According to the error message, you declared myLoc
as a pointer to an NSInteger (NSInteger *myLoc
) rather than an actual NSInteger (NSInteger myLoc
). It needs to be the latter.
The only problem with threads is accessing the same object from different threads without synchronization.
If each function only uses parameters for reading and local variables, they don't need any synchronization to be thread-safe.
This happens when you index a row/column with a number that is larger than the dimensions of your dataframe
. For instance, getting the eleventh column when you have only three.
import pandas as pd
df = pd.DataFrame({'Name': ['Mark', 'Laura', 'Adam', 'Roger', 'Anna'],
'City': ['Lisbon', 'Montreal', 'Lisbon', 'Berlin', 'Glasgow'],
'Car': ['Tesla', 'Audi', 'Porsche', 'Ford', 'Honda']})
You have 5 rows and three columns:
Name City Car
0 Mark Lisbon Tesla
1 Laura Montreal Audi
2 Adam Lisbon Porsche
3 Roger Berlin Ford
4 Anna Glasgow Honda
Let's try to index the eleventh column (it doesn't exist):
df.iloc[:, 10] # there is obviously no 11th column
IndexError: single positional indexer is out-of-bounds
If you are a beginner with Python, remember that df.iloc[:, 10]
would refer to the eleventh column.
Method below also works.
$users = User::all()->map(function ($user) {
return collect($user)->only(['id', 'name', 'email']);
});
I think you can achieve it by using the below code
Model::get(['ColumnName'])->toArray();
You may also use all() method to get array of selected attributes.
$test=test::select('id')->where('id' ,'>' ,0)->all();
Regards
I do like below to :
var book: MutableList<Books> = mutableListOf()
/** Returns a new [MutableList] with the given elements. */
public fun <T> mutableListOf(vararg elements: T): MutableList<T>
= if (elements.size == 0) ArrayList() else ArrayList(ArrayAsCollection(elements, isVarargs = true))
find($id)
takes an id and returns a single model. If no matching model exist, it returns null
.
findOrFail($id)
takes an id and returns a single model. If no matching model exist, it throws an error1.
first()
returns the first record found in the database. If no matching model exist, it returns null
.
firstOrFail()
returns the first record found in the database. If no matching model exist, it throws an error1.
get()
returns a collection of models matching the query.
pluck($column)
returns a collection of just the values in the given column. In previous versions of Laravel this method was called lists
.
toArray()
converts the model/collection into a simple PHP array.
Note: a collection is a beefed up array. It functions similarly to an array, but has a lot of added functionality, as you can see in the docs.
Unfortunately, PHP doesn't let you use a collection object everywhere you can use an array. For example, using a collection in a foreach
loop is ok, put passing it to array_map
is not. Similarly, if you type-hint an argument as array
, PHP won't let you pass it a collection. Starting in PHP 7.1, there is the iterable
typehint, which can be used to accept both arrays and collections.
If you ever want to get a plain array from a collection, call its all()
method.
1 The error thrown by the findOrFail
and firstOrFail
methods is a ModelNotFoundException
. If you don't catch this exception yourself, Laravel will respond with a 404, which is what you want most of the time.
if you are using jQuery to send AJAX Posts, add this code to all views:
$( document ).on( 'ajaxSend', addLaravelCSRF );
function addLaravelCSRF( event, jqxhr, settings ) {
jqxhr.setRequestHeader( 'X-XSRF-TOKEN', getCookie( 'XSRF-TOKEN' ) );
}
function getCookie(name) {
function escape(s) { return s.replace(/([.*+?\^${}()|\[\]\/\\])/g, '\\$1'); };
var match = document.cookie.match(RegExp('(?:^|;\\s*)' + escape(name) + '=([^;]*)'));
return match ? match[1] : null;
}
Laravel adds a XSRF cookie to all requests, and we automatically append it to all AJAX requests just before submit.
You may replace getCookie function if there is another function or jQuery plugin to do the same thing.
You may be encouraged to use the Element.getBoundingClientRect() method to get the top offset of your element. This method provides the full offset values (left, top, right, bottom, width, height) of your element in the viewport.
Check the John Resig's post describing how helpful this method is.
In Scala and Spark 2+, try this (assuming your column name is "s"):
df.select('s).as[String].collect
Use: Arrays.copyOf(yourArray,n);
I wrote a version that works using only numpy. I hope it helps you.
import numpy as np
def perf_metrics_2X2(yobs, yhat):
"""
Returns the specificity, sensitivity, positive predictive value, and
negative predictive value
of a 2X2 table.
where:
0 = negative case
1 = positive case
Parameters
----------
yobs : array of positive and negative ``observed`` cases
yhat : array of positive and negative ``predicted`` cases
Returns
-------
sensitivity = TP / (TP+FN)
specificity = TN / (TN+FP)
pos_pred_val = TP/ (TP+FP)
neg_pred_val = TN/ (TN+FN)
Author: Julio Cardenas-Rodriguez
"""
TP = np.sum( yobs[yobs==1] == yhat[yobs==1] )
TN = np.sum( yobs[yobs==0] == yhat[yobs==0] )
FP = np.sum( yobs[yobs==1] == yhat[yobs==0] )
FN = np.sum( yobs[yobs==0] == yhat[yobs==1] )
sensitivity = TP / (TP+FN)
specificity = TN / (TN+FP)
pos_pred_val = TP/ (TP+FP)
neg_pred_val = TN/ (TN+FN)
return sensitivity, specificity, pos_pred_val, neg_pred_val
I was using a simple call instead of async
. As soon I added await
and made method async
it started working fine.
public async Task<T> ExecuteScalarAsync<T>(string query, object parameter = null, CommandType commandType = CommandType.Text) where T : IConvertible
{
using (IDbConnection db = new SqlConnection(_con))
{
return await db.ExecuteScalarAsync<T>(query, parameter, null, null, commandType);
}
}
Error message clearly says that source
parameter is null
. Source is the enumerable you are enumerating. In your case it is ListMetadataKor
object. And its definitely null
at the time you are filtering it second time. Make sure you never assign null
to this list. Just check all references to this list in your code and look for assignments.
You could just specify the following property -Dhttps.protocols=TLSv1.1,TLSv1.2 at your server which configures the JVM to specify which TLS protocol version should be used during all https connections from client.
CryptoSwift Example
Updated to Swift 2
import Foundation
import CryptoSwift
extension String {
func aesEncrypt(key: String, iv: String) throws -> String{
let data = self.dataUsingEncoding(NSUTF8StringEncoding)
let enc = try AES(key: key, iv: iv, blockMode:.CBC).encrypt(data!.arrayOfBytes(), padding: PKCS7())
let encData = NSData(bytes: enc, length: Int(enc.count))
let base64String: String = encData.base64EncodedStringWithOptions(NSDataBase64EncodingOptions(rawValue: 0));
let result = String(base64String)
return result
}
func aesDecrypt(key: String, iv: String) throws -> String {
let data = NSData(base64EncodedString: self, options: NSDataBase64DecodingOptions(rawValue: 0))
let dec = try AES(key: key, iv: iv, blockMode:.CBC).decrypt(data!.arrayOfBytes(), padding: PKCS7())
let decData = NSData(bytes: dec, length: Int(dec.count))
let result = NSString(data: decData, encoding: NSUTF8StringEncoding)
return String(result!)
}
}
Usage:
let key = "bbC2H19lkVbQDfakxcrtNMQdd0FloLyw" // length == 32
let iv = "gqLOHUioQ0QjhuvI" // length == 16
let s = "string to encrypt"
let enc = try! s.aesEncrypt(key, iv: iv)
let dec = try! enc.aesDecrypt(key, iv: iv)
print(s) // string to encrypt
print("enc:\(enc)") // 2r0+KirTTegQfF4wI8rws0LuV8h82rHyyYz7xBpXIpM=
print("dec:\(dec)") // string to encrypt
print("\(s == dec)") // true
Make sure you have the right length of iv (16) and key (32) then you won't hit "Block size and Initialization Vector must be the same length!" error.
You can try this:
Map<String,String> map = new HashMap<>();
Map.Entry<String,String> entry = map.entrySet().iterator().next();
String key = entry.getKey();
String value = entry.getValue();
Keep in mind, HashMap
does not guarantee the insertion order. Use a LinkedHashMap
to keep the order intact.
Eg:
Map<String,String> map = new LinkedHashMap<>();
map.put("Active","33");
map.put("Renewals Completed","3");
map.put("Application","15");
Map.Entry<String,String> entry = map.entrySet().iterator().next();
String key= entry.getKey();
String value=entry.getValue();
System.out.println(key);
System.out.println(value);
Output:
Active
33
Its very simple. You can use like this :-
Suppose You have one users table and you want to fetch the id only
$users = DB::table('users')->select('id')->get();
$users = json_decode(json_encode($users)); //it will return you stdclass object
$users = json_decode(json_encode($users),true); //it will return you data in array
echo '<pre>'; print_r($users);
Hope it helps
You can use:
public YourClass[] AllProducts()
{
try
{
using (UserDataDataContext db = new UserDataDataContext())
{
return db.mrobProducts.Where(x => x.Status == 1)
.OrderBy(x => x.ID)
.Select(x => new YourClass { ID = x.ID, Name = x.Name, Price = x.Price})
.ToArray();
}
}
catch
{
return null;
}
}
And here is YourClass
implementation:
public class YourClass
{
public string Name {get; set;}
public int ID {get; set;}
public int Price {get; set;}
}
And your AllProducts
method's return type must be YourClass[]
.
laravel 5.8
If you don't even need an entire row, you may extract a single value from a record using the value()
method. This method will return the value of the column directly:
$first_name = DB::table('users')->where('email' ,'me@mail,com')->value('first_name');
check docs
In the case you're interested in extremely minor, almost immeasurable performance increases, add a constructor to your Line
class, giving you such:
public class Line
{
public Line(string sku, int qty)
{
this.Sku = sku;
this.Qty = qty;
}
public string Sku { get; set; }
public int Qty { get; set; }
}
Then create a specialized collection class based on List<Line>
with one new method, Add
:
public class LineList : List<Line>
{
public void Add(string sku, int qty)
{
this.Add(new Line(sku, qty));
}
}
Then the code which populates your list gets a bit less verbose by using a collection initializer:
LineList myLines = new LineList
{
{ "ABCD1", 1 },
{ "ABCD2", 1 },
{ "ABCD3", 1 }
};
And, of course, as the other answers state, it's trivial to extract the SKUs into a string array with LINQ:
string[] mySKUsArray = myLines.Select(myLine => myLine.Sku).ToArray();
public static function custom_validation()
{
$rules = array('title' => 'required ','description' => 'required','status' => 'required',);
$messages = array('title.required' => 'The Title must be required','status.required' => 'The Status must be required','description.required' => 'The Description must be required',);
$validation = Validator::make(Input::all(), $rules, $messages);
return $validation;
}
This exception because of when you call session.getEntityById()
, the session will be closed. So you need to re-attach the entity to the session. Or Easy solution is just configure default-lazy="false"
to your entity.hbm.xml
or if you are using annotations just add @Proxy(lazy=false)
to your entity class.
try this one
DB::table('user')->where('name','Jhon')->get();
just remove the "=" sign . . . .because you are trying to array just the name 'jhon' . . . . . . . .I hope it's help you . .
None of those worked for me in Chrome 42...
Instead my directive now uses this link
function (base64
made it work):
link: function(scope, element, attrs) {
var downloadFile = function downloadFile() {
var filename = scope.getFilename();
var link = angular.element('<a/>');
link.attr({
href: 'data:attachment/csv;base64,' + encodeURI($window.btoa(scope.csv)),
target: '_blank',
download: filename
})[0].click();
$timeout(function(){
link.remove();
}, 50);
};
element.bind('click', function(e) {
scope.buildCSV().then(function(csv) {
downloadFile();
});
scope.$apply();
});
}
If the value stored in PropertyLoader.RET_SECONDARY_V_ARRAY
is not "V_ARRAY"
, then you are using different types; even if they are declared identically (e.g. both are table of number
) this will not work.
You're hitting this data type compatibility restriction:
You can assign a collection to a collection variable only if they have the same data type. Having the same element type is not enough.
You're trying to call the procedure with a parameter that is a different type to the one it's expecting, which is what the error message is telling you.
You can do this in a one liner using the JSON methods if you're willing to lose a tiny bit of performance (though some have reported it being faster than iterating through the objects recursively - most likely because PHP is slow at calling functions). "But I already did this" you say. Not exactly - you used json_decode
on the array, but you need to encode it with json_encode
first.
The json_encode
and json_decode
methods. These are automatically bundled in PHP 5.2.0 and up. If you use any older version there's also a PECL library (that said, in that case you should really update your PHP installation. Support for 5.1 stopped in 2006.)
array
/stdClass
-> stdClass
$stdClass = json_decode(json_encode($booking));
array
/stdClass
-> array
The manual specifies the second argument of json_decode
as:
assoc
WhenTRUE
, returned objects will be converted into associative arrays.
Hence the following line will convert your entire object into an array:
$array = json_decode(json_encode($booking), true);
It depends on how often you insert or read. You can increase the array by more than one if needed.
numberOfItems = ??
' ...
If numberOfItems+1 >= arr.Length Then
Array.Resize(arr, arr.Length + 10)
End If
arr(numberOfItems) = newItem
numberOfItems += 1
Also for A, you only need to get the array if needed.
Dim list As List(Of Integer)(arr) ' Do this only once, keep a reference to the list
' If you create a new List everything you add an item then this will never be fast
'...
list.Add(newItem)
arrayWasModified = True
' ...
Function GetArray()
If arrayWasModified Then
arr = list.ToArray()
End If
Return Arr
End Function
If you have the time, I suggest you convert it all to List and remove arrays.
* My code might not compile
A way to do this without Linq & Lambdas
string source = "a,b, b, c";
string[] items = source.Split(new char[] { ',', ' ' }, StringSplitOptions.RemoveEmptyEntries);
The fastest way i could find out is this :
var myArray = (byte[]) new ImageConverter().ConvertTo(InputImg, typeof(byte[]));
Hope to be useful
So far all proposed solutions work with separate char
items, not code points. I'd like to propose two solutions to properly handle surrogate pairs as well (those are characters from U+10000 to U+10FFFF, composed of two char
items).
1) One-line O(n logn) solution which utilizes Java 8 CharSequence.codePoints()
stream:
static boolean areAnagrams(CharSequence a, CharSequence b) {
return Arrays.equals(a.codePoints().sorted().toArray(),
b.codePoints().sorted().toArray());
}
2) Less elegant O(n) solution (in fact, it will be faster only for long strings with low chances to be anagrams):
static boolean areAnagrams(CharSequence a, CharSequence b) {
int len = a.length();
if (len != b.length())
return false;
// collect codepoint occurrences in "a"
Map<Integer, Integer> ocr = new HashMap<>(64);
a.codePoints().forEach(c -> ocr.merge(c, 1, Integer::sum));
// for each codepoint in "b", look for matching occurrence
for (int i = 0, c = 0; i < len; i += Character.charCount(c)) {
int cc = ocr.getOrDefault((c = Character.codePointAt(b, i)), 0);
if (cc == 0)
return false;
ocr.put(c, cc - 1);
}
return true;
}
Use a HashSet<string>
instead of a List<string>
. It is prepared to perform a better performance because you don't need to provide checks for any items. The collection will manage it for you. That is the difference between a list
and a set
. For sample:
HashSet<string> set = new HashSet<string>();
set.Add("a");
set.Add("a");
set.Add("b");
set.Add("c");
set.Add("b");
set.Add("c");
set.Add("a");
set.Add("d");
set.Add("e");
set.Add("e");
var total = set.Count;
Total is 5
and the values are a
, b
, c
, d
, e
.
The implemention of List<T>
does not give you nativelly. You can do it, but you have to provide this control. For sample, this extension method
:
public static class CollectionExtensions
{
public static void AddItem<T>(this List<T> list, T item)
{
if (!list.Contains(item))
{
list.Add(item);
}
}
}
and use it:
var list = new List<string>();
list.AddItem(1);
list.AddItem(2);
list.AddItem(3);
list.AddItem(2);
list.AddItem(4);
list.AddItem(5);
Usually this happens if something is wrong with the byte array.
File.WriteAllBytes("filename.PDF", Byte[]);
This creates a new file, writes the specified byte array to the file, and then closes the file. If the target file already exists, it is overwritten.
Asynchronous implementation of this is also available.
public static System.Threading.Tasks.Task WriteAllBytesAsync
(string path, byte[] bytes, System.Threading.CancellationToken cancellationToken = null);
First We Need To Write into our Memory Stream and then with the help of Memory Stream method "WriteTo" we can write to the Response of the Page as shown in the below code.
MemoryStream filecontent = null;
filecontent =//CommonUtility.ExportToPdf(inputXMLtoXSLT);(This will be your MemeoryStream Content)
Response.ContentType = "image/pdf";
string headerValue = string.Format("attachment; filename={0}", formName.ToUpper() + ".pdf");
Response.AppendHeader("Content-Disposition", headerValue);
filecontent.WriteTo(Response.OutputStream);
Response.End();
FormName is the fileName given,This code will make the generated PDF file downloadable by invoking a PopUp.
Some important facts were not given in other answers:
"async await" is more complex at CIL level and thus costs memory and CPU time.
Any task can be canceled if the waiting time is unacceptable.
In the case "async await" we do not have a handler for such a task to cancel it or monitoring it.
Using Task is more flexible then "async await".
Any sync functionality can by wrapped by async.
public async Task<ActionResult> DoAsync(long id)
{
return await Task.Run(() => { return DoSync(id); } );
}
"async await" generate many problems. We do not now is await statement will be reached without runtime and context debugging. If first await not reached everything is blocked. Some times even await seems to be reached still everything is blocked:
https://github.com/dotnet/runtime/issues/36063
I do not see why I'm must live with the code duplication for sync and async method or using hacks.
Conclusion: Create Task manually and control them is much better. Handler to Task give more control. We can monitor Tasks and manage them:
https://github.com/lsmolinski/MonitoredQueueBackgroundWorkItem
Sorry for my english.
Networking code is notoriously difficult to write, test and debug.
You often have lots of things to consider such as:
what "endian" will you use for the data that is exchanged (Intel x86/x64 is based on little-endian) - systems that use big-endian can still read data that is in little-endian (and vice versa), but they have to rearrange the data. When documenting your "protocol" just make it clear which one you are using.
are there any "settings" that have been set on the sockets which can affect how the "stream" behaves (e.g. SO_LINGER) - you might need to turn certain ones on or off if your code is very sensitive
how does congestion in the real world which causes delays in the stream affect your reading/writing logic
If the "message" being exchanged between a client and server (in either direction) can vary in size then often you need to use a strategy in order for that "message" to be exchanged in a reliable manner (aka Protocol).
Here are several different ways to handle the exchange:
have the message size encoded in a header that precedes the data - this could simply be a "number" in the first 2/4/8 bytes sent (dependent on your max message size), or could be a more exotic "header"
use a special "end of message" marker (sentinel), with the real data encoded/escaped if there is the possibility of real data being confused with an "end of marker"
use a timeout....i.e. a certain period of receiving no bytes means there is no more data for the message - however, this can be error prone with short timeouts, which can easily be hit on congested streams.
have a "command" and "data" channel on separate "connections"....this is the approach the FTP protocol uses (the advantage is clear separation of data from commands...at the expense of a 2nd connection)
Each approach has its pros and cons for "correctness".
The code below uses the "timeout" method, as that seems to be the one you want.
See http://msdn.microsoft.com/en-us/library/bk6w7hs8.aspx. You can get access to the NetworkStream
on the TCPClient
so you can change the ReadTimeout
.
string SendCmd(string cmd, string ip, int port)
{
var client = new TcpClient(ip, port);
var data = Encoding.GetEncoding(1252).GetBytes(cmd);
var stm = client.GetStream();
// Set a 250 millisecond timeout for reading (instead of Infinite the default)
stm.ReadTimeout = 250;
stm.Write(data, 0, data.Length);
byte[] resp = new byte[2048];
var memStream = new MemoryStream();
int bytesread = stm.Read(resp, 0, resp.Length);
while (bytesread > 0)
{
memStream.Write(resp, 0, bytesread);
bytesread = stm.Read(resp, 0, resp.Length);
}
return Encoding.GetEncoding(1252).GetString(memStream.ToArray());
}
As a footnote for other variations on this writing network code...when doing a Read
where you want to avoid a "block", you can check the DataAvailable
flag and then ONLY read what is in the buffer checking the .Length
property e.g. stm.Read(resp, 0, stm.Length);
The equals() method on your List implementation should do elementwise comparison, so
assertEquals(argumentComponents, returnedComponents);
is a lot easier.
A) What do I not understand about how the Google Apps Script console works with respect to printing so that I can see if my code is accomplishing what I'd like?
The code on .gs files of a Google Apps Script project run on the server rather than on the web browser. The way to log messages was to use the Class Logger.
B) Is it a problem with the code?
As the error message said, the problem was that console
was not defined but nowadays the same code will throw other error:
ReferenceError: "playerArray" is not defined. (line 12, file "Code")
That is because the playerArray is defined as local variable. Moving the line out of the function will solve this.
var playerArray = [];
function addplayerstoArray(numplayers) {
for (i=0; i<numplayers; i++) {
playerArray.push(i);
}
}
addplayerstoArray(7);
console.log(playerArray[3])
Now that the code executes without throwing errors, instead to look at the browser console we should look at the Stackdriver Logging. From the Google Apps Script editor UI click on View > Stackdriver Logging.
On 2017 Google released to all scripts Stackdriver Logging and added the Class Console, so including something like console.log('Hello world!')
will not throw an error but the log will be on Google Cloud Platform Stackdriver Logging Service instead of the browser console.
From Google Apps Script Release Notes 2017
June 23, 2017
Stackdriver Logging has been moved out of Early Access. All scripts now have access to Stackdriver logging.
From Logging > Stackdriver logging
The following example shows how to use the console service to log information in Stackdriver.
function measuringExecutionTime() { // A simple INFO log message, using sprintf() formatting. console.info('Timing the %s function (%d arguments)', 'myFunction', 1); // Log a JSON object at a DEBUG level. The log is labeled // with the message string in the log viewer, and the JSON content // is displayed in the expanded log structure under "structPayload". var parameters = { isValid: true, content: 'some string', timestamp: new Date() }; console.log({message: 'Function Input', initialData: parameters}); var label = 'myFunction() time'; // Labels the timing log entry. console.time(label); // Starts the timer. try { myFunction(parameters); // Function to time. } catch (e) { // Logs an ERROR message. console.error('myFunction() yielded an error: ' + e); } console.timeEnd(label); // Stops the timer, logs execution duration. }
You can use Task.WhenAll
function that you can pass n tasks; Task.WhenAll
will return a task which runs to completion when all the tasks that you passed to Task.WhenAll
complete. You have to wait asynchronously on Task.WhenAll
so that you'll not block your UI thread:
public async Task DoSomeThing() {
var Task[] tasks = new Task[numTasks];
for(int i = 0; i < numTask; i++)
{
tasks[i] = CallSomeAsync();
}
await Task.WhenAll(tasks);
// code that'll execute on UI thread
}
First off, if you want to extract count features and apply TF-IDF normalization and row-wise euclidean normalization you can do it in one operation with TfidfVectorizer
:
>>> from sklearn.feature_extraction.text import TfidfVectorizer
>>> from sklearn.datasets import fetch_20newsgroups
>>> twenty = fetch_20newsgroups()
>>> tfidf = TfidfVectorizer().fit_transform(twenty.data)
>>> tfidf
<11314x130088 sparse matrix of type '<type 'numpy.float64'>'
with 1787553 stored elements in Compressed Sparse Row format>
Now to find the cosine distances of one document (e.g. the first in the dataset) and all of the others you just need to compute the dot products of the first vector with all of the others as the tfidf vectors are already row-normalized.
As explained by Chris Clark in comments and here Cosine Similarity does not take into account the magnitude of the vectors. Row-normalised have a magnitude of 1 and so the Linear Kernel is sufficient to calculate the similarity values.
The scipy sparse matrix API is a bit weird (not as flexible as dense N-dimensional numpy arrays). To get the first vector you need to slice the matrix row-wise to get a submatrix with a single row:
>>> tfidf[0:1]
<1x130088 sparse matrix of type '<type 'numpy.float64'>'
with 89 stored elements in Compressed Sparse Row format>
scikit-learn already provides pairwise metrics (a.k.a. kernels in machine learning parlance) that work for both dense and sparse representations of vector collections. In this case we need a dot product that is also known as the linear kernel:
>>> from sklearn.metrics.pairwise import linear_kernel
>>> cosine_similarities = linear_kernel(tfidf[0:1], tfidf).flatten()
>>> cosine_similarities
array([ 1. , 0.04405952, 0.11016969, ..., 0.04433602,
0.04457106, 0.03293218])
Hence to find the top 5 related documents, we can use argsort
and some negative array slicing (most related documents have highest cosine similarity values, hence at the end of the sorted indices array):
>>> related_docs_indices = cosine_similarities.argsort()[:-5:-1]
>>> related_docs_indices
array([ 0, 958, 10576, 3277])
>>> cosine_similarities[related_docs_indices]
array([ 1. , 0.54967926, 0.32902194, 0.2825788 ])
The first result is a sanity check: we find the query document as the most similar document with a cosine similarity score of 1 which has the following text:
>>> print twenty.data[0]
From: [email protected] (where's my thing)
Subject: WHAT car is this!?
Nntp-Posting-Host: rac3.wam.umd.edu
Organization: University of Maryland, College Park
Lines: 15
I was wondering if anyone out there could enlighten me on this car I saw
the other day. It was a 2-door sports car, looked to be from the late 60s/
early 70s. It was called a Bricklin. The doors were really small. In addition,
the front bumper was separate from the rest of the body. This is
all I know. If anyone can tellme a model name, engine specs, years
of production, where this car is made, history, or whatever info you
have on this funky looking car, please e-mail.
Thanks,
- IL
---- brought to you by your neighborhood Lerxst ----
The second most similar document is a reply that quotes the original message hence has many common words:
>>> print twenty.data[958]
From: [email protected] (Robert Seymour)
Subject: Re: WHAT car is this!?
Article-I.D.: reed.1993Apr21.032905.29286
Reply-To: [email protected]
Organization: Reed College, Portland, OR
Lines: 26
In article <[email protected]> [email protected] (where's my
thing) writes:
>
> I was wondering if anyone out there could enlighten me on this car I saw
> the other day. It was a 2-door sports car, looked to be from the late 60s/
> early 70s. It was called a Bricklin. The doors were really small. In
addition,
> the front bumper was separate from the rest of the body. This is
> all I know. If anyone can tellme a model name, engine specs, years
> of production, where this car is made, history, or whatever info you
> have on this funky looking car, please e-mail.
Bricklins were manufactured in the 70s with engines from Ford. They are rather
odd looking with the encased front bumper. There aren't a lot of them around,
but Hemmings (Motor News) ususally has ten or so listed. Basically, they are a
performance Ford with new styling slapped on top.
> ---- brought to you by your neighborhood Lerxst ----
Rush fan?
--
Robert Seymour [email protected]
Physics and Philosophy, Reed College (NeXTmail accepted)
Artificial Life Project Reed College
Reed Solar Energy Project (SolTrain) Portland, OR
You can do:
getMap(locations.toArray(new WorldLocation[locations.size()]));
or
getMap(locations.toArray(new WorldLocation[0]));
or
getMap(new WorldLocation[locations.size()]);
@SuppressWarnings("unchecked")
is needed to remove the ide warning.
Convert the message to a character array, then use a for loop to change it to a string
string message = "This Is A Test";
string[] result = new string[message.Length];
char[] temp = new char[message.Length];
temp = message.ToCharArray();
for (int i = 0; i < message.Length - 1; i++)
{
result[i] = Convert.ToString(temp[i]);
}
What I understand your question is that you want to fetch an element in an ArrayList
at a specific location.
Suppose your list contains Integers 1,2,3,4,5 and you want to fetch the value 3. Then the following lines of code will work.
ArrayList<Integer> list = new ArrayList<Integer>();
if(list.contains(3)){//check if the list contains the element
list.get(list.indexOf(3));//get the element by passing the index of the element
}
Either ways you could use list.get(list.lastIndexOf(3))
Try this:
List list = new ArrayList();
list.add("Apple");
list.add("Banana");
Object[] ol = list.toArray();
If I understand well, you want to Join ScheduleRequest
with User
and apply the in
clause to the userName
property of the entity User
.
I'd need to work a bit on this schema. But you can try with this trick, that is much more readable than the code you posted, and avoids the Join
part (because it handles the Join
logic outside the Criteria Query).
List<String> myList = new ArrayList<String> ();
for (User u : usersList) {
myList.add(u.getUsername());
}
Expression<String> exp = scheduleRequest.get("createdBy");
Predicate predicate = exp.in(myList);
criteria.where(predicate);
In order to write more type-safe code you could also use Metamodel by replacing this line:
Expression<String> exp = scheduleRequest.get("createdBy");
with this:
Expression<String> exp = scheduleRequest.get(ScheduleRequest_.createdBy);
If it works, then you may try to add the Join
logic into the Criteria Query
. But right now I can't test it, so I prefer to see if somebody else wants to try.
Not a perfect answer though may be code snippets might help.
public <T> List<T> findListWhereInCondition(Class<T> clazz,
String conditionColumnName, Serializable... conditionColumnValues) {
QueryBuilder<T> queryBuilder = new QueryBuilder<T>(clazz);
addWhereInClause(queryBuilder, conditionColumnName,
conditionColumnValues);
queryBuilder.select();
return queryBuilder.getResultList();
}
private <T> void addWhereInClause(QueryBuilder<T> queryBuilder,
String conditionColumnName, Serializable... conditionColumnValues) {
Path<Object> path = queryBuilder.root.get(conditionColumnName);
In<Object> in = queryBuilder.criteriaBuilder.in(path);
for (Serializable conditionColumnValue : conditionColumnValues) {
in.value(conditionColumnValue);
}
queryBuilder.criteriaQuery.where(in);
}
Follow this:
List<string> name = new List<string>();
name.Add("Latif");
name.Add("Ram");
name.Add("Adam");
string nameOfString = (string.Join(",", name.Select(x => x.ToString()).ToArray()));
Iterables.getLast
from Google Guava.
It has some optimization for List
s and SortedSet
s too.
When the FragmentPagerAdapter
adds a fragment to the FragmentManager, it uses a special tag based on the particular position that the fragment will be placed. FragmentPagerAdapter.getItem(int position)
is only called when a fragment for that position does not exist. After rotating, Android will notice that it already created/saved a fragment for this particular position and so it simply tries to reconnect with it with FragmentManager.findFragmentByTag()
, instead of creating a new one. All of this comes free when using the FragmentPagerAdapter
and is why it is usual to have your fragment initialisation code inside the getItem(int)
method.
Even if we were not using a FragmentPagerAdapter
, it is not a good idea to create a new fragment every single time in Activity.onCreate(Bundle)
. As you have noticed, when a fragment is added to the FragmentManager, it will be recreated for you after rotating and there is no need to add it again. Doing so is a common cause of errors when working with fragments.
A usual approach when working with fragments is this:
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
...
CustomFragment fragment;
if (savedInstanceState != null) {
fragment = (CustomFragment) getSupportFragmentManager().findFragmentByTag("customtag");
} else {
fragment = new CustomFragment();
getSupportFragmentManager().beginTransaction().add(R.id.container, fragment, "customtag").commit();
}
...
}
When using a FragmentPagerAdapter
, we relinquish fragment management to the adapter, and do not have to perform the above steps. By default, it will only preload one Fragment in front and behind the current position (although it does not destroy them unless you are using FragmentStatePagerAdapter
). This is controlled by ViewPager.setOffscreenPageLimit(int). Because of this, directly calling methods on the fragments outside of the adapter is not guaranteed to be valid, because they may not even be alive.
To cut a long story short, your solution to use putFragment
to be able to get a reference afterwards is not so crazy, and not so unlike the normal way to use fragments anyway (above). It is difficult to obtain a reference otherwise because the fragment is added by the adapter, and not you personally. Just make sure that the offscreenPageLimit
is high enough to load your desired fragments at all times, since you rely on it being present. This bypasses lazy loading capabilities of the ViewPager, but seems to be what you desire for your application.
Another approach is to override FragmentPageAdapter.instantiateItem(View, int)
and save a reference to the fragment returned from the super call before returning it (it has the logic to find the fragment, if already present).
For a fuller picture, have a look at some of the source of FragmentPagerAdapter (short) and ViewPager (long).
In Python, the Scipy library can be used to convert the 2-D NumPy matrix into a Sparse matrix. SciPy 2-D sparse matrix package for numeric data is scipy.sparse
The scipy.sparse package provides different Classes to create the following types of Sparse matrices from the 2-dimensional matrix:
CSR (Compressed Sparse Row) or CSC (Compressed Sparse Column) formats support efficient access and matrix operations.
Example code to Convert Numpy matrix into Compressed Sparse Column(CSC) matrix & Compressed Sparse Row (CSR) matrix using Scipy classes:
import sys # Return the size of an object in bytes
import numpy as np # To create 2 dimentional matrix
from scipy.sparse import csr_matrix, csc_matrix
# csr_matrix: used to create compressed sparse row matrix from Matrix
# csc_matrix: used to create compressed sparse column matrix from Matrix
create a 2-D Numpy matrix
A = np.array([[1, 0, 0, 0, 0, 0],\
[0, 0, 2, 0, 0, 1],\
[0, 0, 0, 2, 0, 0]])
print("Dense matrix representation: \n", A)
print("Memory utilised (bytes): ", sys.getsizeof(A))
print("Type of the object", type(A))
Print the matrix & other details:
Dense matrix representation:
[[1 0 0 0 0 0]
[0 0 2 0 0 1]
[0 0 0 2 0 0]]
Memory utilised (bytes): 184
Type of the object <class 'numpy.ndarray'>
Converting Matrix A to the Compressed sparse row matrix representation using csr_matrix Class:
S = csr_matrix(A)
print("Sparse 'row' matrix: \n",S)
print("Memory utilised (bytes): ", sys.getsizeof(S))
print("Type of the object", type(S))
The output of print statements:
Sparse 'row' matrix:
(0, 0) 1
(1, 2) 2
(1, 5) 1
(2, 3) 2
Memory utilised (bytes): 56
Type of the object: <class 'scipy.sparse.csr.csc_matrix'>
Converting Matrix A to Compressed Sparse Column matrix representation using csc_matrix Class:
S = csc_matrix(A)
print("Sparse 'column' matrix: \n",S)
print("Memory utilised (bytes): ", sys.getsizeof(S))
print("Type of the object", type(S))
The output of print statements:
Sparse 'column' matrix:
(0, 0) 1
(1, 2) 2
(2, 3) 2
(1, 5) 1
Memory utilised (bytes): 56
Type of the object: <class 'scipy.sparse.csc.csc_matrix'>
As it can be seen the size of the compressed matrices is 56 bytes and the original matrix size is 184 bytes.
For a more detailed explanation and code examples please refer to this article: https://limitlessdatascience.wordpress.com/2020/11/26/sparse-matrix-in-machine-learning/
I can't believe no one made a reference to the Collator. Almost all of these answers will only work for the English language.
You should almost always use a Collator for dictionary based sorting.
For case insensitive collator searching for the English language you do the following:
Collator usCollator = Collator.getInstance(Locale.US);
usCollator.setStrength(Collator.PRIMARY);
Collections.sort(listToSort, usCollator);
I like @fubo's answer the best but I think this is much more elegant.
This method is more compatible because it doesn't manually store the length up front.
Also I've exposed extensions to support compression for string to string, byte[] to byte[], and Stream to Stream.
public static class ZipExtensions
{
public static string CompressToBase64(this string data)
{
return Convert.ToBase64String(Encoding.UTF8.GetBytes(data).Compress());
}
public static string DecompressFromBase64(this string data)
{
return Encoding.UTF8.GetString(Convert.FromBase64String(data).Decompress());
}
public static byte[] Compress(this byte[] data)
{
using (var sourceStream = new MemoryStream(data))
using (var destinationStream = new MemoryStream())
{
sourceStream.CompressTo(destinationStream);
return destinationStream.ToArray();
}
}
public static byte[] Decompress(this byte[] data)
{
using (var sourceStream = new MemoryStream(data))
using (var destinationStream = new MemoryStream())
{
sourceStream.DecompressTo(destinationStream);
return destinationStream.ToArray();
}
}
public static void CompressTo(this Stream stream, Stream outputStream)
{
using (var gZipStream = new GZipStream(outputStream, CompressionMode.Compress))
{
stream.CopyTo(gZipStream);
gZipStream.Flush();
}
}
public static void DecompressTo(this Stream stream, Stream outputStream)
{
using (var gZipStream = new GZipStream(stream, CompressionMode.Decompress))
{
gZipStream.CopyTo(outputStream);
}
}
}
My version:
json_encode(self::toArray($ob))
Implementation:
private static function toArray($object) {
$reflectionClass = new \ReflectionClass($object);
$properties = $reflectionClass->getProperties();
$array = [];
foreach ($properties as $property) {
$property->setAccessible(true);
$value = $property->getValue($object);
if (is_object($value)) {
$array[$property->getName()] = self::toArray($value);
} else {
$array[$property->getName()] = $value;
}
}
return $array;
}
JsonUtils : GitHub
You can return empty array by following two ways:
If you want to return array of int
then
Using {}
:
int arr[] = {};
return arr;
Using new int[0]
:
int arr[] = new int[0];
return arr;
Same way you can return array for other datatypes as well.
The notation List<?>
means "a list of something (but I'm not saying what)". Since the code in test
works for any kind of object in the list, this works as a formal method parameter.
Using a type parameter (like in your point 3), requires that the type parameter be declared. The Java syntax for that is to put <T>
in front of the function. This is exactly analogous to declaring formal parameter names to a method before using the names in the method body.
Regarding List<Object>
not accepting a List<String>
, that makes sense because a String
is not Object
; it is a subclass of Object
. The fix is to declare public static void test(List<? extends Object> set) ...
. But then the extends Object
is redundant, because every class directly or indirectly extends Object
.
Had this issue just today and discovered that I inadvertently left off the @ManyToMany annotation above the @JoinTable annotation.
Guava style:
Set<String> myset = myMap.keySet();
FluentIterable.from(mySet).toArray(String.class);
more info: https://google.github.io/guava/releases/19.0/api/docs/com/google/common/collect/FluentIterable.html
Try explicitly enumerating the results by calling ToList()
.
Change
foreach (var item in query)
to
foreach (var item in query.ToList())
I needed same thing and this solution work fine, hope it can help someone also
Enumeration[] array = Enumeration.values();
List<Enumeration> list = Arrays.asList(array);
then you can get the .name() of your enumeration.
An alternative in Java 8:
String[] strings = list.stream().toArray(String[]::new);
Use this overload of select:
Obj[] myArray = objects.Select(new Func<Obj,Obj>( o =>
{
var someLocalVar = o.someVar;
return new Obj()
{
Var1 = someLocalVar,
Var2 = o.var2
};
})).ToArray();
arrayList.toArray(new Custom[0]);
Unfortunately, this is not currently possible in the latest version of DataContractJsonSerializer. See: http://connect.microsoft.com/VisualStudio/feedback/details/558686/datacontractjsonserializer-should-serialize-dictionary-k-v-as-a-json-associative-array
The current suggested workaround is to use the JavaScriptSerializer as Mark suggested above.
Good luck!
Expanded from @SeaBrightSystems answer, you could try this:
$s1 = "textasstringwoohoo";
$arr = str_split($s1); //$arr now has character array
You need to move type parameter to the method level to indicate that you have a generic method rather than generic class:
public class ArrayUtils {
public static <T> E[] appendToArray(E[] array, E item) {
E[] result = (E[])new Object[array.length+1];
result[array.length] = item;
return result;
}
}
From the shell if you want to show all results you could do db.collection.find().toArray()
to get all results without it.
The only thing I would add to Mark Peters solution is that you don't need to iterate over the ArrayList - you should be able to use the addAll(Collection) method on the Set. You only need to iterate over the entire list to do the summations.
I was getting from a conflict with join table defined in an association class ( with additional custom fields ) annotation and a join table defined in a many-to-many annotation.
The mapping definitions in two entities with a direct many-to-many relationship appeared to result in the automatic creation of the join table using the 'joinTable' annotation. However the join table was already defined by an annotation in its underlying entity class and I wanted it to use this association entity class's own field definitions so as to extend the join table with additional custom fields.
The explanation and solution is that identified by FMaz008 above. In my situation, it was thanks to this post in the forum 'Doctrine Annotation Question'. This post draws attention to the Doctrine documentation regarding ManyToMany Uni-directional relationships. Look at the note regarding the approach of using an 'association entity class' thus replacing the many-to-many annotation mapping directly between two main entity classes with a one-to-many annotation in the main entity classes and two 'many-to-one' annotations in the associative entity class. There is an example provided in this forum post Association models with extra fields:
public class Person {
/** @OneToMany(targetEntity="AssignedItems", mappedBy="person") */
private $assignedItems;
}
public class Items {
/** @OneToMany(targetEntity="AssignedItems", mappedBy="item") */
private $assignedPeople;
}
public class AssignedItems {
/** @ManyToOne(targetEntity="Person")
* @JoinColumn(name="person_id", referencedColumnName="id")
*/
private $person;
/** @ManyToOne(targetEntity="Item")
* @JoinColumn(name="item_id", referencedColumnName="id")
*/
private $item;
}
I tried so many solutions on here that didn't work for me, only displaying some of the ports. But the following displayed All of them and their information.
using (var searcher = new ManagementObjectSearcher("SELECT * FROM Win32_PnPEntity WHERE Caption like '%(COM%'"))
{
var portnames = SerialPort.GetPortNames();
var ports = searcher.Get().Cast<ManagementBaseObject>().ToList().Select(p => p["Caption"].ToString());
var portList = portnames.Select(n => n + " - " + ports.FirstOrDefault(s => s.Contains(n))).ToList();
foreach(string s in portList)
{
Console.WriteLine(s);
}
}
}
I've designed and implemented Dollar for this kind of tasks:
String[] strarray= $(strlist).toArray();
You could write a jQuery function which allowed you to add hidden fields to a form:
// This must be applied to a form (or an object inside a form).
jQuery.fn.addHidden = function (name, value) {
return this.each(function () {
var input = $("<input>").attr("type", "hidden").attr("name", name).val(value);
$(this).append($(input));
});
};
And then add the hidden field before you submit:
var frm = $("#form").addHidden('SaveAndReturn', 'Save and Return')
.submit();
Yes, what you are doing is correct. You are checking to make sure the email field is not an empty string. NULL means the data is missing. An empty string ""
is a blank string with the length of 0.
You can add the null check also
AND (email != "" OR email IS NOT NULL)
List<String> l = new ArrayList<String>(listOfTopicAuthors);
This is accomplished in web.config for your webservice. Set the bindingBehavior to <webHttp> and you will see the clean JSON. The extra "[d]" is set by the default behavior which you need to overwrite.
See in addition this blogpost: http://blog.clauskonrad.net/2010/11/how-to-expose-json-endpoint-from-wcf.html
<TL;DR> The problem is rather simple, actually: you are not matching the declared encoding (in the XML declaration) with the datatype of the input parameter. If you manually added <?xml version="1.0" encoding="utf-8"?><test/>
to the string, then declaring the SqlParameter
to be of type SqlDbType.Xml
or SqlDbType.NVarChar
would give you the "unable to switch the encoding" error. Then, when inserting manually via T-SQL, since you switched the declared encoding to be utf-16
, you were clearly inserting a VARCHAR
string (not prefixed with an upper-case "N", hence an 8-bit encoding, such as UTF-8) and not an NVARCHAR
string (prefixed with an upper-case "N", hence the 16-bit UTF-16 LE encoding).
The fix should have been as simple as:
encoding="utf-8"
: simply don't add the XML declaration.encoding="utf-16"
: either
SqlDbType.NVarChar
instead of SqlDbType.VarChar
:-) (or possibly even switch to using SqlDbType.Xml
)(Detailed response is below)
All of the answers here are over-complicated and unnecessary (regardless of the 121 and 184 up-votes for Christian's and Jon's answers, respectively). They might provide working code, but none of them actually answer the question. The issue is that nobody truly understood the question, which ultimately is about how the XML datatype in SQL Server works. Nothing against those two clearly intelligent people, but this question has little to nothing to do with serializing to XML. Saving XML data into SQL Server is much easier than what is being implied here.
It doesn't really matter how the XML is produced as long as you follow the rules of how to create XML data in SQL Server. I have a more thorough explanation (including working example code to illustrate the points outlined below) in an answer on this question: How to solve “unable to switch the encoding” error when inserting XML into SQL Server, but the basics are:
NVARCHAR(MAX)
or XML
/ SqlDbType.NVarChar
(maxsize = -1) or SqlDbType.Xml
, or if using a string literal then it must be prefixed with an upper-case "N".VARCHAR(MAX)
/ SqlDbType.VarChar
(maxsize = -1), or if using a string literal then it must not be prefixed with an upper-case "N".With the points outlined above in mind, and given that strings in .NET are always UTF-16 LE / UCS-2 LE (there is no difference between those in terms of encoding), we can answer your questions:
Is there a reason why I shouldn't use StringWriter to serialize an Object when I need it as a string afterwards?
No, your StringWriter
code appears to be just fine (at least I see no issues in my limited testing using the 2nd code block from the question).
Wouldn't setting the encoding to UTF-16 (in the xml tag) work then?
It isn't necessary to provide the XML declaration. When it is missing, the encoding is assumed to be UTF-16 LE if you pass the string into SQL Server as NVARCHAR
(i.e. SqlDbType.NVarChar
) or XML
(i.e. SqlDbType.Xml
). The encoding is assumed to be the default 8-bit Code Page if passing in as VARCHAR
(i.e. SqlDbType.VarChar
). If you have any non-standard-ASCII characters (i.e. values 128 and above) and are passing in as VARCHAR
, then you will likely see "?" for BMP characters and "??" for Supplementary Characters as SQL Server will convert the UTF-16 string from .NET into an 8-bit string of the current Database's Code Page before converting it back into UTF-16 / UCS-2. But you shouldn't get any errors.
On the other hand, if you do specify the XML declaration, then you must pass into SQL Server using the matching 8-bit or 16-bit datatype. So if you have a declaration stating that the encoding is either UCS-2 or UTF-16, then you must pass in as SqlDbType.NVarChar
or SqlDbType.Xml
. Or, if you have a declaration stating that the encoding is one of the 8-bit options (i.e. UTF-8
, Windows-1252
, iso-8859-1
, etc), then you must pass in as SqlDbType.VarChar
. Failure to match the declared encoding with the proper 8 or 16 -bit SQL Server datatype will result in the "unable to switch the encoding" error that you were getting.
For example, using your StringWriter
-based serialization code, I simply printed the resulting string of the XML and used it in SSMS. As you can see below, the XML declaration is included (because StringWriter
does not have an option to OmitXmlDeclaration
like XmlWriter
does), which poses no problem so long as you pass the string in as the correct SQL Server datatype:
-- Upper-case "N" prefix == NVARCHAR, hence no error:
DECLARE @Xml XML = N'<?xml version="1.0" encoding="utf-16"?>
<string>Test ?</string>';
SELECT @Xml;
-- <string>Test ?</string>
As you can see, it even handles characters beyond standard ASCII, given that ?
is BMP Code Point U+1234, and is Supplementary Character Code Point U+1F638. However, the following:
-- No upper-case "N" prefix on the string literal, hence VARCHAR:
DECLARE @Xml XML = '<?xml version="1.0" encoding="utf-16"?>
<string>Test ?</string>';
results in the following error:
Msg 9402, Level 16, State 1, Line XXXXX
XML parsing: line 1, character 39, unable to switch the encoding
Ergo, all of that explanation aside, the full solution to your original question is:
You were clearly passing the string in as SqlDbType.VarChar
. Switch to SqlDbType.NVarChar
and it will work without needing to go through the extra step of removing the XML declaration. This is preferred over keeping SqlDbType.VarChar
and removing the XML declaration because this solution will prevent data loss when the XML includes non-standard-ASCII characters. For example:
-- No upper-case "N" prefix on the string literal == VARCHAR, and no XML declaration:
DECLARE @Xml2 XML = '<string>Test ?</string>';
SELECT @Xml2;
-- <string>Test ???</string>
As you can see, there is no error this time, but now there is data-loss 🙀.
You could write an extension method:
public static T[] Concat<T>(this T[] x, T[] y)
{
if (x == null) throw new ArgumentNullException("x");
if (y == null) throw new ArgumentNullException("y");
int oldLen = x.Length;
Array.Resize<T>(ref x, x.Length + y.Length);
Array.Copy(y, 0, x, oldLen, y.Length);
return x;
}
Then:
int[] x = {1,2,3}, y = {4,5};
int[] z = x.Concat(y); // {1,2,3,4,5}
To avoid exceptions with .Parse
, here are some .TryParse
alternatives.
To use only the elements that can be parsed:
string[] arr = { null, " ", " 1 ", " 002 ", "3.0" };
int i = 0;
var a = (from s in arr where int.TryParse(s, out i) select i).ToArray(); // a = { 1, 2 }
or
var a = arr.SelectMany(s => int.TryParse(s, out i) ? new[] { i } : new int[0]).ToArray();
Alternatives using 0
for the elements that can't be parsed:
int i;
var a = Array.ConvertAll(arr, s => int.TryParse(s, out i) ? i : 0); //a = { 0, 0, 1, 2, 0 }
or
var a = arr.Select((s, i) => int.TryParse(s, out i) ? i : 0).ToArray();
var a = Array.ConvertAll(arr, s => int.TryParse(s, out var i) ? i : 0);
(from i in list
select new { i.category_id, i.category_name })
.Distinct()
.OrderBy(i => i.category_name);
Had a very similar problem and also tried cloning the image which doesn't work. I found that the best solution was to create a new Bitmap object from the image that was loaded from the memory stream. That way the stream can be disposed of e.g.
using (var m = new MemoryStream())
{
var img = new Bitmap(Image.FromStream(m));
return img;
}
Hope this helps.
Using a lambda you could do this (compiles in jdk lambda):
public static void main(String ars[]) {
TransformService transformService = (inputs) -> {
int[] ints = new int[inputs.size()];
int i = 0;
for (Integer element : inputs) {
ints[ i++ ] = element;
}
return ints;
};
List<Integer> inputs = new ArrayList<Integer>(5) { {add(10); add(10);} };
int[] results = transformService.transform(inputs);
}
public interface TransformService {
int[] transform(List<Integer> inputs);
}
I tested in linux centos
Map<String, String> env = System.getenv();
for (String envName : env.keySet()) {
System.out.format("%s=%s%n", envName, env.get(envName));
}
System.out.println(env.get("USERNAME"));
If you are using java-8 there's also another way to do this.
int[] arr = list.stream().mapToInt(i -> i).toArray();
What it does is:
Stream<Integer>
from the listIntStream
by mapping each element to itself (identity function), unboxing the int
value hold by each Integer
object (done automatically since Java 5)int
by calling toArray
You could also explicitly call intValue
via a method reference, i.e:
int[] arr = list.stream().mapToInt(Integer::intValue).toArray();
It's also worth mentioning that you could get a NullPointerException
if you have any null
reference in the list. This could be easily avoided by adding a filtering condition to the stream pipeline like this:
//.filter(Objects::nonNull) also works
int[] arr = list.stream().filter(i -> i != null).mapToInt(i -> i).toArray();
Example:
List<Integer> list = Arrays.asList(1, 2, 3, 4);
int[] arr = list.stream().mapToInt(i -> i).toArray(); //[1, 2, 3, 4]
list.set(1, null); //[1, null, 3, 4]
arr = list.stream().filter(i -> i != null).mapToInt(i -> i).toArray(); //[1, 3, 4]
You say
The string is exactly what was written to the file (with the addition of a "\0" at the end, but I don't think that even does anything).
In fact, it does do something (it causes your code to throw a FormatException
:"Invalid character in a Base-64 string") because the Convert.FromBase64String
does not consider "\0" to be a valid Base64 character.
byte[] data1 = Convert.FromBase64String("AAAA\0"); // Throws exception
byte[] data2 = Convert.FromBase64String("AAAA"); // Works
Solution: Get rid of the zero termination. (Maybe call .Trim("\0")
)
Notes:
The MSDN docs for Convert.FromBase64String
say it will throw a FormatException
when
The length of s, ignoring white space characters, is not zero or a multiple of 4.
-or-
The format of s is invalid. s contains a non-base 64 character, more than two padding characters, or a non-white space character among the padding characters.
and that
The base 64 digits in ascending order from zero are the uppercase characters 'A' to 'Z', lowercase characters 'a' to 'z', numerals '0' to '9', and the symbols '+' and '/'.
Code Behind:
public class Friends
{
public string ID { get; set; }
public string Name { get; set; }
public string Image { get; set; }
}
protected void Page_Load(object sender, EventArgs e)
{
List <Friends> friendsList = new List<Friends>();
foreach (var friend in friendz)
{
friendsList.Add(
new Friends { ID = friend.id, Name = friend.name }
);
}
this.rptFriends.DataSource = friendsList;
this.rptFriends.DataBind();
}
.aspx Page
<asp:Repeater ID="rptFriends" runat="server">
<HeaderTemplate>
<table border="0" cellpadding="0" cellspacing="0">
<thead>
<tr>
<th>ID</th>
<th>Name</th>
</tr>
</thead>
<tbody>
</HeaderTemplate>
<ItemTemplate>
<tr>
<td><%# Eval("ID") %></td>
<td><%# Eval("Name") %></td>
</tr>
</ItemTemplate>
<FooterTemplate>
</tbody>
</table>
</FooterTemplate>
</asp:Repeater>
Just use:
param.AddWithValue("@Date_Of_Birth",DOB);
That will take care of all your problems.
You can try my ServiceStack JsonSerializer it's the fastest .NET JSON serializer at the moment. It supports serializing DataContract's, Any POCO Type, Interfaces, Late-bound objects including anonymous types, etc.
Basic Example
var customer = new Customer { Name="Joe Bloggs", Age=31 };
var json = customer.ToJson();
var fromJson = json.FromJson<Customer>();
Note: Only use Microsofts JavaScriptSerializer if performance is not important to you as I've had to leave it out of my benchmarks since its up to 40x-100x slower than the other JSON serializers.
My vote is string.Join
No need for lambda evaluations and temporary functions to be created, fewer function calls, less stack pushing and popping.
This may not be an option for you, but if you can use the Parallel Extension for .NET then you could use Task
s instead of raw threads and then use Task.WaitAll()
to wait for them to complete.
I would use JTidy - it is simlar to JSoup, but I don't know JSoup well. JTidy handles broken HTML and returns a w3c Document, so you can use this as a source to XSLT to extract the content you are really interested in. If you don't know XSLT, then you might as well go with JSoup, as the Document model is nicer to work with than w3c.
EDIT: A quick look on the JSoup website shows that JSoup may indeed be the better choice. It seems to support CSS selectors out the box for extracting stuff from the document. This may be a lot easier to work with than getting into XSLT.
Keep a look out for SQL Server to support the 'INSERT ALL' Statement. Oracle has it already, it looks like this (SQL Cookbook):
insert all
when loc in ('NEW YORK', 'BOSTON') THEN
into dept_east(deptno, dname, loc) values(deptno, dname, loc)
when loc in ('CHICAGO') THEN
into dept_mid(deptno, dname, loc) values(deptno, dname, loc)
else
into dept_west(deptno, dname, loc) values(deptno, dname, loc)
select deptno, dname, loc
from dept
You can achieve this by a few lines of CSS and JS.
CSS:
div.clip-context {
max-height: 95px;
word-break: break-all;
white-space: normal;
word-wrap: break-word; //Breaking unicode line for MS-Edge works with this property;
}
JS:
$(document).ready(function(){
for(let c of $("div.clip-context")){
//If each of element content exceeds 95px its css height, extract some first
//lines by specifying first length of its text content.
if($(c).innerHeight() >= 95){
//Define text length for extracting, here 170.
$(c).text($(c).text().substr(0, 170));
$(c).append(" ...");
}
}
});
HTML:
<div class="clip-context">
(Here some text)
</div>
@Skelly 's answer is correct. It won't let me add a comment (<50 rep)... but to answer your question on his answer: In the example he linked, if you add
col-xs-3
class to each of the thumbnails, like this:
class="col-md-3 col-xs-3"
then it should stay the way you want it when sized down to phone width.
All modules from package.json are installed to ./node_modules/
I couldn't find this explicitly stated but this is the package.json reference for NPM.
You can get first element via index selector:
$('div.second div:eq(0)')
Please search the site before asking questions next time: how to concatenate two dictionaries to create a new one in Python?
The easiest way to do it is to simply use your example code, but using the items() member of each dictionary. So, the code would be:
dic0 = {'dic0': 0}
dic1 = {'dic1': 1}
dic2 = dict(dic0.items() + dic1.items())
I tested this in IDLE and it works fine. However, the previous question on this topic states that this method is slow and chews up memory. There are several other ways recommended there, so please see that if memory usage is important.
How I placed a border around my UI view (main - SubscriptionAd) in Storyboard is to place it inside another UI view (background - BackgroundAd). The Background UIView has a background colour that matches the border colour i want, and the Main UIView has constraints value 2 from each side.
I will link the background view to my ViewController and then turn the border on and off by changing the background colour.
Update
Based on Manipulating the browser history, passing the empty string as second parameter of pushState
method (aka title) should be safe against future changes to the method, so it's better to use pushState
like this:
history.pushState(null, '', '/en/step2');
You can read more about that in mentioned article
Original Answer
Use history.pushState
like this:
history.pushState(null, null, '/en/step2');
Update 2 to answer Idan Dagan's comment:
Why not using
history.replaceState()
?
From MDN
history.replaceState() operates exactly like history.pushState() except that replaceState() modifies the current history entry instead of creating a new one
That means if you use replaceState
, yes the url will be changed but user can not use Browser's Back button to back to prev. state(s) anymore (because replaceState
doesn't add new entry to history) and it's not recommended and provide bad UX.
Update 3 to add window.onpopstate
So, as this answer got your attention, here is additional info about manipulating the browser history, after using pushState
, you can detect the back/forward button navigation by using window.onpopstate
like this:
window.onpopstate = function(e) {
// ...
};
As the first argument of pushState
is an object, if you passed an object
instead of null
, you can access that object in onpopstate
which is very handy, here is how:
window.onpopstate = function(e) {
if(e.state) {
console.log(e.state);
}
};
Update 4 to add Reading the current state:
When your page loads, it might have a non-null state object, you can read the state of the current history entry without waiting for a popstate
event using the history.state
property like this:
console.log(history.state);
Bonus: Use following to check history.pushState
support:
if (history.pushState) {
// \o/
}
Probably svn import
would be the best option around. Check out Getting Data into Your Repository (in Version Control with Subversion, For Subversion).
The svn import command is a quick way to copy an unversioned tree of files into a repository, creating intermediate directories as necessary. svn import doesn't require a working copy, and your files are immediately committed to the repository. You typically use this when you have an existing tree of files that you want to begin tracking in your Subversion repository. For example:
$ svn import /path/to/mytree \ http://svn.example.com/svn/repo/some/project \ -m "Initial import" Adding mytree/foo.c Adding mytree/bar.c Adding mytree/subdir Adding mytree/subdir/quux.h Committed revision 1. $
The previous example copied the contents of the local directory mytree into the directory some/project in the repository. Note that you didn't have to create that new directory first—svn import does that for you. Immediately after the commit, you can see your data in the repository:
$ svn list http://svn.example.com/svn/repo/some/project bar.c foo.c subdir/ $
Note that after the import is finished, the original local directory is not converted into a working copy. To begin working on that data in a versioned fashion, you still need to create a fresh working copy of that tree.
Note: if you are on the same machine as the Subversion repository you can use the file://
specifier with a path rather than the https://
with a URL specifier.
I just had this issue as well and my normal branches start with pb-3.1-12345/namebranch
but I accidental capitalized the first 2 letters PB-3.1/12345/namebranch
. After renaming the branch to use lower case letters I could create the branch.
The id of the input seems is not WallSearch
. Maybe you're confusing that name
and id
. They are two different properties. name
is used to define the name by which the value is posted, while id
is the unique identification of the element inside the DOM.
Other possibility is that you have two elements with the same id. The browser will pick any of these (probably the last, maybe the first) and return an element that doesn't support the value
property.
I cleaned up cletus' answer:
valueOf(String)
with the BigInteger(String)
which is both more flexible and faster.import com.google.common.base.Splitter;
import java.math.BigDecimal;
import java.math.BigInteger;
import java.math.RoundingMode;
import java.util.List;
import java.util.Objects;
import org.bitbucket.cowwoc.preconditions.Preconditions;
/**
* A rational fraction, represented by {@code numerator / denominator}.
* <p>
* This implementation is based on <a
* href="https://stackoverflow.com/a/474577/14731">https://stackoverflow.com/a/474577/14731</a>
* <p>
* @author Gili Tzabari
*/
public final class BigRational extends Number implements Comparable<BigRational>
{
private static final long serialVersionUID = 0L;
public static final BigRational ZERO = new BigRational(BigInteger.ZERO, BigInteger.ONE);
public static final BigRational ONE = new BigRational(BigInteger.ONE, BigInteger.ONE);
/**
* Ensures the fraction the denominator is positive and optionally divides the numerator and
* denominator by the greatest common factor.
* <p>
* @param numerator a numerator
* @param denominator a denominator
* @param checkGcd true if the numerator and denominator should be divided by the greatest
* common factor
* @return the canonical representation of the rational fraction
*/
private static BigRational canonical(BigInteger numerator, BigInteger denominator,
boolean checkGcd)
{
assert (numerator != null);
assert (denominator != null);
if (denominator.signum() == 0)
throw new IllegalArgumentException("denominator is zero");
if (numerator.signum() == 0)
return ZERO;
BigInteger newNumerator = numerator;
BigInteger newDenominator = denominator;
if (newDenominator.signum() < 0)
{
newNumerator = newNumerator.negate();
newDenominator = newDenominator.negate();
}
if (checkGcd)
{
BigInteger gcd = newNumerator.gcd(newDenominator);
if (!gcd.equals(BigInteger.ONE))
{
newNumerator = newNumerator.divide(gcd);
newDenominator = newDenominator.divide(gcd);
}
}
return new BigRational(newNumerator, newDenominator);
}
/**
* @param numerator a numerator
* @param denominator a denominator
* @return a BigRational having value {@code numerator / denominator}
* @throws NullPointerException if numerator or denominator are null
*/
public static BigRational valueOf(BigInteger numerator, BigInteger denominator)
{
Preconditions.requireThat(numerator, "numerator").isNotNull();
Preconditions.requireThat(denominator, "denominator").isNotNull();
return canonical(numerator, denominator, true);
}
/**
* @param numerator a numerator
* @param denominator a denominator
* @return a BigRational having value {@code numerator / denominator}
*/
public static BigRational valueOf(long numerator, long denominator)
{
BigInteger bigNumerator = BigInteger.valueOf(numerator);
BigInteger bigDenominator = BigInteger.valueOf(denominator);
return canonical(bigNumerator, bigDenominator, true);
}
/**
* @param value the parameter value
* @param name the parameter name
* @return the BigInteger representation of the parameter
* @throws NumberFormatException if value is not a valid representation of BigInteger
*/
private static BigInteger requireBigInteger(String value, String name)
throws NumberFormatException
{
try
{
return new BigInteger(value);
}
catch (NumberFormatException e)
{
throw (NumberFormatException) new NumberFormatException("Invalid " + name + ": " + value).
initCause(e);
}
}
/**
* @param numerator a numerator
* @param denominator a denominator
* @return a BigRational having value {@code numerator / denominator}
* @throws NullPointerException if numerator or denominator are null
* @throws IllegalArgumentException if numerator or denominator are empty
* @throws NumberFormatException if numerator or denominator are not a valid representation of
* BigDecimal
*/
public static BigRational valueOf(String numerator, String denominator)
throws NullPointerException, IllegalArgumentException, NumberFormatException
{
Preconditions.requireThat(numerator, "numerator").isNotNull().isNotEmpty();
Preconditions.requireThat(denominator, "denominator").isNotNull().isNotEmpty();
BigInteger bigNumerator = requireBigInteger(numerator, "numerator");
BigInteger bigDenominator = requireBigInteger(denominator, "denominator");
return canonical(bigNumerator, bigDenominator, true);
}
/**
* @param value a string representation of a rational fraction (e.g. "12.34e5" or "3/4")
* @return a BigRational representation of the String
* @throws NullPointerException if value is null
* @throws IllegalArgumentException if value is empty
* @throws NumberFormatException if numerator or denominator are not a valid representation of
* BigDecimal
*/
public static BigRational valueOf(String value)
throws NullPointerException, IllegalArgumentException, NumberFormatException
{
Preconditions.requireThat(value, "value").isNotNull().isNotEmpty();
List<String> fractionParts = Splitter.on('/').splitToList(value);
if (fractionParts.size() == 1)
return valueOfRational(value);
if (fractionParts.size() == 2)
return BigRational.valueOf(fractionParts.get(0), fractionParts.get(1));
throw new IllegalArgumentException("Too many slashes: " + value);
}
/**
* @param value a string representation of a rational fraction (e.g. "12.34e5")
* @return a BigRational representation of the String
* @throws NullPointerException if value is null
* @throws IllegalArgumentException if value is empty
* @throws NumberFormatException if numerator or denominator are not a valid representation of
* BigDecimal
*/
private static BigRational valueOfRational(String value)
throws NullPointerException, IllegalArgumentException, NumberFormatException
{
Preconditions.requireThat(value, "value").isNotNull().isNotEmpty();
BigDecimal bigDecimal = new BigDecimal(value);
int scale = bigDecimal.scale();
BigInteger numerator = bigDecimal.unscaledValue();
BigInteger denominator;
if (scale > 0)
denominator = BigInteger.TEN.pow(scale);
else
{
numerator = numerator.multiply(BigInteger.TEN.pow(-scale));
denominator = BigInteger.ONE;
}
return canonical(numerator, denominator, true);
}
private final BigInteger numerator;
private final BigInteger denominator;
/**
* @param numerator the numerator
* @param denominator the denominator
* @throws NullPointerException if numerator or denominator are null
*/
private BigRational(BigInteger numerator, BigInteger denominator)
{
Preconditions.requireThat(numerator, "numerator").isNotNull();
Preconditions.requireThat(denominator, "denominator").isNotNull();
this.numerator = numerator;
this.denominator = denominator;
}
/**
* @return the numerator
*/
public BigInteger getNumerator()
{
return numerator;
}
/**
* @return the denominator
*/
public BigInteger getDenominator()
{
return denominator;
}
@Override
@SuppressWarnings("AccessingNonPublicFieldOfAnotherObject")
public int compareTo(BigRational other)
{
Preconditions.requireThat(other, "other").isNotNull();
// canonical() ensures denominator is positive
if (numerator.signum() != other.numerator.signum())
return numerator.signum() - other.numerator.signum();
// Set the denominator to a common multiple before comparing the numerators
BigInteger first = numerator.multiply(other.denominator);
BigInteger second = other.numerator.multiply(denominator);
return first.compareTo(second);
}
/**
* @param other another rational fraction
* @return the result of adding this object to {@code other}
* @throws NullPointerException if other is null
*/
@SuppressWarnings("AccessingNonPublicFieldOfAnotherObject")
public BigRational add(BigRational other)
{
Preconditions.requireThat(other, "other").isNotNull();
if (other.numerator.signum() == 0)
return this;
if (numerator.signum() == 0)
return other;
if (denominator.equals(other.denominator))
return new BigRational(numerator.add(other.numerator), denominator);
return canonical(numerator.multiply(other.denominator).
add(other.numerator.multiply(denominator)),
denominator.multiply(other.denominator), true);
}
/**
* @param other another rational fraction
* @return the result of subtracting {@code other} from this object
* @throws NullPointerException if other is null
*/
@SuppressWarnings("AccessingNonPublicFieldOfAnotherObject")
public BigRational subtract(BigRational other)
{
return add(other.negate());
}
/**
* @param other another rational fraction
* @return the result of multiplying this object by {@code other}
* @throws NullPointerException if other is null
*/
@SuppressWarnings("AccessingNonPublicFieldOfAnotherObject")
public BigRational multiply(BigRational other)
{
Preconditions.requireThat(other, "other").isNotNull();
if (numerator.signum() == 0 || other.numerator.signum() == 0)
return ZERO;
if (numerator.equals(other.denominator))
return canonical(other.numerator, denominator, true);
if (other.numerator.equals(denominator))
return canonical(numerator, other.denominator, true);
if (numerator.negate().equals(other.denominator))
return canonical(other.numerator.negate(), denominator, true);
if (other.numerator.negate().equals(denominator))
return canonical(numerator.negate(), other.denominator, true);
return canonical(numerator.multiply(other.numerator), denominator.multiply(other.denominator),
true);
}
/**
* @param other another rational fraction
* @return the result of dividing this object by {@code other}
* @throws NullPointerException if other is null
*/
public BigRational divide(BigRational other)
{
return multiply(other.invert());
}
/**
* @return true if the object is a whole number
*/
public boolean isInteger()
{
return numerator.signum() == 0 || denominator.equals(BigInteger.ONE);
}
/**
* Returns a BigRational whose value is (-this).
* <p>
* @return -this
*/
public BigRational negate()
{
return new BigRational(numerator.negate(), denominator);
}
/**
* @return a rational fraction with the numerator and denominator swapped
*/
public BigRational invert()
{
return canonical(denominator, numerator, false);
}
/**
* @return the absolute value of this {@code BigRational}
*/
public BigRational abs()
{
if (numerator.signum() < 0)
return negate();
return this;
}
/**
* @param exponent exponent to which both numerator and denominator is to be raised.
* @return a BigRational whose value is (this<sup>exponent</sup>).
*/
public BigRational pow(int exponent)
{
return canonical(numerator.pow(exponent), denominator.pow(exponent), true);
}
/**
* @param other another rational fraction
* @return the minimum of this object and the other fraction
*/
public BigRational min(BigRational other)
{
if (compareTo(other) <= 0)
return this;
return other;
}
/**
* @param other another rational fraction
* @return the maximum of this object and the other fraction
*/
public BigRational max(BigRational other)
{
if (compareTo(other) >= 0)
return this;
return other;
}
/**
* @param scale scale of the BigDecimal quotient to be returned
* @param roundingMode the rounding mode to apply
* @return a BigDecimal representation of this object
* @throws NullPointerException if roundingMode is null
*/
public BigDecimal toBigDecimal(int scale, RoundingMode roundingMode)
{
Preconditions.requireThat(roundingMode, "roundingMode").isNotNull();
if (isInteger())
return new BigDecimal(numerator);
return new BigDecimal(numerator).divide(new BigDecimal(denominator), scale, roundingMode);
}
@Override
public int intValue()
{
return (int) longValue();
}
@Override
public long longValue()
{
if (isInteger())
return numerator.longValue();
return numerator.divide(denominator).longValue();
}
@Override
public float floatValue()
{
return (float) doubleValue();
}
@Override
public double doubleValue()
{
if (isInteger())
return numerator.doubleValue();
return numerator.doubleValue() / denominator.doubleValue();
}
@Override
@SuppressWarnings("AccessingNonPublicFieldOfAnotherObject")
public boolean equals(Object o)
{
if (this == o)
return true;
if (!(o instanceof BigRational))
return false;
BigRational other = (BigRational) o;
return numerator.equals(other.denominator) && Objects.equals(denominator, other.denominator);
}
@Override
public int hashCode()
{
return Objects.hash(numerator, denominator);
}
/**
* Returns the String representation: {@code numerator / denominator}.
*/
@Override
public String toString()
{
if (isInteger())
return String.format("%,d", numerator);
return String.format("%,d / %,d", numerator, denominator);
}
}
It has also happened to me, in my case it was due to the GDB launcher, which I needed to turn to "Legacy Create Process Launcher". To do so,
either change the default launchers to the "Legacy Create Process Launcher", in Windows>Preferences>Run/Debug>Launching>Default Launchers.
or choose this launcher in the debug configuration of your application (Run>Debug configurations>choose your debug configuration). Under the "main" tab at the bottom, click on "Select other...", check the box "Use configuration specific settings" and choose "Legacy Create Process Launcher".
if ($elem.parents('.left').length) {
}
Integer.parseInt(hex,16);
System.out.print(Integer.toBinaryString(hex));
Parse hex(String) to integer with base 16 then convert it to Binary String using toBinaryString(int) method
example
int num = (Integer.parseInt("A2B", 16));
System.out.print(Integer.toBinaryString(num));
Will Print
101000101011
Max Hex vakue Handled by int is FFFFFFF
i.e. if FFFFFFF0 is passed ti will give error
This is what is did that solved the same problem. I solved it by creating a function that returns the query result thus:
function getUsers(){
$query = $this->db->get('users');
return $query->result();
}
//The above code can go in the user_model or whatever your model is.
This allows me to use one function for the result and number of returned rows.
Use this code below in your contoller where you need the count as well as the result array().
//This gives you the user count using the count function which returns and integer of the exact rows returned from the query.
$this->data['user_count'] = count($this->user_model->getUsers());
//This gives you the returned result array.
$this->data['users'] = $this->user_model->getUsers();
I hope this helps.
With GNU Parallel you can do:
cat a.txt | parallel 'command1 {}; command2 {}; ...; '
Watch the intro videos to learn more: https://www.youtube.com/playlist?list=PL284C9FF2488BC6D1
For security reasons it is recommended you use your package manager to install. But if you cannot do that then you can use this 10 seconds installation.
The 10 seconds installation will try to do a full installation; if that fails, a personal installation; if that fails, a minimal installation.
$ (wget -O - pi.dk/3 || lynx -source pi.dk/3 || curl pi.dk/3/ || \
fetch -o - http://pi.dk/3 ) > install.sh
$ sha1sum install.sh | grep 67bd7bc7dc20aff99eb8f1266574dadb
12345678 67bd7bc7 dc20aff9 9eb8f126 6574dadb
$ md5sum install.sh | grep b7a15cdbb07fb6e11b0338577bc1780f
b7a15cdb b07fb6e1 1b033857 7bc1780f
$ sha512sum install.sh | grep 186000b62b66969d7506ca4f885e0c80e02a22444
6f25960b d4b90cf6 ba5b76de c1acdf39 f3d24249 72930394 a4164351 93a7668d
21ff9839 6f920be5 186000b6 2b66969d 7506ca4f 885e0c80 e02a2244 40e8a43f
$ bash install.sh
No, you cannot set the border height.
Consider to use SEQUENCE instead of IDENTITY.
IN sql server 2014 (I don't know about lower versions) you can do this simply, using sequence.
CREATE SEQUENCE sequence_name START WITH here_higher_number_than_max_existed_value_in_column INCREMENT BY 1;
ALTER TABLE table_name ADD CONSTRAINT constraint_name DEFAULT NEXT VALUE FOR sequence_name FOR column_name
From here: Sequence as default value for a column
This flag worked for me at v30.0.1599.101 m
The warning "You are using an unsupported command-line flag" can be ignored. The flag still works (as of Chrome v86).
create resource file in drawable
<?xml version="1.0" encoding="utf-8"?>
<shape xmlns:android="http://schemas.android.com/apk/res/android"
android:shape="rectangle">
<solid android:color="#3b5998" />
<cornersandroid:radius="15dp"/>
Check Enable Live Templates and leave the cursor at the position desired and click Apply then OK
I fixed a similar error on my project by changing the Build Settings > Architectures for ALL of my targets.
The problem: When I upgraded from Xcode 4.4 to Xcode 4.5, my project still compiled fine on the simulator but did not compile on devices. On devices it threw the error "symbol(s) not found for architecture armv7s," along with the misleading "Apple Mach-O Linker Error" and "clang: error: linker command failed with exit code 1 (use -v to see invocation)."
The cause (in my case): My project had multiple targets, and even though the Build Settings > Architectures for the main target was set to include armv7s architecture, the main target depended on another target (listed under Build Phases > Dependencies), and I hadn't thought to reset the Build Settings > Architectures for that other target, and I had to change that to include armv7s. I suppose the simulator and device run on different architectures, and that's why the simulator was OK while the device wasn't.
Following code might be useful if someone is using React and has a different component of Marker and want to remove marker from map.
export default function useGoogleMapMarker(props) {
const [marker, setMarker] = useState();
useEffect(() => {
// ...code
const marker = new maps.Marker({ position, map, title, icon });
// ...code
setMarker(marker);
return () => marker.setMap(null); // to remove markers when unmounts
}, []);
return marker;
}
This is a trick,
function OpenInNewTab(url) {
var win = window.open(url, '_blank');
win.focus();
}
In most cases, this should happen directly in the onclick handler for the link to prevent pop-up blockers, and the default "new window" behavior. You could do it this way, or by adding an event listener to your DOM object.
<div onclick="OpenInNewTab();">Something To Click On</div>
As per official documentation link shared by Andre Kirpitch, Oracle 10g gives a maximum size of 4000 bytes or characters for varchar2. If you are using a higher version of oracle (for example Oracle 12c), you can get a maximum size upto 32767 bytes or characters for varchar2. To utilize the extended datatype feature of oracle 12, you need to start oracle in upgrade mode. Follow the below steps in command prompt:
1) Login as sysdba (sqlplus / as sysdba)
2) SHUTDOWN IMMEDIATE;
3) STARTUP UPGRADE;
4) ALTER SYSTEM SET max_string_size=extended;
5) Oracle\product\12.1.0.2\rdbms\admin\utl32k.sql
6) SHUTDOWN IMMEDIATE;
7) STARTUP;
Have you tried any of these?
onMouseDown onMouseEnter onMouseLeave
onMouseMove onMouseOut onMouseOver onMouseUp
it also mentions the following:
React normalizes events so that they have consistent properties across different browsers.
The event handlers below are triggered by an event in the bubbling phase. To register an event handler for the capture phase, append Capture to the event name; for example, instead of using onClick, you would use onClickCapture to handle the click event in the capture phase.
I used this method:
$(document).mousemove(function(e) {
window.x = e.pageX;
window.y = e.pageY;
});
function show_popup(str) {
$("#popup_content").html(str);
$("#popup").fadeIn("fast");
$("#popup").css("top", y);
$("#popup").css("left", x);
}
In this way I'll always have the distance from the top saved in y and the distance from the left saved in x.
The <h:outputLink>
renders a fullworthy HTML <a>
element with the proper URL in the href
attribute which fires a bookmarkable GET request. It cannot directly invoke a managed bean action method.
<h:outputLink value="destination.xhtml">link text</h:outputLink>
The <h:commandLink>
renders a HTML <a>
element with an onclick
script which submits a (hidden) POST form and can invoke a managed bean action method. It's also required to be placed inside a <h:form>
.
<h:form>
<h:commandLink value="link text" action="destination" />
</h:form>
The ?faces-redirect=true
parameter on the <h:commandLink>
, which triggers a redirect after the POST (as per the Post-Redirect-Get pattern), only improves bookmarkability of the target page when the link is actually clicked (the URL won't be "one behind" anymore), but it doesn't change the href
of the <a>
element to be a fullworthy URL. It still remains #
.
<h:form>
<h:commandLink value="link text" action="destination?faces-redirect=true" />
</h:form>
Since JSF 2.0, there's also the <h:link>
which can take a view ID (a navigation case outcome) instead of an URL. It will generate a HTML <a>
element as well with the proper URL in href
.
<h:link value="link text" outcome="destination" />
So, if it's for pure and bookmarkable page-to-page navigation like the SO username link, then use <h:outputLink>
or <h:link>
. That's also better for SEO since bots usually doesn't cipher POST forms nor JS code. Also, UX will be improved as the pages are now bookmarkable and the URL is not "one behind" anymore.
When necessary, you can do the preprocessing job in the constructor or @PostConstruct
of a @RequestScoped
or @ViewScoped
@ManagedBean
which is attached to the destination page in question. You can make use of @ManagedProperty
or <f:viewParam>
to set GET parameters as bean properties.
Marco's answer above is correct, but just to expand on the question of "under what context"...
frame - this is the property you most often use for normal iPhone applications. most controls will be laid out relative to the "containing" control so the frame.origin will directly correspond to where the control needs to display, and frame.size will determine how big to make the control.
center - this is the property you will likely focus on for sprite based games and animations where movement or scaling may occur. By default animation and rotation will be based on the center of the UIView. It rarely makes sense to try and manage such objects by the frame property.
bounds - this property is not a positioning property, but defines the drawable area of the UIView "relative" to the frame. By default this property is usually (0, 0, width, height). Changing this property will allow you to draw outside of the frame or restrict drawing to a smaller area within the frame. A good discussion of this can be found at the link below. It is uncommon for this property to be manipulated unless there is specific need to adjust the drawing region. The only exception is that most programs will use the [[UIScreen mainScreen] bounds]
on startup to determine the visible area for the application and setup their initial UIView's frame accordingly.
Why is there an frame rectangle and an bounds rectangle in an UIView?
Hopefully this helps clarify the circumstances where each property might get used.
3 characters before and 4 characters after
$> echo "some123_string_and_another" | grep -o -P '.{0,3}string.{0,4}'
23_string_and
After exiting eclipse I moved .eclipse (found in the user's home directory) to .eclipse.old (just in case I may have had to undo). The error does not show up any more and my projects are working fine after restarting eclipse.
Caution: I have a simple setup and this may not be the best for environments with advanced settings.
I am posting this as a separate answer as previously listed methods did not work for me.
new_list = [word_in_list + end_string for word_in_list in old_list]
Using names such as "list" for your variable names is bad since it will overwrite/override the builtins.
You are right. This is a badly documented issue. But you can change the font size parameter (by opposition to font scale) directly after building the plot. Check the following example:
import seaborn as sns
tips = sns.load_dataset("tips")
b = sns.boxplot(x=tips["total_bill"])
b.axes.set_title("Title",fontsize=50)
b.set_xlabel("X Label",fontsize=30)
b.set_ylabel("Y Label",fontsize=20)
b.tick_params(labelsize=5)
sns.plt.show()
, which results in this:
To make it consistent in between plots I think you just need to make sure the DPI is the same. By the way it' also a possibility to customize a bit the rc dictionaries since "font.size" parameter exists but I'm not too sure how to do that.
NOTE: And also I don't really understand why they changed the name of the font size variables for axis labels and ticks. Seems a bit un-intuitive.
If you are sending this back to asp.net and need the data in request.form[] then you'll need to set the content type to "application/x-www-form-urlencoded; charset=utf-8"
Original post here
Secondly get rid of the Datatype, if your not expecting a return the POST will wait for about 4 minutes before failing. See here
Is Java smart enough to skip checking bool2 and bool2 if bool1 was evaluated to false?
Its not a matter of being smart, its a requirement specified in the language. Otherwise you couldn't write expressions like.
if(s != null && s.length() > 0)
or
if(s == null || s.length() == 0)
BTW if you use &
and |
it will always evaluate both sides of the expression.
Here is an example to play with Inline SVG for a list bullet (2020 Browsers)
list-style-image: url("data:image/svg+xml,
<svg width='50' height='50'
xmlns='http://www.w3.org/2000/svg'
viewBox='0 0 72 72'>
<rect width='100%' height='100%' fill='pink'/>
<path d='M70 42a3 3 90 0 1 3 3a3 3 90 0 1-3 3h-12l-3 3l-6 15l-3
l-6-3v-21v-3l15-15a3 3 90 0 1 0 0c3 0 3 0 3 3l-6 12h30
m-54 24v-24h9v24z'/></svg>")
width
& height
to set the sizeM70 42
to position the handrect
li{
font-size:2em;
list-style-image: url("data:image/svg+xml,<svg width='3em' height='3em' xmlns='http://www.w3.org/2000/svg' viewBox='0 0 72 72'><rect width='100%' height='100%' fill='pink'/><path d='M70 42a3 3 90 0 1 3 3a3 3 90 0 1-3 3h-12l-3 3l-6 15l-3 3h-12l-6-3v-21v-3l15-15a3 3 90 0 1 0 0c3 0 3 0 3 3l-6 12h30m-54 24v-24h9v24z'/></svg>");
}
span{
display:inline-block;
vertical-align:top;
margin-top:-10px;
margin-left:-5px;
}
_x000D_
<ul>
<li><span>Apples</span></li>
<li><span>Bananas</span></li>
<li>Oranges</li>
</ul>
_x000D_
If this is a one-time operation, you could just remove all untracked files from the working directory before doing the pull. Read How to remove local (untracked) files from the current Git working tree? for information on how to remove all untracked files.
Be sure to not accidentally remove untracked file that you still need ;)
I created a VB script and run it either from command line or from a Java process. I also tried to catch errors when creating the shortcut so I can have a better error handling.
Set oWS = WScript.CreateObject("WScript.Shell")
shortcutLocation = Wscript.Arguments(0)
'error handle shortcut creation
On Error Resume Next
Set oLink = oWS.CreateShortcut(shortcutLocation)
If Err Then WScript.Quit Err.Number
'error handle setting shortcut target
On Error Resume Next
oLink.TargetPath = Wscript.Arguments(1)
If Err Then WScript.Quit Err.Number
'error handle setting start in property
On Error Resume Next
oLink.WorkingDirectory = Wscript.Arguments(2)
If Err Then WScript.Quit Err.Number
'error handle saving shortcut
On Error Resume Next
oLink.Save
If Err Then WScript.Quit Err.Number
I run the script with the following commmand:
cscript /b script.vbs shortcutFuturePath targetPath startInProperty
It is possible to have it working even without setting the 'Start in' property in some cases.
You can use "ComboBoxItem.PreviewMouseDown" event. So each time when mouse is down on some item this event will be fired.
To add this event in XAML use "ComboBox.ItemContainerStyle" like in next example:
<ComboBox x:Name="MyBox"
ItemsSource="{Binding MyList}"
SelectedValue="{Binding MyItem, Mode=OneWayToSource}" >
<ComboBox.ItemContainerStyle>
<Style>
<EventSetter Event="ComboBoxItem.PreviewMouseDown"
Handler="cmbItem_PreviewMouseDown"/>
</Style>
</ComboBox.ItemContainerStyle>
</ComboBox>
and handle it as usual
void cmbItem_PreviewMouseDown(object sender, MouseButtonEventArgs e)
{
//...do your item selection code here...
}
Thanks to MSDN
First, you gotta put your font as either a .otf or .ttf somewhere on your server.
Then use CSS to declare the new font family like this:
@font-face {
font-family: MyFont;
src: url('pathway/myfont.otf');
}
If you link your document to the CSS file that you declared your font family in, you can use that font just like any other font.
Try like this
String sql = "SELECT t FROM table t";
Query query = em.createQuery(sql);
query.setFirstResult(firstPosition);
query.setMaxResults(numberOfRecords);
List result = query.getResultList();
It should work
UPDATE*
You can also try like this
query.setMaxResults(1).getResultList();
import UIKit
// MARK: - IdentifiableCell protocol will generate cell identifire based on the class name
protocol Identifiable: class {}
extension Identifiable { static var identifier: String { return "\(self)"} }
// MARK: - Functions which will use a cell class (conforming Identifiable protocol) to `dequeueReusableCell`
extension UITableView {
typealias IdentifiableCell = UITableViewCell & Identifiable
func register<T: IdentifiableCell>(class: T.Type) { register(T.self, forCellReuseIdentifier: T.identifier) }
func register(classes: [Identifiable.Type]) { classes.forEach { register($0.self, forCellReuseIdentifier: $0.identifier) } }
func dequeueReusableCell<T: IdentifiableCell>(aClass: T.Type, initital closure: ((T) -> Void)?) -> UITableViewCell {
guard let cell = dequeueReusableCell(withIdentifier: T.identifier) as? T else { return UITableViewCell() }
closure?(cell)
return cell
}
func dequeueReusableCell<T: IdentifiableCell>(aClass: T.Type, for indexPath: IndexPath, initital closure: ((T) -> Void)?) -> UITableViewCell {
guard let cell = dequeueReusableCell(withIdentifier: T.identifier, for: indexPath) as? T else { return UITableViewCell() }
closure?(cell)
return cell
}
}
extension Array where Element == UITableViewCell.Type {
var onlyIdentifiables: [Identifiable.Type] { return compactMap { $0 as? Identifiable.Type } }
}
// Define cells classes
class TableViewCell1: UITableViewCell, Identifiable { /*....*/ }
class TableViewCell2: TableViewCell1 { /*....*/ }
// .....
// Register cells
tableView.register(classes: [TableViewCell1.self, TableViewCell2.self]. onlyIdentifiables)
// Create/Reuse cells
func tableView(_ tableView: UITableView, cellForRowAt indexPath: IndexPath) -> UITableViewCell {
if (indexPath.row % 2) == 0 {
return tableView.dequeueReusableCell(aClass: TableViewCell1.self, for: indexPath) { cell in
// ....
}
} else {
return tableView.dequeueReusableCell(aClass: TableViewCell2.self, for: indexPath) { cell in
// ...
}
}
}
Do not forget to add the solution code here
import UIKit
class ViewController: UIViewController {
private weak var tableView: UITableView?
override func viewDidLoad() {
super.viewDidLoad()
setupTableView()
}
}
// MARK: - Setup(init) subviews
extension ViewController {
private func setupTableView() {
let tableView = UITableView()
view.addSubview(tableView)
self.tableView = tableView
tableView.translatesAutoresizingMaskIntoConstraints = false
tableView.topAnchor.constraint(equalTo: view.topAnchor).isActive = true
tableView.leftAnchor.constraint(equalTo: view.leftAnchor).isActive = true
tableView.rightAnchor.constraint(equalTo: view.rightAnchor).isActive = true
tableView.bottomAnchor.constraint(equalTo: view.bottomAnchor).isActive = true
tableView.register(classes: [TableViewCell1.self, TableViewCell2.self, TableViewCell3.self].onlyIdentifiables)
tableView.dataSource = self
}
}
// MARK: - UITableViewDataSource
extension ViewController: UITableViewDataSource {
func numberOfSections(in tableView: UITableView) -> Int { return 1 }
func tableView(_ tableView: UITableView, numberOfRowsInSection section: Int) -> Int { return 20 }
func tableView(_ tableView: UITableView, cellForRowAt indexPath: IndexPath) -> UITableViewCell {
switch (indexPath.row % 3) {
case 0:
return tableView.dequeueReusableCell(aClass: TableViewCell1.self, for: indexPath) { cell in
cell.textLabel?.text = "\(cell.classForCoder)"
}
case 1:
return tableView.dequeueReusableCell(aClass: TableViewCell2.self, for: indexPath) { cell in
cell.textLabel?.text = "\(cell.classForCoder)"
}
default:
return tableView.dequeueReusableCell(aClass: TableViewCell3.self, for: indexPath) { cell in
cell.textLabel?.text = "\(cell.classForCoder)"
}
}
}
}
That's a loop that says, okay, for every time that i
is smaller than 8, I'm going to do whatever is in the code block. Whenever i
reaches 8, I'll stop. After each iteration of the loop, it increments i
by 1 (i++
), so that the loop will eventually stop when it meets the i < 8
(i
becomes 8, so no longer is smaller than) condition.
For example, this:
for (int i = 0; i < 8; i++)
{
Console.WriteLine(i);
}
Will output: 01234567
See how the code was executed 8 times?
In terms of arrays, this can be helpful when you don't know the size of the array, but you want to operate on every item of it. You can do:
Disclaimer: This following code will vary dependent upon language, but the principle remains the same
Array yourArray;
for (int i = 0; i < yourArray.Count; i++)
{
Console.WriteLine(yourArray[i]);
}
The difference here is the number of execution times is entirely dependent on the size of the array, so it's dynamic.
<select name="foo" id="foo">
<option value="1">a</option>
<option value="2">b</option>
<option value="3">c</option>
</select>
<input type="button" id="button" value="Button" />
});
<script> ("#foo").val() </script>
which returns 1 if you have selected a and so on..
I will add some short example from me.
The DTO class:
public class SearchDTO {
private Long id[];
public Long[] getId() {
return id;
}
public void setId(Long[] id) {
this.id = id;
}
// reflection toString from apache commons
@Override
public String toString() {
return ReflectionToStringBuilder.toString(this, ToStringStyle.SHORT_PREFIX_STYLE);
}
}
Request mapping inside controller class:
@RequestMapping(value="/handle", method=RequestMethod.GET)
@ResponseBody
public String handleRequest(SearchDTO search) {
LOG.info("criteria: {}", search);
return "OK";
}
Query:
http://localhost:8080/app/handle?id=353,234
Result:
[http-apr-8080-exec-7] INFO c.g.g.r.f.w.ExampleController.handleRequest:59 - criteria: SearchDTO[id={353,234}]
I hope it helps :)
UPDATE / KOTLIN
Because currently I'm working a lot of with Kotlin if someone wants to define similar DTO the class in Kotlin should have the following form:
class SearchDTO {
var id: Array<Long>? = arrayOf()
override fun toString(): String {
// to string implementation
}
}
With the data
class like this one:
data class SearchDTO(var id: Array<Long> = arrayOf())
the Spring (tested in Boot) returns the following error for request mentioned in answer:
"Failed to convert value of type 'java.lang.String[]' to required type 'java.lang.Long[]'; nested exception is java.lang.NumberFormatException: For input string: \"353,234\""
The data class will work only for the following request params form:
http://localhost:8080/handle?id=353&id=234
Be aware of this!
We follow a.b.c approach like:
increament 'a' if there is some major changes happened in application. Like we upgrade .NET 1.1 application to .NET 3.5
increament 'b' if there is some minor changes like any new CR or Enhancement is implemented.
increament 'c' if there is some defects fixes in the code.
I also have same problem and in my case I injected reducer properly but still I couldn't type in field. It turns out if you are using immutable
you have to use redux-form/immutable
.
import {reducer as formReducer} from 'redux-form/immutable';
const reducer = combineReducers{
form: formReducer
}
import {Field, reduxForm} from 'redux-form/immutable';
/* your component */
Notice that your state should be like state->form
otherwise you have to explicitly config the library also the name for state should be form
.
see this issue
It is still possible, with high performance, by doing the following:
//
public List<R> GetAllItems<R>() where R : IBaseRO, new() {
var list = new List<R>();
using ( var wl = new ReaderLock<T>( this ) ) {
foreach ( var bo in this.items ) {
T t = bo.Value.Data as T;
R r = new R();
r.Initialize( t );
list.Add( r );
}
}
return list;
}
and
//
///<summary>Base class for read-only objects</summary>
public partial interface IBaseRO {
void Initialize( IDTO dto );
void Initialize( object value );
}
The relevant classes then have to derive from this interface and initialize accordingly. Please note, that in my case, this code is part of a surrounding class, which already has <T> as generic parameter. R, in my case, also is a read-only class. IMO, the public availability of Initialize() functions has no negative effect on the immutability. The user of this class could put another object in, but this would not modify the underlying collection.
While sizeof
works for this specific type of string:
char str[] = "content";
int charcount = sizeof str - 1; // -1 to exclude terminating '\0'
It does not work if str
is pointer (sizeof
returns size of pointer, usually 4 or 8) or array with specified length (sizeof
will return the byte count matching specified length, which for char type are same).
Just use strlen()
.
Keep in mind that while transferring files internally on a machine i.e not network transfer, using the -z flag can have a massive difference in the time taken for the transfer.
Transfer within same machine
Case 1: With -z flag:
TAR took: 9.48345208168
Encryption took: 2.79352903366
CP took = 5.07273387909
Rsync took = 30.5113282204
Case 2: Without the -z flag:
TAR took: 10.7535531521
Encryption took: 3.0386879921
CP took = 4.85565590858
Rsync took = 4.94515299797
If you have tried brew install maven
and were greeted with missing gcc compiler and some other dependencies, an easier approach is to install sdkman
and then run
sdk install maven
(or refer to the latest documentation for the right command)
sdkman is probably over-qualified for the job, but if you deal with multiple versions of SDKs, it's a pretty nice tool to have in general.
Credits to Ammar for the excellent tip
You'll want to use...
alert(parseInt($this.parents("div:.item-form").css("marginTop").replace('px', '')));
alert(parseInt($this.parents("div:.item-form").css("marginRight").replace('px', '')));
alert(parseInt($this.parents("div:.item-form").css("marginBottom").replace('px', '')));
alert(parseInt($this.parents("div:.item-form").css("marginLeft").replace('px', '')));
In Angular 2, change detection is automatic... $scope.$watch()
and $scope.$digest()
R.I.P.
Unfortunately, the Change Detection section of the dev guide is not written yet (there is a placeholder near the bottom of the Architecture Overview page, in section "The Other Stuff").
Here's my understanding of how change detection works:
setTimeout()
inside our components rather than something like $timeout
... because setTimeout()
is monkey patched.ChangeDetectorRef
.) These change detectors are created when Angular creates components. They keep track of the state of all of your bindings, for dirty checking. These are, in a sense, similar to the automatic $watches()
that Angular 1 would set up for {{}}
template bindings.onPush
change detection strategy on any of your components), every component in the tree is examined once (TTL=1)... from the top, in depth-first order. (Well, if you're in dev mode, change detection runs twice (TTL=2). See ApplicationRef.tick() for more about this.) It performs dirty checking on all of your bindings, using those change detector objects.
ngOnChanges()
to be notified of changes. ngDoCheck()
(see this SO answer for more on this). Other references to learn more:
onPush
.Just use format(number, qtyDecimals) sample: format(1000, 2) result 1000.00
This one worked for me-- If the issue still persists (in case you are not using a glassFish server), then close your JIdea and stop the server. This will disable the ports connectivity. Then start your server and JIdea, this will start fresh connectivity with the ports, resolving the issue.
The Collection interface includes the toArray() method to convert a new collection into an array. There are two forms of this method. The no argument version will return the elements of the collection in an Object array: public Object[ ] toArray(). The returned array cannot cast to any other data type. This is the simplest version. The second version requires you to pass in the data type of the array you’d like to return: public Object [ ] toArray(Object type[ ]).
public static void main(String[] args) {
List<String> l=new ArrayList<String>();
l.add("A");
l.add("B");
l.add("C");
Object arr[]=l.toArray();
for(Object a:arr)
{
String str=(String)a;
System.out.println(str);
}
}
for reference, refer this link http://techno-terminal.blogspot.in/2015/11/how-to-obtain-array-from-arraylist.html
Here's some pseudocode - you can cut same recursive calls by storing the values for each call as you go and before recursive call checking if the call value is already present.
The following algorithm will have all the subsets excluding the empty set.
list * subsets(string s, list * v) {
if(s.length() == 1) {
list.add(s);
return v;
}
else
{
list * temp = subsets(s[1 to length-1], v);
int length = temp->size();
for(int i=0;i<length;i++) {
temp.add(s[0]+temp[i]);
}
list.add(s[0]);
return temp;
}
}
So, for example if s = "123" then output is:
1
2
3
12
13
23
123
I had a similar issue following Firebase's online guide found here.
The section heading "Initialize multiple apps" is misleading as the first example under this heading actually demonstrates how to initialize a single, default app. Here's said example:
// Initialize the default app
var defaultApp = admin.initializeApp(defaultAppConfig);
console.log(defaultApp.name); // "[DEFAULT]"
// Retrieve services via the defaultApp variable...
var defaultAuth = defaultApp.auth();
var defaultDatabase = defaultApp.database();
// ... or use the equivalent shorthand notation
defaultAuth = admin.auth();
defaultDatabase = admin.database();
If you are migrating from the previous 2.x SDK you will have to update the way you access the database as shown above, or you will get the, No Firebase App '[DEFAULT]'
error.
Google has better documentation at the following:
I had the exact same problem, despite ASP.NET 4.5 appearing as installed under "Turn Windows Features On/Off". I tried everything until I finally removed ASP.NET 3.5 and 4.5 completely from under "Turn Windows Features On/Off", rebooted my PC and reinstalled them Again. That solved the problem.
Maybe usefull to someone. On a Windows system, you can let Windows do the job by calling the dir-command. I use an absolute path, like E:/mydir/mysubdir
.
<?php
$mydir='E:/mydir/mysubdir';
$dir=str_replace('/','\\',$mydir);
$total = exec('dir '.$dir.' /b/a-d | find /v /c "::"');
This is not my work (well, I modified it slightly from the example), and it's late to the game, but this works on Server 2003 for me;
@echo off
set daysofweek=Monday,Tuesday,Wednesday,Thursday,Friday,Saturday,Sunday
for /F "skip=2 tokens=2-4 delims=," %%A in ('WMIC Path Win32_LocalTime Get DayOfWeek /Format:csv') do set daynumber=%%A
for /F "tokens=%daynumber% delims=," %%B in ("%daysofweek%") do set day=%%B
Citation: TechSupportForum
Using alias for referencing the tables to get the columns from different tables after joining them.
Select tb1.*, tb2.col1, tb2.col2 from table1 tb1 JOIN table2 tb2 on tb1.Id = tb2.Id
I think you can find your answer here : Is an anchor tag without the href attribute safe?
Also if you want to no link operation with href , you can use it like :
<a href="javascript:void(0);">something</a>
I just tried on windows XP, it worked
local computer: sc \\. delete [service-name]
Deleting services in Windows Server 2003
We can use sc.exe in the Windows Server 2003 to control services, create services and delete services. Since some people thought they must directly modify the registry to delete a service, I would like to share how to use sc.exe to delete a service without directly modifying the registry so that decreased the possibility for system failures.
To delete a service:
Click “start“ - “run“, and then enter “cmd“ to open Microsoft Command Console.
Enter command:
sc servername delete servicename
For instance, sc \\dc delete myservice
(Note: In this example, dc is my Domain Controller Server name, which is not the local machine, myservice is the name of the service I want to delete on the DC server.)
Below is the official help of all sc functions:
DESCRIPTION:
SC is a command line program used for communicating with the
NT Service Controller and services.
USAGE:
sc
That response is a Map, with a single element with key '212315952136472'. There's no 'data' key in the Map. If you want to loop through all entries, use something like this:
JSONObject userJson = JSON.parse(jsonResponse)
userJson.each { id, data -> println data.link }
If you know it's a single-element Map then you can directly access the link
:
def data = userJson.values().iterator().next()
String link = data.link
And if you knew the id (e.g. if you used it to make the request) then you can access the value more concisely:
String id = '212315952136472'
...
String link = userJson[id].link
If anyone else that finds this question and needs a dynamic solution for this where you have an undefined number of columns to transpose to and not exactly 3, you can find a nice solution here: https://github.com/jumpstarter-io/colpivot
Might be a bit odd or bad practice but this is one way of going about it.
(arg1, arg2, arg3) = (1, 2, 3)
if (arg1 == 1)*(arg2 == 2)*(arg3 == 3):
print('Example.')
Anything multiplied by 0 == 0. If any of these conditions fail then it evaluates to false.
See here: Cross Browser favicon
Thats the way to go:
<link rel="icon" type="image/png" href="http://www.example.com/image.png"><!-- Major Browsers -->
<!--[if IE]><link rel="SHORTCUT ICON" href="http://www.example.com/alternateimage.ico"/><![endif]--><!-- Internet Explorer-->
Considering Rails 3:
html_safe
actually "sets the string" as HTML Safe (it's a little more complicated than that, but it's basically it). This way, you can return HTML Safe strings from helpers or models at will.
h
can only be used from within a controller or view, since it's from a helper. It will force the output to be escaped. It's not really deprecated, but you most likely won't use it anymore: the only usage is to "revert" an html_safe
declaration, pretty unusual.
Prepending your expression with raw
is actually equivalent to calling to_s
chained with html_safe
on it, but is declared on a helper, just like h
, so it can only be used on controllers and views.
"SafeBuffers and Rails 3.0" is a nice explanation on how the SafeBuffer
s (the class that does the html_safe
magic) work.
Given an OnTouchListener
private View.OnTouchListener handleTouch = new View.OnTouchListener() {
@Override
public boolean onTouch(View v, MotionEvent event) {
int x = (int) event.getX();
int y = (int) event.getY();
switch (event.getAction()) {
case MotionEvent.ACTION_DOWN:
Log.i("TAG", "touched down");
break;
case MotionEvent.ACTION_MOVE:
Log.i("TAG", "moving: (" + x + ", " + y + ")");
break;
case MotionEvent.ACTION_UP:
Log.i("TAG", "touched up");
break;
}
return true;
}
};
set on some view:
myView.setOnTouchListener(handleTouch);
This gives you the touch event coordinates relative to the view that has the touch listener assigned to it. The top left corner of the view is (0, 0)
. If you move your finger above the view, then y
will be negative. If you move your finger left of the view, then x
will be negative.
int x = (int)event.getX();
int y = (int)event.getY();
If you want the coordinates relative to the top left corner of the device screen, then use the raw values.
int x = (int)event.getRawX();
int y = (int)event.getRawY();
Single comment ctrl + / and also multiple line comment you can select multiple line and then ctrl + /. Then, to remove comment you can use ctrl + c for both single line and multiple line comment.
Number((6.688689).toFixed(1)); // 6.7
var number = 6.688689;
var roundedNumber = Math.round(number * 10) / 10;
Use toFixed()
function.
(6.688689).toFixed(); // equal to "7"
(6.688689).toFixed(1); // equal to "6.7"
(6.688689).toFixed(2); // equal to "6.69"
A bit late to the party but might be valuable to someone with this error..
I just straight copied a bunch of files into an Xcode project, if you forget to add them to your projects Build Phases you will get the error "Undefined symbols for architecture i386". So add your implementation files to Compile Sources, and Xib files to Copy Bundle Resources.
The error was telling me that there was no link to my classes simply because they weren't included in the Compile Sources, quite obvious really but may save someone a headache.
I assume by "didn't work" you mean that it's giving you a timestamp instead of the formatted date, because you were doing it correctly:
$effectiveDate = strtotime("+3 months", strtotime($effectiveDate)); // returns timestamp
echo date('Y-m-d',$effectiveDate); // formatted version
I faced the same problem here's the solution:(Explained)
@Override
protected void configure(HttpSecurity http) throws Exception {
http
.authorizeRequests()
.antMatchers(HttpMethod.POST,"/form").hasRole("ADMIN") // Specific api method request based on role.
.antMatchers("/home","/basic").permitAll() // permited urls to guest users(without login).
.anyRequest().authenticated()
.and()
.formLogin() // not specified form page to use default login page of spring security.
.permitAll()
.and()
.logout().deleteCookies("JSESSIONID") // delete memory of browser after logout.
.and()
.rememberMe().key("uniqueAndSecret"); // remember me check box enabled.
http.csrf().disable(); **// ADD THIS CODE TO DISABLE CSRF IN PROJECT.**
}
var newdata= //You call Ajax peticion//
$("#idGrid").clearGridData();
$("#idGrid").jqGrid('setGridParam', {data:newdata)});
$("#idGrid").trigger("reloadGrid");
in event update data table
I think your code is right. If you run the following code it converts the string '60' which is treated as varchar and it returns integer 60, if there is integer containing string in second it works.
select CONVERT(bigint,'60') as seconds
and it returns
60
Here is the code to generate random alphanumeric code. First you have to declare a string of allowed characters what you want to include in random number.and also define max length of string
SecureRandom secureRandom = new SecureRandom();
String CHARACTERS = "ABCDEFGHIJKLMNOPQRSTUVWXYZ123456789";
StringBuilder generatedString= new StringBuilder();
for (int i = 0; i < MAXIMUM_LENGTH; i++) {
int randonSequence = secureRandom .nextInt(CHARACTERS.length());
generatedString.append(CHARACTERS.charAt(randonSequence));
}
Use toString() method to get String from StringBuilder
For accessibility reason, I could not pull it off with multiple type=submit
buttons. The only way to work natively with a form
with multiple buttons but ONLY one can submit the form when hitting the Enter
key is to ensure that only one of them is of type=submit
while others are in other type such as type=button
. By this way, you can benefit from the better user experience in dealing with a form on a browser in terms of keyboard support.
Take a character pointer to store required string.If you have some idea about possible size of string then use function
char *fgets (char *str, int size, FILE* file);`
else you can allocate memory on runtime too using malloc() function which dynamically provides requested memory.
That specifies the how many digits you want it to show.
integer value or * that specifies minimum field width. The result is padded with space characters (by default), if required, on the left when right-justified, or on the right if left-justified. In the case when * is used, the width is specified by an additional argument of type int. If the value of the argument is negative, it results with the - flag specified and positive field width.
The Qt documentations has an Image Viewer example which demonstrates handling resizing images inside a QLabel
. The basic idea is to use QScrollArea
as a container for the QLabel
and if needed use label.setScaledContents(bool)
and scrollarea.setWidgetResizable(bool)
to fill available space and/or ensure QLabel inside is resizable.
Additionally, to resize QLabel while honoring aspect ratio use:
label.setPixmap(pixmap.scaled(width, height, Qt::KeepAspectRatio, Qt::FastTransformation));
The width
and height
can be set based on scrollarea.width()
and scrollarea.height()
.
In this way there is no need to subclass QLabel.
You can verify your SSH key passphrase by attempting to load it into your SSH agent. With OpenSSH this is done via ssh-add
.
Once you're done, remember to unload your SSH passphrase from the terminal by running ssh-add -d
.
Improving another answer here
input[type=checkbox] {
cursor: pointer;
margin-right: 10px;
}
input[type=checkbox]:after {
content: " ";
background-color: lightgray;
display: inline-block;
position: relative;
top: -4px;
width: 24px;
height: 24px;
margin-right: 10px;
}
input[type=checkbox]:checked:after {
content: "\00a0\2714";
}
Calling conventions defines how parameters are passed in the registers when calling or being called by other program. And the best source of these convention is in the form of ABI standards defined for each these hardware. For ease of compilation, the same ABI is also used by userspace and kernel program. Linux/Freebsd follow the same ABI for x86-64 and another set for 32-bit. But x86-64 ABI for Windows is different from Linux/FreeBSD. And generally ABI does not differentiate system call vs normal "functions calls". Ie, here is a particular example of x86_64 calling conventions and it is the same for both Linux userspace and kernel: http://eli.thegreenplace.net/2011/09/06/stack-frame-layout-on-x86-64/ (note the sequence a,b,c,d,e,f of parameters):
Performance is one of the reasons for these ABI (eg, passing parameters via registers instead of saving into memory stacks)
For ARM there is various ABI:
http://infocenter.arm.com/help/index.jsp?topic=/com.arm.doc.subset.swdev.abi/index.html
ARM64 convention:
http://infocenter.arm.com/help/topic/com.arm.doc.ihi0055b/IHI0055B_aapcs64.pdf
For Linux on PowerPC:
http://refspecs.freestandards.org/elf/elfspec_ppc.pdf
http://www.0x04.net/doc/elf/psABI-ppc64.pdf
And for embedded there is the PPC EABI:
http://www.freescale.com/files/32bit/doc/app_note/PPCEABI.pdf
This document is good overview of all the different conventions:
I hope this will work
EDITED
<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:paddingRight="15dp" >
<ImageView
android:id="@+id/place_category_icon"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_centerVertical="true"
android:contentDescription="ss"
android:paddingTop="10dp"
android:src="@drawable/ic_launcher" />
<TextView
android:id="@+id/place_distance"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignParentRight="true"
android:layout_centerVertical="true"
android:text="320" />
<TextView
android:id="@+id/place_title"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_centerVertical="true"
android:layout_marginLeft="15dp"
android:layout_toRightOf="@+id/place_category_icon"
android:text="Place Name"
android:textColor="#FFFF00"
android:textSize="14sp"
android:textStyle="bold" />
</RelativeLayout>
Yes, there are a few of them.
ReDoc [Article on swagger.io] [GitHub] [demo] - Reinvented OpenAPI/Swagger-generated API Reference Documentation (I'm the author)
OpenAPI GUI [GitHub] [demo] - GUI / visual editor for creating and editing OpenApi / Swagger definitions (has OpenAPI 3 support)
SwaggerUI-Angular [GitHub] [demo] - An angularJS implementation of Swagger UI
angular-swagger-ui-material [GitHub] [demo] - Material Design template for angular-swager-ui
Like all other had said above, you need to add path. But not sure for what reason if I add C:\xampp\php
in path of System Variable won't work but if I add it in path of User Variable work fine.
Although I had added and using other command line tools by adding in system variables work fine
So just in case if someone had same problem as me. Windows 10
Another approach is to not have the secret on the device in the first place! See Mobile API Security Techniques (especially part 3).
Using the time honored tradition of indirection, share the secret between your API endpoint and an app authentication service.
When your client wants to make an API call, it asks the app auth service to authenticate it (using strong remote attestation techniques), and it receives a time limited (usually JWT) token signed by the secret.
The token is sent with each API call where the endpoint can verify its signature before acting on the request.
The actual secret is never present on the device; in fact, the app never has any idea if it is valid or not, it juts requests authentication and passes on the resulting token. As a nice benefit from indirection, if you ever want to change the secret, you can do so without requiring users to update their installed apps.
So if you want to protect your secret, not having it in your app in the first place is a pretty good way to go.
I think token should be handled just like password. As such, they should be encrypted in DB.
I'n doing something like this to generate a unique new token for a model:
key = ActiveSupport::KeyGenerator
.new(Devise.secret_key)
.generate_key("put some random or the name of the key")
loop do
raw = SecureRandom.urlsafe_base64(nil, false)
enc = OpenSSL::HMAC.hexdigest('SHA256', key, raw)
break [raw, enc] unless Model.exist?(token: enc)
end
and what about:
int (*func())
{
int *f = new int[10] {1,2,3};
return f;
}
int fa[10] = { 0 };
auto func2() -> int (*) [10]
{
return &fa;
}
I had the same issue, my problem was that the firewall on the server wasn't open from the current ip address.
You can't use PHP to prevent a timeout issued by nginx.
To configure nginx to allow more time see the proxy_read_timeout
directive.
cd "Your File Location without inverted commas"
example : cd C:\Users*****\Desktop\directory\target
java -jar myjar.jar
example bat file looks like this:
@echo OFF
cd C:\Users\****\Desktop\directory\target
java -jar myjar.jar
This will work fine.
My solution is
fig = plt.figure()
fig.add_subplot(1, 2, 1) #top and bottom left
fig.add_subplot(2, 2, 2) #top right
fig.add_subplot(2, 2, 4) #bottom right
plt.show()
"Confirm" in Javascript stops the whole process until it gets a mouse response on its buttons. If that is what you are looking for, you can refer jquery-ui but if you have nothing running behind your process while receiving the response and you control the flow programatically, take a look at this. You will have to hard-code everything by yourself but you have complete command over customization. https://www.w3schools.com/howto/howto_css_modals.asp
I don't know if this will help, but I did this:
LocationManager locationManager = (LocationManager) context.getSystemService(context.LOCATION_SERVICE);
Here is how I did to download quickly with cURL (I'm not sure how many files it can download though) :
setlocal EnableDelayedExpansion
cd where\to\download
set STR=
for /f "skip=2 delims=" %%F in ('P:\curl -l -u user:password ftp://ftp.example.com/directory/anotherone/') do set STR=-O "ftp://ftp.example.com/directory/anotherone/%%F" !STR!
path\to\curl.exe -v -u user:password !STR!
Why skip=2 ?
To get ride of .
and ..
Why delims= ? To support names with spaces
No you wouldn't alter the "content" of the list, if you could mutate strings that way. But in Python they are not mutable. Any string operation returns a new string.
If you had a list of objects you knew were mutable, you could do this as long as you don't change the actual contents of the list.
Thus you will need to do a map of some sort. If you use a generator expression it [the operation] will be done as you iterate and you will save memory.
On linux distributions (@least on Debian with plasma) the default shortcut is
Ctrl + 0
I came back to this problem now that we are finalizing the game and I just thought to post what worked for me.
This is the method for rotating the Matrix:
this.matrix.reset();
this.matrix.setTranslate(this.floatXpos, this.floatYpos);
this.matrix.postRotate((float)this.direction, this.getCenterX(), this.getCenterY());
(this.getCenterX()
is basically the bitmaps X position + the bitmaps width / 2)
And the method for Drawing the bitmap (called via a RenderManager
Class):
canvas.drawBitmap(this.bitmap, this.matrix, null);
So it is prettey straight forward but I find it abit strange that I couldn't get it to work by setRotate
followed by postTranslate
. Maybe some knows why this doesn't work? Now all the bitmaps rotate properly but it is not without some minor decrease in bitmap quality :/
Anyways, thanks for your help!
je : Jump if equal:
399 3fb: 64 48 33 0c 25 28 00 xor %fs:0x28,%rcx
400 402: 00 00
401 404: 74 05 je 40b <sims_get_counter+0x51>
You don't need a regex for this one. Use the isNAN()
JavaScript function.
The isNaN() function determines whether a value is an illegal number (Not-a-Number). This function returns true if the value is NaN, and false if not.
if (isNaN($('#Field').val()) == false) {
// It's a number
}
The accepted answer has major drawback!
If you loaded your image that way your PictureBox will lock the image,so if you try to do any future operations on that image,you will get error message image used in another application!
This article show solution in VB
and This is C# implementation
FileStream fs = new System.IO.FileStream(@"Images\a.bmp", FileMode.Open, FileAccess.Read);
pictureBox1.Image = Image.FromStream(fs);
fs.Close();
You are not allowed to have a CNAME record for the domain, as the CNAME is an aliasing feature that covers all data types (regardless of whether the client looks for MX, NS or SOA records). CNAMEs also always refer to a new name, not an ip-address, so there are actually two errors in the single line
@ IN CNAME 88.198.38.XXX
Changing that CNAME to an A record should make it work, provided the ip-address you use is the correct one for your Heroku app.
The only correct way in DNS to make a simple domain.com
name work in the browser, is to point the domain to an IP-adress with an A record.
Give a different alias
SELECT Convert(varchar,A.InsertDate,103) as converted_Tran_Date from table as A
order by A.InsertDate
allow from all will not work along with Require local. Instead, try Require ip xxx.xxx.xxx.xx
For Example:
# New XAMPP security concept
#
<LocationMatch "^/(?i:(?:xampp|security|licenses|phpmyadmin|webalizer|server-status|server-info))">
Require local
Require ip 10.0.0.1
ErrorDocument 403 /error/XAMPP_FORBIDDEN.html.var
</LocationMatch>
import matplotlib.pyplot as plt
import numpy as np
from matplotlib.colors import ListedColormap
#discrete color scheme
cMap = ListedColormap(['white', 'green', 'blue','red'])
#data
np.random.seed(42)
data = np.random.rand(4, 4)
fig, ax = plt.subplots()
heatmap = ax.pcolor(data, cmap=cMap)
#legend
cbar = plt.colorbar(heatmap)
cbar.ax.get_yaxis().set_ticks([])
for j, lab in enumerate(['$0$','$1$','$2$','$>3$']):
cbar.ax.text(.5, (2 * j + 1) / 8.0, lab, ha='center', va='center')
cbar.ax.get_yaxis().labelpad = 15
cbar.ax.set_ylabel('# of contacts', rotation=270)
# put the major ticks at the middle of each cell
ax.set_xticks(np.arange(data.shape[1]) + 0.5, minor=False)
ax.set_yticks(np.arange(data.shape[0]) + 0.5, minor=False)
ax.invert_yaxis()
#labels
column_labels = list('ABCD')
row_labels = list('WXYZ')
ax.set_xticklabels(column_labels, minor=False)
ax.set_yticklabels(row_labels, minor=False)
plt.show()
You were very close. Once you have a reference to the color bar axis, you can do what ever you want to it, including putting text labels in the middle. You might want to play with the formatting to make it more visible.
You can dynamically populate a list via AJAX using the excellent Select2 plugin. From my answer to "Is there a way to dynamically ajax add elements through jquery chosen plugin?":
Take a look at the neat Select2 plugin, which is based on Chosen itself and supports remote data sources (aka AJAX data) and infinite scrolling.
Just Call super.variable in sub class constructor
public abstract class Beverage {
int cost;
int getCost() {
return cost;
}
}`
public class Coffee extends Beverage {
int cost = 10;
Coffee(){
super.cost = cost;
}
}`
public class Driver {
public static void main(String[] args) {
Beverage coffee = new Coffee();
System.out.println(coffee.getCost());
}
}
Output is 10.
I found that @gdxn96 solution worked for me, but with 1 change.
sudo wget http://cdn.mysql.com//Downloads/Connector-Python/mysql-connector-python-2.1.3.tar.gz
tar -zxvf mysql-connector-python-2.1.3.tar
cd mysql-connector-python-2.1.3
sudo python3 setup.py install
Try this :
<script type="text/javascript">
function clearThis(target){
if(target.value == "[email protected]")
{
target.value= "";
}
}
</script>
Try this.
Here is the service part.
[ServiceContract]
public interface IService
{
[OperationContract]
void HelloWorld();
}
public class Service : IService
{
public void HelloWorld()
{
//Hello World
}
}
Here is the Proxy
public class ServiceProxy : ClientBase<IService>
{
public ServiceProxy()
: base(new ServiceEndpoint(ContractDescription.GetContract(typeof(IService)),
new NetNamedPipeBinding(), new EndpointAddress("net.pipe://localhost/MyAppNameThatNobodyElseWillUse/helloservice")))
{
}
public void InvokeHelloWorld()
{
Channel.HelloWorld();
}
}
And here is the service hosting part.
var serviceHost = new ServiceHost
(typeof(Service), new Uri[] { new Uri("net.pipe://localhost/MyAppNameThatNobodyElseWillUse") });
serviceHost.AddServiceEndpoint(typeof(IService), new NetNamedPipeBinding(), "helloservice");
serviceHost.Open();
Console.WriteLine("Service started. Available in following endpoints");
foreach (var serviceEndpoint in serviceHost.Description.Endpoints)
{
Console.WriteLine(serviceEndpoint.ListenUri.AbsoluteUri);
}
To summarize Laryx Decidua's answer:
define and use a function like the following
plot.with.errorbars <- function(x, y, err, ylim=NULL, ...) {
if (is.null(ylim))
ylim <- c(min(y-err), max(y+err))
plot(x, y, ylim=ylim, pch=19, ...)
arrows(x, y-err, x, y+err, length=0.05, angle=90, code=3)
}
where one can override the automatic ylim, and also pass extra parameters such as main, xlab, ylab.
I have found the following has worked for me:
java -jar my-awesome-java-prog.jar --spring.config.location=file:/path-to-config-dir/
with file:
added.
LATE EDIT
Of course, this command line is never run as it is in production.
Rather I have
shell
scripts in source control with place holders for all parts of the command that could change (name of the jar, path to config...)ansible
deployment scripts that will deploy the shell
scripts and replace the place holders by the actual value.char **orderIds;
orderIds = malloc(variableNumberOfElements * sizeof(char*));
for(int i = 0; i < variableNumberOfElements; i++) {
orderIds[i] = malloc((ID_LEN + 1) * sizeof(char));
strcpy(orderIds[i], your_string[i]);
}
You need to use jackson-module-kotlin
to deserialize to data classes. See here for details.
The error message above is what Jackson gives you if you try to deserialize some value into a data class when that module isn't enabled or, even if it is, when the ObjectMapper
it uses doesn't have the KotlinModule
registered. For example, take this code:
data class TestDataClass (val foo: String)
val jsonString = """{ "foo": "bar" }"""
val deserializedValue = ObjectMapper().readerFor(TestDataClass::class.java).readValue<TestDataClass>(jsonString)
This will fail with the following error:
com.fasterxml.jackson.databind.exc.MismatchedInputException: Cannot construct instance of `test.SerializationTests$TestDataClass` (although at least one Creator exists): cannot deserialize from Object value (no delegate- or property-based Creator)
If you change the code above and replace ObjectMapper
with jacksonObjectMapper
(which simply returns a normal ObjectMapper
with the KotlinModule
registered), it works. i.e.
val deserializedValue = jacksonObjectMapper().readerFor(TestDataClass::class.java).readValue<TestDataClass>(jsonString)
I'm not sure about the Android side of things, but it looks like you'll need to get the system to use the jacksonObjectMapper
to do the deserialization.
The three best way to do it using a single line of code
import cv2
import numpy as np
img = cv2.imread('Imgs/Saint_Roch_new/data/Point_4_Face.jpg')
dim = (256, 256)
resizedLena = cv2.resize(img, dim, interpolation = cv2.INTER_LINEAR)
X, Y = resizedLena, resizedLena
# Methode 1: Using Numpy (hstack, vstack)
Fusion_Horizontal = np.hstack((resizedLena, Y, X))
Fusion_Vertical = np.vstack((newIMG, X))
cv2.imshow('Fusion_Vertical using vstack', Fusion_Vertical)
cv2.waitKey(0)
# Methode 2: Using Numpy (contanate)
Fusion_Vertical = np.concatenate((resizedLena, X, Y), axis=0)
Fusion_Horizontal = np.concatenate((resizedLena, X, Y), axis=1)
cv2.imshow("Fusion_Horizontal usung concatenate", Fusion_Horizontal)
cv2.waitKey(0)
# Methode 3: Using OpenCV (vconcat, hconcat)
Fusion_Vertical = cv2.vconcat([resizedLena, X, Y])
Fusion_Horizontal = cv2.hconcat([resizedLena, X, Y])
cv2.imshow("Fusion_Horizontal Using hconcat", Fusion_Horizontal)
cv2.waitKey(0)
git version 2.16.1.windows.4
Just doing a git fetch remoteRepositoryName branchName (eg: git fetch origin my_local_branch)
is enough. Fetch will be done and a new local branch will be created with the same name and tracking will be set to remote branch.
Then perform git checkout branchName
In English:
401
You are potentially allowed access but for some reason on this request you were denied. Such as a bad password? Try again, with the correct request you will get a success response instead.
403
You are not, ever, allowed. Your name is not on the list, you won't ever get in, go away, don't send a re-try request, it will be refused, always. Go away.
Since Java 7 you can use java.util.Objects.equals(Object a, Object b):
These utilities include null-safe or null-tolerant methods
Long id1 = null;
Long id2 = 0l;
Objects.equals(id1, id2));
In my case, my server was configured to work only in https mode, and error occured when I try to access http mode. So changing http://my-service
to https://my-service
helped.
Libman seems to be the tool preferred by Microsoft now. It is integrated in Visual Studio 2017(15.8).
This article describes how to use it and even how to set up a restore performed by the build process.
Bootstrap's documentation tells you what files you need in your project.
The following example should work as a configuration for libman.json.
{
"version": "1.0",
"defaultProvider": "cdnjs",
"libraries": [
{
"library": "[email protected]",
"destination": "wwwroot/lib/bootstrap",
"files": [
"js/bootstrap.bundle.js",
"css/bootstrap.min.css"
]
},
{
"library": "[email protected]",
"destination": "wwwroot/lib/jquery",
"files": [
"jquery.min.js"
]
}
]
}
This may be of help to a few who are struggling like I was:
var data = myform.getRange("A:AA").getValues().pop();
var myvariable1 = data[4];
var myvariable2 = data[7];
I've been pulling my hair out over this one for a couple of hours also. fakeartist appears correct though - I changed the file extension from .htm to .php and I can now see my page in Facebook! It also works if you change the extension to .aspx - perhaps it just needs to be a server side extension (I've not tried with .jsp).
While you can use a virtualenv
, you don't need to. The trick is passing the PEP370 --user
argument to the setup.py
script. With the latest version of pip
, one way to do it is:
pip install --user mercurial
This should result in the hg
script being installed in $HOME/.local/bin/hg
and the rest of the hg package in $HOME/.local/lib/pythonx.y/site-packages/
.
Note, that the above is true for Python 2.6. There has been a bit of controversy among the Python core developers about what is the appropriate directory location on Mac OS X for PEP370-style user
installations. In Python 2.7 and 3.2, the location on Mac OS X was changed from $HOME/.local
to $HOME/Library/Python
. This might change in a future release. But, for now, on 2.7 (and 3.2, if hg
were supported on Python 3), the above locations will be $HOME/Library/Python/x.y/bin/hg
and $HOME/Library/Python/x.y/lib/python/site-packages
.
use the HorizontalContentAlignment property.
Sample
<Label HorizontalContentAlignment="Center"/>
My fix for this on Mountain Lion was: -
npm install -g grunt-cli
Saw it on http://gruntjs.com/getting-started
So I assume your permissions table has a foreign key reference to admin_accounts table. If so because of referential integrity you will only be able to add permissions for account ids exsiting in the admin accounts table. Which also means that you wont be able to enter a user_account_id [assuming there are no duplicates!]
You must declare parse_file like this; def parse_file(self)
. The "self" parameter is a hidden parameter in most languages, but not in python. You must add it to the definition of all that methods that belong to a class.
Then you can call the function from any method inside the class using self.parse_file
your final program is going to look like this:
class MyClass():
def __init__(self, filename):
self.filename = filename
self.stat1 = None
self.stat2 = None
self.stat3 = None
self.stat4 = None
self.stat5 = None
self.parse_file()
def parse_file(self):
#do some parsing
self.stat1 = result_from_parse1
self.stat2 = result_from_parse2
self.stat3 = result_from_parse3
self.stat4 = result_from_parse4
self.stat5 = result_from_parse5
You should add "throws IOException" to your main method:
public static void main(String[] args) throws IOException {
You can read a bit more about checked exceptions (which are specific to Java) in JLS.
For those of us who prefer jQuery, you would use the form plugin: http://plugins.jquery.com/project/form, which contains a formSerialize method.
just a tip,
try to use JodaTime instead of java,util.Date it is much more powerfull and it has a method toString("") that you can pass the format you want like toString("yyy-MM-dd HH:mm:ss");
This was a Tomcat bug that resurfaced again with the Java 9 bytecode. The exact versions which fix this (for both Java 8/9 bytecode) are:
public abstract class Metadata
{
}
// extend abstract Metadata class
public class Metadata<DataType> : Metadata where DataType : struct
{
private DataType mDataType;
}
The rolling mean returns a Series
you only have to add it as a new column of your DataFrame
(MA
) as described below.
For information, the rolling_mean
function has been deprecated in pandas newer versions. I have used the new method in my example, see below a quote from the pandas documentation.
Warning Prior to version 0.18.0,
pd.rolling_*
,pd.expanding_*
, andpd.ewm*
were module level functions and are now deprecated. These are replaced by using theRolling
,Expanding
andEWM.
objects and a corresponding method call.
df['MA'] = df.rolling(window=5).mean()
print(df)
# Value MA
# Date
# 1989-01-02 6.11 NaN
# 1989-01-03 6.08 NaN
# 1989-01-04 6.11 NaN
# 1989-01-05 6.15 NaN
# 1989-01-09 6.25 6.14
# 1989-01-10 6.24 6.17
# 1989-01-11 6.26 6.20
# 1989-01-12 6.23 6.23
# 1989-01-13 6.28 6.25
# 1989-01-16 6.31 6.27
You can use the xmp
element, see What was the <XMP> tag used for?. It has been in HTML since the beginning and is supported by all browsers. Specifications frown upon it, but HTML5 CR still describes it and requires browsers to support it (though it also tells authors not to use it, but it cannot really prevent you).
Everything inside xmp
is taken as such, no markup (tags or character references) is recognized there, except, for apparent reason, the end tag of the element itself, </xmp>
.
Otherwise xmp
is rendered like pre
.
When using “real XHTML”, i.e. XHTML served with an XML media type (which is rare), the special parsing rules do not apply, so xmp
is treated like pre
. But in “real XHTML”, you can use a CDATA section, which implies similar parsing rules. It has no special formatting, so you would probably want to wrap it inside a pre
element:
<pre><![CDATA[
This is a demo, tags like <p> will
appear literally.
]]></pre>
I don’t see how you could combine xmp
and CDATA section to achieve so-called polyglot markup
For script creation at Windows cmd or powershell prompt:
C:\ProgramData\Anaconda3\Scripts\activate.bat C:\ProgramData\Anaconda3
conda list
pip list
HTML5 basically behaves as if the trailing slash is not there. There is no such thing as a self-closing tag in HTML5 syntax.
Self-closing tags on non-void elements like <p/>
, <div/>
will not work at all. The trailing slash will be ignored, and these will be treated as opening tags. This is likely to lead to nesting problems.
This is true regardless of whether there is whitespace in front of the slash: <p />
and <div />
also won't work for the same reason.
Self-closing tags on void elements like <br/>
or <img src="" alt=""/>
will work, but only because the trailing slash is ignored, and in this case that happens to result in the correct behaviour.
The result is, anything that worked in your old "XHTML 1.0 served as text/html" will continue to work as it did before: trailing slashes on non-void tags were not accepted there either whereas the trailing slash on void elements worked.
One more note: it is possible to represent an HTML5 document as XML, and this is sometimes dubbed "XHTML 5.0". In this case the rules of XML apply and self-closing tags will always be handled. It would always need to be served with an XML mime type.
You can easily do this in Kotlin using the following code:
val fileData = "your_json_string"
val gson = GsonBuilder().create()
val packagesArray = gson.fromJson(fileData , Array<YourClass>::class.java).toList()
Basically, you only need to provide an Array
of YourClass
objects.
This works for me.
import React, { useEffect } from 'react';
useEffect(() => {
const body = document.querySelector('#root');
body.scrollIntoView({
behavior: 'smooth'
}, 500)
}, []);
VisualVm does not come with Apple JDK. You can use VisualVM Mac Application bundle(dmg) as a separate application, to compensate for that.
inside class,
final usernameController = TextEditingController(text: 'bhanuka');
TextField,
child: new TextField(
controller: usernameController,
...
)
In my case the problem was with migration timing be careful while creating migrations firstly create the child migration than the base migration. Because if you create base migration first which have your foreign key will look for child table and there wont be table which then throw an exception.
Further more:
When you create migration it has a timestamp in the beginning of it. lets say you have created a migration cat so it will look like 2015_08_19_075954_the_cats_time.php
and it has this code
<?php
use Illuminate\Database\Schema\Blueprint;
use Illuminate\Database\Migrations\Migration;
class TheCatsTime extends Migration
{
/**
* Run the migrations.
*
* @return void
*/
public function up()
{
Schema::create('cat', function (Blueprint $table) {
$table->increments('id');
$table->string('name');
$table->date('date_of_birth');
$table->integer('breed_id')->unsigned()->nullable();
});
Schema::table('cat', function($table) {
$table->foreign('breed_id')->references('id')->on('breed');
});
}
/**
* Reverse the migrations.
*
* @return void
*/
public function down()
{
Schema::drop('cat');
}
}
And after creating the base table you create another migration breed which is child table it has its own creation time and date stamp. The code will look like :
<?php
use Illuminate\Database\Schema\Blueprint;
use Illuminate\Database\Migrations\Migration;
class BreedTime extends Migration
{
/**
* Run the migrations.
*
* @return void
*/
public function up()
{
Schema::create('breed', function (Blueprint $table) {
$table->increments('id');
$table->string('name');
});
}
/**
* Reverse the migrations.
*
* @return void
*/
public function down()
{
Schema::drop('breed');
}
}
it seems these both table are correct but when you run php artisan migrate. It will throw an exception because migration will first create the base table in your database because you have created this migration first and our base table has foreign key constraint in it which will look for child table and the child table doesn't exist which is probably an exception..
So:
Create child table migration first.
Create base table migration after child migration is created.
php artisan migrate.
done it will work
Another method for catching EXC_BAD_ACCESS exceptions before they happen is the static analyzer, in XCode 4+.
Run the static analyzer with Product > Analyze (shift+cmd+B). Clicking on any messages generated by the analyzer will overlay a diagram on your source showing the sequence of retains/releases of the offending object.
cURL-less you can use in php5
$url = 'URL';
$data = array('field1' => 'value', 'field2' => 'value');
$options = array(
'http' => array(
'header' => "Content-type: application/x-www-form-urlencoded\r\n",
'method' => 'POST',
'content' => http_build_query($data),
)
);
$context = stream_context_create($options);
$result = file_get_contents($url, false, $context);
var_dump($result);
Instead of Activity use context.It works for me.
@Override
public void onAttach(Context context) {
super.onAttach(context);
try {
mListener = (OnFragmentInteractionListener) context;
} catch (ClassCastException e) {
throw new ClassCastException(context.toString()
+ " must implement OnFragmentInteractionListener");
}
}
the problem might be the wname, try using one of those shown in the link above, i quote:
Optional. String that specifies the name of the window. This name is used as the value for the TARGET attribute on a form or an anchor element.
- _blank The sURL is loaded into a new, unnamed window.
- _media The url is loaded in the Media Bar in Microsoft Internet Explorer 6. Microsoft Windows XP Service Pack 2 (SP2) and later. This feature is no longer supported. By default the url is loaded into a new browser window or tab.
- _parent The sURL is loaded into the current frame's parent. If the frame has no parent, this value acts as the value _self.
- _search Disabled in Windows Internet Explorer 7, see Security and Compatibility in Internet Explorer 7 for details. Otherwise, the sURL is opened in the browser's search pane in Internet Explorer 5 or later.
- _self The current document is replaced with the specified sURL.
- _top sURL replaces any framesets that may be loaded. If there are no framesets defined, this value acts as the value _self.
if using another wname, window.open won't execute...
I am using the python package psycopg2 and I got this error while querying. I kept running just the query and then the execute function, but when I reran the connection (shown below), it resolved the issue. So rerun what is above your script i.e the connection, because as someone said above, I think it lost the connection or was out of sync or something.
connection = psycopg2.connect(user = "##",
password = "##",
host = "##",
port = "##",
database = "##")
cursor = connection.cursor()
My opinion is C# and ASP.NET would be the best of the three for development that is web biased.
I doubt anyone writes new web apps in C or C++ anymore. It was done 10 years ago, and there's likely a lot of legacy code still in use, but they're not particularly well suited, there doesn't appear to be as much (ongoing) tool support, and they probably have a small active community that does web development (except perhaps for web server development). I wrote many website C++ COM objects back in the day, but C# is far more productive that there's no compelling reason to code C or C++ (in this context) unless you need to.
I do still write C++ if necessary, but it's typically for a small problem domain. e.g. communicating from C# via P/Invoke to old C-style dll's - doing some things that are downright clumsy in C# were a breeze to create a C++ COM object as a bridge.
The nice thing with C# is that you can also easily transfer into writing Windows and Console apps and stay in C#. With Mono you're also not limited to Windows (although you may be limited to which libraries you use).
Anyways this is all from a web-biased perspective. If you asked about embedded devices I'd say C or C++. You could argue none of these are suited for web development, but C#/ASP.NET is pretty slick, it works well, there are heaps of online resources, a huge community, and free dev tools.
So from a real-world perspective, picking only one of C#, C++ and C as requested, as a general rule, you're better to stick with C#.
IF this is only occurring on deployments, be sure that you have the dependency of the package you are referencing in the .war. For instance, this was working locally on my machine, with debug configurations working fine, but after deploying to Amazon's Elastic Beanstalk , I received this error and noticed one of the dependencies was not bundled in the .war package.
You would need to have an instance of ClassA within ClassB or have ClassB inherit ClassA
class ClassA {
public function getName() {
echo $this->name;
}
}
class ClassB extends ClassA {
public function getName() {
parent::getName();
}
}
Without inheritance or an instance method, you'd need ClassA to have a static method
class ClassA {
public static function getName() {
echo "Rawkode";
}
}
--- other file ---
echo ClassA::getName();
If you're just looking to call the method from an instance of the class:
class ClassA {
public function getName() {
echo "Rawkode";
}
}
--- other file ---
$a = new ClassA();
echo $a->getName();
Regardless of the solution you choose, require 'ClassA.php
is needed.
Use the instanceof
operator:
if(a instanceof MyClass)
{
//do something
}
In VS 2010 just right click on project or on reference and click add reference. On the popup window Select Assemblies - > Extensions -> System.Web.Helpers
This thing worked for me. No any external liabraries used
define ("MAX_SIZE","3000");
function getExtension($str) {
$i = strrpos($str,".");
if (!$i) { return ""; }
$l = strlen($str) - $i;
$ext = substr($str,$i+1,$l);
return $ext;
}
$errors=0;
if($_SERVER["REQUEST_METHOD"] == "POST")
{
$image =$_FILES["image-1"]["name"];
$uploadedfile = $_FILES['image-1']['tmp_name'];
if ($image)
{
$filename = stripslashes($_FILES['image-1']['name']);
$extension = getExtension($filename);
$extension = strtolower($extension);
if (($extension != "jpg") && ($extension != "jpeg") && ($extension != "png") && ($extension != "gif"))
{
echo "Unknown Extension..!";
}
else
{
$size=filesize($_FILES['image-1']['tmp_name']);
if ($size > MAX_SIZE*1024)
{
echo "File Size Excedeed..!!";
}
if($extension=="jpg" || $extension=="jpeg" )
{
$uploadedfile = $_FILES['image-1']['tmp_name'];
$src = imagecreatefromjpeg($uploadedfile);
}
else if($extension=="png")
{
$uploadedfile = $_FILES['image-1']['tmp_name'];
$src = imagecreatefrompng($uploadedfile);
}
else
{
$src = imagecreatefromgif($uploadedfile);
echo $scr;
}
list($width,$height)=getimagesize($uploadedfile);
$newwidth=1000;
$newheight=($height/$width)*$newwidth;
$tmp=imagecreatetruecolor($newwidth,$newheight);
$newwidth1=1000;
$newheight1=($height/$width)*$newwidth1;
$tmp1=imagecreatetruecolor($newwidth1,$newheight1);
imagecopyresampled($tmp,$src,0,0,0,0,$newwidth,$newheight,$width,$height);
imagecopyresampled($tmp1,$src,0,0,0,0,$newwidth1,$newheight1,$width,$height);
$filename = "../images/product-image/Cars/". $_FILES['image-1']['name'];
$filename1 = "../images/product-image/Cars/small". $_FILES['image-1']['name'];
imagejpeg($tmp,$filename,100);
imagejpeg($tmp1,$filename1,100);
imagedestroy($src);
imagedestroy($tmp);
imagedestroy($tmp1);
}}
}
You do not have Gemfile
in a directory where you run that command.
Gemfile
is a file containing your gem
settings for a current program.
Ilmari Karonen has good advice, and I'd just like to generalize it a bit. In general, before you ask "how can I get a computer to do this?" ask "how would I do this?"
So, if someone gave you an empty Word document and asked you to create the triangles, how would you go about doing it? Whatever solution you come up with, it's usually not hard to translate it to Java (or any other programming language). It might not be the best solution, but (hopefully!) it'll work, and it may point you to a better solution.
So for instance, maybe you would say that you'd type out the base, then go up a line, then type the next highest line, etc. That suggests that you can do the same in Java -- create a list of Strings, base-to-top, and then reverse them. That might suggest that you can just create them in reverse order, and then not have to reverse them. And then that might suggest that you don't need the list anymore, since you'll just be creating and printing them out in the same order -- at which point you've come up with essentially Ilmari Karonen's advice.
Or, maybe you'd come up with another way of doing it -- maybe you'd come up with Ilmari Karonen's idea more directly. Regardless, it should help you solve this and many other problems.
Pasting my code here, this should help. It shows the package which can be used.
import org.json.JSONException;
import org.json.JSONObject;
public class extractingJSON {
public static void main(String[] args) throws JSONException {
// TODO Auto-generated method stub
String jsonStr = "{\"name\":\"SK\",\"arr\":{\"a\":\"1\",\"b\":\"2\"}}";
JSONObject jsonObj = new JSONObject(jsonStr);
String name = jsonObj.getString("name");
System.out.println(name);
String first = jsonObj.getJSONObject("arr").getString("a");
System.out.println(first);
}
}
Use JSON to transfer data types (arrays and objects) between client and server.
In PHP:
In JavaScript:
PHP:
echo json_encode($id_numbers);
JavaScript:
id_numbers = JSON.parse(msg);
As Wolfgang mentioned, you can give a fourth parameter to jQuery to automatically decode JSON for you.
id_numbers = new Array();
$.ajax({
url:"Example.php",
type:"POST",
success:function(msg){
id_numbers = msg;
},
dataType:"json"
});
For MVC, ignore input validation by adding
[ValidateInput(false)]
above each Action in the Controller.
Here is a function that I use (slightly redacted). It allows input and output parameters. I only have uniqueidentifier and varchar types implemented, but any other types are easy to add. If you use parameterized stored procedures (or just parameterized sql...this code is easily adapted to that), this will make your life a lot easier.
To call the function, you need a connection to the SQL server (say $conn),
$res=exec-storedprocedure -storedProcName 'stp_myProc' -parameters @{Param1="Hello";Param2=50} -outparams @{ID="uniqueidentifier"} $conn
retrieve proc output from returned object
$res.data #dataset containing the datatables returned by selects
$res.outputparams.ID #output parameter ID (uniqueidentifier)
The function:
function exec-storedprocedure($storedProcName,
[hashtable] $parameters=@{},
[hashtable] $outparams=@{},
$conn,[switch]$help){
function put-outputparameters($cmd, $outparams){
foreach($outp in $outparams.Keys){
$cmd.Parameters.Add("@$outp", (get-paramtype $outparams[$outp])).Direction=[System.Data.ParameterDirection]::Output
}
}
function get-outputparameters($cmd,$outparams){
foreach($p in $cmd.Parameters){
if ($p.Direction -eq [System.Data.ParameterDirection]::Output){
$outparams[$p.ParameterName.Replace("@","")]=$p.Value
}
}
}
function get-paramtype($typename,[switch]$help){
switch ($typename){
'uniqueidentifier' {[System.Data.SqlDbType]::UniqueIdentifier}
'int' {[System.Data.SqlDbType]::Int}
'xml' {[System.Data.SqlDbType]::Xml}
'nvarchar' {[System.Data.SqlDbType]::NVarchar}
default {[System.Data.SqlDbType]::Varchar}
}
}
if ($help){
$msg = @"
Execute a sql statement. Parameters are allowed.
Input parameters should be a dictionary of parameter names and values.
Output parameters should be a dictionary of parameter names and types.
Return value will usually be a list of datarows.
Usage: exec-query sql [inputparameters] [outputparameters] [conn] [-help]
"@
Write-Host $msg
return
}
$close=($conn.State -eq [System.Data.ConnectionState]'Closed')
if ($close) {
$conn.Open()
}
$cmd=new-object system.Data.SqlClient.SqlCommand($sql,$conn)
$cmd.CommandType=[System.Data.CommandType]'StoredProcedure'
$cmd.CommandText=$storedProcName
foreach($p in $parameters.Keys){
$cmd.Parameters.AddWithValue("@$p",[string]$parameters[$p]).Direction=
[System.Data.ParameterDirection]::Input
}
put-outputparameters $cmd $outparams
$ds=New-Object system.Data.DataSet
$da=New-Object system.Data.SqlClient.SqlDataAdapter($cmd)
[Void]$da.fill($ds)
if ($close) {
$conn.Close()
}
get-outputparameters $cmd $outparams
return @{data=$ds;outputparams=$outparams}
}
I use it for two reasons:
I can force a refresh of the icon by adding a query parameter for example ?v=2
. like this:
<link rel="icon" href="/favicon.ico?v=2" type="image/x-icon" />
In case I need to specify the path.
You can use addEventListener
to pass this
to a JavaScript function.
HTML
<button id="button">Year</button>
JavaScript
(function () {
var btn = document.getElementById('button');
btn.addEventListener('click', function () {
Date('#year');
}, false);
})();
function Data(string)
{
$('.filter').removeClass('active');
$(this).parent().addClass('active') ;
}
This is default by iOS7 design. try to do the below:
[tableView setSeparatorInset:UIEdgeInsetsMake(0, 0, 0, 0)];
You can set the 'Separator Inset' from the storyboard:
Found successful workaround that is applicable for my scenario:
Don't log off, just lock the session!
Since this script is running on a Domain Controller, I am logging in to the server via the Remote Desktop console and then log off of the server to terminate my session. When setting up the Task in the Task Scheduler, I was using user accounts and local services that did not have access to run in an offline mode, or logon strictly to run a script.
Thanks to some troubleshooting assistance from Cole, I got to thinking about the RunAs function and decided to try and work around the non-functioning logons.
Starting in the Task Scheduler, I deleted my manually created Tasks. Using the new function in Server 2008 R2, I navigated to a 4740 Security Event in the Event Viewer, and used the right-click > Attach Task to this Event... and followed the prompts, pointing to my script on the Action page. After the Task was created, I locked my session and terminated my Remote Desktop Console connection. WIth the profile 'Locked' and not logged off, everything works like it should.
$('#productThumb img').each(function() {
var maxWidth = 140; // Max width for the image
var maxHeight = 140; // Max height for the image
var ratio = 0; // Used for aspect ratio
var width = $(this).width(); // Current image width
var height = $(this).height(); // Current image height
// Check if the current width is larger than the max
if(width > height){
height = ( height / width ) * maxHeight;
} else if(height > width){
maxWidth = (width/height)* maxWidth;
}
$(this).css("width", maxWidth); // Set new width
$(this).css("height", maxHeight); // Scale height based on ratio
});
You can replace image automatically with newly selected image.
<div class="image-upload">
<label for="file-input">
<img id="previewImg" src="https://icon-library.net/images/upload-photo-icon/upload-photo-icon-21.jpg" style="width: 100px; height: 100px;" />
</label>
<input id="file-input" type="file" onchange="previewFile(this);" style="display: none;" />
</div>
<script>
function previewFile(input){
var file = $("input[type=file]").get(0).files[0];
if(file){
var reader = new FileReader();
reader.onload = function(){
$("#previewImg").attr("src", reader.result);
}
reader.readAsDataURL(file);
}
}
</script>
Try this (via a shell):
update db
locate index.html
Or:
find /var -iname "index.html"
Replace /var with your best guess as to the directory it is in but avoid starting from /
protected void gvProductsList_RowCommand(object sender, GridViewCommandEventArgs e)
{
try
{
if (e.CommandName == "Delete")
{
GridViewRow gvr = (GridViewRow)(((ImageButton)e.CommandSource).NamingContainer);
int RemoveAt = gvr.RowIndex;
DataTable dt = new DataTable();
dt = (DataTable)ViewState["Products"];
dt.Rows.RemoveAt(RemoveAt);
dt.AcceptChanges();
ViewState["Products"] = dt;
}
}
catch (Exception ex)
{
throw;
}
}
protected void gvProductsList_RowDeleting(object sender, GridViewDeleteEventArgs e)
{
try
{
gvProductsList.DataSource = ViewState["Products"];
gvProductsList.DataBind();
}
catch (Exception ex)
{
}
}
If You want your upper axis to be a function of the lower axis tick-values you can do as below. Please note: sometimes get_xticks()
will have a ticks outside of the visible range, which you have to allow for when converting.
import matplotlib.pyplot as plt
fig, ax1 = plt.subplots()
ax1 = fig.add_subplot(111)
ax1.plot(range(5), range(5))
ax1.grid(True)
ax2 = ax1.twiny()
ax2.set_xticks( ax1.get_xticks() )
ax2.set_xbound(ax1.get_xbound())
ax2.set_xticklabels([x * 2 for x in ax1.get_xticks()])
title = ax1.set_title("Upper x-axis ticks are lower x-axis ticks doubled!")
title.set_y(1.1)
fig.subplots_adjust(top=0.85)
fig.savefig("1.png")
Gives:
Wow!!! 9 years of question but I've just come across a series of internal article on Windows Command Line history and I think some part of it might be relevant Windows side of the question:
For those who care about such things: Many have asked whether Windows is written in C or C++. The answer is that - despite NT's Object-Based design - like most OS', Windows is almost entirely written in 'C'. Why? C++ introduces a cost in terms of memory footprint, and code execution overhead. Even today, the hidden costs of code written in C++ can be surprising, but back in the late 1990's, when memory cost ~$60/MB (yes … $60 per MEGABYTE!), the hidden memory cost of vtables etc. was significant. In addition, the cost of virtual-method call indirection and object-dereferencing could result in very significant performance & scale penalties for C++ code at that time. While one still needs to be careful, the performance overhead of modern C++ on modern computers is much less of a concern, and is often an acceptable trade-off considering its security, readability, and maintainability benefits ... which is why we're steadily upgrading the Console’s code to modern C++.
Try devenv /setup
on the Visual Studio Command Prompt with administrative rights.
I had the same problem with Visual Studio 2013 Ultimate. I tried the solution by Reza posted here, but it didn't work.
Eventually I couldn't close Visual Studio. It was showing a similar dialog when I tried to close, and it wasn't closing. I tried this: Error message "No exports were found that match the constraint contract name". Neither.
I noticed a message in the Team Explorer window saying "Page 'somenumber' cannot be found". I tried that way, and I found this answer: Page '312e8a59-2712-48a1-863e-0ef4e67961fc' not found using Visual Studio 2012. So I run devenv /setup
on the Visual Studio Command Prompt with administrative rights.
It did the job, and everything is fine now.
It's just
$(this).val();
I think jQuery is clever enough to know what you need
The simplest way to do that is by opening the certificate store you want and then using X509Certificate2UI
.
var store = new X509Store(StoreName.My, StoreLocation.LocalMachine);
store.Open(OpenFlags.ReadOnly);
var selectedCertificate = X509Certificate2UI.SelectFromCollection(
store.Certificates,
"Title",
"MSG",
X509SelectionFlag.SingleSelection);
More information in X509Certificate2UI
on MSDN.
You can use jsoup
to parse any kind of web page. Here you can find the jsoup library and full source code.
Here is an example: http://desicoding.blogspot.com/2011/03/how-to-parse-html-in-java-jsoup.html
To install in Eclipse:
You can parse according to tag/parent/child very comfortably
I did this as an experiment to reset the value to 0 as I want my first identity column to be 0 and it's working.
dbcc CHECKIDENT(MOVIE,RESEED,0)
dbcc CHECKIDENT(MOVIE,RESEED,-1)
DBCC CHECKIDENT(MOVIE,NORESEED)
iframe doesn't have onclick event but we can implement this by using iframe's onload event and javascript like this...
function iframeclick() {
document.getElementById("theiframe").contentWindow.document.body.onclick = function() {
document.getElementById("theiframe").contentWindow.location.reload();
}
}
<iframe id="theiframe" src="youriframe.html" style="width: 100px; height: 100px;" onload="iframeclick()"></iframe>
I hope it will helpful to you....
The first thing to do would probably be to replace every mysql_*
function call with its equivalent mysqli_*
, at least if you are willing to use the procedural API -- which would be the easier way, considering you already have some code based on the MySQL API, which is a procedural one.
To help with that, the MySQLi Extension Function Summary is definitely something that will prove helpful.
For instance:
mysql_connect
will be replaced by mysqli_connect
mysql_error
will be replaced by mysqli_error
and/or mysqli_connect_error
, depending on the contextmysql_query
will be replaced by mysqli_query
Note: For some functions, you may need to check the parameters carefully: Maybe there are some differences here and there -- but not that many, I'd say: both mysql and mysqli are based on the same library (libmysql ; at least for PHP <= 5.2)
For instance:
mysql_select_db
once connected, to indicate on which database you want to do your queriesmysqli_connect
.mysqli_select_db
function that you can use, if you prefer.There are two problems with your attempt.
First, you've used n+1
instead of i+1
, so you're going to return something like [5, 5, 5, 5]
instead of [1, 2, 3, 4]
.
Second, you can't for
-loop over a number like n
, you need to loop over some kind of sequence, like range(n)
.
So:
def naturalNumbers(n):
return [i+1 for i in range(n)]
But if you already have the range
function, you don't need this at all; you can just return range(1, n+1)
, as arshaji showed.
So, how would you build this yourself? You don't have a sequence to loop over, so instead of for
, you have to build it yourself with while
:
def naturalNumbers(n):
results = []
i = 1
while i <= n:
results.append(i)
i += 1
return results
Of course in real-life code, you should always use for
with a range
, instead of doing things manually. In fact, even for this exercise, it might be better to write your own range
function first, just to use it for naturalNumbers
. (It's already pretty close.)
There is one more option, if you want to get clever.
If you have a list, you can slice it. For example, the first 5 elements of my_list
are my_list[:5]
. So, if you had an infinitely-long list starting with 1
, that would be easy. Unfortunately, you can't have an infinitely-long list… but you can have an iterator that simulates one very easily, either by using count
or by writing your own 2-liner equivalent. And, while you can't slice an iterator, you can do the equivalent with islice
. So:
from itertools import count, islice
def naturalNumbers(n):
return list(islice(count(1), n))
I found a straight forward way of solving this, with the use of JSON.parse.
Let's assume the json below is inside the variable jsontext.
[
["Blankaholm", "Gamleby"],
["2012-10-23", "2012-10-22"],
["Blankaholm. Under natten har det varit inbrott", "E22 i med Gamleby. Singelolycka. En bilist har.],
["57.586174","16.521841"], ["57.893162","16.406090"]
]
The solution is this:
var parsedData = JSON.parse(jsontext);
Now I can access the elements the following way:
var cities = parsedData[0];
To summarize and complement the existing answers:
python.exe
is a console (terminal) application for launching CLI-type scripts.
python.exe
opens a new console window.sys.stdin
, sys.stdout
and sys.stderr
are connected to the console window.Execution is synchronous when launched from a cmd.exe
or PowerShell console window: See eryksun's 1st comment below.
pythonw.exe
is a GUI app for launching GUI/no-UI-at-all scripts.
sys.stdin
, sys.stdout
and sys.stderr
are NOT available.
print()
can cause that to happen (in 3.x, print()
simply has no effect).pythonw.exe yourScript.pyw 1>stdout.txt 2>stderr.txt
cmd /c pythonw.exe yourScript.pyw 1>stdout.txt 2>stderr.txt
) to capture stdout and stderr output in files.print()
is the only reason your script fails silently with pythonw.exe
, and you're not interested in stdout output, use @handle's command from the comments:pythonw.exe yourScript.pyw 1>NUL 2>&1
*.pyw
scripts directly (as opposed to by passing the script file path to pythonw.exe
). See eryksun's 2nd comment and its follow-ups below.You can control which of the executables runs your script by default - such as when opened from Explorer - by choosing the right filename extension:
*.py
files are by default associated (invoked) with python.exe
*.pyw
files are by default associated (invoked) with pythonw.exe
function truncateString(str, length) {
return str.length > length ? str.substring(0, length - 3) + '...' : str
}
Install GD Library
Which OS you are using?
http://php.net/manual/en/image.installation.php
Windows http://www.dmxzone.com/go/5001/how-do-i-install-gd-in-windows/
Linux http://www.cyberciti.biz/faq/ubuntu-linux-install-or-add-php-gd-support-to-apache/
Here is a crude way to do it: Transform JSON into bash
variables to eval
them.
This only works for:
Well, yes, it uses PERL to do this job, thanks to CPAN, but is small enough for inclusion directly into a script and hence is quick and easy to debug:
json2bash() {
perl -MJSON -0777 -n -E 'sub J {
my ($p,$v) = @_; my $r = ref $v;
if ($r eq "HASH") { J("${p}_$_", $v->{$_}) for keys %$v; }
elsif ($r eq "ARRAY") { $n = 0; J("$p"."[".$n++."]", $_) foreach @$v; }
else { $v =~ '"s/'/'\\\\''/g"'; $p =~ s/^([^[]*)\[([0-9]*)\](.+)$/$1$3\[$2\]/;
$p =~ tr/-/_/; $p =~ tr/A-Za-z0-9_[]//cd; say "$p='\''$v'\'';"; }
}; J("json", decode_json($_));'
}
use it like eval "$(json2bash <<<'{"a":["b","c"]}')"
Not heavily tested, though. Updates, warnings and more examples see my GIST.
(Unfortunately, following is a link-only-solution, as the C code is far too long to duplicate here.)
For all those, who do not like the above solution,
there now is a C program json2sh
which (hopefully safely) converts JSON into shell variables.
In contrast to the perl
snippet, it is able to process any JSON,
as long as it is well formed.
Caveats:
json2sh
was not tested much.json2sh
may create variables, which start with the shellshock pattern () {
I wrote json2sh
to be able to post-process .bson
with Shell:
bson2json()
{
printf '[';
{ bsondump "$1"; echo "\"END$?\""; } | sed '/^{/s/$/,/';
echo ']';
};
bsons2json()
{
printf '{';
c='';
for a;
do
printf '%s"%q":' "$c" "$a";
c=',';
bson2json "$a";
done;
echo '}';
};
bsons2json */*.bson | json2sh | ..
Explained:
bson2json
dumps a .bson
file such, that the records become a JSON array
END0
-Marker is applied, else you will see something like END1
.END
-Marker is needed, else empty .bson
files would not show up.bsons2json
dumps a bunch of .bson
files as an object, where the output of bson2json
is indexed by the filename.This then is postprocessed by json2sh
, such that you can use grep
/source
/eval
/etc. what you need, to bring the values into the shell.
This way you can quickly process the contents of a MongoDB dump on shell level, without need to import it into MongoDB first.
The best way to modify a Hash's values in place is
hash.update(hash){ |_,v| "%#{v}%" }
Less code and clear intent. Also faster because no new objects are allocated beyond the values that must be changed.
This is The Simplest Method to get both Filename & Extension in just a single line.
fName, ext = 'C:/folder name/Flower.jpeg'.split('/')[-1].split('.')
>>> print(fName)
Flower
>>> print(ext)
jpeg
Unlike other solutions, you don't need to import any package for this.
Here how to do this on mongodb 3.0. I used this nice blog
$ mkdir RANDOM_PATH/node1 $ mkdir RANDOM_PATH/node2> $ mkdir RANDOM_PATH/node3
$ mongod --replSet test --port 27021 --dbpath node1 $ mongod --replSet test --port 27022 --dbpath node2 $ mongod --replSet test --port 27023 --dbpath node3
$ mongo config = {_id: 'test', members: [ {_id: 0, host: 'localhost:27021'}, {_id: 1, host: 'localhost:27022'}]}; rs.initiate(config);
a. Download and unzip the [latest Elasticsearch][2] distribution b. Run bin/elasticsearch to start the es server. c. Run curl -XGET http://localhost:9200/ to confirm it is working.
$ bin/plugin --install com.github.richardwilly98.elasticsearch/elasticsearch-river-mongodb
$ bin/plugin --install elasticsearch/elasticsearch-mapper-attachments
curl -XPUT 'http://localhost:8080/_river/mongodb/_meta' -d '{ "type": "mongodb", "mongodb": { "db": "mydb", "collection": "foo" }, "index": { "name": "name", "type": "random" } }'
Test on browser:
Ideally these would go in a class called "FileNaming" or maybe just rename Encode to "FileNameEncode". Note: these are not designed to handle Full Paths, just the folder and/or file names. Ideally you would Split("/") your full path first and then check the pieces. And obviously instead of a union, you could just add the "%" character to the list of chars not allowed in Windows, but I think it's more helpful/readable/factual this way. Decode() is exactly the same but switches the Replace(Uri.HexEscape(s[0]), s) "escaped" with the character.
public static List<string> urlEncodedCharacters = new List<string>
{
"/", "\\", "<", ">", ":", "\"", "|", "?", "%" //and others, but not *
};
//Since this is a superset of urlEncodedCharacters, we won't be able to only use UrlEncode() - instead we'll use HexEncode
public static List<string> specialCharactersNotAllowedInWindows = new List<string>
{
"/", "\\", "<", ">", ":", "\"", "|", "?", "*" //windows dissallowed character set
};
public static string Encode(string fileName)
{
//CheckForFullPath(fileName); // optional: make sure it's not a path?
List<string> charactersToChange = new List<string>(specialCharactersNotAllowedInWindows);
charactersToChange.AddRange(urlEncodedCharacters.
Where(x => !urlEncodedCharacters.Union(specialCharactersNotAllowedInWindows).Contains(x))); // add any non duplicates (%)
charactersToChange.ForEach(s => fileName = fileName.Replace(s, Uri.HexEscape(s[0]))); // "?" => "%3f"
return fileName;
}
Thanks @simon-tewsi for the very usefull table above!
Rather than create 2 temporary dfs you can just pass these as params within a dict using the DataFrame constructor:
pd.DataFrame({'email':sf.index, 'list':sf.values})
There are lots of ways to construct a df, see the docs
All modern browsers support a JavaScript Map object. There are a couple of reasons that make using a Map better than Object:
- An Object has a prototype, so there are default keys in the map.
- The keys of an Object are Strings, where they can be any value for a Map.
- You can get the size of a Map easily while you have to keep track of size for an Object.
Example:
var myMap = new Map();
var keyObj = {},
keyFunc = function () {},
keyString = "a string";
myMap.set(keyString, "value associated with 'a string'");
myMap.set(keyObj, "value associated with keyObj");
myMap.set(keyFunc, "value associated with keyFunc");
myMap.size; // 3
myMap.get(keyString); // "value associated with 'a string'"
myMap.get(keyObj); // "value associated with keyObj"
myMap.get(keyFunc); // "value associated with keyFunc"
If you want keys that are not referenced from other objects to be garbage collected, consider using a WeakMap instead of a Map.
You might need to allow different combinations of data in your intent filter to get it to work in different cases (http/
vs https/
, www.
vs no www.
, etc).
For example, I had to do the following for an app which would open when the user opened a link to Google Drive forms (www.docs.google.com/forms
)
Note that path prefix is optional.
<intent-filter>
<action android:name="android.intent.action.VIEW" />
<category android:name="android.intent.category.DEFAULT" />
<category android:name="android.intent.category.BROWSABLE" />
<data android:scheme="http" />
<data android:scheme="https" />
<data android:host="www.docs.google.com" />
<data android:host="docs.google.com" />
<data android:pathPrefix="/forms" />
</intent-filter>
the problem is because you have got the query over multiple lines using the " " that PHP is actually sending all the white spaces in to MySQL which is causing it to error out.
Either put it on one line or append on each line :o)
Sqlyog must be trimming white spaces on each line which explains why its working.
Example:
$qr2="INSERT INTO wp_bp_activity
(
user_id,
(this stuff)component,
(is) `type`,
(a) `action`,
(problem) content,
primary_link,
item_id,....
As for the testing, you should use from Spring 4.1 which will overwrite the properties defined in other places:
@TestPropertySource("classpath:application-test.properties")
Test property sources have higher precedence than those loaded from the operating system's environment or Java system properties as well as property sources added by the application like @PropertySource