As a hack, you could consider having a special handling on the client side, converting 'Null' string to something that will never occur, for example, XXNULLXX and converting back on the server.
It is not pretty, but it may solve the issue for such a boundary case.
What you may want to do is include a script on all pages that does the following ... 1. find the youtube-iframe : searching for it by width and height by title or by finding www.youtube.com in its source. You can do that by ... - looping through the window.frames by a for-in loop and then filter out by the properties
inject jscript in the iframe of the current page adding the onYoutubePlayerReady must-include-function http://shazwazza.com/post/Injecting-JavaScript-into-other-frames.aspx
Add the event listeners etc..
Hope this helps
Find max values from a array Let's see how to obtain min, max values by using a single funtion
public void findMaxValue(){
int[] my_array = {1,2,,6,5,8,3,9,0,23};
int max = my_array[0];
for(int i=1; i<my_array.length; i++)
{
if(my_array[i] > max)
max = my_array[i];
}
return max;
}
same thing can do for find min value
Use angular.bootstrap(element, [modules], [config])
to manually start up AngularJS application (for more information, see the Bootstrap guide).
See the following example:
// root-app_x000D_
const rootApp = angular.module('root-app', ['app1', 'app2']);_x000D_
_x000D_
// app1_x000D_
const app1 = angular.module('app1', []);_x000D_
app1.controller('main', function($scope) {_x000D_
$scope.msg = 'App 1';_x000D_
});_x000D_
_x000D_
// app2_x000D_
const app2 = angular.module('app2', []);_x000D_
app2.controller('main', function($scope) {_x000D_
$scope.msg = 'App 2';_x000D_
});_x000D_
_x000D_
// bootstrap_x000D_
angular.bootstrap(document.querySelector('#app1'), ['app1']);_x000D_
angular.bootstrap(document.querySelector('#app2'), ['app2']);
_x000D_
<!-- [email protected] -->_x000D_
<script src="https://ajax.googleapis.com/ajax/libs/angularjs/1.7.0/angular.min.js"></script>_x000D_
_x000D_
<!-- root-app -->_x000D_
<div ng-app="root-app">_x000D_
_x000D_
<!-- app1 -->_x000D_
<div id="app1">_x000D_
<div ng-controller="main">_x000D_
{{msg}}_x000D_
</div>_x000D_
</div>_x000D_
_x000D_
<!-- app2 -->_x000D_
<div id="app2">_x000D_
<div ng-controller="main">_x000D_
{{msg}}_x000D_
</div>_x000D_
</div>_x000D_
_x000D_
</div>
_x000D_
If you guys are having this problem in sails.js just set your cors.js to include Authorization as the allowed header
/***************************************************************************_x000D_
* *_x000D_
* Which headers should be allowed for CORS requests? This is only used in *_x000D_
* response to preflight requests. *_x000D_
* *_x000D_
***************************************************************************/_x000D_
_x000D_
headers: 'Authorization' // this line here
_x000D_
I had the same problem. Debugging does not work with the stuff that comes with the OpenCV executable. you have to build your own binarys.
Then enable Microsoft Symbol Servers in Debug->options and settings->debug->symbols
When you write
df['Date'] = pd.to_datetime(df['Date'], errors='coerce')
df['Date'] = df['Date'].dt.strftime('%m/%d')
It can fixed
I had the same problem as you, Noboby can understand me, But I solved it in this way.
SELECT NAME, TELEFONE, DATA
FROM [sheet1$a1:q633]
WHERE NAME IN (SELECT * FROM [sheet2$a1:a2])
you need insert a parameter in other sheet, the SQL will consider that information like as database, then you can select the information and compare them into parameter you like.
Yes, but it's clunky as hell, e.g.
<c:choose>
<c:when test="${condition1}">
...
</c:when>
<c:when test="${condition2}">
...
</c:when>
<c:otherwise>
...
</c:otherwise>
</c:choose>
Brian Goetz, Paul Sandoz and Stuart Marks explain why during QA session at Devoxx'14.
Having generic pair class in standard library will turn into technical debt once value types introduced.
See also: Does Java SE 8 have Pairs or Tuples?
This was for my own project and I'm sharing it here too.
This one had trouble after 3.2, so the one below may work better for you:
CSS
/* adjust body when menu is open */
body.slide-active {
overflow-x: hidden
}
/*first child of #page-content so it doesn't shift around*/
.no-margin-top {
margin-top: 0px!important
}
/*wrap the entire page content but not nav inside this div if not a fixed top, don't add any top padding */
#page-content {
position: relative;
padding-top: 70px;
left: 0;
}
#page-content.slide-active {
padding-top: 0
}
/* put toggle bars on the left :: not using button */
#slide-nav .navbar-toggle {
cursor: pointer;
position: relative;
line-height: 0;
float: left;
margin: 0;
width: 30px;
height: 40px;
padding: 10px 0 0 0;
border: 0;
background: transparent;
}
/* icon bar prettyup - optional */
#slide-nav .navbar-toggle > .icon-bar {
width: 100%;
display: block;
height: 3px;
margin: 5px 0 0 0;
}
#slide-nav .navbar-toggle.slide-active .icon-bar {
background: orange
}
.navbar-header {
position: relative
}
/* un fix the navbar when active so that all the menu items are accessible */
.navbar.navbar-fixed-top.slide-active {
position: relative
}
/* screw writing importants and shit, just stick it in max width since these classes are not shared between sizes */
@media (max-width:767px) {
#slide-nav .container {
margin: 0;
padding: 0!important;
}
#slide-nav .navbar-header {
margin: 0 auto;
padding: 0 15px;
}
#slide-nav .navbar.slide-active {
position: absolute;
width: 80%;
top: -1px;
z-index: 1000;
}
#slide-nav #slidemenu {
background: #f7f7f7;
left: -100%;
width: 80%;
min-width: 0;
position: absolute;
padding-left: 0;
z-index: 2;
top: -8px;
margin: 0;
}
#slide-nav #slidemenu .navbar-nav {
min-width: 0;
width: 100%;
margin: 0;
}
#slide-nav #slidemenu .navbar-nav .dropdown-menu li a {
min-width: 0;
width: 80%;
white-space: normal;
}
#slide-nav {
border-top: 0
}
#slide-nav.navbar-inverse #slidemenu {
background: #333
}
/* this is behind the navigation but the navigation is not inside it so that the navigation is accessible and scrolls*/
#slide-nav #navbar-height-col {
position: fixed;
top: 0;
height: 100%;
width: 80%;
left: -80%;
background: #eee;
}
#slide-nav.navbar-inverse #navbar-height-col {
background: #333;
z-index: 1;
border: 0;
}
#slide-nav .navbar-form {
width: 100%;
margin: 8px 0;
text-align: center;
overflow: hidden;
/*fast clearfixer*/
}
#slide-nav .navbar-form .form-control {
text-align: center
}
#slide-nav .navbar-form .btn {
width: 100%
}
}
@media (min-width:768px) {
#page-content {
left: 0!important
}
.navbar.navbar-fixed-top.slide-active {
position: fixed
}
.navbar-header {
left: 0!important
}
}
HTML
<div class="navbar navbar-inverse navbar-fixed-top" role="navigation" id="slide-nav">
<div class="container">
<div class="navbar-header">
<a class="navbar-toggle">
<span class="sr-only">Toggle navigation</span>
<span class="icon-bar"></span>
<span class="icon-bar"></span>
<span class="icon-bar"></span>
</a>
<a class="navbar-brand" href="#">Project name</a>
</div>
<div id="slidemenu">
<form class="navbar-form navbar-right" role="form">
<div class="form-group">
<input type="search" placeholder="search" class="form-control">
</div>
<button type="submit" class="btn btn-primary">Search</button>
</form>
<ul class="nav navbar-nav">
<li class="active"><a href="#">Home</a></li>
<li><a href="#about">About</a></li>
<li><a href="#contact">Contact</a></li>
<li class="dropdown"> <a href="#" class="dropdown-toggle" data-toggle="dropdown">Dropdown <b class="caret"></b></a>
<ul class="dropdown-menu">
<li><a href="#">Action</a></li>
<li><a href="#">Another action</a></li>
<li><a href="#">Something else here</a></li>
<li class="divider"></li>
<li class="dropdown-header">Nav header</li>
<li><a href="#">Separated link</a></li>
<li><a href="#">One more separated link</a></li>
<li><a href="#">Action</a></li>
<li><a href="#">Another action</a></li>
<li><a href="#">Something else here</a></li>
<li class="divider"></li>
<li class="dropdown-header">Nav header</li>
<li><a href="#">Separated link</a></li>
<li><a href="#">One more separated link</a></li>
<li><a href="#">Action</a></li>
<li><a href="#">Another action</a></li>
<li><a href="#">Something else here</a></li>
<li class="divider"></li>
<li class="dropdown-header">Nav header</li>
<li><a href="#">Separated link test long title goes here</a></li>
<li><a href="#">One more separated link</a></li>
</ul>
</li>
</ul>
</div>
</div>
</div>
jQuery
$(document).ready(function () {
//stick in the fixed 100% height behind the navbar but don't wrap it
$('#slide-nav.navbar .container').append($('<div id="navbar-height-col"></div>'));
// Enter your ids or classes
var toggler = '.navbar-toggle';
var pagewrapper = '#page-content';
var navigationwrapper = '.navbar-header';
var menuwidth = '100%'; // the menu inside the slide menu itself
var slidewidth = '80%';
var menuneg = '-100%';
var slideneg = '-80%';
$("#slide-nav").on("click", toggler, function (e) {
var selected = $(this).hasClass('slide-active');
$('#slidemenu').stop().animate({
left: selected ? menuneg : '0px'
});
$('#navbar-height-col').stop().animate({
left: selected ? slideneg : '0px'
});
$(pagewrapper).stop().animate({
left: selected ? '0px' : slidewidth
});
$(navigationwrapper).stop().animate({
left: selected ? '0px' : slidewidth
});
$(this).toggleClass('slide-active', !selected);
$('#slidemenu').toggleClass('slide-active');
$('#page-content, .navbar, body, .navbar-header').toggleClass('slide-active');
});
var selected = '#slidemenu, #page-content, body, .navbar, .navbar-header';
$(window).on("resize", function () {
if ($(window).width() > 767 && $('.navbar-toggle').is(':hidden')) {
$(selected).removeClass('slide-active');
}
});
});
This is for others who may encounter the following requirements:
If you're like me (using WPF with .NET 4.5) and found that the solutions involving style triggers simply didn't work, here's my solution:
Replace the ControlTemplate of the ListViewItem in a style:
<ListView ItemsSource="{Binding MyStrings}" ItemTemplate="{StaticResource dtStrings}">
<ListView.ItemContainerStyle>
<Style TargetType="ListViewItem">
<Setter Property="Template">
<Setter.Value>
<ControlTemplate TargetType="ListViewItem">
<ContentPresenter/>
</ControlTemplate>
</Setter.Value>
</Setter>
</Style>
</ListView.ItemContainerStyle>
</ListView>
..And the DataTemplate:
<DataTemplate x:Key="dtStrings">
<Border Background="LightCoral" Width="80" Height="24" Margin="1">
<Grid >
<Border Grid.ColumnSpan="2" Background="#88FF0000" Visibility="{Binding RelativeSource={RelativeSource AncestorType=ListViewItem}, Path=IsMouseOver, Converter={StaticResource conBoolToVisibilityTrueIsVisibleFalseIsCollapsed}}"/>
<Rectangle Grid.Column="0" Fill="Lime" Width="10" HorizontalAlignment="Left" Visibility="{Binding RelativeSource={RelativeSource AncestorType=ListViewItem}, Path=IsSelected, Converter={StaticResource conBoolToVisibilityTrueIsVisibleFalseIsCollapsed}}" />
<TextBlock Grid.Column="1" Text="{Binding}" HorizontalAlignment="Center" VerticalAlignment="Center" Foreground="White" />
</Grid>
</Border>
</DataTemplate>
Results in this at runtime (item 'B' is selected, item 'D' has mouse over):
The message that you are getting is not for the default Exception of Python:
For a fresh python list, IndexError
is thrown only on index not being in range (even docs say so).
>>> l = []
>>> l[1]
IndexError: list index out of range
If we try passing multiple items to list, or some other value, we get the TypeError
:
>>> l[1, 2]
TypeError: list indices must be integers, not tuple
>>> l[float('NaN')]
TypeError: list indices must be integers, not float
However, here, you seem to be using matplotlib
that internally uses numpy
for handling arrays. On digging deeper through the codebase for numpy
, we see:
static NPY_INLINE npy_intp
unpack_tuple(PyTupleObject *index, PyObject **result, npy_intp result_n)
{
npy_intp n, i;
n = PyTuple_GET_SIZE(index);
if (n > result_n) {
PyErr_SetString(PyExc_IndexError,
"too many indices for array");
return -1;
}
for (i = 0; i < n; i++) {
result[i] = PyTuple_GET_ITEM(index, i);
Py_INCREF(result[i]);
}
return n;
}
where, the unpack method will throw an error if it the size of the index is greater than that of the results.
So, Unlike Python which raises a TypeError
on incorrect Indexes, Numpy raises the IndexError
because it supports multidimensional arrays.
Include sites-available/default
in sites-enabled/default
. It requires only one line.
In sites-enabled/default
(new config version?):
It seems that the include path is relative to the file that included it
include sites-available/default;
See the include
documentation.
I believe that certain versions of nginx allows including/linking to other files purely by having a single line with the relative path to the included file. (At least that's what it looked like in some "inherited" config files I've been using, until a new nginx version broke them.)
In sites-enabled/default
(old config version?):
It seems that the include path is relative to the current file
../sites-available/default
This is called type assertion in TypeScript, and since TypeScript 1.6, there are two ways to express this:
// Original syntax
var markerSymbolInfo = <MarkerSymbolInfo> symbolInfo;
// Newer additional syntax
var markerSymbolInfo = symbolInfo as MarkerSymbolInfo;
Both alternatives are functionally identical. The reason for introducing the as
-syntax is that the original syntax conflicted with JSX, see the design discussion here.
If you are in a position to choose, just use the syntax that you feel more comfortable with. I personally prefer the as
-syntax as it feels more fluent to read and write.
We had tons of issues here, namely with the proxy support. We ended-up using Pulse: http://www.poweredbypulse.com/
Pulse has built-in support for a few plugin, however, you can add third-party plugin and even local jar file quite easily.
Strangely it does not always use the built-in Eclipse feature, so sometimes when Eclipse become difficult ( like in our case for the proxy business ), you can work-around it with Pulse.
Node.js doesn't use threading. According to its inventor that's a key feature. At the time of its invention, threads were slow, problematic, and difficult. Node.js was created as the result of an investigation into an efficient single-core alternative. Most Node.js enthusiasts still cite ye olde argument as if threads haven't been improved over the past 50 years.
As you know, Node.js is used to run JavaScript. The JavaScript language has also developed over the years. It now has ways of using multiple cores - i.e. what Threads do. So, via advancements in JavaScript, you can do some multi-core multi-tasking in your applications. user158 points out that Node.js is playing with it a bit. I don't know anything about that. But why wait for Node.js to approve of what JavaScript has to offer.
Google for JavaScript multi-threading instead of Node.js multi-threading. You'll find out about Web Workers, Promises, and other things.
There's only one registered mediatype for SVG, and that's the one you listed, image/svg+xml
. You can of course serve SVG as XML too, though browsers tend to behave differently in some scenarios if you do, for example I've seen cases where SVG used in CSS backgrounds fail to display unless served with the image/svg+xml
mediatype.
Yes - their performance characteristics differ significantly. It would probably be better to call them SortedList
and SortedTree
as that reflects the implementation more closely.
Look at the MSDN docs for each of them (SortedList
, SortedDictionary
) for details of the performance for different operations in different situtations. Here's a nice summary (from the SortedDictionary
docs):
The
SortedDictionary<TKey, TValue>
generic class is a binary search tree with O(log n) retrieval, where n is the number of elements in the dictionary. In this, it is similar to theSortedList<TKey, TValue>
generic class. The two classes have similar object models, and both have O(log n) retrieval. Where the two classes differ is in memory use and speed of insertion and removal:
SortedList<TKey, TValue>
uses less memory thanSortedDictionary<TKey, TValue>
.
SortedDictionary<TKey, TValue>
has faster insertion and removal operations for unsorted data, O(log n) as opposed to O(n) forSortedList<TKey, TValue>
.If the list is populated all at once from sorted data,
SortedList<TKey, TValue>
is faster thanSortedDictionary<TKey, TValue>
.
(SortedList
actually maintains a sorted array, rather than using a tree. It still uses binary search to find elements.)
This is explained quite well in the Python documentation:
repr(object): Return a string containing a printable representation of an object. This is the same value yielded by conversions (reverse quotes). It is sometimes useful to be able to access this operation as an ordinary function. For many types, this function makes an attempt to return a string that would yield an object with the same value when passed to
eval()
, otherwise the representation is a string enclosed in angle brackets that contains the name of the type of the object together with additional information often including the name and address of the object. A class can control what this function returns for its instances by defining a__repr__()
method.
So what you're seeing here is the default implementation of __repr__
, which is useful for serialization and debugging.
IE11 uses an older version of the Grid specification.
The properties you are using don't exist in the older grid spec. Using prefixes makes no difference.
Here are three problems I see right off the bat.
repeat()
The repeat()
function doesn't exist in the older spec, so it isn't supported by IE11.
You need to use the correct syntax, which is covered in another answer to this post, or declare all row and column lengths.
Instead of:
.grid {
display: -ms-grid;
display: grid;
-ms-grid-columns: repeat( 4, 1fr );
grid-template-columns: repeat( 4, 1fr );
-ms-grid-rows: repeat( 4, 270px );
grid-template-rows: repeat( 4, 270px );
grid-gap: 30px;
}
Use:
.grid {
display: -ms-grid;
display: grid;
-ms-grid-columns: 1fr 1fr 1fr 1fr; /* adjusted */
grid-template-columns: repeat( 4, 1fr );
-ms-grid-rows: 270px 270px 270px 270px; /* adjusted */
grid-template-rows: repeat( 4, 270px );
grid-gap: 30px;
}
Older spec reference: https://www.w3.org/TR/2011/WD-css3-grid-layout-20110407/#grid-repeating-columns-and-rows
span
The span
keyword doesn't exist in the older spec, so it isn't supported by IE11. You'll have to use the equivalent properties for these browsers.
Instead of:
.grid .grid-item.height-2x {
-ms-grid-row: span 2;
grid-row: span 2;
}
.grid .grid-item.width-2x {
-ms-grid-column: span 2;
grid-column: span 2;
}
Use:
.grid .grid-item.height-2x {
-ms-grid-row-span: 2; /* adjusted */
grid-row: span 2;
}
.grid .grid-item.width-2x {
-ms-grid-column-span: 2; /* adjusted */
grid-column: span 2;
}
Older spec reference: https://www.w3.org/TR/2011/WD-css3-grid-layout-20110407/#grid-row-span-and-grid-column-span
grid-gap
The grid-gap
property, as well as its long-hand forms grid-column-gap
and grid-row-gap
, don't exist in the older spec, so they aren't supported by IE11. You'll have to find another way to separate the boxes. I haven't read the entire older spec, so there may be a method. Otherwise, try margins.
There was some discussion in the old spec about grid item auto placement, but the feature was never implemented in IE11. (Auto placement of grid items is now standard in current browsers).
So unless you specifically define the placement of grid items, they will stack in cell 1,1.
Use the -ms-grid-row
and -ms-grid-column
properties.
Very common.
do_stuff(thingy) {
lock(thingy);
foo;
if (foo failed) {
status = -EFOO;
goto OUT;
}
bar;
if (bar failed) {
status = -EBAR;
goto OUT;
}
do_stuff_to(thingy);
OUT:
unlock(thingy);
return status;
}
The only case I ever use goto
is for jumping forwards, usually out of blocks, and never into blocks. This avoids abuse of do{}while(0)
and other constructs which increase nesting, while still maintaining readable, structured code.
Why do like tuples? It's like anonymous types: no names. Can not understand structure of data.
I like classic classes
class FoodItem
{
public int Position { get; set; }
public string Name { get; set; }
}
List<FoodItem> list = new List<FoodItem>
{
new FoodItem { Position = 1, Name = "apple" },
new FoodItem { Position = 2, Name = "kiwi" }
};
A singular intelligent thought occurred to me after a long day of repair/rebuild/upgrades of the SDK/NDK & JDK. The environment vars need examined, as the fix for my AVD 'GalaxyS3' missing kernel file was to expand the system-images reference to absolute.
image.sysdir.1=C:\Android\sdk\system-images\android-19\armeabi-v7a\
Adding the "C:....sdk\" to the 'image.sysdir.1=' entry in the 'workspace'.android\avd\GalaxyS3.avd\config.ini file solved the problem (for now).
In java, String is immutable. Being immutable we mean that once a String is created, we can not change its value. StringBuffer is mutable. Once a StringBuffer object is created, we just append the content to the value of object instead of creating a new object. StringBuilder is similar to StringBuffer but it is not thread-safe. Methods of StingBuilder are not synchronized but in comparison to other Strings, the Stringbuilder runs fastest. You can learn difference between String, StringBuilder and StringBuffer by implementing them.
Add path of your PHP to Windows System Path. The path should contain php.exe
.
After adding the path open a new command prompt and make sure php.exe
is in path by typing
C:\>php --help
Once you see proper help message from above, enable the php_ldap.dll
extension in php.ini
Also copy php_ldap.dll
from php/ext
directory to apache/bin
folder
Restart wamp and phpinfo()
will now show ldap enabled.
Since C++17 std::map
offers two new insertion methods: insert_or_assign()
and try_emplace()
, as also mentioned in the comment by sp2danny.
insert_or_assign()
Basically, insert_or_assign()
is an "improved" version of operator[]
. In contrast to operator[]
, insert_or_assign()
doesn't require the map's value type to be default constructible. For example, the following code doesn't compile, because MyClass
does not have a default constructor:
class MyClass {
public:
MyClass(int i) : m_i(i) {};
int m_i;
};
int main() {
std::map<int, MyClass> myMap;
// VS2017: "C2512: 'MyClass::MyClass' : no appropriate default constructor available"
// Coliru: "error: no matching function for call to 'MyClass::MyClass()"
myMap[0] = MyClass(1);
return 0;
}
However, if you replace myMap[0] = MyClass(1);
by the following line, then the code compiles and the insertion takes place as intended:
myMap.insert_or_assign(0, MyClass(1));
Moreover, similar to insert()
, insert_or_assign()
returns a pair<iterator, bool>
. The Boolean value is true
if an insertion occurred and false
if an assignment was done. The iterator points to the element that was inserted or updated.
try_emplace()
Similar to the above, try_emplace()
is an "improvement" of emplace()
. In contrast to emplace()
, try_emplace()
doesn't modify its arguments if insertion fails due to a key already existing in the map. For example, the following code attempts to emplace an element with a key that is already stored in the map (see *):
int main() {
std::map<int, std::unique_ptr<MyClass>> myMap2;
myMap2.emplace(0, std::make_unique<MyClass>(1));
auto pMyObj = std::make_unique<MyClass>(2);
auto [it, b] = myMap2.emplace(0, std::move(pMyObj)); // *
if (!b)
std::cout << "pMyObj was not inserted" << std::endl;
if (pMyObj == nullptr)
std::cout << "pMyObj was modified anyway" << std::endl;
else
std::cout << "pMyObj.m_i = " << pMyObj->m_i << std::endl;
return 0;
}
Output (at least for VS2017 and Coliru):
pMyObj was not inserted
pMyObj was modified anyway
As you can see, pMyObj
no longer points to the original object. However, if you replace auto [it, b] = myMap2.emplace(0, std::move(pMyObj));
by the the following code, then the output looks different, because pMyObj
remains unchanged:
auto [it, b] = myMap2.try_emplace(0, std::move(pMyObj));
Output:
pMyObj was not inserted
pMyObj pMyObj.m_i = 2
Please note: I tried to keep my explanations as short and simple as possible to fit them into this answer. For a more precise and comprehensive description, I recommend reading this article on Fluent C++.
I tried proposed solution and forward slash in the file name did not work for me, example: ...().getResourceAsStream("/my.properties"); null was returned
Removing the slash worked: ....getResourceAsStream("my.properties");
Here is from doc API: Before delegation, an absolute resource name is constructed from the given resource name using this algorithm:
If the name begins with a '/' ('\u002f'), then the absolute name of the resource is the portion of the name following the '/'.
Otherwise, the absolute name is of the following form:
modified_package_name/name
Where the modified_package_name is the package name of this object with '/' substituted for '.' ('\u002e').
Just add this sentence in your build.gradle:
compile 'com.android.support:design:23.1.1'
See Python PEP 8: Function and Variable Names:
Function names should be lowercase, with words separated by underscores as necessary to improve readability.
Variable names follow the same convention as function names.
mixedCase is allowed only in contexts where that's already the prevailing style (e.g. threading.py), to retain backwards compatibility.
Try to reinstall it with the following code:
!pip install --proxy http://username:[email protected]:8080 --upgrade --force-reinstall cx_Oracle
There are a few ways to run a batch file on start up. The one I usually use is through task scheduler. If you press the windows key then type task scheduler it will come up as an option (or find through administerative tools).
When you create a new task you can chose from trigger options such as 'At log on' for a specific user, on workstation unlock etc. Then in actions you select start a program and put the full path to your batch script (there is also an option to put any command line args required).
Here is a an example script to launch Stack Overflow in Firefox:
@echo off
title Auto launch Stack Overflow
start firefox http://stackoverflow.com/questions/tagged/python+or+sql+or+sqlite+or+plsql+or+oracle+or+windows-7+or+cmd+or+excel+or+access+or+vba+or+excel-vba+or+access-vba?sort=newest
REM Optional - I tend to log these sorts of events so that you can see what has happened afterwards
echo %date% %time%, %computername% >> %logs%\StackOverflowAuto.csv
exit
You can .split()
to get an array of strings, then loop through to convert them to numbers, like this:
var myArray = "14 2".split(" ");
for(var i=0; i<myArray.length; i++) { myArray[i] = +myArray[i]; }
//use myArray, it's an array of numbers
The +myArray[i]
is just a quick way to do the number conversion, if you're sure they're integers you can just do:
for(var i=0; i<myArray.length; i++) { myArray[i] = parseInt(myArray[i], 10); }
#include <stdio.h>
#include<stdarg.h>
int fun(int a, ...);
int main(int argc, char *argv[]){
fun(1,10);
fun(2,"cquestionbank");
return 0;
}
int fun(int a, ...){
va_list vl;
va_start(vl,a);
if(a==1)
printf("%d",va_arg(vl,int));
else
printf("\n%s",va_arg(vl,char *));
}
The calculation occurs immediately since the calculation call is bound in the template, which displays its result when quantity
changes.
Instead you could try the following approach. Change your markup to the following:
<div ng-controller="myAppController" style="text-align:center">
<p style="font-size:28px;">Enter Quantity:
<input type="text" ng-model="quantity"/>
</p>
<button ng-click="calculateQuantity()">Calculate</button>
<h2>Total Cost: Rs.{{quantityResult}}</h2>
</div>
Next, update your controller:
myAppModule.controller('myAppController', function($scope,calculateService) {
$scope.quantity=1;
$scope.quantityResult = 0;
$scope.calculateQuantity = function() {
$scope.quantityResult = calculateService.calculate($scope.quantity, 10);
};
});
Here's a JSBin example that demonstrates the above approach.
The problem with this approach is the calculated result remains visible with the old value till the button is clicked. To address this, you could hide the result whenever the quantity
changes.
This would involve updating the template to add an ng-change
on the input, and an ng-if
on the result:
<input type="text" ng-change="hideQuantityResult()" ng-model="quantity"/>
and
<h2 ng-if="showQuantityResult">Total Cost: Rs.{{quantityResult}}</h2>
In the controller add:
$scope.showQuantityResult = false;
$scope.calculateQuantity = function() {
$scope.quantityResult = calculateService.calculate($scope.quantity, 10);
$scope.showQuantityResult = true;
};
$scope.hideQuantityResult = function() {
$scope.showQuantityResult = false;
};
These updates can be seen in this JSBin demo.
Recently i found a git repo that makes it easy.
You can try it.
Best regards.
You can define a global alias so you can invoke a short log in a more comfortable way:
git config --global alias.slog "log --pretty=oneline --abbrev-commit"
Then you can call it using git slog
(it even works with autocompletion if you have it enabled).
Try this code:
For Each aSheet In Worksheets
Select Case aSheet.Name
Case "ID Sheet", "Summary"
Application.DisplayAlerts = False
aSheet.Delete
Application.DisplayAlerts = True
End Select
Next aSheet
I have replaced the printf
calls with calls to warning
in the C-code now. It will be effective in the version 2.17.2 which should be available tomorrow night. Then you should be able to avoid the warnings with suppressWarnings()
or any of the other above mentioned methods.
suppressWarnings({ your code })
I was having a heck of a time trying to accomplish this. I didn't want to use a Flash solution, and none of the jQuery libraries I looked at were reliable across all browsers.
I came up with my own solution, which is implemented completely in CSS (except for the onclick style change to make the button appear 'clicked').
You can try a working example here: http://jsfiddle.net/VQJ9V/307/ (Tested in FF 7, IE 9, Safari 5, Opera 11 and Chrome 14)
It works by creating a big file input (with font-size:50px), then wrapping it in a div that has a fixed size and overflow:hidden. The input is then only visible through this "window" div. The div can be given a background image or color, text can be added, and the input can be made transparent to reveal the div background:
HTML:
<div class="inputWrapper">
<input class="fileInput" type="file" name="file1"/>
</div>
CSS:
.inputWrapper {
height: 32px;
width: 64px;
overflow: hidden;
position: relative;
cursor: pointer;
/*Using a background color, but you can use a background image to represent a button*/
background-color: #DDF;
}
.fileInput {
cursor: pointer;
height: 100%;
position:absolute;
top: 0;
right: 0;
z-index: 99;
/*This makes the button huge. If you want a bigger button, increase the font size*/
font-size:50px;
/*Opacity settings for all browsers*/
opacity: 0;
-moz-opacity: 0;
filter:progid:DXImageTransform.Microsoft.Alpha(opacity=0)
}
Let me know if there are any problems with it and I'll try to fix them.
You need to edit the environment variable named PATH
, and add ;c:\python27
to the end of that. The semicolon separates one pathname from another (you will already have several things in your PATH
).
Alternately, you can just type
c:\python27\python
at the command prompt without having to modify any environment variables at all.
This is indeed rather odd.
If aSourceDictionary
were a dictionary, I don't believe it is possible for your code to fail in the manner you describe.
This leads to two hypotheses:
The code you're actually running is not identical to the code in your question (perhaps an earlier or later version?)
aSourceDictionary
is in fact not a dictionary, but is some other structure (for example, a list).
You could easily use:
label1.Text = dateTimePicker1.Value.Date.ToString("dd/MM/yyyy")
and if you want to change '/' or '-', just add this:
label1.Text = label1.Text.Replace(".", "-")
More info about DateTimePicker.CustomFormat Property: Link
I would not change the constraints, instead, you can insert a new record in the table_1 with the primary key (id_no = 7008255601088). This is nothing but a duplicate row of the id_no = 8008255601088. so now patient_address with the foreign key constraint (id_no = 8008255601088) can be updated to point to the record with the new ID(ID which needed to be updated), which is updating the id_no to id_no =7008255601088.
Then you can remove the initial primary key row with id_no =7008255601088.
Three steps include:
Here is my solution which works fine with float_range(-1, 0, 0.01) and works without floating point representation errors. It is not very fast, but works fine:
from decimal import Decimal
def get_multiplier(_from, _to, step):
digits = []
for number in [_from, _to, step]:
pre = Decimal(str(number)) % 1
digit = len(str(pre)) - 2
digits.append(digit)
max_digits = max(digits)
return float(10 ** (max_digits))
def float_range(_from, _to, step, include=False):
"""Generates a range list of floating point values over the Range [start, stop]
with step size step
include=True - allows to include right value to if possible
!! Works fine with floating point representation !!
"""
mult = get_multiplier(_from, _to, step)
# print mult
int_from = int(round(_from * mult))
int_to = int(round(_to * mult))
int_step = int(round(step * mult))
# print int_from,int_to,int_step
if include:
result = range(int_from, int_to + int_step, int_step)
result = [r for r in result if r <= int_to]
else:
result = range(int_from, int_to, int_step)
# print result
float_result = [r / mult for r in result]
return float_result
print float_range(-1, 0, 0.01,include=False)
assert float_range(1.01, 2.06, 5.05 % 1, True) ==\
[1.01, 1.06, 1.11, 1.16, 1.21, 1.26, 1.31, 1.36, 1.41, 1.46, 1.51, 1.56, 1.61, 1.66, 1.71, 1.76, 1.81, 1.86, 1.91, 1.96, 2.01, 2.06]
assert float_range(1.01, 2.06, 5.05 % 1, False)==\
[1.01, 1.06, 1.11, 1.16, 1.21, 1.26, 1.31, 1.36, 1.41, 1.46, 1.51, 1.56, 1.61, 1.66, 1.71, 1.76, 1.81, 1.86, 1.91, 1.96, 2.01]
use stunnel on your server, to send with gmail. google it.
array_slice
returns a slice of an array
$sliced_array = array_slice($array, 0, 5)
is the code you want in your case to return the first five elements
If you even did not get scroll after doing what is written above .....
Set the android:layout_height="250dp"
or you can say xdp
where x
can be any numerical value.
You can delete the service:
sc delete ServiceName
Then recreate the service.
You can try changing it to this:
If myTableData.Rows.Count > 0 Then
For i As Integer = 0 To myTableData.Rows.Count - 1
''Dim DataType() As String = myTableData.Rows(i).Item(1)
ListBox2.Items.Add(myTableData.Rows(i)(1))
Next
End If
Note: Your loop needs to be one less than the row count since it's a zero-based index.
<p>
tags have built in padding and margin. You could create a CSS selector combined with some javascript for instances when your <p>
is empty. Probably overkill, but it should do what you need it to do.
CSS example: .NoPaddingOrMargin {padding: 0px; margin:0px}
If you are using a class from another project, the project needs to re-build and create re-the dll. Make sure "Build" is checked for that project on Build -> Configuration Manager in Visual Studio. So the reference project will re-build and update the dll.
This dint work for me. So instead I opened the same link (python file from internet explorer)in chrome and it asked me for a password . I set the password in anaconda prompt using the command : $jupyter notebook password
there any rule I can follow to be sure that my app executes my own code just in the main thread?
Typically you wouldn't need to do anything to ensure this — your list of things is usually enough. Unless you're interacting with some API that happens to spawn a thread and run your code in the background, you'll be running on the main thread.
If you want to be really sure, you can do things like
[self performSelectorOnMainThread:@selector(myMethod:) withObject:anObj waitUntilDone:YES];
to execute a method on the main thread. (There's a GCD equivalent too.)
I've tried this:
<a href="whatsapp://send?abid=phonenumber&text=Hello%2C%20World!">whatsapp</a>
changing 'phonenumber' into a specific phonenumber. This doesn't work completely, but when they click on the link it does open whatsapp and if they click on a contact the message is filled in.
If you want to open a specific person in chat you can, but without text filled in.
<a href="intent://send/phonenumber#Intent;scheme=smsto;package=com.whatsapp;action=android.intent.action.SENDTO;end">test</a>
You'll probably have to make a choice between the two.
some links to help you Sharing link on WhatsApp from mobile website (not application) for Android https://www.whatsapp.com/faq/nl/android/28000012
Hope this helps
(I tested this with google chrome on an android phone)
Why does it implement its methods? How can it implement its methods when an interface can't contain method body? How can it implement the methods when it extends the other interface and not implement it? What is the purpose of an interface implementing another interface?
Interface does not implement the methods of another interface but just extends them.
One example where the interface extension is needed is: consider that you have a vehicle interface with two methods moveForward
and moveBack
but also you need to incorporate the Aircraft which is a vehicle but with some addition methods like moveUp
, moveDown
so
in the end you have:
public interface IVehicle {
bool moveForward(int x);
bool moveBack(int x);
};
and airplane:
public interface IAirplane extends IVehicle {
bool moveDown(int x);
bool moveUp(int x);
};
Maybe it is sufficient if you wrap a Card
around the Widget
and play a bit with the elevation
prop.
I use this trick to make my ListTile
look nicer in Lists
.
For your code it could look like this:
return Card(
elevation: 3, // PLAY WITH THIS VALUE
child: Row(
crossAxisAlignment: CrossAxisAlignment.center,
children: <Widget>[
// ... MORE OF YOUR CODE
],
),
);
mysql_*
functions to MySQLi APIThe reason for the new mysqli extension was to take advantage of new features found in MySQL systems versions 4.1.3 and newer. When changing your existing code from mysql_*
to mysqli API you should avail of these improvements, otherwise your upgrade efforts could go in vain.
The mysqli extension has a number of benefits, the key enhancements over the mysql extension being:
When upgrading from mysql_*
functions to MySQLi, it is important to take these features into consideration, as well as some changes in the way this API should be used.
The new mysqli object-oriented interface is a big improvement over the older functions and it can make your code cleaner and less susceptible to typographical errors. There is also the procedural version of this API, but its use is discouraged as it leads to less readable code, which is more prone to errors.
To open new connection to the database with MySQLi you need to create new instance of MySQLi class.
$mysqli = new \mysqli($host, $user, $password, $dbName);
$mysqli->set_charset('utf8mb4');
Using procedural style it would look like this:
$mysqli = mysqli_connect($host, $user, $password, $dbName);
mysqli_set_charset($mysqli, 'utf8mb4');
Keep in mind that only the first 3 parameters are the same as in mysql_connect
. The same code in the old API would be:
$link = mysql_connect($host, $user, $password);
mysql_select_db($dbName, $link);
mysql_query('SET NAMES utf8');
If your PHP code relied on implicit connection with default parameters defined in php.ini, you now have to open the MySQLi connection passing the parameters in your code, and then provide the connection link to all procedural functions or use the OOP style.
For more information see the article: How to connect properly using mysqli
This is a big one. MySQL has added support for native prepared statements in MySQL 4.1 (2004). Prepared statements are the best way to prevent SQL injection. It was only logical that support for native prepared statements was added to PHP. Prepared statements should be used whenever data needs to be passed along with the SQL statement (i.e. WHERE
, INSERT
or UPDATE
are the usual use cases).
The old MySQL API had a function to escape the strings used in SQL called mysql_real_escape_string
, but it was never intended for protection against SQL injections and naturally shouldn't be used for the purpose.
The new MySQLi API offers a substitute function mysqli_real_escape_string
for backwards compatibility, which suffers from the same problems as the old one and therefore should not be used unless prepared statements are not available.
The old mysql_* way:
$login = mysql_real_escape_string($_POST['login']);
$result = mysql_query("SELECT * FROM users WHERE user='$login'");
The prepared statement way:
$stmt = $mysqli->prepare('SELECT * FROM users WHERE user=?');
$stmt->bind_param('s', $_POST['login']);
$stmt->execute();
$result = $stmt->get_result();
Prepared statements in MySQLi can look a little off-putting to beginners. If you are starting a new project then deciding to use the more powerful and simpler PDO API might be a good idea.
Some old-school PHP developers are used to checking for SQL errors manually and displaying them directly in the browser as means of debugging. However, such practice turned out to be not only cumbersome, but also a security risk. Thankfully MySQLi has improved error reporting capabilities.
MySQLi is able to report any errors it encounters as PHP exceptions. PHP exceptions will bubble up in the script and if unhandled will terminate it instantly, which means that no statement after the erroneous one will ever be executed. The exception will trigger PHP Fatal error and will behave as any error triggered from PHP core obeying the display_errors
and log_errors
settings. To enable MySQLi exceptions use the line mysqli_report(MYSQLI_REPORT_ERROR | MYSQLI_REPORT_STRICT)
and insert it right before you open the DB connection.
mysqli_report(MYSQLI_REPORT_ERROR | MYSQLI_REPORT_STRICT);
$mysqli = new \mysqli($host, $user, $password, $dbName);
$mysqli->set_charset('utf8mb4');
If you were used to writing code such as:
$result = mysql_query('SELECT * WHERE 1=1');
if (!$result) {
die('Invalid query: ' . mysql_error());
}
or
$result = mysql_query('SELECT * WHERE 1=1') or die(mysql_error());
you no longer need to die()
in your code.
mysqli_report(MYSQLI_REPORT_ERROR | MYSQLI_REPORT_STRICT);
$mysqli = new \mysqli($host, $user, $password, $dbName);
$mysqli->set_charset('utf8mb4');
$result = $mysqli->query('SELECT * FROM non_existent_table');
// The following line will never be executed due to the mysqli_sql_exception being thrown above
foreach ($result as $row) {
// ...
}
If for some reason you can't use exceptions, MySQLi has equivalent functions for error retrieval. You can use mysqli_connect_error()
to check for connection errors and mysqli_error($mysqli)
for any other errors. Pay attention to the mandatory argument in mysqli_error($mysqli)
or alternatively stick to OOP style and use $mysqli->error
.
$result = $mysqli->query('SELECT * FROM non_existent_table') or trigger_error($mysqli->error, E_USER_ERROR);
See these posts for more explanation:
mysqli or die, does it have to die?
How to get MySQLi error information in different environments?
Unfortunately not every function from mysql_*
has its counterpart in MySQLi only with an "i" added in the name and connection link as first parameter. Here is a list of some of them:
mysql_client_encoding()
has been replaced by mysqli_character_set_name($mysqli)
mysql_create_db
has no counterpart. Use prepared statements or mysqli_query
insteadmysql_drop_db
has no counterpart. Use prepared statements or mysqli_query
instead mysql_db_name
& mysql_list_dbs
support has been dropped in favour of SQL's SHOW DATABASES
mysql_list_tables
support has been dropped in favour of SQL's SHOW TABLES FROM dbname
mysql_list_fields
support has been dropped in favour of SQL's SHOW COLUMNS FROM sometable
mysql_db_query
-> use mysqli_select_db()
then the query or specify the DB name in the query mysql_fetch_field($result, 5)
-> the second parameter (offset) is not present in mysqli_fetch_field
. You can use mysqli_fetch_field_direct
keeping in mind the different results returnedmysql_field_flags
, mysql_field_len
, mysql_field_name
, mysql_field_table
& mysql_field_type
-> has been replaced with mysqli_fetch_field_direct
mysql_list_processes
has been removed. If you need thread ID use mysqli_thread_id
mysql_pconnect
has been replaced with mysqli_connect()
with p:
host prefixmysql_result
-> use mysqli_data_seek()
in conjunction with mysqli_field_seek()
and mysqli_fetch_field()
mysql_tablename
support has been dropped in favour of SQL's SHOW TABLES
mysql_unbuffered_query
has been removed. See this article for more information Buffered and Unbuffered queriesignorecase
to false
in git configAs the original post is about "Changing capitalization of filenames in Git":
If you are trying to change capitalisation of a filename in your project, you do not need to force rename it from Git. IMO, I would rather change the capitalisation from my IDE/editor and make sure that I configure Git properly to pick up the renaming.
By default, a Git template is set to ignore case (Git case insensitive). To verify you have the default template, use --get
to retrieve the value for a specified key. Use --local
and --global
to indicate to Git whether to pick up a configuration key-value from your local Git repository configuration or global one. As an example, if you want to lookup your global key core.ignorecase
:
git config --global --get core.ignorecase
If this returns true
, make sure to set it as:
git config --global core.ignorecase false
(Make sure you have proper permissions to change global.) And there you have it; now your Git installation would not ignore capitalisations and treat them as changes.
As a suggestion, if you are working on multi-language projects and you feel not all projects should be treated as case-sensitive by Git, just update the local core.ignorecase
file.
The option I use is as follows:
columns.Bound(p => p.OrderDate).Format("{0:d}").ClientTemplate("#=formatDate(OrderDate)#");
function formatDate(OrderDate) {
var formatedOrderDate = kendo.format("{0:d}", OrderDate);
return formatedOrderDate;
}
For me this code worked in JavaScript like a charm!
<%= session.getAttribute("variableName")%>
hope it helps...
The init(frame:)
version is the default initializer. You must call it only after initializing your instance variables. If this view is being reconstituted from a Nib then your custom initializer will not be called, and instead the init?(coder:)
version will be called. Since Swift now requires an implementation of the required init?(coder:)
, I have updated the example below and changed the let
variable declarations to var
and optional. In this case, you would initialize them in awakeFromNib()
or at some later time.
class TestView : UIView {
var s: String?
var i: Int?
init(s: String, i: Int) {
self.s = s
self.i = i
super.init(frame: CGRect(x: 0, y: 0, width: 100, height: 100))
}
required init?(coder aDecoder: NSCoder) {
super.init(coder: aDecoder)
}
}
With text type of input you can use this for a better validation,
return (event.keyCode? (event.keyCode == 69 ? false : event.keyCode >= 48 && event.keyCode <= 57) : (event.charCode >= 48 && event.charCode <= 57))? true : event.preventDefault();
In SQL Server you can turn on and off identity insert like this:
SET IDENTITY_INSERT table_name ON
-- run your queries here
SET IDENTITY_INSERT table_name OFF
Either two different IP addresses (like recommended) or one web server is reverse-proxying the other (which is listening on a port <>80).
For instance: Apache listens on port 80, IIS on port 8080. Every http request goes to Apache first (of course). You can then decide to forward every request to a particular (named virtual) domain or every request that contains a particular directory (e.g. http://www.example.com/winapp/) to the IIS.
Advantage of this concept is that you have only one server listening to the public instead of two, you are more flexible as with two distinct servers.
Drawbacks: some webapps are crappily designed and a real pain in the ass to integrate into a reverse-proxy infrastructure. A working IIS webapp is dependent on a working Apache, so we have some inter-dependencies.
If you want code is running on multiple servers with different environments,then we have need to use dirname(FILE) in an include or include_once statement. reason is follows. 1. Do not give absolute path to include files on your server. 2. Dynamically calculate the full path like absolute path.
Use a combination of dirname(FILE) and subsequent calls to itself until you reach to the home of your '/myfile.php'. Then attach this variable that contains the path to your included files.
def xstr(s):
return s or ""
Cast to long or cast to int, be aware of the following.
These functions are one of the view functions in Excel VBA that are depending on the system regional settings. So if you use a comma in your double like in some countries in Europe, you will experience an error in the US.
E.g., in european excel-version 0,5 will perform well with CDbl(), but in US-version it will result in 5. So I recommend to use the following alternative:
Public Function CastLong(var As Variant)
' replace , by .
var = Replace(var, ",", ".")
Dim l As Long
On Error Resume Next
l = Round(Val(var))
' if error occurs, l will be 0
CastLong = l
End Function
' similar function for cast-int, you can add minimum and maximum value if you like
' to prevent that value is too high or too low.
Public Function CastInt(var As Variant)
' replace , by .
var = Replace(var, ",", ".")
Dim i As Integer
On Error Resume Next
i = Round(Val(var))
' if error occurs, i will be 0
CastInt = i
End Function
Of course you can also think of cases where people use commas and dots, e.g., three-thousand as 3,000.00. If you require functionality for these kind of cases, then you have to check for another solution.
The ISO 8601 time format does not store a time zone name, only the corresponding UTC offset is preserved.
To convert a file ctime to an ISO 8601 time string while preserving the UTC offset in Python 3:
>>> import os
>>> from datetime import datetime, timezone
>>> ts = os.path.getctime(some_file)
>>> dt = datetime.fromtimestamp(ts, timezone.utc)
>>> dt.astimezone().isoformat()
'2015-11-27T00:29:06.839600-05:00'
The code assumes that your local timezone is Eastern Time Zone (ET) and that your system provides a correct UTC offset for the given POSIX timestamp (ts
), i.e., Python has access to a historical timezone database on your system or the time zone had the same rules at a given date.
If you need a portable solution; use the pytz
module that provides access to the tz database:
>>> import os
>>> from datetime import datetime
>>> import pytz # pip install pytz
>>> ts = os.path.getctime(some_file)
>>> dt = datetime.fromtimestamp(ts, pytz.timezone('America/New_York'))
>>> dt.isoformat()
'2015-11-27T00:29:06.839600-05:00'
The result is the same in this case.
If you need the time zone name/abbreviation/zone id, store it separately.
>>> dt.astimezone().strftime('%Y-%m-%d %H:%M:%S%z (%Z)')
'2015-11-27 00:29:06-0500 (EST)'
Note: no, :
in the UTC offset and EST
timezone abbreviation is not part of the ISO 8601 time format. It is not unique.
Different libraries/different versions of the same library may use different time zone rules for the same date/timezone. If it is a future date then the rules might be unknown yet. In other words, the same UTC time may correspond to a different local time depending on what rules you use -- saving a time in ISO 8601 format preserves UTC time and the local time that corresponds to the current time zone rules in use on your platform. You might need to recalculate the local time on a different platform if it has different rules.
This code employs a simple algorithm with nested lists...
# FUNCTION getCombos: To generate all combos of an input list, consider the following sets of nested lists...
#
# [ [ [] ] ]
# [ [ [] ], [ [A] ] ]
# [ [ [] ], [ [A],[B] ], [ [A,B] ] ]
# [ [ [] ], [ [A],[B],[C] ], [ [A,B],[A,C],[B,C] ], [ [A,B,C] ] ]
# [ [ [] ], [ [A],[B],[C],[D] ], [ [A,B],[A,C],[B,C],[A,D],[B,D],[C,D] ], [ [A,B,C],[A,B,D],[A,C,D],[B,C,D] ], [ [A,B,C,D] ] ]
#
# There is a set of lists for each number of items that will occur in a combo (including an empty set).
# For each additional item, begin at the back of the list by adding an empty list, then taking the set of
# lists in the previous column (e.g., in the last list, for sets of 3 items you take the existing set of
# 3-item lists and append to it additional lists created by appending the item (4) to the lists in the
# next smallest item count set. In this case, for the three sets of 2-items in the previous list. Repeat
# for each set of lists back to the initial list containing just the empty list.
#
def getCombos(listIn = ['A','B','C','D','E','F'] ):
listCombos = [ [ [] ] ] # list of lists of combos, seeded with a list containing only the empty list
listSimple = [] # list to contain the final returned list of items (e.g., characters)
for item in listIn:
listCombos.append([]) # append an emtpy list to the end for each new item added
for index in xrange(len(listCombos)-1, 0, -1): # set the index range to work through the list
for listPrev in listCombos[index-1]: # retrieve the lists from the previous column
listCur = listPrev[:] # create a new temporary list object to update
listCur.append(item) # add the item to the previous list to make it current
listCombos[index].append(listCur) # list length and append it to the current list
itemCombo = '' # Create a str to concatenate list items into a str
for item in listCur: # concatenate the members of the lists to create
itemCombo += item # create a string of items
listSimple.append(itemCombo) # add to the final output list
return [listSimple, listCombos]
# END getCombos()
I already said that I was new to exec()
function. After doing some more digging, I came upon 2>&1
which needs to be added at the end of command in exec()
.
Thanks @mattosmat
for pointing it out in the comments too. I did not try this at once because you said it is a Linux command, I am on Windows.
So, what I have discovered, the command is actually executing in the back-end. That is why I could not see it actually running, which I was expecting to happen.
For all of you, who had similar problem, my advise is to use that command. It will point out all the errors and also tell you info/details about execution.
exec('some_command 2>&1', $output);
print_r($output); // to see the response to your command
Thanks for all the help guys, I appreciate it ;)
AlwaysUp will easily run your batch file as a service. It is similar to FireDaemon (mentioned above) and isn't free, but you may find the rich feature set to be an asset in a professional environment.
Good luck!
For SQL Server 2008 run:
EXEC sp_defaultlanguage 'username', 'british'
Static methods and variables are controlled version of 'Global' functions and variables in Java. In which methods can be accessed as classname.methodName()
or classInstanceName.methodName()
, i.e. static methods and variables can be accessed using class name as well as instances of the class.
Class can't be declared as static(because it makes no sense. if a class is declared public, it can be accessed from anywhere), inner classes can be declared static.
Yes, it is recommended to put the GA code in the footer anyway, as the page shouldnt count as a page visit until its read all the markup.
For the next guy or gal hitting this problem, here's what worked for me:
ob_start();
header('Content-Type: '.$mimetype);
ob_end_clean();
$fp = fopen($fullyQualifiedFilepath, 'rb');
fpassthru($fp);
exit;
You need all of that, and only that. If your mimetype varies, have a look at PHP's mime_content_type($filepath)
Why don't you add a space in the items of the list itself, like :
list = ["how ", "are ", "you "]
continue;
continue;
key word would start the next iteration upon invocation
For Example
for(int i= 0 ; i < 5; i++){
if(i==2){
continue;
}
System.out.print(i);
}
This will print
0134
See
This might be new in 5.7, but there is now an options array to the auth method. Simply changing
Auth::routes();
to
Auth::routes(['register' => false]);
in your routes file after running php artisan make:auth
will disable user registration.
You can use this following command line:
rake db:drop db:create db:migrate db:seed db:test:clone
If you want only the scheme and authority part of the request (protocol, host and port) use
Request.Url.GetLeftPart(UriPartial.Authority)
enums are classes in Java. They have an implicit ordinal value, starting at 0. If you want to store an additional field, then you do it like for any other class:
public enum MyEnum {
ONE(1),
TWO(2);
private final int value;
private MyEnum(int value) {
this.value = value;
}
public int getValue() {
return this.value;
}
}
Yield has two great uses,
It helps to provide custom iteration without creating temp collections.
In order to explain above two points more demonstratively, I have created a simple video you can watch it here
I always use:
NULL
for pointers'\0'
for chars0.0
for floats and doubleswhere 0 would do fine. It is a matter of signaling intent. That said, I am not anal about it.
Sure, simply bind multiple listeners to it.
Short cutting with jQuery
$("#id").bind("click", function() {_x000D_
alert("Event 1");_x000D_
});_x000D_
$(".foo").bind("click", function() {_x000D_
alert("Foo class");_x000D_
});
_x000D_
<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>_x000D_
<div class="foo" id="id">Click</div>
_x000D_
For methods which may fail, that is you specify boolean as return type, I would use the prefix try
:
if (tryCreateFreshSnapshot())
{
// ...
}
For all other cases use prefixes like is..
has..
was..
can..
allows..
..
if [ "$x" = "valid" ]; then
echo "x has the value 'valid'"
fi
If you want to do something when they don't match, replace =
with !=
. You can read more about string operations and arithmetic operations in their respective documentation.
$x
?You want the quotes around $x
, because if it is empty, your Bash script encounters a syntax error as seen below:
if [ = "valid" ]; then
==
operatorNote that Bash allows ==
to be used for equality with [
, but this is not standard.
Use either the first case wherein the quotes around $x
are optional:
if [[ "$x" == "valid" ]]; then
or use the second case:
if [ "$x" = "valid" ]; then
I would use Prototype's update
method which supports plain text, an HTML snippet or any JavaScript object that defines a toString
method.
$("field_name").update("New text");
You can write
std::list<item*>::iterator i = items.begin();
while (i != items.end())
{
bool isActive = (*i)->update();
if (!isActive) {
i = items.erase(i);
} else {
other_code_involving(*i);
i++;
}
}
You can write equivalent code with std::list::remove_if
, which is less verbose and more explicit
items.remove_if([] (item*i) {
bool isActive = (*i)->update();
if (!isActive)
return true;
other_code_involving(*i);
return false;
});
The std::vector::erase
std::remove_if
idiom should be used when items is a vector instead of a list to keep compexity at O(n) - or in case you write generic code and items might be a container with no effective way to erase single items (like a vector)
items.erase(std::remove_if(begin(items), end(items), [] (item*i) {
bool isActive = (*i)->update();
if (!isActive)
return true;
other_code_involving(*i);
return false;
}));
Something like:
jar -xf foo.jar && find . -iname "*.class" | xargs /opt/local/bin/jad -r
maybe?
Let's assume you have such history
---o---o---o---M---W---x-------x-------*
/
---A---B
Where A, B failed commits and W - is revert of M
So before I start fixing found problems I do cherry-pick of W commit to my branch
git cherry-pick -x W
Then I revert W commit on my branch
git revert W
After I can continue fixing.
The final history could look like:
---o---o---o---M---W---x-------x-------*
/ /
---A---B---W---W`----------C---D
When I send a PR it will clearly shows that PR is undo revert and adds some new commits.
You can use this to get border on one side
<?xml version="1.0" encoding="utf-8"?>
<layer-list xmlns:android="http://schemas.android.com/apk/res/android">
<item>
<shape android:shape="rectangle">
<solid android:color="#FF0000" />
</shape>
</item>
<item android:left="5dp">
<shape android:shape="rectangle">
<solid android:color="#000000" />
</shape>
</item>
</layer-list>
EDITED
As many including me wanted to have a one side border with transparent background, I have implemented a BorderDrawable
which could give me borders with different size and color in the same way as we use css. But this could not be used via xml. For supporting XML, I have added a BorderFrameLayout
in which your layout can be wrapped.
See my github for the complete source.
To avoid x !instance of Long
prob
Add
<property name="openjpa.Compatibility" value="StrictIdentityValues=false"/>
in your persistence.xml
In jupyter notebook run:
!echo y | jupyter kernelspec uninstall unwanted-kernel
In anaconda prompt run:
jupyter kernelspec uninstall unwanted-kernel
You can use parameters like that
<jsp:include page='about.jsp'>
<jsp:param name="articleId" value=""/>
</jsp:include>
and
in about.jsp you can take the paramter
<%String leftAds = request.getParameter("articleId");%>
Try to encode backslash between domain and user
pip --proxy https://domain%5Cuser:password@proxy:port install -r requirements.txt
Can you not just send the bytes as bytes, or convert each byte to a character and send as a string? Doing it like you are will take up a minimum of 85 characters in the string, when you only have 11 bytes to send. You could create a string representation of the bytes, so it'd be "[B@405217f8", which can easily be converted to a bytes
or bytearray
object in Python. Failing that, you could represent them as a series of hexadecimal digits ("5b42403430353231376638") taking up 22 characters, which could be easily decoded on the Python side using binascii.unhexlify()
.
The problem with VBA is that there are both dynamic and static arrays...
Dynamic Array Example
Dim myDynamicArray() as Variant
Static Array Example
Dim myStaticArray(10) as Variant
Dim myOtherStaticArray(0 To 10) as Variant
Using error handling to check if the array is empty works for a Dynamic Array, but a static array is by definition not empty, there are entries in the array, even if all those entries are empty.
So for clarity's sake, I named my function "IsZeroLengthArray".
Public Function IsZeroLengthArray(ByRef subject() As Variant) As Boolean
'Tell VBA to proceed if there is an error to the next line.
On Error Resume Next
Dim UpperBound As Integer
Dim ErrorNumber As Long
Dim ErrorDescription As String
Dim ErrorSource As String
'If the array is empty this will throw an error because a zero-length
'array has no UpperBound (or LowerBound).
'This only works for dynamic arrays. If this was a static array there
'would be both an upper and lower bound.
UpperBound = UBound(subject)
'Store the Error Number and then clear the Error object
'because we want VBA to treat unintended errors normally
ErrorNumber = Err.Number
ErrorDescription = Err.Description
ErrorSource = Err.Source
Err.Clear
On Error GoTo 0
'Check the Error Object to see if we have a "subscript out of range" error.
'If we do (the number is 9) then we can assume that the array is zero-length.
If ErrorNumber = 9 Then
IsZeroLengthArray = True
'If the Error number is something else then 9 we want to raise
'that error again...
ElseIf ErrorNumber <> 0 Then
Err.Raise ErrorNumber, ErrorSource, ErrorDescription
'If the Error number is 0 then we have no error and can assume that the
'array is not of zero-length
ElseIf ErrorNumber = 0 Then
IsZeroLengthArray = False
End If
End Function
I hope that this helps others as it helped me.
set one more property curl_setopt($ch, CURLOPT_SSL_VERIFYPEER , false);
Another try:
^(((\d+)\.)?(\d+)\.)?(\d+|\*)$
This gives the three parts in groups 4,5,6 BUT: They are aligned to the right. So the first non-null one of 4,5 or 6 gives the version field.
Like a lot of functions, this one can be used in many different ways to solve many different problems, I think of it as yet another tool in our toolbelts.
So far, the discussion has focused heavily on simply hiding an ID, but that is only one value, why not use it for lots of values! That is what I am doing, I use it to load up the values in a class only one view at a time, because html.beginform creates a new object and if your model object for that view already had some values passed to it, those values will be lost unless you provide a reference to those values in the beginform.
To see a great motivation for the html.hiddenfor, I recommend you see Passing data from a View to a Controller in .NET MVC - "@model" not highlighting
For those who are getting this on Mac OS X you may need to run the following command to install the XCode command-line tools, even if you already have XCode installed:
sudo xcode-select --install
Also you must agree the terms and conditions of XCode by running the following command:
sudo xcodebuild -license
Suppose you have less data, I suggest to try 70%, 80% and 90% and test which is giving better result. In case of 90% there are chances that for 10% test you get poor accuracy.
Doing password checks on client side is unsafe especially when the password is hard coded.
The safest way is password checking on server side, but even then the password should not be transmitted plain text.
Checking the password client side is possible in a "secure way":
Say "abc" is your password so your md5 would be "900150983cd24fb0d6963f7d28e17f72" (consider salting!). Now build a url containing the hash (like http://yourdomain.com/90015...f72.html).
You can do something like this:
$('.notice')
.fadeIn()
.animate({opacity: '+=0'}, 2000) // Does nothing for 2000ms
.fadeOut('fast');
Sadly, you can't just do .animate({}, 2000) -- I think this is a bug, and will report it.
Get counts of all tables in a schema and order by desc
select 'with tmp(table_name, row_number) as (' from dual
union all
select 'select '''||table_name||''',count(*) from '||table_name||' union ' from USER_TABLES
union all
select 'select '''',0 from dual) select table_name,row_number from tmp order by row_number desc ;' from dual;
Copy the entire result and execute
Factory Method patter: BeanFactory for creating instance of an object Singleton : instance type can be singleton for a context Prototype : instance type can be prototype. Builder pattern: you can also define a method in a class who will be responsible for creating complex instance.
Check for syntax errors in the php.ini file, specially before the Date paramaters, that prevent the file from being parsed correctly.
Indeed this problem is to be fixed under Preferences -> Java -> Installed JREs. If the desired JRE is apparent in the list - just select it, and that's it.
Otherwise it has to be installed on your computer first so you could add it with "Add" -> Standard VM -> Directory, in the pop-up browser window choose its path - something like "program files\Java\Jre#" -> "ok". And now you can select it from the list.
A delarative way to do that (In fact, a minor tweek to @Compito's original answer):
spring.profiles.active=test
in test/resources/application-default.properties
.test/resources/application-test.properties
for tests and override only the properties you need.var $th = $("table thead tr th").eq($td.index())
It would be best to use an id to reference the table if there is more than one.
UPDATE: The really awesome code posted by Gabe Sechan no longer works unless you explicitly request the user to grant the necessary permissions. Here is some code that you can place in your main activity to request these permissions:
if (getApplicationContext().checkSelfPermission(Manifest.permission.READ_PHONE_STATE)
!= PackageManager.PERMISSION_GRANTED) {
// Permission has not been granted, therefore prompt the user to grant permission
ActivityCompat.requestPermissions(this,
new String[]{Manifest.permission.READ_PHONE_STATE},
MY_PERMISSIONS_REQUEST_READ_PHONE_STATE);
}
if (getApplicationContext().checkSelfPermission(Manifest.permission.PROCESS_OUTGOING_CALLS)
!= PackageManager.PERMISSION_GRANTED) {
// Permission has not been granted, therefore prompt the user to grant permission
ActivityCompat.requestPermissions(this,
new String[]{Manifest.permission.PROCESS_OUTGOING_CALLS},
MY_PERMISSIONS_REQUEST_PROCESS_OUTGOING_CALLS);
}
ALSO: As someone mentioned in a comment below Gabe's post, you have to add a little snippet of code, android:enabled="true
, to the receiver in order to detect incoming calls when the app is not currently running in the foreground:
<!--This part is inside the application-->
<receiver android:name=".CallReceiver" android:enabled="true">
<intent-filter>
<action android:name="android.intent.action.PHONE_STATE" />
</intent-filter>
<intent-filter>
<action android:name="android.intent.action.NEW_OUTGOING_CALL" />
</intent-filter>
</receiver>
sesssionStorage.setObj(1,{date:Date.now(),action:'save firstObject'});
sesssionStorage.setObj(2,{date:Date.now(),action:'save 2nd object'});
//Query first object
sesssionStorage.getObj(1)
//Retrieve date created of 2nd object
new Date(sesssionStorage.getObj(1).date)
Storage.prototype.setObj = function(key, obj) {
return this.setItem(key, JSON.stringify(obj))
};
Storage.prototype.getObj = function(key) {
return JSON.parse(this.getItem(key))
};
The following is an example of how to calculate a future date based on date input (membershipssignup_date) + added months (membershipsmonths) via form fields.
The membershipsmonths field has a default value of 0
Trigger link (can be an onchange event attached to membership term field):
<a href="#" onclick="calculateMshipExp()"; return false;">Calculate Expiry Date</a>
function calculateMshipExp() {
var calcval = null;
var start_date = document.getElementById("membershipssignup_date").value;
var term = document.getElementById("membershipsmonths").value; // Is text value
var set_start = start_date.split('/');
var day = set_start[0];
var month = (set_start[1] - 1); // January is 0 so August (8th month) is 7
var year = set_start[2];
var datetime = new Date(year, month, day);
var newmonth = (month + parseInt(term)); // Must convert term to integer
var newdate = datetime.setMonth(newmonth);
newdate = new Date(newdate);
//alert(newdate);
day = newdate.getDate();
month = newdate.getMonth() + 1;
year = newdate.getFullYear();
// This is British date format. See below for US.
calcval = (((day <= 9) ? "0" + day : day) + "/" + ((month <= 9) ? "0" + month : month) + "/" + year);
// mm/dd/yyyy
calcval = (((month <= 9) ? "0" + month : month) + "/" + ((day <= 9) ? "0" + day : day) + "/" + year);
// Displays the new date in a <span id="memexp">[Date]</span> // Note: Must contain a value to replace eg. [Date]
document.getElementById("memexp").firstChild.data = calcval;
// Stores the new date in a <input type="hidden" id="membershipsexpiry_date" value="" name="membershipsexpiry_date"> for submission to database table
document.getElementById("membershipsexpiry_date").value = calcval;
}
Provided that the remote repository is origin
, and that you're interested in branch_name
:
git fetch origin
git reset --hard origin/<branch_name>
Also, you go for reset the current branch of origin
to HEAD
.
git fetch origin
git reset --hard origin/HEAD
How it works:
git fetch origin
downloads the latest from remote without trying to merge or rebase anything.
Then the git reset
resets the <branch_name>
branch to what you just fetched. The --hard
option changes all the files in your working tree to match the files in origin/branch_name
.
I wondered why this appeared during my unit tests.
I have added a method declaration to a protocol which included throws
; but the potentially throwing method wasn't even used in that particular test. Enabling Zombies in test sounded like too much trouble.
Turns out a ?K clean did the trick. I'm always flabberghasted when that solves actual problems.
Ran into this scenario today as well where I didn't want zero to be overwritten for several values. We have a file with some common utility methods for scenarios like this. Here's what I added to handle the scenario and be flexible.
function getIfNotSet(value, newValue, overwriteNull, overwriteZero) {
if (typeof (value) === 'undefined') {
return newValue;
} else if (value === null && overwriteNull === true) {
return newValue;
} else if (value === 0 && overwriteZero === true) {
return newValue;
} else {
return value;
}
}
It can then be called with the last two parameters being optional if I want to only set for undefined values or also overwrite null or 0 values. Here's an example of a call to it that will set the ID to -1 if the ID is undefined or null, but wont overwrite a 0 value.
data.ID = Util.getIfNotSet(data.ID, -1, true);
When dealing with mocking lists and iterating them, I always use something like:
@Spy
private List<Object> parts = new ArrayList<>();
numpy.full((2,2), True, dtype=bool)
const regex = new RegExp(`ReGeX${testVar}ReGeX`);
...
string.replace(regex, "replacement");
Per some of the comments, it's important to note that you may want to escape the variable if there is potential for malicious content (e.g. the variable comes from user input)
In 2019, this would usually be written using a template string, and the above code has been updated. The original answer was:
var regex = new RegExp("ReGeX" + testVar + "ReGeX");
...
string.replace(regex, "replacement");
Run this code in your powershell or cmd
Set-ExecutionPolicy -Scope Process -ExecutionPolicy Bypass
You can use attributes from the System.ComponentModel.DataAnnotations
namespace to set validation rules. Refer Model Validation - By Mike Wasson for details.
Also refer video ASP.NET Web API, Part 5: Custom Validation - Jon Galloway
Other References
You could add the following VBA code to your sheet:
Private Sub Worksheet_Change(ByVal Target As Range)
If Range("A1") > 0.5 Then
MsgBox "Discount too high"
End If
End Sub
Every time a cell is changed on the sheet, it will check the value of cell A1.
Notes:
Widor uses a different approach (Worksheet_Calculate
instead of Worksheet_Change
):
Conclusion: use Worksheet_Change
if A1 only depends on data located on the same sheet, use Worksheet_Calculate
if not.
To add to the answers above, while print can only take one parameter, it will allow for concatenation of multiple values, ie:
$count = 5;
print "This is " . $count . " values in " . $count/5 . " parameter";
This is 5 values in 1 parameter
Problem with your approach is the export
in the while
loop is happening in a sub shell, and those variable will not be available in current shell (parent shell of while loop).
Add export
command in the file itself:
export MINIENTREGA_FECHALIMITE="2011-03-31"
export MINIENTREGA_FICHEROS="informe.txt programa.c"
export MINIENTREGA_DESTINO="./destino/entrega-prac1"
Then you need to source in the file in current shell using:
. ./conf/prac1
OR
source ./conf/prac1
For Makefile.PL-based distributions, use the INSTALL_BASE option when generating Makefiles:
perl Makefile.PL INSTALL_BASE=/mydir/perl
Take a look at http://vpython.org/contents/docs/visual/VisualIntro.html.
It provides a vector
class which has a method A.rotate(theta,B)
. It also provides a helper function rotate(A,theta,B)
if you don't want to call the method on A
.
I find that Git, working on whole trees as it does, benefits less from IDE integration than source control tools that are either file based or follow a checkout-edit-commit pattern. Of course there are instances when it can be nice to click on a button to do some history examination, but I don't miss that very much.
The real must-do is to get your .gitignore file full of the things that shouldn't be in a shared repository. Mine generally contain (amongst other stuff) the following:
*.vcproj.*.user
*.ncb
*.aps
*.suo
but this is heavily C++ biased with little or no use of any class wizard style functionality.
My usage pattern is something like the following.
Code, code, code in Visual Studio.
When happy (sensible intermediate point to commit code, switch to Git, stage changes and review diffs. If anything's obviously wrong switch back to Visual Studio and fix, otherwise commit.
Any merge, branch, rebase or other fancy SCM stuff is easy to do in Git from the command prompt. Visual Studio is normally fairly happy with things changing under it, although it can sometimes need to reload some projects if you've altered the project files significantly.
I find that the usefulness of Git outweighs any minor inconvenience of not having full IDE integration but it is, to some extent, a matter of taste.
You don't need to use del to delete instances in the first place. Once the last reference to an object is gone, the object will be garbage collected. Maybe you should tell us more about the full problem.
With git show
you can get a similar result. For look the commit (like it looks on git log
view) with the list of files included in, use:
git show --name-only [commit-id_A]^..[commit-id_B]
Where [commit-id_A]
is the initial commit and [commit-id_B]
is the last commit than you want to show.
Special attention with ^
symbol. If you don't put that, the commit-id_A information will not deploy.
There is a refresh all option in the Pivot Table tool bar. That is enough. Dont have to do anything else.
Press ctrl+alt+F5
>>> stuff = "Big and small"
>>> stuff.replace(" and ","/")
'Big/small'
This is a quick and simple add of a named tab to the current worksheet:
Sheets.Add.Name = "Tempo"
Here is a more feature-rich solution I just made after studying this question:
const parseJwt = (token) => {
try {
if (!token) {
throw new Error('parseJwt# Token is required.');
}
const base64Payload = token.split('.')[1];
let payload = new Uint8Array();
try {
payload = Buffer.from(base64Payload, 'base64');
} catch (err) {
throw new Error(`parseJwt# Malformed token: ${err}`);
}
return {
decodedToken: JSON.parse(payload),
};
} catch (err) {
console.log(`Bonus logging: ${err}`);
return {
error: 'Unable to decode token.',
};
}
};
Here's some usage samples:
const unhappy_path1 = parseJwt('sk4u7vgbis4ewku7gvtybrose4ui7gvtmalformedtoken');
console.log('unhappy_path1', unhappy_path1);
const unhappy_path2 = parseJwt('sk4u7vgbis4ewku7gvtybrose4ui7gvt.malformedtoken');
console.log('unhappy_path2', unhappy_path2);
const unhappy_path3 = parseJwt();
console.log('unhappy_path3', unhappy_path3);
const { error, decodedToken } = parseJwt('eyJhbGciOiJIUzI1NiIsInR5cCI6IkpXVCJ9.eyJzdWIiOiIxMjM0NTY3ODkwIiwibmFtZSI6IkpvaG4gRG9lIiwiaWF0IjoxNTE2MjM5MDIyfQ.SflKxwRJSMeKKF2QT4fwpMeJf36POk6yJV_adQssw5c');
if (!decodedToken.exp) {
console.log('almost_happy_path: token has illegal claims (missing expires_at timestamp)', decodedToken);
// note: exp, iat, iss, jti, nbf, prv, sub
}
I wasn't able to make that runnable in StackOverflow code snippet tool, but here's approximately what you would see if you ran that code:
I made the parseJwt
function always return an object (to some degree for static-typing reasons).
This allows you to utilize syntax such as:
const { decodedToken, error } = parseJwt(token);
Then you can test at run-time for specific types of errors and avoid any naming collision.
If anyone can think of any low effort, high value changes to this code, feel free to edit my answer for the benefit of next(person)
.
I just want to point out to all the people saying, "That's not the point of SecureString
", that many of the people asking this question might be in an application where, for whatever reason, justified or not, they are not particularly concerned about having a temporary copy of the password sit on the heap as a GC-able string, but they have to use an API that only accepts SecureString
objects. So, you have an app where you don't care whether the password is on the heap, maybe it's internal-use only and the password is only there because it's required by the underlying network protocols, and you find that that string where the password is stored cannot be used to e.g. set up a remote PowerShell Runspace -- but there is no easy, straight-forward one-liner to create that SecureString
that you need. It's a minor inconvenience -- but probably worth it to ensure that the applications that really do need SecureString
don't tempt the authors to use System.String
or System.Char[]
intermediaries. :-)
I use the CellContentClick event, which makes sure the user clicked the checkbox. It DOES fire multiple times even if the user stays in the same cell. The one issue is that the Value does not get updated, and always returns "false" for unchecked. The trick is to use the .EditedFormattedValue property of the cell instead of the Value property. The EditedFormattedValue will track with the check mark and is what one wishes the Value had in it when the CellContentClick is fired.
No need for a timer, no need for any fancy stuff, just use CellContentClick event and inspect the EditedFormattedValue to tell what state the checkbox is going into / just went into. If EditedFormattedValue = true, the checkbox is getting checked.
Whilst there are several good answers here, I must point out that it is not good practice to display system exception messages on error pages (which is what I am assuming you want to do). You may inadvertently reveal things you do not wish to do so to malicious users. For example Sql Server exception messages are very verbose and can give the user name, password and schema information of the database when an error occurs. That information should not be displayed to an end user.
It is the SQL extension called analytics. The "over" in the select statement tells oracle that the function is a analytical function, not a group by function. The advantage to using analytics is that you can collect sums, counts, and a lot more with just one pass through of the data instead of looping through the data with sub selects or worse, PL/SQL.
It does look confusing at first but this will be second nature quickly. No one explains it better then Tom Kyte. So the link above is great.
Of course, reading the documentation is a must.
With 100k of Javascript, you should never put it inside the file. Use an external script Javascript file. There's no chance in hell you'll only ever use this amount of code in only one HTML page. Likely you're asking where you should load the Javascript file, for this you've received satisfactory answers already.
But I'd like to point out that commonly, modern browsers accept gzipped Javascript files! Just gzip the x.js
file to x.js.gz
, and point to that in the src
attribute. It doesn't work on the local filesystem, you need a webserver for it to work. But the savings in transferred bytes can be enormous.
I've successfully tested it in Firefox 3, MSIE 7, Opera 9, and Google Chrome. It apparently doesn't work this way in Safari 3.
For more info, see this blog post, and another very ancient page that nevertheless is useful because it points out that the webserver can detect whether a browser can accept gzipped Javascript, or not. If your server side can dynamically choose to send the gzipped or the plain text, you can make the page usable in all web browsers.
If jQuery UI datepicker isn't working but it used to work on similar DOM earlier, try removing all the classes and try binding it to just a simple input with its id. In my case a class was interfering with it and preventing the date picker to appear.
it doesn't work from XML with maxLenght I used this code, you can limit the number of characters
String editorName = mEditorNameNd.getText().toString().substring(0, Math.min(mEditorNameNd.length(), 15));
Date
has the time part, so we only need to extract it from Date
I personally prefer the default format
parameter of the Date
when date and time needs to be separated instead of using the extra SimpleDateFormat
Date date = new Date()
String datePart = date.format("dd/MM/yyyy")
String timePart = date.format("HH:mm:ss")
println "datePart : " + datePart + "\ttimePart : " + timePart
sub domain is part of the domain, it's like subletting a room of an apartment. A records has to be setup on the dns for the domain e.g
mydomain.com has IP 123.456.789.999 and hosted with Godaddy. Now to get the sub domain
anothersite.mydomain.com
of which the site is actually on another server then
login to Godaddy and add an A record dnsimple anothersite.mydomain.com and point the IP to the other server 98.22.11.11
And that's it.
This works for me (asp.net core 2.1)
using JustRide.Web.Controllers;
using Microsoft.AspNetCore.Mvc;
using Microsoft.AspNetCore.Mvc.Filters;
namespace MyProject.Web.Filters
{
public class IsAuthenticatedAttribute : ActionFilterAttribute
{
public override void OnActionExecuting(ActionExecutingContext context)
{
if (context.HttpContext.User.Identity.IsAuthenticated)
context.Result = new RedirectToActionResult(nameof(AccountController.Index), "Account", null);
}
}
}
[AllowAnonymous, IsAuthenticated]
public IActionResult Index()
{
return View();
}
If you need async: false
in your ajax, you should use success
instead of .done
. Else you better to use .done
.
This is from jQuery official site:
As of jQuery 1.8, the use of async: false with jqXHR ($.Deferred) is deprecated; you must use the success/error/complete callback options instead of the corresponding methods of the jqXHR object such as jqXHR.done().
You did everything except copying the new pixel value back to the image.
This line takes a copy of the pixel into a local variable:
Vec3b color = image.at<Vec3b>(Point(x,y));
So, after changing color
as you require, just set it back like this:
image.at<Vec3b>(Point(x,y)) = color;
So, in full, something like this:
Mat image = img;
for(int y=0;y<img.rows;y++)
{
for(int x=0;x<img.cols;x++)
{
// get pixel
Vec3b & color = image.at<Vec3b>(y,x);
// ... do something to the color ....
color[0] = 13;
color[1] = 13;
color[2] = 13;
// set pixel
//image.at<Vec3b>(Point(x,y)) = color;
//if you copy value
}
}
Just check if someone deleted the branch at remote.
I just have a mistake copy pasting. In one line I had same name that in other model (Ad model):
const Admin = mongoose.model('Ad', adminSchema);
Correct is:
const Admin = mongoose.model('Admin', adminSchema);
By the way, if someone have "auto-save", and use index for queries like:
**adSchema**.index({title:"text", description:"text", phone:"text", reference:"text"})
It has to delete index, and rewrite for correct model:
**adminSchema**.index({title:"text", description:"text", phone:"text", reference:"text"})
I use .hpp because I want the user to differentiate what headers are C++ headers, and what headers are C headers.
This can be important when your project is using both C and C++ modules: Like someone else explained before me, you should do it very carefully, and its starts by the "contract" you offer through the extension
(Or .hxx, or .hh, or whatever)
This header is for C++ only.
If you're in a C module, don't even try to include it. You won't like it, because no effort is done to make it C-friendly (too much would be lost, like function overloading, namespaces, etc. etc.).
This header can be included by both a C source, and a C++ source, directly or indirectly.
It can included directly, being protected by the __cplusplus
macro:
extern "C"
.For example:
#ifndef MY_HEADER_H
#define MY_HEADER_H
#ifdef __cplusplus
extern "C"
{
#endif
void myCFunction() ;
#ifdef __cplusplus
} // extern "C"
#endif
#endif // MY_HEADER_H
Or it could be included indirectly by the corresponding .hpp header enclosing it with the extern "C"
declaration.
For example:
#ifndef MY_HEADER_HPP
#define MY_HEADER_HPP
extern "C"
{
#include "my_header.h"
}
#endif // MY_HEADER_HPP
and:
#ifndef MY_HEADER_H
#define MY_HEADER_H
void myCFunction() ;
#endif // MY_HEADER_H
Here is very simple example
input[type="radio"]{_x000D_
display:none;_x000D_
}_x000D_
_x000D_
input[type="radio"] + label_x000D_
{_x000D_
background-image:url(http://www.clker.com/cliparts/c/q/l/t/l/B/radiobutton-unchecked-sm-md.png);_x000D_
background-size: 100px 100px;_x000D_
height: 100px;_x000D_
width: 100px;_x000D_
display:inline-block;_x000D_
padding: 0 0 0 0px;_x000D_
cursor:pointer;_x000D_
}_x000D_
_x000D_
input[type="radio"]:checked + label_x000D_
{_x000D_
background-image:url(http://www.clker.com/cliparts/M/2/V/6/F/u/radiobutton-checked-sm-md.png);_x000D_
}
_x000D_
<div>_x000D_
<input type="radio" id="shipadd1" value=1 name="address" />_x000D_
<label for="shipadd1"></label>_x000D_
value 1_x000D_
</div>_x000D_
_x000D_
<div>_x000D_
<input type="radio" id="shipadd2" value=2 name="address" />_x000D_
<label for="shipadd2"></label>_x000D_
value 2_x000D_
</div>
_x000D_
Demo: http://jsfiddle.net/La8wQ/2471/
This example based on this trick: https://css-tricks.com/the-checkbox-hack/
I tested it on: chrome, firefox, safari
When I want an activity to not focus on the EditText and also not show keyboard when clicked, this is what worked for me.
Adding attributes to the main layout
android:descendantFocusability="beforeDescendants"
android:focusableInTouchMode="true"
and then the EditText field
android:focusable="false"
android:focusableInTouchMode="false"
Here is an example:
<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/apk/res-auto"
xmlns:tools="http://schemas.android.com/tools"
android:id="@+id/activity_home"
android:background="@drawable/bg_landing"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:paddingBottom="0dp"
android:paddingLeft="0dp"
android:paddingRight="0dp"
android:paddingTop="@dimen/activity_vertical_margin"
android:descendantFocusability="beforeDescendants"
android:focusableInTouchMode="true"
tools:context="com.woppi.woppi.samplelapp.HomeActivity">
<EditText
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:background="@null"
android:inputType="textPersonName"
android:ems="10"
android:id="@+id/fromEditText"
android:layout_weight="1"
android:hint="@string/placeholder_choose_language"
android:textColor="@android:color/white"
android:textColorHint="@android:color/darker_gray"
android:focusable="false"
android:focusableInTouchMode="false"
android:onClick="onSelectFromLanguage" />
</RelativeLayout>
You can also change label display parameters like fontsize with a line like this:
zed = [tick.label.set_fontsize(14) for tick in ax.yaxis.get_major_ticks()]
select * from syscat.tables where type = 'T'
you may want to restrict the query to your tabschema
go to the url about:config
and paste each line:
network.http.keep-alive.timeout;10
network.http.connection-retry-timeout;10
network.http.pipelining.read-timeout;5
network.http.connection-timeout;10
Is WebSockets over TCP a fast enough protocol to stream a video of, say, 30fps?
Yes.. it is, take a look at this project. Websockets can easily handle HD videostreaming.. However, you should go for Adaptive Streaming. I explain here how you could implement it.
Currently we're working on a webbased instant messaging application with chat, filesharing and video/webcam support. With some bits and tricks we got streaming media through websockets (used HTML5 Media Capture to get the stream from our webcams).
You need to build a stream API
and a Media Stream Transceiver
to control the related media processing and transport.
Xauthority becomes an issue with newer systems. I can either discard any protection with xhost + before running my docker containers, or I can pass in a well prepared Xauthority file. Typical Xauthority files are hostname specific. With docker, each container can have a different host name (set with docker run -h), but even setting the hostname of the container identical to the host system did not help in my case. xeyes (I like this example) simply would ignore the magic cookie and pass no credentials to the server. Hence we get an error message 'No protocol specified Cannot open display'
The Xauthority file can be written in a way so that the hostname does not matter. We need to set the Authentication Family to 'FamilyWild'. I am not sure, if xauth has a proper command line for this, so here is an example that combines xauth and sed to do that. We need to change the first 16 bits of the nlist output. The value of FamilyWild is 65535 or 0xffff.
docker build -t xeyes - << __EOF__
FROM debian
RUN apt-get update
RUN apt-get install -qqy x11-apps
ENV DISPLAY :0
CMD xeyes
__EOF__
XSOCK=/tmp/.X11-unix
XAUTH=/tmp/.docker.xauth
xauth nlist :0 | sed -e 's/^..../ffff/' | xauth -f $XAUTH nmerge -
docker run -ti -v $XSOCK:$XSOCK -v $XAUTH:$XAUTH -e XAUTHORITY=$XAUTH xeyes
You can use dirname
:
os.path.dirname(path)
Return the directory name of pathname path. This is the first element of the pair returned by passing path to the function split().
And given the full path, then you can split normally to get the last portion of the path. For example, by using basename
:
os.path.basename(path)
Return the base name of pathname path. This is the second element of the pair returned by passing path to the function split(). Note that the result of this function is different from the Unix basename program; where basename for '/foo/bar/' returns 'bar', the basename() function returns an empty string ('').
All together:
>>> import os
>>> path=os.path.dirname("C:/folder1/folder2/filename.xml")
>>> path
'C:/folder1/folder2'
>>> os.path.basename(path)
'folder2'
At some point, isn't it easier(or just as easy) to use a forEach
var options = [_x000D_
{ name: 'One', assigned: true }, _x000D_
{ name: 'Two', assigned: false }, _x000D_
{ name: 'Three', assigned: true }, _x000D_
];_x000D_
_x000D_
var reduced = []_x000D_
options.forEach(function(option) {_x000D_
if (option.assigned) {_x000D_
var someNewValue = { name: option.name, newProperty: 'Foo' }_x000D_
reduced.push(someNewValue);_x000D_
}_x000D_
});_x000D_
_x000D_
document.getElementById('output').innerHTML = JSON.stringify(reduced);
_x000D_
<h1>Only assigned options</h1>_x000D_
<pre id="output"> </pre>
_x000D_
However it would be nice if there was a malter()
or fap()
function that combines the map
and filter
functions. It would work like a filter, except instead of returning true or false, it would return any object or a null/undefined.
You can take a look here ( this is not a solution but the idea is here)
sample multi client with the google chat example
what you have to change/do :
separate server and client logique in different classes
for the client you need an object to manage one connect thread and on connected thread
for the server you need an object to manage one listening thread per client, and one connected thread per client
the server open a listening thread on each UUID (one per client)
each client try to connect to each uuid (the uuid already taken will fail the connection => first come first served)
Any question ?
People from other scripting languages always think theirs is better because they have a built-in function to do that and not PHP (I am looking at Pythonistas right now :-)).
In fact, it does exist, but few people know it. Meet pathinfo()
:
$ext = pathinfo($filename, PATHINFO_EXTENSION);
This is fast and built-in. pathinfo()
can give you other information, such as canonical path, depending on the constant you pass to it.
Remember that if you want to be able to deal with non ASCII characters, you need to set the locale first. E.G:
setlocale(LC_ALL,'en_US.UTF-8');
Also, note this doesn't take into consideration the file content or mime-type, you only get the extension. But it's what you asked for.
Lastly, note that this works only for a file path, not a URL resources path, which is covered using PARSE_URL.
Enjoy
You can try:
select(data, matches("search_string"))
It is more general than contains
- you can use regex (e.g. "one_string|or_the_other"
).
For more examples, see: http://rpackages.ianhowson.com/cran/dplyr/man/select.html.
With the unobtrusive way:
Jquery Validate Example:
<input type="text" name="email" class="required">
<script>
$(function () {
$("form").validate();
});
</script>
Jquery Validate Unobtrusive Example:
<input type="text" name="email" data-val="true"
data-val-required="This field is required.">
<div class="validation-summary-valid" data-valmsg-summary="true">
<ul><li style="display:none"></li></ul>
</div>
You can change it directly in styles.xml file \app\src\main\res\values\styles.xml
This work on older versions, I was changing it in KitKat and come here.
Here are two examples from my working project.
Using EntityUtils
and HttpEntity
HttpResponse response = httpClient.execute(new HttpGet(URL));
HttpEntity entity = response.getEntity();
String responseString = EntityUtils.toString(entity, "UTF-8");
System.out.println(responseString);
Using BasicResponseHandler
HttpResponse response = httpClient.execute(new HttpGet(URL));
String responseString = new BasicResponseHandler().handleResponse(response);
System.out.println(responseString);
I try to change port number in the following file - /src/main/resources/application-prod.yml
And inside this file I made this change:
server: port: 8100 (or whatever you want)
I hope that this will works good for you
The following approach worked well for me. Modified from here.
function callback(theVar) {_x000D_
return function() {_x000D_
theVar();_x000D_
}_x000D_
}_x000D_
_x000D_
function some_other_function() {_x000D_
document.body.innerHTML += "made it.";_x000D_
}_x000D_
_x000D_
var someVar = some_other_function;_x000D_
document.getElementById('button').addEventListener('click', callback(someVar));
_x000D_
<!DOCTYPE html>_x000D_
<html>_x000D_
<body>_x000D_
<button type="button" id="button">Click Me!</button>_x000D_
</body>_x000D_
</html>
_x000D_
Here is how to do dump the database (with just the schema):
mysqldump -u root -p"passwd" --no-data --add-drop-database --databases my_db_name | sed 's#/[*]!40000 DROP DATABASE IF EXISTS my_db_name;#' >my_db_name.sql
If you also want the data, remove the --no-data
option.
Say you have a list such as:
a = [9,8,7]
The following two methods are pretty compact ways to get a tuple with the minimum element and its index. Both take a similar time to process. I better like the zip method, but that is my taste.
element, index = min(list(zip(a, range(len(a)))))
min(list(zip(a, range(len(a)))))
(7, 2)
timeit min(list(zip(a, range(len(a)))))
1.36 µs ± 107 ns per loop (mean ± std. dev. of 7 runs, 1000000 loops each)
index, element = min(list(enumerate(a)), key=lambda x:x[1])
min(list(enumerate(a)), key=lambda x:x[1])
(2, 7)
timeit min(list(enumerate(a)), key=lambda x:x[1])
1.45 µs ± 78.1 ns per loop (mean ± std. dev. of 7 runs, 1000000 loops each)
In visual studio, there is a built in detector for memory leak called C Runtime Library. When your program exits after the main function returns, CRT will check the debug heap of your application. if you have any blocks still allocated on the debug heap, then you have memory leak..
This forum discusses a few ways to avoid memory leakage in C/C++..
Try The Simple Version:
import tkinter
window = Tk()
closebutton = Button(window, text='X', command=window.destroy)
closebutton.pack()
window.mainloop()
Or If You Want To Add More Commands:
import tkinter
window = Tk()
def close():
window.destroy()
#More Functions
closebutton = Button(window, text='X', command=close)
closebutton.pack()
window.mainloop()
vscode
I use vscode for java and it works pretty much the same as visual studio except you use comments:
//#region name
//code
//#endregion
A variation of the first answer that I found useful
Open your command prompt and enter (you dont have to be logged into your mysql server)
mysqldump -hlocalhost -u<root> -p<password> <dbname> --compact --no-data > </path_to_mydump/>mysql.dmp
You can do it using named-entity recognition (NER). It's fairly simple and there are out-of-the-shelf tools out there to do it, such as spaCy.
NER is an NLP task where a neural network (or other method) is trained to detect certain entities, such as names, places, dates and organizations.
Example:
Sponge Bob went to South beach, he payed a ticket of $200!
I know, Michael is a good person, he goes to McDonalds, but donates to charity at St. Louis street.
Returns:
Just be aware that this is not 100%!
Here are a little snippet for you to try out:
import spacy
phrases = ['Sponge Bob went to South beach, he payed a ticket of $200!', 'I know, Michael is a good person, he goes to McDonalds, but donates to charity at St. Louis street.']
nlp = spacy.load('en')
for phrase in phrases:
doc = nlp(phrase)
replaced = ""
for token in doc:
if token in doc.ents:
replaced+="XXXX "
else:
replaced+=token.text+" "
Read more here: https://spacy.io/usage/linguistic-features#named-entities
You could, instead of replacing with XXXX, replace based on the entity type, like:
if ent.label_ == "PERSON":
replaced += "<PERSON> "
Then:
import re, random
personames = ["Jack", "Mike", "Bob", "Dylan"]
phrase = re.replace("<PERSON>", random.choice(personames), phrase)
This seems to be the clearest and simplest example to me, this just appends property or replaces existing.
function replaceProperties(copyTo, copyFrom) {
for (var property in copyFrom)
copyTo[property] = copyFrom[property]
return copyTo
}
This is what I use and it works in Linux environments. I don't think this would work on a Windows machine...
//define canonicalized absolute pathname for the script
if(substr($_SERVER['SCRIPT_NAME'],0,1) == DIRECTORY_SEPARATOR) {
//does the script name start with the directory separator?
//if so, the path is defined from root; may have symbolic references so still use realpath()
$script = realpath($_SERVER['SCRIPT_NAME']);
} else {
//otherwise prefix script name with the current working directory
//and use realpath() to resolve symbolic references
$script = realpath(getcwd() . DIRECTORY_SEPARATOR . $_SERVER['SCRIPT_NAME']);
}
Instant.ofEpochMilli ( 1_393_572_325_000L )
.toString()
2014-02-28T07:25:25Z
(a) You seem be confused as to what a Date is. As the answer by JB Nizet said, a Date tracks the number of milliseconds since the Unix epoch (first moment of 1970) in the UTC time zone (that is, with no time zone offset). So a Date has no time zone†. And it has no "format". We create string representations from a Date's value, but the Date itself is not a String and has no String.
(b) You refer to a "UTC format". UTC is not a format, not I have heard of. UTC (Coordinated Universal Time) is the origin point of time zones. Time zones east of the Royal Observatory in Greenwich, London are some number of hours & minutes ahead of UTC. Westward time zones are behind UTC.
You seem to be referring to ISO 8601 formatted strings. You are using the optional format, omitting (1) the T
from the middle, and (2) the offset-from-UTC at the end. Unless presenting the string to a user in the user interface of your app, I suggest you generally stick with the usual format:
2014-02-27T23:03:14+05:30
2014-02-27T23:03:14Z
('Z' for Zulu, or UTC, with an offset of +00:00)(c) Avoid the 3 or 4 letter time zone codes. They are neither standardized nor unique. "IST" for example can mean either Indian Standard Time or Irish Standard Time.
(d) Put some effort into searching StackOverflow before posting. You would have found all your answers.
(e) Avoid the java.util.Date & Calendar classes bundled with Java. They are notoriously troublesome. Use either the Joda-Time library or Java 8’s new java.time package (inspired by Joda-Time, defined by JSR 310).
The java.time classes use standard ISO 8601 formats by default when parsing and generating strings.
OffsetDateTime odt = OffsetDateTime.parse( "2014-02-27T23:03:14+05:30" );
Instant instant = Instant.parse( "2014-02-27T23:03:14Z" );
Parse your count of milliseconds since the epoch of first moment of 1970 in UTC.
Instant instant = Instant.ofEpochMilli ( 1_393_572_325_000L );
instant.toString(): 2014-02-28T07:25:25Z
Adjust that Instant
into a desired time zone.
ZoneId z = ZoneId.of( "America/Montreal" );
ZonedDateTime zdt = instant.atZone( z );
zdt.toString(): 2014-02-28T02:25:25-05:00[America/Montreal]
The java.time framework is built into Java 8 and later. These classes supplant the troublesome old legacy date-time classes such as java.util.Date
, Calendar
, & SimpleDateFormat
.
The Joda-Time project, now in maintenance mode, advises migration to the java.time classes.
To learn more, see the Oracle Tutorial. And search Stack Overflow for many examples and explanations. Specification is JSR 310.
You may exchange java.time objects directly with your database. Use a JDBC driver compliant with JDBC 4.2 or later. No need for strings, no need for java.sql.*
classes.
Where to obtain the java.time classes?
The ThreeTen-Extra project extends java.time with additional classes. This project is a proving ground for possible future additions to java.time. You may find some useful classes here such as Interval
, YearWeek
, YearQuarter
, and more.
UPDATE: The Joda-Time project, now in maintenance mode, advises migration to the java.time classes.
Joda-Time uses ISO 8601 as its defaults.
A Joda-Time DateTime
object knows its on assigned time zone, unlike a java.util.Date object.
Generally better to specify a time zone explicitly rather than rely on default time zone.
long input = 1393572325000L;
DateTime dateTimeUtc = new DateTime( input, DateTimeZone.UTC );
DateTimeZone timeZoneIndia = DateTimeZone.forID( "Asia/Kolkata" );
DateTimeZone timeZoneIreland = DateTimeZone.forID( "Europe/Dublin" );
DateTime dateTimeIndia = dateTimeUtc.withZone( timeZoneIndia );
DateTime dateTimeIreland = dateTimeIndia.withZone( timeZoneIreland );
// Use a formatter to create a String representation. The formatter can adjust time zone if you so desire.
DateTimeFormatter formatter = DateTimeFormat.forStyle( "FM" ).withLocale( Locale.CANADA_FRENCH ).withZone( DateTimeZone.forID( "America/Montreal" ) );
String output = formatter.print( dateTimeIreland );
Dump to console…
// All three of these date-time objects represent the *same* moment in the timeline of the Universe.
System.out.println( "dateTimeUtc: " + dateTimeUtc );
System.out.println( "dateTimeIndia: " + dateTimeIndia );
System.out.println( "dateTimeIreland: " + dateTimeIreland );
System.out.println( "output for Montréal: " + output );
When run…
dateTimeUtc: 2014-02-28T07:25:25.000Z
dateTimeIndia: 2014-02-28T12:55:25.000+05:30
dateTimeIreland: 2014-02-28T07:25:25.000Z
output for Montréal: vendredi 28 février 2014 02:25:25
† Actually, java.util.Date does have a time zone. That time zone is assigned deep in its source code. Yet the class ignores that time zone for most practical purposes. And its toString
method applies the JVM’s current default time zone rather than that internal time zone. Confusing? Yes. This is one of many reasons to avoid the old java.util.Date/.Calendar classes. Use java.time and/or Joda-Time instead.
Can confirm that on version tslint 5.11.0 it works by modifying lint script in package.json by defining exclude argument:
"lint": "ng lint --exclude src/models/** --exclude package.json"
Cheers!!
Line numbers are printed with grep -n
:
grep -n pattern file.txt
To get only the line number (without the matching line), one may use cut
:
grep -n pattern file.txt | cut -d : -f 1
Lines not containing a pattern are printed with grep -v
:
grep -v pattern file.txt
Are you using Eclipse? If so I would stick with the default member sort order, because that is likely to be most familiar to whoever reads your code (although it is not my favourite sort order.)
As documented in ?legend
you do this like so:
plot(1:10,type = "n")
abline(v=seq(1,10,1), col='grey', lty='dotted')
legend(1, 5, "This legend text should not be disturbed by the dotted grey lines,\nbut the plotted dots should still be visible",box.lwd = 0,box.col = "white",bg = "white")
points(1:10,1:10)
Line breaks are achieved with the new line character \n
. Making the points still visible is done simply by changing the order of plotting. Remember that plotting in R is like drawing on a piece of paper: each thing you plot will be placed on top of whatever's currently there.
Note that the legend text is cut off because I made the plot dimensions smaller (windows.options does not exist on all R platforms).
<ui:include>
Most basic way is <ui:include>
. The included content must be placed inside <ui:composition>
.
Kickoff example of the master page /page.xhtml
:
<!DOCTYPE html>
<html lang="en"
xmlns="http://www.w3.org/1999/xhtml"
xmlns:f="http://xmlns.jcp.org/jsf/core"
xmlns:h="http://xmlns.jcp.org/jsf/html"
xmlns:ui="http://xmlns.jcp.org/jsf/facelets">
<h:head>
<title>Include demo</title>
</h:head>
<h:body>
<h1>Master page</h1>
<p>Master page blah blah lorem ipsum</p>
<ui:include src="/WEB-INF/include.xhtml" />
</h:body>
</html>
The include page /WEB-INF/include.xhtml
(yes, this is the file in its entirety, any tags outside <ui:composition>
are unnecessary as they are ignored by Facelets anyway):
<ui:composition
xmlns="http://www.w3.org/1999/xhtml"
xmlns:f="http://xmlns.jcp.org/jsf/core"
xmlns:h="http://xmlns.jcp.org/jsf/html"
xmlns:ui="http://xmlns.jcp.org/jsf/facelets">
<h2>Include page</h2>
<p>Include page blah blah lorem ipsum</p>
</ui:composition>
This needs to be opened by /page.xhtml
. Do note that you don't need to repeat <html>
, <h:head>
and <h:body>
inside the include file as that would otherwise result in invalid HTML.
You can use a dynamic EL expression in <ui:include src>
. See also How to ajax-refresh dynamic include content by navigation menu? (JSF SPA).
<ui:define>
/<ui:insert>
A more advanced way of including is templating. This includes basically the other way round. The master template page should use <ui:insert>
to declare places to insert defined template content. The template client page which is using the master template page should use <ui:define>
to define the template content which is to be inserted.
Master template page /WEB-INF/template.xhtml
(as a design hint: the header, menu and footer can in turn even be <ui:include>
files):
<!DOCTYPE html>
<html lang="en"
xmlns="http://www.w3.org/1999/xhtml"
xmlns:f="http://xmlns.jcp.org/jsf/core"
xmlns:h="http://xmlns.jcp.org/jsf/html"
xmlns:ui="http://xmlns.jcp.org/jsf/facelets">
<h:head>
<title><ui:insert name="title">Default title</ui:insert></title>
</h:head>
<h:body>
<div id="header">Header</div>
<div id="menu">Menu</div>
<div id="content"><ui:insert name="content">Default content</ui:insert></div>
<div id="footer">Footer</div>
</h:body>
</html>
Template client page /page.xhtml
(note the template
attribute; also here, this is the file in its entirety):
<ui:composition template="/WEB-INF/template.xhtml"
xmlns="http://www.w3.org/1999/xhtml"
xmlns:f="http://xmlns.jcp.org/jsf/core"
xmlns:h="http://xmlns.jcp.org/jsf/html"
xmlns:ui="http://xmlns.jcp.org/jsf/facelets">
<ui:define name="title">
New page title here
</ui:define>
<ui:define name="content">
<h1>New content here</h1>
<p>Blah blah</p>
</ui:define>
</ui:composition>
This needs to be opened by /page.xhtml
. If there is no <ui:define>
, then the default content inside <ui:insert>
will be displayed instead, if any.
<ui:param>
You can pass parameters to <ui:include>
or <ui:composition template>
by <ui:param>
.
<ui:include ...>
<ui:param name="foo" value="#{bean.foo}" />
</ui:include>
<ui:composition template="...">
<ui:param name="foo" value="#{bean.foo}" />
...
</ui:composition >
Inside the include/template file, it'll be available as #{foo}
. In case you need to pass "many" parameters to <ui:include>
, then you'd better consider registering the include file as a tagfile, so that you can ultimately use it like so <my:tagname foo="#{bean.foo}">
. See also When to use <ui:include>, tag files, composite components and/or custom components?
You can even pass whole beans, methods and parameters via <ui:param>
. See also JSF 2: how to pass an action including an argument to be invoked to a Facelets sub view (using ui:include and ui:param)?
The files which aren't supposed to be publicly accessible by just entering/guessing its URL, need to be placed in /WEB-INF
folder, like as the include file and the template file in above example. See also Which XHTML files do I need to put in /WEB-INF and which not?
There doesn't need to be any markup (HTML code) outside <ui:composition>
and <ui:define>
. You can put any, but they will be ignored by Facelets. Putting markup in there is only useful for web designers. See also Is there a way to run a JSF page without building the whole project?
The HTML5 doctype is the recommended doctype these days, "in spite of" that it's a XHTML file. You should see XHTML as a language which allows you to produce HTML output using a XML based tool. See also Is it possible to use JSF+Facelets with HTML 4/5? and JavaServer Faces 2.2 and HTML5 support, why is XHTML still being used.
CSS/JS/image files can be included as dynamically relocatable/localized/versioned resources. See also How to reference CSS / JS / image resource in Facelets template?
You can put Facelets files in a reusable JAR file. See also Structure for multiple JSF projects with shared code.
For real world examples of advanced Facelets templating, check the src/main/webapp
folder of Java EE Kickoff App source code and OmniFaces showcase site source code.
This one-liner also handles nested objects and JSON.stringify
them as needed:
let qs = Object.entries(obj).map(([k, v]) => `${k}=${encodeURIComponent(typeof (v) === "object" ? JSON.stringify(v) : v)}`).join('&')
You can use the concept of selector. onFocus removes the hint.
android:hint="Email"
So when TextView
has focus, or has user input (i.e. not empty) the hint will not display.
Your call_python_file.php should look like this:
<?php
$item='Everything is awesome!!';
$tmp = exec("py.py $item");
echo $tmp;
?>
This executes the python script and outputs the result to the browser. While in your python script the (sys.argv[1:]) variable will bring in all your arguments. To display the argv as a string for wherever your php is pulling from so if you want to do a text area:
import sys
list1 = ' '.join(sys.argv[1:])
def main():
print list1
if __name__ == '__main__':
main()
The easiest way is to use a StringContent
, with the JSON representation of your JSON object.
httpClient.Post(
"",
new StringContent(
myObject.ToString(),
Encoding.UTF8,
"application/json"));
-- searching for weather stations with missing half-hourly records
SELECT stationid
FROM weather_data
WHERE `Timestamp` LIKE '2011-11-15 %' AND
stationid IN (SELECT `ID` FROM `weather_stations`)
GROUP BY stationid
HAVING COUNT(*) != 48;
-- variation of yapiskan with a where .. in .. select
Use Invoke-RestMethod
to consume REST-APIs. Save the JSON to a string and use that as the body, ex:
$JSON = @'
{"@type":"login",
"username":"[email protected]",
"password":"yyy"
}
'@
$response = Invoke-RestMethod -Uri "http://somesite.com/oneendpoint" -Method Post -Body $JSON -ContentType "application/json"
If you use Powershell 3, I know there have been some issues with Invoke-RestMethod
, but you should be able to use Invoke-WebRequest
as a replacement:
$response = Invoke-WebRequest -Uri "http://somesite.com/oneendpoint" -Method Post -Body $JSON -ContentType "application/json"
If you don't want to write your own JSON every time, you can use a hashtable and use PowerShell to convert it to JSON before posting it. Ex.
$JSON = @{
"@type" = "login"
"username" = "[email protected]"
"password" = "yyy"
} | ConvertTo-Json
If it is hibernate and JPA. check your referred table name and columns might be a mismatch
<meta http-equiv="refresh" content="2; url=http://example.com/" />
Here 2
is delay in seconds.
Please try below:
myDropDown.SelectedIndex =
myDropDown.Items.IndexOf(myDropDown.Items.FindByValue("myValue"))
Here is my experience with Jenkins version 1.636: as long as I have only one "Install automatically" JDK configured in Jenkins JDK section, I don't see "JDK" dropdown in Job=>Configure section, but as soon as I added second JDK in Jenkins config, JDK dropdown appeared in Job=>Configure section with 3 options [(System), JDK1, JDK2]
Well, you can always "give up" :)
function b(val){
return (val==null || val===false);
}
where('archived IS NOT NULL', null, false)
There is an ipython nbextension that constructs a table of contents for a notebook. It seems to only provide navigation, not section folding.
You want to use coalesce()
:
where coalesce(email, email2) like '%[email protected]%'
If you want to handle empty strings ('') versus NULL, a case works:
where (case when email is NULL or email = '' then email2 else email end) like '%[email protected]%'
And, if you are worried about the string really being just spaces:
where (case when email is NULL or ltrim(email) = '' then email2 else email end) like '%[email protected]%'
As an aside, the sample if
statement is really saying "If email starts with a number larger than 0". This is because the comparison is to 0, a number. MySQL implicitly tries to convert the string to a number. So, '[email protected]' would fail, because the string would convert as 0. As would '[email protected]'. But, '[email protected]' and '[email protected]' would succeed.
It is worth to mention how to remove the extension also in parallel with getting the extension:
var name = Path.GetFileNameWithoutExtension(fileFullName); // Get the name only
var extension = Path.GetExtension(fileFullName); // Get the extension only
In ran into a kind of similar case, were I had to do this . My Table definition look like :
id(bigint)|name (character varying)|results(character varying)
1 | "Peters"| [{"jk1":"jv1"},{"jk1":"jv2"}]
2 | "Russel"| null
To filter out the results column with null or empty in it , what worked was :
SELECT * FROM tablename where results NOT IN ('null','{}');
This returned all rows which are not null on results.
I'm not sure how to fix this query to return the same all rows which are not null on results.
SELECT * FROM tablename where results is not null;
--- hmm what am I missing,casting ? any inputs?
I had been struggling with this requirement for quite a while and took some of the solutions above to implement it. However, I stumbled upon an observation and it seems to work across Chrome, Firefox and Safari browsers + Android and iPhone
On page load:
window.history.pushState({page: 1}, "", "");
window.onpopstate = function(event) {
// "event" object seems to contain value only when the back button is clicked
// and if the pop state event fires due to clicks on a button
// or a link it comes up as "undefined"
if(event){
// Code to handle back button or prevent from navigation
}
else{
// Continue user action through link or button
}
}
Let me know if this helps. If am missing something, I will be happy to understand.