First install pygments
then
echo '<some json>' | python -m json.tool | pygmentize -l json
If anyone want to use only number from 0 to 9 with imeOptions
enable then use below line in your EditText
android:inputType="number|none"
This will only allow number and if you click on done/next button of keyboard your focus will move to next field.
Sync, Clean, Rebuild and Invalidate Cache and Restart
None of them worked for me.
I have deleted the APK and output.json files in the release folder and debug folder and then tried sync, clean, and build, then it worked fine.
OR simply Delete folder which has the apk and output.json file (in case of debug/ release)
You can use Symbol
var say = Symbol()
function Cat(){
this[say]() // call private methos
}
Cat.prototype[say] = function(){ alert('im a private') }
P.S. alexpods is not correct. he get protect rather than private, since inheritance is a name conflict
Actually you can use var say = String(Math.random())
instead Symbol
IN ES6:
var say = Symbol()
class Cat {
constructor(){
this[say]() // call private
}
[say](){
alert('im private')
}
}
The bind function creates a new function with the same function body as the function it is calling .It is called with the this argument .why we use bind fun. : when every time a new instance is created and we have to use first initial instance then we use bind fun.We can't override the bind fun.simply it stores the initial object of the class.
setInterval(this.animate_to.bind(this), 1000/this.difference);
Another option, if you need to sign the executable on a Linux box is to use signcode from the Mono project tools. It is supported on Ubuntu.
Sam's answer gives the reason that default arguments are preferable for constructors rather than overloading. I just want to add that C++-0x will allow delegation from one constructor to another, thereby removing the need for defaults.
PHP does not know these Unicode escape sequences. But as unknown escape sequences remain unaffected, you can write your own function that converts such Unicode escape sequences:
function unicodeString($str, $encoding=null) {
if (is_null($encoding)) $encoding = ini_get('mbstring.internal_encoding');
return preg_replace_callback('/\\\\u([0-9a-fA-F]{4})/u', create_function('$match', 'return mb_convert_encoding(pack("H*", $match[1]), '.var_export($encoding, true).', "UTF-16BE");'), $str);
}
Or with an anonymous function expression instead of create_function
:
function unicodeString($str, $encoding=null) {
if (is_null($encoding)) $encoding = ini_get('mbstring.internal_encoding');
return preg_replace_callback('/\\\\u([0-9a-fA-F]{4})/u', function($match) use ($encoding) {
return mb_convert_encoding(pack('H*', $match[1]), $encoding, 'UTF-16BE');
}, $str);
}
Its usage:
$str = unicodeString("\u1000");
You could always roll your own. I'm getting rid of Crystal Reports in our project because currently, we can't update our old reports without upgrading everyone to XP, because we develop in VS 2008, and the new CR doesn't support Win2K. Also, CR takes about 30 seconds to build and load the report, mine is instantaneous.
I wrote my own XML serializer, and I build custom objects that are populated from List<T>s, DataTables, etc..., serialize the object, load it into an XmlDocument, append an XSLT stylesheet, and write it to a directory containing that XSLT file and any CSS and images. The XSLT file then transforms it to HTML/CSS when the XML file is opened in the user's browser.
I could also probably load it into a WebBrowser control and use one of the free PDF libraries to convert it to PDF and print it. See these threads for more details:
First you may check query
when the target column is type bool
(PS: about how to use it please check link )
df.query('BoolCol')
Out[123]:
BoolCol
10 True
40 True
50 True
After we filter the original df by the Boolean column we can pick the index .
df=df.query('BoolCol')
df.index
Out[125]: Int64Index([10, 40, 50], dtype='int64')
Also pandas have nonzero
, we just select the position of True
row and using it slice the DataFrame
or index
df.index[df.BoolCol.nonzero()[0]]
Out[128]: Int64Index([10, 40, 50], dtype='int64')
In addittion, you can do in a Fragment (for example when getting server data failed):
getView().setVisibility(View.GONE);
From GNU Make error appendix, as you see this is not a Make error but an error coming from gcc.
‘[foo] Error NN’ ‘[foo] signal description’ These errors are not really make errors at all. They mean that a program that make invoked as part of a recipe returned a non-0 error code (‘Error NN’), which make interprets as failure, or it exited in some other abnormal fashion (with a signal of some type). See Errors in Recipes. If no *** is attached to the message, then the subprocess failed but the rule in the makefile was prefixed with the - special character, so make ignored the error.
So in order to attack the problem, the error message from gcc is required. Paste the command in the Makefile directly to the command line and see what gcc says. For more details on Make errors click here.
this in your callback function refers to the clicked element.
$(".addressClick").click(function () {
var addressValue = $(this).attr("href");
alert(addressValue );
});
OutputStream is an abstract class that represents writing output. There are many different OutputStream classes, and they write out to certain things (like the screen, or Files, or byte arrays, or network connections, or etc). InputStream classes access the same things, but they read data in from them.
Here is a good basic example of using FileOutputStream and FileInputStream to write data to a file, then read it back in.
I really like the solution proposed by @Brian Diggs. However, in my case, I create the line plots in a loop rather than giving them explicitly because I do not know apriori how many plots I will have. When I tried to adapt the @Brian's code I faced some problems with handling the colors correctly. Turned out I needed to modify the aesthetic functions. In case someone has the same problem, here is the code that worked for me.
I used the same data frame as @Brian:
data <- structure(list(month = structure(c(1317452400, 1317538800, 1317625200, 1317711600,
1317798000, 1317884400, 1317970800, 1318057200,
1318143600, 1318230000, 1318316400, 1318402800,
1318489200, 1318575600, 1318662000, 1318748400,
1318834800, 1318921200, 1319007600, 1319094000),
class = c("POSIXct", "POSIXt"), tzone = ""),
TempMax = c(26.58, 27.78, 27.9, 27.44, 30.9, 30.44, 27.57, 25.71,
25.98, 26.84, 33.58, 30.7, 31.3, 27.18, 26.58, 26.18,
25.19, 24.19, 27.65, 23.92),
TempMed = c(22.88, 22.87, 22.41, 21.63, 22.43, 22.29, 21.89, 20.52,
19.71, 20.73, 23.51, 23.13, 22.95, 21.95, 21.91, 20.72,
20.45, 19.42, 19.97, 19.61),
TempMin = c(19.34, 19.14, 18.34, 17.49, 16.75, 16.75, 16.88, 16.82,
14.82, 16.01, 16.88, 17.55, 16.75, 17.22, 19.01, 16.95,
17.55, 15.21, 14.22, 16.42)),
.Names = c("month", "TempMax", "TempMed", "TempMin"),
row.names = c(NA, 20L), class = "data.frame")
In my case, I generate my.cols
and my.names
dynamically, but I don't want to make things unnecessarily complicated so I give them explicitly here. These three lines make the ordering of the legend and assigning colors easier.
my.cols <- heat.colors(3, alpha=1)
my.names <- c("TempMin", "TempMed", "TempMax")
names(my.cols) <- my.names
And here is the plot:
p <- ggplot(data, aes(x = month))
for (i in 1:3){
p <- p + geom_line(aes_(y = as.name(names(data[i+1])), colour =
colnames(data[i+1])))#as.character(my.names[i])))
}
p + scale_colour_manual("",
breaks = as.character(my.names),
values = my.cols)
p
There is a potential case where the compiler can make a performance optimization based on the presence of the readonly keyword.
This only applies if the read-only field is also marked as static. In that case, the JIT compiler can assume that this static field will never change. The JIT compiler can take this into account when compiling the methods of the class.
A typical example: your class could have a static read-only IsDebugLoggingEnabled field that is initialized in the constructor (e.g. based on a configuration file). Once the actual methods are JIT-compiled, the compiler may omit whole parts of the code when debug logging is not enabled.
I have not checked if this optimization is actually implemented in the current version of the JIT compiler, so this is just speculation.
For same error code i had quite different reason, I'm sharing here to help
I had web api action like below
public IHttpActionResult GetBooks (int id)
I changed the method to accept two parameters category and author so i changed the parameters as below, i also put the attribute [Httppost]
public IHttpActionResult GetBooks (int category, int author)
I also changed ajax options like below and at this point i start getting error 405 method not allowed
var options = {
url: '/api/books/GetBooks',
type: 'POST',
dataType: 'json',
cache: false,
traditional: true,
data: {
category: 1,
author: 15
}
}
When i created class for web api action parameters like below error was gone
public class BookParam
{
public int Category { get; set; }
public int Author { get; set; }
}
public IHttpActionResult GetBooks (BookParam param)
Here is how I did it to upload the excel files:
Directory structure:
app
|-----uploadcomponent
|-----uploadcomponent.module.ts
|-----uploadcomponent.html
|-----app.module.ts
|-----app.component.ts
|-----app.service.ts
uploadcomponent.html
<div>
<form [formGroup]="form" (ngSubmit)="onSubmit()">
<input type="file" name="profile" enctype="multipart/form-data" accept=".xlsm,application/msexcel" (change)="onChange($event)" />
<button type="submit">Upload Template</button>
<button id="delete_button" class="delete_button" type="reset"><i class="fa fa-trash"></i></button>
</form>
</div>
uploadcomponent.ts
import { FormBuilder, FormGroup, ReactiveFormsModule } from '@angular/forms';
import { Component, OnInit } from '@angular/core';
....
export class UploadComponent implements OnInit {
form: FormGroup;
constructor(private formBuilder: FormBuilder, private uploadService: AppService) {}
ngOnInit() {
this.form = this.formBuilder.group({
profile: ['']
});
}
onChange(event) {
if (event.target.files.length > 0) {
const file = event.target.files[0];
this.form.get('profile').setValue(file);
console.log(this.form.get('profile').value)
}
}
onSubmit() {
const formData = new FormData();
formData.append('file', this.form.get('profile').value);
this.uploadService.upload(formData).subscribe(
(res) => {
this.response = res;
console.log(res);
},
(err) => {
console.log(err);
});
}
}
app.service.ts
upload(formData) {
const endpoint = this.service_url+'upload/';
const httpOptions = headers: new HttpHeaders({ <<<< Changes are here
'Authorization': 'token xxxxxxx'})
};
return this.http.post(endpoint, formData, httpOptions);
}
In Backend I use DJango REST Framework.
models.py
from __future__ import unicode_literals
from django.db import models
from django.db import connection
from django_mysql.models import JSONField, Model
import uuid
import os
def change_filename(instance, filename):
extension = filename.split('.')[-1]
file_name = os.path.splitext(filename)[0]
uuid_name = uuid.uuid4()
return file_name+"_"+str(uuid_name)+"."+extension
class UploadTemplate (Model):
id = models.AutoField(primary_key=True)
file = models.FileField(blank=False, null=False, upload_to=change_filename)
def __str__(self):
return str(self.file.name)
views.py.
class UploadView(APIView):
serializer_class = UploadSerializer
parser_classes = [MultiPartParser]
def get_queryset(self):
queryset = UploadTemplate.objects.all()
return queryset
def post(self, request, *args, **kwargs):
file_serializer = UploadSerializer(data=request.data)
status = None
message = None
if file_serializer.is_valid():
file_serializer.save()
status = "Success"
message = "Success"
else:
status = "Failure"
message = "Failure!"
content = {'status': status, 'message': message}
return Response(content)
serializers.py.
from uploadtemplate.models import UploadTemplate
from rest_framework import serializers
class UploadSerializer(serializers.ModelSerializer):
class Meta:
model = UploadTemplate
fields = '__all__'
urls.py.
router.register(r'uploadtemplate', uploadtemplateviews.UploadTemplateView,
base_name='UploadTemplate')
urlpatterns = [
....
url(r'upload/', uploadtemplateviews.UploadTemplateView.as_view()),
] + static(settings.STATIC_URL, document_root=settings.STATIC_ROOT)
if settings.DEBUG:
urlpatterns += static(settings.MEDIA_URL, document_root=settings.MEDIA_ROOT)
MEDIA_URL and MEDIA_ROOT is defined in settings.py of the project.
Thanks!
var that = this; // this is a form
(new Thread(()=> {
var action= new Action(() => {
something
}));
if(!that.IsDisposed)
{
if(that.IsHandleCreated)
{
//if (that.InvokeRequired)
that.BeginInvoke(action);
//else
// action.Invoke();
}
else
that.HandleCreated+=(sender,event) => {
action.Invoke();
};
}
})).Start();
The approach of running diff -qr old/ new/
has one major drawback: it may miss files in newly created directories. E.g. in the example below the file data/pages/playground/playground.txt
is not in the output of diff -qr old/ new/
whereas the directory data/pages/playground/
is (search for playground.txt in your browser to quickly compare). I also posted the following solution on Unix & Linux Stack Exchange, but I'll copy it here as well:
To create a list of new or modified files programmatically the best solution I could come up with is using rsync, sort, and uniq:
(rsync -rcn --out-format="%n" old/ new/ && rsync -rcn --out-format="%n" new/ old/) | sort | uniq
Let me explain with this example: we want to compare two dokuwiki releases to see which files were changed and which ones were newly created.
We fetch the tars with wget and extract them into the directories old/
and new/
:
wget http://download.dokuwiki.org/src/dokuwiki/dokuwiki-2014-09-29d.tgz
wget http://download.dokuwiki.org/src/dokuwiki/dokuwiki-2014-09-29.tgz
mkdir old && tar xzf dokuwiki-2014-09-29.tgz -C old --strip-components=1
mkdir new && tar xzf dokuwiki-2014-09-29d.tgz -C new --strip-components=1
Running rsync one way might miss newly created files as the comparison of rsync and diff shows here:
rsync -rcn --out-format="%n" old/ new/
yields the following output:
VERSION
doku.php
conf/mime.conf
inc/auth.php
inc/lang/no/lang.php
lib/plugins/acl/remote.php
lib/plugins/authplain/auth.php
lib/plugins/usermanager/admin.php
Running rsync only in one direction misses the newly created files and the other way round would miss deleted files, compare the output of diff:
diff -qr old/ new/
yields the following output:
Files old/VERSION and new/VERSION differ
Files old/conf/mime.conf and new/conf/mime.conf differ
Only in new/data/pages: playground
Files old/doku.php and new/doku.php differ
Files old/inc/auth.php and new/inc/auth.php differ
Files old/inc/lang/no/lang.php and new/inc/lang/no/lang.php differ
Files old/lib/plugins/acl/remote.php and new/lib/plugins/acl/remote.php differ
Files old/lib/plugins/authplain/auth.php and new/lib/plugins/authplain/auth.php differ
Files old/lib/plugins/usermanager/admin.php and new/lib/plugins/usermanager/admin.php differ
Running rsync both ways and sorting the output to remove duplicates reveals that the directory data/pages/playground/
and the file data/pages/playground/playground.txt
were missed initially:
(rsync -rcn --out-format="%n" old/ new/ && rsync -rcn --out-format="%n" new/ old/) | sort | uniq
yields the following output:
VERSION
conf/mime.conf
data/pages/playground/
data/pages/playground/playground.txt
doku.php
inc/auth.php
inc/lang/no/lang.php
lib/plugins/acl/remote.php
lib/plugins/authplain/auth.php
lib/plugins/usermanager/admin.php
rsync
is run with theses arguments:
-r
to "recurse into directories", -c
to also compare files of identical size and only "skip based on checksum, not mod-time & size", -n
to "perform a trial run with no changes made", and--out-format="%n"
to "output updates using the specified FORMAT", which is "%n" here for the file name onlyThe output (list of files) of rsync
in both directions is combined and sorted using sort
, and this sorted list is then condensed by removing all duplicates with uniq
PHPClasses have a nice class for this named PHP Working Days. You can check this class.
Replacing:
$_SERVER["REMOTE_ADDR"];
With:
$_SERVER["HTTP_X_REAL_IP"];
Worked for me.
See this article on alistapart.com. (Ed: The article has been updated since originally linked)
self
is being used to maintain a reference to the original this
even as the context is changing. It's a technique often used in event handlers (especially in closures).
Edit: Note that using self
is now discouraged as window.self
exists and has the potential to cause errors if you are not careful.
What you call the variable doesn't particularly matter. var that = this;
is fine, but there's nothing magic about the name.
Functions declared inside a context (e.g. callbacks, closures) will have access to the variables/function declared in the same scope or above.
For example, a simple event callback:
function MyConstructor(options) {_x000D_
let that = this;_x000D_
_x000D_
this.someprop = options.someprop || 'defaultprop';_x000D_
_x000D_
document.addEventListener('click', (event) => {_x000D_
alert(that.someprop);_x000D_
});_x000D_
}_x000D_
_x000D_
new MyConstructor({_x000D_
someprop: "Hello World"_x000D_
});
_x000D_
It's worth noting that the QuerySet.values_list()
method doesn't actually return a list, but an object of type django.db.models.query.ValuesListQuerySet
, in order to maintain Django's goal of lazy evaluation, i.e. the DB query required to generate the 'list' isn't actually performed until the object is evaluated.
Somewhat irritatingly, though, this object has a custom __repr__
method which makes it look like a list when printed out, so it's not always obvious that the object isn't really a list.
The exception in the question is caused by the fact that custom objects cannot be serialized in JSON, so you'll have to convert it to a list first, with...
my_list = list(self.get_queryset().values_list('code', flat=True))
...then you can convert it to JSON with...
json_data = json.dumps(my_list)
You'll also have to place the resulting JSON data in an HttpResponse
object, which, apparently, should have a Content-Type
of application/json
, with...
response = HttpResponse(json_data, content_type='application/json')
...which you can then return from your function.
Take a look at the formats in ?strptime
R> foo <- factor("1/15/2006 0:00:00")
R> foo <- as.Date(foo, format = "%m/%d/%Y %H:%M:%S")
R> foo
[1] "2006-01-15"
R> class(foo)
[1] "Date"
Note that this will work even if foo
starts out as a character. It will also work if using other date formats (as.POSIXlt
, as.POSIXct
).
If you just want to pass a std::string
to a function that needs const char*
you can use
std::string str;
const char * c = str.c_str();
If you want to get a writable copy, like char *
, you can do that with this:
std::string str;
char * writable = new char[str.size() + 1];
std::copy(str.begin(), str.end(), writable);
writable[str.size()] = '\0'; // don't forget the terminating 0
// don't forget to free the string after finished using it
delete[] writable;
Edit: Notice that the above is not exception safe. If anything between the new
call and the delete
call throws, you will leak memory, as nothing will call delete
for you automatically. There are two immediate ways to solve this.
boost::scoped_array
will delete the memory for you upon going out of scope:
std::string str;
boost::scoped_array<char> writable(new char[str.size() + 1]);
std::copy(str.begin(), str.end(), writable.get());
writable[str.size()] = '\0'; // don't forget the terminating 0
// get the char* using writable.get()
// memory is automatically freed if the smart pointer goes
// out of scope
This is the standard way (does not require any external library). You use std::vector
, which completely manages the memory for you.
std::string str;
std::vector<char> writable(str.begin(), str.end());
writable.push_back('\0');
// get the char* using &writable[0] or &*writable.begin()
I got the same error and I fixed it in this manner:
I had to activate my virtual environment using the following command
source python2.7/bin/activate
Try numpy.array_split
.
From the documentation:
>>> x = np.arange(8.0)
>>> np.array_split(x, 3)
[array([ 0., 1., 2.]), array([ 3., 4., 5.]), array([ 6., 7.])]
Identical to numpy.split
, but won't raise an exception if the groups aren't equal length.
If number of chunks > len(array) you get blank arrays nested inside, to address that - if your split array is saved in a
, then you can remove empty arrays by:
[x for x in a if x.size > 0]
Just save that back in a
if you wish.
The correct way to do this is:
typedef void (*callback_function)(void); // type for conciseness
callback_function disconnectFunc; // variable to store function pointer type
void D::setDisconnectFunc(callback_function pFunc)
{
disconnectFunc = pFunc; // store
}
void D::disconnected()
{
disconnectFunc(); // call
connected = false;
}
This fiddle shows how
ul, li {
display:inline
}
Great references on lists and css here:
some times the solution up doesn't work so you d have properly to remove the in class and add the css display:none manually .
$("#modal").removeClass("in");
$("#modal").css("display","none");
Add this to your dependencies in build.gradle
:
dependencies {
implementation 'com.squareup.picasso:picasso:2.71828'
...
The latest version can be found here
Make sure you are connected to the Internet. When you sync Gradle, all related files will be added to your project
Take a look at your libraries folder, the library you just added should be in there.
A related (short-term) solution is to store your environment variables in a single file, with a predictable format, that can be sourced when starting a terminal and/or read into the notebook. For example, I have a file, .env
, that has my environment variable definitions in the format VARIABLE_NAME=VARIABLE_VALUE
(no blank lines or extra spaces). You can source this file in the .bashrc
or .bash_profile
files when beginning a new terminal session and you can read this into a notebook with something like,
import os
env_vars = !cat ../script/.env
for var in env_vars:
key, value = var.split('=')
os.environ[key] = value
I used a relative path to show that this .env
file can live anywhere and be referenced relative to the directory containing the notebook file. This also has the advantage of not displaying the variable values within your code anywhere.
A cookie is just another HTTP header. You can always set it while making a HTTP call with the apache library or with HTTPUrlConnection. Either way you should be able to read and set HTTP cookies in this fashion.
You can read this article for more information.
I can share my peace of code to demonstrate how easy you can make it.
public static String getServerResponseByHttpGet(String url, String token) {
try {
HttpClient client = new DefaultHttpClient();
HttpGet get = new HttpGet(url);
get.setHeader("Cookie", "PHPSESSID=" + token + ";");
Log.d(TAG, "Try to open => " + url);
HttpResponse httpResponse = client.execute(get);
int connectionStatusCode = httpResponse.getStatusLine().getStatusCode();
Log.d(TAG, "Connection code: " + connectionStatusCode + " for request: " + url);
HttpEntity entity = httpResponse.getEntity();
String serverResponse = EntityUtils.toString(entity);
Log.d(TAG, "Server response for request " + url + " => " + serverResponse);
if(!isStatusOk(connectionStatusCode))
return null;
return serverResponse;
} catch (UnsupportedEncodingException e) {
e.printStackTrace();
} catch (ClientProtocolException e) {
e.printStackTrace();
} catch (IOException e) {
e.printStackTrace();
} catch (IllegalArgumentException e) {
e.printStackTrace();
} catch (Exception e) {
e.printStackTrace();
}
return null;
}
I don't use the same version, but uninstall actions are the same: Looking for file uninstall-postgresql inside directory
/Library/PostgreSQL/9.6
then run it.
(Screenshot in macOS 10.13)
then
sudo rm -rf /Library/PostgreSQL/
to delete all unnecessary directory.
Try launching the Emulator from the command line as follows:
emulator -verbose -avd <AVD name>
This will give you detailed output and may show the error that's preventing the emulator from connecting to the Internet.
To change the end address property edit your wsdl file
<wsdl:definitions.......
<wsdl:service name="serviceMethodName">
<wsdl:port binding="tns:serviceMethodNameSoapBinding" name="serviceMethodName">
<soap:address location="http://service_end_point_adress"/>
</wsdl:port>
</wsdl:service>
</wsdl:definitions>
There is a whole Section in the docs called 16.3.3.4 Mapping the request body with the @RequestBody annotation. And one called 16.3.3.5 Mapping the response body with the @ResponseBody annotation. I suggest you consult those sections. Also relevant: @RequestBody
javadocs, @ResponseBody
javadocs
Usage examples would be something like this:
Using a JavaScript-library like JQuery, you would post a JSON-Object like this:
{ "firstName" : "Elmer", "lastName" : "Fudd" }
Your controller method would look like this:
// controller
@ResponseBody @RequestMapping("/description")
public Description getDescription(@RequestBody UserStats stats){
return new Description(stats.getFirstName() + " " + stats.getLastname() + " hates wacky wabbits");
}
// domain / value objects
public class UserStats{
private String firstName;
private String lastName;
// + getters, setters
}
public class Description{
private String description;
// + getters, setters, constructor
}
Now if you have Jackson on your classpath (and have an <mvc:annotation-driven>
setup), Spring would convert the incoming JSON to a UserStats object from the post body (because you added the @RequestBody
annotation) and it would serialize the returned object to JSON (because you added the @ResponseBody
annotation). So the Browser / Client would see this JSON result:
{ "description" : "Elmer Fudd hates wacky wabbits" }
See this previous answer of mine for a complete working example: https://stackoverflow.com/a/5908632/342852
Note: RequestBody / ResponseBody is of course not limited to JSON, both can handle multiple formats, including plain text and XML, but JSON is probably the most used format.
Ever since Spring 4.x, you usually won't use @ResponseBody
on method level, but rather @RestController
on class level, with the same effect.
Here is a quote from the official Spring MVC documentation:
@RestController
is a composed annotation that is itself meta-annotated with@Controller
and@ResponseBody
to indicate a controller whose every method inherits the type-level@ResponseBody
annotation and, therefore, writes directly to the response body versus view resolution and rendering with an HTML template.
The middle one writes to the pipeline. Write-Host
and Out-Host
writes to the console. 'echo' is an alias for Write-Output
which writes to the pipeline as well. The best way to write to the console would be using the Write-Host
cmdlet.
When an object is written to the pipeline it can be consumed by other commands in the chain. For example:
"hello world" | Do-Something
but this won't work since Write-Host
writes to the console, not to the pipeline (Do-Something will not get the string):
Write-Host "hello world" | Do-Something
Using jQuery from Angular2 is a breeze compared to ng1. If you are using TypeScript you could first reference jQuery typescript definition.
tsd install jquery --save
or
typings install dt~jquery --global --save
TypescriptDefinitions are not required since you could just use any
as the type for $
or jQuery
In your angular component you should reference a DOM element from the template using @ViewChild()
After the view has been initialized you can use the nativeElement
property of this object and pass to jQuery.
Declaring $
(or jQuery
) as JQueryStatic will give you a typed reference to jQuery.
import {bootstrap} from '@angular/platform-browser-dynamic';
import {Component, ViewChild, ElementRef, AfterViewInit} from '@angular/core';
declare var $:JQueryStatic;
@Component({
selector: 'ng-chosen',
template: `<select #selectElem>
<option *ngFor="#item of items" [value]="item" [selected]="item === selectedValue">{{item}} option</option>
</select>
<h4> {{selectedValue}}</h4>`
})
export class NgChosenComponent implements AfterViewInit {
@ViewChild('selectElem') el:ElementRef;
items = ['First', 'Second', 'Third'];
selectedValue = 'Second';
ngAfterViewInit() {
$(this.el.nativeElement)
.chosen()
.on('change', (e, args) => {
this.selectedValue = args.selected;
});
}
}
bootstrap(NgChosenComponent);
This example is available on plunker: http://plnkr.co/edit/Nq9LnK?p=preview
tslint will complain about chosen
not being a property on $, to fix this you can add a definition to the JQuery interface in your custom *.d.ts file
interface JQuery {
chosen(options?:any):JQuery;
}
I encountered a similar problem, and I used 2 flash drives as 'ReadyBoost'. The two drives gave additional 8GB boost of memory (for cache) and it solved the problem and also increased the speed of the system as a whole. To use Readyboost, right click on the drive, go to properties and select 'ReadyBoost' and select 'use this device' radio button and click apply or ok to configure.
The following cites the C11 standard (final draft).
6.3.1.2: When any scalar value is converted to _Bool, the result is 0 if the value compares equal to 0; otherwise, the result is 1.
bool
(mapped by stdbool.h
to the internal name _Bool
for C) itself is an unsigned integer type:
... The type _Bool and the unsigned integer types that correspond to the standard signed integer types are the standard unsigned integer types.
According to 6.2.5p2:
An object declared as type _Bool is large enough to store the values 0 and 1.
AFAIK these definitions are semantically identical to C++ - with the minor difference of the built-in(!) names. bool
for C++ and _Bool
for C.
Note that C does not use the term rvalues as C++ does. However, in C pointers are scalars, so assigning a pointer to a _Bool
behaves as in C++.
For SQL Server 2008 run:
EXEC sp_defaultlanguage 'username', 'british'
Stumbled across this today in a search for answers and I thought I'd add my version to the list (No pun intended). It utlises the null conditional operator of c#6.0
IEnumerable<Item> collection = GetTheCollection();
var index = collection
.Select((item,idx) => new { Item = item, Index = idx })
//or .FirstOrDefault(_ => _.Item.Prop == something)
.FirstOrDefault(_ => _.Item == itemToFind)?.Index ?? -1;
I've done some 'racing of the old horses' (testing) and for large collections (~100,000), worst case scenario that item you want is at the end, this is 2x faster than doing ToList().FindIndex()
. If the Item you want is in the middle its ~4x faster.
For smaller collections (~10,000) it seems to be only marginally faster
Heres how I tested it https://gist.github.com/insulind/16310945247fcf13ba186a45734f254e
To have the IT department selected, when the departments are loaded from tblDepartment table, use the following overloaded constructor of SelectList class. Notice that we are passing a value of 1 for selectedValue parameter.
ViewBag.Departments = new SelectList(db.Departments, "Id", "Name", "1");
After seeing this, I was interested in expanding on the provided answers by finding out which executes in the least amount of time, so I went through and checked some of the proposed answers with timeit
against two of the example strings:
string1 = 'Special $#! characters spaces 888323'
string2 = 'how much for the maple syrup? $20.99? That s ricidulous!!!'
'.join(e for e in string if e.isalnum())
string1
- Result: 10.7061979771string2
- Result: 7.78372597694import re
re.sub('[^A-Za-z0-9]+', '', string)
string1
- Result: 7.10785102844string2
- Result: 4.12814903259import re
re.sub('\W+','', string)
string1
- Result: 3.11899876595string2
- Result: 2.78014397621The above results are a product of the lowest returned result from an average of: repeat(3, 2000000)
Example 3 can be 3x faster than Example 1.
Public void ConfigureServices(IServiceCollection services)
{
services.AddScoped<IEventRepository, EventRepository>();
}
You forgot to add "services.AddScoped" in startup ConfigureServices
method.
Nested 'With' is not supported, but you can always use the second With as a subquery, for example:
WITH A AS (
--WITH B AS ( SELECT COUNT(1) AS _CT FROM C ) SELECT CASE _CT WHEN 1 THEN 1 ELSE 0 END FROM B --doesn't work
SELECT CASE WHEN count = 1 THEN 1 ELSE 0 END AS CT FROM (SELECT COUNT(1) AS count FROM dual)
union all
select 100 AS CT from dual
)
select CT FROM A
Use the system
function.
system("myfile.sh"); // myfile.sh should be chmod +x
import sys
!{sys.executable} -m pip install package_name
import sys
!{sys.executable} -m pip install kivy
Reference: https://docs.python.org/3.4/library/sys.html#sys.executable
In a rails 5.1 app, I use this core extension built on top of ActiveRecord::Type::Boolean
. It is working perfectly for me when I deserialize boolean from JSON string.
https://api.rubyonrails.org/classes/ActiveModel/Type/Boolean.html
# app/lib/core_extensions/string.rb
module CoreExtensions
module String
def to_bool
ActiveRecord::Type::Boolean.new.deserialize(downcase.strip)
end
end
end
initialize core extensions
# config/initializers/core_extensions.rb
String.include CoreExtensions::String
rspec
# spec/lib/core_extensions/string_spec.rb
describe CoreExtensions::String do
describe "#to_bool" do
%w[0 f F false FALSE False off OFF Off].each do |falsey_string|
it "converts #{falsey_string} to false" do
expect(falsey_string.to_bool).to eq(false)
end
end
end
end
The benefit of write-through to main memory is that it simplifies the design of the computer system. With write-through, the main memory always has an up-to-date copy of the line. So when a read is done, main memory can always reply with the requested data.
If write-back is used, sometimes the up-to-date data is in a processor cache, and sometimes it is in main memory. If the data is in a processor cache, then that processor must stop main memory from replying to the read request, because the main memory might have a stale copy of the data. This is more complicated than write-through.
Also, write-through can simplify the cache coherency protocol because it doesn't need the Modify state. The Modify state records that the cache must write back the cache line before it invalidates or evicts the line. In write-through a cache line can always be invalidated without writing back since memory already has an up-to-date copy of the line.
One more thing - on a write-back architecture software that writes to memory-mapped I/O registers must take extra steps to make sure that writes are immediately sent out of the cache. Otherwise writes are not visible outside the core until the line is read by another processor or the line is evicted.
To long from DateTime:
To DateTime from long:
ssh user@machine python < script.py - arg1 arg2
Because cat |
is usually not necessary
The best thing to do is to remove Node.js from the control panel. Once deleted download the desired version of Node.js and install it and it works.
One solution is to wrap it in a subquery
SELECT *
FROM
(
SELECT COUNT(column1),column1 FROM table GROUP BY column1
UNION ALL
SELECT COUNT(column2),column2 FROM table GROUP BY column2
UNION ALL
SELECT COUNT(column3),column3 FROM table GROUP BY column3
) s
var desired = stringToReplace.replace(/[^\w\s]/gi, '')
As was mentioned in the comments it's easier to do this as a whitelist - replace the characters which aren't in your safelist.
The caret (^
) character is the negation of the set [...]
, gi
say global and case-insensitive (the latter is a bit redundant but I wanted to mention it) and the safelist in this example is digits, word characters, underscores (\w
) and whitespace (\s
).
Strict Contextual Escaping can be disabled entirely, allowing you to inject html using ng-html-bind
. This is an unsafe option, but helpful when testing.
Example from the AngularJS documentation on $sce
:
angular.module('myAppWithSceDisabledmyApp', []).config(function($sceProvider) {
// Completely disable SCE. For demonstration purposes only!
// Do not use in new projects.
$sceProvider.enabled(false);
});
Attaching the above config section to your app will allow you inject html into ng-html-bind
, but as the doc remarks:
SCE gives you a lot of security benefits for little coding overhead. It will be much harder to take an SCE disabled application and either secure it on your own or enable SCE at a later stage. It might make sense to disable SCE for cases where you have a lot of existing code that was written before SCE was introduced and you're migrating them a module at a time.
You create the relationships the other way around; add foreign keys to the Person
type to create a Many-to-One relationship:
class Person(models.Model):
name = models.CharField(max_length=50)
birthday = models.DateField()
anniversary = models.ForeignKey(
Anniversary, on_delete=models.CASCADE)
address = models.ForeignKey(
Address, on_delete=models.CASCADE)
class Address(models.Model):
line1 = models.CharField(max_length=150)
line2 = models.CharField(max_length=150)
postalcode = models.CharField(max_length=10)
city = models.CharField(max_length=150)
country = models.CharField(max_length=150)
class Anniversary(models.Model):
date = models.DateField()
Any one person can only be connected to one address and one anniversary, but addresses and anniversaries can be referenced from multiple Person
entries.
Anniversary
and Address
objects will be given a reverse, backwards relationship too; by default it'll be called person_set
but you can configure a different name if you need to. See Following relationships "backward" in the queries documentation.
For Tomcat 8, I had to add the following line to catalina.properties for preventing jars scanned by Tomcat:
tomcat.util.scan.StandardJarScanFilter.jarsToSkip=jsp-api.jar,servlet-api.jar
Java converts Integer to int and back automatically (unless you are still with Java 1.4).
I've come across Flexi Auth (http://haseydesign.com/flexi-auth/). It looks very promising, and I've started using it. It has wonderfful features. Fully integrates with CI, and comes with two different library files, in which one is very heavy loaded with all the functions and the other one contains only the validations.
One of the best is that the newly registered member gets temporary access for a given amount of time on the site, until they click on the link from their email and activate.
you can go with sth like [^-]\d{4}$
: you prevent the minus sign -
to be before your 4 digits.
you can also use ^\d{4}$
with ^
to catch the beginning of the string. It depends on your scenario actually...
The assert computer statement is analogous to the statement make sure in English.
The MOUSEBUTTONDOWN
event occurs once when you click the mouse button and the MOUSEBUTTONUP
event occurs once when the mouse button is released. The pygame.event.Event()
object has two attributes that provide information about the mouse event. pos
is a tuple that stores the position that was clicked. button
stores the button that was clicked. Each mouse button is associated a value. For instance the value of the attributes is 1, 2, 3, 4, 5 for the left mouse button, middle mouse button, right mouse button, mouse wheel up respectively mouse wheel down. When multiple keys are pressed, multiple mouse button events occur. Further explanations can be found in the documentation of the module pygame.event
.
Use the rect
attribute of the pygame.sprite.Sprite
object and the collidepoint
method to see if the Sprite was clicked.
Pass the list of events to the update
method of the pygame.sprite.Group
so that you can process the events in the Sprite class:
class SpriteObject(pygame.sprite.Sprite):
# [...]
def update(self, event_list):
for event in event_list:
if event.type == pygame.MOUSEBUTTONDOWN:
if self.rect.collidepoint(event.pos):
# [...]
my_sprite = SpriteObject()
group = pygame.sprite.Group(my_sprite)
# [...]
run = True
while run:
event_list = pygame.event.get()
for event in event_list:
if event.type == pygame.QUIT:
run = False
group.update(event_list)
# [...]
Minimal example: repl.it/@Rabbid76/PyGame-MouseClick
import pygame
class SpriteObject(pygame.sprite.Sprite):
def __init__(self, x, y, color):
super().__init__()
self.original_image = pygame.Surface((50, 50), pygame.SRCALPHA)
pygame.draw.circle(self.original_image, color, (25, 25), 25)
self.click_image = pygame.Surface((50, 50), pygame.SRCALPHA)
pygame.draw.circle(self.click_image, color, (25, 25), 25)
pygame.draw.circle(self.click_image, (255, 255, 255), (25, 25), 25, 4)
self.image = self.original_image
self.rect = self.image.get_rect(center = (x, y))
self.clicked = False
def update(self, event_list):
for event in event_list:
if event.type == pygame.MOUSEBUTTONDOWN:
if self.rect.collidepoint(event.pos):
self.clicked = not self.clicked
self.image = self.click_image if self.clicked else self.original_image
pygame.init()
window = pygame.display.set_mode((300, 300))
clock = pygame.time.Clock()
sprite_object = SpriteObject(*window.get_rect().center, (128, 128, 0))
group = pygame.sprite.Group([
SpriteObject(window.get_width() // 3, window.get_height() // 3, (128, 0, 0)),
SpriteObject(window.get_width() * 2 // 3, window.get_height() // 3, (0, 128, 0)),
SpriteObject(window.get_width() // 3, window.get_height() * 2 // 3, (0, 0, 128)),
SpriteObject(window.get_width() * 2// 3, window.get_height() * 2 // 3, (128, 128, 0)),
])
run = True
while run:
clock.tick(60)
event_list = pygame.event.get()
for event in event_list:
if event.type == pygame.QUIT:
run = False
group.update(event_list)
window.fill(0)
group.draw(window)
pygame.display.flip()
pygame.quit()
exit()
See further Creating multiple sprites with different update()'s from the same sprite class in Pygame
The current position of the mouse can be determined via pygame.mouse.get_pos()
. The return value is a tuple that represents the x and y coordinates of the mouse cursor. pygame.mouse.get_pressed()
returns a list of Boolean values ??that represent the state (True
or False
) of all mouse buttons. The state of a button is True
as long as a button is held down. When multiple buttons are pressed, multiple items in the list are True
. The 1st, 2nd and 3rd elements in the list represent the left, middle and right mouse buttons.
Detect evaluate the mouse states in the Update
method of the pygame.sprite.Sprite
object:
class SpriteObject(pygame.sprite.Sprite):
# [...]
def update(self, event_list):
mouse_pos = pygame.mouse.get_pos()
mouse_buttons = pygame.mouse.get_pressed()
if self.rect.collidepoint(mouse_pos) and any(mouse_buttons):
# [...]
my_sprite = SpriteObject()
group = pygame.sprite.Group(my_sprite)
# [...]
run = True
while run:
for event in pygame.event.get():
if event.type == pygame.QUIT:
run = False
group.update(event_list)
# [...]
Minimal example: repl.it/@Rabbid76/PyGame-MouseHover
import pygame
class SpriteObject(pygame.sprite.Sprite):
def __init__(self, x, y, color):
super().__init__()
self.original_image = pygame.Surface((50, 50), pygame.SRCALPHA)
pygame.draw.circle(self.original_image, color, (25, 25), 25)
self.hover_image = pygame.Surface((50, 50), pygame.SRCALPHA)
pygame.draw.circle(self.hover_image, color, (25, 25), 25)
pygame.draw.circle(self.hover_image, (255, 255, 255), (25, 25), 25, 4)
self.image = self.original_image
self.rect = self.image.get_rect(center = (x, y))
self.hover = False
def update(self):
mouse_pos = pygame.mouse.get_pos()
mouse_buttons = pygame.mouse.get_pressed()
#self.hover = self.rect.collidepoint(mouse_pos)
self.hover = self.rect.collidepoint(mouse_pos) and any(mouse_buttons)
self.image = self.hover_image if self.hover else self.original_image
pygame.init()
window = pygame.display.set_mode((300, 300))
clock = pygame.time.Clock()
sprite_object = SpriteObject(*window.get_rect().center, (128, 128, 0))
group = pygame.sprite.Group([
SpriteObject(window.get_width() // 3, window.get_height() // 3, (128, 0, 0)),
SpriteObject(window.get_width() * 2 // 3, window.get_height() // 3, (0, 128, 0)),
SpriteObject(window.get_width() // 3, window.get_height() * 2 // 3, (0, 0, 128)),
SpriteObject(window.get_width() * 2// 3, window.get_height() * 2 // 3, (128, 128, 0)),
])
run = True
while run:
clock.tick(60)
for event in pygame.event.get():
if event.type == pygame.QUIT:
run = False
group.update()
window.fill(0)
group.draw(window)
pygame.display.flip()
pygame.quit()
exit()
I have used a different approach to search for a file using stack.. keeping in mind that there could be folders inside a folder. Though its not faster than windows search(and I was not expecting that though) but it definitely gives out correct result. Please modify the code as you wish to. This code was originally made to extract the file path of certain file extension :). Feel free to optimize.
import java.io.File;
import java.io.IOException;
import java.util.ArrayList;
import java.util.List;
/**
* @author Deepankar Sinha
*/
public class GetList {
public List<String> stack;
static List<String> lnkFile;
static List<String> progName;
int index=-1;
public static void main(String args[]) throws IOException
{
//var-- progFile:Location of the file to be search.
String progFile="C:\\";
GetList obj=new GetList();
String temp=progFile;
int i;
while(!"&%@#".equals(temp))
{
File dir=new File(temp);
String[] directory=dir.list();
if(directory!=null){
for(String name: directory)
{
if(new File(temp+name).isDirectory())
obj.push(temp+name+"\\");
else
if(new File(temp+name).isFile())
{
try{
//".exe can be replaced with file name to be searched. Just exclude name.substring()... you know what to do.:)
if(".exe".equals(name.substring(name.lastIndexOf('.'), name.length())))
{
//obj.addFile(temp+name,name);
System.out.println(temp+name);
}
}catch(StringIndexOutOfBoundsException e)
{
//debug purpose
System.out.println("ERROR******"+temp+name);
}
}
}}
temp=obj.pop();
}
obj.display();
// for(int i=0;i<directory.length;i++)
// System.out.println(directory[i]);
}
public GetList() {
this.stack = new ArrayList<>();
this.lnkFile=new ArrayList<>();
this.progName=new ArrayList<>();
}
public void push(String dir)
{
index++;
//System.out.println("PUSH : "+dir+" "+index);
this.stack.add(index,dir);
}
public String pop()
{
String dir="";
if(index==-1)
return "&%@#";
else
{
dir=this.stack.get(index);
//System.out.println("POP : "+dir+" "+index);
index--;
}
return dir;
}
public void addFile(String name,String name2)
{
lnkFile.add(name);
progName.add(name2);
}
public void display()
{
GetList.lnkFile.stream().forEach((lnkFile1) -> {
System.out.println(lnkFile1);
});
}
}
on windows 10, Notepad 7.8.5, i found this solution to convert from CRLF to LF.
Edit > Format end of line
and choose either Windows(CR+LF)
or Unix(LF)
This worked for me ::-
mysql --host=hostNameorIp --user=username --password=password
or
mysql --host=hostNameorIp --user=username --password=password database_name
I'm using Phonegap, but this thread keeps coming as the first one when Googling about the error message.
For me this issue went away by defining the imagetype to PNG.
encodingType : Camera.EncodingType.PNG
So the whole line being:
navigator.camera.getPicture(successFunction, failFunction, { encodingType : Camera.EncodingType.PNG, correctOrientation:true, sourceType : Camera.PictureSourceType .PHOTOLIBRARY, quality: 70, allowEdit : false , destinationType: Camera.DestinationType.DATA_URL});
Your mileage may vary, but that did the trick for me.
Use ngStorage
For All Your AngularJS Local Storage Needs. Please note that this is NOT a native part of the Angular JS framework.
ngStorage
contains two services, $localStorage
and $sessionStorage
angular.module('app', [
'ngStorage'
]).controller('Ctrl', function(
$scope,
$localStorage,
$sessionStorage
){});
Check the Demo
You can use the CSS property word-wrap:break-word;
, which will break words if they are too long for your span width.
span { _x000D_
display:block;_x000D_
width:150px;_x000D_
word-wrap:break-word;_x000D_
}
_x000D_
<span>VeryLongLongLongLongLongLongLongLongLongLongLongLongExample</span>
_x000D_
Create a script file; write commands:
#!/bin/sh
mongo < file.js
In file.js
write your mongo query:
db.collection.find({"myValue":null}).count();
I would highly recommend reading Apple's guides, and viewing the WWDC resources listed here: Internationalization and Localization Topics
To specifically answer your question, when you add a new language to your project, you get an opportunity to choose what InfoPlist files to include (if you have multiple targets, you'll have multiple Info plist files). All you need to do to get the following screen is hit the + under Localizations and choose a new language to add support for.
Once you've added, it will create the necessary string files in the appropriate lproj directories for the given language.
--EDIT--
Just to be clear, iOS will swap out the string for your Plist file based upon the user's currently selected language using the plist entry's key as the key in the localized strings file.
I just input some value that I knew was invalid and here is the output:
'whatToInput' is not a supported event for HtmlPanelGrid. Please specify one of these supported event names: click, dblclick, keydown, keypress, keyup, mousedown, mousemove, mouseout, mouseover, mouseup.
So values you can pass to event are
for you ask
update file1 f1
set file1.firstfield=
(
select 'BIT OF TEXT' || f2.something
from file2 f2
where substr(f1.firstfield,10,20) = substr(f2.anotherfield,1,10)
)
where exists
(
select * from file2 f2
where substr(f1.firstfield,10,20) = substr(f2.anotherfield,1,10)
)
and f1.firstfield like 'BLAH%'
if join give multiple result you can force update like this
update file1 f1
set file1.firstfield=
(
select 'BIT OF TEXT' || f2.something
from file2 f2
where substr(f1.firstfield,10,20) = substr(f2.anotherfield,1,10)
fetch first rows only
)
where exists
(
select * from file2 f2
where substr(f1.firstfield,10,20) = substr(f2.anotherfield,1,10)
)
and f1.firstfield like 'BLAH%'
template methode
update table1 f1
set (f1.field1, f1.field2, f1.field3, f1.field4)=
(
select f2.field1, f2.field2, f2.field3, 'CONSTVALUE'
from table2 f2
where (f1.key1, f1.key2)=(f2.key1, f2.key2)
)
where exists
(
select * from table2 f2
where (f1.key1, f1.key2)=(f2.key1, f2.key2)
)
Everything that is business logic belongs in a model, whether it is a database query, calculations, a REST call, etc.
You can have the data access in the model itself, the MVC pattern doesn't restrict you from doing that. You can sugar coat it with services, mappers and what not, but the actual definition of a model is a layer that handles business logic, nothing more, nothing less. It can be a class, a function, or a complete module with a gazillion objects if that's what you want.
It's always easier to have a separate object that actually executes the database queries instead of having them being executed in the model directly: this will especially come in handy when unit testing (because of the easiness of injecting a mock database dependency in your model):
class Database {
protected $_conn;
public function __construct($connection) {
$this->_conn = $connection;
}
public function ExecuteObject($sql, $data) {
// stuff
}
}
abstract class Model {
protected $_db;
public function __construct(Database $db) {
$this->_db = $db;
}
}
class User extends Model {
public function CheckUsername($username) {
// ...
$sql = "SELECT Username FROM" . $this->usersTableName . " WHERE ...";
return $this->_db->ExecuteObject($sql, $data);
}
}
$db = new Database($conn);
$model = new User($db);
$model->CheckUsername('foo');
Also, in PHP, you rarely need to catch/rethrow exceptions because the backtrace is preserved, especially in a case like your example. Just let the exception be thrown and catch it in the controller instead.
Based on Stijn Nevens and modified for Django use to round current time to the nearest 15 minute.
from datetime import date, timedelta, datetime, time
def roundTime(dt=None, dateDelta=timedelta(minutes=1)):
roundTo = dateDelta.total_seconds()
if dt == None : dt = datetime.now()
seconds = (dt - dt.min).seconds
# // is a floor division, not a comment on following line:
rounding = (seconds+roundTo/2) // roundTo * roundTo
return dt + timedelta(0,rounding-seconds,-dt.microsecond)
dt = roundTime(datetime.now(),timedelta(minutes=15)).strftime('%H:%M:%S')
dt = 11:45:00
if you need full date and time just remove the .strftime('%H:%M:%S')
On Mac OS X using Visual Studio Code version 1.34.0 (1.34.0) I had to do the following to get Visual Studio Code to recognise the virtual environments:
Location of my virtual environment (named ml_venv):
/Users/auser/.pyvenv/ml_venv
auser@HOST:~/.pyvenv$ tree -d -L 2
.
+-- ml_venv
+-- bin
+-- include
+-- lib
I added the following entry in Settings.json: "python.venvPath": "/Users/auser/.pyvenv"
I restarted the IDE, and now I could see the interpreter from my virtual environment:
Yes, it is normal. This is because you checkout a single commit, that doesnt have a head. Especially it is (sooner or later) not a head of any branch.
But there is usually no problem with that state. You may create a new branch from the tag, if this makes you feel safer :)
A slightly improved answer to Aristos...
<script type="text/javascript">
function resizeIframe(iframe) {
iframe.height = iframe.contentWindow.document.body.scrollHeight + "px";
}
</script>
Then declare in your iframe as follows:
<iframe onload="resizeIframe(this)" ...
There are two minor improvements:
iframe.height = ""
if you're going to reassign it in the very next statement. Doing so actually incurs an overhead as you're dealing with a DOM element.Edit: If the content in the frame is always changing then call:
parent.resizeIframe(this.frameElement);
from within the iframe after the update. Works for same origin.
Or to auto detect:
// on resize
this.container = this.frameElement.contentWindow.document.body;
this.watch = () => {
cancelAnimationFrame(this.watcher);
if (this.lastScrollHeight !== container.scrollHeight) {
parent.resizeIframeToContentSize(this.frameElement);
}
this.lastScrollHeight = container.scrollHeight;
this.watcher = requestAnimationFrame(this.watch);
};
this.watcher = window.requestAnimationFrame(this.watch);
so if you have a table with a row like:
firstname lastname
Bill smith
you can do something like
select firstname + ' ' + lastname from thetable
and you will get "Bill Smith"
Actually, this may or may not be much help but you could write a script which created a Java class for each Python class, including method stubs, placing the Python implementation of the method inside the Javadoc
In fact, this is probably pretty easy to knock up in Python.
I worked for a company which undertook a port to Java of a huge Smalltalk (similar-ish to Python) system and this is exactly what they did. Filling in the methods was manual but invaluable, because it got you to really think about what was going on. I doubt that a brute-force method would result in nice code.
Here's another possibility: can you convert your Python to Jython more easily? Jython is just Python for the JVM. It may be possible to use a Java decompiler (e.g. JAD) to then convert the bytecode back into Java code (or you may just wish to run on a JVM). I'm not sure about this however, perhaps someone else would have a better idea.
If you set unique parameters, then the cache does not work, for example:
$.ajax({
url : "my_url",
data : {
'uniq_param' : (new Date()).getTime(),
//other data
}});
Alternative solution: A More Userfriendly solution than command line:
If you are looking for a user friendly way to send and request data using HTTP Methods other than simple GET's probably you are looking for a chrome extention just like this one http://goo.gl/rVW22f called AVANCED REST CLIENT
For guys looking to stay with command-line i recommend cygwin:
I ended up installing cygwin with CURL which allow us to Get that Linux feeling - on Windows!
Using Cygwin command line this issues have stopped and most important, the request syntax used on 1. worked fine.
Useful links:
Where i was downloading the curl for windows command line?
For more information on how to install and get curl working with cygwin just go here
I hope it helps someone because i spent all morning on this.
I had the same problem with MyEclipse and Eclipse 6.6.0. It red lined the uri value in every
<%@ taglib prefix="s" uri="/struts-tags"%>
.
I fixed it by going to 'Project/MyEclipse/Web/Tag Libraries' and setting the Default TLD Prefix for Struts 1.2 Tiles Tags to 's'. I also had to do the same under 'Project/MyEclipse/Web/Configure workspace settings.../Tag Libraries'.
You can use Magical Take Photo library.
1. try with compile in gradle
compile 'com.frosquivel:magicaltakephoto:1.0'
2. You need this permission in your manifest.xml
<uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE"/>
<uses-permission android:name="android.permission.READ_EXTERNAL_STORAGE" />
<uses-permission android:name="android.permission.CAMERA"/>
3. instance the class like this
// "this" is the current activity param
MagicalTakePhoto magicalTakePhoto = new MagicalTakePhoto(this,ANY_INTEGER_0_TO_4000_FOR_QUALITY);
4. if you need to take picture use the method
magicalTakePhoto.takePhoto("my_photo_name");
5. if you need to select picture in device, try with the method:
magicalTakePhoto.selectedPicture("my_header_name");
6. You need to override the method onActivityResult of the activity or fragment like this:
@Override
public void onActivityResult(int requestCode, int resultCode, Intent data) {
super.onActivityResult(requestCode, resultCode, data);
magicalTakePhoto.resultPhoto(requestCode, resultCode, data);
// example to get photo
// imageView.setImageBitmap(magicalTakePhoto.getMyPhoto());
}
Note: Only with this Library you can take and select picture in the device, this use a min API 15.
This code is in the wrong place:
var image : UIImage = UIImage(named:"afternoon")!
bgImage = UIImageView(image: image)
bgImage.frame = CGRect(x: 0, y: 0, width: 100, height: 200)
view.addSubview(bgImage)
You must place it inside a function. I recommend moving it inside the viewDidLoad
function.
In general, the only code you can add within the class that's not inside of a function are variable declarations like:
@IBOutlet weak var bgImage: UIImageView!
The main reason it is useful in industry is the plug-ins built on top of the core functionality. Almost all active Matlab development for the last few years has focused on these.
Unfortunately, you won't have much opportunity to use these in an academic environment.
To check that the file you're trying to open actually exists, you can change directories in terminal using cd
. To change to ~/Desktop/sass/css
: cd ~/Desktop/sass/css
. To see what files are in the directory: ls
.
If you want information about either of those commands, use the man
page: man cd
or man ls
, for example.
Google for "basic unix command line commands" or similar; that will give you numerous examples of moving around, viewing files, etc in the command line.
On Mac OS X, you can also use open
to open a finder window: open .
will open the current directory in finder. (open ~/Desktop/sass/css
will open the ~/Desktop/sass/css
).
You can do just about any format you want with --pretty=format:
git log -1 --pretty=format:%h
For completeness, in addition to previous answers (perform calculation of visible people inside controller) you can also perform that calculations in your HTML template as in the example below.
Assuming your list of people is in data
variable and you filter people using query
model, the following code will work for you:
<p>Number of visible people: {{(data|filter:query).length}}</p>
<p>Total number of people: {{data.length}}</p>
{{data.length}}
- prints total number of people{{(data|filter:query).length}}
- prints filtered number of peopleNote that this solution works fine if you want to use filtered data only once in a page. However, if you use filtered data more than once e.g. to present items and to show length of filtered list, I would suggest using alias expression (described below) for AngularJS 1.3+ or the solution proposed by @Wumms for AngularJS version prior to 1.3.
New Feature in Angular 1.3
AngularJS creators also noticed that problem and in version 1.3 (beta 17) they added "alias" expression which will store the intermediate results of the repeater after the filters have been applied e.g.
<div ng-repeat="person in data | filter:query as results">
<!-- template ... -->
</div>
<p>Number of visible people: {{results.length}}</p>
The alias expression will prevent multiple filter execution issue.
I hope that will help.
I had the same issue with SQL Server 2014 (Management Studio could not see the folder in which the backup file resided, when attempting to locate it for a Restore operation). This thread held the answer that solved my problem. Quote:
The SQL Server service account can be found by Start->Control Panel->Administrative Tools->Services. Double-click on the SQL Server service->Log On tab. You'll either be using the "Local System account" or "This account" to define a specific account. If you are using the Local System account, you won't be able to reference backups that are not local to the server. If, instead, you have defined the account to use, this is the account that needs to have access to the backup file location. Your ability to access the backups using your personal logon is irrelevant; it is the SQL Server account that is used, even though you are initiating the backup. Your IT people should be able to determine what rights are granted to each account.
Hope that helps someone.
I think a better way is to insert the blank item first, then bind the data just as you have been doing. However you need to set the AppendDataBoundItems
property of the list control.
We use the following method to bind any data source to any list control...
public static void BindList(ListControl list, IEnumerable datasource, string valueName, string textName)
{
list.Items.Clear();
list.Items.Add("", "");
list.AppendDataBoundItems = true;
list.DataValueField = valueName;
list.DataTextField = textName;
list.DataSource = datasource;
list.DataBind();
}
Try this for Windows:
npm uninstall -g cordova
Try this for MAC:
sudo npm uninstall -g cordova
You can also add Cordova like this:
If You Want To install the previous version of Cordova through the Node Package Manager (npm):
npm install -g [email protected]
If You Want To install the latest version of Cordova:
npm install -g cordova
Enjoy!
Try using the -L
flag with pg_restore by specifying the file taken from pg_dump -Fc
-L list-file --use-list=list-file
Restore only those archive elements that are listed in list-file, and restore them in the order they appear in the file. Note that if filtering switches such as -n or -t are used with -L, they will further restrict the items restored.
list-file is normally created by editing the output of a previous -l operation. Lines can be moved or removed, and can also be commented out by placing a semicolon (;) at the start of the line. See below for examples.
https://www.postgresql.org/docs/9.5/app-pgrestore.html
pg_dump -Fc -f pg.dump db_name
pg_restore -l pg.dump | grep -v 'COMMENT - EXTENSION' > pg_restore.list
pg_restore -L pg_restore.list pg.dump
Here you can see the Inverse is true by outputting only the comment:
pg_dump -Fc -f pg.dump db_name
pg_restore -l pg.dump | grep 'COMMENT - EXTENSION' > pg_restore_inverse.list
pg_restore -L pg_restore_inverse.list pg.dump
--
-- PostgreSQL database dump
--
-- Dumped from database version 9.4.15
-- Dumped by pg_dump version 9.5.14
SET statement_timeout = 0;
SET lock_timeout = 0;
SET client_encoding = 'UTF8';
SET standard_conforming_strings = on;
SELECT pg_catalog.set_config('search_path', '', false);
SET check_function_bodies = false;
SET client_min_messages = warning;
SET row_security = off;
--
-- Name: EXTENSION plpgsql; Type: COMMENT; Schema: -; Owner:
--
COMMENT ON EXTENSION plpgsql IS 'PL/pgSQL procedural language';
--
-- PostgreSQL database dump complete
--
This issue can be tackled by using the placeholder-shown selector and super imposed backgrounds, if your implementation allows:
textarea:not(:placeholder-shown) {
background: #fff;
}
div {
top: 0;
left: 14px;
color: rgba(0,0,0,0.4);
z-index: -1;
position: absolute;
line-height: 1.2;
white-space: pre-wrap;
}
https://codepen.io/franciscoaquino/pen/YzyBPYK
Selector support:
try something like this:
a = buffer[3];
a = a*256 + buffer[2];
a = a*256 + buffer[1];
a = a*256 + buffer[0];
this is assuming that the lowest byte comes first. if the highest byte comes first you might have to swap the indices (go from 0 to 3).
basically for each byte you want to add, you first multiply a by 256 (which equals a shift to the left by 8 bits) and then add the new byte.
Previous answers were good and correct, but in my opinion, an extra names
parameter will make it perfect, and it should be the recommended way, especially when the csv has no headers
.
usecols
and names
parametersdf = pd.read_csv(file_path, usecols=[3,6], names=['colA', 'colB'])
or use header=None
to explicitly tells people that the csv
has no headers (anyway both lines are identical)
df = pd.read_csv(file_path, usecols=[3,6], names=['colA', 'colB'], header=None)
So that you can retrieve your data by
# with `names` parameter
df['colA']
df['colB']
instead of
# without `names` parameter
df[0]
df[1]
Based on read_csv, when names
are passed explicitly, then header
will be behaving like None
instead of 0
, so one can skip header=None
when names
exist.
Try this::
sb_trim = Regex.Replace(stw, @"(\D+)\s+\$([\d,]+)\.\d+\s+(.)",
m => string.Format(
"{0},{1},{2}",
m.Groups[1].Value,
m.Groups[2].Value.Replace(",", string.Empty),
m.Groups[3].Value));
This is about as clean an answer as you'll get, at least with regexes.
(\D+)
: First capture group. One or more non-digit characters.\s+\$
: One or more spacing characters, then a literal dollar sign ($).([\d,]+)
: Second capture group. One or more digits and/or commas.\.\d+
: Decimal point, then at least one digit.\s+
: One or more spacing characters.(.)
: Third capture group. Any non-line-breaking character.The second capture group additionally needs to have its commas stripped. You could do this with another regex, but it's really unnecessary and bad for performance. This is why we need to use a lambda expression and string format to piece together the replacement. If it weren't for that, we could just use this as the replacement, in place of the lambda expression:
"$1,$2,$3"
A one liner that takes into account empty lists would be:
T lastItem = list.size() == 0 ? null : list.get(list.size() - 1);
Or if you don't like null values (and performance isn't an issue):
Optional<T> lastItem = list.stream().reduce((first, second) -> second);
Try this :
import urllib, urllib2, json
url = 'http://openligadb-json.heroku.com/api/teams_by_league_saison?league_saison=2012&league_shortcut=bl1'
request = urllib2.Request(url)
request.add_header('User-Agent','Mozilla/4.0 (compatible; MSIE 5.5; Windows NT)')
request.add_header('Content-Type','application/json')
response = urllib2.urlopen(request)
json_object = json.load(response)
#print json_object['results']
if json_object['team'] == []:
print 'No Data!'
else:
for rows in json_object['team']:
print 'Team ID:' + rows['team_id']
print 'Team Name:' + rows['team_name']
print 'Team URL:' + rows['team_icon_url']
1> Add this namspace. using Newtonsoft.Json.Linq;
2> use this source code.
JObject joResponse = JObject.Parse(response);
JObject ojObject = (JObject)joResponse["response"];
JArray array= (JArray)ojObject ["chats"];
int id = Convert.ToInt32(array[0].toString());
I was fixing a template created by somebody else who forgot to include the doctype.
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN"
"http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
If you don't declare the doctype
IE8 does strange things in Quirks mode.
Steps:
1. Add accept attribute to input tag
2. Validate with javascript
3. Add server side validation to verify if the content is really an expected file type
For HTML and javascript:
<html>
<body>
<input name="image" type="file" id="fileName" accept=".jpg,.jpeg,.png" onchange="validateFileType()"/>
<script type="text/javascript">
function validateFileType(){
var fileName = document.getElementById("fileName").value;
var idxDot = fileName.lastIndexOf(".") + 1;
var extFile = fileName.substr(idxDot, fileName.length).toLowerCase();
if (extFile=="jpg" || extFile=="jpeg" || extFile=="png"){
//TO DO
}else{
alert("Only jpg/jpeg and png files are allowed!");
}
}
</script>
</body>
</html>
Explanation:
EDIT : this answer is old. Usage of MD5 is now discouraged as it can easily be broken.
MD5 must be good enough for you I imagine? You can achieve it with MessageDigest.
MessageDigest.getInstance("MD5");
There are also other algorithms listed here.
And here's an third party version of it, if you really want: Fast MD5
Based on this forum post: https://groups.google.com/forum/#!topic/ggplot2/mK9DR3dKIBU
Sounds like the easiest thing to do is to add a line break (\n) before your x axis, and after your y axis labels. Seems a lot easier (although dumber) than the solutions posted above.
ggplot(mpg, aes(cty, hwy)) +
geom_point() +
xlab("\nYour_x_Label") + ylab("Your_y_Label\n")
Hope that helps!
If the worksheet you want to retrieve exists at compile-time in ThisWorkbook
(i.e. the workbook that contains the VBA code you're looking at), then the simplest and most consistently reliable way to refer to that Worksheet
object is to use its code name:
Debug.Print Sheet1.Range("A1").Value
You can set the code name to anything you need (as long as it's a valid VBA identifier), independently of its "tab name" (which the user can modify at any time), by changing the (Name)
property in the Properties toolwindow (F4):
The Name
property refers to the "tab name" that the user can change on a whim; the (Name)
property refers to the code name of the worksheet, and the user can't change it without accessing the Visual Basic Editor.
VBA uses this code name to automatically declare a global-scope Worksheet
object variable that your code gets to use anywhere to refer to that sheet, for free.
In other words, if the sheet exists in ThisWorkbook
at compile-time, there's never a need to declare a variable for it - the variable is already there!
If the worksheet is created at run-time (inside ThisWorkbook
or not), then you need to declare & assign a Worksheet
variable for it.
Use the Worksheets
property of a Workbook
object to retrieve it:
Dim wb As Workbook
Set wb = Application.Workbooks.Open(path)
Dim ws As Worksheet
Set ws = wb.Worksheets(nameOrIndex)
Both the name and index of a worksheet can easily be modified by the user (accidentally or not), unless workbook structure is protected. If workbook isn't protected, you simply cannot assume that the name or index alone will give you the specific worksheet you're after - it's always a good idea to validate the format of the sheet (e.g. verify that cell A1 contains some specific text, or that there's a table with a specific name, that contains some specific column headings).
Using the Sheets
collection contains Worksheet
objects, but can also contain Chart
instances, and a half-dozen more legacy sheet types that are not worksheets. Assigning a Worksheet
reference from whatever Sheets(nameOrIndex)
returns, risks throwing a type mismatch run-time error for that reason.
Not qualifying the Worksheets
collection is an implicit ActiveWorkbook reference - meaning the Worksheets
collection is pulling from whatever workbook is active at the moment the instruction is executing. Such implicit references make the code frail and bug-prone, especially if the user can navigate and interact with the Excel UI while code is running.
Unless you mean to activate a specific sheet, you never need to call ws.Activate
in order to do 99% of what you want to do with a worksheet. Just use your ws
variable instead.
Why cant I do this:
List<Object> object = new List<Object>();
You can't do this because List
is an interface, and interfaces cannot be instantiated. Only (concrete) classes can be. Examples of concrete classes implementing List
include ArrayList
, LinkedList
etc.
Here is how one would create an instance of ArrayList
:
List<Object> object = new ArrayList<Object>();
I have a method that returns a
List<?>
, how would I turn that into aList<Object>
Show us the relevant code and I'll update the answer.
Suppose we have a dictionary like this
Dictionary<int,string> dict = new Dictionary<int, string>();
dict.Add(1, "Mohan");
dict.Add(2, "Kishor");
dict.Add(3, "Pankaj");
dict.Add(4, "Jeetu");
We can initialize it as follow.
Dictionary<int, string> dict = new Dictionary<int, string>
{
{ 1, "Mohan" },
{ 2, "Kishor" },
{ 3, "Pankaj" },
{ 4, "Jeetu" }
};
Is canny
your own function? Do you use Canny from OpenCV inside it? If yes check if you feed suitable argument for Canny
- first Canny
argument should meet following criteria:
<type 'numpy.ndarray'>
dtype('uint8')
shape
should be 2-tuple
of int
s (tuple
containing exactly 2 integers)You can check it by printing respectively
type(variable_name)
variable_name.dtype
variable_name.shape
Replace variable_name
with name of variable you feed as first argument to Canny
.
how to have a click event outside of the dropdown menu so that it close the dropdown menu ? Heres the code
$(document).click(function (e) {
e.stopPropagation();
var container = $(".dropDown");
//check if the clicked area is dropDown or not
if (container.has(e.target).length === 0) {
$('.subMenu').hide();
}
})
Deleted the package-lock.json file & then ran
npm install
Interpreting newlines as <br />
used to be a feature of Github-flavored markdown, but the most recent help document no longer lists this feature.
Fortunately, you can do it manually. The easiest way is to ensure that each line ends with two spaces. So, change
a
b
c
into
a__
b__
c
(where _
is a blank space).
Or, you can add explicit <br />
tags.
a <br />
b <br />
c
The ::
is called scope resolution operator.
Can be used like this:
::
identifier
class-name ::
identifier
namespace ::
identifier
You can read about it here
https://docs.microsoft.com/en-us/cpp/cpp/scope-resolution-operator?view=vs-2017
You should acquire `rssh', the restricted shell
You can follow the restriction guides mentioned above, they're all rather self-explanatory, and simple to follow. Understand the terms `chroot jail', and how to effectively implement sshd/terminal configurations, and so on.
Being as most of your users access your terminals via sshd, you should also probably look into sshd_conifg, the SSH daemon configuration file, to apply certain restrictions via SSH. Be careful, however. Understand properly what you try to implement, for the ramifications of incorrect configurations are probably rather dire.
Unfortunately, the old xkcd comic isn't completely up to date anymore.
Since Python 3.0 you have to write:
print("Hello, World!")
And someone has still to write that antigravity
library :(
It is explained pretty well here: Display a view from another controller in ASP.NET MVC
To quote @Womp:
By default, ASP.NET MVC checks first in \Views\[Controller_Dir]\
,
but after that, if it doesn't find the view, it checks in \Views\Shared
.
ASP MVC's idea is "convention over configuration" which means moving the view to the shared folder is the way to go in such cases.
PS: Take backup of your code in case it changes App.js
Assuming that winrar.exe
is in the PATH
, then Runtime.exec
is capable of finding it, if it is not, you will need to supply the fully qualified path to it, for example, assuming winrar.exe
is installed in C:/Program Files/WinRAR
you would need to use something like...
p=r.exec("C:/Program Files/WinRAR/winrar x h:\\myjar.jar *.* h:\\new");
Personally, I would recommend that you use ProcessBuilder
as it has some additional configuration abilities amongst other things. Where possible, you should also separate your command and parameters into separate String
elements, it deals with things like spaces much better then a single String
variable, for example...
ProcessBuilder pb = new ProcessBuilder(
"C:/Program Files/WinRAR/winrar",
"x",
"myjar.jar",
"*.*",
"new");
pb.directory(new File("H:/"));
pb. redirectErrorStream(true);
Process p = pb.start();
Don't forget to read the contents of the InputStream
from the process, as failing to do so may stall the process
Those are tuples, not sets. You can do this:
l1 = [(1, u'abc'), (2, u'def')]
l2 = [(tup[0],) for tup in l1]
l2
>>> [(1,), (2,)]
I think I can illustrate this quite nicely. Since nextTick
is called at the end of the current operation, calling it recursively can end up blocking the event loop from continuing. setImmediate
solves this by firing in the check phase of the event loop, allowing event loop to continue normally.
+-----------------------+
+->¦ timers ¦
¦ +-----------------------+
¦ +-----------------------+
¦ ¦ I/O callbacks ¦
¦ +-----------------------+
¦ +-----------------------+
¦ ¦ idle, prepare ¦
¦ +-----------------------+ +---------------+
¦ +-----------------------+ ¦ incoming: ¦
¦ ¦ poll ¦<-----¦ connections, ¦
¦ +-----------------------+ ¦ data, etc. ¦
¦ +-----------------------+ +---------------+
¦ ¦ check ¦
¦ +-----------------------+
¦ +-----------------------+
+--¦ close callbacks ¦
+-----------------------+
source: https://nodejs.org/en/docs/guides/event-loop-timers-and-nexttick/
Notice that the check phase is immediately after the poll phase. This is because the poll phase and I/O callbacks are the most likely places your calls to setImmediate
are going to run. So ideally most of those calls will actually be pretty immediate, just not as immediate as nextTick
which is checked after every operation and technically exists outside of the event loop.
Let's take a look at a little example of the difference between setImmediate
and process.nextTick
:
function step(iteration) {
if (iteration === 10) return;
setImmediate(() => {
console.log(`setImmediate iteration: ${iteration}`);
step(iteration + 1); // Recursive call from setImmediate handler.
});
process.nextTick(() => {
console.log(`nextTick iteration: ${iteration}`);
});
}
step(0);
Let's say we just ran this program and are stepping through the first iteration of the event loop. It will call into the step
function with iteration zero. It will then register two handlers, one for setImmediate
and one for process.nextTick
. We then recursively call this function from the setImmediate
handler which will run in the next check phase. The nextTick
handler will run at the end of the current operation interrupting the event loop, so even though it was registered second it will actually run first.
The order ends up being: nextTick
fires as current operation ends, next event loop begins, normal event loop phases execute, setImmediate
fires and recursively calls our step
function to start the process all over again. Current operation ends, nextTick
fires, etc.
The output of the above code would be:
nextTick iteration: 0
setImmediate iteration: 0
nextTick iteration: 1
setImmediate iteration: 1
nextTick iteration: 2
setImmediate iteration: 2
nextTick iteration: 3
setImmediate iteration: 3
nextTick iteration: 4
setImmediate iteration: 4
nextTick iteration: 5
setImmediate iteration: 5
nextTick iteration: 6
setImmediate iteration: 6
nextTick iteration: 7
setImmediate iteration: 7
nextTick iteration: 8
setImmediate iteration: 8
nextTick iteration: 9
setImmediate iteration: 9
Now let's move our recursive call to step
into our nextTick
handler instead of the setImmediate
.
function step(iteration) {
if (iteration === 10) return;
setImmediate(() => {
console.log(`setImmediate iteration: ${iteration}`);
});
process.nextTick(() => {
console.log(`nextTick iteration: ${iteration}`);
step(iteration + 1); // Recursive call from nextTick handler.
});
}
step(0);
Now that we have moved the recursive call to step
into the nextTick
handler things will behave in a different order. Our first iteration of the event loop runs and calls step
registering a setImmedaite
handler as well as a nextTick
handler. After the current operation ends our nextTick
handler fires which recursively calls step
and registers another setImmediate
handler as well as another nextTick
handler. Since a nextTick
handler fires after the current operation, registering a nextTick
handler within a nextTick
handler will cause the second handler to run immediately after the current handler operation finishes. The nextTick
handlers will keep firing, preventing the current event loop from ever continuing. We will get through all our nextTick
handlers before we see a single setImmediate
handler fire.
The output of the above code ends up being:
nextTick iteration: 0
nextTick iteration: 1
nextTick iteration: 2
nextTick iteration: 3
nextTick iteration: 4
nextTick iteration: 5
nextTick iteration: 6
nextTick iteration: 7
nextTick iteration: 8
nextTick iteration: 9
setImmediate iteration: 0
setImmediate iteration: 1
setImmediate iteration: 2
setImmediate iteration: 3
setImmediate iteration: 4
setImmediate iteration: 5
setImmediate iteration: 6
setImmediate iteration: 7
setImmediate iteration: 8
setImmediate iteration: 9
Note that had we not interrupted the recursive call and aborted it after 10 iterations then the nextTick
calls would keep recursing and never letting the event loop continue to the next phase. This is how nextTick
can become blocking when used recursively whereas setImmediate
will fire in the next event loop and setting another setImmediate
handler from within one won't interrupt the current event loop at all, allowing it to continue executing phases of the event loop as normal.
Hope that helps!
PS - I agree with other commenters that the names of the two functions could easily be swapped since nextTick
sounds like it's going to fire in the next event loop rather than the end of the current one, and the end of the current loop is more "immediate" than the beginning of the next loop. Oh well, that's what we get as an API matures and people come to depend on existing interfaces.
By the way guys, (int)Decimal.MaxValue will overflow. You can't get the "int" part of a decimal because the decimal is too friggen big to put in the int box. Just checked... its even too big for a long (Int64).
If you want the bit of a Decimal value to the LEFT of the dot, you need to do this:
Math.Truncate(number)
and return the value as... A DECIMAL or a DOUBLE.
edit: Truncate is definitely the correct function!
This is commonly caused by running out of file descriptors.
There is the systems total file descriptor limit, what do you get from the command:
sysctl fs.file-nr
This returns counts of file descriptors:
<in_use> <unused_but_allocated> <maximum>
To find out what a users file descriptor limit is run the commands:
sudo su - <username>
ulimit -Hn
To find out how many file descriptors are in use by a user run the command:
sudo lsof -u <username> 2>/dev/null | wc -l
So now if you are having a system file descriptor limit issue you will need to edit your /etc/sysctl.conf file and add, or modify it it already exists, a line with fs.file-max and set it to a value large enough to deal with the number of file descriptors you need and reboot.
fs.file-max = 204708
I experienced a similar problem: after deleting the deployment (kubectl delete deploy <name>
), the pods kept "Running" and where automatically re-created after deletion (kubectl delete po <name>
).
It turned out that the associated replica set was not deleted automatically for some reason, and after deleting that (kubectl delete rs <name>
), it was possible to delete the pods.
Numpy Array -> Panda Data Frame -> List from one Panda Column
Numpy Array
data = np.array([[10,20,30], [20,30,60], [30,60,90]])
Convert numpy array into Panda data frame
dataPd = pd.DataFrame(data = data)
print(dataPd)
0 1 2
0 10 20 30
1 20 30 60
2 30 60 90
pdToList = list(dataPd['2'])
Using OVER()
and LIMIT 1
:
SELECT COUNT(1) OVER()
FROM posts
INNER JOIN votes ON votes.post_id = posts.id
GROUP BY posts.id
LIMIT 1;
In my system, I use the update alternatives.
sudo update-alternatives --install /usr/bin/pip pip /usr/bin/pip3 1
sudo update-alternatives --install /usr/bin/pip pip /usr/bin/pip2 2
If I want to switch between them I use the following command.
sudo update-alternatives --config pip
Note: The 1st line is enough if you have only pip3 installed and not pip2.
for the gitlab RSAAuthentication yes
Host gitlab.com
RSAAuthentication yes
IdentityFile ~/.ssh/your_private_key_name
IdentitiesOnly yes
In order to give a value in the table, we need to give a command:
php artisan make:migration create_users_table
and after then this command line
php artisan migrate
......
VBA uses a garbage collector which is implemented by reference counting.
There can be multiple references to a given object (for example, Dim aw = ActiveWorkbook
creates a new reference to Active Workbook), so the garbage collector only cleans up an object when it is clear that there are no other references. Setting to Nothing is an explicit way of decrementing the reference count. The count is implicitly decremented when you exit scope.
Strictly speaking, in modern Excel versions (2010+) setting to Nothing isn't necessary, but there were issues with older versions of Excel (for which the workaround was to explicitly set)
According to the spec for locating Schemas
there may or may not be a schema retrievable via the namespace name... User community and/or consumer/provider agreements may establish circumstances in which [trying to retrieve an xsd from the namespace url] is a sensible default strategy
(thanks for being unambiguous, spec!)
and
in case a document author (human or not) created a document with a particular schema in view, and warrants that some or all of the document conforms to that schema, the schemaLocation and noNamespaceSchemaLocation [attributes] are provided.
So basically with specifying just a namespace, your XML "might" be attempted to be validated against an xsd at that location (even if it lacks a schemaLocation
attribute), depending on your "community." If you specify a specific schemaLocation
, then it basically is implying that the xml document "should" be conformant to said xsd, so "please validate it" (as I read it). My guess is that if you don't do a schemaLocation
or noNamespaceSchemaLocation
attribute it just "isn't validated" most of the time (based on the other answers, appears java does it this way).
Another wrinkle here is that typically, with xsd validation in java libraries [ex: spring config xml files], if your XML files specifies a particular schemaLocation
xsd url in an XML file, like xsi:schemaLocation="http://somewhere http://somewhere/something.xsd"
typically within one of your dependency jars it will contain a copy of that xsd file, in its resources section, and spring has a "mapping" capability saying to treat that xsd file as if it maps to the url http://somewhere/something.xsd
(so you never end up going to web and downloading the file, it just exists locally). See also https://stackoverflow.com/a/41225329/32453 for slightly more info.
I modified Tim Stone's solution even further. This allows the cookie to be in 2 states, 1 for mobile and 0 for full. When the mobile cookie is set to 0 even a mobile browser will go to the full site.
Here is the code:
<IfModule mod_rewrite.c>
RewriteBase /
RewriteEngine On
# Check if mobile=1 is set and set cookie 'mobile' equal to 1
RewriteCond %{QUERY_STRING} (^|&)mobile=1(&|$)
RewriteRule ^ - [CO=mobile:1:%{HTTP_HOST}]
# Check if mobile=0 is set and set cookie 'mobile' equal to 0
RewriteCond %{QUERY_STRING} (^|&)mobile=0(&|$)
RewriteRule ^ - [CO=mobile:0:%{HTTP_HOST}]
# cookie can't be set and read in the same request so check
RewriteCond %{QUERY_STRING} (^|&)mobile=0(&|$)
RewriteRule ^ - [S=1]
# Check if this looks like a mobile device
RewriteCond %{HTTP:x-wap-profile} !^$ [OR]
RewriteCond %{HTTP_USER_AGENT} "android|blackberry|ipad|iphone|ipod|iemobile|opera mobile|palmos|webos|googlebot-mobile" [NC,OR]
RewriteCond %{HTTP:Profile} !^$
# Check if we're not already on the mobile site
RewriteCond %{HTTP_HOST} !^m\.
# Check to make sure we haven't set the cookie before
RewriteCond %{HTTP:Cookie} !\mobile=0(;|$)
# Now redirect to the mobile site
RewriteRule ^ http://m.example.com%{REQUEST_URI} [R,L]
</IfModule>
$shopOwner = ShopMeta::firstOrNew(array('shopId' => $theID,'metadataKey' => 2001));
Then make your changes and save. Note the firstOrNew doesn't do the insert if its not found, if you do need that then its firstOrCreate.
pip when used with virtualenv will generally install packages in the path <virtualenv_name>/lib/<python_ver>/site-packages
.
For example, I created a test virtualenv named venv_test with Python 2.7, and the django
folder is in venv_test/lib/python2.7/site-packages/django
.
Use the sizing utility classes...
h-50
= height 50%h-100
= height 100%http://www.codeply.com/go/Y3nG0io2uE
<div class="container">
<div class="row">
<div class="col-md-8 col-lg-6 B">
<div class="card card-inverse card-primary">
<img src="http://lorempicsum.com/rio/800/500/4" class="img-fluid" alt="Responsive image">
</div>
</div>
<div class="col-md-4 col-lg-3 G">
<div class="row h-100">
<div class="col-md-6 col-lg-6 B h-50 pb-3">
<div class="card card-inverse card-success h-100">
</div>
</div>
<div class="col-md-6 col-lg-6 B h-50 pb-3">
<div class="card card-inverse bg-success h-100">
</div>
</div>
<div class="col-md-12 h-50">
<div class="card card-inverse bg-danger h-100">
</div>
</div>
</div>
</div>
</div>
</div>
Or, for an unknown number of child columns, use flexbox and the cols will fill height. See the d-flex flex-column
on the row
, and h-100
on the child cols.
<div class="container">
<div class="row">
<div class="col-md-8 col-lg-6 B">
<div class="card card-inverse card-primary">
<img src="http://lorempicsum.com/rio/800/500/4" class="img-fluid" alt="Responsive image">
</div>
</div>
<div class="col-md-4 col-lg-3 G ">
<div class="row d-flex flex-column h-100">
<div class="col-md-6 col-lg-6 B h-100">
<div class="card bg-success h-100">
</div>
</div>
<div class="col-md-6 col-lg-6 B h-100">
<div class="card bg-success h-100">
</div>
</div>
<div class="col-md-12 h-100">
<div class="card bg-danger h-100">
</div>
</div>
</div>
</div>
</div>
</div>
Cross browser way of doing this is
var top = ($(window).scrollTop() || $("body").scrollTop());
On some platforms and for some types there are specific printf conversion specifiers available, but sometimes one has to resort to casting to larger types.
I've documented this tricky issue here, with example code: http://www.pixelbeat.org/programming/gcc/int_types/ and update it periodically with info on new platforms and types.
In case anyone's searching for this later on, a nice trick to get rid of those jagged edges on CSS transformations in Chrome is to add the CSS property -webkit-backface-visibility
with a value of hidden
. In my own tests, this has completely smoothed them out. Hope that helps.
-webkit-backface-visibility: hidden;
I think you should be able to select a disabled button using the following:
button[disabled=disabled], button:disabled {
// your css rules
}
To get all '.txt' file names inside 'dataPath' folder as a list in a Pythonic way:
from os import listdir
from os.path import isfile, join
path = "/dataPath/"
onlyTxtFiles = [f for f in listdir(path) if isfile(join(path, f)) and f.endswith(".txt")]
print onlyTxtFiles
Change your applicationId
in the android/app/build.gradle
file.
For example:
// Change this
applicationId "com.example.myAndroidApp"
//
// to this
applicationId "com.example.somethingElse"
Then Sync your gradle then you can able to install your app, if the previous applicationId is your production id the again change it the previous one now the device will allow to install the app.
Hope this may help you....
For Angular 6+ things have changed a little.
Cli setup is now done in angular.json (replaced .angular-cli.json) in your workspace root directory. The output path in default angular.json should look like this (irrelevant lines removed):
{
"projects": {
"my-app-name": {
"architect": {
"options": {
"outputPath": "dist/my-app-name",
Obviously, this will generate your app in WORKSPACE/dist/my-app-name. Modify outputPath if you prefer another directory.
You can overwrite the output path using command line arguments (e.g. for CI jobs):
ng build -op dist/example
ng build --output-path=dist/example
S.a. https://github.com/angular/angular-cli/wiki/build
Setting the output path, will tell angular where to place the "compiled" files but however you change the output path, when running the app, angular will still assume that the app is hosted in the webserver's document root.
To make it work in a sub directory, you'll have to set the base href.
In angular.json:
{
"projects": {
"my-app-name": {
"architect": {
"options": {
"baseHref": "/my-folder/",
Cli:
ng build --base-href=/my-folder/
If you don't know where the app will be hosted on build time, you can change base tag in generated index.html.
Here's an example how we do it in our docker container:
entrypoint.sh
if [ -n "${BASE_PATH}" ]
then
files=( $(find . -name "index.html") )
cp -n "${files[0]}" "${files[0]}.org"
cp "${files[0]}.org" "${files[0]}"
sed -i "s*<base href=\"/\">*<base href=\"${BASE_PATH}\">*g" "${files[0]}"
fi
Here is one way to do this using css
HTML
<div class="imageWrapper">
<img src="http://lorempixel.com/300/300/" alt="" />
<a href="http://google.com" class="cornerLink">Link</a>
</div>?
CSS
.imageWrapper {
position: relative;
width: 300px;
height: 300px;
}
.imageWrapper img {
display: block;
}
.imageWrapper .cornerLink {
opacity: 0;
position: absolute;
bottom: 0px;
left: 0px;
right: 0px;
padding: 2px 0px;
color: #ffffff;
background: #000000;
text-decoration: none;
text-align: center;
-webkit-transition: opacity 500ms;
-moz-transition: opacity 500ms;
-o-transition: opacity 500ms;
transition: opacity 500ms;
}
.imageWrapper:hover .cornerLink {
opacity: 0.8;
}
Or if you just want it in the bottom left corner:
You can use this class : TouchImageView
but i only wanted the for statement to be attached to the if statement, not the else if statements as well.
Well get rid of the else
then. If the else if
is not supposed to be part of the for
then write it as:
for(int i=0; i<something_in_the_array.length;i++)
if(whatever_value==(something_in_the_array[i]))
{
value=2;
break;
}
if(whatever_value==2)
{
value=3;
break; // redundant now
}
else if(whatever_value==3)
{
value=4;
break; // redundant now
}
Having said that:
else
part in the loop doesn't seem to make a lot of sense here,Finally, braces are less obtrusive if you put the opening brace on the end of the previous line; e.g.
if (something) {
doSomething();
}
rather than:
if (something)
{
doSomething();
}
You can use JavaScript native promises with Node JS.
My Cloud 9 code link: https://ide.c9.io/adx2803/native-promises-in-node
/**
* Created by dixit-lab on 20/6/16.
*/
var express = require('express');
var request = require('request'); //Simplified HTTP request client.
var app = express();
function promisify(url) {
return new Promise(function (resolve, reject) {
request.get(url, function (error, response, body) {
if (!error && response.statusCode == 200) {
resolve(body);
}
else {
reject(error);
}
})
});
}
//get all the albums of a user who have posted post 100
app.get('/listAlbums', function (req, res) {
//get the post with post id 100
promisify('http://jsonplaceholder.typicode.com/posts/100').then(function (result) {
var obj = JSON.parse(result);
return promisify('http://jsonplaceholder.typicode.com/users/' + obj.userId + '/albums')
})
.catch(function (e) {
console.log(e);
})
.then(function (result) {
res.end(result);
})
})
var server = app.listen(8081, function () {
var host = server.address().address
var port = server.address().port
console.log("Example app listening at http://%s:%s", host, port)
})
//run webservice on browser : http://localhost:8081/listAlbums
Old Answer it is kind of confusing. It gives you the LOCATIONS (all of them) of where your statment is true.
so:
>>> a = np.arange(100)
>>> np.where(a > 30)
(array([31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47,
48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 64,
65, 66, 67, 68, 69, 70, 71, 72, 73, 74, 75, 76, 77, 78, 79, 80, 81,
82, 83, 84, 85, 86, 87, 88, 89, 90, 91, 92, 93, 94, 95, 96, 97, 98,
99]),)
>>> np.where(a == 90)
(array([90]),)
a = a*40
>>> np.where(a > 1000)
(array([26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42,
43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59,
60, 61, 62, 63, 64, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74, 75, 76,
77, 78, 79, 80, 81, 82, 83, 84, 85, 86, 87, 88, 89, 90, 91, 92, 93,
94, 95, 96, 97, 98, 99]),)
>>> a[25]
1000
>>> a[26]
1040
I use it as an alternative to list.index(), but it has many other uses as well. I have never used it with 2D arrays.
http://docs.scipy.org/doc/numpy/reference/generated/numpy.where.html
New Answer It seems that the person was asking something more fundamental.
The question was how could YOU implement something that allows a function (such as where) to know what was requested.
First note that calling any of the comparison operators do an interesting thing.
a > 1000
array([False, False, False, False, False, False, False, False, False,
False, False, False, False, False, False, False, False, False,
False, False, False, False, False, False, False, False, True,
True, True, True, True, True, True, True, True, True,
True, True, True, True, True, True, True, True, True,
True, True, True, True, True, True, True, True, True,
True, True, True, True, True, True, True, True, True,
True, True, True, True, True, True, True, True, True,
True, True, True, True, True, True, True, True, True,
True, True, True, True, True, True, True, True, True,
True`, True, True, True, True, True, True, True, True, True], dtype=bool)`
This is done by overloading the "__gt__" method. For instance:
>>> class demo(object):
def __gt__(self, item):
print item
>>> a = demo()
>>> a > 4
4
As you can see, "a > 4" was valid code.
You can get a full list and documentation of all overloaded functions here: http://docs.python.org/reference/datamodel.html
Something that is incredible is how simple it is to do this. ALL operations in python are done in such a way. Saying a > b is equivalent to a.gt(b)!
I shall refer to the same sample of data as posted in the question:
import numpy as np
import pandas as pd
df = pd.DataFrame(np.random.randn(8, 4), columns=['A','B','C','D'])
print('The original data frame is: \n{}'.format(df))
Running this code will give you
The original data frame is:
A B C D
0 0.494824 -0.328480 0.818117 0.100290
1 0.239037 0.954912 -0.186825 -0.651935
2 -1.818285 -0.158856 0.359811 -0.345560
3 -0.070814 -0.394711 0.081697 -1.178845
4 -1.638063 1.498027 -0.609325 0.882594
5 -0.510217 0.500475 1.039466 0.187076
6 1.116529 0.912380 0.869323 0.119459
7 -1.046507 0.507299 -0.373432 -1.024795
Now you wish to append a new row to this data frame, which doesn't need to be copy of any other row in the data frame. @Alon suggested an interesting approach to use df.loc
to append a new row with different index. The issue, however, with this approach is if there is already a row present at that index, it will be overwritten by new values. This is typically the case for datasets when row index is not unique, like store ID in transaction datasets. So a more general solution to your question is to create the row, transform the new row data into a pandas series, name it to the index you want to have and then append it to the data frame. Don't forget to overwrite the original data frame with the one with appended row. The reason is df.append
returns a view of the dataframe and does not modify its contents. Following is the code:
row = pd.Series({'A':10,'B':20,'C':30,'D':40},name=3)
df = df.append(row)
print('The new data frame is: \n{}'.format(df))
Following would be the new output:
The new data frame is:
A B C D
0 0.494824 -0.328480 0.818117 0.100290
1 0.239037 0.954912 -0.186825 -0.651935
2 -1.818285 -0.158856 0.359811 -0.345560
3 -0.070814 -0.394711 0.081697 -1.178845
4 -1.638063 1.498027 -0.609325 0.882594
5 -0.510217 0.500475 1.039466 0.187076
6 1.116529 0.912380 0.869323 0.119459
7 -1.046507 0.507299 -0.373432 -1.024795
3 10.000000 20.000000 30.000000 40.000000
The error message the OP is encountering is just an Eclipse feature. If you are willing to tie your code to a specific maker (and even version) of the JVM, you can effectively use method sun.reflect.Reflection.getCallerClass()
. You can then compile the code outside of Eclipse or configure it not to consider this diagnostic an error.
The worse Eclipse configuration is to disable all occurrences of the error by:
Project Properties
/ Java Compiler
/ Errors/Warnings
/ Enable project specific settings
set to checked / Deprecated and restrited API
/ Forbidden reference (access rules)
set to Warning
or Ignore
.
The better Eclipse configuration is to disable a specific occurrence of the error by:
Project Properties
/ Java Build Path
/ Libraries
/ JRE System Library
expand / Access rules:
select / Edit...
/ Add...
/ Resolution:
set to Discouraged
or Accessible
/ Rule Pattern
set to sun/reflect/Reflection
.
In Kotlin you can use deleteRecursively()
extension from kotlin.io
package
val someDir = File("/path/to/dir")
someDir.deleteRecursively()
i resolved by doing below 2 easy steps :
step 1: git reset Head step 2: git add .
Doing Project
-> Clean...
fixed it for me.
My eclipse had stopped working so I cleaned workspace
directory and after I run eclipse when I import the project I had this problem. Other solutions suggested here didn't work.
Perhaps your Apache is bounded to localhost only. Look in your apache configuration file for:
Listen 127.0.0.1:80
If you found it, replace it for:
Listen 80
Add Days in Date in SQL
DECLARE @NEWDOB DATE=null
SET @NEWDOB= (SELECT DOB, DATEADD(dd,45,DOB)AS NEWDOB FROM tbl_Employees)
As noted in a prior answer, although git merge-base
works,
$ git merge-base myfeature develop
050dc022f3a65bdc78d97e2b1ac9b595a924c3f2
If myfeature
is the current branch, as is common, you can use --fork-point
:
$ git merge-base --fork-point develop
050dc022f3a65bdc78d97e2b1ac9b595a924c3f2
This argument works only in sufficiently recent versions of git. Unfortunately it doesn't always work, however, and it is not clear why. Please refer to the limitations noted toward the end of this answer.
For full commit info, consider:
$ git log -1 $(git merge-base --fork-point develop)
In your statement, you are comparing a string called start_date with the time.
If start_date is a column, it should either be
SELECT * FROM `la_schedule` WHERE start_date >'2012-11-18';
(no apostrophe) or
SELECT * FROM `la_schedule` WHERE `start_date` >'2012-11-18';
(with backticks).
Hope this helps.
Lists and Maps are different data structures. Maps are used for when you want to associate a key with a value and Lists are an ordered collection.
Map is an interface in the Java Collection Framework and a HashMap is one implementation of the Map interface. HashMap are efficient for locating a value based on a key and inserting and deleting values based on a key. The entries of a HashMap are not ordered.
ArrayList and LinkedList are an implementation of the List interface. LinkedList provides sequential access and is generally more efficient at inserting and deleting elements in the list, however, it is it less efficient at accessing elements in a list. ArrayList provides random access and is more efficient at accessing elements but is generally slower at inserting and deleting elements.
Local storage: It keeps store the user information data without expiration date this data will not be deleted when user closed the browser windows it will be available for day, week, month and year.
In Local storage can store 5-10mb offline data.
//Set the value in a local storage object
localStorage.setItem('name', myName);
//Get the value from storage object
localStorage.getItem('name');
//Delete the value from local storage object
localStorage.removeItem(name);//Delete specifice obeject from local storege
localStorage.clear();//Delete all from local storege
Session Storage: It is same like local storage date except it will delete all windows when browser windows closed by a web user.
In Session storage can store upto 5 mb data
//set the value to a object in session storege
sessionStorage.myNameInSession = "Krishna";
Session: A session is a global variable stored on the server. Each session is assigned a unique id which is used to retrieve stored values.
Cookies: Cookies are data, stored in small text files as name-value pairs, on your computer. Once a cookie has been set, all page requests that follow return the cookie name and value.
I've encountered like this in Hybris.
1.2 If yes, then you need to change your properties in project.properties
1.3 Change your address, any available address. In my case, I changed from 8000 to 8080. then save.
java -Xdebug -Xrunjdwp:server=y,transport=dt_socket,address=8080,suspend=n yourServer
In your console, rebuild your ant using command 'ant all'
Then debug again, using the command 'hybrisserver.bat debug'
Download Microsoft Drivers for PHP for SQL Server. Extract the files and use one of:
File Thread Safe VC Bulid
php_sqlsrv_53_nts_vc6.dll No VC6
php_sqlsrv_53_nts_vc9.dll No VC9
php_sqlsrv_53_ts_vc6.dll Yes VC6
php_sqlsrv_53_ts_vc9.dll Yes VC9
You can see the Thread Safety status in phpinfo().
Add the correct file to your ext directory and the following line to your php.ini:
extension=php_sqlsrv_53_*_vc*.dll
Use the filename of the file you used.
As Gordon already posted this is the new Extension from Microsoft and uses the sqlsrv_* API instead of mssql_*
Update:
On Linux you do not have the requisite drivers and neither the SQLSERV Extension.
Look at Connect to MS SQL Server from PHP on Linux? for a discussion on this.
In short you need to install FreeTDS and YES you need to use mssql_* functions on linux. see update 2
To simplify things in the long run I would recommend creating a wrapper class with requisite functions which use the appropriate API (sqlsrv_* or mssql_*) based on which extension is loaded.
Update 2: You do not need to use mssql_* functions on linux. You can connect to an ms sql server using PDO + ODBC + FreeTDS. On windows, the best performing method to connect is via PDO + ODBC + SQL Native Client since the PDO + SQLSRV driver can be incredibly slow.
There's some great information about this here: https://bugzilla.mozilla.org/show_bug.cgi?id=857142
Still experimenting but so far a minimally invasive solution, aimed only at FF is:
body {
-moz-osx-font-smoothing: grayscale;
}
It has to be a constant - the value has to be computable at the time that the procedure is created, and that one computation has to provide the value that will always be used.
Look at the definition of sys.all_parameters
:
default_value
sql_variant
Ifhas_default_value
is 1, the value of this column is the value of the default for the parameter; otherwise,NULL
.
That is, whatever the default for a parameter is, it has to fit in that column.
As Alex K pointed out in the comments, you can just do:
CREATE PROCEDURE [dbo].[problemParam]
@StartDate INT = NULL,
@EndDate INT = NULL
AS
BEGIN
SET @StartDate = COALESCE(@StartDate,CONVERT(INT,(CONVERT(CHAR(8),GETDATE()-130,112))))
provided that NULL
isn't intended to be a valid value for @StartDate
.
As to the blog post you linked to in the comments - that's talking about a very specific context - that, the result of evaluating GETDATE()
within the context of a single query is often considered to be constant. I don't know of many people (unlike the blog author) who would consider a separate expression inside a UDF to be part of the same query as the query that calls the UDF.
It's all about the selector. You can change your code to be something like this:
<div class="formbuilder">
<div class="active">Heading</div>
<div>1</div>
<div>2</div>
<div>3</div>
<div>4</div>
</div>
Then use this javascript:
$(document).ready(function () {
$('.formbuilder div').on('click', function () {
$('.formbuilder div').removeClass('active');
$(this).addClass('active');
});
});
The example in a working jsfiddle
See this api about the selector I used: http://api.jquery.com/descendant-selector/
Just try this
android:windowSoftInputMode="adjustNothing"
in the
activity
section of your manifest. Yes, it adjusts nothings, which means the editText will stay where it is when IME is opening. But that's just an little inconvenience that still completely solves the problem of losing focus.
This is my silver bullet when ever the moment of confusion bubbles in.(Call it as first thing in main). Maybe for example JVM is slipped to be different version by IDE. This static function searches current process PID and opens VisualVM on that pid. Confusion stops right there because you want it all and you get it...
public static void callJVisualVM() {
System.out.println("USER:DIR!:" + System.getProperty("user.dir"));
//next search current jdk/jre
String jre_root = null;
String start = "vir";
try {
java.lang.management.RuntimeMXBean runtime =
java.lang.management.ManagementFactory.getRuntimeMXBean();
String jvmName = runtime.getName();
System.out.println("JVM Name = " + jvmName);
long pid = Long.valueOf(jvmName.split("@")[0]);
System.out.println("JVM PID = " + pid);
Runtime thisRun = Runtime.getRuntime();
jre_root = System.getProperty("java.home");
System.out.println("jre_root:" + jre_root);
start = jre_root.concat("\\..\\bin\\jvisualvm.exe " + "--openpid " + pid);
thisRun.exec(start);
} catch (Exception e) {
System.getProperties().list(System.out);
e.printStackTrace();
}
}
You can simply play a setted ringtone with this:
Uri notification = RingtoneManager.getDefaultUri(RingtoneManager.TYPE_NOTIFICATION);
Ringtone r = RingtoneManager.getRingtone(getApplicationContext(), notification);
r.play();
You can achieve that by redirecting the form's action
to an invisible <iframe>
. It doesn't require any JavaScript or any other type of scripts.
<iframe name="dummyframe" id="dummyframe" style="display: none;"></iframe>
<form action="submitscript.php" target="dummyframe">
<!-- Form body here -->
</form>
Without java.io.*
it can be done like this.
String trace = e.toString() + "\n";
for (StackTraceElement e1 : e.getStackTrace()) {
trace += "\t at " + e1.toString() + "\n";
}
And then the trace
variable holds your stack trace. Output also holds the initial cause, the output is identical to printStackTrace()
Example, printStackTrace()
yields:
java.io.FileNotFoundException: / (Is a directory)
at java.io.FileOutputStream.open0(Native Method)
at java.io.FileOutputStream.open(FileOutputStream.java:270)
at java.io.FileOutputStream.<init>(FileOutputStream.java:213)
at java.io.FileOutputStream.<init>(FileOutputStream.java:101)
at Test.main(Test.java:9)
The trace
String holds, when printed to stdout
java.io.FileNotFoundException: / (Is a directory)
at java.io.FileOutputStream.open0(Native Method)
at java.io.FileOutputStream.open(FileOutputStream.java:270)
at java.io.FileOutputStream.<init>(FileOutputStream.java:213)
at java.io.FileOutputStream.<init>(FileOutputStream.java:101)
at Test.main(Test.java:9)
You can check for NaN by using var != var
. NaN
does not equal NaN
.
EDIT: This is probably by far the worst method. It's confusing, terrible for readability, and overall bad practice.
Try using following command. I haven't tried it but I think it should work.
openssl pkcs8 -topk8 -inform PEM -outform DER -in filename -out filename -nocrypt
If you have a list of column names in data.table, you want to change the class of do:
convert_to_character <- c("Quarter", "value")
dt[, convert_to_character] <- dt[, lapply(.SD, as.character), .SDcols = convert_to_character]
For Python 3:
>>> exec(open("helloworld.py").read())
Make sure that you're in the correct directory before running the command.
To run a file from a different directory, you can use the below command:
with open ("C:\\Users\\UserName\\SomeFolder\\helloworld.py", "r") as file:
exec(file.read())
In command mode: : + 1 will take you to first line
Best practice is using @NaturalId annotation. It can be used as the business key for some cases it is too complicated, so some fields are using as the identifier in the real world. For example, I have user class with user id as primary key, and email is also unique field. So we can use email as our natural id
@Entity
@Table(name="user")
public class User {
@Id
@Column(name="id")
private int id;
@NaturalId
@Column(name="email")
private String email;
@Column(name="name")
private String name;
}
To get our record, just simply use 'session.byNaturalId()'
Session session = sessionFactory.getCurrentSession();
User user = session.byNaturalId(User.class)
.using("email","[email protected]")
.load()
In order to download that driver you must have a license to SPSS. For those who do not, there is an open source tool that is very much like SPSS and will allow you to import SAV files and export them to CSV.
Here's the software
And here are the steps to export the data.
docker exec -ti 'CONTAINER_NAME' sh
or
docker exec -ti 'CONTAINER_ID' sh
Look how I format my date $jour in the parameters. It depends if you use a expr()->like or a expr()->lte
$qb
->select('e')
->from('LdbPlanningBundle:EventEntity', 'e')
->where(
$qb->expr()->andX(
$qb->expr()->orX(
$qb->expr()->like('e.start', ':jour1'),
$qb->expr()->like('e.end', ':jour1'),
$qb->expr()->andX(
$qb->expr()->lte('e.start', ':jour2'),
$qb->expr()->gte('e.end', ':jour2')
)
),
$qb->expr()->eq('e.user', ':user')
)
)
->andWhere('e.user = :user ')
->setParameter('user', $user)
->setParameter('jour1', '%'.$jour->format('Y-m-d').'%')
->setParameter('jour2', $jour->format('Y-m-d'))
->getQuery()
->getArrayResult()
;
Based on this blog, one could share a docker image without a docker registry by executing:
docker save --output latestversion-1.0.0.tar dockerregistry/latestversion:1.0.0
Once this command has been completed, one could copy the image to a server and import it as follows:
docker load --input latestversion-1.0.0.tar
With recent version of Pandas, you can do
df.N.hist(by=df.Letter)
Just like with the solutions above, the axes will be different for each subplot. I have not solved that one yet.
One possible simplification would be to subclass AuthorizeAttribute
:
public class RolesAttribute : AuthorizeAttribute
{
public RolesAttribute(params string[] roles)
{
Roles = String.Join(",", roles);
}
}
Usage:
[Roles("members", "admin")]
Semantically it is the same as Jim Schmehil's answer.
You can create like this and you can add action also like this....
import UIKit
let myButton = UIButton(frame: CGRect(x: 0, y: 0, width: 50, height: 50))
init(nibName nibNameOrNil: String!, bundle nibBundleOrNil: NSBundle!)
{ super.init(nibName: nibName, bundle: nibBundle)
myButton.targetForAction("tappedButton:", withSender: self)
}
func tappedButton(sender: UIButton!)
{
println("tapped button")
}
The simplest way I found is to use BitmapDescriptorFactory.defaultMarker() the documentation even has an example of setting the color. From my own code:
MarkerOptions marker = new MarkerOptions()
.title(formatInfo(data))
.icon(BitmapDescriptorFactory.defaultMarker(BitmapDescriptorFactory.HUE_AZURE))
.position(new LatLng(data.getLatitude(), data.getLongitude()))
Something that just came out about a month ago is "Create React Native App," an awesome boilerplate that allows you (with minimal effort) to show what your app looks like live on your mobile device (ANY with a camera) using the Expo app. It not only has live updates, but it will allow you to see the console logs in your terminal just like when developing for the web, rather than having to use the browser like we did with React Native before.
You would, of course, have to make a new project with that boilerplate... but if you need to migrate your files over, that shouldn't be a problem. Give it a shot.
Edit: Actually it doesn't even require a camera. I said that for scanning a QR code, but you can also type out something to sync it up with your server, not just a QR code.
You have to use @BotFather, send it command: /setjoingroups There will be dialog like this:
YOU: /setjoingroups
BotFather: Choose a bot to change group membership settings.
YOU: @YourBot
BotFather: 'Enable' - bot can be added to groups. 'Disable' - block group invitations, the bot can't be added to groups. Current status is: DISABLED
YOU: Enable
BotFather: Success! The new status is: ENABLED.
After this you will see button "Add to Group" in your bot's profile.
https://github.com/app-z/Json-to-SQLite
At first generate Plain Old Java Objects from JSON http://www.jsonschema2pojo.org/
Main method
void createDb(String dbName, String tableName, List dataList, Field[] fields){ ...
Fields name will create dynamically
The compiler will start doing very clever things with optimisations turned on. The debugger will show the code jumping forward and backwards alot due to the optimized way variables are stored in registers. This is probably the reason why you can't set your variable (or in some cases see its value) as it has been cleverly distributed between registers for speed, rather than having a direct memory location that the debugger can access.
Compile without optimisations?
You can try hfexcel Human Friendly object-oriented python library based on XlsxWriter:
from hfexcel import HFExcel
hf_workbook = HFExcel.hf_workbook('example.xlsx', set_default_styles=False)
hf_workbook.add_style(
"headline",
{
"bold": 1,
"font_size": 14,
"font": "Arial",
"align": "center"
}
)
sheet1 = hf_workbook.add_sheet("sheet1", name="Example Sheet 1")
column1, _ = sheet1.add_column('headline', name='Column 1', width=2)
column1.add_row(data='Column 1 Row 1')
column1.add_row(data='Column 1 Row 2')
column2, _ = sheet1.add_column(name='Column 2')
column2.add_row(data='Column 2 Row 1')
column2.add_row(data='Column 2 Row 2')
column3, _ = sheet1.add_column(name='Column 3')
column3.add_row(data='Column 3 Row 1')
column3.add_row(data='Column 3 Row 2')
# In order to get a row with coordinates:
# sheet[column_index][row_index] => row
print(sheet1[1][1].data)
assert(sheet1[1][1].data == 'Column 2 Row 2')
hf_workbook.save()
Very nice pdf about many GIT secrets.
Add is same as svn's add (how ever sometimes it is used to mark file resolved).
Commit also is same as svn's , but it commit change into your local repository.
In theory, there's nothing preventing you from sending a request body in a GET
request. The HTTP protocol allows it, but have no defined semantics, so it's up to you to document what exactly is going to happen when a client sends a GET
payload. For instance, you have to define if parameters in a JSON body are equivalent to querystring parameters or something else entirely.
However, since there are no clearly defined semantics, you have no guarantee that implementations between your application and the client will respect it. A server or proxy might reject the whole request, or ignore the body, or anything else. The REST way to deal with broken implementations is to circumvent it in a way that's decoupled from your application, so I'd say you have two options that can be considered best practices.
The simple option is to use POST
instead of GET
as recommended by other answers. Since POST
is not standardized by HTTP, you'll have to document how exactly that's supposed to work.
Another option, which I prefer, is to implement your application assuming the GET
payload is never tampered with. Then, in case something has a broken implementation, you allow clients to override the HTTP method with the X-HTTP-Method-Override
, which is a popular convention for clients to emulate HTTP methods with POST
. So, if a client has a broken implementation, it can write the GET
request as a POST
, sending the X-HTTP-Method-Override: GET
method, and you can have a middleware that's decoupled from your application implementation and rewrites the method accordingly. This is the best option if you're a purist.
Create a css class that applies the row color, and use jQuery to toggle the class on/off:
CSS:
.selected {
background-color: blue;
}
jQuery:
$('#data tr').on('click', function() {
$(this).toggleClass('selected');
});
The first click will add the class (making the background color blue), and the next click will remove the class, reverting it to whatever it was before. Repeat!
In terms of the two CSS classes you already have, I would change the .nonhighlighted
class to apply to all rows of the table by default, then toggle the .highlighted
on and off:
<style type="text/css">
.highlighted {
background: red;
}
#data tr {
background: white;
}
</style>
$('#data tr').on('click', function() {
$(this).toggleClass('highlighted');
});
Taking it further you could even parse on the fly
e.g.
& "my.exe" | %{
if ($_ -match 'OK')
{ Write-Host $_ -f Green }
else if ($_ -match 'FAIL|ERROR')
{ Write-Host $_ -f Red }
else
{ Write-Host $_ }
}
There is a new project, RazorPDF which can be used from ASP.NET MVC. It is available as nuget package (search for RazorPDF).
Here is more info: http://nyveldt.com/blog/post/Introducing-RazorPDF
IMPORTANT UPDATE as @DenNukem pointed out, it depends on iTextsharp, I forgot to edit answer when I found that out (when I tried to use it), so if your project is not open source and eligible for their AGPL licence, it will probably be too expensive to use.
sed -i 's/[[:blank:]]\{1,\}$//' YourFile
[:blank:] is for space, tab mainly and {1,} to exclude 'no space at the end' of the substitution process (no big significant impact if line are short and file are small)
Pretty sure pk_OrderID is the PK of AC_Shipping_Addresses
And you are trying to insert a duplicate via the _Order.OrderNumber
Do a
select * from AC_Shipping_Addresses where pk_OrderID = 165863;
or select count(*) ....
Pretty sure you will get a row returned.
What it is telling you is you are already using pk_OrderID = 165863 and cannot have another row with that value.
if you want to not insert if there is a row
insert into table (pk, value)
select 11 as pk, 'val' as value
where not exists (select 1 from table where pk = 11)
APC definitely. It's written by the PHP guys, so even though it might not share the highest speeds, you can bet on the fact it's the highest quality.
Plus you get some other nifty features I use all the time (http://www.php.net/apc).
I worked around this by using UriBuilder instead.
UriBuilder builder = new UriBuilder(slct.Text);
if (DeleteFileOnServer(builder.Uri))
{
...
}
You can try DBVisualizer some features are not free, but you can get an evaluate license...
datetime have comparison capability
>>> import datetime
>>> import time
>>> a = datetime.datetime.now()
>>> time.sleep(2.0)
>>> b = datetime.datetime.now()
>>> print a < b
True
>>> print a == b
False
I forgot that I had already an unused labs
branch. Deleting it solved my problem:
git branch -d labs
git checkout -b labs/feature
Explanation:
Each name can only be a parent branch or a normal branch, not both. Thats why the branches labs
and labs/feature
can't exists both at the same time.
The reason: Branches are stored in the file system and there you also can't have a file labs
and a directory labs
at the same level.