string decodedUrl = Uri.UnescapeDataString(url)
or
string decodedUrl = HttpUtility.UrlDecode(url)
Url is not fully decoded with one call. To fully decode you can call one of this methods in a loop:
private static string DecodeUrlString(string url) {
string newUrl;
while ((newUrl = Uri.UnescapeDataString(url)) != url)
url = newUrl;
return newUrl;
}
I don't have enough rep to put this under comments to the existing answers:
unescape
is only deprecated for working with URIs (or any encoded utf-8) which is probably the case for most people's needs. encodeURIComponent
converts a js string to escaped UTF-8 and decodeURIComponent
only works on escaped UTF-8 bytes. It throws an error for something like decodeURIComponent('%a9'); // error
because extended ascii isn't valid utf-8 (even though that's still a unicode value), whereas unescape('%a9'); // ©
So you need to know your data when using decodeURIComponent.
decodeURIComponent won't work on "%C2"
or any lone byte over 0x7f
because in utf-8 that indicates part of a surrogate. However decodeURIComponent("%C2%A9") //gives you ©
Unescape wouldn't work properly on that // ©
AND it wouldn't throw an error, so unescape can lead to buggy code if you don't know your data.
[Necromancer mode on]
Stumbled upon this question when was looking for fast, modern, platform independent and elegant solution. Didnt like any of above, cpp-netlib would be the winner but it has horrific memory vulnerability in "decoded" function. So I came up with boost's spirit qi/karma solution.
namespace bsq = boost::spirit::qi;
namespace bk = boost::spirit::karma;
bsq::int_parser<unsigned char, 16, 2, 2> hex_byte;
template <typename InputIterator>
struct unescaped_string
: bsq::grammar<InputIterator, std::string(char const *)> {
unescaped_string() : unescaped_string::base_type(unesc_str) {
unesc_char.add("+", ' ');
unesc_str = *(unesc_char | "%" >> hex_byte | bsq::char_);
}
bsq::rule<InputIterator, std::string(char const *)> unesc_str;
bsq::symbols<char const, char const> unesc_char;
};
template <typename OutputIterator>
struct escaped_string : bk::grammar<OutputIterator, std::string(char const *)> {
escaped_string() : escaped_string::base_type(esc_str) {
esc_str = *(bk::char_("a-zA-Z0-9_.~-") | "%" << bk::right_align(2,0)[bk::hex]);
}
bk::rule<OutputIterator, std::string(char const *)> esc_str;
};
The usage of above as following:
std::string unescape(const std::string &input) {
std::string retVal;
retVal.reserve(input.size());
typedef std::string::const_iterator iterator_type;
char const *start = "";
iterator_type beg = input.begin();
iterator_type end = input.end();
unescaped_string<iterator_type> p;
if (!bsq::parse(beg, end, p(start), retVal))
retVal = input;
return retVal;
}
std::string escape(const std::string &input) {
typedef std::back_insert_iterator<std::string> sink_type;
std::string retVal;
retVal.reserve(input.size() * 3);
sink_type sink(retVal);
char const *start = "";
escaped_string<sink_type> g;
if (!bk::generate(sink, g(start), input))
retVal = input;
return retVal;
}
[Necromancer mode off]
EDIT01: fixed the zero padding stuff - special thanks to Hartmut Kaiser
EDIT02: Live on CoLiRu
//How decodeURIComponent Works
function proURIDecoder(val)
{
val=val.replace(/\+/g, '%20');
var str=val.split("%");
var cval=str[0];
for (var i=1;i<str.length;i++)
{
cval+=String.fromCharCode(parseInt(str[i].substring(0,2),16))+str[i].substring(2);
}
return cval;
}
document.write(proURIDecoder(window.location.href));
The data is UTF-8 encoded bytes escaped with URL quoting, so you want to decode, with urllib.parse.unquote()
, which handles decoding from percent-encoded data to UTF-8 bytes and then to text, transparently:
from urllib.parse import unquote
url = unquote(url)
Demo:
>>> from urllib.parse import unquote
>>> url = 'example.com?title=%D0%BF%D1%80%D0%B0%D0%B2%D0%BE%D0%B2%D0%B0%D1%8F+%D0%B7%D0%B0%D1%89%D0%B8%D1%82%D0%B0'
>>> unquote(url)
'example.com?title=????????+??????'
The Python 2 equivalent is urllib.unquote()
, but this returns a bytestring, so you'd have to decode manually:
from urllib import unquote
url = unquote(url).decode('utf8')
(Edited) Rounding integers with floating point is the easiest solution to this problem; however, depending on the problem set is may be possible. For example, in embedded systems the floating point solution may be too costly.
Doing this using integer math turns out to be kind of hard and a little unintuitive. The first posted solution worked okay for the the problem I had used it for but after characterizing the results over the range of integers it turned out to be very bad in general. Looking through several books on bit twiddling and embedded math return few results. A couple of notes. First, I only tested for positive integers, my work does not involve negative numerators or denominators. Second, and exhaustive test of 32 bit integers is computational prohibitive so I started with 8 bit integers and then mades sure that I got similar results with 16 bit integers.
I started with the 2 solutions that I had previously proposed:
#define DIVIDE_WITH_ROUND(N, D) (((N) == 0) ? 0:(((N * 10)/D) + 5)/10)
#define DIVIDE_WITH_ROUND(N, D) (N == 0) ? 0:(N - D/2)/D + 1;
My thought was that the first version would overflow with big numbers and the second underflow with small numbers. I did not take 2 things into consideration. 1.) the 2nd problem is actually recursive since to get the correct answer you have to properly round D/2. 2.) In the first case you often overflow and then underflow, the two canceling each other out. Here is an error plot of the two (incorrect) algorithms:
This plot shows that the first algorithm is only incorrect for small denominators (0 < d < 10). Unexpectedly it actually handles large numerators better than the 2nd version.
Here is a plot of the 2nd algorithm:
As expected it fails for small numerators but also fails for more large numerators than the 1st version.
Clearly this is the better starting point for a correct version:
#define DIVIDE_WITH_ROUND(N, D) (((N) == 0) ? 0:(((N * 10)/D) + 5)/10)
If your denominators is > 10 then this will work correctly.
A special case is needed for D == 1, simply return N. A special case is needed for D== 2, = N/2 + (N & 1) // Round up if odd.
D >= 3 also has problems once N gets big enough. It turns out that larger denominators only have problems with larger numerators. For 8 bit signed number the problem points are
if (D == 3) && (N > 75))
else if ((D == 4) && (N > 100))
else if ((D == 5) && (N > 125))
else if ((D == 6) && (N > 150))
else if ((D == 7) && (N > 175))
else if ((D == 8) && (N > 200))
else if ((D == 9) && (N > 225))
else if ((D == 10) && (N > 250))
(return D/N for these)
So in general the the pointe where a particular numerator gets bad is somewhere around
N > (MAX_INT - 5) * D/10
This is not exact but close. When working with 16 bit or bigger numbers the error < 1% if you just do a C divide (truncation) for these cases.
For 16 bit signed numbers the tests would be
if ((D == 3) && (N >= 9829))
else if ((D == 4) && (N >= 13106))
else if ((D == 5) && (N >= 16382))
else if ((D == 6) && (N >= 19658))
else if ((D == 7) && (N >= 22935))
else if ((D == 8) && (N >= 26211))
else if ((D == 9) && (N >= 29487))
else if ((D == 10) && (N >= 32763))
Of course for unsigned integers MAX_INT would be replaced with MAX_UINT. I am sure there is an exact formula for determining the largest N that will work for a particular D and number of bits but I don't have any more time to work on this problem...
(I seem to be missing this graph at the moment, I will edit and add later.)
This is a graph of the 8 bit version with the special cases noted above:![8 bit signed with special cases for 0 < N <= 10
3
Note that for 8 bit the error is 10% or less for all errors in the graph, 16 bit is < 0.1%.
use \r\n
combination to append a new line in node js
var stream = fs.createWriteStream("udp-stream.log", {'flags': 'a'});
stream.once('open', function(fd) {
stream.write(msg+"\r\n");
});
To add the privileges needed to the files add and grant right to the following local user: SQLServerMSSQLUser$COMPUTERNAME$INSTANCENAME, where COMPUTERNAME and INSTANCENAME has to be replaced with name of computer and MSSQL instance respectively.
You could do something like this:
grd.DataSource = getDataSource();
if (grd.ColumnCount > 1)
{
for (int i = 0; i < grd.ColumnCount-1; i++)
grd.Columns[i].AutoSizeMode = DataGridViewAutoSizeColumnMode.AllCells;
grd.Columns[grd.ColumnCount-1].AutoSizeMode = DataGridViewAutoSizeColumnMode.Fill;
}
if (grd.ColumnCount==1)
grd.Columns[0].AutoSizeMode = DataGridViewAutoSizeColumnMode.Fill;
All columns will adapt to the content except the last one will fill the grid.
The multiline flag tells regex to match the pattern to each line as opposed to the entire string for your purposes a wild card will suffice.
JFrame
is the window; it can have one or more JPanel
instances inside it. JPanel
is not the window.
You need a Swing tutorial:
If @Cybernate's solution doesn't work, try breaking the trigger off in to it's own function so you can reference it.
clickHandler = function(event){
if (click++ == 49)
canvas.removeEventListener('click',clickHandler);
}
canvas.addEventListener('click',clickHandler);
I did it like this:
li {
list-style: none;
background-image: url("./assets/img/control.svg");
background-repeat: no-repeat;
background-position: left center;
}
Or you can try this if you want to change the color:
li::before {
content: "";
display: inline-block;
height: 10px;
width: 10px;
margin-right: 7px;
background-color: orange;
-webkit-mask-image: url("./assets/img/control.svg");
-webkit-mask-size: cover;
}
aaa##HTML I would suggest you wrap them in a div, since you will likely end up floating them in certain contexts.
<div class="input-w">
<label for="your-input">Your label</label>
<input type="text" id="your-input" />
</div>
Then within that div, you can make each piece inline-block
so that you can use vertical-align
to center them - or set baseline etc. (your labels and input might change sizes in the future...
.input-w label, .input-w input {
float: none; /* if you had floats before? otherwise inline-block will behave differently */
display: inline-block;
vertical-align: middle;
}
This is how I do things these days.
<label class='input-w' for='this-input-name'>
<span class='label'>Your label</span>
<input class='input' type='text' id='this-input-name' placeholder='hello'>
</label>
<label class='input-w' for='this-other-input-name'>
<span class='label'>Your label</span>
<input class='input' type='text' id='this-other-input-name' placeholder='again'>
</label>
html { // https://www.paulirish.com/2012/box-sizing-border-box-ftw/
box-sizing: border-box;
*, *:before, *:after {
box-sizing: inherit;
}
} // if you don't already reset your box-model, read about it
.input-w {
display: block;
width: 100%; // should be contained by a form or something
margin-bottom: 1rem;
@media (min-width: 500px) {
display: flex;
flex-direction: row;
align-items: center;
}
.label, .input {
display: block;
width: 100%;
border: 1px solid rgba(0,0,0,.1);
@media (min-width: 500px) {
width: auto;
display: flex;
}
}
.label {
font-size: 13px;
@media (min-width: 500px) {
/* margin-right: 1rem; */
min-width: 100px; // maybe to match many?
}
}
.input {
padding: .5rem;
font-size: 16px;
@media (min-width: 500px) {
flex-grow: 1;
max-width: 450px; // arbitrary
}
}
}
There are many answers already that tell you how to make a proper copy, but none of them say why your original 'copy' failed.
Python doesn't store values in variables; it binds names to objects. Your original assignment took the object referred to by my_list
and bound it to new_list
as well. No matter which name you use there is still only one list, so changes made when referring to it as my_list
will persist when referring to it as new_list
. Each of the other answers to this question give you different ways of creating a new object to bind to new_list
.
Each element of a list acts like a name, in that each element binds non-exclusively to an object. A shallow copy creates a new list whose elements bind to the same objects as before.
new_list = list(my_list) # or my_list[:], but I prefer this syntax
# is simply a shorter way of:
new_list = [element for element in my_list]
To take your list copy one step further, copy each object that your list refers to, and bind those element copies to a new list.
import copy
# each element must have __copy__ defined for this...
new_list = [copy.copy(element) for element in my_list]
This is not yet a deep copy, because each element of a list may refer to other objects, just like the list is bound to its elements. To recursively copy every element in the list, and then each other object referred to by each element, and so on: perform a deep copy.
import copy
# each element must have __deepcopy__ defined for this...
new_list = copy.deepcopy(my_list)
See the documentation for more information about corner cases in copying.
javascript's parseFloat doesn't take a locale parameter. So you will have to replace ,
with .
parseFloat('0,04'.replace(/,/, '.')); // 0.04
I came across a solution today that does not appear to be here already and which seems to work quite well so far. The accepted answer does not work as-is on IE10 but this one does. http://codepen.io/vithun/pen/yDsjf/ credit to the author of course!
.pipe-separated-list-container {_x000D_
overflow-x: hidden;_x000D_
}_x000D_
.pipe-separated-list-container ul {_x000D_
list-style-type: none;_x000D_
position: relative;_x000D_
left: -1px;_x000D_
padding: 0;_x000D_
}_x000D_
.pipe-separated-list-container ul li {_x000D_
display: inline-block;_x000D_
line-height: 1;_x000D_
padding: 0 1em;_x000D_
margin-bottom: 1em;_x000D_
border-left: 1px solid;_x000D_
}
_x000D_
<div class="pipe-separated-list-container">_x000D_
<ul>_x000D_
<li>One</li>_x000D_
<li>Two</li>_x000D_
<li>Three</li>_x000D_
<li>Four</li>_x000D_
<li>Five</li>_x000D_
<li>Six</li>_x000D_
<li>Seven</li>_x000D_
<li>Eight</li>_x000D_
<li>Nine</li>_x000D_
<li>Ten</li>_x000D_
<li>Eleven</li>_x000D_
<li>Twelve</li>_x000D_
<li>Thirteen</li>_x000D_
<li>Fourteen</li>_x000D_
<li>Fifteen</li>_x000D_
<li>Sixteen</li>_x000D_
<li>Seventeen</li>_x000D_
<li>Eighteen</li>_x000D_
<li>Nineteen</li>_x000D_
<li>Twenty</li>_x000D_
<li>Twenty One</li>_x000D_
<li>Twenty Two</li>_x000D_
<li>Twenty Three</li>_x000D_
<li>Twenty Four</li>_x000D_
<li>Twenty Five</li>_x000D_
<li>Twenty Six</li>_x000D_
<li>Twenty Seven</li>_x000D_
<li>Twenty Eight</li>_x000D_
<li>Twenty Nine</li>_x000D_
<li>Thirty</li>_x000D_
</ul>_x000D_
</div>
_x000D_
static string Search(string factMessage, string b)
{
int index = factMessage.IndexOf(b, StringComparison.CurrentCultureIgnoreCase);
string line = null;
int i = index;
if (i == -1)
{ return "not matched"; }
else
{
while (factMessage[i] != ' ')
{
line = line + factMessage[i];
i++;
}
return line;
}
}
Try this listeners=PLAINTEXT://localhost:9092 It must be helpful
Many thanks
In my case xxxx.pubxml.user was not loaded when tried to publish the application. I deleted the file and restart the Visual studio then created a new profile to publish it, problem is solved and published successfully.
Kbrose's guidance on finding which logger was generating log messages was immensely useful. For my Django project, I had to sort through 120 different loggers until I found that it was the elasticsearch
Python library that was causing issues for me. As per the guidance in most of the questions, I disabled it by adding this to my loggers:
...
'elasticsearch': {
'handlers': ['console'],
'level': logging.WARNING,
},
...
Posting here in case someone else is seeing the unhelpful log messages come through whenever they run an Elasticsearch query.
This is a charset issue. As such, it can have gone wrong on many different levels, but most likely, the strings in your database are utf-8 encoded, and you are presenting them as iso-8859-1. Or the other way around.
The proper way to fix this problem, is to get your character-sets straight. The simplest strategy, since you're using PHP, is to use iso-8859-1 throughout your application. To do this, you must ensure that:
charset=iso-8859-1
header
.accept-charset
attribute on your <form>
elements.If you already have data in your database, you should be aware that they are probably messed up already. If you are not already in production phase, just wipe it all and start over. Otherwise you'll have to do some data cleanup.
When a web-server serves a file (A HTML-document), it sends some information, that isn't presented directly in the browser. This is known as HTTP-headers. One such header, is the Content-Type
header, which specifies the mimetype of the file (Eg. text/html
) as well as the encoding (aka charset).
While most webservers will send a Content-Type
header with charset
info, it's optional. If it isn't present, the browser will instead interpret any meta-tags with http-equiv="Content-Type"
. It's important to realise that the meta-tag is only interpreted if the webserver doesn't send the header. In practice this means that it's only used if the page is saved to disk and then opened from there.
This page has a very good explanation of these things.
update the rubygems
gem update --system
Try this from the box you are pushing from
ssh [email protected]
You should then get a welcome response from github and will be fine to then push.
Check out this one:
https://github.com/VBA-tools/VBA-Web
It's a high level library for dealing with REST. It's OOP, works with JSON, but also works with any other format.
Simply select 'Update Application' after clicking on the settings symbol(top right corner) for Spyder in the Anaconda Navigator console. In my case I just updated it so it's in disabled state.
This problem can be solved with a list of map entry List<Map.Entry<K,V>>
. We don't need to use neither external libraries nor new implementation of Map. A map entry can be created like this:
Map.Entry<String, Integer> entry = new AbstractMap.SimpleEntry<String, Integer>("key", 1);
I had the same problem before after tried to upgrade tensorflow, I solved it by reinstalling Tensorflow and Keras.
pip uninstall tensorflow
pip uninstall keras
Then:
pip install tensorflow
pip install keras
I had exactly the same problem. Just one more working modification of the solution given by Denis (the type must be specified):
SELECT ARRAY(
SELECT column_name::text
FROM information_schema.columns
WHERE table_name='aean'
)
There's a bit more to it than just local vs global. Global variables created with var
are different than those created without. Consider this:
var foo = 1; // declared properly
bar = 2; // implied global
window.baz = 3; // global via window object
Based on the answers so far, these global variables, foo
, bar
, and baz
are all equivalent. This is not the case. Global variables made with var
are (correctly) assigned the internal [[DontDelete]]
property, such that they cannot be deleted.
delete foo; // false
delete bar; // true
delete baz; // true
foo; // 1
bar; // ReferenceError
baz; // ReferenceError
This is why you should always use var
, even for global variables.
To update and answer the question without breaking mail servers. Later versions of CentOS 7 have MariaDB included as the base along with PostFix which relies on MariaDB. Removing using yum will also remove postfix and perl-DBD-MySQL. To get around this and keep postfix in place, first make a copy of /usr/lib64/libmysqlclient.so.18 (which is what postfix depends on) and then use:
rpm -qa | grep mariadb
then remove the mariadb packages using (changing to your versions):
rpm -e --nodeps "mariadb-libs-5.5.56-2.el7.x86_64"
rpm -e --nodeps "mariadb-server-5.5.56-2.el7.x86_64"
rpm -e --nodeps "mariadb-5.5.56-2.el7.x86_64"
Delete left over files and folders (which also removes any databases):
rm -f /var/log/mariadb
rm -f /var/log/mariadb/mariadb.log.rpmsave
rm -rf /var/lib/mysql
rm -rf /usr/lib64/mysql
rm -rf /usr/share/mysql
Put back the copy of /usr/lib64/libmysqlclient.so.18 you made at the start and you can restart postfix.
There is more detail at https://code.trev.id.au/centos-7-remove-mariadb-replace-mysql/ which describes how to replace mariaDB with MySQL
In html
button ng-click="myMethod()">Videos</button>
In angular
$scope.myMethod = function () {
$(".collapse").collapse('hide'); //if you want to hide
$(".collapse").collapse('toggle'); //if you want toggle
$(".collapse").collapse('show'); //if you want to show
}
$file = '../image.jpg';
if (file_exists($file))
{
$size = getimagesize($file);
$fp = fopen($file, 'rb');
if ($size and $fp)
{
// Optional never cache
// header('Cache-Control: no-cache, no-store, max-age=0, must-revalidate');
// header('Expires: Mon, 26 Jul 1997 05:00:00 GMT'); // Date in the past
// header('Pragma: no-cache');
// Optional cache if not changed
// header('Last-Modified: '.gmdate('D, d M Y H:i:s', filemtime($file)).' GMT');
// Optional send not modified
// if (isset($_SERVER['HTTP_IF_MODIFIED_SINCE']) and
// filemtime($file) == strtotime($_SERVER['HTTP_IF_MODIFIED_SINCE']))
// {
// header('HTTP/1.1 304 Not Modified');
// }
header('Content-Type: '.$size['mime']);
header('Content-Length: '.filesize($file));
fpassthru($fp);
exit;
}
}
Break out the LIKE
clauses into 2 separate statements, i.e.:
(fieldname1 LIKE '%this%' or fieldname1 LIKE '%that%' ) and something=else
My solution was to use a short nickname (less than 31 characters) and then write the entire name in cell 0.
Quite simple:
$input = array(
array(
'tag_name' => 'google'
),
array(
'tag_name' => 'technology'
)
);
echo implode(', ', array_map(function ($entry) {
return $entry['tag_name'];
}, $input));
and new in php v5.5.0, array_column
:
echo implode(', ', array_column($input, 'tag_name'));
Use a digit place holder (0
), as with '#
' trailing/leading zeros show as absent:
DecimalFormat twoDForm = new DecimalFormat("#.00");
Just an update to this - I've been having a similar problem updating the action attribute of a form with jQuery.
After some testing it turns out that the command: $('#myForm').attr('action','new_url.html');
silently fails if the action attribute of the form is empty. If i update the action attribute of my form to contain some text, the jquery works.
Your dot is matching all characters. Escape it (and the other special characters), like this:
preg_replace('/[^a-zA-Z0-9_ %\[\]\.\(\)%&-]/s', '', $String);
Most regular expression engines support "counter part" escape sequences. That is, for \s
(white-space) there's its counter part \S
(non-white-space).
Using this, you can check, if there is at least one non-white-space character with ^\S+$
.
PCRE for PHP has several of these escape sequences.
-XX:PermSize
specifies the initial size that will be allocated during startup of the JVM. If necessary, the JVM will allocate up to -XX:MaxPermSize
.
May be this is alltime multiple connection open issue, you are somewhere in your code opening connections and not closing them properly. use
using (SqlConnection con = new SqlConnection(connectionString))
{
con.Open();
}
Refer this article: http://msdn.microsoft.com/en-us/library/ms254507(v=vs.80).aspx, The Using block in Visual Basic or C# automatically disposes of the connection when the code exits the block, even in the case of an unhandled exception.
Maybe you're missing some plugins, try:
npm i --save-dev babel-plugin-transform-vue-jsx
npm i --save-dev babel-plugin-transform-runtime
npm i --save-dev babel-plugin-syntax-dynamic-import
Maybe the best way to answer the questions like "which version is faster and which one shall I use?" is to look to the source code:
map.forEach() - from Map.java
default void forEach(BiConsumer<? super K, ? super V> action) {
Objects.requireNonNull(action);
for (Map.Entry<K, V> entry : entrySet()) {
K k;
V v;
try {
k = entry.getKey();
v = entry.getValue();
} catch(IllegalStateException ise) {
// this usually means the entry is no longer in the map.
throw new ConcurrentModificationException(ise);
}
action.accept(k, v);
}
}
map.entrySet().forEach() - from Iterable.java
default void forEach(Consumer<? super T> action) {
Objects.requireNonNull(action);
for (T t : this) {
action.accept(t);
}
}
This immediately reveals that map.forEach() is also using Map.Entry internally. So I would not expect any performance benefit in using map.forEach() over the map.entrySet().forEach(). So in your case the answer really depends on your personal taste :)
For the complete list of differences please refer to the provided javadoc links. Happy coding!
`My vbs file path :
D:\QTP Practice\Driver\Testany.vbs'
objShell = CreateObject("Shell.Application")
objShell.ShellExecute "cmd.exe","/k echo test", "", "runas", 1
set x=createobject("wscript.shell")
wscript.sleep(2000)
x.sendkeys "CD\"&"{ENTER}"&"cd D:"&"{ENTER}"&"cd "&"QTP Practice\Driver"&"{ENTER}"&"Testany.vbs"&"{ENTER}"
--from google search and some tuning, working for me
To be safe you don't break stuff (for example when these strings are changed in your code or further up), or crash you program (in case the returned string was literal for example like "hello I'm a literal string"
and you start to edit it), make a copy of the returned string.
You could use strdup()
for this, but read the small print. Or you can of course create your own version if it's not there on your platform.
A late entry...
To test whether or not the IIS Application gets started before the debugger has had enough time to attach just add this to the top or bottom of your GLOBAL.ASAX's Application_Start
.
throw new ApplicationException("Yup, it fired");
None of these worked for me.
My class libraries were definitely all referencing both System.Core and Microsoft.CSharp. Web Application was 4.0 and couldn't upgrade to 4.5 due to support issues.
I was encountering the error compiling a razor template using the Razor Engine, and only encountering it intermittently, like after web application has been restarted.
The solution that worked for me was manually loading the assembly then reattempting the same operation...
bool retry = true;
while (retry)
{
try
{
string textTemplate = File.ReadAllText(templatePath);
Razor.CompileWithAnonymous(textTemplate, templateFileName);
retry = false;
}
catch (TemplateCompilationException ex)
{
LogTemplateException(templatePath, ex);
retry = false;
if (ex.Errors.Any(e => e.ErrorNumber == "CS1969"))
{
try
{
_logger.InfoFormat("Attempting to manually load the Microsoft.CSharp.RuntimeBinder.Binder");
Assembly csharp = Assembly.Load("Microsoft.CSharp, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a");
Type type = csharp.GetType("Microsoft.CSharp.RuntimeBinder.Binder");
retry = true;
}
catch(Exception exLoad)
{
_logger.Error("Failed to manually load runtime binder", exLoad);
}
}
if (!retry)
throw;
}
}
Hopefully this might help someone else out there.
The answers provided above are good but let me just chip in, useState
is async so if your next state is dependent on your previous state it is best you pass useState
a callback. See the example below:
import { useState } from 'react';
function Example() {
const [count, setCount] = useState(0);
return (
<div>
<p>You clicked {count} times</p>
// passing a callback to useState to update count
<button onClick={() => setCount(count => count + 1)}>
Click me
</button>
</div>
);
}
This is the recommended way if your new state depends on computation from the old state.
Problem solved, I've not added the index.html. Which is point out in the web.xml
Note: a project may have more than one web.xml file.
if there are another web.xml in
src/main/webapp/WEB-INF
Then you might need to add another index (this time index.jsp) to
src/main/webapp/WEB-INF/pages/
Technically, Kafka offers a huge superset of features when compared to the set of features offered by Rabbit MQ.
If the question is
Is Rabbit MQ technically better than Kafka?
then the answer is
No.
However, if the question is
Is Rabbit MQ better than Kafka from a business perspective?
then, the answer is
Probably 'Yes', in some business scenarios
Rabbit MQ can be better than Kafka, from a business perspective, for the following reasons:
Maintenance of legacy applications that depend on Rabbit MQ
Staff training cost and steep learning curve required for implementing Kafka
Infrastructure cost for Kafka is higher than that for Rabbit MQ.
Troubleshooting problems in Kafka implementation is difficult when compared to that in Rabbit MQ implementation.
A Rabbit MQ Developer can easily maintain and support applications that use Rabbit MQ.
The same is not true with Kafka. Experience with just Kafka development is not sufficient to maintain and support applications that use Kafka. The support personnel require other skills like zoo-keeper, networking, disk storage too.
In dplyr
you may use n_distinct
to "count the number of unique values":
library(dplyr)
myvec %>%
group_by(name) %>%
summarise(n_distinct(order_no))
In Java, using JNA with the Kernel32.dll library, similar to a C++ solution. Runs the CtrlCSender main method as a Process which just gets the console of the process to send the Ctrl+C event to and generates the event. As it runs separately without a console the Ctrl+C event does not need to be disabled and enabled again.
CtrlCSender.java - Based on Nemo1024's and KindDragon's answers.
Given a known process ID, this consoless application will attach the console of targeted process and generate a CTRL+C Event on it.
import com.sun.jna.platform.win32.Kernel32;
public class CtrlCSender {
public static void main(String args[]) {
int processId = Integer.parseInt(args[0]);
Kernel32.INSTANCE.AttachConsole(processId);
Kernel32.INSTANCE.GenerateConsoleCtrlEvent(Kernel32.CTRL_C_EVENT, 0);
}
}
Main Application - Runs CtrlCSender as a separate consoless process
ProcessBuilder pb = new ProcessBuilder();
pb.command("javaw", "-cp", System.getProperty("java.class.path", "."), CtrlCSender.class.getName(), processId);
pb.redirectErrorStream();
pb.redirectOutput(ProcessBuilder.Redirect.INHERIT);
pb.redirectError(ProcessBuilder.Redirect.INHERIT);
Process ctrlCProcess = pb.start();
ctrlCProcess.waitFor();
Replace
List<String> list=Arrays.asList(split);
to
List<String> list = New ArrayList<>();
list.addAll(Arrays.asList(split));
or
List<String> list = new ArrayList<>(Arrays.asList(split));
or
List<String> list = new ArrayList<String>(Arrays.asList(split));
or (Better for Remove elements)
List<String> list = new LinkedList<>(Arrays.asList(split));
Have to join the fun...
private void TestBench()
{
// An object to test
string[] stringEnumerable = new string[] { "Easy", "as", "Pi" };
ObjectListFromUnknown(stringEnumerable);
}
private void ObjectListFromUnknown(object o)
{
if (typeof(IEnumerable<object>).IsAssignableFrom(o.GetType()))
{
List<object> listO = ((IEnumerable<object>)o).ToList();
// Test it
foreach (var v in listO)
{
Console.WriteLine(v);
}
}
}
If INSERTS
are rare, I would avoid doing a NOT EXISTS (...)
since it emits a SELECT
on all updates. Instead, take a look at wildpeaks answer: https://dba.stackexchange.com/questions/5815/how-can-i-insert-if-key-not-exist-with-postgresql
CREATE OR REPLACE FUNCTION upsert_tableName(arg1 type, arg2 type) RETURNS VOID AS $$
DECLARE
BEGIN
UPDATE tableName SET col1 = value WHERE colX = arg1 and colY = arg2;
IF NOT FOUND THEN
INSERT INTO tableName values (value, arg1, arg2);
END IF;
END;
$$ LANGUAGE 'plpgsql';
This way Postgres will initially try to do a UPDATE
. If no rows was affected, it will fall back to emitting an INSERT
.
You can always use the ( <condition> ? <value if true> : <value if false> )
syntax (it's called the ternary operator - thanks to Mark for remining me :) ).
If <condition>
is true, the statement would be evaluated as <value if true>
. If not, it would be evaluated as <value if false>
For instance:
$fourteen = 14;
$twelve = 12;
echo "Fourteen is ".($fourteen > $twelve ? "more than" : "not more than")." twelve";
This is the same as:
$fourteen = 14;
$twelve = 12;
if($fourteen > 12) {
echo "Fourteen is more than twelve";
}else{
echo "Fourteen is not more than twelve";
}
You likely forgot to #include <stdlib.h>
The very simplest way would be to run Eclipse CDT on the Linux Box and use either X11-Forwarding or remote desktop software such as VNC.
This, of course, is only possible when you Eclipse is present on the Linux box and your network connection to the box is sufficiently fast.
The advantage is that, due to everything being local, you won't have synchronization issues, and you don't get any awkward cross-platform issues.
If you have no eclipse on the box, you could thinking of sharing your linux working directory via SMB (or SSHFS) and access it from your windows machine, but that would require quite some setup.
Both would be better than having two copies, especially when it's cross-platform.
SHA1
is a cryptographic hash function, so the intention of the design was to avoid what you are trying to do.
However, breaking a SHA1
hash is technically possible. You can do so by just trying to guess what was hashed. This brute-force approach is of course not efficient, but that's pretty much the only way.
So to answer your question: yes, it is possible, but you need significant computing power. Some researchers estimate that it costs $70k - $120k.
As far as we can tell today, there is also no other way but to guess the hashed input. This is because operations such as mod
eliminate information from your input. Suppose you calculate mod 5
and you get 0
. What was the input? Was it 0
, 5
or 500
? You see, you can't really 'go back' in this case.
set DSKTOPDIR="D:\test"
set IPADDRESS="23.23.3.23"
>%DSKTOPDIR%\script.ftp ECHO cd %PAY_REP%
>>%DSKTOPDIR%\script.ftp ECHO mget *.report
>>%DSKTOPDIR%\script.ftp ECHO bye
:: run PSFTP Commands
psftp <domain>@%IPADDRESS% -b %DSKTOPDIR%\script.ftp
Set values using set commands before above lines.
I believe this helps you.
Referre psfpt setup for below link https://www.ssh.com/ssh/putty/putty-manuals/0.68/Chapter6.html
Detecting mobile devices
Related answer: https://stackoverflow.com/a/13805337/1306809
There's no single approach that's truly foolproof. The best bet is to mix and match a variety of tricks as needed, to increase the chances of successfully detecting a wider range of handheld devices. See the link above for a few different options.
If you want to copy something from one directory into the current directory, do this:
cp dir1/* .
This assumes you're not trying to copy hidden files.
You can cast to float by doing c = a / float(b)
. If the numerator or denominator is a float, then the result will be also.
A caveat: as commenters have pointed out, this won't work if b
might be something other than an integer or floating-point number (or a string representing one). If you might be dealing with other types (such as complex numbers) you'll need to either check for those or use a different method.
To find menu items in content page base on roles
protected void Page_Load(object sender, EventArgs e)
{
if (Session["AdminSuccess"] != null)
{
Menu mainMenu = (Menu)Page.Master.FindControl("NavigationMenu");
//you must know the index of items to be removed first
mainMenu.Items.RemoveAt(1);
//or you try to hide menu and list items inside menu with css
// cssclass must be defined in style tag in .aspx page
mainMenu.CssClass = ".hide";
}
}
<style type="text/css">
.hide
{
visibility: hidden;
}
</style>
Set your Textbox value in a string like:
string MySTring = textBox1.Text;
Then replace your string. For example, replace "Text" with "Hex":
MyString = MyString.Replace("Text", "Hex");
Or for your problem (replace "," with ;) :
MyString = MyString.Replace(@""",""", ",");
Note: If you have "" in your string you have to use @ in the back of "", like:
@"","";
ScheduledExecutorService
The Answer by Lee is close, but only runs once. The Question seems to be asking to run indefinitely until an external state changes (until the response from a web site/service changes).
The ScheduledExecutorService
interface is part of the java.util.concurrent
package built into Java 5 and later as a more modern replacement for the old Timer
class.
Here is a complete example. Call either scheduleAtFixedRate
or scheduleWithFixedDelay
.
ScheduledExecutorService executor = Executors.newScheduledThreadPool ( 1 );
Runnable r = new Runnable () {
@Override
public void run () {
try { // Always wrap your Runnable with a try-catch as any uncaught Exception causes the ScheduledExecutorService to silently terminate.
System.out.println ( "Now: " + Instant.now () ); // Our task at hand in this example: Capturing the current moment in UTC.
if ( Boolean.FALSE ) { // Add your Boolean test here to see if the external task is fonud to be completed, as described in this Question.
executor.shutdown (); // 'shutdown' politely asks ScheduledExecutorService to terminate after previously submitted tasks are executed.
}
} catch ( Exception e ) {
System.out.println ( "Oops, uncaught Exception surfaced at Runnable in ScheduledExecutorService." );
}
}
};
try {
executor.scheduleAtFixedRate ( r , 0L , 5L , TimeUnit.SECONDS ); // ( runnable , initialDelay , period , TimeUnit )
Thread.sleep ( TimeUnit.MINUTES.toMillis ( 1L ) ); // Let things run a minute to witness the background thread working.
} catch ( InterruptedException ex ) {
Logger.getLogger ( App.class.getName () ).log ( Level.SEVERE , null , ex );
} finally {
System.out.println ( "ScheduledExecutorService expiring. Politely asking ScheduledExecutorService to terminate after previously submitted tasks are executed." );
executor.shutdown ();
}
Expect output like this:
Now: 2016-12-27T02:52:14.951Z
Now: 2016-12-27T02:52:19.955Z
Now: 2016-12-27T02:52:24.951Z
Now: 2016-12-27T02:52:29.951Z
Now: 2016-12-27T02:52:34.953Z
Now: 2016-12-27T02:52:39.952Z
Now: 2016-12-27T02:52:44.951Z
Now: 2016-12-27T02:52:49.953Z
Now: 2016-12-27T02:52:54.953Z
Now: 2016-12-27T02:52:59.951Z
Now: 2016-12-27T02:53:04.952Z
Now: 2016-12-27T02:53:09.951Z
ScheduledExecutorService expiring. Politely asking ScheduledExecutorService to terminate after previously submitted tasks are executed.
Now: 2016-12-27T02:53:14.951Z
This is the most stupid bug I have encountered so far. I had a Fragment
application working perfectly for API < 11, and Force Closing
on API > 11.
I really couldn't figure out what they changed inside the Activity
lifecycle in the call to saveInstance
, but I here is how I solved this :
@Override
protected void onSaveInstanceState(Bundle outState) {
//No call for super(). Bug on API Level > 11.
}
I just do not make the call to .super()
and everything works great. I hope this will save you some time.
EDIT: after some more research, this is a known bug in the support package.
If you need to save the instance, and add something to your outState
Bundle
you can use the following :
@Override
protected void onSaveInstanceState(Bundle outState) {
outState.putString("WORKAROUND_FOR_BUG_19917_KEY", "WORKAROUND_FOR_BUG_19917_VALUE");
super.onSaveInstanceState(outState);
}
EDIT2: this may also occur if you are trying to perform a transaction after your Activity
is gone in background. To avoid this you should use commitAllowingStateLoss()
EDIT3: The above solutions were fixing issues in the early support.v4 libraries from what I can remember. But if you still have issues with this you MUST also read @AlexLockwood 's blog : Fragment Transactions & Activity State Loss
Summary from the blog post (but I strongly recommend you to read it) :
commit()
transactions after onPause()
on pre-Honeycomb, and onStop()
on post-HoneycombActivity
lifecycle methods. Use onCreate()
, onResumeFragments()
and onPostResume()
commitAllowingStateLoss()
only as a last resortJust changing the style with c-set-style was enough for me.
A component is a directive-with-a-template and the @Component
decorator is actually a @Directive
decorator extended with template-oriented features.
In addition to the accepted answers above I created a generic 'groupBy' filter using the underscore.js library.
JSFiddle (updated): http://jsfiddle.net/TD7t3/
The filter
app.filter('groupBy', function() {
return _.memoize(function(items, field) {
return _.groupBy(items, field);
}
);
});
Note the 'memoize' call. This underscore method caches the result of the function and stops angular from evaluating the filter expression every time, thus preventing angular from reaching the digest iterations limit.
The html
<ul>
<li ng-repeat="(team, players) in teamPlayers | groupBy:'team'">
{{team}}
<ul>
<li ng-repeat="player in players">
{{player.name}}
</li>
</ul>
</li>
</ul>
We apply our 'groupBy' filter on the teamPlayers scope variable, on the 'team' property. Our ng-repeat receives a combination of (key, values[]) that we can use in our following iterations.
Update June 11th 2014 I expanded the group by filter to account for the use of expressions as the key (eg nested variables). The angular parse service comes in quite handy for this:
The filter (with expression support)
app.filter('groupBy', function($parse) {
return _.memoize(function(items, field) {
var getter = $parse(field);
return _.groupBy(items, function(item) {
return getter(item);
});
});
});
The controller (with nested objects)
app.controller('homeCtrl', function($scope) {
var teamAlpha = {name: 'team alpha'};
var teamBeta = {name: 'team beta'};
var teamGamma = {name: 'team gamma'};
$scope.teamPlayers = [{name: 'Gene', team: teamAlpha},
{name: 'George', team: teamBeta},
{name: 'Steve', team: teamGamma},
{name: 'Paula', team: teamBeta},
{name: 'Scruath of the 5th sector', team: teamGamma}];
});
The html (with sortBy expression)
<li ng-repeat="(team, players) in teamPlayers | groupBy:'team.name'">
{{team}}
<ul>
<li ng-repeat="player in players">
{{player.name}}
</li>
</ul>
</li>
JSFiddle: http://jsfiddle.net/k7fgB/2/
With the two previous steps stated above, you're still missing the foreign key constraint. This should work:
class AddUserReferenceToTester < ActiveRecord::Migration
def change
add_column :testers, :user_id, :integer, references: :users
end
end
Pulling data type from information_schema
is possible, but not convenient (requires joining several columns with a case
statement). Alternatively one can use format_type
built-in function to do that, but it works on internal type identifiers that are visible in pg_attribute
but not in information_schema
. Example
SELECT a.attname as column_name, format_type(a.atttypid, a.atttypmod) AS data_type
FROM pg_attribute a JOIN pg_class b ON a.attrelid = b.relfilenode
WHERE a.attnum > 0 -- hide internal columns
AND NOT a.attisdropped -- hide deleted columns
AND b.oid = 'my_table'::regclass::oid; -- example way to find pg_class entry for a table
Based on https://gis.stackexchange.com/a/97834.
The ideal way is to use a dictionary that maps a word to it's count. But if you can't use that, you might want to use 2 lists - 1 storing the words, and the other one storing counts of words. Note that order of words and counts matters here. Implementing this would be hard and not very efficient.
This is similar to other answers, however updated for new available apis and much cleaner. Also, does not assume you're in an Activity Context.
public class MyService extends AnyContextSubclass {
public void postToastMessage(final String message) {
Handler handler = new Handler(Looper.getMainLooper());
handler.post(new Runnable() {
@Override
public void run() {
Toast.makeText(getContext(), message, Toast.LENGTH_LONG).show();
}
});
}
}
Assuming you really want an array of single-character strings (not a char[]
or Character[]
)
1. Using a regex:
public static String[] singleChars(String s) {
return s.split("(?!^)");
}
The zero width negative lookahead prevents the pattern matching at the start of the input, so you don't get a leading empty string.
2. Using Guava:
import java.util.List;
import org.apache.commons.lang.ArrayUtils;
import com.google.common.base.Functions;
import com.google.common.collect.Lists;
import com.google.common.primitives.Chars;
// ...
public static String[] singleChars(String s) {
return
Lists.transform(Chars.asList(s.toCharArray()),
Functions.toStringFunction())
.toArray(ArrayUtils.EMPTY_STRING_ARRAY);
}
You could use it to call a superclass's method (such as when you are overriding such a method, super.foo() etc) -- this would allow you to keep that functionality and add on to it with whatever else you have in the overriden method.
req
is an object containing information about the HTTP request that raised the event. In response to req
, you use res
to send back the desired HTTP response.
Those parameters can be named anything. You could change that code to this if it's more clear:
app.get('/user/:id', function(request, response){
response.send('user ' + request.params.id);
});
Edit:
Say you have this method:
app.get('/people.json', function(request, response) { });
The request will be an object with properties like these (just to name a few):
request.url
, which will be "/people.json"
when this particular action is triggeredrequest.method
, which will be "GET"
in this case, hence the app.get()
call.request.headers
, containing items like request.headers.accept
, which you can use to determine what kind of browser made the request, what sort of responses it can handle, whether or not it's able to understand HTTP compression, etc.request.query
(e.g. /people.json?foo=bar
would result in request.query.foo
containing the string "bar"
).To respond to that request, you use the response object to build your response. To expand on the people.json
example:
app.get('/people.json', function(request, response) {
// We want to set the content-type header so that the browser understands
// the content of the response.
response.contentType('application/json');
// Normally, the data is fetched from a database, but we can cheat:
var people = [
{ name: 'Dave', location: 'Atlanta' },
{ name: 'Santa Claus', location: 'North Pole' },
{ name: 'Man in the Moon', location: 'The Moon' }
];
// Since the request is for a JSON representation of the people, we
// should JSON serialize them. The built-in JSON.stringify() function
// does that.
var peopleJSON = JSON.stringify(people);
// Now, we can use the response object's send method to push that string
// of people JSON back to the browser in response to this request:
response.send(peopleJSON);
});
The difference between them is, that a val
is executed when it is defined whereas a lazy val
is executed when it is accessed the first time.
scala> val x = { println("x"); 15 }
x
x: Int = 15
scala> lazy val y = { println("y"); 13 }
y: Int = <lazy>
scala> x
res2: Int = 15
scala> y
y
res3: Int = 13
scala> y
res4: Int = 13
In contrast to a method (defined with def
) a lazy val
is executed once and then never again. This can be useful when an operation takes long time to complete and when it is not sure if it is later used.
scala> class X { val x = { Thread.sleep(2000); 15 } }
defined class X
scala> class Y { lazy val y = { Thread.sleep(2000); 13 } }
defined class Y
scala> new X
res5: X = X@262505b7 // we have to wait two seconds to the result
scala> new Y
res6: Y = Y@1555bd22 // this appears immediately
Here, when the values x
and y
are never used, only x
unnecessarily wasting resources. If we suppose that y
has no side effects and that we do not know how often it is accessed (never, once, thousands of times) it is useless to declare it as def
since we don't want to execute it several times.
If you want to know how lazy vals
are implemented, see this question.
You can use this command: save to file AndroidManifest.txt
aapt dump xmltree gmail.apk AndroidManifest.xml > AndroidManifest.txt
You must attach the event after insert elements, like that you don't attach a global event on your document
but a specific event on the inserted elements.
e.g.
document.getElementById('form').addEventListener('submit', function(e) {_x000D_
e.preventDefault();_x000D_
var name = document.getElementById('txtName').value;_x000D_
var idElement = 'btnPrepend';_x000D_
var html = `_x000D_
<ul>_x000D_
<li>${name}</li>_x000D_
</ul>_x000D_
<input type="button" value="prepend" id="${idElement}" />_x000D_
`;_x000D_
/* Insert the html into your DOM */_x000D_
insertHTML('form', html);_x000D_
/* Add an event listener after insert html */_x000D_
addEvent(idElement);_x000D_
});_x000D_
_x000D_
const insertHTML = (tag = 'form', html, position = 'afterend', index = 0) => {_x000D_
document.getElementsByTagName(tag)[index].insertAdjacentHTML(position, html);_x000D_
}_x000D_
const addEvent = (id, event = 'click') => {_x000D_
document.getElementById(id).addEventListener(event, function() {_x000D_
insertHTML('ul', '<li>Prepending data</li>', 'afterbegin')_x000D_
});_x000D_
}
_x000D_
<form id="form">_x000D_
<div>_x000D_
<label for="txtName">Name</label>_x000D_
<input id="txtName" name="txtName" type="text" />_x000D_
</div>_x000D_
<input type="submit" value="submit" />_x000D_
</form>
_x000D_
from pandas import DataFrame
import pandas as pd
d = {'one':[2,3,1,4,5],
'two':[5,4,3,2,1],
'letter':['a','a','b','b','c']}
df = DataFrame(d)
test = df.sort_values(['one'], ascending=False)
test
We can use attribute android:background in Button xml like below.
android:background="?android:attr/selectableItemBackground"
Or we can use style
style="?android:attr/borderlessButtonStyle"
for transparent and shadow less background.
According to the latest document when state is set to be directory, you don't need to use parameter recurse to create parent directories, file module will take care of it.
- name: create directory with parent directories
file:
path: /data/test/foo
state: directory
this is fare enough to create the parent directories data and test with foo
please refer the parameter description - "state" http://docs.ansible.com/ansible/latest/modules/file_module.html
I was having the same issue and wanted to Mavenise entire eclipse workspace containing around 60 Eclipse projects. Doing so manually required a lot of time and alternate options were not that viable. To solve the issue I finally created a project called eclipse-to-maven on github. As eclipse doesn't have all necessary information about the dependencies, it does the following:
Based on <classpathentry/>
XML elements in .classpath file, it creates the dependencies on another project, identifies the library jar file and based on its name (for instance jakarta-oro-2.0.8.jar) identifies its version. Currently artifactId
and groupId
are same as I couldn't find something which could return me the Maven groupId of the dependency based on artifactId
. Though this is not a perfect solution it provides a good ground to speed up Mavenisation.
It moves all source folders according to Maven convention (like src/main/java
)
As Eclipse projects having names with spaces are difficult to deal on Linux/Unix environment, it renames them as well with names without spaces.
Resultant pom.xml files contain the dependencies and basic pom structure. You have to add required Maven plugins manually.
[Update]
While the solution under "old answer" will work for general problems, this section is to answer your specific question after clarification from your comment.
You should be able to set environment variables exactly like you specify in your question. As an example, I have a Heroku app that uses HTTP basic authentication.
# app/controllers/application_controller.rb
class ApplicationController < ActionController::Base
protect_from_forgery
before_filter :authenticate
def authenticate
authenticate_or_request_with_http_basic do |username, password|
username == ENV['HTTP_USER'] && password == ENV['HTTP_PASS']
end
end
end
# config/initializers/dev_environment.rb
unless Rails.env.production?
ENV['HTTP_USER'] = 'testuser'
ENV['HTTP_PASS'] = 'testpass'
end
So in your case you would use
unless Rails.env.production?
ENV['admin_password'] = "secret"
end
Don't forget to restart the server so the configuration is reloaded!
[Old Answer]
For app-wide configuration, you might consider a solution like the following:
Create a file config/application.yml
with a hash of options you want to be able to access:
admin_password: something_secret
allow_registration: true
facebook:
app_id: application_id_here
app_secret: application_secret_here
api_key: api_key_here
Now, create the file config/initializers/app_config.rb
and include the following:
require 'yaml'
yaml_data = YAML::load(ERB.new(IO.read(File.join(Rails.root, 'config', 'application.yml'))).result)
APP_CONFIG = HashWithIndifferentAccess.new(yaml_data)
Now, anywhere in your application, you can access APP_CONFIG[:admin_password]
, along with all your other data. (Note that since the initializer includes ERB.new
, your YAML file can contain ERB markup.)
Use Node.js command prompt and execute the command
ng version
It should work.
If you're looking to actually find where ng
is located you can then type where ng
and it will show you which ng
is running (eg. C:\Users\USERNAME\AppData\Roaming\npm
). You can then look at your path and see if adding that folder is helpful. The Node.js command prompt adds extra paths that may be missing from your path.
I just recently had the same problem. I have made this work around, hope it will help someone.
HTML + tailwind
<div class="dashed-border h-14 w-full relative rounded-lg">
<div class="w-full h-full rounded-lg bg-page z-10 relative">
Content goes here...
<div>
</div>
CSS
.dashed-border::before {
content: '';
position: absolute;
top: 50%;
left: 0;
width: 100%;
height: calc(100% + 4px);
transform: translateY(-50%);
background-image: linear-gradient(to right, #333 50%, transparent 50%);
background-size: 16px;
z-index: 0;
border-radius: 0.5rem;
}
.dashed-border::after {
content: '';
position: absolute;
left: 50%;
top: 0;
height: 100%;
width: calc(100% + 4px);
transform: translateX(-50%);
background-image: linear-gradient(to bottom, #333 50%, transparent 50%);
background-size: 4px 16px;
z-index: 1;
border-radius: 0.5rem;
}
If you want to apply the same listener to more than one TextField here is the simplest solution:
TextField txtMinPrice, txtMaxPrice = new TextField();
ChangeListener<String> forceNumberListener = (observable, oldValue, newValue) -> {
if (!newValue.matches("\\d*"))
((StringProperty) observable).set(oldValue);
};
txtMinPrice.textProperty().addListener(forceNumberListener);
txtMaxPrice.textProperty().addListener(forceNumberListener);
Use ROUND
but with num_digits
= -1
=ROUND(A1,-1)
Also applies to ROUNDUP
and ROUNDDOWN
From Excel help:
EDIT:
To get the numbers to always round up use =ROUNDUP(A1,-1)
For those who are having trouble with fatal error: ESP8266WiFi.h: No such file or directory
, you can install the package manually.
You may still need to have the http://arduino.esp8266.com/stable/package_esp8266com_index.json package installed beforehand, however.
Edit: That wasn't the full issue, you need to make sure you have the correct ESP8266 Board selected before compiling.
Hope this helps others.
Rebase and Cherry-pick is the only way you can keep clean commit history. Avoid using merge and avoid creating merge conflict. If you are using gerrit set one project to Merge if necessary and one project to cherry-pick mode and try yourself.
One thing I ran into with the above CustomCellBackgroundView code from Mike Akers which might be useful to others:
cell.backgroundView
doesn't get automatically redrawn when cells are reused, and changes to the backgroundView's position var don't affect reused cells. That means long tables will have incorrectly drawn cell.backgroundViews
given their positions.
To fix this without having to create a new backgroundView every time a row is displayed, call [cell.backgroundView setNeedsDisplay]
at the end of your -[UITableViewController tableView:cellForRowAtIndexPath:]
. Or for a more reusable solution, override CustomCellBackgroundView's position setter to include a [self setNeedsDisplay]
.
Alternate solution. I prefer this for the brevity and code simplicity.
(function () {
alert("I am here");
})();
This is an anonymous function, where the name is not specified. What happens here is that, the function is defined and executed together. Add this to the beginning or end of the body, depending on if it is to be executed before loading the page or soon after all the HTML elements are loaded.
If it is a normal then the port number is always 80 and may be written as http://www.somewhere.com:80 Though you don't need to specify it as :80 is the default of every web browser.
If the site chose to use something else then they are intending to hide from anything not sent by a "friendly" or linked to. Those ones usually show with https and their port number is unknown and decided by their admin.
If you choose to runn a port scanner trying every number nn from say 10000 to 30000 in https://something.somewhere.com:nn Then your isp or their antivirus will probably notice and disconnect you.
<script>
$(function() {
$("#datepicker").datepicker();
$('#datepicker').datepicker('option', {dateFormat: 'd MM y'});
});
$("#startDate").datepicker({dateFormat: 'd MM y'});
</script>
Recursive solution to print all items in a list:
def printItems(l):
for i in l:
if isinstance(i,list):
printItems(i)
else:
print i
l = [['vegas','London'],['US','UK']]
printItems(l)
This is the final code with improvements in Swift
//MARK: UITextFieldDelegate
func textFieldDidBeginEditing(textField: UITextField!) { //delegate method
self.textField = textField
}
func textFieldShouldReturn(textField: UITextField!) -> Bool { //delegate method
textField.resignFirstResponder()
return true
}
//MARK: Keyboard handling
override func viewWillDisappear(animated: Bool) {
super.viewWillDisappear(animated)
unregisterKeyboardNotifications()
}
func registerKeyboardNotifications() {
NSNotificationCenter.defaultCenter().addObserver(self, selector: #selector(UCProfileSettingsViewController.keyboardDidShow(_:)), name: UIKeyboardDidShowNotification, object: nil)
NSNotificationCenter.defaultCenter().addObserver(self, selector: #selector(UCProfileSettingsViewController.keyboardWillHide(_:)), name: UIKeyboardWillHideNotification, object: nil)
}
func unregisterKeyboardNotifications() {
NSNotificationCenter.defaultCenter().removeObserver(self)
}
func keyboardDidShow(notification: NSNotification) {
let userInfo: NSDictionary = notification.userInfo!
let keyboardSize = userInfo.objectForKey(UIKeyboardFrameBeginUserInfoKey)!.CGRectValue.size
let contentInsets = UIEdgeInsetsMake(0, 0, keyboardSize.height, 0)
scrollView.contentInset = contentInsets
scrollView.scrollIndicatorInsets = contentInsets
var viewRect = self.view.frame
viewRect.size.height -= keyboardSize.height
let relativeFieldFrame: CGRect = textField.convertRect(textField.frame, toView: self.view)
if CGRectContainsPoint(viewRect, relativeFieldFrame.origin) {
let scrollPoint = CGPointMake(0, relativeFieldFrame.origin.y - keyboardSize.height)
scrollView.setContentOffset(scrollPoint, animated: true)
}
}
func keyboardWillHide(notification: NSNotification) {
scrollView.contentInset = UIEdgeInsetsZero
scrollView.scrollIndicatorInsets = UIEdgeInsetsZero
}
One approach is to combine the search strings into a regex pattern as in this answer.
In my case git rm --cached
didn't work.
But i got it with a git rebase
Late to the party but ...
I'm new to python and come from a lisp background. This is what I came up with (check out the var names for lulz):
def flatten(lst):
if lst:
car,*cdr=lst
if isinstance(car,(list,tuple)):
if cdr: return flatten(car) + flatten(cdr)
return flatten(car)
if cdr: return [car] + flatten(cdr)
return [car]
Seems to work. Test:
flatten((1,2,3,(4,5,6,(7,8,(((1,2)))))))
returns:
[1, 2, 3, 4, 5, 6, 7, 8, 1, 2]
np.array()
is even more powerful than what unutbu said above.
You also could use it to convert a list of np arrays to a higher dimention array, the following is a simple example:
aArray=np.array([1,1,1])
bArray=np.array([2,2,2])
aList=[aArray, bArray]
xArray=np.array(aList)
xArray's shape is (2,3), it's a standard np array. This operation avoids a loop programming.
after the part of code,I can write anything just like my views.py :)
#######################################
import os,sys
sys.path.append('/home/administrator/development/store')
os.environ['DJANGO_SETTINGS_MODULE']='store.settings'
from django.core.management impor setup_environ
from store import settings
setup_environ(settings)
#######################################
from http://www.cotellese.net/2007/09/27/running-external-scripts-against-django-models/
I don't know about the performance statistics on this one, but have you tried using the Directory.GetFiles()
static method ?
It returns a string array containing filenames (not FileInfos) and you can check the length of the array in the same way as above.
It also depends on the brand of your balancer, for the web mux, you would need to look for http header X-WebMux-SSL-termination: true
to figure that incoming traffic was ssl. details here: http://www.cainetworks.com/support/redirect2ssl.html
I have tried some solutions,but here is basic production snippet. Please, pay attention to console output during quality assurance of this snippet.
Mark Up :
<!DOCTYPE html>
<html ng-app="appUp">
<head>
<title>
Angular Select snippet
</title>
<link rel="stylesheet" href="https://maxcdn.bootstrapcdn.com/bootstrap/4.0.0-alpha.6/css/bootstrap.min.css" />
</head>
<body ng-controller="upController">
<div class="container">
<div class="row">
<div class="col-md-4">
</div>
<div class="col-md-3">
<div class="form-group">
<select name="slct" id="slct" class="form-control" ng-model="selBrand" ng-change="Changer(selBrand)" ng-options="brand as brand.name for brand in stock">
<option value="">
Select Brand
</option>
</select>
</div>
<div class="form-group">
<input type="hidden" name="delimiter" value=":" ng-model="delimiter" />
<input type="hidden" name="currency" value="$" ng-model="currency" />
<span>
{{selBrand.name}}{{delimiter}}{{selBrand.price}}{{currency}}
</span>
</div>
</div>
<div class="col-md-4">
</div>
</div>
</div>
<script type="text/javascript" src="https://ajax.googleapis.com/ajax/libs/jquery/3.1.1/jquery.min.js">
</script>
<script type="text/javascript" src="//cdnjs.cloudflare.com/ajax/libs/tether/1.4.0/js/tether.min.js"></script>
<script src="//maxcdn.bootstrapcdn.com/bootstrap/4.0.0-alpha.6/js/bootstrap.min.js"></script>
<script type="text/javascript" src="//ajax.googleapis.com/ajax/libs/angularjs/1.5.7/angular.min.js">
</script>
<script src="js/ui-bootstrap-tpls-2.5.0.min.js"></script>
<script src="js/main.js"></script>
</body>
</html>
Code:
var c = console;
var d = document;
var app = angular.module('appUp',[]).controller('upController',function($scope){
$scope.stock = [{
name:"Adidas",
price:420
},
{
name:"Nike",
price:327
},
{
name:"Clark",
price:725
}
];//data
$scope.Changer = function(){
if($scope.selBrand){
c.log("brand:"+$scope.selBrand.name+",price:"+$scope.selBrand.price);
$scope.currency = "$";
$scope.delimiter = ":";
}
else{
$scope.currency = "";
$scope.delimiter = "";
c.clear();
}
}; // onchange handler
});
Explanation: important point here is null check of the changed value, i.e. if value is 'undefined' or 'null' we should to handle this situation.
"Select your text, right click, then choose
Style Token
and then using 1st style (2nd style, etc …). At the moment is not possible to save the style tokens but there is an idea pending on Idea torrent you may vote for if your are interested in that."
It should be default, but it might be hidden.
"It might be that something happened to your
contextMenu.xml
so that you only get the basic standard. Have a look in NPPs config folder (%appdata%\Notepad++\
) if thecontextMenu.xml
is there. If no: that would be the answer; if yes: it might be defect. Anyway you can grab the original standart contextMenu.xml from here and place it into the config folder (or replace the existing xml). Start NPP and you should have quite a long context menu. Tip: have a look at thecontextmenu.xml
itself - because you're allowed to change it to your own needs."
See this for more information
Here is my solution that using localised regex. So in german also "j" for "Ja" would be interpreted as yes.
First argument is the question, if the second argument is "y" than yes would be the default answer otherwise no would be the default answer. The return value is 0 if the answer was "yes" and 1 if the answer was "no".
function shure(){
if [ $# -gt 1 ] && [[ "$2" =~ ^[yY]*$ ]] ; then
arg="[Y/n]"
reg=$(locale noexpr)
default=(0 1)
else
arg="[y/N]"
reg=$(locale yesexpr)
default=(1 0)
fi
read -p "$1 ${arg}? : " answer
[[ "$answer" =~ $reg ]] && return ${default[1]} || return ${default[0]}
}
Here is a basic usage
# basic example default is no
shure "question message" && echo "answer yes" || echo "answer no"
# print "question message [y/N]? : "
# basic example default set to yes
shure "question message" y && echo "answer yes" || echo "answer no"
# print "question message [Y/n]? : "
create example script as resp :
#!/bin/bash
http_code=200
mime=text/html
echo -e "HTTP/1.1 $http_code OK\r"
echo "Content-type: $mime"
echo
echo "Set-Cookie: name=F"
then make executable and execute like this.
./resp | nc -l -p 12346
open browser and browse URL: http://localhost:1236 you will see Cookie value which is sent by Browser
[aaa@bbbbbbbb ]$ ./resp | nc -l -p 12346 GET / HTTP/1.1 Host: xxx.xxx.xxx.xxx:12346 Connection: keep-alive Cache-Control: max-age=0 Accept: text/html,application/xhtml+xml,application/xml;q=0.9,image/webp,*/*;q=0.8 Upgrade-Insecure-Requests: 1 User-Agent: Mozilla/5.0 (Windows NT 6.1) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/49.0.2623.112 Safari/537.36 Accept-Encoding: gzip, deflate, sdch Accept-Language: en-US,en;q=0.8,ru;q=0.6 Cookie: name=F
This is related to Content-Type
. As you might have noticed from other discussions and answers to this question some people were able to solve it by setting Content-Type: 'application/json'
. Unfortunately in my case it didn't work, my POST request was still empty on the server side.
However, if you try with jQuery's $.post()
and it's working, the reason is probably because of jQuery using Content-Type: 'x-www-form-urlencoded'
instead of application/json
.
data = Object.keys(data).map(key => encodeURIComponent(key) + '=' + encodeURIComponent(data[key])).join('&')
fetch('/api/', {
method: 'post',
credentials: "include",
body: data,
headers: {'Content-Type': 'application/x-www-form-urlencoded'}
})
Rarely, a hardened HTTP server is configured to give no server information or misleading server information. In those scenarios if the server has PHP enabled you can add:
<?php phpinfo(); ?>
in a file and browse to it and look for the
_SERVER["SERVER_SOFTWARE"]
entry. This is susceptible to the same hardening lack of information/misleading though I would imagine that it's not altered often, because this method first requires access to the machine to create the PHP file.
Use /fonts/ or /font/ before font type name in your CSS stylesheet. I face this error but after that its working fine.
@font-face {
font-family: 'robotoregular';
src: url('../fonts/Roboto-Regular-webfont.eot');
src: url('../fonts/Roboto-Regular-webfont.eot?#iefix') format('embedded-opentype'),
url('../fonts/Roboto-Regular-webfont.woff') format('woff'),
url('../fonts/Roboto-Regular-webfont.ttf') format('truetype'),
url('../fonts/Roboto-Regular-webfont.svg#robotoregular') format('svg');
font-weight: normal;
font-style: normal;
}
Right click the project and click "Properties". Then select "Android" from the tree on the left. You can then select the target version on the right.
(Note as per the popular comment below, make sure your properties, classpath and project files are writable otherwise it won't work)
This is the best I've found for teaching new programmers, and without using additional libraries. I'd like something better though.
def initialize_twodlist(value):
list=[]
for row in range(10):
list.append([value]*10)
return list
How to add single item. This is not very effective but follows what you are asking for:
x = p.Series()
N = 4
for i in xrange(N):
x = x.set_value(i, i**2)
produces x:
0 0
1 1
2 4
3 9
Obviously there are better ways to generate this series in only one shot.
For your second question check answer and references of SO question add one row in a pandas.DataFrame.
The prompt:
Password for 'https://[email protected]':
suggests, that you are using https not ssh. SSH urls start with git@, for example:
[email protected]:beginninggit/alias.git
Even if you work alone, with a single repo that you own, the operation:
git push
will cause:
Password for 'https://[email protected]':
if the remote origin starts with https
.
Check your remote with:
git remote -v
The remote depends on git clone
. If you want to use ssh clone the repo using its ssh url, for example:
git clone [email protected]:user/repo.git
I suggest you to start with git push
and git pull
for your private repo.
If that works, you have two joices suggested by Lazy Badger:
This may also be because you might have given classname with all letters in lowercase something which groovy (know of version 2.5.0) does not support.
class name - User is accepted but user is not.
Other suggested approaches:
Using the 'Print and then select save as pdf.' from your HTML file will result in loss of border edges, highlighting of syntax, trimming of plots etc.
Some other libraries have shown to be broken when it comes to using obsolete versions.
Solution: A better, hassle-free option is to use an online converter which will convert the *.html version of your *.ipynb to *.pdf.
Steps:
File > Download as > HTML(.html)
Upload the newly created *.html file here and then select the option HTML to PDF.
Your pdf file is now ready for download.
You now have .ipynb, .html and .pdf files
Warn/confirm User if Back button is Pressed is as below.
window.onbeforeunload = function() { return "Your work will be lost."; };
You can get more information using below mentioned links.
Disable Back Button in Browser using JavaScript
I hope this will help to you.
You can use as below:
GlobalConfiguration.Configuration.Formatters.Clear();
GlobalConfiguration.Configuration.Formatters.Add(new JsonMediaTypeFormatter());
Props can change when a component's parent renders the component again with different properties. I think this is mostly an optimization so that no new component needs to be instantiated.
I guess this is a fairly old question, but now in 2017. We have neovim, which is a fork of vim which adds terminal support.
So invoking :term
would open a terminal window. The beauty of this solution as opposed to using tmux (a terminal multiplexer) is that you'll have the same window bindings as your vim
setup. neovim is compatible with vim, so you can basically copy and paste your .vimrc
and it will just work.
More advantages are you can switch to normal mode on the opened terminal and you can do basic copy and editing. It is also pretty useful for git commits too I guess, since everything in your buffer you can use in auto-complete.
I'll update this answer since vim is also planning to release terminal support, probably in vim 8.1. You can follow the progress here: https://groups.google.com/forum/#!topic/vim_dev/Q9gUWGCeTXM
Once it's released, I do believe this is a more superior setup than using tmux.
An instance is probably still running. This will fix it.
killall node
Update: This command will only work on Linux/Ubuntu & Mac.
This error occurred for me when I mistakenly added a comment following a line continuation character in VB.Net. I removed the comment and the problem went away.
If you google. "Count down for loop python" you get these, which are pretty accurate.
how to loop down in python list (countdown)
Loop backwards using indices in Python?
I recommend doing minor searches before posting. Also "Learn Python The Hard Way" is a good place to start.
If you can't get access to request
then you can't use get_current_site(request)
as recommended in some solutions here. You can use a combination of the native Sites framework and get_absolute_url
instead. Set up at least one Site in the admin, make sure your model has a get_absolute_url() method, then:
>>> from django.contrib.sites.models import Site
>>> domain = Site.objects.get_current().domain
>>> obj = MyModel.objects.get(id=3)
>>> path = obj.get_absolute_url()
>>> url = 'http://{domain}{path}'.format(domain=domain, path=path)
>>> print(url)
'http://example.com/mymodel/objects/3/'
https://docs.djangoproject.com/en/dev/ref/contrib/sites/#getting-the-current-domain-for-full-urls
This is a question of style (or preference) since the interpreter does not care. Personally I would try not to make the final statement of a function which returns a value at an indent level other than the function base. The else in example 1 obscures, if only slightly, where the end of the function is.
By preference I use:
return A+1 if (A > B) else A-1
As it obeys both the good convention of having a single return statement as the last statement in the function (as already mentioned) and the good functional programming paradigm of avoiding imperative style intermediate results.
For more complex functions I prefer to break the function into multiple sub-functions to avoid premature returns if possible. Otherwise I revert to using an imperative style variable called rval. I try not to use multiple return statements unless the function is trivial or the return statement before the end is as a result of an error. Returning prematurely highlights the fact that you cannot go on. For complex functions that are designed to branch off into multiple subfunctions I try to code them as case statements (driven by a dict for instance).
Some posters have mentioned speed of operation. Speed of Run-time is secondary for me since if you need speed of execution Python is not the best language to use. I use Python as its the efficiency of coding (i.e. writing error free code) that matters to me.
You can use a simple regex like this:
public static string StripHTML(string input)
{
return Regex.Replace(input, "<.*?>", String.Empty);
}
Be aware that this solution has its own flaw. See Remove HTML tags in String for more information (especially the comments of @mehaase)
Another solution would be to use the HTML Agility Pack.
You can find an example using the library here: HTML agility pack - removing unwanted tags without removing content?
TreeSize professional has what you want. but it focus on the sizes of folders and files.
This is standard C:
#include <stdio.h>
int main(int argc, char **argv)
{
printf("%d ", argc);
(void) (argc <= 1000 && main(argc+1, 0));
return 0;
}
If you call it without arguments, it will print the numbers from 1 to 1000. Notice that the && operator is not a "conditional statement" even though it serves the same purpose.
If you know the bitrate, it's simply bitrate (bits per second) multiplied by number of seconds. Given that HDV is 25 Mbit/s and one hour has 3,600 seconds, non-transcoded it would be:
25 Mbit/s * 3,600 s/hr = 3.125 MB/s * 3,600 s/hr = 11,250 MB/hr ˜ 11 GB/hr
Google's calculator can confirm
The same applies with H.264 footage, although the above might not be as accurate (being variable bitrate and such).
I want to archive approximately 100 hours of such content and want to figure out whether I'm looking at a big hard drive, a multi-drive unit like a Drobo, or an enterprise-level storage system.
First, do not buy an "enterprise-level" storage system (you almost certainly don't need things like hot-swap drives and the same level of support - given the costs)..
I would suggest buying two big drives: One would be your main drive, another in a USB enclosure, and would be connected daily and mirror the primary system (as a backup).
Drives are incredibly cheap, using the above calculation of ~11 GB/hour, that's only 1.1 TB of data (for 100 hours, uncompressed). and you can buy 2 TB drives now.
Drobo, or a machine with a few drives and software RAID is an option, but a single large drive plus backups would be simpler.
Storage is almost a non-issue now, but encode time can still be an issue. Encoding H.264 is very resource-intensive. On a quad-core ~2.5 GHz Xeon, I think I got around 60 fps encoding standard-def (DVD) to H.264 (compared to around 300 fps with MPEG 4). I suppose that's only about 50 hours, but it's something worth considering. Also, assuming the HDV is on tapes, it's a 1:1 capture time, so that's 150 hours of straight processing, never mind things like changing tapes, entering metadata, and general delays (sleep) and errors ("opps, wrong tape").
If you are using the bash exit code status $? as variable, it's better to do this:
if [ $? -eq 4 -o $? -eq 8 ] ; then
echo "..."
fi
Because if you do:
if [ $? -eq 4 ] || [ $? -eq 8 ] ; then
The left part of the OR alters the $? variable, so the right part of the OR doesn't have the original $? value.
Use splatting.
$CurlArgument = '-u', '[email protected]:yyyy',
'-X', 'POST',
'https://xxx.bitbucket.org/1.0/repositories/abcd/efg/pull-requests/2229/comments',
'--data', 'content=success'
$CURLEXE = 'C:\Program Files\Git\mingw64\bin\curl.exe'
& $CURLEXE @CurlArgument
This issue has occurred to me when I had a bad reference in my render/return statement. (point to a non existing class). Also check your return statement code for bad references.
Just spent 4 hours with this problem. Finally realized that you must not use zero as view id. You would think that it is allowed as NO_ID == -1, but things tend to go haywire if you give it to your view...
Consider this line of code:
Math.abs(firstDouble - secondDouble) < Double.MIN_NORMAL
It returns whether firstDouble is equal to secondDouble. I'm unsure as to whether or not this would work in your exact case (as Kevin pointed out, performing any math on floating points can lead to imprecise results) however I was having difficulties with comparing two double which were, indeed, equal, and yet using the 'compareTo' method didn't return 0.
I'm just leaving this there in case anyone needs to compare to check if they are indeed equal, and not just similar.
No. To do it just once you would simply write the delete statement for the table you want to cascade.
DELETE FROM some_child_table WHERE some_fk_field IN (SELECT some_id FROM some_Table);
DELETE FROM some_table;
I received the same error when cloning an HTML element for use in a form.
(I have a partially complete form, which has a template injected into it, and then the template is modified)
The error was referencing the original field, and not the cloned version.
I couldn't find any methods that would force the form to re-evaluate itself (in the hope it would get rid of any references to the old fields that now don't exist) before running the validation.
In order to get around this issue, I removed the required attribute from the original element and dynamically added it to the cloned field before injecting it into the form. The form now validates the cloned and modified fields correctly.
UPDATE 2: A useful set of regex functions including REGEXP_REPLACE have now been provided in MySQL 8.0. This renders reading on unnecessary unless you're constrained to using an earlier version.
UPDATE 1: Have now made this into a blog post: http://stevettt.blogspot.co.uk/2018/02/a-mysql-regular-expression-replace.html
The following expands upon the function provided by Rasika Godawatte but trawls through all necessary substrings rather than just testing single characters:
-- ------------------------------------------------------------------------------------
-- USAGE
-- ------------------------------------------------------------------------------------
-- SELECT reg_replace(<subject>,
-- <pattern>,
-- <replacement>,
-- <greedy>,
-- <minMatchLen>,
-- <maxMatchLen>);
-- where:
-- <subject> is the string to look in for doing the replacements
-- <pattern> is the regular expression to match against
-- <replacement> is the replacement string
-- <greedy> is TRUE for greedy matching or FALSE for non-greedy matching
-- <minMatchLen> specifies the minimum match length
-- <maxMatchLen> specifies the maximum match length
-- (minMatchLen and maxMatchLen are used to improve efficiency but are
-- optional and can be set to 0 or NULL if not known/required)
-- Example:
-- SELECT reg_replace(txt, '^[Tt][^ ]* ', 'a', TRUE, 2, 0) FROM tbl;
DROP FUNCTION IF EXISTS reg_replace;
DELIMITER //
CREATE FUNCTION reg_replace(subject VARCHAR(21845), pattern VARCHAR(21845),
replacement VARCHAR(21845), greedy BOOLEAN, minMatchLen INT, maxMatchLen INT)
RETURNS VARCHAR(21845) DETERMINISTIC BEGIN
DECLARE result, subStr, usePattern VARCHAR(21845);
DECLARE startPos, prevStartPos, startInc, len, lenInc INT;
IF subject REGEXP pattern THEN
SET result = '';
-- Sanitize input parameter values
SET minMatchLen = IF(minMatchLen < 1, 1, minMatchLen);
SET maxMatchLen = IF(maxMatchLen < 1 OR maxMatchLen > CHAR_LENGTH(subject),
CHAR_LENGTH(subject), maxMatchLen);
-- Set the pattern to use to match an entire string rather than part of a string
SET usePattern = IF (LEFT(pattern, 1) = '^', pattern, CONCAT('^', pattern));
SET usePattern = IF (RIGHT(pattern, 1) = '$', usePattern, CONCAT(usePattern, '$'));
-- Set start position to 1 if pattern starts with ^ or doesn't end with $.
IF LEFT(pattern, 1) = '^' OR RIGHT(pattern, 1) <> '$' THEN
SET startPos = 1, startInc = 1;
-- Otherwise (i.e. pattern ends with $ but doesn't start with ^): Set start pos
-- to the min or max match length from the end (depending on "greedy" flag).
ELSEIF greedy THEN
SET startPos = CHAR_LENGTH(subject) - maxMatchLen + 1, startInc = 1;
ELSE
SET startPos = CHAR_LENGTH(subject) - minMatchLen + 1, startInc = -1;
END IF;
WHILE startPos >= 1 AND startPos <= CHAR_LENGTH(subject)
AND startPos + minMatchLen - 1 <= CHAR_LENGTH(subject)
AND !(LEFT(pattern, 1) = '^' AND startPos <> 1)
AND !(RIGHT(pattern, 1) = '$'
AND startPos + maxMatchLen - 1 < CHAR_LENGTH(subject)) DO
-- Set start length to maximum if matching greedily or pattern ends with $.
-- Otherwise set starting length to the minimum match length.
IF greedy OR RIGHT(pattern, 1) = '$' THEN
SET len = LEAST(CHAR_LENGTH(subject) - startPos + 1, maxMatchLen), lenInc = -1;
ELSE
SET len = minMatchLen, lenInc = 1;
END IF;
SET prevStartPos = startPos;
lenLoop: WHILE len >= 1 AND len <= maxMatchLen
AND startPos + len - 1 <= CHAR_LENGTH(subject)
AND !(RIGHT(pattern, 1) = '$'
AND startPos + len - 1 <> CHAR_LENGTH(subject)) DO
SET subStr = SUBSTRING(subject, startPos, len);
IF subStr REGEXP usePattern THEN
SET result = IF(startInc = 1,
CONCAT(result, replacement), CONCAT(replacement, result));
SET startPos = startPos + startInc * len;
LEAVE lenLoop;
END IF;
SET len = len + lenInc;
END WHILE;
IF (startPos = prevStartPos) THEN
SET result = IF(startInc = 1, CONCAT(result, SUBSTRING(subject, startPos, 1)),
CONCAT(SUBSTRING(subject, startPos, 1), result));
SET startPos = startPos + startInc;
END IF;
END WHILE;
IF startInc = 1 AND startPos <= CHAR_LENGTH(subject) THEN
SET result = CONCAT(result, RIGHT(subject, CHAR_LENGTH(subject) + 1 - startPos));
ELSEIF startInc = -1 AND startPos >= 1 THEN
SET result = CONCAT(LEFT(subject, startPos), result);
END IF;
ELSE
SET result = subject;
END IF;
RETURN result;
END//
DELIMITER ;
Demo
Limitations
\1
, \2
etc.) to replace capturing groups. If this functionality is needed, please see this answer which attempts to provide a workaround by updating the function to allow a secondary find and replace within each found match (at the expense of increased complexity).^
and/or $
is used in the pattern, they must be at the very start and very end respectively - e.g. patterns such as (^start|end$)
are not supported.a.*?b.*
) is not supported.Usage Examples
The function has been used to answer the following StackOverflow questions:
@Alan's answer will do what you're looking for, but this solution fails when you use the responsive capabilities of Bootstrap. In your case, you're using the xs
sizes so you won't notice, but if you used anything else (e.g. col-sm
, col-md
, etc), you'd understand.
Another approach is to play with margins and padding. See the updated fiddle: http://jsfiddle.net/jz8j247x/1/
.left-side {
background-color: blue;
padding-bottom: 1000px;
margin-bottom: -1000px;
height: 100%;
}
.something {
height: 100%;
background-color: red;
padding-bottom: 1000px;
margin-bottom: -1000px;
height: 100%;
}
.row {
background-color: green;
overflow: hidden;
}
An alternative approach may be to embed images in the email using the cid
method. (Basically including the image as an attachment, and then embedding it). In my experience, this approach seems to be well supported these days.
Source: https://www.campaignmonitor.com/blog/how-to/2008/08/embedding-images-revisited/
There is a parse_dates
parameter for read_csv
which allows you to define the names of the columns you want treated as dates or datetimes:
date_cols = ['col1', 'col2']
pd.read_csv(file, sep='\t', header=None, names=headers, parse_dates=date_cols)
Same problem for me. It turns out that the cause of the problem was the new JungleDisk 3.0, which rudely installs three overlays named "1Sync..." "2Sync..." and "3Sync..." pushing the Tortoise ones off the end.
Just delete those JungleDisk keys in the reg hive listed at the top (or prefix them with z_) and re-start the system and Tortoise should work fine again.
Given that this overlay limit exists in Windows and is easily hit with current tools, tool vendors really should ask during advanced installation if the user wants to install them. I have no need nor desire for the new "Sync" feature and don't really care for the tactic of stuffing the icons at the top of the list with clever naming. Shame on JungleDisk.
After trying everything, Yowsup library worked for me. The bug that I was facing was recently fixed. Anyone trying to do something with Whatsapp should try it.
There is already many of answer, but I m still contributing mine one:
public static IPAddress LocalIpAddress() {
Func<IPAddress, bool> localIpPredicate = ip =>
ip.AddressFamily == AddressFamily.InterNetwork &&
ip.ToString().StartsWith("192.168"); //check only for 16-bit block
return Dns.GetHostEntry(Dns.GetHostName()).AddressList.LastOrDefault(localIpPredicate);
}
One liner:
public static IPAddress LocalIpAddress() => Dns.GetHostEntry(Dns.GetHostName()).AddressList.LastOrDefault(ip => ip.AddressFamily == AddressFamily.InterNetwork && ip.ToString().StartsWith("192.168"));
note: Search from last because it still worked after some interfaces added into device, such as MobileHotspot,VPN or other fancy virtual adapters.
Or put the overlapping button or views inside a FrameLayout. Then, the RelativeLayout in the xml file will respect the order of child layouts as they added.
This link will open the app automatically in market:// if you are on Android and in browser if you are on PC.
https://play.app.goo.gl/?link=https://play.google.com/store/apps/details?id=com.app.id&ddl=1&pcampaignid=web_ddl_1
There are two parts to the answer:
Ensure duplicate posts don't mess with your data on the server side. To do this, embed a unique identifier in the post so that you can reject subsequent requests server side. This pattern is called Idempotent Receiver in messaging terms.
Ensure the user isn't bothered by the possibility of duplicate submits by both
Nothing you do under 2. will totally prevent duplicate submits. People can click very fast and hackers can post anyway. You always need 1. if you want to be absolutely sure there are no duplicates.
$request->flash('request',$request);
<input type="text" class="form-control" name="name" value="{{ old('name') }}">
It works for me.
To avoid escaping lot of characters:
echo <<<MYSCRIPT
... script here...
MYSCRIPT;
or just turn off php parsing for a while:
?>
...your script here
<?php
In Web.config enter the following
<system.webServer>
<httpProtocol>
<customHeaders>
<clear />
<add name="Access-Control-Allow-Credentials" value="true" />
<add name="Access-Control-Allow-Origin" value="http://localhost:123456(etc)" />
</customHeaders>
</httpProtocol>
Try This Code :
button.setVisibility(View.INVISIBLE);
Is it a global variable? If so, these are actually part of the window
object, so you can do window[objname].value
.
If it's local to a function, I don't think there's a good way to do what you want.
date_part(text, timestamp)
e.g.
date_part('month', timestamp '2001-02-16 20:38:40'),
date_part('year', timestamp '2001-02-16 20:38:40')
http://www.postgresql.org/docs/8.0/interactive/functions-datetime.html
A third solution I hardly ever see mentioned is MySQL specific and looks like this:
SELECT id, MAX(rev) AS rev
, 0+SUBSTRING_INDEX(GROUP_CONCAT(numeric_content ORDER BY rev DESC), ',', 1) AS numeric_content
FROM t1
GROUP BY id
Yes it looks awful (converting to string and back etc.) but in my experience it's usually faster than the other solutions. Maybe that just for my use cases, but I have used it on tables with millions of records and many unique ids. Maybe it's because MySQL is pretty bad at optimizing the other solutions (at least in the 5.0 days when I came up with this solution).
One important thing is that GROUP_CONCAT has a maximum length for the string it can build up. You probably want to raise this limit by setting the group_concat_max_len
variable. And keep in mind that this will be a limit on scaling if you have a large number of rows.
Anyway, the above doesn't directly work if your content field is already text. In that case you probably want to use a different separator, like \0 maybe. You'll also run into the group_concat_max_len
limit quicker.
In swift:
if self.mainScroll.contentSize.height > self.mainScroll.bounds.size.height {
let bottomOffset = CGPointMake(0, self.mainScroll.contentSize.height - self.mainScroll.bounds.size.height);
self.mainScroll.setContentOffset(bottomOffset, animated: true)
}
say you have a dict
with tuples as keys, e.g: labels = {(1,2,0): 'label_1'}
you can modify the elements of the tuple keys as follows:
formatted_labels = {(elem[0],elem[1]):labels[elem] for elem in labels}
Here, we ignore the last elements.
Here's another solution, using the ast
module:
python -c "import ast; ast.parse(open('programfile').read())"
To do it cleanly from within a Python script:
import ast, traceback
filename = 'programfile'
with open(filename) as f:
source = f.read()
valid = True
try:
ast.parse(source)
except SyntaxError:
valid = False
traceback.print_exc() # Remove to silence any errros
print(valid)
Actually the C++ standard (i.e. C++ 0x draft) says (tnx to @Xeo & @Ben Voigt for pointing that out to me):
23.2.4 Associative containers
5 For set and multiset the value type is the same as the key type. For map and multimap it is equal to pair. Keys in an associative container are immutable.
6 iterator of an associative container is of the bidirectional iterator category. For associative containers where the value type is the same as the key type, both iterator and const_iterator are constant iterators. It is unspecified whether or not iterator and const_iterator are the same type.
So VC++ 2008 Dinkumware implementation is faulty.
Old answer:
You got that error because in certain implementations of the std lib the set::iterator
is the same as set::const_iterator
.
For example libstdc++ (shipped with g++) has it (see here for the entire source code):
typedef typename _Rep_type::const_iterator iterator;
typedef typename _Rep_type::const_iterator const_iterator;
And in SGI's docs it states:
iterator Container Iterator used to iterate through a set.
const_iterator Container Const iterator used to iterate through a set. (Iterator and const_iterator are the same type.)
On the other hand VC++ 2008 Express compiles your code without complaining that you're calling non const methods on set::iterator
s.
Use str_replace
to remove the spaces first ?
Environ()
gets you the value of any environment variable. These can be found by doing the following command in the Command Prompt:
set
If you wanted to get the username, you would do:
Environ("username")
If you wanted to get the fully qualified name, you would do:
Environ("userdomain") & "\" & Environ("username")
During the preflight request, you should see the following two headers: Access-Control-Request-Method and Access-Control-Request-Headers. These request headers are asking the server for permissions to make the actual request. Your preflight response needs to acknowledge these headers in order for the actual request to work.
For example, suppose the browser makes a request with the following headers:
Origin: http://yourdomain.com
Access-Control-Request-Method: POST
Access-Control-Request-Headers: X-Custom-Header
Your server should then respond with the following headers:
Access-Control-Allow-Origin: http://yourdomain.com
Access-Control-Allow-Methods: GET, POST
Access-Control-Allow-Headers: X-Custom-Header
Pay special attention to the Access-Control-Allow-Headers response header. The value of this header should be the same headers in the Access-Control-Request-Headers request header, and it can not be '*'.
Once you send this response to the preflight request, the browser will make the actual request. You can learn more about CORS here: http://www.html5rocks.com/en/tutorials/cors/
No solution mentioned above was solved my problem. My problem was different.
First check is your port is disabled in firewall.
Go to Control Panel -> Windows Firewall -> Advance Settings -> Inbound Rules
and see any port is blocked.
A sample image is below:
If so then you can unblock the port by following steps:
Step 1:
Here you can see that the port is blocked.
Step 2: Allow the connection -> Apply -> Ok
.
That's solved my blocked problem. Happy coding :) :)
Yes, it's possible, the syntax is curl [protocol://]<host>[:port]
, for example:
curl example.com:1234
If you're using Bash, you can also use pseudo-device /dev
files to open a TCP connection, e.g.:
exec 5<>/dev/tcp/127.0.0.1/1234
echo "send some stuff" >&5
cat <&5 # Receive some stuff.
See also: More on Using Bash's Built-in /dev/tcp File (TCP/IP).
This should be easily resolved by importing headers from Angular:
import { Http, Headers } from "@angular/http";
Using only "native" Windows utilities, try the following, where "516" is the process ID that you want the image name for:
for /f "delims=," %a in ( 'tasklist /fi "PID eq 516" /nh /fo:csv' ) do ( echo %~a )
for /f %a in ( 'tasklist /fi "PID eq 516" ^| findstr "516"' ) do ( echo %a )
Or you could use wmic (the Windows Management Instrumentation Command-line tool) and get the full path to the executable:
wmic process where processId=516 get name
wmic process where processId=516 get ExecutablePath
Or you could download Microsoft PsTools, or specifically download just the pslist utility, and use PsList:
for /f %a in ( 'pslist 516 ^| findstr "516"' ) do ( echo %a )
Easily change without any headche Convert any object array to string array Object drivex[] = {1,2};
for(int i=0; i<drive.length ; i++)
{
Str[i]= drivex[i].toString();
System.out.println(Str[i]);
}
Yes, and unfortunately you cannot turn them off, or any other special characters. The options under \View\Show Symbols only turns on or off things like tabs, spaces, EOL, etc. So if you want to read some obscure coding with text in it - you actually need to look elsewhere. I also looked at changing the coding, ASCII is not listed, and that would not make the mess invisible anyway.
Example:
git tag -a v1.2 9fceb02 -m "Message here"
Where 9fceb02
is the beginning part of the commit id.
You can then push the tag using git push origin v1.2
.
You can do git log
to show all the commit id's in your current branch.
There is also a good chapter on tagging in the Pro Git book.
Warning: This creates tags with the current date (and that value is what will show on a GitHub releases page, for example). If you want the tag to be dated with the commit date, please look at another answer.
Go download HTMLAgilityPack, now! ;) Download LInk
This allows you to load and parse HTML. Then you can navigate the DOM and extract the inner values of all attributes. Seriously, it will take you about 10 lines of code at the maximum. It is one of the greatest free .net libraries out there.
Here is a sample:
string htmlContents = new System.IO.StreamReader(resultsStream,Encoding.UTF8,true).ReadToEnd();
HtmlAgilityPack.HtmlDocument doc = new HtmlAgilityPack.HtmlDocument();
doc.LoadHtml(htmlContents);
if (doc == null) return null;
string output = "";
foreach (var node in doc.DocumentNode.ChildNodes)
{
output += node.InnerText;
}
Make sure you set up the correct settings for connection pool. This is very important as I have explained in the following article: https://medium.com/@dewanwaqas/configurations-that-significantly-improves-your-app-performance-built-using-sql-server-and-net-ed044e53b60 You will see a drastic improvement in your application's performance if you follow it.
Please install at ubuntu openjdk-7-jdk
sudo apt-get install openjdk-7-jdk
on Windows try find find openjdk
You can do this using a JLabel
, but an alternative would be to style a JButton
. That way, you don't have to worry about accessibility and can just fire events using an ActionListener
.
public static void main(String[] args) throws URISyntaxException {
final URI uri = new URI("http://java.sun.com");
class OpenUrlAction implements ActionListener {
@Override public void actionPerformed(ActionEvent e) {
open(uri);
}
}
JFrame frame = new JFrame("Links");
frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
frame.setSize(100, 400);
Container container = frame.getContentPane();
container.setLayout(new GridBagLayout());
JButton button = new JButton();
button.setText("<HTML>Click the <FONT color=\"#000099\"><U>link</U></FONT>"
+ " to go to the Java website.</HTML>");
button.setHorizontalAlignment(SwingConstants.LEFT);
button.setBorderPainted(false);
button.setOpaque(false);
button.setBackground(Color.WHITE);
button.setToolTipText(uri.toString());
button.addActionListener(new OpenUrlAction());
container.add(button);
frame.setVisible(true);
}
private static void open(URI uri) {
if (Desktop.isDesktopSupported()) {
try {
Desktop.getDesktop().browse(uri);
} catch (IOException e) { /* TODO: error handling */ }
} else { /* TODO: error handling */ }
}
There are a couple of parallization bugs in SQL server with abnormal input. OPTION(MAXDOP 1) will sidestep them.
EDIT: Old. My testing was done largely on SQL 2005. Most of these seem to not exist anymore, but every once in awhile we question the assumption when SQL 2014 does something dumb and we go back to the old way and it works. We never managed to demonstrate that it wasn't just a bad plan generation on more recent cases though since SQL server can be relied on to get the old way right in newer versions. Since all cases were IO bound queries MAXDOP 1 doesn't hurt.
I was also getting this error, I deleted dlls from my debug folder and when I started a new instance for debug I got this error. For me the issue was due to the the build setting, Release was selected in the build type, I just changed it to debug and then application was working fine
Quotes:
"url: http://www.example-site.com/"
To clarify, I meant “quote the value” and originally thought the entire thing was the value. If http://www.example-site.com/
is the value, just quote it like so:
url: "http://www.example-site.com/"
Simply wrap the code you want to execute into the onload event of the window object:
window.onload = function(){
// your code here
}
Use this property for an Image view such as,
1) android:scaleType="fitXY"
- It means the Images will be stretched to fit all the sides of the parent that is based on your ImageView
!
2) By using above property, it will affect your Image resolution so if you want to maintain the resolution then add a property such as android:scaleType="centerInside"
.
WordPress does not execute PHP in post/page content by default unless it has a shortcode.
The quickest and easiest way to do this is to use a plugin that allows you to run PHP embedded in post content.
There are two other "quick and easy" ways to accomplish it without a plugin:
Make it a shortcode (put it in functions.php
and have it echo the country name) which is very easy - see here: Shortcode API at WP Codex
Put it in a template file - make a custom template for that page based on your default page template and add the PHP into the template file rather than the post content: Custom Page Templates
The WHERE
clause is always conceptually applied (the execution plan can do what it wants, obviously) prior to the GROUP BY
. It must come before the GROUP BY
in the query, and acts as a filter before things are SUM
med, which is how most of the answers here work.
You should also be aware of the optional HAVING
clause which must come after the GROUP BY
. This can be used to filter on the resulting properties of groups after GROUP
ing - for instance HAVING SUM(Amount) > 0
Try the following regex:
var removedText = self.val().replace(/[^0-9]/, '');
This will match every character that is not (^
) in the interval 0-9.
Demo.
I'm not sure if I understand your question properly, but it shouldn't matter if this div is a child of some other div. You can simply get text from all divs with class bgHeaderH2 by using following code:
$(".bgHeaderH2").text();
I have no affiliation with this program, but if you are looking to open any of this in the finder SimPholders makes it incredibly easy.
Here's a snippet of helpful code:
using System.Diagnostics;
// Prepare the process to run
ProcessStartInfo start = new ProcessStartInfo();
// Enter in the command line arguments, everything you would enter after the executable name itself
start.Arguments = arguments;
// Enter the executable to run, including the complete path
start.FileName = ExeName;
// Do you want to show a console window?
start.WindowStyle = ProcessWindowStyle.Hidden;
start.CreateNoWindow = true;
int exitCode;
// Run the external process & wait for it to finish
using (Process proc = Process.Start(start))
{
proc.WaitForExit();
// Retrieve the app's exit code
exitCode = proc.ExitCode;
}
There is much more you can do with these objects, you should read the documentation: ProcessStartInfo, Process.
When using sqlalchemy to connect to a db I this is a simple solution which is highly configurable. Use pandas.
import pandas as pd
import sqlalchemy
#sqlalchemy engine configuration
engine = sqlalchemy.create_engine....
def my_function():
#read in from sql directly into a pandas dataframe
#check the pandas documentation for additional config options
sql_DF = pd.read_sql_table("table_name", con=engine)
# "orient" is optional here but allows you to specify the json formatting you require
sql_json = sql_DF.to_json(orient="index")
return sql_json
From this looks of this MSDN article, it looks like you can now bypass the MAX_PATH restriction in Windows 10 v1607 (AKA 'anniversary update') by changing a value in the registry - or via Group Policy
Best Option for you if you just want to remove the underline from anchor link only-
#content a {
text-decoration-line:none;
}
This will remove the underline.
Further, you can use a similar syntax for manipulating other styles too using-
text-decoration: none;
text-decoration-color: blue;
text-decoration-skip: spaces;
text-decoration-style: dotted;
Hope this helps!
P.S.- This is my first answer ever!
Both values can be easily distinguished by using the strict comparison operator:
Working example at:
http://www.thesstech.com/tryme?filename=nullandundefined
Sample Code:
function compare(){
var a = null; //variable assigned null value
var b; // undefined
if (a === b){
document.write("a and b have same datatype.");
}
else{
document.write("a and b have different datatype.");
}
}
Gnome terminal defaults to ControlShiftv
OSX terminal defaults to Commandv. You can also use CommandControlv to paste the text in escaped form.
Windows 7 terminal defaults to CtrlShiftInsert
Using Stream
private static void copyFileUsingStream(File source, File dest) throws IOException {
InputStream is = null;
OutputStream os = null;
try {
is = new FileInputStream(source);
os = new FileOutputStream(dest);
byte[] buffer = new byte[1024];
int length;
while ((length = is.read(buffer)) > 0) {
os.write(buffer, 0, length);
}
} finally {
is.close();
os.close();
}
}
Using Channel
private static void copyFileUsingChannel(File source, File dest) throws IOException {
FileChannel sourceChannel = null;
FileChannel destChannel = null;
try {
sourceChannel = new FileInputStream(source).getChannel();
destChannel = new FileOutputStream(dest).getChannel();
destChannel.transferFrom(sourceChannel, 0, sourceChannel.size());
}finally{
sourceChannel.close();
destChannel.close();
}
}
Using Apache Commons IO lib:
private static void copyFileUsingApacheCommonsIO(File source, File dest) throws IOException {
FileUtils.copyFile(source, dest);
}
Using Java SE 7 Files class:
private static void copyFileUsingJava7Files(File source, File dest) throws IOException {
Files.copy(source.toPath(), dest.toPath());
}
Or try Googles Guava :
https://github.com/google/guava
docs: https://guava.dev/releases/snapshot-jre/api/docs/com/google/common/io/Files.html
Compare time:
File source = new File("/Users/sidikov/tmp/source.avi");
File dest = new File("/Users/sidikov/tmp/dest.avi");
//copy file conventional way using Stream
long start = System.nanoTime();
copyFileUsingStream(source, dest);
System.out.println("Time taken by Stream Copy = "+(System.nanoTime()-start));
//copy files using java.nio FileChannel
source = new File("/Users/sidikov/tmp/sourceChannel.avi");
dest = new File("/Users/sidikov/tmp/destChannel.avi");
start = System.nanoTime();
copyFileUsingChannel(source, dest);
System.out.println("Time taken by Channel Copy = "+(System.nanoTime()-start));
//copy files using apache commons io
source = new File("/Users/sidikov/tmp/sourceApache.avi");
dest = new File("/Users/sidikov/tmp/destApache.avi");
start = System.nanoTime();
copyFileUsingApacheCommonsIO(source, dest);
System.out.println("Time taken by Apache Commons IO Copy = "+(System.nanoTime()-start));
//using Java 7 Files class
source = new File("/Users/sidikov/tmp/sourceJava7.avi");
dest = new File("/Users/sidikov/tmp/destJava7.avi");
start = System.nanoTime();
copyFileUsingJava7Files(source, dest);
System.out.println("Time taken by Java7 Files Copy = "+(System.nanoTime()-start));
Try following LOCs
let query = firestore.collection('events');
let response = [];
await query.get().then(querySnapshot => {
let docs = querySnapshot.docs;
for (let doc of docs) {
const selectedEvent = {
id: doc.id,
item: doc.data().event
};
response.push(selectedEvent);
}
return response;
The problem id because of inp.read();
method. Its return single character at a time and because you are storing it into int type of array so that is just storing ascii value of that.
What you can do simply
for(int i=0;i<T;i++) {
String s= inp.readLine();
String[] intValues = inp.readLine().split(" ");
int[] m= new int[2];
m[0]=Integer.parseInt(intValues[0]);
m[1]=Integer.parseInt(intValues[1]);
// Checking whether I am taking the inputs correctly
System.out.println(s);
System.out.println(m[0]);
System.out.println(m[1]);
}
You need to set useaccessibleheader
attribute of the gridview to true
and also then also specify a TableSection
to be a header after calling the DataBind()
method on you GridView object. So if your grid view is mygv
mygv.UseAccessibleHeader = True
mygv.HeaderRow.TableSection = TableRowSection.TableHeader
This should result in a proper formatted grid with thead
and tbody
tags
The error message tells the exact reason: "abstract methods cannot have a body".
They can only be defined in abstract classes and interfaces (interface methods are implicitly abstract!) and the idea is, that the subclass implements the method.
Example:
public abstract class AbstractGreeter {
public abstract String getHelloMessage();
public void sayHello() {
System.out.println(getHelloMessage());
}
}
public class FrenchGreeter extends AbstractGreeter{
// we must implement the abstract method
@Override
public String getHelloMessage() {
return "bonjour";
}
}
I ran into this recently. Our organization restricts the accounts that run application pools to a select list of servers in Active Directory. I found that I had not added one of the machines hosting the application to the "Log On To" list for the account in AD.
GCC comes with a compiler runtime library (libgcc) which it uses for (among other things) providing a low-level OS abstraction for multithreading related functionality in the languages it supports. The most relevant example is libstdc++'s C++11 <thread>
, <mutex>
, and <future>
, which do not have a complete implementation when GCC is built with its internal Win32 threading model. MinGW-w64 provides a winpthreads (a pthreads implementation on top of the Win32 multithreading API) which GCC can then link in to enable all the fancy features.
I must stress this option does not forbid you to write any code you want (it has absolutely NO influence on what API you can call in your code). It only reflects what GCC's runtime libraries (libgcc/libstdc++/...) use for their functionality. The caveat quoted by @James has nothing to do with GCC's internal threading model, but rather with Microsoft's CRT implementation.
To summarize:
posix
: enable C++11/C11 multithreading features. Makes libgcc depend on libwinpthreads, so that even if you don't directly call pthreads API, you'll be distributing the winpthreads DLL. There's nothing wrong with distributing one more DLL with your application.win32
: No C++11 multithreading features.Neither have influence on any user code calling Win32 APIs or pthreads APIs. You can always use both.
Even though this question is quite old and there are great answers already, I thought I should put one more which explains 3 different approaches to solve this problem.
1st Approach
Explicitly map DateTime
property public virtual DateTime Start { get; set; }
to datetime2
in corresponding column in the table. Because by default EF will map it to datetime
.
This can be done by fluent API or data annotation.
Fluent API
In DbContext class overide OnModelCreating
and configure property Start
(for explanation reasons it's a property of EntityClass class).
protected override void OnModelCreating(DbModelBuilder modelBuilder)
{
//Configure only one property
modelBuilder.Entity<EntityClass>()
.Property(e => e.Start)
.HasColumnType("datetime2");
//or configure all DateTime Preperties globally(EF 6 and Above)
modelBuilder.Properties<DateTime>()
.Configure(c => c.HasColumnType("datetime2"));
}
Data annotation
[Column(TypeName="datetime2")]
public virtual DateTime Start { get; set; }
2nd Approach
Initialize Start
to a default value in EntityClass constructor.This is good as if for some reason the value of Start
is not set before saving the entity into the database start will always have a default value. Make sure default value is greater than or equal to SqlDateTime.MinValue ( from January 1, 1753 to December 31, 9999)
public class EntityClass
{
public EntityClass()
{
Start= DateTime.Now;
}
public DateTime Start{ get; set; }
}
3rd Approach
Make Start
to be of type nullable DateTime
-note ?
after DateTime
-
public virtual DateTime? Start { get; set; }
For more explanation read this post
After java 8, you may want to get the formatted time as below:
DateTimeFormatter.ofPattern("HH:mm:ss.SSS").format(LocalTime.now(ZoneId.of("GMT")));
char variable = 'x'; // the variable is a char whose value is lowercase x
printf("<%c>", variable); // print it with angle brackets around the character
Well you could directly substract from the value by just referencing the key. Which in my opinion is simpler.
>>> books = {}
>>> books['book'] = 3
>>> books['book'] -= 1
>>> books
{'book': 2}
In your case:
book_shop[ch1] -= 1
You would use a Shape Drawable as the layout's background and set its cornerRadius. Check this blog for a detailed tutorial
The accepted answer seems not work for me. My solution:
import time
utc_0 = int(time.mktime(datetime(1970, 01, 01).timetuple()))
def datetime2ts(dt):
"""Converts a datetime object to UTC timestamp"""
return int(time.mktime(dt.utctimetuple())) - utc_0