Here is my implementation for your reference:
def _mkdir_recursive(self, path):
sub_path = os.path.dirname(path)
if not os.path.exists(sub_path):
self._mkdir_recursive(sub_path)
if not os.path.exists(path):
os.mkdir(path)
Hope this help!
it might save some time to somebody.
If you use GuzzleHttp and you face with this error message cURL error 60: SSL: no alternative certificate subject name matches target host name and you are fine with the 'insecure' solution (not recommended on production) then you have to add
\GuzzleHttp\RequestOptions::VERIFY => false
to the client configuration:
$this->client = new \GuzzleHttp\Client([
'base_uri' => 'someAccessPoint',
\GuzzleHttp\RequestOptions::HEADERS => [
'User-Agent' => 'some-special-agent',
],
'defaults' => [
\GuzzleHttp\RequestOptions::CONNECT_TIMEOUT => 5,
\GuzzleHttp\RequestOptions::ALLOW_REDIRECTS => true,
],
\GuzzleHttp\RequestOptions::VERIFY => false,
]);
which sets CURLOPT_SSL_VERIFYHOST
to 0 and CURLOPT_SSL_VERIFYPEER
to false in the CurlFactory::applyHandlerOptions()
method
$conf[CURLOPT_SSL_VERIFYHOST] = 0;
$conf[CURLOPT_SSL_VERIFYPEER] = false;
From the GuzzleHttp documentation
verify
Describes the SSL certificate verification behavior of a request.
- Set to true to enable SSL certificate verification and use the default CA bundle > provided by operating system.
- Set to false to disable certificate verification (this is insecure!).
- Set to a string to provide the path to a CA bundle to enable verification using a custom certificate.
It's easy to achieve this is to just use an Intent like this: (I put the method in a custom class that takes in an Activity as a parameter so it can be called from any Fragment or Activity)
public class UIutils {
private Activity mActivity;
public UIutils(Activity activity){
mActivity = activity;
}
public void showPhoto(Uri photoUri){
Intent intent = new Intent();
intent.setAction(Intent.ACTION_VIEW);
intent.setDataAndType(photoUri, "image/*");
mActivity.startActivity(intent);
}
}
Then to use it just do this:
imageView.setOnClickListener(v1 -> new UIutils(getActivity()).showPhoto(Uri.parse(imageURI)));
I use this with an Image URL but it can be used with stored files as well. If you are accessing images form the phones memory you should use a content provider.
I solved the problem by enabling the mod_autoindex
from Apache. It was disabled by default.
sudo a2enmod autoindex
UPDATE For Android v19+ see this link via @Sandra
You can create your own animations. Place animation XML files in res > anim
enter_from_left.xml
<?xml version="1.0" encoding="utf-8"?>
<set xmlns:android="http://schemas.android.com/apk/res/android"
android:shareInterpolator="false">
<translate
android:fromXDelta="-100%p" android:toXDelta="0%"
android:fromYDelta="0%" android:toYDelta="0%"
android:duration="@android:integer/config_mediumAnimTime"/>
</set>
enter_from_right.xml
<?xml version="1.0" encoding="utf-8"?>
<set xmlns:android="http://schemas.android.com/apk/res/android"
android:shareInterpolator="false">
<translate
android:fromXDelta="100%p" android:toXDelta="0%"
android:fromYDelta="0%" android:toYDelta="0%"
android:duration="@android:integer/config_mediumAnimTime" />
</set>
exit_to_left.xml
<?xml version="1.0" encoding="utf-8"?>
<set xmlns:android="http://schemas.android.com/apk/res/android"
android:shareInterpolator="false">
<translate
android:fromXDelta="0%" android:toXDelta="-100%p"
android:fromYDelta="0%" android:toYDelta="0%"
android:duration="@android:integer/config_mediumAnimTime"/>
</set>
exit_to_right.xml
<?xml version="1.0" encoding="utf-8"?>
<set xmlns:android="http://schemas.android.com/apk/res/android"
android:shareInterpolator="false">
<translate
android:fromXDelta="0%" android:toXDelta="100%p"
android:fromYDelta="0%" android:toYDelta="0%"
android:duration="@android:integer/config_mediumAnimTime" />
</set>
you can change the duration to short animation time
android:duration="@android:integer/config_shortAnimTime"
or long animation time
android:duration="@android:integer/config_longAnimTime"
USAGE (note that the order in which you call methods on the transaction matters. Add the animation before you call .replace, .commit):
FragmentTransaction transaction = supportFragmentManager.beginTransaction();
transaction.setCustomAnimations(R.anim.enter_from_right, R.anim.exit_to_left, R.anim.enter_from_left, R.anim.exit_to_right);
transaction.replace(R.id.content_frame, fragment);
transaction.addToBackStack(null);
transaction.commit();
Here is the solution I'm using:
const result = `${ window.location.protocol }//${ window.location.host }`;
EDIT:
To add cross-browser compatibility, use the following:
const result = `${ window.location.protocol }//${ window.location.hostname + (window.location.port ? ':' + window.location.port: '') }`;
DataSet ds = new DataSet();
DataTable dt = new DataTable("MyTable");
dt.Columns.Add(new DataColumn("id",typeof(int)));
dt.Columns.Add(new DataColumn("name", typeof(string)));
DataRow dr = dt.NewRow();
dr["id"] = 123;
dr["name"] = "John";
dt.Rows.Add(dr);
ds.Tables.Add(dt);
Try this:
HTML:
<input type="submit" value="submit" name="submit" onclick="myfunction()">
jQuery:
<script type="text/javascript">
function myfunction()
{
var url = $(location).attr('href');
$('#spn_url').html('<strong>' + url + '</strong>');
}
</script>
Just another idea:
>>> bin(6)[2:].zfill(8)
'00000110'
Shorter way via string interpolation (Python 3.6+):
>>> f'{6:08b}'
'00000110'
I know the question is about getting the day of week as string (e.g. the short name), but for anybody who is looking for the numeric day of week (as I was), you can use the new "u" format string, supported since Java 7. For example:
new SimpleDateFormat("u").format(new Date());
returns today's day-of-week index, namely: 1 = Monday, 2 = Tuesday, ..., 7 = Sunday.
In response to:
Ok, Same error (The Environment variable JAVA_HOME (with a value of C:\Program Files(x86)\Java\jdk1.7.0_51\bin)) does not point to a
valid JVM instalation). What should I do? – IPconfigrammer Apr 20 '14 at 18:41
I can give you a last advice of checking your JDK by opening the jvisualvm.exe or installing a program like BlueJ to check whether
your JDK is corrupt or not. – prakhar19 Apr 20 '14 at 18:45
jvisualvm.exe works otherwise, I'm not sure. Problem Still unsolved – IPconfigrammer
IPconfigrammer --I've been having the same problems. After trying just about everything on this page, I noticed when Android Studio was telling me it wasn't valid it asked me to install a 64-bit JDK. So, even though my windows is 86-bit, I downloaded the 64-bit JDK and, without changing any environment variables or anything, I've just opened Android Studio for the first time. No more errors. :)
So try the 64-bit instead of the 86-bit.
Manually add it when you build the query:
SELECT 'Site1' AS SiteName, t1.column, t1.column2
FROM t1
UNION ALL
SELECT 'Site2' AS SiteName, t2.column, t2.column2
FROM t2
UNION ALL
...
EXAMPLE:
DECLARE @t1 TABLE (column1 int, column2 nvarchar(1))
DECLARE @t2 TABLE (column1 int, column2 nvarchar(1))
INSERT INTO @t1
SELECT 1, 'a'
UNION SELECT 2, 'b'
INSERT INTO @t2
SELECT 3, 'c'
UNION SELECT 4, 'd'
SELECT 'Site1' AS SiteName, t1.column1, t1.column2
FROM @t1 t1
UNION ALL
SELECT 'Site2' AS SiteName, t2.column1, t2.column2
FROM @t2 t2
RESULT:
SiteName column1 column2
Site1 1 a
Site1 2 b
Site2 3 c
Site2 4 d
Another way to add that I used to 'hack' this solution was to do this:
I set up a seperate computed
value that would simply return the nested object value.
data : function(){
return {
my_object : {
my_deep_object : {
my_value : "hello world";
}.
},
};
},
computed : {
helper_name : function(){
return this.my_object.my_deep_object.my_value;
},
},
watch : {
helper_name : function(newVal, oldVal){
// do this...
}
}
new Date().toString();
http://www.mkyong.com/java/java-how-to-get-current-date-time-date-and-calender/
Dateformatter can make it to any string you want
For category relations insertion I came across the same problem and had no idea, except that in my eloquent model I used Self() to have an instance of the same class in foreach to record multiple saves and grabing ids.
foreach($arCategories as $v)
{
if($v>0){
$obj = new Self(); // this is to have new instance of own
$obj->page_id = $page_id;
$obj->category_id = $v;
$obj->save();
}
}
without "$obj = new Self()" it only saves single record (when $obj was $this)
I had this issue; I fixed it by going to
Computer-->Properties-->Advanced Settings-->Environmental Variables
In the System Variables find the variable named PATH.
-->Select Edit
-->At the very end of the Path Variable, put a ";" then add your path of your JDK and put \bin\ at the end
Should be fixed.
Example:
System Variable-
C:\Program Files (x86)\Common Files.......HP\LeanFT\bin
JDK path-
C:\Programs Files\Java\jre1.8.0_121
Final Path -
C:\Program Files (x86)\Common Files.......HP\LeanFT\bin;C:\Programs Files\Java\jre1.8.0_121\bin\
If you're getting this error from Netbeans (7.2+) then it means that your separately installed version of Subversion is higher than the version in netbeans. In my case Netbeans (v7.3.1) had SVN v1.7 and I'd just upgraded my SVN to v1.8.
If you look in Tools > Options > Miscellaneous (tab) > Versioning (tab) > Subversion (pane)
, set the Preferred Client = CLI, then you can set the path the the installed SVN which for me was C:\Program Files\TortoiseSVN\bin
.
More can be found on the Netbeans Subversion Clients FAQ.
What the status is telling you is that you're behind the ref called origin/master
which is a local ref in your local repo. In this case that ref happens to track a branch in some remote, called origin
, but the status is not telling you anything about the branch on the remote. It's telling you about the ref, which is just a commit ID stored on your local filesystem (in this case, it's typically in a file called .git/refs/remotes/origin/master
in your local repo).
git pull
does two operations; first it does a git fetch
to get up to date with the commits in the remote repo (which updates the origin/master
ref in your local repo), then it does a git merge
to merge those commits into the current branch.
Until you do the fetch
step (either on its own or via git pull
) your local repo has no way to know that there are additional commits upstream, and git status
only looks at your local origin/master
ref.
When git status
says up-to-date, it means "up-to-date with the branch that the current branch tracks", which in this case means "up-to-date with the local ref called origin/master
". That only equates to "up-to-date with the upstream status that was retrieved last time we did a fetch
" which is not the same as "up-to-date with the latest live status of the upstream".
Why does it work this way? Well the fetch
step is a potentially slow and expensive network operation. The design of Git (and other distributed version control systems) is to avoid network operations when unnecessary, and is a completely different model to the typical client-server system many people are used to (although as pointed out in the comments below, Git's concept of a "remote tracking branch" that causes confusion here is not shared by all DVCSs). It's entirely possible to use Git offline, with no connection to a centralized server, and the output of git status
reflects this.
Creating and switching branches (and checking their status) in Git is supposed to be lightweight, not something that performs a slow network operation to a centralized system. The assumption when designing Git, and the git status
output, was that users understand this (too many Git features only make sense if you already know how Git works). With the adoption of Git by lots and lots of users who are not familiar with DVCS this assumption is not always valid.
You may also use all() method to get array of selected attributes.
$test=test::select('id')->where('id' ,'>' ,0)->all();
Regards
<select onchange = "selectChanged(this.value)">
<item value = "1">one</item>
<item value = "2">two</item>
</select>
and then the javascript...
function selectChanged(newvalue) {
alert("you chose: " + newvalue);
}
Just searched for the docs, and found this:
Containment Operator: The in operator performs containment test. It returns true if the left operand is contained in the right:
{# returns true #}
{{ 1 in [1, 2, 3] }}
{{ 'cd' in 'abcde' }}
@martinho as a newbie using Flask and Python myself, I think the previous answers here took for granted that you had a good understanding of the fundamentals. In case you or other viewers don't know the fundamentals, I'll give more context to understand the answer...
... the request.args
is bringing a "dictionary" object for you. The "dictionary" object is similar to other collection-type of objects in Python, in that it can store many elements in one single object. Therefore the answer to your question
And how many parameters
request.args.get()
takes.
It will take only one object, a "dictionary" type of object (as stated in the previous answers). This "dictionary" object, however, can have as many elements as needed... (dictionaries have paired elements called Key, Value).
Other collection-type of objects besides "dictionaries", would be "tuple", and "list"... you can run a google search on those and "data structures" in order to learn other Python fundamentals. This answer is based Python; I don't have an idea if the same applies to other programming languages.
It's called dependency injection via constructor injection: class A
gets the dependency as an argument to its constructor and saves the reference to dependent class as a private variable.
There's an interesting introduction on wikipedia.
For const-correctness I'd write:
using T = int;
class A
{
public:
A(const T &thing) : m_thing(thing) {}
// ...
private:
const T &m_thing;
};
but a problem with this class is that it accepts references to temporary objects:
T t;
A a1{t}; // this is ok, but...
A a2{T()}; // ... this is BAD.
It's better to add (requires C++11 at least):
class A
{
public:
A(const T &thing) : m_thing(thing) {}
A(const T &&) = delete; // prevents rvalue binding
// ...
private:
const T &m_thing;
};
Anyway if you change the constructor:
class A
{
public:
A(const T *thing) : m_thing(*thing) { assert(thing); }
// ...
private:
const T &m_thing;
};
it's pretty much guaranteed that you won't have a pointer to a temporary.
Also, since the constructor takes a pointer, it's clearer to users of A
that they need to pay attention to the lifetime of the object they pass.
Somewhat related topics are:
I'm wondering if there is any way to get a value from a Promise or wait (block/sleep) until it has resolved, similar to .NET's IAsyncResult.WaitHandle.WaitOne(). I know JavaScript is single-threaded, but I'm hoping that doesn't mean that a function can't yield.
The current generation of Javascript in browsers does not have a wait()
or sleep()
that allows other things to run. So, you simply can't do what you're asking. Instead, it has async operations that will do their thing and then call you when they're done (as you've been using promises for).
Part of this is because of Javascript's single threadedness. If the single thread is spinning, then no other Javascript can execute until that spinning thread is done. ES6 introduces yield
and generators which will allow some cooperative tricks like that, but we're quite a ways from being able to use those in a wide swatch of installed browsers (they can be used in some server-side development where you control the JS engine that is being used).
Careful management of promise-based code can control the order of execution for many async operations.
I'm not sure I understand exactly what order you're trying to achieve in your code, but you could do something like this using your existing kickOff()
function, and then attaching a .then()
handler to it after calling it:
function kickOff() {
return new Promise(function(resolve, reject) {
$("#output").append("start");
setTimeout(function() {
resolve();
}, 1000);
}).then(function() {
$("#output").append(" middle");
return " end";
});
}
kickOff().then(function(result) {
// use the result here
$("#output").append(result);
});
This will return output in a guaranteed order - like this:
start
middle
end
Update in 2018 (three years after this answer was written):
If you either transpile your code or run your code in an environment that supports ES7 features such as async
and await
, you can now use await
to make your code "appear" to wait for the result of a promise. It is still developing with promises. It does still not block all of Javascript, but it does allow you to write sequential operations in a friendlier syntax.
Instead of the ES6 way of doing things:
someFunc().then(someFunc2).then(result => {
// process result here
}).catch(err => {
// process error here
});
You can do this:
// returns a promise
async function wrapperFunc() {
try {
let r1 = await someFunc();
let r2 = await someFunc2(r1);
// now process r2
return someValue; // this will be the resolved value of the returned promise
} catch(e) {
console.log(e);
throw e; // let caller know the promise was rejected with this reason
}
}
wrapperFunc().then(result => {
// got final result
}).catch(err => {
// got error
});
You should use readfile()
:
readfile("/path/to/file");
This will read the file and send it to the browser in one command. This is essentially the same as:
echo file_get_contents("/path/to/file");
except that file_get_contents()
may cause the script to crash for large files, while readfile()
won't.
I like ThomasA's answer, but wanted a more realistic context with the wave being used to separate two divs. So I created a more complete demo where the separator SVG gets positioned perfectly between the two divs.
Now I thought it would be cool to take it further. What if we could do this all in CSS without the need for the inline SVG? The point being to avoid extra markup. Here's how I did it:
Two simple <div>
:
/** CSS using pseudo-elements: **/_x000D_
_x000D_
#A {_x000D_
background: #0074D9;_x000D_
}_x000D_
_x000D_
#B {_x000D_
background: #7FDBFF;_x000D_
}_x000D_
_x000D_
#A::after {_x000D_
content: "";_x000D_
position: relative;_x000D_
left: -3rem;_x000D_
/* padding * -1 */_x000D_
top: calc( 3rem - 4rem / 2);_x000D_
/* padding - height/2 */_x000D_
float: left;_x000D_
display: block;_x000D_
height: 4rem;_x000D_
width: 100vw;_x000D_
background: hsla(0, 0%, 100%, 0.5);_x000D_
background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 70 500 60' preserveAspectRatio='none'%3E%3Crect x='0' y='0' width='500' height='500' style='stroke: none; fill: %237FDBFF;' /%3E%3Cpath d='M0,100 C150,200 350,0 500,100 L500,00 L0,0 Z' style='stroke: none; fill: %230074D9;'%3E%3C/path%3E%3C/svg%3E");_x000D_
background-size: 100% 100%;_x000D_
}_x000D_
_x000D_
_x000D_
/** Cosmetics **/_x000D_
_x000D_
* {_x000D_
margin: 0;_x000D_
}_x000D_
_x000D_
#A,_x000D_
#B {_x000D_
padding: 3rem;_x000D_
}_x000D_
_x000D_
div {_x000D_
font-family: monospace;_x000D_
font-size: 1.2rem;_x000D_
line-height: 1.2;_x000D_
}_x000D_
_x000D_
#A {_x000D_
color: white;_x000D_
}
_x000D_
<div id="A">Lorem ipsum dolor sit amet, consectetur adipiscing elit. Vivamus nec quam tincidunt, iaculis mi non, hendrerit felis. Nulla pretium lectus et arcu tempus, quis luctus ex imperdiet. In facilisis nulla suscipit ornare finibus. …_x000D_
</div>_x000D_
_x000D_
<div id="B" class="wavy">… In iaculis fermentum lacus vel porttitor. Vestibulum congue elementum neque eget feugiat. Donec suscipit diam ligula, aliquam consequat tellus sagittis porttitor. Sed sodales leo nisl, ut consequat est ornare eleifend. Cras et semper mi, in porta nunc.</div>
_x000D_
Demo Wavy divider (with CSS pseudo-elements to avoid extra markup)
It was a bit trickier to position than with an inline SVG but works just as well. (Could use CSS custom properties or pre-processor variables to keep the height and padding easy to read.)
To edit the colors, you need to edit the URL-encoded SVG itself.
Pay attention (like in the first demo) to a change in the viewBox
to get rid of unwanted spaces in the SVG. (Another option would be to draw a different SVG.)
Another thing to pay attention to here is the background-size
set to 100% 100%
to get it to stretch in both directions.
No, there's no legal and reliable way to do this.
If you find a way, it will be disabled in the future, as it has happened with every method before.
Remember that in git
you have:
HEAD
pointer, which tells you what commit you're working onPlease include detailed explanations about:
--hard
,--soft
and--merge
;
In increasing order of dangerous-ness:
--soft
moves HEAD
but doesn't touch the staging area or the working tree.--mixed
moves HEAD
and updates the staging area, but not the working tree.--merge
moves HEAD
, resets the staging area, and tries to move all the changes in your working tree into the new working tree.--hard
moves HEAD
and adjusts your staging area and working tree to the new HEAD
, throwing away everything.concrete use cases and workflows;
--soft
when you want to move to another commit and patch things up without "losing your place". It's pretty rare that you need this.--
# git reset --soft example
touch foo // Add a file, make some changes.
git add foo //
git commit -m "bad commit message" // Commit... D'oh, that was a mistake!
git reset --soft HEAD^ // Go back one commit and fix things.
git commit -m "good commit" // There, now it's right.
--
Use --mixed
(which is the default) when you want to see what things look like at another commit, but you don't want to lose any changes you already have.
Use --merge
when you want to move to a new spot but incorporate the changes you already have into that the working tree.
Use --hard
to wipe everything out and start a fresh slate at the new commit.
The stdlib.h file contains the header information or prototype of the malloc, calloc, realloc and free functions.
So to avoid this warning in ANSI C, you should include the stdlib header file.
DON'T USE A TRANSAPENT OR NULL LAYOUT because then the button (or the generic view) will no more highlight at click!!!
I had the same problem and finally I found the correct attribute from Android API to solve the problem. It can apply to any view.
Use this in the button specifications:
android:background="?android:selectableItemBackground"
The year()
function just retrieves the year component of the underlying Date
object, so it returns a number.
Calling format('YYYY')
will invoke moment's string formatting functions, which will parse the format string supplied, and build a new string containing the appropriate data. Since you only are passing YYYY
, then the result will be a string containing the year.
If all you need is the year, then use the year()
function. It will be faster, as there is less work to do.
Do note that while years are the same in this regard, months are not! Calling format('M')
will return months in the range 1-12. Calling month()
will return months in the range 0-11. This is due to the same behavior of the underlying Date
object.
git fsck --unreachable | grep commit
should show the sha1, although the list it returns might be quite large. git show <sha1>
will show if it is the commit you want.
git cherry-pick -m 1 <sha1>
will merge the commit onto the current branch.
FYI this turned out to be an issue for me where I had two tables in a statement like the following:
SELECT * FROM table1
UNION ALL
SELECT * FROM table2
It worked, but then somewhere along the line the order of columns in one of the table definitions got changed. Changing the *
to SELECT column1, column2
fixed the issue. No idea how that happened, but lesson learned!
None of those methods work the way the questioner is asking for and which I've often had a need for as well. eg:
$ git remote
fatal: Not a git repository (or any of the parent directories): .git
$ git remote user@bserver
fatal: Not a git repository (or any of the parent directories): .git
$ git remote user@server:/home/user
fatal: Not a git repository (or any of the parent directories): .git
$ git ls-remote
fatal: No remote configured to list refs from.
$ git ls-remote user@server:/home/user
fatal: '/home/user' does not appear to be a git repository
fatal: Could not read from remote repository.
Please make sure you have the correct access rights
and the repository exists.
The whole point of doing this is that you do not have any information except the remote user and server and want to find out what you have access to.
The majority of the answers assume you are querying from within a git working set. The questioner is assuming you are not.
As a practical example, assume there was a repository foo.git on the server. Someone in their wisdom decides they need to change it to foo2.git. It would really be nice to do a list of a git directory on the server. And yes, I see the problems for git. It would still be nice to have though.
Another solution which is a bit cleaner - just specify a different work tree.
To checkout everything from your HEAD (not index) to a specific out directory:
git --work-tree=/path/to/outputdir checkout HEAD -- .
To checkout a subdirectory or file from your HEAD to a specific directory:
git --work-tree=/path/to/outputdir checkout HEAD -- subdirname
If you are building your own boost do not forget to use the --layout=versioned
otherwise the search for a particular version of library will fail
ALTER TABLE Regions
ADD ( HasPhotoInReadyStorage bit,
HasPhotoInWorkStorage bit,
HasPhotoInMaterialStorage bit *(Missing ,)*
HasText bit);
Converting to a list without using the keys
method makes it more readable:
list(newdict)
and, when looping through dictionaries, there's no need for keys()
:
for key in newdict:
print key
unless you are modifying it within the loop which would require a list of keys created beforehand:
for key in list(newdict):
del newdict[key]
On Python 2 there is a marginal performance gain using keys()
.
When entered as the reference of a Named range
, it refers to range on the sheet the named range is used on.
For example, create a named range MyName
refering to =SUM(!B1:!K1)
Place a formula on Sheet1
=MyName
. This will sum Sheet1!B1:K1
Now place the same formula (=MyName
) on Sheet2
. That formula will sum Sheet2!B1:K1
Note: (as pnuts commented) this and the regular SheetName!B1:K1
format are relative, so reference different cells as the =MyName
formula is entered into different cells.
In views with {{}}
and/or ng-model, Angular is setting up $watch()
es for you behind the scenes.
By default $watch
compares by reference. If you set the third parameter to $watch
to true
, Angular will instead "shallow" watch the object for changes. For arrays this means comparing the array items, for object maps this means watching the properties. So this should do what you want:
$scope.$watch('myModel', function() { ... }, true);
Update: Angular v1.2 added a new method for this, `$watchCollection():
$scope.$watchCollection('myModel', function() { ... });
Note that the word "shallow" is used to describe the comparison rather than "deep" because references are not followed -- e.g., if the watched object contains a property value that is a reference to another object, that reference is not followed to compare the other object.
Add this into your httpd.conf file
Timeout 2400
ProxyTimeout 2400
ProxyBadHeader Ignore
Use string
instead of string?
in all places in your code.
The Nullable<T>
type requires that T is a non-nullable value type, for example int
or DateTime
. Reference types like string
can already be null. There would be no point in allowing things like Nullable<string>
so it is disallowed.
Also if you are using C# 3.0 or later you can simplify your code by using auto-implemented properties:
public class WordAndMeaning
{
public string Word { get; set; }
public string Meaning { get; set; }
}
If you need a function try this.
First we'll create a type:
CREATE OR REPLACE TYPE T_TABLE IS OBJECT
(
Field1 int
, Field2 VARCHAR(25)
);
CREATE TYPE T_TABLE_COLL IS TABLE OF T_TABLE;
/
Then we'll create the function:
CREATE OR REPLACE FUNCTION TEST_RETURN_TABLE
RETURN T_TABLE_COLL
IS
l_res_coll T_TABLE_COLL;
l_index number;
BEGIN
l_res_coll := T_TABLE_COLL();
FOR i IN (
WITH TAB AS
(SELECT '1001' ID, 'A,B,C,D,E,F' STR FROM DUAL
UNION
SELECT '1002' ID, 'D,E,F' STR FROM DUAL
UNION
SELECT '1003' ID, 'C,E,G' STR FROM DUAL
)
SELECT id,
SUBSTR(STR, instr(STR, ',', 1, lvl) + 1, instr(STR, ',', 1, lvl + 1) - instr(STR, ',', 1, lvl) - 1) name
FROM
( SELECT ',' || STR || ',' AS STR, id FROM TAB
),
( SELECT level AS lvl FROM dual CONNECT BY level <= 100
)
WHERE lvl <= LENGTH(STR) - LENGTH(REPLACE(STR, ',')) - 1
ORDER BY ID, NAME)
LOOP
IF i.ID = 1001 THEN
l_res_coll.extend;
l_index := l_res_coll.count;
l_res_coll(l_index):= T_TABLE(i.ID, i.name);
END IF;
END LOOP;
RETURN l_res_coll;
END;
/
Now we can select from it:
select * from table(TEST_RETURN_TABLE());
Output:
SQL> select * from table(TEST_RETURN_TABLE());
FIELD1 FIELD2
---------- -------------------------
1001 A
1001 B
1001 C
1001 D
1001 E
1001 F
6 rows selected.
Obviously you'd need to replace the WITH TAB AS...
bit with where you would be getting your actual data from.
Credit Credit
Here's a way with jQuery's element creation method (my preference) and with callback onLoad
:
var css = $("<link>", {
"rel" : "stylesheet",
"type" : "text/css",
"href" : "style.css"
})[0];
css.onload = function(){
console.log("CSS IN IFRAME LOADED");
};
document
.getElementsByTagName("head")[0]
.appendChild(css);
The workaround is simple. Just use the Uri().ToString() method and percent-encode white-spaces, if any, afterwards.
string path = new Uri("C:\my example?.txt").ToString().Replace(" ", "%20");
properly returns file:///C:/my%20example?.txt
Easier is subjective, but maybe the switch statement would be easier? You don't have to repeat the variable, so more values can fit on the line, and a line with many comparisons is more legible than the counterpart using the if statement.
var obj = {name: 'Krishna', gender: 'male'};
angular.forEach(obj, function(value, key) {
console.log(key + ': ' + value);
});
yields the attributes of obj
with their respective values:
name: Krishna
gender: male
Uses a "standard" set of character orderings (a,b,c, ... etc.). This is in contrast to some specific locales, which may sort characters in different orders ('a-with-acute' may be before or after 'a', depending on the locale, and so on).
On the other hand, looks purely at the values of the raw byte(s) that represent the character.
There's a great sample at http://msdn.microsoft.com/en-us/library/e6883c06.aspx that shows the results of the various StringComparison values. All the way at the end, it shows (excerpted):
StringComparison.InvariantCulture:
LATIN SMALL LETTER I (U+0069) is less than LATIN SMALL LETTER DOTLESS I (U+0131)
LATIN SMALL LETTER I (U+0069) is less than LATIN CAPITAL LETTER I (U+0049)
LATIN SMALL LETTER DOTLESS I (U+0131) is greater than LATIN CAPITAL LETTER I (U+0049)
StringComparison.Ordinal:
LATIN SMALL LETTER I (U+0069) is less than LATIN SMALL LETTER DOTLESS I (U+0131)
LATIN SMALL LETTER I (U+0069) is greater than LATIN CAPITAL LETTER I (U+0049)
LATIN SMALL LETTER DOTLESS I (U+0131) is greater than LATIN CAPITAL LETTER I (U+0049)
You can see that where InvariantCulture yields (U+0069, U+0049, U+00131), Ordinal yields (U+0049, U+0069, U+00131).
When using the saveas function the resolution isn't as good as when manually saving the figure with File-->Save As..., It's more recommended to use hgexport instead, as follows:
hgexport(gcf, 'figure1.jpg', hgexport('factorystyle'), 'Format', 'jpeg');
This will do exactly as manually saving the figure.
source: http://www.mathworks.com/support/solutions/en/data/1-1PT49C/index.html?product=SL&solution=1-1PT49C
You want to use the array_key_exists function.
Hey I got this error resolved by following the steps
c:\python27
to environment variablesConcatenate the attribute selectors:
input[name="Sex"][value="M"]
According to theory its the same things. Recursion and loop with the same O() complexity will work with the same theoretical speed, but of course real speed depends on language, compiler and processor. Example with power of number can be coded in iteration way with O(ln(n)):
int power(int t, int k) {
int res = 1;
while (k) {
if (k & 1) res *= t;
t *= t;
k >>= 1;
}
return res;
}
in Javascript.
var myObject = { "name" : "john" };
// { "name" : "john" };
myObject.gender = "male";
// { "name" : "john", "gender":"male"};
If you want to exclude the sub-directories, you can use
git diff <ref1>..<ref2> -- $(git diff <ref1>..<ref2> --name-only | grep -v /)
I can highly recommend Squirrel SQL.
Also see this similar question:
My solution for ie detection:
if (navigator.userAgent.match(/msie/i) || navigator.userAgent.match(/trident/i) ){
$("html").addClass("ie");
}
Jquery needed.
Giving write permissions to all IIS_USRS group is a bad idea from the security point of view. You dont need to do that and you can go with giving permissions only to system user running the application pool.
If you are using II7 (and I guess you do) do the following.
Note #1: if you see ApplicationPoolIdentity in #3 you need to reference this system user like this IIS AppPool{application_pool_name} . For example IIS AppPool\DefaultAppPool
Note #2: when adding this user make sure to set correct locations in the Select Users or Groups dialog. This needs to be set to local machine because this is local account.
Additionally to
openssl pkcs12 -in domain.pfx -clcerts -nokeys -out domain.cer
openssl pkcs12 -in domain.pfx -nocerts -nodes -out domain.key
I also generated Certificate Authority (CA) certificate:
openssl pkcs12 -in domain.pfx -out domain-ca.crt -nodes -nokeys -cacerts
And included it in Apache config file:
<VirtualHost 192.168.0.1:443>
...
SSLEngine on
SSLCertificateFile /path/to/domain.cer
SSLCertificateKeyFile /path/to/domain.key
SSLCACertificateFile /path/to/domain-ca.crt
...
</VirtualHost>
Mallocs and frees need to be paired up.
malloc grabbed a chunk of memory big enough for Person.
When you free you tell malloc the piece of memory starting "here" is no longer needed, it knows how much it allocated and frees it.
Whether you call
free(testPerson)
or
free(testPerson->firstName)
all that free() actually receives is an address, the same address, it can't tell which you called. Your code is much clearer if you use free(testPerson) though - it clearly matches up the with malloc.
You can use the WSDL2JAVA Codegen (or) You can simply use the 'Web Service/WebServiceClient' Wizard available in the Eclipse IDE. Open the IDE and press 'Ctrl+N', selectfor 'Web Service/WebServiceClient', specify the wsdl URL, ouput folder and select finish.
It creates the complete source files that you would need.
If you have a numpy array you can do this:
import numpy as np
from matplotlib import pyplot as plt
data = np.array([
[1, 2],
[2, 3],
[3, 6],
])
x, y = data.T
plt.scatter(x,y)
plt.show()
You have to loop through the array and printf()
each element:
for(int i=0;i<10;++i) {
printf("%.2f ", foo[i]);
}
printf("\n");
I did found a way to convert (even bad) html into well formed XML. I started to base this on the DOM loadHTML function. However during time several issues occurred and I optimized and added patches to correct side effects.
function tryToXml($dom,$content) {
if(!$content) return false;
// xml well formed content can be loaded as xml node tree
$fragment = $dom->createDocumentFragment();
// wonderfull appendXML to add an XML string directly into the node tree!
// aappendxml will fail on a xml declaration so manually skip this when occurred
if( substr( $content,0, 5) == '<?xml' ) {
$content = substr($content,strpos($content,'>')+1);
if( strpos($content,'<') ) {
$content = substr($content,strpos($content,'<'));
}
}
// if appendXML is not working then use below htmlToXml() for nasty html correction
if(!@$fragment->appendXML( $content )) {
return $this->htmlToXml($dom,$content);
}
return $fragment;
}
// convert content into xml
// dom is only needed to prepare the xml which will be returned
function htmlToXml($dom, $content, $needEncoding=false, $bodyOnly=true) {
// no xml when html is empty
if(!$content) return false;
// real content and possibly it needs encoding
if( $needEncoding ) {
// no need to convert character encoding as loadHTML will respect the content-type (only)
$content = '<meta http-equiv="Content-Type" content="text/html;charset='.$this->encoding.'">' . $content;
}
// return a dom from the content
$domInject = new DOMDocument("1.0", "UTF-8");
$domInject->preserveWhiteSpace = false;
$domInject->formatOutput = true;
// html type
try {
@$domInject->loadHTML( $content );
} catch(Exception $e){
// do nothing and continue as it's normal that warnings will occur on nasty HTML content
}
// to check encoding: echo $dom->encoding
$this->reworkDom( $domInject );
if( $bodyOnly ) {
$fragment = $dom->createDocumentFragment();
// retrieve nodes within /html/body
foreach( $domInject->documentElement->childNodes as $elementLevel1 ) {
if( $elementLevel1->nodeName == 'body' and $elementLevel1->nodeType == XML_ELEMENT_NODE ) {
foreach( $elementLevel1->childNodes as $elementInject ) {
$fragment->insertBefore( $dom->importNode($elementInject, true) );
}
}
}
} else {
$fragment = $dom->importNode($domInject->documentElement, true);
}
return $fragment;
}
protected function reworkDom( $node, $level = 0 ) {
// start with the first child node to iterate
$nodeChild = $node->firstChild;
while ( $nodeChild ) {
$nodeNextChild = $nodeChild->nextSibling;
switch ( $nodeChild->nodeType ) {
case XML_ELEMENT_NODE:
// iterate through children element nodes
$this->reworkDom( $nodeChild, $level + 1);
break;
case XML_TEXT_NODE:
case XML_CDATA_SECTION_NODE:
// do nothing with text, cdata
break;
case XML_COMMENT_NODE:
// ensure comments to remove - sign also follows the w3c guideline
$nodeChild->nodeValue = str_replace("-","_",$nodeChild->nodeValue);
break;
case XML_DOCUMENT_TYPE_NODE: // 10: needs to be removed
case XML_PI_NODE: // 7: remove PI
$node->removeChild( $nodeChild );
$nodeChild = null; // make null to test later
break;
case XML_DOCUMENT_NODE:
// should not appear as it's always the root, just to be complete
// however generate exception!
case XML_HTML_DOCUMENT_NODE:
// should not appear as it's always the root, just to be complete
// however generate exception!
default:
throw new exception("Engine: reworkDom type not declared [".$nodeChild->nodeType. "]");
}
$nodeChild = $nodeNextChild;
} ;
}
Now this also allows to add more html pieces into one XML which I needed to use myself. In general it can be used like this:
$c='<p>test<font>two</p>';
$dom=new DOMDocument('1.0', 'UTF-8');
$n=$dom->appendChild($dom->createElement('info')); // make a root element
if( $valueXml=tryToXml($dom,$c) ) {
$n->appendChild($valueXml);
}
echo '<pre/>'. htmlentities($dom->saveXml($n)). '</pre>';
In this example '<p>test<font>two</p>'
will nicely be outputed in well formed XML as '<info><p>test<font>two</font></p></info>
'. The info root tag is added as it will also allow to convert '<p>one</p><p>two</p>
' which is not XML as it has not one root element. However if you html does for sure have one root element then the extra root <info>
tag can be skipped.
With this I'm getting real nice XML out of unstructured and even corrupted HTML!
I hope it's a bit clear and might contribute to other people to use it.
There is not a program but you can make a batch file and run a command like that :
powershell "start-process 'C:\Program Files (x86)\IIS Express\iisexpress.exe' -workingdirectory 'C:\Program Files (x86)\IIS Express\' -windowstyle Hidden"
Unfortunately, it is not possible to "get" the height of an element via CSS because CSS is not a language that returns any sort of data other than rules for the browser to adjust its styling.
Your resolution can be achieved with jQuery, or alternatively, you can fake it with CSS3's transform:translateY();
rule.
If we assume that your target div in this instance is 200px high - this would mean that you want the div to have a margin of 190px?
This can be achieved by using the following CSS:
.dynamic-height {
-webkit-transform: translateY(100%); //if your div is 200px, this will move it down by 200px, if it is 100px it will down by 100px etc
transform: translateY(100%); //if your div is 200px, this will move it down by 200px, if it is 100px it will down by 100px etc
margin-top: -10px;
}
In this instance, it is important to remember that translateY(100%)
will move the element in question downwards by a total of it's own length.
The problem with this route is that it will not push element below it out of the way, where a margin would.
If faking it isn't going to work for you, then your next best bet would be to implement a jQuery script to add the correct CSS for you.
jQuery(document).ready(function($){ //wait for the document to load
$('.dynamic-height').each(function(){ //loop through each element with the .dynamic-height class
$(this).css({
'margin-top' : $(this).outerHeight() - 10 + 'px' //adjust the css rule for margin-top to equal the element height - 10px and add the measurement unit "px" for valid CSS
});
});
});
Besides the powerful options on the "Run Configurations.." on a well configured project you'll see the maven tasks on the Run As as well.
Even shorter and with json-functions:
JSONObject songsObject = json.getJSONObject("songs");
JSONArray songsArray = songsObject.toJSONArray(songsObject.names());
Code offset dynamic for dynamic page
var pos=$('#send').offset().top;
$('#loading').offset({ top : pos-220});
var str = "I expect five hundred dollars ($500) ($1).";
var rex = /\$\d+(?=\))/;
alert(rex.exec(str));
Will match the first number starting with a $ and followed by ')'. ')' will not be part of the match. The code alerts with the first match.
var str = "I expect five hundred dollars ($500) ($1).";
var rex = /\$\d+(?=\))/g;
var matches = str.match(rex);
for (var i = 0; i < matches.length; i++)
{
alert(matches[i]);
}
This code alerts with all the matches.
References:
search for "?=n" http://www.w3schools.com/jsref/jsref_obj_regexp.asp
search for "x(?=y)" https://developer.mozilla.org/en/docs/Web/JavaScript/Reference/Global_Objects/RegExp
Try this
function findSelection(field) {
var test = document.getElementsByName(field);
var sizes = test.length;
alert(sizes);
for (i=0; i < sizes; i++) {
if (test[i].checked==true) {
alert(test[i].value + ' you got a value');
return test[i].value;
}
}
}
function submitForm() {
var genderS = findSelection("genderS");
alert(genderS);
return false;
}
A fiddle here.
Use the DATEDIFF()
function.
Example from documentation:
SELECT DATEDIFF('2007-12-31 23:59:59','2007-12-30');
-> 1
The Timer function in VBA gives you the number of seconds elapsed since midnight, to 1/100 of a second.
Dim t as single
t = Timer
'code
MsgBox Timer - t
actually jQuery simply clears the value of the 'display' property, and doesn't set it to 'block' (see internal implementation of jQuery.showHide()) -
function showHide(elements, show) {
var display, elem, hidden,
...
if (show) {
// Reset the inline display of this element to learn if it is
// being hidden by cascaded rules or not
if (!values[index] && display === "none") {
elem.style.display = "";
}
...
if (!show || elem.style.display === "none" || elem.style.display === "") {
elem.style.display = show ? values[index] || "" : "none";
}
}
Please note that you can override $.fn.show()/$.fn.hide(); storing original display in element itself when hiding (e.g. as an attribute or in the $.data()); and then applying it back again when showing.
Also, using css important! will probably not work here - since setting a style inline is usually stronger than any other rule
document.evaluate()
(DOM Level 3 XPath) is supported in Firefox, Chrome, Safari and Opera - the only major browser missing is MSIE. Nevertheless, jQuery supports basic XPath expressions: http://docs.jquery.com/DOM/Traversing/Selectors#XPath_Selectors (moved into a plugin in the current jQuery version, see https://plugins.jquery.com/xpath/). It simply converts XPath expressions into equivalent CSS selectors however.
As for the negation, if you want to know if an element hasn't a class you can simply do as Mark said.
if (!currentPage.parent().hasClass('home')) { do what you want }
Add an attribute colspan
(abbriviation for 'column span') in your top cell (<td>
) and set its value to 2.
Your table should resembles the following;
<table>
<tr>
<td colspan = "2">
<!-- Merged Columns -->
</td>
</tr>
<tr>
<td>
<!-- Column 1 -->
</td>
<td>
<!-- Column 2 -->
</td>
</tr>
</table>
See also
W3 official docs on HTML Tables
Try
SwingUtilities.updateComponentTreeUI(frame);
If it still doesn't work then after completing the above step try
frame.invalidate();
frame.validate();
frame.repaint();
all inputs:
var inputs = $("#formId :input");
all buttons
var button = $("#formId :button")
I have found the EXECUTE command as suggested here T-SQL - function with default parameters to work well. With this approach there is no 'DEFAULT' needed when calling the function, you just omit the parameter as you would with a stored procedure.
Use CharField
for phone field in the model and the localflavor
app for form validation:
In Ubuntu the file path is ./opt/lampp/var/mysql
I know this is possible if the other application can attach itself to a win32 window handle. For example, we have a separate C# application that hosts a DirectX application inside one of its windows. I'm not familiar with the exact details of how this is implemented, but I think just passing the win32 Handle
of your panel to the other application is enough for that application to attach its DirectX surface.
I prefer using the File-class of .NET and its static methods as seen in the following example.
$content = [System.IO.File]::ReadAllText("c:\bla.txt").Replace("[MYID]","MyValue")
[System.IO.File]::WriteAllText("c:\bla.txt", $content)
This has the advantage of working with a single String instead of a String-array as with Get-Content. The methods also take care of the encoding of the file (UTF-8 BOM, etc.) without you having to take care most of the time.
Also the methods don't mess up the line endings (Unix line endings that might be used) in contrast to an algorithm using Get-Content and piping through to Set-Content.
So for me: Fewer things that could break over the years.
A little-known thing when using .NET classes is that when you have typed in "[System.IO.File]::" in the PowerShell window you can press the Tab key to step through the methods there.
If you're looking for a minimal solution that invalidates the cache, this edited version of Dr Manhattan's solution should be sufficient. Note that I'm specifying the root / directory to indicate I want the whole site refreshed.
export AWS_ACCESS_KEY_ID=<Key>
export AWS_SECRET_ACCESS_KEY=<Secret>
export AWS_DEFAULT_REGION=eu-west-1
echo "Invalidating cloudfrond distribution to get fresh cache"
aws cloudfront create-invalidation --distribution-id=<distributionId> --paths / --profile=<awsprofile>
Region Codes can be found here
You'll also need to create a profile using the aws cli.
Use the aws configure --profile
option. Below is an example snippet from Amazon.
$ aws configure --profile user2
AWS Access Key ID [None]: AKIAI44QH8DHBEXAMPLE
AWS Secret Access Key [None]: je7MtGbClwBF/2Zp9Utk/h3yCo8nvbEXAMPLEKEY
Default region name [None]: us-east-1
Default output format [None]: text
Use the %
operator with a string:
irb(main):001:0> "%03d" % 5
=> "005"
The left-hand-side is a printf format string, and the right-hand side can be a list of values, so you could do something like:
irb(main):002:0> filename = "%s/%s.%04d.txt" % ["dirname", "filename", 23]
=> "dirname/filename.0023.txt"
Here's a printf format cheat sheet you might find useful in forming your format string. The printf format is originally from the C
function printf
, but similar formating functions are available in perl, ruby, python, java, php, etc.
You can do it with plain JavaScript:
alert('123-4-'.substr(0, 4)); // outputs "123-"
This returns the first four characters of your string (adjust 4
to suit your needs).
The outermost quotes are consumed by Python itself, and the Windows shell doesn't see it. As mentioned above, Windows only understands double-quotes. Python will convert forward-slashed to backslashes on Windows, so you can use
os.system('"C://Temp/a b c/Notepad.exe"')
The ' is consumed by Python, which then passes "C://Temp/a b c/Notepad.exe" (as a Windows path, no double-backslashes needed) to CMD.EXE
for completeness, taken from this solution:
You could use toDateString:
var today = new Date();
var isToday = (today.toDateString() == otherDate.toDateString());
no library dependencies, and looking cleaner than the 'setHours()' approach shown in a previous answer, imho
(?=.*[a-z])(?=.*[A-Z])(?=.*\d)[a-zA-Z\d]{8,}$
Link check online https://regex101.com/r/mqGurh/1
See if this example provides any clarification. Basically you configure a set of routes and include partial templates based on the route. Setting ng-view in your main index.html allows you to inject those partial views.
The config portion looks like this:
.config(['$routeProvider', function($routeProvider) {
$routeProvider
.when('/', {controller:'ListCtrl', templateUrl:'list.html'})
.otherwise({redirectTo:'/'});
}])
The point of entry for injecting the partial view into your main template is:
<div class="container" ng-view=""></div>
Try creating a javascript function which runs this:
document.getElementById("youriframeid").contentWindow.location.reload(true);
Or maybe use an HTML workaround:
<html>
<body>
<center>
<a href="pagename.htm" target="middle">Refresh iframe</a>
<p>
<iframe src="pagename.htm" name="middle">
</p>
</center>
</body>
</html>
Both might be what you're looking for...
The IF statement has these forms in PL/SQL
:
IF THEN
IF THEN ELSE
IF THEN ELSIF
You have used elseif
which in terms of PL/SQL is wrong. That need to be replaced with ELSIF
.
So your code should appear like this.
declare
var_number number;
begin
var_number := 10;
if var_number > 100 then
dbms_output.put_line(var_number ||' is greater than 100');
--elseif should be replaced with elsif
elsif var_number < 100 then
dbms_output.put_line(var_number ||' is less than 100');
else
dbms_output.put_line(var_number ||' is equal to 100');
end if;
end;
System.Collections.Generic.Dictionary<TKey, TValue>
and System.Collections.Hashtable
classes both maintain a hash table data structure internally. None of them guarantee preserving the order of items.
Leaving boxing/unboxing issues aside, most of the time, they should have very similar performance.
The primary structural difference between them is that Dictionary
relies on chaining (maintaining a list of items for each hash table bucket) to resolve collisions whereas Hashtable
uses rehashing for collision resolution (when a collision occurs, tries another hash function to map the key to a bucket).
There is little benefit to use Hashtable
class if you are targeting for .NET Framework 2.0+. It's effectively rendered obsolete by Dictionary<TKey, TValue>
.
This fixed my issue:
Go to terminal shell and type mongo
.
Then type use db_name
.
Then type:
db.createUser(
{
user: "mongodb",
pwd: "dogmeatsubparflavour1337",
roles: [ { role: "dbOwner", db: "db_name" } ]
}
)
Also try: db.getUsers()
Quick sample:
const MongoClient = require('mongodb').MongoClient;
// MongoDB Connection Info
const url = 'mongodb://mongodb:[email protected]:27017/?authMechanism=DEFAULT&authSource=db_name';
// Additional options: https://docs.mongodb.com/manual/reference/connection-string/#connection-string-options
// Use Connect Method to connect to the Server
MongoClient.connect(url)
.then((db) => {
console.log(db);
console.log('Casually connected correctly to server.');
// Be careful with db.close() when working asynchronously
db.close();
})
.catch((error) => {
console.log(error);
});
NOTE: Not sure if the syntax I'm using in this answer was available when the older answers were written, but I think that this is a better approach on how to solve the example mentioned in this question.
I've had some issues related to this topic (overwriting interface properties), and this is how I'm handling it:
You can even use choose a default
value for the generic parameter as you can see in <T extends number | SOME_OBJECT = number>
type SOME_OBJECT = { foo: "bar" }
interface INTERFACE_A <T extends number | SOME_OBJECT = number> {
property: T;
}
type A_NUMBER = INTERFACE_A; // USES THE default = number TYPE. SAME AS INTERFACE_A<number>
type A_SOME_OBJECT = INTERFACE_A<SOME_OBJECT> // MAKES { property: SOME_OBJECT }
And this is the result:
const aNumber: A_NUMBER = {
property: 111 // THIS EXPECTS A NUMBER
}
const anObject: A_SOME_OBJECT = {
property: { // THIS EXPECTS SOME_OBJECT
foo: "bar"
}
}
This is how I ended up doing it:
private String printPhone(Long phoneNum) {
StringBuilder sb = new StringBuilder(15);
StringBuilder temp = new StringBuilder(phoneNum.toString());
while (temp.length() < 10)
temp.insert(0, "0");
char[] chars = temp.toString().toCharArray();
sb.append("(");
for (int i = 0; i < chars.length; i++) {
if (i == 3)
sb.append(") ");
else if (i == 6)
sb.append("-");
sb.append(chars[i]);
}
return sb.toString();
}
I understand that this does not support international numbers, but I'm not writing a "real" application so I'm not concerned about that. I only accept a 10 character long as a phone number. I just wanted to print it with some formatting.
Thanks for the responses.
String timeFrSSHStr = timeFrSSH.toString();
I had the issue that two reactor build pom.xml files had the same artefactId.
When using sp_rename which works like in above answers, check also which objects are affected after renaming, that reference that table, because you need to change those too
I took a code example for table dependencies at Pinal Dave's blog here
USE AdventureWorks
GO
SELECT
referencing_schema_name = SCHEMA_NAME(o.SCHEMA_ID),
referencing_object_name = o.name,
referencing_object_type_desc = o.type_desc,
referenced_schema_name,
referenced_object_name = referenced_entity_name,
referenced_object_type_desc = o1.type_desc,
referenced_server_name, referenced_database_name
--,sed.* -- Uncomment for all the columns
FROM
sys.sql_expression_dependencies sed
INNER JOIN
sys.objects o ON sed.referencing_id = o.[object_id]
LEFT OUTER JOIN
sys.objects o1 ON sed.referenced_id = o1.[object_id]
WHERE
referenced_entity_name = 'Customer'
So, all these dependent objects needs to be updated also
Or use some add-in if you can, some of them have feature to rename object, and all depend,ent objects too
sample code is here ,its very easy
LayoutParams params1 = (LayoutParams)twoLetter.getLayoutParams();//twoletter-imageview
params1.height = 70;
params1.setMargins(0, 210, 0, 0);//top margin -210 here
twoLetter.setLayoutParams(params1);//setting layout params
twoLetter.setImageResource(R.drawable.oo);
Technical Answer
Abstract classes cannot be instantiated - this is by definition and design.
From the JLS, Chapter 8. Classes:
A named class may be declared abstract (§8.1.1.1) and must be declared abstract if it is incompletely implemented; such a class cannot be instantiated, but can be extended by subclasses.
From JSE 6 java doc for Classes.newInstance():
InstantiationException - if this Class represents an abstract class, an interface, an array class, a primitive type, or void; or if the class has no nullary constructor; or if the instantiation fails for some other reason.
You can, of course, instantiate a concrete subclass of an abstract class (including an anonymous subclass) and also carry out a typecast of an object reference to an abstract type.
A Different Angle On This - Teamplay & Social Intelligence:
This sort of technical misunderstanding happens frequently in the real world when we deal with complex technologies and legalistic specifications.
"People Skills" can be more important here than "Technical Skills". If competitively and aggressively trying to prove your side of the argument, then you could be theoretically right, but you could also do more damage in having a fight / damaging "face" / creating an enemy than it is worth. Be reconciliatory and understanding in resolving your differences. Who knows - maybe you're "both right" but working off slightly different meanings for terms??
Who knows - though not likely, it is possible the interviewer deliberately introduced a small conflict/misunderstanding to put you into a challenging situation and see how you behave emotionally and socially. Be gracious and constructive with colleagues, follow advice from seniors, and follow through after the interview to resolve any challenge/misunderstanding - via email or phone call. Shows you're motivated and detail-oriented.
At date git prompts:
use "git rm --cached <file>..." to unstage
if files were not in the repo. It unstages the files keeping them there.use "git reset HEAD <file>..." to unstage
if the files were in the repo, and you are adding them as modified. It keeps the files as they are, and unstages them.At my knowledge you cannot undo the git add --
but you can unstage a list of files as mentioned above.
In Notepad++ go to Plugins > Plugin manager > Show Plugin Manager
then find Xml Tools
plugin. Tick the box and click Install
Open XML document you want to validate and click Ctrl+Shift+Alt+M (Or use Menu if this is your preference Plugins > XML Tools > Validate Now
).
Following dialog will open:
Click on ...
. Point to XSD file and I am pretty sure you'll be able to handle things from here.
Hope this saves you some time.
EDIT:
Plugin manager was not included in some versions of Notepad++ because many users didn't like commercials that it used to show. If you want to keep an older version, however still want plugin manager, you can get it on github, and install it by extracting the archive and copying contents to plugins and updates folder.
In version 7.7.1
plugin manager is back under a different guise... Plugin Admin
so now you can simply update notepad++ and have it back.
Say your column names are dynamic, you can create an empty row-named matrix and transform it to a data frame.
nms <- sample(LETTERS,sample(1:10))
as.data.frame(t(matrix(nrow=length(nms),ncol=0,dimnames=list(nms))))
Well, since your on a shared server, you can't do anything about it. They usually set the max execution time so that you can't override it. I suggest you contact them.
Magic word is: isset
Validate the entry:
if(isset($manta_option['iso_format_recent_works']) && $manta_option['iso_format_recent_works'] == 1){
$theme_img = 'recent_works_thumbnail';
} else {
$theme_img = 'recent_works_iso_thumbnail';
}
You can pass any number of arguments to the function that apply
is calling through either unnamed arguments, passed as a tuple to the args
parameter, or through other keyword arguments internally captured as a dictionary by the kwds
parameter.
For instance, let's build a function that returns True for values between 3 and 6, and False otherwise.
s = pd.Series(np.random.randint(0,10, 10))
s
0 5
1 3
2 1
3 1
4 6
5 0
6 3
7 4
8 9
9 6
dtype: int64
s.apply(lambda x: x >= 3 and x <= 6)
0 True
1 True
2 False
3 False
4 True
5 False
6 True
7 True
8 False
9 True
dtype: bool
This anonymous function isn't very flexible. Let's create a normal function with two arguments to control the min and max values we want in our Series.
def between(x, low, high):
return x >= low and x =< high
We can replicate the output of the first function by passing unnamed arguments to args
:
s.apply(between, args=(3,6))
Or we can use the named arguments
s.apply(between, low=3, high=6)
Or even a combination of both
s.apply(between, args=(3,), high=6)
You can specify the cookie file with a curl opt. You could use a unique file for each user.
curl_setopt( $curl_handle, CURLOPT_COOKIESESSION, true );
curl_setopt( $curl_handle, CURLOPT_COOKIEJAR, uniquefilename );
curl_setopt( $curl_handle, CURLOPT_COOKIEFILE, uniquefilename );
The best way to handle it would be to stick your request logic into a curl function and just pass the unique file name in as a parameter.
function fetch( $url, $z=null ) {
$ch = curl_init();
$useragent = isset($z['useragent']) ? $z['useragent'] : 'Mozilla/5.0 (Windows NT 6.1; WOW64; rv:10.0.2) Gecko/20100101 Firefox/10.0.2';
curl_setopt( $ch, CURLOPT_URL, $url );
curl_setopt( $ch, CURLOPT_RETURNTRANSFER, true );
curl_setopt( $ch, CURLOPT_AUTOREFERER, true );
curl_setopt( $ch, CURLOPT_FOLLOWLOCATION, true );
curl_setopt( $ch, CURLOPT_POST, isset($z['post']) );
if( isset($z['post']) ) curl_setopt( $ch, CURLOPT_POSTFIELDS, $z['post'] );
if( isset($z['refer']) ) curl_setopt( $ch, CURLOPT_REFERER, $z['refer'] );
curl_setopt( $ch, CURLOPT_USERAGENT, $useragent );
curl_setopt( $ch, CURLOPT_CONNECTTIMEOUT, ( isset($z['timeout']) ? $z['timeout'] : 5 ) );
curl_setopt( $ch, CURLOPT_COOKIEJAR, $z['cookiefile'] );
curl_setopt( $ch, CURLOPT_COOKIEFILE, $z['cookiefile'] );
$result = curl_exec( $ch );
curl_close( $ch );
return $result;
}
I use this for quick grabs. It takes the url and an array of options.
To prevent the flex items from shrinking, set the flex shrink factor to 0
:
The flex shrink factor determines how much the flex item will shrink relative to the rest of the flex items in the flex container when negative free space is distributed. When omitted, it is set to 1.
.boxcontainer .box {
flex-shrink: 0;
}
* {_x000D_
box-sizing: border-box;_x000D_
}_x000D_
.wrapper {_x000D_
width: 200px;_x000D_
background-color: #EEEEEE;_x000D_
border: 2px solid #DDDDDD;_x000D_
padding: 1rem;_x000D_
}_x000D_
.boxcontainer {_x000D_
position: relative;_x000D_
left: 0;_x000D_
border: 2px solid #BDC3C7;_x000D_
transition: all 0.4s ease;_x000D_
display: flex;_x000D_
}_x000D_
.boxcontainer .box {_x000D_
width: 100%;_x000D_
padding: 1rem;_x000D_
flex-shrink: 0;_x000D_
}_x000D_
.boxcontainer .box:first-child {_x000D_
background-color: #F47983;_x000D_
}_x000D_
.boxcontainer .box:nth-child(2) {_x000D_
background-color: #FABCC1;_x000D_
}_x000D_
#slidetrigger:checked ~ .wrapper .boxcontainer {_x000D_
left: -100%;_x000D_
}_x000D_
#overflowtrigger:checked ~ .wrapper {_x000D_
overflow: hidden;_x000D_
}
_x000D_
<input type="checkbox" id="overflowtrigger" />_x000D_
<label for="overflowtrigger">Hide overflow</label><br />_x000D_
<input type="checkbox" id="slidetrigger" />_x000D_
<label for="slidetrigger">Slide!</label>_x000D_
<div class="wrapper">_x000D_
<div class="boxcontainer">_x000D_
<div class="box">_x000D_
First bunch of content._x000D_
</div>_x000D_
<div class="box">_x000D_
Second load of content._x000D_
</div>_x000D_
</div>_x000D_
</div>
_x000D_
I have used a very simple solution. I have included a HTML element, that calls the method, in my Vue Component that I select, using Vanilla JS, and I trigger click!
In the Vue Component, I have included something like the following:
<span data-id="btnReload" @click="fetchTaskList()"><i class="fa fa-refresh"></i></span>
That I use using Vanilla JS:
const btnReload = document.querySelector('[data-id="btnReload"]');
btnReload.click();
One convention I'd like to try out is naming static modules with a 'the' prefix. Check this out. When I use someone else's module, it's not easy to see how I'm supposed to use it. eg:
define(['Lightbox'],function(Lightbox) {
var myLightbox = new Lightbox() // not sure whether this is a constructor (non-static) or not
myLightbox.show('hello')
})
I'm thinking about trying a convention where static modules use 'the' to indicate their preexistence. Has anyone seen a better way than this? Would look like this:
define(['theLightbox'],function(theLightbox) {
theLightbox.show('hello') // since I recognize the 'the' convention, I know it's static
})
Klocwork has a static analysis tool for C#: http://www.klocwork.com
To get the full path to the directory a Python file is contained in, write this in that file:
import os
dir_path = os.path.dirname(os.path.realpath(__file__))
(Note that the incantation above won't work if you've already used os.chdir()
to change your current working directory, since the value of the __file__
constant is relative to the current working directory and is not changed by an os.chdir()
call.)
To get the current working directory use
import os
cwd = os.getcwd()
Documentation references for the modules, constants and functions used above:
os
and os.path
modules.__file__
constantos.path.realpath(path)
(returns "the canonical path of the specified filename, eliminating any symbolic links encountered in the path")os.path.dirname(path)
(returns "the directory name of pathname path
")os.getcwd()
(returns "a string representing the current working directory")os.chdir(path)
("change the current working directory to path
")The draft CSS Selectors Level 4 proposes to add an of <other-selector>
grammar within the :nth-child
selector. This would allow you to pick out the nth child matching a given other selector:
:nth-child(1 of p.myclass)
Previous drafts used a new pseudo-class, :nth-match()
, so you may see that syntax in some discussions of the feature:
:nth-match(1 of p.myclass)
This has now been implemented in WebKit, and is thus available in Safari, but that appears to be the only browser that supports it. There are tickets filed for implementing it Blink (Chrome), Gecko (Firefox), and a request to implement it in Edge, but no apparent progress on any of these.
Simply add fill:"desiredColor" in the svg tag of the image: example:
<svg xmlns="http://www.w3.org/2000/svg" width="24" height="24" viewBox="0 0 24 24" fill="#bbb9c6">
<path d="M20 2H4c-1.1 0-1.99.9-1.99 2L2 22l4-4h14c1.1 0 2-.9 2-2V4c0-1.1-.9-2-2-2zm-2 12H6v-2h12v2zm0-3H6V9h12v2zm0-3H6V6h12v2z"/><path d="M0 0h24v24H0z" fill="none"/></svg>
Both are pretty similar. The real main difference between the two is that in the res
directory each file is given a pre-compiled ID
which can be accessed easily through R.id.[res id]
. This is useful to quickly and easily access images, sounds, icons...
The assets
directory is more like a filesystem and provides more freedom to put any file you would like in there. You then can access each of the files in that system as you would when accessing any file in any file system through Java. This directory is good for things such as game details, dictionaries,...etc. Hope that helps.
a = '123' if b else '456'
Checkboxes are a control type designed for one purpose: to ensure valid entry of Boolean values.
In Access, there are two types:
2-state -- can be checked or unchecked, but not Null. Values are True (checked) or False (unchecked). In Access and VBA, the value of True is -1 and the value of False is 0. For portability with environments that use 1 for True, you can always test for False or Not False, since False is the value 0 for all environments I know of.
3-state -- like the 2-state, but can be Null. Clicking it cycles through True/False/Null. This is for binding to an integer field that allows Nulls. It is of no use with a Boolean field, since it can never be Null.
Minor quibble with the answers:
There is almost never a need to use the .Value property of an Access control, as it's the default property. These two are equivalent:
?Me!MyCheckBox.Value
?Me!MyCheckBox
The only gotcha here is that it's important to be careful that you don't create implicit references when testing the value of a checkbox. Instead of this:
If Me!MyCheckBox Then
...write one of these options:
If (Me!MyCheckBox) Then ' forces evaluation of the control
If Me!MyCheckBox = True Then
If (Me!MyCheckBox = True) Then
If (Me!MyCheckBox = Not False) Then
Likewise, when writing subroutines or functions that get values from a Boolean control, always declare your Boolean parameters as ByVal unless you actually want to manipulate the control. In that case, your parameter's data type should be an Access control and not a Boolean value. Anything else runs the risk of implicit references.
Last of all, if you set the value of a checkbox in code, you can actually set it to any number, not just 0 and -1, but any number other than 0 is treated as True (because it's Not False). While you might use that kind of thing in an HTML form, it's not proper UI design for an Access app, as there's no way for the user to be able to see what value is actually be stored in the control, which defeats the purpose of choosing it for editing your data.
In controller:
function innerItem($scope, $element){
var jQueryInnerItem = $($element);
}
I can't find a way to create a table with icons in SO, so I am uploading 2 images.
sudo systemctl status sshd
? sshd.service - OpenSSH server daemon
Loaded: loaded (/usr/lib/systemd/system/sshd.service; disabled; vendor prese>
Active: inactive (dead)
Docs: man:sshd(8)
man:sshd_config(5)
sudo systemctl enable sshd
sudo systemctl start sshd
Maybe YAML.load ?
As an alternative to the other answers, it's possible to do this with a syntax similar to the way you originally intended if you do it via a case
statement rather than an if
:
session := Session{}
switch {
case Session{} == session:
fmt.Println("zero")
default:
fmt.Println("not zero")
}
On Windows pip3
should be in the Scripts
path of your Python installation:
C:\path\to\python\Scripts\pip3
Use:
where python
to find out where your Python executable(s) is/are located. The result should look like this:
C:\path\to\python\python.exe
or:
C:\path\to\python\python3.exe
You can check if pip3
works with this absolute path:
C:\path\to\python\Scripts\pip3
if yes, add C:\path\to\python\Scripts
to your environmental variable PATH
.
As an unordered collection type, set([8, 1, 6])
is equivalent to set([1, 6, 8])
.
While it might be nicer to display the set contents in sorted order, that would make the repr()
call more expensive.
Internally, the set
type is implemented using a hash table: a hash function is used to separate items into a number of buckets to reduce the number of equality operations needed to check if an item is part of the set.
To produce the repr()
output it just outputs the items from each bucket in turn, which is unlikely to be the sorted order.
userInfos.GroupBy(userInfo => userInfo.metric)
.OrderBy(group => group.Key)
.Select(group => Tuple.Create(group.Key, group.Count()));
Here's a way to combining string
, wstring
and mixed string constants to wstring
. Use the wstringstream
class.
This does NOT work for multi-byte character encodings. This is just a dumb way of throwing away type safety and expanding 7 bit characters from std::string into the lower 7 bits of each character of std:wstring. This is only useful if you have a 7-bit ASCII strings and you need to call an API that requires wide strings.
#include <sstream>
std::string narrow = "narrow";
std::wstring wide = L"wide";
std::wstringstream cls;
cls << " abc " << narrow.c_str() << L" def " << wide.c_str();
std::wstring total= cls.str();
You need to ensure that any code that modifies the HTTP headers is executed before the headers are sent. This includes statements like session_start()
. The headers will be sent automatically when any HTML is output.
Your problem here is that you're sending the HTML ouput at the top of your page before you've executed any PHP at all.
Move the session_start()
to the top of your document :
<?php session_start(); ?> <html> <head> <title>PHP SDK</title> </head> <body> <?php require_once 'src/facebook.php'; // more PHP code here.
<input type="radio" class="radioBtnClass" name="numbers" value="1" />1<br/>
<input type="radio" class="radioBtnClass" name="numbers" value="2" />2<br/>
<input type="radio" class="radioBtnClass" name="numbers" value="3" />3<br/>
This will return, checked radio button value.
if($("input[type='radio'].radioBtnClass").is(':checked')) {
var card_type = $("input[type='radio'].radioBtnClass:checked").val();
alert(card_type);
}
Much like the manual, use an equals (=
) sign in your definition of the parameters:
function dosomething($var1, $var2, $var3 = 'somevalue'){
// Rest of function here...
}
If you want to do that yourself, without using any external library, a clean way would be to create a template.html
file with all the static content, like for example:
<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"
"http://www.w3.org/TR/html4/loose.dtd">
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
<title>$title</title>
</head>
<body>$body
</body>
</html>
Put a tag like $tag
for any dynamic content and then do something like this:
File htmlTemplateFile = new File("path/template.html");
String htmlString = FileUtils.readFileToString(htmlTemplateFile);
String title = "New Page";
String body = "This is Body";
htmlString = htmlString.replace("$title", title);
htmlString = htmlString.replace("$body", body);
File newHtmlFile = new File("path/new.html");
FileUtils.writeStringToFile(newHtmlFile, htmlString);
Note: I used org.apache.commons.io.FileUtils for simplicity.
If you run
xcode-select --install
you do you not need to install gcc
through brew
, and you will not have to waste time compiling gcc
. See https://stackoverflow.com/a/24967219/2668545 for more details.
After that, you can simply do
brew tap homebrew/science
brew install Caskroom/cask/xquartz
brew install r
By using this on bootstrap 3:
#carousel-example-generic{
margin:auto;
}
Currently Angular CLI doesn't support the feature of renaming or refactoring code.
You can achieve such functionality with the help of some IDE.
Intellij, Eclipse, VSCode etc.. has default support the refactoring.
Nowadays VSCode is showing some uptrend,personally I'm a fan of this
Refactoring with VSCode
Determinig reference : -
VS Code help you find all references of a variable by selecting variable and pressing shortcut SHIFT
+ F12
. This works incredibly well with Type Script.
Renaming all instances of reference :-
After finding all the references you can press F2
will open a popup and you can change the value and click enter this will update all the instances of reference.
Renaming files and imports You can rename a file and its import references with a plugin. More details can be found here
With above steps after renaming the variables and files you can achieve the angular component renaming.
I'm not posting this as an answer but a confirmation to Paresh's accepted answer. I recently updated SDK tools to Revision 22 and I noticed my code changes was not being affective on the device i'm testing at all. Such as the url I was using, I was getting errors for connection time out regarding the url I was "previously" using. Therefore I cleaned the project and built again only to find out that autogenerated R.java file is missing.
After reading Paresh's answer and checking what's going on with my sdk manager this is what I saw:
SDK Build-tools 17 was not installed and there was already a new update to SDK tools even though it does not mention any change related to this problem in the changelog, this update brought back my R.java file and the related problems were gone after an eclipse restart and final clean/rebuild on the project.
The example code below demonstrates this in detail.
<%@page import="java.sql.*, java.io.*,listresult"%> //import the required library
<%
String label = request.getParameter("label"); // retrieving a variable from a previous page
Connection dbc = null; //Make connection to the database
Class.forName("com.mysql.jdbc.Driver");
dbc = DriverManager.getConnection("jdbc:mysql://localhost:3306/works", "root", "root");
if (dbc != null)
{
System.out.println("Connection successful");
}
ResultSet rs = listresult.dbresult.func(dbc, label); //This function is in the end. The function is defined in another package- listresult
%>
<form name="demo form" method="post">
<table>
<tr>
<td>
Label Name:
</td>
<td>
<input type="text" name="label" value="<%=rs.getString("labelname")%>">
</td>
<td>
<select name="label">
<option value="">SELECT</option>
<% while (rs.next()) {%>
<option value="<%=rs.getString("lname")%>"><%=rs.getString("lname")%>
</option>
<%}%>
</select>
</td>
</tr>
</table>
</form>
//The function:
public static ResultSet func(Connection dbc, String x)
{
ResultSet rs = null;
String sql;
PreparedStatement pst;
try
{
sql = "select lname from demo where label like '" + x + "'";
pst = dbc.prepareStatement(sql);
rs = pst.executeQuery();
}
catch (Exception e)
{
e.printStackTrace();
String sqlMessage = e.getMessage();
}
return rs;
}
I have tried to make this example as detailed as possible. Do ask if you have any queries.
TESTED Hope this helps someone.
My simple approach (Think tags as your original code)
<html>
<div ng-click="myfuncion">
<my-dir callfunction="myfunction">
</html>
<directive "my-dir">
callfunction:"=callfunction"
link : function(scope,element,attr) {
scope.callfunction = function() {
/// your code
}
}
</directive>
Inside <td>
, use style="border-left:1px solid #colour;"
If you are using Sentry
check the logged in user with Sentry::getUser()->id
. The error you get is that the Auth::user()
returns NULL and it tries to get id from NULL hence the error trying to get a property from a non-object
.
you can use this for 0.9.0.0. version kafka
./kafka-consumer-groups.sh --list --zookeeper hostname:potnumber
to view the groups you have created. This will display all the consumer group names.
./kafka-consumer-groups.sh --describe --zookeeper hostname:potnumber --describe --group consumer_group_name
To view the details
GROUP, TOPIC, PARTITION, CURRENT OFFSET, LOG END OFFSET, LAG, OWNER
[JsonProperty("name")]
public string name { get; set; }
[JsonProperty("Age")]
public int required { get; set; }
[JsonProperty("Location")]
public string type { get; set; }
and Remove a "{"..,
strFieldString = strFieldString.Remove(0, strFieldString.IndexOf('{'));
DeserializeObject..,
optionsItem objActualField = JsonConvert.DeserializeObject<optionsItem(strFieldString);
adding to scotty's answer:
Option 1: Either include this in your JS file:
<script src="https://ajax.googleapis.com/ajax/libs/angularjs/1.2.0rc1/angular-route.min.js"></script>
Option 2: or just use the URL to download 'angular-route.min.js' to your local.
and then (whatever option you choose) add this 'ngRoute' as dependency.
explained:
var app = angular.module('myapp', ['ngRoute']);
Cheers!!!
I found something very useful on this site when I was searching for an answer on this question. You can check it out at http://www.codingforums.com/javascript-programming/230503-how-get-margin-left-value.html. The part that helped me was the following:
/***
* get live runtime value of an element's css style
* http://robertnyman.com/2006/04/24/get-the-rendered-style-of-an-element
* note: "styleName" is in CSS form (i.e. 'font-size', not 'fontSize').
***/
var getStyle = function(e, styleName) {
var styleValue = "";
if (document.defaultView && document.defaultView.getComputedStyle) {
styleValue = document.defaultView.getComputedStyle(e, "").getPropertyValue(styleName);
} else if (e.currentStyle) {
styleName = styleName.replace(/\-(\w)/g, function(strMatch, p1) {
return p1.toUpperCase();
});
styleValue = e.currentStyle[styleName];
}
return styleValue;
}
////////////////////////////////////
var e = document.getElementById('yourElement');
var marLeft = getStyle(e, 'margin-left');
console.log(marLeft); // 10px
_x000D_
#yourElement {
margin-left: 10px;
}
_x000D_
<div id="yourElement"></div>
_x000D_
For me Authorization on remote git server solve the problem.
Try ps -ef
. man ps
will give you all the options.
-A Display information about other users' processes, including those without controlling terminals.
-e Identical to -A.
-f Display the uid, pid, parent pid, recent CPU usage, process start time, controlling tty, elapsed CPU usage, and the associated command. If the -u option is also used, display
the user name rather then the numeric uid. When -o or -O is used to add to the display following -f, the command field is not truncated as severely as it is in other formats.
It happens that /etc/hosts
file doesn't support wild card entries.
You'll have to use other services like dnsmasq. To enable it in dnsmasq, just edit dnsmasq.conf
and add the following line:
address=/example.com/127.0.0.1
In Eclipse,
Go to your class,
Right click->source->Generate toString()
;
It will override the toString()
method and will print the object of that class.
Try this it's simple and fast
SELECT T.name AS [TABLE NAME], I.rows AS [ROWCOUNT]
FROM sys.tables AS T
INNER JOIN sys.sysindexes AS I ON T.object_id = I.id
AND I.indid < 2 ORDER BY I.rows DESC
@aisbaa's answer works if you don't care when the environment variable was declared. If you want the environment variable, even if it has been declared inside of an exec /bin/bash
session, use something like:
IFS="=" read -a out <<< $(docker exec container /bin/bash -c "env | grep ENV_VAR" 2>&1)
It's not very pretty, but it gets the job done.
To then get the value, use:
echo ${out[1]}
Like @CoolBeans mentioned, take a look at jUnit. Here is a short tutorial to get you started as well with jUnit 4.x
Finally, if you really want to learn more about testing and test-driven development (TDD) I recommend you take a look at the following book by Kent Beck: Test-Driven Development By Example.
Not sure if it helps you still... but I had to do a small trick to make the image bigger but keeping it responsive
@media screen and (max-width: 368px) {
img.smallResolution{
min-height: 150px;
}
}
Hope it helps P.S. The max width can be anything you like
I did quickly fix it by going into "Design View" of the main Table of same Form and putting underline (_) between any field names that had spaces. I am now able to use the built in filters without the annoying popup about syntax problems.
You've got the same basic restriction when running a 32bit process under Win64. Your app runs in a 32 but subsystem which does its best to look like Win32, and this will include the memory restrictions for your process (lower 2GB for you, upper 2GB for the OS)
From the output of java -X
:
-Xloggc:<file> log GC status to a file with time stamps
Documented here:
-Xloggc:filename
Sets the file to which verbose GC events information should be redirected for logging. The information written to this file is similar to the output of
-verbose:gc
with the time elapsed since the first GC event preceding each logged event. The-Xloggc
option overrides-verbose:gc
if both are given with the samejava
command.Example:
-Xloggc:garbage-collection.log
So the output looks something like this:
0.590: [GC 896K->278K(5056K), 0.0096650 secs] 0.906: [GC 1174K->774K(5056K), 0.0106856 secs] 1.320: [GC 1670K->1009K(5056K), 0.0101132 secs] 1.459: [GC 1902K->1055K(5056K), 0.0030196 secs] 1.600: [GC 1951K->1161K(5056K), 0.0032375 secs] 1.686: [GC 1805K->1238K(5056K), 0.0034732 secs] 1.690: [Full GC 1238K->1238K(5056K), 0.0631661 secs] 1.874: [GC 62133K->61257K(65060K), 0.0014464 secs]
int index = -1;
while((index = text.indexOf("on", index + 1)) >= 0) {
LOG.d("index=" + index);
}
This would be highly dependent on the underlying architecture that the C is compiled to. Some processors and architectures might have explicit instructions for equal to, or less than and equal to, which execute in different numbers of cycles.
That would be pretty unusual though, as the compiler could work around it, making it irrelevant.
sudo mv /filename /etc/init.d/
sudo chmod +x /etc/init.d/filename
sudo update-rc.d filename defaults
Script should now start on boot. Note that this method also works with both hard links and symbolic links (ln
).
At this point in the boot process PATH isn't set yet, so it is critical that absolute paths are used throughout. BUT, as pointed out in the comments by Steve HHH, explicitly declaring the full file path (/etc/init.d/filename
) for the update-rc.d command is not valid in most versions of Linux. Per the manpage for update-rc.d, the second parameter is a script located in /etc/init.d/*
. Updated above code to reflect this.
Also as pointed out in the comments (by Charles Brandt), /filename
must be an init style script. A good template was also provided - https://github.com/fhd/init-script-template.
Another link to another article just to avoid possible link rot (although it would be saddening if GitHub died) - http://www.linux.com/learn/tutorials/442412-managing-linux-daemons-with-init-scripts
As pointed out in the comments (by Russell Yan), This works only on default mode of update-rc.d.
According to manual of update-rc.d, it can run on two modes, "the machines using the legacy mode will have a file /etc/init.d/.legacy-bootordering
", in which case you have to pass sequence and runlevel configuration through command line arguments.
The equivalent argument set for the above example is
sudo update-rc.d filename start 20 2 3 4 5 . stop 20 0 1 6 .
Hook:
import {useState} from "react";
const useDebounce = ({defaultTimeout = 250, defaultIdentifier = 'default'} = {}) => {
const [identifiers, setIdentifiers] = useState({[defaultIdentifier]: null});
return ({fn = null, identifier = defaultIdentifier, timeout = defaultTimeout} = {}) => {
if (identifiers.hasOwnProperty(identifier)) clearTimeout(identifiers[identifier]);
setIdentifiers({...identifiers, [identifier]: setTimeout(fn, timeout)});
};
};
export default useDebounce;
And use it anywhere (in same file use identifier to prevent concurrence) like:
const debounce = useDebounce();
const handlerA = () => {
debounce({fn: () => console.log('after 2000ms of last call with identifier A'), identifier: 'A', timeout: 2000});
};
const handlerB = () => {
debounce({fn: () => console.log('after 1500ms of last call with identifier B'), identifier: 'B', timeout: 1500});
};
I wanted to do the same thing as, but I wanted to do it in the one file.
So the logic would be:
I modified the answer by Bakuriu and came up with this:
from os import getpid
from sys import argv, exit
import psutil ## pip install psutil
myname = argv[0]
mypid = getpid()
for process in psutil.process_iter():
if process.pid != mypid:
for path in process.cmdline():
if myname in path:
print "process found"
process.terminate()
exit()
## your program starts here...
Running the script will do whatever the script does. Running another instance of the script will kill any existing instance of the script.
I use this to display a little PyGTK calendar widget which runs when I click the clock. If I click and the calendar is not up, the calendar displays. If the calendar is running and I click the clock, the calendar disappears.
Here's my solution:
@arr = ['<p>Hello World</p>', '<p>This is a test</p>']
@arr.reduce(:+)
=> <p>Hello World</p><p>This is a test</p>
You can do something like req.param('tagId')
var date = new Date().toLocaleDateString()
"12/30/2009"
If more databases exist use following codes in PowerShell
Add-Migration Starter -context EnrollmentAppContext
'Starter' is Migration Name
'EnrollmentAppContext' is name of my app Context
You can open PowerShell in VS by doing:
Tools->NuGet Package Manager->Package Manager Console
<select name="country" formControlName="country" id="country"
class="formcontrol form-control-element" [(ngModel)]="country">
<option value="90">Turkey</option>
<option value="1">USA</option>
<option value="30">Greece</option>
</select>
name="country"
formControlName="country"
[(ngModel)]="country"
Those are the three things need to use ngModel inside a formGroup directive.
Note that same name should be used.
You can always extend String
prototype like this:
// Checks that string starts with the specific string
if (typeof String.prototype.startsWith != 'function') {
String.prototype.startsWith = function (str) {
return this.slice(0, str.length) == str;
};
}
// Checks that string ends with the specific string...
if (typeof String.prototype.endsWith != 'function') {
String.prototype.endsWith = function (str) {
return this.slice(-str.length) == str;
};
}
And use it like this:
var str = 'Hello World';
if( str.startsWith('Hello') ) {
// your string starts with 'Hello'
}
if( str.endsWith('World') ) {
// your string ends with 'World'
}
We should make everything easier for everyone because you can simply combine JS to PHP Combining PHP and JS is pretty easy.
$house_number = HOUSE_NUMBER;
echo "<script type='text/javascript'>document.forms[0].house_number.value = $house_number; document.forms[0].submit();</script>";
Or a somewhat safer way
$house_number = HOUSE_NUMBER;
echo "<script type='text/javascript'>document.forms[0].house_number.value = " . $house_number . "; document.forms[0].submit();</script>";
You can create an empty DataFrame with either column names or an Index:
In [4]: import pandas as pd
In [5]: df = pd.DataFrame(columns=['A','B','C','D','E','F','G'])
In [6]: df
Out[6]:
Empty DataFrame
Columns: [A, B, C, D, E, F, G]
Index: []
Or
In [7]: df = pd.DataFrame(index=range(1,10))
In [8]: df
Out[8]:
Empty DataFrame
Columns: []
Index: [1, 2, 3, 4, 5, 6, 7, 8, 9]
Edit: Even after your amendment with the .to_html, I can't reproduce. This:
df = pd.DataFrame(columns=['A','B','C','D','E','F','G'])
df.to_html('test.html')
Produces:
<table border="1" class="dataframe">
<thead>
<tr style="text-align: right;">
<th></th>
<th>A</th>
<th>B</th>
<th>C</th>
<th>D</th>
<th>E</th>
<th>F</th>
<th>G</th>
</tr>
</thead>
<tbody>
</tbody>
</table>
Test if your variable is an instance of numbers.Number
:
>>> import numbers
>>> import decimal
>>> [isinstance(x, numbers.Number) for x in (0, 0.0, 0j, decimal.Decimal(0))]
[True, True, True, True]
This uses ABCs and will work for all built-in number-like classes, and also for all third-party classes if they are worth their salt (registered as subclasses of the Number
ABC).
However, in many cases you shouldn't worry about checking types manually - Python is duck typed and mixing somewhat compatible types usually works, yet it will barf an error message when some operation doesn't make sense (4 - "1"
), so manually checking this is rarely really needed. It's just a bonus. You can add it when finishing a module to avoid pestering others with implementation details.
This works starting with Python 2.6. On older versions you're pretty much limited to checking for a few hardcoded types.
Let's go over the basics: "Accessor" and "Mutator" are just fancy names fot a getter and a setter. A getter, "Accessor", returns a class's variable or its value. A setter, "Mutator", sets a class variable pointer or its value.
So first you need to set up a class with some variables to get/set:
public class IDCard
{
private String mName;
private String mFileName;
private int mID;
}
But oh no! If you instantiate this class the default values for these variables will be meaningless. B.T.W. "instantiate" is a fancy word for doing:
IDCard test = new IDCard();
So - let's set up a default constructor, this is the method being called when you "instantiate" a class.
public IDCard()
{
mName = "";
mFileName = "";
mID = -1;
}
But what if we do know the values we wanna give our variables? So let's make another constructor, one that takes parameters:
public IDCard(String name, int ID, String filename)
{
mName = name;
mID = ID;
mFileName = filename;
}
Wow - this is nice. But stupid. Because we have no way of accessing (=reading) the values of our variables. So let's add a getter, and while we're at it, add a setter as well:
public String getName()
{
return mName;
}
public void setName( String name )
{
mName = name;
}
Nice. Now we can access mName
. Add the rest of the accessors and mutators and you're now a certified Java newbie.
Good luck.
select * from Table ORDER BY id LIMIT 30
Notes:
* id
should be unique.
* You can control the numbers of rows returned by replacing the 30
in the query
Do the following.
Close the sdk manager and eclipse.
Go to the folder where you have stored your adt.
In that adt folder you'll find a folder known as tools.
Make a copy of the contents of that folder and paste it in a folder called copytools.
Now go to the command prompt and go to the location of the copytools.
Then execute the command android.bat the sdk manager will start.
Now update all the plugins you want. It'll update your original folder.
After the update delete the copy.
Enjoy. Hope this helps.
I ran in the same situation and the script was correctly loading in safe mode. However, disabling all the Add-ons and other Firefox security features didn't help. One thing I tried, and this was the solution in my case, was to temporary disable the cache from the developer window for this particular request. After I saw this was the cause, I wiped out the cache for that site and everything started word normally.
If you are using windows, sometimes this may happen because Windows stores credentials for outer repo (in our case github) in its own storage. And credentials that saved there can be different from those you need right now.
So to avoid this problem, just find github in this storage and delete saved credentials. After this, while pushing git will request your credentials and will allow you to push.
For those whom this did not work, here is how I hid the labels on the X-axis-
options: {
maintainAspectRatio: false,
layout: {
padding: {
left: 1,
right: 2,
top: 2,
bottom: 0,
},
},
scales: {
xAxes: [
{
time: {
unit: 'Areas',
},
gridLines: {
display: false,
drawBorder: false,
},
ticks: {
maxTicksLimit: 7,
display: false, //this removed the labels on the x-axis
},
'dataset.maxBarThickness': 5,
},
],
Another sed version:
sed 's|/[:alnum:].*||' file.txt
It matches /
followed by an alphanumeric character (so not another forward slash) as well as the rest of characters till the end of the line. Afterwards it replaces it with nothing (ie. deletes it.)
You can do that in this way:
export enum GoalProgressMeasurements {
Percentage = 1,
Numeric_Target = 2,
Completed_Tasks = 3,
Average_Milestone_Progress = 4,
Not_Measured = 5
}
export class GoalProgressMeasurement {
constructor(public goalProgressMeasurement: GoalProgressMeasurements, public name: string) {
}
}
export var goalProgressMeasurements: { [key: number]: GoalProgressMeasurement } = {
1: new GoalProgressMeasurement(GoalProgressMeasurements.Percentage, "Percentage"),
2: new GoalProgressMeasurement(GoalProgressMeasurements.Numeric_Target, "Numeric Target"),
3: new GoalProgressMeasurement(GoalProgressMeasurements.Completed_Tasks, "Completed Tasks"),
4: new GoalProgressMeasurement(GoalProgressMeasurements.Average_Milestone_Progress, "Average Milestone Progress"),
5: new GoalProgressMeasurement(GoalProgressMeasurements.Not_Measured, "Not Measured"),
}
And you can use it like this:
var gpm: GoalProgressMeasurement = goalProgressMeasurements[GoalProgressMeasurements.Percentage];
var gpmName: string = gpm.name;
var myProgressId: number = 1; // the value can come out of drop down selected value or from back-end , so you can imagine the way of using
var gpm2: GoalProgressMeasurement = goalProgressMeasurements[myProgressId];
var gpmName: string = gpm.name;
You can extend the GoalProgressMeasurement with additional properties of the object as you need. I'm using this approach for every enumeration that should be an object containing more then a value.
# spliting a string by the length of the string
def len_split(string,sub_string):
n,sub,str1=list(string),len(sub_string),')/^0*/-'
for i in range(sub,len(n)+((len(n)-1)//sub),sub+1):
n.insert(i,str1)
n="".join(n)
n=n.split(str1)
return n
x="divyansh_looking_for_intership_actively_contact_Me_here"
sub="four"
print(len_split(x,sub))
# Result-> ['divy', 'ansh', 'tiwa', 'ri_l', 'ooki', 'ng_f', 'or_i', 'nter', 'ship', '_con', 'tact', '_Me_', 'here']
Both if (one.length() > 0) {}
and if (!"".equals(one)) {}
will check against an empty foo parameter, and an empty parameter is what you'd get if the the form is submitted with no value in the foo
text field.
If there's any chance you can use the Expression Language to handle the parameter, you could
access it with empty param.foo
in an expression.
<c:if test='${not empty param.foo}'>
This page code gets rendered.
</c:if>
All the current answers assume that it is okay to pull the entire JSON into memory where the advantage of an InputStream is that you can read the input little by little. If you would like to avoid reading the entire Json file at once then I would suggest using the Jackson library (which is my personal favorite but I'm sure others like Gson have similar functions).
With Jackson you can use a JsonParser to read one section at a time. Below is an example of code I wrote that wraps the reading of an Array of JsonObjects in an Iterator. If you just want to see an example of Jackson, look at the initJsonParser, initFirstElement, and initNextObject methods.
public class JsonObjectIterator implements Iterator<Map<String, Object>>, Closeable {
private static final Logger LOG = LoggerFactory.getLogger(JsonObjectIterator.class);
private final InputStream inputStream;
private JsonParser jsonParser;
private boolean isInitialized;
private Map<String, Object> nextObject;
public JsonObjectIterator(final InputStream inputStream) {
this.inputStream = inputStream;
this.isInitialized = false;
this.nextObject = null;
}
private void init() {
this.initJsonParser();
this.initFirstElement();
this.isInitialized = true;
}
private void initJsonParser() {
final ObjectMapper objectMapper = new ObjectMapper();
final JsonFactory jsonFactory = objectMapper.getFactory();
try {
this.jsonParser = jsonFactory.createParser(inputStream);
} catch (final IOException e) {
LOG.error("There was a problem setting up the JsonParser: " + e.getMessage(), e);
throw new RuntimeException("There was a problem setting up the JsonParser: " + e.getMessage(), e);
}
}
private void initFirstElement() {
try {
// Check that the first element is the start of an array
final JsonToken arrayStartToken = this.jsonParser.nextToken();
if (arrayStartToken != JsonToken.START_ARRAY) {
throw new IllegalStateException("The first element of the Json structure was expected to be a start array token, but it was: " + arrayStartToken);
}
// Initialize the first object
this.initNextObject();
} catch (final Exception e) {
LOG.error("There was a problem initializing the first element of the Json Structure: " + e.getMessage(), e);
throw new RuntimeException("There was a problem initializing the first element of the Json Structure: " + e.getMessage(), e);
}
}
private void initNextObject() {
try {
final JsonToken nextToken = this.jsonParser.nextToken();
// Check for the end of the array which will mean we're done
if (nextToken == JsonToken.END_ARRAY) {
this.nextObject = null;
return;
}
// Make sure the next token is the start of an object
if (nextToken != JsonToken.START_OBJECT) {
throw new IllegalStateException("The next token of Json structure was expected to be a start object token, but it was: " + nextToken);
}
// Get the next product and make sure it's not null
this.nextObject = this.jsonParser.readValueAs(new TypeReference<Map<String, Object>>() { });
if (this.nextObject == null) {
throw new IllegalStateException("The next parsed object of the Json structure was null");
}
} catch (final Exception e) {
LOG.error("There was a problem initializing the next Object: " + e.getMessage(), e);
throw new RuntimeException("There was a problem initializing the next Object: " + e.getMessage(), e);
}
}
@Override
public boolean hasNext() {
if (!this.isInitialized) {
this.init();
}
return this.nextObject != null;
}
@Override
public Map<String, Object> next() {
// This method will return the current object and initialize the next object so hasNext will always have knowledge of the current state
// Makes sure we're initialized first
if (!this.isInitialized) {
this.init();
}
// Store the current next object for return
final Map<String, Object> currentNextObject = this.nextObject;
// Initialize the next object
this.initNextObject();
return currentNextObject;
}
@Override
public void close() throws IOException {
IOUtils.closeQuietly(this.jsonParser);
IOUtils.closeQuietly(this.inputStream);
}
}
If you don't care about memory usage, then it would certainly be easier to read the entire file and parse it as one big Json as mentioned in other answers.
Diogo
Justin has given you some very fine tips :)
You will also get that error if the cell where you are performing the calculation has an error resulting from a formula.
For example if Cell A1 has #DIV/0! error then you will get "Excel VBA Run-time error '13' Type mismatch" when performing this code
Sheets("Sheet1").Range("A1").Value - 1
I have made some slight changes to your code. Could you please test it for me? Copy the code with the line numbers as I have deliberately put them there.
Option Explicit
Sub Sample()
Dim ws As Worksheet
Dim x As Integer, i As Integer, a As Integer, y As Integer
Dim name As String
Dim lastRow As Long
10 On Error GoTo Whoa
20 Application.ScreenUpdating = False
30 name = InputBox("Please insert the name of the sheet")
40 If Len(Trim(name)) = 0 Then Exit Sub
50 Set ws = Sheets(name)
60 With ws
70 If Not IsError(.Range("BE4").Value) Then
80 x = Val(.Range("BE4").Value)
90 Else
100 MsgBox "Please check the value of cell BE4. It seems to have an error"
110 GoTo LetsContinue
120 End If
130 .Range("BF4").Value = x
140 lastRow = .Range("BE" & Rows.Count).End(xlUp).Row
150 For i = 5 To lastRow
160 If IsError(.Range("BE" & i)) Then
170 MsgBox "Please check the value of cell BE" & i & ". It seems to have an error"
180 GoTo LetsContinue
190 End If
200 a = 0: y = Val(.Range("BE" & i))
210 If y <> x Then
220 If y <> 0 Then
230 If y = 3 Then
240 a = x
250 .Range("BF" & i) = Val(.Range("BE" & i)) - x
260 x = Val(.Range("BE" & i)) - x
270 End If
280 .Range("BF" & i) = Val(.Range("BE" & i)) - a
290 x = Val(.Range("BE" & i)) - a
300 Else
310 .Range("BF" & i).ClearContents
320 End If
330 Else
340 .Range("BF" & i).ClearContents
350 End If
360 Next i
370 End With
LetsContinue:
380 Application.ScreenUpdating = True
390 Exit Sub
Whoa:
400 MsgBox "Error Description :" & Err.Description & vbNewLine & _
"Error at line : " & Erl
410 Resume LetsContinue
End Sub
Based on http://html5-demos.appspot.com/static/a.download.html:
var fileContent = "My epic novel that I don't want to lose.";
var bb = new Blob([fileContent ], { type: 'text/plain' });
var a = document.createElement('a');
a.download = 'download.txt';
a.href = window.URL.createObjectURL(bb);
a.click();
Modified the original fiddle: http://jsfiddle.net/9av2mfjx/
A good and simple example for nested try/except could be the following:
import numpy as np
def divide(x, y):
try:
out = x/y
except:
try:
out = np.inf * x / abs(x)
except:
out = np.nan
finally:
return out
Now try various combinations and you will get the correct result:
divide(15, 3)
# 5.0
divide(15, 0)
# inf
divide(-15, 0)
# -inf
divide(0, 0)
# nan
(Of course, we have NumPy, so we don't need to create this function.)
a += b
is essentially the same as a = a + b
, except that:
+
always returns a newly allocated object, but +=
should (but doesn't have to) modify the object in-place if it's mutable (e.g. list
or dict
, but int
and str
are immutable).
In a = a + b
, a
is evaluated twice.
If this is the first time you encounter the +=
operator, you may wonder why it matters that it may modify the object in-place instead of building a new one. Here is an example:
# two variables referring to the same list
>>> list1 = []
>>> list2 = list1
# += modifies the object pointed to by list1 and list2
>>> list1 += [0]
>>> list1, list2
([0], [0])
# + creates a new, independent object
>>> list1 = []
>>> list2 = list1
>>> list1 = list1 + [0]
>>> list1, list2
([0], [])
Trying ?max
, you'll see that it actually has a na.rm =
argument, set by default to FALSE
. (That's the common default for many other R functions, including sum()
, mean()
, etc.)
Setting na.rm=TRUE
does just what you're asking for:
d <- c(1, 100, NA, 10)
max(d, na.rm=TRUE)
If you do want to remove all of the NA
s, use this idiom instead:
d <- d[!is.na(d)]
A final note: Other functions (e.g. table()
, lm()
, and sort()
) have NA
-related arguments that use different names (and offer different options). So if NA
's cause you problems in a function call, it's worth checking for a built-in solution among the function's arguments. I've found there's usually one already there.
The first example doesn't work because you can't assign values to arrays - arrays work (sort of) like const pointers in this respect. What you can do though is copy a new value into the array:
strcpy(p.name, "Jane");
Char arrays are fine to use if you know the maximum size of the string in advance, e.g. in the first example you are 100% sure that the name will fit into 19 characters (not 20 because one character is always needed to store the terminating zero value).
Conversely, pointers are better if you don't know the possible maximum size of your string, and/or you want to optimize your memory usage, e.g. avoid reserving 512 characters for the name "John". However, with pointers you need to dynamically allocate the buffer they point to, and free it when not needed anymore, to avoid memory leaks.
Update: example of dynamically allocated buffers (using the struct definition in your 2nd example):
char* firstName = "Johnnie";
char* surname = "B. Goode";
person p;
p.name = malloc(strlen(firstName) + 1);
p.surname = malloc(strlen(surname) + 1);
p.age = 25;
strcpy(p.name, firstName);
strcpy(p.surname, surname);
printf("Name: %s; Age: %d\n",p.name,p.age);
free(p.surname);
free(p.name);
Here is the command-line approach to answer this question:
gcloud compute firewall-rules create <rule-name> --allow tcp:9090 --source-tags=<list-of-your-instances-names> --source-ranges=0.0.0.0/0 --description="<your-description-here>"
This will open the port 9090
for the instances that you name. Omitting --source-tags
and --source-ranges
will apply the rule to all instances. More details are in the Gcloud documentation and the firewall-rule create
command manual
The previous answers are great, but Google recommends using the newer gcloud
commands instead of the gcutil
commands.
PS:
To get an idea of Google's firewall rules, run gcloud compute firewall-rules list
and view all your firewall rules
String one, two, three;
one = two = three = "";
This should work with immutable objects. It doesn't make any sense for mutable objects for example:
Person firstPerson, secondPerson, thirdPerson;
firstPerson = secondPerson = thirdPerson = new Person();
All the variables would be pointing to the same instance. Probably what you would need in that case is:
Person firstPerson = new Person();
Person secondPerson = new Person();
Person thirdPerson = new Person();
Or better yet use an array or a Collection
.
I have a solution for you.
Just you need to install a plugin named Indent By Fold
.
You can install this by going through
Plugins -> Plugin Manager -> Show Plugin Manager
. ORPlugins -> Plugins Admin -> chekmark Indent By Fold from list
than install
Then just select the list item and all you need is to type the first word then you got it.
you can use this plugin from a plugin in the menu bar.
To get Consumer Key & Consumer Secret, you have to create an app in Twitter via
https://developer.twitter.com/en/apps
Then you'll be taken to a page containing Consumer Key & Consumer Secret.
Hopefully this information will clarify OAuth essentials for Twitter:
This worked for me: Open task manager (of your OS) and kill adb.exe process. Now start adb again, now adb should start normally.
Given that the only logical difference between the handlers is the value of the button clicked, you can use the this
keyword to refer to the element which raised the event and get the val()
from that. Try this:
$("button").click(function(e) {
e.preventDefault();
$.ajax({
type: "POST",
url: "/pages/test/",
data: {
id: $(this).val(), // < note use of 'this' here
access_token: $("#access_token").val()
},
success: function(result) {
alert('ok');
},
error: function(result) {
alert('error');
}
});
});
I'm not sure I agree with the module pattern being used as a replacement for a singleton pattern. I've often seen singletons used and abused in places where they're wholly unnecessary, and I'm sure the module pattern fills many gaps where programmers would otherwise use a singleton. However, the module pattern is not a singleton.
var foo = (function () {
"use strict";
function aPrivateFunction() {}
return { aPublicFunction: function () {...}, ... };
}());
Everything initialized in the module pattern happens when Foo
is declared. Additionally, the module pattern can be used to initialize a constructor, which could then be instantiated multiple times. While the module pattern is the right tool for many jobs, it's not equivalent to a singleton.
var Foo = function () {
"use strict";
if (Foo._instance) {
// This allows the constructor to be called multiple times
// and refer to the same instance. Another option is to
// throw an error.
return Foo._instance;
}
Foo._instance = this;
// Foo initialization code
};
Foo.getInstance = function () {
"use strict";
return Foo._instance || new Foo();
}
long form, using module pattern
var Foo = (function () {
"use strict";
var instance; //prevent modification of "instance" variable
function Singleton() {
if (instance) {
return instance;
}
instance = this;
//Singleton initialization code
}
// Instance accessor
Singleton.getInstance = function () {
return instance || new Singleton();
}
return Singleton;
}());
In both versions of the singleton pattern that I've provided, the constructor itself can be used as the accessor:
var a,
b;
a = new Foo(); // Constructor initialization happens here
b = new Foo();
console.log(a === b); //true
If you don't feel comfortable using the constructor this way, you can throw an error in the if (instance)
statement, and stick to using the long form:
var a,
b;
a = Foo.getInstance(); // Constructor initialization happens here
b = Foo.getInstance();
console.log(a === b); // true
I should also mention that the singleton pattern fits well with the implicit constructor function pattern:
function Foo() {
if (Foo._instance) {
return Foo._instance;
}
// If the function wasn't called as a constructor,
// call it as a constructor and return the result
if (!(this instanceof Foo)) {
return new Foo();
}
Foo._instance = this;
}
var f = new Foo(); // Calls Foo as a constructor
-or-
var f = Foo(); // Also calls Foo as a constructor
It looks like you're passing in Null for every argument except for PropertyValueID and DropDownOptionID, right? I don't think any of your IF statements will fire if only these two values are not-null. In short, I think you have a logic error.
Other than that, I would suggest two things...
First, instead of testing for NULL, use this kind syntax on your if statements (it's safer)...
ELSE IF ISNULL(@UnitValue, 0) != 0 AND ISNULL(@UnitOfMeasureID, 0) = 0
Second, add a meaningful PRINT statement before each UPDATE. That way, when you run the sproc in MSSQL, you can look at the messages and see how far it's actually getting.
Here's a rather simple solution:
In the controller we return our errors like this:
if (!ModelState.IsValid)
{
return Json(new { success = false, errors = ModelState.Values.SelectMany(x => x.Errors).Select(x => x.ErrorMessage).ToList() }, JsonRequestBehavior.AllowGet);
}
Here's some of the client script:
function displayValidationErrors(errors)
{
var $ul = $('div.validation-summary-valid.text-danger > ul');
$ul.empty();
$.each(errors, function (idx, errorMessage) {
$ul.append('<li>' + errorMessage + '</li>');
});
}
That's how we handle it via ajax:
$.ajax({
cache: false,
async: true,
type: "POST",
url: form.attr('action'),
data: form.serialize(),
success: function (data) {
var isSuccessful = (data['success']);
if (isSuccessful) {
$('#partial-container-steps').html(data['view']);
initializePage();
}
else {
var errors = data['errors'];
displayValidationErrors(errors);
}
}
});
Also, I render partial views via ajax in the following way:
var view = this.RenderRazorViewToString(partialUrl, viewModel);
return Json(new { success = true, view }, JsonRequestBehavior.AllowGet);
RenderRazorViewToString method:
public string RenderRazorViewToString(string viewName, object model)
{
ViewData.Model = model;
using (var sw = new StringWriter())
{
var viewResult = ViewEngines.Engines.FindPartialView(ControllerContext,
viewName);
var viewContext = new ViewContext(ControllerContext, viewResult.View,
ViewData, TempData, sw);
viewResult.View.Render(viewContext, sw);
viewResult.ViewEngine.ReleaseView(ControllerContext, viewResult.View);
return sw.GetStringBuilder().ToString();
}
}
The following solution is:
getElementById
is called once at the outset. This may or may not suit your purposes.mydiv = document.getElementById("showmehideme");_x000D_
_x000D_
function showhide(d) {_x000D_
d.style.display = (d.style.display !== "none") ? "none" : "block";_x000D_
}
_x000D_
#mydiv { background-color: #ddd; }
_x000D_
<button id="button" onclick="showhide(mydiv)">Show/Hide</button>_x000D_
<div id="showmehideme">_x000D_
This div will show and hide on button click._x000D_
</div>
_x000D_
Using Static
will solve your problem (with some other stuff to initialize old_value
properly:
Private Sub Worksheet_Change(ByVal Target As Range)
Static old_value As String
Dim inited as Boolean 'Used to detect first call and fill old_value
Dim new_value As String
If Not Intersect(cell, Range("cell_of_interest")) Is Nothing Then
new_value = Range("cell_of_interest").Value
If Not inited Then
inited = True
Else
Call DoFoo (old_value, new_value)
End If
old_value = new_value
Next cell
End Sub
In workbook code, force call of Worksheet_change
to fill old_value
:
Private Sub Private Sub Workbook_Open()
SheetX.Worksheet_Change SheetX.Range("cell_of_interest")
End Sub
Note, however, that ANY solution based in VBA variables (including dictionary and another more sophisticate methods) will fail if you stop (Reset) running code (eg. while creating new macros, debugging some code, ...). To avoid such, consider using alternative storage methods (hidden worksheet, for example).