You need to add 2 methods, note __hash__
and __eq__
:
class MyThing:
def __init__(self,name,location,length):
self.name = name
self.location = location
self.length = length
def __hash__(self):
return hash((self.name, self.location))
def __eq__(self, other):
return (self.name, self.location) == (other.name, other.location)
def __ne__(self, other):
# Not strictly necessary, but to avoid having both x==y and x!=y
# True at the same time
return not(self == other)
The Python dict documentation defines these requirements on key objects, i.e. they must be hashable.
A bit late but if you don't mind a nested array you could take this approach:
$main_array = array(); //Your array that you want to push the value into
$value = 10; //The value you want to push into $main_array
array_push($main_array, array('Key' => $value));
To clarify, if you output json_encode($main_array) that will look like [{"Key":"10"}]
I stumbled across this too and the solution was unironically to simply run this:
mysql
Using data.frame
instead of cbind
should be helpful
x <- data.frame(col1=c(10, 20), col2=c("[]", "[]"), col3=c("[[1,2]]","[[1,3]]"))
x
col1 col2 col3
1 10 [] [[1,2]]
2 20 [] [[1,3]]
sapply(x, class) # looking into x to see the class of each element
col1 col2 col3
"numeric" "factor" "factor"
As you can see elements from col1 are numeric
as you wish.
data.frame
can have variables of different class
: numeric
, factor
and character
but matrix
doesn't, once you put a character
element into a matrix all the other will become into this class no matter what clase they were before.
Solved it.
I tried all of the solutions above but it still did not work. I'm currently using WAMP to launch the mysql server. When I tried to open the "php.ini" file with the WAMP panel, it said that it did not exist and asked me to create a new "php.ini" in the location, "C:\wamp\bin\apache\apache2.4.17\bin". Once I created this new "php.ini" file, I located the existing "php.ini" file which was in the path "C:\wamp\bin\php\php5.6.15", and cloned it. I then pasted the clone in the previous path where it had asked me to create the "php.ini" file.
Hope this helped.
You can use $pdf->GetX()
and $pdf->GetY()
to get current cooridnates and use them to insert image.
$pdf->Image($image1, 5, $pdf->GetY(), 33.78);
or even
$pdf->Image($image1, 5, null, 33.78);
(ALthough in first case you can add a number to create a bit of a space)
$pdf->Image($image1, 5, $pdf->GetY() + 5, 33.78);
Use document.scrollTop
to change the position of the document. Set the scrollTop
of the document
equal to the bottom
of the featured section of your site
@Sheridan thx.. if I try your example with "DisplayedImagePath" on both sides, it works with absolute path as you show.
As for the relative paths, this is how I always connect relative paths, I first include the subdirectory (!) and the image file in my project.. then I use ~ character to denote the bin-path..
public string DisplayedImagePath
{
get { return @"~\..\images\osc.png"; }
}
This was tested, see below my Solution Explorer in VS2015..
Note: if you want a Click event, use the Button tag around the image,
<Button Click="image_Click" Width="128" Height="128" Grid.Row="2" VerticalAlignment="Top" HorizontalAlignment="Left">_x000D_
<Image x:Name="image" Source="{Binding DisplayedImagePath}" Margin="0,0,0,0" />_x000D_
</Button>
_x000D_
If you want to follow all the "best practices," there's a few things I'd recommend, some of which are touched on in other answers and comments to this question.
First, while it doesn't have too much of an affect on the specific question you asked, you did mention efficiency, and the best way to handle shared data in your application is to factor it out into a service.
I would personally recommend embracing AngularJS's promise system, which will make your asynchronous services more composable compared to raw callbacks. Luckily, Angular's $http
service already uses them under the hood. Here's a service that will return a promise that resolves to the data from the JSON file; calling the service more than once will not cause a second HTTP request.
app.factory('locations', function($http) {
var promise = null;
return function() {
if (promise) {
// If we've already asked for this data once,
// return the promise that already exists.
return promise;
} else {
promise = $http.get('locations/locations.json');
return promise;
}
};
});
As far as getting the data into your directive, it's important to remember that directives are designed to abstract generic DOM manipulation; you should not inject them with application-specific services. In this case, it would be tempting to simply inject the locations
service into the directive, but this couples the directive to that service.
A brief aside on code modularity: a directive’s functions should almost never be responsible for getting or formatting their own data. There’s nothing to stop you from using the $http service from within a directive, but this is almost always the wrong thing to do. Writing a controller to use $http is the right way to do it. A directive already touches a DOM element, which is a very complex object and is difficult to stub out for testing. Adding network I/O to the mix makes your code that much more difficult to understand and that much more difficult to test. In addition, network I/O locks in the way that your directive will get its data – maybe in some other place you’ll want to have this directive receive data from a socket or take in preloaded data. Your directive should either take data in as an attribute through scope.$eval and/or have a controller to handle acquiring and storing the data.
In this specific case, you should place the appropriate data on your controller's scope and share it with the directive via an attribute.
app.controller('SomeController', function($scope, locations) {
locations().success(function(data) {
$scope.locations = data;
});
});
<ul class="list">
<li ng-repeat="location in locations">
<a href="#">{{location.id}}. {{location.name}}</a>
</li>
</ul>
<map locations='locations'></map>
app.directive('map', function() {
return {
restrict: 'E',
replace: true,
template: '<div></div>',
scope: {
// creates a scope variable in your directive
// called `locations` bound to whatever was passed
// in via the `locations` attribute in the DOM
locations: '=locations'
},
link: function(scope, element, attrs) {
scope.$watch('locations', function(locations) {
angular.forEach(locations, function(location, key) {
// do something
});
});
}
};
});
In this way, the map
directive can be used with any set of location data--the directive is not hard-coded to use a specific set of data, and simply linking the directive by including it in the DOM will not fire off random HTTP requests.
TextWatcher is a bit verbose for my taste, so I made something a bit easier to swallow:
public abstract class TextValidator implements TextWatcher {
private final TextView textView;
public TextValidator(TextView textView) {
this.textView = textView;
}
public abstract void validate(TextView textView, String text);
@Override
final public void afterTextChanged(Editable s) {
String text = textView.getText().toString();
validate(textView, text);
}
@Override
final public void beforeTextChanged(CharSequence s, int start, int count, int after) { /* Don't care */ }
@Override
final public void onTextChanged(CharSequence s, int start, int before, int count) { /* Don't care */ }
}
Just use it like this:
editText.addTextChangedListener(new TextValidator(editText) {
@Override public void validate(TextView textView, String text) {
/* Validation code here */
}
});
Change it to this:
var email = /^[A-Z0-9._%+-]+@[A-Z0-9.-]+\.[A-Z]{2,4}$/i;
This is a regular expression literal that is passed the i
flag which means to be case insensitive.
Keep in mind that email address validation is hard (there is a 4 or 5 page regular expression at the end of Mastering Regular Expressions demonstrating this) and your expression certainly will not capture all valid e-mail addresses.
Change in your html with adding the function on the button click
<input type="button" value="Clear" onclick="javascript:eraseText();">
<textarea id='output' rows=20 cols=90></textarea>
Try this in your js file:
function eraseText() {
document.getElementById("output").value = "";
}
for python3 this worked for me:
sudo pip3 install --upgrade google-api-python-client
I would just create a dictionary and use the code as the key.
Edit: To address the comment about doing a reverse lookup (finding the key), this would not be terribly efficient. If this is necessary, I would write a new class to handle it.
The most upvoted answer can be improved.
Let me refer to GNU Make manual "Setting variables" and "Flavors", and add some comments.
The value you specify is installed verbatim; if it contains references to other variables, these references are expanded whenever this variable is substituted (in the course of expanding some other string). When this happens, it is called recursive expansion.
foo = $(bar)
The catch: foo
will be expanded to the value of $(bar)
each time foo
is evaluated, possibly resulting in different values. Surely you cannot call it "lazy"! This can surprise you if executed on midnight:
# This variable is haunted!
WHEN = $(shell date -I)
something:
touch $(WHEN).flag
# If this is executed on 00:00:00:000, $(WHEN) will have a different value!
something-else-later: something
test -f $(WHEN).flag || echo "Boo!"
VARIABLE := value
VARIABLE ::= value
Variables defined with ‘:=’ or ‘::=’ are simply expanded variables.
Simply expanded variables are defined by lines using ‘:=’ or ‘::=’ [...]. Both forms are equivalent in GNU make; however only the ‘::=’ form is described by the POSIX standard [...] 2012.
The value of a simply expanded variable is scanned once and for all, expanding any references to other variables and functions, when the variable is defined.
Not much to add. It's evaluated immediately, including recursive expansion of, well, recursively expanded variables.
The catch: If VARIABLE
refers to ANOTHER_VARIABLE
:
VARIABLE := $(ANOTHER_VARIABLE)-yohoho
and ANOTHER_VARIABLE
is not defined before this assignment, ANOTHER_VARIABLE
will expand to an empty value.
FOO ?= bar
is equivalent to
ifeq ($(origin FOO), undefined)
FOO = bar
endif
where $(origin FOO)
equals to undefined
only if the variable was not set at all.
The catch: if FOO
was set to an empty string, either in makefiles, shell environment, or command line overrides, it will not be assigned bar
.
VAR += bar
When the variable in question has not been defined before, ‘+=’ acts just like normal ‘=’: it defines a recursively-expanded variable. However, when there is a previous definition, exactly what ‘+=’ does depends on what flavor of variable you defined originally.
So, this will print foo bar
:
VAR = foo
# ... a mile of code
VAR += $(BAR)
BAR = bar
$(info $(VAR))
but this will print foo
:
VAR := foo
# ... a mile of code
VAR += $(BAR)
BAR = bar
$(info $(VAR))
The catch is that +=
behaves differently depending on what type of variable VAR
was assigned before.
The syntax to assign multiline value to a variable is:
define VAR_NAME :=
line
line
endef
or
define VAR_NAME =
line
line
endef
Assignment operator can be omitted, then it creates a recursively-expanded variable.
define VAR_NAME
line
line
endef
The last newline before endef
is removed.
HASH != printf '\043'
is the same as
HASH := $(shell printf '\043')
Don't use it. $(shell)
call is more readable, and the usage of both in a makefiles is highly discouraged. At least, $(shell)
follows Joel's advice and makes wrong code look obviously wrong.
I think you want:
items.GroupBy(item => item.Order.Customer)
.Select(group => new { Customer = group.Key, Items = group.ToList() })
.ToList()
If you want to continue use the overload of GroupBy
you are currently using, you can do:
items.GroupBy(item => item.Order.Customer,
(key, group) => new { Customer = key, Items = group.ToList() })
.ToList()
...but I personally find that less clear.
This is how it is done using the fluent interface of the op4j Java library (1.1. was released Dec '10) :-
List<String> names = Op.onListFor("Ryan", "Julie", "Bob").get();
It's a very cool library that saves you a tonne of time.
In some cases your font resource maybe somewhere in your project directory. So you can load it like this using SCSS
$list: (
"Black",
"BlackItalic",
"Bold",
"BoldItalic",
"Italic",
"Light",
"LightItalic",
"Medium",
"MediumItalic",
"Regular",
"Thin",
"ThinItalic"
);
@mixin setRobotoFonts {
@each $var in $list {
@font-face {
font-family: "Roboto-#{$var}";
src: url("../fonts/Roboto-#{$var}.ttf") format("ttf");
}
}
}
@include setRobotoFonts();
You can easily restart your MySql service. This kicks the error off.
We can also use logging to print data on the console.
Example:
import logging
from flask import Flask
app = Flask(__name__)
@app.route('/print')
def printMsg():
app.logger.warning('testing warning log')
app.logger.error('testing error log')
app.logger.info('testing info log')
return "Check your console"
if __name__ == '__main__':
app.run(debug=True)
Try using the downloadable DotNetVersionLister module (based on registry infos and some version-to-marketing-version lookup table).
Which would be used like this:
PS> Get-DotNetVersion -LocalHost -nosummary
ComputerName : localhost
>=4.x : 4.5.2
v4\Client : Installed
v4\Full : Installed
v3.5 : Installed
v3.0 : Installed
v2.0.50727 : Installed
v1.1.4322 : Not installed (no key)
Ping : True
Error :
Or like this if you just want to test it for some .NET framework >= 4.*:
PS> (Get-DotNetVersion -LocalHost -nosummary).">=4.x"
4.5.2
But it will not work (install/import) e.g. with PS v2.0 (Win 7, Win Server 2010 standard) due to incompatibility...
(You could skip reading this and use code below)
We had to work with PS 2.0 on some machines and could not install/import the above DotNetVersionLister.
On other machines we wanted to update (from PS 2.0) to PS 5.1 (which in turn needs .NET Framework >= 4.5) with the help of two company-custom Install-DotnetLatestCompany
and Install-PSLatestCompany
.
To guide admins nicely through the install/update process we would have to determine the .NET version in these functions on all machines and PS versions existing.
Thus we used also the below functions to determine them more safely in all environments...
So the following code and below (extracted) usage examples are useful here (based on other answers here):
function Get-DotNetVersionByFs {
<#
.SYNOPSIS
NOT RECOMMENDED - try using instead:
Get-DotNetVersion
from DotNetVersionLister module (https://github.com/EliteLoser/DotNetVersionLister),
but it is not usable/importable in PowerShell 2.0
Get-DotNetVersionByReg
reg(istry) based: (available herin as well) but it may return some wrong version or may not work reliably for versions > 4.5
(works in PSv2.0)
Get-DotNetVersionByFs (this):
f(ile) s(ystem) based: determines the latest installed .NET version based on $Env:windir\Microsoft.NET\Framework content
this is unreliable, e.g. if 4.0* is already installed some 4.5 update will overwrite content there without
renaming the folder
(works in PSv2.0)
.EXAMPLE
PS> Get-DotnetVersionByFs
4.0.30319
.EXAMPLE
PS> Get-DotnetVersionByFs -All
1.0.3705
1.1.4322
2.0.50727
3.0
3.5
4.0.30319
.NOTES
from https://stackoverflow.com/a/52078523/1915920
#>
[cmdletbinding()]
param(
[Switch]$All ## do not return only latest, but all installed
)
$list = ls $Env:windir\Microsoft.NET\Framework |
?{ $_.PSIsContainer -and $_.Name -match '^v\d.[\d\.]+' } |
%{ $_.Name.TrimStart('v') }
if ($All) { $list } else { $list | select -last 1 }
}
function Get-DotNetVersionByReg {
<#
.SYNOPSIS
NOT RECOMMENDED - try using instead:
Get-DotNetVersion
From DotNetVersionLister module (https://github.com/EliteLoser/DotNetVersionLister),
but it is not usable/importable in PowerShell 2.0.
Determines the latest installed .NET version based on registry infos under 'HKLM:\SOFTWARE\Microsoft\NET Framework Setup\NDP'
.EXAMPLE
PS> Get-DotnetVersionByReg
4.5.51209
.EXAMPLE
PS> Get-DotnetVersionByReg -AllDetailed
PSChildName Version Release
----------- ------- -------
v2.0.50727 2.0.50727.5420
v3.0 3.0.30729.5420
Windows Communication Foundation 3.0.4506.5420
Windows Presentation Foundation 3.0.6920.5011
v3.5 3.5.30729.5420
Client 4.0.0.0
Client 4.5.51209 379893
Full 4.5.51209 379893
.NOTES
from https://stackoverflow.com/a/52078523/1915920
#>
[cmdletbinding()]
param(
[Switch]$AllDetailed ## do not return only latest, but all installed with more details
)
$Lookup = @{
378389 = [version]'4.5'
378675 = [version]'4.5.1'
378758 = [version]'4.5.1'
379893 = [version]'4.5.2'
393295 = [version]'4.6'
393297 = [version]'4.6'
394254 = [version]'4.6.1'
394271 = [version]'4.6.1'
394802 = [version]'4.6.2'
394806 = [version]'4.6.2'
460798 = [version]'4.7'
460805 = [version]'4.7'
461308 = [version]'4.7.1'
461310 = [version]'4.7.1'
461808 = [version]'4.7.2'
461814 = [version]'4.7.2'
}
$list = Get-ChildItem 'HKLM:\SOFTWARE\Microsoft\NET Framework Setup\NDP' -Recurse |
Get-ItemProperty -name Version, Release -EA 0 |
# For One True framework (latest .NET 4x), change match to PSChildName -eq "Full":
Where-Object { $_.PSChildName -match '^(?!S)\p{L}'} |
Select-Object `
@{
name = ".NET Framework" ;
expression = {$_.PSChildName}},
@{ name = "Product" ;
expression = {$Lookup[$_.Release]}},
Version, Release
if ($AllDetailed) { $list | sort version } else { $list | sort version | select -last 1 | %{ $_.version } }
}
Example usage:
PS> Get-DotNetVersionByFs
4.0.30319
PS> Get-DotNetVersionByFs -All
1.0.3705
1.1.4322
2.0.50727
3.0
3.5
4.0.30319
PS> Get-DotNetVersionByReg
4.5.51209
PS> Get-DotNetVersionByReg -AllDetailed
.NET Framework Product Version Release
-------------- ------- ------- -------
v2.0.50727 2.0.50727.5420
v3.0 3.0.30729.5420
Windows Communication Foundation 3.0.4506.5420
Windows Presentation Foundation 3.0.6920.5011
v3.5 3.5.30729.5420
Client 4.0.0.0
Client 4.5.2 4.5.51209 379893
Full 4.5.2 4.5.51209 379893
create table a1
(weddingTable INT(3),
tableSeat INT(3),
tableSeatID INT(6),
Name varchar(10));
insert into a1
(weddingTable, tableSeat, tableSeatID, Name)
values (001,001,001001,'Bob'),
(001,002,001002,'Joe'),
(001,003,001003,'Dan'),
(002,001,002001,'Mark');
create table a2
(weddingTable int(3),
tableSeat int(3),
Meal varchar(10));
insert into a2
(weddingTable, tableSeat, Meal)
values
(001,001,'Chicken'),
(001,002,'Steak'),
(001,003,'Salmon'),
(002,001,'Steak');
select x.*, y.Meal
from a1 as x
JOIN a2 as y ON (x.weddingTable = y.weddingTable) AND (x.tableSeat = y. tableSeat);
The question doesn't address multiline strings, but here is how you would strip leading whitespace from a multiline string using python's standard library textwrap module. If we had a string like:
s = """
line 1 has 4 leading spaces
line 2 has 4 leading spaces
line 3 has 4 leading spaces
"""
if we print(s)
we would get output like:
>>> print(s)
this has 4 leading spaces 1
this has 4 leading spaces 2
this has 4 leading spaces 3
and if we used textwrap.dedent
:
>>> import textwrap
>>> print(textwrap.dedent(s))
this has 4 leading spaces 1
this has 4 leading spaces 2
this has 4 leading spaces 3
If your matrix is called m
, just use :
R> m[m$three == 11, ]
Binding refers to the link between method call and method definition.
This picture clearly shows what is binding.
In this picture, “a1.methodOne()” call is binding to corresponding methodOne() definition and “a1.methodTwo()” call is binding to corresponding methodTwo() definition.
For every method call there should be proper method definition. This is a rule in java. If compiler does not see the proper method definition for every method call, it throws error.
Now, come to static binding and dynamic binding in java.
Static Binding In Java :
Static binding is a binding which happens during compilation. It is also called early binding because binding happens before a program actually runs
.
Static binding can be demonstrated like in the below picture.
In this picture, ‘a1’ is a reference variable of type Class A pointing to object of class A. ‘a2’ is also reference variable of type class A but pointing to object of Class B.
During compilation, while binding, compiler does not check the type of object to which a particular reference variable is pointing. It just checks the type of reference variable through which a method is called and checks whether there exist a method definition for it in that type.
For example, for “a1.method()” method call in the above picture, compiler checks whether there exist method definition for method() in Class A. Because ‘a1' is Class A type. Similarly, for “a2.method()” method call, it checks whether there exist method definition for method() in Class A. Because ‘a2' is also Class A type. It does not check to which object, ‘a1’ and ‘a2’ are pointing. This type of binding is called static binding.
Dynamic Binding In Java :
Dynamic binding is a binding which happens during run time. It is also called late binding because binding happens when program actually is running.
During run time actual objects are used for binding. For example, for “a1.method()” call in the above picture, method() of actual object to which ‘a1’ is pointing will be called. For “a2.method()” call, method() of actual object to which ‘a2’ is pointing will be called. This type of binding is called dynamic binding.
The dynamic binding of above example can be demonstrated like below.
int last2digits = num - (int) ((double) (num / 100) * 100);
You're after the zip function.
Taken directly from the question: How to merge lists into a list of tuples in Python?
>>> list_a = [1, 2, 3, 4]
>>> list_b = [5, 6, 7, 8]
>>> zip(list_a,list_b)
[(1, 5), (2, 6), (3, 7), (4, 8)]
Try it: sudo mysql_secure_installation
Work's in Ubuntu 18.04
In your invoke web request just use the parameter -UseBasicParsing
e.g. in your script (line 2) you should use:
$rss = Invoke-WebRequest -UseBasicParsing
According to the documentation, this parameter is necessary on systems where IE isn't installed or configured.
Uses the response object for HTML content without Document Object Model (DOM) parsing. This parameter is required when Internet Explorer is not installed on the computers, such as on a Server Core installation of a Windows Server operating system.
Yes. IMHO, overriding GetWebRequest() is the best solution to WebClient's limited functionalty. Before I knew about this option, I wrote lots of really painful code at the HttpWebRequest layer because WebClient almost, but not quite, did what I needed. Derivation is much easier.
Another option is to use the regular WebClient class, but manually populate the Cookie header before making the request and then pull out the Set-Cookies header on the response. There are helper methods on the CookieContainer class which make creating and parsing these headers easier: CookieContainer.SetCookies()
and CookieContainer.GetCookieHeader()
, respectively.
I prefer the former approach since it's easier for the caller and requires less repetitive code than the second option. Also, the derivation approach works the same way for multiple extensibility scenarios (e.g. cookies, proxies, etc.).
I hope this can help someone who was faced with my same problem.
This answer uses the Bootstrap DatePicker Plugin, which is not native to bootstrap.
Make sure you install Bootstrap DatePicker through NuGet
Create a small piece of JavaScript and name it DatePickerReady.js save it in Scripts dir. This will make sure it works even in non HTML5 browsers although those are few nowadays.
if (!Modernizr.inputtypes.date) {
$(function () {
$(".datecontrol").datepicker();
});
}
Set the bundles
bundles.Add(New ScriptBundle("~/bundles/bootstrap").Include(
"~/Scripts/bootstrap.js",
"~/Scripts/bootstrap-datepicker.js",
"~/Scripts/DatePickerReady.js",
"~/Scripts/respond.js"))
bundles.Add(New StyleBundle("~/Content/css").Include(
"~/Content/bootstrap.css",
"~/Content/bootstrap-datepicker3.css",
"~/Content/site.css"))
Now set the Datatype so that when EditorFor is used MVC will identify what is to be used.
<Required>
<DataType(DataType.Date)>
Public Property DOB As DateTime? = Nothing
Your view code should be
@Html.EditorFor(Function(model) model.DOB, New With {.htmlAttributes = New With {.class = "form-control datecontrol", .PlaceHolder = "Enter Date of Birth"}})
and voila
In relational databases, tables are relations (in mathematical meaning). Relations are sets of tuples. Thus table row in relational database is tuple in relation.
Wiki on relations:
In mathematics (more specifically, in set theory and logic), a relation is a property that assigns truth values to combinations (k-tuples) of k individuals. Typically, the property describes a possible connection between the components of a k-tuple. For a given set of k-tuples, a truth value is assigned to each k-tuple according to whether the property does or does not hold.
Windows 10 OS has yet another registry subkey, this one in the SYSTEM hive file:
Computer\HKEY_LOCAL_MACHINE\SYSTEM\Setup\
The Install Date information here is the original computer OS install date/time. It also tells you when the update started, ie
Computer\HKEY_LOCAL_MACHINE\SYSTEM\Setup\Source OS (Updated on xxxxxx)."
This may of course not be when the update ends, the user may choose to turn off instead of rebooting when prompted, etc...
The update can actually complete on a different day, and
Computer\HKEY_LOCAL_MACHINE\SYSTEM\Setup\Source OS (Updated on xxxxxx)"
will reflect the date/time it started the update.
Plenty of solutions are available above, but I think below solution is pretty simple and easy to understand.
Two segments Vector AB and Vector CD intersect if and only if
More specifically a and b are on opposite side of segment CD if and only if exactly one of the two triples a,c,d and b,c,d is in counterclockwise order.
Intersect(a, b, c, d)
if CCW(a, c, d) == CCW(b, c, d)
return false;
else if CCW(a, b, c) == CCW(a, b, d)
return false;
else
return true;
Here CCW represent counterclockwise which returns true/false based on the orientation of the points.
Source : http://compgeom.cs.uiuc.edu/~jeffe/teaching/373/notes/x06-sweepline.pdf Page 2
What about char.IsDigit(myChar)
?
If you're sure you configure your aws correctly, just make sure the user of the project can read from ./aws or just run your project as a root
Borrowing from what Ivo van der Wijk and gnibbler have developed earlier, this is a dynamic solution
import cStringIO
import PIL.Image
image_data = None
def imagetopy(image, output_file):
with open(image, 'rb') as fin:
image_data = fin.read()
with open(output_file, 'w') as fout:
fout.write('image_data = '+ repr(image_data))
def pytoimage(pyfile):
pymodule = __import__(pyfile)
img = PIL.Image.open(cStringIO.StringIO(pymodule.image_data))
img.show()
if __name__ == '__main__':
imagetopy('spot.png', 'wishes.py')
pytoimage('wishes')
You can then decide to compile the output image file with Cython to make it cool. With this method, you can bundle all your graphics into one module.
Usually this happens if something is wrong with the byte array.
File.WriteAllBytes("filename.PDF", Byte[]);
This creates a new file, writes the specified byte array to the file, and then closes the file. If the target file already exists, it is overwritten.
Asynchronous implementation of this is also available.
public static System.Threading.Tasks.Task WriteAllBytesAsync
(string path, byte[] bytes, System.Threading.CancellationToken cancellationToken = null);
With version 1.9.3.Final, Keycloak has a number of OpenID endpoints available. These can be found at /auth/realms/{realm}/.well-known/openid-configuration
. Assuming your realm is named demo
, that endpoint will produce a JSON response similar to this.
{
"issuer": "http://localhost:8080/auth/realms/demo",
"authorization_endpoint": "http://localhost:8080/auth/realms/demo/protocol/openid-connect/auth",
"token_endpoint": "http://localhost:8080/auth/realms/demo/protocol/openid-connect/token",
"token_introspection_endpoint": "http://localhost:8080/auth/realms/demo/protocol/openid-connect/token/introspect",
"userinfo_endpoint": "http://localhost:8080/auth/realms/demo/protocol/openid-connect/userinfo",
"end_session_endpoint": "http://localhost:8080/auth/realms/demo/protocol/openid-connect/logout",
"jwks_uri": "http://localhost:8080/auth/realms/demo/protocol/openid-connect/certs",
"grant_types_supported": [
"authorization_code",
"implicit",
"refresh_token",
"password",
"client_credentials"
],
"response_types_supported": [
"code",
"none",
"id_token",
"token",
"id_token token",
"code id_token",
"code token",
"code id_token token"
],
"subject_types_supported": [
"public"
],
"id_token_signing_alg_values_supported": [
"RS256"
],
"response_modes_supported": [
"query",
"fragment",
"form_post"
],
"registration_endpoint": "http://localhost:8080/auth/realms/demo/clients-registrations/openid-connect"
}
As far as I have found, these endpoints implement the Oauth 2.0 spec.
You can chain class selectors without a space between them:
.a.b {
color: #666;
}
Note that, if it matters to you, IE6 treats .a.b
as .b
, so in that browser both div.a.b
and div.b
will have gray text. See this answer for a comparison between proper browsers and IE6.
Cardinality refers to the uniqueness of data contained in a column. If a column has a lot of duplicate data (e.g. a column that stores either "true" or "false"), it has low cardinality, but if the values are highly unique (e.g. Social Security numbers), it has high cardinality.
answer
shouldn't be a pointer, the intent is obviously to hold a character. scanf
takes the address of this character, so it should be called as
char answer;
scanf(" %c", &answer);
Next, your "or" statement is formed incorrectly.
if (answer == 'Y' || answer == 'y')
What you wrote originally asks to compare answer
with the result of 'Y' || 'y'
, which I'm guessing isn't quite what you wanted to do.
For example, in your component before you declare your @Component
const en = require('../assets/en.json');
To avoid caching, one option is to give different URL for the same resource or data. To generate different URL, you can add a random query string to the end of the URL. This technique works for JQuery, Angular or other type ajax requests.
myURL = myURL +"?random="+new Date().getTime();
Easy way, just write some wrong code and Run > Build it will show the error in output window.
I tried all of the above but no success, just this one worked.
Using %lf
will help you in solving this problem.
Use :
scanf("%lf",&doub)
If you opt to convert this inside return( ) of render method, easiest option would be using map( ) method. Map your array into JSX syntax using map() function, as shown below (ES6 syntax is used).
Inside parent component:
<tbody>
{ objectArray.map(object => <ObjectRow key={object.id} object={object.value}>) }
</tbody>
Please note the key
attribute added to your child component. If you didn't provide a key attribute, you can see the following warning on your console.
Warning: Each child in an array or iterator should have a unique "key" prop.
Note: One common mistake people do is using index
as key when iterating, using index
of the element as a key is an anti-pattern and you can read more about it here. In short, if it's NOT a static list never use index
as key.
Now at the ObjectRow component, you can access the object from its properties.
Inside ObjectRow component
const { object } = this.props
or
const object = this.props.object
This should fetch you the object you passed from parent component to the variable object
in ObjectRow component. Now you can spit out the values in that object according to your purpose.
References :
Am I missing something? Somebody correct me if I'm wrong.
list.RemoveAll(s => s.Name == "Fred");
Yes. It is possible :D
SELECT SUM(totalHours) totalHours
FROM
(
select sum(hours) totalHours from resource
UNION ALL
select sum(hours) totalHours from projects-time
) s
As a sidenote, the tablename projects-time
must be delimited to avoid syntax error. Delimiter symbols vary on RDBMS you are using.
IE can set username and password proxies, so maybe setting it there and import does work
reg add "HKCU\Software\Microsoft\Windows\CurrentVersion\Internet Settings" /v ProxyEnable /t REG_DWORD /d 1
reg add "HKCU\Software\Microsoft\Windows\CurrentVersion\Internet Settings" /v ProxyServer /t REG_SZ /d name:port
reg add "HKCU\Software\Microsoft\Windows\CurrentVersion\Internet Settings" /v ProxyUser /t REG_SZ /d username
reg add "HKCU\Software\Microsoft\Windows\CurrentVersion\Internet Settings" /v ProxyPass /t REG_SZ /d password
netsh winhttp import proxy source=ie
This probably works for a lot of things but it's not enough for Maven and certainly not for the maven compiler plugin.
Check Mike's answer to his own question here: stackoverflow question 24705877
This solved the issue for me both command line AND within eclipse.
Also, @LinGao answer to stackoverflow question 2503658 and the use of the $JAVACMD variable might help but I haven't tested it myself.
self
is the self-reference in a Class. Your code is not in a class, you only have functions defined. You have to wrap your methods in a class, like below. To use the method main()
, you first have to instantiate an object of your class and call the function on the object.
Further, your function setavalue
should be in __init___
, the method called when instantiating an object. The next step you probably should look at is supplying the name as an argument to init, so you can create arbitrarily named objects of the Name
class ;)
class Name:
def __init__(self):
self.myname = "harry"
def printaname(self):
print "Name", self.myname
def main(self):
self.printaname()
if __name__ == "__main__":
objName = Name()
objName.main()
Have a look at the Classes chapter of the Python tutorial an at Dive into Python for further references.
As mentioned in other answers you can use:
>> tic; x=5*ones(10,1); toc
Elapsed time is 0.000415 seconds.
An even faster method is:
>> tic; x=5; x=x(ones(10,1)); toc
Elapsed time is 0.000257 seconds.
Here is the BESTEST way to send emails using PHPmailer library, this is the only method that works for me.
require_once 'mailer/class.phpmailer.php';
$mail = new PHPMailer(); // create a new object
$mail->IsSMTP(); // enable SMTP
$mail->SMTPDebug = 1; // debugging: 1 = errors and messages, 2 = messages only
$mail->SMTPAuth = true; // authentication enabled
$mail->SMTPSecure = 'ssl'; // secure transfer enabled REQUIRED for GMail
$mail->Host = "smtp.gmail.com";
$mail->Port = 465; // or 587
$mail->IsHTML(true);
$mail->Username = "[email protected]";
$mail->Password = "xxxxxxx";
$mail->SetFrom("[email protected]");
$mail->AddAddress($to);
$logfile = dirname(dirname(__FILE__)) . '/mail.log';
try {
$mail->Body = $message;
$mail->Subject = $subject;
file_put_contents($logfile, "Content: \n", FILE_APPEND);
file_put_contents($logfile, $message . "\n\n", FILE_APPEND);
if(!$mail->Send()) {
echo "Mailer Error: " . $mail->ErrorInfo;
} else {
echo "Email has been sent";
}
} catch (Exception $e) {
#print_r($e->getMessage());
file_put_contents($logfile, "Error: \n", FILE_APPEND);
file_put_contents($logfile, $e->getMessage() . "\n", FILE_APPEND);
file_put_contents($logfile, $e->getTraceAsString() . "\n\n", FILE_APPEND);
}
This is an older thread,but I will post my answer for others. I have to recreate the project in a different workspace after the changes to make it work, as discussed in JavaServer Faces 2.2 requires Dynamic Web Module 2.5 or newer
$(document).ready(function(){
$('#some-id').trigger('click');
});
did the trick.
I was in the same boat as you recently, and here is what I did:
I used the phpwebsockets code as a reference for how to structure the server-side code. (You seem to already be doing this, and as you noted, the code doesn't actually work for a variety of reasons.)
I used PHP.net to read the details about every socket function used in the phpwebsockets code. By doing this, I was finally able to understand how the whole system works conceptually. This was a pretty big hurdle.
I read the actual WebSocket draft. I had to read this thing a bunch of times before it finally started to sink in. You will likely have to go back to this document again and again throughout the process, as it is the one definitive resource with correct, up-to-date information about the WebSocket API.
I coded the proper handshake procedure based on the instructions in the draft in #3. This wasn't too bad.
I kept getting a bunch of garbled text sent from the clients to the server after the handshake and I couldn't figure out why until I realized that the data is encoded and must be unmasked. The following link helped me a lot here: (original link broken) Archived copy.
Please note that the code available at this link has a number of problems and won't work properly without further modification.
I then came across the following SO thread, which clearly explains how to properly encode and decode messages being sent back and forth: How can I send and receive WebSocket messages on the server side?
This link was really helpful. I recommend consulting it while looking at the WebSocket draft. It'll help make more sense out of what the draft is saying.
I was almost done at this point, but had some issues with a WebRTC app I was making using WebSocket, so I ended up asking my own question on SO, which I eventually solved: What is this data at the end of WebRTC candidate info?
At this point, I pretty much had it all working. I just had to add some additional logic for handling the closing of connections, and I was done.
That process took me about two weeks total. The good news is that I understand WebSocket really well now and I was able to make my own client and server scripts from scratch that work great. Hopefully the culmination of all that information will give you enough guidance and information to code your own WebSocket PHP script.
Good luck!
Edit: This edit is a couple of years after my original answer, and while I do still have a working solution, it's not really ready for sharing. Luckily, someone else on GitHub has almost identical code to mine (but much cleaner), so I recommend using the following code for a working PHP WebSocket solution:
https://github.com/ghedipunk/PHP-Websockets/blob/master/websockets.php
Edit #2: While I still enjoy using PHP for a lot of server-side related things, I have to admit that I've really warmed up to Node.js a lot recently, and the main reason is because it's better designed from the ground up to handle WebSocket than PHP (or any other server-side language). As such, I've found recently that it's a lot easier to set up both Apache/PHP and Node.js on your server and use Node.js for running the WebSocket server and Apache/PHP for everything else. And in the case where you're on a shared hosting environment in which you can't install/use Node.js for WebSocket, you can use a free service like Heroku to set up a Node.js WebSocket server and make cross-domain requests to it from your server. Just make sure if you do that to set your WebSocket server up to be able to handle cross-origin requests.
$("input[name='btnsubmit']").attr('disabled', true);
$('input[name="filphoto"]').change(function () {
var ext = this.value.match(/\.(.+)$/)[1];
switch (ext)
{
case 'jpg':
case 'jpeg':
case 'png':
case 'bmp':
$("input[name='btnsubmit']").attr('disabled', false);
break;
default:
alert('This is not an allowed file type.');
$("input[name='btnsubmit']").attr('disabled', true);
this.value = '';
Just use this command and it will handle this error npm install --unsafe-perm --allow-root
an example of a language feature that isn't just removing line breaks, although still not convinced this is clearer than the more verbose version
a = 1 if x > 15 else 2
It's really easy to do with github pages, it's just a bit weird the first time you do it. Sorta like the first time you had to juggle 3 kittens while learning to knit. (OK, it's not all that bad)
You need a gh-pages branch:
Basically github.com looks for a gh-pages branch of the repository. It will serve all HTML pages it finds in here as normal HTML directly to the browser.
How do I get this gh-pages branch?
Easy. Just create a branch of your github repo called gh-pages
.
Specify --orphan
when you create this branch, as you don't actually want to merge this branch back into your github branch, you just want a branch that contains your HTML resources.
$ git checkout --orphan gh-pages
What about all the other gunk in my repo, how does that fit in to it?
Nah, you can just go ahead and delete it. And it's safe to do now, because you've been paying attention and created an orphan branch which can't be merged back into your main branch and remove all your code.
I've created the branch, now what?
You need to push this branch up to github.com, so that their automation can kick in and start hosting these pages for you.
git push -u origin gh-pages
But.. My HTML is still not being served!
It takes a few minutes for github to index these branches and fire up the required infrastructure to serve up the content. Up to 10 minutes according to github.
The steps layed out by github.com
https://help.github.com/articles/creating-project-pages-manually
Assuming your object name is BASKET, simply set BASKET = "";
Based on my little knowledge of Oracle... a USER and a SCHEMA are somewhat similar. But there is also a major difference. A USER can be called a SCHEMA if the "USER" owns any object, otherwise ... it will only remain a "USER". Once the USER owns at least one object then by virtue of all of your definitions above.... the USER can now be called a SCHEMA.
Since 9.0 this is even easier:
SELECT id,
string_agg(some_column, ',')
FROM the_table
GROUP BY id
Lambda Expression result
var storesList = context.Stores.Select(x => new { Value= x.name,Text= x.ID }).ToList();
You can have many java versions in your system.
I think you should add the java 8 in yours JREs installed or edit.
Take a look my screen:
If you click in edit (check your java 8 path):
The System.Math.Round
method uses the Double
structure, which, as others have pointed out, is prone to floating point precision errors. The simple solution I found to this problem when I encountered it was to use the System.Decimal.Round
method, which doesn't suffer from the same problem and doesn't require redifining your variables as decimals:
Decimal.Round(0.575, 2, MidpointRounding.AwayFromZero)
Result: 0.58
I'd be tempted to have a map m - and embedd this into the enum.
setup with m[MyEnum.VAL1] = "Value 1";
and all is done.
Instead of 1:nrow(mydata_2)
you can simply use the which()
function: which(mydata_2[,4] == 1578)
Although as it was pointed out above, the 3rd column contains 1578, not the fourth:
which(mydata_2[,3] == 1578)
The difference between factory and service is just like the difference between a function and an object
Factory Provider
Gives us the function's return value ie. You just create an object, add properties to it, then return that same object.When you pass this service into your controller, those properties on the object will now be available in that controller through your factory. (Hypothetical Scenario)
Singleton and will only be created once
Reusable components
Factory are a great way for communicating between controllers like sharing data.
Can use other dependencies
Usually used when the service instance requires complex creation logic
Cannot be injected in .config()
function.
Used for non configurable services
If you're using an object, you could use the factory provider.
Syntax: module.factory('factoryName', function);
Service Provider
Gives us the instance of a function (object)- You just instantiated with the ‘new’ keyword and you’ll add properties to ‘this’ and the service will return ‘this’.When you pass the service into your controller, those properties on ‘this’ will now be available on that controller through your service. (Hypothetical Scenario)
Singleton and will only be created once
Reusable components
Services are used for communication between controllers to share data
You can add properties and functions to a service object by using the this
keyword
Dependencies are injected as constructor arguments
Used for simple creation logic
Cannot be injected in .config()
function.
If you're using a class you could use the service provider
Syntax: module.service(‘serviceName’, function);
In below example I have define MyService
and MyFactory
. Note how in .service
I have created the service methods using this.methodname.
In .factory
I have created a factory object and assigned the methods to it.
AngularJS .service
module.service('MyService', function() {
this.method1 = function() {
//..method1 logic
}
this.method2 = function() {
//..method2 logic
}
});
AngularJS .factory
module.factory('MyFactory', function() {
var factory = {};
factory.method1 = function() {
//..method1 logic
}
factory.method2 = function() {
//..method2 logic
}
return factory;
});
Also Take a look at this beautiful stuffs
Confused about service vs factory
If you want a previous version of file, I would recommend using git checkout.
git checkout <commit-hash>
Doing this will send you back in time, it does not affect the current state of your project, you can come to mainline git checkout mainline
but when you add a file in the argument, that file is brought back to you from a previous time to your current project time, i.e. your current project is changed and needs to be committed.
git checkout <commit-hash> -- file_name
git add .
git commit -m 'file brought from previous time'
git push
The advantage of this is that it does not delete history, and neither does revert a particular code changes (git revert)
Check more here https://www.atlassian.com/git/tutorials/undoing-changes#git-checkout
Also if you want to return 404 status from your controller all you need is to do this
@RequestMapping(value = "/somthing", method = RequestMethod.POST)
@ResponseBody
public HttpStatus doSomthing(@RequestBody String employeeId) {
try{
return HttpStatus.OK;
}
catch(Exception ex){
return HttpStatus.NOT_FOUND;
}
}
By doing this you will receive a 404 error in case when you want to return a 404 from your controller.
To use this in batch scripting it's handy to have the script return just the package name (e.g. for uninstalling an app when you have the APK).
Here's the script I use:
# extract the android package id from a built apk file
# usage ./getPackageName.sh <path-to-apk>
line=`aapt dump badging "$1" | grep package:\ name`
# above returns:
# package: name='com.calvium.myapp' versionCode='1' versionName='1.0'
if [[ $line =~ name=\'(.+)\'\ versionCode ]]; then
echo ${BASH_REMATCH[1]}
else
echo "Failed to find package name"
exit 1
fi
So you could write:
adb uninstall `./getPackageName.sh file.apk`
If you only need to pass the value from the outside into the lambda, and not get it out, you can do it with a regular anonymous class instead of a lambda:
list.forEach(new Consumer<Example>() {
int ordinal = 0;
public void accept(Example s) {
s.setOrdinal(ordinal);
ordinal++;
}
});
Here is what the JSF javadocs have to say about the commandButton
action
attribute:
MethodExpression representing the application action to invoke when this component is activated by the user. The expression must evaluate to a public method that takes no parameters, and returns an Object (the toString() of which is called to derive the logical outcome) which is passed to the NavigationHandler for this application.
It would be illuminating to me if anyone can explain what that has to do with any of the answers on this page. It seems pretty clear that action
refers to some page's filename and not a method.
[DataContract] and [DataMember] attribute are found in System.ServiceModel namespace which is in System.ServiceModel.dll .
System.ServiceModel uses the System and System.Runtime.Serialization namespaces to serialize the datamembers.
To complete the answer, it could work something like this...
UIRemoteNotificationType types = [[UIApplication sharedApplication] enabledRemoteNotificationTypes];
switch (types) {
case UIRemoteNotificationTypeAlert:
case UIRemoteNotificationTypeBadge:
// For enabled code
break;
case UIRemoteNotificationTypeSound:
case UIRemoteNotificationTypeNone:
default:
// For disabled code
break;
}
edit: This is not right. since these are bit-wise stuff, it wont work with a switch, so I ended using this:
UIRemoteNotificationType types = [[UIApplication sharedApplication] enabledRemoteNotificationTypes];
UIRemoteNotificationType typesset = (UIRemoteNotificationTypeAlert | UIRemoteNotificationTypeBadge);
if((types & typesset) == typesset)
{
CeldaSwitch.chkSwitch.on = true;
}
else
{
CeldaSwitch.chkSwitch.on = false;
}
Arrays are non-negative integer indexed , so maximum array size you can access would be Integer.MAX_VALUE
. The other thing is how big array you can create. It depends on the maximum memory available to your JVM
and the content type of the array. Each array element has it's size, example. byte = 1 byte
, int = 4 bytes
, Object reference = 4 bytes (on a 32 bit system)
So if you have 1 MB
memory available on your machine, you could allocate an array of byte[1024 * 1024]
or Object[256 * 1024]
.
Answering your question - You can allocate an array of size (maximum available memory / size of array item).
Summary - Theoretically the maximum size of an array will be Integer.MAX_VALUE
. Practically it depends on how much memory your JVM
has and how much of that has already been allocated to other objects.
Just use standard CSS variables:
Your global css (eg: styles.css)
body {
--my-var: #000
}
In your component's css or whatever it is:
span {
color: var(--my-var)
}
Then you can change the value of the variable directly with TS/JS by setting inline style to html element:
document.querySelector("body").style.cssText = "--my-var: #000";
Otherwise you can use jQuery for it:
$("body").css("--my-var", "#fff");
The cssrewrite filter is not compatible with the @bundle notation for now. So you have two choices:
Reference the CSS files in the web folder (after: console assets:install --symlink web
)
{% stylesheets '/bundles/myCompany/css/*." filter="cssrewrite" %}
Use the cssembed filter to embed images in the CSS like this.
{% stylesheets '@MyCompanyMyBundle/Resources/assets/css/*.css' filter="cssembed" %}
request.setTimeout(< time in milliseconds >)
does the job
https://nodejs.org/api/http.html#http_request_settimeout_timeout_callback
I think I had a better output, especially for a double datatype sorting.
Though this question has been marked answered, perhaps this will help someone else;
Arrays.sort(newTag, new Comparator<String[]>() {
@Override
public int compare(final String[] entry1, final String[] entry2) {
final Integer time1 = (int)Integer.valueOf((int) Double.parseDouble(entry1[2]));
final Integer time2 = (int)Integer.valueOf((int) Double.parseDouble(entry2[2]));
return time1.compareTo(time2);
}
});
You're looking for a group by:
select *
from table
group by field1
Which can occasionally be written with a distinct on statement:
select distinct on field1 *
from table
On most platforms, however, neither of the above will work because the behavior on the other columns is unspecified. (The first works in MySQL, if that's what you're using.)
You could fetch the distinct fields and stick to picking a single arbitrary row each time.
On some platforms (e.g. PostgreSQL, Oracle, T-SQL) this can be done directly using window functions:
select *
from (
select *,
row_number() over (partition by field1 order by field2) as row_number
from table
) as rows
where row_number = 1
On others (MySQL, SQLite), you'll need to write subqueries that will make you join the entire table with itself (example), so not recommended.
Do you really need to "build" it from javascript or can you simply return the built HTML from PHP and insert it into the DOM?
Here is a code example with an initialized small collection for testing:
class Program
{
static void Main(string[] args)
{
List<Order> orders = new List<Order>
{
new Order
{
OrderID = "orderID1",
OrderLines = new List<OrderLine>
{
new OrderLine
{
ProductSKU = "SKU1",
Quantity = 1
},
new OrderLine
{
ProductSKU = "SKU2",
Quantity = 2
},
new OrderLine
{
ProductSKU = "SKU3",
Quantity = 3
}
}
},
new Order
{
OrderID = "orderID2",
OrderLines = new List<OrderLine>
{
new OrderLine
{
ProductSKU = "SKU4",
Quantity = 4
},
new OrderLine
{
ProductSKU = "SKU5",
Quantity = 5
}
}
}
};
//required result is the list of all SKUs in orders
List<string> allSKUs = new List<string>();
//With Select case 2 foreach loops are required
var flattenedOrdersLinesSelectCase = orders.Select(o => o.OrderLines);
foreach (var flattenedOrderLine in flattenedOrdersLinesSelectCase)
{
foreach (OrderLine orderLine in flattenedOrderLine)
{
allSKUs.Add(orderLine.ProductSKU);
}
}
//With SelectMany case only one foreach loop is required
allSKUs = new List<string>();
var flattenedOrdersLinesSelectManyCase = orders.SelectMany(o => o.OrderLines);
foreach (var flattenedOrderLine in flattenedOrdersLinesSelectManyCase)
{
allSKUs.Add(flattenedOrderLine.ProductSKU);
}
//If the required result is flattened list which has OrderID, ProductSKU and Quantity,
//SelectMany with selector is very helpful to get the required result
//and allows avoiding own For loops what according to my experience do code faster when
// hundreds of thousands of data rows must be operated
List<OrderLineForReport> ordersLinesForReport = (List<OrderLineForReport>)orders.SelectMany(o => o.OrderLines,
(o, ol) => new OrderLineForReport
{
OrderID = o.OrderID,
ProductSKU = ol.ProductSKU,
Quantity = ol.Quantity
}).ToList();
}
}
class Order
{
public string OrderID { get; set; }
public List<OrderLine> OrderLines { get; set; }
}
class OrderLine
{
public string ProductSKU { get; set; }
public int Quantity { get; set; }
}
class OrderLineForReport
{
public string OrderID { get; set; }
public string ProductSKU { get; set; }
public int Quantity { get; set; }
}
All credits to @Martijn Pieters in the comments:
You can use the function last_insert_rowid()
:
The
last_insert_rowid()
function returns theROWID
of the last row insert from the database connection which invoked the function. Thelast_insert_rowid()
SQL function is a wrapper around thesqlite3_last_insert_rowid()
C/C++ interface function.
you can set the types explicitly with pandas DataFrame.astype(dtype, copy=True, raise_on_error=True, **kwargs)
and pass in a dictionary with the dtypes you want to dtype
here's an example:
import pandas as pd
wheel_number = 5
car_name = 'jeep'
minutes_spent = 4.5
# set the columns
data_columns = ['wheel_number', 'car_name', 'minutes_spent']
# create an empty dataframe
data_df = pd.DataFrame(columns = data_columns)
df_temp = pd.DataFrame([[wheel_number, car_name, minutes_spent]],columns = data_columns)
data_df = data_df.append(df_temp, ignore_index=True)
In [11]: data_df.dtypes
Out[11]:
wheel_number float64
car_name object
minutes_spent float64
dtype: object
data_df = data_df.astype(dtype= {"wheel_number":"int64",
"car_name":"object","minutes_spent":"float64"})
now you can see that it's changed
In [18]: data_df.dtypes
Out[18]:
wheel_number int64
car_name object
minutes_spent float64
There is no built-in functionality in VBS for that, however, you can use the FileSystemObject FileExists function for that :
Option Explicit
DIM fso
Set fso = CreateObject("Scripting.FileSystemObject")
If (fso.FileExists("C:\Program Files\conf")) Then
WScript.Echo("File exists!")
WScript.Quit()
Else
WScript.Echo("File does not exist!")
End If
WScript.Quit()
I had the same issue, luckily I found the below code
@Html.CheckBoxFor(model => model.As, htmlAttributes: new { @checked = true} )
A Record lets you create a new type from a Union. The values in the Union are used as attributes of the new type.
For example, say I have a Union like this:
type CatNames = "miffy" | "boris" | "mordred";
Now I want to create an object that contains information about all the cats, I can create a new type using the values in the CatName Union as keys.
type CatList = Record<CatNames, {age: number}>
If I want to satisfy this CatList, I must create an object like this:
const cats:CatList = {
miffy: { age:99 },
boris: { age:16 },
mordred: { age:600 }
}
You get very strong type safety:
I used this recently to create a Status component. The component would receive a status prop, and then render an icon. I've simplified the code quite a lot here for illustrative purposes
I had a union like this:
type Statuses = "failed" | "complete";
I used this to create an object like this:
const icons: Record<
Statuses,
{ iconType: IconTypes; iconColor: IconColors }
> = {
failed: {
iconType: "warning",
iconColor: "red"
},
complete: {
iconType: "check",
iconColor: "green"
};
I could then render by destructuring an element from the object into props, like so:
const Status = ({status}) => <Icon {...icons[status]} />
If the Statuses union is later extended or changed, I know my Status component will fail to compile and I'll get an error that I can fix immediately. This allows me to add additional error states to the app.
Note that the actual app had dozens of error states that were referenced in multiple places, so this type safety was extremely useful.
Try using OPENDATASOURCE The syntax is like this:
select * from OPENDATASOURCE ('SQLNCLI', 'Data Source=192.168.6.69;Initial Catalog=AnotherDatabase;Persist Security Info=True;User ID=sa;Password=AnotherDBPassword;MultipleActiveResultSets=true;' ).HumanResources.Department.MyTable
I think your problem is your version numbers. Try making 8.1 --> 8.01, and so forth. That should put the points in the right order.
Alternatively, you could plot using X
, where X is the column number you want, instead of using 1:X
. That will plot those values on the y axis and integers on the x axis. Try:
plot "ls.dat" using 2 title 'Removed' with lines, \
"ls.dat" using 3 title 'Added' with lines, \
"ls.dat" using 4 title 'Modified' with lines
conda create -n py37 -c anaconda anaconda=5.3
seems to be working.
You can simply use .toString()
.
var result = require('child_process').execSync('rsync -avAXz --info=progress2 "/src" "/dest"').toString();
console.log(result);
This has been tested on Node v8.5.0
, I'm not sure about previous versions. According to @etov, it doesn't work on v6.3.1
- I'm not sure about in-between.
Edit: Looking back on this, I've realised that it doesn't actually answer the specific question because it doesn't show the output to you 'live' — only once the command has finished running.
However, I'm leaving this answer here because I know quite a few people come across this question just looking for how to print the result of the command after execution.
Create dictionaries for both arrays using _.keyBy()
, merge the dictionaries, and convert the result to an array with _.values()
. In this way, the order of the arrays doesn't matter. In addition, it can also handle arrays of different length.
const ObjectId = (id) => id; // mock of ObjectId_x000D_
const arr1 = [{"member" : ObjectId("57989cbe54cf5d2ce83ff9d8"),"bank" : ObjectId("575b052ca6f66a5732749ecc"),"country" : ObjectId("575b0523a6f66a5732749ecb")},{"member" : ObjectId("57989cbe54cf5d2ce83ff9d6"),"bank" : ObjectId("575b052ca6f66a5732749ecc"),"country" : ObjectId("575b0523a6f66a5732749ecb")}];_x000D_
const arr2 = [{"member" : ObjectId("57989cbe54cf5d2ce83ff9d6"),"name" : 'xxxxxx',"age" : 25},{"member" : ObjectId("57989cbe54cf5d2ce83ff9d8"),"name" : 'yyyyyyyyyy',"age" : 26}];_x000D_
_x000D_
const merged = _(arr1) // start sequence_x000D_
.keyBy('member') // create a dictionary of the 1st array_x000D_
.merge(_.keyBy(arr2, 'member')) // create a dictionary of the 2nd array, and merge it to the 1st_x000D_
.values() // turn the combined dictionary to array_x000D_
.value(); // get the value (array) out of the sequence_x000D_
_x000D_
console.log(merged);
_x000D_
<script src="https://cdnjs.cloudflare.com/ajax/libs/lodash.js/4.14.0/lodash.min.js"></script>
_x000D_
Using ES6 Map
Concat the arrays, and reduce the combined array to a Map. Use Object#assign to combine objects with the same member
to a new object, and store in map. Convert the map to an array with Map#values and spread:
const ObjectId = (id) => id; // mock of ObjectId_x000D_
const arr1 = [{"member" : ObjectId("57989cbe54cf5d2ce83ff9d8"),"bank" : ObjectId("575b052ca6f66a5732749ecc"),"country" : ObjectId("575b0523a6f66a5732749ecb")},{"member" : ObjectId("57989cbe54cf5d2ce83ff9d6"),"bank" : ObjectId("575b052ca6f66a5732749ecc"),"country" : ObjectId("575b0523a6f66a5732749ecb")}];_x000D_
const arr2 = [{"member" : ObjectId("57989cbe54cf5d2ce83ff9d6"),"name" : 'xxxxxx',"age" : 25},{"member" : ObjectId("57989cbe54cf5d2ce83ff9d8"),"name" : 'yyyyyyyyyy',"age" : 26}];_x000D_
_x000D_
const merged = [...arr1.concat(arr2).reduce((m, o) => _x000D_
m.set(o.member, Object.assign(m.get(o.member) || {}, o))_x000D_
, new Map()).values()];_x000D_
_x000D_
console.log(merged);
_x000D_
It's a reference to the current event object
You'll have to actually USE jQuery to build the div, if you want to write maintainable or usable code.
//create a div
var $newDiv = $('<div>');
//set the id
$newDiv.attr("id","myId");
There is solution with all necessary details for Windows 7 x64:
http://www.youtube.com/watch?v=7qNTi1sEfE8
It is in French, but you can understand everything! I solved same problem, even don't speak French. :-)
Many answers forget to mention that you need to add new version of php_curl.dll file from this location: http://www.anindya.com/php-5-4-3-and-php-5-3-13-x64-64-bit-for-windows/
I added new version of php_curl.dll from archive php_curl-5.4.3-VC9-x64.zip to folders: C:\wamp\bin\php\php5.4.3\ext and C:\Windows\System32 and everything was fine!
Now that you have provided your HTML sample, we're able to see that your XPath is slightly wrong. While it's valid XPath, it's logically wrong.
You've got:
//*[contains(@id, 'ctl00_btnAircraftMapCell')]//*[contains(@title, 'Select Seat')]
Which translates into:
Get me all the elements that have an ID
that contains ctl00_btnAircraftMapCell
. Out of these elements, get any child elements that have a title
that contains Select Seat
.
What you actually want is:
//a[contains(@id, 'ctl00_btnAircraftMapCell') and contains(@title, 'Select Seat')]
Which translates into:
Get me all the anchor elements that have both: an id
that contains ctl00_btnAircraftMapCell
and a title
that contains Select Seat
.
Change the Target version to new updates you have. Otherwise, change what SDK version you have in the Android manifest file.
android:minSdkVersion="8"
android:targetSdkVersion="18"
1, 2, 3 ,... are invalid identifiers in python because first of all they are integer objects and secondly in python a variable name can't start with a number.
>>> 1 = 12 #you can't assign to an integer
File "<ipython-input-177-30a62b7248f1>", line 1
SyntaxError: can't assign to literal
>>> 1a = 12 #1a is an invalid variable name
File "<ipython-input-176-f818ca46b7dc>", line 1
1a = 12
^
SyntaxError: invalid syntax
Valid identifier definition:
identifier ::= (letter|"_") (letter | digit | "_")*
letter ::= lowercase | uppercase
lowercase ::= "a"..."z"
uppercase ::= "A"..."Z"
digit ::= "0"..."9"
Try this:
USE YourDB;
GO
-- Truncate the log by changing the database recovery model to SIMPLE.
ALTER DATABASE YourDB
SET RECOVERY SIMPLE;
GO
-- Shrink the truncated log file to 50 MB.
DBCC SHRINKFILE (YourDB_log, 50);
GO
-- Reset the database recovery model.
ALTER DATABASE YourDB
SET RECOVERY FULL;
GO
I hope it helps.
Not with CSS you can't. You need to use JS. A quick example copying the img to the background:
var $el = document.getElementById( 'rightflower' )
, $img = $el.getElementsByTagName( 'img' )[0]
, src = $img.src
$el.innerHTML = "";
$el.style.background = "url( " + src + " ) repeat-y;"
Or you can actually repeat the image, but how many times?
var $el = document.getElementById( 'rightflower' )
, str = ""
, imgHTML = $el.innerHTML
, i, i2;
for( i=0,i2=10; i<i2; i++ ){
str += imgHTML;
}
$el.innerHTML = str;
There was no year 0000 and there is no month 00 or day 00. I suggest you try
0001-01-01 00:00:00
While a year 0 has been defined in some standards, it is more likely to be confusing than useful IMHO.
im attach my vb.net code based on brian reference
Imports System.ComponentModel
Imports System.Runtime.InteropServices
Public Class PinvokeWindowsNetworking
Const NO_ERROR As Integer = 0
Private Structure ErrorClass
Public num As Integer
Public message As String
Public Sub New(ByVal num As Integer, ByVal message As String)
Me.num = num
Me.message = message
End Sub
End Structure
Private Shared ERROR_LIST As ErrorClass() = New ErrorClass() {
New ErrorClass(5, "Error: Access Denied"),
New ErrorClass(85, "Error: Already Assigned"),
New ErrorClass(1200, "Error: Bad Device"),
New ErrorClass(67, "Error: Bad Net Name"),
New ErrorClass(1204, "Error: Bad Provider"),
New ErrorClass(1223, "Error: Cancelled"),
New ErrorClass(1208, "Error: Extended Error"),
New ErrorClass(487, "Error: Invalid Address"),
New ErrorClass(87, "Error: Invalid Parameter"),
New ErrorClass(1216, "Error: Invalid Password"),
New ErrorClass(234, "Error: More Data"),
New ErrorClass(259, "Error: No More Items"),
New ErrorClass(1203, "Error: No Net Or Bad Path"),
New ErrorClass(1222, "Error: No Network"),
New ErrorClass(1206, "Error: Bad Profile"),
New ErrorClass(1205, "Error: Cannot Open Profile"),
New ErrorClass(2404, "Error: Device In Use"),
New ErrorClass(2250, "Error: Not Connected"),
New ErrorClass(2401, "Error: Open Files")}
Private Shared Function getErrorForNumber(ByVal errNum As Integer) As String
For Each er As ErrorClass In ERROR_LIST
If er.num = errNum Then Return er.message
Next
Try
Throw New Win32Exception(errNum)
Catch ex As Exception
Return "Error: Unknown, " & errNum & " " & ex.Message
End Try
Return "Error: Unknown, " & errNum
End Function
<DllImport("Mpr.dll")>
Private Shared Function WNetUseConnection(ByVal hwndOwner As IntPtr, ByVal lpNetResource As NETRESOURCE, ByVal lpPassword As String, ByVal lpUserID As String, ByVal dwFlags As Integer, ByVal lpAccessName As String, ByVal lpBufferSize As String, ByVal lpResult As String) As Integer
End Function
<DllImport("Mpr.dll")>
Private Shared Function WNetCancelConnection2(ByVal lpName As String, ByVal dwFlags As Integer, ByVal fForce As Boolean) As Integer
End Function
<StructLayout(LayoutKind.Sequential)>
Private Class NETRESOURCE
Public dwScope As Integer = 0
Public dwType As Integer = 0
Public dwDisplayType As Integer = 0
Public dwUsage As Integer = 0
Public lpLocalName As String = ""
Public lpRemoteName As String = ""
Public lpComment As String = ""
Public lpProvider As String = ""
End Class
Public Shared Function connectToRemote(ByVal remoteUNC As String, ByVal username As String, ByVal password As String) As String
Return connectToRemote(remoteUNC, username, password, False)
End Function
Public Shared Function connectToRemote(ByVal remoteUNC As String, ByVal username As String, ByVal password As String, ByVal promptUser As Boolean) As String
Dim nr As NETRESOURCE = New NETRESOURCE()
nr.dwType = ResourceTypes.Disk
nr.lpRemoteName = remoteUNC
Dim ret As Integer
If promptUser Then
ret = WNetUseConnection(IntPtr.Zero, nr, "", "", Connects.Interactive Or Connects.Prompt, Nothing, Nothing, Nothing)
Else
ret = WNetUseConnection(IntPtr.Zero, nr, password, username, 0, Nothing, Nothing, Nothing)
End If
If ret = NO_ERROR Then Return Nothing
Return getErrorForNumber(ret)
End Function
Public Shared Function disconnectRemote(ByVal remoteUNC As String) As String
Dim ret As Integer = WNetCancelConnection2(remoteUNC, Connects.UpdateProfile, False)
If ret = NO_ERROR Then Return Nothing
Return getErrorForNumber(ret)
End Function
Enum Resources As Integer
Connected = &H1
GlobalNet = &H2
Remembered = &H3
End Enum
Enum ResourceTypes As Integer
Any = &H0
Disk = &H1
Print = &H2
End Enum
Enum ResourceDisplayTypes As Integer
Generic = &H0
Domain = &H1
Server = &H2
Share = &H3
File = &H4
Group = &H5
End Enum
Enum ResourceUsages As Integer
Connectable = &H1
Container = &H2
End Enum
Enum Connects As Integer
Interactive = &H8
Prompt = &H10
Redirect = &H80
UpdateProfile = &H1
CommandLine = &H800
CmdSaveCred = &H1000
LocalDrive = &H100
End Enum
End Class
how to use it
Dim login = PinvokeWindowsNetworking.connectToRemote("\\ComputerName", "ComputerName\UserName", "Password")
If IsNothing(login) Then
'do your thing on the shared folder
PinvokeWindowsNetworking.disconnectRemote("\\ComputerName")
End If
You can also wrap your text in label fields, so your form will be more self-explainable semantically.
Just remember to float labels and inputs to the left and to add a specific width to them, and the containing form. Then you can add margins to both of them, to adjust the spacing between the lines (you understand, of course, that this is a pretty minimal markup that expects content to be as big as to some limit).
That way you wont have to add any more elements, just the label-input pairs, all of them wrapped in a form element.
For example:
<form>
<label for="txtName">Name</label>
<input id"txtName" type="text">
<label for="txtEmail">Email</label>
<input id"txtEmail" type="text">
<label for="txtAddress">Address</label>
<input id"txtAddress" type="text">
...
<input type="submit" value="Submit The Form">
</form>
And the css will be:
form{
float:left; /*to clear the floats of inner elements,usefull if you wanna add a border or background image*/
width:300px;
}
label{
float:left;
width:150px;
margin-bottom:10px; /*or whatever you want the spacing to be*/
}
input{
float:left;
width:150px;
margin-bottom:10px; /*or whatever you want the spacing to be*/
}
Here, we can do this way as well:
//category [@name='category name']/author[contains(text(),'authorname')]
OR
//category [@name='category name']//author[contains(text(),'authorname')]
To Learn XPATH in detail please visit- selenium xpath in detail
Amplifying on baz's answer, if you need to enumerate the argument list with an index (such as to search for a specific word), you can do this without copying the list or mutating it.
Say you want to split an argument list at a double-dash ("--") and pass the arguments before the dashes to one command, and the arguments after the dashes to another:
toolwrapper() {
for i in $(seq 1 $#); do
[[ "${!i}" == "--" ]] && break
done || return $? # returns error status if we don't "break"
echo "dashes at $i"
echo "Before dashes: ${@:1:i-1}"
echo "After dashes: ${@:i+1:$#}"
}
Results should look like this:
$ toolwrapper args for first tool -- and these are for the second
dashes at 5
Before dashes: args for first tool
After dashes: and these are for the second
Integrated Security=true;
doesn't work in all SQL providers, it throws an exception when used with the OleDb
provider.
So basically Integrated Security=SSPI;
is preferred since works with both SQLClient
& OleDB
provider.
Here's the full set of syntaxes according to MSDN - Connection String Syntax (ADO.NET)
No one has explicitly mentioned that weightSum
is a particular XML attribute for LinearLayout
.
I believe this would be helpful to anyone who was confused at first as I was, looking for weightSum
in the ConstraintLayout
documentation.
You can easily change the match-type to 1 when you are looking for the greatest value or to -1 when looking for the smallest value.
It's not a problem with JDK. In Eclipse Helios, it allows the @Override annotation for implemented interface methods, whichever JDK 5 or 6. As for Eclipse Galileo, the @Override annotation is not allowed, whichever JDK 5 or 6.
The documentation makes the calloc
look like malloc
, which just does zero-initialize the memory; this is not the primary difference! The idea of calloc
is to abstract copy-on-write semantics for memory allocation. When you allocate memory with calloc
it all maps to same physical page which is initialized to zero. When any of the pages of the allocated memory is written into a physical page is allocated. This is often used to make HUGE hash tables, for example since the parts of hash which are empty aren't backed by any extra memory (pages); they happily point to the single zero-initialized page, which can be even shared between processes.
Any write to virtual address is mapped to a page, if that page is the zero-page, another physical page is allocated, the zero page is copied there and the control flow is returned to the client process. This works same way memory mapped files, virtual memory, etc. work.. it uses paging.
Here is one optimization story about the topic: http://blogs.fau.de/hager/2007/05/08/benchmarking-fun-with-calloc-and-zero-pages/
I faced same issue apply all possible solution but finally this solve my problem
export class AppRoutingModule {
constructor(private router: Router) {
this.router.errorHandler = (error: any) => {
this.router.navigate(['404']); // or redirect to default route
}
}
}
Hope this will help you.
SELECT *
FROM LogRequests
WHERE cast(dateX as date) between '2014-05-09' and '2014-05-10';
This will select all the data between the 2 dates
UPDATE Table SET Column = REPLACE(Column, char(9), '')
Your "application/xrds+xml"
was giving me issues, I was receiving a Content-Length of 0 (no response).
After removing that, you can access the response using response.GetResponseStream()
.
HttpWebRequest request = WebRequest.Create("http://google.com") as HttpWebRequest;
//request.Accept = "application/xrds+xml";
HttpWebResponse response = (HttpWebResponse)request.GetResponse();
WebHeaderCollection header = response.Headers;
var encoding = ASCIIEncoding.ASCII;
using (var reader = new System.IO.StreamReader(response.GetResponseStream(), encoding))
{
string responseText = reader.ReadToEnd();
}
A pointer is just a container for an address. On a 32 bit machine, your address range is 32 bits, so a pointer will always be 4 bytes. On a 64 bit machine were you have an address range of 64 bits, a pointer will be 8 bytes.
When creating a new project - Maven - Java application in Netbeans the IDE is not recognizing the Main class on 1st class entry. (in Step 8 below we see no classes).
When first a generic class is created and then the Main class is created Netbeans is registering the Main class and the app could be run and debugged.
Steps that worked for me:
Hope this works for others as well.
If I read your question carefully, you ask to "grep to search the current directory for any and all files containing the string "hello" and display only .h and .cc files". So to meet your precise requirements here is my submission:
This displays the file names:
grep -lR hello * | egrep '(cc|h)$'
...and this display the file names and contents:
grep hello `grep -lR hello * | egrep '(cc|h)$'`
when I generate sha1 key using android studio
Gradle -> Tasks -> android-> signingReport
and double click
That sha1 key is worked in debug mode but not worked when i build singed APK
so I generated sha 1 key using cmd it work
example
C:\>cd C:\Program Files\Java\jdk1.8.0_121\bin
and type
keytool -exportcert -keystore {path of sign jks key } -list -v
example
keytool -exportcert -keystore F:\testkey\damithk.jks -list -v
As others have said, the style you're after is actually just the Mac OS checkbox style, so it will look radically different on other devices.
In fact both screenshots you linked show what checkboxes look like on Mac OS in Chrome, the grey one is shown at non-100% zoom levels.
An alternative to 'LOAD DATA' is available in which the data will not be moved from your existing source location to hive data warehouse location.
You can use ALTER TABLE command with 'LOCATION' option. Here is below required command
ALTER TABLE table_name ADD PARTITION (date_col='2017-02-07') LOCATION 'hdfs/path/to/location/'
The only condition here is, the location should be a directory instead of file.
Hope this will solve the problem.
Here's the NoCache
attribute proposed by mattytommo, simplified by using the information from Chris Moschini's answer:
[AttributeUsage(AttributeTargets.Class | AttributeTargets.Method)]
public sealed class NoCacheAttribute : OutputCacheAttribute
{
public NoCacheAttribute()
{
this.Duration = 0;
}
}
If you want to modify this I'd go with either of the following:
List<string[]> results;
-- or --
List<List<string>> results;
depending on your needs...
Since noone provided an answer quite like mine, I am going to post it here.
It is a robust class that can easily convert back and forth between json str
and dict
that I have copied from my answer to another question:
import json
class PyJSON(object):
def __init__(self, d):
if type(d) is str:
d = json.loads(d)
self.from_dict(d)
def from_dict(self, d):
self.__dict__ = {}
for key, value in d.items():
if type(value) is dict:
value = PyJSON(value)
self.__dict__[key] = value
def to_dict(self):
d = {}
for key, value in self.__dict__.items():
if type(value) is PyJSON:
value = value.to_dict()
d[key] = value
return d
def __repr__(self):
return str(self.to_dict())
def __setitem__(self, key, value):
self.__dict__[key] = value
def __getitem__(self, key):
return self.__dict__[key]
json_str = """... json string ..."""
py_json = PyJSON(json_str)
Inserting data into the middle of a text file is not a simple task. If possible, you should append it to the end of your file.
The easiest way to append data some text file is to use build-in fs.appendFile(filename, data[, options], callback)
function from fs
module:
var fs = require('fs')
fs.appendFile('log.txt', 'new data', function (err) {
if (err) {
// append failed
} else {
// done
}
})
But if you want to write data to log file several times, then it'll be best to use fs.createWriteStream(path[, options])
function instead:
var fs = require('fs')
var logger = fs.createWriteStream('log.txt', {
flags: 'a' // 'a' means appending (old data will be preserved)
})
logger.write('some data') // append string to your file
logger.write('more data') // again
logger.write('and more') // again
Node will keep appending new data to your file every time you'll call .write
, until your application will be closed, or until you'll manually close the stream calling .end
:
logger.end() // close string
Add this:
tools:replace="android:appComponentFactory"
android:appComponentFactory="whateverString"
to your manifest application
<application
android:icon="@mipmap/ic_launcher"
android:label="@string/app_name"
android:roundIcon="@mipmap/ic_launcher_round"
tools:replace="android:appComponentFactory"
android:appComponentFactory="whateverString">
hope it helps
You can use the Oracle Data Modeler to create auto incrementing surrogate keys.
Step 1. - Create a Relational Diagram
You can first create a Logical Diagram and Engineer to create the Relational Diagram or you can straightaway create the Relational Diagram.
Add the entity (table) that required to have auto incremented PK, select the type of the PK as Integer.
Step 2. - Edit PK Column Property
Get the properties of the PK column. You can double click the name of the column or click on the 'Properties' button.
Column Properties dialog box appears.
Select the General Tab (Default Selection for the first time). Then select both the 'Auto Increment' and 'Identity Column' check boxes.
Step 3. - Additional Information
Additional information relating to the auto increment can be specified by selecting the 'Auto Increment' tab.
It is usually a good idea to mention the sequence name, so that it will be useful in PL/SQL.
Click OK (Apply) to the Column Properties dialog box.
Click OK (Apply) to the Table Properties dialog box.
Table appears in the Relational Diagram.
The other answers weren't working for me. Here's what I found at w3schools, assuming the div
has a height
and/or width
set.
All you need is height
and width
to exclude padding.
var height = document.getElementById('myDiv').style.height;
var width = document.getElementById('myDiv').style.width;
You downvoters: This answer has helped at least 5 people, judging by the upvotes I've received. If you don't like it, tell me why so I can fix it. That's my biggest pet peeve with downvotes; you rarely tell me why you downvote it.
What about Console.Readline();
?
you can take care of the first 3 items with slicing and head:
df[df.A>=4].head(1)
df[(df.A>=4)&(df.B>=3)].head(1)
df[(df.A>=4)&((df.B>=3) * (df.C>=2))].head(1)
The condition in case nothing comes back you can handle with a try or an if...
try:
output = df[df.A>=6].head(1)
assert len(output) == 1
except:
output = df.sort_values('A',ascending=False).head(1)
Local changes:
To create a stash "my_stash" with only the changes on file_C:
1. git add file_C
2. git stash save --keep-index temp_stash
3. git stash save my_stash
4. git stash pop stash@#{1}
Done.
You can use git status between the steps to see what is going on.
import os#must import this library
if os.path.exists('TwitterDB.csv'):
os.remove('TwitterDB.csv') #this deletes the file
else:
print("The file does not exist")#add this to prevent errors
I had a similar problem, and instead of overwriting my existing file using the different 'modes', I just deleted the file before using it again, so that it would be as if I was appending to a new file on each run of my code.
FIRST, if you want to be able to access man1.py from man1test.py AND manModules.py from man1.py, you need to properly setup your files as packages and modules.
Packages are a way of structuring Python’s module namespace by using “dotted module names”. For example, the module name
A.B
designates a submodule namedB
in a package namedA
....
When importing the package, Python searches through the directories on
sys.path
looking for the package subdirectory.The
__init__.py
files are required to make Python treat the directories as containing packages; this is done to prevent directories with a common name, such asstring
, from unintentionally hiding valid modules that occur later on the module search path.
You need to set it up to something like this:
man
|- __init__.py
|- Mans
|- __init__.py
|- man1.py
|- MansTest
|- __init.__.py
|- SoftLib
|- Soft
|- __init__.py
|- SoftWork
|- __init__.py
|- manModules.py
|- Unittests
|- __init__.py
|- man1test.py
SECOND, for the "ModuleNotFoundError: No module named 'Soft'
" error caused by from ...Mans import man1
in man1test.py, the documented solution to that is to add man1.py to sys.path
since Mans is outside the MansTest package. See The Module Search Path from the Python documentation. But if you don't want to modify sys.path
directly, you can also modify PYTHONPATH
:
sys.path
is initialized from these locations:
- The directory containing the input script (or the current directory when no file is specified).
PYTHONPATH
(a list of directory names, with the same syntax as the shell variablePATH
).- The installation-dependent default.
THIRD, for from ...MansTest.SoftLib import Soft
which you said "was to facilitate the aforementioned import statement in man1.py", that's now how imports work. If you want to import Soft.SoftLib in man1.py, you have to setup man1.py to find Soft.SoftLib and import it there directly.
With that said, here's how I got it to work.
man1.py:
from Soft.SoftWork.manModules import *
# no change to import statement but need to add Soft to PYTHONPATH
def foo():
print("called foo in man1.py")
print("foo call module1 from manModules: " + module1())
man1test.py
# no need for "from ...MansTest.SoftLib import Soft" to facilitate importing..
from ...Mans import man1
man1.foo()
manModules.py
def module1():
return "module1 in manModules"
Terminal output:
$ python3 -m man.MansTest.Unittests.man1test
Traceback (most recent call last):
...
from ...Mans import man1
File "/temp/man/Mans/man1.py", line 2, in <module>
from Soft.SoftWork.manModules import *
ModuleNotFoundError: No module named 'Soft'
$ PYTHONPATH=$PYTHONPATH:/temp/man/MansTest/SoftLib
$ export PYTHONPATH
$ echo $PYTHONPATH
:/temp/man/MansTest/SoftLib
$ python3 -m man.MansTest.Unittests.man1test
called foo in man1.py
foo called module1 from manModules: module1 in manModules
As a suggestion, maybe re-think the purpose of those SoftLib files. Is it some sort of "bridge" between man1.py and man1test.py? The way your files are setup right now, I don't think it's going to work as you expect it to be. Also, it's a bit confusing for the code-under-test (man1.py) to be importing stuff from under the test folder (MansTest).
Ctrl+Shift+F will format a file in Eclipse, breaking long lines into multiple lines and nicely word-wrapping comments. You can also highlight just a section of text and format that.
I realize this is not an automatic soft/hard word wrap like the other answers, but I don't think the question was asking for anything fancy.
Action is a delegate (pointer) to a method, that takes zero, one or more input parameters, but does not return anything.
Func is a delegate (pointer) to a method, that takes zero, one or more input parameters, and returns a value (or reference).
Predicate is a special kind of Func often used for comparisons.
Though widely used with Linq, Action and Func are concepts logically independent of Linq. C++ already contained the basic concept in form of typed function pointers.
Here is a small example for Action and Func without using Linq:
class Program
{
static void Main(string[] args)
{
Action<int> myAction = new Action<int>(DoSomething);
myAction(123); // Prints out "123"
// can be also called as myAction.Invoke(123);
Func<int, double> myFunc = new Func<int, double>(CalculateSomething);
Console.WriteLine(myFunc(5)); // Prints out "2.5"
}
static void DoSomething(int i)
{
Console.WriteLine(i);
}
static double CalculateSomething(int i)
{
return (double)i/2;
}
}
It helps to group multiple statements into a single one so that a function-like macro can actually be used as a function. Suppose you have:
#define FOO(n) foo(n);bar(n)
and you do:
void foobar(int n) {
if (n)
FOO(n);
}
then this expands to:
void foobar(int n) {
if (n)
foo(n);bar(n);
}
Notice that the second call bar(n)
is not part of the if
statement anymore.
Wrap both into do { } while(0)
, and you can also use the macro in an if
statement.
For floating point data, you can use the new ismembertol
function, which computes set membership with a specified tolerance. This is similar to the ismemberf
function found in the File Exchange except that it is now built-in to MATLAB. Example:
>> pi_estimate = 3.14159;
>> abs(pi_estimate - pi)
ans =
5.3590e-08
>> tol = 1e-7;
>> ismembertol(pi,pi_estimate,tol)
ans =
1
Just installed Android Studio v 0.8.1 beta and ran into the same problem targeting SDK 19.
Copied 19 from the adt-bundle to android-studio, changed build.gradle to:
compileSdkVersion 19 targetSdkVersion 19
then project -> app -> open module settings (aka project structure): change compile sdk version to 19.
Now works fine.
Through switch
case it's impossible.You can go with nested if statements.
if(number>=1 && number<=4){
//Do something
}else if(number>=5 && number<=9){
//Do something
}
The issue was indeed in package-lock.json
, and after replacing it with a working version from another branch it worked.
What's interesting is seeing the diff:
So there really is some integrity checksum in the package-lock.json
to verify that the file you are downloading hasn't been tampered with. It's just that somehow the integrity checksum was replaced in our package-lock.json
with a SHA1 instead of a SHA-512 checksum. I have no idea how this happened.
In case you don't have a working version in another branch. Consider the message
npm ERR! code EINTEGRITY
npm ERR!
sha512-MKiLiV+I1AA596t9w1sQJ8jkiSr5+ZKi0WKrYGUn6d1Fx+Ij4tIj+m2WMQSGczs5jZVxV339chE8iwk6F64wjA==
integrity checksum failed when using sha512: wanted
sha512-MKiLiV+I1AA596t9w1sQJ8jkiSr5+ZKi0WKrYGUn6d1Fx+Ij4tIj+m2WMQSGczs5jZVxV339chE8iwk6F64wjA==
but got
sha512-WXI95kpJrxw4Nnx8vVI90PuUhrQjnNgghBl5tn54rUNKZYbxv+4ACxUzPVpJEtWxKmeDwnQrzjc0C2bYmRJVKg==
. (65117 bytes)
Find the package by the first two checksums in package-lock.json
:
sha512-MKiLiV+I1AA596t9w1sQJ8jkiSr5+ZKi0WKrYGUn6d1Fx+Ij4tIj+m2WMQSGczs5jZVxV339chE8iwk6F64wjA==
and put the third checksum into its "integrity" field:
sha512-WXI95kpJrxw4Nnx8vVI90PuUhrQjnNgghBl5tn54rUNKZYbxv+4ACxUzPVpJEtWxKmeDwnQrzjc0C2bYmRJVKg==
A more detailed description is here.
You can change the class you are testing to use a Func<DateTime>
which will be passed through it's constructor parameters, so when you create instance of the class in real code, you can pass () => DateTime.UtcNow
to the Func<DateTime>
parameter, and on the test, you can pass the time you wish to test.
For example:
[TestMethod]
public void MyTestMethod()
{
var instance = new MyClass(() => DateTime.MinValue);
Assert.AreEqual(instance.MyMethod(), DateTime.MinValue);
}
public void RealWorldInitialization()
{
new MyClass(() => DateTime.UtcNow);
}
class MyClass
{
private readonly Func<DateTime> _utcTimeNow;
public MyClass(Func<DateTime> UtcTimeNow)
{
_utcTimeNow = UtcTimeNow;
}
public DateTime MyMethod()
{
return _utcTimeNow();
}
}
Per May 16th 2013, using XCode 4.6.2, I had to do the following to add a device (which I do not have physical access to) to the team provisioning profile:
Sometimes it takes a while before the certificate is updated and fetched from XCode.
Hope this helps new readers.
May be i am too much late here and question is already answered, but this may help those who still cannot find sdk location. Open eclipse, click window tab it will show a drop down menu, click preferences, in preferences window click Android, here u go Sdk location is right in front of u copy the address :)
I see 2 possible problems:
Problem 1
Solution: assign a callback function to the objects "onreadystatechange" -event and handle the data in that function
xmlhttp.onreadystatechange = callbackFunctionName;
Once the state has reached DONE (4), the response content is ready to be read.
Problem 2
Solution: Either use a try-catch for creating the correct object for correct browser ( ActiveXObject in IE) or use a framework, for example jQuery ajax-method
Note: if you decide to use jQuery ajax-method, you assign the callback-function with jqXHR.done()
This, strangely, can also be because of a missing package. Run pip to install all necessary packages:
pip install -r requirements.txt
autodiscover_tasks
wasn't picking up tasks that used missing packages.
I had the same problem. This works for me:
<style type="text/css">
div.parent {
position: relative;
}
img.child {
bottom: 0;
left: 0;
margin: auto;
position: absolute;
right: 0;
top: 0;
}
</style>
<div class="parent">
<img class="child">
</div>
There is no standard way to do this. You need to use 3rd party tools such as ApexSQL Restore or SQL Virtual Restore. These tools don’t really read the backup file directly. They get SQL Server to “think” of backup files as if these were live databases.
Break the file into 8192-byte chunks (or some other multiple of 128 bytes) and feed them to MD5 consecutively using update()
.
This takes advantage of the fact that MD5 has 128-byte digest blocks (8192 is 128×64). Since you're not reading the entire file into memory, this won't use much more than 8192 bytes of memory.
In Python 3.8+ you can do
import hashlib
with open("your_filename.txt", "rb") as f:
file_hash = hashlib.md5()
while chunk := f.read(8192):
file_hash.update(chunk)
print(file_hash.digest())
print(file_hash.hexdigest()) # to get a printable str instead of bytes
As far as I can tell, you don't necessarily need to specify the axis when using the filter function.
new = old.filter(['A','B','D'])
returns the same dataframe as
new = old.filter(['A','B','D'], axis=1)
The best explanation is here with diagrams:
While a forward proxy proxies on behalf of clients ( or requesting hosts ), a reverse proxy proxies on behalf of servers.
In effect, whereas a forward proxy hides the identities of clients, a reverse proxy hides the identities of servers.
If you never plan to delete elements from the list (since this requires changing the index of all elements after the deleted element), then you can use ConcurrentSkipListMap<Integer, T>
in place of ArrayList<T>
, e.g.
NavigableMap<Integer, T> map = new ConcurrentSkipListMap<>();
This will allow you to add items to the end of the "list" as follows, as long as there is only one writer thread (otherwise there is a race condition between map.size()
and map.put()
):
// Add item to end of the "list":
map.put(map.size(), item);
You can also obviously modify the value of any item in the "list" (i.e. the map) by simply calling map.put(index, item)
.
The average cost for putting items into the map or retrieving them by index is O(log(n)), and ConcurrentSkipListMap
is lock-free, which makes it significantly better than say Vector
(the old synchronized version of ArrayList
).
You can iterate back and forth through the "list" by using the methods of the NavigableMap
interface.
You could wrap all the above into a class that implements the List
interface, as long as you understand the race condition caveats (or you could synchronize just the writer methods) -- and you would need to throw an unsupported operation exception for the remove
methods. There's quite a bit of boilerplate needed to implement all the required methods, but here's a quick attempt at an implementation.
import java.util.Collection;
import java.util.Iterator;
import java.util.List;
import java.util.ListIterator;
import java.util.NavigableMap;
import java.util.Objects;
import java.util.Map.Entry;
import java.util.concurrent.ConcurrentSkipListMap;
public class ConcurrentAddOnlyList<V> implements List<V> {
private NavigableMap<Integer, V> map = new ConcurrentSkipListMap<>();
@Override
public int size() {
return map.size();
}
@Override
public boolean isEmpty() {
return map.isEmpty();
}
@Override
public boolean contains(Object o) {
return map.values().contains(o);
}
@Override
public Iterator<V> iterator() {
return map.values().iterator();
}
@Override
public Object[] toArray() {
return map.values().toArray();
}
@Override
public <T> T[] toArray(T[] a) {
return map.values().toArray(a);
}
@Override
public V get(int index) {
return map.get(index);
}
@Override
public boolean containsAll(Collection<?> c) {
return map.values().containsAll(c);
}
@Override
public int indexOf(Object o) {
for (Entry<Integer, V> ent : map.entrySet()) {
if (Objects.equals(ent.getValue(), o)) {
return ent.getKey();
}
}
return -1;
}
@Override
public int lastIndexOf(Object o) {
for (Entry<Integer, V> ent : map.descendingMap().entrySet()) {
if (Objects.equals(ent.getValue(), o)) {
return ent.getKey();
}
}
return -1;
}
@Override
public ListIterator<V> listIterator(int index) {
return new ListIterator<V>() {
private int currIdx = 0;
@Override
public boolean hasNext() {
return currIdx < map.size();
}
@Override
public V next() {
if (currIdx >= map.size()) {
throw new IllegalArgumentException(
"next() called at end of list");
}
return map.get(currIdx++);
}
@Override
public boolean hasPrevious() {
return currIdx > 0;
}
@Override
public V previous() {
if (currIdx <= 0) {
throw new IllegalArgumentException(
"previous() called at beginning of list");
}
return map.get(--currIdx);
}
@Override
public int nextIndex() {
return currIdx + 1;
}
@Override
public int previousIndex() {
return currIdx - 1;
}
@Override
public void remove() {
throw new UnsupportedOperationException();
}
@Override
public void set(V e) {
// Might change size of map if currIdx == map.size(),
// so need to synchronize
synchronized (map) {
map.put(currIdx, e);
}
}
@Override
public void add(V e) {
synchronized (map) {
// Insertion is not supported except at end of list
if (currIdx < map.size()) {
throw new UnsupportedOperationException();
}
map.put(currIdx++, e);
}
}
};
}
@Override
public ListIterator<V> listIterator() {
return listIterator(0);
}
@Override
public List<V> subList(int fromIndex, int toIndex) {
// TODO Auto-generated method stub
return null;
}
@Override
public boolean add(V e) {
synchronized (map) {
map.put(map.size(), e);
return true;
}
}
@Override
public boolean addAll(Collection<? extends V> c) {
synchronized (map) {
for (V val : c) {
add(val);
}
return true;
}
}
@Override
public V set(int index, V element) {
synchronized (map) {
if (index < 0 || index > map.size()) {
throw new IllegalArgumentException("Index out of range");
}
return map.put(index, element);
}
}
@Override
public void clear() {
synchronized (map) {
map.clear();
}
}
@Override
public synchronized void add(int index, V element) {
synchronized (map) {
if (index < map.size()) {
// Insertion is not supported except at end of list
throw new UnsupportedOperationException();
} else if (index < 0 || index > map.size()) {
throw new IllegalArgumentException("Index out of range");
}
// index == map.size()
add(element);
}
}
@Override
public synchronized boolean addAll(
int index, Collection<? extends V> c) {
synchronized (map) {
if (index < map.size()) {
// Insertion is not supported except at end of list
throw new UnsupportedOperationException();
} else if (index < 0 || index > map.size()) {
throw new IllegalArgumentException("Index out of range");
}
// index == map.size()
for (V val : c) {
add(val);
}
return true;
}
}
@Override
public boolean remove(Object o) {
throw new UnsupportedOperationException();
}
@Override
public V remove(int index) {
throw new UnsupportedOperationException();
}
@Override
public boolean removeAll(Collection<?> c) {
throw new UnsupportedOperationException();
}
@Override
public boolean retainAll(Collection<?> c) {
throw new UnsupportedOperationException();
}
}
Don't forget that even with the writer thread synchronization as shown above, you need to be careful not to run into race conditions that might cause you to drop items, if for example you try to iterate through a list in a reader thread while a writer thread is adding to the end of the list.
You can even use ConcurrentSkipListMap
as a double-ended list, as long as you don't need the key of each item to represent the actual position within the list (i.e. adding to the beginning of the list will assign items negative keys). (The same race condition caveat applies here, i.e. there should be only one writer thread.)
// Add item after last item in the "list":
map.put(map.isEmpty() ? 0 : map.lastKey() + 1, item);
// Add item before first item in the "list":
map.put(map.isEmpty() ? 0 : map.firstKey() - 1, item);
Use Set in Python
>>> a = [2,4]
>>> b = [1,4,3]
>>> set(a) - set(b)
set([2])
import re
re.sub(r'''(?i)\b((?:https?://|www\d{0,3}[.]|[a-z0-9.\-]+[.][a-z]{2,4}/)(?:[^\s()<>]+|\(([^\s()<>]+|(\([^\s()<>]+\)))*\))+(?:\(([^\s()<>]+|(\([^\s()<>]+\)))*\)|[^\s`!()\[\]{};:'".,<>?«»“”‘’]))''', " ", text)
As of mid-2019
Screenshot:
This error is usually observed when your machine is low on disk space. Steps to be followed to avoid this error message
Resetting the read-only index block on the index:
$ curl -X PUT -H "Content-Type: application/json" http://127.0.0.1:9200/_all/_settings -d '{"index.blocks.read_only_allow_delete": null}'
Response
${"acknowledged":true}
Updating the low watermark to at least 50 gigabytes free, a high watermark of at least 20 gigabytes free, and a flood stage watermark of 10 gigabytes free, and updating the information about the cluster every minute
Request
$curl -X PUT "http://127.0.0.1:9200/_cluster/settings?pretty" -H 'Content-Type: application/json' -d' { "transient": { "cluster.routing.allocation.disk.watermark.low": "50gb", "cluster.routing.allocation.disk.watermark.high": "20gb", "cluster.routing.allocation.disk.watermark.flood_stage": "10gb", "cluster.info.update.interval": "1m"}}'
Response
${
"acknowledged" : true,
"persistent" : { },
"transient" : {
"cluster" : {
"routing" : {
"allocation" : {
"disk" : {
"watermark" : {
"low" : "50gb",
"flood_stage" : "10gb",
"high" : "20gb"
}
}
}
},
"info" : {"update" : {"interval" : "1m"}}}}}
After running these two commands, you must run the first command again so that the index does not go again into read-only mode
Many people answered with jQuery
parent, but just to add on to that I wanted to share a quick snippet of code that I use for adding classes to my navs so I can add styling to li
's that only have sub-menus and not li
's that don't.
$("li ul").parent().addClass('has-sub');
Try using a return statement. It works best. It stops the function when the condition is met.
function anything() {
var get = document.getElementsByClassName("text ").value;
if (get == null) {
alert("Please put in your name");
}
return;
var random = Math.floor(Math.random() * 100) + 1;
console.log(random);
}
Java automatically interns String literals. This means that in many cases, the == operator appears to work for Strings in the same way that it does for ints or other primitive values.
Since interning is automatic for String literals, the intern()
method is to be used on Strings constructed with new String()
Using your example:
String s1 = "Rakesh";
String s2 = "Rakesh";
String s3 = "Rakesh".intern();
String s4 = new String("Rakesh");
String s5 = new String("Rakesh").intern();
if ( s1 == s2 ){
System.out.println("s1 and s2 are same"); // 1.
}
if ( s1 == s3 ){
System.out.println("s1 and s3 are same" ); // 2.
}
if ( s1 == s4 ){
System.out.println("s1 and s4 are same" ); // 3.
}
if ( s1 == s5 ){
System.out.println("s1 and s5 are same" ); // 4.
}
will return:
s1 and s2 are same
s1 and s3 are same
s1 and s5 are same
In all the cases besides of s4
variable, a value for which was explicitly created using new
operator and where intern
method was not used on it's result, it is a single immutable instance that's being returned JVM's string constant pool.
Refer to JavaTechniques "String Equality and Interning" for more information.
It Work for me if i use ChangeDetectorRef in Angular 9
@ViewChild('search', {static: false})
public searchElementRef: ElementRef;
constructor(private changeDetector: ChangeDetectorRef) {}
//then call this when this.display = true;
show() {
this.display = true;
this.changeDetector.detectChanges();
}
There's the dot notation and the bracket notation
myObj[a] = b;
This can be done with a HTTP Post request to the server:
HttpClient http = AndroidHttpClient.newInstance("MyApp");
HttpPost method = new HttpPost("http://url-to-server");
method.setEntity(new FileEntity(new File("path-to-file"), "application/octet-stream"));
HttpResponse response = http.execute(method);
$(this).value
is attempting to call the 'value' property of a jQuery object, which does not exist. Native JavaScript does have a 'value' property on certain HTML objects, but if you are operating on a jQuery object you must access the value by calling $(this).val()
.
You can use the Like
operator with a wildcard to determine whether a given substring exists in a string, for example:
If cell.Value Like "*Word1*" Then
'...
ElseIf cell.Value Like "*Word2*" Then
'...
End If
In this example the *
character in "*Word1*"
is a wildcard character which matches zero or more characters.
NOTE: The Like
operator is case-sensitive, so "Word1" Like "word1"
is false, more information can be found on this MSDN page.
For me, none of the offered solutions worked. It turns out that I was using different settings for migration (manage.py
) and running (wsgi.py
). Settings defined in manage.py
used a local database however a production database was used in wsgi.py
settings. Thus a production database was never migrated.
Using:
django-admin migrate
for migration proved to be better as you have to specify the settings used as here.
isn't the code:
var text = $('#listItem').clone().children().remove().end().text();
just becoming jQuery for jQuery's sake? When simple operations involve that many chained commands & that much (unnecessary) processing, perhaps it is time to write a jQuery extension:
(function ($) {
function elementText(el, separator) {
var textContents = [];
for(var chld = el.firstChild; chld; chld = chld.nextSibling) {
if (chld.nodeType == 3) {
textContents.push(chld.nodeValue);
}
}
return textContents.join(separator);
}
$.fn.textNotChild = function(elementSeparator, nodeSeparator) {
if (arguments.length<2){nodeSeparator="";}
if (arguments.length<1){elementSeparator="";}
return $.map(this, function(el){
return elementText(el,nodeSeparator);
}).join(elementSeparator);
}
} (jQuery));
to call:
var text = $('#listItem').textNotChild();
the arguments are in case a different scenario is encountered, such as
<li>some text<a>more text</a>again more</li>
<li>second text<a>more text</a>again more</li>
var text = $("li").textNotChild(".....","<break>");
text will have value:
some text<break>again more.....second text<break>again more
I had some git submodule misconfiguration. I went to repo's root and issued these commands on the directories that had .git
folders previously:
git rm --cached sub/directory/path -f
Then the directories appeared in git status
.
You may want to make a copy of your repo before trying this just in case.
Simply parsing the JSON and comparing the two objects is not enough because it wouldn't be the exact same object references (but might be the same values).
You need to do a deep equals.
From http://threebit.net/mail-archive/rails-spinoffs/msg06156.html - which seems the use jQuery.
Object.extend(Object, {
deepEquals: function(o1, o2) {
var k1 = Object.keys(o1).sort();
var k2 = Object.keys(o2).sort();
if (k1.length != k2.length) return false;
return k1.zip(k2, function(keyPair) {
if(typeof o1[keyPair[0]] == typeof o2[keyPair[1]] == "object"){
return deepEquals(o1[keyPair[0]], o2[keyPair[1]])
} else {
return o1[keyPair[0]] == o2[keyPair[1]];
}
}).all();
}
});
Usage:
var anObj = JSON.parse(jsonString1);
var anotherObj= JSON.parse(jsonString2);
if (Object.deepEquals(anObj, anotherObj))
...
I went round and round on this and it turned out to be improperly set default page. Hope this helps someone else avoid an hour of wasted time.
Make sure you have Sendmail installed in your server.
If you have checked your code and verified that there is nothing wrong there, go to /var/mail and check whether that folder is empty.
If it is empty, you will need to do a:
sudo apt-get install sendmail
if you are on an Ubuntu server.
Update for MySQL 8.0
Your sql-mode
will not have NO_AUTO_CREATE_USER
as it has been removed as mentioned here - how-to-set-sql-mode-in-my-cnf-in-mysql-8
[mysqld]
sql-mode = "STRICT_TRANS_TABLES,NO_ZERO_IN_DATE,NO_ZERO_DATE,ERROR_FOR_DIVISION_BY_ZERO,NO_ENGINE_SUBSTITUTION"
Also if someone doesn't have a my.cnf
file then they create a new one in /etc/my.cnf
and then add the above lines.
I use maven for my java builds which has a plugin called the maven assembly plugin.
It does what your asking, but like some of the other suggestions describe - essentially exploding all the dependent jars and recombining them into a single jar
As Yoni already mentioned, you probably deleted the project named "Servers" from your Project Explorer. If config files for the server still present on a file system, the quickest way to restore it will be Right Click in Project Explorer->Import->General->Existing Projects into Workspace, then select the root dir where Servers dir located, set checkbox near "Servers" and finally click Finish. If everything works as expected, you should see the 'Servers' project added to the Project Explorer view and your old config files will be there. Finally, save the tomcat configuration which you had open. You can startup your Tomcat server without errors now.
The question itself has already been addressed above. Just adding part of the default values.
As per http://docs.oracle.com/cd/E13150_01/jrockit_jvm/jrockit/jrdocs/refman/optionX.html
The default value of Xmx will depend on platform and amount of memory available in the system.
Yes you can, but you have to do it outside of the DOM and the order has to be right.
var scr = '<scr'+'ipt>alert("foo")</scr'+'ipt>';
window.onload = function(){
var n = document.createElement("div");
n.innerHTML = scr;
document.body.appendChild(n);
}
...will alert 'foo'. This won't work:
document.getElementById("myDiv").innerHTML = scr;
And even this won't work, because the node is inserted first:
var scr = '<scr'+'ipt>alert("foo")</scr'+'ipt>';
window.onload = function(){
var n = document.createElement("div");
document.body.appendChild(n);
n.innerHTML = scr;
}
since you only want the files, you don't need to treat it as a git repo.
rsync -rlp --exclude '.git' user@host:path/to/git/repo/ .
and this only works with local path and remote ssh/rsync path, it may not work if the remote server only provides git:// or https:// access.
You could use a css class too.
$('#hook').parent().parent().parent().siblings().addClass("class_name");
Good day!
Try:
if l[i]:
print 'Found element!'
else:
print 'Empty element.'
Example youtube iframe
<iframe id="video" src="https://www.youtube.com/embed/xNM7jEHgzg4" frameborder="0"></iframe>
The click to play HTML element
<div class="videoplay">Play</div>
jQuery code to play the Video
$('.videoplay').on('click', function() {
$("#video")[0].src += "?autoplay=1";
});
Thanks to https://codepen.io/martinwolf/pen/dyLAC
Why not set ON CASCADE DELETE on Foreign Key patron_info
.pid?
if the options are static, you could listen for the change event on your select box and add padding for each individual item
$('#id').change(function() {
var select = $('#id');
var val = $(this).val();
switch(val) {
case 'ValOne':
select.css('padding-left', '30px');
break;
case 'ValTwoLonger':
select.css('padding-left', '20px');
break;
default:
return;
}
});
**
unpacks dictionaries.
This
func(a=1, b=2, c=3)
is the same as
args = {'a': 1, 'b': 2, 'c':3}
func(**args)
It's useful if you have to construct parameters:
args = {'name': person.name}
if hasattr(person, "address"):
args["address"] = person.address
func(**args) # either expanded to func(name=person.name) or
# func(name=person.name, address=person.address)
def setstyle(**styles):
for key, value in styles.iteritems(): # styles is a regular dictionary
setattr(someobject, key, value)
This lets you use the function like this:
setstyle(color="red", bold=False)
I think 2 update calls should do
update VersionedFields
set Value = replace(value,'<iframe','<a><iframe')
update VersionedFields
set Value = replace(value,'> </iframe>','</a>')
Unbelievably, in 2019 with Android studio 3.3 (I don't know exact version, at least 3.3), it is possible to use double slash comment to xml.
But if you use double slash comment in xml, IDE shows warning.
<?xml version="1.0" encoding="utf-8"?>
<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="match_parent">
// this works
/* this works too */
/*
multi line comment
multi line comment
*/
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="Hello World! yeah"
app:layout_constraintBottom_toBottomOf="parent"
app:layout_constraintLeft_toLeftOf="parent"
app:layout_constraintRight_toRightOf="parent"
app:layout_constraintTop_toTopOf="parent" />
</android.support.constraint.ConstraintLayout>
I don't think there's a 'simple' solution. You'll probably need to use both the events onKeyUp and onChange so that you also catch when changes are made with the mouse. Every time your code is called you can store the value you've 'seen' on this.seenValue attached right to the field. This should make a little easier.
Günters answer is great, I just want to point out another way without using Observables.
Here we though have to remember that these objects are passed by reference, so if you want to do some work on the object in the child and not affect the parent object, I would suggest using Günther's solution. But if it doesn't matter, or actually is desired behavior, I would suggest the following.
@Injectable()
export class SharedService {
sharedNode = {
// properties
};
}
In your parent you can assign the value:
this.sharedService.sharedNode = this.node;
And in your children (AND parent), inject the shared Service in your constructor. Remember to provide the service at module level providers array if you want a singleton service all over the components in that module. Alternatively, just add the service in the providers array in the parent only, then the parent and child will share the same instance of service.
node: Node;
ngOnInit() {
this.node = this.sharedService.sharedNode;
}
And as newman kindly pointed, you can also have this.sharedService.sharedNode
in the html template or a getter:
get sharedNode(){
return this.sharedService.sharedNode;
}
Personally I stumbled on a similar error message in this scenario:
I created a folder that has been empty, so naturally as long as it is empty, typing git add *
will not take this empty folder in consideration. So when I tried to run git rm -r *
or simply git rm my_empty_folder/ -r,
I got that error message.
The solution is to simply remove it without git: rm -r my_empty_folder/
or create a data file within this folder and then add it (git add my_no_long_empty_folder
)
You can do a LEFT JOIN and assert the joined column is NULL.
Example:
SELECT * FROM employees a LEFT JOIN eotm_dyn b on (a.joinfield=b.joinfield) WHERE b.name IS NULL
Is better to use a validation to support versions pre Android N, example:
if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.N) {
imageUri = Uri.parse(filepath);
} else{
imageUri = Uri.fromFile(new File(filepath));
}
if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.N) {
ImageView.setImageURI(Uri.parse(new File("/sdcard/cats.jpg").toString()));
} else{
ImageView.setImageURI(Uri.fromFile(new File("/sdcard/cats.jpg")));
}
If you're running windows, fiddler is a great tool. It has a setting to simulate modem speed, and for someone who wants more control has a plugin to add latency to each request.
I prefer using a tool like this to putting latency code in my application as it is a much more realistic simulation, as well as not making me design or code the actual bits. The best code is code I don't have to write.
ADDED: This article at Pavel Donchev's blog on Software Technologies shows how to create custom simulated speeds: Limiting your Internet connection speed with Fiddler.
On Java 1.8 default TLS protocol is v1.2. On Java 1.6 and 1.7 default is obsoleted TLS1.0. I get this error on Java 1.8, because url use old TLS1.0 (like Your - You see ClientHello, TLSv1
). To resolve this error You need to use override defaults for Java 1.8.
System.setProperty("https.protocols", "TLSv1");
More info on the Oracle blog.
I needed to do a little bit of testing myself of a button component. These tests work for me ;-)
import { shallow } from "enzyme";
import * as React from "react";
import Button from "../button.component";
describe("Button Component Tests", () => {
it("Renders correctly in DOM", () => {
shallow(
<Button text="Test" />
);
});
it("Expects to find button HTML element in the DOM", () => {
const wrapper = shallow(<Button text="test"/>)
expect(wrapper.find('button')).toHaveLength(1);
});
it("Expects to find button HTML element with className test in the DOM", () => {
const wrapper = shallow(<Button className="test" text="test"/>)
expect(wrapper.find('button.test')).toHaveLength(1);
});
it("Expects to run onClick function when button is pressed in the DOM", () => {
const mockCallBackClick = jest.fn();
const wrapper = shallow(<Button onClick={mockCallBackClick} className="test" text="test"/>);
wrapper.find('button').simulate('click');
expect(mockCallBackClick.mock.calls.length).toEqual(1);
});
});
For those Who Still Need This Here Is The Solution
$(function(){_x000D_
var t;_x000D_
document.addEventListener('scroll',function(e){_x000D_
clearTimeout(t);_x000D_
checkScroll();_x000D_
});_x000D_
_x000D_
function checkScroll(){_x000D_
t = setTimeout(function(){_x000D_
alert('Done Scrolling');_x000D_
},500); /* You can increase or reduse timer */_x000D_
}_x000D_
});
_x000D_
Use setTimeout()
:
var delayInMilliseconds = 1000; //1 second
setTimeout(function() {
//your code to be executed after 1 second
}, delayInMilliseconds);
If you want to do it without setTimeout
: Refer to this question.
I recommend setting the display options inside a context manager so that it only affects a single output. I usually prefer "pretty" html-output, and define a function force_show_all(df)
for displaying the DataFrame df
:
from IPython.core.display import display, HTML
def force_show_all(df):
with pd.option_context('display.max_rows', None, 'display.max_columns', None, 'display.width', None):
display(HTML(df.to_html()))
# ... now when you're ready to fully display df:
force_show_all(df)
As others have mentioned, please be cautious to only call this on a reasonably-sized dataframe.
Here's an example using underscore functions.
var exampleArray = [{name: 'moe', age: 40}, {name: 'larry', age: 50}, {name: 'curly', age: 60}];
var finalArray = _.compact(_.pluck(exampleArray,"name")).join(",");
Final output would be "moe,larry,curly"