you don't need to specify a "SimpleDateFormat", it's simple: You must do specify the constant "DatatypeConstants.FIELD_UNDEFINED" where you don't want to show
GregorianCalendar cal = new GregorianCalendar();
cal.setTime(new Date());
XMLGregorianCalendar xmlDate = DatatypeFactory.newInstance().newXMLGregorianCalendarDate(cal.get(Calendar.YEAR), cal.get(Calendar.MONTH)+1, cal.get(Calendar.DAY_OF_MONTH), DatatypeConstants.FIELD_UNDEFINED);
From java.util.Date to XMLGregorianCalendar you can simply do:
import javax.xml.datatype.XMLGregorianCalendar;
import javax.xml.datatype.DatatypeFactory;
import java.util.GregorianCalendar;
......
GregorianCalendar gcalendar = new GregorianCalendar();
gcalendar.setTime(yourDate);
XMLGregorianCalendar xmlDate = DatatypeFactory.newInstance().newXMLGregorianCalendar(gcalendar);
Code edited after the first comment of @f-puras, by cause i do a mistake.
The DateTime
should always be internally in the "american" (Gregorian) calendar. So if you do
var str = dateTime.ToString(@"yyyy/MM/dd hh:mm:ss tt", new CultureInfo("en-US"));
you should get what you want in many less lines.
Why such complications?
public static GregorianCalendar convertFromDMY(String dd_mm_yy) throws ParseException
{
SimpleDateFormat fmt = new SimpleDateFormat("dd-MMM-yyyy");
Date date = fmt.parse(dd_mm_yy);
GregorianCalendar cal = GregorianCalendar.getInstance();
cal.setTime(date);
return cal;
}
The simpler and current approach for adding header to a single request is:
// Step 1
const yourHeader: HttpHeaders = new HttpHeaders({
Authorization: 'Bearer JWT-token'
});
// POST request
this.http.post(url, body, { headers: yourHeader });
// GET request
this.http.get(url, { headers: yourHeader });
Marc's answer is of course the right answer. But since he mentioned the shift operators and unsafe code as an alternative. I would like to share a less common alternative. Using a struct with Explicit
layout. This is similar in principal to a C/C++ union
.
Here is an example of a struct that can be used to get to the component bytes of the Int32 data type and the nice thing is that it is two way, you can manipulate the byte values and see the effect on the Int.
using System.Runtime.InteropServices;
[StructLayout(LayoutKind.Explicit)]
struct Int32Converter
{
[FieldOffset(0)] public int Value;
[FieldOffset(0)] public byte Byte1;
[FieldOffset(1)] public byte Byte2;
[FieldOffset(2)] public byte Byte3;
[FieldOffset(3)] public byte Byte4;
public Int32Converter(int value)
{
Byte1 = Byte2 = Byte3 = Byte4 = 0;
Value = value;
}
public static implicit operator Int32(Int32Converter value)
{
return value.Value;
}
public static implicit operator Int32Converter(int value)
{
return new Int32Converter(value);
}
}
The above can now be used as follows
Int32Converter i32 = 256;
Console.WriteLine(i32.Byte1);
Console.WriteLine(i32.Byte2);
Console.WriteLine(i32.Byte3);
Console.WriteLine(i32.Byte4);
i32.Byte2 = 2;
Console.WriteLine(i32.Value);
Of course the immutability police may not be excited about the last possiblity :)
$('.form-fild input,.form-fild textarea').focus(function() {_x000D_
$(this).parent().addClass('open');_x000D_
});_x000D_
_x000D_
$('.form-fild input,.form-fild textarea').blur(function() {_x000D_
$(this).parent().removeClass('open');_x000D_
});
_x000D_
.open {_x000D_
color:red; _x000D_
}_x000D_
.form-fild {_x000D_
position: relative;_x000D_
margin: 30px 0;_x000D_
}_x000D_
.form-fild label {_x000D_
position: absolute;_x000D_
top: 5px;_x000D_
left: 10px;_x000D_
padding:5px;_x000D_
}_x000D_
_x000D_
.form-fild.open label {_x000D_
top: -25px;_x000D_
left: 10px;_x000D_
/*background: #ffffff;*/_x000D_
}_x000D_
.form-fild input[type="text"] {_x000D_
padding-left: 80px;_x000D_
}_x000D_
.form-fild textarea {_x000D_
padding-left: 80px;_x000D_
}_x000D_
.form-fild.open textarea, _x000D_
.form-fild.open input[type="text"] {_x000D_
padding-left: 10px;_x000D_
}_x000D_
textarea,_x000D_
input[type="text"] {_x000D_
padding: 10px;_x000D_
width: 100%;_x000D_
}_x000D_
textarea,_x000D_
input,_x000D_
.form-fild.open label,_x000D_
.form-fild label {_x000D_
-webkit-transition: all 0.2s ease-in-out;_x000D_
-moz-transition: all 0.2s ease-in-out;_x000D_
-o-transition: all 0.2s ease-in-out;_x000D_
transition: all 0.2s ease-in-out;_x000D_
}
_x000D_
<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>_x000D_
<div class="container">_x000D_
<div class="row">_x000D_
<form>_x000D_
<div class="form-fild">_x000D_
<label>Name :</label>_x000D_
<input type="text">_x000D_
</div>_x000D_
<div class="form-fild">_x000D_
<label>Email :</label>_x000D_
<input type="text">_x000D_
</div>_x000D_
<div class="form-fild">_x000D_
<label>Number :</label>_x000D_
<input type="text">_x000D_
</div>_x000D_
<div class="form-fild">_x000D_
<label>Message :</label>_x000D_
<textarea cols="10" rows="5"></textarea>_x000D_
</div>_x000D_
</form>_x000D_
</div>_x000D_
</div>
_x000D_
I am fine with regular expressions, lazy and averse to installs, so I created a batch file that creates the directory and copies with vanilla DOS commands. Seems laborious but quicker for me than working out robocopy.
(.*)
replace string "\1"
, and click replace all(.*)
replace string md qqq\1\nxcopy \1 qqq\1\n
and click replace all\\([^\\^"]+)"\n
replace \\"\n
A:\src
and B:\dest
). Turn OFF regular expressions, search qqq"A:\src\
replace B:\dest\
and click replace all.md will create nested directories. copy would probably behave identically to xcopy in this example. You might want to add /Y to xcopy to suppress overwrite confirms. You end up with a batch file like so:
md "B:\dest\a\b\c\"
xcopy "C:\src\a\b\c\e.xyz" "B:\dest\a\b\c\e.xyz"
repeated for every file in your original list. Tested on Win7.
Looks like the NoCoffee Vision Simulator extension for Chrome will also cause this error. Just adding it as a prospective cause for people looking in their own instance.
No, you can only get to the interior color of a cell by using a Macro. I am afraid. It's really easy to do (cell.interior.color) so unless you have a requirement that restricts you from using VBA, I say go for it.
dataframe.limit(1).count > 0
This also triggers a job but since we are selecting single record, even in case of billion scale records the time consumption could be much lower.
We have just uploaded AmbilWarna color picker to Maven:
https://github.com/yukuku/ambilwarna
It can be used either as a dialog or as a Preference entry.
Do I need to double the size of the .box div to 400px by 400px to match the new high res background image
No, but you do need to set the background-size
property to match the original dimensions:
@media (-webkit-min-device-pixel-ratio: 2),
(min-resolution: 192dpi) {
.box{
background:url('images/[email protected]') no-repeat top left;
background-size: 200px 200px;
}
}
EDIT
To add a little more to this answer, here is the retina detection query I tend to use:
@media
only screen and (-webkit-min-device-pixel-ratio: 2),
only screen and ( min--moz-device-pixel-ratio: 2),
only screen and ( -o-min-device-pixel-ratio: 2/1),
only screen and ( min-device-pixel-ratio: 2),
only screen and ( min-resolution: 192dpi),
only screen and ( min-resolution: 2dppx) {
}
NB. This min--moz-device-pixel-ratio:
is not a typo. It is a well documented bug in certain versions of Firefox and should be written like this in order to support older versions (prior to Firefox 16).
- Source
As @LiamNewmarch mentioned in the comments below, you can include the background-size
in your shorthand background
declaration like so:
.box{
background:url('images/[email protected]') no-repeat top left / 200px 200px;
}
However, I personally would not advise using the shorthand form as it is not supported in iOS <= 6 or Android making it unreliable in most situations.
Here's my solution using json.dump():
def jsonWrite(p, pyobj, ensure_ascii=False, encoding=SYSTEM_ENCODING, **kwargs):
with codecs.open(p, 'wb', 'utf_8') as fileobj:
json.dump(pyobj, fileobj, ensure_ascii=ensure_ascii,encoding=encoding, **kwargs)
where SYSTEM_ENCODING is set to:
locale.setlocale(locale.LC_ALL, '')
SYSTEM_ENCODING = locale.getlocale()[1]
I had the same problems and it seems that they removed the destroy command from the CLI and you need to do it manually by deleting or renaming the according folders/files and imports, which is really a laborious task.
https://github.com/angular/angular-cli/issues/900 https://github.com/angular/angular-cli/issues/1788
The literal answer is:
return (value == 1 ? Periods.VariablePeriods : Periods.FixedPeriods);
Note that the inline if statement, just like an if statement, only checks for true or false. If (value == 1) evaluates to false, it might not necessarily mean that value == 2. Therefore it would be safer like this:
return (value == 1
? Periods.VariablePeriods
: (value == 2
? Periods.FixedPeriods
: Periods.Unknown));
If you add more values an inline if will become unreadable and a switch would be preferred:
switch (value)
{
case 1:
return Periods.VariablePeriods;
case 2:
return Periods.FixedPeriods;
}
The good thing about enums is that they have a value, so you can use the values for the mapping, as user854301 suggested. This way you can prevent unnecessary branches thus making the code more readable and extensible.
If nothing worked for you, make sure the file is not open in another program. I was trying to import an xlsx file and Excel was blocking me from doing so.
Try like this for query string:
from flask import Flask, request
app = Flask(__name__)
@app.route('/parameters', methods=['GET'])
def query_strings():
args1 = request.args['args1']
args2 = request.args['args2']
args3 = request.args['args3']
return '''<h1>The Query String are...{}:{}:{}</h1>''' .format(args1,args2,args3)
if __name__ == '__main__':
app.run(debug=True)
I am not sure if I understand you correctly, does this help?
ps --ppid <pid of the parent>
From the openssl.pc file
prefix=/usr
exec_prefix=${prefix}
libdir=${exec_prefix}/lib
includedir=${prefix}/include
Name: OpenSSL
Description: Secure Sockets Layer and cryptography libraries and tools
Version: 0.9.8g
Requires:
Libs: -L${libdir} -lssl -lcrypto
Libs.private: -ldl -Wl,-Bsymbolic-functions -lz
Cflags: -I${includedir}
You can note the Include directory path and the Libs path from this. Now your prefix for the include files is /home/username/Programming
.
Hence your include file option should be -I//home/username/Programming
.
(Yes i got it from the comments above)
This is just to remove logs regarding the headers. You may as well provide -L<Lib path>
option for linking with the -lcrypto
library.
From "Fixing LINQ Error: Sequence contains no elements":
When you get the LINQ error "Sequence contains no elements", this is usually because you are using the
First()
orSingle()
command rather thanFirstOrDefault()
andSingleOrDefault()
.
This can also be caused by the following commands:
FirstAsync()
SingleAsync()
Last()
LastAsync()
Max()
Min()
Average()
Aggregate()
$total=0;
foreach($group as $key=>$value)
{
echo $key. " = " .$value. "<br>";
$total+= $value;
}
echo $total;
Here is the answer with more extra format.
** Xcode 12, Swift 5.3 **
let dateFormatter = DateFormatter()
dateFormatter.dateFormat = "HH:mm:ss"
var dateFromStr = dateFormatter.date(from: "12:16:45")!
dateFormatter.dateFormat = "hh:mm:ss a 'on' MMMM dd, yyyy"
//Output: 12:16:45 PM on January 01, 2000
dateFormatter.dateFormat = "E, d MMM yyyy HH:mm:ss Z"
//Output: Sat, 1 Jan 2000 12:16:45 +0600
dateFormatter.dateFormat = "yyyy-MM-dd'T'HH:mm:ssZ"
//Output: 2000-01-01T12:16:45+0600
dateFormatter.dateFormat = "EEEE, MMM d, yyyy"
//Output: Saturday, Jan 1, 2000
dateFormatter.dateFormat = "MM-dd-yyyy HH:mm"
//Output: 01-01-2000 12:16
dateFormatter.dateFormat = "MMM d, h:mm a"
//Output: Jan 1, 12:16 PM
dateFormatter.dateFormat = "HH:mm:ss.SSS"
//Output: 12:16:45.000
dateFormatter.dateFormat = "MMM d, yyyy"
//Output: Jan 1, 2000
dateFormatter.dateFormat = "MM/dd/yyyy"
//Output: 01/01/2000
dateFormatter.dateFormat = "hh:mm:ss a"
//Output: 12:16:45 PM
dateFormatter.dateFormat = "MMMM yyyy"
//Output: January 2000
dateFormatter.dateFormat = "dd.MM.yy"
//Output: 01.01.00
//Output: Customisable AP/PM symbols
dateFormatter.amSymbol = "am"
dateFormatter.pmSymbol = "Pm"
dateFormatter.dateFormat = "a"
//Output: Pm
// Usage
var timeFromDate = dateFormatter.string(from: dateFromStr)
print(timeFromDate)
This is the code from the accepted answer above, with some changes made regarding the Base64 encoding. The code below compiles.
import java.io.BufferedReader;
import java.io.InputStream;
import java.io.InputStreamReader;
import java.net.HttpURLConnection;
import java.net.URL;
import org.apache.commons.codec.binary.Base64;
public class HttpBasicAuth {
public static void main(String[] args) {
try {
URL url = new URL ("http://ip:port/login");
Base64 b = new Base64();
String encoding = b.encodeAsString(new String("test1:test1").getBytes());
HttpURLConnection connection = (HttpURLConnection) url.openConnection();
connection.setRequestMethod("POST");
connection.setDoOutput(true);
connection.setRequestProperty ("Authorization", "Basic " + encoding);
InputStream content = (InputStream)connection.getInputStream();
BufferedReader in =
new BufferedReader (new InputStreamReader (content));
String line;
while ((line = in.readLine()) != null) {
System.out.println(line);
}
}
catch(Exception e) {
e.printStackTrace();
}
}
}
You need to have a byte[] in your DB.
My byte[] is in my Person object:
public class Person
{
public byte[] Image { get; set; }
}
You need to convert your byte[] in a String. So, I have in my controller :
String img = Convert.ToBase64String(person.Image);
Next, in my .cshtml file, my Model is a ViewModel. This is what I have in :
public String Image { get; set; }
I use it like this in my .cshtml file:
<img src="@String.Format("data:image/jpg;base64,{0}", Model.Image)" />
"data:image/image file extension;base64,{0}, your image String"
I wish it will help someone !
The constructor is a method which is automatically called on class instantiation. Which means the contents of a constructor are processed without separate method calls. The contents of a the class keyword parenthesis are passed to the constructor method.
final EditText tb = new EditText(this);
tb.requestFocus();
tb.postDelayed(new Runnable() {
@Override
public void run() {
InputMethodManager inputMethodManager = (InputMethodManager) getSystemService(Context.INPUT_METHOD_SERVICE);
inputMethodManager.showSoftInput(tb, InputMethodManager.SHOW_IMPLICIT);
}
}, 1000);
Update
If your popover is going to have a selector that is consistent then you can make use of selector
property of popover constructor.
var popOverSettings = {
placement: 'bottom',
container: 'body',
html: true,
selector: '[rel="popover"]', //Sepcify the selector here
content: function () {
return $('#popover-content').html();
}
}
$('body').popover(popOverSettings);
Other ways:
Mutation Event
/Mutation Observer
to identify if a particular element has been inserted on to the ul
or an element.var popOverSettings = { //Save the setting for later use as well
placement: 'bottom',
container: 'body',
html: true,
//content:" <div style='color:red'>This is your div content</div>"
content: function () {
return $('#popover-content').html();
}
}
$('ul').on('DOMNodeInserted', function () { //listed for new items inserted onto ul
$(event.target).popover(popOverSettings);
});
$("button[rel=popover]").popover(popOverSettings);
$('.pop-Add').click(function () {
$('ul').append("<li class='project-name'> <a>project name 2 <button class='pop-function' rel='popover'></button> </a> </li>");
});
But it is not recommended to use DOMNodeInserted Mutation Event for performance issues as well as support. This has been deprecated as well. So your best bet would be to save the setting and bind after you update with new element.
Another recommended way is to use MutationObserver instead of MutationEvent according to MDN, but again support in some browsers are unknown and performance a concern.
MutationObserver = window.MutationObserver || window.WebKitMutationObserver;
// create an observer instance
var observer = new MutationObserver(function (mutations) {
mutations.forEach(function (mutation) {
$(mutation.addedNodes).popover(popOverSettings);
});
});
// configuration of the observer:
var config = {
attributes: true,
childList: true,
characterData: true
};
// pass in the target node, as well as the observer options
observer.observe($('ul')[0], config);
The Comparator and Comparable interfaces are likely inapplicable here. They deal with sorting, and return integers of either sign, or 0. Your operation is about finding matches, and returning true/false. That's different.
What follows is an explanation for what is going on, scroll to bottom for code demos.
Passing parameter suppress=True
to function set_printoptions
works only for numbers that fit in the default 8 character space allotted to it, like this:
import numpy as np
np.set_printoptions(suppress=True) #prevent numpy exponential
#notation on print, default False
# tiny med large
a = np.array([1.01e-5, 22, 1.2345678e7]) #notice how index 2 is 8
#digits wide
print(a) #prints [ 0.0000101 22. 12345678. ]
However if you pass in a number greater than 8 characters wide, exponential notation is imposed again, like this:
np.set_printoptions(suppress=True)
a = np.array([1.01e-5, 22, 1.2345678e10]) #notice how index 2 is 10
#digits wide, too wide!
#exponential notation where we've told it not to!
print(a) #prints [1.01000000e-005 2.20000000e+001 1.23456780e+10]
numpy has a choice between chopping your number in half thus misrepresenting it, or forcing exponential notation, it chooses the latter.
Here comes set_printoptions(formatter=...)
to the rescue to specify options for printing and rounding. Tell set_printoptions
to just print bare a bare float:
np.set_printoptions(suppress=True,
formatter={'float_kind':'{:f}'.format})
a = np.array([1.01e-5, 22, 1.2345678e30]) #notice how index 2 is 30
#digits wide.
#Ok good, no exponential notation in the large numbers:
print(a) #prints [0.000010 22.000000 1234567799999999979944197226496.000000]
We've force-suppressed the exponential notation, but it is not rounded or justified, so specify extra formatting options:
np.set_printoptions(suppress=True,
formatter={'float_kind':'{:0.2f}'.format}) #float, 2 units
#precision right, 0 on left
a = np.array([1.01e-5, 22, 1.2345678e30]) #notice how index 2 is 30
#digits wide
print(a) #prints [0.00 22.00 1234567799999999979944197226496.00]
The drawback for force-suppressing all exponential notion in ndarrays is that if your ndarray gets a huge float value near infinity in it, and you print it, you're going to get blasted in the face with a page full of numbers.
from pprint import pprint
import numpy as np
#chaotic python list of lists with very different numeric magnitudes
my_list = [[3.74, 5162, 13683628846.64, 12783387559.86, 1.81],
[9.55, 116, 189688622.37, 260332262.0, 1.97],
[2.2, 768, 6004865.13, 5759960.98, 1.21],
[3.74, 4062, 3263822121.39, 3066869087.9, 1.93],
[1.91, 474, 44555062.72, 44555062.72, 0.41],
[5.8, 5006, 8254968918.1, 7446788272.74, 3.25],
[4.5, 7887, 30078971595.46, 27814989471.31, 2.18],
[7.03, 116, 66252511.46, 81109291.0, 1.56],
[6.52, 116, 47674230.76, 57686991.0, 1.43],
[1.85, 623, 3002631.96, 2899484.08, 0.64],
[13.76, 1227, 1737874137.5, 1446511574.32, 4.32],
[13.76, 1227, 1737874137.5, 1446511574.32, 4.32]]
#convert python list of lists to numpy ndarray called my_array
my_array = np.array(my_list)
#This is a little recursive helper function converts all nested
#ndarrays to python list of lists so that pretty printer knows what to do.
def arrayToList(arr):
if type(arr) == type(np.array):
#If the passed type is an ndarray then convert it to a list and
#recursively convert all nested types
return arrayToList(arr.tolist())
else:
#if item isn't an ndarray leave it as is.
return arr
#suppress exponential notation, define an appropriate float formatter
#specify stdout line width and let pretty print do the work
np.set_printoptions(suppress=True,
formatter={'float_kind':'{:16.3f}'.format}, linewidth=130)
pprint(arrayToList(my_array))
Prints:
array([[ 3.740, 5162.000, 13683628846.640, 12783387559.860, 1.810],
[ 9.550, 116.000, 189688622.370, 260332262.000, 1.970],
[ 2.200, 768.000, 6004865.130, 5759960.980, 1.210],
[ 3.740, 4062.000, 3263822121.390, 3066869087.900, 1.930],
[ 1.910, 474.000, 44555062.720, 44555062.720, 0.410],
[ 5.800, 5006.000, 8254968918.100, 7446788272.740, 3.250],
[ 4.500, 7887.000, 30078971595.460, 27814989471.310, 2.180],
[ 7.030, 116.000, 66252511.460, 81109291.000, 1.560],
[ 6.520, 116.000, 47674230.760, 57686991.000, 1.430],
[ 1.850, 623.000, 3002631.960, 2899484.080, 0.640],
[ 13.760, 1227.000, 1737874137.500, 1446511574.320, 4.320],
[ 13.760, 1227.000, 1737874137.500, 1446511574.320, 4.320]])
import numpy as np
#chaotic python list of lists with very different numeric magnitudes
# very tiny medium size large sized
# numbers numbers numbers
my_list = [[0.000000000074, 5162, 13683628846.64, 1.01e10, 1.81],
[1.000000000055, 116, 189688622.37, 260332262.0, 1.97],
[0.010000000022, 768, 6004865.13, -99e13, 1.21],
[1.000000000074, 4062, 3263822121.39, 3066869087.9, 1.93],
[2.91, 474, 44555062.72, 44555062.72, 0.41],
[5, 5006, 8254968918.1, 7446788272.74, 3.25],
[0.01, 7887, 30078971595.46, 27814989471.31, 2.18],
[7.03, 116, 66252511.46, 81109291.0, 1.56],
[6.52, 116, 47674230.76, 57686991.0, 1.43],
[1.85, 623, 3002631.96, 2899484.08, 0.64],
[13.76, 1227, 1737874137.5, 1446511574.32, 4.32],
[13.76, 1337, 1737874137.5, 1446511574.32, 4.32]]
import sys
#convert python list of lists to numpy ndarray called my_array
my_array = np.array(my_list)
#following two lines do the same thing, showing that np.savetxt can
#correctly handle python lists of lists and numpy 2D ndarrays.
np.savetxt(sys.stdout, my_list, '%19.2f')
np.savetxt(sys.stdout, my_array, '%19.2f')
Prints:
0.00 5162.00 13683628846.64 10100000000.00 1.81
1.00 116.00 189688622.37 260332262.00 1.97
0.01 768.00 6004865.13 -990000000000000.00 1.21
1.00 4062.00 3263822121.39 3066869087.90 1.93
2.91 474.00 44555062.72 44555062.72 0.41
5.00 5006.00 8254968918.10 7446788272.74 3.25
0.01 7887.00 30078971595.46 27814989471.31 2.18
7.03 116.00 66252511.46 81109291.00 1.56
6.52 116.00 47674230.76 57686991.00 1.43
1.85 623.00 3002631.96 2899484.08 0.64
13.76 1227.00 1737874137.50 1446511574.32 4.32
13.76 1337.00 1737874137.50 1446511574.32 4.32
0.00 5162.00 13683628846.64 10100000000.00 1.81
1.00 116.00 189688622.37 260332262.00 1.97
0.01 768.00 6004865.13 -990000000000000.00 1.21
1.00 4062.00 3263822121.39 3066869087.90 1.93
2.91 474.00 44555062.72 44555062.72 0.41
5.00 5006.00 8254968918.10 7446788272.74 3.25
0.01 7887.00 30078971595.46 27814989471.31 2.18
7.03 116.00 66252511.46 81109291.00 1.56
6.52 116.00 47674230.76 57686991.00 1.43
1.85 623.00 3002631.96 2899484.08 0.64
13.76 1227.00 1737874137.50 1446511574.32 4.32
13.76 1337.00 1737874137.50 1446511574.32 4.32
Notice that rounding is consistent at 2 units precision, and exponential notation is suppressed in both the very large e+x
and very small e-x
ranges.
In all the places I've worked, database has been mandatory because of application support. As Adam said, the user might not be at his desk or the machine might be off, or you might want to quickly change someone's configuration or assign a new-joiner a default (or team member's) config.
If the settings are likely to grow as new versions of the application are released, you might want to store the data as blobs which can then be deserialized by the application. This is especially useful if you use something like Prism which discovers modules, as you can't know what settings a module will return. The blobs could be keyed by username/machine composite key. That way you can have different settings for every machine.
I've not used the in-built Settings class much so I'll abstain from commenting. :)
Thread.currentThread().isInterrupted() is superbly working. but this code is only pause the timer.
This code is stop and reset the thread timer. h1 is handler name. This code is add on inside your button click listener. w_h =minutes w_m =milli sec i=counter
i=0;
w_h = 0;
w_m = 0;
textView.setText(String.format("%02d", w_h) + ":" + String.format("%02d", w_m));
hl.removeCallbacksAndMessages(null);
Thread.currentThread().isInterrupted();
}
});
}`
HANDLE hnd;
is the same as void * ptr;
HANDLE is a typedef defined in the winnt.h file in Visual Studio (Windows):
typedef void *HANDLE;
Read more about HANDLE
Rails does not use the stdlib's ERB by default, it uses erubis. Sources: this dev's comment, ActionView's gemspec, accepted merge request I did while writing this.
There are behavior differences between them, in particular on how the hyphen operators %-
and -%
work.
Documentation is scarce, Where is Ruby's ERB format "officially" defined? so what follows are empirical conclusions.
All tests suppose:
require 'erb'
require 'erubis'
When you can use -
-
to trim_mode
option of ERB.new
to use it.Examples:
begin ERB.new("<%= 'a' -%>\nb").result; rescue SyntaxError ; else raise; end
ERB.new("<%= 'a' -%>\nb" , nil, '-') .result == 'ab' or raise
Erubis::Eruby.new("<%= 'a' -%> \n b").result == 'a b' or raise
What -%
does:
ERB: remove the next character if it is a newline.
erubis:
in <% %>
(without =
), -
is useless because <% %>
and <% -%>
are the same. <% %>
removes the current line if it only contains whitespaces, and does nothing otherwise.
in <%= -%>
(with =
):
Examples:
# Remove
ERB.new("a \nb <% 0 -%>\n c", nil, '-').result == "a \nb c" or raise
# Don't do anything: not followed by newline, but by space:
ERB.new("a\n<% 0 -%> \nc", nil, '-').result == "a\nb \nc" or raise
# Remove the current line because only whitesapaces:
Erubis::Eruby.new(" <% 0 %> \nb").result == 'b' or raise
# Same as above, thus useless because longer.
Erubis::Eruby.new(" <% 0 -%> \nb").result == 'b' or raise
# Don't do anything because line not empty.
Erubis::Eruby.new("a <% 0 %> \nb").result == "a \nb" or raise
Erubis::Eruby.new(" <% 0 %> a\nb").result == " a\nb" or raise
Erubis::Eruby.new(" <% 0 -%> a\nb").result == " a\nb" or raise
# Don't remove the current line because of `=`:
Erubis::Eruby.new(" <%= 0 %> \nb").result == " 0 \nb" or raise
# Remove the current line even with `=`:
Erubis::Eruby.new(" <%= 0 -%> \nb").result == " 0b" or raise
# Remove forward only because of `-` and non space before:
Erubis::Eruby.new("a <%= 0 -%> \nb").result == "a 0b" or raise
# Don't do anything because non-whitespace forward:
Erubis::Eruby.new(" <%= 0 -%> a\nb").result == " 0 a\nb" or raise
What %-
does:
ERB: remove whitespaces before tag and after previous newlines, but only if there are only whitespaces before.
erubis: useless because <%- %>
is the same as <% %>
(without =
), and this cannot be used with =
which is the only case where -%
can be useful. So never use this.
Examples:
# Remove
ERB.new("a \n <%- 0 %> b\n c", nil, '-').result == "a \n b\n c" or raise
# b is not whitespace: do nothing:
ERB.new("a \nb <%- 0 %> c\n d", nil, '-').result == "a \nb c\n d" or raise
What %-
and -%
do together
The exact combination of both effects separately.
See docs.python.org:
When you’re done with a file, call f.close() to close it and free up any system resources taken up by the open file. After calling f.close(), attempts to use the file object will automatically fail.
Hence use close()
elegantly with try/finally
:
f = open('file.txt', 'r')
try:
# do stuff with f
finally:
f.close()
This ensures that even if # do stuff with f
raises an exception, f
will still be closed properly.
Note that open
should appear outside of the try
. If open
itself raises an exception, the file wasn't opened and does not need to be closed. Also, if open
raises an exception its result is not assigned to f
and it is an error to call f.close()
.
I resolve the problem. It's very simple . if do you checking care the problem may be because the auxiliar variable has whitespace. Why ? I don't know but yus must use the trim() method and will resolve the problem
I would just loop through your JRadioButtons
and call isSelected()
. If you really want to go from the ButtonGroup
you can only get to the models. You could match the models to the buttons, but then if you have access to the buttons, why not use them directly?
If you run ps -aux | dockerd
you should see the tcp endpoint it is running on.
Try this:
import * as moment from 'moment';
ngOnInit() {
this.date = moment().format("YYYY Do MMM");
}
Resolved promise:
return $q.when( someValue ); // angularjs 1.2+
return $q.resolve( someValue ); // angularjs 1.4+, alias to `when` to match ES6
Rejected promise:
return $q.reject( someValue );
The typical form for dynamically allocating an NxM array of type T is
T **a = malloc(sizeof *a * N);
if (a)
{
for (i = 0; i < N; i++)
{
a[i] = malloc(sizeof *a[i] * M);
}
}
If each element of the array has a different length, then replace M with the appropriate length for that element; for example
T **a = malloc(sizeof *a * N);
if (a)
{
for (i = 0; i < N; i++)
{
a[i] = malloc(sizeof *a[i] * length_for_this_element);
}
}
This helped me to call API that was using cookie authentication. I have passed authorization in header like this:
request.Headers.Set("Authorization", Utility.Helper.ReadCookie("AuthCookie"));
complete code:
// utility method to read the cookie value:
public static string ReadCookie(string cookieName)
{
var cookies = HttpContext.Current.Request.Cookies;
var cookie = cookies.Get(cookieName);
if (cookie != null)
return cookie.Value;
return null;
}
// using statements where you are creating your webclient
using System.Web.Script.Serialization;
using System.Net;
using System.IO;
// WebClient:
var requestUrl = "<API_url>";
var postRequest = new ClassRoom { name = "kushal seth" };
using (var webClient = new WebClient()) {
JavaScriptSerializer serializer = new JavaScriptSerializer();
byte[] requestData = Encoding.ASCII.GetBytes(serializer.Serialize(postRequest));
HttpWebRequest request = WebRequest.Create(requestUrl) as HttpWebRequest;
request.Method = "POST";
request.ContentType = "application/json";
request.ContentLength = requestData.Length;
request.ContentType = "application/json";
request.Expect = "application/json";
request.Headers.Set("Authorization", Utility.Helper.ReadCookie("AuthCookie"));
request.GetRequestStream().Write(requestData, 0, requestData.Length);
using (var response = (HttpWebResponse)request.GetResponse()) {
var reader = new StreamReader(response.GetResponseStream());
var objText = reader.ReadToEnd(); // objText will have the value
}
}
Unfortunately, crontabs have a very limited environment variables scope, thus you need to export them every time the corntab runs.
An easy approach would be the following example, suppose you've your env vars in a file called env, then:
* * * * * . ./env && /path/to_your/command
this part . ./env
will export them and then they're used within the same scope of your command
I work on 60-70% zoom vue and my dropdown are unreadable so I made this simple code to overcome the issue
Note that I selected first all my dropdown lsts (CTRL+mouse click), went on formula tab, clicked "define name" and called them "ProduktSelection"
Private Sub Worksheet_SelectionChange(ByVal Target As Range)
Dim KeyCells As Range
Set KeyCells = Range("ProduktSelection")
If Not Application.Intersect(KeyCells, Range(Target.Address)) _
Is Nothing Then
ActiveWindow.Zoom = 100
End If
End Sub
I then have another sub
Private Sub Worksheet_Change(ByVal Target As Range)
where I come back to 65% when value is changed.
@Html.CheckBox("yourId", true, new { value = Model.Ischecked })
This will certainly work
1. Installing OpenCV 2.4.3
First, get OpenCV 2.4.3 from sourceforge.net. Its a self-extracting so just double click to start the installation. Install it in a directory, say C:\
.
Wait until all files get extracted. It will create a new directory C:\opencv
which
contains OpenCV header files, libraries, code samples, etc.
Now you need to add the directory C:\opencv\build\x86\vc10\bin
to your system PATH. This directory contains OpenCV DLLs required for running your code.
Open Control Panel → System → Advanced system settings → Advanced Tab → Environment variables...
On the System Variables section, select Path (1), Edit (2), and type C:\opencv\build\x86\vc10\bin;
(3), then click Ok.
On some computers, you may need to restart your computer for the system to recognize the environment path variables.
This will completes the OpenCV 2.4.3 installation on your computer.
2. Create a new project and set up Visual C++
Open Visual C++ and select File → New → Project... → Visual C++ → Empty Project. Give a name for your project (e.g: cvtest
) and set the project location (e.g: c:\projects
).
Click Ok. Visual C++ will create an empty project.
Make sure that "Debug" is selected in the solution configuration combobox. Right-click cvtest
and select Properties → VC++ Directories.
Select Include Directories to add a new entry and type C:\opencv\build\include
.
Click Ok to close the dialog.
Back to the Property dialog, select Library Directories to add a new entry and type C:\opencv\build\x86\vc10\lib
.
Click Ok to close the dialog.
Back to the property dialog, select Linker → Input → Additional Dependencies to add new entries. On the popup dialog, type the files below:
opencv_calib3d243d.lib
opencv_contrib243d.lib
opencv_core243d.lib
opencv_features2d243d.lib
opencv_flann243d.lib
opencv_gpu243d.lib
opencv_haartraining_engined.lib
opencv_highgui243d.lib
opencv_imgproc243d.lib
opencv_legacy243d.lib
opencv_ml243d.lib
opencv_nonfree243d.lib
opencv_objdetect243d.lib
opencv_photo243d.lib
opencv_stitching243d.lib
opencv_ts243d.lib
opencv_video243d.lib
opencv_videostab243d.lib
Note that the filenames end with "d" (for "debug"). Also note that if you have installed another version of OpenCV (say 2.4.9) these filenames will end with 249d instead of 243d (opencv_core249d.lib..etc).
Click Ok to close the dialog. Click Ok on the project properties dialog to save all settings.
NOTE:
These steps will configure Visual C++ for the "Debug" solution. For "Release" solution (optional), you need to repeat adding the OpenCV directories and in Additional Dependencies section, use:
opencv_core243.lib
opencv_imgproc243.lib
...
instead of:
opencv_core243d.lib
opencv_imgproc243d.lib
...
You've done setting up Visual C++, now is the time to write the real code. Right click your project and select Add → New Item... → Visual C++ → C++ File.
Name your file (e.g: loadimg.cpp
) and click Ok. Type the code below in the editor:
#include <opencv2/highgui/highgui.hpp>
#include <iostream>
using namespace cv;
using namespace std;
int main()
{
Mat im = imread("c:/full/path/to/lena.jpg");
if (im.empty())
{
cout << "Cannot load image!" << endl;
return -1;
}
imshow("Image", im);
waitKey(0);
}
The code above will load c:\full\path\to\lena.jpg
and display the image. You can
use any image you like, just make sure the path to the image is correct.
Type F5 to compile the code, and it will display the image in a nice window.
And that is your first OpenCV program!
3. Where to go from here?
Now that your OpenCV environment is ready, what's next?
c:\opencv\samples\cpp
.Try doing the following
if (String.IsNullOrEmpty(MaterialTextBox.Text) || String.IsNullOrWhiteSpace(MaterialTextBox.Text))
{
//do job
}
else
{
MessageBox.Show("Please enter correct path");
}
Hope it helps
There's a cool tool made by @kovart called the dashed border generator.
It uses an svg as a background image to allow setting the stroke dash array you desire, and is pretty convenient.
You would then simply use it as the background property on your element in place of the border:
div {
background-image: url("data:image/svg+xml,%3csvg width='100%25' height='100%25' xmlns='http://www.w3.org/2000/svg'%3e%3crect width='100%25' height='100%25' fill='none' stroke='black' stroke-width='4' stroke-dasharray='6%2c 14' stroke-dashoffset='0' stroke-linecap='square'/%3e%3c/svg%3e");
padding: 20px;
display: inline-block;
}
If you question is something like this: tobeFormattedString = ["a", "b", "c"] Output = "abc"
String(tobeFormattedString)
If your data field is already a DateTime datatype, you don't need to use [DataType(DataType.Date)]
for the annotation; just use:
[DisplayFormat(ApplyFormatInEditMode = true, DataFormatString = "{0:MM/dd/yyyy}")]
on the jQuery, use datepicker for you calendar
$(document).ready(function () {
$('#StartDate').datepicker();
});
on your HTML, use EditorFor
helper:
@Html.EditorFor(model => model.StartDate)
cat >> filename
This is text, perhaps pasted in from some other source.
Or else entered at the keyboard, doesn't matter.
^D
Essentially, you can dump any text you want into the file. CTRL-D sends an end-of-file signal, which terminates input and returns you to the shell.
int [] SouceArray1 = new int[] {2,1,3};
int [] SourceArray2 = new int[] {4,5,6};
int [] targetArray = new int [SouceArray1.Length + SourceArray2.Length];
SouceArray1.CopyTo(targetArray,0);
SourceArray2.CopyTo(targetArray,SouceArray1.Length) ;
foreach (int i in targetArray) Console.WriteLine(i + " ");
Using the above code two Arrays can be easily merged.
Django has support for this, check get_or_create
person, created = Person.objects.get_or_create(name='abc')
if created:
# A new person object created
else:
# person object already exists
You can use: Thread.currentThread().isAlive();
. Returns true if this thread is alive; false otherwise.
I cam up with a recursive solution:
def sumDigits(num):
# print "evaluating:", num
if num < 10:
return num
# solution 1
# res = num/10
# rem = num%10
# print "res:", res, "rem:", rem
# return sumDigits(res+rem)
# solution 2
arr = [int(i) for i in str(num)]
return sumDigits(sum(arr))
# print(sumDigits(1))
# print(sumDigits(49))
print(sumDigits(439230))
# print(sumDigits(439237))
Use a DataTrigger
:
<DataGrid ItemsSource="{Binding YourItemsSource}">
<DataGrid.RowStyle>
<Style TargetType="DataGridRow">
<Style.Triggers>
<DataTrigger Binding="{Binding State}" Value="State1">
<Setter Property="Background" Value="Red"></Setter>
</DataTrigger>
<DataTrigger Binding="{Binding State}" Value="State2">
<Setter Property="Background" Value="Green"></Setter>
</DataTrigger>
</Style.Triggers>
</Style>
</DataGrid.RowStyle>
</DataGrid>
Android Recyclerview With onItemClickListener
,
Why we cant try this is working like ListView
only.
Source : Link
public class RecyclerItemClickListener implements RecyclerView.OnItemTouchListener {
private OnItemClickListener mListener;
public interface OnItemClickListener {
public void onItemClick(View view, int position);
}
GestureDetector mGestureDetector;
public RecyclerItemClickListener(Context context, OnItemClickListener listener) {
mListener = listener;
mGestureDetector = new GestureDetector(context, new GestureDetector.SimpleOnGestureListener() {
@Override
public boolean onSingleTapUp(MotionEvent e) {
return true;
}
});
}
@Override
public boolean onInterceptTouchEvent(RecyclerView view, MotionEvent e) {
View childView = view.findChildViewUnder(e.getX(), e.getY());
if (childView != null && mListener != null && mGestureDetector.onTouchEvent(e)) {
mListener.onItemClick(childView, view.getChildAdapterPosition(childView));
}
return false;
}
@Override
public void onTouchEvent(RecyclerView view, MotionEvent motionEvent) {
}
@Override
public void onRequestDisallowInterceptTouchEvent(boolean disallowIntercept) {
}
}
And Set this to RecyclerView:
recyclerView = (RecyclerView)rootView. findViewById(R.id.recyclerView);
RecyclerView.LayoutManager mLayoutManager = new LinearLayoutManager(getActivity());
recyclerView.setLayoutManager(mLayoutManager);
recyclerView.addOnItemTouchListener(
new RecyclerItemClickListener(getActivity(), new RecyclerItemClickListener.OnItemClickListener() {
@Override
public void onItemClick(View view, int position) {
// TODO Handle item click
Log.e("@@@@@",""+position);
}
})
);
I combined a bunch of the previous ideas into one extension method. The benefits here are that you get the correctly typed enumerable back, plus inheritance is handled correctly by OfType()
.
public static IEnumerable<T> FindAllChildrenByType<T>(this Control control)
{
IEnumerable<Control> controls = control.Controls.Cast<Control>();
return controls
.OfType<T>()
.Concat<T>(controls.SelectMany<Control, T>(ctrl => FindAllChildrenByType<T>(ctrl)));
}
For me, opening CMD and running
py
will show something like
Python 3.4.3 (v3.4.3:9b73f1c3e601, Feb 24 2015, 22:43:06) [MSC v.1600 32 bit (Intel)] on win32
Type "help", "copyright", "credits" or "license" for more information.
When user press F5 although new request goes to web server and get a responce for the request as well. But when the responce header is Parsed it check the required information in browser cache. If the required information in cache has not expired then that information is restored from in cache itself.
When user click on CTRL-F5 even then new request goes to web server and get a responce. But this time when the responce header is Parsed it do not check any required information in cache, and bring all updated information form server only.
If you want to switch between proxy for company network and remove proxy for home/personal network you can use --no-proxy
Sample usage:
npm install --save-dev "@angular/[email protected]" --no-proxy
Answering to myself. From the RequireJS website:
//THIS WILL FAIL
define(['require'], function (require) {
var namedModule = require('name');
});
This fails because requirejs needs to be sure to load and execute all dependencies before calling the factory function above. [...] So, either do not pass in the dependency array, or if using the dependency array, list all the dependencies in it.
My solution:
// Modules configuration (modules that will be used as Jade helpers)
define(function () {
return {
'moment': 'path/to/moment',
'filesize': 'path/to/filesize',
'_': 'path/to/lodash',
'_s': 'path/to/underscore.string'
};
});
The loader:
define(['jade', 'lodash', 'config'], function (Jade, _, Config) {
var deps;
// Dynamic require
require(_.values(Config), function () {
deps = _.object(_.keys(Config), arguments);
// Use deps...
});
});
Sometimes, this error pops up because of the kernel has reached its limit. Try to restart the kernel redo the necessary steps.
i think right now is Firefox 3.6.2, but when internet explorer 9 launched, it will support HTML5
In your test, you are comparing the two TestParent
beans, not the single TestedChild
bean.
Also, Spring proxies your @Configuration
class so that when you call one of the @Bean
annotated methods, it caches the result and always returns the same object on future calls.
See here:
In this instance, your div
elements have been changed from block
level elements to inline
elements. A typical characteristic of inline
elements is that they respect the whitespace in the markup. This explains why a gap of space is generated between the elements. (example)
There are a few solutions that can be used to solve this.
Example 1 - Comment the whitespace out: (example)
<div>text</div><!--
--><div>text</div><!--
--><div>text</div><!--
--><div>text</div><!--
--><div>text</div>
Example 2 - Remove the line breaks: (example)
<div>text</div><div>text</div><div>text</div><div>text</div><div>text</div>
Example 3 - Close part of the tag on the next line (example)
<div>text</div
><div>text</div
><div>text</div
><div>text</div
><div>text</div>
Example 4 - Close the entire tag on the next line: (example)
<div>text
</div><div>text
</div><div>text
</div><div>text
</div><div>text
</div>
font-size
Since the whitespace between the inline
elements is determined by the font-size
, you could simply reset the font-size
to 0
, and thus remove the space between the elements.
Just set font-size: 0
on the parent elements, and then declare a new font-size
for the children elements. This works, as demonstrated here (example)
#parent {
font-size: 0;
}
#child {
font-size: 16px;
}
This method works pretty well, as it doesn't require a change in the markup; however, it doesn't work if the child element's font-size
is declared using em
units. I would therefore recommend removing the whitespace from the markup, or alternatively floating the elements and thus avoiding the space generated by inline
elements.
display: flex
In some cases, you can also set the display
of the parent element to flex
. (example)
This effectively removes the spaces between the elements in supported browsers. Don't forget to add appropriate vendor prefixes for additional support.
.parent {
display: flex;
}
.parent > div {
display: inline-block;
padding: 1em;
border: 2px solid #f00;
}
.parent {_x000D_
display: flex;_x000D_
}_x000D_
.parent > div {_x000D_
display: inline-block;_x000D_
padding: 1em;_x000D_
border: 2px solid #f00;_x000D_
}
_x000D_
<div class="parent">_x000D_
<div>text</div>_x000D_
<div>text</div>_x000D_
<div>text</div>_x000D_
<div>text</div>_x000D_
<div>text</div>_x000D_
</div>
_x000D_
It is incredibly unreliable to use negative margins to remove the space between inline
elements. Please don't use negative margins if there are other, more optimal, solutions.
To add to the accepted answer, I had a similar issue and solved it using a similar approach with the contrived example below. In this case I needed to log some parameters on componentWillUnmount
and as described in the original question I didn't want it to log every time the params changed.
const componentWillUnmount = useRef(false)
// This is componentWillUnmount
useEffect(() => {
return () => {
componentWillUnmount.current = true
}
}, [])
useEffect(() => {
return () => {
// This line only evaluates to true after the componentWillUnmount happens
if (componentWillUnmount.current) {
console.log(params)
}
}
}, [params]) // This dependency guarantees that when the componentWillUnmount fires it will log the latest params
You can insert an image that looks like a button. Then attach a script to the image.
You can insert any image. The image can be edited in the spreadsheet
Image of a Button
Assign a function name to an image:
This should work pretty nicely. It will never grow beyond the initial size. The toList method will give you the entries in the correct chronological order. This was done in groovy - but converting it to java proper should be pretty easy.
static class FixedSizeCircularReference<T> {
T[] entries
FixedSizeCircularReference(int size) {
this.entries = new Object[size] as T[]
this.size = size
}
int cur = 0
int size
void add(T entry) {
entries[cur++] = entry
if (cur >= size) {
cur = 0
}
}
List<T> asList() {
List<T> list = new ArrayList<>()
int oldest = (cur == size - 1) ? 0 : cur
for (int i = 0; i < this.entries.length; i++) {
def e = this.entries[oldest + i < size ? oldest + i : oldest + i - size]
if (e) list.add(e)
}
return list
}
}
FixedSizeCircularReference<String> latestEntries = new FixedSizeCircularReference(100)
latestEntries.add('message 1')
// .....
latestEntries.add('message 1000')
latestEntries.asList() //Returns list of '100' messages
date_format
requires first argument as timestamp
so not the best way to convert a string. Use date_parse
instead.
Also, use %c
for non zero-padded month, %e
for non zero-padded day of the month and %Y
for four digit year.
SELECT date_parse('7/22/2016 6:05:04 PM', '%c/%e/%Y %r')
The reason is that modprobe
looks into /lib/modules/$(uname -r)
for the modules and therefore won't work with local file path. That's one of differences between modprobe
and insmod
.
if($('#user_inp').length > 0 && $('#user_inp').val() != '')
{
$('#user_inp').css({"font-size":"18px"});
$('#user_line').css({"background-color":"#4cae4c","transition":"0.5s","height":"2px"});
$('#username').css({"color":"#4cae4c","transition":"0.5s","font-size":"18px"});
}
You can use the following method in a util class, and use it whenever necessary...
public static List<String> readLinesFromGZ(String filePath) {
List<String> lines = new ArrayList<>();
File file = new File(filePath);
try (GZIPInputStream gzip = new GZIPInputStream(new FileInputStream(file));
BufferedReader br = new BufferedReader(new InputStreamReader(gzip));) {
String line = null;
while ((line = br.readLine()) != null) {
lines.add(line);
}
} catch (FileNotFoundException e) {
e.printStackTrace(System.err);
} catch (IOException e) {
e.printStackTrace(System.err);
}
return lines;
}
For anyone coming here in 2018:
Well, you could erase()
the first character too (note that erase()
modifies the string):
m_VirtualHostName.erase(0, 1);
m_VirtualHostName.erase(m_VirtualHostName.size() - 1);
But in this case, a simpler way is to take a substring:
m_VirtualHostName = m_VirtualHostName.substr(1, m_VirtualHostName.size() - 2);
Be careful to validate that the string actually has at least two characters in it first...
You can easily do it with below code:
Note: The second argument in RegExp is 'g' which is the global search flag. The global search flag makes the RegExp search for a pattern throughout the string, creating an array of all occurrences it can find matching the given pattern. Below code only works if the time is in HH:MM:SS format i.e. 24 hour time format.
var regex = new RegExp(':', 'g'),
timeStr1 = '5:50:55',
timeStr2 = '6:17:05';
if(parseInt(timeStr1.replace(regex, ''), 10) < parseInt(timeStr2.replace(regex, ''), 10)){
console.log('timeStr1 is smaller then timeStr2');
} else {
console.log('timeStr2 is smaller then timeStr1');
}
Here is a function that I use (slightly redacted). It allows input and output parameters. I only have uniqueidentifier and varchar types implemented, but any other types are easy to add. If you use parameterized stored procedures (or just parameterized sql...this code is easily adapted to that), this will make your life a lot easier.
To call the function, you need a connection to the SQL server (say $conn),
$res=exec-storedprocedure -storedProcName 'stp_myProc' -parameters @{Param1="Hello";Param2=50} -outparams @{ID="uniqueidentifier"} $conn
retrieve proc output from returned object
$res.data #dataset containing the datatables returned by selects
$res.outputparams.ID #output parameter ID (uniqueidentifier)
The function:
function exec-storedprocedure($storedProcName,
[hashtable] $parameters=@{},
[hashtable] $outparams=@{},
$conn,[switch]$help){
function put-outputparameters($cmd, $outparams){
foreach($outp in $outparams.Keys){
$cmd.Parameters.Add("@$outp", (get-paramtype $outparams[$outp])).Direction=[System.Data.ParameterDirection]::Output
}
}
function get-outputparameters($cmd,$outparams){
foreach($p in $cmd.Parameters){
if ($p.Direction -eq [System.Data.ParameterDirection]::Output){
$outparams[$p.ParameterName.Replace("@","")]=$p.Value
}
}
}
function get-paramtype($typename,[switch]$help){
switch ($typename){
'uniqueidentifier' {[System.Data.SqlDbType]::UniqueIdentifier}
'int' {[System.Data.SqlDbType]::Int}
'xml' {[System.Data.SqlDbType]::Xml}
'nvarchar' {[System.Data.SqlDbType]::NVarchar}
default {[System.Data.SqlDbType]::Varchar}
}
}
if ($help){
$msg = @"
Execute a sql statement. Parameters are allowed.
Input parameters should be a dictionary of parameter names and values.
Output parameters should be a dictionary of parameter names and types.
Return value will usually be a list of datarows.
Usage: exec-query sql [inputparameters] [outputparameters] [conn] [-help]
"@
Write-Host $msg
return
}
$close=($conn.State -eq [System.Data.ConnectionState]'Closed')
if ($close) {
$conn.Open()
}
$cmd=new-object system.Data.SqlClient.SqlCommand($sql,$conn)
$cmd.CommandType=[System.Data.CommandType]'StoredProcedure'
$cmd.CommandText=$storedProcName
foreach($p in $parameters.Keys){
$cmd.Parameters.AddWithValue("@$p",[string]$parameters[$p]).Direction=
[System.Data.ParameterDirection]::Input
}
put-outputparameters $cmd $outparams
$ds=New-Object system.Data.DataSet
$da=New-Object system.Data.SqlClient.SqlDataAdapter($cmd)
[Void]$da.fill($ds)
if ($close) {
$conn.Close()
}
get-outputparameters $cmd $outparams
return @{data=$ds;outputparams=$outparams}
}
Try this:
<!DOCTYPE html>
<html>
<head>
<title>Convert JSON Data to HTML Table</title>
<style>
th, td, p, input {
font:14px Verdana;
}
tr{
align: right
}
table, th, td
{
border: solid 1px #DDD;
border-collapse: collapse;
padding: 2px 3px;
text-align: center;
}
th {
font-weight:bold;
}
</style>
</head>
<body>
<input type="button" onclick="CreateTableFromJSON()" value="Create Table From JSON" />
<div id="showData"></div>
</body>
<script>
function CreateTableFromJSON() {
var obj = {[{"city":"AMBALA","cStatus":"Y"},
{"city":"ASANKHURD","cStatus":"Y"},
{"city":"ASSANDH","cStatus":"Y"}]}
var table = document.createElement('table');
var tr = table.insertRow(-1);
function iterate(obj,table,tr){
for(var props in obj){
if(obj.hasOwnProperty(props)){
if(typeof obj[props]=='object')
{
var trNext = table.insertRow(-1);
var tabCellHead = trNext.insertCell(-1);
var tabCell = trNext.insertCell(-1);
var table_in = document.createElement('table');
var tr_in;
var th = document.createElement("th");
th.innerHTML = props;
tabCellHead.appendChild(th);
tabCell.appendChild(table_in)
iterate(obj[props],table_in,tr_in);
}
else
{
if(tr === undefined)
{
tr = table.insertRow(-1);
}
var tabCell = tr.insertCell(-1);
console.log(props+' * '+obj[props]);
tabCell.innerHTML = obj[props];
}
}
}
}
iterate(obj,table,tr);
var divContainer = document.getElementById("showData");
divContainer.innerHTML = "";
divContainer.appendChild(table);
}
</script>
</html>
try this following snippet, its working fine.
private void button1_Click(object sender, EventArgs e)
{
try
{
OpenFileDialog openfile1 = new OpenFileDialog();
if (openfile1.ShowDialog() == System.Windows.Forms.DialogResult.OK)
{
this.textBox1.Text = openfile1.FileName;
}
{
string pathconn = "Provider = Microsoft.jet.OLEDB.4.0; Data source=" + textBox1.Text + ";Extended Properties=\"Excel 8.0;HDR= yes;\";";
OleDbConnection conn = new OleDbConnection(pathconn);
OleDbDataAdapter MyDataAdapter = new OleDbDataAdapter("Select * from [" + textBox2.Text + "$]", conn);
DataTable dt = new DataTable();
MyDataAdapter.Fill(dt);
dataGridView1.DataSource = dt;
}
}
catch { }
}
You can take a diff that undoes the changes you want and commit that.
E.g. If you want to undo the changes in the range from..to
, do the following
git diff to..from > foo.diff # get a reverse diff
patch < foo.diff
git commit -a -m "Undid changes from..to".
This should work:
SELECT *
INTO DestinationDB..MyDestinationTable
FROM SourceDB..MySourceTable
It will not copy constraints, defaults or indexes. The table created will not have a clustered index.
Alternatively you could:
INSERT INTO DestinationDB..MyDestinationTable
SELECT * FROM SourceDB..MySourceTable
If your destination table exists and is empty.
Currently there is no better way, however there may be a marginal improvement by moving SaveChanges inside for loop for probably 10 items.
int i = 0;
foreach (Employees item in sequence)
{
t = new Employees ();
t.Text = item.Text;
dataContext.Employees.AddObject(t);
// this will add max 10 items together
if((i % 10) == 0){
dataContext.SaveChanges();
// show some progress to user based on
// value of i
}
i++;
}
dataContext.SaveChanges();
You can adjust 10 to be closer to better performance. It will not greatly improve speed but it will allow you to show some progress to user and make it more user friendly.
Let the command you are trying to pass be
os.system('x')
then you covert it to a statement
t = os.system('x')
now the python will be waiting for the output from the commandline so that it could be assigned to the variable t
.
In your CSS you can set the @page property as shown below.
@media print{@page {size: landscape}}
The @page is part of CSS 2.1 specification however this size
is not as highlighted by the answer to the question Is @Page { size:landscape} obsolete?:
CSS 2.1 no longer specifies the size attribute. The current working draft for CSS3 Paged Media module does specify it (but this is not standard or accepted).
As stated the size option comes from the CSS 3 Draft Specification. In theory it can be set to both a page size and orientation although in my sample the size is omitted.
The support is very mixed with a bug report begin filed in firefox, most browsers do not support it.
It may seem to work in IE7 but this is because IE7 will remember the users last selection of landscape or portrait in print preview (only the browser is re-started).
This article does have some suggested work arounds using JavaScript or ActiveX that send keys to the users browser although it they are not ideal and rely on changing the browsers security settings.
Alternately you could rotate the content rather than the page orientation. This can be done by creating a style and applying it to the body that includes these two lines but this also has draw backs creating many alignment and layout issues.
<style type="text/css" media="print">
.page
{
-webkit-transform: rotate(-90deg);
-moz-transform:rotate(-90deg);
filter:progid:DXImageTransform.Microsoft.BasicImage(rotation=3);
}
</style>
The final alternative I have found is to create a landscape version in a PDF. You can point to so when the user selects print it prints the PDF. However I could not get this to auto print work in IE7.
<link media="print" rel="Alternate" href="print.pdf">
In conclusion in some browsers it is relativity easy using the @page size option however in many browsers there is no sure way and it would depend on your content and environment. This maybe why Google Documents creates a PDF when print is selected and then allows the user to open and print that.
Agrega System.web a las referencias del proyecto.
[Edit]
According to Google Translate, this translates to:
Add System.Web to the project references.
For Glide 4.x.x
use this simple code
Glide
.with(context)
.load(uri)
.apply(
RequestOptions()
.circleCrop())
.into(imageView)
I use this one:
LocationManager.requestLocationUpdates(String provider, long minTime, float minDistance, LocationListener listener)
For example, using a 1s interval:
locationManager.requestLocationUpdates(LocationManager.GPS_PROVIDER,1000,0,this);
the time is in milliseconds, the distance is in meters.
This automatically calls:
public void onLocationChanged(Location location) {
//Code here, location.getAccuracy(), location.getLongitude() etc...
}
I also had these included in the script but didnt actually use them:
public void onStatusChanged(String provider, int status, Bundle extras) {}
public void onProviderEnabled(String provider) {}
public void onProviderDisabled(String provider) {}
In short:
public class GPSClass implements LocationListener {
public void onLocationChanged(Location location) {
// Called when a new location is found by the network location provider.
Log.i("Message: ","Location changed, " + location.getAccuracy() + " , " + location.getLatitude()+ "," + location.getLongitude());
}
public void onStatusChanged(String provider, int status, Bundle extras) {}
public void onProviderEnabled(String provider) {}
public void onProviderDisabled(String provider) {}
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
locationManager = (LocationManager)getSystemService(Context.LOCATION_SERVICE);
locationManager.requestLocationUpdates(LocationManager.GPS_PROVIDER,1000,0,this);
}
}
Example from the guide:
\newcommand{\example}[2][YYY]{Mandatory arg: #2;
Optional arg: #1.}
This defines \example to be a command with two arguments,
referred to as #1 and #2 in the {<definition>}--nothing new so far.
But by adding a second optional argument to this \newcommand
(the [YYY]) the first argument (#1) of the newly defined
command \example is made optional with its default value being YYY.
Thus the usage of \example is either:
\example{BBB}
which prints:
Mandatory arg: BBB; Optional arg: YYY.
or:
\example[XXX]{AAA}
which prints:
Mandatory arg: AAA; Optional arg: XXX.
#father {
position: relative;
}
#son1 {
position: absolute;
top: 0;
}
#son2 {
position: absolute;
bottom: 0;
}
This works because position: absolute
means something like "use top
, right
, bottom
, left
to position yourself in relation to the nearest ancestor who has position: absolute
or position: relative
."
So we make #father
have position: relative
, and the children have position: absolute
, then use top
and bottom
to position the children.
The Problem is the Container that gets the smallest possible size.
Just give a width:
to the Container (in red) and you are done.
width: MediaQuery.of(context).size.width
new Positioned(
bottom: 0.0,
child: new Container(
width: MediaQuery.of(context).size.width,
color: Colors.red,
margin: const EdgeInsets.all(0.0),
child: new Column(
mainAxisAlignment: MainAxisAlignment.center,
children: <Widget>[
new Align(
alignment: Alignment.bottomCenter,
child: new ButtonBar(
alignment: MainAxisAlignment.center,
children: <Widget>[
new OutlineButton(
onPressed: null,
child: new Text(
"Login",
style: new TextStyle(color: Colors.white),
),
),
new RaisedButton(
color: Colors.white,
onPressed: null,
child: new Text(
"Register",
style: new TextStyle(color: Colors.black),
),
)
],
),
)
],
),
),
),
Try this:
string searchValue = textBox3.Text;
int rowIndex = -1;
dataGridView1.SelectionMode = DataGridViewSelectionMode.FullRowSelect;
try
{
foreach (DataGridViewRow row in dataGridView1.Rows)
{
if (row.Cells["peseneli"].Value.ToString().Equals(searchValue))
{
rowIndex = row.Index;
dataGridView1.CurrentCell = dataGridView1.Rows[rowIndex].Cells[0];
dataGridView1.Rows[dataGridView1.CurrentCell.RowIndex].Selected = true;
break;
}
}
}
catch (Exception exc)
{
MessageBox.Show(exc.Message);
}
In Linux command Prompt, I would first stop all postgresql processes that are running by tying this command sudo /etc/init.d/postgresql restart
type the command bg to check if other postgresql processes are still running
then followed by dropdb dbname to drop the database
sudo /etc/init.d/postgresql restart
bg
dropdb dbname
This works for me on linux command prompt
min_element
and max_element
return iterators, not values. So you need *min_element...
and *max_element...
.
MySQL unique and primary keys serve to identify rows. There can be only one Primary key in a table but one or more unique keys. Key is just index.
for more details you can check http://www.geeksww.com/tutorials/database_management_systems/mysql/tips_and_tricks/mysql_primary_key_vs_unique_key_constraints.php
to convert mysql to mssql try this and see http://gathadams.com/2008/02/07/convert-mysql-to-ms-sql-server/
If you have the app store id you are best off using it. Especially if you in the future might change the name of the application.
http://itunes.apple.com/app/id378458261
If you don't have tha app store id you can create an url based on this documentation https://developer.apple.com/library/ios/qa/qa1633/_index.html
+ (NSURL *)appStoreURL
{
static NSURL *appStoreURL;
static dispatch_once_t onceToken;
dispatch_once(&onceToken, ^{
appStoreURL = [self appStoreURLFromBundleName:[[NSBundle mainBundle] objectForInfoDictionaryKey:@"CFBundleName"]];
});
return appStoreURL;
}
+ (NSURL *)appStoreURLFromBundleName:(NSString *)bundleName
{
NSURL *appStoreURL = [NSURL URLWithString:[NSString stringWithFormat:@"itms-apps://itunes.com/app/%@", [self sanitizeAppStoreResourceSpecifier:bundleName]]];
return appStoreURL;
}
+ (NSString *)sanitizeAppStoreResourceSpecifier:(NSString *)resourceSpecifier
{
/*
https://developer.apple.com/library/ios/qa/qa1633/_index.html
To create an App Store Short Link, apply the following rules to your company or app name:
Remove all whitespace
Convert all characters to lower-case
Remove all copyright (©), trademark (™) and registered mark (®) symbols
Replace ampersands ("&") with "and"
Remove most punctuation (See Listing 2 for the set)
Replace accented and other "decorated" characters (ü, å, etc.) with their elemental character (u, a, etc.)
Leave all other characters as-is.
*/
resourceSpecifier = [resourceSpecifier stringByReplacingOccurrencesOfString:@"&" withString:@"and"];
resourceSpecifier = [[NSString alloc] initWithData:[resourceSpecifier dataUsingEncoding:NSASCIIStringEncoding allowLossyConversion:YES] encoding:NSASCIIStringEncoding];
resourceSpecifier = [resourceSpecifier stringByReplacingOccurrencesOfString:@"[!¡\"#$%'()*+,-./:;<=>¿?@\\[\\]\\^_`{|}~\\s\\t\\n]" withString:@"" options:NSRegularExpressionSearch range:NSMakeRange(0, resourceSpecifier.length)];
resourceSpecifier = [resourceSpecifier lowercaseString];
return resourceSpecifier;
}
Passes this test
- (void)testAppStoreURLFromBundleName
{
STAssertEqualObjects([AGApplicationHelper appStoreURLFromBundleName:@"Nuclear™"].absoluteString, @"itms-apps://itunes.com/app/nuclear", nil);
STAssertEqualObjects([AGApplicationHelper appStoreURLFromBundleName:@"Magazine+"].absoluteString, @"itms-apps://itunes.com/app/magazine", nil);
STAssertEqualObjects([AGApplicationHelper appStoreURLFromBundleName:@"Karl & CO"].absoluteString, @"itms-apps://itunes.com/app/karlandco", nil);
STAssertEqualObjects([AGApplicationHelper appStoreURLFromBundleName:@"[Fluppy fuck]"].absoluteString, @"itms-apps://itunes.com/app/fluppyfuck", nil);
STAssertEqualObjects([AGApplicationHelper appStoreURLFromBundleName:@"Pollos Hérmanos"].absoluteString, @"itms-apps://itunes.com/app/polloshermanos", nil);
STAssertEqualObjects([AGApplicationHelper appStoreURLFromBundleName:@"Niños and niñas"].absoluteString, @"itms-apps://itunes.com/app/ninosandninas", nil);
STAssertEqualObjects([AGApplicationHelper appStoreURLFromBundleName:@"Trond, MobizMag"].absoluteString, @"itms-apps://itunes.com/app/trondmobizmag", nil);
STAssertEqualObjects([AGApplicationHelper appStoreURLFromBundleName:@"!__SPECIAL-PLIZES__!"].absoluteString, @"itms-apps://itunes.com/app/specialplizes", nil);
}
I usually sweep out a visual block (<C-V>
), then search and replace the first character with:
:'<,'>s/^/#
(Entering command mode with a visual block selected automatically places '<,'> on the command line) I can then uncomment the block by sweeping out the same visual block and:
:'<,'>s/^#//
If you are on WSL, and following a guide which say, says this:
java -Djava.library.path=./DynamoDBLocal_lib -jar DynamoDBLocal.jar -sharedDb
You actually need to specify the full path, even though you've provided it in the java.library.path
part.
java -Djava.library.path=/mnt/c/dynamodb_local/DynamoDBLocal_lib -jar /mnt/c/dynamodb_local/DynamoDBLocal.jar -sharedDb
More like clean:
@Override
public void onTextChanged(CharSequence s, int start, int before, int count) {
String text = etyEditText.getText();
int textlength = etyEditText.getText().length();
if (text.endsWith("(") ||text.endsWith(")")|| text.endsWith(" ") || text.endsWith("-") )
return;
switch (textlength){
case 1:
etyEditText.setEditText(new StringBuilder(text).insert(text.length() - 1, "(").toString());
etyEditText.setSelection(etyEditText.getText().length());
break;
case 5:
etyEditText.setEditText(new StringBuilder(text).insert(text.length() - 1, ")").toString());
etyEditText.setSelection(etyEditText.getText().length());
break;
case 6:
etyEditText.setEditText(new StringBuilder(text).insert(text.length() - 1, " ").toString());
etyEditText.setSelection(etyEditText.getText().length());
break;
case 10:
etyEditText.setEditText(new StringBuilder(text).insert(text.length() - 1, "-").toString());
etyEditText.setSelection(etyEditText.getText().length());
break;
}
}
If you installed ES using the RPM/DEB packages as provided (as you seem to have), you can adjust this by editing the init script (/etc/init.d/elasticsearch on RHEL/CentOS
). If you have a look in the file you'll see a block with the following:
export ES_HEAP_SIZE
export ES_HEAP_NEWSIZE
export ES_DIRECT_SIZE
export ES_JAVA_OPTS
export JAVA_HOME
To adjust the size, simply change the ES_HEAP_SIZE
line to the following:
export ES_HEAP_SIZE=xM/xG
(where x is the number of MB/GB of RAM that you would like to allocate)
Example:
export ES_HEAP_SIZE=1G
Would allocate 1GB.
Once you have edited the script, save and exit, then restart the service. You can check if it has been correctly set by running the following:
ps aux | grep elasticsearch
And checking for the -Xms and -Xmx flags in the java process that returns:
/usr/bin/java -Xms1G -Xmx1G
Hope this helps :)
There is not a really pythonic way of repeating something. However, it is a better way:
map(lambda index:do_something(), xrange(10))
If you need to pass the index then:
map(lambda index:do_something(index), xrange(10))
Consider that it returns the results as a collection. So, if you need to collect the results it can help.
Conceptually there is no reason why an interface could not define a contract that includes static methods.
For the current C# language implementation, the restriction is due to the allowance of inheritance of a base class and interfaces. If "class SomeBaseClass" implements "interface ISomeInterface" and "class SomeDerivedClass : SomeBaseClass, ISomeInterface" also implements the interface, a static method to implement an interface method would fail compile because a static method cannot have same signature as an instance method (which would be present in base class to implement the interface).
A static class is functionally identical to a singleton and serves the same purpose as a singleton with cleaner syntax. Since a singleton can implement an interface, interface implementations by statics are conceptually valid.
So it simply boils down to the limitation of C# name conflict for instance and static methods of the same name across inheritance. There is no reason why C# could not be "upgraded" to support static method contracts (interfaces).
var str = " \n this is a string \n \n \n"_x000D_
_x000D_
console.log(str);_x000D_
console.log(str.trim());
_x000D_
String.trim()
removes whitespace from the beginning and end of strings... including newlines.
const myString = " \n \n\n Hey! \n I'm a string!!! \n\n";
const trimmedString = myString.trim();
console.log(trimmedString);
// outputs: "Hey! \n I'm a string!!!"
Here's an example fiddle: http://jsfiddle.net/BLs8u/
NOTE! it only trims the beginning and end of the string, not line breaks or whitespace in the middle of the string.
i wouldn't do it this way
I'd use name arrays in the form elements
so i'd get the layout
$_POST['field'][0]['name'] = 'value';
$_POST['field'][0]['price'] = 'value';
$_POST['field'][1]['name'] = 'value';
$_POST['field'][1]['price'] = 'value';
then you could do an array slice to get the amount you need
This ended up being a permissions problem for me. I was trying to access a url I didn't have authorization for with cancan, so the url was switched to users/sign_in
. the redirected url responds to html, not json. The first character in a html response is <
.
For primitive array types, you would have to write a reverse sort algorithm:
Alternatively, you can convert your int[]
to Integer[]
and write a comparator:
public class IntegerComparator implements Comparator<Integer> {
@Override
public int compare(Integer o1, Integer o2) {
return o2.compareTo(o1);
}
}
or use Collections.reverseOrder()
since it only works on non-primitive array types.
and finally,
Integer[] a2 = convertPrimitiveArrayToBoxableTypeArray(a1);
Arrays.sort(a2, new IntegerComparator()); // OR
// Arrays.sort(a2, Collections.reverseOrder());
//Unbox the array to primitive type
a1 = convertBoxableTypeArrayToPrimitiveTypeArray(a2);
You can use this to replace the function if it doesn't exist:
<script>
if (!Array.prototype.indexOf) {
Array.prototype.indexOf = function(elt /*, from*/) {
var len = this.length >>> 0;
var from = Number(arguments[1]) || 0;
from = (from < 0) ? Math.ceil(from) : Math.floor(from);
if (from < 0)
from += len;
for (; from < len; from++) {
if (from in this && this[from] === elt)
return from;
}
return -1;
};
}
</script>
Here is another way to use SQL SELECT
statement in VBA:
sSQL = "SELECT Variable FROM GroupTable WHERE VariableCode = '" & Me.comboBox & "'"
Set rs = CurrentDb.OpenRecordset(sSQL)
On Error GoTo resultsetError
dbValue = rs!Variable
MsgBox dbValue, vbOKOnly, "RS VALUE"
resultsetError:
MsgBox "Error Retrieving value from database",VbOkOnly,"Database Error"
Now you can make use of reduce
function and get the sum.
const object1 = { 'a': 1 , 'b': 2 , 'c':3 }_x000D_
_x000D_
console.log(Object.values(object1).reduce((a, b) => a + b, 0));
_x000D_
Status 422 (RFC 4918, Section 11.2) comes to mind:
The 422 (Unprocessable Entity) status code means the server understands the content type of the request entity (hence a 415(Unsupported Media Type) status code is inappropriate), and the syntax of the request entity is correct (thus a 400 (Bad Request) status code is inappropriate) but was unable to process the contained instructions. For example, this error condition may occur if an XML request body contains well-formed (i.e., syntactically correct), but semantically erroneous, XML instructions.
There is no difference if we look on effect - value will be the same. However there is something more...
Solution 3:
function doSomething() {_x000D_
console.log( theId.value );_x000D_
}
_x000D_
<input id="theId" value="test" onclick="doSomething()" />
_x000D_
if DOM element has id then you can use it in js directly
No method can be invoked on a object which is assigned a NULL
value. It will give a nullPointerException
. Hence, s2.length()
is giving an exception.
in your HTML : <input type="file" id="yourFile">
don't forget to reference your js file or put the following script between <script></script>
in your script :
var fileToRead = document.getElementById("yourFile");
fileToRead.addEventListener("change", function(event) {
var files = fileToRead.files;
if (files.length) {
console.log("Filename: " + files[0].name);
console.log("Type: " + files[0].type);
console.log("Size: " + files[0].size + " bytes");
}
}, false);
Post json data (e.g. with curl)
curl -X POST -H 'Content-Type: application/json' \
'http://<host>:<port>/solr/<core>/update?commit=true' \
-d '{ "delete": {"query":"*:*"} }'
SELECT Collumn1 + ' - ' + Collumn2 AS 'FullName' FROM TableName
try this one :
$('html').keyup(function(e){if(e.keyCode == 8)alert('backspace trapped')})
I experienced this issue when calling my web api endpoint and solved it.
In my case it was an issue in the way the client was encoding the body content. I was not specifying the encoding or media type. Specifying them solved it.
Not specifying encoding type, caused 415 error:
var content = new StringContent(postData);
httpClient.PostAsync(uri, content);
Specifying the encoding and media type, success:
var content = new StringContent(postData, Encoding.UTF8, "application/json");
httpClient.PostAsync(uri, content);
If upload_file
is meant to be the file, use:
files = {'upload_file': open('file.txt','rb')}
values = {'DB': 'photcat', 'OUT': 'csv', 'SHORT': 'short'}
r = requests.post(url, files=files, data=values)
and requests
will send a multi-part form POST body with the upload_file
field set to the contents of the file.txt
file.
The filename will be included in the mime header for the specific field:
>>> import requests
>>> open('file.txt', 'wb') # create an empty demo file
<_io.BufferedWriter name='file.txt'>
>>> files = {'upload_file': open('file.txt', 'rb')}
>>> print(requests.Request('POST', 'http://example.com', files=files).prepare().body.decode('ascii'))
--c226ce13d09842658ffbd31e0563c6bd
Content-Disposition: form-data; name="upload_file"; filename="file.txt"
--c226ce13d09842658ffbd31e0563c6bd--
Note the filename="file.txt"
parameter.
You can use a tuple for the files
mapping value, with between 2 and 4 elements, if you need more control. The first element is the filename, followed by the contents, and an optional content-type header value and an optional mapping of additional headers:
files = {'upload_file': ('foobar.txt', open('file.txt','rb'), 'text/x-spam')}
This sets an alternative filename and content type, leaving out the optional headers.
If you are meaning the whole POST body to be taken from a file (with no other fields specified), then don't use the files
parameter, just post the file directly as data
. You then may want to set a Content-Type
header too, as none will be set otherwise. See Python requests - POST data from a file.
The value of hjust
and vjust
are only defined between 0 and 1:
Source: ggplot2, Hadley Wickham, page 196
(Yes, I know that in most cases you can use it beyond this range, but don't expect it to behave in any specific way. This is outside spec.)
hjust
controls horizontal justification and vjust
controls vertical justification.
An example should make this clear:
td <- expand.grid(
hjust=c(0, 0.5, 1),
vjust=c(0, 0.5, 1),
angle=c(0, 45, 90),
text="text"
)
ggplot(td, aes(x=hjust, y=vjust)) +
geom_point() +
geom_text(aes(label=text, angle=angle, hjust=hjust, vjust=vjust)) +
facet_grid(~angle) +
scale_x_continuous(breaks=c(0, 0.5, 1), expand=c(0, 0.2)) +
scale_y_continuous(breaks=c(0, 0.5, 1), expand=c(0, 0.2))
To understand what happens when you change the hjust
in axis text, you need to understand that the horizontal alignment for axis text is defined in relation not to the x-axis, but to the entire plot (where this includes the y-axis text). (This is, in my view, unfortunate. It would be much more useful to have the alignment relative to the axis.)
DF <- data.frame(x=LETTERS[1:3],y=1:3)
p <- ggplot(DF, aes(x,y)) + geom_point() +
ylab("Very long label for y") +
theme(axis.title.y=element_text(angle=0))
p1 <- p + theme(axis.title.x=element_text(hjust=0)) + xlab("X-axis at hjust=0")
p2 <- p + theme(axis.title.x=element_text(hjust=0.5)) + xlab("X-axis at hjust=0.5")
p3 <- p + theme(axis.title.x=element_text(hjust=1)) + xlab("X-axis at hjust=1")
library(ggExtra)
align.plots(p1, p2, p3)
To explore what happens with vjust
aligment of axis labels:
DF <- data.frame(x=c("a\na","b","cdefghijk","l"),y=1:4)
p <- ggplot(DF, aes(x,y)) + geom_point()
p1 <- p + theme(axis.text.x=element_text(vjust=0, colour="red")) +
xlab("X-axis labels aligned with vjust=0")
p2 <- p + theme(axis.text.x=element_text(vjust=0.5, colour="red")) +
xlab("X-axis labels aligned with vjust=0.5")
p3 <- p + theme(axis.text.x=element_text(vjust=1, colour="red")) +
xlab("X-axis labels aligned with vjust=1")
library(ggExtra)
align.plots(p1, p2, p3)
There is a few benefits of using modules. You can use it only with Apple's framework unless module map is created. @import
is a bit similar to pre-compiling headers files when added to .pch
file which is a way to tune app the compilation process. Additionally you do not have to add libraries in the old way, using @import
is much faster and efficient in fact. If you still look for a nice reference I will highly recommend you reading this article.
Microsoft IE does not support a name as second argument.
window.open('url', 'window name', 'window settings');
Problem is window name
. This will work:
window.open('url', '', 'window settings')
Microsoft only allows the following arguments, If using that argument at all:
Here is a trick though. You can map the Ctrl+Z keys.
This can be achieved by editing the .vimrc
file. Add the following lines in the '.vimrc` file.
nnoremap <c-z> :u<CR> " Avoid using this**
inoremap <c-z> <c-o>:u<CR>
This may not the a preferred way, but can be used.
** Ctrl+Z is used in Linux to suspend the ongoing program/process.
All the answers that I can see here, including the currently "accepted" one, is actually wrong in that they set:
scrollTop = scrollHeight
Whereas the correct approach is to set:
scrollTop = scrollHeight - clientHeight
In other words:
$('#div1').scrollTop($('#div1')[0].scrollHeight - $('#div1')[0].clientHeight);
Or animated:
$("#div1").animate({
scrollTop: $('#div1')[0].scrollHeight - $('#div1')[0].clientHeight
}, 1000);
To identify unlock screen I believe that you can use ID 4624. But then you also need to look at the Logon Type which in this case is 7: http://www.ultimatewindowssecurity.com/securitylog/encyclopedia/event.aspx?eventid=4624
Event ID for Logoff is 4634
also you can try this
date.timezone = <?php date('Y'); ?>
Chrome now has Copy as fetch in version 67:
Copy as fetch
Right-click a network request then select Copy > Copy As Fetch to copy the
fetch()
-equivalent code for that request to your clipboard.
https://developers.google.com/web/updates/2018/04/devtools#fetch
Sample output:
fetch("https://stackoverflow.com/posts/validate-body", {
credentials: "include",
headers: {},
referrer: "https://stackoverflow.com/",
referrerPolicy: "origin",
body:
"body=Chrome+now+has+_Copy+as+fetch_+in+version+67%3A%0A%0A%3E+Copy+as+fetch%0ARight-click+a+network+request+then+select+**Copy+%3E+Copy+As+Fetch**+to+copy+the+%60fetch()%60-equivalent+code+for+that+request+to+your+clipboard.%0A%0A&oldBody=&isQuestion=false",
method: "POST",
mode: "cors"
});
The difference is that Copy as cURL will also include all the request headers (such as Cookie and Accept) and is suitable for replaying the request outside of Chrome. The fetch()
code is suitable for replaying inside of the same browser.
Here's the Xamarin iOS equivalent of drawnonward's answer.
class WebviewDelegate : UIWebViewDelegate {
public override bool ShouldStartLoad (UIWebView webView, NSUrlRequest request, UIWebViewNavigationType navigationType) {
if (navigationType == UIWebViewNavigationType.LinkClicked) {
UIApplication.SharedApplication.OpenUrl (request.Url);
return false;
}
return true;
}
}
Well, I'm sure that you didn't set the models yet, so what dose it migrate now ??
So the solution is setting all variables and set Charfield, Textfield....... and migrate them and it will work.
import java.util.*;
public class Main {
public static void main(String[] args) {
TreeMap<String, Integer> initTree = new TreeMap();
initTree.put("D", 0);
initTree.put("C", -3);
initTree.put("A", 43);
initTree.put("B", 32);
System.out.println("Sorted by keys:");
System.out.println(initTree);
List list = new ArrayList(initTree.entrySet());
Collections.sort(list, new Comparator<Map.Entry<String, Integer>>() {
@Override
public int compare(Map.Entry<String, Integer> e1, Map.Entry<String, Integer> e2) {
return e1.getValue().compareTo(e2.getValue());
}
});
System.out.println("Sorted by values:");
System.out.println(list);
}
}
I tried to "Maven > Reimport" but the only thing that actually fixed it was to close the project, delete the .idea directory, and reopen the project.
I think the most simple way is .iloc[[0, -1]]
.
df = pd.DataFrame({'a':range(1,5), 'b':['a','b','c','d']})
df2 = df.iloc[[0, -1]]
print df2
a b
0 1 a
3 4 d
You can get separate component of a NSDate using NSDateFormatter:
NSDateFormatter *df = [[NSDateFormatter alloc] init];
[df setDateFormat:@"dd"];
myDayString = [df stringFromDate:[NSDate date]];
[df setDateFormat:@"MMM"];
myMonthString = [df stringFromDate:[NSDate date]];
[df setDateFormat:@"yy"];
myYearString = [df stringFromDate:[NSDate date]];
If you wish to get month's number instead of abbreviation, use "MM". If you wish to get integers, use [myDayString intValue];
If this is nullable int field then yes.
update TableName
set FiledName = null
where Id = SomeId
Read this if you are populating your mat-select asyncronously via an http request.
If you are using a service to make an api call to return the mat-select options values, you must set the 'selected value' on your form control as part of the 'complete' section of your service api call subscribe().
For example:
this.customerService.getCustomers().subscribe(
customers => this.customers = customers ,
error => this.errorMessage = error as any,
() => this.customerSelectControl.setValue(this.mySelectedValue));
While the answers with List<T>.ForEach
are very good.
I found String.Join<T>(string separator, IEnumerable<T> values)
method more useful.
Example :
List<string> numbersStrLst = new List<string>
{ "One", "Two", "Three","Four","Five"};
Console.WriteLine(String.Join(", ", numbersStrLst));//Output:"One, Two, Three, Four, Five"
int[] numbersIntAry = new int[] {1, 2, 3, 4, 5};
Console.WriteLine(String.Join("; ", numbersIntAry));//Output:"1; 2; 3; 4; 5"
Remarks :
If separator is null, an empty string (String.Empty
) is used instead. If any member of values is null, an empty string is used instead.
Join(String, IEnumerable<String>)
is a convenience method that lets you concatenate each element in an IEnumerable(Of String) collection without first converting the elements to a string array. It is particularly useful with Language-Integrated Query (LINQ) query expressions.
This should work just fine for the problem, whereas for others, having array values. Use other overloads of this same method, String.Join Method (String, Object[])
Reference: https://msdn.microsoft.com/en-us/library/dd783876(v=vs.110).aspx
Given that you're only converting to int
s to then perform a comparison, I'd just switch the table definition around to using varchar
also:
Create table #myTempTable
(
num varchar(12)
)
insert into #myTempTable (num) values (1),(2),(3),(4),(5)
and remove all of the attempted CONVERT
s from the rest of the query.
SELECT a.name, a.value AS value, COUNT(*) AS pocet
FROM
(SELECT item.name, value.value
FROM mdl_feedback AS feedback
INNER JOIN mdl_feedback_item AS item
ON feedback.id = item.feedback
INNER JOIN mdl_feedback_value AS value
ON item.id = value.item
WHERE item.typ = 'multichoicerated' AND item.feedback IN (43)
) AS a
INNER JOIN #myTempTable
on a.value = #myTempTable.num
GROUP BY a.name, a.value ORDER BY a.name
Flags (or compiler options) are nothing but ordinary command line arguments passed to the compiler executable.
Assuming you are invoking g++ from the command line (terminal):
$ g++ -std=c++11 your_file.cpp -o your_program
or
$ g++ -std=c++0x your_file.cpp -o your_program
if the above doesn't work.
If Foo is the class enclose this method
class Foo{
public ArrayList<Integer> myNumbers() {
//code code code
}
}
then
new Foo().myNumbers();
Just add this to your code Controller
return response()->json(compact('token'))->header("Access-Control-Allow-Origin", "*");
Using MySQL inbuilt function group_concat() will be a good choice for getting the desired result. The syntax will be -
SELECT group_concat(STRINGVALUE)
FROM Jira.customfieldvalue
WHERE CUSTOMFIELD = 12534
AND ISSUE = 19602
Before you execute the above command make sure you increase the size of group_concat_max_len else the the whole output may not fit in that cell.
To set the value of group_concat_max_len, execute the below command-
SET group_concat_max_len = 50000;
You can change the value 50000 accordingly, you increase it to a higher value as required.
it's number_map[int(x)]
, you tried to actually call the map with one argument
If you are using System.Text.Json
then you can use [JsonIgnore]
.
FQ: System.Text.Json.Serialization.JsonIgnoreAttribute
Official Microsoft Docs: JsonIgnoreAttribute
As stated here:
The library is built-in as part of the .NET Core 3.0 shared framework.
For other target frameworks, install the System.Text.Json NuGet package. The package supports:
- .NET Standard 2.0 and later versions
- .NET Framework 4.6.1 and later versions
- .NET Core 2.0, 2.1, and 2.2
What git-revert does is create a commit which undoes changes made in a given commit, creating a commit which is reverse (well, reciprocal) of a given commit. Therefore
git revert <SHA-1>
should and does work.
If you want to rewind back to a specified commit, and you can do this because this part of history was not yet published, you need to use git-reset, not git-revert:
git reset --hard <SHA-1>
(Note that --hard
would make you lose any non-committed changes in the working directory).
By the way, perhaps it is not obvious, but everywhere where documentation says <commit>
or <commit-ish>
(or <object>
), you can put an SHA-1 identifier (full or shortened) of commit.
I modified @kolbyjack code to make it work for
http://website1/service
http://website1/service/
with parameters
location ~ ^/service/?(.*) {
return 301 http://service_url/$1$is_args$args;
}
If ds is the DataSet, you can access the CustomerID column of the first row in the first table with something like:
DataRow dr = ds.Tables[0].Rows[0];
Console.WriteLine(dr["CustomerID"]);
There is a race condition in the accepted answer when 2 processes running under 2 different users trying to initialize the mutex at the same time. After the first process initializes the mutex, if the second process tries to initialize the mutex before the first process sets the access rule to everyone, an unauthorized exception will be thrown by the second process.
See below for corrected answer:
using System.Runtime.InteropServices; //GuidAttribute
using System.Reflection; //Assembly
using System.Threading; //Mutex
using System.Security.AccessControl; //MutexAccessRule
using System.Security.Principal; //SecurityIdentifier
static void Main(string[] args)
{
// get application GUID as defined in AssemblyInfo.cs
string appGuid = ((GuidAttribute)Assembly.GetExecutingAssembly().GetCustomAttributes(typeof(GuidAttribute), false).GetValue(0)).Value.ToString();
// unique id for global mutex - Global prefix means it is global to the machine
string mutexId = string.Format( "Global\\{{{0}}}", appGuid );
bool createdNew;
// edited by Jeremy Wiebe to add example of setting up security for multi-user usage
// edited by 'Marc' to work also on localized systems (don't use just "Everyone")
var allowEveryoneRule = new MutexAccessRule(new SecurityIdentifier(WellKnownSidType.WorldSid, null), MutexRights.FullControl, AccessControlType.Allow);
var securitySettings = new MutexSecurity();
securitySettings.AddAccessRule(allowEveryoneRule);
using (var mutex = new Mutex(false, mutexId, out createdNew, securitySettings))
{
// edited by acidzombie24
var hasHandle = false;
try
{
try
{
// note, you may want to time out here instead of waiting forever
// edited by acidzombie24
// mutex.WaitOne(Timeout.Infinite, false);
hasHandle = mutex.WaitOne(5000, false);
if (hasHandle == false)
throw new TimeoutException("Timeout waiting for exclusive access");
}
catch (AbandonedMutexException)
{
// Log the fact the mutex was abandoned in another process, it will still get aquired
hasHandle = true;
}
// Perform your work here.
}
finally
{
// edited by acidzombie24, added if statemnet
if(hasHandle)
mutex.ReleaseMutex();
}
}
}
I understand that I am too late to reply on this question. But I think I should put this as it seems something different from other solution.
We can concatenate threadname and current timeStamp as file name. But with this there is one issue like some thread name contains special character like "\" which can create problem in creating file name. So we can remove special charater from thread name and then concatenate thread name and time stamp
fileName = threadName(after removing special charater) + currentTimeStamp
I always declare string with string.empty;
You should be able to access your windows system under the /mnt
directory. For example inside of bash, use this to get to your pictures directory:
cd /mnt/c/Users/<ubuntu.username>/Pictures
Hope this helps!
Object-oriented version of z-score algorithm using mordern C+++
template<typename T>
class FindPeaks{
private:
std::vector<T> m_input_signal; // stores input vector
std::vector<T> m_array_peak_positive;
std::vector<T> m_array_peak_negative;
public:
FindPeaks(const std::vector<T>& t_input_signal): m_input_signal{t_input_signal}{ }
void estimate(){
int lag{5};
T threshold{ 5 }; // set a threshold
T influence{ 0.5 }; // value between 0 to 1, 1 is normal influence and 0.5 is half the influence
std::vector<T> filtered_signal(m_input_signal.size(), 0.0); // placeholdered for smooth signal, initialie with all zeros
std::vector<int> signal(m_input_signal.size(), 0); // vector that stores where the negative and positive located
std::vector<T> avg_filtered(m_input_signal.size(), 0.0); // moving averages
std::vector<T> std_filtered(m_input_signal.size(), 0.0); // moving standard deviation
avg_filtered[lag] = findMean(m_input_signal.begin(), m_input_signal.begin() + lag); // pass the iteartor to vector
std_filtered[lag] = findStandardDeviation(m_input_signal.begin(), m_input_signal.begin() + lag);
for (size_t iLag = lag + 1; iLag < m_input_signal.size(); ++iLag) { // start index frm
if (std::abs(m_input_signal[iLag] - avg_filtered[iLag - 1]) > threshold * std_filtered[iLag - 1]) { // check if value is above threhold
if ((m_input_signal[iLag]) > avg_filtered[iLag - 1]) {
signal[iLag] = 1; // assign positive signal
}
else {
signal[iLag] = -1; // assign negative signal
}
filtered_signal[iLag] = influence * m_input_signal[iLag] + (1 - influence) * filtered_signal[iLag - 1]; // exponential smoothing
}
else {
signal[iLag] = 0; // no signal
filtered_signal[iLag] = m_input_signal[iLag];
}
avg_filtered[iLag] = findMean(filtered_signal.begin() + (iLag - lag), filtered_signal.begin() + iLag);
std_filtered[iLag] = findStandardDeviation(filtered_signal.begin() + (iLag - lag), filtered_signal.begin() + iLag);
}
for (size_t iSignal = 0; iSignal < m_input_signal.size(); ++iSignal) {
if (signal[iSignal] == 1) {
m_array_peak_positive.emplace_back(m_input_signal[iSignal]); // store the positive peaks
}
else if (signal[iSignal] == -1) {
m_array_peak_negative.emplace_back(m_input_signal[iSignal]); // store the negative peaks
}
}
printVoltagePeaks(signal, m_input_signal);
}
std::pair< std::vector<T>, std::vector<T> > get_peaks()
{
return std::make_pair(m_array_peak_negative, m_array_peak_negative);
}
};
template<typename T1, typename T2 >
void printVoltagePeaks(std::vector<T1>& m_signal, std::vector<T2>& m_input_signal) {
std::ofstream output_file("./voltage_peak.csv");
std::ostream_iterator<T2> output_iterator_voltage(output_file, ",");
std::ostream_iterator<T1> output_iterator_signal(output_file, ",");
std::copy(m_input_signal.begin(), m_input_signal.end(), output_iterator_voltage);
output_file << "\n";
std::copy(m_signal.begin(), m_signal.end(), output_iterator_signal);
}
template<typename iterator_type>
typename std::iterator_traits<iterator_type>::value_type findMean(iterator_type it, iterator_type end)
{
/* function that receives iterator to*/
typename std::iterator_traits<iterator_type>::value_type sum{ 0.0 };
int counter = 0;
while (it != end) {
sum += *(it++);
counter++;
}
return sum / counter;
}
template<typename iterator_type>
typename std::iterator_traits<iterator_type>::value_type findStandardDeviation(iterator_type it, iterator_type end)
{
auto mean = findMean(it, end);
typename std::iterator_traits<iterator_type>::value_type sum_squared_error{ 0.0 };
int counter{ 0 };
while (it != end) {
sum_squared_error += std::pow((*(it++) - mean), 2);
counter++;
}
auto standard_deviation = std::sqrt(sum_squared_error / (counter - 1));
return standard_deviation;
}
Jon, you have some syntax errors, see below, this worked for me.
<script type="text/javascript">
$(document).ready(function () {
$.validator.addMethod(
"australianDate",
function (value, element) {
// put your own logic here, this is just a (crappy) example
return value.match(/^\d\d?\/\d\d?\/\d\d\d\d$/);
},
"Please enter a date in the format dd/mm/yyyy"
);
$('#testForm').validate({
rules: {
"myDate": {
australianDate: true
}
}
});
});
Use android:fitsSystemWindows="true"
in the root view of your layout (LinearLayout in your case).
And android:fitsSystemWindows
is an
internal attribute to adjust view layout based on system windows such as the status bar. If true, adjusts the padding of this view to leave space for the system windows. Will only take effect if this view is in a non-embedded activity.
Must be a boolean value, either "true" or "false".
This may also be a reference to a resource (in the form "@[package:]type:name") or theme attribute (in the form "?[package:][type:]name") containing a value of this type.
This corresponds to the global attribute resource symbol fitsSystemWindows.
After a lot of searching and trying different methods, I found the solution to the problem at my end: SDK
Manager couldn't find my profile directory. After setting the environment variable ANDROID_SDK_HOME
(I set mine to a newly created folder C:\Android), SDK
manager started no prob.
I know I'm late to the party but I find the zerofill is helpful for boolean representations of TINYINT(1). Null doesn't always mean False, sometimes you don't want it to. By zerofilling a tinyint, you're effectively converting those values to INT and removing any confusion ur application may have upon interaction. Your application can then treat those values in a manner similar to the primitive datatype True = Not(0)
just create a folder
C:\data\db
Run below commands in command prompt
C:\Program Files\MongoDB\Server\3.4\bin>mongod
Open another command prompt
C:\Program Files\MongoDB\Server\3.4\bin>mongo
Here's a way to do it in Python without NumPy. Create a function that returns what you want and use a list comprehension, or the map function.
>>> a = [1, 2, 3, -4, 5]
>>> def zero_if_negative(x):
... if x < 0:
... return 0
... return x
...
>>> [zero_if_negative(x) for x in a]
[1, 2, 3, 0, 5]
>>> map(zero_if_negative, a)
[1, 2, 3, 0, 5]
The reason is that const
for the parameter only applies locally within the function, since it is working on a copy of the data. This means the function signature is really the same anyways. It's probably bad style to do this a lot though.
I personally tend to not use const
except for reference and pointer parameters. For copied objects it doesn't really matter, although it can be safer as it signals intent within the function. It's really a judgement call. I do tend to use const_iterator
though when looping on something and I don't intend on modifying it, so I guess to each his own, as long as const
correctness for reference types is rigorously maintained.
If you want multiple background images but don't want them to overlap, you can use this CSS:
body {
font-size: 13px;
font-family:Century Gothic, Helvetica, sans-serif;
color: #333;
text-align: center;
margin:0px;
padding: 25px;
}
#topshadow {
height: 62px
width:1030px;
margin: -62px
background-image: url(images/top-shadow.png);
}
#pageborders {
width:1030px;
min-height:100%;
margin:auto;
background:url(images/mid-shadow.png);
}
#bottomshadow {
margin:0px;
height:66px;
width:1030px;
background:url(images/bottom-shadow.png);
}
#page {
text-align: left;
margin:62px, 0px, 20px;
background-color: white;
margin:auto;
padding:0px;
width:1000px;
}
with this HTML structure:
<body
<?php body_class(); ?>>
<div id="topshadow">
</div>
<div id="pageborders">
<div id="page">
</div>
</div>
</body>
Either use the generated short name (C:\Progra~1) or surround the path with quotation marks.
If you are a windows user, right click on Start and open Windows Powershell(Run as administartor). Then type
mongod
That's it. Your database will surely get connected!
It's the "null coalescing operator", added in php 7.0. The definition of how it works is:
It returns its first operand if it exists and is not NULL; otherwise it returns its second operand.
So it's actually just isset()
in a handy operator.
Those two are equivalent1:
$foo = $bar ?? 'something';
$foo = isset($bar) ? $bar : 'something';
Documentation: http://php.net/manual/en/language.operators.comparison.php#language.operators.comparison.coalesce
In the list of new PHP7 features: http://php.net/manual/en/migration70.new-features.php#migration70.new-features.null-coalesce-op
And original RFC https://wiki.php.net/rfc/isset_ternary
EDIT: As this answer gets a lot of views, little clarification:
1There is a difference: In case of ??
, the first expression is evaluated only once, as opposed to ? :
, where the expression is first evaluated in the condition section, then the second time in the "answer" section.
If it's a query you run often, you can store it in a file. Then any time you want to run it:
mysql < thefile
(with all the login and database flags of course)
cout
is in std namespace, you shall use std::cout
in your code.
And you shall not add using namespace std;
in your header file, it's bad to mix your code with std namespace, especially don't add it in header file.
You can use the Console API (which made its appearance in Java 6) as follows:
Console cons = System.console();
if(cons != null) {
char c = (char) cons.reader().read(); // Checking for EOF omitted
...
}
If you just need a single line you don't even need to go through the reader object:
String s = cons.readLine();
This may be because you havent set noAuth=true in mongodb.conf
# Turn on/off security. Off is currently the default
noauth = true
#auth = true
After setting this restart the service using
service mongod restart
I don't believe you can do just a string, but if you put the string inside of a <span>
with the correct attributes (size, font-weight, etc); you should then be able to use jQuery to get the width of the span.
<span id='string_span' style='font-weight: bold; font-size: 12'>Here is my string</span>
<script>
$('#string_span').width();
</script>
This code worked perfectly for me to close a modal (i'm using bootstrap 3.3)
$('#myModal').removeClass('in')
I would put this as a comment, but I don't have the rep for it. What Josh Crozier answered is correct, but for IE .cur and .ani are the only supported formats for this. So you should probably have a fallback just in case:
.test {
cursor:url("http://www.javascriptkit.com/dhtmltutors/cursor-hand.gif"), url(foo.cur), auto;
}
in case you use SUSE
sudo yast2 -i ruby-devel
In ES6 you can use Array.prototype.find(predicate, thisArg?)
like so:
array.find(x => x.name === 'string 1')
http://exploringjs.com/es6/ch_arrays.html#_searching-for-array-elements https://developer.mozilla.org/en/docs/Web/JavaScript/Reference/Global_Objects/Array/find
To then replace said object (and use another cool ES6 method fill
) you could do something like:
let obj = array.find(x => x.name === 'string 1');
let index = array.indexOf(obj);
array.fill(obj.name='some new string', index, index++);
It can be done using:-
SELECT COUNT(COLUMN_NAME) 'NO OF COLUMN' FROM INFORMATION_SCHEMA.COLUMNS
WHERE TABLE_NAME = 'Address'
Activity.getResources().getConfiguration().orientation
PageMethod an easier and faster approach for Asp.Net AJAX We can easily improve user experience and performance of web applications by unleashing the power of AJAX. One of the best things which I like in AJAX is PageMethod.
PageMethod is a way through which we can expose server side page's method in java script. This brings so many opportunities we can perform lots of operations without using slow and annoying post backs.
In this post I am showing the basic use of ScriptManager and PageMethod. In this example I am creating a User Registration form, in which user can register against his email address and password. Here is the markup of the page which I am going to develop:
<body>
<form id="form1" runat="server">
<div>
<fieldset style="width: 200px;">
<asp:Label ID="lblEmailAddress" runat="server" Text="Email Address"></asp:Label>
<asp:TextBox ID="txtEmail" runat="server"></asp:TextBox>
<asp:Label ID="lblPassword" runat="server" Text="Password"></asp:Label>
<asp:TextBox ID="txtPassword" runat="server"></asp:TextBox>
</fieldset>
<div>
</div>
<asp:Button ID="btnCreateAccount" runat="server" Text="Signup" />
</div>
</form>
</body>
</html>
To setup page method, first you have to drag a script manager on your page.
<asp:ScriptManager ID="ScriptManager1" runat="server" EnablePageMethods="true">
</asp:ScriptManager>
Also notice that I have changed EnablePageMethods="true"
.
This will tell ScriptManager that I am going to call PageMethods from client side.
Now next step is to create a Server Side function.
Here is the function which I created, this function validates user's input:
[WebMethod]
public static string RegisterUser(string email, string password)
{
string result = "Congratulations!!! your account has been created.";
if (email.Length == 0)//Zero length check
{
result = "Email Address cannot be blank";
}
else if (!email.Contains(".") || !email.Contains("@")) //some other basic checks
{
result = "Not a valid email address";
}
else if (!email.Contains(".") || !email.Contains("@")) //some other basic checks
{
result = "Not a valid email address";
}
else if (password.Length == 0)
{
result = "Password cannot be blank";
}
else if (password.Length < 5)
{
result = "Password cannot be less than 5 chars";
}
return result;
}
To tell script manager that this method is accessible through javascript we need to ensure two things:
First: This method should be 'public static'.
Second: There should be a [WebMethod] tag above method as written in above code.
Now I have created server side function which creates account. Now we have to call it from client side. Here is how we can call that function from client side:
<script type="text/javascript">
function Signup() {
var email = document.getElementById('<%=txtEmail.ClientID %>').value;
var password = document.getElementById('<%=txtPassword.ClientID %>').value;
PageMethods.RegisterUser(email, password, onSucess, onError);
function onSucess(result) {
alert(result);
}
function onError(result) {
alert('Cannot process your request at the moment, please try later.');
}
}
</script>
To call my server side method Register user, ScriptManager generates a proxy function which is available in PageMethods.
My server side function has two paramaters i.e. email and password, after that parameters we have to give two more function names which will be run if method is successfully executed (first parameter i.e. onSucess) or method is failed (second parameter i.e. result).
Now every thing seems ready, and now I have added OnClientClick="Signup();return false;"
on my Signup button. So here complete code of my aspx page :
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head runat="server">
<title></title>
</head>
<body>
<form id="form1" runat="server">
<div>
<asp:ScriptManager ID="ScriptManager1" runat="server" EnablePageMethods="true">
</asp:ScriptManager>
<fieldset style="width: 200px;">
<asp:Label ID="lblEmailAddress" runat="server" Text="Email Address"></asp:Label>
<asp:TextBox ID="txtEmail" runat="server"></asp:TextBox>
<asp:Label ID="lblPassword" runat="server" Text="Password"></asp:Label>
<asp:TextBox ID="txtPassword" runat="server"></asp:TextBox>
</fieldset>
<div>
</div>
<asp:Button ID="btnCreateAccount" runat="server" Text="Signup" OnClientClick="Signup();return false;" />
</div>
</form>
</body>
</html>
<script type="text/javascript">
function Signup() {
var email = document.getElementById('<%=txtEmail.ClientID %>').value;
var password = document.getElementById('<%=txtPassword.ClientID %>').value;
PageMethods.RegisterUser(email, password, onSucess, onError);
function onSucess(result) {
alert(result);
}
function onError(result) {
alert('Cannot process your request at the moment, please try later.');
}
}
</script>
Late, but since I had the same problem I add my solution:
function newFile(data, fileName) {
var json = JSON.stringify(data);
//IE11 support
if (window.navigator && window.navigator.msSaveOrOpenBlob) {
let blob = new Blob([json], {type: "application/json"});
window.navigator.msSaveOrOpenBlob(blob, fileName);
} else {// other browsers
let file = new File([json], fileName, {type: "application/json"});
let exportUrl = URL.createObjectURL(file);
window.location.assign(exportUrl);
URL.revokeObjectURL(exportUrl);
}
}
The LOAD DATA INFILE statement reads rows from a text file into a table at a very high speed.
LOAD DATA INFILE '/tmp/test.txt'
INTO TABLE test
FIELDS TERMINATED BY ','
LINES STARTING BY 'xxx';
If the data file looks like this:
xxx"abc",1
something xxx"def",2
"ghi",3
The resulting rows will be ("abc",1) and ("def",2). The third row in the file is skipped because it does not contain the prefix.
LOAD DATA INFILE 'data.txt'
INTO TABLE tbl_name
FIELDS TERMINATED BY ','
ENCLOSED BY '"'
LINES TERMINATED BY '\r\n'
You can also load data files by using the mysqlimport utility; it operates by sending a LOAD DATA INFILE statement to the server
mysqlimport -u root -ptmppassword --local test employee.txt
test.employee: Records: 3 Deleted: 0 Skipped: 0 Warnings: 0
If c
is a set then you can check whether it's empty by doing: return not c
.
If c
is empty then not c
will be True
.
Otherwise, if c
contains any elements not c
will be False
.
This would also work: hash[hey] = nil
String Objects
can be checked using JSON.stringify()
trick.
var me = new String("me");
var you = new String("me");
var isEquel = JSON.stringify(me) === JSON.stringify(you);
console.log(isEquel);
_x000D_
See this similar question and answer to searching with case insensitivity - SQL server ignore case in a where expression
Try using something like:
SELECT DISTINCT COL_NAME
FROM myTable
WHERE COL_NAME COLLATE SQL_Latin1_General_CP1_CI_AS LIKE '%priceorder%'
/*working only in ipad portrait device*/
@media only screen and (width: 768px) and (height: 1024px) and (orientation:portrait) {
body{
background: red !important;
}
}
/*working only in ipad landscape device*/
@media all and (width: 1024px) and (height: 768px) and (orientation:landscape){
body{
background: green !important;
}
}
In the media query of specific devices, please use '!important' keyword to override the default CSS. Otherwise that does not change your webpage view on that particular devices.
It makes no sense to return values from a callback. Instead, do the "foo()" work you want to do inside your callback.
Asynchronous callbacks are invoked by the browser or by some framework like the Google geocoding library when events happen. There's no place for returned values to go. A callback function can return a value, in other words, but the code that calls the function won't pay attention to the return value.
http://api.jqueryui.com/datepicker/#option-maxDate
$( ".selector" ).datepicker( "option", "maxDate", '+0m +0w' );
Assuming that you're working with a class named MyClass
, the following should work:
MyClass.class.getClassLoader();
Whether or not you can get the on-disk location of the .class file is dependent on the classloader itself. For example, if you're using something like BCEL, a certain class may not even have an on-disk representation.
@Howard Hinnant's answer is both correct and comprehensive. But it might be misunderstood if it's read too quickly, because std::terminate()
(whole process) happens to have the same name as the "terminating" that @Alexander V had in mind (1 thread).
Summary: "terminate 1 thread + forcefully (target thread doesn't cooperate) + pure C++11 = No way."
The Dimensions of my input array were skewed, as my input csv had empty spaces.
StringBuilder result = new StringBuilder();
for (int i = 0; i < input.length(); i++) {
if (i > 0) {
result.append(" ");
}
result.append(input.charAt(i));
}
System.out.println(result.toString());
The DELIMITER statement changes the standard delimiter which is semicolon ( ;) to another. The delimiter is changed from the semicolon( ;) to double-slashes //.
Why do we have to change the delimiter?
Because we want to pass the stored procedure, custom functions etc. to the server as a whole rather than letting mysql tool to interpret each statement at a time.
Make the background image transparent/semi-transparent. If it's a solid coloured background just create a 1px by 1px image in fireworks or whatever and adjust its opacity...
just call "onclick"!
here's an example html:
<div id="c" onclick="alert('hello')">Click me!</div>
<div onclick="document.getElementById('c').onclick()">Fake click the previous link!</div>
I have come to the same problem and fixed the same way as Alex K.
So if "Send Errors To Browser" is not working set also this:
Error Pages -> 500 -> Edit Feature Settings -> "Detailed Errors"
Also note that if the content of the error page sent back is quite short and you're using IE, IE will happily ignore the useful content sent back by the server and show you its own generic error page instead. You can turn this off in IE's options, or use a different browser.
Consider the below sample code snippet which demonstrates how to dismiss a dialog fragment safely:
DialogFragment dialogFragment = new DialogFragment();
/**
* do something
*/
// Now you want to dismiss the dialog fragment
if (dialogFragment.getDialog() != null && dialogFragment.getDialog().isShowing())
{
// Dismiss the dialog
dialogFragment.dismiss();
}
Happy Coding!
By.cssSelector(".ban")
or By.cssSelector(".hot")
or By.cssSelector(".ban.hot")
should all select it unless there is another element that has those classes.
In CSS, .name
means find an element that has a class with name
. .foo.bar.baz
means to find an element that has all of those classes (in the same element).
However, each of those selectors will select only the first element that matches it on the page. If you need something more specific, please post the HTML of the other elements that have those classes.
No, you can't undo, rollback or reverse a commit.
(Note: if you deleted the data directory off the filesystem, do NOT stop the database. The following advice applies to an accidental commit of a DELETE
or similar, not an rm -rf /data/directory
scenario).
If this data was important, STOP YOUR DATABASE NOW and do not restart it. Use pg_ctl stop -m immediate
so that no checkpoint is run on shutdown.
You cannot roll back a transaction once it has commited. You will need to restore the data from backups, or use point-in-time recovery, which must have been set up before the accident happened.
If you didn't have any PITR / WAL archiving set up and don't have backups, you're in real trouble.
Once your database is stopped, you should make a file system level copy of the whole data directory - the folder that contains base
, pg_clog
, etc. Copy all of it to a new location. Do not do anything to the copy in the new location, it is your only hope of recovering your data if you do not have backups. Make another copy on some removable storage if you can, and then unplug that storage from the computer. Remember, you need absolutely every part of the data directory, including pg_xlog
etc. No part is unimportant.
Exactly how to make the copy depends on which operating system you're running. Where the data dir is depends on which OS you're running and how you installed PostgreSQL.
If you stop your DB quickly enough you might have a hope of recovering some data from the tables. That's because PostgreSQL uses multi-version concurrency control (MVCC) to manage concurrent access to its storage. Sometimes it will write new versions of the rows you update to the table, leaving the old ones in place but marked as "deleted". After a while autovaccum comes along and marks the rows as free space, so they can be overwritten by a later INSERT
or UPDATE
. Thus, the old versions of the UPDATE
d rows might still be lying around, present but inaccessible.
Additionally, Pg writes in two phases. First data is written to the write-ahead log (WAL). Only once it's been written to the WAL and hit disk, it's then copied to the "heap" (the main tables), possibly overwriting old data that was there. The WAL content is copied to the main heap by the bgwriter
and by periodic checkpoints. By default checkpoints happen every 5 minutes. If you manage to stop the database before a checkpoint has happened and stopped it by hard-killing it, pulling the plug on the machine, or using pg_ctl
in immediate
mode you might've captured the data from before the checkpoint happened, so your old data is more likely to still be in the heap.
Now that you have made a complete file-system-level copy of the data dir you can start your database back up if you really need to; the data will still be gone, but you've done what you can to give yourself some hope of maybe recovering it. Given the choice I'd probably keep the DB shut down just to be safe.
You may now need to hire an expert in PostgreSQL's innards to assist you in a data recovery attempt. Be prepared to pay a professional for their time, possibly quite a bit of time.
I posted about this on the Pg mailing list, and ?????? ?????? linked to depesz's post on pg_dirtyread, which looks like just what you want, though it doesn't recover TOAST
ed data so it's of limited utility. Give it a try, if you're lucky it might work.
See: pg_dirtyread on GitHub.
I've removed what I'd written in this section as it's obsoleted by that tool.
See also PostgreSQL row storage fundamentals
See my blog entry Preventing PostgreSQL database corruption.
On a semi-related side-note, if you were using two phase commit you could ROLLBACK PREPARED
for a transction that was prepared for commit but not fully commited. That's about the closest you get to rolling back an already-committed transaction, and does not apply to your situation.
Note: this is JQuery. See Sébastien answer for Javascript
$(function() {
var temp="a";
$("#MySelect").val(temp);
});
<select name="MySelect" id="MySelect">
<option value="a">a</option>
<option value="b">b</option>
<option value="c">c</option>
</select>
Advice for R
newcomers like me : beware, the following is a list of a single object :
> mylist <- list (1:10)
> length (mylist)
[1] 1
In such a case you are not looking for the length of the list, but of its first element :
> length (mylist[[1]])
[1] 10
This is a "true" list :
> mylist <- list(1:10, rnorm(25), letters[1:3])
> length (mylist)
[1] 3
Also, it seems that R
considers a data.frame as a list :
> df <- data.frame (matrix(0, ncol = 30, nrow = 2))
> typeof (df)
[1] "list"
In such a case you may be interested in ncol()
and nrow()
rather than length()
:
> ncol (df)
[1] 30
> nrow (df)
[1] 2
Though length()
will also work (but it's a trick when your data.frame has only one column) :
> length (df)
[1] 30
> length (df[[1]])
[1] 2
Use realpath()
in stdlib.h
like this:
char *working_dir_path = realpath(".", NULL);
The scope <scope>provided</scope>
gives you an opportunity to tell that the jar would be available at runtime, so do not bundle it. It does not mean that you do not need it at compile time, hence maven would try to download that.
Now I think, the below maven artifact do not exist at all. I tries searching google, but not able to find. Hence you are getting this issue.
Change groupId
to <groupId>net.sourceforge.ant4x</groupId>
to get the latest jar.
<dependency>
<groupId>net.sourceforge.ant4x</groupId>
<artifactId>ant4x</artifactId>
<version>${net.sourceforge.ant4x-version}</version>
<scope>provided</scope>
</dependency>
Another solution for this problem is:
Where http://localhost/repo is your local repo URL:
<repositories>
<repository>
<id>wmc-central</id>
<url>http://localhost/repo</url>
</repository>
<-- Other repository config ... -->
</repositories>
As Shubham Jain stated, this is working to me: driver.findElement(By.id("invoice_supplier_id")).sendKeys("value"??, "new value");
In windows, my cmd window was already open when I set the GOPATH environment variable. First I had to close the cmd and then reopen for it to become effective.
res.json
forces the argument to JSON. res.send
will take an non-json object or non-json array and send another type. For example:
This will return a JSON number.
res.json(100)
This will return a status code and issue a warning to use sendStatus.
res.send(100)
If your argument is not a JSON object or array (null,undefined,boolean,string), and you want to ensure it is sent as JSON, use res.json
.
\t
in a string marks an escape sequence for a tab character. For a literal \
, use \\
.
you should insert at least one raw in each tables (the ones you want the foreign keys pointing at) then you can insert or update the values of the foreign keys
I am getting similar errors recently because recent JDKs (and browsers, and the Linux TLS stack, etc.) refuse to communicate with some servers in my customer's corporate network. The reason of this is that some servers in this network still have SHA-1 certificates.
Please see: https://www.entrust.com/understanding-sha-1-vulnerabilities-ssl-longer-secure/ https://blog.qualys.com/ssllabs/2014/09/09/sha1-deprecation-what-you-need-to-know
If this would be your current case (recent JDK vs deprecated certificate encription) then your best move is to update your network to the proper encription technology.
In case that you should provide a temporal solution for that, please see another answers to have an idea about how to make your JDK trust or distrust certain encription algorithms:
How to force java server to accept only tls 1.2 and reject tls 1.0 and tls 1.1 connections
Anyway I insist that, in case that I have guessed properly your problem, this is not a good solution to the problem and that your network admin should consider removing these deprecated certificates and get a new one.
The easiest way is start the simulator from the Xcode
, and then on the dock, Ctrl
+ Click
on the icon and select Keep in Dock