function SetCaretEnd(tID) {
tID += "";
if (!tID.startsWith("#")) { tID = "#" + tID; }
$(tID).focus();
var t = $(tID).val();
if (t.length == 0) { return; }
$(tID).val("");
$(tID).val(t);
$(tID).scrollTop($(tID)[0].scrollHeight); }
It is just a hint for the Service Provider on what to expect from the NameID returned by the Identity Provider. It can be:
unspecified
emailAddress
– e.g. [email protected]
X509SubjectName
– e.g. CN=john,O=Company Ltd.,C=US
WindowsDomainQualifiedName
– e.g. CompanyDomain\John
kerberos
– e.g. john@realm
entity
– this one in used to identify entities that provide SAML-based services and looks like a URIpersistent
– this is an opaque service-specific identifier which must include a pseudo-random value and must not be traceable to the actual user, so this is a privacy feature.transient
– opaque identifier which should be treated as temporary.Usually the situation where continue is necessary/useful, is when you want to skip the remaining code in the loop and continue iteration.
I don't really believe it's necessary, since you can always use if statements to provide the same logic, but it might be useful to increase readability of code.
Here is a little utility function that collapses a named or unnamed list of values to a single string for easier printing. It will also print the code line itself. It's from my list examples in R page.
Generate some lists named or unnamed:
# Define Lists
ls_num <- list(1,2,3)
ls_str <- list('1','2','3')
ls_num_str <- list(1,2,'3')
# Named Lists
ar_st_names <- c('e1','e2','e3')
ls_num_str_named <- ls_num_str
names(ls_num_str_named) <- ar_st_names
# Add Element to Named List
ls_num_str_named$e4 <- 'this is added'
Here is the a function that will convert named or unnamed list to string:
ffi_lst2str <- function(ls_list, st_desc, bl_print=TRUE) {
# string desc
if(missing(st_desc)){
st_desc <- deparse(substitute(ls_list))
}
# create string
st_string_from_list = paste0(paste0(st_desc, ':'),
paste(names(ls_list), ls_list, sep="=", collapse=";" ))
if (bl_print){
print(st_string_from_list)
}
}
Testing the function with the lists created prior:
> ffi_lst2str(ls_num)
[1] "ls_num:=1;=2;=3"
> ffi_lst2str(ls_str)
[1] "ls_str:=1;=2;=3"
> ffi_lst2str(ls_num_str)
[1] "ls_num_str:=1;=2;=3"
> ffi_lst2str(ls_num_str_named)
[1] "ls_num_str_named:e1=1;e2=2;e3=3;e4=this is added"
Testing the function with subset of list elements:
> ffi_lst2str(ls_num_str_named[c('e2','e3','e4')])
[1] "ls_num_str_named[c(\"e2\", \"e3\", \"e4\")]:e2=2;e3=3;e4=this is added"
> ffi_lst2str(ls_num[2:3])
[1] "ls_num[2:3]:=2;=3"
> ffi_lst2str(ls_str[2:3])
[1] "ls_str[2:3]:=2;=3"
> ffi_lst2str(ls_num_str[2:4])
[1] "ls_num_str[2:4]:=2;=3;=NULL"
> ffi_lst2str(ls_num_str_named[c('e2','e3','e4')])
[1] "ls_num_str_named[c(\"e2\", \"e3\", \"e4\")]:e2=2;e3=3;e4=this is added"
This is a String
extension written in Swift to return a HTML string as NSAttributedString
.
extension String {
func htmlAttributedString() -> NSAttributedString? {
guard let data = self.dataUsingEncoding(NSUTF16StringEncoding, allowLossyConversion: false) else { return nil }
guard let html = try? NSMutableAttributedString(data: data, options: [NSDocumentTypeDocumentAttribute: NSHTMLTextDocumentType], documentAttributes: nil) else { return nil }
return html
}
}
To use,
label.attributedText = "<b>Hello</b> \u{2022} babe".htmlAttributedString()
In the above, I have purposely added a unicode \u2022 to show that it renders unicode correctly.
A trivial: The default encoding that NSAttributedString
uses is NSUTF16StringEncoding
(not UTF8!).
Actually, valueOf
uses parseInt
internally. The difference is parseInt
returns an int
primitive while valueOf
returns an Integer
object. Consider from the Integer.class source:
public static int parseInt(String s) throws NumberFormatException {
return parseInt(s, 10);
}
public static Integer valueOf(String s, int radix) throws NumberFormatException {
return Integer.valueOf(parseInt(s, radix));
}
public static Integer valueOf(String s) throws NumberFormatException {
return Integer.valueOf(parseInt(s, 10));
}
As for parsing with a comma, I'm not familiar with one. I would sanitize them.
int million = Integer.parseInt("1,000,000".replace(",", ""));
i hope this will work too, try using"is_null"
<?php
$web = the_field('website');
if (!is_null($web)) {
?>
....html code here
<?php
} else {
echo "Niente";
}
?>
http://php.net/manual/en/function.is-null.php
hope that suits you..
Store connection string in web.config
It is a good practice to store the connection string for your application in a config file rather than as a hard coded string in your code. The way to do this differs between .NET 2.0 and .NET 3.5 (and above). This article cover both. https://www.connectionstrings.com/store-connection-string-in-webconfig/
You can use the isNaN function to determine if a value does not convert to a number. Example as below:
function checkInp()
{
var x=document.forms["myForm"]["age"].value;
if (isNaN(x))
{
alert("Must input numbers");
return false;
}
}
You can use a Union.
This will return the results of the queries in separate rows.
First you must make sure that both queries return identical columns.
Then you can do :
SELECT tableA.Id, tableA.Name, [tableB].Username AS Owner, [tableB].ImageUrl, [tableB].CompanyImageUrl, COUNT(tableD.UserId) AS Number
FROM tableD
RIGHT OUTER JOIN [tableB]
INNER JOIN tableA ON [tableB].Id = tableA.Owner ON tableD.tableAId = tableA.Id
GROUP BY tableA.Name, [tableB].Username, [tableB].ImageUrl, [tableB].CompanyImageUrl
UNION
SELECT tableA.Id, tableA.Name, '' AS Owner, '' AS ImageUrl, '' AS CompanyImageUrl, COUNT([tableC].Id) AS Number
FROM
[tableC]
RIGHT OUTER JOIN tableA ON [tableC].tableAId = tableA.Id GROUP BY tableA.Id, tableA.Name
As has been mentioned, both queries return quite different data. You would probably only want to do this if both queries return data that could be considered similar.
SO
You can use a Join
If there is some data that is shared between the two queries. This will put the results of both queries into a single row joined by the id, which is probably more what you want to be doing here...
You could do :
SELECT tableA.Id, tableA.Name, [tableB].Username AS Owner, [tableB].ImageUrl, [tableB].CompanyImageUrl, COUNT(tableD.UserId) AS NumberOfUsers, query2.NumberOfPlans
FROM tableD
RIGHT OUTER JOIN [tableB]
INNER JOIN tableA ON [tableB].Id = tableA.Owner ON tableD.tableAId = tableA.Id
INNER JOIN
(SELECT tableA.Id, COUNT([tableC].Id) AS NumberOfPlans
FROM [tableC]
RIGHT OUTER JOIN tableA ON [tableC].tableAId = tableA.Id
GROUP BY tableA.Id, tableA.Name) AS query2
ON query2.Id = tableA.Id
GROUP BY tableA.Name, [tableB].Username, [tableB].ImageUrl, [tableB].CompanyImageUrl
In PyQt there are a lot of options for getting asynchronous behavior. For things that need event processing (ie. QtNetwork, etc) you should use the QThread example I provided in my other answer on this thread. But for the vast majority of your threading needs, I think this solution is far superior than the other methods.
The advantage of this is that the QThreadPool schedules your QRunnable instances as tasks. This is similar to the task pattern used in Intel's TBB. It's not quite as elegant as I like but it does pull off excellent asynchronous behavior.
This allows you to utilize most of the threading power of Qt in Python via QRunnable and still take advantage of signals and slots. I use this same code in several applications, some that make hundreds of asynchronous REST calls, some that open files or list directories, and the best part is using this method, Qt task balances the system resources for me.
import time
from PyQt4 import QtCore
from PyQt4 import QtGui
from PyQt4.QtCore import Qt
def async(method, args, uid, readycb, errorcb=None):
"""
Asynchronously runs a task
:param func method: the method to run in a thread
:param object uid: a unique identifier for this task (used for verification)
:param slot updatecb: the callback when data is receieved cb(uid, data)
:param slot errorcb: the callback when there is an error cb(uid, errmsg)
The uid option is useful when the calling code makes multiple async calls
and the callbacks need some context about what was sent to the async method.
For example, if you use this method to thread a long running database call
and the user decides they want to cancel it and start a different one, the
first one may complete before you have a chance to cancel the task. In that
case, the "readycb" will be called with the cancelled task's data. The uid
can be used to differentiate those two calls (ie. using the sql query).
:returns: Request instance
"""
request = Request(method, args, uid, readycb, errorcb)
QtCore.QThreadPool.globalInstance().start(request)
return request
class Request(QtCore.QRunnable):
"""
A Qt object that represents an asynchronous task
:param func method: the method to call
:param list args: list of arguments to pass to method
:param object uid: a unique identifier (used for verification)
:param slot readycb: the callback used when data is receieved
:param slot errorcb: the callback used when there is an error
The uid param is sent to your error and update callbacks as the
first argument. It's there to verify the data you're returning
After created it should be used by invoking:
.. code-block:: python
task = Request(...)
QtCore.QThreadPool.globalInstance().start(task)
"""
INSTANCES = []
FINISHED = []
def __init__(self, method, args, uid, readycb, errorcb=None):
super(Request, self).__init__()
self.setAutoDelete(True)
self.cancelled = False
self.method = method
self.args = args
self.uid = uid
self.dataReady = readycb
self.dataError = errorcb
Request.INSTANCES.append(self)
# release all of the finished tasks
Request.FINISHED = []
def run(self):
"""
Method automatically called by Qt when the runnable is ready to run.
This will run in a separate thread.
"""
# this allows us to "cancel" queued tasks if needed, should be done
# on shutdown to prevent the app from hanging
if self.cancelled:
self.cleanup()
return
# runs in a separate thread, for proper async signal/slot behavior
# the object that emits the signals must be created in this thread.
# Its not possible to run grabber.moveToThread(QThread.currentThread())
# so to get this QObject to properly exhibit asynchronous
# signal and slot behavior it needs to live in the thread that
# we're running in, creating the object from within this thread
# is an easy way to do that.
grabber = Requester()
grabber.Loaded.connect(self.dataReady, Qt.QueuedConnection)
if self.dataError is not None:
grabber.Error.connect(self.dataError, Qt.QueuedConnection)
try:
result = self.method(*self.args)
if self.cancelled:
# cleanup happens in 'finally' statement
return
grabber.Loaded.emit(self.uid, result)
except Exception as error:
if self.cancelled:
# cleanup happens in 'finally' statement
return
grabber.Error.emit(self.uid, unicode(error))
finally:
# this will run even if one of the above return statements
# is executed inside of the try/except statement see:
# https://docs.python.org/2.7/tutorial/errors.html#defining-clean-up-actions
self.cleanup(grabber)
def cleanup(self, grabber=None):
# remove references to any object or method for proper ref counting
self.method = None
self.args = None
self.uid = None
self.dataReady = None
self.dataError = None
if grabber is not None:
grabber.deleteLater()
# make sure this python obj gets cleaned up
self.remove()
def remove(self):
try:
Request.INSTANCES.remove(self)
# when the next request is created, it will clean this one up
# this will help us avoid this object being cleaned up
# when it's still being used
Request.FINISHED.append(self)
except ValueError:
# there might be a race condition on shutdown, when shutdown()
# is called while the thread is still running and the instance
# has already been removed from the list
return
@staticmethod
def shutdown():
for inst in Request.INSTANCES:
inst.cancelled = True
Request.INSTANCES = []
Request.FINISHED = []
class Requester(QtCore.QObject):
"""
A simple object designed to be used in a separate thread to allow
for asynchronous data fetching
"""
#
# Signals
#
Error = QtCore.pyqtSignal(object, unicode)
"""
Emitted if the fetch fails for any reason
:param unicode uid: an id to identify this request
:param unicode error: the error message
"""
Loaded = QtCore.pyqtSignal(object, object)
"""
Emitted whenever data comes back successfully
:param unicode uid: an id to identify this request
:param list data: the json list returned from the GET
"""
NetworkConnectionError = QtCore.pyqtSignal(unicode)
"""
Emitted when the task fails due to a network connection error
:param unicode message: network connection error message
"""
def __init__(self, parent=None):
super(Requester, self).__init__(parent)
class ExampleObject(QtCore.QObject):
def __init__(self, parent=None):
super(ExampleObject, self).__init__(parent)
self.uid = 0
self.request = None
def ready_callback(self, uid, result):
if uid != self.uid:
return
print "Data ready from %s: %s" % (uid, result)
def error_callback(self, uid, error):
if uid != self.uid:
return
print "Data error from %s: %s" % (uid, error)
def fetch(self):
if self.request is not None:
# cancel any pending requests
self.request.cancelled = True
self.request = None
self.uid += 1
self.request = async(slow_method, ["arg1", "arg2"], self.uid,
self.ready_callback,
self.error_callback)
def slow_method(arg1, arg2):
print "Starting slow method"
time.sleep(1)
return arg1 + arg2
if __name__ == "__main__":
import sys
app = QtGui.QApplication(sys.argv)
obj = ExampleObject()
dialog = QtGui.QDialog()
layout = QtGui.QVBoxLayout(dialog)
button = QtGui.QPushButton("Generate", dialog)
progress = QtGui.QProgressBar(dialog)
progress.setRange(0, 0)
layout.addWidget(button)
layout.addWidget(progress)
button.clicked.connect(obj.fetch)
dialog.show()
app.exec_()
app.deleteLater() # avoids some QThread messages in the shell on exit
# cancel all running tasks avoid QThread/QTimer error messages
# on exit
Request.shutdown()
When exiting the application you'll want to make sure you cancel all of the tasks or the application will hang until every scheduled task has completed
before comparing the two or more strings first execute the following commands
alter session set NLS_COMP=LINGUISTIC;
alter session set NLS_SORT=BINARY_CI;
after those two statements executed then you may compare the strings and there will be case insensitive.for example you had two strings s1='Apple' and s2='apple', if yow want to compare the two strings before executing the above statements then those two strings will be treated as two different strings but when you compare the strings after the execution of the two alter statements then those two strings s1 and s2 will be treated as the same string
reasons for using those two statements
We need to set NLS_COMP=LINGUISTIC and NLS_SORT=BINARY_CI in order to use 10gR2 case insensitivity. Since these are session modifiable, it is not as simple as setting them in the initialization parameters. We can set them in the initialization parameters but they then only affect the server and not the client side.
I finally found out how to do this! Basically you need to run adb shell
first and then while you're in the shell run su
, which will switch the shell to run as root!
$: adb shell
$: su
The one problem I still have is that sqlite3 is not installed so the command is not recognized.
Old Version before V6: here's the documentation
const fs = require('fs');
fs.exists('/etc/passwd', (exists) => {
console.log(exists ? 'it\'s there' : 'no passwd!');
});
// or Sync
if (fs.existsSync('/etc/passwd')) {
console.log('it\'s there');
}
UPDATE
New versions from V6: documentation for fs.stat
fs.stat('/etc/passwd', function(err, stat) {
if(err == null) {
//Exist
} else if(err.code == 'ENOENT') {
// NO exist
}
});
//Get Connection from web.config file
public static OdbcConnection getConnection()
{
OdbcConnection con = new OdbcConnection();
con.ConnectionString = System.Configuration.ConfigurationManager.ConnectionStrings["con"].ConnectionString;
return con;
}
df = pd.DataFrame({'movie': ['thg', 'thg', 'mol', 'mol', 'lob', 'lob'],'rating': [3., 4., 5., np.nan, np.nan, np.nan],'name': ['John','James', np.nan, np.nan, np.nan,np.nan]})
for col in df.columns:
df = df[~pd.isnull(df[col])]
Below solution worked for me. I hope, this will help you also.
$(document).ready(function() {
$("#datepicker").datepicker({ startDate:'+0d' });
});
Use this and always use UTC functions afterwards e.g. mydate.getUTCHours();
function getDateUTC(str) {
function getUTCDate(myDateStr){
if(myDateStr.length <= 10){
//const date = new Date(myDateStr); //is already assuming UTC, smart - but for browser compatibility we will add time string none the less
const date = new Date(myDateStr.trim() + 'T00:00:00Z');
return date;
}else{
throw "only date strings, not date time";
}
}
function getUTCDatetime(myDateStr){
if(myDateStr.length <= 10){
throw "only date TIME strings, not date only";
}else{
return new Date(myDateStr.trim() +'Z'); //this assumes no time zone is part of the date string. Z indicates UTC time zone
}
}
let rv = '';
if(str && str.length){
if(str.length <= 10){
rv = getUTCDate(str);
}else if(str.length > 10){
rv = getUTCDatetime(str);
}
}else{
rv = '';
}
return rv;
}
console.info(getDateUTC('2020-02-02').toUTCString());
var mydateee2 = getDateUTC('2020-02-02 02:02:02');
console.info(mydateee2.toUTCString());
// you are free to use all UTC functions on date e.g.
console.info(mydateee2.getUTCHours())
console.info('all is good now if you use UTC functions')
_x000D_
Spark is the simplest, here is a quick start guide: http://sparkjava.com/
git add myfile.h
git commit -m "your commit message"
git push -u origin master
if you don't remember all the files you need to update, use
git status
Solved the problem - PHPMailer - SMTP ERROR: Password command failed when send mail from my server
require_once('class.phpmailer.php');
include("class.smtp.php");
$nameField = $_POST['name'];
$emailField = $_POST['email'];
$messageField = $_POST['message'];
$phoneField = $_POST['contactno'];
$cityField = $_POST['city'];
$mail = new PHPMailer(true); // the true param means it will throw exceptions on errors, which we need to catch
$mail->IsSMTP(); // telling the class to use SMTP
$body .= $nameField;
try {
//$mail->Host = "mail.gmail.com"; // SMTP server
$mail->SMTPDebug = 2; // enables SMTP debug information (for testing)
$mail->SMTPAuth = true; // enable SMTP authentication
$mail->SMTPSecure = "ssl"; // sets the prefix to the servier
$mail->Host = "smtp.gmail.com"; // sets GMAIL as the SMTP server
$mail->Port = 465; // set the SMTP port for the GMAIL server
$mail->SMTPKeepAlive = true;
$mail->Mailer = "smtp";
$mail->Username = "[email protected]"; // GMAIL username
$mail->Password = "********"; // GMAIL password
$mail->AddAddress('[email protected]', 'abc');
$mail->SetFrom('[email protected]', 'def');
$mail->Subject = 'PHPMailer Test Subject via mail(), advanced';
$mail->AltBody = 'To view the message, please use an HTML compatible email viewer!'; // optional - MsgHTML will create an alternate automatically
$mail->MsgHTML($body);
$mail->Send();
echo "Message Sent OK</p>\n";
header("location: ../test.html");
} catch (phpmailerException $e) {
echo $e->errorMessage(); //Pretty error messages from PHPMailer
} catch (Exception $e) {
echo $e->getMessage(); //Boring error messages from anything else!
}
Important:
Go to google Setting and do 'less secure' applications enables. It will work. It Worked for Me.
you can use pure javascript atob()
function to decode token into a string:
atob(token.split('.')[1]);
or parse directly it into a json object:
JSON.parse(atob(token.split('.')[1]));
read about atob()
and btoa()
built-in javascript functions Base64 encoding and decoding - Web APIs | MDN.
If somebody needed:
body -> form-data
Add field name as array
No, you should run mysql -u root -p
in bash, not at the MySQL command-line.
If you are in mysql, you can exit by typing exit.
ngRoute is a module developed by the Angular.js team which was earlier part of the Angular core.
ui-router is a framework which was made outside the Angular.js project to improve and enhance routing capabalities.
If you already know what types to expect (for example, when a method returns a union type), then you can use type guards.
For example, for primitive types you can use a typeof guard:
if (typeof thing === "number") {
// Do stuff
}
For complex types you can use an instanceof guard:
if (thing instanceof Array) {
// Do stuff
}
The best I can find is to set input[type="password"] {font:small-caption;font-size:16px}
Demo:
input {_x000D_
font: small-caption;_x000D_
font-size: 16px;_x000D_
}
_x000D_
<input type="password">
_x000D_
Why don't you just save/serve the CSS file as UTF-8?
nav a:hover:after {
content: "?";
}
If that's not good enough, and you want to keep it all-ASCII:
nav a:hover:after {
content: "\2193";
}
The general format for a Unicode character inside a string is \000000
to \FFFFFF
– a backslash followed by six hexadecimal digits. You can leave out leading 0
digits when the Unicode character is the last character in the string or when you add a space after the Unicode character. See the spec below for full details.
Relevant part of the CSS2 spec:
Third, backslash escapes allow authors to refer to characters they cannot easily put in a document. In this case, the backslash is followed by at most six hexadecimal digits (0..9A..F), which stand for the ISO 10646 ([ISO10646]) character with that number, which must not be zero. (It is undefined in CSS 2.1 what happens if a style sheet does contain a character with Unicode codepoint zero.) If a character in the range [0-9a-fA-F] follows the hexadecimal number, the end of the number needs to be made clear. There are two ways to do that:
- with a space (or other white space character): "\26 B" ("&B"). In this case, user agents should treat a "CR/LF" pair (U+000D/U+000A) as a single white space character.
- by providing exactly 6 hexadecimal digits: "\000026B" ("&B")
In fact, these two methods may be combined. Only one white space character is ignored after a hexadecimal escape. Note that this means that a "real" space after the escape sequence must be doubled.
If the number is outside the range allowed by Unicode (e.g., "\110000" is above the maximum 10FFFF allowed in current Unicode), the UA may replace the escape with the "replacement character" (U+FFFD). If the character is to be displayed, the UA should show a visible symbol, such as a "missing character" glyph (cf. 15.2, point 5).
- Note: Backslash escapes are always considered to be part of an identifier or a string (i.e., "\7B" is not punctuation, even though "{" is, and "\32" is allowed at the start of a class name, even though "2" is not).
The identifier "te\st" is exactly the same identifier as "test".
Comprehensive list: Unicode Character 'DOWNWARDS ARROW' (U+2193).
You could use Canvas
in HTML, simply add a canva
<canvas id="locations" width="400" height="300" style="border:1px solid #d3d3d3;">
Your browser can't read canvas</canvas>
And in Javascript (only an example, that will draw a rectangle on the picture)
var c = document.getElementById("locations");
var ctx = c.getContext("2d");
var img = new Image();
img.src = '{main_photo}';
img.onload = function() { // after the pic is loaded
ctx.drawImage(this,0,0); // add the picture
ctx.beginPath(); // start the rectangle
ctx.moveTo(50,50);
ctx.lineTo(200,50);
ctx.lineTo(200,200);
ctx.lineTo(50,200);
ctx.lineTo(50,50);
ctx.strokeStyle = "sienna"; // set color
ctx.stroke(); // apply color
ctx.lineWidth = 5;
// ctx.closePath();
};
You do not include a <scope>
tag in your dependency. If you add it, your dependency becomes something like:
<dependency>
<groupId>org.openrdf.sesame</groupId>
<artifactId>sesame-runtime</artifactId>
<version>2.7.2</version>
<scope> ... </scope>
</dependency>
The "scope" tag tells maven at which stage of the build your dependency is needed. Examples for the values to put inside are "test", "provided" or "runtime" (omit the quotes in your pom). I do not know your dependency so I cannot tell you what value to choose. Please consult the Maven documentation and the documentation of your dependency.
Options A, B and D seem to be in the same category since they only influence the initial start time, they do warmup of the website like compilation and loading of libraries in memory.
Using C, setting the idle timeout, should be enough so that subsequent requests to the server are served fast (restarting the app pool takes quite some time - in the order of seconds).
As far as I know, the timeout exists to save memory that other websites running in parallel on that machine might need. The price being that one time slow load time.
Besides the fact that the app pool gets shutdown in case of user inactivity, the app pool will also recycle by default every 1740 minutes (29 hours).
From technet:
Internet Information Services (IIS) application pools can be periodically recycled to avoid unstable states that can lead to application crashes, hangs, or memory leaks.
As long as app pool recycling is left on, it should be enough. But if you really want top notch performance for most components, you should also use something like the Application Initialization Module you mentioned.
the wmic bios get serialnumber
command call the Win32_BIOS
wmi class and get the value of the SerialNumber
property, which retrieves the serial number of the BIOS Chip of your system.
You can use FLOOR
:
select x, ABS(x) - FLOOR(ABS(x))
from (
select 2.938 as x
) a
Output:
x
-------- ----------
2.938 0.938
Or you can use SUBSTRING
:
select x, SUBSTRING(cast(x as varchar(max)), charindex(cast(x as varchar(max)), '.') + 3, len(cast(x as varchar(max))))
from (
select 2.938 as x
) a
Ember-Data's ActiveRecord adapter expects 422 UNPROCESSABLE ENTITY
to be returned from server. So, if you're client is written in Ember.js you should use 422. Only then DS.Errors will be populated with returned errors. You can of course change 422 to any other code in your adapter.
After execute the thread, add these two line of code, and that will solve the issue.
Looper.loop();
Looper.myLooper().quit();
If you need any type of quoting (single, double, and triple for both) you can "combine"(0) the strings:
>>> raw_string_with_quotes = r'double"' r"single'" r'''double triple""" ''' r"""single triple''' """
>>> print raw_string_with_quotes
double"single'double triple""" single triple'''
You may also "combine"(0) raw strings with non-raw strings:
>>> r'raw_string\n' 'non-raw string\n'
'raw_string\\nnon-raw string\n'
(0): In fact, the Python parser joins the strings, and it does not create multiple strings. If you add the "+" operator, then multiple strings are created and combined.
You can try using open-cv to save the file since it helps with image type conversions internally. The sample code:
import cv2
import numpy as np
def save(encoded_data, filename):
nparr = np.fromstring(encoded_data.decode('base64'), np.uint8)
img = cv2.imdecode(nparr, cv2.IMREAD_ANYCOLOR)
return cv2.imwrite(filename, img)
Then somewhere in your code you can use it like this:
save(base_64_string, 'testfile.png');
save(base_64_string, 'testfile.jpg');
save(base_64_string, 'testfile.bmp');
Check the image above I hope it will help someone.
A developer recently added subtitle support to VideoView.
When the MediaPlayer
starts playing a music (or other source), it checks if there is a SubtitleController and shows this message if it's not set.
It doesn't seem to care about if the source you want to play is a music or video. Not sure why he did that.
Short answer: Don't care about this "Exception".
Edit :
Still present in Lollipop,
If MediaPlayer
is only used to play audio files and you really want to remove these errors in the logcat, the code bellow set an empty SubtitleController
to the MediaPlayer
.
It should not be used in production environment and may have some side effects.
static MediaPlayer getMediaPlayer(Context context){
MediaPlayer mediaplayer = new MediaPlayer();
if (android.os.Build.VERSION.SDK_INT < android.os.Build.VERSION_CODES.KITKAT) {
return mediaplayer;
}
try {
Class<?> cMediaTimeProvider = Class.forName( "android.media.MediaTimeProvider" );
Class<?> cSubtitleController = Class.forName( "android.media.SubtitleController" );
Class<?> iSubtitleControllerAnchor = Class.forName( "android.media.SubtitleController$Anchor" );
Class<?> iSubtitleControllerListener = Class.forName( "android.media.SubtitleController$Listener" );
Constructor constructor = cSubtitleController.getConstructor(new Class[]{Context.class, cMediaTimeProvider, iSubtitleControllerListener});
Object subtitleInstance = constructor.newInstance(context, null, null);
Field f = cSubtitleController.getDeclaredField("mHandler");
f.setAccessible(true);
try {
f.set(subtitleInstance, new Handler());
}
catch (IllegalAccessException e) {return mediaplayer;}
finally {
f.setAccessible(false);
}
Method setsubtitleanchor = mediaplayer.getClass().getMethod("setSubtitleAnchor", cSubtitleController, iSubtitleControllerAnchor);
setsubtitleanchor.invoke(mediaplayer, subtitleInstance, null);
//Log.e("", "subtitle is setted :p");
} catch (Exception e) {}
return mediaplayer;
}
This code is trying to do the following from the hidden API
SubtitleController sc = new SubtitleController(context, null, null);
sc.mHandler = new Handler();
mediaplayer.setSubtitleAnchor(sc, null)
I had the same problem with SQLite and Android. Here is my Solution:
List<String> tables = new ArrayList<String>();
Cursor cursor = db.rawQuery("SELECT * FROM sqlite_master WHERE type='table';", null);
cursor.moveToFirst();
while (!cursor.isAfterLast()) {
String tableName = cursor.getString(1);
if (!tableName.equals("android_metadata") &&
!tableName.equals("sqlite_sequence"))
tables.add(tableName);
cursor.moveToNext();
}
cursor.close();
for(String tableName:tables) {
db.execSQL("DROP TABLE IF EXISTS " + tableName);
}
If you do not want to use Calendar class at all you can use this
String weekday_name = new SimpleDateFormat("EEEE", Locale.ENGLISH).format(System.currentTimeMillis());
i.e., result is,
"Sunday"
<audio src="/music/good_enough.mp3" autoplay>
<p>If you are reading this, it is because your browser does not support the audio element. </p>
<embed src="/music/good_enough.mp3" width="180" height="90" hidden="true" />
</audio>
Works for me just fine.
The data is stored on the device, in your application's private data area. It is not in an Eclipse project.
this works, and can be adapted for weeks or anyother frequency i.e. weekly, quarterly etc...
=SUMIFS(B12:B11652,A12:A11652,">="&DATE(YEAR(C12),MONTH(C12),1),A12:A11652,"<"&DATE(YEAR(C12),MONTH(C12)+1,1))
This should work:
User.Identity.Name
Identity
returns an IPrincipal
Here is the link to the Microsoft documentation.
One other possible reason: in my case, I was attempting to save the child before saving the parent, on a brand new entity.
The code was something like this in a User.java model:
this.lastName = lastName;
this.isAdmin = isAdmin;
this.accountStatus = "Active";
this.setNewPassword(password);
this.timeJoin = new Date();
create();
The setNewPassword() method creates a PasswordHistory record and adds it to the history collection in User. Since the create() statement hadn't been executed yet for the parent, it was trying to save to a collection of an entity that hadn't yet been created. All I had to do to fix it was to move the setNewPassword() call after the call to create().
this.lastName = lastName;
this.isAdmin = isAdmin;
this.accountStatus = "Active";
this.timeJoin = new Date();
create();
this.setNewPassword(password);
Google thrives on scraping websites of the world...so if it was "so illegal" then even Google won't survive ..of course other answers mention ways of mitigating IP blocks by Google. One more way to explore avoiding captcha could be scraping at random times (dint try) ..Moreover, I have a feeling, that if we provide novelty or some significant processing of data then it sounds fine at least to me...if we are simply copying a website.. or hampering its business/brand in some way...then it is bad and should be avoided..on top of it all...if you are a startup then no one will fight you as there is no benefit.. but if your entire premise is on scraping even when you are funded then you should think of more sophisticated ways...alternative APIs..eventually..Also Google keeps releasing (or depricating) fields for its API so what you want to scrap now may be in roadmap of new Google API releases..
you can also use the Readonly attribute: the input is not gonna be grayed but it won't be editable
<input type="text" name="lat" value="22.2222" readonly="readonly" />
$(document.createElement("img")).attr({
src: 'https://graph.facebook.com/'+friend.id+'/picture',
title: friend.name ,
'data-friend-id':friend.id,
'data-friend-name':friend.name
}).appendTo(divContainer);
When using Node.js, you can retrieve environment variables by key from the process.env
object:
for example
var mode = process.env.NODE_ENV;
var apiKey = process.env.apiKey; // '42348901293989849243'
Here is the answer that will explain setting environment variables in node.js
This is the way I do it. ISO format:
import datetime
datetime.datetime.now().replace(microsecond=0).isoformat()
# Returns: '2017-01-23T14:58:07'
You can replace the 'T' if you don't want ISO format:
datetime.datetime.now().replace(microsecond=0).isoformat(' ')
# Returns: '2017-01-23 15:05:27'
Here is my code
# -*- coding: utf-8 -*-
import socket
class SubnetTest(object):
def __init__(self, network):
self.network, self.netmask = network.split('/')
self._network_int = int(socket.inet_aton(self.network).encode('hex'), 16)
self._mask = ((1L << int(self.netmask)) - 1) << (32 - int(self.netmask))
self._net_prefix = self._network_int & self._mask
def match(self, ip):
'''
????? IP ???? Network ?? IP
'''
ip_int = int(socket.inet_aton(ip).encode('hex'), 16)
return (ip_int & self._mask) == self._net_prefix
st = SubnetTest('100.98.21.0/24')
print st.match('100.98.23.32')
I used tensorflow 1.8 to train my model and there is no problem for now. Tensorflow 2.0 alpha is not suitable with object detection API
The /P
switch allows you to set the value of a variable to a line of input entered by the user. Displays the specified promptString before reading the line of input. The promptString can be empty.
Two ways I've used it... first:
SET /P variable=
When batch file reaches this point (when left blank) it will halt and wait for user input. Input then becomes variable.
And second:
SET /P variable=<%temp%\filename.txt
Will set variable to contents (the first line) of the txt file. This method won't work unless the /P
is included. Both tested on Windows 8.1 Pro, but it's the same on 7 and 10.
Looking at the updated question try something like
$('input, textarea, select').each(function(){
$(this).data("val", $(this).val());
});
$('#button').click(function() {
$('input, textarea, select').each(function(){
if($(this).data("val")!==$(this).val()) alert("Things Changed");
});
});
For the original question use something like
$('input').change(function() {
alert("Things have changed!");
});
Python
As @numeral correctly said, column._jc.toString()
works fine in case of unaliased columns.
In case of aliased columns (i.e. column.alias("whatever")
) the alias can be extracted, even without the usage of regular expressions: str(column).split(" AS ")[1].split("`")[1]
.
I don't know Scala syntax, but I'm sure It can be done the same.
To add to the valuable content, I would like to create this reminder on why sometimes RegEx within VBA is not ideal. Not all expressions are supported, but instead may throw an Error 5017
and may leave the author guessing (which I am a victim of myself).
Whilst we can find some sources on what is supported, it would be helpfull to know which metacharacters etc. are not supported. A more in-depth explaination can be found here. Mentioned in this source:
"Although "VBScript’s regular expression ... version 5.5 implements quite a few essential regex features that were missing in previous versions of VBScript. ... JavaScript and VBScript implement Perl-style regular expressions. However, they lack quite a number of advanced features available in Perl and other modern regular expression flavors:"
So, not supported are:
\A
, alternatively use the ^
caret to match postion before 1st char in string\Z
, alternatively use the $
dollar sign to match postion after last char in string(?<=a)b
(whilst postive LookAhead is supported)(?<!a)b
(whilst negative LookAhead is supported)\{uFFFF}
/i
(case sensitivity) or /g
(global) etc. Set these through the RegExp
object properties > RegExp.Global = True
and RegExp.IgnoreCase = True
if available.'
comments in script I already hit a wall more than once using regular expressions within VBA. Usually with LookBehind
but sometimes I even forget the modifiers. I have not experienced all these above mentioned backdrops myself but thought I would try to be extensive referring to some more in-depth information. Feel free to comment/correct/add. Big shout out to regular-expressions.info for a wealth of information.
P.S. You have mentioned regular VBA methods and functions, and I can confirm they (at least to myself) have been helpful in their own ways where RegEx would fail.
There are two ways to accomplish this,
The following are samples of using these approaches,
List<XElement> result = doc.Root.Element("emails").Elements("emailAddress").ToList();
If you use XPath, you need to do some manipulation with the IEnumerable:
IEnumerable<XElement> mails = ((IEnumerable)doc.XPathEvaluate("/emails/emailAddress")).Cast<XElement>();
Note that
var res = doc.XPathEvaluate("/emails/emailAddress");
results either a null pointer, or no results.
- Line Feed and Carriage Return
These HTML entities will insert a new line or carriage return inside a text area.
The JSON sample you provided is not valid. Check it online with this JSON Validator http://jsonlint.com/. You need to remove the extra comma on line 59.
One you have valid json you can use this code to convert it to an array.
json_decode($json, true);
Array
(
[bpath] => http://www.sampledomain.com/
[clist] => Array
(
[0] => Array
(
[cid] => 11
[display_type] => grid
[ctitle] => abc
[acount] => 71
[alist] => Array
(
[0] => Array
(
[aid] => 6865
[adate] => 2 Hours ago
[atitle] => test
[adesc] => test desc
[aimg] =>
[aurl] => ?nid=6865
[weburl] => news.php?nid=6865
[cmtcount] => 0
)
[1] => Array
(
[aid] => 6857
[adate] => 20 Hours ago
[atitle] => test1
[adesc] => test desc1
[aimg] =>
[aurl] => ?nid=6857
[weburl] => news.php?nid=6857
[cmtcount] => 0
)
)
)
[1] => Array
(
[cid] => 1
[display_type] => grid
[ctitle] => test1
[acount] => 2354
[alist] => Array
(
[0] => Array
(
[aid] => 6851
[adate] => 1 Days ago
[atitle] => test123
[adesc] => test123 desc
[aimg] =>
[aurl] => ?nid=6851
[weburl] => news.php?nid=6851
[cmtcount] => 7
)
[1] => Array
(
[aid] => 6847
[adate] => 2 Days ago
[atitle] => test12345
[adesc] => test12345 desc
[aimg] =>
[aurl] => ?nid=6847
[weburl] => news.php?nid=6847
[cmtcount] => 7
)
)
)
)
)
Use cmp command. Refer to Binary Files and Forcing Text Comparisons for more information.
cmp -b file1 file2
Here's a working example in which the execution of the service is started in the OnTimedEvent of the Timer which is implemented as delegate in the ServiceBase class and the Timer logic is encapsulated in a method called SetupProcessingTimer():
public partial class MyServiceProject: ServiceBase
{
private Timer _timer;
public MyServiceProject()
{
InitializeComponent();
}
private void SetupProcessingTimer()
{
_timer = new Timer();
_timer.AutoReset = true;
double interval = Settings.Default.Interval;
_timer.Interval = interval * 60000;
_timer.Enabled = true;
_timer.Elapsed += new ElapsedEventHandler(OnTimedEvent);
}
private void OnTimedEvent(object source, ElapsedEventArgs e)
{
// begin your service work
MakeSomething();
}
protected override void OnStart(string[] args)
{
SetupProcessingTimer();
}
...
}
The Interval is defined in app.config in minutes:
<userSettings>
<MyProject.Properties.Settings>
<setting name="Interval" serializeAs="String">
<value>1</value>
</setting>
</MyProject.Properties.Settings>
</userSettings>
SELECT name,
type
FROM dbo.sysobjects
WHERE (type = 'P')
For a very simple version of touch
which would be mostly used to create a 0 byte file in the current directory, an alternative would be creating a touch.bat
file and either adding it to the %Path%
or copying it to the C:\Windows\System32
directory, like so:
touch.bat
@echo off
powershell New-Item %* -ItemType file
Creating a single file
C:\Users\YourName\Desktop>touch a.txt Directory: C:\Users\YourName\Desktop Mode LastWriteTime Length Name ---- ------------- ------ ---- -a---- 2020-10-14 10:28 PM 0 a.txt
Creating multiple files
C:\Users\YourName\Desktop>touch "b.txt,c.txt" Directory: C:\Users\YourName\Desktop Mode LastWriteTime Length Name ---- ------------- ------ ---- -a---- 2020-10-14 10:52 PM 0 b.txt -a---- 2020-10-14 10:52 PM 0 c.txt
Also
New-Item : The file 'C:\Users\YourName\Desktop\a.txt' already exists.
C:\Users\YourName\Desktop>touch d.txt,e.txt,f.txt C:\Users\YourName\Desktop>touch "g.txt, 'name with spaces.txt'"
I had the same issue and I fixed removing the library that were unnecessary
compile fileTree(dir: 'libs', include: ['*.jar'])
I removed that library and I could run the project without any problem.
In python, for loops iterate over iterables, instead of incrementing a counter, so you have a couple choices. Using a skip flag like Artsiom recommended is one way to do it. Another option is to make a generator from your range and manually advance it by discarding an element using next()
.
iGen = (i for i in range(0, 6))
for i in iGen:
print i
if not i % 2:
iGen.next()
But this isn't quite complete because next()
might throw a StopIteration if it reaches the end of the range, so you have to add some logic to detect that and break out of the outer loop if that happens.
In the end, I'd probably go with aw4ully's solution with the while loops.
Apparently MDN has never heard of the word-boundary regex character class \b
, which matches contiguous \w+
that is bounded on either side with \W+
:
getCookie = function(name) {
var r = document.cookie.match("\\b" + name + "=([^;]*)\\b");
return r ? r[1] : null;
};
var obligations = getCookie('obligations');
check this out :)
var traingIds = "[1,2]"; // ${triningIdArray} this value getting from server
alert(traingIds); // alerts [1,2]
var type = typeof(traingIds);
alert(type); // // alerts String
//remove square brackets
traingIds = traingIds.replace('[','');
traingIds = traingIds.replace(']','');
alert(traingIds); // alerts 1,2
var trainindIdArray = traingIds.split(',');
?for(i = 0; i< trainindIdArray.length; i++){
alert(trainindIdArray[i]); //outputs individual numbers in array
}?
If you want to compare files visually you can use:
git difftool
It will start your diff app automatically for each changed file.
PS: If you did not set a diff app, you can do it like in the example below(I use Winmerge):
git config --global merge.tool winmerge
git config --replace --global mergetool.winmerge.cmd "\"C:\Program Files (x86)\WinMerge\WinMergeU.exe\" -e -u -dl \"Base\" -dr \"Mine\" \"$LOCAL\" \"$REMOTE\" \"$MERGED\""
git config --global mergetool.prompt false
Use this line of codes inside the Column.
For wrap_content : mainAxisSize: MainAxisSize.min
For match_parent : mainAxisSize: MainAxisSize.max
could you please try below code
<c:forEach var="hash" items="${map['key']}">
<option><c:out value="${hash}"/></option>
</c:forEach>
CSS auto-fit container between float:left & float:right divs solved my problem, thanks for your comments.
#left
{
width:200px;
float:left;
background-color:antiquewhite;
margin-left:10px;
}
#content
{
overflow:hidden;
margin-left:10px;
background-color:AppWorkspace;
}
Mutable way:
import UserString
s = UserString.MutableString("EXAMPLE")
>>> type(s)
<type 'str'>
# Delete 'M'
del s[3]
# Turn it for immutable:
s = str(s)
Below is the working Example:
$("#estimated-amount-due .content").html("$" + miniCartTotal.toFixed(2).replace(/(\d)(?=(\d{3})+(?!\d))/g, "$1,"));
This line is sufficient, it works for me. Check the complete code below. Let me know if it works fine for you too.
$(".action.showcart").on('click', function() {
var miniCartTotal = $("#estimated-subtotal .price").html();
var miniCartTotalString = miniCartTotal.replace(/\$/g, '');
var miniCartTotalString = miniCartTotalString.replace(/,/g, '');
var configValue = 5;
miniCartTotal = parseFloat(miniCartTotalString) + configValue;
console.log("updated value " + miniCartTotal);
$("#estimated-amount-due .content").html("$" + miniCartTotal.toFixed(2).replace(/(\d)(?=(\d{3})+(?!\d))/g, "$1,"));
});
In chrome you can find easily not only your JS version but also a flash version. All you need is to type chrome://version/
in a command line and you will get something like this:
Maybe something like this...
try
{
// ...
}
catch (WebException ex)
{
if (ex.Status == WebExceptionStatus.ProtocolError)
{
var response = ex.Response as HttpWebResponse;
if (response != null)
{
Console.WriteLine("HTTP Status Code: " + (int)response.StatusCode);
}
else
{
// no http status code available
}
}
else
{
// no http status code available
}
}
Jonathan from the ExcelCentral forums suggests:
=WEEKNUM(A1,2)-WEEKNUM(DATE(YEAR(A1),MONTH(A1),1),2)+1
This formula extracts the week of the year [...] and then subtracts it from the week of the first day in the month to get the week of the month. You can change the day that weeks begin by changing the second argument of both WEEKNUM functions (set to 2 [for Monday] in the above example). For weeks beginning on Sunday, use:
=WEEKNUM(A1,1)-WEEKNUM(DATE(YEAR(A1),MONTH(A1),1),1)+1
For weeks beginning on Tuesday, use:
=WEEKNUM(A1,12)-WEEKNUM(DATE(YEAR(A1),MONTH(A1),1),12)+1
etc.
I like it better because it's using the built in week calculation functionality of Excel (WEEKNUM).
the $("body").append(r)
statement should be within the test
function, also there was misplaced "
in the test
method
function test() {
var r=$('<input/>').attr({
type: "button",
id: "field",
value: 'new'
});
$("body").append(r);
}
Demo: Fiddle
Update
In that case try a more jQuery-ish solution
<!DOCTYPE html>
<html>
<head>
<script src="http://ajax.googleapis.com/ajax/libs/jquery/1.10.2/jquery.min.js"></script>
<script type="text/javascript">
jQuery(function($){
$('#mybutton').one('click', function(){
var r=$('<input/>').attr({
type: "button",
id: "field",
value: 'new'
});
$("body").append(r);
})
})
</script>
</head>
<body>
<button id="mybutton">Insert after</button>
</body>
</html>
Demo: Plunker
/*
Write a function called randUpTo
that accepts a number and returns a
random whole number between 0 and that number?
*/
var randUpTo = function(num) {
return Math.floor(Math.random() * (num - 1) + 0);
};
/*
Write a function called randBetween
that accepts two numbers
representing a range and returns a random whole number between those two
numbers.
*/
var randBetween = function (min, max) {
return Math.floor(Math.random() * (max - min - 1)) + min;
};
/*
Write a function called randFromTill
that accepts two numbers
representing a range and returns a random number between min (inclusive)
and max (exclusive).
*/
var randFromTill = function (min, max) {
return Math.random() * (max - min) + min;
};
/*
Write a function called randFromTo
that accepts two numbers
representing a range and returns a random integer between min (inclusive)
and max (inclusive)
*/
var randFromTo = function (min, max) {
return Math.floor(Math.random() * (max - min + 1)) + min;
};
It works for me when I set the delegate
self.navigationController.interactivePopGestureRecognizer.delegate = self;
and then implement
Swift
extension MyViewController:UIGestureRecognizerDelegate {
func gestureRecognizer(_ gestureRecognizer: UIGestureRecognizer, shouldBeRequiredToFailBy otherGestureRecognizer: UIGestureRecognizer) -> Bool {
return true
}
}
Objective-C
- (BOOL)gestureRecognizer:(UIGestureRecognizer *)gestureRecognizer shouldBeRequiredToFailByGestureRecognizer:(UIGestureRecognizer *)otherGestureRecognizer
{
return YES;
}
angular.version
console.log(angular.version);
_x000D_
<script src="//unpkg.com/angular/angular.js"></script>
_x000D_
For more information, see
There is a simple work around. The alert only comes up when you have a large amount of data in your clipboard. Just copy a random cell before you close the workbook and it won't show up anymore!
Just for anyone who still has an issue, I also had an issue where I typed ngif
rather than ngIf
(notice the capital 'I').
Trunk : After the completion of every sprint in agile we come out with a partially shippable product. These releases are kept in trunk.
Branches : All parallel developments codes for each ongoing sprint are kept in branches.
Tags : Every time we release a partially shippable product kind of beta version, we make a tag for it. This gives us the code that was available at that point of time, allowing us to go back at that state if required at some point during development.
To simply combine them you can place them all together like this:
=SUBSTITUTE(SUBSTITUTE(SUBSTITUTE(SUBSTITUTE(SUBSTITUTE(SUBSTITUTE(SUBSTITUTE(A2,"_AB","_"),"_CD","_"),"_EF","_"),"_40K",""),"_60K",""),"_S_","_"),"_","-")
(note that this may pass the older Excel limit of 7 nested statements. I'm testing in Excel 2010
Another way to do it is by utilizing Left
and Right
functions.
This assumes that the changing data on the end is always present and is 8 characters long
=SUBSTITUTE(LEFT(A2,LEN(A2)-8),"_","-")
This will achieve the same resulting string
If the string doesn't always end with 8 characters that you want to strip off you can search for the "_S" and get the current location. Try this:
=SUBSTITUTE(LEFT(A2,FIND("_S",A2,1)),"_","-")
npm config set registry https://registry.npmjs.org/
this is the only solution for me.
To add a "local" package to your project, add a folder (for example "package_name"). And put your implementation files in that folder.
src/github.com/GithubUser/myproject/
+-- main.go
+---package_name
+-- whatever_name1.go
+-- whatever_name2.go
In your package main
do this:
import "github.com/GithubUser/myproject/package_name"
Where package_name
is the folder name and it must match the package name used in files whatever_name1.go and whatever_name2.go. In other words all files with a sub-directory should be of the same package.
You can further nest more subdirectories as long as you specify the whole path to the parent folder in the import.
you can use this code for showing or print :
<byte_object>.decode("utf-8")
and you can use this for encode or saving :
<str_object>.encode('utf-8')
If you want to be evil, you can use the in-place "new" operator:
class Foo() {
Foo() { /* default constructor deliciousness */ }
Foo(Bar myParam) {
new (this) Foo();
/* bar your param all night long */
}
};
Seems to work for me.
edit
As @ElvedinHamzagic points out, if Foo contained an object which allocated memory, that object might not be freed. This complicates things further.
A more general example:
class Foo() {
private:
std::vector<int> Stuff;
public:
Foo()
: Stuff(42)
{
/* default constructor deliciousness */
}
Foo(Bar myParam)
{
this->~Foo();
new (this) Foo();
/* bar your param all night long */
}
};
Looks a bit less elegant, for sure. @JohnIdol's solution is much better.
$client = new \GuzzleHttp\Client();
$request = $client->post('http://demo.website.com/api', [
'body' => json_encode($dataArray)
]);
$response = $request->getBody();
Add
openssl.cafile
in php.ini
file
In the service.ts file -
a. import 'of' from observable/of
b. create a json list
c. return json object using Observable.of()
Ex. -
import { Injectable } from '@angular/core';
import { Observable } from 'rxjs/Observable';
import { of } from 'rxjs/observable/of';
@Injectable()
export class ClientListService {
private clientList;
constructor() {
this.clientList = [
{name: 'abc', address: 'Railpar'},
{name: 'def', address: 'Railpar 2'},
{name: 'ghi', address: 'Panagarh'},
{name: 'jkl', address: 'Panagarh 2'},
];
}
getClientList () {
return Observable.of(this.clientList);
}
};
In the component where we are calling the get function of the service -
this.clientListService.getClientList().subscribe(res => this.clientList = res);
.headerDivider {
border-left:1px solid #38546d;
border-right:1px solid #16222c;
height:80px;
position:absolute;
right:249px;
top:10px;
}
<div class="headerDivider"></div>
If you're using Entity Framework, exception.ToString()
will not gives you the details of DbEntityValidationException
exceptions. You might want to use the same method to handle all your exception, like:
catch (Exception ex)
{
Log.Error(GetExceptionDetails(ex));
}
Where GetExceptionDetails
contains something like this:
public static string GetExceptionDetails(Exception ex)
{
var stringBuilder = new StringBuilder();
while (ex != null)
{
switch (ex)
{
case DbEntityValidationException dbEx:
var errorMessages = dbEx.EntityValidationErrors.SelectMany(x => x.ValidationErrors).Select(x => x.ErrorMessage);
var fullErrorMessage = string.Join("; ", errorMessages);
var message = string.Concat(ex.Message, " The validation errors are: ", fullErrorMessage);
stringBuilder.Insert(0, dbEx.StackTrace);
stringBuilder.Insert(0, message);
break;
default:
stringBuilder.Insert(0, ex.StackTrace);
stringBuilder.Insert(0, ex.Message);
break;
}
ex = ex.InnerException;
}
return stringBuilder.ToString();
}
<a href="#" onclick="javascript:ShowOld(2367,146986,2)">
what might get you where you want in plain SQL92:
select * from tbl where lower(answer) = upper(answer)
or, if you also want to be robust for leading/trailing spaces:
select * from tbl where lower(answer) = trim(upper(answer))
This helped in my case :
This is just a hack. You need to do it regulary ... :-(
Best regards,
Alexander
If the dependency was defined in the top-level pom's dependencyManagement element, the child project did not have to explicitly list the version of the dependency. if the child project did define a version, it would override the version listed in the top-level POM’s dependencyManagement section. That is, the dependencyManagement version is only used when the child does not declare a version directly.
In Bootstrap 4: Try this way with Flexbox. See documentation in getbootstrap
<div class="row">
<div class="col-md">
<div class="d-flex justify-content-end">
<button type="button" class="btn btn-default">Example 1</button>
<button type="button" class="btn btn-default">Example 2</button>
</div>
</div>
</div>
a git repository has several branches. Each branch follows a development line, and it has its origin in another branch at some point in time (except the first branch, typically called master
, that it starts as the default branch until someone changes, what almost never happens)
If you are new with git, remember those 2 fundamentals. Now, you just need to clone the repository, and it will be in some branch. if the branch is the one you are looking for, awesome. If not, you just need to change to the other branch - this is called checkout. Just type git checkout <branch-name>
In some cases you want to get updates for a specific branch. Just do git pull origin <branch-name>
and it will 'download' the new commits (changes). If you didn't do any changes, it should go easy. If you also introduced changes on that branches, conflicts may appear. let me know if you need more info on this case also
Have a look at the mainpage
command.
Also, have a look this answer to another thread: How to include custom files in Doxygen. It states that there are three extensions which doxygen classes as additional documentation files: .dox
, .txt
and .doc
. Files with these extensions do not appear in the file index but can be used to include additional information into your final documentation - very useful for documentation that is necessary but that is not really appropriate to include with your source code (for example, an FAQ)
So I would recommend having a mainpage.dox
(or similarly named) file in your project directory to introduce you SDK. Note that inside this file you need to put one or more C/C++ style comment blocks.
The gcf method is depricated in V 0.14, The below code works for me:
plot = dtf.plot()
fig = plot.get_figure()
fig.savefig("output.png")
enter code here IN DATAFRAME:
val p=spark.read.format("csv").options(Map("header"->"true","delimiter"->"^")).load("filename.csv")
All of the answers are good but not complete. Use this.
<EditText
android:layout_width="match_parent"
android:layout_height="0dp"
android:layout_marginTop="12dp"
android:layout_marginBottom="12dp"
android:background="@drawable/text_area_background"
android:gravity="start|top"
android:hint="@string/write_your_comments"
android:imeOptions="actionDone"
android:importantForAutofill="no"
android:inputType="textMultiLine"
android:padding="12dp" />
Using D3:
If you want to add the element in the reverse order to the data use:
.insert('g', ":first-child")
Instead of .append
Like that:
class Zoo {
AnimalClass: typeof Animal;
constructor(AnimalClass: typeof Animal ) {
this.AnimalClass = AnimalClass
let Hector = new AnimalClass();
}
}
Or just:
class Zoo {
constructor(public AnimalClass: typeof Animal ) {
let Hector = new AnimalClass();
}
}
typeof Class
is the type of the class constructor. It's preferable to the custom constructor type declaration because it processes static class members properly.
Here's the relevant part of TypeScript docs. Search for the typeof
. As a part of a TypeScript type annotation, it means "give me the type of the symbol called Animal" which is the type of the class constructor function in our case.
You can use Decode
as well:
SELECT DISTINCT a.item, decode(b.salesman,'VIKKIE','ICKY',Else),NVL(a.manufacturer,'Not Set')Manufacturer
FROM inv_items a, arv_sales b
WHERE a.co = b.co
AND A.ITEM_KEY = b.item_key
AND a.co = '100'
AND a.item LIKE 'BX%'
AND b.salesman in ('01','15')
AND trans_date BETWEEN to_date('010113','mmddrr')
and to_date('011713','mmddrr')
GROUP BY a.item, b.salesman, a.manufacturer
ORDER BY a.item
You may can use -Xlinker option.
g++ -o foobar -Xlinker -start-group -Xlinker libA.a -Xlinker libB.a -Xlinker libC.a -Xlinker -end-group
is ALMOST equal to
g++ -o foobar -Xlinker -start-group -Xlinker libC.a -Xlinker libB.a -Xlinker libA.a -Xlinker -end-group
Careful !
Single precision number uses 32 bits, with the MSB being sign bit, whereas double precision number uses 64bits, MSB being sign bit
Single precision
SEEEEEEEEFFFFFFFFFFFFFFFFFFFFFFF.(SIGN+EXPONENT+SIGNIFICAND)
Double precision:
SEEEEEEEEEEEFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF.(SIGN+EXPONENT+SIGNIFICAND)
This is a little helper arrow function:
const letters = ['A', 'B', 'C', 'D'];
function checkInList(arr, val) {
return arr.some(arrVal => val === arrVal);
}
checkInList(letters, 'E'); // false
checkInList(letters, 'A'); // true
try this
$(".checkAll").click(function() {
if("checkall" === $(this).val()) {
$(".cb-element").attr('checked', true);
$(this).val("uncheckall"); //change button text
}
else if("uncheckall" === $(this).val()) {
$(".cb-element").attr('checked', false);
$(this).val("checkall"); //change button text
}
});
It seems that your problem is simply a concurrency issue. The post function takes a callback argument to tell you when the post has been finished. You cannot make the alert in global scope like this and expect that the post has already been finished. You have to move it to the callback function.
(Adding to previous answers (hope that helps someone):)
Age is simpler but in case of string and with ignoring case:
@fathers.any? { |father| father[:name].casecmp("john") == 0 }
should work for any case in start or anywhere in the string i.e. for "John"
, "john"
or "JoHn"
and so on.
@fathers.find { |father| father[:name].casecmp("john") == 0 }
@fathers.select { |father| father[:name].casecmp("john") == 0 }
In case the OP wants to squash the 2 commits specified into 1, here is an alternate way to do it without rebasing
git checkout HEAD^ # go to the first commit you want squashed
git reset --soft HEAD^ # go to the second one but keep the tree and index the same
git commit --amend -C HEAD@{1} # use the message from first commit (omit this to change)
git checkout HEAD@{3} -- . # get the tree from the commit you did not want to touch
git add -A # add everything
git commit -C HEAD@{3} # commit again using the message from that commit
The @{N)
syntax is handy to know as it will allow you to reference the history of where your references were. In this case it's HEAD which represents your current commit.
You can try with this code (Same case)
chaine1 + chaine2;
I suggest you also (I prefer this) the string.concat method
string CurrentMonth = String.Format("{0:MMMM}", DateTime.Now)
Easiest way:
param_a = 1
param_b = 2
result = param_a === param_b ? 'Same!' : 'Not same!'
since param_a
is not equal to param_b
then the result
's value will be Not same!
Hope this will help you...
RadioButton rb = (RadioButton) findViewById(R.id.yourFirstRadioButton);
rb.setOnClickListener(first_radio_listener);
and
OnClickListener first_radio_listener = new OnClickListener (){
public void onClick(View v) {
//Your Implementaions...
}
};
The above will not work, in my experience, before you name the root-element in the array to something, I have not been able to access anything in the final json before that.
$sth = mysql_query("SELECT ...");
$rows = array();
while($r = mysql_fetch_assoc($sth)) {
$rows['root_name'] = $r;
}
print json_encode($rows);
That should do the trick!
This is very easy to understand if you track class and instance dictionaries.
class C:
one = 42
def __init__(self,val):
self.two=val
ci=C(50)
print(ci.__dict__)
print(C.__dict__)
The result will be like this:
{'two': 50}
{'__module__': '__main__', 'one': 42, '__init__': <function C.__init__ at 0x00000213069BF6A8>, '__dict__': <attribute '__dict__' of 'C' objects>, '__weakref__': <attribute '__weakref__' of 'C' objects>, '__doc__': None}
Note I set the full results in here but what is important that the instance ci
dict will be just {'two': 50}
, and class dictionary will have the 'one': 42
key value pair inside.
This is all you should know about that specific variables.
int
, when holding numbers.int
is too small, use a long
long
is too small, use BigInteger
Collection
, handling null
, ...) use Integer
/Long
insteadThis is advice, not an answer: You are much, much better off using dedicated mailing list software. mailman is an oft-used example, but something as simple as mlmmj may suffice. Sending mass mails is actually a more difficult task than it actually appears to be. Not only do you have to send the mails, you also have to keep track of "dead" addresses to avoid your mail, or worse, your mailserver, being marked as spam. You have to handle people unsubscribing for much the same reason.
You can implement these things yourself, but particularly bounce handling is difficult and unrewarding work. Using a mailing list manager will make things a lot easier.
As for how to make your mail palatable for yahoo, that is another matter entirely. For all its faults, they seem to put great stock in SPF and DomainKey. You probably will have to implement them, which will require co-operation from your mail server administrator.
You can write a jQuery function like this to determine if an element is in the viewport.
Include this somewhere after jQuery is included:
$.fn.isInViewport = function() {
var elementTop = $(this).offset().top;
var elementBottom = elementTop + $(this).outerHeight();
var viewportTop = $(window).scrollTop();
var viewportBottom = viewportTop + $(window).height();
return elementBottom > viewportTop && elementTop < viewportBottom;
};
Sample usage:
$(window).on('resize scroll', function() {
if ($('#Something').isInViewport()) {
// do something
} else {
// do something else
}
});
Note that this only checks the top and bottom positions of elements, it doesn't check if an element is outside of the viewport horizontally.
Working Solution in Java:
import java.awt.event.*;
import java.awt.Robot;
public class CircleMouse {
/* circle stuff */
final static int RADIUS = 100;
final static int XSTART = 500;
final static int YSTART = 500;
final static int DELAYMS = 1;
final static int ROUNDS = 5;
public static void main(String args[]) {
long startT = System.currentTimeMillis();
Robot bot = null;
try {
bot = new Robot();
} catch (Exception failed) {
System.err.println("Failed instantiating Robot: " + failed);
}
int mask = InputEvent.BUTTON1_DOWN_MASK;
int howMany = 360 * ROUNDS;
while (howMany > 0) {
int x = getX(howMany);
int y = getY(howMany);
bot.mouseMove(x, y);
bot.delay(DELAYMS);
System.out.println("x:" + x + " y:" + y);
howMany--;
}
long endT = System.currentTimeMillis();
System.out.println("Duration: " + (endT - startT));
}
/**
*
* @param angle
* in degree
* @return
*/
private static int getX(int angle) {
double radians = Math.toRadians(angle);
Double x = RADIUS * Math.cos(radians) + XSTART;
int result = x.intValue();
return result;
}
/**
*
* @param angle
* in degree
* @return
*/
private static int getY(int angle) {
double radians = Math.toRadians(angle);
Double y = RADIUS * Math.sin(radians) + YSTART;
int result = y.intValue();
return result;
}
}
I'll answer this question via Simple Javascript that is supported in all browsers that I have tested so far (IE8 to IE11, Chrome, FF etc).
Here is the code.
function GetFileSizeNameAndType()_x000D_
{_x000D_
var fi = document.getElementById('file'); // GET THE FILE INPUT AS VARIABLE._x000D_
_x000D_
var totalFileSize = 0;_x000D_
_x000D_
// VALIDATE OR CHECK IF ANY FILE IS SELECTED._x000D_
if (fi.files.length > 0)_x000D_
{_x000D_
// RUN A LOOP TO CHECK EACH SELECTED FILE._x000D_
for (var i = 0; i <= fi.files.length - 1; i++)_x000D_
{_x000D_
//ACCESS THE SIZE PROPERTY OF THE ITEM OBJECT IN FILES COLLECTION. IN THIS WAY ALSO GET OTHER PROPERTIES LIKE FILENAME AND FILETYPE_x000D_
var fsize = fi.files.item(i).size;_x000D_
totalFileSize = totalFileSize + fsize;_x000D_
document.getElementById('fp').innerHTML =_x000D_
document.getElementById('fp').innerHTML_x000D_
+_x000D_
'<br /> ' + 'File Name is <b>' + fi.files.item(i).name_x000D_
+_x000D_
'</b> and Size is <b>' + Math.round((fsize / 1024)) //DEFAULT SIZE IS IN BYTES SO WE DIVIDING BY 1024 TO CONVERT IT IN KB_x000D_
+_x000D_
'</b> KB and File Type is <b>' + fi.files.item(i).type + "</b>.";_x000D_
}_x000D_
}_x000D_
document.getElementById('divTotalSize').innerHTML = "Total File(s) Size is <b>" + Math.round(totalFileSize / 1024) + "</b> KB";_x000D_
}
_x000D_
<p>_x000D_
<input type="file" id="file" multiple onchange="GetFileSizeNameAndType()" />_x000D_
</p>_x000D_
_x000D_
<div id="fp"></div>_x000D_
<p>_x000D_
<div id="divTotalSize"></div>_x000D_
</p>
_x000D_
*Please note that we are displaying filesize in KB (Kilobytes). To get in MB divide it by 1024 * 1024 and so on*.
In Manifest theme sets with style name (AppTheme and myDialog)/ You can set new styles in styles.xml
<intent-filter>
<action android:name="android.intent.action.MAIN" />
<category android:name="android.intent.category.LAUNCHER" />
</intent-filter>
</activity>
<activity
android:name=".MyActivity2"
android:label="@string/title_activity_my_activity2"
android:theme="@style/myDialog"
>
</activity>
</application>
styles.xml example
<resources>
<!-- Base application theme. -->
<style name="AppTheme" parent="android:Theme.Black">
<!-- Customize your theme here. -->
</style>
<style name="myDialog" parent="android:Theme.Dialog">
</style>
In parent you set actualy the theme
For people finding this post and using PHP5.5+, this might help.
I was finding the approach suggested by netcoder wasn't working. i.e. this didn't work:
$tmpfile = $_FILES['image']['tmp_name'];
$filename = basename($_FILES['image']['name']);
$data = array(
'uploaded_file' => '@'.$tmpfile.';filename='.$filename,
);
$ch = curl_init();
curl_setopt($ch, CURLOPT_POSTFIELDS, $data);
I would receive in the $_POST
var the 'uploaded_file'
field - and nothing in the $_FILES
var.
It turns out that for php5.5+ there is a new curl_file_create()
function you need to use. So the above would become:
$data = array(
'uploaded_file' => curl_file_create($tmpfile, $_FILES['image']['type'], $filename)
);
As the @
format is now deprecated.
Kindly check the following:
1) Your eclipse version,whether it is compatible with what version of java. Have that.
2)Check the operating system specific BIT requirements either 32/64 with eclipse version.
3)Usually java will be installed in ProgramFiles for Java if both OS & Java are 64 bit else it will be in ProgramFiles(x86) if java is 32bit and OS is 64Bit.
4)Last but not least check the environment variables for Java whether it meets the requirements of your eclipse version.
Hope this Helps you!
Try using this Function.It Will help You:-
public class Main {
public static void main(String args[])
{
Date today=new Date();
Date myDate=new Date(today.getYear(),today.getMonth()-1,today.getDay());
System.out.println("My Date is"+myDate);
System.out.println("Today Date is"+today);
if(today.compareTo(myDate)<0)
System.out.println("Today Date is Lesser than my Date");
else if(today.compareTo(myDate)>0)
System.out.println("Today Date is Greater than my date");
else
System.out.println("Both Dates are equal");
}
}
There is no use of pointers in java so far. You can create an object from the class and use different classes which are linked with each other and use the functions of every class in main class.
Consider the second script. If you import it in another one, the instructions, as at "global level", will be executed.
If your project's source code has import statements that reference classes that are in widget.jar, you should add the jar to your projects Compile-time Libraries. (The jar widget.jar will automatically be added to your project's Run-time Libraries). That corresponds to (1).
If your source code has imports for classes in some other jar and the source code for those classes has import statements that reference classes in widget.jar, you should add widget.jar to the Run-time libraries list. That corresponds to (2).
You can add the jars directly to the Libraries list in the project properties. You can also create a Library that contains the jar file and then include that Library in the Compile-time or Run-time Libraries list.
If you create a NetBeans Library for widget.jar, you can also associate source code for the jar's content and Javadoc for the APIs defined in widget.jar. This additional information about widget.jar will be used by NetBeans as you debug code. It will also be used to provide addition information when you use code completion in the editor.
You should avoid using Tools >> Java Platform to add a jar to a project. That dialog allows you to modify the classpath that is used to compile and run all projects that use the Java Platform that you create. That may be useful at times but hides your project's dependency on widget.jar almost completely.
I'm detecting the back button by this way:
window.onload = function () {
if (typeof history.pushState === "function") {
history.pushState("jibberish", null, null);
window.onpopstate = function () {
history.pushState('newjibberish', null, null);
// Handle the back (or forward) buttons here
// Will NOT handle refresh, use onbeforeunload for this.
};
}
It works but I have to create a cookie in Chrome to detect that i'm in the page on first time because when i enter in the page without control by cookie, the browser do the back action without click in any back button.
if (typeof history.pushState === "function"){
history.pushState("jibberish", null, null);
window.onpopstate = function () {
if ( ((x=usera.indexOf("Chrome"))!=-1) && readCookie('cookieChrome')==null )
{
addCookie('cookieChrome',1, 1440);
}
else
{
history.pushState('newjibberish', null, null);
}
};
}
AND VERY IMPORTANT, history.pushState("jibberish", null, null);
duplicates the browser history.
Some one knows who can i fix it?
You could get the full path as a string then split it into a list using your operating system's separator character. Then you get the program name, folder name etc by accessing the elements from the end of the list using negative indices.
Like this:
import os
strPath = os.path.realpath(__file__)
print( f"Full Path :{strPath}" )
nmFolders = strPath.split( os.path.sep )
print( "List of Folders:", nmFolders )
print( f"Program Name :{nmFolders[-1]}" )
print( f"Folder Name :{nmFolders[-2]}" )
print( f"Folder Parent:{nmFolders[-3]}" )
The output of the above was this:
Full Path :C:\Users\terry\Documents\apps\environments\dev\app_02\app_02.py
List of Folders: ['C:', 'Users', 'terry', 'Documents', 'apps', 'environments', 'dev', 'app_02', 'app_02.py']
Program Name :app_02.py
Folder Name :app_02
Folder Parent:dev
In your new code,
int func(int *B){
*B[0] = 5;
}
B
is a pointer to int
, thus B[0]
is an int
, and you can't dereference an int
. Just remove the *
,
int func(int *B){
B[0] = 5;
}
and it works.
In the initialisation
int B[10] = {NULL};
you are initialising anint
with a void*
(NULL
). Since there is a valid conversion from void*
to int
, that works, but it is not quite kosher, because the conversion is implementation defined, and usually indicates a mistake by the programmer, hence the compiler warns about it.
int B[10] = {0};
is the proper way to 0-initialise an int[10]
.
You messed up the second part of your if
condition. That should be a <= 90
.
Also, FYI, there is a C library function tolower
that does this already:
#include <ctype.h>
#include <stdio.h>
int main() {
putchar(tolower('A'));
}
td
cellThe answers provided do a great job to right-align text in a td
cell.
This might not be the solution when you're looking to align a block element as commented in the accepted answer. To achieve such with a block element, I have found it useful to make use of margins;
selector {
margin: top right bottom left;
}
td {
/* there is a shorthand, TODO! */
margin: auto 0 auto auto;
}
td {
margin: auto auto auto auto;
}
/* or the short-hand */
margin: auto;
td {
margin: auto;
}
Alternatively, you could make you td
content display inline-block
if that's an option, but that may distort the position of its child elements.
You can compile your C programs with an ARM cross-compiler:
arm-linux-gnueabi-gcc -static -march=armv7-a test.c -o test
Then you can push your compiled binary file to somewhere (don't push it in to the SD card):
adb push test /data/local/tmp/test
Or if you just want to redefine the behavior of the console (in order to add logs for example) You can do something like that:
// define a new console
var console=(function(oldCons){
return {
log: function(text){
oldCons.log(text);
// Your code
},
info: function (text) {
oldCons.info(text);
// Your code
},
warn: function (text) {
oldCons.warn(text);
// Your code
},
error: function (text) {
oldCons.error(text);
// Your code
}
};
}(window.console));
//Then redefine the old console
window.console = console;
The same problem I came across, but I solved by following these steps of code.
Step 1) npm install -g @angular/cli
Step 2) ng new my-angular-project
Step 3) cd my-angular-project
Step 4) ng serve --open
You can either use the answer from the duplicate link pointed by nvm.
Or you can resolve conflicts by using their changes (but some of your changes might be kept if they don't conflict with remote version):
git pull -s recursive -X theirs
Try This Code $scope.DSRListGrid.data = data; this one for source data
for (var prop in data[0]) {
if (data[0].hasOwnProperty(prop)) {
$scope.ListColumns.push(
{
"name": prop,
"field": prop,
"width": 150,
"headerCellClass": 'font-12'
}
);
}
}
console.log($scope.ListColumns);
Use
getActivity().getApplicationContext()
to obtain the context in any fragment
eval
is not an acceptable practice if your directory names can be generated by untrusted sources. See BashFAQ #48 for more on why eval
should not be used, and BashFAQ #50 for more on the root cause of this problem and its proper solutions, some of which are touched on below:
If you need to build up your commands over time, use arrays:
tar_cmd=( tar cv "$directory" )
split_cmd=( split -b 1024m - "$backup_file" )
encrypt_cmd=( openssl des3 -salt )
"${tar_cmd[@]}" | "${encrypt_cmd[@]}" | "${split_cmd[@]}"
Alternately, if this is just about defining your commands in one central place, use functions:
tar_cmd() { tar cv "$directory"; }
split_cmd() { split -b 1024m - "$backup_file"; }
encrypt_cmd() { openssl des3 -salt; }
tar_cmd | split_cmd | encrypt_cmd
Well here is my 2 cents...
int numBSTnodes(const Node* pNode){
if(pNode == NULL) return 0;
return (numBSTnodes(pNode->left)+numBSTnodes(pNode->right)+1);
}
//This function will find Kth smallest element
Node* findKthSmallestBSTelement(Node* root, int k){
Node* pTrav = root;
while(k > 0){
int numNodes = numBSTnodes(pTrav->left);
if(numNodes >= k){
pTrav = pTrav->left;
}
else{
//subtract left tree nodes and root count from 'k'
k -= (numBSTnodes(pTrav->left) + 1);
if(k == 0) return pTrav;
pTrav = pTrav->right;
}
return NULL;
}
You could use extension methods to make it a little more readable:
public static class DateTimeExtensions
{
public static bool InRange(this DateTime dateToCheck, DateTime startDate, DateTime endDate)
{
return dateToCheck >= startDate && dateToCheck < endDate;
}
}
Now you can write:
dateToCheck.InRange(startDate, endDate)
If you are running out of heap space during the surefire (or failsafe) JUnit testing run, changing MAVEN_OPTS may not help you. I kept trying different configurations in MAVEN_OPTS with no luck until I found this post that fixed the problem.
Basically the JUnits fork off into their own environment and ignore the settings in MAVEN_OPTS. You need to configure surefire in your pom to add more memory for the JUnits.
Hopefully this can save someone else some time!
Edit: Copying solution from Keith Chapman's blog just in case the link breaks some day:
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-surefire-plugin</artifactId>
<configuration>
<forkMode>pertest</forkMode>
<argLine>-Xms256m -Xmx512m</argLine>
<testFailureIgnore>false</testFailureIgnore>
<skip>false</skip>
<includes>
<include>**/*IntegrationTestSuite.java</include>
</includes>
</configuration>
</plugin>
Update (5/31/2017): Thanks to @johnstosh for pointing this out - surefire has evolved a bit since I put this answer out there. Here is a link to their documentation and an updated code sample (arg line is still the important part for this question):
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-surefire-plugin</artifactId>
<version>2.20</version>
<configuration>
<forkCount>3</forkCount>
<reuseForks>true</reuseForks>
<argLine>-Xmx1024m -XX:MaxPermSize=256m</argLine>
<systemPropertyVariables>
<databaseSchema>MY_TEST_SCHEMA_${surefire.forkNumber}</databaseSchema>
</systemPropertyVariables>
<workingDirectory>FORK_DIRECTORY_${surefire.forkNumber}</workingDirectory>
</configuration>
</plugin>
A direct process to install / configure Plugin Manager
:
pluginmanager.dll
file and paste in C:\Program Files\Notepad++\Plugins\PluginManager
directory. Note: Create the
PluginManager
directory if it is not present.
if there are multiple java processes and you wish to kill them with one command try the below command
kill -9 $(ps -ef | pgrep -f "java")
replace "java" with any process string identifier , to kill anything else.
This probably works for a lot of things but it's not enough for Maven and certainly not for the maven compiler plugin.
Check Mike's answer to his own question here: stackoverflow question 24705877
This solved the issue for me both command line AND within eclipse.
Also, @LinGao answer to stackoverflow question 2503658 and the use of the $JAVACMD variable might help but I haven't tested it myself.
Or you can create a form with action:mailto
<form action="mailto:[email protected]">
check this out.
http://webdesign.about.com/od/forms/a/aa072699mailto.htm
But this actually submits a form via email.Is this what you wanted? You can also use just
<button onclick="">
and then some javascript with it to ahieve this.
And you can make a <a>
look like button.
There can be a lot of ways to work this around. Do a little search.
I've got a problem when configured Tomcat' server.xml
and added Context element.
He just doesn't want to use my config:
http://www.oreillynet.com/onjava/blog/2006/12/configuration_antipatterns_tom.html
If you're in a Unix-like
system:
mv $CATALINA_HOME/webapps/ROOT $CATALINA_HOME/webapps/___ROOT
ln -s $CATALINA_HOME/webapps/your_project $CATALINA_HOME/webapps/ROOT
Done.
Works for me.
Require all granted seemed a bit to far for me. Looking at the documentation I used: Require ip 192.168
to allow all internal access.
<LocationMatch "^/(?i:(?:xampp|security|licenses|phpmyadmin|webalizer|server-status|server-info))">
Require local
Require ip 192.168
ErrorDocument 403 /error/XAMPP_FORBIDDEN.html.var
</LocationMatch>
Better Go with more simpler way by using org.json
lib. Just do a very simple approach as below:
JSONObject obj = new JSONObject();
obj.put("phonetype", "N95");
obj.put("cat", "WP");
Now obj
is your converted JSONObject
form of your respective String. This is in case if you have name-value pairs.
For a string you can directly pass to the constructor of JSONObject
. If it'll be a valid json String
, then okay otherwise it'll throw an exception.
try to use proper tags for HTML5 controls Like for Number(integers)
<input type='number' min='0' pattern ='[0-9]*' step='1'/>
for Decimals or float
<input type='number' min='0' step='Any'/>
step='Any' Without this you cannot submit your form entering any decimal or float value like 3.5 or 4.6 in the above field.
Try fixing the pattern , type for HTML5 controls to fix this issue.
the answer https://stackoverflow.com/a/6132093/1498669 is right.
There is also an update to both 2002 and 2003 runtimes just do an search on microsoft download
and you find the offical updates to the products
however, the latest patches seem to be:
I just managed to wedge myself pretty thoroughly trying to follow user619330's advice above. The situation was: (1): I had added some files while working on my initial branch, branch1; (2) I created a new branch, branch2 for further development, branching it off from the trunk and then merging in my changes from branch1 (3) A co-worker had copied my mods from branch1 to his own branch, added further mods, and then merged back to the trunk; (4) I now wanted to merge the latest changes from trunk into my current working branch, branch2. This is with svn 1.6.17.
The merge had tree conflicts with the new files, and I wanted the new version from the trunk where they differed, so from a clean copy of branch2, I did an svn delete of the conflicting files, committed these branch2 changes (thus creating a temporary version of branch2 without the files in question), and then did my merge from the trunk. I did this because I wanted the history to match the trunk version so that I wouldn't have more problems later when trying to merge back to trunk. Merge went fine, I got the trunk version of the files, svn st shows all ok, and then I hit more tree conflicts while trying to commit the changes, between the delete I had done earlier and the add from the merge. Did an svn resolve of the conflicts in favor of my working copy (which now had the trunk version of the files), and got it to commit. All should be good, right?
Well, no. An update of another copy of branch2 resulted in the old version of the files (pre-trunk merge). So now I have two different working copies of branch2, supposedly updated to the same version, with two different versions of the files, and both insisting that they are fully up to date! Checking out a clean copy of branch2 resulted in the old (pre-trunk) version of the files. I manually update these to the trunk version and commit the changes, go back to my first working copy (from which I had submitted the trunk changes originally), try to update it, and now get a checksum error on the files in question. Blow the directory in question away, get a new version via update, and finally I have what should be a good version of branch2 with the trunk changes. I hope. Caveat developer.
Straight from the php.ini file:
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
; Error handling and logging ;
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
; This directive informs PHP of which errors, warnings and notices you would like
; it to take action for. The recommended way of setting values for this
; directive is through the use of the error level constants and bitwise
; operators. The error level constants are below here for convenience as well as
; some common settings and their meanings.
; By default, PHP is set to take action on all errors, notices and warnings EXCEPT
; those related to E_NOTICE and E_STRICT, which together cover best practices and
; recommended coding standards in PHP. For performance reasons, this is the
; recommend error reporting setting. Your production server shouldn't be wasting
; resources complaining about best practices and coding standards. That's what
; development servers and development settings are for.
; Note: The php.ini-development file has this setting as E_ALL. This
; means it pretty much reports everything which is exactly what you want during
; development and early testing.
;
; Error Level Constants:
; E_ALL - All errors and warnings (includes E_STRICT as of PHP 5.4.0)
; E_ERROR - fatal run-time errors
; E_RECOVERABLE_ERROR - almost fatal run-time errors
; E_WARNING - run-time warnings (non-fatal errors)
; E_PARSE - compile-time parse errors
; E_NOTICE - run-time notices (these are warnings which often result
; from a bug in your code, but it's possible that it was
; intentional (e.g., using an uninitialized variable and
; relying on the fact it is automatically initialized to an
; empty string)
; E_STRICT - run-time notices, enable to have PHP suggest changes
; to your code which will ensure the best interoperability
; and forward compatibility of your code
; E_CORE_ERROR - fatal errors that occur during PHP's initial startup
; E_CORE_WARNING - warnings (non-fatal errors) that occur during PHP's
; initial startup
; E_COMPILE_ERROR - fatal compile-time errors
; E_COMPILE_WARNING - compile-time warnings (non-fatal errors)
; E_USER_ERROR - user-generated error message
; E_USER_WARNING - user-generated warning message
; E_USER_NOTICE - user-generated notice message
; E_DEPRECATED - warn about code that will not work in future versions
; of PHP
; E_USER_DEPRECATED - user-generated deprecation warnings
;
; Common Values:
; E_ALL (Show all errors, warnings and notices including coding standards.)
; E_ALL & ~E_NOTICE (Show all errors, except for notices)
; E_ALL & ~E_NOTICE & ~E_STRICT (Show all errors, except for notices and coding standards warnings.)
; E_COMPILE_ERROR|E_RECOVERABLE_ERROR|E_ERROR|E_CORE_ERROR (Show only errors)
; Default Value: E_ALL & ~E_NOTICE & ~E_STRICT & ~E_DEPRECATED
; Development Value: E_ALL
; Production Value: E_ALL & ~E_DEPRECATED & ~E_STRICT
; http://php.net/error-reporting
error_reporting = E_ALL & ~E_DEPRECATED & ~E_STRICT
For pure development I go for:
error_reporting = E_ALL ^ E_NOTICE ^ E_WARNING
Also don't forget to put display_errors to on
display_errors = On
After that, restart your server for Apache on Ubuntu:
sudo /etc/init.d/apache2 restart
This worked for me:
GRANT USAGE ON *.* TO 'username'@'localhost';
DROP USER 'username'@'localhost';
This creates the user if it doesn't already exist (and grants it a harmless privilege), then deletes it either way. Found solution here: http://bugs.mysql.com/bug.php?id=19166
Updates: @Hao recommends adding IDENTIFIED BY
; @andreb (in comments) suggests disabling NO_AUTO_CREATE_USER
.
For VB6:
You need to declare your C functions as __stdcall, otherwise you get "invalid calling convention" type errors. About other your questions:
can I take arguments by pointer/reference from the VB front-end?
Yes, use ByRef/ByVal modifiers.
Can the DLL call a theoretical function in the front-end?
Yes, use AddressOf statement. You need to pass function pointer to dll before.
Or have a function take a "function pointer" (I don't even know if that's possible) from VB and call it?)
Yes, use AddressOf statement.
update (more questions appeared :)):
to load it into VB, do I just do the usual method (what I would do to load winsock.ocx or some other runtime, but find my DLL instead) or do I put an API call into a module?
You need to decaler API function in VB6 code, like next:
Private Declare Function SHGetSpecialFolderLocation Lib "shell32" _
(ByVal hwndOwner As Long, _
ByVal nFolder As Long, _
ByRef pidl As Long) As Long
.htaccess:
php_flag display_startup_errors on
php_flag display_errors on
php_flag html_errors on
php_flag log_errors on
php_value error_log /home/path/public_html/domain/PHP_errors.log
for i in range(len(arr)):
if l[-1] > l[i]:
l[-1], l[i] = l[i], l[-1]
break
as a result of this if last element is greater than element at position i
then they both get swapped .
In addition to others' proposals, there is another option to handle that issue.
If your application should behave the same in case of lack of "href
" attribute, as in case of it being empty, just replace this:
var theHref = $(obj.mainImg_select).attr('href');
with this:
var theHref = $(obj.mainImg_select).attr('href') || '';
which will treat empty string (''
) as the default, if the attribute has not been found.
But it really depends, on how you want to handle undefined "href
" attribute. This answer assumes you will want to handle it as if it was empty string.
You can also make the python script run as a service using a shell script. First create a shell script to run the python script like this (scriptname arbitary name)
#!/bin/sh
script='/home/.. full path to script'
/usr/bin/python $script &
now make a file in /etc/init.d/scriptname
#! /bin/sh
PATH=/bin:/usr/bin:/sbin:/usr/sbin
DAEMON=/home/.. path to shell script scriptname created to run python script
PIDFILE=/var/run/scriptname.pid
test -x $DAEMON || exit 0
. /lib/lsb/init-functions
case "$1" in
start)
log_daemon_msg "Starting feedparser"
start_daemon -p $PIDFILE $DAEMON
log_end_msg $?
;;
stop)
log_daemon_msg "Stopping feedparser"
killproc -p $PIDFILE $DAEMON
PID=`ps x |grep feed | head -1 | awk '{print $1}'`
kill -9 $PID
log_end_msg $?
;;
force-reload|restart)
$0 stop
$0 start
;;
status)
status_of_proc -p $PIDFILE $DAEMON atd && exit 0 || exit $?
;;
*)
echo "Usage: /etc/init.d/atd {start|stop|restart|force-reload|status}"
exit 1
;;
esac
exit 0
Now you can start and stop your python script using the command /etc/init.d/scriptname start or stop.
Looking at the droplevels
methods code in the R source you can see it wraps to factor
function. That means you can basically recreate the column with factor
function.
Below the data.table way to drop levels from all the factor columns.
library(data.table)
dt = data.table(letters=factor(letters[1:5]), numbers=seq(1:5))
levels(dt$letters)
#[1] "a" "b" "c" "d" "e"
subdt = dt[numbers <= 3]
levels(subdt$letters)
#[1] "a" "b" "c" "d" "e"
upd.cols = sapply(subdt, is.factor)
subdt[, names(subdt)[upd.cols] := lapply(.SD, factor), .SDcols = upd.cols]
levels(subdt$letters)
#[1] "a" "b" "c"
Here's an example of a sieve implementation in JavaScript:
function getPrimes(max) {
var sieve = [], i, j, primes = [];
for (i = 2; i <= max; ++i) {
if (!sieve[i]) {
// i has not been marked -- it is prime
primes.push(i);
for (j = i << 1; j <= max; j += i) {
sieve[j] = true;
}
}
}
return primes;
}
Then getPrimes(100)
will return an array of all primes between 2 and 100 (inclusive). Of course, due to memory constraints, you can't use this with large arguments.
A Java implementation would look very similar.
If you are already using javascript take a look at jQuery. It supports a browser independent "last-child" selector and you can do something like this.
$("td:last-child").css({border:"none"})
An actual JSON request would look like this:
data: '{"command":"on"}',
Where you're sending an actual JSON string. For a more general solution, use JSON.stringify()
to serialize an object to JSON, like this:
data: JSON.stringify({ "command": "on" }),
To support older browsers that don't have the JSON
object, use json2.js which will add it in.
What's currently happening is since you have processData: false
, it's basically sending this: ({"command":"on"}).toString()
which is [object Object]
...what you see in your request.
After installing the Office PIA (primary interop assemblies), add a reference to your project -> its on the .NET tab - component name "Office"
Use dispatch group
dispatchGroup.enter()
FirstOperation(completion: { _ in
dispatchGroup.leave()
})
dispatchGroup.enter()
SecondOperation(completion: { _ in
dispatchGroup.leave()
})
dispatchGroup.wait() // Waits here on this thread until the two operations complete executing.
By chance, is this occurring on a directory using OverlayFS (or some other special file system type)?
I just had this issue where my cross-compiled version of bash would use an internal implementation of getcwd
which has issues with OverlayFS. I found information about this here:
It seems that this can be traced to an internal implementation of getcwd() in bash. When cross-compiled, it can't check for getcwd() use of malloc, so it is cautious and sets GETCWD_BROKEN and uses an internal implementation of getcwd(). This internal implementation doesn't seem to work well with OverlayFS.
http://permalink.gmane.org/gmane.linux.embedded.yocto.general/25204
You can configure and rebuild bash with bash_cv_getcwd_malloc=yes
(if you're actually building bash and your C library does malloc a getcwd call).
Here's what I use:
<logger name="org.hibernate">
<level value="warn"/>
</logger>
<logger name="org.hibernate.SQL">
<level value="warn"/>
</logger>
<logger name="org.hibernate.type">
<level value="warn"/>
</logger>
<root>
<priority value="info"/>
<appender-ref ref="C1"/>
</root>
Obviously, I don't like to see Hibernate messages ;) -- set the level to "debug" to get the output.
To Understand the difference, one needs to to understand that "the godfather" paradigm of both procedural and functional programming is the imperative programming.
Basically procedural programming is merely a way of structuring imperative programs in which the primary method of abstraction is the "procedure." (or "function" in some programming languages). Even Object Oriented Programming is just another way of structuring an imperative program, where the state is encapsulated in objects, becoming an object with a "current state," plus this object has a set of functions, methods, and other stuff that let you the programmer manipulate or update the state.
Now, in regards to functional programming, the gist in its approach is that it identifies what values to take and how these values should be transferred. (so there is no state, and no mutable data as it takes functions as first class values and pass them as parameters to other functions).
PS: understanding every programming paradigm is used for should clarify the differences between all of them.
PSS: In the end of the day, programming paradigms are just different approaches to solving problems.
PSS: this quora answer has a great explanation.
You could round down the time.
Using ROUND
below will round it down to midnight.
WHERE Orders.OrderStatus = 'Shipped'
AND Orders.ShipDate > CONVERT(datetime, (ROUND(convert(float, getdate()-6.5),0)))
in Angular 2.x.x , 4, 5 ...
<form #loginForm="ngForm">
<input type="text" required>
<button type="submit" [disabled]="loginForm.form.invalid">Submit</button>
</form>
its easy to implement a BST using two classes, 1. Node and 2. Tree Tree class will be just for user interface, and actual methods will be implemented in Node class.
class Node():
def __init__(self,val):
self.value = val
self.left = None
self.right = None
def _insert(self,data):
if data == self.value:
return False
elif data < self.value:
if self.left:
return self.left._insert(data)
else:
self.left = Node(data)
return True
else:
if self.right:
return self.right._insert(data)
else:
self.right = Node(data)
return True
def _inorder(self):
if self:
if self.left:
self.left._inorder()
print(self.value)
if self.right:
self.right._inorder()
class Tree():
def __init__(self):
self.root = None
def insert(self,data):
if self.root:
return self.root._insert(data)
else:
self.root = Node(data)
return True
def inorder(self):
if self.root is not None:
return self.root._inorder()
else:
return False
if __name__=="__main__":
a = Tree()
a.insert(16)
a.insert(8)
a.insert(24)
a.insert(6)
a.insert(12)
a.insert(19)
a.insert(29)
a.inorder()
Inorder function for checking whether BST is properly implemented.
Select multiple lines by clicking first line then holding shift and clicking last line. Then press:
CTRL+SHIFT+L
or on MAC: CMD+SHIFT+L (as per comments)
Alternatively you can select lines and go to SELECTION MENU >> SPLIT INTO LINES.
Now you can edit multiple lines, move cursors etc. for all selected lines.
findAny
& orElse
By using findAny()
and orElse()
:
Person matchingObject = objects.stream().
filter(p -> p.email().equals("testemail")).
findAny().orElse(null);
Stops looking after finding an occurrence.
findAny
Optional<T> findAny()
Returns an Optional describing some element of the stream, or an empty Optional if the stream is empty. This is a short-circuiting terminal operation. The behavior of this operation is explicitly nondeterministic; it is free to select any element in the stream. This is to allow for maximal performance in parallel operations; the cost is that multiple invocations on the same source may not return the same result. (If a stable result is desired, use findFirst() instead.)
Very, very rarely.
I did it only for one very very specific known cases. For example, java.lang.UnsatisfiedLinkError could be throw if two independence ClassLoader load same DLL. (I agree that I should move the JAR to a shared classloader)
But most common case is that you needed logging in order to know what happened when user come to complain. You want a message or a popup to user, rather then silently dead.
Even programmer in C/C++, they pop an error and tell something people don't understand before it exit (e.g. memory failure).
In Oracle 11g, if you want to search any text in whole database or procedure below mentioned query can be used:
select * from user_source WHERE UPPER(text) LIKE '%YOUR SAGE%'
There is already plenty of good solutions here, but I would like to share how I solved this problem on my own and hope that this might be helpful for somebody who would also like to derive his own solution.
After some pondering about the problem I have come up with two following conclusions:
L
of size n
there will be equal number of solutions starting with L1, L2 ... Ln elements of the list. Since in total there are n!
permutations of the list of size n
, we get n! / n = (n-1)!
permutations in each group.[a,b]
and [b,a]
. Using these two simple ideas I have derived the following algorithm:
permute array
if array is of size 2
return first and second element as new array
return second and first element as new array
else
for each element in array
new subarray = array with excluded element
return element + permute subarray
Here is how I implemented this in C#:
public IEnumerable<List<T>> Permutate<T>(List<T> input)
{
if (input.Count == 2) // this are permutations of array of size 2
{
yield return new List<T>(input);
yield return new List<T> {input[1], input[0]};
}
else
{
foreach(T elem in input) // going through array
{
var rlist = new List<T>(input); // creating subarray = array
rlist.Remove(elem); // removing element
foreach(List<T> retlist in Permutate(rlist))
{
retlist.Insert(0,elem); // inserting the element at pos 0
yield return retlist;
}
}
}
}
The trim() method removes whitespace from both sides of a string.
To remove all the spaces from the string use .replace(/\s/g, "")
this.maintabinfo = this.inner_view_data.replace(/\s/g, "").toLowerCase();
From here:
-Xmn : the size of the heap for the young generation
Young generation represents all the objects which have a short life of time. Young generation objects are in a specific location into the heap, where the garbage collector will pass often. All new objects are created into the young generation region (called "eden"). When an object survive is still "alive" after more than 2-3 gc cleaning, then it will be swap has an "old generation" : they are "survivor".
And a more "official" source from IBM:
-Xmn
Sets the initial and maximum size of the new (nursery) heap to the specified value when using -Xgcpolicy:gencon. Equivalent to setting both -Xmns and -Xmnx. If you set either -Xmns or -Xmnx, you cannot set -Xmn. If you attempt to set -Xmn with either -Xmns or -Xmnx, the VM will not start, returning an error. By default, -Xmn is selected internally according to your system's capability. You can use the -verbose:sizes option to find out the values that the VM is currently using.
I have created a function which will convert a csv string to an array. The function knows how to escape special characters, and it works with or without enclosure chars.
$dataArray = csvstring_to_array( file_get_contents('Address.csv'));
I tried it with your csv sample and it works as expected!
function csvstring_to_array($string, $separatorChar = ',', $enclosureChar = '"', $newlineChar = "\n") {
// @author: Klemen Nagode
$array = array();
$size = strlen($string);
$columnIndex = 0;
$rowIndex = 0;
$fieldValue="";
$isEnclosured = false;
for($i=0; $i<$size;$i++) {
$char = $string{$i};
$addChar = "";
if($isEnclosured) {
if($char==$enclosureChar) {
if($i+1<$size && $string{$i+1}==$enclosureChar){
// escaped char
$addChar=$char;
$i++; // dont check next char
}else{
$isEnclosured = false;
}
}else {
$addChar=$char;
}
}else {
if($char==$enclosureChar) {
$isEnclosured = true;
}else {
if($char==$separatorChar) {
$array[$rowIndex][$columnIndex] = $fieldValue;
$fieldValue="";
$columnIndex++;
}elseif($char==$newlineChar) {
echo $char;
$array[$rowIndex][$columnIndex] = $fieldValue;
$fieldValue="";
$columnIndex=0;
$rowIndex++;
}else {
$addChar=$char;
}
}
}
if($addChar!=""){
$fieldValue.=$addChar;
}
}
if($fieldValue) { // save last field
$array[$rowIndex][$columnIndex] = $fieldValue;
}
return $array;
}
Try this method to convert a 'string that could potentially contain html code' to 'text format':
$msg = "<div></div>";
$safe_msg = htmlspecialchars($msg, ENT_QUOTES);
echo $safe_msg;
Hope this helps!
Here's a an answer how to find country calling code without using third-party libraries (as real developer does):
Get list of all available country codes, Wikipedia can help here: https://en.wikipedia.org/wiki/List_of_country_calling_codes
Parse data in a tree structure where each digit is a branch.
Traverse your tree digit by digit until you are at the last branch - that's your country code.
I didn't find an intuitive explanation on the web, so now that I worked it out, here's my solution. This is for infinite lines (what I needed), not segments.
Some terms you might remember:
A line is defined as y = mx + b OR y = slope * x + y-intercept
Slope = rise over run = dy / dx = height / distance
Y-intercept is where the line crosses the Y axis, where X = 0
Given those definitions, here are some functions:
def slope(P1, P2):
# dy/dx
# (y2 - y1) / (x2 - x1)
return(P2[1] - P1[1]) / (P2[0] - P1[0])
def y_intercept(P1, slope):
# y = mx + b
# b = y - mx
# b = P1[1] - slope * P1[0]
return P1[1] - slope * P1[0]
def line_intersect(m1, b1, m2, b2):
if m1 == m2:
print ("These lines are parallel!!!")
return None
# y = mx + b
# Set both lines equal to find the intersection point in the x direction
# m1 * x + b1 = m2 * x + b2
# m1 * x - m2 * x = b2 - b1
# x * (m1 - m2) = b2 - b1
# x = (b2 - b1) / (m1 - m2)
x = (b2 - b1) / (m1 - m2)
# Now solve for y -- use either line, because they are equal here
# y = mx + b
y = m1 * x + b1
return x,y
Here's a simple test between two (infinite) lines:
A1 = [1,1]
A2 = [3,3]
B1 = [1,3]
B2 = [3,1]
slope_A = slope(A1, A2)
slope_B = slope(B1, B2)
y_int_A = y_intercept(A1, slope_A)
y_int_B = y_intercept(B1, slope_B)
print(line_intersect(slope_A, y_int_A, slope_B, y_int_B))
Output:
(2.0, 2.0)
int i = 100;
char c = (char)i;
There is no way to append one char to another. But you can create an array of chars and use it.
You would do that by providing a fully qualified name, e.g.:
SELECT tbl_names.id as id, name, section FROM tbl_names, tbl_section WHERE tbl_names.id = tbl_section.id
Which would give you the id of tbl_names
This is a modern Promise
version of the previous one, using a Promise.all
approach to resolve all promises when all files have been read:
/**
* Promise all
* @author Loreto Parisi (loretoparisi at gmail dot com)
*/
function promiseAllP(items, block) {
var promises = [];
items.forEach(function(item,index) {
promises.push( function(item,i) {
return new Promise(function(resolve, reject) {
return block.apply(this,[item,index,resolve,reject]);
});
}(item,index))
});
return Promise.all(promises);
} //promiseAll
/**
* read files
* @param dirname string
* @return Promise
* @author Loreto Parisi (loretoparisi at gmail dot com)
* @see http://stackoverflow.com/questions/10049557/reading-all-files-in-a-directory-store-them-in-objects-and-send-the-object
*/
function readFiles(dirname) {
return new Promise((resolve, reject) => {
fs.readdir(dirname, function(err, filenames) {
if (err) return reject(err);
promiseAllP(filenames,
(filename,index,resolve,reject) => {
fs.readFile(path.resolve(dirname, filename), 'utf-8', function(err, content) {
if (err) return reject(err);
return resolve({filename: filename, contents: content});
});
})
.then(results => {
return resolve(results);
})
.catch(error => {
return reject(error);
});
});
});
}
How to Use It:
Just as simple as doing:
readFiles( EMAIL_ROOT + '/' + folder)
.then(files => {
console.log( "loaded ", files.length );
files.forEach( (item, index) => {
console.log( "item",index, "size ", item.contents.length);
});
})
.catch( error => {
console.log( error );
});
Supposed that you have another list of folders you can as well iterate over this list, since the internal promise.all will resolve each of then asynchronously:
var folders=['spam','ham'];
folders.forEach( folder => {
readFiles( EMAIL_ROOT + '/' + folder)
.then(files => {
console.log( "loaded ", files.length );
files.forEach( (item, index) => {
console.log( "item",index, "size ", item.contents.length);
});
})
.catch( error => {
console.log( error );
});
});
How it Works
The promiseAll
does the magic. It takes a function block of signature function(item,index,resolve,reject)
, where item
is the current item in the array, index
its position in the array, and resolve
and reject
the Promise
callback functions.
Each promise will be pushed in a array at the current index
and with the current item
as arguments through a anonymous function call:
promises.push( function(item,i) {
return new Promise(function(resolve, reject) {
return block.apply(this,[item,index,resolve,reject]);
});
}(item,index))
Then all promises will be resolved:
return Promise.all(promises);
For me this work for example here what happen is the main menu will be disabled when you open the registration form.
frmUserRegistration frmMainMenu = new frmUserRegistration();
frmMainMenu.ShowDialog(this);
A built-in Map type is now available in JavaScript. It can be used instead of simply using Object. It is supported by current versions of all major browsers.
Maps do not support the [subscript]
notation used by Objects. That syntax implicitly casts the subscript
value to a primitive string or symbol. Maps support any values as keys, so you must use the methods .get(key)
, .set(key, value)
and .has(key)
.
var m = new Map();_x000D_
var key1 = 'key1';_x000D_
var key2 = {};_x000D_
var key3 = {};_x000D_
_x000D_
m.set(key1, 'value1');_x000D_
m.set(key2, 'value2');_x000D_
_x000D_
console.assert(m.has(key2), "m should contain key2.");_x000D_
console.assert(!m.has(key3), "m should not contain key3.");
_x000D_
Objects only supports primitive strings and symbols as keys, because the values are stored as properties. If you were using Object, it wouldn't be able to to distinguish key2
and key3
because their string representations would be the same:
var o = new Object();_x000D_
var key1 = 'key1';_x000D_
var key2 = {};_x000D_
var key3 = {};_x000D_
_x000D_
o[key1] = 'value1';_x000D_
o[key2] = 'value2';_x000D_
_x000D_
console.assert(o.hasOwnProperty(key2), "o should contain key2.");_x000D_
console.assert(!o.hasOwnProperty(key3), "o should not contain key3."); // Fails!
_x000D_
Setting "expires" to a past date is the standard way to delete a cookie.
Your problem is probably because the date format is not conventional. IE probably expects GMT only.
I'm building a React server-side renderer and found this can also occur when building a separate server config from scratch. If you're seeing this error, try the following:
Example:
const serverConfig = {
name: 'server',
context: path.join(__dirname, 'src'),
entry: {serverEntry: ['./server-entry.js']},
output: {
path: path.join(__dirname, 'public'),
filename: 'server.js',
publicPath: 'public/',
libraryTarget: 'commonjs2'
},
module: {
rules: [/*...*/]
},
resolveLoader: {
modules: [
path.join(__dirname, 'node_modules')
]
},
resolve: {
modules: [
path.join(__dirname, 'node_modules')
]
}
};
The Java tutorial says:
Terminology: Nested classes are divided into two categories: static and non-static. Nested classes that are declared static are simply called static nested classes. Non-static nested classes are called inner classes.
In common parlance, the terms "nested" and "inner" are used interchangeably by most programmers, but I'll use the correct term "nested class" which covers both inner and static.
Classes can be nested ad infinitum, e.g. class A can contain class B which contains class C which contains class D, etc. However, more than one level of class nesting is rare, as it is generally bad design.
There are three reasons you might create a nested class:
There are four kinds of nested class in Java. In brief, they are:
Let me elaborate in more details.
Static classes are the easiest kind to understand because they have nothing to do with instances of the containing class.
A static class is a class declared as a static member of another class. Just like other static members, such a class is really just a hanger on that uses the containing class as its namespace, e.g. the class Goat declared as a static member of class Rhino in the package pizza is known by the name pizza.Rhino.Goat.
package pizza;
public class Rhino {
...
public static class Goat {
...
}
}
Frankly, static classes are a pretty worthless feature because classes are already divided into namespaces by packages. The only real conceivable reason to create a static class is that such a class has access to its containing class's private static members, but I find this to be a pretty lame justification for the static class feature to exist.
An inner class is a class declared as a non-static member of another class:
package pizza;
public class Rhino {
public class Goat {
...
}
private void jerry() {
Goat g = new Goat();
}
}
Like with a static class, the inner class is known as qualified by its containing class name, pizza.Rhino.Goat, but inside the containing class, it can be known by its simple name. However, every instance of an inner class is tied to a particular instance of its containing class: above, the Goat created in jerry, is implicitly tied to the Rhino instance this in jerry. Otherwise, we make the associated Rhino instance explicit when we instantiate Goat:
Rhino rhino = new Rhino();
Rhino.Goat goat = rhino.new Goat();
(Notice you refer to the inner type as just Goat in the weird new syntax: Java infers the containing type from the rhino part. And, yes new rhino.Goat() would have made more sense to me too.)
So what does this gain us? Well, the inner class instance has access to the instance members of the containing class instance. These enclosing instance members are referred to inside the inner class via just their simple names, not via this (this in the inner class refers to the inner class instance, not the associated containing class instance):
public class Rhino {
private String barry;
public class Goat {
public void colin() {
System.out.println(barry);
}
}
}
In the inner class, you can refer to this of the containing class as Rhino.this, and you can use this to refer to its members, e.g. Rhino.this.barry.
A local inner class is a class declared in the body of a method. Such a class is only known within its containing method, so it can only be instantiated and have its members accessed within its containing method. The gain is that a local inner class instance is tied to and can access the final local variables of its containing method. When the instance uses a final local of its containing method, the variable retains the value it held at the time of the instance's creation, even if the variable has gone out of scope (this is effectively Java's crude, limited version of closures).
Because a local inner class is neither the member of a class or package, it is not declared with an access level. (Be clear, however, that its own members have access levels like in a normal class.)
If a local inner class is declared in an instance method, an instantiation of the inner class is tied to the instance held by the containing method's this at the time of the instance's creation, and so the containing class's instance members are accessible like in an instance inner class. A local inner class is instantiated simply via its name, e.g. local inner class Cat is instantiated as new Cat(), not new this.Cat() as you might expect.
An anonymous inner class is a syntactically convenient way of writing a local inner class. Most commonly, a local inner class is instantiated at most just once each time its containing method is run. It would be nice, then, if we could combine the local inner class definition and its single instantiation into one convenient syntax form, and it would also be nice if we didn't have to think up a name for the class (the fewer unhelpful names your code contains, the better). An anonymous inner class allows both these things:
new *ParentClassName*(*constructorArgs*) {*members*}
This is an expression returning a new instance of an unnamed class which extends ParentClassName. You cannot supply your own constructor; rather, one is implicitly supplied which simply calls the super constructor, so the arguments supplied must fit the super constructor. (If the parent contains multiple constructors, the “simplest” one is called, “simplest” as determined by a rather complex set of rules not worth bothering to learn in detail--just pay attention to what NetBeans or Eclipse tell you.)
Alternatively, you can specify an interface to implement:
new *InterfaceName*() {*members*}
Such a declaration creates a new instance of an unnamed class which extends Object and implements InterfaceName. Again, you cannot supply your own constructor; in this case, Java implicitly supplies a no-arg, do-nothing constructor (so there will never be constructor arguments in this case).
Even though you can't give an anonymous inner class a constructor, you can still do any setup you want using an initializer block (a {} block placed outside any method).
Be clear that an anonymous inner class is simply a less flexible way of creating a local inner class with one instance. If you want a local inner class which implements multiple interfaces or which implements interfaces while extending some class other than Object or which specifies its own constructor, you're stuck creating a regular named local inner class.
Adding @Manbroski answer here that worked for me:
try Ctrl-Shift-P
Editor: Toggle Soft Tabs
When you install Python, you can set up the path. If path is already defined then what you can do is within VS Code, hit Ctrl+Shift+P and type Python: Select Interpreter and select updated version of Python. Follow this link for more information, https://code.visualstudio.com/docs/python/environments
We can get a list of files inside a folder on the file system using various golang standard library functions.
package main
import (
"fmt"
"io/ioutil"
"log"
"os"
"path/filepath"
)
func main() {
var (
root string
files []string
err error
)
root := "/home/manigandan/golang/samples"
// filepath.Walk
files, err = FilePathWalkDir(root)
if err != nil {
panic(err)
}
// ioutil.ReadDir
files, err = IOReadDir(root)
if err != nil {
panic(err)
}
//os.File.Readdir
files, err = OSReadDir(root)
if err != nil {
panic(err)
}
for _, file := range files {
fmt.Println(file)
}
}
The
path/filepath
package provides a handy way to scan all the files in a directory, it will automatically scan each sub-directories in the directory.
func FilePathWalkDir(root string) ([]string, error) {
var files []string
err := filepath.Walk(root, func(path string, info os.FileInfo, err error) error {
if !info.IsDir() {
files = append(files, path)
}
return nil
})
return files, err
}
ioutil.ReadDir
reads the directory named by dirname and returns a list of directory entries sorted by filename.
func IOReadDir(root string) ([]string, error) {
var files []string
fileInfo, err := ioutil.ReadDir(root)
if err != nil {
return files, err
}
for _, file := range fileInfo {
files = append(files, file.Name())
}
return files, nil
}
Readdir reads the contents of the directory associated with file and returns a slice of up to n FileInfo values, as would be returned by Lstat, in directory order. Subsequent calls on the same file will yield further FileInfos.
func OSReadDir(root string) ([]string, error) {
var files []string
f, err := os.Open(root)
if err != nil {
return files, err
}
fileInfo, err := f.Readdir(-1)
f.Close()
if err != nil {
return files, err
}
for _, file := range fileInfo {
files = append(files, file.Name())
}
return files, nil
}
Benchmark results.
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