SIMPLIEST WAY TO HANDLE TIMEOUT LOOP
function myFunc (terminator = false) {
if(terminator) {
clearTimeout(timeOutVar);
} else {
// do something
timeOutVar = setTimeout(function(){myFunc();}, 1000);
}
}
myFunc(true); // -> start loop
myFunc(false); // -> end loop
In addition to the very great answer above I want to mention application wide events which can be very useful in an MVC setup to enable communication between controllers. (extjs4.1)
Lets say we have a controller Station (Sencha MVC examples) with a select box:
Ext.define('Pandora.controller.Station', {
extend: 'Ext.app.Controller',
...
init: function() {
this.control({
'stationslist': {
selectionchange: this.onStationSelect
},
...
});
},
...
onStationSelect: function(selModel, selection) {
this.application.fireEvent('stationstart', selection[0]);
},
...
});
When the select box triggers a change event, the function onStationSelect
is fired.
Within that function we see:
this.application.fireEvent('stationstart', selection[0]);
This creates and fires an application wide event that we can listen to from any other controller.
Thus in another controller we can now know when the station select box has been changed. This is done through listening to this.application.on
as follows:
Ext.define('Pandora.controller.Song', {
extend: 'Ext.app.Controller',
...
init: function() {
this.control({
'recentlyplayedscroller': {
selectionchange: this.onSongSelect
}
});
// Listen for an application wide event
this.application.on({
stationstart: this.onStationStart,
scope: this
});
},
....
onStationStart: function(station) {
console.info('I called to inform you that the Station controller select box just has been changed');
console.info('Now what do you want to do next?');
},
}
If the selectbox has been changed we now fire the function onStationStart
in the controller Song
also ...
From the Sencha docs:
Application events are extremely useful for events that have many controllers. Instead of listening for the same view event in each of these controllers, only one controller listens for the view event and fires an application-wide event that the others can listen for. This also allows controllers to communicate with one another without knowing about or depending on each other’s existence.
In my case: Clicking on a tree node to update data in a grid panel.
Update 2016 thanks to @gm2008 from the comments below:
In terms of firing application-wide custom events, there is a new method now after ExtJS V5.1 is published, which is using Ext.GlobalEvents
.
When you fire events, you can call: Ext.GlobalEvents.fireEvent('custom_event');
When you register a handler of the event, you call: Ext.GlobalEvents.on('custom_event', function(arguments){/* handler codes*/}, scope);
This method is not limited to controllers. Any component can handle a custom event through putting the component object as the input parameter scope.
Try this:
myStore.each( function (model) {
console.log( model.get('name') );
});
Another approach in 3.4 (don't know if this is proper Ext): You can have a delete handler like this, assuming every row has a 'delete' button.
handler: function(grid, rowIndex, colIndex) {
var rec = grid.getStore().getAt(rowIndex);
var id = rec.get('id');
// some DELETE/GET ajax callback here...
// pass in 'id' var or some key
// inside success
grid.getStore().removeAt(rowIndex);
}
In ExtJs, you can use
xtype: 'image'
to render a image.
Here is a fiddle showing rendering of binary data with extjs.
atob -- > converts ascii to binary
btoa -- > converts binary to ascii
Ext.application({
name: 'Fiddle',
launch: function () {
var srcBase64 = "data:image/jpeg;base64," + btoa(atob("iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAYAAAAfFcSJAAAADUlEQVR42mP8H8hYDwAFegHS8+X7mgAAAABJRU5ErkJggg=="));
Ext.create("Ext.panel.Panel", {
title: "Test",
renderTo: Ext.getBody(),
height: 400,
items: [{
xtype: 'image',
width: 100,
height: 100,
src: srcBase64
}]
})
}
});
Nothing compares to extjs in terms of community size and presence on StackOverflow. Despite previous controversy, Ext JS now has a GPLv3 open source license. Its learning curve is long, but it can be quite rewarding once learned. Ext JS lacks a Material Design theme, and the team has repeatedly refused to release the source code on GitHub. For mobile, one must use the separate Sencha Touch library.
Have in mind also that,
large JavaScript libraries, such as YUI, have been receiving less attention from the community. Many developers today look at large JavaScript libraries as walled gardens they don’t want to be locked into.
-- Announcement of YUI development being ceased
That said, below are a number of Ext JS alternatives currently available.
Blueprint is a React-based UI toolkit developed by big data analytics company Palantir in TypeScript, and "optimized for building complex data-dense interfaces for desktop applications". Actively developed on GitHub as of May 2019, with comprehensive documentation. Components range from simple (chips, toast, icons) to complex (tree, data table, tag input with autocomplete, date range picker. No accordion or resizer.
Blueprint targets modern browsers (Chrome, Firefox, Safari, IE 11, and Microsoft Edge) and is licensed under a modified Apache license.
Sandbox / demo • GitHub • Docs
Webix - an advanced, easy to learn, mobile-friendly, responsive and rich free&open source JavaScript UI components library. Webix spun off from DHTMLX Touch (a project with 8 years of development behind it - see below) and went on to become a standalone UI components framework. The GPL3 edition allows commercial use and lets non-GPL applications using Webix keep their license, e.g. MIT, via a license exemption for FLOSS. Webix has 55 UI widgets, including trees, grids, treegrids and charts. Funding comes from a commercial edition with some advanced widgets (Pivot, Scheduler, Kanban, org chart etc.). Webix has an extensive list of free and commercial widgets, and integrates with most popular frameworks (React, Vue, Meteor, etc) and UI components.
Skins look modern, and include a Material Design theme. The Touch theme also looks quite Material Design-ish. See also the Skin Builder.
Minimal GitHub presence, but includes the library code, and the documentation (which still needs major improvements). Webix suffers from a having a small team and a lack of marketing. However, they have been responsive to user feedback, both on GitHub and on their forum.
The library was lean (128Kb gzip+minified for all 55 widgets as of ~2015), faster than ExtJS, dojo and others, and the design is pleasant-looking. The current version of Webix (v6, as of Nov 2018) got heavier (400 - 676kB minified but NOT gzipped).
The demos on Webix.com look and function great. The developer, XB Software, uses Webix in solutions they build for paying customers, so there's likely a good, funded future ahead of it.
Webix aims for backwards compatibility down to IE8, and as a result carries some technical debt.
Wikipedia • GitHub • Playground/sandbox • Admin dashboard demo • Demos • Widget samples
react-md - MIT-licensed Material Design UI components library for React. Responsive, accessible. Implements components from simple (buttons, cards) to complex (sortable tables, autocomplete, tags input, calendars). One lead author, ~1900 GitHub stars.
kendo - jQuery-based UI toolkit with 40+ basic open-source widgets, plus commercial professional widgets (grids, trees, charts etc.). Responsive&mobile support. Works with Bootstrap and AngularJS. Modern, with Material Design themes. The documentation is available on GitHub, which has enabled numerous contributions from users (4500+ commits, 500+ PRs as of Jan 2015).
Well-supported commercially, claiming millions of developers, and part of a large family of developer tools. Telerik has received many accolades, is a multi-national company (Bulgaria, US), was acquired by Progress Software, and is a thought leader.
A Kendo UI Professional developer license costs $700 and posting access to most forums is conditioned upon having a license or being in the trial period.
[Wikipedia] • GitHub/Telerik • Demos • Playground • Tools
OpenUI5 - jQuery-based UI framework with 180 widgets, Apache 2.0-licensed and fully-open sourced and funded by German software giant SAP SE.
The community is much larger than that of Webix, SAP is hiring developers to grow OpenUI5, and they presented OpenUI5 at OSCON 2014.
The desktop themes are rather lackluster, but the Fiori design for web and mobile looks clean and neat.
Wikipedia • GitHub • Mobile-first controls demos • Desktop controls demos • SO
DHTMLX - JavaScript library for building rich Web and Mobile apps. Looks most like ExtJS - check the demos. Has been developed since 2005 but still looks modern. All components except TreeGrid are available under GPLv2 but advanced features for many components are only available in the commercial PRO edition - see for example the tree. Claims to be used by many Fortune 500 companies.
Minimal presence on GitHub (the main library code is missing) and StackOverflow but active forum. The documentation is not available on GitHub, which makes it difficult to improve by the community.
Polymer, a Web Components polyfill, plus Polymer Paper, Google's implementation of the Material design. Aimed at web and mobile apps. Doesn't have advanced widgets like trees or even grids but the controls it provides are mobile-first and responsive. Used by many big players, e.g. IBM or USA Today.
Ant Design claims it is "a design language for background applications", influenced by "nature" and helping designers "create low-entropy atmosphere for developer team". That's probably a poor translation from Chinese for "UI components for enterprise web applications". It's a React UI library written in TypeScript, with many components, from simple (buttons, cards) to advanced (autocomplete, calendar, tag input, table).
The project was born in China, is popular with Chinese companies, and parts of the documentation are available only in Chinese. Quite popular on GitHub, yet it makes the mistake of splitting the community into Chinese and English chat rooms. The design looks Material-ish, but fonts are small and the information looks lost in a see of whitespace.
PrimeUI - collection of 45+ rich widgets based on jQuery UI. Apache 2.0 license. Small GitHub community. 35 premium themes available.
qooxdoo - "a universal JavaScript framework with a coherent set of individual components", developed and funded by German hosting provider 1&1 (see the contributors, one of the world's largest hosting companies. GPL/EPL (a business-friendly license).
Mobile themes look modern but desktop themes look old (gradients).
Wikipedia • GitHub • Web/Mobile/Desktop demos • Widgets Demo browser • Widget browser • SO • Playground • Community
jQuery UI - easy to pick up; looks a bit dated; lacks advanced widgets. Of course, you can combine it with independent widgets for particular needs, e.g. trees or other UI components, but the same can be said for any other framework.
angular + Angular UI. While Angular is backed by Google, it's being radically revamped in the upcoming 2.0 version, and "users will need to get to grips with a new kind of architecture. It's also been confirmed that there will be no migration path from Angular 1.X to 2.0". Moreover, the consensus seems to be that Angular 2 won't really be ready for use until a year or two from now. Angular UI has relatively few widgets (no trees, for example).
DojoToolkit and their powerful Dijit set of widgets. Completely open-sourced and actively developed on GitHub, but development is now (Nov 2018) focused on the new dojo.io framework, which has very few basic widgets. BSD/AFL license. Development started in 2004 and the Dojo Foundation is being sponsored by IBM, Google, and others - see Wikipedia. 7500 questions here on SO.
Themes look desktop-oriented and dated - see the theme tester in dijit. The official theme previewer is broken and only shows "Claro". A Bootstrap theme exists, which looks a lot like Bootstrap, but doesn't use Bootstrap classes. In Jan 2015, I started a thread on building a Material Design theme for Dojo, which got quite popular within the first hours. However, there are questions regarding building that theme for the current Dojo 1.10 vs. the next Dojo 2.0. The response to that thread shows an active and wide community, covering many time zones.
Unfortunately, Dojo has fallen out of popularity and fewer companies appear to use it, despite having (had?) a strong foothold in the enterprise world. In 2009-2012, its learning curve was steep and the documentation needed improvements; while the documentation has substantially improved, it's unclear how easy it is to pick up Dojo nowadays.
With a Material Design theme, Dojo (2.0?) might be the killer UI components framework.
Enyo - front-end library aimed at mobile and TV apps (e.g. large touch-friendly controls). Developed by LG Electronix and Apache-licensed on GitHub.
The radical Cappuccino - Objective-J (a superset of JavaScript) instead of HTML+CSS+DOM
Mochaui, MooTools UI Library User Interface Library. <300 GitHub stars.
CrossUI - cross-browser JS framework to develop and package the exactly same code and UI into Web Apps, Native Desktop Apps (Windows, OS X, Linux) and Mobile Apps (iOS, Android, Windows Phone, BlackBerry). Open sourced LGPL3. Featured RAD tool (form builder etc.). The UI looks desktop-, not web-oriented. Actively developed, small community. No presence on GitHub.
ZinoUI - simple widgets. The DataTable, for instance, doesn't even support sorting.
Wijmo - good-looking commercial widgets, with old (jQuery UI) widgets open-sourced on GitHub (their development stopped in 2013). Developed by ComponentOne, a division of GrapeCity. See Wijmo Complete vs. Open.
CxJS - commercial JS framework based on React, Babel and webpack offering form elements, form validation, advanced grid control, navigational elements, tooltips, overlays, charts, routing, layout support, themes, culture dependent formatting and more.
Widgets - Demo Apps - Examples - GitHub
SproutCore - developed by Apple for web applications with native performance, handling large data sets on the client. Powers iCloud.com. Not intended for widgets.
Wakanda: aimed at business/enterprise web apps - see What is Wakanda?. Architecture:
Wakanda Application Framework (datasource layer + browser-based interface widgets) that helps with browser and device compatibility across desktop and mobile
Wakanda is highly integrated, includes a ton of features out of the box, but has a very small GitHub community and SO presence.
Servoy - "a cross platform frontend development and deployment environment for SQL databases". Boasts a "full WYSIWIG (What You See Is What You Get) UI designer for HTML5 with built-in data-binding to back-end services", responsive design, support for HTML6 Web Components, Websockets and mobile platforms. Written in Java and generates JavaScript code using various JavaBeans.
SmartClient/SmartGWT - mobile and cross-browser HTML5 UI components combined with a Java server. Aimed at building powerful business apps - see demos.
Vaadin - full-stack Java/GWT + JavaScript/HTML3 web app framework
Backbase - portal software
Shiny - front-end library on top R, with visualization, layout and control widgets
ZKOSS: Java+jQuery+Bootstrap framework for building enterprise web and mobile apps.
These libraries don't implement complex widgets such as tables with sorting/filtering, autocompletes, or trees.
Foundation for Apps - responsive front-end framework on top of AngularJS; more of a grid/layout/navigation library
UI Kit - similar to Bootstrap, with fewer widgets, but with official off-canvas.
Using the canvas elements allows for complete control over the UI, and great cross-browser compatibility, but comes at the cost of missing native browser functionality, e.g. page search via Ctrl/Cmd+F.
Found the easiest way to do this. Works even with div!
<div onclick="downloadFiles()">
<!--do not put any text in <a>, it should be invisible-->
<a href="path/file1" id="a1" download></a>
<a href="path/file2" id="a2" download></a>
<a href="path/file3" id="a3" download></a>
<script>
function downloadFiles() {
document.getElementById("a1").click();
document.getElementById("a2").click();
document.getElementById("a3").click();
}
</script>
Download
</div>
That's all, hope it helps.
If I understand the situation correctly, you are just passing json data through the http body, instead of application/x-www-form-urlencoded
data.
You can fetch this data with this snippet:
$request_body = file_get_contents('php://input');
If you are passing json, then you can do:
$data = json_decode($request_body);
$data
then contains the json data is php array.
php://input
is a so called wrapper.
php://input is a read-only stream that allows you to read raw data from the request body. In the case of POST requests, it is preferable to use php://input instead of $HTTP_RAW_POST_DATA as it does not depend on special php.ini directives. Moreover, for those cases where $HTTP_RAW_POST_DATA is not populated by default, it is a potentially less memory intensive alternative to activating always_populate_raw_post_data. php://input is not available with enctype="multipart/form-data".
You should use a datastore and proxy in ExtJs. There are plenty of examples of this, and the JSON reader automatically parses the JSON message into the model you specified.
There is no need to use basic Javascript when using ExtJs, everything is different, you should use the ExtJs ways to get everything right. Read there documentation carefully, it's good.
By the way, these examples also hold for Sencha Touch (especially v2), which is based on the same core functions as ExtJs.
Like this: HttpRequest.UrlReferrer Property
Uri myReferrer = Request.UrlReferrer;
string actual = myReferrer.ToString();
For some applications may be better:
string.Join(",", arr1) == string.Join(",", arr2)
$x
is always a scalar. The hint is the sigil $
: any variable (or dereferencing of some other type) starting with $
is a scalar. (See perldoc perldata for more about data types.)
A reference is just a particular type of scalar.
The built-in function ref
will tell you what kind of reference it is. On the other hand, if you have a blessed reference, ref
will only tell you the package name the reference was blessed into, not the actual core type of the data (blessed references can be hashrefs, arrayrefs or other things). You can use Scalar::Util 's reftype
will tell you what type of reference it is:
use Scalar::Util qw(reftype);
my $x = bless {}, 'My::Foo';
my $y = { };
print "type of x: " . ref($x) . "\n";
print "type of y: " . ref($y) . "\n";
print "base type of x: " . reftype($x) . "\n";
print "base type of y: " . reftype($y) . "\n";
...produces the output:
type of x: My::Foo
type of y: HASH
base type of x: HASH
base type of y: HASH
For more information about the other types of references (e.g. coderef, arrayref etc), see this question: How can I get Perl's ref() function to return REF, IO, and LVALUE? and perldoc perlref.
Note: You should not use ref
to implement code branches with a blessed object (e.g. $ref($a) eq "My::Foo" ? say "is a Foo object" : say "foo not defined";
) -- if you need to make any decisions based on the type of a variable, use isa
(i.e if ($a->isa("My::Foo") { ...
or if ($a->can("foo") { ...
). Also see polymorphism.
Fixing must override a super class method error is not difficult, You just need to change Java source version to 1.6 because from Java 1.6 @Override annotation can be used along with interface method. In order to change source version to 1.6 follow below steps :
The for
loop runs immediately to completion while all your asynchronous operations are started. When they complete some time in the future and call their callbacks, the value of your loop index variable i
will be at its last value for all the callbacks.
This is because the for
loop does not wait for an asynchronous operation to complete before continuing on to the next iteration of the loop and because the async callbacks are called some time in the future. Thus, the loop completes its iterations and THEN the callbacks get called when those async operations finish. As such, the loop index is "done" and sitting at its final value for all the callbacks.
To work around this, you have to uniquely save the loop index separately for each callback. In Javascript, the way to do that is to capture it in a function closure. That can either be done be creating an inline function closure specifically for this purpose (first example shown below) or you can create an external function that you pass the index to and let it maintain the index uniquely for you (second example shown below).
As of 2016, if you have a fully up-to-spec ES6 implementation of Javascript, you can also use let
to define the for
loop variable and it will be uniquely defined for each iteration of the for
loop (third implementation below). But, note this is a late implementation feature in ES6 implementations so you have to make sure your execution environment supports that option.
Use .forEach() to iterate since it creates its own function closure
someArray.forEach(function(item, i) {
asynchronousProcess(function(item) {
console.log(i);
});
});
Create Your Own Function Closure Using an IIFE
var j = 10;
for (var i = 0; i < j; i++) {
(function(cntr) {
// here the value of i was passed into as the argument cntr
// and will be captured in this function closure so each
// iteration of the loop can have it's own value
asynchronousProcess(function() {
console.log(cntr);
});
})(i);
}
Create or Modify External Function and Pass it the Variable
If you can modify the asynchronousProcess()
function, then you could just pass the value in there and have the asynchronousProcess()
function the cntr back to the callback like this:
var j = 10;
for (var i = 0; i < j; i++) {
asynchronousProcess(i, function(cntr) {
console.log(cntr);
});
}
Use ES6 let
If you have a Javascript execution environment that fully supports ES6, you can use let
in your for
loop like this:
const j = 10;
for (let i = 0; i < j; i++) {
asynchronousProcess(function() {
console.log(i);
});
}
let
declared in a for
loop declaration like this will create a unique value of i
for each invocation of the loop (which is what you want).
Serializing with promises and async/await
If your async function returns a promise, and you want to serialize your async operations to run one after another instead of in parallel and you're running in a modern environment that supports async
and await
, then you have more options.
async function someFunction() {
const j = 10;
for (let i = 0; i < j; i++) {
// wait for the promise to resolve before advancing the for loop
await asynchronousProcess();
console.log(i);
}
}
This will make sure that only one call to asynchronousProcess()
is in flight at a time and the for
loop won't even advance until each one is done. This is different than the previous schemes that all ran your asynchronous operations in parallel so it depends entirely upon which design you want. Note: await
works with a promise so your function has to return a promise that is resolved/rejected when the asynchronous operation is complete. Also, note that in order to use await
, the containing function must be declared async
.
Run asynchronous operations in parallel and use Promise.all()
to collect results in order
function someFunction() {
let promises = [];
for (let i = 0; i < 10; i++) {
promises.push(asynchonousProcessThatReturnsPromise());
}
return Promise.all(promises);
}
someFunction().then(results => {
// array of results in order here
console.log(results);
}).catch(err => {
console.log(err);
});
This reply may be late but it may help users having similar problem. The opencv-contrib (available at https://github.com/opencv/opencv_contrib/releases) contains extra modules but the build procedure has to be done from core opencv (available at from https://github.com/opencv/opencv/releases) modules.
Follow below steps (assuming you are building it using CMake GUI)
Download openCV (from https://github.com/opencv/opencv/releases) and unzip it somewhere on your computer. Create build folder inside it
Download exra modules from OpenCV. (from https://github.com/opencv/opencv_contrib/releases). Ensure you download the same version.
Unzip the folder.
Open CMake
Click Browse Source and navigate to your openCV folder.
Click Browse Build and navigate to your build Folder.
Click the configure button. You will be asked how you would like to generate the files. Choose Unix-Makefile from the drop down menu and Click OK. CMake will perform some tests and return a set of red boxes appear in the CMake Window.
Search for "OPENCV_EXTRA_MODULES_PATH" and provide the path to modules folder (e.g. /Users/purushottam_d/Programs/OpenCV3_4_5_contrib/modules)
Click Configure again, then Click Generate.
Go to build folder
# cd build
# make
# sudo make install
You are ready to do with php zip lib, and can use zend zip lib too,
<?PHP
// create object
$zip = new ZipArchive();
// open archive
if ($zip->open('app-0.09.zip') !== TRUE) {
die ("Could not open archive");
}
// get number of files in archive
$numFiles = $zip->numFiles;
// iterate over file list
// print details of each file
for ($x=0; $x<$numFiles; $x++) {
$file = $zip->statIndex($x);
printf("%s (%d bytes)", $file['name'], $file['size']);
print "
";
}
// close archive
$zip->close();
?>
http://devzone.zend.com/985/dynamically-creating-compressed-zip-archives-with-php/
and there is also php pear lib for this http://www.php.net/manual/en/class.ziparchive.php
If you are returning ActionResult in .net core web api, or IHttpAction result then you can just wrap up your model in an Ok() method which will match the case on your front end and serialise it for you. No need to use JsonConvert. :)
Some links i found:
I know its already answered, still i am just trying to make it simple. So angular.copy(data) you can use in case where you want to modify/change your received object by keeping its original values unmodified/unchanged.
For example: suppose i have made api call and got my originalObj, now i want to change the values of api originalObj for some case but i want the original values too so what i can do is, i can make a copy of my api originalObj in duplicateObj and modify duplicateObj this way my originalObj values will not change. In simple words duplicateObj modification will not reflect in originalObj unlike how js obj behave.
$scope.originalObj={
fname:'sudarshan',
country:'India'
}
$scope.duplicateObj=angular.copy($scope.originalObj);
console.log('----------originalObj--------------');
console.log($scope.originalObj);
console.log('-----------duplicateObj---------------');
console.log($scope.duplicateObj);
$scope.duplicateObj.fname='SUD';
$scope.duplicateObj.country='USA';
console.log('---------After update-------')
console.log('----------originalObj--------------');
console.log($scope.originalObj);
console.log('-----------duplicateObj---------------');
console.log($scope.duplicateObj);
Result is like....
----------originalObj--------------
manageProfileController.js:1183 {fname: "sudarshan", country: "India"}
manageProfileController.js:1184 -----------duplicateObj---------------
manageProfileController.js:1185 {fname: "sudarshan", country: "India"}
manageProfileController.js:1189 ---------After update-------
manageProfileController.js:1190 ----------originalObj--------------
manageProfileController.js:1191 {fname: "sudarshan", country: "India"}
manageProfileController.js:1192 -----------duplicateObj---------------
manageProfileController.js:1193 {fname: "SUD", country: "USA"}
If you want a batch file to run a jar file, make a blank file called runjava.bat with the contents:
java -jar "C:\myjarfile.jar"
To reduce the required packages to install you just need
apt-get install -y \
libfreetype6-dev \
libxft-dev && \
pip install matplotlib
and you will get the following packages locally installed
Collecting matplotlib
Downloading matplotlib-2.2.0-cp35-cp35m-manylinux1_x86_64.whl (12.5MB)
Collecting pytz (from matplotlib)
Downloading pytz-2018.3-py2.py3-none-any.whl (509kB)
Collecting python-dateutil>=2.1 (from matplotlib)
Downloading python_dateutil-2.6.1-py2.py3-none-any.whl (194kB)
Collecting pyparsing!=2.0.4,!=2.1.2,!=2.1.6,>=2.0.1 (from matplotlib)
Downloading pyparsing-2.2.0-py2.py3-none-any.whl (56kB)
Requirement already satisfied: six>=1.10 in /opt/conda/envs/pytorch-py35/lib/python3.5/site-packages (from matplotlib)
Collecting cycler>=0.10 (from matplotlib)
Downloading cycler-0.10.0-py2.py3-none-any.whl
Collecting kiwisolver>=1.0.1 (from matplotlib)
Downloading kiwisolver-1.0.1-cp35-cp35m-manylinux1_x86_64.whl (949kB)
Requirement already satisfied: numpy>=1.7.1 in /opt/conda/envs/pytorch-py35/lib/python3.5/site-packages (from matplotlib)
Requirement already satisfied: setuptools in /opt/conda/envs/pytorch-py35/lib/python3.5/site-packages/setuptools-27.2.0-py3.5.egg (from kiwisolver>=1.0.1->matplotlib)
Installing collected packages: pytz, python-dateutil, pyparsing, cycler, kiwisolver, matplotlib
Successfully installed cycler-0.10.0 kiwisolver-1.0.1 matplotlib-2.2.0 pyparsing-2.2.0 python-dateutil-2.6.1 pytz-2018.3
SELECT (CASE WHEN ISSUE_DIVISION = ISSUE_DIVISION_2 THEN 1 ELSE 0 END) AS ISSUES
-- <add any columns to outer select from inner query>
FROM
( -- your query here --
select 'CARAT Issue Open' issue_comment, ...., ...,
substr(gcrs.stream_name,1,case when instr(gcrs.stream_name,' (')=0 then 100 else instr(gcrs.stream_name,' (')-1 end) ISSUE_DIVISION,
case when gcrs.STREAM_NAME like 'NON-GT%' THEN 'NON-GT' ELSE gcrs.STREAM_NAME END as ISSUE_DIVISION_2
from ....
where UPPER(ISSUE_STATUS) like '%OPEN%'
)
WHERE... -- optional --
You can use LINQ:
String.Concat(str.OrderBy(c => c))
If you want to remove duplicates, add .Distinct()
.
Get data from the URL and then call json.loads
e.g.
Python3 example:
import urllib.request, json
with urllib.request.urlopen("http://maps.googleapis.com/maps/api/geocode/json?address=google") as url:
data = json.loads(url.read().decode())
print(data)
Python2 example:
import urllib, json
url = "http://maps.googleapis.com/maps/api/geocode/json?address=google"
response = urllib.urlopen(url)
data = json.loads(response.read())
print data
The output would result in something like this:
{
"results" : [
{
"address_components" : [
{
"long_name" : "Charleston and Huff",
"short_name" : "Charleston and Huff",
"types" : [ "establishment", "point_of_interest" ]
},
{
"long_name" : "Mountain View",
"short_name" : "Mountain View",
"types" : [ "locality", "political" ]
},
{
...
The best approach for this sort of thing is probably git rebase
. It allows you to pull changes from master into your development branch, but leave all of your development work "on top of" (later in the commit log) the stuff from master. When your new work is complete, the merge back to master is then very straightforward.
This code is for the headset profiles, probably it will work for other profiles too. First you need to provide profile listener (Kotlin code):
private val mProfileListener = object : BluetoothProfile.ServiceListener {
override fun onServiceConnected(profile: Int, proxy: BluetoothProfile) {
if (profile == BluetoothProfile.HEADSET)
mBluetoothHeadset = proxy as BluetoothHeadset
}
override fun onServiceDisconnected(profile: Int) {
if (profile == BluetoothProfile.HEADSET) {
mBluetoothHeadset = null
}
}
}
Then while checking bluetooth:
mBluetoothAdapter.getProfileProxy(context, mProfileListener, BluetoothProfile.HEADSET)
if (!mBluetoothAdapter.isEnabled) {
return Intent(BluetoothAdapter.ACTION_REQUEST_ENABLE)
}
It takes a bit of time until onSeviceConnected is called. After that you may get the list of the connected headset devices from:
mBluetoothHeadset!!.connectedDevices
My solution: remove some init options (ex. show), because constructor doesnt yield if something is not working (ex slide effect). My function without dynamic html insertion:
function ySearch(){ console.log('ysearch');
$( "#aaa" ).dialog({autoOpen: true,closeOnEscape: true, dialogClass: "ysearch-dialog",modal: false,height: 510, width:860
});
$('#aaa').dialog("open");
console.log($('#aaa').dialog("isOpen"));
return false;
}
Use queue.rear+1
to get the length of the queue
This is impossible without using git fetch
or git pull
. How can you know whether or not the repository is "up-to-date" without going to the remote repository to see what "up-to-date" even means?
The Maven Dependency Plugin will help, especially the dependency:analyze
goal:
dependency:analyze
analyzes the dependencies of this project and determines which are: used and declared; used and undeclared; unused and declared.
Another thing that might help to do some cleanup is the Dependency Convergence report from the Maven Project Info Reports Plugin.
window.open($('#myanchor').attr('href'));
$('#myanchor')[0].click();
.ToList returns an empty list. (same as new List() );
You have put double slash \\ for the entire absolute path to achieve this Example:- D:\\images\\Lighthouse.jpg
Steps - use sendkeys for the button having browse option(The button which will open your window box to select files) - Now click on the button which is going to upload you file
driver.findElement(By.xpath("//input[@id='files']")).sendKeys("D:\\images\\Lighthouse.jpg");
Thread.sleep(5000);
driver.findElement(By.xpath("//button[@id='Upload']")).click();
I found this function on a blog
ggplotRegression <- function (fit) {
`require(ggplot2)
ggplot(fit$model, aes_string(x = names(fit$model)[2], y = names(fit$model)[1])) +
geom_point() +
stat_smooth(method = "lm", col = "red") +
labs(title = paste("Adj R2 = ",signif(summary(fit)$adj.r.squared, 5),
"Intercept =",signif(fit$coef[[1]],5 ),
" Slope =",signif(fit$coef[[2]], 5),
" P =",signif(summary(fit)$coef[2,4], 5)))
}`
once you loaded the function you could simply
ggplotRegression(fit)
you can also go for ggplotregression( y ~ x + z + Q, data)
Hope this helps.
I arrived to this question looking for the same but for Chromium (actually I'm using https://ungoogled-software.github.io). So in case anyone else is looking for the same:
Handling of extension MIME type requests
Always prompt for install
Use the STR
function:
SELECT STR(field_name) FROM table_name
float_expression
Is an expression of approximate numeric (float) data type with a decimal point.
length
Is the total length. This includes decimal point, sign, digits, and spaces. The default is 10.
decimal
Is the number of places to the right of the decimal point. decimal must be less than or equal to 16. If decimal is more than 16 then the result is truncated to sixteen places to the right of the decimal point.
source: https://msdn.microsoft.com/en-us/library/ms189527.aspx
<html>
<head>
<script type="text/javascript">
$(document).ready(function(){
$("#content").attr("src","http://vnexpress.net");
})
</script>
</head>
<body>
<iframe id="content"></div>
</body>
</html>
Use: $("<p>Test</p>").prependTo(".inner");
Check out the .prepend documentation on jquery.com
$id = 101;
$sql = 'SELECT * FROM ur_tbl t WHERE t.email_id = '. $id;
$email = Yii::app()->db->createCommand($sql)->queryAll();
var_dump($email);
I changed the target=android-26
to target=android-23
project.properties
this works great for me.
I just posted a slight variation on some of the examples above on another thread (Finding perfect squares) and thought I'd include a slight variation of what I posted there here (using nsqrt as a temporary variable), in case it's of interest / use:
import math
def is_square(n):
if not (isinstance(n, int) and (n >= 0)):
return False
else:
nsqrt = math.sqrt(n)
return nsqrt == math.trunc(nsqrt)
It is incorrect for a large non-square such as 152415789666209426002111556165263283035677490.
you can still use
String Item = getIntent().getExtras().getString("name");
in the fragment
, you just need call getActivity()
first:
String Item = getActivity().getIntent().getExtras().getString("name");
This saves you having to write some code.
Yes. You need to prefix the table name with "#" (hash) to create temporary tables.
If you do NOT need the table later, go ahead & create it. Temporary Tables are very much like normal tables. However, it gets created in tempdb. Also, it is only accessible via the current session i.e. For EG: if another user tries to access the temp table created by you, he'll not be able to do so.
"##" (double-hash creates "Global" temp table that can be accessed by other sessions as well.
Refer the below link for the Basics of Temporary Tables: http://www.codeproject.com/Articles/42553/Quick-Overview-Temporary-Tables-in-SQL-Server-2005
If the content of your table is less than 5000 rows & does NOT contain data types such as nvarchar(MAX), varbinary(MAX), consider using Table Variables.
They are the fastest as they are just like any other variables which are stored in the RAM. They are stored in tempdb as well, not in RAM.
DECLARE @ItemBack1 TABLE
(
column1 int,
column2 int,
someInt int,
someVarChar nvarchar(50)
);
INSERT INTO @ItemBack1
SELECT column1,
column2,
someInt,
someVarChar
FROM table2
WHERE table2.ID = 7;
More Info on Table Variables: http://odetocode.com/articles/365.aspx
Maybe a bit late, but hope it hellps:
@echo off
if %ERRORLEVEL% == 0 (
msg * 1st line WORKS FINE rem You can relpace msg * with any othe operation...
goto Continue1
)
:Continue1
If exist "C:\Python31" (
msg * 2nd line WORKS FINE rem You can relpace msg * with any othe operation...
goto Continue2
)
:Continue2
If exist "C:\Python31\Lib\site-packages\PyQt4" (
msg * 3th line WORKS FINE rem You can relpace msg * with any othe operation...
goto Continue3
)
:Continue3
msg * 4th line WORKS FINE rem You can relpace msg * with any othe operation...
goto Continue4
)
:Continue4
msg * "Tutto a posto" rem You can relpace msg * with any othe operation...
pause
LayerDrawable progressDrawable = (LayerDrawable) mSeekBar.getProgressDrawable();
// progress bar line *progress* color
Drawable processDrawable = progressDrawable.findDrawableByLayerId(android.R.id.progress);
// progress bar line *background* color
Drawable backgroundDrawable = progressDrawable.findDrawableByLayerId(android.R.id.background);
// progress bar line *secondaryProgress* color
Drawable secondaryProgressDrawable = progressDrawable.findDrawableByLayerId(android.R.id.secondaryProgress);
processDrawable.setColorFilter(Color.RED, PorterDuff.Mode.SRC_IN);
// progress bar line all color
mSeekBar.getProgressDrawable().setColorFilter(Color.BLUE, PorterDuff.Mode.SRC_IN);
// progress circle color
mSeekBar.getThumb().setColorFilter(Color.GREEN, PorterDuff.Mode.SRC_IN);
Q1) Here are couple things to read or google more :
Main differences between SOAP and RESTful web services in java http://www.ajaxonomy.com/2008/xml/web-services-part-1-soap-vs-rest
It's up to you what do you want to learn first. I'd recommend you take a look at the CXF framework. You can build both rest/soap services.
Q2) Here are couple of good tutorials for soap (I had them bookmarked) :
http://www.benmccann.com/blog/web-services-tutorial-with-apache-cxf/
http://www.mastertheboss.com/web-interfaces/337-apache-cxf-interceptors.html
Best way to learn is not just reading tutorials. But you would first go trough tutorials to get a basic idea so you can see that you're able to produce something(or not) and that would get you motivated.
SO is great way to learn particular technology (or more), people ask lot of wierd questions, and there are ever weirder answers. But overall you'll learn about ways to solve issues on other way. Maybe you didn't know of that way, maybe you couldn't thought of it by yourself.
Subscribe to couple of tags that are interesting to you and be persistent, ask good questions and try to give good answers and I guarantee you that you'll learn this as time passes (if you're persistent that is).
Q3) You will have to answer this one yourself. First by deciding what you're going to build, after all you will need to think of some mini project or something and take it from there.
If you decide to use CXF as your framework for building either REST/SOAP services I'd recommend you look up this book Apache CXF Web Service Development
.
It's fantastic, not hard to read and not too big either (win win).
Creating a 350 characters GUID:
dbms_random.STRING ('a', 350) - returning string in mixed case alpha characters
dbms_random.STRING ('x', 350) - returning string in uppercase alpha-numeric characters
When I received this error I believe it was a bug, however you should keep in mind that if you do a separate query with a SELECT statement and the same WHERE clause, then you can grab the primary ID's from that SELECT: SELECT CONCAT(primary_id, ',')
) statement and insert them into the failed UPDATE query with conditions -> "WHERE [primary_id] IN ([list of comma-separated primary ID's from the SELECT statement)" which allows you to alleviate any issues being caused by the original (failed) query's WHERE clause.
For me, personally, when I was using quotes for the values in the "WHERE ____ IN ([values here])", only 10 of the 300 expected entries were being affected which, in my opinion, seems like a bug.
I had the same problem. Using 'sudo python3 -m pip install selenium' may work.
Remember that your img is not really a DOM element but a javascript expression.
This is a JSX attribute expression. Put curly braces around the src string expression and it will work. See http://facebook.github.io/react/docs/jsx-in-depth.html#attribute-expressions
In javascript, the class attribute is reference using className. See the note in this section: http://facebook.github.io/react/docs/jsx-in-depth.html#react-composite-components
/** @jsx React.DOM */
var Hello = React.createClass({
render: function() {
return <div><img src={'http://placehold.it/400x20&text=slide1'} alt="boohoo" className="img-responsive"/><span>Hello {this.props.name}</span></div>;
}
});
React.renderComponent(<Hello name="World" />, document.body);
<link rel="stylesheet" type="text/css" href="https://maxcdn.bootstrapcdn.com/font-awesome/4.7.0/css/font-awesome.min.css">
_x000D_
.tree-view-com ul li {_x000D_
position: relative;_x000D_
list-style: none;_x000D_
}_x000D_
.tree-view-com .tree-view-child > li{_x000D_
padding-bottom: 30px;_x000D_
}_x000D_
.tree-view-com .tree-view-child > li:last-of-type{_x000D_
padding-bottom: 0px;_x000D_
}_x000D_
_x000D_
.tree-view-com ul li a .c-icon {_x000D_
margin-right: 10px;_x000D_
position: relative;_x000D_
top: 2px;_x000D_
}_x000D_
.tree-view-com ul > li > ul {_x000D_
margin-top: 20px;_x000D_
position: relative;_x000D_
}_x000D_
.tree-view-com > ul > li:before {_x000D_
content: "";_x000D_
border-left: 1px dashed #ccc;_x000D_
position: absolute;_x000D_
height: calc(100% - 30px - 5px);_x000D_
z-index: 1;_x000D_
left: 8px;_x000D_
top: 30px;_x000D_
}_x000D_
.tree-view-com > ul > li > ul > li:before {_x000D_
content: "";_x000D_
border-top: 1px dashed #ccc;_x000D_
position: absolute;_x000D_
width: 25px;_x000D_
left: -32px;_x000D_
top: 12px;_x000D_
}
_x000D_
<div class="tree-view-com">_x000D_
<ul class="tree-view-parent">_x000D_
<li>_x000D_
<a href=""><i class="fa fa-folder c-icon c-icon-list" aria-hidden="true"></i> folder</a>_x000D_
<ul class="tree-view-child">_x000D_
<li>_x000D_
<a href="" class="document-title">_x000D_
<i class="fa fa-folder c-icon" aria-hidden="true"></i>_x000D_
sub folder 1_x000D_
</a>_x000D_
</li>_x000D_
<li>_x000D_
<a href="" class="document-title">_x000D_
<i class="fa fa-folder c-icon" aria-hidden="true"></i>_x000D_
sub folder 2_x000D_
</a>_x000D_
</li>_x000D_
<li>_x000D_
<a href="" class="document-title">_x000D_
<i class="fa fa-folder c-icon" aria-hidden="true"></i>_x000D_
sub folder 3_x000D_
</a>_x000D_
</li>_x000D_
</ul>_x000D_
</li>_x000D_
</ul>_x000D_
</div>
_x000D_
*X*YZ* = string contains X and contains YZ
@".*X.*YZ"
X*YZ*P = string starts with X, contains YZ and ends with P.
@"^X.*YZ.*P$"
There is NO NEED to add to the source control any of the following:
.idea/
.gradle/
*.iml
build/
local.properties
So you can configure hgignore or gitignore accordingly.
The first time a developer clones the source control can go:
That's all
PS: Android Studio will then, through maven, get the gradle plugin assuming that your build.gradle looks similar to this:
// Top-level build file where you can add configuration options common to all sub-projects/modules.
buildscript {
repositories {
mavenCentral()
}
dependencies {
classpath 'com.android.tools.build:gradle:0.12.2'
}
}
allprojects {
repositories {
mavenCentral()
}
}
Android studio will generate the content of .idea folder (including the workspace.xml, which shouldn't be in source control because it is generated) and the .gradle folder.
This approach is Eclipse-friendly in the way that the source control does not really know anything about Android Studio. Android Studio just needs the build.gradle to import a project and generate the rest.
In cell A1, enter the time.
In cell B2, enter =A1+1/24
I have another solution for your question .
In the first when use date
the output is like this :
Thu 28 Jan 2021 22:29:40 IST
Then if you want only to show current time in hours and minutes you can use this command :
date | cut -d " " -f5 | cut -d ":" -f1-2
Then the output :
22:29
Option(getObject) foreach (QueueManager add)
For unlimited memory limit set -1
in memory_limit
variable:
ini_set('memory_limit', '-1');
You cannot use VBA (Interior.ColorIndex
) in a formula which is why you receive the error.
It is not possible to do this without VBA.
Function YellowIt(rng As Range) As Boolean
If rng.Interior.ColorIndex = 6 Then
YellowIt = True
Else
YellowIt = False
End If
End Function
However, I do not recommend this: it is not how user-defined VBA functions (UDFs) are intended to be used. They should reflect the behaviour of Excel functions, which cannot read the colour-formatting of a cell. (This function may not work in a future version of Excel.)
It is far better that you base a formula on the original condition (decision) that makes the cell yellow in the first place. Or, alternatively, run a Sub procedure to fill in the True or False values (although, of course, these values will no longer be linked to the original cell's formatting).
Content types are included in HTTP responses because the same, byte for byte sequence of values in the content could be interpreted in more than one way.(*)
Remember that http can transport more than just HTML (js, css and images are obvious examples), and in some cases, the receiver will not know what type of object it's going to receive.
(*) the obvious one here is XHTML - which is XML. If it's served with a content type of application/xml
, the receiver ought to just treat it as XML. If it's served up as application/xhtml+xml
, then it ought to be treated as XHTML.
@Ali Shakiba your code needs some modification. Error part:
for (int i = 0; i < myArray.length; i++) {
myStatement.setString(i, myArray[i][1]);
myStatement.setString(i, myArray[i][2]);
}
Updated code:
String myArray[][] = {
{"1-1", "1-2"},
{"2-1", "2-2"},
{"3-1", "3-2"}
};
StringBuffer mySql = new StringBuffer("insert into MyTable (col1, col2) values (?, ?)");
for (int i = 0; i < myArray.length - 1; i++) {
mySql.append(", (?, ?)");
}
mysql.append(";"); //also add the terminator at the end of sql statement
myStatement = myConnection.prepareStatement(mySql.toString());
for (int i = 0; i < myArray.length; i++) {
myStatement.setString((2 * i) + 1, myArray[i][1]);
myStatement.setString((2 * i) + 2, myArray[i][2]);
}
myStatement.executeUpdate();
const FPS = 30;
let lastTimestamp = 0;
function update(timestamp) {
requestAnimationFrame(update);
if (timestamp - lastTimestamp < 1000 / FPS) return;
/* <<< PUT YOUR CODE HERE >>> */
lastTimestamp = timestamp;
}
update();
This will give you the working directory of the current file.
File.dirname(__FILE__)
Example:
current_file: "/Users/nemrow/SITM/folder1/folder2/amazon.rb"
result: "/Users/nemrow/SITM/folder1/folder2"
But be VERY careful about letting a user select the file. You don't really want to allow them to get a file called, for example,
../../../../../../../../../../etc/passwd
or other sensitive system files.
(Sorry, it's been a while since I was a linux sysadmin, and I think this is a sensitive file, from what I remember)
How to reproduce the above error in PHP:
php> $yarr = array(3 => 'c', 4 => 'd');
php> echo $yarr[4];
d
php> echo $yarr[1];
PHP Notice: Undefined offset: 1 in
/usr/local/lib/python2.7/dist-packages/phpsh/phpsh.php(578) :
eval()'d code on line 1
What does that error message mean?
It means the php compiler looked for the key 1
and ran the hash against it and didn't find any value associated with it then said Undefined offset: 1
How do I make that error go away?
Ask the array if the key exists before returning its value like this:
php> echo array_key_exists(1, $yarr);
php> echo array_key_exists(4, $yarr);
1
If the array does not contain your key, don't ask for its value. Although this solution makes double-work for your program to "check if it's there" and then "go get it".
Alternative solution that's faster:
If getting a missing key is an exceptional circumstance caused by an error, it's faster to just get the value (as in echo $yarr[1];
), and catch that offset error and handle it like this: https://stackoverflow.com/a/5373824/445131
What you have seems to be a string
incorrectly decoded from another encoding, likely code page 1252, which is US Windows default. Here's how to reverse, assuming no other loss. One loss not immediately apparent is the non-breaking space
(U+00A0) at the end of your string that is not displayed. Of course it would be better to read the data source correctly in the first place, but perhaps the data source was stored incorrectly to begin with.
using System;
using System.Text;
class Program
{
static void Main(string[] args)
{
string junk = "déjÃ\xa0"; // Bad Unicode string
// Turn string back to bytes using the original, incorrect encoding.
byte[] bytes = Encoding.GetEncoding(1252).GetBytes(junk);
// Use the correct encoding this time to convert back to a string.
string good = Encoding.UTF8.GetString(bytes);
Console.WriteLine(good);
}
}
Result:
déjà
The most common application here is closing on clicking the document but not when it came from within that element, for this you want to stop the bubbling, like this:
$(".menuWrapper").click(function(e) {
e.stopPropagation(); //stops click event from reaching document
});
$(document).click(function() {
$(".menuWrapper").hide(); //click came from somewhere else
});
All were doing here is preventing the click from bubbling up (via event.stopPrpagation()
) when it came from within a .menuWrapper
element. If this didn't happen, the click came from somewhere else, and will by default make it's way up to document
, if it gets there, we hide those .menuWrapper
elements.
Very probable that your VISUAL
environment variable is set to something else. Try:
export VISUAL=vi
I made a slight variation of Francis Lewis' nice solution. What his solution doesn't do is set the drop-down selects to blank. (I think when most people want to "clear", they probably want to make all values empty.) This one does it with .find('select').prop("selectedIndex", -1)
.
$.fn.clear = function()
{
$(this).find('input')
.filter(':text, :password, :file').val('')
.end()
.filter(':checkbox, :radio')
.removeAttr('checked')
.end()
.end()
.find('textarea').val('')
.end()
.find('select').prop("selectedIndex", -1)
.find('option:selected').removeAttr('selected')
;
return this;
};
To prevent IndexError: list index out of range
, use this syntax:
mylist = [1, 2, 3, 4]
# With None as default value:
value = mylist and mylist[-1]
# With specified default value (option 1):
value = mylist and mylist[-1] or 'default'
# With specified default value (option 2):
value = mylist[-1] if mylist else 'default'
What do you intend to do with the overlay? If it's static, say, a simple box overlapping some content, just use absolute positioning with CSS. If it's dynamic (I believe this is called a lightbox), you can write some CSS-modifying jQuery code to show/hide the overlay on-demand.
SELECT Id, 'TRUE' AS NewFiled FROM TABEL1
INTERSECT
SELECT Id, 'TRUE' AS NewFiled FROM TABEL2
UNION
SELECT Id, 'FALSE' AS NewFiled FROM TABEL1
EXCEPT
SELECT Id, 'FALSE' AS NewFiled FROM TABEL2;
In certain scenarios utilizing Bash's concatenation ability might be appropriate.
temp='this string is very long '
temp+='so I will separate it onto multiple lines'
echo $temp
this string is very long so I will separate it onto multiple lines
name=[value]...
...In the context where an assignment statement is assigning a value to a shell variable or array index, the += operator can be used to append to or add to the variable's previous value. When += is applied to a variable for which the integer attribute has been set, value is evaluated as an arithmetic expression and added to the variable's current value, which is also evaluated. When += is applied to an array variable using compound assignment (see Arrays below), the variable's value is not unset (as it is when using =), and new values are appended to the array beginning at one greater than the array's maximum index (for indexed arrays) or added as additional key-value pairs in an associative array. When applied to a string-valued variable, value is expanded and appended to the variable's value.
Assuming that both your directories are real Python packages (do have the __init__.py
file inside them), here is a safe solution for inclusion of modules relatively to the location of the script.
I assume that you want to do this, because you need to include a set of modules with your script. I use this in production in several products and works in many special scenarios like: scripts called from another directory or executed with python execute instead of opening a new interpreter.
import os, sys, inspect
# realpath() will make your script run, even if you symlink it :)
cmd_folder = os.path.realpath(os.path.abspath(os.path.split(inspect.getfile( inspect.currentframe() ))[0]))
if cmd_folder not in sys.path:
sys.path.insert(0, cmd_folder)
# Use this if you want to include modules from a subfolder
cmd_subfolder = os.path.realpath(os.path.abspath(os.path.join(os.path.split(inspect.getfile( inspect.currentframe() ))[0],"subfolder")))
if cmd_subfolder not in sys.path:
sys.path.insert(0, cmd_subfolder)
# Info:
# cmd_folder = os.path.dirname(os.path.abspath(__file__)) # DO NOT USE __file__ !!!
# __file__ fails if the script is called in different ways on Windows.
# __file__ fails if someone does os.chdir() before.
# sys.argv[0] also fails, because it doesn't not always contains the path.
As a bonus, this approach does let you force Python to use your module instead of the ones installed on the system.
Warning! I don't really know what is happening when current module is inside an egg
file. It probably fails too.
You are trying to do a logarithm of something that is not positive.
Logarithms figure out the base after being given a number and the power it was raised to. log(0)
means that something raised to the power of 2
is 0
. An exponent can never result in 0
*, which means that log(0)
has no answer, thus throwing the math domain error
*Note: 0^0
can result in 0
, but can also result in 1
at the same time. This problem is heavily argued over.
You must put your mathematical expressions inside $(( )).
One-liner:
for i in {1..600}; do wget http://example.com/search/link$(($i % 5)); done;
Multiple lines:
for i in {1..600}; do
wget http://example.com/search/link$(($i % 5))
done
If you do not know the exact path you may use
git log --all --full-history -- "**/thefile.*"
If you know the path the file was at, you can do this:
git log --all --full-history -- <path-to-file>
This should show a list of commits in all branches which touched that file. Then, you can find the version of the file you want, and display it with...
git show <SHA> -- <path-to-file>
Or restore it into your working copy with:
git checkout <SHA>^ -- <path-to-file>
Note the caret symbol (^
), which gets the checkout prior to the one identified, because at the moment of <SHA>
commit the file is deleted, we need to look at the previous commit to get the deleted file's contents
You are trying to store a Unicode codepoint \u201c
using an encoding ISO-8859-1 / Latin-1
that can't describe that codepoint. Either you might need to alter the database to use utf-8, and store the string data using an appropriate encoding, or you might want to sanitise your inputs prior to storing the content; i.e. using something like Sam Ruby's excellent i18n guide. That talks about the issues that windows-1252
can cause, and suggests how to process it, plus links to sample code!
I don't believe the currently accepted answer is correct. For example, I have the following .htaccess
file in the root of a virtual server (apache 2.4):
<Files "reminder.php">
require all denied
require host localhost
require ip 127.0.0.1
require ip xxx.yyy.zzz.aaa
</Files>
This prevents external access to reminder.php
which is in a subdirectory.
I have a similar .htaccess
file on my Apache 2.2 server with the same effect:
<Files "reminder.php">
Order Deny,Allow
Deny from all
Allow from localhost
Allow from 127.0.0.1
Allow from xxx.yyy.zzz.aaa
</Files>
I don't know for sure but I suspect it's the attempt to define the subdirectory specifically in the .htaccess
file, viz <Files ./inscription/log.txt>
which is causing it to fail. It would be simpler to put the .htaccess
file in the same directory as log.txt
i.e. in the inscription
directory and it will work there.
For Symfony3 In your controller try
$request->server->get('DOCUMENT_ROOT').$request->getBasePath()
If you do not want to use CURL, you could find some examples on stackoverflow, just like this one here: How do I send a POST request with PHP?. I would recommend you watch a few tutorials on how to use GET and POST methods within PHP or just take a look at the php.net manual here: httprequest::send. You can find a lot of tutorials: HTTP POST from PHP, without cURL and so on...
User.destroy
User.destroy(1)
will delete user with id == 1
and :before_destroy
and :after_destroy
callbacks occur. For example if you have associated records
has_many :addresses, :dependent => :destroy
After user is destroyed his addresses will be destroyed too. If you use delete action instead, callbacks will not occur.
User.destroy
, User.delete
User.destroy_all(<conditions>)
or User.delete_all(<conditions>)
Notice: User is a class and user is an instance object
NSString *string = /* Assume this exists. */;
int value = [string intValue];
On windows you can use Drip.exe to find memory leaks or check if your free mem routine works.
It's really simple, just enter a website URL and you will see the memory consumption of the integrated IE renderer. Then hit refresh, if the memory increases, you found a memory leak somewhere on the webpage. But this is also very useful to see if routines for freeing memory work for IE.
As ping
works, but telnet
to port 80
does not, the HTTP port 80
is closed on your machine. I assume that your browser's HTTP connection goes through a proxy (as browsing works, how else would you read stackoverflow?).
You need to add some code to your python program, that handles the proxy, like described here:
You define var scatterSeries = [];
, and then try to parse it as a json string at console.info(JSON.parse(scatterSeries));
which obviously fails. The variable is converted to an empty string, which causes an "unexpected end of input" error when trying to parse it.
I'm pretty sure this isn't the BEST way, but you could set the MinimumSize
and MaximimSize
properties to the same value. That will stop it.
Add it to PS1
using Mac :
PS1='\W@\u >`[ -d .git ] && git branch | grep ^*|cut -d" " -f2`> $ '
Before running the command above :
After running that command :
Dont worry, if it is not GIT repository , it will not display error because of [-d .git]
which checks if .git
folder exists or not.
Try this:
public static boolean isAvailable(Context ctx, Intent intent) {
final PackageManager mgr = ctx.getPackageManager();
List<ResolveInfo> list =
mgr.queryIntentActivities(intent, PackageManager.MATCH_DEFAULT_ONLY);
return list.size() > 0;
}
You can get this exception by just a simple/dumb mistake, by (for example) accidentally calling finish()
after having displayed an AlertDialog
, if you miss a break call statement in a switch statement...
@Override
public void onClick(View v) {
switch (v.getId()) {
case R.id.new_button:
openMyAlertDialog();
break; <-- If you forget this the finish() method below
will be called while the dialog is showing!
case R.id.exit_button:
finish();
break;
}
}
The finish()
method will close the Activity
, but the AlertDialog
is still displaying!
So when you're staring intently at the code, looking for bad threading issues or complex coding and such, don't lose sight of the forest for the trees. Sometimes it can be just something as simple and dumb as a missing break statement. :)
Can you arrange to fork off a separate process, and then run your copy in the background? It's been a while since I did any PHP, but the function pcntl-fork looks promising.
Create a linked server to your document
http://www.excel-sql-server.com/excel-import-to-sql-server-using-linked-servers.htm
Then use ordinary INSERT or SELECT INTO. If you want to get fancy, you can use ADO.NET's SqlBulkCopy, which takes just about any data source that you can get a DataReader from and is pretty quick on insert, although the reading of the data won't be esp fast.
You could also take the time to transform an excel spreadsheet into a text delimited file or other bcp supported format and then use BCP.
first open the docker image for the postgres
docker exec -it <container_name>
then u will get the root --root@868594e88b53:/#
it need the database connection
psql postgresql://<username>:<databasepassword>@postgres:5432/<database>
Look at stat
for checking if the directory exists,
And mkdir
, to create a directory.
#include <sys/types.h>
#include <sys/stat.h>
#include <unistd.h>
struct stat st = {0};
if (stat("/some/directory", &st) == -1) {
mkdir("/some/directory", 0700);
}
You can see the manual of these functions with the man 2 stat
and man 2 mkdir
commands.
maps.google.com has a navigation service which can provide you route information in KML format.
To get kml file we need to form url with start and destination locations:
public static String getUrl(double fromLat, double fromLon,
double toLat, double toLon) {// connect to map web service
StringBuffer urlString = new StringBuffer();
urlString.append("http://maps.google.com/maps?f=d&hl=en");
urlString.append("&saddr=");// from
urlString.append(Double.toString(fromLat));
urlString.append(",");
urlString.append(Double.toString(fromLon));
urlString.append("&daddr=");// to
urlString.append(Double.toString(toLat));
urlString.append(",");
urlString.append(Double.toString(toLon));
urlString.append("&ie=UTF8&0&om=0&output=kml");
return urlString.toString();
}
Next you will need to parse xml (implemented with SAXParser) and fill data structures:
public class Point {
String mName;
String mDescription;
String mIconUrl;
double mLatitude;
double mLongitude;
}
public class Road {
public String mName;
public String mDescription;
public int mColor;
public int mWidth;
public double[][] mRoute = new double[][] {};
public Point[] mPoints = new Point[] {};
}
Network connection is implemented in different ways on Android and Blackberry, so you will have to first form url:
public static String getUrl(double fromLat, double fromLon,
double toLat, double toLon)
then create connection with this url and get InputStream.
Then pass this InputStream and get parsed data structure:
public static Road getRoute(InputStream is)
Full source code RoadProvider.java
class MapPathScreen extends MainScreen {
MapControl map;
Road mRoad = new Road();
public MapPathScreen() {
double fromLat = 49.85, fromLon = 24.016667;
double toLat = 50.45, toLon = 30.523333;
String url = RoadProvider.getUrl(fromLat, fromLon, toLat, toLon);
InputStream is = getConnection(url);
mRoad = RoadProvider.getRoute(is);
map = new MapControl();
add(new LabelField(mRoad.mName));
add(new LabelField(mRoad.mDescription));
add(map);
}
protected void onUiEngineAttached(boolean attached) {
super.onUiEngineAttached(attached);
if (attached) {
map.drawPath(mRoad);
}
}
private InputStream getConnection(String url) {
HttpConnection urlConnection = null;
InputStream is = null;
try {
urlConnection = (HttpConnection) Connector.open(url);
urlConnection.setRequestMethod("GET");
is = urlConnection.openInputStream();
} catch (IOException e) {
e.printStackTrace();
}
return is;
}
}
See full code on J2MEMapRouteBlackBerryEx on Google Code
public class MapRouteActivity extends MapActivity {
LinearLayout linearLayout;
MapView mapView;
private Road mRoad;
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.main);
mapView = (MapView) findViewById(R.id.mapview);
mapView.setBuiltInZoomControls(true);
new Thread() {
@Override
public void run() {
double fromLat = 49.85, fromLon = 24.016667;
double toLat = 50.45, toLon = 30.523333;
String url = RoadProvider
.getUrl(fromLat, fromLon, toLat, toLon);
InputStream is = getConnection(url);
mRoad = RoadProvider.getRoute(is);
mHandler.sendEmptyMessage(0);
}
}.start();
}
Handler mHandler = new Handler() {
public void handleMessage(android.os.Message msg) {
TextView textView = (TextView) findViewById(R.id.description);
textView.setText(mRoad.mName + " " + mRoad.mDescription);
MapOverlay mapOverlay = new MapOverlay(mRoad, mapView);
List<Overlay> listOfOverlays = mapView.getOverlays();
listOfOverlays.clear();
listOfOverlays.add(mapOverlay);
mapView.invalidate();
};
};
private InputStream getConnection(String url) {
InputStream is = null;
try {
URLConnection conn = new URL(url).openConnection();
is = conn.getInputStream();
} catch (MalformedURLException e) {
e.printStackTrace();
} catch (IOException e) {
e.printStackTrace();
}
return is;
}
@Override
protected boolean isRouteDisplayed() {
return false;
}
}
See full code on J2MEMapRouteAndroidEx on Google Code
I think the most intuitive way to do this is by giving the children a "wait" prop
, which hides the component for the duration that was passed down from the parent. By setting the default state to hidden, React will still render the component immediately, but it won't be visible until the state has changed. Then, you can set up componentWillMount
to call a function to show it after the duration that was passed via props.
var Child = React.createClass({
getInitialState : function () {
return({hidden : "hidden"});
},
componentWillMount : function () {
var that = this;
setTimeout(function() {
that.show();
}, that.props.wait);
},
show : function () {
this.setState({hidden : ""});
},
render : function () {
return (
<div className={this.state.hidden}>
<p>Child</p>
</div>
)
}
});
Then, in the Parent component, all you would need to do is pass the duration you want a Child to wait before displaying it.
var Parent = React.createClass({
render : function () {
return (
<div className="parent">
<p>Parent</p>
<div className="child-list">
<Child wait={1000} />
<Child wait={3000} />
<Child wait={5000} />
</div>
</div>
)
}
});
Now there are a lot of cloud providers , providing solutions like MBaaS (Mobile Backend as a Service). Some only give access to cloud database, some will do the user management for you, some let you place code around cloud database and there are facilities of access control, push notifications, analytics, integrated image and file hosting etc.
Here are some providers which have a "free-tier" (may change in future):
Open source solutions:
If you know (or if you can "guess") the path to the .apk
(it seems to be of the format /data/app/com.example.someapp-{1,2,..}.apk
to , then you can just copy it from /data/app
as well. This worked even on my non-rooted, stock Android phone.
Just use a Terminal Emulator app (such as this one) and run:
# step 1: confirm path
ls /data/app/com.example.someapp-1.apk
# if it doesn't show up, try -2, -3. Note that globbing (using *) doesn't work here.
# step 2: copy (make sure you adapt the path to match what you discovered above)
cp /data/app/com.example.someapp-1.apk /mnt/sdcard/
Then you can move it from the SD-card to wherever you want (or attach it to an email etc). The last bit might be technically optional, but it makes your life a lot easier when trying to do something with the .apk
file.
You want reasons? Here's one:
A web form can't be used to send a request to a page that uses a mix of GET and POST. If you set the form's method to GET, all the parameters are in the query string. If you set the form's method to POST, all the parameters are in the request body.
Source: HTML 4.01 standard, section 17.13 Form Submission
Also, can be done using "stringr" library:
> library(stringr)
> chars <- "test"
> value <- "es"
> str_detect(chars, value)
[1] TRUE
### For multiple value case:
> value <- c("es", "l", "est", "a", "test")
> str_detect(chars, value)
[1] TRUE FALSE TRUE FALSE TRUE
I felt the below approach is very easy.
I have declared an interface for callback
public interface AsyncResponse {
void processFinish(Object output);
}
Then created asynchronous Task for responding all type of parallel requests
public class MyAsyncTask extends AsyncTask<Object, Object, Object> {
public AsyncResponse delegate = null;//Call back interface
public MyAsyncTask(AsyncResponse asyncResponse) {
delegate = asyncResponse;//Assigning call back interfacethrough constructor
}
@Override
protected Object doInBackground(Object... params) {
//My Background tasks are written here
return {resutl Object}
}
@Override
protected void onPostExecute(Object result) {
delegate.processFinish(result);
}
}
Then Called the asynchronous task when clicking a button in activity Class.
public class MainActivity extends Activity {
@Override
public void onCreate(Bundle savedInstanceState) {
Button mbtnPress = (Button) findViewById(R.id.btnPress);
mbtnPress.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
MyAsyncTask asyncTask =new MyAsyncTask(new AsyncResponse() {
@Override
public void processFinish(Object output) {
Log.d("Response From Asynchronous task:", (String) output);
mbtnPress.setText((String) output);
}
});
asyncTask.execute(new Object[] { "Youe request to aynchronous task class is giving here.." });
}
});
}
}
Thanks
It might also make sense to add a call to clearNotifications in applicationDidBecomeActive so that in case the application is in the background and comes back it will also clear the notifications.
- (void)applicationDidBecomeActive:(UIApplication *)application
{
[self clearNotifications];
}
You could use an interval to check for it until it loads like this: https://codepen.io/pager/pen/MBgGGM
let checkonloadDoSomething = setInterval(() => {
let onloadDoSomething = document.getElementById("onloadDoSomething");
if (onloadDoSomething) {
onloadDoSomething.innerHTML="Loaded"
clearInterval(checkonloadDoSomething);
} else {`enter code here`
console.log("Waiting for onloadDoSomething to load");
}
}, 100);
Since this is one of the top results in the search, if you're trying to add http to https redirect on AWS beanstalk, the accepted solution will not work. You need following code instead:
RewriteCond %{HTTP:X-Forwarded-Proto} =http
RewriteRule ^.*$ https://%{HTTP:Host}%{REQUEST_URI} [L,R=permanent]
Iframe
<iframe id="fred" style="border:1px solid #666CCC" title="PDF in an i-Frame" src="PDFData.pdf" frameborder="1" scrolling="auto" height="1100" width="850" ></iframe>
Object
<object data="your_url_to_pdf" type="application/pdf">
<embed src="your_url_to_pdf" type="application/pdf" />
</object>
If you enter git commit
but omit to enter a comment using the –m
parameter, then Git will open up the default editor for you to edit your check-in note. By default that is Vim. Now you can do two things:
Alternative 1 – Exit Vim without entering any comment and repeat
A blank or unsaved comment will be counted as an aborted attempt to commit your changes and you can exit Vim by following these steps:
Press Esc to make sure you are not in edit mode (you can press Esc several times if you are uncertain)
Type :q!
enter
(that is, colon, letter q, exclamation mark, enter), this tells Vim to discard any changes and exit)
Git will then respond:
Aborting commit due to empty commit message
and you are once again free to commit using:
git commit –m "your comment here"
Alternative 2 – Use Vim to write a comment
Follow the following steps to use Vim for writing your comments
:wq
enterResponse from https://blogs.msdn.microsoft.com/kristol/2013/07/02/the-git-command-line-101-for-windows-users/
I ran into this problem recently and wrote up a post about the particular case in our code that was causing this problem.
http://cappuccino.org/discuss/2010/03/01/internet-explorer-global-variables-and-stack-overflows/
The quick summary is: recursion that passes through the host global object is limited to a stack depth of 13. In other words, if the reference your function call is using (not necessarily the function itself) was defined with some form window.foo = function, then recursing through foo is limited to a depth of 13.
I had to add "Current" using .NET 4.5:
HttpContext.Current.Server.ScriptTimeout = 300;
Import paths are relative to your $GOPATH
and $GOROOT
environment variables. For example, with the following $GOPATH
:
GOPATH=/home/me/go
Packages located in /home/me/go/src/lib/common
and /home/me/go/src/lib/routers
are imported respectively as:
import (
"lib/common"
"lib/routers"
)
I solved my problem by upgrading my .NetFramework version from 4.5.2 to 4.7.2.
First of all you missed ScriptService attribute to add in webservice.
[ScriptService]
After then try following method to call webservice via JSON.
var webAddr = "http://Domain/VBRService.asmx/callJson"; var httpWebRequest = (HttpWebRequest)WebRequest.Create(webAddr); httpWebRequest.ContentType = "application/json; charset=utf-8"; httpWebRequest.Method = "POST"; using (var streamWriter = new StreamWriter(httpWebRequest.GetRequestStream())) { string json = "{\"x\":\"true\"}"; streamWriter.Write(json); streamWriter.Flush(); } var httpResponse = (HttpWebResponse)httpWebRequest.GetResponse(); using (var streamReader = new StreamReader(httpResponse.GetResponseStream())) { var result = streamReader.ReadToEnd(); return result; }
Once you are quite good in Java SE (lets say you are able to pass SCJP), I'd suggest you get junior Java programmer job and improve yourself on real world problems
I'm using chrome too and facing same problem on my localhost. I did a lot of things like clear using CCleaner and restart OS. But my problem was solved with clearing cookie. In order to clear cookie:
OR
@Adam: I think in your code snippet you should track the start position for m.find() because string replacement may change the offset after the last character matched.
public static void replaceAll(StringBuilder sb, Pattern pattern, String replacement) {
Matcher m = pattern.matcher(sb);
int start = 0;
while (m.find(start)) {
sb.replace(m.start(), m.end(), replacement);
start = m.start() + replacement.length();
}
}
The answer differs depending on what OS is being considered. In general though:
For TCP, no. You can only have one application listening on the same port at one time. Now if you had 2 network cards, you could have one application listen on the first IP and the second one on the second IP using the same port number.
For UDP (Multicasts), multiple applications can subscribe to the same port.
Edit: Since Linux Kernel 3.9 and later, support for multiple applications listening to the same port was added using the SO_REUSEPORT
option. More information is available at this lwn.net article.
With the Return statement from the proc, I needed to assign the temp variable and pass it to another stored procedure. The value was getting assigned fine but when passing it as a parameter, it lost the value. I had to create a temp table and set the variable from the table (SQL 2008)
From this:
declare @anID int
exec @anID = dbo.StoredProc_Fetch @ID, @anotherID, @finalID
exec dbo.ADifferentStoredProc @anID (no value here)
To this:
declare @t table(id int)
declare @anID int
insert into @t exec dbo.StoredProc_Fetch @ID, @anotherID, @finalID
set @anID= (select Top 1 * from @t)
You can use PageMethods.Your C# method Name
in order to access C# methods or VB.NET methods into JavaScript.
Best practices on internal and external temporary files:
If you'd like to cache some data, rather than store it persistently, you should use
getCacheDir()
to open a File that represents the internal directory where your application should save temporary cache files.When the device is low on internal storage space, Android may delete these cache files to recover space. However, you should not rely on the system to clean up these files for you. You should always maintain the cache files yourself and stay within a reasonable limit of space consumed, such as 1MB. When the user uninstalls your application, these files are removed.
To open a File that represents the external storage directory where you should save cache files, call
getExternalCacheDir()
. If the user uninstalls your application, these files will be automatically deleted.Similar to
ContextCompat.getExternalFilesDirs()
, mentioned above, you can also access a cache directory on a secondary external storage (if available) by callingContextCompat.getExternalCacheDirs()
.Tip: To preserve file space and maintain your app's performance, it's important that you carefully manage your cache files and remove those that aren't needed anymore throughout your app's lifecycle.
In v2.0 of the Graph API, calling /me/friends
returns the person's friends who also use the app.
In addition, in v2.0, you must request the user_friends
permission from each user. user_friends
is no longer included by default in every login. Each user must grant the user_friends
permission in order to appear in the response to /me/friends
. See the Facebook upgrade guide for more detailed information, or review the summary below.
The /me/friendlists
endpoint and user_friendlists
permission are not what you're after. This endpoint does not return the users friends - its lets you access the lists a person has made to organize their friends. It does not return the friends in each of these lists. This API and permission is useful to allow you to render a custom privacy selector when giving people the opportunity to publish back to Facebook.
If you want to access a list of non-app-using friends, there are two options:
If you want to let your people tag their friends in stories that they publish to Facebook using your App, you can use the /me/taggable_friends
API. Use of this endpoint requires review by Facebook and should only be used for the case where you're rendering a list of friends in order to let the user tag them in a post.
If your App is a Game AND your Game supports Facebook Canvas, you can use the /me/invitable_friends
endpoint in order to render a custom invite dialog, then pass the tokens returned by this API to the standard Requests Dialog.
In other cases, apps are no longer able to retrieve the full list of a user's friends (only those friends who have specifically authorized your app using the user_friends
permission).
For apps wanting allow people to invite friends to use an app, you can still use the Send Dialog on Web or the new Message Dialog on iOS and Android.
CSS only solution for Webkit
// Only for DEMO_x000D_
$(function() {_x000D_
_x000D_
$('#toggleWidth').on('click', function(e) {_x000D_
_x000D_
$('.multiLineLabel').toggleClass('maxWidth');_x000D_
_x000D_
});_x000D_
_x000D_
})
_x000D_
.multiLineLabel {_x000D_
display: inline-block;_x000D_
box-sizing: border-box;_x000D_
white-space: pre-line;_x000D_
word-wrap: break-word;_x000D_
}_x000D_
_x000D_
.multiLineLabel .textMaxLine {_x000D_
display: -webkit-box;_x000D_
-webkit-box-orient: vertical;_x000D_
-webkit-line-clamp: 2;_x000D_
overflow: hidden;_x000D_
}_x000D_
_x000D_
_x000D_
/* Only for DEMO */_x000D_
_x000D_
.multiLineLabel.maxWidth {_x000D_
width: 100px;_x000D_
}
_x000D_
<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>_x000D_
<div class="multiLineLabel">_x000D_
<span class="textMaxLine">This text is going to wrap automatically in 2 lines in case the width of the element is not sufficiently wide.</span>_x000D_
</div>_x000D_
<br/>_x000D_
<button id="toggleWidth">Toggle Width</button>
_x000D_
What to do if i have to processed even more that 500000 records ?
There are a few ways, to increase the java heap size for your app where a few have suggested already. Your app need to remove the elements from your adddressMap as your app add new element into it and so you won't encounter oom if there are more records coming in. Look for producer-consumer if you are interested.
Use the following query:
SELECT * FROM SAMPLE_TABLE ORDER BY ROWID ASC LIMIT 1
Note: Sqlite's row id references are detailed here.
Use:
:%y+
to yank all lines.
Explanation:
%
to refer the next command to work on all the linesy
to yank those lines+
to copy to the system clipboardNB: In Windows, +
and *
are equivalent see this answer.
jsonweb seems to be the best solution for me. See http://www.jsonweb.info/en/latest/
from jsonweb.encode import to_object, dumper
@to_object()
class DataModel(object):
def __init__(self, id, value):
self.id = id
self.value = value
>>> data = DataModel(5, "foo")
>>> dumper(data)
'{"__type__": "DataModel", "id": 5, "value": "foo"}'
There is bug a iOS 9 beta 4: the separator line appears between UITableViewCell
s even if you set separatorStyle
to UITableViewCellSeparatorStyleNone
from the storyboard. To get around this, you have to set it from code, because as of now there is a bug from storyboard. Hope they will fix it in future beta.
Here's the code to set it:
[self.tableView setSeparatorStyle:UITableViewCellSeparatorStyleNone];
That's simple, if you reference them by index. If you want to hide the first column, you would:
Copy code
$('#thetable tr').find('td:nth-child(1),th:nth-child(1)').toggle();
The reason I first selected all table rows and then both td's and th's that were the n'th child is so that we wouldn't have to select the table and all table rows twice. This improves script execution speed. Keep in mind, nth-child()
is 1
based, not 0
.
You are exceeding the length of int datatype. You can use UNSIGNED attribute to support that value.
SIGNED INT can support till 2147483647 and with UNSIGNED INT allows double than this. After this you still want to save data than use CHAR or VARCHAR with length 10
Android Studio 2.2.3 Linux Mint 18.1
Inside your 'project view' open Gradle Scripts -> build.gradle(Module:app) and put your mouse pointer inside the word dependencies.
Click on the light bulb and click "add library dependency" and for me all the libraries I wanted were listed there.
example libraries that came up for me: compile 'com.android.support:gridlayout-v7:25.1.0' compile 'com.android.support:support-v13:25.1.0'
I am now looking to add android support by default in Gradles default configuration.
We got an error because we have missing vendor folder in our project, The vendor directory contains our Composer dependencies.
Need /vendor
folder because all packages are there and including all the classes Laravel uses, A problem can be solved after following just two steps:
composer update --no-scripts
composer update
composer.json
composer.json
file, it will replace the previous version installed. The composer.lock
file will be updated to reflect these changes.These two commands, we will Recreate the vendor folder in our project and after that our project will be working smoothly.
On most devices, the other answers work. For me, to ensure it worked on every device (in react) I had to wrap it in an anchor tag <a>
and add the following:
:hover
, :focus
, :active
(in that order), as well as role="button"
and tabIndex="0"
.
It might be easier for you to understand using Functionoids which are expressively neater and more powerful to use, see this excellent and highly recommended C++ FAQ lite, in particular, look at section 33.12 onwards, but nonetheless, read it from the start of that section to gain a grasp and understanding of it.
To answer your question:
typedef void (*foobar)() fubarfn;
void Fun(fubarfn& baz){
fubarfn = baz;
baz();
}
Edit:
&
means the reference address*
means the value of what's contained at the reference address, called de-referencingSo using the reference, example below, shows that we are passing in a parameter, and directly modify it.
void FunByRef(int& iPtr){
iPtr = 2;
}
int main(void){
// ...
int n;
FunByRef(n);
cout << n << endl; // n will have value of 2
}
This is Objective-C version of dadachi's Answer :
- (void)didMoveToParentViewController:(UIViewController *)parent{
if (parent == NULL) {
NSLog(@"Back Pressed");
}
}
Do you mean shapefile as in an Esri shapefile? Either way, you should be able to perform the conversion using ogr2ogr, which is available in the GDAL packages. You need the .shp
file and ideally the corresponding .dbf
file (which will provide contextual information).
Also, consider using a tool like MapShaper to reduce the complexity of your shapefiles before transforming them into KML; you'll reduce filesize substantially depending on how much detail you need.
Keep in mind that,even though you're returning an int, some OSes (Windows) truncate the returned value to a single byte (0-255).
Unfortunately, no. This feature is not available for facebook albums.
The size
property is what you're after as mentioned. To set both the the orientation and size of your page when printing, you could use the following:
/* ISO Paper Size */
@page {
size: A4 landscape;
}
/* Size in mm */
@page {
size: 100mm 200mm landscape;
}
/* Size in inches */
@page {
size: 4in 6in landscape;
}
Here's a link to the @page documentation.
By default, CORS does not include cookies on cross-origin requests. This is different from other cross-origin techniques such as JSON-P. JSON-P always includes cookies with the request, and this behavior can lead to a class of vulnerabilities called cross-site request forgery, or CSRF.
In order to reduce the chance of CSRF vulnerabilities in CORS, CORS requires both the server and the client to acknowledge that it is ok to include cookies on requests. Doing this makes cookies an active decision, rather than something that happens passively without any control.
The client code must set the withCredentials
property on the XMLHttpRequest
to true
in order to give permission.
However, this header alone is not enough. The server must respond with the Access-Control-Allow-Credentials
header. Responding with this header to true
means that the server allows cookies (or other user credentials) to be included on cross-origin requests.
You also need to make sure your browser isn't blocking third-party cookies if you want cross-origin credentialed requests to work.
Note that regardless of whether you are making same-origin or cross-origin requests, you need to protect your site from CSRF (especially if your request includes cookies).
Unfortunately as I am forced to use a windows server I have been unable to get openssl working in the way the above answer suggests.
However I was able to get a similar program called stunnel (which can be downloaded from here) to work. I got the idea from www.tech-and-dev.com but I had to change the instructions slightly. Here is what I did:
stunnel.conf
config file, which in my case I installed to C:\Program Files (x86)\stunnel
Then, you need to open this file in a text viewer such as notepad. Look for [gmail-smtp]
and remove the semicolon on the client line below (in the stunnel.conf file, every line that starts with a semicolon is a comment). You should end up with something like:
[gmail-smtp]
client = yes
accept = 127.0.0.1:25
connect = smtp.gmail.com:465
Once you have done this save the stunnel.conf
file and reload the config (to do this use the stunnel GUI program, and click on configuration=>Reload).
Now you should be ready to send email in the windows telnet client!
Go to Start=>run=>cmd.
Once cmd is open type in the following and press Enter:
telnet localhost 25
You should then see something similar to the following:
220 mx.google.com ESMTP f14sm1400408wbe.2
You will then need to reply by typing the following and pressing enter:
helo google
This should give you the following response:
250 mx.google.com at your service
If you get this you then need to type the following and press enter:
ehlo google
This should then give you the following response:
250-mx.google.com at your service, [212.28.228.49]
250-SIZE 35651584
250-8BITMIME
250-AUTH LOGIN PLAIN XOAUTH
250 ENHANCEDSTATUSCODES
Now you should be ready to authenticate with your Gmail details. To do this type the following and press enter:
AUTH LOGIN
This should then give you the following response:
334 VXNlcm5hbWU6
This means that we are ready to authenticate by using our gmail address and password.
However since this is an encrypted session, we're going to have to send the email and password encoded in base64. To encode your email and password, you can use a converter program or an online website to encode it (for example base64 or search on google for ’base64 online encoding’). I reccomend you do not touch the cmd/telnet session again until you have done this.
For example [email protected] would become dGVzdEBnbWFpbC5jb20= and password would become cGFzc3dvcmQ=
Once you have done this copy and paste your converted base64 username into the cmd/telnet session and press enter. This should give you following response:
334 UGFzc3dvcmQ6
Now copy and paste your converted base64 password into the cmd/telnet session and press enter. This should give you following response if both login credentials are correct:
235 2.7.0 Accepted
You should now enter the sender email (should be the same as the username) in the following format and press enter:
MAIL FROM:<[email protected]>
This should give you the following response:
250 2.1.0 OK x23sm1104292weq.10
You can now enter the recipient email address in a similar format and press enter:
RCPT TO:<[email protected]>
This should give you the following response:
250 2.1.5 OK x23sm1104292weq.10
Now you will need to type the following and press enter:
DATA
Which should give you the following response:
354 Go ahead x23sm1104292weq.10
Now we can start to compose the message! To do this enter your message in the following format (Tip: do this in notepad and copy the entire message into the cmd/telnet session):
From: Test <[email protected]>
To: Me <[email protected]>
Subject: Testing email from telnet
This is the body
Adding more lines to the body message.
When you have finished the email enter a dot:
.
This should give you the following response:
250 2.0.0 OK 1288307376 x23sm1104292weq.10
And now you need to end your session by typing the following and pressing enter:
QUIT
This should give you the following response:
221 2.0.0 closing connection x23sm1104292weq.10
Connection to host lost.
And your email should now be in the recipient’s mailbox!
Extremeandy has mentioned as of Chrome 66 autoplay video has been disabled.
After looking into this I found that muted videos are still able to be autoplayed. In my case the video didn't have any audio, but adding muted to the video tag has fixed it:
Hopefully this will help others also.
You can always add the @Produces("application/json")
above your web method or specify produces="application/json"
to return json. Then on top of the Student
class you can add @XmlRootElement
from javax.xml.bind.annotation
package.
Please note, it might not be a good idea to directly return model classes. Just a suggestion.
HTH.
Your Code is Fine just you need to place it inside the ready function.
$(document).ready( function() {
$("#cpa-form").submit(function(e){
e.preventDefault();
});
}
Change android:stretchColumns
value to *
.
Value 0
means stretch the first column. Value 1
means stretch the second column and so on.
Value *
means stretch all the columns.
Just an another solution, but I think it's more legible.
function zeroFill(text, size)_x000D_
{_x000D_
while (text.length < size){_x000D_
text = "0" + text;_x000D_
}_x000D_
_x000D_
return text;_x000D_
}
_x000D_
You can't "turn on" the IDENTITY: it's a table rebuild.
If you don't care about the number order, you'd add the column, NOT NULL, with IDENTITY in one go. 150k rows isn't a lot.
If you need to preserve some number order, then add the numbers accordingly. Then use the SSMS table designer to set the IDENTITY property. This allows you to generate a script which will do the column drop/add/keep numbers/reseed for you.
You pass the exception directly to the logger, e.g.
try {
...
} catch (Exception e) {
log.error( "failed!", e );
}
It's up to log4j to render the stack trace.
If you are using MYSQL-WORKBENCH, then you can select blob column normally and right click on column and click open value in editor. refer screenshot:
>>> source_list = ('1','a'),('2','b'),('3','c'),('4','d')
>>> list1, list2 = zip(*source_list)
>>> list1
('1', '2', '3', '4')
>>> list2
('a', 'b', 'c', 'd')
Edit: Note that zip(*iterable)
is its own inverse:
>>> list(source_list) == zip(*zip(*source_list))
True
When unpacking into two lists, this becomes:
>>> list1, list2 = zip(*source_list)
>>> list(source_list) == zip(list1, list2)
True
Addition suggested by rocksportrocker.
Just use MS Web platform Installer 4.5 to install all stuff for MS SQL Server 2008 R2.
And don't forget to reload machine.
:)
I pass around a simple Hashtable object with a single result member to avoid the return craziness as I also want to output to the console. It acts through pass by reference.
function sample-loop($returnObj) {
for($i = 0; $i -lt 10; $i++) {
Write-Host "loop counter: $i"
$returnObj.result++
}
}
function main-sample() {
$countObj = @{ result = 0 }
sample-loop -returnObj $countObj
Write-Host "_____________"
Write-Host "Total = " ($countObj.result)
}
main-sample
You can see real example usage at my GitHub project unpackTunes.
package ProblemSolving;
import java.util.HashSet;
import java.util.Set;
/**
* Given a 2-dimensional array of characters and a
* dictionary in which a word can be searched in O(1) time.
* Need to print all the words from array which are present
* in dictionary. Word can be formed in any direction but
* has to end at any edge of array.
* (Need not worry much about the dictionary)
*/
public class DictionaryWord {
private static char[][] matrix = new char[][]{
{'a', 'f', 'h', 'u', 'n'},
{'e', 't', 'a', 'i', 'r'},
{'a', 'e', 'g', 'g', 'o'},
{'t', 'r', 'm', 'l', 'p'}
};
private static int dim_x = matrix.length;
private static int dim_y = matrix[matrix.length -1].length;
private static Set<String> wordSet = new HashSet<String>();
public static void main(String[] args) {
//dictionary
wordSet.add("after");
wordSet.add("hate");
wordSet.add("hair");
wordSet.add("air");
wordSet.add("eat");
wordSet.add("tea");
for (int x = 0; x < dim_x; x++) {
for (int y = 0; y < dim_y; y++) {
checkAndPrint(matrix[x][y] + "");
int[][] visitedMap = new int[dim_x][dim_y];
visitedMap[x][y] = 1;
recursion(matrix[x][y] + "", visitedMap, x, y);
}
}
}
private static void checkAndPrint(String word) {
if (wordSet.contains(word)) {
System.out.println(word);
}
}
private static void recursion(String word, int[][] visitedMap, int x, int y) {
for (int i = Math.max(x - 1, 0); i < Math.min(x + 2, dim_x); i++) {
for (int j = Math.max(y - 1, 0); j < Math.min(y + 2, dim_y); j++) {
if (visitedMap[i][j] == 1) {
continue;
} else {
int[][] newVisitedMap = new int[dim_x][dim_y];
for (int p = 0; p < dim_x; p++) {
for (int q = 0; q < dim_y; q++) {
newVisitedMap[p][q] = visitedMap[p][q];
}
}
newVisitedMap[i][j] = 1;
checkAndPrint(word + matrix[i][j]);
recursion(word + matrix[i][j], newVisitedMap, i, j);
}
}
}
}
}
Many of the answers here are wrong. It seems people figure out what was causing status==0 in their particular case and then generalize that as the answer.
Practically speaking, status==0 for a failed XmlHttpRequest should be considered an undefined error.
The actual W3C spec defines the conditions for which zero is returned here: https://fetch.spec.whatwg.org/#concept-network-error
As you can see from the spec (fetch or XmlHttpRequest) this code could be the result of an error that happened even before the server is contacted.
Some of the common situations that produce this status code are reflected in the other answers but it could be any or none of these problems:
What would be helpful would be for browsers to provide detailed error reporting for more of these status==0 scenarios. Indeed, sometimes status==0 will accompany a helpful console message, but in others there is no other information.
It is indeed possible.
Here is an example calling the Weather SOAP Service using plain requests lib:
import requests
url="http://wsf.cdyne.com/WeatherWS/Weather.asmx?WSDL"
#headers = {'content-type': 'application/soap+xml'}
headers = {'content-type': 'text/xml'}
body = """<?xml version="1.0" encoding="UTF-8"?>
<SOAP-ENV:Envelope xmlns:ns0="http://ws.cdyne.com/WeatherWS/" xmlns:ns1="http://schemas.xmlsoap.org/soap/envelope/"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:SOAP-ENV="http://schemas.xmlsoap.org/soap/envelope/">
<SOAP-ENV:Header/>
<ns1:Body><ns0:GetWeatherInformation/></ns1:Body>
</SOAP-ENV:Envelope>"""
response = requests.post(url,data=body,headers=headers)
print response.content
Some notes:
application/soap+xml
is probably the more correct header to use (but the weatherservice prefers text/xml
For example:
from jinja2 import Environment, PackageLoader
env = Environment(loader=PackageLoader('myapp', 'templates'))
template = env.get_template('soaprequests/WeatherSericeRequest.xml')
body = template.render()
Some people have mentioned the suds library. Suds is probably the more correct way to be interacting with SOAP, but I often find that it panics a little when you have WDSLs that are badly formed (which, TBH, is more likely than not when you're dealing with an institution that still uses SOAP ;) ).
You can do the above with suds like so:
from suds.client import Client
url="http://wsf.cdyne.com/WeatherWS/Weather.asmx?WSDL"
client = Client(url)
print client ## shows the details of this service
result = client.service.GetWeatherInformation()
print result
Note: when using suds, you will almost always end up needing to use the doctor!
Finally, a little bonus for debugging SOAP; TCPdump is your friend. On Mac, you can run TCPdump like so:
sudo tcpdump -As 0
This can be helpful for inspecting the requests that actually go over the wire.
The above two code snippets are also available as gists:
In my opinion, Sergiy's answer should be the selected answer for the given question. I'm sharing my understanding.
I was looking to autoload my package files using composer which I have under the dir structure given below.
<web-root>
|--------src/
| |--------App/
| |
| |--------Test/
|
|---------library/
|
|---------vendor/
| |
| |---------composer/
| | |---------autoload_psr4.php
| |
| |----------autoload.php
|
|-----------composer.json
|
I'm using psr-4 autoloading specification.
Had to add below lines to the project's composer.json. I intend to place my class files inside src/App , src/Test and library directory.
"autoload": {
"psr-4": {
"OrgName\\AppType\\AppName\\": ["src/App", "src/Test", "library/"]
}
}
This is pretty much self explaining. OrgName\AppType\AppName is my intended namespace prefix. e.g for class User in src/App/Controller/Provider/User.php -
namespace OrgName\AppType\AppName\Controller\Provider; // namespace declaration
use OrgName\AppType\AppName\Controller\Provider\User; // when using the class
Also notice "src/App", "src/Test" .. are from your web-root that is where your composer.json is. Nothing to do with the vendor dir. take a look at vendor/autoload.php
Now if composer is installed properly all that is required is #composer update
After composer update my classes loaded successfully. What I observed is that composer is adding a line in vendor/composer/autoload_psr4.php
$vendorDir = dirname(dirname(__FILE__));
$baseDir = dirname($vendorDir);
return array(
'Monolog\\' => array($vendorDir . '/monolog/monolog/src/Monolog'),
'OrgName\\AppType\\AppName\\' => array($baseDir . '/src/App', $baseDir . '/src/Test', $baseDir . '/library'),
);
This is how composer maps. For psr-0 mapping is in vendor/composer/autoload_classmap.php
You need to make a second groupby object that groups by the states, and then use the div
method:
import numpy as np
import pandas as pd
np.random.seed(0)
df = pd.DataFrame({'state': ['CA', 'WA', 'CO', 'AZ'] * 3,
'office_id': list(range(1, 7)) * 2,
'sales': [np.random.randint(100000, 999999) for _ in range(12)]})
state_office = df.groupby(['state', 'office_id']).agg({'sales': 'sum'})
state = df.groupby(['state']).agg({'sales': 'sum'})
state_office.div(state, level='state') * 100
sales
state office_id
AZ 2 16.981365
4 19.250033
6 63.768601
CA 1 19.331879
3 33.858747
5 46.809373
CO 1 36.851857
3 19.874290
5 43.273852
WA 2 34.707233
4 35.511259
6 29.781508
the level='state'
kwarg in div
tells pandas to broadcast/join the dataframes base on the values in the state
level of the index.
You don't need to use arrays.
JSON values can be arrays, objects, or primitives (numbers or strings).
You can write JSON like this:
{
"stuff": {
"onetype": [
{"id":1,"name":"John Doe"},
{"id":2,"name":"Don Joeh"}
],
"othertype": {"id":2,"company":"ACME"}
},
"otherstuff": {
"thing": [[1,42],[2,2]]
}
}
You can use it like this:
obj.stuff.onetype[0].id
obj.stuff.othertype.id
obj.otherstuff.thing[0][1] //thing is a nested array or a 2-by-2 matrix.
//I'm not sure whether you intended to do that.
Promises can be "handled" after they are rejected. That is, one can call a promise's reject callback before providing a catch handler. This behavior is a little bothersome to me because one can write...
var promise = new Promise(function(resolve) {
kjjdjf(); // this function does not exist });
... and in this case, the Promise is rejected silently. If one forgets to add a catch handler, code will continue to silently run without errors. This could lead to lingering and hard-to-find bugs.
In the case of Node.js, there is talk of handling these unhandled Promise rejections and reporting the problems. This brings me to ES7 async/await. Consider this example:
async function getReadyForBed() {
let teethPromise = brushTeeth();
let tempPromise = getRoomTemperature();
// Change clothes based on room temperature
let temp = await tempPromise;
// Assume `changeClothes` also returns a Promise
if(temp > 20) {
await changeClothes("warm");
} else {
await changeClothes("cold");
}
await teethPromise;
}
In the example above, suppose teethPromise was rejected (Error: out of toothpaste!) before getRoomTemperature was fulfilled. In this case, there would be an unhandled Promise rejection until await teethPromise.
My point is this... if we consider unhandled Promise rejections to be a problem, Promises that are later handled by an await might get inadvertently reported as bugs. Then again, if we consider unhandled Promise rejections to not be problematic, legitimate bugs might not get reported.
Thoughts on this?
This is related to the discussion found in the Node.js project here:
Default Unhandled Rejection Detection Behavior
if you write the code this way:
function getReadyForBed() {
let teethPromise = brushTeeth();
let tempPromise = getRoomTemperature();
// Change clothes based on room temperature
return Promise.resolve(tempPromise)
.then(temp => {
// Assume `changeClothes` also returns a Promise
if (temp > 20) {
return Promise.resolve(changeClothes("warm"));
} else {
return Promise.resolve(changeClothes("cold"));
}
})
.then(teethPromise)
.then(Promise.resolve()); // since the async function returns nothing, ensure it's a resolved promise for `undefined`, unless it's previously rejected
}
When getReadyForBed is invoked, it will synchronously create the final (not returned) promise - which will have the same "unhandled rejection" error as any other promise (could be nothing, of course, depending on the engine). (I find it very odd your function doesn't return anything, which means your async function produces a promise for undefined.
If I make a Promise right now without a catch, and add one later, most "unhandled rejection error" implementations will actually retract the warning when i do later handle it. In other words, async/await doesn't alter the "unhandled rejection" discussion in any way that I can see.
to avoid this pitfall please write the code this way:
async function getReadyForBed() {
let teethPromise = brushTeeth();
let tempPromise = getRoomTemperature();
// Change clothes based on room temperature
var clothesPromise = tempPromise.then(function(temp) {
// Assume `changeClothes` also returns a Promise
if(temp > 20) {
return changeClothes("warm");
} else {
return changeClothes("cold");
}
});
/* Note that clothesPromise resolves to the result of `changeClothes`
due to Promise "chaining" magic. */
// Combine promises and await them both
await Promise.all(teethPromise, clothesPromise);
}
Note that this should prevent any unhandled promise rejection.
The following code works fine:
@using (Html.BeginForm("Upload", "Upload", FormMethod.Post,
new { enctype = "multipart/form-data" }))
{
@Html.ValidationSummary(true)
<fieldset>
Select a file <input type="file" name="file" />
<input type="submit" value="Upload" />
</fieldset>
}
and generates as expected:
<form action="/Upload/Upload" enctype="multipart/form-data" method="post">
<fieldset>
Select a file <input type="file" name="file" />
<input type="submit" value="Upload" />
</fieldset>
</form>
On the other hand if you are writing this code inside the context of other server side construct such as an if
or foreach
you should remove the @
before the using
. For example:
@if (SomeCondition)
{
using (Html.BeginForm("Upload", "Upload", FormMethod.Post,
new { enctype = "multipart/form-data" }))
{
@Html.ValidationSummary(true)
<fieldset>
Select a file <input type="file" name="file" />
<input type="submit" value="Upload" />
</fieldset>
}
}
As far as your server side code is concerned, here's how to proceed:
[HttpPost]
public ActionResult Upload(HttpPostedFileBase file)
{
if (file != null && file.ContentLength > 0)
{
var fileName = Path.GetFileName(file.FileName);
var path = Path.Combine(Server.MapPath("~/content/pics"), fileName);
file.SaveAs(path);
}
return RedirectToAction("Upload");
}
BE AWARE
In HTML/CSS (browser code) the format is #RRGGBBAA
with the alpha channel as last two hexadecimal digits.
here is the commend which is tested Sqlcmd -E -S "server name" -d "DB name" -i "SQL file path"
-E stand for windows trusted
You have probably defined $name
, $date
, $text
or $date2
to be a string, like:
$name = 'String';
Then if you treat it like an array it will give that fatal error:
$name[] = 'new value'; // fatal error
To solve your problem just add the following code at the beginning of the loop:
$name = array();
$date = array();
$text = array();
$date2 = array();
This will reset their value to array and then you'll able to use them as arrays.
Let me explain more clearly using an example having more than 2 threads.
Let us say you have n threads each holding locks L1, L2, ..., Ln respectively. Now let's say, starting from thread 1, each thread tries to acquire its neighbour thread's lock. So, thread 1 gets blocked for trying to acquire L2 (as L2 is owned by thread 2), thread 2 gets blocked for L3 and so on. The thread n gets blocked for L1. This is now a deadlock as no thread is able to execute.
class ImportantWork{
synchronized void callAnother(){
}
synchronized void call(ImportantWork work) throws InterruptedException{
Thread.sleep(100);
work.callAnother();
}
}
class Task implements Runnable{
ImportantWork myWork, otherWork;
public void run(){
try {
myWork.call(otherWork);
} catch (InterruptedException e) {
}
}
}
class DeadlockTest{
public static void main(String args[]){
ImportantWork work1=new ImportantWork();
ImportantWork work2=new ImportantWork();
ImportantWork work3=new ImportantWork();
Task task1=new Task();
task1.myWork=work1;
task1.otherWork=work2;
Task task2=new Task();
task2.myWork=work2;
task2.otherWork=work3;
Task task3=new Task();
task3.myWork=work3;
task3.otherWork=work1;
new Thread(task1).start();
new Thread(task2).start();
new Thread(task3).start();
}
}
In the above example, you can see that there are three threads holding Runnable
s task1, task2, and task3. Before the statement sleep(100)
the threads acquire the three work objects' locks when they enter the call()
method (due to the presence of synchronized
). But as soon as they try to callAnother()
on their neighbour thread's object, they are blocked, leading to a deadlock, because those objects' locks have already been taken.
You can use JavaScript Timing Events to call function after certain interval of time:
This shows the alert box after 3 seconds:
setInterval(function(){alert("Hello")},3000);
You can use two method of time event in javascript.i.e.
setInterval()
: executes a function, over and over again, at
specified time intervalssetTimeout()
: executes a function, once, after waiting a
specified number of millisecondsI might be late to the party but I was trying to implement dynamic refs to my project the proper way and all the answer I have found until know aren't quiet satisfying to my liking, so I came up with a solution that I think is simple and uses the native and recommended way of react to create the ref.
sometimes you find that the way documentation is wrote assumes that you have a known amount of views and in most cases this number is unknown so you need a way to solve the problem in this case, create dynamic refs to the unknown number of views you need to show in the class
so the most simple solution i could think of and worked flawlessly was to do as follows
class YourClass extends component {
state={
foo:"bar",
dynamicViews:[],
myData:[] //get some data from the web
}
inputRef = React.createRef()
componentDidMount(){
this.createViews()
}
createViews = ()=>{
const trs=[]
for (let i = 1; i < this.state.myData.lenght; i++) {
let ref =`myrefRow ${i}`
this[ref]= React.createRef()
const row = (
<tr ref={this[ref]}>
<td>
`myRow ${i}`
</td>
</tr>
)
trs.push(row)
}
this.setState({dynamicViews:trs})
}
clickHandler = ()=>{
//const scrollToView = this.inputRef.current.value
//That to select the value of the inputbox bt for demostrate the //example
value=`myrefRow ${30}`
this[value].current.scrollIntoView({ behavior: "smooth", block: "start" });
}
render(){
return(
<div style={{display:"flex", flexDirection:"column"}}>
<Button onClick={this.clickHandler}> Search</Button>
<input ref={this.inputRef}/>
<table>
<tbody>
{this.state.dynamicViews}
<tbody>
<table>
</div>
)
}
}
export default YourClass
that way the scroll will go to whatever row you are looking for..
cheers and hope it helps others
Since strings are lists of characters in Python, we can concatenate strings the same way we concatenate lists (with the + sign):
{{ var1 + '-' + var2 + '-' + var3 }}
If you want to pipe the resulting string to some filter, make sure you enclose the bits in parentheses:
e.g. To concatenate our 3 vars, and get a sha512 hash:
{{ (var1 + var2 + var3) | hash('sha512') }}
Note: this works on Ansible 2.3. I haven't tested it on earlier versions.
printf
is a function whereas cout
is a variable.
this worked for me:
Private Function arrIsEmpty(arr as variant)
On Error Resume Next
arrIsEmpty = False
arrIsEmpty = IsNumeric(UBound(arr))
End Function
Google says to check out getenv():
Returns an unmodifiable string map view of the current system environment.
I'm not sure how system variables differ from environment variables, however, so if you could clarify I could help out more.
Do Ctrl+alt+t
and then:
sudo chmod 777 /opt/lampp/phpmyadmin/config.inc.php
open config.inc.php
test
$cfg['Servers'][$i]['auth_type'] = 'config';
$cfg['Servers'][$i]['user'] = 'root';
$cfg['Servers'][$i]['password'] = '';
save config.inc.php
sudo chmod 644 /opt/lampp/phpmyadmin/config.inc.php
restart the xampp and check phpmyadmin
If it works i think i am glad to help you!!!
If you want to stay close to .NET check out Enterprise Library Logging Application Block. Look here. Or for a quickstart tutorial check this. I have used the Validation application Block from the Enterprise Library and it really suits my needs and is very easy to "inherit" (install it and refrence it!) in your project.
If you want to scan to the end of the string (stripping out a newline if there), just use:
char *x = "19 cool kid";
sscanf (x, "%d %[^\n]", &age, buffer);
That's because %s
only matches non-whitespace characters and will stop on the first whitespace it finds. The %[^\n]
format specifier will match every character that's not (because of ^
) in the selection given (which is a newline). In other words, it will match any other character.
Keep in mind that you should have allocated enough space in your buffer to take the string since you cannot be sure how much will be read (a good reason to stay away from scanf/fscanf
unless you use specific field widths).
You could do that with:
char *x = "19 cool kid";
char *buffer = malloc (strlen (x) + 1);
sscanf (x, "%d %[^\n]", &age, buffer);
(you don't need * sizeof(char)
since that's always 1 by definition).
This is what I am going to use based on marc_s answer:
SELECT
SUBSTRING(DATA.value('(/PAGECONTENT/TEXT)[1]', 'VARCHAR(100)'),PATINDEX('%NORTH%',DATA.value('(/PAGECONTENT/TEXT)[1]', 'VARCHAR(100)')) - 20,999)
FROM WEBPAGECONTENT
WHERE COALESCE(PATINDEX('%NORTH%',DATA.value('(/PAGECONTENT/TEXT)[1]', 'VARCHAR(100)')),0) > 0
Return a substring on the search where the search criteria exists
readChar doesn't have much flexibility so I combined your solutions (readLines and paste).
I have also added a space between each line:
con <- file("/Users/YourtextFile.txt", "r", blocking = FALSE)
singleString <- readLines(con) # empty
singleString <- paste(singleString, sep = " ", collapse = " ")
close(con)
This isn't a very beautiful answer, but it's what I use to create zero-length vectors:
0[-1] # numeric
""[-1] # character
TRUE[-1] # logical
0L[-1] # integer
A literal is a vector of length 1, and [-1]
removes the first element (the only element in this case) from the vector, leaving a vector with zero elements.
As a bonus, if you want a single NA
of the respective type:
0[NA] # numeric
""[NA] # character
TRUE[NA] # logical
0L[NA] # integer
The solution proposed in release notes for 2.1 doesn't work out-of-the-box. They forgot to mention that there is code:
internal string ResolveInstallPath()
{
if (!string.IsNullOrEmpty(this.OutputDirectory))
{
return this.OutputDirectory;
}
ISettings settings = this._configSettings;
...
}
which prevents it from working. To fix this you need to modify your NuGet.targets file and remove 'OutputDirectory' parameter:
<RestoreCommand>$(NuGetCommand) install "$(PackagesConfig)" -source "$(PackageSources)" $(RequireConsentSwitch)</RestoreCommand>
So now, if you add 'repositoryPath' config somewhere in NuGet.config (see the release notes for a description of valid places to put the config files), it will restore all packages into single location, but... Your .csproj still contains hints to assemblies written as relative paths...
I still don't understand why they went hard way instead of changing PackageManager so it would add hint paths relative to PackagesDir. That's the way I do manually to have different package locations locally (on my desktop) and on build agent.
<Reference Include="Autofac.Configuration, Version=2.6.3.862, Culture=neutral, PublicKeyToken=17863af14b0044da, processorArchitecture=MSIL">
<Private>True</Private>
<HintPath>$(PackagesDir)\Autofac.2.6.3.862\lib\NET40\Autofac.Configuration.dll</HintPath>
</Reference>
Yeah it's possible.
Button myBtn = (Button)findViewById(R.id.myButtonId);
myBtn.requestFocus();
or in XML
<Button ...><requestFocus /></Button>
Important Note: The button widget needs to be focusable
and focusableInTouchMode
. Most widgets are focusable
but not focusableInTouchMode
by default. So make sure to either set it in code
myBtn.setFocusableInTouchMode(true);
or in XML
android:focusableInTouchMode="true"
Here's a solution that also includes High(er)DPI (MDPI) devices > ~160 dots per inch like quite a few non-iOS Devices (f.e.: Google Nexus 7 2012):
.box {
background: url( 'img/box-bg.png' ) no-repeat top left;
width: 200px;
height: 200px;
}
@media only screen and ( -webkit-min-device-pixel-ratio: 1.3 ),
only screen and ( min--moz-device-pixel-ratio: 1.3 ),
only screen and ( -o-min-device-pixel-ratio: 2.6/2 ), /* returns 1.3, see Dev.Opera */
only screen and ( min-device-pixel-ratio: 1.3 ),
only screen and ( min-resolution: 124.8dpi ),
only screen and ( min-resolution: 1.3dppx ) {
.box {
background: url( 'img/[email protected]' ) no-repeat top left / 200px 200px;
}
}
As @3rror404 included in his edit after receiving feedback from the comments, there's a world beyond Webkit/iPhone. One thing that bugs me with most solutions around so far like the one referenced as source above at CSS-Tricks, is that this isn't taken fully into account.
The original source went already further.
As an example the Nexus 7 (2012) screen is a TVDPI screen with a weird device-pixel-ratio
of 1.325
. When loading the images with normal resolution they are upscaled via interpolation and therefore blurry. For me applying this rule in the media query to include those devices succeeded in best customer feedback.
As @djikay mentioned, you cannot pass multiple FromBody
parameters.
One workaround I have is to define a CompositeObject
,
public class CompositeObject
{
public Content Content { get; set; }
public Config Config { get; set; }
}
and have your WebAPI takes this CompositeObject
as the parameter instead.
public void StartProcessiong([FromBody] CompositeObject composite)
{ ... }
If you run your playbook with ansible-playbook -vvv
you'll see the actual command being run, so you can check whether the key is actually being included in the ssh command (and you might discover that the problem was the wrong username rather than the missing key).
I agree with Brian's comment above (and zigam's edit) that the vars section is too late. I also tested including the key in the on-the-fly definition of the host like this
# fails
- name: Add all instance public IPs to host group
add_host: hostname={{ item.public_ip }} groups=ec2hosts ansible_ssh_private_key_file=~/.aws/dev_staging.pem
loop: "{{ ec2.instances }}"
but that fails too.
So this is not an answer. Just some debugging help and things not to try.
https://developer.mozilla.org/en/JavaScript/Reference/Global_Objects/Date/getYear
getYear
is no longer used and has been replaced by thegetFullYear
method.The
getYear
method returns the year minus 1900; thus:
- For years greater than or equal to 2000, the value returned by
getYear
is 100 or greater. For example, if the year is 2026,getYear
returns 126.- For years between and including 1900 and 1999, the value returned by
getYear
is between 0 and 99. For example, if the year is 1976,getYear
returns 76.- For years less than 1900, the value returned by
getYear
is less than 0. For example, if the year is 1800,getYear
returns -100.- To take into account years before and after 2000, you should use
getFullYear
instead ofgetYear
so that the year is specified in full.
Assuming you can only have one 'something1'
or 'something2'
, etc. per line, you can use a lookup table:
$lookupTable = @{
'something1' = 'something1aa'
'something2' = 'something2bb'
'something3' = 'something3cc'
'something4' = 'something4dd'
'something5' = 'something5dsf'
'something6' = 'something6dfsfds'
}
$original_file = 'path\filename.abc'
$destination_file = 'path\filename.abc.new'
Get-Content -Path $original_file | ForEach-Object {
$line = $_
$lookupTable.GetEnumerator() | ForEach-Object {
if ($line -match $_.Key)
{
$line -replace $_.Key, $_.Value
break
}
}
} | Set-Content -Path $destination_file
If you can have more than one of those, just remove the break
in the if
statement.
I have always used OLEDB
for this, something like...
Dim sSheetName As String
Dim sConnection As String
Dim dtTablesList As DataTable
Dim oleExcelCommand As OleDbCommand
Dim oleExcelReader As OleDbDataReader
Dim oleExcelConnection As OleDbConnection
sConnection = "Provider=Microsoft.ACE.OLEDB.12.0;Data Source=C:\Test.xls;Extended Properties=""Excel 12.0;HDR=No;IMEX=1"""
oleExcelConnection = New OleDbConnection(sConnection)
oleExcelConnection.Open()
dtTablesList = oleExcelConnection.GetSchema("Tables")
If dtTablesList.Rows.Count > 0 Then
sSheetName = dtTablesList.Rows(0)("TABLE_NAME").ToString
End If
dtTablesList.Clear()
dtTablesList.Dispose()
If sSheetName <> "" Then
oleExcelCommand = oleExcelConnection.CreateCommand()
oleExcelCommand.CommandText = "Select * From [" & sSheetName & "]"
oleExcelCommand.CommandType = CommandType.Text
oleExcelReader = oleExcelCommand.ExecuteReader
nOutputRow = 0
While oleExcelReader.Read
End While
oleExcelReader.Close()
End If
oleExcelConnection.Close()
The ACE.OLEDB
provider will read both .xls
and .xlsx
files and I have always found the speed quite good.
To hide the arrow:
input::-webkit-calendar-picker-indicator{
display: none;
}
And to hide the prompt:
input[type="date"]::-webkit-input-placeholder{
visibility: hidden !important;
}
Another approach (also for object/array elements within the array1) could be2:
function chkDuplicates(arr,justCheck){
var len = arr.length, tmp = {}, arrtmp = arr.slice(), dupes = [];
arrtmp.sort();
while(len--){
var val = arrtmp[len];
if (/nul|nan|infini/i.test(String(val))){
val = String(val);
}
if (tmp[JSON.stringify(val)]){
if (justCheck) {return true;}
dupes.push(val);
}
tmp[JSON.stringify(val)] = true;
}
return justCheck ? false : dupes.length ? dupes : null;
}
//usages
chkDuplicates([1,2,3,4,5],true); //=> false
chkDuplicates([1,2,3,4,5,9,10,5,1,2],true); //=> true
chkDuplicates([{a:1,b:2},1,2,3,4,{a:1,b:2},[1,2,3]],true); //=> true
chkDuplicates([null,1,2,3,4,{a:1,b:2},NaN],true); //=> false
chkDuplicates([1,2,3,4,5,1,2]); //=> [1,2]
chkDuplicates([1,2,3,4,5]); //=> null
1 needs a browser that supports JSON, or a JSON library if not.
2 edit: function can now be used for simple check or to return an array of duplicate values
For Query parameters like domain.com/test?format=json&type=mini
format, then you can easily receive it via - req.query.
app.get('/test', function(req, res){
var format = req.query.format,
type = req.query.type;
});
Import moment js:
var fulldate = new Date(1370001284000);
var converted_date = moment(fulldate).format(");
res="\t\tx"
echo -e "[${res}]"
I have made something for this on CodePlex.
It works by intercepting the TextChanged event. If the result is a good number it will be stored. If it is something wrong, the last good value will be restored. The source is a bit too large to publish here, but here is a link to the class that handles the core of this logic.
function getFileExtension(filename)
{
var ext = /^.+\.([^.]+)$/.exec(filename);
return ext == null ? "" : ext[1];
}
Tested with
"a.b" (=> "b")
"a" (=> "")
".hidden" (=> "")
"" (=> "")
null (=> "")
Also
"a.b.c.d" (=> "d")
".a.b" (=> "b")
"a..b" (=> "b")
HttpContext.Current.Cache.Insert("subjectlist", subjectlist);
Laravel 4+ offers you these methods: whereDay()
, whereMonth()
, whereYear()
(#3946) and whereDate()
(#6879).
They do the SQL DATE()
work for you, and manage the differences of SQLite.
Your result can be achieved as so:
->whereDate('date', '<=', '2014-07-10')
For more examples, see first message of #3946 and this Laravel Daily article.
Update: Though the above method is convenient, as noted by Arth it is inefficient on large datasets, because the DATE()
SQL function has to be applied on each record, thus discarding the possible index.
Here are some ways to make the comparison (but please read notes below):
->where('date', '<=', '2014-07-10 23:59:59')
->where('date', '<', '2014-07-11')
// '2014-07-11'
$dayAfter = (new DateTime('2014-07-10'))->modify('+1 day')->format('Y-m-d');
->where('date', '<', $dayAfter)
Notes:
If you are in need of specific implementation for sorting algorithms, data structures or anything that have a link to the above, could I recommend you the excellent "Data Structures and Algorithms" project on CodePlex?
It will have everything you need without reinventing the wheel.
Just my little grain of salt.
just try
<img :src="require(`${imgPreUrl}img/logo.png`)">
_x000D_
For frequent uses of this command I found it easy to add the location of C:\xampp\apache\bin
to the PATH
. Use whatever directory you have this installed in.
Then you can run from any directory in command line:
httpd -k restart
The answer above that suggests httpd -k -restart is actually a typo. You can see the commands by running httpd /?
One important point that is alluded to but not directly addressed is the difference between "precision" and "scale" and how they are used in the two statements. "precision" is the total number of significant digits in a number. "scale" is the number of digits to the right of the decimal point.
The MathContext constructor only accepts precision and RoundingMode as arguments, and therefore scale is never specified in the first statement.
setScale()
obviously accepts scale as an argument, as well as RoundingMode, however precision is never specified in the second statement.
If you move the decimal point one place to the right, the difference will become clear:
// 1.
new BigDecimal("35.3456").round(new MathContext(4, RoundingMode.HALF_UP));
//result = 35.35
// 2.
new BigDecimal("35.3456").setScale(4, RoundingMode.HALF_UP);
// result = 35.3456
you can't change the DateTime object, it's immutable. However, you can set it to a new value, for example:
var newDate = oldDate.Date + new TimeSpan(11, 30, 55);
Moving the file from which you are importing to an outside directory helps.
This is extra useful when your main file makes any other files in its own directory.
Ex:
Before:
Project
|---dir1
|-------main.py
|-------module1.py
After:
Project
|---module1.py
|---dir1
|-------main.py
You can also do this with linq if you'd like
var names = new List<string>() { "John", "Anna", "Monica" };
var joinedNames = names.Aggregate((a, b) => a + ", " + b);
Although I prefer the non-linq syntax in Quartermeister's answer and I think Aggregate
might perform slower (probably more string concatenation operations).
you can do like this:
if("merchant_id" in thisSession){ /** will return true if exist */
console.log('Exist!');
}
or
if(thisSession["merchant_id"]){ /** will return its value if exist */
console.log('Exist!');
}
This works in MariaDB:
SELECT Req_ID, (R1+R2+R3+R4+R5)/5 AS Average
FROM Request
GROUP BY Req_ID;
I too faced the same issue. I followed the following steps to resolve my issue -
If the above steps don't work for you, instead of Workspace default JRE, you can choose an Alternate JRE and give the path to the JRE that you want to point.
I had a similar problem. Data in a worksheet I needed to save as a separate CSV file.
Here's my code behind a command button
Private Sub cmdSave()
Dim sFileName As String
Dim WB As Workbook
Application.DisplayAlerts = False
sFileName = "MyFileName.csv"
'Copy the contents of required sheet ready to paste into the new CSV
Sheets(1).Range("A1:T85").Copy 'Define your own range
'Open a new XLS workbook, save it as the file name
Set WB = Workbooks.Add
With WB
.Title = "MyTitle"
.Subject = "MySubject"
.Sheets(1).Select
ActiveSheet.Paste
.SaveAs "MyDirectory\" & sFileName, xlCSV
.Close
End With
Application.DisplayAlerts = True
End Sub
This works for me :-)
I find the jQuery select box manipulation plugin useful for this type of thing.
You can easily remove an item by index, value, or regex.
removeOption(index/value/regex/array[, selectedOnly])
Remove an option by
- index: $("#myselect2").removeOption(0);
- value: $("#myselect").removeOption("Value");
- regular expression: $("#myselect").removeOption(/^val/i);
- array $("#myselect").removeOption(["myselect_1", "myselect_2"]);
To remove all options, you can do $("#myselect").removeOption(/./);
.
Try HostingEnvironment.MapPath
, which is static
.
See this SO question for confirmation that HostingEnvironment.MapPath
returns the same value as Server.MapPath
: What is the difference between Server.MapPath and HostingEnvironment.MapPath?
try this
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN"
"http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html>
<body>
<a href="#name">click me</a>
<br><br><br><br><br><br><br><br><br><br><br>
<br><br><br><br><br><br><br><br><br><br><br>
<br><br><br><br><br><br><br><br><br><br><br>
<div name="name" id="name">here</div>
</body>
</html>
$(document).on("submit","form",function(e){
//e.preventDefault();
$form = $(this);
$i = 0;
$("form input[required],form select[required]").each(function(){
if ($(this).val().trim() == ''){
$(this).css('border-color', 'red');
$i++;
}else{
$(this).css('border-color', '');
}
})
if($i != 0) e.preventDefault();
});
$(document).on("change","input[required]",function(e){
if ($(this).val().trim() == '')
$(this).css('border-color', 'red');
else
$(this).css('border-color', '');
});
$(document).on("change","select[required]",function(e){
if ($(this).val().trim() == '')
$(this).css('border-color', 'red');
else
$(this).css('border-color', '');
});
_x000D_
Hi @donaldhughes I'm new on it too, and I use to do this: 1 - Create a class to get my Connection String 2 - Call the connection string class in a Using
Look:
DapperConnection.cs
public class DapperConnection
{
public IDbConnection DapperCon {
get
{
return new SqlConnection(ConfigurationManager.ConnectionStrings["Default"].ToString());
}
}
}
DapperRepository.cs
public class DapperRepository : DapperConnection
{
public IEnumerable<TBMobileDetails> ListAllMobile()
{
using (IDbConnection con = DapperCon )
{
con.Open();
string query = "select * from Table";
return con.Query<TableEntity>(query);
}
}
}
And it works fine.