For creating git tag you can simply run git tag <tagname>
command by replacing with the actual name of the tag.
Here is a complete tutorial on the basics of managing git tags: https://www.drupixels.com/blog/git-tags-create-push-remote-checkout-and-much-more
Just use "justify-content-center" in the row's class attribute.
<div class="container">
<div class="row justify-content-center">
<h1>This is a header</h1>
</div>
</div>
For print session data you do not need to use print_r() function every time .
If you use it then it will be non-readable format.Data will be looks very dirty.
But if you use my function all you have to do is to use p()-Funtion and pass data into it. //create new file into application/cms_helper.php and load helper cms into //autoload or on controller
/*Copy Code for p function from here and paste into cms_helper.php in application/helpers folder */
//@parram $data-array,$d-if true then die by default it is false
//@author Your name
function p($data,$d = false){
echo "<pre>";
print_r($data);
echo "</pre>";
if($d == TRUE){
die();
}
}
Just remember to load cms_helper into your project or controller using $this->load->helper('cms'); use bellow code into your controller or model it will works just GREAT.
p($this->session->all_userdata()); // it will apply pre to your sesison data and other array as well
Following script will extract frames every half a second of all videos in folder. (Works on python 3.7)
import cv2
import os
listing = os.listdir(r'D:/Images/AllVideos')
count=1
for vid in listing:
vid = r"D:/Images/AllVideos/"+vid
vidcap = cv2.VideoCapture(vid)
def getFrame(sec):
vidcap.set(cv2.CAP_PROP_POS_MSEC,sec*1000)
hasFrames,image = vidcap.read()
if hasFrames:
cv2.imwrite("D:/Images/Frames/image"+str(count)+".jpg", image) # Save frame as JPG file
return hasFrames
sec = 0
frameRate = 0.5 # Change this number to 1 for each 1 second
success = getFrame(sec)
while success:
count = count + 1
sec = sec + frameRate
sec = round(sec, 2)
success = getFrame(sec)
Setting CSS width to 1% or 100% of an element according to all specs I could find out is related to the parent. Although Blink Rendering Engine (Chrome) and Gecko (Firefox) at the moment of writing seems to handle that 1% or 100% (make a columns shrink or a column to fill available space) well, it is not guaranteed according to all CSS specifications I could find to render it properly.
One option is to replace table with CSS4 flex divs:
https://css-tricks.com/snippets/css/a-guide-to-flexbox/
That works in new browsers i.e. IE11+ see table at the bottom of the article.
I'd say you can, although it doesn't validate and Firefox will re-arrange the code (so what you see in 'View generated source' when using Web Developer may well surprise). I'm no expert, but putting
<form action="someexecpage.php" method="post">
just ahead of the
<tr>
and then using
</tr></form>
at the end of the row certainly gives the functionality (tested in Firefox, Chrome and IE7-9). Working for me, even if the number of validation errors it produced was a new personal best/worst! No problems seen as a consequence, and I have a fairly heavily styled table. I guess you may have a dynamically produced table, as I do, which is why parsing the table rows is a bit non-obvious for us mortals. So basically, open the form at the beginning of the row and close it just after the end of the row.
For a number like your example, I would recommend doing this over substring
:
console.log(parseFloat('12345.00').toFixed(1));
_x000D_
Do note that this will actually round the number, though, which I would imagine is desired but maybe not:
console.log(parseFloat('12345.46').toFixed(1));
_x000D_
I stumble upon this question and it grabbed my interest. The accepted answer is completely correct, but I thought I do provide my findings at JVM byte code level to explain why the OP encounter the ClassCastException
.
I have the code which is pretty much the same as OP's code:
public static <T> T convertInstanceOfObject(Object o) {
try {
return (T) o;
} catch (ClassCastException e) {
return null;
}
}
public static void main(String[] args) {
String k = convertInstanceOfObject(345435.34);
System.out.println(k);
}
and the corresponding byte code is:
public static <T> T convertInstanceOfObject(java.lang.Object);
Code:
0: aload_0
1: areturn
2: astore_1
3: aconst_null
4: areturn
Exception table:
from to target type
0 1 2 Class java/lang/ClassCastException
public static void main(java.lang.String[]);
Code:
0: ldc2_w #3 // double 345435.34d
3: invokestatic #5 // Method java/lang/Double.valueOf:(D)Ljava/lang/Double;
6: invokestatic #6 // Method convertInstanceOfObject:(Ljava/lang/Object;)Ljava/lang/Object;
9: checkcast #7 // class java/lang/String
12: astore_1
13: getstatic #8 // Field java/lang/System.out:Ljava/io/PrintStream;
16: aload_1
17: invokevirtual #9 // Method java/io/PrintStream.println:(Ljava/lang/String;)V
20: return
Notice that checkcast
byte code instruction happens in the main method not the convertInstanceOfObject
and convertInstanceOfObject
method does not have any instruction that can throw ClassCastException
. Because the main method does not catch the ClassCastException
hence when you execute the main method you will get a ClassCastException
and not the expectation of printing null
.
Now I modify the code to the accepted answer:
public static <T> T convertInstanceOfObject(Object o, Class<T> clazz) {
try {
return clazz.cast(o);
} catch (ClassCastException e) {
return null;
}
}
public static void main(String[] args) {
String k = convertInstanceOfObject(345435.34, String.class);
System.out.println(k);
}
The corresponding byte code is:
public static <T> T convertInstanceOfObject(java.lang.Object, java.lang.Class<T>);
Code:
0: aload_1
1: aload_0
2: invokevirtual #2 // Method java/lang/Class.cast:(Ljava/lang/Object;)Ljava/lang/Object;
5: areturn
6: astore_2
7: aconst_null
8: areturn
Exception table:
from to target type
0 5 6 Class java/lang/ClassCastException
public static void main(java.lang.String[]);
Code:
0: ldc2_w #4 // double 345435.34d
3: invokestatic #6 // Method java/lang/Double.valueOf:(D)Ljava/lang/Double;
6: ldc #7 // class java/lang/String
8: invokestatic #8 // Method convertInstanceOfObject:(Ljava/lang/Object;Ljava/lang/Class;)Ljava/lang/Object;
11: checkcast #7 // class java/lang/String
14: astore_1
15: getstatic #9 // Field java/lang/System.out:Ljava/io/PrintStream;
18: aload_1
19: invokevirtual #10 // Method java/io/PrintStream.println:(Ljava/lang/String;)V
22: return
Notice that there is an invokevirtual
instruction in the convertInstanceOfObject
method that calls Class.cast()
method which throws ClassCastException
which will be catch by the catch(ClassCastException e)
bock and return null
; hence, "null" is printed to console without any exception.
To center align text
input[type='text'] { text-align:center;}
To center align the textbox in the container that it sits in, apply text-align:center to the container.
This will do it:
my_hash.each_with_object({}) { |(key, value), hash| hash[key] = value.upcase }
As opposed to inject
the advantage is that you are in no need to return the hash again inside the block.
C# will allow you to have a string split over multiple lines, the term is called verbatim literal
:
string myString = @"this is a
test
to see how long my string
can be
and it can be quite long";
If you are looking for the alternative to & _
from VB, use the +
to join your lines.
Or even more simple if you don't want to use a lot of linq and for some reason don't want to use a for loop.
int i = 0;
foreach(var x in arr)
{
//Do some stuff
i++;
}
At least at STS (SpringSource Tool Suite) groups are numbered starting form 0, so replace string will be
replace: ((TypeName)$0)
The differences are listed in the Javadoc for ListIterator
You can
AsyncTask<CognitoCachingCredentialsProvider, Integer, Void> task = new
AsyncTask<CognitoCachingCredentialsProvider, Integer, Void>() {
@Override
protected Void doInBackground(CognitoCachingCredentialsProvider... params) {
AWSSessionCredentials creds = credentialsProvider.getCredentials();
String id = credentialsProvider.getCachedIdentityId();
credentialsProvider.refresh();
Log.d("wooohoo", String.format("id=%s, token=%s", id, creds.getSessionToken()));
return null;
}
};
task.execute(credentialsProvider);
Check Answer Key 2018
It's worked fine in server
composer install --no-dev
SQL Server allows the following (be careful to use single quotes instead of double)
UPDATE User
SET UserId = 12345
, Name = 'J Doe'
, Location = 'USA'
, Bio='my bio
spans
multiple
lines!'
WHERE UserId = 12345
n = 2
[list(x) for x in mit.divide(n, range(5, 11))]
# [[5, 6, 7], [8, 9, 10]]
[list(x) for x in mit.divide(n, range(5, 12))]
# [[5, 6, 7, 8], [9, 10, 11]]
Install via > pip install more_itertools
.
The above code works well but if you want to navigate from an NSObject
class, where you can not use self.present
:
let storyBoard = UIStoryboard(name:"Main", bundle: nil)
if let conVC = storyBoard.instantiateViewController(withIdentifier: "SoundViewController") as? SoundViewController,
let navController = UIApplication.shared.keyWindow?.rootViewController as? UINavigationController {
navController.pushViewController(conVC, animated: true)
}
Action normally specifies the file/page that the form is submitted to (using the method described in the method paramater (post, get etc.))
An action of #
indicates that the form stays on the same page, simply suffixing the url with a #
. Similar use occurs in anchors. <a href=#">Link</a>
for example, will stay on the same page.
Thus, the form is submitted to the same page, which then processes the data etc.
As previously answered here, String
instances are immutable. StringBuffer
and StringBuilder
are mutable and suitable for such a purpose whether you need to be thread safe or not.
There is however a way to modify a String but I would never recommend it because it is unsafe, unreliable and it can can be considered as cheating : you can use reflection to modify the inner char
array the String object contains. Reflection allows you to access fields and methods that are normally hidden in the current scope (private methods or fields from another class...).
public static void main(String[] args) {
String text = "This is a test";
try {
//String.value is the array of char (char[])
//that contains the text of the String
Field valueField = String.class.getDeclaredField("value");
//String.value is a private variable so it must be set as accessible
//to read and/or to modify its value
valueField.setAccessible(true);
//now we get the array the String instance is actually using
char[] value = (char[])valueField.get(text);
//The 13rd character is the "s" of the word "Test"
value[12]='x';
//We display the string which should be "This is a text"
System.out.println(text);
} catch (NoSuchFieldException | SecurityException e) {
e.printStackTrace();
} catch (IllegalArgumentException e) {
e.printStackTrace();
} catch (IllegalAccessException e) {
e.printStackTrace();
}
}
Eric Baker's comment tipped me off to the core idea that in order for a view to have its size be determined by the content placed within it, then the content placed within it must have an explicit relationship with the containing view in order to drive its height (or width) dynamically. "Add subview" does not create this relationship as you might assume. You have to choose which subview is going to drive the height and/or width of the container... most commonly whatever UI element you have placed in the lower right hand corner of your overall UI. Here's some code and inline comments to illustrate the point.
Note, this may be of particular value to those working with scroll views since it's common to design around a single content view that determines its size (and communicates this to the scroll view) dynamically based on whatever you put in it. Good luck, hope this helps somebody out there.
//
// ViewController.m
// AutoLayoutDynamicVerticalContainerHeight
//
#import "ViewController.h"
@interface ViewController ()
@property (strong, nonatomic) UIView *contentView;
@property (strong, nonatomic) UILabel *myLabel;
@property (strong, nonatomic) UILabel *myOtherLabel;
@end
@implementation ViewController
- (void)viewDidLoad
{
// INVOKE SUPER
[super viewDidLoad];
// INIT ALL REQUIRED UI ELEMENTS
self.contentView = [[UIView alloc] init];
self.myLabel = [[UILabel alloc] init];
self.myOtherLabel = [[UILabel alloc] init];
NSDictionary *viewsDictionary = NSDictionaryOfVariableBindings(_contentView, _myLabel, _myOtherLabel);
// TURN AUTO LAYOUT ON FOR EACH ONE OF THEM
self.contentView.translatesAutoresizingMaskIntoConstraints = NO;
self.myLabel.translatesAutoresizingMaskIntoConstraints = NO;
self.myOtherLabel.translatesAutoresizingMaskIntoConstraints = NO;
// ESTABLISH VIEW HIERARCHY
[self.view addSubview:self.contentView]; // View adds content view
[self.contentView addSubview:self.myLabel]; // Content view adds my label (and all other UI... what's added here drives the container height (and width))
[self.contentView addSubview:self.myOtherLabel];
// LAYOUT
// Layout CONTENT VIEW (Pinned to left, top. Note, it expects to get its vertical height (and horizontal width) dynamically based on whatever is placed within).
// Note, if you don't want horizontal width to be driven by content, just pin left AND right to superview.
[self.view addConstraints:[NSLayoutConstraint constraintsWithVisualFormat:@"H:|[_contentView]" options:0 metrics:0 views:viewsDictionary]]; // Only pinned to left, no horizontal width yet
[self.view addConstraints:[NSLayoutConstraint constraintsWithVisualFormat:@"V:|[_contentView]" options:0 metrics:0 views:viewsDictionary]]; // Only pinned to top, no vertical height yet
/* WHATEVER WE ADD NEXT NEEDS TO EXPLICITLY "PUSH OUT ON" THE CONTAINING CONTENT VIEW SO THAT OUR CONTENT DYNAMICALLY DETERMINES THE SIZE OF THE CONTAINING VIEW */
// ^To me this is what's weird... but okay once you understand...
// Layout MY LABEL (Anchor to upper left with default margin, width and height are dynamic based on text, font, etc (i.e. UILabel has an intrinsicContentSize))
[self.view addConstraints:[NSLayoutConstraint constraintsWithVisualFormat:@"H:|-[_myLabel]" options:0 metrics:0 views:viewsDictionary]];
[self.view addConstraints:[NSLayoutConstraint constraintsWithVisualFormat:@"V:|-[_myLabel]" options:0 metrics:0 views:viewsDictionary]];
// Layout MY OTHER LABEL (Anchored by vertical space to the sibling label that comes before it)
// Note, this is the view that we are choosing to use to drive the height (and width) of our container...
// The LAST "|" character is KEY, it's what drives the WIDTH of contentView (red color)
[self.view addConstraints:[NSLayoutConstraint constraintsWithVisualFormat:@"H:|-[_myOtherLabel]-|" options:0 metrics:0 views:viewsDictionary]];
// Again, the LAST "|" character is KEY, it's what drives the HEIGHT of contentView (red color)
[self.view addConstraints:[NSLayoutConstraint constraintsWithVisualFormat:@"V:[_myLabel]-[_myOtherLabel]-|" options:0 metrics:0 views:viewsDictionary]];
// COLOR VIEWS
self.view.backgroundColor = [UIColor purpleColor];
self.contentView.backgroundColor = [UIColor redColor];
self.myLabel.backgroundColor = [UIColor orangeColor];
self.myOtherLabel.backgroundColor = [UIColor greenColor];
// CONFIGURE VIEWS
// Configure MY LABEL
self.myLabel.text = @"HELLO WORLD\nLine 2\nLine 3, yo";
self.myLabel.numberOfLines = 0; // Let it flow
// Configure MY OTHER LABEL
self.myOtherLabel.text = @"My OTHER label... This\nis the UI element I'm\narbitrarily choosing\nto drive the width and height\nof the container (the red view)";
self.myOtherLabel.numberOfLines = 0;
self.myOtherLabel.font = [UIFont systemFontOfSize:21];
}
@end
I suspect the error is caused by this:
foreach (KeyValuePair<int, int> kvp in rankings)
rankings is a dictionary, which is IEnumerable. By using it in a foreach loop, you're specifying that you want each KeyValuePair from the dictionary in a deferred manner. That is, the next KeyValuePair is not returned until your loop iterates again.
But you're modifying the dictionary inside your loop:
rankings[kvp.Key] = rankings[kvp.Key] + 4;
which isn't allowed...so you get the exception.
You could simply do this
foreach (KeyValuePair<int, int> kvp in rankings.ToArray())
I was having trouble getting redirection to HTTPS to work on a Windows server which runs version 6 of MS Internet Information Services (IIS). I’m more used to working with Apache on a Linux host so I turned to the Internet for help and this was the highest ranking Stack Overflow question when I searched for “php redirect http to https”. However, the selected answer didn’t work for me.
After some trial and error, I discovered that with IIS, $_SERVER['HTTPS']
is
set to off
for non-TLS connections. I thought the following code should
help any other IIS users who come to this question via search engine.
<?php
if (! isset($_SERVER['HTTPS']) or $_SERVER['HTTPS'] == 'off' ) {
$redirect_url = "https://" . $_SERVER['HTTP_HOST'] . $_SERVER['REQUEST_URI'];
header("Location: $redirect_url");
exit();
}
?>
Edit: From another Stack Overflow answer,
a simpler solution is to check if($_SERVER["HTTPS"] != "on")
.
I had similar problem. For me the fix was to import HttpModule before HttpClient Module:
import { HttpModule } from '@angular/http';
import { HttpClientModule } from '@angular/common/http';
.
.
.
imports: [
BrowserModule,
HttpModule,
HttpClientModule
],
UPDATE: 9/24/16 Angular 2.0 Stable
This question gets a lot of traffic still, so, I wanted to update it. With the insanity of changes from Alpha, Beta, and 7 RC candidates, I stopped updating my SO answers until they went stable.
This is the perfect case for using Subjects and ReplaySubjects
I personally prefer to use ReplaySubject(1)
as it allows the last stored value to be passed when new subscribers attach even when late:
let project = new ReplaySubject(1);
//subscribe
project.subscribe(result => console.log('Subscription Streaming:', result));
http.get('path/to/whatever/projects/1234').subscribe(result => {
//push onto subject
project.next(result));
//add delayed subscription AFTER loaded
setTimeout(()=> project.subscribe(result => console.log('Delayed Stream:', result)), 3000);
});
//Output
//Subscription Streaming: 1234
//*After load and delay*
//Delayed Stream: 1234
So even if I attach late or need to load later I can always get the latest call and not worry about missing the callback.
This also lets you use the same stream to push down onto:
project.next(5678);
//output
//Subscription Streaming: 5678
But what if you are 100% sure, that you only need to do the call once? Leaving open subjects and observables isn't good but there's always that "What If?"
That's where AsyncSubject comes in.
let project = new AsyncSubject();
//subscribe
project.subscribe(result => console.log('Subscription Streaming:', result),
err => console.log(err),
() => console.log('Completed'));
http.get('path/to/whatever/projects/1234').subscribe(result => {
//push onto subject and complete
project.next(result));
project.complete();
//add a subscription even though completed
setTimeout(() => project.subscribe(project => console.log('Delayed Sub:', project)), 2000);
});
//Output
//Subscription Streaming: 1234
//Completed
//*After delay and completed*
//Delayed Sub: 1234
Awesome! Even though we closed the subject it still replied with the last thing it loaded.
Another thing is how we subscribed to that http call and handled the response. Map is great to process the response.
public call = http.get(whatever).map(res => res.json())
But what if we needed to nest those calls? Yes you could use subjects with a special function:
getThing() {
resultSubject = new ReplaySubject(1);
http.get('path').subscribe(result1 => {
http.get('other/path/' + result1).get.subscribe(response2 => {
http.get('another/' + response2).subscribe(res3 => resultSubject.next(res3))
})
})
return resultSubject;
}
var myThing = getThing();
But that's a lot and means you need a function to do it. Enter FlatMap:
var myThing = http.get('path').flatMap(result1 =>
http.get('other/' + result1).flatMap(response2 =>
http.get('another/' + response2)));
Sweet, the var
is an observable that gets the data from the final http call.
OK thats great but I want an angular2 service!
I got you:
import { Injectable } from '@angular/core';
import { Http, Response } from '@angular/http';
import { ReplaySubject } from 'rxjs';
@Injectable()
export class ProjectService {
public activeProject:ReplaySubject<any> = new ReplaySubject(1);
constructor(private http: Http) {}
//load the project
public load(projectId) {
console.log('Loading Project:' + projectId, Date.now());
this.http.get('/projects/' + projectId).subscribe(res => this.activeProject.next(res));
return this.activeProject;
}
}
//component
@Component({
selector: 'nav',
template: `<div>{{project?.name}}<a (click)="load('1234')">Load 1234</a></div>`
})
export class navComponent implements OnInit {
public project:any;
constructor(private projectService:ProjectService) {}
ngOnInit() {
this.projectService.activeProject.subscribe(active => this.project = active);
}
public load(projectId:string) {
this.projectService.load(projectId);
}
}
I'm a big fan of observers and observables so I hope this update helps!
Original Answer
I think this is a use case of using a Observable Subject or in Angular2
the EventEmitter
.
In your service you create a EventEmitter
that allows you to push values onto it. In Alpha 45 you have to convert it with toRx()
, but I know they were working to get rid of that, so in Alpha 46 you may be able to simply return the EvenEmitter
.
class EventService {
_emitter: EventEmitter = new EventEmitter();
rxEmitter: any;
constructor() {
this.rxEmitter = this._emitter.toRx();
}
doSomething(data){
this.rxEmitter.next(data);
}
}
This way has the single EventEmitter
that your different service functions can now push onto.
If you wanted to return an observable directly from a call you could do something like this:
myHttpCall(path) {
return Observable.create(observer => {
http.get(path).map(res => res.json()).subscribe((result) => {
//do something with result.
var newResultArray = mySpecialArrayFunction(result);
observer.next(newResultArray);
//call complete if you want to close this stream (like a promise)
observer.complete();
});
});
}
That would allow you do this in the component:
peopleService.myHttpCall('path').subscribe(people => this.people = people);
And mess with the results from the call in your service.
I like creating the EventEmitter
stream on its own in case I need to get access to it from other components, but I could see both ways working...
Here's a plunker that shows a basic service with an event emitter: Plunkr
Use cursor.lastrowid
to get the last row ID inserted on the cursor object, or connection.insert_id()
to get the ID from the last insert on that connection.
I hope following code will give you more information.
select * from information_schema.triggers where
information_schema.triggers.trigger_schema like '%your_db_name%'
This will give you total 22 Columns in MySQL version: 5.5.27 and Above
TRIGGER_CATALOG
TRIGGER_SCHEMA
TRIGGER_NAME
EVENT_MANIPULATION
EVENT_OBJECT_CATALOG
EVENT_OBJECT_SCHEMA
EVENT_OBJECT_TABLE
ACTION_ORDER
ACTION_CONDITION
ACTION_STATEMENT
ACTION_ORIENTATION
ACTION_TIMING
ACTION_REFERENCE_OLD_TABLE
ACTION_REFERENCE_NEW_TABLE
ACTION_REFERENCE_OLD_ROW
ACTION_REFERENCE_NEW_ROW
CREATED
SQL_MODE
DEFINER
CHARACTER_SET_CLIENT
COLLATION_CONNECTION
DATABASE_COLLATION
You don't specify what kind of list, but the generic List can use either the RemoveAt(index)
method, or the Remove(obj)
method:
// Remove(obj)
var item = resultList.Single(x => x.Id == 2);
resultList.Remove(item);
// RemoveAt(index)
resultList.RemoveAt(1);
I cannot comment because of the 50pts threshhold, but I don't think that the answer provided in https://stackoverflow.com/a/537344/1341220 is correct. What you are actually describing is how you insert server certificates into the systems default truststore:
$JAVA_HOME/jre/lib/security/cacerts, password: changeit)
This works, indeed, but it means that you did not really specify a trust store local to your project, but rather accepted the certificate universially in your system.
You actually never use your own truststore that you defined here:
System.setProperty("javax.net.ssl.trustStore", "myTrustStore");
System.setProperty("javax.net.ssl.trustStorePassword", "changeit");
This error can also arise from a JSON AJAX call to a PHP script that has an error in its code. Servers are often set up to return PHP error information formatted with html markup. This response is interpreted as invalid JSON, resulting in the "unexpected token <" AJAX error.
To view the PHP error using Chrome, go to the Network panel in the web inspector, click the PHP file listed on the left side, and click on the Response tab.
Yes, you can reference any image from the image
element. And you can use data URIs to make the SVG self-contained. An example:
<svg xmlns="http://www.w3.org/2000/svg"
xmlns:xlink="http://www.w3.org/1999/xlink">
...
<image
width="100" height="100"
xlink:href="data:image/png;base64,IMAGE_DATA"
/>
...
</svg>
The svg
element attribute xmlns:xlink
declares xlink
as a namespace prefix and says where the definition is. That then allows the SVG reader to know what xlink:href
means.
The IMAGE_DATA
is where you'd add the image data as base64-encoded text. Vector graphics editors that support SVG usually have an option for saving with images embedded. Otherwise there are plenty of tools around for encoding a byte stream to and from base64.
Here's a full example from the SVG testsuite.
If you want to use Angular with an unsupported TypeScript version, add this to your tsconfig.json
to ignore the warning:
"angularCompilerOptions": {
"disableTypeScriptVersionCheck": true,
},
You should also make sure that the ports WAMP uses aren't already in use.
That can be done by typing the following command into the command prompt:
netstat –o
There's a Py library that has a module that facilitates access to Json-like dictionary key-values as attributes: https://github.com/asuiu/pyxtension You can use it as:
j = Json('{"lat":444, "lon":555}')
j.lat + ' ' + j.lon
The rules in your .gitignore
file only apply to untracked files. Since the files under that directory were already committed in your repository, you have to unstage them, create a commit, and push that to GitHub:
git rm -r --cached some-directory
git commit -m 'Remove the now ignored directory "some-directory"'
git push origin master
You can't delete the file from your history without rewriting the history of your repository - you shouldn't do this if anyone else is working with your repository, or you're using it from multiple computers. If you still want to do that, you can use git filter-branch
to rewrite the history - there is a helpful guide to that here.
Additionally, note the output from git rm -r --cached some-directory
will be something like:
rm 'some-directory/product/cache/1/small_image/130x130/small_image.jpg'
rm 'some-directory/product/cache/1/small_image/135x/small_image.jpg'
rm 'some-directory/.htaccess'
rm 'some-directory/logo.jpg'
The rm
is feedback from git about the repository; the files are still in the working directory.
I use this query:
var collection = "countries"; var field = "country";
db[collection].distinct(field).forEach(function(value){print(field + ", " + value + ": " + db.hosts.count({[field]: value}))})
Output:
countries, England: 3536
countries, France: 238
countries, Australia: 1044
countries, Spain: 16
This query first distinct all the values, and then count for each one of them the number of occurrences.
If you want to first take mean on the combination of ['cluster', 'org']
and then take mean on cluster
groups, you can use:
In [59]: (df.groupby(['cluster', 'org'], as_index=False).mean()
.groupby('cluster')['time'].mean())
Out[59]:
cluster
1 15
2 54
3 6
Name: time, dtype: int64
If you want the mean of cluster
groups only, then you can use:
In [58]: df.groupby(['cluster']).mean()
Out[58]:
time
cluster
1 12.333333
2 54.000000
3 6.000000
You can also use groupby
on ['cluster', 'org']
and then use mean()
:
In [57]: df.groupby(['cluster', 'org']).mean()
Out[57]:
time
cluster org
1 a 438886
c 23
2 d 9874
h 34
3 w 6
You can use SimpleDateFormat
SimpleDateFormat sdf = new SimpleDateFormat("dd/MM/yyyy");
Date d = sdf.parse("21/12/2012");
But I don't know whether it should be considered more right than to use Calendar ...
If you just want to open up the webpage, I think less is more in this case:
import java.awt.Desktop;
import java.net.URI; //Note this is URI, not URL
class BrowseURL{
public static void main(String args[]) throws Exception{
// Create Desktop object
Desktop d=Desktop.getDesktop();
// Browse a URL, say google.com
d.browse(new URI("http://google.com"));
}
}
}
The following will truncate the log.
USE [yourdbname]
GO
-- TRUNCATE TRANSACTION LOG --
DBCC SHRINKFILE(yourdbname_log, 1)
BACKUP LOG yourdbname WITH TRUNCATE_ONLY
DBCC SHRINKFILE(yourdbname_log, 1)
GO
-- CHECK DATABASE HEALTH --
ALTER FUNCTION [dbo].[checker]() RETURNS int AS BEGIN RETURN 0 END
GO
values_of_objArray = [
{ id: 3432, name: "Recent" },
{ id: 3442, name: "Most Popular" },
{ id: 3352, name: "Rating" }
];
private ValueId : number = 0 // this will be used for multi access like
// update, deleting the obj with id.
private selectedObj : any;
private selectedValueObj(id: any) {
this.ValueId = (id.srcElement || id.target).value;
for (let i = 0; i < this.values_of_objArray.length; i++) {
if (this.values_of_objArray[i].id == this.ValueId) {
this.selectedObj = this.values_of_objArray[i];
}
}
}
Now play with this.selectedObj
which has the selected obj from the view.
HTML:
<select name="values_of_obj" class="form-control" [(ngModel)]="ValueId"
(change)="selectedValueObj($event)" required>
<option *ngFor="let Value of values_of_objArray"
[value]="Value.id">{{Value.name}}</option>
</select>
The first four functions you list will work on vectors as well, with the exception that lower_wick needs to be adapted. Something like this,
def lower_wick_vec(o, l, c):
min_oc = numpy.where(o > c, c, o)
return min_oc - l
where o, l and c are vectors. You could do it this way instead which just takes the df as input and avoid using numpy, although it will be much slower:
def lower_wick_df(df):
min_oc = df[['Open', 'Close']].min(axis=1)
return min_oc - l
The other three will work on columns or vectors just as they are. Then you can finish off with
def is_hammer(df):
lw = lower_wick_at_least_twice_real_body(df["Open"], df["Low"], df["Close"])
cl = closed_in_top_half_of_range(df["High"], df["Low"], df["Close"])
return cl & lw
Bit operators can perform set logic on boolean vectors, &
for and
, |
for or
etc. This is enough to completely vectorize the sample calculations you gave and should be relatively fast. You could probably speed up even more by temporarily working with the numpy arrays underlying the data while performing these calculations.
For the second part, I would recommend introducing a column indicating the pattern for each row and writing a family of functions which deal with each pattern. Then groupby the pattern and apply the appropriate function to each group.
Looks like javax.faces.SEPARATOR_CHAR must not be equal to _
This is what solved my problem
Add the following line to WebApiConfig.cs
config.Formatters.XmlFormatter.SupportedMediaTypes.Add(new System.Net.Http.Headers.MediaTypeHeaderValue("multipart/form-data"));
I was facing a similar issue and below line fixed the issue for me.
<dependency>
<groupId>org.slf4j</groupId>
<artifactId>slf4j-api</artifactId>
</dependency>
Edit: I realized that I was using spring boot and the version of the dependency was getting pulled from spring-boot-starter-parent.
You may also try mongoosejs's lean() :
UserModel.find().lean().exec(function (err, users) {
return res.end(JSON.stringify(users));
}
You can also use this old trick for converting complex if/then/else blocks into a slightly cleaner switch statement:
<div [ngSwitch]="true">
<button (click)="foo=(++foo%3)+1">Switch!</button>
<div *ngSwitchCase="foo === 1">one</div>
<div *ngSwitchCase="foo === 2">two</div>
<div *ngSwitchCase="foo === 3">three</div>
</div>
from manual:
: [arguments] No effect; the command does nothing beyond expanding arguments and performing any specified redirections. A zero exit code is returned.
As this returns always zero therefore is is similar to be used as true
Check out this answer: What Is the Purpose of the `:' (colon) GNU Bash Builtin?
From the spec:
All characters may be placed within the quotation marks except for the characters that must be escaped: quotation mark (U+0022), reverse solidus [backslash] (U+005C), and the control characters U+0000 to U+001F
Just because e.g. Bell (U+0007) doesn't have a single-character escape code does not mean that you don't need to escape it. Use the Unicode escape sequence \u0007
.
Just use x["error_msg"]
. If the property doesn't exist, it returns null
.
Go to the folder where's your project root and:
xcodebuild -project projectname -activetarget -activeconfiguration archive
As David and Remou pointed out, vbCrLf
if you want a carriage-return-linefeed combination. Otherwise, Chr(13)
and Chr(10)
(although some VB-derivatives have vbCr
and vbLf
; VBScript may well have those, worth checking before using Chr
).
You can also create a database named 'mydatabasename' and then try restoring it again.
Create a new database using MySQL CLI:
mysql -u[username] -p[password]
CREATE DATABASE mydatabasename;
Then try to restore your database:
mysql -u[username] -p[password] mydatabase<mydatabase.sql;
It might be possible that you have not installed the code in your system. So, please install it first. the command is here -
sudo snap install --classic code
Details are available is here
Another approach (based on docker-postgresql-workflow)
Local running database (not in docker, but same approach would work) to export:
pg_dump -F c -h localhost mydb -U postgres export.dmp
Container database to import:
docker run -d -v /local/path/to/postgres:/var/lib/postgresql/data postgres #ex runs container as `CONTAINERNAME` #find via `docker ps`
docker run -it --link CONTAINERNAME:postgres --volume $PWD/:/tmp/ postgres bash -c 'exec pg_restore -h postgres -U postgres -d mydb -F c /tmp/sonar.dmp'
Move the data retrieval at the top of the script, and after that use:
<title>Ultan.me - <?php echo htmlspecialchars($title, ENT_QUOTES, 'UTF-8'); ?></title>
All of the following examples use
var str = "Hello, playground"
startIndex
and endIndex
startIndex
is the index of the first characterendIndex
is the index after the last character.Example
// character
str[str.startIndex] // H
str[str.endIndex] // error: after last character
// range
let range = str.startIndex..<str.endIndex
str[range] // "Hello, playground"
With Swift 4's one-sided ranges, the range can be simplified to one of the following forms.
let range = str.startIndex...
let range = ..<str.endIndex
I will use the full form in the follow examples for the sake of clarity, but for the sake of readability, you will probably want to use the one-sided ranges in your code.
after
As in: index(after: String.Index)
after
refers to the index of the character directly after the given index.Examples
// character
let index = str.index(after: str.startIndex)
str[index] // "e"
// range
let range = str.index(after: str.startIndex)..<str.endIndex
str[range] // "ello, playground"
before
As in: index(before: String.Index)
before
refers to the index of the character directly before the given index.Examples
// character
let index = str.index(before: str.endIndex)
str[index] // d
// range
let range = str.startIndex..<str.index(before: str.endIndex)
str[range] // Hello, playgroun
offsetBy
As in: index(String.Index, offsetBy: String.IndexDistance)
offsetBy
value can be positive or negative and starts from the given index. Although it is of the type String.IndexDistance
, you can give it an Int
.Examples
// character
let index = str.index(str.startIndex, offsetBy: 7)
str[index] // p
// range
let start = str.index(str.startIndex, offsetBy: 7)
let end = str.index(str.endIndex, offsetBy: -6)
let range = start..<end
str[range] // play
limitedBy
As in: index(String.Index, offsetBy: String.IndexDistance, limitedBy: String.Index)
limitedBy
is useful for making sure that the offset does not cause the index to go out of bounds. It is a bounding index. Since it is possible for the offset to exceed the limit, this method returns an Optional. It returns nil
if the index is out of bounds.Example
// character
if let index = str.index(str.startIndex, offsetBy: 7, limitedBy: str.endIndex) {
str[index] // p
}
If the offset had been 77
instead of 7
, then the if
statement would have been skipped.
It would be much easier to use an Int
index for Strings. The reason that you have to create a new String.Index
for every String is that Characters in Swift are not all the same length under the hood. A single Swift Character might be composed of one, two, or even more Unicode code points. Thus each unique String must calculate the indexes of its Characters.
It is possibly to hide this complexity behind an Int index extension, but I am reluctant to do so. It is good to be reminded of what is actually happening.
DECLARE @yourBirthDate DATETIME = '1987-05-25'
SELECT YEAR(DATEADD(DAY, DATEDIFF(DAY, @yourBirthDate, GETDATE()), CAST('0001-01-01' AS DATETIME2))) - 1
Calculate Leave working days in a table column as a default value--updated
If you are using SQL here is the query which can help you: http://gallery.technet.microsoft.com/Calculate...
I know this questions has been answered, however the reason this is happening to you, was probably because you did not add your username to the docker group.
Here are the steps to do it:
Add the docker group if it doesn't already exist:
sudo groupadd docker
Add the connected user ${USER}
to the docker group. Change the user name to match your preferred user:
sudo gpasswd -a ${USER} docker
Restart the Docker daemon:
sudo service docker restart
If you are on Ubuntu 14.04-15.10* use docker.io instead:
sudo service docker.io restart
(If you are on Ubuntu 16.04 the service is named "docker" simply)
Either do a newgrp
docker or log out/in to activate the changes to groups.
An easy way to print the sorted contents of the dictionary, in Python 3:
>>> dict_example = {'c': 1, 'b': 2, 'a': 3}
>>> for key, value in sorted(dict_example.items()):
... print("{} : {}".format(key, value))
...
a : 3
b : 2
c : 1
The expression dict_example.items()
returns tuples, which can then be sorted by sorted()
:
>>> dict_example.items()
dict_items([('c', 1), ('b', 2), ('a', 3)])
>>> sorted(dict_example.items())
[('a', 3), ('b', 2), ('c', 1)]
Below is an example to pretty print the sorted contents of a Python dictionary's values.
for key, value in sorted(dict_example.items(), key=lambda d_values: d_values[1]):
print("{} : {}".format(key, value))
I feel a little uneasy to add more answers here. Decided to go for the most readable and minimal pure ruby approach, disregarding the nice benchmark from @ulysse-bn. While :class
mode is a copy of @user3869936, the :method
mode I don't see in any other answer here.
def snake_to_camel_case(str, mode: :class)
case mode
when :class
str.split('_').map(&:capitalize).join
when :method
str.split('_').inject { |m, p| m + p.capitalize }
else
raise "unknown mode #{mode.inspect}"
end
end
Result is:
[28] pry(main)> snake_to_camel_case("asd_dsa_fds", mode: :class)
=> "AsdDsaFds"
[29] pry(main)> snake_to_camel_case("asd_dsa_fds", mode: :method)
=> "asdDsaFds"
Alternatively you could update brew
by installing it again. (Think I did this as El Capitan changed something)
Note: this is a heavy handed approach that will remove all applications installed via brew!
Try to install brew a fresh and it will tell how to uninstall.
At original time of writing to uninstall:
ruby -e "$(curl -fsSL https://raw.githubusercontent.com/Homebrew/install/master/uninstall)"
Edit: As of 2020 to uninstall:
/bin/bash -c "$(curl -fsSL https://raw.githubusercontent.com/Homebrew/install/master/uninstall.sh)"
The main distinction between the two methods is:
loc
gets rows (and/or columns) with particular labels.
iloc
gets rows (and/or columns) at integer locations.
To demonstrate, consider a series s
of characters with a non-monotonic integer index:
>>> s = pd.Series(list("abcdef"), index=[49, 48, 47, 0, 1, 2])
49 a
48 b
47 c
0 d
1 e
2 f
>>> s.loc[0] # value at index label 0
'd'
>>> s.iloc[0] # value at index location 0
'a'
>>> s.loc[0:1] # rows at index labels between 0 and 1 (inclusive)
0 d
1 e
>>> s.iloc[0:1] # rows at index location between 0 and 1 (exclusive)
49 a
Here are some of the differences/similarities between s.loc
and s.iloc
when passed various objects:
<object> | description | s.loc[<object>] |
s.iloc[<object>] |
---|---|---|---|
0 |
single item | Value at index label 0 (the string 'd' ) |
Value at index location 0 (the string 'a' ) |
0:1 |
slice | Two rows (labels 0 and 1 ) |
One row (first row at location 0) |
1:47 |
slice with out-of-bounds end | Zero rows (empty Series) | Five rows (location 1 onwards) |
1:47:-1 |
slice with negative step | Four rows (labels 1 back to 47 ) |
Zero rows (empty Series) |
[2, 0] |
integer list | Two rows with given labels | Two rows with given locations |
s > 'e' |
Bool series (indicating which values have the property) | One row (containing 'f' ) |
NotImplementedError |
(s>'e').values |
Bool array | One row (containing 'f' ) |
Same as loc |
999 |
int object not in index | KeyError |
IndexError (out of bounds) |
-1 |
int object not in index | KeyError |
Returns last value in s |
lambda x: x.index[3] |
callable applied to series (here returning 3rd item in index) | s.loc[s.index[3]] |
s.iloc[s.index[3]] |
loc
's label-querying capabilities extend well-beyond integer indexes and it's worth highlighting a couple of additional examples.
Here's a Series where the index contains string objects:
>>> s2 = pd.Series(s.index, index=s.values)
>>> s2
a 49
b 48
c 47
d 0
e 1
f 2
Since loc
is label-based, it can fetch the first value in the Series using s2.loc['a']
. It can also slice with non-integer objects:
>>> s2.loc['c':'e'] # all rows lying between 'c' and 'e' (inclusive)
c 47
d 0
e 1
For DateTime indexes, we don't need to pass the exact date/time to fetch by label. For example:
>>> s3 = pd.Series(list('abcde'), pd.date_range('now', periods=5, freq='M'))
>>> s3
2021-01-31 16:41:31.879768 a
2021-02-28 16:41:31.879768 b
2021-03-31 16:41:31.879768 c
2021-04-30 16:41:31.879768 d
2021-05-31 16:41:31.879768 e
Then to fetch the row(s) for March/April 2021 we only need:
>>> s3.loc['2021-03':'2021-04']
2021-03-31 17:04:30.742316 c
2021-04-30 17:04:30.742316 d
loc
and iloc
work the same way with DataFrames as they do with Series. It's useful to note that both methods can address columns and rows together.
When given a tuple, the first element is used to index the rows and, if it exists, the second element is used to index the columns.
Consider the DataFrame defined below:
>>> import numpy as np
>>> df = pd.DataFrame(np.arange(25).reshape(5, 5),
index=list('abcde'),
columns=['x','y','z', 8, 9])
>>> df
x y z 8 9
a 0 1 2 3 4
b 5 6 7 8 9
c 10 11 12 13 14
d 15 16 17 18 19
e 20 21 22 23 24
Then for example:
>>> df.loc['c': , :'z'] # rows 'c' and onwards AND columns up to 'z'
x y z
c 10 11 12
d 15 16 17
e 20 21 22
>>> df.iloc[:, 3] # all rows, but only the column at index location 3
a 3
b 8
c 13
d 18
e 23
Sometimes we want to mix label and positional indexing methods for the rows and columns, somehow combining the capabilities of loc
and iloc
.
For example, consider the following DataFrame. How best to slice the rows up to and including 'c' and take the first four columns?
>>> import numpy as np
>>> df = pd.DataFrame(np.arange(25).reshape(5, 5),
index=list('abcde'),
columns=['x','y','z', 8, 9])
>>> df
x y z 8 9
a 0 1 2 3 4
b 5 6 7 8 9
c 10 11 12 13 14
d 15 16 17 18 19
e 20 21 22 23 24
We can achieve this result using iloc
and the help of another method:
>>> df.iloc[:df.index.get_loc('c') + 1, :4]
x y z 8
a 0 1 2 3
b 5 6 7 8
c 10 11 12 13
get_loc()
is an index method meaning "get the position of the label in this index". Note that since slicing with iloc
is exclusive of its endpoint, we must add 1 to this value if we want row 'c' as well.
After a bit of googling, it seems that there never was a separate redistributable for Visual C++ 2003 (7.1). At least that is what a post on the microsoft forum says.
You may however be able to extract the runtime DLLs from the VC 7.1 DST timezone update.
strComputer = "."
Set objWMIService = GetObject("winmgmts:\\" & strComputer & "\root\cimv2:Win32_Process")
objWMIService.Create "notepad.exe", null, null, intProcessID
Set objWMIService = GetObject("winmgmts:\\" & strComputer & "\root\cimv2")
Set colMonitoredProcesses = objWMIService.ExecNotificationQuery _
("Select * From __InstanceDeletionEvent Within 1 Where TargetInstance ISA 'Win32_Process'")
Do Until i = 1
Set objLatestProcess = colMonitoredProcesses.NextEvent
If objLatestProcess.TargetInstance.ProcessID = intProcessID Then
i = 1
End If
Loop
Wscript.Echo "Notepad has been terminated."
What you are asking is pretty straight forward
execute query against your db to get resultset or use API to get the resultset
loop through the resultset or simply the result using php
In each iteration simply format the output as an element
the following refernce should help
Getting Datafrom MySQL database
hope this helps :)
Use:
subA.tick_params(labelsize=6)
Thread dumps are javacore show snapshot of threads running in JVM, it is useful to debug hang issues, it will provide info about java level dead locks and also IBm version of javacores provides much more useful information, such as heap usage, CPU usage of each thread and overall heap usage along with number of classes laded by the JVM.
Heapdumps, provides information about Java heap usage by an JVM, which can be used to debug memory leaks. Heapdumps are generated by IBM JVMs when a JVM is runs into outofmemoryerror, Heapdumps are only for heap leaks in java, native out of memory error may result system dumps usually with an "GPF" General protection Fault.
This works to me:
click in Sdk manager in SDK Tools and:
Unistal and install the Android Emulator:
Hope to help!
select
relname as table
from
pg_stat_user_tables
where schemaname = 'public'
select
tablename as table
from
pg_tables
where schemaname = 'public'
This may also tangentially help, to understand if a logging request (from the code) at a certain level will result in it actually being logged given the effective logging level that a deployment is configured with. Decide what effective level you want to configure you deployment with from the other Answers here, and then refer to this to see if a particular logging request from your code will actually be logged then...
For examples:
from logback documentation:
In a more graphic way, here is how the selection rule works. In the following table, the vertical header shows the level of the logging request, designated by p, while the horizontal header shows effective level of the logger, designated by q. The intersection of the rows (level request) and columns (effective level) is the boolean resulting from the basic selection rule.
So a code line that requests logging will only actually get logged if the effective logging level of its deployment is less than or equal to that code line's requested level of severity.
Use the Array#join
method (the argument to join
is what to insert between the strings - in this case a space):
@arr.join(" ")
There's an open RFE for this with Oracle. From the comments from the Oracle employee it seems they don't understand the issue and won't fix. It's one of these things that is dead simple to support in the JDK (without breaking backwards compatibility) so it is kind of a shame that the RFE gets misunderstood.
As pointed out you need to implement your own ThreadFactory. If you don't want to pull in Guava or Apache Commons just for this purpose I provide here a ThreadFactory
implementation that you can use. It is exactly similar to what you get from the JDK except for the ability to set the thread name prefix to something else than "pool".
package org.demo.concurrency;
import java.util.concurrent.ThreadFactory;
import java.util.concurrent.atomic.AtomicInteger;
/**
* ThreadFactory with the ability to set the thread name prefix.
* This class is exactly similar to
* {@link java.util.concurrent.Executors#defaultThreadFactory()}
* from JDK8, except for the thread naming feature.
*
* <p>
* The factory creates threads that have names on the form
* <i>prefix-N-thread-M</i>, where <i>prefix</i>
* is a string provided in the constructor, <i>N</i> is the sequence number of
* this factory, and <i>M</i> is the sequence number of the thread created
* by this factory.
*/
public class ThreadFactoryWithNamePrefix implements ThreadFactory {
// Note: The source code for this class was based entirely on
// Executors.DefaultThreadFactory class from the JDK8 source.
// The only change made is the ability to configure the thread
// name prefix.
private static final AtomicInteger poolNumber = new AtomicInteger(1);
private final ThreadGroup group;
private final AtomicInteger threadNumber = new AtomicInteger(1);
private final String namePrefix;
/**
* Creates a new ThreadFactory where threads are created with a name prefix
* of <code>prefix</code>.
*
* @param prefix Thread name prefix. Never use a value of "pool" as in that
* case you might as well have used
* {@link java.util.concurrent.Executors#defaultThreadFactory()}.
*/
public ThreadFactoryWithNamePrefix(String prefix) {
SecurityManager s = System.getSecurityManager();
group = (s != null) ? s.getThreadGroup()
: Thread.currentThread().getThreadGroup();
namePrefix = prefix + "-"
+ poolNumber.getAndIncrement()
+ "-thread-";
}
@Override
public Thread newThread(Runnable r) {
Thread t = new Thread(group, r,
namePrefix + threadNumber.getAndIncrement(),
0);
if (t.isDaemon()) {
t.setDaemon(false);
}
if (t.getPriority() != Thread.NORM_PRIORITY) {
t.setPriority(Thread.NORM_PRIORITY);
}
return t;
}
}
When you want to use it you simply take advantage of the fact that all Executors
methods allow you to provide your own ThreadFactory
.
This
Executors.newSingleThreadExecutor();
will give an ExecutorService where threads are named pool-N-thread-M
but by using
Executors.newSingleThreadExecutor(new ThreadFactoryWithNamePrefix("primecalc"));
you'll get an ExecutorService where threads are named primecalc-N-thread-M
. Voila!
I found this solution that is simple and worked for me:
<form ...>
<input ...>
<button ... onclick="this.disabled=true;this.value='Submitting...'; this.form.submit();">
</form>
This solution was found in: Original solution
Please note that 4.0 is not sufficient since ListValuedMap, was introduced in version 4.1.
You need to use this maven repository link for version 4.1. Replicated below for convenience
<!-- https://mvnrepository.com/artifact/org.apache.commons/commons-collections4 -->
<dependency>
<groupId>org.apache.commons</groupId>
<artifactId>commons-collections4</artifactId>
<version>4.1</version>
</dependency>
godbolt is a very useful tool, they list only has C++ compilers but you can use -x c
flag in order to get it treat the code as C. It will then generate an assembly listing for your code side by side and you can use the Colourise
option to generate colored bars to visually indicate which source code maps to the generated assembly. For example the following code:
#include <stdio.h>
void func()
{
printf( "hello world\n" ) ;
}
using the following command line:
-x c -std=c99 -O3
and Colourise
would generate the following:
If you just need to know if there's a fix, then check for the last known location provided by the GPS receiver and check the .getTime() value to know how old is that. If it's recent enough (like... a few seconds) you have a fix.
LocationManager lm = (LocationManager)context.getSystemService(LOCATION_SERVICE);
Location loc = lm.getLastKnownLocation(LocationManager.GPS_PROVIDER);
// Get the time of the last fix
long lastFixTimeMillis = loc.getTime();
... and finally compare that to current date time (In UTC!). If it's recent enough you have a fix.
I do that in my app and so far so good.
Another best way to find Java folder path is to use alternatives
command in Fedora Linux (I know its for Ubuntu but I hit this post from google just by its headline). Just want to share incase people like me looking for answers for fedora flavour.
To display all information regarding java
alternatives --display java
Using Backtick
Backticks are commonly used for multi-line strings or when you want to interpolate an expression within your string
let title = 'John';_x000D_
let address = 'address';_x000D_
let address2 = 'address2222';_x000D_
let address3 = 'address33333';_x000D_
let address4 = 'address44444';_x000D_
document.getElementById("address_box").innerText = `${title} _x000D_
${address}_x000D_
${address2}_x000D_
${address3} _x000D_
${address4}`;
_x000D_
<div id="address_box">_x000D_
</div>
_x000D_
Without using datetime object in python.
# A date has day 'd', month 'm' and year 'y'
class Date:
def __init__(self, d, m, y):
self.d = d
self.m = m
self.y = y
# To store number of days in all months from
# January to Dec.
monthDays = [31, 28, 31, 30, 31, 30,
31, 31, 30, 31, 30, 31 ]
# This function counts number of leap years
# before the given date
def countLeapYears(d):
years = d.y
# Check if the current year needs to be considered
# for the count of leap years or not
if (d.m <= 2) :
years-= 1
# An year is a leap year if it is a multiple of 4,
# multiple of 400 and not a multiple of 100.
return int(years / 4 - years / 100 + years / 400 )
# This function returns number of days between two
# given dates
def getDifference(dt1, dt2) :
# COUNT TOTAL NUMBER OF DAYS BEFORE FIRST DATE 'dt1'
# initialize count using years and day
n1 = dt1.y * 365 + dt1.d
# Add days for months in given date
for i in range(0, dt1.m - 1) :
n1 += monthDays[i]
# Since every leap year is of 366 days,
# Add a day for every leap year
n1 += countLeapYears(dt1)
# SIMILARLY, COUNT TOTAL NUMBER OF DAYS BEFORE 'dt2'
n2 = dt2.y * 365 + dt2.d
for i in range(0, dt2.m - 1) :
n2 += monthDays[i]
n2 += countLeapYears(dt2)
# return difference between two counts
return (n2 - n1)
# Driver program
dt1 = Date(31, 12, 2018 )
dt2 = Date(1, 1, 2019 )
print(getDifference(dt1, dt2), "days")
ArrayList<String> alphabetList = new ArrayList<String>();
alphabetList.add("A"); // 0 index
alphabetList.add("B"); // 1 index
alphabetList.add("C"); // 2 index
alphabetList.add("D"); // 3 index
alphabetList.add("E"); // 4 index
alphabetList.add("F"); // 5 index
alphabetList.add("G"); // 6 index
alphabetList.add("H"); // 7 index
alphabetList.add("I"); // 8 index
int position = -1;
position = alphabetList.indexOf("H");
if (position == -1) {
Log.e(TAG, "Object not found in List");
} else {
Log.i(TAG, "" + position);
}
Output: List Index : 7
If you pass H it will return 7, if you pass J it will return -1 as we defined default value to -1.
Done
INSERT INTO Table2 SELECT DISTINCT ID,Data = STUFF((SELECT ', ' + AA.Data FROM Table1 AS AA WHERE AA.ID = BB.ID FOR XML PATH(''), TYPE).value('.','nvarchar(max)'), 1, 2, '') FROM Table1 AS BB
GROUP BY ID,Data
ORDER BY ID;
The existing answers already cover the "how", but I just wanted to elaborate on the "what" and "why" for others who might be wondering.
What a compiler (gcc) does: The term "compile" is a bit of an overloaded term because it is used at a high-level to mean "convert source code to a program", but more technically means to "convert source code to object code". A compiler like gcc actually performs two related, but arguably distinct functions to turn your source code into a program: compiling (as in the latter definition of turning source to object code) and linking (the process of combining the necessary object code files together into one complete executable).
The original error that you saw is technically a "linking error", and is thrown by "ld", the linker. Unlike (strict) compile-time errors, there is no reference to source code lines, as the linker is already in object space.
By default, when gcc is given source code as input, it attempts to compile each and then link them all together. As noted in the other responses, it's possible to use flags to instruct gcc to just compile first, then use the object files later to link in a separate step. This two-step process may seem unnecessary (and probably is for very small programs) but it is very important when managing a very large program, where compiling the entire project each time you make a small change would waste a considerable amount of time.
$('.segment-name').click(function () {
if($(this).hasClass('segment-a')){
//class exist
}
});
I have a similar issue. It appears that PHP does not like php code inside included file. In your case solution is quite simple. Remove php code from navbar.php, simply leave plain HTML in it and it will work.
DOMDocument is a great choice. It's a module specifically designed for creating and manipulating XML documents. You can create a document from scratch, or open existing documents (or strings) and navigate and modify their structures.
$xml = new DOMDocument();
$xml_album = $xml->createElement("Album");
$xml_track = $xml->createElement("Track");
$xml_album->appendChild( $xml_track );
$xml->appendChild( $xml_album );
$xml->save("/tmp/test.xml");
To re-open and write:
$xml = new DOMDocument();
$xml->load('/tmp/test.xml');
$nodes = $xml->getElementsByTagName('Album') ;
if ($nodes->length > 0) {
//insert some stuff using appendChild()
}
//re-save
$xml->save("/tmp/test.xml");
I'd go with window.location = "http://...";
. I've been coding cross-browser JavaScript for a few years, and I've never experienced problems using this approach.
window.navigate
and window.location.href
seems a bit odd to me.
length
and dbms_lob.getlength
return the number of characters when applied to a CLOB (Character LOB). When applied to a BLOB (Binary LOB), dbms_lob.getlength
will return the number of bytes, which may differ from the number of characters in a multi-byte character set.
As the documentation doesn't specify what happens when you apply length
on a BLOB, I would advise against using it in that case. If you want the number of bytes in a BLOB, use dbms_lob.getlength
.
To run in Windows, copy this *.bat file to each directory you wish to use and run the ipython notebook by executing the batch file. This assumes you have ipython installed in windows.
set "var=%cd%"
cd var
ipython notebook
If you want greater control you can use javascript rather than use the meta tag. This would allow you to have a visual of some kind, e.g. a countdown.
Here is a very basic approach using setTimeout()
<html>_x000D_
<body>_x000D_
<p>You will be redirected in 3 seconds</p>_x000D_
<script>_x000D_
var timer = setTimeout(function() {_x000D_
window.location='http://example.com'_x000D_
}, 3000);_x000D_
</script>_x000D_
</body>_x000D_
</html>
_x000D_
I would like to point out over here that Overloading in PHP has a completely different meaning as compared to other programming languages. A lot of people have said that overloading isnt supported in PHP and by the conventional definition of overloading, yes that functionality isnt explicitly available.
However, the correct definition of overloading in PHP is completely different.
In PHP overloading refers to dynamically creating properties and methods using magic methods like __set() and __get(). These overloading methods are invoked when interacting with methods or properties that are not accessible or not declared.
Here is a link from the PHP manual : http://www.php.net/manual/en/language.oop5.overloading.php
It's actually very easy in jQuery:
$("#ddl_1").clone().attr("id",newId).appendTo("body");
Change .appendTo() of course...
-- First Truncate temporary table SQL> TRUNCATE TABLE test_temp1; -- Then Drop temporary table SQL> DROP TABLE test_temp1;
I rewrote c++ solution in first answer in powershell script. Script can determine this types of .exe and .dll files:
#Description C# compiler switch PE type machine corflags
#MSIL /platform:anycpu (default) PE32 x86 ILONLY
#MSIL 32 bit pref /platform:anycpu32bitpreferred PE32 x86 ILONLY | 32BITREQUIRED | 32BITPREFERRED
#x86 managed /platform:x86 PE32 x86 ILONLY | 32BITREQUIRED
#x86 mixed n/a PE32 x86 32BITREQUIRED
#x64 managed /platform:x64 PE32+ x64 ILONLY
#x64 mixed n/a PE32+ x64
#ARM managed /platform:arm PE32 ARM ILONLY
#ARM mixed n/a PE32 ARM
this solution has some advantages over corflags.exe and loading assembly via Assembly.Load in C# - you will never get BadImageFormatException or message about invalid header.
function GetActualAddressFromRVA($st, $sec, $numOfSec, $dwRVA)
{
[System.UInt32] $dwRet = 0;
for($j = 0; $j -lt $numOfSec; $j++)
{
$nextSectionOffset = $sec + 40*$j;
$VirtualSizeOffset = 8;
$VirtualAddressOffset = 12;
$SizeOfRawDataOffset = 16;
$PointerToRawDataOffset = 20;
$Null = @(
$curr_offset = $st.BaseStream.Seek($nextSectionOffset + $VirtualSizeOffset, [System.IO.SeekOrigin]::Begin);
[System.UInt32] $VirtualSize = $b.ReadUInt32();
[System.UInt32] $VirtualAddress = $b.ReadUInt32();
[System.UInt32] $SizeOfRawData = $b.ReadUInt32();
[System.UInt32] $PointerToRawData = $b.ReadUInt32();
if ($dwRVA -ge $VirtualAddress -and $dwRVA -lt ($VirtualAddress + $VirtualSize)) {
$delta = $VirtualAddress - $PointerToRawData;
$dwRet = $dwRVA - $delta;
return $dwRet;
}
);
}
return $dwRet;
}
function Get-Bitness2([System.String]$path, $showLog = $false)
{
$Obj = @{};
$Obj.Result = '';
$Obj.Error = $false;
$Obj.Log = @(Split-Path -Path $path -Leaf -Resolve);
$b = new-object System.IO.BinaryReader([System.IO.File]::Open($path,[System.IO.FileMode]::Open,[System.IO.FileAccess]::Read, [System.IO.FileShare]::Read));
$curr_offset = $b.BaseStream.Seek(0x3c, [System.IO.SeekOrigin]::Begin)
[System.Int32] $peOffset = $b.ReadInt32();
$Obj.Log += 'peOffset ' + "{0:X0}" -f $peOffset;
$curr_offset = $b.BaseStream.Seek($peOffset, [System.IO.SeekOrigin]::Begin);
[System.UInt32] $peHead = $b.ReadUInt32();
if ($peHead -ne 0x00004550) {
$Obj.Error = $true;
$Obj.Result = 'Bad Image Format';
$Obj.Log += 'cannot determine file type (not x64/x86/ARM) - exit with error';
};
if ($Obj.Error)
{
$b.Close();
Write-Host ($Obj.Log | Format-List | Out-String);
return $false;
};
[System.UInt16] $machineType = $b.ReadUInt16();
$Obj.Log += 'machineType ' + "{0:X0}" -f $machineType;
[System.UInt16] $numOfSections = $b.ReadUInt16();
$Obj.Log += 'numOfSections ' + "{0:X0}" -f $numOfSections;
if (($machineType -eq 0x8664) -or ($machineType -eq 0x200)) { $Obj.Log += 'machineType: x64'; }
elseif ($machineType -eq 0x14c) { $Obj.Log += 'machineType: x86'; }
elseif ($machineType -eq 0x1c0) { $Obj.Log += 'machineType: ARM'; }
else{
$Obj.Error = $true;
$Obj.Log += 'cannot determine file type (not x64/x86/ARM) - exit with error';
};
if ($Obj.Error) {
$b.Close();
Write-Output ($Obj.Log | Format-List | Out-String);
return $false;
};
$curr_offset = $b.BaseStream.Seek($peOffset+20, [System.IO.SeekOrigin]::Begin);
[System.UInt16] $sizeOfPeHeader = $b.ReadUInt16();
$coffOffset = $peOffset + 24;#PE header size is 24 bytes
$Obj.Log += 'coffOffset ' + "{0:X0}" -f $coffOffset;
$curr_offset = $b.BaseStream.Seek($coffOffset, [System.IO.SeekOrigin]::Begin);#+24 byte magic number
[System.UInt16] $pe32 = $b.ReadUInt16();
$clr20headerOffset = 0;
$flag32bit = $false;
$Obj.Log += 'pe32 magic number: ' + "{0:X0}" -f $pe32;
$Obj.Log += 'size of optional header ' + ("{0:D0}" -f $sizeOfPeHeader) + " bytes";
#COMIMAGE_FLAGS_ILONLY =0x00000001,
#COMIMAGE_FLAGS_32BITREQUIRED =0x00000002,
#COMIMAGE_FLAGS_IL_LIBRARY =0x00000004,
#COMIMAGE_FLAGS_STRONGNAMESIGNED =0x00000008,
#COMIMAGE_FLAGS_NATIVE_ENTRYPOINT =0x00000010,
#COMIMAGE_FLAGS_TRACKDEBUGDATA =0x00010000,
#COMIMAGE_FLAGS_32BITPREFERRED =0x00020000,
$COMIMAGE_FLAGS_ILONLY = 0x00000001;
$COMIMAGE_FLAGS_32BITREQUIRED = 0x00000002;
$COMIMAGE_FLAGS_32BITPREFERRED = 0x00020000;
$offset = 96;
if ($pe32 -eq 0x20b) {
$offset = 112;#size of COFF header is bigger for pe32+
}
$clr20dirHeaderOffset = $coffOffset + $offset + 14*8;#clr directory header offset + start of section number 15 (each section is 8 byte long);
$Obj.Log += 'clr20dirHeaderOffset ' + "{0:X0}" -f $clr20dirHeaderOffset;
$curr_offset = $b.BaseStream.Seek($clr20dirHeaderOffset, [System.IO.SeekOrigin]::Begin);
[System.UInt32] $clr20VirtualAddress = $b.ReadUInt32();
[System.UInt32] $clr20Size = $b.ReadUInt32();
$Obj.Log += 'clr20VirtualAddress ' + "{0:X0}" -f $clr20VirtualAddress;
$Obj.Log += 'clr20SectionSize ' + ("{0:D0}" -f $clr20Size) + " bytes";
if ($clr20Size -eq 0) {
if ($machineType -eq 0x1c0) { $Obj.Result = 'ARM native'; }
elseif ($pe32 -eq 0x10b) { $Obj.Result = '32-bit native'; }
elseif($pe32 -eq 0x20b) { $Obj.Result = '64-bit native'; }
$b.Close();
if ($Obj.Result -eq '') {
$Obj.Error = $true;
$Obj.Log += 'Unknown type of file';
}
else {
if ($showLog) { Write-Output ($Obj.Log | Format-List | Out-String); };
return $Obj.Result;
}
};
if ($Obj.Error) {
$b.Close();
Write-Host ($Obj.Log | Format-List | Out-String);
return $false;
};
[System.UInt32]$sectionsOffset = $coffOffset + $sizeOfPeHeader;
$Obj.Log += 'sectionsOffset ' + "{0:X0}" -f $sectionsOffset;
$realOffset = GetActualAddressFromRVA $b $sectionsOffset $numOfSections $clr20VirtualAddress;
$Obj.Log += 'real IMAGE_COR20_HEADER offset ' + "{0:X0}" -f $realOffset;
if ($realOffset -eq 0) {
$Obj.Error = $true;
$Obj.Log += 'cannot find COR20 header - exit with error';
$b.Close();
return $false;
};
if ($Obj.Error) {
$b.Close();
Write-Host ($Obj.Log | Format-List | Out-String);
return $false;
};
$curr_offset = $b.BaseStream.Seek($realOffset + 4, [System.IO.SeekOrigin]::Begin);
[System.UInt16] $majorVer = $b.ReadUInt16();
[System.UInt16] $minorVer = $b.ReadUInt16();
$Obj.Log += 'IMAGE_COR20_HEADER version ' + ("{0:D0}" -f $majorVer) + "." + ("{0:D0}" -f $minorVer);
$flagsOffset = 16;#+16 bytes - flags field
$curr_offset = $b.BaseStream.Seek($realOffset + $flagsOffset, [System.IO.SeekOrigin]::Begin);
[System.UInt32] $flag32bit = $b.ReadUInt32();
$Obj.Log += 'CorFlags: ' + ("{0:X0}" -f $flag32bit);
#Description C# compiler switch PE type machine corflags
#MSIL /platform:anycpu (default) PE32 x86 ILONLY
#MSIL 32 bit pref /platform:anycpu32bitpreferred PE32 x86 ILONLY | 32BITREQUIRED | 32BITPREFERRED
#x86 managed /platform:x86 PE32 x86 ILONLY | 32BITREQUIRED
#x86 mixed n/a PE32 x86 32BITREQUIRED
#x64 managed /platform:x64 PE32+ x64 ILONLY
#x64 mixed n/a PE32+ x64
#ARM managed /platform:arm PE32 ARM ILONLY
#ARM mixed n/a PE32 ARM
$isILOnly = ($flag32bit -band $COMIMAGE_FLAGS_ILONLY) -eq $COMIMAGE_FLAGS_ILONLY;
$Obj.Log += 'ILONLY: ' + $isILOnly;
if ($machineType -eq 0x1c0) {#if ARM
if ($isILOnly) { $Obj.Result = 'ARM managed'; }
else { $Obj.Result = 'ARM mixed'; }
}
elseif ($pe32 -eq 0x10b) {#pe32
$is32bitRequired = ($flag32bit -band $COMIMAGE_FLAGS_32BITREQUIRED) -eq $COMIMAGE_FLAGS_32BITREQUIRED;
$is32bitPreffered = ($flag32bit -band $COMIMAGE_FLAGS_32BITPREFERRED) -eq $COMIMAGE_FLAGS_32BITPREFERRED;
$Obj.Log += '32BIT: ' + $is32bitRequired;
$Obj.Log += '32BIT PREFFERED: ' + $is32bitPreffered
if ($is32bitRequired -and $isILOnly -and $is32bitPreffered) { $Obj.Result = 'AnyCpu 32bit-preffered'; }
elseif ($is32bitRequired -and $isILOnly -and !$is32bitPreffered){ $Obj.Result = 'x86 managed'; }
elseif (!$is32bitRequired -and !$isILOnly -and $is32bitPreffered) { $Obj.Result = 'x86 mixed'; }
elseif ($isILOnly) { $Obj.Result = 'AnyCpu'; }
}
elseif ($pe32 -eq 0x20b) {#pe32+
if ($isILOnly) { $Obj.Result = 'x64 managed'; }
else { $Obj.Result = 'x64 mixed'; }
}
$b.Close();
if ($showLog) { Write-Host ($Obj.Log | Format-List | Out-String); }
if ($Obj.Result -eq ''){ return 'Unknown type of file';};
$flags = '';
if ($isILOnly) {$flags += 'ILONLY';}
if ($is32bitRequired) {
if ($flags -ne '') {$flags += ' | ';}
$flags += '32BITREQUIRED';
}
if ($is32bitPreffered) {
if ($flags -ne '') {$flags += ' | ';}
$flags += '32BITPREFERRED';
}
if ($flags -ne '') {$flags = ' (' + $flags +')';}
return $Obj.Result + $flags;
}
usage example:
#$filePath = "C:\Windows\SysWOW64\regedit.exe";#32 bit native on 64bit windows
$filePath = "C:\Windows\regedit.exe";#64 bit native on 64bit windows | should be 32 bit native on 32bit windows
Get-Bitness2 $filePath $true;
you can omit second parameter if you don't need to see details
I would recommend using CSS for this. You should create a CSS rule to enforce the centering, for example:
.ui-helper-center {
text-align: center;
}
And then add the ui-helper-center
class to the table cells for which you wish to control the alignment:
<td class="ui-helper-center">Content</td>
EDIT: Since this answer was accepted, I felt obligated to edit out the parts that caused a flame-war in the comments, and to not promote poor and outdated practices.
See Gabe's answer for how to include the CSS rule into your page.
It's little late but i think this will be very helpful. No one mention about use scheme like PKCS#7 padding. You can use it instead the previous functions to pad(when do encryption) and unpad(when do decryption).i will provide the full Source Code below.
import base64
import hashlib
from Crypto import Random
from Crypto.Cipher import AES
import pkcs7
class Encryption:
def __init__(self):
pass
def Encrypt(self, PlainText, SecurePassword):
pw_encode = SecurePassword.encode('utf-8')
text_encode = PlainText.encode('utf-8')
key = hashlib.sha256(pw_encode).digest()
iv = Random.new().read(AES.block_size)
cipher = AES.new(key, AES.MODE_CBC, iv)
pad_text = pkcs7.encode(text_encode)
msg = iv + cipher.encrypt(pad_text)
EncodeMsg = base64.b64encode(msg)
return EncodeMsg
def Decrypt(self, Encrypted, SecurePassword):
decodbase64 = base64.b64decode(Encrypted.decode("utf-8"))
pw_encode = SecurePassword.decode('utf-8')
iv = decodbase64[:AES.block_size]
key = hashlib.sha256(pw_encode).digest()
cipher = AES.new(key, AES.MODE_CBC, iv)
msg = cipher.decrypt(decodbase64[AES.block_size:])
pad_text = pkcs7.decode(msg)
decryptedString = pad_text.decode('utf-8')
return decryptedString
import StringIO
import binascii
def decode(text, k=16):
nl = len(text)
val = int(binascii.hexlify(text[-1]), 16)
if val > k:
raise ValueError('Input is not padded or padding is corrupt')
l = nl - val
return text[:l]
def encode(text, k=16):
l = len(text)
output = StringIO.StringIO()
val = k - (l % k)
for _ in xrange(val):
output.write('%02x' % val)
return text + binascii.unhexlify(output.getvalue())
It's even easier to use parent > child selector relationship so the inner div do not need to have their css classes to be defined explicitly:
.display-table {_x000D_
display: table; _x000D_
}_x000D_
.display-table > div { _x000D_
display: table-row; _x000D_
}_x000D_
.display-table > div > div { _x000D_
display: table-cell;_x000D_
padding: 5px;_x000D_
}
_x000D_
<div class="display-table">_x000D_
<div>_x000D_
<div>0, 0</div>_x000D_
<div>0, 1</div>_x000D_
</div>_x000D_
<div>_x000D_
<div>1, 0</div>_x000D_
<div>1, 1</div>_x000D_
</div>_x000D_
</div>
_x000D_
One possible naming convention is to use something similar to the naming scheme jQuery uses. It's not universally adopted but it is pretty common.
product-name.plugin-ver.sion.filetype.js
where the product-name
+ plugin
pair can also represent a namespace and a module. The version
and filetype
are usually optional.
filetype
can be something relative to how the content of the file is. Often seen are:
min
for minified filescustom
for custom built or modified filesExamples:
jquery-1.4.2.min.js
jquery.plugin-0.1.js
myapp.invoice.js
You are recursively defining x
with x
. As if someone asks you how old are you? And you answer "I am twice my age". Which is meaningless.
You must say I am twice John's age or any other variable but yourself.
computed variables are always dependent on another variable.
The rule of the thumb is never access the property itself from within the getter ie get
. Because that would trigger another get
which would trigger another . . . Don't even print it. Because printing also requires to 'get' the value before it can print it!
struct Person{
var name: String{
get{
print(name) // DON'T do this!!!!
return "as"
}
set{
}
}
}
let p1 = Person()
As that would give the following warning:
Attempting to access 'name' from within it's own getter.
The error looks vague like this:
As an alternative you might want to use didSet
. With didSet
you'll get a hold to the value that is was set before and just got set to. For more see this answer.
ffmpeg -i sample.avi
will give you the audio/video format info for your file. Make sure you have the proper libraries configured to parse the input streams. Also, make sure that the file isn't corrupt.
for (Map.Entry<String,String> entry : map.entrySet()) {
String key = entry.getKey();
String value = entry.getValue();
// do stuff
}
To get estimates, see Greg Smith's answer.
To get exact counts, the other answers so far are plagued with some issues, some of them serious (see below). Here's a version that's hopefully better:
CREATE FUNCTION rowcount_all(schema_name text default 'public')
RETURNS table(table_name text, cnt bigint) as
$$
declare
table_name text;
begin
for table_name in SELECT c.relname FROM pg_class c
JOIN pg_namespace s ON (c.relnamespace=s.oid)
WHERE c.relkind = 'r' AND s.nspname=schema_name
LOOP
RETURN QUERY EXECUTE format('select cast(%L as text),count(*) from %I.%I',
table_name, schema_name, table_name);
END LOOP;
end
$$ language plpgsql;
It takes a schema name as parameter, or public
if no parameter is given.
To work with a specific list of schemas or a list coming from a query without modifying the function, it can be called from within a query like this:
WITH rc(schema_name,tbl) AS (
select s.n,rowcount_all(s.n) from (values ('schema1'),('schema2')) as s(n)
)
SELECT schema_name,(tbl).* FROM rc;
This produces a 3-columns output with the schema, the table and the rows count.
Now here are some issues in the other answers that this function avoids:
Table and schema names shouldn't be injected into executable SQL without being quoted, either with quote_ident
or with the more modern format()
function with its %I
format string. Otherwise some malicious person may name their table tablename;DROP TABLE other_table
which is perfectly valid as a table name.
Even without the SQL injection and funny characters problems, table name may exist in variants differing by case. If a table is named ABCD
and another one abcd
, the SELECT count(*) FROM...
must use a quoted name otherwise it will skip ABCD
and count abcd
twice. The %I
of format does this automatically.
information_schema.tables
lists custom composite types in addition to tables, even when table_type is 'BASE TABLE'
(!). As a consequence, we can't iterate oninformation_schema.tables
, otherwise we risk having select count(*) from name_of_composite_type
and that would fail. OTOH pg_class where relkind='r'
should always work fine.
The type of COUNT() is bigint
, not int
. Tables with more than 2.15 billion rows may exist (running a count(*) on them is a bad idea, though).
A permanent type need not to be created for a function to return a resultset with several columns. RETURNS TABLE(definition...)
is a better alternative.
line.strip() == ''
Or, if you don't want to "eat up" lines consisting of spaces:
line in ('\n', '\r\n')
I suggest you to use ArgueJS this way:
function myFunc(){
arguments = __({requiredArg: undefined, optionalArg: [undefined: 'defaultValue'})
//do stuff, using arguments.requiredArg and arguments.optionalArg
// to access your arguments
}
You can also replace undefined
by the type of the argument you expect to receive, like this:
function myFunc(){
arguments = __({requiredArg: Number, optionalArg: [String: 'defaultValue'})
//do stuff, using arguments.requiredArg and arguments.optionalArg
// to access your arguments
}
I believe the top answer successfully redirects non-www to www (ex: mysite.com -> www.mysite.com), but doesn't take into account wildcard subdomains, which results in:
random.mysite.com -> www.random.mysite.com
Here's a solution with/without HTTPS
HTTP
RewriteEngine On
RewriteCond %{HTTP_HOST} !www.mysite.com$ [NC]
RewriteRule ^(.*)$ http%{ENV:protossl}://www.mysite.com/$1 [L,R=301]
HTTP/HTTPS
RewriteEngine On
RewriteCond %{HTTPS} =on
RewriteRule ^(.*)$ - [env=protocol:https]
RewriteCond %{HTTPS} !=on
RewriteRule ^(.*)$ - [env=protocol:http]
RewriteCond %{HTTP_HOST} !www.mysite.com$ [NC]
RewriteRule ^(.*)$ %{ENV:protocol}://www.mysite.com/$1 [L,R=301]
*note: I haven't tested https because I don't currently have a cert to test, but if someone can verify or optimize what I have that would be awesome.
You can, like this, in PHP 7:
class User{
public $id;
public $name;
public $password;
public $Profile;
public $History; /* (optional declaration, if it isn't public) */
public function __construct($id,$name,$password){
$this->id=$id;
$this->name=$name;
$this->name=$name;
$this->Profile=(object)[
'get'=>function(){
return 'Name: '.$this->name.''.(($this->History->get)());
}
];
$this->History=(object)[
'get'=>function(){
return ' History: '.(($this->History->track)());
}
,'track'=>function(){
return (lcg_value()>0.5?'good':'bad');
}
];
}
}
echo ((new User(0,'Lior','nyh'))->Profile->get)();
In terminal or IPython, type:
help('modules')
then
In [1]: import #import press-TAB
Display all 631 possibilities? (y or n)
ANSI audiodev markupbase
AptUrl audioop markupsafe
ArgImagePlugin avahi marshal
BaseHTTPServer axi math
Bastion base64 md5
BdfFontFile bdb mhlib
BmpImagePlugin binascii mimetools
BufrStubImagePlugin binhex mimetypes
CDDB bisect mimify
CDROM bonobo mmap
CGIHTTPServer brlapi mmkeys
Canvas bsddb modulefinder
CommandNotFound butterfly multifile
ConfigParser bz2 multiprocessing
ContainerIO cPickle musicbrainz2
Cookie cProfile mutagen
Crypto cStringIO mutex
CurImagePlugin cairo mx
DLFCN calendar netrc
DcxImagePlugin cdrom new
Dialog cgi nis
DiscID cgitb nntplib
DistUpgrade checkbox ntpath
white-space: pre-wrap
Swift 2.0 on Xcode 7 (Beta) with do/try/catch block:
// MARK: NSURLConnectionDataDelegate
func connectionDidFinishLoading(connection:NSURLConnection) {
do {
if let response:NSDictionary = try NSJSONSerialization.JSONObjectWithData(receivedData, options:NSJSONReadingOptions.MutableContainers) as? Dictionary<String, AnyObject> {
print(response)
} else {
print("Failed...")
}
} catch let serializationError as NSError {
print(serializationError)
}
}
Program to get the current working directory=user.dir
public class CurrentDirectoryExample {
public static void main(String args[]) {
String current = System.getProperty("user.dir");
System.out.println("Current working directory in Java : " + current);
}
}
My code for Xamarin, I am using FrameLayout for this purpose and following is my code:
List<object> content = new List<object>();
object aWebView = new {ContentType="web",Width="300", Height = "300",X="10",Y="30",ContentUrl="http://www.google.com" };
content.Add(aWebView);
object aWebView2 = new { ContentType = "image", Width = "300", Height = "300", X = "20", Y = "40", ContentUrl = "https://www.nasa.gov/sites/default/files/styles/image_card_4x3_ratio/public/thumbnails/image/leisa_christmas_false_color.png?itok=Jxf0IlS4" };
content.Add(aWebView2);
FrameLayout myLayout = (FrameLayout)FindViewById(Resource.Id.frameLayout1);
foreach (object item in content)
{
string contentType = item.GetType().GetProperty("ContentType").GetValue(item, null).ToString();
FrameLayout.LayoutParams param = new FrameLayout.LayoutParams(Convert.ToInt32(item.GetType().GetProperty("Width").GetValue(item, null).ToString()), Convert.ToInt32(item.GetType().GetProperty("Height").GetValue(item, null).ToString()));
param.LeftMargin = Convert.ToInt32(item.GetType().GetProperty("X").GetValue(item, null).ToString());
param.TopMargin = Convert.ToInt32(item.GetType().GetProperty("Y").GetValue(item, null).ToString());
switch (contentType) {
case "web":{
WebView webview = new WebView(this);
//webview.hei;
myLayout.AddView(webview, param);
webview.SetWebViewClient(new WebViewClient());
webview.LoadUrl(item.GetType().GetProperty("ContentUrl").GetValue(item, null).ToString());
break;
}
case "image":
{
ImageView imageview = new ImageView(this);
//webview.hei;
myLayout.AddView(imageview, param);
var imageBitmap = GetImageBitmapFromUrl("https://www.nasa.gov/sites/default/files/styles/image_card_4x3_ratio/public/thumbnails/image/leisa_christmas_false_color.png?itok=Jxf0IlS4");
imageview.SetImageBitmap(imageBitmap);
break;
}
}
}
It was useful for me because I needed the property of view to overlap each other on basis of their appearance, e.g the views get stacked one above other.
I did it this way, where 'struts2ActionName' is the struts2 action in my case. You may use any url instead.
var urlAdditionCert =${pageContext.request.contextPath}/struts2ActionName";
$("#dialogId").load( urlAdditionCert).dialog({
modal: true,
height: $("#body").height(),
width: $("#body").width()*.8
});
Not double click, you run it with the correct command line parameters, so type something like MyService -i
and then MyService -u
to uninstall it`.
You could otherwise use sc.exe to install and uninstall it (or copy along InstallUtil.exe).
In my case, I just wanted the text from a specific area of the PDF document so I used a rectangle around the area and extracted the text from it. In the sample below the coordinates are for the entire page. I don't have PDF authoring tools so when it came time to narrow down the rectangle to the specific location I took a few guesses at the coordinates until the area was found.
Rectangle _pdfRect = new Rectangle(0f, 0f, 612f, 792f); // Entire page - PDF coordinate system 0,0 is bottom left corner. 72 points / inch
RenderFilter _renderfilter = new RegionTextRenderFilter(_pdfRect);
ITextExtractionStrategy _strategy = new FilteredTextRenderListener(new LocationTextExtractionStrategy(), _filter);
string _text = PdfTextExtractor.GetTextFromPage(_pdfReader, 1, _strategy);
As noted by the above comments the resulting text doesn't maintain any of the formatting found in the PDF document, however, I was happy that it did preserve the carriage returns. In my case, there were enough constants in the text that I was able to extract the values that I required.
The printf() family of functions uses %
character as a placeholder. When a %
is encountered, printf reads the characters following the %
to determine what to do:
%s - Take the next argument and print it as a string
%d - Take the next argument and print it as an int
See this Wikipedia article for a nice picture: printf format string
The \n
at the end of the string is for a newline/carriage-return character.
Note that typeof always returns a string, and doesn't generate an error if the variable doesn't exist at all.
function A(val){
if(typeof(val) === "undefined")
//do this
else
//do this
}
Just simply write BETWEEN '{$startDate}' AND '{$endDate}' in where condition as
->where("date BETWEEN '{$startDate}' AND '{$endDate}'")
Static methods cannot be overridden because they are not dispatched on the object instance at runtime. The compiler decides which method gets called.
This is why you get a compiler warning when you write
MyClass myObject = new MyClass();
myObject.myStaticMethod();
// should be written as
MyClass.myStaticMethod()
// because it is not dispatched on myObject
myObject = new MySubClass();
myObject.myStaticMethod();
// still calls the static method in MyClass, NOT in MySubClass
Static methods can be overloaded (meaning that you can have the same method name for several methods as long as they have different parameter types).
Integer.parseInt("10");
Integer.parseInt("AA", 16);
This solved my problem.
stringVar.replaceAll("\\\\n", "\\\n");
Since ADT 16 you can use Android Lint. It is really amazing tool.
Android Lint is a new tool for ADT 16 (and Tools 16) which scans Android project sources for potential bugs.
Here are some examples of the types of errors that it looks for:
- Missing translations (and unused translations)
- Layout performance problems (all the issues the old layoutopt tool used to find, and more)
- Unused resources
- Inconsistent array sizes (when arrays are defined in multiple configurations)
- Accessibility and internationalization problems (hardcoded strings, missing contentDescription, etc)
- Icon problems (like missing densities, duplicate icons, wrong sizes, etc)
- Usability problems (like not specifying an input type on a text field)
- Manifest errors and many more.
However, it has some issues (don't know if they're already fixed) and if you want to delete hundreds of supposedly unused resources I'd recommend to manually compile project several times during resource removing to be sure that Lint didn't remove something needed.
You can use this simple plugin to add scrollUp
and scrollDown
to your jQuery
https://github.com/phpust/JQueryScrollDetector
var lastScrollTop = 0;
var action = "stopped";
var timeout = 100;
// Scroll end detector:
$.fn.scrollEnd = function(callback, timeout) {
$(this).scroll(function(){
// get current scroll top
var st = $(this).scrollTop();
var $this = $(this);
// fix for page loads
if (lastScrollTop !=0 )
{
// if it's scroll up
if (st < lastScrollTop){
action = "scrollUp";
}
// else if it's scroll down
else if (st > lastScrollTop){
action = "scrollDown";
}
}
// set the current scroll as last scroll top
lastScrollTop = st;
// check if scrollTimeout is set then clear it
if ($this.data('scrollTimeout')) {
clearTimeout($this.data('scrollTimeout'));
}
// wait until timeout done to overwrite scrolls output
$this.data('scrollTimeout', setTimeout(callback,timeout));
});
};
$(window).scrollEnd(function(){
if(action!="stopped"){
//call the event listener attached to obj.
$(document).trigger(action);
}
}, timeout);
Do not use a KeyListener for this as you'll miss much including pasting of text. Also a KeyListener is a very low-level construct and as such, should be avoided in Swing applications.
The solution has been described many times on SO: Use a DocumentFilter. There are several examples of this on this site, some written by me.
For example: using-documentfilter-filterbypass
Also for tutorial help, please look at: Implementing a DocumentFilter.
Edit
For instance:
import javax.swing.JOptionPane;
import javax.swing.JPanel;
import javax.swing.JTextField;
import javax.swing.text.AttributeSet;
import javax.swing.text.BadLocationException;
import javax.swing.text.Document;
import javax.swing.text.DocumentFilter;
import javax.swing.text.PlainDocument;
public class DocFilter {
public static void main(String[] args) {
JTextField textField = new JTextField(10);
JPanel panel = new JPanel();
panel.add(textField);
PlainDocument doc = (PlainDocument) textField.getDocument();
doc.setDocumentFilter(new MyIntFilter());
JOptionPane.showMessageDialog(null, panel);
}
}
class MyIntFilter extends DocumentFilter {
@Override
public void insertString(FilterBypass fb, int offset, String string,
AttributeSet attr) throws BadLocationException {
Document doc = fb.getDocument();
StringBuilder sb = new StringBuilder();
sb.append(doc.getText(0, doc.getLength()));
sb.insert(offset, string);
if (test(sb.toString())) {
super.insertString(fb, offset, string, attr);
} else {
// warn the user and don't allow the insert
}
}
private boolean test(String text) {
try {
Integer.parseInt(text);
return true;
} catch (NumberFormatException e) {
return false;
}
}
@Override
public void replace(FilterBypass fb, int offset, int length, String text,
AttributeSet attrs) throws BadLocationException {
Document doc = fb.getDocument();
StringBuilder sb = new StringBuilder();
sb.append(doc.getText(0, doc.getLength()));
sb.replace(offset, offset + length, text);
if (test(sb.toString())) {
super.replace(fb, offset, length, text, attrs);
} else {
// warn the user and don't allow the insert
}
}
@Override
public void remove(FilterBypass fb, int offset, int length)
throws BadLocationException {
Document doc = fb.getDocument();
StringBuilder sb = new StringBuilder();
sb.append(doc.getText(0, doc.getLength()));
sb.delete(offset, offset + length);
if (test(sb.toString())) {
super.remove(fb, offset, length);
} else {
// warn the user and don't allow the insert
}
}
}
Why is this important?
So you can do:
cat Dockerfile | envsubst | docker build -t my-target -
Then have a Dockerfile with something like:
ENV MY_ENV_VAR $MY_ENV_VAR
I guess there might be a problem with some special characters, but this works for most cases at least.
I use sandbox="..."
Top navigation is what you want to prevent, so leave that out and it will not be allowed. Anything left out will be blocked
ex.
<iframe sandbox="allow-same-origin allow-scripts allow-popups allow-forms" src="http://www.example.com"</iframe>
For those who have accidentally (or not) changed one of the .conf files and apache does not run even after trying all the above solutions.
One easy way to track where the issue is located, is to run Apache via command prompt:
(On windows) : open command prompt as admin then navigate inside the bin folder of Apache , next run
httpd
in order to run apache
C:\xampp\apache\bin\httpd
For my case it was :
someone had added a virtual host in the specific file that caused the problem . I commented the lines and Apache ran fine.
If you have a self-signed certificate generated by makecert.exe
on a Windows machine, you will get two files: cert.pvk
and cert.cer
. These can be converted to a pfx using pvk2pfx
pvk2pfx
is found in the same location as makecert
(e.g. C:\Program Files (x86)\Windows Kits\10\bin\x86
or similar)
pvk2pfx -pvk cert.pvk -spc cert.cer -pfx cert.pfx
As Robert has pointed out in his answer: DecimalFormat is neither synchronized nor does the API guarantee thread safety (it might depend on the JVM version/vendor you are using).
Use Spring's Numberformatter instead, which is thread safe.
I have found that for some domains, the above answers do not work. The quickest way I have found is to first check for an NS record. If that doesn't exist, check for an SOA record. If that doesn't exist, recursively resolve the name using dig and take the last NS record returned. An example that fits this is analyticsdcs.ccs.mcafee.com.
host -t NS analyticsdcs.ccs.mcafee.com.
host -t SOA analyticsdcs.ccs.mcafee.com.
dig +trace analyticsdcs.ccs.mcafee.com. | grep -w 'IN[[:space:]]*NS' | tail -1
host analyticsdcs.ccs.mcafee.com. gtm2.mcafee.com.
There is a graphical interface solution as well. Just type
gitk --all
A new application window will prompt with a graphical representation of your whole repo, where it is very easy to realize if a branch was already merged or not
You can set @WeekNum and @YearNum to whatever you want - in this example they are derived from the @datecol variable, which is set to GETDATE() for purposes of illustration. Once you have those values- you can calculate the date range for a week by using the following:
DECLARE @datecol datetime = GETDATE();
DECLARE @WeekNum INT
, @YearNum char(4);
SELECT @WeekNum = DATEPART(WK, @datecol)
, @YearNum = CAST(DATEPART(YY, @datecol) AS CHAR(4));
-- once you have the @WeekNum and @YearNum set, the following calculates the date range.
SELECT DATEADD(wk, DATEDIFF(wk, 6, '1/1/' + @YearNum) + (@WeekNum-1), 6) AS StartOfWeek;
SELECT DATEADD(wk, DATEDIFF(wk, 5, '1/1/' + @YearNum) + (@WeekNum-1), 5) AS EndOfWeek;
No they are not bad at all. You need to look at the (machine) code produced by the compiler to make this determination, sometimes it is far far worse to use a local than a global. Also note that putting "static" on a local variable is basically making it a global (and creates other ugly problems that a real global would solve). "local globals" are particularly bad.
Globals give you clean control over your memory usage as well, something far more difficult to do with locals. These days that only matters in embedded environments where memory is quite limited. Something to know before you assume that embedded is the same as other environments and assume the programming rules are the same across the board.
It is good that you question the rules being taught, most of them are not for the reasons you are being told. The most important lesson though is not that this is a rule to carry with you forever, but this is a rule required to honor in order to pass this class and move forward. In life you will find that for company XYZ you will have other programming rules that you in the end will have to honor in order to keep getting a paycheck. In both situations you can argue the rule, but I think you will have far better luck at a job than at school. You are just another of many students, your seat will be replaced soon, the professors wont, at a job you are one of a small team of players that have to see this product to the end and in that environment the rules developed are for the benefit of the team members as well as the product and the company, so if everyone is like minded or if for the particular product there is good engineering reason to violate something you learned in college or some book on generic programming, then sell your idea to the team and write it down as a valid if not the preferred method. Everything is fair game in the real world.
If you follow all of the programming rules taught to you in school or books your programming career will be extremely limited. You can likely survive and have a fruitful career, but the breadth and width of the environments available to you will be extremely limited. If you know how and why the rule is there and can defend it, thats good, if you only reason is "because my teacher said so", well thats not so good.
Note that topics like this are often argued in the workplace and will continue to be, as compilers and processors (and languages) evolve so do these kinds of rules and without defending your position and possibly being taught a lesson by someone with another opinion you wont move forward.
In the mean time, then just do whatever the one that speaks the loudest or carries the biggest stick says (until such a time as you are the one that yells the loudest and carries the biggest stick).
Assets provide a way to include arbitrary files like text, xml, fonts, music, and video in your application. If you try to include these files as "resources", Android will process them into its resource system and you will not be able to get the raw data. If you want to access data untouched, Assets are one way to do it.
The best solution I found so far is the one proposed by David J Marland in his blog, to support opacity in old browsers (IE 6+):
.alpha30{
background:rgb(255,0,0); /* Fallback for web browsers that don't support RGBa nor filter */
background: transparent\9; /* backslash 9 hack to prevent IE 8 from falling into the fallback */
background:rgba(255,0,0,0.3); /* RGBa declaration for browsers that support it */
filter:progid:DXImageTransform.Microsoft.gradient(startColorstr=#4cFF0000,endColorstr=#4cFF0000); /* needed for IE 6-8 */
zoom: 1; /* needed for IE 6-8 */
}
/*
* CSS3 selector (not supported by IE 6 to IE 8),
* to avoid IE more recent versions to apply opacity twice
* (once with rgba and once with filter)
*/
.alpha30:nth-child(n) {
filter: none;
}
Single command without ps variables when using JSON
as body {lastName:"doe"}
for POST api call:
Invoke-WebRequest -Headers @{"Authorization" = "Bearer N-1234ulmMGhsDsCAEAzmo1tChSsq323sIkk4Zq9"} `
-Method POST `
-Body (@{"lastName"="doe";}|ConvertTo-Json) `
-Uri https://api.dummy.com/getUsers `
-ContentType application/json
int RoundedUp = (int) Math.ceil(RandomReal);
This seemed to do the perfect job. Worked everytime.
This will give you the desired result
#!/usr/bin/python
import os
# traverse root directory, and list directories as dirs and files as files
for root, dirs, files in os.walk("."):
path = root.split(os.sep)
print((len(path) - 1) * '---', os.path.basename(root))
for file in files:
print(len(path) * '---', file)
You only need the async
pipe:
<li *ngFor="let afd of afdeling | async">
{{afd.patientid}}
</li>
always use the async
pipe when dealing with Observables directly without explicitly unsubscribe.
The only way I achieved the "best case" scenario described, was putting the image as a background:
<div class="container"></div>?
.container {
width: 150px;
height: 100px;
background-image: url("http://i.stack.imgur.com/2OrtT.jpg");
background-size: cover;
background-repeat: no-repeat;
background-position: 50% 50%;
}?
Whenever you need to use a filter with a concatenated string (or a basic math operation) you should wrap it with ()'s. Eg.:
{{ ('http://' ~ app.request.host) | url_encode }}
You can try
$objPHPExcel->getActiveSheet()->getStyle(1)->getFont()->setBold(true);
Using the code below you can extend the partial context class with a method that will take a collection of entity objects and bulk copy them to the database. Simply replace the name of the class from MyEntities to whatever your entity class is named and add it to your project, in the correct namespace. After that all you need to do is call the BulkInsertAll method handing over the entity objects you want to insert. Do not reuse the context class, instead create a new instance every time you use it. This is required, at least in some versions of EF, since the authentication data associated with the SQLConnection used here gets lost after having used the class once. I don't know why.
This version is for EF 5
public partial class MyEntities
{
public void BulkInsertAll<T>(T[] entities) where T : class
{
var conn = (SqlConnection)Database.Connection;
conn.Open();
Type t = typeof(T);
Set(t).ToString();
var objectContext = ((IObjectContextAdapter)this).ObjectContext;
var workspace = objectContext.MetadataWorkspace;
var mappings = GetMappings(workspace, objectContext.DefaultContainerName, typeof(T).Name);
var tableName = GetTableName<T>();
var bulkCopy = new SqlBulkCopy(conn) { DestinationTableName = tableName };
// Foreign key relations show up as virtual declared
// properties and we want to ignore these.
var properties = t.GetProperties().Where(p => !p.GetGetMethod().IsVirtual).ToArray();
var table = new DataTable();
foreach (var property in properties)
{
Type propertyType = property.PropertyType;
// Nullable properties need special treatment.
if (propertyType.IsGenericType &&
propertyType.GetGenericTypeDefinition() == typeof(Nullable<>))
{
propertyType = Nullable.GetUnderlyingType(propertyType);
}
// Since we cannot trust the CLR type properties to be in the same order as
// the table columns we use the SqlBulkCopy column mappings.
table.Columns.Add(new DataColumn(property.Name, propertyType));
var clrPropertyName = property.Name;
var tableColumnName = mappings[property.Name];
bulkCopy.ColumnMappings.Add(new SqlBulkCopyColumnMapping(clrPropertyName, tableColumnName));
}
// Add all our entities to our data table
foreach (var entity in entities)
{
var e = entity;
table.Rows.Add(properties.Select(property => GetPropertyValue(property.GetValue(e, null))).ToArray());
}
// send it to the server for bulk execution
bulkCopy.BulkCopyTimeout = 5 * 60;
bulkCopy.WriteToServer(table);
conn.Close();
}
private string GetTableName<T>() where T : class
{
var dbSet = Set<T>();
var sql = dbSet.ToString();
var regex = new Regex(@"FROM (?<table>.*) AS");
var match = regex.Match(sql);
return match.Groups["table"].Value;
}
private object GetPropertyValue(object o)
{
if (o == null)
return DBNull.Value;
return o;
}
private Dictionary<string, string> GetMappings(MetadataWorkspace workspace, string containerName, string entityName)
{
var mappings = new Dictionary<string, string>();
var storageMapping = workspace.GetItem<GlobalItem>(containerName, DataSpace.CSSpace);
dynamic entitySetMaps = storageMapping.GetType().InvokeMember(
"EntitySetMaps",
BindingFlags.GetProperty | BindingFlags.NonPublic | BindingFlags.Instance,
null, storageMapping, null);
foreach (var entitySetMap in entitySetMaps)
{
var typeMappings = GetArrayList("TypeMappings", entitySetMap);
dynamic typeMapping = typeMappings[0];
dynamic types = GetArrayList("Types", typeMapping);
if (types[0].Name == entityName)
{
var fragments = GetArrayList("MappingFragments", typeMapping);
var fragment = fragments[0];
var properties = GetArrayList("AllProperties", fragment);
foreach (var property in properties)
{
var edmProperty = GetProperty("EdmProperty", property);
var columnProperty = GetProperty("ColumnProperty", property);
mappings.Add(edmProperty.Name, columnProperty.Name);
}
}
}
return mappings;
}
private ArrayList GetArrayList(string property, object instance)
{
var type = instance.GetType();
var objects = (IEnumerable)type.InvokeMember(property, BindingFlags.GetProperty | BindingFlags.NonPublic | BindingFlags.Instance, null, instance, null);
var list = new ArrayList();
foreach (var o in objects)
{
list.Add(o);
}
return list;
}
private dynamic GetProperty(string property, object instance)
{
var type = instance.GetType();
return type.InvokeMember(property, BindingFlags.GetProperty | BindingFlags.NonPublic | BindingFlags.Instance, null, instance, null);
}
}
This version is for EF 6
public partial class CMLocalEntities
{
public void BulkInsertAll<T>(T[] entities) where T : class
{
var conn = (SqlConnection)Database.Connection;
conn.Open();
Type t = typeof(T);
Set(t).ToString();
var objectContext = ((IObjectContextAdapter)this).ObjectContext;
var workspace = objectContext.MetadataWorkspace;
var mappings = GetMappings(workspace, objectContext.DefaultContainerName, typeof(T).Name);
var tableName = GetTableName<T>();
var bulkCopy = new SqlBulkCopy(conn) { DestinationTableName = tableName };
// Foreign key relations show up as virtual declared
// properties and we want to ignore these.
var properties = t.GetProperties().Where(p => !p.GetGetMethod().IsVirtual).ToArray();
var table = new DataTable();
foreach (var property in properties)
{
Type propertyType = property.PropertyType;
// Nullable properties need special treatment.
if (propertyType.IsGenericType &&
propertyType.GetGenericTypeDefinition() == typeof(Nullable<>))
{
propertyType = Nullable.GetUnderlyingType(propertyType);
}
// Since we cannot trust the CLR type properties to be in the same order as
// the table columns we use the SqlBulkCopy column mappings.
table.Columns.Add(new DataColumn(property.Name, propertyType));
var clrPropertyName = property.Name;
var tableColumnName = mappings[property.Name];
bulkCopy.ColumnMappings.Add(new SqlBulkCopyColumnMapping(clrPropertyName, tableColumnName));
}
// Add all our entities to our data table
foreach (var entity in entities)
{
var e = entity;
table.Rows.Add(properties.Select(property => GetPropertyValue(property.GetValue(e, null))).ToArray());
}
// send it to the server for bulk execution
bulkCopy.BulkCopyTimeout = 5*60;
bulkCopy.WriteToServer(table);
conn.Close();
}
private string GetTableName<T>() where T : class
{
var dbSet = Set<T>();
var sql = dbSet.ToString();
var regex = new Regex(@"FROM (?<table>.*) AS");
var match = regex.Match(sql);
return match.Groups["table"].Value;
}
private object GetPropertyValue(object o)
{
if (o == null)
return DBNull.Value;
return o;
}
private Dictionary<string, string> GetMappings(MetadataWorkspace workspace, string containerName, string entityName)
{
var mappings = new Dictionary<string, string>();
var storageMapping = workspace.GetItem<GlobalItem>(containerName, DataSpace.CSSpace);
dynamic entitySetMaps = storageMapping.GetType().InvokeMember(
"EntitySetMaps",
BindingFlags.GetProperty | BindingFlags.Public | BindingFlags.Instance,
null, storageMapping, null);
foreach (var entitySetMap in entitySetMaps)
{
var typeMappings = GetArrayList("EntityTypeMappings", entitySetMap);
dynamic typeMapping = typeMappings[0];
dynamic types = GetArrayList("Types", typeMapping);
if (types[0].Name == entityName)
{
var fragments = GetArrayList("MappingFragments", typeMapping);
var fragment = fragments[0];
var properties = GetArrayList("AllProperties", fragment);
foreach (var property in properties)
{
var edmProperty = GetProperty("EdmProperty", property);
var columnProperty = GetProperty("ColumnProperty", property);
mappings.Add(edmProperty.Name, columnProperty.Name);
}
}
}
return mappings;
}
private ArrayList GetArrayList(string property, object instance)
{
var type = instance.GetType();
var objects = (IEnumerable)type.InvokeMember(
property,
BindingFlags.GetProperty | BindingFlags.Public | BindingFlags.Instance, null, instance, null);
var list = new ArrayList();
foreach (var o in objects)
{
list.Add(o);
}
return list;
}
private dynamic GetProperty(string property, object instance)
{
var type = instance.GetType();
return type.InvokeMember(property, BindingFlags.GetProperty | BindingFlags.Public | BindingFlags.Instance, null, instance, null);
}
}
And finally, a little something for you Linq-To-Sql lovers.
partial class MyDataContext
{
partial void OnCreated()
{
CommandTimeout = 5 * 60;
}
public void BulkInsertAll<T>(IEnumerable<T> entities)
{
entities = entities.ToArray();
string cs = Connection.ConnectionString;
var conn = new SqlConnection(cs);
conn.Open();
Type t = typeof(T);
var tableAttribute = (TableAttribute)t.GetCustomAttributes(
typeof(TableAttribute), false).Single();
var bulkCopy = new SqlBulkCopy(conn) {
DestinationTableName = tableAttribute.Name };
var properties = t.GetProperties().Where(EventTypeFilter).ToArray();
var table = new DataTable();
foreach (var property in properties)
{
Type propertyType = property.PropertyType;
if (propertyType.IsGenericType &&
propertyType.GetGenericTypeDefinition() == typeof(Nullable<>))
{
propertyType = Nullable.GetUnderlyingType(propertyType);
}
table.Columns.Add(new DataColumn(property.Name, propertyType));
}
foreach (var entity in entities)
{
table.Rows.Add(properties.Select(
property => GetPropertyValue(
property.GetValue(entity, null))).ToArray());
}
bulkCopy.WriteToServer(table);
conn.Close();
}
private bool EventTypeFilter(System.Reflection.PropertyInfo p)
{
var attribute = Attribute.GetCustomAttribute(p,
typeof (AssociationAttribute)) as AssociationAttribute;
if (attribute == null) return true;
if (attribute.IsForeignKey == false) return true;
return false;
}
private object GetPropertyValue(object o)
{
if (o == null)
return DBNull.Value;
return o;
}
}
Since you want to pivot multiple columns of data, I would first suggest unpivoting the result
, score
and grade
columns so you don't have multiple columns but you will have multiple rows.
Depending on your version of SQL Server you can use the UNPIVOT function or CROSS APPLY. The syntax to unpivot the data will be similar to:
select ratio, col, value
from GRAND_TOTALS
cross apply
(
select 'result', cast(result as varchar(10)) union all
select 'score', cast(score as varchar(10)) union all
select 'grade', grade
) c(col, value)
See SQL Fiddle with Demo. Once the data has been unpivoted, then you can apply the PIVOT function:
select ratio = col,
[current ratio], [gearing ratio], [performance ratio], total
from
(
select ratio, col, value
from GRAND_TOTALS
cross apply
(
select 'result', cast(result as varchar(10)) union all
select 'score', cast(score as varchar(10)) union all
select 'grade', grade
) c(col, value)
) d
pivot
(
max(value)
for ratio in ([current ratio], [gearing ratio], [performance ratio], total)
) piv;
See SQL Fiddle with Demo. This will give you the result:
| RATIO | CURRENT RATIO | GEARING RATIO | PERFORMANCE RATIO | TOTAL |
|--------|---------------|---------------|-------------------|-----------|
| grade | Good | Good | Satisfactory | Good |
| result | 1.29400 | 0.33840 | 0.04270 | (null) |
| score | 60.00000 | 70.00000 | 50.00000 | 180.00000 |
I've a way and work like this:
<'a href="FOLDER_PATH" target="_explorer.exe">Link Text<'/a>
To move up a directory, the quickest way would be to add an alias to ~/.bash_profile
alias ..='cd ..'
and then one would need only to type '..[return]'.
An analytic solution with only one nested query:
SELECT * FROM
(
SELECT t.*, Row_Number() OVER (ORDER BY name) MyRow FROM sometable t
)
WHERE MyRow BETWEEN 10 AND 20;
Rank()
could be substituted for Row_Number()
but might return more records than you are expecting if there are duplicate values for name.
I ran into the issue where the class of 'selected' wasn't being added to my menu item. Turns out that you can't have a NavigateUrl on it for whatever reason.
Once I removed the NavigateUrl it applied the 'selected' css class to the a tag and I was able to apply the background style with:
div.menu ul li a.static.selected
{
background-color: #bfcbd6 !important;
color: #465c71 !important;
text-decoration: none !important;
}
you can try this
class select_choice():
return x, y
a, b = test()
Use $dec = $null
From the documentation:
$null is an automatic variable that contains a NULL or empty value. You can use this variable to represent an absent or undefined value in commands and scripts.
PowerShell treats $null as an object with a value, that is, as an explicit placeholder, so you can use $null to represent an empty value in a series of values.
.Click() - Perform only click operation as like mouse click.
.Submit() - Perform Enter operation as like keyboard Enter event.
For Example. Consider a login page where it contains username and password and submit button.
On filling password if we want to login without clicking login button. we need to user .submit button on password where .click() operation does not work.[to login into application]
Brif.
driver.get("https:// anyURL");
driver.manage().window().maximize();
driver.manage().timeouts().implicitlyWait(30,TimeUnit.SECONDS);
driver.findElement(By.id("txtUserId")).sendKeys("[email protected]");
WebElement text = driver.findElement(By.id("txtPassword")); text.sendKeys("password");
Thread.sleep(1000);
text.click(); //This will not work - it will on perform click operation not submit operation
text.submit(); //This will perform submit operation has enter key
The most efficient way to do this is to use structure
to create a list that has the class "data.frame"
:
structure(list(Date = as.Date(character()), File = character(), User = character()),
class = "data.frame")
# [1] Date File User
# <0 rows> (or 0-length row.names)
To put this into perspective compared to the presently accepted answer, here's a simple benchmark:
s <- function() structure(list(Date = as.Date(character()),
File = character(),
User = character()),
class = "data.frame")
d <- function() data.frame(Date = as.Date(character()),
File = character(),
User = character(),
stringsAsFactors = FALSE)
library("microbenchmark")
microbenchmark(s(), d())
# Unit: microseconds
# expr min lq mean median uq max neval
# s() 58.503 66.5860 90.7682 82.1735 101.803 469.560 100
# d() 370.644 382.5755 523.3397 420.1025 604.654 1565.711 100
I used this code to show the dialog at the bottom of the screen:
Dialog dlg = <code to create custom dialog>;
Window window = dlg.getWindow();
WindowManager.LayoutParams wlp = window.getAttributes();
wlp.gravity = Gravity.BOTTOM;
wlp.flags &= ~WindowManager.LayoutParams.FLAG_DIM_BEHIND;
window.setAttributes(wlp);
This code also prevents android from dimming the background of the dialog, if you need it. You should be able to change the gravity parameter to move the dialog about
private void showPictureialog() {
final Dialog dialog = new Dialog(this,
android.R.style.Theme_Translucent_NoTitleBar);
// Setting dialogview
Window window = dialog.getWindow();
window.setGravity(Gravity.CENTER);
window.setLayout(LayoutParams.FILL_PARENT, LayoutParams.FILL_PARENT);
dialog.setTitle(null);
dialog.setContentView(R.layout.selectpic_dialog);
dialog.setCancelable(true);
dialog.show();
}
you can customize you dialog based on gravity and layout parameters change gravity and layout parameter on the basis of your requirenment
You could also use file_get_contents
$url_a="http://127.0.0.1/get_value.php?line=a&shift=1&tgl=2017-01-01";
$data_a=file_get_contents($url_a);
echo $data_a;
console.log(new Error);
It will show you the whole track.
In my case, I had a webpack dev server running behind.
If you are using VS2010 or later it is even easier than that
Public Property Name as String
You get the private properties and Get/Set completely for free!
see this blog post: Scott Gu's Blog
Actually what happens is when you use postfix i.e. i++, the initial value of i is used for returning rather than the incremented one. After this the value of i is increased by 1. And this happens with any statement that uses i++, i.e. first initial value of i is used in the expression and then it is incremented.
And the exact opposite happens in prefix. If you would have returned ++i, then the incremented value i.e. 11 is returned, which is because adding 1 is performed first and then it is returned.
As noted at developer site
Often you will want one Fragment to communicate with another, for example to change the content based on a user event. All Fragment-to-Fragment communication is done through the associated Activity. Two Fragments should never communicate directly.
communication between fragments should be done through the associated Activity.
Let's have the following components:
An activity hosts fragments and allow fragments communication
FragmentA first fragment which will send data
FragmentB second fragment which will receive datas from FragmentA
FragmentA's implementation is:
public class FragmentA extends Fragment
{
DataPassListener mCallback;
public interface DataPassListener{
public void passData(String data);
}
@Override
public void onAttach(Context context)
{
super.onAttach(context);
// This makes sure that the host activity has implemented the callback interface
// If not, it throws an exception
try
{
mCallback = (OnImageClickListener) context;
}
catch (ClassCastException e)
{
throw new ClassCastException(context.toString()+ " must implement OnImageClickListener");
}
}
public View onCreateView(LayoutInflater inflater, ViewGroup container,Bundle savedInstanceState)
{
// Suppose that when a button clicked second FragmentB will be inflated
// some data on FragmentA will pass FragmentB
// Button passDataButton = (Button).........
passDataButton.setOnClickListener(new OnClickListener() {
@Override
public void onClick(View v) {
if (view.getId() == R.id.passDataButton) {
mCallback.passData("Text to pass FragmentB");
}
}
});
}
}
MainActivity implementation is:
public class MainActivity extends ActionBarActivity implements DataPassListener{
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
if (findViewById(R.id.container) != null) {
if (savedInstanceState != null) {
return;
}
getFragmentManager().beginTransaction()
.add(R.id.container, new FragmentA()).commit();
}
}
@Override
public void passData(String data) {
FragmentB fragmentB = new FragmentB ();
Bundle args = new Bundle();
args.putString(FragmentB.DATA_RECEIVE, data);
fragmentB .setArguments(args);
getFragmentManager().beginTransaction()
.replace(R.id.container, fragmentB )
.commit();
}
}
FragmentB implementation is:
public class FragmentB extends Fragment{
final static String DATA_RECEIVE = "data_receive";
TextView showReceivedData;
@Override
public View onCreateView(LayoutInflater inflater, ViewGroup container,
Bundle savedInstanceState) {
View view = inflater.inflate(R.layout.fragment_B, container, false);
showReceivedData = (TextView) view.findViewById(R.id.showReceivedData);
}
@Override
public void onStart() {
super.onStart();
Bundle args = getArguments();
if (args != null) {
showReceivedData.setText(args.getString(DATA_RECEIVE));
}
}
}
I hope this will help..
To complement the other answers: if you want to reset all background properties to their initial value (which includes background-color: transparent
and background-image: none
) without explicitly specifying any value such as transparent
or none
, you can do so by writing:
background: initial;
Actually… there is! Sort of. box-shadow
defaults to color
, just like border
does.
According to http://dev.w3.org/.../#the-box-shadow
The color is the color of the shadow. If the color is absent, the used color is taken from the ‘color’ property.
In practice, you have to change the color
property and leave box-shadow
without a color:
box-shadow: 1px 2px 3px;
color: #a00;
box-shadow
at all) div {_x000D_
box-shadow: 0 0 50px;_x000D_
transition: 0.3s color;_x000D_
}_x000D_
.green {_x000D_
color: green;_x000D_
}_x000D_
.red {_x000D_
color: red;_x000D_
}_x000D_
div:hover {_x000D_
color: yellow;_x000D_
}_x000D_
_x000D_
/*demo style*/_x000D_
body {_x000D_
text-align: center;_x000D_
}_x000D_
div {_x000D_
display: inline-block;_x000D_
background: white;_x000D_
height: 100px;_x000D_
width: 100px;_x000D_
margin: 30px;_x000D_
border-radius: 50%;_x000D_
}
_x000D_
<div class="green"></div>_x000D_
<div class="red"></div>
_x000D_
The bug mentioned in the comment below has since been fixed :)
do not place *jsp or *html in root folder of webapp and images you want to display in same root folder browser cannot acess the image in WEB-INF folder
http://jsfiddle.net/adiioo7/vmfbA/
Use
document.body.innerHTML += '<div style="position:absolute;width:100%;height:100%;opacity:0.3;z-index:100;background:#000;"></div>';
instead of
document.body.innerHTML = '<div style="position:absolute;width:100%;height:100%;opacity:0.3;z-index:100;background:#000;"></div>';
Edit:-
Ideally you should use body.appendChild
method instead of changing the innerHTML
var elem = document.createElement('div');
elem.style.cssText = 'position:absolute;width:100%;height:100%;opacity:0.3;z-index:100;background:#000';
document.body.appendChild(elem);
In SQL, this problem could be solved by several methods:
select * from df1 where exists (select * from df2 where df2.user_id = df1.user_id)
union all
select * from df2 where exists (select * from df1 where df1.user_id = df2.user_id)
or join and then unpivot (possible in SQL server)
select
df1.user_id,
c.rating
from df1
inner join df2 on df2.user_i = df1.user_id
outer apply (
select df1.rating union all
select df2.rating
) as c
Second one could be written in pandas with something like:
>>> df1 = pd.DataFrame({"user_id":[1,2,3], "rating":[10, 15, 20]})
>>> df2 = pd.DataFrame({"user_id":[3,4,5], "rating":[30, 35, 40]})
>>>
>>> df4 = df[['user_id', 'rating_1']].rename(columns={'rating_1':'rating'})
>>> df = pd.merge(df1, df2, on='user_id', suffixes=['_1', '_2'])
>>> df3 = df[['user_id', 'rating_1']].rename(columns={'rating_1':'rating'})
>>> df4 = df[['user_id', 'rating_2']].rename(columns={'rating_2':'rating'})
>>> pd.concat([df3, df4], axis=0)
user_id rating
0 3 20
0 3 30
All the test cases in this post are flawed as they access the same file for each method tested. So disk caching kicks in which tests 2 and 3 benefit from. To prove my point I took test case provided by GHAD and changed the order of enumeration and below are the results.
Looking at result I think File.length() is the winner really.
Order of test is the order of output. You can even see the time taken on my machine varied between executions but File.Length() when not first, and incurring first disk access won.
---
LENGTH sum: 1163351, per Iteration: 4653.404
CHANNEL sum: 1094598, per Iteration: 4378.392
URL sum: 739691, per Iteration: 2958.764
---
CHANNEL sum: 845804, per Iteration: 3383.216
URL sum: 531334, per Iteration: 2125.336
LENGTH sum: 318413, per Iteration: 1273.652
---
URL sum: 137368, per Iteration: 549.472
LENGTH sum: 18677, per Iteration: 74.708
CHANNEL sum: 142125, per Iteration: 568.5
If you want to merge changes in SubBranch to MainBranch
git checkout MainBranch
git merge SubBranch
When you use the -m
option putty does not allocate a tty, it runs the command and quits. If you want to run an interactive script (such as a sql client), you need to tell it to allocate a tty with -t
, see 3.8.3.12 -t and -T: control pseudo-terminal allocation
. You'll avoid keeping a script on the server, as well as having to invoke it once you're connected.
Here's what I'm using to connect to mysql from a batch file:
#mysql.bat
start putty -t -load "sessionname" -l username -pw password -m c:\mysql.sh
#mysql.sh
mysql -h localhost -u username --password="foo" mydb
https://superuser.com/questions/587629/putty-run-a-remote-command-after-login-keep-the-shell-running
You can modify your REST project, so as to produce the needed static documents (html, pdf etc) upon building the project.
If you have a Java Maven project you can use the pom snippet below. It uses a series of plugins to generate a pdf and an html documentation (of the project's REST resources).
Please be aware that the order of execution matters, since the output of one plugin, becomes the input to the next:
<plugin>
<groupId>com.github.kongchen</groupId>
<artifactId>swagger-maven-plugin</artifactId>
<version>3.1.3</version>
<configuration>
<apiSources>
<apiSource>
<springmvc>false</springmvc>
<locations>some.package</locations>
<basePath>/api</basePath>
<info>
<title>Put your REST service's name here</title>
<description>Add some description</description>
<version>v1</version>
</info>
<swaggerDirectory>${project.build.directory}/api</swaggerDirectory>
<attachSwaggerArtifact>true</attachSwaggerArtifact>
</apiSource>
</apiSources>
</configuration>
<executions>
<execution>
<phase>${phase.generate-documentation}</phase>
<!-- fx process-classes phase -->
<goals>
<goal>generate</goal>
</goals>
</execution>
</executions>
</plugin>
<plugin>
<groupId>io.github.robwin</groupId>
<artifactId>swagger2markup-maven-plugin</artifactId>
<version>0.9.3</version>
<configuration>
<inputDirectory>${project.build.directory}/api</inputDirectory>
<outputDirectory>${generated.asciidoc.directory}</outputDirectory>
<!-- specify location to place asciidoc files -->
<markupLanguage>asciidoc</markupLanguage>
</configuration>
<executions>
<execution>
<phase>${phase.generate-documentation}</phase>
<goals>
<goal>process-swagger</goal>
</goals>
</execution>
</executions>
</plugin>
<plugin>
<groupId>org.asciidoctor</groupId>
<artifactId>asciidoctor-maven-plugin</artifactId>
<version>1.5.3</version>
<dependencies>
<dependency>
<groupId>org.asciidoctor</groupId>
<artifactId>asciidoctorj-pdf</artifactId>
<version>1.5.0-alpha.11</version>
</dependency>
<dependency>
<groupId>org.jruby</groupId>
<artifactId>jruby-complete</artifactId>
<version>1.7.21</version>
</dependency>
</dependencies>
<configuration>
<sourceDirectory>${asciidoctor.input.directory}</sourceDirectory>
<!-- You will need to create an .adoc file. This is the input to this plugin -->
<sourceDocumentName>swagger.adoc</sourceDocumentName>
<attributes>
<doctype>book</doctype>
<toc>left</toc>
<toclevels>2</toclevels>
<generated>${generated.asciidoc.directory}</generated>
<!-- this path is referenced in swagger.adoc file. The given file will simply
point to the previously create adoc files/assemble them. -->
</attributes>
</configuration>
<executions>
<execution>
<id>asciidoc-to-html</id>
<phase>${phase.generate-documentation}</phase>
<goals>
<goal>process-asciidoc</goal>
</goals>
<configuration>
<backend>html5</backend>
<outputDirectory>${generated.html.directory}</outputDirectory>
<!-- specify location to place html file -->
</configuration>
</execution>
<execution>
<id>asciidoc-to-pdf</id>
<phase>${phase.generate-documentation}</phase>
<goals>
<goal>process-asciidoc</goal>
</goals>
<configuration>
<backend>pdf</backend>
<outputDirectory>${generated.pdf.directory}</outputDirectory>
<!-- specify location to place pdf file -->
</configuration>
</execution>
</executions>
</plugin>
The asciidoctor plugin assumes the existence of an .adoc file to work on. You can create one that simply collects the ones that were created by the swagger2markup plugin:
include::{generated}/overview.adoc[]
include::{generated}/paths.adoc[]
include::{generated}/definitions.adoc[]
If you want your generated html document to become part of your war file you have to make sure that it is present on the top level - static files in the WEB-INF folder will not be served. You can do this in the maven-war-plugin:
<plugin>
<artifactId>maven-war-plugin</artifactId>
<configuration>
<warSourceDirectory>WebContent</warSourceDirectory>
<failOnMissingWebXml>false</failOnMissingWebXml>
<webResources>
<resource>
<directory>${generated.html.directory}</directory>
<!-- Add swagger.pdf to WAR file, so as to make it available as static content. -->
</resource>
<resource>
<directory>${generated.pdf.directory}</directory>
<!-- Add swagger.html to WAR file, so as to make it available as static content. -->
</resource>
</webResources>
</configuration>
</plugin>
The war plugin works on the generated documentation - as such, you must make sure that those plugins have been executed in an earlier phase.
Swift 4
import UIKit
import AudioToolbox
class ViewController: UIViewController{
var sounds : [SystemSoundID] = [1, 2, 3, 4, 5, 6, 7]
override func viewDidLoad() {
super.viewDidLoad()
for index in 0...sounds.count-1 {
let fileName : String = "note\(sounds[index])"
if let soundURL = Bundle.main.url(forResource: fileName, withExtension: "wav") {
AudioServicesCreateSystemSoundID(soundURL as CFURL, &sounds[index])
}
}
}
@IBAction func notePressed(_ sender: UIButton) {
switch sender.tag {
case 1:
AudioServicesPlaySystemSound(sounds[0])
case 2:
AudioServicesPlaySystemSound(sounds[1])
case 3:
AudioServicesPlaySystemSound(sounds[2])
case 4:
AudioServicesPlaySystemSound(sounds[3])
case 5:
AudioServicesPlaySystemSound(sounds[4])
case 6:
AudioServicesPlaySystemSound(sounds[5])
default:
AudioServicesPlaySystemSound(sounds[6])
}
}
}
or
import UIKit
import AVFoundation
class ViewController: UIViewController, AVAudioPlayerDelegate{
var audioPlayer : AVAudioPlayer!
override func viewDidLoad() {
super.viewDidLoad()
}
@IBAction func notePressed(_ sender: UIButton) {
let soundURL = Bundle.main.url(forResource: "note\(sender.tag)", withExtension: "wav")
do {
audioPlayer = try AVAudioPlayer(contentsOf: soundURL!)
}
catch {
print(error)
}
audioPlayer.play()
}
}
Check this:
.hero1
{
width: 90%;
height: 200px;
margin: auto;
background-color: #e15915;
}
.hero2
{
width: 0px;
height: 0px;
border-style: solid;
margin: auto;
border-width: 90px 58px 0 58px;
border-color: #e15915 transparent transparent transparent;
line-height: 0px;
_border-color: #e15915 #000000 #000000 #000000;
_filter: progid:DXImageTransform.Microsoft.Chroma(color='#000000')
}
You can do it using just css without using any jQiuery.
<a class="tooltips">
Hover Me
<span>My Tooltip Text</span>
</a>
<style>
a.tooltips {
position: relative;
display: inline;
}
a.tooltips span {
position: absolute;
width: 200px;
color: #FFFFFF;
background: #000000;
height: 30px;
line-height: 30px;
text-align: center;
visibility: hidden;
border-radius: 6px;
}
a.tooltips span:after {
content: '';
position: absolute;
top: 100%;
left: 35%;
margin-left: -8px;
width: 0;
height: 0;
border-top: 8px solid #000000;
border-right: 8px solid transparent;
border-left: 8px solid transparent;
}
a:hover.tooltips span {
visibility: visible;
opacity: 0.8;
bottom: 30px;
left: 50%;
margin-left: -76px;
z-index: 999;
}
</style>
This is relatively simple if you use pylab (included with matplotlib) instead of matplotlib directly. Start off with a list of filenames and legend names, like [ ('name of file 1', 'label 1'), ('name of file 2', 'label 2'), ...]. Then you can use something like the following:
import pylab
datalist = [ ( pylab.loadtxt(filename), label ) for filename, label in list_of_files ]
for data, label in datalist:
pylab.plot( data[:,0], data[:,1], label=label )
pylab.legend()
pylab.title("Title of Plot")
pylab.xlabel("X Axis Label")
pylab.ylabel("Y Axis Label")
You also might want to add something like fmt='o' to the plot command, in order to change from a line to points. By default, matplotlib with pylab plots onto the same figure without clearing it, so you can just run the plot command multiple times.
There may be many ways.. But I implemented by following two ways
Given example is of maven project.
1. Using Dockerfile in maven project
Use the following file structure:
Demo
+-- src
| +-- main
| ¦ +-- java
| ¦ +-- org
| ¦ +-- demo
| ¦ +-- Application.java
| ¦
| +-- test
|
+---- Dockerfile
+---- pom.xml
And update the Dockerfile as:
FROM java:8
EXPOSE 8080
ADD /target/demo.jar demo.jar
ENTRYPOINT ["java","-jar","demo.jar"]
Navigate to the project folder and type following command you will be ab le to create image and run that image:
$ mvn clean
$ mvn install
$ docker build -f Dockerfile -t springdemo .
$ docker run -p 8080:8080 -t springdemo
Get video at Spring Boot with Docker
2. Using Maven plugins
Add given maven plugin in pom.xml
<plugin>
<groupId>com.spotify</groupId>
<artifactId>docker-maven-plugin</artifactId>
<version>0.4.5</version>
<configuration>
<imageName>springdocker</imageName>
<baseImage>java</baseImage>
<entryPoint>["java", "-jar", "/${project.build.finalName}.jar"]</entryPoint>
<resources>
<resource>
<targetPath>/</targetPath>
<directory>${project.build.directory}</directory>
<include>${project.build.finalName}.jar</include>
</resource>
</resources>
</configuration>
</plugin>
Navigate to the project folder and type following command you will be able to create image and run that image:
$ mvn clean package docker:build
$ docker images
$ docker run -p 8080:8080 -t <image name>
In first example we are creating Dockerfile and providing base image and adding jar an so, after doing that we will run docker command to build an image with specific name and then run that image..
Whereas in second example we are using maven plugin in which we providing baseImage
and imageName
so we don't need to create Dockerfile here.. after packaging maven project we will get the docker image and we just need to run that image..
I hope you have found a good solution. I had the same problem, and the way I worked around it is probably not the best but it is working now.
it involves creating a linked server and using dynamic sql - not the best, but if anyone can suggest something better, please comment/answer.
declare @sql nvarchar(max)
DECLARE @DB_SPACE TABLE (
[DatabaseName] NVARCHAR(128) NOT NULL,
[FILEID] [smallint] NOT NULL,
[FILE_SIZE_MB] INT NOT NULL DEFAULT (0),
[SPACE_USED_MB] INT NULL DEFAULT (0),
[FREE_SPACE_MB] INT NULL DEFAULT (0),
[LOGICALNAME] SYSNAME NOT NULL,
[DRIVE] NCHAR(1) NOT NULL,
[FILENAME] NVARCHAR(260) NOT NULL,
[FILE_TYPE] NVARCHAR(260) NOT NULL,
[THE_AUTOGROWTH_IN_KB] INT NOT NULL DEFAULT(0)
,filegroup VARCHAR(128)
,maxsize VARCHAR(25)
PRIMARY KEY CLUSTERED ([DatabaseName] ,[FILEID] )
)
SELECT @SQL ='SELECT [DatabaseName],
[FILEID],
[FILE_SIZE_MB],
[SPACE_USED_MB],
[FREE_SPACE_MB],
[LOGICALNAME],
[DRIVE],
[FILENAME],
[FILE_TYPE],
[THE_AUTOGROWTH_IN_KB]
,filegroup
,maxsize FROM OPENQUERY('+ QUOTENAME('THE_MONITOR') + ','''+ ' EXEC MASTER.DBO.monitoring_database_details ' +''')'
exec sp_executesql @sql
INSERT INTO @DB_SPACE(
[DatabaseName],
[FILEID],
[FILE_SIZE_MB],
[SPACE_USED_MB],
[FREE_SPACE_MB],
[LOGICALNAME],
[DRIVE],
[FILENAME],
[FILE_TYPE],
THE_AUTOGROWTH_IN_KB,
[filegroup],
maxsize
)
EXEC SP_EXECUTESQL @SQL
this is working for me now. I can guarantee the number of columns and type of columns returned by the stored procedure are the same as in this table, simply because I return the same table from the stored procedure.
thanks and regards marcelo
Here is PHP simple DOM HTML Class two line code to get page META details.
$html = file_get_html($link);
$meat_description = $html->find('head meta[name=description]', 0)->content;
$meat_keywords = $html->find('head meta[name=keywords]', 0)->content;
You may also consider the following solution:
let sum = options.set0.concat(options.set1);
const codeHTML = '<ol>' + sum.reduce((html, item) => {
return html + "<li>" + item + "</li>";
}, "") + '</ol>';
document.querySelector("#list").innerHTML = codeHTML;
A much easier way is to go to Data and select Group or Subtotal. Instant collapsible rows without messing with pivot tables or VBA.
Use DATE_ADD function
DATE_ADD(datecolumn, INTERVAL 30 MINUTE);
If one wants to support Generics (in an extension method) this is the pattern...
public static List<T> Deserialize<T>(this string SerializedJSONString)
{
var stuff = JsonConvert.DeserializeObject<List<T>>(SerializedJSONString);
return stuff;
}
It is used like this:
var rc = new MyHttpClient(URL);
//This response is the JSON Array (see posts above)
var response = rc.SendRequest();
var data = response.Deserialize<MyClassType>();
MyClassType looks like this (must match name value pairs of JSON array)
[JsonObject(MemberSerialization = MemberSerialization.OptIn)]
public class MyClassType
{
[JsonProperty(PropertyName = "Id")]
public string Id { get; set; }
[JsonProperty(PropertyName = "Name")]
public string Name { get; set; }
[JsonProperty(PropertyName = "Description")]
public string Description { get; set; }
[JsonProperty(PropertyName = "Manager")]
public string Manager { get; set; }
[JsonProperty(PropertyName = "LastUpdate")]
public DateTime LastUpdate { get; set; }
}
Use NUGET to download Newtonsoft.Json add a reference where needed...
using Newtonsoft.Json;
<script type="text/javascript" language="javascript">
function createDiv()
{
var divTag = document.createElement("div");
divTag.innerHTML = "Div tag created using Javascript DOM dynamically";
document.body.appendChild(divTag);
}
</script>
if you are want session timeout for website than remove
<authentication mode="Forms">
<forms timeout="50"/>
</authentication>
tag from web.config file.
Quote from Android Docs:
If you need to format your strings using
String.format(String, Object...)
, then you can do so by putting your format arguments in the string resource. For example, with the following resource:<string name="welcome_messages">Hello, %1$s! You have %2$d new messages.</string>
In this example, the format string has two arguments:
%1$s
is a string and%2$d
is a decimal number. You can format the string with arguments from your application like this:Resources res = getResources(); String text = String.format(res.getString(R.string.welcome_messages), username, mailCount);
int i = 25;
NSString *myString = [NSString stringWithFormat:@"%d",i];
This is one of many ways.
SELECT productid FROM product WHERE purchase_date > sysdate-30
It looks like you're building DOM elements from strings. You just need to add some quotes around result.name:
'<input type="button" onClick="gotoNode(\'' + result.name + '\')" />'
You should really be doing this with proper DOM methods though.
var inputElement = document.createElement('input');
inputElement.type = "button"
inputElement.addEventListener('click', function(){
gotoNode(result.name);
});
?document.body.appendChild(inputElement);?
Just be aware that if this is a loop or something, result
will change before the event fires and you'd need to create an additional scope bubble to shadow the changing variable.
I'd stay with two different interfaces.
You said that 'I want to group my service executors under a common interface... It also seems overkill creating two separate interfaces for the two different service calls... A class will only implement one of these interfaces'
It's not clear what is the reason to have a single interface then. If you want to use it as a marker, you can just exploit annotations instead.
Another point is that there is a possible case that your requirements change and method(s) with another signature appears at the interface. Of course it's possible to use Adapter pattern then but it would be rather strange to see that particular class implements interface with, say, three methods where two of them trow UnsupportedOperationException. It's possible that the forth method appears etc.
I suspect Steven A. Lowe's rolled up newspaper therapy is required for the designer of the original data structure.
As an aside, GUIDs as a primary key can be a performance hog. I wouldn't recommend it.
If you are using lodash, its even simpler with takeRight.
_.takeRight(arr, 5);
typename
and class
are interchangeable in the basic case of specifying a template:
template<class T>
class Foo
{
};
and
template<typename T>
class Foo
{
};
are equivalent.
Having said that, there are specific cases where there is a difference between typename
and class
.
The first one is in the case of dependent types. typename
is used to declare when you are referencing a nested type that depends on another template parameter, such as the typedef
in this example:
template<typename param_t>
class Foo
{
typedef typename param_t::baz sub_t;
};
The second one you actually show in your question, though you might not realize it:
template < template < typename, typename > class Container, typename Type >
When specifying a template template, the class
keyword MUST be used as above -- it is not interchangeable with typename
in this case (note: since C++17 both keywords are allowed in this case).
You also must use class
when explicitly instantiating a template:
template class Foo<int>;
I'm sure that there are other cases that I've missed, but the bottom line is: these two keywords are not equivalent, and these are some common cases where you need to use one or the other.
For me the answer of @Dane White is OK, first I did not like using Runnable
but I could not find any alternatives.
Here another implementation I preferred more:
public class OptionalConsumer<T> {
private Optional<T> optional;
private OptionalConsumer(Optional<T> optional) {
this.optional = optional;
}
public static <T> OptionalConsumer<T> of(Optional<T> optional) {
return new OptionalConsumer<>(optional);
}
public OptionalConsumer<T> ifPresent(Consumer<T> c) {
optional.ifPresent(c);
return this;
}
public OptionalConsumer<T> ifNotPresent(Runnable r) {
if (!optional.isPresent()) {
r.run();
}
return this;
}
}
Then:
Optional<Any> o = Optional.of(...);
OptionalConsumer.of(o).ifPresent(s -> System.out.println("isPresent " + s))
.ifNotPresent(() -> System.out.println("! isPresent"));
Update 1:
the above solution for the traditional way of development when you have the value and want to process it but what if I want to define the functionality and the execution will be then, check below enhancement;
public class OptionalConsumer<T> implements Consumer<Optional<T>> {
private final Consumer<T> c;
private final Runnable r;
public OptionalConsumer(Consumer<T> c, Runnable r) {
super();
this.c = c;
this.r = r;
}
public static <T> OptionalConsumer<T> of(Consumer<T> c, Runnable r) {
return new OptionalConsumer(c, r);
}
@Override
public void accept(Optional<T> t) {
if (t.isPresent()) {
c.accept(t.get());
}
else {
r.run();
}
}
Then could be used as:
Consumer<Optional<Integer>> c = OptionalConsumer.of(
System.out::println,
() -> System.out.println("Not fit")
);
IntStream.range(0, 100)
.boxed()
.map(i -> Optional.of(i)
.filter(j -> j % 2 == 0))
.forEach(c);
In this new code you have 3 things:
By the way, now its name is more descriptive it is actually Consumer<Optional<?>>
Did you know that JavaScript has it's built-in methods and libs to create forms and submit them?
I am seeing a lot of replies here all asking to use a 3rd party library which I think is an overkill.
I would do the following in pure Javascript:
<script>
function launchMyForm()
{
var myForm = document.createElement("FORM");
myForm.setAttribute("id","TestForm");
document.body.appendChild(myForm);
// this will create a new FORM which is mapped to the Java Object of myForm, with an id of TestForm. Equivalent to: <form id="TestForm"></form>
var myInput = document.createElement("INPUT");
myInput.setAttribute("id","MyInput");
myInput.setAttribute("type","text");
myInput.setAttribute("value","Heider");
document.getElementById("TestForm").appendChild(myInput);
// This will create an INPUT equivalent to: <INPUT id="MyInput" type="text" value="Heider" /> and then assign it to be inside the TestForm tags.
}
</script>
This way (A) you don't need to rely on 3rd parties to do the job. (B) It's all built-in to all browsers, (C) faster, (D) it works, feel free to try it out.
I hope this helps. H
Use nohup
if your background job takes a long time to finish or you just use SecureCRT or something like it login the server.
Redirect the stdout and stderr to /dev/null
to ignore the output.
nohup /path/to/your/script.sh > /dev/null 2>&1 &
Spring annotations will work fine if you remove enctype="multipart/form-data"
.
@RequestParam(value="txtEmail", required=false)
You can even get the parameters from the request
object .
request.getParameter(paramName);
Use a form in case the number of attributes are large. It will be convenient. Tutorial to get you started.
Configure the Multi-part resolver if you want to receive enctype="multipart/form-data"
.
<bean id="multipartResolver"
class="org.springframework.web.multipart.commons.CommonsMultipartResolver">
<property name="maxUploadSize" value="250000"/>
</bean>
Refer the Spring documentation.
The instructions by peter_budo worked perfectly. I had to add the jars under /Library/Java/JavaVirtualMachines/JDK 1.7.0 Developer Preview.jdk/Contents/Home/jre/lib/ to my IntelliJ project libraries. Now it works like a charm. Note that I didn't need my IDE itself to run under 1.7; rather, I only needed to be able to compile and run against 1.7. I'll most likely continue to use Apple's JRE for running the IDE since it's probably more stable with respect to graphics routines (Swing, AWT). Like the OP, I was really keen on testing out the new NIO2 API. Looking good so far. Thanks, Peter.
JavaScript only has a Number type that stores floating point values.
There is no int.
Edit:
If you want to format the number as a string with two digits after the decimal point use:
(4).toFixed(2)
Console.WriteLine(string.Join<TYPE>("\n", someObjectList));