I also have the same problem, and the solution is I didn't bind the event in my onClick. so when it renders for the first time and the data is more, which ends up calling the state setter again, which triggers React to call your function again and so on.
export default function Component(props) {
function clickEvent (event, variable){
console.log(variable);
}
return (
<div>
<IconButton
key="close"
aria-label="Close"
color="inherit"
onClick={e => clickEvent(e, 10)} // or you can call like this:onClick={() => clickEvent(10)}
>
</div>
)
}
Go to resources folder where the application.properties is present, update the below code in that.
spring.autoconfigure.exclude=org.springframework.boot.autoconfigure.jdbc.DataSourceAutoConfiguration
Replace Function:
function PMA_isRememberSortingOrder($analyzed_sql_results) {
return $GLOBALS['cfg']['RememberSorting']
&&!(
$analyzed_sql_results['is_count']
|| $analyzed_sql_results['is_export']
|| $analyzed_sql_results['is_func']
|| $analyzed_sql_results['is_analyse']
)&&
$analyzed_sql_results['select_from']&&
(
empty($analyzed_sql_results['select_expr'])||
count($analyzed_sql_results['select_expr'])==1&&
$analyzed_sql_results['select_expr'][0] == '*'
)
&& count($analyzed_sql_results['select_tables']) == 1;
}
I am behind my organization's proxy, running the following commands fixed the issue for me
npm config set proxy http://proxy.yourproxydomain.com:port
npm config set https-proxy http://proxy.yourproxydomain.com:port
npm config set strict-ssl false
npm config set registry https://registry.npmjs.org/
Don't use with Router.
handleSubmit(e){
e.preventDefault();
this.props.form.validateFieldsAndScroll((err,values)=>{
if(!err){
this.setState({
visible:false
});
this.props.form.resetFields();
console.log(values.username);
const path = '/list/';
this.props.history.push(path);
}
})
}
It works well.
You're missing the binding of the method in the constructor. This is how React suggests that you do it:
class Whatever {
constructor() {
super();
this.onKeyPressed = this.onKeyPressed.bind(this);
}
onKeyPressed(e) {
// your code ...
}
render() {
return (<div onKeyDown={this.onKeyPressed} />);
}
}
There are other ways of doing this, but this will be the most efficient at runtime.
I was also looking for some answer. Here all answers are quite good, but none of them give answers how we can use it if user starts application after opening it back. (I meant to say using cookie together).
No need to create even different privateRoute Component. Below is my code
import React, { Component } from 'react';
import { Route, Switch, BrowserRouter, Redirect } from 'react-router-dom';
import { Provider } from 'react-redux';
import store from './stores';
import requireAuth from './components/authentication/authComponent'
import SearchComponent from './components/search/searchComponent'
import LoginComponent from './components/login/loginComponent'
import ExampleContainer from './containers/ExampleContainer'
class App extends Component {
state = {
auth: true
}
componentDidMount() {
if ( ! Cookies.get('auth')) {
this.setState({auth:false });
}
}
render() {
return (
<Provider store={store}>
<BrowserRouter>
<Switch>
<Route exact path="/searchComponent" component={requireAuth(SearchComponent)} />
<Route exact path="/login" component={LoginComponent} />
<Route exact path="/" component={requireAuth(ExampleContainer)} />
{!this.state.auth && <Redirect push to="/login"/> }
</Switch>
</BrowserRouter>
</Provider>);
}
}
}
export default App;
And here is authComponent
import React from 'react';
import { withRouter } from 'react-router';
import * as Cookie from "js-cookie";
export default function requireAuth(Component) {
class AuthenticatedComponent extends React.Component {
constructor(props) {
super(props);
this.state = {
auth: Cookie.get('auth')
}
}
componentDidMount() {
this.checkAuth();
}
checkAuth() {
const location = this.props.location;
const redirect = location.pathname + location.search;
if ( ! Cookie.get('auth')) {
this.props.history.push(`/login?redirect=${redirect}`);
}
}
render() {
return Cookie.get('auth')
? <Component { ...this.props } />
: null;
}
}
return withRouter(AuthenticatedComponent)
}
Below I have written blog, you can get more depth explanation there as well.
Try a custom propTypes :
const childrenPropTypeLogic = (props, propName, componentName) => {
const prop = props[propName];
return React.Children
.toArray(prop)
.find(child => child.type !== 'div') && new Error(`${componentName} only accepts "div" elements`);
};
static propTypes = {
children : childrenPropTypeLogic
}
const {Component, PropTypes} = React;_x000D_
_x000D_
const childrenPropTypeLogic = (props, propName, componentName) => {_x000D_
var error;_x000D_
var prop = props[propName];_x000D_
_x000D_
React.Children.forEach(prop, function (child) {_x000D_
if (child.type !== 'div') {_x000D_
error = new Error(_x000D_
'`' + componentName + '` only accepts children of type `div`.'_x000D_
);_x000D_
}_x000D_
});_x000D_
_x000D_
return error;_x000D_
};_x000D_
_x000D_
_x000D_
_x000D_
class ContainerComponent extends Component {_x000D_
static propTypes = {_x000D_
children: childrenPropTypeLogic,_x000D_
}_x000D_
_x000D_
render() {_x000D_
return (_x000D_
<div>_x000D_
{this.props.children}_x000D_
</div>_x000D_
);_x000D_
}_x000D_
}_x000D_
_x000D_
_x000D_
_x000D_
class App extends Component {_x000D_
render(){_x000D_
return (_x000D_
<ContainerComponent>_x000D_
<div>1</div>_x000D_
<div>2</div>_x000D_
</ContainerComponent>_x000D_
)_x000D_
}_x000D_
}_x000D_
_x000D_
ReactDOM.render(<App /> , document.querySelector('section'))
_x000D_
<script src="https://cdnjs.cloudflare.com/ajax/libs/react/15.1.0/react.min.js"></script>_x000D_
<script src="https://cdnjs.cloudflare.com/ajax/libs/react/15.1.0/react-dom.min.js"></script>_x000D_
_x000D_
<section />
_x000D_
Even after following all the suggestions, if it shows error then check your buildType in Gradle.
Make sure
signingConfig signingConfigs.config
is in release scope, not in debug.
For those using something like babel stage-2 or transform-class-properties:
import React, { PropTypes, Component } from 'react';
export default class ExampleComponent extends Component {
static contextTypes = {
// some context types
};
static propTypes = {
prop1: PropTypes.object
};
static defaultProps = {
prop1: { foobar: 'foobar' }
};
...
}
Update
As of React v15.5, PropTypes
was moved out of the main React Package (link):
import PropTypes from 'prop-types';
Edit
As pointed out by @johndodo, static
class properties are actually not a part of the ES7 spec, but rather are currently only supported by babel. Updated to reflect that.
Don't forget to return
the mapped array , like:
lapsList() {
return this.state.laps.map((data) => {
return (
<View><Text>{data.time}</Text></View>
)
})
}
Reference for the map()
method: https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Array/map
I needed an example using React.Component
so I am posting it:
import React from 'react';
import * as Redux from 'react-redux';
class NavigationHeader extends React.Component {
}
const mapStateToProps = function (store) {
console.log(`mapStateToProps ${store}`);
return {
navigation: store.navigation
};
};
export default Redux.connect(mapStateToProps)(NavigationHeader);
How to do a redirect to another route with react-router?
For example, when a user clicks a link <Link to="/" />Click to route</Link>
react-router will look for /
and you can use Redirect to
and send the user somewhere else like the login route.
From the docs for ReactRouterTraining:
Rendering a
<Redirect>
will navigate to a new location. The new location will override the current location in the history stack, like server-side redirects (HTTP 3xx) do.
import { Route, Redirect } from 'react-router'
<Route exact path="/" render={() => (
loggedIn ? (
<Redirect to="/dashboard"/>
) : (
<PublicHomePage/>
)
)}/>
to: string, The URL to redirect to.
<Redirect to="/somewhere/else"/>
to: object, A location to redirect to.
<Redirect to={{
pathname: '/login',
search: '?utm=your+face',
state: { referrer: currentLocation }
}}/>
import ReactDOM from 'react-dom';
//...
componentDidMount() {
var n = ReactDOM.findDOMNode(this);
console.log(n.offsetTop);
}
You can just grab the offsetTop from the Node.
Instant
and LocalDateTime
are two entirely different animals: One represents a moment, the other does not.
Instant
represents a moment, a specific point in the timeline.LocalDateTime
represents a date and a time-of-day. But lacking a time zone or offset-from-UTC, this class cannot represent a moment. It represents potential moments along a range of about 26 to 27 hours, the range of all time zones around the globe. A LocalDateTime
value is inherently ambiguous.
LocalDateTime
is rather date/clock representation including time-zones for humans.
Your statement is incorrect: A LocalDateTime
has no time zone. Having no time zone is the entire point of that class.
To quote that class’ doc:
This class does not store or represent a time-zone. Instead, it is a description of the date, as used for birthdays, combined with the local time as seen on a wall clock. It cannot represent an instant on the time-line without additional information such as an offset or time-zone.
So Local…
means “not zoned, no offset”.
Instant
An Instant
is a moment on the timeline in UTC, a count of nanoseconds since the epoch of the first moment of 1970 UTC (basically, see class doc for nitty-gritty details). Since most of your business logic, data storage, and data exchange should be in UTC, this is a handy class to be used often.
Instant instant = Instant.now() ; // Capture the current moment in UTC.
OffsetDateTime
The class OffsetDateTime
class represents a moment as a date and time with a context of some number of hours-minutes-seconds ahead of, or behind, UTC. The amount of offset, the number of hours-minutes-seconds, is represented by the ZoneOffset
class.
If the number of hours-minutes-seconds is zero, an OffsetDateTime
represents a moment in UTC the same as an Instant
.
ZoneOffset
The ZoneOffset
class represents an offset-from-UTC, a number of hours-minutes-seconds ahead of UTC or behind UTC.
A ZoneOffset
is merely a number of hours-minutes-seconds, nothing more. A zone is much more, having a name and a history of changes to offset. So using a zone is always preferable to using a mere offset.
ZoneId
A time zone is represented by the ZoneId
class.
A new day dawns earlier in Paris than in Montréal, for example. So we need to move the clock’s hands to better reflect noon (when the Sun is directly overhead) for a given region. The further away eastward/westward from the UTC line in west Europe/Africa the larger the offset.
A time zone is a set of rules for handling adjustments and anomalies as practiced by a local community or region. The most common anomaly is the all-too-popular lunacy known as Daylight Saving Time (DST).
A time zone has the history of past rules, present rules, and rules confirmed for the near future.
These rules change more often than you might expect. Be sure to keep your date-time library's rules, usually a copy of the 'tz' database, up to date. Keeping up-to-date is easier than ever now in Java 8 with Oracle releasing a Timezone Updater Tool.
Specify a proper time zone name in the format of Continent/Region
, such as America/Montreal
, Africa/Casablanca
, or Pacific/Auckland
. Never use the 2-4 letter abbreviation such as EST
or IST
as they are not true time zones, not standardized, and not even unique(!).
Time Zone = Offset + Rules of Adjustments
ZoneId z = ZoneId.of( “Africa/Tunis” ) ;
ZonedDateTime
Think of ZonedDateTime
conceptually as an Instant
with an assigned ZoneId
.
ZonedDateTime = ( Instant + ZoneId )
To capture the current moment as seen in the wall-clock time used by the people of a particular region (a time zone):
ZonedDateTime zdt = ZonedDateTime.now( z ) ; // Pass a `ZoneId` object such as `ZoneId.of( "Europe/Paris" )`.
Nearly all of your backend, database, business logic, data persistence, data exchange should all be in UTC. But for presentation to users you need to adjust into a time zone expected by the user. This is the purpose of the ZonedDateTime
class and the formatter classes used to generate String representations of those date-time values.
ZonedDateTime zdt = instant.atZone( z ) ;
String output = zdt.toString() ; // Standard ISO 8601 format.
You can generate text in localized format using DateTimeFormatter
.
DateTimeFormatter f = DateTimeFormatter.ofLocalizedDateTime( FormatStyle.FULL ).withLocale( Locale.CANADA_FRENCH ) ;
String outputFormatted = zdt.format( f ) ;
mardi 30 avril 2019 à 23 h 22 min 55 s heure de l’Inde
LocalDate
, LocalTime
, LocalDateTime
The "local" date time classes, LocalDateTime
, LocalDate
, LocalTime
, are a different kind of critter. The are not tied to any one locality or time zone. They are not tied to the timeline. They have no real meaning until you apply them to a locality to find a point on the timeline.
The word “Local” in these class names may be counter-intuitive to the uninitiated. The word means any locality, or every locality, but not a particular locality.
So for business apps, the "Local" types are not often used as they represent just the general idea of a possible date or time not a specific moment on the timeline. Business apps tend to care about the exact moment an invoice arrived, a product shipped for transport, an employee was hired, or the taxi left the garage. So business app developers use Instant
and ZonedDateTime
classes most commonly.
So when would we use LocalDateTime
? In three situations:
Notice that none of these three cases involve a single certain specific point on the timeline, none of these are a moment.
Sometimes we want to represent a certain time-of-day on a certain date, but want to apply that into multiple localities across time zones.
For example, "Christmas starts at midnight on the 25th of December 2015" is a LocalDateTime
. Midnight strikes at different moments in Paris than in Montréal, and different again in Seattle and in Auckland.
LocalDate ld = LocalDate.of( 2018 , Month.DECEMBER , 25 ) ;
LocalTime lt = LocalTime.MIN ; // 00:00:00
LocalDateTime ldt = LocalDateTime.of( ld , lt ) ; // Christmas morning anywhere.
Another example, "Acme Company has a policy that lunchtime starts at 12:30 PM at each of its factories worldwide" is a LocalTime
. To have real meaning you need to apply it to the timeline to figure the moment of 12:30 at the Stuttgart factory or 12:30 at the Rabat factory or 12:30 at the Sydney factory.
Another situation to use LocalDateTime
is for booking future events (ex: Dentist appointments). These appointments may be far enough out in the future that you risk politicians redefining the time zone. Politicians often give little forewarning, or even no warning at all. If you mean "3 PM next January 23rd" regardless of how the politicians may play with the clock, then you cannot record a moment – that would see 3 PM turn into 2 PM or 4 PM if that region adopted or dropped Daylight Saving Time, for example.
For appointments, store a LocalDateTime
and a ZoneId
, kept separately. Later, when generating a schedule, on-the-fly determine a moment by calling LocalDateTime::atZone( ZoneId )
to generate a ZonedDateTime
object.
ZonedDateTime zdt = ldt.atZone( z ) ; // Given a date, a time-of-day, and a time zone, determine a moment, a point on the timeline.
If needed, you can adjust to UTC. Extract an Instant
from the ZonedDateTime
.
Instant instant = zdt.toInstant() ; // Adjust from some zone to UTC. Same moment, same point on the timeline, different wall-clock time.
Some people might use LocalDateTime
in a situation where the time zone or offset is unknown.
I consider this case inappropriate and unwise. If a zone or offset is intended but undetermined, you have bad data. That would be like storing a price of a product without knowing the intended currency (dollars, pounds, euros, etc.). Not a good idea.
For completeness, here is a table of all the possible date-time types, both modern and legacy in Java, as well as those defined by the SQL standard. This might help to place the Instant
& LocalDateTime
classes in a larger context.
Notice the odd choices made by the Java team in designing JDBC 4.2. They chose to support all the java.time times… except for the two most commonly used classes: Instant
& ZonedDateTime
.
But not to worry. We can easily convert back and forth.
Converting Instant
.
// Storing
OffsetDateTime odt = instant.atOffset( ZoneOffset.UTC ) ;
myPreparedStatement.setObject( … , odt ) ;
// Retrieving
OffsetDateTime odt = myResultSet.getObject( … , OffsetDateTime.class ) ;
Instant instant = odt.toInstant() ;
Converting ZonedDateTime
.
// Storing
OffsetDateTime odt = zdt.toOffsetDateTime() ;
myPreparedStatement.setObject( … , odt ) ;
// Retrieving
OffsetDateTime odt = myResultSet.getObject( … , OffsetDateTime.class ) ;
ZoneId z = ZoneId.of( "Asia/Kolkata" ) ;
ZonedDateTime zdt = odt.atZone( z ) ;
The java.time framework is built into Java 8 and later. These classes supplant the troublesome old legacy date-time classes such as java.util.Date
, Calendar
, & SimpleDateFormat
.
To learn more, see the Oracle Tutorial. And search Stack Overflow for many examples and explanations. Specification is JSR 310.
The Joda-Time project, now in maintenance mode, advises migration to the java.time classes.
You may exchange java.time objects directly with your database. Use a JDBC driver compliant with JDBC 4.2 or later. No need for strings, no need for java.sql.*
classes. Hibernate 5 & JPA 2.2 support java.time.
Where to obtain the java.time classes?
The ThreeTen-Extra project extends java.time with additional classes. This project is a proving ground for possible future additions to java.time. You may find some useful classes here such as Interval
, YearWeek
, YearQuarter
, and more.
If I am to define the same proptypes for a particular shape multiple times, I like abstract it out to a proptypes file so that if the shape of the object changes, I only have to change the code in one place. It helps dry up the codebase a bit.
Example:
// Inside my proptypes.js file
import PT from 'prop-types';
export const product = {
id: PT.number.isRequired,
title: PT.string.isRequired,
sku: PT.string.isRequired,
description: PT.string.isRequired,
};
// Inside my component file
import PT from 'prop-types';
import { product } from './proptypes;
List.propTypes = {
productList: PT.arrayOf(product)
}
Quite recently they've added the depends_on
feature.
Edit:
As of compose version 2.1+ till version 3 you can use depends_on
in conjunction with healthcheck
to achieve this:
version: '2.1'
services:
web:
build: .
depends_on:
db:
condition: service_healthy
redis:
condition: service_started
redis:
image: redis
db:
image: redis
healthcheck:
test: "exit 0"
Before version 2.1
You can still use depends_on
, but it only effects the order in which services are started - not if they are ready before the dependant service is started.
It seems to require at least version 1.6.0.
Usage would look something like this:
version: '2'
services:
web:
build: .
depends_on:
- db
- redis
redis:
image: redis
db:
image: postgres
From the docs:
Express dependency between services, which has two effects:
- docker-compose up will start services in dependency order. In the following example, db and redis will be started before web.
- docker-compose up SERVICE will automatically include SERVICE’s dependencies. In the following example, docker-compose up web will also create and start db and redis.
Note: As I understand it, although this does set the order in which containers are loaded. It does not guarantee that the service inside the container has actually loaded.
For example, you postgres container might be up. But the postgres service itself might still be initializing within the container.
Considering the post JSX In Depth, you can solve your problem this way:
if (isRequired) {
return (
<MyOwnInput name="test" required='required' />
);
}
return (
<MyOwnInput name="test" />
);
Use this for Swift-5+
import Foundation
import UIKit
import SystemConfiguration
public class InternetConnectionManager {
private init() {
}
public static func isConnectedToNetwork() -> Bool {
var zeroAddress = sockaddr_in()
zeroAddress.sin_len = UInt8(MemoryLayout.size(ofValue: zeroAddress))
zeroAddress.sin_family = sa_family_t(AF_INET)
guard let defaultRouteReachability = withUnsafePointer(to: &zeroAddress, {
$0.withMemoryRebound(to: sockaddr.self, capacity: 1) {
SCNetworkReachabilityCreateWithAddress(nil, $0)
}
}) else {
return false
}
var flags = SCNetworkReachabilityFlags()
if !SCNetworkReachabilityGetFlags(defaultRouteReachability, &flags) {
return false
}
let isReachable = (flags.rawValue & UInt32(kSCNetworkFlagsReachable)) != 0
let needsConnection = (flags.rawValue & UInt32(kSCNetworkFlagsConnectionRequired)) != 0
return (isReachable && !needsConnection)
}
}
Usage:
if InternetConnectionManager.isConnectedToNetwork(){
print("Connected")
}else{
print("Not Connected")
}
Or Just use this framework
for more Utilities
: Link
That's how Promise.all
is designed to work. If a single promise reject()
's, the entire method immediately fails.
There are use cases where one might want to have the Promise.all
allowing for promises to fail. To make this happen, simply don't use any reject()
statements in your promise. However, to ensure your app/script does not freeze in case any single underlying promise never gets a response, you need to put a timeout on it.
function getThing(uid,branch){
return new Promise(function (resolve, reject) {
xhr.get().then(function(res) {
if (res) {
resolve(res);
}
else {
resolve(null);
}
setTimeout(function(){reject('timeout')},10000)
}).catch(function(error) {
resolve(null);
});
});
}
Decode them and compare them as mgilson comment.
Order does not matter for dictionary as long as the keys, and values matches. (Dictionary has no order in Python)
>>> {'a': 1, 'b': 2} == {'b': 2, 'a': 1}
True
But order is important in list; sorting will solve the problem for the lists.
>>> [1, 2] == [2, 1]
False
>>> [1, 2] == sorted([2, 1])
True
>>> a = '{"errors": [{"error": "invalid", "field": "email"}, {"error": "required", "field": "name"}], "success": false}'
>>> b = '{"errors": [{"error": "required", "field": "name"}, {"error": "invalid", "field": "email"}], "success": false}'
>>> a, b = json.loads(a), json.loads(b)
>>> a['errors'].sort()
>>> b['errors'].sort()
>>> a == b
True
Above example will work for the JSON in the question. For general solution, see Zero Piraeus's answer.
Make it simple : DEMO
section {_x000D_
display: flex;_x000D_
flex-flow: column;_x000D_
height: 300px;_x000D_
}_x000D_
_x000D_
header {_x000D_
background: tomato;_x000D_
/* no flex rules, it will grow */_x000D_
}_x000D_
_x000D_
div {_x000D_
flex: 1; /* 1 and it will fill whole space left if no flex value are set to other children*/_x000D_
background: gold;_x000D_
overflow: auto;_x000D_
}_x000D_
_x000D_
footer {_x000D_
background: lightgreen;_x000D_
min-height: 60px; /* min-height has its purpose :) , unless you meant height*/_x000D_
}
_x000D_
<section>_x000D_
<header>_x000D_
header: sized to content_x000D_
<br/>(but is it really?)_x000D_
</header>_x000D_
<div>_x000D_
main content: fills remaining space<br> x_x000D_
<br>x<br>x<br>x<br>x<br>x<br>x<br>x<br>x<br>x<br>_x000D_
<!-- uncomment to see it break -->_x000D_
x<br>x<br>x<br>x<br>x<br>x<br>x<br>x<br>x<br> x_x000D_
<br>x<br>x<br>x<br>x<br>x<br>x<br>x<br>x<br> x_x000D_
<br>x<br>x<br>x<br>x<br>x<br>x<br>x<br>x<br> x_x000D_
<br>x<br>x<br>x<br>x<br>x<br>x<br>x<br>x<br>_x000D_
<!-- -->_x000D_
</div>_x000D_
<footer>_x000D_
footer: fixed height in px_x000D_
</footer>_x000D_
</section>
_x000D_
Full screen version
section {_x000D_
display: flex;_x000D_
flex-flow: column;_x000D_
height: 100vh;_x000D_
}_x000D_
_x000D_
header {_x000D_
background: tomato;_x000D_
/* no flex rules, it will grow */_x000D_
}_x000D_
_x000D_
div {_x000D_
flex: 1;_x000D_
/* 1 and it will fill whole space left if no flex value are set to other children*/_x000D_
background: gold;_x000D_
overflow: auto;_x000D_
}_x000D_
_x000D_
footer {_x000D_
background: lightgreen;_x000D_
min-height: 60px;_x000D_
/* min-height has its purpose :) , unless you meant height*/_x000D_
}_x000D_
_x000D_
body {_x000D_
margin: 0;_x000D_
}
_x000D_
<section>_x000D_
<header>_x000D_
header: sized to content_x000D_
<br/>(but is it really?)_x000D_
</header>_x000D_
<div>_x000D_
main content: fills remaining space<br> x_x000D_
<br>x<br>x<br>x<br>x<br>x<br>x<br>x<br>x<br>x<br>_x000D_
<!-- uncomment to see it break -->_x000D_
x<br>x<br>x<br>x<br>x<br>x<br>x<br>x<br>x<br> x_x000D_
<br>x<br>x<br>x<br>x<br>x<br>x<br>x<br>x<br> x_x000D_
<br>x<br>x<br>x<br>x<br>x<br>x<br>x<br>x<br> x_x000D_
<br>x<br>x<br>x<br>x<br>x<br>x<br>x<br>x<br>_x000D_
<!-- -->_x000D_
</div>_x000D_
<footer>_x000D_
footer: fixed height in px_x000D_
</footer>_x000D_
</section>
_x000D_
In my particular case the function was actually missing. The error message is the same. I am using the Postgresql plugin PostGIS and I had to reinstall that for whatever reason.
It's easy to achieve this is to just use an Intent like this: (I put the method in a custom class that takes in an Activity as a parameter so it can be called from any Fragment or Activity)
public class UIutils {
private Activity mActivity;
public UIutils(Activity activity){
mActivity = activity;
}
public void showPhoto(Uri photoUri){
Intent intent = new Intent();
intent.setAction(Intent.ACTION_VIEW);
intent.setDataAndType(photoUri, "image/*");
mActivity.startActivity(intent);
}
}
Then to use it just do this:
imageView.setOnClickListener(v1 -> new UIutils(getActivity()).showPhoto(Uri.parse(imageURI)));
I use this with an Image URL but it can be used with stored files as well. If you are accessing images form the phones memory you should use a content provider.
None of the answers, including the checked one did not work for me.
The solution was far more simple. I first removed the references from my BUS layer. Then deleted the dll's from the project (to make sure it's gone), then reinstalled JSON.NET from nuget packeges. And, the tricky part was, "turning it off and on again".
I just restarted visual studio, and there it worked!
So, if you try everything possible and still can't solve the problem, just try turning visual studio off and on again, it might help.
public static class Helper
{
public static string AsJsonList<T>(List<T> tt)
{
return new JavaScriptSerializer().Serialize(tt);
}
public static string AsJson<T>(T t)
{
return new JavaScriptSerializer().Serialize(t);
}
public static List<T> AsObjectList<T>(string tt)
{
return new JavaScriptSerializer().Deserialize<List<T>>(tt);
}
public static T AsObject<T>(string t)
{
return new JavaScriptSerializer().Deserialize<T>(t);
}
}
Take IISReset as a suite of commands that helps you manage IIS start / stop etc.
Which means you need to specify option (/switch
) what you want to do to carry any operation.
Default behavior OR default switch is /restart
with iisreset
so you do not need to run command twice with /start
and /stop
.
Hope this clarifies your question. For reference the output of iisreset /?
is:
IISRESET.EXE (c) Microsoft Corp. 1998-2005 Usage: iisreset [computername] /RESTART Stop and then restart all Internet services. /START Start all Internet services. /STOP Stop all Internet services. /REBOOT Reboot the computer. /REBOOTONERROR Reboot the computer if an error occurs when starting, stopping, or restarting Internet services. /NOFORCE Do not forcefully terminate Internet services if attempting to stop them gracefully fails. /TIMEOUT:val Specify the timeout value ( in seconds ) to wait for a successful stop of Internet services. On expiration of this timeout the computer can be rebooted if the /REBOOTONERROR parameter is specified. The default value is 20s for restart, 60s for stop, and 0s for reboot. /STATUS Display the status of all Internet services. /ENABLE Enable restarting of Internet Services on the local system. /DISABLE Disable restarting of Internet Services on the local system.
Here are a variety of ways to do this in base R
including an alternative aggregate
approach. The examples below return means per month, which I think is what you requested. Although, the same approach could be used to return means per person:
Using ave
:
my.data <- read.table(text = '
Name Month Rate1 Rate2
Aira 1 12 23
Aira 2 18 73
Aira 3 19 45
Ben 1 53 19
Ben 2 22 87
Ben 3 19 45
Cat 1 22 87
Cat 2 67 43
Cat 3 45 32
', header = TRUE, stringsAsFactors = FALSE, na.strings = 'NA')
Rate1.mean <- with(my.data, ave(Rate1, Month, FUN = function(x) mean(x, na.rm = TRUE)))
Rate2.mean <- with(my.data, ave(Rate2, Month, FUN = function(x) mean(x, na.rm = TRUE)))
my.data <- data.frame(my.data, Rate1.mean, Rate2.mean)
my.data
Using by
:
my.data <- read.table(text = '
Name Month Rate1 Rate2
Aira 1 12 23
Aira 2 18 73
Aira 3 19 45
Ben 1 53 19
Ben 2 22 87
Ben 3 19 45
Cat 1 22 87
Cat 2 67 43
Cat 3 45 32
', header = TRUE, stringsAsFactors = FALSE, na.strings = 'NA')
by.month <- as.data.frame(do.call("rbind", by(my.data, my.data$Month, FUN = function(x) colMeans(x[,3:4]))))
colnames(by.month) <- c('Rate1.mean', 'Rate2.mean')
by.month <- cbind(Month = rownames(by.month), by.month)
my.data <- merge(my.data, by.month, by = 'Month')
my.data
Using lapply
and split
:
my.data <- read.table(text = '
Name Month Rate1 Rate2
Aira 1 12 23
Aira 2 18 73
Aira 3 19 45
Ben 1 53 19
Ben 2 22 87
Ben 3 19 45
Cat 1 22 87
Cat 2 67 43
Cat 3 45 32
', header = TRUE, stringsAsFactors = FALSE, na.strings = 'NA')
ly.mean <- lapply(split(my.data, my.data$Month), function(x) c(Mean = colMeans(x[,3:4])))
ly.mean <- as.data.frame(do.call("rbind", ly.mean))
ly.mean <- cbind(Month = rownames(ly.mean), ly.mean)
my.data <- merge(my.data, ly.mean, by = 'Month')
my.data
Using sapply
and split
:
my.data <- read.table(text = '
Name Month Rate1 Rate2
Aira 1 12 23
Aira 2 18 73
Aira 3 19 45
Ben 1 53 19
Ben 2 22 87
Ben 3 19 45
Cat 1 22 87
Cat 2 67 43
Cat 3 45 32
', header = TRUE, stringsAsFactors = FALSE, na.strings = 'NA')
my.data
sy.mean <- t(sapply(split(my.data, my.data$Month), function(x) colMeans(x[,3:4])))
colnames(sy.mean) <- c('Rate1.mean', 'Rate2.mean')
sy.mean <- data.frame(Month = rownames(sy.mean), sy.mean, stringsAsFactors = FALSE)
my.data <- merge(my.data, sy.mean, by = 'Month')
my.data
Using aggregate
:
my.data <- read.table(text = '
Name Month Rate1 Rate2
Aira 1 12 23
Aira 2 18 73
Aira 3 19 45
Ben 1 53 19
Ben 2 22 87
Ben 3 19 45
Cat 1 22 87
Cat 2 67 43
Cat 3 45 32
', header = TRUE, stringsAsFactors = FALSE, na.strings = 'NA')
my.summary <- with(my.data, aggregate(list(Rate1, Rate2), by = list(Month),
FUN = function(x) { mon.mean = mean(x, na.rm = TRUE) } ))
my.summary <- do.call(data.frame, my.summary)
colnames(my.summary) <- c('Month', 'Rate1.mean', 'Rate2.mean')
my.summary
my.data <- merge(my.data, my.summary, by = 'Month')
my.data
EDIT: June 28, 2020
Here I use aggregate
to obtain the column means
of an entire matrix
by group where group is defined in an external vector
:
my.group <- c(1,2,1,2,2,3,1,2,3,3)
my.data <- matrix(c( 1, 2, 3, 4, 5,
10, 20, 30, 40, 50,
2, 4, 6, 8, 10,
20, 30, 40, 50, 60,
20, 18, 16, 14, 12,
1000, 1100, 1200, 1300, 1400,
2, 3, 4, 3, 2,
50, 40, 30, 20, 10,
1001, 2001, 3001, 4001, 5001,
1000, 2000, 3000, 4000, 5000), nrow = 10, ncol = 5, byrow = TRUE)
my.data
my.summary <- aggregate(list(my.data), by = list(my.group), FUN = function(x) { my.mean = mean(x, na.rm = TRUE) } )
my.summary
# Group.1 X1 X2 X3 X4 X5
#1 1 1.666667 3.000 4.333333 5.000 5.666667
#2 2 25.000000 27.000 29.000000 31.000 33.000000
#3 3 1000.333333 1700.333 2400.333333 3100.333 3800.333333
Create a folder ${USER_HOME}/.mvn
and put a file called maven.config
in it.
The content should be:
-Dmaven.wagon.http.ssl.insecure=true
-Dmaven.wagon.http.ssl.allowall=true
-Dmaven.wagon.http.ssl.ignore.validity.dates=true
Hope this helps.
The connections I made in preparing this for posting really cleared it up for me, once and for all. It's not completely obvious what goes in the Main Class:
box until you see the connections. (Note that the class containing the main
method need not necessarily be named Main
but the main
method can have no other name.)
Well, it's fairly simple to do.
On the window resize event handler, calculate how much the window has grown/shrunk, and use that fraction to adjust 1) Height, 2) Width, 3) Canvas.Top, 4) Canvas.Left properties of all the child controls inside the canvas.
Here's the code:
private void window1_SizeChanged(object sender, SizeChangedEventArgs e)
{
myCanvas.Width = e.NewSize.Width;
myCanvas.Height = e.NewSize.Height;
double xChange = 1, yChange = 1;
if (e.PreviousSize.Width != 0)
xChange = (e.NewSize.Width/e.PreviousSize.Width);
if (e.PreviousSize.Height != 0)
yChange = (e.NewSize.Height / e.PreviousSize.Height);
foreach (FrameworkElement fe in myCanvas.Children )
{
/*because I didn't want to resize the grid I'm having inside the canvas in this particular instance. (doing that from xaml) */
if (fe is Grid == false)
{
fe.Height = fe.ActualHeight * yChange;
fe.Width = fe.ActualWidth * xChange;
Canvas.SetTop(fe, Canvas.GetTop(fe) * yChange);
Canvas.SetLeft(fe, Canvas.GetLeft(fe) * xChange);
}
}
}
If you use moment.js
the you need to load moment-with-locales.min.js
not moment.min.js
. Otherwise, your locale: 'ru'
will not work.
I finally understood the problem:
methodA() {
methodB()
}
@Transactional(noRollbackFor = Exception.class)
methodB() {
...
try {
methodC()
} catch (...) {...}
log("OK");
}
@Transactional
methodC() {
throw new ...();
}
What happens is that even though the methodB
has the right annotation, the methodC
does not. When the exception is thrown, the second @Transactional
marks the first transaction as Rollback only anyway.
If based on click here it is:
ng-click="orderReverse = orderReverse ? false : true"
OP here, I have learned a lot more about node since I first asked this question. Though Dmitry's answer was very helpful, what ultimately did it for me is to install node with the correct permissions.
I highly recommend not installing node using any package managers, but rather to compile it yourself so that it resides in a local directory with normal permissions.
This article provides a very clear step-by-step instruction of how to do so:
I was getting this error after adding the include files and linking the library. It was because the lib was built with non-unicode and my application was unicode. Matching them fixed it.
The following technique worked for me:
1) Right click on the project Solution -> Click on Clean solution
2) Right click on the project Solution -> Click on Rebuild solution
I wanted to be able to access my application with the HTML5 mode and a fixed token and then switch to the hashbang method (to keep the token so the user can refresh his page).
URL for accessing my app:
http://myapp.com/amazing_url?token=super_token
Then when the user loads the page:
http://myapp.com/amazing_url?token=super_token#/amazing_url
Then when the user navigates:
http://myapp.com/amazing_url?token=super_token#/another_url
With this I keep the token in the URL and keep the state when the user is browsing. I lost a bit of visibility of the URL, but there is no perfect way of doing it.
So don't enable the HTML5 mode and then add this controller:
.config ($stateProvider)->
$stateProvider.state('home-loading', {
url: '/',
controller: 'homeController'
})
.controller 'homeController', ($state, $location)->
if window.location.pathname != '/'
$location.url(window.location.pathname+window.location.search).replace()
else
$state.go('home', {}, { location: 'replace' })
Try this MSDN blog
Also, try the following example:
Xaml:
<DataGrid AutoGenerateColumns="False" Name="DataGridTest" CanUserAddRows="True" ItemsSource="{Binding TestBinding}" Margin="0,50,0,0" >
<DataGrid.Columns>
<DataGridTextColumn Header="Line" IsReadOnly="True" Binding="{Binding Path=Test1}" Width="50"></DataGridTextColumn>
<DataGridTextColumn Header="Account" IsReadOnly="True" Binding="{Binding Path=Test2}" Width="130"></DataGridTextColumn>
</DataGrid.Columns>
</DataGrid>
<Button Content="Add new row" HorizontalAlignment="Left" Margin="0,10,0,0" VerticalAlignment="Top" Width="75" Click="Button_Click_1"/>
CS:
/// <summary>
/// Interaction logic for MainWindow.xaml
/// </summary>
public partial class MainWindow : Window
{
public MainWindow()
{
InitializeComponent();
}
private void Button_Click_1(object sender, RoutedEventArgs e)
{
var data = new Test { Test1 = "Test1", Test2 = "Test2" };
DataGridTest.Items.Add(data);
}
}
public class Test
{
public string Test1 { get; set; }
public string Test2 { get; set; }
}
I think this question has a contextual component.
If you're simply pulling data from a service & radiating that information to it's view, I think binding directly to the service property is just fine. I don't want to write a lot of boilerplate code to simply map service properties to model properties to consume in my view.
Further, performance in angular is based on two things. The first is how many bindings are on a page. The second is how expensive getter functions are. Misko talks about this here
If you need to perform instance specific logic on the service data (as opposed to data massaging applied within the service itself), and the outcome of this impacts the data model exposed to the view, then I would say a $watcher is appropriate, as long as the function isn't terribly expensive. In the case of an expensive function, I would suggest caching the results in a local (to controller) variable, performing your complex operations outside of the $watcher function, and then binding your scope to the result of that.
As a caveat, you shouldn't be hanging any properties directly off your $scope. The $scope
variable is NOT your model. It has references to your model.
In my mind, "best practice" for simply radiating information from service down to view:
function TimerCtrl1($scope, Timer) {
$scope.model = {timerData: Timer.data};
};
And then your view would contain {{model.timerData.lastupdated}}
.
If anyone like me is searching to read only a specific line, example only line 18 here is the code:
filename = "C:\log.log"
Set fso = CreateObject("Scripting.FileSystemObject")
Set f = fso.OpenTextFile(filename)
For i = 1 to 17
f.ReadLine
Next
strLine = f.ReadLine
Wscript.Echo strLine
f.Close
You can decide to use a public observable list to store public data, or just create a public setter method to store data and retrieve from the corresponding controller
Just a speculation, I have not enough experience to try it... )-:
Since GoogleMap is a fragment, it should be possible to catch marker onClick event and show custom fragment view. A map fragment will be still visible on the background. Does anybody tried it? Any reason why it could not work?
The disadvantage is that map fragment would be freezed on backgroud, until a custom info fragment return control to it.
I tried the following three methods, my file size is 1M, and I got results:
I run the program several times it looks that BufferedReader is faster.
@Test
public void testLargeFileIO_Scanner() throws Exception {
long start = new Date().getTime();
String fileName = "/Downloads/SampleTextFile_1000kb.txt"; //this path is on my local
InputStream inputStream = new FileInputStream(fileName);
try (Scanner fileScanner = new Scanner(inputStream, StandardCharsets.UTF_8.name())) {
while (fileScanner.hasNextLine()) {
String line = fileScanner.nextLine();
//System.out.println(line);
}
}
long end = new Date().getTime();
long time = end - start;
System.out.println("Scanner Time Consumed => " + time);
}
@Test
public void testLargeFileIO_BufferedReader() throws Exception {
long start = new Date().getTime();
String fileName = "/Downloads/SampleTextFile_1000kb.txt"; //this path is on my local
try (BufferedReader fileBufferReader = new BufferedReader(new FileReader(fileName))) {
String fileLineContent;
while ((fileLineContent = fileBufferReader.readLine()) != null) {
//System.out.println(fileLineContent);
}
}
long end = new Date().getTime();
long time = (long) (end - start);
System.out.println("BufferedReader Time Consumed => " + time);
}
@Test
public void testLargeFileIO_Stream() throws Exception {
long start = new Date().getTime();
String fileName = "/Downloads/SampleTextFile_1000kb.txt"; //this path is on my local
try (Stream inputStream = Files.lines(Paths.get(fileName), StandardCharsets.UTF_8)) {
//inputStream.forEach(System.out::println);
}
long end = new Date().getTime();
long time = end - start;
System.out.println("Stream Time Consumed => " + time);
}
I found your question because I was also fighting with NSAttributedString.
For me, the beginEditing
and endEditing
methods did the trick, like stated in Changing an Attributed String.
Apart from that, the lineSpacing is set with setLineSpacing
on the paragraphStyle.
So you might want to try changing your code to:
NSString *string = @" Hello \n world";
attrString = [[NSMutableAttributedString alloc] initWithString:string];
NSMutableParagraphStyle *paragraphStyle = [[NSMutableParagraphStyle defaultParagraphStyle] mutableCopy];
[paragraphStyle setLineSpacing:20] // Or whatever (positive) value you like...
[attrSting beginEditing];
[attrString addAttribute:NSFontAttributeName value:[UIFont boldSystemFontOfSize:20] range:NSMakeRange(0, string.length)];
[attrString addAttribute:NSParagraphStyleAttributeName value:paragraphStyle range:NSMakeRange(0, string.length)];
[attrString endEditing];
mainTextView.attributedText = attrString;
Didn't test this exact code though, btw, but mine looks nearly the same.
Meanwhile, I've tested it, and, correct me if I'm wrong, the - beginEditing
and - endEditing
calls seem to be of quite an importance.
you can't use VALUES
clause when inserting data using another SELECT
query. see INSERT SYNTAX
INSERT INTO user
(
id, name, username, email, opted_in
)
(
SELECT id, name, username, email, opted_in
FROM user
LEFT JOIN user_permission AS userPerm
ON user.id = userPerm.user_id
);
josh3736's answer is a good one, but to provide a counterpoint 3 years later:
I recommend using rem
units for fonts, if only because it makes it easier for you, the developer, to change sizes. It's true that users very rarely change the default font size in their browsers, and that modern browser zoom will scale up px
units. But what if your boss comes to you and says "don't enlarge the images or icons, but make all the fonts bigger". It's much easier to just change the root font size and let all the other fonts scale relative to that, then to change px
sizes in dozens or hundreds of css rules.
I think it still makes sense to use px
units for some images, or for certain layout elements that should always be the same size regardless of the scale of the design.
Caniuse.com may have said that only 75% of browsers when josh3736 posted his answer in 2012, but as of March 27 they claim 93.78% support. Only IE8 doesn't support it among the browsers they track.
Just an addition to what others have given, even though they work well but in some cases if internet is slow or some unknown network problem exists, some of the codes won't work (isReachable()
). But this code mentioned below creates a process which acts as a command line ping (cmd ping) to windows. It works for me in all cases, tried and tested.
Code :-
public class JavaPingApp {
public static void runSystemCommand(String command) {
try {
Process p = Runtime.getRuntime().exec(command);
BufferedReader inputStream = new BufferedReader(
new InputStreamReader(p.getInputStream()));
String s = "";
// reading output stream of the command
while ((s = inputStream.readLine()) != null) {
System.out.println(s);
}
} catch (Exception e) {
e.printStackTrace();
}
}
public static void main(String[] args) {
String ip = "stackoverflow.com"; //Any IP Address on your network / Web
runSystemCommand("ping " + ip);
}
}
Hope it helps, Cheers!!!
When you type integer numbers to JtextField1 after key release it will go to inside try , for any other character it will throw NumberFormatException. If you set empty string to jTextField1 inside the catch so the user cannot type any other keys except positive numbers because JTextField1 will be cleared for each bad attempt.
//Fields
int x;
JTextField jTextField1;
//Gui Code Here
private void jTextField1KeyReleased(java.awt.event.KeyEvent evt) {
try {
x = Integer.parseInt(jTextField1.getText());
} catch (NumberFormatException nfe) {
jTextField1.setText("");
}
}
Create a new MVC 4 RC internet application and run it. Navigate to Login which uses the same code
@section Scripts {
@Scripts.Render("~/bundles/jqueryval")
}
What allows Login.cshtml to work is the the Views\Web.config file (not the app root version) contains
<namespaces>
<add namespace="System.Web.Optimization"/>
</namespaces>
Why is your Create view not working and Login is?
I just had this issue building react-native app when I try to install Pod. I had to export 2 variables:
export CC=/Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/cc
CPP='/Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/cc -E'
For INNER
joins, no, the order doesn't matter. The queries will return same results, as long as you change your selects from SELECT *
to SELECT a.*, b.*, c.*
.
For (LEFT
, RIGHT
or FULL
) OUTER
joins, yes, the order matters - and (updated) things are much more complicated.
First, outer joins are not commutative, so a LEFT JOIN b
is not the same as b LEFT JOIN a
Outer joins are not associative either, so in your examples which involve both (commutativity and associativity) properties:
a LEFT JOIN b
ON b.ab_id = a.ab_id
LEFT JOIN c
ON c.ac_id = a.ac_id
is equivalent to:
a LEFT JOIN c
ON c.ac_id = a.ac_id
LEFT JOIN b
ON b.ab_id = a.ab_id
but:
a LEFT JOIN b
ON b.ab_id = a.ab_id
LEFT JOIN c
ON c.ac_id = a.ac_id
AND c.bc_id = b.bc_id
is not equivalent to:
a LEFT JOIN c
ON c.ac_id = a.ac_id
LEFT JOIN b
ON b.ab_id = a.ab_id
AND b.bc_id = c.bc_id
Another (hopefully simpler) associativity example. Think of this as (a LEFT JOIN b) LEFT JOIN c
:
a LEFT JOIN b
ON b.ab_id = a.ab_id -- AB condition
LEFT JOIN c
ON c.bc_id = b.bc_id -- BC condition
This is equivalent to a LEFT JOIN (b LEFT JOIN c)
:
a LEFT JOIN
b LEFT JOIN c
ON c.bc_id = b.bc_id -- BC condition
ON b.ab_id = a.ab_id -- AB condition
only because we have "nice" ON
conditions. Both ON b.ab_id = a.ab_id
and c.bc_id = b.bc_id
are equality checks and do not involve NULL
comparisons.
You can even have conditions with other operators or more complex ones like: ON a.x <= b.x
or ON a.x = 7
or ON a.x LIKE b.x
or ON (a.x, a.y) = (b.x, b.y)
and the two queries would still be equivalent.
If however, any of these involved IS NULL
or a function that is related to nulls like COALESCE()
, for example if the condition was b.ab_id IS NULL
, then the two queries would not be equivalent.
Sum of total_vm
is 847170 and sum of rss
is 214726, these two values are counted in 4kB pages, which means when oom-killer was running, you had used 214726*4kB=858904kB physical memory and swap space.
Since your physical memory is 1GB and ~200MB was used for memory mapping, it's reasonable for invoking oom-killer when 858904kB was used.
rss
for process 2603 is 181503, which means 181503*4KB=726012 rss, was equal to sum of anon-rss
and file-rss
.
[11686.043647] Killed process 2603 (flasherav) total-vm:1498536kB, anon-rss:721784kB, file-rss:4228kB
thisReader.GetString(int columnIndex)
git fetch origin
git reset --hard origin/master
git pull
Explanation:
See documentation at http://git-scm.com/docs.
Binding="{Binding YourColumn ,StringFormat='yyyy-MM-dd'}"
The solution was to use getChildFragmentManager()
instead of getFragmentManager()
when calling from a fragment. If you are calling the method from an activity, then use getFragmentManager()
.
That will solve the problem.
my code is:
function(s){
s = {
top: s.top || 100, // default value or s.top
left: s.left || 300, // default value or s.left
}
alert(s.top)
}
Yes. You just have to use the RAISE_APPLICATION_ERROR
function. If you also want to name your exception, you'll need to use the EXCEPTION_INIT
pragma in order to associate the error number to the named exception. Something like
SQL> ed
Wrote file afiedt.buf
1 declare
2 ex_custom EXCEPTION;
3 PRAGMA EXCEPTION_INIT( ex_custom, -20001 );
4 begin
5 raise_application_error( -20001, 'This is a custom error' );
6 exception
7 when ex_custom
8 then
9 dbms_output.put_line( sqlerrm );
10* end;
SQL> /
ORA-20001: This is a custom error
PL/SQL procedure successfully completed.
Pretty much the same as other snippets on this page but just organizing things up over an function, here we go...
String str=shell_exec("ls -l");
The Class function:
public String shell_exec(String cmd)
{
String o=null;
try
{
Process p=Runtime.getRuntime().exec(cmd);
BufferedReader b=new BufferedReader(new InputStreamReader(p.getInputStream()));
String r;
while((r=b.readLine())!=null)o+=r;
}catch(Exception e){o="error";}
return o;
}
import java.io.IOException;
import java.lang.ProcessBuilder;
public class handlingexe {
public static void main(String[] args) throws IOException {
ProcessBuilder p = new ProcessBuilder();
System.out.println("Started EXE");
p.command("C:\\Users\\AppData\\Local\\Google\\Chrome\\Application\\chrome.exe");
p.start();
System.out.println("Started EXE");
}
}
If you are interested in getting the JVM parameters of a running java process, then just do kill -3 java-pid. You will get a core dump file in which you can find the jvm parameters used while launching the java application.
The source code for the Android mobile application open-gpstracker which you appreciated is available here.
You can checkout the code using SVN client application or via Git:
Debugging the source code will surely help you.
You're using S_ISREG()
and S_ISDIR()
correctly, you're just using them on the wrong thing.
In your while((dit = readdir(dip)) != NULL)
loop in main
, you're calling stat
on currentPath
over and over again without changing currentPath
:
if(stat(currentPath, &statbuf) == -1) {
perror("stat");
return errno;
}
Shouldn't you be appending a slash and dit->d_name
to currentPath
to get the full path to the file that you want to stat
? Methinks that similar changes to your other stat
calls are also needed.
You can also integrate it with any 3rd-party libraries which makes use of JQuery.
One such library is Backbone, which is actually going to support Deferred in their next version.
Another situation that can cause this problem is if your code calls into C++, or is called by C++ code. I had a problem with my own .c file's utility function showing up as "symbol not found" when called from Obj-C. The fix was to change the file type: in Xcode 4, use the extended info pane to set the file type to "Objective-C++ Source"; in Xcode 3, use "Get Info" to change file type to "source.cpp.objcpp".
I am New to Jackson API, when i got the "org.codehaus.jackson.map.JsonMappingException: No serializer found for class com.company.project.yourclass" , I added the getter and setter to com.company.project.yourclass, that helped me to use the ObjectMapper's mapper object to write the java object into a flat file.
Note: You don't need to check if your service is running, CheckIfServiceIsRunning()
, because bindService()
will start it if it isn't running.
Also: if you rotate the phone you don't want it to bindService()
again, because onCreate()
will be called again. Be sure to define onConfigurationChanged()
to prevent this.
This is generic code for configuration collection :
public class GenericConfigurationElementCollection<T> : ConfigurationElementCollection, IEnumerable<T> where T : ConfigurationElement, new()
{
List<T> _elements = new List<T>();
protected override ConfigurationElement CreateNewElement()
{
T newElement = new T();
_elements.Add(newElement);
return newElement;
}
protected override object GetElementKey(ConfigurationElement element)
{
return _elements.Find(e => e.Equals(element));
}
public new IEnumerator<T> GetEnumerator()
{
return _elements.GetEnumerator();
}
}
After you have GenericConfigurationElementCollection
,
you can simple use it in the config section (this is an example from my Dispatcher):
public class DispatcherConfigurationSection: ConfigurationSection
{
[ConfigurationProperty("maxRetry", IsRequired = false, DefaultValue = 5)]
public int MaxRetry
{
get
{
return (int)this["maxRetry"];
}
set
{
this["maxRetry"] = value;
}
}
[ConfigurationProperty("eventsDispatches", IsRequired = true)]
[ConfigurationCollection(typeof(EventsDispatchConfigurationElement), AddItemName = "add", ClearItemsName = "clear", RemoveItemName = "remove")]
public GenericConfigurationElementCollection<EventsDispatchConfigurationElement> EventsDispatches
{
get { return (GenericConfigurationElementCollection<EventsDispatchConfigurationElement>)this["eventsDispatches"]; }
}
}
The Config Element is config Here:
public class EventsDispatchConfigurationElement : ConfigurationElement
{
[ConfigurationProperty("name", IsRequired = true)]
public string Name
{
get
{
return (string) this["name"];
}
set
{
this["name"] = value;
}
}
}
The config file would look like this:
<?xml version="1.0" encoding="utf-8" ?>
<dispatcherConfigurationSection>
<eventsDispatches>
<add name="Log" ></add>
<add name="Notification" ></add>
<add name="tester" ></add>
</eventsDispatches>
</dispatcherConfigurationSection>
Hope it help !
function array_2_csv($array) {
$csv = array();
foreach ($array as $item) {
if (is_array($item)) {
$csv[] = array_2_csv($item);
} else {
$csv[] = $item;
}
}
return implode(',', $csv);
}
$csv_data = array_2_csv($array);
echo "<pre>";
print_r($csv_data);
echo '</pre>' ;
I agree with others who recommend using break
. The obvious consequential question is why would anyone recommend otherwise? Well... when you use break, you skip the rest of the code in the block, and the remaining iterations. Sometimes this causes bugs, for example:
a resource acquired at the top of the block may be released at the bottom (this is true even for blocks inside for
loops), but that release step may be accidentally skipped when a "premature" exit is caused by a break
statement (in "modern" C++, "RAII" is used to handle this in a reliable and exception-safe way: basically, object destructors free resources reliably no matter how a scope is exited)
someone may change the conditional test in the for
statement without noticing that there are other delocalised exit conditions
ndim's answer observes that some people may avoid break
s to maintain a relatively consistent loop run-time, but you were comparing break
against use of a boolean early-exit control variable where that doesn't hold
Every now and then people observing such bugs realise they can be prevented/mitigated by this "no breaks" rule... indeed, there's a whole related strategy for "safer" programming called "structured programming", where each function is supposed to have a single entry and exit point too (i.e. no goto, no early return). It may eliminate some bugs, but it doubtless introduces others. Why do they do it?
Use this Code: this method works on 4.3+ and also for below versions too.
try {
Process process = null;
if(Build.VERSION.SDK_INT <= 16) {
// shiny APIS
process = Runtime.getRuntime().exec(
"/system/bin/ping -w 1 -c 1 " + url);
}
else
{
process = new ProcessBuilder()
.command("/system/bin/ping", url)
.redirectErrorStream(true)
.start();
}
BufferedReader reader = new BufferedReader(new InputStreamReader(
process.getInputStream()));
StringBuffer output = new StringBuffer();
String temp;
while ( (temp = reader.readLine()) != null)//.read(buffer)) > 0)
{
output.append(temp);
count++;
}
reader.close();
if(count > 0)
str = output.toString();
process.destroy();
} catch (IOException e) {
e.printStackTrace();
}
Log.i("PING Count", ""+count);
Log.i("PING String", str);
To account for milliseconds and the user's time zone, use the following:
var _userOffset = _date.getTimezoneOffset()*60*1000; // user's offset time
var _centralOffset = 6*60*60*1000; // 6 for central time - use whatever you need
_date = new Date(_date.getTime() - _userOffset + _centralOffset); // redefine variable
One can also checkout all files from the other branch into master:
git checkout master
git checkout better_branch -- .
and then commit all changes.
I was asking the same to myself, and I found the answer in 1:
Take a look at section 8.1.7: the format "%z" (lowercase, the Z uppercase returns also the time zone, but not in the 4-digit format, but in the form of timezone abbreviations, like in [3]) of strftime returns the form "+/- 4DIGIT" that is standard in email headers (see section 3.3 of RFC 2822, see [2], which obsoletes the other ways of specifying the timezone for email headers).
So, if you want your timezone in this format, use:
time.strftime("%z")
[1] http://docs.python.org/2/library/datetime.html
[2] http://tools.ietf.org/html/rfc2822#section-3.3
[3] Timezone abbreviations: http://en.wikipedia.org/wiki/List_of_time_zone_abbreviations , only for reference.
I had the same problem - lost lot's of time trying to get debugging working in Visual Studio.
It ended up being Nuget - I had 3 versions of Newtonsoft.Json (across 7 C# projects). The solution would compile but wasn't debuggable.
I fixed the issue by running the following in Nuget's Package Manager Console:
PM> Update-Package Newtonsoft.Json
I just discovered that there is a cleaner way to do your
new Thread(new Runnable() {
public void run() {
//Do whatever
}
}).start();
(At least in Java 8), you can use a lambda expression to shorten it to:
new Thread(() -> {
//Do whatever
}).start();
As simple as making a function in JS!
A simple and straightforward solution:
Use a standard for-loop running backwards on your collection and RemoveAt(i)
to remove elements.
Following is the code from my Utils
class:
public static boolean isNetworkAvailable(Context context) {
ConnectivityManager connectivityManager
= (ConnectivityManager) context.getSystemService(Context.CONNECTIVITY_SERVICE);
NetworkInfo activeNetworkInfo = connectivityManager.getActiveNetworkInfo();
return activeNetworkInfo != null && activeNetworkInfo.isConnected();
}
Instead of an ObservableCollection or TrulyObservableCollection, consider using a BindingList and calling the ResetBindings method.
For example:
private BindingList<TfsFile> _tfsFiles;
public BindingList<TfsFile> TfsFiles
{
get { return _tfsFiles; }
set
{
_tfsFiles = value;
NotifyPropertyChanged();
}
}
Given an event, such as a click your code would look like this:
foreach (var file in TfsFiles)
{
SelectedFile = file;
file.Name = "Different Text";
TfsFiles.ResetBindings();
}
My model looked like this:
namespace Models
{
public class TfsFile
{
public string ImagePath { get; set; }
public string FullPath { get; set; }
public string Name { get; set; }
public string Text { get; set; }
}
}
Use FirstOrDefault insted of SingleOrDefault..
SingleOrDefault returns a SINGLE element or null if no element is found. If 2 elements are found in your Enumerable then it throws the exception you are seeing
FirstOrDefault returns the FIRST element it finds or null if no element is found. so if there are 2 elements that match your predicate the second one is ignored
public int GetPackage(int id,int emp)
{
int getpackages=Convert.ToInt32(EmployerSubscriptionPackage.GetAllData().Where(x
=> x.SubscriptionPackageID ==`enter code here` id && x.EmployerID==emp ).FirstOrDefault().ID);
return getpackages;
}
1. var EmployerId = Convert.ToInt32(Session["EmployerId"]);
var getpackage = GetPackage(employerSubscription.ID, EmployerId);
Don't know if this is relevant to XAML, but in my simple Windows app I created the binding manually and added a Format event handler.
public FormMain() {
InitializeComponent();
Binding argBinding = new Binding("Enabled", uxCheckBoxArgsNull, "Checked", false, DataSourceUpdateMode.OnPropertyChanged);
argBinding.Format += new ConvertEventHandler(Binding_Format_BooleanInverse);
uxTextBoxArgs.DataBindings.Add(argBinding);
}
void Binding_Format_BooleanInverse(object sender, ConvertEventArgs e) {
bool boolValue = (bool)e.Value;
e.Value = !boolValue;
}
As I got the 500.19, I gave IIS_IUSRS
full access rights for the mentioned web.config and for the folder of the project. This solved the issue.
You can give permissions by
IIS_IUSRS
- don't forget the i in front of USRS and don't write an "e" as in USERSSpreading the tasks evenly, in short optimizing each and every aspect including DBs, Files, Images, CSS etc. and balancing the load with several other resources is necessary once your site/application starts growing. OR you make some more space for it to grow. Implementation of latest technologies like CDN, Cloud are must with huge sites. Just developing and tweaking an application won't give your the cent percent satisfation, other components also play an important role.
Make sure that the table you are returning has a schema. If not, then create a default schema (i.e. add a column in that table).
This is how I do this in order to work with LINQ.
DateTime date_time_to_compare = DateTime.Now;
//Compare only date parts
context.YourObject.FirstOrDefault(r =>
EntityFunctions.TruncateTime(r.date) == EntityFunctions.TruncateTime(date_to_compare));
If you only use dtOne.Date == dtTwo.Date
it wont work with LINQ (Error: The specified type member 'Date' is not supported in LINQ to Entities)
You will need something more that a http request to interact with a WCF service UNLESS your WCF service has a REST interface. Either look for a SOAP web service API that runs on android or make your service RESTful. You will need .NET 3.5 SP1 to do WCF REST services:
If you want speed, given that your integers are of finite size, I suspect that the quickest way would involve (a) partitioning the parameters by size (e.g. into categories by largest bit set), then checking the value against an array of perfect squares within that range.
Try CountDownLatch class out of the java.util.concurrent
package, which provides higher level synchronization mechanisms, that are far less error prone than any of the low level stuff.
Editing the web.config
file or updating a DLL in the bin
folder just recycles the worker process for that application, not the whole pool.
Two native solutions
performance.now
--> Call to ... took 6.414999981643632
milliseconds.console.time
--> Call to ... took 5.815
millisecondsThe difference between both is precision.
For usage and explanation read on.
Performance.now
(For microsecond precision use)
var t0 = performance.now();
doSomething();
var t1 = performance.now();
console.log("Call to doSomething took " + (t1 - t0) + " milliseconds.");
function doSomething(){
for(i=0;i<1000000;i++){var x = i*i;}
}
_x000D_
Unlike other timing data available to JavaScript (for example Date.now), the timestamps returned by Performance.now() are not limited to one-millisecond resolution. Instead, they represent times as floating-point numbers with up to microsecond precision.
Also unlike Date.now(), the values returned by Performance.now() always increase at a constant rate, independent of the system clock (which might be adjusted manually or skewed by software like NTP). Otherwise, performance.timing.navigationStart + performance.now() will be approximately equal to Date.now().
console.time
Example: (timeEnd
wrapped in setTimeout
for simulation)
console.time('Search page');
doSomething();
console.timeEnd('Search page');
function doSomething(){
for(i=0;i<1000000;i++){var x = i*i;}
}
_x000D_
You can change the Timer-Name for different operations.
You can't pass a parameter in a @selector().
It looks like you're trying to implement a callback. The best way to do that would be something like this:
[object setCallbackObject:self withSelector:@selector(myMethod:)];
Then in your object's setCallbackObject:withSelector: method: you can call your callback method.
-(void)setCallbackObject:(id)anObject withSelector:(SEL)selector {
[anObject performSelector:selector];
}
Assuming the MyEjbProject is not another Maven Project you own or want to build with maven, you could use system dependencies to link to the existing jar file of the project like so
<project>
...
<dependencies>
<dependency>
<groupId>yourgroup</groupId>
<artifactId>myejbproject</artifactId>
<version>2.0</version>
<scope>system</scope>
<systemPath>path/to/myejbproject.jar</systemPath>
</dependency>
</dependencies>
...
</project>
That said it is usually the better (and preferred way) to install the package to the repository either by making it a maven project and building it or installing it the way you already seem to do.
If they are, however, dependent on each other, you can always create a separate parent project (has to be a "pom" project) declaring the two other projects as its "modules". (The child projects would not have to declare the third project as their parent). As a consequence you'd get a new directory for the new parent project, where you'd also quite probably put the two independent projects like this:
parent
|- pom.xml
|- MyEJBProject
| `- pom.xml
`- MyWarProject
`- pom.xml
The parent project would get a "modules" section to name all the child modules. The aggregator would then use the dependencies in the child modules to actually find out the order in which the projects are to be built)
<project>
...
<artifactId>myparentproject</artifactId>
<groupId>...</groupId>
<version>...</version>
<packaging>pom</packaging>
...
<modules>
<module>MyEJBModule</module>
<module>MyWarModule</module>
</modules>
...
</project>
That way the projects can relate to each other but (once they are installed in the local repository) still be used independently as artifacts in other projects
Finally, if your projects are not in related directories, you might try to give them as relative modules:
filesystem
|- mywarproject
| `pom.xml
|- myejbproject
| `pom.xml
`- parent
`pom.xml
now you could just do this (worked in maven 2, just tried it):
<!--parent-->
<project>
<modules>
<module>../mywarproject</module>
<module>../myejbproject</module>
</modules>
</project>
Linker errors can happen when a header file and its associated shared library (.lib file) go out of sync. Let me explain.
How do linkers work? The linker matches a function declaration (declared in the header) with its definition (in the shared library) by comparing their signatures. You can get a linker error if the linker doesn't find a function definition that matches perfectly.
Is it possible to still get a linker error even though the declaration and the definition seem to match? Yes! They might look the same in source code, but it really depends on what the compiler sees. Essentially you could end up with a situation like this:
// header1.h
typedef int Number;
void foo(Number);
// header2.h
typedef float Number;
void foo(Number); // this only looks the same lexically
Note how even though both the function declarations look identical in source code, but they are really different according to the compiler.
You might ask how one ends up in a situation like that? Include paths of course! If when compiling the shared library, the include path leads to header1.h
and you end up using header2.h
in your own program, you'll be left scratching your header wondering what happened (pun intended).
An example of how this can happen in the real world is explained below.
I have two projects: graphics.lib
and main.exe
. Both projects depend on common_math.h
. Suppose the library exports the following function:
// graphics.lib
#include "common_math.h"
void draw(vec3 p) { ... } // vec3 comes from common_math.h
And then you go ahead and include the library in your own project.
// main.exe
#include "other/common_math.h"
#include "graphics.h"
int main() {
draw(...);
}
Boom! You get a linker error and you have no idea why it's failing. The reason is that the common library uses different versions of the same include common_math.h
(I have made it obvious here in the example by including a different path, but it might not always be so obvious. Maybe the include path is different in the compiler settings).
Note in this example, the linker would tell you it couldn't find draw()
, when in reality you know it obviously is being exported by the library. You could spend hours scratching your head wondering what went wrong. The thing is, the linker sees a different signature because the parameter types are slightly different. In the example, vec3
is a different type in both projects as far as the compiler is concerned. This could happen because they come from two slightly different include files (maybe the include files come from two different versions of the library).
DUMPBIN is your friend, if you are using Visual Studio. I'm sure other compilers have other similar tools.
The process goes like this:
[1] By project I mean a set of source files that are linked together to produce either a library or an executable.
EDIT 1: Rewrote first section to be easier to understand. Please comment below to let me know if something else needs to be fixed. Thanks!
The gem that makes it all too easy to obtain the result as a string (in today's numpy versions) is hidden in denis answer:
np.array2string
>>> import numpy as np
>>> x=np.random.random(10)
>>> np.array2string(x, formatter={'float_kind':'{0:.3f}'.format})
'[0.599 0.847 0.513 0.155 0.844 0.753 0.920 0.797 0.427 0.420]'
string test = "abcdxxx";
test = test.Remove(test.Length - 3);
//output : abcd
Try this :)
<script type="text/javascript" src="http://www.google.com/jsapi"></script>
<script type="text/javascript">
function initialize() {
var loc = {};
var geocoder = new google.maps.Geocoder();
if(google.loader.ClientLocation) {
loc.lat = google.loader.ClientLocation.latitude;
loc.lng = google.loader.ClientLocation.longitude;
var latlng = new google.maps.LatLng(loc.lat, loc.lng);
geocoder.geocode({'latLng': latlng}, function(results, status) {
if(status == google.maps.GeocoderStatus.OK) {
alert(results[0]['formatted_address']);
};
});
}
}
google.load("maps", "3.x", {other_params: "sensor=false", callback:initialize});
</script>
You can also use a callable in the default field, such as:
b = models.CharField(max_length=7, default=foo)
And then define the callable:
def foo():
return 'bar'
In 2017, the thing closest to Javadoc would probably DocFx which was developed by Microsoft and comes as a Commmand-Line-Tool as well as a VS2017 plugin.
It's still a little rough around the edges but it looks promising.
Another alternative would be Wyam which has a documentation recipe suitable for net aplications. Look at the cake documentation for an example.
I had to modify Lars' answer a bit, as an orphaned \
ended up in the regex, to only compare the actual host (not paying attention to the protocol or port) and I wanted to support localhost
domain besides my production domain. Thus I changed the $allowed
parameter to be an array.
function getCORSHeaderOrigin($allowed, $input)
{
if ($allowed == '*') {
return '*';
}
if (!is_array($allowed)) {
$allowed = array($allowed);
}
foreach ($allowed as &$value) {
$value = preg_quote($value, '/');
if (($wildcardPos = strpos($value, '\*')) !== false) {
$value = str_replace('\*', '(.*)', $value);
}
}
$regexp = '/^(' . implode('|', $allowed) . ')$/';
$inputHost = parse_url($input, PHP_URL_HOST);
if ($inputHost === null || !preg_match($regexp, $inputHost, $matches)) {
return 'none';
}
return $input;
}
Usage as follows:
if (isset($_SERVER['HTTP_ORIGIN'])) {
header("Access-Control-Allow-Origin: " . getCORSHeaderOrigin(array("*.myproduction.com", "localhost"), $_SERVER['HTTP_ORIGIN']));
}
Just Go To *Startmenu >>Java >>Configure Java >> Security >> Edit site list >> copy and paste your Link with problem >> OK Problem fixed :)*
If you wish to have an Array in which you will not be allocating all of the elements, you will have to do your own bookkeeping to ensure how many elements you have placed in it via some other variable. If you'd like to avoid doing this while also getting an "Array" that can grow capacities after its initial instantiation, you can create an ArrayList
ArrayList<Integer> theArray = new ArrayList<Integer>();
theArray.add(5); // places at index 0
theArray.size(); // returns length of 1
int answer = theArray.get(0); // index 0 = 5
Don't forget to import it at the top of the file:
import java.util.ArrayList;
for china GFW:
sudo iptables -I INPUT -s 173.194.0.0/16 -p tcp --tcp-flags RST RST -j DROP
sudo iptables -I INPUT -s 173.194.0.0/16 -p tcp --tcp-flags RST RST -j LOG --log-prefix "drop rst"
sudo iptables -I INPUT -s 64.233.0.0/16 -p tcp --tcp-flags RST RST -j DROP
sudo iptables -I INPUT -s 64.233.0.0/16 -p tcp --tcp-flags RST RST -j LOG --log-prefix "drop rst"
sudo iptables -I INPUT -s 74.125.0.0/16 -p tcp --tcp-flags RST RST -j DROP
sudo iptables -I INPUT -s 74.125.0.0/16 -p tcp --tcp-flags RST RST -j LOG --log-prefix "drop rst"
use this code for normal div
display: inline;
use this code if u use it in table
display: inline-table;
better than table
__func__
is an implicitly declared identifier that expands to a character array variable containing the function name when it is used inside of a function. It was added to C in C99. From C99 §6.4.2.2/1:
The identifier
__func__
is implicitly declared by the translator as if, immediately following the opening brace of each function definition, the declarationstatic const char __func__[] = "function-name";
appeared, where function-name is the name of the lexically-enclosing function. This name is the unadorned name of the function.
Note that it is not a macro and it has no special meaning during preprocessing.
__func__
was added to C++ in C++11, where it is specified as containing "an implementation-de?ned string" (C++11 §8.4.1[dcl.fct.def.general]/8), which is not quite as useful as the specification in C. (The original proposal to add __func__
to C++ was N1642).
__FUNCTION__
is a pre-standard extension that some C compilers support (including gcc and Visual C++); in general, you should use __func__
where it is supported and only use __FUNCTION__
if you are using a compiler that does not support it (for example, Visual C++, which does not support C99 and does not yet support all of C++0x, does not provide __func__
).
__PRETTY_FUNCTION__
is a gcc extension that is mostly the same as __FUNCTION__
, except that for C++ functions it contains the "pretty" name of the function including the signature of the function. Visual C++ has a similar (but not quite identical) extension, __FUNCSIG__
.
For the nonstandard macros, you will want to consult your compiler's documentation. The Visual C++ extensions are included in the MSDN documentation of the C++ compiler's "Predefined Macros". The gcc documentation extensions are described in the gcc documentation page "Function Names as Strings."
In Bootstrap 4 (beta), use align-middle
. Refer to Bootstrap 4 Documentation on Vertical alignment:
Change the alignment of elements with the vertical-alignment utilities. Please note that vertical-align only affects inline, inline-block, inline-table, and table cell elements.
Choose from
.align-baseline
,.align-top
,.align-middle
,.align-bottom
,.align-text-bottom
, and.align-text-top
as needed.
You can use this code snipped to show text with ellipsis
Text(
"Introduction to Very very very long text",
maxLines: 1,
overflow: TextOverflow.ellipsis,
softWrap: false,
style: TextStyle(color: Colors.black, fontWeight: FontWeight.bold),
),
Another solution:
public class CountryInfoResponse {
private List<Object> geonames;
}
Usage of a generic Object-List solved my problem, as there were other Datatypes like Boolean too.
UUID is similar in notion to port numbers in Internet. However, the difference between Bluetooth and the Internet is that, in Bluetooth, port numbers are assigned dynamically by the SDP (service discovery protocol) server during runtime where each UUID is given a port number. Other devices will ask the SDP server, who is registered under a reserved port number, about the available services on the device and it will reply with different services distinguishable from each other by being registered under different UUIDs.
My favourite recipe to switch back and forth between windows:
function! SwitchPrevWin()
let l:winnr_index = winnr()
if l:winnr_index > 1
let l:winnr_index -= 1
else
"set winnr_index to max window open
let l:winnr_index = winnr('$')
endif
exe l:winnr_index . "wincmd w"
endfunction
nmap <M-z> :call SwitchPrevWin()
imap <M-z> <ESC>:call SwitchPrevWin()
nmap <C-z> :wincmd w
imap <C-z> <ESC>:wincmd w
@Rogue Coder
This is great!
You could simply use the modulo operation (MOD or % in mysql) to make your code simple at the end:
Instead of:
AND (
( CASE ( 1299132000 - EM1.`meta_value` )
WHEN 0
THEN 1
ELSE ( 1299132000 - EM1.`meta_value` )
END
) / EM2.`meta_value`
) = 1
Do:
$current_timestamp = 1299132000 ;
AND ( ('$current_timestamp' - EM1.`meta_value` ) MOD EM2.`meta_value`) = 1")
To take this further, one could include events that do not recur for ever.
Something like "repeat_interval_1_end" to denote the date of the last "repeat_interval_1" could be added. This however, makes the query more complicated and I can't really figure out how to do this ...
Maybe someone could help!
val notifyIdLong = ((Date().time / 1000L) % Integer.MAX_VALUE)
var notifyIdInteger = notifyIdLong.toInt()
if (notifyIdInteger < 0) notifyIdInteger = -1 * notifyIdInteger // if it's -ve change to positive
notificationManager.notify(notifyIdInteger, mBuilder.build())
log.d(TAG,"notifyId = $notifyIdInteger")
import { Subject } from 'rxjs/Subject';
import { Observable } from 'rxjs/Observable';
export class LanguageComponent implemnts OnInit {
displayedColumns = ['name', 'native', 'code', 'leavel'];
user: any;
private update = new Subject<void>();
update$ = this.update.asObservable();
constructor(private authService: AuthService, private dialog: MatDialog) {}
ngOnInit() {
this.update$.subscribe(() => { this.refresh()});
}
setUpdate() {
this.update.next();
}
add() {
this.dialog.open(LanguageAddComponent, {
data: { user: this.user },
}).afterClosed().subscribe(result => {
this.setUpdate();
});
}
refresh() {
this.authService.getAuthenticatedUser().subscribe((res) => {
this.user = res;
this.teachDS = new LanguageDataSource(this.user.profile.languages.teach);
});
}
}
A sort of hack-ish way of doing things is like Eugene said. I ended up following his code and linking to my custom Css for the page. The problem for me was that, With a twitter timeline you have to do some sidestepping of twitter to override their code a smidgen. Now we have a rolling timeline with our css to it, I.E. Larger font, proper line height and making the scrollbar hidden for heights larger than their limits.
var c = document.createElement('link');
setTimeout(frames[0].document.body.appendChild(c),500); // Mileage varies by connection. Bump 500 a bit higher if necessary
Another way of doing this, in code only, is to detect if the process is running as admin like in the answer by @NG.. And then open the application again and close the current one.
I use this code when an application only needs admin privileges when run under certain conditions, such as when installing itself as a service. So it doesn't need to run as admin all the time like the other answers force it too.
Note in the below code NeedsToRunAsAdmin
is a method that detects if under current conditions admin privileges are required. If this returns false
the code will not elevate itself. This is a major advantage of this approach over the others.
Although this code has the advantages stated above, it does need to re-launch itself as a new process which isn't always what you want.
private static void Main(string[] args)
{
if (NeedsToRunAsAdmin() && !IsRunAsAdmin())
{
ProcessStartInfo proc = new ProcessStartInfo();
proc.UseShellExecute = true;
proc.WorkingDirectory = Environment.CurrentDirectory;
proc.FileName = Assembly.GetEntryAssembly().CodeBase;
foreach (string arg in args)
{
proc.Arguments += String.Format("\"{0}\" ", arg);
}
proc.Verb = "runas";
try
{
Process.Start(proc);
}
catch
{
Console.WriteLine("This application requires elevated credentials in order to operate correctly!");
}
}
else
{
//Normal program logic...
}
}
private static bool IsRunAsAdmin()
{
WindowsIdentity id = WindowsIdentity.GetCurrent();
WindowsPrincipal principal = new WindowsPrincipal(id);
return principal.IsInRole(WindowsBuiltInRole.Administrator);
}
For SQL Server 2000:
SELECT su.name,so.name,so.crdate,*
FROM sysobjects so JOIN sysusers su
ON so.uid = su.uid
WHERE xtype='U'
ORDER BY so.name
ForEach
Loop processes each ZIP file located within the $filepath
variable
foreach($file in $filepath)
{
$zip = $shell.NameSpace($file.FullName)
foreach($item in $zip.items())
{
$shell.Namespace($file.DirectoryName).copyhere($item)
}
Remove-Item $file.FullName
}
For me, the following works (mostly inspirated from all of the following answers), I started from Elad's answer and modify/simplify things to match my need (remove not file form inputs, only one file, ...).
Hope it can helps somebody :)
(PS: I know that exception handling is not implemented and it assumes that it was written inside a class, so I may need some integration effort...)
private void uploadFile()
{
Random rand = new Random();
string boundary = "----boundary" + rand.Next().ToString();
Stream data_stream;
byte[] header = System.Text.Encoding.ASCII.GetBytes("\r\n--" + boundary + "\r\nContent-Disposition: form-data; name=\"file_path\"; filename=\"" + System.IO.Path.GetFileName(this.file) + "\"\r\nContent-Type: application/octet-stream\r\n\r\n");
byte[] trailer = System.Text.Encoding.ASCII.GetBytes("\r\n--" + boundary + "--\r\n");
// Do the request
HttpWebRequest request = (HttpWebRequest)WebRequest.Create(MBF_URL);
request.UserAgent = "My Toolbox";
request.Method = "POST";
request.KeepAlive = true;
request.ContentType = "multipart/form-data; boundary=" + boundary;
data_stream = request.GetRequestStream();
data_stream.Write(header, 0, header.Length);
byte[] file_bytes = System.IO.File.ReadAllBytes(this.file);
data_stream.Write(file_bytes, 0, file_bytes.Length);
data_stream.Write(trailer, 0, trailer.Length);
data_stream.Close();
// Read the response
WebResponse response = request.GetResponse();
data_stream = response.GetResponseStream();
StreamReader reader = new StreamReader(data_stream);
this.url = reader.ReadToEnd();
if (this.url == "") { this.url = "No response :("; }
reader.Close();
data_stream.Close();
response.Close();
}
But be aware that old browsers doesn't support getElementsByClassName
.
Then, you can do
function getElementsByClassName(c,el){
if(typeof el=='string'){el=document.getElementById(el);}
if(!el){el=document;}
if(el.getElementsByClassName){return el.getElementsByClassName(c);}
var arr=[],
allEls=el.getElementsByTagName('*');
for(var i=0;i<allEls.length;i++){
if(allEls[i].className.split(' ').indexOf(c)>-1){arr.push(allEls[i])}
}
return arr;
}
getElementsByClassName('4','test')[0];
It seems it works, but be aware that an HTML class
You can also do something like this if you want to export default a const/let, instead of
const MyComponent = ({ attr1, attr2 }) => (<p>Now Export On other Line</p>);
export default MyComponent
You can do something like this, which I do not like personally.
let MyComponent;
export default MyComponent = ({ }) => (<p>Now Export On SameLine</p>);
Chr(10)
is the Line Feed character and Chr(13)
is the Carriage Return character.
You probably won't notice a difference if you use only one or the other, but you might find yourself in a situation where the output doesn't show properly with only one or the other. So it's safer to include both.
Historically, Line Feed would move down a line but not return to column 1:
This
is
a
test.
Similarly Carriage Return would return to column 1 but not move down a line:
This
is
a
test.
Paste this into a text editor and then choose to "show all characters", and you'll see both characters present at the end of each line. Better safe than sorry.
My working example of using style and android:theme simultaneously (API >= 21)
<android.support.v7.widget.SwitchCompat
android:id="@+id/wan_enable_nat_switch"
style="@style/Switch"
app:layout_constraintBaseline_toBaselineOf="@id/wan_enable_nat_label"
app:layout_constraintEnd_toEndOf="parent" />
<style name="Switch">
<item name="android:layout_width">wrap_content</item>
<item name="android:layout_height">wrap_content</item>
<item name="android:paddingEnd">16dp</item>
<item name="android:focusableInTouchMode">true</item>
<item name="android:theme">@style/ThemeOverlay.MySwitchCompat</item>
</style>
<style name="ThemeOverlay.MySwitchCompat" parent="">
<item name="colorControlActivated">@color/colorPrimaryDark</item>
<item name="colorSwitchThumbNormal">@color/text_outline_not_active</item>
<item name="android:colorForeground">#42221f1f</item>
</style>
If you're willing to transmit some data and that you don't need to be secured (any public infos) you can use a CORS proxy, it's very easy, you'll not have to change anything in your code or in server side (especially of it's not your server like the Yahoo API or OpenWeather). I've used it to fetch JSON files with an XMLHttpRequest and it worked fine.
It's important to note, that NULL doesn't equal NULL.
NULL
is not a value, and therefore cannot be compared to another value.
where x is null
checks whether x is a null value.
where x = null
is checking whether x equals NULL, which will never be true
strcmp()
and ===
are both case sensitive but ===
is much faster
sample code: http://snipplr.com/view/758/
For any Xamarin.iOS or Xamarin.Forms developers, additionally you will want to check the .csproj file (for the iOS project) and ensure that it contains references to the PNG's and not just the Asset Catalog i.e.
<ItemGroup>
<ImageAsset Include="Resources\Images.xcassets\AppIcon.appiconset\Contents.json" />
<ImageAsset Include="Resources\Images.xcassets\AppIcon.appiconset\Icon-40.png" />
<ImageAsset Include="Resources\Images.xcassets\AppIcon.appiconset\Icon-40%402x.png" />
<ImageAsset Include="Resources\Images.xcassets\AppIcon.appiconset\Icon-40%403x.png" />
<ImageAsset Include="Resources\Images.xcassets\AppIcon.appiconset\Icon-60%402x.png" />
<ImageAsset Include="Resources\Images.xcassets\AppIcon.appiconset\Icon-60%403x.png" />
<ImageAsset Include="Resources\Images.xcassets\AppIcon.appiconset\Icon-72.png" />
<ImageAsset Include="Resources\Images.xcassets\AppIcon.appiconset\Icon-72%402x.png" />
<ImageAsset Include="Resources\Images.xcassets\AppIcon.appiconset\Icon-76.png" />
<ImageAsset Include="Resources\Images.xcassets\AppIcon.appiconset\Icon-76%402x.png" />
<ImageAsset Include="Resources\Images.xcassets\AppIcon.appiconset\Icon-83.5%402x.png" />
<ImageAsset Include="Resources\Images.xcassets\AppIcon.appiconset\Icon-Small-50.png" />
<ImageAsset Include="Resources\Images.xcassets\AppIcon.appiconset\Icon-Small-50%402x.png" />
<ImageAsset Include="Resources\Images.xcassets\AppIcon.appiconset\Icon-Small.png" />
<ImageAsset Include="Resources\Images.xcassets\AppIcon.appiconset\Icon-Small%402x.png" />
<ImageAsset Include="Resources\Images.xcassets\AppIcon.appiconset\Icon-Small%403x.png" />
<ImageAsset Include="Resources\Images.xcassets\AppIcon.appiconset\Icon.png" />
<ImageAsset Include="Resources\Images.xcassets\AppIcon.appiconset\Icon%402x.png" />
<ImageAsset Include="Resources\Images.xcassets\AppIcon.appiconset\NotificationIcon%402x.png" />
<ImageAsset Include="Resources\Images.xcassets\AppIcon.appiconset\NotificationIcon%403x.png" />
<ImageAsset Include="Resources\Images.xcassets\AppIcon.appiconset\NotificationIcon~ipad.png" />
<ImageAsset Include="Resources\Images.xcassets\AppIcon.appiconset\NotificationIcon~ipad%402x.png" />
</ItemGroup>
this work for me to add padding to the title and for ActionBar
icon i have set that programmatically.
getActionBar().setTitle(Html.fromHtml("<font color='#fffff'> Boat App </font>"));
java.util.Date class has before and after method to compare dates.
Date date1 = new Date();
Date date2 = new Date();
if(date1.before(date2)){
//Do Something
}
if(date1.after(date2)){
//Do Something else
}
As the other posters say, pull merges changes from upstream into your repository. If you want to replace what is in your repository with what is in upstream, you have several options. Off the cuff, I'd go with
git checkout HEAD^1 # Get off your repo's master.. doesn't matter where you go, so just go back one commit
git branch -d master # Delete your repo's master branch
git checkout -t upstream/master # Check out upstream's master into a local tracking branch of the same name
I faced a similar issue while copying a sheet to another workbook. I prefer to avoid using 'activesheet' though as it has caused me issues in the past. Hence I wrote a function to perform this inline with my needs. I add it here for those who arrive via google as I did:
The main issue here is that copying a visible sheet to the last index position results in Excel repositioning the sheet to the end of the visible sheets. Hence copying the sheet to the position after the last visible sheet sorts this issue. Even if you are copying hidden sheets.
Function Copy_WS_to_NewWB(WB As Workbook, WS As Worksheet) As Worksheet
'Creates a copy of the specified worksheet in the specified workbook
' Accomodates the fact that there may be hidden sheets in the workbook
Dim WSInd As Integer: WSInd = 1
Dim CWS As Worksheet
'Determine the index of the last visible worksheet
For Each CWS In WB.Worksheets
If CWS.Visible Then If CWS.Index > WSInd Then WSInd = CWS.Index
Next CWS
WS.Copy after:=WB.Worksheets(WSInd)
Set Copy_WS_to_NewWB = WB.Worksheets(WSInd + 1)
End Function
To use this function for the original question (ie in the same workbook) could be done with something like...
Set test = Copy_WS_to_NewWB(Workbooks(1), Workbooks(1).Worksheets(1))
test.name = "test sheet name"
EDIT 04/11/2020 from –user3598756 Adding a slight refactoring of the above code
Function CopySheetToWorkBook(targetWb As Workbook, shToBeCopied As Worksheet, copiedSh As Worksheet) As Boolean
'Creates a copy of the specified worksheet in the specified workbook
' Accomodates the fact that there may be hidden sheets in the workbook
Dim lastVisibleShIndex As Long
Dim iSh As Long
On Error GoTo SafeExit
With targetWb
'Determine the index of the last visible worksheet
For iSh = .Sheets.Count To 1 Step -1
If .Sheets(iSh).Visible Then
lastVisibleShIndex = iSh
Exit For
End If
Next
shToBeCopied.Copy after:=.Sheets(lastVisibleShIndex)
Set copiedSh = .Sheets(lastVisibleShIndex + 1)
End With
CopySheetToWorkBook = True
Exit Function
SafeExit:
End Function
other than using different (more descriptive?) variable names, the refactoring manily deals with:
turning the Function type into a `Boolean while including returned (copied) worksheet within function parameters list this, to let the calling Sub hande possible errors, like
Dim WB as Workbook: Set WB = ThisWorkbook ' as an example
Dim sh as Worksheet: Set sh = ActiveSheet ' as an example
Dim copiedSh as Worksheet
If CopySheetToWorkBook(WB, sh, copiedSh) Then
' go on with your copiedSh sheet
Else
Msgbox "Error while trying to copy '" & sh.Name & "'" & vbcrlf & err.Description
End If
having the For - Next loop stepping from last sheet index backwards and exiting at first visible sheet occurence, since we're after the "last" visible one
This is a tool to open Java class file binaries, view their internal structure, modify portions of it if required and save the class file back. It also generates readable reports similar to the javap utility. Easy to use Java Swing GUI. The user interface tries to display as much detail as possible and tries to present a structure as close as the actual Java class file structure. At the same time ease of use and class file consistency while doing modifications is also stressed. For example, when a method is deleted, the associated constant pool entry will also be deleted if it is no longer referenced. In built verifier checks changes before saving the file. This tool has been used by people learning Java class file internals. This tool has also been used to do quick modifications in class files when the source code is not available." this is a quote from the website.
If you are running on Redhat, do following
Stop Jenkins
$sudo service jenkins stop
change port number in /etc/sysconfig/jenkins
like i did for port 8081
JENKINS_PORT="8081"
start Jenkins again
$sudo service jenkins start
You need to put the font files in assets folder (may be a fonts sub-folder within assets) and refer to it in the styles:
@font-face {
font-family: lato;
src: url(assets/font/Lato.otf) format("opentype");
}
Once done, you can apply this font any where like:
* {
box-sizing: border-box;
margin: 0;
padding: 0;
font-family: 'lato', 'arial', sans-serif;
}
You can put the @font-face
definition in your global styles.css
or styles.scss
and you would be able to refer to the font anywhere - even in your component specific CSS/SCSS. styles.css
or styles.scss
is already defined in angular-cli.json
. Or, if you want you can create a separate CSS/SCSS file and declare it in angular-cli.json along with the styles.css
or styles.scss
like:
"styles": [
"styles.css",
"fonts.css"
],
This code worked for me
protected override void OnModelCreating(DbModelBuilder modelBuilder)
{
modelBuilder.Entity<UserDetail>()
.HasRequired(d => d.User)
.WithOptional(u => u.UserDetail)
.WillCascadeOnDelete(true);
}
The migration code was:
public override void Up()
{
AddForeignKey("UserDetail", "UserId", "User", "UserId", cascadeDelete: true);
}
And it worked fine. When I first used
modelBuilder.Entity<User>()
.HasOptional(a => a.UserDetail)
.WithOptionalDependent()
.WillCascadeOnDelete(true);
The migration code was:
AddForeignKey("User", "UserDetail_UserId", "UserDetail", "UserId", cascadeDelete: true);
but it does not match any of the two overloads available (in EntityFramework 6)
add below line in styles.xml
<style name="AppTheme.Gray" parent="Theme.AppCompat.Light.DarkActionBar">
<!-- Customize your theme here. -->
<item name="colorButtonNormal">@color/colorGray</item>
</style>
in button, add android:theme="@style/AppTheme.Gray"
, example:
<Button
android:theme="@style/AppTheme.Gray"
android:textColor="@color/colorWhite"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="@android:string/cancel"/>
This answer is based on Pedro's answer but adjusted so it also works if text attribute is already set:
package nl.raakict.android.spc.widget;
import android.content.Context;
import android.text.Spannable;
import android.text.SpannableString;
import android.text.style.ScaleXSpan;
import android.util.AttributeSet;
import android.widget.TextView;
public class LetterSpacingTextView extends TextView {
private float letterSpacing = LetterSpacing.BIGGEST;
private CharSequence originalText = "";
public LetterSpacingTextView(Context context) {
super(context);
}
public LetterSpacingTextView(Context context, AttributeSet attrs){
super(context, attrs);
originalText = super.getText();
applyLetterSpacing();
this.invalidate();
}
public LetterSpacingTextView(Context context, AttributeSet attrs, int defStyle){
super(context, attrs, defStyle);
}
public float getLetterSpacing() {
return letterSpacing;
}
public void setLetterSpacing(float letterSpacing) {
this.letterSpacing = letterSpacing;
applyLetterSpacing();
}
@Override
public void setText(CharSequence text, BufferType type) {
originalText = text;
applyLetterSpacing();
}
@Override
public CharSequence getText() {
return originalText;
}
private void applyLetterSpacing() {
if (this == null || this.originalText == null) return;
StringBuilder builder = new StringBuilder();
for(int i = 0; i < originalText.length(); i++) {
String c = ""+ originalText.charAt(i);
builder.append(c.toLowerCase());
if(i+1 < originalText.length()) {
builder.append("\u00A0");
}
}
SpannableString finalText = new SpannableString(builder.toString());
if(builder.toString().length() > 1) {
for(int i = 1; i < builder.toString().length(); i+=2) {
finalText.setSpan(new ScaleXSpan((letterSpacing+1)/10), i, i+1, Spannable.SPAN_EXCLUSIVE_EXCLUSIVE);
}
}
super.setText(finalText, BufferType.SPANNABLE);
}
public class LetterSpacing {
public final static float NORMAL = 0;
public final static float NORMALBIG = (float)0.025;
public final static float BIG = (float)0.05;
public final static float BIGGEST = (float)0.2;
}
}
If you want to use it programatically:
LetterSpacingTextView textView = new LetterSpacingTextView(context);
textView.setSpacing(10); //Or any float. To reset to normal, use 0 or LetterSpacingTextView.Spacing.NORMAL
textView.setText("My text");
//Add the textView in a layout, for instance:
((LinearLayout) findViewById(R.id.myLinearLayout)).addView(textView);
I would extract drawables and xml from Android source code and change its color to red. Here is example how I completed this for mdpi drawables:
Custom red_scrubber_control.xml
(add to res/drawable):
<selector xmlns:android="http://schemas.android.com/apk/res/android">
<item android:drawable="@drawable/red_scrubber_control_disabled_holo" android:state_enabled="false"/>
<item android:drawable="@drawable/red_scrubber_control_pressed_holo" android:state_pressed="true"/>
<item android:drawable="@drawable/red_scrubber_control_focused_holo" android:state_selected="true"/>
<item android:drawable="@drawable/red_scrubber_control_normal_holo"/>
</selector>
Custom: red_scrubber_progress.xml
<layer-list xmlns:android="http://schemas.android.com/apk/res/android" >
<item
android:id="@android:id/background"
android:drawable="@drawable/red_scrubber_track_holo_light"/>
<item android:id="@android:id/secondaryProgress">
<scale
android:drawable="@drawable/red_scrubber_secondary_holo"
android:scaleWidth="100%" />
</item>
<item android:id="@android:id/progress">
<scale
android:drawable="@drawable/red_scrubber_primary_holo"
android:scaleWidth="100%" />
</item>
</layer-list>
Then copy required drawables from Android source code, I took from this link
It is good to copy these drawables for each hdpi, mdpi, xhdpi. For example I use only mdpi:
Then using Photoshop change color from blue to red:
red_scrubber_control_disabled_holo.png:
red_scrubber_control_focused_holo.png:
red_scrubber_control_normal_holo.png:
red_scrubber_control_pressed_holo.png:
red_scrubber_primary_holo.9.png:
red_scrubber_secondary_holo.9.png:
red_scrubber_track_holo_light.9.png:
Add SeekBar to layout:
<SeekBar
android:id="@+id/seekBar1"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:progressDrawable="@drawable/red_scrubber_progress"
android:thumb="@drawable/red_scrubber_control" />
Result:
I just had the same problem in GoLand (which is Intellij IDEA for Go) and worked out a solution. You need to change the Run kind
from File
to Package
or Directory
. You can choose this from a drop-down if you go into Run/Edit
Configurations.
Eg: for package ~/go/src/a_package
, use a Package path
of a_package
and a Directory
of ~/go/src/a_package
and Run kind
of Package
or Directory
.
None of the other examples provided worked in my case - e.g. header would not match table body content when scrolling. I found a much simpler and clean way, allowing you to setup the table the normal way, and without too much code.
Example:
.table-wrapper{
overflow-y: scroll;
height: 100px;
}
.table-wrapper th{
position: sticky;
top: 0;
background-color: #FFF;
}
_x000D_
<div class="table-wrapper">
<table>
<thead>
<tr>
<th>Header 1</th>
<th>Header 2</th>
<th>Header 3</th>
</tr>
</thead>
<tbody>
<tr>
<td>Text</td>
<td>Text</td>
<td>Text</td>
</tr>
<tr>
<td>Text</td>
<td>Text</td>
<td>Text</td>
</tr>
<tr>
<td>Text</td>
<td>Text</td>
<td>Text</td>
</tr>
<tr>
<td>Text</td>
<td>Text</td>
<td>Text</td>
</tr>
<tr>
<td>Text</td>
<td>Text</td>
<td>Text</td>
</tr>
<tr>
<td>Text</td>
<td>Text</td>
<td>Text</td>
</tr>
<tr>
<td>Text</td>
<td>Text</td>
<td>Text</td>
</tr>
</tbody>
</table>
</div>
_x000D_
Thanks to https://algoart.fr/articles/css-table-fixed-header
For those of us who don't remember where we are on unix, or which SID we are using.
Pop this in your .profile.
<br>function CD
<br>{
<br> unalias cd
<br> command cd "$@" && PS1="\${ORACLE_SID}:$(hostname):$PWD> "
<br> alias cd=CD
<br>}
<br>
alias cd=CD
It wont break if you wrap each item in a div. Check out my fiddle with the link below. I made the width of the fieldset 125px and made each item 50px wide. You'll see the label and checkbox remain side by side on a new line and don't break.
<fieldset>
<div class="item">
<input type="checkbox" id="a">
<label for="a">a</label>
</div>
<div class="item">
<input type="checkbox" id="b">
<!-- depending on width, a linebreak can occur here. -->
<label for="b">bgf bh fhg fdg hg dg gfh dfgh</label>
</div>
<div class="item">
<input type="checkbox" id="c">
<label for="c">c</label>
</div>
</fieldset>
Perhps this is what you are looking for.
var pos = 0;
window.onload = function start() {
setTimeout(slide, 3000);
}
function slide() {
pos -= 600;
if (pos === -2400)
pos = 0;
document.getElementById('container').style.marginLeft= pos + "px";
setTimeout(slide, 3000);
}
It should work, however http://nginx.org/en/docs/http/ngx_http_core_module.html#alias says:
When location matches the last part of the directive’s value: it is better to use the root directive instead:
which would yield:
server {
listen 8080;
server_name www.mysite.com mysite.com;
error_log /home/www-data/logs/nginx_www.error.log;
error_page 404 /404.html;
location /public/doc/ {
autoindex on;
root /home/www-data/mysite;
}
location = /404.html {
root /home/www-data/mysite/static/html;
}
}
If you should need to replace the handle with something else entirely, rather than just restyling it:
$('.slider').append('<div class="my-handle ui-slider-handle"><svg height="18" width="14"><path d="M13,9 5,1 A 10,10 0, 0, 0, 5,17z"/></svg></div>');_x000D_
_x000D_
$('.slider').slider({_x000D_
range: "min",_x000D_
value: 10_x000D_
});
_x000D_
.slider .ui-state-default {_x000D_
background: none;_x000D_
}_x000D_
.slider.ui-slider .ui-slider-handle {_x000D_
width: 14px;_x000D_
height: 18px;_x000D_
margin-left: -5px;_x000D_
top: -4px;_x000D_
border: none;_x000D_
background: none;_x000D_
}_x000D_
.slider {_x000D_
height: 10px;_x000D_
}
_x000D_
<script src="https://ajax.googleapis.com/ajax/libs/jquery/1.9.1/jquery.min.js"></script>_x000D_
<script src="https://code.jquery.com/ui/1.9.1/jquery-ui.min.js"></script>_x000D_
<link href="https://code.jquery.com/ui/1.9.2/themes/base/jquery-ui.css" rel="stylesheet" />_x000D_
<div class="slider"></div>
_x000D_
<?php if ($foo) { ?>
<div class="mydiv">Condition is true</div>
<?php } else { ?>
<div class="myotherdiv">Condition is false</div>
<?php } ?>
It sounds like you have a connection leak in your application because it fails to close pooled connections. You aren't having issues just with <idle> in transaction
sessions, but with too many connections overall.
Killing connections is not the right answer for that, but it's an OK-ish temporary workaround.
Rather than re-starting PostgreSQL to boot all other connections off a PostgreSQL database, see: How do I detach all other users from a postgres database? and How to drop a PostgreSQL database if there are active connections to it? . The latter shows a better query.
For setting timeouts, as @Doon suggested see How to close idle connections in PostgreSQL automatically?, which advises you to use PgBouncer to proxy for PostgreSQL and manage idle connections. This is a very good idea if you have a buggy application that leaks connections anyway; I very strongly recommend configuring PgBouncer.
A TCP keepalive won't do the job here, because the app is still connected and alive, it just shouldn't be.
In PostgreSQL 9.2 and above, you can use the new state_change
timestamp column and the state
field of pg_stat_activity
to implement an idle connection reaper. Have a cron job run something like this:
SELECT pg_terminate_backend(pid)
FROM pg_stat_activity
WHERE datname = 'regress'
AND pid <> pg_backend_pid()
AND state = 'idle'
AND state_change < current_timestamp - INTERVAL '5' MINUTE;
In older versions you need to implement complicated schemes that keep track of when the connection went idle. Do not bother; just use pgbouncer.
You can't sort a Dictionary<TKey, TValue>
- it's inherently unordered. (Or rather, the order in which entries are retrieved is implementation-specific. You shouldn't rely on it working the same way between versions, as ordering isn't part of its designed functionality.)
You can use SortedList<TKey, TValue>
or SortedDictionary<TKey, TValue>
, both of which sort by the key (in a configurable way, if you pass an IEqualityComparer<T>
into the constructor) - might those be of use to you?
Pay little attention to the word "list" in the name SortedList
- it's still a dictionary in that it maps keys to values. It's implemented using a list internally, effectively - so instead of looking up by hash code, it does a binary search. SortedDictionary
is similarly based on binary searches, but via a tree instead of a list.
You can also specify the font size relative to the base_size
included in themes such as theme_bw()
(where base_size
is 11) using the rel()
function.
For example:
ggplot(mtcars, aes(disp, mpg, col=as.factor(cyl))) +
geom_point() +
theme_bw() +
theme(legend.text=element_text(size=rel(0.5)))
Constructors are not inherited. They are called implicitly or explicitly by the child constructor.
The compiler creates a default constructor (one with no arguments) and a default copy constructor (one with an argument which is a reference to the same type). But if you want a constructor that will accept an int, you have to define it explicitly.
class A
{
public:
explicit A(int x) {}
};
class B: public A
{
public:
explicit B(int x) : A(x) { }
};
UPDATE: In C++11, constructors can be inherited. See Suma's answer for details.
Use htmlspecialchars
on PHP
. On HTML try to avoid using:
element.innerHTML = “…”;
element.outerHTML = “…”;
document.write(…);
document.writeln(…);
where var
is controlled by the user.
Also obviously try avoiding eval(var)
,
if you have to use any of them then try JS escaping them, HTML escape them and you might have to do some more but for the basics this should be enough.
You can also use the not now documented disabled
attribute:
$("#element").dialog({
buttons: [
{
text: "Confirm",
disabled: true,
id: "my-button-1"
},
{
text: "Cancel",
id: "my-button-2",
click: function(){
$(this).dialog("close");
}
}]
});
To enable after dialog has opened, use:
$("#my-button-1").attr('disabled', false);
JsFiddle: http://jsfiddle.net/xvt96e1p/4/
For OS X 10.4.x and previous:
int i;
for (i = 0; i < [myArray count]; i++) {
id myArrayElement = [myArray objectAtIndex:i];
...do something useful with myArrayElement
}
For OS X 10.5.x (or iPhone) and beyond:
for (id myArrayElement in myArray) {
...do something useful with myArrayElement
}
You can use PowerShell.
New-Service -Name "TestService" -BinaryPathName "C:\WINDOWS\System32\svchost.exe -k netsvcs"
Using implicit wait works for me.
driver.Manage().Timeouts().ImplicitWait = TimeSpan.FromSeconds(10);
Refer to this answer Selenium c# Webdriver: Wait Until Element is Present
Using the .loc[] accessor:
In [25]: a.loc[a['c1'] == 8].index[0]
Out[25]: 4
Can also use the get_loc() by setting 'c1' as the index. This will not change the original dataframe.
In [17]: a.set_index('c1').index.get_loc(8)
Out[17]: 4
I had the same issue, I resolved it using some javascript.
<script type="text/javascript">
var theHeight = $("#PrimaryContent").height() + 100;
$('#SecondaryContent').height(theHeight);
</script>
The CBO builds a decision tree, estimating the costs of each possible execution path available per query. The costs are set by the CPU_cost or I/O_cost parameter set on the instance. And the CBO estimates the costs, as best it can with the existing statistics of the tables and indexes that the query will use. You should not tune your query based on cost alone. Cost allows you to understand WHY the optimizer is doing what it does. Without cost you could figure out why the optimizer chose the plan it did. Lower cost does not mean a faster query. There are cases where this is true and there will be cases where this is wrong. Cost is based on your table stats and if they are wrong the cost is going to be wrong.
When tuning your query, you should take a look at the cardinality and the number of rows of each step. Do they make sense? Is the cardinality the optimizer is assuming correct? Is the rows being return reasonable. If the information present is wrong then its very likely the optimizer doesn't have the proper information it needs to make the right decision. This could be due to stale or missing statistics on the table and index as well as cpu-stats. Its best to have stats updated when tuning a query to get the most out of the optimizer. Knowing your schema is also of great help when tuning. Knowing when the optimizer chose a really bad decision and pointing it in the correct path with a small hint can save a load of time.
You could manually set the cookie, but depending on your use case (and if you might want to add more types of persistent/session data in future) it might make more sense to use Django's sessions feature. This will let you get and set variables tied internally to the user's session cookie. Cool thing about this is that if you want to store a lot of data tied to a user's session, storing it all in cookies will add a lot of weight to HTTP requests and responses. With sessions the session cookie is all that is sent back and forth (though there is the overhead on Django's end of storing the session data to keep in mind).
This probably means that python doesn't know where PyQt5 is located. To check, go into the interactive terminal and type:
import sys
print sys.path
What you probably need to do is add the directory that contains the PyQt5 module to your PYTHONPATH
environment variable. If you use bash
, here's how:
~/.bashrc
export PYTHONPATH=/path/to/PyQt5/directory:$PYTHONPATH
where /path/to/PyQt5/directory
is the path to the folder where the PyQt5 library is located.
This question seems to be ambiguous.
I'll try with my interpretation of the request.
def do_something(data)
puts "Found! #{data}"
end
a = { 'x' => 'test', 'y' => 'foo', 'z' => 'bar' }
a.each { |key,value| do_something(value) if key == 'x' }
This will loop over all the key,value pairs and do something only if the key is 'x'.
I'd recommend reading the header directly from the driver, not through Spark. Two reasons for this: 1) It's a single line. There's no advantage to a distributed approach. 2) We need this line in the driver, not the worker nodes.
It goes something like this:
// Ridiculous amount of code to read one line.
val uri = new java.net.URI(filename)
val conf = sc.hadoopConfiguration
val fs = hadoop.fs.FileSystem.get(uri, conf)
val path = new hadoop.fs.Path(filename)
val stream = fs.open(path)
val source = scala.io.Source.fromInputStream(stream)
val header = source.getLines.head
Now when you make the RDD you can discard the header.
val csvRDD = sc.textFile(filename).filter(_ != header)
Then we can make an RDD from one column, for example:
val idx = header.split(",").indexOf(columnName)
val columnRDD = csvRDD.map(_.split(",")(idx))
Use java.util.TreeSet
as the actual object. When you iterate over this collection, the values come back in a well-defined order.
If you use java.util.HashSet
then the order depends on an internal hash function which is almost certainly not lexicographic (based on content).
I like using the following to prevent things being outside my div
elements. It helps with CSS rollovers too.
.marquee{
overflow:hidden;
}
this will hide anything that moves/is outside of the div which will prevent the browser expanding and causing a scroll bar to appear.
Value of string::npos is 18446744073709551615. Its a value returned if there is no string found.
If you want to get a list of all tablespaces used in the current database instance, you can use the DBA_TABLESPACES view as shown in the following SQL script example:
SQL> connect SYSTEM/fyicenter
Connected.
SQL> SELECT TABLESPACE_NAME, STATUS, CONTENTS
2 FROM USER_TABLESPACES;
TABLESPACE_NAME STATUS CONTENTS
------------------------------ --------- ---------
SYSTEM ONLINE PERMANENT
UNDO ONLINE UNDO
SYSAUX ONLINE PERMANENT
TEMP ONLINE TEMPORARY
USERS ONLINE PERMANENT
http://dba.fyicenter.com/faq/oracle/Show-All-Tablespaces-in-Current-Database.html
Here are a few options for changing text / label sizes
library(ggplot2)
# Example data using mtcars
a <- aggregate(mpg ~ vs + am , mtcars, function(i) round(mean(i)))
p <- ggplot(mtcars, aes(factor(vs), y=mpg, fill=factor(am))) +
geom_bar(stat="identity",position="dodge") +
geom_text(data = a, aes(label = mpg),
position = position_dodge(width=0.9), size=20)
The size
in the geom_text
changes the size of the geom_text
labels.
p <- p + theme(axis.text = element_text(size = 15)) # changes axis labels
p <- p + theme(axis.title = element_text(size = 25)) # change axis titles
p <- p + theme(text = element_text(size = 10)) # this will change all text size
# (except geom_text)
For this And why size of 10 in geom_text() is different from that in theme(text=element_text()) ?
Yes, they are different. I did a quick manual check and they appear to be in the ratio of ~ (14/5) for geom_text
sizes to theme
sizes.
So a horrible fix for uniform sizes is to scale by this ratio
geom.text.size = 7
theme.size = (14/5) * geom.text.size
ggplot(mtcars, aes(factor(vs), y=mpg, fill=factor(am))) +
geom_bar(stat="identity",position="dodge") +
geom_text(data = a, aes(label = mpg),
position = position_dodge(width=0.9), size=geom.text.size) +
theme(axis.text = element_text(size = theme.size, colour="black"))
This of course doesn't explain why? and is a pita (and i assume there is a more sensible way to do this)
As of TypeScript 2.0 you can include typings for native promises by including the following in your tsconfig.json
"compilerOptions": {
"lib": ["es5", "es2015.promise"]
}
This will include the promise declarations that comes with TypeScript without having to set the target to ES6.
loaddir is my solution for quick loading of a directory, recursively.
can return
{ 'path/to/file': 'fileContents...' }
or
{ path: { to: { file: 'fileContents'} } }
It has callback
which will be called when the file is changed.
It handles situations where files are large enough that watch
gets called before they're done writing.
I've been using it in projects for a year or so, and just recently added promises to it.
Help me battle test it!
It is so simple to do it
if you want to use it as host and want to resolve it
If you are using ambassador to any other API gateway for service located in another namespace it's always suggested to use :
Use : <service name>
Use : <service.name>.<namespace name>
Not : <service.name>.<namespace name>.svc.cluster.local
it will be like : servicename.namespacename.svc.cluster.local
this will send request to a particular service inside the namespace you have mention.
example:
kind: Service
apiVersion: v1
metadata:
name: service
spec:
type: ExternalName
externalName: <servicename>.<namespace>.svc.cluster.local
Here replace the <servicename>
and <namespace>
with the appropriate value.
In Kubernetes, namespaces are used to create virtual environment but all are connect with each other.
Set the FOREIGN_KEY_CHECKS before and after your delete SQL statements.
SET FOREIGN_KEY_CHECKS = 0;
DELETE FROM table WHERE ...
DELETE FROM table WHERE ...
DELETE FROM table WHERE ...
SET FOREIGN_KEY_CHECKS = 1;
Source: https://alvinalexander.com/blog/post/mysql/drop-mysql-tables-in-any-order-foreign-keys.
I would like to add that if you want to do this process automatically (download, stop and restart a new container with the same settings as described by @Yaroslav) you can use WatchTower. A program that auto updates your containers when they are changed https://github.com/v2tec/watchtower
Fundamentally you hadn't declare location which is what nginx uses to bind URL with resources.
server {
listen 80;
server_name localhost;
access_log logs/localhost.access.log main;
location / {
root /var/www/board/public;
index index.html index.htm index.php;
}
}
Yes it can mean so, or it can be a simple iterator. For example: Example as iterator:
a=set(['1','2','3'])
for x in a:
print ('This set contains the value ' + x)
Similarly as a check:
a=set('ILovePython')
if 'I' in a:
print ('There is an "I" in here')
edited: edited to include sets rather than lists and strings
do it with the following code:
DocumentBuilderFactory builderFactory = DocumentBuilderFactory.newInstance();
try {
DocumentBuilder builder = builderFactory.newDocumentBuilder();
Document doc = builder.parse("/home/codefelix/IdeaProjects/Gradle/src/main/resources/static/Employees.xml");
NodeList namelist = (NodeList) doc.getElementById("1");
for (int i = 0; i < namelist.getLength(); i++) {
Node p = namelist.item(i);
if (p.getNodeType() == Node.ELEMENT_NODE) {
Element person = (Element) p;
NodeList id = (NodeList) person.getElementsByTagName("Employee");
NodeList nodeList = person.getChildNodes();
List<EmployeeDto> employeeDtoList=new ArrayList();
for (int j = 0; j < nodeList.getLength(); j++) {
Node n = nodeList.item(j);
if (n.getNodeType() == Node.ELEMENT_NODE) {
Element naame = (Element) n;
System.out.println("Employee" + id + ":" + naame.getTagName() + "=" +naame.getTextContent());
}
}
}
}
} catch (ParserConfigurationException e) {
e.printStackTrace();
} catch (SAXException e) {
e.printStackTrace();
} catch (IOException e) {
e.printStackTrace();
}
}
}
You can try by sending XHR Requests a few times, and then if you get errors it means there's a problem with the internet connection.
Edit: I found this JQuery script which is doing what you are asking for, I didn't test it though.
SharpSSH should do the job. http://www.codeproject.com/Articles/11966/sharpSsh-A-Secure-Shell-SSH-library-for-NET
Run eclipse.exe file as an Administrator. It worked for me
i use $.each of jquery but you can make it with a for loop, an improvement is this:
//.ArraySort(array)
/* Sort an array
*/
ArraySort = function(array, sortFunc){
var tmp = [];
var aSorted=[];
var oSorted={};
for (var k in array) {
if (array.hasOwnProperty(k))
tmp.push({key: k, value: array[k]});
}
tmp.sort(function(o1, o2) {
return sortFunc(o1.value, o2.value);
});
if(Object.prototype.toString.call(array) === '[object Array]'){
$.each(tmp, function(index, value){
aSorted.push(value.value);
});
return aSorted;
}
if(Object.prototype.toString.call(array) === '[object Object]'){
$.each(tmp, function(index, value){
oSorted[value.key]=value.value;
});
return oSorted;
}
};
So now you can do
console.log("ArraySort");
var arr1 = [4,3,6,1,2,8,5,9,9];
var arr2 = {'a':4, 'b':3, 'c':6, 'd':1, 'e':2, 'f':8, 'g':5, 'h':9};
var arr3 = {a: 'green', b: 'brown', c: 'blue', d: 'red'};
var result1 = ArraySort(arr1, function(a,b){return a-b});
var result2 = ArraySort(arr2, function(a,b){return a-b});
var result3 = ArraySort(arr3, function(a,b){return a>b});
console.log(result1);
console.log(result2);
console.log(result3);
You need to re-add that certificate to your machine or chose another certificate.
To choose another certificate or to recreate one, head over to the Project's properties page, click on Signing tab and either
Once either of these is done, you should be able to build it again.
If you for example want the icon of glyphicon-chevron-left
Try adding class="glyphicon glyphicon-chevron-left"
All Java objects have a toString()
method, which is invoked when you try to print the object.
System.out.println(myObject); // invokes myObject.toString()
This method is defined in the Object
class (the superclass of all Java objects). The Object.toString()
method returns a fairly ugly looking string, composed of the name of the class, an @
symbol and the hashcode of the object in hexadecimal. The code for this looks like:
// Code of Object.toString()
public String toString() {
return getClass().getName() + "@" + Integer.toHexString(hashCode());
}
A result such as com.foo.MyType@2f92e0f4
can therefore be explained as:
com.foo.MyType
- the name of the class, i.e. the class is MyType
in the package com.foo
.@
- joins the string together2f92e0f4
the hashcode of the object.The name of array classes look a little different, which is explained well in the Javadocs for Class.getName()
. For instance, [Ljava.lang.String
means:
[
- an single-dimensional array (as opposed to [[
or [[[
etc.)L
- the array contains a class or interfacejava.lang.String
- the type of objects in the arrayTo print something different when you call System.out.println(myObject)
, you must override the toString()
method in your own class. Here's a simple example:
public class Person {
private String name;
// constructors and other methods omitted
@Override
public String toString() {
return name;
}
}
Now if we print a Person
, we see their name rather than com.foo.Person@12345678
.
Bear in mind that toString()
is just one way for an object to be converted to a string. Typically this output should fully describe your object in a clear and concise manner. A better toString()
for our Person
class might be:
@Override
public String toString() {
return getClass().getSimpleName() + "[name=" + name + "]";
}
Which would print, e.g., Person[name=Henry]
. That's a really useful piece of data for debugging/testing.
If you want to focus on just one aspect of your object or include a lot of jazzy formatting, you might be better to define a separate method instead, e.g. String toElegantReport() {...}
.
Many IDEs offer support for auto-generating a toString()
method, based on the fields in the class. See docs for Eclipse and IntelliJ, for example.
Several popular Java libraries offer this feature as well. Some examples include:
@ToString
annotation from Project Lombok
So you've created a nice toString()
for your class. What happens if that class is placed into an array or a collection?
If you have an array of objects, you can call Arrays.toString()
to produce a simple representation of the contents of the array. For instance, consider this array of Person
objects:
Person[] people = { new Person("Fred"), new Person("Mike") };
System.out.println(Arrays.toString(people));
// Prints: [Fred, Mike]
Note: this is a call to a static method called toString()
in the Arrays class, which is different to what we've been discussing above.
If you have a multi-dimensional array, you can use Arrays.deepToString()
to achieve the same sort of output.
Most collections will produce a pretty output based on calling .toString()
on every element.
List<Person> people = new ArrayList<>();
people.add(new Person("Alice"));
people.add(new Person("Bob"));
System.out.println(people);
// Prints [Alice, Bob]
So you just need to ensure your list elements define a nice toString()
as discussed above.
ALTER TABLE [TableName] ADD CONSTRAINT [constraintName] UNIQUE ([columns])
Try this code:
Drawable thumb = ContextCompat.getDrawable(getActivity(), R.mipmap.cir_32);
mSeekBar.setThumb(thumb);
add "distinct" after "select".
select distinct a.FirstName, a.LastName, v.District , v.LastName
from AddTbl a
inner join ValTbl v where a.LastName = v.LastName order by Firstname
Some of these answers seemed too syntax-heavy, or they produced issues on my Debian Server. This worked perfectly for me:
grep -r --include=\*.txt 'searchterm' ./
...or case-insensitive version...
grep -r -i --include=\*.txt 'searchterm' ./
grep
: command
-r
: recursively
-i
: ignore-case
--include
: all *.txt: text files (escape with \ just in case you have a directory with asterisks in the filenames)
'searchterm'
: What to search
./
: Start at current directory.
Source: PHP Revolution: How to Grep files in Linux, but only certain file extensions?
Indexing a list is done using double bracket, i.e. hypo_list[[1]]
(e.g. have a look here: http://www.r-tutor.com/r-introduction/list). BTW: read.table
does not return a table but a dataframe (see value section in ?read.table
). So you will have a list of dataframes, rather than a list of table objects. The principal mechanism is identical for tables and dataframes though.
Note: In R, the index for the first entry is a 1
(not 0
like in some other languages).
Dataframes
l <- list(anscombe, iris) # put dfs in list
l[[1]] # returns anscombe dataframe
anscombe[1:2, 2] # access first two rows and second column of dataset
[1] 10 8
l[[1]][1:2, 2] # the same but selecting the dataframe from the list first
[1] 10 8
Table objects
tbl1 <- table(sample(1:5, 50, rep=T))
tbl2 <- table(sample(1:5, 50, rep=T))
l <- list(tbl1, tbl2) # put tables in a list
tbl1[1:2] # access first two elements of table 1
Now with the list
l[[1]] # access first table from the list
1 2 3 4 5
9 11 12 9 9
l[[1]][1:2] # access first two elements in first table
1 2
9 11
Installing JDK 1.8._91 (mixed mode) is another solution for this!
Sure:
<head>
<script src="jquery-1.3.2.min.js" type="text/javascript"></script>
<script type="text/javascript">
$(function() {
$("#myTextBox").focus();
});
</script>
</head>
<body>
<input type="text" id="myTextBox">
</body>
If you insist on everything initializing as empty, you need an extra set of brackets on the inside ([[]] instead of [], since this is "a list containing 1 empty list to be duplicated" as opposed to "a list containing nothing to duplicate"):
distance=[[[[]]*n]*n]*n
It is a security issue, so to fix it simply do the following:
For myself, I would assume unsigned int is platform specific. Integer could be 8 bits, 16 bits, 32 bits or even 64 bits.
DWORD in the other hand, specifies its own size, which is Double Word. Word are 16 bits so DWORD will be known as 32 bit across all platform
Just tested this and it seems to work on a logging table
select ColumnNames, max(DateColumn) from log group by ColumnNames order by 1 desc
In Ubuntu 14.04 after $ sudo apt-get install gradle
I've got
$ whereis gradle
gradle: /usr/bin/gradle /usr/bin/X11/gradle /usr/share/gradle /usr/share/man/man1/gradle.1.gz
The path to Gradle was /usr/share/gradle
I use both Charles Proxy and Fiddler for my HTTP/HTTPS level debugging.
Pros of Charles Proxy:
Cons of Charles Proxy:
public V[] getV(DataTable dtCloned)
{
V[] objV = new V[dtCloned.Rows.Count];
MyClasses mc = new MyClasses();
int i = 0;
int intError = 0;
foreach (DataRow dr in dtCloned.Rows)
{
try
{
V vs = new V();
vs.R = int.Parse(mc.ReplaceChar(dr["r"].ToString()).Trim());
vs.S = Int64.Parse(mc.ReplaceChar(dr["s"].ToString()).Trim());
objV[i] = vs;
i++;
}
catch (Exception ex)
{
//
DataRow row = dtError.NewRow();
row["r"] = dr["r"].ToString();
row["s"] = dr["s"].ToString();
dtError.Rows.Add(row);
intError++;
}
}
return vs;
}
In:
for i in range(c/10):
You're creating a float as a result - to fix this use the int division operator:
for i in range(c // 10):
no need for the padding or the corners.
here's a sample:
<shape xmlns:android="http://schemas.android.com/apk/res/android" android:shape="oval" >
<gradient android:startColor="#FFFF0000" android:endColor="#80FF00FF"
android:angle="270"/>
</shape>
based on :
Well, one thing that worked for me is using physical android device instead of emulator. As in my PC( i5 and 4GB RAM ) the android studio takes about 700MB of memory and the emulator takes another 700. Thus the whole performance of the computer goes down. Working with a physical device saves the strain from the emulator.
If only one checkbox should be checked in the same time use RadioButtonFor instead:
@Html.RadioButtonFor(model => model.Type,1, new { @checked = "checked" }) fultime
@Html.RadioButtonFor(model => model.Type,2) party
@Html.RadioButtonFor(model => model.Type,3) next option...
If one more one could be checked in the same time use excellent extension: CheckBoxListFor:
Hope,it will help
Yesterday, I shortened the code (just added <Provider store={store}>
) and still got this invalid hook call problem. This made me suddenly realized what mistake I did: I didn't install the react-redux software in that folder.
I had installed this software in the other project folder, so I didn't realize this one also needed it. After installing it, the error is gone.
Use .remove()
$("#yourtableid tr").remove();
If you want to keep the data for future use even after removing it then you can use .detach()
$("#yourtableid tr").detach();
If the rows are children of the table then you can use child selector instead of descendant selector, like
$("#yourtableid > tr").remove();
I tested both @SWa and @Teamothy solution. I did not find the Pictures.Insert
Method in the Microsoft Documentations and feared some compatibility issues. So I guess, the older Shapes.AddPicture
Method should work on all versions. But it is slow!
On Error Resume Next
'
' first and faster method (in Office 2016)
'
With ws.Pictures.Insert(Filename:=imageFileName, LinkToFile:=msoTrue, SaveWithDocument:=msoTrue)
With .ShapeRange
.LockAspectRatio = msoTrue
.Width = destRange.Width
.height = destRange.height '222
End With
.Left = destRange.Left
.Top = destRange.Top
.Placement = 1
.PrintObject = True
.Name = imageName
End With
'
' second but slower method (in Office 2016)
'
If Err.Number <> 0 Then
Err.Clear
Dim myPic As Shape
Set myPic = ws.Shapes.AddPicture(Filename:=imageFileName, _
LinkToFile:=msoFalse, SaveWithDocument:=msoTrue, _
Left:=destRange.Left, Top:=destRange.Top, Width:=-1, height:=destRange.height)
With myPic.OLEFormat.Object.ShapeRange
.LockAspectRatio = msoTrue
.Width = destRange.Width
.height = destRange.height '222
End With
End If
Another alternative way using get method with requests:
import requests
wjdata = requests.get('url').json()
print wjdata.get('data').get('current_condition')[0].get('temp_C')
If you are using Putty, perhaps you need to set the "Connection/SSH/Auth/Allow agent forwarding" option to "true".
We can set the width for ul tag then it will align center.
#header ul {
display: block;
margin: 0 auto;
width: 420px;
max-width: 100%;
}
var lastname = "Hi";
if(typeof lastname !== "undefined")
{
alert("Hi. Variable is defined.");
}
If you stream the first list and use a filter based on contains within the second...
list1.stream()
.filter(item -> !list2.contains(item))
The next question is what code you'll add to the end of this streaming operation to further process the results... over to you.
Also, list.contains is quite slow, so you would be better with sets.
But then if you're using sets, you might find some easier operations to handle this, like removeAll
Set list1 = ...;
Set list2 = ...;
Set target = new Set();
target.addAll(list1);
target.removeAll(list2);
Given we don't know how you're going to use this, it's not really possible to advise which approach to take.
Use this:
SELECT *, ROW_NUMBER() OVER (ORDER BY id) AS RowNum FROM
(SELECT DISTINCT id FROM table WHERE fid = 64) Base
and put the "output" of a query as the "input" of another.
Using CTE:
; WITH Base AS (
SELECT DISTINCT id FROM table WHERE fid = 64
)
SELECT *, ROW_NUMBER() OVER (ORDER BY id) AS RowNum FROM Base
The two queries should be equivalent.
Technically you could
SELECT DISTINCT id, ROW_NUMBER() OVER (PARTITION BY id ORDER BY id) AS RowNum
FROM table
WHERE fid = 64
but if you increase the number of DISTINCT fields, you have to put all these fields in the PARTITION BY
, so for example
SELECT DISTINCT id, description,
ROW_NUMBER() OVER (PARTITION BY id, description ORDER BY id) AS RowNum
FROM table
WHERE fid = 64
I even hope you comprehend that you are going against standard naming conventions here, id
should probably be a primary key, so unique by definition, so a DISTINCT
would be useless on it, unless you coupled the query with some JOIN
s/UNION ALL
...
You can use --version
and in that case it's not required to redirect to stdout
java --version | head -1 | cut -f2 -d' '
From java help
-version print product version to the error stream and exit
--version print product version to the output stream and exit
There are many ways of solving this problem, and the ones listed above are the most commonly used ways of achieving the solution. I want to add two more ways, just in case someone is looking for an alternative.
index_list = [1,3]
df.take(pos)
#or
df.query('index in @index_list')
You need to change the import of your class:
import org.apache.commons.codec.binary.Base64;
And then change your class to use the Base64 class.
Here's some example code:
byte[] encodedBytes = Base64.encodeBase64("Test".getBytes());
System.out.println("encodedBytes " + new String(encodedBytes));
byte[] decodedBytes = Base64.decodeBase64(encodedBytes);
System.out.println("decodedBytes " + new String(decodedBytes));
Then read why you shouldn't use sun.* packages.
You can now use java.util.Base64
with Java 8. First, import it as you normally do:
import java.util.Base64;
Then use the Base64 static methods as follows:
byte[] encodedBytes = Base64.getEncoder().encode("Test".getBytes());
System.out.println("encodedBytes " + new String(encodedBytes));
byte[] decodedBytes = Base64.getDecoder().decode(encodedBytes);
System.out.println("decodedBytes " + new String(decodedBytes));
If you directly want to encode string and get the result as encoded string, you can use this:
String encodeBytes = Base64.getEncoder().encodeToString((userName + ":" + password).getBytes());
See Java documentation for Base64 for more.
What ever data you have inserted into one text file or log file that can put on one path in hdfs and then write a query as follows in hive
hive>load data inpath<<specify inputpath>> into table <<tablename>>;
EXAMPLE:
hive>create table foo (id int, name string)
row format delimited
fields terminated by '\t' or '|'or ','
stored as text file;
table created..
DATA INSERTION::
hive>load data inpath '/home/hive/foodata.log' into table foo;
It seems that it does not matter what timezone is on the server as long as you have the time set right for the current timezone, know the timezone of the datetime columns that you store, and are aware of the issues with daylight savings time.
On the other hand if you have control of the timezones of the servers you work with then you can have everything set to UTC internally and never worry about timezones and DST.
Here are some notes I collected of how to work with timezones as a form of cheatsheet for myself and others which might influence what timezone the person will choose for his/her server and how he/she will store date and time.
Notes:
GMT confuses seconds, which is why UTC was invented.
Warning! different regional timezones might produce the same datetime value due to daylight savings time
Internally a MySQL timestamp column is stored as UTC but when selecting a date MySQL will automatically convert it to the current session timezone.
When storing a date in a timestamp, MySQL will assume that the date is in the current session timezone and convert it to UTC for storage.
no matter what timezone the current MySQL session is in:
SELECT
CONVERT_TZ(`timestamp_field`, @@session.time_zone, '+00:00') AS `utc_datetime`
FROM `table_name`
You can also set the sever or global or current session timezone to UTC and then select the timestamp like so:
SELECT `timestamp_field` FROM `table_name`
SELECT UTC_TIMESTAMP();
SELECT UTC_TIMESTAMP;
SELECT CONVERT_TZ(NOW(), @@session.time_zone, '+00:00');
Example result: 2015-03-24 17:02:41
SELECT NOW();
SELECT CURRENT_TIMESTAMP;
SELECT CURRENT_TIMESTAMP();
SELECT @@system_time_zone;
Returns "MSK" or "+04:00" for Moscow time for example, there is (or was) a MySQL bug where if set to a numerical offset it would not adjust the Daylight savings time
SELECT TIMEDIFF(NOW(), UTC_TIMESTAMP);
It will return 02:00:00 if your timezone is +2:00.
SELECT UNIX_TIMESTAMP(NOW());
SELECT UNIX_TIMESTAMP();
SELECT UNIX_TIMESTAMP(`timestamp`) FROM `table_name`
SELECT UNIX_TIMESTAMP(CONVERT_TZ(`utc_datetime`, '+00:00', @@session.time_zone)) FROM `table_name`
SELECT FROM_UNIXTIME(`unix_timestamp_int`) FROM `table_name`
SELECT CONVERT_TZ(FROM_UNIXTIME(`unix_timestamp_int`), @@session.time_zone, '+00:00')
FROM `table_name`
SELECT DATE_ADD('1970-01-01 00:00:00',INTERVAL -957632400 SECOND)
Note: A timezone can be set in 2 formats:
Named time zones can be used only if the time zone information tables in the mysql database have been created and populated.
default_time_zone='+00:00'
or
timezone='UTC'
To see what value they are set to
SELECT @@global.time_zone;
To set a value for it use either one:
SET GLOBAL time_zone = '+8:00';
SET GLOBAL time_zone = 'Europe/Helsinki';
SET @@global.time_zone='+00:00';
SELECT @@session.time_zone;
To set it use either one:
SET time_zone = 'Europe/Helsinki';
SET time_zone = "+00:00";
SET @@session.time_zone = "+00:00";
both "@@global.time_zone variable" and "@@session.time_zone variable" might return "SYSTEM" which means that they use the timezone set in "my.cnf".
For timezone names to work (even for default-time-zone) you must setup your timezone information tables need to be populated: http://dev.mysql.com/doc/refman/5.1/en/time-zone-support.html
Note: you can not do this as it will return NULL:
SELECT
CONVERT_TZ(`timestamp_field`, TIMEDIFF(NOW(), UTC_TIMESTAMP), '+00:00') AS `utc_datetime`
FROM `table_name`
For CONVERT_TZ
to work, you need the timezone tables to be populated
SELECT * FROM mysql.`time_zone` ;
SELECT * FROM mysql.`time_zone_leap_second` ;
SELECT * FROM mysql.`time_zone_name` ;
SELECT * FROM mysql.`time_zone_transition` ;
SELECT * FROM mysql.`time_zone_transition_type` ;
If they are empty, then fill them up by running this command
mysql_tzinfo_to_sql /usr/share/zoneinfo | mysql -u root -p mysql
if this command gives you the error "data too long for column 'abbreviation' at row 1", then it might be caused by a NULL character being appended at the end of the timezone abbreviation
the fix being to run this
mysql_tzinfo_to_sql /usr/share/zoneinfo | mysql -u root -p mysql
(if the above gives error "data too long for column 'abbreviation' at row 1")
mysql_tzinfo_to_sql /usr/share/zoneinfo > /tmp/zut.sql
echo "SET SESSION SQL_MODE = '';" > /tmp/mysql_tzinfo_to.sql
cat /tmp/zut.sql >> /tmp/mysql_tzinfo_to.sql
mysql --defaults-file=/etc/mysql/my.cnf --user=verifiedscratch -p mysql < /tmp/mysql_tzinfo_to.sql
(make sure your servers dst rules are up to date zdump -v Europe/Moscow | grep 2011
https://chrisjean.com/updating-daylight-saving-time-on-linux/)
SELECT
tzn.Name AS tz_name,
tztt.Abbreviation AS tz_abbr,
tztt.Is_DST AS is_dst,
tztt.`Offset` AS `offset`,
DATE_ADD('1970-01-01 00:00:00',INTERVAL tzt.Transition_time SECOND) AS transition_date
FROM mysql.`time_zone_transition` tzt
INNER JOIN mysql.`time_zone_transition_type` tztt USING(Time_zone_id, Transition_type_id)
INNER JOIN mysql.`time_zone_name` tzn USING(Time_zone_id)
-- WHERE tzn.Name LIKE 'Europe/Moscow' -- Moscow has weird DST changes
ORDER BY tzt.Transition_time ASC
CONVERT_TZ
also applies any necessary DST changes based on the rules in the above tables and the date that you use.
Note:
According to the docs, the value you set for time_zone does not change, if you set it as "+01:00" for example, then the time_zone will be set as an offset from UTC, which does not follow DST, so it will stay the same all year round.
Only the named timezones will change time during daylight savings time.
Abbreviations like CET
will always be a winter time and CEST
will be summer time while +01:00 will always be UTC
time + 1 hour and both won't change with DST.
The system
timezone will be the timezone of the host machine where mysql is installed (unless mysql fails to determine it)
You can read more about working with DST here
related questions:
Sources:
var input = '/var/www/site/Brand new document.docx';
//remove space
input = input.replace(/\s/g, '');
//make string lower
input = input.toLowerCase();
alert(input);
You cannot directly save a Python file as an exe and expect it to work -- the computer cannot automatically understand whatever code you happened to type in a text file. Instead, you need to use another program to transform your Python code into an exe.
I recommend using a program like Pyinstaller. It essentially takes the Python interpreter and bundles it with your script to turn it into a standalone exe that can be run on arbitrary computers that don't have Python installed (typically Windows computers, since Linux tends to come pre-installed with Python).
To install it, you can either download it from the linked website or use the command:
pip install pyinstaller
...from the command line. Then, for the most part, you simply navigate to the folder containing your source code via the command line and run:
pyinstaller myscript.py
You can find more information about how to use Pyinstaller and customize the build process via the documentation.
You don't necessarily have to use Pyinstaller, though. Here's a comparison of different programs that can be used to turn your Python code into an executable.
Check this example of post the array of different types
function PostArray() {
var myObj = [
{ 'fstName': 'name 1', 'lastName': 'last name 1', 'age': 32 }
, { 'fstName': 'name 2', 'lastName': 'last name 1', 'age': 33 }
];
var postData = JSON.stringify({ lst: myObj });
console.log(postData);
$.ajax({
type: "POST",
url: urlWebMethods + "/getNames",
data: postData,
contentType: "application/json; charset=utf-8",
dataType: "json",
success: function (response) {
alert(response.d);
},
failure: function (msg) {
alert(msg.d);
}
});
}
If using a WebMethod in C# you can retrieve the data like this
[WebMethod]
public static string getNames(IEnumerable<object> lst)
{
string names = "";
try
{
foreach (object item in lst)
{
Type myType = item.GetType();
IList<PropertyInfo> props = new List<PropertyInfo>(myType.GetProperties());
foreach (PropertyInfo prop in props)
{
if(prop.Name == "Values")
{
Dictionary<string, object> dic = item as Dictionary<string, object>;
names += dic["fstName"];
}
}
}
}
catch (Exception ex)
{
names = "-1";
}
return names;
}
Example in POST an array of objects with $.ajax to C# WebMethod
This answer is pretty similar to Oz.'s, using <chrono>
for C++ -- I didn't grab it from Oz. though...
I picked up the original snippet at the bottom of this page, and slightly modified it to be a complete console app. I love using this lil' ol' thing. It's fantastic if you do a lot of scripting and need a reliable tool in Windows to get the epoch in actual milliseconds without resorting to using VB, or some less modern, less reader-friendly code.
#include <chrono>
#include <iostream>
int main() {
unsigned __int64 now = std::chrono::duration_cast<std::chrono::milliseconds>(std::chrono::system_clock::now().time_since_epoch()).count();
std::cout << now << std::endl;
return 0;
}
Yes there is a difference.
jQuery('#id').css("display","block")
will always set the element you want to show as block.
jQuery('#id').show()
will et is to what display type it initially was, display: inline for example.
See Jquery Doc
PHP escapes forward slashes by default which is probably why this appears so commonly. I'm not sure why, but possibly because embedding the string "</script>"
inside a <script>
tag is considered unsafe.
This functionality can be disabled by passing in the JSON_UNESCAPED_SLASHES
flag but most developers will not use this since the original result is already valid JSON.
if you have many networks attached to you OS, yo must especify one of this network in the bind-addres from my.conf file. an example:
[mysqld]
bind-address = 127.100.10.234
this ip is from a ethX configuration.
url : www.mydomain.com/user1/1234
$.params = window.location.href.split("/"); $.params[$.params.length-1];
You can split based on your query string separator
Single quote must be there, since date converted to character.
Select employee_id, count(*) From Employee Where to_char(employee_date_hired, 'DD-MON-YY') > '31-DEC-95';
I would use expr match
instead of =~
:
expr match "$date" "[0-9]\{8\}" >/dev/null && echo yes
This is better than the currently accepted answer of using =~
because =~
will also match empty strings, which IMHO it shouldn't. Suppose badvar
is not defined, then [[ "1234" =~ "$badvar" ]]; echo $?
gives (incorrectly) 0
, while expr match "1234" "$badvar" >/dev/null ; echo $?
gives correct result 1
.
We have to use >/dev/null
to hide expr match
's output value, which is the number of characters matched or 0 if no match found. Note its output value is different from its exit status. The exit status is 0 if there's a match found, or 1 otherwise.
Generally, the syntax for expr
is:
expr match "$string" "$lead"
Or:
expr "$string" : "$lead"
where $lead
is a regular expression. Its exit status
will be true (0) if lead
matches the leading slice of string
(Is there a name for this?). For example expr match "abcdefghi" "abc"
exits true
, but expr match "abcdefghi" "bcd"
exits false
. (Credit to @Carlo Wood for pointing out this.
What is ECMAScript i.e. ES?
ECMAScript is a standard for a scripting language and the Javascript language is based on the ECMAScript standard.
Is Javascript exactly the same as ECMAScript?
JavaScript = ECMAScript + DOM API;
DOM API like: document.getElementById('id');
Do other languages use the ECMAScript standard?
Why is it called ECMAScript?
The window is only displayed once the mainloop is entered. So you won't see any changes you make in your while True
block preceding the line root.mainloop()
.
GUI interfaces work by reacting to events while in the mainloop. Here's an example where the StringVar is also connected to an Entry widget. When you change the text in the Entry widget it automatically changes in the Label.
from tkinter import *
root = Tk()
var = StringVar()
var.set('hello')
l = Label(root, textvariable = var)
l.pack()
t = Entry(root, textvariable = var)
t.pack()
root.mainloop() # the window is now displayed
I like the following reference: tkinter 8.5 reference: a GUI for Python
Here is a working example of what you were trying to do:
from tkinter import *
from time import sleep
root = Tk()
var = StringVar()
var.set('hello')
l = Label(root, textvariable = var)
l.pack()
for i in range(6):
sleep(1) # Need this to slow the changes down
var.set('goodbye' if i%2 else 'hello')
root.update_idletasks()
root.update
Enter event loop until all pending events have been processed by Tcl
.
[[ ]] double brackets are unsuported under certain version of SunOS and totally unsuported inside function declarations by : GNU bash, version 2.02.0(1)-release (sparc-sun-solaris2.6)
Following madlep's answer you can also just copy one directory from another branch with the directory blob.
git checkout other-branch app/**
As to the op's question if you've only changed one file in there this will work fine ^_^
Initialize all your array elements to null first, then look for the null to find the empty slot
As mentioned in other answers, all of the following will work for the standard string-based syntax.
WAITFOR DELAY '02:00' --Two hours
WAITFOR DELAY '00:02' --Two minutes
WAITFOR DELAY '00:00:02' --Two seconds
WAITFOR DELAY '00:00:00.200' --Two tenths of a seconds
There is also an alternative method of passing it a DATETIME
value. You might think I'm confusing this with WAITFOR TIME
, but it also works for WAITFOR DELAY
.
Considerations for passing DATETIME
:
'1900-01-01'
).DATETIME
than to properly format a VARCHAR
.How to wait for 2 seconds:
--Example 1
DECLARE @Delay1 DATETIME
SELECT @Delay1 = '1900-01-01 00:00:02.000'
WAITFOR DELAY @Delay1
--Example 2
DECLARE @Delay2 DATETIME
SELECT @Delay2 = dateadd(SECOND, 2, convert(DATETIME, 0))
WAITFOR DELAY @Delay2
A note on waiting for TIME
vs DELAY
:
Have you ever noticed that if you accidentally pass WAITFOR TIME
a date that already passed, even by just a second, it will never return? Check it out:
--Example 3
DECLARE @Time1 DATETIME
SELECT @Time1 = getdate()
WAITFOR DELAY '00:00:01'
WAITFOR TIME @Time1 --WILL HANG FOREVER
Unfortunately, WAITFOR DELAY
will do the same thing if you pass it a negative DATETIME
value (yes, that's a thing).
--Example 4
DECLARE @Delay3 DATETIME
SELECT @Delay3 = dateadd(SECOND, -1, convert(DATETIME, 0))
WAITFOR DELAY @Delay3 --WILL HANG FOREVER
However, I would still recommend using WAITFOR DELAY
over a static time because you can always confirm your delay is positive and it will stay that way for however long it takes your code to reach the WAITFOR
statement.
A better method is using strrpos + substr (faster than explode for that) :
$userfile_name = $_FILES['image']['name'];
$userfile_extn = substr($userfile_name, strrpos($userfile_name, '.')+1);
But, to check the type of a file, using mime_content_type is a better way : http://www.php.net/manual/en/function.mime-content-type.php
use continue keyword .
EX:
for(int i = 0; i < 10; i++){
if(i == 5){
continue;
}
}
By 'the wiz' I'm assuming you're talking about the 'SQL Server Import and Export Wizard'. (I'm also pretty new so I don't understand most questions, much less most answers, but I think I get this one). If so couldn't you take the spreadsheet, or a copy of it, delete the columns you don't want imported and then use the wizard?
I've always found the ability to do what I need with it and I'm only on SQL Server 2000 (not sure how other versions differ).
Edit: In fact I'm looking at it now and I seem to be able to choose which columns I want to map to which rows in an existing table. On the 'Select Source Tables and Views' screen I check the datasheet I'm using, select the 'Destination' then click the 'Edit...' button. From there you can choose the Excel column and the table column to map it to.
The Header
field of the Request is public. You may do this :
req.Header.Set("name", "value")
vector <int> numbers {10,20,30,40};
vector <int> *ptr {nullptr};
ptr = &numbers;
for(auto num: *ptr){
cout << num << endl;
}
cout << (*ptr).at(2) << endl; // 20
cout << "-------" << endl;
cout << ptr -> at(2) << endl; // 20
Or another old school solution:
var someArray = [9, 2, 5];
let i = 0;
for (var item of someArray) {
console.log(item); // 9,2,5
i++;
}
Not sure why they removed the option to just right click on the database and restore like you could in SQL Server Management Studio 2008 and earlier, but as mentioned above you can restore from a .BAK
file with:
RESTORE DATABASE YourDB FROM DISK = 'D:BackUpYourBaackUpFile.bak' WITH REPLACE
But you will want WITH REPLACE
instead of WITH RESTORE
if your moving it from one server to another.
Quick work around
Simply enclose the list within a new list, as done for col2 in the data frame below. The reason it works is that python takes the outer list (of lists) and converts it into a column as if it were containing normal scalar items, which is lists in our case and not normal scalars.
mydict={'col1':[1,2,3],'col2':[[1, 4], [2, 5], [3, 6]]}
data=pd.DataFrame(mydict)
data
col1 col2
0 1 [1, 4]
1 2 [2, 5]
2 3 [3, 6]
Your format specifier is incorrect. From the printf()
man page on my machine:
0
A zero '0
' character indicating that zero-padding should be used rather than blank-padding. A '-
' overrides a '0
' if both are used;Field Width: An optional digit string specifying a field width; if the output string has fewer characters than the field width it will be blank-padded on the left (or right, if the left-adjustment indicator has been given) to make up the field width (note that a leading zero is a flag, but an embedded zero is part of a field width);
Precision: An optional period, '
.
', followed by an optional digit string giving a precision which specifies the number of digits to appear after the decimal point, for e and f formats, or the maximum number of characters to be printed from a string; if the digit string is missing, the precision is treated as zero;
For your case, your format would be %09.3f
:
#include <stdio.h>
int main(int argc, char **argv)
{
printf("%09.3f\n", 4917.24);
return 0;
}
Output:
$ make testapp
cc testapp.c -o testapp
$ ./testapp
04917.240
Note that this answer is conditional on your embedded system having a printf()
implementation that is standard-compliant for these details - many embedded environments do not have such an implementation.
Have you tried..
if (getActivity() instanceof NameOfYourActivity){
//Do something
}
I think it should be R.color.black
Also take a look at Converting android color string in runtime into int
This way:
db.collection_name.find().toArray().then(...function...)
<?php
$selectdata ="select fromd,tod from register where username='$username'";
$q=mysqli_query($conm,$selectdata);
$row=mysqli_fetch_array($q);
$startdate=$row['fromd'];
$stdate=date('Y', strtotime($startdate));
$endate=$row['tod'];
$enddate=date('Y', strtotime($endate));
$years = range ($stdate,$enddate);
echo '<select name="years" class="form-control">';
echo '<option>SELECT</option>';
foreach($years as $year)
{ echo '<option value="'.$year.'"> '.$year.' </option>'; }
echo '</select>'; ?>
functionName() : ReturnType { ... }
Ignore this answer for now. The other answers, particularly that of aix, are mostly correct. Over the long term they're the way to bet. And if you have enough data (on one benchmark on one machine, it seemed to be about one million entries) ArrayList and LinkedList do currently work as advertized. However, there are some fine points that apply in the early 21st century.
Modern computer technology seems, by my testing, to give an enormous edge to arrays. Elements of an array can be shifted and copied at insane speeds. As a result arrays and ArrayList will, in most practical situations, outperform LinkedList on inserts and deletes, often dramatically. In other words, ArrayList will beat LinkedList at its own game.
The downside of ArrayList is it tends to hang onto memory space after deletions, where LinkedList gives up space as it gives up entries.
The bigger downside of arrays and ArrayList is they fragment free memory and overwork the garbage collector. As an ArrayList expands, it creates new, bigger arrays, copies the old array to the new one, and frees the old one. Memory fills with big contiguous chunks of free memory that are not big enough for the next allocation. Eventually there's no suitable space for that allocation. Even though 90% of memory is free, no individual piece is big enough to do the job. The GC will work frantically to move things around, but if it takes too long to rearrange the space, it will throw an OutOfMemoryException. If it doesn't give up, it can still slow your program way down.
The worst of it is this problem can be hard to predict. Your program will run fine one time. Then, with a bit less memory available, with no warning, it slows or stops.
LinkedList uses small, dainty bits of memory and GC's love it. It still runs fine when you're using 99% of your available memory.
So in general, use ArrayList for smaller sets of data that are not likely to have most of their contents deleted, or when you have tight control over creation and growth. (For instance, creating one ArrayList that uses 90% of memory and using it without filling it for the duration of the program is fine. Continually creating and freeing ArrayList instances that use 10% of memory will kill you.) Otherwise, go with LinkedList (or a Map of some sort if you need random access). If you have very large collections (say over 100,000 elements), no concerns about the GC, and plan lots of inserts and deletes and no random access, run a few benchmarks to see what's fastest.
My program with two arguments, args[0] and args[1]:
public static void main(String[] args) throws Exception {
System.out.println(args);
String host = args[0];
System.out.println(host);
int port = Integer.parseInt(args[1]);
my build.gradle
run {
if ( project.hasProperty("appArgsWhatEverIWant") ) {
args Eval.me(appArgsWhatEverIWant)
}
}
my terminal prompt:
gradle run -PappArgsWhatEverIWant="['localhost','8080']"
Here is Java 8 solution
public static boolean contains(final int[] arr, final int key) {
return Arrays.stream(arr).anyMatch(i -> i == key);
}
int i=1;
while (true) {
WebElementdisplay=driver.findElement(By.id("__bar"+i+"-btnGo"));
System.out.println(display);
if (display.isDisplayed()==true)
{
System.out.println("inside if statement"+i);
driver.findElement(By.id("__bar"+i+"-btnGo")).click();
break;
}
else
{
System.out.println("inside else statement"+ i);
i=i+1;
}
}
If you want to merge the filters (eg. CSV and Excel files), use this formula:
OpenFileDialog of = new OpenFileDialog();
of.Filter = "CSV files (*.csv)|*.csv|Excel Files|*.xls;*.xlsx";
Or if you want to see XML or PDF files in one time use this:
of.Filter = @" XML or PDF |*.xml;*.pdf";
You can even add the size of the terms (indexed terms). Have a look at Elastic Search: how to see the indexed data
You're missing semi-colons after your javascript lines. Also, window.location
should have .href
or .replace
etc to redirect - See this post for more information.
echo '<script type="text/javascript">';
echo 'alert("review your answer");';
echo 'window.location.href = "index.php";';
echo '</script>';
For clarity, try leaving PHP tags for this:
?>
<script type="text/javascript">
alert("review your answer");
window.location.href = "index.php";
</script>
<?php
NOTE: semi colons on seperate lines are optional, but encouraged - however as in the comments below, PHP won't break lines in the first example here but will in the second, so semi-colons are required in the first example.
this
is the key (vs evt.target). See example.
document.body.addEventListener("click", function (evt) {_x000D_
console.dir(this);_x000D_
//note evt.target can be a nested element, not the body element, resulting in misfires_x000D_
console.log(evt.target);_x000D_
alert("body clicked");_x000D_
});
_x000D_
<h4>This is a heading.</h4>_x000D_
<p>this is a paragraph.</p>
_x000D_
$lines = array();
while (($line = fgets($file)) !== false)
array_push($lines, $line);
Obviously, you'll need to create a file handle first and store it in $file
.
You can use bookmarklets (javascript code in a bookmark) - this also means they sync across devices.
I have loads - I prefix the name with zzz, so they are eazy to type in to the address bar and show in drop down predictions.
To get them to operate on a page you need to go to the page and then in the address bar type the bookmarklet name - this will cause the bookmarklet to execute in the context of the page.
edit
Just to highlight - for this to work, the bookmarklet name must be typed into the address bar while the page you want to operate in is being displayed - if you go off to select the bookmarklet in some other way the page context gets lost, and the bookmarklet operates on a new empty page.
I use zzzpocket - send to pocket. zzztwitter tweet this page zzzmail email this page zzzpressthis send this page to wordpress zzztrello send this page to trello and more...
and it works in chrome whatever platform I am currently logged on to.
From a blog on running sample variance calculations, where the mean is also calculated using Welford's method:
Too bad we can't upload SVG images.
1 - @@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@
<input type="date" "myDate">
@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@
var today = new Date();
$('#myDate').val(today.getFullYear() + '-' + ('0' + (today.getMonth() + 1)).slice(-2) + '-' + ('0' + today.getDate()).slice(-2));
2 - @@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@
<input type="datatime-local" id="myLocalDataTime" step="1">
@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@
var today = new Date();
$('#myLocalDataTime').val(today.getFullYear() + '-' + ('0' + (today.getMonth() + 1)).slice(-2) + '-' + ('0' + today.getDate()).slice(-2)+'T'+today.getHours()+':'+today.getMinutes());
why don't you store your values in HTML5 storage objects such as sessionStorage
or localStorage
, visit HTML5 Storage Doc to get more details. Using this you can store intermediate values temporarily/permanently locally and then access your values later.
To store values for a session:
sessionStorage.getItem('label')
sessionStorage.setItem('label', 'value')
or more permanently:
localStorage.getItem('label')
localStorage.setItem('label', 'value')
So you can store (temporarily) form data between multiple pages using HTML5 storage objects which you can even retain after reload..
If using SSH config file, my issue was that ~/.ssh/config
was not specified correct. From Enabling SSH connections over HTTPS
Host github.com
Hostname ssh.github.com
Port 443
Register for a notification prior to calling the class method.
Swift code:
NSNotificationCenter.defaultCenter().addObserver(self, selector: "displayAlert", name: "ErrorOccured", object: nil)
In the displayAlert
instance method you could display your alert.
Here is a complete example showing how to use the **
operator to pass values from a dictionary as keyword arguments.
>>> def f(x=2):
... print(x)
...
>>> new_x = {'x': 4}
>>> f() # default value x=2
2
>>> f(x=3) # explicit value x=3
3
>>> f(**new_x) # dictionary value x=4
4
If checked:
$( "SELECTOR" ).attr( "checked" ) // Returns ‘true’ if present on the element, returns undefined if not present
$( "SELECTOR" ).prop( "checked" ) // Returns true if checked, false if unchecked.
$( "SELECTOR" ).is( ":checked" ) // Returns true if checked, false if unchecked.
Get the checked val:
$( "SELECTOR:checked" ).val()
Get the checked val numbers:
$( "SELECTOR:checked" ).length
Check or uncheck checkbox
$( "SELECTOR" ).prop( "disabled", false );
$( "SELECTOR" ).prop( "checked", true );
Use Jquery functions
<Button id="myPselector" data-id="1234">HI</Button>
console.log($("#myPselector").attr('data-id'));
This solution is similar to walid2mi (thank you for inspiration), but allows the standard console input by the Read-Host cmdlet.
pros:
cons:
Commented and runable example of batch-ps-script.cmd:
<# : Begin batch (batch script is in commentary of powershell v2.0+)
@echo off
: Use local variables
setlocal
: Change current directory to script location - useful for including .ps1 files
cd %~dp0
: Invoke this file as powershell expression
powershell -executionpolicy remotesigned -Command "Invoke-Expression $([System.IO.File]::ReadAllText('%~f0'))"
: Restore environment variables present before setlocal and restore current directory
endlocal
: End batch - go to end of file
goto:eof
#>
# here start your powershell script
# example: include another .ps1 scripts (commented, for quick copy-paste and test run)
#. ".\anotherScript.ps1"
# example: standard input from console
$variableInput = Read-Host "Continue? [Y/N]"
if ($variableInput -ne "Y") {
Write-Host "Exit script..."
break
}
# example: call standard powershell command
Get-Item .
Snippet for .cmd file:
<# : batch script
@echo off
setlocal
cd %~dp0
powershell -executionpolicy remotesigned -Command "Invoke-Expression $([System.IO.File]::ReadAllText('%~f0'))"
endlocal
goto:eof
#>
# here write your powershell commands...
This is my version of the extension methods posted here and in similar questions. This validates the ticks value in an easy to read way and preserves the DateTimeKind of the original DateTime instance. (This has subtle but relevant side effects when storing to a database like MongoDB.)
If the true goal is to truncate a DateTime to a specified value (i.e. Hours/Minutes/Seconds/MS) I recommend implementing this extension method in your code instead. It ensures that you can only truncate to a valid precision and it preserves the important DateTimeKind metadata of your original instance:
public static DateTime Truncate(this DateTime dateTime, long ticks)
{
bool isValid = ticks == TimeSpan.TicksPerDay
|| ticks == TimeSpan.TicksPerHour
|| ticks == TimeSpan.TicksPerMinute
|| ticks == TimeSpan.TicksPerSecond
|| ticks == TimeSpan.TicksPerMillisecond;
// https://stackoverflow.com/questions/21704604/have-datetime-now-return-to-the-nearest-second
return isValid
? DateTime.SpecifyKind(
new DateTime(
dateTime.Ticks - (dateTime.Ticks % ticks)
),
dateTime.Kind
)
: throw new ArgumentException("Invalid ticks value given. Only TimeSpan tick values are allowed.");
}
Then you can use the method like this:
DateTime dateTime = DateTime.UtcNow.Truncate(TimeSpan.TicksPerMillisecond);
dateTime.Kind => DateTimeKind.Utc
def factorial(n):
if n < 2:
return 1
return n * factorial(n - 1)
Presuming 17px header height
List css:
height: 100%;
padding-top: 17px;
Header css:
height: 17px;
float: left;
width: 100%;
int indexOf()
can be used. It returns -1 if no matching finds
2018
there is native API for that
element.style.removeProperty(propery)
Since I've asked this question, I've started using python-symmetric-jsonrpc. It is quite good, can be used between python and non-python software and follow the JSON-RPC standard. But it lacks some examples.
Here are some differences:
You can call app.render
on root level and res.render
only inside a route/middleware.
app.render
always returns the html
in the callback function, whereas res.render
does so only when you've specified the callback function as your third parameter. If you call res.render
without the third parameter/callback function the rendered html is sent to the client with a status code of 200
.
Take a look at the following examples.
app.render
app.render('index', {title: 'res vs app render'}, function(err, html) {
console.log(html)
});
// logs the following string (from default index.jade)
<!DOCTYPE html><html><head><title>res vs app render</title><link rel="stylesheet" href="/stylesheets/style.css"></head><body><h1>res vs app render</h1><p>Welcome to res vs app render</p></body></html>
res.render
without third parameter
app.get('/render', function(req, res) {
res.render('index', {title: 'res vs app render'})
})
// also renders index.jade but sends it to the client
// with status 200 and content-type text/html on GET /render
res.render
with third parameter
app.get('/render', function(req, res) {
res.render('index', {title: 'res vs app render'}, function(err, html) {
console.log(html);
res.send('done');
})
})
// logs the same as app.render and sends "done" to the client instead
// of the content of index.jade
res.render
uses app.render
internally to render template files.
You can use the render
functions to create html emails. Depending on your structure of your app, you might not always have acces to the app
object.
For example inside an external route:
app.js
var routes = require('routes');
app.get('/mail', function(req, res) {
// app object is available -> app.render
})
app.get('/sendmail', routes.sendmail);
routes.js
exports.sendmail = function(req, res) {
// can't use app.render -> therefore res.render
}
The solution works good except if you have a Web Service.
You would need to do the Following as the Description Attribute is not serializable.
[DataContract]
public enum ControlSelectionType
{
[EnumMember(Value = "Not Applicable")]
NotApplicable = 1,
[EnumMember(Value = "Single Select Radio Buttons")]
SingleSelectRadioButtons = 2,
[EnumMember(Value = "Completely Different Display Text")]
SingleSelectDropDownList = 3,
}
public static string GetDescriptionFromEnumValue(Enum value)
{
EnumMemberAttribute attribute = value.GetType()
.GetField(value.ToString())
.GetCustomAttributes(typeof(EnumMemberAttribute), false)
.SingleOrDefault() as EnumMemberAttribute;
return attribute == null ? value.ToString() : attribute.Value;
}
nchar(10) is a fixed-length Unicode string of length 10. nvarchar(10) is a variable-length Unicode string with a maximum length of 10. Typically, you would use the former if all data values are 10 characters and the latter if the lengths vary.
JPanel jPanel = new JPanel();
jPanel.setBorder(BorderFactory.createLineBorder(Color.black));
Here not only jPanel, you can add border to any Jcomponent
repositories {
mavenCentral()
}
I added this in build.gradle, and it worked.
You must add setActionCommand
to the JRadioButton
then just do:
String entree = entreeGroup.getSelection().getActionCommand();
Example:
java = new JRadioButton("Java");
java.setActionCommand("Java");
c = new JRadioButton("C/C++");
c.setActionCommand("c");
System.out.println("Selected Radio Button: " +
buttonGroup.getSelection().getActionCommand());
@MaxPython The answer above is missing ":"
try:
#do something
except:
# print 'error/exception'
def printError(e): print e
This will work too:
DateTime today = new DateTime.now();
String dateSlug ="${today.year.toString()}-${today.month.toString().padLeft(2,'0')}-${today.day.toString().padLeft(2,'0')}";
print(dateSlug);
Fragments are of particular use in some cases like where we want to keep a navigation drawer in all our pages. You can inflate a frame layout with whatever fragment you want and still have access to the navigation drawer.
If you had used an activity, you would have had to keep the drawer in all activities which makes for redundant code. This is one interesting use of a fragment.
I'm new to Android and still think a fragment is helpful this way.
Simple solution is to embed inside of a <textarea>
element, which will preserve both the formatting and the angle brackets. I have also removed the border with style="border:none;"
which makes the textarea invisible.
Here is a sample: http://jsfiddle.net/y9fqf/1/
If additional table doesn't fit, you can write your own function for translation.
The plus of sql function over case is, that you can use it in various places, and keep translation logic in one place.
Another possible solution that we can use 2 HTML element to store brief and complete text. Hence we can show/hide appropriate HTML element :-)
<p class="content_description" id="brief_description" style="display: block;"> blah blah blah blah blah </p><p class="content_description" id="complete_description" style="display: none;"> blah blah blah blah blah with complete text </p>
/* jQuery code to toggle both paragraph. */
(function(){
$('#toggle_content').on(
'click', function(){
$("#complete_description").toggle();
$("#brief_description").toggle();
if ($("#complete_description").css("display") == "none") {
$(this).text('More...');
} else{
$(this).text('Less...');
}
}
);
})();
You should stop the task that you have scheduled on the timer: Your timer:
Timer t = new Timer();
TimerTask tt = new TimerTask() {
@Override
public void run() {
//do something
};
}
t.schedule(tt,1000,1000);
In order to stop:
tt.cancel();
t.cancel(); //In order to gracefully terminate the timer thread
Notice that just cancelling the timer will not terminate ongoing timertasks.
As mentioned before, filesaver is a great package to work with files on the client side. But, it is not do well with large files. StreamSaver.js is an alternative solution (which is pointed in FileServer.js) that can handle large files:
const fileStream = streamSaver.createWriteStream('filename.txt', size);
const writer = fileStream.getWriter();
for(var i = 0; i < 100; i++){
var uint8array = new TextEncoder("utf-8").encode("Plain Text");
writer.write(uint8array);
}
writer.close()
As long as the macros in question are in the same workbook and you verify the names exist, you can call those macros from any other module by name, not by module.
So if in Module1 you had two macros Macro1 and Macro2 and in Module2 you had Macro3 and Macro 4, then in another macro you could call them all:
Sub MasterMacro()
Call Macro1
Call Macro2
Call Macro3
Call Macro4
End Sub
This prints all files, recursively, from the current directory.
find "$PWD" | awk /.ogg/ # filter .ogg files by regex
find "$PWD" | grep .ogg # filter .ogg files by term
find "$PWD" | ack .ogg # filter .ogg files by regex/term using https://github.com/petdance/ack2
If you want to list all the files currently being tracked under the branch master
, you could use this command:
git ls-tree -r master --name-only
If you want a list of files that ever existed (i.e. including deleted files):
git log --pretty=format: --name-only --diff-filter=A | sort - | sed '/^$/d'
You can try to use as well this functions to capture StdErr StdOut and return code.
def runShell(String command){
def responseCode = sh returnStatus: true, script: "${command} &> tmp.txt"
def output = readFile(file: "tmp.txt")
if (responseCode != 0){
println "[ERROR] ${output}"
throw new Exception("${output}")
}else{
return "${output}"
}
}
Notice:
&>name means 1>name 2>name -- redirect stdout and stderr to the file name
The function distinct()
in the dplyr
package performs arbitrary duplicate removal, either from specific columns/variables (as in this question) or considering all columns/variables. dplyr
is part of the tidyverse
.
Data and package
library(dplyr)
dat <- data.frame(a = rep(c(1,2),4), b = rep(LETTERS[1:4],2))
Remove rows duplicated in a specific column (e.g., columna
)
Note that .keep_all = TRUE
retains all columns, otherwise only column a
would be retained.
distinct(dat, a, .keep_all = TRUE)
a b
1 1 A
2 2 B
Remove rows that are complete duplicates of other rows:
distinct(dat)
a b
1 1 A
2 2 B
3 1 C
4 2 D
json.loads
& ast.literal_eval
seems to be working but simple list within config is treating each character as byte so returning even square bracket....
meaning if config has fieldvalue = [1,2,3,4,5]
then config.read(*.cfg)
config['fieldValue'][0]
returning [
in place of 1