The cross browser way to do is to use childNodes
to get NodeList
, then make an array of all nodes with nodeType
ELEMENT_NODE.
/**
* Return direct children elements.
*
* @param {HTMLElement}
* @return {Array}
*/
function elementChildren (element) {
var childNodes = element.childNodes,
children = [],
i = childNodes.length;
while (i--) {
if (childNodes[i].nodeType == 1) {
children.unshift(childNodes[i]);
}
}
return children;
}
This is especially easy if you are using a utility library such as lodash:
/**
* Return direct children elements.
*
* @param {HTMLElement}
* @return {Array}
*/
function elementChildren (element) {
return _.where(element.childNodes, {nodeType: 1});
}
Future:
You can use querySelectorAll
in combination with :scope
pseudo-class (matches the element that is the reference point of the selector):
parentElement.querySelectorAll(':scope > *');
At the time of writing this :scope
is supported in Chrome, Firefox and Safari.
Here is a functional ES6 way of iterating over a NodeList
. This method uses the Array
's forEach
like so:
Array.prototype.forEach.call(element.childNodes, f)
Where f
is the iterator function that receives a child nodes as it's first parameter and the index as the second.
If you need to iterate over NodeLists more than once you could create a small functional utility method out of this:
const forEach = f => x => Array.prototype.forEach.call(x, f);
// For example, to log all child nodes
forEach((item) => { console.log(item); })(element.childNodes)
// The functional forEach is handy as you can easily created curried functions
const logChildren = forEach((childNode) => { console.log(childNode); })
logChildren(elementA.childNodes)
logChildren(elementB.childNodes)
(You can do the same trick for map()
and other Array functions.)
var column1RelArray = [];
$('#column1 li').each(function(){
column1RelArray.push($(this).attr('rel'));
});
or fp style
var column1RelArray = $('#column1 li').map(function(){
return $(this).attr('rel');
});
Try with: $('.onediv').eq(0)
From the demo: Other examples of selectors and methods targeting the first LI
unside an UL
:
.eq()
Method:$('li').eq(0)
:eq()
selector:$('li:eq(0)')
.first()
Method$('li').first()
:first
selector:$('li:first')
:first-child
selector:$('li:first-child')
:lt()
selector:$('li:lt(1)')
:nth-child()
selector:$('li:nth-child(1)')
jQ + JS:
you can also use [i]
to get the JS HTMLelement
index out of the jQuery el. (array) collection like eg:
$('li')[0]
now that you have the JS element representation you have to use JS native methods eg:
$('li')[0].className = 'active'; // Adds class "active" to the first LI in the DOM
or you can (don't - it's bad design) wrap it back into a jQuery object
$( $('li')[0] ).addClass('active'); // Don't. Use .eq() instead
In the click event "this" is the a tag that was clicked
jQuery('.class1 a').click( function() {
var divToSlide = $(this).parent().find(".class2");
if (divToSlide.is(":hidden")) {
divToSlide.slideDown("slow");
} else {
divToSlide.slideUp();
}
});
There's multiple ways to get to the div though you could also use .siblings, .next etc
You could consider using CSS clip: rect(top, right, bottom, left);
to clip a fixed positioned element to a parent. See demo at http://jsfiddle.net/lmeurs/jf3t0fmf/.
Beware, use with care!
Though the clip style is widely supported, main disadvantages are that:
auto
value equals 100%
, ie. clip: rect(auto, auto, auto, auto);
;See http://tympanus.net/codrops/2013/01/16/understanding-the-css-clip-property/ for more info.
EDIT: Chrome seems to handle positioning of and CSS3 transforms on child elements a lot better when applying backface-visibility, so just to be sure we added:
-webkit-backface-visibility: hidden;
-moz-backface-visibility: hidden;
backface-visibility: hidden;
to the main child element.
Also note that it's not fully supported by older / mobile browsers or it might take some extra effort. See our implementation for the menu at bellafuchsia.com.
EDIT 2014-11-02: Demo URL has been updated.
if ( $('#myfav').children().length > 0 ) {
// do something
}
This should work. The children()
function returns a JQuery object that contains the children. So you just need to check the size and see if it has at least one child.
For the 24-hour time, you need to use HH24
instead of HH
.
For the 12-hour time, the AM/PM indicator is written as A.M.
(if you want periods in the result) or AM
(if you don't). For example:
SELECT invoice_date,
TO_CHAR(invoice_date, 'DD-MM-YYYY HH24:MI:SS') "Date 24Hr",
TO_CHAR(invoice_date, 'DD-MM-YYYY HH:MI:SS AM') "Date 12Hr"
FROM invoices
;
For more information on the format models you can use with TO_CHAR
on a date, see http://docs.oracle.com/cd/E16655_01/server.121/e17750/ch4datetime.htm#NLSPG004.
You have mentioned Wrong id
alert(document.getElementById("name").value);
if you want to use name
attribute then
alert(document.getElementsByName("username")[0].value);
Updates:
input type="text" id="name" name="username"
id is different from name
So, I've found a solution for what I'm looking for, which is:
print open('f2').read().decode('string-escape').decode("utf-8")
There are some unusual codecs that are useful here. This particular reading allows one to take UTF-8 representations from within Python, copy them into an ASCII file, and have them be read in to Unicode. Under the "string-escape" decode, the slashes won't be doubled.
This allows for the sort of round trip that I was imagining.
I had a similar error with Tomcat 8.0 / MySQL . Changing the jdbc url value from localhost to 127.0.0.1 resolved the issue.
PHP was not designed to explicitly give you a pure REST (GET, POST, PUT, PATCH, DELETE) like interface for handling HTTP requests.
However, the $_SERVER
, $_COOKIE
, $_POST
, $_GET
, and $_FILES
superglobals, and the function filter_input_array()
are very useful for the average person's / layman's needs.
The number one hidden advantage of $_POST
(and $_GET
) is that your input data is url-decoded automatically by PHP. You never even think about having to do it, especially for query string parameters within a standard GET
request, or HTTP body data submitted with a POST
request.
Those studying the underlying HTTP protocol and its various request methods come to understand that there are many HTTP request methods, including the often referenced PUT
, PATCH
(not used in Google's Apigee), and DELETE
.
In PHP, there are no superglobals or input filter functions for getting HTTP request body data when POST
is not used. What are disciples of Roy Fielding to do? ;-)
That being said, as you advance in your PHP programming knowledge and want to use JavaScript's XmlHttpRequest
object (jQuery for some), you come to see the limitation of this scheme.
$_POST
limits you to the use of two media types in the HTTP Content-Type
header:
application/x-www-form-urlencoded
, andmultipart/form-data
Thus, if you want to send data values to PHP on the server, and have it show up in the $_POST
superglobal, then you must urlencode it on the client-side and send said data as key/value pairs--an inconvenient step for novices (especially when trying to figure out if different parts of the URL require different forms of urlencoding: normal, raw, etc..).
For all you jQuery users, the $.ajax()
method is converting your JSON to URL encoded key/value pairs before transmitting them to the server. You can override this behavior by setting processData: false
. Just read the $.ajax() documentation, and don't forget to send the correct media type in the Content-Type header.
Even if you use php://input
instead of $_POST
for your HTTP POST
request body data, it will not work with an HTTP Content-Type
of multipart/form-data
This is the content type that you use on an HTML form when you want to allow file uploads!
<form enctype="multipart/form-data" accept-charset="utf-8" action="post">
<input type="file" name="resume">
</form>
Therefore, in traditional PHP, to deal with a diversity of content types from an HTTP POST
request, you will learn to use $_POST
or filter_input_array(POST)
, $_FILES
, and php://input
. There is no way to just use one, universal input source for HTTP POST
requests in PHP.
You cannot get files through $_POST
, filter_input_array(POST), or php://input
, and you cannot get JSON/XML/YAML in either filter_input_array(POST)
or $_POST
.
php://input is a read-only stream that allows you to read raw data from the request body...php://input is not available with enctype="multipart/form-data".
PHP frameworks like Codeigniter 4 and Laravel use a facade to provide a cleaner interface (IncomingRequest
or Request
objects) to the above. This is why professional PHP developers use frameworks instead of raw PHP.
Of course, if you like to program, you can devise your own facade object to provide what frameworks do. It is because I have taken time to investigate this issue that I am able to write this answer.
Typically, if you are doing a normal, synchronous (when the entire page redraws) HTTP requests with an HTML form, the user-agent (web browser) will urlencode your form data for you. If you want to do an asynchronous HTTP requests using the XmlHttpRequest
object, then you must fashion a urlencoded string and send it, if you want that data to show up in the $_POST
superglobal.
Converting from a JavaScript array or object to a urlencoded string bothers many developers (even with new APIs like Form Data). They would much rather just be able to send JSON, and it would be more efficient for the client code to do so.
Remember (wink, wink), the average web developer does not learn to use the XmlHttpRequest
object directly, global functions, string functions, array functions, and regular expressions like you and I ;-). Urlencoding for them is a nightmare. ;-)
PHP's lack of intuitive XML and JSON handling turns many people off. You would think it would be part of PHP by now (sigh).
XML, JSON, and YAML all have media types that can be put into an HTTP Content-Type
header.
Look how many media-types (formerly, MIME types) are defined by IANA.
Look how many HTTP headers there are.
Using the php://input
stream allows you to circumvent the baby-sitting / hand holding level of abstraction that PHP has forced on the world. :-) With great power comes great responsibility!
Now, before you deal with data values streamed through php://input
, you should / must do a few things.
AH, HA! Yes, you might want the data stream being sent into your application to be UTF-8 encoded, but how can you know if it is or not?
php://input
.Are you going to attempt to handle stream data without knowing how much is there first? That is a terrible idea. You cannot rely exclusively on the HTTP Content-Length
header for guidance on the size of streamed input because it can be spoofed.
You are going to need a:
Are you going to attempt to convert stream data to UTF-8 without knowing the current encoding of the stream? How? The iconv stream filter (iconv stream filter example) seems to want a starting and ending encoding, like this.
'convert.iconv.ISO-8859-1/UTF-8'
Thus, if you are conscientious, you will need:
(Update: 'convert.iconv.UTF-8/UTF-8'
will force everything to UTF-8, but you still have to account for characters that the iconv library might not know how to translate. In other words, you have to some how define what action to take when a character cannot be translated: 1) Insert a dummy character, 2) Fail / throw and exception).
You cannot rely exclusively on the HTTP Content-Encoding
header, as this might indicate something like compression as in the following. This is not what you want to make a decision off of in regards to iconv.
Content-Encoding: gzip
Part I: HTTP Request Related
Part II: Stream Data Related
Part III: Data Type Related
(Remember, the data can still be a URL encoded string which you must then parse and URL decode).
Part IV: Data Value Related
Filter input data.
Validate input data.
The $_POST
superglobal, along with php.ini settings for limits on input, are simpler for the layman. However, dealing with character encoding is much more intuitive and efficient when using streams because there is no need to loop through superglobals (or arrays, generally) to check input values for the proper encoding.
With ES2017 async/await
support, this is how to POST
a JSON payload:
(async () => {_x000D_
const rawResponse = await fetch('https://httpbin.org/post', {_x000D_
method: 'POST',_x000D_
headers: {_x000D_
'Accept': 'application/json',_x000D_
'Content-Type': 'application/json'_x000D_
},_x000D_
body: JSON.stringify({a: 1, b: 'Textual content'})_x000D_
});_x000D_
const content = await rawResponse.json();_x000D_
_x000D_
console.log(content);_x000D_
})();
_x000D_
Can't use ES2017? See @vp_art's answer using promises
The question however is asking for an issue caused by a long since fixed chrome bug.
Original answer follows.
chrome devtools doesn't even show the JSON as part of the request
This is the real issue here, and it's a bug with chrome devtools, fixed in Chrome 46.
That code works fine - it is POSTing the JSON correctly, it just cannot be seen.
I'd expect to see the object I've sent back
that's not working because that is not the correct format for JSfiddle's echo.
The correct code is:
var payload = {
a: 1,
b: 2
};
var data = new FormData();
data.append( "json", JSON.stringify( payload ) );
fetch("/echo/json/",
{
method: "POST",
body: data
})
.then(function(res){ return res.json(); })
.then(function(data){ alert( JSON.stringify( data ) ) })
For endpoints accepting JSON payloads, the original code is correct
Especially for non-UTC timezones:
The only timezone that has its own method is timezone.utc
, but you can fudge a timezone with any UTC offset if you need to by using timedelta
& timezone
, and forcing it using .replace
.
In [1]: from datetime import datetime, timezone, timedelta
In [2]: def force_timezone(dt, utc_offset=0):
...: return dt.replace(tzinfo=timezone(timedelta(hours=utc_offset)))
...:
In [3]: dt = datetime(2011,8,15,8,15,12,0)
In [4]: str(dt)
Out[4]: '2011-08-15 08:15:12'
In [5]: str(force_timezone(dt, -8))
Out[5]: '2011-08-15 08:15:12-08:00'
Using timezone(timedelta(hours=n))
as the time zone is the real silver bullet here, and it has lots of other useful applications.
Try this code
Microsoft.Office.Interop.Excel.Application oXL;
Microsoft.Office.Interop.Excel._Workbook oWB;
Microsoft.Office.Interop.Excel._Worksheet oSheet;
Microsoft.Office.Interop.Excel.Range oRng;
object misvalue = System.Reflection.Missing.Value;
try
{
//Start Excel and get Application object.
oXL = new Microsoft.Office.Interop.Excel.Application();
oXL.Visible = true;
//Get a new workbook.
oWB = (Microsoft.Office.Interop.Excel._Workbook)(oXL.Workbooks.Add(""));
oSheet = (Microsoft.Office.Interop.Excel._Worksheet)oWB.ActiveSheet;
//Add table headers going cell by cell.
oSheet.Cells[1, 1] = "First Name";
oSheet.Cells[1, 2] = "Last Name";
oSheet.Cells[1, 3] = "Full Name";
oSheet.Cells[1, 4] = "Salary";
//Format A1:D1 as bold, vertical alignment = center.
oSheet.get_Range("A1", "D1").Font.Bold = true;
oSheet.get_Range("A1", "D1").VerticalAlignment =
Microsoft.Office.Interop.Excel.XlVAlign.xlVAlignCenter;
// Create an array to multiple values at once.
string[,] saNames = new string[5, 2];
saNames[0, 0] = "John";
saNames[0, 1] = "Smith";
saNames[1, 0] = "Tom";
saNames[4, 1] = "Johnson";
//Fill A2:B6 with an array of values (First and Last Names).
oSheet.get_Range("A2", "B6").Value2 = saNames;
//Fill C2:C6 with a relative formula (=A2 & " " & B2).
oRng = oSheet.get_Range("C2", "C6");
oRng.Formula = "=A2 & \" \" & B2";
//Fill D2:D6 with a formula(=RAND()*100000) and apply format.
oRng = oSheet.get_Range("D2", "D6");
oRng.Formula = "=RAND()*100000";
oRng.NumberFormat = "$0.00";
//AutoFit columns A:D.
oRng = oSheet.get_Range("A1", "D1");
oRng.EntireColumn.AutoFit();
oXL.Visible = false;
oXL.UserControl = false;
oWB.SaveAs("c:\\test\\test505.xls", Microsoft.Office.Interop.Excel.XlFileFormat.xlWorkbookDefault, Type.Missing, Type.Missing,
false, false, Microsoft.Office.Interop.Excel.XlSaveAsAccessMode.xlNoChange,
Type.Missing, Type.Missing, Type.Missing, Type.Missing, Type.Missing);
oWB.Close();
oXL.Quit();
//...
I think the question is a bit confusing.
If you mean "can foreign key 'refer' to a primary key in the same table?", the answer is a firm yes as some replied. For example, in an employee table, a row for an employee may have a column for storing manager's employee number where the manager is also an employee and hence will have a row in the table like a row of any other employee.
If you mean "can column(or set of columns) be a primary key as well as a foreign key in the same table?", the answer, in my view, is a no; it seems meaningless. However, the following definition succeeds in SQL Server!
create table t1(c1 int not null primary key foreign key references t1(c1))
But I think it is meaningless to have such a constraint unless somebody comes up with a practical example.
AmanS, in your example d_id in no circumstance can be a primary key in Employee table. A table can have only one primary key. I hope this clears your doubt. d_id is/can be a primary key only in department table.
Your Action is expecting string parameters, but you're sending a composite object.
You need to create an object that matches what you're sending.
public class Data
{
public string username { get;set; }
public string password { get;set; }
}
public JsonResult Login(Data data)
{
}
EDIT
In addition, toStringify() is probably not what you want here. Just send the object itself.
data: data,
Contanis occur if using the method of the present letter, and store the corresponding number using the IndexOf method, see example below.
Private Sub Button1_Click(sender As System.Object, e As System.EventArgs) Handles Button1.Click
Dim myString As String = "abcdef"
Dim numberString As String = String.Empty
If myString.Contains("d") Then
numberString = myString.IndexOf("d")
End If
End Sub
Another sample with TextBox
Private Sub Button1_Click(sender As System.Object, e As System.EventArgs) Handles Button1.Click
Dim myString As String = "abcdef"
Dim numberString As String = String.Empty
If myString.Contains(me.TextBox1.Text) Then
numberString = myString.IndexOf(Me.TextBox1.Text)
End If
End Sub
Regards
What I have just experiment with VS diagnostic tools is I called this.Close() then formclosing event triggered. Then When I call this.Dispose() at the end in Formclosing event where I dispose many other objects in it, it cleans everything much much smoother.
here is the full program to make a POST rest call using spring's RestTemplate.
import java.util.HashMap;
import java.util.Map;
import org.springframework.http.HttpEntity;
import org.springframework.http.ResponseEntity;
import org.springframework.util.LinkedMultiValueMap;
import org.springframework.util.MultiValueMap;
import org.springframework.web.client.RestTemplate;
import com.ituple.common.dto.ServiceResponse;
public class PostRequestMain {
public static void main(String[] args) {
// TODO Auto-generated method stub
MultiValueMap<String, String> headers = new LinkedMultiValueMap<String, String>();
Map map = new HashMap<String, String>();
map.put("Content-Type", "application/json");
headers.setAll(map);
Map req_payload = new HashMap();
req_payload.put("name", "piyush");
HttpEntity<?> request = new HttpEntity<>(req_payload, headers);
String url = "http://localhost:8080/xxx/xxx/";
ResponseEntity<?> response = new RestTemplate().postForEntity(url, request, String.class);
ServiceResponse entityResponse = (ServiceResponse) response.getBody();
System.out.println(entityResponse.getData());
}
}
Here is an answer for your question:
Move your code to below method because navigation bar title updated after view loaded. I tried adding above code in viewDidLoad doesn't work, it works fine in viewDidAppear method.
-(void)viewDidAppear:(BOOL)animated{}
The Host
Header tells the webserver which virtual host to use (if set up). You can even have the same virtual host using several aliases (= domains and wildcard-domains). In this case, you still have the possibility to read that header manually in your web app if you want to provide different behavior based on different domains addressed. This is possible because in your webserver you can (and if I'm not mistaken you must) set up one vhost to be the default host. This default vhost is used whenever the host
header does not match any of the configured virtual hosts.
That means: You get it right, although saying "multiple hosts" may be somewhat misleading: The host (the addressed machine) is the same, what really gets resolved to the IP address are different domain names (including subdomains) that are also referred to as hostnames (but not hosts!).
Although not part of the question, a fun fact: This specification led to problems with SSL in early days because the web server has to deliver the certificate that corresponds to the domain the client has addressed. However, in order to know what certificate to use, the webserver should have known the addressed hostname in advance. But because the client sends that information only over the encrypted channel (which means: after the certificate has already been sent), the server had to assume you browsed the default host. That meant one ssl-secured domain per IP address / port-combination.
This has been overcome with Server Name Indication; however, that again breaks some privacy, as the server name is now transferred in plain text again, so every man-in-the-middle would see which hostname you are trying to connect to.
Although the webserver would know the hostname from Server Name Indication, the Host
header is not obsolete, because the Server Name Indication information is only used within the TLS handshake. With an unsecured connection, there is no Server Name Indication at all, so the Host
header is still valid (and necessary).
Another fun fact: Most webservers (if not all) reject your HTTP request if it does not contain exactly one Host
header, even if it could be omitted because there is only the default vhost configured. That means the minimum required information in an http-(get-)request is the first line containing METHOD
RESOURCE
and PROTOCOL VERSION
and at least the Host
header, like this:
GET /someresource.html HTTP/1.1
Host: www.example.com
In the MDN Documentation on the "Host" header they actually phrase it like this:
A Host header field must be sent in all HTTP/1.1 request messages. A 400 (Bad Request) status code will be sent to any HTTP/1.1 request message that lacks a Host header field or contains more than one.
As mentioned by Darrel Miller, the complete specs can be found in RFC7230.
I would add this to the LI's CSS
.list-item
{
float: left;
clear: left;
}
hey all...i had a similar problem with my cms system. i needed a hard path for some security aspects. think the best way is like rob wrote. for quick an dirty coding think this works also..:-)
<?php
$path = getcwd();
$myfile = "/test.inc.php";
/*
getcwd () points to: /usr/srv/apache/htdocs/myworkingdir (as example)
echo ($path.$myfile);
would return...
/usr/srv/apache/htdocs/myworkingdir/test.inc.php
access outside your working directory is not allowed.
*/
includ_once ($path.$myfile);
//some code
?>
nice day strtok
Go to: Settings
> Preferences
> Backup
> and Uncheck Remember current session for next launch
In older versions (6.5-), this option is located on Settings
> Preferences
> MISC
.
Just combine them. I think this should work but it's untested:
p <- ggplot(visual1, aes(ISSUE_DATE,COUNTED)) + geom_point() +
geom_smooth(fill="blue", colour="darkblue", size=1)
p <- p + geom_point(data=visual2, aes(ISSUE_DATE,COUNTED)) +
geom_smooth(data=visual2, fill="red", colour="red", size=1)
print(p)
I have tried every method mentioned above and nothing worked, except installing jupyter in the new environment.
to activate the new environment
conda activate new_env
replace 'new_env' with your environment name.
next install jupyter 'pip install jupyter'
you can also install jupyter by going to anaconda navigator and selecting the right environment, and installing jupyter notebook from Home tab
In my case, the caller calls too many times in short time will get this error, I simply put elapsed time checking to do nothing if too short, e.g. ignore if function get called less than 0.5 second:
private long mLastClickTime = 0;
public boolean foo() {
if ( (SystemClock.elapsedRealtime() - mLastClickTime) < 500) {
return false;
}
mLastClickTime = SystemClock.elapsedRealtime();
//... do ui update
}
It's worth to mention that CLOB / BLOB data types and their sizes are supported by MySQL 5.0+, so you can choose the proper data type for your need.
http://dev.mysql.com/doc/refman/5.7/en/storage-requirements.html
Data Type Date Type Storage Required
(CLOB) (BLOB)
TINYTEXT TINYBLOB L + 1 bytes, where L < 2**8 (255)
TEXT BLOB L + 2 bytes, where L < 2**16 (64 K)
MEDIUMTEXT MEDIUMBLOB L + 3 bytes, where L < 2**24 (16 MB)
LONGTEXT LONGBLOB L + 4 bytes, where L < 2**32 (4 GB)
where L stands for the byte length of a string
For my answer, it is worth remembering that the TPL (Task-Parallel-Library), Task
class and TaskStatus
enumeration were introduced prior to the async-await keywords and the async-await keywords were not the original motivation of the TPL.
In the context of methods marked as async
, the resulting Task
is not a Task
representing the execution of the method, but a Task
for the continuation of the method.
This is only able to make use of a few possible states:
I understand that Running
could appear to have been a better default than WaitingForActivation
, however this could be misleading, as the majority of the time, an async method being executed is not actually running (i.e. it may be await
-ing something else). The other option may have been to add a new value to TaskStatus
, however this could have been a breaking change for existing applications and libraries.
All of this is very different to when making use of Task.Run
which is a part of the original TPL, this is able to make use of all the possible values of the TaskStatus
enumeration.
If you wish to keep track of the status of an async method, take a look at the IProgress(T)
interface, this will allow you to report the ongoing progress. This blog post, Async in 4.5: Enabling Progress and Cancellation in Async APIs will provide further information on the use of the IProgress(T)
interface.
You need to use something like this:
OracleCommand oraCommand = new OracleCommand("SELECT fullname FROM sup_sys.user_profile
WHERE domain_user_name = :userName", db);
More can be found in this MSDN article: http://msdn.microsoft.com/en-us/library/system.data.oracleclient.oraclecommand.parameters%28v=vs.100%29.aspx
It is advised you use the : character instead of @ for Oracle.
It's also useful for polyglot programs:
#!/usr/bin/env sh
':' //; exec "$(command -v node)" "$0" "$@"
~function(){ ... }
This is now both an executable shell-script and a JavaScript program: meaning ./filename.js
, sh filename.js
, and node filename.js
all work.
(Definitely a little bit of a strange usage, but effective nonetheless.)
Some explication, as requested:
Shell-scripts are evaluated line-by-line; and the exec
command, when run, terminates the shell and replaces it's process with the resultant command. This means that to the shell, the program looks like this:
#!/usr/bin/env sh
':' //; exec "$(command -v node)" "$0" "$@"
As long as no parameter expansion or aliasing is occurring in the word, any word in a shell-script can be wrapped in quotes without changing its' meaning; this means that ':'
is equivalent to :
(we've only wrapped it in quotes here to achieve the JavaScript semantics described below)
... and as described above, the first command on the first line is a no-op (it translates to : //
, or if you prefer to quote the words, ':' '//'
. Notice that the //
carries no special meaning here, as it does in JavaScript; it's just a meaningless word that's being thrown away.)
Finally, the second command on the first line (after the semicolon), is the real meat of the program: it's the exec
call which replaces the shell-script being invoked, with a Node.js process invoked to evaluate the rest of the script.
Meanwhile, the first line, in JavaScript, parses as a string-literal (':'
), and then a comment, which is deleted; thus, to JavaScript, the program looks like this:
':'
~function(){ ... }
Since the string-literal is on a line by itself, it is a no-op statement, and is thus stripped from the program; that means that the entire line is removed, leaving only your program-code (in this example, the function(){ ... }
body.)
This is a simplified variant of Dejan Marjanovic's answer:
function removeTags($html, $tag) {
$dom = new DOMDocument();
$dom->loadHTML($html);
foreach (iterator_to_array($dom->getElementsByTagName($tag)) as $item) {
$item->parentNode->removeChild($item);
}
return $dom->saveHTML();
}
Can be used to remove any kind of tag, including <script>
:
$scriptlessHtml = removeTags($html, 'script');
you can get filename by uri with simple way
fun get_filename_by_uri(uri : Uri) : String{
contentResolver.query(uri, null, null, null, null).use { cursor ->
cursor?.let {
val nameIndex = it.getColumnIndex(OpenableColumns.DISPLAY_NAME)
it.moveToFirst()
return it.getString(nameIndex)
}
}
return ""
}
and easy to read it by using
contentResolver.openInputStream(uri)
Previous answers are correct but here is one more way of doing this and some tips:
Option #1 Go to you Jenkins job and search for "add build step" and then just copy and paste your script there
Option #2 Go to Jenkins and do the same again "add build step" but this time put the fully qualified path for your script in there example : ./usr/somewhere/helloWorld.sh
things to watch for /tips:
distinct
is not a function. It always operates on all columns of the select list.
Your problem is a typical "greatest N per group" problem which can easily be solved using a window function:
select ...
from (
select IDNo,
FirstName,
LastName,
....,
row_number() over (partition by lower(idno) order by firstname) as rn
from people
) t
where rn = 1;
Using the order by
clause you can select which of the duplicates you want to pick.
The above can be used in a left join, see below:
select ...
from x
left join (
select IDNo,
FirstName,
LastName,
....,
row_number() over (partition by lower(idno) order by firstname) as rn
from people
) p on p.idno = x.idno and p.rn = 1
where ...
You should be able to use MAPI to access the mailbox and get the information you need. Unfortunately the only .NET MAPI library (MAPI33) I know of seems to be unmaintained. This used to be a great way to access MAPI through .NET, but I can't speak to its effectiveness now. There's more information about where you can get it here: Download location for MAPI33.dll?
SELECT * FROM V$TRANSACTION
WHERE STATUS='ACTIVE';
See: http://forums.oracle.com/forums/thread.jspa?threadID=691061
If by "simple" you mean ASCII, there is no need to do any encoding, since characters with an ASCII value of 127 or less are the same in UTF-8.
In C++ the stack memory is where local variables get stored/constructed. The stack is also used to hold parameters passed to functions.
The stack is very much like the std::stack class: you push parameters onto it and then call a function. The function then knows that the parameters it expects can be found on the end of the stack. Likewise, the function can push locals onto the stack and pop them off it before returning from the function. (caveat - compiler optimizations and calling conventions all mean things aren't this simple)
The stack is really best understood from a low level and I'd recommend Art of Assembly - Passing Parameters on the Stack. Rarely, if ever, would you consider any sort of manual stack manipulation from C++.
Generally speaking, the stack is preferred as it is usually in the CPU cache, so operations involving objects stored on it tend to be faster. However the stack is a limited resource, and shouldn't be used for anything large. Running out of stack memory is called a Stack buffer overflow. It's a serious thing to encounter, but you really shouldn't come across one unless you have a crazy recursive function or something similar.
Heap memory is much as rskar says. In general, C++ objects allocated with new, or blocks of memory allocated with the likes of malloc end up on the heap. Heap memory almost always must be manually freed, though you should really use a smart pointer class or similar to avoid needing to remember to do so. Running out of heap memory can (will?) result in a std::bad_alloc.
It seems in Septeber 2019, YouTube updated the values that are returned by get_video_info
.
Rather than data.url_encoded_fmt_stream_map
and data.adaptive_fmts
(as used in the other older examples) now we are looking for for data.formats
and data.adaptiveFormats
.
Anyways here is what you are all here for some code that loads a YouTube video into an <audio>
element. Try it on CodePen
// YouTube video ID
var videoID = "CMNry4PE93Y";
// Fetch video info (using a proxy to avoid CORS errors)
fetch('https://cors-anywhere.herokuapp.com/' + "https://www.youtube.com/get_video_info?video_id=" + videoID).then(response => {
if (response.ok) {
response.text().then(ytData => {
// parse response to find audio info
var ytData = parse_str(ytData);
var getAdaptiveFormats = JSON.parse(ytData.player_response).streamingData.adaptiveFormats;
var findAudioInfo = getAdaptiveFormats.findIndex(obj => obj.audioQuality);
// get the URL for the audio file
var audioURL = getAdaptiveFormats[findAudioInfo].url;
// update the <audio> element src
var youtubeAudio = document.getElementById('youtube');
youtubeAudio.src = audioURL;
});
}
});
function parse_str(str) {
return str.split('&').reduce(function(params, param) {
var paramSplit = param.split('=').map(function(value) {
return decodeURIComponent(value.replace('+', ' '));
});
params[paramSplit[0]] = paramSplit[1];
return params;
}, {});
}
_x000D_
<audio id="youtube" controls></audio>
_x000D_
You are looking at the wrong documentation. The time
module has different documentation.
You can use the datetime
module strftime
like this:
>>> from datetime import datetime
>>>
>>> now = datetime.now()
>>> now.strftime("%H:%M:%S.%f")
'12:19:40.948000'
Have you installed Windows Identity Foundation and the companion WIF SDK?
if you want as you expressed with breaks after each value;
$('#select-meal-type').change(function(){
var meals = $(this).val();
var selectedmeals = meals.join(", "); // there is a break after comma
alert (selectedmeals); // just for testing what will be printed
})
I know this has already been answered, but still, this is a good way to do it:
if ($("#checkbox").is(":checked")==false) {
//Do stuff here like: $(".span").html("<span>Lorem</span>");
}
In a single line you could do:
private static File[] bar(){
return new File[]{};
}
NSArray *_returnedArguments = [serverOutput componentsSeparatedByString:@":"];
_returnedArguments
is an array of NSStrings
which the UITextField text
property is expecting. No need to convert.
Syntax error:
[_appDelegate loggedIn:usernameField.text:passwordField.text:(int)[[_returnedArguments objectAtIndex:2] intValue]];
If your _appDelegate has a passwordField
property, then you can set the text using the following
[[_appDelegate passwordField] setText:[_returnedArguments objectAtIndex:2]];
write-host
does not have a -confirm
parameter.
You can do it something like this instead:
$caption = "Please Confirm"
$message = "Are you Sure You Want To Proceed:"
[int]$defaultChoice = 0
$yes = New-Object System.Management.Automation.Host.ChoiceDescription "&Yes", "Do the job."
$no = New-Object System.Management.Automation.Host.ChoiceDescription "&No", "Do not do the job."
$options = [System.Management.Automation.Host.ChoiceDescription[]]($yes, $no)
$choiceRTN = $host.ui.PromptForChoice($caption,$message, $options,$defaultChoice)
if ( $choiceRTN -ne 1 )
{
"Your Choice was Yes"
}
else
{
"Your Choice was NO"
}
display:
is not transitionable. You'll probably need to use jQuery to do what you want to do.
do wget -r -l0 www.oldsite.com
Then just find www.oldsite.com
would reveal all urls, I believe.
Alternatively, just serve that custom not-found page on every 404 request! I.e. if someone used the wrong link, he would get the page telling that page wasn't found, and making some hints about site's content.
Add this: jQuery.support.cors = true;
It enables cross-site scripting in jQuery (introduced after 1.4x, I believe).
We were using a really old version of jQuery (1.3.2) and swapped it out for 1.6.1. Everything was working, except .ajax() calls. Adding the above line fixed the problem.
You can make master
point at 1258f0d0aae
this way:
git checkout master
git reset --hard 1258f0d0aae
But you have to be careful about doing this. It may well rewrite the history of that branch. That would create problems if you have published it and other people are working on the branch.
Also, the git reset --hard
command will throw away any uncommitted changes (i.e. those just in your working tree or the index).
You can also force an update to a branch with:
git branch -f master 1258f0d0aae
... but git won't let you do that if you're on master
at the time.
Windows > Preferences > General > Appearance > Colors and Fonts
Then, to change Java editor font: Java > Java Editor Text Font > EDIT
There it is.
You can use ARG variable defaultValue
and during the run command you can even update this value using --build-arg variable=value
. To use these variables in the docker file you can refer them as $variable
in run command.
Note: These variables would be available for Linux commands like RUN echo $variable
and they wouldn't persist in the image.
The split() method in javascript accepts two parameters: a separator and a limit. The separator specifies the character to use for splitting the string. If you don't specify a separator, the entire string is returned, non-separated. But, if you specify the empty string as a separator, the string is split between each character.
Therefore:
s.split('')
will have the effect you seek.
More information here
function containsAny(str, substrings) {
for (var i = 0; i != substrings.length; i++) {
var substring = substrings[i];
if (str.indexOf(substring) != - 1) {
return substring;
}
}
return null;
}
var result = containsAny("defg", ["ab", "cd", "ef"]);
console.log("String was found in substring " + result);
I had to do following:
2.Go to App releases -> Manage production -> Create release
3.Click continue on Google Play App Signing
4.Create upload certificate by running "keytool -genkey -v -keystore c:\path\to\cert.keystore -alias uploadKey -keyalg RSA -keysize 2048 -validity 10000"
5.Sign your apk with generated certificate (c:\path\to\cert.keystore)
6.Upload signed apk in App releases -> Manage production -> Edit release
7.By uploading apk, certificate generated in step 4 has been added to App Signing certificates and became your signing cert for all future builds.
In my case I get items from XML-file with <string-array>
, where I store <item>
s. In these <item>
s I hold SQL strings and apply one-by-one with databaseBuilder.addMigrations(migration)
. I made one mistake, forgot to add \
before quote and got the exception:
android.database.sqlite.SQLiteException: no such column: some_value (code 1 SQLITE_ERROR): , while compiling: INSERT INTO table_name(id, name) VALUES(1, some_value)
So, this is a right variant:
<item>
INSERT INTO table_name(id, name) VALUES(1, \"some_value\")
</item>
Or, as an alternate, parse the resource ID with the following code:
mComponentName.setBackgroundColor(getResources().getColor(android.R.color.transparent));
This will give you exactly the strings that you asked for:
string s = "String goes here";
string lineAlignedRight = String.Format("{0,27}", s);
string lineAlignedCenter = String.Format("{0,-27}",
String.Format("{0," + ((27 + s.Length) / 2).ToString() + "}", s));
string lineAlignedLeft = String.Format("{0,-27}", s);
Easiest way to set permissions to 777 is to connect to Your server through FTP Application like FileZilla, right click on folder, module_installation, and click Change Permissions - then write 777 or check all permissions.
It works for me:
function stringIncludes(a, b) {
return a.indexOf(b) !== -1;
}
You should use .keydown()
because .keypress()
will ignore "Arrows", for catching the key type use e.which
Press the result screen to focus (bottom right on fiddle screen) and then press arrow keys to see it work.
Notes:
.keypress()
will never be fired with Shift, Esc, and Delete but .keydown()
will..keypress()
in some browser will be triggered by arrow keys but its not cross-browser so its more reliable to use .keydown()
.More useful information
.which
Or .keyCode
of the event object - Some browsers won't support one of them but when using jQuery its safe to use the both since jQuery standardizes things. (I prefer .which
never had a problem with).ctrl | alt | shift | META
press with the actual captured key you should check the following properties of the event object - They will be set to TRUE if they were pressed:
event.ctrlKey
- ctrl event.altKey
- altevent.shiftKey
- shiftevent.metaKey
- META ( Command ? OR Windows Key )Finally - here are some useful key codes ( For a full list - keycode-cheatsheet ):
String s = "<B><G>Test</G></B><C>Test1</C>";
String pattern ="\\<(.+)\\>([^\\<\\>]+)\\<\\/\\1\\>";
int count = 0;
Pattern p = Pattern.compile(pattern);
Matcher m = p.matcher(s);
while(m.find())
{
System.out.println(m.group(2));
count++;
}
Old question, but still relevant for PHP 5.2 users. str_getcsv is available from PHP 5.3. I've written a small function that works with fgetcsv itself.
Below is my function from https://gist.github.com/4152628:
function parse_csv_file($csvfile) {
$csv = Array();
$rowcount = 0;
if (($handle = fopen($csvfile, "r")) !== FALSE) {
$max_line_length = defined('MAX_LINE_LENGTH') ? MAX_LINE_LENGTH : 10000;
$header = fgetcsv($handle, $max_line_length);
$header_colcount = count($header);
while (($row = fgetcsv($handle, $max_line_length)) !== FALSE) {
$row_colcount = count($row);
if ($row_colcount == $header_colcount) {
$entry = array_combine($header, $row);
$csv[] = $entry;
}
else {
error_log("csvreader: Invalid number of columns at line " . ($rowcount + 2) . " (row " . ($rowcount + 1) . "). Expected=$header_colcount Got=$row_colcount");
return null;
}
$rowcount++;
}
//echo "Totally $rowcount rows found\n";
fclose($handle);
}
else {
error_log("csvreader: Could not read CSV \"$csvfile\"");
return null;
}
return $csv;
}
Returns
Begin Reading CSV
Array
(
[0] => Array
(
[vid] =>
[agency] =>
[division] => Division
[country] =>
[station] => Duty Station
[unit] => Unit / Department
[grade] =>
[funding] => Fund Code
[number] => Country Office Position Number
[wnumber] => Wings Position Number
[title] => Position Title
[tor] => Tor Text
[tor_file] =>
[status] =>
[datetime] => Entry on Wings
[laction] =>
[supervisor] => Supervisor Index Number
[asupervisor] => Alternative Supervisor Index
[author] =>
[category] =>
[parent] => Reporting to Which Position Number
[vacant] => Status (Vacant / Filled)
[index] => Index Number
)
[1] => Array
(
[vid] =>
[agency] => WFP
[division] => KEN Kenya, The Republic Of
[country] =>
[station] => Nairobi
[unit] => Human Resources Officer P4
[grade] => P-4
[funding] => 5000001
[number] => 22018154
[wnumber] =>
[title] => Human Resources Officer P4
[tor] =>
[tor_file] =>
[status] =>
[datetime] =>
[laction] =>
[supervisor] =>
[asupervisor] =>
[author] =>
[category] => Professional
[parent] =>
[vacant] =>
[index] => xxxxx
)
)
With async you just do:
await Task.Run(() => do some stuff);
// continue doing stuff on the same context as before.
// while it is the default it is nice to be explicit about it with:
await Task.Run(() => do some stuff).ConfigureAwait(true);
However:
await Task.Run(() => do some stuff).ConfigureAwait(false);
// continue doing stuff on the same thread as the task finished on.
Following the functional approach a union
of two Array
s is just the composition of concat
and filter
. In order to provide optimal performance we resort to the native Set
data type, which is optimized for property lookups.
Anyway, the key question in conjunction with a union
function is how to treat duplicates. The following permutations are possible:
Array A + Array B
[unique] + [unique]
[duplicated] + [unique]
[unique] + [duplicated]
[duplicated] + [duplicated]
The first two permutations are easy to handle with a single function. However, the last two are more complicated, since you can't process them as long as you rely on Set
lookups. Since switching to plain old Object
property lookups would entail a serious performance hit the following implementation just ignores the third and fourth permutation. You would have to build a separate version of union
to support them.
// small, reusable auxiliary functions_x000D_
_x000D_
const comp = f => g => x => f(g(x));_x000D_
const apply = f => a => f(a);_x000D_
const flip = f => b => a => f(a) (b);_x000D_
const concat = xs => y => xs.concat(y);_x000D_
const afrom = apply(Array.from);_x000D_
const createSet = xs => new Set(xs);_x000D_
const filter = f => xs => xs.filter(apply(f));_x000D_
_x000D_
_x000D_
// de-duplication_x000D_
_x000D_
const dedupe = comp(afrom) (createSet);_x000D_
_x000D_
_x000D_
// the actual union function_x000D_
_x000D_
const union = xs => ys => {_x000D_
const zs = createSet(xs); _x000D_
return concat(xs) (_x000D_
filter(x => zs.has(x)_x000D_
? false_x000D_
: zs.add(x)_x000D_
) (ys));_x000D_
}_x000D_
_x000D_
_x000D_
// mock data_x000D_
_x000D_
const xs = [1,2,2,3,4,5];_x000D_
const ys = [0,1,2,3,3,4,5,6,6];_x000D_
_x000D_
_x000D_
// here we go_x000D_
_x000D_
console.log( "unique/unique", union(dedupe(xs)) (ys) );_x000D_
console.log( "duplicated/unique", union(xs) (ys) );
_x000D_
From here on it gets trivial to implement an unionn
function, which accepts any number of arrays (inspired by naomik's comments):
// small, reusable auxiliary functions_x000D_
_x000D_
const uncurry = f => (a, b) => f(a) (b);_x000D_
const foldl = f => acc => xs => xs.reduce(uncurry(f), acc);_x000D_
_x000D_
const apply = f => a => f(a);_x000D_
const flip = f => b => a => f(a) (b);_x000D_
const concat = xs => y => xs.concat(y);_x000D_
const createSet = xs => new Set(xs);_x000D_
const filter = f => xs => xs.filter(apply(f));_x000D_
_x000D_
_x000D_
// union and unionn_x000D_
_x000D_
const union = xs => ys => {_x000D_
const zs = createSet(xs); _x000D_
return concat(xs) (_x000D_
filter(x => zs.has(x)_x000D_
? false_x000D_
: zs.add(x)_x000D_
) (ys));_x000D_
}_x000D_
_x000D_
const unionn = (head, ...tail) => foldl(union) (head) (tail);_x000D_
_x000D_
_x000D_
// mock data_x000D_
_x000D_
const xs = [1,2,2,3,4,5];_x000D_
const ys = [0,1,2,3,3,4,5,6,6];_x000D_
const zs = [0,1,2,3,4,5,6,7,8,9];_x000D_
_x000D_
_x000D_
// here we go_x000D_
_x000D_
console.log( unionn(xs, ys, zs) );
_x000D_
It turns out unionn
is just foldl
(aka Array.prototype.reduce
), which takes union
as its reducer. Note: Since the implementation doesn't use an additional accumulator, it will throw an error when you apply it without arguments.
UPDATE
The other Questions are outmoded. The terrible legacy classes such as SimpleDateFormat
were supplanted years ago by the modern java.time classes.
For defining your own custom formatting patterns, the codes in DateTimeFormatter
are similar to but not exactly the same as the codes in SimpleDateFormat
. Be sure to study the documentation. And search Stack Overflow for many examples.
DateTimeFormatter f =
DateTimeFormatter.ofPattern(
"dd MMM uuuu" ,
Locale.ITALY
)
;
The ISO 8601 standard defines formats for many types of date-time values. These formats are designed for data-exchange, being easily parsed by machine as well as easily read by humans across cultures.
The java.time classes use ISO 8601 formats by default when generating/parsing strings. Simply call the toString
& parse
methods. No need to specify a formatting pattern.
Instant.now().toString()
2018-11-05T18:19:33.017554Z
For a value in UTC, the Z
on the end means UTC, and is pronounced “Zulu”.
Rather than specify a formatting pattern, you can let java.time automatically localize for you. Use the DateTimeFormatter.ofLocalized…
methods.
Get current moment with the wall-clock time used by the people of a particular region (a time zone).
ZoneId z = ZoneId.of( "Africa/Tunis" );
ZonedDateTime zdt = ZonedDateTime.now( z );
Generate text in standard ISO 8601 format wisely extended to append the name of the time zone in square brackets.
zdt.toString(): 2018-11-05T19:20:23.765293+01:00[Africa/Tunis]
Generate auto-localized text.
Locale locale = Locale.CANADA_FRENCH;
DateTimeFormatter f = DateTimeFormatter.ofLocalizedDateTime( FormatStyle.FULL ).withLocale( locale );
String output = zdt.format( f );
output: lundi 5 novembre 2018 à 19:20:23 heure normale d’Europe centrale
Generally a better practice to auto-localize rather than fret with hard-coded formatting patterns.
The java.time framework is built into Java 8 and later. These classes supplant the troublesome old legacy date-time classes such as java.util.Date
, Calendar
, & SimpleDateFormat
.
To learn more, see the Oracle Tutorial. And search Stack Overflow for many examples and explanations. Specification is JSR 310.
The Joda-Time project, now in maintenance mode, advises migration to the java.time classes.
You may exchange java.time objects directly with your database. Use a JDBC driver compliant with JDBC 4.2 or later. No need for strings, no need for java.sql.*
classes. Hibernate 5 & JPA 2.2 support java.time.
Where to obtain the java.time classes?
startService(new Intent(this, MyService.class));
Just writing this line was not sufficient for me. Service still did not work. Everything had worked only after registering service at manifest
<application
android:icon="@drawable/ic_launcher"
android:label="@string/app_name" >
...
<service
android:name=".MyService"
android:label="My Service" >
</service>
</application>
iOS 4.3.2's User Agent, which came out this week, is:
Mozilla/5.0 (iPhone; U; CPU iPhone OS 4_3_2 like Mac OS X; en-us) AppleWebKit/533.17.9 (KHTML, like Gecko) Version/5.0.2 Mobile/8H7 Safari/6533.18.5
My issue was caused by some old Java projects using an old JRE System Library, so all I had to do was remove the old library and add the new one by right clicking the project -> Properties -> Java Build Path -> Libraries -> Add Library.
You should use the ISO-8601 format for string representations of dates - anything else is dependent on the SQL Server language and dateformat settings.
The ISO-8601 format for a DATETIME
when using only the date is: YYYYMMDD
(no dashes or antyhing!)
For a DATETIME
with the time portion, it's YYYY-MM-DDTHH:MM:SS
(with dashes, and a T
in the middle to separate date and time portions).
If you want to convert a string to a DATE
for SQL Server 2008 or newer, you can use YYYY-MM-DD
(with the dashes) to achieve the same result. And don't ask me why this is so inconsistent and confusing - it just is, and you'll have to work with that for now.
So in your case, you should try:
declare @a datetime
declare @b datetime
set @a = '2012-04-06T12:23:45' -- 6th of April, 2012
set @b = '2012-08-06T21:10:12' -- 6th of August, 2012
exec LogProcedure 'AccountLog', N'test', @a, @b
Furthermore - your stored proc has problem, since you're concatenating together datetime
and string into a string, but you're not converting the datetime
to string first, and also, you're forgetting the close quotes in your statement after both dates.
So change this line here to this:
IF @DateFirst <> '' and @DateLast <> ''
SET @FinalSQL = @FinalSQL + ' OR CONVERT(Date, DateLog) >= ''' +
CONVERT(VARCHAR(50), @DateFirst, 126) + -- convert @DateFirst to string for concatenation!
''' AND CONVERT(Date, DateLog) <=''' + -- you need closing quotes after @DateFirst!
CONVERT(VARCHAR(50), @DateLast, 126) + '''' -- convert @DateLast to string and also: closing tags after that missing!
With these settings, and once you've fixed your stored procedure which contains problems right now, it will work.
Add these two lines near the top of your batch file, all stdout and stderr after will be redirected to log.txt:
if not "%1"=="STDOUT_TO_FILE" %0 STDOUT_TO_FILE %* >log.txt 2>&1
shift /1
A simple snnipet:
public static String camelCase(String in) {
if (in == null || in.length() < 1) { return ""; } //validate in
String out = "";
for (String part : in.toLowerCase().split("_")) {
if (part.length() < 1) { //validate length
continue;
}
out += part.substring(0, 1).toUpperCase();
if (part.length() > 1) { //validate length
out += part.substring(1);
}
}
return out;
}
I'm using workaround for this:
class MyClass extends Foo<T> {
....
}
MyClass myClassInstance = MyClass.class.newInstance();
Virtual methods have an implementation and provide the derived classes with the option of overriding it. Abstract methods do not provide an implementation and force the derived classes to override the method.
So, abstract methods have no actual code in them, and subclasses HAVE TO override the method. Virtual methods can have code, which is usually a default implementation of something, and any subclasses CAN override the method using the override
modifier and provide a custom implementation.
public abstract class E
{
public abstract void AbstractMethod(int i);
public virtual void VirtualMethod(int i)
{
// Default implementation which can be overridden by subclasses.
}
}
public class D : E
{
public override void AbstractMethod(int i)
{
// You HAVE to override this method
}
public override void VirtualMethod(int i)
{
// You are allowed to override this method.
}
}
If you don't have an array but you are trying to use your observable like an array even though it's a stream of objects, this won't work natively. I show how to fix this below assuming you only care about adding objects to the observable, not deleting them.
If you are trying to use an observable whose source is of type BehaviorSubject, change it to ReplaySubject then in your component subscribe to it like this:
this.messages$ = this.chatService.messages$.pipe(scan((acc, val) => [...acc, val], []));
<div class="message-list" *ngFor="let item of messages$ | async">
What you've done by following those directions is created an entirely new Python installation, separate from the system Python that is managed by Ubuntu packages.
Modules you had installed in the system Python (e.g. installed via packages, or by manual installation using the system Python to run the setup process) will not be available, since your /usr/local
-based python
is configured to look in its own module directories, not the system Python's.
You can re-add missing modules now by building them and installing them using your new /usr/local
-based Python.
To resolve this error:
ORA-01653 unable to extend table by 1024 in tablespace your-tablespace-name
Just run this PL/SQL
command for extended tablespace size automatically on-demand:
alter database datafile '<your-tablespace-name>.dbf' autoextend on maxsize unlimited;
I get this error in import big dump file, just run this command without stopping import routine or restarting the database.
Note: each data file has a limit of 32GB of size if you need more than 32GB you should add a new data file to your existing tablespace.
More info: alter_autoextend_on
You can use absolute imports:
/root
/app
/config
config.py
/source
file.ipynb
# In the file.ipynb importing the config.py file
from root.app.config import config
The specific problem is that you're declaring a new variable instead of assigning to an existing one:
char * ret = new char[strlen(array) + 1 + 1];
^^^^^^ Remove this
and trying to compare string values by comparing pointers:
if (array!="") // Wrong - compares pointer with address of string literal
if (array[0] == 0) // Better - checks for empty string
although there's no need to make that comparison at all; the first branch will do the right thing whether or not the string is empty.
The more general problem is that you're messing around with nasty, error-prone C-style string manipulation in C++. Use std::string
and it will manage all the memory allocation for you:
std::string appendCharToString(std::string const & s, char a) {
return s + a;
}
I modified Flood's script to execute once for each table rather than for every column of each table for faster execution. It requires Oracle 11g or greater.
set serveroutput on size 100000
declare
v_match_count integer;
v_counter integer;
-- The owner of the tables to search through (case-sensitive)
v_owner varchar2(255) := 'OWNER_NAME';
-- A string that is part of the data type(s) of the columns to search through (case-insensitive)
v_data_type varchar2(255) := 'CHAR';
-- The string to be searched for (case-insensitive)
v_search_string varchar2(4000) := 'FIND_ME';
-- Store the SQL to execute for each table in a CLOB to get around the 32767 byte max size for a VARCHAR2 in PL/SQL
v_sql clob := '';
begin
for cur_tables in (select owner, table_name from all_tables where owner = v_owner and table_name in
(select table_name from all_tab_columns where owner = all_tables.owner and data_type like '%' || upper(v_data_type) || '%')
order by table_name) loop
v_counter := 0;
v_sql := '';
for cur_columns in (select column_name from all_tab_columns where
owner = v_owner and table_name = cur_tables.table_name and data_type like '%' || upper(v_data_type) || '%') loop
if v_counter > 0 then
v_sql := v_sql || ' or ';
end if;
v_sql := v_sql || 'upper(' || cur_columns.column_name || ') like ''%' || upper(v_search_string) || '%''';
v_counter := v_counter + 1;
end loop;
v_sql := 'select count(*) from ' || cur_tables.table_name || ' where ' || v_sql;
execute immediate v_sql
into v_match_count;
if v_match_count > 0 then
dbms_output.put_line('Match in ' || cur_tables.owner || ': ' || cur_tables.table_name || ' - ' || v_match_count || ' records');
end if;
end loop;
exception
when others then
dbms_output.put_line('Error when executing the following: ' || dbms_lob.substr(v_sql, 32600));
end;
/
All the preivous solution doesn't take in account posibility of the substring in parameter. For example http://xyz?ca=1&a=2 wouldn't select parameter a but ca. Here is function which goes through parameters and checks them.
function setGetParameter(paramName, paramValue)
{
var url = window.location.href;
var hash = location.hash;
url = url.replace(hash, '');
if (url.indexOf("?") >= 0)
{
var params = url.substring(url.indexOf("?") + 1).split("&");
var paramFound = false;
params.forEach(function(param, index) {
var p = param.split("=");
if (p[0] == paramName) {
params[index] = paramName + "=" + paramValue;
paramFound = true;
}
});
if (!paramFound) params.push(paramName + "=" + paramValue);
url = url.substring(0, url.indexOf("?")+1) + params.join("&");
}
else
url += "?" + paramName + "=" + paramValue;
window.location.href = url + hash;
}
OP asked about running from node
not from mocha
. This is a very common use case, see Using Mocha Programatically
This is what injected describe and it into my tests.
mocha.ui('bdd').run(function (failures) {
process.on('exit', function () {
process.exit(failures);
});
});
I tried tdd
like in the docs, but that didn't work, bdd worked though.
As of 8, May, 2019:
JVM heap size depends on system configuration, meaning:
a) client jvm vs server jvm
b) 32bit vs 64bit.
Links:
1) updation from J2SE5.0: https://docs.oracle.com/javase/6/docs/technotes/guides/vm/gc-ergonomics.html
2) brief answer: https://docs.oracle.com/javase/8/docs/technotes/guides/vm/gctuning/ergonomics.html
3) detailed answer: https://docs.oracle.com/javase/8/docs/technotes/guides/vm/gctuning/parallel.html#default_heap_size
4) client vs server: https://www.javacodegeeks.com/2011/07/jvm-options-client-vs-server.html
Summary: (Its tough to understand from the above links. So summarizing them here)
1) Default maximum heap size for Client jvm is 256mb (there is an exception, read from links above).
2) Default maximum heap size for Server jvm of 32bit is 1gb and of 64 bit is 32gb (again there are exceptions here too. Kindly read that from the links).
So default maximum jvm heap size is: 256mb or 1gb or 32gb depending on VM, above.
Update: This will create a second context same as in applicationContext.xml
or you can add this code snippet to your web.xml
<servlet>
<servlet-name>spring-dispatcher</servlet-name>
<servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
<init-param>
<param-name>contextConfigLocation</param-name>
<param-value>classpath:applicationContext.xml</param-value>
</init-param>
<load-on-startup>1</load-on-startup>
</servlet>
instead of
<servlet>
<servlet-name>dispatcher</servlet-name>
<servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
<load-on-startup>1</load-on-startup>
</servlet>
git-subtree will help you work with multiple projects in a single tree and keep separable history for them.
Typical usage might look like:
i=0
echo -e "hello1\nhello2\nhello3" | while read str ; do
echo "$((++i)): $str"
done
and output
1: hello1
2: hello2
3: hello3
I've grabbed the entries() method of formData from @moison answer and from MDN it's said that :
The FormData.entries() method returns an iterator allowing to go through all key/value pairs contained in this object. The key of each pair is a USVString object; the value either a USVString, or a Blob.
but the only issue is that mobile browser (android and safari are not supported ) and IE and Safari desktop too
but basically here is my approach :
let theForm = document.getElementById("contact");
theForm.onsubmit = function(event) {
event.preventDefault();
let rawData = new FormData(theForm);
let data = {};
for(let pair of rawData.entries()) {
data[pair[0]] = pair[1];
}
let contactData = JSON.stringify(data);
console.warn(contactData);
//here you can send a post request with content-type :'application.json'
};
the code can be found here
Exchanges will usually publish an up-to-date list of securities on their web pages. For example, these pages offer CSV downloads:
NASDAQ Updated their site, so you will have to modify the URLS:
NASDAQ
AMEX
NYSE
Depending on your requirement, you could create the map of these URLs by exchange in your own code.
Adding images to the drawable folder is pretty simple. Just follow these steps:
Your image will be saved inside drawable and you can use it.
asp:TextBox ID="txtName" placeholder="any text here"
Use this function:
def pretty_dict(d, n=1):
for k in d:
print(" "*n + k)
try:
pretty_dict(d[k], n=n+4)
except TypeError:
continue
Call it like this:
pretty_dict(mydict)
==UPDATED==
Very simple now in $watch.
HTML:
<div class="container" data-ng-app="app">
<div class="well" data-ng-controller="FooCtrl">
<p><strong>FooController</strong></p>
<div class="row">
<div class="col-sm-6">
<p><a href="" ng-click="setItems([ { name: 'I am single item' } ])">Send one item</a></p>
<p><a href="" ng-click="setItems([ { name: 'Item 1 of 2' }, { name: 'Item 2 of 2' } ])">Send two items</a></p>
<p><a href="" ng-click="setItems([ { name: 'Item 1 of 3' }, { name: 'Item 2 of 3' }, { name: 'Item 3 of 3' } ])">Send three items</a></p>
</div>
<div class="col-sm-6">
<p><a href="" ng-click="setName('Sheldon')">Send name: Sheldon</a></p>
<p><a href="" ng-click="setName('Leonard')">Send name: Leonard</a></p>
<p><a href="" ng-click="setName('Penny')">Send name: Penny</a></p>
</div>
</div>
</div>
<div class="well" data-ng-controller="BarCtrl">
<p><strong>BarController</strong></p>
<p ng-if="name">Name is: {{ name }}</p>
<div ng-repeat="item in items">{{ item.name }}</div>
</div>
</div>
JavaScript:
var app = angular.module('app', []);
app.factory('PostmanService', function() {
var Postman = {};
Postman.set = function(key, val) {
Postman[key] = val;
};
Postman.get = function(key) {
return Postman[key];
};
Postman.watch = function($scope, key, onChange) {
return $scope.$watch(
// This function returns the value being watched. It is called for each turn of the $digest loop
function() {
return Postman.get(key);
},
// This is the change listener, called when the value returned from the above function changes
function(newValue, oldValue) {
if (newValue !== oldValue) {
// Only update if the value changed
$scope[key] = newValue;
// Run onChange if it is function
if (angular.isFunction(onChange)) {
onChange(newValue, oldValue);
}
}
}
);
};
return Postman;
});
app.controller('FooCtrl', ['$scope', 'PostmanService', function($scope, PostmanService) {
$scope.setItems = function(items) {
PostmanService.set('items', items);
};
$scope.setName = function(name) {
PostmanService.set('name', name);
};
}]);
app.controller('BarCtrl', ['$scope', 'PostmanService', function($scope, PostmanService) {
$scope.items = [];
$scope.name = '';
PostmanService.watch($scope, 'items');
PostmanService.watch($scope, 'name', function(newVal, oldVal) {
alert('Hi, ' + newVal + '!');
});
}]);
SolidColorBrush brush = new SolidColorBrush( Color.FromArgb(255,255,139,0) )
Those curly things are sometimes hard to remember, that's why there's excellent documentation:
// Declare a single-dimensional array
int[] array1 = new int[5];
if i understood you can do the following
Right Click on View Name in SQL Server Management Studio -> Script View As ->CREATE To ->New Query Window
You can scale the image with pygame.transform.scale
:
import pygame
picture = pygame.image.load(filename)
picture = pygame.transform.scale(picture, (1280, 720))
You can then get the bounding rectangle of picture
with
rect = picture.get_rect()
and move the picture with
rect = rect.move((x, y))
screen.blit(picture, rect)
where screen
was set with something like
screen = pygame.display.set_mode((1600, 900))
To allow your widgets to adjust to various screen sizes, you could make the display resizable:
import os
import pygame
from pygame.locals import *
pygame.init()
screen = pygame.display.set_mode((500, 500), HWSURFACE | DOUBLEBUF | RESIZABLE)
pic = pygame.image.load("image.png")
screen.blit(pygame.transform.scale(pic, (500, 500)), (0, 0))
pygame.display.flip()
while True:
pygame.event.pump()
event = pygame.event.wait()
if event.type == QUIT:
pygame.display.quit()
elif event.type == VIDEORESIZE:
screen = pygame.display.set_mode(
event.dict['size'], HWSURFACE | DOUBLEBUF | RESIZABLE)
screen.blit(pygame.transform.scale(pic, event.dict['size']), (0, 0))
pygame.display.flip()
Here is the simplest way I found,
num <- c(5665,1615,5154,65564,69895646)
num <- sort(num, decreasing = F)
tail(num, 1) # Highest number
head(tail(num, 2),1) # Second Highest number
head(tail(num, 3),1) # Third Highest number
head(tail(num, n),1) # Generl equation for finding nth Highest number
var link = $("#me").closest(":has(h3 span b)").find('h3 span b');
Example: http://jsfiddle.net/e27r8/
This uses the closest()
[docs] method to get the first ancestor that has a nested h3 span b
, then does a .find()
.
Of course you could have multiple matches.
Otherwise, you're looking at doing a more direct traversal.
var link = $("#me").closest("h3 + div").prev().find('span b');
edit: This one works with your updated HTML.
Example: http://jsfiddle.net/e27r8/2/
EDIT: Updated to deal with updated question.
var link = $("#me").closest("h3 + *").prev().find('span b');
This makes the targeted element for .closest()
generic, so that even if there is no parent, it will still work.
Example: http://jsfiddle.net/e27r8/4/
To expand on Bartho Bernsmann's answer, I should like to add that one can have a universal, future-proof implementation at the expense of a little reflection:
static void AllowAllSecurityPrototols()
{ int i, n;
Array types;
SecurityProtocolType combined;
types = Enum.GetValues( typeof( SecurityProtocolType ) );
combined = ( SecurityProtocolType )types.GetValue( 0 );
n = types.Length;
for( i = 1; i < n; i += 1 )
{ combined |= ( SecurityProtocolType )types.GetValue( i ); }
ServicePointManager.SecurityProtocol = combined;
}
I invoke this method in the static constructor of the class that accesses the internet.
If css3 is an option, this can be done using the css calc()
function.
Markup is simple - a bunch of divs with some container element.
CSS looks like this:
div
{
height: 100px;
float: left;
background:pink;
width: 50px;
margin-right: calc((100% - 300px) / 5 - 1px);
}
div:last-child
{
margin-right:0;
}
where -1px to fix an IE9+ calc/rounding bug - see here
Here, in addition to the calc()
function, media queries
are necessary.
The basic idea is to set up a media query for each #columns states, where I then use calc() to work out the margin-right on each of the elements (except the ones in the last column).
This sounds like a lot of work, but if you're using LESS or SASS this can be done quite easily
(It can still be done with regular css, but then you'll have to do all the calculations manually, and then if you change your box width - you have to work out everything again)
Below is an example using LESS: (You can copy/paste this code here to play with it, [it's also the code I used to generate the above mentioned fiddle])
@min-margin: 15px;
@div-width: 150px;
@3divs: (@div-width * 3);
@4divs: (@div-width * 4);
@5divs: (@div-width * 5);
@6divs: (@div-width * 6);
@7divs: (@div-width * 7);
@3divs-width: (@3divs + @min-margin * 2);
@4divs-width: (@4divs + @min-margin * 3);
@5divs-width: (@5divs + @min-margin * 4);
@6divs-width: (@6divs + @min-margin * 5);
@7divs-width: (@7divs + @min-margin * 6);
*{margin:0;padding:0;}
.container
{
overflow: auto;
display: block;
min-width: @3divs-width;
}
.container > div
{
margin-bottom: 20px;
width: @div-width;
height: 100px;
background: blue;
float:left;
color: #fff;
text-align: center;
}
@media (max-width: @3divs-width) {
.container > div {
margin-right: @min-margin;
}
.container > div:nth-child(3n) {
margin-right: 0;
}
}
@media (min-width: @3divs-width) and (max-width: @4divs-width) {
.container > div {
margin-right: ~"calc((100% - @{3divs})/2 - 1px)";
}
.container > div:nth-child(3n) {
margin-right: 0;
}
}
@media (min-width: @4divs-width) and (max-width: @5divs-width) {
.container > div {
margin-right: ~"calc((100% - @{4divs})/3 - 1px)";
}
.container > div:nth-child(4n) {
margin-right: 0;
}
}
@media (min-width: @5divs-width) and (max-width: @6divs-width) {
.container > div {
margin-right: ~"calc((100% - @{5divs})/4 - 1px)";
}
.container > div:nth-child(5n) {
margin-right: 0;
}
}
@media (min-width: @6divs-width){
.container > div {
margin-right: ~"calc((100% - @{6divs})/5 - 1px)";
}
.container > div:nth-child(6n) {
margin-right: 0;
}
}
So basically you first need to decide a box-width and a minimum margin that you want between the boxes.
With that, you can work out how much space you need for each state.
Then, use calc() to calcuate the right margin, and nth-child to remove the right margin from the boxes in the final column.
The advantage of this answer over the accepted answer which uses text-align:justify
is that when you have more than one row of boxes - the boxes on the final row don't get 'justified' eg: If there are 2 boxes remaining on the final row - I don't want the first box to be on the left and the next one to be on the right - but rather that the boxes follow each other in order.
Regarding browser support: This will work on IE9+,Firefox,Chrome,Safari6.0+ - (see here for more details) However i noticed that on IE9+ there's a bit of a glitch between media query states. [if someone knows how to fix this i'd really like to know :) ] <-- FIXED HERE
Using PuTTY's pscp.exe (which I have in an $env:path
directory):
pscp -sftp -pw passwd c:\filedump\* user@host:/Outbox/
mv c:\filedump\* c:\backup\*
document.getElementById(button_id).innerHTML = 'Lock';
You can view the java doc examples or the example of usage of Predicate here
Basically it is used to filter rows in the resultset based on any specific criteria that you may have and return true for those rows that are meeting your criteria:
// the age column to be between 7 and 10
AgeFilter filter = new AgeFilter(7, 10, 3);
// set the filter.
resultset.beforeFirst();
resultset.setFilter(filter);
For the 64-bit RegAsm.exe you will need to find it someplace like this:
c:\Windows\Microsoft.NET\Framework64\version_number_stuff\regasm.exe
You can do this:
a = a || 0
...which will convert a from any "falsey" value to 0
.
The "falsey" values are:
false
null
undefined
0
""
( empty string )NaN
( Not a Number )Or this if you prefer:
a = a ? a : 0;
...which will have the same effect as above.
If the intent was to test for more than just NaN
, then you can do the same, but do a toNumber conversion first.
a = +a || 0
This uses the unary + operator to try to convert a
to a number. This has the added benefit of converting things like numeric strings '123'
to a number.
The only unexpected thing may be if someone passes an Array that can successfully be converted to a number:
+['123'] // 123
Here we have an Array that has a single member that is a numeric string. It will be successfully converted to a number.
Chrome supports WebDatabase API (which is powered by sqlite), but looks like W3C stopped its development.
Add the "?attr/selectableItemBackground"
to your view's android:foreground
attribute if it already has a background along with android:clickable="true"
.
If the sites are on separate domains, the calling page can't access the height of the iframe due to cross-browser domain restrictions. If you have access to both sites, you may be able to use the [document domain hack].1 Then anroesti's links should help.
A simplistic approach would be to have a way to preserve the header.
Let's say you have a file.csv like:
user, topic, hits
om, scala, 120
daniel, spark, 80
3754978, spark, 1
We can define a header class that uses a parsed version of the first row:
class SimpleCSVHeader(header:Array[String]) extends Serializable {
val index = header.zipWithIndex.toMap
def apply(array:Array[String], key:String):String = array(index(key))
}
That we can use that header to address the data further down the road:
val csv = sc.textFile("file.csv") // original file
val data = csv.map(line => line.split(",").map(elem => elem.trim)) //lines in rows
val header = new SimpleCSVHeader(data.take(1)(0)) // we build our header with the first line
val rows = data.filter(line => header(line,"user") != "user") // filter the header out
val users = rows.map(row => header(row,"user")
val usersByHits = rows.map(row => header(row,"user") -> header(row,"hits").toInt)
...
Note that the header
is not much more than a simple map of a mnemonic to the array index. Pretty much all this could be done on the ordinal place of the element in the array, like user = row(0)
PS: Welcome to Scala :-)
Assuming that the *.bak file is on the same machine as the SQL Express instance it might be a permissions issue.
If you download procmon http://technet.microsoft.com/en-us/sysinternals/bb896645.aspx you can filter on that file path, look for ACCESS_DENIED errors and if any are there you can see the account name that's failing get to access.
In C++ language the result of the subexpresison is never affected by the surrounding context (with some rare exceptions). This is one of the principles that the language carefully follows. The expression c = a / b
contains of an independent subexpression a / b
, which is interpreted independently from anything outside that subexpression. The language does not care that you later will assign the result to a double
. a / b
is an integer division. Anything else does not matter. You will see this principle followed in many corners of the language specification. That's juts how C++ (and C) works.
One example of an exception I mentioned above is the function pointer assignment/initialization in situations with function overloading
void foo(int);
void foo(double);
void (*p)(double) = &foo; // automatically selects `foo(fouble)`
This is one context where the left-hand side of an assignment/initialization affects the behavior of the right-hand side. (Also, reference-to-array initialization prevents array type decay, which is another example of similar behavior.) In all other cases the right-hand side completely ignores the left-hand side.
I ran into this when I reduced the number of user-input parameters in userInput from 3 to 1. This changed the variable output type of userInput from an array to a primitive.
Example:
myvar1 = userInput['param1']
myvar2 = userInput['param2']
to:
myvar = userInput
REPEAT
...
UNTIL cond
Is equivalent to
while True:
...
if cond:
break
There's a Babel plugin that allows you to write conditional statements inside JSX without needing to escape them with JavaScript or write a wrapper class. It's called JSX Control Statements:
<View style={styles.container}>
<If condition={ this.state == 'news' }>
<Text>data</Text>
</If>
</View>
It takes a bit of setting up depending on your Babel configuration, but you don't have to import anything and it has all the advantages of conditional rendering without leaving JSX which leaves your code looking very clean.
For the examples you stated I'd use the following:
activate_login
POST /users/1/activation
deactivate_login
DELETE /users/1/activation
change_password
PUT /passwords
(this assumes the user is authenticated)
add_credit
POST /credits
(this assumes the user is authenticated)
For errors you'd return the error in the body in the format that you got the request in, so if you receive:
DELETE /users/1.xml
You'd send the response back in XML, the same would be true for JSON etc...
For authentication you should use http authentication.
You should use this one too:
./gradlew :app:dependencies
(Mac and Linux) -With ./
gradlew :app:dependencies
(Windows) -Without ./
The libs you are using internally using any other versions of google play service.If yes then remove or update those libs.
In Pycharm Just use Shift+Tab to move a block of code left.
Not only can you change the Visual Studio Code settings to trim trailing whitespace automatically, but you can also do this from the command palette (Ctrl+Shift+P):
You can also use the keyboard shortcut:
(I'm using Visual Studio Code 1.20.1.)
Just use a onchnage Event
for select box.
<select id="selectbox" name="" onchange="javascript:location.href = this.value;">
<option value="https://www.yahoo.com/" selected>Option1</option>
<option value="https://www.google.co.in/">Option2</option>
<option value="https://www.gmail.com/">Option3</option>
</select>
And if selected option to be loaded at the page load then add some javascript code
<script type="text/javascript">
window.onload = function(){
location.href=document.getElementById("selectbox").value;
}
</script>
for jQuery: Remove the onchange event from <select>
tag
jQuery(function () {
// remove the below comment in case you need chnage on document ready
// location.href=jQuery("#selectbox").val();
jQuery("#selectbox").change(function () {
location.href = jQuery(this).val();
})
})
If you want to try it without the try catch block, can use the following method, Create a intent and set the package of the app which you want to verify
val intent = Intent(Intent.ACTION_VIEW)
intent.data = uri
intent.setPackage("com.example.packageofapp")
and the call the following method to check if the app is installed
fun isInstalled(intent:Intent) :Boolean{
val list = context.packageManager.queryIntentActivities(intent, PackageManager.MATCH_DEFAULT_ONLY)
return list.isNotEmpty()
}
I was trying to instantiate the generic from within a base class. None of the above examples worked for me as they required a concrete type in order to call the factory method.
After researching for awhile on this and unable to find a solution online, I discovered that this appears to work.
protected activeRow: T = {} as T;
The pieces:
activeRow: T = {} <-- activeRow now equals a new object...
...
as T; <-- As the type I specified.
All together
export abstract class GridRowEditDialogBase<T extends DataRow> extends DialogBase{
protected activeRow: T = {} as T;
}
That said, if you need an actual instance you should use:
export function getInstance<T extends Object>(type: (new (...args: any[]) => T), ...args: any[]): T {
return new type(...args);
}
export class Foo {
bar() {
console.log("Hello World")
}
}
getInstance(Foo).bar();
If you have arguments, you can use.
export class Foo2 {
constructor(public arg1: string, public arg2: number) {
}
bar() {
console.log(this.arg1);
console.log(this.arg2);
}
}
getInstance(Foo, "Hello World", 2).bar();
Just do (int)myLongValue
. It'll do exactly what you want (discarding MSBs and taking LSBs) in unchecked
context (which is the compiler default). It'll throw OverflowException
in checked
context if the value doesn't fit in an int
:
int myIntValue = unchecked((int)myLongValue);
In the source header you can declare:
#!/usr/bin/env python
# -*- coding: utf-8 -*-
....
It is described in the PEP 0263:
Then you can use UTF-8 in strings:
#!/usr/bin/env python
# -*- coding: utf-8 -*-
u = 'idzie waz waska drózka'
uu = u.decode('utf8')
s = uu.encode('cp1250')
print(s)
This declaration is not needed in Python 3 as UTF-8 is the default source encoding (see PEP 3120).
In addition, it may be worth verifying that your text editor properly encodes your code in UTF-8. Otherwise, you may have invisible characters that are not interpreted as UTF-8.
like this Working demo http://jsfiddle.net/7e2XU/21/show/# * Update: http://jsfiddle.net/kz5kjmbt/
<div class="container">
<div class="row" style="padding-top: 240px;"> <a href="#" class="btn btn-large btn-primary" rel="popover" data-content='
<form id="mainForm" name="mainForm" method="post" action="">
<p>
<label>Name :</label>
<input type="text" id="txtName" name="txtName" />
</p>
<p>
<label>Address 1 :</label>
<input type="text" id="txtAddress" name="txtAddress" />
</p>
<p>
<label>City :</label>
<input type="text" id="txtCity" name="txtCity" />
</p>
<p>
<input type="submit" name="Submit" value="Submit" />
</p>
</form>
data-placement="top" data-original-title="Fill in form">Open form</a>
</div>
</div>
JavaScript code:
$('a[rel=popover]').popover({
html: 'true',
placement: 'right'
})
ScreenShot
The simplest way would be to inject the following object where you need to initiate the shutdown
ShutdownManager.java
import org.springframework.context.ApplicationContext;
import org.springframework.boot.SpringApplication;
@Component
class ShutdownManager {
@Autowired
private ApplicationContext appContext;
/*
* Invoke with `0` to indicate no error or different code to indicate
* abnormal exit. es: shutdownManager.initiateShutdown(0);
**/
public void initiateShutdown(int returnCode){
SpringApplication.exit(appContext, () -> returnCode);
}
}
I would not make the primary key of the "info" table a composite of the two values from other tables.
Others can articulate the reasons better, but it feels wrong to have a column that is really made up of two pieces of information. What if you want to sort on the ID from the second table for some reason? What if you want to count the number of times a value from either table is present?
I would always keep these as two distinct columns. You could use a two-column primay key in mysql ...PRIMARY KEY(id_a, id_b)... but I prefer using a two-column unique index, and having an auto-increment primary key field.
I had this concern when working on a Rails application with Docker.
My most preferred approach is to generally not use quotes. This includes not using quotes for:
${RAILS_ENV}
postgres-log:/var/log/postgresql
I, however, use double-quotes for integer
values that need to be converted to strings like:
version: "3.8"
"8080:8080"
However, for special cases like booleans
, floats
, integers
, and other cases, where using double-quotes for the entry values could be interpreted as strings
, please do not use double-quotes.
Here's a sample docker-compose.yml
file to explain this concept:
version: "3"
services:
traefik:
image: traefik:v2.2.1
command:
- --api.insecure=true # Don't do that in production
- --providers.docker=true
- --providers.docker.exposedbydefault=false
- --entrypoints.web.address=:80
ports:
- "80:80"
- "8080:8080"
volumes:
- /var/run/docker.sock:/var/run/docker.sock:ro
That's all.
I hope this helps
i tried to set default time for a picker and it worked:
$('#date2').datetimepicker({
format: 'DD-MM-YYYY 12:00:00'
});
this will save in database as : 2015-03-01 12:00:00
used for smalldatetime
type in sql server
As in Internet Explorer, the javascript method "includes" doesn't support which is leading to the error as below
dijit.form.FilteringSelect TypeError: Object doesn't support property or method 'includes'
So I have changed the JavaScript string method from "includes" to "indexOf" as below
//str1 doesn't match str2 w.r.t index, so it will try to add object
var str1="acd", str2="b";
if(str1.indexOf(str2) == -1)
{
alert("add object");
}
else
{
alert("object not added");
}
ES6 1-liner
// :: splitAt = number => Array<any>|string => Array<Array<any>|string>_x000D_
const splitAt = index => x => [x.slice(0, index), x.slice(index)]_x000D_
_x000D_
console.log(_x000D_
splitAt(1)('foo'), // ["f", "oo"]_x000D_
splitAt(2)([1, 2, 3, 4]) // [[1, 2], [3, 4]]_x000D_
)_x000D_
_x000D_
////////////////////////// 1] File to Byte [] ///////////////////
Path path = Paths.get(p);
byte[] data = null;
try {
data = Files.readAllBytes(path);
} catch (IOException ex) {
Logger.getLogger(Agent1.class.getName()).log(Level.SEVERE, null, ex);
}
/////////////////////// 2] Byte [] to File ///////////////////////////
File f = new File(fileName);
byte[] fileContent = msg.getByteSequenceContent();
Path path = Paths.get(f.getAbsolutePath());
try {
Files.write(path, fileContent);
} catch (IOException ex) {
Logger.getLogger(Agent2.class.getName()).log(Level.SEVERE, null, ex);
}
Many people have mentioned DecimalFormat
. But you can also use printf
if you have a recent version of Java:
System.out.printf("%1.2f", 3.14159D);
See the docs on the Formatter for more information about the printf format string.
If your command is available in cmd.exe (something like python ./script.py
, but not PowerShell command like ii .
(this means to open the current directory by Windows Explorer)), you can run cmd.exe within PowerShell. The syntax is like this:
cmd /c "command1 && command2"
Here, &&
is provided by cmd syntax described in this question.
Let take a string like :
XIX IXI XX X I II IIXX XXII I-I X-X -X X- X-I I-X -X- -I-X -X-I I-X- X-I- X_X _X-
Note: Underscore ( _ ) is not considered a special character in this case.
/\bX\b/g
Should begin and end with a special character or white SpaceXIX IXI XX X I II IIXX XXII I-I X-X -X X- X-I I-X -X- -I-X -X-I I-X- X-I- X_X _X-
/\bX/g
Should begin with a special character or white SpaceXIX IXI XX X I II IIXX XXII I-I X-X -X X- X-I I-X -X- -I-X -X-I I-X- X-I- X_X _X-
/X\b/g
Should end with a special character or white SpaceXIX IXI XX X I II IIXX XXII I-I X-X -X X- X-I I-X -X- -I-X -X-I I-X- X-I- X_X _X-
/\BX\B/g
XIX IXI XX X I II IIXX XXII I-I X-X -X X- X-I I-X -X- -I-X -X-I I-X- X-I- X_X _X-
/\BX/g
Should not begin with a special character or white SpaceXIX IXI XX X I II IIXX XXII I-I X-X -X X- X-I I-X -X- -I-X -X-I I-X- X-I- X_X _X-
/X\B/g
Should not end with a special character or white SpaceXIX IXI XX X I II IIXX XXII I-I X-X -X X- X-I I-X -X- -I-X -X-I I-X- X-I- X_X _X-
/\bX\B/g
Should begin and not end with a special character or white SpaceXIX IXI XX X I II IIXX XXII I-I X-X -X X- X-I I-X -X- -I-X -X-I I-X- X-I- X_X _X-
/\BX\b/g
Should not begin and should end with a special character or white SpaceXIX IXI XX X I II IIXX XXII I-I X-X -X X- X-I I-X -X- -I-X -X-I I-X- X-I- X_X _X-
Here is a more complete version based on the Unicode standard, taken from here: http://semplicewebsites.com/removing-accents-javascript
var Latinise={};Latinise.latin_map={"Á":"A",
"A":"A",
"?":"A",
"?":"A",
"?":"A",
"?":"A",
"?":"A",
"A":"A",
"Â":"A",
"?":"A",
"?":"A",
"?":"A",
"?":"A",
"?":"A",
"Ä":"A",
"A":"A",
"?":"A",
"?":"A",
"?":"A",
"?":"A",
"À":"A",
"?":"A",
"?":"A",
"A":"A",
"A":"A",
"Å":"A",
"?":"A",
"?":"A",
"?":"A",
"Ã":"A",
"?":"AA",
"Æ":"AE",
"?":"AE",
"?":"AE",
"?":"AO",
"?":"AU",
"?":"AV",
"?":"AV",
"?":"AY",
"?":"B",
"?":"B",
"?":"B",
"?":"B",
"?":"B",
"?":"B",
"C":"C",
"C":"C",
"Ç":"C",
"?":"C",
"C":"C",
"C":"C",
"?":"C",
"?":"C",
"D":"D",
"?":"D",
"?":"D",
"?":"D",
"?":"D",
"?":"D",
"?":"D",
"?":"D",
"?":"D",
"Ð":"D",
"?":"D",
"?":"DZ",
"?":"DZ",
"É":"E",
"E":"E",
"E":"E",
"?":"E",
"?":"E",
"Ê":"E",
"?":"E",
"?":"E",
"?":"E",
"?":"E",
"?":"E",
"?":"E",
"Ë":"E",
"E":"E",
"?":"E",
"?":"E",
"È":"E",
"?":"E",
"?":"E",
"E":"E",
"?":"E",
"?":"E",
"E":"E",
"?":"E",
"?":"E",
"?":"E",
"?":"ET",
"?":"F",
"ƒ":"F",
"?":"G",
"G":"G",
"G":"G",
"G":"G",
"G":"G",
"G":"G",
"?":"G",
"?":"G",
"G":"G",
"?":"H",
"?":"H",
"?":"H",
"H":"H",
"?":"H",
"?":"H",
"?":"H",
"?":"H",
"H":"H",
"Í":"I",
"I":"I",
"I":"I",
"Î":"I",
"Ï":"I",
"?":"I",
"I":"I",
"?":"I",
"?":"I",
"Ì":"I",
"?":"I",
"?":"I",
"I":"I",
"I":"I",
"I":"I",
"I":"I",
"?":"I",
"?":"D",
"?":"F",
"?":"G",
"?":"R",
"?":"S",
"?":"T",
"?":"IS",
"J":"J",
"?":"J",
"?":"K",
"K":"K",
"K":"K",
"?":"K",
"?":"K",
"?":"K",
"?":"K",
"?":"K",
"?":"K",
"?":"K",
"L":"L",
"?":"L",
"L":"L",
"L":"L",
"?":"L",
"?":"L",
"?":"L",
"?":"L",
"?":"L",
"?":"L",
"?":"L",
"?":"L",
"?":"L",
"L":"L",
"?":"LJ",
"?":"M",
"?":"M",
"?":"M",
"?":"M",
"N":"N",
"N":"N",
"N":"N",
"?":"N",
"?":"N",
"?":"N",
"?":"N",
"?":"N",
"?":"N",
"?":"N",
"?":"N",
"Ñ":"N",
"?":"NJ",
"Ó":"O",
"O":"O",
"O":"O",
"Ô":"O",
"?":"O",
"?":"O",
"?":"O",
"?":"O",
"?":"O",
"Ö":"O",
"?":"O",
"?":"O",
"?":"O",
"?":"O",
"O":"O",
"?":"O",
"Ò":"O",
"?":"O",
"O":"O",
"?":"O",
"?":"O",
"?":"O",
"?":"O",
"?":"O",
"?":"O",
"?":"O",
"?":"O",
"O":"O",
"?":"O",
"?":"O",
"O":"O",
"O":"O",
"O":"O",
"Ø":"O",
"?":"O",
"Õ":"O",
"?":"O",
"?":"O",
"?":"O",
"?":"OI",
"?":"OO",
"?":"E",
"?":"O",
"?":"OU",
"?":"P",
"?":"P",
"?":"P",
"?":"P",
"?":"P",
"?":"P",
"?":"P",
"?":"Q",
"?":"Q",
"R":"R",
"R":"R",
"R":"R",
"?":"R",
"?":"R",
"?":"R",
"?":"R",
"?":"R",
"?":"R",
"?":"R",
"?":"R",
"?":"C",
"?":"E",
"S":"S",
"?":"S",
"Š":"S",
"?":"S",
"S":"S",
"S":"S",
"?":"S",
"?":"S",
"?":"S",
"?":"S",
"T":"T",
"T":"T",
"?":"T",
"?":"T",
"?":"T",
"?":"T",
"?":"T",
"?":"T",
"?":"T",
"T":"T",
"T":"T",
"?":"A",
"?":"L",
"?":"M",
"?":"V",
"?":"TZ",
"Ú":"U",
"U":"U",
"U":"U",
"Û":"U",
"?":"U",
"Ü":"U",
"U":"U",
"U":"U",
"U":"U",
"U":"U",
"?":"U",
"?":"U",
"U":"U",
"?":"U",
"Ù":"U",
"?":"U",
"U":"U",
"?":"U",
"?":"U",
"?":"U",
"?":"U",
"?":"U",
"?":"U",
"U":"U",
"?":"U",
"U":"U",
"U":"U",
"U":"U",
"?":"U",
"?":"U",
"?":"V",
"?":"V",
"?":"V",
"?":"V",
"?":"VY",
"?":"W",
"W":"W",
"?":"W",
"?":"W",
"?":"W",
"?":"W",
"?":"W",
"?":"X",
"?":"X",
"Ý":"Y",
"Y":"Y",
"Ÿ":"Y",
"?":"Y",
"?":"Y",
"?":"Y",
"?":"Y",
"?":"Y",
"?":"Y",
"?":"Y",
"?":"Y",
"?":"Y",
"Z":"Z",
"Ž":"Z",
"?":"Z",
"?":"Z",
"Z":"Z",
"?":"Z",
"?":"Z",
"?":"Z",
"?":"Z",
"?":"IJ",
"Œ":"OE",
"?":"A",
"?":"AE",
"?":"B",
"?":"B",
"?":"C",
"?":"D",
"?":"E",
"?":"F",
"?":"G",
"?":"G",
"?":"H",
"?":"I",
"?":"R",
"?":"J",
"?":"K",
"?":"L",
"?":"L",
"?":"M",
"?":"N",
"?":"O",
"?":"OE",
"?":"O",
"?":"OU",
"?":"P",
"?":"R",
"?":"N",
"?":"R",
"?":"S",
"?":"T",
"?":"E",
"?":"R",
"?":"U",
"?":"V",
"?":"W",
"?":"Y",
"?":"Z",
"á":"a",
"a":"a",
"?":"a",
"?":"a",
"?":"a",
"?":"a",
"?":"a",
"a":"a",
"â":"a",
"?":"a",
"?":"a",
"?":"a",
"?":"a",
"?":"a",
"ä":"a",
"a":"a",
"?":"a",
"?":"a",
"?":"a",
"?":"a",
"à":"a",
"?":"a",
"?":"a",
"a":"a",
"a":"a",
"?":"a",
"?":"a",
"å":"a",
"?":"a",
"?":"a",
"?":"a",
"ã":"a",
"?":"aa",
"æ":"ae",
"?":"ae",
"?":"ae",
"?":"ao",
"?":"au",
"?":"av",
"?":"av",
"?":"ay",
"?":"b",
"?":"b",
"?":"b",
"?":"b",
"?":"b",
"?":"b",
"b":"b",
"?":"b",
"?":"o",
"c":"c",
"c":"c",
"ç":"c",
"?":"c",
"c":"c",
"?":"c",
"c":"c",
"?":"c",
"?":"c",
"d":"d",
"?":"d",
"?":"d",
"?":"d",
"?":"d",
"?":"d",
"?":"d",
"?":"d",
"?":"d",
"?":"d",
"?":"d",
"d":"d",
"?":"d",
"?":"d",
"i":"i",
"?":"j",
"?":"j",
"?":"j",
"?":"dz",
"?":"dz",
"é":"e",
"e":"e",
"e":"e",
"?":"e",
"?":"e",
"ê":"e",
"?":"e",
"?":"e",
"?":"e",
"?":"e",
"?":"e",
"?":"e",
"ë":"e",
"e":"e",
"?":"e",
"?":"e",
"è":"e",
"?":"e",
"?":"e",
"e":"e",
"?":"e",
"?":"e",
"?":"e",
"e":"e",
"?":"e",
"?":"e",
"?":"e",
"?":"e",
"?":"et",
"?":"f",
"ƒ":"f",
"?":"f",
"?":"f",
"?":"g",
"g":"g",
"g":"g",
"g":"g",
"g":"g",
"g":"g",
"?":"g",
"?":"g",
"?":"g",
"g":"g",
"?":"h",
"?":"h",
"?":"h",
"h":"h",
"?":"h",
"?":"h",
"?":"h",
"?":"h",
"?":"h",
"?":"h",
"h":"h",
"?":"hv",
"í":"i",
"i":"i",
"i":"i",
"î":"i",
"ï":"i",
"?":"i",
"?":"i",
"?":"i",
"ì":"i",
"?":"i",
"?":"i",
"i":"i",
"i":"i",
"?":"i",
"?":"i",
"i":"i",
"?":"i",
"?":"d",
"?":"f",
"?":"g",
"?":"r",
"?":"s",
"?":"t",
"?":"is",
"j":"j",
"j":"j",
"?":"j",
"?":"j",
"?":"k",
"k":"k",
"k":"k",
"?":"k",
"?":"k",
"?":"k",
"?":"k",
"?":"k",
"?":"k",
"?":"k",
"?":"k",
"l":"l",
"l":"l",
"?":"l",
"l":"l",
"l":"l",
"?":"l",
"?":"l",
"?":"l",
"?":"l",
"?":"l",
"?":"l",
"?":"l",
"?":"l",
"?":"l",
"?":"l",
"?":"l",
"l":"l",
"?":"lj",
"?":"s",
"?":"s",
"?":"s",
"?":"s",
"?":"m",
"?":"m",
"?":"m",
"?":"m",
"?":"m",
"?":"m",
"n":"n",
"n":"n",
"n":"n",
"?":"n",
"?":"n",
"?":"n",
"?":"n",
"?":"n",
"?":"n",
"?":"n",
"?":"n",
"?":"n",
"?":"n",
"?":"n",
"ñ":"n",
"?":"nj",
"ó":"o",
"o":"o",
"o":"o",
"ô":"o",
"?":"o",
"?":"o",
"?":"o",
"?":"o",
"?":"o",
"ö":"o",
"?":"o",
"?":"o",
"?":"o",
"?":"o",
"o":"o",
"?":"o",
"ò":"o",
"?":"o",
"o":"o",
"?":"o",
"?":"o",
"?":"o",
"?":"o",
"?":"o",
"?":"o",
"?":"o",
"?":"o",
"?":"o",
"o":"o",
"?":"o",
"?":"o",
"o":"o",
"o":"o",
"ø":"o",
"?":"o",
"õ":"o",
"?":"o",
"?":"o",
"?":"o",
"?":"oi",
"?":"oo",
"?":"e",
"?":"e",
"?":"o",
"?":"o",
"?":"ou",
"?":"p",
"?":"p",
"?":"p",
"?":"p",
"?":"p",
"?":"p",
"?":"p",
"?":"p",
"?":"p",
"?":"q",
"?":"q",
"?":"q",
"?":"q",
"r":"r",
"r":"r",
"r":"r",
"?":"r",
"?":"r",
"?":"r",
"?":"r",
"?":"r",
"?":"r",
"?":"r",
"?":"r",
"?":"r",
"?":"r",
"?":"r",
"?":"r",
"?":"r",
"?":"c",
"?":"c",
"?":"e",
"?":"r",
"s":"s",
"?":"s",
"š":"s",
"?":"s",
"s":"s",
"s":"s",
"?":"s",
"?":"s",
"?":"s",
"?":"s",
"?":"s",
"?":"s",
"?":"s",
"?":"s",
"g":"g",
"?":"o",
"?":"o",
"?":"u",
"t":"t",
"t":"t",
"?":"t",
"?":"t",
"?":"t",
"?":"t",
"?":"t",
"?":"t",
"?":"t",
"?":"t",
"?":"t",
"?":"t",
"t":"t",
"?":"t",
"t":"t",
"?":"th",
"?":"a",
"?":"ae",
"?":"e",
"?":"g",
"?":"h",
"?":"h",
"?":"h",
"?":"i",
"?":"k",
"?":"l",
"?":"m",
"?":"m",
"?":"oe",
"?":"r",
"?":"r",
"?":"r",
"?":"r",
"?":"t",
"?":"v",
"?":"w",
"?":"y",
"?":"tz",
"ú":"u",
"u":"u",
"u":"u",
"û":"u",
"?":"u",
"ü":"u",
"u":"u",
"u":"u",
"u":"u",
"u":"u",
"?":"u",
"?":"u",
"u":"u",
"?":"u",
"ù":"u",
"?":"u",
"u":"u",
"?":"u",
"?":"u",
"?":"u",
"?":"u",
"?":"u",
"?":"u",
"u":"u",
"?":"u",
"u":"u",
"?":"u",
"u":"u",
"u":"u",
"?":"u",
"?":"u",
"?":"ue",
"?":"um",
"?":"v",
"?":"v",
"?":"v",
"?":"v",
"?":"v",
"?":"v",
"?":"v",
"?":"vy",
"?":"w",
"w":"w",
"?":"w",
"?":"w",
"?":"w",
"?":"w",
"?":"w",
"?":"w",
"?":"x",
"?":"x",
"?":"x",
"ý":"y",
"y":"y",
"ÿ":"y",
"?":"y",
"?":"y",
"?":"y",
"?":"y",
"?":"y",
"?":"y",
"?":"y",
"?":"y",
"?":"y",
"?":"y",
"z":"z",
"ž":"z",
"?":"z",
"?":"z",
"?":"z",
"z":"z",
"?":"z",
"?":"z",
"?":"z",
"?":"z",
"?":"z",
"?":"z",
"z":"z",
"?":"z",
"?":"ff",
"?":"ffi",
"?":"ffl",
"?":"fi",
"?":"fl",
"?":"ij",
"œ":"oe",
"?":"st",
"?":"a",
"?":"e",
"?":"i",
"?":"j",
"?":"o",
"?":"r",
"?":"u",
"?":"v",
"?":"x"};
String.prototype.latinise=function(){return this.replace(/[^A-Za-z0-9\[\] ]/g,function(a){return Latinise.latin_map[a]||a})};
String.prototype.latinize=String.prototype.latinise;
String.prototype.isLatin=function(){return this==this.latinise()}
Some examples:
> "Piqué".latinize();
"Pique"
> "Piqué".isLatin();
false
> "Pique".isLatin();
true
> "Piqué".latinise().isLatin();
true
You can use grouping, and get the first car from each group:
List<Car> distinct =
cars
.GroupBy(car => car.CarCode)
.Select(g => g.First())
.ToList();
I would do it this way:
import sys
def main(argv):
if len(argv) < 2:
sys.stderr.write("Usage: %s <database>" % (argv[0],))
return 1
if not os.path.exists(argv[1]):
sys.stderr.write("ERROR: Database %r was not found!" % (argv[1],))
return 1
if __name__ == "__main__":
sys.exit(main(sys.argv))
This allows main()
to be imported into other modules if desired, and simplifies debugging because you can choose what argv
should be.
Check the current value of your "readonly" attribute, if it's "false" (a string) or empty (undefined or "") then it's not readonly.
$('input').each(function() {
var readonly = $(this).attr("readonly");
if(readonly && readonly.toLowerCase()!=='false') { // this is readonly
alert('this is a read only field');
}
});
while 1:
root.update()
... is (very!) roughly similar to:
root.mainloop()
The difference is, mainloop
is the correct way to code and the infinite loop is subtly incorrect. I suspect, though, that the vast majority of the time, either will work. It's just that mainloop
is a much cleaner solution. After all, calling mainloop
is essentially this under the covers:
while the_window_has_not_been_destroyed():
wait_until_the_event_queue_is_not_empty()
event = event_queue.pop()
event.handle()
... which, as you can see, isn't much different than your own while loop. So, why create your own infinite loop when tkinter already has one you can use?
Put in the simplest terms possible: always call mainloop
as the last logical line of code in your program. That's how Tkinter was designed to be used.
There is a nice comparison of the 3 mature Java libraries for SFTP: Commons VFS, SSHJ and JSch
To sum up SSHJ has the clearest API and it's the best out of them if you don't need other storages support provided by Commons VFS.
Here is edited SSHJ example from github:
final SSHClient ssh = new SSHClient();
ssh.loadKnownHosts(); // or, to skip host verification: ssh.addHostKeyVerifier(new PromiscuousVerifier())
ssh.connect("localhost");
try {
ssh.authPassword("user", "password"); // or ssh.authPublickey(System.getProperty("user.name"))
final SFTPClient sftp = ssh.newSFTPClient();
try {
sftp.get("test_file", "/tmp/test.tmp");
} finally {
sftp.close();
}
} finally {
ssh.disconnect();
}
Just add this...or you can change the colors as per your demand.
Highcharts.setOptions({
colors: ['#811010', '#50B432', '#ED561B', '#DDDF00', '#24CBE5', '#64E572', '#FF9655', '#FFF263', '#6AF9C4'],
plotOptions: {
column: {
colorByPoint: true
}
}
});
I recently had a similar issue with SourceTree: any time I tried to push/pull/fetch to/from the remote origin I would get an authentication error (using SourceTree with Stash). Sometimes I would be challenge in Stash with a CAPTCHA but it never made a difference if I provided the correct information or not.
For me, we're using SourceTree and Stash in a corporate environment; user accounts are based on network credentials. Part of our network security requires us to change those passwords on a regular basis.
I was operating under the assumption that SourceTree/Stash was "aware" of any change made to my network password. But apparently -- at least in this instance -- it was not.
To fix, all I needed to do was:
Tools > Options > Authentication > Edit (Edit Password)
I set the password to match my current network password and everything began working as expected.
Not sure if this helps the OP but I hope it may help someone else looking for answers to a similar issue.
using : New Java 7 NIO library, try
if(!Files.exists(filePath.getParent())) {
Files.createDirectory(filePath.getParent());
}
if(!Files.exists(filePath)) {
Files.createFile(filePath);
}
// Empty the file content
writer = Files.newBufferedWriter(filePath);
writer.write("");
writer.flush();
The above code checks if Directoty exist if not creates the directory, checks if file exists is yes it writes empty string and flushes the buffer, in the end yo get the writer pointing to empty file
uint16_t
is guaranteed to be a unsigned integer that is 16 bits large
unsigned short int
is guaranteed to be a unsigned short integer
, where short integer
is defined by the compiler (and potentially compiler flags) you are currently using. For most compilers for x86 hardware a short integer
is 16 bits large.
Also note that per the ANSI C standard only the minimum size of 16 bits is defined, the maximum size is up to the developer of the compiler
Minimum Type Limits
Any compiler conforming to the Standard must also respect the following limits with respect to the range of values any particular type may accept. Note that these are lower limits: an implementation is free to exceed any or all of these. Note also that the minimum range for a char is dependent on whether or not a char is considered to be signed or unsigned.
Type Minimum Range
signed char -127 to +127 unsigned char 0 to 255 short int -32767 to +32767 unsigned short int 0 to 65535
Unfortunately you're probably done with the animation and presentation already. In the hopes this answer can help future questioners, however, this blog post has a walkthrough of steps that can loop a single slide as a sort of sub-presentation.
First, click Slide Show > Set Up Show.
Put a checkmark to Loop continuously until 'Esc'.
Click Ok. Now, Click Slide Show > Custom Shows. Click New.
Select the slide you are looping, click Add. Click Ok and Close.
Click on the slide you are looping. Click Slide Show > Slide Transition. Under Advance slide, put a checkmark to Automatically After. This will allow the slide to loop automatically. Do NOT Apply to all slides.
Right click on the thumbnail of the current slide, select Hide Slide.
Now, you will need to insert a new slide just before the slide you are looping. On the new slide, insert an action button. Set the hyperlink to the custom show you have created. Put a checkmark on "Show and Return"
This has worked for me.
This indicates the linux has delivered a SIGTERM
to your process. This is usually at the request of some other process (via kill()
) but could also be sent by your process to itself (using raise()
). This signal requests an orderly shutdown of your process.
If you need a quick cheatsheet of signal numbers, open a bash shell and:
$ kill -l
1) SIGHUP 2) SIGINT 3) SIGQUIT 4) SIGILL
5) SIGTRAP 6) SIGABRT 7) SIGBUS 8) SIGFPE
9) SIGKILL 10) SIGUSR1 11) SIGSEGV 12) SIGUSR2
13) SIGPIPE 14) SIGALRM 15) SIGTERM 16) SIGSTKFLT
17) SIGCHLD 18) SIGCONT 19) SIGSTOP 20) SIGTSTP
21) SIGTTIN 22) SIGTTOU 23) SIGURG 24) SIGXCPU
25) SIGXFSZ 26) SIGVTALRM 27) SIGPROF 28) SIGWINCH
29) SIGIO 30) SIGPWR 31) SIGSYS 34) SIGRTMIN
35) SIGRTMIN+1 36) SIGRTMIN+2 37) SIGRTMIN+3 38) SIGRTMIN+4
39) SIGRTMIN+5 40) SIGRTMIN+6 41) SIGRTMIN+7 42) SIGRTMIN+8
43) SIGRTMIN+9 44) SIGRTMIN+10 45) SIGRTMIN+11 46) SIGRTMIN+12
47) SIGRTMIN+13 48) SIGRTMIN+14 49) SIGRTMIN+15 50) SIGRTMAX-14
51) SIGRTMAX-13 52) SIGRTMAX-12 53) SIGRTMAX-11 54) SIGRTMAX-10
55) SIGRTMAX-9 56) SIGRTMAX-8 57) SIGRTMAX-7 58) SIGRTMAX-6
59) SIGRTMAX-5 60) SIGRTMAX-4 61) SIGRTMAX-3 62) SIGRTMAX-2
63) SIGRTMAX-1 64) SIGRTMAX
You can determine the sender by using an appropriate signal handler like:
#include <signal.h>
#include <stdio.h>
#include <stdlib.h>
void sigterm_handler(int signal, siginfo_t *info, void *_unused)
{
fprintf(stderr, "Received SIGTERM from process with pid = %u\n",
info->si_pid);
exit(0);
}
int main (void)
{
struct sigaction action = {
.sa_handler = NULL,
.sa_sigaction = sigterm_handler,
.sa_mask = 0,
.sa_flags = SA_SIGINFO,
.sa_restorer = NULL
};
sigaction(SIGTERM, &action, NULL);
sleep(60);
return 0;
}
Notice that the signal handler also includes a call to exit()
. It's also possible for your program to continue to execute by ignoring the signal, but this isn't recommended in general (if it's a user doing it there's a good chance it will be followed by a SIGKILL if your process doesn't exit, and you lost your opportunity to do any cleanup then).
Another alternative: HigLabo
https://higlabo.codeplex.com/documentation
Good discussion: https://higlabo.codeplex.com/discussions/479250
//====Imap sample================================//
//You can set default value by Default property
ImapClient.Default.UserName = "your server name";
ImapClient cl = new ImapClient("your server name");
cl.UserName = "your name";
cl.Password = "pass";
cl.Ssl = false;
if (cl.Authenticate() == true)
{
Int32 MailIndex = 1;
//Get all folder
List<ImapFolder> l = cl.GetAllFolders();
ImapFolder rFolder = cl.SelectFolder("INBOX");
MailMessage mg = cl.GetMessage(MailIndex);
}
//Delete selected mail from mailbox
ImapClient pop = new ImapClient("server name", 110, "user name", "pass");
pop.AuthenticateMode = Pop3AuthenticateMode.Pop;
Int64[] DeleteIndexList = new.....//It depend on your needs
cl.DeleteEMail(DeleteIndexList);
//Get unread message list from GMail
using (ImapClient cl = new ImapClient("imap.gmail.com"))
{
cl.Port = 993;
cl.Ssl = true;
cl.UserName = "xxxxx";
cl.Password = "yyyyy";
var bl = cl.Authenticate();
if (bl == true)
{
//Select folder
ImapFolder folder = cl.SelectFolder("[Gmail]/All Mail");
//Search Unread
SearchResult list = cl.ExecuteSearch("UNSEEN UNDELETED");
//Get all unread mail
for (int i = 0; i < list.MailIndexList.Count; i++)
{
mg = cl.GetMessage(list.MailIndexList[i]);
}
}
//Change mail read state as read
cl.ExecuteStore(1, StoreItem.FlagsReplace, "UNSEEN")
}
//Create draft mail to mailbox
using (ImapClient cl = new ImapClient("imap.gmail.com"))
{
cl.Port = 993;
cl.Ssl = true;
cl.UserName = "xxxxx";
cl.Password = "yyyyy";
var bl = cl.Authenticate();
if (bl == true)
{
var smg = new SmtpMessage("from mail address", "to mail addres list"
, "cc mail address list", "This is a test mail.", "Hi.It is my draft mail");
cl.ExecuteAppend("GMail/Drafts", smg.GetDataText(), "\\Draft", DateTimeOffset.Now);
}
}
//Idle
using (var cl = new ImapClient("imap.gmail.com", 993, "user name", "pass"))
{
cl.Ssl = true;
cl.ReceiveTimeout = 10 * 60 * 1000;//10 minute
if (cl.Authenticate() == true)
{
var l = cl.GetAllFolders();
ImapFolder r = cl.SelectFolder("INBOX");
//You must dispose ImapIdleCommand object
using (var cm = cl.CreateImapIdleCommand()) Caution! Ensure dispose command object
{
//This handler is invoked when you receive a mesage from server
cm.MessageReceived += (Object o, ImapIdleCommandMessageReceivedEventArgs e) =>
{
foreach (var mg in e.MessageList)
{
String text = String.Format("Type is {0} Number is {1}", mg.MessageType, mg.Number);
Console.WriteLine(text);
}
};
cl.ExecuteIdle(cm);
while (true)
{
var line = Console.ReadLine();
if (line == "done")
{
cl.ExecuteDone(cm);
break;
}
}
}
}
}
.str.get
This is the simplest to specify string methods
# Setup
df = pd.DataFrame({'A': ['xyz', 'abc', 'foobar'], 'B': [123, 456, 789]})
df
A B
0 xyz 123
1 abc 456
2 foobar 789
df.dtypes
A object
B int64
dtype: object
For string (read:object
) type columns, use
df['C'] = df['A'].str[0]
# Similar to,
df['C'] = df['A'].str.get(0)
.str
handles NaNs by returning NaN as the output.
For non-numeric columns, an .astype
conversion is required beforehand, as shown in @Ed Chum's answer.
# Note that this won't work well if the data has NaNs.
# It'll return lowercase "n"
df['D'] = df['B'].astype(str).str[0]
df
A B C D
0 xyz 123 x 1
1 abc 456 a 4
2 foobar 789 f 7
There is enough evidence to suggest a simple list comprehension will work well here and probably be faster.
# For string columns
df['C'] = [x[0] for x in df['A']]
# For numeric columns
df['D'] = [str(x)[0] for x in df['B']]
df
A B C D
0 xyz 123 x 1
1 abc 456 a 4
2 foobar 789 f 7
If your data has NaNs, then you will need to handle this appropriately with an if
/else
in the list comprehension,
df2 = pd.DataFrame({'A': ['xyz', np.nan, 'foobar'], 'B': [123, 456, np.nan]})
df2
A B
0 xyz 123.0
1 NaN 456.0
2 foobar NaN
# For string columns
df2['C'] = [x[0] if isinstance(x, str) else np.nan for x in df2['A']]
# For numeric columns
df2['D'] = [str(x)[0] if pd.notna(x) else np.nan for x in df2['B']]
A B C D
0 xyz 123.0 x 1
1 NaN 456.0 NaN 4
2 foobar NaN f NaN
Let's do some timeit tests on some larger data.
df_ = df.copy()
df = pd.concat([df_] * 5000, ignore_index=True)
%timeit df.assign(C=df['A'].str[0])
%timeit df.assign(D=df['B'].astype(str).str[0])
%timeit df.assign(C=[x[0] for x in df['A']])
%timeit df.assign(D=[str(x)[0] for x in df['B']])
12 ms ± 253 µs per loop (mean ± std. dev. of 7 runs, 100 loops each)
27.1 ms ± 1.38 ms per loop (mean ± std. dev. of 7 runs, 10 loops each)
3.77 ms ± 110 µs per loop (mean ± std. dev. of 7 runs, 100 loops each)
7.84 ms ± 145 µs per loop (mean ± std. dev. of 7 runs, 100 loops each)
List comprehensions are 4x faster.
threading.get_ident()
works, or threading.current_thread().ident
(or threading.currentThread().ident
for Python < 2.6).
(2019) I used $('#'+id).removeAttr().off('click').on('click', function(){...});
I tried $('#'+id).off().on(...)
, but it wouldn't work to reset the onClick attribute every time it was called to be reset.
I use .on('click',function(){...});
to stay away from having to quote block all my javascript functions.
The O.P. could now use:
$(this).removeAttr('onclick').off('click').on('click', function(){
displayCalendar(document.prjectFrm[ia + 'dtSubDate'],'yyyy-mm-dd', this);
});
Where this came through for me is when my div was set with the onClick attribute set statically:
<div onclick = '...'>
Otherwise, if I only had a dynamically attached a listener to it, I would have used the $('#'+id).off().on('click', function(){...});
.
Without the off('click') my onClick listeners were being appended not replaced.
Sometimes it's asking the question that makes the answer jump out. The methods and extra arguments are listed on the ggplot2 wiki stat_smooth page.
Which is alluded to on the geom_smooth()
page with:
"See stat_smooth for examples of using built in model fitting if you need some more flexible, this example shows you how to plot the fits from any model of your choosing".
It's not the first time I've seen arguments in examples for ggplot graphs that aren't specifically in the function. It does make it tough to work out the scope of each function, or maybe I am yet to stumble upon a magic explicit list that says what will and will not work within each function.
Try:
String text= br.readLine();
while (text != null)
{
System.out.println(text);
text=br.readLine();
}
in.close();
Bash script to convert each page of a PDF into its own SVG file.
#!/bin/bash
#
# Make one PDF per page using PDF toolkit.
# Convert this PDF to SVG using inkscape
#
inputPdf=$1
pageCnt=$(pdftk $inputPdf dump_data | grep NumberOfPages | cut -d " " -f 2)
for i in $(seq 1 $pageCnt); do
echo "converting page $i..."
pdftk ${inputPdf} cat $i output ${inputPdf%%.*}_${i}.pdf
inkscape --without-gui "--file=${inputPdf%%.*}_${i}.pdf" "--export-plain-svg=${inputPdf%%.*}_${i}.svg"
done
To generate in png, use --export-png
, etc...
Firstly you need to install a SSH server in the images you wish to ssh-into. You can use a base image for all your container with the ssh server installed.
Then you only have to run each container mapping the ssh port (default 22) to one to the host's ports (Remote Server in your image), using -p <hostPort>:<containerPort>
. i.e:
docker run -p 52022:22 container1
docker run -p 53022:22 container2
Then, if ports 52022 and 53022 of host's are accessible from outside, you can directly ssh to the containers using the ip of the host (Remote Server) specifying the port in ssh with -p <port>
. I.e.:
ssh -p 52022 myuser@RemoteServer
--> SSH to container1
ssh -p 53022 myuser@RemoteServer
--> SSH to container2
In order to write into a file in Python, we need to open it in write w
, append a
or exclusive creation x
mode.
We need to be careful with the w
mode, as it will overwrite into the file if it already exists. Due to this, all the previous data are erased.
Writing a string or sequence of bytes (for binary files) is done using the write() method. This method returns the number of characters written to the file.
with open('Failed.py','w',encoding = 'utf-8') as f:
f.write("Write what you want to write in\n")
f.write("this file\n\n")
This program will create a new file named Failed.py
in the current directory if it does not exist. If it does exist, it is overwritten.
We must include the newline characters ourselves to distinguish the different lines.
# Close STDOUT file descriptor
exec 1<&-
# Close STDERR FD
exec 2<&-
# Open STDOUT as $LOG_FILE file for read and write.
exec 1<>$LOG_FILE
# Redirect STDERR to STDOUT
exec 2>&1
echo "This line will appear in $LOG_FILE, not 'on screen'"
Now, simple echo will write to $LOG_FILE. Useful for daemonizing.
To the author of the original post,
It depends what you need to achieve. If you just need to redirect in/out of a command you call from your script, the answers are already given. Mine is about redirecting within current script which affects all commands/built-ins(includes forks) after the mentioned code snippet.
Another cool solution is about redirecting to both std-err/out AND to logger or log file at once which involves splitting "a stream" into two. This functionality is provided by 'tee' command which can write/append to several file descriptors(files, sockets, pipes, etc) at once: tee FILE1 FILE2 ... >(cmd1) >(cmd2) ...
exec 3>&1 4>&2 1> >(tee >(logger -i -t 'my_script_tag') >&3) 2> >(tee >(logger -i -t 'my_script_tag') >&4)
trap 'cleanup' INT QUIT TERM EXIT
get_pids_of_ppid() {
local ppid="$1"
RETVAL=''
local pids=`ps x -o pid,ppid | awk "\\$2 == \\"$ppid\\" { print \\$1 }"`
RETVAL="$pids"
}
# Needed to kill processes running in background
cleanup() {
local current_pid element
local pids=( "$$" )
running_pids=("${pids[@]}")
while :; do
current_pid="${running_pids[0]}"
[ -z "$current_pid" ] && break
running_pids=("${running_pids[@]:1}")
get_pids_of_ppid $current_pid
local new_pids="$RETVAL"
[ -z "$new_pids" ] && continue
for element in $new_pids; do
running_pids+=("$element")
pids=("$element" "${pids[@]}")
done
done
kill ${pids[@]} 2>/dev/null
}
So, from the beginning. Let's assume we have terminal connected to /dev/stdout(FD #1) and /dev/stderr(FD #2). In practice, it could be a pipe, socket or whatever.
The result of running a script having the above line and additionally this one:
echo "Will end up in STDOUT(terminal) and /var/log/messages"
...is as follows:
$ ./my_script
Will end up in STDOUT(terminal) and /var/log/messages
$ tail -n1 /var/log/messages
Sep 23 15:54:03 wks056 my_script_tag[11644]: Will end up in STDOUT(terminal) and /var/log/messages
If you want to see clearer picture, add these 2 lines to the script:
ls -l /proc/self/fd/
ps xf
SELECT CASE WHEN field IS NULL THEN 'Empty' ELSE field END AS field_alias
Or more idiomatic:
SELECT coalesce(field, 'Empty') AS field_alias
Since react-router v5.1 with hooks:
import { useParams } from 'react-router';
export default function DetailsPage() {
const { id } = useParams();
}
USE THIS ONLY IF YOU HAVE LIMITED NUMBER OF ITEMS IN YOUR RECYCLER VIEW.
I tried using boolean value in model and keep the checkbox status, but it did not help in my case.
What worked for me is this.setIsRecyclable(false);
public class ComponentViewHolder extends RecyclerView.ViewHolder {
public MyViewHolder(View itemView) {
super(itemView);
....
this.setIsRecyclable(false);
}
More explanation on this can be found here https://developer.android.com/reference/android/support/v7/widget/RecyclerView.ViewHolder.html#isRecyclable()
NOTE: This is a workaround. To use it properly you can refer the document which states "Calls to setIsRecyclable() should always be paired (one call to setIsRecyclabe(false) should always be matched with a later call to setIsRecyclable(true)). Pairs of calls may be nested, as the state is internally reference-counted." I don't know how to do this in code, if someone can provide more code on this.
You can override UIButton
's setHighlighted
method.
Objective-C
- (void)setHighlighted:(BOOL)highlighted {
[super setHighlighted:highlighted];
if (highlighted) {
self.backgroundColor = UIColorFromRGB(0x387038);
} else {
self.backgroundColor = UIColorFromRGB(0x5bb75b);
}
}
Swift 3.0 and Swift 4.1
override open var isHighlighted: Bool {
didSet {
backgroundColor = isHighlighted ? UIColor.black : UIColor.white
}
}
NSIndexPath * index = [self.menuTableView indexPathForSelectedRow];
[self.menuTableView deselectRowAtIndexPath:index animated:NO];
place this code according to your code and you will get your cell deselected.
I combined the solutions by Micah Hainline, Alex Balu?, and Paul Imhoff to create an ellipsizing multiline TextView
that also supports Spanned
text.
You only need to set android:ellipsize
and android:maxLines
.
/*
* Copyright (C) 2011 Micah Hainline
* Copyright (C) 2012 Triposo
* Copyright (C) 2013 Paul Imhoff
* Copyright (C) 2014 Shahin Yousefi
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
import android.annotation.SuppressLint;
import android.content.Context;
import android.content.res.TypedArray;
import android.graphics.Canvas;
import android.support.annotation.NonNull;
import android.text.Layout;
import android.text.Layout.Alignment;
import android.text.SpannableStringBuilder;
import android.text.Spanned;
import android.text.StaticLayout;
import android.text.TextUtils;
import android.text.TextUtils.TruncateAt;
import android.util.AttributeSet;
import android.widget.TextView;
import java.util.ArrayList;
import java.util.List;
import java.util.regex.Pattern;
public class EllipsizingTextView extends TextView {
private static final CharSequence ELLIPSIS = "\u2026";
private static final Pattern DEFAULT_END_PUNCTUATION
= Pattern.compile("[\\.!?,;:\u2026]*$", Pattern.DOTALL);
private final List<EllipsizeListener> mEllipsizeListeners = new ArrayList<>();
private EllipsizeStrategy mEllipsizeStrategy;
private boolean isEllipsized;
private boolean isStale;
private boolean programmaticChange;
private CharSequence mFullText;
private int mMaxLines;
private float mLineSpacingMult = 1.0f;
private float mLineAddVertPad = 0.0f;
private Pattern mEndPunctPattern;
public EllipsizingTextView(Context context) {
this(context, null);
}
public EllipsizingTextView(Context context, AttributeSet attrs) {
this(context, attrs, android.R.attr.textViewStyle);
}
public EllipsizingTextView(Context context, AttributeSet attrs, int defStyle) {
super(context, attrs, defStyle);
TypedArray a = context.obtainStyledAttributes(attrs,
new int[]{ android.R.attr.maxLines }, defStyle, 0);
setMaxLines(a.getInt(0, Integer.MAX_VALUE));
a.recycle();
setEndPunctuationPattern(DEFAULT_END_PUNCTUATION);
}
public void setEndPunctuationPattern(Pattern pattern) {
mEndPunctPattern = pattern;
}
public void addEllipsizeListener(@NonNull EllipsizeListener listener) {
mEllipsizeListeners.add(listener);
}
public void removeEllipsizeListener(EllipsizeListener listener) {
mEllipsizeListeners.remove(listener);
}
public boolean isEllipsized() {
return isEllipsized;
}
@SuppressLint("Override")
public int getMaxLines() {
return mMaxLines;
}
@Override
public void setMaxLines(int maxLines) {
super.setMaxLines(maxLines);
mMaxLines = maxLines;
isStale = true;
}
public boolean ellipsizingLastFullyVisibleLine() {
return mMaxLines == Integer.MAX_VALUE;
}
@Override
public void setLineSpacing(float add, float mult) {
mLineAddVertPad = add;
mLineSpacingMult = mult;
super.setLineSpacing(add, mult);
}
@Override
public void setText(CharSequence text, BufferType type) {
if (!programmaticChange) {
mFullText = text;
isStale = true;
}
super.setText(text, type);
}
@Override
protected void onSizeChanged(int w, int h, int oldw, int oldh) {
super.onSizeChanged(w, h, oldw, oldh);
if (ellipsizingLastFullyVisibleLine()) isStale = true;
}
@Override
public void setPadding(int left, int top, int right, int bottom) {
super.setPadding(left, top, right, bottom);
if (ellipsizingLastFullyVisibleLine()) isStale = true;
}
@Override
protected void onDraw(@NonNull Canvas canvas) {
if (isStale) resetText();
super.onDraw(canvas);
}
private void resetText() {
int maxLines = getMaxLines();
CharSequence workingText = mFullText;
boolean ellipsized = false;
if (maxLines != -1) {
if (mEllipsizeStrategy == null) setEllipsize(null);
workingText = mEllipsizeStrategy.processText(mFullText);
ellipsized = !mEllipsizeStrategy.isInLayout(mFullText);
}
if (!workingText.equals(getText())) {
programmaticChange = true;
try {
setText(workingText);
} finally {
programmaticChange = false;
}
}
isStale = false;
if (ellipsized != isEllipsized) {
isEllipsized = ellipsized;
for (EllipsizeListener listener : mEllipsizeListeners) {
listener.ellipsizeStateChanged(ellipsized);
}
}
}
@Override
public void setEllipsize(TruncateAt where) {
if (where == null) {
mEllipsizeStrategy = new EllipsizeNoneStrategy();
return;
}
switch (where) {
case END:
mEllipsizeStrategy = new EllipsizeEndStrategy();
break;
case START:
mEllipsizeStrategy = new EllipsizeStartStrategy();
break;
case MIDDLE:
mEllipsizeStrategy = new EllipsizeMiddleStrategy();
break;
case MARQUEE:
super.setEllipsize(where);
isStale = false;
default:
mEllipsizeStrategy = new EllipsizeNoneStrategy();
break;
}
}
public interface EllipsizeListener {
void ellipsizeStateChanged(boolean ellipsized);
}
private abstract class EllipsizeStrategy {
public CharSequence processText(CharSequence text) {
return !isInLayout(text) ? createEllipsizedText(text) : text;
}
public boolean isInLayout(CharSequence text) {
Layout layout = createWorkingLayout(text);
return layout.getLineCount() <= getLinesCount();
}
protected Layout createWorkingLayout(CharSequence workingText) {
return new StaticLayout(workingText, getPaint(),
getMeasuredWidth() - getPaddingLeft() - getPaddingRight(),
Alignment.ALIGN_NORMAL, mLineSpacingMult,
mLineAddVertPad, false /* includepad */);
}
protected int getLinesCount() {
if (ellipsizingLastFullyVisibleLine()) {
int fullyVisibleLinesCount = getFullyVisibleLinesCount();
return fullyVisibleLinesCount == -1 ? 1 : fullyVisibleLinesCount;
} else {
return mMaxLines;
}
}
protected int getFullyVisibleLinesCount() {
Layout layout = createWorkingLayout("");
int height = getHeight() - getCompoundPaddingTop() - getCompoundPaddingBottom();
int lineHeight = layout.getLineBottom(0);
return height / lineHeight;
}
protected abstract CharSequence createEllipsizedText(CharSequence fullText);
}
private class EllipsizeNoneStrategy extends EllipsizeStrategy {
@Override
protected CharSequence createEllipsizedText(CharSequence fullText) {
return fullText;
}
}
private class EllipsizeEndStrategy extends EllipsizeStrategy {
@Override
protected CharSequence createEllipsizedText(CharSequence fullText) {
Layout layout = createWorkingLayout(fullText);
int cutOffIndex = layout.getLineEnd(mMaxLines - 1);
int textLength = fullText.length();
int cutOffLength = textLength - cutOffIndex;
if (cutOffLength < ELLIPSIS.length()) cutOffLength = ELLIPSIS.length();
String workingText = TextUtils.substring(fullText, 0, textLength - cutOffLength).trim();
String strippedText = stripEndPunctuation(workingText);
while (!isInLayout(strippedText + ELLIPSIS)) {
int lastSpace = workingText.lastIndexOf(' ');
if (lastSpace == -1) break;
workingText = workingText.substring(0, lastSpace).trim();
strippedText = stripEndPunctuation(workingText);
}
workingText = strippedText + ELLIPSIS;
SpannableStringBuilder dest = new SpannableStringBuilder(workingText);
if (fullText instanceof Spanned) {
TextUtils.copySpansFrom((Spanned) fullText, 0, workingText.length(), null, dest, 0);
}
return dest;
}
public String stripEndPunctuation(CharSequence workingText) {
return mEndPunctPattern.matcher(workingText).replaceFirst("");
}
}
private class EllipsizeStartStrategy extends EllipsizeStrategy {
@Override
protected CharSequence createEllipsizedText(CharSequence fullText) {
Layout layout = createWorkingLayout(fullText);
int cutOffIndex = layout.getLineEnd(mMaxLines - 1);
int textLength = fullText.length();
int cutOffLength = textLength - cutOffIndex;
if (cutOffLength < ELLIPSIS.length()) cutOffLength = ELLIPSIS.length();
String workingText = TextUtils.substring(fullText, cutOffLength, textLength).trim();
while (!isInLayout(ELLIPSIS + workingText)) {
int firstSpace = workingText.indexOf(' ');
if (firstSpace == -1) break;
workingText = workingText.substring(firstSpace, workingText.length()).trim();
}
workingText = ELLIPSIS + workingText;
SpannableStringBuilder dest = new SpannableStringBuilder(workingText);
if (fullText instanceof Spanned) {
TextUtils.copySpansFrom((Spanned) fullText, textLength - workingText.length(),
textLength, null, dest, 0);
}
return dest;
}
}
private class EllipsizeMiddleStrategy extends EllipsizeStrategy {
@Override
protected CharSequence createEllipsizedText(CharSequence fullText) {
Layout layout = createWorkingLayout(fullText);
int cutOffIndex = layout.getLineEnd(mMaxLines - 1);
int textLength = fullText.length();
int cutOffLength = textLength - cutOffIndex;
if (cutOffLength < ELLIPSIS.length()) cutOffLength = ELLIPSIS.length();
cutOffLength += cutOffIndex % 2; // Make it even.
String firstPart = TextUtils.substring(
fullText, 0, textLength / 2 - cutOffLength / 2).trim();
String secondPart = TextUtils.substring(
fullText, textLength / 2 + cutOffLength / 2, textLength).trim();
while (!isInLayout(firstPart + ELLIPSIS + secondPart)) {
int lastSpaceFirstPart = firstPart.lastIndexOf(' ');
int firstSpaceSecondPart = secondPart.indexOf(' ');
if (lastSpaceFirstPart == -1 || firstSpaceSecondPart == -1) break;
firstPart = firstPart.substring(0, lastSpaceFirstPart).trim();
secondPart = secondPart.substring(firstSpaceSecondPart, secondPart.length()).trim();
}
SpannableStringBuilder firstDest = new SpannableStringBuilder(firstPart);
SpannableStringBuilder secondDest = new SpannableStringBuilder(secondPart);
if (fullText instanceof Spanned) {
TextUtils.copySpansFrom((Spanned) fullText, 0, firstPart.length(),
null, firstDest, 0);
TextUtils.copySpansFrom((Spanned) fullText, textLength - secondPart.length(),
textLength, null, secondDest, 0);
}
return TextUtils.concat(firstDest, ELLIPSIS, secondDest);
}
}
}
Complete source: EllipsizingTextView.java
Two of the creators of UNIX, Brian Kernighan and Rob Pike, explain this in their book "The UNIX Programming Environment". Google for the title and you'll easily find a pdf version.
They address shell variables in section 3.6, and focus on the use of the export
command at the end of that section:
When you want to make the value of a variable accessible in sub-shells, the shell's export command should be used. (You might think about why there is no way to export the value of a variable from a sub-shell to its parent).
There actually doesn't seem to be a lot of explanation on this subject apparently but the exit codes are supposed to be used to give an indication on how the thread exited, 0
tends to mean that it exited safely whilst anything else tends to mean it didn't exit as expected. But then this exit code can be set in code by yourself to completely overlook this.
The closest link I could find to be useful for more information is this
Quote from above link:
What ever the method of exiting, the integer that you return from your process or thread must be values from 0-255(8bits). A zero value indicates success, while a non zero value indicates failure. Although, you can attempt to return any integer value as an exit code, only the lowest byte of the integer is returned from your process or thread as part of an exit code. The higher order bytes are used by the operating system to convey special information about the process. The exit code is very useful in batch/shell programs which conditionally execute other programs depending on the success or failure of one.
From the Documentation for GetEXitCodeThread
Important The GetExitCodeThread function returns a valid error code defined by the application only after the thread terminates. Therefore, an application should not use STILL_ACTIVE (259) as an error code. If a thread returns STILL_ACTIVE (259) as an error code, applications that test for this value could interpret it to mean that the thread is still running and continue to test for the completion of the thread after the thread has terminated, which could put the application into an infinite loop.
My understanding of all this is that the exit code doesn't matter all that much if you are using threads within your own application for your own application. The exception to this is possibly if you are running a couple of threads at the same time that have a dependency on each other. If there is a requirement for an outside source to read this error code, then you can set it to let other applications know the status of your thread.
The number in parentheses specifies the precision of fractional seconds to be stored. So, (0)
would mean don't store any fraction of a second, and use only whole seconds. The default value if unspecified is 6 digits after the decimal separator.
So an unspecified value would store a date like:
TIMESTAMP 24-JAN-2012 08.00.05.993847 AM
And specifying (0)
stores only:
TIMESTAMP(0) 24-JAN-2012 08.00.05 AM
No, you cannot reference one rule-set from another.
You can, however, reuse selectors on multiple rule-sets within a stylesheet and use multiple selectors on a single rule-set (by separating them with a comma).
.opacity, .someDiv {
filter:alpha(opacity=60);
-moz-opacity:0.6;
-khtml-opacity: 0.6;
opacity: 0.6;
}
.radius, .someDiv {
border-top-left-radius: 15px;
border-top-right-radius: 5px;
-moz-border-radius-topleft: 10px;
-moz-border-radius-topright: 10px;
}
You can also apply multiple classes to a single HTML element (the class attribute takes a space separated list).
<div class="opacity radius">
Either of those approaches should solve your problem.
It would probably help if you used class names that described why an element should be styled instead of how it should be styled. Leave the how in the stylesheet.
I just stumbled upon a combination of Mixin and Extend:
.block1 { box-shadow: 0 5px 10px #000; }
.block2 { box-shadow: 5px 0 10px #000; }
.block3 { box-shadow: 0 0 1px #000; }
@mixin customExtend($class){ @extend .#{$class}; }
like: @include customExtend(block1);
h1 {color: fff; @include customExtend(block2);}
Sass will compile only the mixins content to the extended blocks, which makes it able to combine blocks without generating duplicate code. The Extend logic only puts the classname of the Mixin import location in the block1, ..., ... {box-shadow: 0 5px 10px #000;}
You can simply reverse a Linked List using only one Extra pointer. And the key to do this is by using a Recursion.
Here is the program in Java.
public class Node {
public int data;
public Node next;
}
public Node reverseLinkedListRecursion(Node p) {
if (p.next == null) {
head = p;
q = p;
return q;
} else {
reverseLinkedListRecursion(p.next);
p.next = null;
q.next = p;
q = p;
return head;
}
}
// call this function from your main method.
reverseLinkedListRecursion(head);
As you can see this is a simple example of a head recursion. We have mainly two different kinds of Recursion.
Here the program will keep calling itself Recursively until our Pointer "p" reaches to the last node and then before returning the stack frame we will point head to the last node and the extra Pointer "q" to build the linked list in the backward direction.
Here the Stack Frames will keep on returning until the stack is empty.
$data = array(
'name' => $_POST['name'] ,
'groupname' => $_POST['groupname'],
'age' => $_POST['age']
);
$this->db->where('id', $_POST['id']);
$this->db->update('tbl_user', $data);
Based on Alexey Ishkov's answer, but in Swift
I used an extension of the UIImage class.
Swift 2:
UIImage Extension:
extension UIImage {
func imageWithAlpha(alpha: CGFloat) -> UIImage {
UIGraphicsBeginImageContextWithOptions(size, false, scale)
drawAtPoint(CGPointZero, blendMode: .Normal, alpha: alpha)
let newImage = UIGraphicsGetImageFromCurrentImageContext()
UIGraphicsEndImageContext()
return newImage
}
}
To use:
let image = UIImage(named: "my_image")
let transparentImage = image.imageWithAlpha(0.5)
Swift 3/4/5:
Note that this implementation returns an optional UIImage. This is because in Swift 3 UIGraphicsGetImageFromCurrentImageContext
now returns an optional. This value could be nil if the context is nil or what not created with UIGraphicsBeginImageContext
.
UIImage Extension:
extension UIImage {
func image(alpha: CGFloat) -> UIImage? {
UIGraphicsBeginImageContextWithOptions(size, false, scale)
draw(at: .zero, blendMode: .normal, alpha: alpha)
let newImage = UIGraphicsGetImageFromCurrentImageContext()
UIGraphicsEndImageContext()
return newImage
}
}
To use:
let image = UIImage(named: "my_image")
let transparentImage = image?.image(alpha: 0.5)
With System.getProperty("user.dir")
you get the "Base of non-absolute paths" look at
best solution:
echo parse_url($_SERVER['REQUEST_URI'], PHP_URL_PATH);
No need to include your http://domain.com in your if you're submitting a form to the same domain.
You are simply sending signals to the processes. kill
is a command to send those signals.
The keyboard command Ctrl+C sends a SIGINT, kill -9
sends a SIGKILL, and kill -15
sends a SIGTERM.
What signal do you want to send to your server to end it?
Just another variation:
<body>
<button name="redirect" onClick="redirect()">
<script type="text/javascript">
function redirect()
{
var url = "http://www.(url).com";
window.location(url);
}
</script>
Use the following code:
foreach (string line in File.ReadAllLines(fileName))
This was a HUGE difference in reading performance.
It comes at the cost of memory consumption, but totally worth it!
You have to unlock your Mutex at sometime...
I came across this question when trying to check if a file existed on an FTP site or not. If the file doesn't exist there will be an error when trying to check its timestamp. But I want to make sure the error is not something else, by checking its type.
The Response
property on WebException
will be of type FtpWebResponse
on which you can check its StatusCode
property to see which FTP error you have.
Here's the code I ended up with:
public static bool FileExists(string host, string username, string password, string filename)
{
// create FTP request
FtpWebRequest request = (FtpWebRequest)WebRequest.Create("ftp://" + host + "/" + filename);
request.Credentials = new NetworkCredential(username, password);
// we want to get date stamp - to see if the file exists
request.Method = WebRequestMethods.Ftp.GetDateTimestamp;
try
{
FtpWebResponse response = (FtpWebResponse)request.GetResponse();
var lastModified = response.LastModified;
// if we get the last modified date then the file exists
return true;
}
catch (WebException ex)
{
var ftpResponse = (FtpWebResponse)ex.Response;
// if the status code is 'file unavailable' then the file doesn't exist
// may be different depending upon FTP server software
if (ftpResponse.StatusCode == FtpStatusCode.ActionNotTakenFileUnavailable)
{
return false;
}
// some other error - like maybe internet is down
throw;
}
}
From the code that you have provided, not knowing the language that you are programming in. The variable capital
is null. When you are trying to read the property length, the system cant as it is trying to deference a null variable. You need to define capital
.
I had a similar thing to do. Using
// ini_set("output_buffering", 0); // off
ini_set("zlib.output_compression", 0); // off
ini_set("implicit_flush", 1); // on
did make the output flushing frequent in my case.
But I had to flush the output right at a particular point(in a loop that I run), so using both
ob_flush();
flush();
together worked for me.
I wasn't able to turn off "output_buffering" with ini_set(...), had to turn it directly in php.ini, phpinfo() shows its setting as "no value" when turned off, is that normal? .
How about another abnormal termination example. This time adjust stack size to run out at 1000 recursions.
int main(int c, char **v)
{
static cnt=0;
char fill[12524];
printf("%d\n", cnt++);
main(c,v);
}
On my machine it prints 1 to 1000
995
996
997
998
999
1000
Segmentation fault (core dumped)
Use check_output
method of subprocess
module
import subprocess
address = '192.168.x.x'
res = subprocess.check_output(['ping', address, '-c', '3'])
Finally parse the string
for line in res.splitlines():
Hope it helps, happy coding
MS's query explaining the use of the KILL
command is quite useful providing connection's information:
SELECT conn.session_id, host_name, program_name,
nt_domain, login_name, connect_time, last_request_end_time
FROM sys.dm_exec_sessions AS sess
JOIN sys.dm_exec_connections AS conn
ON sess.session_id = conn.session_id;
I found a solution that works in the intel card and in the nvidia card using Bumblebee.
> export vblank_mode=0
glxgears
...
optirun glxgears
...
export vblank_mode=1
curl
without any options will perform a GET request. It will simply return the data from the URI specified. Not retrieve the file itself to your local machine.
When you do,
$ curl https://www.python.org/static/apple-touch-icon-144x144-precomposed.png
You will receive binary data:
|?>?$! <R?HP@T*?Pm?Z??jU???ZP+UAUQ@?
??{X\? K???>0c?yF[i?}4?!?V¸?H_?)nO#?;I??vg^_ ??-Hm$$N0.
???%Y[?L?U3?_^9??P?T?0'u8?l?4 ...
In order to save this, you can use:
$ curl https://www.python.org/static/apple-touch-icon-144x144-precomposed.png > image.png
to store that raw image data inside of a file.
An easier way though, is just to use wget
.
$ wget https://www.python.org/static/apple-touch-icon-144x144-precomposed.png
$ ls
.
..
apple-touch-icon-144x144-precomposed.png
My issue was similar to Q---ten's, but in my case it was that I had forgotten to provide the self argument to a class function:
class A:
def fn(a, b, c=True):
pass
Should become
class A:
def fn(self, a, b, c=True):
pass
This faulty implementation is hard to see when calling the class method as:
a_obj = A()
a.fn(a_val, b_val, c=False)
Which will yield a TypeError: got multiple values for argument
. Hopefully, the rest of the answers here are clear enough for anyone to be able to quickly understand and fix the error. If not, hope this answer helps you!
Another behaviour is that readonly = 'true'
controls will fire events like click
, buton Enabled = False
controls will not.
A solution with no libraries, dynamic length returned, unsigned integer interpretation (not two's complement)
public static byte[] numToBytes(int num){
if(num == 0){
return new byte[]{};
}else if(num < 256){
return new byte[]{ (byte)(num) };
}else if(num < 65536){
return new byte[]{ (byte)(num >>> 8),(byte)num };
}else if(num < 16777216){
return new byte[]{ (byte)(num >>> 16),(byte)(num >>> 8),(byte)num };
}else{ // up to 2,147,483,647
return new byte[]{ (byte)(num >>> 24),(byte)(num >>> 16),(byte)(num >>> 8),(byte)num };
}
}
Just to add to roya's answer. In c# 6.0 you can now use string interpolation:
Console.WriteLine($"{customer[DisplayPos],10}" +
$"{salesFigures[DisplayPos],10}" +
$"{feePayable[DisplayPos],10}" +
$"{seventyPercentValue,10}" +
$"{thirtyPercentValue,10}");
This can actually be one line without all the extra dollars, I just think it makes it a bit easier to read like this.
And you could also use a static import on System.Console, allowing you to do this:
using static System.Console;
WriteLine(/* write stuff */);
The default JavaScript "API" for setting a cookie is as easy as:
document.cookie = 'mycookie=valueOfCookie;expires=DateHere;path=/'
Use the jQuery cookie plugin like:
$.cookie('mycookie', 'valueOfCookie')
This looks like a behavior difference in the handling of \s
between grep 2.5 and newer versions (a bug in old grep?). I confirm your result with grep 2.5.4, but all four of your greps do work when using grep 2.6.3 (Ubuntu 10.10).
Note:
GNU grep 2.5.4
echo "foo bar" | grep "\s"
(doesn't match)
whereas
GNU grep 2.6.3
echo "foo bar" | grep "\s"
foo bar
Probably less trouble (as \s
is not documented):
Both GNU greps
echo "foo bar" | grep "[[:space:]]"
foo bar
My advice is to avoid using \s
... use [ \t]*
or [[:space:]]
or something like it instead.
^(?!my)\w+$
should work.
It first ensures that it's not possible to match my
at the start of the string, and then matches alphanumeric characters until the end of the string. Whitespace anywhere in the string will cause the regex to fail. Depending on your input you might want to either strip whitespace in the front and back of the string before passing it to the regex, or use add optional whitespace matchers to the regex like ^\s*(?!my)(\w+)\s*$
. In this case, backreference 1 will contain the name of the variable.
And if you need to ensure that your variable name starts with a certain group of characters, say [A-Za-z_]
, use
^(?!my)[A-Za-z_]\w*$
Note the change from +
to *
.
Use the if __name__ == '__main__'
idiom -- __name__
is a special variable whose value is '__main__'
if the module is being run as a script, and the module name if it's imported. So you'd do something like
# imports
# class/function definitions
if __name__ == '__main__':
# code here will only run when you invoke 'python main.py'
Even the last example given on http://www.howtocreate.co.uk/tutorials/javascript/browserwindow is not working on Quirks mode. Easier to find than I thought, this seems to be the solution(extracted from latest jquery code):
Math.max(
document.documentElement["clientWidth"],
document.body["scrollWidth"],
document.documentElement["scrollWidth"],
document.body["offsetWidth"],
document.documentElement["offsetWidth"]
);
just replace Width for "Height" to get Height.
If you're posting a json body, dont use the form
parameter. Using form
will make the arrays into field[0].attribute
, field[1].attribute
etc. Instead use body
like so.
var jsonDataObj = {'mes': 'hey dude', 'yo': ['im here', 'and here']};
request.post({
url: 'https://api.site.com',
body: jsonDataObj,
json: true
}, function(error, response, body){
console.log(body);
});
I doubt the standard library supports this.
But you can use the google maps utility library:
http://code.google.com/p/google-maps-utility-library-v3/wiki/Libraries#MarkerWithLabel
var myLatlng = new google.maps.LatLng(-25.363882,131.044922);
var myOptions = {
zoom: 8,
center: myLatlng,
mapTypeId: google.maps.MapTypeId.ROADMAP
};
map = new google.maps.Map(document.getElementById('map_canvas'), myOptions);
var marker = new MarkerWithLabel({
position: myLatlng,
map: map,
draggable: true,
raiseOnDrag: true,
labelContent: "A",
labelAnchor: new google.maps.Point(3, 30),
labelClass: "labels", // the CSS class for the label
labelInBackground: false
});
The basics about marker can be found here: https://developers.google.com/maps/documentation/javascript/overlays#Markers
Well, running example:
WARNING! NEVER DO THIS AT HOME/WORK! Only in classroom ;)
Use semaphores, shared variables, etc. to avoid rush conditions.
from threading import Thread
import time
a = 0 # global variable
def thread1(threadname):
global a
for k in range(100):
print("{} {}".format(threadname, a))
time.sleep(0.1)
if k == 5:
a += 100
def thread2(threadname):
global a
for k in range(10):
a += 1
time.sleep(0.2)
thread1 = Thread(target=thread1, args=("Thread-1",))
thread2 = Thread(target=thread2, args=("Thread-2",))
thread1.start()
thread2.start()
thread1.join()
thread2.join()
and the output:
Thread-1 0
Thread-1 1
Thread-1 2
Thread-1 2
Thread-1 3
Thread-1 3
Thread-1 104
Thread-1 104
Thread-1 105
Thread-1 105
Thread-1 106
Thread-1 106
Thread-1 107
Thread-1 107
Thread-1 108
Thread-1 108
Thread-1 109
Thread-1 109
Thread-1 110
Thread-1 110
Thread-1 110
Thread-1 110
Thread-1 110
Thread-1 110
Thread-1 110
Thread-1 110
If the timing were right, the a += 100
operation would be skipped:
Processor executes at T a+100
and gets 104. But it stops, and jumps to next thread
Here, At T+1 executes a+1
with old value of a, a == 4
. So it computes 5.
Jump back (at T+2), thread 1, and write a=104
in memory.
Now back at thread 2, time is T+3 and write a=5
in memory.
Voila! The next print instruction will print 5 instead of 104.
VERY nasty bug to be reproduced and caught.
Using emplace_back
function is way better than any other method since it creates an object in-place of type T
where vector<T>
, whereas push_back
expects an actual value from you.
vector<pair<string,double>> revenue;
// make_pair function constructs a pair objects which is expected by push_back
revenue.push_back(make_pair("cash", 12.32));
// emplace_back passes the arguments to the constructor
// function and gets the constructed object to the referenced space
revenue.emplace_back("cash", 12.32);
Is there any existing data that the table contains? If so, try to clear out all the data in the table you want to add a foreign key. Then run the code (add a foreign key) again.
I encountered this problem so many times. This clearing out the all data in the table works when you want to add foreign key on a existing table.
Hope this works :)
+----------------------+----------------------------------------------------------------------------+-----------------------------------------------------------------------------------------------------+
| Parameter | openSession | getCurrentSession |
+----------------------+----------------------------------------------------------------------------+-----------------------------------------------------------------------------------------------------+
| Session creation | Always open new session | It opens a new Session if not exists , else use same session which is in current hibernate context. |
+----------------------+----------------------------------------------------------------------------+-----------------------------------------------------------------------------------------------------+
| Session close | Need to close the session object once all the database operations are done | No need to close the session. Once the session factory is closed, this session object is closed. |
+----------------------+----------------------------------------------------------------------------+-----------------------------------------------------------------------------------------------------+
| Flush and close | Need to explicity flush and close session objects | No need to flush and close sessions , since it is automatically taken by hibernate internally. |
+----------------------+----------------------------------------------------------------------------+-----------------------------------------------------------------------------------------------------+
| Performance | In single threaded environment , it is slower than getCurrentSession | In single threaded environment , it is faster than openSession |
+----------------------+----------------------------------------------------------------------------+-----------------------------------------------------------------------------------------------------+
| Configuration | No need to configure any property to call this method | Need to configure additional property: |
| | | <property name=""hibernate.current_session_context_class"">thread</property> |
+----------------------+----------------------------------------------------------------------------+-----------------------------------------------------------------------------------------------------+
Using TypedArray.from:
Uint8Array.from(atob(base64_string), c => c.charCodeAt(0))
Performance to be compared with the for loop version of Goran.it answer.