Post([FromUri]User user)
{
}
}
This works as long as you send only one parameter in your HTTP request. When sending multiple, you need to create a custom model which has all your parameters like this:
public class MyModel
{
public string MyProperty { get; set; }
public string MyProperty2 { get; set; }
}
[Route("search")]
[HttpPost]
public async Task<dynamic> Search([FromBody] MyModel model)
{
// model.MyProperty;
// model.MyProperty2;
}
From Microsoft's documentation for parameter binding in ASP.NET Web API:
When a parameter has [FromBody], Web API uses the Content-Type header to select a formatter. In this example, the content type is "application/json" and the request body is a raw JSON string (not a JSON object). At most one parameter is allowed to read from the message body.
This should work:
public HttpResponseMessage Post([FromBody] string name) { ... }
This will not work:
// Caution: This won't work! public HttpResponseMessage Post([FromBody] int id, [FromBody] string name) { ... }
The reason for this rule is that the request body might be stored in a non-buffered stream that can only be read once.
You can use
str1.compareTo(str2);
If str1 is lexicographically less than str2, a negative number
will be returned, 0
if equal or a positive number
if str1 is greater.
E.g.,
"a".compareTo("b"); // returns a negative number, here -1
"a".compareTo("a"); // returns 0
"b".compareTo("a"); // returns a positive number, here 1
"b".compareTo(null); // throws java.lang.NullPointerException
try this query below:
Insert into tab1 (tab1.column1,tab1.column2)
select tab2.column1, 'hard coded value'
from tab2
where tab2.column='value';
var defaultsettings = {
ajaxsettings: {
...
},
uisettings: {
...
}
};
You're calling both wait
and notifyAll
without using a synchronized
block. In both cases the calling thread must own the lock on the monitor you call the method on.
From the docs for notify
(wait
and notifyAll
have similar documentation but refer to notify
for the fullest description):
This method should only be called by a thread that is the owner of this object's monitor. A thread becomes the owner of the object's monitor in one of three ways:
- By executing a synchronized instance method of that object.
- By executing the body of a synchronized statement that synchronizes on the object.
- For objects of type Class, by executing a synchronized static method of that class.
Only one thread at a time can own an object's monitor.
Only one thread will be able to actually exit wait
at a time after notifyAll
as they'll all have to acquire the same monitor again - but all will have been notified, so as soon as the first one then exits the synchronized block, the next will acquire the lock etc.
Use proper escaping: string.split("\\|")
Or, in Java 5+, use the helper Pattern.quote()
which has been created for exactly this purpose:
string.split(Pattern.quote("|"))
which works with arbitrary input strings. Very useful when you need to quote / escape user input.
[[UITabBar appearance] setTintColor:[UIColor redColor]];
[[UITabBar appearance] setBarTintColor:[UIColor yellowColor]];
Try the Select helper class and see if that makes any difference?
String valueToSelect= "Germany";
WebElement select = driver.findElement(By.id("selection"));
Select dropDown = new Select(select);
String selected = dropDown.getFirstSelectedOption().getText();
if(selected.equals(valueToSelect)) {//do stuff already selected}
List<WebElement> Options = dropDown.getOptions();
for(WebElement option:Options){
if(option.getText().equals(valueToSelect)){
option.click();
}
}
My site is hosted on MochaHost, i had a tough time to setup the .htaccess file so that i can remove the index.php from my urls. However, after some googling, i combined the answer on this thread and other answers. My final working .htaccess file has the following contents:
<IfModule mod_rewrite.c>
# Turn on URL rewriting
RewriteEngine On
# If your website begins from a folder e.g localhost/my_project then
# you have to change it to: RewriteBase /my_project/
# If your site begins from the root e.g. example.local/ then
# let it as it is
RewriteBase /
# Protect application and system files from being viewed when the index.php is missing
RewriteCond $1 ^(application|system|private|logs)
# Rewrite to index.php/access_denied/URL
RewriteRule ^(.*)$ index.php/access_denied/$1 [PT,L]
# Allow these directories and files to be displayed directly:
RewriteCond $1 ^(index\.php|robots\.txt|favicon\.ico|public|app_upload|assets|css|js|images)
# No rewriting
RewriteRule ^(.*)$ - [PT,L]
# Rewrite to index.php/URL
RewriteRule ^(.*)$ index.php?/$1 [PT,L]
</IfModule>
Use isinstance
, nothing else:
if isinstance(x, pd.DataFrame):
... # do something
PEP8 says explicitly that isinstance
is the preferred way to check types
No: type(x) is pd.DataFrame
No: type(x) == pd.DataFrame
Yes: isinstance(x, pd.DataFrame)
And don't even think about
if obj.__class__.__name__ = 'DataFrame':
expect_problems_some_day()
isinstance
handles inheritance (see What are the differences between type() and isinstance()?). For example, it will tell you if a variable is a string (either str
or unicode
), because they derive from basestring
)
if isinstance(obj, basestring):
i_am_string(obj)
Specifically for pandas
DataFrame
objects:
import pandas as pd
isinstance(var, pd.DataFrame)
on body tag's onLoad try setting it like
document.getElementById("subEmail").style.backgroundColor = "yellow";
and after that on change of that input field check if some value is there, or paint it yellow like
function checkFilled() {
var inputVal = document.getElementById("subEmail");
if (inputVal.value == "") {
inputVal.style.backgroundColor = "yellow";
}
}
There is no WPF equivalent. System.Windows.Forms.Screen
is still part of the .NET framework and can be used from WPF though.
See this question for more details, but you can use the calls relating to screens by using the WindowInteropHelper
class to wrap your WPF control.
I had the same issue happening. When I checked the error.log I found that my disk was full.
Use:
df -h
on the command line. it will tell you how much space you have left. mine was full. found my error.log file was 4.77GB. I downloaded it and then deleted it. Then I used service mysqld start and it worked.
using (SqlConnection connection = new SqlConnection(connectionString))
{
connection.Open();
using (SqlCommand command = connection.CreateCommand())
{
command.CommandText = "INSERT INTO klant(klant_id,naam,voornaam) VALUES(@param1,@param2,@param3)";
command.Parameters.AddWithValue("@param1", klantId));
command.Parameters.AddWithValue("@param2", klantNaam));
command.Parameters.AddWithValue("@param3", klantVoornaam));
command.ExecuteNonQuery();
}
}
If you are running webpack-dev-server
in a container and are sending requests to it via its container name, you will get this error. To allow requests from other containers on the same network, simply provide the container name (or whatever name is used to resolve the container) using the --public
option. This is better than disabling the security check entirely.
In my case, I was running webpack-dev-server
in a container named assets
with docker-compose. I changed the start command to this:
webpack-dev-server --mode development --host 0.0.0.0 --public assets
And the other container was now able to make requests via http://assets:5000
.
This isn't a bad structure; it will work just fine. However, you do have to have functions in a function to do commands when someone clicks on a button or something
So what you could do is write classes for these then have methods in the class that handle commands for the button clicks and such.
Here's an example:
import tkinter as tk
class Window1:
def __init__(self, master):
pass
# Create labels, entries,buttons
def button_click(self):
pass
# If button is clicked, run this method and open window 2
class Window2:
def __init__(self, master):
#create buttons,entries,etc
def button_method(self):
#run this when button click to close window
self.master.destroy()
def main(): #run mianloop
root = tk.Tk()
app = Window1(root)
root.mainloop()
if __name__ == '__main__':
main()
Usually tk programs with multiple windows are multiple big classes and in the __init__
all the entries, labels etc are created and then each method is to handle button click events
There isn't really a right way to do it, whatever works for you and gets the job done as long as its readable and you can easily explain it because if you cant easily explain your program, there probably is a better way to do it.
Take a look at Thinking in Tkinter.
It can also be done this way:
figure(xx);
set(gcf, 'name', 'Name goes here')
gcf
gets the current figure handle.
There's a cool tool made by @kovart called the dashed border generator.
It uses an svg as a background image to allow setting the stroke dash array you desire, and is pretty convenient.
You would then simply use it as the background property on your element in place of the border:
div {
background-image: url("data:image/svg+xml,%3csvg width='100%25' height='100%25' xmlns='http://www.w3.org/2000/svg'%3e%3crect width='100%25' height='100%25' fill='none' stroke='black' stroke-width='4' stroke-dasharray='6%2c 14' stroke-dashoffset='0' stroke-linecap='square'/%3e%3c/svg%3e");
padding: 20px;
display: inline-block;
}
In my case the following solved the problem:
oracle.dataaccess.dll
to the bin
file by browsing the file location or just from the refence list in .NET
tab.Off hand the code looks right. What if you try using an 'Else' and see what happens?
IF @SchoolCategoryCode = 'Elem'
--- We now have determined we are processing an elementary school...
BEGIN
---- Only do the following if the variable @Term equals a 3 - if it does not, skip just this first part
IF @Term = 3
BEGIN
INSERT INTO @Classes
SELECT
XXXXXX
FROM XXXX blah blah blah
INSERT INTO @Classes
SELECT
XXXXXXXX
FROM XXXXXX (more code)
END <----(Should this be ENDIF?)
ELSE
BEGIN
INSERT INTO @Classes
SELECT
XXXXXXXX
FROM XXXXXX (more code)
END
END
There you go: (a-zA-Z)
function codeToChar( number ) {
if ( number >= 0 && number <= 25 ) // a-z
number = number + 97;
else if ( number >= 26 && number <= 51 ) // A-Z
number = number + (65-26);
else
return false; // range error
return String.fromCharCode( number );
}
input: 0-51, or it will return false (range error);
OR:
var codeToChar = function() {
var abc = "abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ".split("");
return function( code ) {
return abc[code];
};
})();
returns undefined in case of range error. NOTE: the array will be created only once and because of closure it will be available for the the new codeToChar function. I guess it's even faster then the first method (it's just a lookup basically).
Use LINQ if you can.
label1.Text = dataGridView1.Rows.Cast<DataGridViewRow>()
.AsEnumerable()
.Sum(x => int.Parse(x.Cells[1].Value.ToString()))
.ToString();
Remember that HTML and XML are two distinct concepts in the tree of markup languages. You can't exactly replace HTML with XML . XML can be viewed as a generalized form of HTML, but even that is imprecise. You mainly use HTML to display data, and XML to carry(or store) the data.
This link is helpful: How to read HTML as XML?
"Connection reset by peer" is the TCP/IP equivalent of slamming the phone back on the hook. It's more polite than merely not replying, leaving one hanging. But it's not the FIN-ACK expected of the truly polite TCP/IP converseur. (From other SO answer)
So you can't do anything about it, it is the issue of the server.
But you could use try .. except
block to handle that exception:
from socket import error as SocketError
import errno
try:
response = urllib2.urlopen(request).read()
except SocketError as e:
if e.errno != errno.ECONNRESET:
raise # Not error we are looking for
pass # Handle error here.
MySqlBDConfig.java
@Configuration
@EnableTransactionManagement
@EnableJpaRepositories(basePackages = "PACKAGE OF YOUR CRUDS USING MYSQL DATABASE",entityManagerFactoryRef = "mysqlEmFactory" ,transactionManagerRef = "mysqlTransactionManager")
public class MySqlBDConfig{
@Autowired
private Environment env;
@Bean(name="mysqlProperities")
@ConfigurationProperties(prefix="spring.mysql")
public DataSourceProperties mysqlProperities(){
return new DataSourceProperties();
}
@Bean(name="mysqlDataSource")
public DataSource interfaceDS(@Qualifier("mysqlProperities")DataSourceProperties dataSourceProperties){
return dataSourceProperties.initializeDataSourceBuilder().build();
}
@Primary
@Bean(name="mysqlEmFactory")
public LocalContainerEntityManagerFactoryBean mysqlEmFactory(@Qualifier("mysqlDataSource")DataSource mysqlDataSource,EntityManagerFactoryBuilder builder){
return builder.dataSource(mysqlDataSource).packages("PACKAGE OF YOUR MODELS").build();
}
@Bean(name="mysqlTransactionManager")
public PlatformTransactionManager mysqlTransactionManager(@Qualifier("mysqlEmFactory")EntityManagerFactory factory){
return new JpaTransactionManager(factory);
}
}
H2DBConfig.java
@Configuration
@EnableTransactionManagement
@EnableJpaRepositories(basePackages = "PACKAGE OF YOUR CRUDS USING MYSQL DATABASE",entityManagerFactoryRef = "dsEmFactory" ,transactionManagerRef = "dsTransactionManager")
public class H2DBConfig{
@Autowired
private Environment env;
@Bean(name="dsProperities")
@ConfigurationProperties(prefix="spring.h2")
public DataSourceProperties dsProperities(){
return new DataSourceProperties();
}
@Bean(name="dsDataSource")
public DataSource dsDataSource(@Qualifier("dsProperities")DataSourceProperties dataSourceProperties){
return dataSourceProperties.initializeDataSourceBuilder().build();
}
@Bean(name="dsEmFactory")
public LocalContainerEntityManagerFactoryBean dsEmFactory(@Qualifier("dsDataSource")DataSource dsDataSource,EntityManagerFactoryBuilder builder){
LocalContainerEntityManagerFactoryBean em = builder.dataSource(dsDataSource).packages("PACKAGE OF YOUR MODELS").build();
HibernateJpaVendorAdapter ven = new HibernateJpaVendorAdapter();
em.setJpaVendorAdapter(ven);
HashMap<String, Object> prop = new HashMap<>();
prop.put("hibernate.dialect", env.getProperty("spring.jpa.properties.hibernate.dialect"));
prop.put("hibernate.show_sql", env.getProperty("spring.jpa.show-sql"));
em.setJpaPropertyMap(prop);
em.afterPropertiesSet();
return em;
}
@Bean(name="dsTransactionManager")
public PlatformTransactionManager dsTransactionManager(@Qualifier("dsEmFactory")EntityManagerFactory factory){
return new JpaTransactionManager(factory);
}
}
application.properties
#---mysql DATASOURCE---
spring.mysql.driverClassName = com.mysql.jdbc.Driver
spring.mysql.url = jdbc:mysql://127.0.0.1:3306/test
spring.mysql.username = root
spring.mysql.password = root
#----------------------
#---H2 DATASOURCE----
spring.h2.driverClassName = org.h2.Driver
spring.h2.url = jdbc:h2:file:~/test
spring.h2.username = root
spring.h2.password = root
#---------------------------
#------JPA-----
spring.jpa.properties.hibernate.dialect = org.hibernate.dialect.H2Dialect
spring.jpa.show-sql=true
spring.jpa.properties.hibernate.temp.use_jdbc_metadata_defaults = false
spring.jpa.hibernate.ddl-auto = update
spring.jpa.properties.hibernate.enable_lazy_load_no_trans=true
Application.java
@SpringBootApplication
public class Application {
public static void main(String[] args) {
ApplicationContext ac=SpringApplication.run(KeopsSageInvoiceApplication.class, args);
UserMysqlDao userRepository = ac.getBean(UserMysqlDao.class)
//for exemple save a new user using your repository
userRepository.save(new UserMysql());
}
}
I use the ffmpeg-python
binding. You can find more information here.
import ffmpeg
(
ffmpeg
.input('/path/to/jpegs/*.jpg', pattern_type='glob', framerate=25)
.output('movie.mp4')
.run()
)
<span ng-if="verifyName.indicator == 1"><i class="fa fa-check"></i></span>
<span ng-if="verifyName.indicator == 0"><i class="fa fa-times"></i></span>
try this code. here verifyName.indicator value is coming from controller. this works for me.
The idea is that you rely on dependency injection (inversion of control, or IoC). That is, your components are configured with the components they need. These dependencies are injected (via the constructor or setters) - you don't get then yourself.
ApplicationContext.getBean()
requires you to name a bean explicitly within your component. Instead, by using IoC, your configuration can determine what component will be used.
This allows you to rewire your application with different component implementations easily, or configure objects for testing in a straightforward fashion by providing mocked variants (e.g. a mocked DAO so you don't hit a database during testing)
Another way to do this (without explicit multiplication or division operators):
def rnd(x, b=5):
return round(x + min(-(x % b), b - (x % b), key=abs))
What I made is a combination of what I have seen here and in similar questions on this site. I made this is Visual Studio 2013. I have not tested it with other compilers.
First of all I define a set of macros that will do the tricks.
// concatenation macros
#define CONCAT_(A, B) A ## B
#define CONCAT(A, B) CONCAT_(A, B)
// generic expansion and stringification macros
#define EXPAND(X) X
#define STRINGIFY(ARG) #ARG
#define EXPANDSTRING(ARG) STRINGIFY(ARG)
// number of arguments macros
#define NUM_ARGS_(X100, X99, X98, X97, X96, X95, X94, X93, X92, X91, X90, X89, X88, X87, X86, X85, X84, X83, X82, X81, X80, X79, X78, X77, X76, X75, X74, X73, X72, X71, X70, X69, X68, X67, X66, X65, X64, X63, X62, X61, X60, X59, X58, X57, X56, X55, X54, X53, X52, X51, X50, X49, X48, X47, X46, X45, X44, X43, X42, X41, X40, X39, X38, X37, X36, X35, X34, X33, X32, X31, X30, X29, X28, X27, X26, X25, X24, X23, X22, X21, X20, X19, X18, X17, X16, X15, X14, X13, X12, X11, X10, X9, X8, X7, X6, X5, X4, X3, X2, X1, N, ...) N
#define NUM_ARGS(...) EXPAND(NUM_ARGS_(__VA_ARGS__, 100, 99, 98, 97, 96, 95, 94, 93, 92, 91, 90, 89, 88, 87, 86, 85, 84, 83, 82, 81, 80, 79, 78, 77, 76, 75, 74, 73, 72, 71, 70, 69, 68, 67, 66, 65, 64, 63, 62, 61, 60, 59, 58, 57, 56, 55, 54, 53, 52, 51, 50, 49, 48, 47, 46, 45, 44, 43, 42, 41, 40, 39, 38, 37, 36, 35, 34, 33, 32, 31, 30, 29, 28, 27, 26, 25, 24, 23, 22, 21, 20, 19, 18, 17, 16, 15, 14, 13, 12, 11, 10, 9, 8, 7, 6, 5, 4, 3, 2, 1))
// argument extraction macros
#define FIRST_ARG(ARG, ...) ARG
#define REST_ARGS(ARG, ...) __VA_ARGS__
// arguments to strings macros
#define ARGS_STR__(N, ...) ARGS_STR_##N(__VA_ARGS__)
#define ARGS_STR_(N, ...) ARGS_STR__(N, __VA_ARGS__)
#define ARGS_STR(...) ARGS_STR_(NUM_ARGS(__VA_ARGS__), __VA_ARGS__)
#define ARGS_STR_1(ARG) EXPANDSTRING(ARG)
#define ARGS_STR_2(...) EXPANDSTRING(FIRST_ARG(__VA_ARGS__)), ARGS_STR_1(EXPAND(REST_ARGS(__VA_ARGS__)))
#define ARGS_STR_3(...) EXPANDSTRING(FIRST_ARG(__VA_ARGS__)), ARGS_STR_2(EXPAND(REST_ARGS(__VA_ARGS__)))
#define ARGS_STR_4(...) EXPANDSTRING(FIRST_ARG(__VA_ARGS__)), ARGS_STR_3(EXPAND(REST_ARGS(__VA_ARGS__)))
#define ARGS_STR_5(...) EXPANDSTRING(FIRST_ARG(__VA_ARGS__)), ARGS_STR_4(EXPAND(REST_ARGS(__VA_ARGS__)))
#define ARGS_STR_6(...) EXPANDSTRING(FIRST_ARG(__VA_ARGS__)), ARGS_STR_5(EXPAND(REST_ARGS(__VA_ARGS__)))
#define ARGS_STR_7(...) EXPANDSTRING(FIRST_ARG(__VA_ARGS__)), ARGS_STR_6(EXPAND(REST_ARGS(__VA_ARGS__)))
#define ARGS_STR_8(...) EXPANDSTRING(FIRST_ARG(__VA_ARGS__)), ARGS_STR_7(EXPAND(REST_ARGS(__VA_ARGS__)))
#define ARGS_STR_9(...) EXPANDSTRING(FIRST_ARG(__VA_ARGS__)), ARGS_STR_8(EXPAND(REST_ARGS(__VA_ARGS__)))
#define ARGS_STR_10(...) EXPANDSTRING(FIRST_ARG(__VA_ARGS__)), ARGS_STR_9(EXPAND(REST_ARGS(__VA_ARGS__)))
#define ARGS_STR_11(...) EXPANDSTRING(FIRST_ARG(__VA_ARGS__)), ARGS_STR_10(EXPAND(REST_ARGS(__VA_ARGS__)))
#define ARGS_STR_12(...) EXPANDSTRING(FIRST_ARG(__VA_ARGS__)), ARGS_STR_11(EXPAND(REST_ARGS(__VA_ARGS__)))
#define ARGS_STR_13(...) EXPANDSTRING(FIRST_ARG(__VA_ARGS__)), ARGS_STR_12(EXPAND(REST_ARGS(__VA_ARGS__)))
#define ARGS_STR_14(...) EXPANDSTRING(FIRST_ARG(__VA_ARGS__)), ARGS_STR_13(EXPAND(REST_ARGS(__VA_ARGS__)))
#define ARGS_STR_15(...) EXPANDSTRING(FIRST_ARG(__VA_ARGS__)), ARGS_STR_14(EXPAND(REST_ARGS(__VA_ARGS__)))
#define ARGS_STR_16(...) EXPANDSTRING(FIRST_ARG(__VA_ARGS__)), ARGS_STR_15(EXPAND(REST_ARGS(__VA_ARGS__)))
#define ARGS_STR_17(...) EXPANDSTRING(FIRST_ARG(__VA_ARGS__)), ARGS_STR_16(EXPAND(REST_ARGS(__VA_ARGS__)))
#define ARGS_STR_18(...) EXPANDSTRING(FIRST_ARG(__VA_ARGS__)), ARGS_STR_17(EXPAND(REST_ARGS(__VA_ARGS__)))
#define ARGS_STR_19(...) EXPANDSTRING(FIRST_ARG(__VA_ARGS__)), ARGS_STR_18(EXPAND(REST_ARGS(__VA_ARGS__)))
#define ARGS_STR_20(...) EXPANDSTRING(FIRST_ARG(__VA_ARGS__)), ARGS_STR_19(EXPAND(REST_ARGS(__VA_ARGS__)))
// expand until _100 or as much as you need
Next define a single macro that will create the enum class and the functions to get the strings.
#define ENUM(NAME, ...) \
enum class NAME \
{ \
__VA_ARGS__ \
}; \
\
static const std::array<std::string, NUM_ARGS(__VA_ARGS__)> CONCAT(NAME, Strings) = { ARGS_STR(__VA_ARGS__) }; \
\
inline const std::string& ToString(NAME value) \
{ \
return CONCAT(NAME, Strings)[static_cast<std::underlying_type<NAME>::type>(value)]; \
} \
\
inline std::ostream& operator<<(std::ostream& os, NAME value) \
{ \
os << ToString(value); \
return os; \
}
Now defining an enum type and have strings for it becomes really easy. All you need to do is:
ENUM(MyEnumType, A, B, C);
The following lines can be used to test it.
int main()
{
std::cout << MyEnumTypeStrings.size() << std::endl;
std::cout << ToString(MyEnumType::A) << std::endl;
std::cout << ToString(MyEnumType::B) << std::endl;
std::cout << ToString(MyEnumType::C) << std::endl;
std::cout << MyEnumType::A << std::endl;
std::cout << MyEnumType::B << std::endl;
std::cout << MyEnumType::C << std::endl;
auto myVar = MyEnumType::A;
std::cout << myVar << std::endl;
myVar = MyEnumType::B;
std::cout << myVar << std::endl;
myVar = MyEnumType::C;
std::cout << myVar << std::endl;
return 0;
}
This will output:
3
A
B
C
A
B
C
A
B
C
I believe it is very clean and easy to use. There are some limitations:
If you can work around this. I think, especially how to use it, this is nice and lean. Advantages:
In C#, they are interchangeable (although method is the proper term) because you cannot write a method without incorporating it into a class. If it were independent of a class, then it would be a function. Methods are functions that operate through a designated class.
Server:
namespace SocketServer
{
class Program
{
static Socket klient;
static void Main(string[] args)
{
Socket server = new Socket(AddressFamily.InterNetwork, SocketType.Stream, ProtocolType.Tcp);
IPEndPoint endPoint = new IPEndPoint(IPAddress.Any, 8888);
server.Bind(endPoint);
server.Listen(20);
while(true)
{
Console.WriteLine("Waiting...");
klient = server.Accept();
Console.WriteLine("Client connected");
Task t = new Task(ServisClient);
t.Start();
}
}
static void ServisClient()
{
try
{
while (true)
{
byte[] buffer = new byte[64];
Console.WriteLine("Waiting for answer...");
klient.Receive(buffer, 0, buffer.Length, 0);
string message = Encoding.UTF8.GetString(buffer);
Console.WriteLine("Answer: " + message);
string answer = "Actualy date is " + DateTime.Now;
buffer = Encoding.UTF8.GetBytes(answer);
Console.WriteLine("Sending {0}", answer);
klient.Send(buffer);
}
}
catch
{
Console.WriteLine("Disconnected");
}
}
}
}
A cute piece of numerical weirdness may be observed if one converts 9999999.4999999999 to a float
and back to a double
. The result is reported as 10000000, even though that value is obviously closer to 9999999, and even though 9999999.499999999 correctly rounds to 9999999.
because you didn't start mongod process before you try starting mongo shell.
Start mongod server
mongod
Open another terminal window
Start mongo shell
mongo
RSA
RSA encryption and decryption are commutative
hence it may be used directly as a digital signature scheme
given an RSA scheme {(e,R), (d,p,q)}
to sign a message M, compute:
S = M power d (mod R)
to verify a signature, compute:
M = S power e(mod R) = M power e.d(mod R) = M(mod R)
RSA can be used both for encryption and digital signatures,
simply by reversing the order in which the exponents are used:
the secret exponent (d) to create the signature, the public exponent (e)
for anyone to verify the signature. Everything else is identical.
DSA (Digital Signature Algorithm)
DSA is a variant on the ElGamal and Schnorr algorithms.
It creates a 320 bit signature, but with 512-1024 bit security
again rests on difficulty of computing discrete logarithms
has been quite widely accepted.
DSA Key Generation
firstly shared global public key values (p,q,g) are chosen:
choose a large prime p = 2 power L
where L= 512 to 1024 bits and is a multiple of 64
choose q, a 160 bit prime factor of p-1
choose g = h power (p-1)/q
for any h<p-1, h(p-1)/q(mod p)>1
then each user chooses a private key and computes their public key:
choose x<q
compute y = g power x(mod p)
DSA key generation is related to, but somewhat more complex than El Gamal.
Mostly because of the use of the secondary 160-bit modulus q used to help
speed up calculations and reduce the size of the resulting signature.
DSA Signature Creation and Verification
to sign a message M
generate random signature key k, k<q
compute
r = (g power k(mod p))(mod q)
s = k-1.SHA(M)+ x.r (mod q)
send signature (r,s) with message
to verify a signature, compute:
w = s-1(mod q)
u1= (SHA(M).w)(mod q)
u2= r.w(mod q)
v = (g power u1.y power u2(mod p))(mod q)
if v=r then the signature is verified
Signature creation is again similar to ElGamal with the use of a
per message temporary signature key k, but doing calc first mod p,
then mod q to reduce the size of the result. Note that the use of
the hash function SHA is explicit here. Verification also consists of
comparing two computations, again being a bit more complex than,
but related to El Gamal.
Note that nearly all the calculations are mod q, and
hence are much faster.
But, In contrast to RSA, DSA can be used only for digital signatures
DSA Security
The presence of a subliminal channel exists in many schemes (any that need a random number to be chosen), not just DSA. It emphasises the need for "system security", not just a good algorithm.
A thread is something like some branch. Multi-branched means when there are at least two branches. If the branches are reduced, then the minimum remains one. This one is although like the branches removed, but in general we do not consider it branch.
Similarly when there are at least two threads we call it multi-threaded program. If the threads are reduced, the minimum remains one. Hello program is a single threaded program, but no one needs to know multi-threading to write or run it.
In simple words when a program is not said to be having threads, it means that the program is not a multi-threaded program, more over in true sense it is a single threaded program, in which YOU CAN put your code as if it is multi-threaded.
Below a useless code is given, but it will suffice to do away with your some confusions about Runnable
. It will print "Hello World".
class NamedRunnable implements Runnable {
public void run() { // The run method prints a message to standard output.
System.out.println("Hello World");
}
public static void main(String[]arg){
NamedRunnable namedRunnable = new NamedRunnable( );
namedRunnable.run();
}
}
Also to find the position of the element "which" can be used as
pop <- c(3,4,5,7,13)
which(pop==13)
and to find the elements which are not contained in the target vector, one may do this:
pop <- c(1,2,4,6,10)
Tset <- c(2,10,7) # Target set
pop[which(!(pop%in%Tset))]
I know it's mighty late to post this but here's a tiny hack to achieve your outcome ;)
Simply add a dummy view below your viewpager:
<android.support.v4.view.ViewPager
android:layout_width="match_parent"
android:layout_height="match_parent">
</android.support.v4.view.ViewPager>
<RelativeLayout
android:id="@+id/dummyView"
android:layout_width="match_parent"
android:layout_height="match_parent">
</RelativeLayout>
Then add a OnClickListener
to your RelativeLayout
.
dummyView = (RelativeLayout) findViewById(R.id.dummyView);
dummyView.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View view) {
//Just leave this empty
}
});
Get a bit creative with layouts, their placements and their behaviour and you'll learn to find a way to do absolutely anything that you imagine :)
Good luck!
I rewrote David's answer using the with
statement, it allows you do do this:
with timeout(seconds=3):
time.sleep(4)
Which will raise a TimeoutError.
The code is still using signal
and thus UNIX only:
import signal
class timeout:
def __init__(self, seconds=1, error_message='Timeout'):
self.seconds = seconds
self.error_message = error_message
def handle_timeout(self, signum, frame):
raise TimeoutError(self.error_message)
def __enter__(self):
signal.signal(signal.SIGALRM, self.handle_timeout)
signal.alarm(self.seconds)
def __exit__(self, type, value, traceback):
signal.alarm(0)
Use the Maven debug option, ie mvn -X
:
Apache Maven 3.0.3 (r1075438; 2011-02-28 18:31:09+0100)
Maven home: /usr/java/apache-maven-3.0.3
Java version: 1.6.0_12, vendor: Sun Microsystems Inc.
Java home: /usr/java/jdk1.6.0_12/jre
Default locale: en_US, platform encoding: UTF-8
OS name: "linux", version: "2.6.32-32-generic", arch: "i386", family: "unix"
[INFO] Error stacktraces are turned on.
[DEBUG] Reading global settings from /usr/java/apache-maven-3.0.3/conf/settings.xml
[DEBUG] Reading user settings from /home/myhome/.m2/settings.xml
...
In this output, you can see that the settings.xml is loaded from /home/myhome/.m2/settings.xml
.
You can use the cd
builtin, or the pushd
and popd
builtins for this purpose. For example:
# do something with /etc as the working directory
cd /etc
:
# do something with /tmp as the working directory
cd /tmp
:
You use the builtins just like any other command, and can change directory context as many times as you like in a script.
In the "project" page on the top left corner in android studio.
From dropdown goto Android >> Gradle Scripts >> Build Gradle(Module :app)
make sure the first line of this file is like this.
apply plugin: 'com.android.application'
not like this
apply plugin: 'com.android.library'
If you want to achieve sorting where "ä" comes after "a" and is not treated as the same, then you can use a function like mine.
You can always change the alphabet to get different or even weird sortings. However, if you want some letters to be equivalent, then you have to manipulate the strings like a = a.replace(/ä/, 'a')
or similar, as many have already replied above. I've included the uppercase letters if someone wants to have all uppercase words before all lowercase words (then you have to ommit .toLowerCase()
).
function sortbyalphabet(a,b) {
alphabet = "0123456789AaÀàÁáÂâÃãÄäBbCcÇçDdÈèÉéÊêËëFfGgHhÌìÍíÎîÏïJjKkLlMmNnÑñOoÒòÓóÔôÕõÖöPpQqRrSsTtÙùÚúÛûÜüVvWwXxÝýŸÿZz";
a = a.toLowerCase();
b = b.toLowerCase();
shorterone = (a.length > b.length ? a : b);
for (i=0; i<shorterone.length; i++){
diff = alphabet.indexOf(a.charAt(i)) - alphabet.indexOf(b.charAt(i));
if (diff!=0){
return diff;
}
}
// sort the shorter first
return a.length - b.length;
}
var n = ["ast", "Äste", "apfel", "äpfel", "à"];
console.log(n.sort(sortbyalphabet));
// should return ["apfel", "ast", "à", "äpfel", "äste"]
You could go into the designer of the web form and change the "webcontrols" to be "public" instead of "protected" but I'm not sure how safe that is. I prefer to make hidden inputs and have some jQuery set the values into those hidden inputs, then create public properties in the web form's class (code behind), and access the values that way.
funny, that in the most answer you create a box with the text (or object), instead of it create the text (or object) div and under that a box with 100% width (or at least what it should) and with height what equal with your "border" px... So, i think this is the most simple and perfect answer:
<h3>Your Text</h3><div class="border-shadow"></div>
and the css:
.shadow {
width:100%;
height:1px; // = "border height (without the shadow)!"
background:#000; // = "border color!"
-webkit-box-shadow: 0px 1px 8px 1px rgba(0,0,0,1); // rbg = "border shadow color!"
-moz-box-shadow: 0px 1px 8px 1px rgba(0,0,0,1); // rbg = "border shadow color!"
box-shadow: 0px 1px 8px 1px rgba(0,0,0,1); // rbg = "border shadow color!"
}
Here you can experiment with the radius, etc. easy: https://www.cssmatic.com/box-shadow
HotelsCombined has an easy-to-access and useful service to download the data feed files with hotels. Not exactly API, but something you can get, parse and use. Here is how you do it:
If you are interested in details, you may find the sample Python code to filter CSV file to get hotels for a specific city here:
http://mikhail.io/2012/05/17/api-to-get-the-list-of-hotels/
Update:
Unfortunately, HotelsCombined.com has introduced the new regulations: they've restricted the access to data feeds by default. To get the access, a partner must submit some information on why one needs the data. The HC team will review it and then (maybe) will grant access.
_.each(['Hello', 'World!'], function(word){_x000D_
console.log(word);_x000D_
});
_x000D_
<script src="https://cdnjs.cloudflare.com/ajax/libs/underscore.js/1.8.3/underscore-min.js"></script>
_x000D_
Here's simple example that could use _.each
:
function basket() {_x000D_
this.items = [];_x000D_
this.addItem = function(item) {_x000D_
this.items.push(item);_x000D_
};_x000D_
this.show = function() {_x000D_
console.log('items: ', this.items);_x000D_
}_x000D_
}_x000D_
_x000D_
var x = new basket();_x000D_
x.addItem('banana');_x000D_
x.addItem('apple');_x000D_
x.addItem('kiwi');_x000D_
x.show();
_x000D_
Output:
items: [ 'banana', 'apple', 'kiwi' ]
Instead of calling addItem
multiple times you could use underscore this way:
_.each(['banana', 'apple', 'kiwi'], function(item) { x.addItem(item); });
which is identical to calling addItem
three times sequentially with these items. Basically it iterates your array and for each item calls your anonymous callback function that calls x.addItem(item)
. The anonymous callback function is similar to addItem
member function (e.g. it takes an item) and is kind of pointless. So, instead of going through anonymous function it's better that _.each
avoids this indirection and calls addItem
directly:
_.each(['banana', 'apple', 'kiwi'], x.addItem);
but this won't work, as inside basket's addItem
member function this
won't refer to your x
basket that you created. That's why you have an option to pass your basket x
to be used as [context]
:
_.each(['banana', 'apple', 'kiwi'], x.addItem, x);
function basket() {_x000D_
this.items = [];_x000D_
this.addItem = function(item) {_x000D_
this.items.push(item);_x000D_
};_x000D_
this.show = function() {_x000D_
console.log('items: ', this.items);_x000D_
}_x000D_
}_x000D_
var x = new basket();_x000D_
_.each(['banana', 'apple', 'kiwi'], x.addItem, x);_x000D_
x.show();
_x000D_
<script src="https://cdnjs.cloudflare.com/ajax/libs/underscore.js/1.8.3/underscore-min.js"></script>
_x000D_
In short, if callback function that you pass to _.each
in any way uses this
then you need to specify what this
should be referring to inside your callback function. It may seem like x
is redundant in my example, but x.addItem
is just a function and could be totally unrelated to x
or basket
or any other object, for example:
function basket() {_x000D_
this.items = [];_x000D_
this.show = function() {_x000D_
console.log('items: ', this.items);_x000D_
}_x000D_
}_x000D_
function addItem(item) {_x000D_
this.items.push(item);_x000D_
};_x000D_
_x000D_
var x = new basket();_x000D_
_.each(['banana', 'apple', 'kiwi'], addItem, x);_x000D_
x.show();
_x000D_
<script src="https://cdnjs.cloudflare.com/ajax/libs/underscore.js/1.8.3/underscore-min.js"></script>
_x000D_
In other words, you bind some value to this
inside your callback, or you may as well use bind directly like this:
_.each(['banana', 'apple', 'kiwi'], addItem.bind(x));
how this feature can be useful with some different underscore methods?
In general, if some underscorejs
method takes a callback function and if you want that callback be called on some member function of some object (e.g. a function that uses this
) then you may bind that function to some object or pass that object as the [context]
parameter and that's the primary intention. And at the top of underscorejs documentation, that's exactly what they state: The iteratee is bound to the context object, if one is passed
I think you just need to make
<meta http-equiv="Content-Type" content="text/html;charset=UTF-8">
Before calling your .js files or code
You can do it in code by calling the following functions.
error_reporting(E_ERROR | E_WARNING | E_PARSE | E_NOTICE);
or
error_reporting(E_ALL ^ E_DEPRECATED);
See, why this way that you are doing is not working. First, you are trying to get integer from a Row Type, the output of your collect is like this:
>>> mvv_list = mvv_count_df.select('mvv').collect()
>>> mvv_list[0]
Out: Row(mvv=1)
If you take something like this:
>>> firstvalue = mvv_list[0].mvv
Out: 1
You will get the mvv
value. If you want all the information of the array you can take something like this:
>>> mvv_array = [int(row.mvv) for row in mvv_list.collect()]
>>> mvv_array
Out: [1,2,3,4]
But if you try the same for the other column, you get:
>>> mvv_count = [int(row.count) for row in mvv_list.collect()]
Out: TypeError: int() argument must be a string or a number, not 'builtin_function_or_method'
This happens because count
is a built-in method. And the column has the same name as count
. A workaround to do this is change the column name of count
to _count
:
>>> mvv_list = mvv_list.selectExpr("mvv as mvv", "count as _count")
>>> mvv_count = [int(row._count) for row in mvv_list.collect()]
But this workaround is not needed, as you can access the column using the dictionary syntax:
>>> mvv_array = [int(row['mvv']) for row in mvv_list.collect()]
>>> mvv_count = [int(row['count']) for row in mvv_list.collect()]
And it will finally work!
I was getting following error on a fedora 18 box:
1. /usr/include/gnu/stubs.h:7:27: fatal error: gnu/stubs-32.h: No such file or directory compilation terminated.
I Installed glibc.i686 and glibc-devel.i686, then compilation failed with following error:
2. /usr/bin/ld: skipping incompatible /usr/lib/gcc/x86_64-redhat-linux/4.7.2/libgcc_s.so when searching for -lgcc_s /usr/bin/ld: cannot find -lgcc_s collect2: error: ld returned 1 exit status
Solution:
I installed (yum install) glibc.i686 glibc-devel.i386 and libgcc.i686 to get rid of the compilation issue.
Now compilation for 32 bit (-m32) works fine.
You can use Path.GetFileNameWithoutExtension
:
foreach (FileInfo fi in smFiles)
{
builder.Append(Path.GetFileNameWithoutExtension(fi.Name));
builder.Append(", ");
}
Although I am surprised there isn't a way to get this directly from the FileInfo
(or at least I can't see it).
I had come across this issue for a complex model with several nested objects. A good example of what I was looking at doing would be this: Lets say you have a polaroid of yourself. And that picture is then put into a trunk of a car. The car is inside of a large crate. The crate is in the hold of a large ship with many other crates. I had to search the hold, look in the crates, check the trunk, and then look for an existing picture of me.
I could not find any good solutions online to use, and using .filter()
only works on arrays. Most solutions suggested just checking to see if model["yourpicture"]
existed. This was very undesirable because, from the example, that would only search the hold of the ship and I needed a way to get them from farther down the rabbit hole.
This is the recursive solution I made. In comments, I confirmed from T.J. Crowder that a recursive version would be required. I thought I would share it in case anyone came across a similar complex situation.
function ContainsKeyValue( obj, key, value ){
if( obj[key] === value ) return true;
for( all in obj )
{
if( obj[all] != null && obj[all][key] === value ){
return true;
}
if( typeof obj[all] == "object" && obj[all]!= null ){
var found = ContainsKeyValue( obj[all], key, value );
if( found == true ) return true;
}
}
return false;
}
This will start from a given object inside of the graph, and recurse down any objects found. I use it like this:
var liveData = [];
for( var items in viewmodel.Crates )
{
if( ContainsKeyValue( viewmodel.Crates[items], "PictureId", 6 ) === true )
{
liveData.push( viewmodel.Crates[items] );
}
}
Which will produce an array of the Crates which contained my picture.
The idea of only returning at the end of a function came back from the days before languages had support for exceptions. It enabled programs to rely on being able to put clean-up code at the end of a method, and then being sure it would be called and some other programmer wouldn't hide a return in the method that caused the cleanup code to be skipped. Skipped cleanup code could result in a memory or resource leak.
However, in a language that supports exceptions, it provides no such guarantees. In a language that supports exceptions, the execution of any statement or expression can cause a control flow that causes the method to end. This means clean-up must be done through using the finally or using keywords.
Anyway, I'm saying I think a lot of people quote the 'only return at the end of a method' guideline without understanding why it was ever a good thing to do, and that reducing nesting to improve readability is probably a better aim.
when you save the #ID as the cookie to recognize logged in users, you actually are showing data to users that is not related to them. In addition, if a third party tries to set random IDs as cookie data in their browser, they will be able to convince the server that they are a user while they actually are not. That's a lack of security.
You have used cookies, and as you said you have already completed most of the project. besides cookie has the privilege of remaining for a long time, while sessions end more quickly. So sessions are not suitable in this case. In reality many famous and popular websites and services use cookie and you can stay logged-in for a long time. But how can you use their method to create a safer log-in process?
here's the idea: you can help the way you use cookies: If you use random keys instead of IDs to recognize logged-in users, first, you don't leak your primary data to random users, and second, If you consider the Random key large enough, It will be harder for anyone to guess a key or create a random one. for example you can save a 40 length key like this in User's browser: "KUYTYRFU7987gJHFJ543JHBJHCF5645UYTUYJH54657jguthfn" and it will be less likely for anyone to create the exact key and pretend to be someone else.
No you are not using it correctly.
See here for details.
DateTime t1 = new DateTime(100);
DateTime t2 = new DateTime(20);
if (DateTime.Compare(t1, t2) > 0) Console.WriteLine("t1 > t2");
if (DateTime.Compare(t1, t2) == 0) Console.WriteLine("t1 == t2");
if (DateTime.Compare(t1, t2) < 0) Console.WriteLine("t1 < t2");
You can use concat:
In [11]: pd.concat([df1['c'], df2['c']], axis=1, keys=['df1', 'df2'])
Out[11]:
df1 df2
2014-01-01 NaN -0.978535
2014-01-02 -0.106510 -0.519239
2014-01-03 -0.846100 -0.313153
2014-01-04 -0.014253 -1.040702
2014-01-05 0.315156 -0.329967
2014-01-06 -0.510577 -0.940901
2014-01-07 NaN -0.024608
2014-01-08 NaN -1.791899
[8 rows x 2 columns]
The axis argument determines the way the DataFrames are stacked:
df1 = pd.DataFrame([1, 2, 3])
df2 = pd.DataFrame(['a', 'b', 'c'])
pd.concat([df1, df2], axis=0)
0
0 1
1 2
2 3
0 a
1 b
2 c
pd.concat([df1, df2], axis=1)
0 0
0 1 a
1 2 b
2 3 c
The reason Herb said what he said is because of cases like this.
Let's say I have function A
which calls function B
, which calls function C
. And A
passes a string through B
and into C
. A
does not know or care about C
; all A
knows about is B
. That is, C
is an implementation detail of B
.
Let's say that A is defined as follows:
void A()
{
B("value");
}
If B and C take the string by const&
, then it looks something like this:
void B(const std::string &str)
{
C(str);
}
void C(const std::string &str)
{
//Do something with `str`. Does not store it.
}
All well and good. You're just passing pointers around, no copying, no moving, everyone's happy. C
takes a const&
because it doesn't store the string. It simply uses it.
Now, I want to make one simple change: C
needs to store the string somewhere.
void C(const std::string &str)
{
//Do something with `str`.
m_str = str;
}
Hello, copy constructor and potential memory allocation (ignore the Short String Optimization (SSO)). C++11's move semantics are supposed to make it possible to remove needless copy-constructing, right? And A
passes a temporary; there's no reason why C
should have to copy the data. It should just abscond with what was given to it.
Except it can't. Because it takes a const&
.
If I change C
to take its parameter by value, that just causes B
to do the copy into that parameter; I gain nothing.
So if I had just passed str
by value through all of the functions, relying on std::move
to shuffle the data around, we wouldn't have this problem. If someone wants to hold on to it, they can. If they don't, oh well.
Is it more expensive? Yes; moving into a value is more expensive than using references. Is it less expensive than the copy? Not for small strings with SSO. Is it worth doing?
It depends on your use case. How much do you hate memory allocations?
Hm.
You have to specify window you clicked in Mouse.GetPosition(IInputElement relativeTo)
Following code works well for me
protected override void OnMouseDown(MouseButtonEventArgs e)
{
base.OnMouseDown(e);
Point p = e.GetPosition(this);
}
I suspect that you need to refer to the window not from it own class but from other point of the application. In this case Application.Current.MainWindow
will help you.
You can do this:
IEnumerable<object> list = new List<object>(){1, 4, 5}.AsEnumerable();
CallFunction(list);
You can use the below code to generate a random number that will always be 6 digits:
Math.random().toString().substr(2, 6)
Hope this works for everyone :)
Briefly how this works is Math.random()
generates a random number between 0 and 1 which we convert to a string and using .toString()
and take a 6 digit sample from said string using .substr()
with the parameters 2, 6
to start the sample from the 2nd char and continue it for 6 characters.
This can be used for any length number.
If you want to do more reading on this here are some links to the docs to save you some googling:
Math.random()
: https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Math/random
.toString()
: https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Object/toString
.substr()
: https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/String/substr
On Linux/unix/MacOSX use core files (you can enable them with ulimit or compatible system call). On Windows use Microsoft error reporting (you can become a partner and get access to your application crash data).
What type of sql database are using (MSSQL, Oracle etc)? I believe what you have written is correct.
You could also write the first query like this:
SELECT s.sid, s.name
FROM Supplier s
WHERE (SELECT COUNT(DISTINCT pr.jid)
FROM Supplies su, Projects pr
WHERE su.sid = s.sid
AND pr.jid = su.jid) >= 2
It's a little more readable, and less mind-bending than trying to do it with GROUP BY. Performance may differ though.
I figured it out! The steps make it look like it will take more effort than it actually does.
These instructions are for creating a project from scratch. If you have existing Python scripts that you wish to include in this project, you will obviously need to slightly deviate from these instructions.
If you find that these instructions no longer work or are unclear due to changes in Xcode updates, please let me know. I will make the necessary corrections.
Note that if you open the "Utilities" panel, with the "Show the File inspector" tab active, the file type is automatically set to "Default - Python script". Feel free to look through all the file type options it has, to gain an idea as to what all it is capable of doing. The method above can be applied to any interpreted language. As of right now, I have yet to figure out exactly how to get it to work with Java; then again, I haven't done too much research. Surely there is some documentation floating around on the web about all of this.
If you do not have administrative privileges or are not in the Developer group, you can still use Xcode for Python programming (but you still won't be able to develop in languages that require compiling). Instead of using the play button, in the menu bar, click "Product" ? "Perform Action" ? "Run Without Building" or simply use the keyboard shortcut ^?R.
To change the text encoding, line endings, and/or indentation settings, open the "Utilities" panel and click "Show the File inspector" tab active. There, you will find these settings.
For more information about Xcode's build settings, there is no better source than this. I'd be interested in hearing from somebody who got this to work with unsupported compiled languages. This process should work for any other interpreted language. Just be sure to change Step 5 and Step 16 accordingly.
I didn't think it would be that simple! go to this link: https://www.codeproject.com/Articles/18399/Localizing-System-MessageBox
Download the source. Take the MessageBoxManager.cs file, add it to your project. Now just register it once in your code (for example in the Main() method inside your Program.cs file) and it will work every time you call MessageBox.Show():
MessageBoxManager.OK = "Alright";
MessageBoxManager.Yes = "Yep!";
MessageBoxManager.No = "Nope";
MessageBoxManager.Register();
See this answer for the source code here for MessageBoxManager.cs.
The list selector drawable is a StateListDrawable
— it contains reference to multiple drawables for each state the list can be, like selected, focused, pressed, disabled...
While you can retrieve the drawable using getSelector()
, I don't believe you can retrieve a specific Drawable
from a StateListDrawable
, nor does it seem possible to programmatically retrieve the colour directly from a ColorDrawable
anyway.
As for setting the colour, you need a StateListDrawable
as described above. You can set this on your list using the android:listSelector
attribute, defining the drawable in XML like this:
<?xml version="1.0" encoding="utf-8"?>
<selector xmlns:android="http://schemas.android.com/apk/res/android">
<item android:state_enabled="false" android:state_focused="true"
android:drawable="@drawable/item_disabled" />
<item android:state_pressed="true"
android:drawable="@drawable/item_pressed" />
<item android:state_focused="true"
android:drawable="@drawable/item_focused" />
</selector>
Try this query
select
*,
Days = datediff(dd,0,DateDif),
Hours = datepart(hour,DateDif),
Minutes = datepart(minute,DateDif),
Seconds = datepart(second,DateDif),
MS = datepart(ms,DateDif)
from
(select
DateDif = EndDate-StartDate,
aa.*
from
( -- Test Data
Select
StartDate = convert(datetime,'20090213 02:44:37.923'),
EndDate = convert(datetime,'20090715 13:24:45.837')) aa
) a
Output
DateDif StartDate EndDate Days Hours Minutes Seconds MS
----------------------- ----------------------- ----------------------- ---- ----- ------- ------- ---
1900-06-02 10:40:07.913 2009-02-13 02:44:37.923 2009-07-15 13:24:45.837 152 10 40 7 913
(1 row(s) affected)
I created an AngularJS module to handle this issue regarding phonenumbers for myself with a custom directive and accompanying filter.
jsfiddle example: http://jsfiddle.net/aberke/s0xpkgmq/
Filter use example:
<p>{{ phonenumberValue | phonenumber }}</p>
Filter code:
.filter('phonenumber', function() {
/*
Format phonenumber as: c (xxx) xxx-xxxx
or as close as possible if phonenumber length is not 10
if c is not '1' (country code not USA), does not use country code
*/
return function (number) {
/*
@param {Number | String} number - Number that will be formatted as telephone number
Returns formatted number: (###) ###-####
if number.length < 4: ###
else if number.length < 7: (###) ###
Does not handle country codes that are not '1' (USA)
*/
if (!number) { return ''; }
number = String(number);
// Will return formattedNumber.
// If phonenumber isn't longer than an area code, just show number
var formattedNumber = number;
// if the first character is '1', strip it out and add it back
var c = (number[0] == '1') ? '1 ' : '';
number = number[0] == '1' ? number.slice(1) : number;
// # (###) ###-#### as c (area) front-end
var area = number.substring(0,3);
var front = number.substring(3, 6);
var end = number.substring(6, 10);
if (front) {
formattedNumber = (c + "(" + area + ") " + front);
}
if (end) {
formattedNumber += ("-" + end);
}
return formattedNumber;
};
});
Directive use example:
<phonenumber-directive placeholder="'Input phonenumber here'" model='myModel.phonenumber'></phonenumber-directive>
Directive code:
.directive('phonenumberDirective', ['$filter', function($filter) {
/*
Intended use:
<phonenumber-directive placeholder='prompt' model='someModel.phonenumber'></phonenumber-directive>
Where:
someModel.phonenumber: {String} value which to bind only the numeric characters [0-9] entered
ie, if user enters 617-2223333, value of 6172223333 will be bound to model
prompt: {String} text to keep in placeholder when no numeric input entered
*/
function link(scope, element, attributes) {
// scope.inputValue is the value of input element used in template
scope.inputValue = scope.phonenumberModel;
scope.$watch('inputValue', function(value, oldValue) {
value = String(value);
var number = value.replace(/[^0-9]+/g, '');
scope.phonenumberModel = number;
scope.inputValue = $filter('phonenumber')(number);
});
}
return {
link: link,
restrict: 'E',
scope: {
phonenumberPlaceholder: '=placeholder',
phonenumberModel: '=model',
},
// templateUrl: '/static/phonenumberModule/template.html',
template: '<input ng-model="inputValue" type="tel" class="phonenumber" placeholder="{{phonenumberPlaceholder}}" title="Phonenumber (Format: (999) 9999-9999)">',
};
}])
Full code with module and how to use it: https://gist.github.com/aberke/042eef0f37dba1138f9e
A slightly modified version of @sidanmor 's code. The main point is, not every webpage is purely ASCII, user should be able to handle the decoding manually (even encode into base64)
function httpGet(url) {
return new Promise((resolve, reject) => {
const http = require('http'),
https = require('https');
let client = http;
if (url.toString().indexOf("https") === 0) {
client = https;
}
client.get(url, (resp) => {
let chunks = [];
// A chunk of data has been recieved.
resp.on('data', (chunk) => {
chunks.push(chunk);
});
// The whole response has been received. Print out the result.
resp.on('end', () => {
resolve(Buffer.concat(chunks));
});
}).on("error", (err) => {
reject(err);
});
});
}
(async(url) => {
var buf = await httpGet(url);
console.log(buf.toString('utf-8'));
})('https://httpbin.org/headers');
Emoji support for application having tech stack - mysql, java, springboot, hibernate
Apply below changes in mysql for unicode support.
ALTER DATABASE <database-name> CHARACTER SET = utf8mb4 COLLATE = utf8mb4_unicode_ci;
ALTER TABLE <table-name> CONVERT TO CHARACTER SET utf8mb4 COLLATE utf8mb4_unicode_ci;
DB Connection - jdbc url change:
jdbc:mysql://localhost:3306/<database-name>?useUnicode=yes&characterEncoding=UTF-8
Note - If the above step is not working please update mysql-connector version to 8.0.15. (mysql 5.7 works with connector version 8.0.15 for unicode support)
Make a div and give it a class. Then drop a img in it.
<div class="mydiv">
<img src="location/of/your/image" ></img>
</div>
Set the size of your div and make it relative.
.mydiv {
position: relative;
height:300px;
width: 100%;
overflow: hidden;
}
then style your image
img {
width: 100%;
height: auto;
overflow: hidden;
}
Hope that helps
Have you tried to increase output_buffering in your php.ini?
FileZilla does not have any command line arguments (nor any other way) that allow an automatic transfer.
Some references:
Though you can use any other client that allows automation.
You have not specified, what protocol you are using. FTP or SFTP? You will definitely be able to use WinSCP, as it supports all protocols that FileZilla does (and more).
Combine WinSCP scripting capabilities with Windows Scheduler:
A typical WinSCP script for upload (with SFTP) looks like:
open sftp://user:[email protected]/ -hostkey="ssh-rsa 2048 xxxxxxxxxxx...="
put c:\mypdfs\*.pdf /home/user/
close
With FTP, just replace the sftp://
with the ftp://
and remove the -hostkey="..."
switch.
Similarly for download: How to schedule an automatic FTP download on Windows?
WinSCP can even generate a script from an imported FileZilla session.
For details, see the guide to FileZilla automation.
(I'm the author of WinSCP)
Another option, if you are using SFTP, is the psftp.exe
client from PuTTY suite.
val wifi = context!!.applicationContext.getSystemService(Context.WIFI_SERVICE) as WifiManager?
if (wifi!!.isWifiEnabled)
//do action here
else
//do action here
it's how I implemented it , the reason behind is if the class that you want to get the name from it's member is not static then you need to create an instanse of that and then get the member's name. so generic here comes to help
public static string GetName<TClass>(Expression<Func<TClass, object>> exp)
{
MemberExpression body = exp.Body as MemberExpression;
if (body == null)
{
UnaryExpression ubody = (UnaryExpression)exp.Body;
body = ubody.Operand as MemberExpression;
}
return body.Member.Name;
}
the usage is like this
var label = ClassExtension.GetName<SomeClass>(x => x.Label); //x is refering to 'SomeClass'
Easiest way for me ->
echo "Hello my name is Donald" | sed s/\ //g
This API gives you the current time and several formats in JSON - https://market.mashape.com/parsify/format#time. Here's a sample response:
{
"time": {
"daysInMonth": 31,
"millisecond": 283,
"second": 42,
"minute": 55,
"hour": 1,
"date": 6,
"day": 3,
"week": 10,
"month": 2,
"year": 2013,
"zone": "+0000"
},
"formatted": {
"weekday": "Wednesday",
"month": "March",
"ago": "a few seconds",
"calendar": "Today at 1:55 AM",
"generic": "2013-03-06T01:55:42+00:00",
"time": "1:55 AM",
"short": "03/06/2013",
"slim": "3/6/2013",
"hand": "Mar 6 2013",
"handTime": "Mar 6 2013 1:55 AM",
"longhand": "March 6 2013",
"longhandTime": "March 6 2013 1:55 AM",
"full": "Wednesday, March 6 2013 1:55 AM",
"fullSlim": "Wed, Mar 6 2013 1:55 AM"
},
"array": [
2013,
2,
6,
1,
55,
42,
283
],
"offset": 1362534942283,
"unix": 1362534942,
"utc": "2013-03-06T01:55:42.283Z",
"valid": true,
"integer": false,
"zone": 0
}
Swift 4 has a pretty short way of doing this:
Timer.scheduledTimer(withTimeInterval: 2, repeats: false) { (timer) in
// Your stuff here
print("hello")
}
In VueJS you can loop through an array like this : const array1 = ['a', 'b', 'c'];
Array.from(array1).forEach(element =>
console.log(element)
);
in my case I want to loop through files and add their types to another array:
Array.from(files).forEach((file) => {
if(this.mediaTypes.image.includes(file.type)) {
this.media.images.push(file)
console.log(this.media.images)
}
}
For anyone using lodash, it is extremely easy to debounce any function:
changed = _.debounce(function() {
console.log("name changed!");
}, 400);
then just throw something like this into your template:
<(input)="changed($event.target.value)" />
I believe it's in C:\Windows\System32\WindowsPowershell\v1.0\
. In order to confuse the innocent, MS kept it in a directory labeled "v1.0". Running this on Windows 7 and checking the version number via $Host.Version
(Determine installed PowerShell version) shows it's 2.0.
Another option is type $PSVersionTable
at the command prompt. If you are running v2.0, the output will be:
Name Value
---- -----
CLRVersion 2.0.50727.4927
BuildVersion 6.1.7600.16385
PSVersion 2.0
WSManStackVersion 2.0
PSCompatibleVersions {1.0, 2.0}
SerializationVersion 1.1.0.1
PSRemotingProtocolVersion 2.1
If you're running version 1.0, the variable doesn't exist and there will be no output.
Localization PowerShell version 1.0, 2.0, 3.0, 4.0:
Now that some time has passed since the original answer was accepted, there's a better approach:
String out = new Scanner(new URL("http://www.google.com").openStream(), "UTF-8").useDelimiter("\\A").next();
If you want a slightly fuller implementation, which is not a single line, do this:
public static String readStringFromURL(String requestURL) throws IOException
{
try (Scanner scanner = new Scanner(new URL(requestURL).openStream(),
StandardCharsets.UTF_8.toString()))
{
scanner.useDelimiter("\\A");
return scanner.hasNext() ? scanner.next() : "";
}
}
Here is a sample code that includes a legend if that is of interest.
# First create an empty plot.
plot(1, type = 'n', xlim = c(xminp, xmaxp), ylim = c(0, 1),
xlab = "log transformed coverage", ylab = "frequency")
# Create a list of 22 colors to use for the lines.
cl <- rainbow(22)
# Now fill plot with the log transformed coverage data from the
# files one by one.
for(i in 1:length(data)) {
lines(density(log(data[[i]]$coverage)), col = cl[i])
plotcol[i] <- cl[i]
}
legend("topright", legend = c(list.files()), col = plotcol, lwd = 1,
cex = 0.5)
It's likely that your output encoding is set to ASCII. Try using this before sending output:
Console.OutputEncoding = System.Text.Encoding.UTF8;
(MSDN link to supporting documentation.)
And here's a little console test app you may find handy:
C#
using System;
using System.Text;
public static class ConsoleOutputTest {
public static void Main() {
Console.OutputEncoding = System.Text.Encoding.UTF8;
for (var i = 0; i <= 1000; i++) {
Console.Write(Strings.ChrW(i));
if (i % 50 == 0) { // break every 50 chars
Console.WriteLine();
}
}
Console.ReadKey();
}
}
VB.NET
imports Microsoft.VisualBasic
imports System
public module ConsoleOutputTest
Sub Main()
Console.OutputEncoding = System.Text.Encoding.UTF8
dim i as integer
for i = 0 to 1000
Console.Write(ChrW(i))
if i mod 50 = 0 'break every 50 chars
Console.WriteLine()
end if
next
Console.ReadKey()
End Sub
end module
It's also possible that your choice of Console font does not support that particular character. Click on the Windows Tool-bar Menu (icon like C:.) and select Properties -> Font. Try some other fonts to see if they display your character properly:
Try the following:
<a asp-controller="Users" asp-action="Index"></a>
(Valid for ASP.NET 5 and MVC 6)
Best practice of getting length is use length
filter returns the number of items of a sequence or mapping, or the length of a string. For example: {{ notcount | length }}
But you can calculate count of elements in for
loop. For example:
{% set count = 0 %}
{% for nc in notcount %}
{% set count = count + 1 %}
{% endfor %}
{{ count }}
This solution helps if you want to calculate count of elements by condition, for example you have a property name
inside object and you want to calculate count of objects with not empty names:
{% set countNotEmpty = 0 %}
{% for nc in notcount if nc.name %}
{% set countNotEmpty = countNotEmpty + 1 %}
{% endfor %}
{{ countNotEmpty }}
Useful links:
OpenAPI 3.0 now supports Bearer/JWT authentication natively. It's defined like this:
openapi: 3.0.0
...
components:
securitySchemes:
bearerAuth:
type: http
scheme: bearer
bearerFormat: JWT # optional, for documentation purposes only
security:
- bearerAuth: []
This is supported in Swagger UI 3.4.0+ and Swagger Editor 3.1.12+ (again, for OpenAPI 3.0 specs only!).
UI will display the "Authorize" button, which you can click and enter the bearer token (just the token itself, without the "Bearer " prefix). After that, "try it out" requests will be sent with the Authorization: Bearer xxxxxx
header.
Authorization
header programmatically (Swagger UI 3.x)If you use Swagger UI and, for some reason, need to add the Authorization
header programmatically instead of having the users click "Authorize" and enter the token, you can use the requestInterceptor
. This solution is for Swagger UI 3.x; UI 2.x used a different technique.
// index.html
const ui = SwaggerUIBundle({
url: "http://your.server.com/swagger.json",
...
requestInterceptor: (req) => {
req.headers.Authorization = "Bearer xxxxxxx"
return req
}
})
Epsilon is your "fuzz factor," since doubles may not be exactly equal. Epsilon lets you describe how close they have to be.
If you were expecting 3.14159 but would take anywhere from 3.14059 to 3.14259 (that is, within 0.001), then you should write something like
double myPi = 22.0d / 7.0d; //Don't use this in real life!
assertEquals(3.14159, myPi, 0.001);
(By the way, 22/7 comes out to 3.1428+, and would fail the assertion. This is a good thing.)
If you are using tcsh, then edit your ~/.cshrc
file to include the lines:
setenv CLICOLOR 1
setenv LSCOLORS dxfxcxdxbxegedabagacad
Where, like Martin says, LSCOLORS specifies the color scheme you want to use.
To generate the LSCOLORS you want to use, checkout this site
Just add your own index. Keep it simple.
int i = 0;
foreach (var item in Collection)
{
item.index = i;
++i;
}
From the @Tgr's comment, there is an online tool : https://codetabs.com/count-loc/count-loc-online.html
this example start the timer unitl destroyed in Kotlin
private lateinit var timerTask: TimerTask
timerTask = object : TimerTask() {
override fun run() {
Log.d("KTZ", "$minutes:$seconds");
timeRecordingLiveData.postValue("$minutes:$seconds")
seconds += 1;
if (seconds == 60) {
Log.d("KTZ", "$minutes:$seconds");
timeRecordingLiveData.postValue("$minutes:$seconds")
seconds = 0;
minutes += 1;
}
}
}
Cancel the timertask in onDestroy()
timerTask.cancel()
I wanted to give you an example for using memoization to compute Fibonacci as this will allow you to compute significantly larger numbers using recursion:
cache = {}
def fib_dp(n):
if n in cache:
return cache[n]
if n == 0: return 0
elif n == 1: return 1
else:
value = fib_dp(n-1) + fib_dp(n-2)
cache[n] = value
return value
print(fib_dp(998))
This is still recursive, but uses a simple hashtable that allows the reuse of previously calculated Fibonacci numbers instead of doing them again.
This should work for you:
Consider Table1 has a column by the name of activity which may have the same value in more than one record. This is how you will extract ONLY the unique entries of activity field within Table1.
#An array of multiple data entries
@table1 = Table1.find(:all)
#extracts **activity** for each entry in the array @table1, and returns only the ones which are unique
@unique_activities = @table1.map{|t| t.activity}.uniq
As this question comes up again and again, here is one more answer. I hope to add something for beginners wondering about "best practice" here.
SELECT COUNT(*) FROM something
counts records which is an easy task.
SELECT COUNT(1) FROM something
retrieves a 1 per record and than counts the 1s that are not null, which is essentially counting records, only more complicated.
Having said this: Good dbms notice that the second statement will result in the same count as the first statement and re-interprete it accordingly, as not to do unnecessary work. So usually both statements will result in the same execution plan and take the same amount of time.
However from the point of readability you should use the first statement. You want to count records, so count records, not expressions. Use COUNT(expression) only when you want to count non-null occurences of something.
Based on the following plunk, consider the following HTML markup:
<body>
<div log='some-div'></div>
</body>
With the following directive declaration:
myApp.directive('log', function() {
return {
controller: function( $scope, $element, $attrs, $transclude ) {
console.log( $attrs.log + ' (controller)' );
},
compile: function compile( tElement, tAttributes ) {
console.log( tAttributes.log + ' (compile)' );
return {
pre: function preLink( scope, element, attributes ) {
console.log( attributes.log + ' (pre-link)' );
},
post: function postLink( scope, element, attributes ) {
console.log( attributes.log + ' (post-link)' );
}
};
}
};
});
The console output will be:
some-div (compile)
some-div (controller)
some-div (pre-link)
some-div (post-link)
We can see that compile
is executed first, then controller
, then pre-link
and last is post-link
.
Note: The following does not apply to directives that render their children in their link function. Quite a few Angular directives do so (like ngIf, ngRepeat, or any directive with
transclude
). These directives will natively have theirlink
function called before their child directivescompile
is called.
The original HTML markup is often made of nested elements, each with its own directive. Like in the following markup (see plunk):
<body>
<div log='parent'>
<div log='..first-child'></div>
<div log='..second-child'></div>
</div>
</body>
The console output will look like this:
// The compile phase
parent (compile)
..first-child (compile)
..second-child (compile)
// The link phase
parent (controller)
parent (pre-link)
..first-child (controller)
..first-child (pre-link)
..first-child (post-link)
..second-child (controller)
..second-child (pre-link)
..second-child (post-link)
parent (post-link)
We can distinguish two phases here - the compile phase and the link phase.
When the DOM is loaded Angular starts the compile phase, where it traverses the markup top-down, and calls compile
on all directives. Graphically, we could express it like so:
It is perhaps important to mention that at this stage, the templates the compile function gets are the source templates (not instance template).
DOM instances are often simply the result of a source template being rendered to the DOM, but they may be created by ng-repeat
, or introduced on the fly.
Whenever a new instance of an element with a directive is rendered to the DOM, the link phase starts.
In this phase, Angular calls controller
, pre-link
, iterates children, and call post-link
on all directives, like so:
It depends if you consider if a subclass of a given class is equals to its parent.
class LastName
{
(...)
}
class FamilyName
extends LastName
{
(..)
}
here I would use 'instanceof', because I want a LastName to be compared to FamilyName
class Organism
{
}
class Gorilla extends Organism
{
}
here I would use 'getClass', because the class already says that the two instances are not equivalent.
Using Dapper.Contrib it is as simple as this:
Insert list:
public int Insert(IEnumerable<YourClass> yourClass)
{
using (SqlConnection conn = new SqlConnection(ConnectionString))
{
conn.Open();
return conn.Insert(yourClass) ;
}
}
Insert single:
public int Insert(YourClass yourClass)
{
using (SqlConnection conn = new SqlConnection(ConnectionString))
{
conn.Open();
return conn.Insert(yourClass) ;
}
}
Update list:
public bool Update(IEnumerable<YourClass> yourClass)
{
using (SqlConnection conn = new SqlConnection(ConnectionString))
{
conn.Open();
return conn.Update(yourClass) ;
}
}
Update single:
public bool Update(YourClass yourClass)
{
using (SqlConnection conn = new SqlConnection(ConnectionString))
{
conn.Open();
return conn.Update(yourClass) ;
}
}
Source: https://github.com/StackExchange/Dapper/tree/master/Dapper.Contrib
On Android platforms, Oruxmaps (http://www.oruxmaps.com) does a great job at caching all WMS sources. It is available in the play store. I use it daily in remote areas without any connectivity, works like a charm.
I have never developed with HangOut. I ran into the same problems with FB-login and I was trying so hard to get it to click programatically. Then later I discovered that the sdk won't allow you to programatically click the button because of some security reasons. The user has to physically click on the button. This also happens with async asp fileupload button. So please check if HangOut does allow you to programatically click a buttton. All above codes are correct and they should work. If you dig deep enough you will see that my answer is the right answer for your situation you.
Void refers to the type. Basically the type of data that it points to is unknown.
Null refers to the value. It's essentially a pointer to nothing, and is invalid to use.
background-attachment: fixed;
http://www.w3.org/TR/CSS21/colors.html#background-properties
One solution would be to auto-fill the inputs with whitespace characters, and have them clear on focus.
Example: http://nfdb.net/autofill.php
<!doctype html>
<html>
<head>
<title>Autofill Test</title>
<script>
var userfield;
// After the document has loaded, manipulate DOM elements.
window.addEventListener('load', function() {
// Get the username field element.
userfield = document.getElementById('user');
// Listen to the 'focus' event on the input element.
userfield.addEventListener('focus', function() {
// Checks if the value is the EM space character,
// and removes it when the input is recieves focus.
if (this.value == '\u2003') this.value = ''
}, false);
// Listen to the 'blur' event on the input element.
// Triggered when the user focuses on another element or window.
userfield.addEventListener('blur', function() {
// Checks if the value is empty (the user hasn't typed)
// and inserts the EM space character if necessary.
if (this.value == '') this.value = '\u2003';
}, false);
}, false);
</script>
</head>
<body>
<form method="GET" action="">
<input id="user" name="username" type="text" value=" "/><br/>
<input name="password" type="password" value=""/><br/>
<input type="submit" value="Login">
</form>
</body>
</html>
This should stop the browser from auto-filling the fields, but still allow them to auto-complete.
Here's another example that clears the form inputs after the page loads. The advantage of this method is that the inputs never have any whitespace characters in them, the disadvantage is that there's a small possibility that the auto-filled values may be visible for a few milliseconds.
<!doctype html>
<html>
<head>
<title>Autofill Test</title>
<script>
var userfield, passfield;
// Wait for the document to load, then call the clear function.
window.addEventListener('load', function() {
// Get the fields we want to clear.
userfield = document.getElementById('user');
passfield = document.getElementById('pass');
// Clear the fields.
userfield.value = '';
passfield.value = '';
// Clear the fields again after a very short period of time, in case the auto-complete is delayed.
setTimeout(function() { userfield.value = ''; passfield.value = ''; }, 50);
setTimeout(function() { userfield.value = ''; passfield.value = ''; }, 100);
}, false);
</script>
</head>
<body>
<div>This form has autofill disabled:</div>
<form name="login" method="GET" action="./autofill2.php">
<input id="user" name="username" type="text" value=""/><br/>
<input id="pass" name="password" type="password" value=""/><br/>
<input type="submit" value="Login">
</form>
<div>This form is untouched:</div>
<form name="login" method="GET" action="./autofill2.php">
<input name="username" type="text" value=""/><br/>
<input name="password" type="password" value=""/><br/>
<input type="submit" value="Login">
</form>
</body>
</html>
Sometimes, it may help switching off AllowAutoRedirect
and setting both login POST
and page GET
requests the same user agent.
request.UserAgent = userAgent;
request.AllowAutoRedirect = false;
If (Not IsNull(Me.id.Value)) Then
DoCmd.GoToRecord , , acNext
End If
Hi, you need to put this in form activate, and have an id field named id...
this way it passes until it reaches the one without id (AKA new one)...
If you are using jaxrs or any other, then there will be a class called mediatype.User interceptor before sending the request and compare it against this.
A key can be a function that returns a tuple:
s = sorted(s, key = lambda x: (x[1], x[2]))
Or you can achieve the same using itemgetter
(which is faster and avoids a Python function call):
import operator
s = sorted(s, key = operator.itemgetter(1, 2))
And notice that here you can use sort
instead of using sorted
and then reassigning:
s.sort(key = operator.itemgetter(1, 2))
A little late to the party, but this worked for me. Hopefully someone else finds it useful.
<div ng-repeat="video in videos" ng-if="$index < 3">
...
</div>
There are indeed a lot of string similarity measures out there:
You can find explanation and java implementation of these here: https://github.com/tdebatty/java-string-similarity
struct emp {
int id;
char *name;
};
struct emp get() {
char *name = "John";
struct emp e1 = {100, name};
return (e1);
}
int main() {
struct emp e2 = get();
printf("%s\n", e2.name);
}
works fine with newer versions of compilers. Just like id, content of the name gets copied to the assigned structure variable.
Nothing compares to extjs in terms of community size and presence on StackOverflow. Despite previous controversy, Ext JS now has a GPLv3 open source license. Its learning curve is long, but it can be quite rewarding once learned. Ext JS lacks a Material Design theme, and the team has repeatedly refused to release the source code on GitHub. For mobile, one must use the separate Sencha Touch library.
Have in mind also that,
large JavaScript libraries, such as YUI, have been receiving less attention from the community. Many developers today look at large JavaScript libraries as walled gardens they don’t want to be locked into.
-- Announcement of YUI development being ceased
That said, below are a number of Ext JS alternatives currently available.
Blueprint is a React-based UI toolkit developed by big data analytics company Palantir in TypeScript, and "optimized for building complex data-dense interfaces for desktop applications". Actively developed on GitHub as of May 2019, with comprehensive documentation. Components range from simple (chips, toast, icons) to complex (tree, data table, tag input with autocomplete, date range picker. No accordion or resizer.
Blueprint targets modern browsers (Chrome, Firefox, Safari, IE 11, and Microsoft Edge) and is licensed under a modified Apache license.
Sandbox / demo • GitHub • Docs
Webix - an advanced, easy to learn, mobile-friendly, responsive and rich free&open source JavaScript UI components library. Webix spun off from DHTMLX Touch (a project with 8 years of development behind it - see below) and went on to become a standalone UI components framework. The GPL3 edition allows commercial use and lets non-GPL applications using Webix keep their license, e.g. MIT, via a license exemption for FLOSS. Webix has 55 UI widgets, including trees, grids, treegrids and charts. Funding comes from a commercial edition with some advanced widgets (Pivot, Scheduler, Kanban, org chart etc.). Webix has an extensive list of free and commercial widgets, and integrates with most popular frameworks (React, Vue, Meteor, etc) and UI components.
Skins look modern, and include a Material Design theme. The Touch theme also looks quite Material Design-ish. See also the Skin Builder.
Minimal GitHub presence, but includes the library code, and the documentation (which still needs major improvements). Webix suffers from a having a small team and a lack of marketing. However, they have been responsive to user feedback, both on GitHub and on their forum.
The library was lean (128Kb gzip+minified for all 55 widgets as of ~2015), faster than ExtJS, dojo and others, and the design is pleasant-looking. The current version of Webix (v6, as of Nov 2018) got heavier (400 - 676kB minified but NOT gzipped).
The demos on Webix.com look and function great. The developer, XB Software, uses Webix in solutions they build for paying customers, so there's likely a good, funded future ahead of it.
Webix aims for backwards compatibility down to IE8, and as a result carries some technical debt.
Wikipedia • GitHub • Playground/sandbox • Admin dashboard demo • Demos • Widget samples
react-md - MIT-licensed Material Design UI components library for React. Responsive, accessible. Implements components from simple (buttons, cards) to complex (sortable tables, autocomplete, tags input, calendars). One lead author, ~1900 GitHub stars.
kendo - jQuery-based UI toolkit with 40+ basic open-source widgets, plus commercial professional widgets (grids, trees, charts etc.). Responsive&mobile support. Works with Bootstrap and AngularJS. Modern, with Material Design themes. The documentation is available on GitHub, which has enabled numerous contributions from users (4500+ commits, 500+ PRs as of Jan 2015).
Well-supported commercially, claiming millions of developers, and part of a large family of developer tools. Telerik has received many accolades, is a multi-national company (Bulgaria, US), was acquired by Progress Software, and is a thought leader.
A Kendo UI Professional developer license costs $700 and posting access to most forums is conditioned upon having a license or being in the trial period.
[Wikipedia] • GitHub/Telerik • Demos • Playground • Tools
OpenUI5 - jQuery-based UI framework with 180 widgets, Apache 2.0-licensed and fully-open sourced and funded by German software giant SAP SE.
The community is much larger than that of Webix, SAP is hiring developers to grow OpenUI5, and they presented OpenUI5 at OSCON 2014.
The desktop themes are rather lackluster, but the Fiori design for web and mobile looks clean and neat.
Wikipedia • GitHub • Mobile-first controls demos • Desktop controls demos • SO
DHTMLX - JavaScript library for building rich Web and Mobile apps. Looks most like ExtJS - check the demos. Has been developed since 2005 but still looks modern. All components except TreeGrid are available under GPLv2 but advanced features for many components are only available in the commercial PRO edition - see for example the tree. Claims to be used by many Fortune 500 companies.
Minimal presence on GitHub (the main library code is missing) and StackOverflow but active forum. The documentation is not available on GitHub, which makes it difficult to improve by the community.
Polymer, a Web Components polyfill, plus Polymer Paper, Google's implementation of the Material design. Aimed at web and mobile apps. Doesn't have advanced widgets like trees or even grids but the controls it provides are mobile-first and responsive. Used by many big players, e.g. IBM or USA Today.
Ant Design claims it is "a design language for background applications", influenced by "nature" and helping designers "create low-entropy atmosphere for developer team". That's probably a poor translation from Chinese for "UI components for enterprise web applications". It's a React UI library written in TypeScript, with many components, from simple (buttons, cards) to advanced (autocomplete, calendar, tag input, table).
The project was born in China, is popular with Chinese companies, and parts of the documentation are available only in Chinese. Quite popular on GitHub, yet it makes the mistake of splitting the community into Chinese and English chat rooms. The design looks Material-ish, but fonts are small and the information looks lost in a see of whitespace.
PrimeUI - collection of 45+ rich widgets based on jQuery UI. Apache 2.0 license. Small GitHub community. 35 premium themes available.
qooxdoo - "a universal JavaScript framework with a coherent set of individual components", developed and funded by German hosting provider 1&1 (see the contributors, one of the world's largest hosting companies. GPL/EPL (a business-friendly license).
Mobile themes look modern but desktop themes look old (gradients).
Wikipedia • GitHub • Web/Mobile/Desktop demos • Widgets Demo browser • Widget browser • SO • Playground • Community
jQuery UI - easy to pick up; looks a bit dated; lacks advanced widgets. Of course, you can combine it with independent widgets for particular needs, e.g. trees or other UI components, but the same can be said for any other framework.
angular + Angular UI. While Angular is backed by Google, it's being radically revamped in the upcoming 2.0 version, and "users will need to get to grips with a new kind of architecture. It's also been confirmed that there will be no migration path from Angular 1.X to 2.0". Moreover, the consensus seems to be that Angular 2 won't really be ready for use until a year or two from now. Angular UI has relatively few widgets (no trees, for example).
DojoToolkit and their powerful Dijit set of widgets. Completely open-sourced and actively developed on GitHub, but development is now (Nov 2018) focused on the new dojo.io framework, which has very few basic widgets. BSD/AFL license. Development started in 2004 and the Dojo Foundation is being sponsored by IBM, Google, and others - see Wikipedia. 7500 questions here on SO.
Themes look desktop-oriented and dated - see the theme tester in dijit. The official theme previewer is broken and only shows "Claro". A Bootstrap theme exists, which looks a lot like Bootstrap, but doesn't use Bootstrap classes. In Jan 2015, I started a thread on building a Material Design theme for Dojo, which got quite popular within the first hours. However, there are questions regarding building that theme for the current Dojo 1.10 vs. the next Dojo 2.0. The response to that thread shows an active and wide community, covering many time zones.
Unfortunately, Dojo has fallen out of popularity and fewer companies appear to use it, despite having (had?) a strong foothold in the enterprise world. In 2009-2012, its learning curve was steep and the documentation needed improvements; while the documentation has substantially improved, it's unclear how easy it is to pick up Dojo nowadays.
With a Material Design theme, Dojo (2.0?) might be the killer UI components framework.
Enyo - front-end library aimed at mobile and TV apps (e.g. large touch-friendly controls). Developed by LG Electronix and Apache-licensed on GitHub.
The radical Cappuccino - Objective-J (a superset of JavaScript) instead of HTML+CSS+DOM
Mochaui, MooTools UI Library User Interface Library. <300 GitHub stars.
CrossUI - cross-browser JS framework to develop and package the exactly same code and UI into Web Apps, Native Desktop Apps (Windows, OS X, Linux) and Mobile Apps (iOS, Android, Windows Phone, BlackBerry). Open sourced LGPL3. Featured RAD tool (form builder etc.). The UI looks desktop-, not web-oriented. Actively developed, small community. No presence on GitHub.
ZinoUI - simple widgets. The DataTable, for instance, doesn't even support sorting.
Wijmo - good-looking commercial widgets, with old (jQuery UI) widgets open-sourced on GitHub (their development stopped in 2013). Developed by ComponentOne, a division of GrapeCity. See Wijmo Complete vs. Open.
CxJS - commercial JS framework based on React, Babel and webpack offering form elements, form validation, advanced grid control, navigational elements, tooltips, overlays, charts, routing, layout support, themes, culture dependent formatting and more.
Widgets - Demo Apps - Examples - GitHub
SproutCore - developed by Apple for web applications with native performance, handling large data sets on the client. Powers iCloud.com. Not intended for widgets.
Wakanda: aimed at business/enterprise web apps - see What is Wakanda?. Architecture:
Wakanda Application Framework (datasource layer + browser-based interface widgets) that helps with browser and device compatibility across desktop and mobile
Wakanda is highly integrated, includes a ton of features out of the box, but has a very small GitHub community and SO presence.
Servoy - "a cross platform frontend development and deployment environment for SQL databases". Boasts a "full WYSIWIG (What You See Is What You Get) UI designer for HTML5 with built-in data-binding to back-end services", responsive design, support for HTML6 Web Components, Websockets and mobile platforms. Written in Java and generates JavaScript code using various JavaBeans.
SmartClient/SmartGWT - mobile and cross-browser HTML5 UI components combined with a Java server. Aimed at building powerful business apps - see demos.
Vaadin - full-stack Java/GWT + JavaScript/HTML3 web app framework
Backbase - portal software
Shiny - front-end library on top R, with visualization, layout and control widgets
ZKOSS: Java+jQuery+Bootstrap framework for building enterprise web and mobile apps.
These libraries don't implement complex widgets such as tables with sorting/filtering, autocompletes, or trees.
Foundation for Apps - responsive front-end framework on top of AngularJS; more of a grid/layout/navigation library
UI Kit - similar to Bootstrap, with fewer widgets, but with official off-canvas.
Using the canvas elements allows for complete control over the UI, and great cross-browser compatibility, but comes at the cost of missing native browser functionality, e.g. page search via Ctrl/Cmd+F.
This is the query I normally use,
select s.sid
,s.serial#
,s.username
,s.machine
,s.status
,s.lockwait
,t.used_ublk
,t.used_urec
,t.start_time
from v$transaction t
inner join v$session s on t.addr = s.taddr;
It's the directory where java
was run from, where you started the JVM. Does not have to be within the user's home directory. It can be anywhere where the user has permission to run java.
So if you cd
into /somedir
, then run your program, user.dir
will be /somedir
.
A different property, user.home
, refers to the user directory. As in /Users/myuser
or /home/myuser
or C:\Users\myuser
.
See here for a list of system properties and their descriptions.
Using the SysUtils.TStringHelper.Split function, introduced in Delphi XE3:
var
MyString: String;
Splitted: TArray<String>;
begin
MyString := 'word:doc,txt,docx';
Splitted := MyString.Split([':']);
end.
This will split a string with a given delimiter into an array of strings.
Ok I just noticed that my question was already answered in the question title.
To unstage files use
git reset HEAD /file/name
And to undo the changes to a file
git checkout -- /file/name
If you have a batch of files inside a folder you can undo the whole folder
git checkout -- /folder/name
Note that all these commands are already displayed when you git status
Here I created a dummy repo and listed all 3 possibilities
# On branch master
# Changes to be committed:
# (use "git reset HEAD <file>..." to unstage)
#
# modified: test
#
# Changes not staged for commit:
# (use "git add <file>..." to update what will be committed)
# (use "git checkout -- <file>..." to discard changes in working directory)
#
# modified: test2
#
# Untracked files:
# (use "git add <file>..." to include in what will be committed)
#
# test3
Easiest way to solve this problem is install ASP.NET MVC 3 from Web Platforms installer.
http://www.microsoft.com/web/downloads/
Or by using Nuget command
Install-Package Microsoft.AspNet.Mvc -Version 3.0.50813.1
INSTALL_FAILED_NO_MATCHING_ABIS is when you are trying to install an app that has native libraries and it doesn't have a native library for your cpu architecture. For example if you compiled an app for armv7 and are trying to install it on an emulator that uses the Intel architecture instead it will not work.
Using Xamarin on Visual Studio 2015. Fix this issue by:
Under "Supported architectures" make the following checked:
save
Edit: This solution has been reported as working on Visual Studio 2017 as well.
Edit 2: This solution has been reported as working on Visual Studio 2017 for Mac as well.
<Grid >
<Grid.ColumnDefinitions>
<ColumnDefinition Width="*"/>
</Grid.ColumnDefinitions>
<Button Command="{Binding ClickCommand}" Width="100" Height="100" Content="wefwfwef"/>
</Grid>
the code behind for the window:
public partial class MainWindow : Window
{
public MainWindow()
{
InitializeComponent();
DataContext = new ViewModelBase();
}
}
The ViewModel:
public class ViewModelBase
{
private ICommand _clickCommand;
public ICommand ClickCommand
{
get
{
return _clickCommand ?? (_clickCommand = new CommandHandler(() => MyAction(), ()=> CanExecute));
}
}
public bool CanExecute
{
get
{
// check if executing is allowed, i.e., validate, check if a process is running, etc.
return true/false;
}
}
public void MyAction()
{
}
}
Command Handler:
public class CommandHandler : ICommand
{
private Action _action;
private Func<bool> _canExecute;
/// <summary>
/// Creates instance of the command handler
/// </summary>
/// <param name="action">Action to be executed by the command</param>
/// <param name="canExecute">A bolean property to containing current permissions to execute the command</param>
public CommandHandler(Action action, Func<bool> canExecute)
{
_action = action;
_canExecute = canExecute;
}
/// <summary>
/// Wires CanExecuteChanged event
/// </summary>
public event EventHandler CanExecuteChanged
{
add { CommandManager.RequerySuggested += value; }
remove { CommandManager.RequerySuggested -= value; }
}
/// <summary>
/// Forcess checking if execute is allowed
/// </summary>
/// <param name="parameter"></param>
/// <returns></returns>
public bool CanExecute(object parameter)
{
return _canExecute.Invoke();
}
public void Execute(object parameter)
{
_action();
}
}
I hope this will give you the idea.
just write "java -d64 -version" or d32 and if you have It installed it will give a response with current version installed
<html>
<head>
<title>Login page</title>
</head>
<body>
<h1>Simple Login Page</h1>
<form name="login">
Username<input type="text" name="userid"/>
Password<input type="password" name="pswrd"/>
<input type="button" onclick="check(this.form)" value="Login"/>
<input type="reset" value="Cancel"/>
</form>
<script language="javascript">
function check(form) { /*function to check userid & password*/
/*the following code checkes whether the entered userid and password are matching*/
if(form.userid.value == "myuserid" && form.pswrd.value == "mypswrd") {
window.open('target.html')/*opens the target page while Id & password matches*/
}
else {
alert("Error Password or Username")/*displays error message*/
}
}
</script>
</body>
</html>
You can ssh
directly from the Terminal on Mac, but you need to use a .PEM
key rather than the putty
.PPK
key. You can use PuttyGen on Windows to convert from .PEM
to .PPK
, I'm not sure about the other way around though.
You can also convert the key using putty
for Mac via port
or brew
:
sudo port install putty
or
brew install putty
This will also install puttygen
. To get puttygen
to output a .PEM
file:
puttygen privatekey.ppk -O private-openssh -o privatekey.pem
Once you have the key, open a terminal window and:
ssh -i privatekey.pem [email protected]
The private key must have tight security settings otherwise SSH complains. Make sure only the user can read the key.
chmod go-rw privatekey.pem
em.persist(abc);
em.refresh(abc);
return abc;
I've solved this issue by directly editing the byte array. Collect the UTF8 preamble and remove directly the header. Afterward you can transform the byte[]to a string with GetString method, see below. The \r and \t I've removed as well, just as precaution.
XmlDocument configurationXML = new XmlDocument();
List<byte> byteArray = new List<byte>(webRequest.downloadHandler.data);
foreach(byte singleByte in Encoding.UTF8.GetPreamble())
{
byteArray.RemoveAt(byteArray.IndexOf(singleByte));
}
string xml = System.Text.Encoding.UTF8.GetString(byteArray.ToArray());
xml = xml.Replace("\\r", "");
xml = xml.Replace("\\t", "");
If you want the entire row instead of just the id
, you can use df.nlargest
and pass in how many 'top' rows you want and you can also pass in for which column/columns you want it for.
df.nlargest(2,['A'])
will give you the rows corresponding to the top 2 values of A
.
use df.nsmallest
for min values.
According to the Apple docs:
This method is called when the view controller's view's size is changed by its parent (i.e. for the root view controller when its window rotates or is resized).
override func viewWillTransition(to size: CGSize, with coordinator: UIViewControllerTransitionCoordinator) {
super.viewWillTransition(to: size, with: coordinator)
if UIDevice.current.orientation.isLandscape {
print("Landscape")
}
if UIDevice.current.orientation.isFlat {
print("Flat")
} else {
print("Portrait")
}
}
So are you trying to grep through older versions of the code looking to see where something last exists?
If I were doing this, I would probably use git bisect. Using bisect, you can specify a known good version, a known bad version, and a simple script that does a check to see if the version is good or bad (in this case a grep to see if the code you are looking for is present). Running this will find when the code was removed.
I notice that your URL has spaces in it. I think that usually is a bad thing. Try encoding the URL with
$my_url = urlencode("my url");
and then calling
file_get_contents($my_url);
and see if you have better luck.
Play released its module for dealing with JSON independently from Play Framework, Play WS
Made a blog post about that, check it out at http://pedrorijo.com/blog/scala-json/
Using case classes, and Play WS (already included in Play Framework) you case convert between json and case classes with a simple one-liner implicit
case class User(username: String, friends: Int, enemies: Int, isAlive: Boolean)
object User {
implicit val userJsonFormat = Json.format[User]
}
i also faced same problem,
Reason: why i faced this error is, rather then creating new partial view, i have created class and then renamed its extension from ".cs" to ".cshtml".
Solution: Just delete that rename view and re-create proper partial/full view. it will work fine after that.
Here is a really fast and easy way of setting it permanently
NB: running SET GLOBAL sql_mode=(SELECT REPLACE(@@sql_mode,'ONLY_FULL_GROUP_BY',''));
is temporary and on server restart you will still end up with the error.
To fix this permanently do the below
wget https://gist.githubusercontent.com/nfourtythree/90fb8ef5eeafdf478f522720314c60bd/raw/disable-strict-mode.sh
chmod +x disable-strict-mode.sh
./disable-strict-mode.sh
And your done , changes will be made to mysql and it will be restarted
Please note that C# and C++'s % operator is actually NOT a modulo, it's remainder. The formula for modulo that you want, in your case, is:
float nfmod(float a,float b)
{
return a - b * floor(a / b);
}
You have to recode this in C# (or C++) but this is the way you get modulo and not a remainder.
The following snippet will safely create a temporary directory (-d
) and store its name into the TMPDIR
. (An example use of TMPDIR
variable is shown later in the code where it's used for storing original files that will be possibly modified.)
The first trap
line executes exit 1
command when any of the specified signals is received. The second trap
line removes (cleans up) the $TMPDIR
on program's exit (both normal and abnormal). We initialize these traps after we check that mkdir -d
succeeded to avoid accidentally executing the exit trap with $TMPDIR
in an unknown state.
#!/bin/bash
# Create a temporary directory and store its name in a variable ...
TMPDIR=$(mktemp -d)
# Bail out if the temp directory wasn't created successfully.
if [ ! -e $TMPDIR ]; then
>&2 echo "Failed to create temp directory"
exit 1
fi
# Make sure it gets removed even if the script exits abnormally.
trap "exit 1" HUP INT PIPE QUIT TERM
trap 'rm -rf "$TMPDIR"' EXIT
# Example use of TMPDIR:
for f in *.csv; do
cp "$f" "$TMPDIR"
# remove duplicate lines but keep order
perl -ne 'print if ++$k{$_}==1' "$TMPDIR/$f" > "$f"
done
When I was installing from GitHub I was able to use:
pip install git+ssh://[email protected]/<username>/<projectname>.git#egg=<eggname>
But, since I had to run pip as sudo
, the SSH keys were not working with GitHub any more, and "git clone" failed on "Permission denied (publickey)". Using git+https
allowed me to run the command as sudo, and have GitHub ask me for my user/password.
sudo pip install git+https://github.com/<username>/<projectname>.git#egg=<eggname>
Add this to your xml:
android:listSelector="@android:color/transparent"
And for the problem this may work (I'm not sure and I don't know if there are better solutions):
You could apply a ColorStateList to your TextView.
With the help of user=User.query.filter_by(username=form.username.data).first()
statement you will get the specified user in user
variable.
Now you can change the value of the new object variable like user.no_of_logins += 1
and save the changes with the session
's commit method.