As DanielaWaranie mentioned in her answer - there is a way to specify the type of $item when you iterating over $items in $collectionObject: Add @return MyEntitiesClassName
to current()
and rest of the Iterator
and ArrayAccess
-methods which return values.
Boom! No need in /** @var SomeObj[] $collectionObj */
over foreach
, and works right with collection object, no need to return collection with specific method described as @return SomeObj[]
.
I suspect not all IDE support it but it works perfectly fine in PhpStorm, which makes me happier.
Example:
class MyCollection implements Countable, Iterator, ArrayAccess {
/**
* @return User
*/
public function current() {
return $this->items[$this->cursor];
}
//... implement rest of the required `interface` methods and your custom
}
In my case current()
and rest of interface
-methods are implemented in Abstract
-collection class and I do not know what kind of entities will eventually be stored in collection.
So here is the trick: Do not specify return type in abstract class, instead use PhpDoc instuction @method
in description of specific collection class.
Example:
class User {
function printLogin() {
echo $this->login;
}
}
abstract class MyCollection implements Countable, Iterator, ArrayAccess {
protected $items = [];
public function current() {
return $this->items[$this->cursor];
}
//... implement rest of the required `interface` methods and your custom
//... abstract methods which will be shared among child-classes
}
/**
* @method User current()
* ...rest of methods (for ArrayAccess) if needed
*/
class UserCollection extends MyCollection {
function add(User $user) {
$this->items[] = $user;
}
// User collection specific methods...
}
Now, usage of classes:
$collection = new UserCollection();
$collection->add(new User(1));
$collection->add(new User(2));
$collection->add(new User(3));
foreach ($collection as $user) {
// IDE should `recognize` method `printLogin()` here!
$user->printLogin();
}
Once again: I suspect not all IDE support it, but PhpStorm does. Try yours, post in comment the results!
This defines what shell (command interpreter) you are using for interpreting/running your script. Each shell is slightly different in the way it interacts with the user and executes scripts (programs).
When you type in a command at the Unix prompt, you are interacting with the shell.
E.g., #!/bin/csh
refers to the C-shell, /bin/tcsh
the t-shell, /bin/bash
the bash shell, etc.
You can tell which interactive shell you are using the
echo $SHELL
command, or alternatively
env | grep -i shell
You can change your command shell with the chsh
command.
Each has a slightly different command set and way of assigning variables and its own set of programming constructs. For instance the if-else statement with bash looks different that the one in the C-shell.
This page might be of interest as it "translates" between bash and tcsh commands/syntax.
Using the directive in the shell script allows you to run programs using a different shell. For instance I use the tcsh
shell interactively, but often run bash scripts using /bin/bash in the script file.
Aside:
This concept extends to other scripts too. For instance if you program in Python you'd put
#!/usr/bin/python
at the top of your Python program
You can say word.strip(" ")
to remove any leading/trailing spaces from the string - you should do that before your if
statement. That way if someone enters input such as " test "
your program will still work.
That said, if " " in word:
will determine if a string contains any spaces. If that does not working, can you please provide more information?
I agree with Paul Tomblin. I usually use the keyset's iterator, and then base my condition off the value for that key:
Iterator<Integer> it = map.keySet().iterator();
while(it.hasNext()) {
Integer key = it.next();
Object val = map.get(key);
if (val.shouldBeRemoved()) {
it.remove();
}
}
Use Timer for every second...
new Timer().scheduleAtFixedRate(new TimerTask() {
@Override
public void run() {
//your method
}
}, 0, 1000);//put here time 1000 milliseconds=1 second
You could do this:
#if __WORDSIZE == 64
char *size = "64bits";
#else
char *size = "32bits";
#endif
In Python 2.x, you could use the format specifiers <B
for unsigned bytes, and <b
for signed bytes with struct.unpack
/struct.pack
.
E.g:
Let x
= '\xff\x10\x11'
data_ints = struct.unpack('<' + 'B'*len(x), x) # [255, 16, 17]
And:
data_bytes = struct.pack('<' + 'B'*len(data_ints), *data_ints) # '\xff\x10\x11'
That *
is required!
See https://docs.python.org/2/library/struct.html#format-characters for a list of the format specifiers.
You can use re.escape():
re.escape(string) Return string with all non-alphanumerics backslashed; this is useful if you want to match an arbitrary literal string that may have regular expression metacharacters in it.
>>> import re
>>> re.escape('^a.*$')
'\\^a\\.\\*\\$'
If you are using a Python version < 3.7, this will escape non-alphanumerics that are not part of regular expression syntax as well.
If you are using a Python version < 3.7 but >= 3.3, this will escape non-alphanumerics that are not part of regular expression syntax, except for specifically underscore (_
).
You can't: DataFrame
columns are Series
, by definition. That said, if you make the dtype
(the type of all the elements) datetime-like, then you can access the quantities you want via the .dt
accessor (docs):
>>> df["TimeReviewed"] = pd.to_datetime(df["TimeReviewed"])
>>> df["TimeReviewed"]
205 76032930 2015-01-24 00:05:27.513000
232 76032930 2015-01-24 00:06:46.703000
233 76032930 2015-01-24 00:06:56.707000
413 76032930 2015-01-24 00:14:24.957000
565 76032930 2015-01-24 00:23:07.220000
Name: TimeReviewed, dtype: datetime64[ns]
>>> df["TimeReviewed"].dt
<pandas.tseries.common.DatetimeProperties object at 0xb10da60c>
>>> df["TimeReviewed"].dt.year
205 76032930 2015
232 76032930 2015
233 76032930 2015
413 76032930 2015
565 76032930 2015
dtype: int64
>>> df["TimeReviewed"].dt.month
205 76032930 1
232 76032930 1
233 76032930 1
413 76032930 1
565 76032930 1
dtype: int64
>>> df["TimeReviewed"].dt.minute
205 76032930 5
232 76032930 6
233 76032930 6
413 76032930 14
565 76032930 23
dtype: int64
If you're stuck using an older version of pandas
, you can always access the various elements manually (again, after converting it to a datetime-dtyped Series). It'll be slower, but sometimes that isn't an issue:
>>> df["TimeReviewed"].apply(lambda x: x.year)
205 76032930 2015
232 76032930 2015
233 76032930 2015
413 76032930 2015
565 76032930 2015
Name: TimeReviewed, dtype: int64
file_exists checks whether a file exist in the specified path or not.
Syntax:
file_exists ( string $filename )
Returns TRUE
if the file or directory specified by filename exists; FALSE
otherwise.
$filename = BASE_DIR."images/a/test.jpg";
if (file_exists($filename)){
echo "File exist.";
}else{
echo "File does not exist.";
}
Another alternative method you can use getimagesize(), it will return 0(zero) if file/directory is not available in the specified path.
if (@getimagesize($filename)) {...}
if (!document.getElementById("given-id")) {
//It does not exist
}
The statement document.getElementById("given-id")
returns null
if an element with given-id
doesn't exist, and null
is falsy meaning that it translates to false when evaluated in an if-statement. (other falsy values)
The name of the inputs must be the same to belong to the same group. Then the others will be automatically deselected when one is clicked.
In my opinion one of the worst chosen word's to describe the process, as it is not related to anything in real-life or similar. In general the word "queue" is very bad as if pronounced, it sounds like the English character "q". See the inefficiency here?
enqueue: to place something into a queue; to add an element to the tail of a queue;
dequeue to take something out of a queue; to remove the first available element from the head of a queue
I tried the win32com way and xlwings way but I didn't get any luck. I use PyCharm and didn't see the .WorkBook option in the autocompletion for win32com. I got the -2147352567 error when I tried to pass a workbook as variable.
Then, I found a work around using vba shell to run my Python script. Write something on the XLS file you are working with when everything is done. So that Excel knows that it's time to run the VBA macro.
But the vba Application.wait function will take up 100% cpu which is wierd. Some people said that using the windows Sleep function would fix it.
Import xlsxwriter
Shell "C:\xxxxx\python.exe
C:/Users/xxxxx/pythonscript.py"
exitLoop = 0
wait for Python to finish its work.
Do
waitTime = TimeSerial(Hour(Now), Minute(Now), Second(Now) + 30)
Application.Wait waitTime
Set wb2 = Workbooks.Open("D:\xxxxx.xlsx", ReadOnly:=True)
exitLoop = wb2.Worksheets("blablabla").Cells(50, 1)
wb2.Close exitLoop
Loop While exitLoop <> 1
Call VbaScript
There are several ways to synchronize access to a static variable.
Use a synchronized static method. This synchronizes on the class object.
public class Test {
private static int count = 0;
public static synchronized void incrementCount() {
count++;
}
}
Explicitly synchronize on the class object.
public class Test {
private static int count = 0;
public void incrementCount() {
synchronized (Test.class) {
count++;
}
}
}
Synchronize on some other static object.
public class Test {
private static int count = 0;
private static final Object countLock = new Object();
public void incrementCount() {
synchronized (countLock) {
count++;
}
}
}
Method 3 is the best in many cases because the lock object is not exposed outside of your class.
I'm afraid there is not such a function. You'll need a macro to acomplish this task.
You could do something like this in column E(remember to set custom format "dd/mm/yyyy hh:mm"):
=If(B1="";"";Now())
But it will change value everytime file opens.
You'll need save the value via macro.
If you're using lodash and in the mood for a too-cute-for-its-own-good one-liner:
_.map(_.words('123, 124, 234,252'), _.add.bind(1, 1));
It's surprisingly robust thanks to lodash's powerful parsing capabilities.
If you want one that will also clean non-digit characters out of the string (and is easier to follow...and not quite so cutesy):
_.chain('123, 124, 234,252, n301')
.replace(/[^\d,]/g, '')
.words()
.map(_.partial(_.add, 1))
.value();
2017 edit:
I no longer recommend my previous solution. Besides being overkill and already easy to do without a third-party library, it makes use of _.chain, which has a variety of issues. Here's the solution I would now recommend:
const str = '123, 124, 234,252';
const arr = str.split(',').map(n => parseInt(n, 10) + 1);
My old answer is still correct, so I'll leave it for the record, but there's no need to use it nowadays.
<div onclick="alert('you clicked the header')" class="header">
<span onclick="alert('you clicked inside the header'); event.stopPropagation()">
something inside the header
</span>
</div>
To make a new list retaining the order of first elements of duplicates in L
newlist=[ii for n,ii in enumerate(L) if ii not in L[:n]]
for example if L=[1, 2, 2, 3, 4, 2, 4, 3, 5]
then newlist
will be [1,2,3,4,5]
This checks each new element has not appeared previously in the list before adding it. Also it does not need imports.
I had two interfaces. First was child of other. I did following:
as
keyword.Complete code is as below:
Child Interface:
interface UVAmount {
amount: number;
price: number;
quantity: number;
};
Parent Interface:
interface UVItem {
// This is index signature which compiler is complaining about.
// Here we are mentioning key will string and value will any of the types mentioned.
[key: string]: UVAmount | string | number | object;
name: string;
initial: UVAmount;
rating: number;
others: object;
};
React Component:
let valueType = 'initial';
function getTotal(item: UVItem) {
// as keyword is the dealbreaker.
// If you don't use it, it will take string type by default and show errors.
let itemValue = item[valueType] as UVAmount;
return itemValue.price * itemValue.quantity;
}
That is okay for removing of data connections by using VBA as follows:
Sub deleteConn()
Dim xlBook As Workbook
Dim Cn As WorkbookConnection
Dim xlSheet As Worksheet
Dim Qt As QueryTable
Set xlBook = ActiveWorkbook
For Each Cn In xlBook.Connections
Debug.Print VarType(Cn)
Cn.Delete
Next Cn
For Each xlSheet In xlBook.Worksheets
For Each Qt In xlSheet.QueryTables
Debug.Print Qt.Name
Qt.Delete
Next Qt
Next xlSheet
End Sub
This problem can generally occur when you do not enable two step verification for the gmail
account (which can be done here) you are using to send an email
. So first, enable two step verification
, you can find plenty of resources for enabling two step verification. After you enable it, then you have to create an app password
. And use the app password
in your .env
file. When you are done with it, your .env
file will look something like.
MAIL_DRIVER=smtp
MAIL_HOST=smtp.gmail.com
MAIL_PORT=587
MAIL_USERNAME=<<your email address>>
MAIL_PASSWORD=<<app password>>
MAIL_ENCRYPTION=tls
and your mail.php
<?php
return [
'driver' => env('MAIL_DRIVER', 'smtp'),
'host' => env('MAIL_HOST', 'smtp.gmail.com'),
'port' => env('MAIL_PORT', 587),
'from' => ['address' => '<<your email>>', 'name' => '<<any name>>'],
'encryption' => env('MAIL_ENCRYPTION', 'tls'),
'username' => env('MAIL_USERNAME'),
'password' => env('MAIL_PASSWORD'),
'sendmail' => '/usr/sbin/sendmail -bs',
'pretend' => false,
];
After doing so, run php artisan config:cache
and php artisan config:clear
, then check, email should work.
Use $_SERVER['HTTPS']
to tell if it is SSL, and redirect to the right place if not.
And remember, the page that displays the form does not need to be fed via HTTPS, it's the post back URL that needs it most.
Edit: yes, as is pointed out below, it's best to have the entire process in HTTPS. It's much more reassuring - I was pointing out that the post is the most critical part. Also, you need to take care that any cookies are set to be secure, so they will only be sent via SSL. The mod_rewrite solution is also very nifty, I've used it to secure a lot of applications on my own website.
I think, here, right click is not mentioned, @Jishnu V S.
document.onkeydown = function(e) {
if(e.keyCode == 123) {
return false;
}
if(e.ctrlKey && e.shiftKey && e.keyCode == 'I'.charCodeAt(0)){
return false;
}
if(e.ctrlKey && e.shiftKey && e.keyCode == 'J'.charCodeAt(0)){
return false;
}
if(e.ctrlKey && e.keyCode == 'U'.charCodeAt(0)){
return false;
}
if(e.ctrlKey && e.shiftKey && e.keyCode == 'C'.charCodeAt(0)){
return false;
}
}
_x000D_
As well as escaping quotes with backslashes, also see SO question 2911073 which explains how you could alternatively use double-quoting in a @-prefixed string:
string msg = @"I want to learn ""c#""";
You can get all checked checkboxes like this:
var boxes = $(":checkbox:checked");
And all non-checked like this:
var nboxes = $(":checkbox:not(:checked)");
You could merely cycle through either one of these collections, and store those names. If anything is absent, you know it either was or wasn't checked. In PHP, if you had an array of names which were checked, you could simply do an in_array()
request to know whether or not any particular box should be checked at a later date.
jQuery also has a serialize method that will maintain the state of your form controls. For instance, the example provided on jQuery's website follows:
single=Single2&multiple=Multiple&multiple=Multiple3&check=check2&radio=radio2
This will enable you to keep the information for which elements were checked as well.
In my case I had ran npm install
on previous version of node, after some day I upgraded node version and ram npm install
for few modules. After this I was getting this error.
To fix this problem I deleted node_module folder from each project and ran npm install
again.
Hope this might fix the problem.
Note : This was happening on my local machine and it got fixed on local machine only.
In code, you could do
ed_ins.setInputType(InputType.TYPE_CLASS_NUMBER);
If you are using Python2.6 or newer, it's convenient to use socket.create_connection
sock = socket.create_connection(address, timeout=10)
sock.settimeout(None)
fileobj = sock.makefile('rb', 0)
I didn't have luck with any of these suggestions. My string contained unicode bullet points and I suspect they were causing grief in the calculation. I noticed UITextView was handling the drawing fine, so I looked to that to leverage its calculation. I did the following, which is probably not as optimal as the NSString drawing methods, but at least it's accurate. It's also slightly more optimal than initialising a UITextView just to call -sizeThatFits:
.
NSTextContainer *textContainer = [[NSTextContainer alloc] initWithSize:CGSizeMake(width, CGFLOAT_MAX)];
NSLayoutManager *layoutManager = [[NSLayoutManager alloc] init];
[layoutManager addTextContainer:textContainer];
NSTextStorage *textStorage = [[NSTextStorage alloc] initWithAttributedString:formattedString];
[textStorage addLayoutManager:layoutManager];
const CGFloat formattedStringHeight = ceilf([layoutManager usedRectForTextContainer:textContainer].size.height);
another solution using awk script:
last 1 char:
echo $str | awk '{print substr($0,length,1)}'
last 5 chars:
echo $str | awk '{print substr($0,length-5,5)}'
You have to delete the deployment key first if you are going to add the same key under Manage Account SSH Key.
The following event listener solved this nicely for me even when using multiple markers and info windows:
//Add click event listener
google.maps.event.addListener(marker, 'click', function() {
// Helper to check if the info window is already open
google.maps.InfoWindow.prototype.isOpen = function(){
var map = infoWindow.getMap();
return (map !== null && typeof map !== "undefined");
}
// Do the check
if (infoWindow.isOpen()){
// Close the info window
infoWindow.close();
} else {
//Set the new content
infoWindow.setContent(contentString);
//Open the infowindow
infoWindow.open(map, marker);
}
});
another alternative when grep doesn't have the -L option (IBM AIX for example), with nothing but grep and the shell :
for file in * ; do grep -q 'my_pattern' $file || echo $file ; done
You could use the .NET library to do the same thing which i believe is more straightforward.
string ConnectionString = "Provider=Microsoft.ACE.OLEDB.12.0; data source={path of your excel file}; Extended Properties=Excel 12.0;";
OleDbConnection objConn = null;
System.Data.DataTable dt = null;
//Create connection object by using the preceding connection string.
objConn = new OleDbConnection(connString);
objConn.Open();
//Get the data table containg the schema guid.
dt = objConn.GetOleDbSchemaTable(OleDbSchemaGuid.Tables, null);
string sql = string.Format("select * from [{0}$]", sheetName);
var adapter = new System.Data.OleDb.OleDbDataAdapter(sql, ConnectionString);
var ds = new System.Data.DataSet();
string tableName = sheetName;
adapter.Fill(ds, tableName);
System.Data.DataTable data = ds.Tables[tableName];
After you have your data in the datatable you can access them as you would normally do with a DataTable class.
public mySentences:Array<any> = [
{id: 1, text: 'Sentence 1'},
{id: 2, text: 'Sentence 2'},
{id: 3, text: 'Sentence 3'},
{id: 4, text: 'Sentenc4 '},
];
OR
public mySentences:Array<object> = [
{id: 1, text: 'Sentence 1'},
{id: 2, text: 'Sentence 2'},
{id: 3, text: 'Sentence 3'},
{id: 4, text: 'Sentenc4 '},
];
you had this
destination = Node(key: String?, neighbors: [Edge!], visited: Bool, lat: Double, long: Double)
which was place holder text above you need to insert some values
class Edge{
}
public class Node{
var key: String?
var neighbors: [Edge]
var visited: Bool = false
var lat: Double
var long: Double
init(key: String?, neighbors: [Edge], visited: Bool, lat: Double, long: Double) {
self.neighbors = [Edge]()
self.key = key
self.visited = visited
self.lat = lat
self.long = long
}
}
class Path {
var total: Int!
var destination: Node
var previous: Path!
init(){
destination = Node(key: "", neighbors: [], visited: true, lat: 12.2, long: 22.2)
}
}
if ls /some/dir/* >/dev/null 2>&1 ; then echo "huzzah"; fi;
import UIKit
/*
Here is simple subclass for CAAnimation which create a fadeIn animation
*/
class FadeInAdnimation: CABasicAnimation {
override init() {
super.init()
keyPath = "opacity"
duration = 2.0
fromValue = 0
toValue = 1
fillMode = CAMediaTimingFillMode.forwards
isRemovedOnCompletion = false
}
required init?(coder aDecoder: NSCoder) {
super.init(coder: aDecoder)
}
}
/*
Example of usage
*/
class ViewController: UIViewController {
weak var label: UILabel!
override func loadView() {
let view = UIView()
view.backgroundColor = .white
let label = UILabel()
label.alpha = 0
label.frame = CGRect(x: 150, y: 200, width: 200, height: 20)
label.text = "Hello World!"
label.textColor = .black
view.addSubview(label)
self.label = label
let button = UIButton(type: .custom)
button.frame = CGRect(x: 0, y: 250, width: 300, height: 100)
button.setTitle("Press to Start FadeIn", for: UIControl.State())
button.backgroundColor = .red
button.addTarget(self, action: #selector(startFadeIn), for: .touchUpInside)
view.addSubview(button)
self.view = view
}
/*
Animation in action
*/
@objc private func startFadeIn() {
label.layer.add(FadeInAdnimation(), forKey: "fadeIn")
}
}
I don't know why everyone is using 2 copies of the same list to solve this. This uses too much RAM...
Why not just hide the elements that are not found, and simply store their index in a Set
to be able to restore them later? That's much less RAM especially if your objects are quite large.
public class MyRecyclerViewAdapter extends RecyclerView.Adapter<MyRecyclerViewAdapter.SampleViewHolders>{
private List<MyObject> myObjectsList; //holds the items of type MyObject
private Set<Integer> foundObjects; //holds the indices of the found items
public MyRecyclerViewAdapter(Context context, List<MyObject> myObjectsList)
{
this.myObjectsList = myObjectsList;
this.foundObjects = new HashSet<>();
//first, add all indices to the indices set
for(int i = 0; i < this.myObjectsList.size(); i++)
{
this.foundObjects.add(i);
}
}
@NonNull
@Override
public SampleViewHolders onCreateViewHolder(@NonNull ViewGroup parent, int viewType) {
View layoutView = LayoutInflater.from(parent.getContext()).inflate(
R.layout.my_layout_for_staggered_grid, null);
MyRecyclerViewAdapter.SampleViewHolders rcv = new MyRecyclerViewAdapter.SampleViewHolders(layoutView);
return rcv;
}
@Override
public void onBindViewHolder(@NonNull SampleViewHolders holder, int position)
{
//look for object in O(1) in the indices set
if(!foundObjects.contains(position))
{
//object not found => hide it.
holder.hideLayout();
return;
}
else
{
//object found => show it.
holder.showLayout();
}
//holder.imgImageView.setImageResource(...)
//holder.nameTextView.setText(...)
}
@Override
public int getItemCount() {
return myObjectsList.size();
}
public void findObject(String text)
{
//look for "text" in the objects list
for(int i = 0; i < myObjectsList.size(); i++)
{
//if it's empty text, we want all objects, so just add it to the set.
if(text.length() == 0)
{
foundObjects.add(i);
}
else
{
//otherwise check if it meets your search criteria and add it or remove it accordingly
if (myObjectsList.get(i).getName().toLowerCase().contains(text.toLowerCase()))
{
foundObjects.add(i);
}
else
{
foundObjects.remove(i);
}
}
}
notifyDataSetChanged();
}
public class SampleViewHolders extends RecyclerView.ViewHolder implements View.OnClickListener
{
public ImageView imgImageView;
public TextView nameTextView;
private final CardView layout;
private final CardView.LayoutParams hiddenLayoutParams;
private final CardView.LayoutParams shownLayoutParams;
public SampleViewHolders(View itemView)
{
super(itemView);
itemView.setOnClickListener(this);
imgImageView = (ImageView) itemView.findViewById(R.id.some_image_view);
nameTextView = (TextView) itemView.findViewById(R.id.display_name_textview);
layout = itemView.findViewById(R.id.card_view); //card_view is the id of my androidx.cardview.widget.CardView in my xml layout
//prepare hidden layout params with height = 0, and visible layout params for later - see hideLayout() and showLayout()
hiddenLayoutParams = new CardView.LayoutParams(ViewGroup.LayoutParams.MATCH_PARENT,
ViewGroup.LayoutParams.WRAP_CONTENT);
hiddenLayoutParams.height = 0;
shownLayoutParams = new CardView.LayoutParams(ViewGroup.LayoutParams.MATCH_PARENT,
ViewGroup.LayoutParams.WRAP_CONTENT);
}
@Override
public void onClick(View view)
{
//implement...
}
private void hideLayout() {
//hide the layout
layout.setLayoutParams(hiddenLayoutParams);
}
private void showLayout() {
//show the layout
layout.setLayoutParams(shownLayoutParams);
}
}
}
And I simply have an EditText
as my search box:
cardsSearchTextView.addTextChangedListener(new TextWatcher() {
@Override
public void beforeTextChanged(CharSequence charSequence, int i, int i1, int i2) {
}
@Override
public void onTextChanged(CharSequence charSequence, int i, int i1, int i2) {
}
@Override
public void afterTextChanged(Editable editable) {
myViewAdapter.findObject(editable.toString().toLowerCase());
}
});
Result:
I have the same error as this topic when I restore a new database using an old database. (using .bak gives the same error)
I Changed the name of old database by name of new database (same this picture). It worked.
Personally I prefer making it in two seperate sections but within the same PHP like:
<?php
if (question1) { $variable_1 = somehtml; }
else { $variable_1 = someotherhtml; }
if (question2) {
$variable_2 = somehtml2;
}
else {
$variable_2 = someotherhtml2;
}
etc.
$output=<<<HERE
htmlhtmlhtml$variable1htmlhtmlhtml$varianble2htmletcetcetc
HERE;
echo $output;
?>
But maybe it is slower?
https://socket.io/docs/client-api/#socket-send-args-ack
socket.send
// Sends a message event
socket.emit(eventName[, ...args][, ack])
// you can custom eventName
Single elements of a tuple a
can be accessed -in an indexed array-like fashion-
via a[0]
, a[1]
, ... depending on the number of elements in the tuple.
If your tuple is a=(3,"a")
a[0]
yields 3
,a[1]
yields "a"
def tup():
return (3, "hello")
tup()
returns a 2-tuple.
In order to "solve"
i = 5 + tup() # I want to add just the three
you select the 3 by
tup()[0| #first element
so in total
i = 5 + tup()[0]
Go with namedtuple that allows you to access tuple elements by name (and by index). Details at https://docs.python.org/3/library/collections.html#collections.namedtuple
>>> import collections
>>> MyTuple=collections.namedtuple("MyTuple", "mynumber, mystring")
>>> m = MyTuple(3, "hello")
>>> m[0]
3
>>> m.mynumber
3
>>> m[1]
'hello'
>>> m.mystring
'hello'
There isn't a 'correct way'. They're all syntactically correct, though there are some conventions. You could follow the Google style guide, although there are others out there.
From said guide:
Regular functions have mixed case; accessors and mutators match the name of the variable: MyExcitingFunction(), MyExcitingMethod(), my_exciting_member_variable(), set_my_exciting_member_variable().
All Google Maps JavaScript API applications require authentication( API KEY )
<script src="https://maps.googleapis.com/maps/api/js?libraries=places&key=(Paste YOUR API KEY)"></script>
I think in your private key definition, You should replace:
X509EncodedKeySpec spec = new X509EncodedKeySpec(decoded);
with:
PKCS8EncodedKeySpec spec = new PKCS8EncodedKeySpec(decoded);
Look your openssl
command:
$openssl **pkcs8** -topk8 -inform PEM -outform PEM -in mykey.pem \ -out private_key.pem -nocrypt
And the java Exception:
Only PCKS8 codification
from IPython import get_ipython;
get_ipython().magic('reset -sf')
import java.io.BufferedReader;
import java.io.File;
import java.io.FileOutputStream;
import java.io.IOException;
import java.io.InputStream;
import java.io.InputStreamReader;
import java.io.Reader;
import java.io.StringWriter;
import java.io.UnsupportedEncodingException;
import java.io.Writer;
import java.net.URI;
import java.net.URISyntaxException;
import java.util.ArrayList;
import java.util.List;
import java.util.Scanner;
import java.util.logging.Formatter;
import java.util.logging.Handler;
import java.util.logging.Level;
import java.util.logging.LogRecord;
import java.util.logging.Logger;
import java.util.regex.Pattern;
import org.apache.http.HttpEntity;
import org.apache.http.HttpResponse;
import org.apache.http.NameValuePair;
import org.apache.http.client.CookieStore;
import org.apache.http.client.HttpClient;
import org.apache.http.client.methods.HttpGet;
import org.apache.http.client.protocol.ClientContext;
import org.apache.http.client.utils.URIUtils;
import org.apache.http.client.utils.URLEncodedUtils;
import org.apache.http.impl.client.BasicCookieStore;
import org.apache.http.impl.client.DefaultHttpClient;
import org.apache.http.message.BasicNameValuePair;
import org.apache.http.protocol.BasicHttpContext;
import org.apache.http.protocol.HttpContext;
public class JavaYoutubeDownloader {
public static String newline = System.getProperty("line.separator");
private static final Logger log = Logger.getLogger(JavaYoutubeDownloader.class.getCanonicalName());
private static final Level defaultLogLevelSelf = Level.FINER;
private static final Level defaultLogLevel = Level.WARNING;
private static final Logger rootlog = Logger.getLogger("");
private static final String scheme = "http";
private static final String host = "www.youtube.com";
private static final Pattern commaPattern = Pattern.compile(",");
private static final Pattern pipePattern = Pattern.compile("\\|");
private static final char[] ILLEGAL_FILENAME_CHARACTERS = { '/', '\n', '\r', '\t', '\0', '\f', '`', '?', '*', '\\', '<', '>', '|', '\"', ':' };
private static void usage(String error) {
if (error != null) {
System.err.println("Error: " + error);
}
System.err.println("usage: JavaYoutubeDownload VIDEO_ID DESTINATION_DIRECTORY");
System.exit(-1);
}
public static void main(String[] args) {
if (args == null || args.length == 0) {
usage("Missing video id. Extract from http://www.youtube.com/watch?v=VIDEO_ID");
}
try {
setupLogging();
log.fine("Starting");
String videoId = null;
String outdir = ".";
// TODO Ghetto command line parsing
if (args.length == 1) {
videoId = args[0];
} else if (args.length == 2) {
videoId = args[0];
outdir = args[1];
}
int format = 18; // http://en.wikipedia.org/wiki/YouTube#Quality_and_codecs
String encoding = "UTF-8";
String userAgent = "Mozilla/5.0 (Windows; U; Windows NT 6.1; en-US; rv:1.9.2.13) Gecko/20101203 Firefox/3.6.13";
File outputDir = new File(outdir);
String extension = getExtension(format);
play(videoId, format, encoding, userAgent, outputDir, extension);
} catch (Throwable t) {
t.printStackTrace();
}
log.fine("Finished");
}
private static String getExtension(int format) {
// TODO
return "mp4";
}
private static void play(String videoId, int format, String encoding, String userAgent, File outputdir, String extension) throws Throwable {
log.fine("Retrieving " + videoId);
List<NameValuePair> qparams = new ArrayList<NameValuePair>();
qparams.add(new BasicNameValuePair("video_id", videoId));
qparams.add(new BasicNameValuePair("fmt", "" + format));
URI uri = getUri("get_video_info", qparams);
CookieStore cookieStore = new BasicCookieStore();
HttpContext localContext = new BasicHttpContext();
localContext.setAttribute(ClientContext.COOKIE_STORE, cookieStore);
HttpClient httpclient = new DefaultHttpClient();
HttpGet httpget = new HttpGet(uri);
httpget.setHeader("User-Agent", userAgent);
log.finer("Executing " + uri);
HttpResponse response = httpclient.execute(httpget, localContext);
HttpEntity entity = response.getEntity();
if (entity != null && response.getStatusLine().getStatusCode() == 200) {
InputStream instream = entity.getContent();
String videoInfo = getStringFromInputStream(encoding, instream);
if (videoInfo != null && videoInfo.length() > 0) {
List<NameValuePair> infoMap = new ArrayList<NameValuePair>();
URLEncodedUtils.parse(infoMap, new Scanner(videoInfo), encoding);
String token = null;
String downloadUrl = null;
String filename = videoId;
for (NameValuePair pair : infoMap) {
String key = pair.getName();
String val = pair.getValue();
log.finest(key + "=" + val);
if (key.equals("token")) {
token = val;
} else if (key.equals("title")) {
filename = val;
} else if (key.equals("fmt_url_map")) {
String[] formats = commaPattern.split(val);
for (String fmt : formats) {
String[] fmtPieces = pipePattern.split(fmt);
if (fmtPieces.length == 2) {
// in the end, download somethin!
downloadUrl = fmtPieces[1];
int pieceFormat = Integer.parseInt(fmtPieces[0]);
if (pieceFormat == format) {
// found what we want
downloadUrl = fmtPieces[1];
break;
}
}
}
}
}
filename = cleanFilename(filename);
if (filename.length() == 0) {
filename = videoId;
} else {
filename += "_" + videoId;
}
filename += "." + extension;
File outputfile = new File(outputdir, filename);
if (downloadUrl != null) {
downloadWithHttpClient(userAgent, downloadUrl, outputfile);
}
}
}
}
private static void downloadWithHttpClient(String userAgent, String downloadUrl, File outputfile) throws Throwable {
HttpGet httpget2 = new HttpGet(downloadUrl);
httpget2.setHeader("User-Agent", userAgent);
log.finer("Executing " + httpget2.getURI());
HttpClient httpclient2 = new DefaultHttpClient();
HttpResponse response2 = httpclient2.execute(httpget2);
HttpEntity entity2 = response2.getEntity();
if (entity2 != null && response2.getStatusLine().getStatusCode() == 200) {
long length = entity2.getContentLength();
InputStream instream2 = entity2.getContent();
log.finer("Writing " + length + " bytes to " + outputfile);
if (outputfile.exists()) {
outputfile.delete();
}
FileOutputStream outstream = new FileOutputStream(outputfile);
try {
byte[] buffer = new byte[2048];
int count = -1;
while ((count = instream2.read(buffer)) != -1) {
outstream.write(buffer, 0, count);
}
outstream.flush();
} finally {
outstream.close();
}
}
}
private static String cleanFilename(String filename) {
for (char c : ILLEGAL_FILENAME_CHARACTERS) {
filename = filename.replace(c, '_');
}
return filename;
}
private static URI getUri(String path, List<NameValuePair> qparams) throws URISyntaxException {
URI uri = URIUtils.createURI(scheme, host, -1, "/" + path, URLEncodedUtils.format(qparams, "UTF-8"), null);
return uri;
}
private static void setupLogging() {
changeFormatter(new Formatter() {
@Override
public String format(LogRecord arg0) {
return arg0.getMessage() + newline;
}
});
explicitlySetAllLogging(Level.FINER);
}
private static void changeFormatter(Formatter formatter) {
Handler[] handlers = rootlog.getHandlers();
for (Handler handler : handlers) {
handler.setFormatter(formatter);
}
}
private static void explicitlySetAllLogging(Level level) {
rootlog.setLevel(Level.ALL);
for (Handler handler : rootlog.getHandlers()) {
handler.setLevel(defaultLogLevelSelf);
}
log.setLevel(level);
rootlog.setLevel(defaultLogLevel);
}
private static String getStringFromInputStream(String encoding, InputStream instream) throws UnsupportedEncodingException, IOException {
Writer writer = new StringWriter();
char[] buffer = new char[1024];
try {
Reader reader = new BufferedReader(new InputStreamReader(instream, encoding));
int n;
while ((n = reader.read(buffer)) != -1) {
writer.write(buffer, 0, n);
}
} finally {
instream.close();
}
String result = writer.toString();
return result;
}
}
/**
* <pre>
* Exploded results from get_video_info:
*
* fexp=90...
* allow_embed=1
* fmt_stream_map=35|http://v9.lscache8...
* fmt_url_map=35|http://v9.lscache8...
* allow_ratings=1
* keywords=Stefan Molyneux,Luke Bessey,anarchy,stateless society,giant stone cow,the story of our unenslavement,market anarchy,voluntaryism,anarcho capitalism
* track_embed=0
* fmt_list=35/854x480/9/0/115,34/640x360/9/0/115,18/640x360/9/0/115,5/320x240/7/0/0
* author=lukebessey
* muted=0
* length_seconds=390
* plid=AA...
* ftoken=null
* status=ok
* watermark=http://s.ytimg.com/yt/swf/logo-vfl_bP6ud.swf,http://s.ytimg.com/yt/swf/hdlogo-vfloR6wva.swf
* timestamp=12...
* has_cc=False
* fmt_map=35/854x480/9/0/115,34/640x360/9/0/115,18/640x360/9/0/115,5/320x240/7/0/0
* leanback_module=http://s.ytimg.com/yt/swfbin/leanback_module-vflJYyeZN.swf
* hl=en_US
* endscreen_module=http://s.ytimg.com/yt/swfbin/endscreen-vflk19iTq.swf
* vq=auto
* avg_rating=5.0
* video_id=S6IZP3yRJ9I
* token=vPpcFNh...
* thumbnail_url=http://i4.ytimg.com/vi/S6IZP3yRJ9I/default.jpg
* title=The Story of Our Unenslavement - Animated
* </pre>
*/
It blocks the thread. If you look in Modules/timemodule.c in the Python source, you'll see that in the call to floatsleep()
, the substantive part of the sleep operation is wrapped in a Py_BEGIN_ALLOW_THREADS and Py_END_ALLOW_THREADS block, allowing other threads to continue to execute while the current one sleeps. You can also test this with a simple python program:
import time
from threading import Thread
class worker(Thread):
def run(self):
for x in xrange(0,11):
print x
time.sleep(1)
class waiter(Thread):
def run(self):
for x in xrange(100,103):
print x
time.sleep(5)
def run():
worker().start()
waiter().start()
Which will print:
>>> thread_test.run()
0
100
>>> 1
2
3
4
5
101
6
7
8
9
10
102
In my point of view,
If you dont use Integrated security=SSPI,then you need to hardcode the username and password in the connection string which means "relatively insecure" why because, all the employees have the access even ex-employee could use the information maliciously.
if anyone gets in here again this worked for me...
"aoColumnDefs": [{ "bVisible": false, "aTargets": [0] }]
I had this when build my application with "All cpu" target while it referenced a 3rd party x64-only (managed) dll.
Try this:
CASE WHEN table3.col3 IS NULL THEN table2.col3 ELSE table3.col3 END as col4
The as col4
should go at the end of the CASE the statement. Also note that you're missing the END
too.
Another probably more simple option would be:
IIf([table3.col3] Is Null,[table2.col3],[table3.col3])
Just to clarify, MS Access does not support COALESCE. If it would that would be the best way to go.
Edit after radical question change:
To turn the query into SQL Server then you can use COALESCE (so it was technically answered before too):
SELECT dbo.AdminID.CountryID, dbo.AdminID.CountryName, dbo.AdminID.RegionID,
dbo.AdminID.[Region name], dbo.AdminID.DistrictID, dbo.AdminID.DistrictName,
dbo.AdminID.ADMIN3_ID, dbo.AdminID.ADMIN3,
COALESCE(dbo.EU_Admin3.EUID, dbo.EU_Admin2.EUID)
FROM dbo.AdminID
BTW, your CASE statement was missing a ,
before the field. That's why it didn't work.
What about constructing the element using jQuery? e.g.
$("<div></div>")
creates a new div element, ready to be added to the page. Can be shortened further to
$("<div>")
then you can chain on commands that you need, set up event handlers and append it to the DOM. For example
$('<div id="myid">Div Content</div>')
.bind('click', function(e) { /* event handler here */ })
.appendTo('#myOtherDiv');
For C++, it can generate real float numbers within the range specified by dist
variable
#include <random> //If it doesnt work then use #include <tr1/random>
#include <iostream>
using namespace std;
typedef std::tr1::ranlux64_base_01 Myeng;
typedef std::tr1::normal_distribution<double> Mydist;
int main() {
Myeng eng;
eng.seed((unsigned int) time(NULL)); //initializing generator to January 1, 1970);
Mydist dist(1,10);
dist.reset(); // discard any cached values
for (int i = 0; i < 10; i++)
{
std::cout << "a random value == " << (int)dist(eng) << std::endl;
}
return (0);
}
This solution switches on and off
<script>
$(document).ready(function() {
// close all dropdowns that are open
$('body').click(function(e) {
$('.nav-item.show').removeClass('show');
//$('.nav-item.clicked').removeClass('clicked');
$('.dropdown-menu.show').removeClass('show');
});
$('.nav-item').click( function(e) {
$(this).addClass('clicked')
});
// show dropdown for the link clicked
$('.nav-item').hover(function(e) {
if ($('.nav-item.show').length < 1) {
$('.nav-item.clicked').removeClass('clicked');
}
if ($('.nav-item.clicked').length < 1) {
$('.nav-item.show').removeClass('show');
$('.dropdown-menu.show').removeClass('show');
$dd = $(this).find('.dropdown-menu');
$dd.parent().addClass('show');
$dd.addClass('show');
}
});
});</script>
To disable the hover for lg sized collapse menus add
if(( $(window).width() >= 992 )) {
Please have a look
<!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">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<title>Untitled Document</title>
<style>
.box{ width:500px; height:200px; background:#000; border:2px solid #ccc;}
.inner-border {
border: 20px solid black;
box-shadow: inset 0px 0px 0px 10px red;
box-sizing: border-box; /* Include padding and border in element's width and height */
}
/* CSS3 solution only for rectangular shape */
.inner-outline {
outline: 10px solid red;
outline-offset: -30px;
}
</style>
</head>
<body>
<div class="box inner-border inner-outline"></div>
</body>
</html>
I'm not sure what jQuery api you're looking at, but you should only have to specify id
.
$('#thumb').removeAttr('id');
The easiest thing i did was,
changed my Indentation to Tabs
and it resolved my problem.
You can do the same,
to Spaces
as well as per your need.
Mentioned the snapshot of the same.
You probably meant this:
require 'active_support/core_ext' # for titleize
myHash = {company_name:"MyCompany", street:"Mainstreet", postcode:"1234", city:"MyCity", free_seats:"3"}
def cleanup string
string.titleize
end
def format(hash)
output = {}
output[:company_name] = cleanup(hash[:company_name])
output[:street] = cleanup(hash[:street])
output
end
format(myHash) # => {:company_name=>"My Company", :street=>"Mainstreet"}
Please read documentation on Hash#each
I was having the same issue, I even added style="display: none" to each cell.
In the end I used HTML comments
<!-- [HTML] -->
This is the easy way to do this
var value = 5 + "" + 6;
All the answers above are correct. But just note that you'll be passing the reference to the string array when you pass like this. If you make any modifications to the array in your called function, it will be reflected in the calling function also.
There is another concept called variable arguments in Java which you can look into. It basically works like this. Eg:-
String concat (String ... strings)
{
StringBuilder sb = new StringBuilder ();
for (int i = 0; i < strings.length; i++)
sb.append (strings [i]);
return sb.toString ();
}
Here we can call the function like concat(a,b,c,d) or any number of params you want.
More Info: http://today.java.net/pub/a/today/2004/04/19/varargs.html
First of all, check out my post on retained Fragments. It might help.
Now to answer your questions:
Does the fragment also retain its
viewstate, or will this be recreated on configuration change - what exactly is "retained"?
Yes, the Fragment
's state will be retained across the configuration change. Specifically, "retained" means that the fragment will not be destroyed on configuration changes. That is, the Fragment
will be retained even if the configuration change causes the underlying Activity
to be destroyed.
Will the fragment be destroyed when the user leaves the activity?
Just like Activity
s, Fragment
s may be destroyed by the system when memory resources are low. Whether you have your fragments retain their instance state across configuration changes will have no effect on whether or not the system will destroy the Fragment
s once you leave the Activity
. If you leave the Activity
(i.e. by pressing the home button), the Fragment
s may or may not be destroyed. If you leave the Activity
by pressing the back button (thus, calling finish()
and effectively destroying the Activity
), all of the Activity
s attached Fragment
s will also be destroyed.
Why doesn't it work with fragments on the back stack?
There are probably multiple reasons why it's not supported, but the most obvious reason to me is that the Activity
holds a reference to the FragmentManager
, and the FragmentManager
manages the backstack. That is, no matter if you choose to retain your Fragment
s or not, the Activity
(and thus the FragmentManager
's backstack) will be destroyed on a configuration change. Another reason why it might not work is because things might get tricky if both retained fragments and non-retained fragments were allowed to exist on the same backstack.
Which are the use cases where it makes sense to use this method?
Retained fragments can be quite useful for propagating state information — especially thread management — across activity instances. For example, a fragment can serve as a host for an instance of Thread
or AsyncTask
, managing its operation. See my blog post on this topic for more information.
In general, I would treat it similarly to using onConfigurationChanged
with an Activity
... don't use it as a bandaid just because you are too lazy to implement/handle an orientation change correctly. Only use it when you need to.
The existing answers said could join()
each thread.
But there are several ways to get the thread array / list:
ThreadGroup
to manage the threads.Following code will use the ThreadGruop
approach. It create a group first, then when create each thread specify the group in constructor, later could get the thread array via ThreadGroup.enumerate()
SyncBlockLearn.java
import org.testng.Assert;
import org.testng.annotations.Test;
/**
* synchronized block - learn,
*
* @author eric
* @date Apr 20, 2015 1:37:11 PM
*/
public class SyncBlockLearn {
private static final int TD_COUNT = 5; // thread count
private static final int ROUND_PER_THREAD = 100; // round for each thread,
private static final long INC_DELAY = 10; // delay of each increase,
// sync block test,
@Test
public void syncBlockTest() throws InterruptedException {
Counter ct = new Counter();
ThreadGroup tg = new ThreadGroup("runner");
for (int i = 0; i < TD_COUNT; i++) {
new Thread(tg, ct, "t-" + i).start();
}
Thread[] tArr = new Thread[TD_COUNT];
tg.enumerate(tArr); // get threads,
// wait all runner to finish,
for (Thread t : tArr) {
t.join();
}
System.out.printf("\nfinal count: %d\n", ct.getCount());
Assert.assertEquals(ct.getCount(), TD_COUNT * ROUND_PER_THREAD);
}
static class Counter implements Runnable {
private final Object lkOn = new Object(); // the object to lock on,
private int count = 0;
@Override
public void run() {
System.out.printf("[%s] begin\n", Thread.currentThread().getName());
for (int i = 0; i < ROUND_PER_THREAD; i++) {
synchronized (lkOn) {
System.out.printf("[%s] [%d] inc to: %d\n", Thread.currentThread().getName(), i, ++count);
}
try {
Thread.sleep(INC_DELAY); // wait a while,
} catch (InterruptedException e) {
e.printStackTrace();
}
}
System.out.printf("[%s] end\n", Thread.currentThread().getName());
}
public int getCount() {
return count;
}
}
}
The main thread will wait for all threads in the group to finish.
It's an old question, but I found this can be done easily with Spacy. Once the document is read, a simple api similarity
can be used to find the cosine similarity between the document vectors.
import spacy
nlp = spacy.load('en')
doc1 = nlp(u'Hello hi there!')
doc2 = nlp(u'Hello hi there!')
doc3 = nlp(u'Hey whatsup?')
print doc1.similarity(doc2) # 0.999999954642
print doc2.similarity(doc3) # 0.699032527716
print doc1.similarity(doc3) # 0.699032527716
First, we're talking about packaging a Node.js app for workshops, demos, etc. where it can be handy to have an app "just running" without the need for the end user to care about installation and dependencies.
You can try the following setup:
npm install
all dependencies (via package.json) to the local node_modules directory. It is important to perform this step on each platform you want to support separately, in case of binary dependencies.which node
.For Windows:
Create a self extracting archive, 7zip_extra supports a way to execute a command right after extraction, see: http://www.msfn.org/board/topic/39048-how-to-make-a-7-zip-switchless-installer/.
For OS X/Linux:
You can use tools like makeself or unzipsfx (I don't know if this is compiled with CHEAP_SFX_AUTORUN defined by default).
These tools will extract the archive to a temporary directory, execute the given command (e.g. node app.js
) and remove all files when finished.
Google shrinks their css classes etc., so it is not easy to identify everything.
Also you have the problem that you have to "wait" until the site shows the result. I would do it like this:
public static void main(String[] args) {
WebDriver driver = new FirefoxDriver();
driver.get("http://www.google.com");
WebElement element = driver.findElement(By.name("q"));
element.sendKeys("Cheese!\n"); // send also a "\n"
element.submit();
// wait until the google page shows the result
WebElement myDynamicElement = (new WebDriverWait(driver, 10))
.until(ExpectedConditions.presenceOfElementLocated(By.id("resultStats")));
List<WebElement> findElements = driver.findElements(By.xpath("//*[@id='rso']//h3/a"));
// this are all the links you like to visit
for (WebElement webElement : findElements)
{
System.out.println(webElement.getAttribute("href"));
}
}
This will print you:
I've tried the above answers but could not get them to work. The only code that worked for me was $window.location.search = ''
Ripping off Luc's comment here, but to return a blank response, like a 201
the simplest option is to use the following return in your route.
return "", 201
So for example:
@app.route('/database', methods=["PUT"])
def database():
update_database(request)
return "", 201
docker-compose up -d
docker ps
docker logs <containerid>
Go through C:\apache-tomcat-7.0.47\lib
path (this path may be differ based on where you installed the Tomcat server) then past ojdbc14.jar
if its not contain.
Then restart the server in eclipse then run your app on server
Here's a simple way using ngModel
(final Angular 2)
<!-- my.component.html -->
<div class="form-group">
<label for="options">Options:</label>
<div *ngFor="let option of options">
<label>
<input type="checkbox"
name="options"
value="{{option.value}}"
[(ngModel)]="option.checked"/>
{{option.name}}
</label>
</div>
</div>
// my.component.ts
@Component({ moduleId:module.id, templateUrl:'my.component.html'})
export class MyComponent {
options = [
{name:'OptionA', value:'1', checked:true},
{name:'OptionB', value:'2', checked:false},
{name:'OptionC', value:'3', checked:true}
]
get selectedOptions() { // right now: ['1','3']
return this.options
.filter(opt => opt.checked)
.map(opt => opt.value)
}
}
[self.view.layer setBorderColor: [UIColor colorWithRed:0.265 green:0.447 blue:0.767 alpha:1.0f].CGColor];
If empName is a VARCHAR(50) column:
ALTER TABLE Employees MODIFY COLUMN empName VARCHAR(50) AFTER department;
EDIT
Per the comments, you can also do this:
ALTER TABLE Employees CHANGE COLUMN empName empName VARCHAR(50) AFTER department;
Note that the repetition of empName
is deliberate. You have to tell MySQL that you want to keep the same column name.
You should be aware that both syntax versions are specific to MySQL. They won't work, for example, in PostgreSQL or many other DBMSs.
Another edit: As pointed out by @Luis Rossi in a comment, you need to completely specify the altered column definition just before the AFTER
modifier. The above examples just have VARCHAR(50)
, but if you need other characteristics (such as NOT NULL
or a default value) you need to include those as well. Consult the docs on ALTER TABLE
for more info.
How about this way?
['Cat', 'Dog', 'Bird'].index('Dog')
I had to insert date at the beginning of the lines of a log file and it's done like below:
DATE=$(date +"%Y-%m-%d")
awk '{ print "'"$DATE"'", $0; }' /path_to_log_file/log_file.log
It can be redirect to another file to save
If you wish to change the font color inside string.xml
file, you may try the following code.
<resources>
<string name="hello_world"><font fgcolor="#ffff0000">Hello world!</font></string>
</resources>
Another thing to notice is you are trying to convert a date in mm/dd/yyyy but if you have any plans of comparing this converted date to some other date then make sure to convert it in yyyy-mm-dd format only since to_char literally converts it into a string and with any other format we will get undesired result. For any more explanation follow this: Comparing Dates in Oracle SQL
one more if you want to switch IE 8 page render in IE 8 standard mode
<meta http-equiv="X-UA-Compatible" content="IE=100" /> <!-- IE8 mode -->
vehicle[] car = new vehicle[N];
Try this code,
public void ConnectToAccess()
{
System.Data.OleDb.OleDbConnection conn = new
System.Data.OleDb.OleDbConnection();
// TODO: Modify the connection string and include any
// additional required properties for your database.
conn.ConnectionString = @"Provider=Microsoft.Jet.OLEDB.4.0;" +
@"Data source= C:\Documents and Settings\username\" +
@"My Documents\AccessFile.mdb";
try
{
conn.Open();
// Insert code to process data.
}
catch (Exception ex)
{
MessageBox.Show("Failed to connect to data source");
}
finally
{
conn.Close();
}
}
http://msdn.microsoft.com/en-us/library/5ybdbtte(v=vs.71).aspx
As many have said before, web servers handle HTTP petitions, while application servers handle petitions for distributed components. So, maybe the easiest way to understand the difference is to compare the two products in regards to programming environment they offer.
IIS : ASP (.NET)
Tomcat : Servlet
Jetty : Servlet
Apache : Php, CGI
MTS : COM+
WAS : EJB
JBoss : EJB
WebLogic Application Server : EJB
The crucial difference is that application servers support some distributed component technology, providing features like remote invocation and distributed transactions, like EJB in Java world or COM+ on Microsoft platform. Http server often support some more simple programming environments, often scripting, like ASP (.NET) in case of Microsoft or Servlet--based, including JSP and many other in case of Java or PHP and CGI in case of Apache.
Other capabilities like load-balancing, clustering, session-failover, connection pooling etc. that used to be in the realm of application servers, are becoming available on web servers as well directly or through some third party products.
Finally, it is worth noting that the picture is further distorted with "lightweight containers" like Spring Framework, that often supplement the purpose of application servers in more simple manner and without the application server infrastructure. And since distribution aspect in applications is moving from distributed component towards service paradigm and SOA architecture, there is less and less space left for traditional application servers.
I know this is a very old question, but I googled my way here and found the answer provided not 100% satisfying, because as gcl1 mentioned - this way the footer is not really a footer to the screen - it's just an "add-on" to the list.
Bottom line - for others who may google their way here - I found the following suggestion here: Fixed and always visible footer below ListFragment
Try doing as follows, where the emphasis is on the button (or any footer element) listed first in the XML - and then the list is added as "layout_above":
<RelativeLayout>
<Button android:id="@+id/footer" android:layout_alignParentBottom="true"/>
<ListView android:id="@android:id/list" **android:layout_above**="@id/footer"> <!-- the list -->
</RelativeLayout>
You might want indexOf
if (code.indexOf("ST1") >= 0) { ... }
else if (code.indexOf("ST2") >= 0) { ... }
It checks if contains
is anywhere in the string
variable code
. This requires code
to be a string. If you want this solution to be case-insensitive you have to change the case to all the same with either String.toLowerCase()
or String.toUpperCase()
.
You could also work with a switch
statement like
switch (true) {
case (code.indexOf('ST1') >= 0):
document.write('code contains "ST1"');
break;
case (code.indexOf('ST2') >= 0):
document.write('code contains "ST2"');
break;
case (code.indexOf('ST3') >= 0):
document.write('code contains "ST3"');
break;
}?
Write your <span>
in <h1>
or <h2>
:
<h1> <span class="glyphicon glyphicon-th-list"></span></h1>
The +
operator should do the trick just fine. Keep something in mind though, if one of the columns is null or does not have any value, it will give you a NULL
result. Instead, combine +
with the function COALESCE
and you'll be set.
Here is an example:
SELECT COALESCE(column1,'') + COALESCE(column2,'') FROM table1.
For this example, if column1
is NULL
, then the results of column2
will show up, instead of a simple NULL
.
Hope this helps!
There is a much better way to do it
#include<cmath>
...
int size = trunc(log10(num)) + 1
....
works for int and decimal
StringTokenizer st = new StringTokenizer("1||1||Abdul-Jabbar||Karim||1996||1974",
"||");
while(st.hasMoreTokens()){
System.out.println(st.nextElement());
}
Answer will print
1 1 Abdul-Jabbar Karim 1996 1974
You're in replace mode. Press the Insert
key on your keyboard to switch back to insert mode. Many applications that handle text have this in common.
You can try this:
NSLog(@"%@", NSStringFromCGPoint(cgPoint));
There are a number of functions provided by UIKit that convert the various CG structs into NSString
s. The reason it doesn't work is because %@
signifies an object. A CGPoint
is a C struct (and so are CGRect
s and CGSize
s).
I was faced with this same issue, but rather than creating callbacks for a failed request, I simply returned an error with the json data object.
If possible, this seems like the easiest solution. Here's a sample of the Python code I used. (Using Flask, Flask's jsonify f and SQLAlchemy)
try:
snip = Snip.query.filter_by(user_id=current_user.get_id(), id=snip_id).first()
db.session.delete(snip)
db.session.commit()
return jsonify(success=True)
except Exception, e:
logging.debug(e)
return jsonify(error="Sorry, we couldn't delete that clip.")
Then you can check on Javascript like this;
$.getJSON('/ajax/deleteSnip/' + data_id,
function(data){
console.log(data);
if (data.success === true) {
console.log("successfully deleted snip");
$('.snippet[data-id="' + data_id + '"]').slideUp();
}
else {
//only shows if the data object was returned
}
});
Just use 0.0.0.0/0
.
host all all 0.0.0.0/0 md5
Make sure the listen_addresses
in postgresql.conf
(or ALTER SYSTEM SET
) allows incoming connections on all available IP interfaces.
listen_addresses = '*'
After the changes you have to reload the configuration. One way to do this is execute this SELECT
as a superuser.
SELECT pg_reload_conf();
Note: to change listen_addresses
, a reload is not enough, and you have to restart the server.
import java.nio.file.Files;
import java.nio.file.Path;
import java.nio.file.Paths;
import static java.nio.file.StandardCopyOption.*;
Path yourFile = Paths.get("path_to_your_file\text.txt");
Files.move(yourFile, yourFile.resolveSibling("text1.txt"));
To replace an existing file with the name "text1.txt":
Files.move(yourFile, yourFile.resolveSibling("text1.txt"),REPLACE_EXISTING);
This is covered in android docs http://developer.android.com/training/monitoring-device-state/connectivity-monitoring.html
Simplest way IMO is to include an ID and runat server tag on all your elements.
<div id="MYDIV" runat="server" />
Since it sounds like these are dynamically inserted controls, you might appreciate FindControl().
Not in bash (that I know of), but:
cp `ls | grep -v Music` /target_directory
I know this is not exactly what you were looking for, but it will solve your example.
I think you can't do that but atleast you can update it. In order to edit an existing row in a DataTable, you need to locate the DataRow you want to edit, and then assign the updated values to the desired columns.
Example,
DataSet1.Tables(0).Rows(4).Item(0) = "Updated Company Name"
DataSet1.Tables(0).Rows(4).Item(1) = "Seattle"
#include <iostream>
#include <stdio.h>
#include <dirent.h>
std::string current_working_directory()
{
char* cwd = _getcwd( 0, 0 ) ; // **** microsoft specific ****
std::string working_directory(cwd) ;
std::free(cwd) ;
return working_directory ;
}
int main(){
std::cout << "i am now in " << current_working_directory() << endl;
}
I failed to use GetModuleFileName correctly. I found this work very well. just tested on Windows, not yet try on Linux :)
This is the closest I could get without adding any custom CSS (this I'd already figured as of the time of asking the question; guess I've to stick with this):
And the markup in use:
<form class="navbar-form navbar-left" role="search">
<div class="form-group">
<input type="text" class="form-control" placeholder="Search">
</div>
<button type="submit" class="btn btn-default">
<span class="glyphicon glyphicon-search"></span>
</button>
</form>
PS: Of course, that can be fixed by adding a negative margin-left
(-4px) on the button, and removing the border-radius
on the sides input
and button
meet. But the whole point of this question is to get it to work without any custom CSS.
Most easy way: sort files with sort(1) and then use diff(1).
POJO: If the class can be executed with underlying JDK,without any other external third party libraries support then its called POJO
JavaBean: If class only contains attributes with accessors(setters and getters) those are called javabeans.Java beans generally will not contain any bussiness logic rather those are used for holding some data in it.
All Javabeans are POJOs but all POJO are not Javabeans
You can get the path via fp.name
. Example:
>>> f = open('foo/bar.txt')
>>> f.name
'foo/bar.txt'
You might need os.path.basename
if you want only the file name:
>>> import os
>>> f = open('foo/bar.txt')
>>> os.path.basename(f.name)
'bar.txt'
File object docs (for Python 2) here.
You can write '&' to add string and integer :
processDetails=objProcess.ProcessId & ":" & objProcess.name
message = msgbox(processDetails,16,"Details")
output will be:
5577:wscript.exe
Adding to @Vianney's Answer https://stackoverflow.com/a/44160941/6609678
We can import the Built-in URL module in node as follows
const { URL } = require('url');
Example:
Terminal $ node
> const { URL } = require('url');
undefined
> let url = new URL('', 'http://localhost:1989/v3/orders');
undefined
> url.href
'http://localhost:1989/v3/orders'
> let fetchAll=true, timePeriod = 30, b2b=false;
undefined
> url.href
'http://localhost:1989/v3/orders'
> url.searchParams.append('fetchAll', fetchAll);
undefined
> url.searchParams.append('timePeriod', timePeriod);
undefined
> url.searchParams.append('b2b', b2b);
undefined
> url.href
'http://localhost:1989/v3/orders?fetchAll=true&timePeriod=30&b2b=false'
> url.toString()
'http://localhost:1989/v3/orders?fetchAll=true&timePeriod=30&b2b=false'
Useful Links:
https://developer.mozilla.org/en-US/docs/Web/API/URL https://developer.mozilla.org/en/docs/Web/API/URLSearchParams
If you want to copy file not using absolute path, relative path in other words:
Don't forget to write backslash in the path AND NOT slash
Example:
copy children-folder\file.something .\other-children-folder
PS: absolute path can be retrieved using these wildcards called "batch parameters"
@echo off
echo %%~dp0 is "%~dp0"
echo %%0 is "%0"
echo %%~dpnx0 is "%~dpnx0"
echo %%~f1 is "%~f1"
echo %%~dp0%%~1 is "%~dp0%~1"
Check documentation here about copy: https://technet.microsoft.com/en-us/library/bb490886.aspx
And also here for batch parameters documentation: https://www.microsoft.com/resources/documentation/windows/xp/all/proddocs/en-us/percent.mspx?mfr=true
Change the project interpreter to ~/anaconda2/python/bin
by going to File -> Settings -> Project -> Project Interpreter
. Also update the run configuration to use the project default Python interpreter via Run -> Edit Configurations
. This makes PyCharm
use Anaconda
instead of the default Python interpreter under usr/bin/python27
.
Since PyYAML's yaml.load()
function parses YAML documents to native Python data structures, you can just access items by key or index. Using the example from the question you linked:
import yaml
with open('tree.yaml', 'r') as f:
doc = yaml.load(f)
To access branch1 text
you would use:
txt = doc["treeroot"]["branch1"]
print txt
"branch1 text"
because, in your YAML document, the value of the branch1
key is under the treeroot
key.
You could try using the system stored procedure sp_help_job. This returns information on the job, its steps, schedules and servers. For example
EXEC msdb.dbo.sp_help_job @Job_name = 'Your Job Name'
SQL Books Online should contain lots of information about the records it returns.
For returning information on multiple jobs, you could try querying the following system tables which hold the various bits of information on the job
Their names are fairly self-explanatory (apart from SysJobServers which hold information on when the job last run and the outcome).
Again, information on the fields can be found at MSDN. For example, check out the page for SysJobs
Well, you are using both frame.setSize()
and frame.pack()
.
You should use one of them at one time.
Using setSize()
you can give the size of frame you want but if you use pack()
, it will automatically change the size of the frames according to the size of components in it. It will not consider the size you have mentioned earlier.
Try removing frame.pack()
from your code or putting it before setting size and then run it.
The WPF equivalent would be the System.Windows.MessageBox
. It has a quite similar interface, but uses other enumerations for parameters and return value.
The listdlls tools from Systernals might do the job: http://technet.microsoft.com/en-us/sysinternals/bb896656.aspx
listdlls -v -d mylib.dll
I am not sure if I understand you correctly, does this help?
ps --ppid <pid of the parent>
Here is an implementation without using jQuery at all -
http://thezillion.wordpress.com/2012/09/27/javascript-draggable-2-no-jquery
Embed the JS file (http://zillionhost.xtreemhost.com/tzdragg/tzdragg.js) in your HTML code, and put the following code -
<script>
win.onload = function(){
tzdragg.drag('elem1, elem2, ..... elemn');
// ^ IDs of the draggable elements separated by a comma.
}
</script>
And the code is also easy to learn.
http://thezillion.wordpress.com/2012/08/29/javascript-draggable-no-jquery
As of pandas 0.17.0, DataFrame.sort()
is deprecated, and set to be removed in a future version of pandas. The way to sort a dataframe by its values is now is DataFrame.sort_values
As such, the answer to your question would now be
df.sort_values(['b', 'c'], ascending=[True, False], inplace=True)
I invite you to explore what Python 3.8 has to offer for the subject matter in form of Structural subtyping (static duck typing)
(PEP 544)
See the short description https://docs.python.org/3/library/typing.html#typing.Protocol
For the simple example here it goes like this:
from typing import Protocol
class MyShowProto(Protocol):
def show(self):
...
class MyClass:
def show(self):
print('Hello World!')
class MyOtherClass:
pass
def foo(o: MyShowProto):
return o.show()
foo(MyClass()) # ok
foo(MyOtherClass()) # fails
foo(MyOtherClass())
will fail static type checks:
$ mypy proto-experiment.py
proto-experiment.py:21: error: Argument 1 to "foo" has incompatible type "MyOtherClass"; expected "MyShowProto"
Found 1 error in 1 file (checked 1 source file)
In addition, you can specify the base class explicitly, for instance:
class MyOtherClass(MyShowProto):
but note that this makes methods of the base class actually available on the subclass, and thus the static checker will not report that a method definition is missing on the MyOtherClass
.
So in this case, in order to get a useful type-checking, all the methods that we want to be explicitly implemented should be decorated with @abstractmethod
:
from typing import Protocol
from abc import abstractmethod
class MyShowProto(Protocol):
@abstractmethod
def show(self): raise NotImplementedError
class MyOtherClass(MyShowProto):
pass
MyOtherClass() # error in type checker
Use swiftyJson swiftyJson
platform :ios, '8.0'
use_frameworks!
target 'MyApp' do
pod 'SwiftyJSON', '~> 4.0'
end
Usage
import SwiftyJSON
let json = JSON(jsonObject)
let id = json["Id"].intValue
let name = json["Name"].stringValue
let lat = json["Latitude"].stringValue
let long = json["Longitude"].stringValue
let address = json["Address"].stringValue
print(id)
print(name)
print(lat)
print(long)
print(address)
https://github.com/cognitom/paper-css seems to solve all my needs.
Front-end printing solution - previewable and live-reloadable!
I had this issue also and I simply found out that if you simply remove the "#" the issue goes off. Like this :
<a href="" class="disabled" ng-click="doSomething(object)">Do something</a>
There is exactly one reason why the following is preferred:
with open('filename.txt') as fp:
for line in fp:
print line
We are all spoiled by CPython's relatively deterministic reference-counting scheme for garbage collection. Other, hypothetical implementations of Python will not necessarily close the file "quickly enough" without the with
block if they use some other scheme to reclaim memory.
In such an implementation, you might get a "too many files open" error from the OS if your code opens files faster than the garbage collector calls finalizers on orphaned file handles. The usual workaround is to trigger the GC immediately, but this is a nasty hack and it has to be done by every function that could encounter the error, including those in libraries. What a nightmare.
Or you could just use the with
block.
(Stop reading now if are only interested in the objective aspects of the question.)
Why isn't that included in the iterator protocol for file objects?
This is a subjective question about API design, so I have a subjective answer in two parts.
On a gut level, this feels wrong, because it makes iterator protocol do two separate things—iterate over lines and close the file handle—and it's often a bad idea to make a simple-looking function do two actions. In this case, it feels especially bad because iterators relate in a quasi-functional, value-based way to the contents of a file, but managing file handles is a completely separate task. Squashing both, invisibly, into one action, is surprising to humans who read the code and makes it more difficult to reason about program behavior.
Other languages have essentially come to the same conclusion. Haskell briefly flirted with so-called "lazy IO" which allows you to iterate over a file and have it automatically closed when you get to the end of the stream, but it's almost universally discouraged to use lazy IO in Haskell these days, and Haskell users have mostly moved to more explicit resource management like Conduit which behaves more like the with
block in Python.
On a technical level, there are some things you may want to do with a file handle in Python which would not work as well if iteration closed the file handle. For example, suppose I need to iterate over the file twice:
with open('filename.txt') as fp:
for line in fp:
...
fp.seek(0)
for line in fp:
...
While this is a less common use case, consider the fact that I might have just added the three lines of code at the bottom to an existing code base which originally had the top three lines. If iteration closed the file, I wouldn't be able to do that. So keeping iteration and resource management separate makes it easier to compose chunks of code into a larger, working Python program.
Composability is one of the most important usability features of a language or API.
Pass by pointer is the only way you could pass "by reference" in C, so you still see it used quite a bit.
The NULL pointer is a handy convention for saying a parameter is unused or not valid, so use a pointer in that case.
References can't be updated once they're set, so use a pointer if you ever need to reassign it.
Prefer a reference in every case where there isn't a good reason not to. Make it const
if you can.
I think the easiest way to create pagination in ASP.NET MVC application is using PagedList library.
There is a complete example in following github repository. Hope it would help.
public class ProductController : Controller
{
public object Index(int? page)
{
var list = ItemDB.GetListOfItems();
var pageNumber = page ?? 1;
var onePageOfItem = list.ToPagedList(pageNumber, 25); // will only contain 25 items max because of the pageSize
ViewBag.onePageOfItem = onePageOfProducts;
return View();
}
}
Demo Link: http://ajaxpagination.azurewebsites.net/
Source Code: https://github.com/ungleng/SimpleAjaxPagedListAndSearchMVC5
You won't find the component if it hasn't been installed.
In Visual Studio 2019 go to:
Tools > Get Tools and Features > Select the Individual Components tab > Type wcf
in the search box and install it.
This installs the component, and you should be able to load it from the command prompt or other methods suggested in the answer.
if your column is varchar
use annotation length
@Column(length = 255)
or use another column type
@Column(columnDefinition="TEXT")
just select '0' as the value for the desired column
For python, you need to use
Class pg8000.types.Bytea (str) Bytea is a str-derived class that is mapped to a PostgreSQL byte array.
or
Pg8000.Binary (value) Construct an object holding binary data.
Inline elements:
Block elements:
Inline-block elements:
From W3Schools:
An inline element has no line break before or after it, and it tolerates HTML elements next to it.
A block element has some whitespace above and below it and does not tolerate any HTML elements next to it.
An inline-block element is placed as an inline element (on the same line as adjacent content), but it behaves as a block element.
When you visualize this, it looks like this:
The image is taken from this page, which also talks some more about this subject.
If you CAST
your data as a VARCHAR()
instead of explicitly CONVERT
ing your data you can simply
SELECT REPLACE(CAST(CreatedDate AS VARCHAR(20)),'Jan 1 1900 12:00AM','')
The CAST
will automatically return your Date then as Jun 18 2020 12:46PM
fix length strings formats which you can additionally SUBSTRING()
SELECT SUBSTRING(REPLACE(CAST(CreatedDate AS VARCHAR(20)),'Jan 1 1900 12:00AM',''),1,11)
Output
Jun 18 2020
Use a list instead and replace your foreach
loop with a for
loop:
@model IList<BlockedIPViewModel>
@using (Html.BeginForm())
{
@Html.AntiForgeryToken()
@for (var i = 0; i < Model.Count; i++)
{
<tr>
<td>
@Html.HiddenFor(x => x[i].IP)
@Html.CheckBoxFor(x => x[i].Checked)
</td>
<td>
@Html.DisplayFor(x => x[i].IP)
</td>
</tr>
}
<div>
<input type="submit" value="Unblock IPs" />
</div>
}
Alternatively you could use an editor template:
@model IEnumerable<BlockedIPViewModel>
@using (Html.BeginForm())
{
@Html.AntiForgeryToken()
@Html.EditorForModel()
<div>
<input type="submit" value="Unblock IPs" />
</div>
}
and then define the template ~/Views/Shared/EditorTemplates/BlockedIPViewModel.cshtml
which will automatically be rendered for each element of the collection:
@model BlockedIPViewModel
<tr>
<td>
@Html.HiddenFor(x => x.IP)
@Html.CheckBoxFor(x => x.Checked)
</td>
<td>
@Html.DisplayFor(x => x.IP)
</td>
</tr>
The reason you were getting null in your controller is because you didn't respect the naming convention for your input fields that the default model binder expects to successfully bind to a list. I invite you to read the following article
.
Once you have read it, look at the generated HTML (and more specifically the names of the input fields) with my example and yours. Then compare and you will understand why yours doesn't work.
Thanks to @Apps Tawale , Based on his answer, here's a bit of another (my) version,
To select last 5 records without an identity column,
select top 5 *,
RowNum = row_number() OVER (ORDER BY (SELECT 0))
from [dbo].[ViewEmployeeMaster]
ORDER BY RowNum desc
Nevertheless, it has an order by, but on RowNum :)
Note(1): The above query will reverse the order of what we get when we run the main select query.
So to maintain the order, we can slightly go like:
select *, RowNum2 = row_number() OVER (ORDER BY (SELECT 0))
from (
select top 5 *, RowNum = row_number() OVER (ORDER BY (SELECT 0))
from [dbo].[ViewEmployeeMaster]
ORDER BY RowNum desc
) as t1
order by RowNum2 desc
Note(2): Without an identity column, the query takes a bit of time in case of large data
Deleting the global npm-cache and/or running my cmd line as admin did not work for me. Also, as of npm version 5.x.x, it supposedly recovers from cache corruption by itself.
This did work:
1. Deleted the node_modules folder in my current project.
2. Deleted the package-lock.json in my current project
3. Installed the new package. In my case: npm install bootstrap@next --save
4. Ran npm install
for my current project.
Everything now works. In general, nuking node_modules and package-lock.json usually fix these "no apparent reason" bugs for me.
I just had the same problem again. But I noticed that everything was installed correctly even though it threw the error after I had followed the steps outlined above. So I could just run ng serve
(for Angular), and everything worked.
This sure is a weird error...
-webkit-transform
is no more needed
ms already support rotation ( -ms-transform: rotate(-10deg);
)
try this:
li a {
...
-webkit-transform: rotate(-10deg);
-moz-transform: rotate(-10deg);
-o-transform: rotate(-10deg);
-ms-transform: rotate(-10deg);
-sand-transform: rotate(10deg);
display: block;
position: fixed;
}
os.path.isfile("bob.txt") # Does bob.txt exist? Is it a file, or a directory?
os.path.isdir("bob")
You are missing the border width and the border style properties in the Border shorthand property :
.circle {
border: 2px solid red;
background-color: #FFFFFF;
height: 100px;
border-radius:50%;
width: 100px;
}
_x000D_
<div class="circle"></div>
_x000D_
Also, You can use percentages for the border-radius property so that the value isn't dependent of the circle width/height. That is why I used 50% for border-radius (more info on border-radius in pixels and percent).
Side note : In your example, you didn't specify the border-radius property without vendor prefixes whitch you propably don't need as only browsers before chrome 4 safari 4 and Firefox 3.6 use them (see canIuse).
var seconds = 0;
setInterval(function () {
seconds++;
}, 1000);
There you go, now you have a variable counting seconds elapsed. Since I don't know the context, you'll have to decide whether you want to attach that variable to an object or make it global.
Set interval is simply a function that takes a function as it's first parameter and a number of milliseconds to repeat the function as it's second parameter.
You could also solve this by saving and comparing times.
EDIT: This answer will provide very inconsistent results due to things such as the event loop and the way browsers may choose to pause or delay processing when a page is in a background tab. I strongly recommend using the accepted answer.
Here is the correct implementation using numpy (np.log()
is the natural logarithm)
import numpy as np
p = 100
r = 0.06 / 12
FV = 4000
n = np.log(1 + FV * r/ p) / np.log(1 + r)
print ("Number of periods = " + str(n))
Output:
Number of periods = 36.55539635919235
You can only return from inside a function and not from a loop.
It seems like your return should be outside the while loop, and your complete code should be inside a function.
def func():
N = int(input("enter a positive integer:"))
counter = 1
while (N > 0):
counter = counter * N
N -= 1
return counter # de-indent this 4 spaces to the left.
print func()
And if those codes are not inside a function, then you don't need a return
at all. Just print the value of counter
outside the while loop
.
I had a very similar error message as you, although listing a particular file:
$ make
make: execvp: ../HoughLineExtractor/houghlineextractor.hh: Permission denied
make: *** [../HoughLineAccumulator/houghlineaccumulator.o] Error 127
$ sudo make
make: execvp: ../HoughLineExtractor/houghlineextractor.hh: Permission denied
make: *** [../HoughLineAccumulator/houghlineaccumulator.o] Error 127
In my case, I forgot to add a trailing slash to indicate continuation of the line as shown:
${LINEDETECTOR_OBJECTS}:\
../HoughLineAccumulator/houghlineaccumulator.hh # <-- missing slash!!
../HoughLineExtractor/houghlineextractor.hh
Hope that helps someone else who lands here from a search engine.
One notable reason to avoid overusing the heap is for performance -- specifically involving the performance of the default memory management mechanism used by C++. While allocation can be quite quick in the trivial case, doing a lot of new
and delete
on objects of non-uniform size without strict order leads not only to memory fragmentation, but it also complicates the allocation algorithm and can absolutely destroy performance in certain cases.
That's the problem that memory pools where created to solve, allowing to to mitigate the inherent disadvantages of traditional heap implementations, while still allowing you to use the heap as necessary.
Better still, though, to avoid the problem altogether. If you can put it on the stack, then do so.
var el = document.querySelector("yourElement");
window.scroll({top: el.offsetTop, behavior: 'smooth'});
You can use dangerouslySetInnerHTML, e.g.
render: function() {
return (
<div className="content" dangerouslySetInnerHTML={{__html: thisIsMyCopy}}></div>
);
}
use the following rule for validating radio button group selection
myRadioGroupName : {required :true}
myRadioGroupName is the value you have given to name attribute
First of all, avoid scanf()
. Using it is not worth the pain.
See: Why does everyone say not to use scanf? What should I use instead?
Using a whitespace character in scanf()
would ignore any number of whitespace characters left in the input stream, what if you need to read more inputs? Consider:
#include <stdio.h>
int main(void)
{
char ch1, ch2;
scanf("%c", &ch1); /* Leaves the newline in the input */
scanf(" %c", &ch2); /* The leading whitespace ensures it's the
previous newline is ignored */
printf("ch1: %c, ch2: %c\n", ch1, ch2);
/* All good so far */
char ch3;
scanf("%c", &ch3); /* Doesn't read input due to the same problem */
printf("ch3: %c\n", ch3);
return 0;
}
While the 3rd scanf() can be fixed in the same way using a leading whitespace, it's not always going to that simple as above.
Another major problem is, scanf()
will not discard any input in the input stream if it doesn't match the format. For example, if you input abc
for an int
such as: scanf("%d", &int_var);
then abc
will have to read and discarded. Consider:
#include <stdio.h>
int main(void)
{
int i;
while(1) {
if (scanf("%d", &i) != 1) { /* Input "abc" */
printf("Invalid input. Try again\n");
} else {
break;
}
}
printf("Int read: %d\n", i);
return 0;
}
Another common problem is mixing scanf()
and fgets()
. Consider:
#include <stdio.h>
int main(void)
{
int age;
char name[256];
printf("Input your age:");
scanf("%d", &age); /* Input 10 */
printf("Input your full name [firstname lastname]");
fgets(name, sizeof name, stdin); /* Doesn't read! */
return 0;
}
The call to fgets()
doesn't wait for input because the newline left by the previous scanf() call is read and fgets() terminates input reading when it encounters a newline.
There are many other similar problems associated with scanf()
. That's why it's generally recommended to avoid it.
So, what's the alternative? Use fgets()
function instead in the following fashion to read a single character:
#include <stdio.h>
int main(void)
{
char line[256];
char ch;
if (fgets(line, sizeof line, stdin) == NULL) {
printf("Input error.\n");
exit(1);
}
ch = line[0];
printf("Character read: %c\n", ch);
return 0;
}
One detail to be aware of when using fgets()
will read in the newline character if there's enough room in the inut buffer. If it's not desirable then you can remove it:
char line[256];
if (fgets(line, sizeof line, stdin) == NULL) {
printf("Input error.\n");
exit(1);
}
line[strcpsn(line, "\n")] = 0; /* removes the trailing newline, if present */
Found this post and I realize it's a bit old, but I think I might have an answer. This handles the click on the cross, backspacing and hitting the ESC key. I am sure it could probably be written better - I'm still relatively new to javascript. Here is what I ended up doing - I am using jQuery (v1.6.4):
var searchVal = ""; //create a global var to capture the value in the search box, for comparison later
$(document).ready(function() {
$("input[type=search]").keyup(function(e) {
if (e.which == 27) { // catch ESC key and clear input
$(this).val('');
}
if (($(this).val() === "" && searchVal != "") || e.which == 27) {
// do something
searchVal = "";
}
searchVal = $(this).val();
});
$("input[type=search]").click(function() {
if ($(this).val() != filterVal) {
// do something
searchVal = "";
}
});
});
Setting the underlying socket ReceiveTimeout
property did the trick. You can access it like this: yourTcpClient.Client.ReceiveTimeout
. You can read the docs for more information.
Now the code will only "sleep" as long as needed for some data to arrive in the socket, or it will raise an exception if no data arrives, at the beginning of a read operation, for more than 20ms. I can tweak this timeout if needed. Now I'm not paying the 20ms price in every iteration, I'm only paying it at the last read operation. Since I have the content-length of the message in the first bytes read from the server I can use it to tweak it even more and not try to read if all expected data has been already received.
I find using ReceiveTimeout much easier than implementing asynchronous read... Here is the working code:
string SendCmd(string cmd, string ip, int port)
{
var client = new TcpClient(ip, port);
var data = Encoding.GetEncoding(1252).GetBytes(cmd);
var stm = client.GetStream();
stm.Write(data, 0, data.Length);
byte[] resp = new byte[2048];
var memStream = new MemoryStream();
var bytes = 0;
client.Client.ReceiveTimeout = 20;
do
{
try
{
bytes = stm.Read(resp, 0, resp.Length);
memStream.Write(resp, 0, bytes);
}
catch (IOException ex)
{
// if the ReceiveTimeout is reached an IOException will be raised...
// with an InnerException of type SocketException and ErrorCode 10060
var socketExept = ex.InnerException as SocketException;
if (socketExept == null || socketExept.ErrorCode != 10060)
// if it's not the "expected" exception, let's not hide the error
throw ex;
// if it is the receive timeout, then reading ended
bytes = 0;
}
} while (bytes > 0);
return Encoding.GetEncoding(1252).GetString(memStream.ToArray());
}
I am the author of the source code at the specified link. While the intention of the source code license is not clear (it will be later today), the code is in fact open and free for use in your free or commercial applications with no strings attached.
Hi above solutions didn't work for me. The other way of running a single test is
mocha test/cartcheckout/checkout.js -g 'Test Name Goes here'
This helps to run a test case from a single file and with specific name.
All javascript methods are applicable with angularjs because angularjs itself is a javascript framework so you can use indexOf() inside angular directives
<li ng-repeat="select in Items">
<foo ng-repeat="newin select.values">
<span ng-if="newin.label.indexOf(x) !== -1">{{newin.label}}</span></foo>
</li>
//where x is your character to be found
The important part is this:
Cannot find class [com.rakuten.points.persistence.manager.MemberPointSummaryDAOImpl] for bean with name 'MemberPointSummaryDAOImpl' defined in ServletContext resource [/WEB-INF/context/PersistenceManagerContext.xml];
due to:
nested exception is java.lang.ClassNotFoundException: com.rakuten.points.persistence.manager.MemberPointSummaryDAOImpl
According to this log, Spring could not find your MemberPointSummaryDAOImpl
class.
In your link function, do this:
// link function
function (scope, element, attrs) {
var myEl = angular.element(element[0].querySelector('.list-scrollable'));
}
Also, in your link function, don't name your scope
variable using a $
. That is an angular convention that is specific to built in angular services, and is not something that you want to use for your own variables.
Another neat thing to do is to use android:minHeight
along with android:layout_height="wrap_content"
. This way you can set the size of the edit when it's empty, and when the user inputs stuff, it stretches according to how much the user inputs, including multiple lines.
I am using searchform.php
and search.php
files as already mentioned, but here I provide the actual code.
Creating a Search Page codex
page helps here and #Creating_a_Search_Page_Template
shows the search query.
In my case I pass the $search_query
arguments to the WP_Query Class
(which can determine if is search query!). I then run The Loop to display the post information I want to, which in my case is the the_permalink and the_title
.
Search box form:
<form class="search" method="get" action="<?php echo home_url(); ?>" role="search">
<input type="search" class="search-field" placeholder="<?php echo esc_attr_x( 'Search …', 'placeholder' ) ?>" value="<?php echo get_search_query() ?>" name="s" title="<?php echo esc_attr_x( 'Search for:', 'label' ) ?>" />
<button type="submit" role="button" class="btn btn-default right"/><span class="glyphicon glyphicon-search white"></span></button>
</form>
search.php
template file:
<?php
global $query_string;
$query_args = explode("&", $query_string);
$search_query = array();
foreach($query_args as $key => $string) {
$query_split = explode("=", $string);
$search_query[$query_split[0]] = urldecode($query_split[1]);
} // foreach
$the_query = new WP_Query($search_query);
if ( $the_query->have_posts() ) :
?>
<!-- the loop -->
<ul>
<?php while ( $the_query->have_posts() ) : $the_query->the_post(); ?>
<li>
<a href="<?php the_permalink(); ?>"><?php the_title(); ?></a>
</li>
<?php endwhile; ?>
</ul>
<!-- end of the loop -->
<?php wp_reset_postdata(); ?>
<?php else : ?>
<p><?php _e( 'Sorry, no posts matched your criteria.' ); ?></p>
<?php endif; ?>
Try putting the height into one of the cells, like this:
<table class="tableContainer" cellspacing="10px">
<tr>
<td style="height:15px;">NHS Number</td>
<td> </td>
Note however, that you won't be able to make the cell smaller than the content requires it to be. In that case you would have to make the text smaller first.
In my Case Everything was right
1) Web Config was configured properly 2) Route prefix and Route attributes were proper
Still i was getting the error. In my Case "Route" attribute (by pressing F12) was point to System.Web.MVc but not System.Web.Http which caused the issue.
Although there is nothing wrong with the other solutions presented, you could simplify and greatly escalate your solutions by using python's excellent library pandas.
Pandas is a library for handling data in Python, preferred by many Data Scientists.
Pandas has a simplified CSV interface to read and parse files, that can be used to return a list of dictionaries, each containing a single line of the file. The keys will be the column names, and the values will be the ones in each cell.
In your case:
import pandas
def create_dictionary(filename):
my_data = pandas.DataFrame.from_csv(filename, sep='\t', index_col=False)
# Here you can delete the dataframe columns you don't want!
del my_data['B']
del my_data['D']
# ...
# Now you transform the DataFrame to a list of dictionaries
list_of_dicts = [item for item in my_data.T.to_dict().values()]
return list_of_dicts
# Usage:
x = create_dictionary("myfile.csv")
Here is another simple approach, I used;
inputChange(event: KeyboardEvent) {
const target = event.target as HTMLTextAreaElement;
var activeInput = target.id;
}
An experiment to compare ElasticSearch and Solr
Another alternative is to use a markdown editor like StackEdit. It converts html (or text) into markdown in a WYSIWYG editor. You can create indents, titles, lists in the editor, and it will show you the corresponding text in markdown format. You can then save, publish, share, or download the file. You can access it on their website - no downloads required!
Using scanf
removing any blank spaces before the string is typed and limiting the amount of characters to be read:
#define SIZE 100
....
char str[SIZE];
scanf(" %99[^\n]", str);
/* Or even you can do it like this */
scanf(" %99[a-zA-Z0-9 ]", str);
If you do not limit the amount of characters to be read with scanf
it can be as dangerous as gets
You could use this function which is doing the same as the eval()
function, but in a simple manner, using a function.
def numeric(equation):
if '+' in equation:
y = equation.split('+')
x = int(y[0])+int(y[1])
elif '-' in equation:
y = equation.split('-')
x = int(y[0])-int(y[1])
return x
If you open the root project folder in Android Studio, you wont see the options suggested in other answers in this page.
Instead of the root folder I opened the packages/native/android
folder. Then only I could see the options to build signed APK.
In list comprehension the loop variable i becomes global. After the iteration in the for loop it is a reference to the last element in your list.
If you want all matches then assign the list to a variable:
filtered = [ i for i in my_list if i=='two']
If you want only the first match you could use a function generator
try:
m = next( i for i in my_list if i=='two' )
except StopIteration:
m = None
This can be a good option if you want python completion as well as other languages. https://github.com/Valloric/YouCompleteMe
The python completion is jedi based same as jedi-vim.
and
has lower precedence, mostly we use it as a control-flow modifier such as if
:
next if widget = widgets.pop
becomes
widget = widgets.pop and next
For or
:
raise "Not ready!" unless ready_to_rock?
becomes
ready_to_rock? or raise "Not ready!"
I prefer to use if
but not and
, because if
is more intelligible, so I just ignore and
and or
.
Refer to "Using “and” and “or” in Ruby" for more information.
1. Create the database
CREATE DATABASE db_name;
2. Create the username for the database db_name
GRANT ALL PRIVILEGES ON db_name.* TO 'username'@'localhost' IDENTIFIED BY 'password';
3. Use the database
USE db_name;
4. Finally you are in database db_name and then execute the commands like create , select and insert operations.
dplyr
solution:Idea:
Code:
DF = data.frame(V1=c(2,8,1),V2=c(7,3,5),V3=c(9,6,4))
DF %>%
rownames_to_column() %>%
gather(column, value, -rowname) %>%
group_by(rowname) %>%
filter(rank(-value) == 1)
Result:
# A tibble: 3 x 3
# Groups: rowname [3]
rowname column value
<chr> <chr> <dbl>
1 2 V1 8
2 3 V2 5
3 1 V3 9
This approach can be easily extended to get the top n
columns.
Example for n=2
:
DF %>%
rownames_to_column() %>%
gather(column, value, -rowname) %>%
group_by(rowname) %>%
mutate(rk = rank(-value)) %>%
filter(rk <= 2) %>%
arrange(rowname, rk)
Result:
# A tibble: 6 x 4
# Groups: rowname [3]
rowname column value rk
<chr> <chr> <dbl> <dbl>
1 1 V3 9 1
2 1 V2 7 2
3 2 V1 8 1
4 2 V3 6 2
5 3 V2 5 1
6 3 V3 4 2
i have been searching for ages and finally i put everything together to find my solution. Folks say, you cannot fade-in/-out the background-image- id of the html-background. Thats definitely wrong as you can figure out by implementing the below mentioned demo
CSS:
html, body
height: 100%; /* ges Hoehe der Seite -> weitere Hoehenangaben werden relativ hierzu ausgewertet */
overflow: hidden; /* hide scrollbars */
opacity: 1.0;
-webkit-transition: background 1.5s linear;
-moz-transition: background 1.5s linear;
-o-transition: background 1.5s linear;
-ms-transition: background 1.5s linear;
transition: background 1.5s linear;
Changing body's background-image can now easily be done using JavaScript:
switch (dummy)
case 1:
$(document.body).css({"background-image": "url("+URL_of_pic_One+")"});
waitAWhile();
case 2:
$(document.body).css({"background-image": "url("+URL_of_pic_Two+")"});
waitAWhile();
Open up the Windows task manager, kill the process named adb.exe, and re-launch your program.
Go to the Eclipse base folder ? open eclipse.ini ? you will find the below line at line no 4:
plugins/org.eclipse.equinox.launcher.win32.win32.x86_64_1.1.200.v20150204-1316 plugins/org.eclipse.equinox.launcher.win32.win32.x86_1.1.200.v20120913-144807
As you can see, line 1 is of 64-bit Eclipse. It contains x86_64 and line 2 is of 32-bit Eclipse. It contains x_86.
For 32-bit Eclipse only x86 will be present and for 64-bit Eclipse x86_64 will be present.
You didn't add the changes. Either specifically add them via
git add filename1 filename2
or add all changes (from root path of the project)
git add .
or use the shorthand -a
while commiting:
git commit -a -m "message".
if what you need is the width and height of the frame in the circle, why not pass the DrawFrame width and height into the DrawCircle constructor:
public DrawCircle(int w, int h){
this.w = w;
this.h = h;
diBig = 300;
diSmall = 10;
maxRad = (diBig/2) - diSmall;
xSq = 50;
ySq = 50;
xPoint = 200;
yPoint = 200;
}
you could also add a couple new methods to DrawCircle:
public void setWidth(int w)
this.w = w;
public void setHeight(int h)
this.h = h;
or even:
public void setDimension(Dimension d) {
w=d.width;
h=d.height;
}
if you go down this route, you will need to update DrawFrame to make a local var of the DrawCircle on which to call these methods.
edit:
when changing the DrawCircle constructor as described at the top of my post, dont forget to add the width and height to the call to the constructor in DrawFrame:
public class DrawFrame extends JFrame {
public DrawFrame() {
int width = 400;
int height = 400;
setTitle("Frame");
setSize(width, height);
addWindowListener(new WindowAdapter()
{
public void windowClosing(WindowEvent e)
{
System.exit(0);
}
});
Container contentPane = getContentPane();
//pass in the width and height to the DrawCircle contstructor
contentPane.add(new DrawCircle(width, height));
}
}
That's the default margin/padding of the body
element.
Some browsers have a default margin, some a default padding, and both are applied as a padding in the body element.
Add this to your CSS:
body { margin: 0; padding: 0; }
Having been bitten by this, I have a habit of including locally defined variables in the innermost scope which I use to transfer to any closure. In your example:
foreach (var s in strings)
query = query.Where(i => i.Prop == s); // access to modified closure
I do:
foreach (var s in strings)
{
string search = s;
query = query.Where(i => i.Prop == search); // New definition ensures unique per iteration.
}
Once you have that habit, you can avoid it in the very rare case you actually intended to bind to the outer scopes. To be honest, I don't think I have ever done so.
To convert numpy.datetime64
to datetime object that represents time in UTC on numpy-1.8
:
>>> from datetime import datetime
>>> import numpy as np
>>> dt = datetime.utcnow()
>>> dt
datetime.datetime(2012, 12, 4, 19, 51, 25, 362455)
>>> dt64 = np.datetime64(dt)
>>> ts = (dt64 - np.datetime64('1970-01-01T00:00:00Z')) / np.timedelta64(1, 's')
>>> ts
1354650685.3624549
>>> datetime.utcfromtimestamp(ts)
datetime.datetime(2012, 12, 4, 19, 51, 25, 362455)
>>> np.__version__
'1.8.0.dev-7b75899'
The above example assumes that a naive datetime object is interpreted by np.datetime64
as time in UTC.
To convert datetime to np.datetime64 and back (numpy-1.6
):
>>> np.datetime64(datetime.utcnow()).astype(datetime)
datetime.datetime(2012, 12, 4, 13, 34, 52, 827542)
It works both on a single np.datetime64 object and a numpy array of np.datetime64.
Think of np.datetime64 the same way you would about np.int8, np.int16, etc and apply the same methods to convert beetween Python objects such as int, datetime and corresponding numpy objects.
Your "nasty example" works correctly:
>>> from datetime import datetime
>>> import numpy
>>> numpy.datetime64('2002-06-28T01:00:00.000000000+0100').astype(datetime)
datetime.datetime(2002, 6, 28, 0, 0)
>>> numpy.__version__
'1.6.2' # current version available via pip install numpy
I can reproduce the long
value on numpy-1.8.0
installed as:
pip install git+https://github.com/numpy/numpy.git#egg=numpy-dev
The same example:
>>> from datetime import datetime
>>> import numpy
>>> numpy.datetime64('2002-06-28T01:00:00.000000000+0100').astype(datetime)
1025222400000000000L
>>> numpy.__version__
'1.8.0.dev-7b75899'
It returns long
because for numpy.datetime64
type .astype(datetime)
is equivalent to .astype(object)
that returns Python integer (long
) on numpy-1.8
.
To get datetime object you could:
>>> dt64.dtype
dtype('<M8[ns]')
>>> ns = 1e-9 # number of seconds in a nanosecond
>>> datetime.utcfromtimestamp(dt64.astype(int) * ns)
datetime.datetime(2002, 6, 28, 0, 0)
To get datetime64 that uses seconds directly:
>>> dt64 = numpy.datetime64('2002-06-28T01:00:00.000000000+0100', 's')
>>> dt64.dtype
dtype('<M8[s]')
>>> datetime.utcfromtimestamp(dt64.astype(int))
datetime.datetime(2002, 6, 28, 0, 0)
The numpy docs say that the datetime API is experimental and may change in future numpy versions.
And even simpler using IN:
SELECT ads.*, location.county
FROM ads
LEFT JOIN location ON location.county = ads.county_id
WHERE ads.published = 1
AND ads.type = 13
AND ads.county_id IN (2,5,7,9)
I had the same problem. Coudn't resolve google.com. There was a bug somewhere in php fpm, which i am using. Restarting php-fpm solved it for me.
I have this problem whe I have too much maven projects open at once. What I tend to do is:
This enables a functioning rebuild in 99% off the cases in my workspace.
Ran in to this problem a while ago. Website couldn't access video file on local PC due to security settings (understandable really) ONLY way I could get around it was to run a webserver on the local PC (server2Go) and all references to the video file from the web were to the localhost/video.mp4
<div id="videoDiv">
<video id="video" src="http://127.0.0.1:4001/videos/<?php $videoFileName?>" width="70%" controls>
</div>
<!--End videoDiv-->
Not an ideal solution but worked for me.
Just put yourRelativeLayout
inside ScrollView
<ScrollView xmlns:android="http://schemas.android.com/apk/res/android"
android:id="@+id/ScrollView01"
android:layout_width="fill_parent"
android:layout_height="fill_parent">
------- here RelativeLayout ------
</ScrollView>
SELECT @var = col1,
@var2 = col2
FROM Table
Here is some interesting information about SET / SELECT
- SET is the ANSI standard for variable assignment, SELECT is not.
- SET can only assign one variable at a time, SELECT can make multiple assignments at once.
- If assigning from a query, SET can only assign a scalar value. If the query returns multiple values/rows then SET will raise an error. SELECT will assign one of the values to the variable and hide the fact that multiple values were returned (so you'd likely never know why something was going wrong elsewhere - have fun troubleshooting that one)
- When assigning from a query if there is no value returned then SET will assign NULL, where SELECT will not make the assignment at all (so the variable will not be changed from it's previous value)
- As far as speed differences - there are no direct differences between SET and SELECT. However SELECT's ability to make multiple assignments in one shot does give it a slight speed advantage over SET.
You can try this also, if you don't want to deal with the enumerator:
object ItemToDelete = null;
foreach (object lsbItem in listbox1.Items)
{
if (lsbItem.ToString() == "-ITEM-")
{
ItemToDelete = lsbItem;
}
}
if (ItemToDelete != null)
listbox1.Items.Remove(ItemToDelete);
I got a bad result with git push origin branch1:branch2
command:
In my case, branch2
is deleted and branch1
has been updated with some new changes.
Hence, if you want only the changes push on the branch2
from the branch1
, try procedures below:
branch1
: git add .
branch1
: git commit -m 'comments'
On branch1
: git push origin branch1
On branch2
: git pull origin branch1
On branch1
: revert to the previous commit.
You should pass @item.email
in quotes then it will be treated as string argument
<td><a href ="#" onclick="Getinfo('@item.email');" >6/16/2016 2:02:29 AM</a> </td>
Otherwise, it is treated as variable thus error is generated.
Here is a query, you can run it in SQL Developer (or SQL*Plus):
SELECT DS.TABLESPACE_NAME, SEGMENT_NAME, ROUND(SUM(DS.BYTES) / (1024 * 1024)) AS MB
FROM DBA_SEGMENTS DS
WHERE SEGMENT_NAME IN (SELECT TABLE_NAME FROM DBA_TABLES)
GROUP BY DS.TABLESPACE_NAME,
SEGMENT_NAME;
Wow! Thank you for that answer! I added some features to it to create a "datatable to json" converter that I share with you.
Public Shared Sub dt2json(ByVal _dt As DataTable, ByVal _sb As StringBuilder)
Dim t As System.Type
Dim oList(_dt.Rows.Count - 1) As Object
Dim jss As New JavaScriptSerializer()
Dim i As Integer = 0
t = CompileResultType(_dt)
For Each dr As DataRow In _dt.Rows
Dim o As Object = Activator.CreateInstance(t)
For Each col As DataColumn In _dt.Columns
setvalue(o, col.ColumnName, dr.Item(col.ColumnName))
Next
oList(i) = o
i += 1
Next
jss = New JavaScriptSerializer()
jss.Serialize(oList, _sb)
End Sub
And in "compileresulttype" sub, I changed that:
For Each column As DataColumn In _dt.Columns
CreateProperty(tb, column.ColumnName, column.DataType)
Next
Private Shared Sub setvalue(ByVal _obj As Object, ByVal _propName As String, ByVal _propValue As Object)
Dim pi As PropertyInfo
pi = _obj.GetType.GetProperty(_propName)
If pi IsNot Nothing AndAlso pi.CanWrite Then
If _propValue IsNot DBNull.Value Then
pi.SetValue(_obj, _propValue, Nothing)
Else
Select Case pi.PropertyType.ToString
Case "System.String"
pi.SetValue(_obj, String.Empty, Nothing)
Case Else
'let the serialiser use javascript "null" value.
End Select
End If
End If
End Sub
String interpolation is a nice way to pass in a formatted string.
values = ', '.join('$%s' % v for v in value_list)
You don't need to configure anything. Just make sure that the requests map to your PHP file and use requests with path info. For example, if you have in the root a file named handler.php
with this content:
<?php
var_dump($_SERVER['REQUEST_METHOD']);
var_dump($_SERVER['REQUEST_URI']);
var_dump($_SERVER['PATH_INFO']);
if (($stream = fopen('php://input', "r")) !== FALSE)
var_dump(stream_get_contents($stream));
The following HTTP request would work:
Established connection with 127.0.0.1 on port 81
PUT /handler.php/bla/foo HTTP/1.1
Host: localhost:81
Content-length: 5
boo
HTTP/1.1 200 OK
Date: Sat, 29 May 2010 16:00:20 GMT
Server: Apache/2.2.13 (Win32) PHP/5.3.0
X-Powered-By: PHP/5.3.0
Content-Length: 89
Content-Type: text/html
string(3) "PUT"
string(20) "/handler.php/bla/foo"
string(8) "/bla/foo"
string(5) "boo
"
Connection closed remotely.
You can hide the "php" extension with MultiViews or you can make URLs completely logical with mod_rewrite.
See also the documentation for the AcceptPathInfo directive and this question on how to make PHP not parse POST data when enctype is multipart/form-data
.
The normal Ruby way to do this is to use a block.
So it would be something like:
def weightedknn( data, vec1, k = 5 )
foo
weight = yield( dist )
foo
end
And used like:
weightenknn( data, vec1 ) { |dist| gaussian( dist ) }
This pattern is used extensively in Ruby.
IMHO, there is not much difference in case of web application if you look at it from the angle of responsibility assignment. However, keep the clarity in the layer. Keep anything purely for the presentation purpose in the presentation layer, like the control and code specific to the web controls. Just keep your entities in the business layer and all features (like add, edit, delete) etc in the business layer. However rendering them onto the browser to be handled in the presentation layer. For .Net, the ASP.NET MVC pattern is very good in terms of keeping the layers separated. Look into the MVC pattern.
Working Demo fiddle here Demo
Changed your validation function to this
function isDate(txtDate)
{
return txtDate.match(/^d\d?\/\d\d?\/\d\d\d\d$/);
}
The solution using flexbox without justify-content: space-between
.
<div class="title">
<span>Cumulative performance</span>
<span>20/02/2011</span>
</div>
.title {
display: flex;
}
span:first-of-type {
flex: 1;
}
When we use flex:1
on the first <span>
, it takes up the entire remaining space and moves the second <span>
to the right. The Fiddle with this solution: https://jsfiddle.net/2k1vryn7/
Here https://jsfiddle.net/7wvx2uLp/3/ you can see the difference between two flexbox approaches: flexbox with justify-content: space-between
and flexbox with flex:1
on the first <span>
.
it's valid but like UpTheCreek said 'There are some downsides to each approach'
if you're calling ajax through an tag leave the href="" like this will keep the page reloading and the ajax code will never be called ...
just got this thought would be good to share
This is just my personal opinion and folks from web API team can probably articulate it better but here is my 2c.
First of all, I think it is not a question of one over another. You can use them both depending on what you want to do in your action method but in order to understand the real power of IHttpActionResult
, you will probably need to step outside those convenient helper methods of ApiController
such as Ok
, NotFound
, etc.
Basically, I think a class implementing IHttpActionResult
as a factory of HttpResponseMessage
. With that mind set, it now becomes an object that need to be returned and a factory that produces it. In general programming sense, you can create the object yourself in certain cases and in certain cases, you need a factory to do that. Same here.
If you want to return a response which needs to be constructed through a complex logic, say lots of response headers, etc, you can abstract all those logic into an action result class implementing IHttpActionResult
and use it in multiple action methods to return response.
Another advantage of using IHttpActionResult
as return type is that it makes ASP.NET Web API action method similar to MVC. You can return any action result without getting caught in media formatters.
Of course, as noted by Darrel, you can chain action results and create a powerful micro-pipeline similar to message handlers themselves in the API pipeline. This you will need depending on the complexity of your action method.
Long story short - it is not IHttpActionResult
versus HttpResponseMessage
. Basically, it is how you want to create the response. Do it yourself or through a factory.
Just escape the dashes to prevent them from being interpreted (I don't think underscore needs escaping, but it can't hurt). You don't say which regex you are using.
([A-Za-z0-9\-\_]+)
This seems ok....
var b = list[y];
list[y] = list[x];
list[x] = b;
Howerver using
var b = list[y];
means a b variable is going to be to be present for the rest of the scope. This can potentially lead to a memory leak. Unlikely, but still better to avoid.
Maybe a good idea to put this into Array.prototype.swap
Array.prototype.swap = function (x,y) {
var b = this[x];
this[x] = this[y];
this[y] = b;
return this;
}
which can be called like:
list.swap( x, y )
This is a clean approach to both avoiding memory leaks and DRY.
//package.json
"scripts": {
"postbuildNamingScript": "@powershell -NoProfile -ExecutionPolicy Unrestricted -Command ./powerShellPostBuildScript.ps1",
// powerShellPostBuildScript.ps1
move build/static/js build/new-folder-name
(Get-Content build/index.html).replace('static/js', 'new-folder-name') | Set-Content
build/index.html
"Finished Running BuildScript"
Running npm run postbuildNamingScript
in powershell will move the JS files to build/new-folder-name
and point to the new location from index.html
.
All the solutions here failed to work on my VS2013, however I put the #define _CRT_SECURE_NO_WARNINGS
in the stdafx.h just before the #pragma once
and all warnings were suppressed. Note: I only code for prototyping purposes to support my research so please make sure you understand the implications of this method when writing your code.
Hope this helps
Use Services
This will start PostgresSQL servers as normal.