I faced this exact same issue with Laravel 8.x on Ubuntu 20.
I run: sudo apt install php7.4-xml
and composer update
within the project directory. This fixed the issue.
To revert all the migrations which are applied to DB simply run:
update-database 0
It should be followed with running Remove-Migration
as many times as there are migration files visible in the Migration directory. The command deletes the latest migration and also updates the snapshot.
A disclaimer: This solution is less secure, bad practice, don't do this.
I had a duplicate error message--I'm behind a corporate VPN/firewall. I was able to resolve this issue by adding a .typingsrc file to my user directory (C:\Users\MyUserName\.typingsrc
in windows). Of course, anytime you're circumventing SSL you should be yapping to your sys admins to fix the certificate issue.
Change the registry URL from https to http, and as seen in nfiles' answser above, set rejectUnauthorized to false.
.typingsrc (placed in project directory or in user root directory)
{
"rejectUnauthorized": false,
"registryURL": "http://api.typings.org/"
}
Optionally add your github token (I didn't find success until I had added this too.)
{
"rejectUnauthorized": false,
"registryURL": "http://api.typings.org/",
"githubToken": "YourGitHubToken"
}
See instructions for setting up your github token at https://github.com/blog/1509-personal-api-tokens
In Python you can do it as in the code below:
{ "statusCode" : 200,
'headers':
{'Content-Type': 'application/json',
'Access-Control-Allow-Origin': "*"
},
"body": json.dumps(
{
"temperature" : tempArray,
"time": timeArray
})
}
To remove tracked files (first_file.txt) from git:
git rm first_file.txt
And to remove untracked files, use:
rm -r explore_california
I think what some people were trying to get to above is that if you want to programatically make your OWIN server "come to life", you'd be calling something like this:
using Microsoft.Owin.Hosting;
IDisposable _server = WebApp.Start<StartupMethod>("http://+:5000");
// Start Accepting HTTP via all interfaces on port 5000
Once you make this call, you will see the call to StartupMethod() fire in the debugger
origin/xxx
branches are always pointer to a remote. You cannot check them out as they're not pointer to your local repository (you only checkout the commit. That's why you won't see the name written in the command line interface branch marker, only the commit hash).
What you need to do to update the remote is to force push your local changes to master:
git checkout master
git reset --hard e3f1e37
git push --force origin master
# Then to prove it (it won't print any diff)
git diff master..origin/master
Install nvm using the following commands in the same order.nvm stands for node version manager.
sudo apt-get update
sudo apt-get install build-essential checkinstall libssl-dev
curl -o- https://raw.githubusercontent.com/creationix/nvm/v0.32.1/install.sh | bash
In case the above command does not work add -k after -o- .It should be as below:
curl -o- -k https://raw.githubusercontent.com/creationix/nvm/v0.32.1/install.sh | bash
Then nvm ls-remote
to see the available versions.
In case you get N/A in return,run the following.
export NVM_NODEJS_ORG_MIRROR=http://nodejs.org/dist
alternatively you can run the following commands too
export NVM_DIR="$HOME/.nvm"
[ -s "$NVM_DIR/nvm.sh" ] && \. "$NVM_DIR/nvm.sh" # This loads nvm
[ -s "$NVM_DIR/bash_completion" ] && \. "$NVM_DIR/bash_completion" # This loads nvm bash_completion
Then nvm install #.#.#
replacing # by version(say nvm 8.9.4)
finally nvm use #.#.#
I am using this solution:
Create a separate repository that holds folder node_modules. If you have native modules that should be build for specific platform then create a separate repository for each platform.
Attach these repositories to your project repository with git submodule
:
git submodule add .../your_project_node_modules_windows.git node_modules_windows
git submodule add .../your_project_node_modules_linux_x86_64 node_modules_linux_x86_64
Create a link from platform-specific node_modules
to node_modules
directory and add node_modules
to .gitignore
.
Run npm install
.
Commit submodule repository changes.
Commit your project repository changes.
So you can easily switch between node_modules
on different platforms (for example, if you are developing on OS X and deploying to Linux).
It took a few tries, but I was able to get your jsFiddle to work (for Webkit only).
There's still an issue with the animation speed when the user re-enters the div.
Basically, just set the current rotation value to a variable, then do some calculations on that value (to convert to degrees), then set that value back to the element on mouse move and mouse enter.
Check out the jsFiddle: http://jsfiddle.net/4Vz63/46/
Check out this article for more information, including how to add cross-browser compatibility: http://css-tricks.com/get-value-of-css-rotation-through-javascript/
A soft git reset will put committed changes back into your index. Next, checkout the branch you had intended to commit on. Then git commit with a new commit message.
git reset --soft <commit>
git checkout <branch>
git commit -m "Commit message goes here"
From git docs:
git reset [<mode>] [<commit>]
This form resets the current branch head to and possibly updates the index (resetting it to the tree of ) and the working tree depending on . If is omitted, defaults to --mixed. The must be one of the following:
--soft
Does not touch the index file or the working tree at all (but resets the head to , just like all modes do). This leaves all your changed files "Changes to be committed", as git status would put it.
You remove the original image here:
newImg.animate(css, SPEED, function() {
img.remove();
newImg.removeClass('morpher');
(callback || function() {})();
});
And all that's left behind is newImg
. Then you reset link references the image using #rocket
:
$("#rocket").attr('src', ...
But your newImg
doesn't have an id
attribute let alone an id
of rocket
.
To fix this, you need to remove img
and then set the id
attribute of newImg
to rocket
:
newImg.animate(css, SPEED, function() {
var old_id = img.attr('id');
img.remove();
newImg.attr('id', old_id);
newImg.removeClass('morpher');
(callback || function() {})();
});
And then you'll get the shiny black rocket back again: http://jsfiddle.net/ambiguous/W2K9D/
UPDATE: A better approach (as noted by mellamokb) would be to hide the original image and then show it again when you hit the reset button. First, change the reset action to something like this:
$("#resetlink").click(function(){
clearInterval(timerRocket);
$("#wrapper").css('top', '250px');
$('.throbber, .morpher').remove(); // Clear out the new stuff.
$("#rocket").show(); // Bring the original back.
});
And in the newImg.load
function, grab the images original size:
var orig = {
width: img.width(),
height: img.height()
};
And finally, the callback for finishing the morphing animation becomes this:
newImg.animate(css, SPEED, function() {
img.css(orig).hide();
(callback || function() {})();
});
New and improved: http://jsfiddle.net/ambiguous/W2K9D/1/
The leaking of $('.throbber, .morpher')
outside the plugin isn't the best thing ever but it isn't a big deal as long as it is documented.
Every time a new device is opened par() will reset, so another option is simply do dev.off()
and continue.
In case anyone's interested, here's my solution to the problem. It works completely independently of the Draggable objects, by using events on the Droppable object instead. It works quite well:
$(function() {
$(".draggable").draggable({
opacity: .4,
create: function(){$(this).data('position',$(this).position())},
cursor:'move',
start:function(){$(this).stop(true,true)}
});
$('.active').droppable({
over: function(event, ui) {
$(ui.helper).unbind("mouseup");
},
drop:function(event, ui){
snapToMiddle(ui.draggable,$(this));
},
out:function(event, ui){
$(ui.helper).mouseup(function() {
snapToStart(ui.draggable,$(this));
});
}
});
});
function snapToMiddle(dragger, target){
var topMove = target.position().top - dragger.data('position').top + (target.outerHeight(true) - dragger.outerHeight(true)) / 2;
var leftMove= target.position().left - dragger.data('position').left + (target.outerWidth(true) - dragger.outerWidth(true)) / 2;
dragger.animate({top:topMove,left:leftMove},{duration:600,easing:'easeOutBack'});
}
function snapToStart(dragger, target){
dragger.animate({top:0,left:0},{duration:600,easing:'easeOutBack'});
}
Right click on the folder which is under SVN control, go to TortoiseSVN ? Show log. Write down the revision you want to revert to and then go to TortoiseSVN ? Update to revision....
No need to uninstall it or going crazy with symbolic links, just use an alias
. I faced the same problem when upgrading to python 3.7.1.
Just install the new python version using brew install python
then in your .bash_profile
create an alias pointing to the new python version; like this: alias python="/usr/local/bin/python3"
then save and run source ~/.bash_profile
.
Done.
git reset c14809fafb08b9e96ff2879999ba8c807d10fb07
is what you're after...
svn revert filename
this should revert a single file.
you have to git add css/mobile.css
the new file and git rm css/iphone.css
, so git knows about it. then it will show the same output in git status
you can see it clearly in the status output (the new name of the file):
# Untracked files:
# (use "git add <file>..." to include in what will be committed)
and (the old name):
# Changed but not updated:
# (use "git add/rm <file>..." to update what will be committed)
i think behind the scenes git mv
is nothing more than a wrapper script which does exactly that: delete the file from the index and add it under a different name
If your changes have already been pushed to a public, shared remote, and you want to revert all commits between HEAD
and <sha-id>
, then you can pass a commit range to git revert
,
git revert 56e05f..HEAD
and it will revert all commits between 56e05f
and HEAD
(excluding the start point of the range, 56e05f
).
To understand how the state of your working copy is different in both scenarios, you must understand the concept of the BASE revision:
BASE
The revision number of an item in a working copy. If the item has been locally modified, this refers to the way the item appears without those local modifications.
Your working copy contains a snapshot of each file (hidden in a .svn folder) in this BASE revision, meaning as it was when last retrieved from the repository. This explains why working copies take 2x the space and how it is possible that you can examine and even revert local modifications without a network connection.
Update item to Revision changes this base revision, making BASE out of date. When you try to commit local modifications, SVN will notice that your BASE does not match the repository HEAD. The commit will be refused until you do an update (and possibly a merge) to fix this.
Revert to revision does not change BASE. It is conceptually almost the same as manually editing the file to match an earlier revision.
With Java-11+, you can make use of the String.isBlank
API to check if the given string is not all made up of whitespace -
String str1 = " ";
System.out.println(str1.isBlank()); // made up of all whitespaces, prints true
String str2 = " a";
System.out.println(str2.isBlank()); // prints false
The javadoc for the same is :
/**
* Returns {@code true} if the string is empty or contains only
* {@link Character#isWhitespace(int) white space} codepoints,
* otherwise {@code false}.
*
* @return {@code true} if the string is empty or contains only
* {@link Character#isWhitespace(int) white space} codepoints,
* otherwise {@code false}
*
* @since 11
*/
public boolean isBlank()
There's a short overview at MinGW-w64 Wiki:
Why doesn't mingw-w64 gcc support Dwarf-2 Exception Handling?
The Dwarf-2 EH implementation for Windows is not designed at all to work under 64-bit Windows applications. In win32 mode, the exception unwind handler cannot propagate through non-dw2 aware code, this means that any exception going through any non-dw2 aware "foreign frames" code will fail, including Windows system DLLs and DLLs built with Visual Studio. Dwarf-2 unwinding code in gcc inspects the x86 unwinding assembly and is unable to proceed without other dwarf-2 unwind information.
The SetJump LongJump method of exception handling works for most cases on both win32 and win64, except for general protection faults. Structured exception handling support in gcc is being developed to overcome the weaknesses of dw2 and sjlj. On win64, the unwind-information are placed in xdata-section and there is the .pdata (function descriptor table) instead of the stack. For win32, the chain of handlers are on stack and need to be saved/restored by real executed code.
GCC GNU about Exception Handling:
GCC supports two methods for exception handling (EH):
- DWARF-2 (DW2) EH, which requires the use of DWARF-2 (or DWARF-3) debugging information. DW-2 EH can cause executables to be slightly bloated because large call stack unwinding tables have to be included in th executables.
- A method based on setjmp/longjmp (SJLJ). SJLJ-based EH is much slower than DW2 EH (penalising even normal execution when no exceptions are thrown), but can work across code that has not been compiled with GCC or that does not have call-stack unwinding information.
[...]
Structured Exception Handling (SEH)
Windows uses its own exception handling mechanism known as Structured Exception Handling (SEH). [...] Unfortunately, GCC does not support SEH yet. [...]
See also:
You can do that with datetime.strptime()
Example:
>>> from datetime import datetime
>>> datetime.strptime('2012-02-10' , '%Y-%m-%d')
datetime.datetime(2012, 2, 10, 0, 0)
>>> _.isoweekday()
5
You can find the table with all the strptime
directive here.
To increment by 2 days if .isweekday() == 6
, you can use timedelta()
:
>>> import datetime
>>> date = datetime.datetime.strptime('2012-02-11' , '%Y-%m-%d')
>>> if date.isoweekday() == 6:
... date += datetime.timedelta(days=2)
...
>>> date
datetime.datetime(2012, 2, 13, 0, 0)
>>> date.strftime('%Y-%m-%d') # if you want a string again
'2012-02-13'
I thought that a solution like Boost.Fusion one for adapting structs and classes would be nice, they even had it at some point, to use enums as a fusion sequence.
So I made just some small macros to generate the code to print the enums. This is not perfect and has nothing to see with Boost.Fusion generated boilerplate code, but can be used like the Boost Fusion macros. I want to really do generate the types needed by Boost.Fusion to integrate in this infrastructure which allows to print names of struct members, but this will happen later, for now this is just macros :
#ifndef SWISSARMYKNIFE_ENUMS_ADAPT_ENUM_HPP
#define SWISSARMYKNIFE_ENUMS_ADAPT_ENUM_HPP
#include <swissarmyknife/detail/config.hpp>
#include <string>
#include <ostream>
#include <boost/preprocessor/cat.hpp>
#include <boost/preprocessor/stringize.hpp>
#include <boost/preprocessor/seq/for_each.hpp>
#define SWISSARMYKNIFE_ADAPT_ENUM_EACH_ENUMERATION_ENTRY_C( \
R, unused, ENUMERATION_ENTRY) \
case ENUMERATION_ENTRY: \
return BOOST_PP_STRINGIZE(ENUMERATION_ENTRY); \
break;
/**
* \brief Adapts ENUM to reflectable types.
*
* \param ENUM_TYPE To be adapted
* \param ENUMERATION_SEQ Sequence of enum states
*/
#define SWISSARMYKNIFE_ADAPT_ENUM(ENUM_TYPE, ENUMERATION_SEQ) \
inline std::string to_string(const ENUM_TYPE& enum_value) { \
switch (enum_value) { \
BOOST_PP_SEQ_FOR_EACH( \
SWISSARMYKNIFE_ADAPT_ENUM_EACH_ENUMERATION_ENTRY_C, \
unused, ENUMERATION_SEQ) \
default: \
return BOOST_PP_STRINGIZE(ENUM_TYPE); \
} \
} \
\
inline std::ostream& operator<<(std::ostream& os, const ENUM_TYPE& value) { \
os << to_string(value); \
return os; \
}
#endif
The old answer below is pretty bad, please don't use that. :)
I've been searching a way which solves this problem without changing too much the enums declaration syntax. I came to a solution which uses the preprocessor to retrieve a string from a stringified enum declaration.
I'm able to define non-sparse enums like this :
SMART_ENUM(State,
enum State {
RUNNING,
SLEEPING,
FAULT,
UNKNOWN
})
And I can interact with them in different ways:
// With a stringstream
std::stringstream ss;
ss << State::FAULT;
std::string myEnumStr = ss.str();
//Directly to stdout
std::cout << State::FAULT << std::endl;
//to a string
std::string myStr = State::to_string(State::FAULT);
//from a string
State::State myEnumVal = State::from_string(State::FAULT);
Based on the following definitions :
#define SMART_ENUM(enumTypeArg, ...) \
namespace enumTypeArg { \
__VA_ARGS__; \
std::ostream& operator<<(std::ostream& os, const enumTypeArg& val) { \
os << swissarmyknife::enums::to_string(#__VA_ARGS__, val); \
return os; \
} \
\
std::string to_string(const enumTypeArg& val) { \
return swissarmyknife::enums::to_string(#__VA_ARGS__, val); \
} \
\
enumTypeArg from_string(const std::string &str) { \
return swissarmyknife::enums::from_string<enumTypeArg>(#__VA_ARGS__, str); \
} \
} \
namespace swissarmyknife { namespace enums {
static inline std::string to_string(const std::string completeEnumDeclaration, size_t enumVal) throw (std::runtime_error) {
size_t begin = completeEnumDeclaration.find_first_of('{');
size_t end = completeEnumDeclaration.find_last_of('}');
const std::string identifiers = completeEnumDeclaration.substr(begin + 1, end );
size_t count = 0;
size_t found = 0;
do {
found = identifiers.find_first_of(",}", found+1);
if (enumVal == count) {
std::string identifiersSubset = identifiers.substr(0, found);
size_t beginId = identifiersSubset.find_last_of("{,");
identifiersSubset = identifiersSubset.substr(beginId+1);
boost::algorithm::trim(identifiersSubset);
return identifiersSubset;
}
++count;
} while (found != std::string::npos);
throw std::runtime_error("The enum declaration provided doesn't contains this state.");
}
template <typename EnumType>
static inline EnumType from_string(const std::string completeEnumDeclaration, const std::string &enumStr) throw (std::runtime_error) {
size_t begin = completeEnumDeclaration.find_first_of('{');
size_t end = completeEnumDeclaration.find_last_of('}');
const std::string identifiers = completeEnumDeclaration.substr(begin + 1, end );
size_t count = 0;
size_t found = 0;
do {
found = identifiers.find_first_of(",}", found+1);
std::string identifiersSubset = identifiers.substr(0, found);
size_t beginId = identifiersSubset.find_last_of("{,");
identifiersSubset = identifiersSubset.substr(beginId+1);
boost::algorithm::trim(identifiersSubset);
if (identifiersSubset == enumStr) {
return static_cast<EnumType>(count);
}
++count;
} while (found != std::string::npos);
throw std::runtime_error("No valid enum value for the provided string");
}
}}
When I'll need support for sparse enum and when I'll have more time I'll improve the to_string and from_string implementations with boost::xpressive, but this will costs in compilation time because of the important templating performed and the executable generated is likely to be really bigger. But this has the advantage that it will be more readable and maintanable than this ugly manual string manipulation code. :D
Otherwise I always used boost::bimap to perform such mappings between enums value and string, but it has to be maintained manually.
Unfortunately while I thought these answers may have worked for me, I struggled with a solution, as I'm using tables inside responsive tables - where the overflow-x is played with.
So, with that in mind, have a look at this link for a cleaner way, which doesn't have the weird width overflow issues. It worked for me in the end and was very easy to implement.
You can do it like this:
var mongoose = require('mongoose');
var _id = mongoose.mongo.BSONPure.ObjectID.fromHexString("4eb6e7e7e9b7f4194e000001");
EDIT: New standard has fromHexString rather than fromString
After much fighting, this is what worked for me:
.pre {
font-weight: 500;
font-family: Courier New, monospace;
white-space: pre-wrap;
word-wrap: break-word;
word-break: break-all;
-webkit-hyphens: auto;
-moz-hyphens: auto;
hyphens: auto;
}
Works in the latest versions of Chrome, Firefox and Opera.
Note that I excluded many of the white-space
properties the others suggested -- that actually broke the pre
indentation for me.
You need spaces inside the [
and ]
brackets:
#!/bin/bash
if [ ! -d /home/mlzboy/b2c2/shared/db ]
then
mkdir -p /home/mlzboy/b2c2/shared/db
fi
I noticed following line from error.
exact fetch returns more than requested number of rows
That means Oracle was expecting one row but It was getting multiple rows. And, only dual table has that characteristic, which returns only one row.
Later I recall, I have done few changes in dual table and when I executed dual table. Then found multiple rows.
So, I truncated dual
table and inserted only row which X
value. And, everything working fine.
Make sure the format of the cell is set to 'general' not 'text' (right click on cell and choose format cell)
Formula should look something like this:
=1+2
Please try this. Maybe this could help you. It works for me.
string sValue = (range.Cells[_row, _column] as Microsoft.Office.Interop.Excel.Range).Value2.ToString();
//_row,_column your column & row number
//eg: string sValue = (sheet.Cells[i + 9, 12] as Microsoft.Office.Interop.Excel.Range).Value2.ToString();
//sValue has your value
.NET 4.0+ has a generic Enum.TryParse
ContentEnum content;
Enum.TryParse(fileContentMessage, out content);
Generally, C# and Java can be just as fast or faster because the JIT compiler -- a compiler that compiles your IL the first time it's executed -- can make optimizations that a C++ compiled program cannot because it can query the machine. It can determine if the machine is Intel or AMD; Pentium 4, Core Solo, or Core Duo; or if supports SSE4, etc.
A C++ program has to be compiled beforehand usually with mixed optimizations so that it runs decently well on all machines, but is not optimized as much as it could be for a single configuration (i.e. processor, instruction set, other hardware).
Additionally certain language features allow the compiler in C# and Java to make assumptions about your code that allows it to optimize certain parts away that just aren't safe for the C/C++ compiler to do. When you have access to pointers there's a lot of optimizations that just aren't safe.
Also Java and C# can do heap allocations more efficiently than C++ because the layer of abstraction between the garbage collector and your code allows it to do all of its heap compression at once (a fairly expensive operation).
Now I can't speak for Java on this next point, but I know that C# for example will actually remove methods and method calls when it knows the body of the method is empty. And it will use this kind of logic throughout your code.
So as you can see, there are lots of reasons why certain C# or Java implementations will be faster.
Now this all said, specific optimizations can be made in C++ that will blow away anything that you could do with C#, especially in the graphics realm and anytime you're close to the hardware. Pointers do wonders here.
So depending on what you're writing I would go with one or the other. But if you're writing something that isn't hardware dependent (driver, video game, etc), I wouldn't worry about the performance of C# (again can't speak about Java). It'll do just fine.
One the Java side, @Swati points out a good article:
Warning: Don't do this if you've already pushed
You want to do:
git reset HEAD~
If you don't want the changes and blow everything away:
git reset --hard HEAD~
func keyboardWillHide(notification: NSNotification) {
if let keyboardSize = (notification.userInfo?[UIKeyboardFrameBeginUserInfoKey] as? NSValue)?.cgRectValue {
if self.view.frame.origin.y != 0{
// self.view.frame.origin.y += keyboardSize.height
self.view.frame.origin.y = 0
}
}
}
$http = isset($_SERVER['HTTPS']) && $_SERVER['HTTPS'] == 'on'? "https://" : "http://";
$dir = str_replace(basename($_SERVER['SCRIPT_NAME']), '',$_SERVER['HTTP_HOST'].$_SERVER['SCRIPT_NAME']);
echo $url = $http . $dir;
// echo $url = $http . $_SERVER["SERVER_NAME"] . $_SERVER['REQUEST_URI'];
Let us say you have a data frame you created and named "Data_output", you can simply export it to same directory by using the following syntax.
write.csv(Data_output, "output.csv", row.names = F, quote = F)
See String formatting in C# for some example uses of String.Format
Actually a better example of formatting int
String.Format("{0:00000}", 15); // "00015"
or use String Interpolation:
$"{15:00000}"; // "00015"
You need to write a little PHP code. When user first click tab you can check is he like the page or not. Below is the sample code
include_once("facebook.php");
// Create our Application instance.
$facebook = new Facebook(array(
'appId' => FACEBOOK_APP_ID,
'secret' => FACEBOOK_SECRET,
'cookie' => true,
));
$signed_request = $facebook->getSignedRequest();
// Return you the Page like status
$like_status = $signed_request["page"]["liked"];
if($like_status)
{
echo 'User Liked the page';
// Place some content you wanna show to user
}else{
echo 'User do not liked the page';
// Place some content that encourage user to like the page
}
To help debug, and make your code better, do this:
private void processLine(String[] strings) {
Integer[] intarray=new Integer[strings.length];
int i=0;
for(String str:strings){
try {
intarray[i]=Integer.parseInt(str);
i++;
} catch (NumberFormatException e) {
throw new IllegalArgumentException("Not a number: " + str + " at index " + i, e);
}
}
}
Also, from a code neatness point, you could reduce the lines by doing this:
for (String str : strings)
intarray[i++] = Integer.parseInt(str);
While installing the Angular Command line tool (CLI), If you are getting Rollback Error then it may be occurring due to your network is connected with your Client Network or your Company Network where you are working on.
So Please try to install CLI in your public network (or Your Mobile's hotspot Network) then you would definitely get CLI installed.
This looks like a behavior difference in the handling of \s
between grep 2.5 and newer versions (a bug in old grep?). I confirm your result with grep 2.5.4, but all four of your greps do work when using grep 2.6.3 (Ubuntu 10.10).
Note:
GNU grep 2.5.4
echo "foo bar" | grep "\s"
(doesn't match)
whereas
GNU grep 2.6.3
echo "foo bar" | grep "\s"
foo bar
Probably less trouble (as \s
is not documented):
Both GNU greps
echo "foo bar" | grep "[[:space:]]"
foo bar
My advice is to avoid using \s
... use [ \t]*
or [[:space:]]
or something like it instead.
Cloning the objects before adding them. For example, instead of newList.addAll(oldList);
for(Person p : oldList) {
newList.add(p.clone());
}
Assuming clone
is correctly overriden inPerson
.
I stumbled across this question while hitting this road block myself. I ended up writing a piece of code real quick to handle this ReDim Preserve
on a new sized array (first or last dimension). Maybe it will help others who face the same issue.
So for the usage, lets say you have your array originally set as MyArray(3,5)
, and you want to make the dimensions (first too!) larger, lets just say to MyArray(10,20)
. You would be used to doing something like this right?
ReDim Preserve MyArray(10,20) '<-- Returns Error
But unfortunately that returns an error because you tried to change the size of the first dimension. So with my function, you would just do something like this instead:
MyArray = ReDimPreserve(MyArray,10,20)
Now the array is larger, and the data is preserved. Your ReDim Preserve
for a Multi-Dimension array is complete. :)
And last but not least, the miraculous function: ReDimPreserve()
'redim preserve both dimensions for a multidimension array *ONLY
Public Function ReDimPreserve(aArrayToPreserve,nNewFirstUBound,nNewLastUBound)
ReDimPreserve = False
'check if its in array first
If IsArray(aArrayToPreserve) Then
'create new array
ReDim aPreservedArray(nNewFirstUBound,nNewLastUBound)
'get old lBound/uBound
nOldFirstUBound = uBound(aArrayToPreserve,1)
nOldLastUBound = uBound(aArrayToPreserve,2)
'loop through first
For nFirst = lBound(aArrayToPreserve,1) to nNewFirstUBound
For nLast = lBound(aArrayToPreserve,2) to nNewLastUBound
'if its in range, then append to new array the same way
If nOldFirstUBound >= nFirst And nOldLastUBound >= nLast Then
aPreservedArray(nFirst,nLast) = aArrayToPreserve(nFirst,nLast)
End If
Next
Next
'return the array redimmed
If IsArray(aPreservedArray) Then ReDimPreserve = aPreservedArray
End If
End Function
I wrote this in like 20 minutes, so there's no guarantees. But if you would like to use or extend it, feel free. I would've thought that someone would've had some code like this up here already, well apparently not. So here ya go fellow gearheads.
DBeaver allows you connect to a DB2 database, run a query, and export the result-set to a CSV file that can be opened and fine-tuned in MS Excel or LibreOffice Calc.
To do this, all you have to do (in DBeaver) is right-click on the results grid (after running the query) and select "Export Resultset" from the context-menu.
This produces the dialog below, where you can ultimately save the result-set to a file as CSV, XML, or HTML:
This question is already answered and most of the answers here are correct but they don't solve one major issue with config changes. Have a look at this article https://androidresearch.wordpress.com/2013/05/10/dealing-with-asynctask-and-screen-orientation/ if you would like to write a async task in a better way.
The related_name
attribute specifies the name of the reverse relation from the User
model back to your model.
If you don't specify a related_name
, Django automatically creates one using the name of your model with the suffix _set
, for instance User.map_set.all()
.
If you do specify, e.g. related_name=maps
on the User
model, User.map_set
will still work, but the User.maps.
syntax is obviously a bit cleaner and less clunky; so for example, if you had a user object current_user
, you could use current_user.maps.all()
to get all instances of your Map
model that have a relation to current_user
.
The Django documentation has more details.
<input type="text" name="whatever" id="funkystyling" />
Here's the CSS for the image on the left:
#funkystyling {
background: white url(/path/to/icon.png) left no-repeat;
padding-left: 17px;
}
And here's the CSS for the image on the right:
#funkystyling {
background: white url(/path/to/icon.png) right no-repeat;
padding-right: 17px;
}
More like clean:
@Override
public void onTextChanged(CharSequence s, int start, int before, int count) {
String text = etyEditText.getText();
int textlength = etyEditText.getText().length();
if (text.endsWith("(") ||text.endsWith(")")|| text.endsWith(" ") || text.endsWith("-") )
return;
switch (textlength){
case 1:
etyEditText.setEditText(new StringBuilder(text).insert(text.length() - 1, "(").toString());
etyEditText.setSelection(etyEditText.getText().length());
break;
case 5:
etyEditText.setEditText(new StringBuilder(text).insert(text.length() - 1, ")").toString());
etyEditText.setSelection(etyEditText.getText().length());
break;
case 6:
etyEditText.setEditText(new StringBuilder(text).insert(text.length() - 1, " ").toString());
etyEditText.setSelection(etyEditText.getText().length());
break;
case 10:
etyEditText.setEditText(new StringBuilder(text).insert(text.length() - 1, "-").toString());
etyEditText.setSelection(etyEditText.getText().length());
break;
}
}
Use the below code for a setup session cookie, it will work until browser close. (make sure not close tab)
function setCookie(cname, cvalue, exdays) {
var d = new Date();
d.setTime(d.getTime() + (exdays*24*60*60*1000));
var expires = "expires="+ d.toUTCString();
document.cookie = cname + "=" + cvalue + ";" + expires + ";path=/";
}
function getCookie(cname) {
var name = cname + "=";
var decodedCookie = decodeURIComponent(document.cookie);
var ca = decodedCookie.split(';');
for(var i = 0; i <ca.length; i++) {
var c = ca[i];
while (c.charAt(0) == ' ') {
c = c.substring(1);
}
if (c.indexOf(name) == 0) {
return c.substring(name.length, c.length);
}
}
return false;
}
if(getCookie("KoiMilGaya")) {
//alert('found');
// Cookie found. Display any text like repeat user. // reload, other page visit, close tab and open again..
} else {
//alert('nothing');
// Display popup or anthing here. it shows on first visit only.
// this will load again when user closer browser and open again.
setCookie('KoiMilGaya','1');
}
You could use git-sizer
. In the --verbose
setting, the example output is (below). Look for the Total size of files
line.
$ git-sizer --verbose Processing blobs: 1652370 Processing trees: 3396199 Processing commits: 722647 Matching commits to trees: 722647 Processing annotated tags: 534 Processing references: 539 | Name | Value | Level of concern | | ---------------------------- | --------- | ------------------------------ | | Overall repository size | | | | * Commits | | | | * Count | 723 k | * | | * Total size | 525 MiB | ** | | * Trees | | | | * Count | 3.40 M | ** | | * Total size | 9.00 GiB | **** | | * Total tree entries | 264 M | ***** | | * Blobs | | | | * Count | 1.65 M | * | | * Total size | 55.8 GiB | ***** | | * Annotated tags | | | | * Count | 534 | | | * References | | | | * Count | 539 | | | | | | | Biggest objects | | | | * Commits | | | | * Maximum size [1] | 72.7 KiB | * | | * Maximum parents [2] | 66 | ****** | | * Trees | | | | * Maximum entries [3] | 1.68 k | * | | * Blobs | | | | * Maximum size [4] | 13.5 MiB | * | | | | | | History structure | | | | * Maximum history depth | 136 k | | | * Maximum tag depth [5] | 1 | | | | | | | Biggest checkouts | | | | * Number of directories [6] | 4.38 k | ** | | * Maximum path depth [7] | 13 | * | | * Maximum path length [8] | 134 B | * | | * Number of files [9] | 62.3 k | * | | * Total size of files [9] | 747 MiB | | | * Number of symlinks [10] | 40 | | | * Number of submodules | 0 | | [1] 91cc53b0c78596a73fa708cceb7313e7168bb146 [2] 2cde51fbd0f310c8a2c5f977e665c0ac3945b46d [3] 4f86eed5893207aca2c2da86b35b38f2e1ec1fc8 (refs/heads/master:arch/arm/boot/dts) [4] a02b6794337286bc12c907c33d5d75537c240bd0 (refs/heads/master:drivers/gpu/drm/amd/include/asic_reg/vega10/NBIO/nbio_6_1_sh_mask.h) [5] 5dc01c595e6c6ec9ccda4f6f69c131c0dd945f8c (refs/tags/v2.6.11) [6] 1459754b9d9acc2ffac8525bed6691e15913c6e2 (589b754df3f37ca0a1f96fccde7f91c59266f38a^{tree}) [7] 78a269635e76ed927e17d7883f2d90313570fdbc (dae09011115133666e47c35673c0564b0a702db7^{tree}) [8] ce5f2e31d3bdc1186041fdfd27a5ac96e728f2c5 (refs/heads/master^{tree}) [9] 532bdadc08402b7a72a4b45a2e02e5c710b7d626 (e9ef1fe312b533592e39cddc1327463c30b0ed8d^{tree}) [10] f29a5ea76884ac37e1197bef1941f62fda3f7b99 (f5308d1b83eba20e69df5e0926ba7257c8dd9074^{tree})
I had simple integer values in a Game project
Had less number of values in each array, also, needed that original array untouched
So, I did the below, it worked fine. (Code edited to paste here)
var sourceArray = [1, 2, 3];
var targetArray = [3, 2, 1];
if (sourceArray.length !== targetArray.length) {
// not equal
// did something
return false;
}
var newSortedSourceArray = sourceArray.slice().sort();
var newSortedTargetArray = targetArray.slice().sort();
if (newSortedSourceArray.toString() !== newSortedTargetArray.toString()) { // MAIN CHECK
// not equal
// did something
return false;
}
else {
// equal
// did something
// continued further below
}
// did some more work
return true;
Hope that helps.
In my case , my -Dloader.path="lib"
contains other jars that doesn't need.
for example,mvn dependency:copy-dependencies
lists 100 jar files.but my lib
directory contains 101 jar files.
my sample code
wv = (WebView) findViewById(R.id.mywebview);
wv.getLayoutParams().height = LayoutParams.MATCH_PARENT; // LayoutParams: android.view.ViewGroup.LayoutParams
// wv.getLayoutParams().height = LayoutParams.WRAP_CONTENT;
wv.requestLayout();//It is necesary to refresh the screen
Try this
padding:8px;
overflow: hidden;
zoom: 1;
text-align: left;
font-size: 13px;
font-family: "Trebuchet MS",Arial,Sans;
line-height: 24px;
color: black;
border-bottom: solid 1px #BBB;
background:url('images/checked.gif') white no-repeat;
This is full css.. Why you use padding:0 8px
, then override it with paddings? This is what you need...
For Group By Multiple Columns, Try this instead...
GroupBy(x=> new { x.Column1, x.Column2 }, (key, group) => new
{
Key1 = key.Column1,
Key2 = key.Column2,
Result = group.ToList()
});
Same way you can add Column3, Column4 etc.
A simpler solution would be to just add #navigation ul li~li { border-left: 1px solid #857D7A; }
In the main menu go with following steps
Window -> Show View -> Package Explorer.
Why don't you just write a simple utility method:
public final class DateUtils {
private DateUtils() {
}
public static Calendar calendarFor(int year, int month, int day) {
Calendar cal = Calendar.getInstance();
cal.set(Calendar.YEAR, year);
cal.set(Calendar.MONTH, month);
cal.set(Calendar.DAY_OF_MONTH, day);
return cal;
}
// ... maybe other utility methods
}
And then call that everywhere in the rest of your code:
Calendar cal = DateUtils.calendarFor(2010, Calendar.MAY, 21);
For ASP.NET Core You can use asp-route-* attribute:
<form asp-action="Login" asp-route-previous="@Model.ReturnUrl">
Other in details example: Imagine that you have a Vehicle Controller with actions
Index
Details
Edit
and you can edit any vehicle from Index or from Details, so if you clicked edit from index you must return to index after edit and if you clicked edit from details you must return to details after edit.
//In your viewmodel add the ReturnUrl Property
public class VehicleViewModel
{
..............
..............
public string ReturnUrl {get;set;}
}
Details.cshtml
<a asp-action="Edit" asp-route-previous="Details" asp-route-id="@Model.CarId">Edit</a>
Index.cshtml
<a asp-action="Edit" asp-route-previous="Index" asp-route-id="@item.CarId">Edit</a>
Edit.cshtml
<form asp-action="Edit" asp-route-previous="@Model.ReturnUrl" class="form-horizontal">
<div class="box-footer">
<a asp-action="@Model.ReturnUrl" class="btn btn-default">Back to List</a>
<button type="submit" value="Save" class="btn btn-warning pull-right">Save</button>
</div>
</form>
In your controller:
// GET: Vehicle/Edit/5
public ActionResult Edit(int id,string previous)
{
var model = this.UnitOfWork.CarsRepository.GetAllByCarId(id).FirstOrDefault();
var viewModel = this.Mapper.Map<VehicleViewModel>(model);//if you using automapper
//or by this code if you are not use automapper
var viewModel = new VehicleViewModel();
if (!string.IsNullOrWhiteSpace(previous)
viewModel.ReturnUrl = previous;
else
viewModel.ReturnUrl = "Index";
return View(viewModel);
}
[HttpPost]
public IActionResult Edit(VehicleViewModel model, string previous)
{
if (!string.IsNullOrWhiteSpace(previous))
model.ReturnUrl = previous;
else
model.ReturnUrl = "Index";
.............
.............
return RedirectToAction(model.ReturnUrl);
}
$headers = "MIME-Version: 1.0" . "\r\n";
$headers .= "Content-type: text/html; charset=iso-8859-1" . "\r\n";
$headers .= "From: [email protected]" . "\r\n" .
"Reply-To: [email protected]" . "\r\n" .
"X-Mailer: PHP/" . phpversion();
For a few reasons.
One of which is the need of a Reply-To
and,
The use of apostrophes instead of double-quotes. Those two things in my experience with forms, is usually what triggers a message ending up in the Spam box.
You could also try changing the $from
to:
$from = "[email protected]";
See these links I found on the subject https://stackoverflow.com/a/9988544/1415724 and https://stackoverflow.com/a/16717647/1415724 and https://stackoverflow.com/a/9899837/1415724
https://stackoverflow.com/a/5944155/1415724 and https://stackoverflow.com/a/6532320/1415724
Try using the SMTP server of your ISP.
Using this apparently worked for many: X-MSMail-Priority: High
http://www.webhostingtalk.com/showthread.php?t=931932
"My host helped me to enable DomainKeys and SPF Records on my domain and now when I send a test message to my Hotmail address it doesn't end up in Junk. It was actually really easy to enable these settings in cPanel under Email Authentication. I can't believe I never saw that before. It only works with sending through SMTP using phpmailer by the way. Any other way it still is marked as spam."
PHPmailer sending mail to spam in hotmail. how to fix http://pastebin.com/QdQUrfax
The most likely you already have a constraint with the name iduser
or idcategory
in your database. Just rename the constraints if so.
Constraints must be unique for the entire database, not just for the specific table you are creating/altering.
To find out where the constraints are currently in use you can use the following query:
SELECT `TABLE_SCHEMA`, `TABLE_NAME`
FROM `information_schema`.`KEY_COLUMN_USAGE`
WHERE `CONSTRAINT_NAME` IN ('iduser', 'idcategory');
This is an ancient question, but I thought I'd answer it since everyone here has some crazy solutions. It's actually very very simple...
An anchor tag works like this -
<a href="whatever you want"> EVERYTHING IN HERE TURNS INTO A LINK </a>
Sooo...
<a href="whatever you want"> <div id="thediv" /> </a>
Although I'm not sure if this is valid. If that's the reasoning behind spoken solutions, then I apologise...
Well I did not read correctly the man echo
page for this.
echo had 2 options that could do this if I added a 3rd escape character.
The 2 options are -n
and -e
.
-n
will not output the trailing newline. So that saves me from going to a new line each time I echo something.
-e
will allow me to interpret backslash escape symbols.
Guess what escape symbol I want to use for this: \r
. Yes, carriage return would send me back to the start and it will visually look like I am updating on the same line.
So the echo line would look like this:
echo -ne "Movie $movies - $dir ADDED!"\\r
I had to escape the escape symbol so Bash would not kill it. that is why you see 2 \
symbols in there.
As mentioned by William, printf
can also do similar (and even more extensive) tasks like this.
if you don't want to create a UDF in VBA or you can't, this could be an alternative.
=Cell("Filename",A1)
this will give you the full file name, and from this you could get the user name with something like this:
=Mid(A1,Find("\",A1,4)+1;Find("\";A1;Find("\";A1;4))-2)
This Formula runs only from a workbook saved earlier.
You must start from 4th position because of the first slash from the drive.
PHP > 5.3 use fgetcsv() or str_getcsv(). Couldn't be simpler.
Or create a function that creates an element including attributes from parameters
function elemCreate(elType){
var element = document.createElement(elType);
if (arguments.length>1){
var props = [].slice.call(arguments,1), key = props.shift();
while (key){
element.setAttribute(key,props.shift());
key = props.shift();
}
}
return element;
}
// usage
var img = elemCreate('img',
'width','100',
'height','100',
'src','http://example.com/something.jpeg');
FYI: height/width='100%'
would not work using attributes. For a height/width of 100% you need the elements style.height/style.width
Import HttpModule
in your app.module.ts file.
import { HttpModule } from '@angular/http';
import { YourHttpTestService } from '../services/httpTestService';
Also remember to declare HttpModule under imports like below:
imports: [
BrowserModule,
HttpModule
],
for foo in *.gz
do
tar xf "$foo"
rm "$foo"
done
You say your website is in http://localhost/mywebsite
, and let's say that your image is inside a subfolder named pictures/
:
Absolute path
If you use an absolute path, /
would point to the root of the site, not the root of the document: localhost
in your case. That's why you need to specify your document's folder in order to access the pictures folder:
"/mywebsite/pictures/picture.png"
And it would be the same as:
"http://localhost/mywebsite/pictures/picture.png"
Relative path
A relative path is always relative to the root of the document, so if your html is at the same level of the directory, you'd need to start the path directly with your picture's directory name:
"pictures/picture.png"
But there are other perks with relative paths:
dot-slash (./
)
Dot (.
) points to the same directory and the slash (/
) gives access to it:
So this:
"pictures/picture.png"
Would be the same as this:
"./pictures/picture.png"
Double-dot-slash (../
)
In this case, a double dot (..
) points to the upper directory and likewise, the slash (/
) gives you access to it. So if you wanted to access a picture that is on a directory one level above of the current directory your document is, your URL would look like this:
"../picture.png"
You can play around with them as much as you want, a little example would be this:
Let's say you're on directory A
, and you want to access directory X
.
- root
|- a
|- A
|- b
|- x
|- X
Your URL would look either:
Absolute path
"/x/X/picture.png"
Or:
Relative path
"./../x/X/picture.png"
If none of the above solutions work for any reason, like my case, try this:
<script type="text/javascript">
$(function()
{
$('[name="my_checkbox"]').change(function()
{
if ($(this).is(':checked')) {
// Do something...
alert('You can rock now...');
};
});
});
</script>
Try the following: string.replace(/[^0-9]/g, '');
This will delete all non-digit characters, leaving only digits in the string
function retnum(str) {
var num = str.replace(/[^0-9]/g, '');
return parseInt(num,10);
}
console.log('abca12bc45qw'.replace(/[^0-9]/g, ''));_x000D_
console.log('#box2'.replace(/[^0-9]/g, ''));
_x000D_
When using the new ruby, the image folder will go to asset folder on folder app
after placing your images in image folder, use
<%=image_tag("example_image.png", alt: "Example Image")%>
Most likely, you ran out of memory, so the Kernel killed your process.
Have you heard about OOM Killer?
Here's a log from a script that I developed for processing a huge set of data from CSV files:
Mar 12 18:20:38 server.com kernel: [63802.396693] Out of memory: Kill process 12216 (python3) score 915 or sacrifice child
Mar 12 18:20:38 server.com kernel: [63802.402542] Killed process 12216 (python3) total-vm:9695784kB, anon-rss:7623168kB, file-rss:4kB, shmem-rss:0kB
Mar 12 18:20:38 server.com kernel: [63803.002121] oom_reaper: reaped process 12216 (python3), now anon-rss:0kB, file-rss:0kB, shmem-rss:0kB
It was taken from /var/log/syslog
.
Basically:
PID 12216 elected as a victim (due to its use of +9Gb of total-vm), so oom_killer reaped it.
Here's a article about OOM behavior.
RelativeLayout layout = new RelativeLayout(this);
RelativeLayout.LayoutParams labelLayoutParams = new RelativeLayout.LayoutParams(
LayoutParams.FILL_PARENT, LayoutParams.FILL_PARENT);
layout.setLayoutParams(labelLayoutParams);
// If you want to add some controls in this Relative Layout
labelLayoutParams = new RelativeLayout.LayoutParams(
LayoutParams.WRAP_CONTENT, LayoutParams.WRAP_CONTENT);
labelLayoutParams.addRule(RelativeLayout.CENTER_IN_PARENT);
ImageView mImage = new ImageView(this);
mImage.setBackgroundResource(R.drawable.popupnew_bg);
layout.addView(mImage,labelLayoutParams);
setContentView(layout);
There is a good article on MDN that explains the theory behind those concepts: https://developer.mozilla.org/en-US/docs/Web/API/CSS_Object_Model/Determining_the_dimensions_of_elements
It also explains the important conceptual differences between boundingClientRect's width/height vs offsetWidth/offsetHeight.
Then, to prove the theory right or wrong, you need some tests. That's what I did here: https://github.com/lingtalfi/dimensions-cheatsheet
It's testing for chrome53, ff49, safari9, edge13 and ie11.
The results of the tests prove that the theory is generally right. For the tests, I created 3 divs containing 10 lorem ipsum paragraphs each. Some css was applied to them:
.div1{
width: 500px;
height: 300px;
padding: 10px;
border: 5px solid black;
overflow: auto;
}
.div2{
width: 500px;
height: 300px;
padding: 10px;
border: 5px solid black;
box-sizing: border-box;
overflow: auto;
}
.div3{
width: 500px;
height: 300px;
padding: 10px;
border: 5px solid black;
overflow: auto;
transform: scale(0.5);
}
And here are the results:
div1
bcr.height: 330 (chrome53, ff49, safari9, edge13, ie11)
clientWidth: 505 (chrome53, ff49, safari9)
clientHeight: 320 (chrome53, ff49, safari9, edge13, ie11)
scrollWidth: 505 (chrome53, safari9, ff49)
div2
clientHeight: 290 (chrome53, ff49, safari9, edge13, ie11)
scrollWidth: 475 (chrome53, safari9, ff49)
div3
clientHeight: 320 (chrome53, ff49, safari9, edge13, ie11)
scrollWidth: 505 (chrome53, safari9, ff49)
So, apart from the boundingClientRect's height value (299.9999694824219 instead of expected 300) in edge13 and ie11, the results confirm that the theory behind this works.
From there, here is my definition of those concepts:
Note: the default vertical scroll bar's width is 12px in edge13, 15px in chrome53, ff49 and safari9, and 17px in ie11 (done by measurements in photoshop from screenshots, and proven right by the results of the tests).
However, in some cases, maybe your app is not using the default vertical scroll bar's width.
So, given the definitions of those concepts, the vertical scroll bar's width should be equal to (in pseudo code):
layout dimension: offsetWidth - clientWidth - (borderLeftWidth + borderRightWidth)
rendering dimension: boundingClientRect.width - clientWidth - (borderLeftWidth + borderRightWidth)
Note, if you don't understand layout vs rendering please read the mdn article.
Also, if you have another browser (or if you want to see the results of the tests for yourself), you can see my test page here: http://codepen.io/lingtalfi/pen/BLdBdL
Just like you can password protect workbooks and worksheets, you can password protect a macro in Excel from being viewed (and executed).
Place a command button on your worksheet and add the following code lines:
First, create a simple macro that you want to protect.
Range("A1").Value = "This is secret code"
Next, click Tools, Then VBAProject Properties...
Click Tools, VBAProject Properties...
Enter a Password Twice
Click OK.
Save, close and reopen the Excel file. Try to view the code.
The following dialog box will appear:
Password Protected from being Viewed
You can still execute the code by clicking on the command button but you cannot view or edit the code anymore (unless you know the password). The password for the downloadable Excel file is "easy".
Dim password As Variant password = Application.InputBox("Enter Password", "Password Protected") Select Case password Case Is = False 'do nothing Case Is = "easy" Range("A1").Value = "This is secret code" Case Else MsgBox "Incorrect Password" End Select
Result when you click the command button on the sheet:
Password Protected from being Executed
Explanation: The macro uses the InputBox method of the Application object. If the users clicks Cancel, this method returns False and nothing happens (InputBox disappears). Only when the user knows the password ("easy" again), the secret code will be executed. If the entered password is incorrect, a MsgBox is displayed. Note that the user cannot take a look at the password in the Visual Basic Editor because the project is protected from being viewed
You can use the change command to replace the entire line, and the -i
flag to make the changes in-place. For example, using GNU sed:
sed -i '/TEXT_TO_BE_REPLACED/c\This line is removed by the admin.' /tmp/foo
You just need to find the right multiplier, which can be easily calculated from the hist
object.
myhist <- hist(mtcars$mpg)
multiplier <- myhist$counts / myhist$density
mydensity <- density(mtcars$mpg)
mydensity$y <- mydensity$y * multiplier[1]
plot(myhist)
lines(mydensity)
A more complete version, with a normal density and lines at each standard deviation away from the mean (including the mean):
myhist <- hist(mtcars$mpg)
multiplier <- myhist$counts / myhist$density
mydensity <- density(mtcars$mpg)
mydensity$y <- mydensity$y * multiplier[1]
plot(myhist)
lines(mydensity)
myx <- seq(min(mtcars$mpg), max(mtcars$mpg), length.out= 100)
mymean <- mean(mtcars$mpg)
mysd <- sd(mtcars$mpg)
normal <- dnorm(x = myx, mean = mymean, sd = mysd)
lines(myx, normal * multiplier[1], col = "blue", lwd = 2)
sd_x <- seq(mymean - 3 * mysd, mymean + 3 * mysd, by = mysd)
sd_y <- dnorm(x = sd_x, mean = mymean, sd = mysd) * multiplier[1]
segments(x0 = sd_x, y0= 0, x1 = sd_x, y1 = sd_y, col = "firebrick4", lwd = 2)
$ git remote remove <name>
ie.
$ git remote remove upstream
that should do the trick
NB.: Now instead of
runProguard false
you'll need to use
minifyEnabled false
I know this is late, but this command searches the /usr/ directory to find java for you
sudo find /usr/ -name *jdk
Results to
/usr/lib/jvm/java-6-openjdk
/usr/lib/jvm/java-1.6.0-openjdk
FYI, if you are on a Mac, currently JAVA_HOME is located at
/System/Library/Frameworks/JavaVM.framework/Home
Update:
You might need to edit your ~/.netrc file:
Original answer:
Why did you disable ssl? I think this might have to do with you not being able to push via https. I'd set it back and try to push again:
git config –global http.sslVerify true
In the C++ programming language V4, Stroustrup recommends using vectors or valarrays over builtin arrays. With valarrary's, when you create them, you can init them to a specific value like:
valarray <int>seven7s=(7777777,7);
To initialize an array 7 members long with "7777777".
This is a C++ way of implementing the answer using a C++ data structure instead of a "plain old C" array.
I switched to using the valarray as an attempt in my code to try to use C++'isms v. C'isms....
From a lambda, you can't get a reference to anything that isn't final. You need to declare a final wrapper from outside the lamda to hold your variable.
I've added the final 'reference' object as this wrapper.
private TimeZone extractCalendarTimeZoneComponent(Calendar cal,TimeZone calTz) {
final AtomicReference<TimeZone> reference = new AtomicReference<>();
try {
cal.getComponents().getComponents("VTIMEZONE").forEach(component->{
VTimeZone v = (VTimeZone) component;
v.getTimeZoneId();
if(reference.get()==null) {
reference.set(TimeZone.getTimeZone(v.getTimeZoneId().getValue()));
}
});
} catch (Exception e) {
//log.warn("Unable to determine ical timezone", e);
}
return reference.get();
}
Just store the index generated in a variable, and then access the array using this varaible:
int idx = new Random().nextInt(fruits.length);
String random = (fruits[idx]);
P.S. I usually don't like generating new Random
object per randoization - I prefer using a single Random
in the program - and re-use it. It allows me to easily reproduce a problematic sequence if I later find any bug in the program.
According to this approach, I will have some variable Random r
somewhere, and I will just use:
int idx = r.nextInt(fruits.length)
However, your approach is OK as well, but you might have hard time reproducing a specific sequence if you need to later on.
filtered_list = [list_a[i] for i in range(len(list_a)) if filter[i]]
Here's one I whipped together without example. It looks like we are all on the same page.
String.prototype.width = function(font) {
var f = font || '12px arial',
o = $('<div></div>')
.text(this)
.css({'position': 'absolute', 'float': 'left', 'white-space': 'nowrap', 'visibility': 'hidden', 'font': f})
.appendTo($('body')),
w = o.width();
o.remove();
return w;
}
Using it is simple: "a string".width()
**Added white-space: nowrap
so strings with width larger than the window width can be calculated.
concat.js is being included in the concat
task's source files public/js/*.js
. You could have a task that removes concat.js
(if the file exists) before concatenating again, pass an array to explicitly define which files you want to concatenate and their order, or change the structure of your project.
If doing the latter, you could put all your sources under ./src
and your built files under ./dest
src
+-- css
¦ +-- 1.css
¦ +-- 2.css
¦ +-- 3.css
+-- js
+-- 1.js
+-- 2.js
+-- 3.js
Then set up your concat task
concat: {
js: {
src: 'src/js/*.js',
dest: 'dest/js/concat.js'
},
css: {
src: 'src/css/*.css',
dest: 'dest/css/concat.css'
}
},
Your min task
min: {
js: {
src: 'dest/js/concat.js',
dest: 'dest/js/concat.min.js'
}
},
The build-in min task uses UglifyJS, so you need a replacement. I found grunt-css to be pretty good. After installing it, load it into your grunt file
grunt.loadNpmTasks('grunt-css');
And then set it up
cssmin: {
css:{
src: 'dest/css/concat.css',
dest: 'dest/css/concat.min.css'
}
}
Notice that the usage is similar to the built-in min.
Change your default
task to
grunt.registerTask('default', 'concat min cssmin');
Now, running grunt
will produce the results you want.
dest
+-- css
¦ +-- concat.css
¦ +-- concat.min.css
+-- js
+-- concat.js
+-- concat.min.js
On linux we can do like this to remove go completely:
rm -rf "/usr/local/.go/"
rm -rf "/usr/local/go/"
These two command remove go and hidden .go files. Now we also have to update entries in shell profile.
Open your basic file. Mostly I open like this sudo gedit ~/.bashrc
and remove all go mentions.
You can also do by sed command in ubuntu
sed -i '/# GoLang/d' .bashrc
sed -i '/export GOROOT/d' .bashrc
sed -i '/:$GOROOT/d' .bashrc
sed -i '/export GOPATH/d' .bashrc
sed -i '/:$GOPATH/d' .bashrc
It will remove Golang from everywhere. Also run this after running these command
source ~/.bash_profile
Tested on linux 18.04 also. That's All.
Lately, BitBucket needs you to generate an App Password:
Settings/Access Management/App Passwords.
Spring Boot will automatically find and load application.properties and application.yaml files from the following locations when your application starts:
The list is ordered by precedence (with values from lower items overriding earlier ones).
More info you can find here https://docs.spring.io/spring-boot/docs/current/reference/html/spring-boot-features.html#boot-features-external-config-files
It is possible. Have a look at JSch.addIdentity(...)
This allows you to use key either as byte array or to read it from file.
import com.jcraft.jsch.Channel;
import com.jcraft.jsch.ChannelSftp;
import com.jcraft.jsch.JSch;
import com.jcraft.jsch.Session;
public class UserAuthPubKey {
public static void main(String[] arg) {
try {
JSch jsch = new JSch();
String user = "tjill";
String host = "192.18.0.246";
int port = 10022;
String privateKey = ".ssh/id_rsa";
jsch.addIdentity(privateKey);
System.out.println("identity added ");
Session session = jsch.getSession(user, host, port);
System.out.println("session created.");
// disabling StrictHostKeyChecking may help to make connection but makes it insecure
// see http://stackoverflow.com/questions/30178936/jsch-sftp-security-with-session-setconfigstricthostkeychecking-no
//
// java.util.Properties config = new java.util.Properties();
// config.put("StrictHostKeyChecking", "no");
// session.setConfig(config);
session.connect();
System.out.println("session connected.....");
Channel channel = session.openChannel("sftp");
channel.setInputStream(System.in);
channel.setOutputStream(System.out);
channel.connect();
System.out.println("shell channel connected....");
ChannelSftp c = (ChannelSftp) channel;
String fileName = "test.txt";
c.put(fileName, "./in/");
c.exit();
System.out.println("done");
} catch (Exception e) {
System.err.println(e);
}
}
}
From http://en.wikipedia.org/wiki/Printf_format_string
use 0 instead of spaces to pad a field when the width option is specified. For example, printf("%2d", 3)
results in " 3", while printf("%02d", 3)
results in "03".
You can use any attribute as selector with [attribute_name=value]
.
$('td[name=tcol1]').hide();
There is another time when using getBean makes sense. If you're reconfiguring a system that already exists, where the dependencies are not explicitly called out in spring context files. You can start the process by putting in calls to getBean, so that you don't have to wire it all up at once. This way you can slowly build up your spring configuration putting each piece in place over time and getting the bits lined up properly. The calls to getBean will eventually be replaced, but as you understand the structure of the code, or lack there of, you can start the process of wiring more and more beans and using fewer and fewer calls to getBean.
bradleygriffith
's answer was great. I took step 10 and made a screenshot for simplification. This is a screenshot in Xcode 6.
unwind segue
in the sidebar:[self performSegueWithIdentifier:@"unwindIdentifier" sender:self];
1:n means 'one-to-many'; you have two tables, and each row of table A may be referenced by any number of rows in table B, but each row in table B can only reference one row in table A (or none at all).
n:m (or n:n) means 'many-to-many'; each row in table A can reference many rows in table B, and each row in table B can reference many rows in table A.
A 1:n relationship is typically modelled using a simple foreign key - one column in table A references a similar column in table B, typically the primary key. Since the primary key uniquely identifies exactly one row, this row can be referenced by many rows in table A, but each row in table A can only reference one row in table B.
A n:m relationship cannot be done this way; a common solution is to use a link table that contains two foreign key columns, one for each table it links. For each reference between table A and table B, one row is inserted into the link table, containing the IDs of the corresponding rows.
Implement the routerOnActivate
in your @Component
and return your promise:
https://angular.io/docs/ts/latest/api/router/OnActivate-interface.html
EDIT: This explicitly does NOT work, although the current documentation can be a little hard to interpret on this topic. See Brandon's first comment here for more information: https://github.com/angular/angular/issues/6611
EDIT: The related information on the otherwise-usually-accurate Auth0 site is not correct: https://auth0.com/blog/2016/01/25/angular-2-series-part-4-component-router-in-depth/
EDIT: The angular team is planning a @Resolve decorator for this purpose.
For Jetbrains IDE Users who migrated to VSCode , no problem.
Install:
1) JetBrains IDE Keymap: Extension
2) vscode-intellij-idea-keybindings Extension (Preferred)
Use this Intellij Darcula Theme
: Extension
The keymap has covered most of keyboard shortcuts of VS Code, and makes VS Code more 'JetBrains IDE like'.
Above extensions imports keybindings from JetBrains to VS Code. After installing the extension and restarting VS Code you can use VS Code just like IntelliJ IDEA, Webstorm, PyCharm, etc.
throw new RuntimeException(msg);
You need the new
in there. It's creating an instance and throwing it, not calling a method.
You can use this -
function sleep(milliseconds) {
var start = new Date().getTime();
for (var i = 0; i < 1e7; i++) {
if ((new Date().getTime() - start) > milliseconds){
break;
}
}
}
fsutil file createnew <filename> <length>
where <length>
is in bytes.
For example, to create a 1MB (Windows MB or MiB) file named 'test', this code can be used.
fsutil file createnew test 1048576
fsutil
requires administrative privileges though.
One important distinction between the two (which is visible in the Reflected code) is that SelectedValue will return an empty string if a nothing is selected, whereas SelectedItem.Value will throw a NullReference exception.
I'm sure Scott's solution worked at one point,
But it's a good argument for not using reflection to peek at private apis. It's broken now.
I was able to set out parameters using a delegate
delegate void MockOutDelegate(string s, out int value);
public void SomeMethod()
{
....
int value;
myMock.Setup(x => x.TryDoSomething(It.IsAny<string>(), out value))
.Callback(new MockOutDelegate((string s, out int output) => output = userId))
.Returns(true);
}
$arr1 = array(
array('id'=>1,'name'=>'aA','cat'=>'cc'),
array('id'=>2,'name'=>'aa','cat'=>'dd'),
array('id'=>3,'name'=>'bb','cat'=>'cc'),
array('id'=>4,'name'=>'bb','cat'=>'dd')
);
$result1 = array_msort($arr1, array('name'=>SORT_DESC);
$result2 = array_msort($arr1, array('cat'=>SORT_ASC);
$result3 = array_msort($arr1, array('name'=>SORT_DESC, 'cat'=>SORT_ASC));
function array_msort($array, $cols)
{
$colarr = array();
foreach ($cols as $col => $order) {
$colarr[$col] = array();
foreach ($array as $k => $row) { $colarr[$col]['_'.$k] = strtolower($row[$col]); }
}
$eval = 'array_multisort(';
foreach ($cols as $col => $order) {
$eval .= '$colarr[\''.$col.'\'],'.$order.',';
}
$eval = substr($eval,0,-1).');';
eval($eval);
$ret = array();
foreach ($colarr as $col => $arr) {
foreach ($arr as $k => $v) {
$k = substr($k,1);
if (!isset($ret[$k])) $ret[$k] = $array[$k];
$ret[$k][$col] = $array[$k][$col];
}
}
return $ret;
}
Here's my answer - where the 'pop' is inefficient. Seems that all algorithms that come immediately to mind have N complexity, where N is the size of the list: whether you choose to do work on the 'pop' or do work on the 'push'
The algorithm where lists are traded back and fourth may be better, as a size calculation is not needed, although you still need to loop and compare with empty.
you can prove this algorithm cannot be written faster than N by noting that the information about the last element in a queue is only available through knowing the size of the queue, and that you must destroy data to get to that element, hence the 2nd queue.
The only way to make this faster is to not to use queues in the first place.
from data_structures import queue
class stack(object):
def __init__(self):
q1= queue
q2= queue #only contains one item at most. a temp var. (bad?)
def push(self, item):
q1.enque(item) #just stick it in the first queue.
#Pop is inefficient
def pop(self):
#'spin' the queues until q1 is ready to pop the right value.
for N 0 to self.size-1
q2.enqueue(q1.dequeue)
q1.enqueue(q2.dequeue)
return q1.dequeue()
@property
def size(self):
return q1.size + q2.size
@property
def isempty(self):
if self.size > 0:
return True
else
return False
instead of .85, if we add 1.0. You will get exact answer.
data=canvas.toDataURL('image/jpeg', 1.0);
You can get clear and bright image. Please check
The answers above point out how the block size can impact performance and suggest a common heuristic for its choice based on occupancy maximization. Without wanting to provide the criterion to choose the block size, it would be worth mentioning that CUDA 6.5 (now in Release Candidate version) includes several new runtime functions to aid in occupancy calculations and launch configuration, see
CUDA Pro Tip: Occupancy API Simplifies Launch Configuration
One of the useful functions is cudaOccupancyMaxPotentialBlockSize
which heuristically calculates a block size that achieves the maximum occupancy. The values provided by that function could be then used as the starting point of a manual optimization of the launch parameters. Below is a little example.
#include <stdio.h>
/************************/
/* TEST KERNEL FUNCTION */
/************************/
__global__ void MyKernel(int *a, int *b, int *c, int N)
{
int idx = threadIdx.x + blockIdx.x * blockDim.x;
if (idx < N) { c[idx] = a[idx] + b[idx]; }
}
/********/
/* MAIN */
/********/
void main()
{
const int N = 1000000;
int blockSize; // The launch configurator returned block size
int minGridSize; // The minimum grid size needed to achieve the maximum occupancy for a full device launch
int gridSize; // The actual grid size needed, based on input size
int* h_vec1 = (int*) malloc(N*sizeof(int));
int* h_vec2 = (int*) malloc(N*sizeof(int));
int* h_vec3 = (int*) malloc(N*sizeof(int));
int* h_vec4 = (int*) malloc(N*sizeof(int));
int* d_vec1; cudaMalloc((void**)&d_vec1, N*sizeof(int));
int* d_vec2; cudaMalloc((void**)&d_vec2, N*sizeof(int));
int* d_vec3; cudaMalloc((void**)&d_vec3, N*sizeof(int));
for (int i=0; i<N; i++) {
h_vec1[i] = 10;
h_vec2[i] = 20;
h_vec4[i] = h_vec1[i] + h_vec2[i];
}
cudaMemcpy(d_vec1, h_vec1, N*sizeof(int), cudaMemcpyHostToDevice);
cudaMemcpy(d_vec2, h_vec2, N*sizeof(int), cudaMemcpyHostToDevice);
float time;
cudaEvent_t start, stop;
cudaEventCreate(&start);
cudaEventCreate(&stop);
cudaEventRecord(start, 0);
cudaOccupancyMaxPotentialBlockSize(&minGridSize, &blockSize, MyKernel, 0, N);
// Round up according to array size
gridSize = (N + blockSize - 1) / blockSize;
cudaEventRecord(stop, 0);
cudaEventSynchronize(stop);
cudaEventElapsedTime(&time, start, stop);
printf("Occupancy calculator elapsed time: %3.3f ms \n", time);
cudaEventRecord(start, 0);
MyKernel<<<gridSize, blockSize>>>(d_vec1, d_vec2, d_vec3, N);
cudaEventRecord(stop, 0);
cudaEventSynchronize(stop);
cudaEventElapsedTime(&time, start, stop);
printf("Kernel elapsed time: %3.3f ms \n", time);
printf("Blocksize %i\n", blockSize);
cudaMemcpy(h_vec3, d_vec3, N*sizeof(int), cudaMemcpyDeviceToHost);
for (int i=0; i<N; i++) {
if (h_vec3[i] != h_vec4[i]) { printf("Error at i = %i! Host = %i; Device = %i\n", i, h_vec4[i], h_vec3[i]); return; };
}
printf("Test passed\n");
}
EDIT
The cudaOccupancyMaxPotentialBlockSize
is defined in the cuda_runtime.h
file and is defined as follows:
template<class T>
__inline__ __host__ CUDART_DEVICE cudaError_t cudaOccupancyMaxPotentialBlockSize(
int *minGridSize,
int *blockSize,
T func,
size_t dynamicSMemSize = 0,
int blockSizeLimit = 0)
{
return cudaOccupancyMaxPotentialBlockSizeVariableSMem(minGridSize, blockSize, func, __cudaOccupancyB2DHelper(dynamicSMemSize), blockSizeLimit);
}
The meanings for the parameters is the following
minGridSize = Suggested min grid size to achieve a full machine launch.
blockSize = Suggested block size to achieve maximum occupancy.
func = Kernel function.
dynamicSMemSize = Size of dynamically allocated shared memory. Of course, it is known at runtime before any kernel launch. The size of the statically allocated shared memory is not needed as it is inferred by the properties of func.
blockSizeLimit = Maximum size for each block. In the case of 1D kernels, it can coincide with the number of input elements.
Note that, as of CUDA 6.5, one needs to compute one's own 2D/3D block dimensions from the 1D block size suggested by the API.
Note also that the CUDA driver API contains functionally equivalent APIs for occupancy calculation, so it is possible to use cuOccupancyMaxPotentialBlockSize
in driver API code in the same way shown for the runtime API in the example above.
substring().
http://dev.mysql.com/doc/refman/5.0/en/string-functions.html
You can add this line after setting your adapter
ViewCompat.setNestedScrollingEnabled(recyclerView, false);
Now your recyclerview will work with smooth scrolling
I figured it out. I was using a bad example I found in the past of how to map query string to the method parameters.
In case anyone else needs it, in order to have optional parameters in a query string such as:
you would use:
[Route("products/filter/{apc?}/{xpc?}/{sku?}")]
public IHttpActionResult Get(string apc = null, string xpc = null, int? sku = null)
{ ... }
It seems odd to have to define default values for the method parameters when these types already have a default.
I assume you are on Windows. Instead of trying to run your program by double clicking on it's icon or clicking a button in your IDE, open up a command prompt, cd to the directory your program is in, and run it by typing its name on the command line.
You can to this in Twig or the FormClass as shown in the examples above. But you might want to decide in the controller which class your form should get. Just keep in mind to not have much logic in the controller in general!
$form = $this->createForm(ContactForm::class, null, [
'attr' => [
'class' => 'my_contact_form'
]
]);
In TypeScript if we are declaring object then we'd use the following syntax:
[access modifier] variable name : { /* structure of object */ }
For example:
private Object:{ Key1: string, Key2: number }
%%writefile myfile.py
-a
to append). Another alias: %%file myfile.py
%run myfile.py
%load myfile.py
%lsmagic
%COMMAND-NAME?
%run?
Beside the cell magic commands, IPython notebook (now Jupyter notebook) is so cool that it allows you to use any unix command right from the cell (this is also equivalent to using the %%bash
cell magic command).
To run a unix command from the cell, just precede your command with !
mark. for example:
!python --version
see your python version!python myfile.py
run myfile.py and output results in the current cell, just like %run
(see the difference between !python
and %run
in the comments below).Also, see this nbviewer for further explanation with examples. Hope this helps.
I have found something that Actually works in both FireFox and IE, on Elizabeth Castro's site (thanks to the link on this site) - I have tried all other versions here, but could not make them work in both the browsers
<object classid="CLSID:6BF52A52-394A-11d3-B153-00C04F79FAA6"
id="player" width="320" height="260">
<param name="url"
value="http://www.sarahsnotecards.com/catalunyalive/fishstore.wmv" />
<param name="src"
value="http://www.sarahsnotecards.com/catalunyalive/fishstore.wmv" />
<param name="showcontrols" value="true" />
<param name="autostart" value="true" />
<!--[if !IE]>-->
<object type="video/x-ms-wmv"
data="http://www.sarahsnotecards.com/catalunyalive/fishstore.wmv"
width="320" height="260">
<param name="src"
value="http://www.sarahsnotecards.com/catalunyalive/fishstore.wmv" />
<param name="autostart" value="true" />
<param name="controller" value="true" />
</object>
<!--<![endif]-->
</object>
Check her site out: http://www.alistapart.com/articles/byebyeembed/ and the version with the classid in the initial object tag
You can use the following:
<style type="text/css">
table { page-break-inside:auto }
tr { page-break-inside:avoid; page-break-after:auto }
</style>
Refer the W3C's CSS Print Profile specification for details.
And also refer the Salesforce developer forums.
When your are trying to apply prod on string type of value like:
['-214' '-153' '-58' ..., '36' '191' '-37']
you will get the error.
Solution:
Append only integer value like [1,2,3]
, and you will get your expected output.
If the value is in string format before appending then, in the array you can convert the type into int
type and store it in a list
.
You can refer the below example to understand the working of re.match
and re.search
a = "123abc"
t = re.match("[a-z]+",a)
t = re.search("[a-z]+",a)
re.match
will return none
, but re.search
will return abc
.
[ |\t]+$
with an empty replace works. \s+($)
with a $1
replace also works.
At least in Visual Studio Code...
Write this is the activity you are in:
Intent intent = new Intent(CurrentActivity.this,NextActivity.class);
intent.putExtras("string_name","string_to_pass");
startActivity(intent);
In the NextActivity.java
Intent getIntent = getIntent();
//call a TextView object to set the string to
TextView text = (TextView)findViewById(R.id.textview_id);
text.setText(getIntent.getStringExtra("string_name"));
This works for me, you can try it.
Save image to bitmap variable
using (var ms = new MemoryStream())
{
Bitmap bmp = new Bitmap(imageToConvert);
bmp.Save(ms, format);
return ms.ToArray();
}
std::map::find
returns an iterator to the found element (or to the end()
if the element was not found). So long as the map
is not const, you can modify the element pointed to by the iterator:
std::map<char, int> m;
m.insert(std::make_pair('c', 0)); // c is for cookie
std::map<char, int>::iterator it = m.find('c');
if (it != m.end())
it->second = 42;
If somebody experiences problems with ExifInterface
on Android 4.4 (KitKat) for getting the orientation, it might be because of wrong path got from the URI. See a solution for propoer getPath
in Stack Overflow question Get real path from URI, Android KitKat new storage access framework
http://pchart.sourceforge.net/ looks very good and it's free.
The (un)safe way to do this - if you are ok with not using option explicit - is...
Not TypeName(myObj) = "Empty"
This also handles the case if the object has not been declared. This is useful if you want to just comment out a declaration to switch off some behaviour...
Dim myObj as Object
Not TypeName(myObj) = "Empty" '/ true, the object exists - TypeName is Object
'Dim myObj as Object
Not TypeName(myObj) = "Empty" '/ false, the object has not been declared
This works because VBA will auto-instantiate an undeclared variable as an Empty Variant type. It eliminates the need for an auxiliary Boolean to manage the behaviour.
I checked your XAML, it works fine - e.g. both labels have a gray foreground.
My guess is that you have some style which is affecting the way it looks...
Try moving your XAML to a brand-new window and see for yourself... Then, check if you have any themes or styles (in the Window.Resources
for instance) which might be affecting the labels...
If cleaning the solution didn't work and for anybody who see's this question and tried moving a project or renaming.
Open Package manager console and type "dotnet restore".
Add this toolbar.getBackground().setAlpha(0);
to inside OnCreate method. The add this:
android:elevation="0dp" android:background="@android:color/transparent
to your toolbar xml file.
You can use
window.clipboardData.getData('Text')
to get the content of user's clipboard in IE. However, in other browser you may need to use flash to get the content, since there is no standard interface to access the clipboard. May be you can have try this plugin Zero Clipboard
NOTE: Before trying this code, please find this line in the below code:
private static String DB_NAME ="YourDbName"; // Database name
DB_NAME here is the name of your database. It is assumed that you have a copy of the database in the assets folder, so for example, if your database name is ordersDB, then the value of DB_NAME will be ordersDB,
private static String DB_NAME ="ordersDB";
Keep the database in assets folder and then follow the below:
DataHelper class:
import java.io.File;
import java.io.FileOutputStream;
import java.io.IOException;
import java.io.InputStream;
import java.io.OutputStream;
import android.content.Context;
import android.database.SQLException;
import android.database.sqlite.SQLiteDatabase;
import android.database.sqlite.SQLiteOpenHelper;
import android.util.Log;
public class DataBaseHelper extends SQLiteOpenHelper {
private static String TAG = "DataBaseHelper"; // Tag just for the LogCat window
private static String DB_NAME ="YourDbName"; // Database name
private static int DB_VERSION = 1; // Database version
private final File DB_FILE;
private SQLiteDatabase mDataBase;
private final Context mContext;
public DataBaseHelper(Context context) {
super(context, DB_NAME, null, DB_VERSION);
DB_FILE = context.getDatabasePath(DB_NAME);
this.mContext = context;
}
public void createDataBase() throws IOException {
// If the database does not exist, copy it from the assets.
boolean mDataBaseExist = checkDataBase();
if(!mDataBaseExist) {
this.getReadableDatabase();
this.close();
try {
// Copy the database from assests
copyDataBase();
Log.e(TAG, "createDatabase database created");
} catch (IOException mIOException) {
throw new Error("ErrorCopyingDataBase");
}
}
}
// Check that the database file exists in databases folder
private boolean checkDataBase() {
return DB_FILE.exists();
}
// Copy the database from assets
private void copyDataBase() throws IOException {
InputStream mInput = mContext.getAssets().open(DB_NAME);
OutputStream mOutput = new FileOutputStream(DB_FILE);
byte[] mBuffer = new byte[1024];
int mLength;
while ((mLength = mInput.read(mBuffer)) > 0) {
mOutput.write(mBuffer, 0, mLength);
}
mOutput.flush();
mOutput.close();
mInput.close();
}
// Open the database, so we can query it
public boolean openDataBase() throws SQLException {
// Log.v("DB_PATH", DB_FILE.getAbsolutePath());
mDataBase = SQLiteDatabase.openDatabase(DB_FILE, null, SQLiteDatabase.CREATE_IF_NECESSARY);
// mDataBase = SQLiteDatabase.openDatabase(DB_FILE, null, SQLiteDatabase.NO_LOCALIZED_COLLATORS);
return mDataBase != null;
}
@Override
public synchronized void close() {
if(mDataBase != null) {
mDataBase.close();
}
super.close();
}
}
Write a DataAdapter class like:
import java.io.IOException;
import android.content.Context;
import android.database.Cursor;
import android.database.SQLException;
import android.database.sqlite.SQLiteDatabase;
import android.util.Log;
public class TestAdapter {
protected static final String TAG = "DataAdapter";
private final Context mContext;
private SQLiteDatabase mDb;
private DataBaseHelper mDbHelper;
public TestAdapter(Context context) {
this.mContext = context;
mDbHelper = new DataBaseHelper(mContext);
}
public TestAdapter createDatabase() throws SQLException {
try {
mDbHelper.createDataBase();
} catch (IOException mIOException) {
Log.e(TAG, mIOException.toString() + " UnableToCreateDatabase");
throw new Error("UnableToCreateDatabase");
}
return this;
}
public TestAdapter open() throws SQLException {
try {
mDbHelper.openDataBase();
mDbHelper.close();
mDb = mDbHelper.getReadableDatabase();
} catch (SQLException mSQLException) {
Log.e(TAG, "open >>"+ mSQLException.toString());
throw mSQLException;
}
return this;
}
public void close() {
mDbHelper.close();
}
public Cursor getTestData() {
try {
String sql ="SELECT * FROM myTable";
Cursor mCur = mDb.rawQuery(sql, null);
if (mCur != null) {
mCur.moveToNext();
}
return mCur;
} catch (SQLException mSQLException) {
Log.e(TAG, "getTestData >>"+ mSQLException.toString());
throw mSQLException;
}
}
}
Now you can use it like:
TestAdapter mDbHelper = new TestAdapter(urContext);
mDbHelper.createDatabase();
mDbHelper.open();
Cursor testdata = mDbHelper.getTestData();
mDbHelper.close();
EDIT: Thanks to JDx
For Android 4.1 (Jelly Bean), change:
DB_PATH = "/data/data/" + context.getPackageName() + "/databases/";
to:
DB_PATH = context.getApplicationInfo().dataDir + "/databases/";
in the DataHelper class, this code will work on Jelly Bean 4.2 multi-users.
EDIT: Instead of using hardcoded path, we can use
DB_PATH = context.getDatabasePath(DB_NAME).getAbsolutePath();
which will give us the full path to the database file and works on all Android versions
Should be in
Program Files>Microsoft SQL Server>MSSQL 1.0>MSSQL>BACKUP>
In my case it is
C:\Program Files\Microsoft SQL Server\MSSQL10.MSSQLSERVER\MSSQL\Backup
If you use the gui or T-SQL you can specify where you want it T-SQL example
BACKUP DATABASE [YourDB] TO DISK = N'SomePath\YourDB.bak'
WITH NOFORMAT, NOINIT, NAME = N'YourDB Full Database Backup',
SKIP, NOREWIND, NOUNLOAD, STATS = 10
GO
With T-SQL you can also get the location of the backup, see here Getting the physical device name and backup time for a SQL Server database
SELECT physical_device_name,
backup_start_date,
backup_finish_date,
backup_size/1024.0 AS BackupSizeKB
FROM msdb.dbo.backupset b
JOIN msdb.dbo.backupmediafamily m ON b.media_set_id = m.media_set_id
WHERE database_name = 'YourDB'
ORDER BY backup_finish_date DESC
This is now possible in modern browsers using localeCompare. By passing the numeric: true
option, it will smartly recognize numbers. You can do case-insensitive using sensitivity: 'base'
. Tested in Chrome, Firefox, and IE11.
Here's an example. It returns 1
, meaning 10 goes after 2:
'10'.localeCompare('2', undefined, {numeric: true, sensitivity: 'base'})
For performance when sorting large numbers of strings, the article says:
When comparing large numbers of strings, such as in sorting large arrays, it is better to create an Intl.Collator object and use the function provided by its compare property. Docs link
var collator = new Intl.Collator(undefined, {numeric: true, sensitivity: 'base'});_x000D_
var myArray = ['1_Document', '11_Document', '2_Document'];_x000D_
console.log(myArray.sort(collator.compare));
_x000D_
Apart from the question whether class decorators are the right solution to your problem:
In Python 2.6 and higher, there are class decorators with the @-syntax, so you can write:
@addID
class Foo:
pass
In older versions, you can do it another way:
class Foo:
pass
Foo = addID(Foo)
Note however that this works the same as for function decorators, and that the decorator should return the new (or modified original) class, which is not what you're doing in the example. The addID decorator would look like this:
def addID(original_class):
orig_init = original_class.__init__
# Make copy of original __init__, so we can call it without recursion
def __init__(self, id, *args, **kws):
self.__id = id
self.getId = getId
orig_init(self, *args, **kws) # Call the original __init__
original_class.__init__ = __init__ # Set the class' __init__ to the new one
return original_class
You could then use the appropriate syntax for your Python version as described above.
But I agree with others that inheritance is better suited if you want to override __init__
.
{
"files.useExperimentalFileWatcher" : true
}
in Code -> Preferences -> Settings
Tested with Visual Studio Code Version 1.26.1 on mac and win
yes, by the concept of pointer you can do it like this for an int variable:
int *a;
int b=0;
a=NULL; // or a=&b; for giving the value of b to a
if(a==NULL)
printf("NULL");
else
printf(*a);
it is very simple and straitforward. it worked for me in Arduino IDE.
Array.prototype.swap = function(a, b) {
var temp = this[a];
this[a] = this[b];
this[b] = temp;
};
Usage:
var myArray = [0,1,2,3,4...];
myArray.swap(4,1);
The form's "on submit" handlers are called before the form is submitted. I don't know if there is a handler to be called after the form is submited. In the traditional non-Javascript sense the form submission will reload the page.
You can use mysql_real_escape_string. mysql_real_escape_string()
does not escape %
and _
, so you should escape MySQL wildcards (%
and _
) separately.
Recursive function example:
def recursive(string, num):
print "#%s - %s" % (string, num)
recursive(string, num+1)
Run it with:
recursive("Hello world", 0)
string ImagePath = "";
HttpWebRequest request = (HttpWebRequest)WebRequest.Create(ImagePath);
string a = "";
try
{
HttpWebResponse response = (HttpWebResponse)request.GetResponse();
Stream receiveStream = response.GetResponseStream();
if (receiveStream.CanRead)
{ a = "OK"; }
}
catch { }
Here is one way of doing it.
If you HTML looks like this:
<div>Contact Details
<button type="button" class="edit_button">My Button</button>
</div>
apply the following CSS:
div {
border-bottom-width: 1px;
border-bottom-style: solid;
border-bottom-color: gray;
overflow: auto;
}
.edit_button {
float: right;
margin: 0 10px 10px 0; /* for demo only */
}
The trick is to apply overflow: auto
to the div
, which starts a new block formatting context. The result is that the floated button is enclosed within the block area defined by the div
tag.
You can then add margins to the button if needed to adjust your styling.
In the original HTML and CSS, the floated button was out of the content flow so the border of the div
would be positioned with respect to the in-flow text, which does not include any floated elements.
See demo at: http://jsfiddle.net/audetwebdesign/AGavv/
There is extensive paramiko API documentation you can find at: http://docs.paramiko.org/en/stable/index.html
I use the following method to execute commands on a password protected client:
import paramiko
nbytes = 4096
hostname = 'hostname'
port = 22
username = 'username'
password = 'password'
command = 'ls'
client = paramiko.Transport((hostname, port))
client.connect(username=username, password=password)
stdout_data = []
stderr_data = []
session = client.open_channel(kind='session')
session.exec_command(command)
while True:
if session.recv_ready():
stdout_data.append(session.recv(nbytes))
if session.recv_stderr_ready():
stderr_data.append(session.recv_stderr(nbytes))
if session.exit_status_ready():
break
print 'exit status: ', session.recv_exit_status()
print ''.join(stdout_data)
print ''.join(stderr_data)
session.close()
client.close()
There are 4 versions of the CRT link libraries present in vc\lib:
Look at the linker options, Project + Properties, Linker, Command Line. Note how these libraries are not mentioned here. The linker automatically figures out what /M switch was used by the compiler and which .lib should be linked through a #pragma comment directive. Kinda important, you'd get horrible link errors and hard to diagnose runtime errors if there was a mismatch between the /M option and the .lib you link with.
You'll see the error message you quoted when the linker is told both to link to msvcrt.lib and libcmt.lib. Which will happen if you link code that was compiled with /MT with code that was linked with /MD. There can be only one version of the CRT.
/NODEFAULTLIB tells the linker to ignore the #pragma comment directive that was generated from the /MT compiled code. This might work, although a slew of other linker errors is not uncommon. Things like errno, which is a extern int in the static CRT version but macro-ed to a function in the DLL version. Many others like that.
Well, fix this problem the Right Way, find the .obj or .lib file that you are linking that was compiled with the wrong /M option. If you have no clue then you could find it by grepping the .obj/.lib files for "/MT"
Btw: the Windows executables (like version.dll) have their own CRT version to get their job done. It is located in c:\windows\system32, you cannot reliably use it for your own programs, its CRT headers are not available anywhere. The CRT DLL used by your program has a different name (like msvcrt90.dll).
The solution for those who use composer is to use a volume pointing to the parent folder:
#docker-composer.yml
foo:
build: foo
volumes:
- ./:/src/:ro
But I'm pretty sure the can be done playing with volumes in Dockerfile.
Answer given by Jeru Luke is working only on Windows systems, if we try on another operating system (Ubuntu) then it runs without error but the image is saved on target location or path.
import cv2
img = cv2.imread('1.jpg', 1)
path = '/tmp'
cv2.imwrite(str(path) + 'waka.jpg',img)
cv2.waitKey(0)
I run above code but the image does not save the image on target path. Then I found that the way of adding path is wrong for the general purpose we using OS module to add the path.
Example:
import os
final_path = os.path.join(path_1,path_2,path_3......)
import cv2
import os
img = cv2.imread('1.jpg', 1)
path = 'D:/OpenCV/Scripts/Images'
cv2.imwrite(os.path.join(path , 'waka.jpg'),img)
cv2.waitKey(0)
that code works fine on both Windows and Ubuntu :)
Try:
openssl pkcs12 -in path.p12 -out newfile.crt.pem -clcerts -nokeys
openssl pkcs12 -in path.p12 -out newfile.key.pem -nocerts -nodes
After that you have:
To put the certificate and key in the same file without a password, use the following, as an empty password will cause the key to not be exported:
openssl pkcs12 -in path.p12 -out newfile.pem -nodes
Or, if you want to provide a password for the private key, omit -nodes
and input a password:
openssl pkcs12 -in path.p12 -out newfile.pem
If you need to input the PKCS#12 password directly from the command line (e.g. a script), just add -passin pass:${PASSWORD}
:
openssl pkcs12 -in path.p12 -out newfile.crt.pem -clcerts -nokeys -passin 'pass:P@s5w0rD'
I'm not sure if this is going to help, but even i faced the exact same problem very recently with oozie-4.2.0 version. After reading through the above answers i have just added the maven option through command line and it worked for me. So, just sharing here.
I'm using java 1.8.0_77, haven't tried with java 1.7
bin/mkdistro.sh -DskipTests -Dmaven.javadoc.opts='-Xdoclint:-html'
string[] strArray = { "text1", "text2", "text3", "text4" };
string value = "text3";
if(Array.contains(strArray , value))
{
// Do something if the value is available in Array.
}
Can use this add condition.
<el-form-item :label="Amount ($)" style="width:100%" >
<template slot-scope="scoped">
<el-input-number v-model="listQuery.refAmount" :disabled="(rowData.status !== 1 ) === true" ></el-input-number>
</template>
</el-form-item>
I don't like messing with the DataSource personally so after discussing the issue with an IT friend I was able to discover this way which is simple and doesn't effect the DataSource. Hope this helps!
foreach (DataGridViewRow row in dataGridView1.Rows)
{
foreach (DataGridViewCell cell in row.Cells)
{
cell.Value = "";
}
}
If you need to set the user header string in the curl request, you can use the -H
option to set user agent like:
curl -H "user-agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/88.0.4324.182 Safari/537.36" http://stackoverflow.com/questions/28760694/how-to-use-curl-to-get-a-get-request-exactly-same-as-using-chrome
Updated user-agent form newest Chrome at 02-22-2021
Using a proxy tool like Charles Proxy really helps make short work of something like what you are asking. Here is what I do, using this SO page as an example (as of July 2015 using Charles version 3.10):
You now have a cURL request you can run in a terminal that will mirror the request your browser made. Here is what my request to this page looked like (with the cookie header removed):
curl -H "Host: stackoverflow.com" -H "Cache-Control: max-age=0" -H "Accept: text/html,application/xhtml+xml,application/xml;q=0.9,image/webp,*/*;q=0.8" -H "User-Agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_10_3) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/44.0.2403.89 Safari/537.36" -H "HTTPS: 1" -H "DNT: 1" -H "Referer: https://www.google.com/" -H "Accept-Language: en-US,en;q=0.8,en-GB;q=0.6,es;q=0.4" -H "If-Modified-Since: Thu, 23 Jul 2015 20:31:28 GMT" --compressed http://stackoverflow.com/questions/28760694/how-to-use-curl-to-get-a-get-request-exactly-same-as-using-chrome
Just wanted to point out that the accepted answer has a couple of limitations (which I discovered when I tried to use it)
It is thus not suitable (without adaptation) for use in a repeated-call setting (eg a ComponentResizedListener
, or a custom/modified LayoutManager
).
The listed code effectively assumes a starting size of 10 pt but refers to the current font size and is thus suitable for calling once (to set the size of the font when the label is created). It would work better in a multi-call environment if it did int newFontSize = (int) (widthRatio * 10);
rather than int newFontSize = (int)(labelFont.getSize() * widthRatio);
Because it uses new Font(labelFont.getName(), Font.PLAIN, fontSizeToUse))
to generate the new font, there is no support for Bolding, Italic or Color etc from the original font in the updated font. It would be more flexible if it made use of labelFont.deriveFont
instead.
The solution does not provide support for HTML label Text. (I know that was probably not ever an intended outcome of the answer code offered, but as I had an HTML-text JLabel
on my JPanel
I formally discovered the limitation. The FontMetrics.stringWidth()
calculates the text length as inclusive of the width of the html tags - ie as simply more text)
I recommend looking at the answer to this SO question where trashgod's answer points to a number of different answers (including this one) to an almost identical question. On that page I will provide an additional answer that speeds up one of the other answers by a factor of 30-100.
Had a quick snoop around for this one, but this looks like it should work. I haven't tested it yet though.
File f = new File("."); // current directory
File[] files = f.listFiles();
for (File file : files) {
if (file.isDirectory()) {
System.out.print("directory:");
} else {
System.out.print(" file:");
}
System.out.println(file.getCanonicalPath());
}
I know this question is 8 year old, however there was and is a better solution for this purpose. It's always been there, and still is: User32.dll!MessageBoxTimeout.
This is an undocumented function used by Microsoft Windows, and it does exactly what you want and even more. It supports different languages as well.
C# Import:
[DllImport("user32.dll", SetLastError = true)]
public static extern int MessageBoxTimeout(IntPtr hWnd, String lpText, String lpCaption, uint uType, Int16 wLanguageId, Int32 dwMilliseconds);
[DllImport("user32.dll", SetLastError = true)]
public static extern IntPtr GetForegroundWindow();
How to use it in C#:
uint uiFlags = /*MB_OK*/ 0x00000000 | /*MB_SETFOREGROUND*/ 0x00010000 | /*MB_SYSTEMMODAL*/ 0x00001000 | /*MB_ICONEXCLAMATION*/ 0x00000030;
NativeFunctions.MessageBoxTimeout(NativeFunctions.GetForegroundWindow(), $"Kitty", $"Hello", uiFlags, 0, 5000);
Work smarter, not harder.
Read : 101 LINQ Samples in that LINQ - Grouping Operators from Microsoft MSDN site
var x = from t in types group t by t.Type
into grp
select new { type = grp.key, count = grp.Count() };
forsingle object make use of stringbuilder and append it that will do or convert this in form of dictionary
// fordictionary
var x = (from t in types group t by t.Type
into grp
select new { type = grp.key, count = grp.Count() })
.ToDictionary( t => t.type, t => t.count);
//for stringbuilder not sure for this
var x = from t in types group t by t.Type
into grp
select new { type = grp.key, count = grp.Count() };
StringBuilder MyStringBuilder = new StringBuilder();
foreach (var res in x)
{
//: is separator between to object
MyStringBuilder.Append(result.Type +" , "+ result.Count + " : ");
}
Console.WriteLine(MyStringBuilder.ToString());
The character set is part of the locale, which is determined by the value of NLS_LANG
. As the documentation makes clear this is an operating system variable:
NLS_LANG
is set as an environment variable on UNIX platforms.NLS_LANG
is set in the registry on Windows platforms.
Now we can use ALTER SESSION
to change the values for a couple of locale elements, NLS_LANGUAGE and NLS_TERRITORY. But not, alas, the character set. The reason for this discrepancy is - I think - that the language and territory simply effect how Oracle interprets the stored data, e.g. whether to display a comma or a period when displaying a large number. Wheareas the character set is concerned with how the client application renders the displayed data. This information is picked up by the client application at startup time, and cannot be changed from within.
Given the following sample
myData <- data.frame(A=rep(1:2, 3), B=rep(1:3, 2), Pulse=20:25)
then
myData$A <-as.factor(myData$A)
myData$B <-as.factor(myData$B)
or you could select your columns altogether and wrap it up nicely:
# select columns
cols <- c("A", "B")
myData[,cols] <- data.frame(apply(myData[cols], 2, as.factor))
levels(myData$A) <- c("long", "short")
levels(myData$B) <- c("1kg", "2kg", "3kg")
To obtain
> myData
A B Pulse
1 long 1kg 20
2 short 2kg 21
3 long 3kg 22
4 short 1kg 23
5 long 2kg 24
6 short 3kg 25
If they're actually managed assemblies, you can use ILMerge. For native DLLs, you'll have a bit more work to do.
See also: How can a C++ windows dll be merged into a C# application exe?
try this code
output = dbsession.query(<model_class>).filter(<model_calss>.email.ilike('%' + < email > + '%'))
There are many differences between these two. But while working practically I have found that using $state.params
better. When you use more and more parameters this might be confusing to maintain in $stateParams
. where if we use multiple params which are not URL param $state
is very useful
.state('shopping-request', {
url: '/shopping-request/{cartId}',
data: {requireLogin: true},
params : {role: null},
views: {
'': {templateUrl: 'views/templates/main.tpl.html', controller: "ShoppingRequestCtrl"},
'body@shopping-request': {templateUrl: 'views/shops/shopping-request.html'},
'footer@shopping-request': {templateUrl: 'views/templates/footer.tpl.html'},
'header@shopping-request': {templateUrl: 'views/templates/header.tpl.html'}
}
})
I solved my problem by running below command
Set-ExecutionPolicy -ExecutionPolicy RemoteSigned -Scope CurrentUser
@JsonFormat only work for standard format supported by the jackson version that you are using.
Ex :- compatible with any of standard forms ("yyyy-MM-dd'T'HH:mm:ss.SSSZ", "yyyy-MM-dd'T'HH:mm:ss.SSS'Z'", "EEE, dd MMM yyyy HH:mm:ss zzz", "yyyy-MM-dd")) for jackson 2.8.6
PowerShell 2.0 replacement for [string]::IsNullOrWhiteSpace()
is string -notmatch "\S"
("\S" = any non-whitespace character)
> $null -notmatch "\S"
True
> " " -notmatch "\S"
True
> " x " -notmatch "\S"
False
Performance is very close:
> Measure-Command {1..1000000 |% {[string]::IsNullOrWhiteSpace(" ")}}
TotalMilliseconds : 3641.2089
> Measure-Command {1..1000000 |% {" " -notmatch "\S"}}
TotalMilliseconds : 4040.8453
Isn't it Simple as this,
txtbox1.BorderColor = System.Drawing.Color.Red;
If you are using jQuery you can easily check the type of any element.
function(elementID){
var type = $(elementId).attr('type');
if(type == "text") //inputBox
console.log("input text" + $(elementId).val().size());
}
similarly you can check the other types and take appropriate action.
That because your csv file is in invalid format, maybe the line break in your text file is not the \n or \r
and, using c/c++ to parse text is not a good idea. try awk:
$awk -F"," '{print "ID="$1"\tName="$2"\tAge="$3"\tGender="$4}' 1.csv
ID=0 Name=Filipe Age=19 Gender=M
ID=1 Name=Maria Age=20 Gender=F
ID=2 Name=Walter Age=60 Gender=M
You can use text classes:
.text-primary
.text-secondary
.text-success
.text-danger
.text-warning
.text-info
.text-light
.text-dark
.text-muted
.text-white
use text classes in any tag where needed.
<p class="text-primary">.text-primary</p>
<p class="text-secondary">.text-secondary</p>
<p class="text-success">.text-success</p>
<p class="text-danger">.text-danger</p>
<p class="text-warning">.text-warning</p>
<p class="text-info">.text-info</p>
<p class="text-light bg-dark">.text-light</p>
<p class="text-dark">.text-dark</p>
<p class="text-muted">.text-muted</p>
<p class="text-white bg-dark">.text-white</p>
You can add your own classes or modify above classes as your requirement.
The accepted answer is through but there is official explanation on this:
The WebApplicationContext is an extension of the plain ApplicationContext that has some extra features necessary for web applications. It differs from a normal ApplicationContext in that it is capable of resolving themes (see Using themes), and that it knows which Servlet it is associated with (by having a link to the ServletContext). The WebApplicationContext is bound in the ServletContext, and by using static methods on the RequestContextUtils class you can always look up the WebApplicationContext if you need access to it.
Cited from Spring web framework reference
By the way servlet and root context are both webApplicationContext:
Look for an open listener on port 1433 (the default port). If you get any response after creating a tcp connection there, the server's probably up.
Cast the operands to floats:
float ans = (float)a / (float)b;
I think the code is something like:
int rgb = red;
rgb = (rgb << 8) + green;
rgb = (rgb << 8) + blue;
Also, I believe you can get the individual values using:
int red = (rgb >> 16) & 0xFF;
int green = (rgb >> 8) & 0xFF;
int blue = rgb & 0xFF;
You don't want to make the function wait, because JavaScript is intended to be non-blocking. Rather return the promise at the end of the function, then the calling function can use the promise to get the server response.
var promise = query.find();
return promise;
//Or return query.find();
Based on what I see here, you have used lowercase fieldnames in your $data
array, and uppercase fieldnames in your database table.
Some versions of libc contain functions that deal with stack traces; you might be able to use them:
http://www.gnu.org/software/libc/manual/html_node/Backtraces.html
I remember using libunwind a long time ago to get stack traces, but it may not be supported on your platform.
This is my working solution:
select tabname as table_name
from syscat.tables
where tabschema = 'schema_name' -- put schema name here
and type = 'T'
order by tabname
The jQuery UI sortable
feature includes a serialize
method to do this. It's quite simple, really. Here's a quick example that sends the data to the specified URL as soon as an element has changes position.
$('#element').sortable({
axis: 'y',
update: function (event, ui) {
var data = $(this).sortable('serialize');
// POST to server using $.post or $.ajax
$.ajax({
data: data,
type: 'POST',
url: '/your/url/here'
});
}
});
What this does is that it creates an array of the elements using the elements id
. So, I usually do something like this:
<ul id="sortable">
<li id="item-1"></li>
<li id="item-2"></li>
...
</ul>
When you use the serialize
option, it will create a POST query string like this: item[]=1&item[]=2
etc. So if you make use - for example - your database IDs in the id
attribute, you can then simply iterate through the POSTed array and update the elements' positions accordingly.
For example, in PHP:
$i = 0;
foreach ($_POST['item'] as $value) {
// Execute statement:
// UPDATE [Table] SET [Position] = $i WHERE [EntityId] = $value
$i++;
}
You should use the grep
-q
flag for quiet output. See the man pages below:
man grep output :
General Output Control
-q, --quiet, --silent
Quiet; do not write anything to standard output. Exit immediately with zero status
if any match is found, even if an error was detected. Also see the -s or
--no-messages option. (-q is specified by POSIX.)
This KornShell (ksh) script demos the grep
quiet output and is a solution to your question.
grepUtil.ksh :
#!/bin/ksh
#Initialize Variables
file=poet.txt
var=""
dir=tempDir
dirPath="/"${dir}"/"
searchString="poet"
#Function to initialize variables
initialize(){
echo "Entering initialize"
echo "Exiting initialize"
}
#Function to create File with Input
#Params: 1}Directory 2}File 3}String to write to FileName
createFileWithInput(){
echo "Entering createFileWithInput"
orgDirectory=${PWD}
cd ${1}
> ${2}
print ${3} >> ${2}
cd ${orgDirectory}
echo "Exiting createFileWithInput"
}
#Function to create File with Input
#Params: 1}directoryName
createDir(){
echo "Entering createDir"
mkdir -p ${1}
echo "Exiting createDir"
}
#Params: 1}FileName
readLine(){
echo "Entering readLine"
file=${1}
while read line
do
#assign last line to var
var="$line"
done <"$file"
echo "Exiting readLine"
}
#Check if file exists
#Params: 1}File
doesFileExit(){
echo "Entering doesFileExit"
orgDirectory=${PWD}
cd ${PWD}${dirPath}
#echo ${PWD}
if [[ -e "${1}" ]]; then
echo "${1} exists"
else
echo "${1} does not exist"
fi
cd ${orgDirectory}
echo "Exiting doesFileExit"
}
#Check if file contains a string quietly
#Params: 1}Directory Path 2}File 3}String to seach for in File
doesFileContainStringQuiet(){
echo "Entering doesFileContainStringQuiet"
orgDirectory=${PWD}
cd ${PWD}${1}
#echo ${PWD}
grep -q ${3} ${2}
if [ ${?} -eq 0 ];then
echo "${3} found in ${2}"
else
echo "${3} not found in ${2}"
fi
cd ${orgDirectory}
echo "Exiting doesFileContainStringQuiet"
}
#Check if file contains a string with output
#Params: 1}Directory Path 2}File 3}String to seach for in File
doesFileContainString(){
echo "Entering doesFileContainString"
orgDirectory=${PWD}
cd ${PWD}${1}
#echo ${PWD}
grep ${3} ${2}
if [ ${?} -eq 0 ];then
echo "${3} found in ${2}"
else
echo "${3} not found in ${2}"
fi
cd ${orgDirectory}
echo "Exiting doesFileContainString"
}
#-----------
#---Main----
#-----------
echo "Starting: ${PWD}/${0} with Input Parameters: {1: ${1} {2: ${2} {3: ${3}"
#initialize #function call#
createDir ${dir} #function call#
createFileWithInput ${dir} ${file} ${searchString} #function call#
doesFileExit ${file} #function call#
if [ ${?} -eq 0 ];then
doesFileContainStringQuiet ${dirPath} ${file} ${searchString} #function call#
doesFileContainString ${dirPath} ${file} ${searchString} #function call#
fi
echo "Exiting: ${PWD}/${0}"
grepUtil.ksh Output :
user@foo /tmp
$ ksh grepUtil.ksh
Starting: /tmp/grepUtil.ksh with Input Parameters: {1: {2: {3:
Entering createDir
Exiting createDir
Entering createFileWithInput
Exiting createFileWithInput
Entering doesFileExit
poet.txt exists
Exiting doesFileExit
Entering doesFileContainStringQuiet
poet found in poet.txt
Exiting doesFileContainStringQuiet
Entering doesFileContainString
poet
poet found in poet.txt
Exiting doesFileContainString
Exiting: /tmp/grepUtil.ksh
np.random.uniform
fits your use case:
sampl = np.random.uniform(low=0.5, high=13.3, size=(50,))
Update Oct 2019:
While the syntax is still supported, it looks like the API changed with NumPy 1.17 to support greater control over the random number generator. Going forward the API has changed and you should look at https://docs.scipy.org/doc/numpy/reference/random/generated/numpy.random.Generator.uniform.html
The enhancement proposal is here: https://numpy.org/neps/nep-0019-rng-policy.html
This handles not only accents, but also "strokes" (as in ø etc.):
import unicodedata as ud
def rmdiacritics(char):
'''
Return the base character of char, by "removing" any
diacritics like accents or curls and strokes and the like.
'''
desc = ud.name(char)
cutoff = desc.find(' WITH ')
if cutoff != -1:
desc = desc[:cutoff]
try:
char = ud.lookup(desc)
except KeyError:
pass # removing "WITH ..." produced an invalid name
return char
This is the most elegant way I can think of (and it has been mentioned by alexis in a comment on this page), although I don't think it is very elegant indeed. In fact, it's more of a hack, as pointed out in comments, since Unicode names are – really just names, they give no guarantee to be consistent or anything.
There are still special letters that are not handled by this, such as turned and inverted letters, since their unicode name does not contain 'WITH'. It depends on what you want to do anyway. I sometimes needed accent stripping for achieving dictionary sort order.
Incorporated suggestions from the comments (handling lookup errors, Python-3 code).
Recent versions of bash
don't require call to the external program date
:
printf -v timestamp '%(%T)T'
%(...)T
uses the corresponding argument as a UNIX timestamp, and formats it according to the strftime
-style format between the parentheses. An argument of -1
corresponds to the current time, and when no ambiguity would occur can be omitted.
You can simple use type="url"
in your input and the check it with checkValidity()
in js
E.g:
your.html
<input id="foo" type="url">
your.js
$("#foo").on("keyup", function() {
if (this.checkValidity()) {
// The url is valid
} else {
// The url is invalid
}
});
Assert.assertTrue(Math.abs(actual-expected) == 0)
The guidelines we use, which seem to be fairly widely used and are backed up by the figures that we get from Google Analytics, are to design the site so that it will work on a screen that is 1024 pixels wide and 768 pixels high (1024x768 and 1280x800 are the most common resolutions we see, accounting for at least 70% of all traffic).
This is why you see many sites (this one included) which use a central column approx 1000 pixels wide and with the most important content in the top 500-600 pixels so it's above the fold when being viewed in screens this size.
Using a 1000 pixel wide layout works fairly well on screen sizes of up to about 1680 pixels in width (typically as high as you'll see on laptops, except the large 17" ones) but do start to look a bit silly on 1920 pixel wide ones (high end computers, typically workstations), however these very high resolutions don't account for a large percentage of traffic on the general internet - 2% or less (on the other hand, if you have a specialist audience like this site, the figure with high resolutions may be somewhat higher).
I couldn't ever find an answer that really satisfied the original question, so I put together a simple free service (PostMail) that allows you to make a standard HTTP POST request to send an email. When you sign up, it provides you with code that you can copy & paste into your website. In this case, you can simply use a form post:
HTML:
<form action="https://postmail.invotes.com/send"
method="post" id="email_form">
<input type="text" name="subject" placeholder="Subject" />
<textarea name="text" placeholder="Message"></textarea>
<!-- replace value with your access token -->
<input type="hidden" name="access_token" value="{your access token}" />
<input type="hidden" name="success_url"
value=".?message=Email+Successfully+Sent%21&isError=0" />
<input type="hidden" name="error_url"
value=".?message=Email+could+not+be+sent.&isError=1" />
<input id="submit_form" type="submit" value="Send" />
</form>
Again, in full disclosure, I created this service because I could not find a suitable answer.
I had the same symptom. For me it turned out that another thread was modifying the compared objects while the sorting was happening in a Stream. To resolve the issue, I mapped the objects to immutable temporary objects, collected the Stream to a temporary Collection and did the sorting on that.
This is the best and reliable way to do this. Here is a simple example and after that you can develop your custom logic:
//In .ts
public showUploadButton:boolean = false;
if(some logic)
{
//your logic
showUploadButton = true;
}
//In template
<button [class]="showUploadButton ? 'btn btn-default': 'btn btn-info'">Upload</button>
Just try this :
ArrayList<SomeClass> arrayList;
public SomeConstructor(List<SomeClass> listData) {
arrayList.addAll(listData);
}
I got the solution for setting the height of the iframe dynamically based on it's content. This works for the cross domain content. There are some steps to follow to achieve this.
Suppose you have added iframe in "abc.com/page" web page
<div>
<iframe id="IframeId" src="http://xyz.pqr/contactpage" style="width:100%;" onload="setIframeHeight(this)"></iframe>
</div>
Next you have to bind windows "message" event under web page "abc.com/page"
window.addEventListener('message', function (event) {
//Here We have to check content of the message event for safety purpose
//event data contains message sent from page added in iframe as shown in step 3
if (event.data.hasOwnProperty("FrameHeight")) {
//Set height of the Iframe
$("#IframeId").css("height", event.data.FrameHeight);
}
});
On iframe load you have to send message to iframe window content with "FrameHeight" message:
function setIframeHeight(ifrm) {
var height = ifrm.contentWindow.postMessage("FrameHeight", "*");
}
window.addEventListener('message', function (event) {
// Need to check for safety as we are going to process only our messages
// So Check whether event with data(which contains any object) contains our message here its "FrameHeight"
if (event.data == "FrameHeight") {
//event.source contains parent page window object
//which we are going to use to send message back to main page here "abc.com/page"
//parentSourceWindow = event.source;
//Calculate the maximum height of the page
var body = document.body, html = document.documentElement;
var height = Math.max(body.scrollHeight, body.offsetHeight,
html.clientHeight, html.scrollHeight, html.offsetHeight);
// Send height back to parent page "abc.com/page"
event.source.postMessage({ "FrameHeight": height }, "*");
}
});
JPA will use all properties of the class, unless you specifically mark them with @Transient
:
@Transient
private String agencyName;
The @Column
annotation is purely optional, and is there to let you override the auto-generated column name. Furthermore, the length
attribute of @Column
is only used when auto-generating table definitions, it has no effect on the runtime.
The solution compliant with the v4 of the framework is to set the proper breakpoint. Rather than using .table-responsive, you should be able to use .table-responsive-sm (to be just responsive on small devices)
You can use any of the available endpoints: table-responsive{-sm|-md|-lg|-xl}
Just add header('Content-type: application/xml');
before your echo of the XML response and you will see an XML page.
For readability, I restructured the query... starting with the apparent top-most level being Table1, which then ties to Table3, and then table3 ties to table2. Much easier to follow if you follow the chain of relationships.
Now, to answer your question. You are getting a large count as the result of a Cartesian product. For each record in Table1 that matches in Table3 you will have X * Y. Then, for each match between table3 and Table2 will have the same impact... Y * Z... So your result for just one possible ID in table 1 can have X * Y * Z records.
This is based on not knowing how the normalization or content is for your tables... if the key is a PRIMARY key or not..
Ex:
Table 1
DiffKey Other Val
1 X
1 Y
1 Z
Table 3
DiffKey Key Key2 Tbl3 Other
1 2 6 V
1 2 6 X
1 2 6 Y
1 2 6 Z
Table 2
Key Key2 Other Val
2 6 a
2 6 b
2 6 c
2 6 d
2 6 e
So, Table 1 joining to Table 3 will result (in this scenario) with 12 records (each in 1 joined with each in 3). Then, all that again times each matched record in table 2 (5 records)... total of 60 ( 3 tbl1 * 4 tbl3 * 5 tbl2 )count would be returned.
So, now, take that and expand based on your 1000's of records and you see how a messed-up structure could choke a cow (so-to-speak) and kill performance.
SELECT
COUNT(*)
FROM
Table1
INNER JOIN Table3
ON Table1.DifferentKey = Table3.DifferentKey
INNER JOIN Table2
ON Table3.Key =Table2.Key
AND Table3.Key2 = Table2.Key2
That's no problem.
@Html.Partial("../Controller/View", model)
or
@Html.Partial("~/Views/Controller/View.cshtml", model)
Should do the trick.
If you want to pass through the (other) controller, you can use:
@Html.Action("action", "controller", parameters)
or any of the other overloads
Not to insult the OP, but for those who come to this question and are still new to Linux—you might have to install Valgrind on your system.
sudo apt install valgrind # Ubuntu, Debian, etc.
sudo yum install valgrind # RHEL, CentOS, Fedora, etc.
Valgrind is readily usable for C/C++ code, but can even be used for other languages when configured properly (see this for Python).
To run Valgrind, pass the executable as an argument (along with any parameters to the program).
valgrind --leak-check=full \
--show-leak-kinds=all \
--track-origins=yes \
--verbose \
--log-file=valgrind-out.txt \
./executable exampleParam1
The flags are, in short:
--leak-check=full
: "each individual leak will be shown in detail"--show-leak-kinds=all
: Show all of "definite, indirect, possible, reachable" leak kinds in the "full" report.--track-origins=yes
: Favor useful output over speed. This tracks the origins of uninitialized values, which could be very useful for memory errors. Consider turning off if Valgrind is unacceptably slow.--verbose
: Can tell you about unusual behavior of your program. Repeat for more verbosity.--log-file
: Write to a file. Useful when output exceeds terminal space.Finally, you would like to see a Valgrind report that looks like this:
HEAP SUMMARY:
in use at exit: 0 bytes in 0 blocks
total heap usage: 636 allocs, 636 frees, 25,393 bytes allocated
All heap blocks were freed -- no leaks are possible
ERROR SUMMARY: 0 errors from 0 contexts (suppressed: 0 from 0)
ERROR SUMMARY: 0 errors from 0 contexts (suppressed: 0 from 0)
So, you have a memory leak, and Valgrind isn't saying anything meaningful. Perhaps, something like this:
5 bytes in 1 blocks are definitely lost in loss record 1 of 1
at 0x4C29BE3: malloc (vg_replace_malloc.c:299)
by 0x40053E: main (in /home/Peri461/Documents/executable)
Let's take a look at the C code I wrote too:
#include <stdlib.h>
int main() {
char* string = malloc(5 * sizeof(char)); //LEAK: not freed!
return 0;
}
Well, there were 5 bytes lost. How did it happen? The error report just says
main
and malloc
. In a larger program, that would be seriously troublesome to
hunt down. This is because of how the executable was compiled. We can
actually get line-by-line details on what went wrong. Recompile your program
with a debug flag (I'm using gcc
here):
gcc -o executable -std=c11 -Wall main.c # suppose it was this at first
gcc -o executable -std=c11 -Wall -ggdb3 main.c # add -ggdb3 to it
Now with this debug build, Valgrind points to the exact line of code allocating the memory that got leaked! (The wording is important: it might not be exactly where your leak is, but what got leaked. The trace helps you find where.)
5 bytes in 1 blocks are definitely lost in loss record 1 of 1
at 0x4C29BE3: malloc (vg_replace_malloc.c:299)
by 0x40053E: main (main.c:4)
IndexOutOfBoundsException
type problems.Sometimes your leaks/errors can be linked to one another, much like an IDE discovering that you haven't typed a closing bracket yet. Resolving one issue can resolve others, so look for one that looks a good culprit and apply some of these ideas:
gdb
perhaps), and look for precondition/postcondition errors. The idea is to trace your program's execution while focusing on the lifetime of allocated memory.60 bytes in 1 blocks are definitely lost in loss record 1 of 1
at 0x4C2BB78: realloc (vg_replace_malloc.c:785)
by 0x4005E4: resizeArray (main.c:12)
by 0x40062E: main (main.c:19)
And the code:
#include <stdlib.h>
#include <stdint.h>
struct _List {
int32_t* data;
int32_t length;
};
typedef struct _List List;
List* resizeArray(List* array) {
int32_t* dPtr = array->data;
dPtr = realloc(dPtr, 15 * sizeof(int32_t)); //doesn't update array->data
return array;
}
int main() {
List* array = calloc(1, sizeof(List));
array->data = calloc(10, sizeof(int32_t));
array = resizeArray(array);
free(array->data);
free(array);
return 0;
}
As a teaching assistant, I've seen this mistake often. The student makes use of
a local variable and forgets to update the original pointer. The error here is
noticing that realloc
can actually move the allocated memory somewhere else
and change the pointer's location. We then leave resizeArray
without telling
array->data
where the array was moved to.
1 errors in context 1 of 1:
Invalid write of size 1
at 0x4005CA: main (main.c:10)
Address 0x51f905a is 0 bytes after a block of size 26 alloc'd
at 0x4C2B975: calloc (vg_replace_malloc.c:711)
by 0x400593: main (main.c:5)
And the code:
#include <stdlib.h>
#include <stdint.h>
int main() {
char* alphabet = calloc(26, sizeof(char));
for(uint8_t i = 0; i < 26; i++) {
*(alphabet + i) = 'A' + i;
}
*(alphabet + 26) = '\0'; //null-terminate the string?
free(alphabet);
return 0;
}
Notice that Valgrind points us to the commented line of code above. The array
of size 26 is indexed [0,25] which is why *(alphabet + 26)
is an invalid
write—it's out of bounds. An invalid write is a common result of
off-by-one errors. Look at the left side of your assignment operation.
1 errors in context 1 of 1:
Invalid read of size 1
at 0x400602: main (main.c:9)
Address 0x51f90ba is 0 bytes after a block of size 26 alloc'd
at 0x4C29BE3: malloc (vg_replace_malloc.c:299)
by 0x4005E1: main (main.c:6)
And the code:
#include <stdlib.h>
#include <stdint.h>
int main() {
char* destination = calloc(27, sizeof(char));
char* source = malloc(26 * sizeof(char));
for(uint8_t i = 0; i < 27; i++) {
*(destination + i) = *(source + i); //Look at the last iteration.
}
free(destination);
free(source);
return 0;
}
Valgrind points us to the commented line above. Look at the last iteration here,
which is
*(destination + 26) = *(source + 26);
. However, *(source + 26)
is
out of bounds again, similarly to the invalid write. Invalid reads are also a
common result of off-by-one errors. Look at the right side of your assignment
operation.
How do I know when the leak is mine? How do I find my leak when I'm using someone else's code? I found a leak that isn't mine; should I do something? All are legitimate questions. First, 2 real-world examples that show 2 classes of common encounters.
#include <jansson.h>
#include <stdio.h>
int main() {
char* string = "{ \"key\": \"value\" }";
json_error_t error;
json_t* root = json_loads(string, 0, &error); //obtaining a pointer
json_t* value = json_object_get(root, "key"); //obtaining a pointer
printf("\"%s\" is the value field.\n", json_string_value(value)); //use value
json_decref(value); //Do I free this pointer?
json_decref(root); //What about this one? Does the order matter?
return 0;
}
This is a simple program: it reads a JSON string and parses it. In the making,
we use library calls to do the parsing for us. Jansson makes the necessary
allocations dynamically since JSON can contain nested structures of itself.
However, this doesn't mean we decref
or "free" the memory given to us from
every function. In fact, this code I wrote above throws both an "Invalid read"
and an "Invalid write". Those errors go away when you take out the decref
line
for value
.
Why? The variable value
is considered a "borrowed reference" in the Jansson
API. Jansson keeps track of its memory for you, and you simply have to decref
JSON structures independent of each other. The lesson here:
read the documentation. Really. It's sometimes hard to understand, but
they're telling you why these things happen. Instead, we have
existing questions about this memory error.
#include "SDL2/SDL.h"
int main(int argc, char* argv[]) {
if (SDL_Init(SDL_INIT_VIDEO|SDL_INIT_AUDIO) != 0) {
SDL_Log("Unable to initialize SDL: %s", SDL_GetError());
return 1;
}
SDL_Quit();
return 0;
}
What's wrong with this code? It consistently leaks ~212 KiB of memory for me. Take a moment to think about it. We turn SDL on and then off. Answer? There is nothing wrong.
That might sound bizarre at first. Truth be told, graphics are messy and sometimes you have to accept some leaks as being part of the standard library. The lesson here: you need not quell every memory leak. Sometimes you just need to suppress the leaks because they're known issues you can't do anything about. (This is not my permission to ignore your own leaks!)
How do I know when the leak is mine?
It is. (99% sure, anyway)
How do I find my leak when I'm using someone else's code?
Chances are someone else already found it. Try Google! If that fails, use the skills I gave you above. If that fails and you mostly see API calls and little of your own stack trace, see the next question.
I found a leak that isn't mine; should I do something?
Yes! Most APIs have ways to report bugs and issues. Use them! Help give back to the tools you're using in your project!
Thanks for staying with me this long. I hope you've learned something, as I tried to tend to the broad spectrum of people arriving at this answer. Some things I hope you've asked along the way: How does C's memory allocator work? What actually is a memory leak and a memory error? How are they different from segfaults? How does Valgrind work? If you had any of these, please do feed your curiousity:
You need 2 main things :
- Add @ServletComponentScan
to your Main Class
- you may add a package named filter inside it you create a Filter
Class that has the following :
@Component
@Order(Ordered.HIGHEST_PRECEDENCE)
public class RequestFilter implements Filter {
// whatever field you have
public void doFilter(ServletRequest req, ServletResponse res, FilterChain chain) {
HttpServletResponse response = (HttpServletResponse) res;
HttpServletRequest request = (HttpServletRequest) req;
// whatever implementation you want
try {
chain.doFilter(req, res);
} catch(Exception e) {
e.printStackTrace();
}
}
public void init(FilterConfig filterConfig) {}
public void destroy() {}
}
I prefer parsing results of dumpsys window windows
over dumpsys activity
adb shell dumpsys window windows | grep -E 'mCurrentFocus|mFocusedApp'
Keyguard or Recent tasks list used to not show up as Activities but you were able to see them with mCurrentFocus
. I have explained why in this answer.
New in Python 3.2, you can now use e.g. code_info()
from the dis module:
http://docs.python.org/dev/whatsnew/3.2.html#dis
I don't have access to Python right now, but off the top of my head:
fig = plt.figure()
axes1 = fig.add_subplot(111)
# set props for left y-axis here
axes2 = axes1.twinx() # mirror them
axes2.set_ylabel(...)
Just for diversity I will post variation of https://stackoverflow.com/a/2173421/102484 , because that solution leads to message "Terminated" in my environment:
trap 'test -z "$intrap" && export intrap=1 && kill -- -$$' SIGINT SIGTERM EXIT
It's likely that the download was corrupted if you are getting an error with the disk image. Go back to the downloads page at https://developers.google.com/appengine/downloads and look at the SHA1 checksum. Then, go to your Terminal app on your mac and run the following:
openssl sha1 [put the full path to the file here without brackets]
For example:
openssl sha1 /Users/me/Desktop/myFile.dmg
If you get a different value than the one on the Downloads page, you know your file is not properly downloaded and you should try again.
That should do it
import time
date_time = '29.08.2011 11:05:02'
pattern = '%d.%m.%Y %H:%M:%S'
epoch = int(time.mktime(time.strptime(date_time, pattern)))
print epoch
In my case, adding a dtype attribute changed dtype of the array to a smaller type(from float64 to uint8), decreasing array size enough to not throw MemoryError in Windows(64 bit).
from
mask = np.zeros(edges.shape)
to
mask = np.zeros(edges.shape,dtype='uint8')
public class LmsEmpWfhUtils {
private LmsEmpWfhUtils()
{
// prevents access default paramater-less constructor
}
}
This prevents the default parameter-less constructor from being used elsewhere in your code.
It's a bit surprising seeing multiple answers suggesting to use python
for this task, as there's no need to write a multi-line program for this.
Standard Unix tools like sed
, awk
or perl
can achieve this easily straight from the command-line.
e.g anywhere you have perl
(Windows, Mac, Linux) the following should achieve what the OP asked:
perl -i -pe 's/[ \t]+$//;' files...
Explanation of the arguments to perl
:
-i # run the edit "in place" (modify the original file)
-p # implies a loop with a final print over every input line
-e # next arg is the perl expression to apply (to every line)
s/[ \t]$//
is a substitution regex s/FROM/TO/: replace every trailing (end of line) non-empty space (spaces or tabs) with nothing.
Advantages:
Edit:
Newer versions of
perl
support\h
(any horizontal-space character), so the solution becomes even shorter:
perl -i -pe 's/\h+$//;' files...
More generally, if you want to modify any number of files directly from the command line, replacing every appearance of FOO
with BAR
, you may always use this generic template:
perl -i -pe 's/FOO/BAR/' files...
This C# code is what you want.
%ProjectPath%/SecureStringsEasy.cs
using System;
using System.Security;
using System.Runtime.InteropServices;
namespace SecureStringsEasy
{
public static class MyExtensions
{
public static SecureString ToSecureString(string input)
{
SecureString secureString = new SecureString();
foreach (var item in input)
{
secureString.AppendChar(item);
}
return secureString;
}
public static string ToNormalString(SecureString input)
{
IntPtr strptr = Marshal.SecureStringToBSTR(input);
string normal = Marshal.PtrToStringBSTR(strptr);
Marshal.ZeroFreeBSTR(strptr);
return normal;
}
}
}
you can simply use onBackPressed();
or if you are using fragment you can use getActivity().onBackPressed()
The files are located in your node_modules/react-scripts
folder:
Webpack config:
Start Script:
https://github.com/facebook/create-react-app/blob/master/packages/react-scripts/scripts/start.js
Build Script:
https://github.com/facebook/create-react-app/blob/master/packages/react-scripts/scripts/build.js
Test Script:
https://github.com/facebook/create-react-app/blob/master/packages/react-scripts/scripts/test.js
and so on ...
Now, the purpose of CRA is not to worry about these.
From the documentation:
You don’t need to install or configure tools like Webpack or Babel. They are preconfigured and hidden so that you can focus on the code.
If you want to have access to the config files, you need to eject by running:
npm run eject
Note: this is a one-way operation. Once you eject, you can’t go back!
In most scenarios, it is best not to eject and try to find a way to make it work for you in another way.
If you need to override some of the config options, you can have a look at https://github.com/gsoft-inc/craco
Using pathlib you can get the folder in which the current file is located. __file__
is the pathname of the file from which the module was loaded.
Ref: docs
import pathlib
current_dir = pathlib.Path(__file__).parent
current_file = pathlib.Path(__file__)
Doc ref: link
There are 3 kind of object files.
Contain machine code in a form that can be combined with other relocatable object files at link time, in order to form an executable object file.
If you have an a.c
source file, to create its object file with GCC you should run:
gcc a.c -c
The full process would be: preprocessor (cpp) would run over a.c. Its output (still source) will feed into the compiler (cc1). Its output (assembly) will feed into the assembler (as), which will produce the relocatable object file
. That file contains object code and linking (and debugging if -g
was used) metadata, and is not directly executable.
Special type of relocatable object file that can be loaded dynamically, either at load time, or at run time. Shared libraries are an example of these kinds of objects.
Contain machine code that can be directly loaded into memory (by the loader, e.g execve) and subsequently executed.
The result of running the linker over multiple relocatable object files
is an executable object file
. The linker merges all the input object files from the command line, from left-to-right, by merging all the same-type input sections (e.g. .data
) to the same-type output section. It uses symbol resolution
and relocation
.
When linking against a static library
the functions that are referenced in the input objects are copied to the final executable.
With dynamic libraries
a symbol table is created instead that will enable a dynamic linking with the library's functions/globals. Thus, the result is a partially executable object file, as it depends on the library. If the library doesn't exist, the file can no longer execute).
The linking process can be done as follows:
ld a.o -o myexecutable
The command: gcc a.c -o myexecutable
will invoke all the commands mentioned at point 1 and at point 3 (cpp -> cc1 -> as -> ld1)
1: actually is collect2, which is a wrapper over ld.
I found these tutorials helpful while putting together an action bar (now the 'tool bar' - argh) that supports sliding tabs with Material Design:
https://www.youtube.com/watch?v=Fl0xMuo10yA
You sort of have to synthesize these resources to match your particular situation. For example, you may not want to manually create the tabs in the same style that the exoguru.com tutorial did.
I use Windows 10 Bash shell aka Linux Subsystem aka Ubuntu in Windows 10 as guided here
Starting server and publishing without any projects helped me to modify the "Server Locations".
First, add a pom.xml and make it a maven project and then build it. It will create a War file for you in the target folder after that you can deploy it wherever you want.
pom.xml http://maven.apache.org/xsd/maven-4.0.0.xsd"> 4.0.0 it.megadix create-react-app-servlet 0.0.1-SNAPSHOT war
<properties>
<project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
<npm.output.directory>build</npm.output.directory>
</properties>
<build>
<finalName>${project.artifactId}</finalName>
<plugins>
<!-- Standard plugin to generate WAR -->
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-war-plugin</artifactId>
<version>2.1.1</version>
<configuration>
<webResources>
<resource>
<directory>${npm.output.directory}</directory>
</resource>
</webResources>
<webXml>${basedir}/web.xml</webXml>
</configuration>
</plugin>
<plugin>
<groupId>org.codehaus.mojo</groupId>
<artifactId>exec-maven-plugin</artifactId>
<version>1.3.2</version>
<executions>
<!-- Required: The following will ensure `npm install` is called
before anything else during the 'Default Lifecycle' -->
<execution>
<id>npm install (initialize)</id>
<goals>
<goal>exec</goal>
</goals>
<phase>initialize</phase>
<configuration>
<executable>npm</executable>
<arguments>
<argument>install</argument>
</arguments>
</configuration>
</execution>
<!-- Required: The following will ensure `npm install` is called
before anything else during the 'Clean Lifecycle' -->
<execution>
<id>npm install (clean)</id>
<goals>
<goal>exec</goal>
</goals>
<phase>pre-clean</phase>
<configuration>
<executable>npm</executable>
<arguments>
<argument>install</argument>
</arguments>
</configuration>
</execution>
<!-- Required: This following calls `npm run build` where 'build' is
the script name I used in my project, change this if yours is
different -->
<execution>
<id>npm run build (compile)</id>
<goals>
<goal>exec</goal>
</goals>
<phase>compile</phase>
<configuration>
<executable>npm</executable>
<arguments>
<argument>run</argument>
<argument>build</argument>
</arguments>
</configuration>
</execution>
</executions>
<configuration>
<environmentVariables>
<CI>true</CI>
<!-- The following parameters create an NPM sandbox for CI -->
<NPM_CONFIG_PREFIX>${basedir}/npm</NPM_CONFIG_PREFIX>
<NPM_CONFIG_CACHE>${NPM_CONFIG_PREFIX}/cache</NPM_CONFIG_CACHE>
<NPM_CONFIG_TMP>${project.build.directory}/npmtmp</NPM_CONFIG_TMP>
</environmentVariables>
</configuration>
</plugin>
</plugins>
</build>
<profiles>
<profile>
<id>local</id>
<activation>
<activeByDefault>true</activeByDefault>
</activation>
<build>
<plugins>
<plugin>
<groupId>org.codehaus.mojo</groupId>
<artifactId>exec-maven-plugin</artifactId>
<configuration>
<environmentVariables>
<PUBLIC_URL>http://localhost:8080/${project.artifactId}</PUBLIC_URL>
<REACT_APP_ROUTER_BASE>/${project.artifactId}</REACT_APP_ROUTER_BASE>
</environmentVariables>
</configuration>
</plugin>
</plugins>
</build>
</profile>
<profile>
<id>prod</id>
<build>
<plugins>
<plugin>
<groupId>org.codehaus.mojo</groupId>
<artifactId>exec-maven-plugin</artifactId>
<configuration>
<environmentVariables>
<PUBLIC_URL>http://my-awesome-production-host/${project.artifactId}</PUBLIC_URL>
<REACT_APP_ROUTER_BASE>/${project.artifactId}</REACT_APP_ROUTER_BASE>
</environmentVariables>
</configuration>
</plugin>
</plugins>
</build>
</profile>
</profiles>
Note:- If you find a blank page after running your project then clear your cache or restart your IDE.