Initially I trying with the below code which didn't work for me
MetadataSources metadataSources = new MetadataSources(serviceRegistry);
Metadata metadata = metadataSources.getMetadataBuilder().build();
SessionFactory sessionFactory= metadata.getSessionFactoryBuilder().build();
For me below configuration worked. All the hibernate properties i provided from the code itself and using hibernate version 5+. I'm trying to connect to the Postgressql db.
imports:
import org.hibernate.Session;
import org.hibernate.SessionFactory;
import org.hibernate.Transaction;
import org.hibernate.boot.registry.StandardServiceRegistryBuilder;
import org.hibernate.cfg.Configuration;
import org.hibernate.cfg.Environment;
import org.hibernate.service.ServiceRegistry;
code:
Configuration configuration = new Configuration();
configuration.setProperty("hibernate.current_session_context_class", "thread");
configuration.setProperty(Environment.DRIVER, "org.postgresql.Driver");
configuration.setProperty(Environment.URL, lmsParams.getDbProperties().getDbURL());
configuration.setProperty(Environment.USER, lmsParams.getDbProperties().getUsername());
configuration.setProperty(Environment.PASS, lmsParams.getDbProperties().getPassword());
configuration.setProperty("hibernate.connection.release_mode", "auto");
configuration.setProperty("hibernate.dialect", "org.hibernate.dialect.PostgreSQLDialect");
configuration.setProperty("hibernate.show_sql", "true");
configuration.setProperty(Environment.HBM2DDL_AUTO, "create");
configuration.addAnnotatedClass(LMSSourceTable.class);
ServiceRegistry serviceRegistry = new StandardServiceRegistryBuilder()
.applySettings(configuration.getProperties())
.build();
SessionFactory sessionFactory = configuration.buildSessionFactory(serviceRegistry);
Latest Update: One more option worked for me using the Reflections package as a dependency. This i tried with both mysql and postgress and it works fine.
Some info about Reflections: The Reflections library works as a classpath scanner. It indexes the scanned metadata and allows us to query it at runtime. It can also save this information, so we can collect and use it at any point during our project, without having to re-scan the classpath again
if you are using maven:
<dependency>
<groupId>org.reflections</groupId>
<artifactId>reflections</artifactId>
<version>0.9.11</version>
</dependency>
code:
MetadataSources metadataSources = new
MetadataSources(serviceRegistry);
Reflections entityPackageReflections = new Reflections("com.company.abc.package.name");
entityPackageReflections.getTypesAnnotatedWith(Entity.class).forEach(metadataSources::addAnnotatedClass);
Metadata metadata = metadataSources.getMetadataBuilder().build();
SessionFactory sessionFactory= metadata.getSessionFactoryBuilder().build();
They're essentially the same... They both use swig for templating, they both use karma and mocha for tests, passport integration, nodemon, etc.
Why so similar? Mean.js is a fork of Mean.io and both initiatives were started by the same guy... Mean.io is now under the umbrella of the company Linnovate and looks like the guy (Amos Haviv) stopped his collaboration with this company and started Mean.js. You can read more about the reasons here.
Now... main (or little) differences you can see right now are:
SCAFFOLDING AND BOILERPLATE GENERATION
Mean.io uses a custom cli tool named 'mean'
Mean.js uses Yeoman Generators
MODULARITY
Mean.io uses a more self-contained node packages modularity with client and server files inside the modules.
Mean.js uses modules just in the front-end (for angular), and connects them with Express. Although they were working on vertical modules as well...
BUILD SYSTEM
Mean.io has recently moved to gulp
Mean.js uses grunt
DEPLOYMENT
Both have Dockerfiles in their respective repos, and Mean.io has one-click install on Google Compute Engine, while Mean.js can also be deployed with one-click install on Digital Ocean.
DOCUMENTATION
Mean.io has ok docs
Mean.js has AWESOME docs
COMMUNITY
Mean.io has a bigger community since it was the original boilerplate
Mean.js has less momentum but steady growth
On a personal level, I like more the philosophy and openness of MeanJS and more the traction and modules/packages approach of MeanIO. Both are nice, and you'll end probably modifying them, so you can't really go wrong picking one or the other. Just take them as starting point and as a learning exercise.
MEAN is a generic way (coined by Valeri Karpov) to describe a boilerplate/framework that takes "Mongo + Express + Angular + Node" as the base of the stack. You can find frameworks with this stack that use other denomination, some of them really good for RAD (Rapid Application Development) and building SPAs. Eg:
You also have Hackathon Starter. It doesn't have A of MEAN (it is 'MEN'), but it rocks..
Have fun!
Your plunker is firing off
angular.element(document.getElementById('MyController')).scope().myfunction('test');
Before anything is rendered.
You can verify that by wrapping it in a timeout
setTimeout(function() {
angular.element(document.getElementById('MyController')).scope().myfunction('test');
}, 1000);
You also need to acutally add an ID to your div.
<div ng-app='MyModule' ng-controller="MyController" id="MyController">
I would use submodules (as Pat Notz) or two distinct repositories. If you modify your binary files too often, then I would try to minimize the impact of the huge repository cleaning the history:
I had a very similar problem several months ago: ~21 GB of MP3 files, unclassified (bad names, bad id3's, don't know if I like that MP3 file or not...), and replicated on three computers.
I used an external hard disk drive with the main Git repository, and I cloned it into each computer. Then, I started to classify them in the habitual way (pushing, pulling, merging... deleting and renaming many times).
At the end, I had only ~6 GB of MP3 files and ~83 GB in the .git directory. I used git-write-tree
and git-commit-tree
to create a new commit, without commit ancestors, and started a new branch pointing to that commit. The "git log" for that branch only showed one commit.
Then, I deleted the old branch, kept only the new branch, deleted the ref-logs, and run "git prune": after that, my .git folders weighted only ~6 GB...
You could "purge" the huge repository from time to time in the same way: Your "git clone"'s will be faster.
For the sake of completeness, now there is also fct_drop
in the forcats
package http://forcats.tidyverse.org/reference/fct_drop.html.
It differs from droplevels
in the way it deals with NA
:
f <- factor(c("a", "b", NA), exclude = NULL)
droplevels(f)
# [1] a b <NA>
# Levels: a b <NA>
forcats::fct_drop(f)
# [1] a b <NA>
# Levels: a b
Set the step
attribute to 1
:
<input type="number" step="1" />
This seems a bit buggy in Chrome right now so it might not be the best solution at the moment.
A better solution is to use the pattern
attribute, that uses a regular expression to match the input:
<input type="text" pattern="\d*" />
\d
is the regular expression for a number, *
means that it accepts more than one of them.
Here is the demo: http://jsfiddle.net/b8NrE/1/
can test it:
describe('TableItem Components', () => {
let open_url = ""
const { open } = window;
beforeAll(() => {
delete window.open;
window.open = (url) => { open_url = url };
});
afterAll(() => {
window.open = open;
});
test('string type', async () => {
wrapper.vm.openNewTab('http://example.com')
expect(open_url).toBe('http://example.com')
})
})
DF[ ! ( ( DF$sub ==1 & DF$day==2) | ( DF$sub ==3 & DF$day==4) ) , ] # note the ! (negation)
Or if sub is a factor as suggested by your use of quotes:
DF[ ! paste(sub,day,sep="_") %in% c("1_2", "3_4"), ]
Could also use subset:
subset(DF, ! paste(sub,day,sep="_") %in% c("1_2", "3_4") )
(And I endorse the use of which
in Dirk's answer when using "[" even though some claim it is not needed.)
Assuming dateTime1
and dateTime2
are DateTime
values:
var diffInSeconds = (dateTime1 - dateTime2).TotalSeconds;
In your case, you 'd use DateTime.Now
as one of the values and the time in the list as the other. Be careful of the order, as the result can be negative if dateTime1
is earlier than dateTime2
.
Array.from(myMap.keys())
does not work in google application scripts.
Trying to use it results in the error TypeError: Cannot find function from in object function Array() { [native code for Array.Array, arity=1] }
.
To get a list of keys in GAS do this:
var keysList = Object.keys(myMap);
The standard formula to extract the values of attribute using XPath is
elementXPath/@attributeName
So here is the xpath to fetch the lang value of first attribute-
//title[text()='Harry Potter']/@lang
PS: indexes are never suggested to use in XPath as they can change if one more title tag comes in.
A simple and better way for your exemple is:
BigDecimal price;
if(BigDecimal.ZERO.compareTo(price) == 0){
//Returns TRUE
}
After running your local host you get http://localhost:[port number]/
here you found your port number.
Then get your IP address from Command, Open your windows command and type ipconfig
In my case, IP was 192.168.10.33
so my URL will be http://192.168.10.33:[port number]/.
In Android, the studio uses this URL as your URL. And after that set your URL and your port number in manual proxy for the emulator.
The foreign key has to have the exact same type as the primary key that it references. For the example has the type “INT UNSIGNED NOT NULL” the foreing key also have to “INT UNSIGNED NOT NULL”
CREATE TABLE employees(
id_empl INT UNSIGNED NOT NULL AUTO_INCREMENT,
PRIMARY KEY(id)
);
CREATE TABLE offices(
id_office INT UNSIGNED NOT NULL AUTO_INCREMENT,
id_empl INT UNSIGNED NOT NULL,
PRIMARY KEY(id),
CONSTRAINT `constraint1` FOREIGN KEY (`id_empl`) REFERENCES `employees` (`id_empl`) ON DELETE CASCADE ON UPDATE CASCADE ) ENGINE=InnoDB DEFAULT CHARSET=utf8 COMMENT='my offices';
Try:
function initSlider(){
$('.references').slick({
dots: false,
infinite: true,
speed: 300,
slidesToShow: 1,
autoplay: true,
prevArrow: '<div class="slick-prev"><i class="fa fa-chevron-left"></i></div>',
nextArrow: '<div class="slick-next"><i class="fa fa-chevron-right"></i></div>'
});
}
$(document).on('ready', function () {
initSlider();
});
Also just to be sure, make sure that you include the JS file for the slider after you include jQuery and before you include the code above to initialise.
jsonlite
will import the JSON into a data frame. It can optionally flatten nested objects. Nested arrays will be data frames.
> library(jsonlite)
> winners <- fromJSON("winners.json", flatten=TRUE)
> colnames(winners)
[1] "winner" "votes" "startPrice" "lastVote.timestamp" "lastVote.user.name" "lastVote.user.user_id"
> winners[,c("winner","startPrice","lastVote.user.name")]
winner startPrice lastVote.user.name
1 68694999 0 Lamur
> winners[,c("votes")]
[[1]]
ts user.name user.user_id
1 Thu Mar 25 03:13:01 UTC 2010 Lamur 68694999
2 Thu Mar 25 03:13:08 UTC 2010 Lamur 68694999
You can do this easily with a matplotlib AxisDivider.
The example from the linked page also works without using subplots:
import matplotlib.pyplot as plt
from mpl_toolkits.axes_grid1 import make_axes_locatable
import numpy as np
plt.figure()
ax = plt.gca()
im = ax.imshow(np.arange(100).reshape((10,10)))
# create an axes on the right side of ax. The width of cax will be 5%
# of ax and the padding between cax and ax will be fixed at 0.05 inch.
divider = make_axes_locatable(ax)
cax = divider.append_axes("right", size="5%", pad=0.05)
plt.colorbar(im, cax=cax)
Another possibility is to simply add a big button with no content that lies underneath all views you might need to touch. Give it an action named:
@IBAction func dismissKeyboardButton(sender: AnyObject) {
view.endEditing(true)
}
The problem with a gesture recognizer was for me, that it also caught all touches I wanted to receive by the tableViewCells.
It sounds like you hit the "Insert" key .. in most applications this results in a fat (solid rectangle) cursor being displayed, as your screenshot suggests. This indicates that you are in overwrite mode rather than the default insert mode.
Just hit the "insert" key on your keyboard once more... it's usually near the 'delete' (not backspace), scroll lock and 'Print Screen' (often above the cursor keys in a full size keyboard.) This will switch back to insert mode and turn your cursor into a vertical line rather than a rectangle.
You can use arraylistname.clone()
I had a similar problem -- no matter what I did I couldn't get the tabsize to stick at 2, even though it is in my user settings -- that ended up being due to the EditorConfig extension. It looks for a .editorconfig
file in your current working directory and, if it doesn't find one (or the one it finds doesn't specify root=true
), it will continue looking at parent directories until it finds one.
Turns out I had a .editorconfig
in a parent directory of the dir I put all my new code projects in, and it specified a tabSize of 4. Deleting that file fixed my issue.
It happens when Xcode doesn't recognize your certificate.
It's just a pain in the ass to solve it, there are a lot of possibilities to help you.
But the first thing you should try is removing in the "Window" tab => Organizer, the provisioning that is in your device. Then re-add them (download them again on the apple website). And try to compile again.
By the way, did you check in the Project Info Window the "code signing identity" ?
Good Luck.
As a checkbox click = a checkbox change the following will also work:
<CheckBox Click="CheckBox_Click" />
private void CheckBox_Click(object sender, RoutedEventArgs e)
{
// ... do some stuff
}
It has the additional advantage of working when IsThreeState="True"
whereas just handling Checked and Unchecked does not.
All the answers are great here, I tried a couple of solutions mentioned above by Ryan, Chris and couldn't resolve the issue, so had to follow a quick and dirty way.
rm -rf <project dir>
(or mv <project dir> <backup projct dir>
if you want to keep a backup)git clone <project git url>
Nothing novel here, but it makes life easier!
java.io.NotSerializableException
can occur when you serialize an inner class instance because:
serializing such an inner class instance will result in serialization of its associated outer class instance as well
Serialization of inner classes (i.e., nested classes that are not static member classes), including local and anonymous classes, is strongly discouraged
If you want to use the same function on different events the following code block can be used
$('input').on('keyup blur focus', function () {
//function block
})
You could try Conditional Formatting available in the tool menu "Format -> Conditional Formatting".
One clean solution is to use NumPy's outer-product function with a vector of ones:
np.outer(np.ones(n), x)
gives n
repeating rows. Switch the argument order to get repeating columns. To get an equal number of rows and columns you might do
np.outer(np.ones_like(x), x)
You could also create the input button in this way:
var button = '<input type="button" id="questionButton" value='+variable+'> <br />';
It might be the syntax of the Button creation that is off somehow.
SQL> var P_YEARWEEK varchar2(6)
SQL> exec :P_YEARWEEK := '201118'
PL/SQL procedure successfully completed.
SQL> with t as
2 ( select substr(:P_YEARWEEK,1,4) year
3 , substr(:P_YEARWEEK,5,2) week
4 from dual
5 )
6 select year
7 , week
8 , trunc(to_date(year,'yyyy'),'yyyy') january_1
9 , trunc(trunc(to_date(year,'yyyy'),'yyyy'),'iw') monday_week_1
10 , trunc(trunc(to_date(year,'yyyy'),'yyyy'),'iw') + (week - 1) * 7 start_of_the_week
11 , trunc(trunc(to_date(year,'yyyy'),'yyyy'),'iw') + week * 7 - 1 end_of_the_week
12 from t
13 /
YEAR WE JANUARY_1 MONDAY_WEEK_1 START_OF_THE_WEEK END_OF_THE_WEEK
---- -- ------------------- ------------------- ------------------- -------------------
2011 18 01-01-2011 00:00:00 27-12-2010 00:00:00 25-04-2011 00:00:00 01-05-2011 00:00:00
1 row selected.
Regards,
Rob.
import jquery within <script> tag in your vue file.
I think this is the easiest way.
For example,
<script>
import $ from "jquery";
export default {
name: 'welcome',
mounted: function() {
window.setTimeout(function() {
$('.logo').css('opacity', 0);
}, 1000);
}
}
</script>
See my answer to this question: Detect support for background-attachment: fixed?
You can find this info right in the API reference.
var today = DateTime.Today;
var tomorrow = today.AddDays(1);
var yesterday = today.AddDays(-1);
Comparaison of the different methods:
> CGI::escapeHTML("quote ' double quotes \"")
=> "quote ' double quotes ""
> Rack::Utils.escape_html("quote ' double quotes \"")
=> "quote ' double quotes ""
> ERB::Util.html_escape("quote ' double quotes \"")
=> "quote ' double quotes ""
I wrote my own to be compatible with Rails ActiveMailer escaping:
def escape_html(str)
CGI.escapeHTML(str).gsub("'", "'")
end
Grokking lookaround rapidly.
How to distinguish lookahead and lookbehind?
Take 2 minutes tour with me:
(?=) - positive lookahead
(?<=) - positive lookbehind
Suppose
A B C #in a line
Now, we ask B, Where are you?
B has two solutions to declare it location:
One, B has A ahead and has C bebind
Two, B is ahead(lookahead) of C and behind (lookhehind) A.
As we can see, the behind and ahead are opposite in the two solutions.
Regex is solution Two.
You can use ObjectMapper.convertValue()
, either value by value or even for the whole list. But you need to know the type to convert to:
POJO pojo = mapper.convertValue(singleObject, POJO.class);
// or:
List<POJO> pojos = mapper.convertValue(listOfObjects, new TypeReference<List<POJO>>() { });
this is functionally same as if you did:
byte[] json = mapper.writeValueAsBytes(singleObject);
POJO pojo = mapper.readValue(json, POJO.class);
but avoids actual serialization of data as JSON, instead using an in-memory event sequence as the intermediate step.
The shortcut key is ctrl+] to indentation and ctrl +[ to unindent
in a Visual Basic Macro you would use
pName = ActiveWorkbook.Path ' the path of the currently active file
wbName = ActiveWorkbook.Name ' the file name of the currently active file
shtName = ActiveSheet.Name ' the name of the currently selected worksheet
The first sheet in a workbook can be referenced by
ActiveWorkbook.Worksheets(1)
so after deleting the [Report] tab you would use
ActiveWorkbook.Worksheets("Report").Delete
shtName = ActiveWorkbook.Worksheets(1).Name
to "work on that sheet later on" you can create a range object like
Dim MySheet as Range
MySheet = ActiveWorkbook.Worksheets(shtName).[A1]
and continue working on MySheet(rowNum, colNum)
etc. ...
shortcut creation of a range object without defining shtName:
Dim MySheet as Range
MySheet = ActiveWorkbook.Worksheets(1).[A1]
Reposting the answer from our forum to help others with a similar issue:
@connection = ActiveRecord::Base.connection
result = @connection.exec_query('select tablename from system.tables')
result.each do |row|
puts row
end
To add a class to a div that is generated via the HtmlGenericControl
way you can use:
div1.Attributes.Add("class", "classname");
If you are using the Panel
option, it would be:
panel1.CssClass = "classname";
List<String> items = Arrays.asList(commaSeparated.split(","));
That should work for you.
According to the CI docs (CodeIgniter Email Library)...
If you prefer not to set preferences using the above method, you can instead put them into a config file. Simply create a new file called the email.php, add the $config array in that file. Then save the file at config/email.php and it will be used automatically. You will NOT need to use the $this->email->initialize() function if you save your preferences in a config file.
I was able to get this to work by putting all the settings into application/config/email.php.
$config['useragent'] = 'CodeIgniter';
$config['protocol'] = 'smtp';
//$config['mailpath'] = '/usr/sbin/sendmail';
$config['smtp_host'] = 'ssl://smtp.googlemail.com';
$config['smtp_user'] = '[email protected]';
$config['smtp_pass'] = 'YOURPASSWORDHERE';
$config['smtp_port'] = 465;
$config['smtp_timeout'] = 5;
$config['wordwrap'] = TRUE;
$config['wrapchars'] = 76;
$config['mailtype'] = 'html';
$config['charset'] = 'utf-8';
$config['validate'] = FALSE;
$config['priority'] = 3;
$config['crlf'] = "\r\n";
$config['newline'] = "\r\n";
$config['bcc_batch_mode'] = FALSE;
$config['bcc_batch_size'] = 200;
Then, in one of the controller methods I have something like:
$this->load->library('email'); // Note: no $config param needed
$this->email->from('[email protected]', '[email protected]');
$this->email->to('[email protected]');
$this->email->subject('Test email from CI and Gmail');
$this->email->message('This is a test.');
$this->email->send();
Also, as Cerebro wrote, I had to uncomment out this line in my php.ini file and restart PHP:
extension=php_openssl.dll
I have been researching this for a few days, following endless leads that got close, but not quite, to what I was after.
My need is for a simple list of 'symbol, sector, industry'. I'm working in Java and don't want to use any platform native code.
It seems that most other data, like quotes, etc., is readily available.
Finally, followed a suggestion to look at 'finviz.com'. Looks like just the ticket. Try using the following:
http://finviz.com/export.ashx?v=111&t=aapl,cat&o=ticker This comes back as lines, csv style, with a header row, ordered by ticker symbol. You can keep adding tickers. In code, you can read the stream. Or you can let the browser ask you whether to open or save the file.
http://finviz.com/export.ashx?v=111&&o=ticker Same csv style, but pulls all available symbols (a lot, across global exchanges)
Replace 'export' with 'screener' and the data will show up in the browser.
There are many more options you can use, one for every screener element on the site.
So far, this is the most powerful and convenient programmatic way to get the few pieces of data I couldn't otherwise seem to easily get. And, it looks like this site could well be a single source for most of what you might need other than real- or near-real-time quotes.
Some pages may require more than login/pass. There may even be hidden fields. The most reliable way is to use inspect tool and look at the network tab while logging in, to see what data is being passed on.
I have written this article about the ICommand interface.
The idea - creating a universal command that takes two delegates: one is called when ICommand.Execute (object param)
is invoked, the second checks the status of whether you can execute the command (ICommand.CanExecute (object param))
.
Requires the method to switching event CanExecuteChanged
. It is called from the user interface elements for switching the state CanExecute()
command.
public class ModelCommand : ICommand
{
#region Constructors
public ModelCommand(Action<object> execute)
: this(execute, null) { }
public ModelCommand(Action<object> execute, Predicate<object> canExecute)
{
_execute = execute;
_canExecute = canExecute;
}
#endregion
#region ICommand Members
public event EventHandler CanExecuteChanged;
public bool CanExecute(object parameter)
{
return _canExecute != null ? _canExecute(parameter) : true;
}
public void Execute(object parameter)
{
if (_execute != null)
_execute(parameter);
}
public void OnCanExecuteChanged()
{
CanExecuteChanged(this, EventArgs.Empty);
}
#endregion
private readonly Action<object> _execute = null;
private readonly Predicate<object> _canExecute = null;
}
Check for the Classes you extend actually exists, few React methods are depreciated, It also might be a Typo error 'React.Components'
instead of 'React.Component'
Good Luck!!
Delete or rename the 2 following files from "C:\ProgramData\MySQL\MySQL Server 5.7\Data": ib_logfile0 ib_logfile1
Sorry I can't add comments as my reputation is not high enough :-/, so this will have to be an answer.
As several have commented, the code you have posted contains several (5) syntax errors (twice = instead of == and three ':' missing).
Once the syntax errors corrected I do not have any issue, be it indentation or else; of course it's impossible to see if you have mixed tabs and spaces as somebody else has suggested, which is likely your problem.
But the real point I wanted to underline is that: tabnanny IS NOT REALIABLE: you might be getting an 'indentation' error when it's actually just a syntax error.
Eg. I got it when I had added one closed parenthesis more than necessary ;-)
i += [func(a, b, [c] if True else None))]
would provoke a warning from tabnanny for the next line.
Hope this helps!
Instead of defining IMyTable
as in interface, try defining it as a class. In typescript you can use a class like an interface.
So for your example, define/generate your class like this:
export class IMyTable {
constructor(
public id = '',
public title = '',
public createdAt: Date = null,
public isDeleted = false
)
}
Use it as an interface:
export class SomeTable implements IMyTable {
...
}
Get keys:
const keys = Object.keys(new IMyTable());
You can find remainder using modulo operator Example
a=14
b=10
print(a%b)
It will print 4
<select name="owner">
<?php
$sql = mysql_query("SELECT username FROM users");
while ($row = mysql_fetch_array($sql)){
echo "<option value=\"owner1\">" . $row['username'] . "</option>";
}
?>
</select>
As Alex hinted in one of the answers, you could use the ContentNegotiationManagerFactoryBean to set the default content-type to "application/json", but I felt that that approach was not for me.
What I was trying to do was to post a form to a method like this
@RequestMapping(value = "/post/to/me", method = RequestMethod.POST, produces = MediaType.APPLICATION_JSON_VALUE, consumes = MediaType.MULTIPART_FORM_DATA_VALUE)
public @ResponseBody MyJsonPOJO handlePostForm(@Valid @ModelAttribute("form") ValidateMeForm form, BindingResult bindingResult) throws ApiException {
What I instead chose to do was to change the "Accept" header of the request from the browser to "application/json", thereby making SpringMVC find my method.
Using the (not yet finalized) Javascript Fetch API:
var form = new FormData();
form.append("myData", "data");
let fetchConfig = {
method: "POST",
body: form,
headers: {"Accept": "application/json"}
};
fetch("/post/to/me", fetchConfig)
.then(... // Javascript Promise API here
Et voilà! Now SpringMVC finds the method, validates the form, and lets you return a JSON POJO.
Since the file will be larger, you don't have very much choice in how to do this. You cannot process the file in place since that will destroy the information you need to use. You have two options that I can see:
Of course, the whole point of streams is to avoid this sort of scenario. Instead of creating the content and stuffing it into a file stream, stuff it into a memory stream. Then encode that and only then save to disk.
You can try this way also,
Html:
<form action="javascript:next()" method="post">
<input type="submit" value=Submit /></form>
Javascript:
function next(){
//Location where you want to forward your values
window.location.href = "http://localhost:8563/And/try1.jsp?dymanicValue=" + values;
}
with io.vavr
public static char[] alphanumericAlphabet() {
return CharSeq
.rangeClosed('0','9')
.appendAll(CharSeq.rangeClosed('a','z'))
.appendAll(CharSeq.rangeClosed('A','Z'))
.toCharArray();
}
Using the credentials helper command-line option:
git -c credential.helper='!f() { echo "password=mysecretpassword"; }; f' fetch origin
The following should be clean (using find_package
) and work (the find module is called FindThreads
):
cmake_minimum_required (VERSION 2.6)
find_package (Threads)
add_executable (myapp main.cpp ...)
target_link_libraries (myapp ${CMAKE_THREAD_LIBS_INIT})
Very good answer using inheritance, just remember to override the initializer
public class Utf8StringWriter : StringWriter
{
public Utf8StringWriter(StringBuilder sb) : base (sb)
{
}
public override Encoding Encoding { get { return Encoding.UTF8; } }
}
The following code fragment should return the size in bytes of any object passed to it, so long as it can be serialized. I got this from a colleague at Quixant to resolve a problem of writing to SRAM on a gaming platform. Hope it helps out. Credit and thanks to Carlo Vittuci.
/// <summary>
/// Calculates the lenght in bytes of an object
/// and returns the size
/// </summary>
/// <param name="TestObject"></param>
/// <returns></returns>
private int GetObjectSize(object TestObject)
{
BinaryFormatter bf = new BinaryFormatter();
MemoryStream ms = new MemoryStream();
byte[] Array;
bf.Serialize(ms, TestObject);
Array = ms.ToArray();
return Array.Length;
}
Another option is to use linear-gradient()
to cover up the edges of your image. Note that this is a stupid solution, so I'm not going to put much effort into explaining it...
.flair {_x000D_
min-width: 50px; /* width larger than sprite */_x000D_
text-indent: 60px;_x000D_
height: 25px;_x000D_
display: inline-block;_x000D_
background:_x000D_
linear-gradient(#F00, #F00) 50px 0/999px 1px repeat-y,_x000D_
url('https://championmains.github.io/dynamicflairs/riven/spritesheet.png') #F00;_x000D_
}_x000D_
_x000D_
.flair-classic {_x000D_
background-position: 50px 0, 0 -25px;_x000D_
}_x000D_
_x000D_
.flair-r2 {_x000D_
background-position: 50px 0, -50px -175px;_x000D_
}_x000D_
_x000D_
.flair-smite {_x000D_
text-indent: 35px;_x000D_
background-position: 25px 0, -50px -25px;_x000D_
}
_x000D_
<img src="https://championmains.github.io/dynamicflairs/riven/spritesheet.png" alt="spritesheet" /><br />_x000D_
<br />_x000D_
<span class="flair flair-classic">classic sprite</span><br /><br />_x000D_
<span class="flair flair-r2">r2 sprite</span><br /><br />_x000D_
<span class="flair flair-smite">smite sprite</span><br /><br />
_x000D_
I'm using this method on this page: https://championmains.github.io/dynamicflairs/riven/ and can't use ::before
or ::after
elements because I'm already using them for another hack.
You would typically first read from the input stream and then close it. You can wrap the FileInputStream in another InputStream (or Reader). It will be automatically closed when you close the wrapping stream/reader.
If this is a method returning an InputStream to the caller, then it is the caller's responsibility to close the stream when finished with it. If you close it in your method, the caller will not be able to use it.
To answer some of your comments...
To send the contents InputStream to a remote consumer, you would write the content of the InputStream to an OutputStream, and then close both streams.
The remote consumer does not know anything about the stream objects you have created. He just receives the content, in an InputStream which he will create, read from and close.
Just to phrase things differently from the great answers above, as that has helped me get an intuitive understanding of negative margins:
A negative margin on an element allows it to eat up the space of its parent container.
Adding a (positive) margin on the bottom doesn't allow the element to do that - it only pushes back whatever element is below.
Update for anyone using PyQt5 with python 3.x:
.ui
file."C:\python\Lib\site-packages\PyQt5\pyuic5.bat" -x Trial.ui -o trial_gui.py
for cases where PyQt5 is not a path variable. The path in quotes " " represents where the pyuic5.bat
file is.This should work!
If you're concerned about measuring elapsed time, you should use the monotonic clock (python 3). This clock is not affected by system clock updates like you would see if an NTP query adjusted your system time, for example.
>>> import time
>>> millis = round(time.monotonic() * 1000)
It provides a reference time in seconds that can be used to compare later to measure elapsed time.
Use LocalDate
from java.time, the modern Java date and time API, for a date
DateTimeFormatter dateFormatter = DateTimeFormatter.ofPattern("MMMM d, u", Locale.ENGLISH);
LocalDate date = LocalDate.parse("June 27, 2007", dateFormatter);
System.out.println(date);
Output:
2007-06-27
As others have said already, remember to specify an English-speaking locale when your string is in English. A LocalDate
is a date without time of day, so a lot better suitable for the date from your string than the old Date
class. Despite its name a Date
does not represent a date but a point in time that falls on at least two different dates in different time zones of the world.
Only if you need an old-fashioned Date
for an API that you cannot afford to upgrade to java.time just now, convert like this:
Instant startOfDay = date.atStartOfDay(ZoneId.systemDefault()).toInstant();
Date oldfashionedDate = Date.from(startOfDay);
System.out.println(oldfashionedDate);
Output in my time zone:
Wed Jun 27 00:00:00 CEST 2007
Oracle tutorial: Date Time explaining how to use java.time.
This article explains exactly how to handle this: How do I... Serialize a hash table in C# when the application requires it?
I hope this is helpful
Get "adbd insecure" from google play store, it helps give write access to custom roms that have it secured my the manufacturers.
Just use scope.$parent to associate function called to directive function
angular.module('myApp', [])
.controller('MyCtrl',['$scope',function($scope) {
}])
.directive('mydirective',function(){
function link(scope, el, attr){
//use scope.$parent to associate the function called to directive function
scope.$parent.myfunction = function directivefunction(parameter){
//do something
}
}
return {
link: link,
restrict: 'E'
};
});
in HTML
<div ng-controller="MyCtrl">
<mydirective></mydirective>
<button ng-click="myfunction(parameter)">call()</button>
</div>
Use new HashSet<String>
An example:
import java.util.HashSet;
import java.util.Set;
public class MainClass {
public static void main(String args[]) {
String[] name1 = { "Amy", "Jose", "Jeremy", "Alice", "Patrick" };
String[] name2 = { "Alan", "Amy", "Jeremy", "Helen", "Alexi" };
String[] name3 = { "Adel", "Aaron", "Amy", "James", "Alice" };
Set<String> letter = new HashSet<String>();
for (int i = 0; i < name1.length; i++)
letter.add(name1[i]);
for (int j = 0; j < name2.length; j++)
letter.add(name2[j]);
for (int k = 0; k < name3.length; k++)
letter.add(name3[k]);
System.out.println(letter.size() + " letters must be sent to: " + letter);
}
}
add:
import math
at beginning. and then use:
math.sqrt(num) # or any other function you deem neccessary
sdkmanager
(for advanced users / CI):You can find the download links for all individual packages, including various revisions, in the repository XML file: https://dl.google.com/android/repository/repository-12.xml
(where 12 is the version of the repository index and will increase in the future).
All <sdk:url>
values are relative to https://dl.google.com/android/repository
, so
<sdk:url>platform-27_r03.zip</sdk:url>
can be downloaded at https://dl.google.com/android/repository/platform-27_r03.zip
Similar summary XML files exist for system images as well:
Use:
+ scale_y_continuous(labels = scales::percent)
Or, to specify formatting parameters for the percent:
+ scale_y_continuous(labels = scales::percent_format(accuracy = 1))
(the command labels = percent
is obsolete since version 2.2.1 of ggplot2)
SQL
a language for talking to the
database. It lets you select data,
mutate and create database objects
(like tables, views, etc.), change
database settings.PL-SQL
a procedural programming language (with embedded SQL) T-SQL
(procedural) extensions for SQL used
by SQL ServerSometimes you don't want height or width to be affected without explicitly setting either. In that case, I find it helpful to use pseudo elements.
.border-me {
position: relative;
}
.border-me::after {
content: "";
position: absolute;
width: 100%;
height: 100%;
top: 0;
left: 0;
border: solid 1px black;
}
You can also do a lot more with the pseudo element so this is a pretty powerful pattern.
furthermore from Hazhir imput, for this issue is necessary inject that property in the checkbox xml configuration android:paddingLeft="0dp", this is for avoid the empty space at the checkbox left side.
In case none of the answers work perhaps the following clarifications will help. I followed the top answer and tried to load the program with ADB from the command line to reduce the possible complications and this did not work.
Once enabling PTP mode the ADB devices command would find my Nexus 4, but I could not push to it. I had to use Eclipse and in order for the dialog to display to accept the RSA key described below.
Note: When you connect a device running Android 4.2.2 or higher to your computer, the system shows a dialog asking whether to accept an RSA key.
The code worked for me was as follows
ng serve --port ABCD
For Example
ng serve --port 6300
When you use a function ...
<p onclick="update_url('/en/step2');">Link</p>
<script>
function update_url(url) {
history.pushState(null, null, url);
}
</script>
Here is a solution to getting an array (list) of bytes:
I found that you needed to convert the Int to a byte first, before passing it to the bytes():
bytes(int('0xA2', 16).to_bytes(1, "big"))
Then create a list from the bytes:
list(frame)
So your code should look like:
frame = b""
frame += bytes(int('0xA2', 16).to_bytes(1, "big"))
frame += bytes(int('0x01', 16).to_bytes(1, "big"))
frame += bytes(int('0x02', 16).to_bytes(1, "big"))
frame += bytes(int('0x03', 16).to_bytes(1, "big"))
frame += bytes(int('0x04', 16).to_bytes(1, "big"))
bytesList = list(frame)
The question was for an array (list) of bytes. You accepted an answer that doesn't tell how to get a list so I'm not sure if this is actually what you needed.
Adding this answer for completeness. I was using 15.0.6 and had this problem. I trued to import a module from Maven or Gradle an it went through the process, but the module did not appear. I tried deleting the .idea file and restarting. Uninstalling and installing the latest version (community 2016.2) addressed the problem.
INSERT INTO mt_magazine_subscription SELECT *
FROM tbl_magazine_subscription
ORDER BY magazine_subscription_id ASC
You can put your servers in the default_step
group and those vars will apply to it:
# inventory file
[default_step]
prod2
web_v2
Then just move your default_step.yml
file to group_vars/default_step.yml
.
I am sure we have a lot of good answers here. But, I just thought of adding the way I have used enumerated types
package main
import "fmt"
type Enum interface {
name() string
ordinal() int
values() *[]string
}
type GenderType uint
const (
MALE = iota
FEMALE
)
var genderTypeStrings = []string{
"MALE",
"FEMALE",
}
func (gt GenderType) name() string {
return genderTypeStrings[gt]
}
func (gt GenderType) ordinal() int {
return int(gt)
}
func (gt GenderType) values() *[]string {
return &genderTypeStrings
}
func main() {
var ds GenderType = MALE
fmt.Printf("The Gender is %s\n", ds.name())
}
This is by far one of the idiomatic ways we could create Enumerated types and use in Go.
Edit:
Adding another way of using constants to enumerate
package main
import (
"fmt"
)
const (
// UNSPECIFIED logs nothing
UNSPECIFIED Level = iota // 0 :
// TRACE logs everything
TRACE // 1
// INFO logs Info, Warnings and Errors
INFO // 2
// WARNING logs Warning and Errors
WARNING // 3
// ERROR just logs Errors
ERROR // 4
)
// Level holds the log level.
type Level int
func SetLogLevel(level Level) {
switch level {
case TRACE:
fmt.Println("trace")
return
case INFO:
fmt.Println("info")
return
case WARNING:
fmt.Println("warning")
return
case ERROR:
fmt.Println("error")
return
default:
fmt.Println("default")
return
}
}
func main() {
SetLogLevel(INFO)
}
A lazy way of doing this if there are alot of tables to be deleted.
Get table using the below
Copy and paste the table names from the result set and paste it after the DROP command.
No it doesn't wait and the way you are doing it in that sample is not good practice.
dispatch_async
is always asynchronous. It's just that you are enqueueing all the UI blocks to the same queue so the different blocks will run in sequence but parallel with your data processing code.
If you want the update to wait you can use dispatch_sync
instead.
// This will wait to finish
dispatch_sync(dispatch_get_main_queue(), ^{
// Update the UI on the main thread.
});
Another approach would be to nest enqueueing the block. I wouldn't recommend it for multiple levels though.
dispatch_async(dispatch_get_global_queue(DISPATCH_QUEUE_PRIORITY_DEFAULT, 0), ^{
// Background work
dispatch_async(dispatch_get_main_queue(), ^{
// Update UI
dispatch_async(dispatch_get_global_queue(DISPATCH_QUEUE_PRIORITY_DEFAULT, 0), ^{
// Background work
dispatch_async(dispatch_get_main_queue(), ^{
// Update UI
});
});
});
});
If you need the UI updated to wait then you should use the synchronous versions. It's quite okay to have a background thread wait for the main thread. UI updates should be very quick.
If you don't need utmost precision, your function can be reduced to:
v_norm = v / (np.linalg.norm(v) + 1e-16)
Both of the examples are in VB.NET.
Debug path:
TextBox1.Text = My.Application.Info.DirectoryPath
EXE path:
TextBox2.Text = IO.Path.GetFullPath(Application.ExecutablePath)
Here is a solution to your problem:
I've tried to solve problem like yours & I want to suggest to test from simple aspect.
Follow these steps: Learn from simple solution.
Step 1: Create a table schema using this SQL Query:
CREATE TABLE IF NOT EXISTS `user` (
`id` int(11) NOT NULL AUTO_INCREMENT,
`username` varchar(30) NOT NULL,
`password` varchar(32) NOT NULL,
`status` tinyint(1) DEFAULT '0',
PRIMARY KEY (`id`),
UNIQUE KEY `no_duplicate` (`username`,`password`)
) ENGINE=InnoDB DEFAULT CHARSET=latin1 AUTO_INCREMENT=1;
Step 2: Create an index of two columns to prevent duplicate data using following SQL Query:
ALTER TABLE `user` ADD INDEX no_duplicate (`username`, `password`);
or, Create an index of two column from GUI as follows:
Step 3: Update if exist, insert if not using following queries:
INSERT INTO `user`(`username`, `password`) VALUES ('ersks','Nepal') ON DUPLICATE KEY UPDATE `username`='master',`password`='Nepal';
INSERT INTO `user`(`username`, `password`) VALUES ('master','Nepal') ON DUPLICATE KEY UPDATE `username`='ersks',`password`='Nepal';
Something like:
DateTime today = DateTime.Today;
DateTime endOfMonth = new DateTime(today.Year, today.Month, 1).AddMonths(1).AddDays(-1);
Which is to say that you get the first day of next month, then subtract a day. The framework code will handle month length, leap years and such things.
Once you have the initial ul, you can use the children() method, which will only consider the immediate children of the element. As @activa points out, one way to easily select the root element is to give it a class or an id. The following assumes you have a root ul with id root
.
$('ul#root').children('li');
One-liner to list directories only from "here".
With file count.
for i in `ls -d */`; do g=`find ./$i -type f -print| wc -l`; echo "Directory $i contains $g files."; done
LoadLibrary
does not do what you think it does. It loads the DLL into the memory of the current process, but it does not magically import functions defined in it! This wouldn't be possible, as function calls are resolved by the linker at compile time while LoadLibrary
is called at runtime (remember that C++ is a statically typed language).
You need a separate WinAPI function to get the address of dynamically loaded functions: GetProcAddress
.
Example
#include <windows.h>
#include <iostream>
/* Define a function pointer for our imported
* function.
* This reads as "introduce the new type f_funci as the type:
* pointer to a function returning an int and
* taking no arguments.
*
* Make sure to use matching calling convention (__cdecl, __stdcall, ...)
* with the exported function. __stdcall is the convention used by the WinAPI
*/
typedef int (__stdcall *f_funci)();
int main()
{
HINSTANCE hGetProcIDDLL = LoadLibrary("C:\\Documents and Settings\\User\\Desktop\\test.dll");
if (!hGetProcIDDLL) {
std::cout << "could not load the dynamic library" << std::endl;
return EXIT_FAILURE;
}
// resolve function address here
f_funci funci = (f_funci)GetProcAddress(hGetProcIDDLL, "funci");
if (!funci) {
std::cout << "could not locate the function" << std::endl;
return EXIT_FAILURE;
}
std::cout << "funci() returned " << funci() << std::endl;
return EXIT_SUCCESS;
}
Also, you should export your function from the DLL correctly. This can be done like this:
int __declspec(dllexport) __stdcall funci() {
// ...
}
As Lundin notes, it's good practice to free the handle to the library if you don't need them it longer. This will cause it to get unloaded if no other process still holds a handle to the same DLL.
Your guess is the correct one. The only thing you have to remember is that the member function template definition (in addition to the declaration) should be in the header file, not the cpp, though it does not have to be in the body of the class declaration itself.
Try Facetype.js, you convert your .TTF font into a Javascript file. Full SEO compatible, supports FF, IE6 and Safari and degrades gracefully on other browsers.
I struggled with the same problem for a while just now (using Mac). Here is what I did and it finally worked:
(1) Confirm the .ssh directory exists:
#show all files including hidden
ls -a
(2) Accept all default values by just pressing enter at the prompt
Enter file in which to save the key (/Users/username/.ssh/id_rsa):
Enter passphrase (empty for no passphrase):
Enter same passphrase again:
You should get a message :
Your identification has been saved in /Users/username/.ssh/id_rsa.
Your public key has been saved in /Users/username/.ssh/id_rsa.pub.
The key fingerprint is:
BZA156:HVhsjsdhfdkjfdfhdX+BundfOytLezXvbx831/s [email protected]
The key's randomart image is:XXXXX
PS If you are configuring git for rails, do the following (source):
git config --global color.ui true
git config --global user.name "yourusername"
git config --global user.email "[email protected]"
ssh-keygen -t rsa -C "[email protected]"
(then accept all defaults by pressing enter)
For replacing in place you can also do:
sed -i '' 's/\"//g' file.txt
or in Linux
sed -i 's/\"//g' file.txt
Use breakpoint mixins like this:
.something {
padding: 5px;
@include media-breakpoint-up(sm) {
padding: 20px;
}
@include media-breakpoint-up(md) {
padding: 40px;
}
}
v4 alpha6 breakpoints reference
Below full options and values.
Breakpoint & up (toggle on value and above):
@include media-breakpoint-up(xs) { ... }
@include media-breakpoint-up(sm) { ... }
@include media-breakpoint-up(md) { ... }
@include media-breakpoint-up(lg) { ... }
@include media-breakpoint-up(xl) { ... }
breakpoint & up values:
// Extra small devices (portrait phones, less than 576px)
// No media query since this is the default in Bootstrap
// Small devices (landscape phones, 576px and up)
@media (min-width: 576px) { ... }
// Medium devices (tablets, 768px and up)
@media (min-width: 768px) { ... }
// Large devices (desktops, 992px and up)
@media (min-width: 992px) { ... }
// Extra large devices (large desktops, 1200px and up)
@media (min-width: 1200px) { ... }
breakpoint & down (toggle on value and down):
@include media-breakpoint-down(xs) { ... }
@include media-breakpoint-down(sm) { ... }
@include media-breakpoint-down(md) { ... }
@include media-breakpoint-down(lg) { ... }
breakpoint & down values:
// Extra small devices (portrait phones, less than 576px)
@media (max-width: 575px) { ... }
// Small devices (landscape phones, less than 768px)
@media (max-width: 767px) { ... }
// Medium devices (tablets, less than 992px)
@media (max-width: 991px) { ... }
// Large devices (desktops, less than 1200px)
@media (max-width: 1199px) { ... }
// Extra large devices (large desktops)
// No media query since the extra-large breakpoint has no upper bound on its width
breakpoint only:
@include media-breakpoint-only(xs) { ... }
@include media-breakpoint-only(sm) { ... }
@include media-breakpoint-only(md) { ... }
@include media-breakpoint-only(lg) { ... }
@include media-breakpoint-only(xl) { ... }
breakpoint only values (toggle in between values only):
// Extra small devices (portrait phones, less than 576px)
@media (max-width: 575px) { ... }
// Small devices (landscape phones, 576px and up)
@media (min-width: 576px) and (max-width: 767px) { ... }
// Medium devices (tablets, 768px and up)
@media (min-width: 768px) and (max-width: 991px) { ... }
// Large devices (desktops, 992px and up)
@media (min-width: 992px) and (max-width: 1199px) { ... }
// Extra large devices (large desktops, 1200px and up)
@media (min-width: 1200px) { ... }
Considering
$string="We have www/audio path where the audio files are stored"; //Considering the string like this
Either you can use
strstr($string, 'www/audio');
Or
$expStr=explode("www/audio",$string);
$resultString="www/audio".$expStr[1];
For the postgrersql10
I have solved it with
yum install postgresql10-contrib
Don't forget to activate extensions in postgresql.conf
shared_preload_libraries = 'pg_stat_statements'
pg_stat_statements.track = all
then of course restart
systemctl restart postgresql-10.service
all of the needed extensions you can find here
/usr/pgsql-10/share/extension/
The answer given by Matt K works perfectly fine.
However it is important to note one thing - If the div you are applying it to has absolute positioning, it wont work. For it to work, do this -
<div style="position:absolute; hei...">
<div style="position:relative; display: table-cell; vertical-align:middle; hei...">
<!-- here position MUST be relative, this div acts as a wrapper-->
...
</div>
</div>
One way is:
Display display = getWindowManager().getDefaultDisplay();
int width = display.getWidth();
int height = display.getHeight();
It is deprecated, and you should try the following code instead. The first two lines of code gives you the DisplayMetrics
objecs. This objects contains the fields like heightPixels
, widthPixels
.
DisplayMetrics metrics = new DisplayMetrics();
getWindowManager().getDefaultDisplay().getMetrics(metrics);
int height = metrics.heightPixels;
int width = metrics.widthPixels;
Api level 30 update
final WindowMetrics metrics = windowManager.getCurrentWindowMetrics();
// Gets all excluding insets
final WindowInsets windowInsets = metrics.getWindowInsets();
Insets insets = windowInsets.getInsetsIgnoreVisibility(WindowInsets.Type.navigationBars()
| WindowInsets.Type.displayCutout());
int insetsWidth = insets.right + insets.left;
int insetsHeight = insets.top + insets.bottom;
// Legacy size that Display#getSize reports
final Rect bounds = metrics.getBounds();
final Size legacySize = new Size(bounds.width() - insetsWidth,
bounds.height() - insetsHeight);
class Test extends Thread
{
public void run(){
try{
Thread.sleep(10000);
}catch(InterruptedException e){
System.out.println("test1");
throw new RuntimeException("Thread interrupted..."+e);
}
}
public static void main(String args[]){
Test t1=new Test1();
t1.start();
try{
t1.interrupt();
}catch(Exception e){
System.out.println("test2");
System.out.println("Exception handled "+e);
}
}
}
Its output doesn't contain test2 , so its not handling runtime exception. @jon skeet, @Jan Zyka
The solution provided by @user152949, as it was noted in commentaries, skips the first process and doesn't break when "exists" is set to true. Let me provide a fixed version:
#include <windows.h>
#include <tlhelp32.h>
#include <tchar.h>
bool IsProcessRunning(const TCHAR* const executableName) {
PROCESSENTRY32 entry;
entry.dwSize = sizeof(PROCESSENTRY32);
const auto snapshot = CreateToolhelp32Snapshot(TH32CS_SNAPPROCESS, NULL);
if (!Process32First(snapshot, &entry)) {
CloseHandle(snapshot);
return false;
}
do {
if (!_tcsicmp(entry.szExeFile, executableName)) {
CloseHandle(snapshot);
return true;
}
} while (Process32Next(snapshot, &entry));
CloseHandle(snapshot);
return false;
}
start "Chrome" "C:\Program Files (x86)\Google\Chrome\Application\chrome.exe" --profile-directory="Profile 2"
start "webpage name" "http://someurl.com/"
start "Chrome" "C:\Program Files (x86)\Google\Chrome\Application\chrome.exe" --profile-directory="Profile 3"
start "webpage name" "http://someurl.com/"
It does work by just taking the argument 'rb' read binary instead of 'r' read
<a href="..">no JS needed</a>
..
means parent directory.
All of the solutions work partially, and even below probably does not cover all of the cases. My issue was in trying to insert a string into a utf8 mysql table. The string (and its bytes) all conformed to utf8, but had several bad sequences. I assume that most of them were control or formatting.
function clean_string($string) {
$s = trim($string);
$s = iconv("UTF-8", "UTF-8//IGNORE", $s); // drop all non utf-8 characters
// this is some bad utf-8 byte sequence that makes mysql complain - control and formatting i think
$s = preg_replace('/(?>[\x00-\x1F]|\xC2[\x80-\x9F]|\xE2[\x80-\x8F]{2}|\xE2\x80[\xA4-\xA8]|\xE2\x81[\x9F-\xAF])/', ' ', $s);
$s = preg_replace('/\s+/', ' ', $s); // reduce all multiple whitespace to a single space
return $s;
}
To further exacerbate the problem is the table vs. server vs. connection vs. rendering of the content, as talked about a little here
Have a look at config.sample.inc.php: you will find examples of the configuration directives that you should copy to your config.inc.php (copy the missing ones). Then, have a look at examples/create_tables.sql which will help you create the missing tables.
The complete documentation for this is available at http://docs.phpmyadmin.net/en/latest/setup.html#phpmyadmin-configuration-storage.
If you are on WSL, and following a guide which say, says this:
java -Djava.library.path=./DynamoDBLocal_lib -jar DynamoDBLocal.jar -sharedDb
You actually need to specify the full path, even though you've provided it in the java.library.path
part.
java -Djava.library.path=/mnt/c/dynamodb_local/DynamoDBLocal_lib -jar /mnt/c/dynamodb_local/DynamoDBLocal.jar -sharedDb
Use the View for your efforts in altering the position of the column: CREATE VIEW CORRECTED_POSITION AS SELECT co1_1, col_3, col_2 FROM UNORDERDED_POSITION should help.
This requests are made so some reports get produced where it is using SELECT * FROM [table_name]. Or, some business has a hierarchy approach of placing the information in order for better readability from the back end.
Thanks Dilip
I just had this idea, so maybe it's shortsighted, but it seems to work well and might be the most consistent between your CSS and JS.
In your CSS you set the max-width value for html based on the @media screen value:
@media screen and (max-width: 480px) and (orientation: portrait){
html {
max-width: 480px;
}
... more styles for max-width 480px screens go here
}
Then, using JS (probably via a framework like JQuery), you would just check the max-width value of the html tag:
maxwidth = $('html').css('max-width');
Now you can use this value to make conditional changes:
If (maxwidth == '480px') { do something }
If putting the max-width value on the html tag seems scary, then maybe you can put on a different tag, one that is only used for this purpose. For my purpose the html tag works fine and doesn't affect my markup.
Useful if you are using Sass, etc: To return a more abstract value, such as breakpoint name, instead of px value you can do something like:
<div id="breakpoint-indicator" />
$('#breakpoint-indicator').css('content');
), which returns "large", or "mobile", etc depending on what the content property is set to by the media query.Now you can act on same breakpoint names as you do in sass, e.g. sass: @include respond-to(xs)
, and js if ($breakpoint = "xs) {}
.
What I especially like about this is that I can define my breakpoint names all in css and in one place (likely a variables scss document) and my js can act on them independently.
I got confused by the answer to this question, so I created a test case in MySQL, hope this helps
-- Schema
CREATE TABLE T1 (
`ID` int not null auto_increment,
`Label` varchar(50),
primary key (`ID`)
);
CREATE TABLE T2 (
`ID` int not null auto_increment,
`Label` varchar(50),
primary key (`ID`)
);
CREATE TABLE TT (
`IDT1` int not null,
`IDT2` int not null,
primary key (`IDT1`,`IDT2`)
);
ALTER TABLE `TT`
ADD CONSTRAINT `fk_tt_t1` FOREIGN KEY (`IDT1`) REFERENCES `T1`(`ID`) ON DELETE CASCADE,
ADD CONSTRAINT `fk_tt_t2` FOREIGN KEY (`IDT2`) REFERENCES `T2`(`ID`) ON DELETE CASCADE;
-- Data
INSERT INTO `T1` (`Label`) VALUES ('T1V1'),('T1V2'),('T1V3'),('T1V4');
INSERT INTO `T2` (`Label`) VALUES ('T2V1'),('T2V2'),('T2V3'),('T2V4');
INSERT INTO `TT` (`IDT1`,`IDT2`) VALUES
(1,1),(1,2),(1,3),(1,4),
(2,1),(2,2),(2,3),(2,4),
(3,1),(3,2),(3,3),(3,4),
(4,1),(4,2),(4,3),(4,4);
-- Delete
DELETE FROM `T2` WHERE `ID`=4; -- Delete one field, all the associated fields on tt, will be deleted, no change in T1
TRUNCATE `T2`; -- Can't truncate a table with a referenced field
DELETE FROM `T2`; -- This will do the job, delete all fields from T2, and all associations from TT, no change in T1
A little more reusable function:
beginsWith = function(needle, haystack){
return (haystack.substr(0, needle.length) == needle);
}
switch ($method) {
case "GET":
curl_setopt($curl, CURLOPT_CUSTOMREQUEST, "GET");
break;
case "POST":
curl_setopt($curl, CURLOPT_CUSTOMREQUEST, "POST");
break;
case "PUT":
curl_setopt($curl, CURLOPT_CUSTOMREQUEST, "PUT");
break;
case "DELETE":
curl_setopt($curl, CURLOPT_CUSTOMREQUEST, "DELETE");
break;
}
The easiest way to do that would be to use the Params plugin, introduced in beta5. It has utility methods to make it easy to access different types of parameters. As always, reading the tests can prove valuable to understand how something is supposed to be used.
To get the value of a named parameter in a controller, you will need to select the appropriate method for the type of parameter you are looking for and pass in the name.
$this->params()->fromPost('paramname'); // From POST
$this->params()->fromQuery('paramname'); // From GET
$this->params()->fromRoute('paramname'); // From RouteMatch
$this->params()->fromHeader('paramname'); // From header
$this->params()->fromFiles('paramname'); // From file being uploaded
All of these methods also support default values that will be returned if no parameter with the given name is found.
$orderBy = $this->params()->fromQuery('orderby', 'name');
When visiting http://example.com/?orderby=birthdate,
$orderBy will have the value birthdate.
When visiting http://example.com/,
$orderBy will have the default value name.
To get all parameters of one type, just don't pass in anything and the Params plugin will return an array of values with their names as keys.
$allGetValues = $this->params()->fromQuery(); // empty method call
When visiting http://example.com/?orderby=birthdate&filter=hasphone $allGetValues will be an array like
array(
'orderby' => 'birthdate',
'filter' => 'hasphone',
);
If you check the source code for the Params plugin, you will see that it's just a thin wrapper around other controllers to allow for more consistent parameter retrieval. If you for some reason want/need to access them directly, you can see in the source code how it's done.
$this->getRequest()->getRequest('name', 'default');
$this->getEvent()->getRouteMatch()->getParam('name', 'default');
NOTE: You could have used the superglobals $_GET, $_POST etc., but that is discouraged.
This is an example of forEach usage:
let arr = [];
this.myArray.forEach((value, index) => {
arr.push(value);
console.log(value);
console.log(index);
});
In this case, "myArray" is an array on my data.
You can also loop through an array using filter, but this one should be used if you want to get a new list with filtered elements of your array.
Something like this:
const newArray = this.myArray.filter((value, index) => {
console.log(value);
console.log(index);
if (value > 5) return true;
});
and the same can be written as:
const newArray = this.myArray.filter((value, index) => value > 5);
Both filter and forEach are javascript methods and will work just fine with VueJs. Also, it might be interesting taking a look at this:
https://developer.mozilla.org/pt-BR/docs/Web/JavaScript/Reference/Global_Objects/Array/forEach
You can use:
Resources.getSystem().getString(android.R.string.somecommonstuff)
... everywhere in your application, even in static constants declarations. Unfortunately, it supports the system resources only.
For local resources use this solution. It is not trivial, but it works.
Your statement matches any string that contains a letter or digit anywhere, even if it contains other non-alphanumeric characters. Try this:
SELECT * FROM table WHERE column REGEXP '^[A-Za-z0-9]+$';
^
and $
require the entire string to match rather than just any portion of it, and +
looks for 1 or more alphanumberic characters.
You could also use a named character class if you prefer:
SELECT * FROM table WHERE column REGEXP '^[[:alnum:]]+$';
My own __init__.py
files are empty more often than not. In particular, I never have a from blah import *
as part of __init__.py
-- if "importing the package" means getting all sort of classes, functions etc defined directly as part of the package, then I would lexically copy the contents of blah.py
into the package's __init__.py
instead and remove blah.py
(the multiplication of source files does no good here).
If you do insist on supporting the import *
idioms (eek), then using __all__
(with as miniscule a list of names as you can bring yourself to have in it) may help for damage control. In general, namespaces and explicit imports are good things, and I strong suggest reconsidering any approach based on systematically bypassing either or both concepts!-)
I managed to fix it finally. The problem is not related to HikariCP.
The problem persisted because of some complex methods in REST controllers executing multiple changes in DB through JPA repositories. For some reasons calls to these interfaces resulted in a growing number of "freezed" active connections, exhausting the pool. Either annotating these methods as @Transactional
or enveloping all the logic in a single call to transactional service method seem to solve the problem.
What you have is correct, though you will not call it global, it is a class attribute and can be accessed via class e.g Shape.lolwut
or via an instance e.g. shape.lolwut
but be careful while setting it as it will set an instance level attribute not class attribute
class Shape(object):
lolwut = 1
shape = Shape()
print Shape.lolwut, # 1
print shape.lolwut, # 1
# setting shape.lolwut would not change class attribute lolwut
# but will create it in the instance
shape.lolwut = 2
print Shape.lolwut, # 1
print shape.lolwut, # 2
# to change class attribute access it via class
Shape.lolwut = 3
print Shape.lolwut, # 3
print shape.lolwut # 2
output:
1 1 1 2 3 2
Somebody may expect output to be 1 1 2 2 3 3
but it would be incorrect
Git accepts kdiff3, tkdiff, meld, xxdiff, emerge, vimdiff, gvimdiff, ecmerge,
and opendiff as valid diff tools. You can also set up a custom tool.
git config --global diff.tool vimdiff
git config --global diff.tool kdiff3
git config --global diff.tool meld
git config --global diff.tool xxdiff
git config --global diff.tool emerge
git config --global diff.tool gvimdiff
git config --global diff.tool ecmerge
I had similar problem - I want to replace picture on :hover but can't use BACKGRUND-IMAGE due to lack of Bootstrap's adaptive design.
If you like me only want to change the picture on :hover (but not insist of change SRC for the certain image tag) you can do something like this - it's CSS-only solution.
HTML:
<li>
<img src="/picts/doctors/SmallGray/Zharkova_smallgrey.jpg">
<img class="hoverPhoto" src="/picts/doctors/Small/Zharkova_small.jpg">
</li>
CSS:
li { position: relative; overflow: hidden; }
li img.hoverPhoto {
position: absolute;
top: 0;
right: 0;
left: 0;
bottom: 0;
opacity: 0;
}
li.hover img { /* it's optional - for nicer transition effect */
opacity: 0;
-web-kit-transition: opacity 1s ease;
-moz-transition: opacity 1s ease;li
-o-transition: opacity 1s ease;
transition: opacity 1s ease;
}
li.hover img.hoverPhoto { opacity: 1; }
If you want IE7-compatible code you may hide/show :HOVER image by positioning not by opacity.
The first answer is a very good one. In order to get to the Expert level, you should do a PhD with some of the Experts themselves.
I suggest you to visit the Haskell page: http://haskell.org. There you have a lot of material, and a lot of references to the most up-to-date stuff in Haskell, approved by the Haskell community.
You can try this approach. This query returns 10 most populated cities for each country.
SELECT city, country, population
FROM
(SELECT city, country, population,
@country_rank := IF(@current_country = country, @country_rank + 1, 1) AS country_rank,
@current_country := country
FROM cities
ORDER BY country, population DESC
) ranked
WHERE country_rank <= 10;
const handleClick = async (item: NavheadersType, index: number) => {
const newNavHeaders = [...navheaders];
if (item.url) {
await router.push(item.url); =>>>> line causing error (causing route to happen)
// router.push(item.url); =>>> coreect line
newNavHeaders.forEach((item) => (item.active = false));
newNavHeaders[index].active = true;
setnavheaders([...newNavHeaders]);
}
};
Not totally sure what you mean by "automatically" - you can create a container object that holds both objects:
public class FileImageHolder { String fileName; String imageName; //TODO: insert stuff here }
And then put that in an array list and randomize that array list.
Otherwise, you would need to keep track of where each element moved in one list, and move it in the other one as well.
Definitely BBEdit. I code, and BBEdit is what I use to code.
Try using the default Android keyboard it will disappear
imageView.setImageDrawable(getResources().getDrawable(R.drawable.my_drawable));
Here are two methods to achieve the same thing:
Using parameters and return (recommended)
def other_function(parameter):
return parameter + 5
def main_function():
x = 10
print(x)
x = other_function(x)
print(x)
When you run main_function
, you'll get the following output
>>> 10
>>> 15
Using globals (never do this)
x = 0 # The initial value of x, with global scope
def other_function():
global x
x = x + 5
def main_function():
print(x) # Just printing - no need to declare global yet
global x # So we can change the global x
x = 10
print(x)
other_function()
print(x)
Now you will get:
>>> 0 # Initial global value
>>> 10 # Now we've set it to 10 in `main_function()`
>>> 15 # Now we've added 5 in `other_function()`
SELECT *
FROM pg_settings
WHERE name = 'port';
Your solution is correct, but there is some redundancy in your regex.
The similar result can also be obtained from the following regex:
^([A-Z]{3})$
The {3}
indicates that the [A-Z]
must appear exactly 3 times.
I am not sure what the last line means. Does it mean, I read the file, create multiple Movie objects. Then make a vector of pointers where each element (pointer) points to one of those Movie objects?
I would guess this is what is intended. The intent is probably that you read the data for one movie, allocate an object with new
, fill the object in with the data, and then push the address of the data onto the vector
(probably not the best design, but most likely what's intended anyway).
The easiest way is to use the modulus division operator.
if ($counter % 3 == 0) {
echo 'image file';
}
How this works: Modulus division returns the remainder. The remainder is always equal to 0 when you are at an even multiple.
There is one catch: 0 % 3
is equal to 0. This could result in unexpected results if your counter starts at 0.
This works in all browsers:
window.location.href = '...';
If you wanted to change the page without it reflecting in the browser back history, you can do:
window.location.replace('...');
To get the maximum value of a column across a set of rows:
SELECT MAX(column1) FROM table; -- expect one result
To get the maximum value of a set of columns, literals, or variables for each row:
SELECT GREATEST(column1, 1, 0, @val) FROM table; -- expect many results
std::string var = "sometext" + somevar + "sometext" + somevar;
This doesn't work because the additions are performed left-to-right and "sometext"
(the first one) is just a const char *
. It has no operator+
to call. The simplest fix is this:
std::string var = std::string("sometext") + somevar + "sometext" + somevar;
Now, the first parameter in the left-to-right list of +
operations is a std::string
, which has an operator+(const char *)
. That operator produces a string, which makes the rest of the chain work.
You can also make all the operations be on var
, which is a std::string
and so has all the necessary operators:
var = "sometext";
var += somevar;
var += "sometext";
var += somevar;
You can't call a non-static method without first creating an instance of its parent class.
So from the static method, you would have to instantiate a new object...
Vehicle myCar = new Vehicle();
... and then call the non-static method.
myCar.Drive();
You can also use the following command:
echo toto; history -d $(history | sed -n '$s/\s*\([0-9]*\)\s*.*$/\1/p')
I think it's a very portable command.
You can simply install PHPUnit to run commands (https://github.com/sebastianbergmann/phpunit/#php-archive-phar):
wget https://phar.phpunit.de/phpunit.phar
chmod +x phpunit.phar
mv phpunit.phar /usr/local/bin/phpunit
Run single test
And then run PHPunit test:
phpunit test.php
Content of test file is following:
<?php
class StackTest extends PHPUnit_Framework_TestCase
{
protected function setUp()
{
}
public function testSave()
{
}
}
Run test suite
Configuration of test suite: demosuite.xml. demo
is directory containing all tests. Test files must be named as *_test.php
(suffix
).
<testsuites>
<testsuite name="DemoTestSuite">
<directory suffix="test.php">demo</directory>
</testsuite>
</testsuites>
Test suite runs with following commands:
phpunit -c demosuite.xml --testsuite DemoTestSuite
Install SQLEXPRADV_x64_ENU for x64 bit version from here and choose to install all components. This installs SQL Server Management Studio. You can also install Reporting Services with this installation.
/Express with Advanced Services (contains the database engine, Express Tools, Reporting Services, and Full Text Search)/
Download Link: http://www.microsoft.com/en-us/download/details.aspx?id=29062
You may try with below query :
INSERT INTO errortable (dateupdated,table1id)
VALUES (to_date(to_char(sysdate,'dd/mon/yyyy hh24:mi:ss'), 'dd/mm/yyyy hh24:mi:ss' ),1083 );
To view the result of it:
SELECT to_char(hire_dateupdated, 'dd/mm/yyyy hh24:mi:ss')
FROM errortable
WHERE table1id = 1083;
Only justification for moving your application to 64 bit is need for more memory in applications like large databases or ERP applications with at least 100s of concurrent users where 2 GB limit will be exceeded fairly quickly when applications cache for better performance. This is case specially on Windows OS where integer and long is still 32 bit (they have new variable _int64. Only pointers are 64 bit. In fact WOW64 is highly optimised on Windows x64 so that 32 bit applications run with low penalty on 64 bit Windows OS. My experience on Windows x64 is 32 bit application version run 10-15% faster than 64 bit since in former case at least for proprietary memory databases you can use pointer arithmatic for maintaining b-tree (most processor intensive part of database systems). Compuatation intensive applications which require large decimals for highest accuracy not afforded by double on 32-64 bit operating system. These applications can use _int64 in natively instead of software emulation. Of course large disk based databases will also show improvement over 32 bit simply due to ability to use large memory for caching query plans and so on.
There is one another technique to identify your class You can store ref to your class in instance like bellow.
class MyClass {
static myStaticProperty = 'default';
constructor() {
this.__class__ = new.target;
this.showStaticProperty = function() {
console.log(this.__class__.myStaticProperty);
}
}
}
class MyChildClass extends MyClass {
static myStaticProperty = 'custom';
}
let myClass = new MyClass();
let child = new MyChildClass();
myClass.showStaticProperty(); // default
child.showStaticProperty(); // custom
myClass.__class__ === MyClass; // true
child.__class__ === MyClass; // false
child.__class__ === MyChildClass; // true
If you store the padding in resource files, you can simply call
int padding = getResources().getDimensionPixelOffset(R.dimen.padding);
It does the conversion for you.
I'd personally make use of the table.insert
function:
table.insert(a,"b");
This saves you from having to iterate over the whole table therefore saving valuable resources such as memory and time.
"A destructor wouldn't even help you here. It's the event listeners themselves that still reference your object, so it would not be able to get garbage-collected before they are unregistered."
Not so. The purpose of a destructor is to allow the item that registered the listeners to unregister them. Once an object has no other references to it, it will be garbage collected.
For instance, in AngularJS, when a controller is destroyed, it can listen for a destroy event and respond to it. This isn't the same as having a destructor automatically called, but it's close, and gives us the opportunity to remove listeners that were set when the controller was initialized.
// Set event listeners, hanging onto the returned listener removal functions
function initialize() {
$scope.listenerCleanup = [];
$scope.listenerCleanup.push( $scope.$on( EVENTS.DESTROY, instance.onDestroy) );
$scope.listenerCleanup.push( $scope.$on( AUTH_SERVICE_RESPONSES.CREATE_USER.SUCCESS, instance.onCreateUserResponse ) );
$scope.listenerCleanup.push( $scope.$on( AUTH_SERVICE_RESPONSES.CREATE_USER.FAILURE, instance.onCreateUserResponse ) );
}
// Remove event listeners when the controller is destroyed
function onDestroy(){
$scope.listenerCleanup.forEach( remove => remove() );
}
Try This:
<img class="img-responsive" src="assets/img/google-body-ads.png">
You have to change from wb to w:
def __init__(self):
self.myCsv = csv.writer(open('Item.csv', 'wb'))
self.myCsv.writerow(['title', 'link'])
to
def __init__(self):
self.myCsv = csv.writer(open('Item.csv', 'w'))
self.myCsv.writerow(['title', 'link'])
After changing this, the error disappears, but you can't write to the file (in my case). So after all, I don't have an answer?
Source: How to remove ^M
Changing to 'rb' brings me the other error: io.UnsupportedOperation: write
The best method is to wrap the span inside a button and disable the button
$("#buttonD").click(function(){_x000D_
alert("button clicked");_x000D_
})_x000D_
_x000D_
$("#buttonS").click(function(){_x000D_
alert("span clicked");_x000D_
})
_x000D_
<link href="https://stackpath.bootstrapcdn.com/bootstrap/4.1.1/css/bootstrap.min.css" rel="stylesheet" />
_x000D_
<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script><script src="https://stackpath.bootstrapcdn.com/bootstrap/4.1.1/js/bootstrap.min.js"></script>_x000D_
<link href="https://stackpath.bootstrapcdn.com/bootstrap/4.1.1/css/bootstrap.min.css" rel="stylesheet" />_x000D_
_x000D_
_x000D_
<button class="btn btn-success" disabled="disabled" id="buttonD">_x000D_
<span>Disabled button</span>_x000D_
</button>_x000D_
_x000D_
<br>_x000D_
<br>_x000D_
_x000D_
<span class="btn btn-danger" disabled="disabled" id="buttonS">Disabled span</span>
_x000D_
Sorry to bump an old question but the answer is to count the character length of the cell and not its value.
CellCount = Cells(Row, 10).Value
If Len(CellCount) <= "13" Then
'do something
End If
hope that helps. Cheers
get_or_create()
returns a tuple:
customer.source, created = Source.objects.get_or_create(name="Website")
created
? has a boolean value, is created or not.
customer.source
? has an object of get_or_create()
method.
Parse Error: Adjacent JSX elements must be wrapped in an enclosing tag
This means that you are trying to return multiple sibling JSX elements in an incorrect manner. Remember that you are not writing HTML, but JSX! Your code is transpiled from JSX into JavaScript. For example:
render() {
return (<p>foo bar</p>);
}
will be transpiled into:
render() {
return React.createElement("p", null, "foo bar");
}
Unless you are new to programming in general, you already know that functions/methods (of any language) take any number of parameters but always only return one value. Given that, you can probably see that a problem arises when trying to return multiple sibling components based on how createElement()
works; it only takes parameters for one element and returns that. Hence we cannot return multiple elements from one function call.
So if you've ever wondered why this works...
render() {
return (
<div>
<p>foo</p>
<p>bar</p>
<p>baz</p>
</div>
);
}
but not this...
render() {
return (
<p>foo</p>
<p>bar</p>
<p>baz</p>
);
}
it's because in the first snippet, both <p>
-elements are part of children
of the <div>
-element. When they are part of children
then we can express an unlimited number of sibling elements. Take a look how this would transpile:
render() {
return React.createElement(
"div",
null,
React.createElement("p", null, "foo"),
React.createElement("p", null, "bar"),
React.createElement("p", null, "baz"),
);
}
Depending on which version of React you are running, you do have a few options to address this:
As of React v16.2, React has support for Fragments which is a node-less component that returns its children directly.
Returning the children in an array (see below) has some drawbacks:
- Children in an array must be separated by commas.
- Children in an array must have a key to prevent React’s key warning.
- Strings must be wrapped in quotes.
These are eliminated from the use of fragments. Here's an example of children wrapped in a fragment:
render() {
return (
<>
<ChildA />
<ChildB />
<ChildC />
</>
);
}
which de-sugars into:
render() {
return (
<React.Fragment>
<ChildA />
<ChildB />
<ChildC />
</React.Fragment>
);
}
Note that the first snippet requires Babel v7.0 or above.
As of React v16, React Components can return arrays. This is unlike earlier versions of React where you were forced to wrap all sibling components in a parent component.
In other words, you can now do:
render() {
return [<p key={0}>foo</p>, <p key={1}>bar</p>];
}
this transpiles into:
return [React.createElement("p", {key: 0}, "foo"), React.createElement("p", {key: 1}, "bar")];
Note that the above returns an array. Arrays are valid React Elements since React version 16 and later. For earlier versions of React, arrays are not valid return objects!
Also note that the following is invalid (you must return an array):
render() {
return (<p>foo</p> <p>bar</p>);
}
The other solution involves creating a parent component which wraps the sibling components in its children
. This is by far the most common way to address this issue, and works in all versions of React.
render() {
return (
<div>
<h1>foo</h1>
<h2>bar</h2>
</div>
);
}
Note: Take a look again at the top of this answer for more details and how this transpiles.
C++ does not provide any way to do it directly. It would entirely depend on what platforms and libraries that you have.
At worst case, you can use the boost::asio library to establish a TCP connection, send the HTTP headers (RFC 2616), and parse the responses directly. Looking at your application needs, this is simple enough to do.
$table = 'your table name';
$column = 'q6'
$add = mysql_query("ALTER TABLE $table ADD $column VARCHAR( 255 ) NOT NULL");
you can change VARCHAR( 255 ) NOT NULL
into what ever datatype
you want.
Xcode 11+, Swift 5.
According to @WantToKnow answer, I solved my issue, I prepared video and code
[print(i, end = ' ') for i in range(10)]
0 1 2 3 4 5 6 7 8 9
This is a list comprehension method of answer same as @Anubhav
Implicit Wait: During Implicit wait if the Web Driver cannot find it immediately because of its availability, the WebDriver will wait for mentioned time and it will not try to find the element again during the specified time period. Once the specified time is over, it will try to search the element once again the last time before throwing exception. The default setting is zero. Once we set a time, the Web Driver waits for the period of the WebDriver object instance.
Explicit Wait: There can be instance when a particular element takes more than a minute to load. In that case you definitely not like to set a huge time to Implicit wait, as if you do this your browser will going to wait for the same time for every element. To avoid that situation you can simply put a separate time on the required element only. By following this your browser implicit wait time would be short for every element and it would be large for specific element.
If you are using NodeJS, you can use the build-in util function:
import * as util from "util";
util.format('My string: %s', 'foo');
Document can be found here: https://nodejs.org/api/util.html#util_util_format_format_args
I have updated script a little bit to my SQL server version
DECLARE @sql nvarchar(max)
SELECT @sql = 'ALTER TABLE `table_name` DROP CONSTRAINT ' + df.NAME
FROM sys.default_constraints df
INNER JOIN sys.tables t ON df.parent_object_id = t.object_id
INNER JOIN sys.columns c ON df.parent_object_id = c.object_id AND df.parent_column_id = c.column_id
where t.name = 'table_name' and c.name = 'column_name'
EXEC sp_executeSql @sql
GO
ALTER TABLE table_name
DROP COLUMN column_name;
In Ubuntu this works for me, I hope help you:
sudo apt-get install libpq-dev
and
gem install pg -- --with-pg-lib=/usr/lib
Roll back the most recent migration:
rake db:rollback
Roll back the n
most recent migrations:
rake db:rollback STEP=n
You can find full instructions on the use of Rails migration tasks for rake on the Rails Guide for running migrations.
Here's some more:
rake db:migrate
- Run all migrations that haven't been run alreadyrake db:migrate VERSION=20080906120000
- Run all necessary migrations (up or down) to get to the given versionrake db:migrate RAILS_ENV=test
- Run migrations in the given environmentrake db:migrate:redo
- Roll back one migration and run it againrake db:migrate:redo STEP=n
- Roll back the last n
migrations and run them againrake db:migrate:up VERSION=20080906120000
- Run the up
method for the given migrationrake db:migrate:down VERSION=20080906120000
- Run the down
method for the given migrationAnd to answer your question about where you get a migration's version number from:
The version is the numerical prefix on the migration's filename. For example, to migrate to version 20080906120000 run
$ rake db:migrate VERSION=20080906120000
(From Running Migrations in the Rails Guides)
iterator object contains the same number of elements what your collection contained.
List<E> a =...;
Iterator<E> i = a.iterator();
int size = a.size();//Because iterators size is equal to list a's size.
But instead of getting the size of iterator and iterating through index 0 to that size, it is better to iterate through the method next() of the iterator.
You can use gcc/clang's unused attribute, however I use these macros in a header to avoid having gcc specific attributes all over the source, also having __attribute__
everywhere is a bit verbose/ugly.
#ifdef __GNUC__
# define UNUSED(x) UNUSED_ ## x __attribute__((__unused__))
#else
# define UNUSED(x) UNUSED_ ## x
#endif
#ifdef __GNUC__
# define UNUSED_FUNCTION(x) __attribute__((__unused__)) UNUSED_ ## x
#else
# define UNUSED_FUNCTION(x) UNUSED_ ## x
#endif
Then you can do...
void foo(int UNUSED(bar)) { ... }
I prefer this because you get an error if you try use bar
in the code anywhere so you can't leave the attribute in by mistake.
and for functions...
static void UNUSED_FUNCTION(foo)(int bar) { ... }
Note 1):
As far as I know, MSVC doesn't have an equivalent to __attribute__((__unused__))
.
Note 2):
The UNUSED
macro won't work for arguments which contain parenthesis,
so if you have an argument like float (*coords)[3]
you can't do,float UNUSED((*coords)[3])
or float (*UNUSED(coords))[3]
, This is the only downside to the UNUSED
macro I found so far, in these cases I fall back to (void)coords;
For each iteration of the ng-repeat loop, line
is a reference to an object in your array. Therefore, to preview the value, use {{line.text}}
.
Similarly, to databind to the text, databind to the same: ng-model="line.text"
. You don't need to use value
when using ng-model (actually you shouldn't).
For a more in-depth look at scopes and ng-repeat, see What are the nuances of scope prototypal / prototypical inheritance in AngularJS?, section ng-repeat.
swift 3.0 Migration solution given by jasongregori
class ButtonIconRight: UIButton {
override func imageRect(forContentRect contentRect: CGRect) -> CGRect {
var imageFrame = super.imageRect(forContentRect: contentRect)
imageFrame.origin.x = super.titleRect(forContentRect: contentRect).maxX - imageFrame.width
return imageFrame
}
override func titleRect(forContentRect contentRect: CGRect) -> CGRect {
var titleFrame = super.titleRect(forContentRect: contentRect)
if (self.currentImage != nil) {
titleFrame.origin.x = super.imageRect(forContentRect: contentRect).minX
}
return titleFrame
}
Perm space
is used to keep informations for loaded classes and few other advanced features like String Pool
(for highly optimized string equality testing), which usually get created by String.intern()
methods.
As your application(number of classes) will grow this space shall get filled quickly, since the garbage collection on this Space is not much effective to clean up as required, you quickly get Out of Memory : perm gen space error. After then, no application shall run on that machine effectively even after having a huge empty JVM.
Before starting your application you should java -XX:MaxPermSize
to get rid of this error.
The "coef" option of the geom_boxplot function allows to change the outlier cutoff in terms of interquartile ranges. This option is documented for the function stat_boxplot. To deactivate outliers (in other words they are treated as regular data), one can instead of using the default value of 1.5 specify a very high cutoff value:
library(ggplot2)
# generate data with outliers:
df = data.frame(x=1, y = c(-10, rnorm(100), 10))
# generate plot with increased cutoff for outliers:
ggplot(df, aes(x, y)) + geom_boxplot(coef=1e30)
For people where "sys.databases" does not work, You can use this aswell;
SELECT DISTINCT TABLE_SCHEMA from INFORMATION_SCHEMA.COLUMNS
vector<char> toVector( const std::string& s ) {
string s = "apple";
vector<char> v(s.size()+1);
memcpy( &v.front(), s.c_str(), s.size() + 1 );
return v;
}
vector<char> v = toVector(std::string("apple"));
// what you were looking for (mutable)
char* c = v.data();
.c_str() works for immutable. The vector will manage the memory for you.
Here's a simplified example based on of your problem:
if (test)
{//begin scope 1
int y = 1;
}//end scope 1
else
{//begin scope 2
int y = 2;//error, y is not in scope
}//end scope 2
int x = y;//error, y is not in scope
In the above version you have a variable called y
that is confined to scope 1, and another different variable called y
that is confined to scope 2. You then try to refer to a variable named y
after the end of the if
, and not such variable y
can be seen because no such variable exists in that scope.
You solve the problem by placing y
in the outermost scope which contains all references to it:
int y;
if (test)
{
y = 1;
}
else
{
y = 2;
}
int x = y;
I've written the example with simplified made up code to make it clearer for you to understand the issue. You should now be able to apply the principle to your code.
Run this:
Rails.application.eager_load!
Then
ActiveRecord::Base.descendants
To return a list of models/tables
I would like to add a bit more to MadProgrammer's Answer.
In case of multiple line writing, when executing the command
writer.write(string);
one may notice that the newline characters are omitted or skipped in the written file even though they appear during debugging or if the same text is printed onto the terminal with,
System.out.println("\n");
Thus, the whole text comes as one big chunk of text which is undesirable in most cases. The newline character can be dependent on the platform, so it is better to get this character from the java system properties using
String newline = System.getProperty("line.separator");
and then using the newline variable instead of "\n". This will get the output in the way you want it.
I work with a computed property like:
items:{
get(){
return this.resources;
},
set(v){
this.$emit("update:resources", v)
}
},
Resources is in this case a property:
props: [ 'resources' ]
Now I know this question has an accepted answer, but personally, I find it a bit confusing and I believe it should be easier than that. So I'll try to demonstrate how I got it to work as best as I can:
In Windows Forms, there's an event called KeyPress
which is perfectly good for this kind of task. But that doesn't exist in WPF, so instead, we'll be using the PreviewTextInput
event. Also, for the validation, I believe one can use a foreach
to loop through the textbox.Text
and check if it matches ;) the condition, but honestly, this is what regular expressions are for.
One more thing before we dive into the holy code. For the event to be fired, one can do two things:
<PreviewTextInput="textBox_PreviewTextInput/>
Loaded
event of the form (which the textBox is in):
textBox.PreviewTextInput += onlyNumeric;
I think the second method is better because in situations like this, you'll mostly be required to apply the same condition (regex
) to more than one TextBox
and you don't want to repeat yourself!.
Finally, here's how you'd do it:
private void onlyNumeric(object sender, TextCompositionEventArgs e)
{
string onlyNumeric = @"^([0-9]+(.[0-9]+)?)$";
Regex regex = new Regex(onlyNumeric);
e.Handled = !regex.IsMatch(e.Text);
}
You can do this with a LinearLayout or a ScrollView, too. Sometimes it is easier to implement than a RelativeLayout. The only thing you need to do is to add the following view before the Views you want to align to the bottom of the screen:
<View
android:layout_width="wrap_content"
android:layout_height="0dp"
android:layout_weight="1" />
This creates an empty view, filling the empty space and pushing the next views to the bottom of the screen.
I assume you're talking about the Apache server that Oracle installs. Look for the file httpd.conf.
Open this file in a text editor and look for the line
Listen 8080
or
Listen {ip address}:8080
Change the port number and either restart the web server or just reboot the machine.
This is a classic python unicode pain point! Consider the following:
a = u'bats\u00E0'
print a
=> batsà
All good so far, but if we call str(a), let's see what happens:
str(a)
Traceback (most recent call last):
File "<stdin>", line 1, in <module>
UnicodeEncodeError: 'ascii' codec can't encode character u'\xe0' in position 4: ordinal not in range(128)
Oh dip, that's not gonna do anyone any good! To fix the error, encode the bytes explicitly with .encode and tell python what codec to use:
a.encode('utf-8')
=> 'bats\xc3\xa0'
print a.encode('utf-8')
=> batsà
Voil\u00E0!
The issue is that when you call str(), python uses the default character encoding to try and encode the bytes you gave it, which in your case are sometimes representations of unicode characters. To fix the problem, you have to tell python how to deal with the string you give it by using .encode('whatever_unicode'). Most of the time, you should be fine using utf-8.
For an excellent exposition on this topic, see Ned Batchelder's PyCon talk here: http://nedbatchelder.com/text/unipain.html
All the answers here boil down to lengthy and not reader-friendly code: just what the person asking was trying to avoid. To me, was the easiest approach is to employ lambdas here:
new AlertDialog.Builder(this)
.setTitle("Are you sure?")
.setMessage("If you go back you will loose any changes.")
.setPositiveButton("Yes", (dialog, which) -> {
doSomething();
dialog.dismiss();
})
.setNegativeButton("No", (dialog, which) -> dialog.dismiss())
.show();
Lambdas in Android require the retrolambda plugin (https://github.com/evant/gradle-retrolambda), but it's hugely helpful in writing cleaner code anyways.
It may be because of the installation of Cors nuget packages.
If you facing the problem after installing and enabaling cors from nuget , then you may try reinstalling web Api.
From the package manager, run Update-Package Microsoft.AspNet.WebApi -reinstall
Capture the KeyboardInterrupt
(which is launched by pressing ctrl
+c
) and force the exit:
from sys import exit
try:
# Your code
command = input('Type your command: ')
except KeyboardInterrupt:
# User interrupt the program with ctrl+c
exit()
You absolutely need to make a new tuple -- then you can rebind the name (or whatever reference[s]) from the old tuple to the new one. The +=
operator can help (if there was only one reference to the old tuple), e.g.:
thetup += ('1200.00',)
does the appending and rebinding in one fell swoop.
Putting code to the matter, you can do this from the parent window:
var thisIsAnObject = {foo:'bar'};
var w = window.open("http://example.com");
w.myVariable = thisIsAnObject;
or this from the new window:
var myVariable = window.opener.thisIsAnObject;
I prefer the latter, because you will probably need to wait for the new page to load anyway, so that you can access its elements, or whatever you want.
If you are using gcc, you can use the GNU-extension a
specifier to have scanf() allocate memory for you to hold the input:
int main()
{
char *str = NULL;
scanf ("%as", &str);
if (str) {
printf("\"%s\"\n", str);
free(str);
}
return 0;
}
Edit: As Jonathan pointed out, you should consult the scanf
man pages as the specifier might be different (%m
) and you might need to enable certain defines when compiling.
I am assuming that you have enough permissions to create this directory.
To fix your problem, you can either ssh to some other location:
ssh [email protected]
and accept new key - it will create directory ~/.ssh
and known_hosts
underneath, or simply create it manually using
mkdir ~/.ssh
chmod 700 ~/.ssh
Note that chmod 700
is an important step!
After that, ssh-keygen should work without complaints.
You can combine attribute selectors this way:
$("[attr1=val][attr2=val]")...
so that an element has to satisfy both conditions. Of course you can use this for more than two. Also, don't do [type=checkbox]
. jQuery has a selector for that, namely :checkbox
so the end result is:
$("input:checkbox[name=ProductCode]")...
Attribute selectors are slow however so the recommended approach is to use ID and class selectors where possible. You could change your markup to:
<input type="checkbox" class="ProductCode" name="ProductCode"value="396P4">
<input type="checkbox" class="ProductCode" name="ProductCode"value="401P4">
<input type="checkbox" class="ProductCode" name="ProductCode"value="F460129">
allowing you to use the much faster selector of:
$("input.ProductCode")...
The only solution worked for me:
Enjoy! Hope it will be useful!
A merge is always between the current HEAD and one or more commits (usually, branch head or tag),
and the index file must match the tree of HEAD commit (i.e. the contents of the last commit) when it starts out.
In other words,git diff --cached HEAD
must report no changes.The merged commit is already contained in
HEAD
. This is the simplest case, called "Already up-to-date."
That should mean the commits in test are already merged in master, but since other commits are done on master, git diff test
would still give some differences.
var apps = [{id:34,name:'My App',another:'thing'},{id:37,name:'My New App',another:'things'}]
var removeIndex = apps.map(function(item) { return item.id; }).indexOf(37)
apps.splice(removeIndex, 1);
More or less this page has answers but all are not at one place. I was dealing with the same issue and spent quite a good time on it. Now i have a better understanding and i would like to share it here:
I Enabling Swagger ui with Spring websecurity:
If you have enabled Spring Websecurity by default it will block all the requests to your application and returns 401. However for the swagger ui to load in the browser swagger-ui.html makes several calls to collect data. The best way to debug is open swagger-ui.html in a browser(like google chrome) and use developer options('F12' key ). You can see several calls made when the page loads and if the swagger-ui is not loading completely probably some of them are failing.
you may need to tell Spring websecurity to ignore authentication for several swagger path patterns. I am using swagger-ui 2.9.2 and in my case below are the patterns that i had to ignore:
However if you are using a different version your's might change. you may have to figure out yours with developer option in your browser as i said before.
@Configuration
public class WebSecurityConfiguration extends WebSecurityConfigurerAdapter {
@Override
public void configure(WebSecurity web) throws Exception {
web.ignoring().antMatchers("/v2/api-docs", "/configuration/ui",
"/swagger-resources/**", "/configuration/**", "/swagger-ui.html"
, "/webjars/**", "/csrf", "/");
}
}
II Enabling swagger ui with interceptor
Generally you may not want to intercept requests that are made by swagger-ui.html. To exclude several patterns of swagger below is the code:
Most of the cases pattern for web security and interceptor will be same.
@Configuration
@EnableWebMvc
public class RetrieveCiamInterceptorConfiguration implements WebMvcConfigurer {
@Autowired
RetrieveInterceptor validationInterceptor;
@Override
public void addInterceptors(InterceptorRegistry registry) {
registry.addInterceptor(validationInterceptor).addPathPatterns("/**")
.excludePathPatterns("/v2/api-docs", "/configuration/ui",
"/swagger-resources/**", "/configuration/**", "/swagger-ui.html"
, "/webjars/**", "/csrf", "/");
}
@Override
public void addResourceHandlers(ResourceHandlerRegistry registry) {
registry.addResourceHandler("swagger-ui.html")
.addResourceLocations("classpath:/META-INF/resources/");
registry.addResourceHandler("/webjars/**")
.addResourceLocations("classpath:/META-INF/resources/webjars/");
}
}
Since you may have to enable @EnableWebMvc to add interceptors you may also have to add resource handlers to swagger similar to i have done in the above code snippet.
You could use a C function getaddrinfo() to get the numerical address - both ipv4 and ipv6. See the example code here
Map<String, Integer> map = new HashMap<>();
map.put("test1", 1);
map.put("test2", 2);
Map<String, Integer> map2 = new HashMap<>();
map.forEach(map2::put);
System.out.println("map: " + map);
System.out.println("map2: " + map2);
// Output:
// map: {test2=2, test1=1}
// map2: {test2=2, test1=1}
You can use the forEach
method to do what you want.
What you're doing there is:
map.forEach(new BiConsumer<String, Integer>() {
@Override
public void accept(String s, Integer integer) {
map2.put(s, integer);
}
});
Which we can simplify into a lambda:
map.forEach((s, integer) -> map2.put(s, integer));
And because we're just calling an existing method we can use a method reference, which gives us:
map.forEach(map2::put);
This my batch file
C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe C:\Projects\testPublish\testPublish.csproj /p:DeployOnBuild=true /property:Configuration=Release
if exist "C:\PublishDirectory" rd /q /s "C:\PublishDirectory"
C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe -v / -p C:\Projects\testPublish\obj\Release\Package\PackageTmp -c C:\PublishDirectory
cd C:\PublishDirectory\bin
del *.xml
del *.pdb
You can use the command time /t
for the time and date /t
for the date, here is an example:
@echo off
time /t >%tmp%\time.tmp
date /t >%tmp%\date.tmp
set ttime=<%tmp%\time.tmp
set tdate=<%tmp%\date.tmp
del /f /q %tmp%\time.tmp
del /f /q %tmp%\date.tmp
echo Time: %ttime%
echo Date: %tdate%
pause >nul
You can also use the built in variables %time% and %date%, here is another example:
@echo off
echo Time: %time:~0,5%
echo Date: %date%
pause >nul
This question and answer helped me solve a specific problem with signing up new users in Parse.
Because the signUp( attrs, options ) function uses local storage to persist the session, if a user is in private browsing mode it throws the "QuotaExceededError: DOM Exception 22: An attempt was made to add something to storage that exceeded the quota." exception and the success/error functions are never called.
In my case, because the error function is never called it initially appeared to be an issue with firing the click event on the submit or the redirect defined on success of sign up.
Including a warning for users resolved the issue.
Parse Javascript SDK Reference https://parse.com/docs/js/api/classes/Parse.User.html#methods_signUp
Signs up a new user with a username (or email) and password. This will create a new Parse.User on the server, and also persist the session in localStorage so that you can access the user using {@link #current}.
public static void main(String[] args) {
final String xmlStr = "<?xml version=\"1.0\" encoding=\"UTF-8\" standalone=\"yes\"?>\n"+
"<Emp id=\"1\"><name>Pankaj</name><age>25</age>\n"+
"<role>Developer</role><gen>Male</gen></Emp>";
DocumentBuilderFactory factory = DocumentBuilderFactory.newInstance();
DocumentBuilder builder;
try
{
builder = factory.newDocumentBuilder();
Document doc = builder.parse( new InputSource( new StringReader( xmlStr )) );
} catch (Exception e) {
e.printStackTrace();
}
}
As oliver writes:
add_header
works as well withproxy_pass
as without.
However, as Shane writes, as of Nginx 1.7.5, you must pass always
in order to get add_header
to work for error responses, like so:
add_header X-Upstream $upstream_addr always;