Below is a working code to add a fragment e.g 3 times to a vertical LinearLayout (xNumberLinear). You can change number 3 with any other number or take a number from a spinner!
for (int i = 0; i < 3; i++) {
LinearLayout linearDummy = new LinearLayout(getActivity());
linearDummy.setOrientation(LinearLayout.VERTICAL);
if (Build.VERSION.SDK_INT < Build.VERSION_CODES.JELLY_BEAN_MR1) {
Toast.makeText(getActivity(), "This function works on newer versions of android", Toast.LENGTH_LONG).show();
} else {
linearDummy.setId(View.generateViewId());
}
fragmentManager.beginTransaction().add(linearDummy.getId(), new SomeFragment(),"someTag1").commit();
xNumberLinear.addView(linearDummy);
}
$('#thisElement').find('.classToSelect')
will find any descendents of #thisElement
with class classToSelect
.
//form/descendant::input[@type='submit']
As we see from the javaDoc, BigInteger
is not a subclass of Integer
:
java.lang.Object java.lang.Object
java.lang.Number java.lang.Number
java.math.BigInteger java.lang.Integer
And that's the reason why casting from BigInteger
to Integer
is impossible.
Casting of java primitives will do some conversion (like casting from double
to int
) while casting of types will never transform classes.
Try writting the lambda with the same conditions as the delegate. like this:
List<AnalysisObject> analysisObjects =
analysisObjectRepository.FindAll().Where(
(x =>
(x.ID == packageId)
|| (x.Parent != null && x.Parent.ID == packageId)
|| (x.Parent != null && x.Parent.Parent != null && x.Parent.Parent.ID == packageId)
).ToList();
You can do it without modifying the XML stream: Tell the XmlReader to not be so picky.
Setting the XmlReaderSettings.ConformanceLevel
to ConformanceLevel.Fragment
will let the parser ignore the fact that there is no root node.
XmlReaderSettings settings = new XmlReaderSettings();
settings.ConformanceLevel = ConformanceLevel.Fragment;
using (XmlReader reader = XmlReader.Create(tr,settings))
{
...
}
Now you can parse something like this (which is an real time XML stream, where it is impossible to wrap with a node).
<event>
<timeStamp>1354902435238</timeStamp>
<eventId>7073822</eventId>
</event>
<data>
<time>1354902435341</time>
<payload type='80'>7d1300786a0000000bf9458b0518000000000000000000000000000000000c0c030306001b</payload>
</data>
<data>
<time>1354902435345</time>
<payload type='80'>fd1260780912ff3028fea5ffc0387d640fa550f40fbdf7afffe001fff8200fff00f0bf0e000042201421100224ff40312300111400004f000000e0c0fbd1e0000f10e0fccc2ff0000f0fe00f00f0eed00f11e10d010021420401</payload>
</data>
<data>
<time>1354902435347</time>
<payload type='80'>fd126078ad11fc4015fefdf5b042ff1010223500000000000000003007ff00f20e0f01000e0000dc0f01000f000000000000004f000000f104ff001000210f000013010000c6da000000680ffa807800200000000d00c0f0</payload>
</data>
This design was not mentioned yet:
Though it has limitations, if you can bear them, it's very simple and very efficient. Features:
Here follows an example - taxonomic tree of birds so the hierarchy is Class/Order/Family/Genus/Species - species is the lowest level, 1 row = 1 taxon (which corresponds to species in the case of the leaf nodes):
CREATE TABLE `taxons` (
`TaxonId` smallint(6) NOT NULL default '0',
`ClassId` smallint(6) default NULL,
`OrderId` smallint(6) default NULL,
`FamilyId` smallint(6) default NULL,
`GenusId` smallint(6) default NULL,
`Name` varchar(150) NOT NULL default ''
);
and the example of the data:
+---------+---------+---------+----------+---------+-------------------------------+
| TaxonId | ClassId | OrderId | FamilyId | GenusId | Name |
+---------+---------+---------+----------+---------+-------------------------------+
| 254 | 0 | 0 | 0 | 0 | Aves |
| 255 | 254 | 0 | 0 | 0 | Gaviiformes |
| 256 | 254 | 255 | 0 | 0 | Gaviidae |
| 257 | 254 | 255 | 256 | 0 | Gavia |
| 258 | 254 | 255 | 256 | 257 | Gavia stellata |
| 259 | 254 | 255 | 256 | 257 | Gavia arctica |
| 260 | 254 | 255 | 256 | 257 | Gavia immer |
| 261 | 254 | 255 | 256 | 257 | Gavia adamsii |
| 262 | 254 | 0 | 0 | 0 | Podicipediformes |
| 263 | 254 | 262 | 0 | 0 | Podicipedidae |
| 264 | 254 | 262 | 263 | 0 | Tachybaptus |
This is great because this way you accomplish all the needed operations in a very easy way, as long as the internal categories don't change their level in the tree.
Thank you all for your contribution! I found the problem:
ITS A FIREBUG BUG !!!
My code works. I have asked the PHP Dev to change the input types hidden in to input type text. The disabled feature works. But the firebug console does not update this status!
you can test out this firebug bug by your self here http://jsbin.com/uneti3/3#. Thx to aSeptik for the example page.
update: 2. June 2012: Firebug in FF11 still has this bug.
Running the risk of getting another Necromancer badge, I would like to add one very good use for uintptr_t (or even intptr_t) and that is writing testable embedded code. I write mostly embedded code targeted at various arm and currently tensilica processors. These have various native bus width and the tensilica is actually a Harvard architecture with separate code and data buses that can be different widths. I use a test driven development style for much of my code which means I do unit tests for all the code units I write. Unit testing on actual target hardware is a hassle so I typically write everything on an Intel based PC either in Windows or Linux using Ceedling and GCC. That being said, a lot of embedded code involves bit twiddling and address manipulations. Most of my Intel machines are 64 bit. So if you are going to test address manipulation code you need a generalized object to do math on. Thus the uintptr_t give you a machine independent way of debugging your code before you try deploying to target hardware. Another issue is for the some machines or even memory models on some compilers, function pointers and data pointers are different widths. On those machines the compiler may not even allow casting between the two classes, but uintptr_t should be able to hold either. -- Edit -- Was pointed out by @chux, this is not part of the standard and functions are not objects in C. However it usually works and since many people don't even know about these types I usually leave a comment explaining the trickery. Other searches in SO on uintptr_t will provide further explanation. Also we do things in unit testing that we would never do in production because breaking things is good.
Large objects are allocated on LOH (large object heap), not on gen 0. If you're saying that they don't get garbage-collected with gen 0, you're right. I believe they are collected only when the full GC cycle (generations 0, 1 and 2) happens.
That being said, I believe on the other side GC will adjust and collect memory more aggressively when you work with large objects and the memory pressure is going up.
It is hard to say whether to collect or not and in which circumstances. I used to do GC.Collect() after disposing of dialog windows/forms with numerous controls etc. (because by the time the form and its controls end up in gen 2 due to creating many instances of business objects/loading much data - no large objects obviously), but actually didn't notice any positive or negative effects in the long term by doing so.
The most clean and modern way to use singletons in Android is just to use the Dependency Injection framework called Dagger 2. Here you have an explanation of possible scopes you can use. Singleton is one of these scopes. Dependency Injection is not that easy but you shall invest a bit of your time to understand it. It also makes testing easier.
Now you can use the Shared Project
Shared Project is a great way of sharing common code across multiple application We already have experienced with the Shared Project type in Visual Studio 2013 as part of Windows 8.1 Universal App Development, But with Visual Studio 2015, it is a Standalone New Project Template; and we can use it with other types of app like Console, Desktop, Phone, Store App etc.. This types of project is extremely helpful when we want to share a common code, logic as well as components across multiple applications with in single platform. This also allows accessing the platform-specific API ’s, assets etc.
for more info check this
The expression len(l)
is evaluated only one time, at the moment the range()
builtin is evaluated. The range object constructed at that time does not change; it can't possibly know anything about the object l
.
P.S. l
is a lousy name for a value! It looks like the numeral 1, or the capital letter I.
I wrote an article on this subject over here. I think it could help you.
Typically it's doing something like that:
static void Main(string[] args)
{
// Convert from a DataTable source to an IEnumerable.
var usersSourceDataTable = CreateMockUserDataTable();
var usersConvertedList = usersSourceDataTable.ToEnumerable<User>();
// Convert from an IEnumerable source to a DataTable.
var usersSourceList = CreateMockUserList();
var usersConvertedDataTable = usersSourceList.ToDataTable<User>();
}
I've also found it useful to access object attributes where the attribute names vary by some iterator. For example, I have used the pattern below for a set of time periods: hour, day, month.
$periods=array('hour', 'day', 'month');
foreach ($periods as $period)
{
$this->{'value_'.$period}=1;
}
This same pattern can also be used to access class methods. Just build up the method name in the same manner, using strings and string variables.
You could easily argue to just use an array for the value storage by period. If this application were PHP only, I would agree. I use this pattern when the class attributes map to fields in a database table. While it is possible to store arrays in a database using serialization, it is inefficient, and pointless if the individual fields must be indexed. I often add an array of the field names, keyed by the iterator, for the best of both worlds.
class timevalues
{
// Database table values:
public $value_hour; // maps to values.value_hour
public $value_day; // maps to values.value_day
public $value_month; // maps to values.value_month
public $values=array();
public function __construct()
{
$this->value_hour=0;
$this->value_day=0;
$this->value_month=0;
$this->values=array(
'hour'=>$this->value_hour,
'day'=>$this->value_day,
'month'=>$this->value_month,
);
}
}
You'd better not to count the filesystem hits while you code in Javascript, in my opinion.
However, (1) stat
& mkdir
and (2) mkdir
and check(or discard) the error code, both ways are right ways to do what you want.
Port Access
Firewalls and other security tools may prevent RabbitMQ from binding to a port. When that happens, RabbitMQ will fail to start. Make sure the following ports can be opened:
4369: epmd, a peer discovery service used by RabbitMQ nodes and CLI tools
5672, 5671: used by AMQP 0-9-1 and 1.0 clients without and with TLS
25672: used by Erlang distribution for inter-node and CLI tools communication and is allocated from a dynamic range (limited to a single port by default, computed as AMQP port + 20000). See networking guide for details.
15672: HTTP API clients and rabbitmqadmin (only if the management plugin is enabled)
61613, 61614: STOMP clients without and with TLS (only if the STOMP plugin is enabled)
1883, 8883: (MQTT clients without and with TLS, if the MQTT plugin is enabled
15674: STOMP-over-WebSockets clients (only if the Web STOMP plugin is enabled)
15675: MQTT-over-WebSockets clients (only if the Web MQTT plugin is enabled)
Reference doc: https://www.rabbitmq.com/install-windows-manual.html
This happens to me when I'm using Jinja2 for templates. The problem can be solved by running the development server using the runserver_plus
command from django_extensions.
It uses the werkzeug debugger which also happens to be a lot better and has a very nice interactive debugging console. It does some ajax magic to launch a python shell at any frame (in the call stack) so you can debug.
You can't call "printf" with a std::string in parameter. The "%s" is designed for C-style string : char* or char []. In C++ you can do like that :
#include <iostream>
std::cout << YourString << std::endl;
If you absolutely want to use printf, you can use the "c_str()" method that give a char* representation of your string.
printf("%s\n",YourString.c_str())
You are using str
methods on an open file object.
You can read the file as a list of lines by simply calling list()
on the file object:
with open('goodlines.txt') as f:
mylist = list(f)
This does include the newline characters. You can strip those in a list comprehension:
with open('goodlines.txt') as f:
mylist = [line.rstrip('\n') for line in f]
I just tried out your build.gradle
and it worked fine for me to import GMS, so that's not the issue.
This was with Google Play services (rev 13)
and Google Repository (rev 4)
. Check out those are installed one more time :)
With the new ES6 spread operator, joining two arrays using push
becomes even easier:
var arr = [1, 2, 3, 4, 5];_x000D_
var arr2 = [6, 7, 8, 9, 10];_x000D_
arr.push(...arr2);_x000D_
console.log(arr);
_x000D_
This adds the contents of arr2
onto the end of arr
.
Here´s an alternative with AJAX but no jQuery, just regular JavaScript:
Add this to first/main php page, where you want to call the action from, but change it from a potential a
tag (hyperlink) to a button
element, so it does not get clicked by any bots or malicious apps (or whatever).
<head>
<script>
// function invoking ajax with pure javascript, no jquery required.
function myFunction(value_myfunction) {
var xmlhttp = new XMLHttpRequest();
xmlhttp.onreadystatechange = function() {
if (this.readyState == 4 && this.status == 200) {
document.getElementById("results").innerHTML += this.responseText;
// note '+=', adds result to the existing paragraph, remove the '+' to replace.
}
};
xmlhttp.open("GET", "ajax-php-page.php?sendValue=" + value_myfunction, true);
xmlhttp.send();
}
</script>
</head>
<body>
<?php $sendingValue = "thevalue"; // value to send to ajax php page. ?>
<!-- using button instead of hyperlink (a) -->
<button type="button" onclick="value_myfunction('<?php echo $sendingValue; ?>');">Click to send value</button>
<h4>Responses from ajax-php-page.php:</h4>
<p id="results"></p> <!-- the ajax javascript enters returned GET values here -->
</body>
When the button
is clicked, onclick
uses the the head´s javascript function to send $sendingValue
via ajax to another php-page, like many examples before this one. The other page, ajax-php-page.php
, checks for the GET value and returns with print_r
:
<?php
$incoming = $_GET['sendValue'];
if( isset( $incoming ) ) {
print_r("ajax-php-page.php recieved this: " . "$incoming" . "<br>");
} else {
print_r("The request didn´t pass correctly through the GET...");
}
?>
The response from print_r
is then returned and displayed with
document.getElementById("results").innerHTML += this.responseText;
The +=
populates and adds to existing html elements, removing the +
just updates and replaces the existing contents of the html p
element "results"
.
Your code is working fine using bootatrap v3.3.7, but you can use
word-break: break-word
if it's not working at your end.
which would then look like this -
<html>_x000D_
_x000D_
<head>_x000D_
<link rel="stylesheet" href="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.7/css/bootstrap.min.css"_x000D_
integrity="sha384-BVYiiSIFeK1dGmJRAkycuHAHRg32OmUcww7on3RYdg4Va+PmSTsz/K68vbdEjh4u" crossorigin="anonymous">_x000D_
</head>_x000D_
_x000D_
<body>_x000D_
<div class="row" style="box-shadow: 0 0 30px black;">_x000D_
<div class="col-6 col-sm-6 col-lg-4">_x000D_
<h3 style="word-break: break-word;">2005 Volkswagen Jetta 2.5 Sedan (worcester http://www.massmotorcars.com)_x000D_
$6900</h3>_x000D_
<p>_x000D_
<small>2005 volkswagen jetta 2.5 for sale has 110,000 miles powere doors,power windows,has ,car drives_x000D_
excellent ,comes with warranty if you're ...</small>_x000D_
</p>_x000D_
<p>_x000D_
<a class="btn btn-default" href="/search/1355/detail/" role="button">View details »</a>_x000D_
<button type="button" class="btn bookmark" id="1355">_x000D_
<span class="_x000D_
glyphicon glyphicon-star-empty "></span>_x000D_
</button>_x000D_
</p>_x000D_
</div>_x000D_
<!--/span-->_x000D_
<div class="col-6 col-sm-6 col-lg-4">_x000D_
<h3 style="word-break: break-word;">2006 Honda Civic EX Sedan (Worcester www.massmotorcars.com) $7950</h3>_x000D_
<p>_x000D_
<small>2006 honda civic ex has 110,176 miles, has power doors ,power windows,sun roof,alloy wheels,runs_x000D_
great, cd player, 4 cylinder engen, ...</small>_x000D_
</p>_x000D_
<p>_x000D_
<a class="btn btn-default" href="/search/1356/detail/" role="button">View details »</a>_x000D_
<button type="button" class="btn bookmark" id="1356">_x000D_
<span class="_x000D_
glyphicon glyphicon-star-empty "></span>_x000D_
</button>_x000D_
</p>_x000D_
_x000D_
</div>_x000D_
<!--/span-->_x000D_
<div class="col-6 col-sm-6 col-lg-4">_x000D_
<h3 style="word-break: break-word;">2004 Honda Civic LX Sedan (worcester www.massmotorcars.com) $5900</h3>_x000D_
<p>_x000D_
<small>2004 honda civic lx sedan has 134,000 miles, great looking car, interior and exterior looks_x000D_
nice,has_x000D_
cd player, power windows ...</small>_x000D_
</p>_x000D_
<p>_x000D_
<a class="btn btn-default" href="/search/1357/detail/" role="button">View details »</a>_x000D_
<button type="button" class="btn bookmark" id="1357">_x000D_
<span class="_x000D_
glyphicon glyphicon-star-empty "></span>_x000D_
</button>_x000D_
</p>_x000D_
</div>_x000D_
</div>_x000D_
</body>_x000D_
_x000D_
</html>
_x000D_
If you can use a Database project in Visual Studio, you can make your changes in the project and use schema compare to synchronize the changes to your database.
This way, dropping and recreating the dependent objects is handled by the change script.
Welcome to 2019!
It appears a proposal to extend class syntax to allow for #
prefixed variable to be private was accepted. Chrome 74 ships with this support.
_
prefixed variable names are considered private by convention but are still public.
This syntax tries to be both terse and intuitive, although it's rather different from other programming languages.
Why was the sigil # chosen, among all the Unicode code points?
- @ was the initial favorite, but it was taken by decorators. TC39 considered swapping decorators and private state sigils, but the committee decided to defer to the existing usage of transpiler users.
- _ would cause compatibility issues with existing JavaScript code, which has allowed _ at the start of an identifier or (public) property name for a long time.
This proposal reached Stage 3 in July 2017. Since that time, there has been extensive thought and lengthy discussion about various alternatives. In the end, this thought process and continued community engagement led to renewed consensus on the proposal in this repository. Based on that consensus, implementations are moving forward on this proposal.
See https://caniuse.com/#feat=mdn-javascript_classes_private_class_fields
Can you use boost?
samm$ cat split.cc
#include <boost/algorithm/string/classification.hpp>
#include <boost/algorithm/string/split.hpp>
#include <boost/foreach.hpp>
#include <iostream>
#include <string>
#include <vector>
int
main()
{
std::string split_me( "hello world how are you" );
typedef std::vector<std::string> Tokens;
Tokens tokens;
boost::split( tokens, split_me, boost::is_any_of(" ") );
std::cout << tokens.size() << " tokens" << std::endl;
BOOST_FOREACH( const std::string& i, tokens ) {
std::cout << "'" << i << "'" << std::endl;
}
}
sample execution:
samm$ ./a.out
8 tokens
'hello'
'world'
''
'how'
'are'
''
''
'you'
samm$
The above - findByBookIdRegion() did not work for me. The following works with the latest release of String Data JPA:
Page<QueuedBook> findByBookId_Region(Region region, Pageable pageable);
The LIMIT clause can be used to constrain the number of rows returned by the SELECT statement. LIMIT takes one or two numeric arguments, which must both be nonnegative integer constants (except when using prepared statements).
With two arguments, the first argument specifies the offset of the first row to return, and the second specifies the maximum number of rows to return. The offset of the initial row is 0 (not 1):
SELECT * FROM tbl LIMIT 5,10; # Retrieve rows 6-15
To retrieve all rows from a certain offset up to the end of the result set, you can use some large number for the second parameter. This statement retrieves all rows from the 96th row to the last:
SELECT * FROM tbl LIMIT 95,18446744073709551615;
With one argument, the value specifies the number of rows to return from the beginning of the result set:
SELECT * FROM tbl LIMIT 5; # Retrieve first 5 rows
In other words, LIMIT row_count is equivalent to LIMIT 0, row_count.
The problem has been resolved by running the following in elevated command prompt:
command :
cd C:\Windows\System32\
regtlib msdatsrc.tlb
or
cd C:\Windows\SysWOW64\
regtlib msdatsrc.tlb
I hope this helps.
Normal money conversions will preserve individual pennies:
SELECT convert(varchar(30), moneyfield, 1)
The last parameter decides what the output format looks like:
0 (default) No commas every three digits to the left of the decimal point, and two digits to the right of the decimal point; for example, 4235.98.
1 Commas every three digits to the left of the decimal point, and two digits to the right of the decimal point; for example, 3,510.92.
2 No commas every three digits to the left of the decimal point, and four digits to the right of the decimal point; for example, 4235.9819.
If you want to truncate the pennies, and count in pounds, you can use rounding to the nearest pound, floor to the lowest whole pound, or ceiling to round up the pounds:
SELECT convert(int, round(moneyfield, 0))
SELECT convert(int, floor(moneyfield))
SELECT convert(int, ceiling(moneyfield))
Use this code
Environment.Exit(0);
use 0 as the int if you don't want to return anything.
If you want to replace NAs in factor variables, this might be useful:
n <- length(levels(data.vector))+1
data.vector <- as.numeric(data.vector)
data.vector[is.na(data.vector)] <- n
data.vector <- as.factor(data.vector)
levels(data.vector) <- c("level1","level2",...,"leveln", "NAlevel")
It transforms a factor-vector into a numeric vector and adds another artifical numeric factor level, which is then transformed back to a factor-vector with one extra "NA-level" of your choice.
When I look at this description, I have a feeling, that this xdr integer is just a big-endian "standard" integer, but it's expressed in the most obfuscated way. Two's complement notation is better know as U2, and it's what we are using on today's processors. The byte order indicates that it's a big-endian notation.
So, answering your question, you should inverse elements in your array (0 <--> 3, 1 <-->2), as they are encoded in little-endian. Just to make sure, you should first check BitConverter.IsLittleEndian
to see on what machine you are running.
The solution no one tells is that in Mysql v5.5 and later InnoDB is the default storage engine which does not have this problem but in many cases like mine there are some old mysql ini configuration files which are using old MYISAM storage engine like below.
default-storage-engine=MYISAM
which is creating all these problems and the solution is to change default-storage-engine to InnoDB in the Mysql's ini configuration file once and for all instead of doing temporary hacks.
default-storage-engine=InnoDB
And if you are on MySql v5.5 or later then InnoDB is the default engine so you do not need to set it explicitly like above, just remove the default-storage-engine=MYISAM
if it exist from your ini
file and you are good to go.
Depending on your platform, I just opt to use the linux shell file
command. This works for me since I am using it in a script that exclusively runs on one of our linux machines.
Obviously this isn't an ideal solution or answer, but it could be modified to fit your needs. In my case I just need to determine whether a file is UTF-8 or not.
import subprocess
file_cmd = ['file', 'test.txt']
p = subprocess.Popen(file_cmd, stdout=subprocess.PIPE)
cmd_output = p.stdout.readlines()
# x will begin with the file type output as is observed using 'file' command
x = cmd_output[0].split(": ")[1]
return x.startswith('UTF-8')
You cannot play a video inside a view. It has to be played fullscreen.
I have solved it on wordpress template:
$videoLink ="http://www.youtube.com/watch?v=yRuVYkA8i1o;".
<?php
parse_str( parse_url( $videoLink, PHP_URL_QUERY ), $my_array_of_vars );
$youtube_ID = $my_array_of_vars['v'];
?>
<a class="video" data-toggle="modal" data-target="#myModal" rel="<?php echo $youtube_ID;?>">
<img src="<?php bloginfo('template_url');?>/assets/img/play.png" />
</a>
<div class="modal fade video-lightbox" id="myModal" tabindex="-1" role="dialog" aria-labelledby="myModalLabel" aria-hidden="true">
<div class="modal-dialog">
<div class="modal-content">
<div class="modal-header">
<button type="button" class="close" data-dismiss="modal" aria-hidden="true">×</button>
</div>
<div class="modal-body"></div>
</div><!-- /.modal-content -->
</div><!-- /.modal-dialog -->
</div><!-- /.modal -->
<script>
jQuery(document).ready(function ($) {
var $midlayer = $('.modal-body');
$('#myModal').on('show.bs.modal', function (e) {
var $video = $('a.video');
var vid = $video.attr('rel');
var iframe = '<iframe />';
var url = "//youtube.com/embed/"+vid+"?autoplay=1&autohide=1&modestbranding=1&rel=0&hd=1";
var width_f = '100%';
var height_f = 400;
var frameborder = 0;
jQuery(iframe, {
name: 'videoframe',
id: 'videoframe',
src: url,
width: width_f,
height: height_f,
frameborder: 0,
class: 'youtube-player',
type: 'text/html',
allowfullscreen: true
}).appendTo($midlayer);
});
$('#myModal').on('hide.bs.modal', function (e) {
$('div.modal-body').html('');
});
});
</script>
just building on what Chetabahana wrote, I found that adding a short delay to the JS function helped on a site I was working on. It meant that the function kicked in after the iframe loaded. You can play around with the delay.
var delayInMilliseconds = 500; // half a second
setTimeout(function() {
var iframe = document.getElementsByTagName('iframe')[0];
iframe.style.background = 'white';
iframe.contentWindow.document.body.style.backgroundColor = 'white';
}, delayInMilliseconds);
I hope this helps!
Though it is perfectly possible to use a recursive regex as MizardX has posted, for this kind of things it is much more useful a parser. Regexes were originally intended to be used with regular languages, being recursive or having balancing groups is just a patch.
The language that defines valid regexes is actually a context free grammar, and you should use an appropriate parser for handling it. Here is an example for a university project for parsing simple regexes (without most constructs). It uses JavaCC. And yes, comments are in Spanish, though method names are pretty self-explanatory.
SKIP :
{
" "
| "\r"
| "\t"
| "\n"
}
TOKEN :
{
< DIGITO: ["0" - "9"] >
| < MAYUSCULA: ["A" - "Z"] >
| < MINUSCULA: ["a" - "z"] >
| < LAMBDA: "LAMBDA" >
| < VACIO: "VACIO" >
}
IRegularExpression Expression() :
{
IRegularExpression r;
}
{
r=Alternation() { return r; }
}
// Matchea disyunciones: ER | ER
IRegularExpression Alternation() :
{
IRegularExpression r1 = null, r2 = null;
}
{
r1=Concatenation() ( "|" r2=Alternation() )?
{
if (r2 == null) {
return r1;
} else {
return createAlternation(r1,r2);
}
}
}
// Matchea concatenaciones: ER.ER
IRegularExpression Concatenation() :
{
IRegularExpression r1 = null, r2 = null;
}
{
r1=Repetition() ( "." r2=Repetition() { r1 = createConcatenation(r1,r2); } )*
{ return r1; }
}
// Matchea repeticiones: ER*
IRegularExpression Repetition() :
{
IRegularExpression r;
}
{
r=Atom() ( "*" { r = createRepetition(r); } )*
{ return r; }
}
// Matchea regex atomicas: (ER), Terminal, Vacio, Lambda
IRegularExpression Atom() :
{
String t;
IRegularExpression r;
}
{
( "(" r=Expression() ")" {return r;})
| t=Terminal() { return createTerminal(t); }
| <LAMBDA> { return createLambda(); }
| <VACIO> { return createEmpty(); }
}
// Matchea un terminal (digito o minuscula) y devuelve su valor
String Terminal() :
{
Token t;
}
{
( t=<DIGITO> | t=<MINUSCULA> ) { return t.image; }
}
You're the victim of the classic deadlock. task.Wait()
or task.Result
is a blocking call in UI thread which causes the deadlock.
Don't block in the UI thread. Never do it. Just await it.
private async void Button_Click(object sender, RoutedEventArgs
{
var task = GetResponseAsync<MyObject>("my url");
var items = await task;
}
Btw, why are you catching the WebException
and throwing it back? It would be better if you simply don't catch it. Both are same.
Also I can see you're mixing the asynchronous code with synchronous code inside the GetResponse
method. StreamReader.ReadToEnd
is a blocking call --you should be using StreamReader.ReadToEndAsync
.
Also use "Async" suffix to methods which returns a Task or asynchronous to follow the TAP("Task based Asynchronous Pattern") convention as Jon says.
Your method should look something like the following when you've addressed all the above concerns.
public static async Task<List<T>> GetResponseAsync<T>(string url)
{
HttpWebRequest request = (HttpWebRequest)HttpWebRequest.Create(url);
var response = (HttpWebResponse)await Task.Factory.FromAsync<WebResponse>(request.BeginGetResponse, request.EndGetResponse, null);
Stream stream = response.GetResponseStream();
StreamReader strReader = new StreamReader(stream);
string text = await strReader.ReadToEndAsync();
return JsonConvert.DeserializeObject<List<T>>(text);
}
This is an old question and I don't quite understand the business need of listening for route changes to push a route change; seems roundabout.
BUT if you ended up here because all you wanted was to update the 'page_path'
on a react-router route change for google analytics / global site tag / something similar, here's a hook you can now use. I wrote it based on the accepted answer:
useTracking.js
import { useEffect } from 'react'
import { useHistory } from 'react-router-dom'
export const useTracking = (trackingId) => {
const { listen } = useHistory()
useEffect(() => {
const unlisten = listen((location) => {
// if you pasted the google snippet on your index.html
// you've declared this function in the global
if (!window.gtag) return
window.gtag('config', trackingId, { page_path: location.pathname })
})
// remember, hooks that add listeners
// should have cleanup to remove them
return unlisten
}, [trackingId, listen])
}
You should use this hook once in your app, somewhere near the top but still inside a router. I have it on an App.js
that looks like this:
App.js
import * as React from 'react'
import { BrowserRouter, Route, Switch } from 'react-router-dom'
import Home from './Home/Home'
import About from './About/About'
// this is the file above
import { useTracking } from './useTracking'
export const App = () => {
useTracking('UA-USE-YOURS-HERE')
return (
<Switch>
<Route path="/about">
<About />
</Route>
<Route path="/">
<Home />
</Route>
</Switch>
)
}
// I find it handy to have a named export of the App
// and then the default export which wraps it with
// all the providers I need.
// Mostly for testing purposes, but in this case,
// it allows us to use the hook above,
// since you may only use it when inside a Router
export default () => (
<BrowserRouter>
<App />
</BrowserRouter>
)
Here is what worked for me (specific to Oracle, but using scalar
seems to be the key)
Long getNext() {
Query query =
session.createSQLQuery("select MYSEQ.nextval as num from dual")
.addScalar("num", StandardBasicTypes.BIG_INTEGER);
return ((BigInteger) query.uniqueResult()).longValue();
}
Thanks to the posters here: springsource_forum
First of all you need to extract the path with something like this:
$("a#myLink").attr("href");
Then take a look at this plugin: http://plugins.jquery.com/project/query-object
It will help you handle all kinds of querystring things you want to do.
/Peter F
First of all, link_to is a html tag helper, its second argument is the url, followed by html_options. What you would like is to pass account_id as a url parameter to the path. If you have set up named routes correctly in routes.rb, you can use path helpers.
link_to "+ Service", new_my_service_path(:account_id => acct.id)
I think the best practice is to pass model values as a param nested within :
link_to "+ Service", new_my_service_path(:my_service => { :account_id => acct.id })
# my_services_controller.rb
def new
@my_service = MyService.new(params[:my_service])
end
And you need to control that account_id is allowed for 'mass assignment'. In rails 3 you can use powerful controls to filter valid params within the controller where it belongs. I highly recommend.
http://apidock.com/rails/ActiveModel/MassAssignmentSecurity/ClassMethods
Also note that if account_id is not freely set by the user (e.g., a user can only submit a service for the own single account_id, then it is better practice not to send it via the request, but set it within the controller by adding something like:
@my_service.account_id = current_user.account_id
You can surely combine the two if you only allow users to create service on their own account, but allow admin to create anyone's by using roles in attr_accessible.
hope this helps
Well now will be different after angular 5:
{{ number | currency :'GBP':'symbol':'1.2-2' }}
Simple way to handle this is to include this in your application.properties or .yml file:
server.port=0
for application.properties and server.port: 0
for application.yml files. Of course need to be aware these may change depending on the springboot version you are using.
These will allow your machine to dynamically allocate any free port available for use.
To statically assign a port change the above to server.port = someportnumber
. If running unix based OS you may want to check for zombie activities on the port in question and if possible kill it using fuser -k {theport}/tcp
.
Your .yml or .properties should look like this.
server:
port: 8089
servlet:
context-path: /somecontextpath
Intent i = new Intent(firstactivity.this, secondactivity.class);
startActivity(i);
Just summarising @libing's answer with a sample that worked for me.
val gson = Gson()
val todoItem: TodoItem = gson.fromJson(this.assets.readAssetsFile("versus.json"), TodoItem::class.java)
private fun AssetManager.readAssetsFile(fileName : String): String = open(fileName).bufferedReader().use{it.readText()}
Without this extension function the same can be achieved by using BufferedReader
and InputStreamReader
this way:
val i: InputStream = this.assets.open("versus.json")
val br = BufferedReader(InputStreamReader(i))
val todoItem: TodoItem = gson.fromJson(br, TodoItem::class.java)
use ng-pattern, so that ng-valid and ng-dirty can act correctly
Email:<input type="email" name="email1" ng-model="emailReg">
Repeat Email:<input type="email" name="email2" ng-model="emailReg2" ng-pattern="emailReg">
<span ng-show="registerForm.email2.$error.pattern">Emails have to match!</span>
You can make use of bitwise AND operator &
.
Let's see below:
x = [1, 2, 3, 4, 5, 6, 7]
y = [i for i in x if i&1]
>>>
[1, 3, 5, 7]
Bitwise AND operator is used with 1, and the reason it works because, odd number when written in binary must have its first digit as 1. Let's check
23 = 1 * (2**4) + 0 * (2**3) + 1 * (2**2) + 1 * (2**1) + 1 * (2**0) = 10111
14 = 1 * (2**3) + 1 * (2**2) + 1 * (2**1) + 0 * (2**0) = 1110
AND operation with 1 will only return 1 (1 in binary will also have last digit 1), iff the value is odd.
Check the Python Bitwise Operator page for more.
P.S: You can tactically use this method if you want to select odd and even columns in a dataframe. Let's say x and y coordinates of facial key-points are given as columns x1, y1, x2, etc... To normalize the x and y coordinates with width and height values of each image you can simply perform
for i in range(df.shape[1]):
if i&1:
df.iloc[:, i] /= heights
else:
df.iloc[:, i] /= widths
This is not exactly related to the question but for data scientists and computer vision engineers this method could be useful.
Cheers!
I think it's an rather easy task to explain.
At first callback are just ordinary functions.
And the further is, that we call this function (let's call it A) from inside another function (let's call it B).
The magic about this is that I decide, which function should be called by the function from outside B.
At the time I write the function B I don't know which callback function should be called. At the time I call function B I also tell this function to call function A. That is all.
Many Answers here, many suggesting doing a chown.
For me was much easier to change user to the user owning the folder (in my case tomcat) as the owner was allowed to write:
sudo su tomcat
and than do a
git pull
no need to change permissions. I prefere this because I do not have to remember to change permission back after I am done.
To find the user owning the folder do a ls -la
Note: Do not give non-sudo write access to folders that are served!
@drop-shadow if you're using Hibernate, you can call Hibernate.initialize()
when you invoke the getStudents()
method:
Public class UniversityDaoImpl extends GenericDaoHibernate<University, Integer> implements UniversityDao {
//...
@Override
public University get(final Integer id) {
Query query = getQuery("from University u where idUniversity=:id").setParameter("id", id).setMaxResults(1).setFetchSize(1);
University university = (University) query.uniqueResult();
***Hibernate.initialize(university.getStudents());***
return university;
}
//...
}
The error message seems self-explanatory. You can't instantiate an instance of an interface, and you've declared IUser
as an interface. (The same rule applies to abstract classes.) The whole point of an interface is that it doesn't do anything—there is no implementation provided for its methods.
However, you can instantiate an instance of a class that implements that interface (provides an implementation for its methods), which in your case is the User
class.
Thus, your code needs to look like this:
IUser user = new User();
This instantiates an instance of the User
class (which provides the implementation), and assigns it to an object variable for the interface type (IUser
, which provides the interface, the way in which you as the programmer can interact with the object).
Of course, you could also write:
User user = new User();
which creates an instance of the User
class and assigns it to an object variable of the same type, but that sort of defeats the purpose of a defining a separate interface in the first place.
Use string interpolation decimalVar:0.00
Quote from Conda for Data Science article onto Continuum's website:
Conda vs pip
Python programmers are probably familiar with pip to download packages from PyPI and manage their requirements. Although, both conda and pip are package managers, they are very different:
- Pip is specific for Python packages and conda is language-agnostic, which means we can use conda to manage packages from any language Pip compiles from source and conda installs binaries, removing the burden of compilation
- Conda creates language-agnostic environments natively whereas pip relies on virtualenv to manage only Python environments Though it is recommended to always use conda packages, conda also includes pip, so you don’t have to choose between the two. For example, to install a python package that does not have a conda package, but is available through pip, just run, for example:
conda install pip
pip install gensim
You can use unirest, It provides easy method to post request. `
import unirest
def callback(response):
print "code:"+ str(response.code)
print "******************"
print "headers:"+ str(response.headers)
print "******************"
print "body:"+ str(response.body)
print "******************"
print "raw_body:"+ str(response.raw_body)
# consume async post request
def consumePOSTRequestASync():
params = {'test1':'param1','test2':'param2'}
# we need to pass a dummy variable which is open method
# actually unirest does not provide variable to shift between
# application-x-www-form-urlencoded and
# multipart/form-data
params['dummy'] = open('dummy.txt', 'r')
url = 'http://httpbin.org/post'
headers = {"Accept": "application/json"}
# call get service with headers and params
unirest.post(url, headers = headers,params = params, callback = callback)
# post async request multipart/form-data
consumePOSTRequestASync()
function getURLParameter(name) {
return decodeURIComponent((new RegExp('[?|&]' + name + '=' + '([^&;]+?)(&|#|;|$)').exec(location.search) || [null, ''])[1].replace(/\+/g, '%20')) || null;
}
So you can use:
myvar = getURLParameter('myvar');
Even this works.
<?xml version="1.0" encoding="utf-8"?>
<selector xmlns:android="http://schemas.android.com/apk/res/android">
<item android:state_pressed="true" android:drawable="@color/dim_orange_btn_pressed" />
<item android:state_focused="true" android:drawable="@color/dim_orange_btn_pressed" />
<item android:drawable="@android:color/white" />
</selector>
I added the android:drawable
attribute to each item, and their values are colors.
By the way, why do they say that color
is one of the attributes of selector
? They don't write that android:drawable
is required.
<?xml version="1.0" encoding="utf-8"?>
<selector xmlns:android="http://schemas.android.com/apk/res/android" >
<item
android:color="hex_color"
android:state_pressed=["true" | "false"]
android:state_focused=["true" | "false"]
android:state_selected=["true" | "false"]
android:state_checkable=["true" | "false"]
android:state_checked=["true" | "false"]
android:state_enabled=["true" | "false"]
android:state_window_focused=["true" | "false"] />
</selector>
Hanselman has a post on using the WinFormsApplicationBase class from the Microsoft.VisualBasic assembly to do this.
For those using CanCanCan:
You will get this error if CanCanCan cannot find the correct params method.
For the :create
action, CanCan will try to initialize a new instance with sanitized input by seeing if your controller will respond to the following methods (in order):
create_params
<model_name>_params
such as article_params (this is
the default convention in rails for naming your param method)resource_params
(a generically named method you could specify in
each controller)Additionally, load_and_authorize_resource
can now take a param_method
option to specify a custom method in the controller to run to sanitize input.
You can associate the param_method
option with a symbol corresponding to the name of a method that will get called:
class ArticlesController < ApplicationController
load_and_authorize_resource param_method: :my_sanitizer
def create
if @article.save
# hurray
else
render :new
end
end
private
def my_sanitizer
params.require(:article).permit(:name)
end
end
source: https://github.com/CanCanCommunity/cancancan#33-strong-parameters
I have a Mac, but luckily this should work the same way:
pip
is a command-line thing. You don't run it in python.
For example, on my Mac, I just say:
$pip install somelib
pretty easy!
So I assume your permissions table has a foreign key reference to admin_accounts table. If so because of referential integrity you will only be able to add permissions for account ids exsiting in the admin accounts table. Which also means that you wont be able to enter a user_account_id [assuming there are no duplicates!]
Though this question is rather old and has already been answered, I just want to add a note on how to do proper exception handling in C++11:
std::nested_exception
and std::throw_with_nested
It is described on StackOverflow here and here, how you can get a backtrace on your exceptions inside your code without need for a debugger or cumbersome logging, by simply writing a proper exception handler which will rethrow nested exceptions.
Since you can do this with any derived exception class, you can add a lot of information to such a backtrace! You may also take a look at my MWE on GitHub, where a backtrace would look something like this:
Library API: Exception caught in function 'api_function'
Backtrace:
~/Git/mwe-cpp-exception/src/detail/Library.cpp:17 : library_function failed
~/Git/mwe-cpp-exception/src/detail/Library.cpp:13 : could not open file "nonexistent.txt"
You would use QMessageBox::question
for that.
Example in a hypothetical widget's slot:
#include <QApplication>
#include <QMessageBox>
#include <QDebug>
// ...
void MyWidget::someSlot() {
QMessageBox::StandardButton reply;
reply = QMessageBox::question(this, "Test", "Quit?",
QMessageBox::Yes|QMessageBox::No);
if (reply == QMessageBox::Yes) {
qDebug() << "Yes was clicked";
QApplication::quit();
} else {
qDebug() << "Yes was *not* clicked";
}
}
Should work on Qt 4 and 5, requires QT += widgets
on Qt 5, and CONFIG += console
on Win32 to see qDebug()
output.
See the StandardButton
enum to get a list of buttons you can use; the function returns the button that was clicked. You can set a default button with an extra argument (Qt "chooses a suitable default automatically" if you don't or specify QMessageBox::NoButton
).
Your syntax is not correct. It should be like that:
for (Tweet tweet : tweets) {
for(long forId : idFromArray){
long tweetId = tweet.getId();
if(forId != tweetId){
String twitterString = tweet.getText();
db.insertTwitter(twitterString);
}
}
}
This answer no longer really answers the question since it was updated ;)
For Python, I would like to suggest 'A Byte of Python'.
Disclosure: I'm the author of this book, but the user feedback on the main page and the book should hopefully speak for itself :)
As an alternative that doesn't require elevation or netsh you could also use TcpListener for instance.
The following is a modified excerpt of this sample: https://github.com/googlesamples/oauth-apps-for-windows/tree/master/OAuthDesktopApp
// Generates state and PKCE values.
string state = randomDataBase64url(32);
string code_verifier = randomDataBase64url(32);
string code_challenge = base64urlencodeNoPadding(sha256(code_verifier));
const string code_challenge_method = "S256";
// Creates a redirect URI using an available port on the loopback address.
var listener = new TcpListener(IPAddress.Loopback, 0);
listener.Start();
string redirectURI = string.Format("http://{0}:{1}/", IPAddress.Loopback, ((IPEndPoint)listener.LocalEndpoint).Port);
output("redirect URI: " + redirectURI);
// Creates the OAuth 2.0 authorization request.
string authorizationRequest = string.Format("{0}?response_type=code&scope=openid%20profile&redirect_uri={1}&client_id={2}&state={3}&code_challenge={4}&code_challenge_method={5}",
authorizationEndpoint,
System.Uri.EscapeDataString(redirectURI),
clientID,
state,
code_challenge,
code_challenge_method);
// Opens request in the browser.
System.Diagnostics.Process.Start(authorizationRequest);
// Waits for the OAuth authorization response.
var client = await listener.AcceptTcpClientAsync();
// Read response.
var response = ReadString(client);
// Brings this app back to the foreground.
this.Activate();
// Sends an HTTP response to the browser.
WriteStringAsync(client, "<html><head><meta http-equiv='refresh' content='10;url=https://google.com'></head><body>Please close this window and return to the app.</body></html>").ContinueWith(t =>
{
client.Dispose();
listener.Stop();
Console.WriteLine("HTTP server stopped.");
});
// TODO: Check the response here to get the authorization code and verify the code challenge
The read and write methods being:
private string ReadString(TcpClient client)
{
var readBuffer = new byte[client.ReceiveBufferSize];
string fullServerReply = null;
using (var inStream = new MemoryStream())
{
var stream = client.GetStream();
while (stream.DataAvailable)
{
var numberOfBytesRead = stream.Read(readBuffer, 0, readBuffer.Length);
if (numberOfBytesRead <= 0)
break;
inStream.Write(readBuffer, 0, numberOfBytesRead);
}
fullServerReply = Encoding.UTF8.GetString(inStream.ToArray());
}
return fullServerReply;
}
private Task WriteStringAsync(TcpClient client, string str)
{
return Task.Run(() =>
{
using (var writer = new StreamWriter(client.GetStream(), new UTF8Encoding(false)))
{
writer.Write("HTTP/1.0 200 OK");
writer.Write(Environment.NewLine);
writer.Write("Content-Type: text/html; charset=UTF-8");
writer.Write(Environment.NewLine);
writer.Write("Content-Length: " + str.Length);
writer.Write(Environment.NewLine);
writer.Write(Environment.NewLine);
writer.Write(str);
}
});
}
Use &
:
foreach($arr as &$value) {
$value = $newVal;
}
&
passes a value of the array as a reference and does not create a new instance of the variable. Thus if you change the reference the original value will change.
PHP documentation for Passing by Reference
Edit 2018
This answer seems to be favored by a lot of people on the internet, which is why I decided to add more information and words of caution.
While pass by reference in foreach
(or functions) is a clean and short solution, for many beginners this might be a dangerous pitfall.
Loops in PHP don't have their own scope. - @Mark Amery
This could be a serious problem when the variables are being reused in the same scope. Another SO question nicely illustrates why that might be a problem.
As foreach relies on the internal array pointer in PHP 5, changing it within the loop may lead to unexpected behavior. - PHP docs for foreach.
Unsetting a record or changing the hash value (the key) during the iteration on the same loop could lead to potentially unexpected behaviors in PHP < 7. The issue gets even more complicated when the array itself is a reference.
Foreach performance.
In general, PHP prefers pass by value due to the copy-on-write feature. It means that internally PHP will not create duplicate data unless the copy of it needs to be changed. It is debatable whether pass by reference in foreach
would offer a performance improvement. As it is always the case, you need to test your specific scenario and determine which option uses less memory and CPU time. For more information see the SO post linked below by NikiC.
Code readability.
Creating references in PHP is something that quickly gets out of hand. If you are a novice and don't have full control of what you are doing, it is best to stay away from references. For more information about &
operator take a look at this guide: Reference — What does this symbol mean in PHP?
For those who want to learn more about this part of PHP language: PHP References Explained
A very nice technical explanation by @NikiC of the internal logic of PHP foreach
loops:
How does PHP 'foreach' actually work?
This is a bit faster:
static const char* s_hexTable[256] =
{
"00", "01", "02", "03", "04", "05", "06", "07", "08", "09", "0a", "0b", "0c", "0d", "0e", "0f", "10", "11",
"12", "13", "14", "15", "16", "17", "18", "19", "1a", "1b", "1c", "1d", "1e", "1f", "20", "21", "22", "23",
"24", "25", "26", "27", "28", "29", "2a", "2b", "2c", "2d", "2e", "2f", "30", "31", "32", "33", "34", "35",
"36", "37", "38", "39", "3a", "3b", "3c", "3d", "3e", "3f", "40", "41", "42", "43", "44", "45", "46", "47",
"48", "49", "4a", "4b", "4c", "4d", "4e", "4f", "50", "51", "52", "53", "54", "55", "56", "57", "58", "59",
"5a", "5b", "5c", "5d", "5e", "5f", "60", "61", "62", "63", "64", "65", "66", "67", "68", "69", "6a", "6b",
"6c", "6d", "6e", "6f", "70", "71", "72", "73", "74", "75", "76", "77", "78", "79", "7a", "7b", "7c", "7d",
"7e", "7f", "80", "81", "82", "83", "84", "85", "86", "87", "88", "89", "8a", "8b", "8c", "8d", "8e", "8f",
"90", "91", "92", "93", "94", "95", "96", "97", "98", "99", "9a", "9b", "9c", "9d", "9e", "9f", "a0", "a1",
"a2", "a3", "a4", "a5", "a6", "a7", "a8", "a9", "aa", "ab", "ac", "ad", "ae", "af", "b0", "b1", "b2", "b3",
"b4", "b5", "b6", "b7", "b8", "b9", "ba", "bb", "bc", "bd", "be", "bf", "c0", "c1", "c2", "c3", "c4", "c5",
"c6", "c7", "c8", "c9", "ca", "cb", "cc", "cd", "ce", "cf", "d0", "d1", "d2", "d3", "d4", "d5", "d6", "d7",
"d8", "d9", "da", "db", "dc", "dd", "de", "df", "e0", "e1", "e2", "e3", "e4", "e5", "e6", "e7", "e8", "e9",
"ea", "eb", "ec", "ed", "ee", "ef", "f0", "f1", "f2", "f3", "f4", "f5", "f6", "f7", "f8", "f9", "fa", "fb",
"fc", "fd", "fe", "ff"
};
// Convert binary data sequence [beginIt, endIt) to hexadecimal string
void dataToHexString(const uint8_t*const beginIt, const uint8_t*const endIt, string& str)
{
str.clear();
str.reserve((endIt - beginIt) * 2);
for(const uint8_t* it(beginIt); it != endIt; ++it)
{
str += s_hexTable[*it];
}
}
data = pd.DataFrame({"a":[1,2,3,34],"b":[5,6,7,8]})
new_data = pd.melt(data)
new_data.set_index("variable", inplace=True)
This gives a dataframe with index as column name of data and all data are present in "values" column
The nproc command shows the number of processing units available:
$ nproc
Sample outputs: 4
lscpu gathers CPU architecture information form /proc/cpuinfon in human-read-able format:
$ lscpu
Sample outputs:
Architecture: x86_64
CPU op-mode(s): 32-bit, 64-bit
Byte Order: Little Endian
CPU(s): 8
On-line CPU(s) list: 0-7
Thread(s) per core: 1
Core(s) per socket: 4
CPU socket(s): 2
NUMA node(s): 1
Vendor ID: GenuineIntel
CPU family: 6
Model: 15
Stepping: 7
CPU MHz: 1866.669
BogoMIPS: 3732.83
Virtualization: VT-x
L1d cache: 32K
L1i cache: 32K
L2 cache: 4096K
NUMA node0 CPU(s): 0-7
Also remember that it must be:
#include "stdafx.h"
#include <iostream>
and not the other way around
#include <iostream>
#include "stdafx.h"
find
is the common tool for this kind of task :
find ./my_dir -mtime +10 -type f -delete
EXPLANATIONS
./my_dir
your directory (replace with your own)-mtime +10
older than 10 days-type f
only files-delete
no surprise. Remove it to test your find
filter before executing the whole commandAnd take care that ./my_dir
exists to avoid bad surprises !
Depending on your table type, locking will perform differently, but so will a SELECT count. For MyISAM tables a simple SELECT count(*) FROM table should not lock the table since it accesses meta data to pull the record count. Innodb will take longer since it has to grab the table in a snapshot to count the records, but it shouldn't cause locking.
You should at least have concurrent_insert set to 1 (default). Then, if there are no "gaps" in the data file for the table to fill, inserts will be appended to the file and SELECT and INSERTs can happen simultaneously with MyISAM tables. Note that deleting a record puts a "gap" in the data file which will attempt to be filled with future inserts and updates.
If you rarely delete records, then you can set concurrent_insert equal to 2, and inserts will always be added to the end of the data file. Then selects and inserts can happen simultaneously, but your data file will never get smaller, no matter how many records you delete (except all records).
The bottom line, if you have a lot of updates, inserts and selects on a table, you should make it InnoDB. You can freely mix table types in a system though.
****How to remove b' ' chars which is decoded string in python ****
import base64
a='cm9vdA=='
b=base64.b64decode(a).decode('utf-8')
print(b)
For PHP 7 in Ubuntu you can also do:
sudo apt-get install php7.0-pgsql
So, now you can do not uncomment lines in php.ini
UPD:
I have a same error, so problem was not in driver.
I changed my database.ini
, but every time I saw an error.
And I change database config in .env
and errors gone.
Use daniel's solution if the set of encoded characters is relatively restricted. Otherwise, use one of the numerous HTML-parsing libraries.
I like BeautifulSoup because it can handle malformed XML/HTML :
http://www.crummy.com/software/BeautifulSoup/
for your question, there's an example in their documentation
from BeautifulSoup import BeautifulStoneSoup
BeautifulStoneSoup("Sacré bleu!",
convertEntities=BeautifulStoneSoup.HTML_ENTITIES).contents[0]
# u'Sacr\xe9 bleu!'
The correct way of referring to a method parameter is like this:
I'm not aware of anything like a single table that lets you compare all of them in at one glance (I'm not sure such a table would even be feasible).
Of course the ISO standard document enumerates the complexity requirements in detail, sometimes in various rather readable tables, other times in less readable bullet points for each specific method.
Also the STL library reference at http://www.cplusplus.com/reference/stl/ provides the complexity requirements where appropriate.
Use XmlDocument.Load()
method to load XML from your file. Then use XmlDocument.InnerXml
property to get XML string.
XmlDocument doc = new XmlDocument();
doc.Load("path to your file");
string xmlcontents = doc.InnerXml;
i don't know if this answer can be found on the links above, but i just run SQL management studio as Administrator and worked. Hope it helps
Cheers
Simplest way is to just use the ShellJS lib ...
$ npm install [-g] shelljs
EXEC Example:
require('shelljs/global');
// Sync call to exec()
var version = exec('node --version', {silent:true}).output;
// Async call to exec()
exec('netstat.exe -an', function(status, output) {
console.log('Exit status:', status);
console.log('Program output:', output);
});
ShellJs.org supports many common shell commands mapped as NodeJS functions including:
You can leverage the browser's URL parser using an <a>
element:
var hostname = $('<a>').prop('href', url).prop('hostname');
or without jQuery:
var a = document.createElement('a');
a.href = url;
var hostname = a.hostname;
(This trick is particularly useful for resolving paths relative to the current page.)
Use the following function:
function get_hostname(url) {
var m = url.match(/^http:\/\/[^/]+/);
return m ? m[0] : null;
}
Use it like this:
get_hostname("http://example.com/path");
This will return http://example.com/
as in your example output.
If you are only trying the get the hostname of the current page, use document.location.hostname
.
There is another way to achieve the result using the date_part() function in postgres.
SELECT date_part('month', txn_date) AS txn_month, date_part('year', txn_date) AS txn_year, sum(amount) as monthly_sum
FROM yourtable
GROUP BY date_part('month', txn_date)
Thanks
If you are using a custom binding, you can set the values like this:
<customBinding>
<binding name="x">
<httpsTransport maxBufferSize="2147483647" maxReceivedMessageSize="2147483647" />
</binding>
</customBinding>
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
<title>Show and hide div with JavaScript</title>
<script>
var button_beg = '<button id="button" onclick="showhide()">', button_end = '</button>';
var show_button = 'Show', hide_button = 'Hide';
function showhide() {
var div = document.getElementById( "hide_show" );
var showhide = document.getElementById( "showhide" );
if ( div.style.display !== "none" ) {
div.style.display = "none";
button = show_button;
showhide.innerHTML = button_beg + button + button_end;
} else {
div.style.display = "block";
button = hide_button;
showhide.innerHTML = button_beg + button + button_end;
}
}
function setup_button( status ) {
if ( status == 'show' ) {
button = hide_button;
} else {
button = show_button;
}
var showhide = document.getElementById( "showhide" );
showhide.innerHTML = button_beg + button + button_end;
}
window.onload = function () {
setup_button( 'hide' );
showhide(); // if setup_button is set to 'show' comment this line
}
</script>
</head>
<body>
<div id="showhide"></div>
<div id="hide_show">
<p>This div will be show and hide on button click</p>
</div>
</body>
</html>
OK, maybe there are more like me that do not have any UVESA_MODE or S3 references in their menu.lst. First, do "VBoxManage setextradata "VM_NAME_HERE" "CustomVideoMode1" "320x480x32"" procedure through terminal. My custom videomode was "1920x1089x32"... (sorry, I use Linux, so procedure works on linux) for Windows, just add .exe to VBoxManage.. Look in the first entry as described before, this is the menu entry you would normally boot. I normally use nano as it works more easy for me. And nano happens to be present in Android >6 too. (other version not tried)
Procedure:
Hope this helps anyone as it did solve my problem.
edit: I see that I did place this article in the wrong place, since the original question is about another Android version. Does anyone know how to move it to an appropriate location?
You have referenced the jQuery JS file haven't you? There's no reason why farzad's answer shouldn't work.
td:nth-of-type(n) { padding-right: 10px;}
it will adjust auto space between all td
General case:
Sources
tabEvent Listener Breakpoints
, and expand treeSimilarly, you can:
Inspect element
"event listeners
'.Yes, you should use semicolons after every statement in JavaScript.
Event if not asked, it is a shame there are no ready solution samples for F#. To fix this here is my recipe, just because I can and F# is a wonderful .NET language.
Duplicated events are filtered out using FSharp.Control.Reactive
package, which is just a F# wrapper for reactive extensions. All that can be targeted to full framework or netstandard2.0
:
let createWatcher path filter () =
new FileSystemWatcher(
Path = path,
Filter = filter,
EnableRaisingEvents = true,
SynchronizingObject = null // not needed for console applications
)
let createSources (fsWatcher: FileSystemWatcher) =
// use here needed events only.
// convert `Error` and `Renamed` events to be merded
[| fsWatcher.Changed :> IObservable<_>
fsWatcher.Deleted :> IObservable<_>
fsWatcher.Created :> IObservable<_>
//fsWatcher.Renamed |> Observable.map renamedToNeeded
//fsWatcher.Error |> Observable.map errorToNeeded
|] |> Observable.mergeArray
let handle (e: FileSystemEventArgs) =
printfn "handle %A event '%s' '%s' " e.ChangeType e.Name e.FullPath
let watch path filter throttleTime =
// disposes watcher if observer subscription is disposed
Observable.using (createWatcher path filter) createSources
// filter out multiple equal events
|> Observable.distinctUntilChanged
// filter out multiple Changed
|> Observable.throttle throttleTime
|> Observable.subscribe handle
[<EntryPoint>]
let main _args =
let path = @"C:\Temp\WatchDir"
let filter = "*.zip"
let throttleTime = TimeSpan.FromSeconds 10.
use _subscription = watch path filter throttleTime
System.Console.ReadKey() |> ignore
0 // return an integer exit code
list[-1]
will retrieve the last element of the list without changing the list.
list.pop()
will retrieve the last element of the list, but it will mutate/change the original list. Usually, mutating the original list is not recommended.
Alternatively, if, for some reason, you're looking for something less pythonic, you could use list[len(list)-1]
, assuming the list is not empty.
Another trivial solution would be:
from aqcron import At
from time import sleep
from datetime import datetime
# Event scheduling
event_1 = At( second=5 )
event_2 = At( second=[0,20,40] )
while True:
now = datetime.now()
# Event check
if now in event_1: print "event_1"
if now in event_2: print "event_2"
sleep(1)
And the class aqcron.At is:
# aqcron.py
class At(object):
def __init__(self, year=None, month=None,
day=None, weekday=None,
hour=None, minute=None,
second=None):
loc = locals()
loc.pop("self")
self.at = dict((k, v) for k, v in loc.iteritems() if v != None)
def __contains__(self, now):
for k in self.at.keys():
try:
if not getattr(now, k) in self.at[k]: return False
except TypeError:
if self.at[k] != getattr(now, k): return False
return True
Other answers already on Stackoverflow:
From perlfaq8:
When you build modules, tell Perl where to install the modules.
For Makefile.PL-based distributions, use the INSTALL_BASE option when generating Makefiles:
perl Makefile.PL INSTALL_BASE=/mydir/perl
You can set this in your CPAN.pm configuration so modules automatically install in your private library directory when you use the CPAN.pm shell:
% cpan
cpan> o conf makepl_arg INSTALL_BASE=/mydir/perl
cpan> o conf commit
For Build.PL-based distributions, use the --install_base option:
perl Build.PL --install_base /mydir/perl
You can configure CPAN.pm to automatically use this option too:
% cpan
cpan> o conf mbuildpl_arg '--install_base /mydir/perl'
cpan> o conf commit
Use getChildCount()
and getChildAt(int index)
.
Example:
LinearLayout ll = …
final int childCount = ll.getChildCount();
for (int i = 0; i < childCount; i++) {
View v = ll.getChildAt(i);
// Do something with v.
// …
}
There are 2 main ways:
Using .content
(simplest/official) (see Zhenyi Zhang's answer):
import io # Note: io.BytesIO is StringIO.StringIO on Python2.
import requests
r = requests.get('http://lorempixel.com/400/200')
r.raise_for_status()
with io.BytesIO(r.content) as f:
with Image.open(f) as img:
img.show()
Using .raw
(see Martijn Pieters's answer):
import requests
r = requests.get('http://lorempixel.com/400/200', stream=True)
r.raise_for_status()
r.raw.decode_content = True # Required to decompress gzip/deflate compressed responses.
with PIL.Image.open(r.raw) as img:
img.show()
r.close() # Safety when stream=True ensure the connection is released.
Timing both shows no noticeable difference.
Instead just directly print the characters onto the console because the text file maybe very large and you may require a lot of memory.
#include <stdio.h>
#include <stdlib.h>
int main() {
FILE *f;
char c;
f=fopen("test.txt","rt");
while((c=fgetc(f))!=EOF){
printf("%c",c);
}
fclose(f);
return 0;
}
This may be a bit redundant, but I would suggest being cautious. Not necessarily that it's a bad thing to rename tables, but standardization is just that; a standard -- this database may already be "standardized", however badly :) -- I would suggest consistency to be a better goal given that this database already exists and presumably it consists of more than just 2 tables.
Unless you can standardize the entire database, or at least are planning to work towards that end, I suspect that table names are just the tip of the iceberg and concentrating on the task at hand, enduring the pain of poorly named objects, may be in your best interest --
Practical consistency sometimes is the best standard... :)
my2cents ---
The usual way is to use zip()
:
for x, y in zip(a, b):
# x is from a, y is from b
This will stop when the shorter of the two iterables a
and b
is exhausted. Also worth noting: itertools.izip()
(Python 2 only) and itertools.izip_longest()
(itertools.zip_longest()
in Python 3).
Thanks to @cwhisperer. I had the same issue with Doctrine in a Symfony app. I just added the option to my config.yml:
doctrine:
dbal:
driver: pdo_mysql
options:
# PDO::MYSQL_ATTR_INIT_COMMAND
1002: "SET sql_mode=(SELECT REPLACE(@@sql_mode,'ONLY_FULL_GROUP_BY',''))"
This worked fine for me.
perhaps this is what you're looking for: https://github.com/android/platform_frameworks_base/blob/master/core/res/res/values/colors.xml
I just had this same problem, and I ended up finding the simplest solution which works for my needs. In the table properties, I set the default value to 0 for the fields that I don't want to show nulls. Super easy.
If the path you want is the one to the workbook running the macro, and that workbook has been saved, then
ThisWorkbook.Path
is what you would use.
Just use JavaScript. Then compatible with most and older browsers. Use the escape sequence \n for newline.
document.getElementById("ElementID").title = 'First Line text \n Second line text'
You could use a Collector:
import java.util.*;
import java.util.stream.Collectors;
public class Defensive {
public static void main(String[] args) {
Map<String, Column> original = new HashMap<>();
original.put("foo", new Column());
original.put("bar", new Column());
Map<String, Column> copy = original.entrySet()
.stream()
.collect(Collectors.toMap(Map.Entry::getKey,
e -> new Column(e.getValue())));
System.out.println(original);
System.out.println(copy);
}
static class Column {
public Column() {}
public Column(Column c) {}
}
}
The second way isn't valid XML; did you mean <numbers>[3,2,1]</numbers>
?
If so, then the first one is preferred because all you need to get the array elements is some XML manipulation. On the second one you first need to get the value of the <numbers> element via XML manipulation, then somehow parse the [3,2,1]
text using something else.
Or if you really want some compact format, you can consider using JSON (which "natively" supports arrays). But that depends on your application requirements.
You can also try use "doctor" command. It will fix most cases.
npx @react-native-community/cli doctor
You have to be specific about the columns you are selecting. If your user
table had four columns id, name, username, opted_in
you must select exactly those four columns from the query. The syntax looks like:
INSERT INTO user (id, name, username, opted_in)
SELECT id, name, username, opted_in
FROM user LEFT JOIN user_permission AS userPerm ON user.id = userPerm.user_id
However, there does not appear to be any reason to join against user_permission
here, since none of the columns from that table would be inserted into user
. In fact, this INSERT
seems bound to fail with primary key uniqueness violations.
MySQL does not support inserts into multiple tables at the same time. You either need to perform two INSERT
statements in your code, using the last insert id from the first query, or create an AFTER INSERT
trigger on the primary table.
INSERT INTO user (name, username, email, opted_in) VALUES ('a','b','c',0);
/* Gets the id of the new row and inserts into the other table */
INSERT INTO user_permission (user_id, permission_id) VALUES (LAST_INSERT_ID(), 4)
Or using a trigger:
CREATE TRIGGER creat_perms AFTER INSERT ON `user`
FOR EACH ROW
BEGIN
INSERT INTO user_permission (user_id, permission_id) VALUES (NEW.id, 4)
END
It would appear that you should
struct MD5context
and pass it to MD5Init
to get it into a proper starting conditionMD5Update
with the context and your dataMD5Final
to get the resulting hashThese three functions and the structure definition make a nice abstract interface to the hash algorithm. I'm not sure why you were shown the core transform function in that header as you probably shouldn't interact with it directly.
The author could have done a little more implementation hiding by making the structure an abstract type, but then you would have been forced to allocate the structure on the heap every time (as opposed to now where you can put it on the stack if you so desire).
I had the same problem. (My problem is with gradle 4.4 files)
Actually the problem is incorrect downloading of 4.4 gradle which already I had.
When I delete gradle 4.4 version
C:\Users\$Your_User\.gradle\wrapper\dists\gradle-4.4-all
Android studio again downloads gradle-4.4 and syncs with my project.
Now it had rectified with the help of Michelin Man
Thanks for your answer Michelin
To switch the display-style between block
and none
you can do something like this:
function toggleDiv(id) {
var div = document.getElementById(id);
div.style.display = div.style.display == "none" ? "block" : "none";
}
working demo: http://jsfiddle.net/BQUyT/2/
This is what you have to do since sess.createCriteria is deprecated:
CriteriaBuilder builder = getSession().getCriteriaBuilder();
CriteriaQuery<User> q = builder.createQuery(User.class);
Root<User> usr = q.from(User.class);
ParameterExpression<String> p = builder.parameter(String.class);
q.select(usr).where(builder.like(usr.get("name"),p))
.orderBy(builder.asc(usr.get("name")));
TypedQuery<User> query = getSession().createQuery(q);
query.setParameter(p, "%" + Main.filterName + "%");
List<User> list = query.getResultList();
I would prefer using "&&" -operator on inline if-statement. In my opinnion it gives cleaner codebase this way.
Generally you could be doing something like this
render(){
return(
<div>
<button className={this.state.active && 'active'}
onClick={ () => this.setState({active: !this.state.active}) }>Click me</button>
</div>
)
}
Just keep in mind arrow function is ES6 feature and remember to set 'this.state.active' value in class constructor(){}
this.state = { active: false }
or if you want to inject css in JSX you are able to do it this way
<button style={this.state.active && style.button} >button</button>
and you can declare style json variable
const style = { button: { background:'red' } }
remember using camelCase on JSX stylesheets.
In Xcode 6.1, Swift 1.0 to delay the launch screen:
Add the below statement in e didFinishLaunchingWithOptions
meth in AppDelegateod
NSThread.sleepForTimeInterval(3)
Here, time can be passed based on your requirement.
SWIFT 5
Thread.sleep(forTimeInterval: 3)
Just an example of event handler for Add event. Assumes that singleFileUploads option is enabled (which is the default). Read more jQuery File Upload documentation how to bound with add/fileuploadadd event. Inside loop you can use both vars this or file. An example of getting size property: this['size'] or file.size.
/**
* Handles Add event
*/
base.eventAdd = function(e, data) {
var errs = [];
var acceptFileTypes = /(\.|\/)(gif|jpe?g|png)$/i;
var maxFileSize = 5000000;
// Validate file
$.each(data.files, function(index, file) {
if (file.type.length && !acceptFileTypes.test(file.type)) {
errs.push('Selected file "' + file.name + '" is not alloawed. Invalid file type.');
}
if (this['size'] > maxFileSize) {
errs.push('Selected file "' + file.name + '" is too big, ' + parseInt(file.size / 1024 / 1024) + 'M.. File should be smaller than ' + parseInt(maxFileSize / 1024 / 1024) + 'M.');
}
});
// Output errors or submit data
if (errs.length > 0) {
alert('An error occured. ' + errs.join(" "));
} else {
data.submit();
}
};
string baseUrl = Request.Url.GetLeftPart(UriPartial.Authority)
That's it ;)
If you just want to get the minimum of a list, instead of sorting it and then getting the first element (O(N log N)
), you can use do it in linear time using min
:
<T extends Object & Comparable<? super T>> T min(Collection<? extends T> coll)
That looks gnarly at first, but looking at your previous questions, you have a List<String>
. In short: min
works on it.
For the long answer: all that super
and extends
stuff in the generic type constraints is what Josh Bloch calls the PECS principle (usually presented next to a picture of Arnold -- I'M NOT KIDDING!)
Producer Extends, Consumer Super
It essentially makes generics more powerful, since the constraints are more flexible while still preserving type safety (see: what is the difference between ‘super’ and ‘extends’ in Java Generics)
$.ajax({
url: 'http://url.of.my.server/submit',
dataType: "jsonp",
jsonp: 'callback',
jsonpCallback: 'jsonp_callback'
});
jsonp is the querystring parameter name that is defined to be acceptable by the server while the jsonpCallback is the javascript function name to be executed at the client.
When you use such url:
url: 'http://url.of.my.server/submit?callback=?'
the question mark ? at the end instructs jQuery to generate a random function while the predfined behavior of the autogenerated function will just invoke the callback -the sucess function in this case- passing the json data as a parameter.
$.ajax({
url: 'http://url.of.my.server/submit?callback=?',
success: function (data, status) {
mySurvey.closePopup();
},
error: function (xOptions, textStatus) {
mySurvey.closePopup();
}
});
The same goes here if you are using $.getJSON with ? placeholder it will generate a random function while the predfined behavior of the autogenerated function will just invoke the callback:
$.getJSON('http://url.of.my.server/submit?callback=?',function(data){
//process data here
});
Here a good implementation example of using schemas with SQL Server. We had several ms-access applications. We wanted to convert those to a ASP.NET App portal. Every ms-access application is written as an App for that portal. Every ms-access application has its own database tables. Some of those are related, we put those in the common dbo schema of SQL Server. The rest gets its own schemas. That way if we want to know what tables belong to an App on the ASP.NET app portal that can easily be navigated, visualised and maintained.
I did not know about DMBS_METADATA, but your answers prompted me to create a utility to script all objects owned by an Oracle user.
How about using a substring with IN.
select * from tablename where substring(column,1,4) IN ('M510','M615','M515','M612')
if you are reading from file then this can help you
try{
InputStream inputStream = (InputStream) mnpMainBean.getUploadedBulk().getInputStream();
BufferedReader br = new BufferedReader(new InputStreamReader(inputStream));
String line;
//Ref:03
while ((line = br.readLine()) != null) {
if (line.matches("[A-Z],\\d,(\\d*,){2}(\\s*\\d*\\|\\d*:)+")) {
String[] splitRecord = line.split(",");
//do something
}
else{
br.close();
//error
return;
}
}
br.close();
}
}
catch (IOException ioExpception){
logger.logDebug("Exception " + ioExpception.getStackTrace());
}
If you know list size:
def SplitList(mylist, chunk_size):
return [mylist[offs:offs+chunk_size] for offs in range(0, len(mylist), chunk_size)]
If you don't (an iterator):
def IterChunks(sequence, chunk_size):
res = []
for item in sequence:
res.append(item)
if len(res) >= chunk_size:
yield res
res = []
if res:
yield res # yield the last, incomplete, portion
In the latter case, it can be rephrased in a more beautiful way if you can be sure that the sequence always contains a whole number of chunks of given size (i.e. there is no incomplete last chunk).
var test = {'red':'#FF0000', 'blue':'#0000FF'};_x000D_
delete test.blue; // or use => delete test['blue'];_x000D_
console.log(test);
_x000D_
this deletes test.blue
Try this.........
ProgressDialog pd1;
pd1=new ProgressDialog(<current context reference here>);
pd1.setMessage("Loading....");
pd1.setCancelable(false);
pd1.show();
To dismiss....
if(pd1!=null)
pd1.dismiss();
You can't sort a std::map
this way, because a the entries in the map are sorted by the key. If you want to sort by value, you need to create a new std::map
with swapped key and value.
map<long, double> testMap;
map<double, long> testMap2;
// Insert values from testMap to testMap2
// The values in testMap2 are sorted by the double value
Remember that the double keys need to be unique in testMap2
or use std::multimap
.
You can check out this post on SuperUser.
Word starts page numbering over for each new section by default.
I do it slightly differently than the post above that goes through the ribbon menus, but in both methods you have to go through the document to each section's beginning.
My method:
Format Page Numbers
Continue from Previous Section
radio button under Page numbering
I find this right-click method to be a little faster. Also, usually if I insert the page numbers first before I start making any new sections, this problem doesn't happen in the first place.
This question is old but here is another answer because it is useful fo others:
thread.sleep is not a good method for waiting, because usually it freezes the software until finishing its time, this function is better:
Imports VB = Microsoft.VisualBasic
Public Sub wait(ByVal seconds As Single)
Static start As Single
start = VB.Timer()
Do While VB.Timer() < start + seconds
System.Windows.Forms.Application.DoEvents()
Loop
End Sub
The above function waits for a specific time without freezing the software, however increases the CPU usage.
This function not only doesn't freeze the software, but also doesn't increase the CPU usage:
Private Sub wait(ByVal seconds As Integer)
For i As Integer = 0 To seconds * 100
System.Threading.Thread.Sleep(10)
Application.DoEvents()
Next
End Sub
Use:
$('#example').dataTable({
aLengthMenu: [
[25, 50, 100, 200, -1],
[25, 50, 100, 200, "All"]
],
iDisplayLength: -1
});
Or if using 1.10+
$('#example').dataTable({
paging: false
});
The option you should use is iDisplayLength:
$('#adminProducts').dataTable({
'iDisplayLength': 100
});
$('#table').DataTable({
"lengthMenu": [ [5, 10, 25, 50, -1], [5, 10, 25, 50, "All"] ]
});
It will Load by default all entries.
$('#example').dataTable({
aLengthMenu: [
[25, 50, 100, 200, -1],
[25, 50, 100, 200, "All"]
],
iDisplayLength: -1
});
Or if using 1.10+
$('#example').dataTable({
paging: false
});
If you want to load by default 25 not all do this.
$('#example').dataTable({
aLengthMenu: [
[25, 50, 100, 200, -1],
[25, 50, 100, 200, "All"]
],
});
I found that JToken.Parse incorrectly parses invalid JSON such as the following:
{
"Id" : ,
"Status" : 2
}
Paste the JSON string into http://jsonlint.com/ - it is invalid.
So I use:
public static bool IsValidJson(this string input)
{
input = input.Trim();
if ((input.StartsWith("{") && input.EndsWith("}")) || //For object
(input.StartsWith("[") && input.EndsWith("]"))) //For array
{
try
{
//parse the input into a JObject
var jObject = JObject.Parse(input);
foreach(var jo in jObject)
{
string name = jo.Key;
JToken value = jo.Value;
//if the element has a missing value, it will be Undefined - this is invalid
if (value.Type == JTokenType.Undefined)
{
return false;
}
}
}
catch (JsonReaderException jex)
{
//Exception in parsing json
Console.WriteLine(jex.Message);
return false;
}
catch (Exception ex) //some other exception
{
Console.WriteLine(ex.ToString());
return false;
}
}
else
{
return false;
}
return true;
}
For Python 3xx:
import time
for i in range(10):
time.sleep(0.2)
print ("\r Loading... {}".format(i)+str(i), end="")
Try this:
String hourMinute = DateTime.Now.ToString("HH:mm");
Now you will get the time in hour:minute format.
list out the installed packages in the virtualenv
step 1:
workon envname
step 2:
pip freeze
it will display the all installed packages and installed packages and versions
My Enum class definition below is Strongly typed, and very natural to use and define.
Definition:
class Fruit extends Enum {
static public $APPLE = 1;
static public $ORANGE = 2;
}
Fruit::initialize(); //Can also be called in autoloader
Switch over Enum
$myFruit = Fruit::$APPLE;
switch ($myFruit) {
case Fruit::$APPLE : echo "I like apples\n"; break;
case Fruit::$ORANGE : echo "I hate oranges\n"; break;
}
>> I like apples
Pass Enum as parameter (Strongly typed)
/** Function only accepts Fruit enums as input**/
function echoFruit(Fruit $fruit) {
echo $fruit->getName().": ".$fruit->getValue()."\n";
}
/** Call function with each Enum value that Fruit has */
foreach (Fruit::getList() as $fruit) {
echoFruit($fruit);
}
//Call function with Apple enum
echoFruit(Fruit::$APPLE)
//Will produce an error. This solution is strongly typed
echoFruit(2);
>> APPLE: 1
>> ORANGE: 2
>> APPLE: 1
>> Argument 1 passed to echoFruit() must be an instance of Fruit, integer given
Echo Enum as string
echo "I have an $myFruit\n";
>> I have an APPLE
Get Enum by integer
$myFruit = Fruit::getByValue(2);
echo "Now I have an $myFruit\n";
>> Now I have an ORANGE
Get Enum by Name
$myFruit = Fruit::getByName("APPLE");
echo "But I definitely prefer an $myFruit\n\n";
>> But I definitely prefer an APPLE
The Enum Class:
/**
* @author Torge Kummerow
*/
class Enum {
/**
* Holds the values for each type of Enum
*/
static private $list = array();
/**
* Initializes the enum values by replacing the number with an instance of itself
* using reflection
*/
static public function initialize() {
$className = get_called_class();
$class = new ReflectionClass($className);
$staticProperties = $class->getStaticProperties();
self::$list[$className] = array();
foreach ($staticProperties as $propertyName => &$value) {
if ($propertyName == 'list')
continue;
$enum = new $className($propertyName, $value);
$class->setStaticPropertyValue($propertyName, $enum);
self::$list[$className][$propertyName] = $enum;
} unset($value);
}
/**
* Gets the enum for the given value
*
* @param integer $value
* @throws Exception
*
* @return Enum
*/
static public function getByValue($value) {
$className = get_called_class();
foreach (self::$list[$className] as $propertyName=>&$enum) {
/* @var $enum Enum */
if ($enum->value == $value)
return $enum;
} unset($enum);
throw new Exception("No such enum with value=$value of type ".get_called_class());
}
/**
* Gets the enum for the given name
*
* @param string $name
* @throws Exception
*
* @return Enum
*/
static public function getByName($name) {
$className = get_called_class();
if (array_key_exists($name, static::$list[$className]))
return self::$list[$className][$name];
throw new Exception("No such enum ".get_called_class()."::\$$name");
}
/**
* Returns the list of all enum variants
* @return Array of Enum
*/
static public function getList() {
$className = get_called_class();
return self::$list[$className];
}
private $name;
private $value;
public function __construct($name, $value) {
$this->name = $name;
$this->value = $value;
}
public function __toString() {
return $this->name;
}
public function getValue() {
return $this->value;
}
public function getName() {
return $this->name;
}
}
Addition
You can ofcourse also add comments for IDEs
class Fruit extends Enum {
/**
* This comment is for autocomplete support in common IDEs
* @var Fruit A yummy apple
*/
static public $APPLE = 1;
/**
* This comment is for autocomplete support in common IDEs
* @var Fruit A sour orange
*/
static public $ORANGE = 2;
}
//This can also go to the autoloader if available.
Fruit::initialize();
local_settings.py, for django projects.
*~ for all projects.
I have just written an app which can make a call from a web page - I don't know if this is any use to you, but I include anyway:
in your onCreate you'll need to use a webview and assign a WebViewClient, as below:
browser = (WebView) findViewById(R.id.webkit);
browser.setWebViewClient(new InternalWebViewClient());
then handle the click on a phone number like this:
private class InternalWebViewClient extends WebViewClient {
@Override
public boolean shouldOverrideUrlLoading(WebView view, String url) {
if (url.indexOf("tel:") > -1) {
startActivity(new Intent(Intent.ACTION_DIAL, Uri.parse(url)));
return true;
} else {
return false;
}
}
}
Let me know if you need more pointers.
The div take the height of its parent, but since it has no content (expecpt for your divs) it will only be as height as its content.
You need to set the height of the body and html:
HTML:
<div class="block12">
<div class="block1">1</div>
<div class="block2">2</div>
</div>
<div class="block3">3</div>
CSS:
body, html {
width: 100%;
height: 100%;
margin: 0;
padding: 0;
}
.block12 {
width: 100%;
height: 50%;
background: yellow;
overflow: auto;
}
.block1, .block2 {
width: 50%;
height: 100%;
display: inline-block;
margin-right: -4px;
background: lightgreen;
}
.block2 { background: lightgray }
.block3 {
width: 100%;
height: 50%;
background: lightblue;
}
And a JSFiddle
COPY README.md package.json gulpfile.js __BUILD_NUMBER ./
or
COPY ["__BUILD_NUMBER", "README.md", "gulpfile", "another_file", "./"]
You can also use wildcard characters in the sourcefile specification. See the docs for a little more detail.
Directories are special! If you write
COPY dir1 dir2 ./
that actually works like
COPY dir1/* dir2/* ./
If you want to copy multiple directories (not their contents) under a destination directory in a single command, you'll need to set up the build context so that your source directories are under a common parent and then COPY
that parent.
Because in IE7 elem.attributes lists all possible attributes, not only the present ones, we have to test the attribute value. This plugin works in all major browsers:
(function($) {
$.fn.getAttributes = function () {
var elem = this,
attr = {};
if(elem && elem.length) $.each(elem.get(0).attributes, function(v,n) {
n = n.nodeName||n.name;
v = elem.attr(n); // relay on $.fn.attr, it makes some filtering and checks
if(v != undefined && v !== false) attr[n] = v
})
return attr
}
})(jQuery);
Usage:
var attribs = $('#some_id').getAttributes();
Interestingly array is randomly accessible by the index. And removing randomly an element may impact the indexes of other elements as well.
int remove_element(int*from, int total, int index) {
if((total - index - 1) > 0) {
memmove(from+i, from+i+1, sizeof(int)*(total-index-1));
}
return total-1; // return the new array size
}
Note that memcpy
will not work in this case because of the overlapping memory.
One of the efficient way (better than memory move) to remove one random element is swapping with the last element.
int remove_element(int*from, int total, int index) {
if(index != (total-1))
from[index] = from[total-1];
return total; // **DO NOT DECREASE** the total here
}
But the order is changed after the removal.
Again if the removal is done in loop operation then the reordering may impact processing. Memory move is one expensive alternative to keep the order while removing an array element. Another of the way to keep the order while in a loop is to defer the removal. It can be done by validity array of the same size.
int remove_element(int*from, int total, int*is_valid, int index) {
is_valid[index] = 0;
return total-1; // return the number of elements
}
It will create a sparse array. Finally, the sparse array can be made compact(that contains no two valid elements that contain invalid element between them) by doing some reordering.
int sparse_to_compact(int*arr, int total, int*is_valid) {
int i = 0;
int last = total - 1;
// trim the last invalid elements
for(; last >= 0 && !is_valid[last]; last--); // trim invalid elements from last
// now we keep swapping the invalid with last valid element
for(i=0; i < last; i++) {
if(is_valid[i])
continue;
arr[i] = arr[last]; // swap invalid with the last valid
last--;
for(; last >= 0 && !is_valid[last]; last--); // trim invalid elements
}
return last+1; // return the compact length of the array
}
The fastest way should be:
<%@ page import="java.util.Map" %>
Map<String, String[]> parameters = request.getParameterMap();
for (Map.Entry<String, String[]> entry : parameters.entrySet()) {
if (entry.getKey().startsWith("question")) {
String[] values = entry.getValue();
// etc.
Note that you can't do:
for (Map.Entry<String, String[]> entry :
request.getParameterMap().entrySet()) { // WRONG!
for reasons explained here.
An important difference is that some UARTs (16550 notably) will stop receiving characters immediately if their host instructs them to set DSR to be inactive. In contrast, characters will still be received if CTS is inactive. I believe that the intention here is that DSR indicates that the device is no longer listening and so sending any further characters is pointless, while CTS indicates that a buffer is getting full; the latter allows for a certain amount of 'skid' where the flow control line changed state between the DTE sampling it and the next character being transmitted. In (relatively) later devices that support a hardware FIFO it's possible that a number of characters could be transmitted after the DCE has set CTS to be inactive.
In my personal opinion trailing slashes are misused.
Basically the URL format came from the same UNIX format of files and folders, later on, on DOS systems, and finally, adapted for the web.
A typical URL for this book on a Unix-like operating system would be a file path such as file:///home/username/RomeoAndJuliet.pdf, identifying the electronic book saved in a file on a local hard disk.
Source: Wikipedia: Uniform Resource Identifier
Another good source to read: Wikipedia: URI Scheme
According to RFC 1738, which defined URLs in 1994, when resources contain references to other resources, they can use relative links to define the location of the second resource as if to say, "in the same place as this one except with the following relative path". It went on to say that such relative URLs are dependent on the original URL containing a hierarchical structure against which the relative link is based, and that the ftp, http, and file URL schemes are examples of some that can be considered hierarchical, with the components of the hierarchy being separated by "/".
Source: Wikipedia Uniform Resource Locator (URL)
Also:
That is the question we hear often. Onward to the answers! Historically, it’s common for URLs with a trailing slash to indicate a directory, and those without a trailing slash to denote a file:
http://example.com/foo/ (with trailing slash, conventionally a directory)
http://example.com/foo (without trailing slash, conventionally a file)
Source: Google WebMaster Central Blog - To slash or not to slash
Finally:
A slash at the end of the URL makes the address look "pretty".
A URL without a slash at the end and without an extension looks somewhat "weird".
You will never name your CSS file (for example) http://www.sample.com/stylesheet/ would you?
BUT I'm being a proponent of web best practices regardless of the environment. It can be wonky and unclear, just as you said about the URL with no ext.
You can simply use:
document.getElementById(button_id).innerText = 'Your text here';
If you want to use HTML formatting, use the innerHTML
property instead.
(Xcode 5) Well, after spending an hour I solved my issue. Even if you re-generate the provisioning file in Xcode 5, you should manually update your account. I only changed provisioning file in the Organizer tab that did not work, Xcode kept build with old provisioning file.
So go to
Xcode > Preferences > Accounts > View Details (Select your account)
Then refresh your provisioning files.
I realize this is a very old post, but I have had success using the JUCE library, which builds projects for the major IDE's like Xcode, VS, and Codeblocks and automatically builds VST/3, AU/v3, RTAS, and AAX.
The easiest way is to make the "button image" as a separate image. Then place it over the main image (using "style="position: absolute;". Assign the URL link to "button image". and smile :)
This one works pretty well with git-2.18.2 and can be launched from outside git target repository:
basename -s .git $(git --git-dir=/<project-path>/.git remote get-url origin)
You'll need to generate the SQL content dynamically:
declare @tablename varchar(50)
set @tablename = 'test'
declare @sql varchar(500)
set @sql = 'select * from ' + @tablename
exec (@sql)
You cannot do this:
vector<string> name(5); //error in these 2 lines
vector<int> val(5,0);
in a class outside of a method.
You can initialize the data members at the point of declaration, but not with ()
brackets:
class Foo {
vector<string> name = vector<string>(5);
vector<int> val{vector<int>(5,0)};
};
Before C++11, you need to declare them first, then initialize them e.g in a contructor
class Foo {
vector<string> name;
vector<int> val;
public:
Foo() : name(5), val(5,0) {}
};
Perhaps use plt.annotate:
import numpy as np
import matplotlib.pyplot as plt
N = 10
data = np.random.random((N, 4))
labels = ['point{0}'.format(i) for i in range(N)]
plt.subplots_adjust(bottom = 0.1)
plt.scatter(
data[:, 0], data[:, 1], marker='o', c=data[:, 2], s=data[:, 3] * 1500,
cmap=plt.get_cmap('Spectral'))
for label, x, y in zip(labels, data[:, 0], data[:, 1]):
plt.annotate(
label,
xy=(x, y), xytext=(-20, 20),
textcoords='offset points', ha='right', va='bottom',
bbox=dict(boxstyle='round,pad=0.5', fc='yellow', alpha=0.5),
arrowprops=dict(arrowstyle = '->', connectionstyle='arc3,rad=0'))
plt.show()
To make everything writable by the owner, read/execute by the group, and world executable:
chmod -R 0755
To make everything wide open:
chmod -R 0777
Point 1: Add require()
function calling line of code only in the app.js
file or main.js
file.
Point 2: Make sure the required package is installed by checking the pacakage.json
file. If not updated, run "npm i".
I have dealt with this at talkstats.com in posts 94, 101 & 103 found in the thread: Share Your Code. As others have said Rstudio may be a better way to go. I store these functions in my .Rprofile and actually use them a but to automatically block out lines of code quickly.
Not quite as nice as you were hoping for but may be an approach.
From the UIDevice
class:
As an example: [[UIDevice currentDevice] name];
The UIDevice is a class that provides information about the iPhone or iPod Touch device.
Some of the information provided by UIDevice is static, such as device name or system version.
source: http://servin.com/iphone/uidevice/iPhone-UIDevice.html
Offical Documentation: Apple Developer Documentation > UIDevice
Class Reference
I am late to the party though. But as personal I hate to write the whole line.
Instead, I use the following shortcuts in the .bash_profile file make sure to source .bash_profile the file after adding any new alias else it won't work.
alias pa="php artisan"
alias pu="vendor/bin/phpunit"
alias puf="vendor/bin/phpunit --filter"
Usage:
puf function_name
puf filename
If you use Visual Studio Code you can use the following package to make your tests breeze.
Package Name: Better PHPUnit
Link: https://marketplace.visualstudio.com/items?itemName=calebporzio.better-phpunit
You can then set the keybinding in the settings. I use Command + T binding in my MAC.
Now once you place your cursor on any function and then use the key binding then it will automatically run that single test.
If you need to run the whole class then place the cursor on top of the class and then use the key binding.
If you have any other things then always tweek with the Terminal
Happy Coding!
You select data like this:
$db = new PDO("...");
$statement = $db->prepare("select id from some_table where name = :name");
$statement->execute(array(':name' => "Jimbo"));
$row = $statement->fetch(); // Use fetchAll() if you want all results, or just iterate over the statement, since it implements Iterator
You insert in the same way:
$statement = $db->prepare("insert into some_other_table (some_id) values (:some_id)");
$statement->execute(array(':some_id' => $row['id']));
I recommend that you configure PDO to throw exceptions upon error. You would then get a PDOException
if any of the queries fail - No need to check explicitly. To turn on exceptions, call this just after you've created the $db
object:
$db = new PDO("...");
$db->setAttribute(PDO::ATTR_ERRMODE, PDO::ERRMODE_EXCEPTION);
When you push a new branch the first time use: >git push -u origin
After that, you can just type a shorter command: >git push
The first-time -u option created a persistent upstream tracking branch with your local branch.
You need to create an instance of the type that expose the Output
method:
static void Main(string[] args)
{
var DLL = Assembly.LoadFile(@"C:\visual studio 2012\Projects\ConsoleApplication1\ConsoleApplication1\DLL.dll");
var class1Type = DLL.GetType("DLL.Class1");
//Now you can use reflection or dynamic to call the method. I will show you the dynamic way
dynamic c = Activator.CreateInstance(class1Type);
c.Output(@"Hello");
Console.ReadLine();
}
None of the existing answers explain how to use npm with a PAC file. Some suggest downloading the PAC file, manually inspecting it, and choosing one of the "PROXY ..." strings. But this doesn't work if the PAC file needs to choose from multiple proxies, or if the PAC file contains complex logic to bypass proxies for certain URLs.
Also, some corporate proxies require NTLM authentication. CNTLM can handle authentication, but doesn't support PAC files.
An alternative is to use Alpaca, which executes the PAC file in a JavaScript VM, and performs NTLM authentication with the resulting proxy.
This should do it
old_string = "this is going to have a full stop. some written sstuff!"
k = old_string.rfind(".")
new_string = old_string[:k] + ". - " + old_string[k+1:]
You can just use find()
:
let first = array.find(Boolean);
Or if you want the first element even if it is falsy:
let first = array.find(e => true);
Going the extra mile:
If you care about readability but don't want to rely on numeric incidences you could add a first()
-function to Array.protoype
by defining it with Object?.define?Property()
which mitigates the pitfalls of modifying the built-in Array object prototype directly (explained here).
Performance is pretty good (find()
stops after the first element) but it isn't perfect or universally accessible (ES6 only). For more background read @Selays answer.
Object.defineProperty(Array.prototype, 'first', {
value() {
return this.find(e => true); // or this.find(Boolean)
}
});
Then to retrieve the first element you can do:
let array = ['a', 'b', 'c'];
array.first();
> 'a'
Snippet to see it in action:
Object.defineProperty(Array.prototype, 'first', {_x000D_
value() {_x000D_
return this.find(Boolean);_x000D_
}_x000D_
});_x000D_
_x000D_
console.log( ['a', 'b', 'c'].first() );
_x000D_
Normally you can configure Environment variables in Global properties in Configure System.
However for dynamic variables with shell substitution, you may want to create a script file in Jenkins HOME dir and execute it during the build. The SSH access is required. For example.
sudo su - jenkins
or sudo su - jenkins -s /bin/bash
Create a shell script, e.g.:
echo 'export VM_NAME="$JOB_NAME"' > ~/load_env.sh
echo "export AOEU=$(echo aoeu)" >> ~/load_env.sh
chmod 750 ~/load_env.sh
In Jenkins Build (Execute shell), invoke the script and its variables before anything else, e.g.
source ~/load_env.sh
$1
, $2
, $3
, ... are the positional parameters."$@"
is an array-like construct of all positional parameters, {$1, $2, $3 ...}
."$*"
is the IFS expansion of all positional parameters, $1 $2 $3 ...
.$#
is the number of positional parameters.$-
current options set for the shell.$$
pid of the current shell (not subshell).$_
most recent parameter (or the abs path of the command to start the current shell immediately after startup).$IFS
is the (input) field separator.$?
is the most recent foreground pipeline exit status.$!
is the PID of the most recent background command.$0
is the name of the shell or shell script.Most of the above can be found under Special Parameters in the Bash Reference Manual. There are all the environment variables set by the shell.
For a comprehensive index, please see the Reference Manual Variable Index.
You can do this with XSLT but I'm not sure about straight XPath.
<?xml version="1.0" encoding="UTF-8" standalone="yes"?>
<xsl:stylesheet version="1.0" xmlns:xsl="http://www.w3.org/1999/XSL/Transform">
<xsl:output method="xml" encoding="utf-8" indent="yes"
omit-xml-declaration="yes"/>
<xsl:template match="a/*[text()='tsr']">
<xsl:number value-of="position()"/>
</xsl:template>
<xsl:template match="text()"/>
</xsl:stylesheet>
What we do, is to create two tables for each multilingual object.
E.g. the first table contains only language-neutral data (primary key, etc.) and the second table contains one record per language, containing the localized data plus the ISO code of the language.
In some cases we add a DefaultLanguage field, so that we can fall-back to that language if no localized data is available for a specified language.
Example:
Table "Product":
----------------
ID : int
<any other language-neutral fields>
Table "ProductTranslations"
---------------------------
ID : int (foreign key referencing the Product)
Language : varchar (e.g. "en-US", "de-CH")
IsDefault : bit
ProductDescription : nvarchar
<any other localized data>
With this approach, you can handle as many languages as needed (without having to add additional fields for each new language).
Update (2014-12-14): please have a look at this answer, for some additional information about the implementation used to load multilingual data into an application.
Simple quick to solve this problem is using IcePick
First, setup the library in app/build.gradle
repositories {
maven {url "https://clojars.org/repo/"}
}
dependencies {
compile 'frankiesardo:icepick:3.2.0'
provided 'frankiesardo:icepick-processor:3.2.0'
}
Now, let's check this example below how to save state in Activity
public class ExampleActivity extends Activity {
@State String username; // This will be automatically saved and restored
@Override public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
Icepick.restoreInstanceState(this, savedInstanceState);
}
@Override public void onSaveInstanceState(Bundle outState) {
super.onSaveInstanceState(outState);
Icepick.saveInstanceState(this, outState);
}
}
It works for Activities, Fragments or any object that needs to serialize its state on a Bundle (e.g. mortar's ViewPresenters)
Icepick can also generate the instance state code for custom Views:
class CustomView extends View {
@State int selectedPosition; // This will be automatically saved and restored
@Override public Parcelable onSaveInstanceState() {
return Icepick.saveInstanceState(this, super.onSaveInstanceState());
}
@Override public void onRestoreInstanceState(Parcelable state) {
super.onRestoreInstanceState(Icepick.restoreInstanceState(this, state));
}
// You can put the calls to Icepick into a BaseCustomView and inherit from it
// All Views extending this CustomView automatically have state saved/restored
}
Have your tried using the 'return' keyword?
def rps():
return True
<head>
tags in a HTML page.A favicon (short for favorites icon), also known as a shortcut icon, website icon, URL icon, or bookmark icon is a 16×16 or 32×32 pixel square icon associated with a particular website or webpage.
.ico
image file that is either 16x16 pixels or 32x32 pixels. Then, in the web pages, add <link rel="shortcut icon" href="favicon.ico" type="image/x-icon">
to the <head>
element.VBScript doesn't have Try/Catch. (VBScript language reference. If it had Try, it would be listed in the Statements section.)
On Error Resume Next
is the only error handling in VBScript. Sorry. If you want try/catch, JScript is an option. It's supported everywhere that VBScript is and has the same capabilities.
Here is one way to do it:
List<String> duplicates = lst.GroupBy(x => x)
.Where(g => g.Count() > 1)
.Select(g => g.Key)
.ToList();
The GroupBy
groups the elements that are the same together, and the Where
filters out those that only appear once, leaving you with only the duplicates.
Late edit: there is an official plugin for Chart.js 2.7.0+
to do this: https://github.com/chartjs/chartjs-plugin-datalabels
Original answer:
You can loop through the points / bars onAnimationComplete and display the values
Preview
HTML
<canvas id="myChart1" height="300" width="500"></canvas>
<canvas id="myChart2" height="300" width="500"></canvas>
Script
var chartData = {
labels: ["January", "February", "March", "April", "May", "June"],
datasets: [
{
fillColor: "#79D1CF",
strokeColor: "#79D1CF",
data: [60, 80, 81, 56, 55, 40]
}
]
};
var ctx = document.getElementById("myChart1").getContext("2d");
var myLine = new Chart(ctx).Line(chartData, {
showTooltips: false,
onAnimationComplete: function () {
var ctx = this.chart.ctx;
ctx.font = this.scale.font;
ctx.fillStyle = this.scale.textColor
ctx.textAlign = "center";
ctx.textBaseline = "bottom";
this.datasets.forEach(function (dataset) {
dataset.points.forEach(function (points) {
ctx.fillText(points.value, points.x, points.y - 10);
});
})
}
});
var ctx = document.getElementById("myChart2").getContext("2d");
var myBar = new Chart(ctx).Bar(chartData, {
showTooltips: false,
onAnimationComplete: function () {
var ctx = this.chart.ctx;
ctx.font = this.scale.font;
ctx.fillStyle = this.scale.textColor
ctx.textAlign = "center";
ctx.textBaseline = "bottom";
this.datasets.forEach(function (dataset) {
dataset.bars.forEach(function (bar) {
ctx.fillText(bar.value, bar.x, bar.y - 5);
});
})
}
});
Fiddle - http://jsfiddle.net/uh9vw0ao/
One command to convert date time to Unix format and then to string
DateTime.strptime(Time.now.utc.to_i.to_s,'%s').strftime("%d %m %y")
Time.now.utc.to_i #Converts time from Unix format
DateTime.strptime(Time.now.utc.to_i.to_s,'%s') #Converts date and time from unix format to DateTime
finally strftime is used to format date
Example:
irb(main):034:0> DateTime.strptime("1410321600",'%s').strftime("%d %m %y")
"10 09 14"
The error says "The index is out of range". That means you were trying to index an object with a value that was not valid. If you have two books, and I ask you to give me your third book, you will look at me funny. This is the computer looking at you funny. You said - "create a collection". So it did. But initially the collection is empty: not only is there nothing in it - it has no space to hold anything. "It has no hands".
Then you said "the first element of the collection is now 'ItemID'". And the computer says "I never was asked to create space for a 'first item'." I have no hands to hold this item you are giving me.
In terms of your code, you created a view, but never specified the size. You need a
dataGridView1.ColumnCount = 5;
Before trying to access any columns. Modify
DataGridView dataGridView1 = new DataGridView();
dataGridView1.Columns[0].Name = "ItemID";
to
DataGridView dataGridView1 = new DataGridView();
dataGridView1.ColumnCount = 5;
dataGridView1.Columns[0].Name = "ItemID";
See http://msdn.microsoft.com/en-us/library/system.windows.forms.datagridview.columncount.aspx
ActiveSheet.Range("A10000").End(xlup).offset(1,0).Select
Did you try using t.Text
?
The answers didn't work for me with postgresql 9.1+
This is what I had to do (you can check more in the manual here)
UPDATE schema.TableA as A
SET "columnA" = "B"."columnB"
FROM schema.TableB as B
WHERE A.id = B.id;
You can omit the schema, if you are using the default schema for both tables.
Use np.array_split
:
Docstring:
Split an array into multiple sub-arrays.
Please refer to the ``split`` documentation. The only difference
between these functions is that ``array_split`` allows
`indices_or_sections` to be an integer that does *not* equally
divide the axis.
In [1]: import pandas as pd
In [2]: df = pd.DataFrame({'A' : ['foo', 'bar', 'foo', 'bar',
...: 'foo', 'bar', 'foo', 'foo'],
...: 'B' : ['one', 'one', 'two', 'three',
...: 'two', 'two', 'one', 'three'],
...: 'C' : randn(8), 'D' : randn(8)})
In [3]: print df
A B C D
0 foo one -0.174067 -0.608579
1 bar one -0.860386 -1.210518
2 foo two 0.614102 1.689837
3 bar three -0.284792 -1.071160
4 foo two 0.843610 0.803712
5 bar two -1.514722 0.870861
6 foo one 0.131529 -0.968151
7 foo three -1.002946 -0.257468
In [4]: import numpy as np
In [5]: np.array_split(df, 3)
Out[5]:
[ A B C D
0 foo one -0.174067 -0.608579
1 bar one -0.860386 -1.210518
2 foo two 0.614102 1.689837,
A B C D
3 bar three -0.284792 -1.071160
4 foo two 0.843610 0.803712
5 bar two -1.514722 0.870861,
A B C D
6 foo one 0.131529 -0.968151
7 foo three -1.002946 -0.257468]
So, I had the same issue and sadly just adding to the rules didn't work. I found out that accept: and extension: are not part of JQuery validate.js by default and it requires an additional-Methods.js plugin to make it work.
So for anyone else who followed this thread and it still didn't work, you can try adding additional-Methods.js to your tag in addition to the answer above and it should work.
SELECT column_Name1,column_name2,......
From tbl_name1,tbl_name2,tbl_name3
where tbl_name1.column_name = tbl_name2.column_name
and tbl_name2.column_name = tbl_name3.column_name
Have you tried using the !important flag on the style? !important allows you to decide which style will win out. Also note !important will override inline styles as well.
#example p {
color: blue !important;
}
...
#example p {
color: red;
}
Another couple suggestions:
Add a span inside of the current. The inner most will win out. Although this could get pretty ugly.
<span class="style21">
<span style="position:absolute;top:432px;left:422px; color:Red" >relating to</span>
</span>
jQuery is also an option. The jQuery library will inject the style attribute in the targeted element.
<script src="http://ajax.googleapis.com/ajax/libs/jquery/1.4.1/jquery.min.js" type="text/javascript" ></script>
<script type="text/javascript">
$(document).ready(function() {
$("span").css("color", "#ff0000");
});
</script>
Hope this helps. CSS can be pretty frustrating at times.
You can reset your branch to the state it was in just before the merge if you find the commit it was on then.
One way is to use git reflog
, it will list all the HEADs you've had.
I find that git reflog --relative-date
is very useful as it shows how long ago each change happened.
Once you find that commit just do a git reset --hard <commit id>
and your branch will be as it was before.
If you have SourceTree, you can look up the <commit id>
there if git reflog
is too overwhelming.
In my case I had a varchar column, both the methods of IS NOT NULL
& != ''
didn't work, but the following worked for me. Just putting this out here.
SELECT * FROM `db_name` WHERE `column_name` LIKE '%*%'
First configure in table:
const routes: Routes = [
{
path: 'class/:id/enrollment/:guid',
component: ClassEnrollmentComponent
}
];
now in type script code:
this.router.navigate([`class/${classId}/enrollment/${4545455}`]);
receive params in another component
this.activatedRoute.params.subscribe(params => {
let id = params['id'];
let guid = params['guid'];
console.log(`${id},${guid}`);
});
If you are looking to copy all the text files in one folder to merge and copy to another folder, you can do this to achieve that:
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.IO;
namespace HowToCopyTextFiles
{
class Program
{
static void Main(string[] args)
{
string mydocpath=Environment.GetFolderPath(Environment.SpecialFolder.MyDocuments);
StringBuilder sb = new StringBuilder();
foreach (string txtName in Directory.GetFiles(@"D:\Links","*.txt"))
{
using (StreamReader sr = new StreamReader(txtName))
{
sb.AppendLine(txtName.ToString());
sb.AppendLine("= = = = = =");
sb.Append(sr.ReadToEnd());
sb.AppendLine();
sb.AppendLine();
}
}
using (StreamWriter outfile=new StreamWriter(mydocpath + @"\AllTxtFiles.txt"))
{
outfile.Write(sb.ToString());
}
}
}
}
The volume it's on is mounted noexec
.
Try http://www.jsonschema2pojo.org
Or the jsonschema2pojo plug-in for Maven:
<plugin>
<groupId>org.jsonschema2pojo</groupId>
<artifactId>jsonschema2pojo-maven-plugin</artifactId>
<version>1.0.2</version>
<configuration>
<sourceDirectory>${basedir}/src/main/resources/schemas</sourceDirectory>
<targetPackage>com.myproject.jsonschemas</targetPackage>
<sourceType>json</sourceType>
</configuration>
<executions>
<execution>
<goals>
<goal>generate</goal>
</goals>
</execution>
</executions>
</plugin>
The <sourceType>json</sourceType>
covers the case where the sources are json (like the OP). If you have actual json schemas, remove this line.
Updated in 2014: Two things have happened since Dec '09 when this question was asked:
The JSON Schema spec has moved on a lot. It's still in draft (not finalised) but it's close to completion and is now a viable tool specifying your structural rules
I've recently started a new open source project specifically intended to solve your problem: jsonschema2pojo. The jsonschema2pojo tool takes a json schema document and generates DTO-style Java classes (in the form of .java source files). The project is not yet mature but already provides coverage of the most useful parts of json schema. I'm looking for more feedback from users to help drive the development. Right now you can use the tool from the command line or as a Maven plugin.
Hope this helps!
In MVC you should provide the View with all data, not let the View collect its own data so what you can do is to set the CSS class in your controller action.
ViewData["CssClass"] = "bold";
and pick out this value from your ViewData in your View
If you have some params, you can do this.
$results = DB::table('rooms')
->distinct()
->leftJoin('bookings', function($join) use ($param1, $param2)
{
$join->on('rooms.id', '=', 'bookings.room_type_id');
$join->on('arrival','=',DB::raw("'".$param1."'"));
$join->on('arrival','=',DB::raw("'".$param2."'"));
})
->where('bookings.room_type_id', '=', NULL)
->get();
and then return your query
return $results;
$('#edit_user_details').find('select').trigger('change');
It would change the select html tag drop-down item with id="edit_user_details"
.
If you are displaying child form as a modal dialog box, you can set DialogResult property of child form with a value from the DialogResult enumeration which in turn hides the modal dialog box, and returns control to the calling form. At this time parent can access child form's data to get the info that it need.
For more info check this link: http://msdn.microsoft.com/en-us/library/system.windows.forms.form.dialogresult(v=vs.110).aspx
It seems that your configuration is using the print
option for numpy.seterr
:
>>> import numpy as np
>>> np.array([1])/0 #'warn' mode
__main__:1: RuntimeWarning: divide by zero encountered in divide
array([0])
>>> np.seterr(all='print')
{'over': 'warn', 'divide': 'warn', 'invalid': 'warn', 'under': 'ignore'}
>>> np.array([1])/0 #'print' mode
Warning: divide by zero encountered in divide
array([0])
This means that the warning you see is not a real warning, but it's just some characters printed to stdout
(see the documentation for seterr
). If you want to catch it you can:
numpy.seterr(all='raise')
which will directly raise the exception. This however changes the behaviour of all the operations, so it's a pretty big change in behaviour.numpy.seterr(all='warn')
, which will transform the printed warning in a real warning and you'll be able to use the above solution to localize this change in behaviour.Once you actually have a warning, you can use the warnings
module to control how the warnings should be treated:
>>> import warnings
>>>
>>> warnings.filterwarnings('error')
>>>
>>> try:
... warnings.warn(Warning())
... except Warning:
... print 'Warning was raised as an exception!'
...
Warning was raised as an exception!
Read carefully the documentation for filterwarnings
since it allows you to filter only the warning you want and has other options. I'd also consider looking at catch_warnings
which is a context manager which automatically resets the original filterwarnings
function:
>>> import warnings
>>> with warnings.catch_warnings():
... warnings.filterwarnings('error')
... try:
... warnings.warn(Warning())
... except Warning: print 'Raised!'
...
Raised!
>>> try:
... warnings.warn(Warning())
... except Warning: print 'Not raised!'
...
__main__:2: Warning:
AFAIK the simplest solution is:
df_shuffled = df.reindex(np.random.permutation(df.index))
fmod(x, y)
is the function you use.
By default, nvarchar(MAX) values are stored exactly the same as nvarchar(4000) values would be, unless the actual length exceed 4000 characters; in that case, the in-row data is replaced by a pointer to one or more seperate pages where the data is stored.
If you anticipate data possibly exceeding 4000 character, nvarchar(MAX) is definitely the recommended choice.
Option 1: Using Windows PowerShell
Open the windows menu. Type: "PowerShell" and open the 'Windows PowerShell' command window.
Goto folder with desired files: e.g. cd "C:\house chores" Notice: address must incorporate quotes "" if there are spaces involved.
You can use 'dir' to see all the files in the folder. Using '|' will pipeline the output of 'dir' for the command that follows.
Notes: 'dir' is an alias of 'Get-ChildItem'. See: wiki: cmdlets. One can provide further functionality. e.g. 'dir -recurse' outputs all the files, folders and sub-folders.
What if I only want a range of files?
Instead of 'dir |' I can use:
dir | where-object -filterscript {($_.Name -ge 'DSC_20') -and ($_.Name -le 'DSC_31')} |
For batch-renaming with the directory name as a prefix:
dir | Rename-Item -NewName {$_.Directory.Name + " - " + $_.Name}
Option 2: Using Command Prompt
In the folder press shift+right-click : select 'open command-window here'
for %a in (*.*) do ren "%a" "prefix - %a"
If there are a lot of files, it might be good to add an '@echo off' command before this and an 'echo on' command at the end.
The thing about collations is that although the database has its own collation, every table, and every column can have its own collation. If not specified it takes the default of its parent object, but can be different.
When you change collation of the database, it will be the new default for all new tables and columns, but it doesn't change the collation of existing objects inside the database. You have to go and change manually the collation of every table and column.
Luckily there are scripts available on the internet that can do the job. I am not going to recommend any as I haven't tried them but here are few links:
http://www.codeproject.com/Articles/302405/The-Easy-way-of-changing-Collation-of-all-Database
Update Collation of all fields in database on the fly
http://www.sqlservercentral.com/Forums/Topic820675-146-1.aspx
If you need to have different collation on two objects or can't change collations - you can still JOIN
between them using COLLATE
command, and choosing the collation you want for join.
SELECT * FROM A JOIN B ON A.Text = B.Text COLLATE Latin1_General_CI_AS
or using default database collation:
SELECT * FROM A JOIN B ON A.Text = B.Text COLLATE DATABASE_DEFAULT
For a svn+ssh configuration, use ssh to run svnserve --version on the host machine:
$ ssh user@host svnserve --version
It is necessary to run the svnserve command on the machine that is actually serving as the server.