In Swift 5:

label.textRect(forBounds: label.bounds, limitedToNumberOfLines: 1)

btw, the value of limitedToNumberOfLines depends on your label's text lines you want.

Swift 5

you need to use UINib method to register cell in viewDidLoad

override func viewDidLoad() 
{
    super.viewDidLoad()
    // Do any additional setup after loading the view.

    //register table view cell        
    tableView.register(UINib.init(nibName: "CustomTableViewCell", bundle: nil), forCellReuseIdentifier: "CustomTableViewCell")
}

For Swift 3 and XCode 8, this worked. Follow below steps to achieve this:-

{
    let layout: UICollectionViewFlowLayout = UICollectionViewFlowLayout()
    let width = UIScreen.main.bounds.width
    layout.sectionInset = UIEdgeInsets(top: 0, left: 5, bottom: 0, right: 5)
    layout.itemSize = CGSize(width: width / 2, height: width / 2)
    layout.minimumInteritemSpacing = 0
    layout.minimumLineSpacing = 0
    collectionView!.collectionViewLayout = layout
}

Place this code into viewDidLoad() function.

Put the default rowHeight in viewDidLoad or awakeFromNib. As pointed out by Martin R., you cannot call cellForRowAtIndexPath from heightForRowAtIndexPath

self.tableView.rowHeight = 44.0

Swift 5, XCode 11 storyboard way. I think this works for iOS 9 and higher. You want for example "Description" label to get the dynamic height, follow the steps:

1) Select description label -> Go to Attributes Inspector (pencil icon), set: Lines: 0 Line Break: Word Wrap

2) Select your UILabel from storyboard and go to Size Inspector (ruler icon), 3) Go down to "Content Compression Resistance Priority to 1 for all other UIView (lables, buttons, imageview, etc) components that are interacting with your label.

For example, I have UIImageView, Title Label, and Description Label vertically in my view. I set Content Compression Resistance Priority to UIImageView and title label to 1 and for description label to 750. This will make a description label to take as much as needed height.

Here's the shortest way to merge two arrays.

 var array1 = [1,2,3]
 let array2 = [4,5,6]

Concatenate/merge them

array1 += array2
New value of array1 is [1,2,3,4,5,6]

I was also facing the same issue, what I did wrong was that I'd forgot to add

tableView.delegate = self    
tableView.dataSource = self

in the viewDidLoad() {} method. This could be one reason of self.tableView.reloadData() not working.

In Swift 3.0

let screenSize = UIScreen.main.bounds
let screenWidth = screenSize.width
let screenHeight = screenSize.height

In older swift: Do something like this:

let screenSize: CGRect = UIScreen.mainScreen().bounds

then you can access the width and height like this:

let screenWidth = screenSize.width
let screenHeight = screenSize.height

if you want 75% of your screen's width you can go:

let screenWidth = screenSize.width * 0.75

Swift 4.0

// Screen width.
public var screenWidth: CGFloat {
    return UIScreen.main.bounds.width
}

// Screen height.
public var screenHeight: CGFloat {
    return UIScreen.main.bounds.height
}

In Swift 5.0

let screenSize: CGRect = UIScreen.main.bounds

Swift 2:

As OP asked, only adjust the size, not setting it as a system bold font or whatever:

func tableView(tableView: UITableView, willDisplayHeaderView view: UIView, forSection section: Int) {
        if let headerView = view as? UITableViewHeaderFooterView, textLabel = headerView.textLabel {

            let newSize = CGFloat(16)
            let fontName = textLabel.font.fontName
            textLabel.font = UIFont(name: fontName, size: newSize)
        }
    }

The following worked for me in with iOS 13.6 and Xcode 11.6 with a UITableViewController that was embedded in a UINavigationController:

override func tableView(_ tableView: UITableView, viewForHeaderInSection section: Int) -> UIView? {
    nil
}

override func tableView(_ tableView: UITableView, heightForHeaderInSection section: Int) -> CGFloat {
    .zero
}

No other trickery needed. The override keywords aren't needed when not using a UITableViewController (i.e. when just implemented the UITableViewDelegate methods). Of course if the goal was to hide just the first section's header, then this logic could be wrapped in a conditional as such:

override func tableView(_ tableView: UITableView, viewForHeaderInSection section: Int) -> UIView? {
    if section == 0 {
        return nil
    } else {
        // Return some other view...
    }
}

override func tableView(_ tableView: UITableView, heightForHeaderInSection section: Int) -> CGFloat {
    if section == 0 {
        return .zero
    } else {
        // Return some other height...
    }
}

Change your TableView Style:

self.tableview = [[UITableView alloc] initwithFrame:frame style:UITableViewStyleGrouped];

As per apple documentation for UITableView:

UITableViewStylePlain- A plain table view. Any section headers or footers are displayed as inline separators and float when the table view is scrolled.

UITableViewStyleGrouped- A table view whose sections present distinct groups of rows. The section headers and footers do not float.

Hope this small change will help you ..

I have problem with the accepted answer, so I updated it, this is working for me:

.h

@interface MaxSpacingCollectionViewFlowLayout : UICollectionViewFlowLayout
@property (nonatomic,assign) CGFloat maxCellSpacing;
@end

.m

@implementation MaxSpacingCollectionViewFlowLayout

- (NSArray *) layoutAttributesForElementsInRect:(CGRect)rect {
    NSArray *attributes = [super layoutAttributesForElementsInRect:rect];

    if (attributes.count <= 0) return attributes;

    CGFloat firstCellOriginX = ((UICollectionViewLayoutAttributes *)attributes[0]).frame.origin.x;

    for(int i = 1; i < attributes.count; i++) {
        UICollectionViewLayoutAttributes *currentLayoutAttributes = attributes[i];
        if (currentLayoutAttributes.frame.origin.x == firstCellOriginX) { // The first cell of a new row
            continue;
        }

        UICollectionViewLayoutAttributes *prevLayoutAttributes = attributes[i - 1];
        CGFloat prevOriginMaxX = CGRectGetMaxX(prevLayoutAttributes.frame);
        if ((currentLayoutAttributes.frame.origin.x - prevOriginMaxX) > self.maxCellSpacing) {
            CGRect frame = currentLayoutAttributes.frame;
            frame.origin.x = prevOriginMaxX + self.maxCellSpacing;
            currentLayoutAttributes.frame = frame;
        }
    }
    return attributes;
}

@end

#import "ViewController.h"

@interface ViewController ()

{

    NSMutableArray *name;

}

@end


- (void)viewDidLoad 

{

    [super viewDidLoad];
    name=[[NSMutableArray alloc]init];
    [name addObject:@"ronak"];
    [name addObject:@"vibha"];
    [name addObject:@"shivani"];
    [name addObject:@"nidhi"];
    [name addObject:@"firdosh"];
    [name addObject:@"himani"];

    _tableview_outlet.delegate = self;
    _tableview_outlet.dataSource = self;

}


- (NSInteger)tableView:(UITableView *)tableView numberOfRowsInSection:(NSInteger)section

{

return [name count];

}


- (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath

{

    static NSString *simpleTableIdentifier = @"cell";

    UITableViewCell *cell = [tableView       dequeueReusableCellWithIdentifier:simpleTableIdentifier];

    if (cell == nil) {
        cell = [[UITableViewCell alloc] initWithStyle:UITableViewCellStyleDefault reuseIdentifier:simpleTableIdentifier];
    }

    cell.textLabel.text = [name objectAtIndex:indexPath.row];
    return cell;
}

Xamarin.iOS

NSMutableParagraphStyle paragraphStyle = new NSMutableParagraphStyle();
paragraphStyle.HyphenationFactor = 1.0f;
var hyphenAttribute = new UIStringAttributes();
hyphenAttribute.ParagraphStyle = paragraphStyle;
var attributedString = new NSAttributedString(str: name, attributes: hyphenAttribute);

If you programatically set the tableHeaderView, then just set it inside viewDidLayoutSubviews.

    override func viewDidLayoutSubviews() {
        super.viewDidLayoutSubviews()
        setupTableViewHeader()
    }

    private func setupTableViewHeader() {
        // Something you do to set it up programatically...
        tableView.tableHeaderView = MyHeaderView.instanceFromNib() 
    }

If you didn't set it programatically, you need to do similar to what @Kris answered based on this link

    override func viewDidLayoutSubviews() {
        super.viewDidLayoutSubviews()
        sizeHeaderToFit()
    }

    private func sizeHeaderToFit() {
        if let headerView = tableView.tableHeaderView {
            headerView.setNeedsLayout()
            headerView.layoutIfNeeded()

            let height = headerView.systemLayoutSizeFitting(UIView.layoutFittingCompressedSize).height
            var frame = headerView.frame
            frame.size.height = height
            headerView.frame = frame

            tableView.tableHeaderView = headerView
        }
    }

- (void)viewDidLoad
{
   [self.tableView setSeparatorColor:[UIColor myColor]];
}

I hope that helps - you'll need the self. to access it, remember.

Swift 4.2

tableView.separatorColor = UIColor.red

This change worked for me:

// The size returned by CGImageGetWidth(imgRef) & CGImageGetHeight(imgRef) is incorrect as it doesn't respect the image orientation!
// CGImageRef imgRef = [image CGImage];
// CGFloat width = CGImageGetWidth(imgRef);
// CGFloat height = CGImageGetHeight(imgRef);
//
// This returns the actual width and height of the photo (and hence solves the problem
CGFloat width = image.size.width; 
CGFloat height = image.size.height;
CGRect bounds = CGRectMake(0, 0, width, height);

Here is a Swift extension to UIImage that rotates the image by any arbitrary angle. Use it like this: let rotatedImage = image.rotated(byDegrees: degree). I used the Objective-C code in one of the other answers and removed a few lines that we incorrect (rotated box stuff) and turned it into an extension for UIImage.

extension UIImage {

func rotate(byDegrees degree: Double) -> UIImage {
    let radians = CGFloat(degree*M_PI)/180.0 as CGFloat
    let rotatedSize = self.size
    let scale = UIScreen.mainScreen().scale
    UIGraphicsBeginImageContextWithOptions(rotatedSize, false, scale)
    let bitmap = UIGraphicsGetCurrentContext()
    CGContextTranslateCTM(bitmap, rotatedSize.width / 2, rotatedSize.height / 2);
    CGContextRotateCTM(bitmap, radians);
    CGContextScaleCTM(bitmap, 1.0, -1.0);
    CGContextDrawImage(bitmap, CGRectMake(-self.size.width / 2, -self.size.height / 2 , self.size.width, self.size.height), self.CGImage );
    let newImage = UIGraphicsGetImageFromCurrentImageContext()

    return newImage
}
}

As others have said, CGFloat is a float on 32-bit systems and a double on 64-bit systems. However, the decision to do that was inherited from OS X, where it was made based on the performance characteristics of early PowerPC CPUs. In other words, you should not think that float is for 32-bit CPUs and double is for 64-bit CPUs. (I believe, Apple's ARM processors were able to process doubles long before they went 64-bit.) The main performance hit of using doubles is that they use twice the memory and therefore might be slower if you are doing a lot of floating point operations.

#define FONT_SIZE 14.0f
#define CELL_CONTENT_WIDTH 300.0f
#define CELL_CONTENT_MARGIN 10.0f

- (CGFloat)tableView:(UITableView *)tableView heightForRowAtIndexPath:(NSIndexPath      *)indexPath;
{
   /// Here you can set also height according to your section and row
   if(indexPath.section==0 && indexPath.row==0)
   {
     text=@"pass here your dynamic data";

     CGSize constraint = CGSizeMake(CELL_CONTENT_WIDTH - (CELL_CONTENT_MARGIN * 2), 20000.0f);

     CGSize size = [text sizeWithFont:[UIFont systemFontOfSize:FONT_SIZE]      constrainedToSize:constraint lineBreakMode:UILineBreakModeWordWrap];

     CGFloat height = MAX(size.height, 44.0f);

     return height + (CELL_CONTENT_MARGIN * 2);
   }
   else
   {
      return 44;
   }
}

- (UITableViewCell *)tableView:(UITableView *)tv cellForRowAtIndexPath:(NSIndexPath *)indexPath
{
    UITableViewCell *cell;
    UILabel *label = nil;

    cell = [tv dequeueReusableCellWithIdentifier:@"Cell"];
    if (cell == nil)
    {
       cell = [[UITableViewCell alloc] initWithFrame:CGRectZero reuseIdentifier:@"Cell"];
    }
    ********Here you can set also height according to your section and row*********
    if(indexPath.section==0 && indexPath.row==0)
    {
        label = [[UILabel alloc] initWithFrame:CGRectZero];
        [label setLineBreakMode:UILineBreakModeWordWrap];
        [label setMinimumFontSize:FONT_SIZE];
        [label setNumberOfLines:0];
        label.backgroundColor=[UIColor clearColor];
        [label setFont:[UIFont systemFontOfSize:FONT_SIZE]];
        [label setTag:1];

        // NSString *text1 =[NSString stringWithFormat:@"%@",text];

        CGSize constraint = CGSizeMake(CELL_CONTENT_WIDTH - (CELL_CONTENT_MARGIN * 2), 20000.0f);

        CGSize size = [text sizeWithFont:[UIFont systemFontOfSize:FONT_SIZE] constrainedToSize:constraint lineBreakMode:UILineBreakModeWordWrap];

        if (!label)
        label = (UILabel*)[cell viewWithTag:1];


        label.text=[NSString stringWithFormat:@"%@",text];
        [label setFrame:CGRectMake(CELL_CONTENT_MARGIN, CELL_CONTENT_MARGIN, CELL_CONTENT_WIDTH          - (CELL_CONTENT_MARGIN * 2), MAX(size.height, 44.0f))];
        [cell.contentView addSubview:label];
    }
return cell;
}

In this class above @Repository just placed one more annotation @Transactional it will work. If it works reply back(Y/N):

@Repository
@Transactional
public class StudentDAOImpl implements StudentDAO

I got the same issue when adding @angular/flex-layout to my Angular 8 project now with

`npm install @angular/flex-layout --save`.

This since now that command installed the major 9th version of the flex-layout package. Instead of upgrading everything else to the last version, I solved it by installing the last 8th major version of the package instead.

 npm install @angular/[email protected] --save

I'm afraid this isn't possible with plain CSS, and won't be possible to make completely cross-browser compatible.

However, using a jQuery plugin, you could style the dropdown:

https://www.filamentgroup.com/lab/jquery-ui-selectmenu-an-aria-accessible-plugin-for-styling-a-html-select.html

This plugin hides the select element, and creates span elements etc on the fly to display a custom drop down list style. I'm quite confident you'd be able to change the styles on the spans etc to center align the items.

As of Java 1.7, there's a new way: java.nio.file.Files.write

import java.nio.file.Files;
import java.nio.file.Paths;

KeyGenerator kgen = KeyGenerator.getInstance("AES");
kgen.init(128);
SecretKey key = kgen.generateKey();
byte[] encoded = key.getEncoded();
Files.write(Paths.get("target-file"), encoded);

Java 1.7 also resolves the embarrassment that Kevin describes: reading a file is now:

byte[] data = Files.readAllBytes(Paths.get("source-file"));

let's assume you are using shell=False and providing the command as a list. And some malicious user tried injecting an 'rm' command. You will see, that 'rm' will be interpreted as an argument and effectively 'ls' will try to find a file called 'rm'

>>> subprocess.run(['ls','-ld','/home','rm','/etc/passwd'])
ls: rm: No such file or directory
-rw-r--r--    1 root     root          1172 May 28  2020 /etc/passwd
drwxr-xr-x    2 root     root          4096 May 29  2020 /home
CompletedProcess(args=['ls', '-ld', '/home', 'rm', '/etc/passwd'], returncode=1)

shell=False is not a secure by default, if you don't control the input properly. You can still execute dangerous commands.

>>> subprocess.run(['rm','-rf','/home'])
CompletedProcess(args=['rm', '-rf', '/home'], returncode=0)
>>> subprocess.run(['ls','-ld','/home'])
ls: /home: No such file or directory
CompletedProcess(args=['ls', '-ld', '/home'], returncode=1)
>>>

I am writing most of my applications in container environments, I know which shell is being invoked and i am not taking any user input.

So in my use case, I see no security risk. And it is much easier creating long string of commands. Hope I am not wrong.

The high votes answer is right. You can checkout that you have applied different name for the components. But if the question is still not resolved, you can make sure that you have register the component only once.

components: {_x000D_
    IMContainer,_x000D_
    RightPanel_x000D_
},_x000D_
methods: {},_x000D_
components: {_x000D_
    IMContainer,_x000D_
    RightPanel_x000D_
}_x000D_
  

we always forget that we have register the component before

You could write something like that :

public static bool HasMethod(this object objectToCheck, string methodName)
{
    var type = objectToCheck.GetType();
    return type.GetMethod(methodName) != null;
} 

Edit : you can even do an extension method and use it like this

myObject.HasMethod("SomeMethod");

I don't seem to be able to edit the top post, so I'll add my answer here.

For hostname - easy answer, on egrep example here -- http: //www.linuxinsight.com/how_to_grep_for_ip_addresses_using_the_gnu_egrep_utility.html

egrep '([[:digit:]]{1,3}\.){3}[[:digit:]]{1,3}'

Though the case doesn't account for values like 0 in the fist octet, and values greater than 254 (ip addres) or 255 (netmask). Maybe an additional if statement would help.

As for legal dns hostname, provided that you are checking for internet hostnames only (and not intranet), I wrote the following snipped, a mix of shell/php but it should be applicable as any regular expression.

first go to ietf website, download and parse a list of legal level 1 domain names:

tld=$(curl -s http://data.iana.org/TLD/tlds-alpha-by-domain.txt |  sed 1d  | cut -f1 -d'-' | tr '\n' '|' | sed 's/\(.*\)./\1/')
echo "($tld)"

That should give you a nice piece of re code that checks for legality of top domain name, like .com .org or .ca

Then add first part of the expression according to guidelines found here -- http: //www.domainit.com/support/faq.mhtml?category=Domain_FAQ&question=9 (any alphanumeric combination and '-' symbol, dash should not be in the beginning or end of an octet.

(([a-z0-9]+|([a-z0-9]+[-]+[a-z0-9]+))[.])+

Then put it all together (PHP preg_match example):

$pattern = '/^(([a-z0-9]+|([a-z0-9]+[-]+[a-z0-9]+))[.])+(AC|AD|AE|AERO|AF|AG|AI|AL|AM|AN|AO|AQ|AR|ARPA|AS|ASIA|AT|AU|AW|AX|AZ|BA|BB|BD|BE|BF|BG|BH|BI|BIZ|BJ|BM|BN|BO|BR|BS|BT|BV|BW|BY|BZ|CA|CAT|CC|CD|CF|CG|CH|CI|CK|CL|CM|CN|CO|COM|COOP|CR|CU|CV|CX|CY|CZ|DE|DJ|DK|DM|DO|DZ|EC|EDU|EE|EG|ER|ES|ET|EU|FI|FJ|FK|FM|FO|FR|GA|GB|GD|GE|GF|GG|GH|GI|GL|GM|GN|GOV|GP|GQ|GR|GS|GT|GU|GW|GY|HK|HM|HN|HR|HT|HU|ID|IE|IL|IM|IN|INFO|INT|IO|IQ|IR|IS|IT|JE|JM|JO|JOBS|JP|KE|KG|KH|KI|KM|KN|KP|KR|KW|KY|KZ|LA|LB|LC|LI|LK|LR|LS|LT|LU|LV|LY|MA|MC|MD|ME|MG|MH|MIL|MK|ML|MM|MN|MO|MOBI|MP|MQ|MR|MS|MT|MU|MUSEUM|MV|MW|MX|MY|MZ|NA|NAME|NC|NE|NET|NF|NG|NI|NL|NO|NP|NR|NU|NZ|OM|ORG|PA|PE|PF|PG|PH|PK|PL|PM|PN|PR|PRO|PS|PT|PW|PY|QA|RE|RO|RS|RU|RW|SA|SB|SC|SD|SE|SG|SH|SI|SJ|SK|SL|SM|SN|SO|SR|ST|SU|SV|SY|SZ|TC|TD|TEL|TF|TG|TH|TJ|TK|TL|TM|TN|TO|TP|TR|TRAVEL|TT|TV|TW|TZ|UA|UG|UK|US|UY|UZ|VA|VC|VE|VG|VI|VN|VU|WF|WS|XN|XN|XN|XN|XN|XN|XN|XN|XN|XN|XN|YE|YT|YU|ZA|ZM|ZW)[.]?$/i';

    if (preg_match, $pattern, $matching_string){
    ... do stuff
    }

You may also want to add an if statement to check that string that you checking is shorter than 256 characters -- http://www.ops.ietf.org/lists/namedroppers/namedroppers.2003/msg00964.html

Execute

. example.txt

That does exactly what you ask for, without setting an executable flag on the file or running an extra bash instance.

For a detailed explanation see e.g. https://unix.stackexchange.com/questions/43882/what-is-the-difference-between-sourcing-or-source-and-executing-a-file-i

About the memory layout

As a side note, the problem with the Dreaded Diamond is that the base class is present multiple times. So with regular inheritance, you believe you have:

  A
 / \
B   C
 \ /
  D

But in the memory layout, you have:

A   A
|   |
B   C
 \ /
  D

This explain why when call D::foo(), you have an ambiguity problem. But the real problem comes when you want to use a member variable of A. For example, let's say we have:

class A
{
    public :
       foo() ;
       int m_iValue ;
} ;

When you'll try to access m_iValue from D, the compiler will protest, because in the hierarchy, it'll see two m_iValue, not one. And if you modify one, say, B::m_iValue (that is the A::m_iValue parent of B), C::m_iValue won't be modified (that is the A::m_iValue parent of C).

This is where virtual inheritance comes handy, as with it, you'll get back to a true diamond layout, with not only one foo() method only, but also one and only one m_iValue.

What could go wrong?

Imagine:

• A has some basic feature.
• B adds to it some kind of cool array of data (for example)
• C adds to it some cool feature like an observer pattern (for example, on m_iValue).
• D inherits from B and C, and thus from A.

With normal inheritance, modifying m_iValue from D is ambiguous and this must be resolved. Even if it is, there are two m_iValues inside D, so you'd better remember that and update the two at the same time.

With virtual inheritance, modifying m_iValue from D is ok... But... Let's say that you have D. Through its C interface, you attached an observer. And through its B interface, you update the cool array, which has the side effect of directly changing m_iValue...

As the change of m_iValue is done directly (without using a virtual accessor method), the observer "listening" through C won't be called, because the code implementing the listening is in C, and B doesn't know about it...

Conclusion

If you're having a diamond in your hierarchy, it means that you have 95% probability to have done something wrong with said hierarchy.

Inline sample;

public static String strrev(String str) {
    return !str.equals("") ? strrev(str.substring(1)) + str.charAt(0) : str;
}

Another tactic not yet mentioned is using appending to a list, and then converting the list to a tuple at the end:

mylist = []
for x in range(5):
    mylist.append(x)
mytuple = tuple(mylist)
print mytuple

returns

(0, 1, 2, 3, 4)

I sometimes use this when I have to pass a tuple as a function argument, which is often necessary for the numpy functions.

You can try this it will help for you.You can't get path from WhatsApp directly.If you need an file path first copy file and send new file path. Using the code below

 public static String getFilePathFromURI(Context context, Uri contentUri) {
    String fileName = getFileName(contentUri);
    if (!TextUtils.isEmpty(fileName)) {
        File copyFile = new File(TEMP_DIR_PATH  + fileName+".jpg");
        copy(context, contentUri, copyFile);
        return copyFile.getAbsolutePath();
    }
    return null;
}

public static String getFileName(Uri uri) {
    if (uri == null) return null;
    String fileName = null;
    String path = uri.getPath();
    int cut = path.lastIndexOf('/');
    if (cut != -1) {
        fileName = path.substring(cut + 1);
    }
    return fileName;
}

public static void copy(Context context, Uri srcUri, File dstFile) {
    try {
        InputStream inputStream = context.getContentResolver().openInputStream(srcUri);
        if (inputStream == null) return;
        OutputStream outputStream = new FileOutputStream(dstFile);
        IOUtils.copy(inputStream, outputStream);
        inputStream.close();
        outputStream.close();
    } catch (IOException e) {
        e.printStackTrace();
    } catch (Exception e) {
        e.printStackTrace();
    }
}

Then IOUtils class is like below

public class IOUtils {



private static final int BUFFER_SIZE = 1024 * 2;

private IOUtils() {
    // Utility class.
}

public static int copy(InputStream input, OutputStream output) throws Exception, IOException {
    byte[] buffer = new byte[BUFFER_SIZE];

    BufferedInputStream in = new BufferedInputStream(input, BUFFER_SIZE);
    BufferedOutputStream out = new BufferedOutputStream(output, BUFFER_SIZE);
    int count = 0, n = 0;
    try {
        while ((n = in.read(buffer, 0, BUFFER_SIZE)) != -1) {
            out.write(buffer, 0, n);
            count += n;
        }
        out.flush();
    } finally {
        try {
            out.close();
        } catch (IOException e) {
            Log.e(e.getMessage(), e.toString());
        }
        try {
            in.close();
        } catch (IOException e) {
            Log.e(e.getMessage(), e.toString());
        }
    }
    return count;
}


}

With PowerShell 5.1 in Windows 10 you can use:

Get-SmbMapping | Remove-SmbMapping -Confirm:$false

Just to extend the answer above you can also index your columns rather than specifying the column names which can also be useful depending on what you're doing. Given that your location is the first field it would look like this:

    bar <- foo[foo[ ,1] == "there", ]

This is useful because you can perform operations on your column value, like looping over specific columns (and you can do the same by indexing row numbers too).

This is also useful if you need to perform some operation on more than one column because you can then specify a range of columns:

    foo[foo[ ,c(1:N)], ]

Or specific columns, as you would expect.

    foo[foo[ ,c(1,5,9)], ]

If you're pulling this value directly from a SQL Database and the value is null in there, it will actually be the DBNull object rather than null. Either place a check prior to your conversion & use a default value in the event of DBNull, or replace your null check afterwards with a check on rdrSelect[23] for DBNull.

Are you trying to submit a form?

Listen to the submit event instead.

This will handle click and enter.

If you must use enter key...

document.querySelector('#txtSearch').addEventListener('keypress', function (e) {
    if (e.key === 'Enter') {
      // code for enter
    }
});

import org.apache.spark.sql.functions.desc

df.orderBy(desc("columnname1"),desc("columnname2"),asc("columnname3"))

Define a const static instance of the struct with the initial values and then simply assign this value to your variable whenever you want to reset it.

For example:

static const struct x EmptyStruct;

Here I am relying on static initialization to set my initial values, but you could use a struct initializer if you want different initial values.

Then, each time round the loop you can write:

myStructVariable = EmptyStruct;

$headers = apache_request_headers();
$is_ajax = (isset($headers['X-Requested-With']) && $headers['X-Requested-With'] == 'XMLHttpRequest');

As I noticed your description, you just know that your parser will give you a dictionary that its values are dictionary too like this:

sampleDict = {
              "key1": {"key10": "value10", "key11": "value11"},
              "key2": {"key20": "value20", "key21": "value21"}
              }

So you have to iterate over your parent dictionary. If you want to print out or access all first dictionary keys in sampleDict.values() list, you may use something like this:

for key, value in sampleDict.items():
    print value.keys()[0]

If you want to just access first key of the first item in sampleDict.values(), this may be useful:

print sampleDict.values()[0].keys()[0]

If you use the example you gave in the question, I mean:

sampleDict = {
              'Apple': {'American':'16', 'Mexican':10, 'Chinese':5},
              'Grapes':{'Arabian':'25','Indian':'20'}
              }

The output for the first code is:

American
Indian

And the output for the second code is:

American

EDIT 1:

Above code examples does not work for version 3 and above of python; since from version 3, python changed the type of output of methods keys and values from list to dict_values. Type dict_values is not accepting indexing, but it is iterable. So you need to change above codes as below:

First One:

for key, value in sampleDict.items():
    print(list(value.keys())[0])

Second One:

print(list(list(sampleDict.values())[0].keys())[0])

If your backgrounds are in the drawable folder right now try moving the images from drawable to drawable-nodpi folder in your project. This worked for me, seems that else the images are rescaled by them self..

Also adding insert option, as not mentioned yet.

std::string str("Hello World");
char ch;

str.push_back(ch);  //ch is the character to be added
OR
str.append(sizeof(ch),ch);
OR
str.insert(str.length(),sizeof(ch),ch) //not mentioned above

To reduce memory consumption and to speed up the search you may use -ReadCount option of Get-Content cmdlet (https://technet.microsoft.com/ru-ru/library/hh849787.aspx).

This may save hours when you working with large files.

Here is an example:

$n = 60699010
$src = 'hugefile.csv'
$batch = 100
$timer = [Diagnostics.Stopwatch]::StartNew()

$count = 0
Get-Content $src -ReadCount $batch -TotalCount $n | %  { 
    $count += $_.Length
    if ($count -ge $n ) {
        $_[($n - $count + $_.Length - 1)]
    }
}

$timer.Stop()
$timer.Elapsed

This prints $n'th line and elapsed time.

Another possibility is the CountDownLatch object, which is useful for simple situations : since you know in advance the number of threads, you initialize it with the relevant count, and pass the reference of the object to each thread.
Upon completion of its task, each thread calls CountDownLatch.countDown() which decrements the internal counter. The main thread, after starting all others, should do the CountDownLatch.await() blocking call. It will be released as soon as the internal counter has reached 0.

Pay attention that with this object, an InterruptedException can be thrown as well.

Suppose you have a button that when pressed sets n to 5, you could then generate labels and textboxes on your form like so.

var n = 5;
for (int i = 0; i < n; i++)
{
    //Create label
    Label label = new Label();
    label.Text = String.Format("Label {0}", i);
    //Position label on screen
    label.Left = 10;
    label.Top = (i + 1) * 20;
    //Create textbox
    TextBox textBox = new TextBox();
    //Position textbox on screen
    textBox.Left = 120;
    textBox.Top = (i + 1) * 20;
    //Add controls to form
    this.Controls.Add(label);
    this.Controls.Add(textBox);
}

This will not only add them to the form but position them decently as well.

I do the following for my .NET Standard 2.0 projects.

Create a Directory.Build.props file (e.g. in the root of your repo) and move the properties to be shared from the .csproj file to this file.

MSBuild will pick it up automatically and apply them to the autogenerated AssemblyInfo.cs.

They also get applied to the nuget package when building one with dotnet pack or via the UI in Visual Studio 2017.

See https://docs.microsoft.com/en-us/visualstudio/msbuild/customize-your-build

Example:

<Project>
    <PropertyGroup>
        <Company>Some company</Company>
        <Copyright>Copyright © 2020</Copyright>
        <AssemblyVersion>1.0.0.1</AssemblyVersion>
        <FileVersion>1.0.0.1</FileVersion>
        <Version>1.0.0.1</Version>
        <!-- ... -->
    </PropertyGroup>
</Project>

Create a repository folder under your project. Let's take

${project.basedir}/src/main/resources/repo

Then, install your custom jar to this repo:

mvn install:install-file -Dfile=[FILE_PATH] \
-DgroupId=[GROUP] -DartifactId=[ARTIFACT] -Dversion=[VERS] \ 
-Dpackaging=jar -DlocalRepositoryPath=[REPO_DIR]

Lastly, add the following repo and dependency definitions to the projects pom.xml:

<repositories>
    <repository>
        <id>project-repo</id>
        <url>file://${project.basedir}/src/main/resources/repo</url>
    </repository>
</repositories>

<dependencies>    
    <dependency>
        <groupId>[GROUP]</groupId>
        <artifactId>[ARTIFACT]</artifactId>
        <version>[VERS]</version>
    </dependency>
</dependencies>

I guess you want to convert the values contained in the Map to a list? Easiest is to call the values() method of the Map interface. This will return the Collection of value objects contained in the Map.

Note that this Collection is backed by the Map object and any changes to the Map object will reflect here. So if you want a separate copy not bound to your Map object, simply create a new List object like an ArrayList passing the value Collection as below.

ArrayList<String> list = new ArrayList<String>(map.values());

I think that this would help:

<select name="select_1">
    <optgroup label="First optgroup category">
      <option selected="selected" value="0">Select element</option>
      <option value="2">Option 1</option>
      <option value="3">Option 2</option>
      <option value="4">Option 3</option>
    </optgroup>
    <optgroup label="Second optgroup category">
      <option value="5">Option 4</option>
      <option value="6">Option 5</option>
      <option value="7">Option 6</option>
    </optgroup>
</select>

Here is a manual way to do git remote set-url origin [new repo URL]:

1. Clone the repository: git clone <old remote>
2. Create a GitHub repository

3. Open <repository>/.git/config

   $ git config -e
   

   [core]
       repositoryformatversion = 0
       filemode = false
       bare = false
       logallrefupdates = true
       symlinks = false
       ignorecase = true
   [remote "origin"]
       url = <old remote>
       fetch = +refs/heads/*:refs/remotes/origin/*
   [branch "master"]
       remote = origin
       merge = refs/heads/master
   

   and change the remote (the url option)

   [remote "origin"]
       url = <new remote>
       fetch = +refs/heads/*:refs/remotes/origin/*
   

4. Push the repository to GitHub: git push

You can also use both/multiple remotes.

I added the Context Menu item for Folders to open in Sublime Text. In windows, you can right click on any Folder and open the structure in Sublime. You could also create a service (?) for Mac OS - I'm just not familiar with the process.

The following could be saved to a File (OpenFolderWithSublime.reg) to merge to the registry. Be Sure to modify the directory structure to appropriately point to your Sublime installation. Alternatively, you can use REGEDIT and browse to HKCR\Folder\shell and create the values manually.

Windows Registry Editor Version 5.00

[HKEY_CLASSES_ROOT\Folder\shell\Open with Sublime Text]

[HKEY_CLASSES_ROOT\Folder\shell\Open with Sublime Text\command]
@="C:\\Program Files\\Sublime Text 2\\sublime_text \"%1\""

Actually, there is a way. You just need to copy DeviceSupport folder for iOS 7.1 from Older Xcode to the new one. It's located in:

/Applications/Xcode.app/Contents/Developer/Platforms/iPhoneOS.platform/DeviceSupport/7.1

If you don't have the 7.1 files anymore, you can download a previous version of XCode on https://developer.apple.com/download/more/, extract it, and then copy these files to following path

/Applications/Xcode.app/Contents/Developer/Platforms/iPhoneOS.platform/DeviceSupport/

Credit

I was having the similar issue when using VirtualBox on Ubuntu 12.04LTS. Now if anyone is using or has ever used Ubuntu, you might be aware that how things are hard sometimes when using shortcut keys in Ubuntu. For me, when i was trying to revert back the Host key, it was just not happening and the shortcut keys won't just work. I even tried the command line option to revert back the scale mode and it won't work either. Finally i found the following when all the other options fails:

Fix the Scale Mode Issue in Oracle VirtualBox in Ubuntu using the following steps:

1. Close all virtual machines and VirtualBox windows.

2. Find your machine config files (i.e. /home/<username>/VirtualBox VMs/ANKSVM) where ANKSVM is your VM Name and edit and change the following in ANKSVM.vbox and ANKSVM.vbox-prev files:

3. Edit the line: <ExtraDataItem name="GUI/Scale" value="on"/> to <ExtraDataItem name="GUI/Scale" value="off"/>

4. Restart VirtualBox

You are done.

This works every time specially when all other options fails like how it happened for me.

It is important that you decorate the router link and link with square brackets as follows:

<a [routerLink]="['/service']"> <button class="btn btn-info"> link to other page </button></a>

Where "/service" in this case is the path url specified in the routing component.

You can remove inline properties this way:

$(selector).css({'property':'', 'property':''});

For example:

$(actpar).css({'top':'', 'opacity':''});

This is essentially mentioned above, and it definitely does the trick.

BTW, this is useful in instances such as when you need to clear a state after animation. Sure I could write a half dozen classes to deal with this, or I could use my base class and #id do some math, and clear the inline style that the animation applies.

$(actpar).animate({top:0, opacity:1, duration:500}, function() {
   $(this).css({'top':'', 'opacity':''});
});

If a method only accesses local variables, it's thread safe. Is that it?

Absolultely not. You can write a program with only a single local variable accessed from a single thread that is nevertheless not threadsafe:

https://stackoverflow.com/a/8883117/88656

Does that apply for static methods as well?

Absolutely not.

One answer, provided by @Cybis, was: "Local variables cannot be shared among threads because each thread gets its own stack."

Absolutely not. The distinguishing characteristic of a local variable is that it is only visible from within the local scope, not that it is allocated on the temporary pool. It is perfectly legal and possible to access the same local variable from two different threads. You can do so by using anonymous methods, lambdas, iterator blocks or async methods.

Is that the case for static methods as well?

Absolutely not.

If a method is passed a reference object, does that break thread safety?

Maybe.

I've done some research, and there is a lot out there about certain cases, but I was hoping to be able to define, by using just a few rules, guidelines to follow to make sure a method is thread safe.

You are going to have to learn to live with disappointment. This is a very difficult subject.

So, I guess my ultimate question is: "Is there a short list of rules that define a thread-safe method?

Nope. As you saw from my example earlier an empty method can be non-thread-safe. You might as well ask "is there a short list of rules that ensures a method is correct". No, there is not. Thread safety is nothing more than an extremely complicated kind of correctness.

Moreover, the fact that you are asking the question indicates your fundamental misunderstanding about thread safety. Thread safety is a global, not a local property of a program. The reason why it is so hard to get right is because you must have a complete knowledge of the threading behaviour of the entire program in order to ensure its safety.

Again, look at my example: every method is trivial. It is the way that the methods interact with each other at a "global" level that makes the program deadlock. You can't look at every method and check it off as "safe" and then expect that the whole program is safe, any more than you can conclude that because your house is made of 100% non-hollow bricks that the house is also non-hollow. The hollowness of a house is a global property of the whole thing, not an aggregate of the properties of its parts.

tl;dr

LocalDate.parse( 
    "January 08, 2017" , 
    DateTimeFormatter.ofPattern( "MMMM dd, uuuu" , Locale.US ) 
).format( DateTimeFormatter.BASIC_ISO_DATE ) 

Using java.time

The Question and other Answers use troublesome old date-time classes, now legacy, supplanted by the java.time classes.

You have date-only values, so use a date-only class. The LocalDate class represents a date-only value without time-of-day and without time zone.

String input = "January 08, 2017";
Locale l = Locale.US ;
DateTimeFormatter f = DateTimeFormatter.ofPattern( "MMMM dd, uuuu" , l );
LocalDate ld = LocalDate.parse( input , f );

Your desired output format is defined by the ISO 8601 standard. For a date-only value, the “expanded” format is YYYY-MM-DD such as 2017-01-08 and the “basic” format that minimizes the use of delimiters is YYYYMMDD such as 20170108.

I strongly suggest using the expanded format for readability. But if you insist on the basic format, that formatter is predefined as a constant on the DateTimeFormatter class named BASIC_ISO_DATE.

String output = ld.format( DateTimeFormatter.BASIC_ISO_DATE );

See this code run live at IdeOne.com.

ld.toString(): 2017-01-08

output: 20170108

About java.time

The java.time framework is built into Java 8 and later. These classes supplant the troublesome old legacy date-time classes such as java.util.Date, Calendar, & SimpleDateFormat.

The Joda-Time project, now in maintenance mode, advises migration to the java.time classes.

To learn more, see the Oracle Tutorial. And search Stack Overflow for many examples and explanations. Specification is JSR 310.

Where to obtain the java.time classes?

• Java SE 8 and SE 9 and later
  • Built-in.
  • Part of the standard Java API with a bundled implementation.
  • Java 9 adds some minor features and fixes.
• Java SE 6 and SE 7
  • Much of the java.time functionality is back-ported to Java 6 & 7 in ThreeTen-Backport.
• Android
  • The ThreeTenABP project adapts ThreeTen-Backport (mentioned above) for Android specifically.
  • See How to use ThreeTenABP….

The ThreeTen-Extra project extends java.time with additional classes. This project is a proving ground for possible future additions to java.time. You may find some useful classes here such as Interval, YearWeek, YearQuarter, and more.

Beyond historical (good and already reported) reasons, there's is also a little problem with operators precedence: dot operator has higher priority than star operator, so if you have struct containing pointer to struct containing pointer to struct... These two are equivalent:

(*(*(*a).b).c).d

a->b->c->d

But the second is clearly more readable. Arrow operator has the highest priority (just as dot) and associates left to right. I think this is clearer than use dot operator both for pointers to struct and struct, because we know the type from the expression without have to look at the declaration, that could even be in another file.

Yes, it is possible. All you have to do is change your query to something like SELECT i.foo, i.bar FROM ObjectName i WHERE i.id = 10. The result of the query will be a List of array of Object. The first element in each array is the value of i.foo and the second element is the value i.bar. See the relevant section of JPQL reference.

Or this:

$(document).ready(function(){
    $(".header").click(function(){
        $(this).children(".children").toggle();
    });
   $(".header a").click(function(e) {
        return false;
   });
});

If you are already doing databinding:

<asp:Calendar ID="Calendar1" runat="server"  SelectedDate="<%# DateTime.Today %>" />

Will do it. This does require that somewhere you are doing a Page.DataBind() call (or a databind call on a parent control). If you are not doing that and you absolutely do not want any codebehind on the page, then you'll have to create a usercontrol that contains a calendar control and sets its selecteddate.

Either use window.onload this way

<script>
    window.onload = function() {
        // ...
    }
</script>

or alternatively

<script>
    window.onload = functionName;
</script>

(yes, without the parentheses)

Or just put the script at the very bottom of page, right before </body>. At that point, all HTML DOM elements are ready to be accessed by document functions.

<body>
    ...

    <script>
        functionName();
    </script>
</body>

You can also use the parameters "use24hours" and "language" to do this, as follows:

$(function () {_x000D_
    $('.datetime').datetimepicker({_x000D_
        language: 'pt-br',_x000D_
        use24hours: true,_x000D_
    });_x000D_
});

Alternatively, if you're working in .NET v4.5 or above, try using System.Web.MimeMapping.GetMimeMapping(yourFileName) to get MIME types. It is much better than hard-coding strings.

1. To remove migration (if you already migrated the migration)

   rake db:migrate:down VERSION="20130417185845" #Your migration version
   

2. To remove Model

   rails d model name  #name => Your model name
   

Arrays of data are converted into csv 'text/csv' format by built in php function fputcsv takes care of commas, quotes and etc..
Look at
https://coderwall.com/p/zvzwwa/array-to-comma-separated-string-in-php
http://www.php.net/manual/en/function.fputcsv.php

if "502 Bad Gateway" error throws on centos api url for api gateway proxy pass on nginx , run following command to solve the issue

sudo setsebool -P httpd_can_network_connect 1

CASE LEN('TestPerson')
    WHEN 0 THEN co.personentered  = co.personentered ELSE co.personentered LIKE '%TestPerson'

Try the following:

... and ( 
    (LEN('TestPerson') = 0 and co.personentered  = co.personentered) or
    (LEN('TestPerson') <> 0 and co.personentered LIKE '%TestPerson') ) and ...

I assume you're using typescript.

To be extra cautious you can define your type as an array of objects that need to match certain interface:

type MyArrayType = Array<{id: number, text: string}>;

const arr: MyArrayType = [
    {id: 1, text: 'Sentence 1'},
    {id: 2, text: 'Sentence 2'},
    {id: 3, text: 'Sentence 3'},
    {id: 4, text: 'Sentenc4 '},
];

Or short syntax without defining a custom type:

const arr: Array<{id: number, text: string}> = [...];

The above answers are correct if you really don't have a PK.

But if there is one but it is just not specified with an index in the DB, and you can't change the DB (yes, i work in Dilbert's world) you can manually map the field(s) to be the key.

Another option:

UPDATE `table` SET the_col = current_timestamp

Looks odd, but works as expected. If I had to guess, I'd wager this is slightly faster than calling now().

$(this).parents('div').attr('id');

Just use the KeepAlive like @toster-cx says and then use the Socket Connected status to check if the Socket is still connected. Set your receive timeout at the same timeout of the keepalive. If you have more questions i am always happy to help!

You can do it with the options

echo   $form->field($model, 'hidden1', 
      ['options' => ['value'=> 'your value'] ])->hiddenInput()->label(false);

If you are just experimenting you can use babel-node command line tool to try out the new JavaScript features

1. Install babel-cli into your project

   $ npm install --save-dev babel-cli

2. Install the presets

   $ npm install --save-dev babel-preset-es2015 babel-preset-es2017

3. Setup your babel presets

   Create .babelrc in the project root folder with the following contents:

   { "presets": ["es2015","es2017"] }

4. Run your script with babel-node

   $ babel-node helloz.js

This is only for development and testing but that seems to be what you are doing. In the end you'll want to set up webpack (or something similar) to transpile all your code for production

• babel-node sample code : https://github.com/stujo/javascript-async-await/tree/15abac

If you want to run the code somewhere else, webpack can help and here is the simplest configuration I could work out:

• Full webpack example : https://github.com/stujo/javascript-async-await

You can also specify the range with the coord_cartesian command to set the y-axis range that you want, an like in the previous post use scales = free_x

p <- ggplot(plot, aes(x = pred, y = value)) +
     geom_point(size = 2.5) +
     theme_bw()+
     coord_cartesian(ylim = c(-20, 80))
p <- p + facet_wrap(~variable, scales = "free_x")
p

You can auto generate Image map from this website for selected area of image. https://www.image-map.net/

Easiest way to execute!

Not quite sure what the 300 is supposed to mean? Miss typo? However for iframes it would be best to use CSS :) - Ive found befor when importing youtube videos that it ignores inline things.

<style>
    #myFrame { width:100%; height:100%; }
</style>

<iframe src="html_intro.asp" id="myFrame">
<p>Hi SOF</p>
</iframe>

#Try this:

input[type="text"],textarea[type="text"]::-webkit-input-placeholder {
    color:#f51;
}
input[type="text"],textarea[type="text"]:-moz-placeholder {
    color:#f51;
}
input[type="text"],textarea[type="text"]::-moz-placeholder {
    color:#f51;
}
input[type="text"],textarea[type="text"]:-ms-input-placeholder {
    color:#f51;
}

##Works very well for me.

System variables usually require a restart to become effective. Does it still not work after a restart?

A lot of answers ask you to use END, but if that's not working for you, try:

text.delete("1.0", "end-1c")

To print to any printer on the network you can send a PJL/PCL print job directly to a network printer on port 9100.

Please have a look at the below link that should give a good start:

http://frank.zinepal.com/printing-directly-to-a-network-printer

Also, If there is a way to call Windows cmd you can use FTP put to print your page on 9100. Below link should give you details, I have used this method for HP printers but I believe it will work for other printers.

http://h20000.www2.hp.com/bizsupport/TechSupport/Document.jsp?objectID=bpj06165

JTextField allows us to getText() and setText() these are used to get and set the contents of the text field, for example.

text = texfield.getText();

hope this helps

Many thanks to Dorian and Phrogz for reminding me about the array (and hash) method #replace, which can "replace the contents of an array or hash."

The notion that a CONSTANT's value can be changed, but with an annoying warning, is one of Ruby's few conceptual mis-steps -- these should either be fully immutable, or dump the constant idea altogether. From a coder's perspective, a constant is declarative and intentional, a signal to other that "this value is truly unchangeable once declared/assigned."

But sometimes an "obvious declaration" actually forecloses other, future useful opportunities. For example...

There are legitimate use cases where a "constant's" value might really need to be changed: for example, re-loading ARGV from a REPL-like prompt-loop, then rerunning ARGV thru more (subsequent) OptionParser.parse! calls -- voila! Gives "command line args" a whole new dynamic utility.

The practical problem is either with the presumptive assumption that "ARGV must be a constant", or in optparse's own initialize method, which hard-codes the assignment of ARGV to the instance var @default_argv for subsequent processing -- that array (ARGV) really should be a parameter, encouraging re-parse and re-use, where appropriate. Proper parameterization, with an appropriate default (say, ARGV) would avoid the need to ever change the "constant" ARGV. Just some 2¢-worth of thoughts...

You have to call close() on the GZIPOutputStream before you attempt to read it. The final bytes of the file will only be written when the file is actually closed. (This is irrespective of any explicit buffering in the output stack. The stream only knows to compress and write the last bytes when you tell it to close. A flush() probably won't help ... though calling finish() instead of close() should work. Look at the javadocs.)

Here's the correct code (in Java);

package test;

import java.io.FileInputStream;
import java.io.FileNotFoundException;
import java.io.FileOutputStream;
import java.io.IOException;
import java.util.zip.GZIPInputStream;
import java.util.zip.GZIPOutputStream;

public class GZipTest {

    public static void main(String[] args) throws
                FileNotFoundException, IOException {
        String name = "/tmp/test";
        GZIPOutputStream gz = new GZIPOutputStream(new FileOutputStream(name));
        gz.write(10);
        gz.close();       // Remove this to reproduce the reported bug
        System.out.println(new GZIPInputStream(new FileInputStream(name)).read());
    }
}

(I've not implemented resource management or exception handling / reporting properly as they are not relevant to the purpose of this code. Don't treat this as an example of "good code".)

array_splice — Remove a portion of the array and replace it with something else:

$input = array(1, 2, 3, 4, 5, 6);
array_splice($input, 5); // $input is now array(1, 2, 3, 4, 5)

From PHP manual:

array array_splice ( array &$input , int $offset [, int $length = 0 [, mixed $replacement]])

If length is omitted, removes everything from offset to the end of the array. If length is specified and is positive, then that many elements will be removed. If length is specified and is negative then the end of the removed portion will be that many elements from the end of the array. Tip: to remove everything from offset to the end of the array when replacement is also specified, use count($input) for length .

Another recommended exersice for understanding lists and indexes:

L = ['a', 'b', 'c']
for index, item in enumerate(L):
    print index + '\n' + item

0
a
1
b
2
c 

Posting this late just for others..I bet the first coder is done by now. For simple datatypes no copy is needed, just revert to good old C code methods.

std::vector <int>   myVec;
int *p;
// Add some data here and set start, then
p=myVec.data()+start;

Then pass the pointer p and a len to anything needing a subvector.

notelen must be!! len < myVec.size()-start

import com.google.common.collect.Streams;

and use Streams.stream(iterator) :

Streams.stream(iterator)
       .map(v-> function(v))
       .collect(Collectors.toList());

According to Wikipedia:

A segmentation fault occurs when a program attempts to access a memory location that it is not allowed to access, or attempts to access a memory location in a way that is not allowed (for example, attempting to write to a read-only location, or to overwrite part of the operating system).

I expanded the Bootstrap table styles as Davide Pastore did, but with that method the styles are applied to all child tables as well, and they don't apply to the footer.

A better solution would be imitating the core Bootstrap table styles, but with your new class:

.table-borderless>thead>tr>th
.table-borderless>thead>tr>td
.table-borderless>tbody>tr>th
.table-borderless>tbody>tr>td
.table-borderless>tfoot>tr>th
.table-borderless>tfoot>tr>td {
    border: none;
}

Then when you use <table class='table table-borderless'> only the specific table with the class will be bordered, not any table in the tree.

Place the Image in the folder drawable. drawable folder is in res. drawable have 5 variants drawable-hdpi drawable-ldpi drawable-mdpi drawable-xhdpi drawable-xxhdpi

There is no single magic function to force a frame to a minimum or fixed size. However, you can certainly force the size of a frame by giving the frame a width and height. You then have to do potentially two more things: when you put this window in a container you need to make sure the geometry manager doesn't shrink or expand the window. Two, if the frame is a container for other widget, turn grid or pack propagation off so that the frame doesn't shrink or expand to fit its own contents.

Note, however, that this won't prevent you from resizing a window to be smaller than an internal frame. In that case the frame will just be clipped.

import Tkinter as tk

root = tk.Tk()
frame1 = tk.Frame(root, width=100, height=100, background="bisque")
frame2 = tk.Frame(root, width=50, height = 50, background="#b22222")

frame1.pack(fill=None, expand=False)
frame2.place(relx=.5, rely=.5, anchor="c")

root.mainloop()

An unsigned application cannot be installed. When we run directly from eclipse, that apk is signed with debugger key and can be found in bin\ folder of the project. You can use that for test purpose distribution also.

You can also make additions to this path with the PYTHONPATH environment variable at runtime, in addition to:

import sys
sys.path.append('/home/user/python-libs')

I am not completely sure what you're trying to achieve by seeking to a specific offset and attempting to load individual values manually, the typical usage of the pickle module is:

# save data to a file
with open('myfile.pickle','wb') as fout:
    pickle.dump([1,2,3],fout)

# read data from a file
with open('myfile.pickle') as fin:
    print pickle.load(fin)

# output
>> [1, 2, 3]

If you dumped a list, you'll load a list, there's no need to load each item individually.

you're saying that you got an error before you were seeking to the -5000 offset, maybe the file you're trying to read is corrupted.

If you have access to the original data, I suggest you try saving it to a new file and reading it as in the example.

Here is a tidyverse option that might work depending on the data, and some caveats on its usage:

library(tidyverse)

starting_df %>% 
  rownames_to_column() %>% 
  gather(variable, value, -rowname) %>% 
  spread(rowname, value)

rownames_to_column() is necessary if the original dataframe has meaningful row names, otherwise the new column names in the new transposed dataframe will be integers corresponding to the orignal row number. If there are no meaningful row names you can skip rownames_to_column() and replace rowname with the name of the first column in the dataframe, assuming those values are unique and meaningful. Using the tidyr::smiths sample data would be:

smiths %>% 
    gather(variable, value, -subject) %>% 
    spread(subject, value)

Using the example starting_df with the tidyverse approach will throw a warning message about dropping attributes. This is related to converting columns with different attribute types into a single character column. The smiths data will not give that warning because all columns except for subject are doubles.

The earlier answer using as.data.frame(t()) will convert everything to a factor if there are mixed column types unless stringsAsFactors = FALSE is added, whereas the tidyverse option converts everything to a character by default if there are mixed column types.

in main:

@Override
public void onRestart()
{
    super.onRestart();
    finish();
    startActivity(getIntent());
}

I'm a little late, but, since some time ago in TypeScript you can define the type of callback with

type MyCallback = (KeyboardEvent) => void;

Example of use:

this.addEvent(document, "keydown", (e) => {
    if (e.keyCode === 1) {
      e.preventDefault();
    }
});

addEvent(element, eventName, callback: MyCallback) {
    element.addEventListener(eventName, callback, false);
}

Using text nodes in jquery is a particularly delicate endeavour and most operations are made to skip them altogether.

Instead of going through the trouble of carefully avoiding the wrong nodes, why not just wrap whatever you need to replace inside a <span> for instance:

<td><span class="replaceme">8: Tap on APN and Enter <B>www</B>.</span></td>

Then:

$('.replaceme').html('Whatever <b>HTML</b> you want here.');

So for example if you are trying to change the text of the anchor on the current page that you are on only using CSS, then here is a simple solution.

I want to change the anchor text colour on my software page to light blue:

<div class="navbar">
    <ul>
       <a href="../index.html"><li>Home</li></a>
       <a href="usefulsites.html"><li>Useful Sites</li></a>
       <a href="software.html"><li class="currentpage">Software</li></a>
       <a href="workbench.html"><li>The Workbench</li></a>
       <a href="contact.php"><li>Contact</a></li></a>
    </ul>
</div>

And before anyone says that I got the <li> tags and the <a> tags mixed up, this is what makes it work as you are applying the value to the text itself only when you are on that page. Unfortunately, if you are using PHP to input header tags, then this will not work for obvious reasons. Then I put this in my style.css, with all my pages using the same style sheet:

.currentpage {
        color: lightblue;
}

Another thought occurred to me just now that could be a pure CSS solution. Display your active class as an absolutely positioned block and set its style to cover up the parent li.

a.active {
   position:absolute;
   display:block;
   width:100%;
   height:100%;
   top:0em;
   left:0em;
   background-color: whatever;
   border: whatever;
}
/* will also need to make sure the parent li is a positioned element so... */
ul.menu li {
    position:relative;
}    

For those of you who want to use javascript without jquery...

Selecting the parent is trivial. You need a getElementsByClass function of some sort, unless you can get your drupal plugin to assign the active item an ID instead of Class. The function I provided I grabbed from some other genius on SO. It works well, just keep in mind when you're debugging that the function will always return an array of nodes, not just a single node.

active_li = getElementsByClass("active","a");
active_li[0].parentNode.style.whatever="whatever";

function getElementsByClass(node,searchClass,tag) {
    var classElements = new Array();
    var els = node.getElementsByTagName(tag); // use "*" for all elements
    var elsLen = els.length;
    var pattern = new RegExp("\\b"+searchClass+"\\b");
    for (i = 0, j = 0; i < elsLen; i++) {
       if ( pattern.test(els[i].className) ) {
       classElements[j] = els[i];
       j++;
   }
}
return classElements;
}

You can use the toLowerCase() method:

public boolean contains( String haystack, String needle ) {
  haystack = haystack == null ? "" : haystack;
  needle = needle == null ? "" : needle;

  // Works, but is not the best.
  //return haystack.toLowerCase().indexOf( needle.toLowerCase() ) > -1

  return haystack.toLowerCase().contains( needle.toLowerCase() )
}

Then call it using:

if( contains( str1, str2 ) ) {
  System.out.println( "Found " + str2 + " within " + str1 + "." );
}

Notice that by creating your own method, you can reuse it. Then, when someone points out that you should use contains instead of indexOf, you have only a single line of code to change.

For me, this issue occurred after updating Google Play Services. One of the libraries I was using incorporated this library using the "+" in its gradel reference, like

compile 'com.google.android.gms:play-services:+'

This created an issue because the min version targeted by that library was less than what was targeted by the current version of Google Play Services. I found this by simply looking in the logs.

Just be aware that on Unix/Linux your username/password can be seen by anyone that can run "ps -ef" command if you place it directly on the command line . Could be a big security issue (or turn into a big security issue).

I usually recommend creating a file or using here document so you can protect the username/password from being viewed with "ps -ef" command in Unix/Linux. If the username/password is contained in a script file or sql file you can protect using appropriate user/group read permissions. Then you can keep the user/pass inside the file like this in a shell script:

sqlplus -s /nolog <<EOF
connect user/pass
select blah;
quit
EOF

First you can give JavaScript's Date object (class) the new method 'fromYMD()' for converting MySQL's YMD date format into JavaScript format by splitting YMD format into components and using these date components:

Date.prototype.fromYMD=function(ymd)
{
  var t=ymd.split(/[- :]/); //split into components
  return new Date(t[0],t[1]-1,t[2],t[3]||0,t[4]||0,t[5]||0);
};

Now you can define your own object (funcion in JavaScript world):

function DateFromYMD(ymd)
{
  return (new Date()).fromYMD(ymd);
}

and now you can simply create date from MySQL date format;

var d=new DateFromYMD('2016-07-24');

I had a similar problem and for me it boiled down to adding the following HTTP headers at the response of the receiving end:

Access-Control-Allow-Headers: Content-Type
Access-Control-Allow-Methods: GET, POST, OPTIONS
Access-Control-Allow-Origin: *

You may prefer not to use the * at the end, but only the domainname of the host sending the data. Like *.example.com

But this is only feasible when you have access to the configuration of the server.

I have this problem sometimes with eclipse. What has corrected it for me is to go to Project Properties / Android and change the build target API to a different version and republish. I'll find that corrected it, then I can change it back to the desired build target.

or

You may need to check your proguard.cfg.

Assuming you have linked your libraries properly and that your library projects have the code you need marked for export, the next step you might want to do is to check your proguard settings and make sure you are not stripping out the classes you need.

I was struggling with this quite a bit after I had my app working going directly to the emulator or device from eclipse. The problem I was having was after the app was published (i.e. gone through proguard) and run on the device it was missing classes that were contained in the project. They were being stripped out somehow.

My problem may have been caused when I had tried to use IntelliJ and have switched back to eclipse.

Here is the proguard file that worked for me:

-optimizationpasses 5
-dontusemixedcaseclassnames
-dontskipnonpubliclibraryclasses
-dontpreverify
-verbose
-optimizations !code/simplification/arithmetic,!field/*,!class/merging/*

-keep public class * extends android.app.Activity
-keep public class * extends android.app.Application
-keep public class * extends android.app.Service
-keep public class * extends android.content.BroadcastReceiver
-keep public class * extends android.content.ContentProvider
-keep public class * extends android.app.backup.BackupAgentHelper
-keep public class * extends android.preference.Preference
-keep public class com.android.vending.licensing.ILicensingService

-keepclasseswithmembers class * {
    native <methods>;
}

-keepclasseswithmembers class * {
    public <init>(android.content.Context, android.util.AttributeSet);
}

-keepclasseswithmembers class * {
    public <init>(android.content.Context, android.util.AttributeSet, int);
}

-keepclassmembers enum * {
    public static **[] values();
    public static ** valueOf(java.lang.String);
}

-keep class * implements android.os.Parcelable {
  public static final android.os.Parcelable$Creator *;
}

Error: Handler “PageHandlerFactory-Integrated” has a bad module “ManagedPipelineHandler” in its module list

I found the articles to fix this issue by simply run the following commands at the command prompt:

%windir%\Microsoft.NET\Framework64\v4.0.30319\aspnet_regiis.exe -i

If the system is 32 bit, it would have looked like this:

%windir%\Microsoft.NET\Framework\v4.0.21006\aspnet_regiis.exe -i

But, when I tried to execute these commands using a command prompt, I got the following error/warning message:

C:\Windows\Microsoft.NET\Framework64\v4.0.30319>aspnet_regiis.exe -i Microsoft (R) ASP.NET RegIIS version 4.0.30319.33440 Administration utility to install and uninstall ASP.NET on the local machine. Copyright (C) Microsoft Corporation. All rights reserved. Start installing ASP.NET (4.0.30319.33440). This option is not supported on this version of the operating system. Administr ators should instead install/uninstall ASP.NET 4.5 with IIS8 using the "Turn Win dows Features On/Off" dialog, the Server Manager management tool, or the dism.exe command line tool. For more details please see http://go.microsoft.com/fwlin k/?LinkID=216771. Finished installing ASP.NET (4.0.30319.33440).**

To fix this on a Windows 8.1, I would suggest to do the following thing.

Solution:

Goto: Turn Windows features on or off -> Internet Information Services -> World Wide Web Services -> Application Development Features -> Enable ASP.NET 4.5

This should resolve the issue.

If you reconfigure IIS7 to use your new location, then there's no problem. Just test that the new location is working, before deleting the old location.

Change IIS7 Inetpub path

• Open %windir%\system32\inetsrv\config\applicationhost.config and search for

%SystemDrive%\inetpub\wwwroot

• Change the path.

My method will be to do something like,

find index of start string in s => i
find index of end string in s => j

substring = substring(i+len(start) to j-1)

Vertical align only works in some select cases. The easiest way to make it function is to set display: table in the parent element's CSS and display: table-cell; to the child element and then apply your vertical align attribute.

Improving the @Derek Springer post with fill length function:

public static String getFileWithDate(String fileName, String fileSaperator, String dateFormat) {
    String FileNamePrefix = fileName.substring(0, fileName.lastIndexOf(fileSaperator));
    String FileNameSuffix = fileName.substring(fileName.lastIndexOf(fileSaperator)+1, fileName.length());
    //System.out.println("File= Prefix~Suffix:"+FileNamePrefix +"~"+FileNameSuffix);
    
    String newFileName = new SimpleDateFormat("'"+FileNamePrefix+"_'"+dateFormat+"'"+fileSaperator+FileNameSuffix+"'").format(new Date());
    System.out.println("New File:"+newFileName);
    return newFileName;
}

Using the funciton and its Output:

String fileSaperator = ".", format = "yyyyMMMdd_HHmm";
getFileWithDate("Text1.txt", fileSaperator, format);
getFileWithDate("Text1.doc", fileSaperator, format);
getFileWithDate("Text1.txt.json", fileSaperator, format);

Output:

Old File:Text1.txt   New File:Text1_2020Nov11_1807.txt
Old File:Text1.doc   New File:Text1_2020Nov11_1807.doc
Old File:Text1.txt.json  New File:Text1.txt_2020Nov11_1807.json

If like me you had installed a MySQL on your server (Windows 2012), and when reinstalling the installer is unable to start the MySQL service. Then you have to completely erase MySQL! I had to do the following steps to be sure :

1. Uninstall MySQL like any any software through the Control Panel -> Uninstall a Program
2. Be sure to erase the MySQL folder where you installed it.
3. Here is the trick (at least for me), you have to erase the C:\ProgramData\MySQL directory. Even if's not visible through the User Interface, enter the address in the windows explorer and you will find it! You will lose all the previous databases and users.
4. Restart your OS
5. When restarted check if the MySQL service is no more present the Windows Services (search for services in windows).
6. Be sure no services that use MySQL (application needing access to MySQL) are active
7. Resinstall MySQL and the service will be able to install itself again.

Got my info from the following blog :http://blogs.iis.net/rickbarber/completely-uninstall-mysql-from-windows

High-Level Design (HLD) involves decomposing a system into modules, and representing the interfaces & invocation relationships among modules. An HLD is referred to as software architecture.

LLD, also known as a detailed design, is used to design internals of the individual modules identified during HLD i.e. data structures and algorithms of the modules are designed and documented.

Now, HLD and LLD are actually used in traditional Approach (Function-Oriented Software Design) whereas, in OOAD, the system is seen as a set of objects interacting with each other.

As per the above definitions, a high-level design document will usually include a high-level architecture diagram depicting the components, interfaces, and networks that need to be further specified or developed. The document may also depict or otherwise refer to work flows and/or data flows between component systems.

Class diagrams with all the methods and relations between classes come under LLD. Program specs are covered under LLD. LLD describes each and every module in an elaborate manner so that the programmer can directly code the program based on it. There will be at least 1 document for each module. The LLD will contain - a detailed functional logic of the module in pseudo code - database tables with all elements including their type and size - all interface details with complete API references(both requests and responses) - all dependency issues - error message listings - complete inputs and outputs for a module.

For the final p-value displayed at the end of summary(), the function uses pf() to calculate from the summary(fit)$fstatistic values.

fstat <- summary(fit)$fstatistic
pf(fstat[1], fstat[2], fstat[3], lower.tail=FALSE)

Source: [1], [2]

SharedPreferences sharedPref = getActivity().getPreferences(Context.MODE_PRIVATE);
SharedPreferences.Editor editor = sharedPref.edit();
editor.putInt(getString(R.string.saved_high_score), newHighScore);
editor.commit();

Always prefer Count and Length properties on a type over the extension method Count(). The former is an O(1) for every type which contains them. The Count() extension method has some type check optimizations that can cause it to run also in O(1) time but will degrade to O(N) if the underlying collection is not one of the few types it knows about.

Use this if you're in the fragment.

@Override
        public void onDestroy() {
            super.onDestroy();

            getFragmentManager().beginTransaction().remove((Fragment) youfragmentname).commitAllowingStateLoss();

        }

You can. Try something like this:

@Path("/todo/{varX}/{varY}")
@Produces({"application/xml", "application/json"})
public Todo whatEverNameYouLike(@PathParam("varX") String varX,
    @PathParam("varY") String varY) {
        Todo todo = new Todo();
        todo.setSummary(varX);
        todo.setDescription(varY);
        return todo;
}

Then call your service with this URL;
http://localhost:8088/JerseyJAXB/rest/todo/summary/description

curl is a command in linux (and a library in php). Curl typically makes an HTTP request.

What you really want to do is make an HTTP (or XHR) request from javascript.

Using this vocab you'll find a bunch of examples, for starters: Sending authorization headers with jquery and ajax

Essentially you will want to call $.ajax with a few options for the header, etc.

$.ajax({
        url: 'https://api.wit.ai/message?v=20140826&q=',
        beforeSend: function(xhr) {
             xhr.setRequestHeader("Authorization", "Bearer 6QXNMEMFHNY4FJ5ELNFMP5KRW52WFXN5")
        }, success: function(data){
            alert(data);
            //process the JSON data etc
        }
})

Non-Latin Answer Extension

Extension to @Stevoisiak's answer and dealing with non-Latin characters. Only one way will display the non-Latin characters to you. The one method is different on both Python 3 and Python 2.

Input

xml = ElementTree.fromstring('<Person Name="???" />')
xml = ElementTree.Element("Person", Name="???")  # Read Note about Python 2

NOTE: In Python 2, when calling the toString(...) code, assigning xml with ElementTree.Element("Person", Name="???")will raise an error...

UnicodeDecodeError: 'ascii' codec can't decode byte 0xed in position 0: ordinal not in range(128)

Output

ElementTree.tostring(xml)
# Python 3 (???): b'<Person Name="&#53356;&#47532;&#49828;" />'
# Python 3 (John): b'<Person Name="John" />'

# Python 2 (???): <Person Name="&#53356;&#47532;&#49828;" />
# Python 2 (John): <Person Name="John" />


ElementTree.tostring(xml, encoding='unicode')
# Python 3 (???): <Person Name="???" />             <-------- Python 3
# Python 3 (John): <Person Name="John" />

# Python 2 (???): LookupError: unknown encoding: unicode
# Python 2 (John): LookupError: unknown encoding: unicode

ElementTree.tostring(xml, encoding='utf-8')
# Python 3 (???): b'<Person Name="\xed\x81\xac\xeb\xa6\xac\xec\x8a\xa4" />'
# Python 3 (John): b'<Person Name="John" />'

# Python 2 (???): <Person Name="???" />             <-------- Python 2
# Python 2 (John): <Person Name="John" />

ElementTree.tostring(xml).decode()
# Python 3 (???): <Person Name="&#53356;&#47532;&#49828;" />
# Python 3 (John): <Person Name="John" />

# Python 2 (???): <Person Name="&#53356;&#47532;&#49828;" />
# Python 2 (John): <Person Name="John" />

By using synchronized on a static method lock you will synchronize the class methods and attributes ( as opposed to instance methods and attributes )

So your assumption is correct.

I am wondering if making the method synchronized is the right approach to ensure thread-safety.

Not really. You should let your RDBMS do that work instead. They are good at this kind of stuff.

The only thing you will get by synchronizing the access to the database is to make your application terribly slow. Further more, in the code you posted you're building a Session Factory each time, that way, your application will spend more time accessing the DB than performing the actual job.

Imagine the following scenario:

Client A and B attempt to insert different information into record X of table T.

With your approach the only thing you're getting is to make sure one is called after the other, when this would happen anyway in the DB, because the RDBMS will prevent them from inserting half information from A and half from B at the same time. The result will be the same but only 5 times ( or more ) slower.

Probably it could be better to take a look at the "Transactions and Concurrency" chapter in the Hibernate documentation. Most of the times the problems you're trying to solve, have been solved already and a much better way.

I know this is an old question, but I wanted to make an answer of my own. here is another way to do this if you "really" want to add to the end of the list instead of using list.add(str) you can do it this way, but I don't recommend.

 String[] items = new String[]{"Hello", "World"};
        ArrayList<String> list = new ArrayList<>();
        Collections.addAll(list, items);
        int endOfList = list.size();
        list.add(endOfList, "This goes end of list");
        System.out.println(Collections.singletonList(list));

this is the 'Compact' way of adding the item to the end of list. here is a safer way to do this, with null checking and more.

String[] items = new String[]{"Hello", "World"};
        ArrayList<String> list = new ArrayList<>();
        Collections.addAll(list, items);
        addEndOfList(list, "Safer way");
        System.out.println(Collections.singletonList(list));

 private static void addEndOfList(List<String> list, String item){
            try{
                list.add(getEndOfList(list), item);
            } catch (IndexOutOfBoundsException e){
                System.out.println(e.toString());
            }
        }

   private static int getEndOfList(List<String> list){
        if(list != null) {
            return list.size();
        }
        return -1;
    }

Heres another way to add items to the end of list, happy coding :)

Try this :

int smallest = Integer.MAX_VALUE;
for(int i=0;i<n;i++)
{
   num=input.nextInt();
   if(num>large)
   {
       large=num;
   }
   if(num<smallest){
       smallest=num;
   }

I had to check the box for the debugger on the phone "always allow on this phone". I then did a adb devices and then entered the adb command to clear the adds. It worked fine. Before that, it did not recognize the pm and other commands

To delete the last output only:

? + L

To clear the terminal completely:

? + K

As mentioned here: Re: BUG #4243: Idle in transaction it is probably best to check your pg_locks table to see what is being locked and that might give you a better clue where the problem lies.

I had the same problem in various different situations, and the solutions i have found work in some but dont work in others so here is a combine solution that works in most situations i have found:

public static void showVirtualKeyboard(Context context, final View view) {
    if (context != null) {
        final InputMethodManager imm =  (InputMethodManager) context.getSystemService(Context.INPUT_METHOD_SERVICE);
        view.clearFocus();

        if(view.isShown()) {
            imm.showSoftInput(view, 0);
            view.requestFocus();
        } else {
            view.addOnAttachStateChangeListener(new View.OnAttachStateChangeListener() {
                @Override
                public void onViewAttachedToWindow(View v) {
                    view.post(new Runnable() {
                        @Override
                        public void run() {
                            view.requestFocus();
                            imm.showSoftInput(view, 0);
                        }
                    });

                    view.removeOnAttachStateChangeListener(this);
                }

                @Override
                public void onViewDetachedFromWindow(View v) {
                    view.removeOnAttachStateChangeListener(this);
                }
            });
        }
    }
}

The LEA instruction can be used to avoid time consuming calculations of effective addresses by the CPU. If an address is used repeatedly it is more effective to store it in a register instead of calculating the effective address every time it is used.

If you are looking for a very very simple implementation. (This worked for me in Swift 2)

 let imageURL = NSURL(string: "https://farm2.staticflickr.com/1591/26078338233_d1466b7da2_m.jpg")
 let imagedData = NSData(contentsOfURL: imageURL!)!
 imageView?.image = UIImage(data: imagedData)

I implemented within a tableview with a custom cell that has only a image

func tableView(tableView: UITableView, cellForRowAtIndexPath indexPath: NSIndexPath) -> UITableViewCell{

        let cell = tableView.dequeueReusableCellWithIdentifier("theCell", forIndexPath: indexPath) as! customTableViewCell

        let imageURL = NSURL(string: "https://farm2.staticflickr.com/1591/26078338233_d1466b7da2_m.jpg")

        let imagedData = NSData(contentsOfURL: imageURL!)!

        cell.imageView?.image = UIImage(data: imagedData)

        return cell

    }

If your file has only one main function that you want to call/expose, then you can also just start the file with:

Param($Param1)

You can then call it e.g. as follows:

.\MyFunctions.ps1 -Param1 'value1'

This makes it much more convenient if you want to easily call just that function without having to import the function.

Adding \n and/or \r in the middle of the string, and having a very long line of code, like in second example, doesn't feel right : when you read the code, you don't see the result, and you have to scroll.

In this kind of situations, I always use Heredoc (Or Nowdoc, if using PHP >= 5.3) : easy to write, easy to read, no need for super-long lines, ...

For instance :

$var = 'World';
$str = <<<MARKER
this is a very
long string that
doesn't require
horizontal scrolling, 
and interpolates variables :
Hello, $var!
MARKER;

Just one thing : the end marker (and the ';' after it) must be the only thing on its line : no space/tab before or after !

Putty usually comes with the "plink" utility.
This is essentially the "ssh" command line command implemented as a windows .exe.
It pretty well documented in the putty manual under "Using the command line tool plink".

You just need to wrap a command like:

plink root@myserver /etc/backups/do-backup.sh

in a .bat script.

You can also use common shell constructs, like semicolons to execute multiple commands. e.g:

plink read@myhost ls -lrt /home/read/files;/etc/backups/do-backup.sh

Another way is to call an external process such as curl.exe. Curl by default displays a progress bar, average download speed, time left, and more all formatted neatly in a table. Put curl.exe in the same directory as your script

from subprocess import call
url = ""
call(["curl", {url}, '--output', "song.mp3"])

Note: You cannot specify an output path with curl, so do an os.rename afterwards

For mysql 8.0 version you can do this:

mysql.server stop
mysql.server start --secure-file-priv=''

It worked for me on Mac High Sierra.

If you'd like to simply open a fancybox when a javascript function is called. Perhaps in your code flow and not as a result of a click. Here's how you do it:

function openFancybox() {
  $.fancybox({
     'autoScale': true,
     'transitionIn': 'elastic',
     'transitionOut': 'elastic',
     'speedIn': 500,
     'speedOut': 300,
     'autoDimensions': true,
     'centerOnScroll': true,
     'href' : '#contentdiv'
  });
}

This creates the box using "contentdiv" and opens it.

The answers here helped me up to a point, but I had a problem on HTML5 Number input fields when clicking the up/down buttons in Chrome.

If you click one of the buttons, and left the mouse over the button the number would keep changing as if you were holding the mouse button because the mouseup was being thrown away.

I solved this by removing the mouseup handler as soon as it had been triggered as below:

    $("input:number").focus(function () {
        var $elem = $(this);
        $elem.select().mouseup(function (e) {
            e.preventDefault();
            $elem.unbind(e.type);
        });
    });

Hope this helps people in the future...

Finally in SQLalchemy1.2 version, this new implementation is added to use psycopg2.extras.execute_batch() instead of executemany when you initialize your engine with use_batch_mode=True like:

engine = create_engine(
    "postgresql+psycopg2://scott:tiger@host/dbname",
    use_batch_mode=True)

http://docs.sqlalchemy.org/en/latest/changelog/migration_12.html#change-4109

Then someone would have to use SQLalchmey won't bother to try different combinations of sqla and psycopg2 and direct SQL together..

The most upvoted answer, from Kris Selbekk, it is totally right. It is important to highlight though that it takes a functional approach, you will be looping through the this.props.comments array twice, the second time(looping) it will most probable skip a few elements that where filtered, but in case no comment was filtered you will loop through the whole array twice. If performance is not a concern in you project that is totally fine. In case performance is important a guard clause would be more appropriated as you would loop the array only once:

return this.props.comments.map((comment) => {
  if (!comment.hasComments) return null; 

  return (
    <div key={comment.id}>         
      <CommentItem className="MainComment"/>
        {this.props.comments.map(commentReply => {             
          if (commentReply.replyTo !== comment.id) return null;

          return <CommentItem className="SubComment"/>
        })} 
    </div>          
  ) 
}

The main reason I'm pointing this out is because as a Junior Developer I did a lot of those mistakes(like looping the same array multiple times), so I thought i was worth mention it here.

PS: I would refactor your react component even more, as I'm not in favour of heavy logic in the html part of a JSX, but that is out of the topic of this question.

Try setting a custom CultureInfo for CurrentCulture and CurrentUICulture.

Globalization.CultureInfo customCulture = new Globalization.CultureInfo("en-US", true);

customCulture.DateTimeFormat.ShortDatePattern = "yyyy-MM-dd h:mm tt";

System.Threading.Thread.CurrentThread.CurrentCulture = customCulture;
System.Threading.Thread.CurrentThread.CurrentUICulture = customCulture;

DateTime newDate = System.Convert.ToDateTime(DateTime.Now.ToString("yyyy-MM-dd h:mm tt"));

Yes, you can use GT for free. See the post with explanation. And look at repo on GitHub.

UPD 19.03.2019 Here is a version for browser on GitHub.

ALTER TABLE <tablename> CHANGE COLUMN <colname> <colname> VARCHAR(65536);

You have to list the column name twice, even if you aren't changing its name.

Note that after you make this change, the data type of the column will be MEDIUMTEXT.

Miky D is correct, the MODIFY command can do this more concisely.

Re the MEDIUMTEXT thing: a MySQL row can be only 65535 bytes (not counting BLOB/TEXT columns). If you try to change a column to be too large, making the total size of the row 65536 or greater, you may get an error. If you try to declare a column of VARCHAR(65536) then it's too large even if it's the only column in that table, so MySQL automatically converts it to a MEDIUMTEXT data type.

mysql> create table foo (str varchar(300));
mysql> alter table foo modify str varchar(65536);
mysql> show create table foo;
CREATE TABLE `foo` (
  `str` mediumtext
) ENGINE=MyISAM DEFAULT CHARSET=latin1
1 row in set (0.00 sec)

I misread your original question, you want VARCHAR(65353), which MySQL can do, as long as that column size summed with the other columns in the table doesn't exceed 65535.

mysql> create table foo (str1 varchar(300), str2 varchar(300));
mysql> alter table foo modify str2 varchar(65353);
ERROR 1118 (42000): Row size too large. 
The maximum row size for the used table type, not counting BLOBs, is 65535. 
You have to change some columns to TEXT or BLOBs

Complementing what people said, remember that the entire string is an array:

$string = "Lorem ipsum lá lá lá";

$string[0] = "B";

echo $string;

"Borem ipsum lá lá lá"

If you need a CakePHP Docker Container with MySQL, I have created a Docker image for that purpose! No need to worry about setting it up. It just works!

• GitHub: https://github.com/marcellodesales/php-apache-mysql-4-cakephp-docker
• DockerHub: https://hub.docker.com/r/marcellodesales/php-apache-cakephp-mysql/

Here's how I installed in Ubuntu-based image:

https://github.com/marcellodesales/php-apache-mysql-4-cakephp-docker/blob/master/Dockerfile#L8

RUN docker-php-ext-install mysql mysqli pdo pdo_mysql

Building and running your application is just a 2 step process (considering you are in the current directory of the app):

$ docker build -t myCakePhpApp .
$ docker run -ti myCakePhpApp

Swift 3 with a Date extension

extension Date {
    func string(with format: String) -> String {
        let dateFormatter = DateFormatter()
        dateFormatter.dateFormat = format
        return dateFormatter.string(from: self)
    }
}

Then you can use it like so:

let date = Date()
date.string(with: "MMM dd, yyyy")

creating a reversed animation is kinda an overkill to a simple problem, what u need is

animation-direction: reverse

however this wont work on its own because animation spec is so dump that they forgot to add a way to restart the animation so here is how you do it with the help of js

let item = document.querySelector('.item')_x000D_
_x000D_
// play normal_x000D_
item.addEventListener('mouseover', () => {_x000D_
  item.classList.add('active')_x000D_
})_x000D_
_x000D_
// play in reverse_x000D_
item.addEventListener('mouseout', () => {_x000D_
  item.style.opacity = 0 // avoid showing the init style while switching the 'active' class_x000D_
_x000D_
  item.classList.add('in-active')_x000D_
  item.classList.remove('active')_x000D_
_x000D_
  // force dom update_x000D_
  setTimeout(() => {_x000D_
    item.classList.add('active')_x000D_
    item.style.opacity = ''_x000D_
  }, 5)_x000D_
_x000D_
  item.addEventListener('animationend', onanimationend)_x000D_
})_x000D_
_x000D_
function onanimationend() {_x000D_
  item.classList.remove('active', 'in-active')_x000D_
  item.removeEventListener('animationend', onanimationend)_x000D_
}

@keyframes spin {_x000D_
  0% {_x000D_
    transform: rotateY(0deg);_x000D_
  }_x000D_
  100% {_x000D_
    transform: rotateY(180deg);_x000D_
  }_x000D_
}_x000D_
_x000D_
div {_x000D_
  background: black;_x000D_
  padding: 1rem;_x000D_
  display: inline-block;_x000D_
}_x000D_
_x000D_
.item {_x000D_
  /* because span cant be animated */_x000D_
  display: block;_x000D_
  color: yellow;_x000D_
  font-size: 2rem;_x000D_
}_x000D_
_x000D_
.item.active {_x000D_
  animation: spin 1s forwards;_x000D_
  animation-timing-function: ease-in-out;_x000D_
}_x000D_
_x000D_
.item.in-active {_x000D_
  animation-direction: reverse;_x000D_
}

<div>_x000D_
  <span class="item">ABC</span>_x000D_
</div>

There is a major gotcha associated with getting an ASCII code of a char value.

In the proper sense, it can't be done.

It's because char has a range of 65535 whereas ASCII is restricted to 128. There is a huge amount of characters that have no ASCII representation at all.

The proper way would be to use a Unicode code point which is the standard numerical equivalent of a character in the Java universe.

Thankfully, Unicode is a complete superset of ASCII. That means Unicode numbers for Latin characters are equal to their ASCII counterparts. For example, A in Unicode is U+0041 or 65 in decimal. In contrast, ASCII has no mapping for 99% of char-s. Long story short:

char ch = 'A';
int cp = String.valueOf(ch).codePointAt(0);

Furthermore, a 16-bit primitive char actually represents a code unit, not a character and is thus restricted to Basic Multilingual Plane, for historical reasons. Entities beyond it require Character objects which deal away with the fixed bit-length limitation.

The browser is trying to convert chucknorris into hex colour code, because it’s not a valid value.

1. In chucknorris, everything except c is not a valid hex value.
2. So it gets converted to c00c00000000.
3. Which becomes #c00000, a shade of red.

This seems to be an issue primarily with Internet Explorer and Opera (12) as both Chrome (31) and Firefox (26) just ignore this.

P.S. The numbers in brackets are the browser versions I tested on.

On a lighter note

Chuck Norris doesn’t conform to web standards. Web standards conform to him. #BADA55

You can use the following example to store a query result in a variable using PL/pgSQL:

 select * into demo from maintenanceactivitytrack ; 
    raise notice'p_maintenanceid:%',demo;

I had this issue for days looking for answers. My error log was similar to this npm just won't install node sass The only problem was the node version. Maybe it can help some of you.

I downgraded my Node.js from 9.3.0 to 6.12.2 and run:

npm update

ModHeader extension for Google Chrome, is also a good option. You can just set the Headers you want and just enter the URL in the browser, it will automatically take the headers from the extension when you hit the url. Only thing is, it will send headers for each and every URL you will hit so you have to disable or delete it after use.

Python's range() can only do integers, not floating point. In your specific case, you can use a list comprehension instead:

[x * 0.1 for x in range(0, 10)]

(Replace the call to range with that expression.)

For the more general case, you may want to write a custom function or generator.

Start your Local SQL Server Service

• Start SQL Config Manager: Click Start -> Microsoft SQL Server 2008 R2 -> SQL Server Configuration Manager
• Start SQL Services: Set the SQL Server (SQLEXPRESS) and SQL Server Browser services to automatic start mode. Right-click each service -> Properties -> Go into the Service Tab

This will ensure they start up again if you restart your computer. Please check to ensure the state is "Running" for both services.

Login and authenticate with your Local SQL Server

• Now open up SQL Server Management Studio and click "Connect to Object Explorer" and select Server Name:

[Your PC name]\SQLEXPRESS

Example: 8540P-KL\SQLEXPRESS or (localhost)\SQLEXPRESS

• To find your PC name: Right click My Computer -> Properties -> Computer Name tab

• Alternative: Login using windows authentication: Using the user name [Your Domain]/[Your User Name]

Setup User Account

• Create a new Login acct: In SQL Mgmt Studio -> Expand your local Server -> Security -> Right click on Logins -> New Login

• Set Password settings on New User Account: Uncheck Enforce password policy, password expiration and user must change pw(Since this is local) Default database -> Your Database

• Grant roles to New User Account: User Mapping Page -> Map to your db and grant db_owner role Status Page -> Grant Permission to connect and Enable Login

Setup Access Permissions/Settings for User

• Enable all auth modes: Right click your Local Server -> Properties -> Security Tab -> Enable SQL Server and Windows Authentication Mode
• Enable TCP/IP: Open SQL Server Configuration Manager -> SQL Server Network Configuration -> Protocols for SQLEXPRESS -> Enable TCP/IP
• Restart SQL Server Service: You will have to restart the SQL Server(SQLEXPRESS) after enabling TCP/IP

Database Properties File for Spring Project

• database.url=jdbc:jtds:sqlserver://[local PC Computer
  name];instance=SQLEXPRESS;DatabaseName=[db name];

• database.username=[Your user name] database.password=[Your password]

• database.driverClassName=net.sourceforge.jtds.jdbc.Driver

If you want to view larger screen shots and better formatting of the answer with more details please view the blog article below: Setting up a Local Instance of SQL Server 2008 Blog Post:

Great answer by jheddings. I would like to improve it by allowing referencing of aggregated arrays or collections of objects, so that propertyName could be property1.property2[X].property3:

    public static object GetPropertyValue(object srcobj, string propertyName)
    {
        if (srcobj == null)
            return null;

        object obj = srcobj;

        // Split property name to parts (propertyName could be hierarchical, like obj.subobj.subobj.property
        string[] propertyNameParts = propertyName.Split('.');

        foreach (string propertyNamePart in propertyNameParts)
        {
            if (obj == null)    return null;

            // propertyNamePart could contain reference to specific 
            // element (by index) inside a collection
            if (!propertyNamePart.Contains("["))
            {
                PropertyInfo pi = obj.GetType().GetProperty(propertyNamePart);
                if (pi == null) return null;
                obj = pi.GetValue(obj, null);
            }
            else
            {   // propertyNamePart is areference to specific element 
                // (by index) inside a collection
                // like AggregatedCollection[123]
                //   get collection name and element index
                int indexStart = propertyNamePart.IndexOf("[")+1;
                string collectionPropertyName = propertyNamePart.Substring(0, indexStart-1);
                int collectionElementIndex = Int32.Parse(propertyNamePart.Substring(indexStart, propertyNamePart.Length-indexStart-1));
                //   get collection object
                PropertyInfo pi = obj.GetType().GetProperty(collectionPropertyName);
                if (pi == null) return null;
                object unknownCollection = pi.GetValue(obj, null);
                //   try to process the collection as array
                if (unknownCollection.GetType().IsArray)
                {
                    object[] collectionAsArray = unknownCollection as object[];
                    obj = collectionAsArray[collectionElementIndex];
                }
                else
                {
                    //   try to process the collection as IList
                    System.Collections.IList collectionAsList = unknownCollection as System.Collections.IList;
                    if (collectionAsList != null)
                    {
                        obj = collectionAsList[collectionElementIndex];
                    }
                    else
                    {
                        // ??? Unsupported collection type
                    }
                }
            }
        }

        return obj;
    }

Here is another strtok() implementation, which has the ability to recognize consecutive delimiters (standard library's strtok() does not have this)

The function is a part of BSD licensed string library, called zString. You are more than welcome to contribute :)

https://github.com/fnoyanisi/zString

char *zstring_strtok(char *str, const char *delim) {
    static char *static_str=0;      /* var to store last address */
    int index=0, strlength=0;       /* integers for indexes */
    int found = 0;                  /* check if delim is found */

    /* delimiter cannot be NULL
    * if no more char left, return NULL as well
    */
    if (delim==0 || (str == 0 && static_str == 0))
        return 0;

    if (str == 0)
        str = static_str;

    /* get length of string */
    while(str[strlength])
        strlength++;

    /* find the first occurance of delim */
    for (index=0;index<strlength;index++)
        if (str[index]==delim[0]) {
            found=1;
            break;
        }

    /* if delim is not contained in str, return str */
    if (!found) {
        static_str = 0;
        return str;
    }

    /* check for consecutive delimiters
    *if first char is delim, return delim
    */
    if (str[0]==delim[0]) {
        static_str = (str + 1);
        return (char *)delim;
    }

    /* terminate the string
    * this assignmetn requires char[], so str has to
    * be char[] rather than *char
    */
    str[index] = '\0';

    /* save the rest of the string */
    if ((str + index + 1)!=0)
        static_str = (str + index + 1);
    else
        static_str = 0;

        return str;
}

As mentioned in previous posts, since strtok(), or the one I implmented above, relies on a static *char variable to preserve the location of last delimiter between consecutive calls, extra care should be taken while dealing with multi-threaded aplications.

Yes, use the jQuery contains selector.

Before going to answer read this Documentation once. Then you clearly understand the answer.

Try this It may work for you.

Object.keys(data.shareInfo[i]).length

In both your examples, local variables of Object* type are allocated on the stack. The compiler is free to produce the same code from both snippets if there is no way for your program to detect a difference.

The memory area for global variables is the same as the memory area for static variables - it's neither on the stack nor on the heap. You can place variables in that area by declaring them static inside the function. The consequence of doing so is that the instance becomes shared among concurrent invocations of your function, so you need to carefully consider synchronization when you use statics.

Here is a link to a discussion of the memory layout of a running C program.

In Oracle, you can simply subtract two dates and get the difference in days. Also note that unlike SQL Server or MySQL, in Oracle you cannot perform a select statement without a from clause. One way around this is to use the builtin dummy table, dual:

SELECT TO_DATE('2000-01-02', 'YYYY-MM-DD') -  
       TO_DATE('2000-01-01', 'YYYY-MM-DD') AS DateDiff
FROM   dual

On Android Studio 1.0.2 you only need to go VCS-> Import into Version control -> Share Project on GitHub.

Pop up will appear asking for the repo name.

adb kill-server and adb start-server only control the adb daemon on the PC side. You need to restart adbd daemon on the device itself after reverting the service.adb.root property change done by adb root:

~$ adb shell id
uid=2000(shell) gid=2000(shell)

~$ adb root
restarting adbd as root

~$ adb shell id
uid=0(root) gid=0(root)

~$ adb shell 'setprop service.adb.root 0; setprop ctl.restart adbd'

~$ adb shell id
uid=2000(shell) gid=2000(shell)

If you are set on using EXISTS you can use the below in SQL Server:

SELECT * FROM TableB as b
WHERE NOT EXISTS
(
   SELECT * FROM TableA as a
   WHERE b.id = a.id
)

If you are creating the SVG programmatically you can simplify it and do something like this:

  <g>
      <rect x={x} y={y} width={width} height={height} />
      <text
          x={x + width / 2}
          y={y + height / 2}
          dominant-baseline="middle"
          text-anchor="middle"
      >
          {label}
      </text>
  </g>

If you have been given a database file and have not installed the correct server (either SQLite or MySQL), try this tool: https://dbconvert.com/sqlite/mysql/ The trial version allows converting the first 50 records of each table, the rest of the data is watermarked. This is a Windows program, and can either dump into a running database server, or can dump output to a .sql file

nrodic has an amazing answer, and I just wanted to give a small update to let you know that with a small extra function you can extend the contains methid to be case insenstive:

$.expr[":"].contains = $.expr.createPseudo(function(arg) {
    return function( elem ) {
        return $(elem).text().toUpperCase().indexOf(arg.toUpperCase()) >= 0;
    };
});

Use struct.pack to convert the integer values into binary bytes, then write the bytes. E.g.

newFile.write(struct.pack('5B', *newFileBytes))

However I would never give a binary file a .txt extension.

The benefit of this method is that it works for other types as well, for example if any of the values were greater than 255 you could use '5i' for the format instead to get full 32-bit integers.

If you are used to the compiler catching abstract instantiation violations in other languages, then the Objective-C behavior is disappointing.

As a late binding language it is clear that Objective-C cannot make static decisions on whether a class truly is abstract or not (you might be adding functions at runtime...), but for typical use cases this seems like a shortcoming. I would prefer the compiler flat-out prevented instantiations of abstract classes instead of throwing an error at runtime.

Here is a pattern we are using to get this type of static checking using a couple of techniques to hide initializers:

//
//  Base.h
#define UNAVAILABLE __attribute__((unavailable("Default initializer not available.")));

@protocol MyProtocol <NSObject>
-(void) dependentFunction;
@end

@interface Base : NSObject {
    @protected
    __weak id<MyProtocol> _protocolHelper; // Weak to prevent retain cycles!
}

- (instancetype) init UNAVAILABLE; // Prevent the user from calling this
- (void) doStuffUsingDependentFunction;
@end

//
//  Base.m
#import "Base.h"

// We know that Base has a hidden initializer method.
// Declare it here for readability.
@interface Base (Private)
- (instancetype)initFromDerived;
@end

@implementation Base
- (instancetype)initFromDerived {
    // It is unlikely that this becomes incorrect, but assert
    // just in case.
    NSAssert(![self isMemberOfClass:[Base class]],
             @"To be called only from derived classes!");
    self = [super init];
    return self;
}

- (void) doStuffUsingDependentFunction {
    [_protocolHelper dependentFunction]; // Use it
}
@end

//
//  Derived.h
#import "Base.h"

@interface Derived : Base
-(instancetype) initDerived; // We cannot use init here :(
@end

//
//  Derived.m
#import "Derived.h"

// We know that Base has a hidden initializer method.
// Declare it here.
@interface Base (Private)
- (instancetype) initFromDerived;
@end

// Privately inherit protocol
@interface Derived () <MyProtocol>
@end

@implementation Derived
-(instancetype) initDerived {
    self= [super initFromDerived];
    if (self) {
        self->_protocolHelper= self;
    }
    return self;
}

// Implement the missing function
-(void)dependentFunction {
}
@end

You don't need both hibernate.cfg.xml and persistence.xml in this case. Have you tried removing hibernate.cfg.xml and mapping everything in persistence.xml only?

But as the other answer also pointed out, this is not okay like this:

@Id
@JoinColumn(name = "categoria") 
private String id;

Didn't you want to use @Column instead?

For those who use Github, they have a branch network viewer that seems easier to read

you can use generic class:

class Wrapped<T>  {
    private T _value;

    public Action ValueChanged;

    public T Value
    {
        get => _value;

        set
        {
            _value = value;
            OnValueChanged();
        }
    }

    protected virtual void OnValueChanged() => ValueChanged?.Invoke() ;
}

and will be able to do the following:

var i = new Wrapped<int>();

i.ValueChanged += () => { Console.WriteLine("changed!"); };

i.Value = 10;
i.Value = 10;
i.Value = 10;
i.Value = 10;

Console.ReadKey();

result:

changed!
changed!
changed!
changed!
changed!
changed!
changed!

when using count(*) the result is {'count(*)': 9}

-- where 9 represents the number of rows in the table, for the instance.

So, in order to fetch the just the number, this worked in my case, using mysql 8.

cursor.fetchone()['count(*)']

I've used the "slugify" method from underscore.string and it worked like a charm:

https://github.com/epeli/underscore.string#slugifystring--string

The cool thing is that you can really just import this method, don't need to import the entire library.

input:not([value=""])

This works because we are selecting the input only when there isn't an empty string.

To be able to use a lib project you need to include it in your application's settings.gradle add:

include '..:ExpandableButtonMenu:library'

and then in your build.gradle add:

compile project(':..:ExpandableButtonMenu:library') 

place ExpandableButtonMenu project along side your own (same folder)

see this How to build an android library with Android Studio and gradle? for more details.

From Apple Docs

You can use subscript syntax to retrieve a value from the dictionary for a particular key. Because it is possible to request a key for which no value exists, a dictionary’s subscript returns an optional value of the dictionary’s value type. If the dictionary contains a value for the requested key, the subscript returns an optional value containing the existing value for that key. Otherwise, the subscript returns nil:

https://developer.apple.com/documentation/swift/dictionary

if let airportName = airports["DUB"] {
    print("The name of the airport is \(airportName).")
} else {
    print("That airport is not in the airports dictionary.")
}
// prints "The name of the airport is Dublin Airport."

Try this:

<a href="www.mypage.com" onclick="history.go(-1); return false;"> Link </a>

The simplest way is to edit .git/config

Here is an example file

[core]
        repositoryformatversion = 0
        filemode = true
        bare = false
        logallrefupdates = true
        ignorecase = true
[remote "origin"]
        url = [email protected]:repo-name
        fetch = +refs/heads/*:refs/remotes/origin/*
[branch "test1"]
        remote = origin
        merge = refs/heads/test1
[branch "master"]
        remote = origin
        merge = refs/heads/master

Delete the line merge = refs/heads/test1 in the test1 branch section

Try using the \t character in your strings

Instructions as of Dec 2018:

1. Visit the site you want in Chrome
2. From menu select "More tools" > "Create shortcut..."
3. From apps (can visit chrome://apps/), right click site then enable "Open as window"

Now when you open the shortcut it will open in a window without toolbar.

This will print the data in columns and comes to new line once last column is reached.

ResultSetMetaData resultSetMetaData = res.getMetaData();
int columnCount = resultSetMetaData.getColumnCount();
for(int i =1; i<=columnCount; i++){
                if(!(i==columnCount)){

                    System.out.print(res.getString(i)+"\t");
                }
                else{
                    System.out.println(res.getString(i));
                }

            }

You either want to select an anonymous type:

var dataset2 = from recordset 
               in entities.processlists 
               where recordset.ProcessName == processname 
               select new 
               {
                recordset.ServerName, 
                recordset.ProcessID, 
                recordset.Username
               };

But you cannot cast that to another type, so I guess you want something like this:

var dataset2 = from recordset 
               in entities.processlists 
               where recordset.ProcessName == processname 

               // Select new concrete type
               select new PInfo
               {
                ServerName = recordset.ServerName, 
                ProcessID = recordset.ProcessID, 
                Username = recordset.Username
               };

Hide scroll bar, but while still being able to scroll using CSS

To hide the scrollbar use -webkit- because it is supported by major browsers (Google Chrome, Safari or newer versions of Opera). There are many other options for the other browsers which are listed below:

    -webkit- (Chrome, Safari, newer versions of Opera):
    .element::-webkit-scrollbar { width: 0 !important }
    -moz- (Firefox):
    .element { overflow: -moz-scrollbars-none; }
    -ms- (Internet Explorer +10):
    .element { -ms-overflow-style: none; }

ref: https://www.geeksforgeeks.org/hide-scroll-bar-but-while-still-being-able-to-scroll-using-css/

In fact, AF_ and PF_ are the same thing. There are some words on Wikipedia will clear your confusion

The original design concept of the socket interface distinguished between protocol types (families) and the specific address types that each may use. It was envisioned that a protocol family may have several address types. Address types were defined by additional symbolic constants, using the prefix AF_ instead of PF_. The AF_-identifiers are intended for all data structures that specifically deal with the address type and not the protocol family. However, this concept of separation of protocol and address type has not found implementation support and the AF_-constants were simply defined by the corresponding protocol identifier, rendering the distinction between AF_ versus PF_ constants a technical argument of no significant practical consequence. Indeed, much confusion exists in the proper usage of both forms.

Could you try this out?

=IIF((Fields!OpeningStock.Value=0) AND (Fields!GrossDispatched.Value=0) AND 
(Fields!TransferOutToMW.Value=0) AND (Fields!TransferOutToDW.Value=0) AND 
(Fields!TransferOutToOW.Value=0) AND (Fields!NetDispatched.Value=0) AND (Fields!QtySold.Value=0) 
AND (Fields!StockAdjustment.Value=0) AND (Fields!ClosingStock.Value=0),True,False)

Note: Setting Hidden to False will make the row visible

check this code:

CREATE TRIGGER trig_Update_Employee ON [EmployeeResult] FOR INSERT AS Begin   
    Insert into Employee (Name, Department)  
    Select Distinct i.Name, i.Department   
        from Inserted i
        Left Join Employee e on i.Name = e.Name and i.Department = e.Department
        where e.Name is null
End

 1. Create the database

CREATE DATABASE db_name;

 2. Create the username for the database db_name

GRANT ALL PRIVILEGES ON db_name.* TO 'username'@'localhost' IDENTIFIED BY 'password';

 3. Use the database

USE db_name;

 4. Finally you are in database db_name and then execute the commands like create , select and insert operations.

You could convert it to a string instead of printing the list directly:

print(", ".join(LIST))

If the elements in the list aren't strings, you can convert them to string using either repr (if you want quotes around strings) or str (if you don't), like so:

LIST = [1, "foo", 3.5, { "hello": "bye" }]
print( ", ".join( repr(e) for e in LIST ) )

Which gives the output:

1, 'foo', 3.5, {'hello': 'bye'}

Return data as XML

SELECT CONVERT(XML, [Data]) AS [Value]
FROM [dbo].[FormData]
WHERE [UID] LIKE '{my-uid}'

Make sure you set a reasonable limit in the SSMS options window, depending on the result you're expecting.

This will work if the text you're returning doesn't contain unencoded characters like & instead of & that will cause the XML conversion to fail.

Returning data using PowerShell

For this you will need the PowerShell SQL Server module installed on the machine on which you'll be running the command.

If you're all set up, configure and run the following script:

Invoke-Sqlcmd -Query "SELECT [Data] FROM [dbo].[FormData] WHERE [UID] LIKE '{my-uid}'" -ServerInstance "database-server-name" -Database "database-name" -Username "user" -Password "password" -MaxCharLength 10000000 | Out-File -filePath "C:\db_data.txt"

Make sure you set the -MaxCharLength parameter to a value that suits your needs.

I faced the same problem when I renamed my repository on GitHub. I tried to push at which point I got the error

fatal: 'origin' does not appear to be a git repository
fatal: The remote end hung up unexpectedly

I had to change the URL using

git remote set-url origin ssh://[email protected]/username/newRepoName.git

After this all commands started working fine. You can check the change by using

git remote -v

In my case after successfull change it showed correct renamed repo in URL

[aniket@alok Android]$ git remote -v
origin  ssh://[email protected]/aniket91/TicTacToe.git (fetch)
origin  ssh://[email protected]/aniket91/TicTacToe.git (push)

Just for the record:

DirectoryInfo di = new DirectoryInfo(currentDirName);
FileInfo[] smFiles = di.GetFiles("*.txt");
string fileNames = String.Join(", ", smFiles.Select<FileInfo, string>(fi => Path.GetFileNameWithoutExtension(fi.FullName)));

This way you don't use StringBuilder but String.Join(). Also please remark that Path.GetFileNameWithoutExtension() needs a full path (fi.FullName), not fi.Name as I saw in one of the other answers.

Another way is to use meta tags. Whatever data is supposed to be passed to your JavaScript can be assigned like this:

<meta name="yourdata" content="whatever" />
<meta name="moredata" content="more of this" />

The data can then be pulled from the meta tags like this (best done in a DOMContentLoaded event handler):

var data1 = document.getElementsByName('yourdata')[0].content;
var data2 = document.getElementsByName('moredata')[0].content;

Absolutely no hassle with jQuery or the likes, no hacks and workarounds necessary, and works with any HTML version that supports meta tags...

A "u" prefix denotes the value has type unicode rather than str.

Raw string literals, with an "r" prefix, escape any escape sequences within them, so len(r"\n") is 2. Because they escape escape sequences, you cannot end a string literal with a single backslash: that's not a valid escape sequence (e.g. r"\").

"Raw" is not part of the type, it's merely one way to represent the value. For example, "\\n" and r"\n" are identical values, just like 32, 0x20, and 0b100000 are identical.

You can have unicode raw string literals:

>>> u = ur"\n"
>>> print type(u), len(u)
<type 'unicode'> 2

The source file encoding just determines how to interpret the source file, it doesn't affect expressions or types otherwise. However, it's recommended to avoid code where an encoding other than ASCII would change the meaning:

Files using ASCII (or UTF-8, for Python 3.0) should not have a coding cookie. Latin-1 (or UTF-8) should only be used when a comment or docstring needs to mention an author name that requires Latin-1; otherwise, using \x, \u or \U escapes is the preferred way to include non-ASCII data in string literals.

I think that the best solution for drawing text in OpenGL is texture fonts, I work with them for a long time. They are flexible, fast and nice looking (with some rear exceptions). I use special program for converting font files (.ttf for example) to texture, which is saved to file of some internal "font" format (I've developed format and program based on http://content.gpwiki.org/index.php/OpenGL:Tutorials:Font_System though my version went rather far from the original supporting Unicode and so on). When starting the main app, fonts are loaded from this "internal" format. Look link above for more information.

With such approach the main app doesn't use any special libraries like FreeType, which is undesirable for me also. Text is being drawn using standard OpenGL functions.

You need to enable IsBodyHTML

message.IsBodyHtml = true; //This will enable using HTML elements in email body
message.Body ="First Line <br /> second line";

set your CssClass property in textbox1 to "cupper", then in page content create new css class :

<style type="text/css">.cupper {text-transform:uppercase;}</style>

Then, enjoy it ...

add

z-index:1151;

to the style sheet in

.datepicker

        //install cors using terminal/command  
        $ npm install cors

        //If your using express in your node server just add
        var cors = require('cors');
        app.use(cors())


       //and re-run the server, your problem is rectified][1]][1]
       **If you won't be understood then see below image**

https://i.stack.imgur.com/Qeqmc.png

For this you just need to add content attribute and font-family attribute to the required element via :before or :after wherever applicable.

For example: I wanted to attach an attachment icon after all the a element inside my post. So, first I need to search if such icon exists in fontawesome. Like in the case I found it here, i.e. fa fa-paperclip. Then I would right click the icon there, and go the ::before pseudo property to fetch out the content tag it is using, which in my case I found to be \f0c6. Then I would use that in my css like this:

   .post a:after {
     font-family: FontAwesome,
     content: " \f0c6" /* I added a space before \ for better UI */
    }

Update: ASP.NET Core does not have a SynchronizationContext. If you are on ASP.NET Core, it does not matter whether you use ConfigureAwait(false) or not.

For ASP.NET "Full" or "Classic" or whatever, the rest of this answer still applies.

Original post (for non-Core ASP.NET):

This video by the ASP.NET team has the best information on using async on ASP.NET.

I had read that it is more performant since it doesn't have to switch thread contexts back to the original thread context.

This is true with UI applications, where there is only one UI thread that you have to "sync" back to.

In ASP.NET, the situation is a bit more complex. When an async method resumes execution, it grabs a thread from the ASP.NET thread pool. If you disable the context capture using ConfigureAwait(false), then the thread just continues executing the method directly. If you do not disable the context capture, then the thread will re-enter the request context and then continue to execute the method.

So ConfigureAwait(false) does not save you a thread jump in ASP.NET; it does save you the re-entering of the request context, but this is normally very fast. ConfigureAwait(false) could be useful if you're trying to do a small amount of parallel processing of a request, but really TPL is a better fit for most of those scenarios.

However, with ASP.NET Web Api, if your request is coming in on one thread, and you await some function and call ConfigureAwait(false) that could potentially put you on a different thread when you are returning the final result of your ApiController function.

Actually, just doing an await can do that. Once your async method hits an await, the method is blocked but the thread returns to the thread pool. When the method is ready to continue, any thread is snatched from the thread pool and used to resume the method.

The only difference ConfigureAwait makes in ASP.NET is whether that thread enters the request context when resuming the method.

I have more background information in my MSDN article on SynchronizationContext and my async intro blog post.

Nevermind, the answer is raw triple-quoted strings:

r"""what"ever"""

Try Notepad++

On Windows I was able to use Notepad++ to do the conversion from ISO-8859-1 to UTF-8. Click "Encoding" and then "Convert to UTF-8".

"Dangerous" and "Security risk" are not the first things that spring to mind when people mention iframes … but they can be used in clickjacking attacks.

you can use

(x % n) - (x < 0 ? n : 0);

Try the following jQuery code which has worked for me.

if ($.browser.webkit) {
    $('input[name="password"]').attr('autocomplete', 'off');
    $('input[name="email"]').attr('autocomplete', 'off');
}

The command set-executionpolicy unrestricted will allow any script you create to run as the logged in user. Just be sure to set the executionpolicy setting back to signed using the set-executionpolicy signed command prior to logging out.

I know this was asked awhile back, but I found a comprehensive list of the virtual keyboard key codes right in MSDN, for use in C/C++. This also includes the mouse events. Note it is different than the javascript key codes (I noticed it around the VK_OEM section).

Here's the link:
http://msdn.microsoft.com/en-us/library/windows/desktop/dd375731(v=vs.85).aspx

According to the following post, you can't do this with log4j: Use MaxBackupIndex in DailyRollingFileAppender -log4j

As far as I know, this functionality was supposed to make it into log4j 2.0 but that effort got sidetracked. According to the logback website, logback is the intended successor to log4j so you might consider using that.

There's an API called SLF4J which provides a common API to logging. It will load up the actual logging implementation at runtime so depending on the configuration that you have provided, it might use java.util.log or log4j or logback or any other library capable of providing logging facilities. There'll be a bit of up-front work to go from using log4j directly to using SLF4J but they provide some tools to automate this process. Once you've converted your code to use SLF4J, switching logging backends should simply be a case of changing the config file.

You can pass multiple arguments like this.

List<object> arguments = new List<object>();
arguments.Add("first");      //argument 1
arguments.Add(new Object()); //argument 2
// ...
arguments.Add(10);           //argument n

backgroundWorker.RunWorkerAsync(arguments);

private void worker_DoWork(object sender, DoWorkEventArgs e) 
{
  List<object> genericlist = e.Argument as List<object>;
  //extract your multiple arguments from 
  //this list and cast them and use them. 
}

Maybe something like this:

connected = False

while not connected:
    try:
        try_connect()
        connected = True
    except ...:
        pass

I don't think you can save it without it appearing, but just for saving in multiple formats use the print command. See the answer posted here: Save an imagesc output in Matlab

You may pass an object to the data option in $.ajax. jQuery will send this as regular post data, just like a normal HTML form.

$.ajax({
    type: "POST",
    url: "TelephoneNumbers.aspx/DeleteNumber",
    data: dataO, // same as using {numberId: 1, companyId: 531}
    contentType: "application/json; charset=utf-8",
    dataType: "json",
    success: function(msg) {
        alert('In Ajax');
    }
});

Your code is

urlpatterns = [
    url(r'^$', 'myapp.views.home'),
    url(r'^contact/$', 'myapp.views.contact'),
    url(r'^login/$', 'django.contrib.auth.views.login'),
]

change it to following as you're importing include() function :

urlpatterns = [
    url(r'^$', views.home),
    url(r'^contact/$', views.contact),
    url(r'^login/$', views.login),
]

UPDATE R 
SET R.status = '0' 
FROM dbo.ProductReviews AS R
INNER JOIN dbo.products AS P 
       ON R.pid = P.id 
WHERE R.id = '17190' 
  AND P.shopkeeper = '89137';

Try using jQuery

<script type="text/javascript">
$("form").submit(function() {
$("form").attr('target', '_blank');
return true;
});
</script>

Here is a full answer - http://ftutorials.com/open-html-form-in-new-tab/

Java 11+:

URI uri = URI.create("http://www.google.com");
HttpRequest request = HttpRequest.newBuilder(uri).build();
String content = HttpClient.newHttpClient().send(request, BodyHandlers.ofString()).body();

You may try this example:

<form>_x000D_
  <h1>Hello! I'm duke! What's you name?</h1>_x000D_
  <input type="text" name="user">_x000D_
  <br>_x000D_
  <br>_x000D_
  <input type="submit" value="submit">&nbsp;&nbsp;&nbsp;&nbsp;_x000D_
  <input type="reset">_x000D_
</form>_x000D_
<h1>Hello ${param.user}</h1> _x000D_
<!-- its Expression Language -->

Make sure you are sending the proper parameters too. This happened to me after switching to UI-Router.

To fix it, I changed $routeParams to use $stateParams in my controller. The main issue was that $stateParams was no longer sending a proper parameter to the resource.

To understand this peculiar behavior of hibernate, it is important to understand a few hibernate concepts -

Hibernate Object States

Transient - An object is in transient status if it has been instantiated and is still not associated with a Hibernate session.

Persistent - A persistent instance has a representation in the database and an identifier value. It might just have been saved or loaded, however, it is by definition in the scope of a Session.

Detached - A detached instance is an object that has been persistent, but its Session has been closed.

http://docs.jboss.org/hibernate/orm/3.3/reference/en/html/objectstate.html#objectstate-overview

Transaction Write-Behind

The next thing to understand is 'Transaction Write behind'. When objects attached to a hibernate session are modified they are not immediately propagated to the database. Hibernate does this for at least two different reasons.

• To perform batch inserts and updates.
• To propagate only the last change. If an object is updated more than once, it still fires only one update statement.

http://learningviacode.blogspot.com/2012/02/write-behind-technique-in-hibernate.html

First Level Cache

Hibernate has something called 'First Level Cache'. Whenever you pass an object to save(), update() or saveOrUpdate(), and whenever you retrieve an object using load(), get(), list(), iterate() or scroll(), that object is added to the internal cache of the Session. This is where it tracks changes to various objects.

Hibernate Intercepters and Object Lifecycle Listeners -

The Interceptor interface and listener callbacks from the session to the application, allow the application to inspect and/or manipulate properties of a persistent object before it is saved, updated, deleted or loaded. http://docs.jboss.org/hibernate/orm/4.0/hem/en-US/html/listeners.html#d0e3069

This section Updated

Cascading

Hibernate allows applications to define cascade relationships between associations. For example, 'cascade-delete' from parent to child association will result in deletion of all children when a parent is deleted.

So, why are these important.

To be able to do transaction write-behind, to be able to track multiple changes to objects (object graphs) and to be able to execute lifecycle callbacks hibernate needs to know whether the object is transient/detached and it needs to have the object in it's first level cache before it makes any changes to the underlying object and associated relationships.

That's why hibernate (sometimes) issues a 'SELECT' statement to load the object (if it's not already loaded) in to it's first level cache before it makes changes to it.

Why does hibernate issue the 'SELECT' statement only sometimes?

Hibernate issues a 'SELECT' statement to determine what state the object is in. If the select statement returns an object, the object is in detached state and if it does not return an object, the object is in transient state.

Coming to your scenario -

Delete - The 'Delete' issued a SELECT statement because hibernate needs to know if the object exists in the database or not. If the object exists in the database, hibernate considers it as detached and then re-attches it to the session and processes delete lifecycle.

Update - Since you are explicitly calling 'Update' instead of 'SaveOrUpdate', hibernate blindly assumes that the object is in detached state, re-attaches the given object to the session first level cache and processes the update lifecycle. If it turns out that the object does not exist in the database contrary to hibernate's assumption, an exception is thrown when session flushes.

SaveOrUpdate - If you call 'SaveOrUpdate', hibernate has to determine the state of the object, so it uses a SELECT statement to determine if the object is in Transient/Detached state. If the object is in transient state, it processes the 'insert' lifecycle and if the object is in detached state, it processes the 'Update' lifecycle.