You can only import a library which has been installed in your environment.
If you have created a new environment, e.g. to run an older version of Python, maybe you lack 'pandas' package, which is in the 'base' environment of Anaconda by default.
Fix through GUI
To add it to your environment, from the GUI, select your environment, select "All" in the dropdown list, type pandas in the text field, select the pandas package and Apply.
Afterwards, select 'Installed' to verify that the package has been correctly installed.
Easiest and correct way on a single line:
sqlite3 old.db ".dump mytable" | sqlite3 new.db
The primary key and the columns types will be kept.
For eg: you are using two activity, if you want to switch over from Activity A to Activity B
Simply give like this.
Intent intent = new Intent(A.this, B.class);
startActivity(intent);
finish();
To include native libraries you need:
To create jar file, use the following snippet:
task nativeLibsToJar(type: Zip, description: 'create a jar archive of the native libs') {
destinationDir file("$buildDir/native-libs")
baseName 'native-libs'
extension 'jar'
from fileTree(dir: 'libs', include: '**/*.so')
into 'lib/'
}
tasks.withType(Compile) {
compileTask -> compileTask.dependsOn(nativeLibsToJar)
}
To include resulting file, paste the following line into "dependencies" section in "build.gradle" file:
compile fileTree(dir: "$buildDir/native-libs", include: 'native-libs.jar')
While I think this compiler error is a good thing, there is a way you can work around it. Use a condition you know will be true:
public void myMethod(){
someCodeHere();
if(1 < 2) return; // compiler isn't smart enough to complain about this
moreCodeHere();
}
The compiler is not smart enough to complain about that.
$('#some_select_box option:selected').remove();
This question is tagged with PHP. But many people are using Laravel framework now. It might help somebody in future. That's why I answering for Laravel. It's more easy to encrypt and decrypt with internal functions.
$string = 'c4ca4238a0b923820dcc';
$encrypted = \Illuminate\Support\Facades\Crypt::encrypt($string);
$decrypted_string = \Illuminate\Support\Facades\Crypt::decrypt($encrypted);
var_dump($string);
var_dump($encrypted);
var_dump($decrypted_string);
Note: Be sure to set a 16, 24, or 32 character random string in the key option of the config/app.php file. Otherwise, encrypted values will not be secure.
But you should not use encrypt and decrypt for authentication. Rather you should use hash make and check.
$password = Input::get('password_from_user');
$hashed = Hash::make($password); // save $hashed value
// $user is database object
// $inputs is Input from user
if( \Illuminate\Support\Facades\Hash::check( $inputs['password'], $user['password']) == false) {
// Password is not matching
} else {
// Password is matching
}
for recent versions of jupyter/ipython: use jupyter kernelspec
Full doc: https://ipython.readthedocs.io/en/latest/install/kernel_install.html
$ jupyter kernelspec list
Available kernels:
python2 .../Jupyter/kernels/python2
python3 .../Jupyter/kernels/python3
In my case, the python3 kernel setup was broken because the py3.5 linked was no longer there, replaced by a py3.6
Remove:
$ jupyter kernelspec uninstall python3
Add a new one: Using the Python you wish to add and pointing to the python which runs your jupiter:
$ /path/to/kernel/env/bin/python -m ipykernel install --prefix=/path/to/jupyter/env --name 'python-my-env'
See more examples in https://ipython.readthedocs.io/en/6.5.0/install/kernel_install.html#kernels-for-different-environments
List again:
$ jupyter kernelspec list
Available kernels:
python3 /usr/local/lib/python3.6/site-packages/ipykernel/resources
python2 /Users/stefano/Library/Jupyter/kernels/python2
Doc: https://jupyter-client.readthedocs.io/en/latest/kernels.html#kernelspecs
Kernels available are listed under the kernels
folder in Jupyter DATA DIRECTORY (see http://jupyter.readthedocs.io/en/latest/projects/jupyter-directories.html for details).
For instance on macosx that would be /Users/YOURUSERNAME/Library/Jupyter/kernels/
the kernel is simply described by a kernel.json
file, eg. for /Users/me/Library/Jupyter/kernels/python3/kernel.json
{
"argv": [
"/usr/local/opt/python3/bin/python3.5",
"-m",
"ipykernel",
"-f",
"{connection_file}"
],
"language": "python",
"display_name": "Python 3"
}
Rather then manipulating that by hand, you can use the kernelspec
command (as above). It was previously available through ipython now through jupyter (http://ipython.readthedocs.io/en/stable/install/kernel_install.html#kernels-for-different-environments - https://jupyter-client.readthedocs.io/en/latest/kernels.html#kernelspecs).
$ jupyter kernelspec help
Manage Jupyter kernel specifications.
Subcommands
-----------
Subcommands are launched as `jupyter kernelspec cmd [args]`. For information on
using subcommand 'cmd', do: `jupyter kernelspec cmd -h`.
list
List installed kernel specifications.
install
Install a kernel specification directory.
uninstall
Alias for remove
remove
Remove one or more Jupyter kernelspecs by name.
install-self
[DEPRECATED] Install the IPython kernel spec directory for this Python.
To see all available configurables, use `--help-all`
By the way, not strictly related to this question but there's a lot of other kernels available... https://github.com/jupyter/jupyter/wiki/Jupyter-kernels
You can disable them altogether by
(setq make-backup-files nil)
There are new units that you can use:
vw
- viewport width
vh
- viewport height
#neo_main_container1
{
width: 100%; //fallback
width: 100vw;
}
Opera Mini does not support this, but you can use it in all other modern browsers.
Deleting/Moving tablename.ibd sure did not work for me.
How I solved it
Since I was going to delete the corrupted and non existing table, I took a backup of the other tables by going to phpmyadmin->database->export->selected tables to backup->export(as .sql).
After that I selected the database icon next to database name and then dropped it. Created a new database. Select your new database->import-> Select the file you downloaded earlier->click import. Now I have my old working tables and have the corrupted table deleted. Now I just create the table that was throwing the error.
Likely I had an earlier backup of the corrupted table.
Dart Object
type has a runtimeType
instance member (source is from dart-sdk
v1.14, don't know if it was available earlier)
class Object {
//...
external Type get runtimeType;
}
Usage:
Object o = 'foo';
assert(o.runtimeType == String);
They are signals that application developers use. The kernel shouldn't ever send these to a process. You can send them using kill(2)
or using the utility kill(1)
.
If you intend to use signals for synchronization you might want to check real-time signals (there's more of them, they are queued, their delivery order is guaranteed etc).
Here is a Swift 3 version:
private func getHtmlLabel(text: String) -> UILabel {
let label = UILabel()
label.numberOfLines = 0
label.lineBreakMode = .byWordWrapping
label.attributedString = stringFromHtml(string: text)
return label
}
private func stringFromHtml(string: String) -> NSAttributedString? {
do {
let data = string.data(using: String.Encoding.utf8, allowLossyConversion: true)
if let d = data {
let str = try NSAttributedString(data: d,
options: [NSDocumentTypeDocumentAttribute: NSHTMLTextDocumentType],
documentAttributes: nil)
return str
}
} catch {
}
return nil
}
I found issues with some of the other answers here and it took me a bit to get this right. I set the line break mode and number of lines so that the label sized appropriately when the HTML spanned multiple lines.
gawk
awk '{q=p;p=$0}NR>1{print q}END{ORS = ""; print p}' file
Consider using Android's uiautomator, with adb shell uiautomator [...] or directly using the .jar that comes with the SDK.
POJO = Plain Old Java Object. It has properties, getters and setters for respective properties. It may also override Object.toString()
and Object.equals()
.
Java Beans : See Wiki link.
Normal Class : Any java Class.
Yes, it does. From the AdMob page:
The Mobile Ads SDK for iOS utilizes Apple's advertising identifier (IDFA). The SDK uses IDFA under the guidelines laid out in the iOS developer program license agreement. You must ensure you are in compliance with the iOS developer program license agreement policies governing the use of this identifier.
Use .length
to count number of characters, and $.trim()
function to remove spaces, and replace(/ /g,'')
to replace multiple spaces with just one. Here is an example:
var str = " Hel lo ";
console.log(str.length);
console.log($.trim(str).length);
console.log(str.replace(/ /g,'').length);
Output:
20
7
5
Source: How to count number of characters in a string with JQuery
Your task declaration is incorrectly combining the Copy
task type and project.copy
method, resulting in a task that has nothing to copy and thus never runs. Besides, Copy
isn't the right choice for renaming a directory. There is no Gradle API for renaming, but a bit of Groovy code (leveraging Java's File
API) will do. Assuming Project1
is the project directory:
task renABCToXYZ { doLast { file("ABC").renameTo(file("XYZ")) } }
Looking at the bigger picture, it's probably better to add the renaming logic (i.e. the doLast
task action) to the task that produces ABC
.
Simple Example to understand how to access elements in the dictionary:-
d = {'dog' : 'bark', 'cat' : 'meow' }
print(d.get('cat'))
print(d.get('lion'))
print(d.get('lion', 'Not in the dictionary'))
print(d.get('lion', 'NA'))
print(d.get('dog', 'NA'))
Explore more about Python Dictionaries and learn interactively here...
I think the best way to do it to bind it with ngModel.
<select name="num" [(ngModel)]="number">
<option *ngFor="let n of numbers" [value]="n">{{n}}</option>
</select>
and in ts file add
number=47;
numbers=[45,46,47]
To stash your working directory including untracked files (especially those that are in the .gitignore) then you probably want to use this cmd:
git stash --include-untracked
(Alternatively, you can use the shorthand -u
instead of --include-untracked
)
Update 17 May 2018:
New versions of git now have git stash --all
which stashes all files, including untracked and ignored files.
git stash --include-untracked
no longer touches ignored files (tested on git 2.16.2).
Original answer below:
As of version 1.7.7 you can use git stash --include-untracked
or git stash save -u
to stash untracked files without staging them.
Add (git add
) the file and start tracking it. Then stash. Since the entire contents of the file are new, they will be stashed, and you can manipulate it as necessary.
CREATE USER 'username'@'localhost' IDENTIFIED BY 'password';
GRANT ALL PRIVILEGES ON *.* TO 'organizer'@'localhost' WITH GRANT OPTION;
CREATE USER 'username'@'%' IDENTIFIED BY 'password';
GRANT ALL PRIVILEGES ON *.* TO 'organizer'@'%' WITH GRANT OPTION;
FLUSH PRIVILEGES;
no need to stop/start mysql
Provided you are running Jupyter Notebook, the %matplotlib inline command will make your plot outputs appear in the notebook, also can be stored.
You need only to write:
GRANT DBA TO NewDBA;
Because this already makes the user a DB Administrator
To me, it works this way:
# Creating the ARRAY from Result.
$array=array();
while($row = $result->fetch_array(MYSQL_ASSOC))
{
# Converting each column to UTF8
$row = array_map('utf8_encode', $row);
array_push($array,$row);
}
json_encode($array);
on unix like operating systems exit belongs to group of system calls. system calls are special calls which enable user code (your code) to call kernel code. so exit call makes some OS specific clean-up actions before returning control to OS, it terminates the program.
#include <stdlib.h>
// example 1
int main(int argc, char *argv){
exit(EXIT_SUCCESS);
}
// example 2
int main(int argc, char *argv){
return 0;
}
Some compilers will give you the same opcode from both of these examples but some won't. For example opcode from first function will not include any kind of stack positioning opcode which will be included in the second example like for any other function. You could compile both examples and disassemble them and you will see the difference.
You can use exit from any part of your code and be sure that process terminates. Don't forget to include integer parameter.
Just to elaborate a bit more on Henry's answer, you can also use specific error codes, from raise_application_error and handle them accordingly on the client side. For example:
Suppose you had a PL/SQL procedure like this to check for the existence of a location record:
PROCEDURE chk_location_exists
(
p_location_id IN location.gie_location_id%TYPE
)
AS
l_cnt INTEGER := 0;
BEGIN
SELECT COUNT(*)
INTO l_cnt
FROM location
WHERE gie_location_id = p_location_id;
IF l_cnt = 0
THEN
raise_application_error(
gc_entity_not_found,
'The associated location record could not be found.');
END IF;
END;
The raise_application_error allows you to raise a specific error code. In your package header, you can define:
gc_entity_not_found INTEGER := -20001;
If you need other error codes for other types of errors, you can define other error codes using -20002, -20003, etc.
Then on the client side, you can do something like this (this example is for C#):
/// <summary>
/// <para>Represents Oracle error number when entity is not found in database.</para>
/// </summary>
private const int OraEntityNotFoundInDB = 20001;
And you can execute your code in a try/catch
try
{
// call the chk_location_exists SP
}
catch (Exception e)
{
if ((e is OracleException) && (((OracleException)e).Number == OraEntityNotFoundInDB))
{
// create an EntityNotFoundException with message indicating that entity was not found in
// database; use the message of the OracleException, which will indicate the table corresponding
// to the entity which wasn't found and also the exact line in the PL/SQL code where the application
// error was raised
return new EntityNotFoundException(
"A required entity was not found in the database: " + e.Message);
}
}
Add android:screenOrientation="portrait" to the activity in the AndroidManifest.xml. For example:
<activity android:name=".SomeActivity"
android:label="@string/app_name"
android:screenOrientation="portrait">
you could use setBackgroundResource()
instead i.e. relativeLayout.setBackgroundResource(R.drawable.back);
this works for me.
It's called a shebang. In unix-speak, # is called sharp (like in music) or hash (like hashtags on twitter), and ! is called bang. (You can actually reference your previous shell command with !!, called bang-bang). So when put together, you get haSH-BANG, or shebang.
The part after the #! tells Unix what program to use to run it. If it isn't specified, it will try with bash (or sh, or zsh, or whatever your $SHELL variable is) but if it's there it will use that program. Plus, # is a comment in most languages, so the line gets ignored in the subsequent execution.
From my experience of having trouble applying previous answers, I have found that I needed to modify their approach in order to achieve what the question here is:
How to get rid of columns where for ALL rows the value is NA?
First note that my solution will only work if you do not have duplicate columns (that issue is dealt with here (on stack overflow)
Second, it uses dplyr
.
Instead of
df <- df %>% select_if(~all(!is.na(.)))
I find that what works is
df <- df %>% select_if(~!all(is.na(.)))
The point is that the "not" symbol "!" needs to be on the outside of the universal quantifier. I.e. the select_if
operator acts on columns. In this case, it selects only those that do not satisfy the criterion
every element is equal to "NA"
I think these official guide should work for your case.
VS Code allows you to quickly search over all files in the currently-opened folder. Press Ctrl+Shift+F and enter in your search term. Search results are grouped into files containing the search term, with an indication of the hits in each file and its location. Expand a file to see a preview of all of the hits within that file. Then single-click on one of the hits to view it in the editor.
On Mac OS X Yosemite just install:
Java SE Development Kit 8
and
Java Version 8 Update 25
It's all, work for me too! like gehev said , so simple !
Short answer, you can't.
HTML is used for the page's structure and can't send e-mails, you will need a server side language (such as PHP) to send e-mails, you can also use a third party service and let them handle the e-mail sending for you.
Try this:
.slideContainer {_x000D_
overflow-x: scroll;_x000D_
white-space: nowrap;_x000D_
}_x000D_
.slide {_x000D_
display: inline-block;_x000D_
width: 600px;_x000D_
white-space: normal;_x000D_
}
_x000D_
<div class="slideContainer">_x000D_
<span class="slide">Some content</span>_x000D_
<span class="slide">More content. Lorem ipsum dolor sit amet, consectetur adipisicing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam, quis nostrud exercitation ullamco laboris nisi ut aliquip ex ea commodo consequat. Duis aute irure dolor in reprehenderit in voluptate velit esse cillum dolore eu fugiat nulla pariatur. Excepteur sint occaecat cupidatat non proident, sunt in culpa qui officia deserunt mollit anim id est laborum.</span>_x000D_
<span class="slide">Even more content!</span>_x000D_
</div>
_x000D_
Note that you can omit .slideContainer { overflow-x: scroll; }
(which browsers may or may not support when you read this), and you'll get a scrollbar on the window instead of on this container.
The key here is display: inline-block
. This has decent cross-browser support nowadays, but as usual, it's worth testing in all target browsers to be sure.
Here are some examples:
> z$mean <- rowMeans(subset(z, select = c(x, y)), na.rm = TRUE)
> z
w x y mean
1 5 1 1 1
2 6 2 2 2
3 7 3 3 3
4 8 4 NA 4
weighted mean
> z$y <- rev(z$y)
> z
w x y mean
1 5 1 NA 1
2 6 2 3 2
3 7 3 2 3
4 8 4 1 4
>
> weight <- c(1, 2) # x * 1/3 + y * 2/3
> z$wmean <- apply(subset(z, select = c(x, y)), 1, function(d) weighted.mean(d, weight, na.rm = TRUE))
> z
w x y mean wmean
1 5 1 NA 1 1.000000
2 6 2 3 2 2.666667
3 7 3 2 3 2.333333
4 8 4 1 4 2.000000
If you like using the sklearn package, you can keep the column and index names by using pandas loc
like so:
from sklearn.preprocessing import MinMaxScaler
scaler = MinMaxScaler()
scaled_values = scaler.fit_transform(df)
df.loc[:,:] = scaled_values
For anybody that wants a quick solution here is how I removed Decimal from my queries in Django
total_development_cost_var = process_assumption_objects.values('total_development_cost').aggregate(sum_dev = Sum('total_development_cost', output_field=FloatField()))
total_development_cost_var = list(total_development_cost_var.values())
Hope it helps
onclick
may not be the best event to attach that action to. Anytime anyone clicks anywhere in the form, it will open the window.
<form action="..." ...
onsubmit="window.open('google.html', '_blank', 'scrollbars=no,menubar=no,height=600,width=800,resizable=yes,toolbar=no,status=no');return true;">
__PRETTY_FUNCTION__
handles C++ features: classes, namespaces, templates and overload
main.cpp
#include <iostream>
namespace N {
class C {
public:
template <class T>
static void f(int i) {
(void)i;
std::cout << "__func__ " << __func__ << std::endl
<< "__FUNCTION__ " << __FUNCTION__ << std::endl
<< "__PRETTY_FUNCTION__ " << __PRETTY_FUNCTION__ << std::endl;
}
template <class T>
static void f(double f) {
(void)f;
std::cout << "__PRETTY_FUNCTION__ " << __PRETTY_FUNCTION__ << std::endl;
}
};
}
int main() {
N::C::f<char>(1);
N::C::f<void>(1.0);
}
Compile and run:
g++ -ggdb3 -O0 -std=c++11 -Wall -Wextra -pedantic -o main.out main.cpp
./main.out
Output:
__func__ f
__FUNCTION__ f
__PRETTY_FUNCTION__ static void N::C::f(int) [with T = char]
__PRETTY_FUNCTION__ static void N::C::f(double) [with T = void]
You may also be interested in stack traces with function names: print call stack in C or C++
Tested in Ubuntu 19.04, GCC 8.3.0.
C++20 std::source_location::function_name
http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2019/p1208r5.pdf went into C++20, so we have yet another way to do it.
The documentation says:
constexpr const char* function_name() const noexcept;
6 Returns: If this object represents a position in the body of a function, returns an implementation-defined NTBS that should correspond to the function name. Otherwise, returns an empty string.
where NTBS means "Null Terminated Byte String".
I'll give it a try when support arrives to GCC, GCC 9.1.0 with g++-9 -std=c++2a
still doesn't support it.
https://en.cppreference.com/w/cpp/utility/source_location claims usage will be like:
#include <iostream>
#include <string_view>
#include <source_location>
void log(std::string_view message,
const std::source_location& location std::source_location::current()
) {
std::cout << "info:"
<< location.file_name() << ":"
<< location.line() << ":"
<< location.function_name() << " "
<< message << '\n';
}
int main() {
log("Hello world!");
}
Possible output:
info:main.cpp:16:main Hello world!
so note how this returns the caller information, and is therefore perfect for usage in logging, see also: Is there a way to get function name inside a C++ function?
To use image in Flutter. Do these steps.
1. Create a Directory inside assets folder named images. As shown in figure below
2. Put your desired images to images folder.
3. Open pubpsec.yaml file . And add declare your images.Like:--
4. Use this images in your code as.
Card(
elevation: 10,
child: Container(
decoration: BoxDecoration(
color: Colors.orangeAccent,
image: DecorationImage(
image: AssetImage("assets/images/dropbox.png"),
fit: BoxFit.fitWidth,
alignment: Alignment.topCenter,
),
),
child: Text("$index",style: TextStyle(color: Colors.red,fontSize: 16,fontFamily:'LangerReguler')),
alignment: Alignment.center,
),
);
I know this is an old post and I do favor extension methods, but here's a simple class I use from time to time to handle dictionaries when I need default values.
I wish this were just part of the base Dictionary class.
public class DictionaryWithDefault<TKey, TValue> : Dictionary<TKey, TValue>
{
TValue _default;
public TValue DefaultValue {
get { return _default; }
set { _default = value; }
}
public DictionaryWithDefault() : base() { }
public DictionaryWithDefault(TValue defaultValue) : base() {
_default = defaultValue;
}
public new TValue this[TKey key]
{
get {
TValue t;
return base.TryGetValue(key, out t) ? t : _default;
}
set { base[key] = value; }
}
}
Beware, however. By subclassing and using new
(since override
is not available on the native Dictionary
type), if a DictionaryWithDefault
object is upcast to a plain Dictionary
, calling the indexer will use the base Dictionary
implementation (throwing an exception if missing) rather than the subclass's implementation.
$('#fm_submit').submit(function(e){_x000D_
e.preventDefault();_x000D_
var ck_box = $('input[type="checkbox"]:checked').length;_x000D_
_x000D_
// return in firefox or chrome console _x000D_
// the number of checkbox checked_x000D_
console.log(ck_box); _x000D_
_x000D_
if(ck_box > 0){_x000D_
alert(ck_box);_x000D_
} _x000D_
});
_x000D_
<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>_x000D_
<form name = "frmTest[]" id="fm_submit">_x000D_
<input type="checkbox" value="true" checked="true" >_x000D_
<input type="checkbox" value="true" checked="true" >_x000D_
<input type="checkbox" >_x000D_
<input type="checkbox" >_x000D_
<input type="submit" id="fm_submit" name="fm_submit" value="Submit">_x000D_
</form>_x000D_
<div class="container"></div>
_x000D_
It seems that the shortest way is to combine LINQ and string.Concat
:
var input = @"My name @is ,Wan.;'; Wan";
var chrs = new[] {'@', ',', '.', ';', '\''};
var result = string.Concat(input.Where(c => !chrs.Contains(c)));
// => result = "My name is Wan Wan"
See the C# demo. Note that string.Concat
is a shortcut to string.Join("", ...)
.
Note that using a regex to remove individual known chars is still possible to build dynamically, although it is believed that regex is slower. However, here is a way to build such a dynamic regex (where all you need is a character class):
var pattern = $"[{Regex.Escape(new string(chrs))}]+";
var result = Regex.Replace(input, pattern, string.Empty);
See another C# demo. The regex will look like [@,\.;']+
(matching one or more (+
) consecutive occurrences of @
, ,
, .
, ;
or '
chars) where the dot does not have to be escaped, but Regex.Escape
will be necessary to escape other chars that must be escaped, like \
, ^
, ]
or -
whose position inside the character class you cannot predict.
You can press OK and install xampp to C:\xampp and not into program files
First, disable the php5
module:
a2dismod php5
then, enable the php7
module:
a2enmod php7.0
Next, reload/restart the Apache service:
service apache2 restart
wrt the comment, you need to specify exact installed php-7.x version.
A clustered index means you are telling the database to store close values actually close to one another on the disk. This has the benefit of rapid scan / retrieval of records falling into some range of clustered index values.
For example, you have two tables, Customer and Order:
Customer
----------
ID
Name
Address
Order
----------
ID
CustomerID
Price
If you wish to quickly retrieve all orders of one particular customer, you may wish to create a clustered index on the "CustomerID" column of the Order table. This way the records with the same CustomerID will be physically stored close to each other on disk (clustered) which speeds up their retrieval.
P.S. The index on CustomerID will obviously be not unique, so you either need to add a second field to "uniquify" the index or let the database handle that for you but that's another story.
Regarding multiple indexes. You can have only one clustered index per table because this defines how the data is physically arranged. If you wish an analogy, imagine a big room with many tables in it. You can either put these tables to form several rows or pull them all together to form a big conference table, but not both ways at the same time. A table can have other indexes, they will then point to the entries in the clustered index which in its turn will finally say where to find the actual data.
In pre Sql 2008 By taking out the date part:
GROUP BY CONVERT(CHAR(8),DateTimeColumn,10)
When you have changes on your working copy, from command line do:
git stash
This will stash your changes and clear your status report
git pull
This will pull changes from upstream branch. Make sure it says fast-forward in the report. If it doesn't, you are probably doing an unintended merge
git stash pop
This will apply stashed changes back to working copy and remove the changes from stash unless you have conflicts. In the case of conflict, they will stay in stash so you can start over if needed.
if you need to see what is in your stash
git stash list
The patch is here: https://code.ros.org/trac/opencv/attachment/ticket/862/OpenCV-2.2-nov4l1.patch
By adding #ifdef HAVE_CAMV4L
around
#include <linux/videodev.h>
in OpenCV-2.2.0/modules/highgui/src/cap_v4l.cpp
and removing || defined (HAVE_CAMV4L2)
from line 174
allowed me to compile.
Yes, the namespace is important. Once in my project, I needed to import one var declaration into my source code, but when compiling it, it conflicted with another third-party library.
At the end, I had to work around around it by some other means and make the code less clear.
In order to accomplish spacing between items in a RecylerView, we can use ItemDecorators:
addItemDecoration(object : RecyclerView.ItemDecoration() {
override fun getItemOffsets(
outRect: Rect,
view: View,
parent: RecyclerView,
state: RecyclerView.State,
) {
super.getItemOffsets(outRect, view, parent, state)
if (parent.getChildAdapterPosition(view) > 0) {
outRect.top = 8.dp // Change this value with anything you want. Remember that you need to convert integers to pixels if you are working with dps :)
}
}
})
A few things to have in consideration given the code I pasted:
You don't really need to call super.getItemOffsets
but I chose to, because I want to extend the behavior defined by the base class. If the library got an update doing more logic behind the scenes, we would miss it.
As an alternative to adding top spacing to the Rect
, you could also add bottom spacing, but the logic related to getting the last item of the adapter is more complex, so this might be slightly better.
I used an extension property to convert a simple integer to dps: 8.dp
. Something like this might work:
val Int.dp: Int
get() = (this * Resources.getSystem().displayMetrics.density + 0.5f).toInt()
// Extension function works too, but invoking it would become something like 8.dp()
Below is one of the way by which you can achieve that, may not be an ideal way to do.
Have one method accepting both types of request, then check what type of request you received, is it of type "GET" or "POST", once you come to know that, do respective actions and the call one method which does common task for both request Methods ie GET and POST.
@RequestMapping(value = "/books")
public ModelAndView listBooks(HttpServletRequest request){
//handle both get and post request here
// first check request type and do respective actions needed for get and post.
if(GET REQUEST){
//WORK RELATED TO GET
}else if(POST REQUEST){
//WORK RELATED TO POST
}
commonMethod(param1, param2....);
}
You use ttk.Frame
, bg
option does not work for it. You should create style and apply it to the frame.
from tkinter import *
from tkinter.ttk import *
root = Tk()
s = Style()
s.configure('My.TFrame', background='red')
mail1 = Frame(root, style='My.TFrame')
mail1.place(height=70, width=400, x=83, y=109)
mail1.config()
root.mainloop()
This counts the rows of the inner query:
select count(*) from (
select count(SID)
from Test
where Date = '2012-12-10'
group by SID
) t
However, in this case the effect of that is the same as this:
select count(distinct SID) from Test where Date = '2012-12-10'
This is how to set an image into ImageView
using the setImageResource() method:
ImageView myImageView = (ImageView)v.findViewById(R.id.img_play);
// supossing to have an image called ic_play inside my drawables.
myImageView.setImageResource(R.drawable.ic_play);
#include <iostream>
#include <string>
using namespace std;
int main()
{
cout << stod(" 99.999 ") << endl;
}
Output: 99.999
(which is double, whitespace was automatically stripped)
Since C++11 converting string to floating-point values (like double) is available with functions:
stof - convert str to a float
stod - convert str to a double
stold - convert str to a long double
As conversion of string to int was also mentioned in the question, there are the following functions in C++11:
stoi - convert str to an int
stol - convert str to a long
stoul - convert str to an unsigned long
stoll - convert str to a long long
stoull - convert str to an unsigned long long
Clean way with no jQuery:
function check(some_id) {
var content = document.getElementById(some_id).childNodes[0].nodeValue;
alert(content);
}
This is assuming each span has only the value as a child and no embedded HTML.
Since the Logical Address space is 32-bit long that means program size is 2^32 bytes i.e. 4GB. Now we have the page size of 4KB i.e.2^12 bytes.Thus the number of pages in program are 2^20.(no. of pages in program = program size/page size).Now the size of page table entry is 4 byte hence the size of page table is 2^20*4 = 4MB(size of page table = no. of pages in program * page table entry size). Hence 4MB space is required in Memory to store the page table.
For Kotlin:
In your adapter, simply call
(context as Your_Activity_Name).yourMethod()
I recommend trying Kestrel, it's fast and simple as Beanstalk but supports fanout queues. Speaks memcached. It's built using Scala and used at Twitter.
myList = [i.split('\t')[0] for i in myList]
BFree's answer worked for me. I needed to post the stream right to the browser. Which I'd imagine is a common alternative. I added the following to BFree's Main() code to do this:
//StreamReader reader = new StreamReader(stream);
//Console.WriteLine(reader.ReadToEnd());
string fileName = "fileName.csv";
HttpContext.Current.Response.ContentType = "application/vnd.openxmlformats-officedocument.spreadsheetml.sheet";
HttpContext.Current.Response.AddHeader("content-disposition", string.Format("attachment;filename={0}", fileName));
stream.Position = 0;
stream.WriteTo(HttpContext.Current.Response.OutputStream);
This question is about whether an element exists and all answers check if it doesn't exist :) Minor difference but worth mentioning.
Based on jQuery documentation the recommended way to check for existence is
if ($( "#myDiv" ).length) {
// element exists
}
If you prefer to check for missing element you could use either:
if (!$( "#myDiv" ).length) {
// element doesn't exist
}
or
if (0 === $( "#myDiv" ).length) {
// element doesn't exist
}
Note please that in the second option I've used === which is slightly faster than == and put the 0 on the left as a Yoda condition.
updated based on Xbello
comment:
string = my_string.rstrip('\r\n')
read more here
string date = DateTime.Now.ToString();
date = date.Replace("/", "");
date = date.Replace(":", "");
date = date.Replace(" ", "");
date = date.Replace("AM", "");
date = date.Replace("PM", "");
return date;
A great post explaining different casts in C/C++, and what C-style cast really does: https://anteru.net/blog/2007/12/18/200/index.html
C-Style casting, using the (type)variable syntax. The worst ever invented. This tries to do the following casts, in this order: (see also C++ Standard, 5.4 expr.cast paragraph 5)
- const_cast
- static_cast
- static_cast followed by const_cast
- reinterpret_cast
- reinterpret_castfollowed by const_cast
A reference is an alias for another variable whereas a pointer holds the memory address of a variable. References are generally used as function parameters so that the passed object is not the copy but the object itself.
void fun(int &a, int &b); // A common usage of references.
int a = 0;
int &b = a; // b is an alias for a. Not so common to use.
Look at the types of those properties:
In [1]: import datetime
In [2]: d = datetime.date.today()
In [3]: type(d.month)
Out[3]: <type 'int'>
In [4]: type(d.day)
Out[4]: <type 'int'>
Both are integers. So there is no automatic way to do what you want. So in the narrow sense, the answer to your question is no.
If you want leading zeroes, you'll have to format them one way or another. For that you have several options:
In [5]: '{:02d}'.format(d.month)
Out[5]: '03'
In [6]: '%02d' % d.month
Out[6]: '03'
In [7]: d.strftime('%m')
Out[7]: '03'
In [8]: f'{d.month:02d}'
Out[8]: '03'
obj={};
$.each(obj, function (key, value) {
console.log(key+ ' : ' + value); //push the object value
});
for (var i in obj) {
nameList += "" + obj[i] + "";//display the object value
}
$("id/class").html($(nameList).length);//display the length of object.
shopt -s nocaseglob
For c++ use std::array<int/*type*/, 10/*size*/>
instead of c-style array. This is available with c++11 standard, and which is a good practice. See it here for standard and examples. If you want to stick to old c-style arrays for reasons, there two possible ways:
int *a = new int[5]();
Here leave the parenthesis empty, otherwise it will give compile error. This will initialize all the elements in the allocated array. Here if you don't use the parenthesis, it will still initialize the integer values with zeros because new will call the constructor, which is in this case int()
.int *a = new int[5] {0, 0, 0};
This is allowed in c++11 standard. Here you can initialize array elements with any value you want. Here make sure your initializer list(values in {}) size should not be greater than your array size. Initializer list size less than array size is fine. Remaining values in array will be initialized with 0.To add columns in existing table:
ALTER TABLE table_name
ADD
column_name DATATYPE NULL
To delete columns in existing table:
ALTER TABLE table_name
DROP COLUMN column_name
Here is my solution:
axios({
method: "POST",
url: "https://URL.com/api/services/fetchQuizList",
headers: {
"x-access-key": data,
"x-access-token": token,
},
data: {
quiz_name: quizname,
},
})
.then(res => {
console.log("res", res.data.message);
})
.catch(err => {
console.log("error in request", err);
});
This should help
This is one way to do it:
Fiddle here: http://jsfiddle.net/4Mvan/1/
HTML:
<div class='container'>
<a href='#'>
<img class='resize_fit_center'
src='http://i.imgur.com/H9lpVkZ.jpg' />
</a>
</div>
CSS:
.container {
margin: 10px;
width: 115px;
height: 115px;
line-height: 115px;
text-align: center;
border: 1px solid red;
}
.resize_fit_center {
max-width:100%;
max-height:100%;
vertical-align: middle;
}
#!/usr/bin/env python
#-*- coding: utf-8 -*-
u = u'moçambique'
print u.encode("utf-8")
print u
chmod +x test.py
./test.py
moçambique
moçambique
./test.py > output.txt
Traceback (most recent call last):
File "./test.py", line 5, in <module>
print u
UnicodeEncodeError: 'ascii' codec can't encode character
u'\xe7' in position 2: ordinal not in range(128)
on shell works , sending to sdtout not , so that is one workaround, to write to stdout .
I made other approach, which is not run if sys.stdout.encoding is not define, or in others words , need export PYTHONIOENCODING=UTF-8 first to write to stdout.
import sys
if (sys.stdout.encoding is None):
print >> sys.stderr, "please set python env PYTHONIOENCODING=UTF-8, example: export PYTHONIOENCODING=UTF-8, when write to stdout."
exit(1)
so, using same example:
export PYTHONIOENCODING=UTF-8
./test.py > output.txt
will work
Adding to @Greg Hewgill answer: if you want to be able to match both date-time and only date, you can make the "time" part of the regex optional:
(\d{4})-(\d{2})-(\d{2})( (\d{2}):(\d{2}):(\d{2}))?
this way you will match both 2008-09-01 12:35:42
and 2008-09-01
Another way is using a SQL Server built-in feature named Client Statistics
which is accessible through Menu > Query > Include Client Statistics.
You can run each query in separated query window and compare the results which is given in Client Statistics
tab just beside the Messages
tab.
For example in image below it shows that the average time elapsed to get the server reply for one of my queries is 39 milliseconds.
You can read all 3 ways for acquiring execution time in here.
You may even need to display Estimated Execution Plan
ctrlL for further investigation about your query.
Here is a code snip to do exactly that.
public void scaleView(View v, float startScale, float endScale) {
Animation anim = new ScaleAnimation(
1f, 1f, // Start and end values for the X axis scaling
startScale, endScale, // Start and end values for the Y axis scaling
Animation.RELATIVE_TO_SELF, 0f, // Pivot point of X scaling
Animation.RELATIVE_TO_SELF, 1f); // Pivot point of Y scaling
anim.setFillAfter(true); // Needed to keep the result of the animation
anim.setDuration(1000);
v.startAnimation(anim);
}
The ScaleAnimation constructor used here takes 8 args, 4 related to handling the X-scale which we don't care about (1f, 1f, ... Animation.RELATIVE_TO_SELF, 0f, ...)
.
The other 4 args are for the Y-scaling we do care about.
startScale, endScale
- In your case, you'd use 0f, 0.6f
.
Animation.RELATIVE_TO_SELF, 1f
- This specifies where the shrinking of the view collapses to (referred to as the pivot in the documentation). Here, we set the float value to 1f
because we want the animation to start growing the bar from the bottom. If we wanted it to grow downward from the top, we'd use 0f
.
Finally, and equally important, is the call to anim.setFillAfter(true)
. If you want the result of the animation to stick around after the animation completes, you must run this on the animator before executing the animation.
So in your case, you can do something like this:
View v = findViewById(R.id.viewContainer);
scaleView(v, 0f, .6f);
instead of using
ReactDOM.unmountComponentAtNode(ReactDOM.findDOMNode(this).parentNode);
try using
ReactDOM.unmountComponentAtNode(document.getElementById('root'));
In Java 8 that parameter is commonly used to print a warning message like this one:
Java HotSpot(TM) 64-Bit Server VM warning: ignoring option MaxPermSize=512m; support was removed in 8.0
The reason why you get this message in Java 8 is because Permgen has been replaced by Metaspace to address some of PermGen's drawbacks (as you were able to see for yourself, one of those drawbacks is that it had a fixed size).
FYI: an article on Metaspace: http://java-latte.blogspot.in/2014/03/metaspace-in-java-8.html
As an alternative, you can install 7.1 version of mcrypt
and create a symbolic link to it:
Install php7.1-mcrypt:
sudo apt install php7.1-mcrypt
Create a symbolic link:
sudo ln -s /etc/php/7.1/mods-available/mcrypt.ini /etc/php/7.2/mods-available
After enabling mcrypt
by sudo phpenmod mcrypt
, it gets available.
I know this is really old, but this is the simplest way to query for Map.
Simply implement the ResultSetExtractor interface to define what type you want to return. Below is an example of how to use this. You'll be mapping it manually, but for a simple map, it should be straightforward.
jdbcTemplate.query("select string1,string2 from table where x=1", new ResultSetExtractor<Map>(){
@Override
public Map extractData(ResultSet rs) throws SQLException,DataAccessException {
HashMap<String,String> mapRet= new HashMap<String,String>();
while(rs.next()){
mapRet.put(rs.getString("string1"),rs.getString("string2"));
}
return mapRet;
}
});
This will give you a return type of Map that has multiple rows (however many your query returned) and not a list of Maps. You can view the ResultSetExtractor docs here: http://docs.spring.io/spring-framework/docs/2.5.6/api/org/springframework/jdbc/core/ResultSetExtractor.html
I've had to face this issue and also tried to solve it from different perspectives. Finally I found a solution by using a single flag to check if an error happened.
... extends WebViewClient {
boolean error;
@Override
public void onPageStarted(WebView view, String url, Bitmap favicon) {
showLoading(true);
super.onPageStarted(view, url, favicon);
error = false; // IMPORTANT
}
@Override
public void onPageFinished(WebView view, String url) {
super.onPageFinished(view, url);
if(!error) {
Observable.timer(100, TimeUnit.MICROSECONDS, AndroidSchedulers.mainThread())
.subscribe((data) -> view.setVisibility(View.VISIBLE) );
}
showLoading(false);
}
@Override
public void onReceivedError(WebView view, int errorCode, String description, String failingUrl) {
view.stopLoading();
view.setVisibility(View.INVISIBLE)
error = true;
// Handle the error
}
@Override
@TargetApi(android.os.Build.VERSION_CODES.M)
public void onReceivedError(WebView view,
WebResourceRequest request,
WebResourceError error) {
this.onReceivedError(view, error.getErrorCode(),
error.getDescription().toString(),
request.getUrl().toString());
}
}
This way I hide the page every time there's an error and show it when the page has loaded again properly.
Also added a small delay in case.
I avoided the solution of loading an empty page as it does not allow you to do webview.reload() later on due to it adds that new page in the navigation history.
Your script could be stopping, not because of the PHP timeout but because of the timeout in the browser you're using to access the script (ie. Firefox, Chrome, etc). Unfortunately there's seldom an easy way to extend this timeout, and in most browsers you simply can't. An option you have here is to access the script over a terminal. For example, on Windows you would make sure the PHP executable is in your path variable and then I think you execute:
C:\path\to\script> php script.php
Or, if you're using the PHP CGI, I think it's:
C:\path\to\script> php-cgi script.php
Plus, you would also set ini_set('max_execution_time', 0);
in your script as others have mentioned. When running a PHP script this way, I'm pretty sure you can use buffer flushing to echo out the script's progress to the terminal periodically if you wish. The biggest issue I think with this method is there's really no way of stopping the script once it's started, other than stopping the entire PHP process or service.
The docs indicate that numpy.correlate
is not what you are looking for:
numpy.correlate(a, v, mode='valid', old_behavior=False)[source]
Cross-correlation of two 1-dimensional sequences.
This function computes the correlation as generally defined in signal processing texts:
z[k] = sum_n a[n] * conj(v[n+k])
with a and v sequences being zero-padded where necessary and conj being the conjugate.
Instead, as the other comments suggested, you are looking for a Pearson correlation coefficient. To do this with scipy try:
from scipy.stats.stats import pearsonr
a = [1,4,6]
b = [1,2,3]
print pearsonr(a,b)
This gives
(0.99339926779878274, 0.073186395040328034)
You can also use numpy.corrcoef
:
import numpy
print numpy.corrcoef(a,b)
This gives:
[[ 1. 0.99339927]
[ 0.99339927 1. ]]
In my case I am using the log4j2 Json file log4j2.json
in the classpath of my gradle project and I got the same error.
The solution here was to add dependency for JSON handling to my gradle dependencies.
compile group:"com.fasterxml.jackson.core", name:"jackson-core", version:'2.8.4'
compile group:"com.fasterxml.jackson.core", name:"jackson-databind", version:'2.8.4'
compile group:"com.fasterxml.jackson.core", name:"jackson-annotations", version:'2.8.4'
See also documentation of log4j2:
The JSON support uses the Jackson Data Processor to parse the JSON files. These dependencies must be added to a project that wants to use JSON for configuration:
-Sorry this is very late reply.
The easiest way i have found to delete any row (and all other rows through iteration) is this
$('#rowid','#tableid').remove();
The rest is easy.
You can use hidden frame, load the file in there and parse its contents.
HTML:
<iframe id="frmFile" src="test.txt" onload="LoadFile();" style="display: none;"></iframe>
JavaScript:
<script type="text/javascript">
function LoadFile() {
var oFrame = document.getElementById("frmFile");
var strRawContents = oFrame.contentWindow.document.body.childNodes[0].innerHTML;
while (strRawContents.indexOf("\r") >= 0)
strRawContents = strRawContents.replace("\r", "");
var arrLines = strRawContents.split("\n");
alert("File " + oFrame.src + " has " + arrLines.length + " lines");
for (var i = 0; i < arrLines.length; i++) {
var curLine = arrLines[i];
alert("Line #" + (i + 1) + " is: '" + curLine + "'");
}
}
</script>
Note: in order for this to work in Chrome browser, you should start it with the --allow-file-access-from-files flag. credit.
Had to put the url in quotes for it work
npm install "https://github.com/shakacode/bootstrap-loader.git#v1" --save
// Get calendar set to the current date and time
Calendar cal = Calendar.getInstance();
// Set time of calendar to 18:00
cal.set(Calendar.HOUR_OF_DAY, 18);
cal.set(Calendar.MINUTE, 0);
cal.set(Calendar.SECOND, 0);
cal.set(Calendar.MILLISECOND, 0);
// Check if current time is after 18:00 today
boolean afterSix = Calendar.getInstance().after(cal);
if (afterSix) {
System.out.println("Go home, it's after 6 PM!");
}
else {
System.out.println("Hello!");
}
For anyone who came here looking for how to get the true accordion effect and only allow one row to be expanded at a time, you can add an event handler for show.bs.collapse like so:
$('.collapse').on('show.bs.collapse', function () {
$('.collapse.in').collapse('hide');
});
I modified this example to do so here: http://jsfiddle.net/QLfMU/116/
I will do it as
git format-patch branch_old..branch_new file
this will produce a patch for the file.
Apply patch at target branch_old
git am blahblah.patch
IsNothing()
Here are 4 reasons from the article IsNothing() VS Is Nothing
Most importantly, IsNothing(object)
has everything passed to it as an object, even value types! Since value types cannot be Nothing
, it’s a completely wasted check.
Take the following example:
Dim i As Integer
If IsNothing(i) Then
' Do something
End If
This will compile and run fine, whereas this:
Dim i As Integer
If i Is Nothing Then
' Do something
End If
Will not compile, instead the compiler will raise the error:
'Is' operator does not accept operands of type 'Integer'.
Operands must be reference or nullable types.
IsNothing(object)
is actually part of part of the Microsoft.VisualBasic.dll
.
This is undesirable as you have an unneeded dependency on the VisualBasic library.
Its slow - 33.76% slower in fact (over 1000000000 iterations)!
Perhaps personal preference, but IsNothing()
reads like a Yoda Condition. When you look at a variable you're checking it's state, with it as the subject of your investigation.
i.e. does it do x? --- NOT Is x
ing a property of it?
So I think If a IsNot Nothing
reads better than If Not IsNothing(a)
We are allowed to define a synonym for the type so we can create our own "standard".
On a machine in which sizeof(int) == 4, we can define:
typedef int int32;
int32 i;
int32 j;
...
So when we transfer the code to a different machine where actually the size of long int is 4, we can just redefine the single occurrence of int.
typedef long int int32;
int32 i;
int32 j;
...
No need to find
. If you are just looking for a pattern within a specific directory, this should suffice:
grep -hn FOO /your/path/*.bar
Where -h
is the parameter to hide the filename, as from man grep
:
-h, --no-filename
Suppress the prefixing of file names on output. This is the default when there is only one file (or only standard input) to search.
Note that you were using
-H, --with-filename
Print the file name for each match. This is the default when there is more than one file to search.
function shuffle(maxElements) {
//create ordered array : 0,1,2,3..maxElements
for (var temArr = [], i = 0; i < maxElements; i++) {
temArr[i] = i;
}
for (var finalArr = [maxElements], i = 0; i < maxElements; i++) {
//remove rundom element form the temArr and push it into finalArrr
finalArr[i] = temArr.splice(Math.floor(Math.random() * (maxElements - i)), 1)[0];
}
return finalArr
}
I guess this method will solve the issue with the probabilities, only limited by random numbers generator.
Also echo json_encode($dataobject);
might be helpful
It is actually quite easy to do this, if you are using android.support.v7
library.
Declare a menu item
<item android:id="@+id/action_search"
android:title="Search"
android:icon="@drawable/abc_ic_search_api_mtrl_alpha"
app:showAsAction="ifRoom|collapseActionView"
app:actionViewClass="android.support.v7.widget.SearchView" />
Extend AppCompatActivity
and in the onCreateOptionsMenu
setup the SearchView.
import android.support.v7.widget.SearchView;
...
public class YourActivity extends AppCompatActivity {
...
@Override
public boolean onCreateOptionsMenu(Menu menu) {
getMenuInflater().inflate(R.menu.menu_home, menu);
// Retrieve the SearchView and plug it into SearchManager
final SearchView searchView = (SearchView) MenuItemCompat.getActionView(menu.findItem(R.id.action_search));
SearchManager searchManager = (SearchManager) getSystemService(SEARCH_SERVICE);
searchView.setSearchableInfo(searchManager.getSearchableInfo(getComponentName()));
return true;
}
...
}
blur event: when the element loses focus.
focusout event: when the element, or any element inside of it, loses focus.
As there is nothing inside the filter element, both blur and focusout will work in this case.
$(function() {
$('#filter').blur(function() {
$('#options').hide();
});
})
jsfiddle with blur: http://jsfiddle.net/yznhb8pc/
$(function() {
$('#filter').focusout(function() {
$('#options').hide();
});
})
jsfiddle with focusout: http://jsfiddle.net/yznhb8pc/1/
This error is cause by security clutches between the web application and your java. To resolve it, look into your java setting under control panel. Move the security level to a medium.
To restrict access on this file /phpmyadmin/config.inc.php and he will work.
Simple tape this : sudo chmod 750 /phpmyadmin/config.inc.php
!
This should work
function updatePostID(val)
{
document.getElementById('PostID').value = val;
//and probably call document.forms[0].submit();
}
Then have a hidden field or other control for the PostID
@Html.Hidden("PostID", Model.addcomment.PostID)
//OR
@Html.HiddenFor(model => model.addcomment.PostID)
If you are running via the IDE, running as administrator should help. To do this locate the Visual Studio 2008/10 application icon, right click it and select "Run as administrator"
You could also use function exposed by the axes object of the scatter plot
scatter = plt.scatter(x, y)
ax = scatter.axes
ax.invert_xaxis()
ax.invert_yaxis()
You can force the case sensitive, casting to a varbinary like that:
SELECT * FROM myTable
WHERE convert(varbinary, myField) = convert(varbinary, 'sOmeVal')
simple * rawurlencode the path - path is the part before the "?" - spaces must be encoded as %20 * urlencode the query string - Query string is the part after the "?" -spaces are better encoded as "+" = rawurlencode is more compatible generally
You can manage it with a double cast :
@SuppressWarnings("unchecked")
Class<List<Foo>> cls = (Class<List<Foo>>)(Object)List.class
If you try to check angular version in the browser, for me only this worked Ctrl+Shift+i and paste below command in console:
document.querySelector('[ng-version]').getAttribute('ng-version')
ex:
You can get it in the following manner:
NSInteger row;
NSArray *repeatPickerData;
UIPickerView *repeatPickerView;
row = [repeatPickerView selectedRowInComponent:0];
self.strPrintRepeat = [repeatPickerData objectAtIndex:row];
Simply use \1
instead of $1
:
In [1]: import re
In [2]: method = 'images/:id/huge'
In [3]: re.sub(r'(:[a-z]+)', r'<span>\1</span>', method)
Out[3]: 'images/<span>:id</span>/huge'
Also note the use of raw strings (r'...'
) for regular expressions. It is not mandatory but removes the need to escape backslashes, arguably making the code slightly more readable.
This is an oldie, and there are a few solutions out there, but I came up with a shorter and simpler formula than any other I encountered, and it might be useful to anyone passing by.
I have named the colors list Colors
(A2:A7), and the array formula put in cell C2 is this (fixed):
=IFERROR(INDEX(Colors,MATCH(SUM(COUNTIF(C$1:C1,Colors)),COUNTIF(Colors,"<"&Colors),0)),"")
Use Ctrl+Shift+Enter
to enter the formula in C2, and copy C2 down to C3:C7.
Explanation with sample data {"red"; "blue"; "red"; "green"; "blue"; "black"}:
COUNTIF(Colors,"<"&Colors)
returns an array (#1) with the count of values that are smaller then each item in the data {4;1;4;3;1;0} (black=0 items smaller, blue=1 item, red=4 items). This can be translated to a sort value for each item.COUNTIF(C$1:C...,Colors)
returns an array (#2) with 1 for each data item that is already in the sorted result. In C2 it returns {0;0;0;0;0;0} and in C3 {0;0;0;0;0;1} because "black" is first in the sort and last in the data. In C4 {0;1;0;0;1;1} it indicates "black" and all the occurrences of "blue" are already present.SUM
returns the k-th sort value, by counting all the smaller values occurrences that are already present (sum of array #2).MATCH
finds the first index of the k-th sort value (index in array #1).IFERROR
is only to hide the #N/A
error in the bottom cells, when the sorted unique list is complete.To know how many unique items you have you can use this regular formula:
=SUM(IF(FREQUENCY(COUNTIF(Colors,"<"&Colors),COUNTIF(Colors,"<"&Colors)),1))
MySQL socket is located, in general, in /tmp/mysql.sock
or /var/mysql/mysql.sock
, but probably PHP looks in the wrong place.
Check where is your socket with:
sudo /usr/libexec/locate.updatedb
When the updatedb is terminated:
locate mysql.sock
Then locate your php.ini:
php -i | grep php.ini
this will output something like:
Configuration File (php.ini) Path => /opt/local/etc/php54
Loaded Configuration File => /opt/local/etc/php54/php.ini
Edit your php.ini
sudo vim /opt/local/etc/php54/php.ini
Change the lines:
pdo_mysql.default_socket=/tmp/mysql.sock
mysql.default_socket=/tmp/mysql.sock
mysqli.default_socket = /tmp/mysql.sock
where /tmp/mysql.sock is the path to your socket.
Save your modifications and exit ESC + SHIFT: x
Restart Apache
sudo apachectl stop
sudo apachectl start
This is a FAQ. You can put //NOSONAR
on the line triggering the warning. I prefer using the FindBugs mechanism though, which consists in adding the @SuppressFBWarnings annotation:
@edu.umd.cs.findbugs.annotations.SuppressFBWarnings(
value = "NAME_OF_THE_FINDBUGS_RULE_TO_IGNORE",
justification = "Why you choose to ignore it")
This should work:
int hh, mm, ss;
struct tm when = {0};
sscanf_s(date, "%d:%d:%d", &hh, &mm, &ss);
when.tm_hour = hh;
when.tm_min = mm;
when.tm_sec = ss;
time_t converted;
converted = mktime(&when);
Modify as needed.
Decode it with the unicode-escape
codec:
>>> a="Hello\u2026"
>>> a.decode('unicode-escape')
u'Hello\u2026'
>>> print _
Hello…
This is because for a non-unicode string the \u2026
is not recognised but is instead treated as a literal series of characters (to put it more clearly, 'Hello\\u2026'
). You need to decode the escapes, and the unicode-escape
codec can do that for you.
Note that you can get unicode
to recognise it in the same way by specifying the codec argument:
>>> unicode(a, 'unicode-escape')
u'Hello\u2026'
But the a.decode()
way is nicer.
I've found that binding an element.click in a function that happens more than once will queue it so next time you click it, it will trigger as many times as the binding function was executed. Newcomer mistake probably on my end but I hope it helps. TL,DR: Make sure you bind all clicks on a setup function that only happens once.
Forget browser and try CLI. HTTPie is great tool!
CLI http clients:
If you insist on browser extension then:
Chrome:
Firefox:
For the following statement shared by Alex Booker in their answer
When the compiler encounters an expression-bodied property member, it essentially converts it to a getter like this:
Please see the following screenshot, it shows how this statement (using SharpLab link)
public string APIBasePath => Configuration.ToolsAPIBasePath;
converts to
public string APIBasePath
{
get
{
return Configuration.ToolsAPIBasePath;
}
}
writelines
expects an iterable of stringswrite
expects a single string. line1 + "\n" + line2
merges those strings together into a single string before passing it to write
.
Note that if you have many lines, you may want to use "\n".join(list_of_lines)
.
From my understanding of the Apple documentation, a selector represents the name of the method that you want to call. The nice thing about selectors is you can use them in cases where the exact method to be called varies. As a simple example, you can do something like:
SEL selec;
if (a == b) {
selec = @selector(method1)
}
else
{
selec = @selector(method2)
};
[self performSelector:selec];
borderColor on any view(or UIView Subclass) could also be set using storyboard with a little bit of coding and this approach could be really handy if you're setting border color on multiple UI Objects.
Below are the steps how to achieve it,
P.S: Remember, Categories can't have stored properties. 'borderUIColor' is used as a calculated property, just as a reference to achieve what we're focusing on.
Please have a look at the below code sample;
Objective C:
Interface File:
#import <QuartzCore/QuartzCore.h>
#import <UIKit/UIKit.h>
@interface CALayer (BorderProperties)
// This assigns a CGColor to borderColor.
@property (nonatomic, assign) UIColor* borderUIColor;
@end
Implementation File:
#import "CALayer+BorderProperties.h"
@implementation CALayer (BorderProperties)
- (void)setBorderUIColor:(UIColor *)color {
self.borderColor = color.CGColor;
}
- (UIColor *)borderUIColor {
return [UIColor colorWithCGColor:self.borderColor];
}
@end
Swift 2.0:
extension CALayer {
var borderUIColor: UIColor {
set {
self.borderColor = newValue.CGColor
}
get {
return UIColor(CGColor: self.borderColor!)
}
}
}
And finally go to your storyboard/XIB, follow the remaining steps;
You've to set layer.borderWidth property value to at least 1 to see the border color.
Build and Run. Happy Coding. :)
try this:
import sys
sys.argv = ['arg1', 'arg2']
execfile('abc.py')
Note that when abc.py
finishes, control will be returned to the calling program. Note too that abc.py
can call quit()
if indeed finished.
I have a similar problem, but now I know the reason.
After we use git init
, we should add a remote repository using
git remote add name url
Pay attention to the word name
, if we change it to origin
, then this problem will not happen.
Of course, if we change it to py
, then using git pull py branch
and git push py branch
every time you pull and push something will also be OK.
Delete these 3 files present in your local at path C:\ProgramData\Oracle\Java\javapath
java.exe
javaw.exe
javaws.exe
This solved the issue for me :)
But if one has to substitute, then the following thing works:
:%s/\n/\r\|\-\r/g
In the above, every next line is substituted with next line, and then |-
and again a new line. This is used in wiki tables.
If the text is as follows:
line1
line2
line3
It is changed to
line1
|-
line2
|-
line3
User Konrad Rudolph advocates for DirectCast() in Stack Overflow question "Hidden Features of VB.NET".
If JDK installed but still not working.
In Eclipse follow below steps:- Window --> Preference --> Installed JREs -->Change path of JRE to JDK(add).
If you are using jQuery:
$.inArray(5 + 5, [ "8", "9", "10", 10 + "" ]);
For more information: http://api.jquery.com/jQuery.inArray/
Since you are interested in catching network related errors and HTTP errors, the following provides a better approach:
function curl_error_test($url) {
$ch = curl_init();
curl_setopt($ch, CURLOPT_URL, $url);
curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
$responseBody = curl_exec($ch);
/*
* if curl_exec failed then
* $responseBody is false
* curl_errno() returns non-zero number
* curl_error() returns non-empty string
* which one to use is up too you
*/
if ($responseBody === false) {
return "CURL Error: " . curl_error($ch);
}
$responseCode = curl_getinfo($ch, CURLINFO_HTTP_CODE);
/*
* 4xx status codes are client errors
* 5xx status codes are server errors
*/
if ($responseCode >= 400) {
return "HTTP Error: " . $responseCode;
}
return "No CURL or HTTP Error";
}
Tests:
curl_error_test("http://expamle.com"); // CURL Error: Could not resolve host: expamle.com
curl_error_test("http://example.com/whatever"); // HTTP Error: 404
curl_error_test("http://example.com"); // No CURL or HTTP Error
return or return false are not the same as continue. If the loop is inside a function the remainder of the function will not execute as you would expect with a true "continue".
Stack corruptions ususally caused by buffer overflows. You can defend against them by programming defensively.
Whenever you access an array, put an assert before it to ensure the access is not out of bounds. For example:
assert(i + 1 < N);
assert(i < N);
a[i + 1] = a[i];
This makes you think about array bounds and also makes you think about adding tests to trigger them if possible. If some of these asserts can fail during normal use turn them into a regular if
.
It seems to be a bug, it work for all input type that aren't textbox (checkboxes, radio,...)
There is a quick workaround that will work.
<div data-tip="This is the text of the tooltip2">
<input type="text" name="test" value="44"/>
</div>
Like @Exceptyon pointed out, this function is 'relative' to the values you're comparing. The Epsilon * abs(x)
measure will scale based on the value of x, so that you'll get a comparison result as accurately as epsilon
, irrespective of the range of values in x or y.
If you're comparing zero(y
) to another really small value(x
), say 1e-8, abs(x-y) = 1e-8
will still be much larger than epsilon *abs(x) = 1e-13
. So unless you're dealing with extremely small number that can't be represented in a double type, this function should do the job and will match zero only against +0
and -0
.
The function seems perfectly valid for zero comparison. If you're planning to use it, I suggest you use it everywhere there're floats involved, and not have special cases for things like zero, just so that there's uniformity in the code.
ps: This is a neat function. Thanks for pointing to it.
IFS=', ' read -r -a array <<< "$string"
Note that the characters in $IFS
are treated individually as separators so that in this case fields may be separated by either a comma or a space rather than the sequence of the two characters. Interestingly though, empty fields aren't created when comma-space appears in the input because the space is treated specially.
To access an individual element:
echo "${array[0]}"
To iterate over the elements:
for element in "${array[@]}"
do
echo "$element"
done
To get both the index and the value:
for index in "${!array[@]}"
do
echo "$index ${array[index]}"
done
The last example is useful because Bash arrays are sparse. In other words, you can delete an element or add an element and then the indices are not contiguous.
unset "array[1]"
array[42]=Earth
To get the number of elements in an array:
echo "${#array[@]}"
As mentioned above, arrays can be sparse so you shouldn't use the length to get the last element. Here's how you can in Bash 4.2 and later:
echo "${array[-1]}"
in any version of Bash (from somewhere after 2.05b):
echo "${array[@]: -1:1}"
Larger negative offsets select farther from the end of the array. Note the space before the minus sign in the older form. It is required.
To create multiple sub-folders
mkdir -p parentfolder/{subfolder1,subfolder2,subfolder3}
I think your issue is that Range("H18")
doesn't contain a formula. Also, you could make your code more efficient by eliminating x
. Instead, change your code to
Range("H18").GoalSeek Goal:=Range("H32").Value, ChangingCell:=Range("G18")
The steps to apply a theme are fairly simple. To really understand how everything works together, you'll need to understand what the ASP.NET MVC 5 template is providing out of the box and how you can customize it for your needs.
Note: If you have a basic understanding of how the MVC 5 template works, scroll down to the theming section.
This walk-through goes over how to create an MVC 5 project and what's going on under the hood. See all the features of MVC 5 Template in this blog.
Create a new project. Under Templates Choose Web > ASP.NET Web Application. Enter a name for your project and click OK.
On the next wizard, choose MVC and click OK. This will apply the MVC 5 template.
The MVC 5 template creates an MVC application that uses Bootstrap to provide responsive design and theming features. Under the hood, the template includes a bootstrap 3.* nuget package that installs 4 files: bootstrap.css
, bootstrap.min.css
, bootstrap.js
, and bootstrap.min.js
.
Bootstrap is bundled in your application by using the Web Optimization feature. Inspect Views/Shared/_Layout.cshtml
and look for
@Styles.Render("~/Content/css")
and
@Scripts.Render("~/bundles/bootstrap")
These two paths refer to bundles set up in App_Start/BundleConfig.cs
:
bundles.Add(new ScriptBundle("~/bundles/bootstrap").Include(
"~/Scripts/bootstrap.js",
"~/Scripts/respond.js"));
bundles.Add(new StyleBundle("~/Content/css").Include(
"~/Content/bootstrap.css",
"~/Content/site.css"));
This is what makes it possible to run your application without any configuring up front. Try running your project now.
This walk-through covers how to apply bootstrap themes in an MVC 5 project
css
of the theme you'd like to apply. For this example, I'll be using Bootswatch's Flatly. Include the downloaded flatly.bootstrap.css
and flatly.bootstrap.min.css
in the Content
folder (be sure to Include in Project as well).Open App_Start/BundleConfig.cs
and change the following:
bundles.Add(new StyleBundle("~/Content/css").Include(
"~/Content/bootstrap.css",
"~/Content/site.css"));
to include your new theme:
bundles.Add(new StyleBundle("~/Content/css").Include(
"~/Content/flatly.bootstrap.css",
"~/Content/site.css"));
If you're using the default _Layout.cshtml
included in the MVC 5 template, you can skip to step 4. If not, as a bare minimum, include these two line in your layout along with your Bootstrap HTML template:
In your <head>
:
@Styles.Render("~/Content/css")
Last line before closing </body>
:
@Scripts.Render("~/bundles/bootstrap")
Try running your project now. You should see your newly created application now using your theme.
Check out this awesome 30 day walk-through guide by James Chambers for more information, tutorials, tips and tricks on how to use Twitter Bootstrap with ASP.NET MVC 5.
Self invoked function in javascript:
A self-invoking expression is invoked (started) automatically, without being called. A self-invoking expression is invoked right after its created. This is basically used for avoiding naming conflict as well as for achieving encapsulation. The variables or declared objects are not accessible outside this function. For avoiding the problems of minimization(filename.min) always use self executed function.
You need the Microsoft.AspNet.WebApi.Core package.
You can see it in the .csproj file:
<Reference Include="System.Web.Http, Version=5.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35, processorArchitecture=MSIL">
<SpecificVersion>False</SpecificVersion>
<HintPath>..\packages\Microsoft.AspNet.WebApi.Core.5.0.0\lib\net45\System.Web.Http.dll</HintPath>
</Reference>
In the old days, when we could assume that most computers used ASCII, we would just do
int i = c[0] - '0';
But in these days of Unicode, it's not a good idea. It was never a good idea if your code had to run on a non-ASCII computer.
Edit: Although it looks hackish, evidently it is guaranteed by the standard to work. Thanks @Earwicker.
This time you found your problem. If next time you are less lucky and cannot figure it out, you can use plan freezing and stop worrying about wrong execution plan.
You should use a with statement to qualify both your Rows
and Columns
counts. This will prevent any errors while working with older pre 2007 and newer 2007 Excel Workbooks.
Last Column
With Sheets("Sheet2")
.Cells(1, .Columns.Count).End(xlToLeft).Column
End With
Last Row
With Sheets("Sheet2")
.Range("A" & .Rows.Count).End(xlUp).Row
End With
Or
With Sheets("Sheet2")
.Cells(.Rows.Count, 1).End(xlUp).Row
End With
Try this:
With xlApp.ActiveSheet.Pictures.Insert(PicPath)
With .ShapeRange
.LockAspectRatio = msoTrue
.Width = 75
.Height = 100
End With
.Left = xlApp.ActiveSheet.Cells(i, 20).Left
.Top = xlApp.ActiveSheet.Cells(i, 20).Top
.Placement = 1
.PrintObject = True
End With
It's better not to .select anything in Excel, it is usually never necessary and slows down your code.
Using javascript seems to be unnecessary if you choose CSS3.
By using :before
selector, you can do this in two lines of CSS. (no script involved).
Another advantage of this approach is that it does not rely on <label>
tag and works even it is missing.
Note: in browsers without CSS3 support, checkboxes will look normal. (backward compatible).
input[type=checkbox]:before { content:""; display:inline-block; width:12px; height:12px; background:red; }
input[type=checkbox]:checked:before { background:green; }?
You can see a demo here: http://jsfiddle.net/hqZt6/1/
and this one with images:
You can convert the IEnumerable to IQueryable.
items = items.AsQueryable().OrderBy("Name ASC");
My solution, as answered here, is to use:
var json = require('./data.json'); //with path
The file is loaded only once, further requests use cache.
edit To avoid caching, here's the helper function from this blogpost given in the comments, using the fs
module:
var readJson = (path, cb) => {
fs.readFile(require.resolve(path), (err, data) => {
if (err)
cb(err)
else
cb(null, JSON.parse(data))
})
}
Try using String.getBytes(). It returns a byte[] representing string data. Example:
String data = "sample data";
byte[] byteData = data.getBytes();
I've had this sort of problem.....
The solve: cmd
/ powershell
run as ADMINISTRATOR! I always forget.
Notice: In powershell
, you need to put .\
for example:
.\httpd -k shutdown .\httpd -k stop .\httpd -k uninstall
Result: Removing the apache2.4
service The Apache2.4
service has been removed successfully.
NSPredicate
is nextstep's way of constructing condition to filter a collection (NSArray
, NSSet
, NSDictionary
).
For example consider two arrays arr
and filteredarr
:
NSPredicate *predicate = [NSPredicate predicateWithFormat:@"SELF contains[c] %@",@"c"];
filteredarr = [NSMutableArray arrayWithArray:[arr filteredArrayUsingPredicate:predicate]];
the filteredarr will surely have the items that contains the character c alone.
to make it easy to remember those who little sql background it is
*--select * from tbl where column1 like '%a%'--*
1)select * from tbl --> collection
2)column1 like '%a%' --> NSPredicate *predicate = [NSPredicate predicateWithFormat:@"SELF contains[c] %@",@"c"];
3)select * from tbl where column1 like '%a%' -->
[NSMutableArray arrayWithArray:[arr filteredArrayUsingPredicate:predicate]];
I hope this helps
Why not use an Excel formula to determine the rows? For instance, if you are looking for how many cells contain data in Column A use this:
=COUNTIFS(A:A,"<>")
You can replace <> with any value to get how many rows have that value in it.
=COUNTIFS(A:A,"2008")
This can be used for finding filled cells in a row too.
change class using jquery
try this
$('#selector_id').attr('class','new class');
you can also set any attribute using this query
$('#selector_id').attr('Attribute Name','Attribute Value');
Abstract Data type is a mathematical module that includes data with various operations. Implementation details are hidden and that's why it is called abstract. Abstraction allowed you to organise the complexity of the task by focusing on logical properties of data and actions.
^[0-9]$
...is a regular expression matching any single digit, so 1 will return true but 123 will return false.
If you add the * quantifier,
^[0-9]*$
the expression will match arbitrary length strings of digits and 123 will return true. (123f will still return false).
Be aware that technically an empty string is a 0-length string of digits, and so it will return true using ^[0-9]*$ If you want to only accept strings containing 1 or more digits, use + instead of *
^[0-9]+$
As the many others have pointed out, there are more than a few ways to achieve this, but I felt like it was appropriate to point out that the code in the original question only requires a single additional character to work as intended.
How about Freebase? I think they have an API available, too.
This example uses jquery-cookie
Check if the cookie exists and has not expired - if either of those fails, then show the popup and set the cookie (Semi pseudo code):
if($.cookie('popup') != 'seen'){
$.cookie('popup', 'seen', { expires: 365, path: '/' }); // Set it to last a year, for example.
$j("#popup").delay(2000).fadeIn();
$j('#popup-close').click(function(e) // You are clicking the close button
{
$j('#popup').fadeOut(); // Now the pop up is hiden.
});
$j('#popup').click(function(e)
{
$j('#popup').fadeOut();
});
};
Here is an example. Imagine that you are going to put the files and directory names (under the current folder) to an array and count its items. The script would be like;
my_array=( `ls` )
my_array_length=${#my_array[@]}
echo $my_array_length
Or, you can iterate over this array by adding the following script:
for element in "${my_array[@]}"
do
echo "${element}"
done
Please note that this is the core concept and the input is considered to be sanitized before, i.e. removing extra characters, handling empty Strings, and etc. (which is out of the topic of this thread).
Private tmr As System.Windows.Forms.Timer
Private Sub TestExcel() Handles Button1.Click
'// Initial data: SQL Server table with 6 columns and 293000 rows.
'// Data table holding all data
Dim dt As New DataTable("F161")
'// Create connection
Dim conn As New SqlConnection("Server=MYSERVER;Database=Test;Trusted_Connection=Yes;")
Dim fAdapter As New SqlDataAdapter With
{
.SelectCommand = New SqlCommand($"SELECT * FROM dbo.MyTable", conn)
}
'// Fill DataTable
fAdapter.Fill(dt)
'// Create Excel application
Dim xlApp As New Excel.Application With {.Visible = True}
'// Temporarily disable screen updating
xlApp.ScreenUpdating = False
'// Create brand new workbook
Dim xlBook As Excel.Workbook = xlApp.Workbooks.Add()
Dim xlSheet As Excel.Worksheet = DirectCast(xlBook.Sheets(1), Excel.Worksheet)
'// Get number of rows
Dim rows_count = dt.Rows.Count
'// Get number of columns
Dim cols_count = dt.Columns.Count
'// Here 's the core idea: after receiving data
'// you need to create an array and transfer it to sheet.
'// Why array?
'// Because it's the fastest way to transfer data to Excel's sheet.
'// So, we have two tasks:
'// 1) Create array
'// 2) Transfer array to sheet
'// =========================================================
'// TASK 1: Create array
'// =========================================================
'// In order to create array, we need to know that
'// Excel's Range object expects 2-D array whose lower bounds
'// of both dimensions start from 1.
'// This means you can't use C# array.
'// You need to manually create such array.
'// Since we already calculated number of rows and columns,
'// we can use these numbers in creating array.
Dim arr = Array.CreateInstance(GetType(Object), {rows_count, cols_count}, {1, 1})
'// Fill array
For r = 0 To rows_count - 1
For c = 0 To cols_count - 1
arr(r + 1, c + 1) = dt.Rows(r)(c)
Next
Next
'// =========================================================
'// TASK 2: Transfer array to sheet
'// =========================================================
'// Now we need to transfer array to sheet.
'// So, how transfer array to sheet fast?
'//
'// THE FASTEST WAY TO TRANSFER DATA TO SHEET IS TO ASSIGN ARRAY TO RANGE.
'// We could, of course, hard-code values, but Resize property
'// makes this work a breeze:
xlSheet.Range("A1").Resize.Resize(rows_count, cols_count).Value = arr
'// If we decide to dump data by iterating over array,
'// it will take LOTS of time.
'// For r = 1 To rows_count
'// For c = 1 To cols_count
'// xlSheet.Cells(r, c) = arr(r, c)
'// Next
'// Next
'// Here are time results:
'// 1) Assigning array to Range: 3 seconds
'// 2) Iterating over array: 45 minutes
'// Turn updating on
xlApp.ScreenUpdating = True
xlApp = Nothing
xlBook = Nothing
xlSheet = Nothing
'// Here we have another problem:
'// creating array took lots of memory (about 150 MB).
'// Using 'GC.Collect()', by unknown reason, doesn't help here.
'// However, if you run GC.Collect() AFTER this procedure is finished
'// (say, by pressing another button and calling another procedure),
'// then the memory is cleaned up.
'// I was wondering how to avoid creating some extra button to just release memory,
'// so I came up with the idea to use timer to call GC.
'// After 2 seconds GC collects all generations.
'// Do not forget to dispose timer since we need it only once.
tmr = New Timer()
AddHandler tmr.Tick,
Sub()
GC.Collect()
GC.WaitForPendingFinalizers()
GC.WaitForFullGCComplete()
tmr.Dispose()
End Sub
tmr.Interval = TimeSpan.FromSeconds(2).TotalMilliseconds()
tmr.Start()
End Sub
Use glutStrokeCharacter(GLUT_STROKE_ROMAN, myCharString)
.
An example: A STAR WARS SCROLLER.
#include <windows.h>
#include <string.h>
#include <GL\glut.h>
#include <iostream.h>
#include <fstream.h>
GLfloat UpwardsScrollVelocity = -10.0;
float view=20.0;
char quote[6][80];
int numberOfQuotes=0,i;
//*********************************************
//* glutIdleFunc(timeTick); *
//*********************************************
void timeTick(void)
{
if (UpwardsScrollVelocity< -600)
view-=0.000011;
if(view < 0) {view=20; UpwardsScrollVelocity = -10.0;}
// exit(0);
UpwardsScrollVelocity -= 0.015;
glutPostRedisplay();
}
//*********************************************
//* printToConsoleWindow() *
//*********************************************
void printToConsoleWindow()
{
int l,lenghOfQuote, i;
for( l=0;l<numberOfQuotes;l++)
{
lenghOfQuote = (int)strlen(quote[l]);
for (i = 0; i < lenghOfQuote; i++)
{
//cout<<quote[l][i];
}
//out<<endl;
}
}
//*********************************************
//* RenderToDisplay() *
//*********************************************
void RenderToDisplay()
{
int l,lenghOfQuote, i;
glTranslatef(0.0, -100, UpwardsScrollVelocity);
glRotatef(-20, 1.0, 0.0, 0.0);
glScalef(0.1, 0.1, 0.1);
for( l=0;l<numberOfQuotes;l++)
{
lenghOfQuote = (int)strlen(quote[l]);
glPushMatrix();
glTranslatef(-(lenghOfQuote*37), -(l*200), 0.0);
for (i = 0; i < lenghOfQuote; i++)
{
glColor3f((UpwardsScrollVelocity/10)+300+(l*10),(UpwardsScrollVelocity/10)+300+(l*10),0.0);
glutStrokeCharacter(GLUT_STROKE_ROMAN, quote[l][i]);
}
glPopMatrix();
}
}
//*********************************************
//* glutDisplayFunc(myDisplayFunction); *
//*********************************************
void myDisplayFunction(void)
{
glClear(GL_COLOR_BUFFER_BIT);
glLoadIdentity();
gluLookAt(0.0, 30.0, 100.0, 0.0, 0.0, 0.0, 0.0, 1.0, 0.0);
RenderToDisplay();
glutSwapBuffers();
}
//*********************************************
//* glutReshapeFunc(reshape); *
//*********************************************
void reshape(int w, int h)
{
glViewport(0, 0, w, h);
glMatrixMode(GL_PROJECTION);
glLoadIdentity();
gluPerspective(60, 1.0, 1.0, 3200);
glMatrixMode(GL_MODELVIEW);
}
//*********************************************
//* int main() *
//*********************************************
int main()
{
strcpy(quote[0],"Luke, I am your father!.");
strcpy(quote[1],"Obi-Wan has taught you well. ");
strcpy(quote[2],"The force is strong with this one. ");
strcpy(quote[3],"Alert all commands. Calculate every possible destination along their last known trajectory. ");
strcpy(quote[4],"The force is with you, young Skywalker, but you are not a Jedi yet.");
numberOfQuotes=5;
glutInitDisplayMode(GLUT_DOUBLE | GLUT_RGB | GLUT_DEPTH);
glutInitWindowSize(800, 400);
glutCreateWindow("StarWars scroller");
glClearColor(0.0, 0.0, 0.0, 1.0);
glLineWidth(3);
glutDisplayFunc(myDisplayFunction);
glutReshapeFunc(reshape);
glutIdleFunc(timeTick);
glutMainLoop();
return 0;
}
yourTextView.setTextColor(color);
Or, in your case: yourTextView.setTextColor(0xffbdbdbd);
For removing older versions of all installed gems, following 2 commands are useful:
gem cleanup --dryrun
Above command will preview what gems are going to be removed.
gem cleanup
Above command will actually remove them.
Also, this could make it works:
@{
Html.RenderPartial("your view", your_model, ViewData);
}
or
@{
Html.RenderPartial("your view", your_model);
}
For more information on RenderPartial and similar HTML helpers in MVC see this popular StackOverflow thread
In addition to @JBNizet's answer, my general use case for ifPresent
is to combine .isPresent()
and .get()
:
Old way:
Optional opt = getIntOptional();
if(opt.isPresent()) {
Integer value = opt.get();
// do something with value
}
New way:
Optional opt = getIntOptional();
opt.ifPresent(value -> {
// do something with value
})
This, to me, is more intuitive.
with bootstrap use class input-md = medium, input-lg = large, for more info see https://getbootstrap.com/docs/3.3/css/#forms-control-sizes
Just use the function plot
as follows
figure()
...
plot(t, a)
plot(t, b)
plot(t, c)
If you're on windows and using apache, maybe via WAMP or the Drupal stack installer, you can additionally download the git for windows package, which includes many useful linux command line tools, one of which is openssl.
The following command creates the self signed certificate and key needed for apache and works fine in windows:
openssl req -x509 -nodes -days 365 -newkey rsa:2048 -keyout privatekey.key -out certificate.crt
I started down this path because ESXi's wget is not compiled with SSL and I wanted to download an OVA from a vendor's website directly onto the ESXi host which is on the other side of the world.
I had to disable the firewall(lazy)/enable https out by editing the rules(proper)
created the python script:
import ssl
import shutil
import tempfile
import urllib.request
context = ssl._create_unverified_context()
dlurl='https://somesite/path/whatever'
with urllib.request.urlopen(durl, context=context) as response:
with open("file.ova", 'wb') as tmp_file:
shutil.copyfileobj(response, tmp_file)
ESXi libraries are kind of paired down but the open source weasel installer seemed to use urllib for https... so it inspired me to go down this path
I would highly recommend you use a very simple templating language such as Freemarker
In addition to the accepted answer, one other check is to make sure that you have the right reference to your entity package in sessionFactory.setPackagesToScan(...) while setting up your session factory.
If it's an object method, you need to pass the object to CallObjectMethod
:
jobject result = env->CallObjectMethod(obj, messageMe, jstr);
What you were doing was the equivalent of jstr.messageMe()
.
Since your is a void method, you should call:
env->CallVoidMethod(obj, messageMe, jstr);
If you want to return a result, you need to change your JNI signature (the ()V
means a method of void
return type) and also the return type in your Java code.
Since you want to pivot multiple columns of data, I would first suggest unpivoting the result
, score
and grade
columns so you don't have multiple columns but you will have multiple rows.
Depending on your version of SQL Server you can use the UNPIVOT function or CROSS APPLY. The syntax to unpivot the data will be similar to:
select ratio, col, value
from GRAND_TOTALS
cross apply
(
select 'result', cast(result as varchar(10)) union all
select 'score', cast(score as varchar(10)) union all
select 'grade', grade
) c(col, value)
See SQL Fiddle with Demo. Once the data has been unpivoted, then you can apply the PIVOT function:
select ratio = col,
[current ratio], [gearing ratio], [performance ratio], total
from
(
select ratio, col, value
from GRAND_TOTALS
cross apply
(
select 'result', cast(result as varchar(10)) union all
select 'score', cast(score as varchar(10)) union all
select 'grade', grade
) c(col, value)
) d
pivot
(
max(value)
for ratio in ([current ratio], [gearing ratio], [performance ratio], total)
) piv;
See SQL Fiddle with Demo. This will give you the result:
| RATIO | CURRENT RATIO | GEARING RATIO | PERFORMANCE RATIO | TOTAL |
|--------|---------------|---------------|-------------------|-----------|
| grade | Good | Good | Satisfactory | Good |
| result | 1.29400 | 0.33840 | 0.04270 | (null) |
| score | 60.00000 | 70.00000 | 50.00000 | 180.00000 |
There is only one way from what I am aware.
Have 2 images, first a jpeg with first frame(or whatever you want) of the gif and the actual gif.
Load the page with the jpeg in place and on mouse over replace the jpeg with the gif. You can preload the gifs if you want or if they are of big size show a loading while the gif is loading and then replace the jpeg with it.
If you whant it to bi linear as in have the gif play on mouse over, stop it on mouse out and then resume play from the frame you stopped, then this cannot be done with javascript+gif combo.
I recommend web storage. Example:
// Storing the data:
localStorage.setItem("variableName","Text");
// Receiving the data:
localStorage.getItem("variableName");
Just replace variable
with your variable name and text
with what you want to store. According to W3Schools, it's better than cookies.
I have a small tool where I can quickly run small test-cases in the browser and immediately get the results:
You can play with code and find out which technique is better in the tested browser.
Get the UDID from iTunes:
http://www.innerfence.com/howto/find-iphone-unique-device-identifier-udid
Once you have that:
Database is a collection of schemas and schema is a collection of tables. But in MySQL they use it the same way.
No, the correct join is:
inner join Employees m on e.mgr = m.EmpID;
You need to match the ManagerID for the current employee with the EmployeeID of the manager. Not with the ManagerID of the manager.
update
As noted by Andrey Gordeev:
You'd also need to add m.Ename
to your SELECT
query in order to get the name of the Manager in your result. Otherwise you'd only get the managerID.
Now with Ruby 2.3 you can use &.
operator ('lonely operator') to check for nil
at the same time as accessing a value.
@person&.spouse&.name
https://en.wikibooks.org/wiki/Ruby_Programming/Syntax/Operators#Other_operators
Use #try
instead so you don't have to keep checking for nil
.
http://api.rubyonrails.org/classes/Object.html#method-i-try
@person.try(:spouse).try(:name)
instead of
@person.spouse.name if @person && @person.spouse
You should pass @item.email
in quotes then it will be treated as string argument
<td><a href ="#" onclick="Getinfo('@item.email');" >6/16/2016 2:02:29 AM</a> </td>
Otherwise, it is treated as variable thus error is generated.
SELECT
DB_NAME (database_id) as [Database Name],
name as [Database File Name],
[Type] = CASE WHEN Type_Desc = 'ROWS' THEN 'Data File(s)'
WHEN Type_Desc = 'LOG' THEN 'Log File(s)'
ELSE Type_Desc END,
size*8/1024 as 'Size (MB)',
physical_name as [Database_File_Location]
FROM sys.master_files
ORDER BY 1,3
Output
Database Name Database File Name Type Size (MB) Database_File_Location
--------------------------- ------------------------------- ------------------- ----------- ---------------------------------------------------------------
AdventureWorksDW2017 AdventureWorksDW2017 Data File(s) 136 E:\MSSQL14.MSSQLSERVER\MSSQL\DATA\AdventureWorksDW2017.mdf
AdventureWorksDW2017 AdventureWorksDW2017_log Log File(s) 72 E:\MSSQL14.MSSQLSERVER\MSSQL\DATA\AdventureWorksDW2017_log.ldf
DBA_Admin DBA_Admin Data File(s) 8 E:\MSSQL14.MSSQLSERVER\MSSQL\DATA\DBA_Admin.mdf
DBA_Admin DBA_Admin_log Log File(s) 8 E:\MSSQL14.MSSQLSERVER\MSSQL\DATA\DBA_Admin_log.ldf
EventNotifications EventNotifications Data File(s) 8 E:\MSSQL14.MSSQLSERVER\MSSQL\DATA\EventNotifications.mdf
EventNotifications EventNotifications_log Log File(s) 8 E:\MSSQL14.MSSQLSERVER\MSSQL\DATA\EventNotifications_log.ldf
master master Data File(s) 4 E:\MSSQL14.MSSQLSERVER\MSSQL\DATA\master.mdf
master mastlog Log File(s) 2 E:\MSSQL14.MSSQLSERVER\MSSQL\DATA\mastlog.ldf
model modeldev Data File(s) 8 E:\MSSQL14.MSSQLSERVER\MSSQL\DATA\model.mdf
model modellog Log File(s) 8 E:\MSSQL14.MSSQLSERVER\MSSQL\DATA\modellog.ldf
msdb MSDBData Data File(s) 19 E:\MSSQL14.MSSQLSERVER\MSSQL\DATA\MSDBData.mdf
msdb MSDBLog Log File(s) 13 E:\MSSQL14.MSSQLSERVER\MSSQL\DATA\MSDBLog.ldf
tempdb temp2 Data File(s) 8 E:\MSSQL14.MSSQLSERVER\MSSQL\DATA\tempdb_mssql_2.ndf
tempdb temp3 Data File(s) 8 E:\MSSQL14.MSSQLSERVER\MSSQL\DATA\tempdb_mssql_3.ndf
tempdb temp4 Data File(s) 8 E:\MSSQL14.MSSQLSERVER\MSSQL\DATA\tempdb_mssql_4.ndf
tempdb tempdev Data File(s) 8 E:\MSSQL14.MSSQLSERVER\MSSQL\DATA\tempdb.mdf
tempdb templog Log File(s) 8 E:\MSSQL14.MSSQLSERVER\MSSQL\DATA\templog.ldf
You can use #stringify
from query string
import { stringify } from 'query-string';
fetch(`https://example.org?${stringify(params)}`)
These toolz are great for this kind of simple yet repetitive logic.
http://toolz.readthedocs.org/en/latest/api.html#toolz.dicttoolz.valmap
Gets you right where you want to be.
import toolz
def f(x):
return x+1
toolz.valmap(f, my_list)
You can use deleteDir()
as the last step of the pipeline Jenkinsfile (assuming you didn't change the working directory).
HTML5 provides Canvas.toDataURL(mimetype) which is implemented in Opera, Firefox, and Safari 4 beta. There are a number of security restrictions, however (mostly to do with drawing content from another origin onto the canvas).
So you don't need an additional library.
e.g.
<canvas id=canvas width=200 height=200></canvas>
<script>
window.onload = function() {
var canvas = document.getElementById("canvas");
var context = canvas.getContext("2d");
context.fillStyle = "green";
context.fillRect(50, 50, 100, 100);
// no argument defaults to image/png; image/jpeg, etc also work on some
// implementations -- image/png is the only one that must be supported per spec.
window.location = canvas.toDataURL("image/png");
}
</script>
Theoretically this should create and then navigate to an image with a green square in the middle of it, but I haven't tested.
Updates you make to the CTE will be cascaded to the source table.
I have had to guess at your schema slightly, but something like this should work.
;WITH T AS
( SELECT InvoiceNumber,
DocTotal,
SUM(Sale + VAT) OVER(PARTITION BY InvoiceNumber) AS NewDocTotal
FROM PEDI_InvoiceDetail
)
UPDATE T
SET DocTotal = NewDocTotal
Your first formulation, image_url('logo.png')
, is correct. If the image is found, it will generate the path /assets/logo.png
(plus a hash in production). However, if Rails cannot find the image that you named, it will fall back to /images/logo.png
.
The next question is: why isn't Rails finding your image? If you put it in app/assets/images/logo.png, then you should be able to access it by going to http://localhost:3000/assets/logo.png
.
If that works, but your CSS isn't updating, you may need to clear the cache. Delete tmp/cache/assets
from your project directory and restart the server (webrick, etc.).
If that fails, you can also try just using background-image: url(logo.png);
That will cause your CSS to look for files with the same relative path (which in this case is /assets).
>>> a = 'dogs'
>>> a.replace('dogs', 'dogs eat treats')
'dogs eat treats'
>>> print a
'dogs'
Immutable, isn't it?!
The variable change part has already been discussed.
function liReplace(replacement) {
$(".dropit-submenu li").each(function() {
var t = $(this);
t.html(t.html().replace(replacement, "*" + replacement + "*"));
t.children(":first").html(t.children(":first").html().replace(replacement, "*" +` `replacement + "*"));
t.children(":first").html(t.children(":first").html().replace(replacement + " ", ""));
alert(t.children(":first").text());
});
}
t.html(t.html()
t.children(":first")
Sample <a title="alpc" href="#">alpc</a>
Actually, forceUpdate()
is the only correct solution as setState()
might not trigger a re-render if additional logic is implemented in shouldComponentUpdate()
or when it simply returns false
.
Calling
forceUpdate()
will causerender()
to be called on the component, skippingshouldComponentUpdate()
. more...
setState()
will always trigger a re-render unless conditional rendering logic is implemented inshouldComponentUpdate()
. more...
forceUpdate()
can be called from within your component by this.forceUpdate()
Make sure you're not replacing the container containing the actual modal window when you're doing the AJAX request, because Bootstrap will not be able to find a reference to it when you try to close it. In your Ajax complete handler remove the modal and then replace the data.
If that doesn't work you can always force it to go away by doing the following:
$('#your-modal-id').modal('hide');
$('body').removeClass('modal-open');
$('.modal-backdrop').remove();
user = Product.where(email: /^#{email}$/i).first
You can create a RegExp
object to make it a bit more readable
str.replace(new RegExp('/'), 'foobar');
If you want to replace all of them add the "g"
flag
str.replace(new RegExp('/', 'g'), 'foobar');
Note that the mode of opening files is 'a' or some other have alphabet 'a' will also make error because of the overwritting.
pointer = open('makeaafile.txt', 'ab+')
tes = pickle.load(pointer, encoding='utf-8')
This is how you use bundle:
Bundle b = new Bundle();
b.putInt("id", id);
Fragment frag= new Fragment();
frag.setArguments(b);
retrieve value from bundle:
bundle = getArguments();
if (bundle != null) {
id = bundle.getInt("id");
}
You can set the datatable as a datasource to many elements.
For eg
gridView
repeater
datalist
etc etc
If you need to extract data from each row then you can use
table.rows[rowindex][columnindex]
or
if you know the column name
table.rows[rowindex][columnname]
If you need to iterate the table then you can either use a for loop or a foreach loop like
for ( int i = 0; i < table.rows.length; i ++ )
{
string name = table.rows[i]["columnname"].ToString();
}
foreach ( DataRow dr in table.Rows )
{
string name = dr["columnname"].ToString();
}
I wrote and released a Windows application that specifically solves the problem of comparing and merging XML files.
Project: Merge can perform two and three way comparisons and merges of any XML file (where two of the files are considered to be independent revisions of a common base file). You can instruct it to identify elements within the input files by attribute values, or the content of child elements, among other things.
It is fully controllable via the command line and can also generate text reports containing the differences between the files.
Why should LINQ be faster? It also uses loops internally.
Most of the times, LINQ will be a bit slower because it introduces overhead. Do not use LINQ if you care much about performance. Use LINQ because you want shorter better readable and maintainable code.