You can use python -m http.server
. By default the local server will run on port 8000. If you would like to change this, simply add the port number python -m http.server 1234
If you are using python 2 (instead of 3), the equivalent command is python -m SimpleHTTPServer
Try using JMyron How To Use Webcam Using Java. I think using JMyron is the easiest way to access a webcam using java. I tried to use it with a 64-bit processor, but it gave me an error. It worked just fine on a 32-bit processor, though.
I think the project you are looking for is: https://github.com/sarxos/webcam-capture (I'm the author)
There is an example working exactly as you've described - after it's run, the window appear where, after you press "Start" button, you can see live image from webcam device and save it to file after you click on "Snapshot" (source code available, please note that FPS counter in the corner can be disabled):
The project is portable (WinXP, Win7, Win8, Linux, Mac, Raspberry Pi) and does not require any additional software to be installed on the PC.
API is really nice and easy to learn. Example how to capture single image and save it to PNG file:
Webcam webcam = Webcam.getDefault();
webcam.open();
ImageIO.write(webcam.getImage(), "PNG", new File("test.png"));
If you only have one camera, or you don't care which camera is the correct one, then use "-1" as the index. Ie for your example capture = cv.CaptureFromCAM(-1)
.
It can be done by using ecapture First, run
pip install ecapture
Then in a new python script type:
from ecapture import ecapture as ec
ec.capture(0,"test","img.jpg")
More information from thislink
The usual API for this is DirectShow.
You can use P/Invoke to import the C++ APIs, but I think there are already a few projects out there that have done this.
http://channel9.msdn.com/forums/TechOff/93476-Programatically-Using-A-Webcam-In-C/
http://www.codeproject.com/KB/directx/DirXVidStrm.aspx
To get the streaming part, you probably want to use DirectShow to apply a compression codec to reduce lag, then you can get a Stream and transmit it. You could consider using multicast to reduce network load.
John Montgomery's, answer is great, but at least on Windows, it is missing the line
vc.release()
before
cv2.destroyWindow("preview")
Without it, the camera resource is locked, and can not be captured again before the python console is killed.
As mentioned in the error, the official manual and the comments:
Replace
public function TSStatus($host, $queryPort)
with
public function __construct($host, $queryPort)
To loop all rows in a dataframe
you can use:
for x in range(len(date_example.index)):
print date_example['Date'].iloc[x]
follow the instruction given below for Java 1.7, to create an SSL certificate using InstallCert.java program file.
https://github.com/escline/InstallCert
you must restart the tomcat
The ideal situation for resolving conflicts is when you know ahead of time which way you want to resolve them and can pass the -Xours
or -Xtheirs
recursive merge strategy options. Outside of this I can see three scenarious:
To address these three scenarios you can add the following lines to your .gitconfig
file (or equivalent):
[merge]
conflictstyle = diff3
[mergetool.getours]
cmd = git-checkout --ours ${MERGED}
trustExitCode = true
[mergetool.mergeours]
cmd = git-merge-file --ours ${LOCAL} ${BASE} ${REMOTE} -p > ${MERGED}
trustExitCode = true
[mergetool.keepours]
cmd = sed -i '' -e '/^<<<<<<</d' -e '/^|||||||/,/^>>>>>>>/d' ${MERGED}
trustExitCode = true
[mergetool.gettheirs]
cmd = git-checkout --theirs ${MERGED}
trustExitCode = true
[mergetool.mergetheirs]
cmd = git-merge-file --theirs ${LOCAL} ${BASE} ${REMOTE} -p > ${MERGED}
trustExitCode = true
[mergetool.keeptheirs]
cmd = sed -i '' -e '/^<<<<<<</,/^=======/d' -e '/^>>>>>>>/d' ${MERGED}
trustExitCode = true
The get(ours|theirs)
tool just keeps the respective version of the file and throws away all of the changes from the other version (so no merging occurs).
The merge(ours|theirs)
tool re-does the three way merge from the local, base, and remote versions of the file, choosing to resolve conflicts in the given direction. This has some caveats, specifically: it ignores the diff options that were passed to the merge command (such as algorithm and whitespace handling); does the merge cleanly from the original files (so any manual changes to the file are discarded, which could be good or bad); and has the advantage that it cannot be confused by diff markers that are supposed to be in the file.
The keep(ours|theirs)
tool simply edits out the diff markers and enclosed sections, detecting them by regular expression. This has the advantage that it preserves the diff options from the merge command and allows you to resolve some conflicts by hand and then automatically resolve the rest. It has the disadvantage that if there are other conflict markers in the file it could get confused.
These are all used by running git mergetool -t (get|merge|keep)(ours|theirs) [<filename>]
where if <filename>
is not supplied it processes all conflicted files.
Generally speaking, assuming you know there are no diff markers to confuse the regular expression, the keep*
variants of the command are the most powerful. If you leave the mergetool.keepBackup
option unset or true then after the merge you can diff the *.orig
file against the result of the merge to check that it makes sense. As an example, I run the following after the mergetool
just to inspect the changes before committing:
for f in `find . -name '*.orig'`; do vimdiff $f ${f%.orig}; done
Note: If the merge.conflictstyle
is not diff3
then the /^|||||||/
pattern in the sed
rule needs to be /^=======/
instead.
View.GONE makes the view invisible without the view taking up space in the layout. View.INVISIBLE makes the view just invisible still taking up space.
You are first using GONE and then INVISIBLE on the same view.Since, the code is executed sequentially, first the view becomes GONE then it is overridden by the INVISIBLE type still taking up space.
You should add button listener on the button and inside the onClick() method make the views visible. This should be the logic according to me in your onCreate() method.
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_setting);
final DatePicker dp2 = (DatePicker) findViewById(R.id.datePick2);
final Button btn2 = (Button) findViewById(R.id.btnDate2);
final Button btn3 = (Button) findViewById(R.id.btnVisibility);
dp2.setVisibility(View.INVISIBLE);
btn2.setVisibility(View.INVISIBLE);
bt3.setOnClickListener(new View.OnCLickListener(){
@Override
public void onClick(View view)
{
dp2.setVisibility(View.VISIBLE);
bt2.setVisibility(View.VISIBLE);
}
});
}
I think this should work easily. Hope this helps.
I think you can also execute this command:
select (sysdate-1) PREVIOUS_DATE from dual;
get page content by page name:
<?php
$page = get_page_by_title( 'page-name' );
$content = apply_filters('the_content', $page->post_content);
echo $content;
?>
Note that in Entity Framework 6.1 (currently in beta) will support the IndexAttribute to annotate the index properties which will automatically result in a (unique) index in your Code First Migrations.
for this small example:
import socket
mysock = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
mysock.connect(('www.py4inf.com', 80))
mysock.send(**b**'GET http://www.py4inf.com/code/romeo.txt HTTP/1.0\n\n')
while True:
data = mysock.recv(512)
if ( len(data) < 1 ) :
break
print (data);
mysock.close()
adding the "b" before 'GET http://www.py4inf.com/code/romeo.txt HTTP/1.0\n\n' solved my problem
You could use the .attr()
function:
$(this).attr('data-fullText')
or if you lowercase the attribute name:
data-fulltext="This is a span element"
then you could use the .data()
function:
$(this).data('fulltext')
The .data()
function expects and works only with lowercase attribute names.
For me, it's working with this:
BigDecimal a = new BigDecimal("9999999999.6666",precision);
BigDecimal b = new BigDecimal("21",precision);
a.divideToIntegralValue(b).setScale(2)
<div class="container"> _x000D_
<section class="main-content">_x000D_
<center><a href="#"><button id="view-fullscreen">view full size page large</button></a><center>_x000D_
<script>(function () {_x000D_
var viewFullScreen = document.getElementById("view-fullscreen");_x000D_
if (viewFullScreen) {_x000D_
viewFullScreen.addEventListener("click", function () {_x000D_
var docElm = document.documentElement;_x000D_
if (docElm.requestFullscreen) {_x000D_
docElm.requestFullscreen();_x000D_
}_x000D_
else if (docElm.mozRequestFullScreen) {_x000D_
docElm.mozRequestFullScreen();_x000D_
}_x000D_
else if (docElm.webkitRequestFullScreen) {_x000D_
docElm.webkitRequestFullScreen();_x000D_
}_x000D_
}, false);_x000D_
}_x000D_
})();</script>_x000D_
</section>_x000D_
</div>
_x000D_
for view demo clcik here demo of click to open page in fullscreen
As others have mentioned Android does not have a good way to support parsing/formatting ISO 8601 dates using classes included in the SDK. I have written this code multiple times so I finally created a Gist that includes a DateUtils class that supports formatting and parsing ISO 8601 and RFC 1123 dates. The Gist also includes a test case showing what it supports.
Be aware that the function File.GetLastWriteTime does not always work as expected, the values are sometimes not instantaneously updated by the OS. You may get an old Timestamp, even if the file has been modified right before.
The behaviour may vary between OS versions. For example, this unit test worked well every time on my developer machine, but it always fails on our build server.
[TestMethod]
public void TestLastModifiedTimeStamps()
{
var tempFile = Path.GetTempFileName();
var lastModified = File.GetLastWriteTime(tempFile);
using (new FileStream(tempFile, FileMode.Create, FileAccess.Write, FileShare.None))
{
}
Assert.AreNotEqual(lastModified, File.GetLastWriteTime(tempFile));
}
See File.GetLastWriteTime seems to be returning 'out of date' value
Your options:
a) live with the occasional omissions.
b) Build up an active component realising the observer pattern (eg. a tcp server client structure), communicating the changes directly instead of writing / reading files. Fast and flexible, but another dependency and a possible point of failure (and some work, of course).
c) Ensure the signalling process by replacing the content of a dedicated signal file that other processes regularly read. It´s not that smart as it´s a polling procedure and has a greater overhead than calling File.GetLastWriteTime, but if not checking the content from too many places too often, it will do the work.
/// <summary>
/// type to set signals or check for them using a central file
/// </summary>
public class FileSignal
{
/// <summary>
/// path to the central file for signal control
/// </summary>
public string FilePath { get; private set; }
/// <summary>
/// numbers of retries when not able to retrieve (exclusive) file access
/// </summary>
public int MaxCollisions { get; private set; }
/// <summary>
/// timespan to wait until next try
/// </summary>
public TimeSpan SleepOnCollisionInterval { get; private set; }
/// <summary>
/// Timestamp of the last signal
/// </summary>
public DateTime LastSignal { get; private set; }
/// <summary>
/// constructor
/// </summary>
/// <param name="filePath">path to the central file for signal control</param>
/// <param name="maxCollisions">numbers of retries when not able to retrieve (exclusive) file access</param>
/// <param name="sleepOnCollisionInterval">timespan to wait until next try </param>
public FileSignal(string filePath, int maxCollisions, TimeSpan sleepOnCollisionInterval)
{
FilePath = filePath;
MaxCollisions = maxCollisions;
SleepOnCollisionInterval = sleepOnCollisionInterval;
LastSignal = GetSignalTimeStamp();
}
/// <summary>
/// constructor using a default value of 50 ms for sleepOnCollisionInterval
/// </summary>
/// <param name="filePath">path to the central file for signal control</param>
/// <param name="maxCollisions">numbers of retries when not able to retrieve (exclusive) file access</param>
public FileSignal(string filePath, int maxCollisions): this (filePath, maxCollisions, TimeSpan.FromMilliseconds(50))
{
}
/// <summary>
/// constructor using a default value of 50 ms for sleepOnCollisionInterval and a default value of 10 for maxCollisions
/// </summary>
/// <param name="filePath">path to the central file for signal control</param>
public FileSignal(string filePath) : this(filePath, 10)
{
}
private Stream GetFileStream(FileAccess fileAccess)
{
var i = 0;
while (true)
{
try
{
return new FileStream(FilePath, FileMode.Create, fileAccess, FileShare.None);
}
catch (Exception e)
{
i++;
if (i >= MaxCollisions)
{
throw e;
}
Thread.Sleep(SleepOnCollisionInterval);
};
};
}
private DateTime GetSignalTimeStamp()
{
if (!File.Exists(FilePath))
{
return DateTime.MinValue;
}
using (var stream = new FileStream(FilePath, FileMode.Open, FileAccess.Read, FileShare.None))
{
if(stream.Length == 0)
{
return DateTime.MinValue;
}
using (var reader = new BinaryReader(stream))
{
return DateTime.FromBinary(reader.ReadInt64());
};
}
}
/// <summary>
/// overwrites the existing central file and writes the current time into it.
/// </summary>
public void Signal()
{
LastSignal = DateTime.Now;
using (var stream = new FileStream(FilePath, FileMode.Create, FileAccess.Write, FileShare.None))
{
using (var writer = new BinaryWriter(stream))
{
writer.Write(LastSignal.ToBinary());
}
}
}
/// <summary>
/// returns true if the file signal has changed, otherwise false.
/// </summary>
public bool CheckIfSignalled()
{
var signal = GetSignalTimeStamp();
var signalTimestampChanged = LastSignal != signal;
LastSignal = signal;
return signalTimestampChanged;
}
}
Some tests for it:
[TestMethod]
public void TestSignal()
{
var fileSignal = new FileSignal(Path.GetTempFileName());
var fileSignal2 = new FileSignal(fileSignal.FilePath);
Assert.IsFalse(fileSignal.CheckIfSignalled());
Assert.IsFalse(fileSignal2.CheckIfSignalled());
Assert.AreEqual(fileSignal.LastSignal, fileSignal2.LastSignal);
fileSignal.Signal();
Assert.IsFalse(fileSignal.CheckIfSignalled());
Assert.AreNotEqual(fileSignal.LastSignal, fileSignal2.LastSignal);
Assert.IsTrue(fileSignal2.CheckIfSignalled());
Assert.AreEqual(fileSignal.LastSignal, fileSignal2.LastSignal);
Assert.IsFalse(fileSignal2.CheckIfSignalled());
}
In the thread dump you can find the Line Number as below.
for the main thread which is currently running...
"main" #1 prio=5 os_prio=0 tid=0x0000000002120800 nid=0x13f4 runnable [0x0000000001d9f000]
java.lang.Thread.State: **RUNNABLE**
at java.io.FileOutputStream.writeBytes(Native Method)
at java.io.FileOutputStream.write(FileOutputStream.java:313)
at com.rana.samples.**HighCPUUtilization.main(HighCPUUtilization.java:17)**
import datetime
datetime.date.today() # Returns 2018-01-15
datetime.datetime.now() # Returns 2018-01-15 09:00
One more thing you should pay attention to when selecting columns from N-D array using a list like this:
data[:,:,[1,9]]
If you are removing a dimension (by selecting only one row, for example), the resulting array will be (for some reason) permuted. So:
print data.shape # gives [10,20,30]
selection = data[1,:,[1,9]]
print selection.shape # gives [2,20] instead of [20,2]!!
In Windows, it's possible. You will need to install: Visual C++ Redistributable for Visual Studio 2015. I had the same problem and I installed both version (Windows x86 and Windows x64). Apparently both are necessary to make it work.
Since JSF 2.3 all the bean scopes defined in package javax.faces.bean
package have been deprecated to align the scopes with CDI. Moreover they're only applicable if your bean is using @ManagedBean
annotation. If you are using JSF versions below 2.3 refer to the legacy answer at the end.
From JSF 2.3 here are scopes that can be used on JSF Backing Beans:
1. @javax.enterprise.context.ApplicationScoped
: The application scope persists for the entire duration of the web application. That scope is shared among all requests and all sessions. This is useful when you have data for whole application.
2. @javax.enterprise.context.SessionScoped
: The session scope persists from the time that a session is established until session termination. The session context is shared between all requests that occur in the same HTTP session. This is useful when you wont to save data for a specific client for a particular session.
3. @javax.enterprise.context.ConversationScoped
: The conversation scope persists as log as the bean lives. The scope provides 2 methods: Conversation.begin()
and Conversation.end()
. These methods should called explicitly, either to start or end the life of a bean.
4. @javax.enterprise.context.RequestScoped
: The request scope is short-lived. It starts when an HTTP request is submitted and ends after the response is sent back to the client. If you place a managed bean into request scope, a new instance is created with each request. It is worth considering request scope if you are concerned about the cost of session scope storage.
5. @javax.faces.flow.FlowScoped
: The Flow scope persists as long as the Flow lives. A flow may be defined as a contained set of pages (or views) that define a unit of work. Flow scoped been is active as long as user navigates with in the Flow.
6. @javax.faces.view.ViewScoped
: A bean in view scope persists while the same JSF page is redisplayed. As soon as the user navigates to a different page, the bean goes out of scope.
The following legacy answer applies JSF version before 2.3
As of JSF 2.x there are 4 Bean Scopes:
- @SessionScoped
- @RequestScoped
- @ApplicationScoped
- @ViewScoped
Session Scope: The session scope persists from the time that a session is established until session termination. A session terminates if the web application invokes the invalidate method on the HttpSession object, or if it times out.
RequestScope: The request scope is short-lived. It starts when an HTTP request is submitted and ends after the response is sent back to the client. If you place a managed bean into request scope, a new instance is created with each request. It is worth considering request scope if you are concerned about the cost of session scope storage.
ApplicationScope: The application scope persists for the entire duration of the web application. That scope is shared among all requests and all sessions. You place managed beans into the application scope if a single bean should be shared among all instances of a web application. The bean is constructed when it is first requested by any user of the application, and it stays alive until the web application is removed from the application server.
ViewScope: View scope was added in JSF 2.0. A bean in view scope persists while the same JSF page is redisplayed. (The JSF specification uses the term view for a JSF page.) As soon as the user navigates to a different page, the bean goes out of scope.
Choose the scope you based on your requirement.
Source: Core Java Server Faces 3rd Edition by David Geary & Cay Horstmann [Page no. 51 - 54]
This may happen due to the following reasons:
INSTALLED_APPS
list in settings.py
(You have to add either the app name or the dotted path to the subclass of AppConfig in apps.py in the app folder, depending on the version of django you are using). Refer documentation: INSTALLED_APPS migrations
folder inside those apps. (Solution: just create that folder).__init__.py
file inside migrations
folder of those apps. (Solution: Just create an empty file with name __init__.py)__init__.py
file inside the app folder. (Solution: Just create an empty file with name __init__.py)models.py
file in the appmodels.py
doesn't inherit django.db.models.Model
models.py
Note:
A common mistake is to add migrations
folder in .gitignore
file. When cloned from remote repo, migrations
folder and/or __init__.py
files will be missing in local repo. This causes problem.
I suggest to gitignore migration files by adding the following lines to .gitignore
file
*/migrations/*
!*/migrations/__init__.py
add the host entry with the ip corresponding to the CN in the certificate
CN=someSubdomain.someorganisation.com
now update the ip with the CN name where you are trying to access the url.
It worked for me.
While there isn't anything you can do about the box in some circumstances, you can intercept someone clicking on a link. For me, this was worth the effort for most scenarios and as a fallback, I've left the unload event.
I've used Boxy instead of the standard jQuery Dialog, it is available here: http://onehackoranother.com/projects/jquery/boxy/
$(':input').change(function() {
if(!is_dirty){
// When the user changes a field on this page, set our is_dirty flag.
is_dirty = true;
}
});
$('a').mousedown(function(e) {
if(is_dirty) {
// if the user navigates away from this page via an anchor link,
// popup a new boxy confirmation.
answer = Boxy.confirm("You have made some changes which you might want to save.");
}
});
window.onbeforeunload = function() {
if((is_dirty)&&(!answer)){
// call this if the box wasn't shown.
return 'You have made some changes which you might want to save.';
}
};
You could attach to another event, and filter more on what kind of anchor was clicked, but this works for me and what I want to do and serves as an example for others to use or improve. Thought I would share this for those wanting this solution.
I have cut out code, so this may not work as is.
You can use \= in an substitution string and is something I do every so often.
If you have what's essentially an unordered list in vim, say using # as a marker, you can convert it over to an ordered list.
# CSSLINT
# PHPCS
# Charlie
# Delta
If it starts on line one, you can do
:1,6s/#/\=line(".")/g
To convert it over to
1 CSSLINT
2 PHPCS
3 Charlie
4 Delta
If it doesn't start on line one, just do the maths:
:16,20s/#/\=line(".") - 15/g
More info at :help sub-replace-expression
You can use html
instead of text
and replace each occurrence of \n
with <br>
. You will have to correctly escape your text though.
x = x.replace(/&/g, '&')
.replace(/>/g, '>')
.replace(/</g, '<')
.replace(/\n/g, '<br>');
Use:
$('#example').dataTable({
aLengthMenu: [
[25, 50, 100, 200, -1],
[25, 50, 100, 200, "All"]
],
iDisplayLength: -1
});
Or if using 1.10+
$('#example').dataTable({
paging: false
});
The option you should use is iDisplayLength:
$('#adminProducts').dataTable({
'iDisplayLength': 100
});
$('#table').DataTable({
"lengthMenu": [ [5, 10, 25, 50, -1], [5, 10, 25, 50, "All"] ]
});
It will Load by default all entries.
$('#example').dataTable({
aLengthMenu: [
[25, 50, 100, 200, -1],
[25, 50, 100, 200, "All"]
],
iDisplayLength: -1
});
Or if using 1.10+
$('#example').dataTable({
paging: false
});
If you want to load by default 25 not all do this.
$('#example').dataTable({
aLengthMenu: [
[25, 50, 100, 200, -1],
[25, 50, 100, 200, "All"]
],
});
KeyPress is a higher level of abstraction than KeyDown (and KeyUp). KeyDown and KeyUp are hardware related: the actual action of a key on the keyboard. KeyPress is more "I received a character from the keyboard".
Let's enjoy some hacky things:
Here is a Style
of Slider
as a NumericUpDown
, simple and easy to use, without any hidden code or third party library.
<Style TargetType="{x:Type Slider}">
<Style.Resources>
<Style x:Key="RepeatButtonStyle" TargetType="{x:Type RepeatButton}">
<Setter Property="Focusable" Value="false" />
<Setter Property="IsTabStop" Value="false" />
<Setter Property="Padding" Value="0" />
<Setter Property="Width" Value="20" />
</Style>
</Style.Resources>
<Setter Property="Stylus.IsPressAndHoldEnabled" Value="false" />
<Setter Property="SmallChange" Value="1" />
<Setter Property="Template">
<Setter.Value>
<ControlTemplate TargetType="{x:Type Slider}">
<Grid>
<Grid.RowDefinitions>
<RowDefinition />
<RowDefinition />
</Grid.RowDefinitions>
<Grid.ColumnDefinitions>
<ColumnDefinition />
<ColumnDefinition Width="Auto" />
</Grid.ColumnDefinitions>
<TextBox Grid.RowSpan="2"
Height="Auto"
Margin="0" Padding="0" VerticalAlignment="Stretch" VerticalContentAlignment="Center"
Text="{Binding RelativeSource={RelativeSource Mode=TemplatedParent}, Path=Value}" />
<RepeatButton Grid.Row="0" Grid.Column="1" Command="{x:Static Slider.IncreaseLarge}" Style="{StaticResource RepeatButtonStyle}">
<Path Data="M4,0 L0,4 8,4 Z" Fill="Black" />
</RepeatButton>
<RepeatButton Grid.Row="1" Grid.Column="1" Command="{x:Static Slider.DecreaseLarge}" Style="{StaticResource RepeatButtonStyle}">
<Path Data="M0,0 L4,4 8,0 Z" Fill="Black" />
</RepeatButton>
<Border x:Name="TrackBackground" Visibility="Collapsed">
<Rectangle x:Name="PART_SelectionRange" Visibility="Collapsed" />
</Border>
<Thumb x:Name="Thumb" Visibility="Collapsed" />
</Grid>
</ControlTemplate>
</Setter.Value>
</Setter>
</Style>
Since the problem is the non-trivial destructor so if the destructor is removed from the std::string
, it's possible to define a constexpr
instance of that type. Like this
struct constexpr_str {
char const* str;
std::size_t size;
// can only construct from a char[] literal
template <std::size_t N>
constexpr constexpr_str(char const (&s)[N])
: str(s)
, size(N - 1) // not count the trailing nul
{}
};
int main()
{
constexpr constexpr_str s("constString");
// its .size is a constexpr
std::array<int, s.size> a;
return 0;
}
Unfortunately there really isn't a set set of escape codes since it varies based on the language you are using.
However, keeping a page like the Regular Expression Tools Page or this Regular Expression Cheatsheet can go a long way to help you quickly filter things out.
Element which fired event we have in event property
event.currentTarget
We get DOM node object on which was set event handler.
Most nested node which started bubbling process we have in
event.target
Event object is always first attribute of event handler, example:
document.querySelector("someSelector").addEventListener(function(event){
console.log(event.target);
console.log(event.currentTarget);
});
More about event delegation You can read in http://maciejsikora.com/standard-events-vs-event-delegation/
As far as I know the only way to get the correct page breaks in tables with Google Chrome is giving it to the element <tr>
the property display: inline-table (or display: inline-block but it fits better in other cases that are not tables). Also should be used the properties "page-break-after: always; page-break-inside: avoid;" as written by @Phil Ross
<table>
<tr style="display:inline-table;page-break-after: always; page-break-inside: avoid;">
<td></td>
<td></td>
...
</tr>
</table>
This function allows you to get the date and time in lots of formats (see the bottom of this post).
# Get the current date or time
def getdatetime(timedateformat='complete'):
from datetime import datetime
timedateformat = timedateformat.lower()
if timedateformat == 'day':
return ((str(datetime.now())).split(' ')[0]).split('-')[2]
elif timedateformat == 'month':
return ((str(datetime.now())).split(' ')[0]).split('-')[1]
elif timedateformat == 'year':
return ((str(datetime.now())).split(' ')[0]).split('-')[0]
elif timedateformat == 'hour':
return (((str(datetime.now())).split(' ')[1]).split('.')[0]).split(':')[0]
elif timedateformat == 'minute':
return (((str(datetime.now())).split(' ')[1]).split('.')[0]).split(':')[1]
elif timedateformat == 'second':
return (((str(datetime.now())).split(' ')[1]).split('.')[0]).split(':')[2]
elif timedateformat == 'millisecond':
return (str(datetime.now())).split('.')[1]
elif timedateformat == 'yearmonthday':
return (str(datetime.now())).split(' ')[0]
elif timedateformat == 'daymonthyear':
return ((str(datetime.now())).split(' ')[0]).split('-')[2] + '-' + ((str(datetime.now())).split(' ')[0]).split('-')[1] + '-' + ((str(datetime.now())).split(' ')[0]).split('-')[0]
elif timedateformat == 'hourminutesecond':
return ((str(datetime.now())).split(' ')[1]).split('.')[0]
elif timedateformat == 'secondminutehour':
return (((str(datetime.now())).split(' ')[1]).split('.')[0]).split(':')[2] + ':' + (((str(datetime.now())).split(' ')[1]).split('.')[0]).split(':')[1] + ':' + (((str(datetime.now())).split(' ')[1]).split('.')[0]).split(':')[0]
elif timedateformat == 'complete':
return str(datetime.now())
elif timedateformat == 'datetime':
return (str(datetime.now())).split('.')[0]
elif timedateformat == 'timedate':
return ((str(datetime.now())).split('.')[0]).split(' ')[1] + ' ' + ((str(datetime.now())).split('.')[0]).split(' ')[0]
To obtain the time or date, just use getdatetime("<TYPE>")
, replacing <TYPE>
with one of the following arguments:
All example outputs use this model information: 25-11-2017 03:23:56.477017
Argument | Meaning | Example output |
---|---|---|
day | Get the current day | 25 |
month | Get the current month | 11 |
year | Get the current year | 2017 |
hour | Get the current hour | 03 |
minute | Get the current minute | 23 |
second | Get the current second | 56 |
millisecond | Get the current millisecond | 477017 |
yearmonthday | Get the year, month and day | 2017-11-25 |
daymonthyear | Get the day, month and year | 25-11-2017 |
hourminutesecond | Get the hour, minute and second | 03:23:56 |
secondminutehour | Get the second, minute and hour | 56:23:03 |
complete | Get the complete date and time | 2017-11-25 03:23:56.477017 |
datetime | Get the date and time | 2017-11-25 03:23:56 |
timedate | Get the time and date | 03:23:56 2017-11-25 |
Try this
<input class="txt" type="password" [(ngModel)]="input_pw" [hidden]="isHidden">
Another way of doing it, without 3rd party programs nor converters ("batch to exe" programs actually just put your batch file in the tmp folder and then run it silently so anyone can just fetch it from there an get your code) no vbs files (because nobody knows vbs) just one line at the beginning of the batch file.
@echo off > NUL
Execute gpedit.msc (local Policies)
Computer Configuration -> Windows settings -> Scripts -> Shutdown -> Properties -> Add
If in your site you have ajax calls loading some data, and this is the reason the page is loading slow, the best solution I found is with
$(document).ajaxStop(function(){
alert("All AJAX requests completed");
});
https://jsfiddle.net/44t5a8zm/ - here you can add some ajax calls and test it.
Try this:
;WITH CTE
AS
(
SELECT DISTINCT
M1.Product_ID Group_ID,
M1.Product_ID
FROM matches M1
LEFT JOIN matches M2
ON M1.Product_Id = M2.matching_Product_Id
WHERE M2.matching_Product_Id IS NULL
UNION ALL
SELECT
C.Group_ID,
M.matching_Product_Id
FROM CTE C
JOIN matches M
ON C.Product_ID = M.Product_ID
)
SELECT * FROM CTE ORDER BY Group_ID
You can use OPTION(MAXRECURSION n)
to control recursion depth.
I just made this at freecodecamp. It can easily be expanded.
function convertToRoman(num) {
var roman ="";
var values = [1000,900,500,400,100,90,50,40,10,9,5,4,1];
var literals = ["M","CM","D","CD","C","XC","L","XL","X","IX","V","IV","I"];
for(i=0;i<values.length;i++){
if(num>=values[i]){
if(5<=num && num<=8) num -= 5;
else if(1<=num && num<=3) num -= 1;
else num -= values[i];
roman += literals[i];
i--;
}
}
return roman;
}
The problem is that you're trying to bind a temporary to the reference, which C++ doesn't allow unless the reference is const
.
So you can do one of either the following:
void myfunc(string*& val)
{
// Do stuff to the string pointer
}
void myfunc2(string* const& val)
{
// Do stuff to the string pointer
}
int main()
// sometime later
{
// ...
string s;
string* ps = &s;
myfunc( ps); // OK because ps is not a temporary
myfunc2( &s); // OK because the parameter is a const&
// ...
return 0;
}
also you can use this way. it will change your big drawble fit to your canvas:
Resources res = getResources();
Bitmap bitmap = BitmapFactory.decodeResource(res, yourDrawable);
yourCanvas.drawBitmap(bitmap, 0, 0, yourPaint);
CSV files have no limit of rows you can add to them. Excel won't hold more that the 1 million lines of data if you import a CSV file having more lines.
Excel will actually ask you whether you want to proceed when importing more than 1 million data rows. It suggests to import the remaining data by using the text import wizard again - you will need to set the appropriate line offset.
I prefer to not set the error_reporting
inside my code. But in one case, a legacy product, there are so many notices, that they must be hidden.
So I used following snippet to set the serverside configured value for error_reporting
but subtract the E_NOTICE
s.
error_reporting(error_reporting() & ~E_NOTICE);
Now the error reporting setting can further be configured in php.ini
or .htaccess
. Only notices will always be disabled.
You can select dropdown option value by name
jQuery("#option_id").find("option:contains('Monday')").each(function()
{
if( jQuery(this).text() == 'Monday' )
{
jQuery(this).attr("selected","selected");
}
});
Why so complicated?
I solved my problem this way simply:
<pre>{{existingCategory+thisCategory}}</pre>
It will make <br />
automatically if the string contains '\n' that contain when I was saving data from textarea.
Noticed your comment about using it for email validation and needing a plugin, the validation plugin may help you, its located at http://bassistance.de/jquery-plugins/jquery-plugin-validation/, it comes with a e-mail rule as well.
If empName is a VARCHAR(50) column:
ALTER TABLE Employees MODIFY COLUMN empName VARCHAR(50) AFTER department;
EDIT
Per the comments, you can also do this:
ALTER TABLE Employees CHANGE COLUMN empName empName VARCHAR(50) AFTER department;
Note that the repetition of empName
is deliberate. You have to tell MySQL that you want to keep the same column name.
You should be aware that both syntax versions are specific to MySQL. They won't work, for example, in PostgreSQL or many other DBMSs.
Another edit: As pointed out by @Luis Rossi in a comment, you need to completely specify the altered column definition just before the AFTER
modifier. The above examples just have VARCHAR(50)
, but if you need other characteristics (such as NOT NULL
or a default value) you need to include those as well. Consult the docs on ALTER TABLE
for more info.
Here's a method I wrote to check if an URL exists or not. I had a requirement to add a request header. It's Groovy but should be fairly simple to adapt to Java. Essentially I'm using the org.springframework.web.client.RestTemplate#execute(java.lang.String, org.springframework.http.HttpMethod, org.springframework.web.client.RequestCallback, org.springframework.web.client.ResponseExtractor<T>, java.lang.Object...)
API method. I guess the solution you arrive at depends at least in part on the HTTP method you want to execute. The key take away from example below is that I'm passing a Groovy closure (The third parameter to method restTemplate.execute()
, which is more or less, loosely speaking a Lambda in Java world) that is executed by the Spring API as a callback to be able to manipulate the request object before Spring executes the command,
boolean isUrlExists(String url) {
try {
return (restTemplate.execute(url, HttpMethod.HEAD,
{ ClientHttpRequest request -> request.headers.add('header-name', 'header-value') },
{ ClientHttpResponse response -> response.headers }) as HttpHeaders)?.get('some-response-header-name')?.contains('some-response-header-value')
} catch (Exception e) {
log.warn("Problem checking if $url exists", e)
}
false
}
I haven't heard that Fortan is significantly faster than C, but it might be conceivable tht in certain cases it would be faster. And the key is not in the language features that are present, but in those that (usually) absent.
An example are C pointers. C pointers are used pretty much everywhere, but the problem with pointers is that the compiler usually can't tell if they're pointing to the different parts of the same array.
For example if you wrote a strcpy routine that looked like this:
strcpy(char *d, const char* s)
{
while(*d++ = *s++);
}
The compiler has to work under the assumption that the d and s might be overlapping arrays. So it can't perform an optimization that would produce different results when the arrays overlap. As you'd expect, this considerably restricts the kind of optimizations that can be performed.
[I should note that C99 has a "restrict" keyword that explictly tells the compilers that the pointers don't overlap. Also note that the Fortran too has pointers, with semantics different from those of C, but the pointers aren't ubiquitous as in C.]
But coming back to the C vs. Fortran issue, it is conceivable that a Fortran compiler is able to perform some optimizations that might not be possible for a (straightforwardly written) C program. So I wouldn't be too surprised by the claim. However, I do expect that the performance difference wouldn't be all that much. [~5-10%]
I was looking for something along what you wanted, but wanted to put it back into a variable.
So this is what I did
variable = ['hello this is x' x ', this is now y' y ', finally this is d:' d]
basically
variable = [str1 str2 str3 str4 str5 str6]
Please refer below Ajax overview:
In general I would consider setting up of an environment variable (like PYTHONPATH)
to be a bad practice. While this might be fine for a one off debugging but using this as
a regular practice might not be a good idea.
Usage of environment variable leads to situations like "it works for me" when some one
else reports problems in the code base. Also one might carry the same practice with the
test environment as well, leading to situations like the tests running fine for a
particular developer but probably failing when some one launches the tests.
Convert your JSON object to JSON String using
JSON.stringify({"name":"testName"})
or manually. @RequestBody expecting json string instead of json object.
Note:stringify function having issue with some IE version, firefox it will work
verify the syntax of your ajax request for POST request. processData:false property is required in ajax request
$.ajax({
url:urlName,
type:"POST",
contentType: "application/json; charset=utf-8",
data: jsonString, //Stringified Json Object
async: false, //Cross-domain requests and dataType: "jsonp" requests do not support synchronous operation
cache: false, //This will force requested pages not to be cached by the browser
processData:false, //To avoid making query String instead of JSON
success: function(resposeJsonObject){
// Success Action
}
});
Controller
@RequestMapping(value = urlPattern , method = RequestMethod.POST)
public @ResponseBody Test addNewWorker(@RequestBody Test jsonString) {
//do business logic
return test;
}
@RequestBody
-Covert Json object to java
@ResponseBody
- convert Java object to json
If you want authentication try domainname\administrator as the username.
If you don't want authentication then remove all the tickboxes in the authenticated access section of the direcory security > edit window.
Another silly mistake you can do is copy recursive function from non class environment to class and don`t change inner self calls to $this->method_name()
i`m writing this because couldn`t understand why i got this error and this thread is first in google when you search for this error.
I found this problem too. Because centos service depend on multi-user.target for none desktop Cenots 7.2. so I delete multi-user.target from my .service file. It had missed.
Certificate must cover both www and non-www https. Some provider's certs cover both for www.xxxx.yyy, but only one for xxxx.yyy.
Turn on rewrites:
RewriteEngine On
Make all http use https:
RewriteCond %{SERVER_PORT} 80
RewriteRule ^(.*)$ https://xxx.yyy/$1 [L,R=301]
Make only www https use the non-www https:
RewriteCond %{SERVER_PORT} 443
RewriteCond %{HTTP_HOST} ^www[.].+$
RewriteRule ^(.*)$ https://xxxx.yyy/$1 [L,R=301]
Cannot be processing non-www https, otherwise a loop occurs.
In [L,R=301]:
More generic
A more generic approach -- not port-dependant -- is:
RewriteCond %{HTTP_HOST} ^www\.
RewriteRule ^(.*)$ https://xxxx.yyy/$1 [R=301,QSA]
to make any url with www
drop it.
RewriteCond %{HTTPS} !on
RewriteCond %{HTTPS} !1
RewriteCond %{HTTP:X-Forwarded-Proto} !https
RewriteCond %{HTTP:X-Forwarded-SSL} !on
RewriteRule ^(.*)$ https://xxxx.yyy/$1 [R=301,QSA]
to force any non-https url, even for those system downstream from load-balancers that drop https, use https.
Note that I have not tested the forwarded
options, so would appreciate feedback on any issues with them. Those lines could be left out if your system is not behind a load-balancer.
TO HTTP_HOST or not
You can use ${HTTP_HOST}
to be part of the URL in the RewriteRule
, or you can use your explicit canonical domain name text (xxxx.yyy
above).
Specifying the domain name explicitly ensures that no slight-of-hand character-bending means are used in the user-supplied URL to possibly trick your site into doing something it might not be prepared for, or at least ensures that the proper domain name appears in the address bar, regardless of which URL string opened the page.
It might even help convert punycode-encoded domains to show the proper unicode characters in the address bar.
In iOS 6.0 and above, things have changed with the new dequeueReusableHeaderFooterViewWithIdentifier
API.
I have written a guide (tested on iOS 9), which can be summarised as such:
UITableViewHeaderFooterView
viewDidLoad
viewForHeaderInSection
and use dequeueReusableHeaderFooterViewWithIdentifier
to get back the header/footerclearInterval is one option:
var interval = setInterval(doStuff, 2000); // 2000 ms = start after 2sec
function doStuff() {
alert('this is a 2 second warning');
clearInterval(interval);
}
At this point method
final PowerManager pm = (PowerManager) getSystemService(Context.POWER_SERVICE);
this.mWakeLock = pm.newWakeLock(PowerManager.SCREEN_DIM_WAKE_LOCK, "My Tag");
this.mWakeLock.acquire();
is deprecated.
You should use
getWindow().addFlags(WindowManager.LayoutParams.FLAG_KEEP_SCREEN_ON);
and getWindow().clearFlags(android.view.WindowManager.LayoutParams.FLAG_KEEP_SCREEN_ON);
I was looking for a way how to output a formatted time with minimal code, so here is my solution. Many people use Pandas anyway, so in some cases this can save from additional library imports.
import pandas as pd
start = pd.Timestamp.now()
# code
print(pd.Timestamp.now()-start)
Output:
0 days 00:05:32.541600
I would recommend using this if time precision is not the most important, otherwise use time
library:
%timeit pd.Timestamp.now()
outputs 3.29 µs ± 214 ns per loop
%timeit time.time()
outputs 154 ns ± 13.3 ns per loop
If you're going to access your local computer (or any computer) using UNC, you'll need to setup a share. If you haven't already setup a share, you could use the default administrative shares. Example:
\\localhost\c$\my_dir
... accesses a folder called "my_dir" via UNC on your C: drive. By default all the hard drives on your machine are shared with hidden shares like c$, d$, etc.
With Entity Framework 6.1, you can now do this:
[Index("IX_FirstAndSecond", 1, IsUnique = true)]
public int FirstColumn { get; set; }
[Index("IX_FirstAndSecond", 2, IsUnique = true)]
public int SecondColumn { get; set; }
The second parameter in the attribute is where you can specify the order of the columns in the index.
More information: MSDN
Use unlist
with use.names = FALSE
argument.
unlist(myList, use.names=FALSE)
Or File::Find
use File::Find;
finddepth(\&wanted, '/some/path/to/dir');
sub wanted { print };
It'll go through subdirectories if they exist.
You can use a ComboBox
with its ComboBoxStyle
(appears as DropDownStyle
in later versions) set to DropDownList
. See: http://msdn.microsoft.com/en-us/library/system.windows.forms.comboboxstyle.aspx
I just found this question after a quick search whilst trying to solve the problem myself and I've come up with a hybrid based on a few of the suggestions above.
I like DevPlayer's idea of using a wrapper script, but the downside is that you end up maintaining multiple wrappers for different OSes, so I decided to write the wrapper in python, but use the same basic "grab the version by running the exe" logic and came up with this.
I think it should work for 2.5 and onwards. I've tested it on 2.66, 2.7.0 and 3.1.2 on Linux and 2.6.1 on OS X so far.
import sys, subprocess
args = [sys.executable,"--version"]
output, error = subprocess.Popen(args ,stdout = subprocess.PIPE, stderr = subprocess.PIPE).communicate()
print("The version is: '%s'" %error.decode(sys.stdout.encoding).strip("qwertyuiopasdfghjklzxcvbnmQWERTYUIOPASDFGHJKLMNBVCXZ,.+ \n") )
Yes, I know the final decode/strip line is horrible, but I just wanted to quickly grab the version number. I'm going to refine that.
This works well enough for me for now, but if anyone can improve it (or tell me why it's a terrible idea) that'd be cool too.
Use this in your batch file:
%~dp0\bin\Iris.exe
%~dp0
resolves to the full path of the folder in which the batch script resides.
Try This
import hashlib
user = input("Enter text here ")
h = hashlib.md5(user.encode())
h2 = h.hexdigest()
print(h2)
The standard colormaps also all have reversed versions. They have the same names with _r
tacked on to the end. (Documentation here.)
How about something like:
struct foo bar;
update(init_id(42, init_dont_care(&bar)));
with:
struct foo* init_dont_care(struct foo* bar) {
bar->id = dont_care;
bar->route = dont_care;
bar->backup_route = dont_care;
bar->current_route = dont_care;
return bar;
}
and:
struct foo* init_id(int id, struct foo* bar) {
bar->id = id;
return bar;
}
and correspondingly:
struct foo* init_route(int route, struct foo* bar);
struct foo* init_backup_route(int backup_route, struct foo* bar);
struct foo* init_current_route(int current_route, struct foo* bar);
In C++, a similar pattern has a name which I don't remember just now.
EDIT: It's called the Named Parameter Idiom.
Swift 3, with extension:
extension UIView{
var globalPoint :CGPoint? {
return self.superview?.convert(self.frame.origin, to: nil)
}
var globalFrame :CGRect? {
return self.superview?.convert(self.frame, to: nil)
}
}
If you want to display date time on view without model, just write this:
Date : @DateTime.Now
The output will be:
Date : 16-Aug-17 2:32:10 PM
grep . FILE
(And if you really want to do it in sed, then: sed -e /^$/d FILE
)
(And if you really want to do it in awk, then: awk /./ FILE
)
You need to check if is a string to avoid getting a child element
var getIdFromDomObj = function(domObj){
var id = domObj.id;
return typeof id === 'string' ? id : false;
};
Sometimes you inherit brittle code that is already expecting magic values in a lot of places. Everyone is correct, you should use NULL if possible. However, as a shortcut to make sure every reference to that value is the same, I like to put "constants" (for lack of a better name) in SQL in a scaler function and then call that function when I need the value. That way if I ever want to update them all to be something else, I can do so easily. Or if I want to change the default value moving forward, I only have one place to update it.
The following code creates the function and a table using it for the default DateTime value. Then inserts and select from the table without specifying the value for Modified. Then cleans up after itself. I hope this helps.
-- CREATE FUNCTION
CREATE FUNCTION dbo.DateTime_MinValue ( )
RETURNS DATETIME
AS
BEGIN
DECLARE @dateTime_min DATETIME ;
SET @dateTime_min = '1/1/1753 12:00:00 AM'
RETURN @dateTime_min ;
END ;
GO
-- CREATE TABLE USING FUNCTION FOR DEFAULT
CREATE TABLE TestTable
(
TestTableId INT IDENTITY(1, 1)
PRIMARY KEY CLUSTERED ,
Value VARCHAR(50) ,
Modified DATETIME DEFAULT dbo.DateTime_MinValue()
) ;
-- INSERT VALUE INTO TABLE
INSERT INTO TestTable
( Value )
VALUES ( 'Value' ) ;
-- SELECT FROM TABLE
SELECT TestTableId ,
VALUE ,
Modified
FROM TestTable ;
-- CLEANUP YOUR DB
DROP TABLE TestTable ;
DROP FUNCTION dbo.DateTime_MinValue ;
public void onClick (View v)
{
switch (v.getId())
{
case R.id.ButtonCopy:
copyToClipBoard();
break;
case R.id.ButtonPaste:
pasteFromClipBoard();
break;
default:
Log.d(TAG, "OnClick: Unknown View Received!");
break;
}
}
// Copy EditCopy text to the ClipBoard
private void copyToClipBoard()
{
ClipboardManager clipMan = (ClipboardManager) getSystemService(Context.CLIPBOARD_SERVICE);
clipMan.setPrimaryClip(editCopy.getText());
}
you can try this..
It seems like you can also use the patch command. Put the diff in the root of the repository and run patch
from the command line.
patch -i yourcoworkers.diff
or
patch -p0 -i yourcoworkers.diff
You may need to remove the leading folder structure if they created the diff without using --no-prefix
.
If so, then you can remove the parts of the folder that don't apply using:
patch -p1 -i yourcoworkers.diff
The -p(n) signifies how many parts of the folder structure to remove.
More information on creating and applying patches here.
You can also use
git apply yourcoworkers.diff --stat
to see if the diff by default will apply any changes. It may say 0 files affected if the patch is not applied correctly (different folder structure).
It's a linker error. ld
is the linker, so if you get an error message ending with "ld returned 1 exit status", that tells you that it's a linker error.
The error message tells you that none of the object files you're linking against contains a definition for avergecolumns
. The reason for that is that the function you've defined is called averagecolumns
(in other words: you misspelled the function name when calling the function (and presumably in the header file as well - otherwise you'd have gotten a different error at compile time)).
Here is the example for having one or more checkboxes value. If you have two or more checkboxes and need values then this would really help.
function myFunction() {_x000D_
var selchbox = [];_x000D_
var inputfields = document.getElementsByName("myCheck");_x000D_
var ar_inputflds = inputfields.length;_x000D_
_x000D_
for (var i = 0; i < ar_inputflds; i++) {_x000D_
if (inputfields[i].type == 'checkbox' && inputfields[i].checked == true)_x000D_
selchbox.push(inputfields[i].value);_x000D_
}_x000D_
return selchbox;_x000D_
_x000D_
}_x000D_
_x000D_
document.getElementById('btntest').onclick = function() {_x000D_
var selchb = myFunction();_x000D_
console.log(selchb);_x000D_
}
_x000D_
Checkbox:_x000D_
<input type="checkbox" name="myCheck" value="UK">United Kingdom_x000D_
<input type="checkbox" name="myCheck" value="USA">United States_x000D_
<input type="checkbox" name="myCheck" value="IL">Illinois_x000D_
<input type="checkbox" name="myCheck" value="MA">Massachusetts_x000D_
<input type="checkbox" name="myCheck" value="UT">Utah_x000D_
_x000D_
<input type="button" value="Click" id="btntest" />
_x000D_
In a Firebird database the AFTER myOtherColumn
does not work but you can try re-positioning the column using:
ALTER TABLE name ALTER column POSITION new_position
I guess it may work in other cases as well.
For my case, I Tried all above method, and none works. However I solve the problem now. Here's my trick:
In Control Panel -> "Programs" -> "Turn Windows features on or off" (under "Programs and Features") and I try to locate "Hyper-V", but I cannot locate "Hyper-V", however I have "Windows Virtual PC", and I suspect they are the same thing, so I disable it, reboot, and it works!
To stage an entire folder, you'd enter this command:
$git add .
The period will add all files in the folder.
For integers with values of 0 and 1 you can try:
value = abs(value - 1);
MWE in C:
#include <stdio.h>
#include <stdlib.h>
int main()
{
printf("Hello, World!\n");
int value = 0;
int i;
for (i=0; i<10; i++)
{
value = abs(value -1);
printf("%d\n", value);
}
return 0;
}
In my project , I use the XMLHttpRequest to send multipart/form-data. I think it will fit you to.
and the uploader code
let xhr = new XMLHttpRequest();
xhr.open('POST', 'http://www.example.com/rest/api', true);
xhr.withCredentials = true;
xhr.send(formData);
Here is example : https://github.com/wangzilong/angular2-multipartForm
I had the same issue and I found this.
On the url, it requires the server key in the end and not the api key for the app.
So Basically, you just add the server key in the end of the URL like this:
Now, to obtain the server key, just follow these steps:
1) Go to Developer Console https://code.google.com/apis/console/
2) In the Credentials, under Public API Access, Create New key
3) Select the server key from the option.
4) Enter your IP Address on the field and if you have more ip addresses, you can just add on every single line.NOTE: Enter the IP Address only when you want to use it for your testing purpose. Else leave the IP Address section blank.
5) Once you are done, click create and your new Server Key will be generated and you can then add that server key to your URL.
Last thing is that, instead of putting the sensor=true in the middle of the URL, you can add it in the end like this:
This will definitely solve the issue and just remember to use the server key for Places API
.
EDIT
I believe the web URL has changed in the past years. You can access developers console from here now - https://console.developers.google.com/apis/dashboard
Hope this answer will help you and other viewers. Good Luck .. :)
To remove the diacritics, use iconv:
$val = iconv('ISO-8859-1','ASCII//TRANSLIT',$val);
or
$val = iconv('UTF-8','ASCII//TRANSLIT',$val);
note that php has some weird bug in that it (sometimes?) needs to have a locale set to make these conversions work, using setlocale().
edit tested, it gets all of your diacritics out of the box:
$val = "á|â|à|å|ä ð|é|ê|è|ë í|î|ì|ï ó|ô|ò|ø|õ|ö ú|û|ù|ü æ ç ß abc ABC 123";
echo iconv('UTF-8','ASCII//TRANSLIT',$val);
output (updated 2019-12-30)
a|a|a|a|a d|e|e|e|e i|i|i|i o|o|o|o|o|o u|u|u|u ae c ss abc ABC 123
Note that ð
is correctly transliterated to d
instead of o
, as in the accepted answer.
public static bool IsPositive<T>(T value)
where T : struct, IComparable<T>
{
return value.CompareTo(default(T)) > 0;
}
The default tooltip can be edited by using the title attribute
<input type='file' title="your text" />
But if you try to remove this tooltip
<input type='file' title=""/>
This won't work. Here is my little trick to work this, try title with a space. It will work.:)
<input type='file' title=" "/>
I was able to solve this on OS X by shutting down the existing mysql.server
that was running:
mysql.server stop
The starting:
mysql.server start
From there I could run mysql.server restart
without throwing the ERROR.
$0 returns the most recently selected element or JavaScript object, $1 returns the second most recently selected one, and so on.
Refer : Command Line API Reference
Use a for loop. There's nothing built into array. Or switch to a java.util Collection class.
The word "canonical" is just a synonym for "standard" or "usual". It doesn`t have any Java-specific meaning.
Normally, for every connecting client the server forks a child process that communicates with the client (TCP). The parent server hands off to the child process an established socket that communicates back to the client.
When you send the data to a socket from your child server, the TCP stack in the OS creates a packet going back to the client and sets the "from port" to 80.
"C:\Program Files (x86)\ffmpegX86shared\bin\ffmpeg.exe" -y -i "C:\testfile.ts" -an -vcodec libx264 -g 75 -keyint_min 12 -vb 4000k -vprofile high -level 40 -s 1920x1080 -y -threads 0 -r 25 "C:\testfile.h264"
The above worked for me on a Windows machine using a FFmpeg Win32 shared build by Kyle Schwarz. The build was compiled on: Feb 22 2013, at: 01:09:53
Note that -an defines that audio should be skipped.
x ~= 0 or 1
is the same as ((x ~= 0) or 1)
x ~=(0 or 1)
is the same as (x ~= 0)
.
try something like this instead.
function isNot0Or1(x)
return (x ~= 0 and x ~= 1)
end
print( isNot0Or1(-1) == true )
print( isNot0Or1(0) == false )
print( isNot0Or1(1) == false )
You can do it without modifying the XML stream: Tell the XmlReader to not be so picky.
Setting the XmlReaderSettings.ConformanceLevel
to ConformanceLevel.Fragment
will let the parser ignore the fact that there is no root node.
XmlReaderSettings settings = new XmlReaderSettings();
settings.ConformanceLevel = ConformanceLevel.Fragment;
using (XmlReader reader = XmlReader.Create(tr,settings))
{
...
}
Now you can parse something like this (which is an real time XML stream, where it is impossible to wrap with a node).
<event>
<timeStamp>1354902435238</timeStamp>
<eventId>7073822</eventId>
</event>
<data>
<time>1354902435341</time>
<payload type='80'>7d1300786a0000000bf9458b0518000000000000000000000000000000000c0c030306001b</payload>
</data>
<data>
<time>1354902435345</time>
<payload type='80'>fd1260780912ff3028fea5ffc0387d640fa550f40fbdf7afffe001fff8200fff00f0bf0e000042201421100224ff40312300111400004f000000e0c0fbd1e0000f10e0fccc2ff0000f0fe00f00f0eed00f11e10d010021420401</payload>
</data>
<data>
<time>1354902435347</time>
<payload type='80'>fd126078ad11fc4015fefdf5b042ff1010223500000000000000003007ff00f20e0f01000e0000dc0f01000f000000000000004f000000f104ff001000210f000013010000c6da000000680ffa807800200000000d00c0f0</payload>
</data>
Definition
Observer pattern is used when there is one to many relationship between objects such as if one object is modified, its dependent objects are to be notified automatically and corresponding changes are done to all dependent objects.
Examples
Let's say, your permanent address is changed then you need to notify passport authority and pan card authority. So here passport authority and pan card authority are observers and You are a subject.
On Facebook also, If you subscribe to someone then whenever new updates happen then you will be notified.
When to use it:
When one object changes its state, then all other dependents object must automatically change their state to maintain consistency
When the subject doesn't know about the number of observers it has.
When an object should be able to notify other objects without knowing who objects are.
Step 1
Create Subject class.
Subject.java
import java.util.ArrayList;
import java.util.List;
public class Subject {
private List<Observer> observers
= new ArrayList<Observer>();
private int state;
public int getState() {
return state;
}
public void setState(int state) {
this.state = state;
notifyAllObservers();
}
public void attach(Observer observer){
observers.add(observer);
}
public void notifyAllObservers(){
for (Observer observer : observers) {
observer.update();
}
}
}
Step 2
Create Observer class.
Observer.java
public abstract class Observer {
protected Subject subject;
public abstract void update();
}
Step 3
Create concrete observer classes
BinaryObserver.java
public class BinaryObserver extends Observer{
public BinaryObserver(Subject subject){
this.subject = subject;
this.subject.attach(this);
}
@Override
public void update() {
System.out.println( "Binary String: "
+ Integer.toBinaryString( subject.getState() ) );
}
}
OctalObserver.java
public class OctalObserver extends Observer{
public OctalObserver(Subject subject){
this.subject = subject;
this.subject.attach(this);
}
@Override
public void update() {
System.out.println( "Octal String: "
+ Integer.toOctalString( subject.getState() ) );
}
}
HexaObserver.java
public class HexaObserver extends Observer{
public HexaObserver(Subject subject){
this.subject = subject;
this.subject.attach(this);
}
@Override
public void update() {
System.out.println( "Hex String: "
+ Integer.toHexString( subject.getState() ).toUpperCase() );
}
}
Step 4
Use Subject and concrete observer objects.
ObserverPatternDemo.java
public class ObserverPatternDemo {
public static void main(String[] args) {
Subject subject = new Subject();
new HexaObserver(subject);
new OctalObserver(subject);
new BinaryObserver(subject);
System.out.println("First state change: 15");
subject.setState(15);
System.out.println("Second state change: 10");
subject.setState(10);
}
}
Step 5
Verify the output.
First state change: 15
Hex String: F
Octal String: 17
Binary String: 1111
Second state change: 10
Hex String: A
Octal String: 12
Binary String: 1010
You could try:
export ENVVAR=value
in virtualenv_root/bin/activate. Basically the activate script is what is executed when you start using the virtualenv so you can put all your customization in there.
You could insert something like this:
personPlay = "B";
while (!personPlay.equals("R") && !personPlay.equals("P") && !personPlay.equals("S")) {
//Get player's play from input-- note that this is
// stored as a string
System.out.println("Enter your play: ");
personPlay = scan.next();
//Make player's play uppercase for ease of comparison
personPlay = personPlay.toUpperCase();
if (!personPlay.equals("R") && !personPlay.equals("P") && !personPlay.equals("S"))
System.out.println("Invalid move. Try again.");
}
In case you need to add a fence of 1s to an array:
>>> mat = np.zeros((4,4), np.int32)
>>> mat
array([[0, 0, 0, 0],
[0, 0, 0, 0],
[0, 0, 0, 0],
[0, 0, 0, 0]])
>>> mat[0,:] = mat[:,0] = mat[:,-1] = mat[-1,:] = 1
>>> mat
array([[1, 1, 1, 1],
[1, 0, 0, 1],
[1, 0, 0, 1],
[1, 1, 1, 1]])
I can tell you (as a dialup user) that the same page over SSL is several times slower than via regular HTTP...
An extension to what GenericTypeTea says - Here is a concrete example:
<form onsubmit="return false">
The above form will not submit, whereas...
<form onsubmit="false">
...does nothing, i.e. the form will submit.
Without the return
, onsubmit
doesn't receive a value and the event is executed just like without any handler at all.
I'm very thoroughly investigating the matter of accuracy/rssi/proximity with iBeacons and I really really think that all the resources in the Internet (blogs, posts in StackOverflow) get it wrong.
davidgyoung (accepted answer, > 100 upvotes) says:
Note that the term "accuracy" here is iOS speak for distance in meters.
Actually, most people say this but I have no idea why! Documentation makes it very very clear that CLBeacon.proximity:
Indicates the one sigma horizontal accuracy in meters. Use this property to differentiate between beacons with the same proximity value. Do not use it to identify a precise location for the beacon. Accuracy values may fluctuate due to RF interference.
Let me repeat: one sigma accuracy in meters. All 10 top pages in google on the subject has term "one sigma" only in quotation from docs, but none of them analyses the term, which is core to understand this.
Very important is to explain what is actually one sigma accuracy. Following URLs to start with: http://en.wikipedia.org/wiki/Standard_error, http://en.wikipedia.org/wiki/Uncertainty
In physical world, when you make some measurement, you always get different results (because of noise, distortion, etc) and very often results form Gaussian distribution. There are two main parameters describing Gaussian curve:
one sigma is another way to describe how narrow/wide is gaussian curve.
It simply says that if mean of measurement is X, and one sigma is s, then 68% of all measurements will be between X - s
and X + s
.
Example. We measure distance and get a gaussian distribution as a result. The mean is 10m. If s is 4m, then it means that 68% of measurements were between 6m and 14m.
When we measure distance with beacons, we get RSSI and 1-meter calibration value, which allow us to measure distance in meters. But every measurement gives different values, which form gaussian curve. And one sigma (and accuracy) is accuracy of the measurement, not distance!
It may be misleading, because when we move beacon further away, one sigma actually increases because signal is worse. But with different beacon power-levels we can get totally different accuracy values without actually changing distance. The higher power, the less error.
There is a blog post which thoroughly analyses the matter: http://blog.shinetech.com/2014/02/17/the-beacon-experiments-low-energy-bluetooth-devices-in-action/
Author has a hypothesis that accuracy is actually distance. He claims that beacons from Kontakt.io are faulty beacuse when he increased power to the max value, accuracy value was very small for 1, 5 and even 15 meters. Before increasing power, accuracy was quite close to the distance values. I personally think that it's correct, because the higher power level, the less impact of interference. And it's strange why Estimote beacons don't behave this way.
I'm not saying I'm 100% right, but apart from being iOS developer I have degree in wireless electronics and I think that we shouldn't ignore "one sigma" term from docs and I would like to start discussion about it.
It may be possible that Apple's algorithm for accuracy just collects recent measurements and analyses the gaussian distribution of them. And that's how it sets accuracy. I wouldn't exclude possibility that they use info form accelerometer to detect whether user is moving (and how fast) in order to reset the previous distribution distance values because they have certainly changed.
There are a number of ways to get information on the attributes of your DataFrame or Series.
Create Sample DataFrame and Series
df = pd.DataFrame({'a':[5, 2, np.nan], 'b':[ 9, 2, 4]})
df
a b
0 5.0 9
1 2.0 2
2 NaN 4
s = df['a']
s
0 5.0
1 2.0
2 NaN
Name: a, dtype: float64
shape
AttributeThe shape
attribute returns a two-item tuple of the number of rows and the number of columns in the DataFrame. For a Series, it returns a one-item tuple.
df.shape
(3, 2)
s.shape
(3,)
len
functionTo get the number of rows of a DataFrame or get the length of a Series, use the len
function. An integer will be returned.
len(df)
3
len(s)
3
size
attributeTo get the total number of elements in the DataFrame or Series, use the size
attribute. For DataFrames, this is the product of the number of rows and the number of columns. For a Series, this will be equivalent to the len
function:
df.size
6
s.size
3
ndim
attributeThe ndim
attribute returns the number of dimensions of your DataFrame or Series. It will always be 2 for DataFrames and 1 for Series:
df.ndim
2
s.ndim
1
count
methodThe count
method can be used to return the number of non-missing values for each column/row of the DataFrame. This can be very confusing, because most people normally think of count as just the length of each row, which it is not. When called on a DataFrame, a Series is returned with the column names in the index and the number of non-missing values as the values.
df.count() # by default, get the count of each column
a 2
b 3
dtype: int64
df.count(axis='columns') # change direction to get count of each row
0 2
1 2
2 1
dtype: int64
For a Series, there is only one axis for computation and so it just returns a scalar:
s.count()
2
info
method for retrieving metadataThe info
method returns the number of non-missing values and data types of each column
df.info()
<class 'pandas.core.frame.DataFrame'>
RangeIndex: 3 entries, 0 to 2
Data columns (total 2 columns):
a 2 non-null float64
b 3 non-null int64
dtypes: float64(1), int64(1)
memory usage: 128.0 bytes
var path = window.location.pathname;
var page = path.split("/").pop();
console.log( page );
getimagesize('image.jpg')
function works only if allow_url_fopen
is set to 1 or On inside php.ini file on the server,
if it is not enabled, one should use
ini_set('allow_url_fopen',1);
on top of the file where getimagesize() function is used.
I'm using cdn boostrap, the solution that I found was: First include the cdn bootstrap, then you include the file .css where you are editing the default styles of bootstrap.
In 12c, here's the new way:
select bla
from bla
where bla
order by finaldate desc
fetch first 1 rows only;
How nice is that!
Spring is moving away from XML files and uses annotations heavily. The following example is a simple standalone Spring application which uses annotation instead of XML files.
package com.zetcode.bean;
import org.springframework.stereotype.Component;
@Component
public class Message {
private String message = "Hello there!";
public void setMessage(String message){
this.message = message;
}
public String getMessage(){
return message;
}
}
This is a simple bean. It is decorated with the @Component
annotation for auto-detection by Spring container.
package com.zetcode.main;
import com.zetcode.bean.Message;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.context.ApplicationContext;
import org.springframework.context.annotation.AnnotationConfigApplicationContext;
import org.springframework.context.annotation.ComponentScan;
@ComponentScan(basePackages = "com.zetcode")
public class Application {
public static void main(String[] args) {
ApplicationContext context
= new AnnotationConfigApplicationContext(Application.class);
Application p = context.getBean(Application.class);
p.start();
}
@Autowired
private Message message;
private void start() {
System.out.println("Message: " + message.getMessage());
}
}
This is the main Application
class. The @ComponentScan
annotation searches for components. The @Autowired
annotation injects the bean into the message
variable. The AnnotationConfigApplicationContext
is used to create the Spring application context.
My Standalone Spring tutorial shows how to create a standalone Spring application with both XML and annotations.
REMOTE_ADDR
can not be trusted.
Anyway, try
$ipAddress = $_SERVER['REMOTE_ADDR'];
if (array_key_exists('HTTP_X_FORWARDED_FOR', $_SERVER)) {
$ipAddress = array_pop(explode(',', $_SERVER['HTTP_X_FORWARDED_FOR']));
}
Edit: Also, does your server's router have port forwarding enabled? It may be possible that it's messing with the packets.
Security warning: REMOTE_ADDR can be fully trusted! It comes from your own webserver and contains the IP that was used to access it. You don't even need to quote() it for SQL inserts.
But HTTP_X_FORWARDED_FOR is taken directly from the HTTP headers, it can contain the picture of a cat, malicious code, any content. Treat it like that, never trust it.
Another candidate solution using a regex. Retains token order, correctly matches multiple tokens of the same type in a row. The downside is that the regex is kind of nasty.
package javaapplication2;
import java.util.ArrayList;
import java.util.List;
import java.util.regex.Matcher;
import java.util.regex.Pattern;
public class JavaApplication2 {
/**
* @param args the command line arguments
*/
public static void main(String[] args) {
String num = "58.5+variable-+98*78/96+a/78.7-3443*12-3";
// Terrifying regex:
// (a)|(b)|(c) match a or b or c
// where
// (a) is one or more digits optionally followed by a decimal point
// followed by one or more digits: (\d+(\.\d+)?)
// (b) is one of the set + * / - occurring once: ([+*/-])
// (c) is a sequence of one or more lowercase latin letter: ([a-z]+)
Pattern tokenPattern = Pattern.compile("(\\d+(\\.\\d+)?)|([+*/-])|([a-z]+)");
Matcher tokenMatcher = tokenPattern.matcher(num);
List<String> tokens = new ArrayList<>();
while (!tokenMatcher.hitEnd()) {
if (tokenMatcher.find()) {
tokens.add(tokenMatcher.group());
} else {
// report error
break;
}
}
System.out.println(tokens);
}
}
Sample output:
[58.5, +, variable, -, +, 98, *, 78, /, 96, +, a, /, 78.7, -, 3443, *, 12, -, 3]
git log --reflog
saved me! I lost mine while merging HEAD and could not find my lates commit! Not showing in source tree but git log --reflog
show all my local commits before
I think that since return validateView();
will return a value (to the click event?), your second call ShowDiv1();
will not get called.
You can always wrap multiple function calls in another function, i.e.
<asp:LinkButton OnClientClick="return display();"> function display() { if(validateView() && ShowDiv1()) return true; }
You also might try:
<asp:LinkButton OnClientClick="return (validateView() && ShowDiv1());">
Though I have no idea if that would throw an exception.
Python lists were not made to operate on the beginning of the list and are very ineffective at this operation.
While you can write
mylist = [1, 2 ,3 ,4]
mylist.pop(0)
It's very inefficient.
If you only want to delete items from your list, you can do this with del
:
del mylist[:n]
Which is also really fast:
In [34]: %%timeit
help=range(10000)
while help:
del help[:1000]
....:
10000 loops, best of 3: 161 µs per loop
If you need to obtain elements from the beginning of the list, you should use collections.deque
by Raymond Hettinger and its popleft()
method.
from collections import deque
deque(['f', 'g', 'h', 'i', 'j'])
>>> d.pop() # return and remove the rightmost item
'j'
>>> d.popleft() # return and remove the leftmost item
'f'
A comparison:
In [30]: %%timeit
....: help=range(10000)
....: while help:
....: help.pop(0)
....:
100 loops, best of 3: 17.9 ms per loop
In [33]: %%timeit
help=deque(range(10000))
while help:
help.popleft()
....:
1000 loops, best of 3: 812 µs per loop
You can work on strings instead of numbers to achieve this. You can do it like this
(111 + '').split('')
This will return an array of strings ['1','1','1']
on which you can iterate upon and call parseInt
method.
parseInt('1') === 1
If you want the sum of individual digits, you can use the reduce function (implemented from Javascript 1.8) like this
(111 + '').split('').reduce(function(previousValue, currentValue){
return parseInt(previousValue,10) + parseInt(currentValue,10);
})
If you want to use the back button, check this out. https://stackoverflow.com/questions/116446/what-is-the-best-back-button-jquery-plugin
Use document.location.href to change the page location, place it in the function on a successful ajax run.
select * from table order by length(column);
Documentation on the length() function, as well as all the other string functions, is available here.
My situation was a little complicated. I had to do three steps since I was using a .dll in the resources directory, for JNI code. My files were
S:\Accessibility\tools\src\main\resources\dlls\HelloWorld.dll
S:\Accessibility\tools\src\test\java\com\accessibility\HelloWorld.class
My code contained the following line
System.load(HelloWorld.class.getResource("/dlls/HelloWorld.dll").getPath());
First, I had to move to the classpath directory
cd /D "S:\Accessibility\tools\src\test\java"
Next, I had to change the classpath to point to the current directory so that my class would be loaded and I had to change the classpath to point to he resources directory so my dll would be loaded.
set classpath=%classpath%;.;..\..\..\src\main\resources;
Then, I had to run java using the classname.
java com.accessibility.HelloWorld
Here's the method I use:
public void AddOrUpdateAppConnectionStrings(string key, string value)
{
try
{
var configFile = ConfigurationManager.OpenExeConfiguration(ConfigurationUserLevel.None);
var settings = configFile.ConnectionStrings.ConnectionStrings;
if (settings[key] == null)
{
settings.Add(new ConnectionStringSettings(key,value));
}
else
{
settings[key].ConnectionString = value;
}
configFile.Save(ConfigurationSaveMode.Modified);
ConfigurationManager.RefreshSection(configFile.ConnectionStrings.SectionInformation.Name);
Properties.Settings.Default.Reload();
}
catch (ConfigurationErrorsException)
{
Console.WriteLine("Error writing app settings");
}
}
Is there a reason why you can't use the Excel ODBC connection to read and write to Excel? For example, I've used the following code to read from an Excel file row by row like a database:
private DataTable LoadExcelData(string fileName)
{
string Connection = "Provider=Microsoft.ACE.OLEDB.12.0;Data Source=" + fileName + ";Extended Properties=\"Excel 12.0;HDR=Yes;IMEX=1\";";
OleDbConnection con = new OleDbConnection(Connection);
OleDbCommand command = new OleDbCommand();
DataTable dt = new DataTable(); OleDbDataAdapter myCommand = new OleDbDataAdapter("select * from [Sheet1$] WHERE LastName <> '' ORDER BY LastName, FirstName", con);
myCommand.Fill(dt);
Console.WriteLine(dt.Rows.Count);
return dt;
}
You can write to the Excel "database" the same way. As you can see, you can select the version number to use so that you can downgrade Excel versions for the machine with Excel 2003. Actually, the same is true for using the Interop. You can use the lower version and it should work with Excel 2003 even though you only have the higher version on your development PC.
jython variant based on @pushy's answer, works on windows.
def set_env(newenv):
from java.lang import Class
process_environment = Class.forName("java.lang.ProcessEnvironment")
environment_field = process_environment.getDeclaredField("theEnvironment")
environment_field.setAccessible(True)
env = environment_field.get(None)
env.putAll(newenv)
invariant_environment_field = process_environment.getDeclaredField("theCaseInsensitiveEnvironment");
invariant_environment_field.setAccessible(True)
invevn = invariant_environment_field.get(None)
invevn.putAll(newenv)
Usage:
old_environ = dict(os.environ)
old_environ['EPM_ORACLE_HOME'] = r"E:\Oracle\Middleware\EPMSystem11R1"
set_env(old_environ)
Martijen's answer makes sense, but it was missing something crucial that may seem obvious to others but was hard for me to figure out.
In the version where you use argparse, you need to have this line in the main body.
args = parser.parse_args(args)
Normally when you are using argparse just in a script you just write
args = parser.parse_args()
and parse_args find the arguments from the command line. But in this case the main function does not have access to the command line arguments, so you have to tell argparse what the arguments are.
Here is an example
import argparse
import sys
def x(x_center, y_center):
print "X center:", x_center
print "Y center:", y_center
def main(args):
parser = argparse.ArgumentParser(description="Do something.")
parser.add_argument("-x", "--xcenter", type=float, default= 2, required=False)
parser.add_argument("-y", "--ycenter", type=float, default= 4, required=False)
args = parser.parse_args(args)
x(args.xcenter, args.ycenter)
if __name__ == '__main__':
main(sys.argv[1:])
Assuming you named this mytest.py To run it you can either do any of these from the command line
python ./mytest.py -x 8
python ./mytest.py -x 8 -y 2
python ./mytest.py
which returns respectively
X center: 8.0
Y center: 4
or
X center: 8.0
Y center: 2.0
or
X center: 2
Y center: 4
Or if you want to run from another python script you can do
import mytest
mytest.main(["-x","7","-y","6"])
which returns
X center: 7.0
Y center: 6.0
git rm --cached
will remove it from the commit set ("un-adding" it); that sounds like what you want.
You can define imagePullPolicy: Always
in your deployment file.
$string="1,2,3,4,5";
$array=array_map('intval', explode(',', $string));
$array = implode("','",$array);
$query=mysqli_query($conn, "SELECT name FROM users WHERE id IN ('".$array."')");
NB: the syntax is:
SELECT * FROM table WHERE column IN('value1','value2','value3')
Try this:
listItems = $("#productList").find("li").each(function(){
var product = $(this);
// rest of code.
});
This is explained in Beej's networking guide. shutdown
is a flexible way to block communication in one or both directions. When the second parameter is SHUT_RDWR
, it will block both sending and receiving (like close
). However, close
is the way to actually destroy a socket.
With shutdown
, you will still be able to receive pending data the peer already sent (thanks to Joey Adams for noting this).
Even though I had gcc already installed, I had to run
sudo apt-get install build-essential
to get rid of that error
The optimal block size depends on various factors, including the operating system (and its version), and the various hardware buses and disks involved. Several Unix-like systems (including Linux and at least some flavors of BSD) define the st_blksize
member in the struct stat
that gives what the kernel thinks is the optimal block size:
#include <sys/stat.h>
#include <stdio.h>
int main(void)
{
struct stat stats;
if (!stat("/", &stats))
{
printf("%u\n", stats.st_blksize);
}
}
The best way may be to experiment: copy a gigabyte with various block sizes and time that. (Remember to clear kernel buffer caches before each run: echo 3 > /proc/sys/vm/drop_caches
).
However, as a rule of thumb, I've found that a large enough block size lets dd
do a good job, and the differences between, say, 64 KiB and 1 MiB are minor, compared to 4 KiB versus 64 KiB. (Though, admittedly, it's been a while since I did that. I use a mebibyte by default now, or just let dd
pick the size.)
You need to look into Ajax; Start here this is the best way to stay on the current page and be able to send inputs to php.
<!DOCTYPE html>
<html>
<head>
<script>
function showHint(str)
{
var xmlhttp;
if (str.length==0)
{
document.getElementById("txtHint").innerHTML="";
return;
}
if (window.XMLHttpRequest)
{// code for IE7+, Firefox, Chrome, Opera, Safari
xmlhttp=new XMLHttpRequest();
}
else
{// code for IE6, IE5
xmlhttp=new ActiveXObject("Microsoft.XMLHTTP");
}
xmlhttp.onreadystatechange=function()
{
if (xmlhttp.readyState==4 && xmlhttp.status==200)
{
document.getElementById("txtHint").innerHTML=xmlhttp.responseText;
}
}
xmlhttp.open("GET","gethint.php?q="+str,true);
xmlhttp.send();
}
</script>
</head>
<body>
<h3>Start typing a name in the input field below:</h3>
<form action="">
First name: <input type="text" id="txt1" onkeyup="showHint(this.value)" />
</form>
<p>Suggestions: <span id="txtHint"></span></p>
</body>
</html>
This gets the users input on the textbox and opens the webpage gethint.php?q=ja from here the php script can do anything with $_GET['q'] and echo back to the page James, Jason....etc
BalusC is right. Version 1.0.13 is current, but 1.0.9 appears to have the required bundles:
$ jar tf lib/jfreechart-1.0.9.jar | grep LocalizationBundle.properties org/jfree/chart/LocalizationBundle.properties org/jfree/chart/editor/LocalizationBundle.properties org/jfree/chart/plot/LocalizationBundle.properties
Nice elegant solution with ROW_NUMBER window function (supported by PostgreSQL - see in SQL Fiddle):
SELECT username, ip, time_stamp FROM (
SELECT username, ip, time_stamp,
ROW_NUMBER() OVER (PARTITION BY username ORDER BY time_stamp DESC) rn
FROM Users
) tmp WHERE rn = 1;
You need to precede the lines starting with gcc
and rm
with a hard tab. Commands in make rules are required to start with a tab (unless they follow a semicolon on the same line).
The result should look like this:
PROG = semsearch
all: $(PROG)
%: %.c
gcc -o $@ $< -lpthread
clean:
rm $(PROG)
Note that some editors may be configured to insert a sequence of spaces instead of a hard tab. If there are spaces at the start of these lines you'll also see the "missing separator" error. If you do have problems inserting hard tabs, use the semicolon way:
PROG = semsearch
all: $(PROG)
%: %.c ; gcc -o $@ $< -lpthread
clean: ; rm $(PROG)
To change the font globally for ggplot2 plots.
theme_set(theme_gray(base_size = 20, base_family = 'Font Name' ))
You should use parameters in your query to prevent attacks, like if someone entered '); drop table ArticlesTBL;--'
as one of the values.
string query = "INSERT INTO ArticlesTBL (ArticleTitle, ArticleContent, ArticleType, ArticleImg, ArticleBrief, ArticleDateTime, ArticleAuthor, ArticlePublished, ArticleHomeDisplay, ArticleViews)";
query += " VALUES (@ArticleTitle, @ArticleContent, @ArticleType, @ArticleImg, @ArticleBrief, @ArticleDateTime, @ArticleAuthor, @ArticlePublished, @ArticleHomeDisplay, @ArticleViews)";
SqlCommand myCommand = new SqlCommand(query, myConnection);
myCommand.Parameters.AddWithValue("@ArticleTitle", ArticleTitleTextBox.Text);
myCommand.Parameters.AddWithValue("@ArticleContent", ArticleContentTextBox.Text);
// ... other parameters
myCommand.ExecuteNonQuery();
Add async: false
to your attributes list. This forces the javascript thread to wait until the return value is retrieved before moving on. Obviously, you wouldn't want to do this in every circumstance, but if a value is needed before proceeding, this will do it.
Bootstrap 3 now has Responsive tables out of the box. Hooray! :)
You can check it here: https://getbootstrap.com/docs/3.3/css/#tables-responsive
Add a <div class="table-responsive">
surrounding your table and you should be good to go:
<div class="table-responsive">
<table class="table">
...
</table>
</div>
To make it work on all layouts you can do this:
.table-responsive
{
overflow-x: auto;
}
This happened to me yesterday and in my case was because I was following a PDF manual to develop some module to communicate with an API and while copying the link directly from the manual, for some odd reason, the hyphen
from the copied link was in a different encoding and hence the curl_exec()
was always returning false
because it was unable to communicate with the server.
It took me a couple hours to finally understand the diference in the characters bellow:
https://www.e-example.com/api
https://www.e-example.com/api
Every time I tried to access the link directly from a browser it converted to something likehttps://www.xn--eexample-0m3d.com/api
.
It may seem to you that they are equal but if you check the encoding of the hyphens
here you'll see that the first hyphen
is a unicode characters U+2010 and the other is a U+002D.
Hope this helps someone.
In your expected output, you've got the second last row sum incorrect, it should be 40 according to the data in your tables, but here is the query:
Select ChargeNum, CategoryId, Sum(Hours)
From (
Select ChargeNum, CategoryId, Hours
From KnownHours
Union
Select ChargeNum, 'Unknown' As CategoryId, Hours
From UnknownHours
) As a
Group By ChargeNum, CategoryId
Order By ChargeNum, CategoryId
And here is the output:
ChargeNum CategoryId
---------- ---------- ----------------------
111111 1 40
111111 2 50
111111 Unknown 70
222222 1 40
222222 Unknown 25.5
Simply use Path.GetFileName
Here - Extract folder name from the full path of a folder:
string folderName = Path.GetFileName(@"c:\projects\root\wsdlproj\devlop\beta2\text");//Return "text"
Here is some extra - Extract folder name from the full path of a file:
string folderName = Path.GetFileName(Path.GetDirectoryName(@"c:\projects\root\wsdlproj\devlop\beta2\text\GTA.exe"));//Return "text"
Just go to the \eclipse-java-helios-SR2-win32\eclipse\configuration.settings directory and change or remove org.eclipse.ui.ide.prefs file.
$("#myAudioElement")[0].play();
It doesn't work with $("#myAudioElement").play()
like you would expect. The official reason is that incorporating it into jQuery would add a play()
method to every single element, which would cause unnecessary overhead. So instead you have to refer to it by its position in the array of DOM elements that you're retrieving with $("#myAudioElement")
, aka 0.
This quote is from a bug that was submitted about it, which was closed as "feature/wontfix":
To do that we'd need to add a jQuery method name for each DOM element method name. And of course that method would do nothing for non-media elements so it doesn't seem like it would be worth the extra bytes it would take.
First check the php.ini
file path by phpinfo()
; and then changed PHP.INI
params:
upload_max_filesize = 1000M
memory_limit = 1500M
post_max_size = 1500M
max_execution_time = 30
restarted Apache
set_time_limit(0); // safe_mode is off
ini_set('max_execution_time', 500); //500 seconds
Note: you can also use command to find php.ini
in Linux
locate `php.ini`
This will work fine
public void displayAll(File path){
if(path.isFile()){
System.out.println(path.getName());
}else{
System.out.println(path.getName());
File files[] = path.listFiles();
for(File dirOrFile: files){
displayAll(dirOrFile);
}
}
}
By definition dictionaries are unordered, and therefore cannot be indexed. For that kind of functionality use an ordered dictionary. Python Ordered Dictionary
Instead of [ngIf] you should use *ngIf like this:
<div *ngIf="isAuth" id="sidebar">
SELECT
[User], Activity,
STUFF(
(SELECT DISTINCT ',' + PageURL
FROM TableName
WHERE [User] = a.[User] AND Activity = a.Activity
FOR XML PATH (''))
, 1, 1, '') AS URLList
FROM TableName AS a
GROUP BY [User], Activity
You can find dimension of an image on the page using something like
document.getElementById('someImage').width
file size, however, you will have to use something server-side
It's way too easy. Use System.exit(0);
If this is a submit button, use <input type="image" src="..." ... />
.
http://www.htmlcodetutorial.com/forms/_INPUT_TYPE_IMAGE.html
If you want to specify the image with CSS, you'll have to use type="submit"
.
I had the same issue : behind a corporate proxy with auth at work, I couldn't have pip work, as well as Sublime Text 2 (well, it worked with custom setup of my proxy settings). For pip (and I'll try that on git), I solved it installing cntlm proxy. It was very simple to configure :
server:port
To test that works, just launch a new command line tool, and try :
pip install django --proxy=localhost:3128
That worked for me. Hope this will help you.
Say you have a superclass Fruit and the subclass Banana and you have a method addBananaToBasket()
The method will not accept grapes for example so you want to make sure that you're adding a banana to the basket.
So:
Fruit myFruit = new Banana();
((Banana)myFruit).addBananaToBasket();
? This is called casting
states = "Alaska Alabama Arkansas American Samoa Arizona California Colorado"
states_list = states.split (' ')
Use del
.
Example:
>>> text = 'lipsum'
>>> l = list(text)
>>> del l[3:]
>>> ''.join(l)
'sum'
Adding dependencies didn't fix the issue at my end.
The issue was happening at my end because of "additional" fields that are part of the "@Entity" class and don't exist in the database.
I removed the additional fields from the @Entity class and it worked.
I'm using firebird First of all, create a one column table named "NoTable" like this
CREATE TABLE NOTABLE
(
NOCOLUMN INTEGER
);
INSERT INTO NOTABLE VALUES (0); -- You can put any value
now you can write this
select 'hello world' as name
from notable
you can add any column you want to be shown
Mac Users please execute the below command from terminal to disable the certificate warning.
/Applications/Google\ Chrome.app/Contents/MacOS/Google\ Chrome --ignore-certificate-errors --ignore-urlfetcher-cert-requests &> /dev/null
Note that this will also have Google Chrome mark all HTTPS sites as insecure in the URL bar.
The browser is still submitting the form after your code runs.
Add return false;
to the handler to prevent that.
As previous answers didn't work well (it was good, but not enough) for me on a 14.04 Ubuntu Server, I mention these recommendations (this is a quote).
Edit: note that as @jason-faust mentioned it in the comments, on 14.04, the authbind
package that ships with it does support IPv6 now, so the prefer IPv4 thing isn't needed any longer.
1) Install authbind
2) Make port 80 available to authbind (you need to be root):
touch /etc/authbind/byport/80
chmod 500 /etc/authbind/byport/80
chown tomcat7 /etc/authbind/byport/80
3) Make IPv4 the default (authbind does not currently support IPv6).
To do so, create the file TOMCAT/bin/setenv.sh with the following content:
CATALINA_OPTS="-Djava.net.preferIPv4Stack=true"
4) Change /usr/share/tomcat7/bin/startup.sh
exec authbind --deep "$PRGDIR"/"$EXECUTABLE" start "$@"
# OLD: exec "$PRGDIR"/"$EXECUTABLE" start "$@"
If you already got a setenv.sh
file in /usr/share/tomcat7/bin
with CATALINA_OPTS
, you have to use :
export CATALINA_OPTS="$CATALINA_OPTS -Djava.net.preferIPv4Stack=true"
Now you can change the port to 80
as told in other answers.
Getting the address of an arbitrary object in .NET is not possible, but can be done if you change the source code and use mono. See instructions here: Get Memory Address of .NET Object (C#)
Have you tried using the "auto-fill" in Excel?
If you have an entire column of items you put the formula in the first cell, make sure you get the result you desire and then you can do the copy/paste, or use auto fill which is an option that sits on the bottom right corner of the cell.
You go to that corner in the cell and once your cursor changes to a "+", you can double-click on it and it should populate all the way down to the last entry (as long as there are no populated cells, that is).
So you have committed your local changes to your local repository. Then in order to get remote changes to your local repository without making changes to your local files, you can use git fetch
. Actually git pull
is a two step operation: a non-destructive git fetch
followed by a git merge
. See What is the difference between 'git pull' and 'git fetch'? for more discussion.
Detailed example:
Suppose your repository is like this (you've made changes test2
:
* ed0bcb2 - (HEAD, master) test2
* 4942854 - (origin/master, origin/HEAD) first
And the origin
repository is like this (someone else has committed test1
):
* 5437ca5 - (HEAD, master) test1
* 4942854 - first
At this point of time, git will complain and ask you to pull first if you try to push your test2
to remote repository. If you want to see what test1 is without modifying your local repository, run this:
$ git fetch
Your result local repository would be like this:
* ed0bcb2 - (HEAD, master) test2
| * 5437ca5 - (origin/master, origin/HEAD) test1
|/
* 4942854 - first
Now you have the remote changes in another branch, and you keep your local files intact.
Then what's next? You can do a git merge
, which will be the same effect as git pull
(when combined with the previous git fetch
), or, as I would prefer, do a git rebase origin/master
to apply your change on top of origin/master
, which gives you a cleaner history.
grep -r --include=*.{cc,h} "hello" .
This reads: search recursively (in all sub directories also) for all .cc OR .h files that contain "hello" at this .
(current) directory
Presumably you have it in a variable and are using JSON.parse(data);
. In which case, use:
JSON.parse(data.replace(/"/g,'"'));
You might want to fix your JSON-writing script though, because "
is not valid in a JSON object.
Here is a slightly simpler version that I found. It reads the entire file in one go and only requires a single using
directive.
byte[] ComputeHash(string filePath)
{
using (var md5 = MD5.Create())
{
return md5.ComputeHash(File.ReadAllBytes(filePath));
}
}
FFTW is the 'fastest fourier transform in the west', and has some Java wrappers:
Hope that helps!
Sometimes this has to do with configuration changes. When we upgraded from Tomncat 6.0.14 to 6.0.26, we had seen something similar. here is the solution http://www.skill-guru.com/blog/2010/08/22/tomcat-6-0-26-shutdown-reports-a-web-application-created-a-threadlocal-threadlocal-has-been-forcibly-removed/
On a mac you have to set keybinding yourself. Simply go to
Sublime --> Preference --> Key Binding - User
and input the following:
{ "keys": ["shift+command+m"], "command": "goto_definition" }
This will enable keybinding of Shift + Command + M
to enable goto definition. You can set the keybinding to anything you would like of course.
There are several ways to exit Vim and have everything the same when you return. There is very good documentation within Vim itself explaining the various ways this can be done. You can use the following command within vim to access the relevant help page: :help usr_21
To give you a brief summary, here are the different methods of quitting and returning with your session intact:
Suspend and resume - You don't actually quit Vim with this; you simply hide your session in the background until you need it. If you reset your computer or issue a kill command to Vim, you will lose your session. This is good for when you want to switch to another task temporarily, but if this is the case, then you might want to look into using the GNU Screen utility instead.
Sessions - This is the true way of saving your session between instances of Vim. Even if you truly quit Vim, your session will be there for you when you return. This is probably what you are looking for.
Thanks all, I tried the few of the options given, but those seems not to work for the latest android releases, so adding the modified steps which work for the latest android releases. these are based on few of the answers above but with modifications & the solution is based on the use of File Provider :
Step:1
Add Following code in Manifest File:
<provider
android:name="androidx.core.content.FileProvider"
android:authorities="${applicationId}"
android:exported="false"
android:grantUriPermissions="true">
<meta-data
android:name="android.support.FILE_PROVIDER_PATHS"
android:resource="@xml/file_provider_paths" />
</provider>
step:2 Create an XML File in res > xml
Create file_provider_paths file inside xml.
Note that this is the file which we include in the android:resource in the previous step.
Write following codes inside the file_provider_paths:
<?xml version="1.0" encoding="utf-8"?>
<paths>
<cache-path name="cache" path="/" />
<files-path name="files" path="/" />
</paths>
Step:3
After that go to your button Click:
Button.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
Bitmap bit = BitmapFactory.decodeResource(context.getResources(), R.drawable.filename);
File filesDir = context.getApplicationContext().getFilesDir();
File imageFile = new File(filesDir, "birds.png");
OutputStream os;
try {
os = new FileOutputStream(imageFile);
bit.compress(Bitmap.CompressFormat.PNG, 100, os);
os.flush();
os.close();
} catch (Exception e) {
Log.e(getClass().getSimpleName(), "Error writing bitmap", e);
}
Intent intent = new Intent();
intent.setAction(Intent.ACTION_SEND);
intent.setFlags(Intent.FLAG_GRANT_READ_URI_PERMISSION);
Uri imageUri = FileProvider.getUriForFile(context, BuildConfig.APPLICATION_ID, imageFile);
intent.putExtra(Intent.EXTRA_STREAM, imageUri);
intent.setType("image/*");
context.startActivity(intent);
}
});
For More detailed explanation Visit https://droidlytics.wordpress.com/2020/08/04/use-fileprovider-to-share-image-from-recyclerview/
One user control can't be applied to it ownself. So open another winform and the one will appear in the toolbox.
Atomic size is 4096 bytes, max size is 65536 bytes. Sendfile uses 16 pipes each of 4096 bytes size. cmd : ioctl(fd, FIONREAD, &buff_size).
I have done the following steps to get rid of this issue. Login into the MySQL in your machine using (sudo mysql -p -u root) and hit the following queries.
1. CREATE USER 'jack'@'localhost' IDENTIFIED WITH mysql_native_password BY '<<any password>>';
2. GRANT ALL PRIVILEGES ON *.* TO 'jack'@'localhost';
3. SELECT user,plugin,host FROM mysql.user WHERE user = 'root';
+------+-------------+-----------+
| user | plugin | host |
+------+-------------+-----------+
| root | auth_socket | localhost |
+------+-------------+-----------+
4. ALTER USER 'root'@'localhost' IDENTIFIED WITH mysql_native_password BY '<<any password>>';
5. FLUSH PRIVILEGES;
Please try it once if you are still getting the error. I hope this code will help you a lot !!
myList.GroupBy(i => i.id).Select(group => group.First())
For C++, it can generate real float numbers within the range specified by dist
variable
#include <random> //If it doesnt work then use #include <tr1/random>
#include <iostream>
using namespace std;
typedef std::tr1::ranlux64_base_01 Myeng;
typedef std::tr1::normal_distribution<double> Mydist;
int main() {
Myeng eng;
eng.seed((unsigned int) time(NULL)); //initializing generator to January 1, 1970);
Mydist dist(1,10);
dist.reset(); // discard any cached values
for (int i = 0; i < 10; i++)
{
std::cout << "a random value == " << (int)dist(eng) << std::endl;
}
return (0);
}
this syntax :
SELECT *
FROM tbl_directorylisting listing
WHERE (civilite_etudiant IS NULL)
worked for me in Microsoft SQL Server 2008 (SP3)
If you only want to install the latest official JRE from Oracle, you can get it there, install it, and export the new JAVA_HOME in the terminal.
java -version
gives you an error and a popupexport JAVA_HOME="/Library/Internet Plug-Ins/JavaAppletPlugin.plugin/Contents/Home"
java -version
now gives you java version "1.7.0_45"
That's the cleanest way I found to install the latest JRE.
You can add the export JAVA_HOME
line in your .bashrc
to have java
permanently in your Terminal:
echo export JAVA_HOME=\"/Library/Internet Plug-Ins/JavaAppletPlugin.plugin/Contents/Home\" >> ~/.bashrc
Note that with | char, you can get a warning with your IDE, for exemple I get warning with the last version of IntelliJ, So the best solution it's to use this syntax:
th:text="${'static_content - ' + you_variable}"
With IIS's self-signed certificate feature, you cannot set the common name (CN) for the certificate, and therefore cannot create a certificate bound to your choice of subdomain.
One way around the problem is to use makecert.exe, which is bundled with the .Net 2.0 SDK. On my server it's at:
C:\Program Files\Microsoft.Net\SDK\v2.0 64bit\Bin\makecert.exe
You can create a signing authority and store it in the LocalMachine certificates repository as follows (these commands must be run from an Administrator account or within an elevated command prompt):
makecert.exe -n "CN=My Company Development Root CA,O=My Company,
OU=Development,L=Wallkill,S=NY,C=US" -pe -ss Root -sr LocalMachine
-sky exchange -m 120 -a sha1 -len 2048 -r
You can then create a certificate bound to your subdomain and signed by your new authority:
(Note that the the value of the -in parameter must be the same as the CN value used to generate your authority above.)
makecert.exe -n "CN=subdomain.example.com" -pe -ss My -sr LocalMachine
-sky exchange -m 120 -in "My Company Development Root CA" -is Root
-ir LocalMachine -a sha1 -eku 1.3.6.1.5.5.7.3.1
Your certificate should then appear in IIS Manager to be bound to your site as explained in Tom Hall's post.
All kudos for this solution to Mike O'Brien for his excellent blog post at http://www.mikeobrien.net/blog/creating-self-signed-wildcard
After compiling a few answers, I've come up with the following code. What surprised me was that the timer does not get frozen on a PC (Chrome, FF) or Android Chrome - the trigger worked in the background, and the visibility check was the only reliable info.
var timestamp = new Date().getTime();
var timerDelay = 5000;
var processingBuffer = 2000;
var redirect = function(url) {
//window.location = url;
log('ts: ' + timestamp + '; redirecting to: ' + url);
}
var isPageHidden = function() {
var browserSpecificProps = {hidden:1, mozHidden:1, msHidden:1, webkitHidden:1};
for (var p in browserSpecificProps) {
if(typeof document[p] !== "undefined"){
return document[p];
}
}
return false; // actually inconclusive, assuming not
}
var elapsedMoreTimeThanTimerSet = function(){
var elapsed = new Date().getTime() - timestamp;
log('elapsed: ' + elapsed);
return timerDelay + processingBuffer < elapsed;
}
var redirectToFallbackIfBrowserStillActive = function() {
var elapsedMore = elapsedMoreTimeThanTimerSet();
log('hidden:' + isPageHidden() +'; time: '+ elapsedMore);
if (isPageHidden() || elapsedMore) {
log('not redirecting');
}else{
redirect('appStoreUrl');
}
}
var log = function(msg){
document.getElementById('log').innerHTML += msg + "<br>";
}
setTimeout(redirectToFallbackIfBrowserStillActive, timerDelay);
redirect('nativeApp://');
This gives the value if it exists, and returns an error code ERROR_FILE_NOT_FOUND if the key doesn't exist.
(I can't tell if my link is working or not, but if you just google for "RegQueryValueEx" the first hit is the msdn documentation.)
Agreeing to the Xcode/iOS license requires admin privileges, please re-run as root via sudo
.
A new version of OSX or XCode was installed and Apple wants you to agree to their Terms and Conditions. So just launch Xcode and "Agree" to them.
search
⇒ find something anywhere in the string and return a match object.
match
⇒ find something at the beginning of the string and return a match object.
As an aside, it is always a good practice (and possibly a solution for this type of issue) to delete a large number of rows by using batches:
WHILE EXISTS (SELECT 1
FROM YourTable
WHERE <yourCondition>)
DELETE TOP(10000) FROM YourTable
WHERE <yourCondition>
If you're using overlapped (i.e. asynchronous) I/O with completion routines or completion ports, you will be notified immediately (assuming you have an outstanding read) when the client side closes the connection.
Yes, they're in the same "local scope", and actually code like this is common in Python:
if condition:
x = 'something'
else:
x = 'something else'
use(x)
Note that x
isn't declared or initialized before the condition, like it would be in C or Java, for example.
In other words, Python does not have block-level scopes. Be careful, though, with examples such as
if False:
x = 3
print(x)
which would clearly raise a NameError
exception.
I could not find a prohibition in writing, but by convention, the Windows hosts file closely follows the UNIX hosts file, and you cannot put wildcard hostname references into that file.
If you read the man page, it says:
DESCRIPTION
The hosts file contains information regarding the known hosts on the net-
work. For each host a single line should be present with the following
information:
Internet address
Official host name
Aliases
Although it does say,
Host names may contain any printable character other than a field delim-
iter, newline, or comment character.
that is not true from a practical level.
Basically, the code that looks at the /etc/hosts file does not support a wildcard entry.
The workaround is to create all the entries in advance, maybe use a script to put a couple hundred entries at once.
Not sure why this isn't implemented directly in R, but this answer is essentially the same as Andrii's and Wordsforthewise, I just turned into a function for the sake of convenience if somebody uses it a lot like me.
r2_general <-function(preds,actual){
return(1- sum((preds - actual) ^ 2)/sum((actual - mean(actual))^2))
}
DECLARE @INPUT VARCHAR(5) = '0.12',@INPUT_1 VARCHAR(5)='0.12x';
select CONVERT(float, @INPUT) YOUR_QUERY ,
case when isnumeric(@INPUT_1)=1 THEN CONVERT(float, @INPUT_1) ELSE 0 END AS YOUR_QUERY_ANSWERED
above will return values
however below query wont work
DECLARE @INPUT VARCHAR(5) = '0.12',@INPUT_1 VARCHAR(5)='0.12x';
select CONVERT(float, @INPUT) YOUR_QUERY ,
case when isnumeric(@INPUT_1)=1 THEN CONVERT(float, @INPUT_1) ELSE **@INPUT_1** END AS YOUR_QUERY_ANSWERED
as @INPUT_1 actually has varchar in it.
So your output column must have a varchar in it.
If you do not want to handle separate properties for each possible argument, I suggest you'd use:
<arg line="${args}"/>
You can check if the property is not set using a specific target with an unless
attribute and inside do:
<input message="Type the desired command line arguments:" addProperty="args"/>
Putting it all together gives:
<target name="run" depends="compile, input-runargs" description="run the project">
<!-- You can use exec here, depending on your needs -->
<java classname="Main">
<arg line="${args}"/>
</java>
</target>
<target name="input-runargs" unless="args" description="prompts for command line arguments if necessary">
<input addProperty="args" message="Type the desired command line arguments:"/>
</target>
You can use it as follows:
ant
ant run
ant run -Dargs='--help'
The first two commands will prompt for the command-line arguments, whereas the latter won't.
You need to multi value check. Try using the following code :
<?php
$illstack=array(...............);
$val=array('uk','bn','in');
if(count(array_intersect($illstack,$val))===count($val)){ // all of $val is in $illstack}
?>
This was written quickly, and is neither pretty nor efficient (plus it autoboxes alot, converting between int
and Integer
is annoying!), but it works.
It probably breaks the rules since I'm creating my own objects but hey I'm doing this as a diversion from real work :)
This also assumes that the resultSet/table is completely read into some sort of structure before you start building Nodes, which wouldn't be the best solution if you have hundreds of thousands of rows.
public class Node {
private Node parent = null;
private List<Node> children;
private String name;
private int id = -1;
public Node(Node parent, int id, String name) {
this.parent = parent;
this.children = new ArrayList<Node>();
this.name = name;
this.id = id;
}
public int getId() {
return this.id;
}
public String getName() {
return this.name;
}
public void addChild(Node child) {
children.add(child);
}
public List<Node> getChildren() {
return children;
}
public boolean isRoot() {
return (this.parent == null);
}
@Override
public String toString() {
return "id=" + id + ", name=" + name + ", parent=" + parent;
}
}
public class NodeBuilder {
public static Node build(List<Map<String, String>> input) {
// maps id of a node to it's Node object
Map<Integer, Node> nodeMap = new HashMap<Integer, Node>();
// maps id of a node to the id of it's parent
Map<Integer, Integer> childParentMap = new HashMap<Integer, Integer>();
// create special 'root' Node with id=0
Node root = new Node(null, 0, "root");
nodeMap.put(root.getId(), root);
// iterate thru the input
for (Map<String, String> map : input) {
// expect each Map to have keys for "id", "name", "parent" ... a
// real implementation would read from a SQL object or resultset
int id = Integer.parseInt(map.get("id"));
String name = map.get("name");
int parent = Integer.parseInt(map.get("parent"));
Node node = new Node(null, id, name);
nodeMap.put(id, node);
childParentMap.put(id, parent);
}
// now that each Node is created, setup the child-parent relationships
for (Map.Entry<Integer, Integer> entry : childParentMap.entrySet()) {
int nodeId = entry.getKey();
int parentId = entry.getValue();
Node child = nodeMap.get(nodeId);
Node parent = nodeMap.get(parentId);
parent.addChild(child);
}
return root;
}
}
public class NodePrinter {
static void printRootNode(Node root) {
printNodes(root, 0);
}
static void printNodes(Node node, int indentLevel) {
printNode(node, indentLevel);
// recurse
for (Node child : node.getChildren()) {
printNodes(child, indentLevel + 1);
}
}
static void printNode(Node node, int indentLevel) {
StringBuilder sb = new StringBuilder();
for (int i = 0; i < indentLevel; i++) {
sb.append("\t");
}
sb.append(node);
System.out.println(sb.toString());
}
public static void main(String[] args) {
// setup dummy data
List<Map<String, String>> resultSet = new ArrayList<Map<String, String>>();
resultSet.add(newMap("1", "Node 1", "0"));
resultSet.add(newMap("2", "Node 1.1", "1"));
resultSet.add(newMap("3", "Node 2", "0"));
resultSet.add(newMap("4", "Node 1.1.1", "2"));
resultSet.add(newMap("5", "Node 2.1", "3"));
resultSet.add(newMap("6", "Node 1.2", "1"));
Node root = NodeBuilder.build(resultSet);
printRootNode(root);
}
//convenience method for creating our dummy data
private static Map<String, String> newMap(String id, String name, String parentId) {
Map<String, String> row = new HashMap<String, String>();
row.put("id", id);
row.put("name", name);
row.put("parent", parentId);
return row;
}
}
I saw in at least one other place that people don't realize Date-Time
takes in times as well, so I figured I'd share it here since it's really short to do so:
Get-Date # Following the OP's example, let's say it's Friday, March 12, 2010 9:00:00 AM
(Get-Date '22:00').AddDays(-1) # Thursday, March 11, 2010 10:00:00 PM
It's also the shortest way to strip time information and still use other parameters of Get-Date
. For instance you can get seconds since 1970 this way (Unix timestamp):
Get-Date '0:00' -u '%s' # 1268352000
Or you can get an ISO 8601 timestamp:
Get-Date '0:00' -f 's' # 2010-03-12T00:00:00
Then again if you reverse the operands, it gives you a little more freedom with formatting with any date object:
'The sortable timestamp: {0:s}Z{1}Vs measly human format: {0:D}' -f (Get-Date '0:00'), "`r`n"
# The sortable timestamp: 2010-03-12T00:00:00Z
# Vs measly human format: Friday, March 12, 2010
However if you wanted to both format a Unix timestamp (via -u
aka -UFormat
), you'll need to do it separately. Here's an example of that:
'ISO 8601: {0:s}Z{1}Unix: {2}' -f (Get-Date '0:00'), "`r`n", (Get-Date '0:00' -u '%s')
# ISO 8601: 2010-03-12T00:00:00Z
# Unix: 1268352000
Hope this helps!
If you want to go beyond binary evaluation and keep your CSS out of your controller you can implement a simple filter that evaluates the input against a map object:
angular.module('myApp.filters, [])
.filter('switch', function () {
return function (input, map) {
return map[input] || '';
};
});
This allows you to write your markup like this:
<div ng-class="muppets.star|switch:{'Kermit':'green', 'Miss Piggy': 'pink', 'Animal': 'loud'}">
...
</div>
Below is the exact code you need to make your sheet look exactly as it is in the attached PDF:
try
{
Excel.Application application;
Excel.Workbook workBook;
Excel.Worksheet workSheet;
object misValue = System.Reflection.Missing.Value;
application = new Excel.ApplicationClass();
workBook = application.Workbooks.Add(misValue);
workSheet = (Excel.Worksheet)workBook.Worksheets.get_Item(1);
int i = 1;
workSheet.Cells[i, 2] = "MSS Close Sheet";
WorkSheet.Cells[i, 2].Style.Font.Bold = true;
i++;
workSheet.Cells[i, 2] = "MSS - " + dpsNoTextBox.Text;
WorkSheet.Cells[i, 2].Style.Font.Bold = true;
i++;
workSheet.Cells[i, 2] = customerNameTextBox.Text;
i++;
workSheet.Cells[i, 2] = "Opening Date : ";
workSheet.Cells[i, 3] = openingDateTextBox.Value.ToShortDateString();
i++;
workSheet.Cells[i, 2] = "Closing Date : ";
workSheet.Cells[i, 3] = closingDateTextBox.Value.ToShortDateString();
i++;
i++;
i++;
workSheet.Cells[i, 1] = "SL. No";
workSheet.Cells[i, 2] = "Month";
workSheet.Cells[i, 3] = "Amount Deposited";
workSheet.Cells[i, 4] = "Fine";
workSheet.Cells[i, 5] = "Cumulative Total";
workSheet.Cells[i, 6] = "Profit + Cumulative Total";
workSheet.Cells[i, 7] = "Profit @ " + profitRateComboBox.Text;
WorkSheet.Cells[i, 1].EntireRow.Font.Bold = true;
i++;
/////////////////////////////////////////////////////////
foreach (RecurringDeposit rd in RecurringDepositList)
{
workSheet.Cells[i, 1] = rd.SN.ToString();
workSheet.Cells[i, 2] = rd.MonthYear;
workSheet.Cells[i, 3] = rd.InstallmentSize.ToString();
workSheet.Cells[i, 4] = "";
workSheet.Cells[i, 5] = rd.CumulativeTotal.ToString();
workSheet.Cells[i, 6] = rd.ProfitCumulative.ToString();
workSheet.Cells[i, 7] = rd.Profit.ToString();
i++;
}
//////////////////////////////////////////////////////
////////////////////////////////////////////////////////
workSheet.Cells[i, 2] = "Total (" + RecurringDepositList.Count + " months installment)";
WorkSheet.Cells[i, 2].Style.Font.Bold = true;
workSheet.Cells[i, 3] = totalAmountDepositedTextBox.Value.ToString("0.00");
i++;
workSheet.Cells[i, 2] = "a) Total Amount Deposited";
workSheet.Cells[i, 3] = totalAmountDepositedTextBox.Value.ToString("0.00");
i++;
workSheet.Cells[i, 2] = "b) Fine";
workSheet.Cells[i, 3] = "";
i++;
workSheet.Cells[i, 2] = "c) Total Pft Paid";
workSheet.Cells[i, 3] = totalProfitPaidTextBox.Value.ToString("0.00");
i++;
workSheet.Cells[i, 2] = "Sub Total";
WorkSheet.Cells[i, 2].Style.Font.Bold = true;
workSheet.Cells[i, 3] = (totalAmountDepositedTextBox.Value + totalProfitPaidTextBox.Value).ToString("0.00");
i++;
workSheet.Cells[i, 2] = "Deduction";
WorkSheet.Cells[i, 2].Style.Font.Bold = true;
i++;
workSheet.Cells[i, 2] = "a) Excise Duty";
workSheet.Cells[i, 3] = "0";
i++;
workSheet.Cells[i, 2] = "b) Income Tax on Pft. @ " + incomeTaxPercentageTextBox.Text;
workSheet.Cells[i, 3] = "0";
i++;
workSheet.Cells[i, 2] = "c) Account Closing Charge ";
workSheet.Cells[i, 3] = closingChargeCommaNumberTextBox.Value.ToString("0.00");
i++;
workSheet.Cells[i, 2] = "d) Outstanding on BAIM(FO) ";
workSheet.Cells[i, 3] = baimFOLowerTextBox.Value.ToString("0.00");
i++;
workSheet.Cells[i, 2] = "Total Deduction ";
WorkSheet.Cells[i, 2].Style.Font.Bold = true;
workSheet.Cells[i, 3] = (incomeTaxDeductionTextBox.Value + closingChargeCommaNumberTextBox.Value + baimFOTextBox.Value).ToString("0.00");
i++;
workSheet.Cells[i, 2] = "Client Paid ";
WorkSheet.Cells[i, 2].Style.Font.Bold = true;
workSheet.Cells[i, 3] = customerPayableNumberTextBox.Value.ToString("0.00");
i++;
workSheet.Cells[i, 2] = "e) Current Balance ";
workSheet.Cells[i, 3] = currentBalanceCommaNumberTextBox.Value.ToString("0.00");
workSheet.Cells[i, 5] = "Exp. Pft paid on MSS A/C(PL67054)";
workSheet.Cells[i, 6] = plTextBox.Value.ToString("0.00");
i++;
workSheet.Cells[i, 2] = "e) Total Paid ";
workSheet.Cells[i, 3] = customerPayableNumberTextBox.Value.ToString("0.00");
workSheet.Cells[i, 5] = "IT on Pft (BDT16216)";
workSheet.Cells[i, 6] = incomeTaxDeductionTextBox.Value.ToString("0.00");
i++;
workSheet.Cells[i, 2] = "Difference";
WorkSheet.Cells[i, 2].Style.Font.Bold = true;
workSheet.Cells[i, 3] = (currentBalanceCommaNumberTextBox.Value - customerPayableNumberTextBox.Value).ToString("0.00");
workSheet.Cells[i, 5] = "Account Closing Charge";
workSheet.Cells[i, 6] = closingChargeCommaNumberTextBox.Value;
i++;
///////////////////////////////////////////////////////////////
workBook.SaveAs("D:\\" + dpsNoTextBox.Text.Trim() + "-" + customerNameTextBox.Text.Trim() + ".xls", Excel.XlFileFormat.xlWorkbookNormal, misValue, misValue, misValue, misValue, Excel.XlSaveAsAccessMode.xlExclusive, misValue, misValue, misValue, misValue, misValue);
workBook.Close(true, misValue, misValue);
application.Quit();
releaseObject(workSheet);
releaseObject(workBook);
releaseObject(application);
The pythonic way of doing this is using subprocess.Popen
subprocess.Popen
takes a list where the first element is the command to be run followed by any command line arguments.
As an example:
import subprocess
args = ['echo', 'Hello!']
subprocess.Popen(args) // same as running `echo Hello!` on cmd line
args2 = ['echo', '-v', '"Hello Again"']
subprocess.Popen(args2) // same as running 'echo -v "Hello Again!"` on cmd line