If you are targeting iOS7 and already have the image split into frames you can use animatedImageNamed:duration:
.
Let's say you are animating a spinner. Copy all of your frames into the project and name them as follows:
spinner-1.png
spinner-2.png
spinner-3.png
Then create the image via:
[UIImage animatedImageNamed:@"spinner-" duration:1.0f];
This method loads a series of files by appending a series of numbers to the base file name provided in the name parameter. For example, if the name parameter had ‘image’ as its contents, this method would attempt to load images from files with the names ‘image0’, ‘image1’ and so on all the way up to ‘image1024’. All images included in the animated image should share the same size and scale.
It depends on what type of machine/encoding generated your import file.
If you're getting it from an English or Western European version of Windows, your best bet is probably setting it to 'WIN1252'. If you are getting it from a different source, consult the list of character encodings here:
http://www.postgresql.org/docs/8.3/static/multibyte.html
If you're getting it from a Mac, you may have to run it through the "iconv" utility first to convert it from MacRoman to UTF-8.
Try closing and re-opening the file.
It is possible to get this error in eclipse when there is absolutely nothing wrong with the file location or package declaration. Try that before spending a lot of time trying these other solutions. Sometimes eclipse just gets confused. It's worked for me on a number of occasions. I credit the idea to Joshua Goldberg.
No, it is not okay to put a link
element in the body tag. See the specification (links to the HTML4.01 specs, but I believe it is true for all versions of HTML):
“This element defines a link. Unlike
A
, it may only appear in theHEAD
section of a document, although it may appear any number of times.”
Another php solution, but with PDO:
<?php
try {
$pdo = new PDO('mysql:host=localhost;dbname=dbname', 'root', 'password');
echo 'table dbname exists...';
}
catch (PDOException $e) {
die('dbname not found...');
}
If you want to view the versions of files a tag is pointing to, you can do a git checkout, though this puts your repository in “detached HEAD” state, which has some ill side effects:
$ git checkout 2.0.0
Note: checking out '2.0.0'.
You are in 'detached HEAD' state. You can look around, make experimental
changes and commit them, and you can discard any commits you make in this
state without impacting any branches by performing another checkout.
If you want to create a new branch to retain commits you create, you may
do so (now or later) by using -b with the checkout command again. Example:
git checkout -b <new-branch-name>
HEAD is now at 99ada87... Merge pull request #89 from schacon/appendix-final
$ git checkout 2.0-beta-0.1
Previous HEAD position was 99ada87... Merge pull request #89 from schacon/appendix-final
HEAD is now at df3f601... add atlas.json and cover image
In “detached HEAD” state, if you make changes and then create a commit, the tag will stay the same, but your new commit won’t belong to any branch and will be unreachable, except for by the exact commit hash. Thus, if you need to make changes—say you’re fixing a bug on an older version, for instance—you will generally want to create a branch:
$ git checkout -b version2 v2.0.0
Switched to a new branch 'version2'
If you do this and make a commit, your version2 branch will be slightly different than your v2.0.0 tag since it will move forward with your new changes, so do be careful.
Just update protractor:
npm install protractor@latest --save-dev
For the current Spring-Boot Version 1.5.3 the parameter is
spring.resources.static-locations
Update I configured
`spring.resources.static-locations=file:/opt/x/y/z/static``
and expected to get my index.html living in this folder when calling
http://<host>/index.html
This did not work. I had to include the folder name in the URL:
http://<host>/static/index.html
To hide arrows and cross in a "time" input :
#inputId::-webkit-outer-spin-button,
#inputId::-webkit-inner-spin-button,
#inputId::-webkit-clear-button{
-webkit-appearance: none;
margin: 0;
}
There is more than one library for working in C++ in Android programming:
I wouldn't have thought so.
If you have Visual Studio you could edit them through that. Some versions of Visual Studio has Crystal Reports shipped with them.
If not, you will have to find someone who has Crystal Reports and ask then nicely to amend them for you. Or buy Crystal Reports!
For large files, what I did was read the file line by line and read each line into an array. Then, once the array reached a certain size, append it to a new file.
for line in open("file.txt", "r"):
list.append(line)
if len(list) == 1000000:
output.writelines(list)
del list[:]
i was having the same issue
[PDOException] SQLSTATE[HY000] [2002] No such file or directory
[ErrorException] Warning: PDO::__construct(): [2002] No such file or directory (trying to connect via unix:///var/mysql/mysql.sock) in …htdocs/Symfony/vendor/doctrine-dbal/lib/Doctrine/DBAL/Driver/PDOConnection.php
So the solution is to make a symlink to the sock file thus resolving the issue. Do the following to resolve it:
$ sudo mkdir /private/var/mysql/
$ sudo ln -s /Applications/MAMP/tmp/mysql/mysql.sock /private/var/mysql/mysql.sock
I run into the same problem and wrote a little shared-memory utility class to work around it.
I'm using multiprocessing.RawArray
(lockfree), and also the access to the arrays is not synchronized at all (lockfree), be careful not to shoot your own feet.
With the solution I get speedups by a factor of approx 3 on a quad-core i7.
Here's the code: Feel free to use and improve it, and please report back any bugs.
'''
Created on 14.05.2013
@author: martin
'''
import multiprocessing
import ctypes
import numpy as np
class SharedNumpyMemManagerError(Exception):
pass
'''
Singleton Pattern
'''
class SharedNumpyMemManager:
_initSize = 1024
_instance = None
def __new__(cls, *args, **kwargs):
if not cls._instance:
cls._instance = super(SharedNumpyMemManager, cls).__new__(
cls, *args, **kwargs)
return cls._instance
def __init__(self):
self.lock = multiprocessing.Lock()
self.cur = 0
self.cnt = 0
self.shared_arrays = [None] * SharedNumpyMemManager._initSize
def __createArray(self, dimensions, ctype=ctypes.c_double):
self.lock.acquire()
# double size if necessary
if (self.cnt >= len(self.shared_arrays)):
self.shared_arrays = self.shared_arrays + [None] * len(self.shared_arrays)
# next handle
self.__getNextFreeHdl()
# create array in shared memory segment
shared_array_base = multiprocessing.RawArray(ctype, np.prod(dimensions))
# convert to numpy array vie ctypeslib
self.shared_arrays[self.cur] = np.ctypeslib.as_array(shared_array_base)
# do a reshape for correct dimensions
# Returns a masked array containing the same data, but with a new shape.
# The result is a view on the original array
self.shared_arrays[self.cur] = self.shared_arrays[self.cnt].reshape(dimensions)
# update cnt
self.cnt += 1
self.lock.release()
# return handle to the shared memory numpy array
return self.cur
def __getNextFreeHdl(self):
orgCur = self.cur
while self.shared_arrays[self.cur] is not None:
self.cur = (self.cur + 1) % len(self.shared_arrays)
if orgCur == self.cur:
raise SharedNumpyMemManagerError('Max Number of Shared Numpy Arrays Exceeded!')
def __freeArray(self, hdl):
self.lock.acquire()
# set reference to None
if self.shared_arrays[hdl] is not None: # consider multiple calls to free
self.shared_arrays[hdl] = None
self.cnt -= 1
self.lock.release()
def __getArray(self, i):
return self.shared_arrays[i]
@staticmethod
def getInstance():
if not SharedNumpyMemManager._instance:
SharedNumpyMemManager._instance = SharedNumpyMemManager()
return SharedNumpyMemManager._instance
@staticmethod
def createArray(*args, **kwargs):
return SharedNumpyMemManager.getInstance().__createArray(*args, **kwargs)
@staticmethod
def getArray(*args, **kwargs):
return SharedNumpyMemManager.getInstance().__getArray(*args, **kwargs)
@staticmethod
def freeArray(*args, **kwargs):
return SharedNumpyMemManager.getInstance().__freeArray(*args, **kwargs)
# Init Singleton on module load
SharedNumpyMemManager.getInstance()
if __name__ == '__main__':
import timeit
N_PROC = 8
INNER_LOOP = 10000
N = 1000
def propagate(t):
i, shm_hdl, evidence = t
a = SharedNumpyMemManager.getArray(shm_hdl)
for j in range(INNER_LOOP):
a[i] = i
class Parallel_Dummy_PF:
def __init__(self, N):
self.N = N
self.arrayHdl = SharedNumpyMemManager.createArray(self.N, ctype=ctypes.c_double)
self.pool = multiprocessing.Pool(processes=N_PROC)
def update_par(self, evidence):
self.pool.map(propagate, zip(range(self.N), [self.arrayHdl] * self.N, [evidence] * self.N))
def update_seq(self, evidence):
for i in range(self.N):
propagate((i, self.arrayHdl, evidence))
def getArray(self):
return SharedNumpyMemManager.getArray(self.arrayHdl)
def parallelExec():
pf = Parallel_Dummy_PF(N)
print(pf.getArray())
pf.update_par(5)
print(pf.getArray())
def sequentialExec():
pf = Parallel_Dummy_PF(N)
print(pf.getArray())
pf.update_seq(5)
print(pf.getArray())
t1 = timeit.Timer("sequentialExec()", "from __main__ import sequentialExec")
t2 = timeit.Timer("parallelExec()", "from __main__ import parallelExec")
print("Sequential: ", t1.timeit(number=1))
print("Parallel: ", t2.timeit(number=1))
For no particular reason, arrays cannot be assigned to one another. Use std::copy
instead:
#include <algorithm>
// ...
int a[8] = {2, 3, 5, 7, 11, 13, 17, 19};
int b[8];
std::copy(a + 0, a + 8, b);
This is more flexible than what true array assignment could provide because it is possible to copy slices of larger arrays into smaller arrays.
std::copy
is usually specialized for primitive types to give maximum performance. It is unlikely that std::memcpy
performs better. If in doubt, measure.
Although you cannot assign arrays directly, you can assign structs and classes which contain array members. That is because array members are copied memberwise by the assignment operator which is provided as a default by the compiler. If you define the assignment operator manually for your own struct or class types, you must fall back to manual copying for the array members.
Arrays cannot be passed by value. You can either pass them by pointer or by reference.
Since arrays themselves cannot be passed by value, usually a pointer to their first element is passed by value instead. This is often called "pass by pointer". Since the size of the array is not retrievable via that pointer, you have to pass a second parameter indicating the size of the array (the classic C solution) or a second pointer pointing after the last element of the array (the C++ iterator solution):
#include <numeric>
#include <cstddef>
int sum(const int* p, std::size_t n)
{
return std::accumulate(p, p + n, 0);
}
int sum(const int* p, const int* q)
{
return std::accumulate(p, q, 0);
}
As a syntactic alternative, you can also declare parameters as T p[]
, and it means the exact same thing as T* p
in the context of parameter lists only:
int sum(const int p[], std::size_t n)
{
return std::accumulate(p, p + n, 0);
}
You can think of the compiler as rewriting T p[]
to T *p
in the context of parameter lists only. This special rule is partly responsible for the whole confusion about arrays and pointers. In every other context, declaring something as an array or as a pointer makes a huge difference.
Unfortunately, you can also provide a size in an array parameter which is silently ignored by the compiler. That is, the following three signatures are exactly equivalent, as indicated by the compiler errors:
int sum(const int* p, std::size_t n)
// error: redefinition of 'int sum(const int*, size_t)'
int sum(const int p[], std::size_t n)
// error: redefinition of 'int sum(const int*, size_t)'
int sum(const int p[8], std::size_t n) // the 8 has no meaning here
Arrays can also be passed by reference:
int sum(const int (&a)[8])
{
return std::accumulate(a + 0, a + 8, 0);
}
In this case, the array size is significant. Since writing a function that only accepts arrays of exactly 8 elements is of little use, programmers usually write such functions as templates:
template <std::size_t n>
int sum(const int (&a)[n])
{
return std::accumulate(a + 0, a + n, 0);
}
Note that you can only call such a function template with an actual array of integers, not with a pointer to an integer. The size of the array is automatically inferred, and for every size n
, a different function is instantiated from the template. You can also write quite useful function templates that abstract from both the element type and from the size.
You could simply look in the Active Record Rake tasks as that is where I believe they live as in this file. https://github.com/rails/rails/blob/fe1f4b2ad56f010a4e9b93d547d63a15953d9dc2/activerecord/lib/active_record/tasks/database_tasks.rb
What they do is your question right?
That depends on where they come from and this is just and example to show that they vary depending upon the task. Here we have a different file full of tasks.
https://github.com/rails/rails/blob/fe1f4b2ad56f010a4e9b93d547d63a15953d9dc2/activerecord/Rakefile
which has these tasks.
namespace :db do
task create: ["db:mysql:build", "db:postgresql:build"]
task drop: ["db:mysql:drop", "db:postgresql:drop"]
end
This may not answer your question but could give you some insight into go ahead and look the source over especially the rake files and tasks. As they do a pretty good job of helping you use rails they don't always document the code that well. We could all help there if we know what it is supposed to do.
button.setOnTouchListener(object : View.OnTouchListener{
val gestureDetector = GestureDetector(object : GestureDetector.SimpleOnGestureListener(){
override fun onDoubleTap(e: MotionEvent?): Boolean {
//do something here
return super.onDoubleTap(e)
}
})
override fun onTouch(v: View?, event: MotionEvent?): Boolean {
//do something here
gestureDetector.onTouchEvent(event)
return true
}
})
Another solution within a query :
select
Id,
STUFF(
(select (', "' + od.ProductName + '"')
from OrderDetails od (nolock)
where od.Order_Id = o.Id
order by od.ProductName
FOR XML PATH('')), 1, 2, ''
) ProductNames
from Orders o (nolock)
where o.Customer_Id = 525188
order by o.Id desc
(EDIT: thanks @user007 for the STUFF declaration)
I could use the GetBody
from Request package.
Look this comment in source code from request.go in net/http:
GetBody defines an optional func to return a new copy of Body. It is used for client requests when a redirect requires reading the body more than once. Use of GetBody still requires setting Body. For server requests it is unused."
GetBody func() (io.ReadCloser, error)
This way you can get the body request without make it empty.
Sample:
getBody := request.GetBody
copyBody, err := getBody()
if err != nil {
// Do something return err
}
http.DefaultClient.Do(request)
There's no need for "else" in this case:
IF EXISTS(SELECT * FROM table1 WHERE Name='John' ) return 1
return 0
This worked for me:
yum install python36-pyOpenSSL
python version and package manager might differ.
Manifest.MF contains information about the files contained in the JAR file.
Whenever a JAR file is created a default manifest.mf file is created inside META-INF folder and it contains the default entries like this:
Manifest-Version: 1.0
Created-By: 1.7.0_06 (Oracle Corporation)
These are entries as “header:value” pairs. The first one specifies the manifest version and second one specifies the JDK version with which the JAR file is created.
Main-Class header: When a JAR file is used to bundle an application in a package, we need to specify the class serving an entry point of the application. We provide this information using ‘Main-Class’ header of the manifest file,
Main-Class: {fully qualified classname}
The ‘Main-Class’ value here is the class having main method. After specifying this entry we can execute the JAR file to run the application.
Class-Path header: Most of the times we need to access the other JAR files from the classes packaged inside application’s JAR file. This can be done by providing their fully qualified paths in the manifest file using ‘Class-Path’ header,
Class-Path: {jar1-name jar2-name directory-name/jar3-name}
This header can be used to specify the external JAR files on the same local network and not inside the current JAR.
Package version related headers: When the JAR file is used for package versioning the following headers are used as specified by the Java language specification:
Headers in a manifest
Header | Definition
-------------------------------------------------------------------
Name | The name of the specification.
Specification-Title | The title of the specification.
Specification-Version | The version of the specification.
Specification-Vendor | The vendor of the specification.
Implementation-Title | The title of the implementation.
Implementation-Version | The build number of the implementation.
Implementation-Vendor | The vendor of the implementation.
Package sealing related headers:
We can also specify if any particular packages inside a JAR file should be sealed meaning all the classes defined in that package must be archived in the same JAR file. This can be specified with the help of ‘Sealed’ header,
Name: {package/some-package/} Sealed:true
Here, the package name must end with ‘/’.
Enhancing security with manifest files:
We can use manifest files entries to ensure the security of the web application or applet it packages with the different attributes as ‘Permissions’, ‘Codebae’, ‘Application-Name’, ‘Trusted-Only’ and many more.
META-INF folder:
This folder is where the manifest file resides. Also, it can contain more files containing meta data about the application. For example, in an EJB module JAR file, this folder contains the EJB deployment descriptor for the EJB module along with the manifest file for the JAR. Also, it contains the xml file containing mapping of an abstract EJB references to concrete container resources of the application server on which it will be run.
Reference:
https://docs.oracle.com/javase/tutorial/deployment/jar/manifestindex.html
Non-resolvable parent POM: This means you cannot resolve the parent repo.
Trun on debug mode:
[DEBUG] Reading global settings from **/usr/local/Cellar/maven/3.5.4/libexec/conf/settings.xml**
[DEBUG] **Reading user settings from /Users/username/.m2/settings.xml**
[DEBUG] Reading global toolchains from /usr/local/Cellar/maven/3.5.4/libexec/conf/toolchains.xml
[DEBUG] Reading user toolchains from /Users/username/.m2/toolchains.xml
[DEBUG] Using local repository at /Users/username/.m2/repository
[DEBUG] Using manager EnhancedLocalRepositoryManager with priority 10.0 for /Users/username/.m2/repository
[INFO] Scanning for projects...
[ERROR] [ERROR] Some problems were encountered while processing the POMs:
Because the parent repo is not part of the maven central. The solution is specify a setting.xml in ~m2/ to help result the parent POM. /Users/username/.m2/settings.xml
In that XML, you might need to specify the repository information.
I just solved this exact issue for myself; even referenced this question.
I'm assuming you haven't written the "all" rule that Eclipse is complaining about. If this is the case, take these steps:
This lets Eclipse know you aren't trying to use a make target called "all". For some reason, that is the default.
The best way to do it is:
return this.StatusCode(StatusCodes.Status418ImATeapot, "Error message");
'StatusCodes' has every kind of return status and you can see all of them in this link https://httpstatuses.com/
Once you choose your StatusCode, return it with a message.
The answer from @edutesoy points to the documentation of PowerMockito
and mentions constructor mocking as a hint but doesn't mention how to apply that to the current problem in the question.
Here is a solution based on that. Taking the code from the question:
public class MyClass {
void method1 {
MyObject obj1 = new MyObject();
obj1.method1();
}
}
The following test will create a mock of the MyObject
instance class via preparing the class that instantiates it (in this example I am calling it MyClass
) with PowerMock
and letting PowerMockito
to stub the constructor of MyObject
class, then letting you stub the MyObject
instance method1()
call:
@RunWith(PowerMockRunner.class)
@PrepareForTest(MyClass.class)
public class MyClassTest {
@Test
public void testMethod1() {
MyObject myObjectMock = mock(MyObject.class);
when(myObjectMock.method1()).thenReturn(<whatever you want to return>);
PowerMockito.whenNew(MyObject.class).withNoArguments().thenReturn(myObjectMock);
MyClass objectTested = new MyClass();
objectTested.method1();
... // your assertions or verification here
}
}
With that your internal method1()
call will return what you want.
If you like the one-liners you can make the code shorter by creating the mock and the stub inline:
MyObject myObjectMock = when(mock(MyObject.class).method1()).thenReturn(<whatever you want>).getMock();
If you are on Windows, you can use the FindFirstFile together with FindNextFile API. You can use FindFileData.dwFileAttributes to check if a given path is a file or a directory. If it's a directory, you can recursively repeat the algorithm.
Here, I have put together some code that lists all the files on a Windows machine.
If you don't call the favicon, favicon.ico
, you can use that tag to specify the actual path (incase you have it in an images/
directory). The browser/webpage looks for favicon.ico
in the root directory by default.
It Worked for me: For Current Date
$date = date('Y-m-d', strtotime("+1 day"));
for anydate:
date('Y-m-d', strtotime("+1 day", strtotime($date)));
If you need an ordered dictionary, you can use odict.
I'm coming from a SQL Server background also and spent the past 2 weeks figuring out how to run scripts like this in IBM Data Studio. Hope it helps.
CREATE VARIABLE v_lookupid INTEGER DEFAULT (4815162342); --where 4815162342 is your variable data
SELECT * FROM DB1.PERSON WHERE PERSON_ID = v_lookupid;
SELECT * FROM DB1.PERSON_DATA WHERE PERSON_ID = v_lookupid;
SELECT * FROM DB1.PERSON_HIST WHERE PERSON_ID = v_lookupid;
DROP VARIABLE v_lookupid;
First of all, you probably don't want the align
environment if you have only one column of equations. In fact, your example is probably best with the cases
environment. But to answer your question directly, used the aligned
environment within equation
- this way the outside environment gives the number:
\begin{equation}
\begin{aligned}
w^T x_i + b &\geq 1-\xi_i &\text{ if }& y_i=1, \\
w^T x_i + b &\leq -1+\xi_i & \text{ if } &y_i=-1,
\end{aligned}
\end{equation}
The documentation of the amsmath
package explains this and more.
app.config
app.name=Properties Sample Code
app.version=1.09
Source code:
Properties prop = new Properties();
String fileName = "app.config";
InputStream is = null;
try {
is = new FileInputStream(fileName);
} catch (FileNotFoundException ex) {
...
}
try {
prop.load(is);
} catch (IOException ex) {
...
}
System.out.println(prop.getProperty("app.name"));
System.out.println(prop.getProperty("app.version"));
Output:
Properties Sample Code
1.09
May not sound very elegant, but I usually do something like this:
var items = repository.func.ToList();
items.Insert(0, new funcItem { ID = 0, TextValue = "[None]" });
ViewBag.MyData = new SelectList(items);
you can try Jquery plugin , it trigger events when css is change and its easy to use
http://meetselva.github.io/#gist-section-attrchangeExtension
$([selector]).attrchange({
trackValues: true,
callback: function (e) {
//console.log( '<p>Attribute <b>' + e.attributeName +'</b> changed from <b>' + e.oldValue +'</b> to <b>' + e.newValue +'</b></p>');
//event.attributeName - Attribute Name
//event.oldValue - Prev Value
//event.newValue - New Value
}
});
I think you can use this code also: and you can manage your class css better
<style>
.navigationClass{
display: inline-block;
padding: 0px 0px 0px 6px;
background-color: whitesmoke;
border-radius: 2px;
}
</style>
<div id="header" class="row">
<div id="logo" class="col_12">And the winner is<span>n't...</span></div>
<div id="navigation" class="row">
<ul id="pirra">
<li><a href="#">Why?</a></li>
<li><a href="#">Synopsis</a></li>
<li><a href="#">Stills/Photos</a></li>
<li><a href="#">Videos/clips</a></li>
<li><a href="#">Quotes</a></li>
<li><a href="#">Quiz</a></li>
</ul>
</div>
<script>
$(document).ready(function() {
$('#navigation ul li').addClass('navigationClass'); //add class navigationClass to the #navigation .
});
</script>
Calculate the Euclidean distance for multidimensional space:
import math
x = [1, 2, 6]
y = [-2, 3, 2]
dist = math.sqrt(sum([(xi-yi)**2 for xi,yi in zip(x, y)]))
5.0990195135927845
Please refer this link :
Select Windows or linked base command, In my case I have used Linux :
Create a new Anaconda virtual environment Open a new Terminal window
Type the following command: The above will create a new virtual environment with name tensorflow
conda create -n tensorflow pip python=3.8
conda activate tensorflow
CSS auto-fit container between float:left & float:right divs solved my problem, thanks for your comments.
#left
{
width:200px;
float:left;
background-color:antiquewhite;
margin-left:10px;
}
#content
{
overflow:hidden;
margin-left:10px;
background-color:AppWorkspace;
}
Use simple CSS3 (not supported in IE<9)
img
{
box-shadow: 0px 0px 5px #fff;
}
This will put a white glow around every image in your document, use more specific selectors to choose which images you'd like the glow around. You can change the color of course :)
If you're worried about the users that don't have the latest versions of their browsers, use this:
img
{
-moz-box-shadow: 0 0 5px #fff;
-webkit-box-shadow: 0 0 5px #fff;
box-shadow: 0px 0px 5px #fff;
}
For IE you can use a glow filter (not sure which browsers support it)
img
{
filter:progid:DXImageTransform.Microsoft.Glow(Color=white,Strength=5);
}
Play with the settings to see what suits you :)
Here's what I use. In my case, certain ftp servers (pure-ftpd for one) will always prompt for the username even with the -i parameter, and catch the "user username" command as the interactive password. What I do it enter a few NOOP (no operation) commands until the ftp server times out, and then login:
open ftp.example.com
noop
noop
noop
noop
noop
noop
noop
noop
user username password
...
quit
You can easily call a method from any Fragment inside your Activity by doing a cast like this:
Java
((MainActivity)getActivity()).startChronometer();
Kotlin
(activity as MainActivity).startChronometer()
Just remember to make sure this Fragment's activity is in fact MainActivity before you do it.
Hope this helps!
The official answer from Facebook (http://developers.facebook.com/bugs/282710765082535):
Mikhail,
The facebook android sdk no longer supports android 1.5 and 1.6. Please upgrade to the next api version.
Good luck with your implementation.
string s = "This is a sentence.";
string[] res = s.Split(new string[]{ " is " }, StringSplitOptions.None);
for(int i=0; i<res.length; i++)
Console.Write(res[i]);
EDIT: The "is" is padded on both sides with spaces in the array in order to preserve the fact that you only want the word "is" removed from the sentence and the word "this" to remain intact.
function func(a, b)
{
if (typeof a == 'undefined')
a = 10;
if (typeof b == 'undefined')
b = 20;
// do what you want ... for example
alert(a + ',' + b);
}
in shorthand
function func(a, b)
{
a = (typeof a == 'undefined')?10:a;
b = (typeof b == 'undefined')?20:b;
// do what you want ... for example
alert(a + ',' + b);
}
to set height of table to its container I must do:
1) set "position: absolute"
2) remove redundant contents of cells (!)
After a lot of research, I was able to come up with this. This has more special characters
validatePassword(password) {
const re = /(?=.*\d)(?=.*[a-z])(?=.*[A-Z])(?=.*[!@#$%^&*()+=-\?;,./{}|\":<>\[\]\\\' ~_]).{8,}/
return re.test(password);
}
Java array reflection is for cases where you don't have an instance of the Class available to do "instanceof" on. For example, if you're writing some sort of injection framework, that injects values into a new instance of a class, such as JPA does, then you need to use the isArray() functionality.
I blogged about this earlier in December. http://blog.adamsbros.org/2010/12/08/java-array-reflection/
Here is an example:
List<String> names;
names.add("toto");
names.add("Lala");
names.add("papa");
int index = names.indexOf("papa"); // index = 2
You can use this function in your application to add keys to indexed array.
public static function convertIndexedArrayToAssociative($indexedArr, $keys)
{
$resArr = array();
foreach ($indexedArr as $item)
{
$tmpArr = array();
foreach ($item as $key=>$value)
{
$tmpArr[$keys[$key]] = $value;
}
$resArr[] = $tmpArr;
}
return $resArr;
}
When I want to see a snapshot of a table(s), and/or view (in a read-only way)
Angular 8 HttpClient Service example with Error Handling and Custom Header
import { Injectable } from '@angular/core';
import { HttpClient, HttpHeaders, HttpErrorResponse } from '@angular/common/http';
import { Student } from '../model/student';
import { Observable, throwError } from 'rxjs';
import { retry, catchError } from 'rxjs/operators';
@Injectable({
providedIn: 'root'
})
export class ApiService {
// API path
base_path = 'http://localhost:3000/students';
constructor(private http: HttpClient) { }
// Http Options
httpOptions = {
headers: new HttpHeaders({
'Content-Type': 'application/json'
})
}
// Handle API errors
handleError(error: HttpErrorResponse) {
if (error.error instanceof ErrorEvent) {
// A client-side or network error occurred. Handle it accordingly.
console.error('An error occurred:', error.error.message);
} else {
// The backend returned an unsuccessful response code.
// The response body may contain clues as to what went wrong,
console.error(
`Backend returned code ${error.status}, ` +
`body was: ${error.error}`);
}
// return an observable with a user-facing error message
return throwError(
'Something bad happened; please try again later.');
};
// Create a new item
createItem(item): Observable<Student> {
return this.http
.post<Student>(this.base_path, JSON.stringify(item), this.httpOptions)
.pipe(
retry(2),
catchError(this.handleError)
)
}
....
....
Check complete example tutorial here
for windows use &
in between command also. Like,
"scripts": {
"start": "SET NODE_ENV=development & nodemon app/app.js",
}
You could use XML.
E.g.
declare @xmlstring as varchar(100)
set @xmlstring = '<args><arg value="42" /><arg2>-1</arg2></args>'
declare @docid int
exec sp_xml_preparedocument @docid output, @xmlstring
select [id],parentid,nodetype,localname,[text]
from openxml(@docid, '/args', 1)
The command sp_xml_preparedocument is built in.
This would produce the output:
id parentid nodetype localname text
0 NULL 1 args NULL
2 0 1 arg NULL
3 2 2 value NULL
5 3 3 #text 42
4 0 1 arg2 NULL
6 4 3 #text -1
which has all (more?) of what you you need.
r = ("1"+"2"+"3") // step1 | build string ==> "123"
r = +r // step2 | to number ==> 123
r = r+100 // step3 | +100 ==> 223
r = ""+r // step4 | to string ==> "223"
//in one line
r = ""+(+("1"+"2"+"3")+100);
One quick way to do this is to create a column with a formula that evaluates to true for the rows you care about and then filter for the value TRUE in that column.
jQuery version:
$(window).unload(function(){
// Do Something
});
Update: jQuery 3:
$(window).on("unload", function(e) {
// Do Something
});
Thanks Garrett
And I simply got this error because I used a totally different DocumentRoot directory.
My main DocumentRoot was the default /var/www/html
and on the VirtualHost I used /sites/example.com
I have created a link on /var/www/html/example.com
(to /sites/example.com
).
DocumentRoot was set to /var/www/html/example.com
It worked like a charm.
function("MyString");
is similar to
char *s = "MyString";
function(s);
"MyString"
is in both cases a string literal and in both cases the string is unmodifiable.
function("MyString");
passes the address of a string literal to function
as an argument.
In current version of Jekyll, it defaults to http://127.0.0.1:4000/.
This is good, if you are connected to a network but do not want anyone else to access your application.
However it may happen that you want to see how your application runs on a mobile or from some other laptop/computer.
In that case, you can use
jekyll serve --host 0.0.0.0
This binds your application to the host & next use following to connect to it from some other host
http://host's IP adress/4000
Try the following:
zip [zipfile] [file to update]
An example:
$ zip test.zip test/test.txt
updating: test/test.txt (stored 0%)
This is from MSDN sample:
(*.bmp, *.jpg)|*.bmp;*.jpg
So for your case
openFileDialog1.Filter = "JPG (*.jpg,*.jpeg)|*.jpg;*.jpeg|TIFF (*.tif,*.tiff)|*.tif;*.tiff"
Easy Difference,
Final : means that the Value of the variable is Final and it will not change anywhere. If you say that final x = 5 it means x can not be changed its value is final for everyone.
Static : means that it has only one object. lets suppose you have x = 5, in memory there is x = 5 and its present inside a class. if you create an object or instance of the class which means there a specific box that represents that class and its variables and methods. and if you create an other object or instance of that class it means there are two boxes of that same class which has different x inside them in the memory. and if you call both x in different positions and change their value then their value will be different. box 1 has x which has x =5 and box 2 has x = 6. but if you make the x static it means it can not be created again. you can create object of class but that object will not have different x in them. if x is static then box 1 and box 2 both will have the same x which has the value of 5. Yes i can change the value of static any where as its not final. so if i say box 1 has x and i change its value to x =5 and after that i make another box which is box2 and i change the value of box2 x to x=6. then as X is static both boxes has the same x. and both boxes will give the value of box as 6 because box2 overwrites the value of 5 to 6.
Both final and static are totally different. Final which is final can not be changed. static which will remain as one but can be changed.
"This is an example. remember static variable are always called by their class name. because they are only one for all of the objects of that class. so Class A has x =5, i can call and change it by A.x=6; "
You didn't hear it from me, the PM for Razor, but in Razor 2 (Web Pages 2 and MVC 4) we'll have conditional attributes built into Razor(as of MVC 4 RC tested successfully), so you can just say things like this...
<input type="text" id="@strElementID" class="@strCSSClass" />
If strCSSClass is null then the class attribute won't render at all.
SSSHHH...don't tell. :)
Although other answers include some of the following information, this is the absolute minimum that needs to be changed on EC2 instances, specifically regarding deployment of large WAR files, and is the least likely to cause issues during future updates. I've been running into these limits about every other year due to the ever-increasing size of the Jenkins WAR file (now ~72MB).
More specifically, this answer is applicable if you encounter a variant of the following error in catalina.out
:
SEVERE [https-jsse-nio-8443-exec-17] org.apache.catalina.core.ApplicationContext.log HTMLManager:
FAIL - Deploy Upload Failed, Exception:
[org.apache.tomcat.util.http.fileupload.FileUploadBase$SizeLimitExceededException:
the request was rejected because its size (75333656) exceeds the configured maximum (52428800)]
On Amazon EC2 Linux instances, the only file that needs to be modified from the default installation of Tomcat (sudo yum install tomcat8
) is:
/usr/share/tomcat8/webapps/manager/WEB-INF/web.xml
By default, the maximum upload size is exactly 50MB:
<multipart-config>
<!-- 50MB max -->
<max-file-size>52428800</max-file-size>
<max-request-size>52428800</max-request-size>
<file-size-threshold>0</file-size-threshold>
</multipart-config>
There are only two values that need to be modified (max-file-size
and max-request-size
):
<multipart-config>
<!-- 100MB max -->
<max-file-size>104857600</max-file-size>
<max-request-size>104857600</max-request-size>
<file-size-threshold>0</file-size-threshold>
</multipart-config>
When Tomcat is upgraded on these instances, the new version of the manager web.xml
will be placed in web.xml.rpmnew
, so any modifications to the original file will not be overwritten during future updates.
I just had need to do this for a config file.
var config = {
x: "CHANGE_ME",
y: "CHANGE_ME",
z: "CHANGE_ME"
}
export default config;
You can do it like this
import { default as config } from "./config";
console.log(config.x); // CHANGE_ME
This is using Typescript mind you.
From Wikipedia
The
stdlib.h
andstddef.h
header files define a datatype calledsize_t
1 which is used to represent the size of an object. Library functions that take sizes expect them to be of typesize_t
, and the sizeof operator evaluates tosize_t
.The actual type of
size_t
is platform-dependent; a common mistake is to assumesize_t
is the same as unsigned int, which can lead to programming errors,2 particularly as 64-bit architectures become more prevalent.
From C99 7.17.1/2
The following types and macros are defined in the standard header
stddef.h
<snip>
size_t
which is the unsigned integer type of the result of the sizeof operator
It speaks volumes about our profession that when asked about the "best comment", we all answer with the worst comments we can find...
I have updated the controller to:
.controller('BusinessCtrl',
function ($scope, $http, $location, Business, BusinessService, UserService, Photo) {
$scope.$watch('createBusinessForm.$valid', function(newVal) {
//$scope.valid = newVal;
$scope.informationStatus = true;
});
...
The app can't be run natively, but it could be run on an emulator. You can use ManyMo to embed them in a website and make users add your app to their home screen. This link should be useful for making the app more realistic. Users could then only press the share button and add the app to their home screen. All data will be deleted when the "app" is closed in their iOS devices so you should use the Internet/cloud for storage. It can't access camera or multi touch, but it may be useful.
For some reason [IgnoreDataMember]
does not always work for me, and I sometimes get StackOverflowException
(or similar). So instead (or in addition) i've started using a pattern looking something like this when POST
ing in Objects
to my API:
[Route("api/myroute")]
[AcceptVerbs("POST")]
public IHttpActionResult PostMyObject(JObject myObject)
{
MyObject myObjectConverted = myObject.ToObject<MyObject>();
//Do some stuff with the object
return Ok(myObjectConverted);
}
So basically i pass in an JObject
and convert it after it has been recieved to aviod problems caused by the built-in serializer that sometimes cause an infinite loop while parsing the objects.
If someone know a reason that this is in any way a bad idea, please let me know.
It may be worth noting that it is the following code for an EntityFramework Class-property that causes the problem (If two classes refer to each-other):
[Serializable]
public partial class MyObject
{
[IgnoreDataMember]
public MyOtherObject MyOtherObject => MyOtherObject.GetById(MyOtherObjectId);
}
[Serializable]
public partial class MyOtherObject
{
[IgnoreDataMember]
public List<MyObject> MyObjects => MyObject.GetByMyOtherObjectId(Id);
}
_CodeSigned
folderembedded.mobileprovision
file with the new provision profileExecute the below mentioned command:
/usr/bin/codesign -f -s "iPhone Distribution: Certificate Name" --resource-rules "Payload/Application.app/ResourceRules.plist" "Payload/Application.app"
Now zip the Payload folder again and change the .zip extension with .ipa
Hope this helpful.
For reference follow below mentioned link: http://www.modelmetrics.com/tomgersic/codesign-re-signing-an-ipa-between-apple-accounts/
In my case the issue was due to duplicate binding redirects in my web.config. More info here.
I assume it was because of NuGet modifying the binding redirects, but for example it was looking like this:
<dependentAssembly>
<assemblyIdentity name="Lucene.Net" publicKeyToken="85089178b9ac3181"/>
<bindingRedirect oldVersion="0.0.0.0-2.9.4.0" newVersion="3.0.3.0"/>
</dependentAssembly>
<dependentAssembly>
<assemblyIdentity name="Newtonsoft.Json" publicKeyToken="30ad4fe6b2a6aeed"/>
<bindingRedirect oldVersion="0.0.0.0-11.0.0.0" newVersion="11.0.0.0"/>
</dependentAssembly>
<dependentAssembly>
<assemblyIdentity name="System.Net.Http" publicKeyToken="b03f5f7f11d50a3a" culture="neutral"/>
<bindingRedirect oldVersion="0.0.0.0-4.2.0.0" newVersion="4.0.0.0"/>
</dependentAssembly>
<dependentAssembly>
<assemblyIdentity name="Lucene.Net" publicKeyToken="85089178b9ac3181"/>
<bindingRedirect oldVersion="0.0.0.0-2.9.4.0" newVersion="3.0.3.0"/>
</dependentAssembly>
<dependentAssembly>
<assemblyIdentity name="Newtonsoft.Json" publicKeyToken="30ad4fe6b2a6aeed"/>
<bindingRedirect oldVersion="0.0.0.0-11.0.0.0" newVersion="11.0.0.0"/>
</dependentAssembly>
<dependentAssembly>
<assemblyIdentity name="System.Net.Http" publicKeyToken="b03f5f7f11d50a3a" culture="neutral"/>
<bindingRedirect oldVersion="0.0.0.0-4.2.0.0" newVersion="4.0.0.0"/>
</dependentAssembly>
Removing all the duplicates solved the problem.
For everyone having the same issue, make sure you actually wrote "120px" instead of only "120". This was my mistake and it drove me crazy.
You can do:
SELECT lower(FIRST NAME) ABC
FROM PERSON
NOTE: ABC
is used if you want to change the name of the column
I had the same problem. I tried every thing from the huge list of answer but in the end my problem was: I'm working with openCV so I need to combine C++ code in my code. To do this you should change the files which use objective-c and C++ to .mm I didn't changed one file and this file has no connection to the C++ code but I had to change it.
It's browser dependent. "By default, Internet Explorer has a KeepAliveTimeout value of one minute and an additional limiting factor (ServerInfoTimeout) of two minutes. Either setting can cause Internet Explorer to reset the socket." - from IE support http://support.microsoft.com/kb/813827
Firefox is around the same value I think as well.
Usually though server timeout are set lower than browser timeouts, but at least you can control that and set it higher.
You'd rather handle the timeout though, so that way you can act upon such an event. See this thread: How to detect timeout on an AJAX (XmlHttpRequest) call in the browser?
FWIW, I had exactly the same question, but I could not find the answer here. It's probably not portable, but at least for gitolite, I can run the following to get what I want:
$ ssh [email protected] info
hello akim, this is gitolite 2.3-1 (Debian) running on git 1.7.10.4
the gitolite config gives you the following access:
R W android
R W bistro
R W checkpn
...
Try this :
new OutputStreamWriter( new FileOutputStream("Your_file_fullpath" ),Charset.forName("UTF8"))
One can configure Git to automatically remove references to deleted remote branches when fetching:
git config --global fetch.prune true
When calling git fetch
or git pull
afterwards, references to deleted remote branches get removed automatically.
You want rows where that condition is true so you need a comma:
data[data$Ozone > 14, ]
Based on @ganaraj 's answer, and @dnc253 's answer, I just made a simple "directive" for the tree structure having selecting, adding, deleting, and editing feature.
Jsfiddle: http://jsfiddle.net/yoshiokatsuneo/9dzsms7y/
HTML:
<script type="text/ng-template" id="tree_item_renderer.html">
<div class="node" ng-class="{selected: data.selected}" ng-click="select(data)">
<span ng-click="data.hide=!data.hide" style="display:inline-block; width:10px;">
<span ng-show="data.hide && data.nodes.length > 0" class="fa fa-caret-right">+</span>
<span ng-show="!data.hide && data.nodes.length > 0" class="fa fa-caret-down">-</span>
</span>
<span ng-show="!data.editting" ng-dblclick="edit($event)" >{{data.name}}</span>
<span ng-show="data.editting"><input ng-model="data.name" ng-blur="unedit()" ng-focus="f()"></input></span>
<button ng-click="add(data)">Add node</button>
<button ng-click="delete(data)" ng-show="data.parent">Delete node</button>
</div>
<ul ng-show="!data.hide" style="list-style-type: none; padding-left: 15px">
<li ng-repeat="data in data.nodes">
<recursive><sub-tree data="data"></sub-tree></recursive>
</li>
</ul>
</script>
<ul ng-app="Application" style="list-style-type: none; padding-left: 0">
<tree data='{name: "Node", nodes: [],show:true}'></tree>
</ul>
JavaScript:
angular.module("myApp",[]);
/* https://stackoverflow.com/a/14657310/1309218 */
angular.module("myApp").
directive("recursive", function($compile) {
return {
restrict: "EACM",
require: '^tree',
priority: 100000,
compile: function(tElement, tAttr) {
var contents = tElement.contents().remove();
var compiledContents;
return function(scope, iElement, iAttr) {
if(!compiledContents) {
compiledContents = $compile(contents);
}
compiledContents(scope,
function(clone) {
iElement.append(clone);
});
};
}
};
});
angular.module("myApp").
directive("subTree", function($timeout) {
return {
restrict: 'EA',
require: '^tree',
templateUrl: 'tree_item_renderer.html',
scope: {
data: '=',
},
link: function(scope, element, attrs, treeCtrl) {
scope.select = function(){
treeCtrl.select(scope.data);
};
scope.delete = function() {
scope.data.parent.nodes.splice(scope.data.parent.nodes.indexOf(scope.data), 1);
};
scope.add = function() {
var post = scope.data.nodes.length + 1;
var newName = scope.data.name + '-' + post;
scope.data.nodes.push({name: newName,nodes: [],show:true, parent: scope.data});
};
scope.edit = function(event){
scope.data.editting = true;
$timeout(function(){event.target.parentNode.querySelector('input').focus();});
};
scope.unedit = function(){
scope.data.editting = false;
};
}
};
});
angular.module("myApp").
directive("tree", function(){
return {
restrict: 'EA',
template: '<sub-tree data="data" root="data"></sub-tree>',
controller: function($scope){
this.select = function(data){
if($scope.selected){
$scope.selected.selected = false;
}
data.selected = true;
$scope.selected = data;
};
},
scope: {
data: '=',
}
}
});
The #
part gives you a 0x
in the output string. The 0
and the x
count against your "8" characters listed in the 08
part. You need to ask for 10 characters if you want it to be the same.
int i = 7;
printf("%#010x\n", i); // gives 0x00000007
printf("0x%08x\n", i); // gives 0x00000007
printf("%#08x\n", i); // gives 0x000007
Also changing the case of x
, affects the casing of the outputted characters.
printf("%04x", 4779); // gives 12ab
printf("%04X", 4779); // gives 12AB
Apparently YouTube constantly polls for Google Cast scripts even if the extension isn't installed.
From one commenter:
... it appears that Chrome attempts to get cast_sender.js on pages that have YouTube content. I'm guessing when Chrome sees media that it can stream it attempts to access the Chromecast extension. When the extension isn't present, the error is thrown.
The only solution I've come across is to install the Google Cast extension, whether you need it or not. You may then hide the toolbar button.
For more information and updates, see this SO question. Here's the official issue.
You're confusing actual precision and display precision. Decimal rounding cannot be represented exactly in binary. You should try:
> np.set_printoptions(precision=2)
> np.array([5.333333])
array([ 5.33])
You can use Programmatic Navigation.In order to go back, you use this:
router.go(n)
Where n can be positive or negative (to go back). This is the same as history.back().So you can have your element like this:
<a @click="$router.go(-1)">back</a>
You can use "<pre>(.*?)</pre>"
, (replacing pre with whatever text you want) and extract the first group (for more specific instructions specify a language) but this assumes the simplistic notion that you have very simple and valid HTML.
As other commenters have suggested, if you're doing something complex, use a HTML parser.
I prefer not to use $watch
for this. Instead of assigning the entire service to a controller's scope you can assign just the data.
JS:
var myApp = angular.module('myApp', []);
myApp.factory('MyService', function(){
return {
data: {
firstName: '',
lastName: ''
}
// Other methods or objects can go here
};
});
myApp.controller('FirstCtrl', function($scope, MyService){
$scope.data = MyService.data;
});
myApp.controller('SecondCtrl', function($scope, MyService){
$scope.data = MyService.data;
});
HTML:
<div ng-controller="FirstCtrl">
<input type="text" ng-model="data.firstName">
<br>Input is : <strong>{{data.firstName}}</strong>
</div>
<hr>
<div ng-controller="SecondCtrl">
Input should also be here: {{data.firstName}}
</div>
Alternatively you can update the service data with a direct method.
JS:
// A new factory with an update method
myApp.factory('MyService', function(){
return {
data: {
firstName: '',
lastName: ''
},
update: function(first, last) {
// Improve this method as needed
this.data.firstName = first;
this.data.lastName = last;
}
};
});
// Your controller can use the service's update method
myApp.controller('SecondCtrl', function($scope, MyService){
$scope.data = MyService.data;
$scope.updateData = function(first, last) {
MyService.update(first, last);
}
});
[edit sept 2020]: a snippet containing previous answer and added an arrow function
// a (not very efficient) oneliner
let yesterday = new Date(new Date().setDate(new Date().getDate()-1));
console.log(yesterday);
// a function call
yesterday = ( function(){this.setDate(this.getDate()-1); return this} )
.call(new Date);
console.log(yesterday);
// an iife (immediately invoked function expression)
yesterday = function(d){ d.setDate(d.getDate()-1); return d}(new Date);
console.log(yesterday);
// oneliner using es6 arrow function
yesterday = ( d => new Date(d.setDate(d.getDate()-1)) )(new Date);
console.log(yesterday);
// use a method
const getYesterday = (dateOnly = false) => {
let d = new Date();
d.setDate(d.getDate() - 1);
return dateOnly ? new Date(d.toDateString()) : d;
};
console.log(getYesterday());
console.log(getYesterday(true));
_x000D_
If you are using Windows 2003 (note that windows server 2008 and later are not supported) you can use The Windows Server 2003 Resource Kit, which contains timeit.exe that displays detailed execution stats. Here is an example, timing the command "timeit -?":
C:\>timeit timeit -?
Invalid switch -?
Usage: TIMEIT [-f filename] [-a] [-c] [-i] [-d] [-s] [-t] [-k keyname | -r keyname] [-m mask] [commandline...]
where: -f specifies the name of the database file where TIMEIT
keeps a history of previous timings. Default is .\timeit.dat
-k specifies the keyname to use for this timing run
-r specifies the keyname to remove from the database. If
keyname is followed by a comma and a number then it will
remove the slowest (positive number) or fastest (negative)
times for that keyname.
-a specifies that timeit should display average of all timings
for the specified key.
-i specifies to ignore non-zero return codes from program
-d specifies to show detail for average
-s specifies to suppress system wide counters
-t specifies to tabular output
-c specifies to force a resort of the data base
-m specifies the processor affinity mask
Version Number: Windows NT 5.2 (Build 3790)
Exit Time: 7:38 am, Wednesday, April 15 2009
Elapsed Time: 0:00:00.000
Process Time: 0:00:00.015
System Calls: 731
Context Switches: 299
Page Faults: 515
Bytes Read: 0
Bytes Written: 0
Bytes Other: 298
You can get TimeIt in the Windows 2003 Resource Kit. It's not available for direct download from the Microsoft Download Center, but one can still get it from the arhive.org - Windows Server 2003 Resource Kit Tools.
Just recently found out about this. With apis as:
targetSdkVersion 26
ActivityManager.getCurrentActivity(context)
Hope this is of any use.
If you set null=True
, it will allow the value of your database column to be set as NULL
. If you only set blank=True
, django will set the default new value for the column equal to ""
.
There's one point where null=True
would be necessary even on a CharField
or TextField
and that is when the database has the unique
flag set for the column. In this case you'll need to use this:
a_unique_string = models.CharField(blank=True, null=True, unique=True)
Preferrably skip the null=True
for non-unique CharField
or TextField
. Otherwise some fields will be set as NULL
while others as ""
, and you'll have to check the field value for NULL
everytime.
An interface can extend multiple interfaces.
A class can implement multiple interfaces.
However, a class can only extend a single class.
Careful how you use the words extends
and implements
when talking about interface
and class
.
Sorry for replying too late but I hope this answer can help somebody in future.
Following is a small native C code snippet that can check internet connectivity without any extra class.
Add the following headers:
#include<unistd.h>
#include<netdb.h>
Code:
-(BOOL)isNetworkAvailable
{
char *hostname;
struct hostent *hostinfo;
hostname = "google.com";
hostinfo = gethostbyname (hostname);
if (hostinfo == NULL){
NSLog(@"-> no connection!\n");
return NO;
}
else{
NSLog(@"-> connection established!\n");
return YES;
}
}
Swift 3
func isConnectedToInternet() -> Bool {
let hostname = "google.com"
//let hostinfo = gethostbyname(hostname)
let hostinfo = gethostbyname2(hostname, AF_INET6)//AF_INET6
if hostinfo != nil {
return true // internet available
}
return false // no internet
}
You can try to prevent default handler:
html:
<button ng-click="saveUser($event)">
js:
$scope.saveUser = function (event) {
event.preventDefault();
// your code
}
I've got other solution.
You can use round()
to do that instead toFixed()
var twoPlacedFloat = parseFloat(yourString).round(2)
Here is the BSD implementation:
int
strcmp(s1, s2)
register const char *s1, *s2;
{
while (*s1 == *s2++)
if (*s1++ == 0)
return (0);
return (*(const unsigned char *)s1 - *(const unsigned char *)(s2 - 1));
}
Once there is a mismatch between two characters, it just returns the difference between those two characters.
Put this in your ~/.bashrc (or a file that's source'd from it) which will stop it from being run multiple times unnecessarily per shell:
if [ -z "$SSH_AGENT_PID" ]; then
eval `ssh-agent -s`
fi
And then add "AddKeysToAgent yes" to ~/.ssh/config:
Host *
AddKeysToAgent yes
ssh to your server (or git pull) normally and you'll only be asked for password/passphrase once per session.
In Bootstrap 4, there is a new utility known as .mx-auto
. You just need to specify the width of the centered element.
Ref: http://v4-alpha.getbootstrap.com/utilities/spacing/#horizontal-centering
Diffferent from Bass Jobsen's answer, which is a relative center to the elements on both ends, the following example is absolute centered.
Here's the HTML:
<nav class="navbar bg-faded">
<div class="container">
<ul class="nav navbar-nav pull-sm-left">
<li class="nav-item">
<a class="nav-link" href="#">Link 1</a>
</li>
<li class="nav-item">
<a class="nav-link" href="#">Link 2</a>
</li>
<li class="nav-item">
<a class="nav-link" href="#">Link 3</a>
</li>
<li class="nav-item">
<a class="nav-link" href="#">Link 4</a>
</li>
</ul>
<ul class="nav navbar-nav navbar-logo mx-auto">
<li class="nav-item">
<a class="nav-link" href="#">Brand</a>
</li>
</ul>
<ul class="nav navbar-nav pull-sm-right">
<li class="nav-item">
<a class="nav-link" href="#">Link 5</a>
</li>
<li class="nav-item">
<a class="nav-link" href="#">Link 6</a>
</li>
</ul>
</div>
</nav>
And CSS:
.navbar-logo {
width: 90px;
}
As was in my case if your sql is generated by concatenating or uses converts then sql at execute need to be prefixed with letter N as below
e.g.
Exec N'Select bla..'
the N defines string literal is unicode.
One more option:
When you:
You can use shell redirection:
puts %x[cat bogus.txt].inspect
=> ""
puts %x[cat bogus.txt 2>&1].inspect
=> "cat: bogus.txt: No such file or directory\n"
The 2>&1
syntax works across Linux, Mac and Windows since the early days of MS-DOS.
If you want to make a diff with more than one file, with the method specified by @mipadi:
E.g. diff between HEAD
and your master
, to find all .coffee
files:
git diff master..HEAD -- `find your_search_folder/ -name '*.coffee'`
This will recursively search your your_search_folder/
for all .coffee
files and make a diff between them and their master
versions.
How about something like this: http://jsfiddle.net/EgLKV/3/
Its done by using position:absolute
and z-index
to place the text over the image.
#container {_x000D_
height: 400px;_x000D_
width: 400px;_x000D_
position: relative;_x000D_
}_x000D_
#image {_x000D_
position: absolute;_x000D_
left: 0;_x000D_
top: 0;_x000D_
}_x000D_
#text {_x000D_
z-index: 100;_x000D_
position: absolute;_x000D_
color: white;_x000D_
font-size: 24px;_x000D_
font-weight: bold;_x000D_
left: 150px;_x000D_
top: 350px;_x000D_
}
_x000D_
<div id="container">_x000D_
<img id="image" src="http://www.noao.edu/image_gallery/images/d4/androa.jpg" />_x000D_
<p id="text">_x000D_
Hello World!_x000D_
</p>_x000D_
</div>
_x000D_
If you have issue with writing into an existing xls file because it is already created you need to put checking part like below:
PATH='filename.xlsx'
if os.path.isfile(PATH):
print "File exists and will be overwrite NOW"
else:
print "The file is missing, new one is created"
... and here part with the data you want to add
Assuming that onMove
is an event handler, it is likely that its context is something other than the instance of MyContainer
, i.e. this
points to something different.
You can manually bind the context of the function during the construction of the instance via Function.bind
:
class MyContainer extends Component {
constructor(props) {
super(props);
this.onMove = this.onMove.bind(this);
this.test = "this is a test";
}
onMove() {
console.log(this.test);
}
}
Also, test !== testVariable
.
If you use java 1.5, you can look at ManagementFactory.getMemoryMXBean() which give you numbers on all kinds of memory. heap and non-heap, perm-gen.
A good example can be found there http://www.freshblurbs.com/explaining-java-lang-outofmemoryerror-permgen-space
java.lang.Thread.activeCount()
It will return the number of active threads in the current thread's thread group.
docs: http://docs.oracle.com/javase/7/docs/api/java/lang/Thread.html#activeCount()
For Elasticbeanstalk environments, you can apply a key-value pair to a running instance like this:
Your nameContent scope is only inside first function. You'll never get it's value that way.
var nameContent; // now it's global!
function first(){
nameContent = document.getElementById('full_name').value;
}
function second() {
first();
y=nameContent;
alert(y);
}
second();
This is an old question and I don't quite understand the business need of listening for route changes to push a route change; seems roundabout.
BUT if you ended up here because all you wanted was to update the 'page_path'
on a react-router route change for google analytics / global site tag / something similar, here's a hook you can now use. I wrote it based on the accepted answer:
useTracking.js
import { useEffect } from 'react'
import { useHistory } from 'react-router-dom'
export const useTracking = (trackingId) => {
const { listen } = useHistory()
useEffect(() => {
const unlisten = listen((location) => {
// if you pasted the google snippet on your index.html
// you've declared this function in the global
if (!window.gtag) return
window.gtag('config', trackingId, { page_path: location.pathname })
})
// remember, hooks that add listeners
// should have cleanup to remove them
return unlisten
}, [trackingId, listen])
}
You should use this hook once in your app, somewhere near the top but still inside a router. I have it on an App.js
that looks like this:
App.js
import * as React from 'react'
import { BrowserRouter, Route, Switch } from 'react-router-dom'
import Home from './Home/Home'
import About from './About/About'
// this is the file above
import { useTracking } from './useTracking'
export const App = () => {
useTracking('UA-USE-YOURS-HERE')
return (
<Switch>
<Route path="/about">
<About />
</Route>
<Route path="/">
<Home />
</Route>
</Switch>
)
}
// I find it handy to have a named export of the App
// and then the default export which wraps it with
// all the providers I need.
// Mostly for testing purposes, but in this case,
// it allows us to use the hook above,
// since you may only use it when inside a Router
export default () => (
<BrowserRouter>
<App />
</BrowserRouter>
)
Forward Warning
Just a quick headsup to those visiting this and other similar threads looking for a way to parallelize EntityFramework using async+await+task tool-set: The pattern shown here is sound, however, when it comes to the special snowflake of EF you will not achieve parallel execution unless and until you use a separate (new) db-context-instance inside each and every *Async() call involved.
This sort of thing is necessary due to inherent design limitations of ef-db-contexts which forbid running multiple queries in parallel in the same ef-db-context instance.
Capitalizing on the answers already given, this is the way to make sure that you collect all values even in the case that one or more of the tasks results in an exception:
public async Task<string> Foobar() {
async Task<string> Awaited(Task<Cat> a, Task<House> b, Task<Tesla> c) {
return DoSomething(await a, await b, await c);
}
using (var carTask = BuyCarAsync())
using (var catTask = FeedCatAsync())
using (var houseTask = SellHouseAsync())
{
if (carTask.Status == TaskStatus.RanToCompletion //triple
&& catTask.Status == TaskStatus.RanToCompletion //cache
&& houseTask.Status == TaskStatus.RanToCompletion) { //hits
return Task.FromResult(DoSomething(catTask.Result, carTask.Result, houseTask.Result)); //fast-track
}
cat = await catTask;
car = await carTask;
house = await houseTask;
//or Task.AwaitAll(carTask, catTask, houseTask);
//or await Task.WhenAll(carTask, catTask, houseTask);
//it depends on how you like exception handling better
return Awaited(catTask, carTask, houseTask);
}
}
An alternative implementation that has more or less the same performance characteristics could be:
public async Task<string> Foobar() {
using (var carTask = BuyCarAsync())
using (var catTask = FeedCatAsync())
using (var houseTask = SellHouseAsync())
{
cat = catTask.Status == TaskStatus.RanToCompletion ? catTask.Result : (await catTask);
car = carTask.Status == TaskStatus.RanToCompletion ? carTask.Result : (await carTask);
house = houseTask.Status == TaskStatus.RanToCompletion ? houseTask.Result : (await houseTask);
return DoSomething(cat, car, house);
}
}
Based on what i've searched, i think this is the best answers that i've found out Android 6.0 multiple permissions
Your problem is basically that you never specified the right path to the file.
Try instead, from your main script:
from folder.file import Klasa
Or, with from folder import file
:
from folder import file
k = file.Klasa()
Or again:
import folder.file as myModule
k = myModule.Klasa()
Simply use Volley to get the ip from this site
RequestQueue queue = Volley.newRequestQueue(this);
String urlip = "http://checkip.amazonaws.com/";
StringRequest stringRequest = new StringRequest(Request.Method.GET, urlip, new Response.Listener<String>() {
@Override
public void onResponse(String response) {
txtIP.setText(response);
}
}, new Response.ErrorListener() {
@Override
public void onErrorResponse(VolleyError error) {
txtIP.setText("didnt work");
}
});
queue.add(stringRequest);
Issue #2 now can be solved using BroadcastAPI.
At the moment it's only available in Chrome, Firefox, and Opera.
var bc = new BroadcastChannel('test_channel');
bc.onmessage = function (ev) {
if(ev.data && ev.data.url===window.location.href){
alert('You cannot open the same page in 2 tabs');
}
}
bc.postMessage(window.location.href);
You can use canActive
in your routes, like so:
import { Injectable } from '@angular/core';
import { Router } from '@angular/router';
import { CanActivate } from '@angular/router';
import { AuthService } from './auth.service';
@Injectable()
export class AuthGuard implements CanActivate {
constructor(private auth: AuthService, private router: Router) {}
canActivate() {
// If user is not logged in we'll send them to the homepage
if (!this.auth.loggedIn()) {
this.router.navigate(['']);
return false;
}
return true;
}
}
const appRoutes: Routes = [
{
path: '', redirectTo: '/deals', pathMatch: 'full'
},
{
path: 'special',
component: PrivateDealsComponent,
/* We'll use the canActivate API and pass in our AuthGuard.
Now any time the /special route is hit, the AuthGuard will run
first to make sure the user is logged in before activating and
loading this route. */
canActivate: [AuthGuard]
}
];
Taken from: https://auth0.com/blog/angular-2-authentication
I know this is an old question but I found a way to get the fields by index.
You can do it by using the Object.keys
method.
When you call the Object.keys
method it returns the keys in the order they were assigned (See the example below). I tested the method below in the following browsers:
I also wrote a small extension to the object class so you can call the nth key of the object using getByIndex
.
// Function to get the nth key from the object_x000D_
Object.prototype.getByIndex = function(index) {_x000D_
return this[Object.keys(this)[index]];_x000D_
};_x000D_
_x000D_
var obj1 = {_x000D_
"set1": [1, 2, 3],_x000D_
"set2": [4, 5, 6, 7, 8],_x000D_
"set3": [9, 10, 11, 12]_x000D_
};_x000D_
_x000D_
var obj2 = {_x000D_
"set2": [4, 5, 6, 7, 8],_x000D_
"set1": [1, 2, 3],_x000D_
"set3": [9, 10, 11, 12]_x000D_
};_x000D_
_x000D_
log('-- Obj1 --');_x000D_
log(obj1);_x000D_
log(Object.keys(obj1));_x000D_
log(obj1.getByIndex(0));_x000D_
_x000D_
_x000D_
log('-- Obj2 --');_x000D_
log(obj2);_x000D_
log(Object.keys(obj2));_x000D_
log(obj2.getByIndex(0));_x000D_
_x000D_
_x000D_
// Log function to make the snippet possible_x000D_
function log(x) {_x000D_
var d = document.createElement("div");_x000D_
if (typeof x === "object") {_x000D_
x = JSON.stringify(x, null, 4);_x000D_
}_x000D_
d.textContent= x;_x000D_
document.body.appendChild(d);_x000D_
}
_x000D_
While this question is old and answered, I have yet another fairly interesting solution:
var funcs = [];
for (var i = 0; i < 3; i++) {
funcs[i] = function() {
console.log("My value: " + i);
};
}
for (var i = 0; i < 3; i++) {
funcs[i]();
}
The change is so small it's almost difficult to see what I did. I switched the second iterator from a j to an i. This somehow refreshes the state of i in time to give you the desired result. I did this by accident but it makes sense considering previous answers.
I wrote this up to point out this small, yet very important difference. Hope that helps to clear up some confusion for other learners like me.
Note: I am not sharing this because I think it's the right answer. This is a flakey solution that probably will break under certain circumstances. Actually, I'm quite amazed that it really works.
Go got XAMPP->mysql->bin->my.ini
open the file with an editor and add 'skip-grant-tables' after mysql.
Only primitive types are supported for serialization by config parser. I would use JSON or YAML for that kind of requirement.
In the Drupal or Wordpress CMS (and likely others), if you are trying to make some custom php code appear not to exist (unless some condition is met), the following works well by making the CMS's 404 handler take over:
<?php
if(condition){
do stuff;
} else {
include('index.php');
}
?>
Hope it will help someone someday. I was making a small POC and came across this. A button, onClick display contents of the folder. Below is the HTML,
<input type=button onClick="parent.location='file:///C:/Users/' " value='Users'>
This looks like valid Python code, so if the file is on your project's classpath (and not in some other directory or in arbitrary places) one way would be just to rename the file to "abc.py" and import it as a module, using import abc
. You can even update the values using the reload
function later. Then access the values as abc.path1
etc.
Of course, this can be dangerous in case the file contains other code that will be executed. I would not use it in any real, professional project, but for a small script or in interactive mode this seems to be the simplest solution.
Just put the abc.py
into the same directory as your script, or the directory where you open the interactive shell, and do import abc
or from abc import *
.
This is a very old answer. I definitely won't recommend Apache's client anymore. Instead use either:
First of all, request a permission to access network, add following to your manifest:
<uses-permission android:name="android.permission.INTERNET" />
Then the easiest way is to use Apache http client bundled with Android:
HttpClient httpclient = new DefaultHttpClient();
HttpResponse response = httpclient.execute(new HttpGet(URL));
StatusLine statusLine = response.getStatusLine();
if(statusLine.getStatusCode() == HttpStatus.SC_OK){
ByteArrayOutputStream out = new ByteArrayOutputStream();
response.getEntity().writeTo(out);
String responseString = out.toString();
out.close();
//..more logic
} else{
//Closes the connection.
response.getEntity().getContent().close();
throw new IOException(statusLine.getReasonPhrase());
}
If you want it to run on separate thread I'd recommend extending AsyncTask:
class RequestTask extends AsyncTask<String, String, String>{
@Override
protected String doInBackground(String... uri) {
HttpClient httpclient = new DefaultHttpClient();
HttpResponse response;
String responseString = null;
try {
response = httpclient.execute(new HttpGet(uri[0]));
StatusLine statusLine = response.getStatusLine();
if(statusLine.getStatusCode() == HttpStatus.SC_OK){
ByteArrayOutputStream out = new ByteArrayOutputStream();
response.getEntity().writeTo(out);
responseString = out.toString();
out.close();
} else{
//Closes the connection.
response.getEntity().getContent().close();
throw new IOException(statusLine.getReasonPhrase());
}
} catch (ClientProtocolException e) {
//TODO Handle problems..
} catch (IOException e) {
//TODO Handle problems..
}
return responseString;
}
@Override
protected void onPostExecute(String result) {
super.onPostExecute(result);
//Do anything with response..
}
}
You then can make a request by:
new RequestTask().execute("http://stackoverflow.com");
This flag worked for me at v30.0.1599.101 m
The warning "You are using an unsupported command-line flag" can be ignored. The flag still works (as of Chrome v86).
Small update: Incase if you get below error in regard to node-sass follow the steps given below.
code EPERM
npm ERR! syscall unlink
steps to solve the issue:
Wanted to comment on the last answer, but without login it’s only possible to make an answer:
To get rid of the "read only error" just stop the device immediately after it’s ready. My script looks as follows:
#!/bin/bash
~/bin/AndroidSdk/tools/emulator @Nexus_6P_API_23 -no-boot-anim &
adb wait-for-device
adb shell stop
adb remount
adb push GmsCore.apk /system/priv-app
adb push GoogleServicesFramework.apk /system/priv-app
adb push GoogleLoginService.apk /system/priv-app
adb push Phonesky.apk /system/priv-app
adb shell start
'use strict';
function previousPage() {
if (window.location.pathname.split('/').filter(({ length }) => length > 0).length > 0) {
window.history.back();
}
}
window.location.pathname
will give you the current URI. For instance https://domain/question/1234/i-have-a-problem
will give /question/1234/i-have-a-problem
. See the documentation about window.location for more informations.
Next, the call to split()
will give us all fragments of that URI. so if we take our previous URI, we will have something like ["", "question", "1234", "i-have-a-problem"]
. See the documentation about String.prototype.split() for more informations.
The call to filter()
is here to filter out the empty string generated by the backward slash. It will basically return only the fragment URI that have a length greater than 1 (non-empty string). So we would have something like ["question", "1234", "i-have-a-question"]
. This could have been writen like so:
'use strict';
window.location.pathname.split('/').filter(function(fragment) {
return fragment.length > 0;
});
See the documentation about Array.prototype.filter() and the Destructuring assignment for more informations.
Now, if the user tries to go back while being on https://domain/
, we wont trigger the if-statement, and so wont trigger the window.history.back()
method so the user will stay in our website. This URL will be equivalent to []
which has a length of 0
, and 0 > 0
is false. Hence, silently failing. Of course, you can log something or have another action if you want.
'use strict';
function previousPage() {
if (window.location.pathname.split('/').filter(({ length }) => length > 0).length > 0) {
window.history.back();
} else {
alert('You cannot go back any further...');
}
}
Of course, this solution wont work if the browser do not support the History API. Check the documentation to know more about it before using this solution.
Instead of:
for file in $(find . -name '*.js')
do
java -jar config/yuicompressor-2.4.2.jar --type js $file -o $file
done
...and since you don't define which subdirectory you want to exclude, you could use:
for file in $(find *.js -maxdepth 0 -name '*.js')
do
java -jar config/yuicompressor-2.4.2.jar --type js $file -o $file
done
This syntax will exclude all subdirectories.
Take a look at the example below: under my tmp directory I have an huge "archive" subdirectory which contains 17000-4640=12360 files. And this directory is located on a slow NFS. While the 1st syntax scans the "archive" subdirectory and performs poorly, the 2nd syntax only scans the "*pdf" files contained in my current dir and performs... not that bad.
[tmp]$ time (find . -name "*pdf" | wc -l)
17000
real 0m40.479s
user 0m0.423s
sys 0m5.606s
[tmp]$ time (find *pdf -maxdepth 0 -name "*pdf" | wc -l)
4640
real 0m7.778s
user 0m0.113s
sys 0m1.136s
That 2nd syntax is quite interesting: in the following example I want to check if file or60runm50958.pdf exists and is more than 20 minutes old. See for yourself how the 2nd syntax is more efficient. This is because it avoids scanning the archive subdirectory.
[tmp]$ time find . -name or60runm50958.pdf -mmin +20
./or60runm50958.pdf
real 0m51.145s
user 0m0.529s
sys 0m6.243s
[tmp]$ time find or60runm50958.pdf -maxdepth 0 -name or60runm50958.pdf -mmin +20
or60runm50958.pdf
real 0m0.004s
user 0m0.000s
sys 0m0.002s
This isn't exactly the issue I had, but if anyone is looking to convert a BindingList of any type to List of the same type, then this is how it is done:
var list = bindingList.ToDynamicList();
Also, if you're assigning BindingLists of dynamic types to a DataGridView.DataSource, then make sure you declare it first as IBindingList so the above works.
I agree with Jarek, and I furthermore note that the ISO offset separator character is a colon, so I think the final answer should be:
isodate.datetime_isoformat(datetime.datetime.now()) + str.format('{0:+06.2f}', -float(time.timezone) / 3600).replace('.', ':')
Hello sought a solution to make an Ajax form work with Google Tag Manager (GTM), the return false prevented the completion and submit the activation of the event in real time on google analytics solution was to change the return false by e.preventDefault (); that worked correctly follows the code:
$("#Contact-Form").submit(function(e) {
e.preventDefault();
...
});
The :
is a bitfield. As for !!
, that is logical double negation and so returns 0
for false or 1
for true. And the -
is a minus sign, i.e. arithmetic negation.
It's all just a trick to get the compiler to barf on invalid inputs.
Consider BUILD_BUG_ON_ZERO
. When -!!(e)
evaluates to a negative value, that produces a compile error. Otherwise -!!(e)
evaluates to 0, and a 0 width bitfield has size of 0. And hence the macro evaluates to a size_t
with value 0.
The name is weak in my view because the build in fact fails when the input is not zero.
BUILD_BUG_ON_NULL
is very similar, but yields a pointer rather than an int
.
[EDIT] Years later, I've come back to say: don't do this! See What's wrong with XOR encryption? for details.
A very simple, easy two-way encrytpion is XOR encryption.
mypass
.mypassmypassmypass...
)mypassmypassmypass...
).I think the true answer is that jQuery was developed long before querySelector/querySelectorAll
became available in all major browsers.
Initial release of jQuery was in 2006. In fact, even jQuery was not the first which implemented CSS selectors.
IE was the last browser to implement querySelector/querySelectorAll
. Its 8th version was released in 2009.
So now, DOM elements selectors is not the strongest point of jQuery anymore. However, it still has a lot of goodies up its sleeve, like shortcuts to change element's css and html content, animations, events binding, ajax.
The answers provided above are good but let me just chip in, useState
is async so if your next state is dependent on your previous state it is best you pass useState
a callback. See the example below:
import { useState } from 'react';
function Example() {
const [count, setCount] = useState(0);
return (
<div>
<p>You clicked {count} times</p>
// passing a callback to useState to update count
<button onClick={() => setCount(count => count + 1)}>
Click me
</button>
</div>
);
}
This is the recommended way if your new state depends on computation from the old state.
Every distribution has a default shell. Bash is the default on the majority of the systems. If you happen to work on a system that has a different default shell, then the scripts might not work as intended if they are written specific for Bash.
Bash has evolved over the years taking code from ksh
and sh
.
Adding #!/bin/bash
as the first line of your script, tells the OS to invoke the specified shell
to execute the commands that follow in the script.
#!
is often referred to as a "hash-bang", "she-bang" or "sha-bang".
You can write a jQuery function like this to determine if an element is in the viewport.
Include this somewhere after jQuery is included:
$.fn.isInViewport = function() {
var elementTop = $(this).offset().top;
var elementBottom = elementTop + $(this).outerHeight();
var viewportTop = $(window).scrollTop();
var viewportBottom = viewportTop + $(window).height();
return elementBottom > viewportTop && elementTop < viewportBottom;
};
Sample usage:
$(window).on('resize scroll', function() {
if ($('#Something').isInViewport()) {
// do something
} else {
// do something else
}
});
Note that this only checks the top and bottom positions of elements, it doesn't check if an element is outside of the viewport horizontally.
I had the same error on January 2018 with xcode 8.2.1
Before I try to open xcode I couldn't because the system was updating. I tried sometime later and it let me working on it, and then I got the same error.
I followed most of the solutions described in this article but they didn't work for me.
Then I remembered the message about the system updating and I tried to reboot the machine.
And that did the magic. It worked for me.
IWebElement element = _browserInstance.Driver.FindElement(By.XPath("//Select"));
IList<IWebElement> AllDropDownList = element.FindElements(By.XPath("//option"));
int DpListCount = AllDropDownList.Count;
for (int i = 0; i < DpListCount; i++)
{
if (AllDropDownList[i].Text == "nnnnnnnnnnn")
{
AllDropDownList[i].Click();
_browserInstance.ScreenCapture("nnnnnnnnnnnnnnnnnnnnnn");
}
}
Use the str.translate() method.
Presuming you will be doing this often:
(1) Once, create a string containing all the characters you wish to delete:
delchars = ''.join(c for c in map(chr, range(256)) if not c.isalnum())
(2) Whenever you want to scrunch a string:
scrunched = s.translate(None, delchars)
The setup cost probably compares favourably with re.compile; the marginal cost is way lower:
C:\junk>\python26\python -mtimeit -s"import string;d=''.join(c for c in map(chr,range(256)) if not c.isalnum());s=string.printable" "s.translate(None,d)"
100000 loops, best of 3: 2.04 usec per loop
C:\junk>\python26\python -mtimeit -s"import re,string;s=string.printable;r=re.compile(r'[\W_]+')" "r.sub('',s)"
100000 loops, best of 3: 7.34 usec per loop
Note: Using string.printable as benchmark data gives the pattern '[\W_]+' an unfair advantage; all the non-alphanumeric characters are in one bunch ... in typical data there would be more than one substitution to do:
C:\junk>\python26\python -c "import string; s = string.printable; print len(s),repr(s)"
100 '0123456789abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ!"#$%&\'()*+,-./:;=>?@[\\]^_`{|}~ \t\n\r\x0b\x0c'
Here's what happens if you give re.sub a bit more work to do:
C:\junk>\python26\python -mtimeit -s"d=''.join(c for c in map(chr,range(256)) if not c.isalnum());s='foo-'*25" "s.translate(None,d)"
1000000 loops, best of 3: 1.97 usec per loop
C:\junk>\python26\python -mtimeit -s"import re;s='foo-'*25;r=re.compile(r'[\W_]+')" "r.sub('',s)"
10000 loops, best of 3: 26.4 usec per loop
Post data to backend using retrofit
implementation 'com.squareup.retrofit2:retrofit:2.8.1'
implementation 'com.squareup.retrofit2:converter-gson:2.8.1'
implementation 'com.google.code.gson:gson:2.8.6'
implementation 'com.squareup.okhttp3:logging-interceptor:4.5.0'
public interface UserService {
@POST("users/")
Call<UserResponse> userRegistration(@Body UserRegistration
userRegistration);
}
public class ApiClient {
private static Retrofit getRetrofit(){
HttpLoggingInterceptor httpLoggingInterceptor = new HttpLoggingInterceptor();
httpLoggingInterceptor.setLevel(HttpLoggingInterceptor.Level.BODY);
OkHttpClient okHttpClient = new OkHttpClient
.Builder()
.addInterceptor(httpLoggingInterceptor)
.build();
Retrofit retrofit = new Retrofit.Builder()
.baseUrl("http://api.larntech.net/")
.addConverterFactory(GsonConverterFactory.create())
.client(okHttpClient)
.build();
return retrofit;
}
public static UserService getService(){
UserService userService = getRetrofit().create(UserService.class);
return userService;
}
}
This isn't easy, unless your regexp engine has special support for it. The easiest way would be to use a negative-match option, for example:
$var !~ /^foo$/
or die "too much foo";
If not, you have to do something evil:
$var =~ /^(($)|([^f].*)|(f[^o].*)|(fo[^o].*)|(foo.+))$/
or die "too much foo";
That one basically says "if it starts with non-f
, the rest can be anything; if it starts with f
, non-o
, the rest can be anything; otherwise, if it starts fo
, the next character had better not be another o
".
I got the error using TFS, my AssemblyInfo wasn't mapped in the branch I was working on.
In Ubuntu local user command prompt, but not root user, type
sudo -u postgres createuser username
username above should match the name indicated in the message "FATAL: role 'username' does not exist."
Enter password for username.
Then re-enter the command that generated role does not exist message.
You need to roll your own method to eliminate the files you don't want.
This isn't easy with the built in tools, but you could use RegExKit Lite to assist with finding the elements in the returned array you are interested in. According to the release notes this should work in both Cocoa and Cocoa-Touch applications.
Here's the demo code I wrote up in about 10 minutes. I changed the < and > to " because they weren't showing up inside the pre block, but it still works with the quotes. Maybe somebody who knows more about formatting code here on StackOverflow will correct this (Chris?).
This is a "Foundation Tool" Command Line Utility template project. If I get my git daemon up and running on my home server I'll edit this post to add the URL for the project.
#import "Foundation/Foundation.h" #import "RegexKit/RegexKit.h" @interface MTFileMatcher : NSObject { } - (void)getFilesMatchingRegEx:(NSString*)inRegex forPath:(NSString*)inPath; @end int main (int argc, const char * argv[]) { NSAutoreleasePool * pool = [[NSAutoreleasePool alloc] init]; // insert code here... MTFileMatcher* matcher = [[[MTFileMatcher alloc] init] autorelease]; [matcher getFilesMatchingRegEx:@"^.+\\.[Jj][Pp][Ee]?[Gg]$" forPath:[@"~/Pictures" stringByExpandingTildeInPath]]; [pool drain]; return 0; } @implementation MTFileMatcher - (void)getFilesMatchingRegEx:(NSString*)inRegex forPath:(NSString*)inPath; { NSArray* filesAtPath = [[[NSFileManager defaultManager] directoryContentsAtPath:inPath] arrayByMatchingObjectsWithRegex:inRegex]; NSEnumerator* itr = [filesAtPath objectEnumerator]; NSString* obj; while (obj = [itr nextObject]) { NSLog(obj); } } @end
If your class performs all of its initialization in the constructor, then @PostConstruct
is indeed redundant.
However, if your class has its dependencies injected using setter methods, then the class's constructor cannot fully initialize the object, and sometimes some initialization needs to be performed after all the setter methods have been called, hence the use case of @PostConstruct
.
type T1 = Omit<XYZ, "z"> // { x: number; y: number; }
type T2 = Omit<XYZ, "y" | "z"> // { x: number; }
type Keys_StringExcluded<T> =
{ [K in keyof T]: T[K] extends string ? never : K }[keyof T]
type XYZ = { x: number; y: string; z: number; }
type T3a = Pick<XYZ, Keys_StringExcluded<XYZ>> // { x: number; z: number; }
Shorter version with TS 4.1 key remapping / as
clause in mapped types (PR):
type T3b = { [K in keyof XYZ as XYZ[K] extends string ? never : K]: XYZ[K] }
// { x: number; z: number; }
string
patterntype OmitGet<T> = {[K in keyof T as K extends `get${infer _}` ? never : K]: T[K]}
type XYZ2 = { getA: number; b: string; getC: boolean; }
type T4 = OmitGet<XYZ2> // { b: string; }
Note: Above template literal types are supported with TS 4.1.
Note 2: You can also write get${string}
instead of get${infer _}
here.
Pick
, Omit
and other utility types
How to Pick and rename certain keys using Typescript? (rename instead of exclude)
The below trick worked for me.
1) Comment/delete the below configuration from server.xml file (inside conf folder) of tomcat.
2) Delete the existing ROOT folder (If any) residing inside tomcat webapps folder. And rename your war (e.g: test.war ) file to ROOT.war.
Remember that while renaming war file to ROOT.war "ROOT" should be in caps.
Limitation: You can deploy only one application inside one tomcat instance.
You can use rfind()
or rindex()
Python2 links: rfind()
rindex()
>>> s = 'Hello StackOverflow Hi everybody'
>>> print( s.rfind('H') )
20
>>> print( s.rindex('H') )
20
>>> print( s.rfind('other') )
-1
>>> print( s.rindex('other') )
Traceback (most recent call last):
File "<stdin>", line 1, in <module>
ValueError: substring not found
The difference is when the substring is not found, rfind()
returns -1
while rindex()
raises an exception ValueError
(Python2 link: ValueError
).
If you do not want to check the rfind()
return code -1
, you may prefer rindex()
that will provide an understandable error message. Else you may search for minutes where the unexpected value -1
is coming from within your code...
>>> txt = '''first line
... second line
... third line'''
>>> txt.rfind('\n')
22
>>> txt.rindex('\n')
22
Result is shown in the following code as column number (8,9 etc.):
Dim lastColumn As Long
lastColumn = Sheet1.Cells(1, Columns.Count).End(xlToLeft).Column
MsgBox lastColumn
Result is shown in the following code as letter (H,I etc.):
Dim lastColumn As Long
lastColumn = Sheet1.Cells(1, Columns.Count).End(xlToLeft).Column
MsgBox Split(Sheet1.Cells(1, lastColumn).Address, "$")(1)
Here's a method you can use in your code to convert a url string and map of parameters to a valid encoded url string containing the query parameters.
String addQueryStringToUrlString(String url, final Map<Object, Object> parameters) throws UnsupportedEncodingException {
if (parameters == null) {
return url;
}
for (Map.Entry<Object, Object> parameter : parameters.entrySet()) {
final String encodedKey = URLEncoder.encode(parameter.getKey().toString(), "UTF-8");
final String encodedValue = URLEncoder.encode(parameter.getValue().toString(), "UTF-8");
if (!url.contains("?")) {
url += "?" + encodedKey + "=" + encodedValue;
} else {
url += "&" + encodedKey + "=" + encodedValue;
}
}
return url;
}
You can do it by running with following command.
php -S localhost:8888
There may be situations when df.reset_index()
cannot be used (e.g., when you need the index, too). In this case, use index.get_level_values()
to access index values directly:
df['Trial'] = df.index.get_level_values(0)
df['measurement'] = df.index.get_level_values(1)
This will assign index values to individual columns and keep the index.
See the docs for further info.
In SQL SERVER, this is the answer
Declare @t table(TITLE VARCHAR(100), DESCRIPTION VARCHAR(100))
INSERT INTO @t SELECT 'test1', 'value blah blah value'
INSERT INTO @t SELECT 'test2','value test'
INSERT INTO @t SELECT 'test3','test test test'
INSERT INTO @t SELECT 'test4','valuevaluevaluevaluevalue'
SELECT TITLE,DESCRIPTION,Count = (LEN(DESCRIPTION) - LEN(REPLACE(DESCRIPTION, 'value', '')))/LEN('value')
FROM @t
Result
TITLE DESCRIPTION Count
test1 value blah blah value 2
test2 value test 1
test3 test test test 0
test4 valuevaluevaluevaluevalue 5
I don't have MySQL install, but goggled to find the Equivalent of LEN is LENGTH while REPLACE is same.
So the equivalent query in MySql should be
SELECT TITLE,DESCRIPTION, (LENGTH(DESCRIPTION) - LENGTH(REPLACE(DESCRIPTION, 'value', '')))/LENGTH('value') AS Count
FROM <yourTable>
Please let me know if it worked for you in MySql also.
If it is a c-string (null-terminated array of type char), you can do something like:
#include <stdlib.h>
char str[] = "3.14159";
double num = atof(str);
If it is a C++ string, just use the c_str() method:
double num = atof( cppstr.c_str() );
atof() will convert the string to a double, returning 0 on failure. The function is documented here: http://www.cplusplus.com/reference/clibrary/cstdlib/atof.html
Make sure your refs for pushing are correct. This tutorial is pretty great, right from the documentation:
http://wiki.eclipse.org/EGit/User_Guide#GitHub_Tutorial
You can clone directly from GitHub, you choose where you clone that repository. And when you import that repository to Eclipse, you choose what refspec to push into upstream.
Click on the Git Repository workspace view, and make sure your remote refs are valid. Make sure you are pointing to the right local branch and pushing to the correct remote branch.
For end of line use:
git diff --ignore-space-at-eol
Instead of what are you using currently:
git diff -w (--ignore-all-space)
For start of line... you are out of luck if you want a built in solution.
However, if you don't mind getting your hands dirty there's a rather old patch floating out there somewhere that adds support for "--ignore-space-at-sol".
Command EXPOSE
in your Dockerfile lets you bind container's port to some port on the host machine but it doesn't do anything else.
When running container, to bind ports specify -p
option.
So let's say you expose port 5000. After building the image when you run the container, run docker run -p 5000:5000 name
. This binds container's port 5000 to your laptop/computers port 5000 and that portforwarding lets container to receive outside requests.
This should do it.
Once you have IIS Express installed (the easiest way is through Microsoft Web Platform Installer), you will find the executable file in %PROGRAMFILES%\IIS Express
(%PROGRAMFILES(x86)%\IIS Express
on x64 architectures) and its called iisexpress.exe
.
To see all the possible command-line options, just run:
iisexpress /?
and the program detailed help will show up.
If executed without parameters, all the sites defined in the configuration file and marked to run at startup will be launched. An icon in the system tray will show which sites are running.
There are a couple of useful options once you have some sites created in the configuration file (found in %USERPROFILE%\Documents\IISExpress\config\applicationhost.config
): the /site
and /siteId
.
With the first one, you can launch a specific site by name:
iisexpress /site:SiteName
And with the latter, you can launch by specifying the ID:
iisexpress /siteId:SiteId
With this, if IISExpress is launched from the command-line, a list of all the requests made to the server will be shown, which can be quite useful when debugging.
Finally, a site can be launched by specifying the full directory path. IIS Express will create a virtual configuration file and launch the site (remember to quote the path if it contains spaces):
iisexpress /path:FullSitePath
This covers the basic IISExpress usage from the command line.
jQuery makes it easy to set any attributes for an element - just use the .attr()
method:
$(document).ready(function() {
$("input").attr({
"max" : 10, // substitute your own
"min" : 2 // values (or variables) here
});
});
The document ready handler is not required if your script block appears after the element(s) you want to manipulate.
Using a selector of "input"
will set the attributes for all inputs though, so really you should have some way to identify the input in question. If you gave it an id you could say:
$("#idHere").attr(...
...or with a class:
$(".classHere").attr(...
Do it java 8 way in just 1 line:
String.join("", arr);
I'd split both of your paths at the directory level. From there, find the point of divergence and work your way back to the assembly folder, prepending a '../' everytime you pass a directory.
Keep in mind however, that an absolute path works everywhere and is usually easier to read than a relative one. I personally wouldn't show an user a relative path unless it was absolutely necessary.
Apply float:left;
to both of your divs should make them stand side by side.
Doing:
git checkout master
git pull origin
will fetch and merge the origin/master
branch (you may just say git pull
as origin is the default).
My error was also related to not finding the required .so
file by a service.
I used LD_LIBRARY_PATH
variable to priorities the path picked up by the linker to search the required lib.
I copied both service and .so
file in a folder and fed it to LD_LIBRARY_PATH
variable as
LD_LIBRARY_PATH=. ./service
being in the same folder I have given the above command and it worked.
In Sailsjs there are two ways to configure all the stuff, first is to configure in config folder with each one has their separate files (like database connection regarding settings lies within connections.js ). And second is configure on environment base file structure, each environment files presents in config/env
folder and each file contains settings for particular env.
Sails first looks in config/env folder and then look forward to config/ *.js
Now lets setup ssl in config/local.js
.
var local = {
port: process.env.PORT || 1337,
environment: process.env.NODE_ENV || 'development'
};
if (process.env.NODE_ENV == 'production') {
local.ssl = {
secureProtocol: 'SSLv23_method',
secureOptions: require('constants').SSL_OP_NO_SSLv3,
ca: require('fs').readFileSync(__dirname + '/path/to/ca.crt','ascii'),
key: require('fs').readFileSync(__dirname + '/path/to/jsbot.key','ascii'),
cert: require('fs').readFileSync(__dirname + '/path/to/jsbot.crt','ascii')
};
local.port = 443; // This port should be different than your default port
}
module.exports = local;
Alternative you can add this in config/env/production.js too. (This snippet also show how to handle multiple CARoot certi)
Or in production.js
module.exports = {
port: 443,
ssl: {
secureProtocol: 'SSLv23_method',
secureOptions: require('constants').SSL_OP_NO_SSLv3,
ca: [
require('fs').readFileSync(__dirname + '/path/to/AddTrustExternalCARoot.crt', 'ascii'),
require('fs').readFileSync(__dirname + '/path/to/COMODORSAAddTrustCA.crt', 'ascii'),
require('fs').readFileSync(__dirname + '/path/to/COMODORSADomainValidationSecureServerCA.crt', 'ascii')
],
key: require('fs').readFileSync(__dirname + '/path/to/jsbot.key', 'ascii'),
cert: require('fs').readFileSync(__dirname + '/path/to/jsbot.crt', 'ascii')
}
};
Here ws is Web Socket and wss represent Secure Web Socket, as we set up ssl then now http and ws both requests become secure and transform to https and wss respectively.
There are many source from our app will receive request like any blog post, social media post but our server runs only on https so when any request come from http it gives “This site can’t be reached” error in client browser. And we loss our website traffic. So we must redirect http request to https, same rules allow for websocket otherwise socket will fails.
So we need to run same server on port 80 (http), and divert all request to port 443(https). Sails first compile config/bootstrap.js file before lifting server. Here we can start our express server on port 80.
In config/bootstrap.js (Create http server and redirect all request to https)
module.exports.bootstrap = function(cb) {
var express = require("express"),
app = express();
app.get('*', function(req, res) {
if (req.isSocket)
return res.redirect('wss://' + req.headers.host + req.url)
return res.redirect('https://' + req.headers.host + req.url)
}).listen(80);
cb();
};
Now you can visit http://www.yourdomain.com, it will redirect to https://www.yourdomain.com
Another solution is you could use a background image to mimic the look of a left border
You might need to tweak for IE (as per usual) but it's worth a shot if that's the design you are going for.
Append extra an [
and ]
to the beginning and end of the string. This will make it an array. Then use eval()
or some safe JSON serializer to serialize the string and make it a real JavaScript datatype.
You should use https://github.com/douglascrockford/JSON-js instead of eval()
. eval is only if you're doing some quick debugging/testing.
This example uses an inverted scanset, so scanf keeps taking in values until it encounters a '\n'-- newline, so spaces get saved as well
#include <stdio.h>
int main (int argc, char const *argv[])
{
char name[20];
scanf("%[^\n]s",name);
printf("%s\n", name);
return 0;
}
Since Java 1.5 you can use the String.format
method. For example, to do the same thing as your example:
String format = String.format("%0%d", digits);
String result = String.format(format, num);
return result;
In this case, you're creating the format string using the width specified in digits, then applying it directly to the number. The format for this example is converted as follows:
%% --> %
0 --> 0
%d --> <value of digits>
d --> d
So if digits is equal to 5, the format string becomes %05d
which specifies an integer with a width of 5 printing leading zeroes. See the java docs for String.format
for more information on the conversion specifiers.
You Can Also Check It:
cmd /c cd /d C:\activiti-5.9\setup & ant demo.start
IE8/9 render the non-breaking hyphen mentioned in CanSpice's answer longer than a typical hyphen. It is the length of an en-dash instead of a typical hyphen. This display difference was a deal breaker for me.
As I could not use the CSS answer specified by Deb I instead opted to use no break tags.
<nobr>e-mail</nobr>
In addition I found a specific scenario that caused IE8/9 to break on a hyphen.
IE renders it like this.
The following code reproduces the problem pictured above. I had to use a meta tag to force rendering to IE9 as IE10 has fixed the issue. No fiddle because it does not support meta tags.
<!DOCTYPE html>
<html lang="en">
<head>
<meta http-equiv="X-UA-Compatible" content="IE=9" />
<meta charset="utf-8"/>
<style>
body { padding: 20px; }
div { width: 300px; border: 1px solid gray; }
</style>
</head>
<body>
<div>
<p>If there is a - and words are separated by the whitespace code &nbsp; then IE will wrap on the dash.</p>
</div>
</body>
</html>
Local storage: It keeps store the user information data without expiration date this data will not be deleted when user closed the browser windows it will be available for day, week, month and year.
In Local storage can store 5-10mb offline data.
//Set the value in a local storage object
localStorage.setItem('name', myName);
//Get the value from storage object
localStorage.getItem('name');
//Delete the value from local storage object
localStorage.removeItem(name);//Delete specifice obeject from local storege
localStorage.clear();//Delete all from local storege
Session Storage: It is same like local storage date except it will delete all windows when browser windows closed by a web user.
In Session storage can store upto 5 mb data
//set the value to a object in session storege
sessionStorage.myNameInSession = "Krishna";
Session: A session is a global variable stored on the server. Each session is assigned a unique id which is used to retrieve stored values.
Cookies: Cookies are data, stored in small text files as name-value pairs, on your computer. Once a cookie has been set, all page requests that follow return the cookie name and value.
I also encounter the same problem and I resolved it by checking if the camera is available:
BOOL cameraAvailableFlag = [UIImagePickerController isSourceTypeAvailable:UIImagePickerControllerSourceTypeCamera];
if (cameraAvailableFlag)
[self performSelector:@selector(showcamera) withObject:nil afterDelay:0.3];
Maybe you are looking for this plyr::revalue function:
mutate(dat, x = revalue(x, c("A" = "B")))
You can see plyr::mapvalues too.
public int this[int index]
{
get => values[index];
}
I use a mixed approach to cancel a task.
Checkout an example below:
private CancellationTokenSource taskToken;
private AutoResetEvent awaitReplyOnRequestEvent = new AutoResetEvent(false);
void Main()
{
// Start a task which is doing nothing but sleeps 1s
LaunchTaskAsync();
Thread.Sleep(100);
// Stop the task
StopTask();
}
/// <summary>
/// Launch task in a new thread
/// </summary>
void LaunchTaskAsync()
{
taskToken = new CancellationTokenSource();
Task.Factory.StartNew(() =>
{
try
{ //Capture the thread
runningTaskThread = Thread.CurrentThread;
// Run the task
if (taskToken.IsCancellationRequested || !awaitReplyOnRequestEvent.WaitOne(10000))
return;
Console.WriteLine("Task finished!");
}
catch (Exception exc)
{
// Handle exception
}
}, taskToken.Token);
}
/// <summary>
/// Stop running task
/// </summary>
void StopTask()
{
// Attempt to cancel the task politely
if (taskToken != null)
{
if (taskToken.IsCancellationRequested)
return;
else
taskToken.Cancel();
}
// Notify a waiting thread that an event has occurred
if (awaitReplyOnRequestEvent != null)
awaitReplyOnRequestEvent.Set();
// If 1 sec later the task is still running, kill it cruelly
if (runningTaskThread != null)
{
try
{
runningTaskThread.Join(TimeSpan.FromSeconds(1));
}
catch (Exception ex)
{
runningTaskThread.Abort();
}
}
}
Other answers deal with the technical aspect of the border-opacity issue, while I'd like to present a hack(pure CSS and HTML only). Basically create a container div, having a border div and then the content div.
<div class="container">
<div class="border-box"></div>
<div class="content-box"></div>
</div>
And then the CSS:(set content border to none, take care of positioning such that border thickness is accounted for)
.container {
width: 20vw;
height: 20vw;
position: relative;
}
.border-box {
width: 100%;
height: 100%;
border: 5px solid black;
position: absolute;
opacity: 0.5;
}
.content-box {
width: 100%;
height: 100%;
border: none;
background: green;
top: 5px;
left: 5px;
position: absolute;
}
The simple question to your answer is already answered a lot of times:
/*
LINES I WANT COMMENTED
LINES I WANT COMMENTED
LINES I WANT COMMENTED
*/
From your question it sounds like you want to comment out a lot of code?? I would advise to use a repository(git/github) to manage your files instead of commenting out lines.
localStorage and sessionStorage both extend Storage. There is no difference between them except for the intended "non-persistence" of sessionStorage
.
That is, the data stored in localStorage
persists until explicitly deleted. Changes made are saved and available for all current and future visits to the site.
For sessionStorage
, changes are only available per tab. Changes made are saved and available for the current page in that tab until it is closed. Once it is closed, the stored data is deleted.
You want to use a JFileChooser
object. It will open and be modal, and block in the thread that opened it until you choose a file.
Open:
JFileChooser fileChooser = new JFileChooser(); if (fileChooser.showOpenDialog(modalToComponent) == JFileChooser.APPROVE_OPTION) { File file = fileChooser.getSelectedFile(); // load from file }
Save:
JFileChooser fileChooser = new JFileChooser(); if (fileChooser.showSaveDialog(modalToComponent) == JFileChooser.APPROVE_OPTION) { File file = fileChooser.getSelectedFile(); // save to file }
There are more options you can set to set the file name extension filter, or the current directory. See the API for the javax.swing.JFileChooser
for details. There is also a page for "How to Use File Choosers" on Oracle's site:
http://download.oracle.com/javase/tutorial/uiswing/components/filechooser.html
A checksum comparison will most likely be slower than a byte-by-byte comparison.
In order to generate a checksum, you'll need to load each byte of the file, and perform processing on it. You'll then have to do this on the second file. The processing will almost definitely be slower than the comparison check.
As for generating a checksum: You can do this easily with the cryptography classes. Here's a short example of generating an MD5 checksum with C#.
However, a checksum may be faster and make more sense if you can pre-compute the checksum of the "test" or "base" case. If you have an existing file, and you're checking to see if a new file is the same as the existing one, pre-computing the checksum on your "existing" file would mean only needing to do the DiskIO one time, on the new file. This would likely be faster than a byte-by-byte comparison.
I've backported the three Material Design progress drawables to Android 4.0, which can be used as a drop-in replacement for regular ProgressBar
, with exactly the same appearance.
These drawables also backported the tinting APIs (and RTL support), and uses ?colorControlActivated
as the default tint. A MaterialProgressBar
widget which extends ProgressBar
has also been introduced for convenience.
DreaminginCodeZH/MaterialProgressBar
This project has also been adopted by afollestad/material-dialogs for progress dialog.
On Android 4.4.4:
On Android 5.1.1:
The new version of SharePoint and Office (SharePoint 2010 and Office 2010) respectively are supposed to allow for this. This also includes the web based versions. I have seen Word and Excel in action do this, not sure about other client applications.
I am not sure about the specific implementation features you are asking about in terms of security though. Sorry.,=
Here is a discussion
http://blogs.msdn.com/b/sharepoint/archive/2009/10/19/sharepoint-2010.aspx
This Works
function saveBase64AsFile(base64, fileName) {
var link = document.createElement("a");
document.body.appendChild(link);
link.setAttribute("type", "hidden");
link.href = "data:text/plain;base64," + base64;
link.download = fileName;
link.click();
document.body.removeChild(link);
}
Based on the answer above but with some changes
For me, only catching the mouseenter event was a bit buggy, and the tooltip was not showing/hiding properly. I had to write this, and it is now working perfectly:
$(document).on('mouseenter','[rel=tooltip]', function(){
$(this).tooltip('show');
});
$(document).on('mouseleave','[rel=tooltip]', function(){
$(this).tooltip('hide');
});
Yes, the "is" keyword:
if (c is TForm)
{
...
}
See details on MSDN: http://msdn.microsoft.com/en-us/library/scekt9xw(VS.80).aspx
Checks if an object is compatible with a given type. For example, it can be determined if an object is compatible with the string type like this:
There is no built-in formula in excel, you have to add a vb script and permanently save it with your MS. Excel's installation as Add-In.
Option Explicit
Public Numbers As Variant, Tens As Variant
Sub SetNums()
Numbers = Array("", "One", "Two", "Three", "Four", "Five", "Six", "Seven", "Eight", "Nine", "Ten", "Eleven", "Twelve", "Thirteen", "Fourteen", "Fifteen", "Sixteen", "Seventeen", "Eighteen", "Nineteen")
Tens = Array("", "", "Twenty", "Thirty", "Forty", "Fifty", "Sixty", "Seventy", "Eighty", "Ninety")
End Sub
Function WordNum(MyNumber As Double) As String
Dim DecimalPosition As Integer, ValNo As Variant, StrNo As String
Dim NumStr As String, n As Integer, Temp1 As String, Temp2 As String
' This macro was written by Chris Mead - www.MeadInKent.co.uk
If Abs(MyNumber) > 999999999 Then
WordNum = "Value too large"
Exit Function
End If
SetNums
' String representation of amount (excl decimals)
NumStr = Right("000000000" & Trim(Str(Int(Abs(MyNumber)))), 9)
ValNo = Array(0, Val(Mid(NumStr, 1, 3)), Val(Mid(NumStr, 4, 3)), Val(Mid(NumStr, 7, 3)))
For n = 3 To 1 Step -1 'analyse the absolute number as 3 sets of 3 digits
StrNo = Format(ValNo(n), "000")
If ValNo(n) > 0 Then
Temp1 = GetTens(Val(Right(StrNo, 2)))
If Left(StrNo, 1) <> "0" Then
Temp2 = Numbers(Val(Left(StrNo, 1))) & " hundred"
If Temp1 <> "" Then Temp2 = Temp2 & " and "
Else
Temp2 = ""
End If
If n = 3 Then
If Temp2 = "" And ValNo(1) + ValNo(2) > 0 Then Temp2 = "and "
WordNum = Trim(Temp2 & Temp1)
End If
If n = 2 Then WordNum = Trim(Temp2 & Temp1 & " thousand " & WordNum)
If n = 1 Then WordNum = Trim(Temp2 & Temp1 & " million " & WordNum)
End If
Next n
NumStr = Trim(Str(Abs(MyNumber)))
' Values after the decimal place
DecimalPosition = InStr(NumStr, ".")
Numbers(0) = "Zero"
If DecimalPosition > 0 And DecimalPosition < Len(NumStr) Then
Temp1 = " point"
For n = DecimalPosition + 1 To Len(NumStr)
Temp1 = Temp1 & " " & Numbers(Val(Mid(NumStr, n, 1)))
Next n
WordNum = WordNum & Temp1
End If
If Len(WordNum) = 0 Or Left(WordNum, 2) = " p" Then
WordNum = "Zero" & WordNum
End If
End Function
Function GetTens(TensNum As Integer) As String
' Converts a number from 0 to 99 into text.
If TensNum <= 19 Then
GetTens = Numbers(TensNum)
Else
Dim MyNo As String
MyNo = Format(TensNum, "00")
GetTens = Tens(Val(Left(MyNo, 1))) & " " & Numbers(Val(Right(MyNo, 1)))
End If
End Function
After this, From File Menu select Save Book ,from next menu select "Excel 97-2003 Add-In (*.xla)
It will save as Excel Add-In. that will be available till the Ms.Office Installation to that machine.
Now Open any Excel File in any Cell type =WordNum(<your numeric value or cell reference>)
you will see a Words equivalent of the numeric value.
This Snippet of code is taken from: http://en.kioskea.net/forum/affich-267274-how-to-convert-number-into-text-in-excel
The situation becomes a little bit problematic if we want to create a branch from a tag with the same name.
In this, and in similar scenarios, the important thing is to know: branches and tags are actually single-line text files in .git/refs
directory, and we can reference them explicitly using their pathes below .git
. Branches are called here "heads", to make our life more simple.
Thus, refs/heads/master
is the real, explicit name of the master
branch. And refs/tags/cica
is the exact name of the tag named cica
.
The correct command to create a branch named cica
from the tag named cica
is:
git branch cica refs/tags/cica
I had the same error when running lib.exe from cmd on Windows with a long argument list. apparently cmd.exe has max line length of about 8K characters, which resulted that the filenames at the end of this threshold got changed, thus resulting in bad filename error. my solution was to trim the line. I removed all paths from filenames and added single path using /LIBPATH option. for example:
/LIBPATH:absolute_path /OUT:outfilename filename1.obj filename2.obj ... filenameN.obj
Call this function onclick of button
/*pass whatever you want instead of id */
function doConfirm(id) {
var ok = confirm("Are you sure to Delete?");
if (ok) {
if (window.XMLHttpRequest) {
// code for IE7+, Firefox, Chrome, Opera, Safari
xmlhttp = new XMLHttpRequest();
} else {
// code for IE6, IE5
xmlhttp = new ActiveXObject("Microsoft.XMLHTTP");
}
xmlhttp.onreadystatechange = function() {
if (xmlhttp.readyState == 4 && xmlhttp.status == 200) {
window.location = "create_dealer.php";
}
}
xmlhttp.open("GET", "delete_dealer.php?id=" + id);
// file name where delete code is written
xmlhttp.send();
}
}
Just unset the node:
$str = <<<STR
<a>
<b>
<c>
</c>
</b>
</a>
STR;
$xml = simplexml_load_string($str);
unset($xml –> a –> b –> c); // this would remove node c
echo $xml –> asXML(); // xml document string without node c
This code was taken from How to delete / remove nodes in SimpleXML.
With Groovy, you don't need the includes, and can just do:
String oldDate = '04-DEC-2012'
Date date = Date.parse( 'dd-MMM-yyyy', oldDate )
String newDate = date.format( 'M-d-yyyy' )
println newDate
To print:
12-4-2012
if using MySQLi
bind_param try to put this line above the query
mysqli_report(MYSQLI_REPORT_ERROR | MYSQLI_REPORT_STRICT);
{ ERROR=$(./useless.sh 2>&1 1>&$out); } {out}>&1
echo "-"
echo $ERROR
Will produce:
This Is Output
-
This Is Error
2020 Update
One of my reasons for preferring a typeof
check (namely, that undefined
can be redefined) became irrelevant with the mass adoption of ECMAScript 5. The other, that you can use typeof
to check the type of an undeclared variable, was always niche. Therefore, I'd now recommend using a direct comparison in most situations:
myVariable === undefined
Original answer from 2010
Using typeof
is my preference. It will work when the variable has never been declared, unlike any comparison with the ==
or ===
operators or type coercion using if
. (undefined
, unlike null
, may also be redefined in ECMAScript 3 environments, making it unreliable for comparison, although nearly all common environments now are compliant with ECMAScript 5 or above).
if (typeof someUndeclaredVariable == "undefined") {
// Works
}
if (someUndeclaredVariable === undefined) {
// Throws an error
}
CGRect
Can be simply created using an instance of a CGPoint
or CGSize
, thats given below.
let rect = CGRect(origin: CGPoint(x: 0,y :0), size: CGSize(width: 100, height: 100))
// Or
let rect = CGRect(origin: .zero, size: CGSize(width: 100, height: 100))
Or if we want to specify each value in CGFloat
or Double
or Int
, we can use this method.
let rect = CGRect(x: 0, y: 0, width: 100, height: 100) // CGFloat, Double, Int
CGPoint
Can be created like this.
let point = CGPoint(x: 0,y :0) // CGFloat, Double, Int
CGSize
Can be created like this.
let size = CGSize(width: 100, height: 100) // CGFloat, Double, Int
Also size and point with 0 as the values, it can be done like this.
let size = CGSize.zero // width = 0, height = 0
let point = CGPoint.zero // x = 0, y = 0, equal to CGPointZero
let rect = CGRect.zero // equal to CGRectZero
CGRectZero
& CGPointZero
replaced with CGRect.zero
& CGPoint.zero
in Swift 3.0
.