The linked list holds operations on the shared data structure.
For example, if I have a stack, it will be manipulated with pushes and pops. The linked list would be a set of pushes and pops on the pseudo-shared stack. Each thread sharing that stack will actually have a local copy, and to get to the current shared state, it'll walk the linked list of operations, and apply each operation in order to its local copy of the stack. When it reaches the end of the linked list, its local copy holds the current state (though, of course, it's subject to becoming stale at any time).
In the traditional model, you'd have some sort of locks around each push and pop. Each thread would wait to obtain a lock, then do a push or pop, then release the lock.
In this model, each thread has a local snapshot of the stack, which it keeps synchronized with other threads' view of the stack by applying the operations in the linked list. When it wants to manipulate the stack, it doesn't try to manipulate it directly at all. Instead, it simply adds its push or pop operation to the linked list, so all the other threads can/will see that operation and they can all stay in sync. Then, of course, it applies the operations in the linked list, and when (for example) there's a pop it checks which thread asked for the pop. It uses the popped item if and only if it's the thread that requested this particular pop.
Adding my solution, which is almost identical to Herman Kan's, with a small wrinkle to allow it to work for my project.
Create a custom error controller:
public class Error404Controller : BaseController
{
[HttpGet]
public ActionResult PageNotFound()
{
Response.StatusCode = 404;
return View("404");
}
}
Then create a custom controller factory:
public class CustomControllerFactory : DefaultControllerFactory
{
protected override IController GetControllerInstance(RequestContext requestContext, Type controllerType)
{
return controllerType == null ? new Error404Controller() : base.GetControllerInstance(requestContext, controllerType);
}
}
Finally, add an override to the custom error controller:
protected override void HandleUnknownAction(string actionName)
{
var errorRoute = new RouteData();
errorRoute.Values.Add("controller", "Error404");
errorRoute.Values.Add("action", "PageNotFound");
new Error404Controller().Execute(new RequestContext(HttpContext, errorRoute));
}
And that's it. No need for Web.config changes.
If you want to call functions on components from outside React, you can call them on the return value of renderComponent:
var Child = React.createClass({…});
var myChild = React.renderComponent(Child);
myChild.someMethod();
The only way to get a handle to a React Component instance outside of React is by storing the return value of React.renderComponent. Source.
For the question
How can i run a jar file in command prompt but with arguments
.
To pass arguments to the jar file at the time of execution
java -jar myjar.jar arg1 arg2
In the main() method of "Main-Class" [mentioned in the manifest.mft file]of your JAR file. you can retrieve them like this:
String arg1 = args[0];
String arg2 = args[1];
Just a complement to other answers and some clarification, if you are allowed to use C99.
+-------+----------------+-------------------------+--------------------+
| Name | Characteristic | Dependence in stdbool.h | Value |
+-------+----------------+-------------------------+--------------------+
| _Bool | Native type | Don't need header | |
+-------+----------------+-------------------------+--------------------+
| bool | Macro | Yes | Translate to _Bool |
+-------+----------------+-------------------------+--------------------+
| true | Macro | Yes | Translate to 1 |
+-------+----------------+-------------------------+--------------------+
| false | Macro | Yes | Translate to 0 |
+-------+----------------+-------------------------+--------------------+
Some of my preferences:
_Bool
or bool
? Both are fine, but bool
looks better than the keyword _Bool
.bool
and _Bool
are: false
or true
. Assigning 0
or 1
instead of false
or true
is valid, but is harder to read and understand the logic flow.Some info from the standard:
_Bool
is NOT unsigned int
, but is part of the group unsigned integer types. It is large enough to hold the values 0
or 1
.bool
true
and false
but sure is not a good idea. This ability is considered obsolescent and will be removed in future._Bool
or bool
, if the scalar value is equal to 0
or compares to 0
it will be 0
, otherwise the result is 1
: _Bool x = 9;
9
is converted to 1
when assigned to x
._Bool
is 1 byte (8 bits), usually the programmer is tempted to try to use the other bits, but is not recommended, because the only guaranteed that is given is that only one bit is use to store data, not like type char
that have 8 bits available.I am also facing the same issue and got the resolution after a day :
The exception is coming because System needs Geckodriver to run the Selenium test case. You can try this code under the main Method in Java
System.setProperty("webdriver.gecko.driver","path of/geckodriver.exe");
DesiredCapabilities capabilities=DesiredCapabilities.firefox();
capabilities.setCapability("marionette", true);
WebDriver driver = new FirefoxDriver(capabilities);
For more information You can go to this https://developer.mozilla.org/en-US/docs/Mozilla/QA/Marionette/WebDriver link.
Please let me know if the issue doesn't get resolved.
's up guys i read every single forum about this topic i still had problem (occurred trying to project from git)
after 4 hours and a lot of swearing i solved this issue by myself just by changing target framework setting in project properties (right click on project -> properties) -> application and changed target framework from .net core 3.0 to .net 5.0 i hope it will help anybody
happy coding gl hf nerds
You can use ORDER BY
inside the GROUP_CONCAT
function in this way:
SELECT li.client_id, group_concat(li.percentage ORDER BY li.views ASC) AS views,
group_concat(li.percentage ORDER BY li.percentage ASC)
FROM li GROUP BY client_id
You have to set the height
for the parents (container and child) explicitly, here is another work-around (if you don't want to set that height explicitly):
.child {
width: 30px;
background-color: red;
display: table-cell;
vertical-align: top;
position:relative;
}
.content {
position:absolute;
top:0;
bottom:0;
width:100%;
background-color: blue;
}
const absolutePath = path.join(__dirname, some, dir);
vs.
const absolutePath = path.resolve(__dirname, some, dir);
path.join
will concatenate __dirname
which is the directory name of the current file concatenated with values of some
and dir
with platform-specific separator.
Whereas
path.resolve
will process __dirname
, some
and dir
i.e. from right to left prepending it by processing it.
If any of the values of some
or dir
corresponds to a root path then the previous path will be omitted and process rest by considering it as root
In order to better understand the concept let me explain both a little bit more detail as follows:-
The path.join
and path.resolve
are two different methods or functions of the path module provided by nodejs.
Where both accept a list of paths but the difference comes in the result i.e. how they process these paths.
path.join
concatenates all given path segments together using the platform-specific separator as a delimiter, then normalizes the resulting path. While the path.resolve()
process the sequence of paths from right to left, with each subsequent path prepended until an absolute path is constructed.
When no arguments supplied
The following example will help you to clearly understand both concepts:-
My filename is index.js
and the current working directory is E:\MyFolder\Pjtz\node
const path = require('path');
console.log("path.join() : ", path.join());
// outputs .
console.log("path.resolve() : ", path.resolve());
// outputs current directory or equivalent to __dirname
Result
? node index.js
path.join() : .
path.resolve() : E:\MyFolder\Pjtz\node
path.resolve()
method will output the absolute path whereas the path.join()
returns . representing the current working directory if nothing is provided
When some root path is passed as arguments
const path=require('path');
console.log("path.join() : " ,path.join('abc','/bcd'));
console.log("path.resolve() : ",path.resolve('abc','/bcd'));
Result i
? node index.js
path.join() : abc\bcd
path.resolve() : E:\bcd
path.join()
only concatenates the input list with platform-specific separator while the path.resolve()
process the sequence of paths from right to left, with each subsequent path prepended until an absolute path is constructed.
Example for delete some records from master table and corresponding records from two detail tables:
BEGIN TRAN
-- create temporary table for deleted IDs
CREATE TABLE #DeleteIds (
Id INT NOT NULL PRIMARY KEY
)
-- save IDs of master table records (you want to delete) to temporary table
INSERT INTO #DeleteIds(Id)
SELECT DISTINCT mt.MasterTableId
FROM MasterTable mt
INNER JOIN ...
WHERE ...
-- delete from first detail table using join syntax
DELETE d
FROM DetailTable_1 D
INNER JOIN #DeleteIds X
ON D.MasterTableId = X.Id
-- delete from second detail table using IN clause
DELETE FROM DetailTable_2
WHERE MasterTableId IN (
SELECT X.Id
FROM #DeleteIds X
)
-- and finally delete from master table
DELETE d
FROM MasterTable D
INNER JOIN #DeleteIds X
ON D.MasterTableId = X.Id
-- do not forget to drop the temp table
DROP TABLE #DeleteIds
COMMIT
BrixenDK is right.
.ajaxStop()
callback executed when all ajax call completed. This is a best place to put your handler.
$(document).ajaxStop(function(){
window.location.reload();
});
In my case I use chrono and c function localtime_r which is thread-safe (in opposition to std::localtime).
#include <iostream>
#include <chrono>
#include <ctime>
#include <time.h>
#include <iomanip>
int main() {
std::chrono::system_clock::time_point now = std::chrono::system_clock::now();
std::time_t currentTime = std::chrono::system_clock::to_time_t(now);
std::chrono::milliseconds now2 = std::chrono::duration_cast<std::chrono::milliseconds>(now.time_since_epoch());
struct tm currentLocalTime;
localtime_r(¤tTime, ¤tLocalTime);
char timeBuffer[80];
std::size_t charCount { std::strftime( timeBuffer, 80,
"%b %d %T",
¤tLocalTime)
};
if (charCount == 0) return -1;
std::cout << timeBuffer << "." << std::setfill('0') << std::setw(3) << now2.count() % 1000 << std::endl;
return 0;
}
Using the InstallCert
to generate the jssecacerts
file and do
-Djavax.net.ssl.trustStore=/path/to/jssecacerts
worked great.
rm -r <folder_name>
c:\>rm -r "my photos"
Anonymous classes must extend or implement something, like any other Java class, even if it's just java.lang.Object
.
For example:
Runnable r = new Runnable() {
public void run() { ... }
};
Here, r
is an object of an anonymous class which implements Runnable
.
An anonymous class can extend another class using the same syntax:
SomeClass x = new SomeClass() {
...
};
What you can't do is implement more than one interface. You need a named class to do that. Neither an anonymous inner class, nor a named class, however, can extend more than one class.
underscore.js is using the following
toString = Object.prototype.toString;
_.isArray = nativeIsArray || function(obj) {
return toString.call(obj) == '[object Array]';
};
_.isObject = function(obj) {
return obj === Object(obj);
};
_.isFunction = function(obj) {
return toString.call(obj) == '[object Function]';
};
#include<stdio.h>
static char day_tab[2][13] = {
{0,31,28,31,30,31,30,31,31,30,31,30,31},
{0,31,29,31,30,31,30,31,31,30,31,30,31}
};
int main()
{
int year,month;
scanf("%d%d%d",&year,&month,&day);
printf("%d\n",day_of_year(year,month,day));
return 0;
}
int day_of_year(int year ,int month,int day)
{
int i,leap;
leap = year%4 == 0 && year%100 != 0 || year%400 == 0;
if(month < 1 || month >12)
return -1;
if (day <1 || day > day_tab[leap][month])
return -1;
for(i= 1;i<month ; i++)
{
day += day_tab[leap][year];
}
return day;
}
try this code I think it is more optimal.
HeaderRow is used to repeat the header of the table for each new page automatically
BaseFont bfTimes = BaseFont.CreateFont(BaseFont.TIMES_ROMAN, BaseFont.CP1252, false);
iTextSharp.text.Font times = new iTextSharp.text.Font(bfTimes, 6, iTextSharp.text.Font.NORMAL, iTextSharp.text.BaseColor.BLACK);
PdfPTable table = new PdfPTable(10) { HorizontalAlignment = Element.ALIGN_CENTER, WidthPercentage = 100, HeaderRows = 2 };
table.SetWidths(new float[] { 2f, 6f, 6f, 3f, 5f, 8f, 5f, 5f, 5f, 5f });
table.AddCell(new PdfPCell(new Phrase("SER.\nNO.", times)) { Rowspan = 2, GrayFill = 0.95f });
table.AddCell(new PdfPCell(new Phrase("TYPE OF SHIPPING", times)) { GrayFill = 0.95f });
table.AddCell(new PdfPCell(new Phrase("ORDER NO.", times)) { GrayFill = 0.95f });
table.AddCell(new PdfPCell(new Phrase("QTY.", times)) { GrayFill = 0.95f });
table.AddCell(new PdfPCell(new Phrase("DISCHARGE PPORT", times)) { GrayFill = 0.95f });
table.AddCell(new PdfPCell(new Phrase("DESCRIPTION OF GOODS", times)) { Rowspan = 2, GrayFill = 0.95f });
table.AddCell(new PdfPCell(new Phrase("LINE DOC. RECL DATE", times)) { GrayFill = 0.95f });
table.AddCell(new PdfPCell(new Phrase("CLEARANCE DATE", times)) { Rowspan = 2, GrayFill = 0.95f });
table.AddCell(new PdfPCell(new Phrase("CUSTOM PERMIT NO.", times)) { Rowspan = 2, GrayFill = 0.95f });
table.AddCell(new PdfPCell(new Phrase("DISPATCH DATE", times)) { Rowspan = 2, GrayFill = 0.95f });
table.AddCell(new PdfPCell(new Phrase("AWB/BL NO.", times)) { GrayFill = 0.95f });
table.AddCell(new PdfPCell(new Phrase("COMPLEX NAME", times)) { GrayFill = 0.95f });
table.AddCell(new PdfPCell(new Phrase("G. W. Kgs.", times)) { GrayFill = 0.95f });
table.AddCell(new PdfPCell(new Phrase("DESTINATION", times)) { GrayFill = 0.95f });
table.AddCell(new PdfPCell(new Phrase("OWNER DOC. RECL DATE", times)) { GrayFill = 0.95f });
deleting old jars from .m2 and updating maven project should be primary step. In most of the cases it resolves the issue.The reason for this issue is mostly corrupted old jars
When I tried yorammi's solution I was taken to Slack, but not the channel I specified.
I had better luck with:
https://<organization>.slack.com/messages/#<channel>/
and
https://<organization>.slack.com/messages/<channel>/details/
Although, they were both still displayed in a browser window and not the app.
HTML and CSS only.
#leftsideMenu ul li {_x000D_
border-bottom: 1px dashed lightgray;_x000D_
background-color: cadetblue;_x000D_
}_x000D_
_x000D_
#leftsideMenu ul li a {_x000D_
padding: 8px 20px 8px 20px;_x000D_
color: white;_x000D_
display: block;_x000D_
}_x000D_
_x000D_
#leftsideMenu ul li a:hover {_x000D_
background-color: lightgreen;_x000D_
transition: 0.5s;_x000D_
padding-left: 30px;_x000D_
padding-right: 10px;_x000D_
}
_x000D_
<div id="leftsideMenu">_x000D_
<ul style="list-style-type:none">_x000D_
<li><a href="#">India</a></li>_x000D_
<li><a href="#">USA</a></li>_x000D_
<li><a href="#">Russia</a></li>_x000D_
<li><a href="#">China</a></li>_x000D_
<li><a href="#">Afganistan</a></li>_x000D_
<li><a href="#">Landon</a></li>_x000D_
<li><a href="#">Scotland</a></li>_x000D_
<li><a href="#">Ireland</a></li>_x000D_
</ul>_x000D_
</div>
_x000D_
I use exactly the same sass mixin placeholder as NoDirection wrote. I find it in sass mixins collection here and I'm very satisfied with it. There's a text that explains a mixins option more.
I was integrating ZXING into an Android application and there were no good sources for the input all over, I will give you a hint on what worked for me - because it turned out to be very easy.
There is a real handy git repository that provides the zxing
android library project as an AAR archive.
All you have to do is add this to your build.gradle
repositories {
jcenter()
}
dependencies {
implementation 'com.journeyapps:zxing-android-embedded:3.0.2@aar'
implementation 'com.google.zxing:core:3.2.0'
}
and Gradle does all the magic to compile the code and makes it accessible in your app.
To start the Scanner afterwards, use this class/method: From the Activity:
new IntentIntegrator(this).initiateScan(); // `this` is the current Activity
From a Fragment:
IntentIntegrator.forFragment(this).initiateScan(); // `this` is the current Fragment
// If you're using the support library, use IntentIntegrator.forSupportFragment(this) instead.
There are several customizing options:
IntentIntegrator integrator = new IntentIntegrator(this);
integrator.setDesiredBarcodeFormats(IntentIntegrator.ONE_D_CODE_TYPES);
integrator.setPrompt("Scan a barcode");
integrator.setCameraId(0); // Use a specific camera of the device
integrator.setBeepEnabled(false);
integrator.setBarcodeImageEnabled(true);
integrator.initiateScan();
They have a sample-project and are providing several integration examples:
If you already visited the link you going to see that I just copy&pasted the code from the git README. If not, go there to get some more insight and code examples.
There are two ways. the first is to completely refresh the page using typical form submission
//your_page.php
<?php
$saveSuccess = null;
$saveMessage = null;
if($_SERVER['REQUEST_METHOD'] == 'POST') {
// if form has been posted process data
// you dont need the addContact function you jsut need to put it in a new array
// and it doesnt make sense in this context so jsut do it here
// then used json_decode and json_decode to read/save your json in
// saveContact()
$data = array(
'fullname' = $_POST['fullname'],
'email' => $_POST['email'],
'phone' => $_POST['phone']
);
// always return true if you save the contact data ok or false if it fails
if(($saveSuccess = saveContact($data)) {
$saveMessage = 'Your submission has been saved!';
} else {
$saveMessage = 'There was a problem saving your submission.';
}
}
?>
<!-- your other html -->
<?php if($saveSuccess !== null): ?>
<p class="flash_message"><?php echo $saveMessage ?></p>
<?php endif; ?>
<form action="your_page.php" method="post">
<fieldset>
<legend>Add New Contact</legend>
<input type="text" name="fullname" placeholder="First name and last name" required /> <br />
<input type="email" name="email" placeholder="[email protected]" required /> <br />
<input type="text" name="phone" placeholder="Personal phone number: mobile, home phone etc." required /> <br />
<input type="submit" name="submit" class="button" value="Add Contact" onClick="" />
<input type="button" name="cancel" class="button" value="Reset" />
</fieldset>
</form>
<!-- the rest of your HTML -->
The second way would be to use AJAX. to do that youll want to completely seprate the form processing into a separate file:
// process.php
$response = array();
if($_SERVER['REQUEST_METHOD'] == 'POST') {
// if form has been posted process data
// you dont need the addContact function you jsut need to put it in a new array
// and it doesnt make sense in this context so jsut do it here
// then used json_decode and json_decode to read/save your json in
// saveContact()
$data = array(
'fullname' => $_POST['fullname'],
'email' => $_POST['email'],
'phone' => $_POST['phone']
);
// always return true if you save the contact data ok or false if it fails
$response['status'] = saveContact($data) ? 'success' : 'error';
$response['message'] = $response['status']
? 'Your submission has been saved!'
: 'There was a problem saving your submission.';
header('Content-type: application/json');
echo json_encode($response);
exit;
}
?>
And then in your html/js
<form id="add_contact" action="process.php" method="post">
<fieldset>
<legend>Add New Contact</legend>
<input type="text" name="fullname" placeholder="First name and last name" required /> <br />
<input type="email" name="email" placeholder="[email protected]" required /> <br />
<input type="text" name="phone" placeholder="Personal phone number: mobile, home phone etc." required /> <br />
<input id="add_contact_submit" type="submit" name="submit" class="button" value="Add Contact" onClick="" />
<input type="button" name="cancel" class="button" value="Reset" />
</fieldset>
</form>
<script type="text/javascript">
$(function(){
$('#add_contact_submit').click(function(e){
e.preventDefault();
$form = $(this).closest('form');
// if you need to then wrap this ajax call in conditional logic
$.ajax({
url: $form.attr('action'),
type: $form.attr('method'),
dataType: 'json',
success: function(responseJson) {
$form.before("<p>"+responseJson.message+"</p>");
},
error: function() {
$form.before("<p>There was an error processing your request.</p>");
}
});
});
});
</script>
You can't. CSS does not support "events". Dare I ask what you need it for? Check out this post here on SO. I can't think of a reason why you would want to hook up an event to a style change. I'm assuming here that the style change is triggered somwhere else by a piece of javascript. Why not add extra logic there?
I see in your code that you are trying to pass an ARRAY to POST action. In that case follow below working code -
<script src="~/Scripts/jquery-1.10.2.min.js"></script>
<script>
function submitForm() {
var roles = ["role1", "role2", "role3"];
jQuery.ajax({
type: "POST",
url: "@Url.Action("AddUser")",
dataType: "json",
contentType: "application/json; charset=utf-8",
data: JSON.stringify(roles),
success: function (data) { alert(data); },
failure: function (errMsg) {
alert(errMsg);
}
});
}
</script>
<input type="button" value="Click" onclick="submitForm()"/>
And the controller action is going to be -
public ActionResult AddUser(List<String> Roles)
{
return null;
}
Then when you click on the button -
For Ubuntu - pip3 install opencv-python
sudo apt-get install python3-opencv
It doesn't make a lot of sense, the original GAC was already quite capable of storing different versions of assemblies. And there's little reason to assume a program will ever accidentally reference the wrong assembly, all the .NET 4 assemblies got the [AssemblyVersion] bumped up to 4.0.0.0. The new in-process side-by-side feature should not change this.
My guess: there were already too many .NET projects out there that broke the "never reference anything in the GAC directly" rule. I've seen it done on this site several times.
Only one way to avoid breaking those projects: move the GAC. Back-compat is sacred at Microsoft.
This is the easiest way I think
var reverse = function(str) {_x000D_
var arr = [];_x000D_
_x000D_
for (var i = 0, len = str.length; i <= len; i++) {_x000D_
arr.push(str.charAt(len - i))_x000D_
}_x000D_
_x000D_
return arr.join('');_x000D_
}_x000D_
_x000D_
console.log(reverse('I want a '));
_x000D_
Yes! You can Debug Android Application While you are developing them follow these steps.. Make sure that you have PC suite of the mobile manufacturer. For Example:if you are using samsung you should have samsung kies
1.Enable USB debugging on your device:Settings > Applications > Development > USB debugging
2.Enable Unknownresources:Settings>Unknowresoures
3.Connect your device to PC
4.Select your Application Right click it: RunAS>Run configurations>Choose Device>Target Select your device Run.
You can also without using debugging cable.For that you need to install Airdroid in your device.After installing enter the link in your browser and Drag and Drop .apk file.
Happy Coding!
As the transcript for SciPy told you, SciPy isn't really supposed to work on Win64:
Warning: Windows 64 bits support is experimental, and only available for
testing. You are advised not to use it for production.
So I would suggest to install the 32-bit version of Python, and stop attempting to build SciPy yourself. If you still want to try anyway, you first need to compile BLAS and LAPACK, as PiotrLegnica says. See the transcript for the places where it was looking for compiled versions of these libraries.
You have to be careful about the xib file. I tried all the above and nothing worked for me. I was using custom UIButtons defined in the xib, and realized it might be related to the fact that I had assigned attributes there which were not changing programmatically. If you've defined images or text there, remove them. When I did, my programmatic changes began to take effect.
Normally, in GIT to clear all your modifications & new files the following 2 commands should work very nicely (be CAREFUL, this will delete all your new files+folders you may have created & will restore all your modified files to the state of your current commit):
$ git clean --force -d
$ git checkout -- .
Maybe a better option sometimes is just doing "git stash push" with optional message, like so:
$ git stash push -m "not sure if i will need this later"
This will also clear all your new and modified files, but you'll have all of them stashed in case you want to restore them. Stash in GIT carries from branch to branch, so you can restore them in a different branch, if you wish to.
As a side note, in case you have already staged some newly added files and want to get rid of them, this should do the trick:
$ git reset --hard
If all of the above doesn't work for you, read below what worked for me a while ago:
I ran into this problem few times before. I'm currently developing on Windows 10 machine provided by my employer. Today, this particular git behavior was caused by me creating a new branch from my "develop" branch. For some reason, after I switched back to "develop" branch, some seemingly random files persisted and were showing up as "modified" in "git status".
Also, at that point I couldn't checkout another branch, so I was stuck on my "develop" branch.
This is what I did:
$ git log
I noticed that the new branch I created from "develop" earlier today was showing in the first "commit" message, being referenced at the end "HEAD -> develop, origin/develop, origin/HEAD, The-branch-i-created-earlier-today".
Since I didn't really need it, I deleted it:
$ git branch -d The-branch-i-created-earlier-today
The changed files were still showing up, so I did:
$ git stash
This solved my problem:
$ git status
On branch develop
Your branch is up to date with 'origin/develop'.
nothing to commit, working tree clean
Of course $ git stash list
will show stashed changes, and since I had few and didn't need any of my stashes, I did $ git stash clear
to DELETE ALL STASHES.
NOTE: I haven't tried doing what someone suggested here before me:
$ git rm --cached -r .
$ git reset --hard
This may have worked as well, I'll be sure to try it next time I run into this problem.
Icon creation wizard
REVISED - please see Andrew_1510's answer below, as IPython has been updated.
...
It was a bit hard figure out how to get there from a dusty bug report, but:
It ships with IPython now!
import ipy_autoreload
%autoreload 2
%aimport your_mod
# %autoreload? for help
... then every time you call your_mod.dwim()
, it'll pick up the latest version.
You can use \begin{flalign}
, like the example bellow:
\begin{flalign}
&f(x) = -1.25x^{2} + 1.5x&
\end{flalign}
Edit (April 2020): It seems that launcher script creation is now managed in Toolbox App settings. See the Toolbox App announcement for more details.
--
Create Command-line Launcher
/usr/local/bin/charm
$ charm YOUR_FOLDER_OR_FILE
Maybe this is what you need.
In windows 10, most options will not work. Follow these steps:
In Windows 10 with CMD, you cannot download
scipy
directly using most of the well known commands likewget
,cloning scipy github
,pip install scipy
, etcTo install, go to pythonlibs .whl files , and if you are using
python 2.7 32 bit
then downloadnumpy-1.11.2rc1+mkl-cp27-cp27m-win32.whl and scipy-0.18.1-cp27-cp27m-win32.whl
or ifpython 2.7 62 bit
then downloadnumpy-1.11.2rc1+mkl-cp27-cp27m-win_amd64.whl and scipy-0.18.1-cp27-cp27m-win_amd64.whl
After downloading,save the files under your
python directory
, in my case it wasc:\>python27
Then run:
pip install C:\Python27\numpy-1.11.2rc1+mkl-cp27-cp27m-win32.whl
pip install C:\Python27\scipy-0.18.1-cp27-cp27m-win32.whl
Note:
scipy
needs numpy
as dependency, so that's why we are downloading numpy
before scipy
.cp27
in .whl files means that these files are meant for python 2.7
and cp33
stands for python 3.x
speciafically >=3.3std::string str("a string");
std::cout << str.size() << std::endl;
As for this date (February 2017), it seems that mailchimp has integrated something similar to what gbinflames suggests into their own javascript generated form.
You don't need any further intervention now as mailchimp will convert the form to an ajax submitted one when javascript is enabled.
All you need to do now is just paste the generated form from the embed menu into your html page and NOT modify or add any other code.
This simply works. Thanks MailChimp!
if your php version is Non-Thread-Safe (nts) you must use php extension with format example: extension=php_cl_dbg_5_2_nts.dll else if your php version is Thread-Safe (ts) you must use php extension with format example: extension=php_cl_dbg_5_2_ts.dll (notice bolded words)
So if get error like above. Firstly, check your PHP version is nts or ts, if is nts.
Then check in php.ini whether has any line like zend_extension_ts="C:\xammp\php\ext\php_dbg.dll-5.2.x" choose right version of php_dbg.dll-5.2.x from it homepage (google for it).
Change from zend_extension_ts to zend_extension_nts.
Hope this help.
webDriver.findElement(By.xpath("//a[@href='/docs/configuration']")).click();
The above line works fine. Please remove the space after href.
Is that element is visible in the page, if the element is not visible please scroll down the page then perform click action.
Just some more info on how to get all list elements availlable in String
a = ['a', 'b', 'c']
str = "a123"
list(filter(lambda x: x in str, a))
I needed to remove special characters from an XML file. Here's how I did it. char.ToString() is the hero in this code.
string item = "<item type="line" />"
char DC4 = (char)0x14;
string fixed = item.Replace(DC4.ToString(), string.Empty);
Here's another alternative. Assuming you have an indexed DATE
or DATETIME
type field, this should use the index as the formatted dates will be type converted before the index is used. You should then see a range
query rather than an index
query when viewed with EXPLAIN.
SELECT
*
FROM
table
WHERE
date_created >= DATE_FORMAT( CURRENT_DATE - INTERVAL 1 MONTH, '%Y/%m/01' )
AND
date_created < DATE_FORMAT( CURRENT_DATE, '%Y/%m/01' )
I know this is an old question, but nobody mentioned that when your data looks like an array, numpy's loadtxt comes in handy:
>>> import numpy as np
>>> np.loadtxt("myfile.txt")[:, 1]
array([10., 20., 30., 40., 23., 13.])
Since -f
caused another problem, I developed another solution.
The -f
flag does not solved my problem because my onbuild
image looks for a file in a folder and had to call like this:
-f foo/bar/Dockerfile foo/bar
instead of
-f foo/bar/Dockerfile .
Also note that this is only solution for some cases as -f
flag
This option comes in curl 7.73.0:
curl --create-dirs -O --output-dir /tmp/receipes https://example.com/pancakes.jpg
This bug is filed here. This is a bug of android devices having API level less than 12. You've to put correct versions of your layouts in drawable-v12 folder which will be used for API level 12 or higher. And an erroneous version(corners switched/reversed) of the same layout will be put in the default drawable folder which will be used by the devices having API level less than 12.
For example: I had to design a button with rounded corner at bottom-right.
In 'drawable' folder - button.xml: I had to make bottom-left corner rounded.
<shape>
<corners android:bottomLeftRadius="15dp"/>
</shape>
In 'drawable-v12' folder - button.xml: Correct version of the layout was placed here to be used for API level 12 or higher.
<shape>
<corners android:bottomLeftRadius="15dp"/>
</shape>
You can simply set to null the file path every time user clicks on the control. Now, even if the user selects the same file, the onchange event will be triggered.
<input id="file" onchange="file_changed(this)" onclick="this.value=null;" type="file" accept="*/*" />
tablename$column3=rowSums(cbind(tablename$column1,tablename$column2),na.rm=TRUE)
This can be used to ignore blank values in the excel sheet.
I have used for Euro stat dataset.
This example works in R:
crime_stat_data$All_theft <-rowSums(cbind(crime_stat_data$Theft,crime_stat_data$Theft_of_a_motorised_land_vehicle, crime_stat_data$Burglary, crime_stat_data$Burglary_of_private_residential_premises), na.rm=TRUE)
0
and 7
both stand for Sunday, you can use the one you want, so writing 0-6 or 1-7 has the same result.
Also, as suggested by @Henrik, it is possible to replace numbers by shortened name of days, such as MON
, THU
, etc:
0 - Sun Sunday
1 - Mon Monday
2 - Tue Tuesday
3 - Wed Wednesday
4 - Thu Thursday
5 - Fri Friday
6 - Sat Saturday
7 - Sun Sunday
Graphically:
+---------- minute (0 - 59)
¦ +-------- hour (0 - 23)
¦ ¦ +------ day of month (1 - 31)
¦ ¦ ¦ +---- month (1 - 12)
¦ ¦ ¦ ¦ +-- day of week (0 - 6 => Sunday - Saturday, or
¦ ¦ ¦ ¦ ¦ 1 - 7 => Monday - Sunday)
? ? ? ? ?
* * * * * command to be executed
Finally, if you want to specify day by day, you can separate days with commas, for example SUN,MON,THU
will exectute the command only on sundays, mondays on thursdays.
You can read further details in Wikipedia's article about Cron.
In your INSERT statements:
INSERT INTO employee(hans,germany) values(?,?)
You've got your values where your field names belong. Change it to be:
INSERT INTO employee(emp_name,emp_address) values(?,?)
If you were to run that statement from a SQL prompt, it would look like this:
INSERT INTO employee(emp_name,emp_address) values('hans','germany');
Note that you'd need to put single quotes around the string/varchar values.
Additionally, you are also not adding any parameters to your prepared statement. That is what's actually causing the error you're seeing. Try this:
PreparedStatement ps = con.prepareStatement(inserting);
ps.setString(1, "hans");
ps.setString(2, "germany");
ps.execute();
Also (according to Oracle), you can use "execute" for any SQL statement. Using "executeUpdate" would also be valid in this situation, which would return an integer to indicate the number of rows affected.
In both cases yes it can, and this is the default behaviour for both IE and Edge.
The other answers add valuable insight but chiefly describe the behaviour in Chrome. it's important to note that the behaviour is completely different in IE. CMBuckley's very helpful test script demonstrates that in (say) Chrome, the cookies are not shared between root and subdomains when no domain is specified. However the same test in IE shows that they are shared. This IE case is closer to the take-home description in CMBuckley's www-or-not-www link. I know this to be the case because we have a system that used different servicestack cookies on both the root and subdomain. It all worked fine until someone accessed it in IE and the two systems fought over whose session cookie would win until we blew up the cache.
Use otool:
otool -TV your.dylib
OR
nm -g your.dylib
$records = User::where('created_at' = CURDATE())->GET()); print($records);
Javascript doesn't have threads, but we do have workers.
Workers may be a good choice if you don't need shared objects.
Most browser implementations will actually spread workers across all cores allowing you to utilize all cores. You can see a demo of this here.
I have developed a library called task.js that makes this very easy to do.
task.js Simplified interface for getting CPU intensive code to run on all cores (node.js, and web)
A example would be
function blocking (exampleArgument) {
// block thread
}
// turn blocking pure function into a worker task
const blockingAsync = task.wrap(blocking);
// run task on a autoscaling worker pool
blockingAsync('exampleArgumentValue').then(result => {
// do something with result
});
I don't have access to a Linux box right now, but [
is actually a program (and a Bash builtin), so I think you have to put a space between [
and the first parameter.
Also note that the string equality operator seems to be a single =
.
It's overly-complicated and ugly but in my opinion this is the way to go:
$fp = fopen("php://memory", 'r+');
fputs($fp, $data);
rewind($fp);
while($line = fgets($fp)){
// deal with $line
}
fclose($fp);
GET parameters are cached by the web browser, POST is not. So with a POST you don't have to worry about caching, so that is why it is usually prefered.
Once you have detected the bounding box of the document, you can perform a four-point perspective transform to obtain a top-down birds eye view of the image. This will fix the skew and isolate only the desired object.
Input image:
Detected text object
Top-down view of text document
Code
from imutils.perspective import four_point_transform
import cv2
import numpy
# Load image, grayscale, Gaussian blur, Otsu's threshold
image = cv2.imread("1.png")
gray = cv2.cvtColor(image, cv2.COLOR_BGR2GRAY)
blur = cv2.GaussianBlur(gray, (7,7), 0)
thresh = cv2.threshold(blur, 0, 255, cv2.THRESH_BINARY + cv2.THRESH_OTSU)[1]
# Find contours and sort for largest contour
cnts = cv2.findContours(thresh, cv2.RETR_EXTERNAL,cv2.CHAIN_APPROX_SIMPLE)
cnts = cnts[0] if len(cnts) == 2 else cnts[1]
cnts = sorted(cnts, key=cv2.contourArea, reverse=True)
displayCnt = None
for c in cnts:
# Perform contour approximation
peri = cv2.arcLength(c, True)
approx = cv2.approxPolyDP(c, 0.02 * peri, True)
if len(approx) == 4:
displayCnt = approx
break
# Obtain birds' eye view of image
warped = four_point_transform(image, displayCnt.reshape(4, 2))
cv2.imshow("thresh", thresh)
cv2.imshow("warped", warped)
cv2.imshow("image", image)
cv2.waitKey()
Make sure that the database is created. I got the same error when I applied the migration to the wrong project in the solution. When I applied the migration to the right project, it created the database and that solved the error.
It sounds like you need to use recursion. Make a function to iterate through a list, and if it hits an item that is also a list, call itself to iterate on the member. Here's a link to something similar:
http://www.saltycrane.com/blog/2008/08/python-recursion-example-navigate-tree-data/
This will output the Exception, use only to debug you should handle you exceptions better.
import java.io.PrintWriter;
import java.io.StringWriter;
public static String getStackTrace(Throwable t)
{
StringWriter sw = new StringWriter();
PrintWriter pw = new PrintWriter(sw, true);
t.printStackTrace(pw);
pw.flush();
sw.flush();
return sw.toString();
}
You can use a vector. Instead of worry about different screen sizes you only need to create an .svg file and import it to your project using Vector Asset Studio.
<!DOCTYPE html>
<html>
<head>
<script src="http://ajax.googleapis.com/ajax/libs/jquery/1.8.2/jquery.js"></script>
<script type="text/javascript" src="jquery-2.1.0.js"></script>
<script type="text/javascript" >
function openOnImageClick(event)
{
//alert("Jai Sh Raam");
// document.getElementById("images").src = "fruits.jpg";
var target = event.target || event.srcElement; // IE
console.log(target);
console.log(target.id);
var img = document.createElement('img');
img.setAttribute('src', target.src);
img.setAttribute('width', '200');
img.setAttribute('height', '150');
document.getElementById("images").appendChild(img);
}
</script>
</head>
<body>
<h1>Screen Shot View</h1>
<p>Click the Tiger to display the Image</p>
<div id="images" >
</div>
<img id="muID1" src="tiger.jpg" width="100" height="50" alt="unfinished bingo card" onclick="openOnImageClick(event)" />
<img id="myID2" src="sabaLogo1.jpg" width="100" height="50" alt="unfinished bingo card" onclick="openOnImageClick(event)" />
</body>
</html>
A simple speed hack: when you define the variable "primes," set the step to 2 to skip all even numbers automatically, and set the starting point to 1.
Then you can further optimize by instead of for i in primes, use for i in primes[:round(len(primes) ** 0.5)]. That will dramatically increase performance. In addition, you can eliminate numbers ending with 5 to further increase speed.
You can use:
SELECT SUBDATE(NOW(), 1);
or
SELECT SUBDATE(NOW(), INTERVAL 1 DAY);
or
SELECT NOW() - INTERVAL 1 DAY;
or
SELECT DATE_SUB(NOW(), INTERVAL 1 DAY);
Initially used only ViewDidLoad with tableView. On testing with loss of Wifi, by setting device to airplane mode, realized that the table did not refresh with return of Wifi. In fact, there appears to be no way to refresh tableView on the device even by hitting the home button with background mode set to YES in -Info.plist.
My solution:
-(void) viewWillAppear: (BOOL) animated { [self.tableView reloadData];}
There is one trick with ParameterBag::get()
method. You can set $deep
parameter to true
and access the required deep nested value without extra variable:
$request->request->get('form[some][deep][data]', null, true);
Also you have possibility to set a default value (2nd parameter of get()
method), it can avoid redundant isset($form['some']['deep']['data'])
call.
There are several ways to improve this or any value type:
Basically, take a look at the API for other value classes like Double, Integer and do what they do :)
This is my solution for converting every value in a req.body to a mongoose LIKE param:
let superQ = {}
Object.entries({...req.body}).map((val, i, arr) => {
superQ[val[0]] = { '$regex': val[1], '$options': 'i' }
})
User.find(superQ)
.then(result => {
res.send(result)})
.catch(err => {
res.status(404).send({ msg: err }) })
You can use contains
(this works with an arbitrary sequence):
df.filter($"foo".contains("bar"))
like
(SQL like with SQL simple regular expression whith _
matching an arbitrary character and %
matching an arbitrary sequence):
df.filter($"foo".like("bar"))
or rlike
(like with Java regular expressions):
df.filter($"foo".rlike("bar"))
depending on your requirements. LIKE
and RLIKE
should work with SQL expressions as well.
You need, for example:
<input type="text" name="idtest" value="<?php echo $idtest; ?>" />
The echo
function is what actually outputs the value of the variable.
For more details refer to this link
The following code will give you CPU ID:
namespace required System.Management
var mbs = new ManagementObjectSearcher("Select ProcessorId From Win32_processor");
ManagementObjectCollection mbsList = mbs.Get();
string id = "";
foreach (ManagementObject mo in mbsList)
{
id = mo["ProcessorId"].ToString();
break;
}
For Hard disk ID and motherboard id details refer this-link
To speed up this procedure, make sure you don't use SELECT *
, but only select what you really need. Use SELECT *
only during development when you try to find out what you need to use, because then the query will take much longer to complete.
as the base question is about win forms here is the solution : ( I just changed the code by user1032413 to rflect windowsForms settings ) if it's a new key :
Configuration config = configurationManager.OpenExeConfiguration(Application.ExecutablePath);
config.AppSettings.Settings.Add("Key","Value");
config.Save(ConfigurationSaveMode.Modified);
if the key already exists :
Configuration config = ConfigurationManager.OpenExeConfiguration(Application.ExecutablePath);
config.AppSettings.Settings["Key"].Value="Value";
config.Save(ConfigurationSaveMode.Modified);
Here is my solution:
chrome.runtime.onMessage.addListener(function(request, sender) {
if (request.action == "getSource") {
this.pageSource = request.source;
var title = this.pageSource.match(/<title[^>]*>([^<]+)<\/title>/)[1];
alert(title)
}
});
chrome.tabs.query({ active: true, currentWindow: true }, tabs => {
chrome.tabs.executeScript(
tabs[0].id,
{ code: 'var s = document.documentElement.outerHTML; chrome.runtime.sendMessage({action: "getSource", source: s});' }
);
});
The sane way to do this is to use zip()
and a List Comprehension / Generator Expression:
filtered = (
(email, other)
for email, other in zip(emails, other_list)
if email == '[email protected]')
new_emails, new_other_list = zip(*filtered)
Also, if your'e not using array.array()
or numpy.array()
, then most likely you are using []
or list()
, which give you Lists, not Arrays. Not the same thing.
sometimes there's a difference between the local cached version of origin master (origin/master) and the true origin master.
If you run git remote update
this will resynch origin master with origin/master
see the accepted answer to this question
Differences between git pull origin master & git pull origin/master
Silly answer: write to a temporary file so you can use the venerable
File.ReadLines
var s = "Hello\r\nWorld";
var path = Path.GetTempFileName();
using (var writer = new StreamWriter(path))
{
writer.Write(s);
}
var lines = File.ReadLines(path);
The color for your buttons comes from the btn-x classes (e.g., btn-primary, btn-success), so if you want to manually change the colors by writing your own custom css rules, you'll need to change:
/*This is modifying the btn-primary colors but you could create your own .btn-something class as well*/
.btn-primary {
color: #fff;
background-color: #0495c9;
border-color: #357ebd; /*set the color you want here*/
}
.btn-primary:hover, .btn-primary:focus, .btn-primary:active, .btn-primary.active, .open>.dropdown-toggle.btn-primary {
color: #fff;
background-color: #00b3db;
border-color: #285e8e; /*set the color you want here*/
}
You have to add the size of the legend box to the ylim range
#Plot an empty graph and legend to get the size of the legend
x <-1:10
y <-11:20
plot(x,y,type="n", xaxt="n", yaxt="n")
my.legend.size <-legend("topright",c("Series1","Series2","Series3"),plot = FALSE)
#custom ylim. Add the height of legend to upper bound of the range
my.range <- range(y)
my.range[2] <- 1.04*(my.range[2]+my.legend.size$rect$h)
#draw the plot with custom ylim
plot(x,y,ylim=my.range, type="l")
my.legend.size <-legend("topright",c("Series1","Series2","Series3"))
Simple explanation:
foo = "BEST DAY EVER" #assign a string to variable foo.
=> foo.downcase #call method downcase, this is without any exclamation.
"best day ever" #returns the result in downcase, but no change in value of foo.
=> foo #call the variable foo now.
"BEST DAY EVER" #variable is unchanged.
=> foo.downcase! #call destructive version.
=> foo #call the variable foo now.
"best day ever" #variable has been mutated in place.
But if you ever called a method downcase!
in the explanation above, foo
would change to downcase permanently. downcase!
would not return a new string object but replace the string in place, totally changing the foo
to downcase.
I suggest you don't use downcase!
unless it is totally necessary.
I think you may be looking for Jagged Arrays, which are different from multi-dimensional arrays (as you are using in your example) in C#. Converting the arrays in your declarations to jagged arrays should make it work. However, you'll still need to use two loops to iterate over all the items in the 2D jagged array.
If you are using background image, the best way I found is:
filter: blur(5px);
margin-top: -5px;
padding-bottom: 10px;
margin-left: -5px;
padding-right: 10px;
Without VBA macro, you can use this tips to get the username from the path :
=MID(INFO("DIRECTORY"),10,LEN(INFO("DIRECTORY"))-LEN(MID(INFO("DIRECTORY"),FIND("\",INFO("DIRECTORY"),10),1000))-LEN("C:\Users\"))
Use substring method like this::
str.substring(str.length()-2);
There is a useful Web API method called URL
const url = new URL('http://www.somedomain.com/account/search?filter=a#top');_x000D_
console.log(url.pathname.split('/'));_x000D_
const params = new URLSearchParams(url.search)_x000D_
console.log(params.get("filter"))
_x000D_
First part of accepted answer does not work for MSSQL.
This worked for me:
select email, COUNT(*) as C from table
group by email having COUNT(*) >1 order by C desc
Your call to MessageBox.Show
needs to pass MessageBoxButtons.YesNo
to get the Yes/No buttons instead of the OK button.
Compare the result of that call (which will block execution until the dialog returns) to DialogResult.Yes
....
if (MessageBox.Show("Are you sure?", "Confirm", MessageBoxButtons.YesNo, MessageBoxIcon.Question) == DialogResult.Yes)
{
// user clicked yes
}
else
{
// user clicked no
}
I managed to create a simple console "hello world" with QT Creator
used creator 2.4.1 and QT 4.8.0 on windows 7
two ways to do this
Plain C++
do the following
or
QT Console
example: for QT console "hello world"
file - new file project 'project name '
other projects - QT Console Application
Targets select 'Desktop'
project management - next
code:
#include <QtCore/QCoreApplication>
#include <iostream>
using namespace std;
int main(int argc, char *argv[])
{
QCoreApplication a(argc, argv);
cout<<" hello world";
return a.exec();
}
ctrl -R to run
compilers used for above MSVC 2010 (QT SDK) , and minGW(QT SDK)
hope this helps someone
As I have just started to use QT recently and also searched the Www for info and examples to get started with simple examples still searching...
This is an old question, but because the existing answers could be very dangerous, I wanted to leave this answer for future folks who might stumble in here...
The answers based on using an Object as a HashMap are broken and can cause extremely nasty consequences if you use anything other than a String as the key. The problem is that Object properties are coerced to Strings using the .toString method. This can lead to the following nastiness:
function MyObject(name) {
this.name = name;
};
var key1 = new MyObject("one");
var key2 = new MyObject("two");
var map = {};
map[key1] = 1;
map[key2] = 2;
If you were expecting that Object would behave in the same way as a Java Map here, you would be rather miffed to discover that map only contains one entry with the String key [object Object]
:
> JSON.stringify(map);
{"[object Object]": 2}
This is clearly not a replacement for Java's HashMap. Bizarrely, given it's age, Javascript does not currently have a general purpose map object. There is hope on the horizon, though: https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Map although a glance at the Browser Compatability table there will show that this isn't ready to used in general purpose web apps yet.
In the meantime, the best you can do is:
map[toUniqueString(key1)] = 1
Sometimes, though, that is not possible. If you want to map data based on, for example File objects, there is no reliable way to do this because the attributes that the File object exposes are not enough to ensure its uniqueness. (You may have two File objects that represent different files on disk, but there is no way to distinguish between them in JS in the browser). In these cases, unfortunately, all that you can do is refactor your code to eliminate the need for storing these in a may; perhaps, by using an array instead and referencing them exclusively by index.
I think people here got sidetracked by the UrlEncode message. URLEncoding is not what you want -- you want to encode stuff that won't work as a filename on the target system.
Assuming that you want some generality -- feel free to find the illegal characters on several systems (MacOS, Windows, Linux and Unix), union them to form a set of characters to escape.
As for the escape, a HexEscape should be fine (Replacing the characters with %XX). Convert each character to UTF-8 bytes and encode everything >128 if you want to support systems that don't do unicode. But there are other ways, such as using back slashes "\" or HTML encoding """. You can create your own. All any system has to do is 'encode' the uncompatible character away. The above systems allow you to recreate the original name -- but something like replacing the bad chars with spaces works also.
On the same tangent as above, the only one to use is
Uri.EscapeDataString
-- It encodes everything that is needed for OAuth, it doesn't encode the things that OAuth forbids encoding, and encodes the space as %20 and not + (Also in the OATH Spec) See: RFC 3986. AFAIK, this is the latest URI spec.
Some action, very possibly not represented in the visible code, has closed the interactive screen device. It could be done either by a "click" on a close-button. (Could also be done by an extra dev.off() when plotting to a file-graphics device. This may happen if you paste in a mult-line plotting command that has a dev,off() at the end of it but errors out at the opening of the external device but then has hte dev.off() on a separate line so it accidentally closes the interactive device).
Some (most?) R implementations will start up a screen graphics device open automatically, but if you close it down, you then need to re-initialize it. On Windows that might be window()
; on a Mac, quartz()
; and on a linux box, x11()
. You also may need to issue a plot.new()
command. I just follow orders. When I get that error I issue plot.new()
and if I don't see a plot window, I issue quartz()
as well. I then start over from the beginning with a new plot(., ., ...)
command and any further additions to that plot screen image.
You can use the reset() function, it will return the first array member.
The parentheses are poorly placed.
You need to use:
doThrow(new Exception()).when(mockedObject).methodReturningVoid(...);
^
and NOT use:
doThrow(new Exception()).when(mockedObject.methodReturningVoid(...));
^
This is explained in the documentation
You can get the path via fp.name
. Example:
>>> f = open('foo/bar.txt')
>>> f.name
'foo/bar.txt'
You might need os.path.basename
if you want only the file name:
>>> import os
>>> f = open('foo/bar.txt')
>>> os.path.basename(f.name)
'bar.txt'
File object docs (for Python 2) here.
Here's how I do it (with a little more info on how to load an image):
import java.awt.Graphics;
import java.awt.image.BufferedImage;
import java.io.File;
import java.io.IOException;
import java.util.logging.Level;
import java.util.logging.Logger;
import javax.imageio.ImageIO;
import javax.swing.JPanel;
public class ImagePanel extends JPanel{
private BufferedImage image;
public ImagePanel() {
try {
image = ImageIO.read(new File("image name and path"));
} catch (IOException ex) {
// handle exception...
}
}
@Override
protected void paintComponent(Graphics g) {
super.paintComponent(g);
g.drawImage(image, 0, 0, this); // see javadoc for more info on the parameters
}
}
Here is what i can suggest. Use another variable to derive the if clause and assign it to num1.
Code:
num2 =20 if someBoolValue else num1
num1=num2
% draw simple vector from pt a to pt b
% wtr : with respect to
scale=0;%for drawin vectors with true scale
a = [10 20 30];% wrt origine O(0,0,0)
b = [10 10 20];% wrt origine O(0,0,0)
starts=a;% a now is the origine of my vector to draw (from a to b) so we made a translation from point O to point a = to vector a
c = b-a;% c is the new coordinates of b wrt origine a
ends=c;%
plot3(a(1),a(2),a(3),'*b')
hold on
plot3(b(1),b(2),b(3),'*g')
quiver3(starts(:,1), starts(:,2), starts(:,3), ends(:,1), ends(:,2), ends(:,3),scale);% Use scale = 0 to plot the vectors without the automatic scaling.
% axis equal
hold off
Note that there is an unrelated issue in your code but that could bite you later: you should return res.json()
or you will not catch any error occurring in JSON parsing or your own function processing data.
Back to your error: You cannot have a TypeError: failed to fetch
with a successful request. You probably have another request (check your "network" panel to see all of them) that breaks and causes this error to be logged. Also, maybe check "Preserve log" to be sure the panel is not cleared by any indelicate redirection. Sometimes I happen to have a persistent "console" panel, and a cleared "network" panel that leads me to have error in console which is actually unrelated to the visible requests. You should check that.
Or you (but that would be vicious) actually have a hardcoded console.log('TypeError: failed to fetch')
in your final .catch
;) and the error is in reality in your .then()
but it's hard to believe.
I always get in here, for this topic. I'll put my code in here so i (or other) can use it next time. (Phew hate to search into my repository code).
Add the permission:
<uses-permission android:name="android.permission.RECEIVE_BOOT_COMPLETED" />
Add receiver and service:
<receiver android:enabled="true" android:name=".BootUpReceiver"
android:permission="android.permission.RECEIVE_BOOT_COMPLETED">
<intent-filter>
<action android:name="android.intent.action.BOOT_COMPLETED" />
<category android:name="android.intent.category.DEFAULT" />
</intent-filter>
</receiver>
<service android:name="Launcher" />
Create class Launcher:
public class Launcher extends Service {
@Nullable
@Override
public IBinder onBind(Intent intent) {
return null;
}
@Override
public int onStartCommand(Intent intent, int flags, int startId) {
new AsyncTask<Service, Void, Service>() {
@Override
protected Service doInBackground(Service... params) {
Service service = params[0];
PackageManager pm = service.getPackageManager();
try {
Intent target = pm.getLaunchIntentForPackage("your.package.id");
if (target != null) {
service.startActivity(target);
synchronized (this) {
wait(3000);
}
} else {
throw new ActivityNotFoundException();
}
} catch (ActivityNotFoundException | InterruptedException ignored) {
}
return service;
}
@Override
protected void onPostExecute(Service service) {
service.stopSelf();
}
}.execute(this);
return START_STICKY;
}
}
Create class BootUpReceiver
to do action after android reboot.
For example launch MainActivity:
public class BootUpReceiver extends BroadcastReceiver{
@Override
public void onReceive(Context context, Intent intent) {
Intent target = new Intent(context, MainActivity.class);
target.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
context.startActivity(target);
}
}
The most simple solution but not 100% accurate
$(':hover').last().offset()
Result: {top: 148, left: 62.5}
The result depend on the nearest element size and return undefined
when user switched the tab
Sometimes the simplest things are the most valuable. The 2 lines in my .vimrc that are totally indispensable:
nore ; : nore , ;
It may need a backslash on the end of the line for continuation (although perhaps that depends on the version of make):
if [ -a myApp ] ; \
then \
rm myApp ; \
fi;
It is just such simple as writing:
$('input[type=file]').val()
Anyway, I suggest using name or ID attribute to select your input. And with event, it should look like this:
$('input[type=file]').change(function(e){
$in=$(this);
$in.next().html($in.val());
});
No you cannot. The only thing you can do is to insert content. Like so:
p:after {
content: "yo";
}
For others who wind up here like I did, you can use AJAX to do a PUT with parameters, but they are sent as the body, not as query strings.
Check your server config file /etc/mysql/my.cnf
- verify bind_address
is not set to 127.0.0.1
. Set it to 0.0.0.0
or comment it out then restart server with:
sudo service mysql restart
one of the ways I used it :
protected List<Field> getFieldsWithJsonView(Class sourceClass, Class jsonViewName){
List<Field> fields = new ArrayList<>();
for (Field field : sourceClass.getDeclaredFields()) {
JsonView jsonViewAnnotation = field.getDeclaredAnnotation(JsonView.class);
if(jsonViewAnnotation!=null){
boolean jsonViewPresent = false;
Class[] viewNames = jsonViewAnnotation.value();
if(jsonViewName!=null && Arrays.asList(viewNames).contains(jsonViewName) ){
fields.add(field);
}
}
}
return fields;
}
In this case, you could use life
to reference the parent object. Or you could store a reference to life
in the users object. There can't be a fixed parent
available to you in the language, because users is just a reference to an object, and there could be other references...
var death = { residents : life.users };
life.users.smallFurryCreaturesFromAlphaCentauri = { exist : function() {} };
// death.residents.smallFurryCreaturesFromAlphaCentauri now exists
// - because life.users references the same object as death.residents!
You might find it helpful to use something like this:
function addChild(ob, childName, childOb)
{
ob[childName] = childOb;
childOb.parent = ob;
}
var life= {
mameAndDestroy : function(group){ },
kiss : function(group){ }
};
addChild(life, 'users', {
guys : function(){ this.parent.mameAndDestroy(this.girls); },
girls : function(){ this.parent.kiss(this.boys); },
});
// life.users.parent now exists and points to life
If you are using .NET 3.5+ you could use LINQ (Language INtegrated Query).
test = test.Where(x => !string.IsNullOrEmpty(x)).ToArray();
I used this below if this is what you are thinking. It it worked well for me.
<?php
include $_SERVER['DOCUMENT_ROOT']."/head_lib.php";
?>
What I was trying to do was pulla file called /head_lib.php from the root folder. It would not pull anything to build the webpage. The header, footer and other key features in sub directories would never show up. Until I did above it worked like a champ.
Had the same issue where query:
SELECT * FROM 'column' WHERE 'column' IS NULL;
returned no values. Seems to be an issue with MyISAM and the same query on the data in InnoDB returned expected results.
Went with:
SELECT * FROM 'column' WHERE 'column' = ' ';
Returned all expected results.
You need to have the 'data' array outside of the loop, otherwise it will get reset in every loop and also you can directly push the json. Find the solution below:-
var my_json;
$.getJSON("https://api.thingspeak.com/channels/"+did+"/feeds.json?api_key="+apikey+"&results=300", function(json1) {
console.log(json1);
var data = [];
json1.feeds.forEach(function(feed,i){
console.log("\n The details of " + i + "th Object are : \nCreated_at: " + feed.created_at + "\nEntry_id:" + feed.entry_id + "\nField1:" + feed.field1 + "\nField2:" + feed.field2+"\nField3:" + feed.field3);
my_json = feed;
console.log(my_json); //Object {created_at: "2017-03-14T01:00:32Z", entry_id: 33358, field1: "4", field2: "4", field3: "0"}
data.push(my_json);
//["2017-03-14T01:00:32Z", 33358, "4", "4", "0"]
});
console.log(data);
Here is a better encapsulated solution:
https://www.spicelogic.com/Blog/enum-dropdownlistfor-asp-net-mvc-5
Say here is your model:
Sample Usage:
Generated UI:
And generated HTML
The Helper Extension Source Code snap shot:
You can download the sample project from the link I provided.
EDIT: Here's the code:
public static class EnumEditorHtmlHelper
{
/// <summary>
/// Creates the DropDown List (HTML Select Element) from LINQ
/// Expression where the expression returns an Enum type.
/// </summary>
/// <typeparam name="TModel">The type of the model.</typeparam>
/// <typeparam name="TProperty">The type of the property.</typeparam>
/// <param name="htmlHelper">The HTML helper.</param>
/// <param name="expression">The expression.</param>
/// <returns></returns>
public static MvcHtmlString DropDownListFor<TModel, TProperty>(this HtmlHelper<TModel> htmlHelper,
Expression<Func<TModel, TProperty>> expression)
where TModel : class
{
TProperty value = htmlHelper.ViewData.Model == null
? default(TProperty)
: expression.Compile()(htmlHelper.ViewData.Model);
string selected = value == null ? String.Empty : value.ToString();
return htmlHelper.DropDownListFor(expression, createSelectList(expression.ReturnType, selected));
}
/// <summary>
/// Creates the select list.
/// </summary>
/// <param name="enumType">Type of the enum.</param>
/// <param name="selectedItem">The selected item.</param>
/// <returns></returns>
private static IEnumerable<SelectListItem> createSelectList(Type enumType, string selectedItem)
{
return (from object item in Enum.GetValues(enumType)
let fi = enumType.GetField(item.ToString())
let attribute = fi.GetCustomAttributes(typeof (DescriptionAttribute), true).FirstOrDefault()
let title = attribute == null ? item.ToString() : ((DescriptionAttribute) attribute).Description
select new SelectListItem
{
Value = item.ToString(),
Text = title,
Selected = selectedItem == item.ToString()
}).ToList();
}
}
try something like :
var focusout = false;
$("#Button1").click(function () {
if (focusout == true) {
focusout = false;
return;
}
else {
GetInfo();
}
});
$("#Text1").focusout(function () {
focusout = true;
GetInfo();
});
The following will unstage just the file you intended, which is what the OP asked.
git reset HEAD^ /path/to/file
You'll see something like the following...
Changes to be committed: (use "git reset HEAD ..." to unstage)
modified: /path/to/file
Changes not staged for commit: (use "git add ..." to update what will be committed) (use "git checkout -- ..." to discard changes in working directory)
modified: /path/to/file
At this point, you can do whatever you like to the file, such as resetting to a different version.
When you're ready to commit:
git commit --amend -a
or (if you've got some other changes going on that you don't want to commit, yet)
git commit add /path/to/file
git commit --amend
open terminal(or cmd for window), then run following commands: (On window, drop "source" in the second line.)
conda create -n py35 python=3.5
source activate py35
conda install notebook ipykernel
ipython kernel install --user --name=python3.5
I tried some method but It doesnt work, then I found this way. It worked with me. Hoping it can help.
Firefox has a built-in API for this since v60, for WebExtensions:
https://developer.mozilla.org/en-US/docs/Mozilla/Add-ons/WebExtensions/API/dns/resolve
To disable the vertical scroll bar, just add overflow-y:hidden;
.
Find more about it: overflow.
Removing a file from pull request but not from your local repository.
git checkout -- c:\temp..... next git checkout origin/master -- c:\temp... u replace origin/master with any other branch. Next git commit -m c:\temp..... Next git push origin
Note : no single quote or double quotes for the filepath
Use reflection
System.Reflection.PropertyInfo pi = item.GetType().GetProperty("name");
String name = (String)(pi.GetValue(item, null));
If you use custom formatting and need to concatenate those values elsewhere, you can copy them and Paste Special --> Values elsewhere in the sheet (or on a different sheet), then concatenate those values.
I know this is an old question. The way I solved it - after failing by increasing the length or even changing to data type text - was creating an XLSX file and importing. It accurately detected the data type instead of setting all columns as varchar(50)
. Turns out nvarchar(255)
for that column would have done it too.
Just as a note you can also use this for iPads:
activityViewController.popoverPresentationController?.sourceView = sender
So the popover pops from the sender (the button in that case).
Newer versions of Android support vector graphics, which is preferred over PNG icons. Android Studio 2.1.2 (and probably earlier versions) comes with Vector Asset Studio, which will automatically create PNG files for vector graphics that you add.
The Vector Asset Studio supports importing vector icons from the SDK, as well as your own SVG files.
This article describes Vector Asset Studio: https://developer.android.com/studio/write/vector-asset-studio.html
Summary for how to add a vector graphic with PNG files (partially copied from that URL):
app/build/generated/res/pngs/debug/
folder.You can definitely get Boolean value from a SELECT query, you just can't use a Boolean data-type.
You can represent a Boolean with 1/0.
CASE WHEN (10 > 0) THEN 1 ELSE 0 END (It can be used in SELECT QUERY)
SELECT CASE WHEN (10 > 0) THEN 1 ELSE 0 END AS MY_BOOLEAN_COLUMN
FROM DUAL
Returns, 1 (in Hibernate/Mybatis/etc 1 is true). Otherwise, you can get printable Boolean values from a SELECT.
SELECT CASE WHEN (10 > 0) THEN 'true' ELSE 'false' END AS MY_BOOLEAN_COLUMN
FROM DUAL
This returns the string 'true'
.
If you don't mind using jQuery you can use the code bellow:
<script>
$(document).ready(function(){
$("#department").val("${requestScope.selectedDepartment}").attr('selected', 'selected');
});
</script>
<select id="department" name="department">
<c:forEach var="item" items="${dept}">
<option value="${item.key}">${item.value}</option>
</c:forEach>
</select>
In the your Servlet add the following:
request.setAttribute("selectedDepartment", YOUR_SELECTED_DEPARTMENT );
Building on Henks answer I have created some test methods with his answer and some added, more optimized, methods. I found the results differ based on the size of the input string. Therefore, I have tested with two result sets. In the fastest method, the linked source has a even faster way. But, since it is characterized as unsafe I have left this out.
Long input string results:
Short input string results:
Code:
public class RemoveWhitespace
{
public static string RemoveStringReader(string input)
{
var s = new StringBuilder(input.Length); // (input.Length);
using (var reader = new StringReader(input))
{
int i = 0;
char c;
for (; i < input.Length; i++)
{
c = (char)reader.Read();
if (!char.IsWhiteSpace(c))
{
s.Append(c);
}
}
}
return s.ToString();
}
public static string RemoveLinqNativeCharIsWhitespace(string input)
{
return new string(input.ToCharArray()
.Where(c => !char.IsWhiteSpace(c))
.ToArray());
}
public static string RemoveLinq(string input)
{
return new string(input.ToCharArray()
.Where(c => !Char.IsWhiteSpace(c))
.ToArray());
}
public static string RemoveRegex(string input)
{
return Regex.Replace(input, @"\s+", "");
}
private static Regex compiled = new Regex(@"\s+", RegexOptions.Compiled);
public static string RemoveRegexCompiled(string input)
{
return compiled.Replace(input, "");
}
public static string RemoveForLoop(string input)
{
for (int i = input.Length - 1; i >= 0; i--)
{
if (char.IsWhiteSpace(input[i]))
{
input = input.Remove(i, 1);
}
}
return input;
}
public static string StringSplitThenJoin(this string str)
{
return string.Join("", str.Split(default(string[]), StringSplitOptions.RemoveEmptyEntries));
}
public static string RemoveInPlaceCharArray(string input)
{
var len = input.Length;
var src = input.ToCharArray();
int dstIdx = 0;
for (int i = 0; i < len; i++)
{
var ch = src[i];
switch (ch)
{
case '\u0020':
case '\u00A0':
case '\u1680':
case '\u2000':
case '\u2001':
case '\u2002':
case '\u2003':
case '\u2004':
case '\u2005':
case '\u2006':
case '\u2007':
case '\u2008':
case '\u2009':
case '\u200A':
case '\u202F':
case '\u205F':
case '\u3000':
case '\u2028':
case '\u2029':
case '\u0009':
case '\u000A':
case '\u000B':
case '\u000C':
case '\u000D':
case '\u0085':
continue;
default:
src[dstIdx++] = ch;
break;
}
}
return new string(src, 0, dstIdx);
}
}
Tests:
[TestFixture]
public class Test
{
// Short input
//private const string input = "123 123 \t 1adc \n 222";
//private const string expected = "1231231adc222";
// Long input
private const string input = "123 123 \t 1adc \n 222123 123 \t 1adc \n 222123 123 \t 1adc \n 222123 123 \t 1adc \n 222123 123 \t 1adc \n 222123 123 \t 1adc \n 222123 123 \t 1adc \n 222123 123 \t 1adc \n 222123 123 \t 1adc \n 222123 123 \t 1adc \n 222123 123 \t 1adc \n 222123 123 \t 1adc \n 222123 123 \t 1adc \n 222123 123 \t 1adc \n 222123 123 \t 1adc \n 222123 123 \t 1adc \n 222123 123 \t 1adc \n 222123 123 \t 1adc \n 222123 123 \t 1adc \n 222123 123 \t 1adc \n 222123 123 \t 1adc \n 222123 123 \t 1adc \n 222";
private const string expected = "1231231adc2221231231adc2221231231adc2221231231adc2221231231adc2221231231adc2221231231adc2221231231adc2221231231adc2221231231adc2221231231adc2221231231adc2221231231adc2221231231adc2221231231adc2221231231adc2221231231adc2221231231adc2221231231adc2221231231adc2221231231adc2221231231adc222";
private const int iterations = 1000000;
[Test]
public void RemoveInPlaceCharArray()
{
string s = null;
var stopwatch = Stopwatch.StartNew();
for (int i = 0; i < iterations; i++)
{
s = RemoveWhitespace.RemoveInPlaceCharArray(input);
}
stopwatch.Stop();
Console.WriteLine("InPlaceCharArray: " + stopwatch.ElapsedMilliseconds + " ms");
Assert.AreEqual(expected, s);
}
[Test]
public void RemoveStringReader()
{
string s = null;
var stopwatch = Stopwatch.StartNew();
for (int i = 0; i < iterations; i++)
{
s = RemoveWhitespace.RemoveStringReader(input);
}
stopwatch.Stop();
Console.WriteLine("String reader: " + stopwatch.ElapsedMilliseconds + " ms");
Assert.AreEqual(expected, s);
}
[Test]
public void RemoveLinqNativeCharIsWhitespace()
{
string s = null;
var stopwatch = Stopwatch.StartNew();
for (int i = 0; i < iterations; i++)
{
s = RemoveWhitespace.RemoveLinqNativeCharIsWhitespace(input);
}
stopwatch.Stop();
Console.WriteLine("LINQ using native char.IsWhitespace: " + stopwatch.ElapsedMilliseconds + " ms");
Assert.AreEqual(expected, s);
}
[Test]
public void RemoveLinq()
{
string s = null;
var stopwatch = Stopwatch.StartNew();
for (int i = 0; i < iterations; i++)
{
s = RemoveWhitespace.RemoveLinq(input);
}
stopwatch.Stop();
Console.WriteLine("LINQ: " + stopwatch.ElapsedMilliseconds + " ms");
Assert.AreEqual(expected, s);
}
[Test]
public void RemoveRegex()
{
string s = null;
var stopwatch = Stopwatch.StartNew();
for (int i = 0; i < iterations; i++)
{
s = RemoveWhitespace.RemoveRegex(input);
}
stopwatch.Stop();
Console.WriteLine("Regex: " + stopwatch.ElapsedMilliseconds + " ms");
Assert.AreEqual(expected, s);
}
[Test]
public void RemoveRegexCompiled()
{
string s = null;
var stopwatch = Stopwatch.StartNew();
for (int i = 0; i < iterations; i++)
{
s = RemoveWhitespace.RemoveRegexCompiled(input);
}
stopwatch.Stop();
Console.WriteLine("RegexCompiled: " + stopwatch.ElapsedMilliseconds + " ms");
Assert.AreEqual(expected, s);
}
[Test]
public void RemoveForLoop()
{
string s = null;
var stopwatch = Stopwatch.StartNew();
for (int i = 0; i < iterations; i++)
{
s = RemoveWhitespace.RemoveForLoop(input);
}
stopwatch.Stop();
Console.WriteLine("ForLoop: " + stopwatch.ElapsedMilliseconds + " ms");
Assert.AreEqual(expected, s);
}
[TestMethod]
public void StringSplitThenJoin()
{
string s = null;
var stopwatch = Stopwatch.StartNew();
for (int i = 0; i < iterations; i++)
{
s = RemoveWhitespace.StringSplitThenJoin(input);
}
stopwatch.Stop();
Console.WriteLine("StringSplitThenJoin: " + stopwatch.ElapsedMilliseconds + " ms");
Assert.AreEqual(expected, s);
}
}
Edit: Tested a nice one liner from Kernowcode.
Neater still, instead of the typical href="#"
or href="javascript:void"
or href="whatever"
, I think this makes much more sense:
var el = document.getElementById('foo');
el.onclick = showFoo;
function showFoo() {
alert('I am foo!');
return false;
}
<a href="no-javascript.html" title="Get some foo!" id="foo">Show me some foo</a>
If Javascript fails, there is some feedback. Furthermore, erratic behavior (page jumping in the case of href="#"
, visiting the same page in the case of href=""
) is eliminated.
While getting all album tracks form inside album class, you'll generate one more query for one more record. That's because of proxy method. There's another example of my code (see last post in topic): http://groups.google.com/group/doctrine-user/browse_thread/thread/d1d87c96052e76f7/436b896e83c10868#436b896e83c10868
Is there any other method to resolve that? Isn't a single join a better solution?
Yes! And another solution. My solution differs in the keys that are being checked.
In all other solutions we only look at the keys in dict_b
. But here we look in the union of both dictionaries.
Do with it as you please
def update_nested(dict_a, dict_b):
set_keys = set(dict_a.keys()).union(set(dict_b.keys()))
for k in set_keys:
v = dict_a.get(k)
if isinstance(v, dict):
new_dict = dict_b.get(k, None)
if new_dict:
update_nested(v, new_dict)
else:
new_value = dict_b.get(k, None)
if new_value:
dict_a[k] = new_value
Purely using MSchimpf and Ahmad's code, I made adjustments so I could have the iframe within a div, therefore keeping a header and footer for back button and branding on my page. Updated code:
<script type="text/javascript">
$("#webview").bind('pagebeforeshow', function(event){
$("#iframe").attr('src',cwebview);
});
if (navigator.userAgent.indexOf('iPhone') != -1 || navigator.userAgent.indexOf('iPad') != -1)
{
$("#webview-content").css("width","100%");
$("#webview-content").css("height","100%");
$("#iframe").load(function (){ // Wait until iFrame content is loaded before checking dimensions of the content
iframeWidth = $("#iframe").contents().width();
if (iframeWidth > 400)
$("#webview-content").css("width",(iframeWidth + 182) + 'px');
iframeHeight = $("#iframe").contents().height();
if (iframeHeight>200)
$("#webview-content").css("height",iframeHeight + 'px');
});
}
</script>
and the html
<div class="header" data-role="header" data-position="fixed">
</div>
<div id="webview-content" data-role="content" style="height:380px;">
<iframe id="iframe"></iframe>
</div><!-- /content -->
<div class="footer" data-role="footer" data-position="fixed">
</div><!-- /footer -->
The easiest way as many have mentioned already is to do a DESCRIBE TABLE
However you can also get some the same + additional information from
db2> SELECT * SYSCAT.TABLES
db2> SELECT * FROM SYSCAT.COLUMNS
I usually use SYSCAT.COLUMNS to find the related tables in the database where I already know the column name :)
Another good way if you want to get the DDL of a particular table or the whole database is to use the db2look
# db2look -d *dbname* -t *tablename* > tablestructure.out
This will generate the ".out" file for you which will contain the particular table's DDL script.
# db2look -d *dbname* -e > dbstructure.out
This will generate the entire database's DDL as a single script file, this is usually used to replicate the database, "-e" is to indicate that one wants to export DDL suitable recreate exact same setup in a new database.
Hope this can help someone looking for such answers :)
This question addresses a very related issue that may help using network shares in powershell.
This my solution for POST
and GET
.
About the Post
method:
If the body is a JSON object, so it's important to deserialize it with JSON.stringify
and possibly set the Content-Lenght
header accordingly:
var bodyString=JSON.stringify(body)
var _headers = {
'Content-Length': Buffer.byteLength(bodyString)
};
before writing it to the request:
request.write( bodyString );
About both Get
and Post
methods:
The timeout
can occur as a socket
disconnect, so you must register its handler like:
request.on('socket', function (socket) {
socket.setTimeout( self.timeout );
socket.on('timeout', function() {
request.abort();
if(timeout) return timeout( new Error('request timed out') );
});
});
while the request
handler is
request.on('timeout', function () {
// Timeout happend. Server received request, but not handled it
// (i.e. doesn't send any response or it took to long).
// You don't know what happend.
// It will emit 'error' message as well (with ECONNRESET code).
req.abort();
if(timeout) return timeout( new Error('request timed out') );
});
I strongly suggest to register both the handlers.
The response body is chunked, so you must concat chunks at the data
handler:
var body = '';
response.on('data', function(d) {
body += d;
});
At the end
the body
will contain the whole response body:
response.on('end', function() {
try {
var jsonResponse=JSON.parse(body);
if(success) return success( jsonResponse );
} catch(ex) { // bad json
if(error) return error(ex.toString());
}
});
It is safe to wrap with a try
...catchthe
JSON.parse` since you cannot be sure that it is a well-formatted json actually and there is no way to be sure of it at the time you do the request.
Module: SimpleAPI
/**
* Simple POST and GET
* @author Loreto Parisi (loretoparisi at gmail dot com)
*/
(function() {
var SimpleAPI;
SimpleAPI = (function() {
var qs = require('querystring');
/**
* API Object model
* @author Loreto Parisi (loretoparisi at gmail dot com)
*/
function SimpleAPI(host,port,timeout,ssl,debug,json) {
this.host=host;
this.port=port;
this.timeout=timeout;
/** true to use ssl - defaults to true */
this.ssl=ssl || true;
/** true to console log */
this.debug=debug;
/** true to parse response as json - defaults to true */
this.json= (typeof(json)!='undefined')?json:true;
this.requestUrl='';
if(ssl) { // use ssl
this.http = require('https');
} else { // go unsafe, debug only please
this.http = require('http');
}
}
/**
* HTTP GET
* @author Loreto Parisi (loretoparisi at gmail dot com)
*/
SimpleAPI.prototype.Get = function(path, headers, params, success, error, timeout) {
var self=this;
if(params) {
var queryString=qs.stringify(params);
if( queryString ) {
path+="?"+queryString;
}
}
var options = {
headers : headers,
hostname: this.host,
path: path,
method: 'GET'
};
if(this.port && this.port!='80') { // port only if ! 80
options['port']=this.port;
}
if(self.debug) {
console.log( "SimpleAPI.Get", headers, params, options );
}
var request=this.http.get(options, function(response) {
if(self.debug) { // debug
console.log( JSON.stringify(response.headers) );
}
// Continuously update stream with data
var body = '';
response.on('data', function(d) {
body += d;
});
response.on('end', function() {
try {
if(self.json) {
var jsonResponse=JSON.parse(body);
if(success) return success( jsonResponse );
}
else {
if(success) return success( body );
}
} catch(ex) { // bad json
if(error) return error( ex.toString() );
}
});
});
request.on('socket', function (socket) {
socket.setTimeout( self.timeout );
socket.on('timeout', function() {
request.abort();
if(timeout) return timeout( new Error('request timed out') );
});
});
request.on('error', function (e) {
// General error, i.e.
// - ECONNRESET - server closed the socket unexpectedly
// - ECONNREFUSED - server did not listen
// - HPE_INVALID_VERSION
// - HPE_INVALID_STATUS
// - ... (other HPE_* codes) - server returned garbage
console.log(e);
if(error) return error(e);
});
request.on('timeout', function () {
// Timeout happend. Server received request, but not handled it
// (i.e. doesn't send any response or it took to long).
// You don't know what happend.
// It will emit 'error' message as well (with ECONNRESET code).
req.abort();
if(timeout) return timeout( new Error('request timed out') );
});
self.requestUrl = (this.ssl?'https':'http') + '://' + request._headers['host'] + request.path;
if(self.debug) {
console.log("SimpleAPI.Post",self.requestUrl);
}
request.end();
} //RequestGet
/**
* HTTP POST
* @author Loreto Parisi (loretoparisi at gmail dot com)
*/
SimpleAPI.prototype.Post = function(path, headers, params, body, success, error, timeout) {
var self=this;
if(params) {
var queryString=qs.stringify(params);
if( queryString ) {
path+="?"+queryString;
}
}
var bodyString=JSON.stringify(body)
var _headers = {
'Content-Length': Buffer.byteLength(bodyString)
};
for (var attrname in headers) { _headers[attrname] = headers[attrname]; }
var options = {
headers : _headers,
hostname: this.host,
path: path,
method: 'POST',
qs : qs.stringify(params)
};
if(this.port && this.port!='80') { // port only if ! 80
options['port']=this.port;
}
if(self.debug) {
console.log( "SimpleAPI.Post\n%s\n%s", JSON.stringify(_headers,null,2), JSON.stringify(options,null,2) );
}
if(self.debug) {
console.log("SimpleAPI.Post body\n%s", JSON.stringify(body,null,2) );
}
var request=this.http.request(options, function(response) {
if(self.debug) { // debug
console.log( JSON.stringify(response.headers) );
}
// Continuously update stream with data
var body = '';
response.on('data', function(d) {
body += d;
});
response.on('end', function() {
try {
console.log("END", body);
var jsonResponse=JSON.parse(body);
if(success) return success( jsonResponse );
} catch(ex) { // bad json
if(error) return error(ex.toString());
}
});
});
request.on('socket', function (socket) {
socket.setTimeout( self.timeout );
socket.on('timeout', function() {
request.abort();
if(timeout) return timeout( new Error('request timed out') );
});
});
request.on('error', function (e) {
// General error, i.e.
// - ECONNRESET - server closed the socket unexpectedly
// - ECONNREFUSED - server did not listen
// - HPE_INVALID_VERSION
// - HPE_INVALID_STATUS
// - ... (other HPE_* codes) - server returned garbage
console.log(e);
if(error) return error(e);
});
request.on('timeout', function () {
// Timeout happend. Server received request, but not handled it
// (i.e. doesn't send any response or it took to long).
// You don't know what happend.
// It will emit 'error' message as well (with ECONNRESET code).
req.abort();
if(timeout) return timeout( new Error('request timed out') );
});
self.requestUrl = (this.ssl?'https':'http') + '://' + request._headers['host'] + request.path;
if(self.debug) {
console.log("SimpleAPI.Post",self.requestUrl);
}
request.write( bodyString );
request.end();
} //RequestPost
return SimpleAPI;
})();
module.exports = SimpleAPI
}).call(this);
Usage:
// Parameters
// domain: example.com
// ssl:true, port:80
// timeout: 30 secs
// debug: true
// json response:true
var api = new SimpleAPI('posttestserver.com', 80, 1000 * 10, true, true, true);
var headers = {
'Content-Type' : 'application/json',
'Accept' : 'application/json'
};
var params = {
"dir" : "post-test"
};
var method = 'post.php';
api.Post(method, headers, params, body
, function(response) { // success
console.log( response );
}
, function(error) { // error
console.log( error.toString() );
}
, function(error) { // timeout
console.log( new Error('timeout error') );
});
I'm sure this will be an unpopular answer, but it works...
ProducerDTO[] p = new ProducerDTO[1];
producersProcedureActive
.stream()
.filter(producer -> producer.getPod().equals(pod))
.findFirst()
.ifPresent(producer -> {producersProcedureActive.remove(producer); p[0] = producer;}
p[0]
will either hold the found element or be null.
The "trick" here is circumventing the "effectively final" problem by using an array reference that is effectively final, but setting its first element.
I had the same issue and solved it by closing the response at the end of the method:
try {
// make the request and get the entity
} catch(final Exception e) {
// handle the exception
} finally {
if(response != null) {
response.close();
}
}
Your main problem is thinking that the variable you declared outside of the template is the same variable being "set" inside the choose statement. This is not how XSLT works, the variable cannot be reassigned. This is something more like what you want:
<xsl:template match="class">
<xsl:copy><xsl:apply-templates select="@*|node()"/></xsl:copy>
<xsl:variable name="subexists">
<xsl:choose>
<xsl:when test="joined-subclass">true</xsl:when>
<xsl:otherwise>false</xsl:otherwise>
</xsl:choose>
</xsl:variable>
subexists: <xsl:value-of select="$subexists" />
</xsl:template>
And if you need the variable to have "global" scope then declare it outside of the template:
<xsl:variable name="subexists">
<xsl:choose>
<xsl:when test="/path/to/node/joined-subclass">true</xsl:when>
<xsl:otherwise>false</xsl:otherwise>
</xsl:choose>
</xsl:variable>
<xsl:template match="class">
subexists: <xsl:value-of select="$subexists" />
</xsl:template>
This is for Mac users:
first of all you have to clarify where the class file is... so for example, in 'Terminal' (A Mac Application) you would type:
cd
then wherever you file is e.g:
cd /Users/CollarBlast/Desktop/JavaFiles/
then you would hit enter. After that you would do the command. e.g:
cd /Users/CollarBlast/Desktop/JavaFiles/
(then i would press enter...)
Then i would type the command:
javap -c JavaTestClassFile.class
(then i would press enter again...)
and hopefully it should work!
Here is a function using recursion which will work on any arbitrary nested list.
def flatten(nested_lst):
""" Return a list after transforming the inner lists
so that it's a 1-D list.
>>> flatten([[[],["a"],"a"],[["ab"],[],"abc"]])
['a', 'a', 'ab', 'abc']
"""
if not isinstance(nested_lst, list):
return(nested_lst)
res = []
for l in nested_lst:
if not isinstance(l, list):
res += [l]
else:
res += flatten(l)
return(res)
>>> flatten([[[],["a"],"a"],[["ab"],[],"abc"]])
['a', 'a', 'ab', 'abc']
The m2e plugin uses it's own distribution of Maven, packaged with the plugin.
In order to use Maven from command line, you need to have it installed as a standalone application. Here is an instruction explaining how to do it in Windows
Once Maven is properly installed (i.e. be sure that MAVEN_HOME
, JAVA_HOME
and PATH
variables are set correctly): you must run mvn eclipse:eclipse
from the directory containing the pom.xml
.
May be this will help you
private void openSettings() {
Intent intent = new Intent(Settings.ACTION_APPLICATION_DETAILS_SETTINGS);
Uri uri = Uri.fromParts("package", getPackageName(), null);
intent.setData(uri);
startActivityForResult(intent, 101);
}
multiple inserts are faster but it has thredshould. another thrik is disabling constrains checks temprorary make inserts much much faster. It dosn't matter your table has it or not. For example test disabling foreign keys and enjoy the speed:
SET FOREIGN_KEY_CHECKS=0;
offcourse you should turn it back on after inserts by:
SET FOREIGN_KEY_CHECKS=1;
this is common way to inserting huge data. the data integridity may break so you shoud care of that before disabling foreign key checks.
I think this should work:
String rank = card.substring(0,1);
String suit = card.substring(1);
String cards = "A23456789TJQKDHSCl";
String[] name = {"Ace","Two","Three","Four","Five","Six","Seven","Eight","Nine","Ten","Jack","Queen","King","Diamonds","Hearts","Spades","Clubs"};
String c ="";
for(int a = 0, b = 1; a<cards.length()-1; b=a+1, a++ )
{
if( rank.equals( cards.substring(a,b) ) )
{
c+=name[a];
}
}
System.out.println(c);
just try this..
you need to open the connection using connection.open()
on the SqlCommand.Connection
object before executing ExecuteNonQuery()
Use html_entity_decode()
and htmlentities()
.
$html = html_entity_decode(htmlentities($html, ENT_QUOTES, 'UTF-8'), ENT_QUOTES , 'ISO-8859-1');
htmlentities()
formats your input into UTF8
and html_entity_decode()
formats it back to ISO-8859-1
.
An intent is basically a way of passing data from one activity to other activity
With SQL Server you'd SELECT SCOPE_IDENTITY() to get the last identity value for the current process.
With SQlite, it looks like for an autoincrement you would do
SELECT last_insert_rowid()
immediately after your insert.
http://www.mail-archive.com/[email protected]/msg09429.html
In answer to your comment to get this value you would want to use SQL or OleDb code like:
using (SqlConnection conn = new SqlConnection(connString))
{
string sql = "SELECT last_insert_rowid()";
SqlCommand cmd = new SqlCommand(sql, conn);
conn.Open();
int lastID = (Int32) cmd.ExecuteScalar();
}
CREATE PROCEDURE sp_deleteUserDetails
@Email varchar(255)
AS
declare @tempRegId as int
Delete UserRegistration where Email=@Email
set @tempRegId = (select Id from UserRegistration where Email = @Email)
Delete UserProfile where RegID=@tempRegId
RETURN 0
I don't know which version of MySQL you're using, but here are possible locations of the my.cnf file for version 5.5 (taken from here) on Mac OS X:
/etc/my.cnf
/etc/mysql/my.cnf
SYSCONFDIR/my.cnf
$MYSQL_HOME/my.cnf
defaults-extra-file
(the file specified with --defaults-extra-file=path
, if any)~/.my.cnf
For the IBM JVM, the command is the following:
java -verbose:sizes -version
For more information about the IBM SDK for Java 8: http://www-01.ibm.com/support/knowledgecenter/SSYKE2_8.0.0/com.ibm.java.lnx.80.doc/diag/appendixes/defaults.html?lang=en
With Docker, the proper way to pass this sort of information is through environment variables.
So with the same Dockerfile, change the script to
#!/bin/bash
echo $FOO
After building, use the following docker command:
docker run -e FOO="hello world!" test
With minor corrections:
function rearrange()
{
var windowHeight;
if (typeof window.innerWidth != 'undefined')
{
windowHeight = window.innerHeight;
}
// IE6 in standards compliant mode (i.e. with a valid doctype as the first
// line in the document)
else if (typeof document.documentElement != 'undefined'
&& typeof document.documentElement.clientWidth != 'undefined'
&& document.documentElement.clientWidth != 0)
{
windowHeight = document.documentElement.clientHeight;
}
// older versions of IE
else
{
windowHeight = document.getElementsByTagName('body')[0].clientHeight;
}
document.getElementById("foobar").style.height = (windowHeight - document.getElementById("foobar").offsetTop - 6)+ "px";
}
For removing the default 'blue-border' from button on button focus:
In Html:
<button class="new-button">New Button...</button>
And in Css
button.new-button:focus {
outline: none;
}
Hope it helps :)
I'm on Windows, and I got it by giving command go help gopath
to cmd, and read the bold text in the instruction,
that is if code you wnat to install is at ..BaseDir...\SomeProject\src\basic\set
, the GOPATH should not be the same location as code, it should be just Base Project DIR: ..BaseDir...\SomeProject
.
The GOPATH environment variable lists places to look for Go code. On Unix, the value is a colon-separated string. On Windows, the value is a semicolon-separated string. On Plan 9, the value is a list.
If the environment variable is unset, GOPATH defaults to a subdirectory named "go" in the user's home directory ($HOME/go on Unix, %USERPROFILE%\go on Windows), unless that directory holds a Go distribution. Run "go env GOPATH" to see the current GOPATH.
See https://golang.org/wiki/SettingGOPATH to set a custom GOPATH.
Each directory listed in GOPATH must have a prescribed structure:
The src directory holds source code. The path below src determines the import path or executable name.
The pkg directory holds installed package objects. As in the Go tree, each target operating system and architecture pair has its own subdirectory of pkg (pkg/GOOS_GOARCH).
If DIR is a directory listed in the GOPATH, a package with source in DIR/src/foo/bar can be imported as "foo/bar" and has its compiled form installed to "DIR/pkg/GOOS_GOARCH/foo/bar.a".
The bin directory holds compiled commands. Each command is named for its source directory, but only the final element, not the entire path. That is, the command with source in DIR/src/foo/quux is installed into DIR/bin/quux, not DIR/bin/foo/quux. The "foo/" prefix is stripped so that you can add DIR/bin to your PATH to get at the installed commands. If the GOBIN environment variable is set, commands are installed to the directory it names instead of DIR/bin. GOBIN must be an absolute path.
Here's an example directory layout:
GOPATH=/home/user/go /home/user/go/ src/ foo/ bar/ (go code in package bar) x.go quux/ (go code in package main) y.go bin/ quux (installed command) pkg/ linux_amd64/ foo/ bar.a (installed package object)
..........
if GOPATH has been set to Base Project DIR and still has this problem, in windows you can try to set GOBIN as Base Project DIR\bin
or %GOPATH%\bin
.
actually I found a novel solution that really helped me out, If you are especially concerned with the index of a certain value in a list or data set, you can just set the value of dictionary to that Index!:
Just watch:
list = ['a', 'b', 'c']
dictionary = {}
counter = 0
for i in list:
dictionary[i] = counter
counter += 1
print(dictionary) # dictionary = {'a':0, 'b':1, 'c':2}
Now through the power of hashmaps you can pull the index your entries in constant time (aka a whole lot faster)
For anyone else who stumbles across this thread but needs to find or create an object with attributes that might change depending on the circumstances, add the following method to your model:
# Return the first object which matches the attributes hash
# - or -
# Create new object with the given attributes
#
def self.find_or_create(attributes)
Model.where(attributes).first || Model.create(attributes)
end
Optimization tip: regardless of which solution you choose, consider adding indexes for the attributes you are querying most frequently.
I think the answer is pretty simple (unless I'm missing something?)
SELECT
CASE
WHEN col1 > col2 THEN SUM(col3*col4)
ELSE 0
END AS some_product
FROM some_table
GROUP BY
CASE
WHEN col1 > col2 THEN SUM(col3*col4)
ELSE 0
END
You can put the CASE STATEMENT in the GROUP BY verbatim (minus the alias column name)
Add data-backdrop="false"
option as an attribute to the button which opens the modal.
I don't know a way to do what you want exactly, but a workaround might be:
run: ./prog
./prog $(ARGS)
Then:
make ARGS="asdf" run
# or
make run ARGS="asdf"
sample table
#import "StartreserveViewController.h"
#import "CollectionViewController.h"
#import "TableViewCell1.h"
@interface StartreserveViewController ()
{
NSArray *name;
NSArray *images;
NSInteger selectindex;
}
@end
@implementation StartreserveViewController
- (void)viewDidLoad {
[super viewDidLoad];
// Do any additional setup after loading the view.
self.view.backgroundColor = [UIColor blueColor];
_startReservetable.backgroundColor = [UIColor blueColor];
name = [[NSArray alloc]initWithObjects:@"Mobiles",@"Costumes",@"Shoes",
nil];
images = [[NSArray
alloc]initWithObjects:@"mobilestitle.jpg",@"costumetitle.jpeg",
@"shoestitle.png",nil];
}
- (void)didReceiveMemoryWarning {
[super didReceiveMemoryWarning];
// Dispose of any resources that can be recreated.
}
-(NSInteger)numberOfSectionsInTableView:(UITableView *)tableView
{
return 1;
}
-(NSInteger)tableView:(UITableView *)tableView numberOfRowsInSection:
(NSInteger)section
{
return 3;
}
- (UITableViewCell *)tableView:(UITableView *)tableView
cellForRowAtIndexPath:(NSIndexPath *)indexPath
{
static NSString *cellId = @"tableview";
TableViewCell1 *cell =[tableView dequeueReusableCellWithIdentifier:cellId];
cell.cellTxt .text = [name objectAtIndex:indexPath.row];
cell.cellImg.image = [UIImage imageNamed:[images
objectAtIndex:indexPath.row]];
return cell;
}
-(void)tableView:(UITableView *)tableView didSelectRowAtIndexPath:
(NSIndexPath *)indexPath
{
selectindex = indexPath.row;
[self performSegueWithIdentifier:@"second" sender:self];
}
#pragma mark - Navigation
// In a storyboard-based application, you will often want to do a little
- (void)prepareForSegue:(UIStoryboardSegue *)segue sender:(id)sender {
if ([segue.identifier isEqualToString:@"second"])
{
CollectionViewController *obj = segue.destinationViewController;
obj.receivename = [name objectAtIndex:selectindex];
}
// Get the new view controller using [segue destinationViewController].
// Pass the selected object to the new view controller.
}
@end
.h
#import <UIKit/UIKit.h>
@interface StartreserveViewController :
UIViewController<UITableViewDelegate,UITableViewDataSource>
@property (strong, nonatomic) IBOutlet UITableView *startReservetable;
@end
Assuming your test classes are in the same package (under a different source root) as your classes under test you can simply create the mock:
YourClass yourObject = mock(YourClass.class);
and call the methods you want to test just as you would any other method.
You need to provide expectations for each method that is called with the expectation on any concrete methods calling the super method - not sure how you'd do that with Mockito, but I believe it's possible with EasyMock.
All this is doing is creating a concrete instance of YouClass
and saving you the effort of providing empty implementations of each abstract method.
As an aside, I often find it useful to implement the abstract class in my test, where it serves as an example implementation that I test via its public interface, although this does depend on the functionality provided by the abstract class.
If you want to stick to command line FTP, you should try NcFTP. Then you can use get -R to recursively get a folder. You will also get completion.
From the doc:
public void setDivider(Drawable divider) on ListView
/**
* Sets the drawable that will be drawn between each item in the list. If the drawable does
* not have an intrinsic height, you should also call {@link #setDividerHeight(int)}
*
* @param divider The drawable to use.
*/
Looks like setDividerHeight()
must be called in order for the divider to show up if it has no intrinsic height
From here:
"You can also refer to the properties of the data object via that object, instead of accessing them as variables." Meaning that for OP's case this will work (with a significantly smaller change than other possible solutions):
<% if (obj.date) { %><span class="date"><%= date %></span><% } %>
One can also do this with pylab and xticks
import matplotlib
import matplotlib.pyplot as plt
x = [0,1,2]
y = [90,40,65]
labels = ['high', 'low', 37337]
plt.plot(x,y, 'r')
plt.xticks(x, labels, rotation='vertical')
plt.show()
http://matplotlib.org/examples/ticks_and_spines/ticklabels_demo_rotation.html
Select Into functionality only works for PL/SQL Block, when you use Execute immediate , oracle interprets v_query_str as a SQL Query string so you can not use into .will get keyword missing Exception. in example 2 ,we are using begin end; so it became pl/sql block and its legal.
I don't know if this will help with your current predicament as this is a recent feature, but you can specify the visibility of symbols in a global manner. Passing -fvisibility=hidden -fvisibility-inlines-hidden
at compilation can help the linker to later get rid of unneeded symbols. If you're producing an executable (as opposed to a shared library) there's nothing more to do.
More information (and a fine-grained approach for e.g. libraries) is available on the GCC wiki.
From effective java book
.
public class Stack {
private Object[] elements;
private int size = 0;
private static final int DEFAULT_INITIAL_CAPACITY = 16;
public Stack() {
elements = new Object[DEFAULT_INITIAL_CAPACITY];
}
public void push(Object e) {
ensureCapacity();
elements[size++] = e;
}
public Object pop() {
if (size == 0)
throw new EmptyStackException();
return elements[--size];
}
/**
* Ensure space for at least one more element, roughly doubling the capacity
* each time the array needs to grow.
*/
private void ensureCapacity() {
if (elements.length == size)
elements = Arrays.copyOf(elements, 2 * size + 1);
}
}
Can you spot the memory leak? So where is the memory leak? If a stack grows and then shrinks, the objects that were popped off the stack will not be garbage collected, even if the program using the stack has no more references to them. This is because the stack maintains obsolete references to these objects. An obsolete reference is simply a reference that will never be dereferenced again. In this case, any references outside of the “active portion” of the element array are obsolete. The active portion consists of the elements whose index is less than size.
So first of all, pandas updates using the index. When an update command does not update anything, check both left-hand side and right-hand side. If you don't update the indices to follow your identification logic, you can do something along the lines of
>>> df.loc[df.filename == 'test2.dat', 'n'] = df2[df2.filename == 'test2.dat'].loc[0]['n']
>>> df
Out[331]:
filename m n
0 test0.dat 12 None
1 test2.dat 13 16
If you want to do this for the whole table, I suggest a method I believe is superior to the previously mentioned ones: since your identifier is filename
, set filename
as your index, and then use update()
as you wanted to. Both merge
and the apply()
approach contain unnecessary overhead:
>>> df.set_index('filename', inplace=True)
>>> df2.set_index('filename', inplace=True)
>>> df.update(df2)
>>> df
Out[292]:
m n
filename
test0.dat 12 None
test2.dat 13 16
The MDN documentation shows how the getItem
method is implementated:
Object.defineProperty(oStorage, "getItem", {
value: function (sKey) { return sKey ? this[sKey] : null; },
writable: false,
configurable: false,
enumerable: false
});
If the value isn't set, it returns null
. You are testing to see if it is undefined
. Check to see if it is null
instead.
if(localStorage.getItem("username") === null){
Use the below code to resolve the issue.
import json
from numpyencoder import NumpyEncoder
alerts = {'upper':[1425],'lower':[576],'level':[2],'datetime':['2012-08-08
15:30']}
afile = open('test.json','w')
afile.write(json.dumps(alerts,encoding='UTF-8',cls=NumpyEncoder))
afile.close()
You can include the .c files, no problem with it logically, but according to the standard to hide the implementation of the function but to provide the binaries, headers and source files techniques are used, where the headers are used to define the function signatures where as the source files have the implementation. When you sell your project to outside you just ship the headers and binaries(libs and dlls) so that you hide the main logic behind your function implementation.
Here the problem is you have to use "" instead of <> as you are including a file which is located inside the same directory to the file where the inclusion happens. It is common to both .c and .h files
Personally, the simplest way that I have found and works great for me is as follows:
Create an interface inside your "RecycleAdapter" Class (Subclass)
public interface ClickCallback {
void onItemClick(int position);
}
Add a variable of the interface as a parameter in the Constructor.
private String[] items;
private ClickCallback callback;
public RecyclerAdapter(String[] items, ClickCallback clickCallback) {
this.items = items;
this.callback = clickCallback;
}
Set a Click listener in the ViewHolder (another subclass) and pass the 'position' to through the interface
AwesomeViewHolder(View itemView) {
super(itemView);
itemView.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
callback.onItemClick(getAdapterPosition());
}
});
mTextView = (TextView) itemView.findViewById(R.id.mTextView);
}
Now, when initializing the recycler adapter in an activity/fragment, just Create a new 'ClickCallback' (interface)
String[] values = {"Hello","World"};
RecyclerAdapter recyclerAdapter = new RecyclerAdapter(values, new RecyclerAdapter.ClickCallback() {
@Override
public void onItemClick(int position) {
// Do anything with the item position
}
});
That's it for me. :)
Expanding on @Renaud idea, cors now provides a very easy way of doing this:
From cors official documentation found here:
" origin: Configures the Access-Control-Allow-Origin CORS header. Possible values: Boolean - set origin to true to reflect the request origin, as defined by req.header('Origin'), or set it to false to disable CORS. "
Hence we simply do the following:
const app = express();
const corsConfig = {
credentials: true,
origin: true,
};
app.use(cors(corsConfig));
Lastly I think it is worth mentioning that there are use cases where we would want to allow cross origin requests from anyone; for example, when building a public REST API.
NOTE: I would have liked to leave this as a comment on his answer, but unfortunately I don't have the reputation points.
I am using this script after I rename my iOS Project. It helps to change the directories name and make the names in sync.
http://github.com/ytbryan/rename
NOTE: you will need to manually change the scheme's name.
you can use Alt + Enter in Android Studio as Shortcut Key
Others have suggested ways to make newlist after filtering e.g.
newl = [x for x in l if x not in [2,3,7]]
or
newl = filter(lambda x: x not in [2,3,7], l)
but from your question it looks you want in-place modification for that you can do this, this will also be much much faster if original list is long and items to be removed less
l = range(1,10)
for o in set([2,3,7,11]):
try:
l.remove(o)
except ValueError:
pass
print l
output: [1, 4, 5, 6, 8, 9]
I am checking for ValueError exception so it works even if items are not in orginal list.
Also if you do not need in-place modification solution by S.Mark
is simpler.
If you want to know if "1" ou 1 can be casted to a number, you can use this code :
if (isNaN(i*1)) {
console.log('i is not a number');
}
arr.length = n
This might be surprising but length
property of an array is not only used to get number of array elements but it's also writable and can be used to set array's length MDN link. This will mutate the array.
If you don't care about immutability or don't want to allocate memory i.e. for a game this will be the fastest way.
to empty an array
arr.length = 0
Use (eventName)
for while binding event to DOM, basically ()
is used for event binding. Also use ngModel
to get two way binding for myModel
variable.
Markup
<input type="text" [(ngModel)]="myModel" (blur)="onBlurMethod()">
Code
export class AppComponent {
myModel: any;
constructor(){
this.myModel = '123';
}
onBlurMethod(){
alert(this.myModel)
}
}
Alternative(not preferable)
<input type="text" #input (blur)="onBlurMethod($event.target.value)">
For model driven form to fire validation on blur
, you could pass updateOn
parameter.
ctrl = new FormControl('', {
updateOn: 'blur', //default will be change
validators: [Validators.required]
});
I set it to automatically clean up on check-in, which is usually good enough for me. If something is too ugly, I'll just hit the shortcut (Ctrl-Alt-L, Return). And I see they have an option for auto-formatting pasted code, although I've never used that.
theme root directory path code
<?php $root_path = get_home_path(); ?>
print "Path: ".$root_path;
Return "Path: /var/www/htdocs/" or "Path: /var/www/htdocs/wordpress/" if it is subfolder
Theme Root Path
$theme_root = get_theme_root();
echo $theme_root
Results:- /home/user/public_html/wp-content/themes
for some applications, for example google chrome, they store it under /opt. you can follow the above instruction using dpkg -l to get the correct naming then dpkg -L to get the detail.
hope it helps
Change
android:useLevel="false"
to
android:useLevel="true"
for second sahpe with id="@android:id/progress
hope it works
There's an element in web.config to configure the max size of the uploaded file:
<httpRuntime
maxRequestLength="1048576"
/>
Finally, I found a solution to this problem without reinstalling npm and I'm posting it because in future it will help someone, Most of the time this error occurs javascript heap went out of the memory. As the error says itself this is not a problem with npm. Only we have to do is
instead of,
npm run build -prod
extend the javascript memory by following,
node --max_old_space_size=4096 node_modules/@angular/cli/bin/ng build --prod
I use SQLYog at home and work. It turns out they DO have a free open-source version, though sadly they've been trying to hide that fact for the last few years.
You can download the open-source version from https://github.com/webyog/sqlyog-community - just click the "Download SQLyog Community Version" link.
we can do this easily with html5 also, just need to add some jquery code
HTML
<form>
<div class="form-group options">
<input type="checkbox" name="type[]" value="A" required /> A
<input type="checkbox" name="type[]" value="B" required /> B
<input type="checkbox" name="type[]" value="C" required /> C
<input type="submit">
</div>
</form>
Jquery
$(function(){
var requiredCheckboxes = $('.options :checkbox[required]');
requiredCheckboxes.change(function(){
if(requiredCheckboxes.is(':checked')) {
requiredCheckboxes.removeAttr('required');
} else {
requiredCheckboxes.attr('required', 'required');
}
});
});
Could use sprintf
to accomplish this:
awk '{str = sprintf("%s %s", $1, $2)} END {print str}' file
In my case the error was due to the referencing
table is MyISAM
where as referring
table was InnoDB
.
Converted
table engine from MyISAM to InnoDB
solves the problem for me.
ALTER TABLE table_name ENGINE=InnoDB;
Yes, Json.Net is what you need. You basically want to deserialize a Json string into an array of objects
.
See their examples:
string myJsonString = @"{
"Name": "Apple",
"Expiry": "\/Date(1230375600000+1300)\/",
"Price": 3.99,
"Sizes": [
"Small",
"Medium",
"Large"
]
}";
// Deserializes the string into a Product object
Product myProduct = JsonConvert.DeserializeObject<Product>(myJsonString);
I faced the same problem in Derby IBM DB2 embedded database in a java desktop application, and after a day of searching I finally found how it's done :
SELECT days (table1.datecolomn) - days (current date) FROM table1 WHERE days (table1.datecolomn) - days (current date) > 5
for more information check this site
Using your radio button's ID, try rb.SelectedValue
.
Since the jar file 'executes' then it contains compiled java files known as .class files. You cannot import it to eclipse and modify the code. You should ask the supplier of the "demo" for the "source code". (or check the page you got the demo from for the source code)
Unless, you want to decompile the .class files and import to Eclipse. That may not be the case for starters.
If your list got large enough and you only expected to find the value in a sparse number of indices, consider that this code could execute much faster because you don't have to iterate every value in the list.
lookingFor = 1
i = 0
index = 0
try:
while i < len(testlist):
index = testlist.index(lookingFor,i)
i = index + 1
print index
except ValueError: #testlist.index() cannot find lookingFor
pass
If you expect to find the value a lot you should probably just append "index" to a list and print the list at the end to save time per iteration.