function useOnceCall(cb, condition = true) {
const isCalledRef = React.useRef(false);
React.useEffect(() => {
if (condition && !isCalledRef.current) {
isCalledRef.current = true;
cb();
}
}, [cb, condition]);
}
and use it.
useOnceCall(()=>{
console.log('called');
})
or
useOnceCall(()=>{
console.log('isLoading');
},isLoading);
Tested xcode 8 stable version ; Need to use var request
variable with URLRequest()
With thats you can easily fix that (bug)
var request = URLRequest(url:myUrl!)
And
let task = URLSession.shared().dataTask(with: request as URLRequest) { }
Worked fine ! Thank you guys, i think help many people. !
You have your storyboard set up to expect an outlet called tableView
but the actual outlet name is myTableView
.
If you delete the connection in the storyboard and reconnect to the right variable name, it should fix the problem.
You can use the --extra-vars
option. See the docs
Use this:
tableView.rowHeight = UITableViewAutomaticDimension
tableView.estimatedRowHeight = 300
and don't use: heightForRowAtIndexPath
delegate function
Also, in the storyboard don't set the height of the label that contains a large amount of data. Give it top, bottom, leading, trailing
constraints.
Just drag a cell (as you did for TableViewController) and add in to it just by releasing the cell on TableViewController. Click on the cell and.Go to its attributes inspector and set its identifier as "Cell".Hope it works.
Don't forget you want Identifier on the Attributes Inspector.
(NOT the "Restoration ID" on the "Identity Inspector" !)
I got the error by having multiple tables on the page and trying to initialize them all at once like this:
$('table').DataTable();
After a lot of trial and error, I initialized them separately and the error went away:
$("#table1-id").DataTable();
$("#table2-id").DataTable();
You can try this.
func convertToJSONString(value: AnyObject) -> String? {
if JSONSerialization.isValidJSONObject(value) {
do{
let data = try JSONSerialization.data(withJSONObject: value, options: [])
if let string = NSString(data: data, encoding: String.Encoding.utf8.rawValue) {
return string as String
}
}catch{
}
}
return nil
}
I Created this function:
onAddListItem: function () {
var Modal = ReactBootstrap.Modal;
React.render((
<Modal title='Modal title' onRequestHide={this.hideListItem}>
<ul class="list-group">
<li class="list-group-item">Cras justo odio</li>
<li class="list-group-item">Dapibus ac facilisis in</li>
<li class="list-group-item">Morbi leo risus</li>
<li class="list-group-item">Porta ac consectetur ac</li>
<li class="list-group-item">Vestibulum at eros</li>
</ul>
</Modal>
), document.querySelector('#modal-wrapper'));
}
And then used it on my Button trigger.
To 'hide' the Modal:
hideListItem: function () {
React.unmountComponentAtNode(document.querySelector('#modal-wrapper'));
},
I followed the steps mentioned in this SO and everything is fine except when my Collection View has less data (text) to make it wide enough. Checking the documentation in systemLyaoutSizeFittingSize
, I have this solution so my cell take up the width as I requested:
- (CGSize)calculateSizeForSizingCell:(UICollectionViewCell *)sizingCell width:(CGFloat)width {
CGRect frame = sizingCell.frame;
frame.size.width = width;
sizingCell.frame = frame;
[sizingCell setNeedsLayout];
[sizingCell layoutIfNeeded];
CGSize size = [sizingCell systemLayoutSizeFittingSize:UILayoutFittingCompressedSize
withHorizontalFittingPriority:UILayoutPriorityRequired
verticalFittingPriority:UILayoutPriorityFittingSizeLevel];
return size;
}
Hope this would help someone.
- (CGSize)systemLayoutSizeFittingSize:(CGSize)targetSize NS_AVAILABLE_IOS(6_0);
Apple doc:
Equivalent to sending -systemLayoutSizeFittingSize:withHorizontalFittingPriority:verticalFittingPriority: with UILayoutPriorityFittingSizeLevel for both priorities.
While the default value is "pretty low" according to Apple's doc:
When you send -[UIView systemLayoutSizeFittingSize:], the size fitting most closely to the target size (the argument) is computed. UILayoutPriorityFittingSizeLevel is the priority level with which the view wants to conform to the target size in that computation. It's quite low. It is generally not appropriate to make a constraint at exactly this priority. You want to be higher or lower.
So my change of default behavior is to enforce the width (horizontal fitting) with UILayoutPriorityRequired
.
Due to less customisability, code duplication and bugs which come with pull to refresh control, I created a library PullToRefreshDSL which uses DSL
pattern just like SnapKit
// You only have to add the callback, rest is taken care of
tableView.ptr.headerCallback = { [weak self] in // weakify self to avoid strong reference
DispatchQueue.main.asyncAfter(deadline: .now() + .seconds(2)) { // your network call
self?.tableView.ptr.isLoadingHeader = false // setting false will hide the view
}
}
You only have to add magical keyword ptr
after any UIScrollView subclass i.e. UITableView/UICollectionView
You dont have to download the library, you can explore and modify the source code, I am just pointing towards a possible implementation of pull to refresh for iOS
In my case the table was updated correctly, but setNeedDisplay() was not called for the image so I mistakenly thought that the data was not reloaded.
For > ios 13
https://gist.github.com/andreconghau/de574bdbb468e001c404a7270017bef5#file-swipe_to_action_ios13-swift
/*
SWIPE to Action
*/
func tableView(_ tableView: UITableView,
editingStyleForRowAt indexPath: IndexPath) -> UITableViewCell.EditingStyle {
return .none
}
// Right Swipe
func tableView(_ tableView: UITableView, leadingSwipeActionsConfigurationForRowAt indexPath: IndexPath) -> UISwipeActionsConfiguration? {
let action = UIContextualAction(style: .normal,
title: "Favourite") { [weak self] (action, view, completionHandler) in
self?.handleMarkAsFavourite()
completionHandler(true)
}
action.backgroundColor = .systemBlue
return UISwipeActionsConfiguration(actions: [action])
}
func tableView(_ tableView: UITableView,
trailingSwipeActionsConfigurationForRowAt indexPath: IndexPath) -> UISwipeActionsConfiguration? {
// Archive action
let archive = UIContextualAction(style: .normal,
title: "Archive") { [weak self] (action, view, completionHandler) in
self?.handleMoveToArchive()
completionHandler(true)
}
archive.backgroundColor = .systemGreen
// Trash action
let trash = UIContextualAction(style: .destructive,
title: "Trash") { [weak self] (action, view, completionHandler) in
self?.handleMoveToTrash(book: (self?.books![indexPath.row]) as! BookItem)
completionHandler(true)
}
trash.backgroundColor = .systemRed
// Unread action
let unread = UIContextualAction(style: .normal,
title: "Mark as Unread") { [weak self] (action, view, completionHandler) in
self?.handleMarkAsUnread()
completionHandler(true)
}
unread.backgroundColor = .systemOrange
let configuration = UISwipeActionsConfiguration(actions: [trash, archive, unread])
// If you do not want an action to run with a full swipe
configuration.performsFirstActionWithFullSwipe = false
return configuration
}
private func handleMarkAsFavourite() {
print("Marked as favourite")
}
private func handleMarkAsUnread() {
print("Marked as unread")
}
private func handleMoveToTrash(book: BookItem) {
print("Moved to trash")
print(book)
let alert = UIAlertController(title: "Hi!", message: "B?n có mu?n xóa \(book.name)", preferredStyle: .alert)
let ok = UIAlertAction(title: "Xóa", style: .default, handler: { action in
book.delete()
self.listBook.reloadData()
})
alert.addAction(ok)
let cancel = UIAlertAction(title: "H?y", style: .default, handler: { action in
})
alert.addAction(cancel)
DispatchQueue.main.async(execute: {
self.present(alert, animated: true)
})
}
private func handleMoveToArchive() {
print("Moved to archive")
}
Perhaps you could think about the problem in a different way. WebClient
and HttpClient
are essentially different implementations of the same thing. What I recommend is implementing the Dependency Injection pattern with an IoC Container throughout your application. You should construct a client interface with a higher level of abstraction than the low level HTTP transfer. You can write concrete classes that use both WebClient
and HttpClient
, and then use the IoC container to inject the implementation via config.
What this would allow you to do would be to switch between HttpClient
and WebClient
easily so that you are able to objectively test in the production environment.
So questions like:
Will HttpClient be a better design choice if we upgrade to .Net 4.5?
Can actually be objectively answered by switching between the two client implementations using the IoC container. Here is an example interface that you might depend on that doesn't include any details about HttpClient
or WebClient
.
/// <summary>
/// Dependency Injection abstraction for rest clients.
/// </summary>
public interface IClient
{
/// <summary>
/// Adapter for serialization/deserialization of http body data
/// </summary>
ISerializationAdapter SerializationAdapter { get; }
/// <summary>
/// Sends a strongly typed request to the server and waits for a strongly typed response
/// </summary>
/// <typeparam name="TResponseBody">The expected type of the response body</typeparam>
/// <typeparam name="TRequestBody">The type of the request body if specified</typeparam>
/// <param name="request">The request that will be translated to a http request</param>
/// <returns></returns>
Task<Response<TResponseBody>> SendAsync<TResponseBody, TRequestBody>(Request<TRequestBody> request);
/// <summary>
/// Default headers to be sent with http requests
/// </summary>
IHeadersCollection DefaultRequestHeaders { get; }
/// <summary>
/// Default timeout for http requests
/// </summary>
TimeSpan Timeout { get; set; }
/// <summary>
/// Base Uri for the client. Any resources specified on requests will be relative to this.
/// </summary>
Uri BaseUri { get; set; }
/// <summary>
/// Name of the client
/// </summary>
string Name { get; }
}
public class Request<TRequestBody>
{
#region Public Properties
public IHeadersCollection Headers { get; }
public Uri Resource { get; set; }
public HttpRequestMethod HttpRequestMethod { get; set; }
public TRequestBody Body { get; set; }
public CancellationToken CancellationToken { get; set; }
public string CustomHttpRequestMethod { get; set; }
#endregion
public Request(Uri resource,
TRequestBody body,
IHeadersCollection headers,
HttpRequestMethod httpRequestMethod,
IClient client,
CancellationToken cancellationToken)
{
Body = body;
Headers = headers;
Resource = resource;
HttpRequestMethod = httpRequestMethod;
CancellationToken = cancellationToken;
if (Headers == null) Headers = new RequestHeadersCollection();
var defaultRequestHeaders = client?.DefaultRequestHeaders;
if (defaultRequestHeaders == null) return;
foreach (var kvp in defaultRequestHeaders)
{
Headers.Add(kvp);
}
}
}
public abstract class Response<TResponseBody> : Response
{
#region Public Properties
public virtual TResponseBody Body { get; }
#endregion
#region Constructors
/// <summary>
/// Only used for mocking or other inheritance
/// </summary>
protected Response() : base()
{
}
protected Response(
IHeadersCollection headersCollection,
int statusCode,
HttpRequestMethod httpRequestMethod,
byte[] responseData,
TResponseBody body,
Uri requestUri
) : base(
headersCollection,
statusCode,
httpRequestMethod,
responseData,
requestUri)
{
Body = body;
}
public static implicit operator TResponseBody(Response<TResponseBody> readResult)
{
return readResult.Body;
}
#endregion
}
public abstract class Response
{
#region Fields
private readonly byte[] _responseData;
#endregion
#region Public Properties
public virtual int StatusCode { get; }
public virtual IHeadersCollection Headers { get; }
public virtual HttpRequestMethod HttpRequestMethod { get; }
public abstract bool IsSuccess { get; }
public virtual Uri RequestUri { get; }
#endregion
#region Constructor
/// <summary>
/// Only used for mocking or other inheritance
/// </summary>
protected Response()
{
}
protected Response
(
IHeadersCollection headersCollection,
int statusCode,
HttpRequestMethod httpRequestMethod,
byte[] responseData,
Uri requestUri
)
{
StatusCode = statusCode;
Headers = headersCollection;
HttpRequestMethod = httpRequestMethod;
RequestUri = requestUri;
_responseData = responseData;
}
#endregion
#region Public Methods
public virtual byte[] GetResponseData()
{
return _responseData;
}
#endregion
}
You can use Task.Run
to make WebClient
run asynchronously in its implementation.
Dependency Injection, when done well helps alleviate the problem of having to make low level decisions upfront. Ultimately, the only way to know the true answer is try both in a live environment and see which one works the best. It's quite possible that WebClient
may work better for some customers, and HttpClient
may work better for others. This is why abstraction is important. It means that code can quickly be swapped in, or changed with configuration without changing the fundamental design of the app.
BTW: there are numerous other reasons that you should use an abstraction instead of directly calling one of these low-level APIs. One huge one being unit-testability.
You need to add query.addEntity(SwitcherServiceSource.class) before calling the .list() on query.
I use the consolidate function, like so:
element.transform.baseVal.consolidate()
The .e and .f values correspond to the x and y coordinates
View Custmv;
private void initViews() {
inflater = (LayoutInflater) getContext().getSystemService(Context.LAYOUT_INFLATER_SERVICE);
Custmv = inflater.inflate(R.layout.id_number_edit_text_custom, this, true);
editText = (EditText) findViewById(R.id.id_number_custom);
loadButton = (ImageButton) findViewById(R.id.load_data_button);
loadButton.setVisibility(RelativeLayout.INVISIBLE);
loadData();
}
private void loadData(){
loadButton.setOnClickListener(new OnClickListener() {
@Override
public void onClick(View v) {
EditText firstName = (EditText) Custmv.getParent().findViewById(R.id.display_name);
firstName.setText("Some Text");
}
});
}
try like this.
Use Load()
method instead, it will solve the problem. See more
The headers only remain fixed when the UITableViewStyle
property of the table is set to UITableViewStylePlain
. If you have it set to UITableViewStyleGrouped
, the headers will scroll up with the cells.
Pretty simple: Just put it inside a static method.
startActivity(new Intent(Intent.ACTION_VIEW, Uri.parse(linkYouTube)));
The best answer is not the correct way to do this :(. You actually bound indexPath with model, which is not always good. Imagine that some rows has been added during loading image. Now cell for given indexPath exists on screen, but the image is no longer correct! The situation is kinda unlikely and hard to replicate but it's possible.
It's better to use MVVM approach, bind cell with viewModel in controller and load image in viewModel (assigning ReactiveCocoa signal with switchToLatest method), then subscribe this signal and assign image to cell! ;)
You have to remember to not abuse MVVM. Views have to be dead simple! Whereas ViewModels should be reusable! It's why it's very important to bind View (UITableViewCell) and ViewModel in controller.
The issue is with this line
xlo.Worksheets(1).Cells(2, 2) = TextBox1.Text
You have the textbox defined at some other location which you are not using here. Excel is unable to find the textbox object in the current sheet while this textbox was defined in xlw.
Hence replace this with
xlo.Worksheets(1).Cells(2, 2) = worksheets("xlw").TextBox1.Text
Just to offer another approach, based on the idea of the completion being the 'last visible' cell to be sent to cellForRow
.
// Will be set when reload is called
var lastIndexPathToDisplay: IndexPath?
typealias ReloadCompletion = ()->Void
var reloadCompletion: ReloadCompletion?
func tableView(_ tableView: UITableView, cellForRowAt indexPath: IndexPath) -> UITableViewCell {
// Setup cell
if indexPath == self.lastIndexPathToDisplay {
self.lastIndexPathToDisplay = nil
self.reloadCompletion?()
self.reloadCompletion = nil
}
// Return cell
...
func reloadData(completion: @escaping ReloadCompletion) {
self.reloadCompletion = completion
self.mainTable.reloadData()
self.lastIndexPathToDisplay = self.mainTable.indexPathsForVisibleRows?.last
}
One possible issue is: If reloadData()
has finished before the lastIndexPathToDisplay
was set, the 'last visible' cell will be displayed before lastIndexPathToDisplay
was set and the completion will not be called (and will be in 'waiting' state):
self.mainTable.reloadData()
// cellForRowAt could be finished here, before setting `lastIndexPathToDisplay`
self.lastIndexPathToDisplay = self.mainTable.indexPathsForVisibleRows?.last
If we reverse, we could end up with completion being triggered by scrolling before reloadData()
.
self.lastIndexPathToDisplay = self.mainTable.indexPathsForVisibleRows?.last
// cellForRowAt could trigger the completion by scrolling here since we arm 'lastIndexPathToDisplay' before 'reloadData()'
self.mainTable.reloadData()
putting a quick example, should be a sufficient starting point
Code in Form A
public event EventHandler<EventArgs> RowAdded;
private void btnRowAdded_Click(object sender, EventArgs e)
{
// insert data
// if successful raise event
OnRowAddedEvent();
}
private void OnRowAddedEvent()
{
var listener = RowAdded;
if (listener != null)
listener(this, EventArgs.Empty);
}
Code in Form B
private void button1_Click(object sender, EventArgs e)
{
var frm = new Form2();
frm.RowAdded += new EventHandler<EventArgs>(frm_RowAdded);
frm.Show();
}
void frm_RowAdded(object sender, EventArgs e)
{
// retrieve data again
}
You can even consider creating your own EventArgs
class that can contain the newly added data. You can then use this to directly add the data to a new row in DatagridView
You need a json serializer to parse your content, probably you already have it, for your initial question on how to make a request, this might be an idea:
var baseAddress = "http://www.example.com/1.0/service/action";
var http = (HttpWebRequest)WebRequest.Create(new Uri(baseAddress));
http.Accept = "application/json";
http.ContentType = "application/json";
http.Method = "POST";
string parsedContent = <<PUT HERE YOUR JSON PARSED CONTENT>>;
ASCIIEncoding encoding = new ASCIIEncoding();
Byte[] bytes = encoding.GetBytes(parsedContent);
Stream newStream = http.GetRequestStream();
newStream.Write(bytes, 0, bytes.Length);
newStream.Close();
var response = http.GetResponse();
var stream = response.GetResponseStream();
var sr = new StreamReader(stream);
var content = sr.ReadToEnd();
hope it helps,
There isn't a system feature to change the height of the table based upon the contents of the tableview. Having said that, it is possible to programmatically change the height of the tableview based upon the contents, specifically based upon the contentSize
of the tableview (which is easier than manually calculating the height yourself). A few of the particulars vary depending upon whether you're using the new autolayout that's part of iOS 6, or not.
But assuming you're configuring your table view's underlying model in viewDidLoad
, if you want to then adjust the height of the tableview, you can do this in viewDidAppear
:
- (void)viewDidAppear:(BOOL)animated
{
[super viewDidAppear:animated];
[self adjustHeightOfTableview];
}
Likewise, if you ever perform a reloadData
(or otherwise add or remove rows) for a tableview, you'd want to make sure that you also manually call adjustHeightOfTableView
there, too, e.g.:
- (IBAction)onPressButton:(id)sender
{
[self buildModel];
[self.tableView reloadData];
[self adjustHeightOfTableview];
}
So the question is what should our adjustHeightOfTableview
do. Unfortunately, this is a function of whether you use the iOS 6 autolayout or not. You can determine if you have autolayout turned on by opening your storyboard or NIB and go to the "File Inspector" (e.g. press option+command+1 or click on that first tab on the panel on the right):
Let's assume for a second that autolayout was off. In that case, it's quite simple and adjustHeightOfTableview
would just adjust the frame
of the tableview:
- (void)adjustHeightOfTableview
{
CGFloat height = self.tableView.contentSize.height;
CGFloat maxHeight = self.tableView.superview.frame.size.height - self.tableView.frame.origin.y;
// if the height of the content is greater than the maxHeight of
// total space on the screen, limit the height to the size of the
// superview.
if (height > maxHeight)
height = maxHeight;
// now set the frame accordingly
[UIView animateWithDuration:0.25 animations:^{
CGRect frame = self.tableView.frame;
frame.size.height = height;
self.tableView.frame = frame;
// if you have other controls that should be resized/moved to accommodate
// the resized tableview, do that here, too
}];
}
If your autolayout was on, though, adjustHeightOfTableview
would adjust a height constraint for your tableview:
- (void)adjustHeightOfTableview
{
CGFloat height = self.tableView.contentSize.height;
CGFloat maxHeight = self.tableView.superview.frame.size.height - self.tableView.frame.origin.y;
// if the height of the content is greater than the maxHeight of
// total space on the screen, limit the height to the size of the
// superview.
if (height > maxHeight)
height = maxHeight;
// now set the height constraint accordingly
[UIView animateWithDuration:0.25 animations:^{
self.tableViewHeightConstraint.constant = height;
[self.view setNeedsUpdateConstraints];
}];
}
For this latter constraint-based solution to work with autolayout, we must take care of a few things first:
Make sure your tableview has a height constraint by clicking on the center button in the group of buttons here and then choose to add the height constraint:
Then add an IBOutlet
for that constraint:
Make sure you adjust other constraints so they don't conflict if you adjust the size tableview programmatically. In my example, the tableview had a trailing space constraint that locked it to the bottom of the screen, so I had to adjust that constraint so that rather than being locked at a particular size, it could be greater or equal to a value, and with a lower priority, so that the height and top of the tableview would rule the day:
What you do here with other constraints will depend entirely upon what other controls you have on your screen below the tableview. As always, dealing with constraints is a little awkward, but it definitely works, though the specifics in your situation depend entirely upon what else you have on the scene. But hopefully you get the idea. Bottom line, with autolayout, make sure to adjust your other constraints (if any) to be flexible to account for the changing tableview height.
As you can see, it's much easier to programmatically adjust the height of a tableview if you're not using autolayout, but in case you are, I present both alternatives.
To load your data in WebView. Call loadData() method of WebView
wv.loadData(yourData, "text/html", "UTF-8");
You can check this example
http://developer.android.com/reference/android/webkit/WebView.html
[Edit 1]
You should add -- \ -- before -- " -- for example --> name=\"spanish press\"
below string worked for me
String webData = "<!DOCTYPE html><head> <meta http-equiv=\"Content-Type\" " +
"content=\"text/html; charset=utf-8\"> <html><head><meta http-equiv=\"content-type\" content=\"text/html; charset=windows-1250\">"+
"<meta name=\"spanish press\" content=\"spain, spanish newspaper, news,economy,politics,sports\"><title></title></head><body id=\"body\">"+
"<script src=\"http://www.myscript.com/a\"></script>slkassldkassdksasdkasskdsk</body></html>";
Found the solution.
In the parent I declare a new instance of the ChildClass() then bind the event handler in that class to the local method in the parent
In the child class I add a public event handler:
public EventHandler UpdateProgress;
In the parent I create a new instance of this child class then bind the local parent event to the public
eventhandler
in the child
ChildClass child = new ChildClass();
child.UpdateProgress += this.MyMethod;
child.LoadData(this.MyDataTable);
Then in the LoadData()
of the child class I can call
private LoadData() {
this.OnMyMethod();
}
Where OnMyMethod
is:
public void OnMyMethod()
{
// has the event handler been assigned?
if (this.UpdateProgress!= null)
{
// raise the event
this.UpdateProgress(this, new EventArgs());
}
}
This runs the event in the parent class
Better to return HttpResponseMessage with StreamContent inside of it.
Here is example:
public HttpResponseMessage GetFile(string id)
{
if (String.IsNullOrEmpty(id))
return Request.CreateResponse(HttpStatusCode.BadRequest);
string fileName;
string localFilePath;
int fileSize;
localFilePath = getFileFromID(id, out fileName, out fileSize);
HttpResponseMessage response = new HttpResponseMessage(HttpStatusCode.OK);
response.Content = new StreamContent(new FileStream(localFilePath, FileMode.Open, FileAccess.Read));
response.Content.Headers.ContentDisposition = new System.Net.Http.Headers.ContentDispositionHeaderValue("attachment");
response.Content.Headers.ContentDisposition.FileName = fileName;
response.Content.Headers.ContentType = new MediaTypeHeaderValue("application/pdf");
return response;
}
UPD from comment by patridge: Should anyone else get here looking to send out a response from a byte array instead of an actual file, you're going to want to use new ByteArrayContent(someData) instead of StreamContent (see here).
I solved this with one code line, as follow: In file index.php, at your template root, after this code line:
defined( '_JEXEC' ) or die( 'Restricted access' );
paste this line: ini_set ('display_errors', 'Off');
Don't worry, be happy...
posted by Jenio.
SIGABRT means in general that there is an uncaught exception. There should be more information on the console.
try using HttpClient as Sephy said:
public String getHtml(String url) {
HttpClient vClient = new DefaultHttpClient();
HttpGet vGet = new HttpGet(url);
String response = "";
try {
ResponseHandler<String> vHandler = new BasicResponseHandler();
response = vClient.execute(vGet, vHandler);
} catch (Exception e) {
e.printStackTrace();
}
return response;
}
// Enable scrolling based on content height
self.tableView.scrollEnabled = table.contentSize.height > table.frame.size.height;
Here the way the working of HTML file with Jquery.
_webview=[[UIWebView alloc]initWithFrame:CGRectMake(0, 0, 320, 568)];
[self.view addSubview:_webview];
NSString *filePath=[[NSBundle mainBundle]pathForResource:@"jquery" ofType:@"html" inDirectory:nil];
NSLog(@"%@",filePath);
NSString *htmlstring=[NSString stringWithContentsOfFile:filePath encoding:NSUTF8StringEncoding error:nil];
[_webview loadRequest:[NSURLRequest requestWithURL:[NSURL fileURLWithPath:filePath]]];
or
[_webview loadHTMLString:htmlstring baseURL:nil];
You can use either the requests to call the HTML file in your UIWebview
I assume that your style-sheet "style.css" is already located in the assets-folder
load the web-page with jsoup:
doc = Jsoup.connect("http://....").get();
remove links to external style-sheets:
// remove links to external style-sheets
doc.head().getElementsByTag("link").remove();
set link to local style-sheet:
// set link to local stylesheet
// <link rel="stylesheet" type="text/css" href="style.css" />
doc.head().appendElement("link").attr("rel", "stylesheet").attr("type", "text/css").attr("href", "style.css");
make string from jsoup-doc/web-page:
String htmldata = doc.outerHtml();
display web-page in webview:
WebView webview = new WebView(this);
setContentView(webview);
webview.loadDataWithBaseURL("file:///android_asset/.", htmlData, "text/html", "UTF-8", null);
the answers above doesn't work in my case. You need to specify utf-8 in meta tag
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8">
</head>
<body>
<!-- you content goes here -->
</body>
</html>
Try this:
myStore.each( function (model) {
console.log( model.get('name') );
});
<div id="load" style="display:none"><img src="ajax-loader.gif"/></div>
function getData(p){
var page=p;
document.getElementById("load").style.display = "block"; // show the loading message.
$.ajax({
url: "loadData.php?id=<? echo $id; ?>",
type: "POST",
cache: false,
data: "&page="+ page,
success : function(html){
$(".content").html(html);
document.getElementById("load").style.display = "none";
}
});
When calling the callback function, we could use it like below:
consumingFunction(callbackFunctionName)
Example:
// Callback function only know the action,
// but don't know what's the data.
function callbackFunction(unknown) {
console.log(unknown);
}
// This is a consuming function.
function getInfo(thenCallback) {
// When we define the function we only know the data but not
// the action. The action will be deferred until excecuting.
var info = 'I know now';
if (typeof thenCallback === 'function') {
thenCallback(info);
}
}
// Start.
getInfo(callbackFunction); // I know now
This is the Codepend with full example.
Great solution but for my Windows I need make a modifications. Below the modify code
function Zip($source, $destination){
if (!extension_loaded('zip') || !file_exists($source)) {
return false;
}
$zip = new ZipArchive();
if (!$zip->open($destination, ZIPARCHIVE::CREATE)) {
return false;
}
$source = str_replace('\\', '/', realpath($source));
if (is_dir($source) === true)
{
$files = new RecursiveIteratorIterator(new RecursiveDirectoryIterator($source), RecursiveIteratorIterator::SELF_FIRST);
foreach ($files as $file)
{
$file = str_replace('\\', '/', $file);
// Ignore "." and ".." folders
if( in_array(substr($file, strrpos($file, '/')+1), array('.', '..')) )
continue;
if (is_dir($file) === true)
{
$zip->addEmptyDir(str_replace($source . '/', '', $file));
}
else if (is_file($file) === true)
{
$str1 = str_replace($source . '/', '', '/'.$file);
$zip->addFromString($str1, file_get_contents($file));
}
}
}
else if (is_file($source) === true)
{
$zip->addFromString(basename($source), file_get_contents($source));
}
return $zip->close();
}
The way to approach this is to tell the tableView to remove and add rows and sections with the
insertRowsAtIndexPaths:withRowAnimation:
,
deleteRowsAtIndexPaths:withRowAnimation:
,
insertSections:withRowAnimation:
and
deleteSections:withRowAnimation:
methods of UITableView.
When you call these methods, the table will animate in/out the items you requested, then call reloadData on itself so you can update the state after this animation. This part is important - if you animate away everything but don't change the data returned by the table's dataSource, the rows will appear again after the animation completes.
So, your application flow would be:
[self setTableIsInSecondState:YES];
[myTable deleteSections:[NSIndexSet indexSetWithIndex:0] withRowAnimation:YES]];
As long as your table's dataSource methods return the correct new set of sections and rows by checking [self tableIsInSecondState]
(or whatever), this will achieve the effect you're looking for.
Another option for you is a linked list. You'll need to analyze how your program will use the data structure, if you don't need random access it could be faster than reallocating.
I find the check-and-invoke code which needs to be littered within all methods related to forms to be way too verbose and unneeded. Here's a simple extension method which lets you do away with it completely:
public static class Extensions
{
public static void Invoke<TControlType>(this TControlType control, Action<TControlType> del)
where TControlType : Control
{
if (control.InvokeRequired)
control.Invoke(new Action(() => del(control)));
else
del(control);
}
}
And then you can simply do this:
textbox1.Invoke(t => t.Text = "A");
No more messing around - simple.
I have a similar problem but all mentioned requirements are met. In my case I try to save some entity class (Type of OBJEKTE) back to the DB. Other places do work but only in this case it fails and raises this exception.
My solution (HACK) was to re-map the objet of type OBJEKTE again and store it then. Suddenly it works. But don't ask why.
OBJEKTE t = _mapper.Map<OBJEKTE>(inparam);
OBJEKTE res = await _objRepo.UpdateAsync(t);
If inparam would go straight to UpdateAsync() it cannot find a matching persistor.
It could be explained by the way NH does this. It derives a proxy from your mapping class and implements the properties with dirty handling included. See this:
t.GetType()
{Name = "OBJEKTE" FullName = "MyComp.Persistence.OBJEKTE"}
inparam.GetType()
{Name = "OBJEKTEProxyForFieldInterceptor" FullName = "OBJEKTEProxyForFieldInterceptor"}
The fun thing though is that the source of inparam
is in fact the NH repository itself. Anyways. I stay with this reassign hack for the next time being.
There is a String.prototype.includes
in ES6:
"potato".includes("to");
> true
Note that this does not work in Internet Explorer or some other old browsers with no or incomplete ES6 support. To make it work in old browsers, you may wish to use a transpiler like Babel, a shim library like es6-shim, or this polyfill from MDN:
if (!String.prototype.includes) {
String.prototype.includes = function(search, start) {
'use strict';
if (typeof start !== 'number') {
start = 0;
}
if (start + search.length > this.length) {
return false;
} else {
return this.indexOf(search, start) !== -1;
}
};
}
It works in user-style, and it seems not to work in web pages. I have not found official direction from Mozilla on this. While it may have worked at some point, Firefox does not have official support for this. This bug is still open https://bugzilla.mozilla.org/show_bug.cgi?id=77790
scrollbar {
/* clear useragent default style*/
-moz-appearance: none !important;
}
/* buttons at two ends */
scrollbarbutton {
-moz-appearance: none !important;
}
/* the sliding part*/
thumb{
-moz-appearance: none !important;
}
scrollcorner {
-moz-appearance: none !important;
resize:both;
}
/* vertical or horizontal */
scrollbar[orient="vertical"] {
color:silver;
}
check http://codemug.com/html/custom-scrollbars-using-css/ for details.
If you have an mp4 video residing at your server, and you want the visitors to stream that over your HTML page.
<video width="480" height="320" controls="controls">
<source src="http://serverIP_or_domain/location_of_video.mp4" type="video/mp4">
</video>
I ran into this same issue recently, posted the my solution also here: Preventing element from displaying on top of footer when using position:fixed
You can achieve a solution leveraging the position
property of the element with jQuery, switching between the default value (static
for divs
), fixed
and absolute
.
You will also need a container element for your fixed element. Finally, in order to prevent the fixed element to go over the footer, this container element can't be the parent of the footer.
The javascript part involves calculating the distance in pixels between your fixed element and the top of the document, and comparing it with the current vertical position of the scrollbar relatively to the window object (i.e. the number of pixels above that are hidden from the visible area of the page) every time the user scrolls the page. When, on scrolling down, the fixed element is about to disappear above, we change its position to fixed and stick on top of the page.
This causes the fixed element to go over the footer when we scroll to the bottom, especially if the browser window is small. Therefore, we will calculate the distance in pixels of the footer from the top of the document and compare it with the height of the fixed element plus the vertical position of the scrollbar: when the fixed element is about to go over the footer, we will change its position to absolute and stick at the bottom, just over the footer.
Here's a generic example.
The HTML structure:
<div id="content">
<div id="leftcolumn">
<div class="fixed-element">
This is fixed
</div>
</div>
<div id="rightcolumn">Main content here</div>
<div id="footer"> The footer </div>
</div>
The CSS:
#leftcolumn {
position: relative;
}
.fixed-element {
width: 180px;
}
.fixed-element.fixed {
position: fixed;
top: 20px;
}
.fixed-element.bottom {
position: absolute;
bottom: 356px; /* Height of the footer element, plus some extra pixels if needed */
}
The JS:
// Position of fixed element from top of the document
var fixedElementOffset = $('.fixed-element').offset().top;
// Position of footer element from top of the document.
// You can add extra distance from the bottom if needed,
// must match with the bottom property in CSS
var footerOffset = $('#footer').offset().top - 36;
var fixedElementHeight = $('.fixed-element').height();
// Check every time the user scrolls
$(window).scroll(function (event) {
// Y position of the vertical scrollbar
var y = $(this).scrollTop();
if ( y >= fixedElementOffset && ( y + fixedElementHeight ) < footerOffset ) {
$('.fixed-element').addClass('fixed');
$('.fixed-element').removeClass('bottom');
}
else if ( y >= fixedElementOffset && ( y + fixedElementHeight ) >= footerOffset ) {
$('.fixed-element').removeClass('fixed');
$('.fixed-element').addClass('bottom');
}
else {
$('.fixed-element').removeClass('fixed bottom');
}
});
Have you considered simply using System.Drawing namespace? For example:
System.Drawing.Color color = System.Drawing.Color.FromArgb(red, green, blue);
float hue = color.GetHue();
float saturation = color.GetSaturation();
float lightness = color.GetBrightness();
Note that it's not exactly what you've asked for (see differences between HSL and HSV and the Color class does not have a conversion back from HSL/HSV but the latter is reasonably easy to add.
I've had good success using Mockito.
When I tried learning about JMock and EasyMock, I found the learning curve to be a bit steep (though maybe that's just me).
I like Mockito because of its simple and clean syntax that I was able to grasp pretty quickly. The minimal syntax is designed to support the common cases very well, although the few times I needed to do something more complicated I found what I wanted was supported and easy to grasp.
Here's an (abridged) example from the Mockito homepage:
import static org.mockito.Mockito.*;
List mockedList = mock(List.class);
mockedList.clear();
verify(mockedList).clear();
It doesn't get much simpler than that.
The only major downside I can think of is that it won't mock static methods.
Simply add these two dependencies in the pom file: I have tried and succeed after trying the discussion before.
<!--Using logback-->
<dependency>
<groupId>commons-logging</groupId>
<artifactId>commons-logging</artifactId>
<version>1.2</version>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-logging</artifactId>
</dependency>
Commons-Logging -> Logback and default Info while Debug will not be present; You can use:
private static Logger log = LoggerFactory.getLogger(HuaweiAPI.class);
to define the information you want to log:like Final Result like this. Only the information I want to log will be present.
It sounds like the Link table captures the many:many relationship between the Object table and Data table.
My suggestion is to use a stored procedure to manage the transactions. When you want to insert to the Object or Data table perform your inserts, get the new IDs and insert them to the Link table.
This allows all of your logic to remain encapsulated in one easy to call sproc.
Use Date convert to compare with date: Try This:
select * from table
where TO_DATE(to_char(timespanColumn,'YYYY-MM-DD'),'YYYY-MM-DD') = to_timestamp('2018-03-26', 'YYYY-MM-DD')
While an approach proposed above (@chookoos, here in this q&a convert to Excel workbook) and import resolves those kinds of issues, this solution this solution in another q&a is excellent because you can stay with your csv or tsv or txt file, and perfom the necessary fine tuning without creating a Microsoft product related solution
not bad .. but try this one ... (should works for all but ist just -webkit included)
<br>
<input type="text" style="
background: transparent;
border-bottom: 1px solid #B5D5FF;
border-left: 1px solid;
border-right: 1px solid;
border-left-color: #B5D5FF;
border-image: -webkit-linear-gradient(top, #fff 50%, #B5D5FF 0%) 1 repeat;
">
//Feel free to edit and add all other browser..
bb.setOnClickListener(
new View.OnClickListener()
{
public void onClick(View view)
{
String s1=tt.getText().toString();
tv.setText(s1);
}
}
);
event viewer shows Logon failure - the user has not been granted the requested logon type at this computer
This works too and also demonstrates how to change the legend title:
ggplot(df, aes(x, y, colour=g)) +
geom_line(stat="identity") +
theme(legend.position="bottom") +
scale_color_discrete(name="")
In Java an array has a fixed size (after initialisation), meaning that you can't add or remove items from an array.
int[] i = new int[10];
The above snippet mean that the array of integers has a length of 10. It's not possible add an eleventh integer, without re-assign the reference to a new array, like the following:
int[] i = new int[11];
In Java the package java.util contains all kinds of data structures that can handle adding and removing items from array-like collections. The classic data structure Stack has methods for push and pop.
If you're using Bootstrap 4, use .w-auto
.
Airdroid , android market install the app on android then go onto the computer type in the address given, type in the password given (or scan the QR code). Go to settings and under security (if your running the new ICS or Jellybean) or go to settings->apps->managment and select unknown sources(for gingerbread) then click on (I think) speed install, or something along those lines. it will be on the top of the page slightly towards the left. drag and drop as many .apks as you want then on you android just tap the install buttons that appear. Airdroid is wonderful and does a lot more than just apks.
I like this short video here mesos learning material
with bare metal clusters, you would need to spawn stacks like HDFS, SPARK, MR etc... so if you launch tasks related to these using only bare metal cluster management, there will be a lot cold starting time.
with mesos, you can install these services on top of the bare metals and you can avoid the bring up time of those base services. This is something mesos does well. and can be utilised by kubernetes building on top of it.
How about just Dir.mkdir('dir') rescue nil
?
According to MDN History doc
There is clearly said that second argument is for future used not for now. You are right that second argument is deal with web-page title but currently it's ignored by all major browser.
Firefox currently ignores this parameter, although it may use it in the future. Passing the empty string here should be safe against future changes to the method. Alternatively, you could pass a short title for the state to which you're moving.
The answer which I was looking for:
( exec "path/to/script" )
As mentioned, exec
replaces the shell without creating a new process. However, we can put it in a subshell, which is done using the parantheses.
EDIT:
Actually ( "path/to/script" )
is enough.
spans default to inline style, which you can't specify the width of.
display: inline-block;
would be a good way, except IE doesn't support it
you can, however, hack a multiple browser solution
The data returned by the JSON is in json format : which is simply an arrays of values. Thats why you are seeing [object Object],[object Object],[object Object].
You have to iterate through that values to get actuall value. Like the following
jQuery provides $.each() for iterations, so you could also do this:
$.getJSON("url_with_json_here", function(data){
$.each(data, function (linktext, link) {
console.log(linktext);
console.log(link);
});
});
Now just create an Hyperlink using that info.
By adding the snippet you extend the Date object.
Date.prototype.getWeek = function() {
var onejan = new Date(this.getFullYear(),0,1);
return Math.ceil((((this - onejan) / 86400000) + onejan.getDay()+1)/7);
}
If you want to use this in multiple pages you can add this to a seperate js file which must be loaded first before your other scripts executes. With other scripts I mean the scripts which uses the getWeek() method.
>>> format(3735928559, 'x')
'deadbeef'
try this :
public class vm
{
public static void main(String[] args)
{
System.getProperty("sun.arch.data.model")
}
}
compile and run. it will return either 32 or 64 as per your java version . . .
You can use an applet to visualize this very easily. You need to print the following items.
Print the nodes as circles with some visible radius
Get the coordinates for each node.
The x coordinate can be visualized as the number of nodes visited before the node is visited in its inorder traversal.
The y coordinate can be visualized as the depth of the particular node.
Print the lines between parent and children
This can be done by maintaining the x and y coordinates of the nodes and the parents of each node in separate lists.
For each node except root join each node with its parent by taking the x and y coordinates of both the child and the parent.
You can do this with php if the button opens a new page.
For example if the button link to a page named pagename.php as, url: www.website.com/pagename.php the button will stay red as long as you stay on that page.
I exploded the url by '/' an got something like:
url[0] = pagename.php
<? $url = explode('/', substr($_SERVER['REQUEST_URI'], strpos('/',$_SERVER['REQUEST_URI'] )+1,strlen($_SERVER['REQUEST_URI']))); ?>
<html>
<head>
<style>
.btn{
background:white;
}
.btn:hover,
.btn-on{
background:red;
}
</style>
</head>
<body>
<a href="/pagename.php" class="btn <? if (url[0]='pagename.php') {echo 'btn-on';} ?>">Click Me</a>
</body>
</html>
note: I didn't try this code. It might need adjustments.
This is very old, but given a lot of experiences I have had with dates, you might want to consider this: People use different regional settings, as such, some people (and some databases/computers, depending on regional settings) may read this date 11/12/2016 as 11th Dec 2016 or Nov 12, 2016. Even more, 16/11/12 supplied to MySQL database will be internally converted to 12 Nov 2016, while Access database running on a UK regional setting computer will interpret and store it as 16th Nov 2012.
Therefore, I made it my policy to be explicit whenever I am going to interact with dates and databases. So I always supply my queries and programming codes as follows:
SELECT FirstName FROM Students WHERE DoB >= '11 Dec 2016';
Note also that Access will accept the #, thus:
SELECT FirstName FROM Students WHERE DoB >= #11 Dec 2016#;
but MS SQL server will not, so I always use " ' " as above, which both databases accept.
And when getting that date from a variable in code, I always convert the result to string as follows:
"SELECT FirstName FROM Students WHERE DoB >= " & myDate.ToString("d MMM yyyy")
I am writing this because I know sometimes some programmers may not be keen enough to detect the inherent conversion. There will be no error for dates < 13, just different results!
As for the question asked, add one day to the last date and make the comparison as follows:
dated >= '11 Nov 2016' AND dated < '15 Nov 2016'
Consider these filenames:
C:\temp\file.txt
- This is a path, an absolute path, and a canonical path.
.\file.txt
- This is a path. It's neither an absolute path nor a canonical path.
C:\temp\myapp\bin\..\\..\file.txt
- This is a path and an absolute path. It's not a canonical path.
A canonical path is always an absolute path.
Converting from a path to a canonical path makes it absolute (usually tack on the current working directory so e.g. ./file.txt
becomes c:/temp/file.txt
). The canonical path of a file just "purifies" the path, removing and resolving stuff like ..\
and resolving symlinks (on unixes).
Also note the following example with nio.Paths:
String canonical_path_string = "C:\\Windows\\System32\\";
String absolute_path_string = "C:\\Windows\\System32\\drivers\\..\\";
System.out.println(Paths.get(canonical_path_string).getParent());
System.out.println(Paths.get(absolute_path_string).getParent());
While both paths refer to the same location, the output will be quite different:
C:\Windows
C:\Windows\System32\drivers
You must have got the idea why you are getting this problem after going through above answers.
self.send_header('Access-Control-Allow-Origin', '*')
You just have to add the above line in your server side.
I've tried this:
<a href="whatsapp://send?abid=phonenumber&text=Hello%2C%20World!">whatsapp</a>
changing 'phonenumber' into a specific phonenumber. This doesn't work completely, but when they click on the link it does open whatsapp and if they click on a contact the message is filled in.
If you want to open a specific person in chat you can, but without text filled in.
<a href="intent://send/phonenumber#Intent;scheme=smsto;package=com.whatsapp;action=android.intent.action.SENDTO;end">test</a>
You'll probably have to make a choice between the two.
some links to help you Sharing link on WhatsApp from mobile website (not application) for Android https://www.whatsapp.com/faq/nl/android/28000012
Hope this helps
(I tested this with google chrome on an android phone)
The following is the most advanced method I have found, and I have already tried some others in the past. It is valid to ensure to get the IP address of a visitor (but please note that any hacker could falsify the IP address easily).
function get_ip_address() {
// Check for shared Internet/ISP IP
if (!empty($_SERVER['HTTP_CLIENT_IP']) && validate_ip($_SERVER['HTTP_CLIENT_IP'])) {
return $_SERVER['HTTP_CLIENT_IP'];
}
// Check for IP addresses passing through proxies
if (!empty($_SERVER['HTTP_X_FORWARDED_FOR'])) {
// Check if multiple IP addresses exist in var
if (strpos($_SERVER['HTTP_X_FORWARDED_FOR'], ',') !== false) {
$iplist = explode(',', $_SERVER['HTTP_X_FORWARDED_FOR']);
foreach ($iplist as $ip) {
if (validate_ip($ip))
return $ip;
}
}
else {
if (validate_ip($_SERVER['HTTP_X_FORWARDED_FOR']))
return $_SERVER['HTTP_X_FORWARDED_FOR'];
}
}
if (!empty($_SERVER['HTTP_X_FORWARDED']) && validate_ip($_SERVER['HTTP_X_FORWARDED']))
return $_SERVER['HTTP_X_FORWARDED'];
if (!empty($_SERVER['HTTP_X_CLUSTER_CLIENT_IP']) && validate_ip($_SERVER['HTTP_X_CLUSTER_CLIENT_IP']))
return $_SERVER['HTTP_X_CLUSTER_CLIENT_IP'];
if (!empty($_SERVER['HTTP_FORWARDED_FOR']) && validate_ip($_SERVER['HTTP_FORWARDED_FOR']))
return $_SERVER['HTTP_FORWARDED_FOR'];
if (!empty($_SERVER['HTTP_FORWARDED']) && validate_ip($_SERVER['HTTP_FORWARDED']))
return $_SERVER['HTTP_FORWARDED'];
// Return unreliable IP address since all else failed
return $_SERVER['REMOTE_ADDR'];
}
/**
* Ensures an IP address is both a valid IP address and does not fall within
* a private network range.
*/
function validate_ip($ip) {
if (strtolower($ip) === 'unknown')
return false;
// Generate IPv4 network address
$ip = ip2long($ip);
// If the IP address is set and not equivalent to 255.255.255.255
if ($ip !== false && $ip !== -1) {
// Make sure to get unsigned long representation of IP address
// due to discrepancies between 32 and 64 bit OSes and
// signed numbers (ints default to signed in PHP)
$ip = sprintf('%u', $ip);
// Do private network range checking
if ($ip >= 0 && $ip <= 50331647)
return false;
if ($ip >= 167772160 && $ip <= 184549375)
return false;
if ($ip >= 2130706432 && $ip <= 2147483647)
return false;
if ($ip >= 2851995648 && $ip <= 2852061183)
return false;
if ($ip >= 2886729728 && $ip <= 2887778303)
return false;
if ($ip >= 3221225984 && $ip <= 3221226239)
return false;
if ($ip >= 3232235520 && $ip <= 3232301055)
return false;
if ($ip >= 4294967040)
return false;
}
return true;
}
Double d = 1000d;
System.out.println("Normal value :"+d);
System.out.println("Without decimal points :"+d.longValue());
Use numpy. array. flatten() to convert a 2D NumPy array into a 1D array
print(array_2d)
array_1d = array_2d. flatten() flatten array_2d
print(array_1d)
Many answers to the question already. For me the problem was two fold:
when I expand my routes:
devise_for :users do
get '/users/sign_out' => 'devise/sessions#destroy'
end
I was getting warning that this is depreciated so I have replaced it with:
devise_scope :users do
get '/users/sign_out' => 'devise/sessions#destroy'
end
I thought I will remove my jQuery. Bad choice. Devise is using jQuery to "fake" DELETE request and send it as GET. Therefore you need to:
//= require jquery
//= require jquery_ujs
and of course same link as many mentioned before:
<%= link_to "Sign out", destroy_user_session_path, :method => :delete %>
Your problem might be here:
OR
(
SELECT m.ResourceNo FROM JobMember m
JOIN JobTask t ON t.JobTaskNo = m.JobTaskNo
WHERE t.TaskManagerNo = @UserResourceNo
OR
t.AlternateTaskManagerNo = @UserResourceNo
)
try changing to
OR r.ResourceNo IN
(
SELECT m.ResourceNo FROM JobMember m
JOIN JobTask t ON t.JobTaskNo = m.JobTaskNo
WHERE t.TaskManagerNo = @UserResourceNo
OR
t.AlternateTaskManagerNo = @UserResourceNo
)
Test String test string (67)
from which you need to get the String which is nested in-between two Strings.
String str = "test string (67) and (77)", open = "(", close = ")";
Listed some possible ways: Simple Generic Solution:
String subStr = str.substring(str.indexOf( open ) + 1, str.indexOf( close ));
System.out.format("String[%s] Parsed IntValue[%d]\n", subStr, Integer.parseInt( subStr ));
Apache Software Foundation
commons.lang3
.
StringUtils
class substringBetween()
function gets the String that is nested in between two Strings. Only the first match is returned.
String substringBetween = StringUtils.substringBetween(subStr, open, close);
System.out.println("Commons Lang3 : "+ substringBetween);
Replaces the given String, with the String which is nested in between two Strings. #395
Pattern with Regular-Expressions:
(\()(.*?)(\)).*
The Dot Matches (Almost) Any Character
.? = .{0,1}, .* = .{0,}, .+ = .{1,}
String patternMatch = patternMatch(generateRegex(open, close), str);
System.out.println("Regular expression Value : "+ patternMatch);
Regular-Expression with the utility class RegexUtils
and some functions.
Pattern.DOTALL
: Matches any character, including a line terminator.
Pattern.MULTILINE
: Matches entire String from the start^
till end$
of the input sequence.
public static String generateRegex(String open, String close) {
return "(" + RegexUtils.escapeQuotes(open) + ")(.*?)(" + RegexUtils.escapeQuotes(close) + ").*";
}
public static String patternMatch(String regex, CharSequence string) {
final Pattern pattern = Pattern.compile(regex, Pattern.DOTALL);
final Matcher matcher = pattern .matcher(string);
String returnGroupValue = null;
if (matcher.find()) { // while() { Pattern.MULTILINE }
System.out.println("Full match: " + matcher.group(0));
System.out.format("Character Index [Start:End]«[%d:%d]\n",matcher.start(),matcher.end());
for (int i = 1; i <= matcher.groupCount(); i++) {
System.out.println("Group " + i + ": " + matcher.group(i));
if( i == 2 ) returnGroupValue = matcher.group( 2 );
}
}
return returnGroupValue;
}
Lalith's answer is correct.
You may also try this approach:
button.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
invalidateOptionsMenu();
}
});
@Override
public boolean onPrepareOptionsMenu(Menu menu) {
MenuItem settingsItem = menu.findItem(R.id.action_settings);
// set your desired icon here based on a flag if you like
settingsItem.setIcon(ContextCompat.getDrawable(this, R.drawable.ic_launcher));
return super.onPrepareOptionsMenu(menu);
}
There are several ways to create an array of strings in C. If all the strings are going to be the same length (or at least have the same maximum length), you simply declare a 2-d array of char and assign as necessary:
char strs[NUMBER_OF_STRINGS][STRING_LENGTH+1];
...
strcpy(strs[0], aString); // where aString is either an array or pointer to char
strcpy(strs[1], "foo");
You can add a list of initializers as well:
char strs[NUMBER_OF_STRINGS][STRING_LENGTH+1] = {"foo", "bar", "bletch", ...};
This assumes the size and number of strings in the initializer match up with your array dimensions. In this case, the contents of each string literal (which is itself a zero-terminated array of char) are copied to the memory allocated to strs. The problem with this approach is the possibility of internal fragmentation; if you have 99 strings that are 5 characters or less, but 1 string that's 20 characters long, 99 strings are going to have at least 15 unused characters; that's a waste of space.
Instead of using a 2-d array of char, you can store a 1-d array of pointers to char:
char *strs[NUMBER_OF_STRINGS];
Note that in this case, you've only allocated memory to hold the pointers to the strings; the memory for the strings themselves must be allocated elsewhere (either as static arrays or by using malloc()
or calloc()
). You can use the initializer list like the earlier example:
char *strs[NUMBER_OF_STRINGS] = {"foo", "bar", "bletch", ...};
Instead of copying the contents of the string constants, you're simply storing the pointers to them. Note that string constants may not be writable; you can reassign the pointer, like so:
strs[i] = "bar";
strs[i] = "foo";
But you may not be able to change the string's contents; i.e.,
strs[i] = "bar";
strcpy(strs[i], "foo");
may not be allowed.
You can use malloc()
to dynamically allocate the buffer for each string and copy to that buffer:
strs[i] = malloc(strlen("foo") + 1);
strcpy(strs[i], "foo");
BTW,
char (*a[2])[14];
Declares a as a 2-element array of pointers to 14-element arrays of char.
if(str.isEmpty() || str==null){
do whatever you want
}
Use VisualTreeHelper.GetParent or the recursive function below to find the parent window.
public static Window FindParentWindow(DependencyObject child)
{
DependencyObject parent= VisualTreeHelper.GetParent(child);
//CHeck if this is the end of the tree
if (parent == null) return null;
Window parentWindow = parent as Window;
if (parentWindow != null)
{
return parentWindow;
}
else
{
//use recursion until it reaches a Window
return FindParentWindow(parent);
}
}
It is my solution for the same problem
To delete all files and directories within the current directory:
find . -mtime +3 | xargs rm -Rf
Or alternatively, more in line with the OP's original command:
find . -mtime +3 -exec rm -Rf -- {} \;
These are properties. You would use them like so:
Tom.Title = "Accountant";
string desc = Tom.Description;
But considering they are declared protected
their visibility may be a concern.
It sounds like you've got it the wrong way round. If your existing data is in MM/DD/YYYY format, then you want:
select to_date(date_column,'MM/DD/YYYY') from table;
to convert the existing data to DATE values. (I do wonder why they're not stored as dates, to be honest...)
If you want to perform the conversion in one step, you might want:
select to_char(to_date(date_column,'MM/DD/YYYY'), 'YYYY-MM-DD') from table;
In other words, for each row, parse it in MM/DD/YYYY format, then reformat it to YYYY-MM-DD format.
(I'd still suggest trying to keep data in its "natural" type though, rather than storing it as text in the first place.)
Still, on Windows 7, BAT files have also this difference : If you ever create files TEST.BAT and TEST.CMD in the same directory, and you run TEST in that directory, it'll run the BAT file.
C:\>echo %PATHEXT%
.COM;.EXE;.BAT;.CMD;.VBS;.VBE;.JS;.JSE;.WSF;.WSH;.MSC
C:\Temp>echo echo bat > test.bat
C:\Temp>echo echo cmd > test.cmd
C:\Temp>test
C:\Temp>echo bat
bat
C:\Temp>
http://content.hccfl.edu/pollock/Unix/FindCmd.htm
The linux/unix "find" command.
In general you can easily write the Where-Condition like this:
select * from tab1
where (col1, col2) in (select col1, col2 from tab2)
Note
Oracle ignores rows where one or more of the selected columns is NULL. In these cases you probably want to make use of the NVL-Funktion to map NULL to a special value (that should not be in the values):
select * from tab1
where (col1, NVL(col2, '---') in (select col1, NVL(col2, '---') from tab2)
You've already got some good answers, but I thought you might be interested in a bit of the background too.
Firstly you're missing the quotes. It should be:
"hello".encode("hex")
Secondly this codec hasn't been ported to Python 3.1. See here. It seems that they haven't yet decided whether or not these codecs should be included in Python 3 or implemented in a different way.
If you look at the diff file attached to that bug you can see the proposed method of implementing it:
import binascii
output = binascii.b2a_hex(input)
You should add this:
android:focusableInTouchMode="true"
To further expand on BIGNUM's post - Ideally you want a solution that will simulate the conditions you will see in production and modifying your code won't do that and could be dangerous if you forget to take the code out before you deploy it.
You will need a self-signed certificate of some sort. If you know what you're doing you can use the binary BIGNUM posted, but if not you can go hunting for the certificate. If you're using IIS Express you will have one of these already, you'll just have to find it. Open Firefox or whatever browser you like and go to your dev website. You should be able to view the certificate information from the URL bar and depending on your browser you should be able to export the certificate to a file.
Next, open MMC.exe, and add the Certificate snap-in. Import your certificate file into the Trusted Root Certificate Authorities store and that's all you should need. It's important to make sure it goes into that store and not some other store like 'Personal'. If you're unfamiliar with MMC or certificates, there are numerous websites with information how to do this.
Now, your computer as a whole will implicitly trust any certificates that it has generated itself and you won't need to add code to handle this specially. When you move to production it will continue to work provided you have a proper valid certificate installed there. Don't do this on a production server - that would be bad and it won't work for any other clients other than those on the server itself.
$('#el').prop('disabled', function(i, v) { return !v; });
The .prop()
method accepts two arguments:
So in this case, I used a function that supplied me the index (i) and the current value (v), then I returned the opposite of the current value, so the property state is reversed.
It exists, and it's built into Eclipse! Go to the Remote Systems view, and you'll see an entry for "Local". Right-click "Local Shells" and choose "Launch Shell."
You can't launch it directly from the project navigator. But you can right-click in the navigator and choose "Show in Remote Systems view". From there you can right-click the parent folder and choose "Launch Shell."
Aptana also has a Terminal view, and a command to open the selected file in the terminal.
I found this post very helpful as I needed to investigate dependencies from a 3rd party supplied library (32 vs 64 bit execution path(s)).
I put together a Q&D recursing bash script based on the 'readelf -d' suggestion on a RHEL 6 distro.
It is very basic and will test every dependency every time even if it might have been tested before (i.e very verbose). Output is very basic too.
#! /bin/bash
recurse ()
# Param 1 is the nuumber of spaces that the output will be prepended with
# Param 2 full path to library
{
#Use 'readelf -d' to find dependencies
dependencies=$(readelf -d ${2} | grep NEEDED | awk '{ print $5 }' | tr -d '[]')
for d in $dependencies; do
echo "${1}${d}"
nm=${d##*/}
#libstdc++ hack for the '+'-s
nm1=${nm//"+"/"\+"}
# /lib /lib64 /usr/lib and /usr/lib are searched
children=$(locate ${d} | grep -E "(^/(lib|lib64|usr/lib|usr/lib64)/${nm1})")
rc=$?
#at least locate... didn't fail
if [ ${rc} == "0" ] ; then
#we have at least one dependency
if [ ${#children[@]} -gt 0 ]; then
#check the dependeny's dependencies
for c in $children; do
recurse " ${1}" ${c}
done
else
echo "${1}no children found"
fi
else
echo "${1}locate failed for ${d}"
fi
done
}
# Q&D -- recurse needs 2 params could/should be supplied from cmdline
recurse "" !!full path to library you want to investigate!!
redirect the output to a file and grep for 'found' or 'failed'
Use and modify, at your own risk of course, as you wish.
This is a US phone formatter that works on more versions of numbers than any of the current answers.
$numbers = explode("\n", '(111) 222-3333
((111) 222-3333
1112223333
111 222-3333
111-222-3333
(111)2223333
+11234567890
1-8002353551
123-456-7890 -Hello!
+1 - 1234567890
');
foreach($numbers as $number)
{
print preg_replace('~.*(\d{3})[^\d]{0,7}(\d{3})[^\d]{0,7}(\d{4}).*~', '($1) $2-$3', $number). "\n";
}
And here is a breakdown of the regex:
Cell: +1 999-(555 0001)
.* zero or more of anything "Cell: +1 "
(\d{3}) three digits "999"
[^\d]{0,7} zero or up to 7 of something not a digit "-("
(\d{3}) three digits "555"
[^\d]{0,7} zero or up to 7 of something not a digit " "
(\d{4}) four digits "0001"
.* zero or more of anything ")"
Updated: March 11, 2015 to use {0,7}
instead of {,7}
inside the Android manifest file of your project, find the activity declaration of whose you want to fix the orientation and add the following piece of code ,
android:screenOrientation="landscape"
for landscape orientation and for portrait add the following code,
android:screenOrientation="portrait"
I figured out what the issue was : missing quotes in the testEcho() parameter. This is how I got the call to work:
myWebView.loadUrl("javascript:testEcho('Hello World!')");
Your javascript is executed before the HTML is generated, so it doesn't "see" the ungenerated INPUT elements. For jQuery, you would either stick the Javascript at the end of the HTML or wrap it like this:
<script type="text/javascript"> $(function() { //jQuery trick to say after all the HTML is parsed. $("input[type=radio]").click(function() { var total = 0; $("input[type=radio]:checked").each(function() { total += parseFloat($(this).val()); }); $("#totalSum").val(total); }); }); </script>
EDIT: This code works for me
<!DOCTYPE html> <html> <head> <meta charset="utf-8"> </head> <body> <strong>Choose a base package:</strong> <input id="item_0" type="radio" name="pkg" value="1942" />Base Package 1 - $1942 <input id="item_1" type="radio" name="pkg" value="2313" />Base Package 2 - $2313 <input id="item_2" type="radio" name="pkg" value="2829" />Base Package 3 - $2829 <strong>Choose an add on:</strong> <input id="item_10" type="radio" name="ext" value="0" />No add-on - +$0 <input id="item_12" type="radio" name="ext" value="2146" />Add-on 1 - (+$2146) <input id="item_13" type="radio" name="ext" value="2455" />Add-on 2 - (+$2455) <input id="item_14" type="radio" name="ext" value="2764" />Add-on 3 - (+$2764) <input id="item_15" type="radio" name="ext" value="3073" />Add-on 4 - (+$3073) <input id="item_16" type="radio" name="ext" value="3382" />Add-on 5 - (+$3382) <input id="item_17" type="radio" name="ext" value="3691" />Add-on 6 - (+$3691) <strong>Your total is:</strong> <input id="totalSum" type="text" name="totalSum" readonly="readonly" size="5" value="" /> <script src="http://ajax.googleapis.com/ajax/libs/jquery/1.10.2/jquery.min.js"></script> <script type="text/javascript"> $("input[type=radio]").click(function() { var total = 0; $("input[type=radio]:checked").each(function() { total += parseFloat($(this).val()); }); $("#totalSum").val(total); }); </script> </body> </html>
When TOP
is used with INSERT
, UPDATE
, MERGE
, or DELETE
, the referenced rows are not arranged in any order and the ORDER BY clause can not be directly specified in these statements. If you need to use TOP to insert, delete, or modify rows in a meaningful chronological order, you must use TOP
together with an ORDER BY
clause that is specified in a subselect statement.
TOP
cannot be used in an UPDATE
and DELETE
statements on partitioned views.
TOP
cannot be combined with OFFSET
and FETCH
in the same query expression (in the same query scope). For more information, see http://technet.microsoft.com/en-us/library/ms189463.aspx
type sqlplus/"as sysdba" in cmd for connection in cmd prompt
<activity android:name=".yourActivity" android:label="@string/yourText" />
Put this code into your android manifest file and it should set the title of the action bar to what ever you want!
If you're one the commandline shell, you can do this very quickly. Just fill in "dbname" :D
DB="dbname"
(
echo 'ALTER DATABASE `'"$DB"'` CHARACTER SET utf8 COLLATE utf8_general_ci;'
mysql "$DB" -e "SHOW TABLES" --batch --skip-column-names \
| xargs -I{} echo 'ALTER TABLE `'{}'` CONVERT TO CHARACTER SET utf8 COLLATE utf8_general_ci;'
) \
| mysql "$DB"
DB="dbname"; ( echo 'ALTER DATABASE `'"$DB"'` CHARACTER SET utf8 COLLATE utf8_general_ci;'; mysql "$DB" -e "SHOW TABLES" --batch --skip-column-names | xargs -I{} echo 'ALTER TABLE `'{}'` CONVERT TO CHARACTER SET utf8 COLLATE utf8_general_ci;' ) | mysql "$DB"
When using javascript:
in navigation the return value of the executed script, if there is one, becomes the content of a new document which is displayed in the browser. The void
operator in JavaScript causes the return value of the expression following it to return undefined, which prevents this action from happening. You can try it yourself, copy the following into the address bar and press return:
javascript:"hello"
The result is a new page with only the word "hello". Now change it to:
javascript:void "hello"
...nothing happens.
When you write javascript:
on its own there's no script being executed, so the result of that script execution is also undefined, so the browser does nothing. This makes the following more or less equivalent:
javascript:undefined;
javascript:void 0;
javascript:
With the exception that undefined can be overridden by declaring a variable with the same name. Use of void 0
is generally pointless, and it's basically been whittled down from void functionThatReturnsSomething()
.
As others have mentioned, it's better still to use return false;
in the click handler than use the javascript:
protocol.
+=
in JavaScript (as well as in many other languages) adds the right hand side to the variable on the left hand side, storing the result in that variable. Your example of 1 +=2
therefore does not make sense. Here is an example:
var x = 5;
x += 4; // x now equals 9, same as writing x = x + 4;
x -= 3; // x now equals 6, same as writing x = x - 3;
x *= 2; // x now equals 12, same as writing x = x * 2;
x /= 3; // x now equals 4, same as writing x = x / 3;
In your specific example the loop is summing the numbers in the array data
.
Especially if you use a copy-on-write filesystem like BTRFS or ZFS, rsync
is much better.
I use BTRFS, and I have this in my ~/.bashrc
:
alias cp="rsync -ah --inplace --no-whole-file --info=progress2"
The important flag here for CoW FSs like BTRFS is --inplace
because it only copies the changed part of the files, doesn't create new for small changes between files inodes, etc. See this.
you can use attribute data-html="true"
:
<a href="#" id="example" rel="popover"
data-content="<div>This <b>is</b> your div content</div>"
data-html="true" data-original-title="A Title">popover</a>
What's wrong with just invoking the commands?
foo:
echo line1
echo line2
....
And for your second question, you need to escape the $
by using $$
instead, i.e. bash -c '... echo $$a ...'
.
EDIT: Your example could be rewritten to a single line script like this:
gcc $(for i in `find`; do echo $i; done)
Two alternatives for closing the current window are ZZ
and ZQ
, which will, respectively, save and not save changes to the displayed buffer.
All other answers to this 3-year old question require CSS3 (or SVG). However, it can also be done with nothing but lame old CSS2:
.crossed {_x000D_
position: relative;_x000D_
width: 300px;_x000D_
height: 300px;_x000D_
}_x000D_
_x000D_
.crossed:before {_x000D_
content: '';_x000D_
position: absolute;_x000D_
left: 0;_x000D_
right: 0;_x000D_
top: 1px;_x000D_
bottom: 1px;_x000D_
border-width: 149px;_x000D_
border-style: solid;_x000D_
border-color: black white;_x000D_
}_x000D_
_x000D_
.crossed:after {_x000D_
content: '';_x000D_
position: absolute;_x000D_
left: 1px;_x000D_
right: 1px;_x000D_
top: 0;_x000D_
bottom: 0;_x000D_
border-width: 149px;_x000D_
border-style: solid;_x000D_
border-color: white transparent;_x000D_
}
_x000D_
<div class='crossed'></div>
_x000D_
Rather than actually drawing diagonal lines, it occurred to me we can instead color the so-called negative space triangles adjacent to where we want to see these lines. The trick I came up with to accomplish this exploits the fact that multi-colored CSS borders are bevelled diagonally:
.borders {_x000D_
width: 200px;_x000D_
height: 100px;_x000D_
background-color: black;_x000D_
border-width: 40px;_x000D_
border-style: solid;_x000D_
border-color: red blue green yellow;_x000D_
}
_x000D_
<div class='borders'></div>
_x000D_
To make things fit the way we want, we choose an inner rectangle with dimensions 0 and LINE_THICKNESS pixels, and another one with those dimensions reversed:
.r1 { width: 10px;_x000D_
height: 0;_x000D_
border-width: 40px;_x000D_
border-style: solid;_x000D_
border-color: red blue;_x000D_
margin-bottom: 10px; }_x000D_
.r2 { width: 0;_x000D_
height: 10px;_x000D_
border-width: 40px;_x000D_
border-style: solid;_x000D_
border-color: blue transparent; }
_x000D_
<div class='r1'></div><div class='r2'></div>
_x000D_
Finally, use the :before
and :after
pseudo-selectors and position relative/absolute as a neat way to insert the borders of both of the above rectangles on top of each other into your HTML element of choice, to produce a diagonal cross. Note that results probably look best with a thin LINE_THICKNESS value, such as 1px.
One thing i would like to add
In a signed int
, which is the default value in mysql
, 1 bit
will be used to represent sign
. -1 for negative and 0 for positive.
So if your application insert only positive value it should better specify unsigned.
In PLSQL block, columns of select statements must be assigned to variables, which is not the case in SQL statements.
The second BEGIN's SQL statement doesn't have INTO clause and that caused the error.
DECLARE
PROD_ROW_ID VARCHAR (10) := NULL;
VIS_ROW_ID NUMBER;
DSC VARCHAR (512);
BEGIN
SELECT ROW_ID
INTO VIS_ROW_ID
FROM SIEBEL.S_PROD_INT
WHERE PART_NUM = 'S0146404';
BEGIN
SELECT RTRIM (VIS.SERIAL_NUM)
|| ','
|| RTRIM (PLANID.DESC_TEXT)
|| ','
|| CASE
WHEN PLANID.HIGH = 'TEST123'
THEN
CASE
WHEN TO_DATE (PROD.START_DATE) + 30 > SYSDATE
THEN
'Y'
ELSE
'N'
END
ELSE
'N'
END
|| ','
|| 'GB'
|| ','
|| RTRIM (TO_CHAR (PROD.START_DATE, 'YYYY-MM-DD'))
INTO DSC
FROM SIEBEL.S_LST_OF_VAL PLANID
INNER JOIN SIEBEL.S_PROD_INT PROD
ON PROD.PART_NUM = PLANID.VAL
INNER JOIN SIEBEL.S_ASSET NETFLIX
ON PROD.PROD_ID = PROD.ROW_ID
INNER JOIN SIEBEL.S_ASSET VIS
ON VIS.PROM_INTEG_ID = PROD.PROM_INTEG_ID
INNER JOIN SIEBEL.S_PROD_INT VISPROD
ON VIS.PROD_ID = VISPROD.ROW_ID
WHERE PLANID.TYPE = 'Test Plan'
AND PLANID.ACTIVE_FLG = 'Y'
AND VISPROD.PART_NUM = VIS_ROW_ID
AND PROD.STATUS_CD = 'Active'
AND VIS.SERIAL_NUM IS NOT NULL;
END;
END;
/
References
http://docs.oracle.com/cd/E11882_01/appdev.112/e25519/static.htm#LNPLS00601 http://docs.oracle.com/cd/B19306_01/appdev.102/b14261/selectinto_statement.htm#CJAJAAIG http://pls-00428.ora-code.com/
[lower bound : upper bound : step size]
I- Convert upper bound
and lower bound
into common signs.
II- Then check if the step size
is a positive or a negative value.
(i) If the step size
is a positive value, upper bound
should be greater than lower bound
, otherwise empty string
is printed. For example:
s="Welcome"
s1=s[0:3:1]
print(s1)
The output:
Wel
However if we run the following code:
s="Welcome"
s1=s[3:0:1]
print(s1)
It will return an empty string.
(ii) If the step size
if a negative value, upper bound
should be lesser than lower bound
, otherwise empty string
will be printed. For example:
s="Welcome"
s1=s[3:0:-1]
print(s1)
The output:
cle
But if we run the following code:
s="Welcome"
s1=s[0:5:-1]
print(s1)
The output will be an empty string.
Thus in the code:
str = 'abcd'
l = len(str)
str2 = str[l-1:0:-1] #str[3:0:-1]
print(str2)
str2 = str[l-1:-1:-1] #str[3:-1:-1]
print(str2)
In the first str2=str[l-1:0:-1]
, the upper bound
is lesser than the lower bound
, thus dcb
is printed.
However in str2=str[l-1:-1:-1]
, the upper bound
is not less than the lower bound
(upon converting lower bound
into negative value which is -1
: since index
of last element is -1 as well as 3).
If you want to do it using Pentaho DI, you can use "Modified JavaScript" Step and write the below function:
dateAdd(d1, "d", -7); // d1 is the current date and "d" is the date identifier
Check the image below: [Assuming current date is : 22 December 2014]
Hope it helps :)
If you are using c# on the desktop, you can use SimpleMapi. That way it will be sent using the default mail client, and the user has the option of reviewing the message before sending, just like mailto:
.
To use it you add the Simple-MAPI.NET package (it's 13Kb), and run:
var mapi = new SimpleMapi();
mapi.AddRecipient(null, address, false);
mapi.Attach(path);
//mapi.Logon(ParentForm.Handle); //not really necessary
mapi.Send(subject, body, true);
For SDK version 23 and above, the same RuntimeException is thrown if you are using AppCompatActivity to extend your activity. It will not happen if your activity derives directly from Activity.
This is a known issue on google as mentioned in https://code.google.com/p/android/issues/detail?id=186440
The work around provided for this is to use supportRequestWindowFeature() method instead of using requestFeature().
Please upvote if it solves your problem.
The problem in my case was that I was running the command inside a python virtual environment and it didn't had the path to /usr/local/mysql/bin though I have put it in the .bash_profile file. Just exporting the path in the virtual env worked for me.
For your info sql_config resides inside bin directory.
Here's what I've used in past projects:
var myDate = new Date();
var tzo = (myDate.getTimezoneOffset()/60)*(-1);
//get server date value here, the parseInvariant is from MS Ajax, you would need to do something similar on your own
myDate = new Date.parseInvariant('<%=DataCurrentDate%>', 'yyyyMMdd hh:mm:ss');
myDate.setHours(myDate.getHours() + tzo);
//here you would have to get a handle to your span / div to set. again, I'm using MS Ajax's $get
var dateSpn = $get('dataDate');
dateSpn.innerHTML = myDate.localeFormat('F');
I tried the above methods, and no one can show the alert view, only when I put the presentViewController:
method in a dispatch_async
sentence:
dispatch_async(dispatch_get_main_queue(), ^ {
[self presentViewController:alert animated:YES completion:nil];
});
Refer to Alternative to UIAlertView for iOS 9?.
You need a single stream, opened for both reading and writing.
FileStream fileStream = new FileStream(
@"c:\words.txt", FileMode.OpenOrCreate,
FileAccess.ReadWrite, FileShare.None);
I'm not aware of OpenCV but looking at the problem logically I think you could differentiate between bottle and can by changing the image which you are looking for i.e. Coca Cola. You should incorporate till top portion of can as in case of can there is silver lining at top of coca cola and in case of bottle there will be no such silver lining.
But obviously this algorithm will fail in cases where top of can is hidden, but in such case even human will not be able to differentiate between the two (if only coca cola portion of bottle/can is visible)
Try this way,hope this will help you to solve your problem.
main.xml
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="vertical"
android:gravity="center">
<WebView
android:id="@+id/webView"
android:layout_width="match_parent"
android:layout_height="match_parent"/>
</LinearLayout>
MyActivity.java
public class MyActivity extends Activity {
private WebView webView;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.main);
webView = (WebView) findViewById(R.id.webView);
webView.loadData("<a href=\"tel:+1800229933\">Call us free!</a>", "text/html", "utf-8");
}
}
Please add this permission in AndroidManifest.xml
<uses-permission android:name="android.permission.CALL_PHONE"/>
In a more concise way, you can do:
LogEntries logs = driver.manage().logs().get(LogType.BROWSER);
For me it worked wonderfully for catching JS errors in console. Then you can add some verification for its size. For example, if it is > 0, add some error output.
In IntelliJ, if you want to pass args parameters to the main method.
go to-> edit configurations
program arguments: 5 10 25
you need to pass the arguments through space separated and click apply and save.
now run the program if you print
System.out.println(args[0]);
System.out.println(args[1]);
System.out.println(args[2]);
Out put is 5 10 25
You will find how many threads you can run on your machine by running htop or ps command that returns number of process on your machine.
You can use man page about 'ps' command.
man ps
If you want to calculate number of all users process, you can use one of these commands:
ps -aux| wc -l
ps -eLf | wc -l
Calculating number of an user process:
ps --User root | wc -l
Also, you can use "htop" [Reference]:
Installing on Ubuntu or Debian:
sudo apt-get install htop
Installing on Redhat or CentOS:
yum install htop
dnf install htop [On Fedora 22+ releases]
If you want to compile htop from source code, you will find it here.
Is it possible that the date could actually be outside that range? Does it come from user input? If the answer to either of these questions is yes, then you should always check - otherwise you're leaving your application prone to error.
You can format your date for inclusion in an SQL statement rather easily:
var sqlFormattedDate = myDateTime.Date.ToString("yyyy-MM-dd HH:mm:ss");
Use this attribute: android:layout_centerHorizontal="true"
n = int(input("Input list lenght: "))
lista = []
for i in range (1,n+1):
print ("A[",i,"]=")
ele = int(input())
lista.append(ele)
print("The list is: ",lista)
invers = True
while invers == True:
invers = False
for i in range (n-1):
if lista[i]>lista[i+1]:
c=lista[i+1]
lista[i+1]=lista[i]
lista[i]=c
invers = True
print("The sorted list is: ",lista)
It seems that using mongoose there is a limit of more than 1000 documents, when using
Potato.collection.insert(potatoBag, onInsert);
You can use:
var bulk = Model.collection.initializeOrderedBulkOp();
async.each(users, function (user, callback) {
bulk.insert(hash);
}, function (err) {
var bulkStart = Date.now();
bulk.execute(function(err, res){
if (err) console.log (" gameResult.js > err " , err);
console.log (" gameResult.js > BULK TIME " , Date.now() - bulkStart );
console.log (" gameResult.js > BULK INSERT " , res.nInserted)
});
});
But this is almost twice as fast when testing with 10000 documents:
function fastInsert(arrOfResults) {
var startTime = Date.now();
var count = 0;
var c = Math.round( arrOfResults.length / 990);
var fakeArr = [];
fakeArr.length = c;
var docsSaved = 0
async.each(fakeArr, function (item, callback) {
var sliced = arrOfResults.slice(count, count+999);
sliced.length)
count = count +999;
if(sliced.length != 0 ){
GameResultModel.collection.insert(sliced, function (err, docs) {
docsSaved += docs.ops.length
callback();
});
}else {
callback()
}
}, function (err) {
console.log (" gameResult.js > BULK INSERT AMOUNT: ", arrOfResults.length, "docsSaved " , docsSaved, " DIFF TIME:",Date.now() - startTime);
});
}
TRY:
SELECT EXTRACT(YEAR FROM (STR_TO_DATE(subdateshow, '%d/%m/%Y')));
I prefer to use an angular filter.
app.filter('num', function() {
return function(input) {
return parseInt(input, 10);
};
});
then you can use this in the dom:
{{'10'|num}}
Here is a fiddle.
Hope this helped!
try this:
var result = from r in myDataTable.AsEnumerable()
where r.Field<string>("Name") != "n/a" &&
r.Field<string>("Name") != "" select r;
DataTable dtResult = result.CopyToDataTable();
Notice that there is a difference between
set encoding
and
set fileencoding
In the first case, you'll change the output encoding that is shown in the terminal. In the second case, you'll change the output encoding of the file that is written.
On Windows7 all the databases are referred by a number in the file named pg_database
under C:\Program Files (x86)\PostgreSQL\8.2\data\global
. Then you should search for the folder name by that number under C:\Program Files (x86)\PostgreSQL\8.2\data\base
. That is the content of the database.
There are also these 'ways':
>>> dict.fromkeys(range(1, 4))
{1: None, 2: None, 3: None}
>>> dict(zip(range(1, 4), range(1, 4)))
{1: 1, 2: 2, 3: 3}
For static assertions, C++11 introduced decltype
which is quite useful in certain scenarios.
I like to use a TreeWalker if the set of elements are children of a root node.
Use /bin/sh
. Create a small shell script that sets the variables, and then parse the template using the shell itself. Like so (edit to handle newlines correctly):
the number is ${i}
the word is ${word}
#!/bin/sh
#Set variables
i=1
word="dog"
#Read in template one line at the time, and replace variables (more
#natural (and efficient) way, thanks to Jonathan Leffler).
while read line
do
eval echo "$line"
done < "./template.txt"
#sh script.sh
the number is 1
the word is dog
Want to center an image? Very easy, Bootstrap comes with two classes, .center-block
and text-center
.
Use the former in the case of your image being a BLOCK
element, for example, adding img-responsive
class to your img
makes the img
a block element. You should know this if you know how to navigate in the web console and see applied styles to an element.
Don't want to use a class? No problem, here is the CSS bootstrap uses. You can make a custom class or write a CSS rule for the element to match the Bootstrap class.
// In case you're dealing with a block element apply this to the element itself
.center-block {
margin-left:auto;
margin-right:auto;
display:block;
}
// In case you're dealing with a inline element apply this to the parent
.text-center {
text-align:center
}
@ModelAttribute simply binds the value from jsp fields to Pojo calss to perform our logic in controller class. If you are familiar with struts, then this is like populating the formbean object upon submission.
As above is great example and works great:
Typeface font = Typeface.createFromAsset(getAssets(), "fontawesome-webfont.ttf" );
Button button = (Button)findViewById( R.id.like );
button.setTypeface(font);
BUT! > this will work if string inside button you set from xml:
<string name="icon_heart"></string>
button.setText(getString(R.string.icon_heart));
If you need to add it dynamically can use this:
String iconHeart = "";
String valHexStr = iconHeart.replace("&#x", "").replace(";", "");
long valLong = Long.parseLong(valHexStr,16);
button.setText((char) valLong + "");
We can use following one liner in Java 8:
List<String> list = set.stream().collect(Collectors.toList());
Here is one small example:
public static void main(String[] args) {
Set<String> set = new TreeSet<>();
set.add("A");
set.add("B");
set.add("C");
List<String> list = set.stream().collect(Collectors.toList());
}
You still need to use their proprietary filters as of IE9 beta 1.
It has to be a constant - the value has to be computable at the time that the procedure is created, and that one computation has to provide the value that will always be used.
Look at the definition of sys.all_parameters
:
default_value
sql_variant
Ifhas_default_value
is 1, the value of this column is the value of the default for the parameter; otherwise,NULL
.
That is, whatever the default for a parameter is, it has to fit in that column.
As Alex K pointed out in the comments, you can just do:
CREATE PROCEDURE [dbo].[problemParam]
@StartDate INT = NULL,
@EndDate INT = NULL
AS
BEGIN
SET @StartDate = COALESCE(@StartDate,CONVERT(INT,(CONVERT(CHAR(8),GETDATE()-130,112))))
provided that NULL
isn't intended to be a valid value for @StartDate
.
As to the blog post you linked to in the comments - that's talking about a very specific context - that, the result of evaluating GETDATE()
within the context of a single query is often considered to be constant. I don't know of many people (unlike the blog author) who would consider a separate expression inside a UDF to be part of the same query as the query that calls the UDF.
Another option is to use querySelector('.foo')
or querySelectorAll('.foo')
which have broader browser support than getElementsByClassName
.
An array type is denoted as T[n]
where T
is the element type and n
is a positive size, the number of elements in the array. The array type is a product type of the element type and the size. If one or both of those ingredients differ, you get a distinct type:
#include <type_traits>
static_assert(!std::is_same<int[8], float[8]>::value, "distinct element type");
static_assert(!std::is_same<int[8], int[9]>::value, "distinct size");
Note that the size is part of the type, that is, array types of different size are incompatible types that have absolutely nothing to do with each other. sizeof(T[n])
is equivalent to n * sizeof(T)
.
The only "connection" between T[n]
and T[m]
is that both types can implicitly be converted to T*
, and the result of this conversion is a pointer to the first element of the array. That is, anywhere a T*
is required, you can provide a T[n]
, and the compiler will silently provide that pointer:
+---+---+---+---+---+---+---+---+
the_actual_array: | | | | | | | | | int[8]
+---+---+---+---+---+---+---+---+
^
|
|
|
| pointer_to_the_first_element int*
This conversion is known as "array-to-pointer decay", and it is a major source of confusion. The size of the array is lost in this process, since it is no longer part of the type (T*
). Pro: Forgetting the size of an array on the type level allows a pointer to point to the first element of an array of any size. Con: Given a pointer to the first (or any other) element of an array, there is no way to detect how large that array is or where exactly the pointer points to relative to the bounds of the array. Pointers are extremely stupid.
The compiler will silently generate a pointer to the first element of an array whenever it is deemed useful, that is, whenever an operation would fail on an array but succeed on a pointer. This conversion from array to pointer is trivial, since the resulting pointer value is simply the address of the array. Note that the pointer is not stored as part of the array itself (or anywhere else in memory). An array is not a pointer.
static_assert(!std::is_same<int[8], int*>::value, "an array is not a pointer");
One important context in which an array does not decay into a pointer to its first element is when the &
operator is applied to it. In that case, the &
operator yields a pointer to the entire array, not just a pointer to its first element. Although in that case the values (the addresses) are the same, a pointer to the first element of an array and a pointer to the entire array are completely distinct types:
static_assert(!std::is_same<int*, int(*)[8]>::value, "distinct element type");
The following ASCII art explains this distinction:
+-----------------------------------+
| +---+---+---+---+---+---+---+---+ |
+---> | | | | | | | | | | | int[8]
| | +---+---+---+---+---+---+---+---+ |
| +---^-------------------------------+
| |
| |
| |
| | pointer_to_the_first_element int*
|
| pointer_to_the_entire_array int(*)[8]
Note how the pointer to the first element only points to a single integer (depicted as a small box), whereas the pointer to the entire array points to an array of 8 integers (depicted as a large box).
The same situation arises in classes and is maybe more obvious. A pointer to an object and a pointer to its first data member have the same value (the same address), yet they are completely distinct types.
If you are unfamiliar with the C declarator syntax, the parenthesis in the type int(*)[8]
are essential:
int(*)[8]
is a pointer to an array of 8 integers.int*[8]
is an array of 8 pointers, each element of type int*
.C++ provides two syntactic variations to access individual elements of an array. Neither of them is superior to the other, and you should familiarize yourself with both.
Given a pointer p
to the first element of an array, the expression p+i
yields a pointer to the i-th element of the array. By dereferencing that pointer afterwards, one can access individual elements:
std::cout << *(x+3) << ", " << *(x+7) << std::endl;
If x
denotes an array, then array-to-pointer decay will kick in, because adding an array and an integer is meaningless (there is no plus operation on arrays), but adding a pointer and an integer makes sense:
+---+---+---+---+---+---+---+---+
x: | | | | | | | | | int[8]
+---+---+---+---+---+---+---+---+
^ ^ ^
| | |
| | |
| | |
x+0 | x+3 | x+7 | int*
(Note that the implicitly generated pointer has no name, so I wrote x+0
in order to identify it.)
If, on the other hand, x
denotes a pointer to the first (or any other) element of an array, then array-to-pointer decay is not necessary, because the pointer on which i
is going to be added already exists:
+---+---+---+---+---+---+---+---+
| | | | | | | | | int[8]
+---+---+---+---+---+---+---+---+
^ ^ ^
| | |
| | |
+-|-+ | |
x: | | | x+3 | x+7 | int*
+---+
Note that in the depicted case, x
is a pointer variable (discernible by the small box next to x
), but it could just as well be the result of a function returning a pointer (or any other expression of type T*
).
Since the syntax *(x+i)
is a bit clumsy, C++ provides the alternative syntax x[i]
:
std::cout << x[3] << ", " << x[7] << std::endl;
Due to the fact that addition is commutative, the following code does exactly the same:
std::cout << 3[x] << ", " << 7[x] << std::endl;
The definition of the indexing operator leads to the following interesting equivalence:
&x[i] == &*(x+i) == x+i
However, &x[0]
is generally not equivalent to x
. The former is a pointer, the latter an array. Only when the context triggers array-to-pointer decay can x
and &x[0]
be used interchangeably. For example:
T* p = &array[0]; // rewritten as &*(array+0), decay happens due to the addition
T* q = array; // decay happens due to the assignment
On the first line, the compiler detects an assignment from a pointer to a pointer, which trivially succeeds. On the second line, it detects an assignment from an array to a pointer. Since this is meaningless (but pointer to pointer assignment makes sense), array-to-pointer decay kicks in as usual.
An array of type T[n]
has n
elements, indexed from 0
to n-1
; there is no element n
. And yet, to support half-open ranges (where the beginning is inclusive and the end is exclusive), C++ allows the computation of a pointer to the (non-existent) n-th element, but it is illegal to dereference that pointer:
+---+---+---+---+---+---+---+---+....
x: | | | | | | | | | . int[8]
+---+---+---+---+---+---+---+---+....
^ ^
| |
| |
| |
x+0 | x+8 | int*
For example, if you want to sort an array, both of the following would work equally well:
std::sort(x + 0, x + n);
std::sort(&x[0], &x[0] + n);
Note that it is illegal to provide &x[n]
as the second argument since this is equivalent to &*(x+n)
, and the sub-expression *(x+n)
technically invokes undefined behavior in C++ (but not in C99).
Also note that you could simply provide x
as the first argument. That is a little too terse for my taste, and it also makes template argument deduction a bit harder for the compiler, because in that case the first argument is an array but the second argument is a pointer. (Again, array-to-pointer decay kicks in.)
This method does everything in place. Many of the other answers create copies and are not as efficient:
df.drop(df.columns[df.columns.str.contains('Test')], axis=1, inplace=True)
Policykit is a system daemon and policykit authentication agent is used to verify identity of the user before executing actions. The messages logged in /var/log/secure
show that an authentication agent is registered when user logs in and it gets unregistered when user logs out. These messages are harmless and can be safely ignored.
Bootstrap 2.x
You could create a new CSS class such as:
.img-center {margin:0 auto;}
And then, add this to each IMG:
<img src="images/2.png" class="img-responsive img-center">
OR, just override the .img-responsive
if you're going to center all images..
.img-responsive {margin:0 auto;}
Demo: http://bootply.com/86123
Bootstrap 3.x
EDIT - With the release of Bootstrap 3.0.1, the center-block
class can now be used without any additional CSS..
<img src="images/2.png" class="img-responsive center-block">
Bootstrap 4
In Bootstrap 4, the mx-auto
class (auto x-axis margins) can be used to center images that are display:block
. However, img is display:inline
by default so text-center
can be used on the parent.
<div class="container">
<div class="row">
<div class="col-12">
<img class="mx-auto d-block" src="//placehold.it/200">
</div>
</div>
<div class="row">
<div class="col-12 text-center">
<img src="//placehold.it/200">
</div>
</div>
</div>
What I used was a small hack. I used T(1), which returned an empty cell. T is a function in excel that returns its argument if its a string and an empty cell otherwise. So, what you can do is:
=IF(condition,T(1),value)
If you just want to compute (column a) % (column b), you don't need apply
, just do it directly:
In [7]: df['a'] % df['c']
Out[7]:
0 -1.132022
1 -0.939493
2 0.201931
3 0.511374
4 -0.694647
5 -0.023486
Name: a
Here is what you are looking for:
Service hangs up at WaitForExit after calling batch file
It's about a question as to why a service can't execute a file, but it shows all the code necessary to do so.
(I was browsing another article on something entirely different.. and polymorphism popped up... Now I thought that I knew what Polymorphism was.... but apparently not in this beautiful way explained.. Wanted to write it down somewhere.. better still will share it... )
http://www.eioba.com/a/1htn/how-i-explained-rest-to-my-wife
read on from this part:
..... polymorphism. That's a geeky way of saying that different nouns can have the same verb applied to them.
If you build packages from scratch:
Specifically, if you build bash
from source, install docs, including man pages, will fail (silently) without makeinfo
available.
As the recent developed Web Applications are using JavaScript, jQuery, AngularJS, ReactJS etc there is a possibility that to retrieve an attribute of an element through Selenium you have to induce WebDriverWait to synchronize the WebDriver instance with the lagging Web Client i.e. the Web Browser before trying to retrieve any of the attributes.
Some examples:
Python:
To retrieve any attribute form a visible element (e.g. <h1>
tag) you need to use the expected_conditions as visibility_of_element_located(locator)
as follows:
attribute_value = WebDriverWait(driver, 20).until(EC.visibility_of_element_located((By.ID, "org"))).get_attribute("attribute_name")
To retrieve any attribute form an interactive element (e.g. <input>
tag) you need to use the expected_conditions as element_to_be_clickable(locator)
as follows:
attribute_value = WebDriverWait(driver, 20).until(EC.element_to_be_clickable((By.ID, "org"))).get_attribute("attribute_name")
Below is a list of some attributes often used in HTML
Note: A complete list of all attributes for each HTML element, is listed in: HTML Attribute Reference
2017 Update:
Stackdriver Logging is now available for Google Apps Script. From the menu bar in the script editor, goto:
View > Stackdriver Logging
to view or stream the logs.
console.log() will write DEBUG
level messages
Example onEdit()
logging:
function onEdit (e) {
var debug_e = {
authMode: e.authMode,
range: e.range.getA1Notation(),
source: e.source.getId(),
user: e.user,
value: e.value,
oldValue: e. oldValue
}
console.log({message: 'onEdit() Event Object', eventObject: debug_e});
}
Then check the logs in the Stackdriver UI labeled onEdit() Event Object
to see the output
The authority, as listed in android:authorities
must be unique. Quoting the documentation for this attribute:
To avoid conflicts, authority names should use a Java-style naming convention (such as com.example.provider.cartoonprovider). Typically, it's the name of the ContentProvider subclass that implements the provider
Handy with error_log() if you're outputting multiple lines.
I've found a lot of debug statements look weird on my windows install since the developers have assumed unix endings when breaking up strings.
You might try using a library like redux-saga. It allows for a very clean way to sequence async functions, fire off actions, use delays and more. It is very powerful!
Sometimes when you have special characters in password you need to wrap it in ''
characters, so to connect to db you could use:
mysql -uUSER -p'pa$$w0rd'
I had the same error and this solution solved it.
I will go for Inner Join in this context. If I would have used contains, it would iterate 6 times despite if the fact that there are just one match.
var desiredNames = new[] { "Pankaj", "Garg" };
var people = new[]
{
new { FirstName="Pankaj", Surname="Garg" },
new { FirstName="Marc", Surname="Gravell" },
new { FirstName="Jeff", Surname="Atwood" }
};
var records = (from p in people join filtered in desiredNames on p.FirstName equals filtered select p.FirstName).ToList();
Suppose I have two list objects.
List 1 List 2
1 12
2 7
3 8
4 98
5 9
6 10
7 6
Using Contains, it will search for each List 1 item in List 2 that means iteration will happen 49 times !!!
std::vector
is a template class that encapsulate a dynamic array1, stored in the heap, that grows and shrinks automatically if elements are added or removed. It provides all the hooks (begin()
, end()
, iterators, etc) that make it work fine with the rest of the STL. It also has several useful methods that let you perform operations that on a normal array would be cumbersome, like e.g. inserting elements in the middle of a vector (it handles all the work of moving the following elements behind the scenes).
Since it stores the elements in memory allocated on the heap, it has some overhead in respect to static arrays.
std::array
is a template class that encapsulate a statically-sized array, stored inside the object itself, which means that, if you instantiate the class on the stack, the array itself will be on the stack. Its size has to be known at compile time (it's passed as a template parameter), and it cannot grow or shrink.
It's more limited than std::vector
, but it's often more efficient, especially for small sizes, because in practice it's mostly a lightweight wrapper around a C-style array. However, it's more secure, since the implicit conversion to pointer is disabled, and it provides much of the STL-related functionality of std::vector
and of the other containers, so you can use it easily with STL algorithms & co. Anyhow, for the very limitation of fixed size it's much less flexible than std::vector
.
For an introduction to std::array
, have a look at this article; for a quick introduction to std::vector
and to the the operations that are possible on it, you may want to look at its documentation.
If creating a SSLSocketFactory
is not an option, just import the key into the JVM
Retrieve the public key:
$openssl s_client -connect dev-server:443
, then create a file dev-server.pem that looks like
-----BEGIN CERTIFICATE-----
lklkkkllklklklklllkllklkl
lklkkkllklklklklllkllklkl
lklkkkllklk....
-----END CERTIFICATE-----
Import the key: #keytool -import -alias dev-server -keystore $JAVA_HOME/jre/lib/security/cacerts -file dev-server.pem
.
Password: changeit
Restart JVM
From your feature branch (e.g configUpdate
) run:
git fetch
git rebase origin/master
Or the shorter form:
git pull --rebase
Why this works:
git merge branchname
takes new commits from the branch branchname
, and adds them to the current branch. If necessary, it automatically adds a "Merge" commit on top.
git rebase branchname
takes new commits from the branch branchname
, and inserts them "under" your changes. More precisely, it modifies the history of the current branch such that it is based on the tip of branchname
, with any changes you made on top of that.
git pull
is basically the same as git fetch; git merge origin/master
.
git pull --rebase
is basically the same as git fetch; git rebase origin/master
.
So why would you want to use git pull --rebase
rather than git pull
? Here's a simple example:
You start working on a new feature.
By the time you're ready to push your changes, several commits have been pushed by other developers.
If you git pull
(which uses merge), your changes will be buried by the new commits, in addition to an automatically-created merge commit.
If you git pull --rebase
instead, git will fast forward your master to upstream's, then apply your changes on top.
The Angular2 team published a tutorial for using Webpack
I created and placed the files from the tutorial in a small GitHub seed project. So you can quickly try the workflow.
Instructions:
npm install
npm start. For development. This will create a virtual "dist" folder that will be livereloaded at your localhost address.
npm run build. For production. "This will create a physical "dist" folder version than can be sent to a webserver. The dist folder is 7.8MB but only 234KB is actually required to load the page in a web browser.
This Webpack Starter Kit offers some more testing features than the above tutorial and seem quite popular.
update @Mike Chirico's to Swift 5
extension String{
func regex(pattern: String) -> [String]?{
do {
let regex = try NSRegularExpression(pattern: pattern, options: NSRegularExpression.Options(rawValue: 0))
let all = NSRange(location: 0, length: count)
var matches = [String]()
regex.enumerateMatches(in: self, options: NSRegularExpression.MatchingOptions(rawValue: 0), range: all) {
(result : NSTextCheckingResult?, _, _) in
if let r = result {
let nsstr = self as NSString
let result = nsstr.substring(with: r.range) as String
matches.append(result)
}
}
return matches
} catch {
return nil
}
}
}
Best answer is great, short and on point, but I would like to put my pennyworth.
Basically npm start and ng serve can be used interchangeably in Angular projects as long as you do not want the command to do additional stuff. Let me elaborate on this one.
For example you may want to configure your proxy in package.json start script like this: "start": "ng serve --proxy-config proxy.config.json",
Obviously sole use of ng serve will not be enough.
Another instance is when instead of using the defaults you need to use some additional options ad hoc like define the temporary port: ng serve --port 4444
Some parameters are only available to ng serve, others to npm start. Notice that port option works for both, so in that case it is up to your taste, again. :)
AFAIK there is no way. You should try to avoid this situation by always setting pointers to NULL after freeing memory.
This worked for a patch to read a json config.
class ObjectUnderTest:
def __init__(self, filename: str):
with open(filename, 'r') as f:
dict_content = json.load(f)
The mocked object is the io.TextIOWrapper object returned by the open() function
@patch("<src.where.object.is.used>.open",
return_value=io.TextIOWrapper(io.BufferedReader(io.BytesIO(b'{"test_key": "test_value"}'))))
def test_object_function_under_test(self, mocker):
Here is a simple extension method:
public static class StringBuilderExtensions
{
public static StringBuilder Replace(this StringBuilder sb, int position, string newString)
=> sb.Replace(position, newString.Length, newString);
public static StringBuilder Replace(this StringBuilder sb, int position, int length, string newString)
=> (newString.Length <= length)
? sb.Remove(position, newString.Length).Insert(position, newString)
: sb.Remove(position, length).Insert(position, newString.Substring(0, length));
}
Use it like this:
var theString = new string(' ', 10);
var sb = new StringBuilder(theString);
sb.Replace(5, "foo");
return sb.ToString();
Edit: Some complain that it doesn't take into account protocol. So I decided to upgrade the code, since it is marked as answer. For those who like one-line-code... well sorry this why we use code minimizers, code should be human readable and this way is better... in my opinion.
var pathArray = "https://somedomain.com".split( '/' );
var protocol = pathArray[0];
var host = pathArray[2];
var url = protocol + '//' + host;
Or use Davids solution from below.
json.loads
take a string as input and returns a dictionary as output.json.dumps
take a dictionary as input and returns a string as output.If you need to convert JSON data into a python object, it can do so with Python3
, in one line without additional installations, using SimpleNamespace
and object_hook
:
import json
from types import SimpleNamespace
string = '{"foo":3, "bar":{"x":1, "y":2}}'
# Parse JSON into an object with attributes corresponding to dict keys.
x = json.loads(string, object_hook=lambda d: SimpleNamespace(**d))
print(x.foo)
print(x.bar.x)
print(x.bar.y)
output:
3
1
2
JSON object: data.json
{
"foo": 3,
"bar": {
"x": 1,
"y": 2
}
}
import json
from types import SimpleNamespace
with open("data.json") as fh:
string = fh.read()
# Parse JSON into an object with attributes corresponding to dict keys.
x = json.loads(string, object_hook=lambda d: SimpleNamespace(**d))
print(x.foo)
print(x.bar.x)
print(x.bar.y)
output:
3
1
2
import json
from types import SimpleNamespace
import requests
r = requests.get('https://api.github.com/users/MilovanTomasevic')
# Parse JSON into an object with attributes corresponding to dict keys.
x = json.loads(r.text, object_hook=lambda d: SimpleNamespace(**d))
print(x.name)
print(x.company)
print(x.blog)
output:
Milovan Tomaševic
NLB
milovantomasevic.com
For more beautiful and faster access to JSON response from API, take a look at this response.
var cumulativeOffset = function(element) {
var top = 0, left = 0;
do {
top += element.offsetTop || 0;
left += element.offsetLeft || 0;
element = element.offsetParent;
} while(element);
return {
top: top,
left: left
};
};
(Method shamelessly stolen from PrototypeJS; code style, variable names and return value changed to protect the innocent)
Equal height columns is the default behaviour for Bootstrap 4 grids.
.col { background: red; }_x000D_
.col:nth-child(odd) { background: yellow; }
_x000D_
<link rel="stylesheet" href="https://maxcdn.bootstrapcdn.com/bootstrap/4.0.0-alpha.6/css/bootstrap.min.css" integrity="sha384-rwoIResjU2yc3z8GV/NPeZWAv56rSmLldC3R/AZzGRnGxQQKnKkoFVhFQhNUwEyJ" crossorigin="anonymous">_x000D_
_x000D_
<div class="container">_x000D_
<div class="row">_x000D_
<div class="col">_x000D_
1 of 3_x000D_
</div>_x000D_
<div class="col">_x000D_
1 of 3_x000D_
<br>_x000D_
Line 2_x000D_
<br>_x000D_
Line 3_x000D_
</div>_x000D_
<div class="col">_x000D_
1 of 3_x000D_
</div>_x000D_
</div>_x000D_
</div>
_x000D_
Do use NULL. It is just #defined as 0 anyway and it is very useful to semantically distinguish it from the integer 0.
There are problems with using 0 (and hence NULL). For example:
void f(int);
void f(void*);
f(0); // Ambiguous. Calls f(int).
The next version of C++ (C++0x) includes nullptr
to fix this.
f(nullptr); // Calls f(void*).
mappedby
speaks for itself, it tells hibernate not to map this field. it's already mapped by this field [name="field"].
field is in the other entity (name of the variable in the class not the table in the database)
..
If you don't do that, hibernate will map this two relation as it's not the same relation
so we need to tell hibernate to do the mapping in one side only and co-ordinate between them.
$pdf->Output( "myfile.pdf", "F");
TCPDF ERROR: Unable to create output file: myfile.pdf
In the include/tcpdf_static.php
file about 2435 line in the static function fopenLocal
if I delete the complete 'if statement' it works fine.
public static function fopenLocal($filename, $mode) {
/*if (strpos($filename, '://') === false) {
$filename = 'file://'.$filename;
} elseif (strpos($filename, 'file://') !== 0) {
return false;
}*/
return fopen($filename, $mode);
}
Corrected a few things and added an alternative select - delete as appropriate.
DELIMITER |
CREATE PROCEDURE getNearestCities
(
IN p_cityID INT -- should this be int unsigned ?
)
BEGIN
DECLARE cityLat FLOAT; -- should these be decimals ?
DECLARE cityLng FLOAT;
-- method 1
SELECT lat,lng into cityLat, cityLng FROM cities WHERE cities.cityID = p_cityID;
SELECT
b.*,
HAVERSINE(cityLat,cityLng, b.lat, b.lng) AS dist
FROM
cities b
ORDER BY
dist
LIMIT 10;
-- method 2
SELECT
b.*,
HAVERSINE(a.lat, a.lng, b.lat, b.lng) AS dist
FROM
cities AS a
JOIN cities AS b on a.cityID = p_cityID
ORDER BY
dist
LIMIT 10;
END |
delimiter ;
Your query should work for synonyms as well as the tables. However, you seem to expect indexes on views where there are not. Maybe is it materialized views ?
Note that if you want a multi line text box you have to use a <textarea>
instead of an <input type="text">
.
MSDN: ROW_NUMBER (Transact-SQL)
Returns the sequential number of a row within a partition of a result set, starting at 1 for the first row in each partition.
The following example returns rows with numbers 50 to 60 inclusive in the order of the OrderDate.
WITH OrderedOrders AS
(
SELECT
ROW_NUMBER() OVER(ORDER BY FirstName DESC) AS RowNumber,
FirstName, LastName, ROUND(SalesYTD,2,1) AS "Sales YTD"
FROM [dbo].[vSalesPerson]
)
SELECT RowNumber,
FirstName, LastName, Sales YTD
FROM OrderedOrders
WHERE RowNumber > 50 AND RowNumber < 60;
RowNumber FirstName LastName SalesYTD
--- ----------- ---------------------- -----------------
1 Linda Mitchell 4251368.54
2 Jae Pak 4116871.22
3 Michael Blythe 3763178.17
4 Jillian Carson 3189418.36
5 Ranjit Varkey Chudukatil 3121616.32
6 José Saraiva 2604540.71
7 Shu Ito 2458535.61
8 Tsvi Reiter 2315185.61
9 Rachel Valdez 1827066.71
10 Tete Mensa-Annan 1576562.19
11 David Campbell 1573012.93
12 Garrett Vargas 1453719.46
13 Lynn Tsoflias 1421810.92
14 Pamela Ansman-Wolfe 1352577.13
A temp table can be created in the caller and then populated from the called SP.
create table #GetValuesOutputTable(
...
);
exec GetValues; -- populates #GetValuesOutputTable
select * from #GetValuesOutputTable;
Some advantages of this approach over the "insert exec" is that it can be nested and that it can be used as input or output.
Some disadvantages are that the "argument" is not public, the table creation exists within each caller, and that the name of the table could collide with other temp objects. It helps when the temp table name closely matches the SP name and follows some convention.
Taking it a bit farther, for output only temp tables, the insert-exec approach and the temp table approach can be supported simultaneously by the called SP. This doesn't help too much for chaining SP's because the table still need to be defined in the caller but can help to simplify testing from the cmd line or when calling externally.
-- The "called" SP
declare
@returnAsSelect bit = 0;
if object_id('tempdb..#GetValuesOutputTable') is null
begin
set @returnAsSelect = 1;
create table #GetValuesOutputTable(
...
);
end
-- populate the table
if @returnAsSelect = 1
select * from #GetValuesOutputTable;
Consider cleaning your poject before running the servelet. This will delete all the corrupted files.
The public
keyword is used only when declaring a class method.
Since you're declaring a simple function and not a class you need to remove public
from your code.
This is a quick hacky way: ls -lart | grep -v ^total
.
Basically, remove any lines that start with "total", which in ls
output should only be the first line.
A more general way (for anything):
ls -lart | sed "1 d"
sed "1 d"
means only print everything but first line.
Use (eventName)
for while binding event to DOM, basically ()
is used for event binding. Also use ngModel
to get two way binding for myModel
variable.
Markup
<input type="text" [(ngModel)]="myModel" (blur)="onBlurMethod()">
Code
export class AppComponent {
myModel: any;
constructor(){
this.myModel = '123';
}
onBlurMethod(){
alert(this.myModel)
}
}
Alternative(not preferable)
<input type="text" #input (blur)="onBlurMethod($event.target.value)">
For model driven form to fire validation on blur
, you could pass updateOn
parameter.
ctrl = new FormControl('', {
updateOn: 'blur', //default will be change
validators: [Validators.required]
});
\begin{equation}
\resizebox{.9\hsize}{!}{$A+B+C+D+E+F+G+H+I+J+K+L+M+N+O+P+Q+R+S+T+U+V+W+X+Y+Z$}
\end{equation}
or
\begin{equation}
\resizebox{.8\hsize}{!}{$A+B+C+D+E+F+G+H+I+J+K+L+M+N+O+P+Q+R+S+T+U+V+W+X+Y+Z$}
\end{equation}
I haven't figure out the reason but reinstalling the .pfx
certificate(both in current user and local machine) works for me.
Your test is good, but it measures only some specific situation: we have one polygon with many vertices, and long array of points to check them within polygon.
Moreover, I suppose that you're measuring not matplotlib-inside-polygon-method vs ray-method, but matplotlib-somehow-optimized-iteration vs simple-list-iteration
Let's make N independent comparisons (N pairs of point and polygon)?
# ... your code...
lenpoly = 100
polygon = [[np.sin(x)+0.5,np.cos(x)+0.5] for x in np.linspace(0,2*np.pi,lenpoly)[:-1]]
M = 10000
start_time = time()
# Ray tracing
for i in range(M):
x,y = np.random.random(), np.random.random()
inside1 = ray_tracing_method(x,y, polygon)
print "Ray Tracing Elapsed time: " + str(time()-start_time)
# Matplotlib mplPath
start_time = time()
for i in range(M):
x,y = np.random.random(), np.random.random()
inside2 = path.contains_points([[x,y]])
print "Matplotlib contains_points Elapsed time: " + str(time()-start_time)
Result:
Ray Tracing Elapsed time: 0.548588991165
Matplotlib contains_points Elapsed time: 0.103765010834
Matplotlib is still much better, but not 100 times better. Now let's try much simpler polygon...
lenpoly = 5
# ... same code
result:
Ray Tracing Elapsed time: 0.0727779865265
Matplotlib contains_points Elapsed time: 0.105288982391
First, you don't need the .class files if they are compiled from your .java classes.
To import your files, you need to create an empty Java project. They you either import them one by one (New -> File -> Advanced -> Link file) or directly copy them into their corresponding folder/package and refresh the project.
<%
String session_val = (String)session.getAttribute("sessionval");
System.out.println("session_val"+session_val);
%>
<html>
<head>
<script type="text/javascript">
var session_obj= '<%=session_val%>';
alert("session_obj"+session_obj);
</script>
</head>
</html>
Right click on the res folder and add your image as Image Assets in this way. Android studio will automatically generate image assets with different resolutions.
You can directly create the folder and drag image inside but you won't have the different sized icons if you do that.
If you don't want to go with separate struct definition for nested struct and you don't like second method suggested by @OneOfOne you can use this third method:
package main
import "fmt"
type Configuration struct {
Val string
Proxy struct {
Address string
Port string
}
}
func main() {
c := &Configuration{
Val: "test",
}
c.Proxy.Address = `127.0.0.1`
c.Proxy.Port = `8080`
}
You can check it here: https://play.golang.org/p/WoSYCxzCF2
I think you are confused about how the compiler puts things together. When you use -c
flag, i.e. no linking is done, the input is C++ code, and the output is object code. The .o
files thus don't mix with -c
, and compiler warns you about that. Symbols from object file are not moved to other object files like that.
All object files should be on the final linker invocation, which is not the case here, so linker (called via g++
front-end) complains about missing symbols.
Here's a small example (calling g++
explicitly for clarity):
PROG ?= myprog
OBJS = worker.o main.o
all: $(PROG)
.cpp.o:
g++ -Wall -pedantic -ggdb -O2 -c -o $@ $<
$(PROG): $(OBJS)
g++ -Wall -pedantic -ggdb -O2 -o $@ $(OBJS)
There's also makedepend
utility that comes with X11 - helps a lot with source code dependencies. You might also want to look at the -M
gcc
option for building make
rules.
Nothing else seemed to work quite right, so I wrote this:
private boolean jsonEquals(JsonNode actualJson, JsonNode expectJson) {
if(actualJson.getNodeType() != expectJson.getNodeType()) return false;
switch(expectJson.getNodeType()) {
case NUMBER:
return actualJson.asDouble() == expectJson.asDouble();
case STRING:
case BOOLEAN:
return actualJson.asText().equals(expectJson.asText());
case OBJECT:
if(actualJson.size() != expectJson.size()) return false;
Iterator<String> fieldIterator = actualJson.fieldNames();
while(fieldIterator.hasNext()) {
String fieldName = fieldIterator.next();
if(!jsonEquals(actualJson.get(fieldName), expectJson.get(fieldName))) {
return false;
}
}
break;
case ARRAY:
if(actualJson.size() != expectJson.size()) return false;
List<JsonNode> remaining = new ArrayList<>();
expectJson.forEach(remaining::add);
// O(N^2)
for(int i=0; i < actualJson.size(); ++i) {
boolean oneEquals = false;
for(int j=0; j < remaining.size(); ++j) {
if(jsonEquals(actualJson.get(i), remaining.get(j))) {
oneEquals = true;
remaining.remove(j);
break;
}
}
if(!oneEquals) return false;
}
break;
default:
throw new IllegalStateException();
}
return true;
}
I was successful using tidy
command line utility. On linux I installed it quickly with apt-get install tidy
. Then the command:
tidy -q -asxml --numeric-entities yes source.html >file.xml
gave an xml file, which I was able to process with xslt processor. However I needed to set up xhtml1 dtds correctly.
This is their homepage: html-tidy.org (and the legacy one: HTML Tidy)
The localStorage
can only store string content and you are trying to store a jQuery object since html(htmlString)
returns a jQuery object.
You need to set the string content instead of an object. And use the setItem
method to add data and getItem
to get data.
window.localStorage.setItem('content', 'Test');
$('#test').html(window.localStorage.getItem('content'));
In newer versions of Eclipse the global configuration file can be set in
Windows > Preferences > Maven > User Settings > Global Settings
Don't beat me why global settings can be configured in user settings... Probably because of the same reason why you need to press "Start" to shutdown your PC on Windows... :D
Not sure if it has changed since the accepted answer was accepted, but it is possible.
$location.search()
will return an object of key-value pairs, the same pairs as the query string. A key that has no value is just stored in the object as true. In this case, the object would be:
{"test_user_bLzgB": true}
You could access this value directly with $location.search().test_user_bLzgB
Example (with larger query string): http://fiddle.jshell.net/TheSharpieOne/yHv2p/4/show/?test_user_bLzgB&somethingElse&also&something=Somethingelse
Note: Due to hashes (as it will go to http://fiddle.jshell.net/#/url, which would create a new fiddle), this fiddle will not work in browsers that do not support js history (will not work in IE <10)
Edit:
As pointed out in the comments by @Naresh and @DavidTchepak, the $locationProvider
also needs to be configured properly: https://code.angularjs.org/1.2.23/docs/guide/$location#-location-service-configuration
I made an extension method based on this MSDN article. This is how you can determine whether a socket is still connected.
public static bool IsConnected(this Socket client)
{
bool blockingState = client.Blocking;
try
{
byte[] tmp = new byte[1];
client.Blocking = false;
client.Send(tmp, 0, 0);
return true;
}
catch (SocketException e)
{
// 10035 == WSAEWOULDBLOCK
if (e.NativeErrorCode.Equals(10035))
{
return true;
}
else
{
return false;
}
}
finally
{
client.Blocking = blockingState;
}
}
As an alternative to some of the answers suggested above, if you have powershell installed, you can invoke that directly as your terminal. That is edit the corresponding setting.json
value as follows:
"terminal.integrated.shell.windows": "C:\\WINDOWS\\System32\\WindowsPowerShell\\v1.0\\powershell.exe"
I find this works well as the environment is correctly configured.
Sorry.Though it is a bit late but hope it would help others as well . Always use the stdClass object.e.g
$getvidids = $ci->db->query("SELECT * FROM videogroupids WHERE videogroupid='$videogroup' AND used='0' LIMIT 10");
foreach($getvidids->result() as $key=>$myids)
{
$vidid[$key] = $myids->videoid; // better methodology to retrieve and store multiple records in arrays in loop
}
As said before, Control
/Command
+ Shift
+ A
gives you basic support for tag matching. Press it again to extend the match to the parent element. Press arrow left/right to jump to the start/end tag.
Anyway, there is no built-in highlighting of matching tags. Emmet is a popular plugin but it's overkill for this purpose and can get in the way if you don't want Emmet-like editing. Bracket Highlighter seems to be a better choice for this use case.
A good reason, which you have sort of touched on, is that once the CSRF cookie has been received, it is then available for use throughout the application in client script for use in both regular forms and AJAX POSTs. This will make sense in a JavaScript heavy application such as one employed by AngularJS (using AngularJS doesn't require that the application will be a single page app, so it would be useful where state needs to flow between different page requests where the CSRF value cannot normally persist in the browser).
Consider the following scenarios and processes in a typical application for some pros and cons of each approach you describe. These are based on the Synchronizer Token Pattern.
Advantages:
Disadvantages:
Advantages:
Disadvantages:
Advantages:
Disadvantages:
Advantages:
Disadvantages:
Advantages:
Disadvantages:
So the cookie approach is fairly dynamic offering an easy way to retrieve the cookie value (any HTTP request) and to use it (JS can add the value to any form automatically and it can be employed in AJAX requests either as a header or as a form value). Once the CSRF token has been received for the session, there is no need to regenerate it as an attacker employing a CSRF exploit has no method of retrieving this token. If a malicious user tries to read the user's CSRF token in any of the above methods then this will be prevented by the Same Origin Policy. If a malicious user tries to retrieve the CSRF token server side (e.g. via curl
) then this token will not be associated to the same user account as the victim's auth session cookie will be missing from the request (it would be the attacker's - therefore it won't be associated server side with the victim's session).
As well as the Synchronizer Token Pattern there is also the Double Submit Cookie CSRF prevention method, which of course uses cookies to store a type of CSRF token. This is easier to implement as it does not require any server side state for the CSRF token. The CSRF token in fact could be the standard authentication cookie when using this method, and this value is submitted via cookies as usual with the request, but the value is also repeated in either a hidden field or header, of which an attacker cannot replicate as they cannot read the value in the first place. It would be recommended to choose another cookie however, other than the authentication cookie so that the authentication cookie can be secured by being marked HttpOnly. So this is another common reason why you'd find CSRF prevention using a cookie based method.
Many Answers are good but I use like this in swift 4
Create Constant
struct App {
static let isRunningOnIpad = UIDevice.current.userInterfaceIdiom == .pad ? true : false
}
Use like this
if App.isRunningOnIpad {
return load(from: .main, identifier: identifier)
} else {
return load(from: .ipad, identifier: identifier)
}
Edit: As Suggested Cœur simply create an extension on UIDevice
extension UIDevice {
static let isRunningOnIpad = UIDevice.current.userInterfaceIdiom == .pad ? true : false
}
I think you're conflating the use of the response
object with that of the request
.
The response
object is for sending the HTTP response back to the calling client, whereas you are wanting to access the body of the request
. See this answer which provides some guidance.
If you are using valid JSON and are POSTing it with Content-Type: application/json
, then you can use the bodyParser
middleware to parse the request body and place the result in request.body
of your route.
For earlier versions of Express (< 4)
var express = require('express')
, app = express.createServer();
app.use(express.bodyParser());
app.post('/', function(request, response){
console.log(request.body); // your JSON
response.send(request.body); // echo the result back
});
app.listen(3000);
Test along the lines of:
$ curl -d '{"MyKey":"My Value"}' -H "Content-Type: application/json" http://127.0.0.1:3000/
{"MyKey":"My Value"}
Updated for Express 4+
Body parser was split out into it's own npm package after v4, requires a separate install npm install body-parser
var express = require('express')
, bodyParser = require('body-parser');
var app = express();
app.use(bodyParser.json());
app.post('/', function(request, response){
console.log(request.body); // your JSON
response.send(request.body); // echo the result back
});
app.listen(3000);
Update for Express 4.16+
Starting with release 4.16.0, a new express.json()
middleware is available.
var express = require('express');
var app = express();
app.use(express.json());
app.post('/', function(request, response){
console.log(request.body); // your JSON
response.send(request.body); // echo the result back
});
app.listen(3000);
node-sass
(the official SASS wrapper for node.js
) provides a command line option --include-path
to help with such requirements.
Example:
In package.json
:
"scripts": {
"build-css": "node-sass src/ -o src/ --include-path src/",
}
Now, if you have a file src/styles/common.scss
in your project, you can import it with @import 'styles/common';
anywhere in your project.
Refer https://github.com/sass/node-sass#usage-1 for more details.
If you are using Angular 6 /7
import { of } from 'rxjs';
And then instead of calling
Observable.of(res);
just use
of(res);
If by numbers between 1 and 10 you mean any float that is >= 1 and < 10, then it's easy:
select random() * 9 + 1
This can be easily tested with:
# select min(i), max(i) from (
select random() * 9 + 1 as i from generate_series(1,1000000)
) q;
min | max
-----------------+------------------
1.0000083274208 | 9.99999571684748
(1 row)
If you want integers, that are >= 1 and < 10, then it's simple:
select trunc(random() * 9 + 1)
And again, simple test:
# select min(i), max(i) from (
select trunc(random() * 9 + 1) as i from generate_series(1,1000000)
) q;
min | max
-----+-----
1 | 9
(1 row)
Try this solution:
Oz<-subset(data, data$Month==5,select=Ozone) # select ozone value in the month of
#May (i.e. Month = 5)
summary(T) #gives caracteristics of table( contains 1 column of Ozone) including max, min ...
This is the best answer: https://stackoverflow.com/a/4027726/2159089
in linux:
export PYTHONIOENCODING=utf-8
so sys.stdout.encoding
is OK.
This looks like a behavior difference in the handling of \s
between grep 2.5 and newer versions (a bug in old grep?). I confirm your result with grep 2.5.4, but all four of your greps do work when using grep 2.6.3 (Ubuntu 10.10).
Note:
GNU grep 2.5.4
echo "foo bar" | grep "\s"
(doesn't match)
whereas
GNU grep 2.6.3
echo "foo bar" | grep "\s"
foo bar
Probably less trouble (as \s
is not documented):
Both GNU greps
echo "foo bar" | grep "[[:space:]]"
foo bar
My advice is to avoid using \s
... use [ \t]*
or [[:space:]]
or something like it instead.
<button backButton>BACK</button>
You can put this into a directive, that can be attached to any clickable element:
import { Directive, HostListener } from '@angular/core';
import { Location } from '@angular/common';
@Directive({
selector: '[backButton]'
})
export class BackButtonDirective {
constructor(private location: Location) { }
@HostListener('click')
onClick() {
this.location.back();
}
}
Usage:
<button backButton>BACK</button>
I was trying to install fancyimpute package for imputation but there was not luck. But when i tried below commands, it got installed: Commands:
conda update conda
conda update anaconda
pip install fancyimpute
(here i was trying to give command conda install fancyimpute which did't work)
Using modern --inspect with node the console.log is captured and relayed to the browser.
node --inspect myApp.js
or to capture early logging --inspect-brk can be used to stop the program on the first line of the first module...
node --inspect-brk myApp.js
Besides the already stated answers about using Vector, Vector also has a bunch of methods around enumeration and element retrieval which are different than the List interface, and developers (especially those who learned Java before 1.2) can tend to use them if they are in the code. Although Enumerations are faster, they don't check if the collection was modified during iteration, which can cause issues, and given that Vector might be chosen for its syncronization - with the attendant access from multiple threads, this makes it a particularly pernicious problem. Usage of these methods also couples a lot of code to Vector, such that it won't be easy to replace it with a different List implementation.
used ast, example
In [15]: a = "[{'start_city': '1', 'end_city': 'aaa', 'number': 1},\
...: {'start_city': '2', 'end_city': 'bbb', 'number': 1},\
...: {'start_city': '3', 'end_city': 'ccc', 'number': 1}]"
In [16]: import ast
In [17]: ast.literal_eval(a)
Out[17]:
[{'end_city': 'aaa', 'number': 1, 'start_city': '1'},
{'end_city': 'bbb', 'number': 1, 'start_city': '2'},
{'end_city': 'ccc', 'number': 1, 'start_city': '3'}]
I understand that the answer was useful however for some reason it does not work for me however I have moved the situation with the following code and it is perfect
<?php
$codigoarticulo = $_POST['codigoarticulo'];
$nombrearticulo = $_POST['nombrearticulo'];
$seccion = $_POST['seccion'];
$precio = $_POST['precio'];
$fecha = $_POST['fecha'];
$importado = $_POST['importado'];
$paisdeorigen = $_POST['paisdeorigen'];
try {
$server = 'mysql: host=localhost; dbname=usuarios';
$user = 'root';
$pass = '';
$base = new PDO($server, $user, $pass);
$base->setAttribute(PDO::ATTR_ERRMODE, PDO::ERRMODE_EXCEPTION);
$base->query("SET character_set_results = 'utf8',
character_set_client = 'utf8',
character_set_connection = 'utf8',
character_set_database = 'utf8',
character_set_server = 'utf8'");
$base->exec("SET character_set_results = 'utf8',
character_set_client = 'utf8',
character_set_connection = 'utf8',
character_set_database = 'utf8',
character_set_server = 'utf8'");
$sql = "
INSERT INTO productos
(CÓDIGOARTÍCULO, NOMBREARTÍCULO, SECCIÓN, PRECIO, FECHA, IMPORTADO, PAÍSDEORIGEN)
VALUES
(:c_art, :n_art, :sec, :pre, :fecha_art, :import, :p_orig)";
// SE ejecuta la consulta ben prepare
$result = $base->prepare($sql);
// se pasan por parametros aqui
$result->bindParam(':c_art', $codigoarticulo);
$result->bindParam(':n_art', $nombrearticulo);
$result->bindParam(':sec', $seccion);
$result->bindParam(':pre', $precio);
$result->bindParam(':fecha_art', $fecha);
$result->bindParam(':import', $importado);
$result->bindParam(':p_orig', $paisdeorigen);
$result->execute();
echo 'Articulo agregado';
} catch (Exception $e) {
echo 'Error';
echo $e->getMessage();
} finally {
}
?>
REPLACE INTO table(column_list) VALUES(value_list);
is a shorter form of
INSERT OR REPLACE INTO table(column_list) VALUES(value_list);
For REPLACE to execute correctly your table structure must have unique rows, whether a simple primary key or a unique index.
REPLACE deletes, then INSERTs the record and will cause an INSERT Trigger to execute if you have them setup. If you have a trigger on INSERT, you may encounter issues.
This is a work around.. not checked the speed..
INSERT OR IGNORE INTO table (column_list) VALUES(value_list);
followed by
UPDATE table SET field=value,field2=value WHERE uniqueid='uniquevalue'
This method allows a replace to occur without causing a trigger.
Add this class to your css file to override the bootstrap class.modal-header
.modal-header {
background:#0480be;
}
It's important try to never edit Bootstrap CSS, in order to be able to update from the repo and not loose the changes made or break something in futures releases.
You can use Safari to debug the iOS version of your app without having to enable "Debug JS Remotely", Just follow the following steps:
1. Enable Develop menu in Safari: Preferences ? Advanced ? Select "Show Develop menu in menu bar"
2. Select your app's JSContext: Develop ? {Your Simulator} ? Automatically Show Web Inspector for JS JSContext
3. Safari's Web Inspector should open which has a Console and a Debugger
I see the many types of uses, but I find this layout more useful as a reference tool:
SELECT DATE_FORMAT('2004-01-20' ,'%Y-%m-01');
When thinking about pointers, it helps to draw diagrams. A pointer is an arrow that points to an address in memory, with a label indicating the type of the value. The address indicates where to look and the type indicates what to take. Casting the pointer changes the label on the arrow but not where the arrow points.
d
in main
is a pointer to c
which is of type char
. A char
is one byte of memory, so when d
is dereferenced, you get the value in that one byte of memory. In the diagram below, each cell represents one byte.
-+----+----+----+----+----+----+-
| | c | | | | |
-+----+----+----+----+----+----+-
^~~~
| char
d
When you cast d
to int*
, you're saying that d
really points to an int
value. On most systems today, an int
occupies 4 bytes.
-+----+----+----+----+----+----+-
| | c | ?1 | ?2 | ?3 | |
-+----+----+----+----+----+----+-
^~~~~~~~~~~~~~~~~~~
| int
(int*)d
When you dereference (int*)d
, you get a value that is determined from these four bytes of memory. The value you get depends on what is in these cells marked ?
, and on how an int
is represented in memory.
A PC is little-endian, which means that the value of an int
is calculated this way (assuming that it spans 4 bytes):
* ((int*)d) == c + ?1 * 28 + ?2 * 2¹6 + ?3 * 2²4
. So you'll see that while the value is garbage, if you print in in hexadecimal (printf("%x\n", *n)
), the last two digits will always be 35
(that's the value of the character '5'
).
Some other systems are big-endian and arrange the bytes in the other direction: * ((int*)d) == c * 2²4 + ?1 * 2¹6 + ?2 * 28 + ?3
. On these systems, you'd find that the value always starts with 35
when printed in hexadecimal. Some systems have a size of int
that's different from 4 bytes. A rare few systems arrange int
in different ways but you're extremely unlikely to encounter them.
Depending on your compiler and operating system, you may find that the value is different every time you run the program, or that it's always the same but changes when you make even minor tweaks to the source code.
On some systems, an int
value must be stored in an address that's a multiple of 4 (or 2, or 8). This is called an alignment requirement. Depending on whether the address of c
happens to be properly aligned or not, the program may crash.
In contrast with your program, here's what happens when you have an int
value and take a pointer to it.
int x = 42;
int *p = &x;
-+----+----+----+----+----+----+-
| | x | |
-+----+----+----+----+----+----+-
^~~~~~~~~~~~~~~~~~~
| int
p
The pointer p
points to an int
value. The label on the arrow correctly describes what's in the memory cell, so there are no surprises when dereferencing it.
.NET Core has had a pair of methods to deal with this since version 2.0 :
Example:
"Test".Contains("test", System.StringComparison.CurrentCultureIgnoreCase);
In time, they will probably make their way into the .NET Standard and, from there, into all the other implementations of the Base Class Library.
Try to use stringByAddingPercentEncodingWithAllowedCharacters
method with [NSCharacterSet URLUserAllowedCharacterSet]
it will cover all the cases
Objective C
NSString *value = @"Test / Test";
value = [value stringByAddingPercentEncodingWithAllowedCharacters:[NSCharacterSet URLUserAllowedCharacterSet]];
swift
var value = "Test / Test"
value.stringByAddingPercentEncodingWithAllowedCharacters(NSCharacterSet.URLUserAllowedCharacterSet())
Output
Test%20%2F%20Test
Assuming you’ve literally got two date objects, you can subtract one from the other and query the resulting timedelta
object for the number of days:
>>> from datetime import date
>>> a = date(2011,11,24)
>>> b = date(2011,11,17)
>>> a-b
datetime.timedelta(7)
>>> (a-b).days
7
And it works with datetimes too — I think it rounds down to the nearest day:
>>> from datetime import datetime
>>> a = datetime(2011,11,24,0,0,0)
>>> b = datetime(2011,11,17,23,59,59)
>>> a-b
datetime.timedelta(6, 1)
>>> (a-b).days
6
Yes, you can use GROUP BY
:
SELECT time,
activities,
COUNT(*)
FROM table
GROUP BY time, activities;
You have to expand the Identity section to expose increment and seed.
Edit: I assumed that you'd have an integer datatype, not char(10). Which is reasonable I'd say and valid when I posted this answer
Hi the problem is in FileDownloader class
urlConnection.setRequestMethod("GET");
urlConnection.setDoOutput(true);
You need to remove the above two lines and everything will work fine. Please mark the question as answered if it is working as expected.
Latest solution for the same problem is updated Android PDF Write / Read using Android 9 (API level 28)
Attaching the working code with screenshots.
MainActivity.java
package com.example.downloadread;
import java.io.File;
import java.io.IOException;
import android.app.Activity;
import android.content.ActivityNotFoundException;
import android.content.Intent;
import android.net.Uri;
import android.os.AsyncTask;
import android.os.Bundle;
import android.os.Environment;
import android.view.Menu;
import android.view.View;
import android.widget.Toast;
public class MainActivity extends Activity {
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
}
@Override
public boolean onCreateOptionsMenu(Menu menu) {
// Inflate the menu; this adds items to the action bar if it is present.
getMenuInflater().inflate(R.menu.main, menu);
return true;
}
public void download(View v)
{
new DownloadFile().execute("http://maven.apache.org/maven-1.x/maven.pdf", "maven.pdf");
}
public void view(View v)
{
File pdfFile = new File(Environment.getExternalStorageDirectory() + "/testthreepdf/" + "maven.pdf"); // -> filename = maven.pdf
Uri path = Uri.fromFile(pdfFile);
Intent pdfIntent = new Intent(Intent.ACTION_VIEW);
pdfIntent.setDataAndType(path, "application/pdf");
pdfIntent.setFlags(Intent.FLAG_ACTIVITY_CLEAR_TOP);
try{
startActivity(pdfIntent);
}catch(ActivityNotFoundException e){
Toast.makeText(MainActivity.this, "No Application available to view PDF", Toast.LENGTH_SHORT).show();
}
}
private class DownloadFile extends AsyncTask<String, Void, Void>{
@Override
protected Void doInBackground(String... strings) {
String fileUrl = strings[0]; // -> http://maven.apache.org/maven-1.x/maven.pdf
String fileName = strings[1]; // -> maven.pdf
String extStorageDirectory = Environment.getExternalStorageDirectory().toString();
File folder = new File(extStorageDirectory, "testthreepdf");
folder.mkdir();
File pdfFile = new File(folder, fileName);
try{
pdfFile.createNewFile();
}catch (IOException e){
e.printStackTrace();
}
FileDownloader.downloadFile(fileUrl, pdfFile);
return null;
}
}
}
FileDownloader.java
package com.example.downloadread;
import java.io.File;
import java.io.FileNotFoundException;
import java.io.FileOutputStream;
import java.io.IOException;
import java.io.InputStream;
import java.net.HttpURLConnection;
import java.net.MalformedURLException;
import java.net.URL;
public class FileDownloader {
private static final int MEGABYTE = 1024 * 1024;
public static void downloadFile(String fileUrl, File directory){
try {
URL url = new URL(fileUrl);
HttpURLConnection urlConnection = (HttpURLConnection)url.openConnection();
//urlConnection.setRequestMethod("GET");
//urlConnection.setDoOutput(true);
urlConnection.connect();
InputStream inputStream = urlConnection.getInputStream();
FileOutputStream fileOutputStream = new FileOutputStream(directory);
int totalSize = urlConnection.getContentLength();
byte[] buffer = new byte[MEGABYTE];
int bufferLength = 0;
while((bufferLength = inputStream.read(buffer))>0 ){
fileOutputStream.write(buffer, 0, bufferLength);
}
fileOutputStream.close();
} catch (FileNotFoundException e) {
e.printStackTrace();
} catch (MalformedURLException e) {
e.printStackTrace();
} catch (IOException e) {
e.printStackTrace();
}
}
}
AndroidManifest.xml
<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
package="com.example.downloadread"
android:versionCode="1"
android:versionName="1.0" >
<uses-sdk
android:minSdkVersion="14"
android:targetSdkVersion="18" />
<uses-permission android:name="android.permission.INTERNET"></uses-permission>
<uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE"></uses-permission>
<uses-permission android:name="android.permission.ACCESS_NETWORK_STATE"></uses-permission>
<uses-permission android:name="android.permission.READ_PHONE_STATE"></uses-permission>
<application
android:allowBackup="true"
android:icon="@drawable/ic_launcher"
android:label="@string/app_name"
android:theme="@style/AppTheme" >
<activity
android:name="com.example.downloadread.MainActivity"
android:label="@string/app_name" >
<intent-filter>
<action android:name="android.intent.action.MAIN" />
<category android:name="android.intent.category.LAUNCHER" />
</intent-filter>
</activity>
</application>
</manifest>
activity_main.xml
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:paddingBottom="@dimen/activity_vertical_margin"
android:paddingLeft="@dimen/activity_horizontal_margin"
android:paddingRight="@dimen/activity_horizontal_margin"
android:paddingTop="@dimen/activity_vertical_margin"
tools:context=".MainActivity" >
<Button
android:id="@+id/button1"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_alignParentLeft="true"
android:layout_alignParentTop="true"
android:layout_marginTop="15dp"
android:text="download"
android:onClick="download" />
<Button
android:id="@+id/button2"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_alignParentLeft="true"
android:layout_alignParentRight="true"
android:layout_below="@+id/button1"
android:layout_marginTop="38dp"
android:text="view"
android:onClick="view" />
</RelativeLayout>
SFTP Plug-in: http://www.jcraft.com/eclipse-sftp/ :)
Toolbar actionBar = (Toolbar)findViewById(R.id.toolbar);
actionBar.addView(view);
setSupportActionBar(actionBar);
getSupportActionBar().setDisplayShowTitleEnabled(false);
take note of this line getSupportActionBar().setDisplayShowTitleEnabled(false);
Handles either type of line break
str.replace(new RegExp('\r?\n','g'), '<br />');
This might work?
Comparator mycomparator =
Collections.reverseOrder(Collections.reverseOrder());
SWT by itself is pretty low-level, and it uses the platform's native widgets through JNI. It is not related to Swing and AWT at all. The Eclipse IDE and all Eclipse-based Rich Client Applications, like the Vuze BitTorrent client, are built using SWT. Also, if you are developing Eclipse plugins, you will typically use SWT.
I have been developing Eclipse-based applications and plugins for almost 5 years now, so I'm clearly biased. However, I also have extensive experience in working with SWT and the JFace UI toolkit, which is built on top of it. I have found JFace to be very rich and powerful; in some cases it might even be the main reason for choosing SWT. It enables you to whip up a working UI quite quickly, as long as it is IDE-like (with tables, trees, native controls, etc). Of course you can integrate your custom controls as well, but that takes some extra effort.
Unlike some browsers, Java follows the HTTPS specification strictly when it comes to the server identity verification (RFC 2818, Section 3.1) and IP addresses.
When using a host name, it's possible to fall back to the Common Name in the Subject DN of the server certificate, instead of using the Subject Alternative Name.
When using an IP address, there must be a Subject Alternative Name entry (of type IP address, not DNS name) in the certificate.
You'll find more details about the specification and how to generate such a certificate in this answer.
Get contacts info , photo contacts , photo uri and convert to Class model
1). Sample for Class model :
public class ContactModel {
public String id;
public String name;
public String mobileNumber;
public Bitmap photo;
public Uri photoURI;
}
2). get Contacts and convert to Model
public List<ContactModel> getContacts(Context ctx) {
List<ContactModel> list = new ArrayList<>();
ContentResolver contentResolver = ctx.getContentResolver();
Cursor cursor = contentResolver.query(ContactsContract.Contacts.CONTENT_URI, null, null, null, null);
if (cursor.getCount() > 0) {
while (cursor.moveToNext()) {
String id = cursor.getString(cursor.getColumnIndex(ContactsContract.Contacts._ID));
if (cursor.getInt(cursor.getColumnIndex(ContactsContract.Contacts.HAS_PHONE_NUMBER)) > 0) {
Cursor cursorInfo = contentResolver.query(ContactsContract.CommonDataKinds.Phone.CONTENT_URI, null,
ContactsContract.CommonDataKinds.Phone.CONTACT_ID + " = ?", new String[]{id}, null);
InputStream inputStream = ContactsContract.Contacts.openContactPhotoInputStream(ctx.getContentResolver(),
ContentUris.withAppendedId(ContactsContract.Contacts.CONTENT_URI, new Long(id)));
Uri person = ContentUris.withAppendedId(ContactsContract.Contacts.CONTENT_URI, new Long(id));
Uri pURI = Uri.withAppendedPath(person, ContactsContract.Contacts.Photo.CONTENT_DIRECTORY);
Bitmap photo = null;
if (inputStream != null) {
photo = BitmapFactory.decodeStream(inputStream);
}
while (cursorInfo.moveToNext()) {
ContactModel info = new ContactModel();
info.id = id;
info.name = cursor.getString(cursor.getColumnIndex(ContactsContract.Contacts.DISPLAY_NAME));
info.mobileNumber = cursorInfo.getString(cursorInfo.getColumnIndex(ContactsContract.CommonDataKinds.Phone.NUMBER));
info.photo = photo;
info.photoURI= pURI;
list.add(info);
}
cursorInfo.close();
}
}
cursor.close();
}
return list;
}
Being late to this, but after Java 8, I personally find this following approach with the Stream
API more concise and can be an alternative to the accepted answer.
For example,
Arrays.stream(new int[size]).boxed().collect(Collectors.toList())
where size
is the desired List
size and without the disadvantage mentioned here, all elements in the List
are initialized as 0
.
(I did a quick search and did not see stream
in any answers posted - feel free to let me know if this answer is redundant and I can remove it)
I found this official tool from facebook developer page, this page will you following information related to access token - App ID, Type, App-Scoped,User last installed this app via, Issued, Expires, Data Access Expires, Valid, Origin, Scopes. Just need access token.
Filenames with "jpg" and "png" extensions in "path/to/images":
import os
accepted_extensions = ["jpg", "png"]
filenames = [fn for fn in os.listdir("path/to/images") if fn.split(".")[-1] in accepted_extensions]