You can do this in a number of ways. You can use databinding (typical initialized after InitializeComponent();)
textBox1.DataBindings.Add(new Binding("Text", yourBindingSource,
"TableName.ColumnName", true, DataSourceUpdateMode.OnPropertyChanged));
or use a DataLayoutControl (if you are going to use textbox for editing, I really recommend spending some time to learn how to use this component.
or in FocusedRowChanged by assigning from one of these methods:
textBox1.Text = gridView1.GetDataRow(e.FocusedRowHandle)["Name"].ToString();
textBox1.Text = gridView1.GetFocusedDataRow()["Name"].ToString();
textBox1.Text = (gridView1.GetFocusedRow() as DataRowView).Row["Name"].ToString();
textBox1.Text = gridView1.GetFocusedRowCellValue("Name").ToString();
the shortest code is :
JLabel jLabelObject = new JLabel();
jLabelObject.setIcon(new ImageIcon(stringPictureURL));
stringPictureURL is PATH of image .
There are two important points to the Swift 2 error handling model: exhaustiveness and resiliency. Together, they boil down to your do
/catch
statement needing to catch every possible error, not just the ones you know you can throw.
Notice that you don't declare what types of errors a function can throw, only whether it throws at all. It's a zero-one-infinity sort of problem: as someone defining a function for others (including your future self) to use, you don't want to have to make every client of your function adapt to every change in the implementation of your function, including what errors it can throw. You want code that calls your function to be resilient to such change.
Because your function can't say what kind of errors it throws (or might throw in the future), the catch
blocks that catch it errors don't know what types of errors it might throw. So, in addition to handling the error types you know about, you need to handle the ones you don't with a universal catch
statement -- that way if your function changes the set of errors it throws in the future, callers will still catch its errors.
do {
let sandwich = try makeMeSandwich(kitchen)
print("i eat it \(sandwich)")
} catch SandwichError.NotMe {
print("Not me error")
} catch SandwichError.DoItYourself {
print("do it error")
} catch let error {
print(error.localizedDescription)
}
But let's not stop there. Think about this resilience idea some more. The way you've designed your sandwich, you have to describe errors in every place where you use them. That means that whenever you change the set of error cases, you have to change every place that uses them... not very fun.
The idea behind defining your own error types is to let you centralize things like that. You could define a description
method for your errors:
extension SandwichError: CustomStringConvertible {
var description: String {
switch self {
case NotMe: return "Not me error"
case DoItYourself: return "Try sudo"
}
}
}
And then your error handling code can ask your error type to describe itself -- now every place where you handle errors can use the same code, and handle possible future error cases, too.
do {
let sandwich = try makeMeSandwich(kitchen)
print("i eat it \(sandwich)")
} catch let error as SandwichError {
print(error.description)
} catch {
print("i dunno")
}
This also paves the way for error types (or extensions on them) to support other ways of reporting errors -- for example, you could have an extension on your error type that knows how to present a UIAlertController
for reporting the error to an iOS user.
Here is a list of examples for sending cookies - https://github.com/andriichuk/php-curl-cookbook#cookies
$curlHandler = curl_init();
curl_setopt_array($curlHandler, [
CURLOPT_URL => 'https://httpbin.org/cookies',
CURLOPT_RETURNTRANSFER => true,
CURLOPT_COOKIEFILE => $cookieFile,
CURLOPT_COOKIE => 'foo=bar;baz=foo',
/**
* Or set header
* CURLOPT_HTTPHEADER => [
'Cookie: foo=bar;baz=foo',
]
*/
]);
$response = curl_exec($curlHandler);
curl_close($curlHandler);
echo $response;
Elaborating a bit more on Taylor Gautier's reply (sorry, I dont have enough reputation to add a comment), I'd reply to Dean Richardson on how to do what he wanted, without any additional JS code. Pure CSS.
You would replace his .btn
with the following:
<a class="btn showdetails" data-toggle="collapse" data-target="#viewdetails"></a>
And add a small CSS for when the content is displayed:
.in.collapse+a.btn.showdetails:before {
content:'Hide details «';
}
.collapse+a.btn.showdetails:before {
content:'Show details »';
}
My suggestion:
$http({
method: 'DELETE',
url: '/roles/' + roleid,
data: {
user: userId
},
headers: {
'Content-type': 'application/json;charset=utf-8'
}
})
.then(function(response) {
console.log(response.data);
}, function(rejection) {
console.log(rejection.data);
});
You could use cURL:
<?php
//The url you wish to send the POST request to
$url = $file_name;
//The data you want to send via POST
$fields = [
'__VIEWSTATE ' => $state,
'__EVENTVALIDATION' => $valid,
'btnSubmit' => 'Submit'
];
//url-ify the data for the POST
$fields_string = http_build_query($fields);
//open connection
$ch = curl_init();
//set the url, number of POST vars, POST data
curl_setopt($ch,CURLOPT_URL, $url);
curl_setopt($ch,CURLOPT_POST, true);
curl_setopt($ch,CURLOPT_POSTFIELDS, $fields_string);
//So that curl_exec returns the contents of the cURL; rather than echoing it
curl_setopt($ch,CURLOPT_RETURNTRANSFER, true);
//execute post
$result = curl_exec($ch);
echo $result;
?>
I had the same error. Creating a new AVD with the appropriate API level solved my problem.
Right click on the Project name > Configure > Convert to Maven Project > click finish. Here you will add some dependencies to download and add your expected jar file.
This will create an auto-generated pom.xml file. Open that file in xml format in your eclipse editor. After build tag (</build>
) add your dependencies which you can copy from maven website and add them there. Now you are good to go. These dependencies will automatically add your required jar files.
If you are using a real device, and it is not rooted, then it is not possible to see your database in FileExplorer
, because, due to some security reason, that folder is locked in the Android system. And if you are using it in an emulator you will find it in FileExplorer
, /data/data/your package name/databases/yourdatabse.db.
IMPORTANT
Starting from Java 9 you cannot longer use reflection unless the package-info.java opens the module to reflection access.
By default reflection access to all packages in the module is denied.
Through this you can get absolute path of any file located in any directory.
File.join(Dir.pwd,'some-dir','some-file-name')
This will return
=> "/User/abc/xyz/some-dir/some-file-name"
For those interested in removing extension from filename, you can use https://nodejs.org/api/path.html#path_path_basename_path_ext
path.basename('/foo/bar/baz/asdf/quux.html', '.html');
Yes it is correct in Java there are several steps to make an array of objects:
Declaring and then Instantiating (Create memory to store '4' objects):
A[ ] arr = new A[4];
Initializing the Objects (In this case you can Initialize 4 objects of class A)
arr[0] = new A();
arr[1] = new A();
arr[2] = new A();
arr[3] = new A();
or
for( int i=0; i<4; i++ )
arr[i] = new A();
Now you can start calling existing methods from the objects you just made etc.
For example:
int x = arr[1].getNumber();
or
arr[1].setNumber(x);
with lombak 1.8.12, this worked for me
@Getter(value = lombok.AccessLevel.NONE)
@Setter(value = lombok.AccessLevel.NONE)
private int password;
None of these solutions worked for me, however I was able to fix it by taking the width and subtracting the width of the scroll bar. I'm not sure how cross-browser compatible this is.
The HTML specification never specifies any content formats. That's not its job. There's plenty of standards organizations that are more qualified than the W3C to specify video formats.
That's what content negotiation is for.
<img>
element.<style>
element.<script>
element.<object>
and embed
elements.<audio>
element.Why should it specify one for the <video>
element?
You need to use the css-property font-face to declare your font. Have a look at this fancy site: http://www.font-face.com/
Example:
@font-face {
font-family: MyHelvetica;
src: local("Helvetica Neue Bold"),
local("HelveticaNeue-Bold"),
url(MgOpenModernaBold.ttf);
font-weight: bold;
}
See also: MDN @font-face
If you really need it inline, for example because you are loading some user-defined colors dynamically, you can always add a <style>
element right before your content.
<style>#project-slide-1:before { color: #ff0000; }</style>
<div id="project-slide-1" class="project-slide"> ... </div>
Example use case with PHP and some (wordpress inspired) dummy functions:
<style>#project-slide-<?php the_ID() ?>:before { color: <?php the_field('color') ?>; }</style>
<div id="project-slide-<?php the_ID() ?>" class="project-slide"> ... </div>
Since HTML 5.2 it is valid to place style elements inside the body, although it is still recommend to place style elements in the head.
Reference: https://www.w3.org/TR/html52/document-metadata.html#the-style-element
Please see the python shell script which has been executed in sequence, here you will get the attributes of a class in string format separated by comma.
>>> class new_class():
... def __init__(self, number):
... self.multi = int(number)*2
... self.str = str(number)
...
>>> a = new_class(4)
>>> ",".join(a.__dict__.keys())
'str,multi'<br/>
I am using python 3.4
Here's how I do it with the standard Promise object.
// Given async function sayHi
function sayHi() {
return new Promise((resolve) => {
setTimeout(() => {
console.log('Hi');
resolve();
}, 3000);
});
}
// And an array of async functions to loop through
const asyncArray = [sayHi, sayHi, sayHi];
// We create the start of a promise chain
let chain = Promise.resolve();
// And append each function in the array to the promise chain
for (const func of asyncArray) {
chain = chain.then(func);
}
// Output:
// Hi
// Hi (After 3 seconds)
// Hi (After 3 more seconds)
I can't tell you what's best, but a tool I have used with success in the past was cx_Freeze. They recently updated (on Jan. 7, '17) to version 5.0.1 and it supports Python 3.6.
Here's the pypi https://pypi.python.org/pypi/cx_Freeze
The documentation shows that there is more than one way to do it, depending on your needs. http://cx-freeze.readthedocs.io/en/latest/overview.html
I have not tried it out yet, so I'm going to point to a post where the simple way of doing it was discussed. Some things may or may not have changed though.
You can achieve this also by using JavaScripts's native method. Its pretty simple and doesn't require any extra library to import.
<input type="text" name="date" placeholder="yyyy-mm-dd" onkeyup="
var date = this.value;
if (date.match(/^\d{4}$/) !== null) {
this.value = date + '-';
} else if (date.match(/^\d{4}\-\d{2}$/) !== null) {
this.value = date + '-';
}" maxlength="10">
Can't stand aside,
So we have linear system:
A1 * x + B1 * y = C1
A2 * x + B2 * y = C2
let's do it with Cramer's rule, so solution can be found in determinants:
x = Dx/D
y = Dy/D
where D is main determinant of the system:
A1 B1
A2 B2
and Dx and Dy can be found from matricies:
C1 B1
C2 B2
and
A1 C1
A2 C2
(notice, as C column consequently substitues the coef. columns of x and y)
So now the python, for clarity for us, to not mess things up let's do mapping between math and python. We will use array L
for storing our coefs A, B, C of the line equations and intestead of pretty x
, y
we'll have [0]
, [1]
, but anyway. Thus, what I wrote above will have the following form further in the code:
for D
L1[0] L1[1]
L2[0] L2[1]
for Dx
L1[2] L1[1]
L2[2] L2[1]
for Dy
L1[0] L1[2]
L2[0] L2[2]
Now go for coding:
line
- produces coefs A, B, C of line equation by two points provided,
intersection
- finds intersection point (if any) of two lines provided by coefs.
from __future__ import division
def line(p1, p2):
A = (p1[1] - p2[1])
B = (p2[0] - p1[0])
C = (p1[0]*p2[1] - p2[0]*p1[1])
return A, B, -C
def intersection(L1, L2):
D = L1[0] * L2[1] - L1[1] * L2[0]
Dx = L1[2] * L2[1] - L1[1] * L2[2]
Dy = L1[0] * L2[2] - L1[2] * L2[0]
if D != 0:
x = Dx / D
y = Dy / D
return x,y
else:
return False
Usage example:
L1 = line([0,1], [2,3])
L2 = line([2,3], [0,4])
R = intersection(L1, L2)
if R:
print "Intersection detected:", R
else:
print "No single intersection point detected"
(note: I'm assuming that all you know is object
or IList
or similar, and that the list could be any type at runtime)
If you know it is a List<T>
, then:
Type type = abc.GetType().GetGenericArguments()[0];
Another option is to look at the indexer:
Type type = abc.GetType().GetProperty("Item").PropertyType;
Using new TypeInfo:
using System.Reflection;
// ...
var type = abc.GetType().GetTypeInfo().GenericTypeArguments[0];
package com.test.springboot;
@SpringBootApplication
@ComponentScan(basePackages = "com.test.springboot")
public class SpringBoot1Application {
public static void main(String[] args) {
ApplicationContext context= SpringApplication.run(SpringBoot1Application.class, args);
=====================================================================
package com.test.springboot;
@Controller
public class StudentController {
@Autowired
private StudentDao studentDao;
@RequestMapping("/")
public String homePage() {
return "home";
}
The cited answer was wrong. You had to change
csvContent += index < infoArray.length ? dataString+ "\n" : dataString;
to
csvContent += dataString + "\n";
As to why the cited answer was wrong (funny it has been accepted!): index
, the second parameter of the forEach
callback function, is the index in the looped-upon array, and it makes no sense to compare this to the size of infoArray
, which is an item of said array (which happens to be an array too).
Six years have passed now since I wrote this answer. Many things have changed, including browsers. The following was part of the answer:
START of aged part
BTW, the cited code is suboptimal. You should avoid to repeatedly append to a string. You should append to an array instead, and do an array.join("\n") at the end. Like this:
var lineArray = [];
data.forEach(function (infoArray, index) {
var line = infoArray.join(",");
lineArray.push(index == 0 ? "data:text/csv;charset=utf-8," + line : line);
});
var csvContent = lineArray.join("\n");
END of aged part
(Keep in mind that the CSV case is a bit different from generic string concatenation, since for every string you also have to add the separator.)
Anyway, the above seems not to be true anymore, at least not for Chrome and Firefox (it seems to still be true for Safari, though).
To put an end to uncertainty, I wrote a jsPerf test that tests whether, in order to concatenate strings in a comma-separated way, it's faster to push them onto an array and join the array, or to concatenate them first with the comma, and then directly with the result string using the += operator.
Please follow the link and run the test, so that we have enough data to be able to talk about facts instead of opinions.
Here's a quick solution:
NSString *text = self.contentTextView.text;
NSArray *items = @[text];
UIActivityViewController *activity = [[UIActivityViewController alloc]
initWithActivityItems:items
applicationActivities:nil];
activity.excludedActivityTypes = @[UIActivityTypePostToWeibo];
if ([[UIDevice currentDevice] userInterfaceIdiom] == UIUserInterfaceIdiomPad) {
//activity.popoverPresentationController.sourceView = shareButtonBarItem;
activity.popoverPresentationController.barButtonItem = shareButtonBarItem;
[self presentViewController:activity animated:YES completion:nil];
}
[self presentViewController:activity animated:YES completion:nil];
If you are trying to use this with panels only (not accordeon), try this code:
<div class="panel panel-default">
<div class="panel-heading">
<h4 class="panel-title">
<a class="collapse-toggle" data-toggle="collapse" href="#collapseExample" aria-expanded="false" aria-controls="collapseExample">Panel heading with title</a>
</h4>
</div>
<div id="collapseExample" class="panel-collapse collapse in">
<div class="panel-body">
Panel content
</div>
</div>
</div>
Include an Setup Project (New Project > Other Project Types > Setup and Deployment > Visual Studio Installer
) in your solution. It has options to include the framework installer. Check out this Deployment Guide MSDN post.
I use Guiffy and it works well.
(source: guiffy.org)
You can approximate a rolling average by applying a weighted average on your input stream.
template <unsigned N>
double approxRollingAverage (double avg, double input) {
avg -= avg/N;
avg += input/N;
return avg;
}
This way, you don't need to maintain 1000 buckets. However, it is an approximation, so it's value will not match exactly with a true rolling average.
Edit: Just noticed @steveha's post. This is equivalent to the exponential moving average, with the alpha being 1/N (I was taking N to be 1000 in this case to simulate 1000 buckets).
Extent jQuery support
object:
jQuery.support.touch = 'ontouchend' in document;
And now you can check it anywhere, like this:
if( jQuery.support.touch )
// do touch stuff
It works fine for me: http://jsfiddle.net/qwertynl/htb9h/
My javascript:
var app = angular.module("myApp", [])
app.controller("MyCtrl", ['$scope', function($scope) {
$scope.telephone = []; // << remember to set this
}]);
Based on Matt Thompson's answer, here is a method with respective unit tests that works with Swift and Objective-c on iOS 7 and above (including iOS 9 which no longer let's you check the NSFoundationNumber):
+ (BOOL) isAtLeastOSVersion:(NSString *)osVersion
{
switch ([[UIDevice currentDevice].systemVersion compare:osVersion options:NSNumericSearch]) {
case NSOrderedSame:
case NSOrderedDescending:
return YES;
default:
return NO;
}
}
.
@interface ANFakeCurrDevice : NSObject
@property (nonatomic, strong) NSString *systemVersion;
@end
@implementation ANFakeCurrDevice
@end
@implementation MyHelperClassUnitTests
- (void)setUp {
[super setUp];
}
- (void)tearDown {
[super tearDown];
}
- (void)test_isAtLeastOSVersion
{
id deviceMock = [OCMockObject niceMockForClass:[UIDevice class]];
ANFakeCurrDevice *fakeCurrDevice = [ANFakeCurrDevice new];
fakeCurrDevice.systemVersion = @"99.9.9";
[[[deviceMock stub] andReturn:fakeCurrDevice] currentDevice];
XCTAssertTrue([[UIDevice currentDevice].systemVersion isEqualToString:@"99.9.9"]);
fakeCurrDevice.systemVersion = @"1.0.1";
XCTAssertTrue([ANConstants isAtLeastOSVersion:@"1"]);
XCTAssertTrue([ANConstants isAtLeastOSVersion:@"1.0"]);
XCTAssertTrue([ANConstants isAtLeastOSVersion:@"1.0.1"]);
XCTAssertFalse([ANConstants isAtLeastOSVersion:@"1.0.2"]);
XCTAssertFalse([ANConstants isAtLeastOSVersion:@"1.1.0"]);
XCTAssertFalse([ANConstants isAtLeastOSVersion:@"2"]);
XCTAssertFalse([ANConstants isAtLeastOSVersion:@"2.0"]);
XCTAssertFalse([ANConstants isAtLeastOSVersion:@"2.0.0"]);
XCTAssertFalse([ANConstants isAtLeastOSVersion:@"2.0.1"]);
XCTAssertFalse([ANConstants isAtLeastOSVersion:@"2.1.0"]);
fakeCurrDevice.systemVersion = @"8.4.0";
XCTAssertTrue([ANConstants isAtLeastOSVersion:@"7.0.1"]);
XCTAssertTrue([ANConstants isAtLeastOSVersion:@"8"]);
XCTAssertTrue([ANConstants isAtLeastOSVersion:@"8.4"]);
XCTAssertFalse([ANConstants isAtLeastOSVersion:@"8.4.1"]);
XCTAssertFalse([ANConstants isAtLeastOSVersion:@"8.4.2"]);
XCTAssertFalse([ANConstants isAtLeastOSVersion:@"9.0"]);
XCTAssertFalse([ANConstants isAtLeastOSVersion:@"9.0.1"]);
XCTAssertFalse([ANConstants isAtLeastOSVersion:@"9.0.2"]);
XCTAssertTrue([ANConstants isAtLeastOSVersion:@"8.4"] && ![ANConstants isAtLeastOSVersion:@"9.0"]);
fakeCurrDevice.systemVersion = @"8.4.1";
XCTAssertTrue([ANConstants isAtLeastOSVersion:@"8.4"] && ![ANConstants isAtLeastOSVersion:@"9.0"]);
}
@end
Define an Outlet:
@IBOutlet weak var pickerView: UIPickerView! // for example
Then in your viewWillAppear or your viewDidLoad, for example, you can use the following:
pickerView.selectRow(rowMin, inComponent: 0, animated: true)
pickerView.selectRow(rowSec, inComponent: 1, animated: true)
If you inspect the Swift 2.0 framework you'll see .selectRow
defined as:
func selectRow(row: Int, inComponent component: Int, animated: Bool)
option clicking .selectRow in Xcode displays the following:
TL;DR: When using functional idioms it's better to write functional code
As many people have pointed out, in Python lambdas assignment is not allowed. In general when using functional idioms your better off thinking in a functional manner which means wherever possible no side effects and no assignments.
Here is functional solution which uses a lambda. I've assigned the lambda to fn
for clarity (and because it got a little long-ish).
from operator import add
from itertools import ifilter, ifilterfalse
fn = lambda l, pred: add(list(ifilter(pred, iter(l))), [ifilterfalse(pred, iter(l)).next()])
objs = [Object(name=""), Object(name="fake_name"), Object(name="")]
fn(objs, lambda o: o.name != '')
You can also make this deal with iterators rather than lists by changing things around a little. You also have some different imports.
from itertools import chain, islice, ifilter, ifilterfalse
fn = lambda l, pred: chain(ifilter(pred, iter(l)), islice(ifilterfalse(pred, iter(l)), 1))
You can always reoganize the code to reduce the length of the statements.
Another way you can achieve the desired effect is to use this Material Search View library. It handles search history automatically and it's possible to provide search suggestions to the view as well.
Sample: (It's shown in Portuguese, but it also works in english and italian).
Before you can use this lib, you have to implement a class named MsvAuthority
inside the br.com.mauker
package on your app module, and it should have a public static String variable called CONTENT_AUTHORITY
. Give it the value you want and don't forget to add the same name on your manifest file. The lib will use this file to set the Content Provider authority.
Example:
MsvAuthority.java
package br.com.mauker;
public class MsvAuthority {
public static final String CONTENT_AUTHORITY = "br.com.mauker.materialsearchview.searchhistorydatabase";
}
AndroidManifest.xml
<?xml version="1.0" encoding="utf-8"?>
<manifest ...>
<application ... >
<provider
android:name="br.com.mauker.materialsearchview.db.HistoryProvider"
android:authorities="br.com.mauker.materialsearchview.searchhistorydatabase"
android:exported="false"
android:protectionLevel="signature"
android:syncable="true"/>
</application>
</manifest>
To use it, add the dependency:
compile 'br.com.mauker.materialsearchview:materialsearchview:1.2.0'
And then, on your Activity
layout file, add the following:
<br.com.mauker.materialsearchview.MaterialSearchView
android:id="@+id/search_view"
android:layout_width="match_parent"
android:layout_height="match_parent"/>
After that, you'll just need to get the MaterialSearchView
reference by using getViewById()
, and open it up or close it using MaterialSearchView#openSearch()
and MaterialSearchView#closeSearch()
.
P.S.: It's possible to open and close the view not only from the Toolbar
. You can use the openSearch()
method from basically any Button
, such as a Floating Action Button.
// Inside onCreate()
MaterialSearchView searchView = (MaterialSearchView) findViewById(R.id.search_view);
Button bt = (Button) findViewById(R.id.button);
bt.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
searchView.openSearch();
}
});
You can also close the view using the back button, doing the following:
@Override
public void onBackPressed() {
if (searchView.isOpen()) {
// Close the search on the back button press.
searchView.closeSearch();
} else {
super.onBackPressed();
}
}
For more information on how to use the lib, check the github page.
YouTube Help says that &autoplay=1
has to be after the video ID - I assume, immediately after.
The page will get reloaded if you don't want to use javascript
You absolutely can, I use this approach a lot w/ both JavaScript and PHP.
Field definition:
<input type="hidden" name="foo" value="<?php echo $var;?>" />
Access w/ PHP:
$_GET['foo'] or $_POST['foo']
Also: Don't forget to sanitize your inputs if they are going into a database. Feel free to use my routine: https://github.com/niczak/PHP-Sanitize-Post/blob/master/sanitize.php
Cheers!
Similar to Ghommey's answer, but this also supports old versions of IE and Firefox.
window.onbeforeunload = function (e) {
var message = "Your confirmation message goes here.",
e = e || window.event;
// For IE and Firefox
if (e) {
e.returnValue = message;
}
// For Safari
return message;
};
more generally, this could also look like this:
import multiprocessing
def chunks(l, n):
for i in range(0, len(l), n):
yield l[i:i + n]
numberOfThreads = 4
if __name__ == '__main__':
jobs = []
for i, param in enumerate(params):
p = multiprocessing.Process(target=f, args=(i,param))
jobs.append(p)
for i in chunks(jobs,numberOfThreads):
for j in i:
j.start()
for j in i:
j.join()
Of course, that way is quite cruel (since it waits for every process in a junk until it continues with the next chunk). Still it works well for approx equal run times of the function calls.
Let's assume you have: function.apply(thisArg, argArray )
The apply method invokes a function, passing in the object that will be bound to this and an optional array of arguments.
The slice() method selects a part of an array, and returns the new array.
So when you call Array.prototype.slice.apply(arguments, [0])
the array slice method is invoked (bind) on arguments.
you can run appache:
E:\wamp\bin\apache\apache2.4.9\bin\httpd.exe -d E:/wamp/bin/apache/apache2.4.9
after that see the log of error and solve it.
While other answers are correct that you cannot print the value until you evaluate the graph, they do not talk about one easy way of actually printing a value inside the graph, once you evaluate it.
The easiest way to see a value of a tensor whenever the graph is evaluated (using run
or eval
) is to use the Print
operation as in this example:
# Initialize session
import tensorflow as tf
sess = tf.InteractiveSession()
# Some tensor we want to print the value of
a = tf.constant([1.0, 3.0])
# Add print operation
a = tf.Print(a, [a], message="This is a: ")
# Add more elements of the graph using a
b = tf.add(a, a)
Now, whenever we evaluate the whole graph, e.g. using b.eval()
, we get:
I tensorflow/core/kernels/logging_ops.cc:79] This is a: [1 3]
string startTime = "7:00 AM";
string endTime = "2:00 PM";
TimeSpan duration = DateTime.Parse(endTime).Subtract(DateTime.Parse(startTime));
Console.WriteLine(duration);
Console.ReadKey();
Will output: 07:00:00.
It also works if the user input military time:
string startTime = "7:00";
string endTime = "14:00";
TimeSpan duration = DateTime.Parse(endTime).Subtract(DateTime.Parse(startTime));
Console.WriteLine(duration);
Console.ReadKey();
Outputs: 07:00:00.
To change the format: duration.ToString(@"hh\:mm")
More info at: http://msdn.microsoft.com/en-us/library/ee372287.aspx
Addendum:
Over the years it has somewhat bothered me that this is the most popular answer I have ever given; the original answer never actually explained why the OP's code didn't work despite the fact that it is perfectly valid. The only reason it gets so many votes is because the post comes up on Google when people search for a combination of the terms "C#", "timespan", and "between".
Consider explicitly setting the header in the $http.post (I put application/json, as I am not sure which of the two versions in your example is the working one, but you can use application/x-www-form-urlencoded if it's the other one):
$http.post("/customer/data/autocomplete", {term: searchString}, {headers: {'Content-Type': 'application/json'} })
.then(function (response) {
return response;
});
With Gson, you'd just need to do something like:
List<Video> videos = gson.fromJson(json, new TypeToken<List<Video>>(){}.getType());
You might also need to provide a no-arg constructor on the Video
class you're deserializing to.
You could create a custom HashMap class for that in php. example as shown below containing the basic HashMap attributes such as get and set.
class HashMap{
public $arr;
function init() {
function populate() {
return null;
}
// change to 999 for efficiency
$this->arr = array_map('populate', range(0, 9));
return $this->arr;
}
function get_hash($key) {
$hash = 0;
for ($i=0; $i < strlen($key) ; $i++) {
$hash += ord($key[$i]);
}
// arr index starts from 0
$hash_idx = $hash % (count($this->arr) - 1);
return $hash_idx;
}
function add($key, $value) {
$idx = $this->get_hash($key);
if ($this->arr[$idx] == null) {
$this->arr[$idx] = [$value];
} else{
$found = false;
$content = $this->arr[$idx];
$content_idx = 0;
foreach ($content as $item) {
// checking if they have same number of streams
if ($item == $value) {
$content[$content_idx] = [$value];
$found = true;
break;
}
$content_idx++;
}
if (!$found) {
// $value is already an array
array_push($content, $value);
// updating the array
$this->arr[$idx] = $content;
}
}
return $this->arr;
}
function get($key) {
$idx = $this->get_hash($key);
$content = $this->arr[$idx];
foreach ($content as $item) {
if ($item[1] == $key) {
return $item;
break;
}
}
}
}
Hope this was useful
Based on above solutions, here comes a extension class which you can use to serialize and deserialize any object. Any other XML attributions are up to you.
Just use it like this:
string s = new MyObject().Serialize(); // to serialize into a string
MyObject b = s.Deserialize<MyObject>();// deserialize from a string
internal static class Extensions
{
public static T Deserialize<T>(this string value)
{
var xmlSerializer = new XmlSerializer(typeof(T));
return (T)xmlSerializer.Deserialize(new StringReader(value));
}
public static string Serialize<T>(this T value)
{
if (value == null)
return string.Empty;
var xmlSerializer = new XmlSerializer(typeof(T));
using (var stringWriter = new StringWriter())
{
using (var xmlWriter = XmlWriter.Create(stringWriter, new XmlWriterSettings { Indent = true }))
{
xmlSerializer.Serialize(xmlWriter, value);
return stringWriter.ToString();
}
}
}
}
I have met a similar problem when checking emptiness in a component. In this case, the controller must define a method that actually performs the test and the view uses it:
function FormNumericFieldController(/*$scope, $element, $attrs*/ ) {
var ctrl = this;
ctrl.isEmptyObject = function(object) {
return angular.equals(object, {});
}
}
<!-- any validation error will trigger an error highlight -->
<span ng-class="{'has-error': !$ctrl.isEmptyObject($ctrl.formFieldErrorRef) }">
<!-- validated control here -->
</span>
if visible.
$("#Element").is(':visible');
if it's hidden.
$("#Element").is(':hidden');
To add a unique key use :
alter table your_table add UNIQUE(target_column_name);
To remove a unique key use:
alter table your_table drop INDEX target_column_name;
Its a really old thread, but here is my take on it. Rather than 2 different clauses, one greater than and less than. I use this below syntax for selecting records from A date. If you want a date range then previous answers are the way to go.
SELECT * FROM TABLE_NAME WHERE
DATEDIFF(DAY, DATEADD(DAY, X , CURRENT_TIMESTAMP), <column_name>) = 0
In the above case X will be -1 for yesterday's records
There are four options here:
Get virtualenv
set up. Each virtual environment you create will automatically have pip
.
Learn how to install Python packages manually—in most cases it's as simple as download, unzip, python setup.py install
, but not always.
I believe if you have 2 arrays of the same type that you want to combine into a third array, there's a very simple way to do that.
here's the code:
String[] theHTMLFiles = Directory.GetFiles(basePath, "*.html");
String[] thexmlFiles = Directory.GetFiles(basePath, "*.xml");
List<String> finalList = new List<String>(theHTMLFiles.Concat<string>(thexmlFiles));
String[] finalArray = finalList.ToArray();
I was facing same issue. I tried everything possible for a day, but nothing worked. The dependency which was causing problem was using lower compile sdk, target sdk and min sdk. I created library module for the project, copied all the sources and matched the sdk versions with application sdk versions. And finally it worked like a charm.
where row.name.StartsWith(q, true, System.Globalization.CultureInfo.CurrentCulture)
Old post, but I thought I would share my solution because there aren't many solutions out there for this issue.
If you're running an old Windows Server 2003 machine, you likely need to install a hotfix (KB938397).
This problem occurs because the Cryptography API 2 (CAPI2) in Windows Server 2003 does not support the SHA2 family of hashing algorithms. CAPI2 is the part of the Cryptography API that handles certificates.
https://support.microsoft.com/en-us/kb/938397
For whatever reason, Microsoft wants to email you this hotfix instead of allowing you to download directly. Here's a direct link to the hotfix from the email:
http://hotfixv4.microsoft.com/Windows Server 2003/sp3/Fix200653/3790/free/315159_ENU_x64_zip.exe
cURL is disabled for most hosting control panels for security reasons, but it's required for a lot of php applications. It's not unusual for a client to request it. Since the risk of enabling cURL is minimal, you are probably better off enabling it than losing a customer. It's simply a utility that helps php scripts fetch things using standard Internet URLs.
To enable cURL, you will remove curl_exec from the "disabled list" in the control panel php advanced settings. You will also find a disabled list in the various php.ini files; look in /etc/php.ini and other paths that might exist for your control panel. You will need to restart Apache to make the change take effect.
To confirm whether cURL is enabled or disabled, create a file somewhere in your system and paste the following contents.
<?php
echo '<pre>';
var_dump(curl_version());
echo '</pre>';
?>
Save the file as testcurl.php and then run it as a php script.
testcurl.php
If cURL is disabled you will see this error.
Fatal error: Call to undefined function curl_version() in testcurl.php on line 2
If cURL is enabled you will see a long list of attributes, like this.
array(9) {
["version_number"]=>
int(461570)
["age"]=>
int(1)
["features"]=>
int(540)
["ssl_version_number"]=>
int(9465919)
["version"]=>
string(6) "7.11.2"
["host"]=>
string(13) "i386-pc-win32"
["ssl_version"]=>
string(15) " OpenSSL/0.9.7c"
["libz_version"]=>
string(5) "1.1.4"
["protocols"]=>
array(9) {
[0]=>
string(3) "ftp"
[1]=>
string(6) "gopher"
[2]=>
string(6) "telnet"
[3]=>
string(4) "dict"
[4]=>
string(4) "ldap"
[5]=>
string(4) "http"
[6]=>
string(4) "file"
[7]=>
string(5) "https"
[8]=>
string(4) "ftps"
}
}
<input type="checkbox" value="" ng-model="t.IsPullPoint" onclick="return false;" onkeydown="return false;"><span class="cr"></span></label>
mkdir()
creates only one directory at a time, if it is parent that one only. other wise it can create the sub directory(if the specified path is existed only) and do not create any directories in between any two directories. so it can not create smultiple directories in one directory
mkdirs()
create the multiple directories(in between two directories also) at a time.
It makes sense to use requirejs with angularjs if you plan on lazy loading controllers and directives etc, while also combining multiple lazy dependencies into single script files for much faster lazy loading. RequireJS has an optimisation tool that makes the combining easy. See http://ify.io/using-requirejs-with-optimisation-for-lazy-loading-angularjs-artefacts/
For anyone in the future looking for an answer, I would like to give a much clearer answer to the question.
# for making a tuple
my_tuple = (89, 32)
my_tuple_with_more_values = (1, 2, 3, 4, 5, 6)
# to concatenate tuples
another_tuple = my_tuple + my_tuple_with_more_values
print(another_tuple)
# (89, 32, 1, 2, 3, 4, 5, 6)
# getting a value from a tuple is similar to a list
first_val = my_tuple[0]
second_val = my_tuple[1]
# if you have a function called my_tuple_fun that returns a tuple,
# you might want to do this
my_tuple_fun()[0]
my_tuple_fun()[1]
# or this
v1, v2 = my_tuple_fun()
Hope this clears things up further for those that need it.
For pipeline:
pipeline {
environment {
BRANCH_NAME = "${GIT_BRANCH.split("/")[1]}"
}
}
Does m
really need to be a data.frame()
or will a matrix()
suffice?
m <- matrix(0, ncol = 30, nrow = 2)
You can wrap a data.frame()
around that if you need to:
m <- data.frame(m)
or all in one line: m <- data.frame(matrix(0, ncol = 30, nrow = 2))
100% working for me ! After unset elements in array you can use this for re-indexing the array
$result=array_combine(range(1, count($your_array)), array_values($your_array));
You can customise the credits, changing the URL, text, Position etc. All the info is documented here: http://api.highcharts.com/highcharts/credits. To simply disable them altogether, use:
credits: {
enabled: false
},
For Java 8 you can use the following command line to get the heap space utilization in kB:
jstat -gc <PID> | tail -n 1 | awk '{split($0,a," "); sum=a[3]+a[4]+a[6]+a[8]; print sum}'
The command basically sums up:
You may also want to include the metaspace and the compressed class space utilization. In this case you have to add a[10] and a[12] to the awk sum.
Yes, you can use the CURRENT_TIMESTAMP()
command.
See here: Date and Time Functions
Initializations with (...)
in the class body is not allowed. Use {..}
or = ...
. Unfortunately since the respective constructor is explicit
and vector
has an initializer list constructor, you need a functional cast to call the wanted constructor
vector<string> name = decltype(name)(5);
vector<int> val = decltype(val)(5,0);
As an alternative you can use constructor initializer lists
Attribute():name(5), val(5, 0) {}
You would have to configure your webserver to utilize PHP as handler for .html
files. This is typically done by modifying your with AddHandler
to include .html
along with .php
.
Note that this could have a performance impact as this would cause ALL .html files to be run through PHP handler even if there is no PHP involved. So you might strongly consider using .php
extension on these files and adding a redirect as necessary to route requests to specific .html URL's to their .php equivalents.
You can use either del or pop to remove element from list based on index. Pop will print member it is removing from list, while list delete that member without printing it.
>>> a=[1,2,3,4,5]
>>> del a[1]
>>> a
[1, 3, 4, 5]
>>> a.pop(1)
3
>>> a
[1, 4, 5]
>>>
I’m pretty sure you don’t add the mime type as a JPEG on file downloads:
header('Content-Type: image/png');
These headers have never failed me:
$quoted = sprintf('"%s"', addcslashes(basename($file), '"\\'));
$size = filesize($file);
header('Content-Description: File Transfer');
header('Content-Type: application/octet-stream');
header('Content-Disposition: attachment; filename=' . $quoted);
header('Content-Transfer-Encoding: binary');
header('Connection: Keep-Alive');
header('Expires: 0');
header('Cache-Control: must-revalidate, post-check=0, pre-check=0');
header('Pragma: public');
header('Content-Length: ' . $size);
First you need to check which SDK your Emulator is using and as @kuya suggested you need to follow those steps and install the latest version of that SDK Build Tool. Suppose your Emulator uses SDK 27 then you need to install latest in that series. For me it was 27.0.3. After that the error was gone.
As per your requirement, Thread.Sleep
is perfectly fine to use because you are not sure when the data will be available so you might need to wait for the data to become available. I have slightly changed the logic of your function this might help you little further.
string SendCmd(string cmd, string ip, int port)
{
var client = new TcpClient(ip, port);
var data = Encoding.GetEncoding(1252).GetBytes(cmd);
var stm = client.GetStream();
stm.Write(data, 0, data.Length);
byte[] resp = new byte[2048];
var memStream = new MemoryStream();
int bytes = 0;
do
{
bytes = 0;
while (!stm.DataAvailable)
Thread.Sleep(20); // some delay
bytes = stm.Read(resp, 0, resp.Length);
memStream.Write(resp, 0, bytes);
}
while (bytes > 0);
return Encoding.GetEncoding(1252).GetString(memStream.ToArray());
}
Hope this helps!
Simply create an object of Base64 and use it to encode or decode, when using org.apache.commons.codec.binary.Base64 library
Base64 ed=new Base64();
String encoded=new String(ed.encode("Hello".getBytes()));
Replace "Hello" with the text to be encoded in String Format.
Base64 ed=new Base64();
String decoded=new String(ed.decode(encoded.getBytes()));
Here encoded is the String variable to be decoded
MVC doesn't do events. Just put a form and submit button on the page and the method decorated with the HttpPost attribute will process that request.
You might want to read a tutorial or two on how to create views, forms and controllers.
Please note that PrimeFaces supports the standard JSF 2.0+ keywords:
@this
Current component.@all
Whole view.@form
Closest ancestor form of current component.@none
No component.and the standard JSF 2.3+ keywords:
@child(n)
nth child.@composite
Closest composite component ancestor.@id(id)
Used to search components by their id ignoring the component tree structure and naming containers.@namingcontainer
Closest ancestor naming container of current component.@parent
Parent of the current component.@previous
Previous sibling.@next
Next sibling.@root
UIViewRoot instance of the view, can be used to start searching from the root instead the current component.But, it also comes with some PrimeFaces specific keywords:
@row(n)
nth row.@widgetVar(name)
Component with given widgetVar.And you can even use something called "PrimeFaces Selectors" which allows you to use jQuery Selector API. For example to process all inputs in a element with the CSS class myClass
:
process="@(.myClass :input)"
See:
I am using Ubuntu 16.04. For me it was the incorrect interpretor, which was by default using the virtual interpretor from project.
So, make sure you select the correct one, as the pip install will install the package to system python interpretor.
To view the differences going from the remote file to the local file:
git diff remotename/branchname:remote/path/file1.txt local/path/file1.txt
To view the differences in the other direction:
git diff HEAD:local/path/file1.txt remotename/branchname:remote/path/file1.txt
Basically you can diff any two files anywhere using this notation:
git diff ref1:path/to/file1 ref2:path/to/file2
As usual, ref1
and ref2
could be branch names, remotename/branchname, commit SHAs, etc.
Since beta Bootstrap 4 doesn't depend on Tether but Popper.js. All scripts (must be in this order):
<script src="https://code.jquery.com/jquery-3.3.1.slim.min.js"></script>
<script src="https://cdnjs.cloudflare.com/ajax/libs/popper.js/1.14.3/umd/popper.min.js"></script>
<script src="https://stackpath.bootstrapcdn.com/bootstrap/4.1.1/js/bootstrap.min.js"></script>
See the current documentation for the newest script versions.
Bootstrap 4 alpha needs Tether, so you need to include tether.min.js
before you include bootstrap.min.js
, eg.
<script src="https://npmcdn.com/[email protected]/dist/js/tether.min.js"></script>
<script src="https://npmcdn.com/[email protected]/dist/js/bootstrap.min.js"></script>
A crude work around is to set display: table
on the containing div.
I ran into this message when UITableView in the IB was moved into another subview with Cmd-C - Cmd-V.
All identifiers, delegate methods, links in the IB etc. stay intact, but exception is raised at the runtime.
The only solution is to clear all inks, related to tableview in the IB (outlet, datasource, delegate) and make them again.
double *ptr = malloc(sizeof(double *) * TIME); /* ... */ for(tcount = 0; tcount <= TIME; tcount++) ^^
<=
to <
or alloc
SIZE + 1
elementsmalloc
is wrong, you'll want sizeof(double)
instead of
sizeof(double *)
ouah
comments, although not directly linked to your corruption problem, you're using *(ptr+tcount)
without initializing itptr[tcount]
instead of *(ptr + tcount)
malloc
+ free
since you already know SIZE
You can also get this error if the objects you're passing to the method are out of order. In other words say your method takes, in order, a string, an integer, and a date. If you pass a date, then a string, then an integer you will get the same error message.
Enclose your text in
--Here-- with the space you want in new line.
save it in a String variable then pass it in Html.fromHtml().
A byte is 8 bits (binary data).
A byte array is an array of bytes (tautology FTW!).
You could use a byte array to store a collection of binary data, for example, the contents of a file. The downside to this is that the entire file contents must be loaded into memory.
For large amounts of binary data, it would be better to use a streaming data type if your language supports it.
Bernstein has the method, use the Eclipse tool, "Rename Application Package", you may have to do some clean-up even after the fact. Also, Eclipse sometimes loses track of things when you make changes to a project. You may have to use the "Clean Project" tool (under the "Project" menu.) If that doesn't work, you may have to close and restart Eclipse. Voo-doo solutions, but Eclipse can be that way.
You'll find the answer by typing ?rm
rm(data_1, data_2, data_3)
Another way to check if given URL is valid is to try to access it, below function will fetch the headers from given URL, this will ensure that URL is valid AND web server is alive:
function is_url($url){
$response = array();
//Check if URL is empty
if(!empty($url)) {
$response = get_headers($url);
}
return (bool)in_array("HTTP/1.1 200 OK", $response, true);
/*Array
(
[0] => HTTP/1.1 200 OK
[Date] => Sat, 29 May 2004 12:28:14 GMT
[Server] => Apache/1.3.27 (Unix) (Red-Hat/Linux)
[Last-Modified] => Wed, 08 Jan 2003 23:11:55 GMT
[ETag] => "3f80f-1b6-3e1cb03b"
[Accept-Ranges] => bytes
[Content-Length] => 438
[Connection] => close
[Content-Type] => text/html
)*/
}
You can trick MySQL into thinking you are actually specifying a primary key column. This allows you to "override" safe mode.
Assuming you have a table with an auto-incrementing numeric primary key, you could do the following:
DELETE FROM tbl WHERE id <> 0
There is also the approach of organizing the folders not by the structure of the framework, but by the structure of the application's function. There is a github starter Angular/Express application that illustrates this called angular-app.
This has been working for me:
`ls -F | grep /`
(But, I am switching to echo */
as mentioned by @nos)
You can do it the same way you do it with Mockito on real instances. For example you can chain stubs, the following line will make the first call do nothing, then second and future call to getResources
will throw the exception :
// the stub of the static method
doNothing().doThrow(Exception.class).when(StaticResource.class);
StaticResource.getResource("string");
// the use of the mocked static code
StaticResource.getResource("string"); // do nothing
StaticResource.getResource("string"); // throw Exception
Thanks to a remark of Matt Lachman, note that if the default answer is not changed at mock creation time, the mock will do nothing by default. Hence writing the following code is equivalent to not writing it.
doNothing().doThrow(Exception.class).when(StaticResource.class);
StaticResource.getResource("string");
Though that being said, it can be interesting for colleagues that will read the test that you expect nothing for this particular code. Of course this can be adapted depending on how is perceived understandability of the test.
By the way, in my humble opinion you should avoid mocking static code if your crafting new code. At Mockito we think it's usually a hint to bad design, it might lead to poorly maintainable code. Though existing legacy code is yet another story.
Generally speaking if you need to mock private or static method, then this method does too much and should be externalized in an object that will be injected in the tested object.
Hope that helps.
Regards
May be helpful:
It is the same construct - simply test for empty strings rather than NA
:
Try this:
df <- df[-which(df$start_pc == ""), ]
In fact, looking at your code, you don't need the which
, but use the negation instead, so you can simplify it to:
df <- df[!(df$start_pc == ""), ]
df <- df[!is.na(df$start_pc), ]
And, of course, you can combine these two statements as follows:
df <- df[!(df$start_pc == "" | is.na(df$start_pc)), ]
And simplify it even further with with
:
df <- with(df, df[!(start_pc == "" | is.na(start_pc)), ])
You can also test for non-zero string length using nzchar
.
df <- with(df, df[!(nzchar(start_pc) | is.na(start_pc)), ])
Disclaimer: I didn't test any of this code. Please let me know if there are syntax errors anywhere
For compititve programming
1) For input the value in an 2D-Array
row=input()
main_list=[]
for i in range(0,row):
temp_list=map(int,raw_input().split(" "))
main_list.append(temp_list)
2) For displaying 2D Array
for i in range(0,row):
for j in range(0,len(main_list[0]):
print main_list[i][j],
print
I know this is a bit old but the answer in short would be <load-on-startup> both occurrences have given the same id which is 1 twice. This may confuse loading sequence.
This is not JSON. JSON was designed to be simple; allowing arbitrary expressions is not simple.
In full JavaScript, I don't think you can do this directly. You cannot refer to this
until the object called obj
is fully constructed. So you need a workaround, that someone with more JavaScript-fu than I will provide.
Pylint message control is documented in the Pylint manual:
Is it possible to locally disable a particular message?
Yes, this feature has been added in Pylint 0.11. This may be done by adding
# pylint: disable=some-message,another-one
at the desired block level or at the end of the desired line of code.
You can use the message code or the symbolic names.
For example,
def test():
# Disable all the no-member violations in this function
# pylint: disable=no-member
...
global VAR # pylint: disable=global-statement
The manual also has further examples.
There is a wiki that documents all Pylint messages and their codes.
You want the :checkbox:checked
selector and map
to create an array of the values:
var checkedValues = $('input:checkbox:checked').map(function() {
return this.value;
}).get();
If your checkboxes have a shared class it would be faster to use that instead, eg. $('.mycheckboxes:checked')
, or for a common name $('input[name="Foo"]:checked')
- Update -
If you don't need IE support then you can now make the map()
call more succinct by using an arrow function:
var checkedValues = $('input:checkbox:checked').map((i, el) => el.value).get();
If margin is low, then it is always better to start with new plotting device:
dev.new()
# plot()
# save your plot
dev.off()
You will never get margin error, unless you plot something large which can not be accommodated.
Here is the JSONP I wrote to share with everyone:
the page to send req
http://c64.tw/r20/eqDiv/fr64.html
please save the srec below to .html youself
c64.tw/r20/eqDiv/src/fr64.txt
the page to resp, please save the srec below to .jsp youself
c64.tw/r20/eqDiv/src/doFr64.txt
or embedded the code in your page:
function callbackForJsonp(resp) {
var elemDivResp = $("#idForDivResp");
elemDivResp.empty();
try {
elemDivResp.html($("#idForF1").val() + " + " + $("#idForF2").val() + "<br/>");
elemDivResp.append(" = " + resp.ans + "<br/>");
elemDivResp.append(" = " + resp.ans2 + "<br/>");
} catch (e) {
alert("callbackForJsonp=" + e);
}
}
$(document).ready(function() {
var testUrl = "http://c64.tw/r20/eqDiv/doFr64.jsp?callback=?";
$(document.body).prepend("post to " + testUrl + "<br/><br/>");
$("#idForBtnToGo").click(function() {
$.ajax({
url : testUrl,
type : "POST",
data : {
f1 : $("#idForF1").val(),
f2 : $("#idForF2").val(),
op : "add"
},
dataType : "jsonp",
crossDomain : true,
//jsonpCallback : "callbackForJsonp",
success : callbackForJsonp,
//success : function(resp) {
//console.log("Yes, you success");
//callbackForJsonp(resp);
//},
error : function(XMLHttpRequest, status, err) {
console.log(XMLHttpRequest.status + "\n" + err);
//alert(XMLHttpRequest.status + "\n" + err);
}
});
});
});
-n
returns line number.
-i
is for ignore-case. Only to be used if case matching is not necessary
$ grep -in null myfile.txt
2:example two null,
4:example four null,
Combine with awk
to print out the line number after the match:
$ grep -in null myfile.txt | awk -F: '{print $2" - Line number : "$1}'
example two null, - Line number : 2
example four null, - Line number : 4
Use command substitution to print out the total null count:
$ echo "Total null count :" $(grep -ic null myfile.txt)
Total null count : 2
Remember Running Background, Running continuously are two different tasks.
For long-term background processes, Threads aren't optimal with Android. However, here's the code and do it at your own risk...
Remember Service or Thread will run in the background but our task needs to make trigger (call again and again) to get updates, i.e. once the task is completed we need to recall the function for next update.
Timer (periodic trigger), Alarm (Timebase trigger), Broadcast (Event base Trigger), recursion will awake our functions.
public static boolean isRecursionEnable = true;
void runInBackground() {
if (!isRecursionEnable)
// Handle not to start multiple parallel threads
return;
// isRecursionEnable = false; when u want to stop
// on exception on thread make it true again
new Thread(new Runnable() {
@Override
public void run() {
// DO your work here
// get the data
if (activity_is_not_in_background) {
runOnUiThread(new Runnable() {
@Override
public void run() {
// update UI
runInBackground();
}
});
} else {
runInBackground();
}
}
}).start();
}
Using Service: If you launch a Service it will start, It will execute the task, and it will terminate itself. after the task execution. terminated might also be caused by exception, or user killed it manually from settings. START_STICKY (Sticky Service) is the option given by android that service will restart itself if service terminated.
Remember the question difference between multiprocessing and multithreading? Service is a background process (Just like activity without UI), The same way how you launch thread in the activity to avoid load on the main thread (Activity thread), the same way you need to launch threads(or async tasks) on service to avoid load on service.
In a single statement, if you want a run a background continues task, you need to launch a StickyService and run the thread in the service on event base
If anybody is interested in the performance side of the multiple mechanisms available for Array iterations, I've prepared the following JSPerf tests:
https://jsperf.com/fastest-array-iterator
The traditional for()
iterator, is by far the fastest method, especially when used with the array length cached.
let arr = [1,2,3,4,5];
for(let i=0, size=arr.length; i<size; i++){
// Do something
}
The Array.prototype.forEach()
and the Array.prototype.map()
methods are the slowest approximations, probably as a consequence of the function call overhead.
How about creating your own Custom Panel class? That way you won't have to worry about overriding Bootstrap.
HTML
<div class="panel panel-custom-horrible-red">
<div class="panel-heading">
<h3 class="panel-title">Panel title</h3>
</div>
<div class="panel-body">
Panel content
</div>
</div>
CSS
.panel-custom-horrible-red {
border-color: #ff0000;
}
.panel-custom-horrible-red > .panel-heading {
background: #ff0000;
color: #ffffff;
border-color: #ff0000;
}
Fiddle: https://jsfiddle.net/x05f4crg/1/
cat CMakeLists.txt
project (hello)
set(CMAKE_BINARY_DIR "/bin")
set(EXECUTABLE_OUTPUT_PATH ${CMAKE_BINARY_DIR})
add_executable (hello hello.c)
var str = 'Dude, he totally said that "You Rock!"';
var var1 = str.replace(/\"/g,"\\\"");
alert(var1);
If you have root access install busybox (google for instructions).
Watch out if you are aiming at integers, like 1,2,3,4,5. If you intend to use the elements of your array as integers and not as strings after splitting the string, consider converting them into such.
var str = "1,2,3,4,5,6";
var temp = new Array();
// This will return an array with strings "1", "2", etc.
temp = str.split(",");
Adding a loop like this,
for (a in temp ) {
temp[a] = parseInt(temp[a], 10); // Explicitly include base as per Álvaro's comment
}
will return an array containing integers, and not strings.
You can't declare an extern
local method inside of a method, or any other method with an attribute. Move your DLL import into the class:
using System.Runtime.InteropServices;
public class WindowHandling
{
[DllImport("User32.dll")]
public static extern int SetForegroundWindow(IntPtr point);
public void ActivateTargetApplication(string processName, List<string> barcodesList)
{
Process p = Process.Start("notepad++.exe");
p.WaitForInputIdle();
IntPtr h = p.MainWindowHandle;
SetForegroundWindow(h);
SendKeys.SendWait("k");
IntPtr processFoundWindow = p.MainWindowHandle;
}
}
Keep in mind this overwrites any ID that the element already has:
$(".element").attr("id","SomeID");
The reason why addClass
exists is because an element can have multiple classes, so you wouldn't want to necessarily overwrite the classes already set. But with most attributes, there is only one value allowed at any given time.
You can use
window.clipboardData.getData('Text')
to get the content of user's clipboard in IE. However, in other browser you may need to use flash to get the content, since there is no standard interface to access the clipboard. May be you can have try this plugin Zero Clipboard
It is also possible to use Spring Data JDBC repository, which is a community project built on top of Spring Data Commons to access to databases with raw SQL, without using JPA.
It is less powerful than Spring Data JPA, but if you want lightweight solution for simple projects without using a an ORM like Hibernate, that a solution worth to try.
Use Services
This will start PostgresSQL servers as normal.
Keep it simple:
.circle
{
border-radius: 50%;
width: 200px;
height: 200px;
}
Width and height can be anything, as long as they're equal
Lots of these answers are outdated, it's 2020 and we shouldn't be enabling people who are still using IE9. It's way more simple to just use CSS grid.
The code is very simple, and you can easily adjust how many columns there are using the grid-template-columns
. See this and then play around with this fiddle to fit your needs.
.grid-list {
display: grid;
grid-template-columns: repeat(4, 1fr);
}
_x000D_
<ul class="grid-list">
<li>item</li>
<li>item</li>
<li>item</li>
<li>item</li>
<li>item</li>
<li>item</li>
<li>item</li>
<li>item</li>
<li>item</li>
<li>item</li>
<li>item</li>
<li>item</li>
</ul>
_x000D_
Create screen from Terminal:
screen -S <screen_name>
To see list of screens:
<screen -ls> or <screen -list>
To go to particular screen:
<screen -x screen_name>
<screen -r screen_name>
Inside screen
To Terminate screen:
give ctrl+d screen will get terminated
To Detach screen:
give <ctrl+ad>or <screen -d >screen will get detached
To reattach screen:
screen -x <screen_name> or screen -r <screen_name>
To kill a screen from Terminal:
<screen -X -S screen_name quit>
or
<screen -X -S screen_name kill>
You can use screen_name or process_id to execute commands.
I think you download the wrong version. I meet this problem just now, no method work after searching and searching. Finally, I found that maven I downloaded is Source zip archive. After I change to Binary zip archive, everything go to be fine.
$myVar = $someVar ?? 42;
Is equivalent to :
$myVar = isset($someVar) ? $someVar : 42;
For constants, the behaviour is the same when using a constant that already exists :
define("FOO", "bar");
define("BAR", null);
$MyVar = FOO ?? "42";
$MyVar2 = BAR ?? "42";
echo $MyVar . PHP_EOL; // bar
echo $MyVar2 . PHP_EOL; // 42
However, for constants that don't exist, this is different :
$MyVar3 = IDONTEXIST ?? "42"; // Raises a warning
echo $MyVar3 . PHP_EOL; // IDONTEXIST
Warning: Use of undefined constant IDONTEXIST - assumed 'IDONTEXIST' (this will throw an Error in a future version of PHP)
Php will convert the non-existing constant to a string.
You can use constant("ConstantName")
that returns the value of the constant or null if the constant doesn't exist, but it will still raise a warning. You can prepended the function with the error control operator @
to ignore the warning message :
$myVar = @constant("IDONTEXIST") ?? "42"; // No warning displayed anymore
echo $myVar . PHP_EOL; // 42
I've added the <%%
literal tag delimiter as an answer to this because of its obscurity. This will tell erb not to interpret the <%
part of the tag which is necessary for js apps like displaying chart.js tooltips etc.
Update (Fixed broken link)
Everything about ERB can now be found here: https://puppet.com/docs/puppet/5.3/lang_template_erb.html#tags
Check this: USING FOR LOOP
for a in range(5):
x='A'
val=chr(ord(x) + a)
print(val)
LOOP OUTPUT: A B C D E
From my experience with GCC I know that static
and static inline
differs in a way how compiler issue warnings about unused functions. More precisely when you declare static
function and it isn't used in current translation unit then compiler produce warning about unused function, but you can inhibit that warning with changing it to static inline
.
Thus I tend to think that static
should be used in translation units and benefit from extra check compiler does to find unused functions. And static inline
should be used in header files to provide functions that can be in-lined (due to absence of external linkage) without issuing warnings.
Unfortunately I cannot find any evidence for that logic. Even from GCC documentation I wasn't able to conclude that inline
inhibits unused function warnings. I'd appreciate if someone will share links to description of that.
Actually, one can also run a single mocha test by filename (not just by „it()-string-grepping“) if you remove the glob pattern (e.g. ./test/**/*.spec.js
) from your mocha.opts, respectively create a copy, without:
node_modules/.bin/mocha --opts test/mocha.single.opts test/self-test.spec.js
Here's my mocha.single.opts (it's only different in missing the aforementioned glob line)
--require ./test/common.js
--compilers js:babel-core/register
--reporter list
--recursive
Background: While you can override the various switches from the opts-File (starting with --
) you can't override the glob. That link also has
some explanations.
Hint: if node_modules/.bin/mocha
confuses you, to use the local package mocha. You can also write just mocha
, if you have it installed globally.
And if you want the comforts of package.json
: Still: remove the **/*
-ish glob from your mocha.opts
, insert them here, for the all-testing, leave them away for the single testing:
"test": "mocha ./test/**/*.spec.js",
"test-watch": "mocha -R list -w ./test/**/*.spec.js",
"test-single": "mocha $1",
"test-single-watch": "mocha -R list -w $1",
usage:
> npm run test
respectively
> npm run test-single -- test/ES6.self-test.spec.js
(mind the --
!)
In the version 5.x, you can use useHistory
hook of react-router-dom
:
// Sample extracted from https://reacttraining.com/react-router/core/api/Hooks/usehistory
import { useHistory } from "react-router-dom";
function HomeButton() {
const history = useHistory();
function handleClick() {
history.push("/home");
}
return (
<button type="button" onClick={handleClick}>
Go home
</button>
);
}
With my ASP.NET Core Angular project running in Visual Studio 2019, sometimes I get this error message in the Firefox console:
Content Security Policy: The page’s settings blocked the loading of a resource at inline (“default-src”).
In Chrome, the error message is instead:
Failed to load resource: the server responded with a status of 404 ()
In my case it had nothing to do with my Content Security Policy, but instead was simply the result of a TypeScript error on my part.
Check your IDE output window for a TypeScript error, like:
> ERROR in src/app/shared/models/person.model.ts(8,20): error TS2304: Cannot find name 'bool'.
>
> i ?wdm?: Failed to compile.
Note: Since this question is the first result on Google for this error message.
There is an hard limit on how much data can be stored in a single row of a mysql table, regardless of the number of columns or the individual column length.
As stated in the OFFICIAL DOCUMENTATION
The maximum row size constrains the number (and possibly size) of columns because the total length of all columns cannot exceed this size. For example, utf8 characters require up to three bytes per character, so for a CHAR(255) CHARACTER SET utf8 column, the server must allocate 255 × 3 = 765 bytes per value. Consequently, a table cannot contain more than 65,535 / 765 = 85 such columns.
Storage for variable-length columns includes length bytes, which are assessed against the row size. For example, a VARCHAR(255) CHARACTER SET utf8 column takes two bytes to store the length of the value, so each value can take up to 767 bytes.
Here you can find INNODB TABLES LIMITATIONS
For Java 11 you can use new HTTP client:
HttpClient client = HttpClient.newHttpClient();
HttpRequest request = HttpRequest.newBuilder()
.uri(URI.create("http://localhost/api"))
.header("Content-Type", "application/json")
.POST(ofInputStream(() -> getClass().getResourceAsStream(
"/some-data.json")))
.build();
client.sendAsync(request, BodyHandlers.ofString())
.thenApply(HttpResponse::body)
.thenAccept(System.out::println)
.join();
You can use publisher from InputStream, String, File. Converting JSON to the String or IS you can with Jackson.
You can use this:
return RedirectToAction("actionName", "controllerName", new { area = "Admin" });
Use Math.floor()
:
var f = 20.536;
var i = Math.floor(f); // 20
Below Should work nice and more readable using <pre>
<?php
ob_start();
echo '<pre>';
print_r($array);
$outputBuffer = ob_get_contents();
ob_end_flush();
file_put_contents('your file name', $outputBuffer);
?>
The insert or replace query would insert a new record if id=1 does not already exist.
The update query would only oudate id=1 if it aready exist, it would not create a new record if it didn't exist.
I'm not answering why it is so, but only wanted to show a way around that limitation in SQL Server by using CROSS APPLY
to create the alias. You then use it in the GROUP BY
clause, like so:
SELECT
itemName as ItemName,
FirstLetter,
Count(itemName)
FROM table1
CROSS APPLY (SELECT substring(itemName, 1,1) as FirstLetter) Alias
GROUP BY itemName, FirstLetter
You just have to change the second line of your second code-block from
{% if myVar is in_array(array_keys(someOtherArray)) %}
to
{% if myVar in someOtherArray|keys %}
in is the containment-operator and keys a filter that returns an arrays keys.
As it's said by "Tim Schmelter" this is the best way : just change in it's code the seconde loop ( GridView2.Columns[i].Count by row.Cells.Count ) so it looks seem's that:
foreach(GridViewRow row in GridView2.Rows)
{
for(int i = 0; i < GridView2.Columns.Count; i++)
{
String header = GridView2.Columns[i].HeaderText;
String cellText = row.Cells[i].Text;
}
}
thank you.
Death is a simple library that uses channels and a wait group to wait for shutdown signals. Once the signal has been received it will then call a close method on all of your structs that you want to cleanup.
PEP-8 is the official python coding standard. It contains a section on docstrings, which refers to PEP-257 -- a complete specification for docstrings.
You can iterate using the index access,
To avoid O(n^2) complexity you can use two indices, i - current testing index, j - index to store next item and at the end of the cycle new size of the vector.
code:
void erase(std::vector<int>& v, int num)
{
size_t j = 0;
for (size_t i = 0; i < v.size(); ++i) {
if (v[i] != num) v[j++] = v[i];
}
// trim vector to new size
v.resize(j);
}
In such case you have no invalidating of iterators, complexity is O(n), and code is very concise and you don't need to write some helper classes, although in some case using helper classes can benefit in more flexible code.
This code does not use erase
method, but solves your task.
Using pure stl you can do this in the following way (this is similar to the Motti's answer):
#include <algorithm>
void erase(std::vector<int>& v, int num) {
vector<int>::iterator it = remove(v.begin(), v.end(), num);
v.erase(it, v.end());
}
First malloc allocates memory for struct, including memory for x (pointer to double). Second malloc allocates memory for double value wtich x points to.
You have two ways:
1) In Background Layer > Scaling, reduce the Resize to 1
and then in Legacy > Legacy Icon set Shape as None
2) in Background Layer > Scaling > Source Asset, you can set an image as a 1x1 pixel (or any size) transparent.png image (you've already created).
and then in Legacy > Legacy Icon set Shape as None
Opening a file in python for reading is easy:
f = open('example.txt', 'r')
To get everything in the file, just use read()
file_contents = f.read()
And to print the contents, just do:
print (file_contents)
Don't forget to close the file when you're done.
f.close()
Go to inspect element and check if .justify-content-center is listed as a class name under 'Styles' tab. If not, probably you are using bootstrap v3 in which justify-content-center is not defined.
If so, please update bootstrap, worked for me.
It took me several hours to figure out this until the similarity of the datatypes between the array and that of the default value worked for me...
For this there are two cases
Case 1: File already added to git repo.
Case 2: File newly created and its status still showing as untracked file when using
git status
If you have case 1:
STEP 1: Then run
git rm --cached filename
to remove it from git repo cache
if it is a directory then use
git rm -r --cached directory_name
STEP 2: If Case 1 is over then create new file named .gitignore
in your git repo
STEP 3: Use following to tell git to ignore / assume file is unchanged
git update-index --assume-unchanged path/to/file.txt
STEP 4: Now, check status using git status open .gitignore
in your editor nano, vim, geany etc... any one, add the path of the file / folder to ignore. If it is a folder then user folder_name/*
to ignore all file.
If you still do not understand read the article git ignore file link.
JSON (JavaScript Object Notation) is a lightweight format that is used for data interchanging. It is based on a subset of JavaScript language (the way objects are built in JavaScript). As stated in the MDN, some JavaScript is not JSON, and some JSON is not JavaScript.
An example of where this is used is web services responses. In the 'old' days, web services used XML as their primary data format for transmitting back data, but since JSON appeared (The JSON format is specified in RFC 4627 by Douglas Crockford), it has been the preferred format because it is much more lightweight
You can find a lot more info on the official JSON web site.
JSON is built on two structures:
Here is an example of JSON data:
{
"firstName": "John",
"lastName": "Smith",
"address": {
"streetAddress": "21 2nd Street",
"city": "New York",
"state": "NY",
"postalCode": 10021
},
"phoneNumbers": [
"212 555-1234",
"646 555-4567"
]
}
JSON (in Javascript) is a string!
People often assume all Javascript objects are JSON and that JSON is a Javascript object. This is incorrect.
In Javascript var x = {x:y}
is not JSON, this is a Javascript object. The two are not the same thing. The JSON equivalent (represented in the Javascript language) would be var x = '{"x":"y"}'
. x
is an object of type string not an object in it's own right. To turn this into a fully fledged Javascript object you must first parse it, var x = JSON.parse('{"x":"y"}');
, x
is now an object but this is not JSON anymore.
When working with JSON and JavaScript, you may be tempted to use the eval
function to evaluate the result returned in the callback, but this is not suggested since there are two characters (U+2028 & U+2029) valid in JSON but not in JavaScript (read more of this here).
Therefore, one must always try to use Crockford's script that checks for a valid JSON before evaluating it. Link to the script explanation is found here and here is a direct link to the js file. Every major browser nowadays has its own implementation for this.
Example on how to use the JSON parser (with the json from the above code snippet):
//The callback function that will be executed once data is received from the server
var callback = function (result) {
var johnny = JSON.parse(result);
//Now, the variable 'johnny' is an object that contains all of the properties
//from the above code snippet (the json example)
alert(johnny.firstName + ' ' + johnny.lastName); //Will alert 'John Smith'
};
The JSON parser also offers another very useful method, stringify
. This method accepts a JavaScript object as a parameter, and outputs back a string with JSON format. This is useful for when you want to send data back to the server:
var anObject = {name: "Andreas", surname : "Grech", age : 20};
var jsonFormat = JSON.stringify(anObject);
//The above method will output this: {"name":"Andreas","surname":"Grech","age":20}
The above two methods (parse
and stringify
) also take a second parameter, which is a function that will be called for every key and value at every level of the final result, and each value will be replaced by result of your inputted function. (More on this here)
Btw, for all of you out there who think JSON is just for JavaScript, check out this post that explains and confirms otherwise.
This can be useful to see the progress of long insert queries, make any rough estimates (like COUNT(*)
or rough SUM(*)
) etc.
In other words, the results the dirty read queries return are fine as long as you treat them as estimates and don't make any critical decisions based upon them.
SOLUTION After all this time, I managed to resolve the problem.
In Module: UserForms(Name).Userform_Initialize
This method works best to dynamically init the current UserForm
I think that. When guest is launching page, but Admin is not logged in we don`t show something, for example the Chat.
add_action('init', 'chat_status');
function chat_status(){
if( get_option('admin_logged') === 1) { echo "<style>.chat{display:block;}</style>";}
else { echo "<style>.chat{display:none;}</style>";}
}
add_action('wp_login', function(){
if( wp_get_current_user()->roles[0] == 'administrator' ) update_option('admin_logged', 1);
});
add_action('wp_logout', function(){
if( wp_get_current_user()->roles[0] == 'administrator' ) update_option('admin_logged', 0);
});
When I was installing from GitHub I was able to use:
pip install git+ssh://[email protected]/<username>/<projectname>.git#egg=<eggname>
But, since I had to run pip as sudo
, the SSH keys were not working with GitHub any more, and "git clone" failed on "Permission denied (publickey)". Using git+https
allowed me to run the command as sudo, and have GitHub ask me for my user/password.
sudo pip install git+https://github.com/<username>/<projectname>.git#egg=<eggname>
In addition to what Angular University said above you may want to use @Import to aggregate @Configuration classes to the other class (AuthenticationController in my case) :
@Import(SecurityConfig.class)
@RestController
public class AuthenticationController {
@Autowired
private AuthenticationManager authenticationManager;
//some logic
}
Spring doc about Aggregating @Configuration classes with @Import: link
In my project, I usually use this snippets:
var type[];
$("input[name='messageCheckbox']:checked").each(function (i) {
type[i] = $(this).val();
});
And it works well.
//Parent/Children[@ Attribute='value']/@Attribute
This is the case which can be used where element is having 2 attribute and we can get the one attribute with the help of another one.
A more "duck typing" way is to use respond_to?
this way "integer-like" or "string-like" classes can also be used
if(s.respond_to?(:match) && s.match(".com")){
puts "It's a .com"
else
puts "It's not"
end
I'm Daniel Stenberg.
I founded the curl project back in 1998, I wrote the initial curl version and I created libcurl. I've written more than half of all the 24,000 commits done in the source code repository up to this point in time. I'm still the lead developer of the project. To a large extent, curl is my baby.
I shipped the first version of curl as open source since I wanted to "give back" to the open source world that had given me so much code already. I had used so much open source and I wanted to be as cool as the other open source authors.
Thanks to it being open source, literally thousands of people have been able to help us out over the years and have improved the products, the documentation. the web site and just about every other detail around the project. curl and libcurl would never have become the products that they are today were they not open source. The list of contributors now surpass 1900 names and currently the list grows with a few hundred names per year.
Thanks to curl and libcurl being open source and liberally licensed, they were immediately adopted in numerous products and soon shipped by operating systems and Linux distributions everywhere thus getting a reach beyond imagination.
Thanks to them being "everywhere", available and liberally licensed they got adopted and used everywhere and by everyone. It created a defacto transfer library standard.
At an estimated six billion installations world wide, we can safely say that curl is the most widely used internet transfer library in the world. It simply would not have gone there had it not been open source. curl runs in billions of mobile phones, a billion Windows 10 installations, in a half a billion games and several hundred million TVs - and more.
Should I have released it with proprietary license instead and charged users for it? It never occured to me, and it wouldn't have worked because I would never had managed to create this kind of stellar project on my own. And projects and companies wouldn't have used it.
Now, why do I and my fellow curl developers still continue to develop curl and give it away for free to the world?
Yes. So insanely much.
But I'm not satisfied with this and I'm not just leaning back, happy with what we've done. I keep working on curl every single day, to improve, to fix bugs, to add features and to make sure curl keeps being the number one file transfer solution for the world even going forward.
We do mistakes along the way. We make the wrong decisions and sometimes we implement things in crazy ways. But to win in the end and to conquer the world is about patience and endurance and constantly going back and reconsidering previous decisions and correcting previous mistakes. To continuously iterate, polish off rough edges and gradually improve over time.
Never give in. Never stop. Fix bugs. Add features. Iterate. To the end of time.
Yeah. For real.
Sure I get tired at times. Working on something every day for over twenty years isn't a paved downhill road. Sometimes there are obstacles. During times things are rough. Occasionally people are just as ugly and annoying as people can be.
But curl is my life's project and I have patience. I have thick skin and I don't give up easily. The tough times pass and most days are awesome. I get to hang out with awesome people and the reward is knowing that my code helps driving the Internet revolution everywhere is an ego boost above normal.
curl will never be "done" and so far I think work on curl is pretty much the most fun I can imagine. Yes, I still think so even after twenty years in the driver's seat. And as long as I think it's fun I intend to keep at it.
Yes, there is: you can capture the echo
ed text using ob_start
:
<?php function TestBlockHTML($replStr) {
ob_start(); ?>
<html>
<body><h1><?php echo($replStr) ?></h1>
</html>
<?php
return ob_get_clean();
} ?>
In addition to the refactoring and source control tools listed here, AQTime is a great windows profiler. It can run as a plugin or stand-alone and it works with .NET and native code.
Checking this morning it appears it is now:
socket.close()
The problem isn't that null cannot be assigned to an int?. The problem is that both values returned by the ternary operator must be the same type, or one must be implicitly convertible to the other. In this case, null cannot be implicitly converted to int nor vice-versus, so an explict cast is necessary. Try this instead:
int? accom = (accomStr == "noval" ? (int?)null : Convert.ToInt32(accomStr));
First of all you should know the difference between a virtual and abstract method.
In my case CFLAGS = -O0 -g -Wall -I. -mcpu=cortex-m4 -mthumb -mfpu=fpv4-sp-d16 -mfloat-abi=soft
has helped. As you can see, i used it for my stm32f407.
You can use one-line heredoc
cat <<< "This is coming from the stdin"
the above is the same as
cat <<EOF
This is coming from the stdin
EOF
or you can redirect output from a command, like
diff <(ls /bin) <(ls /usr/bin)
or you can read as
while read line
do
echo =$line=
done < some_file
or simply
echo something | read param
Quick example using company1
from your question, with python3.
import pickle
# Save the file
pickle.dump(company1, file = open("company1.pickle", "wb"))
# Reload the file
company1_reloaded = pickle.load(open("company1.pickle", "rb"))
However, as this answer noted, pickle often fails. So you should really use dill
.
import dill
# Save the file
dill.dump(company1, file = open("company1.pickle", "wb"))
# Reload the file
company1_reloaded = dill.load(open("company1.pickle", "rb"))
C# has a few more features than Java. Take delegates for example: Many very simple C# applications use delegates, while the Java folks figures that the observer pattern was sufficient. So, in order for a tool to convert a C# application which uses delegates it would have to translate the structure from using delegates to an implementation of the observer pattern. Another problem is the fact that C# methods are not virtual by default while Java methods are. Additionally, Java doesn't have a way to make methods non virtual. This creates another problem: an application in C# could leverage non virtual method behavior through polymorphism in a way the does not translate directly to Java. If you look around you will probably find that there are lots of tools to convert Java to C# since it is a simpler language (please don't flame me I didn't say worse I said simpler); however, you will find very few if any decent tools that convert C# to Java.
I would recommend changing your approach to converting from Java to C# as it will create fewer headaches in the long run. Db4Objects recently released their internal tool which they use to convert Db4o into C# to the public. It is called Sharpen. If you register with their site you can view this link with instructions on how to use Sharpen: http://developer.db4o.com/Resources/view.aspx/Reference/Sharpen/How_To_Setup_Sharpen
(I've been registered with them for a while and they're good about not spamming)
It depends. The System.Timers.Timer
has two modes of operation.
If SynchronizingObject
is set to an ISynchronizeInvoke
instance then the Elapsed
event will execute on the thread hosting the synchronizing object. Usually these ISynchronizeInvoke
instances are none other than plain old Control
and Form
instances that we are all familiar with. So in that case the Elapsed
event is invoked on the UI thread and it behaves similar to the System.Windows.Forms.Timer
. Otherwise, it really depends on the specific ISynchronizeInvoke
instance that was used.
If SynchronizingObject
is null then the Elapsed
event is invoked on a ThreadPool
thread and it behaves similar to the System.Threading.Timer
. In fact, it actually uses a System.Threading.Timer
behind the scenes and does the marshaling operation after it receives the timer callback if needed.
I would use a listener. Fragment1 calling the listener (main activity)
I think you have to write your own filter for that. It's actually the example for custom filters in the documentation: http://jinja.pocoo.org/docs/api/#custom-filters
If you want to use Codeblocks and Graphics.h,you can use Codeblocks-EP(I used it when I was learning C in college) then you can try
Codeblocks-EP http://codeblocks.codecutter.org/
In Codeblocks-EP , [File]->[New]->[Project]->[WinBGIm Project]
It has templates for WinBGIm projects installed and all the necessary libraries pre-installed.
OR try this https://stackoverflow.com/a/20321173/5227589
Thanks to dimo414's answer, this shows how his great solution works, and shows that you can have quotes and variables in the text easily as well:
$ ./test.sh
The text from the example function is:
Welcome dev: Would you "like" to know how many 'files' there are in /tmp?
There are " 38" files in /tmp, according to the "wc" command
#!/bin/bash
function text1()
{
COUNT=$(\ls /tmp | wc -l)
cat <<EOF
$1 Would you "like" to know how many 'files' there are in /tmp?
There are "$COUNT" files in /tmp, according to the "wc" command
EOF
}
function main()
{
OUT=$(text1 "Welcome dev:")
echo "The text from the example function is: $OUT"
}
main
You're trying to import all of those modules at once. Even if one of them fails, the rest will not import. For example:
try:
import datetime
import foo
import sys
except ImportError:
pass
Let's say foo
doesn't exist. Then only datetime
will be imported.
What you can do is import the sys module at the beginning of the file, before the try/except statement:
import sys
try:
import numpy as np
import pyfits as pf
import scipy.ndimage as nd
import pylab as pl
import os
import heapq
from scipy.optimize import leastsq
except ImportError:
print "Error: missing one of the libraries (numpy, pyfits, scipy, matplotlib)"
sys.exit()
As simple as:
<template>
<div id="app">
<img src="./assets/logo.png">
</div>
</template>
<script>
export default {
}
</script>
<style lang="css">
</style>
Taken from the project generated by vue cli.
If you want to use your image as a module, do not forget to bind data to your Vuejs component:
<template>
<div id="app">
<img :src="image"/>
</div>
</template>
<script>
import image from "./assets/logo.png"
export default {
data: function () {
return {
image: image
}
}
}
</script>
<style lang="css">
</style>
And a shorter version:
<template>
<div id="app">
<img :src="require('./assets/logo.png')"/>
</div>
</template>
<script>
export default {
}
</script>
<style lang="css">
</style>
You have to update the php.ini config file with in your host provider's server, trust me on this, more than likely there is nothing wrong with your code. It took me almost a month and a half to realize that most hosting servers are not up to date on php.ini files, eg. php 5.5 or later, I believe.
In [34]: a=np.arange(-10,10)
In [35]: a
Out[35]:
array([-10, -9, -8, -7, -6, -5, -4, -3, -2, -1, 0, 1, 2,
3, 4, 5, 6, 7, 8, 9])
In [36]: np.where(a>5)
Out[36]: (array([16, 17, 18, 19]),)
In [37]: np.where(a>5)[0][0]
Out[37]: 16
What I made, in my case I wanted to show procedure's result in dataGridView:
using (var command = new SqlCommand("ProcedureNameHere", connection) {
// Set command type and add Parameters
CommandType = CommandType.StoredProcedure,
Parameters = { new SqlParameter("@parameterName",parameterValue) }
})
{
// Execute command in Adapter and store to dataset
var adapter = new SqlDataAdapter(command);
var dataset = new DataSet();
adapter.Fill(dataset);
// Display results in DatagridView
dataGridView1.DataSource = dataset.Tables[0];
}
Given your example, you need to add the following import in your main.main
class:
import second.second;
Some bonus advice, make sure you titlecase your class names as that is a Java standard. So your example Main class will have the structure:
package main; //lowercase package names
public class Main //titlecase class names
{
//Main class content
}
While you got a dozen suggestions about using the size of your list, which work for lists with linear entries, no one seemed to read your question.
If you add entries manually at different indexes none of these suggestions will work, as you need to check for a specific index.
Using if ( list.get(index) == null ) will not work either, as get() throws an exception instead of returning null.
Try this:
try {
list.get( index );
} catch ( IndexOutOfBoundsException e ) {
list.add( index, new Object() );
}
Here a new entry is added if the index does not exist. You can alter it to do something different.
There are three parts:
You need to add a shebang at the top of your script so the shell knows which interpreter to use when parsing your script. It is generally:
#!path/to/interpretter
To find the path to your python interpretter on your machine you can run the command:
which python
This will search your PATH to find the location of your python executable. It should come back with a absolute path which you can then use to form your shebang. Make sure your shebang is at the top of your python script:
#!/usr/bin/python
You have to mark your script with run permissions so that your shell knows you want to actually execute it when you try to use it as a command. To do this you can run this command:
chmod +x myscript.py
The PATH environment variable is an ordered list of directories that your shell will search when looking for a command you are trying to run. So if you want your python script to be a command you can run from anywhere then it needs to be in your PATH. You can see the contents of your path running the command:
echo $PATH
This will print out a long line of text, where each directory is seperated by a semicolon. Whenever you are wondering where the actual location of an executable that you are running from your PATH, you can find it by running the command:
which <commandname>
Now you have two options: Add your script to a directory already in your PATH, or add a new directory to your PATH. I usually create a directory in my user home directory and then add it the PATH. To add things to your path you can run the command:
export PATH=/my/directory/with/pythonscript:$PATH
Now you should be able to run your python script as a command anywhere. BUT! if you close the shell window and open a new one, the new one won't remember the change you just made to your PATH. So if you want this change to be saved then you need to add that command at the bottom of your .bashrc or .bash_profile
To answer your question literally, here's how to get the next value of a sequence without incrementing it:
SELECT
CASE WHEN is_called THEN
last_value + 1
ELSE
last_value
END
FROM sequence_name
Obviously, it is not a good idea to use this code in practice. There is no guarantee that the next row will really have this ID. However, for debugging purposes it might be interesting to know the value of a sequence without incrementing it, and this is how you can do it.
If you want to open an existing project from GitHub, you need to do the following (these are steps only for Visual Studio 2013!!!! And newer, as in older versions there are no built-in Git installation):
Team explorer ? Connect to teamProjects ? Local GitRepositories ? Clone.
Copy/paste your GitHub address from the browser.
Select a local path for this project.
instead of doing it like that, why not just make the flyout position:fixed, top:0; left:0;
once your window has scrolled pass a certain height:
jQuery
$(window).scroll(function(){
if ($(this).scrollTop() > 135) {
$('#task_flyout').addClass('fixed');
} else {
$('#task_flyout').removeClass('fixed');
}
});
css
.fixed {position:fixed; top:0; left:0;}
Basically, the term "x-bit machine" does not depend on your machine. That is why we do not need to change our processors or other hardware in order to migrate from a 32bit system to a 64bit one (or vice versa).
32bit and 64bit stands for the addressing capability of the OS running on your machine.
However, it still does not mean that a x-bit operating system is capable to address 2^x GB memory. Because the 'B' in "GB" means "byte" and not "bit". 1 byte equals 8 bits.
Actually a 32bit system can not even address 2^32/8 = 2^29 GB memory space while there should some memory be reserved to the OS.
It is something just below 3 GB.
Either escape the quote:
$text1= "From time to \"time\"";
or use single quotes to denote your string:
$text1= 'From time to "time"';
Be careful with jobs
1 - if you have a job based in maven, Jenkins takes your default java configuration and you decide the compilation level in your POM.XML.
2 - if you have a free style job, in the the configuration option of the job you can select the JDK that you want to use.
Hope this help.
i suggest in Javascript:
var item=1387843200000;
var date1=new Date(item);
and then date1 is a Date.
Don't ask what this has to do with that , but by right clicking the genymotion application file and changing to compatibility to Vista solved the problem!
As many said, this is due to stash
being a shell script on Windows, but since Git 2.18.0 the Windows installer has an option for an experimental feature of a much faster (~90%) built-in version of stash -
https://github.com/git-for-windows/build-extra/pull/203.
Using begin and end seemed to work for me to select a range of elements. This gives me three separate lists. The first list with items 1-9, second list with items 10-18, and the last list with items 11-25.
<ul>
<c:forEach items="${actionBean.top25Teams}" begin="0" end="8" var="team" varStatus="counter">
<li>${team.name}</li>
</c:forEach>
</ul>
<ul>
<c:forEach items="${actionBean.top25Teams}" begin="9" end="17" var="team" varStatus="counter">
<li>${team.name}</li>
</c:forEach>
</ul>
<ul>
<c:forEach items="${actionBean.top25Teams}" begin="18" end="25" var="team" varStatus="counter">
<li>${team.name}</li>
</c:forEach>
</ul>
When it's in percentage table width, or you can't set fixed width on table cell. You can apply table-layout: fixed;
to make it work.
table {_x000D_
table-layout: fixed;_x000D_
width: 100%;_x000D_
}_x000D_
td {_x000D_
text-overflow: ellipsis;_x000D_
white-space: nowrap;_x000D_
overflow: hidden;_x000D_
border: 1px solid red;_x000D_
}
_x000D_
<table>_x000D_
<tr>_x000D_
<td>Lorem ipsum and dim sum yeah yeah yeah. Lorem ipsum and dim sum yeah yeah yeah. Lorem ipsum and dim sum yeah yeah yeah. Lorem ipsum and dim sum yeah yeah yeah. Lorem ipsum and dim sum yeah yeah yeah.</td>_x000D_
<td>Lorem ipsum and dim sum yeah yeah yeah. Lorem ipsum and dim sum yeah yeah yeah. Lorem ipsum and dim sum yeah yeah yeah. Lorem ipsum and dim sum yeah yeah yeah. Lorem ipsum and dim sum yeah yeah yeah.</td>_x000D_
</tr>_x000D_
</table>
_x000D_
.abc, .xyz { margin-left: 20px; }
is what you are looking for.
Template argument deduction for class templates
[*this]{ std::cout << could << " be " << useful << '\n'; }
[[fallthrough]]
, [[nodiscard]]
, [[maybe_unused]]
attributes
using
in attributes to avoid having to repeat an attribute namespace.
Compilers are now required to ignore non-standard attributes they don't recognize.
Simple static_assert(expression);
with no string
no throw
unless throw()
, and throw()
is noexcept(true)
.
std::tie
with auto
const auto [it, inserted] = map.insert( {"foo", bar} );
it
and inserted
with deduced type from the pair
that map::insert
returns.std::array
s and relatively flat structsif (init; condition)
and switch (init; condition)
if (const auto [it, inserted] = map.insert( {"foo", bar} ); inserted)
if(decl)
to cases where decl
isn't convertible-to-bool sensibly.Generalizing range-based for loops
Fixed order-of-evaluation for (some) expressions with some modifications
.then
on future work.Forward progress guarantees (FPG) (also, FPGs for parallel algorithms)
u8'U', u8'T', u8'F', u8'8'
character literals (string already existed)
inherited constructors fixes to some corner cases (see P0136R0 for examples of behavior changes)
std::string
like reference-to-character-array or substringstring const&
again. Also can make parsing a bajillion times faster."hello world"sv
char_traits
std::byte
off more than they could chew.
std::invoke
std::apply
std::make_from_tuple
, std::apply
applied to object construction
is_invocable
, is_invocable_r
, invoke_result
result_of
is_invocable<Foo(Args...), R>
is "can you call Foo
with Args...
and get something compatible with R
", where R=void
is default.invoke_result<Foo, Args...>
is std::result_of_t<Foo(Args...)>
but apparently less confusing?[class.directory_iterator]
and [class.recursive_directory_iterator]
fstream
s can be opened with path
s, as well as with const path::value_type*
strings.
for_each_n
reduce
transform_reduce
exclusive_scan
inclusive_scan
transform_exclusive_scan
transform_inclusive_scan
Added for threading purposes, exposed even if you aren't using them threaded
atomic<T>
::is_always_lockfree
std::lock
pain when locking more than one mutex at a time.std
algorithms, and related machinery[func.searchers]
and [alg.search]
std::function
for allocatorsstd::sample
, sampling from a range?
try_emplace
and insert_or_assign
Splicing for map<>
, unordered_map<>
, set<>
, and unordered_set<>
non-const .data()
for string.
non-member std::size
, std::empty
, std::data
std::begin
/end
The emplace
family of functions now returns a reference to the created object.
unique_ptr<T[]>
fixes and other unique_ptr
tweaks.weak_from_this
and some fixed to shared from thisstd
datatype improvements:{}
construction of std::tuple
and other improvementsC++17 library is based on C11 instead of C99
Reserved std[0-9]+
for future standard libraries
std
implementations exposedstd::clamp()
std::clamp( a, b, c ) == std::max( b, std::min( a, c ) )
roughlygcd
and lcm
std::uncaught_exceptions
std::as_const
std::bool_constant
_v
template variablesstd::void_t<T>
std::owner_less<void>
std::less<void>
, but for smart pointers to sort based on contentsstd::chrono
polishstd::conjunction
, std::disjunction
, std::negation
exposedstd::not_fn
std
std::less
.<codecvt>
memory_order_consume
result_of
, replaced with invoke_result
shared_ptr::unique
, it isn't very threadsafeIsocpp.org has has an independent list of changes since C++14; it has been partly pillaged.
Naturally TS work continues in parallel, so there are some TS that are not-quite-ripe that will have to wait for the next iteration. The target for the next iteration is C++20 as previously planned, not C++19 as some rumors implied. C++1O has been avoided.
Initial list taken from this reddit post and this reddit post, with links added via googling or from the above isocpp.org page.
Additional entries pillaged from SD-6 feature-test list.
clang's feature list and library feature list are next to be pillaged. This doesn't seem to be reliable, as it is C++1z, not C++17.
these slides had some features missing elsewhere.
While "what was removed" was not asked, here is a short list of a few things ((mostly?) previous deprecated) that are removed in C++17 from C++:
register
, keyword reserved for future usebool b; ++b;
<functional>
stuff, random_shuffle
std::function
There were rewordings. I am unsure if these have any impact on code, or if they are just cleanups in the standard:
P0505R0 (constexpr chrono)
P0418R2 (atomic tweaks)
P0512R0 (template argument deduction tweaks)
P0490R0 (structured binding tweaks)
P0513R0 (changes to std::hash
)
P0502R0 (parallel exceptions)
P0509R1 (updating restrictions on exception handling)
P0012R1 (make exception specifications be part of the type system)
P0510R0 (restrictions on variants)
P0504R0 (tags for optional/variant/any)
P0497R0 (shared ptr tweaks)
P0508R0 (structured bindings node handles)
P0521R0 (shared pointer use count and unique changes?)
https://isocpp.org/files/papers/p0636r0.html
Let's say I have a (fake) directory structure like:
.../root/
/app
bootstrap.php
/scripts
something/
somescript.php
/public
index.php
Now assume that bootstrap.php
has some code included for setting up database connections or some other kind of boostrapping stuff.
Assume you want to include a file in boostrap.php
's folder called init.php
. Now, to avoid scanning the entire include path with include 'init.php'
, you could use include './init.php'
.
There's a problem though. That ./
will be relative to the script that included bootstrap.php
, not bootstrap.php
. (Technically speaking, it will be relative to the working directory.)
dirname(__FILE__)
allows you to get an absolute path (and thus avoid an include path search) without relying on the working directory being the directory in which bootstrap.php
resides.
(Note: since PHP 5.3, you can use __DIR__
in place of dirname(__FILE__)
.)
Now, why not just use include 'init.php';
?
As odd as it is at first though, .
is not guaranteed to be in the include path. Sometimes to avoid useless stat()
's people remove it from the include path when they are rarely include files in the same directory (why search the current directory when you know includes are never going to be there?).
Note: About half of this answer is address in a rather old post: What's better of require(dirname(__FILE__).'/'.'myParent.php') than just require('myParent.php')?
If you are using Hibernate 5.2 and above then you can use this:
private static StandardServiceRegistry registry;
private static SessionFactory sessionFactory;
public static SessionFactory getSessionFactory() {
if (sessionFactory == null) {
try {
// Creating a registry
registry = new StandardServiceRegistryBuilder().configure("hibernate.cfg.xml").build();
// Create the MetadataSources
MetadataSources sources = new MetadataSources(registry);
// Create the Metadata
Metadata metadata = sources.getMetadataBuilder().build();
// Create SessionFactory
sessionFactory = metadata.getSessionFactoryBuilder().build();
} catch (Exception e) {
e.printStackTrace();
if (registry != null) {
StandardServiceRegistryBuilder.destroy(registry);
}
}
}
return sessionFactory;
}
//To shut down
public static void shutdown() {
if (registry != null) {
StandardServiceRegistryBuilder.destroy(registry);
}
}
document.getElementById("serverTime").innerHTML = ...;
In Java 8 you could easily turn your text file into a List of Strings with streams by using Files.lines
and collect
:
private List<String> loadFile() {
URI uri = null;
try {
uri = ClassLoader.getSystemResource("example.txt").toURI();
} catch (URISyntaxException e) {
LOGGER.error("Failed to load file.", e);
}
List<String> list = null;
try (Stream<String> lines = Files.lines(Paths.get(uri))) {
list = lines.collect(Collectors.toList());
} catch (IOException e) {
LOGGER.error("Failed to load file.", e);
}
return list;
}
i am currently working on this and planning on releasing it as a jQuery-ui plugin.
-> http://coulisse.luvdasun.com/
please let me know if you are interested and what you are hoping to see in such a plugin.
gr
As per the documentation :
Set the activity content from a layout resource. The resource will be inflated, adding all top-level views to the activity.
Your Launcher
activity in the manifest first gets called and it set the layout view as specified in respective java files setContentView(R.layout.main);
. Now this activity uses setContentView(R.layout.main)
to set xml layout to that activity which will actually render as the UI of your activity.