function truncate(string, length, delimiter) {
delimiter = delimiter || "…";
return string.length > length ? string.substr(0, length) + delimiter : string;
};
var long = "Very long text here and here",
short = "Short";
truncate(long, 10); // -> "Very long ..."
truncate(long, 10, ">>"); // -> "Very long >>"
truncate(short, 10); // -> "Short"
To DELETE, without changing the references, you should first delete or otherwise alter (in a manner suitable for your purposes) all relevant rows in other tables.
To TRUNCATE you must remove the references. TRUNCATE is a DDL statement (comparable to CREATE and DROP) not a DML statement (like INSERT and DELETE) and doesn't cause triggers, whether explicit or those associated with references and other constraints, to be fired. Because of this, the database could be put into an inconsistent state if TRUNCATE was allowed on tables with references. This was a rule when TRUNCATE was an extension to the standard used by some systems, and is mandated by the the standard, now that it has been added.
TRUNCATE is fast, DELETE is slow.
Although, TRUNCATE has no accountability.
sed 's/^.\{5\}//' logfile
and you replace 5 by the number you want...it should do the trick...
EDIT
if for each line
sed 's/^.\{5\}//g' logfile
I can't think of a reason to explicitly lose precision outside of display purposes. In that case, simply use string formatting.
double example = 12.34567;
Console.Out.WriteLine(example.ToString("#.000"));
Seems no one has posted this yet:
public static class StringExt
{
public static string Truncate(this string s, int maxLength)
{
return s != null && s.Length > maxLength ? s.Substring(0, maxLength) : s;
}
}
Using the && operator makes it marginally better than the accepted answer.
In this case it would probably be better to just have an empty database that you use as a template and when you need to refresh, drop the existing database and create a new one from the template.
For SQL Server 2008 only
CAST(@SomeDateTime AS Date)
Then cast it back to datetime if you want
CAST(CAST(@SomeDateTime AS Date) As datetime)
Thought I would give Sugar.js a mention. It has a truncate method that is pretty smart.
From the documentation:
Truncates a string. Unless split is true, truncate will not split words up, and instead discard the word where the truncation occurred.
Example:
'just sittin on the dock of the bay'.truncate(20)
Output:
just sitting on...
No, TRUNCATE
is all or nothing. You can do a DELETE FROM <table> WHERE <conditions>
but this loses the speed advantages of TRUNCATE
.
Correct; you cannot truncate a table which has an FK constraint on it.
Typically my process for this is:
(All in a transaction, of course.)
Of course, this only applies if the child has already been truncated. Otherwise I go a different route, dependent entirely on what my data looks like. (Too many variables to get into here.)
The original poster determined WHY this is the case; see this answer for more details.
double value = 3.4555;
String value1 = String.format("% .3f", value) ;
String value2 = value1.substring(0, value1.length() - 1);
System.out.println(value2);
double doublevalue= Double.valueOf(value2);
System.out.println(doublevalue);
2014 March: Truncating long strings with CSS: a new answer with focus on browser support
Demo on http://jsbin.com/leyukama/1/ (I use jsbin because it supports old version of IE).
<style type="text/css">
span {
display: inline-block;
white-space: nowrap;
overflow: hidden;
text-overflow: ellipsis; /** IE6+, Firefox 7+, Opera 11+, Chrome, Safari **/
-o-text-overflow: ellipsis; /** Opera 9 & 10 **/
width: 370px; /* note that this width will have to be smaller to see the effect */
}
</style>
<span>Some very long text that should be cut off at some point coz it's a bit too long and the text overflow ellipsis feature is used</span>
The -ms-text-overflow CSS property is not necessary: it is a synonym of the text-overflow CSS property, but versions of IE from 6 to 11 already support the text-overflow CSS property.
Successfully tested (on Browserstack.com) on Windows OS, for web browsers:
Firefox: as pointed out by Simon Lieschke (in another answer), Firefox only support the text-overflow CSS property from Firefox 7 onwards (released September 27th 2011).
I double checked this behavior on Firefox 3.0 & Firefox 6.0 (text-overflow is not supported).
Some further testing on a Mac OS web browsers would be needed.
Note: you may want to show a tooltip on mouse hover when an ellipsis is applied, this can be done via javascript, see this questions: HTML text-overflow ellipsis detection and HTML - how can I show tooltip ONLY when ellipsis is activated
Resources:
Ruby(1.9+)
ruby -ne 'BEGIN{prv=""};print prv ; prv=$_;' file
I use this script
EXEC sp_MSForEachTable ‘ALTER TABLE ? NOCHECK CONSTRAINT ALL’
EXEC sp_MSForEachTable ‘DELETE FROM ?’
EXEC sp_MSForEachTable ‘ALTER TABLE ? CHECK CONSTRAINT ALL’
GO
The obvious thing to do is read the documentation.
But to help: substr($str, $start, $end);
$str
is your text
$start
is the character index to begin at. In your case, it is likely 0 which means the very beginning.
$end
is where to truncate at. Suppose you wanted to end at 15 characters, for example. You would write it like this:
<?php
$text = "long text that should be truncated";
echo substr($text, 0, 15);
?>
and you would get this:
long text that
makes sense?
EDIT
The link you gave is a function to find the last white space after chopping text to a desired length so you don't cut off in the middle of a word. However, it is missing one important thing - the desired length to be passed to the function instead of always assuming you want it to be 25 characters. So here's the updated version:
function truncate($text, $chars = 25) {
if (strlen($text) <= $chars) {
return $text;
}
$text = $text." ";
$text = substr($text,0,$chars);
$text = substr($text,0,strrpos($text,' '));
$text = $text."...";
return $text;
}
So in your case you would paste this function into the functions.php file and call it like this in your page:
$post = the_post();
echo truncate($post, 100);
This will chop your post down to the last occurrence of a white space before or equal to 100 characters. Obviously you can pass any number instead of 100. Whatever you need.
if I remember well... in query analyzer or equivalent:
BACKUP LOG databasename WITH TRUNCATE_ONLY
DBCC SHRINKFILE ( databasename_Log, 1)
You cannot TRUNCATE
a table that has FK constraints applied on it (TRUNCATE
is not the same as DELETE
).
To work around this, use either of these solutions. Both present risks of damaging the data integrity.
Option 1:
TRUNCATE
Option 2: suggested by user447951 in their answer
SET FOREIGN_KEY_CHECKS = 0;
TRUNCATE table $table_name;
SET FOREIGN_KEY_CHECKS = 1;
Try this:
decimal original = GetSomeDecimal(); // 22222.22939393
int number1 = (int)original; // contains only integer value of origina number
decimal temporary = original - number1; // contains only decimal value of original number
int decimalPlaces = GetDecimalPlaces(); // 3
temporary *= (Math.Pow(10, decimalPlaces)); // moves some decimal places to integer
temporary = (int)temporary; // removes all decimal places
temporary /= (Math.Pow(10, decimalPlaces)); // moves integer back to decimal places
decimal result = original + temporary; // add integer and decimal places together
It can be writen shorter, but this is more descriptive.
EDIT: Short way:
decimal original = GetSomeDecimal(); // 22222.22939393
int decimalPlaces = GetDecimalPlaces(); // 3
decimal result = ((int)original) + (((int)(original * Math.Pow(10, decimalPlaces)) / (Math.Pow(10, decimalPlaces));
Since no-one mentioned the %
operator yet, here comes. It only does truncation, and you cannot rely on the return value not to have floating point inaccuracies, but sometimes it's handy:
scala> 1.23456789 - (1.23456789 % 0.01)
res4: Double = 1.23
This is from a comment on the jQuery documentation page:
In older, pre-HTML5 browsers, "keyup" is definitely what you're looking for.
In HTML5 there is a new event, "input", which behaves exactly like you seem to think "change" should have behaved - in that it fires as soon as a key is pressed to enter information into a form.
$('element').bind('input',function);
android:background="@drawable/eye"
works automatically.
android:src="@drawable/eye"
was what I used with all the problems of resizing the image the the width and height of the button...
On my Arch Linux install, gems were installed to the ~/.gem/ruby/2.6.0/bin
directory if installed as user, or /root/.gem/ruby/2.6.0/bin
if installed via sudo
. Just append the appropriate one to your $PATH
environment variable:
export PATH=$PATH:/home/your_username/.gem/ruby/2.6.0/bin
Edit: The original link I answered with is now invalid.The newer URL would be https://developers.google.com/web/tools/chrome-devtools/javascript/add-breakpoints#exceptions as of 2016-11-11.
I realize this question has an answer, but it's no longer accurate. Use the link above ^
(link replaced by edited above) - you can now set it to break on all exceptions or just unhandled ones. (Note that you need to be in the Sources tab to see the button.)
Chrome's also added some other really useful breakpoint capabilities now, such as breaking on DOM changes or network events.
Normally I wouldn't re-answer a question, but I had the same question myself, and I found this now-wrong answer, so I figured I'd put this information in here for people who came along later in searching. :)
Here's how I did it in Swift 4.2:
extension Date {
/// Create a date from specified parameters
///
/// - Parameters:
/// - year: The desired year
/// - month: The desired month
/// - day: The desired day
/// - Returns: A `Date` object
static func from(year: Int, month: Int, day: Int) -> Date? {
let calendar = Calendar(identifier: .gregorian)
var dateComponents = DateComponents()
dateComponents.year = year
dateComponents.month = month
dateComponents.day = day
return calendar.date(from: dateComponents) ?? nil
}
}
Usage:
let marsOpportunityLaunchDate = Date.from(year: 2003, month: 07, day: 07)
Change your append calls to say
...append(iter->first)
and
... append(iter->second)
Additionally, the line
std::string* strToReturn = new std::string("");
allocates a string on the heap. If you intend to actually return a pointer to this dynamically allocated string, the return should be changed to std::string*.
Alternatively, if you don't want to worry about managing that object on the heap, change the local declaration to
std::string strToReturn("");
and change the 'append' calls to use reference syntax...
strToReturn.append(...)
instead of
strToReturn->append(...)
Be aware that this will construct the string on the stack, then copy it into the return variable. This has performance implications.
I had the same doubt, but see the PHP docu:
https://www.php.net/manual/en/function.file-exists.php
https://www.php.net/manual/en/function.is-dir.php
You will see that is_dir()
has both properties.
Return Values is_dir Returns TRUE if the filename exists and is a directory, FALSE otherwise.
None of this worked for me as I was using a grid rather than a StackPanel.
I finally found this example: http://spin.atomicobject.com/2013/03/06/xaml-wpf-textbox-focus/
and modified it to this:
In the 'Resources' section:
<Style x:Key="FocusTextBox" TargetType="Grid">
<Style.Triggers>
<DataTrigger Binding="{Binding ElementName=textBoxName, Path=IsVisible}" Value="True">
<Setter Property="FocusManager.FocusedElement" Value="{Binding ElementName=textBoxName}"/>
</DataTrigger>
</Style.Triggers>
</Style>
In my grid definition:
<Grid Style="{StaticResource FocusTextBox}" />
Your working tree is what is actually in the files that you are currently working on.
HEAD
is a pointer to the branch or commit that you last checked out, and which will be the parent of a new commit if you make it. For instance, if you're on the master
branch, then HEAD
will point to master
, and when you commit, that new commit will be a descendent of the revision that master
pointed to, and master
will be updated to point to the new commit.
The index is a staging area where the new commit is prepared. Essentially, the contents of the index are what will go into the new commit (though if you do git commit -a
, this will automatically add all changes to files that Git knows about to the index before committing, so it will commit the current contents of your working tree). git add
will add or update files from the working tree into your index.
The answer given by @yuvilio works well for two columns but, for more than two, this from here might be a better solution. In summary:
.row.no-gutters {
margin-right: 0;
margin-left: 0;
& > [class^="col-"],
& > [class*=" col-"] {
padding-right: 0;
padding-left: 0;
}
}
My preferred is:
This will have some overhead, but technically it does answer your question
echo abc `#put your comment here` \ def `#another chance for a comment` \ xyz etc
And for pipelines specifically, there is a cleaner solution with no overhead
echo abc | # normal comment OK here tr a-z A-Z | # another normal comment OK here sort | # the pipelines are automatically continued uniq # final comment
Here is a version of the currently accepted answer (from @Trevor) with key instead of keyCode:
document.querySelector('#txtSearch').addEventListener('keypress', function (e) {
if (e.key === 'Enter') {
// code for enter
}
});
Try this
$(document).ready(function(){
var form=$("#myForm");
$("#smt").click(function(){
$.ajax({
type:"POST",
url:form.attr("action"),
data:$("#myForm input").serialize(),//only input
success: function(response){
console.log(response);
}
});
});
});
After python 3.6, you can use formatted string literal. It's neat! (https://docs.python.org/3/whatsnew/3.6.html#whatsnew36-pep498)
try
...
except Exception as e:
logger.error(f"Failed to upload to ftp: {e}")
My preferred way is String.format()
because its a oneliner and doesn't require third party libraries:
String message = String.format("Hello! My name is %s, I'm %s.", name, age);
I use this regularly, e.g. in exception messages like:
throw new Exception(String.format("Unable to login with email: %s", email));
Hint: You can put in as many variables as you like because format()
uses Varargs
Although this thread is 3 years old, here is my solution:
$(function ()
{
keep_fields_uptodate();
});
function keep_fields_uptodate()
{
// Keep all fields up to date!
var $inputDate = $("input[type='date']");
$inputDate.blur(function(event)
{
$("input").trigger("change");
});
}
You can use the built-in forEach
function for arrays.
Like this:
//this sets all product descriptions to a max length of 10 characters
data.products.forEach( (element) => {
element.product_desc = element.product_desc.substring(0,10);
});
Your version wasn't wrong though. It should look more like this:
for(let i=0; i<data.products.length; i++){
console.log(data.products[i].product_desc); //use i instead of 0
}
This could also caused by mismatching brace/parenthesis.
$(TARGET}:
do_something
Just use parenthesises and you'll be fine.
I wrote about some of the limitations of correlated subqueries in Access/JET SQL a while back, and noted the syntax for joining multiple tables for SQL UPDATEs. Based on that info and some quick testing, I don't believe there's any way to do what you want with Access/JET in a single SQL UPDATE statement. If you could, the statement would read something like this:
UPDATE FUNCTIONS A
INNER JOIN (
SELECT AA.Func_ID, Min(BB.Tax_Code) AS MinOfTax_Code
FROM TAX BB, FUNCTIONS AA
WHERE AA.Func_Pure<=BB.Tax_ToPrice AND AA.Func_Year= BB.Tax_Year
GROUP BY AA.Func_ID
) B
ON B.Func_ID = A.Func_ID
SET A.Func_TaxRef = B.MinOfTax_Code
Alternatively, Access/JET will sometimes let you get away with saving a subquery as a separate query and then joining it in the UPDATE statement in a more traditional way. So, for instance, if we saved the SELECT subquery above as a separate query named FUNCTIONS_TAX, then the UPDATE statement would be:
UPDATE FUNCTIONS
INNER JOIN FUNCTIONS_TAX
ON FUNCTIONS.Func_ID = FUNCTIONS_TAX.Func_ID
SET FUNCTIONS.Func_TaxRef = FUNCTIONS_TAX.MinOfTax_Code
However, this still doesn't work.
I believe the only way you will make this work is to move the selection and aggregation of the minimum Tax_Code value out-of-band. You could do this with a VBA function, or more easily using the Access DLookup function. Save the GROUP BY subquery above to a separate query named FUNCTIONS_TAX and rewrite the UPDATE statement as:
UPDATE FUNCTIONS
SET Func_TaxRef = DLookup(
"MinOfTax_Code",
"FUNCTIONS_TAX",
"Func_ID = '" & Func_ID & "'"
)
Note that the DLookup function prevents this query from being used outside of Access, for instance via JET OLEDB. Also, the performance of this approach can be pretty terrible depending on how many rows you're targeting, as the subquery is being executed for each FUNCTIONS row (because, of course, it is no longer correlated, which is the whole point in order for it to work).
Good luck!
You may enjoy package friendlyeval
which presents a simplified tidy eval API and documentation for newer/casual dplyr
users.
You are creating strings that you wish mutate
to treat as column names. So using friendlyeval
you could write:
multipetal <- function(df, n) {
varname <- paste("petal", n , sep=".")
df <- mutate(df, !!treat_string_as_col(varname) := Petal.Width * n)
df
}
for(i in 2:5) {
iris <- multipetal(df=iris, n=i)
}
Which under the hood calls rlang
functions that check varname
is legal as column name.
friendlyeval
code can be converted to equivalent plain tidy eval code at any time with an RStudio addin.
I tried several jquery based custom select with images, but none worked in responsive layouts. Finally i came across Bootstrap-Select. After some modifications i was able to produce this code.
I'm not on windows, but I think you can use the pgAdmin you just installed to configure a server connection and start the server.
Could not load file or assembly 'Microsoft.ReportViewer.Webforms' or
Could not load file or assembly 'Microsoft.ReportViewer.Common'
This issue occured for me in Visual studio 2015.
Reason:
the reference for Microsoft.ReportViewer.Webforms dll is missing.
Possible Fix
Step1:
To add "Microsoft.ReportViewer.Webforms.dll" to the solution.
Navigate to Nuget Package Manager Console as
"Tools-->NugetPackageManager-->Package Manager Console".
Then enter the following command in console as below
PM>Install-Package Microsoft.ReportViewer.Runtime.WebForms
Then it will install the Reportviewer.webforms dll in "..\packages\Microsoft.ReportViewer.Runtime.WebForms.12.0.2402.15\lib" (Your project folder path)
and ReportViewer.Runtime.Common dll in "..\packages\Microsoft.ReportViewer.Runtime.Common.12.0.2402.15\lib". (Your project folder path)
Step2:-
Remove the existing reference of "Microsoft.ReportViewer.WebForms". we need to refer these dll files in our Solution as "Right click Solution >References-->Add reference-->browse ". Add both the dll files from the above paths.
Step3:
Change the web.Config File to point out to Visual Studio 2015. comment out both the Microsoft.ReportViewer.WebForms and Microsoft.ReportViewer.Common version 11.0.0.0 and Uncomment both the Microsoft.ReportViewer.WebForms and Microsoft.ReportViewer.Common Version=12.0.0.0. as attached in screenshot.
Microsoft.ReportViewer.Webforms/Microsoft.ReportViewer.Common
Also refer the link below.
Could not load file or assembly 'Microsoft.ReportViewer.WebForms'
You could do something like this: Use ng-pattern with the RegExp "/^[0-9]+$/" that means only integer numbers are valid.
<form novalidate name="form">
<input type="text" data-ng-model="age" id="age" name="age" ng-pattern="/^[0-9]+$/">
<span ng-show="form.age.$error.pattern">The value is not a valid integer</span>
</form>
You can also mix raw SQL with ActiveRecord conditions, for example if you want to call a function in a condition:
my_instances = MyModel.where.not(attribute_a: nil) \
.where('crc32(attribute_b) = ?', slot) \
.select(:id)
If the requested commit is in the pull requests of the remote repo, you can get it by its ID:
# Add the remote repo path, let's call it 'upstream':
git remote add upstream https://github.com/repo/project.git
# checkout the pull ID, for example ID '60':
git fetch upstream pull/60/head && git checkout FETCH_HEAD
If nearly everything seems right, another thing to look out for is to ensure that the validation summary is not being explicitly hidden via some CSS override like this:
.validation-summary-valid {
display: none;
}
This may also cause the @Html.ValidationSummary
to appear hidden, as the summary is dynamically rendered with the validation-summary-valid
class.
Console.WriteLine(
new System.Diagnostics.StackTrace().ToString()
);
The output will be similar to:
at YourNamespace.Program.executeMethod(String msg)
at YourNamespace.Program.Main(String[] args)
Replace Console.WriteLine
with your Log
method. Actually, there is
no need for .ToString()
for the Console.WriteLine case as it accepts
object
. But you may need that for your Log(string msg) method.
I get the same error in Cygwin. I had to install the openssh package in Cygwin Setup.
(The strange thing was that all ssh-*
commands were valid, (bash could execute as program) but the openssh package wasn't installed.)
For debian, from the 10gen repo, between 2.4.x and 2.6.x, they renamed the init script /etc/init.d/mongodb to /etc/init.d/mongod, and the default config file from /etc/mongodb.conf to /etc/mongod.conf, and the PID and lock files from "mongodb" to "mongod" too. This made upgrading a pain, and I don't see it mentioned in their docs anywhere. Anyway, the solution is to remove the old "mongodb" versions:
update-rc.d -f mongodb remove
rm /etc/init.d/mongodb
rm /var/run/mongodb.pid
diff -ur /etc/mongodb.conf /etc/mongod.conf
Now, look and see what config changes you need to keep, and put them in mongod.conf.
Then:
rm /etc/mongodb.conf
Now you can:
service mongod restart
The following link seems to work fine -
<a href="whatsapp://send?text=Hello World!&phone=+9198********1">Ping me on WhatsApp</a>
It opens the contact in WhatsApp app, along with the message 'Hello World!' prepopulated in the input text box.
(Tested this with google chrome on an android phone.)
Agreed with Yuri Tkachenko's answer.
I wanna point this out.
It's a pretty specific scenario. BUT it happens.
When you copy a gif before its loaded fully in some site like google images. it just gives the preview image address of that gif. Which is clearly not a gif.
So, make sure it ends with .gif extension
I'd avoid eval.
To solve this problem, you should know these things about JavaScript.
.
rather than square brackets []
, or vice versa.Your problem is a result of considering the dot manner of reference rather than the square bracket manner.
So, why not something like,
window["functionName"]();
That's assuming your function lives in the global space. If you've namespaced, then:
myNameSpace["functionName"]();
Avoid eval, and avoid passing a string in to setTimeout and setInterval. I write a lot of JS, and I NEVER need eval. "Needing" eval comes from not knowing the language deeply enough. You need to learn about scoping, context, and syntax. If you're ever stuck with an eval, just ask--you'll learn quickly.
$(OBJDIR):
mkdir $@
Which also works for multiple directories, e.g..
OBJDIRS := $(sort $(dir $(OBJECTS)))
$(OBJDIRS):
mkdir $@
Adding $(OBJDIR)
as the first target works well.
Though the installer answer is a good answer, it is not always practical when dealing with software you did not write. A simple answer is to create the log and the event source using the PowerShell command New-EventLog (http://technet.microsoft.com/en-us/library/hh849768.aspx)
Run PowerShell as an Administrator and run the following command changing out the log name and source that you need.
New-EventLog -LogName Application -Source TFSAggregator
I used it to solve the Event Log Exception when Aggregator runs issue from codeplex.
You could set your _JAVA_OPTIONS
environmental variable. For example in bash this would do the trick:
export _JAVA_OPTIONS=-Djava.io.tmpdir=/new/tmp/dir
I put that into my bash login script and it seems to do the trick.
From Django docs :
To handle both of these situations, Django has a consistent way of processing filter() calls. Everything inside a single filter() call is applied simultaneously to filter out items matching all those requirements. Successive filter() calls further restrict the set of objects, but for multi-valued relations, they apply to any object linked to the primary model, not necessarily those objects that were selected by an earlier filter() call.
filter()
are applied simultaneously.
That means that doing :objs = Mymodel.objects.filter(a=True, b=False)
will return a queryset with raws from model Mymodel
where a=True
AND b=False
.
filter()
, in some case, will provide the same result. Doing :objs = Mymodel.objects.filter(a=True).filter(b=False)
will return a queryset with raws from model Mymodel
where a=True
AND b=False
too. Since you obtain "first" a queryset with records which have a=True
and then it's restricted to those who have b=False
at the same time.
filter()
comes when there are multi-valued relations
, which means you are going through other models (such as the example given in the docs, between Blog and Entry models). It is said that in that case (...) they apply to any object linked to the primary model, not necessarily those objects that were selected by an earlier filter() call.
Which means that it applies the successives filter()
on the target model directly, not on previous filter()
If I take the example from the docs :
Blog.objects.filter(entry__headline__contains='Lennon').filter(entry__pub_date__year=2008)
remember that it's the model Blog
that is filtered, not the Entry
. So it will treat the 2 filter()
independently.
It will, for instance, return a queryset with Blogs, that have entries that contain 'Lennon' (even if they are not from 2008) and entries that are from 2008 (even if their headline does not contain 'Lennon')
THIS ANSWER goes even further in the explanation. And the original question is similar.
A very simple way to do do sleep, that WILL be compatible with anything that runs Javascript... This code has been tested with something like 500 entries, CPU and memory usage still not visible on my web browsers.
Here one function that wait until the node becomes visible...
This function creates a new context function () {}
to avoid recursion. We placed a code that does the same as the caller code inside this new context. We use the function Timeout
to call our function after a few time second.
var get_hyper = function (node , maxcount , only_relation) {
if (node.offsetParent === null) {
// node is hidden
setTimeout(function () { get_hyper(node , maxcount , only_relation)}
,1000);
return;
};
// Enter here the code that wait that that the node is visible
// before getting executed.
};
Is there slight possibility you deleted default machine? But, first check if all files are there (OSX, similar on other systems)
brew install docker docker-compose docker-machine xhyve docker-machine-driver-xhyve
brew link docker docker-compose docker-machine xhyve docker-machine-driver-xhyve
sudo chown root:wheel /usr/local/opt/docker-machine-driver-xhyve/bin/docker-machine-driver-xhyve
sudo chmod u+s /usr/local/opt/docker-machine-driver-xhyve/bin/docker-machine-driver-xhyve
Also, install Docker App, as it much easier to maintain containers:
brew cask reinstall docker
ans start Docker app from finder (wait until service is fully started)
Then, check instalation with:
docker-machine ls
if no machines are present in list, create one and start it:
docker-machine create default
docker-machine start default
After this, build, compose and all other commands should work properly.
Checked solution is not accurate, sometimes mouse-right-click triggers right-swipe. after trying different plugins for swipe i found an almost perfect one.
i said "almost" because this plugin does not support future elements. so we would have to reinitialize the swipe call when the swipe content is changed by ajax or something. this plugin have lots of options to play with touch events like multi-finger-touch,pinch etc.
http://labs.rampinteractive.co.uk/touchSwipe/demos/index.html
$("#myCarousel").swipe( {
swipe:function(event, direction, distance, duration, fingerCount, fingerData) {
if(direction=='left'){
$(this).carousel('next');
}else if(direction=='right'){
$(this).carousel('prev');
}
}
});
function addSwipeTo(selector){
$(selector).swipe("destroy");
$(selector).swipe( {
swipe:function(event, direction, distance, duration, fingerCount, fingerData) {
if(direction=='left'){
$(this).carousel('next');
}else if(direction=='right'){
$(this).carousel('prev');
}
}
});
}
addSwipeTo("#myCarousel");
As the definition of Linkedlist says, it is a sequence and you are guaranteed to get the elements in order.
eg:
import java.util.LinkedList;
public class ForEachDemonstrater {
public static void main(String args[]) {
LinkedList<Character> pl = new LinkedList<Character>();
pl.add('j');
pl.add('a');
pl.add('v');
pl.add('a');
for (char s : pl)
System.out.print(s+"->");
}
}
You can use the "title attribute" for label tag.
<label title="Hello This Will Have Some Value">Hello...</label>
If you need more control over the looks,
1 . try http://getbootstrap.com/javascript/#tooltips as shown below. But you will need to include bootstrap.
<button type="button" class="btn btn-default" data-toggle="tooltip" data-placement="left" title="Hello This Will Have Some Value">Hello...</button>
2 . try https://jqueryui.com/tooltip/. But you will need to include jQueryUI.
<script type="text/javascript">
$(document).ready(function(){
$(this).tooltip();
});
</script>
Put your class name on the mat-form-field element. This works for all inputs.
The direct parent of your child is markerDiv, so you should call remove from markerDiv as so:
markerDiv.removeChild(myCoolDiv);
Alternatively, you may want to remove markerNode. Since that node was appended directly to videoContainer, it can be removed with:
document.getElementById("playerContainer").removeChild(markerDiv);
Now, the easiest general way to remove a node, if you are absolutely confident that you did insert it into the DOM, is this:
markerDiv.parentNode.removeChild(markerDiv);
This works for any node (just replace markerDiv with a different node), and finds the parent of the node directly in order to call remove from it. If you are unsure if you added it, double check if the parentNode is non-null before calling removeChild.
No, a view consists of a single SELECT
statement. You cannot create or drop tables in a view.
Maybe a common table expression (CTE) can solve your problem. CTEs are temporary result sets that are defined within the execution scope of a single statement and they can be used in views.
Example (taken from here) - you can think of the SalesBySalesPerson
CTE as a temporary table:
CREATE VIEW vSalesStaffQuickStats
AS
WITH SalesBySalesPerson (SalesPersonID, NumberOfOrders, MostRecentOrderDate)
AS
(
SELECT SalesPersonID, COUNT(*), MAX(OrderDate)
FROM Sales.SalesOrderHeader
GROUP BY SalesPersonID
)
SELECT E.EmployeeID,
EmployeeOrders = OS.NumberOfOrders,
EmployeeLastOrderDate = OS.MostRecentOrderDate,
E.ManagerID,
ManagerOrders = OM.NumberOfOrders,
ManagerLastOrderDate = OM.MostRecentOrderDate
FROM HumanResources.Employee AS E
INNER JOIN SalesBySalesPerson AS OS ON E.EmployeeID = OS.SalesPersonID
LEFT JOIN SalesBySalesPerson AS OM ON E.ManagerID = OM.SalesPersonID
GO
When getting the substring of a CLOB column and using a query tool that has size/buffer restrictions sometimes you would need to set the BUFFER to a larger size. For example while using SQL Plus use the SET BUFFER 10000
to set it to 10000 as the default is 4000.
Running the DBMS_LOB.substr
command you can also specify the amount of characters you want to return and the offset from which. So using DBMS_LOB.substr(column, 3000)
might restrict it to a small enough amount for the buffer.
See oracle documentation for more info on the substr command
DBMS_LOB.SUBSTR ( lob_loc IN CLOB CHARACTER SET ANY_CS, amount IN INTEGER := 32767, offset IN INTEGER := 1) RETURN VARCHAR2 CHARACTER SET lob_loc%CHARSET;
@page { margin: 0; }
works fine in Chrome and Firefox. I haven't found a way to fix IE through css. But you can go into Page Setup in IE on your own machine at and set the margins to 0. Press alt and then the file menu in the top left corner and you'll find Page Setup. This only works for the one machine at a time...
Right after you append data to the view add this single line:
yourScrollview.fullScroll(ScrollView.FOCUS_DOWN);
Connections have a close
method as specified in PEP-249 (Python Database API Specification v2.0):
import pyodbc
conn = pyodbc.connect('DRIVER=MySQL ODBC 5.1 driver;SERVER=localhost;DATABASE=spt;UID=who;PWD=testest')
csr = conn.cursor()
csr.close()
conn.close() #<--- Close the connection
Since the pyodbc
connection and cursor are both context managers, nowadays it would be more convenient (and preferable) to write this as:
import pyodbc
conn = pyodbc.connect('DRIVER=MySQL ODBC 5.1 driver;SERVER=localhost;DATABASE=spt;UID=who;PWD=testest')
with conn:
crs = conn.cursor()
do_stuff
# conn.commit() will automatically be called when Python leaves the outer `with` statement
# Neither crs.close() nor conn.close() will be called upon leaving the `with` statement!!
See https://github.com/mkleehammer/pyodbc/issues/43 for an explanation for why conn.close() is not called.
Note that unlike the original code, this causes conn.commit()
to be called. Use the outer with
statement to control when you want commit
to be called.
Also note that regardless of whether or not you use the with
statements, per the docs,
Connections are automatically closed when they are deleted (typically when they go out of scope) so you should not normally need to call [
conn.close()
], but you can explicitly close the connection if you wish.
and similarly for cursors (my emphasis):
Cursors are closed automatically when they are deleted (typically when they go out of scope), so calling [
csr.close()
] is not usually necessary.
could also happen when your local time is off (e.g. before certificate validation time), this was the case in my error...
One more jQuery solution
For a single stylesheet with id "css" try this:
$('#css').replaceWith('<link id="css" rel="stylesheet" href="css/main.css?t=' + Date.now() + '"></link>');
Wrap it in a function that has global scrope and you can use it from the Developer Console in Chrome or Firebug in Firefox:
var reloadCSS = function() {
$('#css').replaceWith('<link id="css" rel="stylesheet" href="css/main.css?t=' + Date.now() + '"></link>');
};
I like to give the users a bit of flexibility and trust, that they will get the format right, but I do want to enforce only digits and two decimals for currency
^[$\-\s]*[\d\,]*?([\.]\d{0,2})?\s*$
Takes care of:
$ 1.
-$ 1.00
$ -1.0
.1
.10
-$ 1,000,000.0
Of course it will also match:
$$--$1,92,9,29.1 => anyway after cleanup => -192,929.10
For micro-optimisation freaks:
if ($num % 6 != 0)
$num += 6 - $num % 6;
More evaluations of %
, but less branching/looping. :-P
This will also work great, u can do something else while a new tab handler the submit .
<form target="_blank">
<a href="#">Submit</a>
</form>
<script>
$('a').click(function () {
// do something you want ...
$('form').submit();
});
</script>
What others have forgotten is Ctrl+Shift+L for easy text search. It searches everywhere and it is fast and efficient. This might be a Sprint tool suit which is an extension of eclipse (and it might be available in newer versions)
you can use ClearContents. ex,
Range("X").Cells.ClearContents
Here is a solution am using with anular 6.
[readonly]="DateRelatedObject.bool_DatesEdit ? true : false"
plus above given answer
[attr.disabled]="valid == true ? true : null"
did't work for me plus be aware of using null cause it's expecting bool.
The number of distinct words (i.e. count of entries in the dictionary) can be found using the len()
function.
> a = {'foo':42, 'bar':69}
> len(a)
2
To get all the distinct words (i.e. the keys), use the .keys()
method.
> list(a.keys())
['foo', 'bar']
You can create a dict and pass this as the data param to the dataframe constructor:
In [235]:
df = pd.DataFrame({'Gene':s.index, 'count':s.values})
df
Out[235]:
Gene count
0 Ezh2 2
1 Hmgb 7
2 Irf1 1
Alternatively you can create a df from the series, you need to call reset_index
as the index will be used and then rename the columns:
In [237]:
df = pd.DataFrame(s).reset_index()
df.columns = ['Gene', 'count']
df
Out[237]:
Gene count
0 Ezh2 2
1 Hmgb 7
2 Irf1 1
Join the table with itself and give it two different aliases (A
and B
in the following example). This allows to compare different rows of the same table.
SELECT DISTINCT A.Id
FROM
Address A
INNER JOIN Address B
ON A.Id = B.Id AND A.[Adress Code] < B.[Adress Code]
WHERE
A.Address <> B.Address
The "less than" comparison <
ensures that you get 2 different addresses and you don't get the same 2 address codes twice. Using "not equal" <>
instead, would yield the codes as (1, 2) and (2, 1); each one of them for the A
alias and the B
alias in turn.
The join clause is responsible for the pairing of the rows where as the where-clause tests additional conditions.
The query above works with any address codes. If you want to compare addresses with specific address codes, you can change the query to
SELECT A.Id
FROM
Address A
INNER JOIN Address B
ON A.Id = B.Id
WHERE
A.[Adress Code] = 1 AND
B.[Adress Code] = 2 AND
A.Address <> B.Address
I imagine that this might be useful to find customers having a billing address (Adress Code = 1 as an example) differing from the delivery address (Adress Code = 2) .
You should rather look at View lifecycle: http://developer.android.com/reference/android/view/View.html Generally you should not know width and height for sure until your activity comes to onResume state.
If you're using FireFox, Fiddler's add-on will automatically configure it to not ignore localhost when capturing traffic. If traffic from localhost is still (or suddenly) not appearing, try disabling and re-enabling traffic capture from Fiddler to goad the add-on into fixing the proxy configuration.
Today I was looking for this and Mr Brandon Rude gave an excellent answer. Unfortunately, AsyncTask
is now depricated, you can still use it, but it gives you a warning which is very annoying. So an alternative is to use Executors
like this way (in kotlin
):
val someRunnable = object : Runnable{
override fun run() {
// todo: do your background tasks
requireActivity().runOnUiThread{
// update views / ui if you are in a fragment
};
/*
runOnUiThread {
// update ui if you are in an activity
}
* */
}
};
Executors.newSingleThreadExecutor().execute(someRunnable);
And in java
it looks like this:
Runnable someRunnable = new Runnable() {
@Override
public void run() {
// todo: background tasks
runOnUiThread(new Runnable() {
@Override
public void run() {
// todo: update your ui / view in activity
}
});
/*
requireActivity().runOnUiThread(new Runnable() {
@Override
public void run() {
// todo: update your ui / view in Fragment
}
});*/
}
};
Executors.newSingleThreadExecutor().execute(someRunnable);
To change default db folder C:\data\db
in windows, the command is:
--dbpath
For example:
\mongod --dbpath C:\myfolder
In a nutshell, it is your lockscreen.
PIN, pattern, face, password locks or the default lock (slide to unlock), but it is your lock screen.
You also can use src to switch to frame, here is what you can use:
driver.switchTo().frame(driver.findElement(By.xpath(".//iframe[@src='https://tssstrpms501.corp.trelleborg.com:12001/teamworks/process.lsw?zWorkflowState=1&zTaskId=4581&zResetContext=true&coachDebugTrace=none']")));
You can use AppendDataBoundItems=true
to easily add:
<asp:DropDownList ID="drpList" AppendDataBoundItems="true" runat="server">
<asp:ListItem Text="" Value="" />
</asp:DropDownList>
You will have to remember the timeout "Timer", cancel it, then restart it:
g_timer = null;
$(document).ready(function() {
startTimer();
});
function startTimer() {
g_timer = window.setTimeout(function() {
window.location.href = 'file.php';
}, 115000);
}
function onClick() {
clearTimeout(g_timer);
startTimer();
}
There's also the pygame.freetype
module which is more modern, works with more fonts and offers additional functionality.
Create a font object with pygame.freetype.SysFont()
or pygame.freetype.Font
if the font is inside of your game directory.
You can render the text either with the render
method similarly to the old pygame.font.Font.render
or directly onto the target surface with render_to
.
import pygame
import pygame.freetype # Import the freetype module.
pygame.init()
screen = pygame.display.set_mode((800, 600))
GAME_FONT = pygame.freetype.Font("your_font.ttf", 24)
running = True
while running:
for event in pygame.event.get():
if event.type == pygame.QUIT:
running = False
screen.fill((255,255,255))
# You can use `render` and then blit the text surface ...
text_surface, rect = GAME_FONT.render("Hello World!", (0, 0, 0))
screen.blit(text_surface, (40, 250))
# or just `render_to` the target surface.
GAME_FONT.render_to(screen, (40, 350), "Hello World!", (0, 0, 0))
pygame.display.flip()
pygame.quit()
Add this code into the css file:
input {
-webkit-appearance: none;
-moz-appearance: none;
appearance: none;
}
This will help.
None of the answers here worked for me out of the box, here is what worked for me:
Create pipes/keys.ts
with contents:
import { Pipe, PipeTransform } from '@angular/core';
@Pipe({name: 'keys'})
export class KeysPipe implements PipeTransform
{
transform(value:any, args:string[]): any {
let keys:any[] = [];
for (let key in value) {
keys.push({key: key, value: value[key]});
}
return keys;
}
}
Add to app.module.ts
(Your main module):
import { KeysPipe } from './pipes/keys';
and then add to your module declarations array something like this:
@NgModule({
declarations: [
KeysPipe
]
})
export class AppModule {}
Then in your view template you can use something like this:
<option *ngFor="let entry of (myData | keys)" value="{{ entry.key }}">{{ entry.value }}</option>
Here is a good reference I found if you want to read more.
I used pyenv uninstall my_virt_env_name
to delete the virual environment.
Note: I'm using pyenv-virtualenv installed through the install script.
Instead of typing each time, you can;
[1] Create a generic print method inside Spark Shell.
def p(rdd: org.apache.spark.rdd.RDD[_]) = rdd.foreach(println)
[2] Or even better, using implicits, you can add the function to RDD class to print its contents.
implicit class Printer(rdd: org.apache.spark.rdd.RDD[_]) {
def print = rdd.foreach(println)
}
Example usage:
val rdd = sc.parallelize(List(1,2,3,4)).map(_*2)
p(rdd) // 1
rdd.print // 2
Output:
2
6
4
8
Important
This only makes sense if you are working in local mode and with a small amount of data set. Otherwise, you either will not be able to see the results on the client or run out of memory because of the big dataset result.
Since a new question has just been closed against this: you shouldn't create Thread
objects yourself. Here's another way to do it:
public void method() {
Executors.newSingleThreadExecutor().submit(() -> {
// yourCode
});
}
You should probably retain the executor service between calls though.
check to make sure the variable is set. Then clean it before using it:
isset($_GET['var'])?$var=mysql_escape_string($_GET['var']):$var='SomeDefaualtValue';
Otherwise, assign it a default value ($var=''
is fine) to avoid the error you mentioned.
Looking at http.Request you can find the following member variables:
// HTTP defines that header names are case-insensitive.
// The request parser implements this by canonicalizing the
// name, making the first character and any characters
// following a hyphen uppercase and the rest lowercase.
//
// For client requests certain headers are automatically
// added and may override values in Header.
//
// See the documentation for the Request.Write method.
Header Header
// RemoteAddr allows HTTP servers and other software to record
// the network address that sent the request, usually for
// logging. This field is not filled in by ReadRequest and
// has no defined format. The HTTP server in this package
// sets RemoteAddr to an "IP:port" address before invoking a
// handler.
// This field is ignored by the HTTP client.
RemoteAddr string
You can use RemoteAddr
to get the remote client's IP address and port (the format is "IP:port"), which is the address of the original requestor or the last proxy (for example a load balancer which lives in front of your server).
This is all you have for sure.
Then you can investigate the headers, which are case-insensitive (per documentation above), meaning all of your examples will work and yield the same result:
req.Header.Get("X-Forwarded-For") // capitalisation
req.Header.Get("x-forwarded-for") // doesn't
req.Header.Get("X-FORWARDED-FOR") // matter
This is because internally http.Header.Get
will normalise the key for you. (If you want to access header map directly, and not through Get
, you would need to use http.CanonicalHeaderKey first.)
Finally, "X-Forwarded-For"
is probably the field you want to take a look at in order to grab more information about client's IP. This greatly depends on the HTTP software used on the remote side though, as client can put anything in there if it wishes to. Also, note the expected format of this field is the comma+space separated list of IP addresses. You will need to parse it a little bit to get a single IP of your choice (probably the first one in the list), for example:
// Assuming format is as expected
ips := strings.Split("10.0.0.1, 10.0.0.2, 10.0.0.3", ", ")
for _, ip := range ips {
fmt.Println(ip)
}
will produce:
10.0.0.1
10.0.0.2
10.0.0.3
Depending on the need for performance and amount of elements to be added, this might be an ok solution. If the amount of elements are high, the Arraylist
s reallocation of memory might be a bit slower than StringBuilder
.
None of these answers worked for me. This answer doesn't solve OP's issue but since this post is the only one that shows up on googling this issue, I'm sharing my answer here.
I came across this issue while writing unit tests for Android. The issue was that the activity that I was testing extended AppCompatActivity
instead of Activity
. To fix this, I was able to just replace AppCompatActivity
with Activity
since I didn't really need it. This might not be a viable solution for everyone, but hopefully knowing the root cause will help someone.
I believe you need to do this:
Option 2 Convert to the date format pointed out in Jon Skeet's answer and use that.
box-shadow: -15px 0px 17px -7px rgba(0,0,0,0.75);
The first px value is the "Horizontal Length" set to -15px to position the shadow towards the left, the next px value is set to 0 so the shadow top and bottom is centred to minimise the top and bottom shadow.
The third value(17px) is known as the blur radius. The higher the number, the more blurred the shadow will be. And then last px value -7px is The spread radius, a positive value increases the size of the shadow, a negative value decreases the size of the shadow, at -7px it keeps the shadow from appearing above and below the item.
reference: CSS Box Shadow Property
Done by having it like that:
view = inflater.inflate(R.layout.entry_detail, container, false);
TextView tp1= (TextView) view.findViewById(R.id.tp1);
LinearLayout layone= (LinearLayout) view.findViewById(R.id.layone);
tp1.setVisibility(View.VISIBLE);
layone.setVisibility(View.VISIBLE);
I was also curious if I can measure the speed of my script with apache abs or a construct / destruct php measure script or a php extension.
the last two have failed for me: they are approximate. after which I thought to try "ab" and "abs".
the command "ab -k -c 350 -n 20000 example.com/" is beautiful because it's all easier!
but did anyone think to "localhost" on any apache server for example www.apachefriends.org?
you should create a folder such as "bench" in root where you have 2 files: test "bench.php" and reference "void.php".
<?php
for($i=1;$i<50000;$i++){
print ('qwertyuiopasdfghjklzxcvbnm1234567890');
}
?>
<?php
?>
"c:\xampp\apache\bin\abs.exe" -n 10000 http://localhost/bench/void.php
"c:\xampp\apache\bin\abs.exe" -n 10000 http://localhost/bench/bench.php
pause
Now if you pay attention closely ...
the void script isn't produce zero results !!! SO THE CONCLUSION IS: from the second result the first result should be decreased!!!
here i got :
c:\xampp\htdocs\bench>"c:\xampp\apache\bin\abs.exe" -n 10000 http://localhost/bench/void.php
This is ApacheBench, Version 2.3 <$Revision: 1826891 $>
Copyright 1996 Adam Twiss, Zeus Technology Ltd, http://www.zeustech.net/
Licensed to The Apache Software Foundation, http://www.apache.org/
Benchmarking localhost (be patient)
Completed 1000 requests
Completed 2000 requests
Completed 3000 requests
Completed 4000 requests
Completed 5000 requests
Completed 6000 requests
Completed 7000 requests
Completed 8000 requests
Completed 9000 requests
Completed 10000 requests
Finished 10000 requests
Server Software: Apache/2.4.33
Server Hostname: localhost
Server Port: 80
Document Path: /bench/void.php
Document Length: 0 bytes
Concurrency Level: 1
Time taken for tests: 11.219 seconds
Complete requests: 10000
Failed requests: 0
Total transferred: 2150000 bytes
HTML transferred: 0 bytes
Requests per second: 891.34 [#/sec] (mean)
Time per request: 1.122 [ms] (mean)
Time per request: 1.122 [ms] (mean, across all concurrent requests)
Transfer rate: 187.15 [Kbytes/sec] received
Connection Times (ms)
min mean[+/-sd] median max
Connect: 0 0 0.3 0 1
Processing: 0 1 0.9 1 17
Waiting: 0 1 0.9 1 17
Total: 0 1 0.9 1 17
Percentage of the requests served within a certain time (ms)
50% 1
66% 1
75% 1
80% 1
90% 1
95% 2
98% 2
99% 3
100% 17 (longest request)
c:\xampp\htdocs\bench>"c:\xampp\apache\bin\abs.exe" -n 10000 http://localhost/bench/bench.php
This is ApacheBench, Version 2.3 <$Revision: 1826891 $>
Copyright 1996 Adam Twiss, Zeus Technology Ltd, http://www.zeustech.net/
Licensed to The Apache Software Foundation, http://www.apache.org/
Benchmarking localhost (be patient)
Completed 1000 requests
Completed 2000 requests
Completed 3000 requests
Completed 4000 requests
Completed 5000 requests
Completed 6000 requests
Completed 7000 requests
Completed 8000 requests
Completed 9000 requests
Completed 10000 requests
Finished 10000 requests
Server Software: Apache/2.4.33
Server Hostname: localhost
Server Port: 80
Document Path: /bench/bench.php
Document Length: 1799964 bytes
Concurrency Level: 1
Time taken for tests: 177.006 seconds
Complete requests: 10000
Failed requests: 0
Total transferred: 18001600000 bytes
HTML transferred: 17999640000 bytes
Requests per second: 56.50 [#/sec] (mean)
Time per request: 17.701 [ms] (mean)
Time per request: 17.701 [ms] (mean, across all concurrent requests)
Transfer rate: 99317.00 [Kbytes/sec] received
Connection Times (ms)
min mean[+/-sd] median max
Connect: 0 0 0.3 0 1
Processing: 12 17 3.2 17 90
Waiting: 0 1 1.1 1 26
Total: 13 18 3.2 18 90
Percentage of the requests served within a certain time (ms)
50% 18
66% 19
75% 19
80% 20
90% 21
95% 22
98% 23
99% 26
100% 90 (longest request)
c:\xampp\htdocs\bench>pause
Press any key to continue . . .
90-17= 73 the result i expect !
Let's fit the model:
> library(ISwR)
> fit <- lm(metabolic.rate ~ body.weight, rmr)
> summary(fit)
Call:
lm(formula = metabolic.rate ~ body.weight, data = rmr)
Residuals:
Min 1Q Median 3Q Max
-245.74 -113.99 -32.05 104.96 484.81
Coefficients:
Estimate Std. Error t value Pr(>|t|)
(Intercept) 811.2267 76.9755 10.539 2.29e-13 ***
body.weight 7.0595 0.9776 7.221 7.03e-09 ***
---
Signif. codes: 0 ‘***’ 0.001 ‘**’ 0.01 ‘*’ 0.05 ‘.’ 0.1 ‘ ’ 1
Residual standard error: 157.9 on 42 degrees of freedom
Multiple R-squared: 0.5539, Adjusted R-squared: 0.5433
F-statistic: 52.15 on 1 and 42 DF, p-value: 7.025e-09
The 95% confidence interval for the slope is the estimated coefficient (7.0595) ± two standard errors (0.9776).
This can be computed using confint
:
> confint(fit, 'body.weight', level=0.95)
2.5 % 97.5 %
body.weight 5.086656 9.0324
I definitely prefer the format
method more, as it is very flexible and can be easily extended to your custom classes by defining __format__
or the str
or repr
representations. For the sake of keeping it simple, i am using print
in the following examples, which can be replaced by sys.stdout.write
.
Simple Examples: alignment / filling
#Justify / ALign (left, mid, right)
print("{0:<10}".format("Guido")) # 'Guido '
print("{0:>10}".format("Guido")) # ' Guido'
print("{0:^10}".format("Guido")) # ' Guido '
We can add next to the align
specifies which are ^
, <
and >
a fill character to replace the space by any other character
print("{0:.^10}".format("Guido")) #..Guido...
Multiinput examples: align and fill many inputs
print("{0:.<20} {1:.>20} {2:.^20} ".format("Product", "Price", "Sum"))
#'Product............. ...............Price ........Sum.........'
Advanced Examples
If you have your custom classes, you can define it's str
or repr
representations as follows:
class foo(object):
def __str__(self):
return "...::4::.."
def __repr__(self):
return "...::12::.."
Now you can use the !s
(str) or !r
(repr) to tell python to call those defined methods. If nothing is defined, Python defaults to __format__
which can be overwritten as well.
x = foo()
print "{0!r:<10}".format(x) #'...::12::..'
print "{0!s:<10}".format(x) #'...::4::..'
Source: Python Essential Reference, David M. Beazley, 4th Edition
Just F.Y.I I pulled my hair out with this problem for hours.. finally I call my hosting provider and found that in my case using a cloud server that in the control panel for 1and1 they have a secondary firewall that you have to clone and add port 3306. Once added I got straight in..
If you go to your android-sdk/tools
folder I think you'll find a message :
The adb tool has moved to platform-tools/
If you don't see this directory in your SDK, launch the SDK and AVD Manager (execute the android tool) and install "Android SDK Platform-tools"
Please also update your PATH environment variable to include the platform-tools/ directory, so you can execute adb from any location.
So you should also add C:/android-sdk/platform-tools
to you environment path. Also after you modify the PATH
variable make sure that you start a new CommandPrompt
window.
Regarding how you log messages within code, I would opt for the second approach:
ILog log = LogManager.GetLogger(typeof(Bar));
log.Info("message");
Where messages sent to the log above will be 'named' using the fully-qualifed type Bar
, e.g.
MyNamespace.Foo.Bar [INFO] message
The advantage of this approach is that it is the de-facto standard for organising logging, it also allows you to filter your log messages by namespace. For example, you can specify that you want to log INFO level message, but raise the logging level for Bar
specifically to DEBUG:
<log4net>
<!-- appenders go here -->
<root>
<level value="INFO" />
<appender-ref ref="myLogAppender" />
</root>
<logger name="MyNamespace.Foo.Bar">
<level value="DEBUG" />
</logger>
</log4net>
The ability to filter your logging via name is a powerful feature of log4net, if you simply log all your messages to "myLog"
, you loose much of this power!
Regarding the EPiServer CMS, you should be able to use the above approach to specify a different logging level for the CMS and your own code.
For further reading, here is a codeproject article I wrote on logging:
Well I write a script which works very well.
> @echo off TITLE Modifying your HOSTS file COLOR F0 ECHO.
>
> :LOOP SET Choice= SET /P Choice="Do you want to modify HOSTS file ?
> (Y/N)"
>
> IF NOT '%Choice%'=='' SET Choice=%Choice:~0,1%
>
> ECHO. IF /I '%Choice%'=='Y' GOTO ACCEPTED IF /I '%Choice%'=='N' GOTO
> REJECTED ECHO Please type Y (for Yes) or N (for No) to proceed! ECHO.
> GOTO Loop
>
>
> :REJECTED ECHO Your HOSTS file was left
> unchanged>>%systemroot%\Temp\hostFileUpdate.log ECHO Finished. GOTO
> END
>
>
> :ACCEPTED SET NEWLINE=^& echo. ECHO Carrying out requested
> modifications to your HOSTS file FIND /C /I "www.youtube.com"
> %WINDIR%\system32\drivers\etc\hosts IF %ERRORLEVEL% NEQ 0 ECHO
> %NEWLINE%>>%WINDIR%\system32\drivers\etc\hosts IF %ERRORLEVEL% NEQ 0
> ECHO 127.0.0.1 www.youtube.com>>%WINDIR%\system32\drivers\etc\hosts
> FIND /C /I "youtube.com" %WINDIR%\system32\drivers\etc\hosts IF
> %ERRORLEVEL% NEQ 0 ECHO %NEWLINE%>>%WINDIR%\system32\drivers\etc\hosts
> IF %ERRORLEVEL% NEQ 0 ECHO 127.0.0.1
> youtube.com>>%WINDIR%\system32\drivers\etc\hosts FIND /C /I
> "www.zacebookpk.com" %WINDIR%\system32\drivers\etc\hosts IF
> %ERRORLEVEL% NEQ 0 ECHO %NEWLINE%>>%WINDIR%\system32\drivers\etc\hosts
> IF %ERRORLEVEL% NEQ 0 ECHO 127.0.0.1
> www.zacebookpk.com>>%WINDIR%\system32\drivers\etc\hosts FIND /C /I
> "zacebookpk.com" %WINDIR%\system32\drivers\etc\hosts IF %ERRORLEVEL%
> NEQ 0 ECHO %NEWLINE%>>%WINDIR%\system32\drivers\etc\hosts IF
> %ERRORLEVEL% NEQ 0 ECHO 127.0.0.1
> zacebookpk.com>>%WINDIR%\system32\drivers\etc\hosts FIND /C /I
> "www.proxysite.com" %WINDIR%\system32\drivers\etc\hosts IF
> %ERRORLEVEL% NEQ 0 ECHO %NEWLINE%>>%WINDIR%\system32\drivers\etc\hosts
> IF %ERRORLEVEL% NEQ 0 ECHO 127.0.0.1
> www.proxysite.com>>%WINDIR%\system32\drivers\etc\hosts FIND /C /I
> "www.proxfree.com" %WINDIR%\system32\drivers\etc\hosts IF %ERRORLEVEL%
> NEQ 0 ECHO %NEWLINE%>>%WINDIR%\system32\drivers\etc\hosts IF
> %ERRORLEVEL% NEQ 0 ECHO 127.0.0.1
> www.proxfree.com>>%WINDIR%\system32\drivers\etc\hosts FIND /C /I
> "www.hidemyass.com" %WINDIR%\system32\drivers\etc\hosts IF
> %ERRORLEVEL% NEQ 0 ECHO %NEWLINE%>>%WINDIR%\system32\drivers\etc\hosts
> IF %ERRORLEVEL% NEQ 0 ECHO 127.0.0.1
> www.hidemyass.com>>%WINDIR%\system32\drivers\etc\hosts FIND /C /I
> "www.freeyoutubeproxy.org" %WINDIR%\system32\drivers\etc\hosts IF
> %ERRORLEVEL% NEQ 0 ECHO %NEWLINE%>>%WINDIR%\system32\drivers\etc\hosts
> IF %ERRORLEVEL% NEQ 0 ECHO 127.0.0.1
> www.freeyoutubeproxy.org>>%WINDIR%\system32\drivers\etc\hosts FIND /C
> /I "www.facebook.com" %WINDIR%\system32\drivers\etc\hosts IF
> %ERRORLEVEL% NEQ 0 ECHO %NEWLINE%>>%WINDIR%\system32\drivers\etc\hosts
> IF %ERRORLEVEL% NEQ 0 ECHO 127.0.0.1
> www.facebook.com>>%WINDIR%\system32\drivers\etc\hosts FIND /C /I
> "facebook.com" %WINDIR%\system32\drivers\etc\hosts IF %ERRORLEVEL% NEQ
> 0 ECHO %NEWLINE%>>%WINDIR%\system32\drivers\etc\hosts IF %ERRORLEVEL%
> NEQ 0 ECHO 127.0.0.1
> facebook.com>>%WINDIR%\system32\drivers\etc\hosts FIND /C /I
> "www.4everproxy.com " %WINDIR%\system32\drivers\etc\hosts IF
> %ERRORLEVEL% NEQ 0 ECHO %NEWLINE%>>%WINDIR%\system32\drivers\etc\hosts
> IF %ERRORLEVEL% NEQ 0 ECHO 127.0.0.1 www.4everproxy.com
> >>%WINDIR%\system32\drivers\etc\hosts FIND /C /I "4everproxy.com " %WINDIR%\system32\drivers\etc\hosts IF %ERRORLEVEL% NEQ 0 ECHO
> %NEWLINE%>>%WINDIR%\system32\drivers\etc\hosts IF %ERRORLEVEL% NEQ 0
> ECHO 127.0.0.1 4everproxy.com >>%WINDIR%\system32\drivers\etc\hosts
> FIND /C /I "proxysite.com" %WINDIR%\system32\drivers\etc\hosts IF
> %ERRORLEVEL% NEQ 0 ECHO %NEWLINE%>>%WINDIR%\system32\drivers\etc\hosts
> IF %ERRORLEVEL% NEQ 0 ECHO 127.0.0.1
> proxysite.com>>%WINDIR%\system32\drivers\etc\hosts FIND /C /I
> "proxfree.com" %WINDIR%\system32\drivers\etc\hosts IF %ERRORLEVEL% NEQ
> 0 ECHO %NEWLINE%>>%WINDIR%\system32\drivers\etc\hosts IF %ERRORLEVEL%
> NEQ 0 ECHO 127.0.0.1
> proxfree.com>>%WINDIR%\system32\drivers\etc\hosts FIND /C /I
> "hidemyass.com" %WINDIR%\system32\drivers\etc\hosts IF %ERRORLEVEL%
> NEQ 0 ECHO %NEWLINE%>>%WINDIR%\system32\drivers\etc\hosts IF
> %ERRORLEVEL% NEQ 0 ECHO 127.0.0.1
> hidemyass.com>>%WINDIR%\system32\drivers\etc\hosts FIND /C /I
> "freeyoutubeproxy.org" %WINDIR%\system32\drivers\etc\hosts IF
> %ERRORLEVEL% NEQ 0 ECHO %NEWLINE%>>%WINDIR%\system32\drivers\etc\hosts
> IF %ERRORLEVEL% NEQ 0 ECHO 127.0.0.1
> freeyoutubeproxy.org>>%WINDIR%\system32\drivers\etc\hosts FIND /C /I
> "unblockvideos.com" %WINDIR%\system32\drivers\etc\hosts IF
> %ERRORLEVEL% NEQ 0 ECHO %NEWLINE%>>%WINDIR%\system32\drivers\etc\hosts
> IF %ERRORLEVEL% NEQ 0 ECHO 127.0.0.1
> unblockvideos.com>>%WINDIR%\system32\drivers\etc\hosts FIND /C /I
> "proxyone.net" %WINDIR%\system32\drivers\etc\hosts IF %ERRORLEVEL% NEQ
> 0 ECHO %NEWLINE%>>%WINDIR%\system32\drivers\etc\hosts IF %ERRORLEVEL%
> NEQ 0 ECHO 127.0.0.1
> proxyone.net>>%WINDIR%\system32\drivers\etc\hosts FIND /C /I
> "kuvia.eu" %WINDIR%\system32\drivers\etc\hosts IF %ERRORLEVEL% NEQ 0
> ECHO %NEWLINE%>>%WINDIR%\system32\drivers\etc\hosts IF %ERRORLEVEL%
> NEQ 0 ECHO 127.0.0.1 kuvia.eu>>%WINDIR%\system32\drivers\etc\hosts
> FIND /C /I "kuvia.eu/facebook-proxy"
> %WINDIR%\system32\drivers\etc\hosts IF %ERRORLEVEL% NEQ 0 ECHO
> %NEWLINE%>>%WINDIR%\system32\drivers\etc\hosts IF %ERRORLEVEL% NEQ 0
> ECHO 127.0.0.1
> kuvia.eu/facebook-proxy>>%WINDIR%\system32\drivers\etc\hosts FIND /C
> /I "hidemytraxproxy.ca" %WINDIR%\system32\drivers\etc\hosts IF
> %ERRORLEVEL% NEQ 0 ECHO %NEWLINE%>>%WINDIR%\system32\drivers\etc\hosts
> IF %ERRORLEVEL% NEQ 0 ECHO 127.0.0.1
> hidemytraxproxy.ca>>%WINDIR%\system32\drivers\etc\hosts FIND /C /I
> "github.com" %WINDIR%\system32\drivers\etc\hosts IF %ERRORLEVEL% NEQ 0
> ECHO %NEWLINE%>>%WINDIR%\system32\drivers\etc\hosts IF %ERRORLEVEL%
> NEQ 0 ECHO 127.0.0.1
> github.com>>%WINDIR%\system32\drivers\etc\hosts FIND /C /I
> "funproxy.net" %WINDIR%\system32\drivers\etc\hosts IF %ERRORLEVEL% NEQ
> 0 ECHO %NEWLINE%>>%WINDIR%\system32\drivers\etc\hosts IF %ERRORLEVEL%
> NEQ 0 ECHO 127.0.0.1
> funproxy.net>>%WINDIR%\system32\drivers\etc\hosts FIND /C /I
> "en.wikipedia.org" %WINDIR%\system32\drivers\etc\hosts IF %ERRORLEVEL%
> NEQ 0 ECHO %NEWLINE%>>%WINDIR%\system32\drivers\etc\hosts IF
> %ERRORLEVEL% NEQ 0 ECHO 127.0.0.1
> en.wikipedia.org>>%WINDIR%\system32\drivers\etc\hosts FIND /C /I
> "wikipedia.org" %WINDIR%\system32\drivers\etc\hosts IF %ERRORLEVEL%
> NEQ 0 ECHO %NEWLINE%>>%WINDIR%\system32\drivers\etc\hosts IF
> %ERRORLEVEL% NEQ 0 ECHO 127.0.0.1
> wikipedia.org>>%WINDIR%\system32\drivers\etc\hosts FIND /C /I
> "dronten.proxylistpro.com" %WINDIR%\system32\drivers\etc\hosts IF
> %ERRORLEVEL% NEQ 0 ECHO %NEWLINE%>>%WINDIR%\system32\drivers\etc\hosts
> IF %ERRORLEVEL% NEQ 0 ECHO 127.0.0.1
> dronten.proxylistpro.com>>%WINDIR%\system32\drivers\etc\hosts FIND /C
> /I "proxylistpro.com" %WINDIR%\system32\drivers\etc\hosts IF
> %ERRORLEVEL% NEQ 0 ECHO %NEWLINE%>>%WINDIR%\system32\drivers\etc\hosts
> IF %ERRORLEVEL% NEQ 0 ECHO 127.0.0.1
> proxylistpro.com>>%WINDIR%\system32\drivers\etc\hosts FIND /C /I
> "zfreez.com" %WINDIR%\system32\drivers\etc\hosts IF %ERRORLEVEL% NEQ 0
> ECHO %NEWLINE%>>%WINDIR%\system32\drivers\etc\hosts IF %ERRORLEVEL%
> NEQ 0 ECHO 127.0.0.1
> zfreez.com>>%WINDIR%\system32\drivers\etc\hosts FIND /C /I
> "zendproxy.com" %WINDIR%\system32\drivers\etc\hosts IF %ERRORLEVEL%
> NEQ 0 ECHO %NEWLINE%>>%WINDIR%\system32\drivers\etc\hosts IF
> %ERRORLEVEL% NEQ 0 ECHO 127.0.0.1
> zendproxy.com>>%WINDIR%\system32\drivers\etc\hosts FIND /C /I
> "zalmos.com" %WINDIR%\system32\drivers\etc\hosts IF %ERRORLEVEL% NEQ 0
> ECHO %NEWLINE%>>%WINDIR%\system32\drivers\etc\hosts IF %ERRORLEVEL%
> NEQ 0 ECHO 127.0.0.1
> zalmos.com>>%WINDIR%\system32\drivers\etc\hosts FIND /C /I
> "zacebookpk.com" %WINDIR%\system32\drivers\etc\hosts IF %ERRORLEVEL%
> NEQ 0 ECHO %NEWLINE%>>%WINDIR%\system32\drivers\etc\hosts IF
> %ERRORLEVEL% NEQ 0 ECHO 127.0.0.1
> zacebookpk.com>>%WINDIR%\system32\drivers\etc\hosts FIND /C /I
> "youtubeunblockproxy.com" %WINDIR%\system32\drivers\etc\hosts IF
> %ERRORLEVEL% NEQ 0 ECHO %NEWLINE%>>%WINDIR%\system32\drivers\etc\hosts
> IF %ERRORLEVEL% NEQ 0 ECHO 127.0.0.1
> youtubeunblockproxy.com>>%WINDIR%\system32\drivers\etc\hosts FIND /C
> /I "youtubefreeproxy.net" %WINDIR%\system32\drivers\etc\hosts IF
> %ERRORLEVEL% NEQ 0 ECHO %NEWLINE%>>%WINDIR%\system32\drivers\etc\hosts
> IF %ERRORLEVEL% NEQ 0 ECHO 127.0.0.1
> youtubefreeproxy.net>>%WINDIR%\system32\drivers\etc\hosts FIND /C /I
> "youliaoren.com" %WINDIR%\system32\drivers\etc\hosts IF %ERRORLEVEL%
> NEQ 0 ECHO %NEWLINE%>>%WINDIR%\system32\drivers\etc\hosts IF
> %ERRORLEVEL% NEQ 0 ECHO 127.0.0.1
> youliaoren.com>>%WINDIR%\system32\drivers\etc\hosts FIND /C /I
> "xitenow.com" %WINDIR%\system32\drivers\etc\hosts IF %ERRORLEVEL% NEQ
> 0 ECHO %NEWLINE%>>%WINDIR%\system32\drivers\etc\hosts IF %ERRORLEVEL%
> NEQ 0 ECHO 127.0.0.1
> xitenow.com>>%WINDIR%\system32\drivers\etc\hosts FIND /C /I
> "www.youtubeproxy.pk" %WINDIR%\system32\drivers\etc\hosts IF
> %ERRORLEVEL% NEQ 0 ECHO %NEWLINE%>>%WINDIR%\system32\drivers\etc\hosts
> IF %ERRORLEVEL% NEQ 0 ECHO 127.0.0.1
> www.youtubeproxy.pk>>%WINDIR%\system32\drivers\etc\hosts FIND /C /I
> "youtubeproxy.pk" %WINDIR%\system32\drivers\etc\hosts IF %ERRORLEVEL%
> NEQ 0 ECHO %NEWLINE%>>%WINDIR%\system32\drivers\etc\hosts IF
> %ERRORLEVEL% NEQ 0 ECHO 127.0.0.1
> youtubeproxy.pk>>%WINDIR%\system32\drivers\etc\hosts FIND /C /I
> "www.youproxytube.com" %WINDIR%\system32\drivers\etc\hosts IF
> %ERRORLEVEL% NEQ 0 ECHO %NEWLINE%>>%WINDIR%\system32\drivers\etc\hosts
> IF %ERRORLEVEL% NEQ 0 ECHO 127.0.0.1
> www.youproxytube.com>>%WINDIR%\system32\drivers\etc\hosts FIND /C /I
> "www.webmasterview.com" %WINDIR%\system32\drivers\etc\hosts IF
> %ERRORLEVEL% NEQ 0 ECHO %NEWLINE%>>%WINDIR%\system32\drivers\etc\hosts
> IF %ERRORLEVEL% NEQ 0 ECHO 127.0.0.1
> www.webmasterview.com>>%WINDIR%\system32\drivers\etc\hosts FIND /C /I
> "webmasterview.com" %WINDIR%\system32\drivers\etc\hosts IF
> %ERRORLEVEL% NEQ 0 ECHO %NEWLINE%>>%WINDIR%\system32\drivers\etc\hosts
> IF %ERRORLEVEL% NEQ 0 ECHO 127.0.0.1
> webmasterview.com>>%WINDIR%\system32\drivers\etc\hosts FIND /C /I
> "youproxytube.com" %WINDIR%\system32\drivers\etc\hosts IF %ERRORLEVEL%
> NEQ 0 ECHO %NEWLINE%>>%WINDIR%\system32\drivers\etc\hosts IF
> %ERRORLEVEL% NEQ 0 ECHO 127.0.0.1
> youproxytube.com>>%WINDIR%\system32\drivers\etc\hosts FIND /C /I
> "www.vobas.com" %WINDIR%\system32\drivers\etc\hosts IF %ERRORLEVEL%
> NEQ 0 ECHO %NEWLINE%>>%WINDIR%\system32\drivers\etc\hosts IF
> %ERRORLEVEL% NEQ 0 ECHO 127.0.0.1
> www.vobas.com>>%WINDIR%\system32\drivers\etc\hosts FIND /C /I
> "vobas.com" %WINDIR%\system32\drivers\etc\hosts IF %ERRORLEVEL% NEQ 0
> ECHO %NEWLINE%>>%WINDIR%\system32\drivers\etc\hosts IF %ERRORLEVEL%
> NEQ 0 ECHO 127.0.0.1 vobas.com>>%WINDIR%\system32\drivers\etc\hosts
> FIND /C /I "www.unblockmyweb.com" %WINDIR%\system32\drivers\etc\hosts
> IF %ERRORLEVEL% NEQ 0 ECHO
> %NEWLINE%>>%WINDIR%\system32\drivers\etc\hosts IF %ERRORLEVEL% NEQ 0
> ECHO 127.0.0.1
> www.unblockmyweb.com>>%WINDIR%\system32\drivers\etc\hosts FIND /C /I
> "unblockmyweb.com" %WINDIR%\system32\drivers\etc\hosts IF %ERRORLEVEL%
> NEQ 0 ECHO %NEWLINE%>>%WINDIR%\system32\drivers\etc\hosts IF
> %ERRORLEVEL% NEQ 0 ECHO 127.0.0.1
> unblockmyweb.com>>%WINDIR%\system32\drivers\etc\hosts FIND /C /I
> "www.unblocker.yt" %WINDIR%\system32\drivers\etc\hosts IF %ERRORLEVEL%
> NEQ 0 ECHO %NEWLINE%>>%WINDIR%\system32\drivers\etc\hosts IF
> %ERRORLEVEL% NEQ 0 ECHO 127.0.0.1
> www.unblocker.yt>>%WINDIR%\system32\drivers\etc\hosts FIND /C /I
> "unblocker.yt" %WINDIR%\system32\drivers\etc\hosts IF %ERRORLEVEL% NEQ
> 0 ECHO %NEWLINE%>>%WINDIR%\system32\drivers\etc\hosts IF %ERRORLEVEL%
> NEQ 0 ECHO 127.0.0.1
> unblocker.yt>>%WINDIR%\system32\drivers\etc\hosts FIND /C /I
> "www.unblock.pk" %WINDIR%\system32\drivers\etc\hosts IF %ERRORLEVEL%
> NEQ 0 ECHO %NEWLINE%>>%WINDIR%\system32\drivers\etc\hosts IF
> %ERRORLEVEL% NEQ 0 ECHO 127.0.0.1
> www.unblock.pk>>%WINDIR%\system32\drivers\etc\hosts FIND /C /I
> "unblock.pk" %WINDIR%\system32\drivers\etc\hosts IF %ERRORLEVEL% NEQ 0
> ECHO %NEWLINE%>>%WINDIR%\system32\drivers\etc\hosts IF %ERRORLEVEL%
> NEQ 0 ECHO 127.0.0.1
> unblock.pk>>%WINDIR%\system32\drivers\etc\hosts FIND /C /I
> "www.techgyd.com" %WINDIR%\system32\drivers\etc\hosts IF %ERRORLEVEL%
> NEQ 0 ECHO %NEWLINE%>>%WINDIR%\system32\drivers\etc\hosts IF
> %ERRORLEVEL% NEQ 0 ECHO 127.0.0.1
> www.techgyd.com>>%WINDIR%\system32\drivers\etc\hosts FIND /C /I
> "techgyd.com" %WINDIR%\system32\drivers\etc\hosts IF %ERRORLEVEL% NEQ
> 0 ECHO %NEWLINE%>>%WINDIR%\system32\drivers\etc\hosts IF %ERRORLEVEL%
> NEQ 0 ECHO 127.0.0.1
> techgyd.com>>%WINDIR%\system32\drivers\etc\hosts FIND /C /I
> "www.snapdeal.com" %WINDIR%\system32\drivers\etc\hosts IF %ERRORLEVEL%
> NEQ 0 ECHO %NEWLINE%>>%WINDIR%\system32\drivers\etc\hosts IF
> %ERRORLEVEL% NEQ 0 ECHO 127.0.0.1
> www.snapdeal.com>>%WINDIR%\system32\drivers\etc\hosts FIND /C /I
> "snapdeal.com" %WINDIR%\system32\drivers\etc\hosts IF %ERRORLEVEL% NEQ
> 0 ECHO %NEWLINE%>>%WINDIR%\system32\drivers\etc\hosts IF %ERRORLEVEL%
> NEQ 0 ECHO 127.0.0.1
> snapdeal.com>>%WINDIR%\system32\drivers\etc\hosts FIND /C /I
> "www.site2unblock.com" %WINDIR%\system32\drivers\etc\hosts IF
> %ERRORLEVEL% NEQ 0 ECHO %NEWLINE%>>%WINDIR%\system32\drivers\etc\hosts
> IF %ERRORLEVEL% NEQ 0 ECHO 127.0.0.1
> www.site2unblock.com>>%WINDIR%\system32\drivers\etc\hosts FIND /C /I
> "site2unblock.com" %WINDIR%\system32\drivers\etc\hosts IF %ERRORLEVEL%
> NEQ 0 ECHO %NEWLINE%>>%WINDIR%\system32\drivers\etc\hosts IF
> %ERRORLEVEL% NEQ 0 ECHO 127.0.0.1
> site2unblock.com>>%WINDIR%\system32\drivers\etc\hosts FIND /C /I
> "www.shopclues.com" %WINDIR%\system32\drivers\etc\hosts IF
> %ERRORLEVEL% NEQ 0 ECHO %NEWLINE%>>%WINDIR%\system32\drivers\etc\hosts
> IF %ERRORLEVEL% NEQ 0 ECHO 127.0.0.1
> www.shopclues.com>>%WINDIR%\system32\drivers\etc\hosts FIND /C /I
> "shopclues.com" %WINDIR%\system32\drivers\etc\hosts IF %ERRORLEVEL%
> NEQ 0 ECHO %NEWLINE%>>%WINDIR%\system32\drivers\etc\hosts IF
> %ERRORLEVEL% NEQ 0 ECHO 127.0.0.1
> shopclues.com>>%WINDIR%\system32\drivers\etc\hosts FIND /C /I
> "www.proxypk.com" %WINDIR%\system32\drivers\etc\hosts IF %ERRORLEVEL%
> NEQ 0 ECHO %NEWLINE%>>%WINDIR%\system32\drivers\etc\hosts IF
> %ERRORLEVEL% NEQ 0 ECHO 127.0.0.1
> www.proxypk.com>>%WINDIR%\system32\drivers\etc\hosts FIND /C /I
> "proxypk.com" %WINDIR%\system32\drivers\etc\hosts IF %ERRORLEVEL% NEQ
> 0 ECHO %NEWLINE%>>%WINDIR%\system32\drivers\etc\hosts IF %ERRORLEVEL%
> NEQ 0 ECHO 127.0.0.1
> proxypk.com>>%WINDIR%\system32\drivers\etc\hosts FIND /C /I
> "www.proxay.co.uk" %WINDIR%\system32\drivers\etc\hosts IF %ERRORLEVEL%
> NEQ 0 ECHO %NEWLINE%>>%WINDIR%\system32\drivers\etc\hosts IF
> %ERRORLEVEL% NEQ 0 ECHO 127.0.0.1
> www.proxay.co.uk>>%WINDIR%\system32\drivers\etc\hosts FIND /C /I
> "proxay.co.uk" %WINDIR%\system32\drivers\etc\hosts IF %ERRORLEVEL% NEQ
> 0 ECHO %NEWLINE%>>%WINDIR%\system32\drivers\etc\hosts IF %ERRORLEVEL%
> NEQ 0 ECHO 127.0.0.1
> proxay.co.uk>>%WINDIR%\system32\drivers\etc\hosts FIND /C /I
> "www.myntra.com" %WINDIR%\system32\drivers\etc\hosts IF %ERRORLEVEL%
> NEQ 0 ECHO %NEWLINE%>>%WINDIR%\system32\drivers\etc\hosts IF
> %ERRORLEVEL% NEQ 0 ECHO 127.0.0.1
> www.myntra.com>>%WINDIR%\system32\drivers\etc\hosts FIND /C /I
> "myntra.com" %WINDIR%\system32\drivers\etc\hosts IF %ERRORLEVEL% NEQ 0
> ECHO %NEWLINE%>>%WINDIR%\system32\drivers\etc\hosts IF %ERRORLEVEL%
> NEQ 0 ECHO 127.0.0.1
> myntra.com>>%WINDIR%\system32\drivers\etc\hosts FIND /C /I
> "www.maddw.com" %WINDIR%\system32\drivers\etc\hosts IF %ERRORLEVEL%
> NEQ 0 ECHO %NEWLINE%>>%WINDIR%\system32\drivers\etc\hosts IF
> %ERRORLEVEL% NEQ 0 ECHO 127.0.0.1
> www.maddw.com>>%WINDIR%\system32\drivers\etc\hosts FIND /C /I
> "maddw.com" %WINDIR%\system32\drivers\etc\hosts IF %ERRORLEVEL% NEQ 0
> ECHO %NEWLINE%>>%WINDIR%\system32\drivers\etc\hosts IF %ERRORLEVEL%
> NEQ 0 ECHO 127.0.0.1 maddw.com>>%WINDIR%\system32\drivers\etc\hosts
> FIND /C /I "www.lenskart.com" %WINDIR%\system32\drivers\etc\hosts IF
> %ERRORLEVEL% NEQ 0 ECHO %NEWLINE%>>%WINDIR%\system32\drivers\etc\hosts
> IF %ERRORLEVEL% NEQ 0 ECHO 127.0.0.1
> www.lenskart.com>>%WINDIR%\system32\drivers\etc\hosts FIND /C /I
> "lenskart.com" %WINDIR%\system32\drivers\etc\hosts IF %ERRORLEVEL% NEQ
> 0 ECHO %NEWLINE%>>%WINDIR%\system32\drivers\etc\hosts IF %ERRORLEVEL%
> NEQ 0 ECHO 127.0.0.1
> lenskart.com>>%WINDIR%\system32\drivers\etc\hosts FIND /C /I
> "www.kproxy.com" %WINDIR%\system32\drivers\etc\hosts IF %ERRORLEVEL%
> NEQ 0 ECHO %NEWLINE%>>%WINDIR%\system32\drivers\etc\hosts IF
> %ERRORLEVEL% NEQ 0 ECHO 127.0.0.1
> www.kproxy.com>>%WINDIR%\system32\drivers\etc\hosts FIND /C /I
> "kproxy.com" %WINDIR%\system32\drivers\etc\hosts IF %ERRORLEVEL% NEQ 0
> ECHO %NEWLINE%>>%WINDIR%\system32\drivers\etc\hosts IF %ERRORLEVEL%
> NEQ 0 ECHO 127.0.0.1
> kproxy.com>>%WINDIR%\system32\drivers\etc\hosts FIND /C /I
> "www.jabong.com" %WINDIR%\system32\drivers\etc\hosts IF %ERRORLEVEL%
> NEQ 0 ECHO %NEWLINE%>>%WINDIR%\system32\drivers\etc\hosts IF
> %ERRORLEVEL% NEQ 0 ECHO 127.0.0.1
> www.jabong.com>>%WINDIR%\system32\drivers\etc\hosts FIND /C /I
> "jabong.com" %WINDIR%\system32\drivers\etc\hosts IF %ERRORLEVEL% NEQ 0
> ECHO %NEWLINE%>>%WINDIR%\system32\drivers\etc\hosts IF %ERRORLEVEL%
> NEQ 0 ECHO 127.0.0.1
> jabong.com>>%WINDIR%\system32\drivers\etc\hosts FIND /C /I
> "www.flipkart.com" %WINDIR%\system32\drivers\etc\hosts IF %ERRORLEVEL%
> NEQ 0 ECHO %NEWLINE%>>%WINDIR%\system32\drivers\etc\hosts IF
> %ERRORLEVEL% NEQ 0 ECHO 127.0.0.1
> www.flipkart.com>>%WINDIR%\system32\drivers\etc\hosts FIND /C /I
> "flipkart.com" %WINDIR%\system32\drivers\etc\hosts IF %ERRORLEVEL% NEQ
> 0 ECHO %NEWLINE%>>%WINDIR%\system32\drivers\etc\hosts IF %ERRORLEVEL%
> NEQ 0 ECHO 127.0.0.1
> flipkart.com>>%WINDIR%\system32\drivers\etc\hosts FIND /C /I
> "www.facebook-proxyserver.com" %WINDIR%\system32\drivers\etc\hosts IF
> %ERRORLEVEL% NEQ 0 ECHO %NEWLINE%>>%WINDIR%\system32\drivers\etc\hosts
> IF %ERRORLEVEL% NEQ 0 ECHO 127.0.0.1
> www.facebook-proxyserver.com>>%WINDIR%\system32\drivers\etc\hosts FIND
> /C /I "facebook-proxyserver.com" %WINDIR%\system32\drivers\etc\hosts
> IF %ERRORLEVEL% NEQ 0 ECHO
> %NEWLINE%>>%WINDIR%\system32\drivers\etc\hosts IF %ERRORLEVEL% NEQ 0
> ECHO 127.0.0.1
> facebook-proxyserver.com>>%WINDIR%\system32\drivers\etc\hosts FIND /C
> /I "www.dontfilter.us" %WINDIR%\system32\drivers\etc\hosts IF
> %ERRORLEVEL% NEQ 0 ECHO %NEWLINE%>>%WINDIR%\system32\drivers\etc\hosts
> IF %ERRORLEVEL% NEQ 0 ECHO 127.0.0.1
> www.dontfilter.us>>%WINDIR%\system32\drivers\etc\hosts FIND /C /I
> "dontfilter.us" %WINDIR%\system32\drivers\etc\hosts IF %ERRORLEVEL%
> NEQ 0 ECHO %NEWLINE%>>%WINDIR%\system32\drivers\etc\hosts IF
> %ERRORLEVEL% NEQ 0 ECHO 127.0.0.1
> dontfilter.us>>%WINDIR%\system32\drivers\etc\hosts FIND /C /I
> "www.dolopo.net" %WINDIR%\system32\drivers\etc\hosts IF %ERRORLEVEL%
> NEQ 0 ECHO %NEWLINE%>>%WINDIR%\system32\drivers\etc\hosts IF
> %ERRORLEVEL% NEQ 0 ECHO 127.0.0.1
> www.dolopo.net>>%WINDIR%\system32\drivers\etc\hosts ECHO Finished GOTO
> END
>
>
> :END ECHO. ping -n 11 127.0.0.1 > nul EXIT
A lot of years after... I like this one:
For x = LBound(arr) To UBound(arr): Do
sname = arr(x)
If instr(sname, "Configuration item") Then Exit Do
'// other code to copy past and do various stuff
Loop While False: Next x
I was thinking that it might be useful to compare the runtimes of the different approaches so I made a benchmark (using simple_benchmark library)
I) Benchmark having tuples with 2 elements
As you may expect to select the first element from tuples by index 0
shows to be the fastest solution very close to the unpacking solution by expecting exactly 2 values
import operator
import random
from simple_benchmark import BenchmarkBuilder
b = BenchmarkBuilder()
@b.add_function()
def rakesh_by_index(l):
return [i[0] for i in l]
@b.add_function()
def wayneSan_zip(l):
return list(list(zip(*l))[0])
@b.add_function()
def bcattle_itemgetter(l):
return list(map(operator.itemgetter(0), l))
@b.add_function()
def ssoler_upacking(l):
return [idx for idx, val in l]
@b.add_function()
def kederrack_unpacking(l):
return [f for f, *_ in l]
@b.add_arguments('Number of tuples')
def argument_provider():
for exp in range(2, 21):
size = 2**exp
yield size, [(random.choice(range(100)), random.choice(range(100))) for _ in range(size)]
r = b.run()
r.plot()
II) Benchmark having tuples with 2 or more elements
import operator
import random
from simple_benchmark import BenchmarkBuilder
b = BenchmarkBuilder()
@b.add_function()
def kederrack_unpacking(l):
return [f for f, *_ in l]
@b.add_function()
def rakesh_by_index(l):
return [i[0] for i in l]
@b.add_function()
def wayneSan_zip(l):
return list(list(zip(*l))[0])
@b.add_function()
def bcattle_itemgetter(l):
return list(map(operator.itemgetter(0), l))
@b.add_arguments('Number of tuples')
def argument_provider():
for exp in range(2, 21):
size = 2**exp
yield size, [tuple(random.choice(range(100)) for _
in range(random.choice(range(2, 100)))) for _ in range(size)]
from pylab import rcParams
rcParams['figure.figsize'] = 12, 7
r = b.run()
r.plot()
Like the following. It will make the user database owner.
EXEC sp_addrolemember N'db_owner', N'USerNAme'
var iframeInner = jQuery(iframe).find('iframe').contents();
var iframeContent = jQuery(iframeInner).contents().find('#element');
iframeInner contains elements from
<div id="element">other markup goes here</div>
and iframeContent will find for elements which are inside of
<div id="element">other markup goes here</div>
(find doesn't search on current element) that's why it is returning null.
Your problem is that, if the user clicks cancel, operationType
is null and thus throws a NullPointerException. I would suggest that you move
if (operationType.equalsIgnoreCase("Q"))
to the beginning of the group of if statements, and then change it to
if(operationType==null||operationType.equalsIgnoreCase("Q")).
This will make the program exit just as if the user had selected the quit option when the cancel button is pushed.
Then, change all the rest of the ifs to else ifs. This way, once the program sees whether or not the input is null, it doesn't try to call anything else on operationType. This has the added benefit of making it more efficient - once the program sees that the input is one of the options, it won't bother checking it against the rest of them.
Ctrl+Shift+D, but you have to put focus on the script output panel first...which you can do via the KB.
Run script.
Alt+PgDn - puts you in Script Output panel.
Ctrl+Shift+D - clears panel.
Alt+PgUp - puts you back in editor panel.
For those of us trying to figure out how to hash our own classes whilst still using the standard template, there is a simple solution:
In your class you need to define an equality operator overload ==
. If you don't know how to do this, GeeksforGeeks has a great tutorial https://www.geeksforgeeks.org/operator-overloading-c/
Under the standard namespace, declare a template struct called hash with your classname as the type (see below). I found a great blogpost that also shows an example of calculating hashes using XOR and bitshifting, but that's outside the scope of this question, but it also includes detailed instructions on how to accomplish using hash functions as well https://prateekvjoshi.com/2014/06/05/using-hash-function-in-c-for-user-defined-classes/
namespace std {
template<>
struct hash<my_type> {
size_t operator()(const my_type& k) {
// Do your hash function here
...
}
};
}
std::map
or std::unordered_map
just like you would normally do and use my_type
as the key, the standard library will automatically use the hash function you defined before (in step 2) to hash your keys.#include <unordered_map>
int main() {
std::unordered_map<my_type, other_type> my_map;
}
I realize that this is an old question, but I'll post the solution for my use case, in case others run into the same situation I did when implementing James Hill's answer (above).
I found this question while trying to solve the same issue. James' answer got me 90% there. However, for my use case, selecting the item from the dropdown also triggered an action on the page from dropdown's onchange
event. James' code as written did not trigger this event (at least in Firefox, which I was testing in). As a result, I made the following minor change:
function setSelectedValue(object, value) {
for (var i = 0; i < object.options.length; i++) {
if (object.options[i].text === value) {
object.options[i].selected = true;
object.onchange();
return;
}
}
// Throw exception if option `value` not found.
var tag = object.nodeName;
var str = "Option '" + value + "' not found";
if (object.id != '') {
str = str + " in //" + object.nodeName.toLowerCase()
+ "[@id='" + object.id + "']."
}
else if (object.name != '') {
str = str + " in //" + object.nodeName.toLowerCase()
+ "[@name='" + object.name + "']."
}
else {
str += "."
}
throw str;
}
Note the object.onchange()
call, which I added to the original solution. This calls the handler to make certain that the action on the page occurs.
Added code to throw an exception if option value
is not found; this is needed for my use case.
you need to cast int to str before concatenating. for that use str(temperature)
. Or you can print the same output using ,
if you don't want to convert like this.
print("the furnace is now",temperature , "degrees!")
\r
= CR (Carriage Return) → Used as a new line character in Mac OS before X\n
= LF (Line Feed) → Used as a new line character in Unix/Mac OS X\r\n
= CR + LF → Used as a new line character in WindowsTo make it short, it means that you lacked some "dependencies" for the libraries you wanted to use. Before trying to use any kind of library, first it is suggested to look up whether it needs another library in python "family". What do I mean?
Downloading "dlls" is something that I avoid. I had the same problem with another library "kivy". The problem occurred when I wanted to use Python 3.4v instead of 3.5 Everything was working correctly in 3.5 but I just wanted to use the stable version for kivy which is 3.4 as they officially "advise". So, I switched to 3.4 but then I had the very same "dll" error saying lots of things are missing. So I checked the website and learned that I needed to install extra "dependencies" from the official website of kivy, then the problem got solved.
From ScottGu's blog:
Starting with the ASP.NET MVC 3 Beta release, you can now add a file called _ViewStart.cshtml (or _ViewStart.vbhtml for VB) underneath the \Views folder of your project:
The _ViewStart file can be used to define common view code that you want to execute at the start of each View’s rendering. For example, we could write code within our _ViewStart.cshtml file to programmatically set the Layout property for each View to be the SiteLayout.cshtml file by default:
Because this code executes at the start of each View, we no longer need to explicitly set the Layout in any of our individual view files (except if we wanted to override the default value above).
Important: Because the _ViewStart.cshtml allows us to write code, we can optionally make our Layout selection logic richer than just a basic property set. For example: we could vary the Layout template that we use depending on what type of device is accessing the site – and have a phone or tablet optimized layout for those devices, and a desktop optimized layout for PCs/Laptops. Or if we were building a CMS system or common shared app that is used across multiple customers we could select different layouts to use depending on the customer (or their role) when accessing the site.
This enables a lot of UI flexibility. It also allows you to more easily write view logic once, and avoid repeating it in multiple places.
Also see this.
In a more general sense this ability of MVC framework to "know" about _Viewstart.cshtml is called "Coding by convention".
Convention over configuration (also known as coding by convention) is a software design paradigm which seeks to decrease the number of decisions that developers need to make, gaining simplicity, but not necessarily losing flexibility. The phrase essentially means a developer only needs to specify unconventional aspects of the application. For example, if there's a class Sale in the model, the corresponding table in the database is called “sales” by default. It is only if one deviates from this convention, such as calling the table “products_sold”, that one needs to write code regarding these names.
Wikipedia
There's no magic to it. Its just been written into the core codebase of the MVC framework and is therefore something that MVC "knows" about. That why you don't find it in the .config files or elsewhere; it's actually in the MVC code. You can however override to alter or null out these conventions.
For everyone here seeking a crazy solution, just simply try
title="your-tooltip-here"
in any tag. I've tested into td
's and a
's and it pretty works.
To add to the accepted answer, I had a similar issue and solved it using a similar approach with the contrived example below. In this case I needed to log some parameters on componentWillUnmount
and as described in the original question I didn't want it to log every time the params changed.
const componentWillUnmount = useRef(false)
// This is componentWillUnmount
useEffect(() => {
return () => {
componentWillUnmount.current = true
}
}, [])
useEffect(() => {
return () => {
// This line only evaluates to true after the componentWillUnmount happens
if (componentWillUnmount.current) {
console.log(params)
}
}
}, [params]) // This dependency guarantees that when the componentWillUnmount fires it will log the latest params
This is similar to Emilie's answer however since you asked specifically how to convert the NSRange
to Range<String.Index>
you would do something like this:
func textField(textField: UITextField, shouldChangeCharactersInRange range: NSRange, replacementString string: String) -> Bool {
let start = advance(textField.text.startIndex, range.location)
let end = advance(start, range.length)
let swiftRange = Range<String.Index>(start: start, end: end)
...
}
If you always search based on value3
, you could store the objects in a Map:
Map<String, List<Sample>> map = new HashMap <>();
You can then populate the map with key = value3
and value = list of Sample objects with that same value3
property.
You can then query the map:
List<Sample> allSamplesWhereValue3IsDog = map.get("Dog");
Note: if no 2 Sample
instances can have the same value3
, you can simply use a Map<String, Sample>
.
I hope this saves someone some hours of pain.
It should be on Project -> app
folder
Please find the screenshot from Firebase website
You'd probably use the subprocess module. Something like this:
import subprocess
p = subprocess.Popen(["scp", myfile, destination])
sts = os.waitpid(p.pid, 0)
Where destination
is probably of the form user@remotehost:remotepath
. Thanks to
@Charles Duffy for pointing out the weakness in my original answer, which used a single string argument to specify the scp operation shell=True
- that wouldn't handle whitespace in paths.
The module documentation has examples of error checking that you may want to perform in conjunction with this operation.
Ensure that you've set up proper credentials so that you can perform an unattended, passwordless scp between the machines. There is a stackoverflow question for this already.
They are both correct. Personally I prefer your approach better for its verbosity but it's really down to personal preference.
Off hand, running if($_POST) would not throw an error - the $_POST array exists regardless if the request was sent with POST headers. An empty array is cast to false in a boolean check.
Here is the new dependency (August 2017)
<!-- https://mvnrepository.com/artifact/org.glassfish.jersey.core/jersey-common -->
<dependency>
<groupId>org.glassfish.jersey.core</groupId>
<artifactId>jersey-common</artifactId>
<version>2.0-m03</version>
</dependency>
If you are running Ansible >= 2.0 there is also the dirname filter you can use to extract the directory part of a path. That way you can just use one variable to hold the entire path to make sure both tasks never get out of sync.
So for example if you have playbook with dest_path
defined in a variable like this you can reuse the same variable:
- name: My playbook
vars:
dest_path: /home/ubuntu/some_dir/some_file.txt
tasks:
- name: Make sure destination dir exists
file:
path: "{{ dest_path | dirname }}"
state: directory
recurse: yes
# now this task is always save to run no matter how dest_path get's changed arround
- name: Add file or template to remote instance
template:
src: foo.txt.j2
dest: "{{ dest_path }}"
The <hr>
should be placed inside a <div>
for proper functioning.
Place it like this to get desired width `
<div class='row'>
<div class='col-lg-8 col-lg-offset-2'>
<hr>
</div>
</div>
`
Hope this helps a future reader!
If your class Question contains only primitives, Serializeble or String fields you can implement him Serializable. ArrayList is implement Serializable, that's why you can put it like Bundle.putSerializable(key, value) and send it to another Activity. IMHO, Parcelable - it's very long way.
If you want to select an individual hidden field, you can select it through the different selectors of jQuery :
<input type="hidden" id="hiddenField" name="hiddenField" class="hiddenField"/>
$("#hiddenField").val(); //by id
$("[name='hiddenField']").val(); // by name
$(".hiddenField").val(); // by class
Okay. I will agree that every answer written above will somehow help the cause. I am one of those who is on the same boat. With nothing working my way, and Android Studio refusing to build on the Offline mode due to the associated dependencies, I did something that eased my problem within minutes.
Every time I build the gradle, I turn off my internet. ( Notice that the Offline mode is not checked). I don't know how and why but this works.
The documentation could help you : http://java.sun.com/j2se/1.5.0/docs/api/javax/xml/parsers/DocumentBuilder.html
The method DocumentBuilder.parse(String)
takes a URI and tries to open it. If you want to directly give the content, you have to give it an InputStream
or Reader
, for example a StringReader
. ... Welcome to the Java standard levels of indirections !
Basically :
DocumentBuilder db = ...;
String xml = ...;
db.parse(new InputSource(new StringReader(xml)));
Note that if you read your XML from a file, you can directly give the File
object to DocumentBuilder.parse()
.
As a side note, this is a pattern you will encounter a lot in Java. Usually, most API work with Streams more than with Strings. Using Streams means that potentially not all the content has to be loaded in memory at the same time, which can be a great idea !
In Chrome version 49
you need always this code
$("select option:first").prop('selected', true)
The best way is to check the type, because undefined
/null
/false
are a tricky thing in JS.
So:
if(typeof obj !== "undefined") {
// obj is a valid variable, do something here.
}
Note that typeof
always returns a string, and doesn't generate an error if the variable doesn't exist at all.
In Python, lambda is a keyword used to define anonymous functions(functions with no name) and that's why they are known as lambda functions.
Basically it is used for defining anonymous functions that can/can't take argument(s) and returns value of data/expression. Let's see an example.
>>> # Defining a lambda function that takes 2 parameters(as integer) and returns their sum
...
>>> lambda num1, num2: num1 + num2
<function <lambda> at 0x1004b5de8>
>>>
>>> # Let's store the returned value in variable & call it(1st way to call)
...
>>> addition = lambda num1, num2: num1 + num2
>>> addition(62, 5)
67
>>> addition(1700, 29)
1729
>>>
>>> # Let's call it in other way(2nd way to call, one line call )
...
>>> (lambda num1, num2: num1 + num2)(120, 1)
121
>>> (lambda num1, num2: num1 + num2)(-68, 2)
-66
>>> (lambda num1, num2: num1 + num2)(-68, 2**3)
-60
>>>
Now let me give an answer of your 2nd question. The 1st answer is also great. This is my own way to explain with another example.
Suppose we have a list of items(integers and strings with numeric contents) as follows,
nums = ["2", 1, 3, 4, "5", "8", "-1", "-10"]
and I want to sort it using sorted() function, lets see what happens.
>>> nums = ["2", 1, 3, 4, "5", "8", "-1", "-10"]
>>> sorted(nums)
[1, 3, 4, '-1', '-10', '2', '5', '8']
>>>
It didn't give me what I expected as I wanted like below,
['-10', '-1', 1, '2', 3, 4, '5', '8']
It means we need some strategy(so that sorted could treat our string items as an ints) to achieve this. This is why the key keyword argument is used. Please look at the below one.
>>> nums = ["2", 1, 3, 4, "5", "8", "-1", "-10"]
>>> sorted(nums, key=int)
['-10', '-1', 1, '2', 3, 4, '5', '8']
>>>
Lets use lambda function as a value of key
>>> names = ["Rishikesh", "aman", "Ajay", "Hemkesh", "sandeep", "Darshan", "Virendra", "Shwetabh"]
>>> names2 = sorted(names)
>>> names2
['Ajay', 'Darshan', 'Hemkesh', 'Rishikesh', 'Shwetabh', 'Virendra', 'aman', 'sandeep']
>>> # But I don't want this o/p(here our intention is to treat 'a' same as 'A')
...
>>> names3 = sorted(names, key=lambda name:name.lower())
>>> names3
['Ajay', 'aman', 'Darshan', 'Hemkesh', 'Rishikesh', 'sandeep', 'Shwetabh', 'Virendra']
>>>
You can define your own function(callable) and provide it as value of key.
Dear programers, I have written the below code for you, just try to understand it and comment your explanation. I would be glad to see your explanation(it's simple).
>>> def validator(item):
... try:
... return int(item)
... except:
... return 0
...
>>> sorted(['gurmit', "0", 5, 2, 1, "front", -2, "great"], key=validator)
[-2, 'gurmit', '0', 'front', 'great', 1, 2, 5]
>>>
I hope it would be useful.
Do you really need an object? What about:
$myArray[] = array("name" => "my name");
Just use a two-dimensional array.
Output (var_dump):
array(1) {
[0]=>
array(1) {
["name"]=>
string(7) "my name"
}
}
You could access your last entry like this:
echo $myArray[count($myArray) - 1]["name"];
You can reference those remote tracking branches ~(listed with git branch -r
) with the name of their remote.
You need to fetch the remote branch:
git fetch origin aRemoteBranch
If you want to merge one of those remote branches on your local branch:
git checkout master
git merge origin/aRemoteBranch
Note 1: For a large repo with a long history, you will want to add the --depth=1
option when you use git fetch
.
Note 2: These commands also work with other remote repos so you can setup an origin
and an upstream
if you are working on a fork.
Note 3: user3265569 suggests the following alias in the comments:
From
aLocalBranch
, rungit combine remoteBranch
Alias:combine = !git fetch origin ${1} && git merge origin/${1}
Opposite scenario: If you want to merge one of your local branch on a remote branch (as opposed to a remote branch to a local one, as shown above), you need to create a new local branch on top of said remote branch first:
git checkout -b myBranch origin/aBranch
git merge anotherLocalBranch
The idea here, is to merge "one of your local branch" (here anotherLocalBranch
) to a remote branch (origin/aBranch
).
For that, you create first "myBranch
" as representing that remote branch: that is the git checkout -b myBranch origin/aBranch
part.
And then you can merge anotherLocalBranch
to it (to myBranch
).
Here I am posting you the some code example which record good quality of sound using AudioRecord API.
Note: If you use in emulator the sound quality will not much good because we are using sample rate 8k which only supports in emulator. In device use sample rate to 44.1k for better quality.
public class Audio_Record extends Activity {
private static final int RECORDER_SAMPLERATE = 8000;
private static final int RECORDER_CHANNELS = AudioFormat.CHANNEL_IN_MONO;
private static final int RECORDER_AUDIO_ENCODING = AudioFormat.ENCODING_PCM_16BIT;
private AudioRecord recorder = null;
private Thread recordingThread = null;
private boolean isRecording = false;
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.main);
setButtonHandlers();
enableButtons(false);
int bufferSize = AudioRecord.getMinBufferSize(RECORDER_SAMPLERATE,
RECORDER_CHANNELS, RECORDER_AUDIO_ENCODING);
}
private void setButtonHandlers() {
((Button) findViewById(R.id.btnStart)).setOnClickListener(btnClick);
((Button) findViewById(R.id.btnStop)).setOnClickListener(btnClick);
}
private void enableButton(int id, boolean isEnable) {
((Button) findViewById(id)).setEnabled(isEnable);
}
private void enableButtons(boolean isRecording) {
enableButton(R.id.btnStart, !isRecording);
enableButton(R.id.btnStop, isRecording);
}
int BufferElements2Rec = 1024; // want to play 2048 (2K) since 2 bytes we use only 1024
int BytesPerElement = 2; // 2 bytes in 16bit format
private void startRecording() {
recorder = new AudioRecord(MediaRecorder.AudioSource.MIC,
RECORDER_SAMPLERATE, RECORDER_CHANNELS,
RECORDER_AUDIO_ENCODING, BufferElements2Rec * BytesPerElement);
recorder.startRecording();
isRecording = true;
recordingThread = new Thread(new Runnable() {
public void run() {
writeAudioDataToFile();
}
}, "AudioRecorder Thread");
recordingThread.start();
}
//convert short to byte
private byte[] short2byte(short[] sData) {
int shortArrsize = sData.length;
byte[] bytes = new byte[shortArrsize * 2];
for (int i = 0; i < shortArrsize; i++) {
bytes[i * 2] = (byte) (sData[i] & 0x00FF);
bytes[(i * 2) + 1] = (byte) (sData[i] >> 8);
sData[i] = 0;
}
return bytes;
}
private void writeAudioDataToFile() {
// Write the output audio in byte
String filePath = "/sdcard/voice8K16bitmono.pcm";
short sData[] = new short[BufferElements2Rec];
FileOutputStream os = null;
try {
os = new FileOutputStream(filePath);
} catch (FileNotFoundException e) {
e.printStackTrace();
}
while (isRecording) {
// gets the voice output from microphone to byte format
recorder.read(sData, 0, BufferElements2Rec);
System.out.println("Short writing to file" + sData.toString());
try {
// // writes the data to file from buffer
// // stores the voice buffer
byte bData[] = short2byte(sData);
os.write(bData, 0, BufferElements2Rec * BytesPerElement);
} catch (IOException e) {
e.printStackTrace();
}
}
try {
os.close();
} catch (IOException e) {
e.printStackTrace();
}
}
private void stopRecording() {
// stops the recording activity
if (null != recorder) {
isRecording = false;
recorder.stop();
recorder.release();
recorder = null;
recordingThread = null;
}
}
private View.OnClickListener btnClick = new View.OnClickListener() {
public void onClick(View v) {
switch (v.getId()) {
case R.id.btnStart: {
enableButtons(true);
startRecording();
break;
}
case R.id.btnStop: {
enableButtons(false);
stopRecording();
break;
}
}
}
};
@Override
public boolean onKeyDown(int keyCode, KeyEvent event) {
if (keyCode == KeyEvent.KEYCODE_BACK) {
finish();
}
return super.onKeyDown(keyCode, event);
}
}
For more detail try this AUDIORECORD BLOG.
Happy Coding !!
Both pandas
and matplotlib.dates
use matplotlib.units
for locating the ticks.
But while matplotlib.dates
has convenient ways to set the ticks manually, pandas seems to have the focus on auto formatting so far (you can have a look at the code for date conversion and formatting in pandas).
So for the moment it seems more reasonable to use matplotlib.dates
(as mentioned by @BrenBarn in his comment).
import numpy as np
import pandas as pd
import matplotlib.pyplot as plt
import matplotlib.dates as dates
idx = pd.date_range('2011-05-01', '2011-07-01')
s = pd.Series(np.random.randn(len(idx)), index=idx)
fig, ax = plt.subplots()
ax.plot_date(idx.to_pydatetime(), s, 'v-')
ax.xaxis.set_minor_locator(dates.WeekdayLocator(byweekday=(1),
interval=1))
ax.xaxis.set_minor_formatter(dates.DateFormatter('%d\n%a'))
ax.xaxis.grid(True, which="minor")
ax.yaxis.grid()
ax.xaxis.set_major_locator(dates.MonthLocator())
ax.xaxis.set_major_formatter(dates.DateFormatter('\n\n\n%b\n%Y'))
plt.tight_layout()
plt.show()
(my locale is German, so that Tuesday [Tue] becomes Dienstag [Di])
See this answer: Source
If timezone is not specified in postgresql.conf or as a server command-line option, the server attempts to use the value of the TZ environment variable as the default time zone. If TZ is not defined or is not any of the time zone names known to PostgreSQL, the server attempts to determine the operating system's default time zone by checking the behavior of the C library function localtime(). The default time zone is selected as the closest match among PostgreSQL's known time zones. (These rules are also used to choose the default value of log_timezone, if not specified.) source
This means that if you do not define a timezone, the server attempts to determine the operating system's default time zone by checking the behavior of the C library function localtime().
If timezone is not specified in postgresql.conf or as a server command-line option, the server attempts to use the value of the TZ environment variable as the default time zone.
It seems to have the System's timezone to be set is possible indeed.
Get the OS local time zone from the shell. In psql:
=> \! date +%Z
Well try ini_set('memory_limit', '256M');
134217728 bytes = 128 MB
Or rewrite the code to consume less memory.
You can do it in a different way. See the below examples:
1. First Method
#outer {
text-align: center;
width: 100%;
}
#inner {
display: inline-block;
}
2. Second method
#outer {
position: relative;
overflow: hidden;
}
.centered {
position: absolute;
left: 50%;
}
In Android Studio 3.5.3, the Device File Explorer can be found in View -> Tool Windows.
It can also be opened using the vertical tabs on the right-hand side of the main window.
Use sleep like so:
sleep 2
That'll sleep for 2 seconds.
Be careful to give an argument. If you just run sleep
, the process will sleep forever. (This is useful when you want a thread to sleep until it's woken.)
With latest ARC for GET request with authentication need to add a raw header named Authorization:authtoken.
Please find the screen shot Get request with authentication and query params
To add Query param click on drop down arrow on left side of URL box.
Firebase.remove()
like probably most Firebase methods is asynchronous, thus you have to listen to events to know when something happened:
parent = ref.parent()
parent.on('child_removed', function (snapshot) {
// removed!
})
ref.remove()
According to Firebase docs it should work even if you lose network connection. If you want to know when the change has been actually synchronized with Firebase servers, you can pass a callback function to Firebase.remove
method:
ref.remove(function (error) {
if (!error) {
// removed!
}
}
var employee = (from res in _db.EMPLOYEEs
where (res.EMAIL == givenInfo || res.USER_NAME == givenInfo)
select new {res.EMAIL, res.USERNAME} );
OR you can use
var employee = (from res in _db.EMPLOYEEs
where (res.EMAIL == givenInfo || res.USER_NAME == givenInfo)
select new {email=res.EMAIL, username=res.USERNAME} );
Explanation :
Select employee from the db as res.
Filter the employee details as per the where condition.
Select required fields from the employee object by creating an Anonymous object using new { }
Greenlock handles certificate issuance and renewal (via Let's Encrypt) and http => https redirection, out-of-the box.
express-app.js
:
var express = require('express');
var app = express();
app.use('/', function (req, res) {
res.send({ msg: "Hello, Encrypted World!" })
});
// DO NOT DO app.listen()
// Instead export your app:
module.exports = app;
server.js
:
require('greenlock-express').create({
// Let's Encrypt v2 is ACME draft 11
version: 'draft-11'
, server: 'https://acme-v02.api.letsencrypt.org/directory'
// You MUST change these to valid email and domains
, email: '[email protected]'
, approveDomains: [ 'example.com', 'www.example.com' ]
, agreeTos: true
, configDir: "/path/to/project/acme/"
, app: require('./express-app.j')
, communityMember: true // Get notified of important updates
, telemetry: true // Contribute telemetry data to the project
}).listen(80, 443);
Watch the QuickStart demonstration: https://youtu.be/e8vaR4CEZ5s
Just answering this ahead-of-time because it's a common follow-up question:
You can't have SSL certificates on localhost. However, you can use something like Telebit which will allow you to run local apps as real ones.
You can also use private domains with Greenlock via DNS-01 challenges, which is mentioned in the README along with various plugins which support it.
Read the note above about localhost - you can't use non-standard ports with Let's Encrypt either.
However, you can expose your internal non-standard ports as external standard ports via port-forward, sni-route, or use something like Telebit that does SNI-routing and port-forwarding / relaying for you.
You can also use DNS-01 challenges in which case you won't need to expose ports at all and you can also secure domains on private networks this way.
Swift 4 - 5.1 Protocol Extensions
public protocol NibInstantiatable {
static func nibName() -> String
}
extension NibInstantiatable {
static func nibName() -> String {
return String(describing: self)
}
}
extension NibInstantiatable where Self: UIView {
static func fromNib() -> Self {
let bundle = Bundle(for: self)
let nib = bundle.loadNibNamed(nibName(), owner: self, options: nil)
return nib!.first as! Self
}
}
Adoption
class MyView: UIView, NibInstantiatable {
}
This implementation assumes that the Nib has the same name as the UIView class. Ex. MyView.xib. You can modify this behavior by implementing nibName() in MyView to return a different name than the default protocol extension implementation.
In the xib the files owner is MyView and the root view class is MyView.
Usage
let view = MyView.fromNib()
SELECT *
FROM courses
WHERE DATE_ADD(NOW(), INTERVAL 2 HOUR) > start_time
See Date and Time Functions for other date/time manipulation.
Check out this article. I believe it should help you get what you are wanting. If your table already exists, and it has data in it already, the error you are getting may be due to the auto_increment trying to assign a value that already exists for other records.
In short, as others have already mentioned in comments, sequences, as they are thought of and handled in Oracle, do not exist in MySQL. However, you can likely use auto_increment to accomplish what you want.
Without additional details on the specific error, it is difficult to provide more specific help.
UPDATE
CREATE TABLE ORD (
ORDID INT NOT NULL AUTO_INCREMENT,
//Rest of table code
PRIMARY KEY (ordid)
)
AUTO_INCREMENT = 622;
This link is also helpful for describing usage of auto_increment. Setting the AUTO_INCREMENT value appears to be a table option, and not something that is specified as a column attribute specifically.
Also, per one of the links from above, you can alternatively set the auto increment start value via an alter to your table.
ALTER TABLE ORD AUTO_INCREMENT = 622;
UPDATE 2
Here is a link to a working sqlfiddle example, using auto increment.
I hope this info helps.
I had the same problem with JDK6,I changed the JDK to JDK8,the problem solved. Try to use JDK8!!!
Yes. See this article. Here's an example from there:
Console.BackgroundColor = ConsoleColor.Blue;
Console.ForegroundColor = ConsoleColor.White;
Console.WriteLine("White on blue.");
You can use the following script. It worked for me
The modal itself consists of a main modal container, a header, a body, and a footer. The footer contains the actions, which in this case is the OK button, the header holds the title and the close button, and the body contains the modal content.
$(function () {
modalPosition();
$(window).resize(function () {
modalPosition();
});
$('.openModal').click(function (e) {
$('.modal, .modal-backdrop').fadeIn('fast');
e.preventDefault();
});
$('.close-modal').click(function (e) {
$('.modal, .modal-backdrop').fadeOut('fast');
});
});
function modalPosition() {
var width = $('.modal').width();
var pageWidth = $(window).width();
var x = (pageWidth / 2) - (width / 2);
$('.modal').css({ left: x + "px" });
}
I've noticed that some Java libraries have started using META-INF as a directory in which to include configuration files that should be packaged and included in the CLASSPATH along with JARs. For example, Spring allows you to import XML Files that are on the classpath using:
<import resource="classpath:/META-INF/cxf/cxf.xml" />
<import resource="classpath:/META-INF/cxf/cxf-extensions-*.xml" />
In this example, I'm quoting straight out of the Apache CXF User Guide. On a project I worked on in which we had to allow multiple levels of configuration via Spring, we followed this convention and put our configuration files in META-INF.
When I reflect on this decision, I don't know what exactly would be wrong with simply including the configuration files in a specific Java package, rather than in META-INF. But it seems to be an emerging de facto standard; either that, or an emerging anti-pattern :-)
If keyCode
is not caught, catch which
:
$('#formid').on('keyup keypress', function(e) {
var keyCode = e.keyCode || e.which;
if (keyCode === 13) {
e.preventDefault();
return false;
}
});
EDIT: missed it, it's better to use keyup
instead of keypress
EDIT 2: As in some newer versions of Firefox the form submission is not prevented, it's safer to add the keypress event to the form as well. Also it doesn't work (anymore?) by just binding the event to the form "name" but only to the form id. Therefore I made this more obvious by changing the code example appropriately.
EDIT 3: Changed bind()
to on()
Why not...
bool isEmpty = !list.Any();
if(isEmpty)
{
// error message
}
else
{
// show grid
}
The GridView
has also an EmptyDataTemplate
which is shown if the datasource is empty. This is an approach in ASP.NET:
<emptydatarowstyle backcolor="LightBlue" forecolor="Red"/>
<emptydatatemplate>
<asp:image id="NoDataErrorImg"
imageurl="~/images/NoDataError.jpg" runat="server"/>
No Data Found!
</emptydatatemplate>
You can execute it just as you select a table using SELECT
clause. In addition you can provide parameters within parentheses.
Try with below syntax:
SELECT * FROM yourFunctionName(parameter1, parameter2)
Things to check:
Check of which architecture (32 bit or 64 bit) your python is? (you can do it so by opening python idle and typing)
import platform
platform.architecture()
Now download the file of that bit irrespective of your system architecture.
Check whether you're using the correct filename (i.e it should not be appended with (1) which might happen if you download the file twice)
Check if your pip is updated or not. If not you can use
python -m pip install -upgrade pip
Completely untested, but this should work:
View positiveButton = findViewById(R.id.positiveButton);
RelativeLayout.LayoutParams layoutParams =
(RelativeLayout.LayoutParams)positiveButton.getLayoutParams();
layoutParams.addRule(RelativeLayout.CENTER_IN_PARENT, RelativeLayout.TRUE);
positiveButton.setLayoutParams(layoutParams);
add android:configChanges="orientation|screenSize"
inside your activity in your manifest
If you successfully rebased against remote branch and can not git rebase --abort
you still can do some tricks to save your work and don't have forced pushes.
Suppose your current branch that was rebased by mistake is called your-branch
and is tracking origin/your-branch
git branch -m your-branch-rebased
# rename current branchgit checkout origin/your-branch
# checkout to latest state that is known to origingit checkout -b your-branch
git log your-branch-rebased
, compare to git log your-branch
and define commits that are missing from your-branch
git cherry-pick COMMIT_HASH
for every commit in your-branch-rebased
remote/your-branch
and you should push only your-branch
That functionality is still suspiciously missing from the Java reflection API as far as I know. You can get a package object by just doing this:
Package packageObj = Package.getPackage("my.package");
But as you probably noticed, that won't let you list the classes in that package. As of right now, you have to take sort of a more filesystem-oriented approach.
I found some sample implementations in this post
I'm not 100% sure these methods will work when your classes are buried in JAR files, but I hope one of those does it for you.
I agree with @skaffman...if you have another way of going about this, I'd recommend doing that instead.
An adaptation of the above answer...
$('input[type=radio][name=bedStatus]').on('change', function() {_x000D_
switch ($(this).val()) {_x000D_
case 'allot':_x000D_
alert("Allot Thai Gayo Bhai");_x000D_
break;_x000D_
case 'transfer':_x000D_
alert("Transfer Thai Gayo");_x000D_
break;_x000D_
}_x000D_
});
_x000D_
<script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/3.3.1/jquery.min.js"></script>_x000D_
<input type="radio" name="bedStatus" id="allot" checked="checked" value="allot">Allot_x000D_
<input type="radio" name="bedStatus" id="transfer" value="transfer">Transfer
_x000D_
For Python >= 3.4:
from pathlib import Path
filename = '/home/user/somefile.txt'
p = Path(filename)
new_filename = p.parent.joinpath(p.stem + '.jpg') # PosixPath('/home/user/somefile.jpg')
new_filename_str = str(new_filename) # '/home/user/somefile.jpg'
Here's an example using hooks (requires React >= 16.8.0)
// import React, { useState } from 'react';_x000D_
const { useState } = React;_x000D_
_x000D_
function App() {_x000D_
const [checked, setChecked] = useState(false);_x000D_
const toggleChecked = () => setChecked(value => !value);_x000D_
return (_x000D_
<input_x000D_
type="checkbox"_x000D_
checked={checked}_x000D_
onChange={toggleChecked}_x000D_
/>_x000D_
);_x000D_
}_x000D_
_x000D_
const rootElement = document.getElementById("root");_x000D_
ReactDOM.render(<App />, rootElement);
_x000D_
<script crossorigin src="https://unpkg.com/react@16/umd/react.development.js"></script>_x000D_
<script crossorigin src="https://unpkg.com/react-dom@16/umd/react-dom.development.js"></script>_x000D_
_x000D_
<div id="root"><div>
_x000D_
I was scratching my head about this for a while too, and since Dave's explanation is a little hard to understand I'll post my (apparently working) code:
private class TabListener<T extends Fragment> implements ActionBar.TabListener {
private Fragment mFragment;
private Activity mActivity;
private final String mTag;
private final Class<T> mClass;
public TabListener(Activity activity, String tag, Class<T> clz) {
mActivity = activity;
mTag = tag;
mClass = clz;
mFragment=mActivity.getFragmentManager().findFragmentByTag(mTag);
}
public void onTabSelected(Tab tab, FragmentTransaction ft) {
if (mFragment == null) {
mFragment = Fragment.instantiate(mActivity, mClass.getName());
ft.replace(android.R.id.content, mFragment, mTag);
} else {
if (mFragment.isDetached()) {
ft.attach(mFragment);
}
}
}
public void onTabUnselected(Tab tab, FragmentTransaction ft) {
if (mFragment != null) {
ft.detach(mFragment);
}
}
public void onTabReselected(Tab tab, FragmentTransaction ft) {
}
}
As you can see it's pretty much like the Android sample, apart from not detaching in the constructor, and using replace instead of add.
After much headscratching and trial-and-error I found that finding the fragment in the constructor seems to make the double onCreateView problem magically go away (I assume it just ends up being null for onTabSelected when called through the ActionBar.setSelectedNavigationItem() path when saving/restoring state).
For a String constant you have no choice other than escaping via backslash.
Maybe you find the MyBatis project interesting. It is a thin layer over JDBC where you can externalize your SQL queries in XML configuration files without the need to escape double quotes.
System.IO.Path.GetDirectoryName(filename)
In the context of JWTs, Stormpath have written a fairly helpful article outlining possible ways to store them, and the (dis-)advantages pertaining to each method.
It also has a short overview of XSS and CSRF attacks, and how you can combat them.
I've attached some short snippets of the article below, in case their article is taken offline/their site goes down.
Problems:
Web Storage (localStorage/sessionStorage) is accessible through JavaScript on the same domain. This means that any JavaScript running on your site will have access to web storage, and because of this can be vulnerable to cross-site scripting (XSS) attacks. XSS in a nutshell is a type of vulnerability where an attacker can inject JavaScript that will run on your page. Basic XSS attacks attempt to inject JavaScript through form inputs, where the attacker puts alert('You are Hacked'); into a form to see if it is run by the browser and can be viewed by other users.
Prevention:
To prevent XSS, the common response is to escape and encode all untrusted data. But this is far from the full story. In 2015, modern web apps use JavaScript hosted on CDNs or outside infrastructure. Modern web apps include 3rd party JavaScript libraries for A/B testing, funnel/market analysis, and ads. We use package managers like Bower to import other peoples’ code into our apps.
What if only one of the scripts you use is compromised? Malicious JavaScript can be embedded on the page, and Web Storage is compromised. These types of XSS attacks can get everyone’s Web Storage that visits your site, without their knowledge. This is probably why a bunch of organizations advise not to store anything of value or trust any information in web storage. This includes session identifiers and tokens.
As a storage mechanism, Web Storage does not enforce any secure standards during transfer. Whoever reads Web Storage and uses it must do their due diligence to ensure they always send the JWT over HTTPS and never HTTP.
Problems:
Cookies, when used with the HttpOnly cookie flag, are not accessible through JavaScript, and are immune to XSS. You can also set the Secure cookie flag to guarantee the cookie is only sent over HTTPS. This is one of the main reasons that cookies have been leveraged in the past to store tokens or session data. Modern developers are hesitant to use cookies because they traditionally required state to be stored on the server, thus breaking RESTful best practices. Cookies as a storage mechanism do not require state to be stored on the server if you are storing a JWT in the cookie. This is because the JWT encapsulates everything the server needs to serve the request.
However, cookies are vulnerable to a different type of attack: cross-site request forgery (CSRF). A CSRF attack is a type of attack that occurs when a malicious web site, email, or blog causes a user’s web browser to perform an unwanted action on a trusted site on which the user is currently authenticated. This is an exploit of how the browser handles cookies. A cookie can only be sent to the domains in which it is allowed. By default, this is the domain that originally set the cookie. The cookie will be sent for a request regardless of whether you are on galaxies.com or hahagonnahackyou.com.
Prevention:
Modern browsers support the
SameSite
flag, in addition toHttpOnly
andSecure
. The purpose of this flag is to prevent the cookie from being transmitted in cross-site requests, preventing many kinds of CSRF attack.For browsers that do not support
SameSite
, CSRF can be prevented by using synchronized token patterns. This sounds complicated, but all modern web frameworks have support for this.For example, AngularJS has a solution to validate that the cookie is accessible by only your domain. Straight from AngularJS docs:
When performing XHR requests, the $http service reads a token from a cookie (by default, XSRF-TOKEN) and sets it as an HTTP header (X-XSRF-TOKEN). Since only JavaScript that runs on your domain can read the cookie, your server can be assured that the XHR came from JavaScript running on your domain. You can make this CSRF protection stateless by including a
xsrfToken
JWT claim:{ "iss": "http://galaxies.com", "exp": 1300819380, "scopes": ["explorer", "solar-harvester", "seller"], "sub": "[email protected]", "xsrfToken": "d9b9714c-7ac0-42e0-8696-2dae95dbc33e" }
Leveraging your web app framework’s CSRF protection makes cookies rock solid for storing a JWT. CSRF can also be partially prevented by checking the HTTP Referer and Origin header from your API. CSRF attacks will have Referer and Origin headers that are unrelated to your application.
The full article can be found here: https://stormpath.com/blog/where-to-store-your-jwts-cookies-vs-html5-web-storage/
They also have a helpful article on how to best design and implement JWTs, with regards to the structure of the token itself: https://stormpath.com/blog/jwt-the-right-way/
int days = 1;
var newDate = new Date(Date.now() + days*24*60*60*1000);
var days = 2;_x000D_
var newDate = new Date(Date.now()+days*24*60*60*1000);_x000D_
_x000D_
document.write('Today: <em>');_x000D_
document.write(new Date());_x000D_
document.write('</em><br/> New: <strong>');_x000D_
document.write(newDate);
_x000D_
Just make a custom userform that is shown when the "delete" button is pressed, then link the continue button to the actual code that does the deleting. Make the cancel button hide the userform.
In my IE11, works normally. Version: 11.306.10586.0
We can test if ActiveX works at IE, in this site: http://www.pcpitstop.com/testax.asp
To test the error handling, you can do something like this:
feature ErrorHandling do
before do
Rails.application.config.consider_all_requests_local = false
Rails.application.config.action_dispatch.show_exceptions = true
end
scenario 'renders not_found template' do
visit '/blah'
expect(page).to have_content "The page you were looking for doesn't exist."
end
end
I know the answer is already accepted here, but I just wanted to share what I found when I tried to escape double quotes and single quotes.
Here's what I have done: and this works :)
to escape double quotes:
if(string.contains("\"")) {
string = string.replaceAll("\"", "\\\\\"");
}
and to escape single quotes:
if(string.contains("\'")) {
string = string.replaceAll("\'", "\\\\'");
}
PS: Please note the number of backslashes used above.
To align one flex child to the right set it withmargin-left: auto;
From the flex spec:
One use of auto margins in the main axis is to separate flex items into distinct "groups". The following example shows how to use this to reproduce a common UI pattern - a single bar of actions with some aligned on the left and others aligned on the right.
.wrap div:last-child {
margin-left: auto;
}
.wrap {_x000D_
display: flex;_x000D_
background: #ccc;_x000D_
width: 100%;_x000D_
justify-content: space-between;_x000D_
}_x000D_
.wrap div:last-child {_x000D_
margin-left: auto;_x000D_
}_x000D_
.result {_x000D_
background: #ccc;_x000D_
margin-top: 20px;_x000D_
}_x000D_
.result:after {_x000D_
content: '';_x000D_
display: table;_x000D_
clear: both;_x000D_
}_x000D_
.result div {_x000D_
float: left;_x000D_
}_x000D_
.result div:last-child {_x000D_
float: right;_x000D_
}
_x000D_
<div class="wrap">_x000D_
<div>One</div>_x000D_
<div>Two</div>_x000D_
<div>Three</div>_x000D_
</div>_x000D_
_x000D_
<!-- DESIRED RESULT -->_x000D_
<div class="result">_x000D_
<div>One</div>_x000D_
<div>Two</div>_x000D_
<div>Three</div>_x000D_
</div>
_x000D_
Note:
You could achieve a similar effect by setting flex-grow:1 on the middle flex item (or shorthand flex:1
) which would push the last item all the way to the right. (Demo)
The obvious difference however is that the middle item becomes bigger than it may need to be. Add a border to the flex items to see the difference.
.wrap {_x000D_
display: flex;_x000D_
background: #ccc;_x000D_
width: 100%;_x000D_
justify-content: space-between;_x000D_
}_x000D_
.wrap div {_x000D_
border: 3px solid tomato;_x000D_
}_x000D_
.margin div:last-child {_x000D_
margin-left: auto;_x000D_
}_x000D_
.grow div:nth-child(2) {_x000D_
flex: 1;_x000D_
}_x000D_
.result {_x000D_
background: #ccc;_x000D_
margin-top: 20px;_x000D_
}_x000D_
.result:after {_x000D_
content: '';_x000D_
display: table;_x000D_
clear: both;_x000D_
}_x000D_
.result div {_x000D_
float: left;_x000D_
}_x000D_
.result div:last-child {_x000D_
float: right;_x000D_
}
_x000D_
<div class="wrap margin">_x000D_
<div>One</div>_x000D_
<div>Two</div>_x000D_
<div>Three</div>_x000D_
</div>_x000D_
_x000D_
<div class="wrap grow">_x000D_
<div>One</div>_x000D_
<div>Two</div>_x000D_
<div>Three</div>_x000D_
</div>_x000D_
_x000D_
<!-- DESIRED RESULT -->_x000D_
<div class="result">_x000D_
<div>One</div>_x000D_
<div>Two</div>_x000D_
<div>Three</div>_x000D_
</div>
_x000D_
I have just compile it and it compiles fine without the implicit import, probably you're seeing a stale cache or something of your IDE.
Have you tried compiling from the command line?
I have the exact same version:
Probably you're thinking the warning is an error.
UPDATE
It looks like you have a Arrays.class
file in the directory where you're trying to compile ( probably created before ). That's why the explicit import solves the problem. Try copying your source code to a clean new directory and try again. You'll see there is no error this time. Or, clean up your working directory and remove the Arrays.class
Both Oracle Data Provider for .NET (from Oracle) and .NET Framework Data Provider for Oracle (from Microsoft) require Oracle Client installed on machine.
You could fill the dependend cell (D2) by a User Defined Function (VBA Macro Function) that takes the value of the C2-Cell as input parameter, returning the current date as ouput.
Having C2 as input parameter for the UDF in D2 tells Excel that it needs to reevaluate D2 everytime C2 changes (that is if auto-calculation of formulas is turned on for the workbook).
EDIT:
Here is some code:
For the UDF:
Public Function UDF_Date(ByVal data) As Date
UDF_Date = Now()
End Function
As Formula in D2:
=UDF_Date(C2)
You will have to give the D2-Cell a Date-Time Format, or it will show a numeric representation of the date-value.
And you can expand the formula over the desired range by draging it if you keep the C2 reference in the D2-formula relative.
Note: This still might not be the ideal solution because every time Excel recalculates the workbook the date in D2 will be reset to the current value. To make D2 only reflect the last time C2 was changed there would have to be some kind of tracking of the past value(s) of C2. This could for example be implemented in the UDF by providing also the address alonside the value of the input parameter, storing the input parameters in a hidden sheet, and comparing them with the previous values everytime the UDF gets called.
Addendum:
Here is a sample implementation of an UDF that tracks the changes of the cell values and returns the date-time when the last changes was detected. When using it, please be aware that:
The usage of the UDF is the same as described above.
The UDF works only for single cell input ranges.
The cell values are tracked by storing the last value of cell and the date-time when the change was detected in the document properties of the workbook. If the formula is used over large datasets the size of the file might increase considerably as for every cell that is tracked by the formula the storage requirements increase (last value of cell + date of last change.) Also, maybe Excel is not capable of handling very large amounts of document properties and the code might brake at a certain point.
If the name of a worksheet is changed all the tracking information of the therein contained cells is lost.
The code might brake for cell-values for which conversion to string is non-deterministic.
The code below is not tested and should be regarded only as proof of concept. Use it at your own risk.
Public Function UDF_Date(ByVal inData As Range) As Date
Dim wb As Workbook
Dim dProps As DocumentProperties
Dim pValue As DocumentProperty
Dim pDate As DocumentProperty
Dim sName As String
Dim sNameDate As String
Dim bDate As Boolean
Dim bValue As Boolean
Dim bChanged As Boolean
bDate = True
bValue = True
bChanged = False
Dim sVal As String
Dim dDate As Date
sName = inData.Address & "_" & inData.Worksheet.Name
sNameDate = sName & "_dat"
sVal = CStr(inData.Value)
dDate = Now()
Set wb = inData.Worksheet.Parent
Set dProps = wb.CustomDocumentProperties
On Error Resume Next
Set pValue = dProps.Item(sName)
If Err.Number <> 0 Then
bValue = False
Err.Clear
End If
On Error GoTo 0
If Not bValue Then
bChanged = True
Set pValue = dProps.Add(sName, False, msoPropertyTypeString, sVal)
Else
bChanged = pValue.Value <> sVal
If bChanged Then
pValue.Value = sVal
End If
End If
On Error Resume Next
Set pDate = dProps.Item(sNameDate)
If Err.Number <> 0 Then
bDate = False
Err.Clear
End If
On Error GoTo 0
If Not bDate Then
Set pDate = dProps.Add(sNameDate, False, msoPropertyTypeDate, dDate)
End If
If bChanged Then
pDate.Value = dDate
Else
dDate = pDate.Value
End If
UDF_Date = dDate
End Function
Make the insertion of the date conditional upon the range.
This has an advantage of not changing the dates unless the content of the cell is changed, and it is in the range C2:C2, even if the sheet is closed and saved, it doesn't recalculate unless the adjacent cell changes.
Adapted from this tip and @Paul S answer
Private Sub Worksheet_Change(ByVal Target As Range)
Dim R1 As Range
Dim R2 As Range
Dim InRange As Boolean
Set R1 = Range(Target.Address)
Set R2 = Range("C2:C20")
Set InterSectRange = Application.Intersect(R1, R2)
InRange = Not InterSectRange Is Nothing
Set InterSectRange = Nothing
If InRange = True Then
R1.Offset(0, 1).Value = Now()
End If
Set R1 = Nothing
Set R2 = Nothing
End Sub
In your Android Developer Tools , From the SDK Manager, install Extras > Google Cloud Messaging for Android Library . After the installation is complete restart your SDK.Then navigate to sdk\extras\google\gcm\gcm-client\dist . there will be your gcm.jar file.
As of 6-6-15 the Web Root location is at /tmp/deployment/application/ROOT using Tomcat.
This works good
worksheet.get_Range("A1","A14").Cells.HorizontalAlignment =
Microsoft.Office.Interop.Excel.XlHAlign.xlHAlignLeft;
In my case the problem was a C++/CLI library in which there was a call to the NtQuerySystemInformation; for some kind of reason sometimes (and under mysterious circumstances), when it was called the CLR heap got corrupted and the application crashed.
I've resolved the problem using a "custom heap" created with HeapCreate and allocating there the buffers used by that function.
What even is ‘children’?
The React docs say that you can use
props.children
on components that represent ‘generic boxes’ and that don’t know their children ahead of time. For me, that didn’t really clear things up. I’m sure for some, that definition makes perfect sense but it didn’t for me.My simple explanation of what
this.props.children
does is that it is used to display whatever you include between the opening and closing tags when invoking a component.A simple example:
Here’s an example of a stateless function that is used to create a component. Again, since this is a function, there is no
this
keyword so just useprops.children
const Picture = (props) => {
return (
<div>
<img src={props.src}/>
{props.children}
</div>
)
}
This component contains an
<img>
that is receiving someprops
and then it is displaying{props.children}
.Whenever this component is invoked
{props.children}
will also be displayed and this is just a reference to what is between the opening and closing tags of the component.
//App.js
render () {
return (
<div className='container'>
<Picture key={picture.id} src={picture.src}>
//what is placed here is passed as props.children
</Picture>
</div>
)
}
Instead of invoking the component with a self-closing tag
<Picture />
if you invoke it will full opening and closing tags<Picture> </Picture>
you can then place more code between it.This de-couples the
<Picture>
component from its content and makes it more reusable.
Reference: A quick intro to React’s props.children
Tarkus's answer works well. However, I would suggest replacing VIEWSTATE with SESSION.
The current page's VIEWSTATE only works while the current page posts back to itself and is gone once the user is redirected away to another page. SESSION persists the sort order on more than just the current page's post-back. It persists it across the entire duration of the session. This means that the user can surf around to other pages, and when he comes back to the given page, the sort order he last used still remains. This is usually more convenient.
There are other methods, too, such as persisting user profiles.
I recommend this article for a very good explanation of ViewState and how it works with a web page's life cycle: https://msdn.microsoft.com/en-us/library/ms972976.aspx
To understand the difference between VIEWSTATE, SESSION and other ways of persisting variables, I recommend this article: https://msdn.microsoft.com/en-us/library/75x4ha6s.aspx
In the below investigation as API, I use http://example.com instead of http://myApiUrl/login from your question, because this first one working.
I assume that your page is on http://my-site.local:8088.
The reason why you see different results is that Postman:
Host=example.com
(your API)Origin
This is similar to browsers' way of sending requests when the site and API has the same domain (browsers also set the header item Referer=http://my-site.local:8088
, however I don't see it in Postman). When Origin
header is not set, usually servers allow such requests by default.
This is the standard way how Postman sends requests. But a browser sends requests differently when your site and API have different domains, and then CORS occurs and the browser automatically:
Host=example.com
(yours as API)Origin=http://my-site.local:8088
(your site)(The header Referer
has the same value as Origin
). And now in Chrome's Console & Networks tab you will see:
When you have Host != Origin
this is CORS, and when the server detects such a request, it usually blocks it by default.
Origin=null
is set when you open HTML content from a local directory, and it sends a request. The same situation is when you send a request inside an <iframe>
, like in the below snippet (but here the Host
header is not set at all) - in general, everywhere the HTML specification says opaque origin, you can translate that to Origin=null
. More information about this you can find here.
fetch('http://example.com/api', {method: 'POST'});
_x000D_
Look on chrome-console > network tab
_x000D_
If you do not use a simple CORS request, usually the browser automatically also sends an OPTIONS request before sending the main request - more information is here. The snippet below shows it:
fetch('http://example.com/api', {_x000D_
method: 'POST',_x000D_
headers: { 'Content-Type': 'application/json'}_x000D_
});
_x000D_
Look in chrome-console -> network tab to 'api' request._x000D_
This is the OPTIONS request (the server does not allow sending a POST request)
_x000D_
You can change the configuration of your server to allow CORS requests.
Here is an example configuration which turns on CORS on nginx (nginx.conf file) - be very careful with setting always/"$http_origin"
for nginx and "*"
for Apache - this will unblock CORS from any domain.
location ~ ^/index\.php(/|$) {_x000D_
..._x000D_
add_header 'Access-Control-Allow-Origin' "$http_origin" always;_x000D_
add_header 'Access-Control-Allow-Credentials' 'true' always;_x000D_
if ($request_method = OPTIONS) {_x000D_
add_header 'Access-Control-Allow-Origin' "$http_origin"; # DO NOT remove THIS LINES (doubled with outside 'if' above)_x000D_
add_header 'Access-Control-Allow-Credentials' 'true';_x000D_
add_header 'Access-Control-Max-Age' 1728000; # cache preflight value for 20 days_x000D_
add_header 'Access-Control-Allow-Methods' 'GET, POST, OPTIONS';_x000D_
add_header 'Access-Control-Allow-Headers' 'My-First-Header,My-Second-Header,Authorization,Content-Type,Accept,Origin';_x000D_
add_header 'Content-Length' 0;_x000D_
add_header 'Content-Type' 'text/plain charset=UTF-8';_x000D_
return 204;_x000D_
}_x000D_
}
_x000D_
Here is an example configuration which turns on CORS on Apache (.htaccess file)
# ------------------------------------------------------------------------------_x000D_
# | Cross-domain Ajax requests |_x000D_
# ------------------------------------------------------------------------------_x000D_
_x000D_
# Enable cross-origin Ajax requests._x000D_
# http://code.google.com/p/html5security/wiki/CrossOriginRequestSecurity_x000D_
# http://enable-cors.org/_x000D_
_x000D_
# <IfModule mod_headers.c>_x000D_
# Header set Access-Control-Allow-Origin "*"_x000D_
# </IfModule>_x000D_
_x000D_
# Header set Header set Access-Control-Allow-Origin "*"_x000D_
# Header always set Access-Control-Allow-Credentials "true"_x000D_
_x000D_
Access-Control-Allow-Origin "http://your-page.com:80"_x000D_
Header always set Access-Control-Allow-Methods "POST, GET, OPTIONS, DELETE, PUT"_x000D_
Header always set Access-Control-Allow-Headers "My-First-Header,My-Second-Header,Authorization, content-type, csrf-token"
_x000D_
in my main script detectiveROB.py
file i need call passGen
function which generate password hash and that functions is under modules\passwordGen.py
The quickest and easiest solution for me is
Below is my directory structure
So in detectiveROB.py
i have import my function with below syntax
from modules.passwordGen import passGen
Parse a filename from the fully qualified path name (e.g., c:\temp\my.bat) to any component (e.g., File.ext).
Single line of code:
For %%A in ("C:\Folder1\Folder2\File.ext") do (echo %%~fA)
You can change out "C:\Folder1\Folder2\File.ext" for any full path and change "%%~fA" for any of the other options you will find by running "for /?" at the command prompt.
Elaborated Code
set "filename=C:\Folder1\Folder2\File.ext"
For %%A in ("%filename%") do (
echo full path: %%~fA
echo drive: %%~dA
echo path: %%~pA
echo file name only: %%~nA
echo extension only: %%~xA
echo expanded path with short names: %%~sA
echo attributes: %%~aA
echo date and time: %%~tA
echo size: %%~zA
echo drive + path: %%~dpA
echo name.ext: %%~nxA
echo full path + short name: %%~fsA)
Standalone Batch Script
Save as C:\cmd\ParseFn.cmd.
Add C:\cmd to your PATH environment variable and use it to store all of you reusable batch scripts.
@echo off
@echo ::___________________________________________________________________::
@echo :: ::
@echo :: ParseFn ::
@echo :: ::
@echo :: Chris Advena ::
@echo ::___________________________________________________________________::
@echo.
::
:: Process arguements
::
if "%~1%"=="/?" goto help
if "%~1%"=="" goto help
if "%~2%"=="/?" goto help
if "%~2%"=="" (
echo !!! Error: ParseFn requires two inputs. !!!
goto help)
set in=%~1%
set out=%~2%
:: echo "%in:~3,1%" "%in:~0,1%"
if "%in:~3,1%"=="" (
if "%in:~0,1%"=="/" (
set in=%~2%
set out=%~1%)
)
::
:: Parse filename
::
set "ret="
For %%A in ("%in%") do (
if "%out%"=="/f" (set ret=%%~fA)
if "%out%"=="/d" (set ret=%%~dA)
if "%out%"=="/p" (set ret=%%~pA)
if "%out%"=="/n" (set ret=%%~nA)
if "%out%"=="/x" (set ret=%%~xA)
if "%out%"=="/s" (set ret=%%~sA)
if "%out%"=="/a" (set ret=%%~aA)
if "%out%"=="/t" (set ret=%%~tA)
if "%out%"=="/z" (set ret=%%~zA)
if "%out%"=="/dp" (set ret=%%~dpA)
if "%out%"=="/nx" (set ret=%%~nxA)
if "%out%"=="/fs" (set ret=%%~fsA)
)
echo ParseFn result: %ret%
echo.
goto end
:help
@echo off
:: @echo ::___________________________________________________________________::
:: @echo :: ::
:: @echo :: ParseFn Help ::
:: @echo :: ::
:: @echo :: Chris Advena ::
:: @echo ::___________________________________________________________________::
@echo.
@echo ParseFn parses a fully qualified path name (e.g., c:\temp\my.bat)
@echo into the requested component, such as drive, path, filename,
@echo extenstion, etc.
@echo.
@echo Syntax: /switch filename
@echo where,
@echo filename is a fully qualified path name including drive,
@echo folder(s), file name, and extension
@echo.
@echo Select only one switch:
@echo /f - fully qualified path name
@echo /d - drive letter only
@echo /p - path only
@echo /n - file name only
@echo /x - extension only
@echo /s - expanded path contains short names only
@echo /a - attributes of file
@echo /t - date/time of file
@echo /z - size of file
@echo /dp - drive + path
@echo /nx - file name + extension
@echo /fs - full path + short name
@echo.
:end
:: @echo ::___________________________________________________________________::
:: @echo :: ::
:: @echo :: ParseFn finished ::
:: @echo ::___________________________________________________________________::
:: @echo.
In my case, where the timezones are not available on the server, this works great:
SELECT CONVERT_TZ(`date_field`,'+00:00',@@global.time_zone) FROM `table`
Note: global.time_zone uses the server timezone. You have to make sure, that it has the desired timezone!
Use PDF tools from python https://pypi.python.org/pypi/pdftools/1.0.6
Download the tar.gz file and uncompress it and run the command like below
python pdftools-1.1.0/pdfmerge.py -o output.pdf -d file1.pdf file2.pdf file3
You should install pyhton3 before you run the above command
This tools support the below
You can find more details in the below link and it is open source
Instead of git pull
also try git pull origin master
I changed password, and the first command gave error:
$ git pull
remote: Invalid username or password.
fatal: Authentication failed for ...
After git pull origin master
, it asked for password and seemed to update itself
You can call a controller action from a JavaScript function but not vice-versa. How would the server know which client to target? The server simply responds to requests.
An example of calling a controller action from JavaScript (using the jQuery JavaScript library) in the response sent to the client.
$.ajax({
type: "POST",
url: "/Controller/Action", // the URL of the controller action method
data: null, // optional data
success: function(result) {
// do something with result
},
error : function(req, status, error) {
// do something with error
}
});
Look at an HTML parser such as TagSoup, HTMLCleaner or NekoHTML.
It's not exactly the answer to this question but I dealt with this problem with the Shift + Win + [left,right] arrow keys
shortcut. You can move the currently active window to another monitor with it.
I had the exact same error, but then I later found out that I forget to activate the conda environment which had django and other required packages installed.
Solution: Create a conda or virtual environment with django installed,
and activate it before you use the command:
$ python manage.py migrate
Mutexes are useful in situations where you need to enforce exclusive access to a resource accross multiple processes, where a regular lock won't help since it only works accross threads.
Fortran can handle array, especially multidimensional arrays, very conveniently. Slicing elements of multidimensional array in Fortran can be much easier than that in C/C++. C++ now has libraries can do the job, such as Boost or Eigen, but they are after all external libraries. In Fortran these functions are intrinsic.
Whether Fortran is faster or more convenient for developing mostly depends on the job you need to finish. As a scientific computation person for geophysics, I did most of computation in Fortran (I mean modern Fortran, >=F90).
From the composer site (it's clear enough)
require#
Lists packages required by this package. The package will not be installed unless those requirements can be met.
require-dev (root-only)#
Lists packages required for developing this package, or running tests, etc. The dev requirements of the root package are installed by default. Both install or update support the --no-dev option that prevents dev dependencies from being installed.
Using require-dev in Composer you can declare the dependencies you need for development/testing the project but don't need in production. When you upload the project to your production server (using git) require-dev
part would be ignored.
Also check this answer posted by the author and this post as well.
For me it was occurring in a .net project and turned out to be something to do with my Visual Studio installation. I downloaded and installed the latest .net core sdk separately and then reinstalled VS and it worked.
If your array is not initialized then it contains randoms values and cannot be checked !
To initialize your array with 0 values:
int array[5] = {0};
Then you can check if the value is 0:
array[4] == 0;
When you compare to NULL, it compares to 0 as the NULL is defined as integer value 0 or 0L.
If you have an array of pointers, better use the nullptr
value to check:
char* array[5] = {nullptr}; // we defined an array of char*, initialized to nullptr
if (array[4] == nullptr)
// do something
Run the following command to get it solved :
autopep8 -i <filename>.py
This will update your code and solve all indentation Errors :)
Hope this will solve
use Integer as the type and provide setter/getter accordingly..
private Integer num;
public Integer getNum()...
public void setNum(Integer num)...
A better, more modern, answer to this question is to use the %pip
magic, like:
%pip install scipy
That will automatically use the correct Python version. Using !pip
might be tied to a different version of Python, and then you might not find the package after installing it.
And in colab, the magic gives a nice message and button if it detects that you need to restart the runtime if pip updated a packaging you have already imported.
BTW, there is also a %conda
magic for doing the same with conda.
First approach with Windows Service is not easy..
A long time ago, I wrote a C# service.
This is the logic of the Service class (tested, works fine):
namespace MyServiceApp
{
public class MyService : ServiceBase
{
private System.Timers.Timer timer;
protected override void OnStart(string[] args)
{
this.timer = new System.Timers.Timer(30000D); // 30000 milliseconds = 30 seconds
this.timer.AutoReset = true;
this.timer.Elapsed += new System.Timers.ElapsedEventHandler(this.timer_Elapsed);
this.timer.Start();
}
protected override void OnStop()
{
this.timer.Stop();
this.timer = null;
}
private void timer_Elapsed(object sender, System.Timers.ElapsedEventArgs e)
{
MyServiceApp.ServiceWork.Main(); // my separate static method for do work
}
public MyService()
{
this.ServiceName = "MyService";
}
// service entry point
static void Main()
{
System.ServiceProcess.ServiceBase.Run(new MyService());
}
}
}
I recommend you write your real service work in a separate static method (why not, in a console application...just add reference to it), to simplify debugging and clean service code.
Make sure the interval is enough, and write in log ONLY in OnStart and OnStop overrides.
Hope this helps!
f=open('list1.txt')
f1=open('output.txt','a')
for x in f.readlines():
f1.write(x)
f.close()
f1.close()
this will work 100% try this once
go to dosbox installation directory (on my machine that is C:\Program Files (x86)\DOSBox-0.74 ) as you see the version number is part of the installation directory name.
run "DOSBox 0.74 Options.bat"
the script starts notepad with configuration file: here change
windowresolution=1600x800
output=ddraw
(the resolution can't be changed if output=surface - that's the default).
Implementation wise you will often see inside super() statement in subclasses constructors, something like:
public class A extends AbstractB{
public A(...){
super(String constructorArgForB, ...);
...
}
}
In regards to veggerby's solution, if you are trying to implement it on a VB app, be careful trying to run the supplied code through a translator. The following will work:
Imports System.Web
Imports System.Web.Services
Imports System.Web.SessionState
Public Class SessionHeartbeatHttpHandler
Implements IHttpHandler
Implements IRequiresSessionState
ReadOnly Property IsReusable() As Boolean Implements IHttpHandler.IsReusable
Get
Return False
End Get
End Property
Sub ProcessRequest(ByVal context As HttpContext) Implements IHttpHandler.ProcessRequest
context.Session("Heartbeat") = DateTime.Now
End Sub
End Class
Also, instead of calling like heartbeat() function like:
setTimeout("heartbeat()", 300000);
Instead, call it like:
setInterval(function () { heartbeat(); }, 300000);
Number one, setTimeout only fires once whereas setInterval will fire repeatedly. Number two, calling heartbeat() like a string didn't work for me, whereas calling it like an actual function did.
And I can absolutely 100% confirm that this solution will overcome GoDaddy's ridiculous decision to force a 5 minute apppool session in Plesk!
you may also like this
var Grp = Model.GroupBy(item => item.Order.Customer)
.Select(group => new
{
Customer = Model.First().Customer,
CustomerId= group.Key,
Orders= group.ToList()
})
.ToList();
Avoid using strcat
in C code. The cleanest and, most importantly, the safest way is to use snprintf
:
char buf[256];
snprintf(buf, sizeof buf, "%s%s%s%s", str1, str2, str3, str4);
Some commenters raised an issue that the number of arguments may not match the format string and the code will still compile, but most compilers already issue a warning if this is the case.
malloc will do.
int rows = 20;
int cols = 20;
int *array;
array = malloc(rows * cols * sizeof(int));
Refer the below article for help:-
http://courses.cs.vt.edu/~cs2704/spring00/mcquain/Notes/4up/Managing2DArrays.pdf
I think the simplest way is:
dos2unix $(find . -type f)
First make sure you have installed Nginx with the HTTP rewrite module. To install this we need to have pcre-library
If the above mentioned are done or if you already have them, then just add the below code in your nginx server block
if ($host !~* ^www\.) {
rewrite ^(.*)$ http://www.$host$1 permanent;
}
To remove www from every request you can use
if ($host = 'www.your_domain.com' ) {
rewrite ^/(.*)$ http://your_domain.com/$1 permanent;
}
so your server block will look like
server {
listen 80;
server_name test.com;
if ($host !~* ^www\.) {
rewrite ^(.*)$ http://www.$host$1 permanent;
}
client_max_body_size 10M;
client_body_buffer_size 128k;
root /home/test/test/public;
passenger_enabled on;
rails_env production;
error_page 500 502 503 504 /50x.html;
location = /50x.html {
root html;
}
}
use this function anywhere easily:
public static void setEditTextMaxLength(EditText editText, int length) {
InputFilter[] FilterArray = new InputFilter[1];
FilterArray[0] = new InputFilter.LengthFilter(length);
editText.setFilters(FilterArray);
}