This happens because $cOTLdata
is not null but the index 'char_data'
does not exist. Previous versions of PHP may have been less strict on such mistakes and silently swallowed the error / notice while 7.4 does not do this anymore.
To check whether the index exists or not you can use isset():
isset($cOTLdata['char_data'])
Which means the line should look something like this:
$len = isset($cOTLdata['char_data']) ? count($cOTLdata['char_data']) : 0;
Note I switched the then and else cases of the ternary operator since === null is essentially what isset already does (but in the positive case).
I'm Daniel Stenberg.
I founded the curl project back in 1998, I wrote the initial curl version and I created libcurl. I've written more than half of all the 24,000 commits done in the source code repository up to this point in time. I'm still the lead developer of the project. To a large extent, curl is my baby.
I shipped the first version of curl as open source since I wanted to "give back" to the open source world that had given me so much code already. I had used so much open source and I wanted to be as cool as the other open source authors.
Thanks to it being open source, literally thousands of people have been able to help us out over the years and have improved the products, the documentation. the web site and just about every other detail around the project. curl and libcurl would never have become the products that they are today were they not open source. The list of contributors now surpass 1900 names and currently the list grows with a few hundred names per year.
Thanks to curl and libcurl being open source and liberally licensed, they were immediately adopted in numerous products and soon shipped by operating systems and Linux distributions everywhere thus getting a reach beyond imagination.
Thanks to them being "everywhere", available and liberally licensed they got adopted and used everywhere and by everyone. It created a defacto transfer library standard.
At an estimated six billion installations world wide, we can safely say that curl is the most widely used internet transfer library in the world. It simply would not have gone there had it not been open source. curl runs in billions of mobile phones, a billion Windows 10 installations, in a half a billion games and several hundred million TVs - and more.
Should I have released it with proprietary license instead and charged users for it? It never occured to me, and it wouldn't have worked because I would never had managed to create this kind of stellar project on my own. And projects and companies wouldn't have used it.
Now, why do I and my fellow curl developers still continue to develop curl and give it away for free to the world?
Yes. So insanely much.
But I'm not satisfied with this and I'm not just leaning back, happy with what we've done. I keep working on curl every single day, to improve, to fix bugs, to add features and to make sure curl keeps being the number one file transfer solution for the world even going forward.
We do mistakes along the way. We make the wrong decisions and sometimes we implement things in crazy ways. But to win in the end and to conquer the world is about patience and endurance and constantly going back and reconsidering previous decisions and correcting previous mistakes. To continuously iterate, polish off rough edges and gradually improve over time.
Never give in. Never stop. Fix bugs. Add features. Iterate. To the end of time.
Yeah. For real.
Sure I get tired at times. Working on something every day for over twenty years isn't a paved downhill road. Sometimes there are obstacles. During times things are rough. Occasionally people are just as ugly and annoying as people can be.
But curl is my life's project and I have patience. I have thick skin and I don't give up easily. The tough times pass and most days are awesome. I get to hang out with awesome people and the reward is knowing that my code helps driving the Internet revolution everywhere is an ego boost above normal.
curl will never be "done" and so far I think work on curl is pretty much the most fun I can imagine. Yes, I still think so even after twenty years in the driver's seat. And as long as I think it's fun I intend to keep at it.
If you need to work with DTOs rather than entities directly then you should retrieve the existing Customer instance and map the updated fields from the DTO to that.
Customer entity = //load from DB
//map fields from DTO to entity
Tips to make android studio fast:
Enable Offline Work:
Offline work
box.Gradle
) and add --offline
to Command-line Options
text box.Improve Gradle Performance
gradle can be optimized too. The easy way is to modify the settings in global gradle.properties
(create it if not exists in the following folders: Windows - C:\users\your_name\.gradle\
; Linux- /home/<username>/.gradle/
; Mac- /Users/<username>/.gradle/
; ) and in that file, add these two lines:
org.gradle.daemon=true
org.gradle.parallel=true
For More: http://www.viralandroid.com/2015/08/how-to-make-android-studio-fast.html
Getting
java.nio.file.AccessDeniedException
when trying to write to a folder
Unobviously, Comodo antivirus has an "Auto-Containment" setting that can cause this exact error as well. (e.g. the user can write to a location, but the java.exe
and javaw.exe
processes cannot).
In this edge-case scenario, adding an exception for the process and/or folder should help.
Temporarily disabling the antivirus feature will help understand if Comodo AV is the culprit.
I post this not because I use or prefer Comodo, but because it's a tremendously unobvious symptom to an otherwise functioning Java application and can cost many hours of troubleshooting file permissions that are sane and correct, but being blocked by a 3rd-party application.
There are several options and none of them are the official correct way and none of them are really incorrect, though they can convey different information to the computer and to others reading your code.
For the given example I think the clearest option would be to supply an identity default value, in this case do something like:
fooBar <- function(x, y=0) {
x + y
}
This is the shortest of the options shown so far and shortness can help readability (and sometimes even speed in execution). It is clear that what is being returned is the sum of x and y and you can see that y is not given a value that it will be 0 which when added to x will just result in x. Obviously if something more complicated than addition is used then a different identity value will be needed (if one exists).
One thing I really like about this approach is that it is clear what the default value is when using the args
function, or even looking at the help file (you don't need to scroll down to the details, it is right there in the usage).
The drawback to this method is when the default value is complex (requiring multiple lines of code), then it would probably reduce readability to try to put all that into the default value and the missing
or NULL
approaches become much more reasonable.
Some of the other differences between the methods will appear when the parameter is being passed down to another function, or when using the match.call
or sys.call
functions.
So I guess the "correct" method depends on what you plan to do with that particular argument and what information you want to convey to readers of your code.
If you are trying to run shell script, you need run it as bash.
docker exec -it containerid bash -c /path/to/your/script.sh
Ok in this example you are getting duplicates because you are joining both D and S onto M. I assume you should be joining D.id onto S.id like below:
SELECT *
FROM M
INNER JOIN S
on M.Id = S.Id
INNER JOIN D
ON S.Id = D.Id
INNER JOIN H
ON D.Id = H.Id
You have two choices: stash your changes:
git stash
then later to get them back:
git stash apply
or put your changes on a branch so you can get the remote branch and then merge your changes onto it. That's one of the greatest things about git: you can make a branch, commit to it, then fetch other changes on to the branch you were on.
You say it doesn't make any sense, but you are only doing it so you can merge them at will after doing the pull. Obviously your other choice is to commit on your copy of the branch and then do the pull. The presumption is you either don't want to do that (in which case I am puzzled that you don't want a branch) or you are afraid of conflicts.
In the same shell, hold ctrl key and press keys p then q
I got this error message from using an oracle database in a docker despite the fact i had publish port to host option "-p 1521:1521". I was using jdbc url that was using ip address 127.0.0.1, i changed it to the host machine real ip address and everything worked then.
Set
html, body {
height: 100%;
}
Wrap the entire content before the footer in a div.
.wrapper {
height:auto !important;
min-height:100%;
}
You can adjust min-height as you like based on how much of the footer you want to show in the bottom of the browser window. If set it to 90%, 10% of the footer will show before scrolling.
You can do:
setContentPane(new JLabel(new ImageIcon("resources/taverna.jpg")));
At first line of the Jframe class constructor, that works fine for me
We have some generic playbooks that are usable by a large number of teams. We also have environment specific inventory files, that contain multiple group declarations.
To force someone calling a playbook to specify a group to run against, we seed a dummy entry at the top of the playbook:
[ansible-dummy-group]
dummy-server
We then include the following check as a first step in the shared playbook:
- hosts: all
gather_facts: False
run_once: true
tasks:
- fail:
msg: "Please specify a group to run this playbook against"
when: '"dummy-server" in ansible_play_batch'
If the dummy-server shows up in the list of hosts this playbook is scheduled to run against (ansible_play_batch), then the caller didn't specify a group and the playbook execution will fail.
Using David's Instance Storage answer initially worked for me (on a m5d.2xlarge) however, after stopping the EC2 instance and turning it back on, I was unable to ssh in to the instance again.
The instance logs reported: "You are in emergency mode. After logging in, type "journalctl -xb" to view system logs, "systemctl reboot" to reboot, "systemctl default" or "exit" to boot into default mode. Press Enter for maintenance"
I instead followed the AWS instructions in this link and everything worked perfectly, including after turning the instance off and on again.
https://aws.amazon.com/premiumsupport/knowledge-center/ec2-memory-swap-file/
sudo dd if=/dev/zero of=/swapfile bs=1G count=4
sudo chmod 600 /swapfile
sudo mkswap /swapfile
sudo swapon /swapfile
sudo swapon -s
sudo vi /etc/fstab
/swapfile swap swap defaults 0 0
There is actually a much simpler solution. See https://gist.github.com/colindean/5213685/#comment-882885:
"please note that unless you specifically want scp for some reason, the easiest way to transfer files from the host to the VM is to just put them in the same directory as the Vagrantfile - that directory is automatically mounted under /vagrant in the VM so you can copy or use them directly from the VM."
Java has unfortunately no equivalent of async/await. The closest you can get is probably with ListenableFuture from Guava and listener chaining, but it would be still very cumbersome to write for cases involving multiple asynchronous calls, as the nesting level would very quickly grow.
If you're ok with using a different language on top of JVM, fortunately there is async/await in Scala which is a direct C# async/await equivalent with an almost identical syntax and semantics: https://github.com/scala/async/
Note that although this functionality needed a pretty advanced compiler support in C#, in Scala it could be added as a library thanks to a very powerful macro system in Scala and therefore can be added even to older versions of Scala like 2.10. Additionally Scala is class-compatible with Java, so you can write the async code in Scala and then call it from Java.
There is also another similar project called Akka Dataflow http://doc.akka.io/docs/akka/2.3-M1/scala/dataflow.html which uses different wording but conceptually is very similar, however implemented using delimited continuations, not macros (so it works with even older Scala versions like 2.9).
That functionality is already built into Notepad++. From the "Edit" menu, select "EOL Conversion" -> "UNIX/OSX Format".
screenshot of the option for even quicker finding (or different language versions)
You can also set the default EOL in notepad++ via "Settings" -> "Preferences" -> "New Document/Default Directory" then select "Unix/OSX" under the Format box.
You probably don't want to do this:
#include "client.cpp"
A *.cpp file will have been compiled by the compiler as part of your build. By including it in other files, it will be compiled again (and again!) in every file in which you include it.
Now here's the thing: You are guarding it with #ifndef SOCKET_CLIENT_CLASS
, however, each file that has #include "client.cpp"
is built independently and as such will find SOCKET_CLIENT_CLASS
not yet defined. Therefore it's contents will be included, not #ifdef'd out.
If it contains any definitions at all (rather than just declarations) then these definitions will be repeated in every file where it's included.
Adding to the accepted answer, I would say that implementing a correct multi producers / multi consumers queue is difficult (easier since C++11, though)
I would suggest you to try the (very good) lock free boost library, the "queue" structure will do what you want, with wait-free/lock-free guarantees and without the need for a C++11 compiler.
I am adding this answer now because the lock-free library is quite new to boost (since 1.53 I believe)
I think you can use the nrows
parameter. From the docs:
nrows : int, default None
Number of rows of file to read. Useful for reading pieces of large files
which seems to work. Using one of the standard large test files (988504479 bytes, 5344499 lines):
In [1]: import pandas as pd
In [2]: time z = pd.read_csv("P00000001-ALL.csv", nrows=20)
CPU times: user 0.00 s, sys: 0.00 s, total: 0.00 s
Wall time: 0.00 s
In [3]: len(z)
Out[3]: 20
In [4]: time z = pd.read_csv("P00000001-ALL.csv")
CPU times: user 27.63 s, sys: 1.92 s, total: 29.55 s
Wall time: 30.23 s
data.frame[row_number, column_number] = new_value
For example, if x
is your data.frame:
x[1, 4] = 5
I'm assuming you are having at least OSX 10.7, so go ahead into the applications folder (Click on Finder icon > On the Sidebar, you'll find "Applications", click on it ), delete the "Xcode" icon. That will remove Xcode from your system completely. Restart your mac.
Now go to https://developer.apple.com/download/more/ and download an older version of Xcode, as needed and install. You need an Apple ID to login to that portal.
That's because you're using a non-blocking
socket and the output buffer is full.
From the send()
man page
When the message does not fit into the send buffer of the socket,
send() normally blocks, unless the socket has been placed in non-block-
ing I/O mode. In non-blocking mode it would return EAGAIN in this
case.
EAGAIN is the error code tied to "Resource temporarily unavailable"
Consider using select()
to get a better control of this behaviours
The answer mentioned by @HaNdTriX is a great, but we are not sure if DOM is completely loaded in the below code:
var loadTime = window.performance.timing.domContentLoadedEventEnd- window.performance.timing.navigationStart;
This works perfectly when used with onload as:
window.onload = function () {
var loadTime = window.performance.timing.domContentLoadedEventEnd-window.performance.timing.navigationStart;
console.log('Page load time is '+ loadTime);
}
Edit 1: Added some context to answer
Note: loadTime
is in milliseconds, you can divide by 1000 to get seconds as mentioned by @nycynik
Here are 4 ways to insert data into a table.
Simple insertion when the table column sequence is known.
INSERT INTO Table1 VALUES (1,2,...)
Simple insertion into specified columns of the table.
INSERT INTO Table1(col2,col4) VALUES (1,2)
Bulk insertion when...
INSERT INTO Table1 {Column sequence} SELECT * FROM Table2
Bulk insertion of selected data into specified columns of Table2.
.
INSERT INTO Table1 (Column1,Column2 ....)
SELECT Column1,Column2...
FROM Table2
A good option to ping the site on a schedule is to use Microsoft Flow, which is free for up to 750 "runs" per month. It is very easy to create a Flow that hits your site every hour to keep it warm. You can even work around their limit of 750 by creating a single flow with delays separating multiple hits of your site.
Check to see if the Remote Procedure Call (RPC)
service is running. If it is, then it's a firewall issue between your workstation and the server. You can test it by temporary disabling the firewall and retrying the command.
Edit after comment:
Ok, it's a firewall issue. You'll have to either limit the ports WMI/RPC work on, or open a lot of ports in the McAfee firewall.
Here are a few sites that explain this:
go 1.0 includes a http server & util for serving files with a few lines of code.
package main
import (
"fmt"; "log"; "net/http"
)
func main() {
fmt.Println("Serving files in the current directory on port 8080")
http.Handle("/", http.FileServer(http.Dir(".")))
err := http.ListenAndServe(":8080", nil)
if err != nil {
log.Fatal("ListenAndServe: ", err)
}
}
Run this source using go run myserver.go
or to build an executable go build myserver.go
I had DependencyResolutionException
in Ubuntu Linux when I've installed local artifacts via a shell script. The solution was to delete the local artifacts and install them again "manually" - calling mvn install:install-file
via terminal.
i found another solution:
Its 100% guaranteed to work.
The LGoodDatePicker library includes a (swing) DatePicker component, which allows the user to choose dates from a calendar. (By default, the users can also type dates from the keyboard, but keyboard entry can be disabled if desired). The DatePicker has automatic data validation, which means (among other things) that any date that the user enters will always be converted to your desired date format.
Fair disclosure: I'm the primary developer.
Since the DatePicker is a swing component, you can add it to any other swing container including (in your scenario) the cells of a JTable.
The most commonly used date formats are automatically supported, and additional date formats can be added if desired.
To enforce your desired date format, you would most likely want to set your chosen format to be the default "display format" for the DatePicker. Formats can be specified by using the Java 8 DateTimeFormatter Patterns. No matter what the user types (or clicks), the date will always be converted to the specified format as soon as the user is done.
Besides the DatePicker, the library also has the TimePicker and DateTimePicker components. I pasted screenshots of all the components (and the demo program) below.
The library can be installed into your Java project from the project release page.
The project home page is on Github at:
https://github.com/LGoodDatePicker/LGoodDatePicker .
If you don't require support for IE6:
h1 {margin-bottom:20px;}
div + div {margin-top:10px;}
The second line adds spacing between divs, but will not add any before the first div or after the last one.
To bind a UDP socket when receiving multicast means to specify an address and port from which to receive data (NOT a local interface, as is the case for TCP acceptor bind). The address specified in this case has a filtering role, i.e. the socket will only receive datagrams sent to that multicast address & port, no matter what groups are subsequently joined by the socket. This explains why when binding to INADDR_ANY (0.0.0.0) I received datagrams sent to my multicast group, whereas when binding to any of the local interfaces I did not receive anything, even though the datagrams were being sent on the network to which that interface corresponded.
Quoting from UNIX® Network Programming Volume 1, Third Edition: The Sockets Networking API by W.R Stevens. 21.10. Sending and Receiving
[...] We want the receiving socket to bind the multicast group and port, say 239.255.1.2 port 8888. (Recall that we could just bind the wildcard IP address and port 8888, but binding the multicast address prevents the socket from receiving any other datagrams that might arrive destined for port 8888.) We then want the receiving socket to join the multicast group. The sending socket will send datagrams to this same multicast address and port, say 239.255.1.2 port 8888.
I have faced same issue, I resolved by adding "connection: close" as extention,
Step 1: create a new class ConnectionCloseExtension
import com.github.tomakehurst.wiremock.common.FileSource;
import com.github.tomakehurst.wiremock.extension.Parameters;
import com.github.tomakehurst.wiremock.extension.ResponseTransformer;
import com.github.tomakehurst.wiremock.http.HttpHeader;
import com.github.tomakehurst.wiremock.http.HttpHeaders;
import com.github.tomakehurst.wiremock.http.Request;
import com.github.tomakehurst.wiremock.http.Response;
public class ConnectionCloseExtension extends ResponseTransformer {
@Override
public Response transform(Request request, Response response, FileSource files, Parameters parameters) {
return Response.Builder
.like(response)
.headers(HttpHeaders.copyOf(response.getHeaders())
.plus(new HttpHeader("Connection", "Close")))
.build();
}
@Override
public String getName() {
return "ConnectionCloseExtension";
}
}
Step 2: set extension class in wireMockServer like below,
final WireMockServer wireMockServer = new WireMockServer(options()
.extensions(ConnectionCloseExtension.class)
.port(httpPort));
Here is my simple solution:
1 - Define your fragment
public class MyFragment extends Fragment {
private String parameter;
public MyFragment() {
}
public void setParameter(String parameter) {
this.parameter = parameter;
}
}
2 - Create your new fragment and populate the parameter
myfragment = new MyFragment();
myfragment.setParameter("here the value of my parameter");
3 - Enjoy it!
Obviously you can change the type and the number of parameters. Quick and easy.
You can just use the output of is.na
to replace directly with subsetting:
bothbeams.data[is.na(bothbeams.data)] <- 0
Or with a reproducible example:
dfr <- data.frame(x=c(1:3,NA),y=c(NA,4:6))
dfr[is.na(dfr)] <- 0
dfr
x y
1 1 0
2 2 4
3 3 5
4 0 6
However, be careful using this method on a data frame containing factors that also have missing values:
> d <- data.frame(x = c(NA,2,3),y = c("a",NA,"c"))
> d[is.na(d)] <- 0
Warning message:
In `[<-.factor`(`*tmp*`, thisvar, value = 0) :
invalid factor level, NA generated
It "works":
> d
x y
1 0 a
2 2 <NA>
3 3 c
...but you likely will want to specifically alter only the numeric columns in this case, rather than the whole data frame. See, eg, the answer below using dplyr::mutate_if
.
I have tried this code and It's working fine in my case.
DELETE FROM NG_USR_0_CLIENT_GRID_NEW WHERE rowid IN
( SELECT rowid FROM
(
SELECT wi_name, relationship, ROW_NUMBER() OVER (ORDER BY rowid DESC) RN
FROM NG_USR_0_CLIENT_GRID_NEW
WHERE wi_name = 'NB-0000001385-Process'
)
WHERE RN=2
);
When Environment variables are changed log off and log in again so that it will be applied.
Assuming that your current primary key constraint is called pk_history, you can replace the following lines:
ALTER TABLE history ADD PRIMARY KEY (id)
ALTER TABLE history
DROP CONSTRAINT userId
DROP CONSTRAINT name
with these:
ALTER TABLE history DROP CONSTRAINT pk_history
ALTER TABLE history ADD CONSTRAINT pk_history PRIMARY KEY (id)
If you don't know what the name of the PK is, you can find it with the following query:
SELECT *
FROM INFORMATION_SCHEMA.TABLE_CONSTRAINTS
WHERE TABLE_NAME = 'history'
Just make a custom userform that is shown when the "delete" button is pressed, then link the continue button to the actual code that does the deleting. Make the cancel button hide the userform.
As far as I know, that calculator does not offer mod functions. You can however computer it by hand in a fairly straightforward manner. Ex.
(1)50 mod 3
(2)50/3 = 16.66666667
(3)16.66666667 - 16 = 0.66666667
(4)0.66666667 * 3 = 2
Therefore 50 mod 3 = 2
Things to Note: On line 3, we got the "minus 16" by looking at the result from line (2) and ignoring everything after the decimal. The 3 in line (4) is the same 3 from line (1).
Hope that Helped.
Edit As a result of some trials you may get x.99991 which you will then round up to the number x+1.
-XX:PermSize
specifies the initial size that will be allocated during startup of the JVM. If necessary, the JVM will allocate up to -XX:MaxPermSize
.
Is this possible using HttpWebRequest and HttpWebResponse?
You could have your web server simply catch and write the exception text into the body of the response, then set status code to 500. Now the client would throw an exception when it encounters a 500 error but you could read the response stream and fetch the message of the exception.
So you could catch a WebException which is what will be thrown if a non 200 status code is returned from the server and read its body:
catch (WebException ex)
{
using (var stream = ex.Response.GetResponseStream())
using (var reader = new StreamReader(stream))
{
Console.WriteLine(reader.ReadToEnd());
}
}
catch (Exception ex)
{
// Something more serious happened
// like for example you don't have network access
// we cannot talk about a server exception here as
// the server probably was never reached
}
Adding this to your code android:focusableInTouchMode="true"
will make sure that your keypad doesn't appear on startup for your edittext box. You want to add this line to your linear layout that contains the EditTextBox. You should be able to play with this to solve both your problems. I have tested this. Simple solution.
ie: In your app_list_view.xml file
<LinearLayout
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:orientation="vertical"
android:focusableInTouchMode="true">
<EditText
android:id="@+id/filter_edittext"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:hint="Search"
android:inputType="text"
android:maxLines="1"/>
<ListView
android:id="@id/android:list"
android:layout_height="fill_parent"
android:layout_weight="1.0"
android:layout_width="fill_parent"
android:focusable="true"
android:descendantFocusability="beforeDescendants"/>
</LinearLayout>
------------------ EDIT: To Make keyboard appear on startup -----------------------
This is to make they Keyboard appear on the username edittextbox on startup. All I've done is added an empty Scrollview to the bottom of the .xml file, this puts the first edittext into focus and pops up the keyboard. I admit this is a hack, but I am assuming you just want this to work. I've tested it, and it works fine.
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:orientation="vertical"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:paddingLeft="20dip"
android:paddingRight="20dip">
<EditText
android:id="@+id/userName"
android:singleLine="true"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:hint="Username"
android:imeOptions="actionDone"
android:inputType="text"
android:maxLines="1"
/>
<EditText
android:id="@+id/password"
android:password="true"
android:singleLine="true"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:hint="Password" />
<ScrollView
android:id="@+id/ScrollView01"
android:layout_height="fill_parent"
android:layout_width="fill_parent">
</ScrollView>
</LinearLayout>
If you are looking for a more eloquent solution, I've found this question which might help you out, it is not as simple as the solution above but probably a better solution. I haven't tested it but it apparently works. I think it is similar to the solution you've tried which didn't work for you though.
Hope this is what you are looking for.
Cheers!
From your comments,
the tax amount rounded to the 4th decimal and the total price rounded to the 2nd decimal.
Using the example in the comments, I might foresee a case where you have 400 sales of $1.47. Sales-before-tax would be $588.00, and sales-after-tax would sum to $636.51 (accounting for $48.51 in taxes). However, the sales tax of $0.121275 * 400 would be $48.52.
This was one way, albeit contrived, to force a penny's difference.
I would note that there are payroll tax forms from the IRS where they do not care if an error is below a certain amount (if memory serves, $0.50).
Your big question is: does anybody care if certain reports are off by a penny? If the your specs say: yes, be accurate to the penny, then you should go through the effort to convert to DECIMAL.
I have worked at a bank where a one-penny error was reported as a software defect. I tried (in vain) to cite the software specifications, which did not require this degree of precision for this application. (It was performing many chained multiplications.) I also pointed to the user acceptance test. (The software was verified and accepted.)
Alas, sometimes you just have to make the conversion. But I would encourage you to A) make sure that it's important to someone and then B) write tests to show that your reports are accurate to the degree specified.
If you create your test classes in a seperate folder which you then add to your build path,
Then you could make the test class an inner class of the class under test by using package correctly to set the namespace. This gives it access to private fields and methods.
But dont forget to remove the folder from the build path for your release build.
The big problem with this exception is that its usually not reproducible in a test environment and we are not around to run innodb engine status when it happens on prod. So in one of the projects I put the below code into a catch block for this exception. That helped me catch the engine status when the exception happened. That helped a lot.
Statement st = con.createStatement();
ResultSet rs = st.executeQuery("SHOW ENGINE INNODB STATUS");
while(rs.next()){
log.info(rs.getString(1));
log.info(rs.getString(2));
log.info(rs.getString(3));
}
Ctrl-Alt-X is the keyboard shortcut I use, although that may because I have Resharper
installed - otherwise Ctrl W, X.
From the menu: View -> Toolbox.
You can easily view/change key bindings using Tools -> Options Environment->Keyboard. It has a convenient UI where you can enter a word, and it shows you what key bindings include that word, including View.Toolbox
.
You might want to browse through the online MSDN documentation on getting started with Visual Studio.
divclip is an updated version of Florentin Sardan's htmlclipper
with modern enhancements: ES5, HTML5, scoped CSS...
you can programmatically extract a stylized div with:
var html = require("divclip").bySel(".article-body");
console.log(html);
Enjoy.
The Console output is not appearing is because the backend code is not running in the context of the test.
You're probably better off using Trace.WriteLine
(In System.Diagnostics) and then adding a trace listener which writes to a file.
This topic from MSDN shows a way of doing this.
According to Marty Neal's and Dave Anderson's comments:
using System; using System.Diagnostics; ... Trace.Listeners.Add(new TextWriterTraceListener(Console.Out)); // or Trace.Listeners.Add(new ConsoleTraceListener()); Trace.WriteLine("Hello World");
You get this error, when the collection you are trying to iterate is kind of lazy loading (IQueriable).
foreach (var user in _dbContext.Users)
{
}
Converting the IQueriable collection into other enumerable collection will solve this problem. example
_dbContext.Users.ToList()
Note: .ToList() creates a new set every-time and it can cause the performance issue if you are dealing with large data.
This works after you delete the related dependency from your local maven repository
/user/.m2/repository/path
You can disable expandtab option from within Vim as below:
:set expandtab!
or
:set noet
PS: And set it back when you are done with inserting tab, with "set expandtab" or "set et"
PS: If you have tab set equivalent to 4 spaces in .vimrc (softtabstop), you may also like to set it to 8 spaces in order to be able to insert a tab by pressing tab key once instead of twice (set softtabstop=8).
For me, the error message was actually insufficient in the log cat, so here's what I did to figure out what caused the problem:
(In the log cat error message, it said the error occurred while inflating a specific layout in my HomeFragment.java)
Evaluate expression
on it:
Run > Evaluate Expression
or alt - F8
tools:targetApi="lollipop"
(the bug only occurred on older devices).I saw a decent improvement by setting core.preloadindex to true as recommended here.
A Session object is basically an ongoing transaction of changes to a database (update, insert, delete). These operations aren't persisted to the database until they are committed (if your program aborts for some reason in mid-session transaction, any uncommitted changes within are lost).
The session object registers transaction operations with session.add()
, but doesn't yet communicate them to the database until session.flush()
is called.
session.flush()
communicates a series of operations to the database (insert, update, delete). The database maintains them as pending operations in a transaction. The changes aren't persisted permanently to disk, or visible to other transactions until the database receives a COMMIT for the current transaction (which is what session.commit()
does).
session.commit()
commits (persists) those changes to the database.
flush()
is always called as part of a call to commit()
(1).
When you use a Session object to query the database, the query will return results both from the database and from the flushed parts of the uncommitted transaction it holds. By default, Session objects autoflush
their operations, but this can be disabled.
Hopefully this example will make this clearer:
#---
s = Session()
s.add(Foo('A')) # The Foo('A') object has been added to the session.
# It has not been committed to the database yet,
# but is returned as part of a query.
print 1, s.query(Foo).all()
s.commit()
#---
s2 = Session()
s2.autoflush = False
s2.add(Foo('B'))
print 2, s2.query(Foo).all() # The Foo('B') object is *not* returned
# as part of this query because it hasn't
# been flushed yet.
s2.flush() # Now, Foo('B') is in the same state as
# Foo('A') was above.
print 3, s2.query(Foo).all()
s2.rollback() # Foo('B') has not been committed, and rolling
# back the session's transaction removes it
# from the session.
print 4, s2.query(Foo).all()
#---
Output:
1 [<Foo('A')>]
2 [<Foo('A')>]
3 [<Foo('A')>, <Foo('B')>]
4 [<Foo('A')>]
Here is a "minimal" solution.
class SortedArrayList<T> extends ArrayList<T> {
@SuppressWarnings("unchecked")
public void insertSorted(T value) {
add(value);
Comparable<T> cmp = (Comparable<T>) value;
for (int i = size()-1; i > 0 && cmp.compareTo(get(i-1)) < 0; i--)
Collections.swap(this, i, i-1);
}
}
The insert runs in linear time, but that would be what you would get using an ArrayList anyway (all elements to the right of the inserted element would have to be shifted one way or another).
Inserting something non-comparable results in a ClassCastException. (This is the approach taken by PriorityQueue
as well: A priority queue relying on natural ordering also does not permit insertion of non-comparable objects (doing so may result in ClassCastException).)
List.add
Note that overriding List.add
(or List.addAll
for that matter) to insert elements in a sorted fashion would be a direct violation of the interface specification. What you could do, is to override this method to throw an UnsupportedOperationException
.
From the docs of List.add
:
boolean add(E e)
Appends the specified element to the end of this list (optional operation).
Same reasoning applies for both versions of add
, both versions of addAll
and set
. (All of which are optional operations according to the list interface.)
SortedArrayList<String> test = new SortedArrayList<String>();
test.insertSorted("ddd"); System.out.println(test);
test.insertSorted("aaa"); System.out.println(test);
test.insertSorted("ccc"); System.out.println(test);
test.insertSorted("bbb"); System.out.println(test);
test.insertSorted("eee"); System.out.println(test);
....prints:
[ddd]
[aaa, ddd]
[aaa, ccc, ddd]
[aaa, bbb, ccc, ddd]
[aaa, bbb, ccc, ddd, eee]
A simple function in the bash config file (~/.bashrc
often) could work well.
function runx() {
for ((n=0;n<$1;n++))
do ${*:2}
done
}
Call it like this.
$ runx 3 echo 'Hello world'
Hello world
Hello world
Hello world
This worked for our guys (running a slew of Wordpress sites on the same server).
Changed memory settings in the /etc/php.d/apc.ini file. It was set to 64M, so we doubled it to 128M.
apc.shm_size=128M
I'm a mathematician and I have seen and needed big-O O(n)
, big-Theta T(n)
, and big-Omega O(n)
notation time and again, and not just for complexity of algorithms. As people said, big-Theta is a two-sided bound. Strictly speaking, you should use it when you want to explain that that is how well an algorithm can do, and that either that algorithm can't do better or that no algorithm can do better. For instance, if you say "Sorting requires T(n(log n)) comparisons for worst-case input", then you're explaining that there is a sorting algorithm that uses O(n(log n)) comparisons for any input; and that for every sorting algorithm, there is an input that forces it to make O(n(log n)) comparisons.
Now, one narrow reason that people use O instead of O is to drop disclaimers about worst or average cases. If you say "sorting requires O(n(log n)) comparisons", then the statement still holds true for favorable input. Another narrow reason is that even if one algorithm to do X takes time T(f(n)), another algorithm might do better, so you can only say that the complexity of X itself is O(f(n)).
However, there is a broader reason that people informally use O. At a human level, it's a pain to always make two-sided statements when the converse side is "obvious" from context. Since I'm a mathematician, I would ideally always be careful to say "I will take an umbrella if and only if it rains" or "I can juggle 4 balls but not 5", instead of "I will take an umbrella if it rains" or "I can juggle 4 balls". But the other halves of such statements are often obviously intended or obviously not intended. It's just human nature to be sloppy about the obvious. It's confusing to split hairs.
Unfortunately, in a rigorous area such as math or theory of algorithms, it's also confusing not to split hairs. People will inevitably say O when they should have said O or T. Skipping details because they're "obvious" always leads to misunderstandings. There is no solution for that.
As long as you're doing a fast-forward merge, then you can simply use
git fetch <remote> <sourceBranch>:<destinationBranch>
Examples:
# Merge local branch foo into local branch master,
# without having to checkout master first.
# Here `.` means to use the local repository as the "remote":
git fetch . foo:master
# Merge remote branch origin/foo into local branch foo,
# without having to checkout foo first:
git fetch origin foo:foo
While Amber's answer will also work in fast-forward cases, using git fetch
in this way instead is a little safer than just force-moving the branch reference, since git fetch
will automatically prevent accidental non-fast-forwards as long as you don't use +
in the refspec.
You cannot merge a branch B into branch A without checking out A first if it would result in a non-fast-forward merge. This is because a working copy is needed to resolve any potential conflicts.
However, in the case of fast-forward merges, this is possible, because such merges can never result in conflicts, by definition. To do this without checking out a branch first, you can use git fetch
with a refspec.
Here's an example of updating master
(disallowing non-fast-forward changes) if you have another branch feature
checked out:
git fetch upstream master:master
This use-case is so common, that you'll probably want to make an alias for it in your git configuration file, like this one:
[alias]
sync = !sh -c 'git checkout --quiet HEAD; git fetch upstream master:master; git checkout --quiet -'
What this alias does is the following:
git checkout HEAD
: this puts your working copy into a detached-head state. This is useful if you want to update master
while you happen to have it checked-out. I think it was necessary to do with because otherwise the branch reference for master
won't move, but I don't remember if that's really right off-the-top of my head.
git fetch upstream master:master
: this fast-forwards your local master
to the same place as upstream/master
.
git checkout -
checks out your previously checked-out branch (that's what the -
does in this case).
git fetch
for (non-)fast-forward mergesIf you want the fetch
command to fail if the update is non-fast-forward, then you simply use a refspec of the form
git fetch <remote> <remoteBranch>:<localBranch>
If you want to allow non-fast-forward updates, then you add a +
to the front of the refspec:
git fetch <remote> +<remoteBranch>:<localBranch>
Note that you can pass your local repo as the "remote" parameter using .
:
git fetch . <sourceBranch>:<destinationBranch>
From the git fetch
documentation that explains this syntax (emphasis mine):
<refspec>
The format of a
<refspec>
parameter is an optional plus+
, followed by the source ref<src>
, followed by a colon:
, followed by the destination ref<dst>
.The remote ref that matches
<src>
is fetched, and if<dst>
is not empty string, the local ref that matches it is fast-forwarded using<src>
. If the optional plus+
is used, the local ref is updated even if it does not result in a fast-forward update.
Even though the answer is already given here. I just wanted to share this to the world incase the come across such scenario.
My requirement was that i needed to get a user's current location within 30 to 35 seconds at max so here is the solution i made following Nirav Ranpara's Answer.
1. I made MyLocationManager.java class which handles all the GPS and Network stuff
import java.util.concurrent.Executors;
import java.util.concurrent.ScheduledExecutorService;
import java.util.concurrent.TimeUnit;
import com.app.callbacks.OnLocationDetectectionListener;
import android.app.AlertDialog;
import android.content.Context;
import android.content.DialogInterface;
import android.content.Intent;
import android.location.Location;
import android.location.LocationListener;
import android.location.LocationManager;
import android.os.Bundle;
import android.provider.Settings;
import android.util.Log;
import android.widget.Toast;
public class MyLocationManager {
/** The minimum distance to GPS change Updates in meters **/
private final long MIN_DISTANCE_CHANGE_FOR_UPDATES_FOR_GPS = 2; // 2
// meters
/** The minimum time between GPS updates in milliseconds **/
private final long MIN_TIME_BW_UPDATES_OF_GPS = 1000 * 5 * 1; // 5
// seconds
/** The minimum distance to NETWORK change Updates in meters **/
private final long MIN_DISTANCE_CHANGE_FOR_UPDATES_FOR_NETWORK = 5; // 5
// meters
/** The minimum time between NETWORK updates in milliseconds **/
private final long MIN_TIME_BW_UPDATES_OF_NETWORK = 1000 * 10 * 1; // 10
// seconds
/**
* Lets just say i don't trust the first location that the is found. This is
* to avoid that
**/
private int NetworkLocationCount = 0, GPSLocationCount = 0;
private boolean isGPSEnabled;
private boolean isNetworkEnabled;
/**
* Don't do anything if location is being updated by Network or by GPS
*/
private boolean isLocationManagerBusy;
private LocationManager locationManager;
private Location currentLocation;
private Context mContext;
private OnLocationDetectectionListener mListener;
public MyLocationManager(Context mContext,
OnLocationDetectectionListener mListener) {
this.mContext = mContext;
this.mListener = mListener;
}
/**
* Start the location manager to find my location
*/
public void startLocating() {
try {
locationManager = (LocationManager) mContext
.getSystemService(Context.LOCATION_SERVICE);
// Getting GPS status
isGPSEnabled = locationManager
.isProviderEnabled(LocationManager.GPS_PROVIDER);
// Getting network status
isNetworkEnabled = locationManager
.isProviderEnabled(LocationManager.NETWORK_PROVIDER);
if (!isGPSEnabled && !isNetworkEnabled) {
// No network provider is enabled
showSettingsAlertDialog();
} else {
// If GPS enabled, get latitude/longitude using GPS Services
if (isGPSEnabled) {
locationManager.requestLocationUpdates(
LocationManager.GPS_PROVIDER,
MIN_TIME_BW_UPDATES_OF_GPS,
MIN_DISTANCE_CHANGE_FOR_UPDATES_FOR_GPS,
gpsLocationListener);
}
if (isNetworkEnabled) {
locationManager.requestLocationUpdates(
LocationManager.NETWORK_PROVIDER,
MIN_TIME_BW_UPDATES_OF_NETWORK,
MIN_DISTANCE_CHANGE_FOR_UPDATES_FOR_NETWORK,
networkLocationListener);
}
}
/**
* My 30 seconds plan to get myself a location
*/
ScheduledExecutorService se = Executors
.newSingleThreadScheduledExecutor();
se.schedule(new Runnable() {
@Override
public void run() {
if (currentLocation == null) {
if (isGPSEnabled) {
currentLocation = locationManager
.getLastKnownLocation(LocationManager.GPS_PROVIDER);
} else if (isNetworkEnabled) {
currentLocation = locationManager
.getLastKnownLocation(LocationManager.NETWORK_PROVIDER);
}
if (currentLocation != null && mListener != null) {
locationManager.removeUpdates(gpsLocationListener);
locationManager
.removeUpdates(networkLocationListener);
mListener.onLocationDetected(currentLocation);
}
}
}
}, 30, TimeUnit.SECONDS);
} catch (Exception e) {
Log.e("Error Fetching Location", e.getMessage());
Toast.makeText(mContext,
"Error Fetching Location" + e.getMessage(),
Toast.LENGTH_SHORT).show();
}
}
/**
* Handle GPS location listener callbacks
*/
private LocationListener gpsLocationListener = new LocationListener() {
@Override
public void onStatusChanged(String provider, int status, Bundle extras) {
// TODO Auto-generated method stub
}
@Override
public void onProviderEnabled(String provider) {
// TODO Auto-generated method stub
}
@Override
public void onProviderDisabled(String provider) {
// TODO Auto-generated method stub
}
@Override
public void onLocationChanged(Location location) {
if (GPSLocationCount != 0 && !isLocationManagerBusy) {
Log.d("GPS Enabled", "GPS Enabled");
isLocationManagerBusy = true;
currentLocation = location;
locationManager.removeUpdates(gpsLocationListener);
locationManager.removeUpdates(networkLocationListener);
isLocationManagerBusy = false;
if (currentLocation != null && mListener != null) {
mListener.onLocationDetected(currentLocation);
}
}
GPSLocationCount++;
}
};
/**
* Handle Network location listener callbacks
*/
private LocationListener networkLocationListener = new LocationListener() {
@Override
public void onStatusChanged(String provider, int status, Bundle extras) {
// TODO Auto-generated method stub
}
@Override
public void onProviderEnabled(String provider) {
// TODO Auto-generated method stub
}
@Override
public void onProviderDisabled(String provider) {
// TODO Auto-generated method stub
}
@Override
public void onLocationChanged(Location location) {
if (NetworkLocationCount != 0 && !isLocationManagerBusy) {
Log.d("Network", "Network");
isLocationManagerBusy = true;
currentLocation = location;
locationManager.removeUpdates(gpsLocationListener);
locationManager.removeUpdates(networkLocationListener);
isLocationManagerBusy = false;
if (currentLocation != null && mListener != null) {
mListener.onLocationDetected(currentLocation);
}
}
NetworkLocationCount++;
}
};
/**
* Function to show settings alert dialog. On pressing the Settings button
* it will launch Settings Options.
* */
public void showSettingsAlertDialog() {
AlertDialog.Builder alertDialog = new AlertDialog.Builder(mContext);
// Setting Dialog Title
alertDialog.setTitle("GPS is settings");
// Setting Dialog Message
alertDialog
.setMessage("GPS is not enabled. Do you want to go to settings menu?");
// On pressing the Settings button.
alertDialog.setPositiveButton("Settings",
new DialogInterface.OnClickListener() {
@Override
public void onClick(DialogInterface dialog, int which) {
Intent intent = new Intent(
Settings.ACTION_LOCATION_SOURCE_SETTINGS);
mContext.startActivity(intent);
}
});
// On pressing the cancel button
alertDialog.setNegativeButton("Cancel",
new DialogInterface.OnClickListener() {
@Override
public void onClick(DialogInterface dialog, int which) {
dialog.cancel();
}
});
// Showing Alert Message
alertDialog.show();
}
}
2. I made an Interface (callback) OnLocationDetectectionListener.java in order to communicate the results back to the calling fragment or activity
import android.location.Location;
public interface OnLocationDetectectionListener {
public void onLocationDetected(Location mLocation);
}
3. Then i made an MainAppActivty.java Activity that implements OnLocationDetectectionListener
interface and here is how i receive my location in it
public class MainAppActivty extends Activity implements
OnLocationDetectectionListener {
private Location currentLocation;
private MyLocationManager mLocationManager;
@Override
protected void onCreate(Bundle savedInstanceState) {
setContentView(R.layout.activity_home);
super.onCreate(savedInstanceState);
mLocationManager = new MyLocationManager(this, this);
mLocationManager.startLocating();
}
@Override
public void onLocationDetected(Location mLocation) {
//Your new Location is received here
currentLocation = mLocation;
}
4. Add the following permissions to your manifest file
<uses-permission android:name="android.permission.INTERNET" />
<uses-permission android:name="android.permission.ACCESS_FINE_LOCATION" />
Hope this is helpful to others :)
I was very reluctant to choose the path I finally decide to take because of many answers. While they add more understanding to what is SQL and its principles, I decided to become an outlaw. I was also hesitant to post my findings as for some it's more important to vent frustration to someone breaking the rules rather than understanding that there are very few universal truthes.
I have tested it extensively and, in my specific case, it was way more efficient than both using array type (generously offered by PostgreSQL) or querying another table.
Here is my answer: I have successfully implemented a list into a single field in PostgreSQL, by making use of the fixed length of each item of the list. Let say each item is a color as an ARGB hex value, it means 8 char. So you can create your array of max 10 items by multiplying by the length of each item:
ALTER product ADD color varchar(80)
In case your list items length differ you can always fill the padding with \0
NB: Obviously this is not necessarily the best approach for hex number since a list of integers would consume less storage but this is just for the purpose of illustrating this idea of array by making use of a fixed length allocated to each item.
The reason why: 1/ Very convenient: retrieve item i at substring i*n, (i +1)*n. 2/ No overhead of cross tables queries. 3/ More efficient and cost-saving on the server side. The list is like a mini blob that the client will have to split.
While I respect people following rules, many explanations are very theoretical and often fail to acknowledge that, in some specific cases, especially when aiming for cost optimal with low-latency solutions, some minor tweaks are more than welcome.
"God forbid that it is violating some holy sacred principle of SQL": Adopting a more open-minded and pragmatic approach before reciting the rules is always the way to go. Else you might end up like a candid fanatic reciting the Three Laws of Robotics before being obliterated by Skynet
I don't pretend that this solution is a breakthrough, nor that it is ideal in term of readability and database flexibility, but it can certainly give you an edge when it comes to latency.
No, it is not RESTful. The only reason why you should be putting a verb (force_delete
) into the URI is if you would need to overload GET/POST methods in an environment where PUT/DELETE methods are not available. Judging from your use of the DELETE method, this is not the case.
HTTP error code 409/Conflict
should be used for situations where there is a conflict which prevents the RESTful service to perform the operation, but there is still a chance that the user might be able to resolve the conflict himself. A pre-deletion confirmation (where there are no real conflicts which would prevent deletion) is not a conflict per se, as nothing prevents the API from performing the requested operation.
As Alex said (I don't know who downvoted him, he is correct), this should be handled in the UI, because a RESTful service as such just processes requests and should be therefore stateless (i.e. it must not rely on confirmations by holding any server-side information about of a request).
Two examples how to do this in UI would be to:
(*) Please note that HTML versions prior to 5 do not support PUT and DELETE HTTP methods natively, however most modern browsers can do these two methods via AJAX calls. See this thread for details about cross-browser support.
Update (based on additional investigation and discussions):
The scenario where the service would require the force_delete=true
flag to be present violates the uniform interface as defined in Roy Fielding's dissertation. Also, as per HTTP RFC, the DELETE method may be overridden on the origin server (client), implying that this is not done on the target server (service).
So once the service receives a DELETE request, it should process it without needing any additional confirmation (regardless if the service actually performs the operation).
Tested on Ubuntu:
sudo apt install git-extras
git-show-tree
This produces an effect similar to the 2 most upvoted answers here.
Source: http://manpages.ubuntu.com/manpages/bionic/man1/git-show-tree.1.html
Also, if you have arcanist installed (correction: Uber's fork of arcanist installed--see the bottom of this answer here for installation instructions), arc flow
shows a beautiful dependency tree of upstream dependencies (ie: which were set previously via arc flow new_branch
or manually via git branch --set-upstream-to=upstream_branch
).
git branch
you are on too!"Rather than locks, I suggest you look at long-running transactions, using v$transaction
. From there you can join to v$session
, which should give you an idea about the UI (try the program and machine columns) as well as the user.
Typescript for Windows issue
This works in IE, chrome, FF
export const OTP_CLOSE = { 'outcomeCode': 'OTP_CLOSE' };
This works in chrome, FF, Does not work in IE 11
export const OTP_CLOSE = { outcomeCode: 'OTP_CLOSE' };
HTML italic text displays the text in italic format.
<i>HTML italic text example</i>
The emphasis and strong elements can both be used to increase the importance of certain words or sentences.
<p>This is <em>emphasized </em> text format <em>example</em></p>
The emphasis tag should be used when you want to emphasize a point in your text and not necessarily when you want to italicize that text.
See this guide for more: HTML Text Formatting
EDIT: nevermind, Quassnoi has a better answer.
For SQL2K, something like this:
SELECT
Orders.OrderNumber
, LineItems.Quantity
, LineItems.Description
FROM (
SELECT
Orders.OrderID
, Orders.OrderNumber
, FirstLineItemID = (
SELECT TOP 1 LineItemID
FROM LineItems
WHERE LineItems.OrderID = Orders.OrderID
ORDER BY LineItemID -- or whatever else
)
FROM Orders
) Orders
JOIN LineItems
ON LineItems.OrderID = Orders.OrderID
AND LineItems.LineItemID = Orders.FirstLineItemID
If you want to see all commits on all branches that aren't pushed yet, you might be looking for something like this:
git log --branches --not --remotes
And if you only want to see the most recent commit on each branch, and the branch names, this:
git log --branches --not --remotes --simplify-by-decoration --decorate --oneline
Someone is not converting their line-ending characters correctly.
I assume it's the Windows folk as they love their CRLF. Unix loves LF and Mac loved CR until it was shown the Unix way.
First, Latin-1 is the same as ISO-8859-1, so, the default was already OK for you. Right?
You successfully set the encoding to ISO-8859-1 with your command line parameter. You also set it programmatically to "Latin-1", but, that's not a recognized value of a file encoding for Java. See http://java.sun.com/javase/6/docs/technotes/guides/intl/encoding.doc.html
When you do that, looks like Charset resets to UTF-8, from looking at the source. That at least explains most of the behavior.
I don't know why OutputStreamWriter shows ISO8859_1. It delegates to closed-source sun.misc.* classes. I'm guessing it isn't quite dealing with encoding via the same mechanism, which is weird.
But of course you should always be specifying what encoding you mean in this code. I'd never rely on the platform default.
Old thread but I was having this issue and solved it by first grouping the, in my case, option buttons together that were having the issue then simply setting (resetting) the size of this group in an Auto_Open as such:
With ThisWorkbook
.Worksheets("1").Shapes("grpInput").Width = 383.1
.Worksheets("2").Shapes("grpSuite").Width = 383.1
.Worksheets("3").Shapes("grpLoc").Width = 383.1
.Worksheets("4").Shapes("grpDecision").Width = 383.1
End With
public delegate void ThingToTryDeletage();
public static void TryNTimes(ThingToTryDelegate, int N, int sleepTime)
{
while(true)
{
try
{
ThingToTryDelegate();
} catch {
if( --N == 0) throw;
else Thread.Sleep(time);
}
}
This solution creates a div at the actual scrollTop and removes it after changing hash:
$('#menu a').on('click',function(){
//your anchor event here
var href = $(this).attr('href');
window.location.hash = href;
if(window.location.hash == href)return false;
var $jumpTo = $('body').find(href);
$('body').append(
$('<div>')
.attr('id',$jumpTo.attr('id'))
.addClass('fakeDivForHash')
.data('realElementForHash',$jumpTo.removeAttr('id'))
.css({'position':'absolute','top':$(window).scrollTop()})
);
window.location.hash = href;
});
$(window).on('hashchange', function(){
var $fakeDiv = $('.fakeDivForHash');
if(!$fakeDiv.length)return true;
$fakeDiv.data('realElementForHash').attr('id',$fakeDiv.attr('id'));
$fakeDiv.remove();
});
optional, triggering anchor event at page load:
$('#menu a[href='+window.location.hash+']').click();
Also, you can use -o
or --offline
in the mvn command line which will put maven in "offline mode" so it won't check for updates. You'll get some warning about not being able to get dependencies not already in your local repo, but no big deal.
Just another information... Had that problem today on a Windows 2012 R2 x64 TS system where the application was started from a unc/network path. The issue occured for one application for all terminal server users. Executing the application locally worked without problems. After a reboot it started working again - the SEHException's thrown had been Constructor init and TargetInvocationException
Answer by Adamski is a good one and describes the steps in an encoding operation when using the general encode method (that takes a byte buffer as one of the inputs)
However, the method in question (in this discussion) is a variant of encode - encode(CharBuffer in). This is a convenience method that implements the entire encoding operation. (Please see java docs reference in P.S.)
As per the docs, This method should therefore not be invoked if an encoding operation is already in progress (which is what is happening in ZenBlender's code -- using static encoder/decoder in a multi threaded environment).
Personally, I like to use convenience methods (over the more general encode/decode methods) as they take away the burden by performing all the steps under the covers.
ZenBlender and Adamski have already suggested multiple ways options to safely do this in their comments. Listing them all here:
P.S.
java docs references:
I use it because VC++'s Intellisense can't tell when to show private members when accessing out of the class. The only indication is a little "lock" symbol on the field icon in the Intellisense list. It just makes it easier to identify private members(fields) easier. Also a habit from C# to be honest.
class Person {
std::string m_Name;
public:
std::string Name() { return m_Name; }
void SetName(std::string name) { m_Name = name; }
};
int main() {
Person *p = new Person();
p->Name(); // valid
p->m_Name; // invalid, compiler throws error. but intellisense doesn't know this..
return 1;
}
revalidate
is called on a container once new components are added or old ones removed. this call is an instruction to tell the layout manager to reset based on the new component list. revalidate
will trigger a call to repaint what the component thinks are 'dirty regions.' Obviously not all of the regions on your JPanel
are considered dirty by the RepaintManager
.
repaint
is used to tell a component to repaint itself. It is often the case that you need to call this in order to cleanup conditions such as yours.
Here are 4 items, with their index
0 1 2 3
K C A E
You want to move K to between A and E -- you might think position 3. You have be careful about your indexing here, because after the remove, all the indexes get updated.
So you remove item 0 first, leaving
0 1 2
C A E
Then you insert at 3
0 1 2 3
C A E K
To get the correct result, you should have used index 2. To make things consistent, you will need to send to (indexToMoveTo-1) if indexToMoveTo > indexToMove
, e.g.
bool moveUp = (listInstance.IndexOf(itemToMoveTo) > indexToMove);
listInstance.Remove(itemToMove);
listInstance.Insert(indexToMoveTo, moveUp ? (itemToMoveTo - 1) : itemToMoveTo);
This may be related to your problem. Note my code is untested!
EDIT: Alternatively, you could Sort
with a custom comparer (IComparer
) if that's applicable to your situation.
One quick tip, that I got from Detecting access to freed memory is this:
If you want to locate the error quickly, without checking every statement that accesses the memory block, you can set the memory pointer to an invalid value after freeing the block:
#ifdef _DEBUG // detect the access to freed memory #undef free #define free(p) _free_dbg(p, _NORMAL_BLOCK); *(int*)&p = 0x666; #endif
1800 INFORMATION is more or less correct, but there are a few issues I wanted to correct.
boost::shared_mutex _access;
void reader()
{
boost::shared_lock< boost::shared_mutex > lock(_access);
// do work here, without anyone having exclusive access
}
void conditional_writer()
{
boost::upgrade_lock< boost::shared_mutex > lock(_access);
// do work here, without anyone having exclusive access
if (something) {
boost::upgrade_to_unique_lock< boost::shared_mutex > uniqueLock(lock);
// do work here, but now you have exclusive access
}
// do more work here, without anyone having exclusive access
}
void unconditional_writer()
{
boost::unique_lock< boost::shared_mutex > lock(_access);
// do work here, with exclusive access
}
Also Note, unlike a shared_lock, only a single thread can acquire an upgrade_lock at one time, even when it isn't upgraded (which I thought was awkward when I ran into it). So, if all your readers are conditional writers, you need to find another solution.
I'd suggest that it is better practice to use String.format()
. The main reason is that String.format()
can be more easily localised with text loaded from resource files whereas concatenation can't be localised without producing a new executable with different code for each language.
If you plan on your app being localisable you should also get into the habit of specifying argument positions for your format tokens as well:
"Hello %1$s the time is %2$t"
This can then be localised and have the name and time tokens swapped without requiring a recompile of the executable to account for the different ordering. With argument positions you can also re-use the same argument without passing it into the function twice:
String.format("Hello %1$s, your name is %1$s and the time is %2$t", name, time)
I was researching this and decided to do a more in depth test than the one provided by the valid answer.
Here is the code: https://gist.github.com/4368924
and this is my conclusion
I was surprised to find that in most of the run tests the internal initiation was actually faster (almost double in some cases). When working with large numbers the benefit seems to fade away.
Interestingly, the case that creates 3 objects on the loop loses it's benefit rans out sooner than on the other cases. I am not sure why this is happening and more testing should be done to reach any conclusions. Creating concrete implementations may help to avoid the class definition to be reloaded (if that's what's happening)
However, it is clear that not much overhead it observed in most cases for the single item building, even with large numbers.
One set back would be the fact that each of the double brace initiations creates a new class file that adds a whole disk block to the size of our application (or about 1k when compressed). A small footprint, but if it's used in many places it could potentially have an impact. Use this 1000 times and you are potentially adding a whole MiB to you applicaiton, which may be concerning on an embedded environment.
My conclusion? It can be ok to use as long as it is not abused.
Let me know what you think :)
You can use Manifold's @Jailbreak for direct, type-safe Java reflection:
@Jailbreak Foo foo = new Foo();
foo.callMe();
public class Foo {
private void callMe();
}
@Jailbreak
unlocks the foo
local variable in the compiler for direct access to all the members in Foo
's hierarchy.
Similarly you can use the jailbreak() extension method for one-off use:
foo.jailbreak().callMe();
Through the jailbreak()
method you can access any member in Foo
's hierarchy.
In both cases the compiler resolves the method call for you type-safely, as if a public method, while Manifold generates efficient reflection code for you under the hood.
Alternatively, if the type is not known statically, you can use Structural Typing to define an interface a type can satisfy without having to declare its implementation. This strategy maintains type-safety and avoids performance and identity issues associated with reflection and proxy code.
Discover more about Manifold.
THX - for this benchmark code:
My results on array I use for configuration are as fallows:
JSON encoded in 0.0031511783599854 seconds
PHP serialized in 0.0037961006164551 seconds
json_encode()
was roughly 20.47% faster than serialize()
JSON encoded in 0.0070841312408447 seconds
PHP serialized in 0.0035839080810547 seconds
unserialize()
was roughly 97.66% faster than json_encode()
So - test it on your own data.
Try smallR for writing quick R scripts in the command line:
http://code.google.com/p/simple-r/
(r
command in the directory)
Plotting from the command line using smallR would look like this:
r -p file.txt
How about creating machine code at run-time?
My brother once (around 2000) realised an extremely fast real-time ray-tracer by generating code at run-time. I can't remember the details, but there was some kind of main module which was looping through objects, then it was preparing and executing some machine code which was specific to each object.
However, over time, this method was outruled by new graphics hardware, and it became useless.
Today, I think that possibly some operations on big-data (millions of records) like pivot tables, drilling, calculations on-the-fly, etc. could be optimized with this method. The question is: is the effort worth it?
Try the net use command
The file you are editing has been edited with some other editor that does not use the same line endings, resulting in a file with mixed line endings.
The ASCII characters in use for line endings are:
CR, Carriage Return
LF, Line Feed
Windows = CRLF
Mac OS 9 or earlier = CR
Unix = LF
I recall running a program that was creating a huge amount of files at the output. The files were sorted at 30000 per directory. I do not recall having any read problems when I had to reuse the produced output. It was on an 32-bit Ubuntu Linux laptop, and even Nautilus displayed the directory contents, albeit after a few seconds.
ext3 filesystem: Similar code on a 64-bit system dealt well with 64000 files per directory.
I'm using Excel 2003 -
The problem with using conditional formatting here is that you can't reference another worksheet or workbook in your conditions. What you can to do is set some column on sheet 1 equal to the appropriate column on sheet 2 (in your example =Sheet2!B6). I used Column F in my example below. Then you can use conditional formatting. Select the cell at Sheet 1, row , column 1 and then go to the conditional formatting menu. Choose "Formula Is" from the drop down and set the condition to "=$F$6=4". Click on the format button and then choose the Patterns tab. Choose the color you want and you're done.
You can use the format painter tool to apply conditional formatting to other cells, but be aware that by default Excel uses absolute references in the conditions. If you want them to be relative you'll need to remove the dollar signs from the condition.
You can have up to 3 conditions applied to a cell (use the add >> button at the bottom of the Conditional formatting dialog) so if the last row is fixed (for example, you know that it will always be row 10) you can use it as a condition to set the background color to none. Assuming that the last value you care about is in row 10 then (still assuming that you've set column F on sheet1 to the corresponding cells on sheet 2) then set the 1st condition to Formula Is =$F$10="" and the pattern to None. Make it the first condition and it will override any following conflicting statements.
Ahah! Cade is on the money.
An artifact in TOAD prints \r\n
as two placeholder 'blob' characters, but prints a single \r
also as two placeholders. The 1st step toward a solution is to use ..
REPLACE( col_name, CHR(13) || CHR(10) )
.. but I opted for the slightly more robust ..
REPLACE(REPLACE( col_name, CHR(10) ), CHR(13) )
.. which catches offending characters in any order. My many thanks to Cade.
M.
For the problem you're having about the batch file asking the user if the destination is a folder or file, if you know the answer in advance, you can do as such:
If destination is a file: echo f | [batch file path]
If folder: echo d | [batch file path]
It will essentially just pipe the letter after "echo" to the input of the batch file.
I've had this same problem with Windows Workflow Foundation on a build server with TFS2012. Internally, the workflow called Directory.Delete() with the recursive flag set to true. It appears to be network related in our case.
We were deleting a binary drop folder on a network share before re-creating and re-populating it with the latest binaries. Every other build would fail. When opening the drop folder after a failed build, the folder was empty, which indicates that every aspect of the Directory.Delete() call was successful except for deleting the actually directory.
The problem appears to be caused by the asynchronous nature of network file communications. The build server told the file server to delete all of the files and the file server reported that it had, even though it wasn't completely finished. Then the build server requested that the directory be deleted and the file server rejected the request because it hadn't completely finished deleting the files.
Two possible solutions in our case:
The latter method is quick and dirty but seems to do the trick.
Yes, underscores may be used anywhere in an identifier. I believe the rules are: any of a-z, A-Z, _ in the first character and those +0-9 for the following characters.
Underscore prefixes are common in C code -- a single underscore means "private", and double underscores are usually reserved for use by the compiler.
I have IsDBNull in a program which reads a lot of data from a database. With IsDBNull it loads data in about 20 seconds. Without IsDBNull, about 1 second.
So I think it is better to use:
public String TryGetString(SqlDataReader sqlReader, int row)
{
String res = "";
try
{
res = sqlReader.GetString(row);
}
catch (Exception)
{
}
return res;
}
Use this to get an accurate count for each connection pool (assuming each user/host process uses the same connection string)
SELECT
DB_NAME(dbid) as DBName,
COUNT(dbid) as NumberOfConnections,
loginame as LoginName, hostname, hostprocess
FROM
sys.sysprocesses with (nolock)
WHERE
dbid > 0
GROUP BY
dbid, loginame, hostname, hostprocess
These are the steps which i follows may be it is useful for you,
Go to menu-tools-database utilities-compact and repair database.
when repairing database delete or update that record.
it is working finely.
I also had the same problem, I searched for the answers many places. I got many similar answers to change the number of process/service handlers. But I thought, what if I forgot to reset it back?
Then I tried using Thread.sleep()
method after each of my connection.close();
.
I don't know how, but it's working at least for me.
If any one wants to try it out and figure out how it's working then please go ahead. I would also like to know it as I am a beginner in programming world.
If you're serious about handling all of the invalid characters (not just the few "html" ones), and you have access to System.Xml
, here's the simplest way to do proper Xml encoding of value data:
string theTextToEscape = "Something \x1d else \x1D <script>alert('123');</script>";
var x = new XmlDocument();
x.LoadXml("<r/>"); // simple, empty root element
x.DocumentElement.InnerText = theTextToEscape; // put in raw string
string escapedText = x.DocumentElement.InnerXml; // Returns: Something  else  <script>alert('123');</script>
// Repeat the last 2 lines to escape additional strings.
It's important to know that XmlConvert.EncodeName()
is not appropriate, because that's for entity/tag names, not values. Using that would be like Url-encoding when you needed to Html-encode.
I had this function not being recognized as defined in latest Firefox for Linux, though Chromium was dealing fine with it.
What happened in my case was that I had a former SCRIPT
block, before the block that defined the function with problem, stated in the following way:
<SCRIPT src="mycode.js"/>
(That is, without the closing tag.)
I had to redeclare this block in the following way.
<SCRIPT src="mycode.js"></SCRIPT>
And then what followed worked fine... weird huh?
Look if you have another service or program running on the http port. It happened to me when I tried to use the port and it was taken by another program.
Here is some code which extends Object with rad(deg)
, deg(rad)
and also two more useful functions: getAngle(point1,point2)
and getDistance(point1,point2)
where a point needs to have a x
and y
property.
Object.prototype.rad = (deg) => Math.PI/180 * deg;
Object.prototype.deg = (rad) => 180/Math.PI * rad;
Object.prototype.getAngle = (point1, point2) => Math.atan2(point1.y - point2.y, point1.x - point2.x);
Object.prototype.getDistance = (point1, point2) => Math.sqrt(Math.pow(point1.x-point2.x, 2) + Math.pow(point1.y-point2.y, 2));
Get process explorer from sysinternals (now Microsoft)
By their mathematical definition, OR and AND are binary operators; they verify the LHS and RHS conditions regardless, similarly to | and &.
|| and && alter the properties of the OR and AND operators by stopping them when the LHS condition isn't fulfilled.
I've similar problem with MacOS
sed -i '' 's/oldword/newword/' file1.txt
doesn't works, but
sed -i"any_symbol" 's/oldword/newword/' file1.txt
works well.
But why stop with MessageBox-specific implementation? Use the class below like this:
private void OnFormClosing(object sender, FormClosingEventArgs e)
{
DialogResult dg;
using (DialogCenteringService centeringService = new DialogCenteringService(this)) // center message box
{
dg = MessageBox.Show(this, "Are you sure?", "Confirm exit", MessageBoxButtons.YesNo, MessageBoxIcon.Question);
}
if (dg == DialogResult.No)
{
e.Cancel = true;
}
}
The code that you can use with anything that shows dialog windows, even if they're owned by another thread (our app has multiple UI threads):
(Here is the updated code which takes monitor working areas into account, so that the dialog isn't centered between two monitors or is partly off-screen. With it you'll need enum SetWindowPosFlags
, which is below)
public class DialogCenteringService : IDisposable
{
private readonly IWin32Window owner;
private readonly HookProc hookProc;
private readonly IntPtr hHook = IntPtr.Zero;
public DialogCenteringService(IWin32Window owner)
{
if (owner == null) throw new ArgumentNullException("owner");
this.owner = owner;
hookProc = DialogHookProc;
hHook = SetWindowsHookEx(WH_CALLWNDPROCRET, hookProc, IntPtr.Zero, GetCurrentThreadId());
}
private IntPtr DialogHookProc(int nCode, IntPtr wParam, IntPtr lParam)
{
if (nCode < 0)
{
return CallNextHookEx(hHook, nCode, wParam, lParam);
}
CWPRETSTRUCT msg = (CWPRETSTRUCT)Marshal.PtrToStructure(lParam, typeof(CWPRETSTRUCT));
IntPtr hook = hHook;
if (msg.message == (int)CbtHookAction.HCBT_ACTIVATE)
{
try
{
CenterWindow(msg.hwnd);
}
finally
{
UnhookWindowsHookEx(hHook);
}
}
return CallNextHookEx(hook, nCode, wParam, lParam);
}
public void Dispose()
{
UnhookWindowsHookEx(hHook);
}
private void CenterWindow(IntPtr hChildWnd)
{
Rectangle recChild = new Rectangle(0, 0, 0, 0);
bool success = GetWindowRect(hChildWnd, ref recChild);
if (!success)
{
return;
}
int width = recChild.Width - recChild.X;
int height = recChild.Height - recChild.Y;
Rectangle recParent = new Rectangle(0, 0, 0, 0);
success = GetWindowRect(owner.Handle, ref recParent);
if (!success)
{
return;
}
Point ptCenter = new Point(0, 0);
ptCenter.X = recParent.X + ((recParent.Width - recParent.X) / 2);
ptCenter.Y = recParent.Y + ((recParent.Height - recParent.Y) / 2);
Point ptStart = new Point(0, 0);
ptStart.X = (ptCenter.X - (width / 2));
ptStart.Y = (ptCenter.Y - (height / 2));
//MoveWindow(hChildWnd, ptStart.X, ptStart.Y, width, height, false);
Task.Factory.StartNew(() => SetWindowPos(hChildWnd, (IntPtr)0, ptStart.X, ptStart.Y, width, height, SetWindowPosFlags.SWP_ASYNCWINDOWPOS | SetWindowPosFlags.SWP_NOSIZE | SetWindowPosFlags.SWP_NOACTIVATE | SetWindowPosFlags.SWP_NOOWNERZORDER | SetWindowPosFlags.SWP_NOZORDER));
}
// some p/invoke
// ReSharper disable InconsistentNaming
public delegate IntPtr HookProc(int nCode, IntPtr wParam, IntPtr lParam);
public delegate void TimerProc(IntPtr hWnd, uint uMsg, UIntPtr nIDEvent, uint dwTime);
private const int WH_CALLWNDPROCRET = 12;
// ReSharper disable EnumUnderlyingTypeIsInt
private enum CbtHookAction : int
// ReSharper restore EnumUnderlyingTypeIsInt
{
// ReSharper disable UnusedMember.Local
HCBT_MOVESIZE = 0,
HCBT_MINMAX = 1,
HCBT_QS = 2,
HCBT_CREATEWND = 3,
HCBT_DESTROYWND = 4,
HCBT_ACTIVATE = 5,
HCBT_CLICKSKIPPED = 6,
HCBT_KEYSKIPPED = 7,
HCBT_SYSCOMMAND = 8,
HCBT_SETFOCUS = 9
// ReSharper restore UnusedMember.Local
}
[DllImport("kernel32.dll")]
static extern int GetCurrentThreadId();
[DllImport("user32.dll")]
private static extern bool GetWindowRect(IntPtr hWnd, ref Rectangle lpRect);
[DllImport("user32.dll")]
private static extern int MoveWindow(IntPtr hWnd, int X, int Y, int nWidth, int nHeight, bool bRepaint);
[DllImport("user32.dll")]
[return: MarshalAs(UnmanagedType.Bool)]
private static extern bool SetWindowPos(IntPtr hWnd, IntPtr hWndInsertAfter, int x, int y, int cx, int cy, SetWindowPosFlags uFlags);
[DllImport("User32.dll")]
public static extern UIntPtr SetTimer(IntPtr hWnd, UIntPtr nIDEvent, uint uElapse, TimerProc lpTimerFunc);
[DllImport("User32.dll")]
public static extern IntPtr SendMessage(IntPtr hWnd, int Msg, IntPtr wParam, IntPtr lParam);
[DllImport("user32.dll")]
public static extern IntPtr SetWindowsHookEx(int idHook, HookProc lpfn, IntPtr hInstance, int threadId);
[DllImport("user32.dll")]
public static extern int UnhookWindowsHookEx(IntPtr idHook);
[DllImport("user32.dll")]
public static extern IntPtr CallNextHookEx(IntPtr idHook, int nCode, IntPtr wParam, IntPtr lParam);
[DllImport("user32.dll")]
public static extern int GetWindowTextLength(IntPtr hWnd);
[DllImport("user32.dll")]
public static extern int GetWindowText(IntPtr hWnd, StringBuilder text, int maxLength);
[DllImport("user32.dll")]
public static extern int EndDialog(IntPtr hDlg, IntPtr nResult);
[StructLayout(LayoutKind.Sequential)]
public struct CWPRETSTRUCT
{
public IntPtr lResult;
public IntPtr lParam;
public IntPtr wParam;
public uint message;
public IntPtr hwnd;
};
// ReSharper restore InconsistentNaming
}
[Flags]
public enum SetWindowPosFlags : uint
{
// ReSharper disable InconsistentNaming
/// <summary>
/// If the calling thread and the thread that owns the window are attached to different input queues, the system posts the request to the thread that owns the window. This prevents the calling thread from blocking its execution while other threads process the request.
/// </summary>
SWP_ASYNCWINDOWPOS = 0x4000,
/// <summary>
/// Prevents generation of the WM_SYNCPAINT message.
/// </summary>
SWP_DEFERERASE = 0x2000,
/// <summary>
/// Draws a frame (defined in the window's class description) around the window.
/// </summary>
SWP_DRAWFRAME = 0x0020,
/// <summary>
/// Applies new frame styles set using the SetWindowLong function. Sends a WM_NCCALCSIZE message to the window, even if the window's size is not being changed. If this flag is not specified, WM_NCCALCSIZE is sent only when the window's size is being changed.
/// </summary>
SWP_FRAMECHANGED = 0x0020,
/// <summary>
/// Hides the window.
/// </summary>
SWP_HIDEWINDOW = 0x0080,
/// <summary>
/// Does not activate the window. If this flag is not set, the window is activated and moved to the top of either the topmost or non-topmost group (depending on the setting of the hWndInsertAfter parameter).
/// </summary>
SWP_NOACTIVATE = 0x0010,
/// <summary>
/// Discards the entire contents of the client area. If this flag is not specified, the valid contents of the client area are saved and copied back into the client area after the window is sized or repositioned.
/// </summary>
SWP_NOCOPYBITS = 0x0100,
/// <summary>
/// Retains the current position (ignores X and Y parameters).
/// </summary>
SWP_NOMOVE = 0x0002,
/// <summary>
/// Does not change the owner window's position in the Z order.
/// </summary>
SWP_NOOWNERZORDER = 0x0200,
/// <summary>
/// Does not redraw changes. If this flag is set, no repainting of any kind occurs. This applies to the client area, the nonclient area (including the title bar and scroll bars), and any part of the parent window uncovered as a result of the window being moved. When this flag is set, the application must explicitly invalidate or redraw any parts of the window and parent window that need redrawing.
/// </summary>
SWP_NOREDRAW = 0x0008,
/// <summary>
/// Same as the SWP_NOOWNERZORDER flag.
/// </summary>
SWP_NOREPOSITION = 0x0200,
/// <summary>
/// Prevents the window from receiving the WM_WINDOWPOSCHANGING message.
/// </summary>
SWP_NOSENDCHANGING = 0x0400,
/// <summary>
/// Retains the current size (ignores the cx and cy parameters).
/// </summary>
SWP_NOSIZE = 0x0001,
/// <summary>
/// Retains the current Z order (ignores the hWndInsertAfter parameter).
/// </summary>
SWP_NOZORDER = 0x0004,
/// <summary>
/// Displays the window.
/// </summary>
SWP_SHOWWINDOW = 0x0040,
// ReSharper restore InconsistentNaming
}
On OSX 10.8 and on, the control for MySQL is available from the System Configs. Open System Preferences, click on Mysql (usually on the very bottom) and start/stop the service from that pane. https://dev.mysql.com/doc/refman/5.6/en/osx-installation-launchd.html
The plist file is now under /Library/LaunchDaemons/com.oracle.oss.mysql.mysqld.plist
I think this solution is less complex than the others written here:
<EditText
android:inputType="numberDecimal"
android:digits="0123456789," />
This way when you press the '.' in the soft keyboard nothing happens; only numbers and comma are allowed.
I had this problem with 2.7 and 3.5 installed on my system trying to test a telegram bot with Python-Telegram-Bot.
I couldn't get it to work after installing with pip and pip3, with sudo or without. I always got:
Traceback (most recent call last):
File "telegram.py", line 2, in <module>
from telegram.ext import Updater
File "$USER/telegram.py", line 2, in <module>
from telegram.ext import Updater
ImportError: No module named 'telegram.ext'; 'telegram' is not a package
Reading the error message correctly tells me that python is looking in the current directory for a telegram.py
. And right, I had a script lying there called telegram.py and this was loaded by python when I called import
.
Conclusion, make sure you don't have any package.py
in your current working dir when trying to import. (And read error message thoroughly).
Recently when working on a web app for a client, I noticed that any click events added to a non-anchor element didn't work on the iPad or iPhone. All desktop and other mobile devices worked fine - but as the Apple products are the most popular mobile devices, it was important to get it fixed.
Turns out that any non-anchor element assigned a click handler in jQuery must either have an onClick attribute (can be empty like below):
onClick=""
OR
The element css needs to have the following declaration:
cursor:pointer
Strange, but that's what it took to get things working again!
source:http://www.mitch-solutions.com/blog/17-ipad-jquery-live-click-events-not-working
As with many questions lately, Java 8 to the rescue:
Java 8 added a new static method to java.lang.String
which does exactly what you want:
public static String join(CharSequence delimeter, CharSequence... elements);
Using it:
String s = String.join(", ", new String[] {"Hello", "World", "!"});
Results in:
"Hello, World, !"
Use the following in the function you will call and it will work just fine.
[a b c] = yourfunction(optional)
%your code
a = 5;
b = 7;
c = 10;
return
end
This is a way to call the function both from another function and from the command terminal
[aa bb cc] = yourfunction(optional);
The variables aa, bb and cc now hold the return variables.
I'm assuming you want floats not just integers so I'd do something like this:
l = []
for t in s.split():
try:
l.append(float(t))
except ValueError:
pass
Note that some of the other solutions posted here don't work with negative numbers:
>>> re.findall(r'\b\d+\b', 'he33llo 42 I\'m a 32 string -30')
['42', '32', '30']
>>> '-3'.isdigit()
False
Since seotweaks
was originally created as a branch from master
, merging it back in is a good idea. However if you are in a situation where one of your branches is not really a branch from master
or your history is so different that you just want to obliterate the master
branch in favor of the new branch that you've been doing the work on you can do this:
git push [-f] origin seotweaks:master
This is especially helpful if you are getting this error:
! [remote rejected] master (deletion of the current branch prohibited)
And you are not using GitHub and don't have access to the "Administration" tab to change the default branch for your remote repository. Furthermore, this won't cause down time or race conditions as you may encounter by deleting master:
git push origin :master
You can use two way
1) if ( val == null )
2) if ( val === undefine )
This thread is a little old but this worked for me:
numberString = "onetwothreefourfivesixseveneightninefiveten"
testString = "five"
marker = 0
while marker < len(numberString):
try:
print(numberString.index("five",marker))
marker = numberString.index("five", marker) + 1
except ValueError:
print("String not found")
marker = len(numberString)
You can do it with CSS:
<iframe style="position: absolute; height: 100%; border: none"></iframe>
Be aware that this will by default place it in the upper-left corner of the page, but I guess that is what you want to achieve. You can position with the left
,right
, top
and bottom
CSS properties.
$ svn log | head -10
on whatever directory that has a .svn
folder
In design patterns there is a principle called "favouring composition over inheritance". It says instead of inheriting Class B from Class A ,put an instance of class A inside class B as a property and then you can use functionalities of class A inside class B. You can see some examples of that here and here.
<h2 [ngStyle]="serverStatus == 'Offline'? {'color': 'red'{'color':'green'}">Server with ID: {{serverId}} is {{getServerStatus()}} </h2>
or you can also use something like this:
<h2 [ngStyle]="{backgroundColor: getColor()}">Server with ID: {{serverId}} is {{getServerStatus()}}</h2>
and in the *.ts
getColor(){return this.serverStatus === 'Offline' ? 'red' : 'green';}
Should not enclose true with double quote " " it should be like
$(document).ready(function() {
$('input').attr('required', true);
});
Also you can use prop
jQuery(document).ready(function() {
$('input').prop('required', true);
});
Instead of true you can try required. Such as
$('input').prop('required', 'required');
This is a perfect example of where you should use a javascript library like Prototype or JQuery to abstract away the cross-browser differences.
I'm running Qt 5.5 under Windows and the default constructor of QDir appears to pick up the current working directory, not the application directory.
I'm not sure if the getenv PWD will work cross-platform and I think it is set to the current working directory when the shell launched the application and doesn't include any working directory changes done by the app itself (which might be why the OP is seeing this behavior).
So I thought I'd add some other ways that should give you the current working directory (not the application's binary location):
// using where a relative filename will end up
QFileInfo fi("temp");
cout << fi.absolutePath() << endl;
// explicitly using the relative name of the current working directory
QDir dir(".");
cout << dir.absolutePath() << endl;
You are returning the address of a local variable, which no longer exists when the thread function exits. In any case, why call pthread_exit? why not simply return a value from the thread function?
void *myThread()
{
return (void *) 42;
}
and then in main:
printf("%d\n",(int)status);
If you need to return a complicated value such a structure, it's probably easiest to allocate it dynamically via malloc() and return a pointer. Of course, the code that initiated the thread will then be responsible for freeing the memory.
$objPHPExcel
->getActiveSheet()
->getStyle('A1')
->getFill()
->setFillType(PHPExcel_Style_Fill::FILL_SOLID)
->getStartColor()
->setRGB('colorcode'); //i.e,colorcode=D3D3D3
Another way to understand the relationship between these concepts is to interpret a ROLE as a container of Authorities.
Authorities are fine-grained permissions targeting a specific action coupled sometimes with specific data scope or context. For instance, Read, Write, Manage, can represent various levels of permissions to a given scope of information.
Also, authorities are enforced deep in the processing flow of a request while ROLE are filtered by request filter way before reaching the Controller. Best practices prescribe implementing the authorities enforcement past the Controller in the business layer.
On the other hand, ROLES are coarse grained representation of an set of permissions. A ROLE_READER would only have Read or View authority while a ROLE_EDITOR would have both Read and Write. Roles are mainly used for a first screening at the outskirt of the request processing such as http. ... .antMatcher(...).hasRole(ROLE_MANAGER)
The Authorities being enforced deep in the request's process flow allows a finer grained application of the permission. For instance, a user may have Read Write permission to first level a resource but only Read to a sub-resource. Having a ROLE_READER would restrain his right to edit the first level resource as he needs the Write permission to edit this resource but a @PreAuthorize interceptor could block his tentative to edit the sub-resource.
Jake
You may have a look at these slides from the last italian pycon (pdf): The author listed most of the library for doing scraping and autoted browsing in python. so you may have a look at it.
I like very much twill (which has already been suggested), which has been developed by one of the authors of nose and it is specifically aimed at testing web sites.
scaleLabel : "<%= Number(value).toFixed(2).replace('.', ',') + ' $'%>"
If you're using Guava, you can take a functional approach and do the following
FluentIterable.from(list).find(new Predicate<MyObject>() {
public boolean apply(MyObject input) {
return "John".equals(input.getName());
}
}).Any();
which looks a little verbose. However the predicate is an object and you can provide different variants for different searches. Note how the library itself separates the iteration of the collection and the function you wish to apply. You don't have to override equals()
for a particular behaviour.
As noted below, the java.util.Stream framework built into Java 8 and later provides something similar.
You could always create an intermediate class/interface that would satisfy the generic type that you are wanting to specify. For example, if Foo was an interface, you could create the following interface in your test class.
private interface FooBar extends Foo<Bar>
{
}
In situations where Foo is a non-final class, you could just extend the class with the following code and do the same thing:
public class FooBar extends Foo<Bar>
{
}
Then you could consume either of the above examples with the following code:
Foo<Bar> mockFoo = mock(FooBar.class);
when(mockFoo.getValue()).thenReturn(new Bar());
vector<T>::const_iterator first = myVec.begin() + 100000;
vector<T>::const_iterator last = myVec.begin() + 101000;
vector<T> newVec(first, last);
It's an O(N) operation to construct the new vector, but there isn't really a better way.
For Tomcat 8.5.x users
You've to change the ServerInfo.properties
file of Tomcat's /lib/catalina.jar
file.
ServerInfo.properties
file contains the following code
server.info=Apache Tomcat/8.5.4
server.number=8.5.4.0
server.built=Jul 6 2016 08:43:30 UTC
Just open the ServerInfo.properties
file by opening the catalina.jar
with winrar from your Tomcat's lib folder
ServerInfo.properties
file location in catalina.jar
is /org/apache/catalina/util/ServerInfo.properties
Notice : shutdown
the Tomcat server(if it's already opened by cmd) before doing these things otherwise your file doesn't change and your winrar shows error.
Then change the following code in ServerInfo.properties
server.info=Apache Tomcat/8.0.8.5.4
server.number=8.5.4.0
server.built=Jul 6 2016 08:43:30 UTC
Restart your eclipse(if opened). Now it'll work...
If the form starts up first, in the form Load handler we can instantiate a copy of our class. We can have properties that reference whichever controls we want to reference. Pass the reference to the form 'this' to the constructor for the class.
public partial class Form1 : Form
{
public ListView Lv
{
get { return lvProcesses; }
}
public Form1()
{
InitializeComponent();
}
private void Form1_Load(object sender, EventArgs e)
{
Utilities ut = new Utilities(this);
}
}
In your class, the reference from the form is passed into the constructor and stored as a private member. This form reference can be used to access the form's properties.
class Utilities
{
private Form1 _mainForm;
public Utilities(Form1 mainForm)
{
_mainForm = mainForm;
_mainForm.Lv.Items.Clear();
}
}
If the file that this script lives in is executable, the hash-bang (#!
) tells the operating system what interpreter to use to run the script. In this case it's /bin/sh
, for example.
There's a Wikipedia article about it for more information.
You can create a function on the Number prototype
Number.prototype.format = function (s, d) {
return (
this.toString()
.split(".")
.map((n, i) =>
i
? n
: n
.split("")
.map((n, i) => (i % 3 || !i ? n : s + n))
.join("")
)
.join(d)
);
};
console.log((8800.00).format(',', '.'))
// 8,880.00
// French notation
console.log((8800.00).format(' ', ','))
// 8 880,00
In order to detect mouseleave without taking in account the scroll bar and the autcomplete field or inspect :
document.addEventListener("mouseleave", function(event){
if(event.clientY <= 0 || event.clientX <= 0 || (event.clientX >= window.innerWidth || event.clientY >= window.innerHeight))
{
console.log("I'm out");
}
});
Conditions explanations:
event.clientY <= 0 is when the mouse leave from the top
event.clientX <= 0 is when the mouse leave from the left
event.clientX >= window.innerWidth is when the mouse leave from the right
event.clientY >= window.innerHeight is when the mouse leave from the bottom
======================== EDIT ===============================
document.addEventListener("mouseleave") seems to be not fired on new firefox version, mouseleave need to be attached to an element like body, or a child element.
I suggest to use instead
document.body.addEventListener("mouseleave")
Or
window.addEventListener("mouseout")
You can also use Ticks. I'm coding for Windows Mobile so don't have the full set of methods. TotalSeconds is not available to me.
long epochTicks = new DateTime(1970, 1, 1).Ticks;
long unixTime = ((DateTime.UtcNow.Ticks - epochTicks) / TimeSpan.TicksPerSecond);
or
TimeSpan epochTicks = new TimeSpan(new DateTime(1970, 1, 1).Ticks);
TimeSpan unixTicks = new TimeSpan(DateTime.UtcNow.Ticks) - epochTicks;
double unixTime = unixTicks.TotalSeconds;
Select-Object returns a custom PSObject with just the properties specified. Even with a single property, you don't get the ACTUAL variable; it is wrapped inside the PSObject.
Instead, do:
Get-Date | Select-Object -ExpandProperty DayOfWeek
That will get you the same result as:
(Get-Date).DayOfWeek
The difference is that if Get-Date returns multiple objects, the pipeline way works better than the parenthetical way as (Get-ChildItem)
, for example, is an array of items. This has changed in PowerShell v3 and (Get-ChildItem).FullPath
works as expected and returns an array of just the full paths.
Move the queue to self instead of as an argument to your functions package
and send
Kotlin's Answer with initial reference from https://stackoverflow.com/a/51024552/3286489, but with improved version by tidying up codes and provides 2 versions of it, and use immutable collection operations
Use java.net.URI
to extract the Query. Then use the below provided extension functions
page2&page3
will get {page=3}
, use the below extension function fun URI.getQueryMap(): Map<String, String> {
if (query == null) return emptyMap()
return query.split("&")
.mapNotNull { element -> element.split("=")
.takeIf { it.size == 2 && it.none { it.isBlank() } } }
.associateBy({ it[0].decodeUTF8() }, { it[1].decodeUTF8() })
}
private fun String.decodeUTF8() = URLDecoder.decode(this, "UTF-8") // decode page=%22ABC%22 to page="ABC"
page2&page3
will get {page=[2, 3]}
fun URI.getQueryMapList(): Map<String, List<String>> {
if (query == null) return emptyMap()
return query.split("&")
.distinct()
.mapNotNull { element -> element.split("=")
.takeIf { it.size == 2 && it.none { it.isBlank() } } }
.groupBy({ it[0].decodeUTF8() }, { it[1].decodeUTF8() })
}
private fun String.decodeUTF8() = URLDecoder.decode(this, "UTF-8") // decode page=%22ABC%22 to page="ABC"
The way to use it as below
val uri = URI("schema://host/path/?page=&page=2&page=2&page=3")
println(uri.getQueryMapList()) // Result is {page=[2, 3]}
println(uri.getQueryMap()) // Result is {page=3}
Are you using Angular? If you are it is possible that the webdriver doesn't recognize that the async calls have finished.
I recommend looking at Paul Hammants ngWebDriver. The method waitForAngularRequestsToFinish() could come in handy.
Starting from PHP 7.3, there is a new built in function called array_key_first()
which will retrieve the first key from the given array without resetting the internal pointer. Check out the documentation for more info.
reset($array);
$first_key = key($array);
It's essentially the same as your initial code, but with a little less overhead, and it's more obvious what is happening.
Just remember to call reset
, or you may get any of the keys in the array. You can also use end
instead of reset
to get the last key.
If you wanted the key to get the first value, reset
actually returns it:
$first_value = reset($array);
There is one special case to watch out for though (so check the length of the array first):
$arr1 = array(false);
$arr2 = array();
var_dump(reset($arr1) === reset($arr2)); // bool(true)
To avoid deprecated code and warnings you can use:
view.getViewTreeObserver().addOnGlobalLayoutListener(
new ViewTreeObserver.OnGlobalLayoutListener() {
@SuppressWarnings("deprecation")
@Override
public void onGlobalLayout() {
if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.JELLY_BEAN) {
view.getViewTreeObserver()
.removeOnGlobalLayoutListener(this);
} else {
view.getViewTreeObserver()
.removeGlobalOnLayoutListener(this);
}
yourFunctionHere();
}
});
Reminder: If you do combine multiple contexts make sure you cut n paste all the functionality in your various RealContexts.OnModelCreating()
into your single CombinedContext.OnModelCreating()
.
I just wasted time hunting down why my cascade delete relationships weren't being preserved only to discover that I hadn't ported the modelBuilder.Entity<T>()....WillCascadeOnDelete();
code from my real context into my combined context.
Looking at the NSPredicate reference, it looks like you need to surround your substitution character with quotes. For example, your current predicate reads: (SPORT == Football)
You want it to read (SPORT == 'Football')
, so your format string needs to be @"(SPORT == '%@')"
.
I know this answer is ridiculous, but consider just disabling this rule until the bugs are worked out or you've upgraded your tooling:
/* eslint-disable react/prop-types */ // TODO: upgrade to latest eslint tooling
Or disable project-wide in your eslintrc:
"rules": {
"react/prop-types": "off"
}
Today, you should be representing a folder using its content: URI as obtained from the Storage Access Framework, and opening it should be as simple as:
Intent i = new Intent(Intent.ACTION_VIEW, uri);
startActivity(i);
Alas, the Files app currently contains a bug that causes it to crash when you try this using the external storage provider. Folders from third party providers however can be displayed in this way.
you can upload file using jsp /servlet.
<form action="UploadFileServlet" method="post">
<input type="text" name="description" />
<input type="file" name="file" />
<input type="submit" />
</form>
on the other hand server side. use following code.
package com.abc..servlet;
import java.io.File;
---------
--------
/**
* Servlet implementation class UploadFileServlet
*/
public class UploadFileServlet extends HttpServlet {
private static final long serialVersionUID = 1L;
public UploadFileServlet() {
super();
// TODO Auto-generated constructor stub
}
protected void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
// TODO Auto-generated method stub
response.sendRedirect("../jsp/ErrorPage.jsp");
}
protected void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
// TODO Auto-generated method stub
PrintWriter out = response.getWriter();
HttpSession httpSession = request.getSession();
String filePathUpload = (String) httpSession.getAttribute("path")!=null ? httpSession.getAttribute("path").toString() : "" ;
String path1 = filePathUpload;
String filename = null;
File path = null;
FileItem item=null;
boolean isMultipart = ServletFileUpload.isMultipartContent(request);
if (isMultipart) {
FileItemFactory factory = new DiskFileItemFactory();
ServletFileUpload upload = new ServletFileUpload(factory);
String FieldName = "";
try {
List items = upload.parseRequest(request);
Iterator iterator = items.iterator();
while (iterator.hasNext()) {
item = (FileItem) iterator.next();
if (fieldname.equals("description")) {
description = item.getString();
}
}
if (!item.isFormField()) {
filename = item.getName();
path = new File(path1 + File.separator);
if (!path.exists()) {
boolean status = path.mkdirs();
}
/* START OF CODE FRO PRIVILEDGE*/
File uploadedFile = new File(path + Filename); // for copy file
item.write(uploadedFile);
}
} else {
f1 = item.getName();
}
} // END OF WHILE
response.sendRedirect("welcome.jsp");
} catch (FileUploadException e) {
e.printStackTrace();
} catch (Exception e) {
e.printStackTrace();
}
}
}
}
System.setProperty("webdriver.gecko.driver", "C:\\gecko\\geckodriver.exe");
System.setProperty("webdriver.firefox.bin","C:\\Program Files\\Mozilla Firefox\\firefox.exe");
WebDriver driver = new FirefoxDriver();
I tried all the above no good. So I just add a padding individually:
#button {
font-size: 20px;
color: white;
background: crimson;
border: 2px solid rgb(37, 34, 34);
border-radius: 10px;
padding-top: 10px;
padding-bottom: 10px;
padding-right: 10px;
padding-left: 10px;
}
This is what I went with. For those of you who want to optimize, check out https://stackoverflow.com/a/624379/991863.
public static string Hash(string stringToHash)
{
using (var sha1 = new SHA1Managed())
{
return BitConverter.ToString(sha1.ComputeHash(Encoding.UTF8.GetBytes(stringToHash)));
}
}
EUREKA I found it!
With the current Studio 1.3 each project has a local.properties
file where you can edit the SDK!
If I understand your question correctly, you are asking how you can create class level constants (static - in C++ parlance) such that you don't a) replicate the overhead in every instance, and b have to recompute what is otherwise constant.
The language has evolved - as every reader knows, but as I test this in Xcode 6.3.1, the solution is:
import Swift
class MyClass {
static let testStr = "test"
static let testStrLen = count(testStr)
init() {
println("There are \(MyClass.testStrLen) characters in \(MyClass.testStr)")
}
}
let a = MyClass()
// -> There are 4 characters in test
I don't know if the static is strictly necessary as the compiler surely only adds only one entry per const variable into the static section of the binary, but it does affect syntax and access. By using static, you can refer to it even when you don't have an instance: MyClass.testStrLen
.
See help(Sys.sleep)
.
For example, from ?Sys.sleep
testit <- function(x)
{
p1 <- proc.time()
Sys.sleep(x)
proc.time() - p1 # The cpu usage should be negligible
}
testit(3.7)
Yielding
> testit(3.7)
user system elapsed
0.000 0.000 3.704
Since the data is not free, you can use this Bloomberg API Emulator (disclaimer: it's my project) to learn how to send requests and make subscriptions. This emulator looks and acts just like the real Bloomberg API, although it doesn't return real data. In my time developing applications that use the Bloomberg API, I rarely care about the actual data that I'm handling; I care about how to retrieve data.
If you want to learn how to use the Bloomberg API give it a try. If you want to test out your code without an account, use this. A Bloomberg account costs about $2,000 a month, so you can save a lot with this project.
The emulator now supports Java and C++ in addition to C#.
C#, C++, and Java:
The existing answers solve most cases. However, I ran into a case where I needed the content of the grid-cell to be overflow: visible
. I solved it by absolutely positioning within a wrapper (not ideal, but the best I know), like this:
.month-grid {
display: grid;
grid-template: repeat(6, 1fr) / repeat(7, 1fr);
background: #fff;
grid-gap: 2px;
}
.day-item-wrapper {
position: relative;
}
.day-item {
position: absolute;
top: 0;
left: 0;
right: 0;
bottom: 0;
padding: 10px;
background: rgba(0,0,0,0.1);
}
In MSDN, Assembly.GetExecutingAssembly Method, is remark about method "getexecutingassembly", that for performance reasons, you should call this method only when you do not know at design time what assembly is currently executing.
The recommended way to retrieve an Assembly object that represents the current assembly is to use the Type.Assembly
property of a type found in the assembly.
The following example illustrates:
using System;
using System.Reflection;
public class Example
{
public static void Main()
{
Console.WriteLine("The version of the currently executing assembly is: {0}",
typeof(Example).Assembly.GetName().Version);
}
}
/* This example produces output similar to the following:
The version of the currently executing assembly is: 1.1.0.0
Of course this is very similar to the answer with helper class "public static class CoreAssembly", but, if you know at least one type of executing assembly, it isn't mandatory to create a helper class, and it saves your time.
file_get_contents / file_put_contents will not magically convert encoding.
You have to convert the string explicitly; for example with iconv()
or mb_convert_encoding()
.
Try this:
$data = file_get_contents($npath);
$data = mb_convert_encoding($data, 'UTF-8', 'OLD-ENCODING');
file_put_contents('tempfolder/'.$a, $data);
Or alternatively, with PHP's stream filters:
$fd = fopen($file, 'r');
stream_filter_append($fd, 'convert.iconv.UTF-8/OLD-ENCODING');
stream_copy_to_stream($fd, fopen($output, 'w'));
You don't need anything special for adding paramaters. Just like you had it.
Route::get('groups/(:any)', array('as' => 'group', 'uses' => 'groups@show'));
class Groups_Controller extends Base_Controller {
public $restful = true;
public function get_show($groupID) {
return 'I am group id ' . $groupID;
}
}
@mayabelle you can create IHttpActionResult concrete and wrapped those code like this:
public class NotFoundPlainTextActionResult : IHttpActionResult
{
public NotFoundPlainTextActionResult(HttpRequestMessage request, string message)
{
Request = request;
Message = message;
}
public string Message { get; private set; }
public HttpRequestMessage Request { get; private set; }
public Task<HttpResponseMessage> ExecuteAsync(CancellationToken cancellationToken)
{
return Task.FromResult(ExecuteResult());
}
public HttpResponseMessage ExecuteResult()
{
var response = new HttpResponseMessage();
if (!string.IsNullOrWhiteSpace(Message))
//response.Content = new StringContent(Message);
response = Request.CreateErrorResponse(HttpStatusCode.NotFound, new Exception(Message));
response.RequestMessage = Request;
return response;
}
}
Here's how one can get the actual path to the file in MacOS/Unix using an inline Perl script:
FILE=$(perl -e "use Cwd qw(abs_path); print abs_path('$0')")
Similarly, to get the directory of a symlinked file:
DIR=$(perl -e "use Cwd qw(abs_path); use File::Basename; print dirname(abs_path('$0'))")
xcopy "C:\Documents and Settings\user\Desktop\?????????" "D:\Backup" /s /e /y /i
Probably the problem is the space.Try with quotes.
This error pops up, if you try to create a web worker with data URI scheme.
var w = new Worker('data:text/javascript;charset=utf-8,onmessage%20%3D%20function()%20%7B%20postMessage(%22pong%22)%3B%20%7D'); w.postMessage('ping');
It's not allowed according to the standard: http://www.whatwg.org/specs/web-apps/current-work/multipage/workers.html#dom-worker
Make a method of MsgBox in your page.
public void MsgBox(String ex, Page pg,Object obj)
{
string s = "<SCRIPT language='javascript'>alert('" + ex.Replace("\r\n", "\\n").Replace("'", "") + "'); </SCRIPT>";
Type cstype = obj.GetType();
ClientScriptManager cs = pg.ClientScript;
cs.RegisterClientScriptBlock(cstype, s, s.ToString());
}
and when you want to use msgbox just put this line
MsgBox("! your message !", this.Page, this);
JSX will evaluate JavaScript expressions in curly braces
In this case, this.props.removeTaskFunction(todo)
is invoked and the return value is assigned to onClick
What you have to provide for onClick
is a function. To do this, you can wrap the value in an anonymous function.
export const samepleComponent = ({todoTasks, removeTaskFunction}) => {
const taskNodes = todoTasks.map(todo => (
<div>
{todo.task}
<button type="submit" onClick={() => removeTaskFunction(todo)}>Submit</button>
</div>
);
return (
<div className="todo-task-list">
{taskNodes}
</div>
);
}
});
I would like to extend or dare I say, improve answer mentioned by camposer
When you run
docker run -dit ubuntu
you are basically running the container in background in interactive mode.
When you attach and exit the container by CTRL+D (most common way to do it), you stop the container because you just killed the main process which you started your container with the above command.
Making advantage of an already running container, I would just fork another process of bash and get a pseudo TTY by running:
docker exec -it <container ID> /bin/bash
As everyone else has mentioned it is better to use the "in" operator, it can also act on lists:
line = "This,is,a,sample,string"
lst = ['This', 'sample']
for i in lst:
i in line
>> True
>> True
For people who rely on names to be the same for Swift header imports. (Ex: header file name: #import "MyApp-Swift.h"
):
This header file's name is actually determined by ${SWIFT_MODULE_NAME}-Swift.h
where SWIFT_MODULE_NAME
uses PRODUCT_MODULE_NAME
as the default value.
Moreover, there is a build setting that is project-wide called: SWIFT_OBJC_INTERFACE_HEADER_NAME
“Objective-C Generated Interface Header Name” and it's default value is ${SWIFT_MODULE_NAME}-Swift.h
. By changing this value to MyApp-Swift.h
all targets within our aggregate build were able to share the same header name and from them we were able to change the PRODUCT_MODULE_NAME
value.
On this web page, I see that:
"Remember that the dot is not a metacharacter inside a character class, so we do not need to escape it with a backslash."
So I guess the escaping of it is unnecessary...
To remove all Untrack files. Try this terminal command
git clean -fdx
Another handy difference (in English where accents are uncommon) is that an InvariantCulture comparison compares the entire strings by case-insensitive first, and then if necessary (and requested) distinguishes by case after first comparing only on the distinct letters. (You can also do a case-insensitive comparison, of course, which won't distinguish by case.) Corrected: Accented letters are considered to be another flavor of the same letters and the string is compared first ignoring accents and then accounting for them if the general letters all match (much as with differing case except not ultimately ignored in a case-insensitive compare). This groups accented versions of the otherwise same word near each other instead of completely separate at the first accent difference. This is the sort order you would typically find in a dictionary, with capitalized words appearing right next to their lowercase equivalents, and accented letters being near the corresponding unaccented letter.
An ordinal comparison compares strictly on the numeric character values, stopping at the first difference. This sorts capitalized letters completely separate from the lowercase letters (and accented letters presumably separate from those), so capitalized words would sort nowhere near their lowercase equivalents.
InvariantCulture also considers capitals to be greater than lower case, whereas Ordinal considers capitals to be less than lowercase (a holdover of ASCII from the old days before computers had lowercase letters, the uppercase letters were allocated first and thus had lower values than the lowercase letters added later).
For example, by Ordinal: "0" < "9" < "A" < "Ab" < "Z" < "a" < "aB" < "ab" < "z" < "Á" < "Áb" < "á" < "áb"
And by InvariantCulture: "0" < "9" < "a" < "A" < "á" < "Á" < "ab" < "aB" < "Ab" < "áb" < "Áb" < "z" < "Z"
Undoubtly this can be simplified but the results match your expectations.
The gist of this is to
CTE
for each t2ID
CTE
for each t2ID
CTE
's SQL Statement
;WITH MaxPrice AS (
SELECT t2ID
, t1ID
FROM (
SELECT t2.ID AS t2ID
, t1.ID AS t1ID
, rn = ROW_NUMBER() OVER (PARTITION BY t2.ID ORDER BY t1.Price DESC)
FROM @t1 t1
INNER JOIN @relation r ON r.t1ID = t1.ID
INNER JOIN @t2 t2 ON t2.ID = r.t2ID
) maxt1
WHERE maxt1.rn = 1
)
, SumPrice AS (
SELECT t2ID = t2.ID
, Price = SUM(Price)
FROM @t1 t1
INNER JOIN @relation r ON r.t1ID = t1.ID
INNER JOIN @t2 t2 ON t2.ID = r.t2ID
GROUP BY
t2.ID
)
SELECT t2.ID
, t2.Name
, t2.Orders
, mp.t1ID
, t1.ID
, t1.Name
, sp.Price
FROM @t2 t2
INNER JOIN MaxPrice mp ON mp.t2ID = t2.ID
INNER JOIN SumPrice sp ON sp.t2ID = t2.ID
INNER JOIN @t1 t1 ON t1.ID = mp.t1ID
If the list is sorted (as happens to be in the example) a binary search on index certainly works.
public static Dog Find(List<Dog> AllDogs, string Id)
{
int p = 0;
int n = AllDogs.Count;
while (true)
{
int m = (n + p) / 2;
Dog d = AllDogs[m];
int r = string.Compare(Id, d.Id);
if (r == 0)
return d;
if (m == p)
return null;
if (r < 0)
n = m;
if (r > 0)
p = m;
}
}
Not sure what the LINQ version of this would be.
Here's one implementation, what works like $.prop(name[,value])
or $.attr(name[,value])
function. If b
variable is filled, visibility is set according to that, and this
is returned (allowing to continue with other properties), otherwise it returns visibility value.
jQuery.fn.visible = function (b) {
if(b === undefined)
return this.css('visibility')=="visible";
else {
this.css('visibility', b? 'visible' : 'hidden');
return this;
}
}
Example:
$("#result").visible(true).on('click',someFunction);
if($("#result").visible())
do_something;
Enum.valueOf()
only checks the constant name, so you need to pass it "COLUMN_HEADINGS"
instead of "columnHeadings". Your name
property has nothing to do with Enum internals.
To address the questions/concerns in the comments:
The enum's "builtin" (implicitly declared) valueOf(String name)
method will look up an enum constant with that exact name. If your input is "columnHeadings", you have (at least) three choices:
enum PropName { contents, columnHeadings, ...}
. This is obviously the most convenient.valueOf
, if you're really fond of naming conventions.valueOf
to find the corresponding constant for an input. This makes most sense if there are multiple possible mappings for the same set of constants.You can use MacVim when you're on a Mac to easily access the clipboard using the standard OS keys.
It's also fully backward compatible with normal Vim, so I don't even have to have a separate .vimrc
.
<%= Html.Partial("PartialName", Model) %>
Another solution is as follows:
1) Keep "inferSchema" as False
2) While running 'Map' functions on the row, you can read 'asString' (row.getString...)
//Read CSV and create dataset
Dataset<Row> enginesDataSet = sparkSession
.read()
.format("com.databricks.spark.csv")
.option("header", "true")
.option("inferSchema","false")
.load(args[0]);
JavaRDD<Box> vertices = enginesDataSet
.select("BOX","BOX_CD")
.toJavaRDD()
.map(new Function<Row, Box>() {
@Override
public Box call(Row row) throws Exception {
return new Box((String)row.getString(0),(String)row.get(1));
}
});
I can't get it to work on $.get()
because it has no complete
event.
I suggest to use $.ajax()
like this,
$.ajax({
url: 'http://www.example.org',
data: {'a':1,'b':2,'c':3},
dataType: 'xml',
complete : function(){
alert(this.url)
},
success: function(xml){
}
});
You have mentioned Wrong id
alert(document.getElementById("name").value);
if you want to use name
attribute then
alert(document.getElementsByName("username")[0].value);
Updates:
input type="text" id="name" name="username"
id is different from name
ABCPDF can do so as well -- check out http://www.websupergoo.com/helppdf6net/default.html
You need to create a service to be able to share data between controllers.
app.factory('myService', function() {
var savedData = {}
function set(data) {
savedData = data;
}
function get() {
return savedData;
}
return {
set: set,
get: get
}
});
In your controller A:
myService.set(yourSharedData);
In your controller B:
$scope.desiredLocation = myService.get();
Remember to inject myService in the controllers by passing it as a parameter.
/*count no of Word in String using TreeMap we can use HashMap also but word will not display in sorted order */
import java.util.*;
public class Genric3
{
public static void main(String[] args)
{
Map<String, Integer> unique = new TreeMap<String, Integer>();
String string1="Ram:Ram: Dog: Dog: Dog: Dog:leela:leela:house:house:shayam";
String string2[]=string1.split(":");
for (int i=0; i<string2.length; i++)
{
String string=string2[i];
unique.put(string,(unique.get(string) == null?1:(unique.get(string)+1)));
}
System.out.println(unique);
}
}
Look at the HttpServletResponse#sendRedirect(String location)
method.
Use it as:
response.sendRedirect(request.getContextPath() + "/welcome.jsp")
Alternatively, look at HttpServletResponse#setHeader(String name, String value)
method.
The redirection is set by adding the location header:
response.setHeader("Location", request.getContextPath() + "/welcome.jsp");
Easiest way to blanket remove a character from string is to Trim it
cl = cl.Trim(' ');
Removes all of the spaces in a string
Like this:
var myString = "19 51 2.108997";
var stringParts = myString.split(" ");
var html = "<span>" + stringParts[0] + " " + stringParts[1] + "</span> <span>" + stringParts[2] + "</span";
please don't try with the old cv module, use cv2:
import cv2
cv2.rectangle(img, (x1, y1), (x2, y2), (255,0,0), 2)
x1,y1 ------
| |
| |
| |
--------x2,y2
[edit] to append the follow-up questions below:
cv2.imwrite("my.png",img)
cv2.imshow("lalala", img)
k = cv2.waitKey(0) # 0==wait forever
SQL> SELECT TO_CHAR(date '1982-03-09', 'DAY') day FROM dual;
DAY
---------
TUESDAY
SQL> SELECT TO_CHAR(date '1982-03-09', 'DY') day FROM dual;
DAY
---
TUE
SQL> SELECT TO_CHAR(date '1982-03-09', 'Dy') day FROM dual;
DAY
---
Tue
(Note that the queries use ANSI date literals, which follow the ISO-8601 date standard and avoid date format ambiguity.)
Yep, confirmed that simply using hh instead of HH fixed my issue.
Changed from this:
SimpleDateFormat sdf = new SimpleDateFormat("HH:mm aa");
To this:
SimpleDateFormat sdf = new SimpleDateFormat("hh:mm aa");
You can still use HH to store the time if you don't want to bother storing and dealing with the AM/PM. Then when you retrieve it, use hh.
In the old days, when we could assume that most computers used ASCII, we would just do
int i = c[0] - '0';
But in these days of Unicode, it's not a good idea. It was never a good idea if your code had to run on a non-ASCII computer.
Edit: Although it looks hackish, evidently it is guaranteed by the standard to work. Thanks @Earwicker.
Instead of having a fat APK file, I would like to use just the armeabi files and remove the armeabi-v7a folder.
The opposite is a much better strategy. If you have minSdkVersion
to 14 and upload your apk to the play store, you'll notice you'll support the same number of devices whether you support armeabi
or not. Therefore, there are no devices with Android 4 or higher which would benefit from armeabi
at all.
This is probably why the Android NDK doesn't even support armeabi
anymore as per revision r17b. [source]
The reason 'addPane' is assigned to this is because of the <pane>
directive.
The pane
directive does require: '^tabs'
, which puts the tabs controller object from a parent directive, into the link function.
addPane
is assigned to this
so that the pane
link function can see it. Then in the pane
link function, addPane
is just a property of the tabs
controller, and it's just tabsControllerObject.addPane. So the pane directive's linking function can access the tabs controller object and therefore access the addPane method.
I hope my explanation is clear enough.. it's kind of hard to explain.
For me to make it work again I just deleted the files
ib_logfile0
and
ib_logfile1
.
from :
/Applications/MAMP/db/mysql56/ib_logfile0
Mac 10.13.3
MAMP:Version 4.3 (853)
I think the author probably meant:
if Verbose:
print("Building internam Index for %d tile(s) ..." % len(inputTiles), end=' ')
He's missing an initial quote after print(
.
Note that as of Python 3.0, print
is a function as opposed to a statement, if you're using older versions of Python the equivalent would be:
print "Building internam Index for %d tile(s) ..." % len(inputTiles)
The end
parameter means that the line gets ' '
at the end rather than a newline character. The equivalent in earlier versions of Python is:
print "Building internam Index for %d tile(s) ..." % len(inputTiles),
(thanks Ignacio).
You have not defined the variable input_line
.
Add this:
string input_line;
And add this include.
#include <string>
Here is the full example. I also removed the semi-colon after the while loop, and you should have getline
inside the while to properly detect the end of the stream.
#include <iostream>
#include <string>
int main() {
for (std::string line; std::getline(std::cin, line);) {
std::cout << line << std::endl;
}
return 0;
}
First, you need to understand the difference between window
and document
. The window
object is a top level client side object. There is nothing above the window
object. JavaScript is an object orientated language. You start with an object and apply methods to its properties or the properties of its object groups. For example, the document
object is an object of the window
object. To change the document
's background color, you'd set the document
's bgcolor
property.
window.document.bgcolor = "red"
To answer your question, There is no difference in the end result between window
and document
scrollTop
. Both will give the same output.
In general use document
mainly to register events and use window
to do things like scroll
, scrollTop
, and resize
.
To get rid of the if/else awkwardness you could use a using block:
@{
var count = 0;
foreach (var item in Model)
{
using(Html.TableRow(new { @class = (count++ % 2 == 0) ? "alt-row" : "" }))
{
<td>
@Html.DisplayFor(modelItem => item.Title)
</td>
<td>
@Html.Truncate(item.Details, 75)
</td>
<td>
<img src="@Url.Content("~/Content/Images/Projects/")@item.Images.Where(i => i.IsMain == true).Select(i => i.Name).Single()"
alt="@item.Images.Where(i => i.IsMain == true).Select(i => i.AltText).Single()" class="thumb" />
</td>
<td>
@Html.ActionLink("Edit", "Edit", new { id=item.ProjectId }) |
@Html.ActionLink("Details", "Details", new { id = item.ProjectId }) |
@Html.ActionLink("Delete", "Delete", new { id=item.ProjectId })
</td>
}
}
}
Reusable element that make it easier to add attributes:
//Block is take from http://www.codeducky.org/razor-trick-using-block/
public class TableRow : Block
{
private object _htmlAttributes;
private TagBuilder _tr;
public TableRow(HtmlHelper htmlHelper, object htmlAttributes) : base(htmlHelper)
{
_htmlAttributes = htmlAttributes;
}
public override void BeginBlock()
{
_tr = new TagBuilder("tr");
_tr.MergeAttributes(HtmlHelper.AnonymousObjectToHtmlAttributes(_htmlAttributes));
this.HtmlHelper.ViewContext.Writer.Write(_tr.ToString(TagRenderMode.StartTag));
}
protected override void EndBlock()
{
this.HtmlHelper.ViewContext.Writer.Write(_tr.ToString(TagRenderMode.EndTag));
}
}
Helper method to make razor syntax clearer:
public static TableRow TableRow(this HtmlHelper self, object htmlAttributes)
{
var tableRow = new TableRow(self, htmlAttributes);
tableRow.BeginBlock();
return tableRow;
}
Just adding to Jason's answer, the .
selector is only for classes. If you want to select something other than the element, id, or class, you need to wrap it in square brackets.
e.g.
$('element[attr=val]')
I was also keen on these kind of games. One modern example which I have used is http://www.robotbattle.com/. There are various others - for example the ones listed at http://www.google.com/Top/Games/Video_Games/Simulation/Programming_Games/Robotics/
Right-click on the relevant table and choose either of:
That seems to work for me.
For those who still don't get the accepted solution :
Add
import React from 'react'
import ReactDOM from 'react-dom'
at the top of the file.
Microsoft Web Deploy v3 can export and import all your files, the configuration settings, etc. It puts it all into a zip archive ready to import on the new server. It can even upgrade to newer versions of IIS (v7-v8).
http://www.iis.net/extensions/WebDeploymentTool
After installing the tool: Right click your server or website in IIS Management Console, select 'Deploy', 'Export Application...' and run through the export.
On the new server, import the exported zip archive in the same way.
press windows+R open RUN Window
services.msc
find SQL Server(SQLEXPRESS) right click on that and start the service then check
I solved it setting in Eclipse:
Windows --> Preferences --> Java --> Debug --> Debugger timeout: 10000
Before I had set "Debugger timeout: 3000
" and I had problems with timeout.
Classes have an implicit strong reference to their ClassLoader instance, and vice versa. They are garbage collected as with Java objects. Without hitting the tools interface or similar, you can't remove individual classes.
As ever you can get memory leaks. Any strong reference to one of your classes or class loader will leak the whole thing. This occurs with the Sun implementations of ThreadLocal, java.sql.DriverManager and java.beans, for instance.
This issue came for me due to the fact that .. i was running server with selenium-server-standalone-2.32.0 and client registered with selenium-server-standalone-2.37.0 .. When i made both selenium-server-standalone-2.32.0 and ran then things worked fine
In my humble opinion, this is just a matter of deciding if the arguments are optional or not. If an Person object shouldn't (logically) exist without Name and Age, they should be mandatory in the constructor. If they are optional, (i.e. their absence is not a threat to the good functioning of the object), use the setters.
Here's a quote from Symfony's docs on constructor injection:
There are several advantages to using constructor injection:
- If the dependency is a requirement and the class cannot work without it then injecting it via the constructor ensures it is present when the class is used as the class cannot be constructed without it.
- The constructor is only ever called once when the object is created, so you can be sure that the dependency will not change during the object's lifetime.
These advantages do mean that constructor injection is not suitable for working with optional dependencies. It is also more difficult to use in combination with class hierarchies: if a class uses constructor injection then extending it and overriding the constructor becomes problematic.
(Symfony is one of the most popular and respected php frameworks)
Have a look at the python documentation for filter(function, iterable)
(from here):
Construct an iterator from those elements of iterable for which function returns true.
So in order to get a list back you have to use list class:
shesaid = list(filter(greetings(), ["hello", "goodbye"]))
But this probably isn't what you wanted, because it tries to call the result of greetings()
, which is "hello", on the values of your input list, and this won't work. Here also the iterator type comes into play, because the results aren't generated until you use them (for example by calling list()
on it). So at first you won't get an error, but when you try to do something with shesaid
it will stop working:
>>> print(list(shesaid))
Traceback (most recent call last):
File "<stdin>", line 1, in <module>
TypeError: 'str' object is not callable
If you want to check which elements in your list are equal to "hello" you have to use something like this:
shesaid = list(filter(lambda x: x == "hello", ["hello", "goodbye"]))
(I put your function into a lambda, see Randy C's answer for a "normal" function)
I'd recommend using a regular expressions instead of string operations for this:
Set fso = CreateObject("Scripting.FileSystemObject")
filename = "C:\VBS\filediprova.txt"
newtext = vbLf & "<tr><td><a href=""..."">Beginning_of_DD_TC5</a></td></tr>"
Set re = New RegExp
re.Pattern = "(\n.*?Test Case \d)"
re.Global = False
re.IgnoreCase = True
text = f.OpenTextFile(filename).ReadAll
f.OpenTextFile(filename, 2).Write re.Replace(text, newText & "$1")
The regular expression will match a line feed (\n
) followed by a line containing the string Test Case
followed by a number (\d
), and the replacement will prepend that with the text you want to insert (variable newtext
). Setting re.Global = False
makes the replacement stop after the first match.
If the line breaks in your text file are encoded as CR-LF
(carriage return + line feed) you'll have to change \n
into \r\n
and vbLf
into vbCrLf
.
If you have to modify several text files, you could do it in a loop like this:
For Each f In fso.GetFolder("C:\VBS").Files
If LCase(fso.GetExtensionName(f.Name)) = "txt" Then
text = f.OpenAsTextStream.ReadAll
f.OpenAsTextStream(2).Write re.Replace(text, newText & "$1")
End If
Next
Versions of sed
that support the -i
option for editing a file in place write to a temporary file and then rename the file.
Alternatively, you can just use ed
. For example, to change all occurrences of foo
to bar
in the file file.txt
, you can do:
echo ',s/foo/bar/g; w' | tr \; '\012' | ed -s file.txt
Syntax is similar to sed
, but certainly not exactly the same.
Even if you don't have a -i
supporting sed
, you can easily write a script to do the work for you. Instead of sed -i 's/foo/bar/g' file
, you could do inline file sed 's/foo/bar/g'
. Such a script is trivial to write. For example:
#!/bin/sh
IN=$1
shift
trap 'rm -f "$tmp"' 0
tmp=$( mktemp )
<"$IN" "$@" >"$tmp" && cat "$tmp" > "$IN" # preserve hard links
should be adequate for most uses.
Guess no regex is perfect for this use. I found a pretty solid one here
/(?:(?:https?|ftp|file):\/\/|www\.|ftp\.)(?:\([-A-Z0-9+&@#\/%=~_|$?!:,.]*\)|[-A-Z0-9+&@#\/%=~_|$?!:,.])*(?:\([-A-Z0-9+&@#\/%=~_|$?!:,.]*\)|[A-Z0-9+&@#\/%=~_|$])/igm
Some differences / advantages compared to the other ones posted here:
moo.com
without http
or www
See here for examples
This is also useful if you only want to temporarily suppress the warning:
import matplotlib.pyplot as plt
with plt.rc_context(rc={'figure.max_open_warning': 0}):
lots_of_plots()
You can use the following code to check if it's a leap year:
ily = function(yr) {
return (yr % 400) ? ((yr % 100) ? ((yr % 4) ? false : true) : false) : true;
}
I suppose you could look at this link if I understood your question correctly http://www.javacodegeeks.com/2012/07/ultimate-jpa-queries-and-tips-list-part_09.html
For example they created a query like:
select id, name, age, a.id as ADDRESS_ID, houseNumber, streetName ' +
20' from person p join address a on a.id = p.address_id where p.id = 1'
As user @aaracrr pointed out in a comment on another answer probably the best answer is to re-require the package with the same version constraint.
ie.
composer require vendor/package
or specifying a version constraint
composer require vendor/package:^1.0.0
private void Add_Click(object sender, EventArgs e) {
OleDbConnection con = new OleDbConnection(@ "Provider=Microsoft.Jet.OLEDB.4.0;Data Source=C:\Users\HP\Desktop\DS Project.mdb");
OleDbCommand cmd = con.CreateCommand();
con.Open();
cmd.CommandText = "Insert into DSPro (Playlist) values('" + textBox1.Text + "')";
cmd.ExecuteNonQuery();
MessageBox.Show("Record Submitted", "Congrats");
con.Close();
}
Instead of exceptions, just use:
if (Build.VERSION.SDK_INT >= 11)
and use
@SuppressLint("NewApi")
to suppress the warnings.
Try this one -
Query:
SELECT
database_name = DB_NAME(database_id)
, log_size_mb = CAST(SUM(CASE WHEN type_desc = 'LOG' THEN size END) * 8. / 1024 AS DECIMAL(8,2))
, row_size_mb = CAST(SUM(CASE WHEN type_desc = 'ROWS' THEN size END) * 8. / 1024 AS DECIMAL(8,2))
, total_size_mb = CAST(SUM(size) * 8. / 1024 AS DECIMAL(8,2))
FROM sys.master_files WITH(NOWAIT)
WHERE database_id = DB_ID() -- for current db
GROUP BY database_id
Output:
-- my query
name log_size_mb row_size_mb total_size_mb
-------------- ------------ ------------- -------------
xxxxxxxxxxx 512.00 302.81 814.81
-- sp_spaceused
database_name database_size unallocated space
---------------- ------------------ ------------------
xxxxxxxxxxx 814.81 MB 13.04 MB
Function:
ALTER FUNCTION [dbo].[GetDBSize]
(
@db_name NVARCHAR(100)
)
RETURNS TABLE
AS
RETURN
SELECT
database_name = DB_NAME(database_id)
, log_size_mb = CAST(SUM(CASE WHEN type_desc = 'LOG' THEN size END) * 8. / 1024 AS DECIMAL(8,2))
, row_size_mb = CAST(SUM(CASE WHEN type_desc = 'ROWS' THEN size END) * 8. / 1024 AS DECIMAL(8,2))
, total_size_mb = CAST(SUM(size) * 8. / 1024 AS DECIMAL(8,2))
FROM sys.master_files WITH(NOWAIT)
WHERE database_id = DB_ID(@db_name)
OR @db_name IS NULL
GROUP BY database_id
UPDATE 2016/01/22:
Show information about size, free space, last database backups
IF OBJECT_ID('tempdb.dbo.#space') IS NOT NULL
DROP TABLE #space
CREATE TABLE #space (
database_id INT PRIMARY KEY
, data_used_size DECIMAL(18,2)
, log_used_size DECIMAL(18,2)
)
DECLARE @SQL NVARCHAR(MAX)
SELECT @SQL = STUFF((
SELECT '
USE [' + d.name + ']
INSERT INTO #space (database_id, data_used_size, log_used_size)
SELECT
DB_ID()
, SUM(CASE WHEN [type] = 0 THEN space_used END)
, SUM(CASE WHEN [type] = 1 THEN space_used END)
FROM (
SELECT s.[type], space_used = SUM(FILEPROPERTY(s.name, ''SpaceUsed'') * 8. / 1024)
FROM sys.database_files s
GROUP BY s.[type]
) t;'
FROM sys.databases d
WHERE d.[state] = 0
FOR XML PATH(''), TYPE).value('.', 'NVARCHAR(MAX)'), 1, 2, '')
EXEC sys.sp_executesql @SQL
SELECT
d.database_id
, d.name
, d.state_desc
, d.recovery_model_desc
, t.total_size
, t.data_size
, s.data_used_size
, t.log_size
, s.log_used_size
, bu.full_last_date
, bu.full_size
, bu.log_last_date
, bu.log_size
FROM (
SELECT
database_id
, log_size = CAST(SUM(CASE WHEN [type] = 1 THEN size END) * 8. / 1024 AS DECIMAL(18,2))
, data_size = CAST(SUM(CASE WHEN [type] = 0 THEN size END) * 8. / 1024 AS DECIMAL(18,2))
, total_size = CAST(SUM(size) * 8. / 1024 AS DECIMAL(18,2))
FROM sys.master_files
GROUP BY database_id
) t
JOIN sys.databases d ON d.database_id = t.database_id
LEFT JOIN #space s ON d.database_id = s.database_id
LEFT JOIN (
SELECT
database_name
, full_last_date = MAX(CASE WHEN [type] = 'D' THEN backup_finish_date END)
, full_size = MAX(CASE WHEN [type] = 'D' THEN backup_size END)
, log_last_date = MAX(CASE WHEN [type] = 'L' THEN backup_finish_date END)
, log_size = MAX(CASE WHEN [type] = 'L' THEN backup_size END)
FROM (
SELECT
s.database_name
, s.[type]
, s.backup_finish_date
, backup_size =
CAST(CASE WHEN s.backup_size = s.compressed_backup_size
THEN s.backup_size
ELSE s.compressed_backup_size
END / 1048576.0 AS DECIMAL(18,2))
, RowNum = ROW_NUMBER() OVER (PARTITION BY s.database_name, s.[type] ORDER BY s.backup_finish_date DESC)
FROM msdb.dbo.backupset s
WHERE s.[type] IN ('D', 'L')
) f
WHERE f.RowNum = 1
GROUP BY f.database_name
) bu ON d.name = bu.database_name
ORDER BY t.total_size DESC
Output:
database_id name state_desc recovery_model_desc total_size data_size data_used_size log_size log_used_size full_last_date full_size log_last_date log_size
----------- -------------------------------- ------------ ------------------- ------------ ----------- --------------- ----------- -------------- ----------------------- ------------ ----------------------- ---------
24 StackOverflow ONLINE SIMPLE 66339.88 65840.00 65102.06 499.88 5.05 NULL NULL NULL NULL
11 AdventureWorks2012 ONLINE SIMPLE 16404.13 15213.00 192.69 1191.13 15.55 2015-11-10 10:51:02.000 44.59 NULL NULL
10 locateme ONLINE SIMPLE 1050.13 591.00 2.94 459.13 6.91 2015-11-06 15:08:34.000 17.25 NULL NULL
8 CL_Documents ONLINE FULL 793.13 334.00 333.69 459.13 12.95 2015-11-06 15:08:31.000 309.22 2015-11-06 13:15:39.000 0.01
1 master ONLINE SIMPLE 554.00 492.06 4.31 61.94 5.20 2015-11-06 15:08:12.000 0.65 NULL NULL
9 Refactoring ONLINE SIMPLE 494.32 366.44 308.88 127.88 34.96 2016-01-05 18:59:10.000 37.53 NULL NULL
3 model ONLINE SIMPLE 349.06 4.06 2.56 345.00 0.97 2015-11-06 15:08:12.000 0.45 NULL NULL
13 sql-format.com ONLINE SIMPLE 216.81 181.38 149.00 35.44 3.06 2015-11-06 15:08:39.000 23.64 NULL NULL
23 users ONLINE FULL 173.25 73.25 3.25 100.00 5.66 2015-11-23 13:15:45.000 0.72 NULL NULL
4 msdb ONLINE SIMPLE 46.44 20.25 19.31 26.19 4.09 2015-11-06 15:08:12.000 2.96 NULL NULL
21 SSISDB ONLINE FULL 45.06 40.00 4.06 5.06 4.84 2014-05-14 18:27:11.000 3.08 NULL NULL
27 tSQLt ONLINE SIMPLE 9.00 5.00 3.06 4.00 0.75 NULL NULL NULL NULL
2 tempdb ONLINE SIMPLE 8.50 8.00 4.50 0.50 1.78 NULL NULL NULL NULL
Adding the actual content from dbf's link in order to keep the solution within stackoverflow.
It turns out that when I first installed Glassfish on my Windows system I had JDK 6 installed, and recently I had to downgrade to JDK 5 to compile some code for another project.
Apparently when Glassfish is installed it hard-codes its reference to your JDK location, so to fix this problem I ended up having to edit a file named asenv.bat. In short, I edited this file:
C:\glassfish\config\asenv.bat:
and I commented out the reference to JDK 6 and added a new reference to JDK 5, like this:
REM set AS_JAVA=C:\Program Files\Java\jdk1.6.0_04\jre/..
set AS_JAVA=C:\Program Files\Java\jdk1.5.0_16
Although the path doesn't appear to be case sensitive, I've spent hours debugging an issue around JMS Destination object not found due to my replacement path's case being incorrect.
I've always used sort_by
. You need to wrap the #sort_by
output with Hash[]
to make it output a hash, otherwise it outputs an array of arrays. Alternatively, to accomplish this you can run the #to_h
method on the array of tuples to convert them to a k=>v
structure (hash).
hsh ={"a" => 1000, "b" => 10, "c" => 200000}
Hash[hsh.sort_by{|k,v| v}] #or hsh.sort_by{|k,v| v}.to_h
There is a similar question in "How to sort a Ruby Hash by number value?".
If you're running on Ubuntu, you may also need to configure Apparmor to allow MySQL to write to your folder, e.g. here's my configuration:
Add this line to file /etc/apparmor.d/usr.sbin.mysqld :
/var/lib/mysql-files/* rw
Then add these 2 config lines to /etc/mysql/my.cnf sections:
[client]
loose-local-infile = 1
[mysqld]
secure-file-priv = ""
Here's my SQL:
select id from blahs into outfile '/var/lib/mysql-files/blahs';
It worked for me. Good luck!
I made a small library that lets you easily use a throbber without images.
It uses CSS3 but falls back onto JavaScript if the browser doesn't support it.
// First argument is a reference to a container element in which you
// wish to add a throbber to.
// Second argument is the duration in which you want the throbber to
// complete one full circle.
var throbber = throbbage(document.getElementById("container"), 1000);
// Start the throbber.
throbber.play();
// Pause the throbber.
throbber.pause();
Although there is no need to close the file manually but it is good idea to do so if the scope of the file variable is bigger:
ifstream infile(szFilePath);
for (string line = ""; getline(infile, line); )
{
//do something with the line
}
if(infile.is_open())
infile.close();
The Random
class of Java located in the java.util
package will serve your purpose better. It has some nextInt()
methods that return an integer. The one taking an int argument will generate a number between 0 and that int, the latter not inclusive.
In at least in ubuntu 16.10, the default python3
is python3.5
. As such, all of the python3-X
packages will be installed for python3.5 and not for python3.6.
You can verify this by checking the shebang of pip3
:
$ head -n1 $(which pip3)
#!/usr/bin/python3
Fortunately, the pip installed by the python3-pip
package is installed into the "shared" /usr/lib/python3/dist-packages
such that python3.6 can also take advantage of it.
You can install packages for python3.6 by doing:
python3.6 -m pip install ...
For example:
$ python3.6 -m pip install requests
$ python3.6 -c 'import requests; print(requests.__file__)'
/usr/local/lib/python3.6/dist-packages/requests/__init__.py
ssize_t
is used for functions whose return value could either be a valid size, or a negative value to indicate an error.
It is guaranteed to be able to store values at least in the range [-1, SSIZE_MAX]
(SSIZE_MAX
is system-dependent).
So you should use size_t
whenever you mean to return a size in bytes, and ssize_t
whenever you would return either a size in bytes or a (negative) error value.
See: http://pubs.opengroup.org/onlinepubs/007908775/xsh/systypes.h.html
you can add keyup event like this
template: `
<input (keyup)="onKey($event)">
<p>{{values}}</p>
`
in Component, code some like below
export class KeyUpComponent_v1 {
values = '';
onKey(event:any) { // without type info
this.values += event.target.value + ' | ';
}
}
The answer given by minrk (included for completeness) is good, but there is another way that I like even more.
You can also render an entire cell as LaTeX
by typing %%latex
as the first line in a text cell. This is usefull if you
minrk's answer:
IPython notebook uses MathJax to render LaTeX inside html/markdown. Just put your LaTeX math inside
$$
.$$c = \sqrt{a^2 + b^2}$$
Or you can display LaTeX / Math output from Python, as seen towards the end of the notebook tour:
from IPython.display import display, Math, Latex display(Math(r'F(k) = \int_{-\infty}^{\infty} f(x) e^{2\pi i k} dx'))
In shell, you don't put a $ in front of a variable you're assigning. You only use $IP when you're referring to the variable.
#!/bin/bash
IP=$(curl automation.whatismyip.com/n09230945.asp)
echo "$IP"
sed "s/IP/$IP/" nsupdate.txt | nsupdate
The easy way is to define a non-ASCII character... as a character that is not an ASCII character.
LC_ALL=C grep '[^ -~]' file.xml
Add a tab after the ^
if necessary.
Setting LC_COLLATE=C
avoids nasty surprises about the meaning of character ranges in many locales. Setting LC_CTYPE=C
is necessary to match single-byte characters — otherwise the command would miss invalid byte sequences in the current encoding. Setting LC_ALL=C
avoids locale-dependent effects altogether.
You can write your own listener. It's same as HelmiB's answer but looks more natural:
Create listener interface:
public interface myAsyncTaskCompletedListener {
void onMyAsynTaskCompleted(int responseCode, String result);
}
Then write your asynchronous task:
public class myAsyncTask extends AsyncTask<String, Void, String> {
private myAsyncTaskCompletedListener listener;
private int responseCode = 0;
public myAsyncTask() {
}
public myAsyncTask(myAsyncTaskCompletedListener listener, int responseCode) {
this.listener = listener;
this.responseCode = responseCode;
}
@Override
protected void onPreExecute() {
super.onPreExecute();
}
@Override
protected String doInBackground(String... params) {
String result;
String param = (params.length == 0) ? null : params[0];
if (param != null) {
// Do some background jobs, like httprequest...
return result;
}
return null;
}
@Override
protected void onPostExecute(String finalResult) {
super.onPostExecute(finalResult);
if (!isCancelled()) {
if (listener != null) {
listener.onMyAsynTaskCompleted(responseCode, finalResult);
}
}
}
}
Finally implement listener in activity:
public class MainActivity extends AppCompatActivity implements myAsyncTaskCompletedListener {
@Override
public void onMyAsynTaskCompleted(int responseCode, String result) {
switch (responseCode) {
case TASK_CODE_ONE:
// Do something for CODE_ONE
break;
case TASK_CODE_TWO:
// Do something for CODE_TWO
break;
default:
// Show some error code
}
}
And this is how you can call asyncTask:
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
// Some other codes...
new myAsyncTask(this,TASK_CODE_ONE).execute("Data for background job");
// And some another codes...
}
What I normally do, similar to answer one:
var response = await httpClient.GetAsync(completeURL); // http://192.168.0.1:915/api/Controller/Object
if (response.IsSuccessStatusCode == true)
{
string res = await response.Content.ReadAsStringAsync();
var content = Json.Deserialize<Model>(res);
// do whatever you need with the JSON which is in 'content'
// ex: int id = content.Id;
Navigate();
return true;
}
else
{
await JSRuntime.Current.InvokeAsync<string>("alert", "Warning, the credentials you have entered are incorrect.");
return false;
}
Where 'model' is your C# model class.
public static BufferedImage rotateCw( BufferedImage img )
{
int width = img.getWidth();
int height = img.getHeight();
BufferedImage newImage = new BufferedImage( height, width, img.getType() );
for( int i=0 ; i < width ; i++ )
for( int j=0 ; j < height ; j++ )
newImage.setRGB( height-1-j, i, img.getRGB(i,j) );
return newImage;
}
from https://coderanch.com/t/485958/java/Rotating-buffered-image
There is also multipanelfigure package that is worth to mention. See also this answer.
library(ggplot2)
theme_set(theme_bw())
q1 <- ggplot(mtcars) + geom_point(aes(mpg, disp))
q2 <- ggplot(mtcars) + geom_boxplot(aes(gear, disp, group = gear))
q3 <- ggplot(mtcars) + geom_smooth(aes(disp, qsec))
q4 <- ggplot(mtcars) + geom_bar(aes(carb))
library(magrittr)
library(multipanelfigure)
figure1 <- multi_panel_figure(columns = 2, rows = 2, panel_label_type = "none")
# show the layout
figure1
figure1 %<>%
fill_panel(q1, column = 1, row = 1) %<>%
fill_panel(q2, column = 2, row = 1) %<>%
fill_panel(q3, column = 1, row = 2) %<>%
fill_panel(q4, column = 2, row = 2)
figure1
# complex layout
figure2 <- multi_panel_figure(columns = 3, rows = 3, panel_label_type = "upper-roman")
figure2
figure2 %<>%
fill_panel(q1, column = 1:2, row = 1) %<>%
fill_panel(q2, column = 3, row = 1) %<>%
fill_panel(q3, column = 1, row = 2) %<>%
fill_panel(q4, column = 2:3, row = 2:3)
figure2
Created on 2018-07-06 by the reprex package (v0.2.0.9000).
You can use Process.GetProcesses()
to get the currently running processes, then Process.Kill()
to kill a process.
element = findElement(By.xpath("//*[@test-id='test-username']");
element = findElement(By.xpath("//input[@test-id='test-username']");
(*) - any tagname
In both ES6 and Strict mode, use the following to get the Caller function
console.log((new Error()).stack.split("\n")[2].trim().split(" ")[1])
Please note that, the above line will throw an exception, if there is no caller or no previous stack. Use accordingly.
To get callee (the current function name), use:
console.log((new Error()).stack.split("\n")[1].trim().split(" ")[1])
Late to the party,Here's is my answer,
This is for the people who are not looking to change the colorAccent
in their parent theme,but wants to change EditText
attributes!
This answer demos how to change ......
- Bottom line color
- Cursor color
- Cursor pointer color (I used my custom image).......... of
EditText
using style applied to the Activity theme.
<android.support.v7.widget.AppCompatEditText
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:text="Hey" />
Example:
<style name="AppTheme.EditText" parent="@style/Widget.AppCompat.EditText">
<item name="android:textColor">@color/white</item>
<item name="android:textColorHint">#8AFFFFFF</item>
<item name="android:background">@drawable/edit_text_background</item> // background (bottom line at this case)
<item name="android:textCursorDrawable">@color/white</item> // Cursor
<item name="android:textSelectHandle">@drawable/my_white_icon</item> // For pointer normal state and copy text state
<item name="android:textSelectHandleLeft">@drawable/my_white_icon</item>
<item name="android:textSelectHandleRight">@drawable/my_white_icon</item>
</style>
Now create a drawable(edit_text_background
) add a resource xml for the background!You can customize as you want!
<?xml version="1.0" encoding="utf-8"?>
<layer-list xmlns:android="http://schemas.android.com/apk/res/android">
<item
android:bottom="0dp"
android:left="-3dp"
android:right="-3dp"
android:top="-3dp">
<shape android:shape="rectangle">
<stroke
android:width="1dp"
android:color="@color/white"/>
</shape>
</item>
</layer-list>
Now as you did set this style in your Activity theme.
Example :
In your Activity you have a theme,set this custom editText
theme to that.
<style name="AppTheme" parent="Theme.AppCompat.Light.DarkActionBar">
<!-- Your Theme data -->
<item name="editTextStyle">@style/AppTheme.EditText</item> // inculude this
</style>
public static String zeroPad(long number, int width) {
long wrapAt = (long)Math.pow(10, width);
return String.valueOf(number % wrapAt + wrapAt).substring(1);
}
The only problem with this approach is that it makes you put on your thinking hat to figure out how it works.
There is no trigger to perform code when the app is deleted from the device. Access to the keychain is dependant on the provisioning profile that is used to sign the application. Therefore no other applications would be able to access this information in the keychain.
It does not help with you aim to remove the password in the keychain when the user deletes application from the device but it should give you some comfort that the password is not accessible (only from a re-install of the original application).
Based on Nrzonline's answer: I fixed the problem of the multiple "." at the end of the input by adding a
let lastCharacterEntered
outside of the input and then onKeyPress
e => {
var allowedChars = "0123456789.";
function contains(stringValue, charValue) {
return stringValue.indexOf(charValue) > -1;
}
var invalidKey =
(e.key.length === 1 && !contains(allowedChars, e.key)) ||
(e.key === "." && contains(e.target.value, "."));
console.log(e.target.value);
invalidKey && e.preventDefault();
if (!invalidKey) {
if (lastCharacterEntered === "." && e.key === ".") {
e.preventDefault();
} else {
lastCharacterEntered = e.key;
}
}
}
use <strong>
or <b>
tag
also, you can try with css <span style="font-weight:bold">text</span>
// Instead Of
var index = arr.indexOf(200)
// Use
var index = arr.includes(200);
Please Note: Includes function is a simple instance method on the array and helps to easily find if an item is in the array(including NaN unlike indexOf)
Sheet sheet = workBook.getSheetAt(0); // Get Your Sheet.
for (Row row : sheet) { // For each Row.
Cell cell = row.getCell(0); // Get the Cell at the Index / Column you want.
}
My solution, a bit simpler code wise.
using Dollar is simple:
String filled = $("=").repeat(10).toString(); // produces "=========="
The simplest way would be to directly subtract the date objects from one another.
For example:
var hours = Math.abs(date1 - date2) / 36e5;
The subtraction returns the difference between the two dates in milliseconds. 36e5
is the scientific notation for 60*60*1000
, dividing by which converts the milliseconds difference into hours.
Ultimately they both produce the same HTML but Html.TextBoxFor() is strongly typed where as Html.TextBox isn't.
1: @Html.TextBox("Name")
2: Html.TextBoxFor(m => m.Name)
will both produce
<input id="Name" name="Name" type="text" />
So what does that mean in terms of use?
Generally two things:
TextBoxFor
will generate your input names for you. This is usually just the property name but for properties of complex types can include an underscore such as 'customer_name'TextBoxFor
version will allow you to use compile time checking. So if you change your model then you can check whether there are any errors in your views.It is generally regarded as better practice to use the strongly typed versions of the HtmlHelpers that were added in MVC2.
Addressing Steven's comment to Sam Dufel's answer
Thanks, sounds like that's the way to go. But I just realized that I only want the optional whitespace characters if they follow a newline. So for example, "c\n ats" or "ca\n ts" should match. But wouldn't want "c ats" to match if there is no newline. Any ideas on how that might be done?
This should do the trick:
/c(?:\n\s*)?a(?:\n\s*)?t(?:\n\s*)?s/
See this page for all the different variations of 'cats' that this matches.
You can also solve this using conditionals, but they are not supported in the javascript flavor of regex.
The Test-Connection command seems to be a useful alternative, and it can either provide either a Win32_PingStatus object, or a boolean value.
Documentation: https://msdn.microsoft.com/en-us/powershell/reference/5.1/microsoft.powershell.management/test-connection
I had to do the following
/WebContent
from Deployment Assembly
and add /src/main/webapp
Server Runtimes
This got me working, in addition to @alanbartczak answer.
Is there any existing data that the table contains? If so, try to clear out all the data in the table you want to add a foreign key. Then run the code (add a foreign key) again.
I encountered this problem so many times. This clearing out the all data in the table works when you want to add foreign key on a existing table.
Hope this works :)
<div><span>text TEXT</span></div>
div {
height: 1px;
border-top: 1px solid black;
text-align: center;
position: relative;
}
span {
position: relative;
top: -.7em;
background: white;
display: inline-block;
}
Give the span a padding to make more space between the text and the line.
Example: http://jsfiddle.net/tUGrf/
Use r.URL.Query()
when you appending to existing query, if you are building new set of params use the url.Values
struct like so
package main
import (
"fmt"
"log"
"net/http"
"net/url"
"os"
)
func main() {
req, err := http.NewRequest("GET","http://api.themoviedb.org/3/tv/popular", nil)
if err != nil {
log.Print(err)
os.Exit(1)
}
// if you appending to existing query this works fine
q := req.URL.Query()
q.Add("api_key", "key_from_environment_or_flag")
q.Add("another_thing", "foo & bar")
// or you can create new url.Values struct and encode that like so
q := url.Values{}
q.Add("api_key", "key_from_environment_or_flag")
q.Add("another_thing", "foo & bar")
req.URL.RawQuery = q.Encode()
fmt.Println(req.URL.String())
// Output:
// http://api.themoviedb.org/3/tv/popularanother_thing=foo+%26+bar&api_key=key_from_environment_or_flag
}
String are immutable, that's why questionText.replace(/[0-9]/g, '');
on it's own does work, but it doesn't change the questionText-string. You'll have to assign the result of the replacement to another String-variable or to questionText itself again.
var cleanedQuestionText = questionText.replace(/[0-9]/g, '');
or in 1 go (using \d+
, see Kobi's answer):
questionText = ("1 ding ?").replace(/\d+/g,'');
and if you want to trim the leading (and trailing) space(s) while you're at it:
questionText = ("1 ding ?").replace(/\d+|^\s+|\s+$/g,'');
First of all, a caveat. Why do you want to use telnet? telnet is an old protocol, unsafe and impractical for remote access. It's been (almost)totally replaced by ssh.
To answer your questions, it depends. It depends on the telnet client you use. If you use microsoft telnet, you can't. Microsoft telnet does not have any mean to send commands from a batch file or a command line.
One problem with the answer by Dave L. is when s2 contains regex markup such as \d
, etc.
You want to call Pattern.quote() on s2:
Pattern.compile(Pattern.quote(s2), Pattern.CASE_INSENSITIVE).matcher(s1).find();
In entity framework, when object is added to context, its state changes to Added. EF also changes state of each object to added in object tree and hence you are either getting primary key violation error or duplicate records are added in table.
I've had success with express and editing the res.header
. Mine matches yours pretty closely but I have a different Allow-Headers
as noted below:
res.header("Access-Control-Allow-Headers", "Origin, X-Requested-With, Content-Type, Accept");
I'm also using Angular and Node/Express, but I don't have the headers called out in the Angular code only the node/express
This is rather an old question, but I will add my notes for future references.
I had a similar issue and fixed it by changing the order of the exports in the PATH variable.
For example I was using a method of concatenating strings to my PATH by doing (this is just an example):
$> export PATH='$PATH:'$JAVA_HOME
If my variable PATH already had a java in it, the last value would be meaningless, thus the order would matter. To solve this I started inverting it by adding my variable first, then adding the PATH.
Following this idea I inverted the order that ANT_HOME was being exported. Adding JAVA_HOME before ANT_HOME.
This could be just a coincidence, but it worked for me.
React 16+
Child Component
import React from 'react'
class ChildComponent extends React.Component
{
constructor(props){
super(props);
}
render()
{
return <div>
<button onClick={()=>this.props.greetChild('child')}>Call parent Component</button>
</div>
}
}
export default ChildComponent;
Parent Component
import React from "react";
import ChildComponent from "./childComponent";
class MasterComponent extends React.Component
{
constructor(props)
{
super(props);
this.state={
master:'master',
message:''
}
this.greetHandler=this.greetHandler.bind(this);
}
greetHandler(childName){
if(typeof(childName)=='object')
{
this.setState({
message:`this is ${this.state.master}`
});
}
else
{
this.setState({
message:`this is ${childName}`
});
}
}
render()
{
return <div>
<p> {this.state.message}</p>
<button onClick={this.greetHandler}>Click Me</button>
<ChildComponent greetChild={this.greetHandler}></ChildComponent>
</div>
}
}
export default MasterComponent;
$files = [
'./first.jpg',
'./second.jpg',
'./third.jpg'
];
foreach ($files as $file) {
if (file_exists($file)) {
unlink($file);
} else {
// File not found.
}
}
You should try something running Mono (its compatible with .NET).
For game development, I recommend unity: http://unity3d.com/
for general aplications: http://xamarin.com/monoforandroid
I don't think that x[[1,3]][:,[1,3]]
is hardly readable. If you want to be more clear on your intent, you can do:
a[[1,3],:][:,[1,3]]
I am not an expert in slicing but typically, if you try to slice into an array and the values are continuous, you get back a view where the stride value is changed.
e.g. In your inputs 33 and 34, although you get a 2x2 array, the stride is 4. Thus, when you index the next row, the pointer moves to the correct position in memory.
Clearly, this mechanism doesn't carry well into the case of an array of indices. Hence, numpy will have to make the copy. After all, many other matrix math function relies on size, stride and continuous memory allocation.
Adding .gem
to vendor/cache
seems to work. No options required in Gemfile
.
Here's my favorite bit arithmetic macro, which works for any type of unsigned integer array from unsigned char
up to size_t
(which is the biggest type that should be efficient to work with):
#define BITOP(a,b,op) \
((a)[(size_t)(b)/(8*sizeof *(a))] op ((size_t)1<<((size_t)(b)%(8*sizeof *(a)))))
To set a bit:
BITOP(array, bit, |=);
To clear a bit:
BITOP(array, bit, &=~);
To toggle a bit:
BITOP(array, bit, ^=);
To test a bit:
if (BITOP(array, bit, &)) ...
etc.
Option 1:
Use following command in python ide.:
import numpy
Option 2:
Go to Python -> site-packages folder. There you should be able to find numpy and the numpy distribution info folder.
If any of the above is true then you installed numpy successfully.
Not sure of exact syntax (you use varchar2 type which means not SQL Server hence TOP) but you can use the LIMIT keyword for MySQL:
Select * FROM test_table WHERE user_id = value
ORDER BY DATE_ADDED DESC LIMIT 1
Or rownum in Oracle
SELECT * FROM
(Select rownum as rnum, * FROM test_table WHERE user_id = value ORDER BY DATE_ADDED DESC)
WHERE rnum = 1
If DB2, I'm not sure whether it's TOP, LIMIT or rownum...
You can also run arbitrary commands using the Groovy Post Build - and that will give you a lot of control over when they run and so forth. We use that to run a 'finger of blame' shell script in the case of failed or unstable builds.
if (manager.build.result.isWorseThan(hudson.model.Result.SUCCESS)) {
item = hudson.model.Hudson.instance.getItem("PROJECTNAMEHERE")
lastStableBuild = item.getLastStableBuild()
lastStableDate = lastStableBuild.getTime()
formattedLastStableDate = lastStableDate.format("MM/dd/yyyy h:mm:ss a")
now = new Date()
formattedNow = now.format("MM/dd/yyyy h:mm:ss a")
command = ['/appframe/jenkins/appframework/fob.ksh', "${formattedLastStableDate}", "${formattedNow}"]
manager.listener.logger.println "FOB Command: ${command}"
manager.listener.logger.println command.execute().text
}
(Our command takes the last stable build date and the current time as parameters so it can go investigate who might have broken the build, but you could run whatever commands you like in a similar fashion)
You can always loop using an index counter the conventional C style looping:
for i in range(len(l)-1):
print l[i+1]
It is always better to follow the "loop on every element" style because that's the normal thing to do, but if it gets in your way, just remember the conventional style is also supported, always.
This is the same as the other answers, but uses only one label and puts the usage first, which additionally makes it serve as a kind of documentation commend of the script which is also usually placed at the top:
@echo off
:: add other test for the arguments here...
if not [%1]==[] goto main
:: --------------------------
echo This command does something.
echo.
echo %0 param%%1 param%%2
echo param%%1 the file to operate on
echo param%%1 another file
:: --------------------------
exit /B 1
:main
:: --------------------------
echo do something with all arguments (%%* == %*) here...
However, if you don't have to use cmd/batch, use bash on WSL or powershell, they have more sane syntax and less arcane features.
This is a function we are using in our application and it is working fine.
delete cookie: No argument method
function clearListCookies()
{
var cookies = document.cookie.split(";");
for (var i = 0; i < cookies.length; i++)
{
var spcook = cookies[i].split("=");
deleteCookie(spcook[0]);
}
function deleteCookie(cookiename)
{
var d = new Date();
d.setDate(d.getDate() - 1);
var expires = ";expires="+d;
var name=cookiename;
//alert(name);
var value="";
document.cookie = name + "=" + value + expires + "; path=/acc/html";
}
window.location = ""; // TO REFRESH THE PAGE
}
Edit: This will delete the cookie by setting it to yesterday's date.
IN 2017, the VS CODE keyboard shortcuts have changed to CTRL+1, CTRL+2,CTRL+3 etc..to switch between tabs.
CMD+1, CMD+2, and CMD+3
switch between and create tab groups
A solution with Gson:
Gson gson = new Gson();
JsonElement jsonElement = gson.toJsonTree(map);
MyPojo pojo = gson.fromJson(jsonElement, MyPojo.class);
What OS and CPU are you using? If you are using a 32-bit OS, then a process on your system physically cannot address more than 4GB of memory. Since most text editors try to load the entire file into memory, I doubt you'll find one that will do what you want. It would have to be a very fancy text editor, that can do out-of-core processing, i. e. load a chunk of the file at a time.
You may be able to load such a huge file with if you use a 64-bit text editor on a computer with a 64-bit CPU and a 64-bit operating system. And you have to make sure that you have enough space in your swap partition or your swap file.
One thing to consider: Screenreaders
For some reasons, some Swing components do not work well when using a screenreader (and the Java AccessBridge for Windows). Know that different screenreaders result in different behaviour. And in my experience the SWT-Tree performs a lot better than the Swing-Tree in combination with a screenreader. Thus our application ended up in using both SWT and Swing components.
For distributing and loading the proper SWT-library, you might find this link usefull: http://www.chrisnewland.com/select-correct-swt-jar-for-your-os-and-jvm-at-runtime-191
Due to Oracle license restriction, there are no public repositories that provide ojdbc jar.
You need to download it and install in your local repository. Get jar from Oracle and install it in your local maven repository using
mvn install:install-file -Dfile={path/to/your/ojdbc.jar} -DgroupId=com.oracle
-DartifactId=ojdbc6 -Dversion=11.2.0 -Dpackaging=jar
If you are using ojdbc7, here is the link
If you have more than one button, then you can do the following.
<div class="center-block" style="max-width:400px">
<a href="#" class="btn btn-success">Accept</a>
<a href="#" class="btn btn-danger"> Reject</a>
</div>
html, body {
margin: 0;
height: 100%;
}
With Me I had the library ticked under Eclipse>Project Properties>Android what I just did was uncheck the ticked library.
SQL Server 2012 has a wonderful and long-awaited new DATEFROMPARTS function (which will raise an error if the date is invalid - my main objection to a DATEADD-based solution to this problem):
http://msdn.microsoft.com/en-us/library/hh213228.aspx
DATEFROMPARTS(ycolumn, mcolumn, dcolumn)
or
DATEFROMPARTS(@y, @m, @d)
I have updated the controller to:
.controller('BusinessCtrl',
function ($scope, $http, $location, Business, BusinessService, UserService, Photo) {
$scope.$watch('createBusinessForm.$valid', function(newVal) {
//$scope.valid = newVal;
$scope.informationStatus = true;
});
...
I tried all answers and then did it the way https://docs.mongodb.org/manual/tutorial/install-mongodb-on-windows/#configure-a-windows-service-for-mongodb-community-edition describes it.
Use a config file...
"C:\mongodb\bin\mongod.exe" --config "C:\mongodb\mongod.cfg" --install
Another solution is:
SELECT * FROM TABLE1 WHERE id NOT IN (SELECT id FROM TABLE2)
A simple way of generating a printable report from a Datagridview is to place the datagridview on a Panel object. It is possible to draw a bitmap of the panel.
Here's how I do it.
'create the bitmap with the dimentions of the Panel Dim bmp As New Bitmap(Panel1.Width, Panel1.Height)
'draw the Panel to the bitmap "bmp" Panel1.DrawToBitmap(bmp, Panel1.ClientRectangle)
I create a multi page tiff by "breaking my datagridview items into pages. this is how i detect the start of a new page:
'i add the rows to my datagrid one at a time and then check if the scrollbar is active. 'if the scrollbar is active i save the row to a variable and then i remove it from the 'datagridview and roll back my counter integer by one(thus the next run will include this 'row.
Private Function VScrollBarVisible() As Boolean
Dim ctrl As New Control
For Each ctrl In DataGridView_Results.Controls
If ctrl.GetType() Is GetType(VScrollBar) Then
If ctrl.Visible = True Then
Return True
Else
Return False
End If
End If
Next
Return Nothing
End Function
I hope this helps
In MySQL 5.7, the password is replaced with 'authentication_string'.
use
update user set authentication_string=password('myfavpassword') where user='root';
I experienced this error with Python2.7. It happened to me while trying to run many python programs, but I managed to reproduce it with this simple script:
#!/usr/bin/env python
import subprocess
import sys
result = subprocess.Popen([u'svn', u'info'])
if not callable(getattr(result, "__enter__", None)) and not callable(getattr(result, "__exit__", None)):
print("foo")
print("bar")
On success, it should print out 'foo' and 'bar', and probably an error message if you're not in a svn folder.
On failure, it should print 'UnicodeDecodeError: 'ascii' codec can't decode byte 0xc4 in position 39: ordinal not in range(128)'.
After trying to regenerate my locales and many other solutions posted in this question, I learned the error was happening because I had a special character (l) encoded in my PATH environment variable. After fixing the PATH in '~/.bashrc', and exiting my session and entering again, (apparently sourcing '~/.bashrc' didn't work), the issue was gone.
If you use mongoose, you can just use(assuming you're using subdocuments and population):
Profile.findById profileId
.select 'friends'
.exec (err, profile) ->
if err or not profile
handleError err, profile, res
else
Status.find { profile: { $in: profile.friends } }, (err, statuses) ->
if err
handleErr err, statuses, res
else
res.json createJSON statuses
It retrieves Statuses
which belong to one of Profile
(profileId
) friends. Friends is array of references to other Profiles
. Profile
schema with friends
defined:
schema = new mongoose.Schema
# ...
friends: [
type: mongoose.Schema.Types.ObjectId
ref: 'Profile'
unique: true
index: true
]
Jenkins: Multiple SCM - deprecated. GIT Plugin - doesn't work for multiple repos.
Scripting / pipeline as code - is the way to go.
You should create all your virtualenv
s in one folder, such as virt
.
Assuming your virtualenv folder name is virt, if not change it
cd
mkdir custom
Copy the below lines...
#!/usr/bin/env bash
ENV_PATH="$HOME/virt/$1/bin/activate"
bash --rcfile $ENV_PATH -i
Create a shell script file and paste the above lines...
touch custom/vhelper
nano custom/vhelper
Grant executable permission to your file:
sudo chmod +x custom/vhelper
Now export that custom folder path so that you can find it on the command-line by clicking tab...
export PATH=$PATH:"$HOME/custom"
Now you can use it from anywhere by just typing the below command...
vhelper YOUR_VIRTUAL_ENV_FOLDER_NAME
Suppose it is abc then...
vhelper abc
You need to reference the cout's namespace std
somehow. For instance, insert
using std::cout;
using std::endl;
on top of your function definition, or the file.
I had a fair amount of difficulty with a solution something very similar to this: trying to have two buttons in a TableRow, with each being half the screen width. For whatever reason, the left button would always be about 70% of the width, and the right button 30%. Calling table_layout.setStretchAllColumns(true) had no effect, nor did setting the button's width to half the screen, nor setting their layout weight.
The solution I ended up with was nesting a LinearLayout in the TableRows, which did take into account the value of the buttons' width.
TableLayout layout = new TableLayout(this);
TableRow top_row = new TableRow(this);
left_button = styleButton();
right_button = styleButton();
LinearLayout toprow_layout = new LinearLayout (this);
toprow_layout.setOrientation(LinearLayout.HORIZONTAL);
toprow_layout.addView (left_button);
toprow_layout.addView(right_button);
toprow.addView(top_layout);
layout.addView(top_row)
private Button styleButton() {
Button btn = new Button (this);
android.view.Display display = ((android.view.WindowManager)getSystemService(Context.WINDOW_SERVICE)).getDefaultDisplay();
btn.setWidth((int)(display.getWidth()/2)); // set width to half
btn.setHeight(((int)display.getHeight()/6)); // set height to whatevs
btn.setText("foo");
return btn;
}
In Visual Studio .NET you can do Ctrl + K then C to comment, Crtl + K then U to uncomment a block.
You have an incompatibility between the version of ASM required by Hibernate (asm-1.5.3.jar) and the one required by Spring. But, actually, I wonder why you have asm-2.2.3.jar on your classpath (ASM is bundled in spring.jar and spring-core.jar to avoid such problems AFAIK). See HHH-2222.
Bit late but hopefully can still be useful to someone.
2 steps to adding items to a specific position in an ArrayList
add
null items to a specific index in an ArrayList
Then set
the positions as and when required.
list = new ArrayList();//Initialise the ArrayList
for (Integer i = 0; i < mItems.size(); i++) {
list.add(i, null); //"Add" all positions to null
}
// "Set" Items
list.set(position, SomeObject);
This way you don't have redundant items in the ArrayList
i.e. if you were to add items such as,
list = new ArrayList(mItems.size());
list.add(position, SomeObject);
This would not overwrite existing items in the position merely, shifting existing ones to the right by one - so you have an ArrayList with twice as many indicies.
To remove all columns after the one you want, below code should work. It will remove at index 10 (remember Columns are 0 based), until the Column count is 10 or less.
DataTable dt;
int desiredSize = 10;
while (dt.Columns.Count > desiredSize)
{
dt.Columns.RemoveAt(desiredSize);
}
Try this:
=IF(NOT(ISERROR(MATCH(A3,worksheet2!A:A,0))),COUNTIF(worksheet2!A:A,A3),"No Match Found")
In addition to the published answers I can say that a metaclass
defines the behaviour for a class. So, you can explicitly set your metaclass. Whenever Python gets a keyword class
then it starts searching for the metaclass
. If it's not found – the default metaclass type is used to create the class's object. Using the __metaclass__
attribute, you can set metaclass
of your class:
class MyClass:
__metaclass__ = type
# write here other method
# write here one more method
print(MyClass.__metaclass__)
It'll produce the output like this:
class 'type'
And, of course, you can create your own metaclass
to define the behaviour of any class that are created using your class.
For doing that, your default metaclass
type class must be inherited as this is the main metaclass
:
class MyMetaClass(type):
__metaclass__ = type
# you can write here any behaviour you want
class MyTestClass:
__metaclass__ = MyMetaClass
Obj = MyTestClass()
print(Obj.__metaclass__)
print(MyMetaClass.__metaclass__)
The output will be:
class '__main__.MyMetaClass'
class 'type'
Another way to do this:
first_value = df['Btime'].values[0]
This way seems to be faster than using .iloc
:
In [1]: %timeit -n 1000 df['Btime'].values[20]
5.82 µs ± 142 ns per loop (mean ± std. dev. of 7 runs, 1000 loops each)
In [2]: %timeit -n 1000 df['Btime'].iloc[20]
29.2 µs ± 1.28 µs per loop (mean ± std. dev. of 7 runs, 1000 loops each)
I faced the same problem, and resolved it by changing the BodyStyle attribut value to "WebMessageBodyStyle.Bare" :
[OperationContract]
[WebGet(BodyStyle = WebMessageBodyStyle.Bare, RequestFormat = WebMessageFormat.Json,
ResponseFormat = WebMessageFormat.Json, UriTemplate = "GetProjectWithGeocodings/{projectId}")]
GeoCod_Project GetProjectWithGeocodings(string projectId);
The returned object will no longer be wrapped.
String s1 = "HelloSuresh";
String m = s1.replace("Hello","");
System.out.println(m);
I know the answer by @Pascal Thivent has solved the issue. I would like to add a bit more to his answer to others who might be surfing this thread.
If you are like me in the initial days of learning and wrapping your head around the concept of using the @OneToMany
annotation with the 'mappedBy
' property, it also means that the other side holding the @ManyToOne
annotation with the @JoinColumn
is the 'owner' of this bi-directional relationship.
Also, mappedBy
takes in the instance name (mCustomer
in this example) of the Class variable as an input and not the Class-Type (ex:Customer) or the entity name(Ex:customer).
BONUS :
Also, look into the orphanRemoval
property of @OneToMany
annotation. If it is set to true, then if a parent is deleted in a bi-directional relationship, Hibernate automatically deletes it's children.