You should not make an ajax call, just put the src of the img element as the url of the image.
This would be useful if you use GET instead of POST
<script type="text/javascript" >
$(document).ready( function() {
$('.div_imagetranscrits').html('<img src="get_image_probes_via_ajax.pl?id_project=xxx" />')
} );
</script>
If you want to POST to that image and do it the way you do (trying to parse the contents of the image on the client side, you could try something like this: http://en.wikipedia.org/wiki/Data_URI_scheme
You'll need to encode the data
to base64, then you could put data:[<MIME-type>][;charset=<encoding>][;base64],<data>
into the img src
as example:
<img src="data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAUAAAAFCAYAAACNbyblAAAAHElEQVQI12P4//8/w38GIAXDIBKE0DHxgljNBAAO9TXL0Y4OHwAAAABJRU5ErkJggg==" alt="Red dot img" />
To encode to base64:
The safest way to have a PDF display instead of download seems to be embedding it using an object
or iframe
element. There are also 3rd party solutions like Google's PDF viewer.
See Best Way to Embed PDF in HTML for an overview.
There's also DoPDF, a Java based In-browser PDF viewer. I can't speak to its quality but it looks interesting.
Basically the scope of workspace(s) is divided in two points.
First point (and primary) is the eclipse it self and is related with the settings and metadata configurations (plugin ctr). Each time you create a project, eclipse collects all the configurations and stores them on that workspace and if somehow in the same workspace a conflicting project is present you might loose some functionality or even stability of eclipse it self.
And second (secondary) the point of development strategy one can adopt. Once the primary scope is met (and mastered) and there's need for further adjustments regarding project relations (as libraries, perspectives ctr) then initiate separate workspace(s) could be appropriate based on development habits or possible language/frameworks "behaviors". DLTK for examples is a beast that should be contained in a separate cage. Lots of complains at forums for it stopped working (properly or not at all) and suggested solution was to clean the settings of the equivalent plugin from the current workspace.
Personally, I found myself lean more to language distinction when it comes to separate workspaces which is relevant to known issues that comes with the current state of the plugins are used. Preferably I keep them in the minimum numbers as this is leads to less frustration when the projects are become... plenty and version control is not the only version you keep your projects. Finally, loading speed and performance is an issue that might come up if lots of (unnecessary) plugins are loaded due to presents of irrelevant projects. Bottom line; there is no one solution to every one, no master blue print that solves the issue. It's something that grows with experience, Less is more though!
You can also use the jQuery .siblings()
method:
HTML
<div class="content">
<a href="#">A</a>
<a href="#">B</a>
<a href="#">C</a>
</div>
Javascript
$(".content").on('click', 'a', function(e) {
e.preventDefault();
$(this).siblings().hide('slow');
});
Working demo: http://jsfiddle.net/wTm5f/
One reason why the top answer and others wont work for you is because it is missing a critical line. (note many API manuals leave out this necessity)
request.PreAuthenticate = true;
Using regular expressions - documentation for further reference
import re
text = 'gfgfdAAA1234ZZZuijjk'
m = re.search('AAA(.+?)ZZZ', text)
if m:
found = m.group(1)
# found: 1234
or:
import re
text = 'gfgfdAAA1234ZZZuijjk'
try:
found = re.search('AAA(.+?)ZZZ', text).group(1)
except AttributeError:
# AAA, ZZZ not found in the original string
found = '' # apply your error handling
# found: 1234
getContentResolver()
is method of class android.content.Context
, so to call it you definitely need an instance
of Context ( Activity or Service for example).
<asp:DropDownList ID="DropUserType" ClientIDMode="Static" runat="server">
<asp:ListItem Value="1" Text="aaa"></asp:ListItem>
<asp:ListItem Value="2" Text="bbb"></asp:ListItem>
</asp:DropDownList>
ClientIDMode="Static"
$('#DropUserType').val('1');
First, be sure to read and understand the "How to write Go code" document.
The actual answer depends on the nature of your "custom package".
If it's intended to be of general use, consider employing the so-called "Github code layout". Basically, you make your library a separate go get
-table project.
If your library is for internal use, you could go like this:
To demonstrate:
src/
myproject/
mylib/
mylib.go
...
main.go
Now, in the top-level main.go
, you could import "myproject/mylib"
and it would work OK.
Yes, You can use gcc to compile your asm code. Use -c for compilation like this:
gcc -c file.S -o file.o
This will give object code file named file.o. To invoke linker perform following after above command:
gcc file.o -o file
Chrome developer tools has this functionality. I found this article very helpful and does exactly what you want: https://developers.google.com/chrome-developer-tools/docs/heap-profiling
JQUERY FORMATCURRENCY PLUGIN
http://code.google.com/p/jquery-formatcurrency/
Based on the answer by 'Cassio Borghi'. With this method, there is no need to change the XAML at all.
DataGridTextColumn colNameStatus2 = new DataGridTextColumn();
colNameStatus2.Header = "Status";
colNameStatus2.MinWidth = 100;
colNameStatus2.Binding = new Binding("Status");
grdComputer_Servives.Columns.Add(colNameStatus2);
Style style = new Style(typeof(TextBlock));
Trigger running = new Trigger() { Property = TextBlock.TextProperty, Value = "Running" };
Trigger stopped = new Trigger() { Property = TextBlock.TextProperty, Value = "Stopped" };
stopped.Setters.Add(new Setter() { Property = TextBlock.BackgroundProperty, Value = Brushes.Blue });
running.Setters.Add(new Setter() { Property = TextBlock.BackgroundProperty, Value = Brushes.Green });
style.Triggers.Add(running);
style.Triggers.Add(stopped);
colNameStatus2.ElementStyle = style;
foreach (var Service in computerResult)
{
var RowName = Service;
grdComputer_Servives.Items.Add(RowName);
}
The timeouts()
methods are not implemented in some drivers and are very unreliable in general.
I use a separate thread for the timeouts (passing the url to access as the thread name):
Thread t = new Thread(new Runnable() {
public void run() {
driver.get(Thread.currentThread().getName());
}
}, url);
t.start();
try {
t.join(YOUR_TIMEOUT_HERE_IN_MS);
} catch (InterruptedException e) { // ignore
}
if (t.isAlive()) { // Thread still alive, we need to abort
logger.warning("Timeout on loading page " + url);
t.interrupt();
}
This seems to work most of the time, however it might happen that the driver is really stuck and any subsequent call to driver will be blocked (I experience that with Chrome driver on Windows). Even something as innocuous as a driver.findElements() call could end up being blocked. Unfortunately I have no solutions for blocked drivers.
In case the host
part is omitted it defaults to the wildcard symbol %
, allowing all hosts.
CREATE USER 'service-api';
GRANT ALL PRIVILEGES ON the_db.* TO 'service-api' IDENTIFIED BY 'the_password'
SELECT * FROM mysql.user;
SHOW GRANTS FOR 'service-api'
I think what you are looking for may be
int fsync(int fd);
or
int fdatasync(int fd);
fsync
will flush the file from kernel buffer to the disk. fdatasync
will also do except for the meta data.
selectedIndex is a JavaScript Select Property. For jQuery you can use this code:
jQuery(document).ready(function($) {
$("#dropDownMenuKategorie").change(function() {
// I personally prefer using console.log(), but if you want you can still go with the alert().
console.log($(this).children('option:selected').index());
});
});
div
is a block element, which always takes up its own line.
use the span
tag instead
An Exception is checked, and a RuntimeException is unchecked.
Checked means that the compiler requires that you handle the exception in a catch, or declare your method as throwing it (or one of its superclasses).
Generally, throw a checked exception if the caller of the API is expected to handle the exception, and an unchecked exception if it is something the caller would not normally be able to handle, such as an error with one of the parameters, i.e. a programming mistake.
Personally, I prefer
return "ABCDEFGHIJKLMNOPQRSTUVWXYZ".substring(i, i+1);
which shares the backing char[]
. Alternately, I think the next-most-readable approach is
return Character.toString((char) (i + 'A'));
which doesn't depend on remembering ASCII tables. It doesn't do validation, but if you want to, I'd prefer to write
char c = (char) (i + 'A');
return Character.isUpperCase(c) ? Character.toString(c) : null;
just to make it obvious that you're checking that it's an alphabetic character.
Let me tell you an annoying thing that happened with the N'
prefix - I wasn't able to fix it for two days.
My database collation is SQL_Latin1_General_CP1_CI_AS.
It has a table with a column called MyCol1. It is an Nvarchar
This query fails to match Exact Value That Exists.
SELECT TOP 1 * FROM myTable1 WHERE MyCol1 = 'ESKI'
// 0 result
using prefix N'' fixes it
SELECT TOP 1 * FROM myTable1 WHERE MyCol1 = N'ESKI'
// 1 result - found!!!!
Why? Because latin1_general doesn't have big dotted I that's why it fails I suppose.
foreach($months as $key => $month){
if(strpos($filename,$month)!==false){
echo "<div style ='font:11px/21px Arial,tahoma,sans-serif;color:#ff0000'> Movie List for $key 2013</div>";
}
}
According to the error message, you declared myLoc
as a pointer to an NSInteger (NSInteger *myLoc
) rather than an actual NSInteger (NSInteger myLoc
). It needs to be the latter.
I mostly use following code to scroll down
$('html, body').animate({ scrollTop: $(SELECTOR).offset().top - 50 }, 'slow');
This is what I expected to see when I came to this question:
#!/usr/bin/env python
import pandas as pd
df = pd.DataFrame([(1, 2, 3, 4),
(5, 6, 7, 8),
(9, 0, 1, 2),
(3, 4, 5, 6)],
columns=list('abcd'),
index=['India', 'France', 'England', 'Germany'])
print(df)
gives
a b c d
India 1 2 3 4
France 5 6 7 8
England 9 0 1 2
Germany 3 4 5 6
Walk of shame:
The connection string was pointing at the live database. The error message was completely accurate - the stored procedure was only present in the dev DB. Thanks to all who provided excellent answers, and my apologies for wasting your time.
Make sure your database myAttribute field contains null instead of zero.
Change it to this:
var email = /^[A-Z0-9._%+-]+@[A-Z0-9.-]+\.[A-Z]{2,4}$/i;
This is a regular expression literal that is passed the i
flag which means to be case insensitive.
Keep in mind that email address validation is hard (there is a 4 or 5 page regular expression at the end of Mastering Regular Expressions demonstrating this) and your expression certainly will not capture all valid e-mail addresses.
function millisToMinutesAndSeconds(millis) {
var minutes = Math.floor(millis / 60000);
var seconds = ((millis % 60000) / 1000).toFixed(0);
return minutes + ":" + (seconds < 10 ? '0' : '') + seconds;
}
millisToMinutesAndSeconds(298999); // "4:59"
millisToMinutesAndSeconds(60999); // "1:01"
As User HelpingHand
pointed in the comments the return statement should be
return (seconds == 60 ? (minutes+1) + ":00" : minutes + ":" + (seconds < 10 ? "0" : "") + seconds);
The struct module mimics C structures. It takes more CPU cycles for a processor to read a 16-bit word on an odd address or a 32-bit dword on an address not divisible by 4, so structures add "pad bytes" to make structure members fall on natural boundaries. Consider:
struct { 11
char a; 012345678901
short b; ------------
char c; axbbcxxxdddd
int d;
};
This structure will occupy 12 bytes of memory (x being pad bytes).
Python works similarly (see the struct documentation):
>>> import struct
>>> struct.pack('BHBL',1,2,3,4)
'\x01\x00\x02\x00\x03\x00\x00\x00\x04\x00\x00\x00'
>>> struct.calcsize('BHBL')
12
Compilers usually have a way of eliminating padding. In Python, any of =<>! will eliminate padding:
>>> struct.calcsize('=BHBL')
8
>>> struct.pack('=BHBL',1,2,3,4)
'\x01\x02\x00\x03\x04\x00\x00\x00'
Beware of letting struct handle padding. In C, these structures:
struct A { struct B {
short a; int a;
char b; char b;
}; };
are typically 4 and 8 bytes, respectively. The padding occurs at the end of the structure in case the structures are used in an array. This keeps the 'a' members aligned on correct boundaries for structures later in the array. Python's struct module does not pad at the end:
>>> struct.pack('LB',1,2)
'\x01\x00\x00\x00\x02'
>>> struct.pack('LBLB',1,2,3,4)
'\x01\x00\x00\x00\x02\x00\x00\x00\x03\x00\x00\x00\x04'
Note that datetime.datetime.fromtimestamp(timestamp) and .utcfromtimestamp(timestamp) fail on windows for dates before Jan. 1, 1970 while negative unix timestamps seem to work on unix-based platforms. The docs say this:
See also Issue1646728
If multiple characters are bound inside a single integer/long, as was my issue:
s = '0123456789'
nchars = len(s)
# string to int or long. Type depends on nchars
x = sum(ord(s[byte])<<8*(nchars-byte-1) for byte in range(nchars))
# int or long to string
''.join(chr((x>>8*(nchars-byte-1))&0xFF) for byte in range(nchars))
Yields '0123456789'
and x = 227581098929683594426425L
This is the method I use in a Base Activity to change background. I'm using GradientDrawables generated in code, but could be adapted to suit.
protected void setPageBackground(View root, int type){
if (root!=null) {
Drawable currentBG = root.getBackground();
//add your own logic here to determine the newBG
Drawable newBG = Utils.createGradientDrawable(type);
if (currentBG==null) {
if(Build.VERSION.SDK_INT<Build.VERSION_CODES.JELLY_BEAN){
root.setBackgroundDrawable(newBG);
}else{
root.setBackground(newBG);
}
}else{
TransitionDrawable transitionDrawable = new TransitionDrawable(new Drawable[]{currentBG, newBG});
transitionDrawable.setCrossFadeEnabled(true);
if(Build.VERSION.SDK_INT<Build.VERSION_CODES.JELLY_BEAN){
root.setBackgroundDrawable(transitionDrawable);
}else{
root.setBackground(transitionDrawable);
}
transitionDrawable.startTransition(400);
}
}
}
update: In case anyone runs in to same issue I found, for some reason on Android <4.3 using setCrossFadeEnabled(true)
cause a undesirable white out effect so I had to switch to a solid colour for <4.3 using @Roman Minenok ValueAnimator method noted above.
As a web user, you can export by going to Job Config History, then exporting XML.
I'm in the situation of not having access to the machine Jenkins is running on and wanted to export as a backup.
As for importing the xml as a web user, I'd still like to know.
The msg['To']
needs to be a string:
msg['To'] = "[email protected], [email protected], [email protected]"
While the recipients
in sendmail(sender, recipients, message)
needs to be a list:
sendmail("[email protected]", ["[email protected]", "[email protected]", "[email protected]"], "Howdy")
Ok to answer this . I simply converted my <
and the >
to <
and >
. What was happening previously is i used to set the text <script>alert('1')</script>
but before setting the text in the input text browserconverts <
and >
as <
and the >
. So hence converting them again to <
and >
since browser will understand that as only tags and converts them , than executing the script inside <input type="text" />
If you are looking for non-jQuery solution that gives correct values in virtual pixels on mobile, and you think that plain window.innerHeight
or document.documentElement.clientHeight
can solve your problem, please study this link first: https://tripleodeon.com/assets/2011/12/table.html
The developer has done good testing that reveals the problem: you can get unexpected values for Android/iOS, landscape/portrait, normal/high density displays.
My current answer is not silver bullet yet (//todo), but rather a warning to those who are going to quickly copy-paste any given solution from this thread into production code.
I was looking for page width in virtual pixels on mobile, and I've found the only working code is (unexpectedly!) window.outerWidth
. I will later examine this table for correct solution giving height excluding navigation bar, when I have time.
You can also try this for the double quotes:
JSON.stringify(sDemoString).slice(1, -1);
JSON.stringify('my string with "quotes"').slice(1, -1);
Try using this npm package. This helped me decoding the res structure from my node while using passport-azure-ad
for integrating login using Microsoft account
https://www.npmjs.com/package/circular-json
You can stringify your circular structure by doing:
const str = CircularJSON.stringify(obj);
then you can convert it onto JSON using JSON parser
JSON.parse(str)
In C#, there are at least 4 ways to embed a quote within a string:
Please refer this document for detailed explanation.
Although abs(x - y)
or equivalently abs(y - x)
is preferred, if you are curious about a different answer, the following one-liners also work:
max(x - y, y - x)
-min(x - y, y - x)
max(x, y) - min(x, y)
(x - y) * math.copysign(1, x - y)
, or equivalently (d := x - y) * math.copysign(1, d)
in Python =3.8
functools.reduce(operator.sub, sorted([x, y], reverse=True))
You could do this:
var timer = NSTimer.scheduledTimerWithTimeInterval(0.1, target: self, selector: Selector("someSelector"), userInfo: nil, repeats: false)
func someSelector() {
// Something after a delay
}
let timer = Timer.scheduledTimer(timeInterval: 0.1, target: self, selector: #selector(someSelector), userInfo: nil, repeats: false)
func someSelector() {
// Something after a delay
}
The following command may help you..
EXEC sp_configure 'show advanced options', 1
RECONFIGURE
GO
EXEC sp_configure 'ad hoc distributed queries', 1
RECONFIGURE
GO
If you are logging in to your gmail account from a new application or device, Google might be blocking that device. Try following these steps:
To protect your account, Google might make it harder to sign in to your account if we suspect it isn’t you. For example, Google might ask for additional information besides your username and password if you are traveling or if you try to sign in to your account from a new device.
Go to https://g.co/allowaccess from a different device you have previously used to access your Google account and follow the instructions. Try signing in again from the blocked app.
Right-click and export as HAR, then view it using Jan Odvarko's HAR Viewer
This helps in visualising the already captured HAR logs.
The following worked for me.
This would create the required meta data and other internal eclipse project file system which will display your project's files.
You can also import the project directly as a file system. Follow the above steps if you are unable to import it directly.
I looked at existing answers but I also found that setting the button frame is an important first step.
Here is a function that I use that takes care of this:
const CGFloat kImageTopOffset = -15;
const CGFloat kTextBottomOffset = -25;
+ (void) centerButtonImageTopAndTextBottom: (UIButton*) button
frame: (CGRect) buttonFrame
text: (NSString*) textString
textColor: (UIColor*) textColor
font: (UIFont*) textFont
image: (UIImage*) image
forState: (UIControlState) buttonState
{
button.frame = buttonFrame;
[button setTitleColor: (UIColor*) textColor
forState: (UIControlState) buttonState];
[button setTitle: (NSString*) textString
forState: (UIControlState) buttonState ];
[button.titleLabel setFont: (UIFont*) textFont ];
[button setTitleEdgeInsets: UIEdgeInsetsMake( 0.0, -image.size.width, kTextBottomOffset, 0.0)];
[button setImage: (UIImage*) image
forState: (UIControlState) buttonState ];
[button setImageEdgeInsets: UIEdgeInsetsMake( kImageTopOffset, 0.0, 0.0,- button.titleLabel.bounds.size.width)];
}
1 additional caveat (besides the answer by kanaka/peter): if you use WSS, and the server certificate is not acceptable to the browser, you may not get any browser rendered dialog (like it happens for Web pages). This is because WebSockets is treated as a so-called "subresource", and certificate accept / security exception / whatever dialogs are not rendered for subresources.
I strongly suggest you to read this blog post which appeared on HackerNews recently: How HashMap works in Java
In short, the answer is
What will happen if two different HashMap key objects have same hashcode?
They will be stored in same bucket but no next node of linked list. And keys equals () method will be used to identify correct key value pair in HashMap.
It's actually all in the documentation.
JSONObject and JSONArray can both be used to replace the standard data structure.
To implement a setter simply call a remove(String name)
before a put(String name, Object value)
.
Here's an simple example:
public class BasicDB {
private JSONObject jData = new JSONObject;
public BasicDB(String username, String tagline) {
try {
jData.put("username", username);
jData.put("tagline" , tagline);
} catch (JSONException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}
public String getUsername () {
String ret = null;
try {
ret = jData.getString("username");
} catch (JSONException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
return ret;
}
public void setUsername (String username) {
try {
jData.remove("username");
jData.put("username" , username);
} catch (JSONException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}
public String getTagline () {
String ret = null;
try {
ret = jData.getString("tagline");
} catch (JSONException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
return ret;
}
Where, I solved this problem by adding the visibility attribute to the CSS code, it works on my website
Original code:
#zo2-body-wrap .introText .images:before_x000D_
{_x000D_
background:rgba(136,136,136,0.7);_x000D_
width:100%;_x000D_
height:100%;_x000D_
content:"";_x000D_
position:absolute;_x000D_
top:0;_x000D_
opacity:0;_x000D_
transition:all 0.2s ease-in-out 0s;_x000D_
}
_x000D_
Fixed iOS touch code:
#zo2-body-wrap .introText .images:before_x000D_
{_x000D_
background:rgba(136,136,136,0.7);_x000D_
width:100%;_x000D_
height:100%;_x000D_
content:"";_x000D_
position:absolute;_x000D_
top:0;_x000D_
visibility:hidden;_x000D_
opacity:0;_x000D_
transition:all 0.2s ease-in-out 0s;_x000D_
}
_x000D_
It's much easier than all that...
for X on N bits: Comp = (-X) & (2**N - 1)
def twoComplement(number, nBits):
return (-number) & (2**nBits - 1)
h1 { font-size: 150%; }
h2 { font-size: 120%; }
Tune as needed.
Don't fuss around with .htaccess files when you can use Apache mass virtual hosting.
From the documentation:
#include part of the server name in the filenames VirtualDocumentRoot /www/hosts/%2/docs
In a way it's the reverse of your question: every 'subdomain' is a user. If the user does not exist, you get an 404.
The only drawback is that the environment variable DOCUMENT_ROOT
is not correctly set to the used subdirectory, but the default document_root in de htconfig.
You must have an empty line in your file.
You may want to wrap your parseInt calls in a "try" block:
try {
tall[i++] = Integer.parseInt(s);
}
catch (NumberFormatException ex) {
continue;
}
Or simply check for empty strings before parsing:
if (s.length() == 0)
continue;
Note that by initializing your index variable i
inside the loop, it is always 0. You should move the declaration before the while
loop. (Or make it part of a for
loop.)
Try:
import socket
print ([ip for ip in socket.gethostbyname_ex(socket.gethostname())[2] if not ip.startswith("127.")][:1])
To make multiple checking statements more readable (and avoid nested ifs):
var tmp = 'Test[[email protected]]';
var posStartEmail = undefined;
var posEndEmail = undefined;
var email = undefined;
do {
if (tmp.toLowerCase().substring(0,4) !== 'test') { break; }
posStartEmail = tmp.toLowerCase().substring(4).indexOf('[');
posEndEmail = tmp.toLowerCase().substring(4).indexOf(']');
if (posStartEmail === -1 || posEndEmail === -1) { break; }
email = tmp.substring(posStartEmail+1+4,posEndEmail);
if (email.indexOf('@') === -1) { break; }
// all checks are done - do what you intend to do
alert ('All checks are ok')
break; // the most important break of them all
} while(true);
Just a note:
W3C has no problem with button inside of link tag, so it is just another MS sub-standard.
Answer:
Use surrogate button, unless you want to go for a full image.
Surrogate button can be put into tag (safer, if you use spans, not divs).
It can be styled to look like button, or anything else.
It is versatile - one piece of css code powers all instances - just define CSS once and from that point just copy and paste html instance wherever your code requires it.
Every button can have its own label - great for multi-lingual pages (easier that doing pictures for every language - I think) - also allows to propagate instances all over your script easier.
Adjusts its width to label length - also takes fixed width if it is how you want it.
IE7 is an exception to above - it must have width, or will make this button from edge to edge - alternatively to giving it width, you can float button left
- css for IE7:
a. .width:150px; (make note of dot before property, I usually target IE7 by adding such dot - remove dot and property will be read by all browsers)
b. text-align:center; - if you have fixed width, you have to have this to center text/label
c. cursor:pointer; - all IE must have this to show link pointer correctly - good browsers do not need it
You can go step forward with this code and use CSS3 to style it, instead of using images:
a. radius for round corners (limitation: IE will show them square)
b. gradient to make it "button like" (limitation: opera does not support gradients, so remember to set standard background colour for this browser)
c. use :hover pclass to change button states depending on mouse pointer position etc. - you can apply it to text label only, or whole button
.button_surrogate span { margin:0; display:block; height:25px; text-align:center; cursor:pointer; .width:150px; background:url(left_button_edge.png) left top no-repeat; }
.button_surrogate span span { display:block; padding:0 14px; height:25px; background:url(right_button_edge.png) right top no-repeat; }
.button_surrogate span span span { display:block; overflow:hidden; padding:5px 0 0 0; background:url(button_connector.png) left top repeat-x; }
HTML code below (button instance):
<a href="#">
<span class="button_surrogate">
<span><span><span>YOUR_BUTTON_LABEL</span></span></span>
</span>
</a>
git stash && git stash pop
That's the XOR operator, not the PLUS operator
XOR works bit by bit, without carrying over like PLUS does
1 XOR 1 = 0
1 XOR 0 = 1
0 XOR 0 = 0
0 XOR 1 = 1
The best solution is: from positive to negative or from negative to positive
For negative:
SELECT ABS(a) * -1 AS AbsoluteA, ABS(b) * -1 AS AbsoluteB
FROM YourTable
For positive:
SELECT ABS(a) AS AbsoluteA, ABS(b) AS AbsoluteB
FROM YourTable
It used to be a painful task, but now we can use toUTCString():
Example:
[HttpPost]
public ActionResult Query(DateTime Start, DateTime End)
Put the below into Ajax post request
data: {
Start: new Date().toUTCString(),
End: new Date().toUTCString()
},
Take a look at UnCSS. It helps in creating a CSS file of used CSS.
You could count with sql and retrieve the answer from the resultset like so:
Statment stmt = conn.createStatement(ResultSet.TYPE_SCROLL_INSENSITIVE,
ResultSet.CONCUR_READ_ONLY);
ResultSet ct = stmt.executeQuery("SELECT COUNT(*) FROM [table_name]");
if(ct.next()){
td.setTotalNumRows(ct.getInt(1));
}
Here I'm counting everything but you can easily modify the SQL to count based on a criteria.
This question is vague, but if you want to make the image with Javascript. It is simple.
function loadImages(src) {
if (document.images) {
img1 = new Image();
img1.src = src;
}
loadImages("image.jpg");
The image will be requested but until you show it it will never be displayed. great for pre loading images you expect to be requests but delaying it until the document is loaded.
In bash script, what does #!/bin/bash at the 1st line mean ?
In Linux system, we have shell which interprets our UNIX commands. Now there are a number of shell in Unix system. Among them, there is a shell called bash which is very very common Linux and it has a long history. This is a by default shell in Linux.
When you write a script (collection of unix commands and so on) you have a option to specify which shell it can be used. Generally you can specify which shell it wold be by using Shebang(Yes that's what it's name).
So if you #!/bin/bash in the top of your scripts then you are telling your system to use bash as a default shell.
Now coming to your second question :Is there a difference between #!/bin/bash and #!/bin/sh ?
The answer is Yes. When you tell #!/bin/bash then you are telling your environment/ os to use bash as a command interpreter. This is hard coded thing.
Every system has its own shell which the system will use to execute its own system scripts. This system shell can be vary from OS to OS(most of the time it will be bash. Ubuntu recently using dash as default system shell). When you specify #!/bin/sh then system will use it's internal system shell to interpreting your shell scripts.
Visit this link for further information where I have explained this topic.
Hope this will eliminate your confusions...good luck.
Since you cannot have two methods with the same name and signature you have to use the ActionName
attribute:
[HttpGet]
public ActionResult Index()
{
// your code
return View();
}
[HttpPost]
[ActionName("Index")]
public ActionResult IndexPost()
{
// your code
return View();
}
Also see "How a Method Becomes An Action"
The difference come in relational algebra where project affects columns and select affect rows. However in query syntax, select is the word. There is no such query as project. Assuming there is a table named users with hundreds of thousands of records (rows) and the table has 6 fields (userID, Fname,Lname,age,pword,salary). Lets say we want to restrict access to sensitive data (userID,pword and salary) and also restrict amount of data to be accessed. In mysql maria DB we create a view as follows ( Create view user1 as select Fname,Lname, age from users limit 100;) from our view we issue (select Fname from users1;) . This query is both a select and a project
Since Python 3.9 you can use the merge operator |
to merge two dictionaries. The dict on the right takes precedence:
new_dict = old_dict | { key: val }
For example:
new_dict = { 'a': 1, 'b': 2 } | { 'b': 42 }
print(new_dict} # {'a': 1, 'b': 42}
Note: this creates a new dictionary with the updated values.
When you first instantiate the $objPHPExcel, it already has a single sheet (sheet 0); you're then adding a new sheet (which will become sheet 1), but setting active sheet to sheet $i (when $i is 0)... so you're renaming and populating the original worksheet created when you instantiated $objPHPExcel rather than the one you've just added... this is your title "0".
You're also using the createSheet() method, which both creates a new worksheet and adds it to the workbook... but you're also adding it again yourself which is effectively adding the sheet in two position.
So first iteration, you already have sheet0, add a new sheet at both indexes 1 and 2, and edit/title sheet 0. Second iteration, you add a new sheet at both indexes 3 and 4, and edit/title sheet 1, but because you have the same sheet at indexes 1 and 2 this effectively writes to the sheet at index 2. Third iteration, you add a new sheet at indexes 5 and 6, and edit/title sheet 2, overwriting your earlier editing/titleing of sheet 1 which acted against sheet 2 instead.... and so on
If you plan on integrating app functionality with a website, I'd highly recommend the GWT + PhoneGap model:
http://blog.daniel-kurka.de/2012/02/mgwt-and-phonegap-talk-at-webmontag-in.html http://turbomanage.wordpress.com/2010/09/24/gwt-phonegap-native-mobile-apps-quickly/
Here's my two cents from my own experience: We use the same Java POJOs for our Hibernate database, our REST API, our website, and our iPhone app. The workflow is simple and beautiful:
Database ---1---> REST API ---2---> iPhone App / Website
There is another benefit to this approach as well - any Java code that can be compiled with GWT and any JavaScript library become available for use in your iPhone app.
<div class="container">
<div class="btn-block pull-right">
<a href="#" class="btn btn-primary pull-right">Search</a>
<a href="#" class="btn btn-primary pull-right">Apple</a>
<a href="#" class="btn btn-primary pull-right">Sony</a>
</div>
</div>
You can define the label for each activity in your manifest file.
A normal definition of a activity looks like this:
<activity
android:name=".ui.myactivity"
android:label="@string/Title Text" />
Where title text should be replaced by the id of a string resource for this activity.
You can also set the title text from code if you want to set it dynamically.
setTitle(address.getCity());
with this line the title is set to the city of a specific adress in the oncreate method of my activity.
For example, say you were creating a web application to list and display recipes. You might want your customers to be able to sort the list, display features of the recipes, and so on before they choose the recipe to open. In order to do this, you need to associate things like cooking time, primary ingredient, meal position, and so on right inside the list elements for the recipes.
<li><a href="recipe1.html">Borscht</a></li>
<li><a href="recipe2.html">Chocolate Mousse</a></li>
<li><a href="recipe3.html">Almond Radiccio Salad</a></li>
<li><a href="recipe4.html">Deviled Eggs</a></li>
In order to get that information into the page, you could do many different things. You could add comments to each LI element, you could add rel attributes to the list items, you could place all the recipes in separate folders based on time, meal, and ingredient (i.e. ). The solution that most developers took was to use class attributes to store information about the current element. This has several advantages:
But there are some major drawbacks to this method:
All the other methods I suggested had these problems as well as others. But since it was the only way to quickly and easily include data, that’s what we did. HTML5 Data Attributes to the Rescue
HTML5 added a new type of attribute to any element—the custom data element (data-*). These are custom (denoted by the *) attributes that you can add to your HTML elements to define any type of data you want. They consist of two parts:
Attribute Name This is the name of the attribute. It must be at least one lowercase character and have the prefix data-. For example: data-main-ingredient, data-cooking-time, data-meal. This is the name of your data.
Attribute Vaule Like any other HTML attribute, you include the data itself in quotes separated by an equal sign. This data can be any string that is valid on a web page. For example: data-main-ingredient="chocolate".
You can then apply these data attributes to any HTML element you want. For example, you could define the information in the example list above:
<li data-main-ingredient="beets" data-cooking-time="1 hour" data-meal="dinner"><a href="recipe1.html">Borscht</a></li>
<li data-main-ingredient="chocolate" data-cooking-time="30 minutes" data-meal="dessert"><a href="recipe2.html">Chocolate Mousse</a></li>
<li data-main-ingredient="radiccio" data-cooking-time="20 minutes" data-meal="dinner"><a href="recipe1.html">Almond Radiccio Salad</a></li>
<li data-main-ingredient="eggs" data-cooking-time="15 minutes" data-meal="appetizer"><a href="recipe1.html">Deviled Eggs</a></li>
Once you have that information in your HTML, you will be able to access it with JavaScript and manipulate the page based on that data.
Try to dump to a delimited file.
mysqldump -u [username] -p -t -T/path/to/directory [database] --fields-enclosed-by=\" --fields-terminated-by=,
Sum it up. It's called boolean algebra for a reason:
0 x 0 = 0
1 x 0 = 0
1 x 1 = 1
0 + 0 = 0
1 + 0 = 1
1 + 1 = 0 (+ carry)
If you look at the truth tables there, you can see that multiplication is boolean and, and simply addition is xor.
To answer your question:
return (a + b + c) >= 2
For .html
page
<select>
<option value="" selected disabled>Please select</option>
<option value="">A</option>
<option value="">B</option>
<option value="">C</option>
</select>
for .jsp
or any other servlet page.
<select>
<option value="" selected="true" disabled="true">Please select</option>
<option value="">A</option>
<option value="">B</option>
<option value="">C</option>
</select>
All double quotes inside double quotes which suround the string must be changed doubled. As example I had one of json file strings : "delivery": "Standard", In Vba Editor I changed it into """delivery"": ""Standard""," and everythig works correctly. If you have to insert a lot of similar strings, my proposal first, insert them all between "" , then with VBA editor replace " inside into "". If you will do mistake, VBA editor shows this line in red and you will correct this error.
http://api.instagram.com/oembed?url=http://instagram.com/p/Y7GF-5vftL/
Render as json object and you can easily extract media id from it ---
For instance, in PHP
$api = file_get_contents("http://api.instagram.com/oembed?url=http://instagram.com/p/Y7??GF-5vftL/");
$apiObj = json_decode($api,true);
$media_id = $apiObj['media_id'];
For instance, in JS
$.ajax({
type: 'GET',
url: 'http://api.instagram.com/oembed?callback=&url=http://instagram.com/p/Y7GF-5vftL??/',
cache: false,
dataType: 'jsonp',
success: function(data) {
try{
var media_id = data[0].media_id;
}catch(err){}
}
});
for those who want some official document to confirm the behavior
Variables in make can come from the environment in which make is run. Every environment variable that make sees when it starts up is transformed into a make variable with the same name and value. However, an explicit assignment in the makefile, or with a command argument, overrides the environment. (If the ‘-e’ flag is specified, then values from the environment override assignments in the makefile.
https://www.gnu.org/software/make/manual/html_node/Environment.html
<!-- xaml code-->
<Grid>
<ComboBox Name="cmbData" SelectedItem="{Binding SelectedstudentInfo, Mode=OneWayToSource}" HorizontalAlignment="Left" Margin="225,150,0,0" VerticalAlignment="Top" Width="120" DisplayMemberPath="name" SelectedValuePath="id" SelectedIndex="0" />
<Button VerticalAlignment="Center" Margin="0,0,150,0" Height="40" Width="70" Click="Button_Click">OK</Button>
</Grid>
//student Class
public class Student
{
public int Id { set; get; }
public string name { set; get; }
}
//set 2 properties in MainWindow.xaml.cs Class
public ObservableCollection<Student> studentInfo { set; get; }
public Student SelectedstudentInfo { set; get; }
//MainWindow.xaml.cs Constructor
public MainWindow()
{
InitializeComponent();
bindCombo();
this.DataContext = this;
cmbData.ItemsSource = studentInfo;
}
//method to bind cobobox or you can fetch data from database in MainWindow.xaml.cs
public void bindCombo()
{
ObservableCollection<Student> studentList = new ObservableCollection<Student>();
studentList.Add(new Student { Id=0 ,name="==Select=="});
studentList.Add(new Student { Id = 1, name = "zoyeb" });
studentList.Add(new Student { Id = 2, name = "siddiq" });
studentList.Add(new Student { Id = 3, name = "James" });
studentInfo=studentList;
}
//button click to get selected student MainWindow.xaml.cs
private void Button_Click(object sender, RoutedEventArgs e)
{
Student student = SelectedstudentInfo;
if(student.Id ==0)
{
MessageBox.Show("select name from dropdown");
}
else
{
MessageBox.Show("Name :"+student.name + "Id :"+student.Id);
}
}
Here's a generator that does what you requested. In this case, using rstrip is sufficient and slightly faster than strip.
lines = (line.rstrip('\n') for line in open(filename))
However, you'll most likely want to use this to get rid of trailing whitespaces too.
lines = (line.rstrip() for line in open(filename))
http_get
should do the trick. The advantages of http_get
over file_get_contents
include the ability to view HTTP headers, access request details, and control the connection timeout.
$response = http_get("http://www.example.com/file.xml");
I've had the same issue when some ASP.NET installation was corrupted. In that case they suggest running aspnet_regiis -i -enable
A more elegant and simple solution is to use
git stash
It will return to the most resent local version of the branch and also save your changes in stash, so if you like to undo this action do:
git stash apply
For the date part:(month is 0-indexed while days are 1-indexed)
var date = new Date('2014-8-20');
console.log((date.getMonth()+1) + '/' + date.getDate() + '/' + date.getFullYear());
for the time you'll want to create a function to test different situations and convert.
Based up the OP's original request to be able to called a stored proc like this...
using (Entities context = new Entities())
{
context.MyStoreadProcedure(Parameters);
}
Mindless passenger has a project that allows you to call a stored proc from entity frame work like this....
using (testentities te = new testentities())
{
//-------------------------------------------------------------
// Simple stored proc
//-------------------------------------------------------------
var parms1 = new testone() { inparm = "abcd" };
var results1 = te.CallStoredProc<testone>(te.testoneproc, parms1);
var r1 = results1.ToList<TestOneResultSet>();
}
... and I am working on a stored procedure framework (here) which you can call like in one of my test methods shown below...
[TestClass]
public class TenantDataBasedTests : BaseIntegrationTest
{
[TestMethod]
public void GetTenantForName_ReturnsOneRecord()
{
// ARRANGE
const int expectedCount = 1;
const string expectedName = "Me";
// Build the paraemeters object
var parameters = new GetTenantForTenantNameParameters
{
TenantName = expectedName
};
// get an instance of the stored procedure passing the parameters
var procedure = new GetTenantForTenantNameProcedure(parameters);
// Initialise the procedure name and schema from procedure attributes
procedure.InitializeFromAttributes();
// Add some tenants to context so we have something for the procedure to return!
AddTenentsToContext(Context);
// ACT
// Get the results by calling the stored procedure from the context extention method
var results = Context.ExecuteStoredProcedure(procedure);
// ASSERT
Assert.AreEqual(expectedCount, results.Count);
}
}
internal class GetTenantForTenantNameParameters
{
[Name("TenantName")]
[Size(100)]
[ParameterDbType(SqlDbType.VarChar)]
public string TenantName { get; set; }
}
[Schema("app")]
[Name("Tenant_GetForTenantName")]
internal class GetTenantForTenantNameProcedure
: StoredProcedureBase<TenantResultRow, GetTenantForTenantNameParameters>
{
public GetTenantForTenantNameProcedure(
GetTenantForTenantNameParameters parameters)
: base(parameters)
{
}
}
If either of those two approaches are any good?
In order to set the value of integer variable we simply assign the value to it.
eg g1val = 0
where as set keyword is used to assign value to object.
Sub test()
Dim g1val, g2val As Integer
g1val = 0
g2val = 0
For i = 3 To 18
If g1val > Cells(33, i).Value Then
g1val = g1val
Else
g1val = Cells(33, i).Value
End If
Next i
For j = 32 To 57
If g2val > Cells(31, j).Value Then
g2val = g2val
Else
g2val = Cells(31, j).Value
End If
Next j
End Sub
A little bit late, but all the answers were specific to linux.
If you need also unix, then you need this:
char * getExecPath (char * path,size_t dest_len, char * argv0)
{
char * baseName = NULL;
char * systemPath = NULL;
char * candidateDir = NULL;
/* the easiest case: we are in linux */
size_t buff_len;
if (buff_len = readlink ("/proc/self/exe", path, dest_len - 1) != -1)
{
path [buff_len] = '\0';
dirname (path);
strcat (path, "/");
return path;
}
/* Ups... not in linux, no guarantee */
/* check if we have something like execve("foobar", NULL, NULL) */
if (argv0 == NULL)
{
/* we surrender and give current path instead */
if (getcwd (path, dest_len) == NULL) return NULL;
strcat (path, "/");
return path;
}
/* argv[0] */
/* if dest_len < PATH_MAX may cause buffer overflow */
if ((realpath (argv0, path)) && (!access (path, F_OK)))
{
dirname (path);
strcat (path, "/");
return path;
}
/* Current path */
baseName = basename (argv0);
if (getcwd (path, dest_len - strlen (baseName) - 1) == NULL)
return NULL;
strcat (path, "/");
strcat (path, baseName);
if (access (path, F_OK) == 0)
{
dirname (path);
strcat (path, "/");
return path;
}
/* Try the PATH. */
systemPath = getenv ("PATH");
if (systemPath != NULL)
{
dest_len--;
systemPath = strdup (systemPath);
for (candidateDir = strtok (systemPath, ":"); candidateDir != NULL; candidateDir = strtok (NULL, ":"))
{
strncpy (path, candidateDir, dest_len);
strncat (path, "/", dest_len);
strncat (path, baseName, dest_len);
if (access(path, F_OK) == 0)
{
free (systemPath);
dirname (path);
strcat (path, "/");
return path;
}
}
free(systemPath);
dest_len++;
}
/* again someone has use execve: we dont knowe the executable name; we surrender and give instead current path */
if (getcwd (path, dest_len - 1) == NULL) return NULL;
strcat (path, "/");
return path;
}
EDITED: Fixed the bug reported by Mark lakata.
I've tried all answers above. For me works only removal and adding the reference again described in the following steps:
Not sure what you are using, but if you are using ASP.Net you can do the following which works like a charm:
<link href="@Url.Content("~/Content/Site.css")[email protected]" rel="stylesheet" />
Basically it will automatically append the Date and Time to the end of the file each time it is ran, meaning since the file name is technically different, you will never have to worry about it getting cached again.
HostListener should be the proper way to bind event into your component:
@Component({
selector: 'your-element'
})
export class YourElement {
@HostListener('click', ['$event']) onClick(event) {
console.log('component is clicked');
console.log(event);
}
}
for verilog just do
parameter ROWBITS = 4;
reg [ROWBITS-1:0] temp;
always @(posedge sysclk) begin
temp <= {ROWBITS{1'b0}}; // fill with 0
end
Why does C# have both 'ref' and 'out'?
The caller of a method which takes an out parameter is not required to assign to the variable passed as the out parameter prior to the call; however, the callee is required to assign to the out parameter before returning.
In contrast ref parameters are considered initially assigned by the caller. As such, the callee is not required to assign to the ref parameter before use. Ref parameters are passed both into and out of a method.
So, out
means out, while ref
is for in and out.
These correspond closely to the [out]
and [in,out]
parameters of COM interfaces, the advantages of out
parameters being that callers need not pass a pre-allocated object in cases where it is not needed by the method being called - this avoids both the cost of allocation, and any cost that might be associated with marshaling (more likely with COM, but not uncommon in .NET).
Use btoa("yourstring")
more info: https://developer.mozilla.org/en/docs/Web/API/WindowBase64/Base64_encoding_and_decoding
TypeScript is a superset of Javascript, it can use existing Javascript libraries and web APIs
Tried the cross, works nicely, but takes slightly longer. Adjusted line columns to have max and added group which kept speed and dropped the extra record.
Here's the adjusted query:
SELECT Orders.OrderNumber, max(LineItems.Quantity), max(LineItems.Description)
FROM Orders
INNER JOIN LineItems
ON Orders.OrderID = LineItems.OrderID
Group by Orders.OrderNumber
OMG!!! YES, WE CAN DO THAT!!! I was going to kill myself after severe 24 hours of investigating and discovering... But I've found "fresh" solution!
// "cheat" with Java reflection to gain access to TelephonyManager's
// ITelephony getter
Class c = Class.forName(tm.getClass().getName());
Method m = c.getDeclaredMethod("getITelephony");
m.setAccessible(true);
telephonyService = (ITelephony)m.invoke(tm);
all all all of hundreds of people who wants to develop their call-control software visit this start point
there is a project. and there are important comments (and credits)
briefly: copy aidl file, add permissions to manifest, copy-paste source for telephony management )))
Some more info for you. AT commands you can send only if you are rooted. Than you can kill system process and send commands but you will need a reboot to allow your phone to receive and send calls =)))
I'm very hapy =) Now my Shake2MuteCall will get an update !
Probably the simplest way is to use curl
for this, there is no need to install any additional packages and it can be configured directly in a request.
Here is an example using gmail smtp server:
curl --url 'smtps://smtp.gmail.com:465' --ssl-reqd \
--mail-from '[email protected]' \
--mail-rcpt '[email protected]' \
--user '[email protected]:YourPassword' \
-T <(echo -e 'From: [email protected]\nTo: [email protected]\nSubject: Curl Test\n\nHello')
One possible workaround would be using a "frame-breaker" script as described here
You just need to alter the "if" statement to check for your allowed domains.
if (self === top) {
var antiClickjack = document.getElementById("antiClickjack");
antiClickjack.parentNode.removeChild(antiClickjack);
} else {
//your domain check goes here
if(top.location.host != "allowed.domain1.com" && top.location.host == "allowed.domain2.com")
top.location = self.location;
}
This workaround would be safe, I think. because with javascript not enabled you will have no security concern about a malicious website framing your page.
The best way I found is to use another class. You can create an object and then use it on other objects.
class staticFlag:
def __init__(self):
self.__success = False
def isSuccess(self):
return self.__success
def succeed(self):
self.__success = True
class tryIt:
def __init__(self, staticFlag):
self.isSuccess = staticFlag.isSuccess
self.succeed = staticFlag.succeed
tryArr = []
flag = staticFlag()
for i in range(10):
tryArr.append(tryIt(flag))
if i == 5:
tryArr[i].succeed()
print tryArr[i].isSuccess()
With the example above, I made a class named staticFlag
.
This class should present the static var __success
(Private Static Var).
tryIt
class represented the regular class we need to use.
Now I made an object for one flag (staticFlag
). This flag will be sent as reference to all the regular objects.
All these objects are being added to the list tryArr
.
This Script Results:
False
False
False
False
False
True
True
True
True
True
There are already useful answers to this question above, however there is one more possibility which I don't see being addressed here.
We should consider that the java is installed correctly (that's why eclipse could have been launched in the first place), and the JDK is also added correctly to the eclipse. So the issue might be for some reason (e.g. migration of eclipse to another OS) the path for javadoc is not right which you can easily check and modify in the javadoc wizard page. Here is detailed instructions:
Project->Generate Javadoc...
javadoc command
path is correct as illustrated in below screenshot:Just Additional Info which took me long time to find.what if you were using the field name and not id for identifying the form field. You do it like this:
For radio button:
var inp= $('input:radio[name=PatientPreviouslyReceivedDrug]:checked').val();
For textbox:
var txt=$('input:text[name=DrugDurationLength]').val();
<div id="test">
<span>1</span>
<span>2</span>
<span>3</span>
<span>4</span>
</div>
<div id="test2"></div>
<script type="text/javascript">
var getDiv = document.getElementById('test');
var getSpan = getDiv.getElementsByTagName('span');???
var divDump = document.getElementById('test2');
for (var i=0; i<getSpan.length; i++) {
divDump.innerHTML = divDump.innerHTML + ' ' + getSpan[i].innerHTML;
}
</script>
?
given you have a div element you need to scroll inside, try this piece of code
document.querySelector('div').scroll(x,y)
this works with me inside a div with a scroll, this should work with you in case you pointed the mouse over this element and then tried to scroll down or up. If it manually works, it should work too
from pandas.io import sql
from sqlalchemy import create_engine
engine = create_engine("mysql+pymysql://{user}:{pw}@localhost/{db}"
.format(user="root",
pw="your_password",
db="pandas"))
df.to_sql(con=engine, name='table_name', if_exists='replace')
I had the Same problem when connecting to a Socket and I came up with the below solution ,It works Fine for me. `
private bool CheckConnectivityForProxyHost(string hostName, int port)
{
if (string.IsNullOrEmpty(hostName))
return false;
bool isUp = false;
Socket testSocket = null;
try
{
testSocket = new Socket(AddressFamily.InterNetwork, SocketType.Stream, ProtocolType.Tcp);
IPAddress ip = null;
if (testSocket != null && NetworkingCollaboratorBase.GetResolvedConnecionIPAddress(hostName, out ip))//Use a method to resolve your IP
{
IPEndPoint ipEndPoint = new IPEndPoint(ip, port);
isUp = false;
//time out 5 Sec
CallWithTimeout(ConnectToProxyServers, 5000, testSocket, ipEndPoint);
if (testSocket != null && testSocket.Connected)
{
isUp = true;
}
}
}
}
catch (Exception ex)
{
isUp = false;
}
finally
{
try
{
if (testSocket != null)
{
testSocket.Shutdown(SocketShutdown.Both);
}
}
catch (Exception ex)
{
}
finally
{
if (testSocket != null)
testSocket.Close();
}
}
return isUp;
}
private void CallWithTimeout(Action<Socket, IPEndPoint> action, int timeoutMilliseconds, Socket socket, IPEndPoint ipendPoint)
{
try
{
Action wrappedAction = () =>
{
action(socket, ipendPoint);
};
IAsyncResult result = wrappedAction.BeginInvoke(null, null);
if (result.AsyncWaitHandle.WaitOne(timeoutMilliseconds))
{
wrappedAction.EndInvoke(result);
}
}
catch (Exception ex)
{
}
}
private void ConnectToProxyServers(Socket testSocket, IPEndPoint ipEndPoint)
{
try
{
if (testSocket == null || ipEndPoint == null)
return;
testSocket.Connect(ipEndPoint);
}
catch (Exception ex)
{
}
}
After nearly two hours of debugging I have concluded that the best solution to this is to give the file name a different name to the class that it contains. For Example:
Before example.php contains:
<?php
class example {
}
Solution: rename the file to example.class.php (or something like that), or rename the class to example_class (or something like that)
Hope this helps.
There isn't a single answer for this because you can't pin point precisely the amount of memory a process uses. Most processes under Linux use shared libraries.
For instance, let's say you want to calculate memory usage for the 'ls' process. Do you count only the memory used by the executable 'ls' (if you could isolate it)? How about libc? Or all these other libraries that are required to run 'ls'?
linux-gate.so.1 => (0x00ccb000)
librt.so.1 => /lib/librt.so.1 (0x06bc7000)
libacl.so.1 => /lib/libacl.so.1 (0x00230000)
libselinux.so.1 => /lib/libselinux.so.1 (0x00162000)
libc.so.6 => /lib/libc.so.6 (0x00b40000)
libpthread.so.0 => /lib/libpthread.so.0 (0x00cb4000)
/lib/ld-linux.so.2 (0x00b1d000)
libattr.so.1 => /lib/libattr.so.1 (0x00229000)
libdl.so.2 => /lib/libdl.so.2 (0x00cae000)
libsepol.so.1 => /lib/libsepol.so.1 (0x0011a000)
You could argue that they are shared by other processes, but 'ls' can't be run on the system without them being loaded.
Also, if you need to know how much memory a process needs in order to do capacity planning, you have to calculate how much each additional copy of the process uses. I think /proc/PID/status might give you enough information of the memory usage at a single time. On the other hand, Valgrind will give you a better profile of the memory usage throughout the lifetime of the program.
You can use one of the expressions that WHEN has, but you cannot mix both of them.
WHEN when_expression
Is a simple expression to which input_expression is compared when the simple CASE format is used. when_expression is any valid expression. The data types of input_expression and each when_expression must be the same or must be an implicit conversion.
WHEN Boolean_expression
Is the Boolean expression evaluated when using the searched CASE format. Boolean_expression is any valid Boolean expression.
You could program:
1.
CASE ProductLine
WHEN 'R' THEN 'Road'
WHEN 'M' THEN 'Mountain'
WHEN 'T' THEN 'Touring'
WHEN 'S' THEN 'Other sale items'
ELSE 'Not for sale'
2.
CASE
WHEN ListPrice = 0 THEN 'Mfg item - not for resale'
WHEN ListPrice < 50 THEN 'Under $50'
WHEN ListPrice >= 50 and ListPrice < 250 THEN 'Under $250'
WHEN ListPrice >= 250 and ListPrice < 1000 THEN 'Under $1000'
ELSE 'Over $1000'
END
But in any case you can expect that the variable ranking is going to be compared in a boolean expression.
See CASE (Transact-SQL) (MSDN).
if you do not want to use the collections library, you can always do something like this:
given that a
and b
are your lists, the following returns the number of matching elements (it considers the order).
sum([1 for i,j in zip(a,b) if i==j])
Therefore,
len(a)==len(b) and len(a)==sum([1 for i,j in zip(a,b) if i==j])
will be True
if both lists are the same, contain the same elements and in the same order. False
otherwise.
So, you can define the compare function like the first response above,but without the collections library.
compare = lambda a,b: len(a)==len(b) and len(a)==sum([1 for i,j in zip(a,b) if i==j])
and
>>> compare([1,2,3], [1,2,3,3])
False
>>> compare([1,2,3], [1,2,3])
True
>>> compare([1,2,3], [1,2,4])
False
Here a complete example :
Suppose we have a Person class like :
public class Person
{
protected String fname;
protected String lname;
public Person()
{
}
public Person(String fname, String lname)
{
this.fname = fname;
this.lname = lname;
}
public boolean equals(Object objet)
{
if(objet instanceof Person)
{
Person p = (Person) objet;
return (p.getFname().equals(this.fname)) && p.getLname().equals(this.lname));
}
else return super.equals(objet);
}
@Override
public String toString()
{
return "Person(fname : " + getFname + ", lname : " + getLname + ")";
}
/** Getters and Setters **/
}
Now we create a comparator :
import java.util.Comparator;
public class ComparePerson implements Comparator<Person>
{
@Override
public int compare(Person p1, Person p2)
{
if(p1.getFname().equalsIgnoreCase(p2.getFname()))
{
return p1.getLname().compareTo(p2.getLname());
}
return p1.getFname().compareTo(p2.getFname());
}
}
Finally suppose we have a group of persons :
import java.util.ArrayList;
import java.util.Collections;
import java.util.Comparator;
import java.util.List;
public class Group
{
protected List<Person> listPersons;
public Group()
{
this.listPersons = new ArrayList<Person>();
}
public Group(List<Person> listPersons)
{
this.listPersons = listPersons;
}
public void order(boolean asc)
{
Comparator<Person> comp = asc ? new ComparePerson() : Collections.reverseOrder(new ComparePerson());
Collections.sort(this.listPersons, comp);
}
public void display()
{
for(Person p : this.listPersons)
{
System.out.println(p);
}
}
/** Getters and Setters **/
}
Now we try this :
import java.util.ArrayList;
import java.util.List;
public class App
{
public static void main(String[] args)
{
Group g = new Group();
List listPersons = new ArrayList<Person>();
g.setListPersons(listPersons);
Person p;
p = new Person("A", "B");
listPersons.add(p);
p = new Person("C", "D");
listPersons.add(p);
/** you can add Person as many as you want **/
g.display();
g.order(true);
g.display();
g.order(false);
g.display();
}
}
Float won't convert into NVARCHAR directly, first we need to convert float into money datatype and then convert into NVARCHAR, see the examples below.
SELECT CAST(CAST(1234567890.1234 AS FLOAT) AS NVARCHAR(100))
output
1.23457e+009
SELECT CAST(CAST(CAST(1234567890.1234 AS FLOAT) AS MONEY) AS NVARCHAR(100))
output
1234567890.12
In Example2 value is converted into float to NVARCHAR
pip install weasyprint # No longer supports Python 2.x.
python
>>> import weasyprint
>>> pdf = weasyprint.HTML('http://www.google.com').write_pdf()
>>> len(pdf)
92059
>>> open('google.pdf', 'wb').write(pdf)
The boost documentation provides a pretty good start example: shared_ptr example (it's actually about a vector of smart pointers) or shared_ptr doc The following answer by Johannes Schaub explains the boost smart pointers pretty well: smart pointers explained
The idea behind(in as few words as possible) ptr_vector is that it handles the deallocation of memory behind the stored pointers for you: let's say you have a vector of pointers as in your example. When quitting the application or leaving the scope in which the vector is defined you'll have to clean up after yourself(you've dynamically allocated ANDgate and ORgate) but just clearing the vector won't do it because the vector is storing the pointers and not the actual objects(it won't destroy but what it contains).
// if you just do
G.clear() // will clear the vector but you'll be left with 2 memory leaks
...
// to properly clean the vector and the objects behind it
for (std::vector<gate*>::iterator it = G.begin(); it != G.end(); it++)
{
delete (*it);
}
boost::ptr_vector<> will handle the above for you - meaning it will deallocate the memory behind the pointers it stores.
To remove specific key and element from hashmap use
hashmap.remove(key)
full source code is like
import java.util.HashMap;
public class RemoveMapping {
public static void main(String a[]){
HashMap hashMap = new HashMap();
hashMap.put(1, "One");
hashMap.put(2, "Two");
hashMap.put(3, "Three");
System.out.println("Original HashMap : "+hashMap);
hashMap.remove(3);
System.out.println("Changed HashMap : "+hashMap);
}
}
There isn't any big deal in your above snippet, but imagine a function with a few more arguments and quite a few more lines of code. Then you decide to rename your data
argument as yadda
, but miss one of the places it is used in the function's body... Now data
refers to the global, and you start having weird behaviour - where you would have a much more obvious NameError
if you didn't have a global name data
.
Also remember that in Python everything is an object (including modules, classes and functions), so there's no distinct namespaces for functions, modules or classes. Another scenario is that you import function foo
at the top of your module, and use it somewhere in your function body. Then you add a new argument to your function and named it - bad luck - foo
.
Finally, built-in functions and types also live in the same namespace and can be shadowed the same way.
None of this is much of a problem if you have short functions, good naming and a decent unit test coverage, but well, sometimes you have to maintain less than perfect code and being warned about such possible issues might help.
Assuming xmlDoc is an XmlDocument object whats wrong with xmlDoc.OuterXml?
return xmlDoc.OuterXml;
The OuterXml property returns a string version of the xml.
IN SWIFT 3. Here are the NSURLErrorDomain error codes description in a Swift 3 enum: (copied from answer above and converted what i can).
enum NSURLError: Int {
case unknown = -1
case cancelled = -999
case badURL = -1000
case timedOut = -1001
case unsupportedURL = -1002
case cannotFindHost = -1003
case cannotConnectToHost = -1004
case connectionLost = -1005
case lookupFailed = -1006
case HTTPTooManyRedirects = -1007
case resourceUnavailable = -1008
case notConnectedToInternet = -1009
case redirectToNonExistentLocation = -1010
case badServerResponse = -1011
case userCancelledAuthentication = -1012
case userAuthenticationRequired = -1013
case zeroByteResource = -1014
case cannotDecodeRawData = -1015
case cannotDecodeContentData = -1016
case cannotParseResponse = -1017
//case NSURLErrorAppTransportSecurityRequiresSecureConnection NS_ENUM_AVAILABLE(10_11, 9_0) = -1022
case fileDoesNotExist = -1100
case fileIsDirectory = -1101
case noPermissionsToReadFile = -1102
//case NSURLErrorDataLengthExceedsMaximum NS_ENUM_AVAILABLE(10_5, 2_0) = -1103
// SSL errors
case secureConnectionFailed = -1200
case serverCertificateHasBadDate = -1201
case serverCertificateUntrusted = -1202
case serverCertificateHasUnknownRoot = -1203
case serverCertificateNotYetValid = -1204
case clientCertificateRejected = -1205
case clientCertificateRequired = -1206
case cannotLoadFromNetwork = -2000
// Download and file I/O errors
case cannotCreateFile = -3000
case cannotOpenFile = -3001
case cannotCloseFile = -3002
case cannotWriteToFile = -3003
case cannotRemoveFile = -3004
case cannotMoveFile = -3005
case downloadDecodingFailedMidStream = -3006
case downloadDecodingFailedToComplete = -3007
/*
case NSURLErrorInternationalRoamingOff NS_ENUM_AVAILABLE(10_7, 3_0) = -1018
case NSURLErrorCallIsActive NS_ENUM_AVAILABLE(10_7, 3_0) = -1019
case NSURLErrorDataNotAllowed NS_ENUM_AVAILABLE(10_7, 3_0) = -1020
case NSURLErrorRequestBodyStreamExhausted NS_ENUM_AVAILABLE(10_7, 3_0) = -1021
case NSURLErrorBackgroundSessionRequiresSharedContainer NS_ENUM_AVAILABLE(10_10, 8_0) = -995
case NSURLErrorBackgroundSessionInUseByAnotherProcess NS_ENUM_AVAILABLE(10_10, 8_0) = -996
case NSURLErrorBackgroundSessionWasDisconnected NS_ENUM_AVAILABLE(10_10, 8_0)= -997
*/
}
Direct link to URLError.Code
in the Swift github repository, which contains the up to date list of error codes being used (github link).
The error is simply asking you to insert a Middleware in between which would help to handle async operations.
You could do that by :
npm i redux-thunk
Inside index.js
import thunk from "redux-thunk"
...createStore(rootReducers, applyMiddleware(thunk));
Now, async operations will work inside your functions.
Some elegant solutions. I am doubtful that the precision of the trigonometric functions is equal to the precision of the types though. For those that prefer to write a constant value, this works for g++ :-
template<class T>
class X {
public:
static constexpr T PI = (T) 3.14159265358979323846264338327950288419\
71693993751058209749445923078164062862089986280348253421170679821480865132823066\
47093844609550582231725359408128481117450284102701938521105559644622948954930381\
964428810975665933446128475648233786783165271201909145648566923460;
...
}
256 decimal digit accuracy should be enough for any future long long long double type. If more are required visit https://www.piday.org/million/.
extension UIView {
func applyGradient(isVertical: Bool, colorArray: [UIColor]) {
layer.sublayers?.filter({ $0 is CAGradientLayer }).forEach({ $0.removeFromSuperlayer() })
let gradientLayer = CAGradientLayer()
gradientLayer.colors = colorArray.map({ $0.cgColor })
if isVertical {
//top to bottom
gradientLayer.locations = [0.0, 1.0]
} else {
//left to right
gradientLayer.startPoint = CGPoint(x: 0.0, y: 0.5)
gradientLayer.endPoint = CGPoint(x: 1.0, y: 0.5)
}
backgroundColor = .clear
gradientLayer.frame = bounds
layer.insertSublayer(gradientLayer, at: 0)
}
}
USAGE
someView.applyGradient(isVertical: true, colorArray: [.green, .blue])
When you create table than you can give like follows.
CREATE TABLE categories(
cat_id int not null auto_increment primary key,
cat_name varchar(255) not null,
cat_description text
) ENGINE=InnoDB;
CREATE TABLE products(
prd_id int not null auto_increment primary key,
prd_name varchar(355) not null,
prd_price decimal,
cat_id int not null,
FOREIGN KEY fk_cat(cat_id)
REFERENCES categories(cat_id)
ON UPDATE CASCADE
ON DELETE RESTRICT
)ENGINE=InnoDB;
and when after the table create like this
ALTER table_name
ADD CONSTRAINT constraint_name
FOREIGN KEY foreign_key_name(columns)
REFERENCES parent_table(columns)
ON DELETE action
ON UPDATE action;
Following on example for it.
CREATE TABLE vendors(
vdr_id int not null auto_increment primary key,
vdr_name varchar(255)
)ENGINE=InnoDB;
ALTER TABLE products
ADD COLUMN vdr_id int not null AFTER cat_id;
To add a foreign key to the products table, you use the following statement:
ALTER TABLE products
ADD FOREIGN KEY fk_vendor(vdr_id)
REFERENCES vendors(vdr_id)
ON DELETE NO ACTION
ON UPDATE CASCADE;
For drop the key
ALTER TABLE table_name
DROP FOREIGN KEY constraint_name;
Hope this help to learn FOREIGN keys works
A SOAP message is a XML document which is used to transmit your data. WSDL is an XML document which describes how to connect and make requests to your web service.
Basically SOAP messages are the data you transmit, WSDL tells you what you can do and how to make the calls.
A quick search in Google will yield many sources for additional reading (previous book link now dead, to combat this will put any new recommendations in comments)
Just noting your specific questions:
Are all SOAP messages WSDL's? No, they are not the same thing at all.
Is SOAP a protocol that accepts its own 'SOAP messages' or 'WSDL's? No - reading required as this is far off.
If they are different, then when should I use SOAP messages and when should I use WSDL's? Soap is structure you apply to your message/data for transfer. WSDLs are used only to determine how to make calls to the service in the first place. Often this is a one time thing when you first add code to make a call to a particular webservice.
You could just declare a DBMS_SQL.VARCHAR2_TABLE to hold an in-memory variable length array indexed by a BINARY_INTEGER:
DECLARE
name_array dbms_sql.varchar2_table;
BEGIN
name_array(1) := 'Tim';
name_array(2) := 'Daisy';
name_array(3) := 'Mike';
name_array(4) := 'Marsha';
--
FOR i IN name_array.FIRST .. name_array.LAST
LOOP
-- Do something
END LOOP;
END;
You could use an associative array (used to be called PL/SQL tables) as they are an in-memory array.
DECLARE
TYPE employee_arraytype IS TABLE OF employee%ROWTYPE
INDEX BY PLS_INTEGER;
employee_array employee_arraytype;
BEGIN
SELECT *
BULK COLLECT INTO employee_array
FROM employee
WHERE department = 10;
--
FOR i IN employee_array.FIRST .. employee_array.LAST
LOOP
-- Do something
END LOOP;
END;
The associative array can hold any make up of record types.
Hope it helps, Ollie.
Seaborn box plot returns a matplotlib axes instance. Unlike pyplot itself, which has a method plt.title()
, the corresponding argument for an axes is ax.set_title()
. Therefore you need to call
sns.boxplot('Day', 'Count', data= gg).set_title('lalala')
A complete example would be:
import seaborn as sns
import matplotlib.pyplot as plt
tips = sns.load_dataset("tips")
sns.boxplot(x=tips["total_bill"]).set_title("LaLaLa")
plt.show()
Of course you could also use the returned axes instance to make it more readable:
ax = sns.boxplot('Day', 'Count', data= gg)
ax.set_title('lalala')
ax.set_ylabel('lololo')
function function_one()_x000D_
{_x000D_
alert("The function called 'function_one' has been called.")_x000D_
//Here u would like to call function_two._x000D_
function_two(); _x000D_
}_x000D_
_x000D_
function function_two()_x000D_
{_x000D_
alert("The function called 'function_two' has been called.")_x000D_
}
_x000D_
If you don't know current view controller or textview you can use the Responder Chain:
UIApplication.shared.sendAction(#selector(UIView.endEditing(_:)), to:nil, from:nil, for:nil)
I had the same issue. I wanted to send data via POST. I used the following code:
URL url = new URL("http://example.com/getval.php");
Map<String,Object> params = new LinkedHashMap<>();
params.put("param1", param1);
params.put("param2", param2);
StringBuilder postData = new StringBuilder();
for (Map.Entry<String,Object> param : params.entrySet()) {
if (postData.length() != 0) postData.append('&');
postData.append(URLEncoder.encode(param.getKey(), "UTF-8"));
postData.append('=');
postData.append(URLEncoder.encode(String.valueOf(param.getValue()), "UTF-8"));
}
String urlParameters = postData.toString();
URLConnection conn = url.openConnection();
conn.setDoOutput(true);
OutputStreamWriter writer = new OutputStreamWriter(conn.getOutputStream());
writer.write(urlParameters);
writer.flush();
String result = "";
String line;
BufferedReader reader = new BufferedReader(new InputStreamReader(conn.getInputStream()));
while ((line = reader.readLine()) != null) {
result += line;
}
writer.close();
reader.close()
System.out.println(result);
I used Jsoup for parse:
Document doc = Jsoup.parseBodyFragment(value);
Iterator<Element> opts = doc.select("option").iterator();
for (;opts.hasNext();) {
Element item = opts.next();
if (item.hasAttr("value")) {
System.out.println(item.attr("value"));
}
}
Would this help?
tail -f access.log | stdbuf -oL cut -d ' ' -f1 | uniq
This will immediately display unique entries from access.log using the stdbuf utility.
UPDATE 2014-11-14: The solution below is too old, I recommend using flex box layout method. Here is a overview: http://learnlayout.com/flexbox.html
My solution
<li class="grid-list-header row-cw row-cw-msg-list ...">
<div class="col-md-1 col-cw col-cw-name">
<div class="col-md-1 col-cw col-cw-keyword">
<div class="col-md-1 col-cw col-cw-reply">
<div class="col-md-1 col-cw col-cw-action">
</li>
<li class="grid-list-item row-cw row-cw-msg-list ...">
<div class="col-md-1 col-cw col-cw-name">
<div class="col-md-1 col-cw col-cw-keyword">
<div class="col-md-1 col-cw col-cw-reply">
<div class="col-md-1 col-cw col-cw-action">
</li>
.row-cw {
position: relative;
}
.col-cw {
position: absolute;
top: 0;
}
.ir-msg-list {
$col-reply-width: 140px;
$col-action-width: 130px;
.row-cw-msg-list {
padding-right: $col-reply-width + $col-action-width;
}
.col-cw-name {
width: 50%;
}
.col-cw-keyword {
width: 50%;
}
.col-cw-reply {
width: $col-reply-width;
right: $col-action-width;
}
.col-cw-action {
width: $col-action-width;
right: 0;
}
}
Without modify too much bootstrap layout code.
Update (not from OP): adding code snippet below to facilitate understanding of this answer. But it doesn't seem to work as expected.
ul {_x000D_
list-style: none;_x000D_
}_x000D_
.row-cw {_x000D_
position: relative;_x000D_
height: 20px;_x000D_
}_x000D_
.col-cw {_x000D_
position: absolute;_x000D_
top: 0;_x000D_
background-color: rgba(150, 150, 150, .5);_x000D_
}_x000D_
.row-cw-msg-list {_x000D_
padding-right: 270px;_x000D_
}_x000D_
.col-cw-name {_x000D_
width: 50%;_x000D_
background-color: rgba(150, 0, 0, .5);_x000D_
}_x000D_
.col-cw-keyword {_x000D_
width: 50%;_x000D_
background-color: rgba(0, 150, 0, .5);_x000D_
}_x000D_
.col-cw-reply {_x000D_
width: 140px;_x000D_
right: 130px;_x000D_
background-color: rgba(0, 0, 150, .5);_x000D_
}_x000D_
.col-cw-action {_x000D_
width: 130px;_x000D_
right: 0;_x000D_
background-color: rgba(150, 150, 0, .5);_x000D_
}
_x000D_
<ul class="ir-msg-list">_x000D_
<li class="grid-list-header row-cw row-cw-msg-list">_x000D_
<div class="col-md-1 col-cw col-cw-name">name</div>_x000D_
<div class="col-md-1 col-cw col-cw-keyword">keyword</div>_x000D_
<div class="col-md-1 col-cw col-cw-reply">reply</div>_x000D_
<div class="col-md-1 col-cw col-cw-action">action</div>_x000D_
</li>_x000D_
_x000D_
<li class="grid-list-item row-cw row-cw-msg-list">_x000D_
<div class="col-md-1 col-cw col-cw-name">name</div>_x000D_
<div class="col-md-1 col-cw col-cw-keyword">keyword</div>_x000D_
<div class="col-md-1 col-cw col-cw-reply">reply</div>_x000D_
<div class="col-md-1 col-cw col-cw-action">action</div>_x000D_
</li>_x000D_
</ul>
_x000D_
You're declaring everything in the parent page. So the references to window
and document
are to the parent page's. If you want to do stuff to the iframe
's, use iframe || iframe.contentWindow
to access its window
, and iframe.contentDocument || iframe.contentWindow.document
to access its document
.
There's a word for what's happening, possibly "lexical scope": What is lexical scope?
The only context of a scope is this. And in your example, the owner of the method is doc
, which is the iframe
's document
. Other than that, anything that's accessed in this function that uses known objects are the parent's (if not declared in the function). It would be a different story if the function were declared in a different place, but it's declared in the parent page.
This is how I would write it:
(function () {
var dom, win, doc, where, iframe;
iframe = document.createElement('iframe');
iframe.src = "javascript:false";
where = document.getElementsByTagName('script')[0];
where.parentNode.insertBefore(iframe, where);
win = iframe.contentWindow || iframe;
doc = iframe.contentDocument || iframe.contentWindow.document;
doc.open();
doc._l = (function (w, d) {
return function () {
w.vanishing_global = new Date().getTime();
var js = d.createElement("script");
js.src = 'test-vanishing-global.js?' + w.vanishing_global;
w.name = "foobar";
d.foobar = "foobar:" + Math.random();
d.foobar = "barfoo:" + Math.random();
d.body.appendChild(js);
};
})(win, doc);
doc.write('<body onload="document._l();"></body>');
doc.close();
})();
The aliasing of win
and doc
as w
and d
aren't necessary, it just might make it less confusing because of the misunderstanding of scopes. This way, they are parameters and you have to reference them to access the iframe
's stuff. If you want to access the parent's, you still use window
and document
.
I'm not sure what the implications are of adding methods to a document
(doc
in this case), but it might make more sense to set the _l
method on win
. That way, things can be run without a prefix...such as <body onload="_l();"></body>
Setting the CurrentCell
and then calling BeginEdit(true)
works well for me.
The following code shows an eventHandler for the KeyDown
event that sets a cell to be editable.
My example only implements one of the required key press overrides but in theory the others should work the same. (and I'm always setting the [0][0] cell to be editable but any other cell should work)
private void dataGridView1_KeyDown(object sender, KeyEventArgs e)
{
if (e.KeyCode == Keys.Tab && dataGridView1.CurrentCell.ColumnIndex == 1)
{
e.Handled = true;
DataGridViewCell cell = dataGridView1.Rows[0].Cells[0];
dataGridView1.CurrentCell = cell;
dataGridView1.BeginEdit(true);
}
}
If you haven't found it previously, the DataGridView FAQ is a great resource, written by the program manager for the DataGridView control, which covers most of what you could want to do with the control.
If you need fractional number, then this is the answer for you:
android:inputType="numberDecimal"
Please try this ... hope it helps
JSONObject jsonObj1=null;
JSONObject jsonObj2=null;
JSONArray array=new JSONArray();
JSONArray array2=new JSONArray();
jsonObj1=new JSONObject();
jsonObj2=new JSONObject();
array.put(new JSONObject().put("firstName", "John").put("lastName","Doe"))
.put(new JSONObject().put("firstName", "Anna").put("v", "Smith"))
.put(new JSONObject().put("firstName", "Peter").put("v", "Jones"));
array2.put(new JSONObject().put("firstName", "John").put("lastName","Doe"))
.put(new JSONObject().put("firstName", "Anna").put("v", "Smith"))
.put(new JSONObject().put("firstName", "Peter").put("v", "Jones"));
jsonObj1.put("employees", array);
jsonObj1.put("manager", array2);
Response response = null;
response = Response.status(Status.OK).entity(jsonObj1.toString()).build();
return response;
Use the SqlDataAdapter, this would simplify everything.
//Your code to this point
DataTable dt = new DataTable();
using(var cmd = new SqlCommand("usp_GetABCD", sqlcon))
{
using(var da = new SqlDataAdapter(cmd))
{
da.Fill(dt):
}
}
and your DataTable will have the information you are looking for, so long as your stored proceedure returns a data set (cursor).
Here is my summary of the above solutions to concatenate / combine two columns with int and str value into a new column, using a separator between the values of columns. Three solutions work for this purpose.
# be cautious about the separator, some symbols may cause "SyntaxError: EOL while scanning string literal".
# e.g. ";;" as separator would raise the SyntaxError
separator = "&&"
# pd.Series.str.cat() method does not work to concatenate / combine two columns with int value and str value. This would raise "AttributeError: Can only use .cat accessor with a 'category' dtype"
df["period"] = df["Year"].map(str) + separator + df["quarter"]
df["period"] = df[['Year','quarter']].apply(lambda x : '{} && {}'.format(x[0],x[1]), axis=1)
df["period"] = df.apply(lambda x: f'{x["Year"]} && {x["quarter"]}', axis=1)
I know this thread has been answered, but another solution that may be useful for some, particularly to those with multiple pages where they want to have this button, is to give the input an id and place the code in a JavaScript file. You can then place the code for the button on multiple pages, taking up less space in your code.
For the button:
<input type="button" id="cancel_edit" value="Cancel"></input>
in the JavaScript file:
$("#cancel_edit").click(function(){
window.open('','_parent','');
window.close();
});
There is a much simpler way. This does not care if it is binary or text file.
Use noskipws.
char buf[SZ];
ifstream f("file");
int i;
for(i=0; f >> noskipws >> buffer[i]; i++);
ofstream f2("writeto");
for(int j=0; j < i; j++) f2 << noskipws << buffer[j];
Or you can just use string instead of the buffer.
string s; char c;
ifstream f("image.jpg");
while(f >> noskipws >> c) s += c;
ofstream f2("copy.jpg");
f2 << s;
normally stream skips white space characters like space or new line, tab and all other control characters. But noskipws makes all the characters transferred. So this will not only copy a text file but also a binary file. And stream uses buffer internally, I assume the speed won't be slow.
You literally just pass them in std::thread(func1,a,b,c,d);
that should have compiled if the objects existed, but it is wrong for another reason. Since there is no object created you cannot join or detach the thread and the program will not work correctly. Since it is a temporary the destructor is immediately called, since the thread is not joined or detached yet std::terminate
is called. You could std::join
or std::detach
it before the temp is destroyed, like std::thread(func1,a,b,c,d).join();//or detach
.
This is how it should be done.
std::thread t(func1,a,b,c,d);
t.join();
You could also detach the thread, read-up on threads if you don't know the difference between joining and detaching.
If your <div>
has position: absolute
you need to use width: 100%;
#parent {
width: 100%;
text-align: center;
}
#child {
display: inline-block;
}
Regarding the following solution:
grep -Fxq "$FILENAME" my_list.txt
In case you are wondering (as I did) what -Fxq
means in plain English:
F
: Affects how PATTERN is interpreted (fixed string instead of a regex)x
: Match whole lineq
: Shhhhh... minimal printingFrom the man file:
-F, --fixed-strings
Interpret PATTERN as a list of fixed strings, separated by newlines, any of which is to be matched.
(-F is specified by POSIX.)
-x, --line-regexp
Select only those matches that exactly match the whole line. (-x is specified by POSIX.)
-q, --quiet, --silent
Quiet; do not write anything to standard output. Exit immediately with zero status if any match is
found, even if an error was detected. Also see the -s or --no-messages option. (-q is specified by
POSIX.)
If we need only one column to be numeric
yyz$b <- as.numeric(as.character(yyz$b))
But, if all the columns needs to changed to numeric
, use lapply
to loop over the columns and convert to numeric
by first converting it to character
class as the columns were factor
.
yyz[] <- lapply(yyz, function(x) as.numeric(as.character(x)))
Both the columns in the OP's post are factor
because of the string "n/a"
. This could be easily avoided while reading the file using na.strings = "n/a"
in the read.table/read.csv
or if we are using data.frame
, we can have character
columns with stringsAsFactors=FALSE
(the default is stringsAsFactors=TRUE
)
Regarding the usage of apply
, it converts the dataset to matrix
and matrix
can hold only a single class. To check the class
, we need
lapply(yyz, class)
Or
sapply(yyz, class)
Or check
str(yyz)
If using a plugin is ok in you case, then I suggest Ben Alman's clickoutside plugin located here:
its usage is as simple as this:
$('#menu').bind('clickoutside', function (event) {
$(this).hide();
});
hope this helps.
Install Anaconda for Python 3.5 - Can install from here for 64 bit windows
Then install TensorFlow from here
(I tried previously with Anaconda for Python 3.6 but failed even after creating Conda env for Python3.5)
Additionally if you want to run a Jupyter Notebook and use TensorFlow in it. Use following steps.
Change to TensorFlow env:
C: > activate tensorflow
(tensorflow) C: > pip install jupyter notebook
Once installed, you can launch Jupyter Notebook and test
(tensorflow) C: > jupyter notebook
@
suppresses the error message thrown by the function. fopen
throws an error when the file doesn't exit. @
symbol makes the execution to move to the next line even the file doesn't exists. My suggestion would be not using this in your local environment when you develop a PHP code.
Just remove COLUMN
from ADD COLUMN
ALTER TABLE Employees
ADD EmployeeID numeric NOT NULL IDENTITY (1, 1)
ALTER TABLE Employees ADD CONSTRAINT
PK_Employees PRIMARY KEY CLUSTERED
(
EmployeeID
) WITH( STATISTICS_NORECOMPUTE = OFF, IGNORE_DUP_KEY = OFF,
ALLOW_ROW_LOCKS = ON, ALLOW_PAGE_LOCKS = ON) ON [PRIMARY]
What about this solution?
#ifndef VERSION_H
#define VERSION_H
static const char SVER[] = "14.2.1";
static const char AVER[] = "1.1.0.0";
#else
extern static const char SVER[];
extern static const char AVER[];
#endif /*VERSION_H */
The only draw back I see is that the include guard doesn't save you if you include it twice in the same file.
Add the active: false
option (documentation)..
$("#accordion").accordion({ header: "h3", collapsible: true, active: false });
Try this:
var date = new Date();
console.log(date instanceof Date && !isNaN(date.valueOf()));
This should return true
.
UPDATED: Added isNaN
check to handle the case commented by Julian H. Lam
You can solve this by unchecking contextswitchdeadlock from
Debug->Exceptions ... -> Expand MDA node -> uncheck -> contextswitchdeadlock
Just add a "multidex-config.txt" in you app directory:
For those of you who are using MacOS and like me perhaps have been circling the internet as to why some R packages do not install here is a possible help.
If you get a non-zero exit status first check to ensure all dependencies are installed as well. Read through the messaging. If that is checked off, then look for indications such as gfortran: No such a file or directory. That might be due to Apple OS compiler issues that some packages will not install unless you use their binary version. Look for binary zip file in the package cran.r-project.org page, download it and use the following command to get the package installed:
install.packages("/PATH/zip file ", repos = NULL, type="source")
On my machine:
C:\Program Files\PostgreSQL\8.4\data\postgresql.conf
First copy your jar file and paste into you Android project's libs folder.
Now right click on newly added (Pasted) jar file and select option
Build Path -> Add to build path
Now you added jar file will get displayed under Referenced Libraries. Again right click on it and select option
Build Path -> Configure Build path
A new window will get appeared. Select Java Build Path from left menu panel and then select Order and export Enable check on added jar file.
Now run your project.
More details @ Add-JARs-to-Project-Build-Paths-in-Eclipse-(Java)
<!-- Since angular2 stable release multiple directives are not supported on a single element(from the docs) still you can use it like below -->_x000D_
_x000D_
_x000D_
<ul class="list-group">_x000D_
<template ngFor let-item [ngForOf]="stuff" [ngForTrackBy]="trackBy_stuff">_x000D_
<li *ngIf="item.name" class="list-group-item">{{item.name}}</li>_x000D_
</template>_x000D_
</ul>
_x000D_
The tool that richardtz suggests is excellent.
Another one that is amazing and comes with a 30 day free trial is Araxis Merge. This one does a 3 way merge and is much more feature complete than winmerge, but it is a commercial product.
You might also like to check out Scott Hanselman's developer tool list, which mentions a couple more in addition to winmerge
That one shows up correctly as HTML5-Tag for those looking for this:
<input type="datetime" name="somedatafield" value="2011-12-21T11:33:23Z" />
If you cannot use spark-csv, you can do the following:
df.rdd.map(lambda x: ",".join(map(str, x))).coalesce(1).saveAsTextFile("file.csv")
If you need to handle strings with linebreaks or comma that will not work. Use this:
import csv
import cStringIO
def row2csv(row):
buffer = cStringIO.StringIO()
writer = csv.writer(buffer)
writer.writerow([str(s).encode("utf-8") for s in row])
buffer.seek(0)
return buffer.read().strip()
df.rdd.map(row2csv).coalesce(1).saveAsTextFile("file.csv")
This isn't in the boto3 documentation. This worked for me:
object.get()["Body"].read()
object being an s3 object: http://boto3.readthedocs.org/en/latest/reference/services/s3.html#object
There's also the online viewers:
http://www.webgraphviz.com/
http://sandbox.kidstrythisathome.com/erdos/
http://viz-js.com/
UITableViewCell
has three default selection styles:-
Implementation is as follows:-
- (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *) indexPath {
[cell setSelectionStyle:UITableViewCellSelectionStyleNone];
}
I know it's late and was answered, but I'd like to share the neat stuff I made. I created an ng-validate directive that hooks the onsubmit of the form, then it issues prevent-default if the $eval is false:
app.directive('ngValidate', function() {
return function(scope, element, attrs) {
if (!element.is('form'))
throw new Error("ng-validate must be set on a form elment!");
element.bind("submit", function(event) {
if (!scope.$eval(attrs.ngValidate, {'$event': event}))
event.preventDefault();
if (!scope.$$phase)
scope.$digest();
});
};
});
In your html:
<form name="offering" method="post" action="offer" ng-validate="<boolean expression">
This will do it:
[[NSOperationQueue mainQueue] addOperationWithBlock:^ {
//Your code goes in here
NSLog(@"Main Thread Code");
}];
Hope this helps!
Your problem is the typo in the function CreateDectionary().You should change it to CreateDictionary(). collect2: error: ld returned 1 exit status is the same problem in both C and C++, usually it means that you have unresolved symbols. In your case is the typo that i mentioned before.
The above process is slow,you can use below method but you need to move collection by collection to another db.
use admin
db.runCommand({renameCollection: "[db_old_name].[collection_name]", to: "[db_new_name].[collection_name]"})
Because the SCHEDULER_ADMIN role is a powerful role allowing a grantee to execute code as any user, you should consider granting individual Scheduler system privileges instead. Object and system privileges are granted using regular SQL grant syntax. An example is if the database administrator issues the following statement:
GRANT CREATE JOB TO scott;
After this statement is executed, scott can create jobs, schedules, or programs in his schema.
copied from http://docs.oracle.com/cd/B19306_01/server.102/b14231/schedadmin.htm#i1006239
This seems like an easy task, but you have to take care of several things:
<script>
or <style>
contents, or HTML tags or attributes, which is not always desiredtitle
and alt
(in a controlled manner) as wellGuarding against xss attacks generally can’t be solved by using the approaches below. E.g. if a fetch
call reads a URL from somewhere on the page, then sends a request to that URL, the functions below won’t stop that, since this scenario is inherently unsafe.
This basically selects all elements that contain normal text, goes through their child nodes — among those are also text nodes —, seeks those text nodes out and replaces their contents.
You can optionally specify a different root target
, e.g. replaceOnDocument(/€/g, "$", { target: someElement });
; by default, the <body>
is chosen.
const replaceOnDocument = (pattern, string, {target = document.body} = {}) => {
// Handle `string` — see the last section
[
target,
...target.querySelectorAll("*:not(script):not(noscript):not(style)")
].forEach(({childNodes: [...nodes]}) => nodes
.filter(({nodeType}) => nodeType === document.TEXT_NODE)
.forEach((textNode) => textNode.textContent = textNode.textContent.replace(pattern, string)));
};
replaceOnDocument(/€/g, "$");
Now, this is a little more complex: you need to check three cases: whether a node is a text node, whether it’s an element and its attribute should be replaced, or whether it’s an element and its property should be replaced. A replacer
object provides methods for text nodes and for elements.
Before replacing attributes and properties, the replacer needs to check whether the element has a matching attribute; otherwise new attributes get created, undesirably. It also needs to check whether the targeted property is a string, since only strings can be replaced, or whether the matching property to the targeted attribute is not a function, since this may lead to an xss attack.
In the example below, you can see how to use the extended features: in the optional third argument, you may add an attrs
property and a props
property, which is an iterable (e.g. an array) each, for the attributes to be replaced and the properties to be replaced, respectively.
You’ll also notice that this snippet uses flatMap
. If that’s not supported, use a polyfill or replace it by the reduce
–concat
, or map
–reduce
–concat
construct, as seen in the linked documentation.
const replaceOnDocument = (() => {
const replacer = {
[document.TEXT_NODE](node, pattern, string){
node.textContent = node.textContent.replace(pattern, string);
},
[document.ELEMENT_NODE](node, pattern, string, {attrs, props} = {}){
attrs.forEach((attr) => {
if(typeof node[attr] !== "function" && node.hasAttribute(attr)){
node.setAttribute(attr, node.getAttribute(attr).replace(pattern, string));
}
});
props.forEach((prop) => {
if(typeof node[prop] === "string" && node.hasAttribute(prop)){
node[prop] = node[prop].replace(pattern, string);
}
});
}
};
return (pattern, string, {target = document.body, attrs: [...attrs] = [], props: [...props] = []} = {}) => {
// Handle `string` — see the last section
[
target,
...[
target,
...target.querySelectorAll("*:not(script):not(noscript):not(style)")
].flatMap(({childNodes: [...nodes]}) => nodes)
].filter(({nodeType}) => replacer.hasOwnProperty(nodeType))
.forEach((node) => replacer[node.nodeType](node, pattern, string, {
attrs,
props
}));
};
})();
replaceOnDocument(/€/g, "$", {
attrs: [
"title",
"alt",
"onerror" // This will be ignored
],
props: [
"value" // Changing an `<input>`’s `value` attribute won’t change its current value, so the property needs to be accessed here
]
});
If you need to make it work with HTML entities like ­
, the above approaches will just literally produce the string ­
, since that’s an HTML entity and will only work when assigning .innerHTML
or using related methods.
So let’s solve it by passing the input string to something that accepts an HTML string: a new, temporary HTMLDocument
. This is created by the DOMParser
’s parseFromString
method; in the end we read its documentElement
’s textContent
:
string = new DOMParser().parseFromString(string, "text/html").documentElement.textContent;
If you want to use this, choose one of the approaches above, depending on whether or not you want to replace HTML attributes and DOM properties in addition to text; then simply replace the comment // Handle `string` — see the last section
by the above line.
Now you can use replaceOnDocument(/Güterzug/g, "Güter­zug");
.
NB: If you don’t use the string handling code, you may also remove the {
}
around the arrow function body.
Note that this parses HTML entities but still disallows inserting actual HTML tags, since we’re reading only the textContent
. This is also safe against most cases of xss: since we’re using parseFromString
and the page’s document
isn’t affected, no <script>
gets downloaded and no onerror
handler gets executed.
You should also consider using \xAD
instead of ­
directly in your JavaScript string, if it turns out to be simpler.
From RFC 1945 (HTTP/1.0) and RFC 2617 (HTTP Authentication referenced by HTTP/1.1)
The realm attribute (case-insensitive) is required for all authentication schemes which issue a challenge. The realm value (case-sensitive), in combination with the canonical root URL of the server being accessed, defines the protection space. These realms allow the protected resources on a server to be partitioned into a set of protection spaces, each with its own authentication scheme and/or authorization database. The realm value is a string, generally assigned by the origin server, which may have additional semantics specific to the authentication scheme.
In short, pages in the same realm should share credentials. If your credentials work for a page with the realm "My Realm", it should be assumed that the same username and password combination should work for another page with the same realm.
There is several escaping options with same result:
body { width: ~"calc(100% - 250px - 1.5em)"; }
body { width: calc(~"100% - 250px - 1.5em"); }
body { width: calc(100% ~"-" 250px ~"-" 1.5em); }
Try this query:
SELECT column_name
FROM table_name
GROUP BY column_name
HAVING COUNT(column_name) = 1;
I could not restart IIexpress. This is the solution that worked for me
This is how I cleared my recyclerview and added new items to it with animation:
mList.clear();
mAdapter.notifyDataSetChanged();
mSwipeRefreshLayout.setRefreshing(false);
//reset adapter with empty array list (it did the trick animation)
mAdapter = new MyAdapter(context, mList);
recyclerView.setAdapter(mAdapter);
mList.addAll(newList);
mAdapter.notifyDataSetChanged();
Run vim
from the terminal. For the basics, you're advised to run the command vimtutor
.
# On your terminal command line:
$ vim
If you have a specific file to edit, pass it as an argument.
$ vim yourfile.cpp
Likewise, launch the tutorial
$ vimtutor
here is an example
<a class="facultySelecter" data-faculty="ahs" href="#">Arts and Human Sciences</a></li>
$('.facultySelecter').click(function() {
var unhide = $(this).data("faculty");
});
this would set var unhide as ahs, so use .data("foo") to get the "foo" value of the data-* attribute you're looking to get
Update: Apparently possible by passing a flag to mysql_connect()
. See Executing multiple SQL queries in one statement with PHP Nevertheless, any current reader should avoid using the mysql_
-class of functions and prefer PDO.
You can't do that using the regular mysql-api in PHP. Just execute two queries. The second one will be so fast that it won't matter. This is a typical example of micro optimization. Don't worry about it.
For the record, it can be done using mysqli and the mysqli_multi_query-function.
I recommend using React.createRef()
and ref=this.elementRef
to get the DOM element reference instead of ReactDOM.findDOMNode(this)
. This way you can get the reference to the DOM element as an instance variable.
import React, { Component } from 'react';
import ReactDOM from 'react-dom';
class MenuItem extends Component {
constructor(props) {
super(props);
this.elementRef = React.createRef();
}
handleNVFocus = event => {
console.log('Focused: ' + this.props.menuItem.caption.toUpperCase());
}
componentDidMount() {
this.elementRef.addEventListener('nv-focus', this.handleNVFocus);
}
componentWillUnmount() {
this.elementRef.removeEventListener('nv-focus', this.handleNVFocus);
}
render() {
return (
<element ref={this.elementRef} />
)
}
}
export default MenuItem;
Yes. You can loop through an object using for loop. Here is an example
var myObj = {_x000D_
abc: 'ABC',_x000D_
bca: 'BCA',_x000D_
zzz: 'ZZZ',_x000D_
xxx: 'XXX',_x000D_
ccc: 'CCC',_x000D_
}_x000D_
_x000D_
var k = Object.keys (myObj);_x000D_
for (var i = 0; i < k.length; i++) {_x000D_
console.log (k[i] + ": " + myObj[k[i]]);_x000D_
}
_x000D_
NOTE: the example mentioned above will only work in IE9+. See Objec.keys browser support here.
.vs\PROJECTNAME\config\applicationhost.config
Change "*:44320:localhost" to "*:44320:*".
<bindings>
<binding protocol="http" bindingInformation="*:5737:localhost" />
<binding protocol="https" bindingInformation="*:44320:*" />
</bindings>
Both links work:
Now if you want the app to work with the custom domain, just add the following line to the host file:
C:\Windows\System32\drivers\etc\hosts
127.0.0.1 customdomain
Now:
NOTE: If your app works without SSL, change the protocol="http" part.
change_column_default :employees, :foreign, false
As others have suggested, you can set the username and password directly in the Ajax call:
$.ajax({
username: username,
password: password,
// ... other parameters.
});
OR use the headers property if you would rather not store your credentials in plain text:
$.ajax({
headers: {"Authorization": "Basic xxxx"},
// ... other parameters.
});
Whichever way you send it, the server has to be very polite. For Apache, your .htaccess file should look something like this:
<LimitExcept OPTIONS>
AuthUserFile /path/to/.htpasswd
AuthType Basic
AuthName "Whatever"
Require valid-user
</LimitExcept>
Header always set Access-Control-Allow-Headers Authorization
Header always set Access-Control-Allow-Credentials true
SetEnvIf Origin "^(.*?)$" origin_is=$0
Header always set Access-Control-Allow-Origin %{origin_is}e env=origin_is
For some cross domain requests, the browser sends a preflight OPTIONS request that is missing your authentication headers. Wrap your authentication directives inside the LimitExcept tag to respond properly to the preflight.
Then send a few headers to tell the browser that it is allowed to authenticate, and the Access-Control-Allow-Origin to grant permission for the cross-site request.
In some cases, the * wildcard doesn't work as a value for Access-Control-Allow-Origin: You need to return the exact domain of the callee. Use SetEnvIf to capture this value.
TL;DR
The @Autowired
annotation spares you the need to do the wiring by yourself in the XML file (or any other way) and just finds for you what needs to be injected where and does that for you.
Full explanation
The @Autowired
annotation allows you to skip configurations elsewhere of what to inject and just does it for you. Assuming your package is com.mycompany.movies
you have to put this tag in your XML (application context file):
<context:component-scan base-package="com.mycompany.movies" />
This tag will do an auto-scanning. Assuming each class that has to become a bean is annotated with a correct annotation like @Component
(for simple bean) or @Controller
(for a servlet control) or @Repository
(for DAO
classes) and these classes are somewhere under the package com.mycompany.movies
, Spring will find all of these and create a bean for each one. This is done in 2 scans of the classes - the first time it just searches for classes that need to become a bean and maps the injections it needs to be doing, and on the second scan it injects the beans. Of course, you can define your beans in the more traditional XML file or with an @Configuration
class (or any combination of the three).
The @Autowired
annotation tells Spring where an injection needs to occur. If you put it on a method setMovieFinder
it understands (by the prefix set
+ the @Autowired
annotation) that a bean needs to be injected. In the second scan, Spring searches for a bean of type MovieFinder
, and if it finds such bean, it injects it to this method. If it finds two such beans you will get an Exception
. To avoid the Exception
, you can use the @Qualifier
annotation and tell it which of the two beans to inject in the following manner:
@Qualifier("redBean")
class Red implements Color {
// Class code here
}
@Qualifier("blueBean")
class Blue implements Color {
// Class code here
}
Or if you prefer to declare the beans in your XML, it would look something like this:
<bean id="redBean" class="com.mycompany.movies.Red"/>
<bean id="blueBean" class="com.mycompany.movies.Blue"/>
In the @Autowired
declaration, you need to also add the @Qualifier
to tell which of the two color beans to inject:
@Autowired
@Qualifier("redBean")
public void setColor(Color color) {
this.color = color;
}
If you don't want to use two annotations (the @Autowired
and @Qualifier
) you can use @Resource
to combine these two:
@Resource(name="redBean")
public void setColor(Color color) {
this.color = color;
}
The @Resource
(you can read some extra data about it in the first comment on this answer) spares you the use of two annotations and instead, you only use one.
I'll just add two more comments:
@Inject
instead of @Autowired
because it is not Spring-specific and is part of the JSR-330
standard.@Inject
/ @Autowired
on a constructor instead of a method. If you put it on a constructor, you can validate that the injected beans are not null and fail fast when you try to start the application and avoid a NullPointerException
when you need to actually use the bean.Update: To complete the picture, I created a new question about the @Configuration
class.
If you are on a unixoid operating system and want to extract just a single file you can try the following. The structure of the chrome://cache
pages is URL, parsed HTTP header, hex dump of the HTTP header and then hex dump of the payload.
To extract a file copy all payload lines from a Chrome cache page to the clipboard (starting at the second 00000000: ...
line), paste them into a text editor and save them as a plain text file (e.g. file.txt
). If the payload is a gzipped WOFF file use xxd -r file.txt > file.woff.gz
to convert it back to a binary file and gunzip file.woff.gz
for decompression.
You can then use woff2otf to convert WOFF files to the OTF format or woff2 to convert WOFF 2.0 files to the TTF format. For batch processing this workflow should obviously be scripted.
Have you had a look at getcwd()
?
#include <unistd.h>
char *getcwd(char *buf, size_t size);
Simple example:
#include <unistd.h>
#include <stdio.h>
#include <limits.h>
int main() {
char cwd[PATH_MAX];
if (getcwd(cwd, sizeof(cwd)) != NULL) {
printf("Current working dir: %s\n", cwd);
} else {
perror("getcwd() error");
return 1;
}
return 0;
}
Adding a new answer just as a reference for future researchers and as nobody mentioned that yet I think it's valid.
Another good option is ng-grid http://angular-ui.github.io/ng-grid/.
And there's a beta version (http://ui-grid.info/) available already with some improvements:
UPDATE:
It seems UI GRID is not beta anymore.
With the 3.0 release, the repository has been renamed from "ng-grid" to "ui-grid".
If you are using six
, you can try this, by which utilizing the latest Python 3 API and can run in both Python 2/3:
import six
if six.PY2:
# FileNotFoundError is only available since Python 3.3
FileNotFoundError = IOError
from io import open
fname = 'index.rst'
try:
with open(fname, "rt", encoding="utf-8") as f:
pass
# do_something_with_f ...
except FileNotFoundError:
print('Oops.')
And, Python 2 support abandon is just deleting everything related to six
.
There would be multiple ways to find an element (in your case the third Google Search result).
One of the ways would be using Xpath
#For the 3rd Link
driver.findElement(By.xpath(".//*[@id='rso']/li[3]/div/h3/a")).click();
#For the 1st Link
driver.findElement(By.xpath(".//*[@id='rso']/li[2]/div/h3/a")).click();
#For the 2nd Link
driver.findElement(By.xpath(".//*[@id='rso']/li[1]/div/h3/a")).click();
The other options are
By.ByClassName
By.ByCssSelector
By.ById
By.ByLinkText
By.ByName
By.ByPartialLinkText
By.ByTagName
To better understand each one of them, you should try learning Selenium on something simpler than the Google Search Result page.
Example - http://www.google.com/intl/gu/contact/
To Interact with the Text input field with the placeholder "How can we help? Ask here." You could do it this way -
# By.ByClassName
driver.findElement(By.ClassName("searchbox")).sendKeys("Hey!");
# By.ByCssSelector
driver.findElement(By.CssSelector(".searchbox")).sendKeys("Hey!");
# By.ById
driver.findElement(By.Id("query")).sendKeys("Hey!");
# By.ByName
driver.findElement(By.Name("query")).sendKeys("Hey!");
# By.ByXpath
driver.findElement(By.xpath(".//*[@id='query']")).sendKeys("Hey!");
Decision tree between ES5, ES6 and TypeScript
Do you mind having a build step?
Do you want to use types?
ES5 is the JavaScript you know and use in the browser today it is what it is and does not require a build step to transform it into something that will run in today's browsers
ES6 (also called ES2015) is the next iteration of JavaScript, but it does not run in today's browsers. There are quite a few transpilers that will export ES5 for running in browsers. It is still a dynamic (read: untyped) language.
TypeScript provides an optional typing system while pulling in features from future versions of JavaScript (ES6 and ES7).
Note: a lot of the transpilers out there (i.e. babel, TypeScript) will allow you to use features from future versions of JavaScript today and exporting code that will still run in today's browsers.
The simples way is to use 'to' property:
<Link to="chart" target="_blank" to="http://link2external.page.com" >Test</Link>
The answers in this topic are all great. However i'd like to propose another one. Most likely you have been given an api and want that into your c# project. Using Postman, you can setup and test the api call there and once it runs properly, you can simply click 'Code' and the request that you have been working on, is written to a c# snippet. like this:
var client = new RestClient("https://api.XXXXX.nl/oauth/token");
client.Timeout = -1;
var request = new RestRequest(Method.POST);
request.AddHeader("Authorization", "Basic N2I1YTM4************************************jI0YzJhNDg=");
request.AddHeader("Content-Type", "application/x-www-form-urlencoded");
request.AddHeader("Content-Type", "application/x-www-form-urlencoded");
request.AddParameter("grant_type", "password");
request.AddParameter("username", "[email protected]");
request.AddParameter("password", "XXXXXXXXXXXXX");
IRestResponse response = client.Execute(request);
Console.WriteLine(response.Content);
The code above depends on the nuget package RestSharp, which you can easily install.
to set the height of table, you need to first set css property "display: block" then you can add "width/height" properties. I find this Mozilla Article a very good resource to learn how to style tables : Link
You can also use String.valueOf((Object) nullableString)
like
switch (String.valueOf((Object) nullableString)) {
case "someCase"
//...
break;
...
case "null": // or default:
//...
break;
}
See interesting SO Q/A: Why does String.valueOf(null) throw a NullPointerException
Run this:
curl http://169.254.169.254/latest/meta-data/
You will be able to see different types of attributes which are provided by aws.
Instead of using third party lib, use Java 11 isBlank()
String str1 = "";
String str2 = " ";
Character ch = '\u0020';
String str3 =ch+" "+ch;
System.out.println(str1.isEmpty()); //true
System.out.println(str2.isEmpty()); //false
System.out.println(str3.isEmpty()); //false
System.out.println(str1.isBlank()); //true
System.out.println(str2.isBlank()); //true
System.out.println(str3.isBlank()); //true
I've made small modifications to @paul-H code, such that you can set the font size for the x/y axes and legend independently. Hope it helps:
import numpy as np
import matplotlib.pyplot as plt
import seaborn as sns
x = np.random.normal(size=37)
y = np.random.lognormal(size=37)
# defaults
sns.set()
fig, ax = plt.subplots()
ax.plot(x, y, marker='s', linestyle='none', label='small')
ax.legend(loc='upper left', fontsize=20,bbox_to_anchor=(0, 1.1))
ax.set_xlabel('X_axi',fontsize=20);
ax.set_ylabel('Y_axis',fontsize=20);
plt.show()
This is the output:
Start here http://docs.python.org/tutorial/datastructures.html#dictionaries
Then here http://docs.python.org/library/stdtypes.html#mapping-types-dict
Then here http://docs.python.org/library/stdtypes.html#dict.get
characters.get( key, default )
key is a character
default is 0
If the character is in the dictionary, characters
, you get the dictionary object.
If not, you get 0.
Syntax:
get(key[, default])
Return the value for key if key is in the dictionary, else default. If default is not given, it defaults to
None
, so that this method never raises aKeyError
.
A simpler (in my view) solution is to create a new dictionary and update it with the contents of the old one:
my_dict={'a':1}
my_copy = {}
my_copy.update( my_dict )
my_dict['a']=2
my_dict['a']
Out[34]: 2
my_copy['a']
Out[35]: 1
The problem with this approach is it may not be 'deep enough'. i.e. is not recursively deep. good enough for simple objects but not for nested dictionaries. Here is an example where it may not be deep enough:
my_dict1={'b':2}
my_dict2={'c':3}
my_dict3={ 'b': my_dict1, 'c':my_dict2 }
my_copy = {}
my_copy.update( my_dict3 )
my_dict1['b']='z'
my_copy
Out[42]: {'b': {'b': 'z'}, 'c': {'c': 3}}
By using Deepcopy() I can eliminate the semi-shallow behavior, but I think one must decide which approach is right for your application. In most cases you may not care, but should be aware of the possible pitfalls... final example:
import copy
my_copy2 = copy.deepcopy( my_dict3 )
my_dict1['b']='99'
my_copy2
Out[46]: {'b': {'b': 'z'}, 'c': {'c': 3}}
The web site likely uses cookies to store your session information. When you run
curl --user user:pass https://xyz.com/a #works ok
curl https://xyz.com/b #doesn't work
curl
is run twice, in two separate sessions. Thus when the second command runs, the cookies set by the 1st command are not available; it's just as if you logged in to page a
in one browser session, and tried to access page b
in a different one.
What you need to do is save the cookies created by the first command:
curl --user user:pass --cookie-jar ./somefile https://xyz.com/a
and then read them back in when running the second:
curl --cookie ./somefile https://xyz.com/b
Alternatively you can try downloading both files in the same command, which I think will use the same cookies.
You can use netstat command
netstat --listen
To display open ports and established TCP connections,
netstat -vatn
To display only open UDP ports try the following command:
netstat -vaun