In Swift you can do the following code

import UIKit
extension UINavigationController: UIGestureRecognizerDelegate {

    open override func viewDidLoad() {
        super.viewDidLoad()
        interactivePopGestureRecognizer?.delegate = self
    }

    public func gestureRecognizerShouldBegin(_ gestureRecognizer: UIGestureRecognizer) -> Bool {
        return viewControllers.count > 1
    }
}

Above code helps in swift left to go back to previous controller like Facebook, Twitter.

I am listing out the solutions which worked for me so far.

override func viewDidLoad() {
super.viewDidLoad()   



self.navigationController?.navigationBar.topItem?.title = "" // 1

 let barAppearace = UIBarButtonItem.appearance()
barAppearace.setBackButtonTitlePositionAdjustment(UIOffsetMake(0, -60), forBarMetrics:UIBarMetrics.Default)  // 2

UIBarButtonItem.appearance().setTitleTextAttributes([NSForegroundColorAttributeName:UIColor.clearColor()], forState: UIControlState.Normal) //3

UIBarButtonItem.appearance().setTitleTextAttributes([NSForegroundColorAttributeName:UIColor.clearColor()], forState: UIControlState.Highlighted) //4   



}

self.navigationItem.rightBarButtonItem=[[[UIBarButtonItem alloc]initWithTitle:@"Save" style:UIBarButtonItemStylePlain target:self action:@selector(saveAction:)]autorelease];

-(void)saveAction:(UIBarButtonItem *)sender{

//perform your action

}

You Can use this:

Objective-C

UIBarButtonItem *rightSideOptionButton = [[UIBarButtonItem alloc] initWithTitle:@"Right" style:UIBarButtonItemStylePlain target:self action:@selector(rightSideOptionButtonClicked:)];          
self.navigationItem.rightBarButtonItem = rightSideOptionButton;

Swift

let rightSideOptionButton = UIBarButtonItem()
rightSideOptionButton.title = "Right"
self.navigationItem.rightBarButtonItem = rightSideOptionButton

Swift

override func viewWillDisappear(animated: Bool) {
    let viewControllers = self.navigationController?.viewControllers!
    if indexOfArray(viewControllers!, searchObject: self) == nil {
        // do something
    }
    super.viewWillDisappear(animated)
}

func indexOfArray(array:[AnyObject], searchObject: AnyObject)-> Int? {
    for (index, value) in enumerate(array) {
        if value as UIViewController == searchObject as UIViewController {
            return index
        }
    }
    return nil
}

First you should change the password using terminal. (username is postgres)

postgres=# \password postgres

Then you will be prompted to enter the password and confirm it.

Now you will be able to connect using pgadmin with the new password.

From the official documentation at http://api.jquery.com/jQuery.browser/:

This property was removed in jQuery 1.9 and is available only through the jQuery.migrate plugin.

You can use for example jquery-migrate-1.4.1.js to keep your existing code or plugins that use $.browser still working while you find a way to totally get rid of $.browser from your code in the future.

There are many ways to set custom font family on field and I am using like that below.

To add fonts as resources, perform the following steps in the Android Studio:

1) Right-click the res folder and go to New > Android resource directory. The New Resource Directory window appears.

2) In the Resource type list, select font, and then click OK.

Note: The name of the resource directory must be font.

3) Add your font files in the font folder.

Add font in desired view in your xml file:

Note: But you required the following things for that:

1. Android Studio above to 3.0 canary.

2. Your Activity extends AppCompatActivity.

3. Update your Gradle file like that:

    compileSdkVersion 26
    buildToolsVersion "26.0.1"
    defaultConfig {        
        minSdkVersion 19
        targetSdkVersion 26
        versionCode 1
        versionName "1.0"
        testInstrumentationRunner "android.support.test.runner.AndroidJUnitRunner"
    }

buildtoolsVersion above to 26 and minimum targetSdkVersion required 26

4. Add dependencies in build.gradle file:

classpath 'com.android.tools.build:gradle:3.0.0-beta4'

5. gradle-wrapper.properties:

distributionUrl=https\://services.gradle.org/distributions/gradle-4.1-all.zip

Use ANSI syntax and it will be a lot more clear how you are joining the tables:

SELECT s.name as Student, c.name as Course 
FROM student s
    INNER JOIN bridge b ON s.id = b.sid
    INNER JOIN course c ON b.cid  = c.id 
ORDER BY s.name 

As has been said previously, assertions should be used when your code SHOULD NOT ever reach a point, meaning there is a bug there. Probably the most useful reason I can see to use an assertion is an invariant/pre/postcondition. These are something that must be true at the start or end of each iteration of a loop or a function.

For example, a recursive function (2 seperate functions so 1 handles bad input and the other handles bad code, cause it's hard to distinguish with recursion). This would make it obvious if I forgot to write the if statement, what had gone wrong.

def SumToN(n):
    if n <= 0:
        raise ValueError, "N must be greater than or equal to 0"
    else:
        return RecursiveSum(n)

def RecursiveSum(n):
    #precondition: n >= 0
    assert(n >= 0)
    if n == 0:
        return 0
    return RecursiveSum(n - 1) + n
    #postcondition: returned sum of 1 to n

These loop invariants often can be represented with an assertion.

In xcode5 from Preferences, Accounts, (select your account), View Details, press refresh button. then select Provision Profile in build settings.

Select first the text you want to format and then press Ctrl+I.

Use Cmd+A first if you wish to format all text in the selected file.

Note: this procedure only re-indents the lines, it does not do any advanced formatting.

In XCode 12 beta:

The new key binding to re-indent is control+I.

For problems where it seems to be an error on a line you think is correct, you can often remove/comment the line where the error appears to be and, if the error moves to the next line, there are two possibilities.

Either both lines have a problem or the previous line has a problem which is being carried forward. The most likely case is the second option (even more so if you remove another line and it moves again).

For example, the following Python program twisty_passages.py:

xyzzy = (1 +
plugh = 7

generates the error:

  File "twisty_passages.py", line 2
    plugh = 7
          ^
SyntaxError: invalid syntax

despite the problem clearly being on line 1.

In your particular case, that is the problem. The parentheses in the line before your error line is unmatched, as per the following snippet:

# open parentheses: 1  2             3
#                   v  v             v
fi2=0.460*scipy.sqrt(1-(Tr-0.566)**2/(0.434**2)+0.494
#                               ^             ^
# close parentheses:            1             2

Depending on what you're trying to achieve, the solution may be as simple as just adding another closing parenthesis at the end, to close off the sqrt function.

I can't say for certain since I don't recognise the expression off the top of my head. Hardly surprising if (assuming PSAT is the enzyme, and the use of the typeMolecule identifier) it's to do with molecular biology - I seem to recall failing Biology consistently in my youth :-)

Change the file name if your file name is like pandas.py or pd.py, it will shadow the real name otherwise.

Check all 'C' characters. There are may be some cyrillic 'C's in english-looking word.
Reason for this is that in both english and russian keyboards 'C' occupies same physical button.

In VSCode, Go to File => Preferences => Settings (or Control+comma) and it will open the User Settings file. Search "javascript.implicitProjectConfig.experimentalDecorators": true and then check the checkbox for experimentalDecorators to the file and it should fix it. It did for me.

std::map takes up to four template type arguments, the third one being a comparator. E.g.:

struct cmpByStringLength {
    bool operator()(const std::string& a, const std::string& b) const {
        return a.length() < b.length();
    }
};

// ...
std::map<std::string, std::string, cmpByStringLength> myMap;

Alternatively you could also pass a comparator to maps constructor.

Note however that when comparing by length you can only have one string of each length in the map as a key.

Local package is a annoying problem in go.

For some projects in our company we decide not use sub packages at all.

• $ glide install
• $ go get
• $ go install

All work.

For some projects we use sub packages, and import local packages with full path:

import "xxxx.gitlab.xx/xxgroup/xxproject/xxsubpackage

But if we fork this project, then the subpackages still refer the original one.

String s1 = "Welcome"; // Does not create a new instance  
String s2 = new String("Welcome"); // Creates two objects and one reference variable  

use this to clear the previous keyboard buffer before scanning the string it will solve your problem scanner.nextLine();//this is to clear the keyboard buffer

The best and most sure solution is using SCOPE_IDENTITY().

Just you have to get the scope identity after every insert and save it in a variable because you can call two insert in the same scope.

ident_current and @@identity may be they work but they are not safe scope. You can have issues in a big application

  declare @duplicataId int
  select @duplicataId =   (SELECT SCOPE_IDENTITY())

More detail is here Microsoft docs

use MM(months) instead of mm(minutes) :

DateTime.Now.ToString("dd/MM/yyyy");

check here for more format options.

x(end+1) = newElem is a bit more robust.

x = [x newElem] will only work if x is a row-vector, if it is a column vector x = [x; newElem] should be used. x(end+1) = newElem, however, works for both row- and column-vectors.

In general though, growing vectors should be avoided. If you do this a lot, it might bring your code down to a crawl. Think about it: growing an array involves allocating new space, copying everything over, adding the new element, and cleaning up the old mess...Quite a waste of time if you knew the correct size beforehand :)

Since your problem is to downscale your image, there is no point in talking about interpolation -which is about creating pixel-. The issue here is downsampling.

To downsample an image, we need to turn each square of p * p pixels in the original image into a single pixel in the destination image.

For performances reasons Browsers do a very simple downsampling : to build the smaller image, they will just pick ONE pixel in the source and use its value for the destination. which 'forgets' some details and adds noise.

Yet there's an exception to that : since the 2X image downsampling is very simple to compute (average 4 pixels to make one) and is used for retina/HiDPI pixels, this case is handled properly -the Browser does make use of 4 pixels to make one-.

BUT... if you use several time a 2X downsampling, you'll face the issue that the successive rounding errors will add too much noise.
What's worse, you won't always resize by a power of two, and resizing to the nearest power + a last resizing is very noisy.

What you seek is a pixel-perfect downsampling, that is : a re-sampling of the image that will take all input pixels into account -whatever the scale-.
To do that we must compute, for each input pixel, its contribution to one, two, or four destination pixels depending wether the scaled projection of the input pixels is right inside a destination pixels, overlaps an X border, an Y border, or both.
( A scheme would be nice here, but i don't have one. )

Here's an example of canvas scale vs my pixel perfect scale on a 1/3 scale of a zombat.

Notice that the picture might get scaled in your Browser, and is .jpegized by S.O..
Yet we see that there's much less noise especially in the grass behind the wombat, and the branches on its right. The noise in the fur makes it more contrasted, but it looks like he's got white hairs -unlike source picture-.
Right image is less catchy but definitively nicer.

Here's the code to do the pixel perfect downscaling :

fiddle result : http://jsfiddle.net/gamealchemist/r6aVp/embedded/result/
fiddle itself : http://jsfiddle.net/gamealchemist/r6aVp/

// scales the image by (float) scale < 1
// returns a canvas containing the scaled image.
function downScaleImage(img, scale) {
    var imgCV = document.createElement('canvas');
    imgCV.width = img.width;
    imgCV.height = img.height;
    var imgCtx = imgCV.getContext('2d');
    imgCtx.drawImage(img, 0, 0);
    return downScaleCanvas(imgCV, scale);
}

// scales the canvas by (float) scale < 1
// returns a new canvas containing the scaled image.
function downScaleCanvas(cv, scale) {
    if (!(scale < 1) || !(scale > 0)) throw ('scale must be a positive number <1 ');
    var sqScale = scale * scale; // square scale = area of source pixel within target
    var sw = cv.width; // source image width
    var sh = cv.height; // source image height
    var tw = Math.floor(sw * scale); // target image width
    var th = Math.floor(sh * scale); // target image height
    var sx = 0, sy = 0, sIndex = 0; // source x,y, index within source array
    var tx = 0, ty = 0, yIndex = 0, tIndex = 0; // target x,y, x,y index within target array
    var tX = 0, tY = 0; // rounded tx, ty
    var w = 0, nw = 0, wx = 0, nwx = 0, wy = 0, nwy = 0; // weight / next weight x / y
    // weight is weight of current source point within target.
    // next weight is weight of current source point within next target's point.
    var crossX = false; // does scaled px cross its current px right border ?
    var crossY = false; // does scaled px cross its current px bottom border ?
    var sBuffer = cv.getContext('2d').
    getImageData(0, 0, sw, sh).data; // source buffer 8 bit rgba
    var tBuffer = new Float32Array(3 * tw * th); // target buffer Float32 rgb
    var sR = 0, sG = 0,  sB = 0; // source's current point r,g,b
    /* untested !
    var sA = 0;  //source alpha  */    

    for (sy = 0; sy < sh; sy++) {
        ty = sy * scale; // y src position within target
        tY = 0 | ty;     // rounded : target pixel's y
        yIndex = 3 * tY * tw;  // line index within target array
        crossY = (tY != (0 | ty + scale)); 
        if (crossY) { // if pixel is crossing botton target pixel
            wy = (tY + 1 - ty); // weight of point within target pixel
            nwy = (ty + scale - tY - 1); // ... within y+1 target pixel
        }
        for (sx = 0; sx < sw; sx++, sIndex += 4) {
            tx = sx * scale; // x src position within target
            tX = 0 |  tx;    // rounded : target pixel's x
            tIndex = yIndex + tX * 3; // target pixel index within target array
            crossX = (tX != (0 | tx + scale));
            if (crossX) { // if pixel is crossing target pixel's right
                wx = (tX + 1 - tx); // weight of point within target pixel
                nwx = (tx + scale - tX - 1); // ... within x+1 target pixel
            }
            sR = sBuffer[sIndex    ];   // retrieving r,g,b for curr src px.
            sG = sBuffer[sIndex + 1];
            sB = sBuffer[sIndex + 2];

            /* !! untested : handling alpha !!
               sA = sBuffer[sIndex + 3];
               if (!sA) continue;
               if (sA != 0xFF) {
                   sR = (sR * sA) >> 8;  // or use /256 instead ??
                   sG = (sG * sA) >> 8;
                   sB = (sB * sA) >> 8;
               }
            */
            if (!crossX && !crossY) { // pixel does not cross
                // just add components weighted by squared scale.
                tBuffer[tIndex    ] += sR * sqScale;
                tBuffer[tIndex + 1] += sG * sqScale;
                tBuffer[tIndex + 2] += sB * sqScale;
            } else if (crossX && !crossY) { // cross on X only
                w = wx * scale;
                // add weighted component for current px
                tBuffer[tIndex    ] += sR * w;
                tBuffer[tIndex + 1] += sG * w;
                tBuffer[tIndex + 2] += sB * w;
                // add weighted component for next (tX+1) px                
                nw = nwx * scale
                tBuffer[tIndex + 3] += sR * nw;
                tBuffer[tIndex + 4] += sG * nw;
                tBuffer[tIndex + 5] += sB * nw;
            } else if (crossY && !crossX) { // cross on Y only
                w = wy * scale;
                // add weighted component for current px
                tBuffer[tIndex    ] += sR * w;
                tBuffer[tIndex + 1] += sG * w;
                tBuffer[tIndex + 2] += sB * w;
                // add weighted component for next (tY+1) px                
                nw = nwy * scale
                tBuffer[tIndex + 3 * tw    ] += sR * nw;
                tBuffer[tIndex + 3 * tw + 1] += sG * nw;
                tBuffer[tIndex + 3 * tw + 2] += sB * nw;
            } else { // crosses both x and y : four target points involved
                // add weighted component for current px
                w = wx * wy;
                tBuffer[tIndex    ] += sR * w;
                tBuffer[tIndex + 1] += sG * w;
                tBuffer[tIndex + 2] += sB * w;
                // for tX + 1; tY px
                nw = nwx * wy;
                tBuffer[tIndex + 3] += sR * nw;
                tBuffer[tIndex + 4] += sG * nw;
                tBuffer[tIndex + 5] += sB * nw;
                // for tX ; tY + 1 px
                nw = wx * nwy;
                tBuffer[tIndex + 3 * tw    ] += sR * nw;
                tBuffer[tIndex + 3 * tw + 1] += sG * nw;
                tBuffer[tIndex + 3 * tw + 2] += sB * nw;
                // for tX + 1 ; tY +1 px
                nw = nwx * nwy;
                tBuffer[tIndex + 3 * tw + 3] += sR * nw;
                tBuffer[tIndex + 3 * tw + 4] += sG * nw;
                tBuffer[tIndex + 3 * tw + 5] += sB * nw;
            }
        } // end for sx 
    } // end for sy

    // create result canvas
    var resCV = document.createElement('canvas');
    resCV.width = tw;
    resCV.height = th;
    var resCtx = resCV.getContext('2d');
    var imgRes = resCtx.getImageData(0, 0, tw, th);
    var tByteBuffer = imgRes.data;
    // convert float32 array into a UInt8Clamped Array
    var pxIndex = 0; //  
    for (sIndex = 0, tIndex = 0; pxIndex < tw * th; sIndex += 3, tIndex += 4, pxIndex++) {
        tByteBuffer[tIndex] = Math.ceil(tBuffer[sIndex]);
        tByteBuffer[tIndex + 1] = Math.ceil(tBuffer[sIndex + 1]);
        tByteBuffer[tIndex + 2] = Math.ceil(tBuffer[sIndex + 2]);
        tByteBuffer[tIndex + 3] = 255;
    }
    // writing result to canvas.
    resCtx.putImageData(imgRes, 0, 0);
    return resCV;
}

It is quite memory greedy, since a float buffer is required to store the intermediate values of the destination image (-> if we count the result canvas, we use 6 times the source image's memory in this algorithm).
It is also quite expensive, since each source pixel is used whatever the destination size, and we have to pay for the getImageData / putImageDate, quite slow also.
But there's no way to be faster than process each source value in this case, and situation is not that bad : For my 740 * 556 image of a wombat, processing takes between 30 and 40 ms.

You can also use synchronized keyword for addFinisher method like this

    //Implement the one method in the RaceListener interface
    public synchronized void addFinisher(RaceCar finisher) {
        finishingOrder.add(finisher);
    }

So you can use ArrayList add method thread-safe with this way.

AJAX requests may not complete in the order they were started. Instead of aborting, you can choose to ignore all AJAX responses except for the most recent one:

• Create a counter
• Increment the counter when you initiate AJAX request
• Use the current value of counter to "stamp" the request
• In the success callback compare the stamp with the counter to check if it was the most recent request

Rough outline of code:

var xhrCount = 0;
function sendXHR() {
    // sequence number for the current invocation of function
    var seqNumber = ++xhrCount;
    $.post("/echo/json/", { delay: Math.floor(Math.random() * 5) }, function() {
        // this works because of the way closures work
        if (seqNumber === xhrCount) {
            console.log("Process the response");
        } else {
            console.log("Ignore the response");
        }
    });
}
sendXHR();
sendXHR();
sendXHR();
// AJAX requests complete in any order but only the last 
// one will trigger "Process the response" message

Demo on jsFiddle

It's worth noting that multiple field indexes can drastically improve your query performance. So in the above example we assume ProductID is the only field to lookup but were the query to say ProductID = 1 AND Category = 7 then a multiple column index helps. This is achieved with the following:

ALTER TABLE `table` ADD INDEX `index_name` (`col1`,`col2`)

Additionally the index should match the order of the query fields. In my extended example the index should be (ProductID,Category) not the other way around.

I don't think so. Just use two IFs and GOTO the same label:

IF cond1 GOTO foundit
IF cond2 GOTO foundit

ECHO Didn't found it
GOTO end

:foundit
ECHO Found it!

:end

First: You don't need to worry about using the slow performance code from the Raghav Sood's answer.

Second: You don't need to write an extension function provided by w3bshark's answer when using Kotlin.

Finnaly: All you need to do is to use the Kotlin android-ktx library from Google (refer here to find more information and how to include it on your project):

// Suppose id = 1111 and name = neil (just what you want). 
val s = SpannableStringBuilder()
          .bold { append(id) } 
          .append(name)
txtResult.setText(s) 

Produces: 1111 neil

UPDATE:

Because I think it can help someone else as well as to demonstrate how far you can go here are more use cases.

• When you need to display a text with some parts in blue and italic:

  val myCustomizedString = SpannableStringBuilder()
      .color(blueColor, { append("A blue text ") })
      .append("showing that ")
      .italic{ append("it is painless") }
  

• When you need to display a text in both bold and italic:

      bold { italic { append("Bold and italic") } }
  

In short, bold, append, color and italic are extension functions to SpannableStringBuilder. You can see another extension functions in the official documentation, from where you can think for other possibilities.

Do you perhaps have one too many here?

 describe "when name is too long" do
     before { @user.name = "a" * 51 }
     it { should_not be_valid }
 end
 end

^{This answer is all about authorization and it is a complement of my previous answer about authentication}

^{Why another answer? I attempted to expand my previous answer by adding details on how to support JSR-250 annotations. However the original answer became the way too long and exceeded the maximum length of 30,000 characters. So I moved the whole authorization details to this answer, keeping the other answer focused on performing authentication and issuing tokens.}

Supporting role-based authorization with the @Secured annotation

Besides authentication flow shown in the other answer, role-based authorization can be supported in the REST endpoints.

Create an enumeration and define the roles according to your needs:

public enum Role {
    ROLE_1,
    ROLE_2,
    ROLE_3
}

Change the @Secured name binding annotation created before to support roles:

@NameBinding
@Retention(RUNTIME)
@Target({TYPE, METHOD})
public @interface Secured {
    Role[] value() default {};
}

And then annotate the resource classes and methods with @Secured to perform the authorization. The method annotations will override the class annotations:

@Path("/example")
@Secured({Role.ROLE_1})
public class ExampleResource {

    @GET
    @Path("{id}")
    @Produces(MediaType.APPLICATION_JSON)
    public Response myMethod(@PathParam("id") Long id) {
        // This method is not annotated with @Secured
        // But it's declared within a class annotated with @Secured({Role.ROLE_1})
        // So it only can be executed by the users who have the ROLE_1 role
        ...
    }

    @DELETE
    @Path("{id}")    
    @Produces(MediaType.APPLICATION_JSON)
    @Secured({Role.ROLE_1, Role.ROLE_2})
    public Response myOtherMethod(@PathParam("id") Long id) {
        // This method is annotated with @Secured({Role.ROLE_1, Role.ROLE_2})
        // The method annotation overrides the class annotation
        // So it only can be executed by the users who have the ROLE_1 or ROLE_2 roles
        ...
    }
}

Create a filter with the AUTHORIZATION priority, which is executed after the AUTHENTICATION priority filter defined previously.

The ResourceInfo can be used to get the resource Method and resource Class that will handle the request and then extract the @Secured annotations from them:

@Secured
@Provider
@Priority(Priorities.AUTHORIZATION)
public class AuthorizationFilter implements ContainerRequestFilter {

    @Context
    private ResourceInfo resourceInfo;

    @Override
    public void filter(ContainerRequestContext requestContext) throws IOException {

        // Get the resource class which matches with the requested URL
        // Extract the roles declared by it
        Class<?> resourceClass = resourceInfo.getResourceClass();
        List<Role> classRoles = extractRoles(resourceClass);

        // Get the resource method which matches with the requested URL
        // Extract the roles declared by it
        Method resourceMethod = resourceInfo.getResourceMethod();
        List<Role> methodRoles = extractRoles(resourceMethod);

        try {

            // Check if the user is allowed to execute the method
            // The method annotations override the class annotations
            if (methodRoles.isEmpty()) {
                checkPermissions(classRoles);
            } else {
                checkPermissions(methodRoles);
            }

        } catch (Exception e) {
            requestContext.abortWith(
                Response.status(Response.Status.FORBIDDEN).build());
        }
    }

    // Extract the roles from the annotated element
    private List<Role> extractRoles(AnnotatedElement annotatedElement) {
        if (annotatedElement == null) {
            return new ArrayList<Role>();
        } else {
            Secured secured = annotatedElement.getAnnotation(Secured.class);
            if (secured == null) {
                return new ArrayList<Role>();
            } else {
                Role[] allowedRoles = secured.value();
                return Arrays.asList(allowedRoles);
            }
        }
    }

    private void checkPermissions(List<Role> allowedRoles) throws Exception {
        // Check if the user contains one of the allowed roles
        // Throw an Exception if the user has not permission to execute the method
    }
}

If the user has no permission to execute the operation, the request is aborted with a 403 (Forbidden).

To know the user who is performing the request, see my previous answer. You can get it from the SecurityContext (which should be already set in the ContainerRequestContext) or inject it using CDI, depending on the approach you go for.

If a @Secured annotation has no roles declared, you can assume all authenticated users can access that endpoint, disregarding the roles the users have.

Supporting role-based authorization with JSR-250 annotations

Alternatively to defining the roles in the @Secured annotation as shown above, you could consider JSR-250 annotations such as @RolesAllowed, @PermitAll and @DenyAll.

JAX-RS doesn't support such annotations out-of-the-box, but it could be achieved with a filter. Here are a few considerations to keep in mind if you want to support all of them:

• @DenyAll on the method takes precedence over @RolesAllowed and @PermitAll on the class.
• @RolesAllowed on the method takes precedence over @PermitAll on the class.
• @PermitAll on the method takes precedence over @RolesAllowed on the class.
• @DenyAll can't be attached to classes.
• @RolesAllowed on the class takes precedence over @PermitAll on the class.

So an authorization filter that checks JSR-250 annotations could be like:

@Provider
@Priority(Priorities.AUTHORIZATION)
public class AuthorizationFilter implements ContainerRequestFilter {

    @Context
    private ResourceInfo resourceInfo;

    @Override
    public void filter(ContainerRequestContext requestContext) throws IOException {

        Method method = resourceInfo.getResourceMethod();

        // @DenyAll on the method takes precedence over @RolesAllowed and @PermitAll
        if (method.isAnnotationPresent(DenyAll.class)) {
            refuseRequest();
        }

        // @RolesAllowed on the method takes precedence over @PermitAll
        RolesAllowed rolesAllowed = method.getAnnotation(RolesAllowed.class);
        if (rolesAllowed != null) {
            performAuthorization(rolesAllowed.value(), requestContext);
            return;
        }

        // @PermitAll on the method takes precedence over @RolesAllowed on the class
        if (method.isAnnotationPresent(PermitAll.class)) {
            // Do nothing
            return;
        }

        // @DenyAll can't be attached to classes

        // @RolesAllowed on the class takes precedence over @PermitAll on the class
        rolesAllowed = 
            resourceInfo.getResourceClass().getAnnotation(RolesAllowed.class);
        if (rolesAllowed != null) {
            performAuthorization(rolesAllowed.value(), requestContext);
        }

        // @PermitAll on the class
        if (resourceInfo.getResourceClass().isAnnotationPresent(PermitAll.class)) {
            // Do nothing
            return;
        }

        // Authentication is required for non-annotated methods
        if (!isAuthenticated(requestContext)) {
            refuseRequest();
        }
    }

    /**
     * Perform authorization based on roles.
     *
     * @param rolesAllowed
     * @param requestContext
     */
    private void performAuthorization(String[] rolesAllowed, 
                                      ContainerRequestContext requestContext) {

        if (rolesAllowed.length > 0 && !isAuthenticated(requestContext)) {
            refuseRequest();
        }

        for (final String role : rolesAllowed) {
            if (requestContext.getSecurityContext().isUserInRole(role)) {
                return;
            }
        }

        refuseRequest();
    }

    /**
     * Check if the user is authenticated.
     *
     * @param requestContext
     * @return
     */
    private boolean isAuthenticated(final ContainerRequestContext requestContext) {
        // Return true if the user is authenticated or false otherwise
        // An implementation could be like:
        // return requestContext.getSecurityContext().getUserPrincipal() != null;
    }

    /**
     * Refuse the request.
     */
    private void refuseRequest() {
        throw new AccessDeniedException(
            "You don't have permissions to perform this action.");
    }
}

^{Note: The above implementation is based on the Jersey RolesAllowedDynamicFeature. If you use Jersey, you don't need to write your own filter, just use the existing implementation.}

I always use QString::setNum().

int i = 10;
double d = 10.75;
QString str;
str.setNum(i);
str.setNum(d);

setNum() is overloaded in many ways. See QString class reference.

If you are using a version of jQuery that is less than version 1.8 you can use the $('.class').size() which takes zero parameters. See documentation for more information on .size() method.

However if you are using (or plan to upgrade) to 1.8 or greater you can use $('.class').length property. See documentation for more information on .length property.

The CPP Section of the GCC Manual indicates that header files may be located in the following directories:

GCC looks in several different places for headers. On a normal Unix system, if you do not instruct it otherwise, it will look for headers requested with #include in:

 /usr/local/include
 libdir/gcc/target/version/include
 /usr/target/include
 /usr/include

For C++ programs, it will also look in /usr/include/g++-v3, first.

Every object has a __dict__ variable containing all the variables and its values in it.

Try this

>>> hi_obj = hi()
>>> hi_obj.__dict__.keys()

formData = new FormData();
formData.append('_token', "{{csrf_token()}}");
formData.append('file', blobInfo.blob(), blobInfo.filename());
xhr.send(formData);

JavaScript Code

function ctrl($scope){
$scope.call={state:['second','first','nothing','Never', 'Gonna', 'Give', 'You', 'Up']}


$scope.whatClassIsIt= function(someValue){
     if(someValue=="first")
            return "ClassA"
     else if(someValue=="second")
         return "ClassB";
    else
         return "ClassC";
}
}

Yup, this is possible of course. Here are several examples.

-- one way to do this
DECLARE @Cnt int

SELECT @Cnt = COUNT(SomeColumn)
FROM TableName
GROUP BY SomeColumn

-- another way to do the same thing
DECLARE @StreetName nvarchar(100)
SET @StreetName = (SELECT Street_Name from Streets where Street_ID = 123)

-- Assign values to several variables at once
DECLARE @val1 nvarchar(20)
DECLARE @val2 int
DECLARE @val3 datetime
DECLARE @val4 uniqueidentifier
DECLARE @val5 double

SELECT @val1 = TextColumn,
@val2 = IntColumn,
@val3 = DateColumn,
@val4 = GuidColumn,
@val5 = DoubleColumn
FROM SomeTable

The input.files attribute is an HTML5 feature. That's why some browsers din't return anything. Simply add a fallback to the plain old input.value (string) if files doesn't exist.

reference: http://www.w3.org/TR/2012/WD-html5-20121025/common-input-element-apis.html#dom-input-files

(d means decimal, b means binary)

1. 12.25d is your float.
2. You write 12d in binary and remove it from your float. Only the remainder (.25d) will be left.
3. You write the dot.
4. While the remainder (0.25d) is not zero (and/or you want more digits), multiply it with 2 (-> 0.50d), remove and write the digit left of the dot (0), and continue with the new remainder (.50d).

This would be a pure JS version (adapted from cowboy's):

var obj = {a: 123, b: "4 5 6"};
var data = "text/json;charset=utf-8," + encodeURIComponent(JSON.stringify(obj));

var a = document.createElement('a');
a.href = 'data:' + data;
a.download = 'data.json';
a.innerHTML = 'download JSON';

var container = document.getElementById('container');
container.appendChild(a);

http://jsfiddle.net/sz76c083/1

The order of initialization doesn’t matter. All fields are initialized in the order of their definition in their class/struct. But if the order in initialization list is different gcc/g++ generate this warning. Only change the initialization order to avoid this warning. But you can't define field using in initialization before its construct. It will be a runtime error. So you change the order of definition. Be careful and keep attention!

As of IE11, you need to use addEventListener. attachEvent is deprecated and throws an error.

hostname -I | awk ' {print $1}'

Add Column, Add Row, Delete Column, Delete Row. Simplest way

    function addColumn(myTable) {
      var table = document.getElementById(myTable);
      var row = table.getElementsByTagName('tr');
      for(i=0;i<row.length;i++){
        row[i].innerHTML = row[i].innerHTML + '<td></td>';
      }
    }
    function deleterow(tblId)
    {
        
      var table = document.getElementById(tblId);
      var row = table.getElementsByTagName('tr');
            if(row.length!='1'){
                row[row.length - 1].outerHTML='';
            }
    }
    function deleteColumn(tblId)
    {
        var allRows = document.getElementById(tblId).rows;
        for (var i=0; i<allRows.length; i++) {
            if (allRows[i].cells.length > 1) {
                allRows[i].deleteCell(-1);
            }
        }
    }
    function myFunction(myTable) {
      var table = document.getElementById(myTable);
      var row = table.getElementsByTagName('tr');
      var row = row[row.length-1].outerHTML;
      table.innerHTML = table.innerHTML + row;
      var row = table.getElementsByTagName('tr');
      var row = row[row.length-1].getElementsByTagName('td');
      for(i=0;i<row.length;i++){
        row[i].innerHTML = '';
      }
    }

    table, td {
      border: 1px solid black;
      border-collapse:collapse;
    }
    td {
      cursor:text;
      padding:10px;
    }
    td:empty:after{
      content:"Type here...";
      color:#cccccc;
    }

   <!DOCTYPE html>
    <html>
    <head>
    </head>
    <body>
    <form>
    <p>
    <input type="button" value="+Column" onclick="addColumn('tblSample')">
    <input type="button" value="-Column" onclick="deleteColumn('tblSample')">
    <input type="button" value="+Row" onclick="myFunction('tblSample')">
    <input type="button" value="-Row" onclick="deleterow('tblSample')">
    </p>
    <table id="tblSample" contenteditable><tr><td></td></tr></table>
    </form>

    </body>
    </html>

Use this regular expression to match square brackets or single quotes:

/[\[\]']+/g

Replace with the empty string.

console.log("['abc','xyz']".replace(/[\[\]']+/g,''));

ok,most of them have shown you something good. Let'me give you this:

// ToString Change arg to string
func ToString(arg interface{}, timeFormat ...string) string {
    if len(timeFormat) > 1 {
        log.SetFlags(log.Llongfile | log.LstdFlags)
        log.Println(errors.New(fmt.Sprintf("timeFormat's length should be one")))
    }
    var tmp = reflect.Indirect(reflect.ValueOf(arg)).Interface()
    switch v := tmp.(type) {
    case int:
        return strconv.Itoa(v)
    case int8:
        return strconv.FormatInt(int64(v), 10)
    case int16:
        return strconv.FormatInt(int64(v), 10)
    case int32:
        return strconv.FormatInt(int64(v), 10)
    case int64:
        return strconv.FormatInt(v, 10)
    case string:
        return v
    case float32:
        return strconv.FormatFloat(float64(v), 'f', -1, 32)
    case float64:
        return strconv.FormatFloat(v, 'f', -1, 64)
    case time.Time:
        if len(timeFormat) == 1 {
            return v.Format(timeFormat[0])
        }
        return v.Format("2006-01-02 15:04:05")
    case jsoncrack.Time:
        if len(timeFormat) == 1 {
            return v.Time().Format(timeFormat[0])
        }
        return v.Time().Format("2006-01-02 15:04:05")
    case fmt.Stringer:
        return v.String()
    case reflect.Value:
        return ToString(v.Interface(), timeFormat...)
    default:
        return ""
    }
}

I think you should consider using IO.binread("/path/to/file") if you have a recent ruby interpreter (i.e. >= 1.9.2)

You could find IO class documentation here http://www.ruby-doc.org/core-2.1.2/IO.html

There may be two possibilities=>

1. Try to update your node js and npm.

2. Permission issue => a. Move your solution on c drive in your respective user account b. Need to run bash or cmd as administrator.

Hope this will resolve your issue

You need to alias the aggregate using the as keyword in order to call it from mysqli_fetch_assoc

$result=mysqli_query($conn,"SELECT count(*) as total from Students");
$data=mysqli_fetch_assoc($result);
echo $data['total'];

If you need a function that behaves as a nop, try

nop = lambda *a, **k: None
nop()

Sometimes I do stuff like this when I'm making dependencies optional:

try:
    import foo
    bar=foo.bar
    baz=foo.baz
except:
    bar=nop
    baz=nop

# Doesn't break when foo is missing:
bar()
baz()

from glob import glob

files = glob('*.gif')
files.extend(glob('*.png'))
files.extend(glob('*.jpg'))

print(files)

If you need to specify a path, loop over match patterns and keep the join inside the loop for simplicity:

from os.path import join
from glob import glob

files = []
for ext in ('*.gif', '*.png', '*.jpg'):
   files.extend(glob(join("path/to/dir", ext)))

print(files)

To answer the first part of your question, you must create an object of type Player before you can use it. When you say push_back(Player), it means "add the Player class to the vector", not "add an object of type Player to the vector" (which is what you meant).

You can create the object on the stack like this:

Player player;
vectorOfGamers.push_back(player);    // <-- name of variable, not type

Or you can even create a temporary object inline and push that (it gets copied when it's put in the vector):

vectorOfGamers.push_back(Player());    // <-- parentheses create a "temporary"

To answer the second part, you can create a vector of the base type, which will allow you to push back objects of any subtype; however, this won't work as expected:

vector<Gamer> gamers;
gamers.push_back(Dealer());    // Doesn't work properly!

since when the dealer object is put into the vector, it gets copied as a Gamer object -- this means only the Gamer part is copied effectively "slicing" the object. You can use pointers, however, since then only the pointer would get copied, and the object is never sliced:

vector<Gamer*> gamers;
gamers.push_back(new Dealer());    // <-- Allocate on heap with `new`, since we
                                   // want the object to persist while it's
                                   // pointed to

That header doesn't exist in standard C++. It was part of some pre-1990s compilers, but it is certainly not part of C++.

Use #include <iostream> instead. And all the library classes are in the std:: namespace, for ex­am­ple std::cout.

Also, throw away any book or notes that mention the thing you said.

You cannot add a column with a default value in Hive. You have the right syntax for adding the column ALTER TABLE test1 ADD COLUMNS (access_count1 int);, you just need to get rid of default sum(max_count). No changes to that files backing your table will happen as a result of adding the column. Hive handles the "missing" data by interpreting NULL as the value for every cell in that column.

So now your have the problem of needing to populate the column. Unfortunately in Hive you essentially need to rewrite the whole table, this time with the column populated. It may be easier to rerun your original query with the new column. Or you could add the column to the table you have now, then select all of its columns plus value for the new column.

You also have the option to always COALESCE the column to your desired default and leave it NULL for now. This option fails when you want NULL to have a meaning distinct from your desired default. It also requires you to depend on always remembering to COALESCE.

If you are very confident in your abilities to deal with the files backing Hive, you could also directly alter them to add your default. In general I would recommend against this because most of the time it will be slower and more dangerous. There might be some case where it makes sense though, so I've included this option for completeness.

Simply specify the path to the libraries:

echo "-Djava.library.path=/usr/lib/jni/" >> /etc/eclipse.ini

Here's a reasonable alternative if you don't have control over defining the exceptions. Use the name of the exception variable to categorize the exceptions when they are caught. Then check for the exception variable after the try/catch block.

$ABError = null;
try {
    // something
} catch (AError $ABError) {  // let the exception fall through
} catch (BError $ABError) {  // let the exception fall through
} catch (Exception $e) {
    handler2($e);
}
if ($ABError) {
    handler1($ABError);
}

This somewhat odd looking approach is probably only worth it if there is a lot of duplication between catch block implementations.

Wget 404 error also always happens if you want to download the pages from Wordpress-website by typing

wget -r http://somewebsite.com

If this website is built using Wordpress you'll get such an error:

ERROR 404: Not Found.

There's no way to mirror Wordpress-website because the website content is stored in the database and wget is not able to grab .php files. That's why you get Wget 404 error.

I know it's not this question's case, because Sam only wants to download a single picture, but it can be helpful for others.

Package organization or package structuring is usually a heated discussion. Below are some simple guidelines for package naming and structuring:

• Follow java package naming conventions
• Structure your packages according to their functional role as well as their business role
  • Break down your packages according to their functionality or modules. e.g. com.company.product.modulea
  • Further break down could be based on layers in your software. But don't go overboard if you have only few classes in the package, then it makes sense to have everything in the package. e.g. com.company.product.module.web or com.company.product.module.util etc.
  • Avoid going overboard with structuring, IMO avoid separate packaging for exceptions, factories, etc. unless there's a pressing need.
• If your project is small, keep it simple with few packages. e.g. com.company.product.model and com.company.product.util, etc.
• Take a look at some of the popular open source projects out there on Apache projects. See how they use structuring, for various sized projects.
• Also consider build and distribution when naming ( allowing you to distribute your api or SDK in a different package, see servlet api)

After a few experiments and trials you should be able to come up with a structuring that you are comfortable with. Don't be fixated on one convention, be open to changes.

If you installed from the DMG on a mac, it created a mysql client but did not put it in your user path.

Add this to your .bash_profile:

export PATH="/usr/local/mysql/bin:$PATH

This will let you run mysql from anywhere as you.

Add this script inside head tag:

<script type="text/javascript" src="//ajax.googleapis.com/ajax/libs/jquery/2.0.0/jquery.min.js"></script>

Use IList<IWebElement> instead of List<IWebElement>.

For instance:

IList<IWebElement> options = elem.FindElements(By.TagName("option"));
foreach (IWebElement option in options)
{
    Console.WriteLine(option.Text);
}

In your model create the raw SQL statement (example below is an example of a date interval I had to use but substitute your own. If you are doing a SELECT add ->fetchall() to the execute() call.

   $sql = "DELETE FROM tmp 
            WHERE lastedit + INTERVAL '5 minute' < NOW() ";

    $stmt = $this->getServiceLocator()
                 ->get('Doctrine\ORM\EntityManager')
                 ->getConnection()
                 ->prepare($sql);

    $stmt->execute();

../htmlfilename with .html User can do this This will solve your problem of redirection to anypage for local files.

To put it a different way "id()" is not what you care about. You want to know if the variable name can be modified without harming the source variable name.

>>> a = 'hello'                                                                                                                                                                                                                                                                                        
>>> b = a[:]                                                                                                                                                                                                                                                                                           
>>> c = a                                                                                                                                                                                                                                                                                              
>>> b += ' world'                                                                                                                                                                                                                                                                                      
>>> c += ', bye'                                                                                                                                                                                                                                                                                       
>>> a                                                                                                                                                                                                                                                                                                  
'hello'                                                                                                                                                                                                                                                                                                
>>> b                                                                                                                                                                                                                                                                                                  
'hello world'                                                                                                                                                                                                                                                                                          
>>> c                                                                                                                                                                                                                                                                                                  
'hello, bye'                                                                                                                                                                                                                                                                                           

If you're used to C, then these are like pointer variables except you can't de-reference them to modify what they point at, but id() will tell you where they currently point.

The problem for python programmers comes when you consider deeper structures like lists or dicts:

>>> o={'a': 10}                                                                                                                                                                                                                                                                                        
>>> x=o                                                                                                                                                                                                                                                                                                
>>> y=o.copy()                                                                                                                                                                                                                                                                                         
>>> x['a'] = 20                                                                                                                                                                                                                                                                                        
>>> y['a'] = 30                                                                                                                                                                                                                                                                                        
>>> o                                                                                                                                                                                                                                                                                                  
{'a': 20}                                                                                                                                                                                                                                                                                              
>>> x                                                                                                                                                                                                                                                                                                  
{'a': 20}                                                                                                                                                                                                                                                                                              
>>> y                                                                                                                                                                                                                                                                                                  
{'a': 30}                                                                                                                                                                                                                                                                                              

Here o and x refer to the same dict o['a'] and x['a'], and that dict is "mutable" in the sense that you can change the value for key 'a'. That's why "y" needs to be a copy and y['a'] can refer to something else.

You can indeed align the box to the bottom without using position:absolute if you know the height of the #container using the text alignment feature of inline-block elements.

Here you can see it in action.

This is the code:

#container {
    /* So the #container most have a fixed height */
    height: 300px;
    line-height: 300px;
    background:Red;
}

#container > * {
    /* Restore Line height to Normal */
    line-height: 1.2em;
}

#copyright {
    display:inline-block;
    vertical-align:bottom;
    width:100%; /* Let it be a block */
    background:green;
}

You could always git revert your commit which deleted the file. (This assumes that the deletion was the only change in the commit.)

> git log
commit 2994bda49cd97ce49099953fc3f76f7d3c35d1d3
Author: Dave <[email protected]>
Date:   Thu May 9 11:11:06 2019 -0700

    deleted readme.md

And if you've continued work, and realized later that you didn't want to commit that deletion commit, you could revert it using:

> git revert 2994bd

Now git log shows:

> git log
Author: Dave <[email protected]>
Date:   Thu May 9 11:17:41 2019 -0700

    Revert "deleted readme"

    This reverts commit 2994bda49cd97ce49099953fc3f76f7d3c35d1d3.

And readme.md has been restored into the repository.

I think this is the shortest regular expression that does it:

/\B(?=(\d{3})+\b)/g

"123456".replace(/\B(?=(\d{3})+\b)/g, ",")

I checked it on a few numbers and it worked.

well i got the solution. hope it may help you :)

select{_x000D_
      border-image: url(http://www.w3schools.com/cssref/border.png) 30 stretch;_x000D_
      width: 120px;_x000D_
      height: 36px;_x000D_
      color: #999;_x000D_
  }

<select>_x000D_
  <option value="1">Hi</option>_x000D_
  <option value="2">Bye</option>_x000D_
</select>

If you provide 6 hex digits, that means RGB (2 hex digits for each value of red, green and blue).

If you provide 8 hex digits, it's an ARGB (2 hex digits for each value of alpha, red, green and blue respectively).

So by removing the final 55 you're changing from A=B4, R=55, G=55, B=55 (a mostly transparent grey), to R=B4, G=55, B=55 (a fully-non-transparent dusky pinky).

See the "Color" documentation for the supported formats.

If you are using structured data, this has the added benefit of not invoking an extra shell process to run tr and/or cut or something. ...

(Of course, you will want to guard against bad inputs with conditionals and sane alternatives.)

...
while read line ; 
do 
    lineCols=( $line ) ;
    echo "${lineCols[0]}"
    echo "${lineCols[1]}"
done < $myFQFileToRead ; 
...

<form id="rates">
  <input type="radio" name="rate" value="Fixed Rate"> Fixed
  <input type="radio" name="rate" value="Variable Rate"> Variable
  <input type="radio" name="rate" value="Multi Rate" checked> Multi
</form>

then...

var rate_value = rates.rate.value;

As something of an aside, MAXDOP can apparently be used as a workaround to a potentially nasty bug:

Returned identity values not always correct

Here is an easier way that can work in some cases. The principle is to add a not visible TextVview in your xml layout and to get its typeFace in the java code.

The layout in the xml file:

 <TextView
        android:text="The classic bread is made of flour hot and salty. The classic bread is made of flour hot and salty. The classic bread is made of flour hot and salty."
        android:layout_width="0dp"
        android:layout_height="0dp"
        android:fontFamily="sans-serif-thin"
        android:id="@+id/textViewDescription"/>

And the java code:

myText.setTypeface(textViewSelectedDescription.getTypeface());

It has worked for me (within a TextSwitcher for example).

mysql_* extension has been deprecated in 2013 and removed completely from PHP in 2018. You have two alternatives PDO or MySQLi.

PDO

The simpler option is PDO which has a neat helper function fetchColumn():

$stmt = $pdo->prepare("SELECT id FROM Users WHERE username=?");
$stmt->execute([ $_GET["username"] ]);
$value = $stmt->fetchColumn();

Proper PDO tutorial

MySQLi

You can do the same with MySQLi, but it is more complicated:

$stmt = $mysqliConn->prepare('SELECT id FROM Users WHERE username=?');
$stmt->bind_param("s", $_GET["username"]);
$stmt->execute();
$data = $stmt->get_result()->fetch_assoc();
$value = $data ? $data['id'] : null;

fetch_assoc() could return NULL if there are no rows returned from the DB, which is why I check with ternary if there was any data returned.

Monte Carlo method The most intuitive way to do this would be to use a monte carlo method. Take a suitable range -X, +X. Larger values of X will result in a more accurate normal distribution, but takes longer to converge. a. Choose a random number z between -X to X. b. Keep with a probability of N(z, mean, variance) where N is the gaussian distribution. Drop otherwise and go back to step (a).

Assuming that you're only using the array for lookup, you can use a Set (introduced in ES6), which allows you to find an element in O(1), meaning that lookup is sublinear. With the traditional methods of .includes() and .indexOf(), you still may need to look at all 500 (ie: N) elements in your array if the item specified doesn't exist in the array (or is the last item). This can be inefficient, however, with the help of a Set, you don't need to look at all elements, and instead, instantly check if the element is within your set:

const blockedTile = new Set(["118", "67", "190", "43", "135", "520"]);

if(blockedTile.has("118")) {
  // 118 is in your Set
  console.log("Found 118");
}

If for some reason you need to convert your set back into an array, you can do so through the use of Array.from() or the spread syntax (...), however, this will iterate through the entire set's contents (which will be O(N)). Sets also don't keep duplicates, meaning that your array won't contain duplicate items.

Oxi's answer is just wrong.¹

What you want is:

var container = document.body,
element = document.getElementById('ElementID');
container.scrollTop = element.offsetTop;

Working example:

(function (){
  var i = 20, l = 20, html = '';
  while (i--){
    html += '<div id="DIV' +(l-i)+ '">DIV ' +(l-i)+ '</div>';
    html += '<a onclick="document.body.scrollTop=document.getElementById(\'DIV' +i+ '\').offsetTop">';
    html += '[ Scroll to #DIV' +i+ ' ]</a>';
    html += '<br /><br /><br /><br /><br /><br /><br /><br /><br /><br /><br /><br /><br /><br />';
  }
  document.write( html );
})();

¹ I haven't got enough reputation to comment on his answer

It removes whatever already-compiled files are in your project so that you can do a complete fresh rebuild.

Simply specify the directory in which the loadable extensions (modules) reside in the php.ini file from

; On windows:
extension_dir="C:\xampp\php\ext"

to

; On windows:
;extension_dir = "ext"

Then enable the extension if it was disabled by changing

;extension=mysqli

to

extension=mysqli

You can't. At the time of writing, the only HTML form element that's designed to be multi-line is <textarea>.

$msg="You Enter Wrong Username OR Password"; $responso=json_encode($msg);

echo "{\"status\" : \"400\", \"responce\" : \"603\", \"message\" : \"You Enter Wrong Username OR Password\", \"feed\":".str_replace("<p>","",$responso). "}";

After looking for an answer for the question for months, I finally find a really best solution: writing a simple script.

#!/usr/bin/expect

set timeout 20

set cmd [lrange $argv 1 end]
set password [lindex $argv 0]

eval spawn $cmd
expect "assword:"   # matches both 'Password' and 'password'
send "$password\r";
interact

Put it to /usr/bin/exp, then you can use:

• exp <password> ssh <anything>
• exp <password> scp <anysrc> <anydst>

Done!

You use new to perform dynamic allocation. It returns a pointer that points to the dynamically allocated object.

You have no reason to use new, since A is an automatic variable. You can simply initialise A using its constructor:

vector<vector<int> > A(dimension, vector<int>(dimension));

Usage:

select replace_foreign_key('user_rates_posts', 'post_id', 'ON DELETE CASCADE');

Function:

CREATE OR REPLACE FUNCTION 
    replace_foreign_key(f_table VARCHAR, f_column VARCHAR, new_options VARCHAR) 
RETURNS VARCHAR
AS $$
DECLARE constraint_name varchar;
DECLARE reftable varchar;
DECLARE refcolumn varchar;
BEGIN

SELECT tc.constraint_name, ccu.table_name AS foreign_table_name, ccu.column_name AS foreign_column_name 
FROM 
    information_schema.table_constraints AS tc 
    JOIN information_schema.key_column_usage AS kcu
      ON tc.constraint_name = kcu.constraint_name
    JOIN information_schema.constraint_column_usage AS ccu
      ON ccu.constraint_name = tc.constraint_name
WHERE constraint_type = 'FOREIGN KEY' 
   AND tc.table_name= f_table AND kcu.column_name= f_column
INTO constraint_name, reftable, refcolumn;

EXECUTE 'alter table ' || f_table || ' drop constraint ' || constraint_name || 
', ADD CONSTRAINT ' || constraint_name || ' FOREIGN KEY (' || f_column || ') ' ||
' REFERENCES ' || reftable || '(' || refcolumn || ') ' || new_options || ';';

RETURN 'Constraint replaced: ' || constraint_name || ' (' || f_table || '.' || f_column ||
 ' -> ' || reftable || '.' || refcolumn || '); New options: ' || new_options;

END;
$$ LANGUAGE plpgsql;

Be aware: this function won't copy attributes of initial foreign key. It only takes foreign table name / column name, drops current key and replaces with new one.

window.getSelection - vs - document.selection

This one works for me:

function getCaretCharOffset(element) {_x000D_
  var caretOffset = 0;_x000D_
_x000D_
  if (window.getSelection) {_x000D_
    var range = window.getSelection().getRangeAt(0);_x000D_
    var preCaretRange = range.cloneRange();_x000D_
    preCaretRange.selectNodeContents(element);_x000D_
    preCaretRange.setEnd(range.endContainer, range.endOffset);_x000D_
    caretOffset = preCaretRange.toString().length;_x000D_
  } _x000D_
_x000D_
  else if (document.selection && document.selection.type != "Control") {_x000D_
    var textRange = document.selection.createRange();_x000D_
    var preCaretTextRange = document.body.createTextRange();_x000D_
    preCaretTextRange.moveToElementText(element);_x000D_
    preCaretTextRange.setEndPoint("EndToEnd", textRange);_x000D_
    caretOffset = preCaretTextRange.text.length;_x000D_
  }_x000D_
_x000D_
  return caretOffset;_x000D_
}_x000D_
_x000D_
_x000D_
// Demo:_x000D_
var elm = document.querySelector('[contenteditable]');_x000D_
elm.addEventListener('click', printCaretPosition)_x000D_
elm.addEventListener('keydown', printCaretPosition)_x000D_
_x000D_
function printCaretPosition(){_x000D_
  console.log( getCaretCharOffset(elm), 'length:', this.textContent.trim().length )_x000D_
}

<div contenteditable>some text here <i>italic text here</i> some other text here <b>bold text here</b> end of text</div>

The calling line depends on event type, for key event use this:

getCaretCharOffsetInDiv(e.target) + ($(window.getSelection().getRangeAt(0).startContainer.parentNode).index());

for mouse event use this:

getCaretCharOffsetInDiv(e.target.parentElement) + ($(e.target).index())

on these two cases I take care for break lines by adding the target index

you can always use loadash functions ,like _.nil or _.undefined .They are pretty good to use.

Square brackets are meant for character class, and you're actually trying to match any one of: s, |, s (again), e, a, s (again), o and n.

Use parentheses instead for grouping:

(s|season)

or non-capturing group:

(?:s|season)

Note: Non-capture groups tell the engine that it doesn't need to store the match, while the other one (capturing group does). For small stuff, either works, for 'heavy duty' stuff, you might want to see first if you need the match or not. If you don't, better use the non-capture group to allocate more memory for calculation instead of storing something you will never need to use.

In the AndroidManifest.xml file, for each activity you want to lock add the last screenOrientation line:

android:label="@string/app_name"
android:name=".Login"
android:screenOrientation="portrait" >

Or android:screenOrientation="landscape".

Try this: currentLoad = ConvertToLongInteger(oXLSheet2.Cells(4, 6).Value) with this function:

Function ConvertToLongInteger(ByVal stValue As String) As Long
 On Error GoTo ConversionFailureHandler
 ConvertToLongInteger = CLng(stValue)  'TRY to convert to an Integer value
 Exit Function           'If we reach this point, then we succeeded so exit

ConversionFailureHandler:
 'IF we've reached this point, then we did not succeed in conversion
 'If the error is type-mismatch, clear the error and return numeric 0 from the function
 'Otherwise, disable the error handler, and re-run the code to allow the system to 
 'display the error
 If Err.Number = 13 Then 'error # 13 is Type mismatch
      Err.Clear
      ConvertToLongInteger = 0
      Exit Function
 Else
      On Error GoTo 0
      Resume
 End If
End Function

I chose Long (Integer) instead of simply Integer because the min/max size of an Integer in VBA is crummy (min: -32768, max:+32767). It's common to have an integer outside of that range in spreadsheet operations.

The above code can be modified to handle conversion from string to-Integers, to-Currency (using CCur() ), to-Decimal (using CDec() ), to-Double (using CDbl() ), etc. Just replace the conversion function itself (CLng). Change the function return type, and rename all occurrences of the function variable to make everything consistent.

check out

http://www.thesitewizard.com/general/set-cron-job.shtml

for the specifics of setting your crontab directives.

 45 10 * * *

will run in the 10th hour, 45th minute of every day.

for midnight... maybe

 0 0 * * *

I had the same problem on VS 2013 and was able to fix it by changing the Platform Toolset.

You can find it in project settings, general.

E.g. switching Platform Toolset to VS 2010 will cause VS to use the Windows\v7.0A SDK.

You can check which SDK path is used by adding this to your prebuild event:

echo using SDK $(WindowsSdkDir)

I understand the OPs frustration, this usage of virtual is not for the templated abstraction that the defacto virtual modifier is effective for.

If any are still struggling with this, I would offer my view point, as I try to keep the solutions simple and the jargon to a minimum:

Entity Framework in a simple piece does utilize lazy loading, which is the equivalent of prepping something for future execution. That fits the 'virtual' modifier, but there is more to this.

In Entity Framework, using a virtual navigation property allows you to denote it as the equivalent of a nullable Foreign Key in SQL. You do not HAVE to eagerly join every keyed table when performing a query, but when you need the information -- it becomes demand-driven.

I also mentioned nullable because many navigation properties are not relevant at first. i.e. In a customer / Orders scenario, you do not have to wait until the moment an order is processed to create a customer. You can, but if you had a multi-stage process to achieve this, you might find the need to persist the customer data for later completion or for deployment to future orders. If all nav properties were implemented, you'd have to establish every Foreign Key and relational field on the save. That really just sets the data back into memory, which defeats the role of persistence.

So while it may seem cryptic in the actual execution at run time, I have found the best rule of thumb to use would be: if you are outputting data (reading into a View Model or Serializable Model) and need values before references, do not use virtual; If your scope is collecting data that may be incomplete or a need to search and not require every search parameter completed for a search, the code will make good use of reference, similar to using nullable value properties int? long?. Also, abstracting your business logic from your data collection until the need to inject it has many performance benefits, similar to instantiating an object and starting it at null. Entity Framework uses a lot of reflection and dynamics, which can degrade performance, and the need to have a flexible model that can scale to demand is critical to managing performance.

To me, that always made more sense than using overloaded tech jargon like proxies, delegates, handlers and such. Once you hit your third or fourth programming lang, it can get messy with these.

If you really want to use plain HTML (for whatever reason) and not the built-in HtmlHelper extensions, you can do it this way.

Instead of

<input id="Remember" name="Remember" type="checkbox" value="@Model.Remember" />

try using

<input id="Remember" name="Remember" type="checkbox" value="true" @(Model.Remember ? "checked" : "") />

Checkbox inputs in HTML work so that when they're checked, they send the value, and when they're not checked, they don't send anything at all (which will cause ASP.NET MVC to fallback to the default value of the field, false). Also, the value of the checkbox in HTML can be anything not just true/false, so if you really wanted, you can even use a checkbox for a string field in your model.

If you use the built-in Html.RenderCheckbox, it actually outputs two inputs: checkbox and a hidden field so that a false value is sent when the checkbox is unchecked (not just nothing). That may cause some unexpected situations, like this:

• Why does the CheckBoxFor render an additional input tag, and how can I get the value using the FormCollection?

This is a solution without creating manually a file on disc :

MultipartFile fichier = new MockMultipartFile("fileThatDoesNotExists.txt",
            "fileThatDoesNotExists.txt",
            "text/plain",
            "This is a dummy file content".getBytes(StandardCharsets.UTF_8));

The solution is to put an N in front of both the type and the SQL string to indicate it is a double-byte character string:

DECLARE @SQL NVARCHAR(100) 
SET @SQL = N'SELECT TOP 1 * FROM sys.tables' 
EXECUTE sp_executesql @SQL

Simplest solution:

public class RomanNumerals {

    private static int [] arabic = {50, 40, 10, 9, 5, 4, 1};

    private static String [] roman = {"L", "XL", "X", "IX", "V", "IV", "I"};

    public static String convert(int arabicNumber) {

        StringBuilder romanNumerals = new StringBuilder();
        int remainder = arabicNumber;

        for (int i=0;i<arabic.length;i++) {

            while (remainder >= arabic[i]) {
                romanNumerals.append(roman[i]);
                remainder -= arabic[i];
            }
        }

        return romanNumerals.toString();
    }
}

cd "Your File Location without inverted commas"

example : cd C:\Users*****\Desktop\directory\target

java -jar myjar.jar

example bat file looks like this:

@echo OFF
cd C:\Users\****\Desktop\directory\target
java -jar myjar.jar

This will work fine.

function aecho {
  set "$1[$2]"
  echo "${!1}"
}

Example

$ foo=(dog cat bird)

$ aecho foo 1
cat

columnDefinition will override the sql DDL generated by hibernate for this particular column, it is non portable and depends on what database you are using. You can use it to specify nullable, length, precision, scale... ect.

The other answers are correct. However, I sometimes find that I want to open the figure object later. For example, I might want to change the label sizes, add a grid, or do other processing. In a perfect world, I would simply rerun the code generating the plot, and adapt the settings. Alas, the world is not perfect. Therefore, in addition to saving to PDF or PNG, I add:

with open('some_file.pkl', "wb") as fp:
    pickle.dump(fig, fp, protocol=4)

Like this, I can later load the figure object and manipulate the settings as I please.

I also write out the stack with the source-code and locals() dictionary for each function/method in the stack, so that I can later tell exactly what generated the figure.

NB: Be careful, as sometimes this method generates huge files.

I think the problem may be that you are not finding your element because of the "#" in your call to get it:

window.parent.document.getElementById('#target'); 

You only need the # if you are using jquery. Here it should be:

window.parent.document.getElementById('target'); 

I like to stay away from the marshaller.

Using CString newString(originalString);

Seems much cleaner and faster to me. No need to worry about creating and deleting a context.

In response to the comment from @poshest above, here is a React Native version of the Clock code previously posted in React (sorry, I was unable to comment on the section directly, otherwise I would have added the code there):

React Native code sample

import { AppRegistry } from 'react-native';
import React, { Component } from 'react';
import { View, Text, StyleSheet } from 'react-native';

class Clock extends Component {
  constructor(props) {
    super(props);
    this.state = { date: new Date() };
  }

  componentDidMount() {
    this.timerID = setInterval(
      () => this.tick(),
      1000
    );
  }

  componentWillUnmount() {
    clearInterval(this.timerID);
  }

  tick() {
    this.setState({
      date: new Date()
    });
  }

  render() {
    return (
      <View style={styles.container}>
        <Text style={styles.sectionTitle}>Hello, world!</Text>
        <Text style={styles.sectionDescription}>It is {this.state.date.toLocaleTimeString()}.</Text>
      </View>
    );
  }
}

const styles = StyleSheet.create({
  container: {
    backgroundColor: 'white',
    flex: 1,
    justifyContent: 'center',
  },
  sectionTitle: {
    fontSize: 24,
    fontWeight: '600',
    color: 'black',
    alignSelf: 'center',
  },
  sectionDescription: {
    marginTop: 8,
    fontSize: 18,
    fontWeight: '400',
    color: 'darkgrey',
    alignSelf: 'center',
  },
});

AppRegistry.registerComponent("clock", () => Clock);

Note that the styling is entirely my choice and does not seek to replicate directly the <h1> and <h2> tags used in the React code.

Trim the leading and trailing white space from both the client_id and client_secret. Google's copy button does not do this for you.

Set both the email address and product name fields for the OAuth consent screen.

While most people blindly follow the advice of the javadoc, there are very specific situations where you want to actually avoid toString(). For example, I'm using enums in my Java code, but they need to be serialized to a database, and back again. If I used toString() then I would technically be subject to getting the overridden behavior as others have pointed out.

Additionally one can also de-serialize from the database, for example, this should always work in Java:

MyEnum taco = MyEnum.valueOf(MyEnum.TACO.name());

Whereas this is not guaranteed:

MyEnum taco = MyEnum.valueOf(MyEnum.TACO.toString());

By the way, I find it very odd for the Javadoc to explicitly say "most programmers should". I find very little use-case in the toString of an enum, if people are using that for a "friendly name" that's clearly a poor use-case as they should be using something more compatible with i18n, which would, in most cases, use the name() method.

You don't need an onclick. Assuming you're using Bootstrap 3 Bootstrap 3 Documentation

<div class="span4 proj-div" data-toggle="modal" data-target="#GSCCModal">Clickable content, graphics, whatever</div>

<div id="GSCCModal" class="modal fade" tabindex="-1" role="dialog" aria-labelledby="myModalLabel" aria-hidden="true">
 <div class="modal-dialog">
    <div class="modal-content">
      <div class="modal-header">
        <button type="button" class="close" data-dismiss="modal" aria-hidden="true">&times;  </button>
        <h4 class="modal-title" id="myModalLabel">Modal title</h4>
      </div>
      <div class="modal-body">
        ...
      </div>
      <div class="modal-footer">
        <button type="button" class="btn btn-default" data-dismiss="modal">Close</button>
        <button type="button" class="btn btn-primary">Save changes</button>
      </div>
    </div>
  </div>
</div>

If you're using Bootstrap 2, you'd follow the markup here: http://getbootstrap.com/2.3.2/javascript.html#modals

For some international keyboards, you may need to press "+Space to get a ".

So in those case you would have to press "Space+y or "Space*y

I think both of the answers are not fully correct. For example, suppose that we have the following arrays;
y_actual = [1, 1, 0, 0, 0, 1, 0, 1, 0, 0, 0]

y_predic = [1, 1, 1, 0, 0, 0, 1, 1, 0, 1, 0]

If we compute the FP, FN, TP and TN values manually, they should be as follows:

FP: 3 FN: 1 TP: 3 TN: 4

However, if we use the first answer, results are given as follows:

FP: 1 FN: 3 TP: 3 TN: 4

They are not correct, because in the first answer, False Positive should be where actual is 0, but the predicted is 1, not the opposite. It is also same for False Negative.

And, if we use the second answer, the results are computed as follows:

FP: 3 FN: 1 TP: 4 TN: 3

True Positive and True Negative numbers are not correct, they should be opposite.

Am I correct with my computations? Please let me know if I am missing something.

Since there is no accepted answer I will try to answer this one:

[s] - seconds

You can try using the Wshshell.Run method which gives you little control of the process you start with it. Or you could use the WshShell.Exec method which will give you control to terminate it, get a response, pass more parameters (other than commandline args), get status, and others

To use Run (Simple Method)

Dim ProgramPath, WshShell, ProgramArgs, WaitOnReturn,intWindowStyle
Set WshShell=CreateObject ("WScript.Shell")
ProgramPath="c:\test run script.vbs"
ProgramArgs="/hello /world"
intWindowStyle=1
WaitOnReturn=True
WshShell.Run Chr (34) & ProgramPath & Chr (34) & Space (1) & ProgramArgs,intWindowStyle, WaitOnReturn

ProgramPath is the full path to your script you want to run
ProgramArgs is the arguments you want to pass to the script. (NOTE: the arguments are separated by a space, if you want to use an argument that contains a space then you will have to enclose that argument in quotes [Safe way to do this is use CHR (34) Example ProgramArgs= chr (34) & "/Hello World" & chr (34)])
IntWindowStyle is the integer that determines how the window will be displayed. More info on this and WaitOnReturn can be found here WshShell.Run Method
WaitOnReturn if true then the script will pause until the command has terminated, if false then the script will continue right after starting command.

NOTE: The Run method can return the exit code but you must set WaitOnReturn to True, and assign the 'WshShell.Run' to a variable. (EX: ExitCode=WshShell.Run (Command,intWindowStyle,True))

To Use EXEC (Advanced Method)

Dim ProgramPath, WshShell, ProgramArgs, Process, ScriptEngine
Set WshShell=CreateObject ("WScript.Shell")
ProgramPath="c:\test run script.vbs"
ProgramArgs="/hello /world"
ScriptEngine="CScript.exe"
Set Process=WshShell.Exec (ScriptEngine & space (1) & Chr(34) & ProgramPath & Chr (34) & Space (1) & ProgramArgs)
Do While Process.Status=0
    'Currently Waiting on the program to finish execution.
    WScript.Sleep 300
Loop

ProgramPath same as Run READ RUN'S DESCRIPTION
ProgramArgs DITTO
ScriptEngine The Engine you will be using for executing the script. since the exec method requires a win32 application, you need to specify this. Usually either "WScript.exe" or "CScript.exe". Note that in order to use stdin and stdout (we'll cover what these are a bit further down) you must choose "CScript.exe".
Process this is the Object that references to the program the script will start. It has several members and they are: ExitCode, ProcessID, Status, StdErr, StdIn, StdOut, Terminate.

More Details about the members of Process Object

1. ExitCode This is the exit code that is returned when the process terminates.
2. ProcessID This is the ID that is assigned to the process, every process has an unique processID.
3. Status This is a code number that indicates the status of the process, it get set to '-1' when the process terminates.
4. StdErr This is the object that represents the Standard Error Stream
5. StdIn This is the Object that represents the Standard Input Stream, use it to write additional parameters or anything you want to pass to the script you are calling. (Process.StdIn.WriteLine "Hello Other Worlds")
6. StdOut This is the Object that represents the Standard Output Stream, It is READONLY so you can use Process.StdOut.ReadLine. This is the stream that the called script will receive any information sent by the calling script's stdin. If you used the stdin's example then StdOut.Readline will return "Hello Other Worlds". If there is nothing to read then the script will hang while waiting for an output. meaning the script will appear to be Not Responding
   Note: you can use Read or ReadAll instead of ReadLine if you want. Use Read (X) if you want to read X amount of characters. Or ReadAll if you want the rest of the stream.
7. Terminate Call this method to force terminate the process.

For more information about WshShell.Exec go to Exec Method Windows Scripting Host

I had the same problem. I googled it for two days. At last I accidentally noticed that the problem was access modifier of the constructor of the Controller. I didn’t put the public key word behind the Controller’s constructor.

public class MyController : ApiController
    {
        private readonly IMyClass _myClass;

        public MyController(IMyClass myClass)
        {
            _myClass = myClass;
        }
    }

I add this experience as another answer maybe someone else made a similar mistake.

Finally I got the solution

sudo ln -s /etc/phpmyadmin/apache.conf /etc/apache2/conf-available/phpmyadmin.conf
sudo a2enconf phpmyadmin
sudo service apache2 reload

More about https://askubuntu.com/questions/55280/phpmyadmin-is-not-working-after-i-installed-it

You can use a WScript object and call the Sleep method on it:

Set WScript = CreateObject("WScript.Shell")
WScript.Sleep 2000 'Sleeps for 2 seconds

Another option is to import and use the WinAPI function directly (only works in VBA, thanks @Helen):

Declare Sub Sleep Lib "kernel32" (ByVal dwMilliseconds As Long)
Sleep 2000

If you want to make it fast, you could use a lookup table like in Bit Twiddling Hacks (integer log2 only).

uint32_t v; // find the log base 2 of 32-bit v
int r;      // result goes here

static const int MultiplyDeBruijnBitPosition[32] = 
{
  0, 9, 1, 10, 13, 21, 2, 29, 11, 14, 16, 18, 22, 25, 3, 30,
  8, 12, 20, 28, 15, 17, 24, 7, 19, 27, 23, 6, 26, 5, 4, 31
};

v |= v >> 1; // first round down to one less than a power of 2 
v |= v >> 2;
v |= v >> 4;
v |= v >> 8;
v |= v >> 16;

r = MultiplyDeBruijnBitPosition[(uint32_t)(v * 0x07C4ACDDU) >> 27];

In addition you should take a look at your compilers builtin methods like _BitScanReverse which could be faster because it may entirely computed in hardware.

Take also a look at possible duplicate How to do an integer log2() in C++?

Expanding on this method, applied to finding the mode of the data where you may need the index of the actual array to see how far away the value is from the center of the distribution.

(_, idx, counts) = np.unique(a, return_index=True, return_counts=True)
index = idx[np.argmax(counts)]
mode = a[index]

Remember to discard the mode when len(np.argmax(counts)) > 1

This little application does the job for me. I could not find another CLI based client that would access my IIS based TLS/SSL secured ftp site: http://netwinsite.com/surgeftp/sslftp.htm

Yes. Using the JsonConvert class which contains helper methods for this precise purpose:

// To convert an XML node contained in string xml into a JSON string   
XmlDocument doc = new XmlDocument();
doc.LoadXml(xml);
string jsonText = JsonConvert.SerializeXmlNode(doc);

// To convert JSON text contained in string json into an XML node
XmlDocument doc = JsonConvert.DeserializeXmlNode(json);

Documentation here: Converting between JSON and XML with Json.NET

You can simply define the key to use directly when running the command:

ansible-playbook \
        \ # Super verbose output incl. SSH-Details:
    -vvvv \
        \ # The Server to target: (Keep the trailing comma!)
    -i "000.000.0.000," \
        \ # Define the key to use:
    --private-key=~/.ssh/id_rsa_ansible \
        \ # The `env` var is needed if `python` is not available:
    -e 'ansible_python_interpreter=/usr/bin/python3' \ # Needed if `python` is not available
        \ # Dry–Run:
    --check \
    deploy.yml

Copy/ Paste:

ansible-playbook -vvvv --private-key=/Users/you/.ssh/your_key deploy.yml

If you are running spring cloud application, make sure your boot version matches cloud version. You can check the version compatibility matrix at the bottom of this page : https://spring.io/projects/spring-cloud.

onclick = "setTimeout(function() { document.getElementById('div1').style.display='none';document.getElementById('div2').style.display='none'}, 1000)"

Change 1000 to the number of milliseconds you want to delay.

A simple answer would be : No, it doesn't

Explanation : According to the definition of unique constraints (SQL-92)

A unique constraint is satisfied if and only if no two rows in a table have the same non-null values in the unique columns

This statement can have two interpretations as :

• No two rows can have same values i.e. NULL and NULL is not allowed
• No two non-null rows can have values i.e NULL and NULL is fine, but StackOverflow and StackOverflow is not allowed

Since MySQL follows second interpretation, multiple NULL values are allowed in UNIQUE constraint column. Second, if you would try to understand the concept of NULL in SQL, you will find that two NULL values can be compared at all since NULL in SQL refers to unavailable or unassigned value (you can't compare nothing with nothing). Now, if you are not allowing multiple NULL values in UNIQUE constraint column, you are contracting the meaning of NULL in SQL. I would summarise my answer by saying :

MySQL supports UNIQUE constraint but not on the cost of ignoring NULL values

newTitle is a local variable where you create the fields. So when that functions ends, the variable newTitle, does not exist anymore. (The JTextField that was referenced by newTitle does still exist however.)

Thus, increase the scope of the variable, so that you can access it another method.

public SomeFrame extends JFrame {
   JTextField myTitle;//can be used anywhere in this class

   creationOfTheFields()
   {
   //other code
      myTitle = new JTextField("spam");  
      myTitle.setBounds(80, 40, 225, 20);
      options.add(myTitle);
   //blabla other code
   }

   private void New_Name()  
   {  
      this.setTitle(myTitle.getText());  
   } 
}

In my opinion, deferreds/promises (as you have mentionned) is the way to go, rather than using timeouts.

Here is an example I have just written to demonstrate how you could do it using deferreds/promises.

Take some time to play around with deferreds. Once you really understand them, it becomes very easy to perform asynchronous tasks.

Hope this helps!

$(function(){
    function1().done(function(){
        // function1 is done, we can now call function2
        console.log('function1 is done!');

        function2().done(function(){
            //function2 is done
            console.log('function2 is done!');
        });
    });
});

function function1(){
    var dfrd1 = $.Deferred();
    var dfrd2= $.Deferred();

    setTimeout(function(){
        // doing async stuff
        console.log('task 1 in function1 is done!');
        dfrd1.resolve();
    }, 1000);

    setTimeout(function(){
        // doing more async stuff
        console.log('task 2 in function1 is done!');
        dfrd2.resolve();
    }, 750);

    return $.when(dfrd1, dfrd2).done(function(){
        console.log('both tasks in function1 are done');
        // Both asyncs tasks are done
    }).promise();
}

function function2(){
    var dfrd1 = $.Deferred();
    setTimeout(function(){
        // doing async stuff
        console.log('task 1 in function2 is done!');
        dfrd1.resolve();
    }, 2000);
    return dfrd1.promise();
}

I was getting same kinda error but after copying the ojdbc14.jar into lib folder, no more exception.(copy ojdbc14.jar from somewhere and paste it into lib folder inside WebContent.)

I found Array.prototype.reverse unsuccessful with objects, so I made a new jQuery function to use as an alternative: jQuery.eachBack(). It iterates through as the normal jQuery.each() would, and stores each key into an array. It then reverses that array and performs the callback on the original array/object in the order of the reversed keys.

jQuery.eachBack=function (obj, callback) {
    var revKeys=[]; $.each(obj,function(rind,rval){revKeys.push(rind);}); 
    revKeys.reverse();
    $.each(revKeys,function (kind,i){
        if(callback.call(obj[i], i, obj[i]) === false) {    return false;}
    });
    return obj;
}   
jQuery.fn.eachBack=function (callback,args) {
    return jQuery.eachBack(this, callback, args);
}

You can set a default style for the entire workbook (all worksheets):

$objPHPExcel->getDefaultStyle()
    ->getBorders()
    ->getTop()
        ->setBorderStyle(PHPExcel_Style_Border::BORDER_THIN);
$objPHPExcel->getDefaultStyle()
    ->getBorders()
    ->getBottom()
        ->setBorderStyle(PHPExcel_Style_Border::BORDER_THIN);
$objPHPExcel->getDefaultStyle()
    ->getBorders()
    ->getLeft()
        ->setBorderStyle(PHPExcel_Style_Border::BORDER_THIN);
$objPHPExcel->getDefaultStyle()
    ->getBorders()
    ->getRight()
        ->setBorderStyle(PHPExcel_Style_Border::BORDER_THIN);

or

  $styleArray = array(
      'borders' => array(
          'allborders' => array(
              'style' => PHPExcel_Style_Border::BORDER_THIN
          )
      )
  );
$objPHPExcel->getDefaultStyle()->applyFromArray($styleArray);

And this can be used for all style properties, not just borders.

But column autosizing is structural rather than stylistic, and has to be set for each column on each worksheet individually.

EDIT

Note that default workbook style only applies to Excel5 Writer

Dialect means "the variant of a language". Hibernate, as we know, is database agnostic. It can work with different databases. However, databases have proprietary extensions/native SQL variations, and set/sub-set of SQL standard implementations. Therefore at some point hibernate has to use database specific SQL. Hibernate uses "dialect" configuration to know which database you are using so that it can switch to the database specific SQL generator code wherever/whenever necessary.

using DotNetZip (available as nuget package):

public void Zip(string source, string destination)
{
    using (ZipFile zip = new ZipFile
    {
        CompressionLevel = CompressionLevel.BestCompression
    })
    {
        var files = Directory.GetFiles(source, "*",
            SearchOption.AllDirectories).
            Where(f => Path.GetExtension(f).
                ToLowerInvariant() != ".zip").ToArray();

        foreach (var f in files)
        {
            zip.AddFile(f, GetCleanFolderName(source, f));
        }

        var destinationFilename = destination;

        if (Directory.Exists(destination) && !destination.EndsWith(".zip"))
        {
            destinationFilename += $"\\{new DirectoryInfo(source).Name}-{DateTime.Now:yyyy-MM-dd-HH-mm-ss-ffffff}.zip";
        }

        zip.Save(destinationFilename);
    }
}

private string GetCleanFolderName(string source, string filepath)
{
    if (string.IsNullOrWhiteSpace(filepath))
    {
        return string.Empty;
    }

    var result = filepath.Substring(source.Length);

    if (result.StartsWith("\\"))
    {
        result = result.Substring(1);
    }

    result = result.Substring(0, result.Length - new FileInfo(filepath).Name.Length);

    return result;
}

Usage:

Zip(@"c:\somefolder\subfolder\source", @"c:\somefolder2\subfolder2\dest");

Or

Zip(@"c:\somefolder\subfolder\source", @"c:\somefolder2\subfolder2\dest\output.zip");

$('#multiselect1').on('change', function(){
    var selected = $(this).find("option:selected");
    var arrSelected = [];
    selected.each(function(){
       arrSelected.push($(this).val());
    });
});

Java versions before version 7 allow for these three combinations of try-catch-finally...

try - catch
try - catch - finally
try - finally

finally block will be always executed no matter of what's going on in the try or/and catch block. so if there is no catch block, the exception won't be handled here.

However, you will still need an exception handler somewhere in your code - unless you want your application to crash completely of course. It depends on the architecture of your application exactly where that handler is.

• Java try block must be followed by either catch or finally block.
• For each try block there can be zero or more catch blocks, but only one finally block.
• The finally block will not be executed if program exits(either by calling System.exit() or by causing a fatal error that causes the process to abort).

You will have to set your custom WebviewClient overriding shouldOverrideUrlLoading method for your webview before loading the url.

mWebView.setWebViewClient(new WebViewClient()
        {
            @SuppressWarnings("deprecation")
            @Override
            public boolean shouldOverrideUrlLoading(WebView webView, String url)
            {
                return shouldOverrideUrlLoading(url);
            }

            @TargetApi(Build.VERSION_CODES.N)
            @Override
            public boolean shouldOverrideUrlLoading(WebView webView, WebResourceRequest request)
            {
                Uri uri = request.getUrl();
                return shouldOverrideUrlLoading(uri.toString());
            }

            private boolean shouldOverrideUrlLoading(final String url)
            {
                Log.i(TAG, "shouldOverrideUrlLoading() URL : " + url);

                // Here put your code

                return true; // Returning True means that application wants to leave the current WebView and handle the url itself, otherwise return false.
            }
        });

Checkout the example code for handling redirect urls and open PDF without download, in webview. https://gist.github.com/ashishdas09/014a408f9f37504eb2608d98abf49500

There is actually a nice Gem called local_time by basecamp to do all of that on client side only, I believe:

https://github.com/basecamp/local_time

If you're using this for currency, and also want the value to be seperated by ,'s you can use

$ {:,.f2}.format(currency_value).

e.g.:

currency_value = 1234.50

$ {:,.f2}.format(currency_value) --> $ 1,234.50

Here is a bit of code I wrote some time ago:

print("> At the end of year " + year_string + " total paid is \t$ {:,.2f}".format(total_paid))

> At the end of year   1  total paid is         $ 43,806.36
> At the end of year   2  total paid is         $ 87,612.72
> At the end of year   3  total paid is         $ 131,419.08
> At the end of year   4  total paid is         $ 175,225.44
> At the end of year   5  total paid is         $ 219,031.80   <-- Note .80 and not .8
> At the end of year   6  total paid is         $ 262,838.16
> At the end of year   7  total paid is         $ 306,644.52
> At the end of year   8  total paid is         $ 350,450.88
> At the end of year   9  total paid is         $ 394,257.24
> At the end of year  10  total paid is         $ 438,063.60   <-- Note .60 and not .6
> At the end of year  11  total paid is         $ 481,869.96
> At the end of year  12  total paid is         $ 525,676.32
> At the end of year  13  total paid is         $ 569,482.68
> At the end of year  14  total paid is         $ 613,289.04
> At the end of year  15  total paid is         $ 657,095.40   <-- Note .40 and not .4  
> At the end of year  16  total paid is         $ 700,901.76
> At the end of year  17  total paid is         $ 744,708.12
> At the end of year  18  total paid is         $ 788,514.48
> At the end of year  19  total paid is         $ 832,320.84
> At the end of year  20  total paid is         $ 876,127.20   <-- Note .20 and not .2

After reviewing the other's answers above and finding Matt Gallagher's discussion here

I propose this:

NSMutableArray * reverseArray = [NSMutableArray arrayWithCapacity:[myArray count]]; 

for (id element in [myArray reverseObjectEnumerator]) {
    [reverseArray addObject:element];
}

As Matt observes:

In the above case, you may wonder if -[NSArray reverseObjectEnumerator] would be run on every iteration of the loop — potentially slowing down the code. <...>

Shortly thereafter, he answers thus:

<...> The "collection" expression is only evaluated once, when the for loop begins. This is the best case, since you can safely put an expensive function in the "collection" expression without impacting upon the per-iteration performance of the loop.

If you have SELinux running, you might have to grant httpd permission to read from /home dir using:

 sudo setsebool httpd_read_user_content=1

// Click Right Icon

editText.setOnTouchListener(new View.OnTouchListener() {
            @Override
            public boolean onTouch(View v, MotionEvent event) {
                final int DRAWABLE_RIGHT = 2;

                if(event.getAction() == MotionEvent.ACTION_UP) {
                    if(event.getRawX() >= (createEventBinding.etAddressLine1.getRight() - createEventBinding.etAddressLine1.getCompoundDrawables()[DRAWABLE_RIGHT].getBounds().width())) {
                        // your action here

                        Toast.makeText(getActivity(), "Right icon click", Toast.LENGTH_SHORT).show();

                        return true;
                    }
                }
                return false;
            }
        });

In addition to the RFC Spec you can also see this in action. Check out the twitter responses.

https://developer.twitter.com/en/docs/ads/general/guides/response-codes

I found what I think is a faster solution. Install Git for Windows from here: http://git-scm.com/download/win

That automatically adds its path to the system variable during installation if you tell the installer to do so (it asks for that). So you don't have to edit anything manually.

Just close and restart Android Studio if it's open and you're ready to go.

SELECT id, amount
FROM report
WHERE type='P'

UNION

SELECT id, (amount * -1) AS amount
FROM report
WHERE type = 'N'

ORDER BY id;

How do you run a program all by itself without an operating system running?

You place your binary code to a place where processor looks for after rebooting (e.g. address 0 on ARM).

Can you create assembly programs that the computer can load and run at startup ( e.g. boot the computer from a flash drive and it runs the program that is on the drive)?

General answer to the question: it can be done. It's often referred to as "bare metal programming". To read from flash drive, you want to know what's USB, and you want to have some driver to work with this USB. The program on this drive would also have to be in some particular format, on some particular filesystem... This is something that boot loaders usually do, but your program could include its own bootloader so it's self-contained, if the firmware will only load a small block of code.

Many ARM boards let you do some of those things. Some have boot loaders to help you with basic setup.

Here you may find a great tutorial on how to do a basic operating system on a Raspberry Pi.

Edit: This article, and the whole wiki.osdev.org will anwer most of your questions http://wiki.osdev.org/Introduction

Also, if you don't want to experiment directly on hardware, you can run it as a virtual machine using hypervisors like qemu. See how to run "hello world" directly on virtualized ARM hardware here.

In terms of speed, it's no competition for empty lists/dicts:

>>> from timeit import timeit
>>> timeit("[]")
0.040084982867934334
>>> timeit("list()")
0.17704233359267718
>>> timeit("{}")
0.033620194745424214
>>> timeit("dict()")
0.1821558326547077

and for non-empty:

>>> timeit("[1,2,3]")
0.24316302770330367
>>> timeit("list((1,2,3))")
0.44744206316727286
>>> timeit("list(foo)", setup="foo=(1,2,3)")
0.446036018543964
>>> timeit("{'a':1, 'b':2, 'c':3}")
0.20868602015059423
>>> timeit("dict(a=1, b=2, c=3)")
0.47635635255323905
>>> timeit("dict(bar)", setup="bar=[('a', 1), ('b', 2), ('c', 3)]")
0.9028228448029267

Also, using the bracket notation lets you use list and dictionary comprehensions, which may be reason enough.

You need to Enable Annotation Processing on IntelliJ IDEA

> Settings > Build, Execution, Deployment > Compiler > Annotation Processors

HTTP interface for MongoDB Deprecated since version 3.2 :)

Check Mongo Docs: HTTP Status Interface

#include<iostream>
using namespace std;

class A
{
    public:
        struct Assign
        {
            public:
                int a=10;
                float b=20.5;
            private:
                double c=30.0;
                long int d=40;
         };
         struct Assign ALT;
};

class B: public A
{
public:
    int x = 10;
private:
    float y = 20.8;
};

int main()
{
   B myobj;
   A obj;
   //cout<<myobj.a<<endl;
   //cout<<myobj.b<<endl;
   //cout<<obj.a<<endl;
   //cout<<obj.b<<endl;
   cout<<myobj.ALT.a<<endl;

    return 0;
}

    enter code here

There is a comment about this under this answer, but I think it's important to list it here. If you want to preserve your settings, export them first because they will be lost.

From MSDN forums - since I had to hunt around far too much to find the solution to this:

1. Close Visual Studio
2. Start the Developer Command prompt installed with Visual Studio as an administrator.
3. type 'devenv /resetuserdata' ('wdexpress /resetuserdata' for Express SKUs)
4. Start Visual Studio Normally.

Worked for me.

You can maybe use :

<form method="post" action=" " onSubmit="window.location.reload()">

What worked for me on Windows was:

1) Closing Eclipse 2) Running Avd UI 3) Closing all running processes, especially ones that are heavy in memory, like Chrome, explorer.exe, etc 4) Start the emulator 5) Win

I've found that you can move div elements to the next line simply by setting the property Display: block;

On each div.

print_r(unpack("H*","The quick fox jumped over the lazy brown dog"))

Array ( [1] => 54686520717569636b20666f78206a756d706564206f76657220746865206c617a792062726f776e20646f67 ) 

T = 0x54, h = 0x68, ...

You can split the result into two-hex-character chunks if necessary.

ienumerable:when we want to deal with inprocess memory, i.e without dataconnection iqueryable:when to deal with sql server, i.e with data connection ilist : operations like add object, delete object etc

There are multiple answers to this question, partly due to ambiguous question - the title is talking about classes loaded by the JVM, whereas the contents of the question says "may or may not be loaded by the JVM".

Assuming that OP needs classes that are loaded by the JVM by a given classloader, and only those classes - my need as well - there is a solution (elaborated here) that goes like this:

import java.net.URL;
import java.util.Enumeration;
import java.util.Iterator;
import java.util.Vector;

public class CPTest {

    private static Iterator list(ClassLoader CL)
        throws NoSuchFieldException, SecurityException,
        IllegalArgumentException, IllegalAccessException {
        Class CL_class = CL.getClass();
        while (CL_class != java.lang.ClassLoader.class) {
            CL_class = CL_class.getSuperclass();
        }
        java.lang.reflect.Field ClassLoader_classes_field = CL_class
                .getDeclaredField("classes");
        ClassLoader_classes_field.setAccessible(true);
        Vector classes = (Vector) ClassLoader_classes_field.get(CL);
        return classes.iterator();
    }

    public static void main(String args[]) throws Exception {
        ClassLoader myCL = Thread.currentThread().getContextClassLoader();
        while (myCL != null) {
            System.out.println("ClassLoader: " + myCL);
            for (Iterator iter = list(myCL); iter.hasNext();) {
                System.out.println("\t" + iter.next());
            }
            myCL = myCL.getParent();
        }
    }

}

One of the neat things about it is that you can choose an arbitrary classloader you want to check. It is however likely to break should internals of classloader class change, so it is to be used as one-off diagnostic tool.

using System.Net.NetworkInformation;    

public static bool PingHost(string nameOrAddress)
{
    bool pingable = false;
    Ping pinger = null;

    try
    {
        pinger = new Ping();
        PingReply reply = pinger.Send(nameOrAddress);
        pingable = reply.Status == IPStatus.Success;
    }
    catch (PingException)
    {
        // Discard PingExceptions and return false;
    }
    finally
    {
        if (pinger != null)
        {
            pinger.Dispose();
        }
    }

    return pingable;
}

ALTER TABLE *table_name*
MODIFY *column_name* DEFAULT *value*;

worked in Oracle

e.g:

ALTER TABLE MY_TABLE
MODIFY MY_COLUMN DEFAULT 1;

I'd like to add complementary information: In postman app you may use the "request" object to see your subsituted input data. (refer to https://www.getpostman.com/docs/postman/scripts/postman_sandbox in paragraph "Request/response related properties", ie.

console.log("header : " + request.headers["Content-Type"]);
console.log("body : " + request.data);
console.log("url : " + request.url);

I didn't test for header substitution but it works for url and body.

Alex

Generally if the installation went smoothly, it will create the desktop icons/folders. Maybe check the installation summary log to see if there's any underlying errors.

It should be located C:\Program Files\Microsoft SQL Server\100\Setup Bootstrap\Log(date stamp)\

You need to add the python.exe in C://.../Anaconda3 installation file as well as C://.../Anaconda3/Scripts to PATH.

First go to your installation directory, in my case it is installed in C://Users/user/Anaconda3 and shift+right click and press "Open command window here" or it might be "Open powershell here", if it is powershell, just write cmd and hit enter to run command window. Then run the following command setx PATH %cd%

Then go to C://Users/user/Anaconda3/Scripts and open the command window there as above, then run the same command "setx PATH %cd%"

minimalist

counter=0
((counter++))
echo $counter

I had a long-running next-version branch with tons of deletions to files that had changed on develop, files that had been added in different places on both branches, etc.

I wanted to take the entire contents of the next-version branch into develop, all in one whopping merge commit.

The combination of the above commands that worked for me was:

git merge -X theirs next-version
# lots of files left that were modified on develop but deleted on next-version
git checkout next-version .
# files removed, now add the deletions to the commit
git add .
# still have files that were added on develop; in my case they are all in web/
git rm -r web

Not a new answer, just combining bits from many answers, partly to reassure that you might need all of these answers.

ToAddress = "[email protected]"
ToAddress1 = "[email protected]"
ToAddress2 = "[email protected]"
MessageSubject = "It works!."
Set ol = CreateObject("Outlook.Application")
Set newMail = ol.CreateItem(olMailItem)
newMail.Subject = MessageSubject
newMail.RecipIents.Add(ToAddress)
newMail.RecipIents.Add(ToAddress1)
newMail.RecipIents.Add(ToAddress2)
newMail.Send

No requires converting the Task to int. Simply Use The Task Result.

int taskResult = AccessTheWebAndDouble().Result;

public async Task<int> AccessTheWebAndDouble()
{
    int task = AccessTheWeb();
    return task;
}

It will return the value if available otherwise it return 0.

  var url = ConfigurationManager.AppSettings["ServiceProviderUrl"];

You should use jmap -heap:format=b <process-id> without any paths. So it creates a *.bin file which you can open with jvisualvm.exe (same path as jmap). It's a great tool to open such dump files.

there's nothing wrong with using CHAR like that.. I think your problem is that you have a space in your tablename. It should be: charteredflight or chartered_flight..

about photo screenshot, FLAG_SECURE not working rooted device.

but if you monitor the screenshot file, you can prevent from getting original file.

try this one.

1. monitoring screenshot(file monitor) with android remote service
2. delete original screenshot image.
3. deliver the bitmap instance so you can modify.

The whole code if somebody need it.

void alarm(Context context, Calendar calendar) {
    AlarmManager alarmManager = (AlarmManager)context.getSystemService(ALARM_SERVICE);

    final String SOME_ACTION = "com.android.mytabs.MytabsActivity.AlarmReceiver";
    IntentFilter intentFilter = new IntentFilter(SOME_ACTION);

    AlarmReceiver mReceiver = new AlarmReceiver();
    context.registerReceiver(mReceiver, intentFilter);

    Intent anotherIntent = new Intent(SOME_ACTION);
    PendingIntent pendingIntent = PendingIntent.getBroadcast(context, 0, anotherIntent, 0);
    alramManager.set(AlarmManager.RTC_WAKEUP, calendar.getTimeInMillis(), pendingIntent);

    Toast.makeText(context, "Added", Toast.LENGTH_LONG).show();
}

class AlarmReceiver extends BroadcastReceiver {     
    @Override
    public void onReceive(Context context, Intent arg1) {
        Toast.makeText(context, "Started", Toast.LENGTH_LONG).show();
    }
}

How can I roll back my previous 4 commits locally in a branch?

Which means, you are not creating new branch and going into detached state. New way of doing that is:

git switch --detach revison

In Java an array has a fixed size (after initialisation), meaning that you can't add or remove items from an array.

int[] i = new int[10];

The above snippet mean that the array of integers has a length of 10. It's not possible add an eleventh integer, without re-assign the reference to a new array, like the following:

int[] i = new int[11];

In Java the package java.util contains all kinds of data structures that can handle adding and removing items from array-like collections. The classic data structure Stack has methods for push and pop.

Those errors :

"CMake Error: CMAKE_C_COMPILER not set, after EnableLanguage

CMake Error: CMAKE_CXX_COMPILER not set, after EnableLanguage"

means you haven't installed mingw32-base.

Go to http://sourceforge.net/projects/mingw/files/latest/download?source=files

and then make sure you select "mingw32-base"

Make sure you set up environment variables correctly in PATH section. "C:\MinGW\bin"

After that open CMake and Select Installation --> Delete Cache.

And click configure button again. I solved the problem this way, hope you solve the problem.

if you have mount points add the the SQL server service account to volume security accordingly

For the Android library projects, I do it as in the attached screenshot:

Right click the project, select Properties->Android and in the library section click Add. From here you can select the available libraries.

If you are importing a jar file, then importing them as jar or external jar, as other posters posted would work. I prefer to copy/paste jar file in the libs folder (create one if it doesn't exist) and then import as jar.

The Swift Programming Language states:

Classes and structures must set all of their stored properties to an appropriate initial value by the time an instance of that class or structure is created. Stored properties cannot be left in an indeterminate state.

You can set an initial value for a stored property within an initializer, or by assigning a default property value as part of the property’s definition.

Therefore, you can write:

class myClass {

    var delegate: AppDelegate //non-optional variable

    init() {
        delegate = UIApplication.sharedApplication().delegate as AppDelegate
    }

}

Or:

class myClass {

    var delegate = UIApplication.sharedApplication().delegate as AppDelegate //non-optional variable

    init() {
        println("Hello")
    }

}

Or:

class myClass {

    var delegate : AppDelegate! //implicitly unwrapped optional variable set to nil when class is initialized

    init() {
        println("Hello")
    }

    func myMethod() {
        delegate = UIApplication.sharedApplication().delegate as AppDelegate
    }

}

But you can't write the following:

class myClass {

    var delegate : AppDelegate //non-optional variable

    init() {
        println("Hello")
    }

    func myMethod() {
        //too late to assign delegate as an non-optional variable
        delegate = UIApplication.sharedApplication().delegate as AppDelegate
    }

}

Use display: inline-block, though you need to wrap it inside a DIV to keep it from actually displaying inline. Tested in Safari.

<style type="text/css">
    .fieldset-auto-width {
         display: inline-block;
    }
</style>
<div>
  <fieldset class="fieldset-auto-width">
      <legend>Blah</legend>
      ...
  </fieldset>
</div>

Use the basename method of the path module:

var path = require('path');
var filename = path.basename(__filename);
console.log(filename);

Here is the documentation the above example is taken from.

As Dan pointed out, Node is working on ECMAScript modules with the "--experimental-modules" flag. Node 12 still supports __dirname and __filename as above.

If you are using the --experimental-modules flag, there is an alternative approach.

The alternative is to get the path to the current ES module:

const __filename = new URL(import.meta.url).pathname;

And for the directory containing the current module:

import path from 'path';

const __dirname = path.dirname(new URL(import.meta.url).pathname);

With LD_PRELOAD you can give libraries precedence.

For example you can write a library which implement malloc and free. And by loading these with LD_PRELOAD your malloc and free will be executed rather than the standard ones.

This is an issue in the Chrome family and has been there forever.

A bug has been raised https://bugs.chromium.org/p/chromium/issues/detail?id=904208

It can be shown here: https://codepen.io/anon/pen/Jedvwj as soon as you add a border to anything button-like (say role="button" has been added to a tag for example) Chrome messes up and sets the focus state when you click with your mouse. You should see that outline only on keyboard tab-press.

I highly recommend using this fix: https://github.com/wicg/focus-visible.

Just do the following

npm install --save focus-visible

Add the script to your html:

<script src="/node_modules/focus-visible/dist/focus-visible.min.js"></script>

or import into your main entry file if using webpack or something similar:

import 'focus-visible/dist/focus-visible.min';

then put this in your css file:

// hide the focus indicator if element receives focus via mouse, but show on keyboard focus (on tab).
.js-focus-visible :focus:not(.focus-visible) {
  outline: none;
}

// Define a strong focus indicator for keyboard focus.
// If you skip this then the browser's default focus indicator will display instead
// ideally use outline property for those users using windows high contrast mode
.js-focus-visible .focus-visible {
  outline: magenta auto 5px;
}

You can just set:

button:focus {outline:0;}

but if you have a large number of users, you're disadvantaging those who cannot use mice or those who just want to use their keyboard for speed.

If if doesn't work then use "!Important"

@media (min-width: 1200px) { .container { width: 970px !important; } }

Here is a way to calculate memory usage of currently running application:

public static long getUsedMemorySize() {

    long freeSize = 0L;
    long totalSize = 0L;
    long usedSize = -1L;
    try {
        Runtime info = Runtime.getRuntime();
        freeSize = info.freeMemory();
        totalSize = info.totalMemory();
        usedSize = totalSize - freeSize;
    } catch (Exception e) {
        e.printStackTrace();
    }
    return usedSize;

}

MEMORY USAGE key command gives you the number of bytes that a key and its value require to be stored in RAM.

The reported usage is the total of memory allocations for data and administrative overheads that a key its value require (source redis documentation)

Ideally the pivot should be the middle value in the entire array. This will reduce the chances of getting worst case performance.

You can simply open the phpmyadmin page from your browser, then open any existing database -> go to Privileges tab, click on your root user and then a popup window will appear, you can set your password there.. Hope this Helps.

Another example, more simple than some others with simple return of incremented value:

function testIncrement1(x) {
    return x++;
}

function testIncrement2(x) {
    return ++x;
}

function testIncrement3(x) {
    return x += 1;
}

console.log(testIncrement1(0)); // 0
console.log(testIncrement2(0)); // 1
console.log(testIncrement3(0)); // 1

As you can see, no post-increment/decrement should be used at return statement, if you want this operator to influence the result. But return doesn't "catch" post-increment/decrement operators:

function closureIncrementTest() {
    var x = 0;

    function postIncrementX() {
        return x++;
    }

    var y = postIncrementX();

    console.log(x); // 1
}

You're simply overcomplicating.

if b:
   print a

Try this,

IFS=''
while read line
do
    echo $line
done < file.txt

EDIT:

From man bash

IFS - The Internal Field Separator that is used for word
splitting after expansion and to split lines into words
with  the  read  builtin  command. The default value is
``<space><tab><newline>''

I've personally never found it useful to set M2_HOME.

What counts is your $PATH environment. Hijacking part of the answer from Danix, all you need is:

export PATH=/Users/xxx/sdk/apache-maven-3.0.5/bin:$PATH

The mvn script computes M2_HOME for you anyway for what it's worth.

Your tables should have as immediate children just tbody and thead elements, with the rows within*. So, amend the HTML to be:

<table border="1" width="100%" id="test">
  <tbody>
    <tr>
     <td>
      <table border="1" width="100%">
        <tbody>
          <tr>
            <td>table 2</td>
          </tr>
        </tbody>
      </table>
     </td>
    </tr> 
    <tr><td>table 1</td></tr>
    <tr><td>table 1</td></tr>
    <tr><td>table 1</td></tr>
  </tbody>
</table>

Then amend your selector slightly to this:

#test > tbody > tr:last-child { background:#ff0000; }

See it in action here. That makes use of the child selector, which:

...separates two selectors and matches only those elements matched by the second selector that are direct children of elements matched by the first.

So, you are targeting only direct children of tbody elements that are themselves direct children of your #test table.

Alternative solution

The above is the neatest solution, as you don't need to over-ride any styles. The alternative would be to stick with your current set-up, and over-ride the background style for the inner table, like this:

#test tr:last-child { background:#ff0000; }
#test table tr:last-child { background:transparent; }

* It's not mandatory but most (all?) browsers will add these in, so it's best to make it explicit. As @BoltClock states in the comments:

...it's now set in stone in HTML5, so for a browser to be compliant it basically must behave this way.

You can try using jquery.pep.js:

jquery.pep.js is a lightweight jQuery plugin which turns any DOM element into a draggable object. It works across mostly all browsers, from old to new, from touch to click. I built it to serve a need in which jQuery UI’s draggable was not fulfilling, since it didn’t work on touch devices (without some hackery).

Website, GitHub link

try this

int intIdt = db.Users.Max(u => u.UserId);

Update:

If no record then generate exception using above code try this

int? intIdt = db.Users.Max(u => (int?)u.UserId);

In the other hand, using REST API of other servers are very popular in PHP. Suppose you are looking for a way to redirect some HTTP requests into the other server (for example getting an xml file). Here is a PHP package to help you:

https://github.com/romanpitak/PHP-REST-Client

So, getting the xml file:

$client = new Client('http://example.com');
$request = $client->newRequest('/filename.xml');
$response = $request->getResponse();
echo $response->getParsedResponse();

Just check if someone deleted the branch at remote.

One example of usage for null values is when using a HashMap as a cache for results of an expensive operation (such as a call to an external web service) which may return null.

Putting a null value in the map then allows you to distinguish between the case where the operation has not been performed for a given key (cache.containsKey(someKey) returns false), and where the operation has been performed but returned a null value (cache.containsKey(someKey) returns true, cache.get(someKey) returns null).

Without null values, you would have to either put some special value in the cache to indicate a null response, or simply not cache that response at all and perform the operation every time.

Fundamentally if you use it as part of a business then its commercial use - so its not a matter of whether the tools are directly generating income or not rather one of if they are being used in support of income generation directly or indirectly.

To take your specific example, if the purpose of the site is to sell or promote your paid services/product then its a commercial enterprise.

Given this example url:

http://www.example.com/some-dir/yourpage.php?q=bogus&n=10

$_SERVER['REQUEST_URI'] will give you:

/some-dir/yourpage.php?q=bogus&n=10

Whereas $_GET['q'] will give you:

bogus

In other words, $_SERVER['REQUEST_URI'] will hold the full request path including the querystring. And $_GET['q'] will give you the value of parameter q in the querystring.

Your OS doesn't know about en_US.UTF-8.

You didn't mention a specific platform, but I can reproduce your problem:

% uname -a
OSF1 hunter2 V5.1 2650 alpha
% perl -e exit
perl: warning: Setting locale failed.
perl: warning: Please check that your locale settings:
    LC_ALL = (unset),
    LANG = "en_US.UTF-8"
    are supported and installed on your system.
perl: warning: Falling back to the standard locale ("C").

My guess is you used ssh to connect to this older host from a newer desktop machine. It's common for /etc/ssh/sshd_config to contain

AcceptEnv LANG LC_*

which allows clients to propagate the values of those environment variables into new sessions.

The warning gives you a hint about how to squelch it if you don't require the full-up locale:

% env LANG=C perl -e exit
%

or with Bash:

$ LANG=C perl -e exit
$ 

For a permanent fix, choose one of

1. On the older host, set the LANG environment variable in your shell's initialization file.
2. Modify your environment on the client side, e.g., rather than ssh hunter2, use the command LANG=C ssh hunter2.
3. If you have administrator rights, stop ssh from sending the environment variables by commenting out the SendEnv LANG LC_* line in the local /etc/ssh/ssh_config file. (Thanks to this answer. See Bug 1285 for OpenSSH for more.)

If you really want to create an array rather than a list use either

String[] names = ["lucas", "Fred", "Mary"]

or

def names = ["lucas", "Fred", "Mary"].toArray()

use java decompiler and decompile all the .class files and save all files as project structure .

then use meld diff viewer and compare as folders ..

I'm just putting the tutorial from the link ihrupin posted here in this post.

package com.hrupin.cleaner;

import java.io.File;

import android.app.Application;
import android.util.Log;

public class MyApplication extends Application {

    private static MyApplication instance;

    @Override
    public void onCreate() {
        super.onCreate();
        instance = this;
    }

    public static MyApplication getInstance() {
        return instance;
    }

    public void clearApplicationData() {
        File cacheDirectory = getCacheDir();
        File applicationDirectory = new File(cacheDirectory.getParent());
        if (applicationDirectory.exists()) {
            String[] fileNames = applicationDirectory.list();
            for (String fileName : fileNames) {
                if (!fileName.equals("lib")) {
                    deleteFile(new File(applicationDirectory, fileName));
                }
            }
        }
    }

    public static boolean deleteFile(File file) {
        boolean deletedAll = true;
        if (file != null) {
            if (file.isDirectory()) {
                String[] children = file.list();
                for (int i = 0; i < children.length; i++) {
                    deletedAll = deleteFile(new File(file, children[i])) && deletedAll;
                }
            } else {
                deletedAll = file.delete();
            }
        }

        return deletedAll;
    }
}

So if you want a button to do this you need to call MyApplication.getInstance(). clearApplicationData() from within an onClickListener

Update: Your SharedPreferences instance might hold onto your data and recreate the preferences file after you delete it. So your going to want to get your SharedPreferences object and

prefs.edit().clear().commit();

Update:

You need to add android:name="your.package.MyApplication" to the application tag inside AndroidManifest.xml if you had not done so. Else, MyApplication.getInstance() returns null, resulting a NullPointerException.

If you need not equal object condition use cross join sequences:

var query = from obj1 in set1
from obj2 in set2
where obj1.key1 == obj2.key2 && obj1.key3.contains(obj2.key5) [...conditions...]

Here is the way I executed the program without environment variable configured.

Java file execution procedure: After you saved a file MyFirstJavaProgram.java

Enter the whole Path of "Javac" followed by java file For executing output Path of followed by comment <-cp> followed by followed by

Given below is the example of execution

C:\Program Files\Java\jdk1.8.0_101\bin>javac C:\Sample\MyFirstJavaProgram2.java C:\Program Files\Java\jdk1.8.0_101\bin>java -cp C:\Sample MyFirstJavaProgram2 Hello World

You can add this to your .bash_profile or similar:

alias mkvirtualenv3='mkvirtualenv --python=`which python3`'

Then use mkvirtualenv3 instead of mkvirtualenv when you want to create a python 3 environment.

a workaround:

var temp = $("div").text("<");
var afterEscape = temp.html(); // afterEscape == "&lt;"

async/await is the mechanism of handling promise, two ways we can do it

functionWhichReturnsPromise()
            .then(result => {
                console.log(result);
            })
            .cathc(err => {
                console.log(result);

            });

or we can use await to wait for the promise to full-filed it first, which means either it is rejected or resolved.

Now if we want to use await (waiting for a promise to fulfil) inside a function, it's mandatory that the container function must be an async function because we are waiting for a promise to fulfiled asynchronously || make sense right?.

async function getRecipesAw(){
            const IDs = await getIds; // returns promise
            const recipe = await getRecipe(IDs[2]); // returns promise
            return recipe; // returning a promise
        }

        getRecipesAw().then(result=>{
            console.log(result);
        }).catch(error=>{
            console.log(error);
        });

I am using nano editor in a Raspberry Pi with Italian OS language and Italian keyboard. Don't know the exact reason, but in this environment the shortcut is:

Ctrl+-

Just call window.location.href = new_url from your javascript and it will redirect the browser to that URL as it the user had typed that into the address bar