The easiest way is to use JarURLConnection class :
String className = getClass().getSimpleName() + ".class";
String classPath = getClass().getResource(className).toString();
if (!classPath.startsWith("jar")) {
return DEFAULT_PROPERTY_VALUE;
}
URL url = new URL(classPath);
JarURLConnection jarConnection = (JarURLConnection) url.openConnection();
Manifest manifest = jarConnection.getManifest();
Attributes attributes = manifest.getMainAttributes();
return attributes.getValue(PROPERTY_NAME);
Because in some cases ...class.getProtectionDomain().getCodeSource().getLocation();
gives path with vfs:/
, so this should be handled additionally.
The content of the Manifest file in a JAR file created with version 1.0 of the Java Development Kit is the following.
Manifest-Version: 1.0
All the entries are as name-value pairs. The name of a header is separated from its value by a colon. The default manifest shows that it conforms to version 1.0 of the manifest specification. The manifest can also contain information about the other files that are packaged in the archive. Exactly what file information is recorded in the manifest will depend on the intended use for the JAR file. The default manifest file makes no assumptions about what information it should record about other files, so its single line contains data only about itself. Special-Purpose Manifest Headers
Depending on the intended role of the JAR file, the default manifest may have to be modified. If the JAR file is created only for the purpose of archival, then the MANIFEST.MF file is of no purpose. Most uses of JAR files go beyond simple archiving and compression and require special information to be in the manifest file. Summarized below are brief descriptions of the headers that are required for some special-purpose JAR-file functions
Applications Bundled as JAR Files: If an application is bundled in a JAR file, the Java Virtual Machine needs to be told what the entry point to the application is. An entry point is any class with a public static void main(String[] args) method. This information is provided in the Main-Class header, which has the general form:
Main-Class: classname
The value classname is to be replaced with the application's entry point.
Download Extensions: Download extensions are JAR files that are referenced by the manifest files of other JAR files. In a typical situation, an applet will be bundled in a JAR file whose manifest references a JAR file (or several JAR files) that will serve as an extension for the purposes of that applet. Extensions may reference each other in the same way. Download extensions are specified in the Class-Path header field in the manifest file of an applet, application, or another extension. A Class-Path header might look like this, for example:
Class-Path: servlet.jar infobus.jar acme/beans.jar
With this header, the classes in the files servlet.jar, infobus.jar, and acme/beans.jar will serve as extensions for purposes of the applet or application. The URLs in the Class-Path header are given relative to the URL of the JAR file of the applet or application.
Package Sealing: A package within a JAR file can be optionally sealed, which means that all classes defined in that package must be archived in the same JAR file. A package might be sealed to ensure version consistency among the classes in your software or as a security measure. To seal a package, a Name header needs to be added for the package, followed by a Sealed header, similar to this:
Name: myCompany/myPackage/
Sealed: true
The Name header's value is the package's relative pathname. Note that it ends with a '/' to distinguish it from a filename. Any headers following a Name header, without any intervening blank lines, apply to the file or package specified in the Name header. In the above example, because the Sealed header occurs after the Name: myCompany/myPackage header, with no blank lines between, the Sealed header will be interpreted as applying (only) to the package myCompany/myPackage.
Package Versioning: The Package Versioning specification defines several manifest headers to hold versioning information. One set of such headers can be assigned to each package. The versioning headers should appear directly beneath the Name header for the package. This example shows all the versioning headers:
Name: java/util/
Specification-Title: "Java Utility Classes"
Specification-Version: "1.2"
Specification-Vendor: "Sun Microsystems, Inc.".
Implementation-Title: "java.util"
Implementation-Version: "build57"
Implementation-Vendor: "Sun Microsystems, Inc."
In .Net 4.0, you can also call String.IsNullOrWhitespace
.
You can execute all the commands returned by the following query :
select 'ALTER TABLE '||substr(c.table_name,1,35)|| ' DISABLE CONSTRAINT '||constraint_name||' ;' from user_constraints c --where c.table_name = 'TABLE_NAME' ;
Twitter bootstrap tables can be styled and well designed. You can style your table just adding some classes on your table and it’ll look nice. You might use it on your data reports, showing information, etc.
You can use :
basic table
Striped rows
Bordered table
Hover rows
Condensed table
Contextual classes
Responsive tables
Striped rows Table :
<table class="table table-striped" width="647">
<thead>
<tr>
<th>#</th>
<th>Name</th>
<th>Address</th>
<th>mail</th>
</tr>
</thead>
<tbody>
<tr>
<td>1</td>
<td>Thomas bell</td>
<td>Brick lane, London</td>
<td>[email protected]</td>
</tr>
<tr>
<td height="29">2</td>
<td>Yan Chapel</td>
<td>Toronto Australia</td>
<td>[email protected]</td>
</tr>
<tr>
<td>3</td>
<td>Pit Sampras</td>
<td>Berlin, Germany</td>
<td>Pit @yahoo.com</td>
</tr>
</tbody>
</table>
Condensed table :
Compacting a table you need to add class class=”table table-condensed” .
<table class="table table-condensed" width="647">
<thead>
<tr>
<th>#</th>
<th>Sample Name</th>
<th>Address</th>
<th>Mail</th>
</tr>
</thead>
<tbody>
<tr>
<td>1</td>
<td>Thomas bell</td>
<td>Brick lane, London</td>
<td>[email protected]</td>
</tr>
<tr>
<td height="29">2</td>
<td>Yan Chapel</td>
<td>Toronto Australia</td>
<td>[email protected]</td>
</tr>
<tr>
<td>3</td>
<td>Pit Sampras</td>
<td>Berlin, Germany</td>
<td>Pit @yahoo.com</td>
</tr>
<tr>
<td></td>
<td colspan="3" align="center"></td>
</tr>
</tbody>
</table>
Ref : http://twitterbootstrap.org/twitter-bootstrap-table-example-tutorial
You should use onclick method because the function run once when the page is loaded and no button will be clicked then
So you have to add an even which run every time the user press any key to add the changes to the div background
So the function should be something like this
htmlelement.onclick() = function(){
//Do the changes
}
So your code has to look something like this :
var box = document.getElementById("box");
var yes = document.getElementById("yes");
var no = document.getElementById("no");
yes.onclick = function(){
box.style.backgroundColor = "red";
}
no.onclick = function(){
box.style.backgroundColor = "green";
}
This is meaning that when #yes button is clicked the color of the div is red and when the #no button is clicked the background is green
Here is a Jsfiddle
Instead of os.path.isfile
, suggested by others, I suggest using os.path.exists
, which checks for anything with that name, not just whether it is a regular file.
Thus:
if not os.path.exists(filename):
file(filename, 'w').close()
Alternatively:
file(filename, 'w+').close()
The latter will create the file if it exists, but not otherwise. It will, however, fail if the file exists, but you don't have permission to write to it. That's why I prefer the first solution.
I also had the same problem and I resolved by adding the reference in one of my projects which didn't had the mentioned reference. If you have 2-3 projects in your solution, then check by adding this reference to the other projects.
Right click on project -> Run As -> Run Configurations..-> Select Arguments tab -> In VM Arguments you can increase your JVM memory allocation. Java HotSpot document will help you to setup your VM Argument HERE
I will not prefer to make any changes into eclipse.ini as minor mistake cause lot of issues. It's easier to play with VM Args
You would need to decompile the apk as Davis suggested, can use tools such as apkTool , then if you need to change the source code you would need other tools to do that.
You would then need to put the apk back together and sign it, if you don't have the original key used to sign the apk this means the new apk will have a different signature.
If the developer employed any obfuscation or other techniques to protect the app then it gets more complicated.
In short its a pretty complex and technical procedure, so if the developer is really just out of reach, its better to wait until he is in reach. And ask for the source code next time.
None of these worked for me. I'm using Mac OS 10.10.5 and Workbench 6.3. What worked for me is Database->Migration Wizard... Flow the steps very carefully
I have a PowerShell script I have to run on a computer so out of date that it doesn't have [String]::IsNullOrWhiteSpace(), so I wrote my own.
function IsNullOrWhitespace($str)
{
if ($str)
{
return ($str -replace " ","" -replace "`t","").Length -eq 0
}
else
{
return $TRUE
}
}
To make the edited value of path persists in the next sessions
cd ~/
touch .bash_profile
open .bash_profile
That will open the .bash_profile in editor, write inside the following after adding what you want to the path separating each value by column.
export PATH=$PATH:/usr/local/git/bin:/usr/local/bin:
Save, exit, restart your terminal and enjoy
mongodb 2.6.8 on windows7 32bits you only need create a folder c:/data/db execute mongod, and execute mongo
Create an initializer for it:
# config/initializers/time_formats.rb
Add something like this to it:
Time::DATE_FORMATS[:custom_datetime] = "%d.%m.%Y"
And then use it the following way:
post.updated_at.to_s(:custom_datetime)
?? Your have to restart rails server for this to work.
Check the documentation for more information: http://api.rubyonrails.org/v5.1/classes/DateTime.html#method-i-to_formatted_s
Truncate can also be Rollbacked here the exapmle
begin Tran
delete from Employee
select * from Employee
Rollback
select * from Employee
See the "Source Test Tools" link on the Software QA Testing and Test Tool Resources page for a list of similar tools.
I've used BoundsChecker,DevPartner Studio and Intel V-Tune in the past for profiling. I liked V-Tune the best; you could emulate various Intel chipsets and it would give you hints on how to optimize for that platform.
I solved this issue with commands bellow:
$ sudo apt-get install php7.3-intl
$ sudo /etc/init.d/php7.3-fpm restart
These commands works for me in homestead with php7.3
You can only use absolute path http://grand-shopping.com/<"some folder"> is not an absolute path.
Either you can use a path inside the application which is vurneable or you can use server specific path like in
windows -> C:/Users/puneet verma/Downloads/
linux -> /opt/Downloads/
I was getting the same error with jQuery formvaliadator, but when I removed a console.log inside success: function, it worked.
from
a directory_of_modules
, you can import
a specific_module.py
specific_module.py
, can contain a Class
with some_methods()
or just functions()
specific_module.py
, you can instantiate a Class
or call functions()
Class
, you can execute some_method()
Example:
#!/usr/bin/python3
from directory_of_modules import specific_module
instance = specific_module.DbConnect("username","password")
instance.login()
Excerpts from PEP 8 - Style Guide for Python Code:
Modules should have short and all-lowercase names.
Notice: Underscores can be used in the module name if it improves readability.
A Python module is simply a source file(*.py), which can expose:
Class: names using the "CapWords" convention.
Function: names in lowercase, words separated by underscores.
Global Variables: the conventions are about the same as those for Functions.
By the looks of it, apart from starting another process, there doesn't seem to be any way of handling a StackOverflowException
. Before anyone else asks, I tried using AppDomain
, but that didn't work:
using System;
using System.Collections.Generic;
using System.Linq;
using System.Reflection;
using System.Text;
using System.Threading;
namespace StackOverflowExceptionAppDomainTest
{
class Program
{
static void recrusiveAlgorithm()
{
recrusiveAlgorithm();
}
static void Main(string[] args)
{
if(args.Length>0&&args[0]=="--child")
{
recrusiveAlgorithm();
}
else
{
var domain = AppDomain.CreateDomain("Child domain to test StackOverflowException in.");
domain.ExecuteAssembly(Assembly.GetEntryAssembly().CodeBase, new[] { "--child" });
domain.UnhandledException += (object sender, UnhandledExceptionEventArgs e) =>
{
Console.WriteLine("Detected unhandled exception: " + e.ExceptionObject.ToString());
};
while (true)
{
Console.WriteLine("*");
Thread.Sleep(1000);
}
}
}
}
}
If you do end up using the separate-process solution, however, I would recommend using Process.Exited
and Process.StandardOutput
and handle the errors yourself, to give your users a better experience.
May be this will help some one. I have my proxy setup in python script but keep getting the error mentioned in the question.
Below is the piece of block which will take my username and password as a constant in the beginning.
if (use_proxy):
proxy = req.ProxyHandler({'https': proxy_url})
auth = req.HTTPBasicAuthHandler()
opener = req.build_opener(proxy, auth, req.HTTPHandler)
req.install_opener(opener)
If you are using corporate laptop and if you did not connect to Direct Access or office VPN then the above block will throw error. All you need to do is to connect to your org VPN and then execute your python script.
Thanks
You can use SublimeREPL (you need to have Package Control installed first).
For Swift 3.0+ see the other answers. This is now a legacy answer for Swift 2.x
As answered above, since you are interested in removing the first character the .stringByTrimmingCharactersInSet() instance method will work nicely:
myString.stringByTrimmingCharactersInSet(NSCharacterSet.whitespaceCharacterSet())
You can also make your own character sets to trim the boundaries of your strings by, ex:
myString.stringByTrimmingCharactersInSet(NSCharacterSet(charactersInString: "<>"))
There is also a built in instance method to deal with removing or replacing substrings called stringByReplacingOccurrencesOfString(target: String, replacement: String). It can remove spaces or any other patterns that occur anywhere in your string
You can specify options and ranges, but don't need to:
myString.stringByReplacingOccurrencesOfString(" ", withString: "")
This is an easy way to remove or replace any repeating pattern of characters in your string, and can be chained, although each time through it has to take another pass through your entire string, decreasing efficiency. So you can do this:
myString.stringByReplacingOccurrencesOfString(" ", withString: "").stringByReplacingOccurrencesOfString(",", withString: "")
...but it will take twice as long.
.stringByReplacingOccurrencesOfString() documentation from Apple site
Chaining these String instance methods can sometimes be very convenient for one off conversions, for example if you want to convert a short NSData blob to a hex string without spaces in one line, you can do this with Swift's built in String interpolation and some trimming and replacing:
("\(myNSDataBlob)").stringByTrimmingCharactersInSet(NSCharacterSet(charactersInString: "<>")).stringByReplacingOccurrencesOfString(" ", withString: "")
Just override the onKeyDown method and check if the back button was pressed.
@Override
public boolean onKeyDown(int keyCode, KeyEvent event)
{
if (keyCode == KeyEvent.KEYCODE_BACK)
{
//Back buttons was pressed, do whatever logic you want
}
return false;
}
Packet Capture Android app implements a VPN that logs all network traffic on the Android device. You don't need to setup any VPN/proxy server on your PC. Does not needs root. Supports SSL decryption which tPacketCapture does not. It also includes a good log viewer.
Value validation wouldn't be a responsibility of jQuery. You can use pure JavaScript for this. Two ways that come to my mind are:
/^\d+$/.match(value)
Number(value) == value
I think its good to keep the Label and not to use placeholder as mentioned above. Its good for UX as explain here: https://www.smashingmagazine.com/2018/03/ux-contact-forms-essentials-conversions/
Here example with Label inside Input fields: codepen.io/jdax/pen/mEBJNa
you can use np.int_
:
>>> x = np.array([[1.0, 2.3], [1.3, 2.9]])
>>> x
array([[ 1. , 2.3],
[ 1.3, 2.9]])
>>> np.int_(x)
array([[1, 2],
[1, 2]])
The most important reason of a String being made immutable in Java is Security consideration. Next would be Caching.
I believe other reasons given here, such as efficiency, concurrency, design and string pool follows from the fact that String in made immutable. For eg. String Pool could be created because String was immutable and not the other way around.
Check Gosling interview transcript here
From a strategic point of view, they tend to more often be trouble free. And there are usually things you can do with immutables that you can't do with mutable things, such as cache the result. If you pass a string to a file open method, or if you pass a string to a constructor for a label in a user interface, in some APIs (like in lots of the Windows APIs) you pass in an array of characters. The receiver of that object really has to copy it, because they don't know anything about the storage lifetime of it. And they don't know what's happening to the object, whether it is being changed under their feet.
You end up getting almost forced to replicate the object because you don't know whether or not you get to own it. And one of the nice things about immutable objects is that the answer is, "Yeah, of course you do." Because the question of ownership, who has the right to change it, doesn't exist.
One of the things that forced Strings to be immutable was security. You have a file open method. You pass a String to it. And then it's doing all kind of authentication checks before it gets around to doing the OS call. If you manage to do something that effectively mutated the String, after the security check and before the OS call, then boom, you're in. But Strings are immutable, so that kind of attack doesn't work. That precise example is what really demanded that Strings be immutable
I'm not a Lisp programmer, but I think this will help.
Basically it's a style of programming such that the recursive call is the last thing you do.
Matlab and Scilab languages offer a simpler and more elegant syntax than Python for the question you're asking, so I think the best you can do is to mimic Matlab/Scilab by using the Numpy package in Python. By doing this the solution to your problem is very concise and elegant:
from numpy import *
property_a = array([545., 656., 5.4, 33.])
property_b = array([ 1.2, 1.3, 2.3, 0.3])
good_objects = [True, False, False, True]
good_indices = [0, 3]
property_asel = property_a[good_objects]
property_bsel = property_b[good_indices]
Numpy tries to mimic Matlab/Scilab but it comes at a cost: you need to declare every list with the keyword "array", something which will overload your script (this problem doesn't exist with Matlab/Scilab). Note that this solution is restricted to arrays of number, which is the case in your example.
You can use below code snippet to read line by line, till end of file
line = obj.readline()
while(line != ''):
# Do Something
line = obj.readline()
print("{latitude} {longitude}".format(**geopoint))
I've had a very similar issue using spring-boot-starter-data-redis
. To my implementation there was offered a @Bean
for RedisTemplate
as follows:
@Bean
public RedisTemplate<String, List<RoutePlantCache>> redisTemplate(RedisConnectionFactory connectionFactory) {
final RedisTemplate<String, List<RoutePlantCache>> template = new RedisTemplate<>();
template.setConnectionFactory(connectionFactory);
template.setKeySerializer(new StringRedisSerializer());
template.setValueSerializer(new Jackson2JsonRedisSerializer<>(RoutePlantCache.class));
// Add some specific configuration here. Key serializers, etc.
return template;
}
The fix was to specify an array of RoutePlantCache
as following:
template.setValueSerializer(new Jackson2JsonRedisSerializer<>(RoutePlantCache[].class));
Below the exception I had:
com.fasterxml.jackson.databind.exc.MismatchedInputException: Cannot deserialize instance of `[...].RoutePlantCache` out of START_ARRAY token
at [Source: (byte[])"[{ ... },{ ... [truncated 1478 bytes]; line: 1, column: 1]
at com.fasterxml.jackson.databind.exc.MismatchedInputException.from(MismatchedInputException.java:59) ~[jackson-databind-2.11.4.jar:2.11.4]
at com.fasterxml.jackson.databind.DeserializationContext.reportInputMismatch(DeserializationContext.java:1468) ~[jackson-databind-2.11.4.jar:2.11.4]
at com.fasterxml.jackson.databind.DeserializationContext.handleUnexpectedToken(DeserializationContext.java:1242) ~[jackson-databind-2.11.4.jar:2.11.4]
at com.fasterxml.jackson.databind.DeserializationContext.handleUnexpectedToken(DeserializationContext.java:1190) ~[jackson-databind-2.11.4.jar:2.11.4]
at com.fasterxml.jackson.databind.deser.BeanDeserializer._deserializeFromArray(BeanDeserializer.java:604) ~[jackson-databind-2.11.4.jar:2.11.4]
at com.fasterxml.jackson.databind.deser.BeanDeserializer._deserializeOther(BeanDeserializer.java:190) ~[jackson-databind-2.11.4.jar:2.11.4]
at com.fasterxml.jackson.databind.deser.BeanDeserializer.deserialize(BeanDeserializer.java:166) ~[jackson-databind-2.11.4.jar:2.11.4]
at com.fasterxml.jackson.databind.ObjectMapper._readMapAndClose(ObjectMapper.java:4526) ~[jackson-databind-2.11.4.jar:2.11.4]
at com.fasterxml.jackson.databind.ObjectMapper.readValue(ObjectMapper.java:3572) ~[jackson-databind-2.11.4.jar:2.11.4]
Well, you pretty much gave yourself the answer. In your CSS give the containing element a min-width. If you have to support IE6 you can use the min-width-trick:
#container {
min-width:800px;
width: auto !important;
width:800px;
}
That will effectively give you 800px min-width in IE6 and any up-to-date browsers.
find . -type d -print0 | xargs -0 -n 1 my_command
Short answer: it's closely related to the Content-Security-Policy: upgrade-insecure-requests
response header, indicating that the browser supports it (and in fact prefers it).
It took me 30mins of Googling, but I finally found it buried in the W3 spec.
The confusion comes because the header in the spec was HTTPS: 1
, and this is how Chromium implemented it, but after this broke lots of websites that were poorly coded (particularly WordPress and WooCommerce) the Chromium team apologized:
"I apologize for the breakage; I apparently underestimated the impact based on the feedback during dev and beta."
— Mike West, in Chrome Issue 501842
Their fix was to rename it to Upgrade-Insecure-Requests: 1
, and the spec has since been updated to match.
Anyway, here is the explanation from the W3 spec (as it appeared at the time)...
The
HTTPS
HTTP request header field sends a signal to the server expressing the client’s preference for an encrypted and authenticated response, and that it can successfully handle the upgrade-insecure-requests directive in order to make that preference as seamless as possible to provide....
When a server encounters this preference in an HTTP request’s headers, it SHOULD redirect the user to a potentially secure representation of the resource being requested.
When a server encounters this preference in an HTTPS request’s headers, it SHOULD include a
Strict-Transport-Security
header in the response if the request’s host is HSTS-safe or conditionally HSTS-safe [RFC6797].
here is an example that allows for performing code on each line of the desired areas (pick either from top & bottom of selection, of from selection
Sub doROWSb() 'WORKS for do selected rows SEE FIX ROWS ABOVE (small ver)
Dim E7 As String 'note: workcell E7 shows: BG381
E7 = RANGE("E7") 'see eg below
Dim r As Long 'NOTE: this example has a paste formula(s) down a column(s). WILL REDUCE 10 HOUR DAYS OF PASTING COLUMNS, DOWN TO 3 MINUTES?
Dim c As Long
Dim rCell As RANGE
'Dim LastRow As Long
r = ActiveCell.row
c = ActiveCell.Column 'might not matter if your code affects whole line anyways, still leave as is
Dim FirstRow As Long 'not in use, Delete if only want last row, note: this code already allows for selection as start
Dim LastRow As Long
If 1 Then 'if you are unable to delete rows not needed, just change 2 lines from: If 1, to if 0 (to go from selection last row, to all rows down from selection)
With Selection
'FirstRow = .Rows(1).row 'not used here, Delete if only want last row
LastRow = .Rows(.Rows.Count).row 'find last row in selection
End With
application.CutCopyMode = False 'if not doing any paste op below
Else
LastRow = Cells(Rows.Count, 1).End(xlUp).row 'find last row used in sheet
End If
application.EnableEvents = True 'EVENTS need this?
application.ScreenUpdating = False 'offset-cells(row, col)
'RANGE(E7).Select 'TOP ROW SELECT
RANGE("A1") = vbNullString 'simple macros on-off switch, vb not here: If RANGE("A1").Value > 0 Then
For Each rCell In RANGE(Cells(r, c), Cells(LastRow, c)) 'new
rCell.Select 'make 3 macros for each paste macro below
'your code here:
If 1 Then 'to if 0, if want to paste formulas/formats/all down a column
Selection.EntireRow.Calculate 'calcs all selected rows, even if just selecting 1 cell in each row (might only be doing 1 row aat here, as part of loop)
Else
'dorows() DO ROWS()
'eg's for paste cells down a column, can make 3 separate macros for each: sub alte() altf & altp
Selection.PasteSpecial Paste:=xlPasteFormulas, Operation:=xlNone, SkipBlanks:=False, Transpose:=False 'make sub alte () add thisworkbook: application.OnKey "%{e}", "alte"
'Selection.PasteSpecial Paste:=xlPasteFormats, Operation:=xlNone, SkipBlanks:=False, Transpose:=False 'make sub altf () add thisworkbook: application.OnKey "%{f}", "altf"
'Selection.PasteSpecial Paste:=xlPasteAll, Operation:=xlNone, SkipBlanks:=False, Transpose:=False 'amke sub altp () add thisworkbook: application.OnKey "%{p}", "altp"
End If
Next rCell
'application.CutCopyMode = False 'finished - stop copy mode
'RANGE("A2").Select
goBEEPS (2), (0.25) 'beeps secs
application.EnableEvents = True 'EVENTS
'note: workcell E7 has: SUBSTITUTE(SUBSTITUTE(CELL("address",$BG$369),"$",""),"","")
'other col eg (shows: BG:BG): =SUBSTITUTE(SUBSTITUTE(CELL("address",$BG2),"$",""),ROW(),"")&":"& SUBSTITUTE(SUBSTITUTE(CELL("address",$BG2),"$",""),ROW(),"")
End Sub
'OTHER:
Sub goBEEPSx(b As Long, t As Double) 'beeps secs as: goBEEPS (2), (0.25) OR: goBEEPS(2, 0.25)
Dim dt 'as double 'worked wo as double
Dim x
For b = b To 1 Step -1
Beep
x = Timer
Do
DoEvents
dt = Timer - x
If dt < 0 Then dt = dt + 86400 '86400 no. seconds in a day, in case hit midnight & timer went down to 0
Loop Until dt >= t
Next
End Sub
Please follow the below steps, it should work.
1 - Uninstall current installation completely
Source - official instructions
sudo service mongod stop
Remove Packages
sudo apt-get purge mongodb-org*
Remove the folders
sudo rm -r /var/log/mongodb
sudo rm -r /var/lib/mongodb
2 - Reinstall as described on official site, I will just write down the all steps. enter link description here
Import the public key
sudo apt-key adv --keyserver hkp://keyserver.ubuntu.com:80 --recv 2930ADAE8CAF5059EE73BB4B58712A2291FA4AD5
Create a list file for Ubuntu 16.04
echo "deb [ arch=amd64,arm64 ] https://repo.mongodb.org/apt/ubuntu xenial/mongodb-org/3.6 multiverse" | sudo tee /etc/apt/sources.list.d/mongodb-org-3.6.list
update the list
sudo apt-get update
Install the latest package
sudo apt-get install -y mongodb-org
3 - Now it should work, please try below command
sudo service mongod start
and check the status
mongo
it should appear the mongo shell
You may also try mongoosejs's lean() :
UserModel.find().lean().exec(function (err, users) {
return res.end(JSON.stringify(users));
}
echo '<p class="paragrah"' . $i . '">'
Liviu's answer was extremely helpful for me. Hope this is not bad form but i made a fiddle that may help someone else out in the future.
Two important pieces that are needed are:
$scope.entities = [{
"title": "foo",
"id": 1
}, {
"title": "bar",
"id": 2
}, {
"title": "baz",
"id": 3
}];
$scope.selected = [];
I was able to resolve this using the designer.
I did not have to change my view to use the ISNULL, NULLIF, or COALESCE workarounds. If you update your model from the database, the warnings will re-appear, but will go away if you close and re-open VS. The changes you made in the designer will be preserved and not affected by the refresh.
In C++11, you can use std::any_of
instead.
An example to find if there is any zero in the array:
std::array<int,3> foo = {0,1,-1};
if ( std::any_of(foo.begin(), foo.end(), [](int i){return i==0;}) )
std::cout << "zero found...";
A complete function of the most voted answer:
function remote_file_exists($url)
{
$ch = curl_init($url);
curl_setopt($ch, CURLOPT_NOBODY, 1);
curl_setopt($ch, CURLOPT_FOLLOWLOCATION, 1); # handles 301/2 redirects
curl_exec($ch);
$httpCode = curl_getinfo($ch, CURLINFO_HTTP_CODE);
curl_close($ch);
if( $httpCode == 200 ){return true;}
}
You can use it like this:
if(remote_file_exists($url))
{
//file exists, do something
}
val.ToString("".PadLeft(length, '0'))
If you can create a numbers table, that contains numbers from 1 to the maximum fields to split, you could use a solution like this:
select
tablename.id,
SUBSTRING_INDEX(SUBSTRING_INDEX(tablename.name, ',', numbers.n), ',', -1) name
from
numbers inner join tablename
on CHAR_LENGTH(tablename.name)
-CHAR_LENGTH(REPLACE(tablename.name, ',', ''))>=numbers.n-1
order by
id, n
Please see fiddle here.
If you cannot create a table, then a solution can be this:
select
tablename.id,
SUBSTRING_INDEX(SUBSTRING_INDEX(tablename.name, ',', numbers.n), ',', -1) name
from
(select 1 n union all
select 2 union all select 3 union all
select 4 union all select 5) numbers INNER JOIN tablename
on CHAR_LENGTH(tablename.name)
-CHAR_LENGTH(REPLACE(tablename.name, ',', ''))>=numbers.n-1
order by
id, n
an example fiddle is here.
Associates the specified value with the specified key in this map. If the map previously contained a mapping for the key, the old value is replaced.
check the demo - http://jsfiddle.net/S8g4E/6/
use css -
#container { width: 300px; height: 300px; border:1px solid red; display: table;}
#up { background: green; display: table-row; }
#down { background:pink; display: table-row;}
If you are working on the mongo shell, Please refer this : Answer from Tyler Brock
I wrote the answer if you are using mongodb using node.js
You don't need to convert the id into an ObjectId
. Just use :
db.collection.findById('4ecbe7f9e8c1c9092c000027');
this collection method will automatically convert id into ObjectId.
On the other hand :
db.collection.findOne({"_id":'4ecbe7f9e8c1c9092c000027'})
doesn't work as expected. You've manually convert id into ObjectId
.
That can be done like this :
let id = '58c85d1b7932a14c7a0a320d';
let o_id = new ObjectId(id); // id as a string is passed
db.collection.findOne({"_id":o_id});
I had a similer problem with SqlClient on WCF service. My solution was to put that lines in client app.config
<startup>
<supportedRuntime version="v4.0" sku=".NETFramework,Version=v4.0" />
</startup>
Hopes it helps for someone..
This problem happens when older versions of java still on your system disrupt any new versions installed. To stop this problem you need to first remove all java software using - Control Panel + Remove Programs + then uninstall java. (At this stage, I recommend cleaning out your registry using CCleaner using their Registry option or similar program to ensure a clean sweep then reboot) After rebooting reinstall the most recent version of java and all will be well.
http://www.filehippo.com/download_ccleaner -LINK TO CCLEANER
Try this:
subset(studentdata, Drink=='water')
that should do it.
Here is a more literal answer (parent window as opposed to opener) to the original question that can be used within an iframe, assuming the domain name in the iframe matches that of the parent window:
window.parent.$("#serverMsg")
Another issue that you might run into if you're running RHEL (I ran into it) is that there is a default welcome page configured with the httpd package that will override your settings, even if you put Options Indexes. The file is in /etc/httpd/conf.d/welcome.conf. See the following link for more info: http://wpapi.com/solved-issue-directory-index-forbidden-by-options-directive/
Let's say m = sqrt(n)
then m × m = n
. Now if n
is not a prime then n
can be written as n = a × b
, so m × m = a × b
. Notice that m
is a real number whereas n
, a
and b
are natural numbers.
Now there can be 3 cases:
In all 3 cases, min(a, b) = m
. Hence if we search till m
, we are bound to find at least one factor of n
, which is enough to show that n
is not prime.
I would use a duplex stream instead. like documented here nodejs doc duplex streams
A Transform stream is a Duplex stream where the output is computed in some way from the input.
You can use Bootstrap. Use "position: absolute" to make both buttons over each other. With the JavaScript code you can remove the front button and the back button will be displayed.
button {
position: absolute;
top: 50px;
left: 150px;
width: 150px;
font-size: 120%;
padding: 5px;
background: #B52519;
color: #EAEAEA;
border: none;
margin: 120px;
border-radius: 5px;
display: flex;
align-content: center;
justify-content: center;
transition: all 0.5s;
height: 40px
}
#orderButton:hover {
color: #c8c8c8;
}
_x000D_
<link rel="stylesheet" href="https://maxcdn.bootstrapcdn.com/bootstrap/4.5.2/css/bootstrap.min.css">
<button><div class="spinner-border"></div></button>
<button id="orderButton" onclick="this.style.display= 'none';">Order!</button>
_x000D_
Have you tried driver.implicitly_wait
. It is like a setting for the driver, so you only call it once in the session and it basically tells the driver to wait the given amount of time until each command can be executed.
driver = webdriver.Chrome()
driver.implicitly_wait(10)
So if you set a wait time of 10 seconds it will execute the command as soon as possible, waiting 10 seconds before it gives up. I've used this in similar scroll-down scenarios so I don't see why it wouldn't work in your case. Hope this is helpful.
To be able to fix this answer, I have to add new text. Be sure to use a lower case 'w' in implicitly_wait
.
What I did to get around this was to create a base class for all my activities where I store global data. In the first activity, I saved the context in a variable in my base class like so:
Base Class
public static Context myucontext;
First Activity derived from the Base Class
mycontext = this
Then I use mycontext instead of getApplicationContext when creating dialogs.
AlertDialog alertDialog = new AlertDialog.Builder(mycontext).create();
Choose one you need:
>>> s = "Rajasekar SP def"
>>> s.split(' ')
['Rajasekar', 'SP', '', 'def']
>>> s.split()
['Rajasekar', 'SP', 'def']
>>> s.partition(' ')
('Rajasekar', ' ', 'SP def')
I threw together a small library for this since I do think there are valid use cases for manipulating stylesheets in JS. Reasons being:
public
: it is a access specifier that means it will be accessed by publically.static
: it is access modifier that means when the java program is load then it will create the space in memory automatically.void
: it is a return type i.e it does not return any value.main()
: it is a method or a function name.string args[]
: its a command line argument it is a collection of variables in the string format.Domain Driven Design is a methodology and process prescription for the development of complex systems whose focus is mapping activities, tasks, events, and data within a problem domain into the technology artifacts of a solution domain.
The emphasis of Domain Driven Design is to understand the problem domain in order to create an abstract model of the problem domain which can then be implemented in a particular set of technologies. Domain Driven Design as a methodology provides guidelines for how this model development and technology development can result in a system that meets the needs of the people using it while also being robust in the face of change in the problem domain.
The process side of Domain Driven Design involves the collaboration between domain experts, people who know the problem domain, and the design/architecture experts, people who know the solution domain. The idea is to have a shared model with shared language so that as people from these two different domains with their two different perspectives discuss the solution they are actually discussing a shared knowledge base with shared concepts.
The lack of a shared problem domain understanding between the people who need a particular system and the people who are designing and implementing the system seems to be a core impediment to successful projects. Domain Driven Design is a methodology to address this impediment.
It is more than having an object model. The focus is really about the shared communication and improving collaboration so that the actual needs within the problem domain can be discovered and an appropriate solution created to meet those needs.
Domain-Driven Design: The Good and The Challenging provides a brief overview with this comment:
DDD helps discover the top-level architecture and inform about the mechanics and dynamics of the domain that the software needs to replicate. Concretely, it means that a well done DDD analysis minimizes misunderstandings between domain experts and software architects, and it reduces the subsequent number of expensive requests for change. By splitting the domain complexity in smaller contexts, DDD avoids forcing project architects to design a bloated object model, which is where a lot of time is lost in working out implementation details — in part because the number of entities to deal with often grows beyond the size of conference-room white boards.
Also see this article Domain Driven Design for Services Architecture which provides a short example. The article provides the following thumbnail description of Domain Driven Design.
Domain Driven Design advocates modeling based on the reality of business as relevant to our use cases. As it is now getting older and hype level decreasing, many of us forget that the DDD approach really helps in understanding the problem at hand and design software towards the common understanding of the solution. When building applications, DDD talks about problems as domains and subdomains. It describes independent steps/areas of problems as bounded contexts, emphasizes a common language to talk about these problems, and adds many technical concepts, like entities, value objects and aggregate root rules to support the implementation.
Martin Fowler has written a number of articles in which Domain Driven Design as a methodology is mentioned. For instance this article, BoundedContext, provides an overview of the bounded context concept from Domain Driven Development.
In those younger days we were advised to build a unified model of the entire business, but DDD recognizes that we've learned that "total unification of the domain model for a large system will not be feasible or cost-effective" 1. So instead DDD divides up a large system into Bounded Contexts, each of which can have a unified model - essentially a way of structuring MultipleCanonicalModels.
insert into OPT (email, campaign_id)
select 'mom@coxnet' as email, 100 as campaign_id from dual MINUS
select email, campaign_id from OPT;
If there is already a record with [email protected]
/100
in OPT, the MINUS
will subtract this record from the select 'mom@coxnet' as email, 100 as campaign_id from dual
record and nothing will be inserted. On the other hand, if there is no such record, the MINUS
does not subract anything and the values mom@coxnet
/100
will be inserted.
As p.marino has already pointed out, merge
is probably the better (and more correct) solution for your problem as it is specifically designed to solve your task.
Disable Access Protection in Antivirus,
I faced same issue at last found the below logs from antivirus.
Blocked by Access Protection rule NT AUTHORITY\SYSTEM C:\WINDOWS\SYSTEM32\SVCHOST.EXE C:\PROGRAM FILES (X86)\MCAFEE\VIRUSSCAN ENTERPRISE\MCCONSOL.EXE Common Standard Protection:Prevent termination of McAfee processes Action blocked : Terminate Blocked by port blocking rule C:\USERS\username\APPDATA\LOCAL\PROGRAMS\PYTHON\PYTHON37-32\PYTHON.EXE Anti-virus Standard Protection:Prevent mass mailing worms from sending mail
scanf("%s",str)
scans only until it finds a whitespace character. With the input "A 1"
, it will scan only the first character, hence s2
points at the garbage that happened to be in str
, since that array wasn't initialised.
is just going to look for a div with class="outer inner", is that correct?
No, '.outer .inner'
will look for all elements with the .inner class that also have an element with the .outer class as an ancestor. '.outer.inner'
(no space) would give the results you're thinking of.
'.outer > .inner'
will look for immediate children of an element with the .outer class for elements with the .inner class.
Both '.outer .inner'
and '.outer > .inner'
should work for your example, although the selectors are fundamentally different and you should be wary of this.
Your calls are made recursively which pushes functions on to the stack infinitely that causes max call stack exceeded error due to recursive behavior. Instead try using setTimeout which is a callback.
Also based on your markup your selector is wrong. it should be #advisersDiv
function fadeIn() {
$('#pulseDiv').find('div#advisersDiv').delay(400).addClass("pulse");
setTimeout(fadeOut,1); //<-- Provide any delay here
};
function fadeOut() {
$('#pulseDiv').find('div#advisersDiv').delay(400).removeClass("pulse");
setTimeout(fadeIn,1);//<-- Provide any delay here
};
fadeIn();
Limiting output to two lines of text is possible with CSS, if you set the line-height
and height
of the element, and set overflow:hidden;
:
#someDiv {
line-height: 1.5em;
height: 3em; /* height is 2x line-height, so two lines will display */
overflow: hidden; /* prevents extra lines from being visible */
}
Alternatively, you can use the CSS text-overflow
and white-space
properties to add ellipses, but this only appears to work for a single line.
#someDiv {
line-height: 1.5em;
height: 3em;
overflow: hidden;
white-space: nowrap;
text-overflow: ellipsis;
width: 100%;
}
And a demo:
Achieving both multiple lines of text and ellipses appears to be the realm of javascript.
$('.reset').on('click',function(){
$('#upload input, #upload select').each(
function(index){
var input = $(this);
if(input.attr('type')=='text'){
document.getElementById(input.attr('id')).value = null;
}else if(input.attr('type')=='checkbox'){
document.getElementById(input.attr('id')).checked = false;
}else if(input.attr('type')=='radio'){
document.getElementById(input.attr('id')).checked = false;
}else{
document.getElementById(input.attr('id')).value = '';
//alert('Type: ' + input.attr('type') + ' -Name: ' + input.attr('name') + ' -Value: ' + input.val());
}
}
);
});
The problem with Yossi Shasho's Code is that the page is scrolling to the top every 50 ms. So I have modified that code. Now its working fine on all modern browsers, IE8 and above
var storedHash = window.location.hash;
function changeHashOnLoad() {
window.location.href += "#";
setTimeout("changeHashAgain()", "50");
}
function changeHashAgain() {
window.location.href += "1";
}
function restoreHash() {
if (window.location.hash != storedHash) {
window.location.hash = storedHash;
}
}
if (window.addEventListener) {
window.addEventListener("hashchange", function () {
restoreHash();
}, false);
}
else if (window.attachEvent) {
window.attachEvent("onhashchange", function () {
restoreHash();
});
}
$(window).load(function () { changeHashOnLoad(); });
You haven't at time of writing described what you are going to do with the response or what its content type is. An answer already contains a very basic usage of MSXML2.XMLHTTP
(I recommend the more explicit MSXML2.XMLHTTP.3.0
progID) however you may need to do different things with the response, it may not be text.
The XMLHTTP also has a responseBody
property which is a byte array version of the reponse and there is a responseStream
which is an IStream
wrapper for the response.
Note that in a server-side requirement (e.g., VBScript hosted in ASP) you would use MSXML.ServerXMLHTTP.3.0
or WinHttp.WinHttpRequest.5.1
(which has a near identical interface).
Here is an example of using XmlHttp to fetch a PDF file and store it:-
Dim oXMLHTTP
Dim oStream
Set oXMLHTTP = CreateObject("MSXML2.XMLHTTP.3.0")
oXMLHTTP.Open "GET", "http://someserver/folder/file.pdf", False
oXMLHTTP.Send
If oXMLHTTP.Status = 200 Then
Set oStream = CreateObject("ADODB.Stream")
oStream.Open
oStream.Type = 1
oStream.Write oXMLHTTP.responseBody
oStream.SaveToFile "c:\somefolder\file.pdf"
oStream.Close
End If
This one-liner should work too:
(cd /path/to/your/app && npm start)
Note that the current directory will be changed to /path/to/your/app after executing this command. To preserve the working directory:
(cd /path/to/your/app && npm start && cd -)
I used this solution because a program configuration file I was editing back then didn't support specifying command line arguments.
Error: 10060 Adding a timeout parameter to request solved the issue for me.
import urllib
import urllib2
g = "http://www.google.com/"
read = urllib2.urlopen(g, timeout=20)
A similar error also occurred while I was making a GET request. Again, passing a timeout
parameter solved the 10060 Error.
response = requests.get(param_url, timeout=20)
I believe it's still being used, not sure exactly. There might be even a key combination of it.
As English is written Left to Right, Arabic Right to Left, there are languages in world that are also written top to bottom. In that case a vertical tab might be useful same as the horizontal tab is used for English text.
I tried searching, but couldn't find anything useful yet.
A (partial) practical work-around is to put things into a throw-away function.
Pasting
x = 1
x += 1
print(x)
results in
>>> x = 1
x += 1
print(x)
File "<stdin>", line 1
x += 1
print(x)
^
SyntaxError: multiple statements found while compiling a single statement
>>>
However, pasting
def abc():
x = 1
x += 1
print(x)
works:
>>> def abc():
x = 1
x += 1
print(x)
>>> abc()
2
>>>
Of course, this is OK for a quick one-off, won't work for everything you might want to do, etc. But then, going to ipython
/ jupyter qtconsole
is probably the next simplest option.
Had the same problem. Solved as given below. Use command :
sudo tail -f /var/log/messages|grep -i mysql
to check if SELinux policy is causing the issue. If so, first check if SELinux policy is enabled using command #sestatus
. If it shows enabled, then disable it.
To disable:
# vi /etc/sysconfig/selinux
sestatus
and it should show "disabled"Uninstall and reinstall mysql. It should be working.
Why not use HTML-controlled items such as <input type="reset">
One simple way is using set()
built-in function:
iter = zip([1,2,3],['a','b','c'])
print(len(set(iter)) # set(iter) = {(1, 'a'), (2, 'b'), (3, 'c')}
Out[45]: 3
or
iter = range(1,10)
print(len(set(iter)) # set(iter) = {1, 2, 3, 4, 5, 6, 7, 8, 9}
Out[47]: 9
I was testing a CORS web service on my dev machine and was getting the "Access is denied" error message in only IE. Firefox and Chrome worked fine. It turns out this was caused by my use of localhost in the ajax call! So my browser URL was something like:
http://my_computer.my_domain.local/CORS_Service/test.html
and my ajax call inside of test.html was something like:
//fails in IE
$.ajax({
url: "http://localhost/CORS_Service/api/Controller",
...
});
Everything worked once I changed the ajax call to use my computer IP instead of localhost.
//Works in IE
$.ajax({
url: "http://192.168.0.1/CORS_Service/api/Controller",
...
});
The IE dev tools window "Network" tab also shows CORS Preflight OPTIONS request followed by the XMLHttpRequest GET, which is exactly what I expected to see.
FYI, I am using Windows 7 and had to restart Windows in order for the new JAVA_HOME setting to take effect.
Thank you all for your help. This is my final version, and it works thanks to your combined help ! I am only showing the changes i made, all the rest is taken from Joe Chung's work
public class GoogleSearchResults
{
[DataMember]
public ResponseData responseData { get; set; }
[DataMember]
public string responseDetails { get; set; }
[DataMember]
public int responseStatus { get; set; }
}
and
[DataContract]
public class ResponseData
{
[DataMember]
public List<Results> results { get; set; }
}
In browsers other than Internet Explorer, you can pass parameters to the function together after the delay:
var timeoutID = window.setTimeout(func, delay, [param1, param2, ...]);
So, you can do this:
var timeoutID = window.setTimeout(function (self) {
console.log(self);
}, 500, this);
This is better in terms of performance than a scope lookup (caching this
into a variable outside of the timeout / interval expression), and then creating a closure (by using $.proxy
or Function.prototype.bind
).
The code to make it work in IEs from Webreflection:
/*@cc_on
(function (modifierFn) {
// you have to invoke it as `window`'s property so, `window.setTimeout`
window.setTimeout = modifierFn(window.setTimeout);
window.setInterval = modifierFn(window.setInterval);
})(function (originalTimerFn) {
return function (callback, timeout){
var args = [].slice.call(arguments, 2);
return originalTimerFn(function () {
callback.apply(this, args)
}, timeout);
}
});
@*/
By Changing The DbContext As Below;
protected override void OnModelCreating(DbModelBuilder modelBuilder)
{
base.OnModelCreating(modelBuilder);
modelBuilder.Conventions.Remove<OneToManyCascadeDeleteConvention>();
modelBuilder.Conventions.Remove<ManyToManyCascadeDeleteConvention>();
}
Just adding in OnModelCreating
method call to base.OnModelCreating(modelBuilder); and it becomes fine. I am using EF6.
Special Thanks To #The Senator
The problem is likely to lie with the line:
window.onload = onPageLoad();
By including the brackets you are saying onload
should equal the return value of onPageLoad()
. For example:
/*Example function*/
function onPageLoad()
{
return "science";
}
/*Set on load*/
window.onload = onPageLoad()
If you print out the value of window.onload
to the console it will be:
science
The solution is remove the brackets:
window.onload = onPageLoad;
So, you're using onPageLoad
as a reference to the so-named function.
Finally, in order to get the response value you'll need a readystatechange
listener for your XMLHttpRequest
object, since it's asynchronous:
xmlDoc = xmlhttp.responseXML;
parser = new DOMParser(); // This code is untested as it doesn't run this far.
Here you add the listener:
xmlHttp.onreadystatechange = function() {
if(this.readyState == 4) {
// Do something
}
}
Install tk-devel
(or a similarly-named package) before building Python.
Very Simple:
Adding JS/CSS in the Front End:
function enqueue_related_pages_scripts_and_styles(){
wp_enqueue_style('related-styles', plugins_url('/css/bootstrap.min.css', __FILE__));
wp_enqueue_script('releated-script', plugins_url( '/js/custom.js' , __FILE__ ), array('jquery','jquery-ui-droppable','jquery-ui-draggable', 'jquery-ui-sortable'));
}
add_action('wp_enqueue_scripts','enqueue_related_pages_scripts_and_styles');
Adding JS/CSS in WP Admin Area:
function enqueue_related_pages_scripts_and_styles(){
wp_enqueue_style('related-pages-admin-styles', get_stylesheet_directory_uri() . '/admin-related-pages-styles.css');
wp_enqueue_script('releated-pages-admin-script', plugins_url( '/js/custom.js' , __FILE__ ), array('jquery','jquery-ui-droppable','jquery-ui-draggable', 'jquery-ui-sortable'));
}
add_action('admin_enqueue_scripts','enqueue_related_pages_scripts_and_styles');
For Java 9 :
<build>
<plugins>
<plugin>
<artifactId>maven-compiler-plugin</artifactId>
<version>3.7.0</version>
<configuration>
<source>9</source>
<target>9</target>
</configuration>
</plugin>
</plugins>
</build>
PriceList[0][1][2][3][4][5][6]
This says: go to the 1st item of my collection PriceList
. That thing is a collection; get its 2nd item. That thing is a collection; get its 3rd...
Instead, you want slicing:
PriceList[:7] = [PizzaChange]*7
If you're on Oracle 11g, you may also want to check out dbms_index_utl.
I use this query
SELECT id FROM table_name WHERE field_name REGEXP '"key_name":"([^"])key_word([^"])"';
or
SELECT id FROM table_name WHERE field_name RLIKE '"key_name":"[[:<:]]key_word[[:>:]]"';
The first query I use it to search partial value. The second query I use it to search exact word.
It's a permission problem.
When you run the console app, that app runs with your credentials, e.g. as "you".
The WCF service runs where? In IIS? Most likely, it runs under a separate account, which is not permissioned to query Active Directory.
You can either try to get the WCF impersonation thingie working, so that your own credentials get passed on, or you can specify a username/password on creating your DirectoryEntry:
DirectoryEntry directoryEntry =
new DirectoryEntry("LDAP://someserver.contoso.com/DC=contoso,DC=com",
userName, password);
OK, so it might not be the credentials after all (that's usually the case in over 80% of the cases I see).
What about changing your code a little bit?
DirectorySearcher directorySearcher = new DirectorySearcher(directoryEntry);
directorySearcher.Filter = string.Format("(&(objectClass=user)(objectCategory=user) (sAMAccountName={0}))", username);
directorySearcher.PropertiesToLoad.Add("msRTCSIP-PrimaryUserAddress");
var result = directorySearcher.FindOne();
if(result != null)
{
if(result.Properties["msRTCSIP-PrimaryUserAddress"] != null)
{
var resultValue = result.Properties["msRTCSIP-PrimaryUserAddress"][0];
}
}
My idea is: why not tell the DirectorySearcher
right off the bat what attribute you're interested in? Then you don't need to do another extra step to get the full DirectoryEntry
from the search result (should be faster), and since you told the directory searcher to find that property, it's certainly going to be loaded in the search result - so unless it's null (no value set), then you should be able to retrieve it easily.
Marc
First create a temp table :
Step 1:
create table #tblOm_Temp (
Name varchar(100),
Age Int ,
RollNumber bigint
)
**Step 2: ** Insert Some value in Temp table .
insert into #tblom_temp values('Om Pandey',102,1347)
Step 3: Declare a table Variable to hold temp table data.
declare @tblOm_Variable table(
Name Varchar(100),
Age int,
RollNumber bigint
)
Step 4: select value from temp table and insert into table variable.
insert into @tblOm_Variable select * from #tblom_temp
Finally value is inserted from a temp table to Table variable
Step 5: Can Check inserted value in table variable.
select * from @tblOm_Variable
OK why so complex!
package main
import (
"fmt"
"math/rand"
"time"
)
func main() {
rand.Seed( time.Now().UnixNano())
var bytes int
for i:= 0 ; i < 10 ; i++{
bytes = rand.Intn(6)+1
fmt.Println(bytes)
}
//fmt.Println(time.Now().UnixNano())
}
This is based off the dystroy's code but fitted for my needs.
It's die six (rands ints 1 =< i =< 6
)
func randomInt (min int , max int ) int {
var bytes int
bytes = min + rand.Intn(max)
return int(bytes)
}
The function above is the exactly same thing.
I hope this information was of use.
Use a FrameLayout with two children. The two children will be overlapped. This is recommended in one of the tutorials from Android actually, it's not a hack...
Here is an example where a TextView is displayed on top of an ImageView:
<FrameLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="fill_parent"
android:layout_height="fill_parent">
<ImageView
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:scaleType="center"
android:src="@drawable/golden_gate" />
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginBottom="20dip"
android:layout_gravity="center_horizontal|bottom"
android:padding="12dip"
android:background="#AA000000"
android:textColor="#ffffffff"
android:text="Golden Gate" />
</FrameLayout>
With Python 3 I had this problem:
self.path = 'T:\PythonScripts\Projects\Utilities'
produced this error:
self.path = 'T:\PythonScripts\Projects\Utilities'
^
SyntaxError: (unicode error) 'unicodeescape' codec can't decode bytes in
position 25-26: truncated \UXXXXXXXX escape
the fix that worked is:
self.path = r'T:\PythonScripts\Projects\Utilities'
It seems the '\U' was producing an error and the 'r' preceding the string turns off the eight-character Unicode escape (for a raw string) which was failing. (This is a bit of an over-simplification, but it works if you don't care about unicode)
Hope this helps someone
Inject a script into the page you want to get the source from and message it back to the popup....
manifest.json
{
"name": "Get pages source",
"version": "1.0",
"manifest_version": 2,
"description": "Get pages source from a popup",
"browser_action": {
"default_icon": "icon.png",
"default_popup": "popup.html"
},
"permissions": ["tabs", "<all_urls>"]
}
popup.html
<!DOCTYPE html>
<html style=''>
<head>
<script src='popup.js'></script>
</head>
<body style="width:400px;">
<div id='message'>Injecting Script....</div>
</body>
</html>
popup.js
chrome.runtime.onMessage.addListener(function(request, sender) {
if (request.action == "getSource") {
message.innerText = request.source;
}
});
function onWindowLoad() {
var message = document.querySelector('#message');
chrome.tabs.executeScript(null, {
file: "getPagesSource.js"
}, function() {
// If you try and inject into an extensions page or the webstore/NTP you'll get an error
if (chrome.runtime.lastError) {
message.innerText = 'There was an error injecting script : \n' + chrome.runtime.lastError.message;
}
});
}
window.onload = onWindowLoad;
getPagesSource.js
// @author Rob W <http://stackoverflow.com/users/938089/rob-w>
// Demo: var serialized_html = DOMtoString(document);
function DOMtoString(document_root) {
var html = '',
node = document_root.firstChild;
while (node) {
switch (node.nodeType) {
case Node.ELEMENT_NODE:
html += node.outerHTML;
break;
case Node.TEXT_NODE:
html += node.nodeValue;
break;
case Node.CDATA_SECTION_NODE:
html += '<![CDATA[' + node.nodeValue + ']]>';
break;
case Node.COMMENT_NODE:
html += '<!--' + node.nodeValue + '-->';
break;
case Node.DOCUMENT_TYPE_NODE:
// (X)HTML documents are identified by public identifiers
html += "<!DOCTYPE " + node.name + (node.publicId ? ' PUBLIC "' + node.publicId + '"' : '') + (!node.publicId && node.systemId ? ' SYSTEM' : '') + (node.systemId ? ' "' + node.systemId + '"' : '') + '>\n';
break;
}
node = node.nextSibling;
}
return html;
}
chrome.runtime.sendMessage({
action: "getSource",
source: DOMtoString(document)
});
I always use this syntax to create the foreign key constraint between 2 tables
Alter Table ForeignKeyTable
Add constraint `ForeignKeyTable_ForeignKeyColumn_FK`
`Foreign key (ForeignKeyColumn)` references `PrimaryKeyTable (PrimaryKeyColumn)`
i.e.
Alter Table tblEmployee
Add constraint tblEmployee_DepartmentID_FK
foreign key (DepartmentID) references tblDepartment (ID)
JS time value for MySQL
var datetime = new Date().toLocaleString();
OR
const DATE_FORMATER = require( 'dateformat' );
var datetime = DATE_FORMATER( new Date(), "yyyy-mm-dd HH:MM:ss" );
OR
const MOMENT= require( 'moment' );
let datetime = MOMENT().format( 'YYYY-MM-DD HH:mm:ss.000' );
you can send this in params its will work.
Look at gocept.cache on pypi, manage timeout.
If you have view Collection (Multiple View) do this
func setGradientBackground() {
let v:UIView
for v in viewgradian
//here viewgradian is your view Collection Outlet name
{
let layer:CALayer
var arr = [AnyObject]()
for layer in v.layer.sublayers!
{
arr.append(layer)
}
let colorTop = UIColor(red: 216.0/255.0, green: 240.0/255.0, blue: 244.0/255.0, alpha: 1.0).cgColor
let colorBottom = UIColor(red: 255.0/255.0, green: 255.0/255.0, blue: 255.0/255.0, alpha: 1.0).cgColor
let gradientLayer = CAGradientLayer()
gradientLayer.colors = [ colorBottom, colorTop]
gradientLayer.startPoint = CGPoint(x: 1.0, y: 0.0)
gradientLayer.endPoint = CGPoint(x: 0.0, y: 1.0)
gradientLayer.frame = v.bounds
v.layer.insertSublayer(gradientLayer, at: 0)
}
}
// just use (useEffect). every change will be logged with current value
import React, { useEffect } from "react";
export function () {
useEffect(() => {
window.addEventListener('resize', () => {
const myWidth = window.innerWidth;
console.log('my width :::', myWidth)
})
},[window])
return (
<>
enter code here
</>
)
}
If one really wanted to they could make there own version of scanf()
like so:
import java.util.ArrayList;
import java.util.Scanner;
public class Testies {
public static void main(String[] args) {
ArrayList<Integer> nums = new ArrayList<Integer>();
ArrayList<String> strings = new ArrayList<String>();
// get input
System.out.println("Give me input:");
scanf(strings, nums);
System.out.println("Ints gathered:");
// print numbers scanned in
for(Integer num : nums){
System.out.print(num + " ");
}
System.out.println("\nStrings gathered:");
// print strings scanned in
for(String str : strings){
System.out.print(str + " ");
}
System.out.println("\nData:");
for(int i=0; i<strings.size(); i++){
System.out.println(nums.get(i) + " " + strings.get(i));
}
}
// get line from system
public static void scanf(ArrayList<String> strings, ArrayList<Integer> nums){
Scanner getLine = new Scanner(System.in);
Scanner input = new Scanner(getLine.nextLine());
while(input.hasNext()){
// get integers
if(input.hasNextInt()){
nums.add(input.nextInt());
}
// get strings
else if(input.hasNext()){
strings.add(input.next());
}
}
}
// pass it a string for input
public static void scanf(String in, ArrayList<String> strings, ArrayList<Integer> nums){
Scanner input = (new Scanner(in));
while(input.hasNext()){
// get integers
if(input.hasNextInt()){
nums.add(input.nextInt());
}
// get strings
else if(input.hasNext()){
strings.add(input.next());
}
}
}
}
Obviously my methods only check for Strings and Integers, if you want different data types to be processed add the appropriate arraylists and checks for them. Also, hasNext()
should probably be at the bottom of the if-else if
sequence since hasNext()
will return true for all of the data in the string.
Output:
Give me input:
apples 8 9 pears oranges 5
Ints gathered:
8 9 5
Strings gathered:
apples pears oranges
Data:
8 apples
9 pears
5 oranges
Probably not the best example; but, the point is that Scanner
implements the Iterator
class. Making it easy to iterate through the scanners input using the hasNext<datatypehere>()
methods; and then storing the input.
I'm sure you have your reasons, but just in case... you should also consider using a "merge" query instead:
begin
merge into some_table st
using (select 'some' name, 'values' value from dual) v
on (st.name=v.name)
when matched then update set st.value=v.value
when not matched then insert (name, value) values (v.name, v.value);
end;
(modified the above to be in the begin/end block; obviously you can run it independantly of the procedure too).
For those who understand that you have to overlay an invisible form over the link, but are too lazy to write, I wrote it for you. Well, for me, but might as well share. Comments are welcome.
HTML (Somewhere):
<a id="fileLink" href="javascript:fileBrowse();" onmouseover="fileMove();">File Browse</a>
HTML (Somewhere you don't care about):
<div id="uploadForm" style="filter:alpha(opacity=0); opacity: 0.0; width: 300px; cursor: pointer;">
<form method="POST" enctype="multipart/form-data">
<input type="file" name="file" />
</form>
</div>
JavaScript:
function pageY(el) {
var ot = 0;
while (el && el.offsetParent != el) {
ot += el.offsetTop ? el.offsetTop : 0;
el = el.offsetParent;
}
return ot;
}
function pageX(el) {
var ol = 0;
while (el && el.offsetParent != el) {
ol += el.offsetLeft ? el.offsetLeft : 0;
el = el.offsetParent;
}
return ol;
}
function fileMove() {
if (navigator.appName == "Microsoft Internet Explorer") {
return; // Don't need to do this in IE.
}
var link = document.getElementById("fileLink");
var form = document.getElementById("uploadForm");
var x = pageX(link);
var y = pageY(link);
form.style.position = 'absolute';
form.style.left = x + 'px';
form.style.top = y + 'px';
}
function fileBrowse() {
// This works in IE only. Doesn't do jack in FF. :(
var browseField = document.getElementById("uploadForm").file;
browseField.click();
}
To add to the debate here.
There are known issues with garbage collection, and understanding them helps understanding why there is none in C++.
1. Performance ?
The first complaint is often about performance, but most people don't really realize what they are talking about. As illustrated by Martin Beckett
the problem may not be performance per se, but the predictability of performance.
There are currently 2 families of GC that are widely deployed:
The Mark And Sweep
is faster (less impact on overall performance) but it suffers from a "freeze the world" syndrome: i.e. when the GC kicks in, everything else is stopped until the GC has made its cleanup. If you wish to build a server that answers in a few milliseconds... some transactions will not live up to your expectations :)
The problem of Reference Counting
is different: reference-counting adds overhead, especially in Multi-Threading environments because you need to have an atomic count. Furthermore there is the problem of reference cycles so you need a clever algorithm to detect those cycles and eliminate them (generally implement by a "freeze the world" too, though less frequent). In general, as of today, this kind (even though normally more responsive or rather, freezing less often) is slower than the Mark And Sweep
.
I have seen a paper by Eiffel implementers that were trying to implement a Reference Counting
Garbage Collector that would have a similar global performance to Mark And Sweep
without the "Freeze The World" aspect. It required a separate thread for the GC (typical). The algorithm was a bit frightening (at the end) but the paper made a good job of introducing the concepts one at a time and showing the evolution of the algorithm from the "simple" version to the full-fledged one. Recommended reading if only I could put my hands back on the PDF file...
2. Resources Acquisition Is Initialization (RAII)
It's a common idiom in C++
that you will wrap the ownership of resources within an object to ensure that they are properly released. It's mostly used for memory since we don't have garbage collection, but it's also useful nonetheless for many other situations:
The idea is to properly control the lifetime of the object:
The problem of GC is that if it helps with the former and ultimately guarantees that later... this "ultimate" may not be sufficient. If you release a lock, you'd really like that it be released now, so that it does not block any further calls!
Languages with GC have two work arounds:
using
construct... but it's explicit (weak) RAII while in C++ RAII is implicit so that the user CANNOT unwittingly make the error (by omitting the using
keyword)3. Smart Pointers
Smart pointers often appear as a silver bullet to handle memory in C++
. Often times I have heard: we don't need GC after all, since we have smart pointers.
One could not be more wrong.
Smart pointers do help: auto_ptr
and unique_ptr
use RAII concepts, extremely useful indeed. They are so simple that you can write them by yourself quite easily.
When one need to share ownership however it gets more difficult: you might share among multiple threads and there are a few subtle issues with the handling of the count. Therefore, one naturally goes toward shared_ptr
.
It's great, that's what Boost for after all, but it's not a silver bullet. In fact, the main issue with shared_ptr
is that it emulates a GC implemented by Reference Counting
but you need to implement the cycle detection all by yourself... Urg
Of course there is this weak_ptr
thingy, but I have unfortunately already seen memory leaks despite the use of shared_ptr
because of those cycles... and when you are in a Multi Threaded environment, it's extremely difficult to detect!
4. What's the solution ?
There is no silver bullet, but as always, it's definitely feasible. In the absence of GC one need to be clear on ownership:
weak_ptr
So indeed, it would be great to have a GC... however it's no trivial issue. And in the mean time, we just need to roll up our sleeves.
listOfSomething.Clear();
listOfSomething.Add("first");
collection.Add(listOfSomething);
You are clearing the list here and adding one element ("first"), the 1st reference of listOfSomething
is updated as well sonce both reference the same object, so when you access the second element myList.get(1)
(which does not exist anymore) you get the null.
Notice both collection.Add(listOfSomething);
save two references to the same arraylist object.
You need to create two different instances for two elements:
ArrayList<ArrayList<String>> collection = new ArrayList<ArrayList<String>>();
ArrayList<String> listOfSomething1 = new ArrayList<String>();
listOfSomething1.Add("first");
listOfSomething1.Add("second");
ArrayList<String> listOfSomething2 = new ArrayList<String>();
listOfSomething2.Add("first");
collection.Add(listOfSomething1);
collection.Add(listOfSomething2);
I love to work with Volley. To save development time i tried to write small handy library Gloxey Netwok Manager to setup Volley with my project. It includes JSON parser and different other methods that helps to check network availability.
Use ConnectionManager.class
in which different methods for Volley String and Volley JSON request are available.
You can make requests of GET, PUT, POST, DELETE with or without header. You can read full documentation here.
Just put this line in your gradle file.
dependencies {
compile 'io.gloxey.gnm:network-manager:1.0.1'
}
Method GET (without header)
ConnectionManager.volleyStringRequest(context, isDialog, progressDialogView, requestURL, volleyResponseInterface);
Configuration Description
Context Context
isDialog If true dialog will appear, otherwise not.
progressView For custom progress view supply your progress view id and make isDialog true. otherwise pass null.
requestURL Pass your API URL.
volleyResponseInterface Callback for response.
Example
ConnectionManager.volleyStringRequest(this, false, null, "url", new VolleyResponse() {
@Override
public void onResponse(String _response) {
/**
* Handle Response
*/
}
@Override
public void onErrorResponse(VolleyError error) {
/**
* handle Volley Error
*/
}
@Override
public void isNetwork(boolean connected) {
/**
* True if internet is connected otherwise false
*/
}
});
Method POST/PUT/DELETE (without header)
ConnectionManager.volleyStringRequest(context, isDialog, progressDialogView, requestURL, requestMethod, params, volleyResponseInterface);
Example
Use Method : Request.Method.POST
Request.Method.PUT
Request.Method.DELETE
Your params :
HashMap<String, String> params = new HashMap<>();
params.put("param 1", "value");
params.put("param 2", "value");
ConnectionManager.volleyStringRequest(this, true, null, "url", Request.Method.POST, params, new VolleyResponse() {
@Override
public void onResponse(String _response) {
/**
* Handle Response
*/
}
@Override
public void onErrorResponse(VolleyError error) {
/**
* handle Volley Error
*/
}
@Override
public void isNetwork(boolean connected) {
/**
* True if internet is connected otherwise false
*/
}
});
Feel free to use gloxey json parser to parse your api response.
YourModel yourModel = GloxeyJsonParser.getInstance().parse(stringResponse, YourModel.class);
Example
ConnectionManager.volleyStringRequest(this, false, null, "url", new VolleyResponse() {
@Override
public void onResponse(String _response) {
/**
* Handle Response
*/
try {
YourModel yourModel = GloxeyJsonParser.getInstance().parse(_response, YourModel.class);
} catch (Exception e) {
e.printStackTrace();
}
}
@Override
public void onErrorResponse(VolleyError error) {
/**
* handle Volley Error
*/
if (error instanceof TimeoutError || error instanceof NoConnectionError) {
showSnackBar(parentLayout, getString(R.string.internet_not_found), getString(R.string.retry), new View.OnClickListener() {
@Override
public void onClick(View view) {
//handle retry button
}
});
} else if (error instanceof AuthFailureError) {
} else if (error instanceof ServerError) {
} else if (error instanceof NetworkError) {
} else if (error instanceof ParseError) {
}
}
@Override
public void isNetwork(boolean connected) {
/**
* True if internet is connected otherwise false
*/
if (!connected) {
showSnackBar(parentLayout, getString(R.string.internet_not_found), getString(R.string.retry), new View.OnClickListener() {
@Override
public void onClick(View view) {
//Handle retry button
}
});
}
});
public void showSnackBar(View view, String message) {
Snackbar.make(view, message, Snackbar.LENGTH_LONG).show();
}
public void showSnackBar(View view, String message, String actionText, View.OnClickListener onClickListener) {
Snackbar.make(view, message, Snackbar.LENGTH_LONG).setAction(actionText, onClickListener).show();
}
public boolean isOnline() {
ConnectivityManager cm = (ConnectivityManager) getSystemService(Context.CONNECTIVITY_SERVICE);
NetworkInfo netInfo = cm.getActiveNetworkInfo();
if (netInfo != null && netInfo.isConnectedOrConnecting()) {
return true;
} else {
return false;
}
}
Google recommends this code block for checking internet connection. Because the device may have not internet connection even if it is connected to WiFi.
Here's an example of code which uses the UTL_FILE.PUT and UTL_FILE.PUT_LINE calls:
declare
fHandle UTL_FILE.FILE_TYPE;
begin
fHandle := UTL_FILE.FOPEN('my_directory', 'test_file', 'w');
UTL_FILE.PUT(fHandle, 'This is the first line');
UTL_FILE.PUT(fHandle, 'This is the second line');
UTL_FILE.PUT_LINE(fHandle, 'This is the third line');
UTL_FILE.FCLOSE(fHandle);
EXCEPTION
WHEN OTHERS THEN
DBMS_OUTPUT.PUT_LINE('Exception: SQLCODE=' || SQLCODE || ' SQLERRM=' || SQLERRM);
RAISE;
end;
The output from this looks like:
This is the first lineThis is the second lineThis is the third line
Share and enjoy.
This can be simplified by completely skipping the where object and the $users declaration. All you need is:
Code
get-content c:\scripts\users.txt | get-aduser -properties * | select displayname, office | export-csv c:\path\to\your.csv
Basically it contains all the attributes which describe the object in question. It can be used to alter or read the attributes.
Quoting from the documentation for __dict__
A dictionary or other mapping object used to store an object's (writable) attributes.
Remember, everything is an object in Python. When I say everything, I mean everything like functions, classes, objects etc (Ya you read it right, classes. Classes are also objects). For example:
def func():
pass
func.temp = 1
print(func.__dict__)
class TempClass:
a = 1
def temp_function(self):
pass
print(TempClass.__dict__)
will output
{'temp': 1}
{'__module__': '__main__',
'a': 1,
'temp_function': <function TempClass.temp_function at 0x10a3a2950>,
'__dict__': <attribute '__dict__' of 'TempClass' objects>,
'__weakref__': <attribute '__weakref__' of 'TempClass' objects>,
'__doc__': None}
Simple Css work for me
.modal-dialog {
max-width : 100% ;
}
You've probably miss-typed something above that bit of code or created your own class called IPAddress. If you're using the .net one, that function should be available.
Have you tried using System.Net.IPAddress just in case?
System.Net.IPAddress ipaddress = System.Net.IPAddress.Parse("127.0.0.1"); //127.0.0.1 as an example
The docs on Microsoft's site have a complete example which works fine on my machine.
Use @IBDesignable and @IBInspectable to do the same.
They are re-useable, easily modifiable from the Interface Builder and the changes are reflected immediately in the Storyboard
Conform the objects in the storyboard to the particular class
Code Snippet:
@IBDesignable
class CustomView: UIView{
@IBInspectable var borderWidth: CGFloat = 0.0{
didSet{
self.layer.borderWidth = borderWidth
}
}
@IBInspectable var borderColor: UIColor = UIColor.clear {
didSet {
self.layer.borderColor = borderColor.cgColor
}
}
override func prepareForInterfaceBuilder() {
super.prepareForInterfaceBuilder()
}
}
Allows easy modification from Interface Builder:
2018: CSS3
div{
position: absolute;
top: 50%;
left: 50%;
margin-right: -50%;
transform: translate(-50%, -50%);
}
This is even shorter. For more information see this: CSS: Centering Things
What about this:
with open("your_csv_file.csv", "w") as f:
f.write("\n".join(text))
str.join() Return a string which is the concatenation of the strings in iterable. The separator between elements is the string providing this method.
Use the isSelected method.
You can also use an ItemListener so you'll be notified when it's checked or unchecked.
Try
let refresch = ()=> document.body.style= 'background: #'
+Math.random().toString(16).slice(-6);
let intId = setInterval(refresch, 1000);
let stop = ()=> clearInterval(intId);
_x000D_
body {transition: 1s}
_x000D_
<button onclick="stop()">Stop</button>
_x000D_
One option would be:
SET SERVEROUTPUT ON
EXEC DBMS_OUTPUT.PUT_LINE(your_fn_name(your_fn_arguments));
As others have said, std::max_element()
and std::min_element()
return iterators, which need to be dereferenced to obtain the value.
The advantage of returning an iterator (rather than just the value) is that it allows you to determine the position of the (first) element in the container with the maximum (or minimum) value.
For example (using C++11 for brevity):
#include <vector>
#include <algorithm>
#include <iostream>
int main()
{
std::vector<double> v {1.0, 2.0, 3.0, 4.0, 5.0, 1.0, 2.0, 3.0, 4.0, 5.0};
auto biggest = std::max_element(std::begin(v), std::end(v));
std::cout << "Max element is " << *biggest
<< " at position " << std::distance(std::begin(v), biggest) << std::endl;
auto smallest = std::min_element(std::begin(v), std::end(v));
std::cout << "min element is " << *smallest
<< " at position " << std::distance(std::begin(v), smallest) << std::endl;
}
This yields:
Max element is 5 at position 4
min element is 1 at position 0
Using std::minmax_element()
as suggested in the comments above may be faster for large data sets, but may give slightly different results. The values for my example above would be the same, but the position of the "max" element would be 9
since...
If several elements are equivalent to the largest element, the iterator to the last such element is returned.
Here is the basis of a more secure version of the accepted answer, using PHP's filter_input function, which also makes up for the potential lack of $_SERVER['REQUEST_URI']
:
$protocol_https = filter_input(INPUT_SERVER, 'HTTPS', FILTER_SANITIZE_STRING);
$host = filter_input(INPUT_SERVER, 'HTTP_HOST', FILTER_SANITIZE_URL);
$request_uri = filter_input(INPUT_SERVER, 'REQUEST_URI', FILTER_SANITIZE_URL);
if(strlen($request_uri) == 0)
{
$request_uri = filter_input(INPUT_SERVER, 'SCRIPT_NAME', FILTER_SANITIZE_URL);
$query_string = filter_input(INPUT_SERVER, 'QUERY_STRING', FILTER_SANITIZE_URL);
if($query_string)
{
$request_uri .= '?' . $query_string;
}
}
$full_url = ($protocol_https ? 'https' : 'http') . '://' . $host . $request_uri;
You could use some different filters to tweak it to your liking.
SSL certificates are bound to a 'common name', which is usually a fully qualified domain name but can be a wildcard name (eg. *.domain.com) or even an IP address, but it usually isn't.
In your case, you are accessing your LDAP server by a hostname and it sounds like your two LDAP servers have different SSL certificates installed. Are you able to view (or download and view) the details of the SSL certificate? Each SSL certificate will have a unique serial numbers and fingerprint which will need to match. I assume the certificate is being rejected as these details don't match with what's in your certificate store.
Your solution will be to ensure that both LDAP servers have the same SSL certificate installed.
BTW - you can normally override DNS entries on your workstation by editing a local 'hosts' file, but I wouldn't recommend this.
You somehow have to refer to the variable you want to print the name of. So it would look like:
print varname(something_else)
There is no such function, but if there were it would be kind of pointless. You have to type out something_else
, so you can as well just type quotes to the left and right of it to print the name as a string:
print "something_else"
I believe buffer length needs to be specified, as memory is finite and you may run out of it
Example:
InputStream in = new FileInputStream(strFileName);
long length = fileFileName.length();
if (length > Integer.MAX_VALUE) {
throw new IOException("File is too large!");
}
byte[] bytes = new byte[(int) length];
int offset = 0;
int numRead = 0;
while (offset < bytes.length && (numRead = in.read(bytes, offset, bytes.length - offset)) >= 0) {
offset += numRead;
}
if (offset < bytes.length) {
throw new IOException("Could not completely read file " + fileFileName.getName());
}
in.close();
On Linux, see constant INET6_ADDRSTRLEN
(include <arpa/inet.h>
, see man inet_ntop
). On my system (header "in.h"):
#define INET6_ADDRSTRLEN 46
The last character is for terminating NULL, as I belive, so the max length is 45, as other answers.
Solution for Mac
Reason: Eclipse is copied from one location to another.
Solution: Need to update path(s) in eclipse.ini
. My eclipse.ini
was found in /Applications/eclipse/Eclipse.app/Contents/MacOS/eclipse.ini
.
We need to update the path for plugins\org.eclipse.equinox.launcher_1.0.100.v20080509-1800.jar
.
Found this while working with Epicycles - clearly works - where 'p' is invisible to my eyes.
/** Convert a set of picture points to a set of Cartesian coordinates */
function toCartesian(points, scale) {
const x_max = Math.max(...points.map(p=>p[0])),
y_max = Math.max(...points.map(p=>p[1])),
x_min = Math.min(...points.map(p=>p[0])),
y_min = Math.min(...points.map(p=>p[1])),
signed_x_max = Math.floor((x_max - x_min + 1) / 2),
signed_y_max = Math.floor((y_max - y_min + 1) / 2);
return points.map(p=>
[ -scale * (signed_x_max - p[0] + x_min),
scale * (signed_y_max - p[1] + y_min) ] );
}
Your local branch doensn't know about the remote branch. If you don't tell git that your local branch (master) is supposed to compare itself to the remote counterpart (origin/master in this case); then git status won't tell you the difference between your branch and the remote one. So you should use:
git branch --set-upstream-to origin/master
or with the short option:
git branch -u origin/master
This options --set-upstream-to (or -u in short) was introduced in git 1.8.0.
Once you have set this option; git status
will show you something like:
# Your branch is ahead of 'origin/master' by 1 commit.
This is how I did it and it works:
dictlist = [dict() for x in range(n)]
It gives you a list of n empty dictionaries.
Are you running Android M? If so, this is because it's not enough to declare permissions in the manifest. For some permissions, you have to explicitly ask user in the runtime: http://developer.android.com/training/permissions/requesting.html
I came across the same problem using a Wordpress page and plugin. This didn't work for the iframe plugin
[iframe src="https://itunes.apple.com/gb/app/witch-hunt/id896152730#?platform=iphone"]
but this does:
[iframe src="https://itunes.apple.com/gb/app/witch-hunt/id896152730" width="100%" height="480" ]
As you see,
I just left off the #?platform=iphone
part in the end.
Maybe the solution someone is looking for is this:
Response.Redirect("/Sucesso")
This work when used in the View as well.
Here is an example using css3:
CSS:
html, body {
height: 100%;
margin: 0;
}
#wrap {
padding: 10px;
min-height: -webkit-calc(100% - 100px); /* Chrome */
min-height: -moz-calc(100% - 100px); /* Firefox */
min-height: calc(100% - 100px); /* native */
}
.footer {
position: relative;
clear:both;
}
HTML:
<div id="wrap">
<div class="container clear-top">
body content....
</div>
</div>
<footer class="footer">
footer content....
</footer>
The std::string.append
function isn't a good option because it doesn't accept many forms of data. A more useful alternative is to use std::stringstream
; like so:
#include <sstream>
// ...
std::stringstream ss;
//put arbitrary formatted data into the stream
ss << 4.5 << ", " << 4 << " whatever";
//convert the stream buffer into a string
std::string str = ss.str();
Please try the below code for repeated fade-out/fade-in animation
AlphaAnimation anim = new AlphaAnimation(1.0f, 0.3f);
anim.setRepeatCount(Animation.INFINITE);
anim.setRepeatMode(Animation.REVERSE);
anim.setDuration(300);
view.setAnimation(anim); // to start animation
view.setAnimation(null); // to stop animation
The data is stored on the device, in your application's private data area. It is not in an Eclipse project.
From 5.2.2/2 (character display semantics) :
\b
(backspace) Moves the active position to the previous position on the current line. If the active position is at the initial position of a line, the behavior of the display device is unspecified.
\n
(new line) Moves the active position to the initial position of the next line.
\r
(carriage return) Moves the active position to the initial position of the current line.
Here, your code produces :
<new_line>ab
\b
: back one charactersi
: overrides the b
with s
(producing asi
on the second line)\r
: back at the beginning of the current lineha
: overrides the first two characters (producing hai
on the second line)In the end, the output is :
\nhai
The ideal way would be to add CORS support to your server.
You could also try using a separate jsonp module. As far as I know axios does not support jsonp. So I am not sure if the method you are using would qualify as a valid jsonp request.
There is another hackish work around for the CORS problem. You will have to deploy your code with an nginx server serving as a proxy for both your server and your client.
The thing that will do the trick us the proxy_pass
directive. Configure your nginx server in such a way that the location block handling your particular request will proxy_pass
or redirect your request to your actual server.
CORS problems usually occur because of change in the website domain.
When you have a singly proxy serving as the face of you client and you server, the browser is fooled into thinking that the server and client reside in the same domain. Ergo no CORS.
Consider this example.
Your server is my-server.com
and your client is my-client.com
Configure nginx as follows:
// nginx.conf
upstream server {
server my-server.com;
}
upstream client {
server my-client.com;
}
server {
listen 80;
server_name my-website.com;
access_log /path/to/access/log/access.log;
error_log /path/to/error/log/error.log;
location / {
proxy_pass http://client;
}
location ~ /server/(?<section>.*) {
rewrite ^/server/(.*)$ /$1 break;
proxy_pass http://server;
}
}
Here my-website.com
will be the resultant name of the website where the code will be accessible (name of the proxy website).
Once nginx is configured this way. You will need to modify the requests such that:
my-server.com/<API-path>
to my-website.com/server/<API-path>
In case you are not familiar with nginx I would advise you to go through the documentation.
To explain what is happening in the configuration above in brief:
upstream
s define the actual servers to whom the requests will be redirectedserver
block is used to define the actual behaviour of the nginx server.server_name
is used to identify the block which will be used to handle the current request. error_log
and access_log
directives are used to define the locations of the log files (used for debugging)location
blocks define the handling of different types of requests:
/
all these requests are redirected to the client/server/<API-path>
. We will be redirecting all such requests to the server.Note: /server
here is being used to distinguish the client side requests from the server side requests. Since the domain is the same there is no other way of distinguishing requests. Keep in mind there is no such convention that compels you to add /server
in all such use cases. It can be changed to any other string eg. /my-server/<API-path>
, /abc/<API-path>
, etc.
Even though this technique should do the trick, I would highly advise you to add CORS support to the server as this is the ideal way situations like these should be handled.
If you wish to avoid doing all this while developing you could for this chrome extension. It should allow you to perform cross domain requests during development.
Alternative solution is to use Refinements, like so:
module Nothingness
refine Numeric do
alias_method :nothing?, :zero?
end
refine NilClass do
alias_method :nothing?, :nil?
end
end
using Nothingness
if discount.nothing?
# do something
end
"By the way...... How to refresh it every time so it print mi in one place just change the number."
It's really tricky topic. What zack suggested ( outputting console control codes ) is one way to achieve that.
You can use (n)curses, but that works mainly on *nixes.
On Windows (and here goes interesting part) which is rarely mentioned (I can't understand why) you can use Python bindings to WinAPI (http://sourceforge.net/projects/pywin32/ also with ActivePython by default) - it's not that hard and works well. Here's a small example:
import win32console, time
output_handle = win32console.GetStdHandle( win32console.STD_OUTPUT_HANDLE )
info = output_handle.GetConsoleScreenBufferInfo()
pos = info["CursorPosition"]
for i in "\\|/-\\|/-":
output_handle.WriteConsoleOutputCharacter( i, pos )
time.sleep( 1 )
Or, if you want to use print
(statement or function, no difference):
import win32console, time
output_handle = win32console.GetStdHandle( win32console.STD_OUTPUT_HANDLE )
info = output_handle.GetConsoleScreenBufferInfo()
pos = info["CursorPosition"]
for i in "\\|/-\\|/-":
print i
output_handle.SetConsoleCursorPosition( pos )
time.sleep( 1 )
win32console
module enables you to do many more interesting things with windows console... I'm not a big fan of WinAPI, but recently I realized that at least half of my antipathy towards it was caused by writing WinAPI code in C - pythonic bindings are much easier to use.
All other answers are great and pythonic, of course, but... What if I wanted to print on previous line? Or write multiline text, than clear it and write the same lines again? My solution makes that possible.
Contrary to what pointy says, the blur()
method does exist and is a part of the w3c standard. The following exaple will work in every modern browser (including IE):
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN" "http://www.w3.org/TR/html4/strict.dtd">
<html>
<head>
<title>Javascript test</title>
<script type="text/javascript" language="javascript">
window.onload = function()
{
var field = document.getElementById("field");
var link = document.getElementById("link");
var output = document.getElementById("output");
field.onfocus = function() { output.innerHTML += "<br/>field.onfocus()"; };
field.onblur = function() { output.innerHTML += "<br/>field.onblur()"; };
link.onmouseover = function() { field.blur(); };
};
</script>
</head>
<body>
<form name="MyForm">
<input type="text" name="field" id="field" />
<a href="javascript:void(0);" id="link">Blur field on hover</a>
<div id="output"></div>
</form>
</body>
</html>
Note that I used link.onmouseover
instead of link.onclick
, because otherwise the click itself would have removed the focus.
It is not possible. §2.3 says that "." is an unreserved character and that "URIs that differ in the replacement of an unreserved character with its corresponding percent-encoded US-ASCII octet are equivalent". Therefore, /%2E%2E/
is the same as /../
, and that will get normalized away.
(This is a combination of an answer by bobince and a comment by slowpoison.)
Yes, like in plain sql you could specify what kind of properties you want to select:
SELECT i.firstProperty, i.secondProperty FROM ObjectName i WHERE i.id=10
Executing this query will return a list of Object[], where each array contains the selected properties of one object.
Another way is to wrap the selected properties in a custom object and execute it in a TypedQuery:
String query = "SELECT NEW CustomObject(i.firstProperty, i.secondProperty) FROM ObjectName i WHERE i.id=10";
TypedQuery<CustomObject> typedQuery = em.createQuery(query , CustomObject.class);
List<CustomObject> results = typedQuery.getResultList();
Examples can be found in this article.
UPDATE 29.03.2018:
@Krish:
@PatrickLeitermann for me its giving "Caused by: org.hibernate.hql.internal.ast.QuerySyntaxException: Unable to locate class ***" exception . how to solve this ?
I guess you’re using JPA in the context of a Spring application, don't you? Some other people had exactly the same problem and their solution was adding the fully qualified name (e. g. com.example.CustomObject) after the SELECT NEW keywords.
Maybe the internal implementation of the Spring data framework only recognizes classes annotated with @Entity or registered in a specific orm file by their simple name, which causes using this workaround.
CSS
body {
background: rgb(204,204,204);
}
page[size="A4"] {
background: white;
width: 21cm;
height: 29.7cm;
display: block;
margin: 0 auto;
margin-bottom: 0.5cm;
box-shadow: 0 0 0.5cm rgba(0,0,0,0.5);
}
@media print {
body, page[size="A4"] {
margin: 0;
box-shadow: 0;
}
}
HTML
<page size="A4"></page>
<page size="A4"></page>
<page size="A4"></page>
You can find another simpler option in a thread here: Match Against.. with a more detail help in 11.9.2. Boolean Full-Text Searches
This is just in case someone need a more compact option. This will require to create an Index FULLTEXT in the table, which can be accomplish easily.
Information on how to create Indexes (MySQL): MySQL FULLTEXT Indexing and Searching
In the FULLTEXT
Index you can have more than one column listed, the result would be an SQL Statement with an index named search
:
SELECT *,MATCH (`column`) AGAINST('+keyword1* +keyword2* +keyword3*') as relevance FROM `documents`USE INDEX(search) WHERE MATCH (`column`) AGAINST('+keyword1* +keyword2* +keyword3*' IN BOOLEAN MODE) ORDER BY relevance;
I tried with multiple columns, with no luck. Even though multiple columns are allowed in indexes, you still need an index for each column to use with Match/Against Statement.
Depending in your criterias you can use either options.
This Q repeats time and time again - a simple way to patch the json module such that serialization would support datetime.
import json
import datetime
json.JSONEncoder.default = lambda self,obj: (obj.isoformat() if isinstance(obj, datetime.datetime) else None)
Than use json serialization as you always do - this time with datetime being serialized as isoformat.
json.dumps({'created':datetime.datetime.now()})
Resulting in: '{"created": "2015-08-26T14:21:31.853855"}'
See more details and some words of caution at: StackOverflow: JSON datetime between Python and JavaScript
In the spirit of changing the rendering instead of changing the content, the following CSS makes each newline behave like a <br>
:
white-space: pre;
white-space: pre-line;
Why two rules: pre-line
only affects newlines (thanks for the clue, @KevinPauli). IE6-7 and other old browsers fall back to the more extreme pre
which also includes nowrap
and renders multiple spaces. Details on these and other settings (pre-wrap
) at mozilla and css-tricks (thanks @Sablefoste).
While I'm generally averse to the S.O. predilection for second-guessing the question rather than answering it, in this case replacing newlines with <br>
markup may increase vulnerability to injection attack with unwashed user input. You're crossing a bright red line whenever you find yourself changing .text()
calls to .html()
which the literal question implies would have to be done. (Thanks @AlexS for highlighting this point.) Even if you rule out a security risk at the time, future changes could unwittingly introduce it. Instead, this CSS allows you to get hard line breaks without markup using the safer .text()
.
if [ $( ls <file> ) ]; then rm <file>; fi
Also, if you redirect your output with >
instead of >>
it will overwrite the previous file
You can do that just using CSS.
You'll need to place another tag inside the <a>
and then you can change the CSS background-image
attribute on a:hover
.
i.e.
HTML:
<a href="#" id="name">
<span> </span>
</a>
CSS:
a#name span{
background-image:url(image/path);
}
a#name:hover span{
background-image:url(another/image/path);
}
In c++ you could use std::string to get repeated character
printf("%s",std::string(count,char).c_str());
For example:
printf("%s",std::string(5,'a').c_str());
output:
aaaaa
I just want to edit this for posterity that the tags for oracle weren't added when I answered this question. My response was more applicable to MS SQL.
Merge join is the best possible as it exploits the ordering, resulting in a single pass down the tables to do the join. IF you have two tables (or covering indexes) that have their ordering the same such as a primary key and an index of a table on that key then a merge join would result if you performed that action.
Hash join is the next best, as it's usually done when one table has a small number (relatively) of items, its effectively creating a temp table with hashes for each row which is then searched continuously to create the join.
Worst case is nested loop which is order (n * m) which means there is no ordering or size to exploit and the join is simply, for each row in table x, search table y for joins to do.
"commentLine" is the name of function you are looking for. This function coment and uncoment with the same keybinding
we are in 2017 now you can also use ES2016
var a = 'abc123.8<blah>';
console.log([...a].filter( e => isFinite(e)).join(''));
or
console.log([...'abc123.8<blah>'].filter( e => isFinite(e)).join(''));
The result is
1238
If you're using Visual Studio 2013 (may require Pro edition or higher), I was able to add a virtual directory to an IIS Express (file-based) website by right-clicking on the website in the Solution Explorer and clicking Add > New Virtual Directory. This added an entry to the applicationhost.config file as with the manual methods described here.
If you don't want it to add it to a link, you can just enclose it within a span and that would work.
<span id='clickableAwesomeFont'><i class="fa fa-behance-square fa-4x"></span>
in your css, then you can:
#clickableAwesomeFont {
cursor: pointer
}
Then in java script, you can just add a click handler.
In cases where it's actually not a link, I think this is much cleaner and using a link would be changing its semantics and abusing its meaning.
This blog explains your problem neatly Async Best Practices.
The gist of it being you shouldn't use void as return for an async method, unless it's an async event handler, this is bad practice because it doesn't allow exceptions to be caught ;-).
Best practice would be to change the return type to Task. Also, try to code async all the way trough, make every async method call and be called from async methods. Except for a Main method in a console, which can't be async (before C# 7.1).
You will run into deadlocks with GUI and ASP.NET applications if you ignore this best practice. The deadlock occurs because these applications runs on a context that allows only one thread and won't relinquish it to the async thread. This means the GUI waits synchronously for a return, while the async method waits for the context: deadlock.
This behaviour won't happen in a console application, because it runs on context with a thread pool. The async method will return on another thread which will be scheduled. This is why a test console app will work, but the same calls will deadlock in other applications...
In addition, If you know your code should not work if object is null, you can throw exception by using Optional.orElseThrow
String nullName = null;
String name = Optional.ofNullable(nullName)
.orElseThrow(NullPointerException::new);
// .orElseThrow(CustomException::new);
In case if you are able to compile mvn compile
the project successful from terminal but not from Eclipse check out Window > Preferences >Installed JREs, make sure you have selected JRE that is under JDK (check out the paths of 2 different JRE's in pic), as Maven needs JDK to compile you need to add it.
In some scenarios the intention is to get all DISTINCT LISTAGG keys and the overflow is caused by the fact that LISTAGG concatenates ALL keys.
Here is a small example
create table tab as
select
trunc(rownum/10) x,
'GRP'||to_char(mod(rownum,4)) y,
mod(rownum,10) z
from dual connect by level < 100;
select
x,
LISTAGG(y, '; ') WITHIN GROUP (ORDER BY y) y_lst
from tab
group by x;
X Y_LST
---------- ------------------------------------------------------------------
0 GRP0; GRP0; GRP1; GRP1; GRP1; GRP2; GRP2; GRP3; GRP3
1 GRP0; GRP0; GRP1; GRP1; GRP2; GRP2; GRP2; GRP3; GRP3; GRP3
2 GRP0; GRP0; GRP0; GRP1; GRP1; GRP1; GRP2; GRP2; GRP3; GRP3
3 GRP0; GRP0; GRP1; GRP1; GRP2; GRP2; GRP2; GRP3; GRP3; GRP3
4 GRP0; GRP0; GRP0; GRP1; GRP1; GRP1; GRP2; GRP2; GRP3; GRP3
5 GRP0; GRP0; GRP1; GRP1; GRP2; GRP2; GRP2; GRP3; GRP3; GRP3
6 GRP0; GRP0; GRP0; GRP1; GRP1; GRP1; GRP2; GRP2; GRP3; GRP3
7 GRP0; GRP0; GRP1; GRP1; GRP2; GRP2; GRP2; GRP3; GRP3; GRP3
8 GRP0; GRP0; GRP0; GRP1; GRP1; GRP1; GRP2; GRP2; GRP3; GRP3
9 GRP0; GRP0; GRP1; GRP1; GRP2; GRP2; GRP2; GRP3; GRP3; GRP3
If the groups are large, the repeated keys reach quickly the allowed maximal length and you get the ORA-01489: result of string concatenation is too long
.
Unfortunately there is no support for LISTAGG( DISTINCT y, '; ')
but as a workaround the fact can be used that LISTAGG ignores NULLs. Using the ROW_NUMBER we will consider only the first key.
with rn as (
select x,y,z,
row_number() over (partition by x,y order by y) rn
from tab
)
select
x,
LISTAGG( case when rn = 1 then y end, '; ') WITHIN GROUP (ORDER BY y) y_lst,
sum(z) z
from rn
group by x
order by x;
X Y_LST Z
---------- ---------------------------------- ----------
0 GRP0; GRP1; GRP2; GRP3 45
1 GRP0; GRP1; GRP2; GRP3 45
2 GRP0; GRP1; GRP2; GRP3 45
3 GRP0; GRP1; GRP2; GRP3 45
4 GRP0; GRP1; GRP2; GRP3 45
5 GRP0; GRP1; GRP2; GRP3 45
6 GRP0; GRP1; GRP2; GRP3 45
7 GRP0; GRP1; GRP2; GRP3 45
8 GRP0; GRP1; GRP2; GRP3 45
9 GRP0; GRP1; GRP2; GRP3 45
Of course the same result may be reached using GROUP BY x,y
in the subquery. The advantage of ROW_NUMBER
is that all other aggregate functions may be used as illustrated with SUM(z)
.
In addition to the Haack post, Hanselman also has a similar post. BIN Delploying ASP.NET MVC 3 with Razor to a Windows Server without MVC installed
For me, the "Copy Local = true" solution was insufficient because my Website's project references did not include all the dlls that were missing. As Scott mentions in his post, I also needed to get additional dlls from the following folder on my development box: C:\Program Files (x86)\Microsoft ASP.NET\ASP.NET Web Pages\v1.0\Assemblies. The error message informed me which dll was missing (System.Web.Infrastructure, System.Web.Razor, etc.) I continued to add each missing dll, one by one, until it worked.
This is thrown when
... the peer was not able to identify itself (for example; no certificate, the particular cipher suite being used does not support authentication, or no peer authentication was established during SSL handshaking) this exception is thrown.
Probably the cause of this exception (where is the stacktrace) will show you why this exception is thrown. Most likely the default keystore shipped with Java does not contain (and trust) the root certificate of the TTP that is being used.
The answer is to retrieve the root certificate (e.g. from your browsers SSL connection), import it into the cacerts
file and trust it using keytool
which is shipped by the Java JDK. Otherwise you will have to assign another trust store programmatically.
I had to do this in that order:
Install-Module MSOnline
Install-Module AzureAD
Import-Module AzureAD
The Java runtime you try to execute your program with is an earlier version than Java 7 which was the target you compile your program for.
For Ubuntu use
apt-get install openjdk-7-jdk
to get Java 7 as default. You may have to uninstall openjdk-6 first.
git stash pop
will get everything back in place
as suggested in the comments, you can use git stash branch newbranch
to apply the stash to a new branch, which is the same as running:
git checkout -b newbranch
git stash pop
Short answer: You can't.
Long answer: You can use the INFORMATION_SCHEMA to get the table definitions and use this to generate the necessary UPDATE statements dynamically. For example you could start with this:
SELECT TABLE_NAME, COLUMN_NAME
FROM INFORMATION_SCHEMA.COLUMNS
WHERE TABLE_SCHEMA = 'your_schema'
I'd try to avoid doing this though if at all possible.
You can pass -b option when you compile code via coffee-script under node.js. The compiled code will be the same as on coffeescript.org.
I ran into this issue building a site with Gatsby whose Link is built on top of Reach Router. It seems odd that this is a modification that has to be made rather than the default behaviour.
Anyway, I tried many of the solutions above and the only one that actually worked for me was:
document.getElementById("WhateverIdYouWantToScrollTo").scrollIntoView()
I put this in a useEffect but you could just as easily put it in componentDidMount or trigger it any other way you wanted to.
Not sure why window.scrollTo(0, 0) wouldn't work for me (and others).
There are two ways to approach this problem: numerically and symbolically.
To solve it numerically, you have to first encode it as a "runnable" function - stick a value in, get a value out. For example,
def my_function(x):
return 2*x + 6
It is quite possible to parse a string to automatically create such a function; say you parse 2x + 6
into a list, [6, 2]
(where the list index corresponds to the power of x - so 6*x^0 + 2*x^1). Then:
def makePoly(arr):
def fn(x):
return sum(c*x**p for p,c in enumerate(arr))
return fn
my_func = makePoly([6, 2])
my_func(3) # returns 12
You then need another function which repeatedly plugs an x-value into your function, looks at the difference between the result and what it wants to find, and tweaks its x-value to (hopefully) minimize the difference.
def dx(fn, x, delta=0.001):
return (fn(x+delta) - fn(x))/delta
def solve(fn, value, x=0.5, maxtries=1000, maxerr=0.00001):
for tries in xrange(maxtries):
err = fn(x) - value
if abs(err) < maxerr:
return x
slope = dx(fn, x)
x -= err/slope
raise ValueError('no solution found')
There are lots of potential problems here - finding a good starting x-value, assuming that the function actually has a solution (ie there are no real-valued answers to x^2 + 2 = 0), hitting the limits of computational accuracy, etc. But in this case, the error minimization function is suitable and we get a good result:
solve(my_func, 16) # returns (x =) 5.000000000000496
Note that this solution is not absolutely, exactly correct. If you need it to be perfect, or if you want to try solving families of equations analytically, you have to turn to a more complicated beast: a symbolic solver.
A symbolic solver, like Mathematica or Maple, is an expert system with a lot of built-in rules ("knowledge") about algebra, calculus, etc; it "knows" that the derivative of sin is cos, that the derivative of kx^p is kpx^(p-1), and so on. When you give it an equation, it tries to find a path, a set of rule-applications, from where it is (the equation) to where you want to be (the simplest possible form of the equation, which is hopefully the solution).
Your example equation is quite simple; a symbolic solution might look like:
=> LHS([6, 2]) RHS([16])
# rule: pull all coefficients into LHS
LHS, RHS = [lh-rh for lh,rh in izip_longest(LHS, RHS, 0)], [0]
=> LHS([-10,2]) RHS([0])
# rule: solve first-degree poly
if RHS==[0] and len(LHS)==2:
LHS, RHS = [0,1], [-LHS[0]/LHS[1]]
=> LHS([0,1]) RHS([5])
and there is your solution: x = 5.
I hope this gives the flavor of the idea; the details of implementation (finding a good, complete set of rules and deciding when each rule should be applied) can easily consume many man-years of effort.
Here is how you can pass, multiple commands & arguments in one YAML file with kubernetes:
# Write your commands here
command: ["/bin/sh", "-c"]
# Write your multiple arguments in args
args: ["/usr/local/bin/php /var/www/test.php & /usr/local/bin/php /var/www/vendor/api.php"]
Full containers block from yaml file:
containers:
- name: widc-cron # container name
image: widc-cron # custom docker image
imagePullPolicy: IfNotPresent # advisable to keep
# write your command here
command: ["/bin/sh", "-c"]
# You can declare multiple arguments here, like this example
args: ["/usr/local/bin/php /var/www/tools/test.php & /usr/local/bin/php /var/www/vendor/api.php"]
volumeMounts: # to mount files from config-map generator
- mountPath: /var/www/session/constants.inc.php
subPath: constants.inc.php
name: widc-constants
Here is representation of screen eclipse to make hierarachical.
Every canvas item is an object that Tkinter keeps track of. If you are clearing the screen by just drawing a black rectangle, then you effectively have created a memory leak -- eventually your program will crash due to the millions of items that have been drawn.
To clear a canvas, use the delete method. Give it the special parameter "all"
to delete all items on the canvas (the string "all"
" is a special tag that represents all items on the canvas):
canvas.delete("all")
If you want to delete only certain items on the canvas (such as foreground objects, while leaving the background objects on the display) you can assign tags to each item. Then, instead of "all"
, you could supply the name of a tag.
If you're creating a game, you probably don't need to delete and recreate items. For example, if you have an object that is moving across the screen, you can use the move or coords method to move the item.
The solutions is in fact
p{
white-space:normal;
}
You can change the break behaviors by modifying, word-break property
p{
word-break: break-all; // will break at end of line
}
break-all: Will break the string at the very end, breaking at the last word word-break: is more of pretty brake, will break nicely for example at ? point normal: same as word-break
Here's the code:
glPushMatrix();
glTranslatef(18,2,0);
glRotatef(angle, 0, 0, 0.7);
glColor3ub(0,255,255);
glutWireSphere(3,10,10);
glPopMatrix();
Because you send custom headers so your CORS request is not a simple request, so the browser first sends a preflight OPTIONS request to check that the server allows your request.
If you turn on CORS on the server then your code will work. You can also use JavaScript fetch instead (here)
let url='https://server.test-cors.org/server?enable=true&status=200&methods=POST&headers=My-First-Header,My-Second-Header';_x000D_
_x000D_
_x000D_
$.ajax({_x000D_
type: 'POST',_x000D_
url: url,_x000D_
headers: {_x000D_
"My-First-Header":"first value",_x000D_
"My-Second-Header":"second value"_x000D_
}_x000D_
}).done(function(data) {_x000D_
alert(data[0].request.httpMethod + ' was send - open chrome console> network to see it');_x000D_
});
_x000D_
<script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/3.3.1/jquery.min.js"></script>
_x000D_
Here is an example configuration which turns on CORS on nginx (nginx.conf file):
location ~ ^/index\.php(/|$) {_x000D_
..._x000D_
add_header 'Access-Control-Allow-Origin' "$http_origin" always;_x000D_
add_header 'Access-Control-Allow-Credentials' 'true' always;_x000D_
if ($request_method = OPTIONS) {_x000D_
add_header 'Access-Control-Allow-Origin' "$http_origin"; # DO NOT remove THIS LINES (doubled with outside 'if' above)_x000D_
add_header 'Access-Control-Allow-Credentials' 'true';_x000D_
add_header 'Access-Control-Max-Age' 1728000; # cache preflight value for 20 days_x000D_
add_header 'Access-Control-Allow-Methods' 'GET, POST, OPTIONS';_x000D_
add_header 'Access-Control-Allow-Headers' 'My-First-Header,My-Second-Header,Authorization,Content-Type,Accept,Origin';_x000D_
add_header 'Content-Length' 0;_x000D_
add_header 'Content-Type' 'text/plain charset=UTF-8';_x000D_
return 204;_x000D_
}_x000D_
}
_x000D_
Here is an example configuration which turns on CORS on Apache (.htaccess file)
# ------------------------------------------------------------------------------_x000D_
# | Cross-domain Ajax requests |_x000D_
# ------------------------------------------------------------------------------_x000D_
_x000D_
# Enable cross-origin Ajax requests._x000D_
# http://code.google.com/p/html5security/wiki/CrossOriginRequestSecurity_x000D_
# http://enable-cors.org/_x000D_
_x000D_
# <IfModule mod_headers.c>_x000D_
# Header set Access-Control-Allow-Origin "*"_x000D_
# </IfModule>_x000D_
_x000D_
#Header set Access-Control-Allow-Origin "http://example.com:3000"_x000D_
#Header always set Access-Control-Allow-Credentials "true"_x000D_
_x000D_
Header set Access-Control-Allow-Origin "*"_x000D_
Header always set Access-Control-Allow-Methods "POST, GET, OPTIONS, DELETE, PUT"_x000D_
Header always set Access-Control-Allow-Headers "My-First-Header,My-Second-Header,Authorization, content-type, csrf-token"
_x000D_
Use ThisWorkbook
which will refer to the original workbook which holds the code.
Alternatively at code start
Dim Wb As Workbook
Set Wb = ActiveWorkbook
sample code that activates all open books before returning to ThisWorkbook
Sub Test()
Dim Wb As Workbook
Dim Wb2 As Workbook
Set Wb = ThisWorkbook
For Each Wb2 In Application.Workbooks
Wb2.Activate
Next
Wb.Activate
End Sub
Always codes should be simple and easy to perform tasks for fast performance and for good reliability.
To add a page to a TabControl, the following code is enough.
If Tabcontrol1.Controls.Contains(TabPage1) Then
else
Tabcontrol1.Controls.Add(TabPage1)
End If
To remove a page from a TabControl, the following code is enough.
If Tabcontrol1.Controls.Contains(TabPage1) Then Tabcontrol1.Controls.Remove(TabPage1) End If
I wish to thank Stackoverflow.com for providing sincere help to programmers.
You can use the WebClient
Using System.Net;
WebClient client = new WebClient();
string downloadString = client.DownloadString("http://www.gooogle.com");
Naïve datetime
versus aware datetime
Default datetime
objects are said to be "naïve": they keep time information without the time zone information. Think about naïve datetime
as a relative number (ie: +4
) without a clear origin (in fact your origin will be common throughout your system boundary).
In contrast, think about aware datetime
as absolute numbers (ie: 8
) with a common origin for the whole world.
Without timezone information you cannot convert the "naive" datetime towards any non-naive time representation (where does +4
targets if we don't know from where to start ?). This is why you can't have a datetime.datetime.toutctimestamp()
method. (cf: http://bugs.python.org/issue1457227)
To check if your datetime
dt
is naïve, check dt.tzinfo
, if None
, then it's naïve:
datetime.now() ## DANGER: returns naïve datetime pointing on local time
datetime(1970, 1, 1) ## returns naïve datetime pointing on user given time
I have naïve datetimes, what can I do ?
You must make an assumption depending on your particular context:
The question you must ask yourself is: was your datetime
on UTC ? or was it local time ?
If you were using UTC (you are out of trouble):
import calendar
def dt2ts(dt):
"""Converts a datetime object to UTC timestamp
naive datetime will be considered UTC.
"""
return calendar.timegm(dt.utctimetuple())
If you were NOT using UTC, welcome to hell.
You have to make your datetime
non-naïve prior to using the former
function, by giving them back their intended timezone.
You'll need the name of the timezone and the information about if DST was in effect when producing the target naïve datetime (the last info about DST is required for cornercases):
import pytz ## pip install pytz
mytz = pytz.timezone('Europe/Amsterdam') ## Set your timezone
dt = mytz.normalize(mytz.localize(dt, is_dst=True)) ## Set is_dst accordingly
Consequences of not providing is_dst
:
Not using is_dst
will generate incorrect time (and UTC timestamp)
if target datetime was produced while a backward DST was put in place
(for instance changing DST time by removing one hour).
Providing incorrect is_dst
will of course generate incorrect
time (and UTC timestamp) only on DST overlap or holes. And, when
providing
also incorrect time, occuring in "holes" (time that never existed due
to forward shifting DST), is_dst
will give an interpretation of
how to consider this bogus time, and this is the only case where
.normalize(..)
will actually do something here, as it'll then
translate it as an actual valid time (changing the datetime AND the
DST object if required). Note that .normalize()
is not required
for having a correct UTC timestamp at the end, but is probably
recommended if you dislike the idea of having bogus times in your
variables, especially if you re-use this variable elsewhere.
and AVOID USING THE FOLLOWING: (cf: Datetime Timezone conversion using pytz)
dt = dt.replace(tzinfo=timezone('Europe/Amsterdam')) ## BAD !!
Why? because .replace()
replaces blindly the tzinfo
without
taking into account the target time and will choose a bad DST object.
Whereas .localize()
uses the target time and your is_dst
hint
to select the right DST object.
OLD incorrect answer (thanks @J.F.Sebastien for bringing this up):
Hopefully, it is quite easy to guess the timezone (your local origin) when you create your naive datetime
object as it is related to the system configuration that you would hopefully NOT change between the naive datetime object creation and the moment when you want to get the UTC timestamp. This trick can be used to give an imperfect question.
By using time.mktime
we can create an utc_mktime
:
def utc_mktime(utc_tuple):
"""Returns number of seconds elapsed since epoch
Note that no timezone are taken into consideration.
utc tuple must be: (year, month, day, hour, minute, second)
"""
if len(utc_tuple) == 6:
utc_tuple += (0, 0, 0)
return time.mktime(utc_tuple) - time.mktime((1970, 1, 1, 0, 0, 0, 0, 0, 0))
def datetime_to_timestamp(dt):
"""Converts a datetime object to UTC timestamp"""
return int(utc_mktime(dt.timetuple()))
You must make sure that your datetime
object is created on the same timezone than the one that has created your datetime
.
This last solution is incorrect because it makes the assumption that the UTC offset from now is the same than the UTC offset from EPOCH. Which is not the case for a lot of timezones (in specific moment of the year for the Daylight Saving Time (DST) offsets).
There's an even easier way:
if ($variable)
{
Write-Host "bar exist"
}
else
{
Write-Host "bar does not exists"
}
I like to go over a code the person actually wrote and have them explain it to me.
xsl:apply-templates
is usually (but not necessarily) used to process all or a subset of children of the current node with all applicable templates. This supports the recursiveness of XSLT application which is matching the (possible) recursiveness of the processed XML.
xsl:call-template
on the other hand is much more like a normal function call. You execute exactly one (named) template, usually with one or more parameters.
So I use xsl:apply-templates
if I want to intercept the processing of an interesting node and (usually) inject something into the output stream. A typical (simplified) example would be
<xsl:template match="foo">
<bar>
<xsl:apply-templates/>
</bar>
</xsl:template>
whereas with xsl:call-template
I typically solve problems like adding the text of some subnodes together, transforming select nodesets into text or other nodesets and the like - anything you would write a specialized, reusable function for.
As an additional remark to your specific question text:
<xsl:call-template name="nodes"/>
This calls a template which is named 'nodes':
<xsl:template name="nodes">...</xsl:template>
This is a different semantic than:
<xsl:apply-templates select="nodes"/>
...which applies all templates to all children of your current XML node whose name is 'nodes'.
Use global
keyword:
#Creating global variable
glob_var=0
def use():
#Accessing global variable
global glob_var
#Changing value of global variable
glob_var=2
def show():
#Showing value of global variable
print(glob_var)
if __name__=='__main__':
use()
show()
package com.concepttimes.java;
import java.util.ArrayList;
import java.util.Iterator;
import java.util.List;
public class IllegalStateExceptionDemo {
public static void main(String[] args) {
// TODO Auto-generated method stub
List al = new ArrayList();
al.add("Sachin");
al.add("Rahul");
al.add("saurav");
Iterator itr = al.iterator();
while (itr.hasNext()) {
itr.remove();
}
}
}
IllegalStateException signals that method has been invoked at the wrong time. In this below example, we can see that. remove() method is called at the same time element is being used in while loop.
Please refer to below link for more details. http://www.elitmuszone.com/elitmus/illegalstateexception-in-java/
Had the same problem in my IntelliJ 17 after adding fresh glassfish 4.1.
I had set my JAVA_HOME
environment variable as follow:
echo %JAVA_HOME%
C:\Java\jdk1.8.0_121\
Then opened %GLASSFISH_HOME%\glassfish\config\asenv.bat
And just added and the end of the file:
set AS_JAVA=%JAVA_HOME%
Then Glassfish started without problems.
This issue was actually being caused by NestedFragments. Basically most fragments we have extend a HostedFragment which in turn extends a CompatFragment. Having these nested fragments caused issues which eventually were solved by another developer on the project.
He was doing some low level stuff like bit switching to get this working so I'm not too sure of the actual final solution
You should not have to delete all profiles to fix this issue,
When looking at my device profiles in the Organizer I saw one of my profiles was not valid. I then went to the Developer Certificates, Identifiers & Profiles page and all profiles were active, green and looked good but when clicking edit on the one that showed as invalid on my device, I saw that the check box in the associated account was not checked even though Select All was checked. I checked the box to associate the profile with my certificate, downloaded the Profile and everything was fixed.
On your Profiles web page click "Edit"
You might see that there is no associated certificate even though "Select All" is checked.
L = ['L','O','L']
makeitastring = ''.join(map(str, L))
The simplest approach is to encapsulate the two values together into a type which has both the image and the file. Then build an ArrayList
of that and shuffle it.
That improves encapsulation as well, giving you the property that you'll always have the same number of files as images automatically.
An alternative if you really don't like that idea would be to write the shuffle code yourself (there are plenty of examples of a modified Fisher-Yates shuffle in Java, including several on Stack Overflow I suspect) and just operate on both lists at the same time. But I'd strongly recommend going with the "improve encapsulation" approach.
If you aren't on java 7, you can extract your exception handling to a method - that way you can at least minimize duplication
try {
// try something
}
catch(ExtendsRuntimeException e) { handleError(e); }
catch(Exception e) { handleError(e); }
I had this issue with a specific application and not the entire IIS site. In my case, access to the application directory was not the problem. Instead, I needed to give the application pool a recycle.
I think this was related to how the application was deployed and the IIS settings were set (done via scripts and a deployment agent).
You could use a negative look-ahead assertion:
^(?!tbd_).+
Or a negative look-behind assertion:
(^.{1,3}$|^.{4}(?<!tbd_).*)
Or just plain old character sets and alternations:
^([^t]|t($|[^b]|b($|[^d]|d($|[^_])))).*
The simplest modification (to the code in your question) is this:
Range("A" & Rows.Count).End(xlUp).Select
Selection.EntireRow.Delete
Which can be simplified to:
Range("A" & Rows.Count).End(xlUp).EntireRow.Delete
When a method was requested, it will have an array
. So simply check with count()
.
$m=['GET'=>$_GET,'POST'=>$_POST];
foreach($m as$k=>$v){
echo count($v)?
$k.' was requested.':null;
}
Here is another alternative answer to this issue. This extension method works quite well. This solves the issues of the string being shorter than the maximum length and also the maximum length being negative.
public static string Left( this string str, int length ) {
if (str == null)
return str;
return str.Substring(0, Math.Min(Math.Abs(length), str.Length));
}
Another solution would be to limit the length to be non-negative values, and just zero-out negative values.
public static string Left( this string str, int length ) {
if (str == null)
return str;
return str.Substring(0, Math.Min(Math.Max(0,length), str.Length));
}
The two calls have different meanings that have nothing to do with performance; the fact that it speeds up the execution time is (or might be) just a side effect. You should understand what each of them does and not blindly include them in every program because they look like an optimization.
ios_base::sync_with_stdio(false);
This disables the synchronization between the C and C++ standard streams. By default, all standard streams are synchronized, which in practice allows you to mix C- and C++-style I/O and get sensible and expected results. If you disable the synchronization, then C++ streams are allowed to have their own independent buffers, which makes mixing C- and C++-style I/O an adventure.
Also keep in mind that synchronized C++ streams are thread-safe (output from different threads may interleave, but you get no data races).
cin.tie(NULL);
This unties cin
from cout
. Tied streams ensure that one stream is flushed automatically before each I/O operation on the other stream.
By default cin
is tied to cout
to ensure a sensible user interaction. For example:
std::cout << "Enter name:";
std::cin >> name;
If cin
and cout
are tied, you can expect the output to be flushed (i.e., visible on the console) before the program prompts input from the user. If you untie the streams, the program might block waiting for the user to enter their name but the "Enter name" message is not yet visible (because cout
is buffered by default, output is flushed/displayed on the console only on demand or when the buffer is full).
So if you untie cin
from cout
, you must make sure to flush cout
manually every time you want to display something before expecting input on cin
.
In conclusion, know what each of them does, understand the consequences, and then decide if you really want or need the possible side effect of speed improvement.
Using tidyverse
df %>% tidyr::gather("id", "value", 1:4) %>%
ggplot(., aes(Xax, value))+
geom_point()+
geom_smooth(method = "lm", se=FALSE, color="black")+
facet_wrap(~id)
DATA
df<- read.table(text =c("
A B C G Xax
0.451 0.333 0.034 0.173 0.22
0.491 0.270 0.033 0.207 0.34
0.389 0.249 0.084 0.271 0.54
0.425 0.819 0.077 0.281 0.34
0.457 0.429 0.053 0.386 0.53
0.436 0.524 0.049 0.249 0.12
0.423 0.270 0.093 0.279 0.61
0.463 0.315 0.019 0.204 0.23"), header = T)
In my case Mac OS High Sierra 10.13.6
brew -v
OutPut-
Homebrew 2.2.2
Homebrew/homebrew-core (git revision 71aa; last commit 2020-01-07)
Homebrew/homebrew-cask (git revision 84f00; last commit 2020-01-07)