country.code
is not in your group by
statement, and is not an aggregate (wrapped in an aggregate function).
If your are going to replace all of the connection strings with news ones for production environment, you can simply replace all connection strings with production ones using this syntax:
<configuration xmlns:xdt="http://schemas.microsoft.com/XML-Document-Transform">
<connectionStrings xdt:Transform="Replace">
<!-- production environment config --->
<add name="ApplicationServices" connectionString="data source=.\SQLEXPRESS;Integrated Security=SSPI;AttachDBFilename=|DataDirectory|\aspnetdb.mdf;User Instance=true"
providerName="System.Data.SqlClient" />
<add name="Testing1" connectionString="Data Source=test;Initial Catalog=TestDatabase;Integrated Security=True"
providerName="System.Data.SqlClient" />
</connectionStrings>
....
Information for this answer are brought from this answer and this blog post.
notice: As others explained already, this setting will apply only when application publishes not when running/debugging it (by hitting F5).
The closest thing in C# 3.0, is that you can use a constructor to initialize properties:
Stuff.Elements.Foo foo = new Stuff.Elements.Foo() {Name = "Bob Dylan", Age = 68, Location = "On Tour", IsCool = true}
whats actually wrong with:
input { border: 1px solid #f00; }
do you only want it on inputs with errors? in that case give the input a class of error...
input.error { border: 1px solid #f00; }
(this question is a duplicate of In chart.js, Is it possible to hide x-axis label/text of bar chart if accessing from mobile?) They added the option, 2.1.4 (and maybe a little earlier) has it
var myLineChart = new Chart(ctx, {
type: 'line',
data: data,
options: {
scales: {
xAxes: [{
ticks: {
display: false
}
}]
}
}
}
You can simply do it with train_test_split()
method available in Scikit learn:
from sklearn.model_selection import train_test_split
train, test = train_test_split(X, test_size=0.25, stratify=X['YOUR_COLUMN_LABEL'])
I have also prepared a short GitHub Gist which shows how stratify
option works:
https://gist.github.com/SHi-ON/63839f3a3647051a180cb03af0f7d0d9
Make sure you import csv file using Pandas
import pandas as pd
condition = pd.isnull(data[i][j])
For all the good answers above, I'm just going to give a concrete example in Java servlet HttpSession
class. Hope this example helps to clarify some question you may still have.
If you need to store and retrieve values for a session, you use setAttribute
(String, Object), and getAttribute
(String, Object) method. So for a boolean value, you are forced to use the Boolean class if you want to store it in an http session.
HttpSession sess = request.getSession(false);
Boolean isAdmin = (Boolean) sess.getAttribute("admin");
if (! isAdmin) ...
The last line will cause a NullPointerException
if the attribute values is not set. (which is the reason led me to this post). So the 3 logic state is here to stay, whether you prefer to use it or not.
You can use the getimagesize
function like this:
list($width, $height) = getimagesize('path to image');
echo "width: " . $width . "<br />";
echo "height: " . $height;
If you want the accepted answer to work in JQuery 3 change the code like this:
var scrollItems = menuItems.map(function () {
var id = $(this).attr("href");
try {
var item = $(id);
if (item.length) {
return item;
}
} catch {}
});
I also added a try-catch to prevent javascript from crashing if there is no element by that id. Feel free to improve it even more ;)
Largely based on the accepted answer, but with a few tweaks to fit better the definitions taught in some courses:
If you want to get the most recent changed file also including any subdirectories you can do it with this little oneliner:
find . -type f -exec stat -c '%Y %n' {} \; | sort -nr | awk -v var="1" 'NR==1,NR==var {print $0}' | while read t f; do d=$(date -d @$t "+%b %d %T %Y"); echo "$d -- $f"; done
If you want to do the same not for changed files, but for accessed files you simple have to change the
%Y parameter from the stat command to %X. And your command for most recent accessed files looks like this:
find . -type f -exec stat -c '%X %n' {} \; | sort -nr | awk -v var="1" 'NR==1,NR==var {print $0}' | while read t f; do d=$(date -d @$t "+%b %d %T %Y"); echo "$d -- $f"; done
For both commands you also can change the var="1" parameter if you want to list more than just one file.
Swift 3
var myNum = 8.09
myNum.rounded() // result = 8 and leaves myNum unmodified
you may try the TO_CHAR function to convert the result
e.g.
SELECT TO_CHAR(92, '99.99') AS RES FROM DUAL
SELECT TO_CHAR(92.258, '99.99') AS RES FROM DUAL
Hope it helps
TL;DR:
The ActionListener
s (there can be multiple) execute in the order they were registered BEFORE the action
Long Answer:
A business action
typically invokes an EJB service and if necessary also sets the final result and/or navigates to a different view
if that is not what you are doing an actionListener
is more appropriate i.e. for when the user interacts with the components, such as h:commandButton
or h:link
they can be handled by passing the name of the managed bean method in actionListener
attribute of a UI Component or to implement an ActionListener
interface and pass the implementation class name to actionListener
attribute of a UI Component.
you want after days find date this code try..
public Date getToDateAfterDays(Integer day) {
Date nowdate = new Date();
Calendar cal = Calendar.getInstance();
cal.setTime(nowdate);
cal.add(Calendar.DATE, day);
return cal.getTime();
}
This works reliably for me. Cell borders and height added for effect and clarity:
<table>_x000D_
<tr>_x000D_
<td style="text-align:right; border: thin solid; height:50px">Some label:</td>_x000D_
<td style="border: thin solid;">_x000D_
<input type="checkbox" checked="checked" id="chk1" style="cursor:pointer; "><label for="chk1" style="margin-top:auto; margin-left:5px; margin-bottom:auto; cursor:pointer;">Check Me</label>_x000D_
</td>_x000D_
</tr>_x000D_
</table>
_x000D_
#mongodump using sh script
#!/bin/bash
TIMESTAMP=`date +%F-%H%M`
APP_NAME="folder_name"
BACKUPS_DIR="/xxxx/tst_file_bcup/$APP_NAME"
BACKUP_NAME="$APP_NAME-$TIMESTAMP"
/usr/bin/mongodump -h 127.0.0.1 -d <dbname> -o $BACKUPS_DIR/$APP_NAME/$BACKUP_NAME
tar -zcvf $BACKUPS_DIR/$BACKUP_NAME.tgz $BACKUPS_DIR/$APP_NAME/$BACKUP_NAME
rm -rf /home/wowza_analytics_bcup/wowza_analytics/wowza_analytics
### 7 days old backup delete automaticaly using given command
find /home/wowza_analytics_bcup/wowza_analytics/ -mindepth 1 -mtime +7 -delete
On the side note, here is how the various plyr
functions correspond to the base *apply
functions (from the intro to plyr document from the plyr webpage http://had.co.nz/plyr/)
Base function Input Output plyr function
---------------------------------------
aggregate d d ddply + colwise
apply a a/l aaply / alply
by d l dlply
lapply l l llply
mapply a a/l maply / mlply
replicate r a/l raply / rlply
sapply l a laply
One of the goals of plyr
is to provide consistent naming conventions for each of the functions, encoding the input and output data types in the function name. It also provides consistency in output, in that output from dlply()
is easily passable to ldply()
to produce useful output, etc.
Conceptually, learning plyr
is no more difficult than understanding the base *apply
functions.
plyr
and reshape
functions have replaced almost all of these functions in my every day use. But, also from the Intro to Plyr document:
Related functions
tapply
andsweep
have no corresponding function inplyr
, and remain useful.merge
is useful for combining summaries with the original data.
The AS
in this case is an optional keyword defined in ANSI SQL 92 to define a <<correlation name>
,commonly known as alias for a table.
<table reference> ::= <table name> [ [ AS ] <correlation name> [ <left paren> <derived column list> <right paren> ] ] | <derived table> [ AS ] <correlation name> [ <left paren> <derived column list> <right paren> ] | <joined table> <derived table> ::= <table subquery> <derived column list> ::= <column name list> <column name list> ::= <column name> [ { <comma> <column name> }... ] Syntax Rules 1) A <correlation name> immediately contained in a <table refer- ence> TR is exposed by TR. A <table name> immediately contained in a <table reference> TR is exposed by TR if and only if TR does not specify a <correlation name>.
It seems a best practice NOT to use the AS
keyword for table aliases as it is not supported by a number of commonly used databases.
dtAll = dtOne.Copy();
dtAll.Merge(dtTwo,true);
The parameter TRUE preserve the changes.
For more details refer to MSDN.
This may help you:
I have the same exception in my project. After searching while I found that I am missing the @Service annotation to the class where I am implementing the interface which I want to @Autowired.
In your code you can add the @Service annotation to MailManager class.
@Transactional
@Service
public class MailManager extends AbstractManager implements IMailManager {
One point is that it may be easier to do:
$("<div class=foo id=bar style='color:white;bgcolor:blue;font-size:12pt'></div>")
Then to do all of that with jquery calls.
In your ipython_config.py
file, search for the following lines
# c.InteractiveShellApp.matplotlib = None
and
# c.InteractiveShellApp.pylab = None
and uncomment them. Then, change None
to the backend that you're using (I use 'qt4'
) and save the file. Restart IPython, and matplotlib and pylab should be loaded - you can use the dir()
command to verify which modules are in the global namespace.
LinkedHashMap
is precisely what you're looking for.
It is exactly like HashMap
, except that when you iterate over it, it presents the items in the insertion order.
in addition to UseSsl, you have to include smtp port 587 to make it work.
Send-MailMessage -SmtpServer smtp.gmail.com -Port 587 -Credential $credential -UseSsl -From '[email protected]' -To '[email protected]' -Subject 'TEST'
this worked for me:
JS:
$('#fileinput').trigger('click');
HTML:
<div class="hiddenfile">
<input name="upload" type="file" id="fileinput"/>
</div>
CSS:
.hiddenfile {
width: 0px;
height: 0px;
overflow: hidden;
}
>>>Another one that works Cross-Browser:<<<
The Idea is that you overlay an invisible huge "Browse" button over your custom button. So when the user clicks your custom button, he's actually clicking on the "Browse" button of the native input field.
JS Fiddle: http://jsfiddle.net/5Rh7b/
HTML:
<div id="mybutton">
<input type="file" id="myfile" name="upload"/>
Click Me!
</div>
CSS:
div#mybutton {
/* IMPORTANT STUFF */
overflow: hidden;
position: relative;
/* SOME STYLING */
width: 50px;
height: 28px;
border: 1px solid green;
font-weight: bold
background: red;
}
div#mybutton:hover {
background: green;
}
input#myfile {
height: 30px;
cursor: pointer;
position: absolute;
top: 0px;
right: 0px;
font-size: 100px;
z-index: 2;
opacity: 0.0; /* Standard: FF gt 1.5, Opera, Safari */
filter: alpha(opacity=0); /* IE lt 8 */
-ms-filter: "alpha(opacity=0)"; /* IE 8 */
-khtml-opacity: 0.0; /* Safari 1.x */
-moz-opacity: 0.0; /* FF lt 1.5, Netscape */
}
JavaScript:
$(document).ready(function() {
$('#myfile').change(function(evt) {
alert($(this).val());
});
});
I found another way you can do it was to have the source and property strongly typed and explicitly infer the input for the lambda. Not sure if that is correct terminology but here is the result.
public static RouteValueDictionary GetInfo<T,P>(this HtmlHelper html, Expression<Func<T, P>> action) where T : class
{
var expression = (MemberExpression)action.Body;
string name = expression.Member.Name;
return GetInfo(html, name);
}
And then call it like so.
GetInfo((User u) => u.UserId);
and voila it works.
Try this:
$(this).hide("slide", { direction: "left" }, 1000);
$(this).show("slide", { direction: "left" }, 1000);
There is a a new option as well: get it via pip! There is a package pypiwin32 with wheels available, so you can just install with: pip install pypiwin32
!
Edit: Per comment from @movermeyer, the main project now publishes wheels at pywin32, and so can be installed with pip install pywin32
Does it work if you remove the AddType line? I'm not quite sure why that's relevant to turning magic quotes off.
If PHP isn't running under mod_php, htaccess won't work. Does it work as a CGI?
This is one for your hosting company really.
First)
Second)
I'm not sure if PyQt does have a script like this, but after you install PySide there is a script in pythons script directory "uic.py". You can use this script to convert a .ui file to a .py file:
python uic.py input.ui -o output.py -x
Use the retainAll()
method of Set
:
Set<String> s1;
Set<String> s2;
s1.retainAll(s2); // s1 now contains only elements in both sets
If you want to preserve the sets, create a new set to hold the intersection:
Set<String> intersection = new HashSet<String>(s1); // use the copy constructor
intersection.retainAll(s2);
The javadoc of retainAll()
says it's exactly what you want:
Retains only the elements in this set that are contained in the specified collection (optional operation). In other words, removes from this set all of its elements that are not contained in the specified collection. If the specified collection is also a set, this operation effectively modifies this set so that its value is the intersection of the two sets.
All implementation for topViewController here are not fully supporting cases when you have UINavigationController
or UITabBarController
, for those two you need a bit different handling:
For UITabBarController
and UINavigationController
you need a different implementation.
Here is code I'm using to get topMostViewController:
protocol TopUIViewController {
func topUIViewController() -> UIViewController?
}
extension UIWindow : TopUIViewController {
func topUIViewController() -> UIViewController? {
if let rootViewController = self.rootViewController {
return self.recursiveTopUIViewController(from: rootViewController)
}
return nil
}
private func recursiveTopUIViewController(from: UIViewController?) -> UIViewController? {
if let topVC = from?.topUIViewController() { return recursiveTopUIViewController(from: topVC) ?? from }
return from
}
}
extension UIViewController : TopUIViewController {
@objc open func topUIViewController() -> UIViewController? {
return self.presentedViewController
}
}
extension UINavigationController {
override open func topUIViewController() -> UIViewController? {
return self.visibleViewController
}
}
extension UITabBarController {
override open func topUIViewController() -> UIViewController? {
return self.selectedViewController ?? presentedViewController
}
}
You should be able to set the className property of the element. You could do a += to append it.
Escape single quote with an additional single as Kirtan pointed out
And if you are trying to execute a dynamic sql (which is not a good idea in the first place) via sp_executesql then the below code would work for you
sp_executesql N'INSERT INTO SomeTable (SomeColumn) VALUES (''John''''s'')'
I found a good way to do this with using a function and basic code. This is a code that accepts a string and counts the number of capital letters, lowercase letters and also 'other'. Other is classed as a space, punctuation mark or even Japanese and Chinese characters.
def check(count):
lowercase = 0
uppercase = 0
other = 0
low = 'a','b','c','d','e','f','g','h','i','j','k','l','m','n','o','p','q','r','s','t','u','v','w','x','y','z'
upper = 'A','B','C','D','E','F','G','H','I','J','K','L','M','N','O','P','Q','R','S','T','U','V','W','X','Y','Z'
for n in count:
if n in low:
lowercase += 1
elif n in upper:
uppercase += 1
else:
other += 1
print("There are " + str(lowercase) + " lowercase letters.")
print("There are " + str(uppercase) + " uppercase letters.")
print("There are " + str(other) + " other elements to this sentence.")
You can easily do this though,
df.apply(LabelEncoder().fit_transform)
EDIT2:
In scikit-learn 0.20, the recommended way is
OneHotEncoder().fit_transform(df)
as the OneHotEncoder now supports string input. Applying OneHotEncoder only to certain columns is possible with the ColumnTransformer.
EDIT3:
Since this answer is over a year ago, and generated many upvotes (including a bounty), I should probably extend this further.
For inverse_transform and transform, you have to do a little bit of hack.
from collections import defaultdict
d = defaultdict(LabelEncoder)
With this, you now retain all columns LabelEncoder
as dictionary.
# Encoding the variable
fit = df.apply(lambda x: d[x.name].fit_transform(x))
# Inverse the encoded
fit.apply(lambda x: d[x.name].inverse_transform(x))
# Using the dictionary to label future data
df.apply(lambda x: d[x.name].transform(x))
MOAR EDIT:
Using Neuraxle's FlattenForEach
step, it's possible to do this as well to use the same LabelEncoder
on all the flattened data at once:
FlattenForEach(LabelEncoder(), then_unflatten=True).fit_transform(df)
For using separate LabelEncoder
s depending for your columns of data, or if only some of your columns of data needs to be label-encoded and not others, then using a ColumnTransformer
is a solution that allows for more control on your column selection and your LabelEncoder instances.
You use return false to prevent something from happening. So if you have a script running on submit then return false will prevent the submit from working.
If you don't want to use Powershell, this answer is a variation on 8kb's great answer. The only difference is that instead of selecting CSV as the output format, select Tab Delimited. This way if there are commas in your data, it won't skip cells in Excel. Also, if you have Excel's default delimiter set to tabs, you can simply do a copy-all of the SSMS query results (CTRL-A, CTRL-C) and paste into Excel (no need to save as a file and import to Excel):
Now you can execute your query, then do a CTRL-A to select all the results, then CTRL-C to copy to clipboard, then switch to Excel 2013 (may work in 2007 too, not sure) and paste -- assuming Excel's default delimiter is set to tab.
http://en.wikipedia.org/wiki/Tempuri
tempuri.org is the default namespace URI used by Microsoft development products, like Visual Studio.
Thanks to unutbu for the explanation. By default numpy.cov calculates the sample covariance. To obtain the population covariance you can specify normalisation by the total N samples like this:
Covariance = numpy.cov(a, b, bias=True)[0][1]
print(Covariance)
or like this:
Covariance = numpy.cov(a, b, ddof=0)[0][1]
print(Covariance)
If you know to get the root directory:
string rootPath = Path.GetPathRoot(Application.StartupPath)
Make sure you specify pass header=None
and add usecols=[3,6]
for the 4th and 7th columns.
Even this will work nicely
REPT(0,2-LEN(F2)&F2
where 2 is total number of digits, for 0 ~ 9 -> it will display 00 to 09 rest nothing will be added.
1:
[{value:5}, {value:10}].reduce((previousValue, currentValue) => { return {value: previousValue.value + currentValue.value}})
>> Object {value: 15}
2:
[{value:5}, {value:10}].map(item => item.value).reduce((previousValue, currentValue) => {return previousValue + currentValue })
>> 15
3:
[{value:5}, {value:10}].reduce(function (previousValue, currentValue) {
return {value: previousValue.value + currentValue.value};
})
>> Object {value: 15}
You could try to split on (?<=\D)(?=\d)|(?<=\d)(?=\D)
, like:
str.split("(?<=\\D)(?=\\d)|(?<=\\d)(?=\\D)");
It matches positions between a number and not-a-number (in any order).
(?<=\D)(?=\d)
- matches a position between a non-digit (\D
) and a digit (\d
)(?<=\d)(?=\D)
- matches a position between a digit and a non-digit.A function cannot be called unless it was defined in the same file or one loaded before the attempt to call it.
A function cannot be called unless it is in the same or greater scope then the one trying to call it.
You declare function fn1
in first.js, and then in second you can just have fn1();
1.js:
function fn1 () {
alert();
}
2.js:
fn1();
index.html :
<script type="text/javascript" src="1.js"></script>
<script type="text/javascript" src="2.js"></script>
Distances to the source of iBeacon-formatted advertisement packets are estimated from the signal path attenuation calculated by comparing the measured received signal strength to the claimed transmit power which the transmitter is supposed to encode in the advertising data.
A path loss based scheme like this is only approximate and is subject to variation with things like antenna angles, intervening objects, and presumably a noisy RF environment. In comparison, systems really designed for distance measurement (GPS, Radar, etc) rely on precise measurements of propagation time, in same cases even examining the phase of the signal.
As Jiaru points out, 160 ft is probably beyond the intended range, but that doesn't necessarily mean that a packet will never get through, only that one shouldn't expect it to work at that distance.
preventDefault
is a widespread standard; using an adhoc every time you want to be compliant with old IE versions is cumbersome, better to use a polyfill:
if (typeof Event.prototype.preventDefault === 'undefined') {
Event.prototype.preventDefault = function (e, callback) {
this.returnValue = false;
};
}
This will modify the prototype of the Event and add this function, a great feature of javascript/DOM in general. Now you can use e.preventDefault
with no problem.
Why don't you pass the entire array and process it as needed inside the function?
var x = [ 'p0', 'p1', 'p2' ];
call_me(x);
function call_me(params) {
for (i=0; i<params.length; i++) {
alert(params[i])
}
}
This will work perfectly.
@Override
public void onResume() {
super.onResume();
Window window = getDialog().getWindow();
if(window == null) return;
WindowManager.LayoutParams params = window.getAttributes();
params.width = 400;
params.height = 400;
window.setAttributes(params);
}
I wrote a blog post that explains how to access an unpublished port of a container In different ways depending on the needs:
The post also goes through a brief introduction of both how port mapping works, the difference between exposing and publishing a port, and what is socat.
Here’s the link: https://lmcaraig.com/accessing-an-unpublished-port-of-a-running-docker-container
on my pc I had the same problem and it was because in properties -> security I didn't have the ownership of the file...
If you only need a current value and above options don't work, you can use it this way.
$('#input').on('change', () => {
const current = document.getElementById('input').value;
}
I like to use such static methods:
$result = $purchases_repository->matching(
Criteria::create()->where(
Criteria::expr()->gt('prize', 200)
)
);
Of course, you can push logic when it is 1 condition, but when you have more conditions it is better to divide it into fragments, configure and pass it to the method:
$expr = Criteria::expr();
$criteria = Criteria::create();
$criteria->where($expr->gt('prize', 200));
$criteria->orderBy(['prize' => Criteria::DESC]);
$result = $purchases_repository->matching($criteria);
A really good way to make a tooltip is described here: Simple D3 tooltip example
You have to append a div
var tooltip = d3.select("body")
.append("div")
.style("position", "absolute")
.style("z-index", "10")
.style("visibility", "hidden")
.text("a simple tooltip");
Then you can just toggle it using
.on("mouseover", function(){return tooltip.style("visibility", "visible");})
.on("mousemove", function(){return tooltip.style("top",
(d3.event.pageY-10)+"px").style("left",(d3.event.pageX+10)+"px");})
.on("mouseout", function(){return tooltip.style("visibility", "hidden");});
d3.event.pageX
/ d3.event.pageY
is the current mouse coordinate.
If you want to change the text you can use tooltip.text("my tooltip text");
Date long getTime()
returns the number of milliseconds since January 1, 1970, 00:00:00 GMT
represented by this Date object.
//test if date1 is before date2
if(date1.getTime() < date2.getTime()) {
....
}
Since Git 2.14 (Q3 2017), you don't have to go into each submodule to do a git reset
(as in git submodule foreach git reset --hard
)
That is because git reset itself knows now how to recursively go into submodules.
See commit 35b96d1 (21 Apr 2017), and commit f2d4899, commit 823bab0, commit cd279e2 (18 Apr 2017) by Stefan Beller (stefanbeller
).
(Merged by Junio C Hamano -- gitster
-- in commit 5f074ca, 29 May 2017)
builtin/reset: add --recurse-submodules switch
git-reset
is yet another working tree manipulator, which should be taught about submodules.
When a user uses git-reset and requests to recurse into submodules, this will reset the submodules to the object name as recorded in the superproject, detaching the HEADs.
Warning: the difference between:
git reset --hard --recurse-submodule
andgit submodule foreach git reset --hard
is that the former will also reset your main parent repo working tree, as the latter would only reset the submodules working tree.
So use with caution.
Element is not supported in IE8 out of the box you have to do some work to make IE8 accept custom tags.
One advantage of using an attribute over an element is that you can apply multiple directives to the same DOM node. This is particularly handy for things like form controls where you can highlight, disable, or add labels etc. with additional attributes without having to wrap the element in a bunch of tags.
Actually, 37 would work pretty well! z := 37 * x can be computed as y := x + 8 * x; z := x + 4 * y
. Both steps correspond to one LEA x86 instructions, so this is extremely fast.
In fact, multiplication with the even-larger prime 73 could be done at the same speed by setting y := x + 8 * x; z := x + 8 * y
.
Using 73 or 37 (instead of 31) might be better, because it leads to denser code: The two LEA instructions only take 6 bytes vs. the 7 bytes for move+shift+subtract for the multiplication by 31. One possible caveat is that the 3-argument LEA instructions used here became slower on Intel's Sandy bridge architecture, with an increased latency of 3 cycles.
Moreover, 73 is Sheldon Cooper's favorite number.
If you aim to have the "circle" maintain a visual aspect ratio of 1 no matter what the data coordinates are, you could use the scatter() method. http://matplotlib.org/1.3.1/api/pyplot_api.html#matplotlib.pyplot.scatter
import matplotlib.pyplot as plt
x = [1, 2, 3, 4, 5]
y = [10, 20, 30, 40, 50]
r = [100, 80, 60, 40, 20] # in points, not data units
fig, ax = plt.subplots(1, 1)
ax.scatter(x, y, s=r)
fig.show()
Is there any advantage in creating a temporary file in a more careful way
The temporary files are usually created in the temporary directory (such as /tmp
) where all other users and processes has read and write access (any other script can create the new files there). Therefore the script should be careful about creating the files such as using with the right permissions (e.g. read only for the owner, see: help umask
) and filename should be be not easily guessed (ideally random). Otherwise if the filenames aren't unique, it can create conflict with the same script ran multiple times (e.g. race condition) or some attacker could either hijack some sensitive information (e.g. when permissions are too open and filename is easy to guess) or create/replacing the file with their own version of the code (like replacing the commands or SQL queries depending on what is being stored).
You could use the following approach to create the temporary directory:
TMPDIR=".${0##*/}-$$" && mkdir -v "$TMPDIR"
or temporary file:
TMPFILE=".${0##*/}-$$" && touch "$TMPFILE"
However it is still predictable and not considered safe.
As per man mktemp
, we can read:
Traditionally, many shell scripts take the name of the program with the pid as a suffix and use that as a temporary file name. This kind of naming scheme is predictable and the race condition it creates is easy for an attacker to win.
So to be safe, it is recommended to use mktemp
command to create unique temporary file or directory (-d
).
Technically, there are two issues with the code posted by BGM:
the adding of the handlers in the WaitForPageLoad method is potentially too late. The navigation is initiated before the handlers are added which means that in very rare cases where the browser already has the page it may complete before the handlers are added in which case you will miss the event and sit forever waiting.
The solution is to add the handlers before the navigation starts and remove them after the navigation completed
This means the WaitForPageLoad method needs to be split into two methods. One is called before initiating the navigation. It should set the handlers. The second part does the ReadyState monitoring and cleans up when 'Ready'.
good programming practices is to add a timeout so that a lost (or crashed, or looping) browser doesn't make your code wait forever for the document completed even
For paths greater than 260:
you can use:
Get-ChildItem | Where-Object {$_.FullName.Length -gt 260}
Example on 14 chars:
To view the paths lengths:
Get-ChildItem | Select-Object -Property FullName, @{Name="FullNameLength";Expression={($_.FullName.Length)}
Get paths greater than 14:
Get-ChildItem | Where-Object {$_.FullName.Length -gt 14}
Screenshot:
For filenames greater than 10:
Get-ChildItem | Where-Object {$_.PSChildName.Length -gt 10}
Screenshot:
Here are my two cents -- in the case if one wants to be sh
-portable, not just bash
-specific ( the solution is not too efficient, though, as it starts an external program -- sed
):
quote.sh
( or just quote
) somewhere on your PATH
:# this works with standard input (stdin) quote() { echo -n "'" ; sed 's/\(['"'"']['"'"']*\)/'"'"'"\1"'"'"'/g' ; echo -n "'" } case "$1" in -) quote ;; *) echo "usage: cat ... | quote - # single-quotes input for Bourne shell" 2>&1 ;; esac
An example:
$ echo -n "G'day, mate!" | ./quote.sh - 'G'"'"'day, mate!'
And, of course, that converts back:
$ echo 'G'"'"'day, mate!' G'day, mate!
Explanation: basically we have to enclose the input with quotes '
, and then also replace any single quote within with this micro-monster: '"'"'
( end the opening quote with a pairing '
, escape the found single quote by wrapping it with double quotes -- "'"
, and then finally issue a new opening single quote '
, or in pseudo-notation : ' + "'" + ' == '"'"'
)
One standard way to do that would be to use sed
with the following substitution command:
s/\(['][']*\)/'"\1"'/g
One small problem, though, is that in order to use that in shell one needs to escape all these single quote characters in the sed expression itself -- what leads to something like
sed 's/\(['"'"']['"'"']*\)/'"'"'"\1"'"'"'/g'
( and one good way to build this result is to feed the original expression s/\(['][']*\)/'"\1"'/g
to Kyle Rose' or George V. Reilly's scripts ).
Finally, it kind of makes sense to expect the input to come from stdin
-- since passing it through command-line arguments could be already too much trouble.
( Oh, and may be we want to add a small help message so that the script does not hang when someone just runs it as ./quote.sh --help
wondering what it does. )
in /usr/bin
type
sudo ln -s -f g++-4.2 g++
sudo ln -s -f gcc-4.2 gcc
That should do it.
If you have the same method name in two different classes and you just want to run one of them, this works:
pytest tests.py -k 'TestClassName and test_method_name'
This is a bit old, but I guess what you want is: ps -o pid -C PROCESS_NAME, for example:
ps -o pid -C bash
EDIT: Dependening on the sort of output you expect, pgrep
would be more elegant. This, in my knowledge, is Linux specific and result in similar output as above. For example:
pgrep bash
There is an easier way than the one written by CommonsWare. Just create a drawable resource that specifies the way the EditText
will be drawn:
<?xml version="1.0" encoding="utf-8"?>
<!-- res/drawable/rounded_edittext.xml -->
<shape xmlns:android="http://schemas.android.com/apk/res/android"
android:shape="rectangle"
android:padding="10dp">
<solid android:color="#FFFFFF" />
<corners
android:bottomRightRadius="15dp"
android:bottomLeftRadius="15dp"
android:topLeftRadius="15dp"
android:topRightRadius="15dp" />
</shape>
Then, just reference this drawable in your layout:
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:orientation="vertical"
android:layout_width="fill_parent"
android:layout_height="fill_parent">
<EditText
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:padding="5dip"
android:background="@drawable/rounded_edittext" />
</LinearLayout>
You will get something like:
Based on Mark's comment, I want to add the way you can create different states for your EditText
:
<?xml version="1.0" encoding="utf-8"?>
<!-- res/drawable/rounded_edittext_states.xml -->
<selector xmlns:android="http://schemas.android.com/apk/res/android">
<item
android:state_pressed="true"
android:state_enabled="true"
android:drawable="@drawable/rounded_focused" />
<item
android:state_focused="true"
android:state_enabled="true"
android:drawable="@drawable/rounded_focused" />
<item
android:state_enabled="true"
android:drawable="@drawable/rounded_edittext" />
</selector>
These are the states:
<?xml version="1.0" encoding="utf-8"?>
<!-- res/drawable/rounded_edittext_focused.xml -->
<shape xmlns:android="http://schemas.android.com/apk/res/android"
android:shape="rectangle" android:padding="10dp">
<solid android:color="#FFFFFF"/>
<stroke android:width="2dp" android:color="#FF0000" />
<corners
android:bottomRightRadius="15dp"
android:bottomLeftRadius="15dp"
android:topLeftRadius="15dp"
android:topRightRadius="15dp" />
</shape>
And... now, the EditText
should look like:
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:orientation="vertical"
android:layout_width="fill_parent"
android:layout_height="fill_parent">
<EditText
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:text="@string/hello"
android:background="@drawable/rounded_edittext_states"
android:padding="5dip" />
</LinearLayout>
Try float
property. Here's an example: http://jsfiddle.net/mLmHR/
All of them need to be vertically aligned within the div
Aligned how? Tops of the images aligned with the top of the text?
One of the images needs to be absolute positioned within the div.
Absolutely positioned relative to the DIV? Perhaps you could sketch out what you're looking for...?
fd has described the steps for absolute positioning, as well as adjusting the display of the H1
element such that images will appear inline with it. To that, i'll add that you can align the images by use of the vertical-align
style:
#header h1 { display: inline; }
#header img { vertical-align: middle; }
...this would put the header and images together, with top edges aligned. Other alignment options exist; see the documentation. You might also find it beneficial to drop the DIV and move the images inside the H1
element - this provides semantic value to the container, and removes the need to adjust the display of the H1
:
<h1 id=header">
<img src=".." ></img>
testing...
<img src="..."></img>
</h1>
Testing ErrorLevel
works for console applications, but as hinted at by dmihailescu, this won't work if you're trying to run a windowed application (e.g. Win32-based) from a command prompt. A windowed application will run in the background, and control will return immediately to the command prompt (most likely with an ErrorLevel
of zero to indicate that the process was created successfully). When a windowed application eventually exits, its exit status is lost.
Instead of using the console-based C++ launcher mentioned elsewhere, though, a simpler alternative is to start a windowed application using the command prompt's START /WAIT
command. This will start the windowed application, wait for it to exit, and then return control to the command prompt with the exit status of the process set in ErrorLevel
.
start /wait something.exe
echo %errorlevel%
You can pass in the element to the controller, just like the scope:
function someControllerFunc($scope, $element){
}
I used this before..
public static Bitmap myblur(Bitmap image, Context context) {
final float BITMAP_SCALE = 0.4f;
final float BLUR_RADIUS = 7.5f;
int width = Math.round(image.getWidth() * BITMAP_SCALE);
int height = Math.round(image.getHeight() * BITMAP_SCALE);
Bitmap inputBitmap = Bitmap.createScaledBitmap(image, width, height, false);
Bitmap outputBitmap = Bitmap.createBitmap(inputBitmap);
RenderScript rs = RenderScript.create(context);
ScriptIntrinsicBlur theIntrinsic = ScriptIntrinsicBlur.create(rs, Element.U8_4(rs));
Allocation tmpIn = Allocation.createFromBitmap(rs, inputBitmap);
Allocation tmpOut = Allocation.createFromBitmap(rs, outputBitmap);
theIntrinsic.setRadius(BLUR_RADIUS);
theIntrinsic.setInput(tmpIn);
theIntrinsic.forEach(tmpOut);
tmpOut.copyTo(outputBitmap);
return outputBitmap;
}
you can use this.
<html>
<head>
<title>Demo</title>
<script>
function passBtnID(id) {
alert("You Pressed: " + id);
}
</script>
</head>
<body>
<button id="mybtn1" onclick="passBtnID('mybtn1')">Press me</button><br><br>
<button id="mybtn2" onclick="passBtnID('mybtn2')">Press me</button>
</body>
</html>
Here's an online ViewState decoder:
http://ignatu.co.uk/ViewStateDecoder.aspx
Edit: Unfortunatey, the above link is dead - here's another ViewState decoder (from the comments):
First of, suppose you have two different views in storyboard, and you want to navigate from one screen to another, so follow this steps:
1). Define all your views with class file and also storyboard id in identity inspector.
2). Make sure you add a navigation controller to the first view. Select it in the Storyboard and then Editor >Embed In > Navigation Controller
3). In your first class, import the "secondClass.h"
#import "ViewController.h
#import "secondController.h"
4). Add this command in the IBAction that has to perform the segue
secondController *next=[self.storyboard instantiateViewControllerWithIdentifier:@"second"];
[self.navigationController pushViewController:next animated:YES];
5). @"second"
is secondview controller class, storyboard id.
It's not necessary to rewrite everything. I recommend doing this instead:
Post this inside your .m file of your custom cell.
- (void)layoutSubviews {
[super layoutSubviews];
self.imageView.frame = CGRectMake(0,0,32,32);
}
This should do the trick nicely. :]
If you organize your test cases, that is, follow the same organization like the actual code and also use relative imports for modules in the same package, you can also use the following command format:
python -m unittest mypkg.tests.test_module.TestClass.test_method
# In your case, this would be:
python -m unittest testMyCase.MyCase.testItIsHot
Python 3 documentation for this: Command-Line Interface
For someone who are more curious
class Testt {
static void Display(String s , String varname){
System.out.println(varname + " variable data = "+ s + " :: address hashmap = " + s.hashCode());
}
static void changeto(String s , String t){
System.out.println("entered function");
Display(s , "s");
s = t ;
Display(s,"s");
System.out.println("exiting function");
}
public static void main(String args[]){
String s = "hi" ;
Display(s,"s");
changeto(s,"bye");
Display(s,"s");
}
}
Now by running this above code you can see how address
hashcodes
change with String variable s . a new object is allocated to variable s in functionchangeto
when s is changed
I had done all the above solutions but it did not work.
My default page wasn't an aspx page, it was an html page.
This article solved the problem. https://weblog.west-wind.com/posts/2013/aug/15/iis-default-documents-vs-aspnet-mvc-routes
Basically, in my \App_Start\RouteConfig.cs file, I had to add a line:
public static void RegisterRoutes(RouteCollection routes)
{
routes.IgnoreRoute("{resource}.axd/{*pathInfo}");
routes.IgnoreRoute(""); // This was the line I had to add here!
routes.MapRoute(
name: "Default",
url: "{controller}/{action}/{id}",
defaults: new { controller = "Home", action = "Index", id = UrlParameter.Optional }
);
}
Hope this helps someone, it took me a goodly while to find the answer.
It is common for comparison functions to return 0
on "equals", so that they can also return a negative number for "less than" and a positive number for "greater than". strcmp()
and memcmp()
work like this.
It is, however, idiomatic for zero to be false and nonzero to be true, because this is how the C flow control and logical boolean operators work. So it might be that the return values chosen for this function are fine, but it is the function's name that is in error (it should really just be called compare()
or similar).
I combined points from several comments and answers:
find . -maxdepth 1 -type d -name .git -execdir git pull \;
Here is how I do it in Python with Selenium 2.48.0:
from selenium.webdriver import Firefox
driver = Firefox()
driver.set_window_position(0, 0)
driver.set_window_size(1024, 768)
may be:
UIImage *img = [[UIImage alloc] init];
and when you want to change the image:
img = [UIImage imageNamed:@"nameOfPng.png"];
but the object wasn't in the same place in the memory, but if you use the pointer, the same pointer will be point to the last image loaded.
ggID='put_googleID_here'
ggURL='https://drive.google.com/uc?export=download'
filename="$(curl -sc /tmp/gcokie "${ggURL}&id=${ggID}" | grep -o '="uc-name.*</span>' | sed 's/.*">//;s/<.a> .*//')"
getcode="$(awk '/_warning_/ {print $NF}' /tmp/gcokie)"
curl -Lb /tmp/gcokie "${ggURL}&confirm=${getcode}&id=${ggID}" -o "${filename}"
How does it work?
Get cookie file and html code with curl.
Pipe html to grep and sed and search for file name.
Get confirm code from cookie file with awk.
Finally download file with cookie enabled, confirm code and filename.
curl -Lb /tmp/gcokie "https://drive.google.com/uc?export=download&confirm=Uq6r&id=0B5IRsLTwEO6CVXFURmpQZ1Jxc0U" -o "SomeBigFile.zip"
If you dont need filename variable curl can guess it
-L Follow redirects
-O Remote-name
-J Remote-header-name
curl -sc /tmp/gcokie "${ggURL}&id=${ggID}" >/dev/null
getcode="$(awk '/_warning_/ {print $NF}' /tmp/gcokie)"
curl -LOJb /tmp/gcokie "${ggURL}&confirm=${getcode}&id=${ggID}"
To extract google file ID from URL you can use:
echo "gURL" | egrep -o '(\w|-){26,}'
# match more than 26 word characters
OR
echo "gURL" | sed 's/[^A-Za-z0-9_-]/\n/g' | sed -rn '/.{26}/p'
# replace non-word characters with new line,
# print only line with more than 26 word characters
In a word - speed. An index for up to a million rows fits in a 32-bit word, so it can be used efficiently on 32-bit processors. Function arguments that fit in a CPU register are extremely efficient, while ones that are larger require accessing memory on each function call, a far slower operation. Updating a spreadsheet can be an intensive operation involving many cell references, so speed is important. Besides, the Excel team expects that anyone dealing with more than a million rows will be using a database rather than a spreadsheet.
If you installed ES using the RPM/DEB packages as provided (as you seem to have), you can adjust this by editing the init script (/etc/init.d/elasticsearch on RHEL/CentOS
). If you have a look in the file you'll see a block with the following:
export ES_HEAP_SIZE
export ES_HEAP_NEWSIZE
export ES_DIRECT_SIZE
export ES_JAVA_OPTS
export JAVA_HOME
To adjust the size, simply change the ES_HEAP_SIZE
line to the following:
export ES_HEAP_SIZE=xM/xG
(where x is the number of MB/GB of RAM that you would like to allocate)
Example:
export ES_HEAP_SIZE=1G
Would allocate 1GB.
Once you have edited the script, save and exit, then restart the service. You can check if it has been correctly set by running the following:
ps aux | grep elasticsearch
And checking for the -Xms and -Xmx flags in the java process that returns:
/usr/bin/java -Xms1G -Xmx1G
Hope this helps :)
If you want to pass a pointer-to-int into your function,
Declaration of function (if you need it):
void Fun(int *ptr);
Definition of function:
void Fun(int *ptr) {
int *other_pointer = ptr; // other_pointer points to the same thing as ptr
*other_ptr = 3; // manipulate the thing they both point to
}
Use of function:
int main() {
int x = 2;
printf("%d\n", x);
Fun(&x);
printf("%d\n", x);
}
Note as a general rule, that variables called Ptr
or Pointer
should never have type int
, which is what you have then in your code. A pointer-to-int has type int *
.
If I have a second pointer (int *oof), then:
bar = oof means: bar points to the oof pointer
It means "make bar point to the same thing oof points to".
bar = *oof means: bar points to the value that oof points to, but not to the oof pointer itself
That doesn't mean anything, it's invalid. bar
is a pointer *oof
is an int. You can't assign one to the other.
*bar = *oof means: change the value that bar points to to the value that oof points to
Yes.
&bar = &oof means: change the memory address that bar points to be the same as the memory address that oof points to
Nope, that's invalid again. &bar
is a pointer to the bar
variable, but it is what's called an "rvalue", or "temporary", and it cannot be assigned to. It's like the result of an arithmetic calculation. You can't write x + 1 = 5
.
It might help you to think of pointers as addresses. bar = oof
means "make bar, which is an address, equal to oof, which is also an address". bar = &foo
means "make bar, which is an address, equal to the address of foo". If bar = *oof
meant anything, it would mean "make bar, which is an address, equal to *oof
, which is an int". You can't.
Then, &
is the address-of operator. It means "the address of the operand", so &foo
is the address of foo (i.e, a pointer to foo). *
is the dereference operator. It means "the thing at the address given by the operand". So having done bar = &foo
, *bar
is foo
.
Based on @Raghuram answer, I find a tutorial on Copying project dependencies, Just:
Open your project pom.xml
file and find this:
<project>
[...]
<build>
<plugins>
...
</plugins>
</build>
[...]
</project>
Than replace the <plugins> ... </plugins>
with:
<plugins>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-dependency-plugin</artifactId>
<version>3.0.0</version>
<executions>
<execution>
<id>copy-dependencies</id>
<phase>package</phase>
<goals>
<goal>copy-dependencies</goal>
</goals>
<configuration>
<outputDirectory>${project.build.directory}/alternateLocation</outputDirectory>
<overWriteReleases>false</overWriteReleases>
<overWriteSnapshots>false</overWriteSnapshots>
<overWriteIfNewer>true</overWriteIfNewer>
</configuration>
</execution>
</executions>
</plugin>
</plugins>
And call maven within the command line mvn dependency:copy-dependencies
After it finishes, it will create the folder target/dependency
within all the jar
's dependencies on the current directory where the pom.xml
lives.
I prefer dotmemory from Jetbrains
Normally, When you copy a cell you will find the below statement written down in the status bar (in the bottom of your sheet)
"Select destination and Press Enter or Choose Paste"
Then you press whether Enter or choose paste to paste the value of the cell.
If you didn't press Esc afterwards you will be able to paste the value of the cell several times
Application.CutCopyMode = False does the same like the Esc button, if you removed it from your code you will find that you are able to paste the cell value several times again.
And if you closed the Excel without pressing Esc you will get the warning 'There is a large amount of information on the Clipboard....'
Looks like you're trying to both inherit the groupId from the parent, and simultaneously specify the parent using an inherited groupId!
In the child pom, use something like this:
<modelVersion>4.0.0</modelVersion>
<parent>
<groupId>org.felipe</groupId>
<artifactId>tutorial_maven</artifactId>
<version>1.0-SNAPSHOT</version>
<relativePath>../pom.xml</relativePath>
</parent>
<artifactId>tutorial_maven_jar</artifactId>
Using properties like ${project.groupId}
won't work there. If you specify the parent in this way, then you can inherit the groupId and version in the child pom. Hence, you only need to specify the artifactId in the child pom.
Public Function TestError() As String()
Return {"foo", "bar"}
End Function
Works fine for me and should work for you, but you may need allow using implicit declarations in your project. I believe this is turning off Options strict in the Compile section of the program settings.
Since you are using VS 2008 (VB.NET 9.0) you have to declare create the new instance
New String() {"foo", "Bar"}
Another solution:
import re
passwordRegex = re.compile(r'''(
^(?=.*[A-Z].*[A-Z]) # at least two capital letters
(?=.*[!@#$&*]) # at least one of these special c-er
(?=.*[0-9].*[0-9]) # at least two numeric digits
(?=.*[a-z].*[a-z].*[a-z]) # at least three lower case letters
.{8,} # at least 8 total digits
$
)''', re.VERBOSE)
def userInputPasswordCheck():
print('Enter a potential password:')
while True:
m = input()
mo = passwordRegex.search(m)
if (not mo):
print('''
Your password should have at least one special charachter,
two digits, two uppercase and three lowercase charachter. Length: 8+ ch-ers.
Enter another password:''')
else:
print('Password is strong')
return
userInputPasswordCheck()
Some differences between “state” and “props” in react.
React controls and renders DOM based on state. There are two types of component states: props is the state that transfers between components, and state is internal state of components. Props is used for data transfer from the parent component to the child component. The components also have their own state inside: state which can only be modified inside the component.
Generally the state of certain component could be the props of the child component ,props will be passed to children which is stated inside the rendering method of the parent component
Browsers look for your favicon in /favicon.ico
, so that's where it needs to be. You can double check if you've positioned it in the correct place by navigating to [address:port]/favicon.ico
and seeing if your icon appears.
In dev mode, you are using historyApiFallback, so will need to configure webpack to explicitly return your icon for that route:
historyApiFallback: {
index: '[path/to/index]',
rewrites: [
// shows favicon
{ from: /favicon.ico/, to: '[path/to/favicon]' }
]
}
In your server.js
file, try explicitly rewriting the url:
app.configure(function() {
app.use('/favicon.ico', express.static(__dirname + '[route/to/favicon]'));
});
(or however your setup prefers to rewrite urls)
I suggest generating a true .ico
file rather than using a .png
, since I've found that to be more reliable across browsers.
Maybe you want dictionaries?
d = dict( (i,value) for i,value in enumerate(tple))
while d:
bla bla bla
del b[x]
I have take comments below into consideration and agreed. Eval is to be avoided.
Accessing root properties in object is easily achieved with obj[variable]
, but getting nested complicates thing. Not to write already written code I suggest to use lodash.get
.
Example
// Accessing root property
var rootProp = 'rootPropert';
_.get(object, rootProp, defaultValue);
// Accessing nested property
var listOfNestedProperties = [var1, var2];
_.get(object, listOfNestedProperties);
Lodash get can be used on different ways, here is link to the documentation lodash.get
It seems browsers still download images even if the latter are directly or indirectly hidden with display: none
property.
The only standard way to prevent this from happening I found, was using loading
attribute of the img
tag:
<img src="https://cdn.test/img.jpg" loading="lazy">
All latest browsers support it except Safari and Firefox Android.
If you know that your strings are mostly ASCII you could convert them to UTF-8.
byte[] bytes = string.getBytes("UTF-8");
This may reduce the memory size by about 50%. However, you will get a byte array out and not a string. If you are writing it to a file though, that should not be a problem.
To convert back to a String:
private final Charset UTF8_CHARSET = Charset.forName("UTF-8");
...
String s = new String(bytes, UTF8_CHARSET);
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
char *name = "hello";
int main(void) {
char *ext = ".txt";
int len = strlen(name) + strlen(ext) + 1;
char *n2 = malloc(len);
char *n2a = malloc(len);
if (n2 == NULL || n2a == NULL)
abort();
strlcpy(n2, name, len);
strlcat(n2, ext, len);
printf("%s\n", n2);
/* or for conforming C99 ... */
strncpy(n2a, name, len);
strncat(n2a, ext, len - strlen(n2a));
printf("%s\n", n2a);
return 0; // this exits, otherwise free n2 && n2a
}
JObject obj = JObject.Parse(json);
var attributes = obj["parent"]["child"]...["your desired element"].ToList<JToken>();
foreach (JToken attribute in attributes)
{
JProperty jProperty = attribute.ToObject<JProperty>();
string propertyName = jProperty.Name;
}
You can use an enumerated value just like an integer:
myChoice c;
...
switch( c ) {
case EASY:
DoStuff();
break;
case MEDIUM:
...
}
Comparator does everything that comparable does, plus more.
| | Comparable | Comparator ._______________________________________________________________________________ Is used to allow Collections.sort to work | yes | yes Can compare multiple fields | yes | yes Lives inside the class you’re comparing and serves | | as a “default” way to compare | yes | yes Can live outside the class you’re comparing | no | yes Can have multiple instances with different method names | no | yes Input arguments can be a list of | just Object| Any type Can use enums | no | yes
I found the best approach to use comparators as anonymous classes as follows:
private static void sortAccountsByPriority(List<AccountRecord> accounts) {
Collections.sort(accounts, new Comparator<AccountRecord>() {
@Override
public int compare(AccountRecord a1, AccountRecord a2) {
return a1.getRank().compareTo(a2.getRank());
}
});
}
You can create multiple versions of such methods right inside the class you’re planning to sort. So you can have:
sortAccountsByPriorityAndType
etc...
Now, you can use these sort methods anywhere and get code reuse. This gives me everything a comparable would, plus more ... so I don’t see any reason to use comparable at all.
Just use the crossOrigin
attribute and pass 'anonymous'
as the second parameter
var img = new Image();
img.setAttribute('crossOrigin', 'anonymous');
img.src = url;
I'd consider also Apache Thrift http://thrift.apache.org/
It can bridge between several programming languages, is highly efficient and has support for async or sync calls. See full features here http://thrift.apache.org/docs/features/
The multi language can be useful for future plans, for example if you later want to do part of the computational task in C++ it's very easy to do add it to the mix using Thrift.
Shelf is a JetBrains feature while Stash is a Git feature for same work. You can switch to different branch without commit and loss of work using either of features. My personal experience is to use Shelf.
If you want to create a new workspace - simply enter a new path in the textfield at the "select workspace" dialog. Eclipse will create a new workspace at that location and switch to it.
There was a bug, but it was fixed in the meantime. :host { }
works fine now.
Also supported are
:host(selector) { ... }
for selector
to match attributes, classes, ... on the host element:host-context(selector) { ... }
for selector
to match elements, classes, ...on parent components
selector /deep/ selector
(alias selector >>> selector
doesn't work with SASS) for styles to match across element boundaries
UPDATE: SASS is deprecating /deep/
.
Angular (TS and Dart) added ::ng-deep
as a replacement that's also compatible with SASS.
UPDATE2: ::slotted
::slotted
is now supported by all new browsers and can be used with `ViewEncapsulation.ShadowDom
https://developer.mozilla.org/en-US/docs/Web/CSS/::slotted
See also Load external css style into Angular 2 Component
/deep/
and >>>
are not affected by the same selector combinators that in Chrome which are deprecated.
Angular emulates (rewrites) them, and therefore doesn't depend on browsers supporting them.
This is also why /deep/
and >>>
don't work with ViewEncapsulation.Native
which enables native shadow DOM and depends on browser support.
Console.Read()
=> reads only one character from the standard input
Console.ReadLine()
=> reads all characters in the line from the standard input
As seen in Gradle (Eclipse plugin)
http://www.gradle.org/get-started
Gradle uses whichever JDK it finds in your path (to check, use java -version). Alternatively, you can set the JAVA_HOME environment variable to point to the install directory of the desired JDK.
If you are using this Eclipse plugin or Enide Studio 2014, alternative JAVA_HOME to use (set in Preferences) will be in version 0.15, see http://www.nodeclipse.org/history
View Demo which is using angularjs
and see your's browser log
<!DOCTYPE html>
<html ng-app="Application_TimeOut">
<head>
<script src="http://cdnjs.cloudflare.com/ajax/libs/angular.js/1.2.20/angular.min.js"></script>
</head>
<body>
</body>
<script>
var app = angular.module('Application_TimeOut', []);
app.run(function($rootScope, $timeout, $document) {
console.log('starting run');
// Timeout timer value
var TimeOutTimerValue = 5000;
// Start a timeout
var TimeOut_Thread = $timeout(function(){ LogoutByTimer() } , TimeOutTimerValue);
var bodyElement = angular.element($document);
/// Keyboard Events
bodyElement.bind('keydown', function (e) { TimeOut_Resetter(e) });
bodyElement.bind('keyup', function (e) { TimeOut_Resetter(e) });
/// Mouse Events
bodyElement.bind('click', function (e) { TimeOut_Resetter(e) });
bodyElement.bind('mousemove', function (e) { TimeOut_Resetter(e) });
bodyElement.bind('DOMMouseScroll', function (e) { TimeOut_Resetter(e) });
bodyElement.bind('mousewheel', function (e) { TimeOut_Resetter(e) });
bodyElement.bind('mousedown', function (e) { TimeOut_Resetter(e) });
/// Touch Events
bodyElement.bind('touchstart', function (e) { TimeOut_Resetter(e) });
bodyElement.bind('touchmove', function (e) { TimeOut_Resetter(e) });
/// Common Events
bodyElement.bind('scroll', function (e) { TimeOut_Resetter(e) });
bodyElement.bind('focus', function (e) { TimeOut_Resetter(e) });
function LogoutByTimer()
{
console.log('Logout');
///////////////////////////////////////////////////
/// redirect to another page(eg. Login.html) here
///////////////////////////////////////////////////
}
function TimeOut_Resetter(e)
{
console.log('' + e);
/// Stop the pending timeout
$timeout.cancel(TimeOut_Thread);
/// Reset the timeout
TimeOut_Thread = $timeout(function(){ LogoutByTimer() } , TimeOutTimerValue);
}
})
</script>
</html>
Below code is pure javascript version
<html>
<head>
<script type="text/javascript">
function logout(){
console.log('Logout');
}
function onInactive(millisecond, callback){
var wait = setTimeout(callback, millisecond);
document.onmousemove =
document.mousedown =
document.mouseup =
document.onkeydown =
document.onkeyup =
document.focus = function(){
clearTimeout(wait);
wait = setTimeout(callback, millisecond);
};
}
</script>
</head>
<body onload="onInactive(5000, logout);"></body>
</html>
I updated my solution as @Tom suggestion.
<!DOCTYPE html>
<html ng-app="Application_TimeOut">
<head>
<script src="http://cdnjs.cloudflare.com/ajax/libs/angular.js/1.2.20/angular.min.js"></script>
</head>
<body>
</body>
<script>
var app = angular.module('Application_TimeOut', []);
app.run(function($rootScope, $timeout, $document) {
console.log('starting run');
// Timeout timer value
var TimeOutTimerValue = 5000;
// Start a timeout
var TimeOut_Thread = $timeout(function(){ LogoutByTimer() } , TimeOutTimerValue);
var bodyElement = angular.element($document);
angular.forEach(['keydown', 'keyup', 'click', 'mousemove', 'DOMMouseScroll', 'mousewheel', 'mousedown', 'touchstart', 'touchmove', 'scroll', 'focus'],
function(EventName) {
bodyElement.bind(EventName, function (e) { TimeOut_Resetter(e) });
});
function LogoutByTimer(){
console.log('Logout');
///////////////////////////////////////////////////
/// redirect to another page(eg. Login.html) here
///////////////////////////////////////////////////
}
function TimeOut_Resetter(e){
console.log(' ' + e);
/// Stop the pending timeout
$timeout.cancel(TimeOut_Thread);
/// Reset the timeout
TimeOut_Thread = $timeout(function(){ LogoutByTimer() } , TimeOutTimerValue);
}
})
</script>
</html>
Even I too faced similar issue,
fatal error RC1015: cannot open include file 'afxres.h'. from this code
Replacing afxres.h with Winresrc.h and declaring IDC_STATIC as -1 worked for me. (Using visual studio Premium 2012)
//#include "afxres.h"
#include "WinResrc.h"
#define IDC_STATIC -1
I found a good solution for adding/updating the CA certificates on RHEL/CentOS 6 which is the root cause reported issue.
Since they become outdated distros, the cacert authorities in that system has not been updated until executing the command sudo yum update
.
Didn't realize the issue until the GIT_CURL_VERBOSE mode shows the cacert path issue.
public static String setPrecision(String number, int decimal) {
double nbr = Double.valueOf(number);
int integer_Part = (int) nbr;
double float_Part = nbr - integer_Part;
int floating_point = (int) (Math.pow(10, decimal) * float_Part);
String final_nbr = String.valueOf(integer_Part) + "." + String.valueOf(floating_point);
return final_nbr;
}
Other than using the Navigator/Proj Explorer and choosing files and doing 'Compare With'->'Each other'... I prefer opening both files in Eclipse and using 'Compare With'->'Opened Editor'->(pick the opened tab)... You can get this feature via the AnyEdit eclipse plugin located here (you can use Install Software via Eclipse->Help->Install New Software screen): http://andrei.gmxhome.de/eclipse/
A slightly different approach worked for me :-
const normalize = (size: number): number => {
const scale = screenWidth / 320;
const newSize = size * scale;
let calculatedSize = Math.round(PixelRatio.roundToNearestPixel(newSize))
if (PixelRatio.get() < 3)
return calculatedSize - 0.5
return calculatedSize
};
Do refer Pixel Ratio as this allows you to better set up the function based on the device density.
Your first problem is a limitation of the PRINT
statement. I'm not sure why sp_executesql
is failing. It should support pretty much any length of input.
Perhaps the reason the query is malformed is something other than truncation.
Take a look at DATEDIFF, this should be what you're looking for. It takes the two dates you're comparing, and the date unit you want the difference in (days, months, seconds...)
round_to_2dp
is a user-defined function, and nothing can be done unless you posted the declaration of that function.
However, my guess is doing this: number_format($number, 2);
[Android] if someone looking to implement timer on android using java.
you need use UI thread like this to perform operations.
Timer timer = new Timer();
timer.schedule(new TimerTask() {
@Override
public void run() {
ActivityName.this.runOnUiThread(new Runnable(){
@Override
public void run() {
// do something
}
});
}
}, 2000));
How to use a clock and do assertions
This example shows how to generate a clock, and give inputs and assert outputs for every cycle. A simple counter is tested here.
The key idea is that the process
blocks run in parallel, so the clock is generated in parallel with the inputs and assertions.
library ieee;
use ieee.std_logic_1164.all;
entity counter_tb is
end counter_tb;
architecture behav of counter_tb is
constant width : natural := 2;
constant clk_period : time := 1 ns;
signal clk : std_logic := '0';
signal data : std_logic_vector(width-1 downto 0);
signal count : std_logic_vector(width-1 downto 0);
type io_t is record
load : std_logic;
data : std_logic_vector(width-1 downto 0);
count : std_logic_vector(width-1 downto 0);
end record;
type ios_t is array (natural range <>) of io_t;
constant ios : ios_t := (
('1', "00", "00"),
('0', "UU", "01"),
('0', "UU", "10"),
('0', "UU", "11"),
('1', "10", "10"),
('0', "UU", "11"),
('0', "UU", "00"),
('0', "UU", "01")
);
begin
counter_0: entity work.counter port map (clk, load, data, count);
process
begin
for i in ios'range loop
load <= ios(i).load;
data <= ios(i).data;
wait until falling_edge(clk);
assert count = ios(i).count;
end loop;
wait;
end process;
process
begin
for i in 1 to 2 * ios'length loop
wait for clk_period / 2;
clk <= not clk;
end loop;
wait;
end process;
end behav;
The counter would look like this:
library ieee;
use ieee.std_logic_1164.all;
use ieee.numeric_std.all; -- unsigned
entity counter is
generic (
width : in natural := 2
);
port (
clk, load : in std_logic;
data : in std_logic_vector(width-1 downto 0);
count : out std_logic_vector(width-1 downto 0)
);
end entity counter;
architecture rtl of counter is
signal cnt : unsigned(width-1 downto 0);
begin
process(clk) is
begin
if rising_edge(clk) then
if load = '1' then
cnt <= unsigned(data);
else
cnt <= cnt + 1;
end if;
end if;
end process;
count <= std_logic_vector(cnt);
end architecture rtl;
Related: https://electronics.stackexchange.com/questions/148320/proper-clock-generation-for-vhdl-testbenches
you show fragment in a container (with id= fragmentcontainer) so you remove fragment with:
Fragment fragment = getSupportFragmentManager().findFragmentById(R.id.fragmentContainer);
fragmentTransaction.remove(fragment);
fragmentTransaction.addToBackStack(null);
fragmentTransaction.commit();
This example demonstrates the difference between the mousemove, mouseenter and mouseover events:
https://jsfiddle.net/z8g613yd/
HTML:
<div onmousemove="myMoveFunction()">
<p>onmousemove: <br> <span id="demo">Mouse over me!</span></p>
</div>
<div onmouseenter="myEnterFunction()">
<p>onmouseenter: <br> <span id="demo2">Mouse over me!</span></p>
</div>
<div onmouseover="myOverFunction()">
<p>onmouseover: <br> <span id="demo3">Mouse over me!</span></p>
</div>
CSS:
div {
width: 200px;
height: 100px;
border: 1px solid black;
margin: 10px;
float: left;
padding: 30px;
text-align: center;
background-color: lightgray;
}
p {
background-color: white;
height: 50px;
}
p span {
background-color: #86fcd4;
padding: 0 20px;
}
JS:
var x = 0;
var y = 0;
var z = 0;
function myMoveFunction() {
document.getElementById("demo").innerHTML = z += 1;
}
function myEnterFunction() {
document.getElementById("demo2").innerHTML = x += 1;
}
function myOverFunction() {
document.getElementById("demo3").innerHTML = y += 1;
}
onmousemove
: occurs every time the mouse pointer is moved over the div element.onmouseenter
: only occurs when the mouse pointer enters the div element.onmouseover
: occurs when the mouse pointer enters the div element,
and its child elements (p and span).Since the login page is a separate page, I am assuming that you want to redirect to the page that the user reached the login page from.
$_SERVER['REQUEST_URI']
will simply hold the current page. What you want to do is use $_SERVER['HTTP_REFERER']
So save the HTTP_REFERER in a hidden element on your form <input type="hidden" name="referer" value="<?= $_SERVER['HTTP_REFERER'] ?>" />
but keep in mind that in the PHP that processes the form you will need some logic that redirects back to the login page if login fails but also to check that the referer is actually your website, if it isn't, then redirect back to the homepage.
I too got this error, when developing a Backbone application using HTML5 push state in conjunction with an .htaccess which redirects any unknown files to index.html.
It turns out that when visiting a URL such as /something/5
, my /index.html
was effectively being served at /something/index.html
(thanks to my .htaccess). This had the effect of breaking all the relative URLs to my JavaScript files (from inside the index.html ), which meant that they should have 404'd on me.
However, again due to my htaccess, instead of 404'ing when attempting to retrieve the JS files, they instead returned my index.html. Thus the browser was given an index.html for every JavaScript file it tried to pull in, and when it evaluated the HTML as if it were JavaScript, it returned a JS error due to the leading < (from my tag in index.html).
The fix in my case (as I was serving the site from inside a subdirectory) was to add a base tag in my html head.
<base href="/my-app/">
If you use IIS Express via Visual Studio instead of the builtin ASP.net host, you can achieve this.
Resolve is also more straightforward
from django.urls import resolve
resolve('edit_project', project_id=4)
There is no straight forward way of doing this.
What you can do is load the script on demand. (again uses something similar to what Ignacio mentioned,but much cleaner).
Check this link out for multiple ways of doing this: http://ajaxpatterns.org/On-Demand_Javascript
My favorite is(not applicable always):
<script src="dojo.js" type="text/javascript">
dojo.require("dojo.aDojoPackage");
Google's closure also provides similar functionality.
Not really, in the standard. Some implementations have a nonstandard itoa() function, and you could look up Boost's lexical_cast, but if you stick to the standard it's pretty much a choice between stringstream and sprintf() (snprintf() if you've got it).
You can store this in a long
. A long
can store a value from -9223372036854775808
to 9223372036854775807
.
You can see marked answer on top. But i used getDialog().getCurrentFocus()
and working well. I post this answer cause i cant type "this"
in my oncreatedialog.
So this is my answer. If you tried marked answer and not worked , you can simply try this:
InputMethodManager inputManager = (InputMethodManager) getActivity().getApplicationContext().getSystemService(Context.INPUT_METHOD_SERVICE);
inputManager.hideSoftInputFromWindow(getDialog().getCurrentFocus().getWindowToken(), InputMethodManager.HIDE_NOT_ALWAYS);
stage.setOnCloseRequest(new EventHandler<WindowEvent>() {
@Override
public void handle(WindowEvent event) {
Platform.exit();
System.exit(0);
}
});
I think what you're trying to do is wrap loooooooooooooong words or URLs so they don't push the size of the table out. (I've just been trying to do the same thing!)
You can do this easily with a DIV by giving it the style word-wrap: break-word
(and you may need to set its width, too).
div {
word-wrap: break-word; /* All browsers since IE 5.5+ */
overflow-wrap: break-word; /* Renamed property in CSS3 draft spec */
width: 100%;
}
However, for tables, you must either wrap the content in a DIV (or other block tag) or apply: table-layout: fixed
. This means the columns widths are no longer fluid, but are defined based on the widths of the columns in the first row only (or via specified widths). Read more here.
Sample code:
table {
table-layout: fixed;
width: 100%;
}
table td {
word-wrap: break-word; /* All browsers since IE 5.5+ */
overflow-wrap: break-word; /* Renamed property in CSS3 draft spec */
}
Hope that helps somebody.
In similar situations, I've done well by putting something like the following into /etc/rc.local:
cd /path/to/my/script
./my_script.py &
cd -
echo `date +%Y-%b-%d_%H:%M:%S` > /tmp/ran_rc_local # check that rc.local ran
This has worked on multiple versions of Fedora and on Ubuntu 14.04 LTS, for both python and perl scripts.
I found a way to make a textarea with all this working at the same time:
It works well on:
Let me explain how i get to that: I was using Chrome inspector integrated tool and I saw values on CSS styles, so I try these values, instead of normal ones... trial & errors till I got it reduced to minimum and here it is for anyone that wants it.
In the CSS section I used just this for Chrome, Firefox, Opera and Safari:
textarea {
white-space:nowrap;
overflow:scroll;
}
In the CSS section I used just this for IE:
textarea {
overflow:scroll;
}
It was a bit tricky, but there is the CSS.
An (x)HTML tag like this:
<textarea id="myTextarea" rows="10" cols="15"></textarea>
And at the end of the <head>
section a JavaScript like this:
window.onload=function(){
document.getElementById("myTextarea").wrap='off';
}
The JavaScript is for making the W3C validator passing XHTML 1.1 Strict, since the wrap attribute is not official and thus cannot be an (x)HTML tag directly, but most browsers handle it, so after loading the page it sets that attribute.
Hope this can be tested on more browsers and versions and help someone to improve it and makes it fully cross-browser for all versions.
Try and use:
if(myList.Any())
{
}
Note: this assmumes myList is not null.
I went to menu: Tools → Options.
Environment → Keyboard.
Show command containing and searched: comment
I changed Edit.CommentSelection and assigned Ctrl+/ for commenting.
And I left Ctrl+K then U for the Edit.UncommentSelection.
These could be tweaked to the user's preference as to what key they would prefer for commenting/uncommenting.
This is a ternary operator, it's basically an inline if statement
x ? y : z
works like
if(x) y else z
except, instead of statements you have expressions; so you can use it in the middle of a more complex statement.
It's useful for writing succinct code, but can be overused to create hard to maintain code.
template <class ForwardIterator>
ForwardIterator min_element ( ForwardIterator first, ForwardIterator last )
{
ForwardIterator lowest = first;
if (first == last) return last;
while (++first != last)
if (*first < *lowest)
lowest = first;
return lowest;
}
Your code only works for global functions, ie. members of the window
object. To use it with arbitrary functions, pass the function itself instead of its name as a string:
function dispatch(fn, args) {
fn = (typeof fn == "function") ? fn : window[fn]; // Allow fn to be a function object or the name of a global function
return fn.apply(this, args || []); // args is optional, use an empty array by default
}
function f1() {}
function f2() {
var f = function() {};
dispatch(f, [1, 2, 3]);
}
dispatch(f1, ["foobar"]);
dispatch("f1", ["foobar"]);
f2(); // calls inner-function "f" in "f2"
dispatch("f", [1, 2, 3]); // doesn't work since "f" is local in "f2"
You can set up the log level by using setLevel().
The levels are useful to easily set the kind of informations you want the program to display.
For example:
Logger.getRootLogger().setLevel(Level.WARN); //will not show debug messages
The set of possible levels are:
TRACE,
DEBUG,
INFO,
WARN,
ERROR and
FATAL
According to Logging Services manual
You can't instantiate a date object any way you want. It has to be in a specific way. Here are some valid examples:
new Date() // current date and time
new Date(milliseconds) //milliseconds since 1970/01/01
new Date(dateString)
new Date(year, month, day, hours, minutes, seconds, milliseconds)
or
d1 = new Date("October 13, 1975 11:13:00")
d2 = new Date(79,5,24)
d3 = new Date(79,5,24,11,33,0)
Chrome must just be more flexible.
Source: https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Date
From apsillers comment:
the EMCAScript specification requires exactly one date format (i.e., YYYY-MM-DDTHH:mm:ss.sssZ) but custom date formats may be freely supported by an implementation: "If the String does not conform to that [ECMAScript-defined] format the function may fall back to any implementation-specific heuristics or implementation-specific date formats." Chrome and FF simply have different "implementation-specific date formats."
I updated my Gradle 2.3.3 to 4.4 and got an error on AppCompatActivity and also Cardview. I tried with clean project and rebuild project. It won't work, then I go to Project Folder -> .idea -> create backup of libraries folder and remove it -> then Rebuild Project that solved my issue.
If you need Appcompat Version
style.xml
<!-- Base application theme. -->
<style name="AppDialogTheme" parent="Theme.AppCompat.Light.Dialog">
<!-- Customize your theme here. -->
<item name="windowActionBar">false</item>
<item name="android:windowNoTitle">true</item>
</style>
yourmanifest.xml
<activity
android:name=".MyActivity"
android:label="@string/title"
android:theme="@style/AppDialogTheme">
</activity>
Minimal reproduction example with disassembly analysis
main.c
void myfunc(char *const src, int len) {
int i;
for (i = 0; i < len; ++i) {
src[i] = 42;
}
}
int main(void) {
char arr[] = {'a', 'b', 'c', 'd'};
int len = sizeof(arr);
myfunc(arr, len + 1);
return 0;
}
Compile and run:
gcc -fstack-protector-all -g -O0 -std=c99 main.c
ulimit -c unlimited && rm -f core
./a.out
fails as desired:
*** stack smashing detected ***: terminated
Aborted (core dumped)
Tested on Ubuntu 20.04, GCC 10.2.0.
On Ubuntu 16.04, GCC 6.4.0, I could reproduce with -fstack-protector
instead of -fstack-protector-all
, but it stopped blowing up when I tested on GCC 10.2.0 as per Geng Jiawen's comment. man gcc
clarifies that as suggested by the option name, the -all
version adds checks more aggressively, and therefore presumably incurs a larger performance loss:
-fstack-protector
Emit extra code to check for buffer overflows, such as stack smashing attacks. This is done by adding a guard variable to functions with vulnerable objects. This includes functions that call "alloca", and functions with buffers larger than or equal to 8 bytes. The guards are initialized when a function is entered and then checked when the function exits. If a guard check fails, an error message is printed and the program exits. Only variables that are actually allocated on the stack are considered, optimized away variables or variables allocated in registers don't count.
-fstack-protector-all
Like -fstack-protector except that all functions are protected.
Disassembly
Now we look at the disassembly:
objdump -D a.out
which contains:
int main (void){
400579: 55 push %rbp
40057a: 48 89 e5 mov %rsp,%rbp
# Allocate 0x10 of stack space.
40057d: 48 83 ec 10 sub $0x10,%rsp
# Put the 8 byte canary from %fs:0x28 to -0x8(%rbp),
# which is right at the bottom of the stack.
400581: 64 48 8b 04 25 28 00 mov %fs:0x28,%rax
400588: 00 00
40058a: 48 89 45 f8 mov %rax,-0x8(%rbp)
40058e: 31 c0 xor %eax,%eax
char arr[] = {'a', 'b', 'c', 'd'};
400590: c6 45 f4 61 movb $0x61,-0xc(%rbp)
400594: c6 45 f5 62 movb $0x62,-0xb(%rbp)
400598: c6 45 f6 63 movb $0x63,-0xa(%rbp)
40059c: c6 45 f7 64 movb $0x64,-0x9(%rbp)
int len = sizeof(arr);
4005a0: c7 45 f0 04 00 00 00 movl $0x4,-0x10(%rbp)
myfunc(arr, len + 1);
4005a7: 8b 45 f0 mov -0x10(%rbp),%eax
4005aa: 8d 50 01 lea 0x1(%rax),%edx
4005ad: 48 8d 45 f4 lea -0xc(%rbp),%rax
4005b1: 89 d6 mov %edx,%esi
4005b3: 48 89 c7 mov %rax,%rdi
4005b6: e8 8b ff ff ff callq 400546 <myfunc>
return 0;
4005bb: b8 00 00 00 00 mov $0x0,%eax
}
# Check that the canary at -0x8(%rbp) hasn't changed after calling myfunc.
# If it has, jump to the failure point __stack_chk_fail.
4005c0: 48 8b 4d f8 mov -0x8(%rbp),%rcx
4005c4: 64 48 33 0c 25 28 00 xor %fs:0x28,%rcx
4005cb: 00 00
4005cd: 74 05 je 4005d4 <main+0x5b>
4005cf: e8 4c fe ff ff callq 400420 <__stack_chk_fail@plt>
# Otherwise, exit normally.
4005d4: c9 leaveq
4005d5: c3 retq
4005d6: 66 2e 0f 1f 84 00 00 nopw %cs:0x0(%rax,%rax,1)
4005dd: 00 00 00
Notice the handy comments automatically added by objdump
's artificial intelligence module.
If you run this program multiple times through GDB, you will see that:
myfunc
is exactly what modifies the address of the canaryThe canary randomized by setting it with %fs:0x28
, which contains a random value as explained at:
Debug attempts
From now on, we modify the code:
myfunc(arr, len + 1);
to be instead:
myfunc(arr, len);
myfunc(arr, len + 1); /* line 12 */
myfunc(arr, len);
to be more interesting.
We will then try to see if we can pinpoint the culprit + 1
call with a method more automated than just reading and understanding the entire source code.
gcc -fsanitize=address
to enable Google's Address Sanitizer (ASan)
If you recompile with this flag and run the program, it outputs:
#0 0x4008bf in myfunc /home/ciro/test/main.c:4
#1 0x40099b in main /home/ciro/test/main.c:12
#2 0x7fcd2e13d82f in __libc_start_main (/lib/x86_64-linux-gnu/libc.so.6+0x2082f)
#3 0x400798 in _start (/home/ciro/test/a.out+0x40079
followed by some more colored output.
This clearly pinpoints the problematic line 12.
The source code for this is at: https://github.com/google/sanitizers but as we saw from the example it is already upstreamed into GCC.
ASan can also detect other memory problems such as memory leaks: How to find memory leak in a C++ code/project?
Valgrind SGCheck
As mentioned by others, Valgrind is not good at solving this kind of problem.
It does have an experimental tool called SGCheck:
SGCheck is a tool for finding overruns of stack and global arrays. It works by using a heuristic approach derived from an observation about the likely forms of stack and global array accesses.
So I was not very surprised when it did not find the error:
valgrind --tool=exp-sgcheck ./a.out
The error message should look like this apparently: Valgrind missing error
GDB
An important observation is that if you run the program through GDB, or examine the core
file after the fact:
gdb -nh -q a.out core
then, as we saw on the assembly, GDB should point you to the end of the function that did the canary check:
(gdb) bt
#0 0x00007f0f66e20428 in __GI_raise (sig=sig@entry=6) at ../sysdeps/unix/sysv/linux/raise.c:54
#1 0x00007f0f66e2202a in __GI_abort () at abort.c:89
#2 0x00007f0f66e627ea in __libc_message (do_abort=do_abort@entry=1, fmt=fmt@entry=0x7f0f66f7a49f "*** %s ***: %s terminated\n") at ../sysdeps/posix/libc_fatal.c:175
#3 0x00007f0f66f0415c in __GI___fortify_fail (msg=<optimized out>, msg@entry=0x7f0f66f7a481 "stack smashing detected") at fortify_fail.c:37
#4 0x00007f0f66f04100 in __stack_chk_fail () at stack_chk_fail.c:28
#5 0x00000000004005f6 in main () at main.c:15
(gdb) f 5
#5 0x00000000004005f6 in main () at main.c:15
15 }
(gdb)
And therefore the problem is likely in one of the calls that this function made.
Next we try to pinpoint the exact failing call by first single stepping up just after the canary is set:
400581: 64 48 8b 04 25 28 00 mov %fs:0x28,%rax
400588: 00 00
40058a: 48 89 45 f8 mov %rax,-0x8(%rbp)
and watching the address:
(gdb) p $rbp - 0x8
$1 = (void *) 0x7fffffffcf18
(gdb) watch 0x7fffffffcf18
Hardware watchpoint 2: *0x7fffffffcf18
(gdb) c
Continuing.
Hardware watchpoint 2: *0x7fffffffcf18
Old value = 1800814336
New value = 1800814378
myfunc (src=0x7fffffffcf14 "*****?Vk\266", <incomplete sequence \355\216>, len=5) at main.c:3
3 for (i = 0; i < len; ++i) {
(gdb) p len
$2 = 5
(gdb) p i
$3 = 4
(gdb) bt
#0 myfunc (src=0x7fffffffcf14 "*****?Vk\266", <incomplete sequence \355\216>, len=5) at main.c:3
#1 0x00000000004005cc in main () at main.c:12
Now, this does leaves us at the right offending instruction: len = 5
and i = 4
, and in this particular case, did point us to the culprit line 12.
However, the backtrace is corrupted, and contains some trash. A correct backtrace would look like:
#0 myfunc (src=0x7fffffffcf14 "abcd", len=4) at main.c:3
#1 0x00000000004005b8 in main () at main.c:11
so maybe this could corrupt the stack and prevent you from seeing the trace.
Also, this method requires knowing what is the last call of the canary checking function otherwise you will have false positives, which will not always be feasible, unless you use reverse debugging.
Alternatively you could use a loop, keep the row number (counter should be the row number) and stop the loop when you find the first "ProjTemp".
Then it should look something like this:
Sub find()
Dim i As Integer
Dim firstTime As Integer
Dim bNotFound As Boolean
i = 1
bNotFound = True
Do While bNotFound
If Cells(i, 2).Value = "ProjTemp" Then
firstTime = i
bNotFound = false
End If
i = i + 1
Loop
End Sub
You can specify a environment variable named PORT
to specify the port on which the server will run.
$ export PORT=3005 #Linux
$ $env:PORT=3005 # Windows - Powershell
In Stored procedure, you return the values using OUT
parameter ONLY. As you have defined two variables in your example:
outstaticip OUT VARCHAR2, outcount OUT NUMBER
Just assign the return values to the out parameters i.e. outstaticip
and outcount
and access them back from calling location. What I mean here is: when you call the stored procedure, you will be passing those two variables as well. After the stored procedure call, the variables will be populated with return values.
If you want to have RETURN value
as return from the PL/SQL call, then use FUNCTION
. Please note that in case, you would be able to return only one variable as return variable.
You can do a Runtime.getRuntime.exec(command) to relaunch the jar including classpath with args.
Best way seems to be the following:
final LocationManager manager = (LocationManager) getSystemService( Context.LOCATION_SERVICE );
if ( !manager.isProviderEnabled( LocationManager.GPS_PROVIDER ) ) {
buildAlertMessageNoGps();
}
private void buildAlertMessageNoGps() {
final AlertDialog.Builder builder = new AlertDialog.Builder(this);
builder.setMessage("Your GPS seems to be disabled, do you want to enable it?")
.setCancelable(false)
.setPositiveButton("Yes", new DialogInterface.OnClickListener() {
public void onClick(@SuppressWarnings("unused") final DialogInterface dialog, @SuppressWarnings("unused") final int id) {
startActivity(new Intent(android.provider.Settings.ACTION_LOCATION_SOURCE_SETTINGS));
}
})
.setNegativeButton("No", new DialogInterface.OnClickListener() {
public void onClick(final DialogInterface dialog, @SuppressWarnings("unused") final int id) {
dialog.cancel();
}
});
final AlertDialog alert = builder.create();
alert.show();
}
For expect, .equal
will compare objects rather than their data, and in your case it is two different arrays.
Use .eql
in order to deeply compare values. Check out this link.
Or you could use .deep.equal
in order to simulate same as .eql
.
Or in your case you might want to check .members
.
For asserts you can use .deepEqual
, link.
Modify your log4j.properties
file accordingly:
log4j.rootLogger=TRACE,stdout
...
log4j.logger.debugLog=TRACE,debugLog
log4j.logger.reportsLog=DEBUG,reportsLog
Change the log levels for each logger depending to your needs.
This assumes Eclipse and an appropriate JDK are installed on your system
this error appeared to me because my php-fpm
image enabled cron
, and I have no idea why
I was trying do the same of making a particular file my default page, instead of directory structure. So in IIS server I had to go to Default Document, add the page that I want to make as default and at the same time, go to the Web.config file and update the defaultDocument header with "enabled=true". This worked for me. Hopefully it helps.
IMHO, there is not much difference in case of web application if you look at it from the angle of responsibility assignment. However, keep the clarity in the layer. Keep anything purely for the presentation purpose in the presentation layer, like the control and code specific to the web controls. Just keep your entities in the business layer and all features (like add, edit, delete) etc in the business layer. However rendering them onto the browser to be handled in the presentation layer. For .Net, the ASP.NET MVC pattern is very good in terms of keeping the layers separated. Look into the MVC pattern.
Used the shape as oval. This makes the button oval
<item>
<shape android:shape="oval" >
<stroke
android:height="1.0dip"
android:width="1.0dip"
android:color="#ffee82ee" />
<solid android:color="#ffee82ee" />
<corners
android:bottomLeftRadius="12.0dip"
android:bottomRightRadius="12.0dip"
android:radius="12.0dip"
android:topLeftRadius="12.0dip"
android:topRightRadius="12.0dip" />
</shape>
</item>
I have solved my problem by running my Nginx as the user I'm currently logged in with, mulagala.
By default the user as nginx is defined at the very top section of the nginx.conf
file as seen below;
user nginx; # Default Nginx user
Change nginx to the name of your current user - here, mulagala.
user mulagala; # Custom Nginx user (as username of the current logged in user)
However, this may not address the actual problem and may actually have casual side effect(s).
For an effective solution, please refer to Joseph Barbere's solution.
PostgreSQL also supports full POSIX regular expressions:
select * from table where value ~* 'foo|bar|baz';
The ~*
is for a case insensitive match, ~
is case sensitive.
Another option is to use ANY:
select * from table where value like any (array['%foo%', '%bar%', '%baz%']);
select * from table where value ilike any (array['%foo%', '%bar%', '%baz%']);
You can use ANY with any operator that yields a boolean. I suspect that the regex options would be quicker but ANY is a useful tool to have in your toolbox.
If you use basicHttpBinding, configure the endpoint security to "None" and transport clientCredintialType to "None."
<bindings>
<basicHttpBinding>
<binding name="MyBasicHttpBinding">
<security mode="None">
<transport clientCredentialType="None" />
</security>
</binding>
</basicHttpBinding>
</bindings>
<services>
<service behaviorConfiguration="MyServiceBehavior" name="MyService">
<endpoint
binding="basicHttpBinding"
bindingConfiguration="MyBasicHttpBinding"
name="basicEndPoint"
contract="IMyService"
/>
</service>
Also, make sure the directory Authentication Methods in IIS to Enable Anonymous access
You're storing the .Text
properties of the textboxes directly into the database, this doesn't work. The .Text
properties are String
s (i.e. simple text) and not typed as DateTime
instances. Do the conversion first, then it will work.
Do this for each date parameter:
Dim bookIssueDate As DateTime = DateTime.ParseExact( txtBookDateIssue.Text, "dd/MM/yyyy", CultureInfo.InvariantCulture ) cmd.Parameters.Add( New OleDbParameter("@Date_Issue", bookIssueDate ) )
Note that this code will crash/fail if a user enters an invalid date, e.g. "64/48/9999", I suggest using DateTime.TryParse
or DateTime.TryParseExact
, but implementing that is an exercise for the reader.
The functions* quit()
, exit()
, and sys.exit()
function in the same way: they raise the SystemExit
exception. So there is no real difference, except that sys.exit()
is always available but exit()
and quit()
are only available if the site
module is imported.
The os._exit()
function is special, it exits immediately without calling any cleanup functions (it doesn't flush buffers, for example). This is designed for highly specialized use cases... basically, only in the child after an os.fork()
call.
Use exit()
or quit()
in the REPL.
Use sys.exit()
in scripts, or raise SystemExit()
if you prefer.
Use os._exit()
for child processes to exit after a call to os.fork()
.
All of these can be called without arguments, or you can specify the exit status, e.g., exit(1)
or raise SystemExit(1)
to exit with status 1. Note that portable programs are limited to exit status codes in the range 0-255, if you raise SystemExit(256)
on many systems this will get truncated and your process will actually exit with status 0.
* Actually, quit()
and exit()
are callable instance objects, but I think it's okay to call them functions.
Let’s create a JSON file, we name it navbar.json you can name it whatever you want!
navbar.json
[
{
"href": "#",
"text": "Home",
"icon": ""
},
{
"href": "#",
"text": "Bundles",
"icon": "",
"children": [
{
"href": "#national",
"text": "National",
"icon": "assets/images/national.svg"
}
]
}
]
Now we’ve created a JSON file with some menu data. We’ll go to app component file and paste the below code.
app.component.ts
import { Component } from '@angular/core';
import menudata from './navbar.json';
@Component({
selector: 'lm-navbar',
templateUrl: './navbar.component.html'
})
export class NavbarComponent {
mainmenu:any = menudata;
}
Now your Angular 7 app is ready to serve the data from the local JSON file.
Go to app.component.html and paste the following code in it.
app.component.html
<ul class="navbar-nav ml-auto">
<li class="nav-item" *ngFor="let menu of mainmenu">
<a class="nav-link" href="{{menu.href}}">{{menu.icon}} {{menu.text}}</a>
<ul class="sub_menu" *ngIf="menu.children && menu.children.length > 0">
<li *ngFor="let sub_menu of menu.children"><a class="nav-link" href="{{sub_menu.href}}"><img src="{{sub_menu.icon}}" class="nav-img" /> {{sub_menu.text}}</a></li>
</ul>
</li>
</ul>
use any one of the bellow options which suites your requirement
listview.removeViews(1,listview.getChildCount());
or
listview.removeViewInLayout(your view);
Execute VSWinExpress /resetuserdata
, located in C:\Program Files (x86)\Microsoft Visual Studio 12.0
, to reset the user credentials for Visual Studio 2013 Express.
I used fake UserAgent.
How to use:
from fake_useragent import UserAgent
import requests
ua = UserAgent()
print(ua.chrome)
header = {'User-Agent':str(ua.chrome)}
print(header)
url = "https://www.hybrid-analysis.com/recent-submissions?filter=file&sort=^timestamp"
htmlContent = requests.get(url, headers=header)
print(htmlContent)
Output:
Mozilla/5.0 (Macintosh; Intel Mac OS X 10_8_2) AppleWebKit/537.17 (KHTML, like Gecko) Chrome/24.0.1309.0 Safari/537.17
{'User-Agent': 'Mozilla/5.0 (X11; OpenBSD i386) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/36.0.1985.125 Safari/537.36'}
<Response [200]>
WORKDIR /scripts
COPY bootstrap.sh .
RUN ./bootstrap.sh
If you just want to get the current UNIX timestamp I'd just use time()
$timestamp = time();
Try this:
var momentObj = $("#start_ts").datepicker("getDate");
var yourDate = momentObj.format('L');
hope you are doing well.
you can use my code to crop image.you just have to make a class and use this class into your XMl
and java
classes.
Crop image.
you can crop your selected image into circle and square into many of option.
hope fully it will works for you.because this is totally manageable for you and you can change it according to you.
enjoy your work :)
This loops vertically but might work for you.
int rtn = 0;
foreach(int[] L in lists){
for(int i = 0; i<L.Length;i++){
rtn = L[i];
//Do something with rtn
}
}
When you run
install.packages("whatever")
you got message that your binaries are downloaded into temporary location (e.g. The downloaded binary packages are in C:\Users\User_name\AppData\Local\Temp\RtmpC6Y8Yv\downloaded_packages ). Go there. Take binaries (zip file). Copy paste into location which you get from running the code:
.libPaths()
If libPaths shows 2 locations, then paste into second one. Load library:
library(whatever)
Fixed.
If there's a period in the table name, it will fail for
SELECT * FROM poorly_named.table;
Use backticks to get it to find the table
SELECT * FROM `poorly_named.table`;
There is also some simple solution without mapping node_module
directory into another volume. It's about to move installing npm packages into final CMD command.
Disadvantage of this approach:
- run
npm install
each time you run container (switching fromnpm
toyarn
might also speed up this process a bit).
FROM node:0.12
WORKDIR /worker
COPY package.json /worker/
COPY . /worker/
CMD /bin/bash -c 'npm install; npm start'
redis:
image: redis
worker:
build: ./worker
ports:
- "9730:9730"
volumes:
- worker/:/worker/
links:
- redis
Use the ListView.HitTest
method
private void listView_MouseDoubleClick(object sender, MouseEventArgs e)
{
var senderList = (ListView) sender;
var clickedItem = senderList.HitTest(e.Location).Item;
if (clickedItem != null)
{
//do something
}
}
Or the old way
private void listView_MouseDoubleClick(object sender, MouseEventArgs e)
{
var senderList = (ListView) sender;
if (senderList.SelectedItems.Count == 1 && IsInBound(e.Location, senderList.SelectedItems[0].Bounds))
{
//Do something
}
}
public bool IsInBound(Point location, Rectangle bound)
{
return (bound.Y <= location.Y &&
bound.Y + bound.Height >= location.Y &&
bound.X <= location.X &&
bound.X + bound.Width >= location.X);
}
Use this code
TextView textView = new TextView(YourActivity.this);
textView.setGravity(Gravity.CENTER | Gravity.TOP);
textView.setText("some text");
I had the same problem with e1071 package. Just close any other R sessions running parallelly and you will be good to go.
This has been asked for various languages. Here's one question about passwords which should be applicable here as well.
If you want to use the strings for URL shortening, you'll also need a Dictionary<> or database check to see whether a generated ID has already been used.
from selenium import webdriver
options = webdriver.ChromeOptions()
options.add_argument('--disable-logging')
# Update your desired_capabilities dict withe extra options.
desired_capabilities.update(options.to_capabilities())
driver = webdriver.Remote(desired_capabilities=options.to_capabilities())
Both the desired_capabilities and options.to_capabilities() are dictionaries. You can use the dict.update() method to add the options to the main set.
package SortedSet;
import java.util.*;
public class HashMapValueSort {
public static void main(String[] args){
final Map<Integer, String> map = new HashMap<Integer,String>();
map.put(4,"Mango");
map.put(3,"Apple");
map.put(5,"Orange");
map.put(8,"Fruits");
map.put(23,"Vegetables");
map.put(1,"Zebra");
map.put(5,"Yellow");
System.out.println(map);
final HashMapValueSort sort = new HashMapValueSort();
final Set<Map.Entry<Integer, String>> entry = map.entrySet();
final Comparator<Map.Entry<Integer, String>> comparator = new Comparator<Map.Entry<Integer, String>>() {
@Override
public int compare(Map.Entry<Integer, String> o1, Map.Entry<Integer, String> o2) {
String value1 = o1.getValue();
String value2 = o2.getValue();
return value1.compareTo(value2);
}
};
final SortedSet<Map.Entry<Integer, String>> sortedSet = new TreeSet(comparator);
sortedSet.addAll(entry);
final Map<Integer,String> sortedMap = new LinkedHashMap<Integer, String>();
for(Map.Entry<Integer, String> entry1 : sortedSet ){
sortedMap.put(entry1.getKey(),entry1.getValue());
}
System.out.println(sortedMap);
}
}
In my case I forgot to enable
app.use(express.json());
in my NodeJs server.
I got this
String appPath = App.getApp().getApplicationContext().getFilesDir().getAbsolutePath();
The JSON.parse
function accepts an optional DateTime reviver function. You can use a function like this:
dateTimeReviver = function (key, value) {
var a;
if (typeof value === 'string') {
a = /\/Date\((\d*)\)\//.exec(value);
if (a) {
return new Date(+a[1]);
}
}
return value;
}
Then call
JSON.parse(somejsonstring, dateTimeReviver);
And your dates will come out right.
Another way to applyhorizontalalignment
and rotation
to each tick label is doing a for
loop over the tick labels you want to change:
import numpy as np
import matplotlib.pyplot as plt
import datetime as dt
now = dt.datetime.now()
hours = [now + dt.timedelta(minutes=x) for x in range(0,24*60,10)]
days = [now + dt.timedelta(days=x) for x in np.arange(0,30,1/4.)]
hours_value = np.random.random(len(hours))
days_value = np.random.random(len(days))
fig, axs = plt.subplots(2)
fig.subplots_adjust(hspace=0.75)
axs[0].plot(hours,hours_value)
axs[1].plot(days,days_value)
for label in axs[0].get_xmajorticklabels() + axs[1].get_xmajorticklabels():
label.set_rotation(30)
label.set_horizontalalignment("right")
And here is an example if you want to control the location of major and minor ticks:
import numpy as np
import matplotlib.pyplot as plt
import datetime as dt
fig, axs = plt.subplots(2)
fig.subplots_adjust(hspace=0.75)
now = dt.datetime.now()
hours = [now + dt.timedelta(minutes=x) for x in range(0,24*60,10)]
days = [now + dt.timedelta(days=x) for x in np.arange(0,30,1/4.)]
axs[0].plot(hours,np.random.random(len(hours)))
x_major_lct = mpl.dates.AutoDateLocator(minticks=2,maxticks=10, interval_multiples=True)
x_minor_lct = matplotlib.dates.HourLocator(byhour = range(0,25,1))
x_fmt = matplotlib.dates.AutoDateFormatter(x_major_lct)
axs[0].xaxis.set_major_locator(x_major_lct)
axs[0].xaxis.set_minor_locator(x_minor_lct)
axs[0].xaxis.set_major_formatter(x_fmt)
axs[0].set_xlabel("minor ticks set to every hour, major ticks start with 00:00")
axs[1].plot(days,np.random.random(len(days)))
x_major_lct = mpl.dates.AutoDateLocator(minticks=2,maxticks=10, interval_multiples=True)
x_minor_lct = matplotlib.dates.DayLocator(bymonthday = range(0,32,1))
x_fmt = matplotlib.dates.AutoDateFormatter(x_major_lct)
axs[1].xaxis.set_major_locator(x_major_lct)
axs[1].xaxis.set_minor_locator(x_minor_lct)
axs[1].xaxis.set_major_formatter(x_fmt)
axs[1].set_xlabel("minor ticks set to every day, major ticks show first day of month")
for label in axs[0].get_xmajorticklabels() + axs[1].get_xmajorticklabels():
label.set_rotation(30)
label.set_horizontalalignment("right")
I follow Douglas Crockford's code conventions for JavaScript. I also use his JSLint tool to validate following those conventions.
i used the empty div solution, with this CSS:
#throbber {
background-image: url(/Content/pictures/ajax-loader.gif);
background-repeat: no-repeat;
width: 48px;
height: 48px;
min-width: 48px;
min-height: 48px;
}
HTML:
<div id="throbber"></div>
net stop <your service> && net start <your service>
No net restart
, unfortunately.
NoneType means that instead of an instance of whatever Class or Object you think you're working with, you've actually got None
. That usually means that an assignment or function call up above failed or returned an unexpected result.
However, the code below allows spaces.
No, it doesn't. However, it will only match on input with a length of 1. For inputs with a length greater than or equal to 1, you need a +
following the character class:
var regexp = /^[a-zA-Z0-9-_]+$/;
var check = "checkme";
if (check.search(regexp) === -1)
{ alert('invalid'); }
else
{ alert('valid'); }
Note that neither the -
(in this instance) nor the _
need escaping.
The characters you are reading on your screen now each have a numerical value. In the ASCII format, for example, the letter 'A' is 65, 'B' is 66, and so on. If you look at a table of characters available in ASCII you will see that it isn't much use for someone who wishes to write something in Mandarin, Arabic, or Japanese. For characters / words from those languages to be displayed we needed another system of encoding them to and from numbers stored in computer memory.
UTF-8 is just one of the encoding methods that were invented to implement this requirement. It lets you write text in all kinds of languages, so French accents will appear perfectly fine, as will text like this
???? ????? (Bzia zbasa), ???????, Ç'kemi, ???, and even right-to-left writing such as this ?????? ?????
If you copy and paste the above text into notepad and then try to save the file as ANSI (another format) you will receive a warning that saving in this format will lose some of the formatting. Accept it, then re-load the text file and you'll see something like this
???? ????? (Bzia zbasa), ???????, Ç'kemi, ???, and even right-to-left writing such as this ?????? ?????
Accepted answer of Kapil is flawed, it will update more than one record if there are 2 or more than one records available with same timestamps, not a true top 1 query.
;With cte as (
SELECT TOP(1) email_fk FROM abc WHERE id= 177 ORDER BY created DESC
)
UPDATE cte SET email_fk = 10
Ref Remus Rusanu Ans:- SQL update top1 row query
It depends on your Linux distibution and your preference of editors etc. but I would recommend to start with Kile (a KDE app) as it is easy to learn and installing it should install most of the needed packages for LaTex and PDF generation. Just have a look at the screenshots.
First you need to know what are Signals in Unix-like systems (It'll take just few minutes).
Signals, are software interrupts sent to a (running) program to indicate that an important event has occurred.
The events can vary from user requests to illegal memory access errors. Some signals, such as the interrupt signal, indicate that a user has asked the program to do something that is not in the usual flow of control.
There are several types of Signals we can use - to get a full list of all the available/possible Signals use "$ kill -l" command:
In the above output it's clearly visible, that each Signal has a 'signal number' (e.g. 1, 2, 3) and a 'signal name' (e.g. SIGUP, SIGINT, SIGQUIT) associated with it. For a detailed look up what each and every Signal does, visit this link.
Finally, coming to the question "Why number 9 in kill -9 command":
There are several methods of delivering signals to a program or script. One of commonly used method for sending signal is to use the kill command - the basic syntax is:
$ kill -signal pid
Where signal is either the number or name of the signal, followed by the process Id (pid) to which the signal will be sent.
For example - -SIGKILL (or -9), signal kills the process immediately.
$ kill -SIGKILL 1001
and
$ kill -9 1001
both command are one the same thing i.e. above we have used the 'signal name', and later we have used 'signal number'.
Verdict: One has an open choice to whether use the 'signal name' or 'signal number' with the kill command.
From the answer of @DevWL, I got "Undefined offset ..." at
if ($j<($num_fields-1)) { $data.= ','; }
I made some changes to:
class DBbackup {
public $suffix;
public $dirs;
protected $dbInstance;
public function __construct() {
try{
$this->dbInstance = new PDO("mysql:host=".$dbhost.";dbname=".$dbname,
$username, $password);
} catch(Exception $e) {
die("Error ".$e->getMessage());
}
$this->suffix = date('Ymd_His');
}
public function backup($tables = '*'){
$output = "-- database backup - ".date('Y-m-d H:i:s').PHP_EOL;
$output .= "SET NAMES utf8;".PHP_EOL;
$output .= "SET sql_mode = 'NO_AUTO_VALUE_ON_ZERO';".PHP_EOL;
$output .= "SET foreign_key_checks = 0;".PHP_EOL;
$output .= "SET AUTOCOMMIT = 0;".PHP_EOL;
$output .= "START TRANSACTION;".PHP_EOL;
//get all table names
if($tables == '*') {
$tables = [];
$query = $this->dbInstance->prepare('SHOW TABLES');
$query->execute();
while($row = $query->fetch(PDO::FETCH_NUM)) {
$tables[] = $row[0];
}
$query->closeCursor();
}
else {
$tables = is_array($tables) ? $tables : explode(',',$tables);
}
foreach($tables as $table) {
$query = $this->dbInstance->prepare("SELECT * FROM `$table`");
$query->execute();
$output .= "DROP TABLE IF EXISTS `$table`;".PHP_EOL;
$query2 = $this->dbInstance->prepare("SHOW CREATE TABLE `$table`");
$query2->execute();
$row2 = $query2->fetch(PDO::FETCH_NUM);
$query2->closeCursor();
$output .= PHP_EOL.$row2[1].";".PHP_EOL;
while($row = $query->fetch(PDO::FETCH_NUM)) {
$output .= "INSERT INTO `$table` VALUES(";
for($j=0; $j<count($row); $j++) {
$row[$j] = addslashes($row[$j]);
$row[$j] = str_replace("\n","\\n",$row[$j]);
if (isset($row[$j]))
$output .= "'".$row[$j]."'";
else $output .= "''";
if ($j<(count($row)-1))
$output .= ',';
}
$output .= ");".PHP_EOL;
}
}
$output .= PHP_EOL.PHP_EOL;
$output .= "COMMIT;";
//save filename
$filename = 'db_backup_'.$this->suffix.'.sql';
$this->writeUTF8filename($filename,$output);
}
private function writeUTF8filename($fn,$c){ /* save as utf8 encoding */
$f=fopen($fn,"w+");
# Now UTF-8 - Add byte order mark
fwrite($f, pack("CCC",0xef,0xbb,0xbf));
fwrite($f,$c);
fclose($f);
}
}
And usage example:
$Backup = new DBbackup();
$Backup->backup();
This works great on MySQL 10.1.34-MariaDB , PHP : 7.2.7
There is OxyPlot which I recommend. It has packages for WPF, Metro, Silverlight, Windows Forms, Avalonia UI, XWT. Besides graphics it can export to SVG, PDF, Open XML, etc. And it even supports Mono and Xamarin for Android and iOS. It is actively developed too.
There is also a new (at least for me) open source .NET plotting library called Live-Charts. The plots are pretty interactive. Library suports WPF, WinForms and UWP. Xamarin is planned. The design is made towards MV* patterns. But @Pawel Audionysos suggests not such a good performance of Live-Charts WPF.
DATEADD
only returned Function does not exist
on MySQL 5.5.53 (I know it's old)
Instead, I found DatePlayed > DATE_SUB(CURRENT_TIMESTAMP, INTERVAL 30 minute)
to produce the desired result