If it is your private k8s cluster, MetalLB would be a better fit. Below are the steps.
Step 1: Install MetalLB in your cluster
kubectl apply -f https://raw.githubusercontent.com/metallb/metallb/v0.9.3/manifests/namespace.yaml
kubectl apply -f https://raw.githubusercontent.com/metallb/metallb/v0.9.3/manifests/metallb.yaml
# On first install only
kubectl create secret generic -n metallb-system memberlist --from-literal=secretkey="$(openssl rand -base64 128)"
Step 2: Configure it by using a configmap
apiVersion: v1
kind: ConfigMap
metadata:
namespace: metallb-system
name: config
data:
config: |
address-pools:
- name: default
protocol: layer2
addresses:
- 172.42.42.100-172.42.42.105 #Update this with your Nodes IP range
Step 3: Create your service to get an external IP (would be a private IP though).
FYR:
You need to enable these extensions in the php.ini file
Before:
;extension=pdo_mysql
;extension=mysqli
;extension=pdo_sqlite
;extension=sqlite3
After:
extension=pdo_mysql
extension=mysqli
extension=pdo_sqlite
extension=sqlite3
It is advisable that you also activate the fileinfo extension, many packages require this.
Lets assume you created a Ubuntu VM on your local machine. It's IP address is 192.168.1.104.
You login into VM, and installed Kubernetes. Then you created a pod where nginx image running on it.
1- If you want to access this nginx pod inside your VM, you will create a ClusterIP bound to that pod for example:
$ kubectl expose deployment nginxapp --name=nginxclusterip --port=80 --target-port=8080
Then on your browser you can type ip address of nginxclusterip with port 80, like:
2- If you want to access this nginx pod from your host machine, you will need to expose your deployment with NodePort. For example:
$ kubectl expose deployment nginxapp --name=nginxnodeport --port=80 --target-port=8080 --type=NodePort
Now from your host machine you can access to nginx like:
In my dashboard they appear as:
Below is a diagram shows basic relationship.
The good solution for this error please run this command
composer install --ignore-platform-reqs
I encountered this problem in Laravel 5.8, what I did was to do composer require
for each library and all where installed correctly.
Like so:
instead of adding it to the composer.json file or specifying a version:
composer require msurguy/honeypot: dev-master
I instead did without specifying any version:
composer require msurguy/honeypot
I hope it helps, thanks
first thing you want to do is to create your migration file.
Type in your command line
php artisan make:migration rename_stk_column --table="YOUR TABLE" --create
After creating the file. Open the new created migration file in your app folder under database/migrations.
In your up method insert this:
Schema::table('stnk', function(Blueprint $table)
{
$table->renameColumn('id', 'id_stnk');
});
}
and in your down method:
Schema::table('stnk', function(Blueprint $table)
{
$table->renameColumn('id_stnk', 'id);
});
}
then in your command line just type
php artisan migrate
Then wollah! you have just renamed id to id_stnk. BTW you can use
php artisan migrate:rollback
to undo the changes. Goodluck
For me the problem had caused due to "’" that symbol in the quotes. As i had copied the code from a pdf file it caused that error. I just replaced "’" by this "'".
// first need to reset current manager
$em->resetManager();
// and then get new
$em = $this->getContainer()->get("doctrine");
// or in this way, depending of your environment:
$em = $this->getDoctrine();
When using java 8, you may take advantage of stream API and simplify code to
return (YourEntityClass) entityManager.createQuery()
....
.getResultList()
.stream().findFirst();
That will give you java.util.Optional
If you prefer null instead, all you need is
...
.getResultList()
.stream().findFirst().orElse(null);
Keep in mind that a PDOStatement
is Traversable
. Given a query:
$query = $dbh->query('
SELECT
*
FROM
test
');
It can be iterated over:
$it = new IteratorIterator($query);
echo '<p>', iterator_count($it), ' items</p>';
// Have to run the query again unfortunately
$query->execute();
foreach ($query as $row) {
echo '<p>', $row['title'], '</p>';
}
Or you can do something like this:
$it = new IteratorIterator($query);
$it->rewind();
if ($it->valid()) {
do {
$row = $it->current();
echo '<p>', $row['title'], '</p>';
$it->next();
} while ($it->valid());
} else {
echo '<p>No results</p>';
}
If infinity is a possible value, I would use numpy.isfinite
numpy.isfinite(myarray).all()
If the above evaluates to True
, then myarray
contains no, numpy.nan
, numpy.inf
or -numpy.inf
values.
numpy.nan
will be OK with numpy.inf
values, for example:
In [11]: import numpy as np
In [12]: b = np.array([[4, np.inf],[np.nan, -np.inf]])
In [13]: np.isnan(b)
Out[13]:
array([[False, False],
[ True, False]], dtype=bool)
In [14]: np.isfinite(b)
Out[14]:
array([[ True, False],
[False, False]], dtype=bool)
A one-liner:
var encodedMsg = $('<div />').text(message).html();
See it work:
DateTime.DaysInMonth(DateTime.Now.Year, DateTime.Now.Month)
iif has always been available in VB, even in VB6.
Dim foo as String = iif(bar = buz, cat, dog)
It is not a true operator, as such, but a function in the Microsoft.VisualBasic namespace.
On Python 3, print
can take an optional flush
argument
print("Hello world!", flush=True)
On Python 2 you'll have to do
import sys
sys.stdout.flush()
after calling print
. By default, print
prints to sys.stdout
(see the documentation for more about file objects).
If you are using bootstrap and font-awesome then it is easy, no need to write a single line of new code, just add fa-Nx, as big you want, See the demo
<span class="glyphicon glyphicon-globe"></span>
<span class="glyphicon glyphicon-globe fa-lg"></span>
<span class="glyphicon glyphicon-globe fa-2x"></span>
<span class="glyphicon glyphicon-globe fa-3x"></span>
<span class="glyphicon glyphicon-globe fa-4x"></span>
<span class="glyphicon glyphicon-globe fa-5x"></span>
Extract each jar to it's own directory using the jar command with parameters xvf. i.e. jar xvf myjar.jar
for each jar.
Then, use the UNIX command diff
to compare the two directories. This will show the differences in the directories. You can use diff -r dir1 dir2
two recurse and show the differences in text files in each directory(.xml, .properties, etc).
This will also show if binary class files differ. To actually compare the class files you will have to decompile them as noted by others.
import json
with open('result.json', 'w') as fp:
json.dump(sample, fp)
This is an easier way to do it.
In the second line of code the file result.json
gets created and opened as the variable fp
.
In the third line your dict sample
gets written into the result.json
!
Google Closure Compiler, YUI compressor, Minify, /Packer/... etc, are options for compressing/obfuscating your JS codes. But none of them can help you from hiding your code from the users.
Anyone with decent knowledge can easily decode/de-obfuscate your code using tools like JS Beautifier. You name it.
So the answer is, you can always make your code harder to read/decode, but for sure there is no way to hide.
You could use Microsoft.AspNetCore.Mvc.ControllerBase.StatusCode
and Microsoft.AspNetCore.Http.StatusCodes
to form your response, if you don't wish to hardcode specific numbers.
return StatusCode(StatusCodes.Status500InternalServerError);
UPDATE: Aug 2019
Perhaps not directly related to the original question but when trying to achieve the same result with Microsoft Azure Functions
I found that I had to construct a new StatusCodeResult
object found in the Microsoft.AspNetCore.Mvc.Core
assembly. My code now looks like this;
return new StatusCodeResult(StatusCodes.Status500InternalServerError);
I use the trick suggested by Peter Lada all the time, dubbed as "fake submodules":
http://debuggable.com/posts/git-fake-submodules:4b563ee4-f3cc-4061-967e-0e48cbdd56cb
It's very useful in several scenarios (p.e. I use it to keep all my Emacs config in a repository, including the current HEAD of all git repositories inside the elpa/el-get package directories, so I could easily roll back/forward to a known working version when some update breaks something).
Mine was quite a unique case but this could help someone. On Android I tried to copy nano from my termux binary folder to /system/xbin. Placed all the library dependencies in /system/lib and got this error. The libncurses.so.6 file I copied from termux had it's TERMINFO file still pointed to /data/data/com.termux/files/usr/share/terminfo
View pointed path with command
strings path-to-libncurses.so | grep /terminfo
To fix either make the termux terminfo dir and subdirs readable and executable by the nano user or copy the terminfo folder somewhere else and use a hexeditor to modify the plain text path in the shared library file.
Link to zipped terminfo folder https://drive.google.com/file/d/1m1tfHgkGRehBGh1jPMK4EaTgQb9EyCG7/view?usp=drivesdk
Set a property for the current lesson: currentLesson
. It will hold, obviously, the 'number' of the choosen lesson. On each button click, set the currentLesson
value to 'number'/ order of the button, i.e. for the first button, it will be '1', for the second '2' and so on.
Each button now can be disabled with [disabled] attribute, if it the currentLesson
is not the same as it's order.
HTML
<button (click)="currentLesson = '1'"
[disabled]="currentLesson !== '1'" class="primair">
Start lesson</button>
<button (click)="currentLesson = '2'"
[disabled]="currentLesson !== '2'" class="primair">
Start lesson</button>
.....//so on
Typescript
currentLesson:string;
classes = [
{
name: 'string',
level: 'string',
code: 'number',
currentLesson: '1'
}]
constructor(){
this.currentLesson=this.classes[0].currentLesson
}
Putting everything in a loop:
HTML
<div *ngFor="let class of classes; let i = index">
<button [disabled]="currentLesson !== i + 1" class="primair">
Start lesson {{i + 1}}</button>
</div>
Typescript
currentLesson:string;
classes = [
{
name: 'Lesson1',
level: 1,
code: 1,
},{
name: 'Lesson2',
level: 1,
code: 2,
},
{
name: 'Lesson3',
level: 2,
code: 3,
}]
I'm using Webmin because its a productivity gem for someone who finds command line administration a bit daunting and impenetrable.
There is a "Save and Run Now" button in the "System > Scheduled Cron Jobs > Edit Cron Job" web interface.
It displays the output of the command and is exactly what I needed.
Extending the int class and overriding __lt__ is one of the ways.
import queue
class MyInt(int):
def __lt__(self, other):
return self > other
def main():
q = queue.PriorityQueue()
q.put(MyInt(10))
q.put(MyInt(5))
q.put(MyInt(1))
while not q.empty():
print (q.get())
if __name__ == "__main__":
main()
Here I have tried this CSS for all major browser & tested: Custom color are working fine on scrollbar.
Yes, there are limitations on several versions of different browsers.
/* Only Chrome */
html::-webkit-scrollbar {width: 17px;}
html::-webkit-scrollbar-thumb {background-color: #0064a7; background-clip: padding-box; border: 1px solid #8ea5b5;}
html::-webkit-scrollbar-track {background-color: #8ea5b5; }
::-webkit-scrollbar-button {background-color: #8ea5b5;}
/* Only IE */
html {scrollbar-face-color: #0064a7; scrollbar-shadow-color: #8ea5b5; scrollbar-highlight-color: #8ea5b5;}
/* Only FireFox */
html {scrollbar-color: #0064a7 #8ea5b5;}
/* View Scrollbar */
html {overflow-y: scroll;overflow-x: hidden;}
_x000D_
<!doctype html>
<html lang="en" class="no-js">
<head>
<meta charset="utf-8">
<meta http-equiv="x-ua-compatible" content="ie=edge">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
</head>
<body>
<header>
<div id="logo"><img src="/logo.png">HTML5 Layout</div>
<nav>
<ul>
<li><a href="/">Home</a>
<li><a href="https://html-css-js.com/">HTML</a>
<li><a href="https://html-css-js.com/css/code/">CSS</a>
<li><a href="https://htmlcheatsheet.com/js/">JS</a>
</ul>
</nav>
</header>
<section>
<strong>Demonstration of a simple page layout using HTML5 tags: header, nav, section, main, article, aside, footer, address.</strong>
</section>
<section id="pageContent">
<main role="main">
<article>
<h2>Stet facilis ius te</h2>
<p>Lorem ipsum dolor sit amet, nonumes voluptatum mel ea, cu case ceteros cum. Novum commodo malorum vix ut. Dolores consequuntur in ius, sale electram dissentiunt quo te. Cu duo omnes invidunt, eos eu mucius fabellas. Stet facilis ius te, quando voluptatibus eos in. Ad vix mundi alterum, integre urbanitas intellegam vix in.</p>
</article>
<article>
<h2>Illud mollis moderatius</h2>
<p>Eum facete intellegat ei, ut mazim melius usu. Has elit simul primis ne, regione minimum id cum. Sea deleniti dissentiet ea. Illud mollis moderatius ut per, at qui ubique populo. Eum ad cibo legimus, vim ei quidam fastidii.</p>
</article>
<article>
<h2>Ex ignota epicurei quo</h2>
<p>Quo debet vivendo ex. Qui ut admodum senserit partiendo. Id adipiscing disputando eam, sea id magna pertinax concludaturque. Ex ignota epicurei quo, his ex doctus delenit fabellas, erat timeam cotidieque sit in. Vel eu soleat voluptatibus, cum cu exerci mediocritatem. Malis legere at per, has brute putant animal et, in consul utamur usu.</p>
</article>
<article>
<h2>His at autem inani volutpat</h2>
<p>Te has amet modo perfecto, te eum mucius conclusionemque, mel te erat deterruisset. Duo ceteros phaedrum id, ornatus postulant in sea. His at autem inani volutpat. Tollit possit in pri, platonem persecuti ad vix, vel nisl albucius gloriatur no.</p>
</article>
</main>
<aside>
<div>Sidebar 1</div>
<div>Sidebar 2</div>
<div>Sidebar 3</div>
</aside>
</section>
<footer>
<p>© You can copy, edit and publish this template but please leave a link to our website | <a href="https://html5-templates.com/" target="_blank" rel="nofollow">HTML5 Templates</a></p>
<address>
Contact: <a href="mailto:[email protected]">Mail me</a>
</address>
</footer>
</body>
</html>
_x000D_
Dictionaries in Swift (and other languages) are not ordered. When you iterate through the dictionary, there's no guarentee that the order will match the initialization order. In this example, Swift processes the "Square" key before the others. You can see this by adding a print statement to the loop. 25 is the 5th element of Square so largest would be set 5 times for the 5 elements in Square and then would stay at 25.
let interestingNumbers = [
"Prime": [2, 3, 5, 7, 11, 13],
"Fibonacci": [1, 1, 2, 3, 5, 8],
"Square": [1, 4, 9, 16, 25]
]
var largest = 0
for (kind, numbers) in interestingNumbers {
println("kind: \(kind)")
for number in numbers {
if number > largest {
largest = number
}
}
}
largest
This prints:
kind: Square kind: Prime kind: Fibonacci
Thanks for you answers. Shutdown hooks seams like something that would work in my case.
But I also bumped into the thing called Monitoring and Management beans:
http://java.sun.com/j2se/1.5.0/docs/guide/management/overview.html
That gives some nice possibilities, for remote monitoring, and manipulation of the java process. (Was introduced in Java 5)
It's intended that markup, i.e. the HTML tags, represent meaning and structure, not appearance. It was badly mixed up in early versions of HTML but the standards people are trying to clean that up now.
One problem with letting tags control appearance is that your pages don't play well with devices for the handicapped, such as screen readers. It also leads to having lots and lots of tags in your text that don't help clarify the meaning, but rather clutter it with information of a different level.
So CSS was thought up to move formatting/display to a different language, which is separate from the text and can easily be kept that way. Among other things, this allows switching stylesheets to change the appearance of a Web page without touching the other markup. And to be able to do that for lots of pages in one swell foop.
The tools CSS gives you to do this are not always elegant, I'm on your side there. For instance, there is no way to do effective vertical centering. And horizontal centering, if it's not just text amenable to text-align
, is not much better.
You have the choice of doing easy, effective and muddled or clean, elegant and cumbersome. I don't understand why Web developers put up with this mess, but I guess they're happy to have at least a chance to get their stuff done.
For those who are interested, I have created django-better-choices
library, that provides a nice interface to work with Django choices for Python 3.7+. It supports custom parameters, lots of useful features and is very IDE friendly.
You can define your choices as a class:
from django_better_choices import Choices
class PAGE_STATUS(Choices):
CREATED = 'Created'
PENDING = Choices.Value('Pending', help_text='This set status to pending')
ON_HOLD = Choices.Value('On Hold', value='custom_on_hold')
VALID = Choices.Subset('CREATED', 'ON_HOLD')
class INTERNAL_STATUS(Choices):
REVIEW = 'On Review'
@classmethod
def get_help_text(cls):
return tuple(
value.help_text
for value in cls.values()
if hasattr(value, 'help_text')
)
Then do the following operations and much much more:
print( PAGE_STATUS.CREATED ) # 'created'
print( PAGE_STATUS.ON_HOLD ) # 'custom_on_hold'
print( PAGE_STATUS.PENDING.display ) # 'Pending'
print( PAGE_STATUS.PENDING.help_text ) # 'This set status to pending'
'custom_on_hold' in PAGE_STATUS.VALID # True
PAGE_STATUS.CREATED in PAGE_STATUS.VALID # True
PAGE_STATUS.extract('CREATED', 'ON_HOLD') # ~= PAGE_STATUS.VALID
for value, display in PAGE_STATUS:
print( value, display )
PAGE_STATUS.get_help_text()
PAGE_STATUS.VALID.get_help_text()
And of course, it is fully supported by Django and Django Migrations:
class Page(models.Model):
status = models.CharField(choices=PAGE_STATUS, default=PAGE_STATUS.CREATED)
Full documentation here: https://pypi.org/project/django-better-choices/
use varStatus to get the index c:forEach varStatus properties
<c:forEach var="categoryName" items="${categoriesList}" varStatus="loop">
<li><a onclick="getCategoryIndex(${loop.index})" href="#">${categoryName}</a></li>
</c:forEach>
Tom's answer is quite detailed and exhaustive but you may also be interested in this simple study about Parquet vs Avro done at Allstate Insurance, summarized here:
"Overall, Parquet showed either similar or better results on every test [than Avro]. The query-performance differences on the larger datasets in Parquet’s favor are partly due to the compression results; when querying the wide dataset, Spark had to read 3.5x less data for Parquet than Avro. Avro did not perform well when processing the entire dataset, as suspected."
Have hit the same problem today.
These are poorly documented, an open issue exist.
Some for keyup, like space:
<input (keyup.space)="doSomething()">
<input (keyup.spacebar)="doSomething()">
Some for keydown
(may work for keyup too):
<input (keydown.enter)="...">
<input (keydown.a)="...">
<input (keydown.esc)="...">
<input (keydown.alt)="...">
<input (keydown.shift.esc)="...">
<input (keydown.shift.arrowdown)="...">
<input (keydown.f4)="...">
All above are from below links:
https://github.com/angular/angular/issues/18870
https://github.com/angular/angular/issues/8273
https://github.com/angular/angular/blob/master/packages/platform-browser/src/dom/events/key_events.ts
https://alligator.io/angular/binding-keyup-keydown-events/
You can use Ajax-cross-origin a jQuery plugin.
With this plugin you use jQuery.ajax()
cross domain. It uses Google services to achieve this:
The AJAX Cross Origin plugin use Google Apps Script as a proxy jSON getter where jSONP is not implemented. When you set the crossOrigin option to true, the plugin replace the original url with the Google Apps Script address and send it as encoded url parameter. The Google Apps Script use Google Servers resources to get the remote data, and return it back to the client as JSONP.
It is very simple to use:
$.ajax({
crossOrigin: true,
url: url,
success: function(data) {
console.log(data);
}
});
You can read more here: http://www.ajax-cross-origin.com/
The ensurepip
module was added in version 3.4 and then backported to 2.7.9.
So make sure your Python version is at least 2.7.9 if using Python 2, and at least 3.4 if using Python 3.
Your best bet would be using the RFC defined mime-type audio/mpeg
.
There is no difference between both statements above. AS is just a more explicit way of mentioning the alias
The title of your question is:
How to join a slice of strings into a single string?
but in fact, reg
is not a slice, but a length-three array. [...]string
is just syntactic sugar for (in this case) [3]string
.
To get an actual slice, you should write:
reg := []string {"a","b","c"}
(Try it out: https://play.golang.org/p/vqU5VtDilJ.)
Incidentally, if you ever really do need to join an array of strings into a single string, you can get a slice from the array by adding [:]
, like so:
fmt.Println(strings.Join(reg[:], ","))
(Try it out: https://play.golang.org/p/zy8KyC8OTuJ.)
@vignesh the single quotes are only needed if you are using js variables
<iframe src = "https://maps.google.com/maps?q=10.305385,77.923029&hl=es;z=14&output=embed"></iframe>
The generic view of a loop is
for (initialization; condition; increment-decrement){}
The first part initializes the code. The second part is the condition that will continue to run the loop as long as it is true. The last part is what will be run after each iteration of the loop. The last part is typically used to increment or decrement a counter, but it doesn't have to.
The same way you declare any other variable, just use the bit
type:
DECLARE @MyVar bit
Set @MyVar = 1 /* True */
Set @MyVar = 0 /* False */
SELECT * FROM [MyTable] WHERE MyBitColumn = @MyVar
From the C99 standard, 6.7(5):
A declaration specifies the interpretation and attributes of a set of identifiers. A definition of an identifier is a declaration for that identifier that:
From the C++ standard, 3.1(2):
A declaration is a definition unless it declares a function without specifying the function's body, it contains the extern specifier or a linkage-specification and neither an initializer nor a function-body, it declares a static data member in a class declaration, it is a class name declaration, or it is a typedef declaration, a using-declaration, or a using-directive.
Then there are some examples.
So interestingly (or not, but I'm slightly surprised by it), typedef int myint;
is a definition in C99, but only a declaration in C++.
It's simple-
SELECT empname,
empid,
(SELECT COUNT (profileid)
FROM profile
WHERE profile.empid = employee.empid)
AS number_of_profiles
FROM employee;
It is even simpler when you use a table join like this:
SELECT e.empname, e.empid, COUNT (p.profileid) AS number_of_profiles
FROM employee e LEFT JOIN profile p ON e.empid = p.empid
GROUP BY e.empname, e.empid;
Explanation for the subquery:
Essentially, a subquery in a select
gets a scalar value and passes it to the main query. A subquery in select
is not allowed to pass more than one row and more than one column, which is a restriction. Here, we are passing a count
to the main query, which, as we know, would always be only a number- a scalar value. If a value is not found, the subquery returns null
to the main query. Moreover, a subquery can access columns from the from
clause of the main query, as shown in my query where employee.empid
is passed from the outer query to the inner query.
Edit:
When you use a subquery in a select
clause, Oracle essentially treats it as a left join (you can see this in the explain plan for your query), with the cardinality of the rows being just one on the right for every row in the left.
Explanation for the left join
A left join is very handy, especially when you want to replace the select
subquery due to its restrictions. There are no restrictions here on the number of rows of the tables in either side of the LEFT JOIN
keyword.
For more information read Oracle Docs on subqueries and left join or left outer join.
As this is the first result on google and there's no C++20 answer yet, here's how to use std::chrono to do this:
#include <chrono>
//...
using namespace std::chrono;
int64_t timestamp = duration_cast<milliseconds>(system_clock::now().time_since_epoch()).count();
In versions of C++ before 20, system_clock's epoch being Unix epoch is a de-facto convention, but it's not standardized. If you're not on C++20, use at your own risk.
Don't make it a int()
, but make it a range()
will solve this problem.
inp = range(input("Enter a number: "))
This worked for me. Select the problematic column in Excel - highlight the whole column. Change the format to "Text". Save the Excel file.
In your SSIS package, go to the Data Flow pane for your import. Double click the Excel Source node. It should warn you that the types have changed and ask you if you want to remap them. Click Yes. Executing should now work and bring in all values.
Note: I'm using Excel 2013 and Visual Studio 2015, but I assume these instructions would work for earlier versions too.
You could use an immutable struct
public struct Data
{
public Data(int intValue, string strValue)
{
IntegerData = intValue;
StringData = strValue;
}
public int IntegerData { get; private set; }
public string StringData { get; private set; }
}
var list = new List<Data>();
Or a KeyValuePair<int, string>
using Data = System.Collections.Generic.KeyValuePair<int, string>
...
var list = new List<Data>();
list.Add(new Data(12345, "56789"));
This is how you make Android Google Maps API v2 work on your emulator.
Create a new emulator
these are the settings that are working for me. I don't know for different ones.
Start the emulator
install com.android.vending-1.apk and com.google.android.gms-1.apk via ADB install command
The longer answer is on my blog post about this issue https://medium.com/nemanja-kovacevic/how-to-make-android-google-maps-v2-work-in-android-emulator-e384f5423723
Or even easier and without the need to create a filter: use PHP's mb_strimwidth
to truncate a string to a certain width (length). Just make sure you use one of the get_
syntaxes.
For example with the content:
<?php $content = get_the_content(); echo mb_strimwidth($content, 0, 400, '...');?>
This will cut the string at 400 characters and close it with ...
.
Just add a "read more"-link to the end by pointing to the permalink with get_permalink()
.
<a href="<?php the_permalink() ?>">Read more </a>
Of course you could also build the read more
in the first line. Than just replace '...'
with '<a href="' . get_permalink() . '">[Read more]</a>'
Use the ng-repeat
directive:
<ol>
<li ng-repeat="n in [] | range:count">
<input name="telephone-{{$index}}"
ng-model="telephones[$index].value" >
</li>
</ol>
angular.module("app",[])_x000D_
.controller("ctrl",function($scope){_x000D_
$scope.count = 3;_x000D_
$scope.telephones = [];_x000D_
})_x000D_
.filter("range",function() {_x000D_
return (x,n) => Array.from({length:n},(x,index)=>(index));_x000D_
})
_x000D_
<script src="//unpkg.com/angular/angular.js"></script>_x000D_
<body ng-app="app" ng-controller="ctrl">_x000D_
<button>_x000D_
Array length_x000D_
<input type="number" ng-model="count" _x000D_
ng-change="telephones.length=count">_x000D_
</button>_x000D_
<ol>_x000D_
<li ng-repeat="n in [] | range:count">_x000D_
<input name="telephone-{{$index}}"_x000D_
ng-model="telephones[$index].value" >_x000D_
</li>_x000D_
</ol> _x000D_
{{telephones}}_x000D_
</body>
_x000D_
Starting with react_router 1.0, the props will be passed onto the anchor tag. You can directly use target="_blank"
. Discussed here: https://github.com/ReactTraining/react-router/issues/2188
Soo, your question to convert NaN at ['x',C] to value 10
the answer is..
df['x'].loc['C':]=10
df
alternative code is
df.loc['C', 'x']=10
df
nodeJS default
https://nodejs.org/api/timers.html
setInterval(function() {
// your function
}, 5000);
As of today (27, February 2020) Oracle announced that it has published all JDBC client libraries from version 11.2.0.4 (e.g. ojdbc6) to 19.3.0 (e.g. ojdbc10) on Maven Central under the group id com.oracle.database:
<dependency>
<groupId>com.oracle.database.jdbc</groupId>
<artifactId>ojdbc10</artifactId>
<version>19.3.0.0</version>
</dependency>
Assuming that your current primary key constraint is called pk_history, you can replace the following lines:
ALTER TABLE history ADD PRIMARY KEY (id)
ALTER TABLE history
DROP CONSTRAINT userId
DROP CONSTRAINT name
with these:
ALTER TABLE history DROP CONSTRAINT pk_history
ALTER TABLE history ADD CONSTRAINT pk_history PRIMARY KEY (id)
If you don't know what the name of the PK is, you can find it with the following query:
SELECT *
FROM INFORMATION_SCHEMA.TABLE_CONSTRAINTS
WHERE TABLE_NAME = 'history'
Use break
.
Unrelated to your question, I see in your code the line:
Violated = !(name.firstname == null) ? false : true;
In this line, you take a boolean value (name.firstname == null)
. Then, you apply the !
operator to it. Then, if the value is true, you set Violated to false; otherwise to true. So basically, Violated is set to the same value as the original expression (name.firstname == null)
. Why not use that, as in:
Violated = (name.firstname == null);
You don't need the SELECT
DECLARE @LastChangeDate as date
SET @LastChangeDate = GetDate()
form: NgForm;
form.reset()
This didn't work for me. It cleared the values but the controls raised an error.
But what worked for me was creating a hidden reset button and clicking the button when we want to clear the form.
<button class="d-none" type="reset" #btnReset>Reset</button>
And on the component, define the ViewChild and reference it in code.
@ViewChild('btnReset') btnReset: ElementRef<HTMLElement>;
Use this to reset the form.
this.btnReset.nativeElement.click();
Notice that the class d-none
sets display: none;
on the button.
The jQuery UI sortable plugin provides drag-and-drop reordering. A save button can extract the IDs of each item to create a comma-delimited string of those IDs, added to a hidden textbox. The textbox is returned to the server using an async postback.
This fiddle example reorders table elements, but does not save them to a database.
The sortable plugin takes one line of code to turn any list into a sortable list. If you care to use them, it also provides CSS and images to provide a visual impact to sortable list (see the example that I linked to). Developers, however, must provide code to retrieve items in their new order. I embed unique IDs of each item in the list as an HTML attribute and then retrieve those IDs via jQuery.
For example:
// ----- code executed when the document loads
$(function() {
wireReorderList();
});
function wireReorderList() {
$("#reorderExampleItems").sortable();
$("#reorderExampleItems").disableSelection();
}
function saveOrderClick() {
// ----- Retrieve the li items inside our sortable list
var items = $("#reorderExampleItems li");
var linkIDs = [items.size()];
var index = 0;
// ----- Iterate through each li, extracting the ID embedded as an attribute
items.each(
function(intIndex) {
linkIDs[index] = $(this).attr("ExampleItemID");
index++;
});
$get("<%=txtExampleItemsOrder.ClientID %>").value = linkIDs.join(",");
}
What personally me fount usable for me is:
(mousedown)="callEvent()" (keyup.enter)="$event.preventDefault()
keyup.enter
prevents the event from triggering on keyup, but it still occurs for keydown, that works for me.
To read a whole line from a file into a string, use std::getline
like so:
std::ifstream file("my_file");
std::string temp;
std::getline(file, temp);
You can do this in a loop to until the end of the file like so:
std::ifstream file("my_file");
std::string temp;
while(std::getline(file, temp)) {
//Do with temp
}
http://en.cppreference.com/w/cpp/string/basic_string/getline
As stated in the JQuery documentation
The focusout event is sent to an element when it, or any element inside of it, loses focus. This is distinct from the blur event in that it supports detecting the loss of focus on descendant elements (in other words, it supports event bubbling).
public static Item getRandomChestItem(List<Item> items) {
return items.get(new Random().nextInt(items.size()));
}
If I understood correctly, I would change the HTML to something like this:
<div id="shop">
<div class="content">
<img src="http://placehold.it/182x121"/>
<a href="#">Counter-Strike 1.6 Steam</a>
</div>
</div>
Then I would be able to use position:absolute
and position:relative
to force the blue button down.
I have created a jsfiddle: http://jsfiddle.net/y9w99/
I use the SubInACL utility for this. For example, if I wanted to give the user job on the computer VMX001 the ability to start and stop the World Wide Web Publishing Service (also know as w3svc), I would issue the following command as an Administrator:
subinacl.exe /service w3svc /grant=VMX001\job=PTO
The permissions you can grant are defined as follows (list taken from here):
F : Full Control
R : Generic Read
W : Generic Write
X : Generic eXecute
L : Read controL
Q : Query Service Configuration
S : Query Service Status
E : Enumerate Dependent Services
C : Service Change Configuration
T : Start Service
O : Stop Service
P : Pause/Continue Service
I : Interrogate Service
U : Service User-Defined Control Commands
So, by specifying PTO, I am entitling the job user to Pause/Continue, Start, and Stop the w3svc service.
There is a nifty plugin built from yonran
that can do the detection. Here is his previously answered question on StackOverflow. It works for most of the browsers. Application is as simple as this:
window.onresize = function onresize() {
var r = DetectZoom.ratios();
zoomLevel.innerHTML =
"Zoom level: " + r.zoom +
(r.zoom !== r.devicePxPerCssPx
? "; device to CSS pixel ratio: " + r.devicePxPerCssPx
: "");
}
If you are using ssh in background, use this:
sudo lsof -i -n | egrep '\<ssh\>'
Use the command dir
to list all the directories and files in a directory; ls
is a unix command.
I think this is helpful for you
<div class="container">
<div class="page-header">
<h1>About Me</h1>
</div><!--END page-header-->
<div class="row" id="features">
<div class="col-sm-6 feature">
<img src="http://lorempixel.com/200/200" alt="Web Design" class="img-circle">
</div><!--END feature-->
<div class="col-sm-6 feature">
<p>Lorem ipsum dolor sit amet, consectetur adipisicing elit, sed do eiusmod
tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam,</p>
</div><!--END feature-->
</div><!--end features-->
</div><!--end container-->
Something along these lines ....
//default icon, custom title
int n = JOptionPane.showConfirmDialog(null,"Would you like green eggs and ham?","An Inane Question",JOptionPane.YES_NO_OPTION);
String result = "?";
switch (n) {
case JOptionPane.YES_OPTION:
result = "YES";
break;
case JOptionPane.NO_OPTION:
result = "NO";
break;
default:
;
}
System.out.println("Replace? " + result);
you may also want to look at DialogDemo
->DECLARE co_id INT ;
->DECLARE sname VARCHAR(10) ;
->SELECT course_id INTO co_id FROM course_details ;
->SELECT student_name INTO sname FROM course_details;
->DECLARE val1 int;
->DECLARE val2 int;
->SELECT student__id,student_name INTO val1,val2 FROM student_details;
--HAPPY CODING--
The out of memory suggestion doesn't seem like a bad lead.
What is your program doing that it gets this error?
Is it creating a great many windows or controls? Does it create them programatically as opposed to at design time? If so, do you do this in a loop? Is that loop infinite? Are you consuming staggering boatloads of memory in some other way?
What happens when you watch the memory used by your application in task manager? Does it skyrocket to the moon? Or better yet, as suggested above use process monitor to dive into the details.
The only difference between the two elements is semantics. Both elements, by default, have the CSS rule display: block (hence block-level) applied to them; nothing more (except somewhat extra margin in some instances). However, as aforementioned, they both different greatly in terms of semantics.
The <p>
element, as its name somewhat implies, is for paragraphs. Thus, <p>
should be used when you want to create blocks of paragraph text.
The <div>
element, however, has little to no meaning semantically and therefore can be used as a generic block-level element — most commonly, people use it within layouts because it is meaningless semantically and can be used for generally anything you might require a block-level element for.
If you are willing to insert non-semantic nodes into your document, you can do this in a CSS-only IE-compatible manner by wrapping your divs in fake A tags.
<style type="text/css">
.content {
background: #ccc;
}
.fakeLink { /* This is to make the link not look like one */
cursor: default;
text-decoration: none;
color: #000;
}
a.fakeLink:hover .content {
background: #000;
color: #fff;
}
</style>
<div id="catestory">
<a href="#" onclick="return false();" class="fakeLink">
<div class="content">
<h2>some title here</h2>
<p>some content here</p>
</div>
</a>
<a href="#" onclick="return false();" class="fakeLink">
<div class="content">
<h2>some title here</h2>
<p>some content here</p>
</div>
</a>
<a href="#" onclick="return false();" class="fakeLink">
<div class="content">
<h2>some title here</h2>
<p>some content here</p>
</div>
</a>
</div>
I've found you can use a very non verbose and straightforward approach to checking for the existence various SQL Server objects this way:
IF OBJECTPROPERTY (object_id('schemaname.scalarfuncname'), 'IsScalarFunction') = 1
IF OBJECTPROPERTY (object_id('schemaname.tablefuncname'), 'IsTableFunction') = 1
IF OBJECTPROPERTY (object_id('schemaname.procname'), 'IsProcedure') = 1
This is based on the OBJECTPROPERTY function which is available in SQL 2005+. The MSDN article can be found here.
The OBJECTPROPERTY function uses the following signature:
OBJECTPROPERTY ( id , property )
You pass a literal value into the property parameter, designating the type of object you are looking for. There's a massive list of values you can supply.
use --trace-asci output.txt can output the curl details to the output.txt
I suppose you have imported math.h with #include <math.h>
So the only other reason I can see is a missing linking information. You must link your code with the -lm
option.
If you're simply trying to compile one file with gcc, just add -lm
to your command line, otherwise, give some informations about your building process.
You need to try on an emulator with the Google API's version. Each platform has two versions, Android and Android+Google APIs. Ensure that when you create the AVD, you select the Google APIs version on target field.
And the page Ensure Devices Have the Google Play services APK can be also helpful.
Get gcc for Windows . However, you will have to install MinGW as well.
You can use Visual Studio 2010 express edition as well. Link here
The .browser call has been removed in jquery 1.9 have a look at http://jquery.com/upgrade-guide/1.9/ for more details.
Right from the PHP Docs: PHP 5.3 Windows binaries uses the static version of the MCrypt library, no DLL are needed.
http://php.net/manual/en/mcrypt.requirements.php
But if you really want to download it, just go to the mcrypt sourceforge page
As already mentioned, you can get a performance increase from having your python code compiled into bytecode. This is usually handled by python itself, for imported scripts only.
Another reason you might want to compile your python code, could be to protect your intellectual property from being copied and/or modified.
You can read more about this in the Python documentation.
rand(1,20)
Docs for PHP's rand function are here:
http://php.net/manual/en/function.rand.php
Use the srand()
function to set the random number generator's seed value.
<asp:GridView ID="GridView1" AutoGenerateEditButton="True"
ondatabound="gv_DataBound" runat="server" DataSourceID="SqlDataSource1"
AutoGenerateColumns="False" width="600px">
<Columns>
<asp:BoundField HeaderText="UserId"
DataField="UserId"
SortExpression="UserId" ItemStyle-Width="400px"></asp:BoundField>
</Columns>
</asp:GridView>
By default verbose = 1,
verbose = 1, which includes both progress bar and one line per epoch
verbose = 0, means silent
verbose = 2, one line per epoch i.e. epoch no./total no. of epochs
It's possible to get this done using seaborn.lineplot()
but it involves some additional work of converting numpy arrays to pandas dataframe. Here's a complete example:
# imports
import seaborn as sns
import numpy as np
import pandas as pd
# inputs
In [41]: num = np.array([1, 2, 3, 4, 5])
In [42]: sqr = np.array([1, 4, 9, 16, 25])
# convert to pandas dataframe
In [43]: d = {'num': num, 'sqr': sqr}
In [44]: pdnumsqr = pd.DataFrame(d)
# plot using lineplot
In [45]: sns.set(style='darkgrid')
In [46]: sns.lineplot(x='num', y='sqr', data=pdnumsqr)
Out[46]: <matplotlib.axes._subplots.AxesSubplot at 0x7f583c05d0b8>
And we get the following plot:
The Java system property System.getProperty(...)
to consult is "java.runtime.name"
. This will distinguish between "OpenJDK Runtime Environment" and "Java(TM) SE Runtime Environment". They both have the same vendor - "Oracle Corporation".
This property is also included in the output for java -version
.
Hive apparently supports INSERT...VALUES starting in Hive 0.14.
Please see the section 'Inserting into tables from SQL' at: https://cwiki.apache.org/confluence/display/Hive/LanguageManual+DML
You should use position: relative
and text-align: center
on the parent element and then display: inline-block
on the child element you want to center. This is a simple CSS design pattern that will work across all major browsers. Here is an example below or check out the CodePen Example.
p {_x000D_
text-align: left;_x000D_
}_x000D_
.container {_x000D_
position: relative;_x000D_
display: block;_x000D_
text-align: center;_x000D_
}_x000D_
/* Style your object */_x000D_
_x000D_
.object {_x000D_
padding: 10px;_x000D_
color: #ffffff;_x000D_
background-color: #556270;_x000D_
}_x000D_
.centerthis {_x000D_
display: inline-block;_x000D_
}
_x000D_
<div class="container">_x000D_
_x000D_
<p>Aeroplanigera Mi Psychopathologia Subdistinctio Chirographum Intuor Sons Superbiloquentia Os Sors Sesquiseptimus Municipatio Archipresbyteratus O Conclusio Compedagogius An Maius Septentrionarius Plas Inproportionabilit Constantinopolis Particularisticus.</p>_x000D_
_x000D_
<span class="object centerthis">Something Centered</span>_x000D_
_x000D_
<p>Aeroplanigera Mi Psychopathologia Subdistinctio Chirographum Intuor Sons Superbiloquentia Os Sors Sesquiseptimus Municipatio Archipresbyteratus O Conclusio Compedagogius.</p>_x000D_
</div>
_x000D_
<?php
$str = "I bought _ sheep";
preg_match("/I bought (.*?) sheep", $str, $match);
print_r($match);
?>
Here is what I do
=IF(OR(ISBLANK(AH38),AH38=""),"",IF(AI38=0,0,AH38/AI38))
Use the OR condition OR(ISBLANK(cell), cell="")
As csgillespie said. stringsAsFactors is default on TRUE, which converts any text to a factor. So even after deleting the text, you still have a factor in your dataframe.
Now regarding the conversion, there's a more optimal way to do so. So I put it here as a reference :
> x <- factor(sample(4:8,10,replace=T))
> x
[1] 6 4 8 6 7 6 8 5 8 4
Levels: 4 5 6 7 8
> as.numeric(levels(x))[x]
[1] 6 4 8 6 7 6 8 5 8 4
To show it works.
The timings :
> x <- factor(sample(4:8,500000,replace=T))
> system.time(as.numeric(as.character(x)))
user system elapsed
0.11 0.00 0.11
> system.time(as.numeric(levels(x))[x])
user system elapsed
0 0 0
It's a big improvement, but not always a bottleneck. It gets important however if you have a big dataframe and a lot of columns to convert.
When you put the username and password in front of the host, this data is not sent that way to the server. It is instead transformed to a request header depending on the authentication schema used. Most of the time this is going to be Basic Auth which I describe below. A similar (but significantly less often used) authentication scheme is Digest Auth which nowadays provides comparable security features.
With Basic Auth, the HTTP request from the question will look something like this:
GET / HTTP/1.1
Host: example.com
Authorization: Basic Zm9vOnBhc3N3b3Jk
The hash like string you see there is created by the browser like this: base64_encode(username + ":" + password)
.
To outsiders of the HTTPS transfer, this information is hidden (as everything else on the HTTP level). You should take care of logging on the client and all intermediate servers though. The username will normally be shown in server logs, but the password won't. This is not guaranteed though. When you call that URL on the client with e.g. curl
, the username and password will be clearly visible on the process list and might turn up in the bash history file.
When you send passwords in a GET request as e.g. http://example.com/login.php?username=me&password=secure the username and password will always turn up in server logs of your webserver, application server, caches, ... unless you specifically configure your servers to not log it. This only applies to servers being able to read the unencrypted http data, like your application server or any middleboxes such as loadbalancers, CDNs, proxies, etc. though.
Basic auth is standardized and implemented by browsers by showing this little username/password popup you might have seen already. When you put the username/password into an HTML form sent via GET or POST, you have to implement all the login/logout logic yourself (which might be an advantage and allows you to more control over the login/logout flow for the added "cost" of having to implement this securely again). But you should never transfer usernames and passwords by GET parameters. If you have to, use POST instead. The prevents the logging of this data by default.
When implementing an authentication mechanism with a user/password entry form and a subsequent cookie-based session as it is commonly used today, you have to make sure that the password is either transported with POST requests or one of the standardized authentication schemes above only.
Concluding I could say, that transfering data that way over HTTPS is likely safe, as long as you take care that the password does not turn up in unexpected places. But that advice applies to every transfer of any password in any way.
round(value,significantDigit)
is the ordinary solution, however this does not operate as one would expect from a math perspective when round values ending in 5
. If the 5
is in the digit just after the one you're rounded to, these values are only sometimes rounded up as expected (i.e. 8.005
rounding to two decimal digits gives 8.01
). For certain values due to the quirks of floating point math, they are rounded down instead!
i.e.
>>> round(1.0005,3)
1.0
>>> round(2.0005,3)
2.001
>>> round(3.0005,3)
3.001
>>> round(4.0005,3)
4.0
>>> round(1.005,2)
1.0
>>> round(5.005,2)
5.0
>>> round(6.005,2)
6.0
>>> round(7.005,2)
7.0
>>> round(3.005,2)
3.0
>>> round(8.005,2)
8.01
Weird.
Assuming your intent is to do the traditional rounding for statistics in the sciences, this is a handy wrapper to get the round
function working as expected needing to import
extra stuff like Decimal
.
>>> round(0.075,2)
0.07
>>> round(0.075+10**(-2*5),2)
0.08
Aha! So based on this we can make a function...
def roundTraditional(val,digits):
return round(val+10**(-len(str(val))-1), digits)
Basically this adds a value guaranteed to be smaller than the least given digit of the string you're trying to use round
on. By adding that small quantity it preserve's round
's behavior in most cases, while now ensuring if the digit inferior to the one being rounded to is 5
it rounds up, and if it is 4
it rounds down.
The approach of using 10**(-len(val)-1)
was deliberate, as it the largest small number you can add to force the shift, while also ensuring that the value you add never changes the rounding even if the decimal .
is missing. I could use just 10**(-len(val))
with a condiditional if (val>1)
to subtract 1
more... but it's simpler to just always subtract the 1
as that won't change much the applicable range of decimal numbers this workaround can properly handle. This approach will fail if your values reaches the limits of the type, this will fail, but for nearly the entire range of valid decimal values it should work.
You can also use the decimal library to accomplish this, but the wrapper I propose is simpler and may be preferred in some cases.
Edit: Thanks Blckknght for pointing out that the 5
fringe case occurs only for certain values. Also an earlier version of this answer wasn't explicit enough that the odd rounding behavior occurs only when the digit immediately inferior to the digit you're rounding to has a 5
.
You can use anycache to do the job for you. Assuming you have a function myfunc
which creates the instance:
from anycache import anycache
class Fruits:pass
@anycache(cachedir='/path/to/your/cache')
def myfunc()
banana = Fruits()
banana.color = 'yellow'
banana.value = 30
return banana
Anycache calls myfunc
at the first time and pickles the result to a
file in cachedir
using an unique identifier (depending on the the function name and the arguments) as filename.
On any consecutive run, the pickled object is loaded.
If the cachedir
is preserved between python runs, the pickled object is taken from the previous python run.
The function arguments are also taken into account. A refactored implementation works likewise:
from anycache import anycache
class Fruits:pass
@anycache(cachedir='/path/to/your/cache')
def myfunc(color, value)
fruit = Fruits()
fruit.color = color
fruit.value = value
return fruit
The SUBTOTAL
function can be used if you want to get the count respecting any filters you use on the page.
=SUBTOTAL(103, A1:A200)
will help you get count of non-empty rows, respecting filters.
103 - is similar to COUNTA
, but ignores empty rows and also respects filters.
Reference : SUBTOTAL function
The jQuery.browser options was deprecated earlier and removed in 1.9 release along with a lot of other deprecated items like .live.
For projects and external libraries which want to upgrade to 1.9 but still want to support these features jQuery have release a migration plugin for the time being.
If you need backward compatibility you can use migration plugin.
It's the other way around: =
and ==
are for string comparisons, -eq
is for numeric ones. -eq
is in the same family as -lt
, -le
, -gt
, -ge
, and -ne
, if that helps you remember which is which.
==
is a bash-ism, by the way. It's better to use the POSIX =
. In bash the two are equivalent, and in plain sh =
is the only one guaranteed to work.
$ a=foo
$ [ "$a" = foo ]; echo "$?" # POSIX sh
0
$ [ "$a" == foo ]; echo "$?" # bash specific
0
$ [ "$a" -eq foo ]; echo "$?" # wrong
-bash: [: foo: integer expression expected
2
(Side note: Quote those variable expansions! Do not leave out the double quotes above.)
If you're writing a #!/bin/bash
script then I recommend using [[
instead. The doubled form has more features, more natural syntax, and fewer gotchas that will trip you up. Double quotes are no longer required around $a
, for one:
$ [[ $a == foo ]]; echo "$?" # bash specific
0
See also:
I assume that with interface you mean a C++ class with only pure virtual methods (i.e. without any code), instead with abstract class you mean a C++ class with virtual methods that can be overridden, and some code, but at least one pure virtual method that makes the class not instantiable. e.g.:
class MyInterface
{
public:
// Empty virtual destructor for proper cleanup
virtual ~MyInterface() {}
virtual void Method1() = 0;
virtual void Method2() = 0;
};
class MyAbstractClass
{
public:
virtual ~MyAbstractClass();
virtual void Method1();
virtual void Method2();
void Method3();
virtual void Method4() = 0; // make MyAbstractClass not instantiable
};
In Windows programming, interfaces are fundamental in COM. In fact, a COM component exports only interfaces (i.e. pointers to v-tables, i.e. pointers to set of function pointers). This helps defining an ABI (Application Binary Interface) that makes it possible to e.g. build a COM component in C++ and use it in Visual Basic, or build a COM component in C and use it in C++, or build a COM component with Visual C++ version X and use it with Visual C++ version Y. In other words, with interfaces you have high decoupling between client code and server code.
Moreover, when you want to build DLL's with a C++ object-oriented interface (instead of pure C DLL's), as described in this article, it's better to export interfaces (the "mature approach") instead of C++ classes (this is basically what COM does, but without the burden of COM infrastructure).
I'd use an interface if I want to define a set of rules using which a component can be programmed, without specifying a concrete particular behavior. Classes that implement this interface will provide some concrete behavior themselves.
Instead, I'd use an abstract class when I want to provide some default infrastructure code and behavior, and make it possible to client code to derive from this abstract class, overriding the pure virtual methods with some custom code, and complete this behavior with custom code. Think for example of an infrastructure for an OpenGL application. You can define an abstract class that initializes OpenGL, sets up the window environment, etc. and then you can derive from this class and implement custom code for e.g. the rendering process and handling user input:
// Abstract class for an OpenGL app.
// Creates rendering window, initializes OpenGL;
// client code must derive from it
// and implement rendering and user input.
class OpenGLApp
{
public:
OpenGLApp();
virtual ~OpenGLApp();
...
// Run the app
void Run();
// <---- This behavior must be implemented by the client ---->
// Rendering
virtual void Render() = 0;
// Handle user input
// (returns false to quit, true to continue looping)
virtual bool HandleInput() = 0;
// <--------------------------------------------------------->
private:
//
// Some infrastructure code
//
...
void CreateRenderingWindow();
void CreateOpenGLContext();
void SwapBuffers();
};
class MyOpenGLDemo : public OpenGLApp
{
public:
MyOpenGLDemo();
virtual ~MyOpenGLDemo();
// Rendering
virtual void Render(); // implements rendering code
// Handle user input
virtual bool HandleInput(); // implements user input handling
// ... some other stuff
};
You need to configure the war plugin:
<project>
...
<build>
<plugins>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-war-plugin</artifactId>
<version>2.3</version>
<configuration>
<warName>bird.war</warName>
</configuration>
</plugin>
</plugins>
</build>
...
</project>
More info here
In case someone has tried all of these older answers, and is still running into problems like:
requests.exceptions.ConnectionError:
SOCKSHTTPConnectionPool(host='myhost', port=80):
Max retries exceeded with url: /my/path
(Caused by NewConnectionError('<requests.packages.urllib3.contrib.socks.SOCKSConnection object at 0x106812bd0>:
Failed to establish a new connection:
[Errno 8] nodename nor servname provided, or not known',))
It may be because, by default, requests
is configured to resolve DNS queries on the local side of the connection.
Try changing your proxy URL from socks5://proxyhost:1234
to socks5h://proxyhost:1234
. Note the extra h
(it stands for hostname resolution).
The PySocks package module default is to do remote resolution, and I'm not sure why requests made their integration this obscurely divergent, but here we are.
try this for hide
$('#table_id').DataTable({
"info": false
});
and try this for change label
$('#table_id').DataTable({
"oLanguage": {
"sInfo" : "Showing _START_ to _END_ of _TOTAL_ entries",// text you want show for info section
},
});
If you want to overwrite any css in bootstrap use !important
Let's say here is the page header class in bootstrap which have 40px margin on top, my client don't like it and he want it to be 15 on top and 10 on bottom only
.page-header {
border-bottom: 1px solid #EEEEEE;
margin: 40px 0 20px;
padding-bottom: 9px;
}
So I added on class in my site.css file with the same name like this
.page-header
{
padding-bottom: 9px;
margin: 15px 0 10px 0px !important;
}
Note the !important with my margin, which will overwrite the margin of bootstarp page-header class margin.
After the docker installation you have 3 networks by default:
docker network ls
NETWORK ID NAME DRIVER SCOPE
f3be8b1ef7ce bridge bridge local
fbff927877c1 host host local
023bb5940080 none null local
I'm trying to keep this simple. So if you start a container by default it will be created inside the bridge (docker0) network.
$ docker run -d jenkins
1498e581cdba jenkins "/bin/tini -- /usr..." 3 minutes ago Up 3 minutes 8080/tcp, 50000/tcp friendly_bell
In the dockerfile of jenkins the ports 8080
and 50000
are exposed. Those ports are opened for the container on its bridge network. So everything inside that bridge network can access the container on port 8080
and 50000
. Everything in the bridge network is in the private range of "Subnet": "172.17.0.0/16",
If you want to access them from the outside you have to map the ports with -p 8080:8080
. This will map the port of your container to the port of your real server (the host network). So accessing your server on 8080
will route to your bridgenetwork on port 8080
.
Now you also have your host network. Which does not containerize the containers networking. So if you start a container in the host network it will look like this (it's the first one):
CONTAINER ID IMAGE COMMAND CREATED STATUS PORTS NAMES
1efd834949b2 jenkins "/bin/tini -- /usr..." 6 minutes ago Up 6 minutes eloquent_panini
1498e581cdba jenkins "/bin/tini -- /usr..." 10 minutes ago Up 10 minutes 8080/tcp, 50000/tcp friendly_bell
The difference is with the ports. Your container is now inside your host network. So if you open port 8080
on your host you will acces the container immediately.
$ sudo iptables -I INPUT 5 -p tcp -m tcp --dport 8080 -j ACCEPT
I've opened port 8080
in my firewall and when I'm now accesing my server on port 8080
I'm accessing my jenkins. I think this blog is also useful to understand it better.
If your app is a system app,you can use PowerManager.goToSleep() to turn screen off,you requires a special permission
before you use goToSleep(), you need use reflection just like:
public static void goToSleep(Context context) {
PowerManager powerManager= (PowerManager)context.getSystemService(Context.POWER_SERVICE);
try {
powerManager.getClass().getMethod("goToSleep", new Class[]{long.class}).invoke(powerManager, SystemClock.uptimeMillis());
} catch (IllegalAccessException e) {
e.printStackTrace();
} catch (InvocationTargetException e) {
e.printStackTrace();
} catch (NoSuchMethodException e) {
e.printStackTrace();
}
}
Now,you can use goToSleep() to turn screen off.
This is what happens when the power key is pressed to turn off the screen.
Here's an example: http://duncan99.wordpress.com/2011/10/08/google-maps-api-infowindows/
marker.addListener('mouseover', function() {
infowindow.open(map, this);
});
// assuming you also want to hide the infowindow when user mouses-out
marker.addListener('mouseout', function() {
infowindow.close();
});
For Windows host, I want to highly recommend this tutorial::
Nothing more, nothing less!
Prebuilt GNU Toolchains available for Raspberry, Beaglebone, Cubieboard, AVR (Atmel) and more
You might want to take a look at this example:
public static void main(String[] args) {
String myTime = "10:30:54";
SimpleDateFormat sdf = new SimpleDateFormat("hh:mm:ss");
Date date = null;
try {
date = sdf.parse(myTime);
} catch (ParseException e) {
e.printStackTrace();
}
String formattedTime = sdf.format(date);
System.out.println(formattedTime);
}
I find solution that instead of using ListBox I used ListView.It allows to change list items BackColor.
private void listView1_Refresh()
{
for (int i = 0; i < listView1.Items.Count; i++)
{
listView1.Items[i].BackColor = Color.Red;
for (int j = 0; j < existingStudents.Count; j++)
{
if (listView1.Items[i].ToString().Contains(existingStudents[j]))
{
listView1.Items[i].BackColor = Color.Green;
}
}
}
}
Strace stands out as a tool for investigating production systems where you can't afford to run these programs under a debugger. In particular, we have used strace in the following two situations:
For an example of analyzing using strace see my answer to this question.
Unless the variable k
is defined, that's probably what's causing your trouble. Something like this will do what you want:
var new_tweets = { };
new_tweets.k = { };
new_tweets.k.tweet_id = 98745521;
new_tweets.k.user_id = 54875;
new_tweets.k.data = { };
new_tweets.k.data.in_reply_to_screen_name = 'other_user';
new_tweets.k.data.text = 'tweet text';
// Will create the JSON string you're looking for.
var json = JSON.stringify(new_tweets);
You can also do it all at once:
var new_tweets = {
k: {
tweet_id: 98745521,
user_id: 54875,
data: {
in_reply_to_screen_name: 'other_user',
text: 'tweet_text'
}
}
}
you can convert to array so get object name
var objs = [
{name: "Joe", age: 22},
{name: "Kevin", age: 24},
{name: "Peter", age: 21}
];
document.body.innerHTML = Object.values(objs).map(function(obj){
return obj.name;
});
_x000D_
Here is a solid, modern solution. (Short a sweet )
document.addEventListener("visibilitychange", () => {
console.log( document.hasFocus() )
})
This will setup a listener to trigger when any visibility event is fired which could be a focus or blur.
Now that Homebrew/versions has been deprecated, Homebrew/core supports a few versions of formulae with a new naming format.
To install a specific version, e.g. postgresql 9.5 you simply run:
$ brew install [email protected]
To list the available versions run a search with @:
$ brew search postgresql@
==> Searching local taps...
[email protected] ? [email protected] [email protected] [email protected]
VirtualBox is a virtualizer, not an emulator. (The name kinda gives it away.) I.e. it can only virtualize a CPU that is actually there, not emulate one that isn't. In particular, VirtualBox can only virtualize x86 and AMD64 CPUs. iOS only runs on ARM CPUs.
I just tried to call a function in terminal rather then MySQL Query Browser and it works. So, it looks like I'm doing something wrong in that program...
I don't know what since I called some procedures before successfully (but there where no out parameters)...
For this one I had entered
CALL my_sqrt(4,@out_value);
SELECT @out_value;
And it results with an error:
You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near 'SELECT @out_value' at line 2
Strangely, if I write just:
CALL my_sqrt(4,@out_value);
The result message is: "Query canceled"
I guess, for now I will use only terminal...
I had the same problem: the latest update failed to install because it couldn't rename the tools folder in android-sdk-windows. I'm using AVG antivirus and disabling it didn't help, but I don't think it had anything to do with the AV program anyway.
Fact is, running the Android SDK setup apparently uses items in the "android-sdk-windows\tools" directory. I'm on Win Vista x32 so maybe that causes some unique situation - I'm not sure.
Solution:
I made a copy of the tools folder itself (keeping it at the same directory tree level, thus "tools" and "tools-copy" were both in the "android-sdk-windows" folder).
I ran Android.bat from that copy
I ran the update without problems (it updated the original, not-being-used-at-the-moment tools folder, among whatever other items it needed to).
I closed the SDK, deleted the folder (I had to kill the adb.exe process first - not sure why that always persists but you can't delete the folder without doing that).
I restarted the SDK from the normal (now-updated) tools folder. Worked like a charm!
Note that simply killing adb.exe was NOT sufficient to get around the original issue... only by copying the tools folder and using the copy to run Android for the duration of the update process was enough to rectify the problem.
I hope this helps others... it's quite vexing to have to spend time resolving basic issues like this just to run an update.
I am not sure what changed but importing the language file like this worked for me
import 'moment/src/locale/fr';
moment.locale('fr)
Notice the src in the import statement
Python 3.4 and later offer pathlib in the standard library. You could do:
from pathlib import Path
asm_pths = [pth for pth in Path.cwd().iterdir()
if pth.suffix == '.asm']
Or if you don't like list comprehensions:
asm_paths = []
for pth in Path.cwd().iterdir():
if pth.suffix == '.asm':
asm_pths.append(pth)
Path
objects can easily be converted to strings.
There are 2 differences:
2 methods creating a user and granting some privileges to him
create user userName identified by password;
grant connect to userName;
and
grant connect to userName identified by password;
do exactly the same. It creates a user and grants him the connect role.
different outcome
resource is a role in oracle, which gives you the right to create objects (tables, procedures, some more but no views!). ALL PRIVILEGES grants a lot more of system privileges.
To grant a user all privileges run you first snippet or
grant all privileges to userName identified by password;
You check if it's null
in C# like this:
if(MyObject != null) {
//do something
}
If you want to check against default (tough to understand the question on the info given) check:
if(MyObject != default(MyObject)) {
//do something
}
You can generate pairs like this:
{(x, x + 2) for x in r if x + 2 in r}
Then all that is left to do is to get a condition to make them prime, which you have already done in the first example.
A different way of doing it: (Although slower for large sets of primes)
{(x, y) for x in r for y in r if x + 2 == y}
Even if you cancel the animation in the ways above animation didStopSelector
still runs. So if you have logic states in your application driven by animations you will have problems. For this reason with the ways described above I use the context variable of UIView
animations. If you pass the current state of your program by the context param to the animation, when the animation stops your didStopSelector
function may decide if it should do something or just return based on the current state and the state value passed as context.
You need to add the python.exe in C://.../Anaconda3 installation file as well as C://.../Anaconda3/Scripts to PATH.
First go to your installation directory, in my case it is installed in C://Users/user/Anaconda3 and shift+right click and press "Open command window here" or it might be "Open powershell here", if it is powershell, just write cmd and hit enter to run command window. Then run the following command setx PATH %cd%
Then go to C://Users/user/Anaconda3/Scripts and open the command window there as above, then run the same command "setx PATH %cd%"
xs:boolean
is predefined with regard to what kind of input it accepts. If you need something different, you have to define your own enumeration:
<xs:simpleType name="my:boolean">
<xs:restriction base="xs:string">
<xs:enumeration value="True"/>
<xs:enumeration value="False"/>
</xs:restriction>
</xs:simpleType>
From Jimmy Bogard: CreateMap<Foo, Bar>().ForMember(x => x.Blarg, opt => opt.Ignore());
It's in one of the comments at his blog.
I know this is a very old question but it still doesn't have an accepted answer. I see that you want the following removed: html tags that are "empty" and white spaces based on an html string.
I have come up with a solution based on your comment for the output you are looking for:
Trimming using JavaScript<br /><br /><br /><br />all leading and trailing white spaces
var str = "<p> </p><div> </div>Trimming using JavaScript<br /><br /><br /><br />all leading and trailing white spaces<p> </p><div> </div>";_x000D_
console.log(str.trim().replace(/ /g, '').replace(/<[^\/>][^>]*><\/[^>]+>/g, ""));
_x000D_
.trim()
removes leading and trailing whitespace
.replace(/ /g, '')
removes
.replace(/<[^\/>][^>]*><\/[^>]+>/g, ""));
removes empty tags
You can save a BufferedImage
object using write method of the javax.imageio.ImageIO
class. The signature of the method is like this:
public static boolean write(RenderedImage im, String formatName, File output) throws IOException
Here im
is the RenderedImage
to be written, formatName
is the String containing the informal name of the format (e.g. png) and output
is the file object to be written to. An example usage of the method for PNG file format is shown below:
ImageIO.write(image, "png", file);
Are u using this datepicker http://jqueryui.com/demos/datepicker/ ? if yes there are options to set the default Date.If you didn't change anything , by default it will show the current date.
any way this will gives current date
$( ".selector" ).datepicker({ defaultDate: new Date() });
I would try fossil scm and the Chisel hosting service
simple, self contained and easily interchangeable with git should you desire in future
We have enough answers here but I want to put my 5 cents.
I have Windows 10 installed on 10/30/2015
and Creators Update installed on 04/14/2017
on top of my previous installation. All of the methods described in the answers before mine gives me the date of the Creators Update installation.
I've managed to find few files` date of creation which matches the real (clean) installation date of my Windows 10:
C:\Windows
C:\
Sessions are stored on the server and are set from server side code, not client side code such as JavaScript.
What you want is a cookie, someone's given a brilliant explanation in this Stack Overflow question here: How do I set/unset cookie with jQuery?
You could potentially use sessions and set/retrieve them with jQuery and AJAX, but it's complete overkill if Cookies will do the trick.
You have to use Javascript Filereader for this. (Introduction into filereader-api: http://www.html5rocks.com/en/tutorials/file/dndfiles/)
Once the user have choose a image you can read the file-path of the chosen image and place it into your html.
Example:
<form id="form1" runat="server">
<input type='file' id="imgInp" />
<img id="blah" src="#" alt="your image" />
</form>
Javascript:
function readURL(input) {
if (input.files && input.files[0]) {
var reader = new FileReader();
reader.onload = function (e) {
$('#blah').attr('src', e.target.result);
}
reader.readAsDataURL(input.files[0]);
}
}
$("#imgInp").change(function(){
readURL(this);
});
If the number of fields in the CSV is constant then you could do something like this:
select a[1], a[2], a[3], a[4]
from (
select regexp_split_to_array('a,b,c,d', ',')
) as dt(a)
For example:
=> select a[1], a[2], a[3], a[4] from (select regexp_split_to_array('a,b,c,d', ',')) as dt(a);
a | a | a | a
---+---+---+---
a | b | c | d
(1 row)
If the number of fields in the CSV is not constant then you could get the maximum number of fields with something like this:
select max(array_length(regexp_split_to_array(csv, ','), 1))
from your_table
and then build the appropriate a[1], a[2], ..., a[M]
column list for your query. So if the above gave you a max of 6, you'd use this:
select a[1], a[2], a[3], a[4], a[5], a[6]
from (
select regexp_split_to_array(csv, ',')
from your_table
) as dt(a)
You could combine those two queries into a function if you wanted.
For example, give this data (that's a NULL in the last row):
=> select * from csvs;
csv
-------------
1,2,3
1,2,3,4
1,2,3,4,5,6
(4 rows)
=> select max(array_length(regexp_split_to_array(csv, ','), 1)) from csvs;
max
-----
6
(1 row)
=> select a[1], a[2], a[3], a[4], a[5], a[6] from (select regexp_split_to_array(csv, ',') from csvs) as dt(a);
a | a | a | a | a | a
---+---+---+---+---+---
1 | 2 | 3 | | |
1 | 2 | 3 | 4 | |
1 | 2 | 3 | 4 | 5 | 6
| | | | |
(4 rows)
Since your delimiter is a simple fixed string, you could also use string_to_array
instead of regexp_split_to_array
:
select ...
from (
select string_to_array(csv, ',')
from csvs
) as dt(a);
Thanks to Michael for the reminder about this function.
You really should redesign your database schema to avoid the CSV column if at all possible. You should be using an array column or a separate table instead.
I made the following 'universal' cross thread call class for my own purpose, but I think it's worth to share it:
using System;
using System.Collections.Generic;
using System.Text;
using System.Windows.Forms;
namespace CrossThreadCalls
{
public static class clsCrossThreadCalls
{
private delegate void SetAnyPropertyCallBack(Control c, string Property, object Value);
public static void SetAnyProperty(Control c, string Property, object Value)
{
if (c.GetType().GetProperty(Property) != null)
{
//The given property exists
if (c.InvokeRequired)
{
SetAnyPropertyCallBack d = new SetAnyPropertyCallBack(SetAnyProperty);
c.BeginInvoke(d, c, Property, Value);
}
else
{
c.GetType().GetProperty(Property).SetValue(c, Value, null);
}
}
}
private delegate void SetTextPropertyCallBack(Control c, string Value);
public static void SetTextProperty(Control c, string Value)
{
if (c.InvokeRequired)
{
SetTextPropertyCallBack d = new SetTextPropertyCallBack(SetTextProperty);
c.BeginInvoke(d, c, Value);
}
else
{
c.Text = Value;
}
}
}
And you can simply use SetAnyProperty() from another thread:
CrossThreadCalls.clsCrossThreadCalls.SetAnyProperty(lb_Speed, "Text", KvaserCanReader.GetSpeed.ToString());
In this example the above KvaserCanReader class runs its own thread and makes a call to set the text property of the lb_Speed label on the main form.
In Windows 7, make sure Event Viewer closed before deleting.
refs
is not a DOM element. In order to find a DOM element, you need to use findDOMNode
menthod first.
Do, this
var node = ReactDOM.findDOMNode(this.refs.btn);
node.classList.toggle('btn-menu-open');
alternatively, you can use like this (almost actual code)
this.state.styleCondition = false;
<a ref="btn" href="#" className={styleCondition ? "btn-menu show-on-small" : ""}><i></i></a>
you can then change styleCondition
based on your state change conditions.
As mentioned by ecdpalma below, git 1.7.12+ (August 2012) has enhanced the option --root
for git rebase
:
"git rebase [-i] --root $tip
" can now be used to rewrite all the history leading to "$tip
" down to the root commit.
That new behavior was initially discussed here:
I personally think "
git rebase -i --root
" should be made to just work without requiring "--onto
" and let you "edit" even the first one in the history.
It is understandable that nobody bothered, as people are a lot less often rewriting near the very beginning of the history than otherwise.
The patch followed.
(original answer, February 2010)
As mentioned in the Git FAQ (and this SO question), the idea is:
git reset --hard
Rebase branch on top of changed commit, using:
git rebase --onto <tmp branch> <commit after changed> <branch>`
The trick is to be sure the information you want to remove is not reintroduced by a later commit somewhere else in your file. If you suspect that, then you have to use filter-branch --tree-filter
to make sure the content of that file does not contain in any commit the sensible information.
In both cases, you end up rewriting the SHA1 of every commit, so be careful if you have already published the branch you are modifying the contents of. You probably shouldn’t do it unless your project isn’t yet public and other people haven’t based work off the commits you’re about to rewrite.
--create a user that you want to use the database as:
create role neil;
--create the user for the web server to connect as:
create role webgui noinherit login password 's3cr3t';
--let webgui set role to neil:
grant neil to webgui; --this looks backwards but is correct.
webgui
is now in the neil
group, so webgui
can call set role neil
. However, webgui
did not inherit neil
's permissions.
Later, login as webgui:
psql -d some_database -U webgui
(enter s3cr3t as password)
set role neil;
webgui
does not need superuser
permission for this.
You want to set role
at the beginning of a database session and reset it at the end of the session. In a web app, this corresponds to getting a connection from your database connection pool and releasing it, respectively. Here's an example using Tomcat's connection pool and Spring Security:
public class SetRoleJdbcInterceptor extends JdbcInterceptor {
@Override
public void reset(ConnectionPool connectionPool, PooledConnection pooledConnection) {
Authentication authentication = SecurityContextHolder.getContext().getAuthentication();
if(authentication != null) {
try {
/*
use OWASP's ESAPI to encode the username to avoid SQL Injection. Can't use parameters with SET ROLE. Need to write PG codec.
Or use a whitelist-map approach
*/
String username = ESAPI.encoder().encodeForSQL(MY_CODEC, authentication.getName());
Statement statement = pooledConnection.getConnection().createStatement();
statement.execute("set role \"" + username + "\"");
statement.close();
} catch(SQLException exp){
throw new RuntimeException(exp);
}
}
}
@Override
public Object invoke(Object proxy, Method method, Object[] args) throws Throwable {
if("close".equals(method.getName())){
Statement statement = ((Connection)proxy).createStatement();
statement.execute("reset role");
statement.close();
}
return super.invoke(proxy, method, args);
}
}
Objects have methods and attributes(variables) which are derived from classes, in order to specify which methods and variables belong to a particular object the this
reserved word is used. in the case of instance variables, it is important to understand the difference between implicit and explicit parameters. Take a look at the fillTank
call for the audi
object.
Car audi= new Car();
audi.fillTank(5); // 5 is the explicit parameter and the car object is the implicit parameter
The value in the parenthesis is the implicit parameter and the object itself is the explicit parameter, methods that don't have explicit parameters, use implicit parameters, the fillTank
method has both an explicit and an implicit parameter.
Lets take a closer look at the fillTank
method in the Car
class
public class Car()
{
private double tank;
public Car()
{
tank = 0;
}
public void fillTank(double gallons)
{
tank = tank + gallons;
}
}
In this class we have an instance variable "tank". There could be many objects that use the tank instance variable, in order to specify that the instance variable "tank" is used for a particular object, in our case the "audi" object we constructed earlier, we use the this
reserved keyword. for instance variables the use of 'this' in a method indicates that the instance variable, in our case "tank", is instance variable of the implicit parameter.
The java compiler automatically adds the this
reserved word so you don't have to add it, it's a matter of preference. You can not use this
without a dot(.) because those are the rules of java ( the syntax).
In summary.
this
on an instance variable in a method indicates that, the instance variable belongs to the implicit parameter, or that it is an instance variable of the implicit parameter. this
cannot be used without a dot(.) this is syntactically invalidthis
can also be used to distinguish between local variables and global variables that have the same namethis
reserve word also applies to methods, to indicate a method belongs to a particular object. You probably want to use the assets_base_urls
configuration.
framework:
templating:
assets_base_urls:
http: [http://www.website.com]
ssl: [https://www.website.com]
http://symfony.com/doc/current/reference/configuration/framework.html#assets
Note that the configuration is different since Symfony 2.7:
framework:
# ...
assets:
base_urls:
- 'http://cdn.example.com/'
I do not agree and do not recommend to return a vector
:
vector <double> vectorial(vector <double> a, vector <double> b)
{
vector <double> c{ a[1] * b[2] - b[1] * a[2], -a[0] * b[2] + b[0] * a[2], a[0] * b[1] - b[0] * a[1] };
return c;
}
This is much faster:
void vectorial(vector <double> a, vector <double> b, vector <double> &c)
{
c[0] = a[1] * b[2] - b[1] * a[2]; c[1] = -a[0] * b[2] + b[0] * a[2]; c[2] = a[0] * b[1] - b[0] * a[1];
}
I tested on Visual Studio 2017 with the following results in release mode:
8.01 MOPs by reference
5.09 MOPs returning vector
In debug mode, things are much worse:
0.053 MOPS by reference
0.034 MOPs by return vector
Thast should be easy enough
if( myList.Any( s => s.Contains(stringToCheck))){
//do your stuff here
}
This is not possible in Lombok. Although it would be a really nice feature, it requires resolution to find the constructors of the super class. The super class is only known by name the moment Lombok gets invoked. Using the import statements and the classpath to find the actual class is not trivial. And during compilation you cannot just use reflection to get a list of constructors.
It is not entirely impossible but the results using resolution in val
and @ExtensionMethod
have taught us that is it hard and error-prone.
Disclosure: I am a Lombok developer.
[x for x in ['a','b'] if x in ['b', 'a', 'foo', 'bar']]
The reason I think this is better than the chosen answer is that you really don't need to call the 'all()' function. Empty list evaluates to False in IF statements, non-empty list evaluates to True.
if [x for x in ['a','b'] if x in ['b', 'a', 'foo', 'bar']]:
...Do something...
Example:
>>> [x for x in ['a','b'] if x in ['b', 'a', 'foo', 'bar']]
['a', 'b']
>>> [x for x in ['G','F'] if x in ['b', 'a', 'foo', 'bar']]
[]
May I redefine you question as below
Can we have our own back-end to send push notification to Chrome, Firefox, Opera & Safari?
Yes. By today (2017/05), you can use same client and server side implementation to handle Chrome, Firefox and Opera (no Safari). Because they have implemented web push notifications in a same way. That is Push API protocol by W3C. But Safari have their own old architecture. So we have to maintain Safari separately.
Refer browser-push repo for guide lines to implement web push notification for your web-app with your own back-end. It explains with examples how you can add web push notification support for your web application without any third party services.
As pointed by @RSK IE8 doesn't support background-size. To figure out a way to deal with this, I used some IE specific hacks as showed here:
//IE8.0 Hack!
@media \0screen {
.brand {
background-image: url("./images/logo1.png");
margin-top: 8px;
}
.navbar .brand {
margin-left: -2px;
padding-bottom: 2px;
}
}
//IE7.0 Hack!
*+html .brand {
background-image: url("./images/logo1.png");
margin-top: 8px;
}
*+html .navbar .brand {
margin-left: -2px;
padding-bottom: 2px;
}
Using this I was able to change my logo image to a ugly resided picture. But the final result is fine. I suggest u try something like this.
A string to char array is as simple as
String str = "someString";
char[] charArray = str.toCharArray();
Can you explain a little more on what you are trying to do?
* Update *
if I am understanding your new comment, you can use a byte array and example is provided.
byte[] bytes = ByteBuffer.allocate(4).putInt(1695609641).array();
for (byte b : bytes) {
System.out.format("0x%x ", b);
}
With the following output
0x65 0x10 0xf3 0x29
You can use this -
function sleep(milliseconds) {
var start = new Date().getTime();
for (var i = 0; i < 1e7; i++) {
if ((new Date().getTime() - start) > milliseconds){
break;
}
}
}
The string is a .NET string so you can use .NET methods. In your case:
$index = "The string".IndexOf(" ")
will return 3, which is the first occurrence of space in the string. For more information see: http://msdn.microsoft.com/en-us/library/system.string.aspx
For your need try something like:
$s.SubString($s.IndexOf("_") + 1, $s.LastIndexOf(".") - $s.IndexOf("_") - 1)
Or you could use regexps:
if ($s -Match '(_)(.*)(\.)[^.]*$') { $matches[2] }
(has to be adjusted depending on exactly what you need).
Try this
.nav.navbar-nav.navbar-right li a span{
color: blue;
}
If it doesn't work try this
.nav.navbar-nav.navbar-right li a {
color: blue;
}
You can do it in two ways:
First:
render() {
const data =[{"name":"test1"},{"name":"test2"}];
const listItems = data.map((d) => <li key={d.name}>{d.name}</li>);
return (
<div>
{listItems }
</div>
);
}
Second: Directly write the map function in the return
render() {
const data =[{"name":"test1"},{"name":"test2"}];
return (
<div>
{data.map(function(d, idx){
return (<li key={idx}>{d.name}</li>)
})}
</div>
);
}
Firstly, you should check if your image column is BLOB type!
I don't know anything about your SQL table, but if I'll try to make my own as an example.
We got fields id
(int), image
(blob) and image_name
(varchar(64)).
So the code should look like this (assume ID is always '1' and let's use this mysql_query):
$image = addslashes(file_get_contents($_FILES['image']['tmp_name'])); //SQL Injection defence!
$image_name = addslashes($_FILES['image']['name']);
$sql = "INSERT INTO `product_images` (`id`, `image`, `image_name`) VALUES ('1', '{$image}', '{$image_name}')";
if (!mysql_query($sql)) { // Error handling
echo "Something went wrong! :(";
}
You are doing it wrong in many ways. Don't use mysql functions - they are deprecated! Use PDO or MySQLi. You should also think about storing files locations on disk. Using MySQL for storing images is thought to be Bad Idea™. Handling SQL table with big data like images can be problematic.
Also your HTML form is out of standards. It should look like this:
<form action="insert_product.php" method="POST" enctype="multipart/form-data">
<label>File: </label><input type="file" name="image" />
<input type="submit" />
</form>
Sidenote:
When dealing with files and storing them as a BLOB, the data must be escaped using mysql_real_escape_string()
, otherwise it will result in a syntax error.
You mean:
Wscript.Echo "Like this?"
If you run that under wscript.exe
(the default handler for the .vbs extension, so what you'll get if you double-click the script) you'll get a "MessageBox" dialog with your text in it. If you run that under cscript.exe
you'll get output in your console window.
No, since the new throw
is not in the try
block directly.
You can setup _JAVA_OPTIONS
instead of JAVA_OPTS
. This should work without $_JAVA_OPTIONS
.
Try from your dedicated server to telnet to smtp.gmail.com on port 465. It might be blocked by your internet provider
The problem is using with statement:
with open('strings.json') as json_data:
d = json.load(json_data)
pprint(d)
The file is going to be implicitly closed already. There is no need to call json_data.close()
again.
You can use fiddler web debugger to import the HAR and then it is very easy from their on... Ctrl+A (select all) then Ctrl+c (copy summary) then paste in excel and have fun
You could also use the __getitem__
method combined with map
like the following:
L = ['a', 'b', 'c', 'd', 'e', 'f', 'g', 'h']
Idx = [0, 3, 7]
res = list(map(L.__getitem__, Idx))
print(res)
# ['a', 'd', 'h']
Perhaps NSValue, just make sure your pointers are still valid after the delay (ie. no objects allocated on stack).
Handy Swift 4 extension, in case it's helpful to someone else. Works even if the current view controller does not display a navigation bar.
import UIKit
extension UINavigationController {
static public func navBarHeight() -> CGFloat {
let nVc = UINavigationController(rootViewController: UIViewController(nibName: nil, bundle: nil))
let navBarHeight = nVc.navigationBar.frame.size.height
return navBarHeight
}
}
Usage:
UINavigationController.navBarHeight()
hi friend in this case you can use the
AppendDataBound="true"
and after this use the list item. for e.g.:
<asp:DropDownList ID="DropDownList1" runat="server" AppendDataBoundItems="true">
<asp:ListItem Text="--Select One--" Value="" />
</asp:DropDownList>
but the problem in this is after second time select data are append with old data.
The .NET Framework design guidelines recommend using the Try methods. Avoiding exceptions is usually a good idea.
Convert.ToDouble(object)
will do ((IConvertible) object).ToDouble(null);
Which will call Convert.ToDouble(string, null)
So it's faster to call the string version.
However, the string version just does this:
if (value == null)
{
return 0.0;
}
return double.Parse(value, NumberStyles.Float | NumberStyles.AllowThousands, provider);
So it's faster to do the double.Parse
directly.
Extending on @Marek's answer: if you want to avoid strings to be turned into factors and efficiency is not a concern try
do.call(rbind, lapply(your_list, data.frame, stringsAsFactors=FALSE))
You almost have it, you just left out 0 and forgot the quantifier.
word.matches("^[0-9,;]+$")
Since tr:not(:first-child)
is not supported by IE 6, 7, 8. You can use the help of jQuery.
You may find it here
If you have Boost installed (which you should):
#include <boost/lexical_cast.hpp>
int num = 4;
std::string str = boost::lexical_cast<std::string>(num);
Yes. The VBA equivalent of AltEnter is to use a linebreak character:
ActiveCell.Value = "I am a " & Chr(10) & "test"
Note that this automatically sets WrapText
to True.
Proof:
Sub test()
Dim c As Range
Set c = ActiveCell
c.WrapText = False
MsgBox "Activcell WrapText is " & c.WrapText
c.Value = "I am a " & Chr(10) & "test"
MsgBox "Activcell WrapText is " & c.WrapText
End Sub
By using the requestInterceptor, it worked for me:
const ui = SwaggerUIBundle({
...
requestInterceptor: (req) => {
req.headers.Authorization = "Bearer " + req.headers.Authorization;
return req;
},
...
});
Try this :
<script>
window.jQuery || document.write('<script src="js/jquery.min.js"><\/script>')
</script>
This checks if jQuery is available or not, if not it will add one dynamically from path specified.
Ref: Simulate an "include_once" for jQuery
OR
include_once equivalent for js. Ref: https://raw.github.com/kvz/phpjs/master/functions/language/include_once.js
function include_once (filename) {
// http://kevin.vanzonneveld.net
// + original by: Legaev Andrey
// + improved by: Kevin van Zonneveld (http://kevin.vanzonneveld.net)
// + improved by: Michael White (http://getsprink.com)
// + input by: Brett Zamir (http://brett-zamir.me)
// + bugfixed by: Kevin van Zonneveld (http://kevin.vanzonneveld.net)
// + bugfixed by: Brett Zamir (http://brett-zamir.me)
// - depends on: include
// % note 1: Uses global: php_js to keep track of included files (though private static variable in namespaced version)
// * example 1: include_once('http://www.phpjs.org/js/phpjs/_supporters/pj_test_supportfile_2.js');
// * returns 1: true
var cur_file = {};
cur_file[this.window.location.href] = 1;
// BEGIN STATIC
try { // We can't try to access on window, since it might not exist in some environments, and if we use "this.window"
// we risk adding another copy if different window objects are associated with the namespaced object
php_js_shared; // Will be private static variable in namespaced version or global in non-namespaced
// version since we wish to share this across all instances
} catch (e) {
php_js_shared = {};
}
// END STATIC
if (!php_js_shared.includes) {
php_js_shared.includes = cur_file;
}
if (!php_js_shared.includes[filename]) {
if (this.include(filename)) {
return true;
}
} else {
return true;
}
return false;
}
Additionally you will probably want to redirect user to the given in headers URL. So finally it will looks like this:
$.ajax({
//.... other definition
complete:function(xmlHttp){
if(xmlHttp.status.toString()[0]=='3'){
top.location.href = xmlHttp.getResponseHeader('Location');
}
});
UPD: Opps. Have the same task, but it not works. Doing this stuff. I'll show you solution when I'll find it.
supposing
here ist what worked for me:
mvn install dependency:copy-dependencies -DincludeScope=runtime -DoutputDirectory=target/lib
This is how i ended up doing it.
<LinearLayout
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:orientation="horizontal">
<View
android:layout_width="20dp"
android:layout_height="20dp"
android:background="@drawable/circle"
android:drawableStart="@drawable/ic_bullet_point" />
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginLeft="10dp"
android:text="Your text"
android:textColor="#000000"
android:textSize="14sp" />
</LinearLayout>
and the code for drawbale/circle.xml is
<?xml version="1.0" encoding="utf-8"?>
<shape xmlns:android="http://schemas.android.com/apk/res/android"
android:innerRadius="0dp"
android:shape="ring"
android:thickness="5dp"
android:useLevel="false">
<solid android:color="@color/black1" />
</shape>
A quick fix would be to overlay the radio button input style using :after
, however it's probably a better practice to create your own custom toolkit.
input[type='radio']:after {_x000D_
width: 15px;_x000D_
height: 15px;_x000D_
border-radius: 15px;_x000D_
top: -2px;_x000D_
left: -1px;_x000D_
position: relative;_x000D_
background-color: #d1d3d1;_x000D_
content: '';_x000D_
display: inline-block;_x000D_
visibility: visible;_x000D_
border: 2px solid white;_x000D_
}_x000D_
_x000D_
input[type='radio']:checked:after {_x000D_
width: 15px;_x000D_
height: 15px;_x000D_
border-radius: 15px;_x000D_
top: -2px;_x000D_
left: -1px;_x000D_
position: relative;_x000D_
background-color: #ffa500;_x000D_
content: '';_x000D_
display: inline-block;_x000D_
visibility: visible;_x000D_
border: 2px solid white;_x000D_
}
_x000D_
<input type='radio' name="gender"/>_x000D_
<input type='radio' name="gender"/>
_x000D_
Try the below data dictionary views.
tabs
dba_tables
all_tables
user_tables
If you are using Debian style virtual host configuration (sites-available/sites-enabled), one way to set a Default VirtualHost is to include the specific configuration file first in httpd.conf or apache.conf (or what ever is your main configuration file).
# To set default VirtualHost, include it before anything else.
IncludeOptional sites-enabled/my.site.com.conf
# Load config files in the "/etc/httpd/conf.d" directory, if any.
IncludeOptional conf.d/*.conf
# Load virtual host config files from "/etc/httpd/sites-enabled/".
IncludeOptional sites-enabled/*.conf
I've just pushed my own framework, CATCH, out there. It's still under development but I believe it already surpasses most other frameworks. Different people have different criteria but I've tried to cover most ground without too many trade-offs. Take a look at my linked blog entry for a taster. My top five features are:
It also has Objective-C bindings. The project is hosted on Github
@-webkit-keyframes blinker {
0% { opacity: 1.0; }
50% { opacity: 0.0; }
100% { opacity: 1.0; }
}
@-webkit-keyframes blinker { _x000D_
0% { opacity: 1.0; }_x000D_
50% { opacity: 0.0; }_x000D_
100% { opacity: 1.0; }_x000D_
}_x000D_
_x000D_
.blink {_x000D_
width: 10px;_x000D_
height: 10px;_x000D_
border-radius: 10px;_x000D_
animation: blinker 2s linear infinite;_x000D_
background-color: red;_x000D_
margin-right: 5px;_x000D_
}_x000D_
_x000D_
.content {_x000D_
display: flex;_x000D_
flex-direction: row;_x000D_
align-items: center;_x000D_
}
_x000D_
<div class="content">_x000D_
<i class="blink"></i>_x000D_
LIVE_x000D_
</div>
_x000D_
We are using akka with its camel plugin to distribute our analysis and trending processing for twimpact.com. We have to process between 50 and 1000 messages per second. In addition to multi-node processing with camel it is also used to distribute work on a single processor to multiple workers for maximum performance. Works quite well, but requires some understanding of how to handle congestions.
If there is a null
in an array and you want to avoid it:
db.test.find({"contain" : {$ne :[] }}).pretty()
You could use use max
and min
with dict.get
:
maximum = max(mydict, key=mydict.get) # Just use 'min' instead of 'max' for minimum.
print(maximum, mydict[maximum])
# D 87
Looks like the path you gave doesn't have any bootstrap files in them.
href="~/lib/bootstrap/dist/css/bootstrap.min.css"
Make sure the files exist over there , else point the files to the correct path, which should be in your case
href="~/node_modules/bootstrap/dist/css/bootstrap.min.css"
From the documentation (help copy-item -full
):
-force <SwitchParameter>
Allows cmdlet to override restrictions such as renaming existing files as long as security is not compromised.
Required? false
Position? named
Default value False
Accept pipeline input? false
Accept wildcard characters? false
In general, an alternative to case when ...
is coalesce(nullif(x,bad_value),y)
(that cannot be used in OP's case). For example,
select coalesce(nullif(y,''),x), coalesce(nullif(x,''),y), *
from ( (select 'abc' as x, '' as y)
union all (select 'def' as x, 'ghi' as y)
union all (select '' as x, 'jkl' as y)
union all (select null as x, 'mno' as y)
union all (select 'pqr' as x, null as y)
) q
gives:
coalesce | coalesce | x | y
----------+----------+-----+-----
abc | abc | abc |
ghi | def | def | ghi
jkl | jkl | | jkl
mno | mno | | mno
pqr | pqr | pqr |
(5 rows)
Whenever I run into this issue with newer browsers, I just use AppRobotic Personal edition to click specific screen coordinates, or tab through the buttons and click.
Basically it's just using its macro functionality, but won't work on headless setups though.
I believe fill
is the fastest way to do this.
a = np.empty(10)
a.fill(7)
You should also always avoid iterating like you are doing in your example. A simple a[:] = v
will accomplish what your iteration does using numpy broadcasting.
Even though CMD is written down in the Dockerfile, it really is runtime information. Just like EXPOSE, but contrary to e.g. RUN and ADD. By this, I mean that you can override it later, in an extending Dockerfile, or simple in your run command, which is what you are experiencing. At all times, there can be only one CMD.
If you want to run multiple services, I indeed would use supervisor. You can make a supervisor configuration file for each service, ADD these in a directory, and run the supervisor with supervisord -c /etc/supervisor
to point to a supervisor configuration file which loads all your services and looks like
[supervisord]
nodaemon=true
[include]
files = /etc/supervisor/conf.d/*.conf
If you would like more details, I wrote a blog on this subject here: http://blog.trifork.com/2014/03/11/using-supervisor-with-docker-to-manage-processes-supporting-image-inheritance/
In my case I had trouble with the "Environment variables" while adding reference to my COM DLL.
When I added the reference to my project, I was looking for P:\Core path, whereas I had added the c:\core path in past into path environment varaible.
So my code was attempting wrong path first. I removed that and un-registered the DLL reference and re-registered my DLL reference using (regsvr32). Hope this helps.
You Can simply Use One Jsp Page To accomplish the task.
<%@page contentType="text/html" pageEncoding="UTF-8"%>
<%@page import="java.sql.*"%>
<!DOCTYPE html>
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
<title>JSP Page</title>
</head>
<body>
<%
String username=request.getParameter("user_name");
String password=request.getParameter("password");
String role=request.getParameter("role");
try
{
Class.forName("com.mysql.jdbc.Driver");
Connection con=DriverManager.getConnection("jdbc:mysql://localhost:3306/t_fleet","root","root");
Statement st=con.createStatement();
String query="select * from tbl_login where user_name='"+username+"' and password='"+password+"' and role='"+role+"'";
ResultSet rs=st.executeQuery(query);
while(rs.next())
{
session.setAttribute( "user_name",rs.getString(2));
session.setMaxInactiveInterval(3000);
response.sendRedirect("homepage.jsp");
}
%>
<%}
catch(Exception e)
{
out.println(e);
}
%>
</body>
I have use username, password and role to get into the system. One more thing to implement is you can do page permission checking through jsp and javascript function.
To update a subset of fields, you can use update_fields
:
survey.save(update_fields=["active"])
The update_fields
argument was added in Django 1.5. In earlier versions, you could use the update()
method instead:
Survey.objects.filter(pk=survey.pk).update(active=True)
You will want to use the YYYYMMDD for unambiguous date determination in SQL Server.
insert into table1(approvaldate)values('20120618 10:34:09 AM');
If you are married to the dd-mm-yy hh:mm:ss xm
format, you will need to use CONVERT with the specific style.
insert into table1 (approvaldate)
values (convert(datetime,'18-06-12 10:34:09 PM',5));
5
here is the style for Italian dates. Well, not just Italians, but that's the culture it's attributed to in Books Online.
Update:
I'm not sure when or if the license changed for the iText# library, but it is licensed under AGPL which means it must be licensed if included with a closed-source product. The question does not (currently) require free or open-source libraries. One should always investigate the license type of any library used in a project.
I have used iText# with success in .NET C# 3.5; it is a port of the open source Java library for PDF generation and it's free.
There is a NuGet package available for iTextSharp version 5 and the official developer documentation, as well as C# examples, can be found at itextpdf.com
I am adding this answer in case someone else would like to store the host entry set in a txt file formatted like the normal host file. This looks for a TAB delimiter. This is based off of the answers from @Rashy and @that0n3guy. The differences can be noticed around the FOR command.
@echo off
TITLE Modifying your HOSTS file
ECHO.
:: BatchGotAdmin
:-------------------------------------
REM --> Check for permissions
>nul 2>&1 "%SYSTEMROOT%\system32\cacls.exe" "%SYSTEMROOT%\system32\config\system"
REM --> If error flag set, we do not have admin.
if '%errorlevel%' NEQ '0' (
echo Requesting administrative privileges...
goto UACPrompt
) else ( goto gotAdmin )
:UACPrompt
echo Set UAC = CreateObject^("Shell.Application"^) > "%temp%\getadmin.vbs"
set params = %*:"="
echo UAC.ShellExecute "cmd.exe", "/c %~s0 %params%", "", "runas", 1 >> "%temp%\getadmin.vbs"
"%temp%\getadmin.vbs"
del "%temp%\getadmin.vbs"
exit /B
:gotAdmin
pushd "%CD%"
CD /D "%~dp0"
:--------------------------------------
:LOOP
SET Choice=
SET /P Choice="Do you want to modify HOSTS file ? (Y/N)"
IF NOT '%Choice%'=='' SET Choice=%Choice:~0,1%
ECHO.
IF /I '%Choice%'=='Y' GOTO ACCEPTED
IF /I '%Choice%'=='N' GOTO REJECTED
ECHO Please type Y (for Yes) or N (for No) to proceed!
ECHO.
GOTO Loop
:REJECTED
ECHO Your HOSTS file was left unchanged.
ECHO Finished.
GOTO END
:ACCEPTED
setlocal enabledelayedexpansion
::Create your list of host domains
for /F "tokens=1,2 delims= " %%A in (%WINDIR%\System32\drivers\etc\storedhosts.txt) do (
SET _host=%%B
SET _ip=%%A
SET NEWLINE=^& echo.
ECHO Adding !_ip! !_host!
REM REM ::strip out this specific line and store in tmp file
type %WINDIR%\System32\drivers\etc\hosts | findstr /v !_host! > tmp.txt
REM REM ::re-add the line to it
ECHO %NEWLINE%^!_ip! !_host! >> tmp.txt
REM ::overwrite host file
copy /b/v/y tmp.txt %WINDIR%\System32\drivers\etc\hosts
del tmp.txt
)
ipconfig /flushdns
ECHO.
ECHO.
ECHO Finished, you may close this window now.
GOTO END
:END
ECHO.
PAUSE
EXIT
Example "storedhosts.txt" (tab delimited)
127.0.0.1 mysite.com
168.1.64.2 yoursite.com
192.1.0.1 internalsite.com
IF you are using Gradle you can use the build.gradle file to programmatically add value to the xml resources at compile time.
Example Code extracted from: https://medium.com/@manas/manage-your-android-app-s-versioncode-versionname-with-gradle-7f9c5dcf09bf
buildTypes {
debug {
versionNameSuffix ".debug"
resValue "string", "app_version", "${defaultConfig.versionName}${versionNameSuffix}"
}
release {
resValue "string", "app_version", "${defaultConfig.versionName}"
}
}
now use @string/app_version
as needed in XML
It will add .debug
to the version name as describe in the linked article when in debug mode.
Cannot comment anymore but voted it up and wanted to let folks know that "
works very well for the xml config files when forming regex expressions for RegexTransformer in Solr like so: regex=".*img src="(.*)".*"
using the escaped version instead of double-quotes.
A simple but relatively insecure way would be to use the --net=host
option to docker run
.
This option makes it so that the container uses the networking stack of the host. Then you can connect to services running on the host simply by using "localhost" as the hostname.
This is easier to configure because you won't have to configure the service to accept connections from the IP address of your docker container, and you won't have to tell the docker container a specific IP address or host name to connect to, just a port.
For example, you can test it out by running the following command, which assumes your image is called my_image
, your image includes the telnet
utility, and the service you want to connect to is on port 25:
docker run --rm -i -t --net=host my_image telnet localhost 25
If you consider doing it this way, please see the caution about security on this page:
https://docs.docker.com/articles/networking/
It says:
--net=host -- Tells Docker to skip placing the container inside of a separate network stack. In essence, this choice tells Docker to not containerize the container's networking! While container processes will still be confined to their own filesystem and process list and resource limits, a quick ip addr command will show you that, network-wise, they live “outside” in the main Docker host and have full access to its network interfaces. Note that this does not let the container reconfigure the host network stack — that would require --privileged=true — but it does let container processes open low-numbered ports like any other root process. It also allows the container to access local network services like D-bus. This can lead to processes in the container being able to do unexpected things like restart your computer. You should use this option with caution.
There are a few issues in your code
<div [formGroup]="form">
outside of a <form>
tag<form [formGroup]="form">
but the name of the property containing the FormGroup
is loginForm
therefore it should be <form [formGroup]="loginForm">
[formControlName]="dob"
which passes the value of the property dob
which doesn't exist. What you need is to pass the string dob
like [formControlName]="'dob'"
or simpler formControlName="dob"
Jeff Atwood has a recent blog post about this: The Great Newline Schism
Here is the essence from Wikipedia:
The sequence CR+LF was in common use on many early computer systems that had adopted teletype machines, typically an ASR33, as a console device, because this sequence was required to position those printers at the start of a new line. On these systems, text was often routinely composed to be compatible with these printers, since the concept of device drivers hiding such hardware details from the application was not yet well developed; applications had to talk directly to the teletype machine and follow its conventions. The separation of the two functions concealed the fact that the print head could not return from the far right to the beginning of the next line in one-character time. That is why the sequence was always sent with the CR first. In fact, it was often necessary to send extra characters (extraneous CRs or NULs, which are ignored) to give the print head time to move to the left margin. Even after teletypes were replaced by computer terminals with higher baud rates, many operating systems still supported automatic sending of these fill characters, for compatibility with cheaper terminals that required multiple character times to scroll the display.
You can upload documents to SharePoint libraries using the Object Model or SharePoint Webservices.
Upload using Object Model:
String fileToUpload = @"C:\YourFile.txt";
String sharePointSite = "http://yoursite.com/sites/Research/";
String documentLibraryName = "Shared Documents";
using (SPSite oSite = new SPSite(sharePointSite))
{
using (SPWeb oWeb = oSite.OpenWeb())
{
if (!System.IO.File.Exists(fileToUpload))
throw new FileNotFoundException("File not found.", fileToUpload);
SPFolder myLibrary = oWeb.Folders[documentLibraryName];
// Prepare to upload
Boolean replaceExistingFiles = true;
String fileName = System.IO.Path.GetFileName(fileToUpload);
FileStream fileStream = File.OpenRead(fileToUpload);
// Upload document
SPFile spfile = myLibrary.Files.Add(fileName, fileStream, replaceExistingFiles);
// Commit
myLibrary.Update();
}
}
cd /usr/local
git status
git status
til it's cleanbrew update
Here is another solution I wrote in C# to auto startup native node server or pm2 server on Windows.
You can use this
whereDate('date', '=', $date)
If you give whereDate then compare only date from datetime field.
No, how you are doing it is correct.
http://www.w3.org/MarkUp/html-spec/html-spec_8.html#SEC8.2.2
You can often get information from the header files. For example:
$ cd /Applications/Xcode.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX10.9.sdk
$ find usr -name \*.h -exec fgrep -l EXC_I386_GPFLT {} \;
usr/include/mach/i386/exception.h
^C
$ more usr/include/mach/i386/exception.h
....
#define EXC_I386_GPFLT 13 /* general protection fault */
OK, so it's a general protection fault (as its name suggests anyway). Googling "i386 general protection fault" yields many hits, but this looks interesting:
Memory protection is also implemented using the segment descriptors. First, the processor checks whether a value loaded in a segment register references a valid descriptor. Then it checks that every linear address calculated actually lies within the segment. Also, the type of access (read, write, or execute) is checked against the information in the segment descriptor. Whenever one of these checks fails, exception (interrupt) 13 (hex 0D) is raised. This exception is called a General Protection Fault (GPF).
That 13
matches what we saw in the header files, so it looks like the same thing. However from the application programmer's point-of-view, it just means we're referencing memory we shouldn't be, and it's doesn't really matter how it's implemented on the hardware.
I have been reading about using model concerns to skin-nize fat models as well as DRY up your model codes. Here is an explanation with examples:
Consider a Article model, a Event model and a Comment model. An article or an event has many comments. A comment belongs to either Article or Event.
Traditionally, the models may look like this:
Comment Model:
class Comment < ActiveRecord::Base
belongs_to :commentable, polymorphic: true
end
Article Model:
class Article < ActiveRecord::Base
has_many :comments, as: :commentable
def find_first_comment
comments.first(created_at DESC)
end
def self.least_commented
#return the article with least number of comments
end
end
Event Model
class Event < ActiveRecord::Base
has_many :comments, as: :commentable
def find_first_comment
comments.first(created_at DESC)
end
def self.least_commented
#returns the event with least number of comments
end
end
As we can notice, there is a significant piece of code common to both Event and Article. Using concerns we can extract this common code in a separate module Commentable.
For this create a commentable.rb file in app/models/concerns.
module Commentable
extend ActiveSupport::Concern
included do
has_many :comments, as: :commentable
end
# for the given article/event returns the first comment
def find_first_comment
comments.first(created_at DESC)
end
module ClassMethods
def least_commented
#returns the article/event which has the least number of comments
end
end
end
And now your models look like this :
Comment Model:
class Comment < ActiveRecord::Base
belongs_to :commentable, polymorphic: true
end
Article Model:
class Article < ActiveRecord::Base
include Commentable
end
Event Model:
class Event < ActiveRecord::Base
include Commentable
end
Consider a Event model. A event has many attenders and comments.
Typically, the event model might look like this
class Event < ActiveRecord::Base
has_many :comments
has_many :attenders
def find_first_comment
# for the given article/event returns the first comment
end
def find_comments_with_word(word)
# for the given event returns an array of comments which contain the given word
end
def self.least_commented
# finds the event which has the least number of comments
end
def self.most_attended
# returns the event with most number of attendes
end
def has_attendee(attendee_id)
# returns true if the event has the mentioned attendee
end
end
Models with many associations and otherwise have tendency to accumulate more and more code and become unmanageable. Concerns provide a way to skin-nize fat modules making them more modularized and easy to understand.
The above model can be refactored using concerns as below:
Create a attendable.rb
and commentable.rb
file in app/models/concerns/event folder
attendable.rb
module Attendable
extend ActiveSupport::Concern
included do
has_many :attenders
end
def has_attender(attender_id)
# returns true if the event has the mentioned attendee
end
module ClassMethods
def most_attended
# returns the event with most number of attendes
end
end
end
commentable.rb
module Commentable
extend ActiveSupport::Concern
included do
has_many :comments
end
def find_first_comment
# for the given article/event returns the first comment
end
def find_comments_with_word(word)
# for the given event returns an array of comments which contain the given word
end
module ClassMethods
def least_commented
# finds the event which has the least number of comments
end
end
end
And now using Concerns, your Event model reduces to
class Event < ActiveRecord::Base
include Commentable
include Attendable
end
* While using concerns its advisable to go for 'domain' based grouping rather than 'technical' grouping. Domain Based grouping is like 'Commentable', 'Photoable', 'Attendable'. Technical grouping will mean 'ValidationMethods', 'FinderMethods' etc
Use:
SELECT *
FROM YOUR_TABLE
WHERE creation_date <= TRUNC(SYSDATE) - 30
SYSDATE returns the date & time; TRUNC resets the date to being as of midnight so you can omit it if you want the creation_date
that is 30 days previous including the current time.
Depending on your needs, you could also look at using ADD_MONTHS:
SELECT *
FROM YOUR_TABLE
WHERE creation_date <= ADD_MONTHS(TRUNC(SYSDATE), -1)
To fix the indentation and formatting in all files of your solution:
2
);This will recursively open and save all files in your solution, setting the indentation you defined above.
You might want to check other programming languages tabs (Options...) for Code Style > Formatting as well.