workmad3 is apparently out of date, at least for current gpg, as the --allow-secret-key-import
is now obsolete and does nothing.
What happened to me was that I failed to export properly. Just doing gpg --export
is not adequate, as it only exports the public keys. When exporting keys, you have to do
gpg --export-secret-keys >keyfile
I had the same problem of "gpg: keyserver timed out" with a couple of different servers. Finally, it turned out that I didn't need to do that manually at all. On a Debian system, the simple solution which fixed it was just (as root or precede with sudo):
aptitude install debian-archive-keyring
In case it is some other keyring you need, check out
apt-cache search keyring | grep debian
My squeeze system shows all these:
debian-archive-keyring - GnuPG archive keys of the Debian archive
debian-edu-archive-keyring - GnuPG archive keys of the Debian Edu archive
debian-keyring - GnuPG keys of Debian Developers
debian-ports-archive-keyring - GnuPG archive keys of the debian-ports archive
emdebian-archive-keyring - GnuPG archive keys for the emdebian repository
The option --list-packets
parses pgp data from a file and outputs its structure - in a very technical way, though. When parsing a public key, you can easily extract the user ids and the key ids of the signatures.
Be wary that this command only parses the data format, it does no validation of signatures or similar things.
This worked for me
$brew install gnupg
this ended up working for me:
gpg -a --export-secret-keys > exportedKeyFilename.asc
you can name keyfilename.asc by any name as long as you keep on the .asc extension.
this command copies all secret-keys on a user's computer to keyfilename.asc in the working directory of where the command was called.
To Export just 1 specific secret key instead of all of them:
gpg -a --export-secret-keys keyIDNumber > exportedKeyFilename.asc
keyIDNumber is the number of the key id for the desired key you are trying to export.
I have solved this problem, try to use root privileges, such as sudo gpg ... I think that gpg elevated without permissions does not refer to file permissions, but system
There is a similar problem.it is a tomcat digital signature.
$ gpg --verify apache-tomcat-9.0.16-windows-x64.zip.asc apache-tomcat-9.0.16-windows-
x64.zip
gpg: Signature made 2019?02? 5? 0:32:50
gpg: using RSA key A9C5DF4D22E99998D9875A5110C01C5A2F6059E7
gpg: Can't check signature: No public key
but then I use the RSA key it provided to receive the public key to verify.
$ gpg --receive-keys A9C5DF4D22E99998D9875A5110C01C5A2F6059E7
gpg: key 10C01C5A2F6059E7: 38 signatures not checked due to missing keys
gpg: key 10C01C5A2F6059E7: public key "Mark E D Thomas <[email protected]>" imported
gpg: no ultimately trusted keys found
gpg: Total number processed: 1
gpg: imported: 1
Then successfully.
$ gpg --verify apache-tomcat-9.0.16-windows-x64.zip.asc
gpg: assuming signed data in 'apache-tomcat-9.0.16-windows-x64.zip'
gpg: Signature made 2019?02? 5? 0:32:50
gpg: using RSA key A9C5DF4D22E99998D9875A5110C01C5A2F6059E7
gpg: Good signature from "Mark E D Thomas <[email protected]>" [unknown]
gpg: WARNING: This key is not certified with a trusted signature!
gpg: There is no indication that the signature belongs to the owner.
Primary key fingerprint: A9C5 DF4D 22E9 9998 D987 5A51 10C0 1C5A 2F60 59E7
I added this in my project just because where I'm using it is a high chance of it being used in loops, in a project hosted online hence I didn't want any crashes if I could manage it. The length fits a column I have. It's C#7
Just a one line:
public static string SubStringN(this string Message, int Len = 499) => !String.IsNullOrEmpty(Message) ? (Message.Length >= Len ? Message.Substring(0, Len) : Message) : "";
Is correct?
<script>
$( "#box" ).one( "click", function() {
$( this ).css( "width", "+=200" );
});
</script>
For those who is using primefaces, just do:
selenium.waitForCondition("selenium.browserbot.getCurrentWindow().$.active==0", defaultWaitingPeriod);
When you try to merge one commit with a commit that can be reached by following the first commit’s history, Git simplifies things by moving the pointer forward because there is no divergent work to merge together – this is called a “fast-forward.”
For more : http://git-scm.com/book/en/v2/Git-Branching-Basic-Branching-and-Merging
In another way,
If Master has not diverged, instead of creating a new commit, git will just point master to the latest commit of the feature branch. This is a “fast forward.”
There won't be any "merge commit" in fast-forwarding merge.
its pretty simple
Date someDate = new DateTime();
string timeOfDay = someDate.ToString("hh:mm tt");
// hh - shows hour and mm - shows minute - tt - shows AM or PM
You can use the Content property on pretty much all visual WPF controls to access the stuff inside them. There's a heirarchy of classes that the controls belong to, and any descendants of ContentControl will work in this way.
$files = glob($_SERVER["DOCUMENT_ROOT"]."/myFolder/*");
The recommended solution to this is the extensible enum pattern.
This involves creating an interface and using that where you currently use the enum. Then make the enum implement the interface. You can add more constants by making that new enum also extend the interface.
I made good experiences with Scala.
I use the simple build tool (sbt: http://code.google.com/p/simple-build-tool/) with the Android-Plugin (http://github.com/jberkel/android-plugin)
In case you are using Silex add the Symfony Asset as a dependency:
composer require symfony/asset
Then you may register Asset Service Provider:
$app->register(new Silex\Provider\AssetServiceProvider(), array(
'assets.version' => 'v1',
'assets.version_format' => '%s?version=%s',
'assets.named_packages' => array(
'css' => array(
'version' => 'css2',
'base_path' => __DIR__.'/../public_html/resources/css'
),
'images' => array(
'base_urls' => array(
'https://img.example.com'
)
),
),
));
Then in your Twig template file in head section:
<!DOCTYPE html>
<html>
<head>
<meta charset="UTF-8">
{% block head %}
<link rel="stylesheet" href="{{ asset('style.css') }}" />
{% endblock %}
</head>
<body>
</body>
</html>
Use the @ViewChildren decorator combined with QueryList. Both of these are from "@angular/core"
@ViewChildren(CustomComponent) customComponentChildren: QueryList<CustomComponent>;
Doing something with each child looks like:
this.customComponentChildren.forEach((child) => { child.stuff = 'y' })
There is further documentation to be had at angular.io, specifically: https://angular.io/docs/ts/latest/cookbook/component-communication.html#!#sts=Parent%20calls%20a%20ViewChild
Even if it is really discouraged to use merge cells in Excel (use Center Across Selection
for instance if needed), the cell that "contains" the value is the one on the top left (at least, that's a way to express it).
Hence, you can get the value of merged cells in range B4:B11
in several ways:
Range("B4").Value
Range("B4:B11").Cells(1).Value
Range("B4:B11").Cells(1,1).Value
You can also note that all the other cells have no value in them. While debugging, you can see that the value is empty
.
Also note that Range("B4:B11").Value
won't work (raises an execution error number 13 if you try to Debug.Print
it) because it returns an array.
A lot of other answers are focusing on a pattern that does work, but their explanations aren't really very thorough as to why your current code doesn't work.
Your code, for reference:
function funcName() {
alert("test");
}
var func = funcName();
var run = setInterval("func",10000)
Let's break this up into chunks. Your function funcName
is fine. Note that when you call funcName
(in other words, you run it) you will be alerting "test"
. But notice that funcName()
-- the parentheses mean to "call" or "run" the function -- doesn't actually return a value. When a function doesn't have a return value, it defaults to a value known as undefined
.
When you call a function, you append its argument list to the end in parentheses. When you don't have any arguments to pass the function, you just add empty parentheses, like funcName()
. But when you want to refer to the function itself, and not call it, you don't need the parentheses because the parentheses indicate to run it.
So, when you say:
var func = funcName();
You are actually declaring a variable func
that has a value of funcName()
. But notice the parentheses. funcName()
is actually the return value of funcName
. As I said above, since funcName
doesn't actually return any value, it defaults to undefined
. So, in other words, your variable func
actually will have the value undefined
.
Then you have this line:
var run = setInterval("func",10000)
The function setInterval
takes two arguments. The first is the function to be ran every so often, and the second is the number of milliseconds between each time the function is ran.
However, the first argument really should be a function, not a string. If it is a string, then the JavaScript engine will use eval
on that string instead. So, in other words, your setInterval is running the following JavaScript code:
func
// 10 seconds later....
func
// and so on
However, func
is just a variable (with the value undefined
, but that's sort of irrelevant). So every ten seconds, the JS engine evaluates the variable func
and returns undefined
. But this doesn't really do anything. I mean, it technically is being evaluated every 10 seconds, but you're not going to see any effects from that.
The solution is to give setInterval
a function to run instead of a string. So, in this case:
var run = setInterval(funcName, 10000);
Notice that I didn't give it func
. This is because func
is not a function in your code; it's the value undefined
, because you assigned it funcName()
. Like I said above, funcName()
will call the function funcName
and return the return value of the function. Since funcName
doesn't return anything, this defaults to undefined
. I know I've said that several times now, but it really is a very important concept: when you see funcName()
, you should think "the return value of funcName
". When you want to refer to a function itself, like a separate entity, you should leave off the parentheses so you don't call it: funcName
.
So, another solution for your code would be:
var func = funcName;
var run = setInterval(func, 10000);
However, that's a bit redundant: why use func
instead of funcName
?
Or you can stay as true as possible to the original code by modifying two bits:
var func = funcName;
var run = setInterval("func()", 10000);
In this case, the JS engine will evaluate func()
every ten seconds. In other words, it will alert "test"
every ten seconds. However, as the famous phrase goes, eval
is evil, so you should try to avoid it whenever possible.
Another twist on this code is to use an anonymous function. In other words, a function that doesn't have a name -- you just drop it in the code because you don't care what it's called.
setInterval(function () {
alert("test");
}, 10000);
In this case, since I don't care what the function is called, I just leave a generic, unnamed (anonymous) function there.
Step 1: You need to append one blank option
with a blank value in your select tag.
Step 2: Add data-placeholder
attribute in select tag with a placeholder value
HTML
<select class="select2" data-placeholder='--Select--'>
<option value=''>--Select--</option>
<option value='1'>Option 1</option>
<option value='2'>Option 2</option>
<option value='3'>Option 3</option>
</select>
Jquery
$('.select2').select2({
placeholder: $(this).data('placeholder')
});
OR
$('.select2').select2({
placeholder: 'Custom placeholder text'
});
Here's a pure jQuery solution, but it's rather messy:
var div_height = $(this).height();
var vertical_div_top_position = $(this).offset().top;
var lastchild_height = $(this).children('p:last-child').height();
var vertical_lastchild_top_position = $(this).children('p:last-child').offset().top;
var vertical_lastchild_bottom_position = lastchild_height + vertical_lastchild_top_position;
var real_height = vertical_lastchild_bottom_position - vertical_div_top_position;
if (real_height > div_height){
//overflow div
}
If you are confused what to do, just refer to the manual of session_destroy() function:
http://php.net/manual/en/function.session-destroy.php
There you can find some more features of session_destroy().
The Problem might be from the driver name for example instead of DRIVER={MySQL ODBC 5.3 Driver}
try DRIVER={MySQL ODBC 5.3 Unicode Driver}
you can see the name of the driver from administration tool
Some issues:
It might be useful to note (for *nix platforms): some types of global git configuration/information are stored in /usr/share/git-core/
, such as git autocompletion scripts and the following (default) hooks:
Each of these can contain their own set of commands to execute, at the time described by their respective filenames.
In addition to bcrypt and PBKDF2 mentioned in other answers, I would recommend looking at scrypt
MD5 and SHA-1 are not recommended as they are relatively fast thus using "rent per hour" distributed computing (e.g. EC2) or a modern high end GPU one can "crack" passwords using brute force / dictionary attacks in relatively low costs and reasonable time.
If you must use them, then at least iterate the algorithm a predefined significant amount of times (1000+).
See here for more: https://security.stackexchange.com/questions/211/how-to-securely-hash-passwords
And here: http://codahale.com/how-to-safely-store-a-password/ (criticizes SHA family, MD5 etc for password hashing purposes)
Javascript Function
function AddToCart(id) {
$.ajax({
url: '@Url.Action("AddToCart", "ControllerName")',
type: 'GET',
dataType: 'json',
cache: false,
data: { 'id': id },
success: function (results) {
alert(results)
},
error: function () {
alert('Error occured');
}
});
}
Controller Method to call
[HttpGet]
public JsonResult AddToCart(string id)
{
string newId = id;
return Json(newId, JsonRequestBehavior.AllowGet);
}
Simply use :
echo "password" | sudo -S mount -t vfat /dev/sda1 /media/usb/;
if [ $? -eq 0 ]; then
echo -e '[ ok ] Usb key mounted'
else
echo -e '[warn] The USB key is not mounted'
fi
This code is working for me, and its in /etc/init.d/myscriptbash.sh
i have solve my same problem
i update my android studio, and i choose not to import my setting from my previous version than that problem appear.
than i realize that i have 2 AndroidStudio folder on my windows account (.AndroidStudio and .AndroidStudio1.2) and on my new .AndroidStudio1.2 folder there are no other.xml file.
than i copy other.xml file from C:\Users\my windows account name.AndroidStudio\config\options to C:\Users\my windows account name.AndroidStudio1.2\config\options
and that how i solve my problem.
You could use :
int a = 12;
if (a>0 || a<0){
cout << "Your text"<<endl;
}
I'm pretty sure it works.
Here is the actual code that does it...
$(document).ready(function()
{
var oTable = $('#myTable').dataTable();
// Sort immediately with column 2 (at position 1 in the array (base 0). More could be sorted with additional array elements
oTable.fnSort( [ [1,'asc'] ] );
// And to sort another column descending (at position 2 in the array (base 0).
oTable.fnSort( [ [2,'desc'] ] );
} );
To not have the column highlighted, modify the CSS like so:
table.dataTable tr.odd td.sorting_1 { background-color: transparent; }
table.dataTable tr.even td.sorting_1 { background-color: transparent; }
Yes, it is used all the time for testing. It is very likely that the testing framework uses .equals() for comparisons such as these.
Below is a link explaining the "string equality mistake". Essentially, strings in Java are objects, and when you compare object equality, typically they are compared based on memory address, and not by content. Because of this, two strings won't occupy the same address, even if their content is identical, so they won't match correctly, even though they look the same when printed.
http://blog.enrii.com/2006/03/15/java-string-equality-common-mistake/
Put a \
at the end of your line or enclose the statement in parens ( .. )
. From IBM:
b = ((i1 < 20) and
(i2 < 30) and
(i3 < 40))
or
b = (i1 < 20) and \
(i2 < 30) and \
(i3 < 40)
For non-preemptive system,
waitingTime = startTime - arrivalTime
turnaroundTime = burstTime + waitingTime = finishTime- arrivalTime
startTime = Time at which the process started executing
finishTime = Time at which the process finished executing
You can keep track of the current time elapsed in the system(timeElapsed
). Assign all processors to a process in the beginning, and execute until the shortest process is done executing. Then assign this processor which is free to the next process in the queue. Do this until the queue is empty and all processes are done executing. Also, whenever a process starts executing, recored its startTime
, when finishes, record its finishTime
(both same as timeElapsed
). That way you can calculate what you need.
After wrestling a lot, found an uncomplicated solution for Mac. Hope this will help.
Leave it to upgrade.
Then go to application, right click on chrome app and open package contents.
Navigate further as /Applications/Google Chrome old.app/Contents/Frameworks/Google Chrome Framework.framework/Versions
You will find a current
folder. Delete this :)
Restart chrome and enjoy..
Here is the solution without scripting and no external jars like ant-conrib:
The trick is to use ANT's resources:
<loadresource property="propB">
<propertyresource name="propA"/>
<filterchain>
<tokenfilter>
<filetokenizer/>
<replacestring from=" " to="_"/>
</tokenfilter>
</filterchain>
</loadresource>
This one will replace all " " in propA by "_" and place the result in propB. "filetokenizer" treats the whole input stream (our property) as one token and appies the string replacement on it.
You can do other fancy transformations using other tokenfilters: http://ant.apache.org/manual/Types/filterchain.html
When using Docker Compose, simply attach a named volume, for example:
version: '2'
services:
db:
image: mysql:5.6
volumes:
- db_data:/var/lib/mysql:rw
environment:
MYSQL_ROOT_PASSWORD: root
volumes:
db_data:
Yes, remove the trailing /
and (at least in ubuntu 11.04) all the paths given must be relative or full path. You can't mix absolute and relative paths in the same command.
sudo tar -czvf 2011.10.24.tar.gz ./start-directory --exclude "home/user/start-directory/logs"
will not exclude logs directory but
sudo tar -czvf 2011.10.24.tar.gz ./start-directory --exclude "./start-directory/logs"
will work
Well here is the short method to check whether the string is empty or not.
$input; //Assuming to be the string
if(strlen($input)==0){
return false;//if the string is empty
}
else{
return true; //if the string is not empty
}
SSRS will not accept duplicated columns so ensure that your query or store procedure is returning unique column names.
The .bak file from SQL Server is specific to that database dialect, and not compatible with MySQL.
Try using etlalchemy to migrate your SQL Server database into MySQL. It is an open-sourced tool that I created to facilitate easy migrations between different RDBMS's.
Quick installation and examples are provided here on the github page, and a more detailed explanation of the project's origins can be found here.
you can do like this also
long[,] arr = new long[4, 4] { { 0, 0, 0, 0 }, { 1, 1, 1, 1 }, { 0, 0, 0, 0 }, { 1, 1, 1, 1 }};
for (int i = 0; i < arr.GetLength(0); i++)
{
for (int j = 0; j < arr.GetLength(1); j++)
{
Console.Write(arr[i,j]+" ");
}
Console.WriteLine();
}
Guzzle implements PSR-7. That means that it will by default store the body of a message in a Stream that uses PHP temp streams. To retrieve all the data, you can use casting operator:
$contents = (string) $response->getBody();
You can also do it with
$contents = $response->getBody()->getContents();
The difference between the two approaches is that getContents
returns the remaining contents, so that a second call returns nothing unless you seek the position of the stream with rewind
or seek
.
$stream = $response->getBody();
$contents = $stream->getContents(); // returns all the contents
$contents = $stream->getContents(); // empty string
$stream->rewind(); // Seek to the beginning
$contents = $stream->getContents(); // returns all the contents
Instead, usings PHP's string casting operations, it will reads all the data from the stream from the beginning until the end is reached.
$contents = (string) $response->getBody(); // returns all the contents
$contents = (string) $response->getBody(); // returns all the contents
Documentation: http://docs.guzzlephp.org/en/latest/psr7.html#responses
For the Android library projects, I do it as in the attached screenshot:
Right click the project, select Properties->Android and in the library section click Add. From here you can select the available libraries.
If you are importing a jar file, then importing them as jar or external jar, as other posters posted would work. I prefer to copy/paste jar file in the libs folder (create one if it doesn't exist) and then import as jar.
Use
[A-Z]?
to make the letter optional. {1}
is redundant. (Of course you could also write [A-Z]{0,1}
which would mean the same, but that's what the ?
is there for.)
You could improve your regex to
^([0-9]{5})+\s+([A-Z]?)\s+([A-Z])([0-9]{3})([0-9]{3})([A-Z]{3})([A-Z]{3})\s+([A-Z])[0-9]{3}([0-9]{4})([0-9]{2})([0-9]{2})
And, since in most regex dialects, \d
is the same as [0-9]
:
^(\d{5})+\s+([A-Z]?)\s+([A-Z])(\d{3})(\d{3})([A-Z]{3})([A-Z]{3})\s+([A-Z])\d{3}(\d{4})(\d{2})(\d{2})
But: do you really need 11 separate capturing groups? And if so, why don't you capture the fourth-to-last group of digits?
A unique constraint can't be over 8000 bytes per row and will only use the first 900 bytes even then so the safest maximum size for your keys would be:
create table [misc_info]
(
[id] INTEGER PRIMARY KEY IDENTITY NOT NULL,
[key] nvarchar(450) UNIQUE NOT NULL,
[value] nvarchar(max) NOT NULL
)
i.e. the key can't be over 450 characters. If you can switch to varchar
instead of nvarchar
(e.g. if you don't need to store characters from more than one codepage) then that could increase to 900 characters.
Unless the writer of the executable has specifically provided a way for you to display a list of all the command line switches that it offers, then there is no way of doing this.
As Marcin suggests, the typical switches for displaying all of the options are either /?
or /help
(some applications might prefer the Unix-style syntax, -?
and -help
, respectively). But those are just a common convention.
If those don't work, you're out of luck. You'll need to check the documentation for the application, or perhaps try decompiling the executable (if you know what you're looking for).
This situation occured if there are object in repository, which creates by current transaction.
Simple scenario:
Same thing when adding same files from two working copies.
You can do this with map()
var arrOfObj = [{_x000D_
name: 'eve'_x000D_
}, {_x000D_
name: 'john'_x000D_
}, {_x000D_
name: 'jane'_x000D_
}];_x000D_
_x000D_
var result = arrOfObj.map(function(o) {_x000D_
o.isActive = true;_x000D_
return o;_x000D_
})_x000D_
_x000D_
console.log(result)
_x000D_
If you want to keep original array you can clone objects with Object.assign()
var arrOfObj = [{_x000D_
name: 'eve'_x000D_
}, {_x000D_
name: 'john'_x000D_
}, {_x000D_
name: 'jane'_x000D_
}];_x000D_
_x000D_
var result = arrOfObj.map(function(el) {_x000D_
var o = Object.assign({}, el);_x000D_
o.isActive = true;_x000D_
return o;_x000D_
})_x000D_
_x000D_
console.log(arrOfObj);_x000D_
console.log(result);
_x000D_
Building on the examples above I thought I'd throw in a way of transparently binding a controller variable to a service variable.
In the example below changes to the Controller $scope.count
variable will automatically be reflected in the Service count
variable.
In production we're actually using the this binding to update an id on a service which then asynchronously fetches data and updates its service vars. Further binding that means that controllers automagically get updated when the service updates itself.
The code below can be seen working at http://jsfiddle.net/xuUHS/163/
View:
<div ng-controller="ServiceCtrl">
<p> This is my countService variable : {{count}}</p>
<input type="number" ng-model="count">
<p> This is my updated after click variable : {{countS}}</p>
<button ng-click="clickC()" >Controller ++ </button>
<button ng-click="chkC()" >Check Controller Count</button>
</br>
<button ng-click="clickS()" >Service ++ </button>
<button ng-click="chkS()" >Check Service Count</button>
</div>
Service/Controller:
var app = angular.module('myApp', []);
app.service('testService', function(){
var count = 10;
function incrementCount() {
count++;
return count;
};
function getCount() { return count; }
return {
get count() { return count },
set count(val) {
count = val;
},
getCount: getCount,
incrementCount: incrementCount
}
});
function ServiceCtrl($scope, testService)
{
Object.defineProperty($scope, 'count', {
get: function() { return testService.count; },
set: function(val) { testService.count = val; },
});
$scope.clickC = function () {
$scope.count++;
};
$scope.chkC = function () {
alert($scope.count);
};
$scope.clickS = function () {
++testService.count;
};
$scope.chkS = function () {
alert(testService.count);
};
}
Pointing to Best Practices for Using Strings in the .NET Framework:
StringComparison.Ordinal
or StringComparison.OrdinalIgnoreCase
for comparisons as your safe default for culture-agnostic string matching.StringComparison.Ordinal
or StringComparison.OrdinalIgnoreCase
for better performance.StringComparison.Ordinal
or StringComparison.OrdinalIgnoreCase
values instead of string operations based on CultureInfo.InvariantCulture
when the comparison is linguistically irrelevant (symbolic, for example).And finally:
StringComparison.InvariantCulture
in most cases. One of the few exceptions is when you are persisting linguistically meaningful but culturally agnostic data.A bit old, but I was still getting the same SettingWithCopyWarning. Here was my solution:
df.loc[:, 'quantity'] = df['quantity'] * -1
Anti-Usage:
One major problem with excessive singleton usage is that the pattern prevents easy extension and swapping of alternate implementations. The class-name is hard coded wherever the singleton is used.
In Tomcat 8 you can also use the rewrite-valve
RewriteCond %{REQUEST_URI} ^/$
RewriteRule ^/(.*)$ /somethingelse/index.jsp
To setup the rewrite-valve look here:
http://tonyjunkes.com/blog/a-brief-look-at-the-rewrite-valve-in-tomcat-8/
There is a (somewhat) related question on StackOverflow:
Here the problem was that an array of shape (nx,ny,1) is still considered a 3D array, and must be squeeze
d or sliced into a 2D array.
More generally, the reason for the Exception
TypeError: Invalid dimensions for image data
is shown here: matplotlib.pyplot.imshow()
needs a 2D array, or a 3D array with the third dimension being of shape 3 or 4!
You can easily check this with (these checks are done by imshow
, this function is only meant to give a more specific message in case it's not a valid input):
from __future__ import print_function
import numpy as np
def valid_imshow_data(data):
data = np.asarray(data)
if data.ndim == 2:
return True
elif data.ndim == 3:
if 3 <= data.shape[2] <= 4:
return True
else:
print('The "data" has 3 dimensions but the last dimension '
'must have a length of 3 (RGB) or 4 (RGBA), not "{}".'
''.format(data.shape[2]))
return False
else:
print('To visualize an image the data must be 2 dimensional or '
'3 dimensional, not "{}".'
''.format(data.ndim))
return False
In your case:
>>> new_SN_map = np.array([1,2,3])
>>> valid_imshow_data(new_SN_map)
To visualize an image the data must be 2 dimensional or 3 dimensional, not "1".
False
The np.asarray
is what is done internally by matplotlib.pyplot.imshow
so it's generally best you do it too. If you have a numpy array it's obsolete but if not (for example a list
) it's necessary.
In your specific case you got a 1D array, so you need to add a dimension with np.expand_dims()
import matplotlib.pyplot as plt
a = np.array([1,2,3,4,5])
a = np.expand_dims(a, axis=0) # or axis=1
plt.imshow(a)
plt.show()
or just use something that accepts 1D arrays like plot
:
a = np.array([1,2,3,4,5])
plt.plot(a)
plt.show()
Eval is used to bind to an UI item that is setup to be read-only (eg: a label or a read-only text box), i.e., Eval is used for one way binding - for reading from a database into a UI field.
It is generally used for late-bound data (not known from start) and usually bound to the smallest part of the data-bound control that contains a whole record. The Eval method takes the name of a data field and returns a string containing the value of that field from the current record in the data source. You can supply an optional second parameter to specify a format for the returned string. The string format parameter uses the syntax defined for the Format method of the String class.
The same way you declare any other variable, just use the bit
type:
DECLARE @MyVar bit
Set @MyVar = 1 /* True */
Set @MyVar = 0 /* False */
SELECT * FROM [MyTable] WHERE MyBitColumn = @MyVar
PYTHONPATH ends up in sys.path, which you can modify at runtime.
import sys
sys.path += ["whatever"]
Because ISO 8601 allows many variations of optional colons and dashes being present, basically CCYY-MM-DDThh:mm:ss[Z|(+|-)hh:mm]
. If you want to use strptime, you need to strip out those variations first.
The goal is to generate a UTC datetime object.
If you just want a basic case that work for UTC with the Z suffix like 2016-06-29T19:36:29.3453Z
:
datetime.datetime.strptime(timestamp.translate(None, ':-'), "%Y%m%dT%H%M%S.%fZ")
If you want to handle timezone offsets like 2016-06-29T19:36:29.3453-0400
or 2008-09-03T20:56:35.450686+05:00
use the following. These will convert all variations into something without variable delimiters like 20080903T205635.450686+0500
making it more consistent/easier to parse.
import re
# This regex removes all colons and all
# dashes EXCEPT for the dash indicating + or - utc offset for the timezone
conformed_timestamp = re.sub(r"[:]|([-](?!((\d{2}[:]\d{2})|(\d{4}))$))", '', timestamp)
datetime.datetime.strptime(conformed_timestamp, "%Y%m%dT%H%M%S.%f%z" )
If your system does not support the %z
strptime directive (you see something like ValueError: 'z' is a bad directive in format '%Y%m%dT%H%M%S.%f%z'
) then you need to manually offset the time from Z
(UTC). Note %z
may not work on your system in Python versions < 3 as it depended on the C library support which varies across system/Python build type (i.e., Jython, Cython, etc.).
import re
import datetime
# This regex removes all colons and all
# dashes EXCEPT for the dash indicating + or - utc offset for the timezone
conformed_timestamp = re.sub(r"[:]|([-](?!((\d{2}[:]\d{2})|(\d{4}))$))", '', timestamp)
# Split on the offset to remove it. Use a capture group to keep the delimiter
split_timestamp = re.split(r"([+|-])",conformed_timestamp)
main_timestamp = split_timestamp[0]
if len(split_timestamp) == 3:
sign = split_timestamp[1]
offset = split_timestamp[2]
else:
sign = None
offset = None
# Generate the datetime object without the offset at UTC time
output_datetime = datetime.datetime.strptime(main_timestamp +"Z", "%Y%m%dT%H%M%S.%fZ" )
if offset:
# Create timedelta based on offset
offset_delta = datetime.timedelta(hours=int(sign+offset[:-2]), minutes=int(sign+offset[-2:]))
# Offset datetime with timedelta
output_datetime = output_datetime + offset_delta
You are setting your cron to run on 10th minute in every hour.
To set it to every 5 mins
change to */5 * * * * /usr/bin/php /mydomain.in/cronmail.php > /dev/null 2>&1
It also works if you change the content type
<form method="POST"
action="http://localhost:8080/cms/customer/create_customer"
id="frmRegister" name="frmRegister"
enctype="application/x-www-form-urlencoded">
In the controller also add the header value as follows:
@RequestMapping(value = "/create_customer", method = RequestMethod.POST, headers = "Content-Type=application/x-www-form-urlencoded")
There aren't many JavaScript decoders.
There is one at http://www.webqr.com/index.html
The easiest way is to run ZXing or similar on your server. You can then POST the image and get the decoded result back in the response.
A technique I use is something like the following. Define a global variable that you can use for one or multiple try catch blocks depending on what you're trying to debug and use the following structure:
if(!GlobalTestingBool)
{
try
{
SomeErrorProneMethod();
}
catch (...)
{
// ... Error handling ...
}
}
else
{
SomeErrorProneMethod();
}
I find this gives me a bit more flexibility in terms of testing because there are still some exceptions I don't want the IDE to break on.
You can get column type of DataTable with DataType attribute of datatable column like below:
var type = dt.Columns[0].DataType
dt : DataTable object.
0 : DataTable column index.
Hope It Helps
Ty :)
Try out this simple solution, it worked for me
app.get('/', function(req, res){
res.render('index.html')
});
Sure you can use Html.EditorFor. But if you want to use TextBoxFor and use format from DisplayFormat attribute you can use it in this way:
@Html.TextBoxFor(model => model.dtArrivalDate, ModelMetadata.FromLambdaExpression(model => model.dtArrivalDate, ViewData).EditFormatString)
or create next extension:
public static class HtmlExtensions
{
public static MvcHtmlString TextBoxWithFormatFor<TModel, TProperty>(this HtmlHelper<TModel> htmlHelper, Expression<Func<TModel, TProperty>> expression, object htmlAttributes)
{
return htmlHelper.TextBoxFor(expression, ModelMetadata.FromLambdaExpression(expression, htmlHelper.ViewData).EditFormatString, htmlAttributes);
}
}
I am using this on PHP 7.2.x, it's working fine for me:
public function make_hash($userStr){
try{
/**
* Used and tested on PHP 7.2x, Salt has been removed manually, it is now added by PHP
*/
return password_hash($userStr, PASSWORD_BCRYPT);
}catch(Exception $exc){
$this->tempVar = $exc->getMessage();
return false;
}
}
and then authenticate the hash with the following function:
public function varify_user($userStr,$hash){
try{
if (password_verify($userStr, $hash)) {
return true;
}
else {
return false;
}
}catch(Exception $exc){
$this->tempVar = $exc->getMessage();
return false;
}
}
Example:
//create hash from user string
$user_password = $obj->make_hash2($user_key);
and to authenticate this hash use the following code:
if($obj->varify_user($key, $user_key)){
//this is correct, you can proceed with
}
That's all.
Yes you can - see ConfigurationManager
The ConfigurationManager class includes members that enable you to perform the following tasks:
- Read and write configuration files as a whole.
Learn to use the docs, they should be your first port-of call for a question like this.
For someone needs to bring the outer this
inside as if it's an arrow function.
(function f() {
this.emit("...");
setTimeout(f.bind(this), 1000);
}).bind(this)();
If the above producing garbage bothers you, you can make a closure instead.
(that => {
(function f() {
that.emit("...");
setTimeout(f, 1000);
})();
})(this);
Or maybe consider using the @autobind
decorator depending on your code.
If you want the dot or other characters with a special meaning in regexes to be a normal character, you have to escape it with a backslash. Since regexes in Java are normal Java strings, you need to escape the backslash itself, so you need two backslashes e.g. \\.
/* Tested on Google Chrome */
$("input[type=file]").bind("change", function() {
var selected_file_name = $(this).val();
if ( selected_file_name.length > 0 ) {
/* Some file selected */
}
else {
/* No file selected or cancel/close
dialog button clicked */
/* If user has select a file before,
when they submit, it will treated as
no file selected */
}
});
Is there a step missing?
Yes. You need to create the directory:
mkdir ${HOME}/.ssh
Additionally, SSH requires you to set the permissions so that only you (the owner) can access anything in ~/.ssh:
% chmod 700 ~/.ssh
Should the
.ssh
dir be generated when I use thessh-keygen
command?
No. This command generates an SSH key pair but will fail if it cannot write to the required directory:
% ssh-keygen
Generating public/private rsa key pair.
Enter file in which to save the key (/Users/xxx/.ssh/id_rsa): /Users/tmp/does_not_exist
Enter passphrase (empty for no passphrase):
Enter same passphrase again:
open /Users/tmp/does_not_exist failed: No such file or directory.
Saving the key failed: /Users/tmp/does_not_exist.
Once you've created your keys, you should also restrict who can read those key files to just yourself:
% chmod -R go-wrx ~/.ssh/*
The best way for me was using vector with categories in order I need as limits
parameter to scale_x_discrete
. I think it is pretty simple and straightforward solution.
ggplot(mtcars, aes(factor(cyl))) +
geom_bar() +
scale_x_discrete(limits=c(8,4,6))
There are two solutions posted on that page. The one with lower votes I would recommend if possible.
If you are using HTML5 then it is perfectly valid to put a div
inside of a
. As long as the div doesn't also contain some other specific elements like other link tags.
<a href="Music.html">
<div id="music" class="nav">
Music I Like
</div>
</a>
The solution you are confused about actually makes the link as big as its container div. To make it work in your example you just need to add position: relative
to your div. You also have a small syntax error which is that you have given the span a class instead of an id. You also need to put your span inside the link because that is what the user is clicking on. I don't think you need the z-index
at all from that example.
div { position: relative; }
.hyperspan {
position:absolute;
width:100%;
height:100%;
left:0;
top:0;
}
<div id="music" class="nav">Music I Like
<a href="http://www.google.com">
<span class="hyperspan"></span>
</a>
</div>
When you give absolute
positioning to an element it bases its location and size after the first parent it finds that is relatively positioned. If none, then it uses the document. By adding relative
to the parent div you tell the span to only be as big as that.
sp_executesql
is more likely to promote query plan reuse. When using sp_executesql
, parameters are explicitly identified in the calling signature. This excellent article descibes this process.
The oft cited reference for many aspects of dynamic sql is Erland Sommarskog's must read: "The Curse and Blessings of Dynamic SQL".
I recommend two steps to address the bloated SDK problem.
First, I removed all but two versions of Android:
The current version, e.g. 6.0 Marshmallow as of this writing. This version is to test and develop to the latest and greatest that the current Nexus handsets are running plus a couple of other brands.
An older version, e.g. 4.04 Ice Cream Sandwich. This is to provide compatibility for the vast majority of handsets. You lose some functionality of the newer versions, but you gain a lowest common denominator of compatibility.
Second, I removed the emulators, and kept only the above two. I told it not to store the complete system state to disk, which it does indeed warn you will take up a lot of space, though it does make start-up faster. Just start up the emulator before you go make your coffee in the morning :)
If that's too much space, remove the emulators completely. Pick up a couple of older handsets off Ebay that will provide you with all the test platforms you need. They don't even have to be completely functional -- many apps don't need a SIM and cellular connectivity, for example.
My Android environment was taking up 32 gigs on my 128-gig Macbook Air. Couldn't keep doing this. Some day they'll make terabyte Macbook Airs but until then, got to slim down.
The problem is that there is an in-browser print dialogue within the popup window. If you call window.close()
immediately then the dialogue is not seen by the user. The user needs to click "Print" within the dialogue. This is not the same as on other browsers where the print dialogue is part of the OS, and blocks the window.close()
until dismissed - on Chrome, it's part of Chrome, not the OS.
This is the code I used, in a little popup window that is created by the parent window:
var is_chrome = function () { return Boolean(window.chrome); }
window.onload = function() {
if(is_chrome){
/*
* These 2 lines are here because as usual, for other browsers,
* the window is a tiny 100x100 box that the user will barely see.
* On Chrome, it needs to be big enough for the dialogue to be read
* (NB, it also includes a page preview).
*/
window.moveTo(0,0);
window.resizeTo(640, 480);
// This line causes the print dialogue to appear, as usual:
window.print();
/*
* This setTimeout isn't fired until after .print() has finished
* or the dialogue is closed/cancelled.
* It doesn't need to be a big pause, 500ms seems OK.
*/
setTimeout(function(){
window.close();
}, 500);
} else {
// For other browsers we can do things more briefly:
window.print();
window.close();
}
}
The top answer misses the fact that you can have a perfectly stable connection to your default gateway but that does not automatically mean you can actually reach something on the internet. The OP asks how he/she can test a connection with the world. So I suggest to alter the top answer by changing the gateway IP to a known IP (x.y.z.w) that is outside your LAN.
So the answer would become:
ping -q -w 1 -c 1 x.y.z.w > /dev/null && echo ok || echo error
Also removing the unfavored backticks for command substitution[1].
If you just want to make sure you are connected to the world before executing some code you can also use:
if ping -q -w 1 -c 1 x.y.z.w > /dev/null; then
# more code
fi
Give -webkit-appearance:
a go. Worth a try anyway.
http://css-infos.net/property/-webkit-appearance
Hope that helps :)
Try split(",")[i]
where i
is the index in result array. split
gives array below
["test1", " test2", " test3", " test4", " test5"]
whose element can be accessed by index.
sh
is interpreting the &&
as a shell operator. Change it to -a
, that’s [
’s conjunction operator:
[ "$arg1" = "$arg2" -a "$arg1" != "$arg3" ]
Also, you should always quote the variables, because [
gets confused when you leave off arguments.
for me this how I solve it:
under Libraries
Note: make sure that in Eclipse / Preferences (NOT the project) / Java / Installed JRE ,that the jdk points to the JDK folder not the JRE C:\Program Files\Java\jdk1.8.0_74
I think it would be best for SecureString
dependent functions to encapsulate their dependent logic in an anonymous function for better control over the decrypted string in memory (once pinned).
The implementation for decrypting SecureStrings in this snippet will:
finally
block.This obviously makes it a lot easier to "standardize" and maintain callers vs. relying on less desirable alternatives:
string DecryptSecureString(...)
helper function.Notice here, you have two options:
static T DecryptSecureString<T>
which allows you to access the result of the Func
delegate from the caller (as shown in the DecryptSecureStringWithFunc
test method).static void DecryptSecureString
is simply a "void" version which employ an Action
delegate in cases where you actually don't want/need to return anything (as demonstrated in the DecryptSecureStringWithAction
test method).Example usage for both can be found in the StringsTest
class included.
Strings.cs
using System;
using System.Runtime.InteropServices;
using System.Security;
namespace SecurityUtils
{
public partial class Strings
{
/// <summary>
/// Passes decrypted password String pinned in memory to Func delegate scrubbed on return.
/// </summary>
/// <typeparam name="T">Generic type returned by Func delegate</typeparam>
/// <param name="action">Func delegate which will receive the decrypted password pinned in memory as a String object</param>
/// <returns>Result of Func delegate</returns>
public static T DecryptSecureString<T>(SecureString secureString, Func<string, T> action)
{
var insecureStringPointer = IntPtr.Zero;
var insecureString = String.Empty;
var gcHandler = GCHandle.Alloc(insecureString, GCHandleType.Pinned);
try
{
insecureStringPointer = Marshal.SecureStringToGlobalAllocUnicode(secureString);
insecureString = Marshal.PtrToStringUni(insecureStringPointer);
return action(insecureString);
}
finally
{
//clear memory immediately - don't wait for garbage collector
fixed(char* ptr = insecureString )
{
for(int i = 0; i < insecureString.Length; i++)
{
ptr[i] = '\0';
}
}
insecureString = null;
gcHandler.Free();
Marshal.ZeroFreeGlobalAllocUnicode(insecureStringPointer);
}
}
/// <summary>
/// Runs DecryptSecureString with support for Action to leverage void return type
/// </summary>
/// <param name="secureString"></param>
/// <param name="action"></param>
public static void DecryptSecureString(SecureString secureString, Action<string> action)
{
DecryptSecureString<int>(secureString, (s) =>
{
action(s);
return 0;
});
}
}
}
StringsTest.cs
using Microsoft.VisualStudio.TestTools.UnitTesting;
using System.Security;
namespace SecurityUtils.Test
{
[TestClass]
public class StringsTest
{
[TestMethod]
public void DecryptSecureStringWithFunc()
{
// Arrange
var secureString = new SecureString();
foreach (var c in "UserPassword123".ToCharArray())
secureString.AppendChar(c);
secureString.MakeReadOnly();
// Act
var result = Strings.DecryptSecureString<bool>(secureString, (password) =>
{
return password.Equals("UserPassword123");
});
// Assert
Assert.IsTrue(result);
}
[TestMethod]
public void DecryptSecureStringWithAction()
{
// Arrange
var secureString = new SecureString();
foreach (var c in "UserPassword123".ToCharArray())
secureString.AppendChar(c);
secureString.MakeReadOnly();
// Act
var result = false;
Strings.DecryptSecureString(secureString, (password) =>
{
result = password.Equals("UserPassword123");
});
// Assert
Assert.IsTrue(result);
}
}
}
Obviously, this doesn't prevent abuse of this function in the following manner, so just be careful not to do this:
[TestMethod]
public void DecryptSecureStringWithAction()
{
// Arrange
var secureString = new SecureString();
foreach (var c in "UserPassword123".ToCharArray())
secureString.AppendChar(c);
secureString.MakeReadOnly();
// Act
string copyPassword = null;
Strings.DecryptSecureString(secureString, (password) =>
{
copyPassword = password; // Please don't do this!
});
// Assert
Assert.IsNull(copyPassword); // Fails
}
Happy coding!
Having tried other solutions which worked fine, but the pitfall of their answers is that only fields already existing would update adding upsert to it would do nothing, so I came up with this.
Person.update({'items.id': 2}, {$set: {
'items': { "item1", "item2", "item3", "item4" } }, {upsert:
true })
Worth mentioning that there are many different solutions which offer two way binding and play really nicely.
I have had a pleasant experience with this model binder - https://github.com/theironcook/Backbone.ModelBinder. which gives sensible defaults yet a lot of custom jquery selector mapping of model attributes to input elements.
There is a more extended list of backbone extensions/plugins on github
Just an alternative to the code by rkosegi,
BEGIN
.. Declare statements ..
DECLARE EXIT HANDLER FOR SQLEXCEPTION
BEGIN
.. set any flags etc eg. SET @flag = 0; ..
ROLLBACK;
END;
START TRANSACTION;
.. Query 1 ..
.. Query 2 ..
.. Query 3 ..
COMMIT;
.. eg. SET @flag = 1; ..
END
Here's an utility that rounds (instead of truncating) a double to specified number of decimal places.
For example:
round(200.3456, 2); // returns 200.35
public static double round(double value, int places) {
if (places < 0) throw new IllegalArgumentException();
long factor = (long) Math.pow(10, places);
value = value * factor;
long tmp = Math.round(value);
return (double) tmp / factor;
}
This breaks down badly in corner cases with either a very high number of decimal places (e.g. round(1000.0d, 17)
) or large integer part (e.g. round(90080070060.1d, 9)
). Thanks to Sloin for pointing this out.
I've been using the above to round "not-too-big" doubles to 2 or 3 decimal places happily for years (for example to clean up time in seconds for logging purposes: 27.987654321987 -> 27.99). But I guess it's best to avoid it, since more reliable ways are readily available, with cleaner code too.
(Adapted from this answer by Louis Wasserman and this one by Sean Owen.)
public static double round(double value, int places) {
if (places < 0) throw new IllegalArgumentException();
BigDecimal bd = BigDecimal.valueOf(value);
bd = bd.setScale(places, RoundingMode.HALF_UP);
return bd.doubleValue();
}
Note that HALF_UP
is the rounding mode "commonly taught at school". Peruse the RoundingMode documentation, if you suspect you need something else such as Bankers’ Rounding.
Of course, if you prefer, you can inline the above into a one-liner:
new BigDecimal(value).setScale(places, RoundingMode.HALF_UP).doubleValue()
Always remember that floating point representations using float
and double
are inexact.
For example, consider these expressions:
999199.1231231235 == 999199.1231231236 // true
1.03 - 0.41 // 0.6200000000000001
For exactness, you want to use BigDecimal. And while at it, use the constructor that takes a String, never the one taking double. For instance, try executing this:
System.out.println(new BigDecimal(1.03).subtract(new BigDecimal(0.41)));
System.out.println(new BigDecimal("1.03").subtract(new BigDecimal("0.41")));
Some excellent further reading on the topic:
float
and double
if exact answers are required" in Effective Java (2nd ed) by Joshua BlochIf you wanted String formatting instead of (or in addition to) strictly rounding numbers, see the other answers.
Specifically, note that round(200, 0)
returns 200.0
. If you want to output "200.00", you should first round and then format the result for output (which is perfectly explained in Jesper's answer).
Your question may mean two different things:
1.) Open a web page with a browser.
#include <windows.h>
#include <shellapi.h>
...
ShellExecute(0, 0, L"http://www.google.com", 0, 0 , SW_SHOW );
This should work, it opens the file with the associated program. Should open the browser, which is usually the default web browser.
2.) Get the code of a webpage and you will render it yourself or do some other thing. For this I recommend to read this or/and this.
I hope it's at least a little helpful.
EDIT: Did not notice, what you are asking for UNIX, this only work on Windows.
In the object you're mapping:
@JsonSerialize(using = CustomDateSerializer.class)
public DateTime getDate() { ... }
In CustomDateSerializer:
public class CustomDateSerializer extends JsonSerializer<DateTime> {
private static DateTimeFormatter formatter =
DateTimeFormat.forPattern("dd-MM-yyyy");
@Override
public void serialize(DateTime value, JsonGenerator gen,
SerializerProvider arg2)
throws IOException, JsonProcessingException {
gen.writeString(formatter.print(value));
}
}
I had a similar problem and I searched for the solution for quite a while: It appears that the string parameter is case sensitive. So if your filename is abc.TXT but you search for abc.txt, eclipse will find it - the executable JAR file won't.
This isn't really possible without tricks. Here is a way that works by replacing the text with an image of text.
.pvw-title{
text-indent: -9999px;
background-image: url(text_image.png)
}
This type of thing is typically done with JavaScript. Here is how it can be done with jQuery:
$('.pvw-title').text('new text');
System.Text.ASCIIEncoding.Unicode.GetByteCount(yourString);
Or
System.Text.ASCIIEncoding.ASCII.GetByteCount(yourString);
I was in the same place as you, finally I found a neat answer :
<form action="xx/xx" method="POST">
<input type="hidden" name="what you want" value="what you want">
<input type="image" src="xx.xx">
</form>
From my experience, sudo apt-get install gcc-multilib g++-multilib
helps. But my another issue is that I FORGET to clean the directory so I still get the same error. It is the first time to use clang or cmake. So I just delete my original directory and re-compile and it works. Hope it helps someone like me.
I'm not aware of anything like a single table that lets you compare all of them in at one glance (I'm not sure such a table would even be feasible).
Of course the ISO standard document enumerates the complexity requirements in detail, sometimes in various rather readable tables, other times in less readable bullet points for each specific method.
Also the STL library reference at http://www.cplusplus.com/reference/stl/ provides the complexity requirements where appropriate.
From the threading
module documentation
There is a “main thread” object; this corresponds to the initial thread of control in the Python program. It is not a daemon thread.
There is the possibility that “dummy thread objects” are created. These are thread objects corresponding to “alien threads”, which are threads of control started outside the threading module, such as directly from C code. Dummy thread objects have limited functionality; they are always considered alive and daemonic, and cannot be
join()
ed. They are never deleted, since it is impossible to detect the termination of alien threads.
So, to catch those two cases when you are not interested in keeping a list of the threads you create:
import threading as thrd
def alter_data(data, index):
data[index] *= 2
data = [0, 2, 6, 20]
for i, value in enumerate(data):
thrd.Thread(target=alter_data, args=[data, i]).start()
for thread in thrd.enumerate():
if thread.daemon:
continue
try:
thread.join()
except RuntimeError as err:
if 'cannot join current thread' in err.args[0]:
# catchs main thread
continue
else:
raise
Whereupon:
>>> print(data)
[0, 4, 12, 40]
You can try saving (or writing) the Buffered Image with the changes you made and then opening it as an Image.
EDIT:
try {
// Retrieve Image
BufferedImage buffer = ImageIO.read(new File("old.png"));;
// Here you can rotate your image as you want (making your magic)
File outputfile = new File("saved.png");
ImageIO.write(buffer, "png", outputfile); // Write the Buffered Image into an output file
Image image = ImageIO.read(new File("saved.png")); // Opening again as an Image
} catch (IOException e) {
...
}
first get the profiler Exe from: http://expressprofiler.codeplex.com
then you can add it simply to the Management studio:
Tools -> External tools... ->
a- locate the exe file on your disk (If installed, it's typically C:\Program Files (x86)\ExpressProfiler\ExpressProfiler.exe)
b- give it a name e.g. Express Profiler
that's it :) you have your Profiler with your sql express edition
This is my solution with swift 5.
To fully control the header section view, you need to use the tableView(:viewForHeaderInsection::) method in your controller, as the previous post showed. However, there is a further step: to improve performance, apple recommend not generate a new view every time but to re-use the header view, just like reuse table cell. This is by method tableView.dequeueReusableHeaderFooterView(withIdentifier: ). But the problem I had is once you start to use this re-use function, the font won't function as expected. Other things like color, alignment all fine but just font. There are some discussions but I made it work like the following.
The problem is tableView.dequeueReusableHeaderFooterView(withIdentifier:) is not like tableView.dequeneReuseCell(:) which always returns a cell. The former will return a nil if no one available. Even if it returns a reuse header view, it is not your original class type, but a UITableHeaderFooterView. So you need to do the judgement and act according in your own code. Basically, if it is nil, get a brand new header view. If not nil, force to cast so you can control.
override func tableView(_ tableView: UITableView, viewForHeaderInSection section: Int) -> UIView? {
let reuse_header = tableView.dequeueReusableHeaderFooterView(withIdentifier: "yourHeaderID")
if (reuse_header == nil) {
let new_sec_header = YourTableHeaderViewClass(reuseIdentifier:"yourHeaderID")
new_section_header.label.text="yourHeaderString"
//do whatever to set color. alignment, etc to the label view property
//note: the label property here should be your custom label view. Not the build-in labelView. This way you have total control.
return new_section_header
}
else {
let new_section_header = reuse_section_header as! yourTableHeaderViewClass
new_sec_header.label.text="yourHeaderString"
//do whatever color, alignment, etc to the label property
return new_sec_header}
}
Have you tried:
SELECT Cast( 2.555 as decimal(53,8))
This would return 2.55500000
. Is that what you want?
UPDATE:
Apparently you can also use SQL_VARIANT_PROPERTY to find the precision and scale of a value. Example:
SELECT SQL_VARIANT_PROPERTY(Cast( 2.555 as decimal(8,7)),'Precision'),
SQL_VARIANT_PROPERTY(Cast( 2.555 as decimal(8,7)),'Scale')
returns 8|7
You may be able to use this in your conversion process...
I was having this issue when testing my Cordova app on android. It just so happens that this android device does not persist its date, and will reset back to its factory date somehow. The API that it calls has a cert that is valid starting this year, while the device date after bootup is in 2017. For now, I have to adb shell
and change the date manually.
XML version for @Asher Aslan cool effect.
<?xml version="1.0" encoding="utf-8"?>
<shape xmlns:android="http://schemas.android.com/apk/res/android" >
<gradient
android:angle="180"
android:startColor="#00000000"
android:centerColor="#FFFF0000"
android:endColor="#00000000"/>
</shape>
Name for that shape as: list_driver.xml under drawable folder
<ListView
android:id="@+id/category_list"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:divider="@drawable/list_driver"
android:dividerHeight="5sp" />
Encountered the same issue with a ASP.Net Web App and two library class projects which needed to be referenced within the Web App. I had no information provided on why the build failed and the references were invalid.
Solution was to ensure all projects had the same Target Framework:
In Visual Studio 2015- Right Click project > Properties > Application > Target Framework
Save, Clean and Rebuild solution. The project references should no longer appear as yellow warnings and the solution will compile.
My Web App was targeting .Net 4.5 whereas the other two dependent library class projects targeted .Net v4.5.2
Make the keydown even call multiple functions, with each function checking for a specific key and responding appropriately.
document.keydown = function (key) {
checkKey("x");
checkKey("y");
};
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.
With the Atom editor open, in the menu bar:
Click Atom >> Install Shell Commands
You should expect to see:
Potentially restart your terminal. (I did just out of habit, not sure if you need to)
my solution:
; (function ($) {
$.each([ "toggle", "show", "hide" ], function( i, name ) {
var cssFn = $.fn[ name ];
$.fn[ name ] = function( speed, easing, callback ) {
if(speed == null || typeof speed === "boolean"){
var ret=cssFn.apply( this, arguments )
$.fn.triggerVisibleEvent.apply(this,arguments)
return ret
}else{
var that=this
var new_callback=function(){
callback.call(this)
$.fn.triggerVisibleEvent.apply(that,arguments)
}
var ret=this.animate( genFx( name, true ), speed, easing, new_callback )
return ret
}
};
});
$.fn.triggerVisibleEvent=function(){
this.each(function(){
if($(this).is(':visible')){
$(this).trigger('visible')
$(this).find('[data-trigger-visible-event]').triggerVisibleEvent()
}
})
}
})(jQuery);
for example:
if(!$info_center.is(':visible')){
$info_center.attr('data-trigger-visible-event','true').one('visible',processMoreLessButton)
}else{
processMoreLessButton()
}
function processMoreLessButton(){
//some logic
}
You can easily do it with jquery toggle. By this toggle or slideToggle you will get nice animation and effect also.
$(function(){_x000D_
$("#details_content").css("display","none");_x000D_
$(".myButton").click(function(){_x000D_
$("#details_content").slideToggle(1000);_x000D_
}) _x000D_
})
_x000D_
<div class="main">_x000D_
<h2 class="myButton" style="cursor:pointer">Click Me</h2>_x000D_
<div id="details_content">_x000D_
<h1> Lorem Ipsum is simply dummy text</h1> _x000D_
<p> of the printing and typesetting industry. Lorem Ipsum has been the industry's standard dummy text ever since the 1500s, when an unknown printer took a galley of type and scrambled it to make a type specimen book.</p>_x000D_
</div>_x000D_
</div>
_x000D_
You can use the following commands:
whoami /priv
whoami /all
For more information, check whoami @ technet.
Since this question has been answered, another solution has been launched.
https://github.com/appjs/appjs
At the time of this writing, this is the end-all solution for packaging node.js apps through a stripped down chromium package compiled into an executable.
Edit: AppJS is no longer active, but itself suggests a fork called deskshell.
That's probably useful for someone, who uses unittest, if imported modules use request library. To suppress warnings in requests' vendored urllib3, add
warnings.filterwarnings('ignore', message='Unverified HTTPS request')
to setUp method in your testclass, i.e:
import unittest, warnings
class MyTests(unittest.TestCase):
def setUp(self):
warnings.filterwarnings('ignore', message='Unverified HTTPS request')
(all test methods here)
For all types I cooked up an Object prototype function. It may be of use to you
Object.prototype.typof = function(chkType){
var inp = String(this.constructor),
customObj = (inp.split(/\({1}/))[0].replace(/^\n/,'').substr(9),
regularObj = Object.prototype.toString.apply(this),
thisType = regularObj.toLowerCase()
.match(new RegExp(customObj.toLowerCase()))
? regularObj : '[object '+customObj+']';
return chkType
? thisType.toLowerCase().match(chkType.toLowerCase())
? true : false
: thisType;
}
Now you can check any type like this:
var myDate = new Date().toString(),
myRealDate = new Date();
if (myRealDate.typof('Date')) { /* do things */ }
alert( myDate.typof() ); //=> String
[Edit march 2013] based on progressing insight this is a better method:
Object.prototype.is = function() {
var test = arguments.length ? [].slice.call(arguments) : null
,self = this.constructor;
return test ? !!(test.filter(function(a){return a === self}).length)
: (this.constructor.name ||
(String(self).match ( /^function\s*([^\s(]+)/im)
|| [0,'ANONYMOUS_CONSTRUCTOR']) [1] );
}
// usage
var Some = function(){ /* ... */}
,Other = function(){ /* ... */}
,some = new Some;
2..is(String,Function,RegExp); //=> false
2..is(String,Function,Number,RegExp); //=> true
'hello'.is(String); //=> true
'hello'.is(); //-> String
/[a-z]/i.is(); //-> RegExp
some.is(); //=> 'ANONYMOUS_CONSTRUCTOR'
some.is(Other); //=> false
some.is(Some); //=> true
// note: you can't use this for NaN (NaN === Number)
(+'ab2').is(Number); //=> true
Easiest is to use strftime
(docs).
If it's for use on the view side, better to wrap it in a helper, though.
Another reason you may see this error that I haven't seen posted yet, especially if you are using Jenkins, is that your certificate's private key needs "Allow all applications to access this item" selected.
Warning: Don't do this if you've already pushed
You want to do:
git reset HEAD~
If you don't want the changes and blow everything away:
git reset --hard HEAD~
In case you were struggling to change linetypes
, the following answer should be helpful. (This is an addition to the solution by Andy W.)
We will try to extend the learned pattern:
cols <- c("LINE1"="#f04546","LINE2"="#3591d1","BAR"="#62c76b")
line_types <- c("LINE1"=1,"LINE2"=3)
ggplot(data=data,aes(x=a)) +
geom_bar(stat="identity", aes(y=h,fill = "BAR"))+ #green
geom_line(aes(y=b,group=1, colour="LINE1", linetype="LINE1"),size=0.5) + #red
geom_point(aes(y=b, colour="LINE1", fill="LINE1"),size=2) + #red
geom_line(aes(y=c,group=1,colour="LINE2", linetype="LINE2"),size=0.5) + #blue
geom_point(aes(y=c,colour="LINE2", fill="LINE2"),size=2) + #blue
scale_colour_manual(name="Error Bars",values=cols,
guide = guide_legend(override.aes=aes(fill=NA))) +
scale_linetype_manual(values=line_types)+
scale_fill_manual(name="Bar",values=cols, guide="none") +
ylab("Symptom severity") + xlab("PHQ-9 symptoms") +
ylim(0,1.6) +
theme_bw() +
theme(axis.title.x = element_text(size = 15, vjust=-.2)) +
theme(axis.title.y = element_text(size = 15, vjust=0.3))
However, what we get is the following result:
The problem is that the linetype
is not merged in the main legend.
Note that we did not give any name to the method scale_linetype_manual
.
The trick which works here is to give it the same name as what you used for naming scale_colour_manual
.
More specifically, if we change the corresponding line to the following we get the desired result:
scale_linetype_manual(name="Error Bars",values=line_types)
Now, it is easy to change the size of the line with the same idea.
Note that the geom_bar
has not colour property anymore. (I did not try to fix this issue.) Also, adding geom_errorbar
with colour attribute spoils the result. It would be great if somebody can come up with a better solution which resolves these two issues as well.
Just click the dropdown button on left side of RUN button (in your image the dropdown which is in red box) select 'app' option from that and RUN button will be enabled.
Please refer below screenshot.
I had this same problem when running jwebunit integration tests. I fixed it by excluding logback and adding in slf4j-log4j12, like so:
<dependency>
<groupId>net.sourceforge.jwebunit</groupId>
<artifactId>jwebunit-htmlunit-plugin</artifactId>
<version>3.0</version>
<exclusions>
<exclusion>
<groupId>ch.qos.logback</groupId>
<artifactId>logback-classic</artifactId>
</exclusion>
</exclusions>
</dependency>
<dependency>
<groupId>org.slf4j</groupId>
<artifactId>slf4j-log4j12</artifactId>
</dependency>
The params
parameter modifier gives callers a shortcut syntax for passing multiple arguments to a method. There are two ways to call a method with a params
parameter:
1) Calling with an array of the parameter type, in which case the params
keyword has no effect and the array is passed directly to the method:
object[] array = new[] { "1", "2" };
// Foo receives the 'array' argument directly.
Foo( array );
2) Or, calling with an extended list of arguments, in which case the compiler will automatically wrap the list of arguments in a temporary array and pass that to the method:
// Foo receives a temporary array containing the list of arguments.
Foo( "1", "2" );
// This is equivalent to:
object[] temp = new[] { "1", "2" );
Foo( temp );
In order to pass in an object array to a method with a "params object[]
" parameter, you can either:
1) Create a wrapper array manually and pass that directly to the method, as mentioned by lassevk:
Foo( new object[] { array } ); // Equivalent to calling convention 1.
2) Or, cast the argument to object
, as mentioned by Adam, in which case the compiler will create the wrapper array for you:
Foo( (object)array ); // Equivalent to calling convention 2.
However, if the goal of the method is to process multiple object arrays, it may be easier to declare it with an explicit "params object[][]
" parameter. This would allow you to pass multiple arrays as arguments:
void Foo( params object[][] arrays ) {
foreach( object[] array in arrays ) {
// process array
}
}
...
Foo( new[] { "1", "2" }, new[] { "3", "4" } );
// Equivalent to:
object[][] arrays = new[] {
new[] { "1", "2" },
new[] { "3", "4" }
};
Foo( arrays );
Edit: Raymond Chen describes this behavior and how it relates to the C# specification in a new post.
You can define different cookies for every user with CURLOPT_COOKIEFILE
and CURLOPT_COOKIEJAR
. Make different file for every user so each one would have it's own cookie-based session on remote server.
There is a quick method to set the syntax:
Ctrl
+Shift
+P
,then type in the input box
ss + (which type you want set)
eg: ss html +Enter
and ss means "set syntax"
it is really quicker than check in the menu's checkbox.
Instead of using a collector try using findFirst
or findAny
.
Optional<Person> matchingObject = objects.stream().
filter(p -> p.email().equals("testemail")).
findFirst();
This returns an Optional
since the list might not contain that object.
If you're sure that the list always contains that person you can call:
Person person = matchingObject.get();
Be careful though! get
throws NoSuchElementException
if no value is present. Therefore it is strongly advised that you first ensure that the value is present (either with isPresent
or better, use ifPresent
, map
, orElse
or any of the other alternatives found in the Optional
class).
If you're okay with a null
reference if there is no such person, then:
Person person = matchingObject.orElse(null);
If possible, I would try to avoid going with the null
reference route though. Other alternatives methods in the Optional class (ifPresent
, map
etc) can solve many use cases. Where I have found myself using orElse(null)
is only when I have existing code that was designed to accept null
references in some cases.
Optionals have other useful methods as well. Take a look at Optional javadoc.
export default
is used to create local registration for Vue component.
Here is a great article that explain more about components https://frontendsociety.com/why-you-shouldnt-use-vue-component-ff019fbcac2e
Include this line on top of your test class
@PrepareForTest({ First.class })
HttpClient.get()
applies res.json()
automatically and returns Observable<HttpResponse<string>>
. You no longer need to call this function yourself.
Try removing android:gradientRadius="90". Here is one that works for me:
<shape
xmlns:android="http://schemas.android.com/apk/res/android"
android:shape="rectangle"
>
<gradient
android:startColor="@color/purple"
android:endColor="@color/pink"
android:angle="270" />
</shape>
Let me fix your code
inventory=["sword", "potion", "armour", "bow"]
print(inventory)
print("\ncommands: use (remove) and pickup (add)")
selection=input("choose a command [use/pickup]")
if selection == "use":
print(inventory)
inventory.remove(input("What do you want to use? "))
print(inventory)
elif selection == "pickup":
print(inventory)
add=input("What do you want to pickup? ")
newinv=inventory+[str(add)] #use '[str(add)]' or list(str(add))
print(newinv)
The error is you are adding string and list, you should use list
or []
to make the string become list
type
iReports Custom Fields for columns (sum, average, etc)
Right-Click on Variables and click Create Variable
Click on the new variable
a. Notice the properties on the right
Rename the variable accordingly
Change the Value Class Name to the correct Data Type
a. You can search by clicking the 3 dots
Select the correct type of calculation
Change the Expression
a. Click the little icon
b. Select the column you are looking to do the calculation for
c. Click finish
Set Initial Value Expression to 0
Set the increment type to none
Set the Reset Type (usually report)
Drag a new Text Field to stage (Usually in Last Page Footer, or Column Footer)
Select the new variable
Click finish
Um, that's because Visual Studio is the best IDE. Come back to the darkside.
There's a jQuery plugin here which allows users to test whether an element falls within the visible viewport of the browser, taking the browsers scroll position into account.
$('#element').visible();
You can also check for partial visibility:
$('#element').visible( true);
One drawback is that it only works with vertical positioning / scrolling, although it should be easy enough to add horizontal positioning into the mix.
It depends on how the data was initially put into the column. Try either of these as one should work:
SELECT CONVERT(NVarChar(40), BLOBTextToExtract)
FROM [NavisionSQL$Customer];
Or if it was just varchar
...
SELECT CONVERT(VarChar(40), BLOBTextToExtract)
FROM [NavisionSQL$Customer];
I used this script to verify and test on SQL Server 2K8 R2:
DECLARE @blob VarBinary(MAX) = CONVERT(VarBinary(MAX), 'test');
-- show the binary representation
SELECT @blob;
-- this doesn't work
SELECT CONVERT(NVarChar(100), @blob);
-- but this does
SELECT CONVERT(VarChar(100), @blob);
#if DEBUG
bool bypassCheck=TRUE_OR_FALSE;//i will decide depending on what i am debugging
#else
bool bypassCheck = false; //NEVER bypass it
#endif
Make sure you have the checkbox to define DEBUG checked in your build properties.
This might be helpful. You have to just trigger an event.
$("#DropDownID").trigger("liszt:updated");
Where "DropDownID" is ID of <select>
.
More info here: http://harvesthq.github.com/chosen/
I was facing the same issue. As it turns out in my build.gradle file there was this :
configurations {
all*.exclude group: 'com.android.support'
}
Removing that fixed my issue. So guys, if doing all that and still your issue is not fixed, look for any exclude keywords in your gradle file.
You have to add to the source property an object with a property called "uri" where you can specify the path of your image as you can see in the following example:
<Image style={styles.image} source={{uri: "http://www.mysyte.com/myimage.jpg"}} />
remember then to set the width and height via the style property:
var styles = StyleSheet.create({
image:{
width: 360,
height: 40,
}
});
you can use the new HTML 5 file api to read file contents
https://developer.mozilla.org/en-US/docs/Using_files_from_web_applications
but this won't work on every browser so you probably need a server side fallback.
I finally came up with a handy utility function with a unified interface to iterate Objects, Strings, Arrays, TypedArrays, Maps, Sets, (any Iterables).
const iterate = require('@a-z/iterate-it');
const obj = { a: 1, b: 2, c: 3 };
iterate(obj, (value, key) => console.log(key, value));
// a 1
// b 2
// c 3
The full error message sounds:
ERROR 1075 (42000): Incorrect table definition; there can be only one auto column and it must be defined as a key
So add primary key
to the auto_increment
field:
CREATE TABLE book (
id INT AUTO_INCREMENT primary key NOT NULL,
accepted_terms BIT(1) NOT NULL,
accepted_privacy BIT(1) NOT NULL
) ENGINE=InnoDB DEFAULT CHARSET=latin1;
check versions of node, npm, npx as given below. if npx is not installed then use npm i -g npx
node -v
npm -v
npx -v
On Vista, this worked:
DOS: del c:\user\dad\.android\debug.keystore
ECLIPSE: In Project, Clean the project. Close Eclipse. Re-open Eclipse.
ECLIPSE: Start the Emulator. Remove the Application from the emulator.
You are good to go.
I was pretty worried when I say that error, but I fixed it from reading here and playing around for 10 minutes.
It's better to use the actual (msi) installer from nodejs.org instead of downloading the node executable only. The installer includes npm and makes it easier to manage your node installation. There is an installer for both 32-bit and 64-bit Windows.
Also a couple of other tidbits:
Installing modules globally doesn't do what you might expect. The only modules you should install globally (the -g
flag in npm) are ones that install commands. So to install Express you would just do npm install express
and that will install Express to your current working directory. If you were instead looking for the Express project generator (command), you need to do npm install -g express-generator
for Express 4.
You can use node anywhere from your command prompt to execute scripts. For example if you have already written a separate script: node foo.js
. Or you can open up the REPL (as you've already found out) by just selecting the node.js (start menu) shortcut or by just typing node
in a command prompt.
There is a special trick I discovered by accident.
Rotate the x axis labels with angle equal or smaller than 90 degrees using base graphics. Code adapted from the R FAQ:
par(mar = c(7, 4, 2, 2) + 0.2) #add room for the rotated labels
#use mtcars dataset to produce a barplot with qsec colum information
mtcars = mtcars[with(mtcars, order(-qsec)), ] #order mtcars data set by column "qsec"
end_point = 0.5 + nrow(mtcars) + nrow(mtcars) - 1 #this is the line which does the trick (together with barplot "space = 1" parameter)
barplot(mtcars$qsec, col = "grey50",
main = "",
ylab = "mtcars - qsec", ylim = c(0,5 + max(mtcars$qsec)),
xlab = "",
space = 1)
#rotate 60 degrees (srt = 60)
text(seq(1.5, end_point, by = 2), par("usr")[3]-0.25,
srt = 60, adj = 1, xpd = TRUE,
labels = paste(rownames(mtcars)), cex = 0.65)
We had the same issues, it was because we had wrong version of Oracle VM Virtual Box. Make sure you uninstall wrong version and re-install Compatible Oracle VM Virtual Box.
It depends on the Test Construct around the operator. Your options are double parentheses, double brackets, single brackets, or test
.
If you use ((
…))
, you are testing arithmetic equality with ==
as in C:
$ (( 1==1 )); echo $?
0
$ (( 1==2 )); echo $?
1
(Note: 0
means true
in the Unix sense and a failed test results in a non-zero number.)
Using -eq
inside of double parentheses is a syntax error.
If you are using [
…]
(or single brackets) or [[
…]]
(or double brackets), or test
you can use one of -eq
, -ne
, -lt
, -le
, -gt
, or -ge
as an arithmetic comparison.
$ [ 1 -eq 1 ]; echo $?
0
$ [ 1 -eq 2 ]; echo $?
1
$ test 1 -eq 1; echo $?
0
The ==
inside of single or double brackets (or the test
command) is one of the string comparison operators:
$ [[ "abc" == "abc" ]]; echo $?
0
$ [[ "abc" == "ABC" ]]; echo $?
1
As a string operator, =
is equivalent to ==
. Also, note the whitespace around =
or ==
: it’s required.
While you can do [[ 1 == 1 ]]
or [[ $(( 1+1 )) == 2 ]]
it is testing the string equality — not the arithmetic equality.
So -eq
produces the result probably expected that the integer value of 1+1
is equal to 2
even though the right-hand side is a string and has a trailing space:
$ [[ $(( 1+1 )) -eq "2 " ]]; echo $?
0
While a string comparison of the same picks up the trailing space and therefore the string comparison fails:
$ [[ $(( 1+1 )) == "2 " ]]; echo $?
1
And a mistaken string comparison can produce a completely wrong answer. 10
is lexicographically less than 2
, so a string comparison returns true
or 0
. So many are bitten by this bug:
$ [[ 10 < 2 ]]; echo $?
0
The correct test for 10
being arithmetically less than 2
is this:
$ [[ 10 -lt 2 ]]; echo $?
1
In comments, there is a question about the technical reason why using the integer -eq
on strings returns true for strings that are not the same:
$ [[ "yes" -eq "no" ]]; echo $?
0
The reason is that Bash is untyped. The -eq
causes the strings to be interpreted as integers if possible including base conversion:
$ [[ "0x10" -eq 16 ]]; echo $?
0
$ [[ "010" -eq 8 ]]; echo $?
0
$ [[ "100" -eq 100 ]]; echo $?
0
And 0
if Bash thinks it is just a string:
$ [[ "yes" -eq 0 ]]; echo $?
0
$ [[ "yes" -eq 1 ]]; echo $?
1
So [[ "yes" -eq "no" ]]
is equivalent to [[ 0 -eq 0 ]]
Last note: Many of the Bash specific extensions to the Test Constructs are not POSIX and therefore may fail in other shells. Other shells generally do not support [[...]]
and ((...))
or ==
.
gzip > stdin.gz
perhaps? Otherwise, you need to flesh out your question.
I found an .ipa file that I wanted using iTunes and copied it over to my desktop.
After that I changed the extension to .zip
and extracted it.
Next I found the Payload folder and moved the application inside to my desktop.
Finally I moved that application to my iPhone simulators applications folder found at:
Hope this helps! (Note: Some apps crash more often than others.)
In the case of Windows 10 this is not exactly accurate, in fact none of the answers on stackoverflow was, I found this out when I tried to use pixel art as an icon and it got rescaled when it was not supposed to(it was easy to see in this case cause of the interpolation and smoothing windows does) even thou I used the sizes from this post.
So I made an app and did the work on all DPI settings, see it here:
Windows 10 all icon resolutions on all DPI settings
You can also use my app to create icons, also with nearest neighbor interpolation with smoothing off, which is not done with any of the bad editors I have seen.
If you only want the resolutions:
16, 20, 24, 28, 30, 31, 32, 40, 42, 47, 48, 56, 60, 63, 84, 256
and you should use all PNG icons and anything you put in beside these it won't be displayed. See my post why.
You'll want to use .indexOf()
and .splice()
. Something like:
tag_story.splice(tag_story.indexOf(90),1);
As I understand , all of previous answers , does not make an Array output, In my case : I have a model with parent-children structure (simplified code here):
public function parent(){
return $this->belongsTo('App\Models\Accounting\accounting_coding', 'parent_id');
}
public function children()
{
return $this->hasMany('App\Models\Accounting\accounting_coding', 'parent_id');
}
and if you want to have all of children IDs as an Array , This approach is fine and working for me :
public function allChildren()
{
$allChildren = [];
if ($this->has_branch) {
foreach ($this->children as $child) {
$subChildren = $child->allChildren();
if (count($subChildren) == 1) {
$allChildren [] = $subChildren[0];
} else if (count($subChildren) > 1) {
$allChildren += $subChildren;
}
}
}
$allChildren [] = $this->id;//adds self Id to children Id list
return $allChildren;
}
the allChildren() returns , all of childrens as a simple Array .
I won't make such a big deal from this question.
It's not like choosing your new wife or car.
I'd never run any of these on a production server, so, to run just some quick tests any of them are equally good.
You can also make use of a proxy server on your iPhone or iPade via mobile internet (3G) by using a iPhone Mobile proxy generator:
http://iphonesettings.net/mobileproxygenerator.php
Just enter the apn of your carrier (with apn username/password if needed) and the proxy server you want to go through and tap Generate
I store encoded HTML in the database.
Imho you should not store your data html-encoded in the database. Just store in plain text (not encoded) and just display your data like this and your html will be automatically encoded:
<div class='content'>
@Model.Content
</div>
You can infinitely loop easily enough via recursion.
function it_keeps_going_and_going_and_going() {
it_keeps_going_and_going_and_going();
}
it_keeps_going_and_going_and_going()
x & 1
is equivalent to x % 2
.
x >> 1
is equivalent to x / 2
So, these things are basically the result and remainder of divide by two.
i was facing same problem while copying form source directory to destination
source directory had files ~3 lakcs
i used cp with option -r and it's worked for me
cp -r abc/ def/
it will copy all files from abc to def without giving warning of Argument list too long
map HTTP request header Content-Type
, handle request body.
@RequestParam
? application/x-www-form-urlencoded
,
@RequestBody
? application/json
,
@RequestPart
? multipart/form-data
,
RequestParam (Spring Framework 5.1.9.RELEASE API)
map to query parameters, form data, and parts in multipart requests.
RequestParam
is likely to be used with name-value form fields
RequestBody (Spring Framework 5.1.9.RELEASE API)
bound to the body of the web request. The body of the request is passed through an HttpMessageConverter to resolve the method argument depending on the
content type
of the request. (e.g. JSON, XML)
RequestPart (Spring Framework 5.1.9.RELEASE API)
used to associate the part of a "
multipart/form-data
" request
RequestPart
is likely to be used with parts containing more complex content
HttpMessageConverter (Spring Framework 5.1.9.RELEASE API)
a converter that can convert from and to HTTP requests and responses.
All Known Implementing Classes: ..., AbstractJsonHttpMessageConverter, AbstractXmlHttpMessageConverter, ...
I've struggled my way through most/all the negatives mentioned here, and similar objections from teammates, and agree with them all. But I've stuck it out and will continue to do so by holding firm to the one objective that only maven (or gradle perhaps) really delivers on.
If you're optimizing for peers (open source developers), ant/make/whatever will do. If you're delivering functionality to non-peers (users), only maven/gradle/etc will do.
Only maven lets you release a small bundle of source code + poms (no embedded lib/binary dependency jars with cryptic names and no dependency info) with a well documented standard project layout that can be loaded by any IDE by someone that hasn't absorbed the developers' idiosyncratic layout conventions. And there's a one-button install procedure (mvn install) that builds everything while acquiring any missing dependencies.
The result is an easy on-ramp those users can follow to find their way into the code, where the poms can point them to relevant documentation.
Apart from that (indispensible) requirement, I dislike maven as much as anyone.
Pure javascript can do!
var scrollTop = window.pageYOffset || document.documentElement.scrollTop;
River of News for the iPad took about 400 hours of development to get to version 1.0 and I don't know how many hours my designer spent (20-50?). At US labor rates that's at least $40,000. But that sort of tight development was only possible because it was a one man operation. There is an enormous amount of overhead added when you separate the person writing the code from the person deciding what the product is going to do.
If you are going to send it offshore you'd better know exactly what you want. With the language and time difference it's very hard to do iterative design where you are exploring what is possible.
A simple code :
var homes = [_x000D_
{_x000D_
"h_id": "3",_x000D_
"city": "Dallas",_x000D_
"state": "TX",_x000D_
"zip": "75201",_x000D_
"price": "162500"_x000D_
}, {_x000D_
"h_id": "4",_x000D_
"city": "Bevery Hills",_x000D_
"state": "CA",_x000D_
"zip": "90210",_x000D_
"price": "319250"_x000D_
}, {_x000D_
"h_id": "5",_x000D_
"city": "New York",_x000D_
"state": "NY",_x000D_
"zip": "00010",_x000D_
"price": "962500"_x000D_
}_x000D_
];_x000D_
_x000D_
let sortByPrice = homes.sort(function (a, b) _x000D_
{_x000D_
return parseFloat(b.price) - parseFloat(a.price);_x000D_
});_x000D_
_x000D_
for (var i=0; i<sortByPrice.length; i++)_x000D_
{_x000D_
document.write(sortByPrice[i].h_id+' '+sortByPrice[i].city+' '_x000D_
+sortByPrice[i].state+' '_x000D_
+sortByPrice[i].zip+' '+sortByPrice[i].price);_x000D_
document.write("<br>");_x000D_
}
_x000D_
Mine is a bit more smaller and simpler:
/// <summary>
/// Runs a PowerShell script taking it's path and parameters.
/// </summary>
/// <param name="scriptFullPath">The full file path for the .ps1 file.</param>
/// <param name="parameters">The parameters for the script, can be null.</param>
/// <returns>The output from the PowerShell execution.</returns>
public static ICollection<PSObject> RunScript(string scriptFullPath, ICollection<CommandParameter> parameters = null)
{
var runspace = RunspaceFactory.CreateRunspace();
runspace.Open();
var pipeline = runspace.CreatePipeline();
var cmd = new Command(scriptFullPath);
if (parameters != null)
{
foreach (var p in parameters)
{
cmd.Parameters.Add(p);
}
}
pipeline.Commands.Add(cmd);
var results = pipeline.Invoke();
pipeline.Dispose();
runspace.Dispose();
return results;
}
If you want to have a look at my code. Just for reference
public class Default {
public static void main(String[] args) throws IOException {
BufferedReader br = new BufferedReader(new InputStreamReader(System.in));
int numOfString = Integer.parseInt(br.readLine());
String s;
String stringBalanced = "YES";
Stack<Character> exprStack = new Stack<Character>();
while ((s = br.readLine()) != null) {
stringBalanced = "YES";
int length = s.length() - 1;
for (int i = 0; i <= length; i++) {
char tmp = s.charAt(i);
if(tmp=='[' || tmp=='{' || tmp=='('){
exprStack.push(tmp);
}else if(tmp==']' || tmp=='}' || tmp==')'){
if(!exprStack.isEmpty()){
char peekElement = exprStack.peek();
exprStack.pop();
if(tmp==']' && peekElement!='['){
stringBalanced="NO";
}else if(tmp=='}' && peekElement!='{'){
stringBalanced="NO";
}else if(tmp==')' && peekElement!='('){
stringBalanced="NO";
}
}else{
stringBalanced="NO";
break;
}
}
}
if(!exprStack.isEmpty()){
stringBalanced = "NO";
}
exprStack.clear();
System.out.println(stringBalanced);
}
}
}
I would do something like this:
$.each(temp,function(key, value)
{
$select.append('<option value=' + key + '>' + value + '</option>');
});
JSON structure would be appreciated. At first you can experiment with find('element')
- it depends on JSON.
This answer provides a sample POSIX shell function and a usage example to complement @jabbie's answer.
is_inside_git_repo() {
git rev-parse --is-inside-work-tree >/dev/null 2>&1
}
git
returns errorlevel 0
if it is inside a git repository, else it returns errorlevel 128
. (It also returns true
or false
if it is inside a git repository.)
Usage example
for repo in *; do
# skip files
[ -d "$repo" ] || continue
# run commands in subshell so each loop starts in the current dir
(
cd "$repo"
# skip plain directories
is_inside_git_repo || continue
printf '== %s ==\n' "$repo"
git remote update --prune 'origin' # example command
# other commands here
)
done
/*To get duplicate data in table */
SELECT COUNT(EmpCode),EmpCode FROM tbl_Employees WHERE Status=1
GROUP BY EmpCode HAVING COUNT(EmpCode) > 1
if application is hosted on IIS, make sure Static Content is installed. Control Panel > Programs > Turn Windows features on or off > Internet Information Services > World Wide Web Services > Common HTTP Features > Static Content.
I faced this problem when trying to run an existing application on a new IIS 10.0 installation
Multiple SQL statements must be executed with the mysqli_multi_query()
function.
Example (MySQLi Object-oriented):
<?php
$servername = "localhost";
$username = "username";
$password = "password";
$dbname = "myDB";
// Create connection
$conn = new mysqli($servername, $username, $password, $dbname);
// Check connection
if ($conn->connect_error) {
die("Connection failed: " . $conn->connect_error);
}
$sql = "INSERT INTO names (firstname, lastname)
VALUES ('inpute value here', 'inpute value here');";
$sql .= "INSERT INTO phones (landphone, mobile)
VALUES ('inpute value here', 'inpute value here');";
if ($conn->multi_query($sql) === TRUE) {
echo "New records created successfully";
} else {
echo "Error: " . $sql . "<br>" . $conn->error;
}
$conn->close();
?>
I have been using OleDb
provider. However, it has problems if you are reading in rows that have numeric values but you want them treated as text. However, you can get around that issue by creating a schema.ini
file. Here is my method I used:
// using System.Data;
// using System.Data.OleDb;
// using System.Globalization;
// using System.IO;
static DataTable GetDataTableFromCsv(string path, bool isFirstRowHeader)
{
string header = isFirstRowHeader ? "Yes" : "No";
string pathOnly = Path.GetDirectoryName(path);
string fileName = Path.GetFileName(path);
string sql = @"SELECT * FROM [" + fileName + "]";
using(OleDbConnection connection = new OleDbConnection(
@"Provider=Microsoft.Jet.OLEDB.4.0;Data Source=" + pathOnly +
";Extended Properties=\"Text;HDR=" + header + "\""))
using(OleDbCommand command = new OleDbCommand(sql, connection))
using(OleDbDataAdapter adapter = new OleDbDataAdapter(command))
{
DataTable dataTable = new DataTable();
dataTable.Locale = CultureInfo.CurrentCulture;
adapter.Fill(dataTable);
return dataTable;
}
}
Do not forget that you also can pass these use
variables by reference.
The use cases are when you need to change the use
'd variable from inside of your callback (e.g. produce the new array of different objects from some source array of objects).
$sourcearray = [ (object) ['a' => 1], (object) ['a' => 2]];
$newarray = [];
array_walk($sourcearray, function ($item) use (&$newarray) {
$newarray[] = (object) ['times2' => $item->a * 2];
});
var_dump($newarray);
Now $newarray
will comprise (pseudocode here for brevity) [{times2:2},{times2:4}]
.
On the contrary, using $newarray
with no &
modifier would make outer $newarray
variable be read-only accessible from within the closure scope. But $newarray
within closure scope would be a completelly different newly created variable living only within the closure scope.
Despite both variables' names are the same these would be two different variables. The outer $newarray
variable would comprise []
in this case after the code has finishes.
Just Try This :
textfield.addKeyListener(new java.awt.event.KeyAdapter() {
public void keyTyped(java.awt.event.KeyEvent evt) {
if(textfield.getText().length()>=5&&!(evt.getKeyChar()==KeyEvent.VK_DELETE||evt.getKeyChar()==KeyEvent.VK_BACK_SPACE)) {
getToolkit().beep();
evt.consume();
}
}
});
If you look at the hive-site.xml file you will see something like this
<property>
<name>hive.metastore.warehouse.dir</name>
<value>/usr/hive/warehouse </value>
<description>location of the warehouse directory</description>
</property>
/usr/hive/warehouse is the default location for all managed tables. External tables may be stored at a different location.
describe formatted <table_name>
is the hive shell command which can be use more generally to find the location of data pertaining to a hive table.
import re
s = raw_input('Type a word: ')
slower=''.join(re.findall(r'[a-z]',s))
supper=''.join(re.findall(r'[A-Z]',s))
print slower, supper
Prints:
Type a word: A Title of a Book
itleofaook ATB
Or you can use a list comprehension / generator expression:
slower=''.join(c for c in s if c.islower())
supper=''.join(c for c in s if c.isupper())
print slower, supper
Prints:
Type a word: A Title of a Book
itleofaook ATB
You should change your code to make use of SqlParameters and adapt your insert statement to the following
string connetionString = "Data Source=UMAIR;Initial Catalog=Air; Trusted_Connection=True;" ;
// [ ] required as your fields contain spaces!!
string insStmt = "insert into Main ([First Name], [Last Name]) values (@firstName,@lastName)";
using (SqlConnection cnn = new SqlConnection(connetionString))
{
cnn.Open();
SqlCommand insCmd = new SqlCommand(insStmt, cnn);
// use sqlParameters to prevent sql injection!
insCmd.Parameters.AddWithValue("@firstName", textbox2.Text);
insCmd.Parameters.AddWithValue("@lastName", textbox3.Text);
int affectedRows = insCmd.ExecuteNonQuery();
MessageBox.Show (affectedRows + " rows inserted!");
}
Downgrade your version
<parent>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-parent</artifactId>
<version><change this version></version>
<relativePath /> <!-- lookup parent from repository -->
</parent>
Build and undo the version, Build. 2.1.6.RELEASE to 1.3.3.RELEASE Build Undo 1.3.3 to 2.1.6 Build (in my case problem solved) It helped us.
You can easily tell which mouse button was pressed by checking the which
property of the event object on mouse events:
/*
1 = Left mouse button
2 = Centre mouse button
3 = Right mouse button
*/
$([selector]).mousedown(function(e) {
if (e.which === 3) {
/* Right mouse button was clicked! */
}
});
If you got factor
then you could change levels by standard method:
df <- data.frame(name = c('cow','pig','eagle','pigeon'),
stringsAsFactors = FALSE)
df$type <- factor(df$name) # First step: copy vector and make it factor
# Change levels:
levels(df$type) <- list(
animal = c("cow", "pig"),
bird = c("eagle", "pigeon")
)
df
# name type
# 1 cow animal
# 2 pig animal
# 3 eagle bird
# 4 pigeon bird
You could write simple function as a wrapper:
changelevels <- function(f, ...) {
f <- as.factor(f)
levels(f) <- list(...)
f
}
df <- data.frame(name = c('cow','pig','eagle','pigeon'),
stringsAsFactors = TRUE)
df$type <- changelevels(df$name, animal=c("cow", "pig"), bird=c("eagle", "pigeon"))
Change you buildToolsVersion to some other version and sync, change it back and sync again. It will work again.
For anyone that also need to add into 2d associative array, you can also use answer given above, and use the code like this
$data[$category]["test"] = $question
you can then call it (to test out the result by:
echo $data[$category]["test"];
which should print $question
Apparently you can now create folders in S3. I'm not sure since when, but I have a bucket in "Standard" zone and can choose Create Folder from Action dropdown.
Changing the ng-src
value is actually very simple. Like this:
<html ng-app>
<head>
<script src="https://ajax.googleapis.com/ajax/libs/angularjs/1.0.6/angular.min.js"></script>
</head>
<body>
<img ng-src="{{img_url}}">
<button ng-click="img_url = 'https://farm4.staticflickr.com/3261/2801924702_ffbdeda927_d.jpg'">Click</button>
</body>
</html>
Here is a jsFiddle of a working example: http://jsfiddle.net/Hx7B9/2/
I know that people recommend staying away from rt.exec(String), but this works, and I don't know how to change it into the array version.
rt.exec("cmd.exe /c cd \""+new_dir+"\" & start cmd.exe /k \"java -flag -flag -cp terminal-based-program.jar\"");
This is an embed example of video played in HD 1080.
<iframe width="560" height="315" src="http://youtube.com/v/IplDUxTQxsE&vq=hd1080" frameborder="0" allowfullscreen="1"></iframe>
Let's break apart the code:http://youtube.com/v/
video_id
&vq=hd1080
Video id for that video: IplDUxTQxsE you will see this type of random code in the link of every YouTube video.
So far so good, this trick works for playing full HD videos directly on webpages!
You can change the quality to 720 too. &vq=hd720
This is the best way i found:
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-jar-plugin</artifactId>
<version>2.4</version>
<configuration>
<archive>
<manifest>
<addClasspath>true</addClasspath>
<mainClass>com.myDomain.etc.MainClassName</mainClass>
<classpathPrefix>dependency-jars/</classpathPrefix>
</manifest>
</archive>
</configuration>
</plugin>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-dependency-plugin</artifactId>
<version>2.5.1</version>
<executions>
<execution>
<id>copy-dependencies</id>
<phase>package</phase>
<goals>
<goal>copy-dependencies</goal>
</goals>
<configuration>
<outputDirectory>
${project.build.directory}/dependency-jars/
</outputDirectory>
</configuration>
</execution>
</executions>
</plugin>
With this configuration, all dependencies will be located in /dependency-jars
. My application has no Main
class, just context ones, but one of my dependencies do have a Main
class (com.myDomain.etc.MainClassName
) that starts the JMX server, and receives a start
or a stop
parameter. So with this i was able to start my application like this:
java -jar ./lib/TestApp-1.0-SNAPSHOT.jar start
I wait it be useful for you all.
yourString += "newString"
This way you can concatenate a string
All those solutions above doesn't work for me with Spring 5 and Hibernate 5 and Quartz 2.2.3 when I want to call transactional methods!
I therefore implemented this solution which automatically starts the scheduler and triggers the jobs. I found a lot of that code at dzone. Because I don't need to create triggers and jobs dynamically I wanted the static triggers to be pre defined via Spring Configuration and only the jobs to be exposed as Spring Components.
My basic configuration look like this
@Configuration
public class QuartzConfiguration {
@Autowired
ApplicationContext applicationContext;
@Bean
public SchedulerFactoryBean scheduler(@Autowired JobFactory jobFactory) throws IOException {
SchedulerFactoryBean sfb = new SchedulerFactoryBean();
sfb.setOverwriteExistingJobs(true);
sfb.setAutoStartup(true);
sfb.setJobFactory(jobFactory);
Trigger[] triggers = new Trigger[] {
cronTriggerTest().getObject()
};
sfb.setTriggers(triggers);
return sfb;
}
@Bean
public JobFactory cronJobFactory() {
AutowiringSpringBeanJobFactory jobFactory = new AutowiringSpringBeanJobFactory();
jobFactory.setApplicationContext(applicationContext);
return jobFactory;
}
@Bean
public CronTriggerFactoryBean cronTriggerTest() {
CronTriggerFactoryBean tfb = new CronTriggerFactoryBean();
tfb.setCronExpression("0 * * ? * * *");
JobDetail jobDetail = JobBuilder.newJob(CronTest.class)
.withIdentity("Testjob")
.build()
;
tfb.setJobDetail(jobDetail);
return tfb;
}
}
As you can see, you have the scheduler and a simple test trigger which is defined via a cron expression. You can obviously choose whatever scheduling expression you like. You then need the AutowiringSpringBeanJobFactory which goes like this
public final class AutowiringSpringBeanJobFactory extends SpringBeanJobFactory implements ApplicationContextAware {
@Autowired
private ApplicationContext applicationContext;
private SchedulerContext schedulerContext;
@Override
public void setApplicationContext(final ApplicationContext context) {
this.applicationContext = context;
}
@Override
protected Object createJobInstance(final TriggerFiredBundle bundle) throws Exception {
Job job = applicationContext.getBean(bundle.getJobDetail().getJobClass());
BeanWrapper bw = PropertyAccessorFactory.forBeanPropertyAccess(job);
MutablePropertyValues pvs = new MutablePropertyValues();
pvs.addPropertyValues(bundle.getJobDetail().getJobDataMap());
pvs.addPropertyValues(bundle.getTrigger().getJobDataMap());
if (this.schedulerContext != null)
{
pvs.addPropertyValues(this.schedulerContext);
}
bw.setPropertyValues(pvs, true);
return job;
}
public void setSchedulerContext(SchedulerContext schedulerContext) {
this.schedulerContext = schedulerContext;
super.setSchedulerContext(schedulerContext);
}
}
In here you wire your normal application context and your job together. This is the important gap because normally Quartz starts it's worker threads which have no connection to your application context. That is the reason why you can't execute Transactional mehtods. The last thing missing is a job. It can look like that
@Component
public class CronTest implements Job {
@Autowired
private MyService s;
public CronTest() {
}
@Override
public void execute(JobExecutionContext context) throws JobExecutionException {
s.execute();
}
}
It's not a perfect solution because you an extra class only for calling your service method. But nevertheless it works.
You can actually send it as JSON the following way:
// Build the JSON object to pass parameters
JSONObject jsonObj = new JSONObject();
jsonObj.put("username", username);
jsonObj.put("apikey", apikey);
// Create the POST object and add the parameters
HttpPost httpPost = new HttpPost(url);
StringEntity entity = new StringEntity(jsonObj.toString(), HTTP.UTF_8);
entity.setContentType("application/json");
httpPost.setEntity(entity);
HttpClient client = new DefaultHttpClient();
HttpResponse response = client.execute(httpPost);
We can write something like this. I have used with python-3.7.x
import sys
def print_fn():
print("Hi")
def sum_fn(a, b):
print(a + b)
if __name__ == "__main__":
args = sys.argv
# args[0] = current file
# args[1] = function name
# args[2:] = function args : (*unpacked)
globals()[args[1]](*args[2:])
python demo.py print_fn
python demo.py sum_fn 5 8
The following example uses the GroupBy method to return objects that are grouped by PersonID
.
var results = persons.GroupBy(x => x.PersonID)
.Select(x => (PersonID: x.Key, Cars: x.Select(p => p.car).ToList())
).ToList();
Or
var results = persons.GroupBy(
person => person.PersonID,
(key, groupPerson) => (PersonID: key, Cars: groupPerson.Select(x => x.car).ToList()));
Or
var results = from person in persons
group person by person.PersonID into groupPerson
select (PersonID: groupPerson.Key, Cars: groupPerson.Select(x => x.car).ToList());
Or you can use ToLookup
, Basically ToLookup
uses EqualityComparer<TKey>
.Default to compare keys and do what you should do manually when using group by and to dictionary.
i think it's excuted inmemory
ILookup<int, string> results = persons.ToLookup(
person => person.PersonID,
person => person.car);
Since Java 11 you can simply use String.repeat(count)
to solve your problem.
Returns a string whose value is the concatenation of this string repeated
count
times.If this string is empty or
count
is zero then the empty string is returned.
So instead of a loop your code would just look like this:
" ".repeat(length);
The problem is, os.path.join
doesn't take a list
as argument, it has to be separate arguments.
This is where *
, the 'splat' operator comes into play...
I can do
>>> s = "c:/,home,foo,bar,some.txt".split(",")
>>> os.path.join(*s)
'c:/home\\foo\\bar\\some.txt'
df['Column_Name']=df['Column_Name'].astype(int)
First, the class must implements the click listenener :
implements OnItemClickListener
Then set a listener to the ListView
yourList.setOnItemclickListener(this);
And finally, create the clic method:
@Override
public void onItemClick(AdapterView<?> parent, View view, int position,
long id) {
Toast.makeText(MainActivity.this, "You Clicked at ",
Toast.LENGTH_SHORT).show();
}
It looks like the cause of the errors are:
You're currently loading the source file in the src
directory instead of the built file in the dist
directory (you can see what the intended distributed file is here). This means that you're using the native source code in an unaltered/unbundled state, leading to the following error: Uncaught SyntaxError: Cannot use import statement outside a module
. This should be fixed by using the bundled version since the package is using rollup to create a bundle.
The reason you're getting the Uncaught ReferenceError: ms is not defined
error is because modules are scoped, and since you're loading the library using native modules, ms
is not in the global scope and is therefore not accessible in the following script tag.
It looks like you should be able to load the dist
version of this file to have ms
defined on the window
. Check out this example from the library author to see an example of how this can be done.
I faced a similar issue while copying a sheet to another workbook. I prefer to avoid using 'activesheet' though as it has caused me issues in the past. Hence I wrote a function to perform this inline with my needs. I add it here for those who arrive via google as I did:
The main issue here is that copying a visible sheet to the last index position results in Excel repositioning the sheet to the end of the visible sheets. Hence copying the sheet to the position after the last visible sheet sorts this issue. Even if you are copying hidden sheets.
Function Copy_WS_to_NewWB(WB As Workbook, WS As Worksheet) As Worksheet
'Creates a copy of the specified worksheet in the specified workbook
' Accomodates the fact that there may be hidden sheets in the workbook
Dim WSInd As Integer: WSInd = 1
Dim CWS As Worksheet
'Determine the index of the last visible worksheet
For Each CWS In WB.Worksheets
If CWS.Visible Then If CWS.Index > WSInd Then WSInd = CWS.Index
Next CWS
WS.Copy after:=WB.Worksheets(WSInd)
Set Copy_WS_to_NewWB = WB.Worksheets(WSInd + 1)
End Function
To use this function for the original question (ie in the same workbook) could be done with something like...
Set test = Copy_WS_to_NewWB(Workbooks(1), Workbooks(1).Worksheets(1))
test.name = "test sheet name"
EDIT 04/11/2020 from –user3598756 Adding a slight refactoring of the above code
Function CopySheetToWorkBook(targetWb As Workbook, shToBeCopied As Worksheet, copiedSh As Worksheet) As Boolean
'Creates a copy of the specified worksheet in the specified workbook
' Accomodates the fact that there may be hidden sheets in the workbook
Dim lastVisibleShIndex As Long
Dim iSh As Long
On Error GoTo SafeExit
With targetWb
'Determine the index of the last visible worksheet
For iSh = .Sheets.Count To 1 Step -1
If .Sheets(iSh).Visible Then
lastVisibleShIndex = iSh
Exit For
End If
Next
shToBeCopied.Copy after:=.Sheets(lastVisibleShIndex)
Set copiedSh = .Sheets(lastVisibleShIndex + 1)
End With
CopySheetToWorkBook = True
Exit Function
SafeExit:
End Function
other than using different (more descriptive?) variable names, the refactoring manily deals with:
turning the Function type into a `Boolean while including returned (copied) worksheet within function parameters list this, to let the calling Sub hande possible errors, like
Dim WB as Workbook: Set WB = ThisWorkbook ' as an example
Dim sh as Worksheet: Set sh = ActiveSheet ' as an example
Dim copiedSh as Worksheet
If CopySheetToWorkBook(WB, sh, copiedSh) Then
' go on with your copiedSh sheet
Else
Msgbox "Error while trying to copy '" & sh.Name & "'" & vbcrlf & err.Description
End If
having the For - Next loop stepping from last sheet index backwards and exiting at first visible sheet occurence, since we're after the "last" visible one
The specific format is:
git commit --author="John Doe <[email protected]>" -m "Impersonation is evil."
downloaded Sql server management 2008 r2 and got it installed. Its getting installed but when I try to connect it via .\SQLEXPRESS it shows error. DO I need to install any SQL service on my system?
You installed management studio which is just a management interface to SQL Server. If you didn't (which is what it seems like) already have SQL Server installed, you'll need to install it in order to have it on your system and use it.
http://www.microsoft.com/en-us/download/details.aspx?id=1695
You are trying to pass pointers (which you do not delete, thus leaking memory) where references are needed. You do not really need pointers here:
Complex firstComplexNumber(81, 93);
Complex secondComplexNumber(31, 19);
cout << "Numarul complex este: " << firstComplexNumber << endl;
// ^^^^^^^^^^^^^^^^^^ No need to dereference now
// ...
Complex::distanta(firstComplexNumber, secondComplexNumber);
It seems that Scrapy
fails because installing Twisted
fails, which fails because incremental
fails. Running pip install --upgrade pip && pip install --upgrade incremental
fixed this for me.
Array of arrays (jagged arrays) are faster than multi-dimensional arrays and can be used more effectively. Multidimensional arrays have nicer syntax.
If you write some simple code using jagged and multidimensional arrays and then inspect the compiled assembly with an IL disassembler you will see that the storage and retrieval from jagged (or single dimensional) arrays are simple IL instructions while the same operations for multidimensional arrays are method invocations which are always slower.
Consider the following methods:
static void SetElementAt(int[][] array, int i, int j, int value)
{
array[i][j] = value;
}
static void SetElementAt(int[,] array, int i, int j, int value)
{
array[i, j] = value;
}
Their IL will be the following:
.method private hidebysig static void SetElementAt(int32[][] 'array',
int32 i,
int32 j,
int32 'value') cil managed
{
// Code size 7 (0x7)
.maxstack 8
IL_0000: ldarg.0
IL_0001: ldarg.1
IL_0002: ldelem.ref
IL_0003: ldarg.2
IL_0004: ldarg.3
IL_0005: stelem.i4
IL_0006: ret
} // end of method Program::SetElementAt
.method private hidebysig static void SetElementAt(int32[0...,0...] 'array',
int32 i,
int32 j,
int32 'value') cil managed
{
// Code size 10 (0xa)
.maxstack 8
IL_0000: ldarg.0
IL_0001: ldarg.1
IL_0002: ldarg.2
IL_0003: ldarg.3
IL_0004: call instance void int32[0...,0...]::Set(int32,
int32,
int32)
IL_0009: ret
} // end of method Program::SetElementAt
When using jagged arrays you can easily perform such operations as row swap and row resize. Maybe in some cases usage of multidimensional arrays will be more safe, but even Microsoft FxCop tells that jagged arrays should be used instead of multidimensional when you use it to analyse your projects.
The simplest way that doesn't require third party libraries it to create a URL object and then call either openConnection or openStream on it. Note that this is a pretty basic API, so you won't have a lot of control over the headers.
Guys it has very simple solution
https://developers.google.com/instance-id/guides/android-implementation#generate_a_token
Note: If your app used tokens that were deleted by deleteInstanceID, your app will need to generate replacement tokens.
In stead of deleting instance Id, delete only token:
String authorizedEntity = PROJECT_ID;
String scope = "GCM";
InstanceID.getInstance(context).deleteToken(authorizedEntity,scope);
Expanding on @Shripad's and @Ivan's answer, I would recommend that you use Node.js's standard module.export functionality.
In your file for constants (e.g. constants.js
), you'd write constants like this:
const CONST1 = 1;
module.exports.CONST1 = CONST1;
const CONST2 = 2;
module.exports.CONST2 = CONST2;
Then in the file in which you want to use those constants, write the following code:
const {CONST1 , CONST2} = require('./constants.js');
If you've never seen the const { ... }
syntax before: that's destructuring assignment.
You can present a UIAlertController
from a popover by using UIPopoverPresentationController
.
UIViewController *self; // code assumes you're in a view controller
UIButton *button; // the button you want to show the popup sheet from
UIAlertController *alertController;
UIAlertAction *destroyAction;
UIAlertAction *otherAction;
alertController = [UIAlertController alertControllerWithTitle:nil
message:nil
preferredStyle:UIAlertControllerStyleActionSheet];
destroyAction = [UIAlertAction actionWithTitle:@"Remove All Data"
style:UIAlertActionStyleDestructive
handler:^(UIAlertAction *action) {
// do destructive stuff here
}];
otherAction = [UIAlertAction actionWithTitle:@"Blah"
style:UIAlertActionStyleDefault
handler:^(UIAlertAction *action) {
// do something here
}];
// note: you can control the order buttons are shown, unlike UIActionSheet
[alertController addAction:destroyAction];
[alertController addAction:otherAction];
[alertController setModalPresentationStyle:UIModalPresentationPopover];
UIPopoverPresentationController *popPresenter = [alertController
popoverPresentationController];
popPresenter.sourceView = button;
popPresenter.sourceRect = button.bounds;
[self presentViewController:alertController animated:YES completion:nil];
Editing for Swift 4.2, though there are many blogs available for the same but it may save your time to go and search for them.
if let popoverController = yourAlert.popoverPresentationController {
popoverController.sourceView = self.view //to set the source of your alert
popoverController.sourceRect = CGRect(x: self.view.bounds.midX, y: self.view.bounds.midY, width: 0, height: 0) // you can set this as per your requirement.
popoverController.permittedArrowDirections = [] //to hide the arrow of any particular direction
}