It should be noted that the documentation recommends using a Layout rather than Canvas.drawText directly. My full answer about using a StaticLayout is here, but I will provide a summary below.

String text = "This is some text.";

TextPaint textPaint = new TextPaint();
textPaint.setAntiAlias(true);
textPaint.setTextSize(16 * getResources().getDisplayMetrics().density);
textPaint.setColor(0xFF000000);

int width = (int) textPaint.measureText(text);
StaticLayout staticLayout = new StaticLayout(text, textPaint, (int) width, Layout.Alignment.ALIGN_NORMAL, 1.0f, 0, false);
staticLayout.draw(canvas);

Here is a fuller example in the context of a custom view:

public class MyView extends View {

    String mText = "This is some text.";
    TextPaint mTextPaint;
    StaticLayout mStaticLayout;

    // use this constructor if creating MyView programmatically
    public MyView(Context context) {
        super(context);
        initLabelView();
    }

    // this constructor is used when created from xml
    public MyView(Context context, AttributeSet attrs) {
        super(context, attrs);
        initLabelView();
    }

    private void initLabelView() {
        mTextPaint = new TextPaint();
        mTextPaint.setAntiAlias(true);
        mTextPaint.setTextSize(16 * getResources().getDisplayMetrics().density);
        mTextPaint.setColor(0xFF000000);

        // default to a single line of text
        int width = (int) mTextPaint.measureText(mText);
        mStaticLayout = new StaticLayout(mText, mTextPaint, (int) width, Layout.Alignment.ALIGN_NORMAL, 1.0f, 0, false);

        // New API alternate
        //
        // StaticLayout.Builder builder = StaticLayout.Builder.obtain(mText, 0, mText.length(), mTextPaint, width)
        //        .setAlignment(Layout.Alignment.ALIGN_NORMAL)
        //        .setLineSpacing(1, 0) // multiplier, add
        //        .setIncludePad(false);
        // mStaticLayout = builder.build();
    }

    @Override
    protected void onMeasure(int widthMeasureSpec, int heightMeasureSpec) {
        // Tell the parent layout how big this view would like to be
        // but still respect any requirements (measure specs) that are passed down.

        // determine the width
        int width;
        int widthMode = MeasureSpec.getMode(widthMeasureSpec);
        int widthRequirement = MeasureSpec.getSize(widthMeasureSpec);
        if (widthMode == MeasureSpec.EXACTLY) {
            width = widthRequirement;
        } else {
            width = mStaticLayout.getWidth() + getPaddingLeft() + getPaddingRight();
            if (widthMode == MeasureSpec.AT_MOST) {
                if (width > widthRequirement) {
                    width = widthRequirement;
                    // too long for a single line so relayout as multiline
                    mStaticLayout = new StaticLayout(mText, mTextPaint, width, Layout.Alignment.ALIGN_NORMAL, 1.0f, 0, false);
                }
            }
        }

        // determine the height
        int height;
        int heightMode = MeasureSpec.getMode(heightMeasureSpec);
        int heightRequirement = MeasureSpec.getSize(heightMeasureSpec);
        if (heightMode == MeasureSpec.EXACTLY) {
            height = heightRequirement;
        } else {
            height = mStaticLayout.getHeight() + getPaddingTop() + getPaddingBottom();
            if (heightMode == MeasureSpec.AT_MOST) {
                height = Math.min(height, heightRequirement);
            }
        }

        // Required call: set width and height
        setMeasuredDimension(width, height);
    }

    @Override
    protected void onDraw(Canvas canvas) {
        super.onDraw(canvas);
        // do as little as possible inside onDraw to improve performance

        // draw the text on the canvas after adjusting for padding
        canvas.save();
        canvas.translate(getPaddingLeft(), getPaddingTop());
        mStaticLayout.draw(canvas);
        canvas.restore();
    }
}

sed is a stream editor. It works with streams of characters on a per-line basis. It has a primitive programming language that includes goto-style loops and simple conditionals (in addition to pattern matching and address matching). There are essentially only two "variables": pattern space and hold space. Readability of scripts can be difficult. Mathematical operations are extraordinarily awkward at best.

There are various versions of sed with different levels of support for command line options and language features.

awk is oriented toward delimited fields on a per-line basis. It has much more robust programming constructs including if/else, while, do/while and for (C-style and array iteration). There is complete support for variables and single-dimension associative arrays plus (IMO) kludgey multi-dimension arrays. Mathematical operations resemble those in C. It has printf and functions. The "K" in "AWK" stands for "Kernighan" as in "Kernighan and Ritchie" of the book "C Programming Language" fame (not to forget Aho and Weinberger). One could conceivably write a detector of academic plagiarism using awk.

GNU awk (gawk) has numerous extensions, including true multidimensional arrays in the latest version. There are other variations of awk including mawk and nawk.

Both programs use regular expressions for selecting and processing text.

I would tend to use sed where there are patterns in the text. For example, you could replace all the negative numbers in some text that are in the form "minus-sign followed by a sequence of digits" (e.g. "-231.45") with the "accountant's brackets" form (e.g. "(231.45)") using this (which has room for improvement):

sed 's/-\([0-9.]\+\)/(\1)/g' inputfile

I would use awk when the text looks more like rows and columns or, as awk refers to them "records" and "fields". If I was going to do a similar operation as above, but only on the third field in a simple comma delimited file I might do something like:

awk -F, 'BEGIN {OFS = ","} {gsub("-([0-9.]+)", "(" substr($3, 2) ")", $3); print}' inputfile

Of course those are just very simple examples that don't illustrate the full range of capabilities that each has to offer.

Can try like this

var code = "<script></" + "script>";
$("#someElement").append(code);

The only reason you can't do "<script></script>" is because the string isn't allowed inside javascript because the DOM layer can't parse what's js and what's HTML.

Clearing the Cache of your React Native Project:

npm < 6.0 and RN < 0.50:

 watchman watch-del-all && rm -rf $TMPDIR/react-* &&
 rm -rf node_modules/ && npm cache clean && npm install && 
 npm start -- --reset-cache

npm >= 6.0 and RN >= 0.50:

 watchman watch-del-all && rm -rf $TMPDIR/react-native-packager-cache-* &&
 rm -rf $TMPDIR/metro-bundler-cache-* && rm -rf node_modules/ && npm cache clean --force &&
 npm install && npm start -- --reset-cache

try out this if you want to assign value to object and it is showing this error in angular..

crate object in construtor

this.modelObj = new Model(); //<---------- after declaring object above

Great then. Let's create a simple function that takes an array and prints our an ordered listview/list inside a div tag.

Step 1: Let's say you have an div with "contentSectionID" id.<div id="contentSectionID"></div>

Step 2: We then create our javascript function that returns a list component and takes in an array:

function createList(spacecrafts){

var listView=document.createElement('ol');

for(var i=0;i<spacecrafts.length;i++)
{
    var listViewItem=document.createElement('li');
    listViewItem.appendChild(document.createTextNode(spacecrafts[i]));
    listView.appendChild(listViewItem);
}

return listView;
}

Step 3: Finally we select our div and create a listview in it:

document.getElementById("contentSectionID").appendChild(createList(myArr));

A simpler solution would be to use sessionStorage, in this case:

var myVariable = "Hello World";

sessionStorage['myvariable'] = myVariable;

var readValue = sessionStorage['myvariable'];
console.log(readValue);

However, keep in mind that sessionStorage saves everything as a string, so when working with arrays / objects, you can use JSON to store them:

var myVariable = {a:[1,2,3,4], b:"some text"};

sessionStorage['myvariable'] = JSON.stringify(myVariable);
var readValue = JSON.parse(sessionStorage['myvariable']);

A page session lasts for as long as the browser is open and survives over page reloads and restores. Opening a page in a new tab or window will cause a new session to be initiated.

So, when you close the page / tab, the data is lost.

Based on Blorgbeard's solution.

foreach (var sqlBatch in commandText.Split(new[] { "GO" }, StringSplitOptions.RemoveEmptyEntries))
{
   sqlCommand.CommandText = sqlBatch;
   sqlCommand.ExecuteNonQuery();
}

Could you explain what exactly you try to accomplish? In general you NEVER have to get the onclick attribute from HTML elements. Also you should not specify the onclick on the element itself. Instead set the onclick dynamically using JQuery.

But as far as I understand you, you try to switch between two different onclick functions. What may be better is to implement your onclick function in such a way that it can handle both situations.

$("#google").click(function() {
    if (situation) {
        // ...
    } else {
        // ...
    }
});

Try

import sys
print(sys.version)

This prints the full version information string. If you only want the python version number, then Bastien Léonard's solution is the best. You might want to examine the full string and see if you need it or portions of it.

EDIT: I experimented some, and discovered thing are a bit subtler than I thought. Here's what I now think is an accurate answer.

&s is not an lvalue so you cannot create a reference to it unless the type of the reference is reference to const. So for example, you cannot do

string * &r = &s;

but you can do

string * const &r = &s;

If you put a similar declaration in the function header, it will work.

void myfunc(string * const &a) { ... }

There is another issue, namely, temporaries. The rule is that you can get a reference to a temporary only if it is const. So in this case one might argue that &s is a temporary, and so must be declared const in the function prototype. From a practical point of view it makes no difference in this case. (It's either an rvalue or a temporary. Either way, the same rule applies.) However, strictly speaking, I think it is not a temporary but an rvalue. I wonder if there is a way to distinguish between the two. (Perhaps it is simply defined that all temporaries are rvalues, and all non-lvalues are temporaries. I'm not an expert on the standard.)

That being said, your problem is probably at a higher level. Why do you want a reference to the address of s? If you want a reference to a pointer to s, you need to define a pointer as in

string *p = &s;
myfunc(p);

If you want a reference to s or a pointer to s, do the straightforward thing.

We dont need redux-persist we can simply use redux for persistance.

react-redux + AsyncStorage = redux-persist

so inside createsotre file simply add these lines

store.subscribe(async()=> await AsyncStorage.setItem("store", JSON.stringify(store.getState())))

this will update the AsyncStorage whenever there are some changes in the redux store.

Then load the json converted store. when ever the app loads. and set the store again.

Because redux-persist creates issues when using wix react-native-navigation. If that's the case then I prefer to use simple redux with above subscriber function

Copy servlet-api.jar from your tomcat server lib folder.

Paste it to WEB-INF > lib folder

Error was solved!!!

Now that PowerShell Core (aka v6) has been released, and people may want to write cross-platform scripts, many of the answers here will not work on anything other than Windows.

[Environment]::UserName appears to be the best way of getting the current username on all platforms supported by PowerShell Core if you don't want to add platform detection and special casing to your code.

I do not know "right" solution but I can suggest you a fast patch.

String.format("%16s", Integer.toBinaryString(1)).replace(" ", "0");

I have just tried it and saw that it works fine.

Note that if the user may be in multiple zones used in the query, you may probably want to add .distinct(). Otherwise you get one user multiple times:

users_in_zones = User.objects.filter(zones__in=[zone1, zone2, zone3]).distinct()

If you want to implement a singleton, that is a class that runs in your program with only one instance in memory throughout the execution of the application, then one of the ways to implement a singleton is to nest a private static class inside a public class. Then the inner private class only instantiates itself when its public method to access the private instance is called.

Check out this wiki article,

https://en.wikipedia.org/wiki/Singleton_pattern

The concept takes a while to chew on.

Simplicity :

var iframe = $("#myframe");
$(iframe.get(0).contentWindow).on("resize", function(){
    iframe.width(iframe.get(0).contentWindow.document.body.scrollWidth);
    iframe.height(iframe.get(0).contentWindow.document.body.scrollHeight);
});

I had the same issue in both VS 2010 and VS 2012. On my system the first static lib was built and then got immediately deleted when the main project started building.

The problem is the common intermediate folder for several projects. Just assign separate intermediate folder for each project.

Read more on this here

I solved this issue by redirecting the user to the FQDN of the server hosting the intranet.

IE probably uses the world's worst algorithm for detecting "intranet" sites ... indeed, specifying server.domain.tld solves the problem for me.

Yes, you read that correctly, IE detects intranet sites not by private IP address, like any dev who has heard of TCP/IP would do, no, by the "host" part of the URL, if it has no domain part, must be internal.

Scary to know the IE devs do not understand the most basic TCP/IP concepts.

Note that this was at a BIG enterprise customer, getting them to change GPO for you is like trying to move the Alps east by 4 meters, not gonna happen.

We need to specify the INITIAL_CONTEXT_FACTORY, PROVIDER_URL, USERNAME, PASSWORD etc. of JNDI to create an InitialContext.

In a standalone application, you can specify that as below

Hashtable env = new Hashtable();
env.put(Context.INITIAL_CONTEXT_FACTORY, 
    "com.sun.jndi.ldap.LdapCtxFactory");
env.put(Context.PROVIDER_URL, "ldap://ldap.wiz.com:389");
env.put(Context.SECURITY_PRINCIPAL, "joeuser");
env.put(Context.SECURITY_CREDENTIALS, "joepassword");

Context ctx = new InitialContext(env);

But if you are running your code in a Java EE container, these values will be fetched by the container and used to create an InitialContext as below

System.getProperty(Context.PROVIDER_URL);

and

these values will be set while starting the container as JVM arguments. So if you are running the code in a container, the following will work

InitialContext ctx = new InitialContext();

Your script could be stopping, not because of the PHP timeout but because of the timeout in the browser you're using to access the script (ie. Firefox, Chrome, etc). Unfortunately there's seldom an easy way to extend this timeout, and in most browsers you simply can't. An option you have here is to access the script over a terminal. For example, on Windows you would make sure the PHP executable is in your path variable and then I think you execute:

C:\path\to\script> php script.php

Or, if you're using the PHP CGI, I think it's:

C:\path\to\script> php-cgi script.php

Plus, you would also set ini_set('max_execution_time', 0); in your script as others have mentioned. When running a PHP script this way, I'm pretty sure you can use buffer flushing to echo out the script's progress to the terminal periodically if you wish. The biggest issue I think with this method is there's really no way of stopping the script once it's started, other than stopping the entire PHP process or service.

A quick extension method:

    public static void IfNotNull<T>(this T obj, Action<T> action, Action actionIfNull = null) where T : class {
        if(obj != null) {
            action(obj);
        } else if ( actionIfNull != null ) {
            actionIfNull();
        }
    }

example:

  string str = null;
  str.IfNotNull(s => Console.Write(s.Length));
  str.IfNotNull(s => Console.Write(s.Length), () => Console.Write("null"));

or alternatively:

    public static TR IfNotNull<T, TR>(this T obj, Func<T, TR> func, Func<TR> ifNull = null) where T : class {
        return obj != null ? func(obj) : (ifNull != null ? ifNull() : default(TR));
    }

example:

    string str = null;
    Console.Write(str.IfNotNull(s => s.Length.ToString());
    Console.Write(str.IfNotNull(s => s.Length.ToString(), () =>  "null"));

Async/Await with axios 

  useEffect(() => {     
    const getData = async () => {  
      await axios.get('your_url')  
      .then(res => {  
        console.log(res)  
      })  
      .catch(err => {  
        console.log(err)  
      });  
    }  
    getData()  
  }, [])

That's the easiest way to delete all rows from the table in dbms via DataAdapter. But if you want to do it in one batch, you can set the DataAdapter's UpdateBatchSize to 0(unlimited).

Another way would be to use a simple SqlCommand with CommandText DELETE FROM Table:

using(var con = new SqlConnection(ConfigurationSettings.AppSettings["con"]))
using(var cmd = new SqlCommand())
{
    cmd.CommandText = "DELETE FROM Table";
    cmd.Connection = con;
    con.Open();
    int numberDeleted = cmd.ExecuteNonQuery();  // all rows deleted
}

But if you instead only want to remove the DataRows from the DataTable, you just have to call DataTable.Clear. That would prevent any rows from being deleted in dbms.

It has to be a constant - the value has to be computable at the time that the procedure is created, and that one computation has to provide the value that will always be used.

Look at the definition of sys.all_parameters:

default_value sql_variant If has_default_value is 1, the value of this column is the value of the default for the parameter; otherwise, NULL.

That is, whatever the default for a parameter is, it has to fit in that column.

As Alex K pointed out in the comments, you can just do:

CREATE PROCEDURE [dbo].[problemParam] 
    @StartDate INT = NULL,
    @EndDate INT = NULL
AS  
BEGIN
   SET @StartDate = COALESCE(@StartDate,CONVERT(INT,(CONVERT(CHAR(8),GETDATE()-130,112))))

provided that NULL isn't intended to be a valid value for @StartDate.

As to the blog post you linked to in the comments - that's talking about a very specific context - that, the result of evaluating GETDATE() within the context of a single query is often considered to be constant. I don't know of many people (unlike the blog author) who would consider a separate expression inside a UDF to be part of the same query as the query that calls the UDF.

iOS 5 has added some new appearance methods for customising the look of most UI elements.

You can target every instance of a UITabBar in your app by using the appearance proxy.

For iOS 5 + 6:

[[UITabBar appearance] setTintColor:[UIColor redColor]];

For iOS 7 and above, please use the following:

[[UITabBar appearance] setBarTintColor:[UIColor redColor]];

Using the appearance proxy will change any tab bar instance throughout the app. For a specific instance, use one of the new properties on that class:

UIColor *tintColor; // iOS 5+6
UIColor *barTintColor; // iOS 7+
UIColor *selectedImageTintColor;
UIImage *backgroundImage;
UIImage *selectionIndicatorImage;

For completeness along with the other answers:

yourstring = "L%sLL" % yourstring

Or, more forward compatible with Python 3.x:

yourstring = "L{0}LL".format(yourstring)

svn log --verbose -r 42

From the Mongo docs:

The $not operator only affects other operators and cannot check fields and documents independently. So, use the $not operator for logical disjunctions and the $ne operator to test the contents of fields directly.

Since you are testing the field directly $ne is the right operator to use here.

Edit:

A situation where you would like to use $not is:

db.inventory.find( { price: { $not: { $gt: 1.99 } } } )

That would select all documents where:

• The price field value is less than or equal to 1.99 or the price
• Field does not exist

There's a difference between an empty string "" and an undefined variable. You should be checking whether or not theHref contains a defined string, rather than its lenght:

if(theHref){
   // ---
}

If you still want to check for the length, then do this:

if(theHref && theHref.length){
   // ...
}

Here is the SWIFT extension to get your current device location time (GMT).

func getGMTTimeDate() -> Date {
   var comp: DateComponents = Calendar.current.dateComponents([.year, .month, .day, .hour, .minute], from: self)
   comp.calendar = Calendar.current
   comp.timeZone = TimeZone(abbreviation: "GMT")!
   return Calendar.current.date(from: comp)!
}

Get now time:-

Date().getGMTTimeDate()

In Matlab I did something similar using the delaunay function on the x, y coords only (not the z), then plotting with trimesh or trisurf, using z as the height.

SciPy has the Delaunay class, which is based on the same underlying QHull library that the Matlab's delaunay function is, so you should get identical results.

From there, it should be a few lines of code to convert this Plotting 3D Polygons in python-matplotlib example into what you wish to achieve, as Delaunay gives you the specification of each triangular polygon.

The problem could occur when $templateCacheProvider is trying to resolve a template in the templateCache or through your project directory that does not exist

Example:

templateUrl: 'views/wrongPathToTemplate'

Should be:

templateUrl: 'views/home.html'

There is an important bit that is not mentioned in the article to which you linked and that is flex-basis. By default flex-basis is auto.

From the spec:

If the specified flex-basis is auto, the used flex basis is the value of the flex item’s main size property. (This can itself be the keyword auto, which sizes the flex item based on its contents.)

Each flex item has a flex-basis which is sort of like its initial size. Then from there, any remaining free space is distributed proportionally (based on flex-grow) among the items. With auto, that basis is the contents size (or defined size with width, etc.). As a result, items with bigger text within are being given more space overall in your example.

If you want your elements to be completely even, you can set flex-basis: 0. This will set the flex basis to 0 and then any remaining space (which will be all space since all basises are 0) will be proportionally distributed based on flex-grow.

li {
    flex-grow: 1;
    flex-basis: 0;
    /* ... */
}

This diagram from the spec does a pretty good job of illustrating the point.

And here is a working example with your fiddle.

Reserved.objects.filter(client=client_id).order_by('-check_in')

A hyphen "-" in front of "check_in" indicates descending order. Ascending order is implied.

We don't have to add an all() before filter(). That would still work, but you only need to add all() when you want all objects from the root QuerySet.

More on this here: https://docs.djangoproject.com/en/dev/topics/db/queries/#retrieving-specific-objects-with-filters

Add this function to your ~/.bashrc and restart your terminal or run source ~/.bashrc

function lock() {
    gnome-screensaver
    gnome-screensaver-command --lock
}

This way these two commands will run whenever you enter lock in your terminal.

In your specific case creating an alias may work, but I don't recommend it. Intuitively we would think the value of an alias would run the same as if you entered the value in the terminal. However that's not the case:

The rules concerning the definition and use of aliases are somewhat confusing.

and

For almost every purpose, shell functions are preferred over aliases.

So don't use an alias unless you have to. https://ss64.com/bash/alias.html

The other answer is very detailed and addresses the bulk of the questions raised by the OP.

To elaborate, and specifically to address the OP's question of "How does OAuth 2 protect against things like replay attacks using the Security Token?", there are two additional protections in the official recommendations for implementing OAuth 2:

1) Tokens will usually have a short expiration period (http://tools.ietf.org/html/rfc6819#section-5.1.5.3):

A short expiration time for tokens is a means of protection against the following threats:

• replay...

2) When the token is used by Site A, the recommendation is that it will be presented not as URL parameters but in the Authorization request header field (http://tools.ietf.org/html/rfc6750):

Clients SHOULD make authenticated requests with a bearer token using the "Authorization" request header field with the "Bearer" HTTP authorization scheme. ...

The "application/x-www-form-urlencoded" method SHOULD NOT be used except in application contexts where participating browsers do not have access to the "Authorization" request header field. ...

URI Query Parameter... is included to document current use; its use is not recommended, due to its security deficiencies

It's the ternary or conditional operator. It's basic form is:

condition ? valueIfTrue : valueIfFalse

Where the values will only be evaluated if they are chosen.

Using moment.js as you asked, there is a unix method that accepts unix timestamps in seconds:

var dateString = moment.unix(value).format("MM/DD/YYYY");

I have a better solution for this problem,

• request is a member of abstract class ControllerBase
• GetSearchParams() is an extension method created in bellow helper class.

var searchparams = await Request.GetSearchParams();

I have created a static class with few extension methods

public static class HttpRequestExtension
{
  public static async Task<SearchParams> GetSearchParams(this HttpRequest request)
        {
            var parameters = await request.TupledParameters();

            try
            {
                for (var i = 0; i < parameters.Count; i++)
                {
                    if (parameters[i].Item1 == "_count" && parameters[i].Item2 == "0")
                    {
                        parameters[i] = new Tuple<string, string>("_summary", "count");
                    }
                }
                var searchCommand = SearchParams.FromUriParamList(parameters);
                return searchCommand;
            }
            catch (FormatException formatException)
            {
                throw new FhirException(formatException.Message, OperationOutcome.IssueType.Invalid, OperationOutcome.IssueSeverity.Fatal, HttpStatusCode.BadRequest);
            }
        }



public static async Task<List<Tuple<string, string>>> TupledParameters(this HttpRequest request)
{
        var list = new List<Tuple<string, string>>();


        var query = request.Query;
        foreach (var pair in query)
        {
            list.Add(new Tuple<string, string>(pair.Key, pair.Value));
        }

        if (!request.HasFormContentType)
        {
            return list;
        }
        var getContent = await request.ReadFormAsync();

        if (getContent == null)
        {
            return list;
        }
        foreach (var key in getContent.Keys)
        {
            if (!getContent.TryGetValue(key, out StringValues values))
            {
                continue;
            }
            foreach (var value in values)
            {
                list.Add(new Tuple<string, string>(key, value));
            }
        }
        return list;
    }
}

in this way you can easily access all your search parameters. I hope this will help many developers :)

Short answer - no.

You will only be charged for the time that your instance is up and running, in hour increments. If you are using other services in conjunction you may be charged for those but it would be separate from your server instance.

The way to use the ellipsis or varargs inside the method is as if it were an array:

public void PrintWithEllipsis(String...setOfStrings) {
    for (String s : setOfStrings)
        System.out.println(s);
}

This method can be called as following:

obj.PrintWithEllipsis(); // prints nothing
obj.PrintWithEllipsis("first"); // prints "first"
obj.PrintWithEllipsis("first", "second"); // prints "first\nsecond"

Inside PrintWithEllipsis, the type of setOfStrings is an array of String. So you could save the compiler some work and pass an array:

String[] argsVar = {"first", "second"};
obj.PrintWithEllipsis(argsVar);

For varargs methods, a sequence parameter is treated as being an array of the same type. So if two signatures differ only in that one declares a sequence and the other an array, as in this example:

void process(String[] s){}
void process(String...s){}

then a compile-time error occurs.

Source: The Java Programming Language specification, where the technical term is variable arity parameter rather than the common term varargs.

This did it for me simply and perfectly.

Excellent explanation by Scott Robinson

From image to base64 string

let buff = fs.readFileSync('stack-abuse-logo.png');
let base64data = buff.toString('base64');

From base64 string to image

let buff = new Buffer(data, 'base64');
fs.writeFileSync('stack-abuse-logo-out.png', buff);

In Javascript I would use /.*_/, meaning: match everything until _ (including)

Example:

console.log( 'hello_world'.replace(/.*_/,'') ) // 'world'

Another thing that can give you hell with JQuery Dialog positioning, especially for documents larger than the browser view port - you must add the declaration

<!DOCTYPE html>

At the top of your document.

Without it, jquery tends to put the dialog on the bottom of the page and errors may occur when trying to drag it.

Follow the steps mentioned for using support ActionBar in Android Studio(0.4.2) :

Download the Android Support Repository from Android SDK Manager, SDK Manager icon will be available on Android Studio tool bar (or Tools -> Android -> SDK Manager).

After download you will find your Support repository here

$SDK_DIR\extras\android\m2repository\com\android\support\appcompat-v7

Open your main module's build.gradle file and add following dependency for using action bar in lower API level

dependencies {
    compile 'com.android.support:appcompat-v7:+'
}

Sync your project with gradle using the tiny Gradle icon available in toolbar (or Tools -> Android -> Sync Project With Gradle Files).

There is some issue going on with Android Studio 0.4.2 so check this as well if you face any issue while importing classes in code.

Import Google Play Services library in Android Studio

If Required follow the steps as well :

• Exit Android Studio
• Delete all the .iml files and files inside .idea folder from your project
• Relaunch Android Studio and wait till the project synced completely with gradle. If it shows an error in Event Log with import option click on Import Project.

This is bug in Android Studio 0.4.2 and fixed for Android Studio 0.4.3 release.

Add one unique session or cookie in button click event then redirect page on same URL using Request.RawUrl Now add code in Page_Load event to grab that session or coockie. If session/cookie matches then you can knows that page redirected using refresh button. So decrease hit counter by 1 to keep it on same number do hitcountr -= hitconter

Else increase the hit counter.

The first methods seem to work in the browsers that I tested, but the option tags doesn't really correspond to actual elements in all browsers, so the result may vary.

Just use the selectedIndex property of the DOM element:

alert($("#dropDownMenuKategorie")[0].selectedIndex);

Update:

Since version 1.6 jQuery has the prop method that can be used to read properties:

alert($("#dropDownMenuKategorie").prop('selectedIndex'));

I just ran into this problem while trying to use pprint to output a list of tuples of floats. Nested comprehensions might be a bad idea, but here's what I did:

tups = [
        (12.0, 9.75, 23.54),
        (12.5, 2.6, 13.85),
        (14.77, 3.56, 23.23),
        (12.0, 5.5, 23.5)
       ]
pprint([['{0:0.02f}'.format(num) for num in tup] for tup in tups])

I used generator expressions at first, but pprint just repred the generator...

You can set the headers in PHP by using:

<?php
  //set headers to NOT cache a page
  header("Cache-Control: no-cache, must-revalidate"); //HTTP 1.1
  header("Pragma: no-cache"); //HTTP 1.0
  header("Expires: Sat, 26 Jul 1997 05:00:00 GMT"); // Date in the past

  //or, if you DO want a file to cache, use:
  header("Cache-Control: max-age=2592000"); //30days (60sec * 60min * 24hours * 30days)

?>

Note that the exact headers used will depend on your needs (and if you need to support HTTP 1.0 and/or HTTP 1.1)

Update: 04/2018: Note that Vincenty distance is deprecated since GeoPy version 1.13 - you should use geopy.distance.distance() instead!

The answers above are based on the Haversine formula, which assumes the earth is a sphere, which results in errors of up to about 0.5% (according to help(geopy.distance)). Vincenty distance uses more accurate ellipsoidal models such as WGS-84, and is implemented in geopy. For example,

import geopy.distance

coords_1 = (52.2296756, 21.0122287)
coords_2 = (52.406374, 16.9251681)

print geopy.distance.vincenty(coords_1, coords_2).km

will print the distance of 279.352901604 kilometers using the default ellipsoid WGS-84. (You can also choose .miles or one of several other distance units).

This one worked for me on Chrome... for some reason event.which returns a capital S (83) for me, not sure why (regardless of the caps lock state) so I used fromCharCode and toLowerCase just to be on the safe side

$(document).keydown(function(event) {

    //19 for Mac Command+S
    if (!( String.fromCharCode(event.which).toLowerCase() == 's' && event.ctrlKey) && !(event.which == 19)) return true;

    alert("Ctrl-s pressed");

    event.preventDefault();
    return false;
});

If anyone knows why I get 83 and not 115, I will be happy to hear, also if anyone tests this on other browsers I'll be happy to hear if it works or not

You still need to set callback in the params:

var params = {
  'a': b,
  'token_auth': TOKEN,
  'callback': 'functionName'
};
$sce.trustAsResourceUrl(url);

$http.jsonp(url, {
  params: params
});

Where 'functionName' is a stringified reference to globally defined function. You can define it outside of your angular script and then redefine it in your module.

For those who are with QT Creator, the issue is same (as described by @c-johnson). Make sure the compiler settings for MSVC in your kit is set to x86 as shown below.

You should use the ClearContents method if you want to clear the content but preserve the formatting.

Worksheets("Sheet1").Range("A1:G37").ClearContents

while [ -n $(passwd) ]; do
        echo "Try again";
done;

SessionState

• Can be persisted in memory, which makes it a fast solution. Which means state cannot be shared in the Web Farm/Web Garden.
• Can be persisted in a Database, useful for Web Farms / Web Gardens.
• Is Cleared when the session dies - usually after 20min of inactivity.

ViewState

• Is sent back and forth between the server and client, taking up bandwidth.
• Has no expiration date.
• Is useful in a Web Farm / Web Garden

If you are using an external style sheet, the code could look something like this:

@font-face { font-family: Junebug; src: url('Junebug.ttf'); } 
.junebug { font-family: Junebug; font-size: 4.2em; }

And should be saved in a separate .css file (eg styles.css). If your .css file is in a location separate from the page code, the actual font file should have the same path as the .css file, NOT the .html or .php web page file. Then the web page needs something like:

<link rel="stylesheet" href="css/styles.css">

in the <head> section of your html page. In this example, the font file should be located in the css folder along with the stylesheet. After this, simply add the class="junebug" inside any tag in your html to use Junebug font in that element.

If you're putting the css in the actual web page, add the style tag in the head of the html like:

<style>
    @font-face { font-family: Junebug; src: url('Junebug.ttf'); } 
</style>

And the actual element style can either be included in the above <style> and called per element by class or id, or you can just declare the style inline with the element. By element I mean <div>, <p>, <h1> or any other element within the html that needs to use the Junebug font. With both of these options, the font file (Junebug.ttf) should be located in the same path as the html page. Of these two options, the best practice would look like:

<style>
    @font-face { font-family: Junebug; src: url('Junebug.ttf'); } 
    .junebug { font-family: Junebug; font-size: 4.2em; }
</style>

and

<h1 class="junebug">This is Junebug</h1>

And the least acceptable way would be:

<style>
    @font-face { font-family: Junebug; src: url('Junebug.ttf'); } 
</style>

and

<h1 style="font-family: Junebug;">This is Junebug</h1>

The reason it's not good to use inline styles is best practice dictates that styles should be kept all in one place so editing is practical. This is also the main reason that I recommend using the very first option of using external style sheets. I hope this helps.

Ok, here is my way.

osis()
{
    local n=0
    if [[ "$1" = "-n" ]]; then n=1;shift; fi

    # echo $OS|grep $1 -i >/dev/null
    uname -s |grep -i "$1" >/dev/null

    return $(( $n ^ $? ))
}

e.g.

osis Darwin &&
{
    log_debug Detect mac osx
}
osis Linux &&
{
    log_debug Detect linux
}
osis -n Cygwin &&
{
    log_debug Not Cygwin
}

I use this in my dotfiles

Still not sure the answer, but a possible workaround is

import * as Chart from 'chart.js';

I wish I had an answer but I only have Part of one. And I cannot take credit for it but the way to get it is below.
This is a more serious issue than it is being given credit for from the sound of the replies. Everyone is automatically assuming that the content that needs protection is for public consumption. This is not always the case. Sometimes there are legal or contractual reasons that require the site owner to take all possible measures to prevent downloading the file. The most obvious one I can think of has already brought up. The “Action Option Bar” presented by the browser to on almost any file you can left click.
Adobe DRM does nothing about that and worse, Adobe Acrobat cannot even have its own abilities to “Save” blocked as part of the “DRM” protection. This option comes up even in Reader no matter what other security selections you have chosen.

In our case, Adobe Acrobat was purchased solely to provide some degree of protection for their own format. It is hard to believe that Adobe will let you prevent printing, prevent editing, prevent even opening without a password or you can really go all out and use a certificate for your encryption. Yet they have no options to prevent saving at any point, anywhere. Instead offering the consolation of telling you “Don’t worry: The copy they download without your permission will also have the same DRM on it as well”. Unfortunately that was not the sole purpose of the purchase and half a solution is no “solution” at all. There are probably 100 programs that are actually sold just to remove the DRM from Adobe documents and even if not, the point was that the client specified that no downloads be allowed even by users who had access to the private site. Therefore the need to prevent the download to start with is not so hard to understand. While conversion to FLASH may give you the download protection, you lose all the rest. Unless I can find a way to prevent opening, saving etc for a Flash File. Next, is it possible to password protect a Flash file from opening when clicked on?

The “partial fix” that I was finally able to get to work as needed still only disables all the “right click” functions but it does include a nice “Warning Box” where I can explain that the User has already agreed NOT to download, print, save and so on just to have access to the page. I am not sure if I could post the code here or whether it is acceptable to paste links either but a Google search for "Maximus right click" will take you to it. And it was one of several examples, it just happened to be the one I could implement the easiest and worked better than the others. Credit where credit is due.

Another option I was given by someone was a product called “Flipping Book”. And the user above suggestions for “Atalasoft” ( I had already found that and have sent a request for more information). Hopefully it will be “The Solution” and I can implement it in time to help. It seems to me that this is a place where there is an obvious need for a one-step packaged solution and usually "The Laws of Nature" take care of such an Imbalance in short order. Yet my research has taken me through many years of posters all asking for the same thing. Looks like someone would be able to make a nice living off a “simple” way to add a little more "protection" to “PDFs” (or other documents, images etc) for the people who obviously are in need of it. If I find it, and it works, I'm buying it. :>)

I wish I had skills as a programmer because I have some pretty good ideas of ways to implement such a product, unfortunately, I do not know how to put these ideas into practical use.

Just in case if anyone is interested in labeling horizontal barplot graph, I modified Sharon's answer as below:

def show_values_on_bars(axs, h_v="v", space=0.4):
    def _show_on_single_plot(ax):
        if h_v == "v":
            for p in ax.patches:
                _x = p.get_x() + p.get_width() / 2
                _y = p.get_y() + p.get_height()
                value = int(p.get_height())
                ax.text(_x, _y, value, ha="center") 
        elif h_v == "h":
            for p in ax.patches:
                _x = p.get_x() + p.get_width() + float(space)
                _y = p.get_y() + p.get_height()
                value = int(p.get_width())
                ax.text(_x, _y, value, ha="left")

    if isinstance(axs, np.ndarray):
        for idx, ax in np.ndenumerate(axs):
            _show_on_single_plot(ax)
    else:
        _show_on_single_plot(axs)

Two parameters explained:

h_v - Whether the barplot is horizontal or vertical. "h" represents the horizontal barplot, "v" represents the vertical barplot.

space - The space between value text and the top edge of the bar. Only works for horizontal mode.

Example:

show_values_on_bars(sns_t, "h", 0.3)

I am using the code listed below to handle null cells in an Excel sheet that is read in to a datatable.

if (!reader.IsDBNull(2))
{
   row["Oracle"] = (string)reader[2];
}

a = "A long string with a . in the middle ending with ."

# if you want to find the index of the last occurrence of any string, In our case we #will find the index of the last occurrence of with

index = a.rfind("with") 

# the result will be 44, as index starts from 0.

If you need to cast your json object to a typescript class and have its instance methods available in the resulting object you need to use Object.setPrototypeOf, like I did in the code snippet bellow:

Object.setPrototypeOf(jsonObject, YourTypescriptClass.prototype)

 string input = "Hello 20, I am 30 and he is 40";
 var numbers = Regex.Matches(input, @"\d+").OfType<Match>().Select(m => int.Parse(m.Value)).ToArray();

To pass some context data to javascript code, you have to serialize it in a way it will be "understood" by javascript (namely JSON). You also need to mark it as safe using the safe Jinja filter, to prevent your data from being htmlescaped.

You can achieve this by doing something like that:

The view

import json

@app.route('/')
def my_view():
    data = [1, 'foo']
    return render_template('index.html', data=json.dumps(data))

The template

<script type="text/javascript">
    function test_func(data) {
        console.log(data);
    }
    test_func({{ data|safe }})
</script>

Edit - exact answer

So, to achieve exactly what you want (loop over a list of items, and pass them to a javascript function), you'd need to serialize every item in your list separately. Your code would then look like this:

The view

import json

@app.route('/')
def my_view():
    data = [1, "foo"]
    return render_template('index.html', data=map(json.dumps, data))

The template

{% for item in data %}
    <span onclick=someFunction({{ item|safe }});>{{ item }}</span>
{% endfor %}

Edit 2

In my example, I use Flask, I don't know what framework you're using, but you got the idea, you just have to make it fit the framework you use.

Edit 3 (Security warning)

NEVER EVER DO THIS WITH USER-SUPPLIED DATA, ONLY DO THIS WITH TRUSTED DATA!

Otherwise, you would expose your application to XSS vulnerabilities!

I would recommend you to save the image in the server, and then save the URL in MYSQL database.

First of all, you should do more validation on your image, before non-validated files can lead to huge security risks.

1. Check the image

   if (empty($_FILES['image']))
     throw new Exception('Image file is missing');
   

2. Save the image in a variable

   $image = $_FILES['image'];
   

3. Check the upload time errors

   if ($image['error'] !== 0) {
      if ($image['error'] === 1) 
         throw new Exception('Max upload size exceeded');
   
      throw new Exception('Image uploading error: INI Error');
   }
   

4. Check whether the uploaded file exists in the server

   if (!file_exists($image['tmp_name']))
       throw new Exception('Image file is missing in the server');
   

5. Validate the file size (Change it according to your needs)

    $maxFileSize = 2 * 10e6; // = 2 000 000 bytes = 2MB
       if ($image['size'] > $maxFileSize)
           throw new Exception('Max size limit exceeded'); 
   

6. Validate the image (Check whether the file is an image)

    $imageData = getimagesize($image['tmp_name']);
        if (!$imageData) 
        throw new Exception('Invalid image');
   

7. Validate the image mime type (Do this according to your needs)

    $mimeType = $imageData['mime'];
    $allowedMimeTypes = ['image/jpeg', 'image/png', 'image/gif'];
    if (!in_array($mimeType, $allowedMimeTypes)) 
       throw new Exception('Only JPEG, PNG and GIFs are allowed');
   

This might help you to create a secure image uploading script with PHP.

Code source: https://developer.hyvor.com/php/image-upload-ajax-php-mysql

Additionally, I suggest you use MYSQLI prepared statements for queries to improve security.

Thank you.

For functional components with hooks

const [searches, setSearches] = useState([]);

// Using .concat(), no wrapper function (not recommended)
setSearches(searches.concat(query));

// Using .concat(), wrapper function (recommended)
setSearches(searches => searches.concat(query));

// Spread operator, no wrapper function (not recommended)
setSearches([...searches, query]);

// Spread operator, wrapper function (recommended)
setSearches(searches => [...searches, query]);

source: https://medium.com/javascript-in-plain-english/how-to-add-to-an-array-in-react-state-3d08ddb2e1dc

After fixing a performance issue related to the use of .is(":visible"), I would recommend against the above answers and instead use jQuery's code for deciding whether a single element is visible:

$.expr.filters.visible($("#singleElementID")[0]);

What .is does is check whether a set of elements is within another set of elements. So you will looking for your element within the entire set of visible elements on your page. Having 100 elements is pretty normal and might take a few milliseconds to search through the array of visible elements. If you're building a web app you probably have hundreds or possibly thousands. Our app was sometimes taking 100ms for $("#selector").is(":visible") since it was checking if an element was in an array of 5000 other elements.

About your command line:

root@debian:/# sudo iptables -A INPUT -p tcp --dport 3306 --jump ACCEPT
root@debian:/# iptables-save

• You are already authenticated as root so sudo is redundant there.

• You are missing the -j or --jump just before the ACCEPT parameter (just tought that was a typo and you are inserting it correctly).

About yout question:

If you are inserting the iptables rule correctly as you pointed it in the question, maybe the issue is related to the hypervisor (virtual machine provider) you are using.

If you provide the hypervisor name (VirtualBox, VMWare?) I can further guide you on this but here are some suggestions you can try first:

check your vmachine network settings and:

• if it is set to NAT, then you won't be able to connect from your base machine to the vmachine.

• if it is set to Hosted, you have to configure first its network settings, it is usually to provide them an IP in the range 192.168.56.0/24, since is the default the hypervisors use for this.

• if it is set to Bridge, same as Hosted but you can configure it whenever IP range makes sense for you configuration.

Hope this helps.

The !important rule is a way to make your CSS cascade but also have the rules you feel are most crucial always be applied. A rule that has the !important property will always be applied no matter where that rule appears in the CSS document.

So, if you have the following:

.class {
   color: red !important;
}
.outerClass .class {
   color: blue;
}

the rule with the important will be the one applied (not counting specificity)

I believe !important appeared in CSS1 so every browser supports it (IE4 to IE6 with a partial implementation, IE7+ full)

Also, it's something that you don't want to use pretty often, because if you're working with other people you can override other properties.

You can split the string with no separator arg, which will treat consecutive whitespace as a single separator (including newlines and tabs). Then join using a space:

In : " ".join("\n\nsome    text \r\n with multiple whitespace".split())
Out: 'some text with multiple whitespace'

https://docs.python.org/2/library/stdtypes.html#str.split

In Python, lambda is a keyword used to define anonymous functions(functions with no name) and that's why they are known as lambda functions.

Basically it is used for defining anonymous functions that can/can't take argument(s) and returns value of data/expression. Let's see an example.

>>> # Defining a lambda function that takes 2 parameters(as integer) and returns their sum
... 
>>> lambda num1, num2: num1 + num2 
<function <lambda> at 0x1004b5de8>
>>> 
>>> # Let's store the returned value in variable & call it(1st way to call)
... 
>>> addition = lambda num1, num2: num1 + num2
>>> addition(62, 5)
67
>>> addition(1700, 29)
1729
>>> 
>>> # Let's call it in other way(2nd way to call, one line call )
... 
>>> (lambda num1, num2: num1 + num2)(120, 1)
121
>>> (lambda num1, num2: num1 + num2)(-68, 2)
-66
>>> (lambda num1, num2: num1 + num2)(-68, 2**3)
-60
>>> 

Now let me give an answer of your 2nd question. The 1st answer is also great. This is my own way to explain with another example.

Suppose we have a list of items(integers and strings with numeric contents) as follows,

nums = ["2", 1, 3, 4, "5", "8", "-1", "-10"]

and I want to sort it using sorted() function, lets see what happens.

>>> nums = ["2", 1, 3, 4, "5", "8", "-1", "-10"]
>>> sorted(nums)
[1, 3, 4, '-1', '-10', '2', '5', '8']
>>>

It didn't give me what I expected as I wanted like below,

['-10', '-1', 1, '2', 3, 4, '5', '8']

It means we need some strategy(so that sorted could treat our string items as an ints) to achieve this. This is why the key keyword argument is used. Please look at the below one.

>>> nums = ["2", 1, 3, 4, "5", "8", "-1", "-10"]
>>> sorted(nums, key=int)
['-10', '-1', 1, '2', 3, 4, '5', '8']
>>> 

Lets use lambda function as a value of key

>>> names = ["Rishikesh", "aman", "Ajay", "Hemkesh", "sandeep", "Darshan", "Virendra", "Shwetabh"]
>>> names2 = sorted(names)
>>> names2
['Ajay', 'Darshan', 'Hemkesh', 'Rishikesh', 'Shwetabh', 'Virendra', 'aman', 'sandeep']
>>> # But I don't want this o/p(here our intention is to treat 'a' same as 'A')
...
>>> names3 = sorted(names, key=lambda name:name.lower())
>>> names3
['Ajay', 'aman', 'Darshan', 'Hemkesh', 'Rishikesh', 'sandeep', 'Shwetabh', 'Virendra']
>>>

You can define your own function(callable) and provide it as value of key.

Dear programers, I have written the below code for you, just try to understand it and comment your explanation. I would be glad to see your explanation(it's simple).

>>> def validator(item):
...     try:
...         return int(item)
...     except:
...         return 0
... 
>>> sorted(['gurmit', "0", 5, 2, 1, "front", -2, "great"], key=validator)
[-2, 'gurmit', '0', 'front', 'great', 1, 2, 5]
>>>

I hope it would be useful.

Read only singletons storing some global state (user language, help filepath, application path) are reasonable. Be carefull of using singletons to control business logic - single almost always ends up being multiple

Text nodes cannot have margins or any other style applied to them, so anything you need style applied to must be in an element. If you want some of the text inside of your element to be styled differently, wrap it in a span or div, for example.

It is worth pointing out that on Safari on the iPhone, at least, inserting basic HTML tags such as <b>, <i>, and <img> (which ideally you shouldn't use in other circumstances anymore anyway, preferring CSS) into the body parameter in the mailto: does appear to work - they are honored within the email client. I haven't done exhaustive testing to see if this is supported by other mobile or desktop browser/email client combos. It's also dubious whether this is really standards-compliant. Might be useful if you are building for that platform, though.

As other responses have noted, you should also use encodeURIComponent on the entire body before embedding it in the mailto: link.

A better way in long run is to integrate Gradle in your project environment. Its a build tool for Java, and now being used a lot in the android development space.

You will need to make a .gradle file and list your library dependencies. Then, all you would need to do is import the project in IntelliJ using Gradle.

Cheers

Use Guava's listenable future API and add a callback. Cf. from the website :

ListeningExecutorService service = MoreExecutors.listeningDecorator(Executors.newFixedThreadPool(10));
ListenableFuture<Explosion> explosion = service.submit(new Callable<Explosion>() {
  public Explosion call() {
    return pushBigRedButton();
  }
});
Futures.addCallback(explosion, new FutureCallback<Explosion>() {
  // we want this handler to run immediately after we push the big red button!
  public void onSuccess(Explosion explosion) {
    walkAwayFrom(explosion);
  }
  public void onFailure(Throwable thrown) {
    battleArchNemesis(); // escaped the explosion!
  }
});

A great resource is iosfonts.com, which says that the name for that font is HelveticaNeue-UltraLight. So you'd use this code:

label.font = UIFont(name: "HelveticaNeue-UltraLight", size: 30)

If the system can't find the font, it defaults to a 'normal' font - I think it's something like 11-point Helvetica. This can be quite confusing, always check your font names.

I recommend adding the following line after the export to PDF:

ThisWorkbook.Sheets("Sheet1").Select

(where eg. Sheet1 is the single sheet you want to be active afterwards)

Leaving multiple sheets in a selected state may cause problems executing some code. (eg. unprotect doesn't function properly when multiple sheets are actively selected.)

I think the issue is here:

<template id="newtemp" :name ="{{user.name}}">

When you prefix the prop with : you are indicating to Vue that it is a variable, not a string. So you don't need the {{}} around user.name. Try:

<template id="newtemp" :name ="user.name">

EDIT-----

The above is true, but the bigger issue here is that when you change the URL and go to a new route, the original component disappears. In order to have the second component edit the parent data, the second component would need to be a child component of the first one, or just a part of the same component.

If you read the performance and benchmark stats on this website, you'll see that the fastest way to read (because reading, writing, and processing are all different) a text file is the following snippet of code:

using (StreamReader sr = File.OpenText(fileName))
{
    string s = String.Empty;
    while ((s = sr.ReadLine()) != null)
    {
        //do your stuff here
    }
}

All up about 9 different methods were bench marked, but that one seem to come out ahead the majority of the time, even out performing the buffered reader as other readers have mentioned.

Spark >= 2.3.0

SPARK-22614 exposes range partitioning.

val partitionedByRange = df.repartitionByRange(42, $"k")

partitionedByRange.explain
// == Parsed Logical Plan ==
// 'RepartitionByExpression ['k ASC NULLS FIRST], 42
// +- AnalysisBarrier Project [_1#2 AS k#5, _2#3 AS v#6]
// 
// == Analyzed Logical Plan ==
// k: string, v: int
// RepartitionByExpression [k#5 ASC NULLS FIRST], 42
// +- Project [_1#2 AS k#5, _2#3 AS v#6]
//    +- LocalRelation [_1#2, _2#3]
// 
// == Optimized Logical Plan ==
// RepartitionByExpression [k#5 ASC NULLS FIRST], 42
// +- LocalRelation [k#5, v#6]
// 
// == Physical Plan ==
// Exchange rangepartitioning(k#5 ASC NULLS FIRST, 42)
// +- LocalTableScan [k#5, v#6]

SPARK-22389 exposes external format partitioning in the Data Source API v2.

Spark >= 1.6.0

In Spark >= 1.6 it is possible to use partitioning by column for query and caching. See: SPARK-11410 and SPARK-4849 using repartition method:

val df = Seq(
  ("A", 1), ("B", 2), ("A", 3), ("C", 1)
).toDF("k", "v")

val partitioned = df.repartition($"k")
partitioned.explain

// scala> df.repartition($"k").explain(true)
// == Parsed Logical Plan ==
// 'RepartitionByExpression ['k], None
// +- Project [_1#5 AS k#7,_2#6 AS v#8]
//    +- LogicalRDD [_1#5,_2#6], MapPartitionsRDD[3] at rddToDataFrameHolder at <console>:27
// 
// == Analyzed Logical Plan ==
// k: string, v: int
// RepartitionByExpression [k#7], None
// +- Project [_1#5 AS k#7,_2#6 AS v#8]
//    +- LogicalRDD [_1#5,_2#6], MapPartitionsRDD[3] at rddToDataFrameHolder at <console>:27
// 
// == Optimized Logical Plan ==
// RepartitionByExpression [k#7], None
// +- Project [_1#5 AS k#7,_2#6 AS v#8]
//    +- LogicalRDD [_1#5,_2#6], MapPartitionsRDD[3] at rddToDataFrameHolder at <console>:27
// 
// == Physical Plan ==
// TungstenExchange hashpartitioning(k#7,200), None
// +- Project [_1#5 AS k#7,_2#6 AS v#8]
//    +- Scan PhysicalRDD[_1#5,_2#6]

Unlike RDDs Spark Dataset (including Dataset[Row] a.k.a DataFrame) cannot use custom partitioner as for now. You can typically address that by creating an artificial partitioning column but it won't give you the same flexibility.

Spark < 1.6.0:

One thing you can do is to pre-partition input data before you create a DataFrame

import org.apache.spark.sql.types._
import org.apache.spark.sql.Row
import org.apache.spark.HashPartitioner

val schema = StructType(Seq(
  StructField("x", StringType, false),
  StructField("y", LongType, false),
  StructField("z", DoubleType, false)
))

val rdd = sc.parallelize(Seq(
  Row("foo", 1L, 0.5), Row("bar", 0L, 0.0), Row("??", -1L, 2.0),
  Row("foo", -1L, 0.0), Row("??", 3L, 0.6), Row("bar", -3L, 0.99)
))

val partitioner = new HashPartitioner(5) 

val partitioned = rdd.map(r => (r.getString(0), r))
  .partitionBy(partitioner)
  .values

val df = sqlContext.createDataFrame(partitioned, schema)

Since DataFrame creation from an RDD requires only a simple map phase existing partition layout should be preserved*:

assert(df.rdd.partitions == partitioned.partitions)

The same way you can repartition existing DataFrame:

sqlContext.createDataFrame(
  df.rdd.map(r => (r.getInt(1), r)).partitionBy(partitioner).values,
  df.schema
)

So it looks like it is not impossible. The question remains if it make sense at all. I will argue that most of the time it doesn't:

1. Repartitioning is an expensive process. In a typical scenario most of the data has to be serialized, shuffled and deserialized. From the other hand number of operations which can benefit from a pre-partitioned data is relatively small and is further limited if internal API is not designed to leverage this property.

   • joins in some scenarios, but it would require an internal support,
   • window functions calls with matching partitioner. Same as above, limited to a single window definition. It is already partitioned internally though, so pre-partitioning may be redundant,
   • simple aggregations with GROUP BY - it is possible to reduce memory footprint of the temporary buffers**, but overall cost is much higher. More or less equivalent to groupByKey.mapValues(_.reduce) (current behavior) vs reduceByKey (pre-partitioning). Unlikely to be useful in practice.
   • data compression with SqlContext.cacheTable. Since it looks like it is using run length encoding, applying OrderedRDDFunctions.repartitionAndSortWithinPartitions could improve compression ratio.

2. Performance is highly dependent on a distribution of the keys. If it is skewed it will result in a suboptimal resource utilization. In the worst case scenario it will be impossible to finish the job at all.

3. A whole point of using a high level declarative API is to isolate yourself from a low level implementation details. As already mentioned by @dwysakowicz and @RomiKuntsman an optimization is a job of the Catalyst Optimizer. It is a pretty sophisticated beast and I really doubt you can easily improve on that without diving much deeper into its internals.

Related concepts

Partitioning with JDBC sources:

JDBC data sources support predicates argument. It can be used as follows:

sqlContext.read.jdbc(url, table, Array("foo = 1", "foo = 3"), props)

It creates a single JDBC partition per predicate. Keep in mind that if sets created using individual predicates are not disjoint you'll see duplicates in the resulting table.

partitionBy method in DataFrameWriter:

Spark DataFrameWriter provides partitionBy method which can be used to "partition" data on write. It separates data on write using provided set of columns

val df = Seq(
  ("foo", 1.0), ("bar", 2.0), ("foo", 1.5), ("bar", 2.6)
).toDF("k", "v")

df.write.partitionBy("k").json("/tmp/foo.json")

This enables predicate push down on read for queries based on key:

val df1 = sqlContext.read.schema(df.schema).json("/tmp/foo.json")
df1.where($"k" === "bar")

but it is not equivalent to DataFrame.repartition. In particular aggregations like:

val cnts = df1.groupBy($"k").sum()

will still require TungstenExchange:

cnts.explain

// == Physical Plan ==
// TungstenAggregate(key=[k#90], functions=[(sum(v#91),mode=Final,isDistinct=false)], output=[k#90,sum(v)#93])
// +- TungstenExchange hashpartitioning(k#90,200), None
//    +- TungstenAggregate(key=[k#90], functions=[(sum(v#91),mode=Partial,isDistinct=false)], output=[k#90,sum#99])
//       +- Scan JSONRelation[k#90,v#91] InputPaths: file:/tmp/foo.json

bucketBy method in DataFrameWriter (Spark >= 2.0):

bucketBy has similar applications as partitionBy but it is available only for tables (saveAsTable). Bucketing information can used to optimize joins:

// Temporarily disable broadcast joins
spark.conf.set("spark.sql.autoBroadcastJoinThreshold", -1)

df.write.bucketBy(42, "k").saveAsTable("df1")
val df2 = Seq(("A", -1.0), ("B", 2.0)).toDF("k", "v2")
df2.write.bucketBy(42, "k").saveAsTable("df2")

// == Physical Plan ==
// *Project [k#41, v#42, v2#47]
// +- *SortMergeJoin [k#41], [k#46], Inner
//    :- *Sort [k#41 ASC NULLS FIRST], false, 0
//    :  +- *Project [k#41, v#42]
//    :     +- *Filter isnotnull(k#41)
//    :        +- *FileScan parquet default.df1[k#41,v#42] Batched: true, Format: Parquet, Location: InMemoryFileIndex[file:/spark-warehouse/df1], PartitionFilters: [], PushedFilters: [IsNotNull(k)], ReadSchema: struct<k:string,v:int>
//    +- *Sort [k#46 ASC NULLS FIRST], false, 0
//       +- *Project [k#46, v2#47]
//          +- *Filter isnotnull(k#46)
//             +- *FileScan parquet default.df2[k#46,v2#47] Batched: true, Format: Parquet, Location: InMemoryFileIndex[file:/spark-warehouse/df2], PartitionFilters: [], PushedFilters: [IsNotNull(k)], ReadSchema: struct<k:string,v2:double>

* By partition layout I mean only a data distribution. partitioned RDD has no longer a partitioner. ** Assuming no early projection. If aggregation covers only small subset of columns there is probably no gain whatsoever.

The JTable constructor accepts two arguments 2dimension Object Array for the data, and String Array for the column names.

eg:

import java.awt.BorderLayout;
import java.awt.Color;
import javax.swing.JFrame;
import javax.swing.JPanel;
import javax.swing.JScrollPane;
import javax.swing.JTable;

public class Test6 extends JFrame {

    public Test6(){     
        this.setSize(300,300);
        this.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
        Mpanel m = new Mpanel();
        this.add(m,BorderLayout.CENTER);        
    }


    class Mpanel extends JPanel {       

        JTable mTable;
        private Object[][] cells = {{"Vivek",10.00},{"Vishal",20.00}};
        private String[] columnNames = { "Planet", "Radius" };
        JScrollPane mScroll;

        public Mpanel(){
            this.setSize(150,150);
            this.setComponent();
        }

        public void setComponent(){
            mTable = new JTable(cells,columnNames);
            mTable.setAutoCreateRowSorter(true);
            mScroll = new JScrollPane(mTable);

            this.add(mScroll);
        }
    }

    public static void main(String[] args){     
        new Test6().setVisible(true);
    }
}

Using aggregate is the right approach, but you need to $unwind the list array before applying the $match so that you can filter individual elements and then use $group to put it back together:

db.test.aggregate([
    { $match: {_id: ObjectId("512e28984815cbfcb21646a7")}},
    { $unwind: '$list'},
    { $match: {'list.a': {$gt: 3}}},
    { $group: {_id: '$_id', list: {$push: '$list.a'}}}
])

outputs:

{
  "result": [
    {
      "_id": ObjectId("512e28984815cbfcb21646a7"),
      "list": [
        4,
        5
      ]
    }
  ],
  "ok": 1
}

MongoDB 3.2 Update

Starting with the 3.2 release, you can use the new $filter aggregation operator to do this more efficiently by only including the list elements you want during a $project:

db.test.aggregate([
    { $match: {_id: ObjectId("512e28984815cbfcb21646a7")}},
    { $project: {
        list: {$filter: {
            input: '$list',
            as: 'item',
            cond: {$gt: ['$$item.a', 3]}
        }}
    }}
])

you also can simply use

<script type="text/javascript">

   var data = [];

   @foreach (var r in Model.rows)
   {
       @:data.push([ @r.UnixTime * 1000, @r.Value ]);
   }
</script>

note @:

class Demo 
{
    public static void main(String[] args) 
    {
        int a[]={3,2,1,4,2,1};
        System.out.print("Before Sorting:");
        for (int i=0;i<a.length; i++ )
        {
            System.out.print(a[i]+"\t");
        }
        System.out.print ("\nAfter Sorting:");
        //sorting the elements
        for(int i=0;i<a.length;i++)
        {
            for(int j=i;j<a.length;j++)
            {
                if(a[i]>a[j])
                {
                    int temp=a[i];
                    a[i]=a[j];
                    a[j]=temp;
                }

            }
        }

        //After sorting
        for(int i=0;i<a.length;i++)
        {
            System.out.print(a[i]+"\t");
        }
        System.out.print("\nAfter removing duplicates:");
        int b=0;
        a[b]=a[0];
        for(int i=0;i<a.length;i++)
        {
            if (a[b]!=a[i])
            {
                b++;
                a[b]=a[i];
            }
        }
        for (int i=0;i<=b;i++ )
        {
            System.out.print(a[i]+"\t");
        }
    }
}
  OUTPUT:Before Sortng:3 2 1 4 2 1 After Sorting:1 1 2 2 3 4 
                Removing Duplicates:1 2 3 4

To specify a directory to search for (binary) libraries, you just use -L:

-L/data[...]/lib

To specify the actual library name, you use -l:

-lfoo  # (links libfoo.a or libfoo.so)

To specify a directory to search for include files (different from libraries!) you use -I:

-I/data[...]/lib

So I think what you want is something like

g++ -g -Wall -I/data[...]/lib testing.cpp fileparameters.cpp main.cpp -o test

These compiler flags (amongst others) can also be found at the GNU GCC Command Options manual:

• 3.16 Options for Directory Search

Fortunately a solution exists. You must add a wrapper for parent and change z-index of this wrapper for example 10, and set z-index for child to -1:

.parent {_x000D_
    position: relative;_x000D_
    width: 750px;_x000D_
    height: 7150px;_x000D_
    background: red;_x000D_
    border: solid 1px #000;_x000D_
    z-index: initial;_x000D_
}_x000D_
_x000D_
.child {_x000D_
    position: relative;_x000D_
    background-color: blue;_x000D_
    z-index: -1;_x000D_
    color: white;_x000D_
}_x000D_
_x000D_
.wrapper {_x000D_
    position: relative;_x000D_
    background: green;_x000D_
    z-index: 10;_x000D_
}

<div class="wrapper">_x000D_
    <div class="parent">parent parent_x000D_
        <div class="child">child child child</div>_x000D_
    </div>_x000D_
</div>

I also had the same issue. I've tried all described here solutions but they didn't help me. Then I've removed all emulators in the Android Virtual Device Manager and created new ones. The problem was in CPU/ABI system image configuration of the Android Virtual Device Manager. On my Windows10 machine emulator with system image x86 always is offline where emulator with system image x86_64 is working fine as expected. Just be aware of this

A previous answer using LPAD() is optimal. However, in the event you want to do special or advanced processing, here is a method that allows more iterative control over the padding. Also serves as an example using other constructs to achieve the same thing.

UPDATE
    mytable
SET
    mycolumn = CONCAT(
        REPEAT(
            "0",
            8 - LENGTH(mycolumn)
        ),
        mycolumn
    )
WHERE
    LENGTH(mycolumn) < 8;

There are no auto incrementing features in Oracle for a column. You need to create a SEQUENCE object. You can use the sequence like:

insert into table(batch_id, ...) values(my_sequence.nextval, ...)

...to return the next number. To find out the last created sequence nr (in your session), you would use:

my_sequence.currval

This site has several complete examples on how to use sequences.

Try this:

WebRequest request = WebRequest.CreateDefault(RequestUrl);
request.Method = "GET";

WebResponse response;
try { response = request.GetResponse(); }
catch (WebException exc) { response = exc.Response; }

if (response == null)
    throw new HttpException((int)HttpStatusCode.NotFound, "The requested url could not be found.");

using(StreamReader reader = new StreamReader(response.GetResponseStream())) {
    string requestedText = reader.ReadToEnd();

    // do what you want with requestedText
}

Sorry about the C#, I know you asked for VB, but I didn't have time to convert.

Actually, there is a better way to do it than split:

public string GetFirstFromSplit(string input, char delimiter)
{
    var i = input.IndexOf(delimiter);

    return i == -1 ? input : input.Substring(0, i);
}

And as extension methods:

public static string FirstFromSplit(this string source, char delimiter)
{
    var i = source.IndexOf(delimiter);

    return i == -1 ? source : source.Substring(0, i);
}

public static string FirstFromSplit(this string source, string delimiter)
{
    var i = source.IndexOf(delimiter);

    return i == -1 ? source : source.Substring(0, i);
}

Usage:

string result = "hi, hello, sup".FirstFromSplit(',');
Console.WriteLine(result); // "hi"

Nothing compares to extjs in terms of community size and presence on StackOverflow. Despite previous controversy, Ext JS now has a GPLv3 open source license. Its learning curve is long, but it can be quite rewarding once learned. Ext JS lacks a Material Design theme, and the team has repeatedly refused to release the source code on GitHub. For mobile, one must use the separate Sencha Touch library.

Have in mind also that,

large JavaScript libraries, such as YUI, have been receiving less attention from the community. Many developers today look at large JavaScript libraries as walled gardens they don’t want to be locked into.

-- Announcement of YUI development being ceased

That said, below are a number of Ext JS alternatives currently available.

Leading client widget libraries

1. Blueprint is a React-based UI toolkit developed by big data analytics company Palantir in TypeScript, and "optimized for building complex data-dense interfaces for desktop applications". Actively developed on GitHub as of May 2019, with comprehensive documentation. Components range from simple (chips, toast, icons) to complex (tree, data table, tag input with autocomplete, date range picker. No accordion or resizer.

   Blueprint targets modern browsers (Chrome, Firefox, Safari, IE 11, and Microsoft Edge) and is licensed under a modified Apache license.

   Sandbox / demo • GitHub • Docs

2. Webix - an advanced, easy to learn, mobile-friendly, responsive and rich free&open source JavaScript UI components library. Webix spun off from DHTMLX Touch (a project with 8 years of development behind it - see below) and went on to become a standalone UI components framework. The GPL3 edition allows commercial use and lets non-GPL applications using Webix keep their license, e.g. MIT, via a license exemption for FLOSS. Webix has 55 UI widgets, including trees, grids, treegrids and charts. Funding comes from a commercial edition with some advanced widgets (Pivot, Scheduler, Kanban, org chart etc.). Webix has an extensive list of free and commercial widgets, and integrates with most popular frameworks (React, Vue, Meteor, etc) and UI components.

   

   Skins look modern, and include a Material Design theme. The Touch theme also looks quite Material Design-ish. See also the Skin Builder.

   Minimal GitHub presence, but includes the library code, and the documentation (which still needs major improvements). Webix suffers from a having a small team and a lack of marketing. However, they have been responsive to user feedback, both on GitHub and on their forum.

   The library was lean (128Kb gzip+minified for all 55 widgets as of ~2015), faster than ExtJS, dojo and others, and the design is pleasant-looking. The current version of Webix (v6, as of Nov 2018) got heavier (400 - 676kB minified but NOT gzipped).

   The demos on Webix.com look and function great. The developer, XB Software, uses Webix in solutions they build for paying customers, so there's likely a good, funded future ahead of it.

   Webix aims for backwards compatibility down to IE8, and as a result carries some technical debt.

   Wikipedia • GitHub • Playground/sandbox • Admin dashboard demo • Demos • Widget samples

3. react-md - MIT-licensed Material Design UI components library for React. Responsive, accessible. Implements components from simple (buttons, cards) to complex (sortable tables, autocomplete, tags input, calendars). One lead author, ~1900 GitHub stars.

4. kendo - jQuery-based UI toolkit with 40+ basic open-source widgets, plus commercial professional widgets (grids, trees, charts etc.). Responsive&mobile support. Works with Bootstrap and AngularJS. Modern, with Material Design themes. The documentation is available on GitHub, which has enabled numerous contributions from users (4500+ commits, 500+ PRs as of Jan 2015).

   

   Well-supported commercially, claiming millions of developers, and part of a large family of developer tools. Telerik has received many accolades, is a multi-national company (Bulgaria, US), was acquired by Progress Software, and is a thought leader.

   A Kendo UI Professional developer license costs $700 and posting access to most forums is conditioned upon having a license or being in the trial period.

   [Wikipedia] • GitHub/Telerik • Demos • Playground • Tools

5. OpenUI5 - jQuery-based UI framework with 180 widgets, Apache 2.0-licensed and fully-open sourced and funded by German software giant SAP SE.

   

   The community is much larger than that of Webix, SAP is hiring developers to grow OpenUI5, and they presented OpenUI5 at OSCON 2014.

   The desktop themes are rather lackluster, but the Fiori design for web and mobile looks clean and neat.

   Wikipedia • GitHub • Mobile-first controls demos • Desktop controls demos • SO

6. DHTMLX - JavaScript library for building rich Web and Mobile apps. Looks most like ExtJS - check the demos. Has been developed since 2005 but still looks modern. All components except TreeGrid are available under GPLv2 but advanced features for many components are only available in the commercial PRO edition - see for example the tree. Claims to be used by many Fortune 500 companies.

   

   Minimal presence on GitHub (the main library code is missing) and StackOverflow but active forum. The documentation is not available on GitHub, which makes it difficult to improve by the community.

7. Polymer, a Web Components polyfill, plus Polymer Paper, Google's implementation of the Material design. Aimed at web and mobile apps. Doesn't have advanced widgets like trees or even grids but the controls it provides are mobile-first and responsive. Used by many big players, e.g. IBM or USA Today.

   

8. Ant Design claims it is "a design language for background applications", influenced by "nature" and helping designers "create low-entropy atmosphere for developer team". That's probably a poor translation from Chinese for "UI components for enterprise web applications". It's a React UI library written in TypeScript, with many components, from simple (buttons, cards) to advanced (autocomplete, calendar, tag input, table).

   The project was born in China, is popular with Chinese companies, and parts of the documentation are available only in Chinese. Quite popular on GitHub, yet it makes the mistake of splitting the community into Chinese and English chat rooms. The design looks Material-ish, but fonts are small and the information looks lost in a see of whitespace.

9. PrimeUI - collection of 45+ rich widgets based on jQuery UI. Apache 2.0 license. Small GitHub community. 35 premium themes available.

10. qooxdoo - "a universal JavaScript framework with a coherent set of individual components", developed and funded by German hosting provider 1&1 (see the contributors, one of the world's largest hosting companies. GPL/EPL (a business-friendly license).

    Mobile themes look modern but desktop themes look old (gradients).

    

    Wikipedia • GitHub • Web/Mobile/Desktop demos • Widgets Demo browser • Widget browser • SO • Playground • Community

11. jQuery UI - easy to pick up; looks a bit dated; lacks advanced widgets. Of course, you can combine it with independent widgets for particular needs, e.g. trees or other UI components, but the same can be said for any other framework.

12. angular + Angular UI. While Angular is backed by Google, it's being radically revamped in the upcoming 2.0 version, and "users will need to get to grips with a new kind of architecture. It's also been confirmed that there will be no migration path from Angular 1.X to 2.0". Moreover, the consensus seems to be that Angular 2 won't really be ready for use until a year or two from now. Angular UI has relatively few widgets (no trees, for example).

13. DojoToolkit and their powerful Dijit set of widgets. Completely open-sourced and actively developed on GitHub, but development is now (Nov 2018) focused on the new dojo.io framework, which has very few basic widgets. BSD/AFL license. Development started in 2004 and the Dojo Foundation is being sponsored by IBM, Google, and others - see Wikipedia. 7500 questions here on SO.

    

    Themes look desktop-oriented and dated - see the theme tester in dijit. The official theme previewer is broken and only shows "Claro". A Bootstrap theme exists, which looks a lot like Bootstrap, but doesn't use Bootstrap classes. In Jan 2015, I started a thread on building a Material Design theme for Dojo, which got quite popular within the first hours. However, there are questions regarding building that theme for the current Dojo 1.10 vs. the next Dojo 2.0. The response to that thread shows an active and wide community, covering many time zones.

    Unfortunately, Dojo has fallen out of popularity and fewer companies appear to use it, despite having (had?) a strong foothold in the enterprise world. In 2009-2012, its learning curve was steep and the documentation needed improvements; while the documentation has substantially improved, it's unclear how easy it is to pick up Dojo nowadays.

    With a Material Design theme, Dojo (2.0?) might be the killer UI components framework.

    Wikipedia • GitHub • Themes • Demos • Desktop widgets • SO

14. Enyo - front-end library aimed at mobile and TV apps (e.g. large touch-friendly controls). Developed by LG Electronix and Apache-licensed on GitHub.

15. The radical Cappuccino - Objective-J (a superset of JavaScript) instead of HTML+CSS+DOM

16. Mochaui, MooTools UI Library User Interface Library. <300 GitHub stars.

17. CrossUI - cross-browser JS framework to develop and package the exactly same code and UI into Web Apps, Native Desktop Apps (Windows, OS X, Linux) and Mobile Apps (iOS, Android, Windows Phone, BlackBerry). Open sourced LGPL3. Featured RAD tool (form builder etc.). The UI looks desktop-, not web-oriented. Actively developed, small community. No presence on GitHub.

18. ZinoUI - simple widgets. The DataTable, for instance, doesn't even support sorting.

19. Wijmo - good-looking commercial widgets, with old (jQuery UI) widgets open-sourced on GitHub (their development stopped in 2013). Developed by ComponentOne, a division of GrapeCity. See Wijmo Complete vs. Open.

20. CxJS - commercial JS framework based on React, Babel and webpack offering form elements, form validation, advanced grid control, navigational elements, tooltips, overlays, charts, routing, layout support, themes, culture dependent formatting and more.

Widgets - Demo Apps - Examples - GitHub

Full-stack frameworks

1. SproutCore - developed by Apple for web applications with native performance, handling large data sets on the client. Powers iCloud.com. Not intended for widgets.

2. Wakanda: aimed at business/enterprise web apps - see What is Wakanda?. Architecture:

   • Wakanda Server (server-side JavaScript (custom engine) + open-source NoSQL database)
   • desktop IDE and WYSIWYG editor for tables, forms, reports

   • Wakanda Application Framework (datasource layer + browser-based interface widgets) that helps with browser and device compatibility across desktop and mobile

     Wakanda is highly integrated, includes a ton of features out of the box, but has a very small GitHub community and SO presence.

3. Servoy - "a cross platform frontend development and deployment environment for SQL databases". Boasts a "full WYSIWIG (What You See Is What You Get) UI designer for HTML5 with built-in data-binding to back-end services", responsive design, support for HTML6 Web Components, Websockets and mobile platforms. Written in Java and generates JavaScript code using various JavaBeans.

4. SmartClient/SmartGWT - mobile and cross-browser HTML5 UI components combined with a Java server. Aimed at building powerful business apps - see demos.

5. Vaadin - full-stack Java/GWT + JavaScript/HTML3 web app framework

6. Backbase - portal software

7. Shiny - front-end library on top R, with visualization, layout and control widgets

8. ZKOSS: Java+jQuery+Bootstrap framework for building enterprise web and mobile apps.

CSS libraries + minimal widgets

These libraries don't implement complex widgets such as tables with sorting/filtering, autocompletes, or trees.

1. Bootstrap

2. Foundation for Apps - responsive front-end framework on top of AngularJS; more of a grid/layout/navigation library

3. UI Kit - similar to Bootstrap, with fewer widgets, but with official off-canvas.

Libraries using HTML Canvas

Using the canvas elements allows for complete control over the UI, and great cross-browser compatibility, but comes at the cost of missing native browser functionality, e.g. page search via Ctrl/Cmd+F.

1. Zebra - demos

No longer developed as of Dec 2014

1. Yahoo! User Interface - YUI, launched in 2005, but no longer maintained by the core contributors - see the announcement, which highlights reasons why large UI widget libraries are perceived as walled gardens that developers don't want to be locked into.
2. echo3, GitHub. Supports writing either server-side Java applications that don't require developer knowledge of HTML, HTTP, or JavaScript, or client-side JavaScript-based applications do not require a server, but can communicate with one via AJAX. Last update: July 2013.
3. ampleSDK
4. Simpler widgets livepipe.net
5. JxLib
6. rialto
7. Simple UI kit
8. Prototype-ui

Other lists

• Best of JS - component toolkits
• Wikipedia's Comparison of JavaScript frameworks
• Wikipedia's list of GUI-related JavaScript libraries
• jqueryuiwidgets.com - detailed jQuery widgets feature comparison

select year(current_timestamp)

SQLFiddle demo

This happened to me when:

• Even with my servlet having only the method "doPost"

• And the form method="POST"

• I tried to access the action using the URL directly, without using the form submitt. Since the default method for the URL is the doGet method, when you don't use the form submit, you'll see @ your console the http 405 error.

Solution: Use only the form button you mapped to your servlet action.

Think of an object like a Speaker. If Speaker is a class, It will have different variables such as volume, treble, bass, color etc. You define all these fields while defining the Speaker class. For example, you declared the color field with a static modifier, that means you're telling the compiler that there is exactly one copy of this variable in existence, regardless of how many times the class has been instantiated.

Declaring

static final String color = "Black"; 

will make sure that whenever this class is instantiated, the value of color field will be "Black" unless it is not changed.

public class Speaker {

static String color = "Black";

}

public class Sample {

public static void main(String args[]) {
    System.out.println(Speaker.color); //will provide output as "Black"
            Speaker.color = "white";
    System.out.println(Speaker.color);  //will provide output as "White"
}}

Note : Now once you change the color of the speaker as final this code wont execute, because final keyword makes sure that the value of the field never changes.

public class Speaker {

static final String color = "Black";

}

public class Sample {

public static void main(String args[]) {
    System.out.println(Speaker.color); //should provide output as "Black"
            Speaker.color = "white"; //Error because the value of color is fixed.  
    System.out.println(Speaker.color); //Code won't execute.
}}

You may copy/paste this code directly into your emulator and try.

On the Mac: Instead of JAVA_OPTS and MAVEN_OPTS, use _JAVA_OPTIONS instead. This works!

What do you mean by "version number"? It is quite common to tag a commit with a version number and then use

$ git describe --tags

to identify the current HEAD w.r.t. any tags. If you mean you want to know the hash of the current HEAD, you probably want:

$ git rev-parse HEAD

or for the short revision hash:

$ git rev-parse --short HEAD

It is often sufficient to do:

$ cat .git/refs/heads/${branch-master}

but this is not reliable as the ref may be packed.

these are primitive data types

• boolean
• character
• byte
• short
• integer
• long
• float
• double

saved in stack in the memory which is managed memory on the other hand object data type or reference data type stored in head in the memory managed by GC

this is the most important difference

"They can make deleting records more cumbersome - you can't delete the "master" record where there are records in other tables where foreign keys would violate that constraint."

It's important to remember that the SQL standard defines actions that are taken when a foreign key is deleted or updated. The ones I know of are:

• ON DELETE RESTRICT - Prevents any rows in the other table that have keys in this column from being deleted. This is what Ken Ray described above.
• ON DELETE CASCADE - If a row in the other table is deleted, delete any rows in this table that reference it.
• ON DELETE SET DEFAULT - If a row in the other table is deleted, set any foreign keys referencing it to the column's default.
• ON DELETE SET NULL - If a row in the other table is deleted, set any foreign keys referencing it in this table to null.
• ON DELETE NO ACTION - This foreign key only marks that it is a foreign key; namely for use in OR mappers.

These same actions also apply to ON UPDATE.

The default seems to depend on which sql server you're using.

You can try with SqlBulkCopy class.

Lets you efficiently bulk load a SQL Server table with data from another source.

There is a cool blog post about how you can use it.

Answers above elucidated many things, but I think it is useful to make a conceptual distinction.

What if you take a perfectly on-focus picture of a blurred image?

The blurring detection problem is only well posed when you have a reference. If you need to design, e.g., an auto-focus system, you compare a sequence of images taken with different degrees of blurring, or smoothing, and you try to find the point of minimum blurring within this set. I other words you need to cross reference the various images using one of the techniques illustrated above (basically--with various possible levels of refinement in the approach--looking for the one image with the highest high-frequency content).

Dynamic one liner using jQuery

All CSS methods I have come across are too rigid. Also, setting the footer to fixed is not an option if that's not part of the design.

Tested on:

• Chrome: 60
• FF: 54
• IE: 11

Assuming this layout:

<html>

<body>
  <div id="content"></div>
  <div id="footer"></div>
</body>

</html>

Use the following jQuery function:

$('#content').css("min-height", $(window).height() - $("#footer").height() + "px");

What that does is set the min-height for #content to the window height - the height of the footer what ever that might be at the time.

Since we used min-height, if #content height exceeds the window height, the function degrades gracefully and does not any effect anything since it's not needed.

See it in action:

$("#fix").click(function() {
  $('#content').css("min-height", $(window).height() - $("#footer").height() + "px");
});

* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html {
  background: #111;
}

body {
  text-align: center;
  background: #444
}

#content {
  background: #999;
}

#footer {
  background: #777;
  width: 100%;
}

<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>

<html>

<body>
  <div id="content">
    <p>Very short content</p>
    <button id="fix">Fix it!</button>
  </div>
  <div id="footer">Mr. Footer</div>
</body>

</html>

Same snippet on JsFiddle

Bonus:

We can take this further and make this function adapt to dynamic viewer height resizing like so:

$(window).resize(function() {
    $('#content').css("min-height", $(window).height() - $("#footer").height() + "px");
  }).resize();

* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html {
  background: #111;
}

body {
  text-align: center;
  background: #444
}

#content {
  background: #999;
}

#footer {
  background: #777;
  width: 100%;
}

<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>

<html>

<body>
  <div id="content">
    <p>Very short content</p>
  </div>
  <div id="footer">Mr. Footer</div>
</body>

</html>

Use .astype.

>>> a = numpy.array([1, 2, 3, 4], dtype=numpy.float64)
>>> a
array([ 1.,  2.,  3.,  4.])
>>> a.astype(numpy.int64)
array([1, 2, 3, 4])

See the documentation for more options.

When you press enter in a form the natural behaviour of form is to being submited, to stop this behaviour which is not natural, you have to prevent it from submiting( default behaviour), with jquery:

$("#yourFormId").on("submit",function(event){event.preventDefault()})

For Bash 3, there is a particular case that has a nice and simple solution:

If you don't want to handle a lot of variables, or keys are simply invalid variable identifiers, and your array is guaranteed to have less than 256 items, you can abuse function return values. This solution does not require any subshell as the value is readily available as a variable, nor any iteration so that performance screams. Also it's very readable, almost like the Bash 4 version.

Here's the most basic version:

hash_index() {
    case $1 in
        'foo') return 0;;
        'bar') return 1;;
        'baz') return 2;;
    esac
}

hash_vals=("foo_val"
           "bar_val"
           "baz_val");

hash_index "foo"
echo ${hash_vals[$?]}

Remember, use single quotes in case, else it's subject to globbing. Really useful for static/frozen hashes from the start, but one could write an index generator from a hash_keys=() array.

Watch out, it defaults to the first one, so you may want to set aside zeroth element:

hash_index() {
    case $1 in
        'foo') return 1;;
        'bar') return 2;;
        'baz') return 3;;
    esac
}

hash_vals=("",           # sort of like returning null/nil for a non existent key
           "foo_val"
           "bar_val"
           "baz_val");

hash_index "foo" || echo ${hash_vals[$?]}  # It can't get more readable than this

Caveat: the length is now incorrect.

Alternatively, if you want to keep zero-based indexing, you can reserve another index value and guard against a non-existent key, but it's less readable:

hash_index() {
    case $1 in
        'foo') return 0;;
        'bar') return 1;;
        'baz') return 2;;
        *)   return 255;;
    esac
}

hash_vals=("foo_val"
           "bar_val"
           "baz_val");

hash_index "foo"
[[ $? -ne 255 ]] && echo ${hash_vals[$?]}

Or, to keep the length correct, offset index by one:

hash_index() {
    case $1 in
        'foo') return 1;;
        'bar') return 2;;
        'baz') return 3;;
    esac
}

hash_vals=("foo_val"
           "bar_val"
           "baz_val");

hash_index "foo" || echo ${hash_vals[$(($? - 1))]}

./me casts raise_dead()

I was looking for something like this, but I also needed to reuse the same string minus two parameters so I ended up with something like:

my_exe ()
{
    mysql -sN -e "select $1 from heat.stack where heat.stack.name=\"$2\";"
}

This is something I use to monitor openstack heat stack creation. In this case I expect two conditions, an action 'CREATE' and a status 'COMPLETE' on a stack named "Somestack"

To get those variables I can do something like:

ACTION=$(my_exe action Somestack)
STATUS=$(my_exe status Somestack)
if [[ "$ACTION" == "CREATE" ]] && [[ "$STATUS" == "COMPLETE" ]]
...

There is no need to use angular http, you can get with js native functions

// you will ned this function to fetch the image blob._x000D_
async function getImage(url, fileName) {_x000D_
     // on the first then you will return blob from response_x000D_
    return await fetch(url).then(r => r.blob())_x000D_
    .then((blob) => { // on the second, you just create a file from that blob, getting the type and name that intend to inform_x000D_
         _x000D_
        return new File([blob], fileName+'.'+   blob.type.split('/')[1]) ;_x000D_
    });_x000D_
}_x000D_
_x000D_
// example url_x000D_
var url = 'https://img.freepik.com/vetores-gratis/icone-realista-quebrado-vidro-fosco_1284-12125.jpg';_x000D_
_x000D_
// calling the function_x000D_
getImage(url, 'your-name-image').then(function(file) {_x000D_
_x000D_
    // with file reader you will transform the file in a data url file;_x000D_
    var reader = new FileReader();_x000D_
    reader.readAsDataURL(file);_x000D_
    reader.onloadend = () => {_x000D_
    _x000D_
    // just putting the data url to img element_x000D_
        document.querySelector('#image').src = reader.result ;_x000D_
    }_x000D_
})

<img src="" id="image"/>

Change android:stretchColumns value to *.

Value 0 means stretch the first column. Value 1 means stretch the second column and so on.

Value * means stretch all the columns.

Here is the solution:

var isMobile = {
    Android: function() {
        return /Android/i.test(navigator.userAgent);
    },
    iOS: function() {
        return /iPhone|iPad|iPod/i.test(navigator.userAgent);
    }
};
if(isMobile.Android())
    {
        var previousWidth=$(window).width();
        $(window).on({
        resize: function(e) {
        var YourFunction=(function(){

            var screenWidth=$(window).width();
            if(previousWidth!=screenWidth)
            {
                previousWidth=screenWidth;
                alert("oreientation changed");
            }

        })();

        }
    });

    }
    else//mainly for ios
    {
        $(window).on({
            orientationchange: function(e) {
               alert("orientation changed");
            }   
        });
    }

If the project is maven, change the "finalName" in pom.xml and Update Project as Maven.This worked for me.

In addition to the excellent examples and answers above, you can also do a "find" for two different elements using their classes. For example:

<div class="parent">
<div class="child1">Hello</div>
<div class="child2">World</div>
</div>

<script>
var x = jQuery('.parent').find('.child1, .child2').text();
console.log(x);
</script>

This should output "HelloWorld".

Typescript will always complain when it is unable to find a symbol. The compiler comes together with a set of default definitions for window, document and such specified in a file called lib.d.ts. If I do a grep for require in this file I can find no definition of a function require. Hence, we have to tell the compiler ourselves that this function will exist at runtime using the declare syntax:

declare function require(name:string);
var sampleModule = require('modulename');

On my system, this compiles just fine.

There is a lightweight JSON library for C# called SimpleJson.

It supports .NET 3.5+, Silverlight and Windows Phone 7.

It supports dynamic for .NET 4.0

It can also be installed as a NuGet package

Install-Package SimpleJson

You can use Django's to-python queryset serializer.

Just put the following code in your view:

from django.core import serializers
data = serializers.serialize( "python", SomeModel.objects.all() )

And then in the template:

{% for instance in data %}
    {% for field, value in instance.fields.items %}
        {{ field }}: {{ value }}
    {% endfor %}
{% endfor %}

Its great advantage is the fact that it handles relation fields.

For the subset of fields try:

data = serializers.serialize('python', SomeModel.objects.all(), fields=('name','size'))

1. Constant extrapolation

You can use interp function from scipy, it extrapolates left and right values as constant beyond the range:

>>> from scipy import interp, arange, exp
>>> x = arange(0,10)
>>> y = exp(-x/3.0)
>>> interp([9,10], x, y)
array([ 0.04978707,  0.04978707])

2. Linear (or other custom) extrapolation

You can write a wrapper around an interpolation function which takes care of linear extrapolation. For example:

from scipy.interpolate import interp1d
from scipy import arange, array, exp

def extrap1d(interpolator):
    xs = interpolator.x
    ys = interpolator.y

    def pointwise(x):
        if x < xs[0]:
            return ys[0]+(x-xs[0])*(ys[1]-ys[0])/(xs[1]-xs[0])
        elif x > xs[-1]:
            return ys[-1]+(x-xs[-1])*(ys[-1]-ys[-2])/(xs[-1]-xs[-2])
        else:
            return interpolator(x)

    def ufunclike(xs):
        return array(list(map(pointwise, array(xs))))

    return ufunclike

extrap1d takes an interpolation function and returns a function which can also extrapolate. And you can use it like this:

x = arange(0,10)
y = exp(-x/3.0)
f_i = interp1d(x, y)
f_x = extrap1d(f_i)

print f_x([9,10])

Output:

[ 0.04978707  0.03009069]

Write-Host "$($assoc.Id) - $($assoc.Name) - $($assoc.Owner)"

See the Windows PowerShell Language Specification Version 3.0, p34, sub-expressions expansion.

Swift 4 Version

Using Key-Value Observing Notify objects about changes to the properties of other objects.

var textFieldObserver: NSKeyValueObservation?

textFieldObserver = yourTextField.observe(\.text, options: [.new, .old]) { [weak self] (object, changeValue) in
  guard let strongSelf = self else { return }
  print(changeValue)
}

Using Java:

private WebDriver driver = new FirefoxDriver();
WebElement element = driver.findElement(By.id("<ElementID>"));//Enter ID for the element. You can use Name, xpath, cssSelector whatever you like
element.sendKeys(Keys.TAB);
element.sendKeys(Keys.ENTER);

Using C#:

private IWebDriver driver = new FirefoxDriver();
IWebElement element = driver.FindElement(By.Name("q"));
element.SendKeys(Keys.Tab);
element.SendKeys(Keys.Enter);

This is just an example based on Ned Batchelder's explanation.

__getattr__ example:

class Foo(object):
    def __getattr__(self, attr):
        print "looking up", attr
        value = 42
        self.__dict__[attr] = value
        return value

f = Foo()
print f.x 
#output >>> looking up x 42

f.x = 3
print f.x 
#output >>> 3

print ('__getattr__ sets a default value if undefeined OR __getattr__ to define how to handle attributes that are not found')

And if same example is used with __getattribute__ You would get >>> RuntimeError: maximum recursion depth exceeded while calling a Python object

This might be a little late to answer but most simple and accurate way to compute square root is newton's method.

You have a number which you want to compute its square root (num) and you have a guess of its square root (estimate). Estimate can be any number bigger than 0, but a number that makes sense shortens the recursive call depth significantly.

new_estimate = (estimate + num / estimate) / 2

This line computes a more accurate estimate with those 2 parameters. You can pass new_estimate value to the function and compute another new_estimate which is more accurate than the previous one or you can make a recursive function definition like this.

def newtons_method(num, estimate):
    # Computing a new_estimate
    new_estimate = (estimate + num / estimate) / 2
    print(new_estimate)
    # Base Case: Comparing our estimate with built-in functions value
    if new_estimate == math.sqrt(num):
        return True
    else:
        return newtons_method(num, new_estimate)

For example we need to find 30's square root. We know that the result is between 5 and 6.

newtons_method(30,5)

number is 30 and estimate is 5. The result from each recursive calls are:

5.5
5.477272727272727
5.4772255752546215
5.477225575051661

The last result is the most accurate computation of the square root of number. It is the same value as the built-in function math.sqrt().

There's a very short with "fast answer" here : How to test if remote TCP port is opened from Shell script?

nc -z <host> <port>; echo $?

I use it with 127.0.0.1 as "remote" address.

this returns "0" if the port is open and "1" if the port is closed

e.g.

nc -z 127.0.0.1 80; echo $?

-z Specifies that nc should just scan for listening daemons, without sending any data to them. It is an error to use this option in conjunc- tion with the -l option.

try something like this..

jQuery.validator.addMethod("phoneValidate", function(number, element) {
    number = number.replace(/\s+/g, ""); 
    return this.optional(element) || number.length > 9 &&
        number.match(/^(1-?)?(\([2-9]\d{2}\)|[2-9]\d{2})-?[2-9]\d{2}-?\d{4}$/);
}, "Please specify a valid phone number");

$("#myform").validate({
  rules: {
    field: {
      required: true,
      phoneValidate: true
    }
  }
});

table
{
  table-layout:fixed;
}
td,th
{
  width:20px; 
  word-wrap:break-word;
}

:first-child ... :nth-child(1) or ...

single and easy js function for calc time meridian in real time

JS

   function convertTime24to12(time24h) {
                var timex = time24h.split(':');

                if(timex[0] !== undefined && timex [1] !== undefined)
                 {
                     var hor = parseInt(timex[0]) > 12 ? (parseInt(timex[0])-12) : timex[0] ;
                     var minu = timex[1];
                     var merid = parseInt(timex[0]) < 12 ? 'AM' : 'PM';

                     var res = hor+':'+minu+' '+merid;

                     document.getElementById('timeMeridian').innerHTML=res.toString();
                 }
            }

Html

 <label for="end-time">Hour <i id="timeMeridian"></i> </label>
            <input type="time" name="hora" placeholder="Hora" id="end-time" class="form-control" onkeyup="convertTime24to12(this.value)">

Only SVG with path information. you can't do that to the image.. as the path you can change stroke and fill information and you are done. like Illustrator

so: via CSS you can overwrite path fill value

path { fill: orange; }

but if you want more flexible way as you want to change it with a text when having some hovering effect going on.. use

path { fill: currentcolor; }

body {_x000D_
  background: #ddd;_x000D_
  text-align: center;_x000D_
  padding-top: 2em;_x000D_
}_x000D_
_x000D_
.parent {_x000D_
  width: 320px;_x000D_
  height: 50px;_x000D_
  display: block;_x000D_
  transition: all 0.3s;_x000D_
  cursor: pointer;_x000D_
  padding: 12px;_x000D_
  box-sizing: border-box;_x000D_
}_x000D_
_x000D_
/***  desired colors for children  ***/_x000D_
.parent{_x000D_
  color: #000;_x000D_
  background: #def;_x000D_
}_x000D_
.parent:hover{_x000D_
  color: #fff;_x000D_
  background: #85c1fc;_x000D_
}_x000D_
_x000D_
.parent span{_x000D_
  font-size: 18px;_x000D_
  margin-right: 8px;_x000D_
  font-weight: bold;_x000D_
  font-family: 'Helvetica';_x000D_
  line-height: 26px;_x000D_
  vertical-align: top;_x000D_
}_x000D_
.parent svg{_x000D_
  max-height: 26px;_x000D_
  width: auto;_x000D_
  display: inline;_x000D_
}_x000D_
_x000D_
/****  magic trick  *****/_x000D_
.parent svg path{_x000D_
  fill: currentcolor;_x000D_
}

<div class='parent'>_x000D_
  <span>TEXT WITH SVG</span>_x000D_
  <svg version="1.1" xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink" width="128" height="128" viewBox="0 0 32 32">_x000D_
<path d="M30.148 5.588c-2.934-3.42-7.288-5.588-12.148-5.588-8.837 0-16 7.163-16 16s7.163 16 16 16c4.86 0 9.213-2.167 12.148-5.588l-10.148-10.412 10.148-10.412zM22 3.769c1.232 0 2.231 0.999 2.231 2.231s-0.999 2.231-2.231 2.231-2.231-0.999-2.231-2.231c0-1.232 0.999-2.231 2.231-2.231z"></path>_x000D_
</svg>_x000D_
</div>

Translate with ord() and unichar(). Every unicode char have a number asociated, something like an index. So Python have a few methods to translate between a char and his number. Downside is a ñ example. Hope it can help.

>>> C = 'ñ'
>>> U = C.decode('utf8')
>>> U
u'\xf1'
>>> ord(U)
241
>>> unichr(241)
u'\xf1'
>>> print unichr(241).encode('utf8')
ñ

Here is code

DatabaseMyHandler.class

public class DatabaseMyHandler extends SQLiteOpenHelper {

    private SQLiteDatabase myDataBase;
    private Context context = null;
    private static String TABLE_NAME = "customer";
    public static final String DATABASE_NAME = "Student.db";
    public final static String DATABASE_PATH = "/data/data/com.pkgname/databases/";
    public static final int DATABASE_VERSION = 2;

    public DatabaseMyHandler(Context context) {
        super(context, DATABASE_NAME, null, DATABASE_VERSION);
        this.context = context;
        try {
            createDatabase();
        } catch (IOException e) {
            e.printStackTrace();
        }
    }


    @Override
    public void onCreate(SQLiteDatabase sqLiteDatabase) {
        myDataBase = sqLiteDatabase;

    }

    @Override
    public void onUpgrade(SQLiteDatabase sqLiteDatabase, int i, int i1) {

    }

    //Check database already exists or not

    private boolean checkDatabaseExists() {
        boolean checkDB = false;
        try {
            String PATH = DATABASE_PATH + DATABASE_NAME;
            File dbFile = new File(PATH);
            checkDB = dbFile.exists();

        } catch (SQLiteException e) {

        }
        return checkDB;
    }


    //Create a empty database on the system
    public void createDatabase() throws IOException {
        boolean dbExist = checkDatabaseExists();

        if (dbExist) {
            Log.v("DB Exists", "db exists");
        }

        boolean dbExist1 = checkDatabaseExists();
        if (!dbExist1) {
            this.getWritableDatabase();
            try {
                this.close();
                copyDataBase();
            } catch (IOException e) {
                throw new Error("Error copying database");
            }
        }
    }

    //Copies your database from your local assets-folder to the just created empty database in the system folder
    private void copyDataBase() throws IOException {
        String outFileName = DATABASE_PATH + DATABASE_NAME;
        OutputStream myOutput = new FileOutputStream(outFileName);
        InputStream myInput = context.getAssets().open(DATABASE_NAME);

        byte[] buffer = new byte[1024];
        int length;
        while ((length = myInput.read(buffer)) > 0) {
            myOutput.write(buffer, 0, length);
        }
        myInput.close();
        myOutput.flush();
        myOutput.close();
    }


    //Open Database
    public void openDatabase() throws SQLException {
        String PATH = DATABASE_PATH + DATABASE_NAME;
        myDataBase = SQLiteDatabase.openDatabase(PATH, null, SQLiteDatabase.OPEN_READWRITE);
    }

    //for insert data into database


    public void insertCustomer(String customer_id, String email_id, String password, String description, int balance_amount) {
        try {
            openDatabase();
            SQLiteDatabase db = this.getWritableDatabase();
            ContentValues contentValues = new ContentValues();
            contentValues.put("customer_id", customer_id);
            contentValues.put("email_id", email_id);
            contentValues.put("password", password);
            contentValues.put("description", description);
            contentValues.put("balance_amount", balance_amount);
            db.insert(TABLE_NAME, null, contentValues);
        } catch (SQLException e) {
            e.printStackTrace();
        }
    }


    public ArrayList<ModelCreateCustomer> getLoginIdDetail(String email_id, String password) {

        ArrayList<ModelCreateCustomer> result = new ArrayList<ModelCreateCustomer>();
        //boolean flag = false;
        String selectQuery = "SELECT * FROM " + TABLE_NAME + " WHERE email_id='" + email_id + "' AND password='" + password + "'";

        try {
            openDatabase();
            Cursor cursor = myDataBase.rawQuery(selectQuery, null);
            //cursor.moveToFirst();


            if (cursor.getCount() > 0) {
                if (cursor.moveToFirst()) {
                    do {
                        ModelCreateCustomer model = new ModelCreateCustomer();
                        model.setId(cursor.getInt(cursor.getColumnIndex("id")));
                        model.setCustomerId(cursor.getString(cursor.getColumnIndex("customer_id")));
                        model.setCustomerEmailId(cursor.getString(cursor.getColumnIndex("email_id")));
                        model.setCustomerPassword(cursor.getString(cursor.getColumnIndex("password")));
                        model.setCustomerDesription(cursor.getString(cursor.getColumnIndex("description")));
                        model.setCustomerBalanceAmount(cursor.getInt(cursor.getColumnIndex("balance_amount")));

                        result.add(model);
                    }
                    while (cursor.moveToNext());
                }
                Toast.makeText(context, "Login Successfully", Toast.LENGTH_SHORT).show();
            }

//            Log.e("Count", "" + cursor.getCount());
            cursor.close();
            myDataBase.close();
        } catch (SQLException e) {
            e.printStackTrace();
        }


        return result;
    }

    public void updateCustomer(String id, String email_id, String description, int balance_amount) {

        try {
            openDatabase();
            SQLiteDatabase db = this.getWritableDatabase();
            ContentValues contentValues = new ContentValues();
            contentValues.put("email_id", email_id);
            contentValues.put("description", description);
            contentValues.put("balance_amount", balance_amount);

            db.update(TABLE_NAME, contentValues, "id=" + id, null);

        } catch (SQLException e) {
            e.printStackTrace();
        }

    }
}

Customer.class

public class Customer extends AppCompatActivity{
  private DatabaseMyHandler mydb;
  @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_customer);

        mydb = new DatabaseMyHandler(CreateCustomerActivity.this);
 mydb.insertCustomer("1", "[email protected]", "123", "test", 100);

    }

}

After trying, below command work for me

cd ~
yum install -y xorg-x11-fonts-75dpi xorg-x11-fonts-Type1 openssl git-core fontconfig
wget https://downloads.wkhtmltopdf.org/0.12/0.12.4/wkhtmltox-0.12.4_linux-generic-amd64.tar.xz
tar xvf wkhtmltox-0.12.4_linux-generic-amd64.tar.xz
mv wkhtmltox/bin/wkhtmlto* /usr/bin

Though this question has an answer, I resolved it differently when I had the same issue. I had this issue when I copied folders with the option Create Folder references; then the above solution of adding the folder to the build_path worked. But when the folder was added using the Create groups for any added folder option, the headers were picked up automatically.

You should set height of html, body, .wrapper to 100% (in order to inherit full height) and then just set a flex value greater than 1 to .row3 and not on the others.

.wrapper, html, body {
    height: 100%;
    margin: 0;
}
.wrapper {
    display: flex;
    flex-direction: column;
}
#row1 {
    background-color: red;
}
#row2 {
    background-color: blue;
}
#row3 {
    background-color: green;
    flex:2;
    display: flex;
}
#col1 {
    background-color: yellow;
    flex: 0 0 240px;
    min-height: 100%;/* chrome needed it a question time , not anymore */
}
#col2 {
    background-color: orange;
    flex: 1 1;
    min-height: 100%;/* chrome needed it a question time , not anymore */
}
#col3 {
    background-color: purple;
    flex: 0 0 240px;
    min-height: 100%;/* chrome needed it a question time , not anymore */
}

<div class="wrapper">
    <div id="row1">this is the header</div>
    <div id="row2">this is the second line</div>
    <div id="row3">
        <div id="col1">col1</div>
        <div id="col2">col2</div>
        <div id="col3">col3</div>
    </div>
</div>

DEMO

You do not have to install something.

parseInt(req.params.year, 10);

should work properly.

console.log(typeof parseInt(req.params.year)); // returns 'number'

What is your output, if you use parseInt? is it still a string?

I use Apache server, so I've used mod_proxy module. Enable modules:

LoadModule proxy_module modules/mod_proxy.so
LoadModule proxy_http_module modules/mod_proxy_http.so

Then add:

ProxyPass /your-proxy-url/ http://service-url:serviceport/

Finally, pass proxy-url to your script.

mysqli_select_db() should have 2 parameters, the connection link and the database name -

mysqli_select_db($con, 'phpcadet') or die(mysqli_error($con));

Using mysqli_error in the die statement will tell you exactly what is wrong as opposed to a generic error message.

List<string> myList = new List<string>();
IEnumerable<string> myEnumerable = myList;
List<string> listAgain = myEnumerable.ToList();

Java 8

new Handler(Looper.getMainLooper()).post(() -> {
    // Work in the UI thread

}; 

Kotlin

Handler(Looper.getMainLooper()).post{
    // Work in the UI thread
}

GL

import os
import tempfile

path = tempfile.mktemp(dir=path)
os.makedirs(path)
os.rmdir(path)

to insert ad-hoc value like (12,"xyz), do this:

insert into table foo select * from (select 12,"xyz")a;

You may try this:

public static void main(String[] args) {
    BigDecimal a = new BigDecimal("10.12345");
    System.out.println(toPrecision(a, 2));
}

private static BigDecimal toPrecision(BigDecimal dec, int precision) {
    String plain = dec.movePointRight(precision).toPlainString();
    return new BigDecimal(plain.substring(0, plain.indexOf("."))).movePointLeft(precision);
}

OUTPUT:

10.12

Better yet use a oneliner:

Dump remoteDB to localDB:

mysqldump -uroot -pMypsw -h remoteHost remoteDB | mysql -u root -pMypsw localDB

Dump localDB to remoteDB:

mysqldump -uroot -pmyPsw localDB | mysql -uroot -pMypsw -h remoteHost remoteDB

Vim does have a rename function, but unfortunately it does not retain the history.

The easiest OS agnostic way to rename a file without losing the history would be:

:saveas new_file_name
:call delete(expand('#:p'))

expand('#:p') returns the full path of the older file.

Use :bd # if you also want to delete the older file from the buffer list.

Or create a plugin

If you want to use a quick command to rename the file, add a new file under ~/.vim/plugin with the following contents:

function! s:rename_file(new_file_path)
  execute 'saveas ' . a:new_file_path
  call delete(expand('#:p'))
  bd #
endfunction

command! -nargs=1 -complete=file Rename call <SID>rename_file(<f-args>)

The command Rename will help you to quickly rename a file.

It depends on the application and the purpose. When high availability and performance is not critical, it's not bad to not to separate the DB and web server. Especially considering the performance gains - if the appliation makes a large amount of database queries, a considerable amount of network load can be removed by keeping it all on the same system, keeping the response times low.

It is possible with a one liner:

values = ('275', '54000', '0.0', '5000.0', '0.0')
values = ('300', *values[1:])

This jsfiddle works fine for me.

$(document).delegate(':file', 'change', function() {
    console.log(this);
});

Note: .delegate() is the fastest event-binding method for jQuery < 1.7: event-binding methods

With Yglu, you can import other files like this:

A.yaml

foo: !? $import('B.yaml')

B.yaml

bar: Hello

$ yglu A.yaml
foo:
  bar: Hello

As $import is a function, you can also pass an expression as argument:

  dep: !- b
  foo: !? $import($_.dep.toUpper() + '.yaml')

This would give the same output as above.

Disclaimer: I am the author of Yglu.

refer below link for getting ScanResult with redundant ssid removed from the list

duplicate SSID in scanning wifi result

Something like:

SELECT id, email, IF(active = 1, 'enabled', 'disabled') AS account_status FROM users

This allows you to make operations and show it as columns.

EDIT:

you can also use joins and show operations as columns:

SELECT u.id, e.email, IF(c.id IS NULL, 'no selected', c.name) AS country
FROM users u LEFT JOIN countries c ON u.country_id = c.id

\w is not a word boundary, it matches any word character, including underscores: [a-zA-Z0-9_]. \b is a word boundary, that is, it matches the position between a word and a non-alphanumeric character: \W or [^\w].

These implementations may vary from language to language though.

One simple way to do that is:

String url = "http://test.com/Services/rest/{id}/Identifier"

UriComponents uriComponents = UriComponentsBuilder.fromUriString(url).build();
uriComponents = uriComponents.expand(Collections.singletonMap("id", "1234"));

and then adds the query params.

There are many good answers here already, but I wanted to share a more complete example that both:

• doesn't assume uname exists on Windows
• also detects the processor

The CCFLAGS defined here aren't necessarily recommended or ideal; they're just what the project to which I was adding OS/CPU auto-detection happened to be using.

ifeq ($(OS),Windows_NT)
    CCFLAGS += -D WIN32
    ifeq ($(PROCESSOR_ARCHITEW6432),AMD64)
        CCFLAGS += -D AMD64
    else
        ifeq ($(PROCESSOR_ARCHITECTURE),AMD64)
            CCFLAGS += -D AMD64
        endif
        ifeq ($(PROCESSOR_ARCHITECTURE),x86)
            CCFLAGS += -D IA32
        endif
    endif
else
    UNAME_S := $(shell uname -s)
    ifeq ($(UNAME_S),Linux)
        CCFLAGS += -D LINUX
    endif
    ifeq ($(UNAME_S),Darwin)
        CCFLAGS += -D OSX
    endif
    UNAME_P := $(shell uname -p)
    ifeq ($(UNAME_P),x86_64)
        CCFLAGS += -D AMD64
    endif
    ifneq ($(filter %86,$(UNAME_P)),)
        CCFLAGS += -D IA32
    endif
    ifneq ($(filter arm%,$(UNAME_P)),)
        CCFLAGS += -D ARM
    endif
endif

I know this is really old, but I'm posting my solution anyways since google finds this thread.

background-image: url('./imagefolder/image.jpg');

That is what I do. Two dots means drill back one directory closer to root ".." while one "." should mean start where you are at as if it were root. I was having similar issues but adding that fixed it for me. You can even leave the "." in it when uploading to your host because it should work fine so long as your directory setup is exactly the same.

I know this has been answered, but in VB.net above 2013 (the lowest I've personally used) you can just compare strings with an = operator. This is the easiest way.

So basically:

If string1 = string2 Then
    'do a thing
End If

I believe this is what you're looking for:

var press = jQuery.Event("keypress");
press.ctrlKey = false;
press.which = 40;
$("whatever").trigger(press);

From here.

You can think of a mysql database as a schema/user in Oracle. If you have the privileges, you can query the DBA_USERS view to see the list of schema.

From Resetting SQL Server Identity Columns:

Retrieving the identity for the table Employees:

DBCC checkident ('Employees')

Repairing the identity seed (if for some reason the database is inserting duplicate identities):

DBCC checkident ('Employees', reseed)

Changing the identity seed for the table Employees to 1000:

DBCC checkident ('Employees', reseed, 1000)

The next row inserted will begin at 1001.

The easiest way seems to be subtracting the second number from the first:

var numericArray:Array<number> = [2,3,4,1,5,8,11];

var sorrtedArray:Array<number> = numericArray.sort((n1,n2) => n1 - n2);

https://alligator.io/js/array-sort-numbers/

We to faced similar issue while setting spring.profiles.active in java.

This is what we figured out in the end, after trying four different ways of providing spring.profiles.active.

In java-8

$ java --spring.profiles.active=dev -jar my-service.jar
Gives unrecognized --spring.profiles.active option.

$ java -jar my-service.jar --spring.profiles.active=dev
# This works fine

$ java -Dspring.profiles.active=dev -jar my-service.jar
# This works fine

$ java -jar my-service.jar -Dspring.profiles.active=dev
# This doesn't works

In java-11

$ java --spring.profiles.active=dev -jar my-service.jar
Gives unrecognized --spring.profiles.active option.

$ java -jar my-service.jar --spring.profiles.active=dev
# This doesn't works

$ java -Dspring.profiles.active=dev -jar my-service.jar
# This works fine

$ java -jar my-service.jar -Dspring.profiles.active=dev
# This doesn't works

NOTE: If you're specifying spring.profiles.active in your application.properties file then make sure you provide spring.config.location or spring.config.additional-location option to java accordingly as mentioned above.

For a solution in Swift please refer to this thread on SO.

Basically the solution in Swift would look like this:

#if DEBUG
    println("I'm running in DEBUG mode")
#else
    println("I'm running in a non-DEBUG mode")
#endif

Additionally you will need to set the DEBUG symbol in Swift Compiler - Custom Flags section for the Other Swift Flags key via a -D DEBUG entry. See the following screenshot for an example:

Your call to text() doesn't output anything because you inverted your x and your y:

plot(abs_losses, percent_losses, 
     main= "Absolute Losses vs. Relative Losses(in%)",
     xlab= "Losses (absolute, in miles of millions)",
     ylab= "Losses relative (in % of January´2007 value)",
     col= "blue", pch = 19, cex = 1, lty = "solid", lwd = 2)

text(abs_losses, percent_losses, labels=namebank, cex= 0.7)

Now if you want to move your labels down, left, up or right you can add argument pos= with values, respectively, 1, 2, 3 or 4. For instance, to place your labels up:

 text(abs_losses, percent_losses, labels=namebank, cex= 0.7, pos=3)

You can of course gives a vector of value to pos if you want some of the labels in other directions (for instance for Goldman_Sachs, UBS and Société_Generale since they are overlapping with other labels):

 pos_vector <- rep(3, length(namebank))
 pos_vector[namebank %in% c("Goldman_Sachs", "Societé_Generale", "UBS")] <- 4
 text(abs_losses, percent_losses, labels=namebank, cex= 0.7, pos=pos_vector)

You can simply show your actual image directory(less secure). By just 2 line of code.

 $dir = base_url()."photos/";

echo"<a href=".$dir.">Photo Directory</a>";

Because python checks in the directories in sequential order starting at the first directory in sys.path list, till it find the .py file it was looking for.

Ideally, the current directory or the directory of the script is the first always the first element in the list, unless you modify it, like you did. From documentation -

As initialized upon program startup, the first item of this list, path[0], is the directory containing the script that was used to invoke the Python interpreter. If the script directory is not available (e.g. if the interpreter is invoked interactively or if the script is read from standard input), path[0] is the empty string, which directs Python to search modules in the current directory first. Notice that the script directory is inserted before the entries inserted as a result of PYTHONPATH.

So, most probably, you had a .py file with the same name as the module you were trying to import from, in the current directory (where the script was being run from).

Also, a thing to note about ImportErrors , lets say the import error says - ImportError: No module named main - it doesn't mean the main.py is overwritten, no if that was overwritten we would not be having issues trying to read it. Its some module above this that got overwritten with a .py or some other file.

Example -

My directory structure looks like -

 - test
    - shared
         - __init__.py
         - phtest.py
  - testmain.py

Now From testmain.py , I call from shared import phtest , it works fine.

Now lets say I introduce a shared.py in test directory` , example -

 - test
    - shared
         - __init__.py
         - phtest.py
  - testmain.py 
  - shared.py

Now when I try to do from shared import phtest from testmain.py , I will get the error -

ImportError: cannot import name 'phtest'

As you can see above, the file that is causing the issue is shared.py , not phtest.py .

Try:

msg['Subject'] = "Auto Hella Restart Report " + sys.argv[1]

The + operator is overridden in python to concatenate strings.

It's complicated.

First of all, in this code

const p = new Promise((resolve) => {
    resolve(4);
});

the type of p is inferred as Promise<{}>. There is open issue about this on typescript github, so arguably this is a bug, because obviously (for a human), p should be Promise<number>.

Then, Promise<{}> is compatible with Promise<number>, because basically the only property a promise has is then method, and then is compatible in these two promise types in accordance with typescript rules for function types compatibility. That's why there is no error in whatever1.

But the purpose of async is to pretend that you are dealing with actual values, not promises, and then you get the error in whatever2 because {} is obvioulsy not compatible with number.

So the async behavior is the same, but currently some workaround is necessary to make typescript compile it. You could simply provide explicit generic argument when creating a promise like this:

const whatever2 = async (): Promise<number> => {
    return new Promise<number>((resolve) => {
        resolve(4);
    });
};

I would counsel against using if ($hash{$key}) since it will not do what you expect if the key exists but its value is zero or empty.

Let me just add a warning to all the existing answers:

When using the SELECT ... FROM syntax, you should keep in mind that it is proprietary syntax for T-SQL and is non-deterministic. The worst part is, that you get no warning or error, it just executes smoothly.

Full explanation with example is in the documentation:

Use caution when specifying the FROM clause to provide the criteria for the update operation. The results of an UPDATE statement are undefined if the statement includes a FROM clause that is not specified in such a way that only one value is available for each column occurrence that is updated, that is if the UPDATE statement is not deterministic.

If its working when you are using a browser and then passing on your username and password for the first time - then this means that once authentication is done Request header of your browser is set with required authentication values, which is then passed on each time a request is made to hosting server.

So start with inspecting Request Header (this could be done using Web Developers tools), Once you established whats required in header then you could pass this within your HttpWebRequest Header.

Example with Digest Authentication:

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Security.Cryptography;
using System.Text.RegularExpressions;
using System.Net;
using System.IO;

namespace NUI
{
    public class DigestAuthFixer
    {
        private static string _host;
        private static string _user;
        private static string _password;
        private static string _realm;
        private static string _nonce;
        private static string _qop;
        private static string _cnonce;
        private static DateTime _cnonceDate;
        private static int _nc;

public DigestAuthFixer(string host, string user, string password)
{
    // TODO: Complete member initialization
    _host = host;
    _user = user;
    _password = password;
}

private string CalculateMd5Hash(
    string input)
{
    var inputBytes = Encoding.ASCII.GetBytes(input);
    var hash = MD5.Create().ComputeHash(inputBytes);
    var sb = new StringBuilder();
    foreach (var b in hash)
        sb.Append(b.ToString("x2"));
    return sb.ToString();
}

private string GrabHeaderVar(
    string varName,
    string header)
{
    var regHeader = new Regex(string.Format(@"{0}=""([^""]*)""", varName));
    var matchHeader = regHeader.Match(header);
    if (matchHeader.Success)
        return matchHeader.Groups[1].Value;
    throw new ApplicationException(string.Format("Header {0} not found", varName));
}

private string GetDigestHeader(
    string dir)
{
    _nc = _nc + 1;

    var ha1 = CalculateMd5Hash(string.Format("{0}:{1}:{2}", _user, _realm, _password));
    var ha2 = CalculateMd5Hash(string.Format("{0}:{1}", "GET", dir));
    var digestResponse =
        CalculateMd5Hash(string.Format("{0}:{1}:{2:00000000}:{3}:{4}:{5}", ha1, _nonce, _nc, _cnonce, _qop, ha2));

    return string.Format("Digest username=\"{0}\", realm=\"{1}\", nonce=\"{2}\", uri=\"{3}\", " +
        "algorithm=MD5, response=\"{4}\", qop={5}, nc={6:00000000}, cnonce=\"{7}\"",
        _user, _realm, _nonce, dir, digestResponse, _qop, _nc, _cnonce);
}

public string GrabResponse(
    string dir)
{
    var url = _host + dir;
    var uri = new Uri(url);

    var request = (HttpWebRequest)WebRequest.Create(uri);

    // If we've got a recent Auth header, re-use it!
    if (!string.IsNullOrEmpty(_cnonce) &&
        DateTime.Now.Subtract(_cnonceDate).TotalHours < 1.0)
    {
        request.Headers.Add("Authorization", GetDigestHeader(dir));
    }

    HttpWebResponse response;
    try
    {
        response = (HttpWebResponse)request.GetResponse();
    }
    catch (WebException ex)
    {
        // Try to fix a 401 exception by adding a Authorization header
        if (ex.Response == null || ((HttpWebResponse)ex.Response).StatusCode != HttpStatusCode.Unauthorized)
            throw;

        var wwwAuthenticateHeader = ex.Response.Headers["WWW-Authenticate"];
        _realm = GrabHeaderVar("realm", wwwAuthenticateHeader);
        _nonce = GrabHeaderVar("nonce", wwwAuthenticateHeader);
        _qop = GrabHeaderVar("qop", wwwAuthenticateHeader);

        _nc = 0;
        _cnonce = new Random().Next(123400, 9999999).ToString();
        _cnonceDate = DateTime.Now;

        var request2 = (HttpWebRequest)WebRequest.Create(uri);
        request2.Headers.Add("Authorization", GetDigestHeader(dir));
        response = (HttpWebResponse)request2.GetResponse();
    }
    var reader = new StreamReader(response.GetResponseStream());
    return reader.ReadToEnd();
}

}

Then you could call it:

DigestAuthFixer digest = new DigestAuthFixer(domain, username, password);
string strReturn = digest.GrabResponse(dir);

if Url is: http://xyz.rss.com/folder/rss then domain: http://xyz.rss.com (domain part) dir: /folder/rss (rest of the url)

you could also return it as stream and use XmlDocument Load() method.

If you're running windows 7:

I was trying to decide the best way to do this securely, but the lazy way is :

1. right-click the parent folder
2. click the "properties" button
3. click the "security" tab
4. click the "edit" button
5. click the group that starts with "Users"
6. click the checkbox that says "full control"
7. click all the OK's to close the dialogs.

I realize this might circumvent windows "security" features, but it gets the job done.

UPDATE 2017-03-29: Added date-fns, some notes on Moment and Datejs
UPDATE 2016-09-14: Added SugarJS which seems to have some excellent date/time functions.

OK, since no one has actually provided an actual answer, here is mine.

A library is certainly the best bet for handling dates and times in a standard way. There are lots of edge cases in date/time calculations so it is useful to be able to hand-off the development to a library.

Here is a list of the main Node compatible time formatting libraries:

• Moment.js [thanks to Mustafa] "A lightweight (4.3k) javascript date library for parsing, manipulating, and formatting dates" - Includes internationalization, calculations and relative date formats - Update 2017-03-29: Not quite so light-weight any more but still the most comprehensive solution, especially if you need timezone support.
• date-fns [added 2017-03-29, thanks to Fractalf] Small, fast, works with standard JS date objects. Great alternative to Moment if you don't need timezone support.
• SugarJS - A general helper library adding much needed features to JavaScripts built-in object types. Includes some excellent looking date/time capabilities.
• strftime - Just what it says, nice and simple
• dateutil - This is the one I used to use before MomentJS
• node-formatdate
• TimeTraveller - "Time Traveller provides a set of utility methods to deal with dates. From adding and subtracting, to formatting. Time Traveller only extends date objects that it creates, without polluting the global namespace."
• Tempus [thanks to Dan D] - UPDATE: this can also be used with Node and deployed with npm, see the docs

There are also non-Node libraries:

• Datejs [thanks to Peter Olson] - not packaged in npm or GitHub so not quite so easy to use with Node - not really recommended as not updated since 2007!

Simplest way to resolve double-click on IPad is wrapping your css for hover effect in media query @media (pointer: fine):

@media (pointer: fine) {
  a span {
    display: none;
  }
  a:hover span {
    display: inline-block;
  }
}

CSS that wrapped in this media query will applying only on desktop.

Explanation of this solution is here https://css-tricks.com/annoying-mobile-double-tap-link-issue/

I would recommend using JQuery (It seems that Co-lab includes JQuery by default).

function ClickConnect(){
  console.log("Working");
  $("colab-toolbar-button").click();
}
setInterval(ClickConnect,60000);

Using Windows Command Prompt:

rmdir /s /q folder

Using Powershell:

powershell -Command "Remove-Item -LiteralPath 'folder' -Force -Recurse"

Note that in more cases del and rmdir wil leave you with leftover files, where Powershell manages to delete the files.

Wow, what on earth? Is it just me or are all these answers wrong or at least misleading?

The Boolean class is a wrapper around the boolean primitive type. The use of this wrapper is to be able to pass a boolean in a method that accepts an object or generic. Ie vector.

A Boolean object can NEVER have a value of null. If your reference to a Boolean is null, it simply means that your Boolean was never created.

You might find this useful: http://grepcode.com/file/repository.grepcode.com/java/root/jdk/openjdk/6-b14/java/lang/Boolean.java

A null Boolean reference should only be used to trigger similar logic to which you have any other null reference. Using it for three state logic is clumsy.

EDIT: notice, that Boolean a = true; is a misleading statement. This really equals something closer to Boolean a = new Boolean(true); Please see autoboxing here: http://en.wikipedia.org/wiki/Boxing_%28computer_science%29#Autoboxing

Perhaps this is where much of the confusion comes from.

EDIT2: Please read comments below. If anyone has an idea of how to restructure my answer to incorporate this, please do so.

$image = 'http://images.itracki.com/2011/06/favicon.png';
// Read image path, convert to base64 encoding
$imageData = base64_encode(file_get_contents($image));

// Format the image SRC:  data:{mime};base64,{data};
$src = 'data: '.mime_content_type($image).';base64,'.$imageData;

// Echo out a sample image
echo '<img src="' . $src . '">';

Bind you Datagrid to an ObservableCollection, and update your collection instead.

The question is old, but still receives a lot of attention. As the existing answers are outdated, here a more up-to-date solution:

Resizing local images

As of knitr 1.12, there is the function include_graphics. From ?include_graphics (emphasis mine):

The major advantage of using this function is that it is portable in the sense that it works for all document formats that knitr supports, so you do not need to think if you have to use, for example, LaTeX or Markdown syntax, to embed an external image. Chunk options related to graphics output that work for normal R plots also work for these images, such as out.width and out.height.

Example:

```{r, out.width = "400px"}
knitr::include_graphics("path/to/image.png")
```

Advantages:

• Over agastudy's answer: No need for external libraries or for re-rastering the image.
• Over Shruti Kapoor's answer: No need to manually write HTML. Besides, the image is included in the self-contained version of the file.

Including generated images

To compose the path to a plot that is generated in a chunk (but not included), the chunk options opts_current$get("fig.path") (path to figure directory) as well as opts_current$get("label") (label of current chunk) may be useful. The following example uses fig.path to include the second of two images which were generated (but not displayed) in the first chunk:

```{r generate_figures, fig.show = "hide"}
library(knitr)
plot(1:10, col = "green")
plot(1:10, col = "red")
```

```{r}
include_graphics(sprintf("%sgenerate_figures-2.png", opts_current$get("fig.path")))
```

The general pattern of figure paths is [fig.path]/[chunklabel]-[i].[ext], where chunklabel is the label of the chunk where the plot has been generated, i is the plot index (within this chunk) and ext is the file extension (by default png in RMarkdown documents).

The reason for the error is that the nextInt only pulls the integer, not the newline. If you add a in.nextLine() before your for loop, it will eat the empty new line and allow you to enter 3 names.

int nnames;
String names[];

System.out.print("How many names are you going to save: ");
Scanner in = new Scanner(System.in);
nnames = in.nextInt();

names = new String[nnames];
in.nextLine();
for (int i = 0; i < names.length; i++){
        System.out.print("Type a name: ");
        names[i] = in.nextLine();
}

or just read the line and parse the value as an Integer.

int nnames;
String names[];

System.out.print("How many names are you going to save: ");
Scanner in = new Scanner(System.in);
nnames = Integer.parseInt(in.nextLine().trim());

names = new String[nnames];
for (int i = 0; i < names.length; i++){
        System.out.print("Type a name: ");
        names[i] = in.nextLine();
}

In order to do this for multiple items do something like:

foreach (var item in Model)
{
    @Html.RadioButtonFor(m => m.item, "Yes") @:Yes
    @Html.RadioButtonFor(m => m.item, "No") @:No
}

I had the same problem using distribution provisioning profile. Check that you use developer profile

The easiest might be:

Array(1, 2, 3) :+ 4

Actually, Array can be implcitly transformed in a WrappedArray

Is there a command that does?

thread apply all where

If you are using Python 2, just run

sudo apt-get install python-matplotlib

The best way to get matplotlib is :

pip install matplotlib

cause the previous way may give you a old version of matplotlib

The recent versions of XAMPP for Windows runs PHP 7.x which are NOT compatible with mbcrypt. If you have a package like Laravel that requires mbcrypt, you will need to install an older version of XAMPP. OR, you can run XAMPP with multiple versions of PHP by downloading a PHP package from Windows.PHP.net, installing it in your XAMPP folder, and configuring php.ini and httpd.conf to use the correct version of PHP for your site.

 string[] parts = myString.Split(" ");
 string whatIWant = parts[0] + " "+ parts[1];

Set oShell = WScript.CreateObject("WSCript.shell")
oShell.run "cmd cd /d C:dir_test\file_test & sanity_check_env.bat arg1"

I don't think there is a way to ignore adding DEFINERs to the dump. But there are ways to remove them after the dump file is created.

1. Open the dump file in a text editor and replace all occurrences of DEFINER=root@localhost with an empty string ""

2. Edit the dump (or pipe the output) using perl:

   perl -p -i.bak -e "s/DEFINER=\`\w.*\`@\`\d[0-3].*[0-3]\`//g" mydatabase.sql
   

3. Pipe the output through sed:

   mysqldump ... | sed -e 's/DEFINER[ ]*=[ ]*[^*]*\*/\*/' > triggers_backup.sql
   

If you need exact '/' delimiters, for example: 09/20/2013 rather than 09.20.2013, use escape sequence '/':

Dim regDate As Date = Date.Now()
Dim strDate As String = regDate.ToString("MM\/dd\/yyyy")

For your question as asked

Columns(3).Insert
Range("c1:c4") = Application.Transpose(Array("Loc", "uk", "us", "nj"))

If you had a way of automatically looking up the data (ie matching uk against employer id) then you could do that in VBA

if (navigator.geolocation) { //Checks if browser supports geolocation
navigator.geolocation.getCurrentPosition(function (position) {                                                                                            
 var latitude = position.coords.latitude;                    //users current
 var longitude = position.coords.longitude;                 //location
 var coords = new google.maps.LatLng(latitude, longitude); //Creates variable for map coordinates
 var directionsService = new google.maps.DirectionsService();
 var directionsDisplay = new google.maps.DirectionsRenderer();
 var mapOptions = //Sets map options
 {
   zoom: 15,  //Sets zoom level (0-21)
   center: coords, //zoom in on users location
   mapTypeControl: true, //allows you to select map type eg. map or satellite
   navigationControlOptions:
   {
     style: google.maps.NavigationControlStyle.SMALL //sets map controls size eg. zoom
   },
   mapTypeId: google.maps.MapTypeId.ROADMAP //sets type of map Options:ROADMAP, SATELLITE, HYBRID, TERRIAN
 };
 map = new google.maps.Map( /*creates Map variable*/ document.getElementById("map"),    mapOptions /*Creates a new map using the passed optional parameters in the mapOptions parameter.*/);
 directionsDisplay.setMap(map);
 directionsDisplay.setPanel(document.getElementById('panel'));
 var request = {
   origin: coords,
   destination: 'BT42 1FL',
   travelMode: google.maps.DirectionsTravelMode.DRIVING
 };

 directionsService.route(request, function (response, status) {
   if (status == google.maps.DirectionsStatus.OK) {
     directionsDisplay.setDirections(response);
   }
 });
 });
 }

You can use Reflections framework for this

import static org.reflections.ReflectionUtils.*;
Set<Method> getters = ReflectionUtils.getAllMethods(someClass,
      withModifier(Modifier.PUBLIC), withPrefix("get"), withAnnotation(annotation));

CHAR is a fixed-length data type that uses as much space as possible. So a:= a||'one '; will require more space than is available. Your problem can be reduced to the following example:

declare
  v_foo char(50);
begin
  v_foo := 'A';
  dbms_output.put_line('length of v_foo(A) = ' || length(v_foo));
  -- next line will raise:
  -- ORA-06502: PL/SQL: numeric or value error: character string buffer too small
  v_foo := v_foo || 'B';
  dbms_output.put_line('length of v_foo(AB) = ' || length(v_foo));  
end;
/

Never use char. For rationale check the following question (read also the links):

• Oracle datatype: Should I use VARCHAR2 or CHAR

Go to the Build Path dialog (right-click project > Build Path > Configure Build Path) and make sure you have the correct source folder listed, and make sure it exists.

The source folder is the one that holds your sources, usuglaly in the form: project/src/com/yourpackage/...

If you want to filter the models by applicationname and the remaining models by surname:

List<Model> newList = list.Where(m => m.application == "applicationname")
    .Select(m => new Model { 
        application = m.application, 
        users = m.users.Where(u => u.surname == "surname").ToList() 
    }).ToList();

As you can see, it needs to create new models and user-lists, hence it is not the most efficient way.

If you instead don't want to filter the list of users but filter the models by users with at least one user with a given username, use Any:

List<Model> newList = list
    .Where(m => m.application == "applicationname"
            &&  m.users.Any(u => u.surname == "surname"))
    .ToList();

I use this script:

#!/bin/bash
topics=`kafka-topics --list --zookeeper zookeeper:2181`
for t in $topics; do 
    for p in retention.ms retention.bytes segment.ms segment.bytes; do
        kafka-topics --zookeeper zookeeper:2181 --alter --topic $t --config ${p}=100
    done
done
sleep 60
for t in $topics; do 
    for p in retention.ms retention.bytes segment.ms segment.bytes; do
        kafka-topics --zookeeper zookeeper:2181 --alter --topic $t --delete-config ${p}
    done
done

To increase the phpMyAdmin Session Timeout, open config.inc.php in the root phpMyAdmin directory and add this setting (anywhere).

$cfg['LoginCookieValidity'] = <your_new_timeout>;

Where <your_new_timeout> is some number larger than 1800.

Note:

Always keep on mind that a short cookie lifetime is all well and good for the development server. So do not do this on your production server.

There is the semicolon missing (;) after the "50%"

but you should also notice that the percentage of your div is connected to the div that contains it.

for instance:

<div id="wrapper">
  <div class="container">
   adsf
  </div>
</div>

#wrapper {
  height:100px;
}
.container
{
  width:80%;
  height:50%;
  background-color:#eee;
}

here the height of your .container will be 50px. it will be 50% of the 100px from the wrapper div.

if you have:

adsf

#wrapper {
  height:400px;
}
.container
{
  width:80%;
  height:50%;
  background-color:#eee;
}

then you .container will be 200px. 50% of the wrapper.

So you may want to look at the divs "wrapping" your ".container"...