You are trying to insert data that is larger than allowed for the column logo
.
Use following data types as per your need
TINYBLOB : maximum length of 255 bytes
BLOB : maximum length of 65,535 bytes
MEDIUMBLOB : maximum length of 16,777,215 bytes
LONGBLOB : maximum length of 4,294,967,295 bytes
Use LONGBLOB
to avoid this exception.
As @Alexander solves, the issue is one of async data load - you're rendering immediately and you will not have participants loaded until the async ajax call resolves and populates data
with participants
.
The alternative to the solution they provided would be to prevent render until participants exist, something like this:
render: function() {
if (!this.props.data.participants) {
return null;
}
return (
<ul className="PlayerList">
// I'm the Player List {this.props.data}
// <Player author="The Mini John" />
{
this.props.data.participants.map(function(player) {
return <li key={player}>{player}</li>
})
}
</ul>
);
}
The original question is "What could be the reason for this issue?" and the answer is discussed at https://github.com/kubernetes/kubernetes/issues/51835 & https://github.com/kubernetes/kubernetes/issues/65569 & see https://www.bountysource.com/issues/33241128-unable-to-remove-a-stopped-container-device-or-resource-busy
Its caused by docker mount leaking into some other namespace.
You can logon to pod host to investigate.
minikube ssh
docker container ps | grep <id>
docker container stop <id>
Best way to do is :
[self performSelector:@selector(YourFunctionName)
withObject:(can be Self or Object from other Classes)
afterDelay:(Time Of Delay)];
you can also pass nil as withObject parameter.
example :
[self performSelector:@selector(subscribe) withObject:self afterDelay:3.0 ];
If readability doesn't matter, use GUIDs.
E.g.:
var myUniqueFileName = string.Format(@"{0}.txt", Guid.NewGuid());
or shorter:
var myUniqueFileName = $@"{Guid.NewGuid()}.txt";
In my programs, I sometimes try e.g. 10 times to generate a readable name ("Image1.png"…"Image10.png") and if that fails (because the file already exists), I fall back to GUIDs.
Update:
Recently, I've also use DateTime.Now.Ticks
instead of GUIDs:
var myUniqueFileName = string.Format(@"{0}.txt", DateTime.Now.Ticks);
or
var myUniqueFileName = $@"{DateTime.Now.Ticks}.txt";
The benefit to me is that this generates a shorter and "nicer looking" filename, compared to GUIDs.
Please note that in some cases (e.g. when generating a lot of random names in a very short time), this might make non-unique values.
Stick to GUIDs if you want to make really sure that the file names are unique, even when transfering them to other computers.
You need this
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<-- I absolutely don't know why, but go ahead, and add this code snippet to your CSS -->
*{
margin:0;
padding:0;
}
That's it, have fun removing all those white-spaces problems.
The easiest way to set a min and max value to a seekbar for me: if you want values min=60 to max=180, this is equal to min=0 max=120. So in your seekbar xml set property:
android:max="120"
min will be always 0.
Now you only need to do what your are doing, add the amount to get your translated value in any change, in this case +60.
seekBar.setOnSeekBarChangeListener(new SeekBar.OnSeekBarChangeListener() {
@Override
public void onProgressChanged(SeekBar seekBar, int progress, boolean fromUser) {
int translatedProgress = progress + 60;
}
@Override
public void onStartTrackingTouch(SeekBar seekBar) {
}
@Override
public void onStopTrackingTouch(SeekBar seekBar) {
}
});
Be careful with the seekbar property android:progress, if you change the range you must recalculate your initial progress. If you want 50%, max/2, in my example 120/2 = 60;
I create equations with random numbers in VBA and for x squared put in x^2.
I read each square (or textbox) text into a string.
I then read each character in the string in turn and note the location of the ^ ("hats")'s in each.
Say the hats were at positions 4, 8 and 12.
I then "chop out" the first hat - the position of the character to be superscripted is now 4, the position of the other hats is now 7 and 11. I chop out the second hat, the character to superscript is now at 7 and the hat has moved to 10. I chop out the last hat .. the superscript character is now position 10.
I now select each character in turn and change the font to superscript.
Thus I can fill a whole spreadsheet with algebra using ^ and then call a routine to tidy it up.
For big powers like x to the 23 I build x^2^3 and the above routine does it.
EDIT
another way to deal with duplicate is you can do like this
var dic = slist.Select((element, index)=> new{element,index} )
.ToDictionary(ele=>ele.index.ToString(), ele=>ele.element);
or
easy way to do is
var res = list.ToDictionary(str => str, str=> str);
but make sure that there is no string is repeating...again otherewise above code will not work for you
if there is string is repeating than its better to do like this
Dictionary<string,string> dic= new Dictionary<string,string> ();
foreach(string s in Stringlist)
{
if(!dic.ContainsKey(s))
{
// dic.Add( value to dictionary
}
}
def pearson(x,y):
n=len(x)
vals=range(n)
sumx=sum([float(x[i]) for i in vals])
sumy=sum([float(y[i]) for i in vals])
sumxSq=sum([x[i]**2.0 for i in vals])
sumySq=sum([y[i]**2.0 for i in vals])
pSum=sum([x[i]*y[i] for i in vals])
# Calculating Pearson correlation
num=pSum-(sumx*sumy/n)
den=((sumxSq-pow(sumx,2)/n)*(sumySq-pow(sumy,2)/n))**.5
if den==0: return 0
r=num/den
return r
You can directly import github projects into Android Studio. File -> New -> Project from Version Control -> GitHub. Then enter your github username and password.Select the repository and hit clone.
The github repo will be created as a new project in android studio.
If you want a specific class menu to have a specific CSS if missing class logged-in:
body:not(.logged-in) .menu {
display: none
}
Why don't you just use the join function? In a regex findall() or group() you will need a string so:
import re
regex = re.compile('th.s')
l = ['this', 'is', 'just', 'a', 'test']
matches = re.findall(regex, ' '.join(l)) #Syntax option 1
matches = regex.findall(' '.join(l)) #Syntax option 2
The join() function allows you to transform a list in a string. The single quote before join is what you will put in the middle of each string on list. When you execute this code part (' '.join(l)) you'll receive this:
'this is just a test'
So you can use the findal() function.
I know i am 7 years late, but i recently create an account because I'm studying and other people could have the same question. I hope this help you and others.
Update After @FélixBrunet comments:
import re
regex = re.compile(r'th.s')
l = ['this', 'is', 'just', 'a', 'test','th','s', 'this is']
matches2=[] #declare a list
for i in range(len(l)): #loop with the iterations = list l lenght. This avoid the first item commented by @Felix
if regex.findall(l[i]) != []: #if the position i is not an empty list do the next line. PS: remember regex.findall() command return a list.
if l[i]== ''.join(regex.findall(l[i])): # If the string of i position of l list = command findall() i position so it'll allow the program do the next line - this avoid the second item commented by @Félix
matches2.append(''.join(regex.findall(l[i]))) #adds in the list just the string in the matches2 list
print(matches2)
If you show the file in a canvas anyway you can also convert the canvas content to a blob object.
canvas.toBlob(function(my_file){
//.toBlob is only implemented in > FF18 but there is a polyfill
//for other browsers https://github.com/blueimp/JavaScript-Canvas-to-Blob
var myBlob = (my_file);
})
In 1.0 you should use:
io.sockets.connected[socketid].emit();
In your code:
import static org.imgscalr.Scalr.*;
public static BufferedImage resizeBufferedImage(BufferedImage image, Scalr.Method scalrMethod, Scalr.Mode scalrMode, int width, int height) {
BufferedImage bi = image;
bi = resize( image, scalrMethod, scalrMode, width, height);
return bi;
}
// Save image:
ImageIO.write(Scalr.resize(etotBImage, 150), "jpg", new File(myDir));
To copy all text files to G: and preserve directory structure:
xcopy *.txt /s G:
You don't have to use jQuery. Plain JavaScript will do. I wouldn't recommend any library that ports XML standards onto JavaScript, and I was frustrated that no other solution existed for this so I wrote my own library.
I adapted regex to work with JSON.
First, stringify the JSON object. Then, you need to store the starts and lengths of the matched substrings. For example:
"matched".search("ch") // yields 3
For a JSON string, this works exactly the same (unless you are searching explicitly for commas and curly brackets in which case I'd recommend some prior transform of your JSON object before performing regex (i.e. think :, {, }).
Next, you need to reconstruct the JSON object. The algorithm I authored does this by detecting JSON syntax by recursively going backwards from the match index. For instance, the pseudo code might look as follows:
find the next key preceding the match index, call this theKey
then find the number of all occurrences of this key preceding theKey, call this theNumber
using the number of occurrences of all keys with same name as theKey up to position of theKey, traverse the object until keys named theKey has been discovered theNumber times
return this object called parentChain
With this information, it is possible to use regex to filter a JSON object to return the key, the value, and the parent object chain.
You can see the library and code I authored at http://json.spiritway.co/
can i write my html like this with use css ?
Yes you can but then you will have to use the :nth-child()
pseudo selector (which has limited support though):
table.alternate_color tr:nth-child(odd) td{
/* styles here */
}
table.alternate_color tr:nth-child(even) td{
/* styles here */
}
I worked out a working solution to this problem after 2 days of struggle, below solution is perfect for them who want to change few edit text only, change/toggle color through java code, and want to overcome the problems of different behavior on OS versions due to use setColorFilter() method.
import android.content.Context;
import android.graphics.PorterDuff;
import android.graphics.drawable.Drawable;
import android.support.v4.content.ContextCompat;
import android.support.v7.widget.AppCompatDrawableManager;
import android.support.v7.widget.AppCompatEditText;
import android.util.AttributeSet;
import com.newco.cooltv.R;
public class RqubeErrorEditText extends AppCompatEditText {
private int errorUnderlineColor;
private boolean isErrorStateEnabled;
private boolean mHasReconstructedEditTextBackground;
public RqubeErrorEditText(Context context) {
super(context);
initColors();
}
public RqubeErrorEditText(Context context, AttributeSet attrs) {
super(context, attrs);
initColors();
}
public RqubeErrorEditText(Context context, AttributeSet attrs, int defStyleAttr) {
super(context, attrs, defStyleAttr);
initColors();
}
private void initColors() {
errorUnderlineColor = R.color.et_error_color_rule;
}
public void setErrorColor() {
ensureBackgroundDrawableStateWorkaround();
getBackground().setColorFilter(AppCompatDrawableManager.getPorterDuffColorFilter(
ContextCompat.getColor(getContext(), errorUnderlineColor), PorterDuff.Mode.SRC_IN));
}
private void ensureBackgroundDrawableStateWorkaround() {
final Drawable bg = getBackground();
if (bg == null) {
return;
}
if (!mHasReconstructedEditTextBackground) {
// This is gross. There is an issue in the platform which affects container Drawables
// where the first drawable retrieved from resources will propogate any changes
// (like color filter) to all instances from the cache. We'll try to workaround it...
final Drawable newBg = bg.getConstantState().newDrawable();
//if (bg instanceof DrawableContainer) {
// // If we have a Drawable container, we can try and set it's constant state via
// // reflection from the new Drawable
// mHasReconstructedEditTextBackground =
// DrawableUtils.setContainerConstantState(
// (DrawableContainer) bg, newBg.getConstantState());
//}
if (!mHasReconstructedEditTextBackground) {
// If we reach here then we just need to set a brand new instance of the Drawable
// as the background. This has the unfortunate side-effect of wiping out any
// user set padding, but I'd hope that use of custom padding on an EditText
// is limited.
setBackgroundDrawable(newBg);
mHasReconstructedEditTextBackground = true;
}
}
}
public boolean isErrorStateEnabled() {
return isErrorStateEnabled;
}
public void setErrorState(boolean isErrorStateEnabled) {
this.isErrorStateEnabled = isErrorStateEnabled;
if (isErrorStateEnabled) {
setErrorColor();
invalidate();
} else {
getBackground().mutate().clearColorFilter();
invalidate();
}
}
}
Uses in xml
<com.rqube.ui.widget.RqubeErrorEditText
android:id="@+id/f_signup_et_referral_code"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_alignParentTop="true"
android:layout_toEndOf="@+id/referral_iv"
android:layout_toRightOf="@+id/referral_iv"
android:ems="10"
android:hint="@string/lbl_referral_code"
android:imeOptions="actionNext"
android:inputType="textEmailAddress"
android:textSize="@dimen/text_size_sp_16"
android:theme="@style/EditTextStyle"/>
Add lines in style
<style name="EditTextStyle" parent="android:Widget.EditText">
<item name="android:textColor">@color/txt_color_change</item>
<item name="android:textColorHint">@color/et_default_color_text</item>
<item name="colorControlNormal">@color/et_default_color_rule</item>
<item name="colorControlActivated">@color/et_engagged_color_rule</item>
</style>
java code to toggle color
myRqubeEditText.setErrorState(true);
myRqubeEditText.setErrorState(false);
2020 Update: Concatenation by String Interpolation
RFC 2795 issued 2019-10-27: Suggests support for implicit arguments to do what many people would know as "string interpolation" -- a way of embedding arguments within a string to concatenate them.
RFC: https://rust-lang.github.io/rfcs/2795-format-args-implicit-identifiers.html
Latest issue status can be found here: https://github.com/rust-lang/rust/issues/67984
At the time of this writing (2020-9-24), I believe this feature should be available in the Rust Nightly build.
This will allow you to concatenate via the following shorthand:
format_args!("hello {person}")
It is equivalent to this:
format_args!("hello {person}", person=person)
There is also the "ifmt" crate, which provides its own kind of string interpolation:
Try this
To Remove Hand Cursor
a.link {
cursor: default;
}
I came up with the following extension that takes care of removing elements from an Array
, assuming the elements in the Array
implement Equatable
:
extension Array where Element: Equatable {
mutating func removeEqualItems(_ item: Element) {
self = self.filter { (currentItem: Element) -> Bool in
return currentItem != item
}
}
mutating func removeFirstEqualItem(_ item: Element) {
guard var currentItem = self.first else { return }
var index = 0
while currentItem != item {
index += 1
currentItem = self[index]
}
self.remove(at: index)
}
}
var test1 = [1, 2, 1, 2]
test1.removeEqualItems(2) // [1, 1]
var test2 = [1, 2, 1, 2]
test2.removeFirstEqualItem(2) // [1, 1, 2]
One more procedural style example with mysqli_multi_query
, assumes $query
is filled with semicolon-separated statements.
mysqli_begin_transaction ($link);
for (mysqli_multi_query ($link, $query);
mysqli_more_results ($link);
mysqli_next_result ($link) );
! mysqli_errno ($link) ?
mysqli_commit ($link) : mysqli_rollback ($link);
Can you try this?
SELECT [Title], [Firstname], [Surname], [Company_name], [Interest]
FROM [dbo].[EXTRANET_users]
WHERE CAST(Submission_date AS DATE) = CAST(GETDATE() AS DATE)
T-SQL doesn't really have the "implied" casting like C# does - you need to explicitly use CAST
(or CONVERT
).
Also, use GETDATE()
or CURRENT_TIMESTAMP
to get the "now" date and time.
Update: since you're working against SQL Server 2000 - none of those approaches so far work. Try this instead:
SELECT [Title], [Firstname], [Surname], [Company_name], [Interest]
FROM [dbo].[EXTRANET_users]
WHERE DATEADD(dd, 0, DATEDIFF(dd, 0, submission_date)) = DATEADD(dd, 0, DATEDIFF(dd, 0, GETDATE()))
Not sure if Access supports it, but in most engines (including SQL Server
) this is called a correlated subquery and works fine:
SELECT TypesAndBread.Type, TypesAndBread.TBName,
(
SELECT Count(Sandwiches.[SandwichID]) As SandwichCount
FROM Sandwiches
WHERE (Type = 'Sandwich Type' AND Sandwiches.Type = TypesAndBread.TBName)
OR (Type = 'Bread' AND Sandwiches.Bread = TypesAndBread.TBName)
) As SandwichCount
FROM TypesAndBread
This can be made more efficient by indexing Type
and Bread
and distributing the subqueries over the UNION
:
SELECT [Sandwiches Types].[Sandwich Type] As TBName, "Sandwich Type" As Type,
(
SELECT COUNT(*) As SandwichCount
FROM Sandwiches
WHERE Sandwiches.Type = [Sandwiches Types].[Sandwich Type]
)
FROM [Sandwiches Types]
UNION ALL
SELECT [Breads].[Bread] As TBName, "Bread" As Type,
(
SELECT COUNT(*) As SandwichCount
FROM Sandwiches
WHERE Sandwiches.Bread = [Breads].[Bread]
)
FROM [Breads]
I had to do something like this
CREATE OR REPLACE FUNCTION MYFUNC()
RETURNS VOID AS $$
DO
$do$
BEGIN
DECLARE
myvar int;
...
END
$do$
$$ LANGUAGE SQL;
32-bit Java is limited to approximately 1.4 to 1.6 GB.
Quote
The maximum theoretical heap limit for the 32-bit JVM is 4G. Due to various additional constraints such as available swap, kernel address space usage, memory fragmentation, and VM overhead, in practice the limit can be much lower. On most modern 32-bit Windows systems the maximum heap size will range from 1.4G to 1.6G. On 32-bit Solaris kernels the address space is limited to 2G. On 64-bit operating systems running the 32-bit VM, the max heap size can be higher, approaching 4G on many Solaris systems.
Have you tried just using the mysql
command line client directly?
mysql -u username -p -h hostname databasename < dump.sql
If you can't do that, there are any number of utilities you can find by Googling that help you import a large dump into MySQL, like BigDump
In your database table list it should show View in Type column. To edit View:
Hope this help
update: in PHPMyAdmin 4.x, it doesn't show View in Type, but you can still recognize it:
Of course it may be just an empty table, but when you open the structure, you will know whether it's a table or a view.
There's no need, just use fadeToggle()
on the element:
$('#testElement').fadeToggle('fast');
If you don't have DBA rights then you can use user_segments table:
select bytes/1024/1024 MB from user_segments where segment_name='Table_name'
You can use arraylistname.clone()
Use:
import matplotlib.pyplot as plt
plt.gcf().subplots_adjust(bottom=0.15)
to make room for the label.
Edit:
Since i gave the answer, matplotlib
has added the tight_layout()
function.
So i suggest to use it:
plt.tight_layout()
should make room for the xlabel.
One very important use-case I just stumbled across: dict.setdefault()
is great for multi-threaded code when you only want a single canonical object (as opposed to multiple objects that happen to be equal).
For example, the (Int)Flag
Enum in Python 3.6.0 has a bug: if multiple threads are competing for a composite (Int)Flag
member, there may end up being more than one:
from enum import IntFlag, auto
import threading
class TestFlag(IntFlag):
one = auto()
two = auto()
three = auto()
four = auto()
five = auto()
six = auto()
seven = auto()
eight = auto()
def __eq__(self, other):
return self is other
def __hash__(self):
return hash(self.value)
seen = set()
class cycle_enum(threading.Thread):
def run(self):
for i in range(256):
seen.add(TestFlag(i))
threads = []
for i in range(8):
threads.append(cycle_enum())
for t in threads:
t.start()
for t in threads:
t.join()
len(seen)
# 272 (should be 256)
The solution is to use setdefault()
as the last step of saving the computed composite member -- if another has already been saved then it is used instead of the new one, guaranteeing unique Enum members.
And if someone think it could help. Here is @Daniel Vérité's function, with another param that accept names of columns that can be used in search. This way it decrease the time of processing. At least in my test it reduced a lot.
CREATE OR REPLACE FUNCTION search_columns(
needle text,
haystack_columns name[] default '{}',
haystack_tables name[] default '{}',
haystack_schema name[] default '{public}'
)
RETURNS table(schemaname text, tablename text, columnname text, rowctid text)
AS $$
begin
FOR schemaname,tablename,columnname IN
SELECT c.table_schema,c.table_name,c.column_name
FROM information_schema.columns c
JOIN information_schema.tables t ON
(t.table_name=c.table_name AND t.table_schema=c.table_schema)
WHERE (c.table_name=ANY(haystack_tables) OR haystack_tables='{}')
AND c.table_schema=ANY(haystack_schema)
AND (c.column_name=ANY(haystack_columns) OR haystack_columns='{}')
AND t.table_type='BASE TABLE'
LOOP
EXECUTE format('SELECT ctid FROM %I.%I WHERE cast(%I as text)=%L',
schemaname,
tablename,
columnname,
needle
) INTO rowctid;
IF rowctid is not null THEN
RETURN NEXT;
END IF;
END LOOP;
END;
$$ language plpgsql;
Bellow is an example of usage of the search_function created above.
SELECT * FROM search_columns('86192700'
, array(SELECT DISTINCT a.column_name::name FROM information_schema.columns AS a
INNER JOIN information_schema.tables as b ON (b.table_catalog = a.table_catalog AND b.table_schema = a.table_schema AND b.table_name = a.table_name)
WHERE
a.column_name iLIKE '%cep%'
AND b.table_type = 'BASE TABLE'
AND b.table_schema = 'public'
)
, array(SELECT b.table_name::name FROM information_schema.columns AS a
INNER JOIN information_schema.tables as b ON (b.table_catalog = a.table_catalog AND b.table_schema = a.table_schema AND b.table_name = a.table_name)
WHERE
a.column_name iLIKE '%cep%'
AND b.table_type = 'BASE TABLE'
AND b.table_schema = 'public')
);
Since Python lists are zero-based, we can use the zip built-in function as follows:
>>> [i for i,j in zip(range(len(haystack)), haystack) if j == 'needle' ]
where "haystack" is the list in question and "needle" is the item to look for.
(Note: Here we are iterating using i to get the indexes, but if we need rather to focus on the items we can switch to j.)
You might be interested in the BookLibrary sample application of the WPF Application Framework (WAF). It shows how to use validation in WPF and how to control the Save button when validation errors exists.
Login to virtual machine use below command to check ip address. (anyone will work)
If you used NAT for your virtual machine settings(your machine ip will be 10.0.2.15), then you have to use port forwarding to connect to machine. IP address will be 127.0.0.1
If you used bridged networking/Host only networking, then you will have separate Ip address. Use that IP address to connect virtual machine
Try this, this should work,
td input[type="checkbox"] {
float: left;
margin: 0 auto;
width: 100%;
}
If you want to create your own server using a ServerSocket
, you can just have it pick a free port for you:
ServerSocket serverSocket = new ServerSocket(0);
int port = serverSocket.getLocalPort();
Other server implementations typically have similar support. Jetty for example picks a free port unless you explicitly set it:
Server server = new Server();
ServerConnector connector = new ServerConnector(server);
// don't call: connector.setPort(port);
server.addConnector(connector);
server.start();
int port = connector.getLocalPort();
The accepted answer offers a solution which requires changing of the underlying data frame. This is not necessary. One can also simply factorise within the aes()
call directly or create a vector for that instead.
This is certainly not much different than user Drew Steen's answer, but with the important difference of not changing the original data frame.
level_order <- c('virginica', 'versicolor', 'setosa') #this vector might be useful for other plots/analyses
ggplot(iris, aes(x = factor(Species, level = level_order), y = Petal.Width)) + geom_col()
or
level_order <- factor(iris$Species, level = c('virginica', 'versicolor', 'setosa'))
ggplot(iris, aes(x = level_order, y = Petal.Width)) + geom_col()
or
directly in the aes()
call without a pre-created vector:
ggplot(iris, aes(x = factor(Species, level = c('virginica', 'versicolor', 'setosa')), y = Petal.Width)) + geom_col()
Here is another example - https://play.golang.org/p/9P-LmSkUMKY
package main
import (
"fmt"
)
func callOut() int {
fmt.Println("Outside is beinge executed")
return 1
}
var test = callOut()
func init() {
fmt.Println("Init3 is being executed")
}
func init() {
fmt.Println("Init is being executed")
}
func init() {
fmt.Println("Init2 is being executed")
}
func main() {
fmt.Println("Do your thing !")
}
Output of the above program
$ go run init/init.go
Outside is being executed
Init3 is being executed
Init is being executed
Init2 is being executed
Do your thing !
Fetch promises only reject with a TypeError when a network error occurs. Since 4xx and 5xx responses aren't network errors, there's nothing to catch. You'll need to throw an error yourself to use Promise#catch
.
A fetch Response conveniently supplies an ok
, which tells you whether the request succeeded. Something like this should do the trick:
fetch(url).then((response) => {
if (response.ok) {
return response.json();
} else {
throw new Error('Something went wrong');
}
})
.then((responseJson) => {
// Do something with the response
})
.catch((error) => {
console.log(error)
});
If you are using VS Code, close VS code and open again.
I tried closing Terminal and then opening new Terminal but it didn't work.
Re-Starting VS Code works!
You can make it easier in your code (if you're doing this a lot anyway) by using an extension on the DataRow object, like:
static class Extensions
{
public static string GetColumn(this DataRow Row, int Ordinal)
{
return Row.Table.Columns[Ordinal].ColumnName;
}
}
Then call it using:
string MyColumnName = MyRow.GetColumn(5);
With a signal handler.
Here is a simple example flipping a bool
used in main()
:
#include <signal.h>
static volatile int keepRunning = 1;
void intHandler(int dummy) {
keepRunning = 0;
}
// ...
int main(void) {
signal(SIGINT, intHandler);
while (keepRunning) {
// ...
Edit in June 2017: To whom it may concern, particularly those with an insatiable urge to edit this answer. Look, I wrote this answer seven years ago. Yes, language standards change. If you really must better the world, please add your new answer but leave mine as is. As the answer has my name on it, I'd prefer it to contain my words too. Thank you.
Just so you know isDirectory() is quite a slow method. I'm finding it quite slow in my file browser. I'll be looking into a library to replace it with native code.
You are doing all well. Just you have to check different SMTP ports like 465 and others that works on your system.
Another thing to keep in mind to allow access to the less secure apps by google account otherwise it throws the same error.
I have gone through it for a whole day and the only thing I am doing wrong is the port no., I just changed the port no. and it works.
It is bad form to use this
in lock statements because it is generally out of your control who else might be locking on that object.
In order to properly plan parallel operations, special care should be taken to consider possible deadlock situations, and having an unknown number of lock entry points hinders this. For example, any one with a reference to the object can lock on it without the object designer/creator knowing about it. This increases the complexity of multi-threaded solutions and might affect their correctness.
A private field is usually a better option as the compiler will enforce access restrictions to it, and it will encapsulate the locking mechanism. Using this
violates encapsulation by exposing part of your locking implementation to the public. It is also not clear that you will be acquiring a lock on this
unless it has been documented. Even then, relying on documentation to prevent a problem is sub-optimal.
Finally, there is the common misconception that lock(this)
actually modifies the object passed as a parameter, and in some way makes it read-only or inaccessible. This is false. The object passed as a parameter to lock
merely serves as a key. If a lock is already being held on that key, the lock cannot be made; otherwise, the lock is allowed.
This is why it's bad to use strings as the keys in lock
statements, since they are immutable and are shared/accessible across parts of the application. You should use a private variable instead, an Object
instance will do nicely.
Run the following C# code as an example.
public class Person
{
public int Age { get; set; }
public string Name { get; set; }
public void LockThis()
{
lock (this)
{
System.Threading.Thread.Sleep(10000);
}
}
}
class Program
{
static void Main(string[] args)
{
var nancy = new Person {Name = "Nancy Drew", Age = 15};
var a = new Thread(nancy.LockThis);
a.Start();
var b = new Thread(Timewarp);
b.Start(nancy);
Thread.Sleep(10);
var anotherNancy = new Person { Name = "Nancy Drew", Age = 50 };
var c = new Thread(NameChange);
c.Start(anotherNancy);
a.Join();
Console.ReadLine();
}
static void Timewarp(object subject)
{
var person = subject as Person;
if (person == null) throw new ArgumentNullException("subject");
// A lock does not make the object read-only.
lock (person.Name)
{
while (person.Age <= 23)
{
// There will be a lock on 'person' due to the LockThis method running in another thread
if (Monitor.TryEnter(person, 10) == false)
{
Console.WriteLine("'this' person is locked!");
}
else Monitor.Exit(person);
person.Age++;
if(person.Age == 18)
{
// Changing the 'person.Name' value doesn't change the lock...
person.Name = "Nancy Smith";
}
Console.WriteLine("{0} is {1} years old.", person.Name, person.Age);
}
}
}
static void NameChange(object subject)
{
var person = subject as Person;
if (person == null) throw new ArgumentNullException("subject");
// You should avoid locking on strings, since they are immutable.
if (Monitor.TryEnter(person.Name, 30) == false)
{
Console.WriteLine("Failed to obtain lock on 50 year old Nancy, because Timewarp(object) locked on string \"Nancy Drew\".");
}
else Monitor.Exit(person.Name);
if (Monitor.TryEnter("Nancy Drew", 30) == false)
{
Console.WriteLine("Failed to obtain lock using 'Nancy Drew' literal, locked by 'person.Name' since both are the same object thanks to inlining!");
}
else Monitor.Exit("Nancy Drew");
if (Monitor.TryEnter(person.Name, 10000))
{
string oldName = person.Name;
person.Name = "Nancy Callahan";
Console.WriteLine("Name changed from '{0}' to '{1}'.", oldName, person.Name);
}
else Monitor.Exit(person.Name);
}
}
Console output
'this' person is locked!
Nancy Drew is 16 years old.
'this' person is locked!
Nancy Drew is 17 years old.
Failed to obtain lock on 50 year old Nancy, because Timewarp(object) locked on string "Nancy Drew".
'this' person is locked!
Nancy Smith is 18 years old.
'this' person is locked!
Nancy Smith is 19 years old.
'this' person is locked!
Nancy Smith is 20 years old.
Failed to obtain lock using 'Nancy Drew' literal, locked by 'person.Name' since both are the same object thanks to inlining!
'this' person is locked!
Nancy Smith is 21 years old.
'this' person is locked!
Nancy Smith is 22 years old.
'this' person is locked!
Nancy Smith is 23 years old.
'this' person is locked!
Nancy Smith is 24 years old.
Name changed from 'Nancy Drew' to 'Nancy Callahan'.
If you have a parent-pom anyways, then in my opinion using <dependencyManagement>
just for controlling the version (and maybe scope) is a waste of space and confuses junior developers.
You will probably have properties for versions anyways, in some kind of parent-pom file. Why not just use this properties in the child pom's? That way you can still update a version in the property (within parent-pom) for all child projects at once. That has the same effect as <dependencyManagement>
just without <dependencyManagement>
.
In my opinion, <dependencyManagement>
should be used for "real" management of dependencies, like exclusions and the like.
To my knowledge the use of the keyword new, does relatively the same thing as malloc(sizeof identifier). The code below demonstrates how to use the keyword new.
void main(void){
int* test;
test = tester();
printf("%d",*test);
system("pause");
return;
}
int* tester(void){
int *retMe;
retMe = new int;//<----Here retMe is getting malloc for integer type
*retMe = 12;<---- Initializes retMe... Note * dereferences retMe
return retMe;
}
Using @Marc Gravell 's answer, I found a way to use the following method:
source.TakeWhile(x => x != value).Count();
in order to get -1 when the item cannot be found:
internal static class Utils
{
public static int IndexOf<T>(this IEnumerable<T> enumerable, T item) => enumerable.IndexOf(item, EqualityComparer<T>.Default);
public static int IndexOf<T>(this IEnumerable<T> enumerable, T item, EqualityComparer<T> comparer)
{
int index = enumerable.TakeWhile(x => comparer.Equals(x, item)).Count();
return index == enumerable.Count() ? -1 : index;
}
}
I guess this way could be both the fastest and the simpler. However, I've not tested performances yet.
Similar to another answer here, but change the http in the rewrite to to $scheme like so:
server {
listen 80;
server_name test.com;
rewrite ^ $scheme://www.test.com$request_uri? permanent;
}
And edit your main server block server_name variable as following:
server_name www.test.com;
I had to do this to redirect www.test.com to test.com.
Swift 5
let vc = self.storyboard!.instantiateViewController(withIdentifier: "CVIdentifier")
self.present(vc, animated: true, completion: nil)
Just give an id
to the element and process it normally eg:
<div id="dv">
<a href="#"></a>
<span></span>
</div>
Now you can do like:
var div = document.getElementById('dv');
div.appendChild(......);
Or with jQuery:
$('#dv').get(0).appendChild(........);
I think you conclusions are correct but not accurate.
As the docs indicates, socket.recv
is majorly focused on the network buffers.
When socket is blocking, socket.recv
will return as long as the network buffers have bytes. If bytes in the network buffers are more than socket.recv
can handle, it will return the maximum number of bytes it can handle. If bytes in the network buffers are less than socket.recv
can handle, it will return all the bytes in the network buffers.
The List
interface already has this solved.
int temp = 2;
if(bankAccNos.contains(bakAccNo)) temp=1;
More can be found in the documentation about List.
Just add [mysqld]
as first line in the /etc/mysql/my.cnf
file.
[mysqld]
default-time-zone = "+08:00"
Afterwards, remember to restart your MySQL Service.
sudo mysqld stop
sudo mysqld start
You could also use .toggle()
like so:
$(".pushme").toggle(function() {
$(this).text("DON'T PUSH ME");
}, function() {
$(this).text("PUSH ME");
});
More info at http://api.jquery.com/toggle-event/.
This way also makes it pretty easy to change the text or add more than just 2 differing states.
As stated before it shouldn't be done using client side Javascript but there's a framework for implementing what you want more securely.
Nodejs is a framework that allows you to code server connections in javascript so have a look into Nodejs and you'll probably learn a bit more about communicating with databases and grabbing data you need.
Short answer: You can't.
Long answer:
Due to the way generics is implemented in Java, the generic type T is not kept at runtime. Still, you can use a private data member:
public class Foo<T>
{
private Class<T> type;
public Foo(Class<T> type) { this.type = type; }
}
Usage example:
Foo<Integer> test = new Foo<Integer>(Integer.class);
Yes, you can copy children of one element and paste them into the other element:
var foo1 = jQuery('#foo1');
var foo2 = jQuery('#foo2');
foo1.html(foo2.children().clone());
Proof: http://jsfiddle.net/de9kc/
To get the lines that contain the texts 8768
, 9875
or 2353
, use:
^.*(8768|9875|2353).*$
What it means:
^ from the beginning of the line
.* get any character except \n (0 or more times)
(8768|9875|2353) if the line contains the string '8768' OR '9875' OR '2353'
.* and get any character except \n (0 or more times)
$ until the end of the line
If you do want the literal *
char, you'd have to escape it:
^.*(\*8768|\*9875|\*2353).*$
For those who tried gkalpak answer and it did not work,
be aware that chrome will add the content script to a needed page only when your extension enabled during chrome launch and also a good idea restart browser after making these changes
If you're running cPanel/WHM, make sure that IP is whitelisted in the firewall. You will als need to add that IP to the remote SQL IP list in the cPanel account you're trying to connect to.
First, Google created the "use less secure accounts method" function:
https://myaccount.google.com/security
Then created the another permission:
https://accounts.google.com/b/0/DisplayUnlockCaptcha
Hope it helps.
Try this example
CREATE PROCEDURE MyProc
BEGIN
--Stored Procedure variables
Declare @maxOr int;
Declare @maxCa int;
--Getting query result in the variable (first variant of syntax)
SET @maxOr = (SELECT MAX(orId) FROM [order]);
--Another variant of seting variable from query
SELECT @maxCa=MAX(caId) FROM [cart];
--Updating record through the variable
INSERT INTO [order_cart] (orId,caId)
VALUES(@maxOr, @maxCa);
--return values to the program as dataset
SELECT
@maxOr AS maxOr,
@maxCa AS maxCa
-- return one int value as "return value"
RETURN @maxOr
END
GO
SQL-command to call the stored procedure
EXEC MyProc
The angular new version does not support .map you have to install this through cmd npm install --save rxjs-compat via this you can enjoy with old technique . note: don't forget to import these lines.
import { Observable, Subject } from 'rxjs';
import 'rxjs/add/operator/map';
import 'rxjs/add/operator/catch';
API level is basically the Android version. Instead of using the Android version name (eg 2.0, 2.3, 3.0, etc) an integer number is used. This number is increased with each version. Android 1.6 is API Level 4, Android 2.0 is API Level 5, Android 2.0.1 is API Level 6, and so on.
To remove bullet from UL
you can simply use list-style: none;
or list-style-type: none;
If still not works then i guess there is an issue of priority CSS. May be globally UL already defined. So best way add a class/ID to that particular UL and add your CSS there. Hope it will works.
Because @User and @BiXiC asked for help with UTF-8 here a variation of the solution by @Matthew. (I'm not allowed to comment, so I'm answering.)
import unicodecsv as csv
toCSV = [{'name':'bob','age':25,'weight':200},
{'name':'jim','age':31,'weight':180}]
keys = toCSV[0].keys()
with open('people.csv', 'wb') as output_file:
dict_writer = csv.DictWriter(output_file, keys)
dict_writer.writeheader()
dict_writer.writerows(toCSV)
Those do both mean non-breaking space, yes.  
is another synonym, in hex.
According to Flexbugs:
In IE 10-11,
min-height
declarations on flex containers work to size the containers themselves, but their flex item children do not seem to know the size of their parents. They act as if no height has been set at all.
Here are a couple of workarounds:
<aside>
and <section>
:html {
height: 100%;
}
body {
display: flex;
flex-direction: column;
height: 100%;
margin: 0;
}
header,
footer {
background: #7092bf;
}
main {
flex: 1;
display: flex;
}
aside, section {
overflow: auto;
}
aside {
flex: 0 0 150px;
background: #3e48cc;
}
section {
flex: 1;
background: #9ad9ea;
}
_x000D_
<header>
<p>header</p>
</header>
<main>
<aside>
<p>aside</p>
</aside>
<section>
<p>content</p>
<p>content</p>
<p>content</p>
<p>content</p>
<p>content</p>
<p>content</p>
<p>content</p>
<p>content</p>
<p>content</p>
<p>content</p>
</section>
</main>
<footer>
<p>footer</p>
</footer>
_x000D_
html {
height: 100%;
}
body {
display: flex;
flex-direction: column;
height: 100%;
margin: 0;
}
header,
footer {
background: #7092bf;
}
main {
flex: 1 0 auto;
display: flex;
}
aside {
flex: 0 0 150px;
background: #3e48cc;
}
section {
flex: 1;
background: #9ad9ea;
}
_x000D_
<header>
<p>header</p>
</header>
<main>
<aside>
<p>aside</p>
</aside>
<section>
<p>content</p>
<p>content</p>
<p>content</p>
<p>content</p>
<p>content</p>
<p>content</p>
<p>content</p>
<p>content</p>
<p>content</p>
<p>content</p>
</section>
</main>
<footer>
<p>footer</p>
</footer>
_x000D_
Or you could try this
try {
BeanInfo bi = Introspector.getBeanInfo(User.getClass());
PropertyDescriptor[] properties = bi.getPropertyDescriptors();
for(PropertyDescriptor property : properties) {
//One way
for(Annotation annotation : property.getAnnotations()){
if(annotation instanceof Column) {
String string = annotation.name();
}
}
//Other way
Annotation annotation = property.getAnnotation(Column.class);
String string = annotation.name();
}
}catch (IntrospectonException ie) {
ie.printStackTrace();
}
Hope this will help.
Find the custom validator for min number validation. The selector name of our directive is customMin.
custom-min-validator.directive.ts
import { Directive, Input } from '@angular/core';
import { NG_VALIDATORS, Validator, FormControl } from '@angular/forms';
@Directive({
selector: '[customMin][formControlName],[customMin][formControl],[customMin][ngModel]',
providers: [{provide: NG_VALIDATORS, useExisting: CustomMinDirective, multi: true}]
})
export class CustomMinDirective implements Validator {
@Input()
customMin: number;
validate(c: FormControl): {[key: string]: any} {
let v = c.value;
return ( v < this.customMin)? {"customMin": true} : null;
}
}
Find the custom validator for max number validation. The selector name of our directive is customMax.
custom-max-validator.directive.ts
import { Directive, Input } from '@angular/core';
import { NG_VALIDATORS, Validator, FormControl } from '@angular/forms';
@Directive({
selector: '[customMax][formControlName],[customMax][formControl],[customMax][ngModel]',
providers: [{provide: NG_VALIDATORS, useExisting: CustomMaxDirective, multi: true}]
})
export class CustomMaxDirective implements Validator {
@Input()
customMax: number;
validate(c: FormControl): {[key: string]: any} {
let v = c.value;
return ( v > this.customMax)? {"customMax": true} : null;
}
}
We can use customMax with formControlName, formControl and ngModel attributes.
Using Custom Min and Max Validator in Template-driven Form
We will use our custom min and max validator in template-driven form. For min number validation we have customMin attribute and for max number validation we have customMax attribute. Now find the code snippet for validation.
<input name="num1" [ngModel]="user.num1" customMin="15" #numberOne="ngModel">
<input name="num2" [ngModel]="user.num2" customMax="50" #numberTwo="ngModel">
We can show validation error messages as following.
<div *ngIf="numberOne.errors?.customMin">
Minimum required number is 15.
</div>
<div *ngIf="numberTwo.errors?.customMax">
Maximum number can be 50.
</div>
To assign min and max number we can also use property biding. Suppose we have following component properties.
minNum = 15;
maxNum = 50;
Now use property binding for customMin and customMax as following.
<input name="num1" [ngModel]="user.num1" [customMin]="minNum" #numberOne="ngModel">
<input name="num2" [ngModel]="user.num2" [customMax]="maxNum" #numberTwo="ngModel">
I resolve this is by changing the version no of recyleview to recyclerview-v7:24.2.1. Please check your dependencies and use the proper version number.
I'm not aware of any way to programmatically create these URLs, but the existing username space (www.facebook.com/something) works on fb.me also (e.g. http://fb.me/facebook )
Use insert
:
In [1]: ls = [1,2,3]
In [2]: ls.insert(0, "new")
In [3]: ls
Out[3]: ['new', 1, 2, 3]
Add disabled Class in your anchor, following are js:
$('.navbar .dropdown-toggle').hover(function() {
$(this).addClass('disabled');
});
But this is not mobile friendly so you need to remove disabled class for mobile, so updated js code is following:
$('.navbar .dropdown-toggle').hover(function() {
if (document.documentElement.clientWidth > 769) { $(this).addClass('disabled');}
else { $(this).removeClass('disabled'); }
});
It depends on if you want to pass the vector
as a reference or as a pointer (I am disregarding the option of passing it by value as clearly undesirable).
As a reference:
int binarySearch(int first, int last, int search4, vector<int>& random);
vector<int> random(100);
// ...
found = binarySearch(first, last, search4, random);
As a pointer:
int binarySearch(int first, int last, int search4, vector<int>* random);
vector<int> random(100);
// ...
found = binarySearch(first, last, search4, &random);
Inside binarySearch
, you will need to use .
or ->
to access the members of random
correspondingly.
Issues with your current code
binarySearch
expects a vector<int>*
, but you pass in a vector<int>
(missing a &
before random
)binarySearch
before using it (for example, random[mid]
should be (*random)[mid]
using namespace std;
after the <include>
sfirst
and last
are wrong (should be 0 and 99 instead of random[0]
and random[99]
Visual select the text, then U for uppercase or u for lowercase. To swap all casing in a visual selection, press ~ (tilde).
Without using a visual selection, gU<motion>
will make the characters in motion
uppercase, or use gu<motion>
for lowercase.
For more of these, see Section 3 in Vim's change.txt help file.
@tableName
Table variables are alive for duration of the script running only i.e. they are only session level objects.
To test this, open two query editor windows under sql server management studio, and create table variables with same name but different structures. You will get an idea. The @tableName
object is thus temporary and used for our internal processing of data, and it doesn't contribute to the actual database structure.
There is another type of table object which can be created for temporary use. They are #tableName
objects declared like similar create statement for physical tables:
Create table #test (Id int, Name varchar(50))
This table object is created and stored in temp database. Unlike the first one, this object is more useful, can store large data and takes part in transactions etc. These tables are alive till the connection is open. You have to drop the created object by following script before re-creating it.
IF OBJECT_ID('tempdb..#test') IS NOT NULL
DROP TABLE #test
Hope this makes sense !
At least as of CKEDITOR 4.4.5, you can set up a listener for every change to the editor's contents, rather than running a timer:
CKEDITOR.on("instanceCreated", function(event) {
event.editor.on("change", function () {
$("#trackingDiv").html(event.editor.getData());
});
});
I realize this may be too late for the OP, and doesn't show as the correct answer or have any votes (yet), but I thought I'd update the post for future readers.
When checking for white space the c# method uses the Unicode standard. White space includes spaces, tabs, carriage returns and many other non-printing character codes. So you are better of using:
function isNullOrWhiteSpace(str){
return str == null || str.replace(/\s/g, '').length < 1;
}
To open from with button click please add the following code in the button event handler
var m = new Form1();
m.Show();
Here Form1 is the name of the form which you want to open.
Also to close the current form, you may use
this.close();
You can also use LocalBroadcast
for this purpose. Here is a quick guide
Create a broadcast receiver:
LocalBroadcastManager.getInstance(this).registerReceiver(
mMessageReceiver, new IntentFilter("speedExceeded"));
private BroadcastReceiver mMessageReceiver = new BroadcastReceiver() {
@Override
public void onReceive(Context context, Intent intent) {
String action = intent.getAction();
Double currentSpeed = intent.getDoubleExtra("currentSpeed", 20);
Double currentLatitude = intent.getDoubleExtra("latitude", 0);
Double currentLongitude = intent.getDoubleExtra("longitude", 0);
// ... react to local broadcast message
}
This is how you can trigger it
Intent intent = new Intent("speedExceeded");
intent.putExtra("currentSpeed", currentSpeed);
intent.putExtra("latitude", latitude);
intent.putExtra("longitude", longitude);
LocalBroadcastManager.getInstance(this).sendBroadcast(intent);
unRegister receiver in onPause:
protected void onPause() {
super.onPause();
LocalBroadcastManager.getInstance(this).unregisterReceiver(mMessageReceiver);
}
public static bool ContainsAny(this string haystack, IEnumerable<string> needles)
{
return needles.Any(haystack.Contains);
}
To quickly extract the values for a particular key, I personally like to use "grep -o", which only returns the regex's match. For example, to get the "text" field from tweets, something like:
grep -Po '"text":.*?[^\\]",' tweets.json
This regex is more robust than you might think; for example, it deals fine with strings having embedded commas and escaped quotes inside them. I think with a little more work you could make one that is actually guaranteed to extract the value, if it's atomic. (If it has nesting, then a regex can't do it of course.)
And to further clean (albeit keeping the string's original escaping) you can use something like: | perl -pe 's/"text"://; s/^"//; s/",$//'
. (I did this for this analysis.)
To all the haters who insist you should use a real JSON parser -- yes, that is essential for correctness, but
grep -o
is orders of magnitude faster than the Python standard json
library, at least when doing this for tweets (which are ~2 KB each). I'm not sure if this is just because json
is slow (I should compare to yajl sometime); but in principle, a regex should be faster since it's finite state and much more optimizable, instead of a parser that has to support recursion, and in this case, spends lots of CPU building trees for structures you don't care about. (If someone wrote a finite state transducer that did proper (depth-limited) JSON parsing, that would be fantastic! In the meantime we have "grep -o".)To write maintainable code, I always use a real parsing library. I haven't tried jsawk, but if it works well, that would address point #1.
One last, wackier, solution: I wrote a script that uses Python json
and extracts the keys you want, into tab-separated columns; then I pipe through a wrapper around awk
that allows named access to columns. In here: the json2tsv and tsvawk scripts. So for this example it would be:
json2tsv id text < tweets.json | tsvawk '{print "tweet " $id " is: " $text}'
This approach doesn't address #2, is more inefficient than a single Python script, and it's a little brittle: it forces normalization of newlines and tabs in string values, to play nice with awk's field/record-delimited view of the world. But it does let you stay on the command line, with more correctness than grep -o
.
std::fill(a.begin(),a.end(),0);
Facing the very same problem (avoiding the default path in a network) I came up to this solution with the hints given in other answers.
The solution is editing the Rprofile
file to overwrite the variable R_LIBS_USER
which by default points to the home directory.
Here the steps:
~\target
.Rprofile
file. In my case it was at C:\Program Files\R\R-3.3.3\library\base\R\Rprofile
.R_LIBS_USER
. In my case, I replaced the this line file.path(Sys.getenv("R_USER"), "R",
with file.path("~\target", "R",
.The documentation that support this solution is here
Original file with:
if(!nzchar(Sys.getenv("R_LIBS_USER")))
Sys.setenv(R_LIBS_USER=
file.path(Sys.getenv("R_USER"), "R",
"win-library",
paste(R.version$major,
sub("\\..*$", "", R.version$minor),
sep=".")
))
Modified file:
if(!nzchar(Sys.getenv("R_LIBS_USER")))
Sys.setenv(R_LIBS_USER=
file.path("~\target", "R",
"win-library",
paste(R.version$major,
sub("\\..*$", "", R.version$minor),
sep=".")
))
The easiest way:
mysql -u root -p YOUR_DATABASE
Enter this and you'll need to type your password in.
Note: Yes, without a semicolon.
Be careful using the answer provide by @DevNG. Arrays.asList() returns internal implementation of ArrayList that doesn't implement some useful methods like add(), delete(), etc. If you call them an UnsupportedOperationException will be thrown. In order to get real ArrayList instance you need to write something like this:
List<Video> = new ArrayList<>(Arrays.asList(videoArray));
There is an article on javaworld.com that explains the difference => Which ClassLoader should you use
(1)
Thread context classloaders provide a back door around the classloading delegation scheme.
Take JNDI for instance: its guts are implemented by bootstrap classes in rt.jar (starting with J2SE 1.3), but these core JNDI classes may load JNDI providers implemented by independent vendors and potentially deployed in the application's -classpath. This scenario calls for a parent classloader (the primordial one in this case) to load a class visible to one of its child classloaders (the system one, for example). Normal J2SE delegation does not work, and the workaround is to make the core JNDI classes use thread context loaders, thus effectively "tunneling" through the classloader hierarchy in the direction opposite to the proper delegation.
(2) from the same source:
This confusion will probably stay with Java for some time. Take any J2SE API with dynamic resource loading of any kind and try to guess which loading strategy it uses. Here is a sampling:
- JNDI uses context classloaders
- Class.getResource() and Class.forName() use the current classloader
- JAXP uses context classloaders (as of J2SE 1.4)
- java.util.ResourceBundle uses the caller's current classloader
- URL protocol handlers specified via java.protocol.handler.pkgs system property are looked up in the bootstrap and system classloaders only
- Java Serialization API uses the caller's current classloader by default
The correct way to change directories is actually with process.chdir(directory)
. Here's an example from the documentation:
console.log('Starting directory: ' + process.cwd());
try {
process.chdir('/tmp');
console.log('New directory: ' + process.cwd());
}
catch (err) {
console.log('chdir: ' + err);
}
This is also testable in the Node.js REPL:
[monitor@s2 ~]$ node
> process.cwd()
'/home/monitor'
> process.chdir('../');
undefined
> process.cwd();
'/home'
len
is a built-in function that calls the given container object's __len__
member function to get the number of elements in the object.
Functions encased with double underscores are usually "special methods" implementing one of the standard interfaces in Python (container, number, etc). Special methods are used via syntactic sugar (object creation, container indexing and slicing, attribute access, built-in functions, etc.).
Using obj.__len__()
wouldn't be the correct way of using the special method, but I don't see why the others were modded down so much.
There's pycron which I really as a Cron implementation for windows, but there's also the built in scheduler which should work just fine for what you need (Control Panel -> Scheduled Tasks -> Add Scheduled Task).
Just follow these Steps :
If you want the contents of, say, C1 to mirror the contents of cell A1, you just need to set the formula in C1 to =A1. From this point forward, anything you type in A1 will show up in C1 as well.
To Link Multiple Cells in Excel From Another Worksheet :
Step 1
Click the worksheet tab at the bottom of the screen that contains a range of precedent cells to which you want to link. A range is a block or group of adjacent cells. For example, assume you want to link a range of blank cells in “Sheet1” to a range of precedent cells in “Sheet2.” Click the “Sheet2” tab.
Step 2
Determine the precedent range’s width in columns and height in rows. In this example, assume cells A1 through A4 on “Sheet2” contain a list of numbers 1, 2, 3 and 4, respectively, which will be your precedent cells. This precedent range is one column wide by four rows high.
Step 3
Click the worksheet tab at the bottom of the screen that contains the blank cells in which you will insert a link. In this example, click the “Sheet1” tab.
Step 4
Select the range of blank cells you want to link to the precedent cells. This range must be the same size as the precedent range, but can be in a different location on the worksheet. Click and hold the mouse button on the top left cell of the range, drag the mouse cursor to the bottom right cell in the range and release the mouse button to select the range. In this example, assume you want to link cells C1 through C4 to the precedent range. Click and hold on cell C1, drag the mouse to cell C4 and release the mouse to highlight the range.
Step 5
Type “=,” the worksheet name containing the precedent cells, “!,” the top left cell of the precedent range, “:” and the bottom right cell of the precedent range. Press “Ctrl,” “Shift” and “Enter” simultaneously to complete the array formula. Each dependent cell is now linked to the cell in the precedent range that’s in the same respective location within the range. In this example, type “=Sheet2!A1:A4” and press “Ctrl,” “Shift” and “Enter” simultaneously. Cells C1 through C4 on “Sheet1” now contain the array formula “{=Sheet2!A1:A4}” surrounded by curly brackets, and show the same data as the precedent cells in “Sheet2.”
Good Luck !!!
Go and Check if a user is created or not if no please create a user by opening a file in /apache-tomcat-9.0.20/tomcat-users.xml add a line into it
<user username="tomcat" password="tomcat" roles="admin-gui,manager-gui,manager-script" />
Goto /apache-tomcat-9.0.20/webapps/manager/META-INF/ open context.xml comment everything in context tag example:
<Context antiResourceLocking="false" privileged="true" >
<!--Valve className="org.apache.catalina.valves.RemoteAddrValve"
allow="127\.\d+\.\d+\.\d+|::1|0:0:0:0:0:0:0:1" /-->
</Context>
I thought my issue was due to my machine.config per answers I found online but the culprit turned out to be in the project's web.config that was clearing out the DbProviderFactories.
<system.data>
<DbProviderFactories>
<clear />
...
</DbProviderFactories>
</system.data>
Better to turn on core dump programmatically using system call setrlimit
.
example:
#include <sys/resource.h>
bool enable_core_dump(){
struct rlimit corelim;
corelim.rlim_cur = RLIM_INFINITY;
corelim.rlim_max = RLIM_INFINITY;
return (0 == setrlimit(RLIMIT_CORE, &corelim));
}
Is this the kind of thing you want? You might want to extend it to get more info out of the sys tables.
use master DECLARE @name VARCHAR(50) -- database name DECLARE db_cursor CURSOR FOR select name from sys.databases OPEN db_cursor FETCH NEXT FROM db_cursor INTO @name WHILE @@FETCH_STATUS = 0 BEGIN print @name exec('USE ' + @name + '; select rp.name, mp.name from sys.database_role_members drm join sys.database_principals rp on (drm.role_principal_id = rp.principal_id) join sys.database_principals mp on (drm.member_principal_id = mp.principal_id)') FETCH NEXT FROM db_cursor INTO @name END CLOSE db_cursor DEALLOCATE db_cursor
The most elegant way to fix this: use pipe. Here is example (my blog). So you can then simply use url | safe
pipe to bypass the security.
<iframe [src]="url | safe"></iframe>
Refer to the documentation on npm for details: https://www.npmjs.com/package/safe-pipe
The best (technical) summary imo is this one
IRI, URI, URL, URN and their differences from Jan Martin Keil:
Everybody dealing with the Semantic Web repeatedly comes across the terms IRI, URI, URL and URN. Nevertheless, I frequently observe that there is some confusion about their exact meaning. And, of course, others noticed that as well (see e.g. RFC3305 or search on Google). To be honest, I even was confused myself at the outset. But actually the issue is not that complex. Let’s have a look on the definitions of the mentioned terms to see what the differences are:
A Uniform Resource Identifier is a compact sequence of characters that identifies an abstract or physical resource. The set of characters is limited to US-ASCII excluding some reserved characters. Characters outside the set of allowed characters can be represented using Percent-Encoding. A URI can be used as a locator, a name, or both. If a URI is a locator, it describes a resource’s primary access mechanism. If a URI is a name, it identifies a resource by giving it a unique name. The exact specifications of syntax and semantics of a URI depend on the used Scheme that is defined by the characters before the first colon. [RFC3986]
A Uniform Resource Name is a URI in the scheme urn intended to serve as persistent, location-independent, resource identifier. Historically, the term also referred to any URI. [RFC3986] A URN consists of a Namespace Identifier (NID) and a Namespace Specific String (NSS): urn:: The syntax and semantics of the NSS is specific specific for each NID. Beside the registered NIDs, there exist several more NIDs, that did not go through the official registration process. [RFC2141]
A Uniform Resource Locator is a URI that, in addition to identifying a resource, provides a means of locating the resource by describing its primary access mechanism [RFC3986]. As there is no exact definition of URL by means of a set of Schemes, "URL is a useful but informal concept", usually referring to a subset of URIs that do not contain URNs [RFC3305].
An Internationalized Resource Identifier is defined similarly to a URI, but the character set is extended to the Universal Coded Character Set. Therefore, it can contain any Latin and non Latin characters except the reserved characters. Instead of extending the definition of URI, the term IRI was introduced to allow for a clear distinction and avoid incompatibilities. IRIs are meant to replace URIs in identifying resources in situations where the Universal Coded Character Set is supported. By definition, every URI is an IRI. Furthermore, there is a defined surjective mapping of IRIs to URIs: Every IRI can be mapped to exactly one URI, but different IRIs might map to the same URI. Therefore, the conversion back from a URI to an IRI may not produce the original IRI. [RFC3987]
IRI is a superset of URI (IRI ? URI)
URI is a superset of URL (URI ? URL)
URI is a superset of URN (URI ? URN)
URL and URN are disjoint (URL n URN = Ø)
RDF explicitly allows to use IRIs to name entities [RFC3987]. This means that we can use almost every character in entity names. On the other hand, we often have to deal with early state software. Thus, it is not unlikely to run into problems using non ASCII characters. Therefore, I suggest to avoid non URI names for entities and recommend to use http URIs [LINKED-DATA]. To put it briefly: only use URLs to name your entities. Of course, we can refer to existing entities named by a URN. However, we should avoid to newly create this kind of identifiers.
To find the item that has a name, should I just use a for loop, and when the item is found, return the element position in the ArrayList?
Yes to the loop (either using indexes or an Iterator
). On the return value, either return its index, or the item iteself, depending on your needs. ArrayList
doesn't have an indexOf
(Object target, Comparator compare)` or similar. Now that Java is getting lambda expressions (in Java 8, ~March 2014), I expect we'll see APIs get methods that accept lambdas for things like this.
There are 3 solutions available for these.
1) Enable remote login using below command - sudo systemsetup -setremotelogin on
2) In Mac, go to System Preference -> Sharing -> enable Remote Login that's it. 100% working solution
3) Final and most important solution is - Check your private area network connection . Sometime remote login isn't allow inside the local area network.
Kindly try to connect your machine using personal network like mobile network, Hotspot etc.
Despite the plethora of wrong answers here that attempt to circumvent the error by numerically manipulating the predictions, the root cause of your error is a theoretical and not computational issue: you are trying to use a classification metric (accuracy) in a regression (i.e. numeric prediction) model (LinearRegression
), which is meaningless.
Just like the majority of performance metrics, accuracy compares apples to apples (i.e true labels of 0/1 with predictions again of 0/1); so, when you ask the function to compare binary true labels (apples) with continuous predictions (oranges), you get an expected error, where the message tells you exactly what the problem is from a computational point of view:
Classification metrics can't handle a mix of binary and continuous target
Despite that the message doesn't tell you directly that you are trying to compute a metric that is invalid for your problem (and we shouldn't actually expect it to go that far), it is certainly a good thing that scikit-learn at least gives you a direct and explicit warning that you are attempting something wrong; this is not necessarily the case with other frameworks - see for example the behavior of Keras in a very similar situation, where you get no warning at all, and one just ends up complaining for low "accuracy" in a regression setting...
I am super-surprised with all the other answers here (including the accepted & highly upvoted one) effectively suggesting to manipulate the predictions in order to simply get rid of the error; it's true that, once we end up with a set of numbers, we can certainly start mingling with them in various ways (rounding, thresholding etc) in order to make our code behave, but this of course does not mean that our numeric manipulations are meaningful in the specific context of the ML problem we are trying to solve.
So, to wrap up: the problem is that you are applying a metric (accuracy) that is inappropriate for your model (LinearRegression
): if you are in a classification setting, you should change your model (e.g. use LogisticRegression
instead); if you are in a regression (i.e. numeric prediction) setting, you should change the metric. Check the list of metrics available in scikit-learn, where you can confirm that accuracy is used only in classification.
Compare also the situation with a recent SO question, where the OP is trying to get the accuracy of a list of models:
models = []
models.append(('SVM', svm.SVC()))
models.append(('LR', LogisticRegression()))
models.append(('LDA', LinearDiscriminantAnalysis()))
models.append(('KNN', KNeighborsClassifier()))
models.append(('CART', DecisionTreeClassifier()))
models.append(('NB', GaussianNB()))
#models.append(('SGDRegressor', linear_model.SGDRegressor())) #ValueError: Classification metrics can't handle a mix of binary and continuous targets
#models.append(('BayesianRidge', linear_model.BayesianRidge())) #ValueError: Classification metrics can't handle a mix of binary and continuous targets
#models.append(('LassoLars', linear_model.LassoLars())) #ValueError: Classification metrics can't handle a mix of binary and continuous targets
#models.append(('ARDRegression', linear_model.ARDRegression())) #ValueError: Classification metrics can't handle a mix of binary and continuous targets
#models.append(('PassiveAggressiveRegressor', linear_model.PassiveAggressiveRegressor())) #ValueError: Classification metrics can't handle a mix of binary and continuous targets
#models.append(('TheilSenRegressor', linear_model.TheilSenRegressor())) #ValueError: Classification metrics can't handle a mix of binary and continuous targets
#models.append(('LinearRegression', linear_model.LinearRegression())) #ValueError: Classification metrics can't handle a mix of binary and continuous targets
where the first 6 models work OK, while all the rest (commented-out) ones give the same error. By now, you should be able to convince yourself that all the commented-out models are regression (and not classification) ones, hence the justified error.
A last important note: it may sound legitimate for someone to claim:
OK, but I want to use linear regression and then just round/threshold the outputs, effectively treating the predictions as "probabilities" and thus converting the model into a classifier
Actually, this has already been suggested in several other answers here, implicitly or not; again, this is an invalid approach (and the fact that you have negative predictions should have already alerted you that they cannot be interpreted as probabilities). Andrew Ng, in his popular Machine Learning course at Coursera, explains why this is a bad idea - see his Lecture 6.1 - Logistic Regression | Classification at Youtube (explanation starts at ~ 3:00), as well as section 4.2 Why Not Linear Regression [for classification]? of the (highly recommended and freely available) textbook An Introduction to Statistical Learning by Hastie, Tibshirani and coworkers...
In the call back function, use the $request parameter
$parameters = $request->get_params();
echo $parameters['ppc'];
Sample of the Recursive Level:
DECLARE @VALUE_CODE AS VARCHAR(5);
--SET @VALUE_CODE = 'A' -- Specify a level
WITH ViewValue AS
(
SELECT ValueCode
, ValueDesc
, PrecedingValueCode
FROM ValuesTable
WHERE PrecedingValueCode IS NULL
UNION ALL
SELECT A.ValueCode
, A.ValueDesc
, A.PrecedingValueCode
FROM ValuesTable A
INNER JOIN ViewValue V ON
V.ValueCode = A.PrecedingValueCode
)
SELECT ValueCode, ValueDesc, PrecedingValueCode
FROM ViewValue
--WHERE PrecedingValueCode = @VALUE_CODE -- Specific level
--WHERE PrecedingValueCode IS NULL -- Root
Try this:
valgrind --leak-check=full -v ./your_program
As long as valgrind is installed it will go through your program and tell you what's wrong. It can give you pointers and approximate places where your leaks may be found. If you're segfault'ing, try running it through gdb
.
I've similar issue and resolved by creating custom class by extending with ListView.
ScrollableListView.java
import android.content.Context;
import android.util.AttributeSet;
import android.widget.ListView;
public class ScrollableListView extends ListView {
public ScrollableListView (Context context, AttributeSet attrs) {
super(context, attrs);
}
public ScrollableListView (Context context) {
super(context);
}
public ScrollableListView (Context context, AttributeSet attrs, int defStyle) {
super(context, attrs, defStyle);
}
@Override
public void onMeasure(int widthMeasureSpec, int heightMeasureSpec) {
int expandSpec = MeasureSpec.makeMeasureSpec(Integer.MAX_VALUE >> 2,
MeasureSpec.AT_MOST);
super.onMeasure(widthMeasureSpec, expandSpec);
}
}
Usage:
<com.my.package.ScrollableListView
android:id="@+id/listview"
android:layout_width="match_parent"
android:layout_height="wrap_content"/>
Because my keyboard has an O key.
It does not have a T or an O key.
I suspect most people are similarly lazy and use O when they mean T because it's easier to type.
This could be done simpler:
<base href="${pageContext.request.contextPath}/"/>
All URL will be formed without unnecessary domain:port
but with application context.
Disconnect the "templated" database that you want to use as a template.
Run 2 queries as below
SELECT pg_terminate_backend(pg_stat_activity.pid)
FROM pg_stat_activity
WHERE pg_stat_activity.datname = 'TemplateDB' AND pid <> pg_backend_pid();
(The above SQL statement will terminate all active sessions with TemplateDB and then you can now select it as the template to create the new TargetDB database, this avoids getting the already in use error.)
CREATE DATABASE 'TargetDB'
WITH TEMPLATE='TemplateDB'
CONNECTION LIMIT=-1;
is
compares identity. A string will never be identical to a not-string.
==
is equality. But a string will never be equal to either True
or False
.
You want neither.
path = '/bla/bla/bla'
if path:
print "True"
else:
print "False"
You can use standard STL function distance as mentioned before
index = std::distance(s.begin(), it);
Also, you can access string and some other containers with the c-like interface:
for (i=0;i<string1.length();i++) string1[i];
another solution is catching onClick event and for aggregate data to js function you can
.hmtl.erb
<%= link_to "Action", 'javascript:;', class: 'my-class', data: { 'array' => %w(foo bar) } %>
.js
// handle my-class click
$('a.my-class').on('click', function () {
var link = $(this);
var array = link.data('array');
});
var connect = require('connect');
var serveStatic = require('serve-static');
var app = connect();
app.use(serveStatic('../angularjs'), {default: 'angular.min.js'}); app.listen(3000);
What worked for me is:
sudo mkdir /var/run/sshd
sudo apt-get install --reinstall openssh-server
I tried all the above mentioned solutions but somehow this directory /var/run/sshd was still missing for me. I have Ubuntu 16.04.4 LTS. Hope my answer helps if someone has the same issue. ubuntu sshxenial
I had this problem as well, it turned out it was because of NetBeans adding something to my pom.xml file. Double check nothing was added since previous successful deployments.
Another way to get this error is to build using ant
on macOS and have a Finder icon file (Icon\r
) in the source tree of the app. It appears jarsigner
can't cope with the carriage return in the filename and, although it will claim the signing is valid if you -verify
the APK, it always results in an APK that wont install on a device. Ironically, the Google Drive Finder plugin is a great source of Finder icon files.
The solution is to exclude the offending files (which are useless in the APK anyway) with a specifier like this in the fileset
:
<exclude name="**/Icon " />
Here is the smallest code snippet to test DOM ready which works across all browsers (even IE 8):
r(function(){
alert('DOM Ready!');
});
function r(f){/in/.test(document.readyState)?setTimeout('r('+f+')',9):f()}
See this answer.
I tried many steps to get this issue corrected. There are so many sources for possible solutions to this issue that is is hard to filter out the sense from the nonsense. I finally found a good solution here:
Step 1: Identify the Database Version
$ mysql --version
You'll see some output like this with MySQL:
$ mysql Ver 14.14 Distrib 5.7.16, for Linux (x86_64) using EditLine wrapper
Or output like this for MariaDB:
mysql Ver 15.1 Distrib 5.5.52-MariaDB, for Linux (x86_64) using readline 5.1
Make note of which database and which version you're running, as you'll use them later. Next, you need to stop the database so you can access it manually.
Step 2: Stopping the Database Server
To change the root password, you have to shut down the database server beforehand.
You can do that for MySQL with:
$ sudo systemctl stop mysql
And for MariaDB with:
$ sudo systemctl stop mariadb
Step 3: Restarting the Database Server Without Permission Checking
If you run MySQL and MariaDB without loading information about user privileges, it will allow you to access the database command line with root privileges without providing a password. This will allow you to gain access to the database without knowing it.
To do this, you need to stop the database from loading the grant tables, which store user privilege information. Because this is a bit of a security risk, you should also skip networking as well to prevent other clients from connecting.
Start the database without loading the grant tables or enabling networking:
$ sudo mysqld_safe --skip-grant-tables --skip-networking &
The ampersand at the end of this command will make this process run in the background so you can continue to use your terminal.
Now you can connect to the database as the root user, which should not ask for a password.
$ mysql -u root
You'll immediately see a database shell prompt instead.
MySQL Prompt
Type 'help;' or '\h' for help. Type '\c' to clear the current input statement.
mysql>
MariaDB Prompt
Type 'help;' or '\h' for help. Type '\c' to clear the current input statement.
MariaDB [(none)]>
Now that you have root access, you can change the root password.
Step 4: Changing the Root Password
mysql> FLUSH PRIVILEGES;
Now we can actually change the root password.
For MySQL 5.7.6 and newer as well as MariaDB 10.1.20 and newer, use the following command:
mysql> ALTER USER 'root'@'localhost' IDENTIFIED BY 'new_password';
For MySQL 5.7.5 and older as well as MariaDB 10.1.20 and older, use:
mysql> SET PASSWORD FOR 'root'@'localhost' = PASSWORD('new_password');
Make sure to replace new_password
with your new password of choice.
Note: If the ALTER USER
command doesn't work, it's usually indicative of a bigger problem. However, you can try UPDATE ... SET
to reset the root password instead.
[IMPORTANT] This is the specific line that fixed my particular issue:
mysql> UPDATE mysql.user SET authentication_string = PASSWORD('new_password') WHERE User = 'root' AND Host = 'localhost';
Remember to reload the grant tables after this.
In either case, you should see confirmation that the command has been successfully executed.
Query OK, 0 rows affected (0.00 sec)
The password has been changed, so you can now stop the manual instance of the database server and restart it as it was before.
Step 5: Restart the Database Server Normally
The tutorial goes into some further steps to restart the database, but the only piece I used was this:
For MySQL, use: $ sudo systemctl start mysql
For MariaDB, use:
$ sudo systemctl start mariadb
Now you can confirm that the new password has been applied correctly by running:
$ mysql -u root -p
The command should now prompt for the newly assigned password. Enter it, and you should gain access to the database prompt as expected.
Conclusion
You now have administrative access to the MySQL or MariaDB server restored. Make sure the new root password you choose is strong and secure and keep it in safe place.
This is because in this case the char
type is signed on your system*. When this happens, the data gets sign-extended during the default conversions while passing the data to the function with variable number of arguments. Since 212 is greater than 0x80, it's treated as negative, %u
interprets the number as a large positive number:
212 = 0xD4
When it is sign-extended, FF
s are pre-pended to your number, so it becomes
0xFFFFFFD4 = 4294967252
which is the number that gets printed.
Note that this behavior is specific to your implementation. According to C99 specification, all char
types are promoted to (signed) int
, because an int
can represent all values of a char
, signed or unsigned:
6.1.1.2: If an
int
can represent all values of the original type, the value is converted to anint
; otherwise, it is converted to anunsigned int
.
This results in passing an int
to a format specifier %u
, which expects an unsigned int
.
To avoid undefined behavior in your program, add explicit type casts as follows:
unsigned char ch = (unsigned char)212;
printf("%u", (unsigned int)ch);
char
up to the implementation. See this question for more details.
!python 'script.py'
replace script.py with your real file name, DON'T forget ''
Avoiding redundancy I don't repeat my answer here again.
Please refer to my answer here. (note that answer only covers compiling to python bytecode.)
Well, it's clearly not a number since it has dashes in it. The error message and the two comments tell you that it is a factor but the commentators are apparently waiting and letting the message sink in. Dirk is suggesting that you do this:
EPL2011_12$Date2 <- as.Date( as.character(EPL2011_12$Date), "%d-%m-%y")
After that you can do this:
EPL2011_12FirstHalf <- subset(EPL2011_12, Date2 > as.Date("2012-01-13") )
R date functions assume the format is either "YYYY-MM-DD" or "YYYY/MM/DD". You do need to compare like classes: date to date, or character to character.
Alright with the help of the other two answers I've come up with a direct solution:
git checkout HEAD^ file/to/overwrite
git pull
var string = "Hello";
var str = string.substring(0, string.length-1);
alert(str);
Please make the following part of the Collectors API:
<K, V> Collector<? super Map.Entry<K, V>, ?, Map<K, V>> toMap() {
return Collectors.toMap(Map.Entry::getKey, Map.Entry::getValue);
}
You can use Convert.ChangeType()
- It allows you to use runtime information on any IConvertible
type to change representation formats. Not all conversions are possible, though, and you may need to write special case logic if you want to support conversions from types that are not IConvertible
.
The corresponding code (without exception handling or special case logic) would be:
Ship ship = new Ship();
string value = "5.5";
PropertyInfo propertyInfo = ship.GetType().GetProperty("Latitude");
propertyInfo.SetValue(ship, Convert.ChangeType(value, propertyInfo.PropertyType), null);
It's not possible to access camera of your development machine to be used as simulator camera. Camera functionality is not available in any iOS
version and any Simulator. You will have to use device for testing camera purpose.
I wanted a solution to copy files modified after a certain date and time which mean't I need to use Get-ChildItem piped through a filter. Below is what I came up with:
$SourceFolder = "C:\Users\RCoode\Documents\Visual Studio 2010\Projects\MyProject"
$ArchiveFolder = "J:\Temp\Robin\Deploy\MyProject"
$ChangesStarted = New-Object System.DateTime(2013,10,16,11,0,0)
$IncludeFiles = ("*.vb","*.cs","*.aspx","*.js","*.css")
Get-ChildItem $SourceFolder -Recurse -Include $IncludeFiles | Where-Object {$_.LastWriteTime -gt $ChangesStarted} | ForEach-Object {
$PathArray = $_.FullName.Replace($SourceFolder,"").ToString().Split('\')
$Folder = $ArchiveFolder
for ($i=1; $i -lt $PathArray.length-1; $i++) {
$Folder += "\" + $PathArray[$i]
if (!(Test-Path $Folder)) {
New-Item -ItemType directory -Path $Folder
}
}
$NewPath = Join-Path $ArchiveFolder $_.FullName.Replace($SourceFolder,"")
Copy-Item $_.FullName -Destination $NewPath
}
For adding margins to specified cells, you can use this custom flow layout. https://github.com/voyages-sncf-technologies/VSCollectionViewCellInsetFlowLayout/
extension ViewController : VSCollectionViewDelegateCellInsetFlowLayout
{
func collectionView(_ collectionView: UICollectionView, layout collectionViewLayout: UICollectionViewLayout, insetForItemAt indexPath: IndexPath) -> UIEdgeInsets {
if indexPath.item == 0 {
return UIEdgeInsets(top: 0, left: 0, bottom: 10, right: 0)
}
return UIEdgeInsets.zero
}
}
There's no shortcut for doing this in Java like the example you gave in Python.
You'd have to do this:
for (;i > 0; i--) {
somenum = somenum + "0";
}
There are many ways to move repositories around, git bundle
is a nice way if you have insufficient network availability. Since a Git repository is really just a directory full of files, you can "clone" a repository by making a copy of the .git
directory in whatever way suits you best.
The most efficient way is to use an external repository somewhere (use GitHub or set up Gitosis), and then git push
.
make sure you add {} around Html.RenderPartial, as:
@{Html.RenderPartial("FullName", new { firstName = model.FirstName, lastName = model.LastName});}
not
@Html.RenderPartial("FullName", new { firstName = model.FirstName, lastName = model.LastName});
Another reason not mentioned above is that many built-in functions and methods of built-in types modify an object but do not return the modified object. If those modified objects were returned, that would make functional code cleaner and more concise. For example, if some_list.append(some_object) returned some_list with some_object appended.
The accepted answer in the form of reusable PowerShell script
Param(
[string]$WildcardFilePath,
[string]$OutFilePath
)
try
{
$tempFile = [System.IO.Path]::GetTempFileName()
Get-ChildItem -path $wildcardFilePath | foreach { "file '$_'" } | Out-File -FilePath $tempFile -Encoding ascii
ffmpeg.exe -safe 0 -f concat -i $tempFile -c copy $outFilePath
}
finally
{
Remove-Item $tempFile
}
There is no difference between keystore and truststore files. Both are files in the proprietary JKS file format. The distinction is in the use: To the best of my knowledge, Java will only use the store that is referenced by the -Djavax.net.ssl.trustStore
system property to look for certificates to trust when creating SSL connections. Same for keys and -Djavax.net.ssl.keyStore
. But in theory it's fine to use one and the same file for trust- and keystores.
To avoid placing HTML tags in the title attribute, another solution is to use markdown. For instance, you could use [br] to represent a line break, then perform a simple replace in the content function.
In title attribute:
"Sample Line 1[br][br]Sample Line 2"
In your content function:
content: function () {
return $(this).attr('title').replace(/\[br\]/g,"<br />");
}
You can use the jQuery Color plugin.
For example, to draw attention to all the divs on your page, you could use the following code:
$("div").stop().css("background-color", "#FFFF9C")
.animate({ backgroundColor: "#FFFFFF"}, 1500);
Edit - New and improved
The following uses the same technique as above, but it has the added benefits of:
Extend the jQuery Object:
var notLocked = true;
$.fn.animateHighlight = function(highlightColor, duration) {
var highlightBg = highlightColor || "#FFFF9C";
var animateMs = duration || 1500;
var originalBg = this.css("backgroundColor");
if (notLocked) {
notLocked = false;
this.stop().css("background-color", highlightBg)
.animate({backgroundColor: originalBg}, animateMs);
setTimeout( function() { notLocked = true; }, animateMs);
}
};
Usage example:
$("div").animateHighlight("#dd0000", 1000);
Similar to hooblei's answer, just with interpolation:
<li ng-style="{'background-image': 'url({{ image.source }})'}">...</li>
In TypeScript you can use import to load local JSON files. For example loading a font.json:
import * as fontJson from '../../public/fonts/font_name.json';
This requires a tsconfig flag --resolveJsonModule:
// tsconfig.json
{
"compilerOptions": {
"module": "commonjs",
"resolveJsonModule": true,
"esModuleInterop": true
}
}
For more information see the release notes of typescript: https://www.typescriptlang.org/docs/handbook/release-notes/typescript-2-9.html
How about writing your own concat method?
public static Stream<T> concat(Stream<? extends T> a,
Stream<? extends T> b,
Stream<? extends T> args)
{
Stream<T> concatenated = Stream.concat(a, b);
for (Stream<T> stream : args)
{
concatenated = Stream.concat(concatenated, stream);
}
return concatenated;
}
This at least makes your first example a lot more readable.
You want set_ticks_position
rather than set_label_position
:
ax.xaxis.set_ticks_position('top') # the rest is the same
This gives me:
While the answer from @alessioalex works, there's another way as stated in the Express behind proxies section of Express - guide.
app.set('trust proxy', true)
to your express initialization code.req.ip
or req.ips
in the usual way (as if there isn't a reverse proxy)Optional reading:
req.ip
or req.ips
. req.connection.remoteAddress
does't work with this solution.'trust proxy'
are available if you need something more sophisticated than trusting everything passed through in x-forwarded-for
header (for example, when your proxy doesn't remove preexisting x-forwarded-for header from untrusted sources). See the linked guide for more details.x-forwarded-for
header, there are two possibilities.
proxy_set_header X-Forwarded-For $remote_addr;
to your configuration.exit(0); // at the end of main function before closing curly braces
If you are happy just catching Control-C, it's a done deal. If you really want non-blocking I/O but you don't want the curses library, another alternative is to move lock, stock, and barrel to the AT&T sfio
library. It's nice library patterned on C stdio
but more flexible, thread-safe, and performs better. (sfio stands for safe, fast I/O.)
An explicit cursor is one you declare, like:
CURSOR my_cursor IS
SELECT table_name FROM USER_TABLES
An implicit cursor is one created to support any in-line SQL you write (either static or dynamic).
This should solve your problem, you should try to run the following below:
Set-ExecutionPolicy -ExecutionPolicy RemoteSigned -Scope CurrentUser
I am using this:
<div key={+new Date() + Math.random()}>
Use this <i class="fa fa-camera-retro" ></i>
you have not defined fa classes
You can try the following code:
background-image:url('url of your image') 10px 10px no-repeat
Since we are doing this one to death - you don't have to specify a year:
select * from demo
where somedate between to_date('01/01 00:00:00', 'DD/MM HH24:MI:SS')
and to_date('31/12 23:59:59', 'DD/MM HH24:MI:SS');
However the accepted answer by FerranB makes more sense if you want to specify all date values that fall within the current year.
You can try using AppDomain.UnhandledException and see if that lets you catch it.
**EDIT*
Here is some more information that might be useful (it's a long read).
UPDATE TableName
SET YourField = ''
WHERE YourField REGEXP 'YOUR REGEX'
And :
SELECT * from TableName
WHERE YourField REGEXP 'YOUR REGEX'
Well here is a simple function which will return the left justified string version of an integer:
character(len=20) function str(k)
! "Convert an integer to string."
integer, intent(in) :: k
write (str, *) k
str = adjustl(str)
end function str
And here is a test code:
program x
integer :: i
do i=1, 100
open(11, file='Output'//trim(str(i))//'.txt')
write (11, *) i
close (11)
end do
end program x
rt.jar
contains all of the compiled class files for the base Java Runtime environment. You should not be messing with this jar file.
For MacOS it is called classes.jar
and located under /System/Library/Frameworks/<java_version>/Classes
. Same not messing with it rule applies there as well :).
http://javahowto.blogspot.com/2006/05/what-does-rtjar-stand-for-in.html
This is for the icon in the browser (most of the sites omit the type):
<link rel="icon" type="image/vnd.microsoft.icon"
href="http://example.com/favicon.ico" />
or
<link rel="icon" type="image/png"
href="http://example.com/image.png" />
or
<link rel="apple-touch-icon"
href="http://example.com//apple-touch-icon.png">
for the shortcut icon:
<link rel="shortcut icon"
href="http://example.com/favicon.ico" />
Place them in the <head></head>
section.
Edit may 2019 some additional examples from MDN
I fixed it by added the jquery.slim.min.js after the jquery.min.js, as the Solution Sequence.
Problem Sequence
<script src="./vendor/jquery/jquery.min.js"></script>
<script src="./vendor/bootstrap/js/bootstrap.bundle.min.js"></script>
Solution Sequence
<script src="./vendor/jquery/jquery.min.js"></script>
<script src="./vendor/jquery/jquery.slim.min.js"></script>
<script src="./vendor/jquery-easing/jquery.easing.min.js"></script>
The particular exception message is telling you that the mentioned class is missing in the classpath. As the org.apache.commons.io
package name hints, the mentioned class is part of the http://commons.apache.org/io
project.
And indeed, Commons FileUpload has Commons IO as a dependency. You need to download and drop commons-io.jar
in the /WEB-INF/lib
as well.
Thank you everybody support :))
UIDevice+Extensions.swift
import Foundation
import UIKit
extension UIDevice {
static let modelName: String = {
var systemInfo = utsname()
uname(&systemInfo)
let machineMirror = Mirror(reflecting: systemInfo.machine)
let identifier = machineMirror.children.reduce("") { identifier, element in
guard let value = element.value as? Int8, value != 0 else { return identifier }
return identifier + String(UnicodeScalar(UInt8(value)))
}
func mapToDevice(identifier: String) -> String { // swiftlint:disable:this cyclomatic_complexity
#if os(iOS)
switch identifier {
case "iPod5,1": return "iPod Touch 5"
case "iPod7,1": return "iPod Touch 6"
case "iPhone3,1", "iPhone3,2", "iPhone3,3": return "iPhone 4"
case "iPhone4,1": return "iPhone 4s"
case "iPhone5,1", "iPhone5,2": return "iPhone 5"
case "iPhone5,3", "iPhone5,4": return "iPhone 5c"
case "iPhone6,1", "iPhone6,2": return "iPhone 5s"
case "iPhone7,2": return "iPhone 6"
case "iPhone7,1": return "iPhone 6 Plus"
case "iPhone8,1": return "iPhone 6s"
case "iPhone8,2": return "iPhone 6s Plus"
case "iPhone9,1", "iPhone9,3": return "iPhone 7"
case "iPhone9,2", "iPhone9,4": return "iPhone 7 Plus"
case "iPhone8,4": return "iPhone SE"
case "iPhone10,1", "iPhone10,4": return "iPhone 8"
case "iPhone10,2", "iPhone10,5": return "iPhone 8 Plus"
case "iPhone10,3", "iPhone10,6": return "iPhone X"
case "iPhone11,2": return "iPhone XS"
case "iPhone11,4", "iPhone11,6": return "iPhone XS Max"
case "iPhone11,8": return "iPhone XR"
case "iPad2,1", "iPad2,2", "iPad2,3", "iPad2,4":return "iPad 2"
case "iPad3,1", "iPad3,2", "iPad3,3": return "iPad 3"
case "iPad3,4", "iPad3,5", "iPad3,6": return "iPad 4"
case "iPad4,1", "iPad4,2", "iPad4,3": return "iPad Air"
case "iPad5,3", "iPad5,4": return "iPad Air 2"
case "iPad6,11", "iPad6,12": return "iPad 5"
case "iPad7,5", "iPad7,6": return "iPad 6"
case "iPad2,5", "iPad2,6", "iPad2,7": return "iPad Mini"
case "iPad4,4", "iPad4,5", "iPad4,6": return "iPad Mini 2"
case "iPad4,7", "iPad4,8", "iPad4,9": return "iPad Mini 3"
case "iPad5,1", "iPad5,2": return "iPad Mini 4"
case "iPad6,3", "iPad6,4": return "iPad Pro 9.7 Inch"
case "iPad6,7", "iPad6,8": return "iPad Pro 12.9 Inch"
case "iPad7,1", "iPad7,2": return "iPad Pro 12.9 Inch 2. Generation"
case "iPad7,3", "iPad7,4": return "iPad Pro 10.5 Inch"
case "AppleTV5,3": return "Apple TV"
case "AppleTV6,2": return "Apple TV 4K"
case "AudioAccessory1,1": return "HomePod"
case "i386", "x86_64": return "Simulator \(mapToDevice(identifier: ProcessInfo().environment["SIMULATOR_MODEL_IDENTIFIER"] ?? "iOS"))"
default: return identifier
}
#elseif os(tvOS)
switch identifier {
case "AppleTV5,3": return "Apple TV 4"
case "AppleTV6,2": return "Apple TV 4K"
case "i386", "x86_64": return "Simulator \(mapToDevice(identifier: ProcessInfo().environment["SIMULATOR_MODEL_IDENTIFIER"] ?? "tvOS"))"
default: return identifier
}
#endif
}
return mapToDevice(identifier: identifier)
}()
}
enum DeviceName: String {
case iPod_Touch_5 = "iPod Touch 5"
case pod_Touch_6 = "Pod Touch 6"
case iPhone_4 = "iPhone 4"
case iPhone_4s = "iPhone 4s"
case iPhone_5 = "iPhone 5"
case iPhone_5c = "iPhone 5c"
case iPhone_5s = "iPhone 5s"
case iPhone_6 = "iPhone 6"
case iPhone_6_Plus = "iPhone 6 Plus"
case iPhone_6s = "iPhone 6s"
case iPhone_6s_Plus = "iPhone 6s Plus"
case iPhone_7 = "iPhone 7"
case iPhone_7_Plus = "iPhone 7 Plus"
case iPhone_SE = "iPhone SE"
case iPhone_8 = "iPhone 8"
case iPhone_8_Plus = "iPhone 8 Plus"
case iPhone_X = "iPhone X"
case iPhone_XS = "iPhone XS"
case iPhone_XS_Max = "iPhone XS Max"
case iPhone_XR = "iPhone XR"
case iPad_2 = "iPad 2"
case iPad_3 = "iPad 3"
case iPad_4 = "iPad 4"
case iPad_Air = "iPad Air"
case iPad_Air_2 = "iPad Air 2"
case iPad_5 = "iPad 5"
case iPad_6 = "iPad 6"
case iPad_Mini = "iPad Mini"
case iPad_Mini_2 = "iPad Mini 2"
case iPad_Mini_3 = "iPad Mini 3"
case iPad_Mini_4 = "iPad Mini 4"
case iPad_Pro_9_7_Inch = "iPad Pro 9.7 Inch"
case iPad_Pro_12_9_Inch = "iPad Pro 12.9 Inch"
case iPad_Pro_12_9_Inch_2_Generation = "iPad Pro 12.9 Inch 2. Generation"
case iPad_Pro_10_5_Inch = "iPad Pro 10.5 Inch"
case apple_TV = "Apple TV"
case apple_TV_4K = "Apple TV 4K"
case homePod = "HomePod"
}
SharedFunctions.swift
import Foundation
import UIKit
func isDevice(_ name: DeviceName) -> Bool {
let modelName = UIDevice.modelName.replacingOccurrences(of: "Simulator", with: "").trimmed()
if name.rawValue == modelName {
return true
}
return false
}
String+Whitespace.swift
import Foundation
extension String {
public func trimmed() -> String {
return self.trimmingCharacters(in: .whitespacesAndNewlines)
}
}
%>%
is similar to pipe in Unix. For example, in
a <- combined_data_set %>% group_by(Outlet_Identifier) %>% tally()
the output of combined_data_set
will go into group_by
and its output will go into tally
, then the final output is assigned to a
.
This gives you handy and easy way to use functions in series without creating variables and storing intermediate values.
This data is JSON! You can deserialize it using the built-in json
module if you're on Python 2.6+, otherwise you can use the excellent third-party simplejson
module.
import json # or `import simplejson as json` if on Python < 2.6
json_string = u'{ "id":"123456789", ... }'
obj = json.loads(json_string) # obj now contains a dict of the data
The first problem is that your query string is wrong:
I think this: "INSERT INTO employee(hans,germany) values(?,?)"
should be like this: "INSERT INTO employee(name,country) values(?,?)"
The other problem is that you have a parameterized PreparedStatement and you don't set the parameters before running it.
You should add these to your code:
String inserting = "INSERT INTO employee(name,country) values(?,?)";
System.out.println("insert " + inserting);//
PreparedStatement ps = con.prepareStatement(inserting);
ps.setString(1,"hans"); // <----- this
ps.setString(2,"germany");// <---- and this
ps.executeUpdate();
You do not have to move the mouse to get the cursor's location. The location is also reported on events other than mousemove. Here's a click-event as an example:
document.body.addEventListener('click',function(e)
{
console.log("cursor-location: " + e.clientX + ',' + e.clientY);
});
But this is obviously performing a 'string' comparison
No. The string will be automatically cast into a DATETIME value.
See 11.2. Type Conversion in Expression Evaluation.
When an operator is used with operands of different types, type conversion occurs to make the operands compatible. Some conversions occur implicitly. For example, MySQL automatically converts numbers to strings as necessary, and vice versa.
Just a warning to the correct answers above:
Using the -f / --force Method provides a risk to lose the file if you mix up source and target:
mbucher@server2:~/test$ ls -la
total 11448
drwxr-xr-x 2 mbucher www-data 4096 May 25 15:27 .
drwxr-xr-x 18 mbucher www-data 4096 May 25 15:13 ..
-rw-r--r-- 1 mbucher www-data 4109466 May 25 15:26 data.tar.gz
-rw-r--r-- 1 mbucher www-data 7582480 May 25 15:27 otherdata.tar.gz
lrwxrwxrwx 1 mbucher www-data 11 May 25 15:26 thesymlink -> data.tar.gz
mbucher@server2:~/test$
mbucher@server2:~/test$ ln -s -f thesymlink otherdata.tar.gz
mbucher@server2:~/test$
mbucher@server2:~/test$ ls -la
total 4028
drwxr-xr-x 2 mbucher www-data 4096 May 25 15:28 .
drwxr-xr-x 18 mbucher www-data 4096 May 25 15:13 ..
-rw-r--r-- 1 mbucher www-data 4109466 May 25 15:26 data.tar.gz
lrwxrwxrwx 1 mbucher www-data 10 May 25 15:28 otherdata.tar.gz -> thesymlink
lrwxrwxrwx 1 mbucher www-data 11 May 25 15:26 thesymlink -> data.tar.gz
Of course this is intended, but usually mistakes occur. So, deleting and rebuilding the symlink is a bit more work but also a bit saver:
mbucher@server2:~/test$ rm thesymlink && ln -s thesymlink otherdata.tar.gz
ln: creating symbolic link `otherdata.tar.gz': File exists
which at least keeps my file.
Try It....
UpdateModel(book);
var book = new Model.Book
{
BookNumber = _book.BookNumber,
BookName = _book.BookName,
BookTitle = _book.BookTitle,
};
using (var db = new MyContextDB())
{
var result = db.Books.SingleOrDefault(b => b.BookNumber == bookNumber);
if (result != null)
{
try
{
UpdateModel(book);
db.Books.Attach(book);
db.Entry(book).State = EntityState.Modified;
db.SaveChanges();
}
catch (Exception ex)
{
throw;
}
}
}
Nope, this is how you do it:
UPDATE table SET ID = 111111259 WHERE ID = 2555
UPDATE table SET ID = 111111261 WHERE ID = 2724
UPDATE table SET ID = 111111263 WHERE ID = 2021
UPDATE table SET ID = 111111264 WHERE ID = 2017
In most project types, your async
"up" and "down" will end at an async void
event handler or returning a Task
to your framework.
However, Console apps do not support this.
You can either just do a Wait
on the returned task:
static void Main()
{
MainAsync().Wait();
// or, if you want to avoid exceptions being wrapped into AggregateException:
// MainAsync().GetAwaiter().GetResult();
}
static async Task MainAsync()
{
...
}
or you can use your own context like the one I wrote:
static void Main()
{
AsyncContext.Run(() => MainAsync());
}
static async Task MainAsync()
{
...
}
More information for async
Console apps is on my blog.
Here's a link to an ActiveState solution - and the code in case it disappears again.
==================================================
xmlreader.py:
==================================================
from xml.dom.minidom import parse
class NotTextNodeError:
pass
def getTextFromNode(node):
"""
scans through all children of node and gathers the
text. if node has non-text child-nodes, then
NotTextNodeError is raised.
"""
t = ""
for n in node.childNodes:
if n.nodeType == n.TEXT_NODE:
t += n.nodeValue
else:
raise NotTextNodeError
return t
def nodeToDic(node):
"""
nodeToDic() scans through the children of node and makes a
dictionary from the content.
three cases are differentiated:
- if the node contains no other nodes, it is a text-node
and {nodeName:text} is merged into the dictionary.
- if the node has the attribute "method" set to "true",
then it's children will be appended to a list and this
list is merged to the dictionary in the form: {nodeName:list}.
- else, nodeToDic() will call itself recursively on
the nodes children (merging {nodeName:nodeToDic()} to
the dictionary).
"""
dic = {}
for n in node.childNodes:
if n.nodeType != n.ELEMENT_NODE:
continue
if n.getAttribute("multiple") == "true":
# node with multiple children:
# put them in a list
l = []
for c in n.childNodes:
if c.nodeType != n.ELEMENT_NODE:
continue
l.append(nodeToDic(c))
dic.update({n.nodeName:l})
continue
try:
text = getTextFromNode(n)
except NotTextNodeError:
# 'normal' node
dic.update({n.nodeName:nodeToDic(n)})
continue
# text node
dic.update({n.nodeName:text})
continue
return dic
def readConfig(filename):
dom = parse(filename)
return nodeToDic(dom)
def test():
dic = readConfig("sample.xml")
print dic["Config"]["Name"]
print
for item in dic["Config"]["Items"]:
print "Item's Name:", item["Name"]
print "Item's Value:", item["Value"]
test()
==================================================
sample.xml:
==================================================
<?xml version="1.0" encoding="UTF-8"?>
<Config>
<Name>My Config File</Name>
<Items multiple="true">
<Item>
<Name>First Item</Name>
<Value>Value 1</Value>
</Item>
<Item>
<Name>Second Item</Name>
<Value>Value 2</Value>
</Item>
</Items>
</Config>
==================================================
output:
==================================================
My Config File
Item's Name: First Item
Item's Value: Value 1
Item's Name: Second Item
Item's Value: Value 2
I needed to snapshot a div on the page (for a webapp I wrote) that is protected by JWT's and makes very heavy use of Angular.
I had no luck with any of the above methods.
I ended up taking the outerHTML of the div I needed, cleaning it up a little (*) and then sending it to the server where I run wkhtmltopdf against it.
This is working very well for me.
(*) various input devices in my pages didn't render as checked or have their text values when viewed in the pdf... So I run a little bit of jQuery on the html before I send it up for rendering. ex: for text input items -- I copy their .val()'s into 'value' attributes, which then can be seen by wkhtmlpdf
This should take care of space, tab and newline:
data = data.replaceAll("[ \t\n\r]*", " ");
This is a really old question, but I came across this on a search and I think I know the source of your problem.
JSON does not allow "real" newlines in its data; it can only have escaped newlines. See the answer from @YOU. According to the question, it looks like you attempted to escape line breaks in Python two ways: by using the line continuation character ("\"
) or by using "\n"
as an escape.
But keep in mind: if you are using a string in python, special escaped characters ("\t"
, "\n"
) are translated into REAL control characters! The "\n"
will be replaced with the ASCII control character representing a newline character, which is precisely the character that is illegal in JSON. (As for the line continuation character, it simply takes the newline out.)
So what you need to do is to prevent Python from escaping characters. You can do this by using a raw string (put r
in front of the string, as in r"abc\ndef"
, or by including an extra slash in front of the newline ("abc\\ndef"
).
Both of the above will, instead of replacing "\n"
with the real newline ASCII control character, will leave "\n"
as two literal characters, which then JSON can interpret as a newline escape.
If you're curious which protocols .NET supports, you can try HttpClient out on https://www.howsmyssl.com/
// set proxy if you need to
// WebRequest.DefaultWebProxy = new WebProxy("http://localhost:3128");
File.WriteAllText("howsmyssl-httpclient.html", new HttpClient().GetStringAsync("https://www.howsmyssl.com").Result);
// alternative using WebClient for older framework versions
// new WebClient().DownloadFile("https://www.howsmyssl.com/", "howsmyssl-webclient.html");
The result is damning:
Your client is using TLS 1.0, which is very old, possibly susceptible to the BEAST attack, and doesn't have the best cipher suites available on it. Additions like AES-GCM, and SHA256 to replace MD5-SHA-1 are unavailable to a TLS 1.0 client as well as many more modern cipher suites.
As Eddie explains above, you can enable better protocols manually:
System.Net.ServicePointManager.SecurityProtocol = SecurityProtocolType.Tls12 | SecurityProtocolType.Tls11;
I don't know why it uses bad protocols out-the-box. That seems a poor setup choice, tantamount to a major security bug (I bet plenty of applications don't change the default). How can we report it?
worked for me Thanks
Versions for reference
jquery-3.3.1.js
/1.10.19/js/jquery.dataTables.min.js
/buttons/1.5.2/js/dataTables.buttons.min.js
An abbreviated version of your code worked for me,
class Remote: NSObject {
var data = NSMutableData()
func connect(query:NSString) {
var url = NSURL.URLWithString("http://www.google.com")
var request = NSURLRequest(URL: url)
var conn = NSURLConnection(request: request, delegate: self, startImmediately: true)
}
func connection(didReceiveResponse: NSURLConnection!, didReceiveResponse response: NSURLResponse!) {
println("didReceiveResponse")
}
func connection(connection: NSURLConnection!, didReceiveData conData: NSData!) {
self.data.appendData(conData)
}
func connectionDidFinishLoading(connection: NSURLConnection!) {
println(self.data)
}
deinit {
println("deiniting")
}
}
This is the code I used in the calling class,
class ViewController: UIViewController {
var remote = Remote()
@IBAction func downloadTest(sender : UIButton) {
remote.connect("/apis")
}
}
You didn't specify in your question where you had this code,
var remote = Remote()
remote.connect("/apis")
If var is a local variable, then the Remote class will be deallocated right after the connect(query:NSString) method finishes, but before the data returns. As you can see by my code, I usually implement reinit (or dealloc up to now) just to make sure when my instances go away. You should add that to your Remote class to see if that's your problem.
The basic difference is that undefined
and null
represent different concepts.
If only null
was available, you would not be able to determine whether null
was set intentionally as the value or whether the value has not been set yet unless you used cumbersome error catching: eg
var a;
a == null; // This is true
a == undefined; // This is true;
a === undefined; // This is true;
However, if you intentionally set the value to null
, strict equality with undefined
fails, thereby allowing you to differentiate between null
and undefined
values:
var b = null;
b == null; // This is true
b == undefined; // This is true;
b === undefined; // This is false;
Check out the reference here instead of relying on people dismissively saying junk like "In summary, undefined is a JavaScript-specific mess, which confuses everyone". Just because you are confused, it does not mean that it is a mess.
https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/undefined
This behaviour is also not specific to JavaScript and it completes the generalised concept that a boolean result can be true
, false
, unknown (null
), no value (undefined
), or something went wrong (error
).
I know it's too late. But I found a solution even if you are using overflow or display:flex in parent elements sticky will work.
steps:
Create a parent element for the element you want to set sticky (Get sure that the created element is relative to body or to full-width & full-height parent).
Add the following styles to the parent element:
{ position: absolute; height: 100vmax; }
For the sticky element, get sure to add z-index that is higher than all elements in the page.
That's it! Now it must work. Regards
if you have async dom changes, this function checks (with time limit in seconds) for the DOM elements, it will not be heavy for the DOM and its Promise based :)
function getElement(selector, i = 5) {
return new Promise(async (resolve, reject) => {
if(i <= 0) return reject(`${selector} not found`);
const elements = document.querySelectorAll(selector);
if(elements.length) return resolve(elements);
return setTimeout(async () => await getElement(selector, i-1), 1000);
})
}
// Now call it with your selector
try {
element = await getElement('.woohoo');
} catch(e) { // catch the e }
//OR
getElement('.woohoo', 5)
.then(element => { // do somthing with the elements })
.catch(e => { // catch the error });
Possibly this can be of great help for you.
div.image
{
width:500px;
height:250px;
border:2px solid;
border-color:#CD853F;
}
div.box
{
width:400px;
height:180px;
margin:30px 50px;
background-color:#ffffff;
border:1px solid;
border-color:#CD853F;
opacity:0.6;
filter:alpha(opacity=60);
}
div.box p
{
margin:30px 40px;
font-weight:bold;
color:#CD853F;
}
Check this link once.
For a non-specific package and a more general solution you can check out pip-review, a tool that checks what packages could/should be updated.
$ pip-review --interactive
requests==0.14.0 is available (you have 0.13.2)
Upgrade now? [Y]es, [N]o, [A]ll, [Q]uit y
In order to make the canvas full screen width and height always, meaning even when the browser is resized, you need to run your draw loop within a function that resizes the canvas to the window.innerHeight and window.innerWidth.
Example: http://jsfiddle.net/jaredwilli/qFuDr/
<canvas id="canvas"></canvas>
(function() {
var canvas = document.getElementById('canvas'),
context = canvas.getContext('2d');
// resize the canvas to fill browser window dynamically
window.addEventListener('resize', resizeCanvas, false);
function resizeCanvas() {
canvas.width = window.innerWidth;
canvas.height = window.innerHeight;
/**
* Your drawings need to be inside this function otherwise they will be reset when
* you resize the browser window and the canvas goes will be cleared.
*/
drawStuff();
}
resizeCanvas();
function drawStuff() {
// do your drawing stuff here
}
})();
* { margin:0; padding:0; } /* to remove the top and left whitespace */
html, body { width:100%; height:100%; } /* just to be sure these are full screen*/
canvas { display:block; } /* To remove the scrollbars */
That is how you properly make the canvas full width and height of the browser. You just have to put all the code for drawing to the canvas in the drawStuff() function.
Check this has everything you need
http://www.html5rocks.com/en/mobile/fullscreen/
The Chrome team has recently implemented a feature that tells the browser to launch the page fullscreen when the user has added it to the home screen. It is similar to the iOS Safari model.
<meta name="mobile-web-app-capable" content="yes">
I dealt with this before & had posted in the spring forums.
The advice we received was to use a type of SQlQuery. Here's an example of what we did when trying to get a value out of a DB that might not be there.
@Component
public class FindID extends MappingSqlQuery<Long> {
@Autowired
public void setDataSource(DataSource dataSource) {
String sql = "Select id from address where id = ?";
super.setDataSource(dataSource);
super.declareParameter(new SqlParameter(Types.VARCHAR));
super.setSql(sql);
compile();
}
@Override
protected Long mapRow(ResultSet rs, int rowNum) throws SQLException {
return rs.getLong(1);
}
In the DAO then we just call...
Long id = findID.findObject(id);
Not clear on performance, but it works and is neat.
let data = new FormData();
data.append('file', values.file);
user_input = gets.chomp
user_input.downcase!
if user_input.include?('substring')
# Do something
end
This will help you check if the string contains substring or not
puts "Enter a string"
user_input = gets.chomp # Ex: Tommy
user_input.downcase! # tommy
if user_input.include?('s')
puts "Found"
else
puts "Not found"
end
That error usually occurs when you try to subtract an interval from DateTime.MinValue
or you want to add something to DateTime.MaxValue
(or you try to instantiate a date outside this min-max interval). Are you sure you're not assigning MinValue
somewhere?
Try DLRadioButton, works for both Swift
and ObjC
. You can also use images to indicate selection status or customize your own style.
Check it out at GitHub.
**Update: added the option for putting selection indicator on the right side.
**Update: added square button, IBDesignable
, improved performance.
**Update: added multiple selection support.
Parsing string with moment.js.
const date = '1231231231231' //Example String date
const parsed = moment(+date);
You can use find_all
in the following way to find every a
element that has an href
attribute, and print each one:
from BeautifulSoup import BeautifulSoup
html = '''<a href="some_url">next</a>
<span class="class"><a href="another_url">later</a></span>'''
soup = BeautifulSoup(html)
for a in soup.find_all('a', href=True):
print "Found the URL:", a['href']
The output would be:
Found the URL: some_url
Found the URL: another_url
Note that if you're using an older version of BeautifulSoup (before version 4) the name of this method is findAll
. In version 4, BeautifulSoup's method names were changed to be PEP 8 compliant, so you should use find_all
instead.
If you want all tags with an href
, you can omit the name
parameter:
href_tags = soup.find_all(href=True)
You are dividing by rr
which may be 0.0. Check if rr
is zero and do something reasonable other than using it in the denominator.
If I understand correctly you want to change the CSS style of an element by clicking an item in a ul
list. Am I right?
HTML:
<div class="results" style="background-color:Red;">
</div>
<ul class="colors-list">
<li>Red</li>
<li>Blue</li>
<li>#ffee99</li>
</ul>
jquery
$('.colors-list li').click(function(e){
var color = $(this).text();
$('.results').css('background-color',color);
});
Note that jquery can use addClass
, removeClass
and toggleClass
if you want to use classes rather than inline styling. This means that you can do something like that:
$('.results').addClass('selected');
And define the 'selected' styling in the CSS.
Working example: http://jsfiddle.net/uuJmP/
image=myCamera.getImage().crop(xx,xx,xx,xx).scale(xx,xx).greyscale()
You can use greyscale()
directly for the transformation.