Like so:
filtered_list = [i for (i, v) in zip(list_a, filter) if v]
Using zip
is the pythonic way to iterate over multiple sequences in parallel, without needing any indexing. This assumes both sequences have the same length (zip stops after the shortest runs out). Using itertools
for such a simple case is a bit overkill ...
One thing you do in your example you should really stop doing is comparing things to True, this is usually not necessary. Instead of if filter[idx]==True: ...
, you can simply write if filter[idx]: ...
.
DateFormat dateFormat = new SimpleDateFormat("yyyy-MM-dd");
Date date;
try {
date = dateFormat.parse("2013-12-4");
System.out.println(date.toString()); // Wed Dec 04 00:00:00 CST 2013
String output = dateFormat.format(date);
System.out.println(output); // 2013-12-04
}
catch (ParseException e) {
e.printStackTrace();
}
It works fine for me.
This method works for everything (integers and even doubles) except zero (it calls it invalid):
The while loop is just for the repetitive user input. Basically it checks if the integer x/x = 1. If it does (as it would with a number), its an integer/double. If it doesn't, it obviously it isn't. Zero fails the test though.
#include <stdio.h>
#include <math.h>
void main () {
double x;
int notDouble;
int true = 1;
while(true) {
printf("Input an integer: \n");
scanf("%lf", &x);
if (x/x != 1) {
notDouble = 1;
fflush(stdin);
}
if (notDouble != 1) {
printf("Input is valid\n");
}
else {
printf("Input is invalid\n");
}
notDouble = 0;
}
}
Just for reference, if you are using:
$(el).offset().top
To get the position, it can be affected by the position of the parent element. Thus you may want to be consistent and use the following to set it:
$(el).offset({top: pos});
As opposed to the CSS methods above.
or run suexec and never have to change permissions again.
Just to confirm that you are selecting the element in the right way. Try this one
if ($('#some_element').length == 0) {
//Add it to the dom
}
AccountList.Split("\r\n");
All your problems derive from this
byte[] encrypted = cipher.doFinal(toEncrypt.getBytes());
return encrypted;
Which are enclosed in a try, catch block, the problem is that in case the program found an exception you are not returning anything. Put it like this (modify it as your program logic stands):
public static byte[] encrypt(String toEncrypt) throws Exception{
try{
String plaintext = toEncrypt;
String key = "01234567890abcde";
String iv = "fedcba9876543210";
SecretKeySpec keyspec = new SecretKeySpec(key.getBytes(), "AES");
IvParameterSpec ivspec = new IvParameterSpec(iv.getBytes());
Cipher cipher = Cipher.getInstance("AES/CBC/NoPadding");
cipher.init(Cipher.ENCRYPT_MODE,keyspec,ivspec);
byte[] encrypted = cipher.doFinal(toEncrypt.getBytes());
return encrypted;
} catch(Exception e){
return null; // Always must return something
}
}
For the second one you must catch the Exception from the encrypt method call, like this (also modify it as your program logic stands):
public void actionPerformed(ActionEvent e)
.
.
.
try {
byte[] encrypted = encrypt(concatURL);
String encryptedString = bytesToHex(encrypted);
content.removeAll();
content.add(new JLabel("Concatenated User Input -->" + concatURL));
content.add(encryptedTextField);
setContentPane(content);
} catch (Exception exc) {
// TODO: handle exception
}
}
The lessons you must learn from this:
Your secondNumber seems to be an ivar, so you have to use a local var to unwrap the optional. And careful. You don't test secondNumber for 0, which can lead into a division by zero. Technically you need another case to handle an impossible operation. For instance checkin if the number is 0 and do nothing in that case would at least not crash.
@IBAction func equals(sender: AnyObject) {
guard let number = Screen.text?.toInt(), number > 0 else {
return
}
secondNumber = number
if operation == "+"{
result = firstNumber + secondNumber
}
else if operation == "-" {
result = firstNumber - secondNumber
}
else if operation == "x" {
result = firstNumber * secondNumber
}
else {
result = firstNumber / secondNumber
}
Screen.text = "\(result)"
}
I've written a log file monitor before, and I found that the impact on system performance of polling the attributes of a single file, a few times a second, is actually very small.
Java 7, as part of NIO.2 has added the WatchService API
The WatchService API is designed for applications that need to be notified about file change events.
One thing you might want to look at is the Commons DBCP project. It provides a BasicDataSource that is configured fairly similarly to your example. To use that you need the database vendor's JDBC JAR in your classpath and you have to specify the vendor's driver class name and the database URL in the proper format.
Edit:
If you want to configure a BasicDataSource
for MySQL, you would do something like this:
BasicDataSource dataSource = new BasicDataSource();
dataSource.setDriverClassName("com.mysql.jdbc.Driver");
dataSource.setUsername("username");
dataSource.setPassword("password");
dataSource.setUrl("jdbc:mysql://<host>:<port>/<database>");
dataSource.setMaxActive(10);
dataSource.setMaxIdle(5);
dataSource.setInitialSize(5);
dataSource.setValidationQuery("SELECT 1");
Code that needs a DataSource
can then use that.
=TEXT(A1,"DD/MM/YYYY hh:mm:ss")
(24 hour time)
=TEXT(A1,"DD/MM/YYYY hh:mm:ss AM/PM")
(standard time)
Code: https://github.com/uxsolutions/bootstrap-datepicker
(Docs: https://bootstrap-datepicker.readthedocs.io/en/latest/)
Here's a bug report:
https://github.com/uxsolutions/bootstrap-datepicker/issues/1957
If anyone has a solution/workaround for this one, would be great if you'd include it.
Nginx:
location ~* \.(eot|ttf|woff)$ {
add_header Access-Control-Allow-Origin '*';
}
AWS S3:
http://schock.net/articles/2013/07/03/hosting-web-fonts-on-a-cdn-youre-going-to-need-some-cors/
Ripgrep, which is a fast alternative to grep, has just introduced the --count-matches
flag allowing counting each match in version 0.9 (I'm using the above example to stay consistent):
> echo afoobarfoobar | rg --count foo
1
> echo afoobarfoobar | rg --count-matches foo
2
As asked by OP, ripgrep allows for regex pattern as well (--regexp <PATTERN>
).
Also it can print each (line) match on a separate line:
> echo -e "line1foo\nline2afoobarfoobar" | rg foo
line1foo
line2afoobarfoobar
This line of code might not work in IE 8 because of native support problems.
$(".hidden").attr("placeholder", "Type here to search");
You can try importing a JQuery placeholder plugin for this task. Simply import it to your libraries and initiate from the sample code below.
$('input, textarea').placeholder();
the above script may not run in ksh. you have to use the 'let' opparand to assing the value and then echo it.
val1=4
val2=3
let val3=$val1+$val2
echo $val3
I suggest not using an array unless you have multiple objects to consider. There isn't anything wrong this statement:
var myMappings = {
"Name": 0.1,
"Phone": 0.1,
"Address": 0.5,
"Zip": 0.1,
"Comments": 0.2
};
for (var col in myMappings) {
alert((myMappings[col] * 100) + "%");
}
I was able to install libc6 2.17
in Debian Wheezy
by editing the recommendations in perror's answer:
IMPORTANT
You need to exit out of your display manager by pressing CTRL-ALT-F1.
Then you can stop x (slim
) with sudo /etc/init.d/slim stop
(replace slim with mdm
or lightdm
or whatever)
Add the following line to the file /etc/apt/sources.list
:
deb http://ftp.debian.org/debian experimental main
Should be changed to:
deb http://ftp.debian.org/debian sid main
Then follow the rest of perror's post:
Update your package database:
apt-get update
Install the eglibc
package:
apt-get -t sid install libc6-amd64 libc6-dev libc6-dbg
IMPORTANT
After done updating libc6
, restart computer, and you should comment out or remove the sid source you just added (deb http://ftp.debian.org/debian sid main
), or else you risk upgrading your whole distro to sid.
Hope this helps. It took me a while to figure out.
I'm also interested in this problem.
As @Thasmo mentioned, port forwardings can be specified ONLY with docker run
(and docker create
) command.
Other commands, docker start
does not have -p
option and docker port
only displays current forwardings.
To add port forwardings, I always follow these steps,
stop running container
docker stop test01
commit the container
docker commit test01 test02
NOTE: The above, test02
is a new image that I'm constructing from the test01
container.
re-run from the commited image
docker run -p 8080:8080 -td test02
Where the first 8080 is the local port and the second 8080 is the container port.
I received the same error in pushing files to my private bitbucket repository. For some odd reasons, the request couldn't be sent and an empty reply was the result! I tried again with a proxy tunnel (you can use any other VPN applications) and it has been solved till now.
Well that's pretty easy actually with GCD. A typical workflow would be something like this:
dispatch_queue_t queue = dispatch_get_global_queue(DISPATCH_QUEUE_PRIORITY_DEFAULT, 0ul);
dispatch_async(queue, ^{
// Perform async operation
// Call your method/function here
// Example:
// NSString *result = [anObject calculateSomething];
dispatch_sync(dispatch_get_main_queue(), ^{
// Update UI
// Example:
// self.myLabel.text = result;
});
});
For more on GCD you can take a look into Apple's documentation here
If you have MacPorts installed (https://www.macports.org/), do this:
sudo port install apache-ant
I have an improvement on the answer @DewiMorgan gave for VS 2008 express. I have since confirmed it also works on VS 2005 express.
It lets you run the software without it EVER requiring registration, and also makes it so you don't have to manually delete the key every 30 days. It does this by preventing the key from ever being written.
(Deleting the correct key can also let you avoid registering VS 2015 "Community Edition," but using permissions to prevent the key being written will make the IDE crash, so I haven't found a great solution for it yet.)
The directions assume Visual C# Express 2008, but this works on all the other visual studio express apps I can find.
HKEY_CURRENT_USER\Software\Microsoft\VCSExpress\9.0\Registration
.Params
.
permissions
.Advanced...
permissions
tab, and uncheck the box labeled Inherit from parent the permission entries that apply to child objects. Include these with entries explicitly defined here.
copy
.copy
button was renamed to add
, as in add inherited permissions as explicit permissions
.On Win10, there is a button called "Disable Inheritance" that does the same thing as the checkbox mentioned in step 5. It is necessary to create new permissions just for
Registration
, instead of inheriting those permissions from an upstream registry key.
OK
in the 'Advanced' window.Back in the first permissions window, click your user, and uncheck Full Control
.
Do the same thing for the Administrators
group.
Hit OK
or Apply
.
Congratulations, you will never again be plagued by the registration nag, and just like WinRAR, your trial will never expire.
You may have to do the same thing for other (non-Visual C#) programs, like Visual Basic express or Visual C++ express.
It has been reported by @IronManMark20 in the comments that simply deleting the registry key works and that Visual Studio does not attempt to re-create the key. I am not sure if I believe this because when I installed VS on a clean windows installation, the key was not created until I ran VS at least once. But for what it's worth, that may be an option as well.
I use this vanilla JS solution:
const element = document.getElementById('textfield')
element.addEventListener('paste', e => e.preventDefault())
If you're getting error TS1005: 'finally' expected.
, it means you forgot to implement catch
after try
. Generally, it means the syntax you attempted to use was incorrect.
You can use the following formula,
=IF(ISTEXT(REGEXEXTRACT(A1; "Bla")); "Yes";"No")
And using the joiner
from http://jinja.pocoo.org/docs/dev/templates/#joiner
{% set comma = joiner(",") %}
{% for user in userlist %}
{{ comma() }}<a href="/profile/{{ user }}/">{{ user }}</a>
{% endfor %}
It's made for this exact purpose. Normally a join or a check of forloop.last would suffice for a single list, but for multiple groups of things it's useful.
A more complex example on why you would use it.
{% set pipe = joiner("|") %}
{% if categories %} {{ pipe() }}
Categories: {{ categories|join(", ") }}
{% endif %}
{% if author %} {{ pipe() }}
Author: {{ author() }}
{% endif %}
{% if can_edit %} {{ pipe() }}
<a href="?action=edit">Edit</a>
{% endif %}
Use NSError to communicate failures rather than exceptions.
Quick points about NSError:
NSError allows for C style error codes (integers) to clearly identify the root cause and hopefully allow the error handler to overcome the error. You can wrap error codes from C libraries like SQLite in NSError instances very easily.
NSError also has the benefit of being an object and offers a way to describe the error in more detail with its userInfo dictionary member.
But best of all, NSError CANNOT be thrown so it encourages a more proactive approach to error handling, in contrast to other languages which simply throw the hot potato further and further up the call stack at which point it can only be reported to the user and not handled in any meaningful way (not if you believe in following OOP's biggest tenet of information hiding that is).
Reference Link: Reference
Or if you still want to use formatter created from pattern you can just use LocalDateTime instead of Instant:
LocalDateTime datetime = LocalDateTime.now();
DateTimeFormatter.ofPattern("yyyy-MM-dd HH:mm:ss").format(datetime)
I find Selenium tests more useful with integration or functional (end-to-end) testing. I am working with trying to use org.springframework.mock.web, but I am not very far along. I am attaching a sample controller with a jMock test suite.
First, the Controller:
package com.company.admin.web;
import javax.validation.Valid;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Controller;
import org.springframework.ui.Model;
import org.springframework.validation.BindingResult;
import org.springframework.validation.ObjectError;
import org.springframework.web.bind.annotation.ModelAttribute;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RequestMethod;
import org.springframework.web.bind.annotation.SessionAttributes;
import org.springframework.web.bind.support.SessionStatus;
import com.company.admin.domain.PaymentDetail;
import com.company.admin.service.PaymentSearchService;
import com.company.admin.service.UserRequestAuditTrail;
import com.company.admin.web.form.SearchCriteria;
/**
* Controls the interactions regarding to the refunds.
*
* @author slgelma
*
*/
@Controller
@SessionAttributes({"user", "authorization"})
public class SearchTransactionController {
public static final String SEARCH_TRANSACTION_PAGE = "searchtransaction";
private PaymentSearchService searchService;
//private Validator searchCriteriaValidator;
private UserRequestAuditTrail notifications;
@Autowired
public void setSearchService(PaymentSearchService searchService) {
this.searchService = searchService;
}
@Autowired
public void setNotifications(UserRequestAuditTrail notifications) {
this.notifications = notifications;
}
@RequestMapping(value="/" + SEARCH_TRANSACTION_PAGE)
public String setUpTransactionSearch(Model model) {
SearchCriteria searchCriteria = new SearchCriteria();
model.addAttribute("searchCriteria", searchCriteria);
notifications.transferTo(SEARCH_TRANSACTION_PAGE);
return SEARCH_TRANSACTION_PAGE;
}
@RequestMapping(value="/" + SEARCH_TRANSACTION_PAGE, method=RequestMethod.POST, params="cancel")
public String cancelSearch() {
notifications.redirectTo(HomeController.HOME_PAGE);
return "redirect:/" + HomeController.HOME_PAGE;
}
@RequestMapping(value="/" + SEARCH_TRANSACTION_PAGE, method=RequestMethod.POST, params="execute")
public String executeSearch(
@ModelAttribute("searchCriteria") @Valid SearchCriteria searchCriteria,
BindingResult result, Model model,
SessionStatus status) {
//searchCriteriaValidator.validate(criteria, result);
if (result.hasErrors()) {
notifications.transferTo(SEARCH_TRANSACTION_PAGE);
return SEARCH_TRANSACTION_PAGE;
} else {
PaymentDetail payment =
searchService.getAuthorizationFor(searchCriteria.geteWiseTransactionId());
if (payment == null) {
ObjectError error = new ObjectError(
"eWiseTransactionId", "Transaction not found");
result.addError(error);
model.addAttribute("searchCriteria", searchCriteria);
notifications.transferTo(SEARCH_TRANSACTION_PAGE);
return SEARCH_TRANSACTION_PAGE;
} else {
model.addAttribute("authorization", payment);
notifications.redirectTo(PaymentDetailController.PAYMENT_DETAIL_PAGE);
return "redirect:/" + PaymentDetailController.PAYMENT_DETAIL_PAGE;
}
}
}
}
Next, the test:
package test.unit.com.company.admin.web;
import static org.hamcrest.Matchers.containsString;
import static org.hamcrest.Matchers.equalTo;
import static org.junit.Assert.assertThat;
import org.jmock.Expectations;
import org.jmock.Mockery;
import org.jmock.integration.junit4.JMock;
import org.jmock.integration.junit4.JUnit4Mockery;
import org.junit.Before;
import org.junit.Test;
import org.junit.runner.RunWith;
import org.springframework.ui.Model;
import org.springframework.validation.BindingResult;
import org.springframework.validation.ObjectError;
import org.springframework.web.bind.support.SessionStatus;
import com.company.admin.domain.PaymentDetail;
import com.company.admin.service.PaymentSearchService;
import com.company.admin.service.UserRequestAuditTrail;
import com.company.admin.web.HomeController;
import com.company.admin.web.PaymentDetailController;
import com.company.admin.web.SearchTransactionController;
import com.company.admin.web.form.SearchCriteria;
/**
* Tests the behavior of the SearchTransactionController.
* @author slgelma
*
*/
@RunWith(JMock.class)
public class SearchTransactionControllerTest {
private final Mockery context = new JUnit4Mockery();
private final SearchTransactionController controller = new SearchTransactionController();
private final PaymentSearchService searchService = context.mock(PaymentSearchService.class);
private final UserRequestAuditTrail notifications = context.mock(UserRequestAuditTrail.class);
private final Model model = context.mock(Model.class);
/**
* @throws java.lang.Exception
*/
@Before
public void setUp() throws Exception {
controller.setSearchService(searchService);
controller.setNotifications(notifications);
}
@Test
public void setUpTheSearchForm() {
final String target = SearchTransactionController.SEARCH_TRANSACTION_PAGE;
context.checking(new Expectations() {{
oneOf(model).addAttribute(
with(any(String.class)), with(any(Object.class)));
oneOf(notifications).transferTo(with(any(String.class)));
}});
String nextPage = controller.setUpTransactionSearch(model);
assertThat("Controller is not requesting the correct form",
target, equalTo(nextPage));
}
@Test
public void cancelSearchTest() {
final String target = HomeController.HOME_PAGE;
context.checking(new Expectations(){{
never(model).addAttribute(with(any(String.class)), with(any(Object.class)));
oneOf(notifications).redirectTo(with(any(String.class)));
}});
String nextPage = controller.cancelSearch();
assertThat("Controller is not requesting the correct form",
nextPage, containsString(target));
}
@Test
public void executeSearchWithNullTransaction() {
final String target = SearchTransactionController.SEARCH_TRANSACTION_PAGE;
final SearchCriteria searchCriteria = new SearchCriteria();
searchCriteria.seteWiseTransactionId(null);
final BindingResult result = context.mock(BindingResult.class);
final SessionStatus status = context.mock(SessionStatus.class);
context.checking(new Expectations() {{
allowing(result).hasErrors(); will(returnValue(true));
never(model).addAttribute(with(any(String.class)), with(any(Object.class)));
never(searchService).getAuthorizationFor(searchCriteria.geteWiseTransactionId());
oneOf(notifications).transferTo(with(any(String.class)));
}});
String nextPage = controller.executeSearch(searchCriteria, result, model, status);
assertThat("Controller is not requesting the correct form",
target, equalTo(nextPage));
}
@Test
public void executeSearchWithEmptyTransaction() {
final String target = SearchTransactionController.SEARCH_TRANSACTION_PAGE;
final SearchCriteria searchCriteria = new SearchCriteria();
searchCriteria.seteWiseTransactionId("");
final BindingResult result = context.mock(BindingResult.class);
final SessionStatus status = context.mock(SessionStatus.class);
context.checking(new Expectations() {{
allowing(result).hasErrors(); will(returnValue(true));
never(model).addAttribute(with(any(String.class)), with(any(Object.class)));
never(searchService).getAuthorizationFor(searchCriteria.geteWiseTransactionId());
oneOf(notifications).transferTo(with(any(String.class)));
}});
String nextPage = controller.executeSearch(searchCriteria, result, model, status);
assertThat("Controller is not requesting the correct form",
target, equalTo(nextPage));
}
@Test
public void executeSearchWithTransactionNotFound() {
final String target = SearchTransactionController.SEARCH_TRANSACTION_PAGE;
final String badTransactionId = "badboy";
final PaymentDetail transactionNotFound = null;
final SearchCriteria searchCriteria = new SearchCriteria();
searchCriteria.seteWiseTransactionId(badTransactionId);
final BindingResult result = context.mock(BindingResult.class);
final SessionStatus status = context.mock(SessionStatus.class);
context.checking(new Expectations() {{
allowing(result).hasErrors(); will(returnValue(false));
atLeast(1).of(model).addAttribute(with(any(String.class)), with(any(Object.class)));
oneOf(searchService).getAuthorizationFor(with(any(String.class)));
will(returnValue(transactionNotFound));
oneOf(result).addError(with(any(ObjectError.class)));
oneOf(notifications).transferTo(with(any(String.class)));
}});
String nextPage = controller.executeSearch(searchCriteria, result, model, status);
assertThat("Controller is not requesting the correct form",
target, equalTo(nextPage));
}
@Test
public void executeSearchWithTransactionFound() {
final String target = PaymentDetailController.PAYMENT_DETAIL_PAGE;
final String goodTransactionId = "100000010";
final PaymentDetail transactionFound = context.mock(PaymentDetail.class);
final SearchCriteria searchCriteria = new SearchCriteria();
searchCriteria.seteWiseTransactionId(goodTransactionId);
final BindingResult result = context.mock(BindingResult.class);
final SessionStatus status = context.mock(SessionStatus.class);
context.checking(new Expectations() {{
allowing(result).hasErrors(); will(returnValue(false));
atLeast(1).of(model).addAttribute(with(any(String.class)), with(any(Object.class)));
oneOf(searchService).getAuthorizationFor(with(any(String.class)));
will(returnValue(transactionFound));
oneOf(notifications).redirectTo(with(any(String.class)));
}});
String nextPage = controller.executeSearch(searchCriteria, result, model, status);
assertThat("Controller is not requesting the correct form",
nextPage, containsString(target));
}
}
I hope this might help.
This last solution is the one that worked for me. I had problem with Undefined and object object or always returning false then always returning true but this solution that works when checking and un-checking.
This code shows fields when clicked and hides fields when un-checked :
$("#new_blah").click(function(){
if ($(this).attr('checked')) {
$(this).removeAttr('checked');
var radioValue = $(this).prop('checked',false);
// alert("Your are a rb inside 1- " + radioValue);
// hide the fields is the radio button is no
$("#new_blah1").closest("tr").hide();
$("#new_blah2").closest("tr").hide();
}
else {
var radioValue = $(this).attr('checked', 'checked');
// alert("Your are a rb inside 2 - " + radioValue);
// show the fields when radio button is set to yes
$("#new_blah1").closest("tr").show();
$("#new_blah2").closest("tr").show();
}
There is a KeyValuePair built-in type. As a matter of fact, this is what the IDictionary is giving you access to when you iterate in it.
Also, this structure is hardly a tree, finding a more representative name might be a good exercise.
Although I am very late to this but after seeing some legitimate questions for those who wanted to use INSERT-SELECT
query with GROUP BY
clause, I came up with the work around for this.
Taking further the answer of Marcus Adams and accounting GROUP BY
in it, this is how I would solve the problem by using Subqueries in the FROM Clause
INSERT INTO lee(exp_id, created_by, location, animal, starttime, endtime, entct,
inact, inadur, inadist,
smlct, smldur, smldist,
larct, lardur, lardist,
emptyct, emptydur)
SELECT sb.id, uid, sb.location, sb.animal, sb.starttime, sb.endtime, sb.entct,
sb.inact, sb.inadur, sb.inadist,
sb.smlct, sb.smldur, sb.smldist,
sb.larct, sb.lardur, sb.lardist,
sb.emptyct, sb.emptydur
FROM
(SELECT id, uid, location, animal, starttime, endtime, entct,
inact, inadur, inadist,
smlct, smldur, smldist,
larct, lardur, lardist,
emptyct, emptydur
FROM tmp WHERE uid=x
GROUP BY location) as sb
ON DUPLICATE KEY UPDATE entct=sb.entct, inact=sb.inact, ...
I suffered from this issue too a lot, in my case Downloading missing NuGet was checked (but it is not restoring them) and i can not uninstall & re-install because i modified some of the installed packages ... so:
I just cleared the cached and rebuild and it worked. (Tools-Option-Nuget Package Manager - General)
also this link helps https://docs.nuget.org/consume/package-restore/migrating-to-automatic-package-restore.
I got stumped here a bit. Wanted to package some resource files into a wheel file and access them. Did the packaging using manifest file, but pip install was not installing it unless it was a sub directory. Hoping these sceen shots will help
+-- cnn_client
¦ +-- image_preprocessor.py
¦ +-- __init__.py
¦ +-- resources
¦ ¦ +-- mscoco_complete_label_map.pbtxt
¦ ¦ +-- retinanet_complete_label_map.pbtxt
¦ ¦ +-- retinanet_label_map.py
¦ +-- tf_client.py
MANIFEST.in
recursive-include cnn_client/resources *
Created a weel using standard setup.py . pip installed the wheel file. After installation checked if resources are installed. They are
ls /usr/local/lib/python2.7/dist-packages/cnn_client/resources
mscoco_complete_label_map.pbtxt
retinanet_complete_label_map.pbtxt
retinanet_label_map.py
In tfclient.py to access these files. from
templates_dir = os.path.join(os.path.dirname(__file__), 'resources')
file_path = os.path.join(templates_dir, \
'mscoco_complete_label_map.pbtxt')
s = open(file_path, 'r').read()
And it works.
function start() {_x000D_
document.getElementById("textBox1").scrollTop +=5;_x000D_
scrolldelay = setTimeout(function() {start();}, 40);_x000D_
}_x000D_
_x000D_
function stop(){_x000D_
clearTimeout(scrolldelay);_x000D_
}_x000D_
_x000D_
function reset(){_x000D_
var loc = document.getElementById("textBox1").scrollTop;_x000D_
document.getElementById("textBox1").scrollTop -= loc;_x000D_
clearTimeout(scrolldelay);_x000D_
}_x000D_
//adjust height of paragraph in css_x000D_
//element textbox in div_x000D_
//adjust speed at scrolltop and start
_x000D_
The problem is that you are trying to insert data into the database without using columns. Sql server gives you that error message.
error: insert into users values('1', '2','3')
- this works fine as long you only have 3 columns
if you have 4 columns but only want to insert into 3 of them
correct: insert into users (firstName,lastName,city) values ('Tom', 'Jones', 'Miami')
hope this helps
Here is an example of how you can use for_each for a map.
std::map<int, int> map;
map.insert(std::pair<int, int>(1, 2));
map.insert(std::pair<int, int>(2, 4));
map.insert(std::pair<int, int>(3, 6));
auto f = [](std::pair<int,int> it) {std::cout << it.first + it.second << std::endl; };
std::for_each(map.begin(), map.end(), f);
I also faced the similar problem. I googled but couldn't find the solution. So I tried on my own and here is my solution.
Open you solution file in notepad. Make 2 changes
Hope this helps u as well..........
The backslash operator is not reliable. Try pasting this function in your browser console:
function printString (){
const s = "someLongLineOfText\
ThatShouldNotBeBroken";
console.log(s);
}
and then run it. Because of the conventional (and correct) indentation within the function, two extra spaces will be included, resulting in someLongLineOfText ThatShouldNotBeBroken
.
Even using backticks will not help in this case. Always use the concatenation "+" operator to prevent this type of issue.
In addition to Jhonson's list, also check library's folders
In visual studio, select Tools > Options from the main menu. select Projects and Solutions > VC++ Directories. Select x64 from the Platform dropdown.
$(VCInstallDir)lib\AMD64;
$(VCInstallDir)atlmfc\lib\amd64;
$(WindowsSdkDir)lib\x64;
You'll have to set it to zero. Zero means the script can run forever. Add the following at the start of your script:
ini_set('max_execution_time', 0);
Refer to the PHP documentation of max_execution_time
Note that:
set_time_limit(0);
will have the same effect.
Late to the party, but another easy way of comparing NSDate objects is to convert them into primitive types which allows for easy use of '>' '<' '==' etc
eg.
if ([dateA timeIntervalSinceReferenceDate] > [dateB timeIntervalSinceReferenceDate]) {
//do stuff
}
timeIntervalSinceReferenceDate
converts the date into seconds since the reference date (1 January 2001, GMT). As timeIntervalSinceReferenceDate
returns a NSTimeInterval (which is a double typedef), we can use primitive comparators.
In case somebody prefers sed
and removing without wildcard expansion:
sed -e "s/^\(.*\)$/rm -f -- \'\1\'/" deletelist.txt | /bin/sh
Reminder: use absolute pathnames in the file or make sure you are in the right directory.
And for completeness the same with awk
:
awk '{printf "rm -f -- '\''%s'\''\n",$1}' deletelist.txt | /bin/sh
Wildcard expansion will work if the single quotes are remove, but this is dangerous in case the filename contains spaces. This would need to add quotes around the wildcards.
Like this?
public static void Test()
{
using (var image = Image.FromFile(@"c:\logo.png"))
using (var newImage = ScaleImage(image, 300, 400))
{
newImage.Save(@"c:\test.png", ImageFormat.Png);
}
}
public static Image ScaleImage(Image image, int maxWidth, int maxHeight)
{
var ratioX = (double)maxWidth / image.Width;
var ratioY = (double)maxHeight / image.Height;
var ratio = Math.Min(ratioX, ratioY);
var newWidth = (int)(image.Width * ratio);
var newHeight = (int)(image.Height * ratio);
var newImage = new Bitmap(newWidth, newHeight);
using (var graphics = Graphics.FromImage(newImage))
graphics.DrawImage(image, 0, 0, newWidth, newHeight);
return newImage;
}
Another quick and dirty answer is that you can just convert your list to an array using:
import numpy as np
arr = np.asarray(listname)
jQuery Version
JavaScript (modified from a script I found on someone's site - I just can't find the site again, so I can't give the person credit):
$(document).ready(function() {
$("#bookmarkme").click(function() {
if (window.sidebar) { // Mozilla Firefox Bookmark
window.sidebar.addPanel(location.href,document.title,"");
} else if(window.external) { // IE Favorite
window.external.AddFavorite(location.href,document.title); }
else if(window.opera && window.print) { // Opera Hotlist
this.title=document.title;
return true;
}
});
});
HTML:
<a id="bookmarkme" href="#" rel="sidebar" title="bookmark this page">Bookmark This Page</a>
IE will show an error if you don't run it off a server (it doesn't allow JavaScript bookmarks via JavaScript when viewing it as a file://...
).
Windows containers are not running on Linux and also You can't run Linux containers on Windows directly.
My suggestion would be to use Unit Tests.
In your application do the following switches in Program.cs
:
#if DEBUG
public class Program
#else
class Program
#endif
and the same for static Main(string[] args)
.
Or alternatively use Friend Assemblies by adding
[assembly: InternalsVisibleTo("TestAssembly")]
to your AssemblyInfo.cs
.
Then create a unit test project and a test that looks a bit like so:
[TestClass]
public class TestApplication
{
[TestMethod]
public void TestMyArgument()
{
using (var sw = new StringWriter())
{
Console.SetOut(sw); // this makes any Console.Writes etc go to sw
Program.Main(new[] { "argument" });
var result = sw.ToString();
Assert.AreEqual("expected", result);
}
}
}
This way you can, in an automated way, test multiple inputs of arguments without having to edit your code or change a menu setting every time you want to check something different.
I had the similar issue. The problem was in the passwords: the Keystore and private key used different passwords. (KeyStore explorer was used)
After creating Keystore with the same password as private key had the issue was resolved.
Try to apply the following settings shown below:
1) Give the necessary permission to the IIS_IUSRS
user on IIS Server
(Right click on the web site then Edit Permissions > Security).
2) If you use .NET Framework 4
, be sure that .NET Framework version is v4.0
on the Application Pool
that your web site uses.
3) Open Commanp Prompt as administrator
and run iisreset
command in order to restart IIS Server
.
Hope this helps...
"The nature of math" regarding prime power moduli is that they are one building block of a finite field. The other two building blocks are an addition and a multiplication operation. The special property of prime moduli is that they form a finite field with the "regular" addition and multiplication operations, just taken to the modulus. This means every multiplication maps to a different integer modulo the prime, so does every addition.
Prime moduli are advantageous because:
They however have a big downside, they require an integer division, which takes many (~ 15-40) cycles, even on a modern CPU. With around half the computation one can make sure the hash is mixed up very well. Two multiplications and xorshift operations will mix better than a prime moudulus. Then we can use whatever hash table size and hash reduction is fastest, giving 7 operations in total for power of 2 table sizes and around 9 operations for arbitrary sizes.
I recently looked at many of the fastest hash table implementations and most of them don't use prime moduli.
The distribution of the hash table indices are mainly dependent on the hash function in use. A prime modulus can't fix a bad hash function and a good hash function does not benefit from a prime modulus. There are cases where they can be advantageous however. It can mend a half-bad hash function for example.
Maybe also this:
function isNaNCustom(value){
return value.toString() === 'NaN' &&
typeof value !== 'string' &&
typeof value === 'number'
}
This works well for specific articles where the text is all wrapped in <p>
tags. Since the web is an ugly place, it's not always the case.
Often, websites will have text scattered all over, wrapped in different types of tags (e.g. maybe in a <span>
or a <div>
, or an <li>
).
To find all text nodes in the DOM, you can use soup.find_all(text=True)
.
This is going to return some undesired text, like the contents of <script>
and <style>
tags. You'll need to filter out the text contents of elements you don't want.
blacklist = [
'style',
'script',
# other elements,
]
text_elements = [t for t in soup.find_all(text=True) if t.parent.name not in blacklist]
If you are working with a known set of tags, you can tag the opposite approach:
whitelist = [
'p'
]
text_elements = [t for t in soup.find_all(text=True) if t.parent.name in whitelist]
To retain "pretty-print" use
from IPython.display import HTML
HTML(df.to_html(index=False))
There is a JDK socket tutorial here, which covers both the server and client end. That looks exactly like what you want.
(from that tutorial) This sets up to read from an echo server:
echoSocket = new Socket("taranis", 7);
out = new PrintWriter(echoSocket.getOutputStream(), true);
in = new BufferedReader(new InputStreamReader(
echoSocket.getInputStream()));
taking a stream of bytes and converts to strings via the reader and using a default encoding (not advisable, normally).
Error handling and closing sockets/streams omitted from the above, but check the tutorial.
The max length of a varchar is
65535
divided by the max byte length of a character in the character set the column is set to (e.g. utf8=3 bytes, ucs2=2, latin1=1).
minus 2 bytes to store the length
minus the length of all the other columns
minus 1 byte for every 8 columns that are nullable. If your column is null/not null this gets stored as one bit in a byte/bytes called the null mask, 1 bit per column that is nullable.
This error happens when you are also missing cmd.CommandType = System.Data.CommandType.StoredProcedure;
If you are sending anything other than simple strings I would recommend using a POST with an appropriate request body, or passing the entire list as an appropriately encoded JSON string. However, with simple strings you just need to append each value to the request URL appropriately and Jersey will deserialize it for you. So given the following example endpoint:
@Path("/service/echo") public class MyServiceImpl {
public MyServiceImpl() {
super();
}
@GET
@Path("/withlist")
@Produces(MediaType.TEXT_PLAIN)
public Response echoInputList(@QueryParam("list") final List<String> inputList) {
return Response.ok(inputList).build();
}
}
Your client would send a request corresponding to:
GET http://example.com/services/echo?list=Hello&list=Stay&list=Goodbye
Which would result in inputList
being deserialized to contain the values 'Hello', 'Stay' and 'Goodbye'
You need to put it in the join
clause, not the where
:
SELECT *
FROM categories
LEFT JOIN user_category_subscriptions ON
user_category_subscriptions.category_id = categories.category_id
and user_category_subscriptions.user_id =1
See, with an inner join
, putting a clause in the join
or the where
is equivalent. However, with an outer join
, they are vastly different.
As a join
condition, you specify the rowset that you will be joining to the table. This means that it evaluates user_id = 1
first, and takes the subset of user_category_subscriptions
with a user_id
of 1
to join to all of the rows in categories
. This will give you all of the rows in categories
, while only the categories
that this particular user has subscribed to will have any information in the user_category_subscriptions
columns. Of course, all other categories
will be populated with null
in the user_category_subscriptions
columns.
Conversely, a where
clause does the join, and then reduces the rowset. So, this does all of the joins and then eliminates all rows where user_id
doesn't equal 1
. You're left with an inefficient way to get an inner join
.
Hopefully this helps!
I've had to do something similar on a CI system recently. My options were to do it entirely in bash (yikes) or use a language like python which would have made programming the logic much simpler.
My workaround was to do the programming in python and write the results to a file. Then use bash to export the results.
For example:
# do calculations in python
with open("./my_export", "w") as f:
f.write(your_results)
# then in bash
export MY_DATA="$(cat ./my_export)"
rm ./my_export # if no longer needed
Well, you can't. Internal classes can't be visible outside of their assembly, so no explicit way to access it directly -AFAIK of course. The only way is to use runtime late-binding via reflection, then you can invoke methods and properties from the internal class indirectly.
I tried all above steps to resolve the problem but nothing worked. I had installed both JDK and JRE.
In my case, one jar file was being opened by double click while other was not being opened. I examined those files and the probable reason was that which was being opened, was created using JAVA SE 6 and the one not being opened was created using JAVA SE 7. Although, the problematic jar file was being run via command prompt (java -jar myfile.jar).
I tried Right Click -> Properties -> Change to javaw.exe with both in JDK\bin directory and JRE\bin directory.
I was finally able to fix the problem by changing javaw.exe path (from JDK\bin to JRE\bin) in registry editor.
Go to HKEY_CLASSES_ROOT\jarfile\shell\open\command, the value was,
"C:\Program Files\Java\jdk-11.0.1\bin\javaw.exe" -jar "%1" %*
I changed it to,
"C:\Program Files\Java\jre1.8.0_191\bin\javaw.exe" -jar "%1" %*
and it worked. Now the jar file can be opened by double click.
public boolean FileExists(String fname) {
File file = getBaseContext().getFileStreamPath(fname);
return file.exists();
}
JavaScript developers tend to refer to the above data-structure as either an object or hash instead of a Dictionary.
Your syntax above is wrong as you are initializing the users
object as null. I presume this is a typo, as the code should read:
// Initialize users as a new hash.
var users = {};
users["182982"] = "...";
To retrieve all the values from a hash, you need to iterate over it using a for loop:
function getValues (hash) {
var values = [];
for (var key in hash) {
// Ensure that the `key` is actually a member of the hash and not
// a member of the `prototype`.
// see: http://javascript.crockford.com/code.html#for%20statement
if (hash.hasOwnProperty(key)) {
values.push(key);
}
}
return values;
};
If you plan on doing a lot of work with data-structures in JavaScript then the underscore.js library is definitely worth a look. Underscore comes with a values
method which will perform the above task for you:
var values = _.values(users);
I don't use Angular myself, but I'm pretty sure there will be a convenience method build in for iterating over a hash's values (ah, there we go, Artem Andreev provides the answer above :))
We've solved this, although we didn't think having the addListener outside of the for would make any difference, it seems to. Here's the answer:
Create a new function with your information for the infoWindow in it:
function addInfoWindow(marker, message) {
var infoWindow = new google.maps.InfoWindow({
content: message
});
google.maps.event.addListener(marker, 'click', function () {
infoWindow.open(map, marker);
});
}
Then call the function with the array ID and the marker you want to create:
addInfoWindow(marker, hotels[i][3]);
If you want to update the highlighted day to a different day based on some server time, you can override the Date Picker code to allow for a new custom option named localToday
or whatever you'd like to name it.
A small tweak to the selected answer in jQuery UI DatePicker change highlighted "today" date
// Get users 'today' date
var localToday = new Date();
localToday.setDate(tomorrow.getDate()+1); // tomorrow
// Pass the today date to datepicker
$( "#datepicker" ).datepicker({
showButtonPanel: true,
localToday: localToday // This option determines the highlighted today date
});
I've overridden 2 datepicker methods to conditionally use a new setting for the "today" date instead of a new Date()
. The new setting is called localToday
.
Override $.datepicker._gotoToday
and $.datepicker._generateHTML
like this:
$.datepicker._gotoToday = function(id) {
/* ... */
var date = inst.settings.localToday || new Date()
/* ... */
}
$.datepicker._generateHTML = function(inst) {
/* ... */
tempDate = inst.settings.localToday || new Date()
/* ... */
}
Here's a demo which shows the full code and usage: http://jsfiddle.net/NAzz7/5/
Try this :
<script src="http://code.jquery.com/jquery-latest.min.js"></script>
<script type="text/javascript">
$(document).ready(function () {
var simpleText = "hello_world";
var finalSplitText = simpleText.split("_");
var splitText = finalSplitText[0];
$("#target").text(splitText);
});
</script>
<body>
<a id="target" href = test.html></a>
</body>
</html>
You need to adjust three (or four) properties:
fetch.message.max.bytes
- this will determine the largest size of a message that can be fetched by the consumer.replica.fetch.max.bytes
- this will allow for the replicas in the brokers to send messages within the cluster and make sure the messages are replicated correctly. If this is too small, then the message will never be replicated, and therefore, the consumer will never see the message because the message will never be committed (fully replicated).message.max.bytes
- this is the largest size of the message that can be received by the broker from a producer.max.message.bytes
- this is the largest size of the message the broker will allow to be appended to the topic. This size is validated pre-compression. (Defaults to broker's message.max.bytes
.)I found out the hard way about number 2 - you don't get ANY exceptions, messages, or warnings from Kafka, so be sure to consider this when you are sending large messages.
If you are still recieving the InvalidKeyException when running my AES encryption program with 256 bit keys, but not with 128 bit keys, it is because you have not installed the new policy JAR files correctly, and has nothing to do with BouncyCastle (which is also restrained by those policy files). Try uninstalling, then re-installing java and then replaceing the old jar's with the new unlimited strength ones. Other than that, I'm out of ideas, best of luck.
You can see the policy files themselves if you open up the lib/security/local_policy.jar and US_export_policy.jar files in winzip and look at the conatined *.policy files in notepad and make sure they look like this:
default_local.policy:
// Country-specific policy file for countries with no limits on crypto strength.
grant {
// There is no restriction to any algorithms.
permission javax.crypto.CryptoAllPermission;
};
default_US_export.policy:
// Manufacturing policy file.
grant {
// There is no restriction to any algorithms.
permission javax.crypto.CryptoAllPermission;
};
There are two Things you can do
use
int noOfColumns = sh.getRow(0).getPhysicalNumberOfCells();
or
int noOfColumns = sh.getRow(0).getLastCellNum();
There is a fine difference between them
As long as you override equals()
on each key and value contained in the map, then m1.equals(m2)
should be reliable to check for maps equality.
The same result can be obtained also by comparing toString()
of each map as you suggested, but using equals()
is a more intuitive approach.
May not be your specific situation, but if you store arrays in the map, may be a little tricky, because they must be compared value by value, or using Arrays.equals()
. More details about this see here.
as simple as that: echo '<a href="'.$link_address.'">Link</a>';
If I may add one more solution: you can simply cancel the clipboard with this command:
Application.CutCopyMode = False
On Mac:
Per-user config file: ~/.npmrc
Wrapping the model property around parens worked for me. You still get the same issue with Visual Studio complaining about the semi-colon, but it works.
var closedStatusId = @(Model.ClosedStatusId);
use this code it's works with me :
Dialog dialog = new Dialog(getActivity(),android.R.style.Theme_Translucent_NoTitleBar);
dialog.show();
fetch
/merge
vs. pull
People often advise you to separate "fetching" from "merging". They say instead of this:
git pull remoteR branchB
do this:
git fetch remoteR
git merge remoteR branchB
What they don't mention is that such a fetch command will actually fetch all branches from the remote repo, which is not what that pull command does. If you have thousands of branches in the remote repo, but you do not want to see all of them, you can run this obscure command:
git fetch remoteR refs/heads/branchB:refs/remotes/remoteR/branchB
git branch -a # to verify
git branch -t branchB remoteR/branchB
Of course, that's ridiculously hard to remember, so if you really want to avoid fetching all branches, it is better to alter your .git/config
as described in ProGit.
The best explanation of all this is in Chapter 9-5 of ProGit, Git Internals - The Refspec (or via github). That is amazingly hard to find via Google.
First, we need to clear up some terminology. For remote-branch-tracking, there are typically 3 different branches to be aware of:
refs/heads/branchB
inside the other reporefs/remotes/remoteR/branchB
in your reporefs/heads/branchB
inside your repoRemote-tracking branches (in refs/remotes
) are read-only. You do not modify those directly. You modify your own branch, and then you push to the corresponding branch at the remote repo. The result is not reflected in your refs/remotes
until after an appropriate pull or fetch. That distinction was difficult for me to understand from the git man-pages, mainly because the local branch (refs/heads/branchB
) is said to "track" the remote-tracking branch when .git/config
defines branch.branchB.remote = remoteR
.
Think of 'refs' as C++ pointers. Physically, they are files containing SHA-digests, but basically they are just pointers into the commit tree. git fetch
will add many nodes to your commit-tree, but how git decides what pointers to move is a bit complicated.
As mentioned in another answer, neither
git pull remoteR branchB
nor
git fetch remoteR branchB
would move refs/remotes/branches/branchB
, and the latter certainly cannot move refs/heads/branchB
. However, both move FETCH_HEAD
. (You can cat
any of these files inside .git/
to see when they change.) And git merge
will refer to FETCH_HEAD
, while setting MERGE_ORIG
, etc.
The best way to do it is:
return this.StatusCode(StatusCodes.Status418ImATeapot, "Error message");
'StatusCodes' has every kind of return status and you can see all of them in this link https://httpstatuses.com/
Once you choose your StatusCode, return it with a message.
Why not do two queries:
select top(M+N-1) * from table into temp tmp_final with no log;
select top(N-1) * from tmp_final order by id desc;
HOW TO FORCE UNLOCK for locked tables in MySQL:
Breaking locks like this may cause atomicity in the database to not be enforced on the sql statements that caused the lock.
This is hackish, and the proper solution is to fix your application that caused the locks. However, when dollars are on the line, a swift kick will get things moving again.
1) Enter MySQL
mysql -u your_user -p
2) Let's see the list of locked tables
mysql> show open tables where in_use>0;
3) Let's see the list of the current processes, one of them is locking your table(s)
mysql> show processlist;
4) Kill one of these processes
mysql> kill <put_process_id_here>;
IntelliJ IDEA 2018.3.6
Using macOS Mojave Version 10.14.4 and pressing ?F12(Alt+F12) will open Sound preferences.
A solution without changing the current keymap is to use the command above with the key fn.
fn ? F12(fn+Alt+F12) will open the Terminal. And you can use ShiftEsc to close it.
So as far as AJAX is concerned...
Pressing back while using most web-apps that use AJAX to navigate specific parts of a page is a HUGE issue. I don't accept that 'having to disable the button means you're doing something wrong' and in fact developers in different facets have long run into this problem. Here's my solution:
window.onload = function () {
if (typeof history.pushState === "function") {
history.pushState("jibberish", null, null);
window.onpopstate = function () {
history.pushState('newjibberish', null, null);
// Handle the back (or forward) buttons here
// Will NOT handle refresh, use onbeforeunload for this.
};
}
else {
var ignoreHashChange = true;
window.onhashchange = function () {
if (!ignoreHashChange) {
ignoreHashChange = true;
window.location.hash = Math.random();
// Detect and redirect change here
// Works in older FF and IE9
// * it does mess with your hash symbol (anchor?) pound sign
// delimiter on the end of the URL
}
else {
ignoreHashChange = false;
}
};
}
}
As far as Ive been able to tell this works across chrome, firefox, haven't tested IE yet.
You can select the rows from the table you want to export in the MySQL Workbench SQL Editor. You will find an Export button in the resultset that will allow you to export the records to a CSV file, as shown in the following image:
Please also keep in mind that by default MySQL Workbench limits the size of the resultset to 1000 records. You can easily change that in the Preferences dialog:
Hope this helps.
More information needed for a definitive answer, but this code
myNodeList = (ArrayList<MyNode>)this.getVertices();
will only work if this.getVertices()
returns a (subtype of) List<MyNode>
. If it is a different collection (like your Exception seems to indicate), you want to use
new ArrayList<MyNode>(this.getVertices())
This will work as long as a Collection type is returned by getVertices.
Provide your package name separately, it requires a String[]
for package names.
Instead of this:
@ComponentScan("com.my.package.first,com.my.package.second")
Use this:
@ComponentScan({"com.my.package.first","com.my.package.second"})
If you want to get the number of lines from a certain author, try the following code:
git ls-files "*.java" | xargs -I{} git blame {} | grep ${your_name} | wc -l
In most cases, you won't see an actual difference between the two approaches, but it's easy to construct a worst case scenario like this one:
public class Main
{
public static void main(String[] args)
{
long now = System.currentTimeMillis();
slow();
System.out.println("slow elapsed " + (System.currentTimeMillis() - now) + " ms");
now = System.currentTimeMillis();
fast();
System.out.println("fast elapsed " + (System.currentTimeMillis() - now) + " ms");
}
private static void fast()
{
StringBuilder s = new StringBuilder();
for(int i=0;i<100000;i++)
s.append("*");
}
private static void slow()
{
String s = "";
for(int i=0;i<100000;i++)
s+="*";
}
}
The output is:
slow elapsed 11741 ms
fast elapsed 7 ms
The problem is that to += append to a string reconstructs a new string, so it costs something linear to the length of your strings (sum of both).
So - to your question:
The second approach would be faster, but it's less readable and harder to maintain. As I said, in your specific case you would probably not see the difference.
The technique in this post worked for me
1) Click the "Export" tab for the database
2) Click the "Custom" radio button
3) Go the section titled "Format-specific options" and change the dropdown for "Database system or older MySQL server to maximize output compatibility with:" from NONE to MYSQL40.
4) Scroll to the bottom and click "GO".
I'm not certain if doing this causes any data loss, however in the one time I've tried it I did not notice any. Neither did anyone who responded in the forums linked to above.
Edit 8/12/16 - I believe exporting a database in this way causes me to lose data saved in Black Studio TinyMCE Visual Editor widgets, though I haven't ran multiple tests to confirm.
df.to_numpy()
is better than df.values
, here's why.*It's time to deprecate your usage of values
and as_matrix()
.
pandas v0.24.0
introduced two new methods for obtaining NumPy arrays from pandas objects:
to_numpy()
, which is defined on Index
, Series
, and DataFrame
objects, andarray
, which is defined on Index
and Series
objects only.If you visit the v0.24 docs for .values
, you will see a big red warning that says:
Warning: We recommend using
DataFrame.to_numpy()
instead.
See this section of the v0.24.0 release notes, and this answer for more information.
* - to_numpy()
is my recommended method for any production code that needs to run reliably for many versions into the future. However if you're just making a scratchpad in jupyter or the terminal, using .values
to save a few milliseconds of typing is a permissable exception. You can always add the fit n finish later.
to_numpy()
In the spirit of better consistency throughout the API, a new method to_numpy
has been introduced to extract the underlying NumPy array from DataFrames.
# Setup
df = pd.DataFrame(data={'A': [1, 2, 3], 'B': [4, 5, 6], 'C': [7, 8, 9]},
index=['a', 'b', 'c'])
# Convert the entire DataFrame
df.to_numpy()
# array([[1, 4, 7],
# [2, 5, 8],
# [3, 6, 9]])
# Convert specific columns
df[['A', 'C']].to_numpy()
# array([[1, 7],
# [2, 8],
# [3, 9]])
As mentioned above, this method is also defined on Index
and Series
objects (see here).
df.index.to_numpy()
# array(['a', 'b', 'c'], dtype=object)
df['A'].to_numpy()
# array([1, 2, 3])
By default, a view is returned, so any modifications made will affect the original.
v = df.to_numpy()
v[0, 0] = -1
df
A B C
a -1 4 7
b 2 5 8
c 3 6 9
If you need a copy instead, use to_numpy(copy=True)
.
If you're using pandas 1.x, chances are you'll be dealing with extension types a lot more. You'll have to be a little more careful that these extension types are correctly converted.
a = pd.array([1, 2, None], dtype="Int64")
a
<IntegerArray>
[1, 2, <NA>]
Length: 3, dtype: Int64
# Wrong
a.to_numpy()
# array([1, 2, <NA>], dtype=object) # yuck, objects
# Correct
a.to_numpy(dtype='float', na_value=np.nan)
# array([ 1., 2., nan])
# Also correct
a.to_numpy(dtype='int', na_value=-1)
# array([ 1, 2, -1])
This is called out in the docs.
dtypes
in the result...As shown in another answer, DataFrame.to_records
is a good way to do this.
df.to_records()
# rec.array([('a', 1, 4, 7), ('b', 2, 5, 8), ('c', 3, 6, 9)],
# dtype=[('index', 'O'), ('A', '<i8'), ('B', '<i8'), ('C', '<i8')])
This cannot be done with to_numpy
, unfortunately. However, as an alternative, you can use np.rec.fromrecords
:
v = df.reset_index()
np.rec.fromrecords(v, names=v.columns.tolist())
# rec.array([('a', 1, 4, 7), ('b', 2, 5, 8), ('c', 3, 6, 9)],
# dtype=[('index', '<U1'), ('A', '<i8'), ('B', '<i8'), ('C', '<i8')])
Performance wise, it's nearly the same (actually, using rec.fromrecords
is a bit faster).
df2 = pd.concat([df] * 10000)
%timeit df2.to_records()
%%timeit
v = df2.reset_index()
np.rec.fromrecords(v, names=v.columns.tolist())
12.9 ms ± 511 µs per loop (mean ± std. dev. of 7 runs, 100 loops each)
9.56 ms ± 291 µs per loop (mean ± std. dev. of 7 runs, 100 loops each)
to_numpy()
(in addition to array
) was added as a result of discussions under two GitHub issues GH19954 and GH23623.
Specifically, the docs mention the rationale:
[...] with
.values
it was unclear whether the returned value would be the actual array, some transformation of it, or one of pandas custom arrays (likeCategorical
). For example, withPeriodIndex
,.values
generates a newndarray
of period objects each time. [...]
to_numpy
aims to improve the consistency of the API, which is a major step in the right direction. .values
will not be deprecated in the current version, but I expect this may happen at some point in the future, so I would urge users to migrate towards the newer API, as soon as you can.
DataFrame.values
has inconsistent behaviour, as already noted.
DataFrame.get_values()
is simply a wrapper around DataFrame.values
, so everything said above applies.
DataFrame.as_matrix()
is deprecated now, do NOT use!
Using cumsum
should be sufficient and efficient. Assuming you have a vector x and you want a running sum of n numbers
cx <- c(0,cumsum(x))
rsum <- (cx[(n+1):length(cx)] - cx[1:(length(cx) - n)]) / n
As pointed out in the comments by @mzuther, this assumes that there are no NAs in the data. to deal with those would require dividing each window by the number of non-NA values. Here's one way of doing that, incorporating the comment from @Ricardo Cruz:
cx <- c(0, cumsum(ifelse(is.na(x), 0, x)))
cn <- c(0, cumsum(ifelse(is.na(x), 0, 1)))
rx <- cx[(n+1):length(cx)] - cx[1:(length(cx) - n)]
rn <- cn[(n+1):length(cx)] - cn[1:(length(cx) - n)]
rsum <- rx / rn
This still has the issue that if all the values in the window are NAs then there will be a division by zero error.
This is an extension function I wrote in Kotlin to use with the RecyclerView
(based on @Paul Woitaschek answer):
fun RecyclerView.smoothSnapToPosition(position: Int, snapMode: Int = LinearSmoothScroller.SNAP_TO_START) {
val smoothScroller = object : LinearSmoothScroller(this.context) {
override fun getVerticalSnapPreference(): Int = snapMode
override fun getHorizontalSnapPreference(): Int = snapMode
}
smoothScroller.targetPosition = position
layoutManager?.startSmoothScroll(smoothScroller)
}
Use it like this:
myRecyclerView.smoothSnapToPosition(itemPosition)
ESP
is the current stack pointer, which will change any time a word or address is pushed or popped onto/off off the stack. EBP
is a more convenient way for the compiler to keep track of a function's parameters and local variables than using the ESP
directly.
Generally (and this may vary from compiler to compiler), all of the arguments to a function being called are pushed onto the stack by the calling function (usually in the reverse order that they're declared in the function prototype, but this varies). Then the function is called, which pushes the return address (EIP
) onto the stack.
Upon entry to the function, the old EBP
value is pushed onto the stack and EBP
is set to the value of ESP
. Then the ESP
is decremented (because the stack grows downward in memory) to allocate space for the function's local variables and temporaries. From that point on, during the execution of the function, the arguments to the function are located on the stack at positive offsets from EBP
(because they were pushed prior to the function call), and the local variables are located at negative offsets from EBP
(because they were allocated on the stack after the function entry). That's why the EBP
is called the Frame Pointer, because it points to the center of the function call frame.
Upon exit, all the function has to do is set ESP
to the value of EBP
(which deallocates the local variables from the stack, and exposes the entry EBP
on the top of the stack), then pop the old EBP
value from the stack, and then the function returns (popping the return address into EIP
).
Upon returning back to the calling function, it can then increment ESP
in order to remove the function arguments it pushed onto the stack just prior to calling the other function. At this point, the stack is back in the same state it was in prior to invoking the called function.
I am just adding example here because I think examples make it easier to understand.
In printf() they behave identically so you can use any either %d or %i. But they behave differently in scanf().
For example:
int main()
{
int num,num2;
scanf("%d%i",&num,&num2);// reading num using %d and num2 using %i
printf("%d\t%d",num,num2);
return 0;
}
Output:
You can see the different results for identical inputs.
num
:
We are reading num
using %d
so when we enter 010
it ignores the first 0
and treats it as decimal 10
.
num2
:
We are reading num2
using %i
.
That means it will treat decimals, octals, and hexadecimals differently.
When it give num2
010
it sees the leading 0
and parses it as octal.
When we print it using %d
it prints the decimal equivalent of octal 010
which is 8
.
print('\007')
Plays the bell sound on Linux. Plays the error sound on Windows 10.
Look at Morris in-order tree traversal which uses constant space and runs in O(n) (up to 3 times longer than your normal recursive traversal - but you save hugely on space). If the nodes are modifiable, than you could save the calculated result of the sub-tree as you backtrack to its root (by writing directly to the Node).
Try this one:
function show_sub(cat) {
var parent = cat,
sub = parent.getElementsByClassName('sub');
if (sub[0].style.display == 'inline'){
sub[0].style.display = 'none';
}
else {
sub[0].style.display = 'inline';
}
}
document.getElementById('cat').onclick = function(){
show_sub(this);
};?
and use this for IE6 & 7
if (typeof document.getElementsByClassName!='function') {
document.getElementsByClassName = function() {
var elms = document.getElementsByTagName('*');
var ei = new Array();
for (i=0;i<elms.length;i++) {
if (elms[i].getAttribute('class')) {
ecl = elms[i].getAttribute('class').split(' ');
for (j=0;j<ecl.length;j++) {
if (ecl[j].toLowerCase() == arguments[0].toLowerCase()) {
ei.push(elms[i]);
}
}
} else if (elms[i].className) {
ecl = elms[i].className.split(' ');
for (j=0;j<ecl.length;j++) {
if (ecl[j].toLowerCase() == arguments[0].toLowerCase()) {
ei.push(elms[i]);
}
}
}
}
return ei;
}
}
If you need to order your code into namespaces, just use the keyword namespace
:
file1.php
namespace foo\bar;
In file2.php
$obj = new \foo\bar\myObj();
You can also use use
. If in file2 you put
use foo\bar as mypath;
you need to use mypath
instead of bar
anywhere in the file:
$obj = new mypath\myObj();
Using use foo\bar;
is equal to use foo\bar as bar;
.
I like a reverse order for loop such as:
int size = list.size();
for (int i = size - 1; i >= 0; i--) {
if(remove){
list.remove(i);
}
}
because it doesn't require learning any new data structures or classes.
The best source I have for this kind of question is this page: http://www.quirksmode.org/js/keys.html
What they say is that the key codes are odd on Safari, and consistent everywhere else (except that there's no keypress event on IE, but I believe keydown works).
Basic difference between various options of git reset command are as below.
The interface however defines the size() method, which returns an int.
Returns the number of elements in this list. If this list contains more than Integer.MAX_VALUE elements, returns Integer.MAX_VALUE.
So, no limit, but after you reach Integer.MAX_VALUE, the behaviour of the list changes a bit
ArrayList (which is tagged) is backed by an array, and is limited to the size of the array - i.e. Integer.MAX_VALUE
public class MyMap {
public static void main(String[] args) {
Map<String, String> map1 = new HashMap<String, String>();
map1.put("key1", "value1");
map1.put("key2", "value2");
map1.put("key3", "value3");
map1.put(null, null);
Map<String, String> map2 = new HashMap<String, String>();
map2.put("key4", "value4");
map2.put("key5", "value5");
map2.put("key6", "value6");
map2.put("key3", "replaced-value-of-key3-in-map2");
// used only if map1 can be changes/updates with the same keys present in map2.
map1.putAll(map2);
// use below if you are not supposed to modify the map1.
for (Map.Entry e : map2.entrySet())
if (!map1.containsKey(e.getKey()))
map1.put(e.getKey().toString(), e.getValue().toString());
System.out.println(map1);
}}
In fact, xargs
can run commands in parallel for you. There is a special -P max_procs
command-line option for that. See man xargs
.
It used to be a required part of a package (old, pre-3.3 "regular package", not newer 3.3+ "namespace package").
Python defines two types of packages, regular packages and namespace packages. Regular packages are traditional packages as they existed in Python 3.2 and earlier. A regular package is typically implemented as a directory containing an
__init__.py
file. When a regular package is imported, this__init__.py
file is implicitly executed, and the objects it defines are bound to names in the package’s namespace. The__init__.py
file can contain the same Python code that any other module can contain, and Python will add some additional attributes to the module when it is imported.
But just click the link, it contains an example, more information, and an explanation of namespace packages, the kind of packages without __init__.py
.
It is very simple, in order to deactivate your virtual env
conda deactivate
source deactivate
React hook - useRef
const MyComponent = ({myRef}) => {
const handleClick = () => alert('hello world')
myRef.current.handleClick = handleClick
return (<button onClick={handleClick}>Original Button</button>)
}
MyComponent.defaultProps = {
myRef: {current: {}}
}
const MyParentComponent = () => {
const myRef = React.useRef({})
return (
<>
<MyComponent
myRef={myRef}
/>
<button onClick={myRef.current.handleClick}>
Additional Button
</button>
</>
)
}
Good Luck...
code bellow, get from, goes
Controller:
int DefaultId = 1;
ViewBag.Person = db.XXXX
.ToList()
.Select(x => new SelectListItem {
Value = x.Id.ToString(),
Text = x.Name,
Selected = (x.Id == DefaultId)
});
View:
@Html.DropDownList("Person")
Note: ViewBag.Person and @Html.DropDownList("Person") name should be as in view model
IF YOU ARE USING NGINX :
cd /etc/php/<PHP_VERSION>/fpm
example => cd /etc/php/7.2/fpm
nano php.ini
post_max_size = 1024M
upload_max_filesize = 1024M
max_execution_time = 3600
max_input_time = 3600
memory_limit = 1024M
after saving php.ini file , restart fpm using :
systemctl restart php<PHP_VERSION>-fpm
example => systemctl restart php7.2-fpm
Binding events from html is NOT recommended. This is recommended way:
document.getElementById('btn').addEventListener('click', function(){
pay();
cls();
});
If you cannot find the .exe file, rebuild your solution and in your "Output" from Visual Studio the path to the file will be shown.
EDIT: Reference to an updated solution by LightMan
See LightMan's solution. Until now I was using:
input.action = { [weak self] value in
guard let this = self else { return }
this.someCall(value) // 'this' isn't nil
}
Or:
input.action = { [weak self] value in
self?.someCall(value) // call is done if self isn't nil
}
Usually you don't need to specify the parameter type if it's inferred.
You can omit the parameter altogether if there is none or if you refer to it as $0
in the closure:
input.action = { [weak self] in
self?.someCall($0) // call is done if self isn't nil
}
Just for completeness; if you're passing the closure to a function and the parameter is not @escaping
, you don't need a weak self
:
[1,2,3,4,5].forEach { self.someCall($0) }
I use JavaScript and CSS to accomplish this. The JS function needs to be called once on init and on window resize. Just tested in Chrome.
HTML:
<video width="1920" height="1080" controls>
<source src="./assets/video.mp4" type="video/mp4">
Your browser does not support the video tag.
</video>
JavaScript:
function scaleVideo() {
var vid = document.getElementsByTagName('video')[0];
var w = window.innerWidth;
var h = window.innerHeight;
if (w/16 >= h/9) {
vid.setAttribute('width', w);
vid.setAttribute('height', 'auto');
} else {
vid.setAttribute('width', 'auto');
vid.setAttribute('height', h);
}
}
CSS:
video {
position:absolute;
left:50%;
top:50%;
-webkit-transform:translate(-50%,-50%);
transform:translate(-50%,-50%);
}
You cannot.
According to the XML Schema specification, a boolean is true
or false
. True
is not valid:
3.2.2.1 Lexical representation An instance of a datatype that is defined as ·boolean· can have the following legal literals {true, false, 1, 0}. 3.2.2.2 Canonical representation The canonical representation for boolean is the set of literals {true, false}.
If the tool you are using truly validates against the XML Schema standard, then you cannot convince it to accept True for a boolean.
I had a similar problem when running my solution from VS2012:
Unable to launch the IIS Express Web server.
The start URL specified is not valid. https://localhost:44301/
I had the incorrect project selected as Startup Project. I made the Cloud project the Startup (right click on project -> Set as Startup Project) and everything started working fine.
AskTom is probably the single most helpful resource on best practices on Oracle DBs. (I usually just type "asktom" as the first word of a google query on a particular topic)
I don't think it's really appropriate to speak of design patterns with relational databases. Relational databases are already the application of a "design pattern" to a problem (the problem being "how to represent, store and work with data while maintaining its integrity", and the design being the relational model). Other approches (generally considered obsolete) are the Navigational and Hierarchical models (and I'm nure many others exist).
Having said that, you might consider "Data Warehousing" as a somewhat separate "pattern" or approach in database design. In particular, you might be interested in reading about the Star schema.
Create a Java Model using Axis wsdl2java (which can take in .xsd files).
Use a database generation tool for Java that takes in a Java Model. Surely something like Hibernate can do this? I wrote my own tool (takes a couple of days, also generates CRUD code in Java too) to save myself time at work, maybe this would be a nice personal project?
Or just do it manually so that you can check everything is correct and good! Database tools are good enough now that you can zip through creating tables for a model without too many problems.
The possible reason is the context of the alert dialog. You may be finished that activity so its trying to open in that context but which is already closed. Try changing the context of that dialog to you first activity beacause it won't be finished till the end.
e.g
rather than this.
AlertDialog alertDialog = new AlertDialog.Builder(this).create();
try to use
AlertDialog alertDialog = new AlertDialog.Builder(FirstActivity.getInstance()).create();
You have add this code:
$mail->SMTPOptions = array(
'ssl' => array(
'verify_peer' => false,
'verify_peer_name' => false,
'allow_self_signed' => true
)
);
And Enabling Allow less secure apps: "will usually solve the problem for PHPMailer, and it does not really make your app significantly less secure. Reportedly, changing this setting may take an hour or more to take effect, so don't expect an immediate fix"
This work for me!
It was probably discussed, but as of CSS3 there is nothing like what you need (see also "Is there a CSS selector for elements containing certain text?"). You will have to use additional markup, like this:
<li><span class="foo">some text</span></li>
<li>some other text</li>
Then refer to it the usual way:
li > span.foo {...}
It's called String#start_with?
, not String#startswith
: In Ruby, the names of boolean-ish methods end with ?
and the words in method names are separated with an _
. Not sure where the s
went, personally, I'd prefer String#starts_with?
over the actual String#start_with?
There are two ways to go about this. You can either use the IDE to generate a WSDL, or you can do it via the command line.
1. To create it via the IDE:
In the solution explorer pane, right click on the project that you would like to add the Service to:
Then, you can enter the path to your service WSDL and hit go:
2. To create it via the command line:
Open a VS 2010 Command Prompt (Programs -> Visual Studio 2010 -> Visual Studio Tools)
Then execute:
WSDL /verbose C:\path\to\wsdl
WSDL.exe will then output a .cs file for your consumption.
If you have other dependencies that you received with the file, such as xsd's, add those to the argument list:
WSDL /verbose C:\path\to\wsdl C:\path\to\some\xsd C:\path\to\some\xsd
If you need VB output, use /language:VB
in addition to the /verbose
.
A pure JS that also works on IE (from @Manfred comment)
var evt = window.document.createEvent('UIEvents');
evt.initUIEvent('resize', true, false, window, 0);
window.dispatchEvent(evt);
Or for angular:
$timeout(function() {
var evt = $window.document.createEvent('UIEvents');
evt.initUIEvent('resize', true, false, $window, 0);
$window.dispatchEvent(evt);
});
I had a similar problem with programmatically setting layout_gravity on buttons in a GridLayout.
The trick was to set gravity on the button layoutParams AFTER the button was added to a parent (GridLayout), otherwise the gravity would be ignored.
grid.addView(button)
((GridLayout.LayoutParams)button.getLayoutParams()).setGravity(int)
Implicit Wait
An implicit wait is to tell WebDriver to poll the DOM for a certain amount of time when trying to find an element or elements if they are not immediately available. The default setting is 0. Once set, the implicit wait is set for the life of the WebDriver object instance.
driver.manage().timeouts().implicitlyWait(10, TimeUnit.SECONDS);
Explicit Wait + Expected Conditions
An explicit waits is code you define to wait for a certain condition to occur before proceeding further in the code. The worst case of this is Thread.sleep(), which sets the condition to an exact time period to wait. There are some convenience methods provided that help you write code that will wait only as long as required. WebDriverWait in combination with ExpectedCondition is one way this can be accomplished.
WebDriverWait wait = new WebDriverWait(driver, 10);
WebElement element = wait.until(
ExpectedConditions.visibilityOfElementLocated(By.id("someid")));
Assume time column is in timestamp integer msec format
1 day = 86400000 ms
Here you go:
day_divider = 86400000
df['time'] = df['time'].values.astype(dtype='datetime64[ms]') # for msec format
df['time'] = (df['time']/day_divider).values.astype(dtype='datetime64[D]') # for day format
If you use mod_rewrite to hide the extension of your scripts, or if you just like pretty URLs that end in /, then you might want to approach this from the other direction. Tell nginx to let anything with a non-static extension to go through to apache. For example:
location ~* ^.+\.(jpg|jpeg|gif|png|ico|css|zip|tgz|gz|rar|bz2|pdf|txt|tar|wav|bmp|rtf|js|flv|swf|html|htm)$
{
root /path/to/static-content;
}
location ~* ^!.+\.(jpg|jpeg|gif|png|ico|css|zip|tgz|gz|rar|bz2|pdf|txt|tar|wav|bmp|rtf|js|flv|swf|html|htm)$ {
if (!-f $request_filename) {
return 404;
}
proxy_set_header X-Real-IP $remote_addr;
proxy_set_header Host $host;
proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
proxy_pass http://127.0.0.1:8080;
}
I found the first part of this snippet over at: http://code.google.com/p/scalr/wiki/NginxStatic
SELECT COUNT(ID) FROM tblA a
WHERE a.ID NOT IN (SELECT b.ID FROM tblB b) --For count
SELECT ID FROM tblA a
WHERE a.ID NOT IN (SELECT b.ID FROM tblB b) --For results
Apparently this would be possible in settings.gradle
with something like this.
rootProject.name = 'someName'
gradle.rootProject {
it.sourceCompatibility = '1.7'
}
I recently received advice that a project property can be set by using a closure which will be called later when the Project is available.
In the case that you delete your .class file in Eclipse and then try to build it again from the .java file it will do nothing. If you try to run the .java file without the .class file you will get an error that it can not find the main class.
You will either have to change and re-save the .java file then build it again, or else you have to run Clean on the project then build again.
Just in case this helps anyone. I was pulling my hair out trying to get this to work, then I noticed that the iframe had a class entry with height:100%. When I removed this, everything worked as expected. So, please check for any css conflicts.
Just resolved this issue. Its documented here.
I was calling $rootScope.$apply
twice in the same flow. All I did is wrapped the content of the service function with a setTimeout(func, 1)
.
Fetch vs Pull
Git fetch just updates your repo data, but a git pull will basically perform a fetch and then merge the branch pulled
What is the difference between 'git pull' and 'git fetch'?
Merge vs Rebase
from Atlassian SourceTree Blog, Merge or Rebase:
Merging brings two lines of development together while preserving the ancestry of each commit history.
In contrast, rebasing unifies the lines of development by re-writing changes from the source branch so that they appear as children of the destination branch – effectively pretending that those commits were written on top of the destination branch all along.
Also, check out Learn Git Branching, which is a nice game that has just been posted to HackerNews (link to post) and teaches a lot of branching and merging tricks. I believe it will be very helpful in this matter.
Use quarter turn, and increase the turn incrementally.
void (^block)() = ^{
imageToMove.transform = CGAffineTransformRotate(imageToMove.transform, M_PI / 2);
}
void (^completion)(BOOL) = ^(BOOL finished){
[UIView animateWithDuration:1.0
delay:0.0
options:0
animations:block
completion:completion];
}
completion(YES);
You can do and
with nested conditions:
if %age% geq 2 (
if %age% leq 12 (
set class=child
)
)
or:
if %age% geq 2 if %age% leq 12 set class=child
You can do or
with a separate variable:
set res=F
if %hour% leq 6 set res=T
if %hour% geq 22 set res=T
if "%res%"=="T" (
set state=asleep
)
Check out Joda, which simplifies date/time calculations (Joda is also the basis of the new standard Java date/time apis, so you'll be learning a soon-to-be-standard API).
EDIT: Java 8 has something very similar and is worth checking out.
e.g.
LocalDate birthdate = new LocalDate (1970, 1, 20);
LocalDate now = new LocalDate();
Years age = Years.yearsBetween(birthdate, now);
which is as simple as you could want. The pre-Java 8 stuff is (as you've identified) somewhat unintuitive.
This is great. I added a callback function
center: function (options, callback) {
if (options.transition > 0) {
$(this).animate(props, options.transition, callback);
} else {
$(this).css(props);
if (typeof callback == 'function') { // make sure the callback is a function
callback.call(this); // brings the scope to the callback
}
}
Kevin's code creates redundant MarginLayoutParams
object. Simpler version:
ImageView image = (ImageView) findViewById(R.id.main_image);
RelativeLayout.LayoutParams lp = new RelativeLayout.LayoutParams(image.getLayoutParams());
lp.setMargins(50, 100, 0, 0);
image.setLayoutParams(lp);
In chrome it is possible to use location.ancestorOrigins It will return all parent urls
If you don't want superClass.method1 to call subClass.method2, make method2 private so it cannot be overridden.
Here's a suggestion:
public class SuperClass {
public void method1() {
System.out.println("superclass method1");
this.internalMethod2();
}
public void method2() {
// this method can be overridden.
// It can still be invoked by a childclass using super
internalMethod2();
}
private void internalMethod2() {
// this one cannot. Call this one if you want to be sure to use
// this implementation.
System.out.println("superclass method2");
}
}
public class SubClass extends SuperClass {
@Override
public void method1() {
System.out.println("subclass method1");
super.method1();
}
@Override
public void method2() {
System.out.println("subclass method2");
}
}
If it didn't work this way, polymorphism would be impossible (or at least not even half as useful).
I mean, for instance, sometimes you want to get some additional info from somewhere (webservice, database) and you really don't care if you'll get this info or not. So you try to get it, and if anything happens, that's ok, I'll just add a "catch (Exception ignored) {}" and that's all
So, going with your example, it's a bad idea in that case because you're catching and ignoring all exceptions. If you were catching only EInfoFromIrrelevantSourceNotAvailable
and ignoring it, that would be fine, but you're not. You're also ignoring ENetworkIsDown
, which may or may not be important. You're ignoring ENetworkCardHasMelted
and EFPUHasDecidedThatOnePlusOneIsSeventeen
, which are almost certainly important.
An empty catch block is not an issue if it's set up to only catch (and ignore) exceptions of certain types which you know to be unimportant. The situations in which it's a good idea to suppress and silently ignore all exceptions, without stopping to examine them first to see whether they're expected/normal/irrelevant or not, are exceedingly rare.
Just remove android:homeAsUpIndicator
and homeAsUpIndicator
from your theme and it will be fine. The color
attribute in your DrawerArrowStyle
style must be enough.
To select every nth element from any starting position in the vector
nth_element <- function(vector, starting_position, n) {
vector[seq(starting_position, length(vector), n)]
}
# E.g.
vec <- 1:12
nth_element(vec, 1, 3)
# [1] 1 4 7 10
nth_element(vec, 2, 3)
# [1] 2 5 8 11
This a single solution, in where your_field is a field that will set and new_value is a new value field, that can a function or a single value
foreach ($array as $key => $item) {
$item["your_field"] = "new_value";
$array[$key] = $item;
}
In your case new_value will be a date() function
First a disclaimer beforehand: the posted code snippets are all basic examples. You'll need to handle trivial IOException
s and RuntimeException
s like NullPointerException
, ArrayIndexOutOfBoundsException
and consorts yourself.
We first need to know at least the URL and the charset. The parameters are optional and depend on the functional requirements.
String url = "http://example.com";
String charset = "UTF-8"; // Or in Java 7 and later, use the constant: java.nio.charset.StandardCharsets.UTF_8.name()
String param1 = "value1";
String param2 = "value2";
// ...
String query = String.format("param1=%s¶m2=%s",
URLEncoder.encode(param1, charset),
URLEncoder.encode(param2, charset));
The query parameters must be in name=value
format and be concatenated by &
. You would normally also URL-encode the query parameters with the specified charset using URLEncoder#encode()
.
The String#format()
is just for convenience. I prefer it when I would need the String concatenation operator +
more than twice.
It's a trivial task. It's the default request method.
URLConnection connection = new URL(url + "?" + query).openConnection();
connection.setRequestProperty("Accept-Charset", charset);
InputStream response = connection.getInputStream();
// ...
Any query string should be concatenated to the URL using ?
. The Accept-Charset
header may hint the server what encoding the parameters are in. If you don't send any query string, then you can leave the Accept-Charset
header away. If you don't need to set any headers, then you can even use the URL#openStream()
shortcut method.
InputStream response = new URL(url).openStream();
// ...
Either way, if the other side is an HttpServlet
, then its doGet()
method will be called and the parameters will be available by HttpServletRequest#getParameter()
.
For testing purposes, you can print the response body to stdout as below:
try (Scanner scanner = new Scanner(response)) {
String responseBody = scanner.useDelimiter("\\A").next();
System.out.println(responseBody);
}
Setting the URLConnection#setDoOutput()
to true
implicitly sets the request method to POST. The standard HTTP POST as web forms do is of type application/x-www-form-urlencoded
wherein the query string is written to the request body.
URLConnection connection = new URL(url).openConnection();
connection.setDoOutput(true); // Triggers POST.
connection.setRequestProperty("Accept-Charset", charset);
connection.setRequestProperty("Content-Type", "application/x-www-form-urlencoded;charset=" + charset);
try (OutputStream output = connection.getOutputStream()) {
output.write(query.getBytes(charset));
}
InputStream response = connection.getInputStream();
// ...
Note: whenever you'd like to submit a HTML form programmatically, don't forget to take the name=value
pairs of any <input type="hidden">
elements into the query string and of course also the name=value
pair of the <input type="submit">
element which you'd like to "press" programmatically (because that's usually been used in the server side to distinguish if a button was pressed and if so, which one).
You can also cast the obtained URLConnection
to HttpURLConnection
and use its HttpURLConnection#setRequestMethod()
instead. But if you're trying to use the connection for output you still need to set URLConnection#setDoOutput()
to true
.
HttpURLConnection httpConnection = (HttpURLConnection) new URL(url).openConnection();
httpConnection.setRequestMethod("POST");
// ...
Either way, if the other side is an HttpServlet
, then its doPost()
method will be called and the parameters will be available by HttpServletRequest#getParameter()
.
You can fire the HTTP request explicitly with URLConnection#connect()
, but the request will automatically be fired on demand when you want to get any information about the HTTP response, such as the response body using URLConnection#getInputStream()
and so on. The above examples does exactly that, so the connect()
call is in fact superfluous.
You need an HttpURLConnection
here. Cast it first if necessary.
int status = httpConnection.getResponseCode();
for (Entry<String, List<String>> header : connection.getHeaderFields().entrySet()) {
System.out.println(header.getKey() + "=" + header.getValue());
}
When the Content-Type
contains a charset
parameter, then the response body is likely text based and we'd like to process the response body with the server-side specified character encoding then.
String contentType = connection.getHeaderField("Content-Type");
String charset = null;
for (String param : contentType.replace(" ", "").split(";")) {
if (param.startsWith("charset=")) {
charset = param.split("=", 2)[1];
break;
}
}
if (charset != null) {
try (BufferedReader reader = new BufferedReader(new InputStreamReader(response, charset))) {
for (String line; (line = reader.readLine()) != null;) {
// ... System.out.println(line) ?
}
}
} else {
// It's likely binary content, use InputStream/OutputStream.
}
The server side session is usually backed by a cookie. Some web forms require that you're logged in and/or are tracked by a session. You can use the CookieHandler
API to maintain cookies. You need to prepare a CookieManager
with a CookiePolicy
of ACCEPT_ALL
before sending all HTTP requests.
// First set the default cookie manager.
CookieHandler.setDefault(new CookieManager(null, CookiePolicy.ACCEPT_ALL));
// All the following subsequent URLConnections will use the same cookie manager.
URLConnection connection = new URL(url).openConnection();
// ...
connection = new URL(url).openConnection();
// ...
connection = new URL(url).openConnection();
// ...
Note that this is known to not always work properly in all circumstances. If it fails for you, then best is to manually gather and set the cookie headers. You basically need to grab all Set-Cookie
headers from the response of the login or the first GET
request and then pass this through the subsequent requests.
// Gather all cookies on the first request.
URLConnection connection = new URL(url).openConnection();
List<String> cookies = connection.getHeaderFields().get("Set-Cookie");
// ...
// Then use the same cookies on all subsequent requests.
connection = new URL(url).openConnection();
for (String cookie : cookies) {
connection.addRequestProperty("Cookie", cookie.split(";", 2)[0]);
}
// ...
The split(";", 2)[0]
is there to get rid of cookie attributes which are irrelevant for the server side like expires
, path
, etc. Alternatively, you could also use cookie.substring(0, cookie.indexOf(';'))
instead of split()
.
The HttpURLConnection
will by default buffer the entire request body before actually sending it, regardless of whether you've set a fixed content length yourself using connection.setRequestProperty("Content-Length", contentLength);
. This may cause OutOfMemoryException
s whenever you concurrently send large POST requests (e.g. uploading files). To avoid this, you would like to set the HttpURLConnection#setFixedLengthStreamingMode()
.
httpConnection.setFixedLengthStreamingMode(contentLength);
But if the content length is really not known beforehand, then you can make use of chunked streaming mode by setting the HttpURLConnection#setChunkedStreamingMode()
accordingly. This will set the HTTP Transfer-Encoding
header to chunked
which will force the request body being sent in chunks. The below example will send the body in chunks of 1KB.
httpConnection.setChunkedStreamingMode(1024);
It can happen that a request returns an unexpected response, while it works fine with a real web browser. The server side is probably blocking requests based on the User-Agent
request header. The URLConnection
will by default set it to Java/1.6.0_19
where the last part is obviously the JRE version. You can override this as follows:
connection.setRequestProperty("User-Agent", "Mozilla/5.0 (Windows NT 6.1) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/41.0.2228.0 Safari/537.36"); // Do as if you're using Chrome 41 on Windows 7.
Use the User-Agent string from a recent browser.
If the HTTP response code is 4nn
(Client Error) or 5nn
(Server Error), then you may want to read the HttpURLConnection#getErrorStream()
to see if the server has sent any useful error information.
InputStream error = ((HttpURLConnection) connection).getErrorStream();
If the HTTP response code is -1, then something went wrong with connection and response handling. The HttpURLConnection
implementation is in older JREs somewhat buggy with keeping connections alive. You may want to turn it off by setting the http.keepAlive
system property to false
. You can do this programmatically in the beginning of your application by:
System.setProperty("http.keepAlive", "false");
You'd normally use multipart/form-data
encoding for mixed POST content (binary and character data). The encoding is in more detail described in RFC2388.
String param = "value";
File textFile = new File("/path/to/file.txt");
File binaryFile = new File("/path/to/file.bin");
String boundary = Long.toHexString(System.currentTimeMillis()); // Just generate some unique random value.
String CRLF = "\r\n"; // Line separator required by multipart/form-data.
URLConnection connection = new URL(url).openConnection();
connection.setDoOutput(true);
connection.setRequestProperty("Content-Type", "multipart/form-data; boundary=" + boundary);
try (
OutputStream output = connection.getOutputStream();
PrintWriter writer = new PrintWriter(new OutputStreamWriter(output, charset), true);
) {
// Send normal param.
writer.append("--" + boundary).append(CRLF);
writer.append("Content-Disposition: form-data; name=\"param\"").append(CRLF);
writer.append("Content-Type: text/plain; charset=" + charset).append(CRLF);
writer.append(CRLF).append(param).append(CRLF).flush();
// Send text file.
writer.append("--" + boundary).append(CRLF);
writer.append("Content-Disposition: form-data; name=\"textFile\"; filename=\"" + textFile.getName() + "\"").append(CRLF);
writer.append("Content-Type: text/plain; charset=" + charset).append(CRLF); // Text file itself must be saved in this charset!
writer.append(CRLF).flush();
Files.copy(textFile.toPath(), output);
output.flush(); // Important before continuing with writer!
writer.append(CRLF).flush(); // CRLF is important! It indicates end of boundary.
// Send binary file.
writer.append("--" + boundary).append(CRLF);
writer.append("Content-Disposition: form-data; name=\"binaryFile\"; filename=\"" + binaryFile.getName() + "\"").append(CRLF);
writer.append("Content-Type: " + URLConnection.guessContentTypeFromName(binaryFile.getName())).append(CRLF);
writer.append("Content-Transfer-Encoding: binary").append(CRLF);
writer.append(CRLF).flush();
Files.copy(binaryFile.toPath(), output);
output.flush(); // Important before continuing with writer!
writer.append(CRLF).flush(); // CRLF is important! It indicates end of boundary.
// End of multipart/form-data.
writer.append("--" + boundary + "--").append(CRLF).flush();
}
If the other side is an HttpServlet
, then its doPost()
method will be called and the parts will be available by HttpServletRequest#getPart()
(note, thus not getParameter()
and so on!). The getPart()
method is however relatively new, it's introduced in Servlet 3.0 (Glassfish 3, Tomcat 7, etc). Prior to Servlet 3.0, your best choice is using Apache Commons FileUpload to parse a multipart/form-data
request. Also see this answer for examples of both the FileUpload and the Servelt 3.0 approaches.
Sometimes you need to connect an HTTPS URL, perhaps because you're writing a web scraper. In that case, you may likely face a javax.net.ssl.SSLException: Not trusted server certificate
on some HTTPS sites who doesn't keep their SSL certificates up to date, or a java.security.cert.CertificateException: No subject alternative DNS name matching [hostname] found
or javax.net.ssl.SSLProtocolException: handshake alert: unrecognized_name
on some misconfigured HTTPS sites.
The following one-time-run static
initializer in your web scraper class should make HttpsURLConnection
more lenient as to those HTTPS sites and thus not throw those exceptions anymore.
static {
TrustManager[] trustAllCertificates = new TrustManager[] {
new X509TrustManager() {
@Override
public X509Certificate[] getAcceptedIssuers() {
return null; // Not relevant.
}
@Override
public void checkClientTrusted(X509Certificate[] certs, String authType) {
// Do nothing. Just allow them all.
}
@Override
public void checkServerTrusted(X509Certificate[] certs, String authType) {
// Do nothing. Just allow them all.
}
}
};
HostnameVerifier trustAllHostnames = new HostnameVerifier() {
@Override
public boolean verify(String hostname, SSLSession session) {
return true; // Just allow them all.
}
};
try {
System.setProperty("jsse.enableSNIExtension", "false");
SSLContext sc = SSLContext.getInstance("SSL");
sc.init(null, trustAllCertificates, new SecureRandom());
HttpsURLConnection.setDefaultSSLSocketFactory(sc.getSocketFactory());
HttpsURLConnection.setDefaultHostnameVerifier(trustAllHostnames);
}
catch (GeneralSecurityException e) {
throw new ExceptionInInitializerError(e);
}
}
The Apache HttpComponents HttpClient is much more convenient in this all :)
If all you want is parsing and extracting data from HTML, then better use a HTML parser like Jsoup
After spending hours i found the solution go to "Build Phases" Then "Check Pods Manifest.lock" Tick "Run Script only when installing"
The technique we use at work is to request the javascript file using an AJAX request and then eval() the return. If you're using the prototype library, they support this functionality in their Ajax.Request call.
Sorry to post to an old question but I was able to fix it using a totally different solution. I was getting this exception but I changed the first line of my onCreatView override from this:
View result = inflater.inflate(R.layout.customer_layout, container);
...to this:
View result = inflater.inflate(R.layout.customer_layout, container, false);
I have no idea why but using the override that accepts the boolean as the third param fixed it. I think it tells the Fragment and/or Activity not to use the "container" as the parent of the newly-created View.
Here's a succinct way of doing it:
let endEditingTapGesture = UITapGestureRecognizer(target: view, action: #selector(UIView.endEditing(_:)))
endEditingTapGesture.cancelsTouchesInView = false
view.addGestureRecognizer(endEditingTapGesture)
var result = Regex.Replace("123- abcd33", @"[0-9\-]", string.Empty);
Try this one, I test it, working fine
Date date = null;
String str = "2012/07/25 12:00:00";
DateFormat formatter = new SimpleDateFormat("yyyy/MM/dd HH:mm:ss");
date = formatter.parse(str);
Calendar calendar = Calendar.getInstance();
calendar.setTime(date);
calendar.add(Calendar.HOUR, 2);
System.out.println(calendar.getTime()); // Output : Wed Jul 25 14:00:00 IST 2012
If you want to convert in your input type than add this code also
formatter = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");
str=formatter.format(calendar.getTime());
System.out.println(str); // Output : 2012-07-25 14:00:00
Go to obj folder in you app folder, then Debug. In there delete the manifest file and build again. It worked for me.
DateTime dt1 = DateTime.ParseExact([YourDate], "dd-MM-yyyy HH:mm:ss",
CultureInfo.InvariantCulture);
Note the use of HH (24-hour clock) rather than hh (12-hour clock), and the use of InvariantCulture because some cultures use separators other than slash.
For example, if the culture is de-DE, the format "dd/MM/yyyy" would expect period as a separator (31.01.2011).
In case you want to pass multiple arguments you can use a tuple
price = 33.3
with open("Output.txt", "w") as text_file:
text_file.write("Purchase Amount: %s price %f" % (TotalAmount, price))
Follow these steps when deploying the Windows Service, don't lose time:
Run command prompt by the Admin right
Insure about release mode when compilling in your IDE
Give a type to your project installer on design view
Select authentication type in accordance the case
Insure about software dependencies: If you are using a certificate install it correctly
Go your console write this:
C:\Windows\Microsoft.NET\Framework\yourRecentVersion\installutil.exe c:\yourservice.exe
there is a hidden -i argument before the exe path -i c:\
you can use -u
for uninstallling
Use $(this).find()
, or pass this in context, using jQuery context with selector.
Using $(this).find()
$(".class").click(function(){
$(this).find(".subclass").css("visibility","visible");
});
Using this
in context, $( selector, context )
, it will internally call find function, so better to use find on first place.
$(".class").click(function(){
$(".subclass", this).css("visibility","visible");
});
To run your_command
as a subprocess in a different directory, pass cwd
parameter, as suggested in @wim's answer:
import subprocess
subprocess.check_call(['your_command', 'arg 1', 'arg 2'], cwd=working_dir)
A child process can't change its parent's working directory (normally). Running cd ..
in a child shell process using subprocess won't change your parent Python script's working directory i.e., the code example in @glglgl's answer is wrong. cd
is a shell builtin (not a separate executable), it can change the directory only in the same process.
By playing with parameters as -XX:PermSize
and -Xms
you can tune the performance of - for example - the startup of your application. I haven't looked at it recently, but a few years back the default value of -Xms
was something like 32MB (I think), if your application required a lot more than that it would trigger a number of cycles of fill memory - full garbage collect - increase memory etc until it had loaded everything it needed. This cycle can be detrimental for startup performance, so immediately assigning the number required could improve startup.
A similar cycle is applied to the permanent generation. So tuning these parameters can improve startup (amongst others).
WARNING The JVM has a lot of optimization and intelligence when it comes to allocating memory, dividing eden space and older generations etc, so don't do things like making -Xms
equal to -Xmx
or -XX:PermSize
equal to -XX:MaxPermSize
as it will remove some of the optimizations the JVM can apply to its allocation strategies and therefor reduce your application performance instead of improving it.
As always: make non-trivial measurements to prove your changes actually improve performance overall (for example improving startup time could be disastrous for performance during use of the application)
By searching for my userid in the registry, I found
HKEY_CURRENT_USER\Volatile Environment\Username
System.Windows.Forms.Control.MousePosition
Gets the position of the mouse cursor in screen coordinates. "The Position property is identical to the Control.MousePosition property."
**Filter by name, age ** also, you can use the map function
difference between map and filter
1. map - The map() method creates a new array with the results of calling a function for every array element. The map method allows items in an array to be manipulated to the user’s preference, returning the conclusion of the chosen manipulation in an entirely new array. For example, consider the following array:
2. filter - The filter() method creates an array filled with all array elements that pass a test implemented by the provided function. The filter method is well suited for particular instances where the user must identify certain items in an array that share a common characteristic. For example, consider the following array:
const users = [
{ name: "john", age: 23 },
{ name: "john", age:43 },
{ name: "jim", age: 101 },
{ name: "bob", age: 67 }
];
const user = _.filter(users, {name: 'jim', age: 101});
console.log(user);
Yes, I now made think for me. And it works fine!!!
if($("div:contains('CONGRATULATIONS')").length)
{
$('#SignupForm').hide(500);
}
No need to go in such deep technicalities, and get yourself blasted. Let me explain it in the most easiest way. We all have studied "Sets" during our school-age in Mathematics. Just consider 3D numpy array as the formation of "sets".
x = np.zeros((2,3,4))
Simply Means:
2 Sets, 3 Rows per Set, 4 Columns
Example:
Input
x = np.zeros((2,3,4))
Output
Set # 1 ---- [[[ 0., 0., 0., 0.], ---- Row 1
[ 0., 0., 0., 0.], ---- Row 2
[ 0., 0., 0., 0.]], ---- Row 3
Set # 2 ---- [[ 0., 0., 0., 0.], ---- Row 1
[ 0., 0., 0., 0.], ---- Row 2
[ 0., 0., 0., 0.]]] ---- Row 3
Explanation: See? we have 2 Sets, 3 Rows per Set, and 4 Columns.
Note: Whenever you see a "Set of numbers" closed in double brackets from both ends. Consider it as a "set". And 3D and 3D+ arrays are always built on these "sets".
I've created a library sysend.js, it's very small, you can check its source code. The library don't have any external dependencies.
You can use it for communication between tabs/windows in same browser and domain. The library use BroadcastChannel, if supported, or storage event from localStorage.
API is very simple:
sysend.on('foo', function(message) {
console.log(message);
});
sysend.broadcast('foo', {message: 'Hello'});
sysend.broadcast('foo', "hello");
sysend.broadcast('foo'); // empty notification
when your brower support BroadcastChannel it sent literal object (but it's in fact auto-serialized by browser) and if not it's serialized to JSON first and deserialized on other end.
Recent version also have helper API to create proxy for Cross-Domain communication. (it require single html file on target domain).
Here is demo.
EDIT:
New version also support Cross-Domain communication, if you include special proxy.html
file on target domain and call proxy
function from source domain:
sysend.proxy('https://target.com');
(proxy.html it's very simple html file, that only have one script tag with the library).
If you want two way communication you need to do the same on other domain.
NOTE: If you will implement same functionality using localStorage, there is issue in IE. Storage event is sent to the same window, which triggered the event and for other browsers it's only invoked for other tabs/windows.
I am only mentioning this as no one mentioned this. There's no programming language I am aware of which allows manipulation of the underlying filesystem. All programming languages rely on OS interrupts to actually get these things done. JavaScript that runs in the browser only has browser "interrupts" to work with which generally does not grant filesystem access unless the browser has been implemented to support such interrupts.
This being said the obvious way to have file system access using JavaScript is to use Node.js which does have the capability of interacting with the underlying OS directly.
Another way, is simply add the headers to your route:
router.get('/', function(req, res) {
res.setHeader('Access-Control-Allow-Origin', '*');
res.setHeader('Access-Control-Allow-Methods', 'GET, POST, OPTIONS, PUT, PATCH, DELETE'); // If needed
res.setHeader('Access-Control-Allow-Headers', 'X-Requested-With,content-type'); // If needed
res.setHeader('Access-Control-Allow-Credentials', true); // If needed
res.send('cors problem fixed:)');
});
If your app runs on an HTML5 enabled browser. You can use postMessage. The example given there is quite similar to yours.
This ought to do the trick.
<style>
div.block{
overflow:hidden;
}
div.block label{
width:160px;
display:block;
float:left;
text-align:left;
}
div.block .input{
margin-left:4px;
float:left;
}
</style>
<div class="block">
<label>First field</label>
<input class="input" type="text" id="txtFirstName"/>
</div>
<div class="block">
<label>Second field</label>
<input class="input" type="text" id="txtLastName"/>
</div>
I hope you get the concept.
You are right, the second Dockerfile will overwrite the CMD
command of the first one. Docker will always run a single command, not more. So at the end of your Dockerfile, you can specify one command to run. Not more.
But you can execute both commands in one line:
FROM centos+ssh
EXPOSE 22
EXPOSE 4149
CMD service sshd start && /opt/mq/sbin/rabbitmq-server start
What you could also do to make your Dockerfile a little bit cleaner, you could put your CMD commands to an extra file:
FROM centos+ssh
EXPOSE 22
EXPOSE 4149
CMD sh /home/centos/all_your_commands.sh
And a file like this:
service sshd start &
/opt/mq/sbin/rabbitmq-server start
First of all, you don't need the entitlements file unless you are adding custom key/value pairs that do not exist in the provisioning profile. When your app is built, any entitlements from the provisioning profile will be copied to the app.
Given that you still see an error message about missing entitlements, I can only assume the code signing options are not correct in the build settings.
You need to make sure the correct profile is selected for the "Debug" configuration, and to be safe, that you have selected the correct profile for both the "Debug" and child-node labelled "Any iOS SDK":
Although this screenshot shows the "Automatic Developer" profile selected, choose the exact provisioning profile you want from the drop down, just for testing purposes. It could be that Xcode is automatically choosing a different profile than the one you want.
Also be sure to do a clean build, completely delete the app from your device, etc. This is just to make sure you don't have some old fluff hanging around.
Union type is in my mind best option in this case:
interface Employee{
id: number;
name: string;
salary: number | null;
}
// Both cases are valid
let employe1: Employee = { id: 1, name: 'John', salary: 100 };
let employe2: Employee = { id: 1, name: 'John', salary: null };
EDIT : For this to work as expected, you should enable the strictNullChecks
in tsconfig
.
The best option (for my of course) is do it yourserfl. It means you can modify programattly all parts of the SOAP message
Binding binding = prov.getBinding();
List<Handler> handlerChain = binding.getHandlerChain();
handlerChain.add( new ModifyMessageHandler() );
binding.setHandlerChain( handlerChain );
And the ModifyMessageHandler source could be
@Override
public boolean handleMessage( SOAPMessageContext context )
{
SOAPMessage msg = context.getMessage();
try
{
SOAPEnvelope envelope = msg.getSOAPPart().getEnvelope();
SOAPHeader header = envelope.addHeader();
SOAPElement ele = header.addChildElement( new QName( "http://uri", "name_of_header" ) );
ele.addTextNode( "value_of_header" );
ele = header.addChildElement( new QName( "http://uri", "name_of_header" ) );
ele.addTextNode( "value_of_header" );
ele = header.addChildElement( new QName( "http://uri", "name_of_header" ) );
ele.addTextNode( "value_of_header" );
...
I hope this helps you
Use a semicolon
OpenFileDialog of = new OpenFileDialog();
of.Filter = "Excel Files|*.xls;*.xlsx;*.xlsm";
I recommend you to use an unordered list for your image gallery.
You should use my code unless you want the image to gain instantly 50% opacity after you hover out. You will have a smoother transition.
#photos li {
opacity: .5;
transition: opacity .5s ease-out;
-moz-transition: opacity .5s ease-out;
-webkit-transition: opacity .5s ease-out;
-o-transition: opacity .5s ease-out;
}
#photos li:hover {
opacity: 1;
}
I would suggest you go for bulk insert as suggested in this article : Bulk Insertion of Data Using C# DataTable and SQL server OpenXML function
AVG version 18.1.3044 (with Windows 10) interfer with my local Spring application.
Solution: enter in AVG section called "Web and email" and disable the "email protection". AVG block the certificate if the site isn't secure.
import tarfile
tar = tarfile.open("sample.tar.gz", "w:gz")
for name in ["file1", "file2", "file3"]:
tar.add(name)
tar.close()
If you want to create a tar.bz2 compressed file, just replace file extension name with ".tar.bz2" and "w:gz" with "w:bz2".
Just:
document.getElementById('myDiv').innerHTMl += "New Content";
If I recall correctly Twig doesn't support ||
and &&
operators, but requires or
and and
to be used respectively. I'd also use parentheses to denote the two statements more clearly although this isn't technically a requirement.
{%if ( fields | length > 0 ) or ( trans_fields | length > 0 ) %}
Expressions
Expressions can be used in {% blocks %} and ${ expressions }.
Operator Description
== Does the left expression equal the right expression?
+ Convert both arguments into a number and add them.
- Convert both arguments into a number and substract them.
* Convert both arguments into a number and multiply them.
/ Convert both arguments into a number and divide them.
% Convert both arguments into a number and calculate the rest of the integer division.
~ Convert both arguments into a string and concatenate them.
or True if the left or the right expression is true.
and True if the left and the right expression is true.
not Negate the expression.
For more complex operations, it may be best to wrap individual expressions in parentheses to avoid confusion:
{% if (foo and bar) or (fizz and (foo + bar == 3)) %}
Harder Way (learning purpose) :
var number = 150
var percent= 10
var result = 0
for (var index = 0; index < number; index++) {
const calculate = index / number * 100
if (calculate == percent) result += index
}
return result
Environ()
gets you the value of any environment variable. These can be found by doing the following command in the Command Prompt:
set
If you wanted to get the username, you would do:
Environ("username")
If you wanted to get the fully qualified name, you would do:
Environ("userdomain") & "\" & Environ("username")
An alternative in Python 2.6 or above is to use collections.namedtuple()
-- it saves you writing any special methods:
from collections import namedtuple
MyThingBase = namedtuple("MyThingBase", ["name", "location"])
class MyThing(MyThingBase):
def __new__(cls, name, location, length):
obj = MyThingBase.__new__(cls, name, location)
obj.length = length
return obj
a = MyThing("a", "here", 10)
b = MyThing("a", "here", 20)
c = MyThing("c", "there", 10)
a == b
# True
hash(a) == hash(b)
# True
a == c
# False
I had the same problem because I changed the user from myself to someone else:
su
For some reason, after did the normal compiling I was not able to execute it (the same error message). Directly ssh to the other user account works.
An alternative way to accomplish what you are asking, without having problems on the mobile version of your website, (Remember that the margin attribute will brake your responsive layout on mobile version thus you have to add on your element a supplementary attribute like @media (min-width:768px){ 'your-class'{margin:0}}
to override the previous margin)
is to nest your class in your preferred div and then add on your class the margin option you want
like the following example: HTML
<div class="container">
<div class="col-md-3 col-xs-12">
<div class="events">
<img src="..." class="img-responsive" alt="...."/>
<div class="figcaption">
<h2>Event Title</h2>
<p>Event Description.</p>
</div>
</div>
</div>
<div class="col-md-3 col-xs-12">
<div class="events">
<img src="..." class="img-responsive" alt="...."/>
<div class="figcaption">
<h2>Event Title</h2>
<p>Event Description. </p>
</div>
</div>
</div>
<div class="col-md-3 col-xs-12">
<div class="events">
<img src="..." class="img-responsive" alt="...."/>
<div class="figcaption">
<h2>Event Title</h2>
<p>Event Description. </p>
</div>
</div>
</div>
</div>
And on your CSS you just add the margin option on your class which in this example is "events" like:
.events{
margin: 20px 10px;
}
By this method you will have all the wanted space between your divs making sure you do not brake anything on your website's mobile and tablet versions.
Try this.
dpkg -s apache2 | grep Status
dpkg -s php5 | grep Status
i have tested a sample and i would like to share this sample and i am sure it's quite help full. I have done all thing in body, first creating an structure there on click of button you will call a function selectallelement(); on mouse click which will pass the id of that div about which you want to know the childrens. I have given alerts here on different level so u can test where r u now in the coding .
<body>
<h1>javascript to count the number of children of given child</h1>
<div id="count">
<span>a</span>
<span>s</span>
<span>d</span>
<span>ff</span>
<div>fsds</div>
<p>fffff</p>
</div>
<button type="button" onclick="selectallelement('count')">click</button>
<p>total element no.</p>
<p id="sho">here</p>
<script>
function selectallelement(divid)
{
alert(divid);
var ele = document.getElementById(divid).children;
var match = new Array();
var i = fillArray(ele,match);
alert(i);
document.getElementById('sho').innerHTML = i;
}
function fillArray(e1,a1)
{
alert("we are here");
for(var i =0;i<e1.length;i++)
{
if(e1[i].id.indexOf('count') == 0)
a1.push(e1[i]);
}
return i;
}
</script>
</body>
USE THIS I AM SURE U WILL GET YOUR ANSWER ...THANKS
If they are separate class files within the same project, then you do not need to have an 'import' statement. Just use the class straight off. If the files are in separate projects, you need to add a reference to the project first before you can use an 'import' statement on it.
Try using this instead:
var latitude = results[0].geometry.location.lat();
var longitude = results[0].geometry.location.lng();
It's bit hard to navigate Google's api but here is the relevant documentation.
One thing I had trouble finding was how to go in the other direction. From coordinates to an address. Here is the code I neded upp using. Please not that I also use jquery.
$.each(results[0].address_components, function(){
$("#CreateDialog").find('input[name="'+ this.types+'"]').attr('value', this.long_name);
});
What I'm doing is to loop through all the returned address_components
and test if their types match any input element names I have in a form. And if they do I set the value of the element to the address_components
value.
If you're only interrested in the whole formated address then you can follow Google's example
As long as the browser supports ECMA-262, 5th edition (December 2009), this should work, almost one-liner:
var bFound = myArray.some(function (obj) {
return obj.id === 45;
});
You can do this through a regular UPDATE
with a JOIN
UPDATE T1
SET Description = T2.Description
FROM Table1 T1
JOIN Table2 T2
ON T2.ID = T1.DescriptionId
Another option may be this John Resig remove method. can better fit what you need. if you know the index in the array.
I am using Spring Boot 5. I have this controller that I want an unauthenticated user to invoke.
//Builds a form to send to devices
@RequestMapping(value = "/{id}/ViewFormit", method = RequestMethod.GET)
@ResponseBody
String doFormIT(@PathVariable String id) {
try
{
//Get a list of forms applicable to the current user
FormService parent = new FormService();
Here is what i did in the configuuration.
@Override
protected void configure(HttpSecurity http) throws Exception {
http
.authorizeRequests()
.antMatchers(
"/registration**",
"/{^[\\\\d]$}/ViewFormit",
Hope this helps....
I think you can use the "engines" field:
{ "engines" : { "node" : ">=0.12" } }
As you're saying your code definitely won't work with any lower versions, you probably want the "engineStrict" flag too:
{ "engineStrict" : true }
Documentation for the package.json file can be found on the npmjs site
Update
engineStrict
is now deprecated, so this will only give a warning. It's now down to the user to run npm config set engine-strict true
if they want this.
Update 2
As ben pointed out below, creating a .npmrc
file at the root of your project (the same level as your package.json file) with the text engine-strict=true
will force an error during installation if the Node version is not compatible.
Yes, there is a better way: You can use the $parse service in your directive to evaluate an expression in the context of the parent scope while binding certain identifiers in the expression to values visible only inside your directive:
$parse(attributes.callback)(scope.$parent, { arg2: yourSecondArgument });
Add this line to the link function of the directive where you can access the directive's attributes.
Your callback attribute may then be set like callback = "callback(item.id, arg2)"
because arg2 is bound to yourSecondArgument by the $parse service inside the directive. Directives like ng-click
let you access the click event via the $event
identifier inside the expression passed to the directive by using exactly this mechanism.
Note that you do not have to make callback
a member of your isolated scope with this solution.
@Limp, your answer is right, just use .nextLine() while reading the input. Sample code:
do {
try {
System.out.println("Enter first num: ");
n1 = Integer.parseInt(input.nextLine());
System.out.println("Enter second num: ");
n2 = Integer.parseInt(input.nextLine());
nQuotient = n1 / n2;
bError = false;
} catch (Exception e) {
System.out.println("Error!");
}
} while (bError);
System.out.printf("%d/%d = %d", n1, n2, nQuotient);
Read the description of why this problem was caused in the link below. Look for the answer I posted for the detail in this thread. Java Homework user input issue
Ok, I will briefly describe it. When you read input using nextInt(), you just read the number part but the ENDLINE character was still on the stream. That was the main cause. Now look at the code above, all I did is read the whole line and parse it , it still throws the exception and work the way you were expecting it to work. Rest of your code works fine.