Now I solved this issue in this way,
import javax.net.ssl.HttpsURLConnection;
import javax.net.ssl.SSLContext;
import javax.net.ssl.TrustManager;
import javax.net.ssl.X509TrustManager;
import java.io.OutputStream;
// Create a trust manager that does not validate certificate chains like the default
TrustManager[] trustAllCerts = new TrustManager[]{
new X509TrustManager() {
public java.security.cert.X509Certificate[] getAcceptedIssuers()
{
return null;
}
public void checkClientTrusted(java.security.cert.X509Certificate[] certs, String authType)
{
//No need to implement.
}
public void checkServerTrusted(java.security.cert.X509Certificate[] certs, String authType)
{
//No need to implement.
}
}
};
// Install the all-trusting trust manager
try
{
SSLContext sc = SSLContext.getInstance("SSL");
sc.init(null, trustAllCerts, new java.security.SecureRandom());
HttpsURLConnection.setDefaultSSLSocketFactory(sc.getSocketFactory());
}
catch (Exception e)
{
System.out.println(e);
}
Of course this solution should only be used in scenarios, where it is not possible to install the required certifcates using keytool
e.g. local testing with temporary certifcates.
If you are still recieving the InvalidKeyException when running my AES encryption program with 256 bit keys, but not with 128 bit keys, it is because you have not installed the new policy JAR files correctly, and has nothing to do with BouncyCastle (which is also restrained by those policy files). Try uninstalling, then re-installing java and then replaceing the old jar's with the new unlimited strength ones. Other than that, I'm out of ideas, best of luck.
You can see the policy files themselves if you open up the lib/security/local_policy.jar and US_export_policy.jar files in winzip and look at the conatined *.policy files in notepad and make sure they look like this:
default_local.policy:
// Country-specific policy file for countries with no limits on crypto strength.
grant {
// There is no restriction to any algorithms.
permission javax.crypto.CryptoAllPermission;
};
default_US_export.policy:
// Manufacturing policy file.
grant {
// There is no restriction to any algorithms.
permission javax.crypto.CryptoAllPermission;
};
What you're talking about is becoming a payment service provider. I have been there and done that. It was a lot easier about 10 years ago than it is now, but if you have a phenomenal amount of time, money and patience available, it is still possible.
You will need to contact an acquiring bank. You didnt say what region of the world you are in, but by this I dont mean a local bank branch. Each major bank will generally have a separate card acquiring arm. So here in the UK we have (eg) Natwest bank, which uses Streamline (or Worldpay) as its acquiring arm. In total even though we have scores of major banks, they all end up using one of five or so card acquirers.
Happily, all UK card acquirers use a standard protocol for communication of authorisation requests, and end of day settlement. You will find minor quirks where some acquiring banks support some features and have slightly different syntax, but the differences are fairly minor. The UK standards are published by the Association for Payment Clearing Services (APACS) (which is now known as the UKPA). The standards are still commonly referred to as APACS 30 (authorization) and APACS 29 (settlement), but are now formally known as APACS 70 (books 1 through 7).
Although the APACS standard is widely supported across the UK (Amex and Discover accept messages in this format too) it is not used in other countries - each country has it's own - for example: Carte Bancaire in France, CartaSi in Italy, Sistema 4B in Spain, Dankort in Denmark etc. An effort is under way to unify the protocols across Europe - see EPAS.org
Communicating with the acquiring bank can be done a number of ways. Again though, it will depend on your region. In the UK (and most of Europe) we have one communications gateway that provides connectivity to all the major acquirers, they are called TNS and there are dozens of ways of communicating through them to the acquiring bank, from dialup 9600 baud modems, ISDN, HTTPS, VPN or dedicated line. Ultimately the authorisation request will be converted to X25 protocol, which is the protocol used by these acquiring banks when communicating with each other.
In summary then: it all depends on your region.
Once you are registered and accredited you'll then be able to accept customers and set up merchant accounts on behalf of the bank/s you're accredited against (bearing in mind that each acquirer will generally support multiple banks). Rinse and repeat with other acquirers as you see necessary.
Beyond that you have lots of other issues, mainly dealing with PCI-DSS. Thats a whole other topic and there are already some q&a's on this site regarding that. Like I say, its a phenomenal undertaking - most likely a multi-year project even for a reasonably sized team, but its certainly possible.
Give the same name in urls.py
path('detail/<int:id>', views.detail, name="detail"),
Sample form using PHP for direct payments.
<form action="https://www.paypal.com/cgi-bin/webscr" method="post">
<input type="hidden" name="cmd" value="_cart">
<input type="hidden" name="upload" value="1">
<input type="hidden" name="business" value="[email protected]">
<input type="hidden" name="item_name_' . $x . '" value="' . $product_name . '">
<input type="hidden" name="amount_' . $x . '" value="' . $price . '">
<input type="hidden" name="quantity_' . $x . '" value="' . $each_item['quantity'] . '">
<input type="hidden" name="custom" value="' . $product_id_array . '">
<input type="hidden" name="notify_url" value="https://www.yoursite.com/my_ipn.php">
<input type="hidden" name="return" value="https://www.yoursite.com/checkout_complete.php">
<input type="hidden" name="rm" value="2">
<input type="hidden" name="cbt" value="Return to The Store">
<input type="hidden" name="cancel_return" value="https://www.yoursite.com/paypal_cancel.php">
<input type="hidden" name="lc" value="US">
<input type="hidden" name="currency_code" value="USD">
<input type="image" src="http://www.paypal.com/en_US/i/btn/x-click-but01.gif" name="submit" alt="Make payments with PayPal - its fast, free and secure!">
</form>
kindly go through the fields notify_url, return, cancel_return
sample code for handling ipn (my_ipn.php) which is requested by paypal after payment has been made.
For more information on creating a IPN, please refer to this link.
<?php
// Check to see there are posted variables coming into the script
if ($_SERVER['REQUEST_METHOD'] != "POST")
die("No Post Variables");
// Initialize the $req variable and add CMD key value pair
$req = 'cmd=_notify-validate';
// Read the post from PayPal
foreach ($_POST as $key => $value) {
$value = urlencode(stripslashes($value));
$req .= "&$key=$value";
}
// Now Post all of that back to PayPal's server using curl, and validate everything with PayPal
// We will use CURL instead of PHP for this for a more universally operable script (fsockopen has issues on some environments)
//$url = "https://www.sandbox.paypal.com/cgi-bin/webscr";
$url = "https://www.paypal.com/cgi-bin/webscr";
$curl_result = $curl_err = '';
$ch = curl_init();
curl_setopt($ch, CURLOPT_URL, $url);
curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1);
curl_setopt($ch, CURLOPT_POST, 1);
curl_setopt($ch, CURLOPT_POSTFIELDS, $req);
curl_setopt($ch, CURLOPT_HTTPHEADER, array("Content-Type: application/x-www-form-urlencoded", "Content-Length: " . strlen($req)));
curl_setopt($ch, CURLOPT_HEADER, 0);
curl_setopt($ch, CURLOPT_VERBOSE, 1);
curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, FALSE);
curl_setopt($ch, CURLOPT_TIMEOUT, 30);
$curl_result = @curl_exec($ch);
$curl_err = curl_error($ch);
curl_close($ch);
$req = str_replace("&", "\n", $req); // Make it a nice list in case we want to email it to ourselves for reporting
// Check that the result verifies
if (strpos($curl_result, "VERIFIED") !== false) {
$req .= "\n\nPaypal Verified OK";
} else {
$req .= "\n\nData NOT verified from Paypal!";
mail("[email protected]", "IPN interaction not verified", "$req", "From: [email protected]");
exit();
}
/* CHECK THESE 4 THINGS BEFORE PROCESSING THE TRANSACTION, HANDLE THEM AS YOU WISH
1. Make sure that business email returned is your business email
2. Make sure that the transaction?s payment status is ?completed?
3. Make sure there are no duplicate txn_id
4. Make sure the payment amount matches what you charge for items. (Defeat Price-Jacking) */
// Check Number 1 ------------------------------------------------------------------------------------------------------------
$receiver_email = $_POST['receiver_email'];
if ($receiver_email != "[email protected]") {
//handle the wrong business url
exit(); // exit script
}
// Check number 2 ------------------------------------------------------------------------------------------------------------
if ($_POST['payment_status'] != "Completed") {
// Handle how you think you should if a payment is not complete yet, a few scenarios can cause a transaction to be incomplete
}
// Check number 3 ------------------------------------------------------------------------------------------------------------
$this_txn = $_POST['txn_id'];
//check for duplicate txn_ids in the database
// Check number 4 ------------------------------------------------------------------------------------------------------------
$product_id_string = $_POST['custom'];
$product_id_string = rtrim($product_id_string, ","); // remove last comma
// Explode the string, make it an array, then query all the prices out, add them up, and make sure they match the payment_gross amount
// END ALL SECURITY CHECKS NOW IN THE DATABASE IT GOES ------------------------------------
////////////////////////////////////////////////////
// Homework - Examples of assigning local variables from the POST variables
$txn_id = $_POST['txn_id'];
$payer_email = $_POST['payer_email'];
$custom = $_POST['custom'];
// Place the transaction into the database
// Mail yourself the details
mail("[email protected]", "NORMAL IPN RESULT YAY MONEY!", $req, "From: [email protected]");
?>
The below image will help you in understanding the paypal process.
For further reading refer to the following links;
hope this helps you..:)
In the end, both do the same thing. There are some differences in code: Web Services doesn't add a Root namespace of project, but Service Reference adds service classes to the namespace of the project. The ServiceSoapClient
class gets a different naming, which is not important. In working with TFS I'd rather use Service Reference because it works better with source control. Both work with SOAP protocols.
I find it better to use the Service Reference because it is new and will thus be better maintained.
If a credit card is already added to a PayPal account then it won't let you use that card to process directly with Payments Advanced. The system expects buyers to login to PayPal and just choose that credit card as their funding source if they want to pay with it.
As for testing on the sandbox, I've always used old, expired credit cards I have laying around and they seem to work fine for me.
You could always try the ones starting on page 87 of the PayFlow documentation, too. They should work.
The pathlib library (included with >= Python 3.4) makes it very concise and intuitive to append the path of the parent directory to the PYTHONPATH:
import sys
from pathlib import Path
sys.path.append(str(Path('.').absolute().parent))
You need to loop through and parse/convert the elements in your array, like this:
var result_string = 'a,b,c,d|1,2,3,4',
result = result_string.split("|"),
alpha = result[0],
count = result[1],
count_array = count.split(",");
for(var i=0; i<count_array.length;i++) count_array[i] = +count_array[i];
//now count_array contains numbers
You can test it out here. If the +
, is throwing, think of it as:
for(var i=0; i<count_array.length;i++) count_array[i] = parseInt(count_array[i], 10);
Well I would like to help you by posting a sample program and its output
Program :-
t=input("")
x=[None]*t
y=[[None]*t]*t
for i in range(1,t+1):
x[i-1]=i;
for j in range(1,t+1):
y[i-1][j-1]=j;
print x
print y
Output :-
2
[1, 2]
[[1, 2], [1, 2]]
I hope this clears some very basic concept of yours regarding their declaration. To initialize them with some other specific values,like initializing them with 0..you can declare them as :
x=[0]*10
Hope it helps..!! ;)
Swift 5.0
func makeTransform(horizontalDegree: CGFloat, verticalDegree: CGFloat, maxVertical: CGFloat,rotateDegree: CGFloat, maxHorizontal: CGFloat) -> CATransform3D {
var transform = CATransform3DIdentity
transform.m34 = 1 / -500
let xAnchor = (horizontalDegree / (2 * maxHorizontal)) + 0.5
let yAnchor = (verticalDegree / (-2 * maxVertical)) + 0.5
let anchor = CGPoint(x: xAnchor, y: yAnchor)
setAnchorPoint(anchorPoint: anchor, forView: self.imgView)
let hDegree = (CGFloat(horizontalDegree) * .pi) / 180
let vDegree = (CGFloat(verticalDegree) * .pi) / 180
let rDegree = (CGFloat(rotateDegree) * .pi) / 180
transform = CATransform3DRotate(transform, vDegree , 1, 0, 0)
transform = CATransform3DRotate(transform, hDegree , 0, 1, 0)
transform = CATransform3DRotate(transform, rDegree , 0, 0, 1)
return transform
}
func setAnchorPoint(anchorPoint: CGPoint, forView view: UIView) {
var newPoint = CGPoint(x: view.bounds.size.width * anchorPoint.x, y: view.bounds.size.height * anchorPoint.y)
var oldPoint = CGPoint(x: view.bounds.size.width * view.layer.anchorPoint.x, y: view.bounds.size.height * view.layer.anchorPoint.y)
newPoint = newPoint.applying(view.transform)
oldPoint = oldPoint.applying(view.transform)
var position = view.layer.position
position.x -= oldPoint.x
position.x += newPoint.x
position.y -= oldPoint.y
position.y += newPoint.y
print("Anchor: \(anchorPoint)")
view.layer.position = position
view.layer.anchorPoint = anchorPoint
}
you only need to call the function with your degree. for example:
var transform = makeTransform(horizontalDegree: 20.0 , verticalDegree: 25.0, maxVertical: 25, rotateDegree: 20, maxHorizontal: 25)
imgView.layer.transform = transform
I have stopped using ORMs.
The reason is not any great flaw in the concept. Hibernate works well. Instead, I have found that queries have low overhead and I can fit lots of complex logic into large SQL queries, and shift a lot of my processing into the database.
So consider just using the JDBC package.
The simple way to make the browser downloads a file is to make the request like that:
function downloadFile(urlToSend) {
var req = new XMLHttpRequest();
req.open("GET", urlToSend, true);
req.responseType = "blob";
req.onload = function (event) {
var blob = req.response;
var fileName = req.getResponseHeader("fileName") //if you have the fileName header available
var link=document.createElement('a');
link.href=window.URL.createObjectURL(blob);
link.download=fileName;
link.click();
};
req.send();
}
This opens the browser download pop up.
We need to implement two layouts. One to hold listview and another to hold row item of listview. Implement your own custom adapter. Idea is to include one textview and one imageview.
public View getView(int position, View convertView, ViewGroup parent) {
// TODO Auto-generated method stub
LayoutInflater inflater = (LayoutInflater) context
.getSystemService(Context.LAYOUT_INFLATER_SERVICE);
View single_row = inflater.inflate(R.layout.list_row, null,
true);
TextView textView = (TextView) single_row.findViewById(R.id.textView);
ImageView imageView = (ImageView) single_row.findViewById(R.id.imageView);
textView.setText(color_names[position]);
imageView.setImageResource(image_id[position]);
return single_row;
}
Next we implement functionality in main activity to include images and text data dynamically during runtime. You can pass dynamically created text array and image id array to the constructor of custom adapter.
Customlistadapter adapter = new Customlistadapter(this, image_id, text_name);
I guess that '$PATH_TO_SOMEWHERE'
is something like '<directory>/*'
.
In this case, I would change the code to:
find <directory> -maxdepth 1 -type d -exec ... \;
find <directory> -maxdepth 1 -type f -name "*.txt" -exec ... \;
If you want to do something more complicated with the directory and text file names, you could:
find <directory> -maxdepth 1 -type d | while read dir; do echo $dir; ...; done
find <directory> -maxdepth 1 -type f -name "*.txt" | while read txtfile; do echo $txtfile; ...; done
If you have spaces in your file names, you could:
find <directory> -maxdepth 1 -type d | xargs ...
find <directory> -maxdepth 1 -type f -name "*.txt" | xargs ...
In this line:
Aboutme.Text = String.Format("{2}", reader.GetString(0));
The token {2} is invalid because you only have one item in the parms. Use this instead:
Aboutme.Text = String.Format("{0}", reader.GetString(0));
Try to install x86 version of XAMPP. The default XAMPP version on their website is x64 (maybe because I'm using x64 Windows 7). download link here
Thank you guys for all your help! Finally I was able to make it work perfectly thanks to a friend and also you! Here is the final code so you can also see how we solve it.
Thanks again!
Option Explicit
Sub k()
Dim x As Integer, i As Integer, a As Integer
Dim name As String
'name = InputBox("Please insert the name of the sheet")
i = 1
name = "Reserva"
Sheets(name).Cells(4, 57) = Sheets(name).Cells(4, 56)
On Error GoTo fim
x = Sheets(name).Cells(4, 56).Value
Application.Calculation = xlCalculationManual
Do While Not IsEmpty(Sheets(name).Cells(i + 4, 56))
a = 0
If Sheets(name).Cells(4 + i, 56) <> x Then
If Sheets(name).Cells(4 + i, 56) <> 0 Then
If Sheets(name).Cells(4 + i, 56) = 3 Then
a = x
Sheets(name).Cells(4 + i, 57) = Sheets(name).Cells(4 + i, 56) - x
x = Cells(4 + i, 56) - x
End If
Sheets(name).Cells(4 + i, 57) = Sheets(name).Cells(4 + i, 56) - a
x = Sheets(name).Cells(4 + i, 56) - a
Else
Cells(4 + i, 57) = ""
End If
Else
Cells(4 + i, 57) = ""
End If
i = i + 1
Loop
Application.Calculation = xlCalculationAutomatic
Exit Sub
fim:
MsgBox Err.Description
Application.Calculation = xlCalculationAutomatic
End Sub
Please note that I posted this answer before the accepted answer. It's not correct. It's just a step forward from the solution in the question. I have edited the accepted question to show both the author's implementation and the final implementation I had used.
Based on comments and the linked migration document, I've made a few changes to the code:
In template:
<input type="text" v-on:input="debounceInput" v-model="searchInput">
In script:
watch: {
searchInput: function () {
this.debounceInput();
}
},
And the method that sets the filter key stays the same:
methods: {
debounceInput: _.debounce(function () {
this.filterKey = this.searchInput;
}, 500)
}
This looks like there is one less call (just the v-model
, and not the v-on:input
).
Did you set the section header height in the viewDidLoad?
self.tableView.sectionHeaderHeight = 70
Plus you should replace
self.view.addSubview(view)
by
view.addSubview(label)
Finally you have to check your frames
let view = UIView(frame: CGRect.zeroRect)
and eventually the desired text color as it seems to be currently white on white.
That works better with this :
var fso = new ActiveXObject("Scripting.FileSystemObject");
var a = fso.CreateTextFile("c:\\testfile.txt", true);
a.WriteLine("This is a test.");
a.Close();
http://msdn.microsoft.com/en-us/library/5t9b5c0c(v=vs.84).aspx
My understanding of the words "If the function modifies that value, the modifications appear also within the scope of the calling function for both passing by value and by reference" is that they are an error.
Modifications made in a called function are not in scope of the calling function when passing by value.
Either you have mistyped the quoted words or they have been extracted out of whatever context made what appears to be wrong, right.
Could you please ensure you have correctly quoted your source and if there are no errors there give more of the text surrounding that statement in the source material.
I also faced the same issue. I did the following and it worked for me:
bitBucket/
git website, and add this key to your profile. This way, the server knows that you are a legitimate user accessing from a legitimate system. you need to add in web.config
<endpoint address="customBinding" binding="customBinding" bindingConfiguration="basicConfig" contract="WcfRest.IService1"/>
<bindings>
<customBinding>
<binding name="basicConfig">
<binaryMessageEncoding/>
<httpTransport transferMode="Streamed" maxReceivedMessageSize="67108864"/>
</binding>
</customBinding>
If you want to find out whether a whole word is in a space-separated list of words, simply use:
def contains_word(s, w):
return (' ' + w + ' ') in (' ' + s + ' ')
contains_word('the quick brown fox', 'brown') # True
contains_word('the quick brown fox', 'row') # False
This elegant method is also the fastest. Compared to Hugh Bothwell's and daSong's approaches:
>python -m timeit -s "def contains_word(s, w): return (' ' + w + ' ') in (' ' + s + ' ')" "contains_word('the quick brown fox', 'brown')"
1000000 loops, best of 3: 0.351 usec per loop
>python -m timeit -s "import re" -s "def contains_word(s, w): return re.compile(r'\b({0})\b'.format(w), flags=re.IGNORECASE).search(s)" "contains_word('the quick brown fox', 'brown')"
100000 loops, best of 3: 2.38 usec per loop
>python -m timeit -s "def contains_word(s, w): return s.startswith(w + ' ') or s.endswith(' ' + w) or s.find(' ' + w + ' ') != -1" "contains_word('the quick brown fox', 'brown')"
1000000 loops, best of 3: 1.13 usec per loop
Edit: A slight variant on this idea for Python 3.6+, equally fast:
def contains_word(s, w):
return f' {w} ' in f' {s} '
Open your Android SDK Manager and ensure that you download/install a system image for the API level you are developing with.
include.prepload.js file will have a line something like below. probably as the last line.
//# sourceMappingURL=include.prepload.js.map
Delete it and the error will go away.
Assuming that both your directories are real Python packages (do have the __init__.py
file inside them), here is a safe solution for inclusion of modules relatively to the location of the script.
I assume that you want to do this, because you need to include a set of modules with your script. I use this in production in several products and works in many special scenarios like: scripts called from another directory or executed with python execute instead of opening a new interpreter.
import os, sys, inspect
# realpath() will make your script run, even if you symlink it :)
cmd_folder = os.path.realpath(os.path.abspath(os.path.split(inspect.getfile( inspect.currentframe() ))[0]))
if cmd_folder not in sys.path:
sys.path.insert(0, cmd_folder)
# Use this if you want to include modules from a subfolder
cmd_subfolder = os.path.realpath(os.path.abspath(os.path.join(os.path.split(inspect.getfile( inspect.currentframe() ))[0],"subfolder")))
if cmd_subfolder not in sys.path:
sys.path.insert(0, cmd_subfolder)
# Info:
# cmd_folder = os.path.dirname(os.path.abspath(__file__)) # DO NOT USE __file__ !!!
# __file__ fails if the script is called in different ways on Windows.
# __file__ fails if someone does os.chdir() before.
# sys.argv[0] also fails, because it doesn't not always contains the path.
As a bonus, this approach does let you force Python to use your module instead of the ones installed on the system.
Warning! I don't really know what is happening when current module is inside an egg
file. It probably fails too.
ActiveXObject
is available only on IE browser. So every other useragent will throw an error
On modern browser you could use instead File API or File writer API (currently implemented only on Chrome)
Credit must be given to IronRazerz in a response to TextBox watermark (CueBanner) which goes away when user types in single line TextBox (not for RichTextBox).
You will need to declare the following in your class:
private const int CB_SETCUEBANNER = 0x1703;
[System.Runtime.InteropServices.DllImport("user32.dll", CharSet = System.Runtime.InteropServices.CharSet.Auto)]
private static extern int SendMessage(IntPtr hWnd, int msg, int wParam, [System.Runtime.InteropServices.MarshalAs(System.Runtime.InteropServices.UnmanagedType.LPWStr)]string lParam);
Then you can use it with something like:
SendMessage(this.comboBox1.Handle, CB_SETCUEBANNER, 0, "Please select an item...");
This is assuming the Combo Box's DropDownStyle
is set to DropDownList
, as is the original poster's question.
This should result in something like the following:
Displaying an Image
in WPF is much easier than that. Try this:
<Image Source="{Binding DisplayedImagePath}" HorizontalAlignment="Left"
Margin="0,0,0,0" Name="image1" Stretch="Fill" VerticalAlignment="Bottom"
Grid.Row="8" Width="200" Grid.ColumnSpan="2" />
And the property can just be a string
:
public string DisplayedImage
{
get { return @"C:\Users\Public\Pictures\Sample Pictures\Chrysanthemum.jpg"; }
}
Although you really should add your images to a folder named Images
in the root of your project and set their Build Action to Resource in the Properties Window in Visual Studio... you could then access them using this format:
public string DisplayedImage
{
get { return "/AssemblyName;component/Images/ImageName.jpg"; }
}
UPDATE >>>
As a final tip... if you ever have a problem with a control not working as expected, simply type 'WPF', the name of that control and then the word 'class' into a search engine. In this case, you would have typed 'WPF Image Class'. The top result will always be MSDN and if you click on the link, you'll find out all about that control and most pages have code examples as well.
UPDATE 2 >>>
If you followed the examples from the link to MSDN and it's not working, then your problem is not the Image
control. Using the string
property that I suggested, try this:
<StackPanel>
<Image Source="{Binding DisplayedImagePath}" />
<TextBlock Text="{Binding DisplayedImagePath}" />
</StackPanel>
If you can't see the file path in the TextBlock
, then you probably haven't set your DataContext
to the instance of your view model. If you can see the text, then the problem is with your file path.
UPDATE 3 >>>
In .NET 4, the above Image.Source
values would work. However, Microsoft made some horrible changes in .NET 4.5 that broke many different things and so in .NET 4.5, you'd need to use the full pack
path like this:
<Image Source="pack://application:,,,/AssemblyName;component/Images/image_to_use.png">
For further information on pack URIs, please see the Pack URIs in WPF page on Microsoft Docs.
You can use SimlpeDateFormat to format your date like this:
long unixSeconds = 1372339860;
// convert seconds to milliseconds
Date date = new java.util.Date(unixSeconds*1000L);
// the format of your date
SimpleDateFormat sdf = new java.text.SimpleDateFormat("yyyy-MM-dd HH:mm:ss z");
// give a timezone reference for formatting (see comment at the bottom)
sdf.setTimeZone(java.util.TimeZone.getTimeZone("GMT-4"));
String formattedDate = sdf.format(date);
System.out.println(formattedDate);
The pattern that SimpleDateFormat
takes if very flexible, you can check in the javadocs all the variations you can use to produce different formatting based on the patterns you write given a specific Date
. http://docs.oracle.com/javase/7/docs/api/java/text/SimpleDateFormat.html
Date
provides a getTime()
method that returns the milliseconds since EPOC, it is required that you give to SimpleDateFormat
a timezone to format the date properly acording to your timezone, otherwise it will use the default timezone of the JVM (which if well configured will anyways be right)class Class;
std::vector<Class*> vec = some_data;
for (unsigned int i=vec.size(); i>0;) {
--i;
delete vec[i];
vec.pop_back();
}
// Free memory, efficient for large sized vector
vec.shrink_to_fit();
Performance: theta(n)
If pure objects (not recommended for large data types, then just vec.clear();
as suggested in git status
,
Unmerged paths:
(use "git add <file>..." to mark resolution)
both modified: a.jl
both modified: b.jl
I used git add
to finish the merging, then git checkout
works fine.
You can also get the type without assembly qualified name but with the dll name also, for example:
Type myClassType = Type.GetType("TypeName,DllName");
I had the same situation and it worked for me. I needed an object of type "DataModel.QueueObject" and had a reference to "DataModel" so I got the type as follows:
Type type = Type.GetType("DataModel.QueueObject,DataModel");
The second string after the comma is the reference name (dll name).
Here is some PowerShell that creates a single TypeScript definition file a library that includes multiple *.js
files with modern JavaScript.
First, change all the extensions to .ts
.
Get-ChildItem | foreach { Rename-Item $_ $_.Name.Replace(".js", ".ts") }
Second, use the TypeScript compiler to generate definition files. There will be a bunch of compiler errors, but we can ignore those.
Get-ChildItem | foreach { tsc $_.Name }
Finally, combine all the *.d.ts
files into one index.d.ts
, removing the import
statements and removing the default
from each export statement.
Remove-Item index.d.ts;
Get-ChildItem -Path *.d.ts -Exclude "Index.d.ts" | `
foreach { Get-Content $_ } | `
where { !$_.ToString().StartsWith("import") } | `
foreach { $_.Replace("export default", "export") } | `
foreach { Add-Content index.d.ts $_ }
This ends with a single, usable index.d.ts
file that includes many of the definitions.
I encounter same problem when I setup tomcat and mysql server on VirtualBox VM using chef.
in this case, I think true problem is VirtualBox seems to assign non-localhost address to eth0 like
[vagrant@localhost webapps]$ /sbin/ifconfig
eth0 Link encap:Ethernet HWaddr 08:00:27:60:FC:47
inet addr:10.0.2.15 Bcast:10.0.2.255 Mask:255.255.255.0
then auto-detection feature of chef's recipe using 10.0.2.15 as mysql server bind address.
so specify bind address for node params of chef's recipe solve problem in my case. I hope this information helps people using chef with vagrant.
{
"name" : "db",
"default_attributes" : {
"mysql" : {
"bind_address" : "localhost"
...
}
If you're writing Python using Sublime and getting indentation errors,
view -> indentation -> convert indentation to spaces
The issue I'm describing is caused by the Sublime text editor. The same issue could be caused by other editors as well. Essentially, the issue has to do with Python wanting to treat indentations in terms of spaces versus various editors coding the indentations in terms of tabs.
.then()
These are the disadvantages of .done()
resolve()
call (all .done()
handlers will be executed synchronous)resolve()
might get an exception from registered .done()
handlers(!).done()
half-kills the deferred:
.done()
handlers will be silently skippedI thought temporarily that .then(oneArgOnly)
always requires .catch()
so that no exception gets silently ignored, but that is not true any more: the unhandledrejection
event logs unhandled .then()
exceptions on the console (as default). Very reasonable! No reason left to use .done()
at all.
The following code snippet reveals, that:
.done()
handlers will be called synchronous at point of resolve()
.done()
influences resolve()
caller
resolve()
.done()
resolution
.then()
has none of these problems
unhandledrejection
is seems)Btw, exceptions from .done()
can’t be properly caught: because of the synchronous pattern of .done()
, the error is either thrown at the point of .resolve()
(might be library code!) or at the .done()
call which attaches the culprit if the deferred is already resolved.
console.log('Start of script.');_x000D_
let deferred = $.Deferred();_x000D_
// deferred.resolve('Redemption.');_x000D_
deferred.fail(() => console.log('fail()'));_x000D_
deferred.catch(()=> console.log('catch()'));_x000D_
deferred.done(() => console.log('1-done()'));_x000D_
deferred.then(() => console.log('2-then()'));_x000D_
deferred.done(() => console.log('3-done()'));_x000D_
deferred.then(() =>{console.log('4-then()-throw');_x000D_
throw 'thrown from 4-then()';});_x000D_
deferred.done(() => console.log('5-done()'));_x000D_
deferred.then(() => console.log('6-then()'));_x000D_
deferred.done(() =>{console.log('7-done()-throw');_x000D_
throw 'thrown from 7-done()';});_x000D_
deferred.done(() => console.log('8-done()'));_x000D_
deferred.then(() => console.log('9-then()'));_x000D_
_x000D_
console.log('Resolving.');_x000D_
try {_x000D_
deferred.resolve('Solution.');_x000D_
} catch(e) {_x000D_
console.log(`Caught exception from handler_x000D_
in resolve():`, e);_x000D_
}_x000D_
deferred.done(() => console.log('10-done()'));_x000D_
deferred.then(() => console.log('11-then()'));_x000D_
console.log('End of script.');
_x000D_
<script_x000D_
src="https://code.jquery.com/jquery-3.4.1.min.js"_x000D_
integrity="sha384-vk5WoKIaW/vJyUAd9n/wmopsmNhiy+L2Z+SBxGYnUkunIxVxAv/UtMOhba/xskxh"_x000D_
crossorigin="anonymous"_x000D_
></script>
_x000D_
String s = "-1139627840";
BigInteger bg1 = new BigInteger(s);
System.out.println(bg1.abs());
Alternatively:
int i = -123;
System.out.println(Math.abs(i));
try this one.
lastDateofTheMonth = new Date(year, month, 0)
example:
new Date(2012, 8, 0)
output:
Date {Fri Aug 31 2012 00:00:00 GMT+0900 (Tokyo Standard Time)}
This fixed my issue:
I had the same problem. I solved it by adding my OAuth redirect URI as a argument to the getAccessToken function call:
$redirectLoginHelper->getAccessToken("https://www.example.com/myfacebookcallback")
If no argument is sent into that function the SDK generates the redirect URI by itself which should work but in my case it didn't.
Hope this helps someone.
Check also that you don't have this turned on: Configuration Properties -> C/C++ -> Preprocessor -> Preprocess to a File.
Proxies are classes that are created and loaded at runtime. There is no source code for these classes. I know that you are wondering how you can make them do something if there is no code for them. The answer is that when you create them, you specify an object that implements InvocationHandler
, which defines a method that is invoked when a proxy method is invoked.
You create them by using the call
Proxy.newProxyInstance(classLoader, interfaces, invocationHandler)
The arguments are:
classLoader
. Once the class is generated, it is loaded with this class loader.interfaces
. An array of class objects that must all be interfaces. The resulting proxy implements all of these interfaces.invocationHandler
. This is how your proxy knows what to do when a method is invoked. It is an object that implements InvocationHandler
. When a method from any of the supported interfaces, or hashCode
, equals
, or toString
, is invoked, the method invoke
is invoked on the handler, passing the Method
object for the method to be invoked and the arguments passed.For more on this, see the documentation for the Proxy
class.
Every implementation of a JVM after version 1.3 must support these. They are loaded into the internal data structures of the JVM in an implementation-specific way, but it is guaranteed to work.
If you have an NSRange
, bridging to NSString
works seamlessly. For example, I was doing some work with UITextFieldDelegate
and I quickly wanted to compute the new string value when it asked if it should replace the range.
func textField(textField: UITextField, shouldChangeCharactersInRange range: NSRange, replacementString string: String) -> Bool {
let newString = (textField.text as NSString).stringByReplacingCharactersInRange(range, withString: string)
println("Got new string: ", newString)
}
To fix this using SQL SERVER Management Studio
Your problem: You get an error such as 'Cannot attach the file 'YourDB.mdf' as database 'YourConnStringNamedContext';
Reason: happens because you deleted the backing files .mdf, ldf without actually deleting the database within the running instance of SqlLocalDb; re-running the code in VS won't help because you cannot re-create a DB with the same name (and that's why renaming works, but leaves the old phantom db name lying around).
The Fix: I am using VS2012, adopt similarly for a different version.
Navigate to below path and enter
c:\program files\microsoft sql server\110\Tools\Binn>sqllocaldb info
Above cmd shows the instance names, including 'v11.0'
If the instance is already running, enter at the prompt
sqllocaldb info v11.0
Note the following info Owner: YourPCName\Username , State: Running , Instance pipe name: np:\.\pipe\LOCALDB#12345678\tsql\query , where 123456789 is some random alphanumeric
If State is not running or stopped, start the instance with
sqllocaldb start v11.0
and extract same info as above.
In the SS Management Studio 'Connect' dialog box enter
server name: np:\.\pipe\LOCALDB#12345678\tsql\query
auth: Windows auth
user name: (same as Owner, it is grayed out for Win. auth.)
Once connected, find the phantom DB which you deleted (e.g. YourDB.mdf should have created a db named YourDB), and really delete it.
Done! Once it's gone, VS EF should have no problem re-creating it.
If you want to empty all input boxes irrespective of its type then it's a minute step by
$('#MyFormId')[0].reset();
You can use :enabled pseudo-class, but notice IE<9
does not support it:
button:hover:enabled{
/*your styles*/
}
button:active:enabled{
/*your styles*/
}
How about...
console = { log : function(text) { alert(text); } }
In httpd.conf add (or change if it's already there):
AddDefaultCharset utf-8
First, you split the data using split
:
split(z,z$Group)
Than, for each chunk, select the row with max Score:
lapply(split(z,z$Group),function(chunk) chunk[which.max(chunk$Score),])
Finally reduce back to a data.frame do.call
ing rbind
:
do.call(rbind,lapply(split(z,z$Group),function(chunk) chunk[which.max(chunk$Score),]))
Result:
Group Score Info
1 1 3 c
2 2 4 d
One line, no magic spells, fast, result has good names =)
You should just be able to use the savefig
method of sns_plot
directly.
sns_plot.savefig("output.png")
For clarity with your code if you did want to access the matplotlib figure that sns_plot
resides in then you can get it directly with
fig = sns_plot.fig
In this case there is no get_figure
method as your code assumes.
Chrome needs a user interaction for the video to be autoplayed or played via js (video.play()). But the interaction can be of any kind, in any moment. If you just click random on the page, the video will autoplay. I resolved then, adding a button (only on chrome browsers) that says "enable video autoplay". The button does nothing, but just clicking it, is the required user interaction for any further video.
Could be easier and safer this alternative if you have multiple plots:
import matplotlib as m
import matplotlib.pyplot as plt
import numpy as np
cdict = {
'red' : ( (0.0, 0.25, .25), (0.02, .59, .59), (1., 1., 1.)),
'green': ( (0.0, 0.0, 0.0), (0.02, .45, .45), (1., .97, .97)),
'blue' : ( (0.0, 1.0, 1.0), (0.02, .75, .75), (1., 0.45, 0.45))
}
cm = m.colors.LinearSegmentedColormap('my_colormap', cdict, 1024)
x = np.arange(0, 10, .1)
y = np.arange(0, 10, .1)
X, Y = np.meshgrid(x,y)
data = 2*( np.sin(X) + np.sin(3*Y) )
data1 = np.clip(data,0,6)
data2 = np.clip(data,-6,0)
vmin = np.min(np.array([data,data1,data2]))
vmax = np.max(np.array([data,data1,data2]))
fig = plt.figure()
ax = fig.add_subplot(131)
mesh = ax.pcolormesh(data, cmap = cm)
mesh.set_clim(vmin,vmax)
ax1 = fig.add_subplot(132)
mesh1 = ax1.pcolormesh(data1, cmap = cm)
mesh1.set_clim(vmin,vmax)
ax2 = fig.add_subplot(133)
mesh2 = ax2.pcolormesh(data2, cmap = cm)
mesh2.set_clim(vmin,vmax)
# Visualizing colorbar part -start
fig.colorbar(mesh,ax=ax)
fig.colorbar(mesh1,ax=ax1)
fig.colorbar(mesh2,ax=ax2)
fig.tight_layout()
# Visualizing colorbar part -end
plt.show()
The best alternative is then to use a single color bar for the entire plot. There are different ways to do that, this tutorial is very useful for understanding the best option. I prefer this solution that you can simply copy and paste instead of the previous visualizing colorbar part of the code.
fig.subplots_adjust(bottom=0.1, top=0.9, left=0.1, right=0.8,
wspace=0.4, hspace=0.1)
cb_ax = fig.add_axes([0.83, 0.1, 0.02, 0.8])
cbar = fig.colorbar(mesh, cax=cb_ax)
I would suggest using pcolormesh
instead of pcolor
because it is faster (more infos here ).
If you need to convert ALL columns to strings, you can simply use:
df = df.astype(str)
This is useful if you need everything except a few columns to be strings/objects, then go back and convert the other ones to whatever you need (integer in this case):
df[["D", "E"]] = df[["D", "E"]].astype(int)
Basically, when you serialize arrays or objects you simply turn it to a valid string format so that you can easily store them outside of the php script.
Note for object you should use magic __sleep and __wakeup methods. __sleep is called by serialize(). A sleep method will return an array of the values from the object that you want to persist.
__wakeup is called by unserialize(). A wakeup method should take the unserialized values and initialize them in them in the object.
For passing data between php and js you would use json_encode to turn php array to valid json format. Or other way round - use JSON.parese() to convert a output data (string) into valid json object. You would want to do that to make use of local storage. (offline data access)
That's easy!
First, give your button an id
such as <input type="button" value="I am a button!" id="myButton" />
Then, for height, and width, use CSS code:
.myButton {
width: 100px;
height: 100px;
}
You could also do this CSS:
input[type="button"] {
width: 100px;
height: 100px;
}
But that would affect all the buttons on the Page.
Working example - JSfiddle
Make sure you format the string like this or it wont work
$content = "BEGIN:VCALENDAR\n".
"VERSION:2.0\n".
"PRODID:-//hacksw/handcal//NONSGML v1.0//EN\n".
"BEGIN:VEVENT\n".
"UID:".uniqid()."\n".
"DTSTAMP:".$time."\n".
"DTSTART:".$time."\n".
"DTEND:".$time."\n".
"SUMMARY:".$summary."\n".
"END:VEVENT\n".
"END:VCALENDAR";
You simply pass the FormControl an array of validators.
Here's an example showing how you can add validators to an existing FormControl:
this.form.controls["firstName"].setValidators([Validators.minLength(1), Validators.maxLength(30)]);
Note, this will reset any existing validators you added when you created the FormControl.
Change the
private static final long serialVersionUID = 1L;
to any other value like
private static final long serialVersionUID = 102831973239L;
also you can generate it automatically in eclipse.
It is because each servlet in a app has a unique id.and tomcat causes problem with two servlets having same id...
I would NOT use mach_absolute_time()
because it queries a combination of the kernel and the processor for an absolute time using ticks (probably an uptime).
What I would use:
CFAbsoluteTimeGetCurrent();
This function is optimized to correct the difference in the iOS and OSX software and hardware.
Something Geekier
The quotient of a difference in mach_absolute_time()
and AFAbsoluteTimeGetCurrent()
is always around 24000011.154871
Here is a log of my app:
Please note that final result time is a difference in CFAbsoluteTimeGetCurrent()
's
2012-03-19 21:46:35.609 Rest Counter[3776:707] First Time: 353900795.609040
2012-03-19 21:46:36.360 Rest Counter[3776:707] Second Time: 353900796.360177
2012-03-19 21:46:36.361 Rest Counter[3776:707] Final Result Time (difference): 0.751137
2012-03-19 21:46:36.363 Rest Counter[3776:707] Mach absolute time: 18027372
2012-03-19 21:46:36.365 Rest Counter[3776:707] Mach absolute time/final time: 24000113.153295
2012-03-19 21:46:36.367 Rest Counter[3776:707] -----------------------------------------------------
2012-03-19 21:46:43.074 Rest Counter[3776:707] First Time: 353900803.074637
2012-03-19 21:46:43.170 Rest Counter[3776:707] Second Time: 353900803.170256
2012-03-19 21:46:43.172 Rest Counter[3776:707] Final Result Time (difference): 0.095619
2012-03-19 21:46:43.173 Rest Counter[3776:707] Mach absolute time: 2294833
2012-03-19 21:46:43.175 Rest Counter[3776:707] Mach absolute time/final time: 23999753.727777
2012-03-19 21:46:43.177 Rest Counter[3776:707] -----------------------------------------------------
2012-03-19 21:46:46.499 Rest Counter[3776:707] First Time: 353900806.499199
2012-03-19 21:46:55.017 Rest Counter[3776:707] Second Time: 353900815.016985
2012-03-19 21:46:55.018 Rest Counter[3776:707] Final Result Time (difference): 8.517786
2012-03-19 21:46:55.020 Rest Counter[3776:707] Mach absolute time: 204426836
2012-03-19 21:46:55.022 Rest Counter[3776:707] Mach absolute time/final time: 23999996.639500
2012-03-19 21:46:55.024 Rest Counter[3776:707] -----------------------------------------------------
Well, one classic example is where you wanted to get a list of employees and their immediate managers:
select e.employee as employee, b.employee as boss
from emptable e, emptable b
where e.manager_id = b.empolyee_id
order by 1
It's basically used where there is any relationship between rows stored in the same table.
And so on...
While disabling all "touchmove" events might seem like a good idea, as soon as you need other scrollable elements on the page it will cause problems. On top of that, if you only disable "touchmove" events on certain elements (e.g. body if you want the page to be non-scrollable), as soon as it is enabled anywhere else, IOS will cause unstoppable propagation in Chrome when the URL bar toggles.
While I cannot explain this behavior, it looks like the only way to prevent seems to set the body's position to fixed
. The only problem doing is that you will lose the position of the document - this is especially annoying in modals for example. One way to solve it would be to use these simple VanillaJS functions:
function disableDocumentScrolling() {
if (document.documentElement.style.position != 'fixed') {
// Get the top vertical offset.
var topVerticalOffset = (typeof window.pageYOffset != 'undefined') ?
window.pageYOffset : (document.documentElement.scrollTop ?
document.documentElement.scrollTop : 0);
// Set the document to fixed position (this is the only way around IOS' overscroll "feature").
document.documentElement.style.position = 'fixed';
// Set back the offset position by user negative margin on the fixed document.
document.documentElement.style.marginTop = '-' + topVerticalOffset + 'px';
}
}
function enableDocumentScrolling() {
if (document.documentElement.style.position == 'fixed') {
// Remove the fixed position on the document.
document.documentElement.style.position = null;
// Calculate back the original position of the non-fixed document.
var scrollPosition = -1 * parseFloat(document.documentElement.style.marginTop);
// Remove fixed document negative margin.
document.documentElement.style.marginTop = null;
// Scroll to the original position of the non-fixed document.
window.scrollTo(0, scrollPosition);
}
}
Using this solution you can have a fixed document and any other element in your page can overflow by using simple CSS (e.g., overflow: scroll;
). No need for special classes or anything else.
This is just a guess, but I think your editor actually matches every single digit — 1
2
3
— but only odd matches are highlighted, to distinguish it from the case when the whole 123
string is matched.
Most regex consoles highlight contiguous matches with different colors, but due to the plugin settings, terminal limitations or for some other reason, only every other group might be highlighted in your case.
You'll need two slightly different conversions.
To convert from Time
to DateTime
you can amend the Time class as follows:
require 'date'
class Time
def to_datetime
# Convert seconds + microseconds into a fractional number of seconds
seconds = sec + Rational(usec, 10**6)
# Convert a UTC offset measured in minutes to one measured in a
# fraction of a day.
offset = Rational(utc_offset, 60 * 60 * 24)
DateTime.new(year, month, day, hour, min, seconds, offset)
end
end
Similar adjustments to Date will let you convert DateTime
to Time
.
class Date
def to_gm_time
to_time(new_offset, :gm)
end
def to_local_time
to_time(new_offset(DateTime.now.offset-offset), :local)
end
private
def to_time(dest, method)
#Convert a fraction of a day to a number of microseconds
usec = (dest.sec_fraction * 60 * 60 * 24 * (10**6)).to_i
Time.send(method, dest.year, dest.month, dest.day, dest.hour, dest.min,
dest.sec, usec)
end
end
Note that you have to choose between local time and GM/UTC time.
Both the above code snippets are taken from O'Reilly's Ruby Cookbook. Their code reuse policy permits this.
You can start web pages using command line in any browser typing this command
cd %your chrome directory%
start /max http://google.com
save it as bat and run it :)
The operations needed to be performed, require numpy arrays either created via
np.array()
or can be converted from list to an array via
np.stack()
As in the above mentioned case, 2 lists are inputted as operands it triggers the error.
Another trick not yet mentioned is to have the class which implements a property (e.g. Foo
of type Bar
) also define a delegate delegate void ActByRef<T1,T2>(ref T1 p1, ref T2 p2);
and implement a method ActOnFoo<TX1>(ref Bar it, ActByRef<Bar,TX1> proc, ref TX1 extraParam1)
(and possibly versions for two and three "extra parameters" as well) which will pass its internal representation of Foo
to the supplied procedure as a ref
parameter. This has a couple of big advantages over other methods of working with the property:
Passing things be ref
is an excellent pattern; too bad it's not used more.
In addition to the technical answer, javascript:void
means the author is Doing It Wrong.
There is no good reason to use a javascript:
pseudo-URL(*). In practice it will cause confusion or errors should anyone try things like ‘bookmark link’, ‘open link in a new tab’, and so on. This happens quite a lot now people have got used to middle-click-for-new-tab: it looks like a link, you want to read it in a new tab, but it turns out to be not a real link at all, and gives unwanted results like a blank page or a JS error when middle-clicked.
<a href="#">
is a common alternative which might arguably be less bad. However you must remember to return false
from your onclick
event handler to prevent the link being followed and scrolling up to the top of the page.
In some cases there may be an actual useful place to point the link to. For example if you have a control you can click on that opens up a previously-hidden <div id="foo">
, it makes some sense to use <a href="#foo">
to link to it. Or if there is a non-JavaScript way of doing the same thing (for example, ‘thispage.php?show=foo’ that sets foo visible to begin with), you can link to that.
Otherwise, if a link points only to some script, it is not really a link and should not be marked up as such. The usual approach would be to add the onclick
to a <span>
, <div>
, or an <a>
without an href
and style it in some way to make it clear you can click on it. This is what StackOverflow [did at the time of writing; now it uses href="#"
].
The disadvantage of this is that you lose keyboard control, since you can't tab onto a span/div/bare-a or activate it with space. Whether this is actually a disadvantage depends on what sort of action the element is intended to take. You can, with some effort, attempt to mimic the keyboard interactability by adding a tabIndex
to the element, and listening for a Space keypress. But it's never going to 100% reproduce the real browser behaviour, not least because different browsers can respond to the keyboard differently (not to mention non-visual browsers).
If you really want an element that isn't a link but which can be activated as normal by mouse or keyboard, what you want is a <button type="button">
(or <input type="button">
is just as good, for simple textual contents). You can always use CSS to restyle it so it looks more like a link than a button, if you want. But since it behaves like a button, that's how really you should mark it up.
(*: in site authoring, anyway. Obviously they are useful for bookmarklets. javascript:
pseudo-URLs are a conceptual bizarreness: a locator that doesn't point to a location, but instead calls active code inside the current location. They have caused massive security problems for both browsers and webapps, and should never have been invented by Netscape.)
i agree with alf's answer,but little modification to it is,, to use,
try
{
control_name.Click -= event_Click;
main_browser.Document.Click += Document_Click;
}
catch(Exception exce)
{
main_browser.Document.Click += Document_Click;
}
There is a difference if:
int main()
{
for(int i(0); i<2; printf("i = post increment in loop %d\n", i++))
{
cout << "inside post incement = " << i << endl;
}
for(int i(0); i<2; printf("i = pre increment in loop %d\n",++i))
{
cout << "inside pre incement = " << i << endl;
}
return 0;
}
The result:
inside post incement = 0
i = post increment in loop 0
inside post incement = 1
i = post increment in loop 1
The second for loop:
inside pre incement = 0
i = pre increment in loop 1
inside pre incement = 1
i = pre increment in loop 2
DEFAULT
is the value that will be inserted in the absence of an explicit value in an insert / update statement. Lets assume, your DDL did not have the NOT NULL
constraint:
ALTER TABLE tbl ADD COLUMN col VARCHAR(20) DEFAULT 'MyDefault'
Then you could issue these statements
-- 1. This will insert 'MyDefault' into tbl.col
INSERT INTO tbl (A, B) VALUES (NULL, NULL);
-- 2. This will insert 'MyDefault' into tbl.col
INSERT INTO tbl (A, B, col) VALUES (NULL, NULL, DEFAULT);
-- 3. This will insert 'MyDefault' into tbl.col
INSERT INTO tbl (A, B, col) DEFAULT VALUES;
-- 4. This will insert NULL into tbl.col
INSERT INTO tbl (A, B, col) VALUES (NULL, NULL, NULL);
Alternatively, you can also use DEFAULT
in UPDATE
statements, according to the SQL-1992 standard:
-- 5. This will update 'MyDefault' into tbl.col
UPDATE tbl SET col = DEFAULT;
-- 6. This will update NULL into tbl.col
UPDATE tbl SET col = NULL;
Note, not all databases support all of these SQL standard syntaxes. Adding the NOT NULL
constraint will cause an error with statements 4, 6
, while 1-3, 5
are still valid statements. So to answer your question: No, they're not redundant.
I came up with this. Maybe you can improve it. Especially the method of generating the quantiles of the distribution seems cumbersome to me.
You could replace np.random.normal
with any other distribution from np.random
to compare data against other distributions.
#!/bin/python
import numpy as np
measurements = np.random.normal(loc = 20, scale = 5, size=100000)
def qq_plot(data, sample_size):
qq = np.ones([sample_size, 2])
np.random.shuffle(data)
qq[:, 0] = np.sort(data[0:sample_size])
qq[:, 1] = np.sort(np.random.normal(size = sample_size))
return qq
print qq_plot(measurements, 1000)
Restarting explorer did this for me, but only for new cmd terminals.
The terminal I set the path could see the new Path variable already (in Windows 7).
taskkill /f /im explorer.exe && explorer.exe
import collections
def find_anagrams(x):
anagrams = [''.join(sorted(list(i))) for i in x]
anagrams_counts = [item for item, count in collections.Counter(anagrams).items() if count > 1]
return [i for i in x if ''.join(sorted(list(i))) in anagrams_counts]
Above answer's holds good.
Just an add-on for anyone who is into async-await rather than promise !!
const findAllFoo = async (req, resp, next) => {
const pageSize = 10;
const currentPage = 1;
try {
const foos = await FooModel.find() // find all documents
.skip(pageSize * (currentPage - 1)) // we will not retrieve all records, but will skip first 'n' records
.limit(pageSize); // will limit/restrict the number of records to display
const numberOfFoos = await FooModel.countDocuments(); // count the number of records for that model
resp.setHeader('max-records', numberOfFoos);
resp.status(200).json(foos);
} catch (err) {
resp.status(500).json({
message: err
});
}
};
I hope this helps:
var token = document.getElementById('token').value;
var nombre = document.getElementById('txtNombre').value;
$("#txtNombre").keyup(function () {
$.ajax({
type: "POST",
url: host() + "Formulario/BuscarNombreAutocompletar/",
data: JSON.stringify({ "nombre": nombre }),
headers: {
'Authorization': 'Bearer ' + token
},
contentType: "application/json; charset=utf-8",
dataType: "json",
success: function (data) {
var dataArray = [];
if (controlCarga(data)) {
$.each(data[1], function (i, item) {
dataArray.push(item.frmNombre)
});
$('#txtNombre').autocomplete({
clearButton: true,
source: dataArray,
selectFirst: true,
minLength: 2
});
}
},
error: function (xhr, textStatus, errorThrown) {
console.log('Error: ' + xhr.responseText);
}
});
});
You're using the default comparator to sort a Set<String>
. In this case, that means lexicographic order. Lexicographically, "12"
comes before "15"
, comes before "5"
.
Either use a Set<Integer>
:
Set<Integer> set=new HashSet<Integer>();
set.add(12);
set.add(15);
set.add(5);
Or use a different comparator:
Collections.sort(list, new Comparator<String>() {
public int compare(String a, String b) {
return Integer.parseInt(a) - Integer.parseInt(b);
}
});
You could add a static method in your enum that accepts an int
as a parameter and returns a PcapLinkType
.
public static PcapLinkType of(int linkType) {
switch (linkType) {
case -1: return DLT_UNKNOWN
case 0: return DLT_NULL;
//ETC....
default: return null;
}
}
Actually, on 32-bit computers a word is 32-bit, but the DWORD type is a leftover from the good old days of 16-bit.
In order to make it easier to port programs to the newer system, Microsoft has decided all the old types will not change size.
You can find the official list here: http://msdn.microsoft.com/en-us/library/aa383751(VS.85).aspx
All the platform-dependent types that changed with the transition from 32-bit to 64-bit end with _PTR (DWORD_PTR will be 32-bit on 32-bit Windows and 64-bit on 64-bit Windows).
Use a BinaryReader object to return a byte array from the stream like:
byte[] fileData = null;
using (var binaryReader = new BinaryReader(Request.Files[0].InputStream))
{
fileData = binaryReader.ReadBytes(Request.Files[0].ContentLength);
}
No there isn't any collection that can contain primitive types when Java Collection Framework is being used.
However, there are other java collections which support primitive types, such as: Trove, Colt, Fastutil, Guava
An example of how an arraylist with ints would be when Trove Library used is the following:
TIntArrayList list= new TIntArrayList();
The performance of this list, when compared with the ArrayList of Integers from Java Collections is much better as the autoboxing/unboxing to the corresponding Integer Wrapper Class is not needed.
You could actually just set the image of the UIButton
to what you would normally put in a UIImageView
. For example, where you would do:
myImageView.image = myUIImage
You could instead use:
myButton.setImage(myUIImage, forState: UIControlState.Normal)
So, here's what your code could look like:
override func viewDidLoad(){
super.viewDidLoad()
var myUIImage: UIImage //set the UIImage here
myButton.setImage(myUIImage, forState: UIControlState.Normal)
}
@IBOutlet var myButton: UIButton!
@IBAction func buttonTap(sender: UIButton!){
//handle the image tap
}
The great thing about using this method is that if you have to load the image from a database, you could set the title of the button before you set the image:
myButton.setTitle("Loading Image...", forState: UIControlState.Normal)
To tell your users that you are loading the image
There is no such functionality in jQuery. Use JSON.stringify
or alternatively any jQuery plugin with similar functionality (e.g jquery-json).
You can delete any QuerySet you'd like. For example, to delete all blog posts with some Post model
Post.objects.all().delete()
and to delete any Post with a future publication date
Post.objects.filter(pub_date__gt=datetime.now()).delete()
You do, however, need to come up with a way to narrow down your QuerySet. If you just want a view to delete a particular object, look into the delete generic view.
EDIT:
Sorry for the misunderstanding. I think the answer is somewhere between. To implement your own, combine ModelForm
s and generic views. Otherwise, look into 3rd party apps that provide similar functionality. In a related question, the recommendation was django-filter.
Now since the GhostDriver comes bundled with the PhantomJS, it has become even more convenient to use it through Selenium.
I tried the Node installation of PhantomJS, as suggested by Pykler, but in practice I found it to be slower than the standalone installation of PhantomJS. I guess standalone installation didn't provided these features earlier, but as of v1.9, it very much does so.
Now you can use like this
import selenium.webdriver
driver = selenium.webdriver.PhantomJS()
driver.get('http://google.com')
# do some processing
driver.quit()
Simply do this
$get = explode('&', $_POST['seri']); // explode with and
foreach ($get as $key => $value) {
$need[substr($value, 0 , strpos($value, '='))] = substr(
$value,
strpos( $value, '=' ) + 1
);
}
// access your query param name=ddd&email=aaaaa&username=wwwww&password=wwww&password=eeee
var_dump($need['name']);
There is no way to "discard" the time component.
DateTime.Today
is the same as:
DateTime d = DateTime.Now.Date;
If you only want to display only the date portion, simply do that - use ToString
with the format string you need.
For example, using the standard format string "D" (long date format specifier):
d.ToString("D");
Here are few pointers/suggestions for investigation
vote
method which creates a fresh HTTP connection.HttpClient
instance to post to the server. This way it wont create too many connections from the client side. HttpClient
needs to be shut and hence call httpclient.getConnectionManager().shutdown();
to release the resources used by the connections. public static void main(String[] args) throws JSONException {
String str = "[{\"name\":\"name1\",\"url\":\"url1\"},{\"name\":\"name2\",\"url\":\"url2\"}]";
JSONArray jsonarray = new JSONArray(str);
for(int i=0; i<jsonarray.length(); i++){
JSONObject obj = jsonarray.getJSONObject(i);
String name = obj.getString("name");
String url = obj.getString("url");
System.out.println(name);
System.out.println(url);
}
}
Output:
name1
url1
name2
url2
In Java 8:
Arrays.sort(files, (a, b) -> a.getName().compareTo(b.getName()));
Reverse order:
Arrays.sort(files, (a, b) -> -a.getName().compareTo(b.getName()));
if you want to do same thing Store Procedure then you need to apply below code.
select (datediff(dd,'+CHAR(39)+ convert(varchar(10),@FromDate ,101)+
CHAR(39)+','+CHAR(39)+ convert(varchar(10),@ToDate ,101) + CHAR(39) +'))
Daysdiff
where @fromdate and @todate is Parameter of the SP
Don't get confused with the concepts of Angular and RxJS
We have pipes concept in Angular and pipe()
function in RxJS.
1) Pipes in Angular: A pipe takes in data as input and transforms it to the desired output
https://angular.io/guide/pipes
2) pipe()
function in RxJS: You can use pipes to link operators together. Pipes let you combine multiple functions into a single function.
The pipe()
function takes as its arguments the functions you want to combine, and returns a new function that, when executed, runs the composed functions in sequence.
https://angular.io/guide/rx-library (search for pipes in this URL, you can find the same)
So according to your question, you are referring pipe()
function in RxJS
You can use .length
with just a descendant selector, like this:
var count = $("#selected li").length;
If you have to use .children()
, then it's like this:
var count = $("#selected ul").children().length;
My understanding is that if you use a View
object (as supposed to eg. android:windowBackground
) Android will automatically scale your image to the correct size. The problem is that too much scaling can result in artifacts (both during up and down scaling) and blurring. Due to various resolutions and aspects ratios on the market, it's impossible to create "perfect" fits for every screen, but you can do your best to make sure only a little bit of scaling has to be done, and thus mitigate the unwanted side effects. So what I would do is:
getDisplayMetrics().density
returns 4 (xxxhdpi), so perhaps this info is outdated.Then look at the new phone models on the market, and find the representative ones. Assumming the new google pixel is a good representation of an android phone: It has a 1080 x 1920 resolution at 441 dpi, and a screen size of 4.4 x 2.5 inches. Then from the the android developer docs:
- ldpi (low) ~120dpi
- mdpi (medium) ~160dpi
- hdpi (high) ~240dpi
- xhdpi (extra-high) ~320dpi
- xxhdpi (extra-extra-high) ~480dpi
- xxxhdpi (extra-extra-extra-high) ~640dpi
This corresponds to an xxhdpi
screen. From here I could scale these 1080 x 1920 down by the (3:4:6:8:12) ratios above.
sw
, long
, large
, etc.<item name="android:windowBackground">@null</item>
Did they add a runtime List<> and/or Map<> type class to typepad 1.0
No, providing a runtime is not the focus of the TypeScript team.
is there a solid library out there someone wrote that provides this functionality?
I wrote (really just ported over buckets to typescript): https://github.com/basarat/typescript-collections
JavaScript / TypeScript now support this natively and you can enable them with lib.d.ts
: https://basarat.gitbooks.io/typescript/docs/types/lib.d.ts.html along with a polyfill if you want
Based in marksyzm answer, this worked for me:
$('input').datepicker({
beforeShow:function(input) {
$(input).css({
"position": "relative",
"z-index": 999999
});
}
});
I had a similar issue when working on Database restore operation on MS SQL Server 2012.
However, for my own scenario, I just needed to see the progress of the DATABASE RESTORE operation in the script window
All I had to do was add the STATS option to the script:
USE master;
GO
ALTER DATABASE mydb SET SINGLE_USER WITH ROLLBACK IMMEDIATE;
GO
RESTORE DATABASE mydb
FROM DISK = 'C:\Program Files\Microsoft SQL Server\MSSQL12.MSSQLSERVER\MSSQL\Backup\my_db_21-08-2020.bak'
WITH REPLACE,
STATS = 10,
RESTART,
MOVE 'my_db' TO 'C:\Program Files\Microsoft SQL Server\MSSQL12.MSSQLSERVER\MSSQL\DATA\my_db.mdf',
MOVE 'my_db_log' TO 'C:\Program Files\Microsoft SQL Server\MSSQL12.MSSQLSERVER\MSSQL\DATA\mydb_log.ldf'
GO
ALTER DATABASE mydb SET MULTI_USER;
GO
And then I switched to the Messages tab of the Script window to see the progress of the DATABASE RESTORE operation:
If you want to get more information after the DATABASE RESTORE operation you can use this command suggested by eythort:
SELECT command, percent_complete, start_time FROM sys.dm_exec_requests where command = 'RESTORE DATABASE'
That's all.
I hope this helps
You can use all Unicode characters and the escape characters \n
and \t
. An example:
document.getElementById("test").onclick = function() {_x000D_
alert(_x000D_
'This is an alert with basic formatting\n\n' _x000D_
+ "\t• list item 1\n" _x000D_
+ '\t• list item 2\n' _x000D_
+ '\t• list item 3\n\n' _x000D_
+ '???????????????????????\n\n' _x000D_
+ 'Simple table\n\n' _x000D_
+ 'Char\t| Result\n' _x000D_
+ '\\n\t| line break\n' _x000D_
+ '\\t\t| tab space'_x000D_
);_x000D_
}
_x000D_
<!DOCTYPE html>_x000D_
<title>Alert formatting</title>_x000D_
<meta charset=utf-8>_x000D_
<button id=test>Click</button>
_x000D_
Result in Firefox:
You get the same look in almost all browsers.
Other than those on the top, you can use JavaScript to fetch the details from the server. html file
<!DOCTYPE html>
<html lang="en" dir="ltr">
<head>
<meta charset="utf-8">
<title></title>
</head>
<body>
<div id="test">
</div>
<script type="text/javascript">
let url="http://localhost:8001/test";
fetch(url).then(response => response.json())
.then( (result) => {
console.log('success:', result)
let div=document.getElementById('test');
div.innerHTML=`title: ${result.title}<br/>message: ${result.message}`;
})
.catch(error => console.log('error:', error));
</script>
</body>
</html>
server.js
app.get('/test',(req,res)=>{
//res.sendFile(__dirname +"/views/test.html",);
res.json({title:"api",message:"root"});
})
app.get('/render',(req,res)=>{
res.sendFile(__dirname +"/views/test.html");
})
The best answer i found on the stack-overflow on the said subject, it's not my answer. Found it somewhere for nearly same question...source source of answer
To collapse all code blocks Ctrl + Shift+ /
To expand all code blocks Ctrl + Shift+ *
pydev:
To collapse all code blocks : Ctrl + 0
To collapse all code blocks : Ctrl + 9
Is there a way to collapse all code blocks in Eclipse?
by @partizanos and @bummi
In my case it was a component.member which was not existing e.g.
[formControl]="personId"
Adding it to the class declaration fixed it
this.personId = new FormControl(...)
Please try like this :
git clone --single-branch --branch <branchname> <url>
replace <branchname>
with your branch and <url>
with your url.
url will be like http://[email protected]:portno/yourrepo.git
.
The Philippe solution but cleaner:
My subtraction data is: '2018-09-22T11:05:00.000Z'
import datetime
import pandas as pd
df_modified = pd.to_datetime(df_reference.index.values) - datetime.datetime(2018, 9, 22, 11, 5, 0)
I had this problem because I forgot to select "Visual C++" when I was installing Visual Studio.
To add it, see: https://stackoverflow.com/a/31568246/1054322
with zxing this is my code for create QR
QRCodeWriter writer = new QRCodeWriter();
try {
BitMatrix bitMatrix = writer.encode(content, BarcodeFormat.QR_CODE, 512, 512);
int width = bitMatrix.getWidth();
int height = bitMatrix.getHeight();
Bitmap bmp = Bitmap.createBitmap(width, height, Bitmap.Config.RGB_565);
for (int x = 0; x < width; x++) {
for (int y = 0; y < height; y++) {
bmp.setPixel(x, y, bitMatrix.get(x, y) ? Color.BLACK : Color.WHITE);
}
}
((ImageView) findViewById(R.id.img_result_qr)).setImageBitmap(bmp);
} catch (WriterException e) {
e.printStackTrace();
}
are you picky with using Unicode because with java its more simple if you write your program to use "dec" value or (HTML-Code) then you can simply cast data types between char and int
char a = 98;
char b = 'b';
char c = (char) (b+0002);
System.out.println(a);
System.out.println((int)b);
System.out.println((int)c);
System.out.println(c);
Gives this output
b
98
100
d
Some values are serialized differently between simplejson and json.
Notably, instances of collections.namedtuple
are serialized as arrays by json
but as objects by simplejson
. You can override this behaviour by passing namedtuple_as_object=False
to simplejson.dump
, but by default the behaviours do not match.
>>> import collections, simplejson, json
>>> TupleClass = collections.namedtuple("TupleClass", ("a", "b"))
>>> value = TupleClass(1, 2)
>>> json.dumps(value)
'[1, 2]'
>>> simplejson.dumps(value)
'{"a": 1, "b": 2}'
>>> simplejson.dumps(value, namedtuple_as_object=False)
'[1, 2]'
The answer I was looking for that wasn't in this thread is to see changes in files that I'd staged for commit. i.e.
git diff --cached
if (!mytime.before(fromtime) && !mytime.after(totime))
Goto Search->File
You will get an window, you can give either simple search text or regx pattern. Once you enter your search keyword click Search and make sure that Scope is Workspace.
You may use this for Replace as well.
$string = "äácé";
$convert = Array(
'ä'=>'a',
'Ä'=>'A',
'á'=>'a',
'Á'=>'A',
'à'=>'a',
'À'=>'A',
'ã'=>'a',
'Ã'=>'A',
'â'=>'a',
'Â'=>'A',
'c'=>'c',
'C'=>'C',
'c'=>'c',
'C'=>'C',
'd'=>'d',
'D'=>'D',
'e'=>'e',
'E'=>'E',
'é'=>'e',
'É'=>'E',
'ë'=>'e',
);
$string = strtr($string , $convert );
echo $string; //aace
Try:
$(document).ready(function() {
$('#contact-form').validate({submitHandler: function(form) {
var data = $('#contact-form').serialize();
$.post(
'url_request',
{data: data},
function(response){
console.log(response);
}
);
}
});
});
There is nothing in JDK to do this.
static String[] suffixes =
// 0 1 2 3 4 5 6 7 8 9
{ "th", "st", "nd", "rd", "th", "th", "th", "th", "th", "th",
// 10 11 12 13 14 15 16 17 18 19
"th", "th", "th", "th", "th", "th", "th", "th", "th", "th",
// 20 21 22 23 24 25 26 27 28 29
"th", "st", "nd", "rd", "th", "th", "th", "th", "th", "th",
// 30 31
"th", "st" };
Date date = new Date();
SimpleDateFormat formatDayOfMonth = new SimpleDateFormat("d");
int day = Integer.parseInt(formatDateOfMonth.format(date));
String dayStr = day + suffixes[day];
Or using Calendar:
Calendar c = Calendar.getInstance();
c.setTime(date);
int day = c.get(Calendar.DAY_OF_MONTH);
String dayStr = day + suffixes[day];
Per comments by @thorbjørn-ravn-andersen, a table like this can be helpful when localizing:
static String[] suffixes =
{ "0th", "1st", "2nd", "3rd", "4th", "5th", "6th", "7th", "8th", "9th",
"10th", "11th", "12th", "13th", "14th", "15th", "16th", "17th", "18th", "19th",
"20th", "21st", "22nd", "23rd", "24th", "25th", "26th", "27th", "28th", "29th",
"30th", "31st" };
You could let your DataAdapter
do the work. DataAdapter.Fill(DataTable)
will append your new rows to any existing rows in DataTable
.
Packaging of pom
is used in projects that aggregate other projects, and in projects whose only useful output is an attached artifact from some plugin. In your case, I'd guess that your top-level pom includes <modules>...</modules>
to aggregate other directories, and the actual output is the result of one of the other (probably sub-) directories. It will, if coded sensibly for this purpose, have a packaging of war
.
Try this code:
s = input()
a = int(input())
b = s.replace(s[a],'')
print(b)
The oracle limit is 1000 parameters. The issue has been resolved by hibernate in version 4.1.7 although by splitting the passed parameter list in sets of 500 see JIRA HHH-1123
I overwrite my default activity animation. I test it in api 15 that it work smoothly. Here is the solution that I use:
<!-- Base application theme. -->
<style name="AppTheme" parent="Theme.AppCompat.Light.NoActionBar">
<!-- Customize your theme here. -->
<item name="colorPrimary">@color/colorPrimary</item>
<item name="colorPrimaryDark">@color/colorPrimaryDark</item>
<item name="colorAccent">@color/colorPrimary</item>
<item name="android:windowAnimationStyle">@style/CustomActivityAnimation</item>
</style>
<style name="CustomActivityAnimation" parent="@android:style/Animation.Activity">
<item name="android:activityOpenEnterAnimation">@anim/slide_in_right</item>
<item name="android:activityOpenExitAnimation">@anim/slide_out_left</item>
<item name="android:activityCloseEnterAnimation">@anim/slide_in_left</item>
<item name="android:activityCloseExitAnimation">@anim/slide_out_right</item>
</style>
Create anim folder under res folder and then create this four animation files:
slide_in_right.xml
<?xml version="1.0" encoding="utf-8"?>
<set xmlns:android="http://schemas.android.com/apk/res/android">
<translate android:fromXDelta="100%p" android:toXDelta="0"
android:duration="@android:integer/config_mediumAnimTime"/>
</set>
slide_out_left.xml
<?xml version="1.0" encoding="utf-8"?>
<set xmlns:android="http://schemas.android.com/apk/res/android">
<translate android:fromXDelta="0" android:toXDelta="-100%p"
android:duration="@android:integer/config_mediumAnimTime"/>
</set>
slide_in_left.xml
<?xml version="1.0" encoding="utf-8"?>
<set xmlns:android="http://schemas.android.com/apk/res/android">
<translate android:fromXDelta="-100%p" android:toXDelta="0"
android:duration="@android:integer/config_mediumAnimTime"/>
</set>
slide_out_right.xml
<?xml version="1.0" encoding="utf-8"?>
<set xmlns:android="http://schemas.android.com/apk/res/android">
<translate android:fromXDelta="0" android:toXDelta="100%p"
android:duration="@android:integer/config_mediumAnimTime"/>
</set>
You can download my sample project.
That's all... :)
Typically with Angular you would be outputting these spans using the ngRepeat directive and (like in your case) each item would have an id. I know this is not true for all situations but it is typical if requesting data from a backend - objects in an array tend to have unique identifiers.
You can use this id to facilitate the toggling of classes on items in your list (see plunkr or code below).
Using the objects id's can also eliminate the undesirable effect when the $index (described in other answers) is messed up due to sorting in Angular.
Example Plunkr: http://plnkr.co/edit/na0gUec6cdMABK9L6drV
(basically apply the .active-selection class if the person.id is equal to $scope.activeClass - which we set when the user clicks an item.
Hope this helps someone, I've found expressions in ng-class to be very useful!
HTML
<ul>
<li ng-repeat="person in people"
data-ng-class="{'active-selection': person.id == activeClass}">
<a data-ng-click="selectPerson(person.id)">
{{person.name}}
</a>
</li>
</ul>
JS
app.controller('MainCtrl', function($scope) {
$scope.people = [{
id: "1",
name: "John",
}, {
id: "2",
name: "Lucy"
}, {
id: "3",
name: "Mark"
}, {
id: "4",
name: "Sam"
}];
$scope.selectPerson = function(id) {
$scope.activeClass = id;
console.log(id);
};
});
CSS:
.active-selection {
background-color: #eee;
}
For project that does not use maven : This worked for me https://ihategeek.wordpress.com/2012/04/18/eclipse-junit-test-class-not-found/
Adding the jre and project src at the bottom in Order and exports in build path
Use standard Java I/O. Use Environment.getExternalStorageDirectory()
to get to the root of external storage (which, on some devices, is an SD card).
Here are the steps:
It seems you are checking the .project file into the source repository. I would suggest not checking in the .project file so users can have their own version of the file. Also, if you use the subclipse plugin it allows you to check out and configure a source folder as a java project. This process creates the correct .project for you(with the java nature),
The IIS is a multi web site server. The way is distinct the site is by the host header name. So you need to setup that on your web site.
Here is the steps that you need to follow:
How to configure multiple IIS websites to access using host headers?
In general, open your web site properties, locate the Ip Address and near its there is the advanced, "multiple identities for this web site". There you need ether to add all income to this site with a star: "*", ether place the names you like to work with.
This is how I ended up doing it:
private String printPhone(Long phoneNum) {
StringBuilder sb = new StringBuilder(15);
StringBuilder temp = new StringBuilder(phoneNum.toString());
while (temp.length() < 10)
temp.insert(0, "0");
char[] chars = temp.toString().toCharArray();
sb.append("(");
for (int i = 0; i < chars.length; i++) {
if (i == 3)
sb.append(") ");
else if (i == 6)
sb.append("-");
sb.append(chars[i]);
}
return sb.toString();
}
I understand that this does not support international numbers, but I'm not writing a "real" application so I'm not concerned about that. I only accept a 10 character long as a phone number. I just wanted to print it with some formatting.
Thanks for the responses.
Others have suggested IN
, this is fine. You can also use a range:
DELETE from tablename where id<254 and id>3;
If the ids to delete are contiguous.
http://fortawesome.github.io/Font-Awesome/examples/
<i class="icon-thumbs-up icon-3x main-color"></i>
Here I have defined a global style in my CSS where main-color is a class, in my case it is a light blue hue. I find that using inline styles on Icons with Font Awesome works well, esp in the case when you name your colors semantically, i.e. nav-color if you want a separate color for that, etc.
In this example on their website, and how I have written in my example as well, the newest version of Font Awesome has changed the syntax slightly of adjusting the size.Before it used to be:
icon-xxlarge
where now I have to use:
icon-3x
Of course, this all depends on what version of Font Awesome you have installed on your environment. Hope this helps.
Epsilon is the value that the 2 numbers can be off by. So it will assert to true as long as Math.abs(expected - actual) < epsilon
I received A server with the specified hostname could not be found.
. I figured out my MacOS app had turned on App Sandboxing. The easiest way to avoid problem is to turn off Sandbox.
Try winhttpjs.bat. It uses a winhttp request object that should be faster than
Msxml2.XMLHTTP as there isn't any DOM parsing of the response. It is capable to do requests with body and all HTTP methods.
call winhttpjs.bat http://somelink.com/something.html -saveTo c:\something.html
Adding this intent filter to one of the activities declared in app manifest fixed this for me.
<activity
android:name=".MyActivity"
android:screenOrientation="portrait"
android:label="@string/app_name">
<intent-filter>
<action android:name="android.intent.action.VIEW" />
</intent-filter>
</activity>
The Mark Dickinson answer, although complete, didn't work with the float(52.15) case. After some tests, there is the solution that I'm using:
import decimal
def value_to_decimal(value, decimal_places):
decimal.getcontext().rounding = decimal.ROUND_HALF_UP # define rounding method
return decimal.Decimal(str(float(value))).quantize(decimal.Decimal('1e-{}'.format(decimal_places)))
(The conversion of the 'value' to float and then string is very important, that way, 'value' can be of the type float, decimal, integer or string!)
Hope this helps anyone.
Here is a "simple as possible" example, for changing the order of div-elements (when resizing the browser window):
<!DOCTYPE html>
<html>
<head>
<title>foobar</title>
<style>
@media screen and (max-width:300px){
#parent{
display:flex;
flex-flow: column;
}
#a{order:2;}
#c{order:1;}
#b{order:3;}
}
</style>
</head>
<body>
<div id="parent">
<div id="a">one</div>
<div id="b">two</div>
<div id="c">three</div>
</div>
</body>
</html>
Example: http://jsfiddle.net/devnull/qyroxexv/ (change window-width to see the effect of changing the order of the divs)
Try it like,
<?php
$name='your name';
echo '<table>
<tr><th>Name</th></tr>
<tr><td>'.$name.'</td></tr>
</table>';
?>
Updated
<?php
echo '<table>
<tr><th>Rst</th><th>Marks</th></tr>
<tr><td>'.$rst4.'</td><td>'.$marks4.'</td></tr>
</table>';
?>
If you`re not using jQuery then please make sure:
var json_upload = "json_name=" + JSON.stringify({name:"John Rambo", time:"2pm"});
var xmlhttp = new XMLHttpRequest(); // new HttpRequest instance
xmlhttp.open("POST", "/file.php");
xmlhttp.setRequestHeader("Content-Type", "application/x-www-form-urlencoded");
xmlhttp.send(json_upload);
And for the php receiving end:
$_POST['json_name']
To display the all details for each news post title ie. "news.id" which is the primary key, you need to use GROUP BY clause for "news.id"
SELECT news.id, users.username, news.title, news.date,
news.body, COUNT(comments.id)
FROM news
LEFT JOIN users
ON news.user_id = users.id
LEFT JOIN comments
ON comments.news_id = news.id
GROUP BY news.id
Since RxJava is a hammer and this kinda looks like a nail, you can do
Observable.from(iterable).toList().toBlocking().single();
Generally you can do
select * from your_table
order by case when name = 'core' then 1 else 2 end,
priority
Especially in MySQL you can also do
select * from your_table
order by name <> 'core',
priority
Since the result of a comparision in MySQL is either 0
or 1
and you can sort by that result.
To avoid this warning, do not use:
async: false
in any of your $.ajax()
calls. This is the only feature of XMLHttpRequest
that's deprecated.
The default is async: true
, so if you never use this option at all, your code should be safe if the feature is ever really removed.
However, it probably won't be -- it may be removed from the standards, but I'll bet browsers will continue to support it for many years. So if you really need synchronous AJAX for some reason, you can use async: false
and just ignore the warnings. But there are good reasons why synchronous AJAX is considered poor style, so you should probably try to find a way to avoid it. And the people who wrote Flash applications probably never thought it would go away, either, but it's in the process of being phased out now.
Notice that the Fetch
API that's replacing XMLHttpRequest
does not even offer a synchronous option.
In a function call the single star turns a list into seperate arguments (e.g. zip(*x)
is the same as zip(x1,x2,x3)
if x=[x1,x2,x3]
) and the double star turns a dictionary into seperate keyword arguments (e.g. f(**k)
is the same as f(x=my_x, y=my_y)
if k = {'x':my_x, 'y':my_y}
.
In a function definition it's the other way around: the single star turns an arbitrary number of arguments into a list, and the double start turns an arbitrary number of keyword arguments into a dictionary. E.g. def foo(*x)
means "foo takes an arbitrary number of arguments and they will be accessible through the list x (i.e. if the user calls foo(1,2,3)
, x
will be [1,2,3]
)" and def bar(**k)
means "bar takes an arbitrary number of keyword arguments and they will be accessible through the dictionary k (i.e. if the user calls bar(x=42, y=23)
, k
will be {'x': 42, 'y': 23}
)".
Possible alternative from the source code of Integer.compare
method which requires API Version 19
is :
public int compareTo(Animal other) {
return Integer.valueOf(this.year_discovered).compareTo(other.year_discovered);
}
This alternative does not require you to use API version 19
.
Go with Martin's suggestion to the question: Get iPhone Status Bar Height.
CGFloat AACStatusBarHeight()
{
CGSize statusBarSize = [[UIApplication sharedApplication] statusBarFrame].size;
return MIN(statusBarSize.width, statusBarSize.height);
}
And in Swift
func statusBarHeight() -> CGFloat {
let statusBarSize = UIApplication.shared.statusBarFrame.size
return Swift.min(statusBarSize.width, statusBarSize.height)
}
It seems like a hack, but it's actually pretty solid. Anyway, it's the only working solution.
The following code, which would go in your custom subclass of UIViewController
, almost worked to support landscape. But, I noticed a corner case (when rotating from right > unsupported upside-down > left) for which it didn't work (switched height & width).
BOOL isPortrait = self.interfaceOrientation == UIInterfaceOrientationPortrait;
CGSize statusBarSize = [UIApplication sharedApplication].statusBarFrame.size;
CGFloat statusBarHeight = (isPortrait ? statusBarSize.height : statusBarSize.width);
You can use dtype=np.int64
instead of dtype=int
From this post:
To get the entire PC CPU and Memory usage:
using System.Diagnostics;
Then declare globally:
private PerformanceCounter theCPUCounter =
new PerformanceCounter("Processor", "% Processor Time", "_Total");
Then to get the CPU time, simply call the NextValue()
method:
this.theCPUCounter.NextValue();
This will get you the CPU usage
As for memory usage, same thing applies I believe:
private PerformanceCounter theMemCounter =
new PerformanceCounter("Memory", "Available MBytes");
Then to get the memory usage, simply call the NextValue()
method:
this.theMemCounter.NextValue();
For a specific process CPU and Memory usage:
private PerformanceCounter theCPUCounter =
new PerformanceCounter("Process", "% Processor Time",
Process.GetCurrentProcess().ProcessName);
where Process.GetCurrentProcess().ProcessName
is the process name you wish to get the information about.
private PerformanceCounter theMemCounter =
new PerformanceCounter("Process", "Working Set",
Process.GetCurrentProcess().ProcessName);
where Process.GetCurrentProcess().ProcessName
is the process name you wish to get the information about.
Note that Working Set may not be sufficient in its own right to determine the process' memory footprint -- see What is private bytes, virtual bytes, working set?
To retrieve all Categories, see Walkthrough: Retrieving Categories and Counters
The difference between Processor\% Processor Time
and Process\% Processor Time
is Processor
is from the PC itself and Process
is per individual process. So the processor time of the processor would be usage on the PC. Processor time of a process would be the specified processes usage. For full description of category names: Performance Monitor Counters
An alternative to using the Performance Counter
Use System.Diagnostics.Process.TotalProcessorTime and System.Diagnostics.ProcessThread.TotalProcessorTime properties to calculate your processor usage as this article describes.
This is the question I faced in my interview.
Why is main method in Java called as public static void main(String[] args) ?
Answer:
1.main() must be declared public because it is invoked by JVM whenever the program execution starts.JVM doesnot belong to our program package.
Inorder to access main outside the package we have to declare it as public.If we declare it as anything other than public it shows a Runtime Error but not Compilation time error
2.main() must be declared as static because if a method is declared as static then we can call that method outside the class using ClassName.methodName();
class Sample
{
static void fun()
{
System.out.println("Hello");
}
}
class Test
{
public static void main(String[] args)
{
Sample.fun();
}
}
The JVM will first Load the Test class,and will check for the Commandline arguments and calls the main method as Test.main();
3.main() must be declared as void main() because JVM is not expecting any value from main().So,it must be declared as void.
If other return type is provided,the it is a RunTimeError i.e;NoSuchMethodFoundError.
4.main() must have String arguements as arrays because JVM calls main method by passing command line arguement.As they are stored in string array object it is passed as an argument to main().
ROUND(number, decimals, operation)
number => Required. The number to be rounded
decimals => Required. The number of decimal places to round number to
operation => Optional. If 0, it rounds the result to the number of decimal. If another value than 0, it truncates the result to the number of decimals. Default value is 0
SELECT ROUND(235.415, 2, 1)
will give you 235.410
SELECT ROUND(235.415, 0, 1)
will give you 235.000
But now trimming0
you can use cast
SELECT CAST(ROUND(235.415, 0, 1) AS INT)
will give you 235
which means that cacerts keystore isn't password protected
That's a false assumption. If you read more carefully, you'll find that the listing was provided without verifying the integrity of the keystore because you didn't provide the password. The listing doesn't require a password, but your keystore definitely has a password, as indicated by:
In order to verify its integrity, you must provide your keystore password.
Java's default cacerts password is "changeit", unless you're on a Mac, where it's "changeme" up to a certain point. Apparently as of Mountain Lion (based on comments and another answer here), the password for Mac is now also "changeit", probably because Oracle is now handling distribution for the Mac JVM as well.
I solved a situation where I needed a template for the element that would handle alternatively a regular URL or a javascript call, where the js function needs a reference to the calling element. In javascript, "this" works as a self reference only in the context of a form element, e.g., a button. I didn't want a button, just the apperance of a regular link.
Examples:
<a onclick="http://blahblah" href="http://blahblah" target="_blank">A regular link</a>
<a onclick="javascript:myFunc($(this));return false" href="javascript:myFunc($(this));" target="_blank">javascript with self reference</a>
The href and onClick attributes have the same values, exept I append "return false" on onClick when it's a javascript call. Having "return false" in the called function did not work.
I think it's a little simpler to use the dplyr
functions select
and left_join
; at least it's easier for me to understand. The join function from dplyr
are made to mimic sql arguments.
library(tidyverse)
DF2 <- DF2 %>%
select(client, LO)
joined_data <- left_join(DF1, DF2, by = "Client")
You don't actually need to use the "by" argument in this case because the columns have the same name.
these two codes worked for me like a charm this first will take to scroll to the top of the page but if you want to scroll to some specific div use the second one with your div id.
$('body, html, #containerDiv').scrollTop(0);
document.getElementById('yourDivID').scrollIntoView();
If you want to scroll to by a class name use the below code
var $container = $("html,body");
var $scrollTo = $('.main-content');
$container.animate({scrollTop: $scrollTo.offset().top - $container.offset().top + $container.scrollTop(), scrollLeft: 0},300);
Most framework like React Native and Ionic allows you to built on their server. Meaning that they can help you compile and provide you with and .ipa file.
The problem is you need Xcode or Application loader to submit your app to Apple App Store Connect. Both of these are only available on OSX. To overcome this solution you have 2 options that I am aware of
In telegram desktop, use this hotkey:
ctrl+K
In android:
Create Link
from its optionsNone of the existing answers here has provided a complete example of how to do this from within a script (not a one-liner). Here is what I did:
rename($file, $file.'.bak');
open(IN, '<'.$file.'.bak') or die $!;
open(OUT, '>'.$file) or die $!;
while(<IN>)
{
$_ =~ s/blue/red/g;
print OUT $_;
}
close(IN);
close(OUT);
This has been asked so many times so that a user with over 1000 points ask for this is some strange
But just to show just another way to do it:
echo "/some/random/file.csv:some string" | awk '{sub(/:.*/,x)}1'
/some/random/file.csv
This works using a simple ajax call and iterating image paths.
var name = "nasa";
$.get("https://www.instagram.com/" + name + "/?__a=1", function (data, status) {
console.log('IG_NODES', data.user.media.nodes);
$.each(data.user.media.nodes, function (n, item) {
console.log('ITEMS', item.display_src);
$('body').append(
"<div class='col-md-4'><img class='img-fluid d-block' src='" + item.display_src + "'></div>"
);
});
})
rm
in within
can be quite useful.
within(mtcars, rm(mpg, cyl, disp, hp))
# drat wt qsec vs am gear carb
# Mazda RX4 3.90 2.620 16.46 0 1 4 4
# Mazda RX4 Wag 3.90 2.875 17.02 0 1 4 4
# Datsun 710 3.85 2.320 18.61 1 1 4 1
# Hornet 4 Drive 3.08 3.215 19.44 1 0 3 1
# Hornet Sportabout 3.15 3.440 17.02 0 0 3 2
# Valiant 2.76 3.460 20.22 1 0 3 1
# ...
May be combined with other operations.
within(mtcars, {
mpg2=mpg^2
cyl2=cyl^2
rm(mpg, cyl, disp, hp)
})
# drat wt qsec vs am gear carb cyl2 mpg2
# Mazda RX4 3.90 2.620 16.46 0 1 4 4 36 441.00
# Mazda RX4 Wag 3.90 2.875 17.02 0 1 4 4 36 441.00
# Datsun 710 3.85 2.320 18.61 1 1 4 1 16 519.84
# Hornet 4 Drive 3.08 3.215 19.44 1 0 3 1 36 457.96
# Hornet Sportabout 3.15 3.440 17.02 0 0 3 2 64 349.69
# Valiant 2.76 3.460 20.22 1 0 3 1 36 327.61
# ...
Here is the simple solution by StreamEx:
StreamEx.of(list).groupingBy(Function.identity(), MoreCollectors.countingInt());
This has the advantage of reducing the Java stream boilerplate code: collect(Collectors.
First, you should probably use SYSDATETIME()
if you're looking for more precision.
To format your data with milliseconds, try CONVERT(varchar, SYSDATETIME(), 121)
.
For other formats, check out the MSDN page on CAST
and CONVERT
.
Install Qt
sudo apt-get install build-essential
sudo apt-get install qtcreator
sudo apt-get install qt5-default
Install documentation and examples If Qt Creator is installed thanks to the Ubuntu Sofware Center or thanks to the synaptic package manager, documentation for Qt Creator is not installed. Hitting the F1 key will show you the following message : "No documentation available". This can easily be solved by installing the Qt documentation:
sudo apt-get install qt5-doc
sudo apt-get install qt5-doc-html qtbase5-doc-html
sudo apt-get install qtbase5-examples
Restart Qt Creator to make the documentation available.
Error while loading shared libraries
Problem:
radiusd: error while loading shared libraries: libfreeradius-radius-2.1.10.so: cannot open shared object file: No such file or directory
Reason:
Actually, the libraries have been installed in a place where dynamic linker cannot find it.
Solution:
While this is not a guarantee but using the following command may help you solve the “cannot open shared object file” error:
sudo /sbin/ldconfig -v
http://www.lucidarme.me/how-install-documentation-for-qt-creator/
https://ubuntuforums.org/showthread.php?t=2199929
Besides the session cookie (which is kind of standard), I don't want to use extra cookies.
I found a solution which works for me when building a Single Page Web Application (SPA), with many AJAX requests. Note: I am using server side Java and client side JQuery, but no magic things so I think this principle can be implemented in all popular programming languages.
My solution without extra cookies is simple:
Store the CSRF token which is returned by the server after a succesful login in a global variable (if you want to use web storage instead of a global thats fine of course). Instruct JQuery to supply a X-CSRF-TOKEN header in each AJAX call.
The main "index" page contains this JavaScript snippet:
// Intialize global variable CSRF_TOKEN to empty sting.
// This variable is set after a succesful login
window.CSRF_TOKEN = '';
// the supplied callback to .ajaxSend() is called before an Ajax request is sent
$( document ).ajaxSend( function( event, jqXHR ) {
jqXHR.setRequestHeader('X-CSRF-TOKEN', window.CSRF_TOKEN);
});
On successul login, create a random (and long enough) CSRF token, store this in the server side session and return it to the client. Filter certain (sensitive) incoming requests by comparing the X-CSRF-TOKEN header value to the value stored in the session: these should match.
Sensitive AJAX calls (POST form-data and GET JSON-data), and the server side filter catching them, are under a /dataservice/* path. Login requests must not hit the filter, so these are on another path. Requests for HTML, CSS, JS and image resources are also not on the /dataservice/* path, thus not filtered. These contain nothing secret and can do no harm, so this is fine.
@WebFilter(urlPatterns = {"/dataservice/*"})
...
String sessionCSRFToken = req.getSession().getAttribute("CSRFToken") != null ? (String) req.getSession().getAttribute("CSRFToken") : null;
if (sessionCSRFToken == null || req.getHeader("X-CSRF-TOKEN") == null || !req.getHeader("X-CSRF-TOKEN").equals(sessionCSRFToken)) {
resp.sendError(401);
} else
chain.doFilter(request, response);
}
Something else to consider when this type of error is encountered:
I was running into this error message and found this post helpful. Turns out in my case I had overridden an __init__()
where there was object inheritance.
The inherited example is rather long, so I'll skip to a more simple example that doesn't use inheritance:
class MyBadInitClass:
def ___init__(self, name):
self.name = name
def name_foo(self, arg):
print(self)
print(arg)
print("My name is", self.name)
class MyNewClass:
def new_foo(self, arg):
print(self)
print(arg)
my_new_object = MyNewClass()
my_new_object.new_foo("NewFoo")
my_bad_init_object = MyBadInitClass(name="Test Name")
my_bad_init_object.name_foo("name foo")
Result is:
<__main__.MyNewClass object at 0x033C48D0>
NewFoo
Traceback (most recent call last):
File "C:/Users/Orange/PycharmProjects/Chapter9/bad_init_example.py", line 41, in <module>
my_bad_init_object = MyBadInitClass(name="Test Name")
TypeError: object() takes no parameters
PyCharm didn't catch this typo. Nor did Notepad++ (other editors/IDE's might).
Granted, this is a "takes no parameters" TypeError, it isn't much different than "got two" when expecting one, in terms of object initialization in Python.
Addressing the topic: An overloading initializer will be used if syntactically correct, but if not it will be ignored and the built-in used instead. The object won't expect/handle this and the error is thrown.
In the case of the sytax error: The fix is simple, just edit the custom init statement:
def __init__(self, name):
self.name = name
This is an old question, but one that is frequently visited and clear recommendations are now available from RFC 7303 which obsoletes RFC3023. In a nutshell (section 9.2):
The registration information for text/xml is in all respects the same
as that given for application/xml above (Section 9.1), except that
the "Type name" is "text".
Duplicate your table into a table to be archived:
SELECT * INTO ArchiveTable FROM MyTable
Delete all entries in your table:
DELETE * FROM MyTable
this code works with me
ImageView carView = (ImageView) v.findViewById(R.id.car_icon);
byte[] decodedString = Base64.decode(picture, Base64.NO_WRAP);
InputStream input=new ByteArrayInputStream(decodedString);
Bitmap ext_pic = BitmapFactory.decodeStream(input);
carView.setImageBitmap(ext_pic);
According to the documentation:
Thrown to indicate that the code has attempted to cast an Object
to a subclass
of which it is not an instance. For example, the following code generates a ClassCastException
:
Object x = new Integer(0);
System.out.println((String)x);
squares = squarer(x)
Arithmetic operations on arrays are automatically applied elementwise, with efficient C-level loops that avoid all the interpreter overhead that would apply to a Python-level loop or comprehension.
Most of the functions you'd want to apply to a NumPy array elementwise will just work, though some may need changes. For example, if
doesn't work elementwise. You'd want to convert those to use constructs like numpy.where
:
def using_if(x):
if x < 5:
return x
else:
return x**2
becomes
def using_where(x):
return numpy.where(x < 5, x, x**2)
Tensorflow in Now supporting Python 3.6.0 .....I have successfully installed the Tensorflow for Python 3.6.0
Using this Simple Instruction // pip install -- tensorflow
[enter image description here][1]
[1]: https://i.stack.imgur.com/1Y3kf.png
Installing collected packages: protobuf, html5lib, bleach, markdown, tensorflow-tensorboard, tensorflow
Successfully installed bleach-1.5.0 html5lib-0.9999999 markdown-2.6.9 protobuf-3.4.0 tensorflow-1.3.0 tensorflow-tensorboard-0.1.5
You can use $.browser to detect the browser name. possible values are :
or get a boolean flag: $.browser.msie will be true if the browser is MSIE.
as for the version number, if you are only interested in the major release number - you can use parseInt($.browser.version, 10). no need to parse the $.browser.version string yourself.
Anyway, The $.support property is available for detection of support for particular features rather than relying on $.browser.
Use list
on a number converted to string:
In [1]: [int(x) for x in list(str(123))]
Out[2]: [1, 2, 3]
Since JSF 2.3 all the bean scopes defined in package javax.faces.bean
package have been deprecated to align the scopes with CDI. Moreover they're only applicable if your bean is using @ManagedBean
annotation. If you are using JSF versions below 2.3 refer to the legacy answer at the end.
From JSF 2.3 here are scopes that can be used on JSF Backing Beans:
1. @javax.enterprise.context.ApplicationScoped
: The application scope persists for the entire duration of the web application. That scope is shared among all requests and all sessions. This is useful when you have data for whole application.
2. @javax.enterprise.context.SessionScoped
: The session scope persists from the time that a session is established until session termination. The session context is shared between all requests that occur in the same HTTP session. This is useful when you wont to save data for a specific client for a particular session.
3. @javax.enterprise.context.ConversationScoped
: The conversation scope persists as log as the bean lives. The scope provides 2 methods: Conversation.begin()
and Conversation.end()
. These methods should called explicitly, either to start or end the life of a bean.
4. @javax.enterprise.context.RequestScoped
: The request scope is short-lived. It starts when an HTTP request is submitted and ends after the response is sent back to the client. If you place a managed bean into request scope, a new instance is created with each request. It is worth considering request scope if you are concerned about the cost of session scope storage.
5. @javax.faces.flow.FlowScoped
: The Flow scope persists as long as the Flow lives. A flow may be defined as a contained set of pages (or views) that define a unit of work. Flow scoped been is active as long as user navigates with in the Flow.
6. @javax.faces.view.ViewScoped
: A bean in view scope persists while the same JSF page is redisplayed. As soon as the user navigates to a different page, the bean goes out of scope.
The following legacy answer applies JSF version before 2.3
As of JSF 2.x there are 4 Bean Scopes:
- @SessionScoped
- @RequestScoped
- @ApplicationScoped
- @ViewScoped
Session Scope: The session scope persists from the time that a session is established until session termination. A session terminates if the web application invokes the invalidate method on the HttpSession object, or if it times out.
RequestScope: The request scope is short-lived. It starts when an HTTP request is submitted and ends after the response is sent back to the client. If you place a managed bean into request scope, a new instance is created with each request. It is worth considering request scope if you are concerned about the cost of session scope storage.
ApplicationScope: The application scope persists for the entire duration of the web application. That scope is shared among all requests and all sessions. You place managed beans into the application scope if a single bean should be shared among all instances of a web application. The bean is constructed when it is first requested by any user of the application, and it stays alive until the web application is removed from the application server.
ViewScope: View scope was added in JSF 2.0. A bean in view scope persists while the same JSF page is redisplayed. (The JSF specification uses the term view for a JSF page.) As soon as the user navigates to a different page, the bean goes out of scope.
Choose the scope you based on your requirement.
Source: Core Java Server Faces 3rd Edition by David Geary & Cay Horstmann [Page no. 51 - 54]
.setGame
is discontinued. Use:
client.user.setActivity("Game");
To set a playing game status.
As an addition, if you were using an earlier version of discord.js, try this:
client.user.setGame("Game");
In newer versions of discord.js, this is deprecated.
Try to using application/* instead. And use JSON.maybeJson() to check the data structure in the controller.
You are trying to index into a scalar (non-iterable) value:
[y[1] for y in y_test]
# ^ this is the problem
When you call [y for y in test]
you are iterating over the values already, so you get a single value in y
.
Your code is the same as trying to do the following:
y_test = [1, 2, 3]
y = y_test[0] # y = 1
print(y[0]) # this line will fail
I'm not sure what you're trying to get into your results array, but you need to get rid of [y[1] for y in y_test]
.
If you want to append each y in y_test to results, you'll need to expand your list comprehension out further to something like this:
[results.append(..., y) for y in y_test]
Or just use a for loop:
for y in y_test:
results.append(..., y)
Warning: Use the below steps at your own risk. You may receive different results as indicated in the comments. Please exercise caution and have a full backup prior to doing this.
Below is a list of steps used to solve the issue:
Remove Docker (this won't delete images, containers, volumes, or customized configuration files):
sudo apt-get purge docker-engine
Remove the Docker apt key:
sudo apt-key del 58118E89F3A912897C070ADBF76221572C52609D
Delete the docker.list file:
sudo rm /etc/apt/sources.list.d/docker.list
Manually delete apt cache files:
sudo rm /var/lib/apt/lists/apt.dockerproject.org_repo_dists_ubuntu-xenial_*
Delete apt-transport-https and ca-certificates:
sudo apt-get purge apt-transport-https ca-certificates
Clean apt and perform autoremove:
sudo apt-get clean && sudo apt-get autoremove
Reboot Ubuntu:
sudo reboot
Run apt-get update:
sudo apt-get update
Install apt-transport-https and ca-certificates again:
sudo apt-get install apt-transport-https ca-certificates
Add the apt key:
> sudo apt-key adv \
--keyserver hkp://ha.pool.sks-keyservers.net:80 \
--recv-keys 58118E89F3A912897C070ADBF76221572C52609D
> echo "deb https://apt.dockerproject.org/repo ubuntu-xenial main" |
sudo tee /etc/apt/sources.list.d/docker.list
> sudo apt-get update
> sudo apt-get install docker-engine
Granted, there are plenty of variables and your results may vary. However, these steps cover as many areas as possible to ensure potential problem spots are scrubbed so that the likelihood of success is higher.
Update 7/6/2017
It appears newer versions of Docker are using a different installation process which should eliminate many of these problems. Be sure to check out https://docs.docker.com/engine/installation/linux/ubuntu/.
s = re.sub(r"[-()\"#/@;:<>{}`+=~|.!?,]", "", s)
Perhaps the sched module will meet your needs.
Alternatively, consider using a Timer object.
Check out this fiddle:
http://jsfiddle.net/G6N5T/1574/
.wrap {_x000D_
width: 100%;_x000D_
overflow:auto;_x000D_
}_x000D_
_x000D_
.fleft {_x000D_
float:left; _x000D_
width: 33%;_x000D_
background:lightblue;_x000D_
height: 400px;_x000D_
}_x000D_
_x000D_
.fcenter{_x000D_
float:left;_x000D_
width: 33%;_x000D_
background:lightgreen;_x000D_
height:400px;_x000D_
margin-left:0.25%;_x000D_
}_x000D_
_x000D_
.fright {_x000D_
float: right;_x000D_
background:pink;_x000D_
height: 400px;_x000D_
width: 33.5%;_x000D_
_x000D_
}
_x000D_
<div class="wrap">_x000D_
<!--Updated on 10/8/2016; fixed center alignment percentage-->_x000D_
<div class="fleft">Left</div>_x000D_
<div class="fcenter">Center</div>_x000D_
<div class="fright">Right</div>_x000D_
</div>
_x000D_
This uses the CSS float
property for left, right, and center alignments of div
s on a page.
See the NSString Class Reference.
NSString *string = @"5";
int value = [string intValue];
Java has unfortunately no equivalent of async/await. The closest you can get is probably with ListenableFuture from Guava and listener chaining, but it would be still very cumbersome to write for cases involving multiple asynchronous calls, as the nesting level would very quickly grow.
If you're ok with using a different language on top of JVM, fortunately there is async/await in Scala which is a direct C# async/await equivalent with an almost identical syntax and semantics: https://github.com/scala/async/
Note that although this functionality needed a pretty advanced compiler support in C#, in Scala it could be added as a library thanks to a very powerful macro system in Scala and therefore can be added even to older versions of Scala like 2.10. Additionally Scala is class-compatible with Java, so you can write the async code in Scala and then call it from Java.
There is also another similar project called Akka Dataflow http://doc.akka.io/docs/akka/2.3-M1/scala/dataflow.html which uses different wording but conceptually is very similar, however implemented using delimited continuations, not macros (so it works with even older Scala versions like 2.9).
I found this very annoying bug while converting EmployeeID values with ISNUMERIC:
SELECT DISTINCT [EmployeeID],
ISNUMERIC(ISNULL([EmployeeID], '')) AS [IsNumericResult],
CASE WHEN COALESCE(NULLIF(tmpImport.[EmployeeID], ''), 'Z')
LIKE '%[^0-9]%' THEN 'NonNumeric' ELSE 'Numeric'
END AS [IsDigitsResult]
FROM [MyTable]
This returns:
EmployeeID IsNumericResult MyCustomResult ---------- --------------- -------------- 0 NonNumeric 00000000c 0 NonNumeric 00D026858 1 NonNumeric (3 row(s) affected)
Hope this helps!
try them if it help.
$('.div_parent .div_child').empty();
$('#div_parent #div_child').empty();
winrm set winrm/config/client '@{TrustedHosts="machineA,machineB"}'
Per Mozilla's Map documentation, you can initialize as follows:
private _gridOptions:Map<string, Array<string>> =
new Map([
["1", ["test"]],
["2", ["test2"]]
]);
Best way to instantiate the fragment is use default Fragment.instantiate method or create factory method to instantiate the the fragment
Caution: always create one empty constructor in fragment other while restoring fragment memory will throw run-time exception.
Stick with the present tense imperative because
If you are only looking to point to a different location for you identity file, the you can modify your ~/.ssh/config file with the following entry:
IdentityFile ~/.foo/identity
man ssh_config
to find other config options.
Besides {{ 1 * num_str + 1}} You can also try like this(minus first):
{{ num_str - 0 + 1}}
But the it's very fragile, if num_str contains letters, then it will fail. So better should try writing a filter as @hassassin said, or preprocess the data right after initiating it.
you could also try creating a button, this will work if you put it outside of the form;
<button onClick="moreFields(); return false;">Give me more fields!</button>
CharsetDecoder
should be what you are looking for, no ?
Many network protocols and files store their characters with a byte-oriented character set such as ISO-8859-1
(ISO-Latin-1
).
However, Java's native character encoding is Unicode UTF16BE (Sixteen-bit UCS Transformation Format, big-endian byte order).
See Charset
. That doesn't mean UTF16
is the default charset (i.e.: the default "mapping between sequences of sixteen-bit Unicode code units and sequences of bytes"):
Every instance of the Java virtual machine has a default charset, which may or may not be one of the standard charsets.
[US-ASCII
,ISO-8859-1
a.k.a.ISO-LATIN-1
,UTF-8
,UTF-16BE
,UTF-16LE
,UTF-16
]
The default charset is determined during virtual-machine startup and typically depends upon the locale and charset being used by the underlying operating system.
This example demonstrates how to convert ISO-8859-1
encoded bytes in a ByteBuffer
to a string in a CharBuffer
and visa versa.
// Create the encoder and decoder for ISO-8859-1
Charset charset = Charset.forName("ISO-8859-1");
CharsetDecoder decoder = charset.newDecoder();
CharsetEncoder encoder = charset.newEncoder();
try {
// Convert a string to ISO-LATIN-1 bytes in a ByteBuffer
// The new ByteBuffer is ready to be read.
ByteBuffer bbuf = encoder.encode(CharBuffer.wrap("a string"));
// Convert ISO-LATIN-1 bytes in a ByteBuffer to a character ByteBuffer and then to a string.
// The new ByteBuffer is ready to be read.
CharBuffer cbuf = decoder.decode(bbuf);
String s = cbuf.toString();
} catch (CharacterCodingException e) {
}
This is probably not the main reason why the create_all()
method call doesn't work for people, but for me, the cobbled together instructions from various tutorials have it such that I was creating my db in a request context, meaning I have something like:
# lib/db.py
from flask import g, current_app
from flask_sqlalchemy import SQLAlchemy
def get_db():
if 'db' not in g:
g.db = SQLAlchemy(current_app)
return g.db
I also have a separate cli command that also does the create_all:
# tasks/db.py
from lib.db import get_db
@current_app.cli.command('init-db')
def init_db():
db = get_db()
db.create_all()
I also am using a application factory.
When the cli command is run, a new app context is used, which means a new db is used. Furthermore, in this world, an import model in the init_db method does not do anything, because it may be that your model file was already loaded(and associated with a separate db).
The fix that I came around to was to make sure that the db was a single global reference:
# lib/db.py
from flask import g, current_app
from flask_sqlalchemy import SQLAlchemy
db = None
def get_db():
global db
if not db:
db = SQLAlchemy(current_app)
return db
I have not dug deep enough into flask, sqlalchemy, or flask-sqlalchemy to understand if this means that requests to the db from multiple threads are safe, but if you're reading this you're likely stuck in the baby stages of understanding these concepts too.
Return false
to prevent the keystroke from continuing.
As Dan Abramov said, if you want more advanced control over your async code, you might take a look at redux-saga.
This answer is a simple example, if you want better explanations on why redux-saga can be useful for your application, check this other answer.
The general idea is that Redux-saga offers an ES6 generators interpreter that permits you to easily write async code that looks like synchronous code (this is why you'll often find infinite while loops in Redux-saga). Somehow, Redux-saga is building its own language directly inside Javascript. Redux-saga can feel a bit difficult to learn at first, because you need basic understanding of generators, but also understand the language offered by Redux-saga.
I'll try here to describe here the notification system I built on top of redux-saga. This example currently runs in production.
Screenshot of my production app Stample.co
Here I named the notification a toast
but this is a naming detail.
function* toastSaga() {
// Some config constants
const MaxToasts = 3;
const ToastDisplayTime = 4000;
// Local generator state: you can put this state in Redux store
// if it's really important to you, in my case it's not really
let pendingToasts = []; // A queue of toasts waiting to be displayed
let activeToasts = []; // Toasts currently displayed
// Trigger the display of a toast for 4 seconds
function* displayToast(toast) {
if ( activeToasts.length >= MaxToasts ) {
throw new Error("can't display more than " + MaxToasts + " at the same time");
}
activeToasts = [...activeToasts,toast]; // Add to active toasts
yield put(events.toastDisplayed(toast)); // Display the toast (put means dispatch)
yield call(delay,ToastDisplayTime); // Wait 4 seconds
yield put(events.toastHidden(toast)); // Hide the toast
activeToasts = _.without(activeToasts,toast); // Remove from active toasts
}
// Everytime we receive a toast display request, we put that request in the queue
function* toastRequestsWatcher() {
while ( true ) {
// Take means the saga will block until TOAST_DISPLAY_REQUESTED action is dispatched
const event = yield take(Names.TOAST_DISPLAY_REQUESTED);
const newToast = event.data.toastData;
pendingToasts = [...pendingToasts,newToast];
}
}
// We try to read the queued toasts periodically and display a toast if it's a good time to do so...
function* toastScheduler() {
while ( true ) {
const canDisplayToast = activeToasts.length < MaxToasts && pendingToasts.length > 0;
if ( canDisplayToast ) {
// We display the first pending toast of the queue
const [firstToast,...remainingToasts] = pendingToasts;
pendingToasts = remainingToasts;
// Fork means we are creating a subprocess that will handle the display of a single toast
yield fork(displayToast,firstToast);
// Add little delay so that 2 concurrent toast requests aren't display at the same time
yield call(delay,300);
}
else {
yield call(delay,50);
}
}
}
// This toast saga is a composition of 2 smaller "sub-sagas" (we could also have used fork/spawn effects here, the difference is quite subtile: it depends if you want toastSaga to block)
yield [
call(toastRequestsWatcher),
call(toastScheduler)
]
}
And the reducer:
const reducer = (state = [],event) => {
switch (event.name) {
case Names.TOAST_DISPLAYED:
return [...state,event.data.toastData];
case Names.TOAST_HIDDEN:
return _.without(state,event.data.toastData);
default:
return state;
}
};
You can simply dispatch TOAST_DISPLAY_REQUESTED
events. If you dispatch 4 requests, only 3 notifications will be displayed, and the 4th one will appear a bit later once the 1st notification disappears.
Note that I don't specifically recommend dispatching TOAST_DISPLAY_REQUESTED
from JSX. You'd rather add another saga that listens to your already-existing app events, and then dispatch the TOAST_DISPLAY_REQUESTED
: your component that triggers the notification, does not have to be tightly coupled to the notification system.
My code is not perfect but runs in production with 0 bugs for months. Redux-saga and generators are a bit hard initially but once you understand them this kind of system is pretty easy to build.
It's even quite easy to implement more complex rules, like:
Honnestly, good luck implementing this kind of stuff properly with thunks.
Note you can do exactly the same kind of thing with redux-observable which is very similar to redux-saga. It's almost the same and is a matter of taste between generators and RxJS.
"abcdefgh..".IndexOf("d")
returns 3
In general returns first occurrence index, if not present returns -1
$solution = $query->distinct()
->groupBy
(
[
'array',
'of',
'columns',
]
)
->addSelect(
[
'columns',
'from',
'the',
'groupby',
]
)
->get();
Remember the group by is optional,this should work in most cases when you want a count group by to exclude duplicated select values, the addSelect is a querybuilder instance method.
There is in fact a way to do this using Visual block mode. Simply pressing $A
in Visual block mode appends to the end of all lines in the selection. The appended text will appear on all lines as soon as you press Esc.
So this is a possible solution:
vip<C-V>$A,<Esc>
That is, in Normal mode, Visual select a paragraph vip
, switch to Visual block mode CTRLV, append to all lines $A
a comma ,
, then press Esc to confirm.
The documentation is at :h v_b_A
. There is even an illustration of how it works in the examples section: :h v_b_A_example
.
As far as I know, the order of the repositories in your pom.xml will also decide the order of the repository access.
As for configuring repositories in settings.xml, I've read that the order of repositories is interestingly enough the inverse order of how the repositories will be accessed.
Here a post where someone explains this curiosity:
http://community.jboss.org/message/576851
Using the scatter
method of the matplotlib.pyplot
module should work (at least with matplotlib 1.2.1 with Python 2.7.5), as in the example code below. Also, if you are using scatter plots, use scatterpoints=1
rather than numpoints=1
in the legend call to have only one point for each legend entry.
In the code below I've used random values rather than plotting the same range over and over, making all the plots visible (i.e. not overlapping each other).
import matplotlib.pyplot as plt
from numpy.random import random
colors = ['b', 'c', 'y', 'm', 'r']
lo = plt.scatter(random(10), random(10), marker='x', color=colors[0])
ll = plt.scatter(random(10), random(10), marker='o', color=colors[0])
l = plt.scatter(random(10), random(10), marker='o', color=colors[1])
a = plt.scatter(random(10), random(10), marker='o', color=colors[2])
h = plt.scatter(random(10), random(10), marker='o', color=colors[3])
hh = plt.scatter(random(10), random(10), marker='o', color=colors[4])
ho = plt.scatter(random(10), random(10), marker='x', color=colors[4])
plt.legend((lo, ll, l, a, h, hh, ho),
('Low Outlier', 'LoLo', 'Lo', 'Average', 'Hi', 'HiHi', 'High Outlier'),
scatterpoints=1,
loc='lower left',
ncol=3,
fontsize=8)
plt.show()
To plot a scatter in 3D, use the plot
method, as the legend does not support Patch3DCollection
as is returned by the scatter
method of an Axes3D
instance. To specify the markerstyle you can include this as a positional argument in the method call, as seen in the example below. Optionally one can include argument to both the linestyle
and marker
parameters.
import matplotlib.pyplot as plt
from numpy.random import random
from mpl_toolkits.mplot3d import Axes3D
colors=['b', 'c', 'y', 'm', 'r']
ax = plt.subplot(111, projection='3d')
ax.plot(random(10), random(10), random(10), 'x', color=colors[0], label='Low Outlier')
ax.plot(random(10), random(10), random(10), 'o', color=colors[0], label='LoLo')
ax.plot(random(10), random(10), random(10), 'o', color=colors[1], label='Lo')
ax.plot(random(10), random(10), random(10), 'o', color=colors[2], label='Average')
ax.plot(random(10), random(10), random(10), 'o', color=colors[3], label='Hi')
ax.plot(random(10), random(10), random(10), 'o', color=colors[4], label='HiHi')
ax.plot(random(10), random(10), random(10), 'x', color=colors[4], label='High Outlier')
plt.legend(loc='upper left', numpoints=1, ncol=3, fontsize=8, bbox_to_anchor=(0, 0))
plt.show()
A bit late to the party, but JQuery change inner text but preserve html has at least one approach not mentioned here:
var $td = $("#demoTable td");
$td.html($td.html().replace('Tap on APN and Enter', 'new text'));
Without fixing the text, you could use (snother)[https://stackoverflow.com/a/37828788/1587329]:
var $a = $('#demoTable td'); var inner = ''; $a.children.html().each(function() { inner = inner + this.outerHTML; }); $a.html('New text' + inner);
@mikejonesguy answer is perfect, just in case you plan to test room migrations (recommended), add the schema location to the source sets.
In your build.gradle file you specify a folder to place these generated schema JSON files. As you update your schema, you’ll end up with several JSON files, one for every version. Make sure you commit every generated file to source control. The next time you increase your version number again, Room will be able to use the JSON file for testing.
- Florina Muntenescu (source)
build.gradle
android {
// [...]
defaultConfig {
// [...]
javaCompileOptions {
annotationProcessorOptions {
arguments = ["room.schemaLocation": "$projectDir/schemas".toString()]
}
}
}
// add the schema location to the source sets
// used by Room, to test migrations
sourceSets {
androidTest.assets.srcDirs += files("$projectDir/schemas".toString())
}
// [...]
}
You can prefer quick-json parser to meet your requirement...
quick-json parser is very straight forward, flexible, very fast and customizable. Try this out
[quick-json parser] (https://code.google.com/p/quick-json/) - quick-json features -
Compliant with JSON specification (RFC4627)
High-Performance JSON parser
Supports Flexible/Configurable parsing approach
Configurable validation of key/value pairs of any JSON Heirarchy
Easy to use # Very Less foot print
Raises developer friendly and easy to trace exceptions
Pluggable Custom Validation support - Keys/Values can be validated by configuring custom validators as and when encountered
Validating and Non-Validating parser support
Support for two types of configuration (JSON/XML) for using quick-json validating parser
Require JDK 1.5 # No dependency on external libraries
Support for Json Generation through object serialization
Support for collection type selection during parsing process
For e.g.
JsonParserFactory factory=JsonParserFactory.getInstance();
JSONParser parser=factory.newJsonParser();
Map jsonMap=parser.parseJson(jsonString);
You can also check it by doing.
if(count($array) > 0)
{
echo 'Error';
}
else
{
echo 'No Error';
}
Is this what you are after?
select * from tempdb..sysobjects
--for sql-server 2000 and later versions
select * from tempdb.sys.objects
--for sql-server 2005 and later versions
The psql \o
command was already described by jhwist.
An alternative approach is using the COPY TO
command to write directly to a file on the server. This has the advantage that it's dumped in an easy-to-parse format of your choice -- rather than psql's tabulated format. It's also very easy to import to another table/database using COPY FROM
.
NB! This requires superuser privileges and will write to a file on the server.
Example: COPY (SELECT foo, bar FROM baz) TO '/tmp/query.csv' (format csv, delimiter ';')
Creates a CSV file with ';' as the field separator.
As always, see the documentation for details
the plus works just fine, i personally prefer using the concat function.
var s = string.Concat(string 1, string 2, string, 3, etc)