Same as @Altered-Ego but with txt.file:
Get-Content "C:\ServerList.txt"
machineA,machineB,machineC,machineD
$ServerList = Get-Content "C:\ServerList.txt"
$currentTrustHost=(get-item WSMan:\localhost\Client\TrustedHosts).value
if ( ($currentTrustHost).Length -gt "0" ) {
$currentTrustHost+= ,$ServerList
set-item WSMan:\localhost\Client\TrustedHosts –value $currentTrustHost -Force -ErrorAction SilentlyContinue
}
else {
$currentTrustHost+= $ServerList
set-item WSMan:\localhost\Client\TrustedHosts –value $currentTrustHost -Force -ErrorAction SilentlyContinue
}
The "-ErrorAction SilentlyContinue
" is required in old PS version to avoid fake error message:
PS C:\Windows\system32> get-item WSMan:\localhost\Client\TrustedHosts
WSManConfig: Microsoft.WSMan.Management\WSMan::localhost\Client
Type Name SourceOfValue Value
---- ---- ------------- -----
System.String TrustedHosts machineA,machineB,machineC,machineD
Use Hosts Commander. It's simple and powerful. Translated description (from russian) here.
hosts add another.dev 192.168.1.1 # Remote host
hosts add test.local # 127.0.0.1 used by default
hosts set myhost.dev # new comment
hosts rem *.local
hosts enable local*
hosts disable localhost
...and many others...
Usage:
hosts - run hosts command interpreter
hosts <command> <params> - execute hosts command
Commands:
add <host> <aliases> <addr> # <comment> - add new host
set <host|mask> <addr> # <comment> - set ip and comment for host
rem <host|mask> - remove host
on <host|mask> - enable host
off <host|mask> - disable host
view [all] <mask> - display enabled and visible, or all hosts
hide <host|mask> - hide host from 'hosts view'
show <host|mask> - show host in 'hosts view'
print - display raw hosts file
format - format host rows
clean - format and remove all comments
rollback - rollback last operation
backup - backup hosts file
restore - restore hosts file from backup
recreate - empty hosts file
open - open hosts file in notepad
adb shell
su
mount -o rw,remount -t yaffs2 /dev/block/mtdblock3 /system
This assumes your /system is yaffs2 and that it's at /dev/block/mtdblock3 the easier/better way to do this on most Android phones is:
adb shell
su
mount -o remount,rw /system
Done. This just says remount /system read-write, you don't have to specify filesystem or mount location.
I know it's been a while this has been posted, but with iOS 7.1, a few things have changed.
So far, if you are developing an App, you MUST have a valid SSL certificate recognized by Apple, otherwise you will get an error message on you iDevice. No more self-signed certificates. See here a list:
http://support.apple.com/kb/ht5012
Additionally, if you are here, it means that you are trying to make you iDevice resolve a name (to your https server), on a test or development environment.
Instead of using squid, which is a great application, you could simply run a very basic DNS server like dnsmasq. It will use your hosts file as a first line of name resolution, so, you can basically fool your iDevice there, saying that www.blah.com is 192.168.10.10.
The configuration file is as simple as 3 to 4 lines, and you can even configure its internal DHCP server if you want.
Here is mine:
listen-address=192.168.10.35
domain-needed
bogus-priv
no-dhcp-interface=eth0
local=/localnet/
Of course you have to configure networking on your iDevice to use that DNS (192.168.10.35 in my case), or just start using DHCP from that server anyway, after properly configured.
Additionally, if dnsmasq cannot resolve the name internally, it uses your regular DNS server (like 8.8.8.8) to resolve it for you. VERY simple, elegant, and solved my problems with iDevice App installation in-house.
By the way, solves many name resolution problems with regular macs (OS X) as well.
Now, my rant: bloody Apple. Making a device safe should not include castrating the operating system or the developers.
Here is my modification of @rashy above. The script does the following:
This is the script:
@echo off
TITLE Modifying your HOSTS file
COLOR F0
ECHO.
:: BatchGotAdmin
:-------------------------------------
REM --> Check for permissions
>nul 2>&1 "%SYSTEMROOT%\system32\cacls.exe" "%SYSTEMROOT%\system32\config\system"
REM --> If error flag set, we do not have admin.
if '%errorlevel%' NEQ '0' (
echo Requesting administrative privileges...
goto UACPrompt
) else ( goto gotAdmin )
:UACPrompt
echo Set UAC = CreateObject^("Shell.Application"^) > "%temp%\getadmin.vbs"
set params = %*:"="
echo UAC.ShellExecute "cmd.exe", "/c %~s0 %params%", "", "runas", 1 >> "%temp%\getadmin.vbs"
"%temp%\getadmin.vbs"
del "%temp%\getadmin.vbs"
exit /B
:gotAdmin
pushd "%CD%"
CD /D "%~dp0"
:--------------------------------------
:LOOP
SET Choice=
SET /P Choice="Do you want to modify HOSTS file ? (Y/N)"
IF NOT '%Choice%'=='' SET Choice=%Choice:~0,1%
ECHO.
IF /I '%Choice%'=='Y' GOTO ACCEPTED
IF /I '%Choice%'=='N' GOTO REJECTED
ECHO Please type Y (for Yes) or N (for No) to proceed!
ECHO.
GOTO Loop
:REJECTED
ECHO Your HOSTS file was left unchanged>>%systemroot%\Temp\hostFileUpdate.log
ECHO Finished.
GOTO END
:ACCEPTED
setlocal enabledelayedexpansion
::Create your list of host domains
set LIST=(diqc.oca wiki.oca)
::Set the ip of the domains you set in the list above
set diqc.oca=192.168.111.6
set wiki.oca=192.168.111.4
:: deletes the parentheses from LIST
set _list=%LIST:~1,-1%
::ECHO %WINDIR%\System32\drivers\etc\hosts > tmp.txt
for %%G in (%_list%) do (
set _name=%%G
set _value=!%%G!
SET NEWLINE=^& echo.
ECHO Carrying out requested modifications to your HOSTS file
::strip out this specific line and store in tmp file
type %WINDIR%\System32\drivers\etc\hosts | findstr /v !_name! > tmp.txt
::re-add the line to it
ECHO %NEWLINE%^!_value! !_name!>>tmp.txt
::overwrite host file
copy /b/v/y tmp.txt %WINDIR%\System32\drivers\etc\hosts
del tmp.txt
)
ipconfig /flushdns
ECHO.
ECHO.
ECHO Finished, you may close this window now.
ECHO You should now open Chrome and go to "chrome://net-internals/#dns" (without quotes)
ECHO then click the "clear host cache" button
GOTO END
:END
ECHO.
ping -n 11 192.0.2.2 > nul
EXIT
hosts file:
1.2.3.4 google.com
1.2.3.4 - ip of your server.
Run script on the server for redirecting users to url that you want.
EDIT: While this is currently accepted answer, readers might find this other answer by user John Hart more adapted to their needs. It uses an option which, according to user Ken, was introduced in version 7.21.3 (which was released in December 2010, i.e. after this initial answer).
In your edited question, you're using the URL as the host name, whereas it needs to be the host name only.
Try:
curl -H 'Host: project1.loc' http://127.0.0.1/something
where project1.loc
is just the host name and 127.0.0.1
is the target IP address.
(If you're using curl from a library and not on the command line, make sure you don't put http://
in the Host
header.)
I made this simple tool to take the place of hosts. Regular expressions are supported. https://github.com/stackia/DNSAgent
A sample configuration:
[
{
"Pattern": "^.*$",
"NameServer": "8.8.8.8"
},
{
"Pattern": "^(.*\\.googlevideo\\.com)|((.*\\.)?(youtube|ytimg)\\.com)$",
"Address": "203.66.168.119"
},
{
"Pattern": "^.*\\.cn$",
"NameServer": "114.114.114.114"
},
{
"Pattern": "baidu.com$",
"Address": "127.0.0.1"
}
]
On Windows, open command prompt and type tracert google.com
and press enter, or on Linux, open terminal and type nslookup google.com
and press enter:
Server: 127.0.1.1
Address: 127.0.1.1#53
Non-authoritative answer:
Name: google.com
Address: 74.125.236.199
Name: google.com
Address: 74.125.236.201
Name: google.com
Address: 74.125.236.194
Name: google.com
Address: 74.125.236.198
Name: google.com
Address: 74.125.236.206
Name: google.com
Address: 74.125.236.193
Name: google.com
Address: 74.125.236.196
Name: google.com
Address: 74.125.236.192
Name: google.com
Address: 74.125.236.197
Name: google.com
Address: 74.125.236.195
Name: google.com
Address: 74.125.236.200
Here is the configuration for those trying to accomplish the original goal (wildcards all pointing to same codebase -- install nothing, dev environment ie, XAMPP)
file: /etc/hosts (non-windows)
127.0.0.1 example.local
file: /XAMPP/etc/httpd.conf
# Virtual hosts
Include etc/extra/httpd-vhosts.conf
file: XAMPP/etc/extra/httpd-vhosts.conf
<VirtualHost *:80>
ServerAdmin [email protected]
DocumentRoot "/path_to_XAMPP/htdocs"
ServerName example.local
ServerAlias *.example.local
# SetEnv APP_ENVIRONMENT development
# ErrorLog "logs/example.local-error_log"
# CustomLog "logs/example.local-access_log" common
</VirtualHost>
restart apache
save as whatever.pac wherever you want to and then load the file in the browser's network>proxy>auto_configuration settings (reload if you alter this)
function FindProxyForURL(url, host) {
if (shExpMatch(host, "*example.local")) {
return "PROXY example.local";
}
return "DIRECT";
}
I have great news: this will be in Compose 1.3!
I'm using it in the current RC (RC1) like this:
rng:
build: rng
extra_hosts:
seed: 1.2.3.4
tree: 4.3.2.1
You can not modify the host file in the image using echo
in RUN
step because docker daemon will maintain the file(/etc/hosts) and its content(hosts entry) when you start a container from the image.
However following can be used to achieve the same:
ENTRYPOINT ["/bin/sh", "-c" , "echo 192.168.254.10 database-server >> /etc/hosts && echo 192.168.239.62 redis-ms-server >> /etc/hosts && exec java -jar ./botblocker.jar " ]
Key to notice here is the use of exec
command as docker documentation suggests. Use of exec will make the java command as PID 1 for the container. Docker interrupts will only respond to that.
See https://docs.docker.com/engine/reference/builder/#entrypoint
Use logging module to debug and follow your app
Here is how I managed to log to file and to console / stdout
import logging
logging.basicConfig(level=logging.INFO,
format='%(asctime)s - %(levelname)s - %(message)s',
filename='logs_file',
filemode='w')
# Until here logs only to file: 'logs_file'
# define a new Handler to log to console as well
console = logging.StreamHandler()
# optional, set the logging level
console.setLevel(logging.INFO)
# set a format which is the same for console use
formatter = logging.Formatter('%(asctime)s - %(levelname)s - %(message)s')
# tell the handler to use this format
console.setFormatter(formatter)
# add the handler to the root logger
logging.getLogger('').addHandler(console)
# Now, we can log to both ti file and console
logging.info('Jackdaws love my big sphinx of quartz.')
logging.info('Hello world')
read it from source: https://docs.python.org/2/howto/logging-cookbook.html
I think this should work:
#include <time.h>
clock_t start = clock(), diff;
ProcessIntenseFunction();
diff = clock() - start;
int msec = diff * 1000 / CLOCKS_PER_SEC;
printf("Time taken %d seconds %d milliseconds", msec/1000, msec%1000);
Use the default version:
Collections.sort(myarrayList);
Of course this requires that your Elements implement Comparable
, but the same holds true for the version you mentioned.
BTW: you should use generics in your code, that way you get compile-time errors if your class doesn't implement Comparable. And compile-time errors are much better than the runtime errors you'll get otherwise.
List<MyClass> list = new ArrayList<MyClass>();
// now fill up the list
// compile error here unless MyClass implements Comparable
Collections.sort(list);
I would create a String prototype method:
String.prototype.isAlphaNumeric = function() {
var regExp = /^[A-Za-z0-9]+$/;
return (this.match(regExp));
};
Then, the usage would be:
var TCode = document.getElementById('TCode').value;
return TCode.isAlphaNumeric()
Here is Very simple answer. :D
<div class="col-lg-2" v-for="pic in pics">
<img :src="`../assets/${pic}.png`" :alt="pic">
</div>
If the child is always going to be a specific tag then you could do it like this
function test(el)
{
var children = el.getElementsByTagName('div');// any tag could be used here..
for(var i = 0; i< children.length;i++)
{
if (children[i].getAttribute('id') == 'child') // any attribute could be used here
{
// do what ever you want with the element..
// children[i] holds the element at the moment..
}
}
}
You need to open the connection first:
SQLConnection.Open();
I wanted solutions with as much support of old browsers as possible. Otherwise I'd say either the currentScript or the data attributes method would be most stylish.
This is the only of these methods not brought up here yet. Particularly, if for some reason you have great amounts of data, then the best option might be:
localStorage
/* On the original page, you add an inline JS Script: */
<script>
localStorage.setItem('data-1', 'I got a lot of data.');
localStorage.setItem('data-2', 'More of my data.');
localStorage.setItem('data-3', 'Even more data.');
</script>
/* External target JS Script, where your data is needed: */
var data1 = localStorage.getItem('data-1');
var data2 = localStorage.getItem('data-2');
var data3 = localStorage.getItem('data-3');
localStorage has full modern browser support, and surprisingly good support of older browsers too, back to IE 8, Firefox 3,5 and Safari 4 [eleven years back] among others.
If you don't have a lot of data, but still want extensive browser support, maybe the best option is:
Meta tags [by Robidu]
/* HTML: */
<meta name="yourData" content="Your data is here" />
/* JS: */
var data1 = document.getElementsByName('yourData')[0].content;
The flaw of this, is that the correct place to put meta tags [up until HTML 4] is in the head tag, and you might not want this data up there. To avoid that, or putting meta tags in body, you could use a:
Hidden paragraph
/* HTML: */
<p hidden id="yourData">Your data is here</p>
/* JS: */
var yourData = document.getElementById('yourData').innerHTML;
For even more browser support, you could use a CSS class instead of the hidden attribute:
/* CSS: */
.hidden {
display: none;
}
/* HTML: */
<p class="hidden" id="yourData">Your data is here</p>
Not a keyboard shortcut, but with your mouse, you can use forward and backwards buttons on your mouse to go to previous locations in your code and return to your current location.
I'm not sure if this is fully answering the question (it isn't), but it's the solution I came up with for my very similar problem. I know some of the other solutions look shorter but they seem to use SUBSTRING_INDEX() way more than necessary. Here I try to just use LOCATE() just once per delimiter.
-- *****************************************************************************
-- test_PVreplace
DROP FUNCTION IF EXISTS test_PVreplace;
delimiter //
CREATE FUNCTION test_PVreplace (
str TEXT, -- String to do search'n'replace on
pv TEXT -- Parameter/value pairs 'p1=v1|p2=v2|p3=v3'
)
RETURNS TEXT
-- Replace specific tags with specific values.
sproc:BEGIN
DECLARE idx INT;
DECLARE idx0 INT DEFAULT 1; -- 1-origined, not 0-origined
DECLARE len INT;
DECLARE sPV TEXT;
DECLARE iPV INT;
DECLARE sP TEXT;
DECLARE sV TEXT;
-- P/V string *must* end with a delimiter.
IF (RIGHT (pv, 1) <> '|') THEN
SET pv = CONCAT (pv, '|');
END IF;
-- Find all the P/V pairs.
SELECT LOCATE ('|', pv, idx0) INTO idx;
WHILE (idx > 0) DO
SET len = idx - idx0;
SELECT SUBSTRING(pv, idx0, len) INTO sPV;
-- Found a P/V pair. Break it up.
SELECT LOCATE ('=', sPV) INTO iPV;
IF (iPV = 0) THEN
SET sP = sPV;
SET sV = '';
ELSE
SELECT SUBSTRING(sPV, 1, iPV-1) INTO sP;
SELECT SUBSTRING(sPV, iPV+1) INTO sV;
END IF;
-- Do the substitution(s).
SELECT REPLACE (str, sP, sV) INTO str;
-- Do next P/V pair.
SET idx0 = idx + 1;
SELECT LOCATE ('|', pv, idx0) INTO idx;
END WHILE;
RETURN (str);
END//
delimiter ;
SELECT test_PVreplace ('%one% %two% %three%', '%one%=1|%two%=2|%three%=3');
SELECT test_PVreplace ('%one% %two% %three%', '%one%=I|%two%=II|%three%=III');
SELECT test_PVreplace ('%one% %two% %three% - %one% %two% %three%', '%one%=I|%two%=II|%three%=III');
SELECT test_PVreplace ('%one% %two% %three% - %one% %two% %three%', '');
SELECT test_PVreplace ('%one% %two% %three% - %one% %two% %three%', NULL);
SELECT test_PVreplace ('%one% %two% %three%', '%one%=%two%|%two%=%three%|%three%=III');
Say your model is 'Shop'
class Shop(models.Model):
street = models.CharField(max_length=150)
city = models.CharField(max_length=150)
# some of your models may have explicit ordering
class Meta:
ordering = ('city')
Since you may have the Meta
class ordering
attribute set, you can use order_by()
without parameters to clear any ordering when using distinct()
. See the documentation under order_by
()
If you don’t want any ordering to be applied to a query, not even the default ordering, call order_by() with no parameters.
and distinct()
in the note where it discusses issues with using distinct()
with ordering.
To query your DB, you just have to call:
models.Shop.objects.order_by().values('city').distinct()
It returns a dictionnary
or
models.Shop.objects.order_by().values_list('city').distinct()
This one returns a ValuesListQuerySet
which you can cast to a list
.
You can also add flat=True
to values_list
to flatten the results.
See also: Get distinct values of Queryset by field
Note The accepted is perfectly fine - but wanted to add a version4 example because they are different enough.
import React from 'react';
import { Link } from 'react-router';
export default class Nav extends React.Component {
render() {
return (
<nav className="Nav">
<div className="Nav__container">
<Link to="/" className="Nav__brand">
<img src="logo.svg" className="Nav__logo" />
</Link>
<div className="Nav__right">
<ul className="Nav__item-wrapper">
<li className="Nav__item">
<Link className="Nav__link" to="/path1">Link 1</Link>
</li>
<li className="Nav__item">
<Link className="Nav__link" to="/path2">Link 2</Link>
</li>
<li className="Nav__item">
<Link className="Nav__link" to="/path3">Link 3</Link>
</li>
</ul>
</div>
</div>
</nav>
);
}
}
import React from 'react';
import { Link, Switch, Route } from 'react-router';
import Nav from './nav';
import Page1 from './page1';
import Page2 from './page2';
import Page3 from './page3';
export default class App extends React.Component {
render() {
return (
<div className="App">
<Router>
<div>
<Nav />
<Switch>
<Route exactly component={Landing} pattern="/" />
<Route exactly component={Page1} pattern="/path1" />
<Route exactly component={Page2} pattern="/path2" />
<Route exactly component={Page3} pattern="/path3" />
<Route component={Page404} />
</Switch>
</div>
</Router>
</div>
);
}
}
Alternatively, if you want a more dynamic nav, you can look at the excellent v4 docs: https://reacttraining.com/react-router/web/example/sidebar
A few people have asked about a page without the Nav, such as a login page. I typically approach it with a wrapper Route component
import React from 'react';
import { Link, Switch, Route } from 'react-router';
import Nav from './nav';
import Page1 from './page1';
import Page2 from './page2';
import Page3 from './page3';
const NavRoute = ({exact, path, component: Component}) => (
<Route exact={exact} path={path} render={(props) => (
<div>
<Header/>
<Component {...props}/>
</div>
)}/>
)
export default class App extends React.Component {
render() {
return (
<div className="App">
<Router>
<Switch>
<NavRoute exactly component={Landing} pattern="/" />
<Route exactly component={Login} pattern="/login" />
<NavRoute exactly component={Page1} pattern="/path1" />
<NavRoute exactly component={Page2} pattern="/path2" />
<NavRoute component={Page404} />
</Switch>
</Router>
</div>
);
}
}
Routes monitor the $location
service and respond to changes in URL (typically through the hash). To "activate" a route, you simply change the URL. The easiest way to do that is with anchor tags.
<a href="#/home">Go Home</a>
<a href="#/about">Go to About</a>
Nothing more complicated is needed. If, however, you must do this from code, the proper way is by using the $location
service:
$scope.go = function ( path ) {
$location.path( path );
};
Which, for example, a button could trigger:
<button ng-click="go('/home')"></button>
Assuming you are talking about the ActionEvent
class, then there is a big difference between the two methods.
getActionCommand()
gives you a String representing the action command. The value is component specific; for a JButton
you have the option to set the value with setActionCommand(String command)
but for a JTextField
if you don't set this, it will automatically give you the value of the text field. According to the javadoc this is for compatability with java.awt.TextField
.
getSource()
is specified by the EventObject
class that ActionEvent
is a child of (via java.awt.AWTEvent
). This gives you a reference to the object that the event came from.
Edit:
Here is a example. There are two fields, one has an action command explicitly set, the other doesn't. Type some text into each then press enter.
public class Events implements ActionListener {
private static JFrame frame;
public static void main(String[] args) {
frame = new JFrame("JTextField events");
frame.getContentPane().setLayout(new FlowLayout());
JTextField field1 = new JTextField(10);
field1.addActionListener(new Events());
frame.getContentPane().add(new JLabel("Field with no action command set"));
frame.getContentPane().add(field1);
JTextField field2 = new JTextField(10);
field2.addActionListener(new Events());
field2.setActionCommand("my action command");
frame.getContentPane().add(new JLabel("Field with an action command set"));
frame.getContentPane().add(field2);
frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
frame.setSize(220, 150);
frame.setResizable(false);
frame.setVisible(true);
}
@Override
public void actionPerformed(ActionEvent evt) {
String cmd = evt.getActionCommand();
JOptionPane.showMessageDialog(frame, "Command: " + cmd);
}
}
Under POSIX, the exit()
, _exit()
and _Exit()
functions are defined to:
So, if you arrange for the parent process to be a controlling process for its process group, the child should get a SIGHUP signal when the parent exits. I'm not absolutely sure that happens when the parent crashes, but I think it does. Certainly, for the non-crash cases, it should work fine.
Note that you may have to read quite a lot of fine print - including the Base Definitions (Definitions) section, as well as the System Services information for exit()
and setsid()
and setpgrp()
- to get the complete picture. (So would I!)
the qplot() function in the ggplot2 package is very simple to use and provides an elegant solution that includes confidence bands. For instance,
qplot(x,y, geom='smooth', span =0.5)
produces
In pom.xml file of the project,
<parent>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-parent</artifactId>
<version>X.X.X.RELEASE</version>
<relativePath> ../PROJECTNAME/pom.xml</relativePath>
</parent>
Pointing relativepath to the same MAVEN project POM file solved the issue for me.
Just for feature readers finding this question. I found that the accepted answer works fine as long as you have a given path, but if you leave it blank it will fail in IE. Here is what I came up with:
function post(path, data, callback) {
"use strict";
var request = new XMLHttpRequest();
if (path === "") {
path = "/";
}
request.open('POST', path, true);
request.setRequestHeader('Content-Type', 'application/x-www-form-urlencoded; charset=UTF-8');
request.onload = function (d) {
callback(d.currentTarget.response);
};
request.send(serialize(data));
}
You can you it like so:
post("", {orem: ipsum, name: binny}, function (response) {
console.log(respone);
})
All the other answer accounts only for http
URLs. If the URL is https
, then do as follows,
Open launchsettings.json
under Properties of the API project.
Change the sslPort
under iisSettings -> iisExpress
A sample launchsettings.json
will look as follows
{
"iisSettings": {
"iisExpress": {
"applicationUrl": "http://localhost:12345",
"sslPort": 98765 <== Change_This
}
},
It will depend on what are you plotting.
import matplotlib.pyplot as plt
x=['long_text_for_a_label_a',
'long_text_for_a_label_b',
'long_text_for_a_label_c']
y=[1,2,3]
myplot = plt.plot(x,y)
for item in myplot.axes.get_xticklabels():
item.set_rotation(90)
For pandas and seaborn that give you an Axes object:
df = pd.DataFrame(x,y)
#pandas
myplot = df.plot.bar()
#seaborn
myplotsns =sns.barplot(y='0', x=df.index, data=df)
# you can get xticklabels without .axes cause the object are already a
# isntance of it
for item in myplot.get_xticklabels():
item.set_rotation(90)
If you need to rotate labels you may need change the font size too, you can use font_scale=1.0
to do that.
Use CHARINDEX
. Perhaps make user function. If you use this split often.
I would create this function:
CREATE FUNCTION [dbo].[Split]
(
@String VARCHAR(max),
@Delimiter varCHAR(1)
)
RETURNS TABLE
AS
RETURN
(
WITH Split(stpos,endpos)
AS(
SELECT 0 AS stpos, CHARINDEX(@Delimiter,@String) AS endpos
UNION ALL
SELECT endpos+1, CHARINDEX(@Delimiter,@String,endpos+1)
FROM Split
WHERE endpos > 0
)
SELECT 'INT_COLUMN' = ROW_NUMBER() OVER (ORDER BY (SELECT 1)),
'STRING_COLUMN' = SUBSTRING(@String,stpos,COALESCE(NULLIF(endpos,0),LEN(@String)+1)-stpos)
FROM Split
)
GO
Actually there is no any cancel()
or dismiss()
method from AlertDialog.Builder Class.
So Instead of AlertDialog.Builder optionDialog
use AlertDialog
instance.
Like,
AlertDialog optionDialog = new AlertDialog.Builder(this).create();
Now, Just call optionDialog.dismiss();
background.setOnClickListener(new OnClickListener() {
public void onClick(View v) {
SetBackground();
// here I want to dismiss it after SetBackground() method
optionDialog.dismiss();
}
});
For JPA fixed using EntityManager merge() instead of persist()
EntityManager em = getEntityManager();
try {
em.getTransaction().begin();
em.merge(fieldValue);
em.getTransaction().commit();
} catch (Exception e) {
//do smthng
} finally {
em.close();
}
You could only convert a JSON array into a CSV file.
Lets say, you have a JSON like the following :
{"infile": [{"field1": 11,"field2": 12,"field3": 13},
{"field1": 21,"field2": 22,"field3": 23},
{"field1": 31,"field2": 32,"field3": 33}]}
Lets see the code for converting it to csv :
import java.io.File;
import java.io.IOException;
import org.apache.commons.io.FileUtils;
import org.json.CDL;
import org.json.JSONArray;
import org.json.JSONException;
import org.json.JSONObject;
public class JSON2CSV {
public static void main(String myHelpers[]){
String jsonString = "{\"infile\": [{\"field1\": 11,\"field2\": 12,\"field3\": 13},{\"field1\": 21,\"field2\": 22,\"field3\": 23},{\"field1\": 31,\"field2\": 32,\"field3\": 33}]}";
JSONObject output;
try {
output = new JSONObject(jsonString);
JSONArray docs = output.getJSONArray("infile");
File file=new File("/tmp2/fromJSON.csv");
String csv = CDL.toString(docs);
FileUtils.writeStringToFile(file, csv);
} catch (JSONException e) {
e.printStackTrace();
} catch (IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}
}
Now you got the CSV generated from JSON.
It should look like this:
field1,field2,field3
11,22,33
21,22,23
31,32,33
The maven dependency was like,
<dependency>
<groupId>org.json</groupId>
<artifactId>json</artifactId>
<version>20090211</version>
</dependency>
Update Dec 13, 2019:
Updating the answer, since now we can support complex JSON Arrays as well.
import java.nio.file.Files;
import java.nio.file.Paths;
import com.github.opendevl.JFlat;
public class FlattenJson {
public static void main(String[] args) throws Exception {
String str = new String(Files.readAllBytes(Paths.get("path_to_imput.json")));
JFlat flatMe = new JFlat(str);
//get the 2D representation of JSON document
flatMe.json2Sheet().headerSeparator("_").getJsonAsSheet();
//write the 2D representation in csv format
flatMe.write2csv("path_to_output.csv");
}
}
dependency and docs details are in link
When the Resolve Conflicts->Content Menu are disabled, one may be on the Pending files list. We need to select the Conflicted files option from the drop down (top)
hope it helps
Maybe cheating a little, but the MAC Address of a machines Ethernet adapter rarely changes without the motherboard changing these days.
tarxz() { tar cf - "$1" | xz -4e > "$1".tar.xz ; }
tarxz name_of_directory
(Notice, not name_of_directory/
)
If you want to use compression options for xz
, or if you are using tar
on MacOS, you probably want to avoid the tar -cJf
syntax.
According to man xz
, the way to do this is:
tar cf - filename | xz -4e > filename.tar.xz
Because I liked Wojciech Adam Koszek's format, but not information:
c
creates a new archive for the specified files.f
reads from a directory (best to put this second because -cf
!= -fc
)-
outputs to Standard Output|
pipes output to the next commandxz -4e
calls xz
with the -4e
compression option. (equal to -4
--extreme
)> filename.tar.xz
directs the tarred and compressed file to filename.tar.xz
where -4e
is, use your own compression options.
I often use -k
to --keep
the original file and -9
for really heavy compression. -z
to manually set xz
to zip, though it defaults to zipping if not otherwise directed.
To echo Rafael van Horn, to uncompress & untar (see note below):
xz -dc filename.tar.xz | tar x
Note: unlike Rafael's answer, use xz -dc
instead of catxz
. The docs recommend this in case you are using this for scripting. Best to have a habit of using -d
or --decompress
instead of unxz
as well. However, if you must, using those commands from the command line is fine.
This is very easy step to import any 3rd party lib or jar file into your project
paste copied jar file into lib folder
right click on this jar file and then click on build Path->Add to Build Path
even still you are getting error in your project then Clean the Project and Build it.
As this Spring's Jira ticket, it is an intentional design. But the following code works for me.
public static Map<String, Object> getAllKnownProperties(Environment env) {
Map<String, Object> rtn = new HashMap<>();
if (env instanceof ConfigurableEnvironment) {
for (PropertySource<?> propertySource : ((ConfigurableEnvironment) env).getPropertySources()) {
if (propertySource instanceof EnumerablePropertySource) {
for (String key : ((EnumerablePropertySource) propertySource).getPropertyNames()) {
rtn.put(key, propertySource.getProperty(key));
}
}
}
}
return rtn;
}
If you know the exact position an :nth-child()
-based exclusion of all following siblings would work.
ul li:not(:nth-child(n+3))
Which would select all li
s before the 3rd (e.g. 1st and 2nd). But, in my opinion this looks ugly and has a very tight usecase.
You also could select the nth-child right-to-left:
ul li:nth-child(-n+2)
Which does the same.
You should add your barButtonItem in - (void)pushViewController:(UIViewController *)viewController animated:(BOOL)animated
method.
For Windows:
C:\mingw-w64\x86_64-8.1.0-win32-seh-rt_v6-rev0\mingw64\bin\
"includePath": [ "C:/mingw-w64/x86_64-8.1.0-win32-seh-rt_v6-rev0/mingw64/include/" ]
, as this is the path from where the compiler fetches the library to be included in your program.
My guess is that you have a problem since you don't close your select-tag after the loop. Could that do the trick?
<select name="owner">
<?php
$sql = mysqli_query($connection, "SELECT username FROM users");
while ($row = $sql->fetch_assoc()){
echo "<option value=\"owner1\">" . $row['username'] . "</option>";
}
?>
</select>
If you don't want to use the PRI* macros, another approach for printing ANY integer type is to cast to intmax_t
or uintmax_t
and use "%jd"
or %ju
, respectively. This is especially useful for POSIX (or other OS) types that don't have PRI* macros defined, for instance off_t
.
You can try Jake Wharton's library - https://github.com/JakeWharton/Android-ViewPagerIndicator
The class declaration should be in the header file (Or in the source file if not shared).
File: foo.h
class foo
{
private:
static int i;
};
But the initialization should be in source file.
File: foo.cpp
int foo::i = 0;
If the initialization is in the header file then each file that includes the header file will have a definition of the static member. Thus during the link phase you will get linker errors as the code to initialize the variable will be defined in multiple source files.
The initialisation of the static int i
must be done outside of any function.
Note: Matt Curtis: points out that C++ allows the simplification of the above if the static member variable is of const int type (e.g. int
, bool
, char
). You can then declare and initialize the member variable directly inside the class declaration in the header file:
class foo
{
private:
static int const i = 42;
};
Here is a simple snippet that read's in a json
text file from a dictionary. Note that your json file must follow the json standard, so it has to have "
double quotes rather then '
single quotes.
Your JSON dump.txt File:
{"test":"1", "test2":123}
Python Script:
import json
with open('/your/path/to/a/dict/dump.txt') as handle:
dictdump = json.loads(handle.read())
Well, for starters, you might not wanna overuse echo, because (as is the problem in your case) you can very easily make mistakes on quotation marks.
This would fix your problem:
echo "<a href=\"http://www.whatever.com/$param\">Click Here</a>";
but you should really do this
<?php
$param = "test";
?>
<a href="http://www.whatever.com/<?php echo $param; ?>">Click Here</a>
This probably means that python doesn't know where PyQt5 is located. To check, go into the interactive terminal and type:
import sys
print sys.path
What you probably need to do is add the directory that contains the PyQt5 module to your PYTHONPATH
environment variable. If you use bash
, here's how:
~/.bashrc
export PYTHONPATH=/path/to/PyQt5/directory:$PYTHONPATH
where /path/to/PyQt5/directory
is the path to the folder where the PyQt5 library is located.
I think using NOW()
function is incorrect for getting time difference. Because by NOW()
function every time your are calculating the past 24 hours.
You must use CURDATE()
instead.
function your_function($time, $your_date) {
if ($time == 'today') {
$timeSQL = ' Date($your_date)= CURDATE()';
}
if ($time == 'week') {
$timeSQL = ' YEARWEEK($your_date)= YEARWEEK(CURDATE())';
}
if ($time == 'month') {
$timeSQL = ' Year($your_date)=Year(CURDATE()) AND Month(`your_date`)= Month(CURDATE())';
}
$Sql = "SELECT * FROM jokes WHERE ".$timeSQL
return $Result = $this->db->query($Sql)->result_array();
}
Typically, you would use a hash table and function object, both available in Boost, TR1 and C++0x.
void func1() {
}
std::unordered_map<std::string, std::function<void()>> hash_map;
hash_map["Value1"] = &func1;
// .... etc
hash_map[mystring]();
This is a little more overhead at runtime but a bajillion times more maintainable. Hash tables offer O(1) insertion, lookup, and etc, which makes them the same complexity as the assembly-style jump-table.
If you don't want to bother with a file, you can do something like this in your code:
static
{
Logger rootLogger = Logger.getRootLogger();
rootLogger.setLevel(Level.INFO);
rootLogger.addAppender(new ConsoleAppender(
new PatternLayout("%-6r [%p] %c - %m%n")));
}
Tab to tab right, shift-tab to tab left.
In our databases we use an enum that ensures we pass it either TRUE or FALSE. If you do it either of the first two ways it is too easy to either start adding new meaning to the integer without going through a proper design, or ending up with that char field having Y, y, N, n, T, t, F, f values and having to remember which section of code uses which table and which version of true it is using.
Set the auto increment field to NULL or 0 if you want it to be auto magically assigned...
Press Ctrl+H (Replace)
Select Extended
from SearchMode
Put \r\n\r\n
in Find What
Put \r\n
in ReplaceWith
Click on Replace All
You could use...
<option <?= ($temp == $value) ? "SELECTED" : "" ?> >$value</opton>
Edit: I thought I was looking at PHP questions... Sorry.
If someone is in search for a quick minimal solution,
import signal
# The code which crashes program on interruption
signal.signal(signal.SIGINT, call_this_function_if_interrupted)
# The code skipped if interrupted
I use a ternary in a printf like this:
printf("%s\n", b?"true":"false");
If you macro it :
B2S(b) ((b)?"true":"false")
then you need to make sure whatever you pass in as 'b'
doesn't have any side effects. And don't forget the brackets around the 'b'
as you could get compile errors.
From terminal, find all eclipse directories with
sudo find / -iname "Eclipse"
Delete those directories with rm
command.
Reference docs of docker: https://docs.docker.com/install/linux/linux-postinstall/#configure-where-the-docker-daemon-listens-for-connections
There are 2 ways in configuring the docker daemon port
1) Configuring at /etc/default/docker file:
DOCKER_OPTS="-H tcp://127.0.0.1:5000 -H unix:///var/run/docker.sock"
2) Configuring at /etc/docker/daemon.json:
{
"debug": true,
"hosts": ["tcp://127.0.0.1:5000", "unix:///var/run/docker.sock"]
}
If the docker default socket is not configured Docker will wait for infinite period.i.e
Waiting for /var/run/docker.sock
Waiting for /var/run/docker.sock
Waiting for /var/run/docker.sock
Waiting for /var/run/docker.sock
Waiting for /var/run/docker.sock
NOTE : BUT DON'T CONFIGURE IN BOTH THE CONFIGURATION FILES, the following error may occur :
Waiting for /var/run/docker.sock
unable to configure the Docker daemon with file /etc/docker/daemon.json: the following directives are specified both as a flag and in the configuration file: hosts: (from flag: [tcp://127.0.0.1:5000 unix:///var/run/docker.sock], from file: tcp://127.0.0.1:5000)
The reason for adding both the user port[ tcp://127.0.0.1:5000] and default docker socket[unix:///var/run/docker.sock] is that the user port enables the access to the docker APIs whereas the default socket enables the CLI. In case the default port[unix:///var/run/docker.sock] is not mentioned in /etc/default/docker file the following error may occur:
# docker ps
Cannot connect to the Docker daemon at unix:///var/run/docker.sock. Is the docker daemon running?
This error is not because that the docker is not running, but because of default docker socket is not enabled.
Once the configuration is enabled restart the docker service and verify the docker port is enabled or not:
# netstat -tunlp | grep -i 5000
tcp 0 0 127.0.0.1:5000 0.0.0.0:* LISTEN 31661/dockerd
Applicable for Docker Version 17.04, may vary with different versions of docker.
You have to insert the call into the AWT message queue so all the timing happens correctly, otherwise it will not dispatch the correct event sequence, especially in a multi-threaded program. When this is done you may handle the resulting event sequence exactly as you would if the user has clicked on the [x] button for an OS suppled decorated JFrame.
public void closeWindow()
{
if(awtWindow_ != null) {
EventQueue.invokeLater(new Runnable() {
public void run() {
awtWindow_.dispatchEvent(new WindowEvent(awtWindow_, WindowEvent.WINDOW_CLOSING));
}
});
}
}
I need to see your submit button html tag for better help. I am not familiar with php and how it handles the postback, but I guess depending on what you want to do, you have three options:
onclick
button on the client-side: In this case you only need to call a javascript function.function foo() {_x000D_
alert("Submit button clicked!");_x000D_
return true;_x000D_
}
_x000D_
<input type="submit" value="submit" onclick="return foo();" />
_x000D_
If you want to handle the click on the server-side, you should first make sure that the form tag method attribute is set to post
:
<form method="post">
You can use onsubmit
event from form
itself to bind your function to it.
<form name="frm1" method="post" onsubmit="return greeting()">_x000D_
<input type="text" name="fname">_x000D_
<input type="submit" value="Submit">_x000D_
</form>
_x000D_
Subtracting 2 Date objects gives you the difference in milliseconds, e.g.:
var diff = Math.abs(new Date('2011/10/09 12:00') - new Date('2011/10/09 00:00'));
Math.abs
is used to be able to use the absolute difference (so new Date('2011/10/09 00:00') - new Date('2011/10/09 12:00')
gives the same result).
Dividing the result by 1000 gives you the number of seconds. Dividing that by 60 gives you the number of minutes. To round to whole minutes, use Math.floor
or Math.ceil
:
var minutes = Math.floor((diff/1000)/60);
In this example the result will be 720
Use control+option+L to auto import the package and auto remove unused packages on Mac
This solved my problem in ubuntu 18.04 when trying to use python3.6:
rm -rf ~/.local/lib/python3.6
You can move the folder to another place using mv instead of deleting it too, for testing:
mv ~/.local/lib/python3.6 ./python3.6_old
To list all local groups which have users assigned to them, use this command:
cut -d: -f1 /etc/group | sort
For more info- > Unix groups, Cut command, sort command
Try the DrawEllipse method instead.
Something like this
<html>
<body style="height:100%; width:100%">
<div id="header" style="position:absolute; top:0px; left:0px; height:200px; right:0px;overflow:hidden;">
</div>
<div id="content" style="position:absolute; top:200px; bottom:200px; left:0px; right:0px; overflow:auto;">
</div>
<div id="footer" style="position:absolute; bottom:0px; height:200px; left:0px; right:0px; overflow:hidden;">
</div>
</body>
</html>
I believe you are using the
echo Text >> Example.txt
function?
If so the answer would be simply adding a "." (Dot) directly after the echo with nothing else there.
Example:
echo Blah
echo Blah 2
echo. #New line is added
echo Next Blah
The problem has to do with the async attribute in the script tag. The Callback Function is trying to call "initMap()" when it doesn't really exists by the time the request finished.
To solve this I placed the Goole Maps Api Script bellow the script where my initMap function was declared.
Hope this helps
SELECT MAX(ID) FROM tablename LIMIT 1
Use this query to find the highest ID in the MySQL table.
I guess something like this would work:
Add System.ServiceProcess
to your project references (It's on the .NET tab).
using System.ServiceProcess;
ServiceController sc = new ServiceController(SERVICENAME);
switch (sc.Status)
{
case ServiceControllerStatus.Running:
return "Running";
case ServiceControllerStatus.Stopped:
return "Stopped";
case ServiceControllerStatus.Paused:
return "Paused";
case ServiceControllerStatus.StopPending:
return "Stopping";
case ServiceControllerStatus.StartPending:
return "Starting";
default:
return "Status Changing";
}
Edit: There is also a method sc.WaitforStatus()
that takes a desired status and a timeout, never used it but it may suit your needs.
Edit: Once you get the status, to get the status again you will need to call sc.Refresh()
first.
Reference: ServiceController object in .NET.
You need to set it in the value itself, not in the prepared statement SQL string.
So, this should do for a prefix-match:
notes = notes
.replace("!", "!!")
.replace("%", "!%")
.replace("_", "!_")
.replace("[", "![");
PreparedStatement pstmt = con.prepareStatement(
"SELECT * FROM analysis WHERE notes LIKE ? ESCAPE '!'");
pstmt.setString(1, notes + "%");
or a suffix-match:
pstmt.setString(1, "%" + notes);
or a global match:
pstmt.setString(1, "%" + notes + "%");
Combine the SUBSTRING()
, LEFT()
, and CHARINDEX()
functions.
SELECT LEFT(SUBSTRING(YOUR_FIELD,
CHARINDEX(';', YOUR_FIELD) + 1, 100),
CHARINDEX('[', YOUR_FIELD) - 1)
FROM YOUR_TABLE;
This assumes your field length will never exceed 100, but you can make it smarter to account for that if necessary by employing the LEN()
function. I didn't bother since there's enough going on in there already, and I don't have an instance to test against, so I'm just eyeballing my parentheses, etc.
UPDATE: Google stopped support for this method, that now returns a 404 (not found) error.
All this urls fetch the profile picture of a user:
https://www.google.com/s2/photos/profile/{user_id}
https://plus.google.com/s2/photos/profile/{user_id}
https://profiles.google.com/s2/photos/profile/{user_id}
They redirect to the same image url you get from Google API, an ugly link as
lh6.googleusercontent.com/-x1W2-XNKA-A/AAAAAAAAAAI/AAAAAAAAAAA/ooSNulbLz8U/photo.jpg
The simplest is to directly use like image source:
<img src="https://www.google.com/s2/photos/profile/{user_id}">
Otherwise to obtain exactly the same url of a Google API call you can read image headers,
for example in PHP:
$headers = get_headers("https://www.google.com/s2/photos/profile/{user_id}", 1);
echo "<img src=$headers[Location]>";
as described in article Fetch Google Plus Profile Picture using PHP.
$ echo "bar embarassment"|awk '{for(o=1;o<=NF;o++)if($o=="bar")$o="no bar"}1'
no bar embarassment
the first parameters of function JSON.parse
should be a String, and your data is a JavaScript object, so it will convert to a String [object object]
, you should use JSON.stringify
before pass the data
JSON.parse(JSON.stringify(userData))
It sounds like the intermediate certificate is missing. As of April 2006, all SSL certificates issued by VeriSign require the installation of an Intermediate CA Certificate.
It could be that you don't have the entire certificate chain loaded on your server. Some businesses do not allow their computers to download additional certificates, causing a failure to complete an SSL handshake.
Here is some information on intermediate chains:
https://knowledge.verisign.com/support/ssl-certificates-support/index?page=content&id=AR657
https://knowledge.verisign.com/support/ssl-certificates-support/index?page=content&id=AD146
both HTML5 and Google Gears add local storage capabilities, mainly by an embedded SQLite API.
One thing that seems to work for me is this:
@ComponentScan(basePackageClasses = {SomeTypeInYourPackage.class}, resourcePattern = "*.class")
Or in XML:
<context:component-scan base-package="com.example" resource-pattern="*.class"/>
This overrides the default resourcePattern
which is "**/*.class"
.
This would seem like the most type-safe way to ONLY include your base package since that resourcePattern would always be the same and relative to your base package.
I wanted to send email using SMTPLIB, its easier and it does not require local setup. After other answers were not directly helpful, This is what i did.
Open Outlook in a browser; Go to the top right corner, click the gear icon for Settings, Choose 'Options' from the appearing drop-down list. Go to 'Accounts', click 'Pop and Imap', You will see the option: "Let devices and apps use pop",
Choose Yes option and Save changes.
Here is the code there after; Edit where neccesary. Most Important thing is to enable POP and the server code herein;
import smtplib
body = 'Subject: Subject Here .\nDear ContactName, \n\n' + 'Email\'s BODY text' + '\nYour :: Signature/Innitials'
try:
smtpObj = smtplib.SMTP('smtp-mail.outlook.com', 587)
except Exception as e:
print(e)
smtpObj = smtplib.SMTP_SSL('smtp-mail.outlook.com', 465)
#type(smtpObj)
smtpObj.ehlo()
smtpObj.starttls()
smtpObj.login('[email protected]', "password")
smtpObj.sendmail('[email protected]', '[email protected]', body) # Or recipient@outlook
smtpObj.quit()
pass
request.referer
is set by Rack and is set as follows:
def referer
@env['HTTP_REFERER'] || '/'
end
Just do a redirect_to request.referer
and it will always redirect to the true referring page, or the root_path ('/'). This is essential when passing tests that fail in cases of direct-nav to a particular page in which the controller throws a redirect_to :back
I needed to do the same concept of having UITableCells have a "space" between them. Since you can't literally add space between cells you can fake it by manipulating the UITableView's cell height and then adding a UIView to the contentView of your cell. Here is a screen shot of a prototype I did in another test project when I was simulating this:
Here is some code (Note: there are lots of hard coded values for demonstration purposes)
First, I needed to set the heightForRowAtIndexPath
to allow for different heights on the UITableViewCell.
- (CGFloat)tableView:(UITableView *)tableView heightForRowAtIndexPath:(NSIndexPath *)indexPath
{
NSString *text = [self.newsArray objectAtIndex:[indexPath row]];
if ([text isEqual:@"December 2012"])
{
return 25.0;
}
return 80.0;
}
Next, I want to manipulate the look and feel of the UITableViewCells so I do that in the willDisplayCell:(NewsUITableViewCell *)cell forRowAtIndexPath:(NSIndexPath *)indexPath
method.
- (void)tableView:(UITableView *)tableView willDisplayCell:(NewsUITableViewCell *)cell forRowAtIndexPath:(NSIndexPath *)indexPath
{
if (cell.IsMonth)
{
UIImageView *av = [[UIImageView alloc] initWithFrame:CGRectMake(20, 20, 20, 20)];
av.backgroundColor = [UIColor clearColor];
av.opaque = NO;
av.image = [UIImage imageNamed:@"month-bar-bkgd.png"];
UILabel *monthTextLabel = [[UILabel alloc] init];
CGFloat font = 11.0f;
monthTextLabel.font = [BVFont HelveticaNeue:&font];
cell.backgroundView = av;
cell.textLabel.font = [BVFont HelveticaNeue:&font];
cell.textLabel.textColor = [BVFont WebGrey];
}
if (indexPath.row != 0)
{
cell.contentView.backgroundColor = [UIColor clearColor];
UIView *whiteRoundedCornerView = [[UIView alloc] initWithFrame:CGRectMake(10,10,300,70)];
whiteRoundedCornerView.backgroundColor = [UIColor whiteColor];
whiteRoundedCornerView.layer.masksToBounds = NO;
whiteRoundedCornerView.layer.cornerRadius = 3.0;
whiteRoundedCornerView.layer.shadowOffset = CGSizeMake(-1, 1);
whiteRoundedCornerView.layer.shadowOpacity = 0.5;
[cell.contentView addSubview:whiteRoundedCornerView];
[cell.contentView sendSubviewToBack:whiteRoundedCornerView];
}
}
Note that I made my whiteRoundedCornerView height 70.0 and that's what causes the simulated space because the cell's height is actually 80.0 but my contentView is 70.0 which gives it the appearance.
There might be other ways of accomplishing this even better but it's just how I found how to do it. I hope it can help someone else.
From java.sun.com (there's more information on the site) :
The main method is static to give the Java VM interpreter a way to start the class without creating an instance of the control class first. Instances of the control class are created in the main method after the program starts.
My understanding has always been simply that the main method, like any static method, can be called without creating an instance of the associated class, allowing it to run before anything else in the program. If it weren't static, you would have to instantiate an object before calling it-- which creates a 'chicken and egg' problem, since the main method is generally what you use to instantiate objects at the beginning of the program.
It's entirely possible in browser-side javascript.
The easy way:
The readAsDataURL() method might already encode it as base64 for you. You'll probably need to strip out the beginning stuff (up to the first ,
), but that's no biggie. This would take all the fun out though.
The hard way:
If you want to try it the hard way (or it doesn't work), look at readAsArrayBuffer()
. This will give you a Uint8Array and you can use the method specified. This is probably only useful if you want to mess with the data itself, such as manipulating image data or doing other voodoo magic before you upload.
There are two methods:
btoa
or similar
I recently implemented tar in the browser. As part of that process, I made my own direct Uint8Array->base64 implementation. I don't think you'll need that, but it's here if you want to take a look; it's pretty neat.
What I do now:
The code for converting to string from a Uint8Array is pretty simple (where buf is a Uint8Array):
function uint8ToString(buf) {
var i, length, out = '';
for (i = 0, length = buf.length; i < length; i += 1) {
out += String.fromCharCode(buf[i]);
}
return out;
}
From there, just do:
var base64 = btoa(uint8ToString(yourUint8Array));
Base64 will now be a base64-encoded string, and it should upload just peachy. Try this if you want to double check before pushing:
window.open("data:application/octet-stream;base64," + base64);
This will download it as a file.
Other info:
To get the data as a Uint8Array, look at the MDN docs:
Pretty late to the party, but I was struck here and got help from a friend. The thing was not to use PowerMock. This works with the latest version of Mockito.
Mockito comes with this org.mockito.internal.util.reflection.FieldSetter
.
What it basically does is helps you modify private fields using reflection.
This is how you use it:
@Mock
private Person mockedPerson;
private Test underTest;
// ...
@Test
public void testMethod() {
FieldSetter.setField(underTest, underTest.getClass().getDeclaredField("person"), mockedPerson);
// ...
verify(mockedPerson).someMethod();
}
This way you can pass a mock object and then verify it later.
Here is the reference.
This is the right, cross-browser way to do it :
<input type="text" value="Enter Your Name" onfocus="if(this.value == 'Enter Your Name') { this.value = ''; } " onblur="if(this.value == '') { this.value = 'Enter Your Name'; } " />
It turns out that if-else if generally faster than switch
Most of the time you can have Android Studio automatically update the Gradle plugin.
If your Gradle plugin version is behind, Instant Run will mostly likely not work. Therefore if you go to the Instant Run settings (Preferences > Build, Execution, Deployment > Instant Run), you'll see an Update project button at the top right (image below). Clicking this will update both the Gradle wrapper and build tools.
Reading answers here, it seems that the error "RenderBox was not laid out" is caused when somehow the ListView size is limitless and this can happen in different scenarios.
Just aiming to help who may have the same case as mine. In my case, I was getting this error because my ListView was inside a a column whose parent was a SingleChildScrollView. I remove this parent and it worked.
Here is my working code:
List _todoList = ["AAA", "BBB"];
...
body: Column(
children: [
Container(...),
Expanded(
child: ListView.builder(
itemCount: _todoList.length,
itemBuilder: (context, index) {
return ListTile(title: Text(_todoList[index]));
}))
],
));
Here how it was when I was getting the "not laid out" error:
List _todoList = ["AAA", "BBB"];
...
body: SingleChildScrollView(child: Column(
children: [
Container(...),
Expanded(
child: ListView.builder(
itemCount: _todoList.length,
itemBuilder: (context, index) {
return ListTile(title: Text(_todoList[index]));
}))
],
)));
I hope this may be useful for someone.
As an aside, it is always a good practice (and possibly a solution for this type of issue) to delete a large number of rows by using batches:
WHILE EXISTS (SELECT 1
FROM YourTable
WHERE <yourCondition>)
DELETE TOP(10000) FROM YourTable
WHERE <yourCondition>
A sample of code.
Firstly :
$matchesLcl=[];
array gets filled here using desired count / loop of conditions, incremently :
$matchesLcl['pos']= $request->pos;
$matchesLcl['operation']= $operation;
//+......+
$matchesLcl['somethingN']= $valueN;
and further with eloquents like this shrink expression :
if (!empty($matchesLcl))
$setLcl= MyModel::select(['a', 'b', 'c', 'd'])
->where($matchesLcl)
->whereBetween('updated_at', array($newStartDate . ' 00:00:00', $newEndDate . ' 23:59:59'));
else
$setLcl= MyModel::select(['a', 'b', 'c', 'd'])
->whereBetween('updated_at', array($newStartDate . ' 00:00:00', $newEndDate . ' 23:59:59'));
This is basically the same answer provided by Evert, but extended to show-off
some cool options of fill_between
from matplotlib import pyplot as pl
import numpy as np
pl.clf()
pl.hold(1)
x = np.linspace(0, 30, 100)
y = np.sin(x) * 0.5
pl.plot(x, y, '-k')
x = np.linspace(0, 30, 30)
y = np.sin(x/6*np.pi)
error = np.random.normal(0.1, 0.02, size=y.shape) +.1
y += np.random.normal(0, 0.1, size=y.shape)
pl.plot(x, y, 'k', color='#CC4F1B')
pl.fill_between(x, y-error, y+error,
alpha=0.5, edgecolor='#CC4F1B', facecolor='#FF9848')
y = np.cos(x/6*np.pi)
error = np.random.rand(len(y)) * 0.5
y += np.random.normal(0, 0.1, size=y.shape)
pl.plot(x, y, 'k', color='#1B2ACC')
pl.fill_between(x, y-error, y+error,
alpha=0.2, edgecolor='#1B2ACC', facecolor='#089FFF',
linewidth=4, linestyle='dashdot', antialiased=True)
y = np.cos(x/6*np.pi) + np.sin(x/3*np.pi)
error = np.random.rand(len(y)) * 0.5
y += np.random.normal(0, 0.1, size=y.shape)
pl.plot(x, y, 'k', color='#3F7F4C')
pl.fill_between(x, y-error, y+error,
alpha=1, edgecolor='#3F7F4C', facecolor='#7EFF99',
linewidth=0)
pl.show()
grouped=df.groupby(['Team','Year'])['W'].count().reset_index()
team_wins_df=pd.DataFrame(grouped)
team_wins_df=team_wins_df.rename({'W':'Wins'},axis=1)
team_wins_df['Wins']=team_wins_df['Wins'].astype(np.int32)
team_wins_df.reset_index()
print(team_wins_df)
Because performance was really important for me, I benchmarked all the functions above.
NOTE: Data from @Simon O'Hanlon's post. Only with size 15000 instead of 10.
library(tidyverse)
library(microbenchmark)
set.seed(123)
df <- data.frame(id = 1:15000,
nas = rep(NA, 15000),
vals = sample(c(1:3, NA), 15000,
repl = TRUE))
df
MadSconeF1 <- function(x) x[, colSums(is.na(x)) != nrow(x)]
MadSconeF2 <- function(x) x[colSums(!is.na(x)) > 0]
BradCannell <- function(x) x %>% select_if(~sum(!is.na(.)) > 0)
SimonOHanlon <- function(x) x[ , !apply(x, 2 ,function(y) all(is.na(y)))]
jsta <- function(x) janitor::remove_empty(x)
SiboJiang <- function(x) x %>% dplyr::select_if(~!all(is.na(.)))
akrun <- function(x) Filter(function(y) !all(is.na(y)), x)
mbm <- microbenchmark(
"MadSconeF1" = {MadSconeF1(df)},
"MadSconeF2" = {MadSconeF2(df)},
"BradCannell" = {BradCannell(df)},
"SimonOHanlon" = {SimonOHanlon(df)},
"SiboJiang" = {SiboJiang(df)},
"jsta" = {jsta(df)},
"akrun" = {akrun(df)},
times = 1000)
mbm
Results:
Unit: microseconds
expr min lq mean median uq max neval cld
MadSconeF1 154.5 178.35 257.9396 196.05 219.25 5001.0 1000 a
MadSconeF2 180.4 209.75 281.2541 226.40 251.05 6322.1 1000 a
BradCannell 2579.4 2884.90 3330.3700 3059.45 3379.30 33667.3 1000 d
SimonOHanlon 511.0 565.00 943.3089 586.45 623.65 210338.4 1000 b
SiboJiang 2558.1 2853.05 3377.6702 3010.30 3310.00 89718.0 1000 d
jsta 1544.8 1652.45 2031.5065 1706.05 1872.65 11594.9 1000 c
akrun 93.8 111.60 139.9482 121.90 135.45 3851.2 1000 a
autoplot(mbm)
mbm %>%
tbl_df() %>%
ggplot(aes(sample = time)) +
stat_qq() +
stat_qq_line() +
facet_wrap(~expr, scales = "free")
In Bootstrap 4 the correct answer is to use the text-xs-right
class.
This works because xs
denotes the smallest viewport size in BS. If you wanted to, you could apply the alignment only when the viewport is medium or larger by using text-md-right
.
In the latest alpha, text-xs-right
has been simplified to text-right
.
<div class="row">
<div class="col-md-6">Total cost</div>
<div class="col-md-6 text-right">$42</div>
</div>
Null comparison is MUCH faster than throwing and catching exception. Exceptions have significant overhead - stack trace must be assembled etc.
Exceptions should represent an unexpected state, which often doesn't represent the situation (which is when as
works better).
I had to stop the apache server first.
(f.e. sudo systemctl stop httpd.service
/ sudo systemctl disable httpd.service
).
That solved my problem besides editing the 'settings.py
' file
to ALLOWED_HOSTS = ['se.rv.er.ip', 'www.example.com']
I believe the answer above is incorrect, the proper way to initialize with multiple values would be this...
int[] otherList ={1,2,3,4,5};
so the full answer with the proper initialization would look like this
int[] otherList ={1,2,3,4,5};
arList.addAll(Arrays.asList(otherList));
If you don't mind multiple inheritance (it is not that bad, after all), you may write simple class with private copy constructor and assignment operator and additionally subclass it:
class NonAssignable {
private:
NonAssignable(NonAssignable const&);
NonAssignable& operator=(NonAssignable const&);
public:
NonAssignable() {}
};
class SymbolIndexer: public Indexer, public NonAssignable {
};
For GCC this gives the following error message:
test.h: In copy constructor ‘SymbolIndexer::SymbolIndexer(const SymbolIndexer&)’:
test.h: error: ‘NonAssignable::NonAssignable(const NonAssignable&)’ is private
I'm not very sure for this to work in every compiler, though. There is a related question, but with no answer yet.
UPD:
In C++11 you may also write NonAssignable
class as follows:
class NonAssignable {
public:
NonAssignable(NonAssignable const&) = delete;
NonAssignable& operator=(NonAssignable const&) = delete;
NonAssignable() {}
};
The delete
keyword prevents members from being default-constructed, so they cannot be used further in a derived class's default-constructed members. Trying to assign gives the following error in GCC:
test.cpp: error: use of deleted function
‘SymbolIndexer& SymbolIndexer::operator=(const SymbolIndexer&)’
test.cpp: note: ‘SymbolIndexer& SymbolIndexer::operator=(const SymbolIndexer&)’
is implicitly deleted because the default definition would
be ill-formed:
UPD:
Boost already has a class just for the same purpose, I guess it's even implemented in similar way. The class is called boost::noncopyable
and is meant to be used as in the following:
#include <boost/core/noncopyable.hpp>
class SymbolIndexer: public Indexer, private boost::noncopyable {
};
I'd recommend sticking to the Boost's solution if your project policy allows it. See also another boost::noncopyable
-related question for more information.
Use this line of code in your css
border: 1px solid #000 !important;
or if you want border only in left and right side of container then use:
border-right: 1px solid #000 !important;
border-left: 1px solid #000 !important;
modifying the proxy value under
[HKEY_USERS\<your SID>\Software\Microsoft\Windows\CurrentVersion\Internet Settings]
doesnt need to restart ie
select * into new_items from productDB.dbo.items
That pretty much is it. THis is the most efficient way to do it.
DFS from the start node s, keep track of the DFS path during traversal, and record the path if you find an edge from node v in the path to s. (v,s) is a back-edge in the DFS tree and thus indicates a cycle containing s.
For people using a mac. When you're using different host names say test.local and test2.local. Try changing test.local to test.dev. I found out that Mac OS X lion controls the .local tld. So when you change it to something else it's faster.
And of course use above suggestions like turning off the ipv6 reference in your hosts file:
#::1 localhost
and setting this in the hosts file: 127.0.0.1 localhost
so it points to ipv4.
Upcasting and Downcasting:
Upcasting: Casting from Derived-Class to Base Class Downcasting: Casting from Base Class to Derived Class
Let's understand the same as an example:
Consider two classes Shape as My parent class and Circle as a Derived class, defined as follows:
class Shape
{
public int Width { get; set; }
public int Height { get; set; }
}
class Circle : Shape
{
public int Radius { get; set; }
public bool FillColor { get; set; }
}
Upcasting:
Shape s = new Shape();
Circle c= s;
Both c and s are referencing to the same memory location, but both of them have different views i.e using "c" reference you can access all the properties of the base class and derived class as well but using "s" reference you can access properties of the only parent class.
A practical example of upcasting is Stream class which is baseclass of all types of stream reader of .net framework:
StreamReader reader = new StreamReader(new FileStreamReader());
here, FileStreamReader() is upcasted to streadm reder.
Downcasting:
Shape s = new Circle(); here as explained above, view of s is the only parent, in order to make it for both parent and a child we need to downcast it
var c = (Circle) s;
The practical example of Downcasting is button class of WPF.
I don't think you can configure how much memory MongoDB uses, but that's OK (read below).
To quote from the official source:
Virtual memory size and resident size will appear to be very large for the mongod process. This is benign: virtual memory space will be just larger than the size of the datafiles open and mapped; resident size will vary depending on the amount of memory not used by other processes on the machine.
In other words, Mongo will let other programs use memory if they ask for it.
INSERT INTO wp_bp_activity
(
user_id,
component,
`type`,
`action`,
content,
primary_link,
item_id,
secondary_item_id,
date_recorded,
hide_sitewide,
mptt_left,
mptt_right
)
VALUES(
1,'activity','activity_update','<a title="admin" href="http://brandnewmusicreleases.com/social-network/members/admin/">admin</a> posted an update','<a title="242925_1" href="http://brandnewmusicreleases.com/social-network/wp-content/uploads/242925_1.jpg" class="buddyboss-pics-picture-link">242925_1</a>','http://brandnewmusicreleases.com/social-network/members/admin/',' ',' ','2012-06-22 12:39:07',0,0,0
)
The solution was, after making a backup of the src/test folder, removing it from the filesystem, then creating it again.
That's after I did the "Remove from build path" hint and it screwed the folders when opening the project in STS 4.
IntelliJ just inserts them automagically; no shortcut required. If the class name is ambiguous, it'll show me the list of possibilities to choose from. It reads my mind....
By the answer of rudivonstaden
txtBlock.Text = await response.Content.ReadAsStringAsync();
but if you don't want to make the method async you can use
txtBlock.Text = response.Content.ReadAsStringAsync();
txtBlock.Text.Wait();
Wait() it's important, bec?use we are doing async operations and we must wait for the task to complete before going ahead.
May be it's not the same for Sql Srver but for people using oracle and eclipslink it's working for me
ex: a procedure that have one IN param (type CHAR) and two OUT params (NUMBER & VARCHAR)
in the persistence.xml declare the persistence-unit :
<persistence-unit name="presistanceNameOfProc" transaction-type="RESOURCE_LOCAL">
<provider>org.eclipse.persistence.jpa.PersistenceProvider</provider>
<jta-data-source>jdbc/DataSourceName</jta-data-source>
<mapping-file>META-INF/eclipselink-orm.xml</mapping-file>
<properties>
<property name="eclipselink.logging.level" value="FINEST"/>
<property name="eclipselink.logging.logger" value="DefaultLogger"/>
<property name="eclipselink.weaving" value="static"/>
<property name="eclipselink.ddl.table-creation-suffix" value="JPA_STORED_PROC" />
</properties>
</persistence-unit>
and declare the structure of the proc in the eclipselink-orm.xml
<?xml version="1.0" encoding="UTF-8"?><entity-mappings version="2.0"
xmlns="http://java.sun.com/xml/ns/persistence/orm" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://java.sun.com/xml/ns/persistence/orm orm_2_0.xsd">
<named-stored-procedure-query name="PERSIST_PROC_NAME" procedure-name="name_of_proc" returns-result-set="false">
<parameter direction="IN" name="in_param_char" query-parameter="in_param_char" type="Character"/>
<parameter direction="OUT" name="out_param_int" query-parameter="out_param_int" type="Integer"/>
<parameter direction="OUT" name="out_param_varchar" query-parameter="out_param_varchar" type="String"/>
</named-stored-procedure-query>
in the code you just have to call your proc like this :
try {
final Query query = this.entityManager
.createNamedQuery("PERSIST_PROC_NAME");
query.setParameter("in_param_char", 'V');
resultQuery = (Object[]) query.getSingleResult();
} catch (final Exception ex) {
LOGGER.log(ex);
throw new TechnicalException(ex);
}
to get the two output params :
Integer myInt = (Integer) resultQuery[0];
String myStr = (String) resultQuery[1];
jars use zip compression so you can use any unzip utility.
Example:
$ unzip myJar.jar -d ./directoryToExtractTo
You should only throw exceptions if you find yourself in a situation that indicates a programming error, and want to stop the application from running. Therefore, the best way to throw exceptions is using the NSAssert and NSParameterAssert macros, and making sure that NS_BLOCK_ASSERTIONS is not defined.
I have done good research on the save() vs. persist() including running it on my local machine several times. All the previous explanations are confusing and incorrect. I compare save() and persist() methods below after a thorough research.
Save()
Serializable
;session.save()
for a detached object will create a new row in the table.Persist()
void
;session.persist()
for a detached object will throw a PersistentObjectException
, as it is not allowed.All these are tried/tested on Hibernate v4.0.1
.
Kindly check Column ApplicationId datatype in Table aspnet_Users , ApplicationId column datatype should be uniqueidentifier .
*Your parameter order is passed wrongly , Parameter @id should be passed as first argument, but in your script it is placed in second argument..*
So error is raised..
Please refere sample script:
DECLARE @id uniqueidentifier
SET @id = NEWID()
Create Table #temp1(AppId uniqueidentifier)
insert into #temp1 values(@id)
Select * from #temp1
Drop Table #temp1
Setting android:windowActionBar="false"
truly disables the ActionBar but then, as you say, getActionBar();
returns null.
This is solved by:
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
getWindow().requestFeature(Window.FEATURE_ACTION_BAR);
getActionBar().hide();
setContentView(R.layout.splash); // be sure you call this AFTER requestFeature
This creates the ActionBar and immediately hides it before it had the chance to be displayed.
But now there is another problem. After putting windowActionBar="false"
in the theme, the Activity draws its normal Window Title instead of an ActionBar.
If we try to avoid this by using some of the *.NoTitleBar
stock themes or we try to put <item name="android:windowNoTitle">true</item>
in our own theme, it won't work.
The reason is that the ActionBar depends on the Window Title to display itself - that is the ActionBar is a transformed Window Title.
So the trick which can help us out is to add one more thing to our Activity theme xml:
<item name="android:windowActionBar">false</item>
<item name="android:windowTitleSize">0dp</item>
This will make the Window Title with zero height, thus practically invisible .
In your case, after you are done with displaying the splash screen you can simply call
setContentView(R.layout.main);
getActionBar().show();
and you are done. The Activity will start with no ActionBar flickering, nor Window Title showing.
ADDON: If you show and hide the ActionBar multiple times maybe you have noticed that the first showing is not animated. From then on showing and hiding are animated. If you want to have animation on the first showing too you can use this:
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
requestWindowFeature(Window.FEATURE_ACTION_BAR);
// delaying the hiding of the ActionBar
Handler h = new Handler();
h.post(new Runnable() {
@Override
public void run() {
getActionBar().hide();
}
});
The same thing can be achieved with:
protected void onPostResume() {
super.onPostResume();
getActionBar().hide();
but it may need some extra logic to check if this is the first showing of the Activity.
The idea is to delay a little the hiding of the ActionBar. In a way we let the ActionBar be shown, but then hide it immediately. Thus we go beyond the first non-animated showing and next showing will be considered second, thus it will be animated.
As you may have guessed there is a chance that the ActionBar could be seen before it has been hidden by the delayed operation. This is actually the case. Most of the time nothing is seen but yet, once in a while, you can see the ActionBar flicker for a split second.
In any case this is not a pretty solution, so I welcome any suggestions.
Addition for v7 support actionbar user, the code will be:
getWindow().requestFeature(Window.FEATURE_ACTION_BAR);
getSupportActionBar().hide();
import jquery within <script> tag in your vue file.
I think this is the easiest way.
For example,
<script>
import $ from "jquery";
export default {
name: 'welcome',
mounted: function() {
window.setTimeout(function() {
$('.logo').css('opacity', 0);
}, 1000);
}
}
</script>
It is important to highlight that the Property (MaximumErrorCount) that needs to be changed must be set as more than 0 (which is the default) in the Package level and not in the specific control that is showing the error (I tried this and it does not work!)
Be sure that in the Properties Window, the Pull down menu is set to "Package", then look for the property MaximumErrorCount to change it.
VBA uses a garbage collector which is implemented by reference counting.
There can be multiple references to a given object (for example, Dim aw = ActiveWorkbook
creates a new reference to Active Workbook), so the garbage collector only cleans up an object when it is clear that there are no other references. Setting to Nothing is an explicit way of decrementing the reference count. The count is implicitly decremented when you exit scope.
Strictly speaking, in modern Excel versions (2010+) setting to Nothing isn't necessary, but there were issues with older versions of Excel (for which the workaround was to explicitly set)
Setting the id attribute when appending the svg element can also let d3 select so remove() later on this element by id :
var svg = d3.select("theParentElement").append("svg")
.attr("id","the_SVG_ID")
.attr("width",...
...
d3.select("#the_SVG_ID").remove();
This works too
var i = 1;_x000D_
$('button').click(function() {_x000D_
$('#red').clone().appendTo('#test').prop('id', 'red' + i);_x000D_
i++; _x000D_
});
_x000D_
<script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/2.2.4/jquery.min.js"></script>_x000D_
<div id="test">_x000D_
<button>Clone</button>_x000D_
<div class="red" id="red">_x000D_
</div>_x000D_
</div>_x000D_
_x000D_
<style>_x000D_
.red {_x000D_
width:20px;_x000D_
height:20px;_x000D_
background-color: red;_x000D_
margin: 10px;_x000D_
}_x000D_
</style>
_x000D_
The normal usage of static is to access the function directly with out any object creation. Same as in java main we could not create any object for that class to invoke the main method. It will execute automatically. If we want to execute manually we can call by using main() inside the class and ClassName.main from outside the class.
You can do something like this:
jQuery.fn.existsWithValue = function() {
return this.length && this.val().length;
}
if ($(selector).existsWithValue()) {
// Do something
}
You could also create a trigger that will calculate the sum before each insert
delimiter |
CREATE TRIGGER calCumluativeSum BEFORE INSERT ON someTable
FOR EACH ROW BEGIN
SET cumulative_sum = (
SELECT SUM(x.count)
FROM someTable x
WHERE x.id <= NEW.id
)
set NEW.cumulative_sum = cumulative_sum;
END;
|
I have not tested this
Have a look at this fiddle
Original: http://jsfiddle.net/brendanowen/uXbn6/8/
Updated: http://jsfiddle.net/animaxf/uXbn6/4779/
This should give you a good idea of how to display a tree like structure
using angular. It is kind of using recursion in html!
You can use cstdlib
Although- http://www.cplusplus.com/articles/j3wTURfi/
#include <cstdlib>
const int dir= system("mkdir -p foo");
if (dir< 0)
{
return;
}
you can also check if the directory exists already by using
#include <dirent.h>
Remove Quote. and use innerText instead of text
function toggleText(button_id)
{ //-----\/ 'button_id' - > button_id
if (document.getElementById(button_id).innerText == "Lock")
{
document.getElementById(button_id).innerText = "Unlock";
}
else
{
document.getElementById(button_id).innerText = "Lock";
}
}
If you want to create a new input field with for example file
type:
// Create a new Input with type file and id='file-input'
var newFileInput = document.createElement('input');
// The new input file will have type 'file'
newFileInput.type = "file";
// The new input file will have class="w-95 mb-1" (width - 95%, margin-bottom: .25rem)
newFileInput.className = "w-95 mb-1"
The output will be: <input type="file" class="w-95 mb-1">
If you want to create a nested tag using JavaScript, the simplest way is with innerHtml
:
var tag = document.createElement("li");
tag.innerHTML = '<span class="toggle">Jan</span>';
The output will be:
<li>
<span class="toggle">Jan</span>
</li>
Added webkit specific values missing from above
white-space: -moz-pre-wrap; /* Firefox */
white-space: -o-pre-wrap; /* Opera */
white-space: pre-wrap; /* Chrome */
word-wrap: break-word; /* IE */
A real problem often exists because any variables set inside will not be exported when that batch file finishes. So its not possible to export, which caused us issues. As a result, I just set the registry to ALWAYS used delayed expansion (I don't know why it's not the default, could be speed or legacy compatibility issue.)
mysql> CREATE TABLE tin3(id int PRIMARY KEY,val TINYINT(10) ZEROFILL);
Query OK, 0 rows affected (0.04 sec)
mysql> INSERT INTO tin3 VALUES(1,12),(2,7),(4,101);
Query OK, 3 rows affected (0.02 sec)
Records: 3 Duplicates: 0 Warnings: 0
mysql> SELECT * FROM tin3;
+----+------------+
| id | val |
+----+------------+
| 1 | 0000000012 |
| 2 | 0000000007 |
| 4 | 0000000101 |
+----+------------+
3 rows in set (0.00 sec)
mysql>
mysql> SELECT LENGTH(val) FROM tin3 WHERE id=2;
+-------------+
| LENGTH(val) |
+-------------+
| 10 |
+-------------+
1 row in set (0.01 sec)
mysql> SELECT val+1 FROM tin3 WHERE id=2;
+-------+
| val+1 |
+-------+
| 8 |
+-------+
1 row in set (0.00 sec)
Using parseInt() is a bad idea mainly because it never fails. Also because some results can be unexpected, like in the case of INFINITY.
Below is the function for handling unexpected behaviour.
function cleanInt(x) {
x = Number(x);
return x >= 0 ? Math.floor(x) : Math.ceil(x);
}
See results of below test cases.
console.log("CleanInt: ", cleanInt('xyz'), " ParseInt: ", parseInt('xyz'));
console.log("CleanInt: ", cleanInt('123abc'), " ParseInt: ", parseInt('123abc'));
console.log("CleanInt: ", cleanInt('234'), " ParseInt: ", parseInt('234'));
console.log("CleanInt: ", cleanInt('-679'), " ParseInt: ", parseInt('-679'));
console.log("CleanInt: ", cleanInt('897.0998'), " ParseInt: ", parseInt('897.0998'));
console.log("CleanInt: ", cleanInt('Infinity'), " ParseInt: ", parseInt('Infinity'));
result:
CleanInt: NaN ParseInt: NaN
CleanInt: NaN ParseInt: 123
CleanInt: 234 ParseInt: 234
CleanInt: -679 ParseInt: -679
CleanInt: 897 ParseInt: 897
CleanInt: Infinity ParseInt: NaN
None of the 7 prior answers mentioned that console.dir
supports extra arguments: depth
, showHidden
, and whether to use colors
.
Of particular interest is depth
, which (in theory) allows travering objects into more than the default 2 levels that console.log
supports.
I wrote "in theory" because in practice when I had a Mongoose object and ran console.log(mongoose)
and console.dir(mongoose, { depth: null })
, the output was the same. What actually recursed deeply into the mongoose
object was using util.inspect
:
import * as util from 'util';
console.log(util.inspect(myObject, {showHidden: false, depth: null}));
I solved this simply:
<div ng-repeat="Object in List | filter: (FilterObj.FilterProperty1 ? {'ObjectProperty1': FilterObj.FilterProperty1} : '') | filter:(FilterObj.FilterProperty2 ? {'ObjectProperty2': FilterObj.FilterProperty2} : '')">
http://docs.python.org/reference/compound_stmts.html
Compound statements consist of one or more ‘clauses.’ A clause consists of a header and a ‘suite.’ The clause headers of a particular compound statement are all at the same indentation level. Each clause header begins with a uniquely identifying keyword and ends with a colon. A suite is a group of statements controlled by a clause. A suite can be one or more semicolon-separated simple statements on the same line as the header, following the header’s colon, or it can be one or more indented statements on subsequent lines. Only the latter form of suite can contain nested compound statements; the following is illegal, mostly because it wouldn’t be clear to which if clause a following else clause would belong:
if test1: if test2: print x
Also note that the semicolon binds tighter than the colon in this context, so that in the following example, either all or none of the print statements are executed:
if x < y < z: print x; print y; print z
Summarizing:
compound_stmt ::= if_stmt
| while_stmt
| for_stmt
| try_stmt
| with_stmt
| funcdef
| classdef
| decorated
suite ::= stmt_list NEWLINE | NEWLINE INDENT statement+ DEDENT
statement ::= stmt_list NEWLINE | compound_stmt
stmt_list ::= simple_stmt (";" simple_stmt)* [";"]
This just happened to us without any whitespace issues, and changing https:
to http:
fixed it...
server {
server_name www.mysite2.name;
return 301 $scheme://mysite2.name$request_uri;
}
server {
#This config is based on https://github.com/daylerees/laravel-website-configs/blob/6db24701073dbe34d2d58fea3a3c6b3c0cd5685b/nginx.conf
server_name mysite2.name;
# The location of our project's public directory.
root /usr/share/nginx/mysite2/live/public/;
# Point index to the Laravel front controller.
index index.php;
location / {
# URLs to attempt, including pretty ones.
try_files $uri $uri/ /index.php?$query_string;
}
# Remove trailing slash to please routing system.
if (!-d $request_filename) {
rewrite ^/(.+)/$ /$1 permanent;
}
# pass the PHP scripts to FastCGI server listening on 127.0.0.1:9000
location ~ \.php$ {
fastcgi_split_path_info ^(.+\.php)(/.+)$;
# # NOTE: You should have "cgi.fix_pathinfo = 0;" in php.ini
# # With php5-fpm:
fastcgi_pass unix:/var/run/php5-fpm.sock;
fastcgi_index index.php;
include fastcgi_params;
fastcgi_param SCRIPT_FILENAME $document_root$fastcgi_script_name;
}
}
Then the only output in the browser was a Laravel error: “Whoops, looks like something went wrong.”
Do NOT run chmod -R 777 app/storage
(note). Making something world-writable is bad security.
chmod -R 755 app/storage
works and is more secure.
According to the IEEE standards, float is a 32 bit representation of a real number while double is a 64 bit representation.
In Java programs we normally mostly see the use of double data type. It's just to avoid overflows as the range of numbers that can be accommodated using the double data type is more that the range when float is used.
Also when high precision is required, the use of double is encouraged. Few library methods that were implemented a long time ago still requires the use of float data type as a must (that is only because it was implemented using float, nothing else!).
But if you are certain that your program requires small numbers and an overflow won't occur with your use of float, then the use of float will largely improve your space complexity as floats require half the memory as required by double.
You should really use the following instead (works in all newer browsers):
window.addEventListener('DOMContentLoaded', init, false);
Just a warning:
According to this issue, --user
is currently not valid inside a virtual env's pip
, since a user location doesn't really make sense for a virtual environment.
So do not use pip install --user some_pkg
inside a virtual environment, otherwise, virtual environment's pip
will be confused. See this answer for more details.
Using a ternary operator inside the ngStyle
binding will function as an if/else condition.
<div [ngStyle]="{'background-image': 'url(' + value ? image : otherImage + ')'}"></div>
Let me help you understand it with an example of "codaddict's algorithm"
'Dictionary in C#' is 'Hashmap in Java' in parallel universe.
Some implementations are different. See the example below to understand better.
Declaring Java HashMap:
Map<Integer, Integer> pairs = new HashMap<Integer, Integer>();
Declaring C# Dictionary:
Dictionary<int, int> Pairs = new Dictionary<int, int>();
Getting a value from a location:
pairs.get(input[i]); // in Java
Pairs[input[i]]; // in C#
Setting a value at location:
pairs.put(k - input[i], input[i]); // in Java
Pairs[k - input[i]] = input[i]; // in C#
An Overall Example can be observed from below Codaddict's algorithm.
codaddict's algorithm in Java:
import java.util.HashMap;
public class ArrayPairSum {
public static void printSumPairs(int[] input, int k)
{
Map<Integer, Integer> pairs = new HashMap<Integer, Integer>();
for (int i = 0; i < input.length; i++)
{
if (pairs.containsKey(input[i]))
System.out.println(input[i] + ", " + pairs.get(input[i]));
else
pairs.put(k - input[i], input[i]);
}
}
public static void main(String[] args)
{
int[] a = { 2, 45, 7, 3, 5, 1, 8, 9 };
printSumPairs(a, 10);
}
}
Codaddict's algorithm in C#
using System;
using System.Collections.Generic;
class Program
{
static void checkPairs(int[] input, int k)
{
Dictionary<int, int> Pairs = new Dictionary<int, int>();
for (int i = 0; i < input.Length; i++)
{
if (Pairs.ContainsKey(input[i]))
{
Console.WriteLine(input[i] + ", " + Pairs[input[i]]);
}
else
{
Pairs[k - input[i]] = input[i];
}
}
}
static void Main(string[] args)
{
int[] a = { 2, 45, 7, 3, 5, 1, 8, 9 };
//method : codaddict's algorithm : O(n)
checkPairs(a, 10);
Console.Read();
}
}
Yes, that's the correct way to do it. If you're looking to give yourself a "Clean" (or, as I'd prefer to call it, "Empty" function), you can create an extension method.
public static void Empty(this System.IO.DirectoryInfo directory)
{
foreach(System.IO.FileInfo file in directory.GetFiles()) file.Delete();
foreach(System.IO.DirectoryInfo subDirectory in directory.GetDirectories()) subDirectory.Delete(true);
}
This will then allow you to do something like..
System.IO.DirectoryInfo directory = new System.IO.DirectoryInfo(@"C:\...");
directory.Empty();
JavaScript is a client-side language and your MySQL database is going to be running on a server.
So you have to rename your file to index.php
for example (.php is important) so you can use php code for that. It is not very difficult, but not directly possible with html.
(Somehow you can tell your server to let the html files behave like php files, but this is not the best solution.)
So after you renamed your file, go to the very top, before <html>
or <!DOCTYPE html>
and type:
<?php
if($_SERVER['REQUEST_METHOD'] == 'POST') {
/*Creating variables*/
$name = $_POST["name"];
$address = $_POST["address"];
$age = $_POST["age"];
$dbhost = "localhost"; /*most of the time it's localhost*/
$username = "yourusername";
$password = "yourpassword";
$dbname = "mydatabase";
$mysql = mysqli_connect($dbhost, $username, $password, $dbname); //It connects
$query = "INSERT INTO yourtable (name,address,age) VALUES $name, $address, $age";
mysqli_query($mysql, $query);
}
?>
<!DOCTYPE html>
<html>
<head>.......
....
<form method="post">
<input name="name" type="text"/>
<input name="address" type="text"/>
<input name="age" type="text"/>
</form>
....
Rewriting a file in place is often done by saving the old copy with a modified name. Unix folks add a ~
to mark the old one. Windows folks do all kinds of things -- add .bak or .old -- or rename the file entirely or put the ~ on the front of the name.
import shutil
shutil.move( afile, afile+"~" )
destination= open( aFile, "w" )
source= open( aFile+"~", "r" )
for line in source:
destination.write( line )
if <some condition>:
destination.write( >some additional line> + "\n" )
source.close()
destination.close()
Instead of shutil
, you can use the following.
import os
os.rename( aFile, aFile+"~" )
I use the lattice
package for almost everything I plot in R and it has a corresponing plot to persp
called wireframe
. Let data
be the way Sven defined it.
wireframe(z ~ x * y, data=data)
Or how about this (modification of fig 6.3 in Deepanyan Sarkar's book):
p <- wireframe(z ~ x * y, data=data)
npanel <- c(4, 2)
rotx <- c(-50, -80)
rotz <- seq(30, 300, length = npanel[1]+1)
update(p[rep(1, prod(npanel))], layout = npanel,
panel = function(..., screen) {
panel.wireframe(..., screen = list(z = rotz[current.column()],
x = rotx[current.row()]))
})
Since this post continues to draw attention I want to add the OpenGL way to make 3-d plots too (as suggested by @tucson below). First we need to reformat the dataset from xyz-tripplets to axis vectors x
and y
and a matrix z
.
x <- 1:5/10
y <- 1:5
z <- x %o% y
z <- z + .2*z*runif(25) - .1*z
library(rgl)
persp3d(x, y, z, col="skyblue")
This image can be freely rotated and scaled using the mouse, or modified with additional commands, and when you are happy with it you save it using rgl.snapshot
.
rgl.snapshot("myplot.png")
I found the problem. Somehow the "Show Disassembly when debugging" was enabled in my XCode which creates that problem. When I disabled it, all my debugger stopped in my source code.
You can find it under: Product->Debug Workflow->Show Disassembly
when debugging.
Although this question has an accepted answer but I think this is a much cleaner way to achieve the desired output
<select required>
<option value="">Select</option>
<option>English</option>
<option>Spanish</option>
</select>
The required attribute in makes it mandatory to select an option from the list.
value="" inside the option tag combined with the required attribute in select tag makes selection of 'Select' option not permissible, thus achieving the required output
If possible I would suggest creating the Path
directly from the path elements:
Path path = Paths.get("C:", "dir1", "dir2", "dir3");
// if needed
String textPath = path.toString(); // "C:\\dir1\\dir2\\dir3"
When in doubt, be explicit about the data type conversion using CAST/CONVERT:
UPDATE TABLE
SET EndDate = CAST('2009-05-25' AS DATETIME)
WHERE Id = 1
This doesn't work. only one value is ever pre-selected even though both options are available in the list only the first is shown
('#searchproject').select2('val', ['New Co-location','Expansion']);
The time
module can import all sorts of time stuff, inculduing sleep and other types of stuff including - the current time type
import time
time.strftime("%T", time.localtime())
The output should look like this
05:46:33
11:22:56
13:44:55
22:33:44
00:00:00
Okay I have got it working, hope this information is useful.
First of all I now realize that not only do self-extracting zip start extracting with doubleclick, but they require no extraction application to be installed on the users computer because the extractor code is in the archive itself. This means that you will get a different user experience depending on what you application you use to create the sfx
I went with WinRar as follows, this does not require you to create an sfx file, everything can be created via the gui:
The resultant exe unzips to a temporary folder and then starts the installer
the sort method contains an optional argument to pass a custom compare function.
Assuming you wanted an array of arrays:
var arr = [[3, "Mike", 20],[5, "Alex", 15]];
function compareName(a, b)
{
if (a[1] < b[1]) return -1;
if (a[1] > b[1]) return 1;
return 0;
}
arr.sort(compareName);
Otherwise if you wanted an array of objects, you could do:
function compareName(a, b)
{
if (a.name < b.name) return -1;
if (a.name > b.name) return 1;
return 0;
}
Bootstrap 2 , 3 Check is any modal open in page :
if($('.modal.in').length)
compatible version Bootstrap 2 , 3 , 4+
if($('.modal.in, .modal.show').length)
Only Bootstrap 4+
if($('.modal.show').length)
You can use
CameraUpdate center = CameraUpdateFactory.newLatLng(new LatLng(location.getLatitude(), location.getLongitude()));
CameraUpdate zoom = CameraUpdateFactory.zoomTo(12);
In stall PuTTY in our system and set the environment variable PATH Pointing to putty path. open the command prompt and move to putty folder. Using PSCP command
your question makes no sense. you are asking how to turn a hash into an array. You cant.
you can make a list of values, or make a list of keys, and neither of these have anything to do with jquery, this is pure javascript
Here is unicode-safe ucwords() function, which additionally respects double-lastnames like Russian ????-?????? and some noble names like Honoré de Balzac, d'Artagnan, Vincent van Gogh, Otto von Bismarck, Sulayman ibn Dawud, etc:
String.prototype.ucwords = function() {
return this.toLowerCase()
.replace(/(^|\s|\-)[^\s$]/g, function(m) {
return m.toUpperCase();
})
// French, Arabic and some noble names...
.replace(/\s(Of|De|Van|Von|Ibn|??|???|???|???)\s/g, function(m) { // Honoré de Balzac, Vincent van Gogh, Otto von Bismarck, Sulayman ibn Dawud etc.
return m.toLowerCase();
})
.replace(/(^|\s)(D|?)(['’][^\s$])/g, function(m, p1, p2, p3) { // D'Artagnan or d'Artagnan / ?’???????? ??? ?’????????
return p1 + (p1 === "" ? p2/*.toUpperCase()*/ : p2.toLowerCase()) + p3.toUpperCase();
});
}
--DROP TABLE #Employee
CREATE TABLE #Employee(EmpId BIGINT IDENTITY,EmpName VARCHAR(25),Designation VARCHAR(25),ManagerID BIGINT)
INSERT INTO #Employee VALUES('M11M','Manager',NULL)
INSERT INTO #Employee VALUES('P11P','Manager',NULL)
INSERT INTO #Employee VALUES('AA','Clerk',1)
INSERT INTO #Employee VALUES('AB','Assistant',1)
INSERT INTO #Employee VALUES('ZC','Supervisor',2)
INSERT INTO #Employee VALUES('ZD','Security',2)
SELECT * FROM #Employee (NOLOCK)
;
WITH Emp_CTE
AS
(
SELECT EmpId,EmpName,Designation, ManagerID
,CASE WHEN ManagerID IS NULL THEN EmpId ELSE ManagerID END ManagerID_N
FROM #Employee
)
select EmpId,EmpName,Designation, ManagerID
FROM Emp_CTE
order BY ManagerID_N, EmpId
I’ll try to answer the actual question of what a stack is.
In the Internet architecture (TCP/IP, OSI, etc.), protocols and software are often “stacked” on top of each other, as they depend on each other for support. For example, TCP provides reliable transmissions of data, on top of IP. The same goes for LAMP, your Apache server needs to run “on top of Linux”. Think of this “stack” as your favorite stack of pancakes, where each pancake is a different layer.
Yummy.
Using Java 8, you can simply use ncopies
of Collections
class:
Object[] arrays = Collections.nCopies(size, object).stream().toArray();
In your case it will be:
Integer[] arrays = Collections.nCopies(10, Integer.valueOf(1)).stream().toArray(Integer[]::new);
.
Here is a detailed answer of a similar case of yours.
<
stands for lesser than (<) symbol
and, the >
sign stands for greater than (>) symbol
.
For more information on HTML Entities, visit this link:
After hours of struggling with this problem, I stumbled upon a solution that worked for me:
In SSDT (2012), I had originally had my Page Setup/Page units set to Centimeters. When I changed this to Inches, strangely enough, I was able to export my report to PDF without having every other page be blank.
How about:
select salesid from AXDelNotesNoTracking group by salesid having count(*) > 1;
<select ng-model="color" ng-options="(c.name+' '+c.shade) for c in colors"></select><br>
Better solution is to use NZ (null to zero) function during generating table => NZ([ColumnName]) It comes 0 where is "null" in ColumnName.
Model.find
1- Parameter: ID of the object to find.
2- If found: It returns the object (One object only).
3- If not found: raises an ActiveRecord::RecordNotFound
exception.
Model.find_by
1- Parameter: key/value
Example:
User.find_by name: 'John', email: '[email protected]'
2- If found: It returns the object.
3- If not found: returns nil
.
Note: If you want it to raise ActiveRecord::RecordNotFound
use find_by!
Model.where
1- Parameter: same as find_by
2- If found: It returns ActiveRecord::Relation
containing one or more records matching the parameters.
3- If not found: It return an Empty ActiveRecord::Relation
.
Just to add that you don't really need to create new IDs, something like the following will work.
In the layout:
<ListView
android:layout_width="match_parent"
android:layout_height="match_parent"
android:id="@android:id/list"/>
<TextView
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:id="@android:id/empty"
android:text="Empty"/>
Then in the activity:
ListView listView = (ListView) findViewById(android.R.id.list);
listView.setEmptyView(findViewById(android.R.id.empty));
help(input)
shows what keyboard shortcuts produce EOF, namely, Unix: Ctrl-D, Windows: Ctrl-Z+Return:
input([prompt]) -> string
Read a string from standard input. The trailing newline is stripped. If the user hits EOF (Unix: Ctl-D, Windows: Ctl-Z+Return), raise EOFError. On Unix, GNU readline is used if enabled. The prompt string, if given, is printed without a trailing newline before reading.
You could reproduce it using an empty file:
$ touch empty
$ python3 -c "input()" < empty
Traceback (most recent call last):
File "<string>", line 1, in <module>
EOFError: EOF when reading a line
You could use /dev/null
or nul
(Windows) as an empty file for reading. os.devnull
shows the name that is used by your OS:
$ python3 -c "import os; print(os.devnull)"
/dev/null
Note: input()
happily accepts input from a file/pipe. You don't need stdin
to be connected to the terminal:
$ echo abc | python3 -c "print(input()[::-1])"
cba
Either handle EOFError
in your code:
try:
reply = input('Enter text')
except EOFError:
break
Or configure your editor to provide a non-empty input when it runs your script e.g., by using a customized command line if it allows it: python3 "%f" < input_file
It is important to note (in case you came here by Google) that "TypeError: 'str' object is not callable" means only that a variable that was declared as String-type earlier is attempted to be used as a function (e.g. by adding parantheses in the end.)
You can get the exact same error message also, if you use any other built-in method as variable name.
A covered query is a query where all the columns in the query's result set are pulled from non-clustered indexes.
A query is made into a covered query by the judicious arrangement of indexes.
A covered query is often more performant than a non-covered query in part because non-clustered indexes have more rows per page than clustered indexes or heap indexes, so fewer pages need to be brought into memory in order to satisfy the query. They have more rows per page because only part of the table row is part of the index row.
A covering index is an index which is used in a covered query. There is no such thing as an index which, in and of itself, is a covering index. An index may be a covering index with respect to query A, while at the same time not being a covering index with respect to query B.
Check if you are building for device instead of simulator. Go to Xcode menu 'Project' -> 'Set Active SDK' change from 'Device' to 'Simulator'
Under Xcode 4.1 Check your build settings for the project and your targets. For each check under 'Code Signing' check 'Code Signing Identity' and change over to 'Don't Code Sign'
The easiest solution is to simply style the element you're inserting the text into with the following CSS property:
white-space: pre-wrap;
This property causes whitespace and newlines within the matching elements to be treated in the same way as inside a <textarea>
. That is, consecutive whitespace is not collapsed, and lines are broken at explicit newlines (but are also wrapped automatically if they exceed the width of the element).
Given that several of the answers posted here so far have been vulnerable to HTML injection (e.g. because they assign unescaped user input to innerHTML
) or otherwise buggy, let me give an example of how to do this safely and correctly, based on your original code:
document.getElementById('post-button').addEventListener('click', function () {_x000D_
var post = document.createElement('p');_x000D_
var postText = document.getElementById('post-text').value;_x000D_
post.append(postText);_x000D_
var card = document.createElement('div');_x000D_
card.append(post);_x000D_
var cardStack = document.getElementById('card-stack');_x000D_
cardStack.prepend(card);_x000D_
});
_x000D_
#card-stack p {_x000D_
background: #ddd;_x000D_
white-space: pre-wrap; /* <-- THIS PRESERVES THE LINE BREAKS */_x000D_
}_x000D_
textarea {_x000D_
width: 100%;_x000D_
}
_x000D_
<textarea id="post-text" class="form-control" rows="8" placeholder="What's up?" required>Group Schedule:_x000D_
_x000D_
Tuesday practice @ 5th floor (8pm - 11 pm)_x000D_
_x000D_
Thursday practice @ 5th floor (8pm - 11 pm)_x000D_
_x000D_
Sunday practice @ (9pm - 12 am)</textarea><br>_x000D_
<input type="button" id="post-button" value="Post!">_x000D_
<div id="card-stack"></div>
_x000D_
Note that, like your original code, the snippet above uses append()
and prepend()
. As of this writing, those functions are still considered experimental and not fully supported by all browsers. If you want to be safe and remain compatible with older browsers, you can substitute them pretty easily as follows:
element.append(otherElement)
can be replaced with element.appendChild(otherElement)
;element.prepend(otherElement)
can be replaced with element.insertBefore(otherElement, element.firstChild)
;element.append(stringOfText)
can be replaced with element.appendChild(document.createTextNode(stringOfText))
;element.prepend(stringOfText)
can be replaced with element.insertBefore(document.createTextNode(stringOfText), element.firstChild)
;element
is empty, both element.append(stringOfText)
and element.prepend(stringOfText)
can simply be replaced with element.textContent = stringOfText
.Here's the same snippet as above, but without using append()
or prepend()
:
document.getElementById('post-button').addEventListener('click', function () {_x000D_
var post = document.createElement('p');_x000D_
var postText = document.getElementById('post-text').value;_x000D_
post.textContent = postText;_x000D_
var card = document.createElement('div');_x000D_
card.appendChild(post);_x000D_
var cardStack = document.getElementById('card-stack');_x000D_
cardStack.insertBefore(card, cardStack.firstChild);_x000D_
});
_x000D_
#card-stack p {_x000D_
background: #ddd;_x000D_
white-space: pre-wrap; /* <-- THIS PRESERVES THE LINE BREAKS */_x000D_
}_x000D_
textarea {_x000D_
width: 100%;_x000D_
}
_x000D_
<textarea id="post-text" class="form-control" rows="8" placeholder="What's up?" required>Group Schedule:_x000D_
_x000D_
Tuesday practice @ 5th floor (8pm - 11 pm)_x000D_
_x000D_
Thursday practice @ 5th floor (8pm - 11 pm)_x000D_
_x000D_
Sunday practice @ (9pm - 12 am)</textarea><br>_x000D_
<input type="button" id="post-button" value="Post!">_x000D_
<div id="card-stack"></div>
_x000D_
Ps. If you really want to do this without using the CSS white-space
property, an alternative solution would be to explicitly replace any newline characters in the text with <br>
HTML tags. The tricky part is that, to avoid introducing subtle bugs and potential security holes, you have to first escape any HTML metacharacters (at a minimum, &
and <
) in the text before you do this replacement.
Probably the simplest and safest way to do that is to let the browser handle the HTML-escaping for you, like this:
var post = document.createElement('p');
post.textContent = postText;
post.innerHTML = post.innerHTML.replace(/\n/g, '<br>\n');
document.getElementById('post-button').addEventListener('click', function () {_x000D_
var post = document.createElement('p');_x000D_
var postText = document.getElementById('post-text').value;_x000D_
post.textContent = postText;_x000D_
post.innerHTML = post.innerHTML.replace(/\n/g, '<br>\n'); // <-- THIS FIXES THE LINE BREAKS_x000D_
var card = document.createElement('div');_x000D_
card.appendChild(post);_x000D_
var cardStack = document.getElementById('card-stack');_x000D_
cardStack.insertBefore(card, cardStack.firstChild);_x000D_
});
_x000D_
#card-stack p {_x000D_
background: #ddd;_x000D_
}_x000D_
textarea {_x000D_
width: 100%;_x000D_
}
_x000D_
<textarea id="post-text" class="form-control" rows="8" placeholder="What's up?" required>Group Schedule:_x000D_
_x000D_
Tuesday practice @ 5th floor (8pm - 11 pm)_x000D_
_x000D_
Thursday practice @ 5th floor (8pm - 11 pm)_x000D_
_x000D_
Sunday practice @ (9pm - 12 am)</textarea><br>_x000D_
<input type="button" id="post-button" value="Post!">_x000D_
<div id="card-stack"></div>
_x000D_
Note that, while this will fix the line breaks, it won't prevent consecutive whitespace from being collapsed by the HTML renderer. It's possible to (sort of) emulate that by replacing some of the whitespace in the text with non-breaking spaces, but honestly, that's getting rather complicated for something that can be trivially solved with a single line of CSS.
3 Ways to Install Applications On Android Without The Market
And don't forget to enable Unknown sources in your Android device Settings, before installing apk, else Android platform will not allow you to install apk directly
An other solution is to use the response.status function. This will give you the http status wich is returned by the ajax call.
function checkHttpStatus(url) {
$.ajax({
type: "GET",
data: {},
url: url,
error: function(response) {
alert(url + " returns a " + response.status);
}, success() {
alert(url + " Good link");
}
});
}
If Table variable has large data, then instead of table variable(@table) create temp table (#table).table variable doesn't allow to create index after insert.
CREATE TABLE #Table(C1 int,
C2 NVarchar(100) , C3 varchar(100)
UNIQUE CLUSTERED (c1)
);
Create table with unique clustered index
Insert data into Temp "#Table" table
Create non clustered indexes.
CREATE NONCLUSTERED INDEX IX1 ON #Table (C2,C3);
So, I'm used to use
var nameOfList = new List("objectName", "objectName", "objectName")
This is how it works for me but might be different for you, I recommend to watch some Unity Tutorials on the Scripting API.
After trying several methods, to summarize it, this is how I did it. Following are two ways of avoiding/removing \xa0 characters from parsed HTML string.
Assume we have our raw html as following:
raw_html = '<p>Dear Parent, </p><p><span style="font-size: 1rem;">This is a test message, </span><span style="font-size: 1rem;">kindly ignore it. </span></p><p><span style="font-size: 1rem;">Thanks</span></p>'
So lets try to clean this HTML string:
from bs4 import BeautifulSoup
raw_html = '<p>Dear Parent, </p><p><span style="font-size: 1rem;">This is a test message, </span><span style="font-size: 1rem;">kindly ignore it. </span></p><p><span style="font-size: 1rem;">Thanks</span></p>'
text_string = BeautifulSoup(raw_html, "lxml").text
print text_string
#u'Dear Parent,\xa0This is a test message,\xa0kindly ignore it.\xa0Thanks'
The above code produces these characters \xa0 in the string. To remove them properly, we can use two ways.
Method # 1 (Recommended): The first one is BeautifulSoup's get_text method with strip argument as True So our code becomes:
clean_text = BeautifulSoup(raw_html, "lxml").get_text(strip=True)
print clean_text
# Dear Parent,This is a test message,kindly ignore it.Thanks
Method # 2: The other option is to use python's library unicodedata
import unicodedata
text_string = BeautifulSoup(raw_html, "lxml").text
clean_text = unicodedata.normalize("NFKD",text_string)
print clean_text
# u'Dear Parent,This is a test message,kindly ignore it.Thanks'
I have also detailed these methods on this blog which you may want to refer.
bmail. Just install the EXE and run a line like this:
bmail -s myMailServer -f [email protected] -t [email protected] -a "Production Release Performed"
Getting a product key is free. Here is how I did it:
I just downloaded the 2012 Express install ISO image. After install I got the message "This product will expire in 30 day(s). Registration is required for the continued use of Microsoft Visual Studio Express 2012 for Web."
On that same screen is a register online link. Clicking that I signed in with my live account, updated my profile, and got a registration key.
Important benefit of the dynamic resources
if application startup takes extremely long time, you must use dynamic resources, because static resources are always loaded when the window or app is created, while dynamic resources are loaded when they’re first used.
However, you won’t see any benefit unless your resource is extremely large and complex.
In C++11 there are some nice new convert functions from std::string
to a number type.
So instead of
atoi( str.c_str() )
you can use
std::stoi( str )
where str
is your number as std::string
.
There are version for all flavours of numbers:
long stol(string)
, float stof(string)
, double stod(string)
,...
see http://en.cppreference.com/w/cpp/string/basic_string/stol
It's easier using Array.filter
:
var unique = arr.filter(function(elem, index, self) {
return index === self.indexOf(elem);
})
Generalizing on rotmax's answer, here is a full solution to search & replace all instances in a string. If both substrings are of different size, the substring is replaced using string::erase and string::insert., otherwise the faster string::replace is used.
void FindReplace(string& line, string& oldString, string& newString) {
const size_t oldSize = oldString.length();
// do nothing if line is shorter than the string to find
if( oldSize > line.length() ) return;
const size_t newSize = newString.length();
for( size_t pos = 0; ; pos += newSize ) {
// Locate the substring to replace
pos = line.find( oldString, pos );
if( pos == string::npos ) return;
if( oldSize == newSize ) {
// if they're same size, use std::string::replace
line.replace( pos, oldSize, newString );
} else {
// if not same size, replace by erasing and inserting
line.erase( pos, oldSize );
line.insert( pos, newString );
}
}
}
You can post requests directly from the browser with ReqBin. No plugin or desktop app is required.
There is a known issue with the new NDIS6 driver, you can install it to use the NDIS5 driver
Try reinstalling it with a parameter (Run as administrator)
> VirtualBox-5.0.11-104101-Win.exe -msiparams NETWORKTYPE=NDIS5
This worked for me.
Update: Newer versions made it easier to pick the NDIS driver from within the installation wizard - just pick NDIS5 when asked.
ref: https://www.virtualbox.org/manual/ch02.html#install-win-performing
<ui:include>
Most basic way is <ui:include>
. The included content must be placed inside <ui:composition>
.
Kickoff example of the master page /page.xhtml
:
<!DOCTYPE html>
<html lang="en"
xmlns="http://www.w3.org/1999/xhtml"
xmlns:f="http://xmlns.jcp.org/jsf/core"
xmlns:h="http://xmlns.jcp.org/jsf/html"
xmlns:ui="http://xmlns.jcp.org/jsf/facelets">
<h:head>
<title>Include demo</title>
</h:head>
<h:body>
<h1>Master page</h1>
<p>Master page blah blah lorem ipsum</p>
<ui:include src="/WEB-INF/include.xhtml" />
</h:body>
</html>
The include page /WEB-INF/include.xhtml
(yes, this is the file in its entirety, any tags outside <ui:composition>
are unnecessary as they are ignored by Facelets anyway):
<ui:composition
xmlns="http://www.w3.org/1999/xhtml"
xmlns:f="http://xmlns.jcp.org/jsf/core"
xmlns:h="http://xmlns.jcp.org/jsf/html"
xmlns:ui="http://xmlns.jcp.org/jsf/facelets">
<h2>Include page</h2>
<p>Include page blah blah lorem ipsum</p>
</ui:composition>
This needs to be opened by /page.xhtml
. Do note that you don't need to repeat <html>
, <h:head>
and <h:body>
inside the include file as that would otherwise result in invalid HTML.
You can use a dynamic EL expression in <ui:include src>
. See also How to ajax-refresh dynamic include content by navigation menu? (JSF SPA).
<ui:define>
/<ui:insert>
A more advanced way of including is templating. This includes basically the other way round. The master template page should use <ui:insert>
to declare places to insert defined template content. The template client page which is using the master template page should use <ui:define>
to define the template content which is to be inserted.
Master template page /WEB-INF/template.xhtml
(as a design hint: the header, menu and footer can in turn even be <ui:include>
files):
<!DOCTYPE html>
<html lang="en"
xmlns="http://www.w3.org/1999/xhtml"
xmlns:f="http://xmlns.jcp.org/jsf/core"
xmlns:h="http://xmlns.jcp.org/jsf/html"
xmlns:ui="http://xmlns.jcp.org/jsf/facelets">
<h:head>
<title><ui:insert name="title">Default title</ui:insert></title>
</h:head>
<h:body>
<div id="header">Header</div>
<div id="menu">Menu</div>
<div id="content"><ui:insert name="content">Default content</ui:insert></div>
<div id="footer">Footer</div>
</h:body>
</html>
Template client page /page.xhtml
(note the template
attribute; also here, this is the file in its entirety):
<ui:composition template="/WEB-INF/template.xhtml"
xmlns="http://www.w3.org/1999/xhtml"
xmlns:f="http://xmlns.jcp.org/jsf/core"
xmlns:h="http://xmlns.jcp.org/jsf/html"
xmlns:ui="http://xmlns.jcp.org/jsf/facelets">
<ui:define name="title">
New page title here
</ui:define>
<ui:define name="content">
<h1>New content here</h1>
<p>Blah blah</p>
</ui:define>
</ui:composition>
This needs to be opened by /page.xhtml
. If there is no <ui:define>
, then the default content inside <ui:insert>
will be displayed instead, if any.
<ui:param>
You can pass parameters to <ui:include>
or <ui:composition template>
by <ui:param>
.
<ui:include ...>
<ui:param name="foo" value="#{bean.foo}" />
</ui:include>
<ui:composition template="...">
<ui:param name="foo" value="#{bean.foo}" />
...
</ui:composition >
Inside the include/template file, it'll be available as #{foo}
. In case you need to pass "many" parameters to <ui:include>
, then you'd better consider registering the include file as a tagfile, so that you can ultimately use it like so <my:tagname foo="#{bean.foo}">
. See also When to use <ui:include>, tag files, composite components and/or custom components?
You can even pass whole beans, methods and parameters via <ui:param>
. See also JSF 2: how to pass an action including an argument to be invoked to a Facelets sub view (using ui:include and ui:param)?
The files which aren't supposed to be publicly accessible by just entering/guessing its URL, need to be placed in /WEB-INF
folder, like as the include file and the template file in above example. See also Which XHTML files do I need to put in /WEB-INF and which not?
There doesn't need to be any markup (HTML code) outside <ui:composition>
and <ui:define>
. You can put any, but they will be ignored by Facelets. Putting markup in there is only useful for web designers. See also Is there a way to run a JSF page without building the whole project?
The HTML5 doctype is the recommended doctype these days, "in spite of" that it's a XHTML file. You should see XHTML as a language which allows you to produce HTML output using a XML based tool. See also Is it possible to use JSF+Facelets with HTML 4/5? and JavaServer Faces 2.2 and HTML5 support, why is XHTML still being used.
CSS/JS/image files can be included as dynamically relocatable/localized/versioned resources. See also How to reference CSS / JS / image resource in Facelets template?
You can put Facelets files in a reusable JAR file. See also Structure for multiple JSF projects with shared code.
For real world examples of advanced Facelets templating, check the src/main/webapp
folder of Java EE Kickoff App source code and OmniFaces showcase site source code.
Typically, a Json object would contain your values (including arrays) as named fields within. So, something like:
JSONObject jo = new JSONObject();
JSONArray ja = new JSONArray();
// populate the array
jo.put("arrayName",ja);
Which in JSON will be {"arrayName":[...]}.
var obj={_x000D_
name:"SanD",_x000D_
age:"27"_x000D_
}_x000D_
Object.keys(obj).forEach((key)=>console.log(key,obj[key]));
_x000D_
To loop through JavaScript Object we can use forEach and to optimize code we can use arrow function
grep -R "string" /directory/
-R follows also symlinks when -r does not.
You can try Dummynet, it can simulates queue and bandwidth limitations, delays, packet losses, and multipath effects
UPDATE tableName SET col1='000' WHERE id='3' OR id='5'
This should achieve what you'r looking for. Just add more id's. I have tested it.
None of the above directive suggestions were useful to me. If you have a bootstrap navbar like this
<ul class="nav navbar-nav">
<li><a ng-href="#/">Home</a></li>
<li><a ng-href="#/about">About</a></li>
...
</ul>
(that could be a $ yo angular
startup) then you want to add .active
to the parent <li>
element class list, not the element itself; i.e <li class="active">..</li>
. So I wrote this :
.directive('setParentActive', ['$location', function($location) {
return {
restrict: 'A',
link: function(scope, element, attrs, controller) {
var classActive = attrs.setParentActive || 'active',
path = attrs.ngHref.replace('#', '');
scope.location = $location;
scope.$watch('location.path()', function(newPath) {
if (path == newPath) {
element.parent().addClass(classActive);
} else {
element.parent().removeClass(classActive);
}
})
}
}
}])
usage set-parent-active
; .active
is default so not needed to be set
<li><a ng-href="#/about" set-parent-active>About</a></li>
and the parent <li>
element will be .active
when the link is active. To use an alternative .active
class like .highlight
, simply
<li><a ng-href="#/about" set-parent-active="highlight">About</a></li>
You are missing a step. You need to log / store the values on your server (mailgun is a client). Then you need to retrieve those values on your server (your pc with your web browser will be a client). These will be two totally different aspx files (or the same one with different parameters).
aspx page 1 (the one that mailgun has):
var val = Request.Form["recipient"];
var file = new File(filename);
file.write(val);
close(file);
aspx page 2:
var contents = "";
if (File.exists(filename))
var file = File.open(filename);
contents = file.readtoend();
file.close()
Request.write(contents);
I prefer using pip in case you are using virtualenv:
apt install libpython2.7 libpython2.7-dev
pip install psycopg2
I found the answer, thanks to your information Michelle.
You can indeed get the right view using View#getChildAt(int index)
. The catch is that it starts counting from the first visible item. In fact, you can only get the visible items. You solve this with ListView#getFirstVisiblePosition()
.
Example:
private void updateView(int index){
View v = yourListView.getChildAt(index -
yourListView.getFirstVisiblePosition());
if(v == null)
return;
TextView someText = (TextView) v.findViewById(R.id.sometextview);
someText.setText("Hi! I updated you manually!");
}
Actually, there is a way to set global defaults for Sun's JVM via environment variables.
you can do
strings test.log | grep -i
this will convert give output as a readable string to grep.
In JavaScript, we can close a window only if it is opened by using window.open
method:
window.open('https://www.google.com');
window.close();
But to close a window which has not been opened using window.open()
, you must
window.open()
)window.open("", "_self");
window.close();
to change the object owner try the following
EXEC sp_changedbowner 'sa'
that however is not your problem, to see diagrams the Da Vinci Tools objects have to be created (you will see tables and procs that start with dt_) after that
>>> x = "2342.34"
>>> float(x)
2342.3400000000001
There you go. Use float (which behaves like and has the same precision as a C,C++, or Java double).
$count = DB::table('category_issue')->count();
will give you the number of items.
For more detailed information check Fluent Query Builder section in beautiful Laravel Documentation.
Instead of using regex to remove those "crazy" characters, just convert them to ASCII, which will remove accents, but will keep the letters.
astr <- "Ábcdêãçoàúü"
iconv(astr, from = 'UTF-8', to = 'ASCII//TRANSLIT')
which results in
[1] "Abcdeacoauu"