Windows 10 (and Powershell 5.0 in general) allows you to create symbolic links via the New-Item cmdlet.

Usage:

New-Item -Path C:\LinkDir -ItemType SymbolicLink -Value F:\RealDir

Or in your profile:

function make-link ($target, $link) {
    New-Item -Path $link -ItemType SymbolicLink -Value $target
}

Turn on Developer Mode to not require admin privileges when making links with New-Item:

You can use div to achieve this. without img tag :) hope this helps.

.img{_x000D_
 width:100px;_x000D_
 height:100px;_x000D_
 background-image:url('http://www.mandalas.com/mandala/htdocs/images/Lrg_image_Pages/Flowers/Large_Orange_Lotus_8.jpg');_x000D_
 background-repeat:no-repeat;_x000D_
 background-position:center center;_x000D_
 border:1px solid red;_x000D_
 background-size:cover;_x000D_
}_x000D_
.img1{_x000D_
 width:100px;_x000D_
 height:100px;_x000D_
 background-image:url('https://images.freeimages.com/images/large-previews/9a4/large-pumpkin-1387927.jpg');_x000D_
 background-repeat:no-repeat;_x000D_
 background-position:center center;_x000D_
 border:1px solid red;_x000D_
 background-size:cover;_x000D_
}

<div class="img"> _x000D_
</div>_x000D_
<div class="img1"> _x000D_
</div>

A simpler scan would be:

String1.scan(/<(\S+)>/).last

2017 update

$lookup can now directly use an array as the local field. $unwind is no longer needed.

Old answer

The $lookup aggregation pipeline stage will not work directly with an array. The main intent of the design is for a "left join" as a "one to many" type of join ( or really a "lookup" ) on the possible related data. But the value is intended to be singular and not an array.

Therefore you must "de-normalise" the content first prior to performing the $lookup operation in order for this to work. And that means using $unwind:

db.orders.aggregate([
    // Unwind the source
    { "$unwind": "$products" },
    // Do the lookup matching
    { "$lookup": {
       "from": "products",
       "localField": "products",
       "foreignField": "_id",
       "as": "productObjects"
    }},
    // Unwind the result arrays ( likely one or none )
    { "$unwind": "$productObjects" },
    // Group back to arrays
    { "$group": {
        "_id": "$_id",
        "products": { "$push": "$products" },
        "productObjects": { "$push": "$productObjects" }
    }}
])

After $lookup matches each array member the result is an array itself, so you $unwind again and $group to $push new arrays for the final result.

Note that any "left join" matches that are not found will create an empty array for the "productObjects" on the given product and thus negate the document for the "product" element when the second $unwind is called.

Though a direct application to an array would be nice, it's just how this currently works by matching a singular value to a possible many.

As $lookup is basically very new, it currently works as would be familiar to those who are familiar with mongoose as a "poor mans version" of the .populate() method offered there. The difference being that $lookup offers "server side" processing of the "join" as opposed to on the client and that some of the "maturity" in $lookup is currently lacking from what .populate() offers ( such as interpolating the lookup directly on an array ).

This is actually an assigned issue for improvement SERVER-22881, so with some luck this would hit the next release or one soon after.

As a design principle, your current structure is neither good or bad, but just subject to overheads when creating any "join". As such, the basic standing principle of MongoDB in inception applies, where if you "can" live with the data "pre-joined" in the one collection, then it is best to do so.

The one other thing that can be said of $lookup as a general principle, is that the intent of the "join" here is to work the other way around than shown here. So rather than keeping the "related ids" of the other documents within the "parent" document, the general principle that works best is where the "related documents" contain a reference to the "parent".

So $lookup can be said to "work best" with a "relation design" that is the reverse of how something like mongoose .populate() performs it's client side joins. By idendifying the "one" within each "many" instead, then you just pull in the related items without needing to $unwind the array first.

//Note: if you have access to Java5+, 
//use StringBuilder in preference to StringBuffer.  
//All that has to be replaced is the class name.  
//StringBuffer will work in Java 1.4, though.

appendWithDelimiter( StringBuffer buffer, String addition, 
    String delimiter ) {
    if ( buffer.length() == 0) {
        buffer.append(addition);
    } else {
        buffer.append(delimiter);
        buffer.append(addition);
    }
}


StringBuffer parameterBuffer = new StringBuffer();
if ( condition ) { 
    appendWithDelimiter(parameterBuffer, "elementName", "," );
}
if ( anotherCondition ) {
    appendWithDelimiter(parameterBuffer, "anotherElementName", "," );
}

//Finally, to return a string representation, call toString() when returning.
return parameterBuffer.toString(); 

public static int GCD(int x, int y) {   
    int r;
    while (y!=0) {
        r = x%y;
        x = y;
        y = r;
    }
    return x;
}

Had the same problem, regenerating application key helped - php artisan key:generate

The final keyword is used to declare constants.

final int FILE_TYPE = 3;

The finally keyword is used in a try catch statement to specify a block of code to execute regardless of thrown exceptions.

try
{
  //stuff
}
catch(Exception e)
{
  //do stuff
}
finally
{
  //this is always run
}

And finally (haha), finalize im not entirely sure is a keyword, but there is a finalize() function in the Object class.

If you are doing development in Java 8 and Hibernate 5 Or Spring Boot JPA then use following annotation directly in your Entity class. Hibernate gets the current timestamp from the VM and will insert date and time in database.

public class YourEntity {
 
    @Id
    @GeneratedValue
    private Long id;
 
    private String name;
 
    @CreationTimestamp
    private LocalDateTime createdDateTime;
 
    @UpdateTimestamp
    private LocalDateTime updatedDateTime;
 
    …
}

You could also change the repository name you wish to push to in the REPOHOME/.git/config file

(where REPOHOME is the path to your local clone of the repository).

If you want to use them like that, define the function with the variable names as normal:

def my_function(school, standard, city, name):
    schoolName  = school
    cityName = city
    standardName = standard
    studentName = name

Now you can use ** when you call the function:

data = {'school':'DAV', 'standard': '7', 'name': 'abc', 'city': 'delhi'}

my_function(**data)

and it will work as you want.

P.S. Don't use reserved words such as class.(e.g., use klass instead)

I'm just adding another bit of info for others searching for a Scroll-To capability in React. I had tied several libraries for doing Scroll-To for my app, and none worked from my use case until I found react-scrollchor, so I thought I'd pass it on. https://github.com/bySabi/react-scrollchor

You are getting an HTTP 400 (Bad Request) error because there is a space in your URL. If you fix it (before the zoom parameter), you will get an HTTP 400 error (Unauthorized). Maybe you need some HTTP header to identify your download as a recognised browser (use the "User-Agent" header) or additional authentication parameter.

For the User-Agent example, then use the ImageIO.read(InputStream) using the connection inputstream:

URLConnection connection = url.openConnection();
connection.setRequestProperty("User-Agent", "xxxxxx");

Use whatever needed for xxxxxx

Just throwing another solution in the mix...

Try jq, a lightweight and flexible command-line JSON processor:

jq length /tmp/test.json

Prints the length of the array of objects.

Probably there is a table, which stores the friend <-> user relation, say "frnd_list", having fields 'user_id','frnd_id'.

Whenever a user adds another user as a friend, two new rows are created.

For instance, suppose my id is 'deep9c' and I add a user having id 'akash3b' as my friend, then two new rows are created in table "frnd_list" with values ('deep9c','akash3b') and ('akash3b','deep9c').

Now when showing the friends-list to a particular user, a simple sql would do that: "select frnd_id from frnd_list where user_id=" where is the id of the logged-in user (stored as a session-attribute).

The equivalent JPA mapping for the DDL ON DELETE CASCADE is cascade=CascadeType.REMOVE. Orphan removal means that dependent entities are removed when the relationship to their "parent" entity is destroyed. For example if a child is removed from a @OneToMany relationship without explicitely removing it in the entity manager.

The form tag needs some attributes set:

1. action: The URL that the form data is sent to on submit. Generate it with url_for. It can be omitted if the same URL handles showing the form and processing the data.
2. method="post": Submits the data as form data with the POST method. If not given, or explicitly set to get, the data is submitted in the query string (request.args) with the GET method instead.
3. enctype="multipart/form-data": When the form contains file inputs, it must have this encoding set, otherwise the files will not be uploaded and Flask won't see them.

The input tag needs a name parameter.

Add a view to handle the submitted data, which is in request.form under the same key as the input's name. Any file inputs will be in request.files.

@app.route('/handle_data', methods=['POST'])
def handle_data():
    projectpath = request.form['projectFilepath']
    # your code
    # return a response

Set the form's action to that view's URL using url_for:

<form action="{{ url_for('handle_data') }}" method="post">
    <input type="text" name="projectFilepath">
    <input type="submit">
</form>

Intro: You Have 5 Solutions Available

The original poster states:

I accidentally committed an unwanted file...to my repository several commits ago...I want to completely delete the file from the repository history.

Is it possible to rewrite the change history such that filename.orig was never added to the repository in the first place?

There are many different ways to remove the history of a file completely from git:

1. Amending commits.
2. Hard resets (possibly plus a rebase).
3. Non-interactive rebase.
4. Interactive rebases.
5. Filtering branches.

In the case of the original poster, amending the commit isn't really an option by itself, since he made several additional commits afterwards, but for the sake of completeness, I will also explain how to do it, for anyone else who justs wants to amend their previous commit.

Note that all of these solutions involve altering/re-writing history/commits in one way another, so anyone with old copies of the commits will have to do extra work to re-sync their history with the new history.

Solution 1: Amending Commits

If you accidentally made a change (such as adding a file) in your previous commit, and you don't want the history of that change to exist anymore, then you can simply amend the previous commit to remove the file from it:

git rm <file>
git commit --amend --no-edit

Solution 2: Hard Reset (Possibly Plus a Rebase)

Like solution #1, if you just want to get rid of your previous commit, then you also have the option of simply doing a hard reset to its parent:

git reset --hard HEAD^

That command will hard-reset your branch to the previous 1^st parent commit.

However, if, like the original poster, you've made several commits after the commit you want to undo the change to, you can still use hard resets to modify it, but doing so also involves using a rebase. Here are the steps that you can use to amend a commit further back in history:

# Create a new branch at the commit you want to amend
git checkout -b temp <commit>

# Amend the commit
git rm <file>
git commit --amend --no-edit

# Rebase your previous branch onto this new commit, starting from the old-commit
git rebase --preserve-merges --onto temp <old-commit> master

# Verify your changes
git diff master@{1}

Solution 3: Non-interactive Rebase

This will work if you just want to remove a commit from history entirely:

# Create a new branch at the parent-commit of the commit that you want to remove
git branch temp <parent-commit>

# Rebase onto the parent-commit, starting from the commit-to-remove
git rebase --preserve-merges --onto temp <commit-to-remove> master

# Or use `-p` insteda of the longer `--preserve-merges`
git rebase -p --onto temp <commit-to-remove> master

# Verify your changes
git diff master@{1}

Solution 4: Interactive Rebases

This solution will allow you to accomplish the same things as solutions #2 and #3, i.e. modify or remove commits further back in history than your immediately previous commit, so which solution you choose to use is sort of up to you. Interactive rebases are not well-suited to rebasing hundreds of commits, for performance reasons, so I would use non-interactive rebases or the filter branch solution (see below) in those sort of situations.

To begin the interactive rebase, use the following:

git rebase --interactive <commit-to-amend-or-remove>~

# Or `-i` instead of the longer `--interactive`
git rebase -i <commit-to-amend-or-remove>~

This will cause git to rewind the commit history back to the parent of the commit that you want to modify or remove. It will then present you a list of the rewound commits in reverse order in whatever editor git is set to use (this is Vim by default):

pick 00ddaac Add symlinks for executables
pick 03fa071 Set `push.default` to `simple`
pick 7668f34 Modify Bash config to use Homebrew recommended PATH
pick 475593a Add global .gitignore file for OS X
pick 1b7f496 Add alias for Dr Java to Bash config (OS X)

The commit that you want to modify or remove will be at the top of this list. To remove it, simply delete its line in the list. Otherwise, replace "pick" with "edit" on the 1^st line, like so:

edit 00ddaac Add symlinks for executables
pick 03fa071 Set `push.default` to `simple`

Next, enter git rebase --continue. If you chose to remove the commit entirely, then that it all you need to do (other than verification, see final step for this solution). If, on the other hand, you wanted to modify the commit, then git will reapply the commit and then pause the rebase.

Stopped at 00ddaacab0a85d9989217dd9fe9e1b317ed069ac... Add symlinks
You can amend the commit now, with

        git commit --amend

Once you are satisfied with your changes, run

        git rebase --continue

At this point, you can remove the file and amend the commit, then continue the rebase:

git rm <file>
git commit --amend --no-edit
git rebase --continue

That's it. As a final step, whether you modified the commit or removed it completely, it's always a good idea to verify that no other unexpected changes were made to your branch by diffing it with its state before the rebase:

git diff master@{1}

Solution 5: Filtering Branches

Finally, this solution is best if you want to completely wipe out all traces of a file's existence from history, and none of the other solutions are quite up to the task.

git filter-branch --index-filter \
'git rm --cached --ignore-unmatch <file>'

That will remove <file> from all commits, starting from the root commit. If instead you just want to rewrite the commit range HEAD~5..HEAD, then you can pass that as an additional argument to filter-branch, as pointed out in this answer:

git filter-branch --index-filter \
'git rm --cached --ignore-unmatch <file>' HEAD~5..HEAD

Again, after the filter-branch is complete, it's usually a good idea to verify that there are no other unexpected changes by diffing your branch with its previous state before the filtering operation:

git diff master@{1}

Filter-Branch Alternative: BFG Repo Cleaner

I've heard that the BFG Repo Cleaner tool runs faster than git filter-branch, so you might want to check that out as an option too. It's even mentioned officially in the filter-branch documentation as a viable alternative:

git-filter-branch allows you to make complex shell-scripted rewrites of your Git history, but you probably don’t need this flexibility if you’re simply removing unwanted data like large files or passwords. For those operations you may want to consider The BFG Repo-Cleaner, a JVM-based alternative to git-filter-branch, typically at least 10-50x faster for those use-cases, and with quite different characteristics:

• Any particular version of a file is cleaned exactly once. The BFG, unlike git-filter-branch, does not give you the opportunity to handle a file differently based on where or when it was committed within your history. This constraint gives the core performance benefit of The BFG, and is well-suited to the task of cleansing bad data - you don’t care where the bad data is, you just want it gone.

• By default The BFG takes full advantage of multi-core machines, cleansing commit file-trees in parallel. git-filter-branch cleans commits sequentially (ie in a single-threaded manner), though it is possible to write filters that include their own parallellism, in the scripts executed against each commit.

• The command options are much more restrictive than git-filter branch, and dedicated just to the tasks of removing unwanted data- e.g: --strip-blobs-bigger-than 1M.

Additional Resources

1. Pro Git § 6.4 Git Tools - Rewriting History.
2. git-filter-branch(1) Manual Page.
3. git-commit(1) Manual Page.
4. git-reset(1) Manual Page.
5. git-rebase(1) Manual Page.
6. The BFG Repo Cleaner (see also this answer from the creator himself).

This might be what you are looking for:

yourStream
    .filter(/* your criteria */)
    .findFirst()
    .get();

And better, if there's a possibility of matching no element, in which case get() will throw a NPE. So use:

yourStream
    .filter(/* your criteria */)
    .findFirst()
    .orElse(null); /* You could also create a default object here */

public static void main(String[] args) {
    class Stop {
        private final String stationName;
        private final int    passengerCount;

        Stop(final String stationName, final int passengerCount) {
            this.stationName    = stationName;
            this.passengerCount = passengerCount;
        }
    }

    List<Stop> stops = new LinkedList<>();

    stops.add(new Stop("Station1", 250));
    stops.add(new Stop("Station2", 275));
    stops.add(new Stop("Station3", 390));
    stops.add(new Stop("Station2", 210));
    stops.add(new Stop("Station1", 190));

    Stop firstStopAtStation1 = stops.stream()
            .filter(e -> e.stationName.equals("Station1"))
            .findFirst()
            .orElse(null);

    System.out.printf("At the first stop at Station1 there were %d passengers in the train.", firstStopAtStation1.passengerCount);
}

Output is:

At the first stop at Station1 there were 250 passengers in the train.

If you want recursive to include subprojects, you can always write it yourself:

Paste into the top-level build.gradle:

task allDeps << {
    println "All Dependencies:"
    allprojects.each { p ->
        println()
        println " $p.name ".center( 60, '*' )
        println()
        p.configurations.all.findAll { !it.allDependencies.empty }.each { c ->
            println " ${c.name} ".center( 60, '-' )
            c.allDependencies.each { dep ->
                println "$dep.group:$dep.name:$dep.version"
            }
            println "-" * 60
        }
    }
}

Run with:

gradle allDeps

print("My type is %s" % type(someObject)) # the type in python

or...

print("My type is %s" % type(someObject).__name__) # the object's type (the class you defined)

If you want to replace the entire Fragment1 with Fragment2, you need to do it inside MainActivity, by using:

Fragment2 fragment2 = new Fragment2();
FragmentManager fragmentManager = getFragmentManager();
FragmentTransaction fragmentTransaction = fragmentManager.beginTransaction();
fragmentTransaction.replace(android.R.id.content, fragment2);
fragmentTransaction.commit();

Just put this code inside a method in MainActivity, then call that method from Fragment1.

I made a simple class that makes ripple buttons, i never needed it in the end so its not the best, But here it is:

import android.content.Context;
import android.graphics.Canvas;
import android.graphics.Color;
import android.graphics.Paint;
import android.os.Handler;
import android.support.annotation.NonNull;
import android.util.AttributeSet;
import android.view.MotionEvent;
import android.widget.Button;

public class RippleView extends Button
{
    private float duration = 250;

    private float speed = 1;
    private float radius = 0;
    private Paint paint = new Paint();
    private float endRadius = 0;
    private float rippleX = 0;
    private float rippleY = 0;
    private int width = 0;
    private int height = 0;
    private OnClickListener clickListener = null;
    private Handler handler;
    private int touchAction;
    private RippleView thisRippleView = this;

    public RippleView(Context context)
    {
        this(context, null, 0);
    }

    public RippleView(Context context, AttributeSet attrs)
    {
        this(context, attrs, 0);
    }

    public RippleView(Context context, AttributeSet attrs, int defStyleAttr)
    {
        super(context, attrs, defStyleAttr);
        init();
    }

    private void init()
    {
        if (isInEditMode())
            return;

        handler = new Handler();
        paint.setStyle(Paint.Style.FILL);
        paint.setColor(Color.WHITE);
        paint.setAntiAlias(true);
    }

    @Override
    protected void onSizeChanged(int w, int h, int oldw, int oldh)
    {
        super.onSizeChanged(w, h, oldw, oldh);
        width = w;
        height = h;
    }

    @Override
    protected void onDraw(@NonNull Canvas canvas)
    {
        super.onDraw(canvas);

        if(radius > 0 && radius < endRadius)
        {
            canvas.drawCircle(rippleX, rippleY, radius, paint);
            if(touchAction == MotionEvent.ACTION_UP)
                invalidate();
        }
    }

    @Override
    public boolean onTouchEvent(@NonNull MotionEvent event)
    {
        rippleX = event.getX();
        rippleY = event.getY();

        switch(event.getAction())
        {
            case MotionEvent.ACTION_UP:
            {
                getParent().requestDisallowInterceptTouchEvent(false);
                touchAction = MotionEvent.ACTION_UP;

                radius = 1;
                endRadius = Math.max(Math.max(Math.max(width - rippleX, rippleX), rippleY), height - rippleY);
                speed = endRadius / duration * 10;
                handler.postDelayed(new Runnable()
                {
                    @Override
                    public void run()
                    {
                        if(radius < endRadius)
                        {
                            radius += speed;
                            paint.setAlpha(90 - (int) (radius / endRadius * 90));
                            handler.postDelayed(this, 1);
                        }
                        else
                        {
                            clickListener.onClick(thisRippleView);
                        }
                    }
                }, 10);
                invalidate();
                break;
            }
            case MotionEvent.ACTION_CANCEL:
            {
                getParent().requestDisallowInterceptTouchEvent(false);
                touchAction = MotionEvent.ACTION_CANCEL;
                radius = 0;
                invalidate();
                break;
            }
            case MotionEvent.ACTION_DOWN:
            {
                getParent().requestDisallowInterceptTouchEvent(true);
                touchAction = MotionEvent.ACTION_UP;
                endRadius = Math.max(Math.max(Math.max(width - rippleX, rippleX), rippleY), height - rippleY);
                paint.setAlpha(90);
                radius = endRadius/4;
                invalidate();
                return true;
            }
            case MotionEvent.ACTION_MOVE:
            {
                if(rippleX < 0 || rippleX > width || rippleY < 0 || rippleY > height)
                {
                    getParent().requestDisallowInterceptTouchEvent(false);
                    touchAction = MotionEvent.ACTION_CANCEL;
                    radius = 0;
                    invalidate();
                    break;
                }
                else
                {
                    touchAction = MotionEvent.ACTION_MOVE;
                    invalidate();
                    return true;
                }
            }
        }

        return false;
    }

    @Override
    public void setOnClickListener(OnClickListener l)
    {
        clickListener = l;
    }
}

EDIT

Since many people are looking for something like this i made a class that can make other views have the ripple effect:

import android.content.Context;
import android.graphics.Canvas;
import android.graphics.Paint;
import android.os.Handler;
import android.support.annotation.NonNull;
import android.util.AttributeSet;
import android.view.MotionEvent;
import android.view.View;
import android.view.ViewGroup;
import android.widget.FrameLayout;

public class RippleViewCreator extends FrameLayout
{
    private float duration = 150;
    private int frameRate = 15;

    private float speed = 1;
    private float radius = 0;
    private Paint paint = new Paint();
    private float endRadius = 0;
    private float rippleX = 0;
    private float rippleY = 0;
    private int width = 0;
    private int height = 0;
    private Handler handler = new Handler();
    private int touchAction;

    public RippleViewCreator(Context context)
    {
        this(context, null, 0);
    }

    public RippleViewCreator(Context context, AttributeSet attrs)
    {
        this(context, attrs, 0);
    }

    public RippleViewCreator(Context context, AttributeSet attrs, int defStyleAttr)
    {
        super(context, attrs, defStyleAttr);
        init();
    }

    private void init()
    {
        if (isInEditMode())
            return;

        paint.setStyle(Paint.Style.FILL);
        paint.setColor(getResources().getColor(R.color.control_highlight_color));
        paint.setAntiAlias(true);

        setWillNotDraw(true);
        setDrawingCacheEnabled(true);
        setClickable(true);
    }

    public static void addRippleToView(View v)
    {
        ViewGroup parent = (ViewGroup)v.getParent();
        int index = -1;
        if(parent != null)
        {
            index = parent.indexOfChild(v);
            parent.removeView(v);
        }
        RippleViewCreator rippleViewCreator = new RippleViewCreator(v.getContext());
        rippleViewCreator.setLayoutParams(v.getLayoutParams());
        if(index == -1)
            parent.addView(rippleViewCreator, index);
        else
            parent.addView(rippleViewCreator);
        rippleViewCreator.addView(v);
    }

    @Override
    protected void onSizeChanged(int w, int h, int oldw, int oldh)
    {
        super.onSizeChanged(w, h, oldw, oldh);
        width = w;
        height = h;
    }

    @Override
    protected void dispatchDraw(@NonNull Canvas canvas)
    {
        super.dispatchDraw(canvas);

        if(radius > 0 && radius < endRadius)
        {
            canvas.drawCircle(rippleX, rippleY, radius, paint);
            if(touchAction == MotionEvent.ACTION_UP)
                invalidate();
        }
    }

    @Override
    public boolean onInterceptTouchEvent(MotionEvent event)
    {
        return true;
    }

    @Override
    public boolean onTouchEvent(@NonNull MotionEvent event)
    {
        rippleX = event.getX();
        rippleY = event.getY();

        touchAction = event.getAction();
        switch(event.getAction())
        {
            case MotionEvent.ACTION_UP:
            {
                getParent().requestDisallowInterceptTouchEvent(false);

                radius = 1;
                endRadius = Math.max(Math.max(Math.max(width - rippleX, rippleX), rippleY), height - rippleY);
                speed = endRadius / duration * frameRate;
                handler.postDelayed(new Runnable()
                {
                    @Override
                    public void run()
                    {
                        if(radius < endRadius)
                        {
                            radius += speed;
                            paint.setAlpha(90 - (int) (radius / endRadius * 90));
                            handler.postDelayed(this, frameRate);
                        }
                        else if(getChildAt(0) != null)
                        {
                            getChildAt(0).performClick();
                        }
                    }
                }, frameRate);
                break;
            }
            case MotionEvent.ACTION_CANCEL:
            {
                getParent().requestDisallowInterceptTouchEvent(false);
                break;
            }
            case MotionEvent.ACTION_DOWN:
            {
                getParent().requestDisallowInterceptTouchEvent(true);
                endRadius = Math.max(Math.max(Math.max(width - rippleX, rippleX), rippleY), height - rippleY);
                paint.setAlpha(90);
                radius = endRadius/3;
                invalidate();
                return true;
            }
            case MotionEvent.ACTION_MOVE:
            {
                if(rippleX < 0 || rippleX > width || rippleY < 0 || rippleY > height)
                {
                    getParent().requestDisallowInterceptTouchEvent(false);
                    touchAction = MotionEvent.ACTION_CANCEL;
                    break;
                }
                else
                {
                    invalidate();
                    return true;
                }
            }
        }
        invalidate();
        return false;
    }

    @Override
    public final void addView(@NonNull View child, int index, ViewGroup.LayoutParams params)
    {
        //limit one view
        if (getChildCount() > 0)
        {
            throw new IllegalStateException(this.getClass().toString()+" can only have one child.");
        }
        super.addView(child, index, params);
    }
}

I would use a composite (multi-column) key.

CREATE TABLE INFO (
    t1ID INT,
    t2ID INT,
    PRIMARY KEY (t1ID, t2ID)
) 

This way you can have t1ID and t2ID as foreign keys pointing to their respective tables as well.

After install everything and start the service, try close your terminal and open it again, then try pull your image

Edit

I also had this issue again, if the solution above won't worked, try this solution that is the command bellow

sudo mv /var/lib/docker/network/files/ /tmp/dn-bak

Considerations

If command above works you probably are with network docker problems, anyway this resolves it, to confirm that, see the log with the command bellow

tail -5f /var/log/upstart/docker.log

If the output have something like that

FATA[0000] Error starting daemon: Error initializing network controller: could not delete the default bridge network: network bridge has active endpoints 
/var/run/docker.sock is up

You really are with network problems, however I do not know yet if the next time you restart(update, 2 months no issue again) your OS will get this problem again and if it is a bug or installation problem

My docker version

Client:
 Version:      1.9.1
 API version:  1.21
 Go version:   go1.4.2
 Git commit:   a34a1d5
 Built:        Fri Nov 20 13:12:04 UTC 2015
 OS/Arch:      linux/amd64

Server:
 Version:      1.9.1
 API version:  1.21
 Go version:   go1.4.2
 Git commit:   a34a1d5
 Built:        Fri Nov 20 13:12:04 UTC 2015
 OS/Arch:      linux/amd64

Use:

>>> import datetime
>>> datetime.datetime.now()
datetime.datetime(2009, 1, 6, 15, 8, 24, 78915)

>>> print(datetime.datetime.now())
2009-01-06 15:08:24.789150

And just the time:

>>> datetime.datetime.now().time()
datetime.time(15, 8, 24, 78915)

>>> print(datetime.datetime.now().time())
15:08:24.789150

See the documentation for more information.

To save typing, you can import the datetime object from the datetime module:

>>> from datetime import datetime

Then remove the leading datetime. from all of the above.

Have a look at the example in this link :

http://docs.angularjs.org/api/ngSanitize.$sanitize

Basically, angular has a directive to insert html into pages. In your case you can insert the html using the ng-bind-html directive like so :

If you already have done all this :

// My magic HTML string function.
function htmlString (str) {
    return "<h1>" + str + "</h1>";
}

function Ctrl ($scope) {
  var str = "HELLO!";
  $scope.htmlString = htmlString(str);
}
Ctrl.$inject = ["$scope"];

Then in your html within the scope of that controller, you could

<div ng-bind-html="htmlString"></div>

This is also helpful when exposing a public interface. If you have a method like this,

public ArrayList getList();

Then you decide to change it to,

public LinkedList getList();

Anyone who was doing ArrayList list = yourClass.getList() will need to change their code. On the other hand, if you do,

public List getList();

Changing the implementation doesn't change anything for the users of your API.

Introduction

Object-Relational Mapping (ORM) is a technique that lets you query and manipulate data from a database using an object-oriented paradigm. When talking about ORM, most people are referring to a library that implements the Object-Relational Mapping technique, hence the phrase "an ORM".

An ORM library is a completely ordinary library written in your language of choice that encapsulates the code needed to manipulate the data, so you don't use SQL anymore; you interact directly with an object in the same language you're using.

For example, here is a completely imaginary case with a pseudo language:

You have a book class, you want to retrieve all the books of which the author is "Linus". Manually, you would do something like that:

book_list = new List();
sql = "SELECT book FROM library WHERE author = 'Linus'";
data = query(sql); // I over simplify ...
while (row = data.next())
{
     book = new Book();
     book.setAuthor(row.get('author');
     book_list.add(book);
}

With an ORM library, it would look like this:

book_list = BookTable.query(author="Linus");

The mechanical part is taken care of automatically via the ORM library.

Pros and Cons

Using ORM saves a lot of time because:

• DRY: You write your data model in only one place, and it's easier to update, maintain, and reuse the code.
• A lot of stuff is done automatically, from database handling to I18N.
• It forces you to write MVC code, which, in the end, makes your code a little cleaner.
• You don't have to write poorly-formed SQL (most Web programmers really suck at it, because SQL is treated like a "sub" language, when in reality it's a very powerful and complex one).
• Sanitizing; using prepared statements or transactions are as easy as calling a method.

Using an ORM library is more flexible because:

• It fits in your natural way of coding (it's your language!).
• It abstracts the DB system, so you can change it whenever you want.
• The model is weakly bound to the rest of the application, so you can change it or use it anywhere else.
• It lets you use OOP goodness like data inheritance without a headache.

But ORM can be a pain:

• You have to learn it, and ORM libraries are not lightweight tools;
• You have to set it up. Same problem.
• Performance is OK for usual queries, but a SQL master will always do better with his own SQL for big projects.
• It abstracts the DB. While it's OK if you know what's happening behind the scene, it's a trap for new programmers that can write very greedy statements, like a heavy hit in a for loop.

How to learn about ORM?

Well, use one. Whichever ORM library you choose, they all use the same principles. There are a lot of ORM libraries around here:

• Java: Hibernate.
• PHP: Propel or Doctrine (I prefer the last one).
• Python: the Django ORM or SQLAlchemy (My favorite ORM library ever).
• C#: NHibernate or Entity Framework

If you want to try an ORM library in Web programming, you'd be better off using an entire framework stack like:

• Symfony (PHP, using Propel or Doctrine).
• Django (Python, using a internal ORM).

Do not try to write your own ORM, unless you are trying to learn something. This is a gigantic piece of work, and the old ones took a lot of time and work before they became reliable.

I think you are trying to toggle the disabled state, in witch case you should use this (from this question):

$(".inputDisabled").prop('disabled', function (_, val) { return ! val; });

Here is a working fiddle.

The problem is this block:

using (var sr = new StreamReader(ms))
{
    Console.WriteLine(sr.ReadToEnd());                        
}

When the StreamReader is closed (after leaving the using), it closes it's underlying stream as well, so now the MemoryStream is closed. When the StreamWriter gets closed, it tries to flush everything to the MemoryStream, but it is closed.

You should consider not putting the StreamReader in a using block.

if your text has newlines, use nl2br php function:

<?php
$string = "foo"."\n"."bar";
echo nl2br($string);
?>

This should look good in browser

After some searching on the Internet I found that it is in fact very much possible to call a custom method passing the DataBinder.Eval value.

The custom method can be written in the code behind file, but has to be declared public or protected. In my question above, I had mentioned that I tried to write the custom method in the code behind but was getting a run time error. The reason for this was that I had declared the method to be private.

So, in summary the following is a good way to use DataBinder.Eval value to get your desired output:

default.aspx

<asp:Label ID="lblNewsDate" runat="server" Text='<%# GetDateInHomepageFormat(DataBinder.Eval(Container.DataItem, "publishedDate")) )%>'></asp:Label>

default.aspx.cs code:

public partial class _Default : System.Web.UI.Page
{

    protected string GetDateInHomepageFormat(DateTime d)
    {

        string retValue = "";

        // Do all processing required and return value

        return retValue;
    }
}

Hope this helps others as well.

Instead of changing the ticks, why not change the units instead? Make a separate array X of x-values whose units are in nm. This way, when you plot the data it is already in the correct format! Just make sure you add a xlabel to indicate the units (which should always be done anyways).

from pylab import *

# Generate random test data in your range
N = 200
epsilon = 10**(-9.0)
X = epsilon*(50*random(N) + 1)
Y = random(N)

# X2 now has the "units" of nanometers by scaling X
X2 = (1/epsilon) * X

subplot(121)
scatter(X,Y)
xlim(epsilon,50*epsilon)
xlabel("meters")

subplot(122)
scatter(X2,Y)
xlim(1, 50)
xlabel("nanometers")

show()

I confirm like the comment from JohnH, never use column types in the your object names! It's confusing. And use brackets if possible.

Try this:

ALTER TABLE [TableName]
ADD  DEFAULT (getutcdate()) FOR [Date]; 

I found the same error today. I have tried the "Clear all Plots" button, but it was giving me the same error. Then this trick worked for me, Try to increase the plot area by dragging. It will help you for sure.

CAST both fields to datatype DATE and you can use a minus:

(CAST(MAX(joindate) AS date) - CAST(MIN(joindate) AS date)) as DateDifference

Test case:

SELECT  (CAST(MAX(joindate) AS date) - CAST(MIN(joindate) AS date)) as DateDifference
FROM 
    generate_series('2014-01-01'::timestamp, '2014-02-01'::timestamp, interval '1 hour') g(joindate);

Result: 31

Or create a function datediff():

CREATE OR REPLACE FUNCTION datediff(timestamp, timestamp) 
RETURNS int 
LANGUAGE sql 
AS
$$
    SELECT CAST($1 AS date) - CAST($2 AS date) as DateDifference
$$;

Another way of doing this is to use ravel

model = forest.fit(train_fold, train_y.values.reshape(-1,))

In my case I have two activities. In the second activity I forgot to put super on the onCreate method.

super.onCreate(savedInstanceState);

This is another functional lib with which you may use map: http://code.google.com/p/totallylazy/

sequence(1, 2).map(toString); // lazily returns "1", "2"

This is because of ng-include which creates a new child scope, so $scope.lineText isn’t changed. I think that this refers to the current scope, so this.lineText should be set.

try this code :

$user= shell_exec("echo %username%"); 
    echo "user : $user";

you get your windows(AD) username in php

final DateTimeFormatter formatter = DateTimeFormatter.ofPattern("dd-MM-yyyy");
LocalDate localDate = LocalDate.now();
System.out.println("Formatted Date: " + formatter.format(localDate));

Java 8 LocalDate

Try this as the above suggestions didn't work for me when I wanted to do this for a TextView:

TextView.setScrollbarFadingEnabled(false);

Good Luck.

Here's a concise version that works with class method callbacks and with regular function callbacks. In this example, to show how parameters are handled, the callback function takes two parameters: bool and int.

class Caller {
  template<class T> void addCallback(T* const object, void(T::* const mf)(bool,int))
  {
    using namespace std::placeholders; 
    callbacks_.emplace_back(std::bind(mf, object, _1, _2));
  }
  void addCallback(void(* const fun)(bool,int)) 
  {
    callbacks_.emplace_back(fun);
  }
  void callCallbacks(bool firstval, int secondval) 
  {
    for (const auto& cb : callbacks_)
      cb(firstval, secondval);
  }
private:
  std::vector<std::function<void(bool,int)>> callbacks_;
}

class Callee {
  void MyFunction(bool,int);
}

//then, somewhere in Callee, to add the callback, given a pointer to Caller `ptr`

ptr->addCallback(this, &Callee::MyFunction);

//or to add a call back to a regular function
ptr->addCallback(&MyRegularFunction);

This restricts the C++11-specific code to the addCallback method and private data in class Caller. To me, at least, this minimizes the chance of making mistakes when implementing it.

If you are using Angular.js then functions imbedded into HTML, such as onclick="function()" or onchange="function()". They will not register. You need to make the change events in the javascript. Such as:

$('#exampleBtn').click(function() {
  function();
});

Map<Integer, Point2D> hm = new HashMap<Integer, Point2D>();

Although this has an accepted answer, it is not going to effectively work in all cases. For example, I test date validation on a form field I have using the date "10/38/2013", and I got a valid DateObject returned, but the date was what PHP call "overflowed", so that "10/38/2013" becomes "11/07/2013". Makes sense, but should we just accept the reformed date, or force users to input the correct date? For those of us who are form validation nazis, We can use this dirty fix: https://stackoverflow.com/a/10120725/486863 and just return false when the object throws this warning.

The other workaround would be to match the string date to the formatted one, and compare the two for equal value. This seems just as messy. Oh well. Such is the nature of PHP dev.

I think you face three problems:

1. understanding the FileChooser
2. writing/reading files
3. understanding extensions and file formats

ad 1. Are you sure you've connected the FileChooser to a correct panel/container? I'd go for a simple tutorial on this matter and see if it works. That's the best way to learn - by making small but large enough steps forward. Breaking down an issue into such parts might be tricky sometimes ;)

ad. 2. After you save or open the file you should have methods to write or read the file. And again there are pretty neat examples on this matter and it's easy to understand topic.

ad. 3. There's a difference between a file having extension and file format. You can change the format of any file to anything you want but that doesn't affect it's contents. It might just render the file unreadable for the application associated with such extension. TXT files are easy - you read what you write. XLS, DOCX etc. require more work and usually framework is the best way to tackle these.

Outputs the result of the last executed unix command

0 implies true
1 implies false

I am using this method to avoid the popup blocker in my React code. it will work in all other javascript codes also.

When you are making an async call on click event, just open a blank window first and then write the URL in that later when an async call will complete.

const popupWindow = window.open("", "_blank");
popupWindow.document.write("<div>Loading, Plesae wait...</div>")

on async call's success, write the following

popupWindow.document.write(resonse.url)

I've created a custom PagerAdapters library to change items in PagerAdapters dynamically.

You can change items dynamically like following by using this library.

@Override
protected void onCreate(Bundle savedInstanceState) {
        /** ... **/
    adapter = new MyStatePagerAdapter(getSupportFragmentManager()
                            , new String[]{"1", "2", "3"});
    ((ViewPager)findViewById(R.id.view_pager)).setAdapter(adapter);
     adapter.add("4");
     adapter.remove(0);
}

class MyPagerAdapter extends ArrayViewPagerAdapter<String> {

    public MyPagerAdapter(String[] data) {
        super(data);
    }

    @Override
    public View getView(LayoutInflater inflater, ViewGroup container, String item, int position) {
        View v = inflater.inflate(R.layout.item_page, container, false);
        ((TextView) v.findViewById(R.id.item_txt)).setText(item);
        return v;
    }
}

Thils library also support pages created by Fragments.

new Date(date) === 'Invalid Date' only works in Firefox and Chrome. IE8 (the one I have on my machine for testing purposes) gives NaN.

As was stated to the accepted answer, Date.parse(date) will also work for numbers. So to get around that, you could also check that it is not a number (if that's something you want to confirm).

var parsedDate = Date.parse(date);

// You want to check again for !isNaN(parsedDate) here because Dates can be converted
// to numbers, but a failed Date parse will not.
if (isNaN(date) && !isNaN(parsedDate)) {
    /* do your work */
}

Even as it got the most votes, one usually can't take System.Collections.Concurrent.ConcurrentBag<T> as a thread-safe replacement for System.Collections.Generic.List<T> as it is (Radek Stromský already pointed it out) not ordered.

But there is a class called System.Collections.Generic.SynchronizedCollection<T> that is already since .NET 3.0 part of the framework, but it is that well hidden in a location where one does not expect it that it is little known and probably you have never ever stumbled over it (at least I never did).

SynchronizedCollection<T> is compiled into assembly System.ServiceModel.dll (which is part of the client profile but not of the portable class library).

The reason for using dictionaries in the first place is performance. Although it is correct that you can use named vectors and lists for the task the issue is that they are becoming quite slow and memory hungry with more data.

Yet what many people don't know is that R has indeed an inbuilt dictionary data structure: environments with the option hash = TRUE

See the following example for how to make it work:

# vectorize assign, get and exists for convenience
assign_hash <- Vectorize(assign, vectorize.args = c("x", "value"))
get_hash <- Vectorize(get, vectorize.args = "x")
exists_hash <- Vectorize(exists, vectorize.args = "x")

# keys and values
key<- c("tic", "tac", "toe")
value <- c(1, 22, 333)

# initialize hash
hash = new.env(hash = TRUE, parent = emptyenv(), size = 100L)
# assign values to keys
assign_hash(key, value, hash)
## tic tac toe 
##   1  22 333
# get values for keys
get_hash(c("toe", "tic"), hash)
## toe tic 
## 333   1
# alternatively:
mget(c("toe", "tic"), hash)
## $toe
## [1] 333
## 
## $tic
## [1] 1
# show all keys
ls(hash)
## [1] "tac" "tic" "toe"
# show all keys with values
get_hash(ls(hash), hash)
## tac tic toe 
##  22   1 333
# remove key-value pairs
rm(list = c("toe", "tic"), envir = hash)
get_hash(ls(hash), hash)
## tac 
##  22
# check if keys are in hash
exists_hash(c("tac", "nothere"), hash)
##     tac nothere 
##    TRUE   FALSE
# for single keys this is also possible:
# show value for single key
hash[["tac"]]
## [1] 22
# create new key-value pair
hash[["test"]] <- 1234
get_hash(ls(hash), hash)
##  tac test 
##   22 1234
# update single value
hash[["test"]] <- 54321
get_hash(ls(hash), hash)
##   tac  test 
##    22 54321

Edit: On the basis of this answer I wrote a blog post with some more context: http://blog.ephorie.de/hash-me-if-you-can

We can do something like this

DateTime date_temp_from = DateTime.Parse(from.Value); //from.value" is input by user (dd/MM/yyyy)
DateTime date_temp_to = DateTime.Parse(to.Value); //to.value" is input by user (dd/MM/yyyy)

string date_from = date_temp_from.ToString("yyyy/MM/dd HH:mm");
string date_to = date_temp_to.ToString("yyyy/MM/dd HH:mm");

Thank you

Problem was installing iis manager after .net framework aspnet_regiis had run. Run run aspnet_regiis from x64 .net framework directory

aspnet_regiis -iru // From x64 .net framework directory

IIS Manager can't configure .NET Compilation on .NET 4 Applications

I think this sample explains the difference between the styles:

james@bodacious-wired:~$cat test.py 
#!/usr/bin/env python

class MyClass:
    element1 = "Hello"

    def __init__(self):
        self.element2 = "World"

obj = MyClass()

print dir(MyClass)
print "--"
print dir(obj)
print "--"
print obj.element1 
print obj.element2
print MyClass.element1 + " " + MyClass.element2
james@bodacious-wired:~$./test.py 
['__doc__', '__init__', '__module__', 'element1']
--
['__doc__', '__init__', '__module__', 'element1', 'element2']
--
Hello World
Hello
Traceback (most recent call last):
  File "./test.py", line 17, in <module>
    print MyClass.element2
AttributeError: class MyClass has no attribute 'element2'

element1 is bound to the class, element2 is bound to an instance of the class.

A programmatically solution will be:

TextView textView = new TextView(context);
textView.setId(android.R.id.empty);
textView.setLayoutParams(new ViewGroup.LayoutParams(ViewGroup.LayoutParams.WRAP_CONTENT, ViewGroup.LayoutParams.WRAP_CONTENT));
textView.setText("No result found");
listView.setEmptyView(textView);

I use this: if you declare var x = 0; before the functions declarations, the variable works for all the code files, but the variable will be declare every time that you edit a cell in the spreadsheet

subprocess.Popen() is strict super-set of os.system().

(See here also for my C++11 answer)

In order to parse a C++ program, the compiler needs to know whether certain names are types or not. The following example demonstrates that:

t * f;

How should this be parsed? For many languages a compiler doesn't need to know the meaning of a name in order to parse and basically know what action a line of code does. In C++, the above however can yield vastly different interpretations depending on what t means. If it's a type, then it will be a declaration of a pointer f. However if it's not a type, it will be a multiplication. So the C++ Standard says at paragraph (3/7):

Some names denote types or templates. In general, whenever a name is encountered it is necessary to determine whether that name denotes one of these entities before continuing to parse the program that contains it. The process that determines this is called name lookup.

How will the compiler find out what a name t::x refers to, if t refers to a template type parameter? x could be a static int data member that could be multiplied or could equally well be a nested class or typedef that could yield to a declaration. If a name has this property - that it can't be looked up until the actual template arguments are known - then it's called a dependent name (it "depends" on the template parameters).

You might recommend to just wait till the user instantiates the template:

Let's wait until the user instantiates the template, and then later find out the real meaning of t::x * f;.

This will work and actually is allowed by the Standard as a possible implementation approach. These compilers basically copy the template's text into an internal buffer, and only when an instantiation is needed, they parse the template and possibly detect errors in the definition. But instead of bothering the template's users (poor colleagues!) with errors made by a template's author, other implementations choose to check templates early on and give errors in the definition as soon as possible, before an instantiation even takes place.

So there has to be a way to tell the compiler that certain names are types and that certain names aren't.

The "typename" keyword

The answer is: We decide how the compiler should parse this. If t::x is a dependent name, then we need to prefix it by typename to tell the compiler to parse it in a certain way. The Standard says at (14.6/2):

A name used in a template declaration or definition and that is dependent on a template-parameter is assumed not to name a type unless the applicable name lookup finds a type name or the name is qualified by the keyword typename.

There are many names for which typename is not necessary, because the compiler can, with the applicable name lookup in the template definition, figure out how to parse a construct itself - for example with T *f;, when T is a type template parameter. But for t::x * f; to be a declaration, it must be written as typename t::x *f;. If you omit the keyword and the name is taken to be a non-type, but when instantiation finds it denotes a type, the usual error messages are emitted by the compiler. Sometimes, the error consequently is given at definition time:

// t::x is taken as non-type, but as an expression the following misses an
// operator between the two names or a semicolon separating them.
t::x f;

The syntax allows typename only before qualified names - it is therefor taken as granted that unqualified names are always known to refer to types if they do so.

A similar gotcha exists for names that denote templates, as hinted at by the introductory text.

The "template" keyword

Remember the initial quote above and how the Standard requires special handling for templates as well? Let's take the following innocent-looking example:

boost::function< int() > f;

It might look obvious to a human reader. Not so for the compiler. Imagine the following arbitrary definition of boost::function and f:

namespace boost { int function = 0; }
int main() { 
  int f = 0;
  boost::function< int() > f; 
}

That's actually a valid expression! It uses the less-than operator to compare boost::function against zero (int()), and then uses the greater-than operator to compare the resulting bool against f. However as you might well know, boost::function in real life is a template, so the compiler knows (14.2/3):

After name lookup (3.4) finds that a name is a template-name, if this name is followed by a <, the < is always taken as the beginning of a template-argument-list and never as a name followed by the less-than operator.

Now we are back to the same problem as with typename. What if we can't know yet whether the name is a template when parsing the code? We will need to insert template immediately before the template name, as specified by 14.2/4. This looks like:

t::template f<int>(); // call a function template

Template names can not only occur after a :: but also after a -> or . in a class member access. You need to insert the keyword there too:

this->template f<int>(); // call a function template

Dependencies

For the people that have thick Standardese books on their shelf and that want to know what exactly I was talking about, I'll talk a bit about how this is specified in the Standard.

In template declarations some constructs have different meanings depending on what template arguments you use to instantiate the template: Expressions may have different types or values, variables may have different types or function calls might end up calling different functions. Such constructs are generally said to depend on template parameters.

The Standard defines precisely the rules by whether a construct is dependent or not. It separates them into logically different groups: One catches types, another catches expressions. Expressions may depend by their value and/or their type. So we have, with typical examples appended:

• Dependent types (e.g: a type template parameter T)
• Value-dependent expressions (e.g: a non-type template parameter N)
• Type-dependent expressions (e.g: a cast to a type template parameter (T)0)

Most of the rules are intuitive and are built up recursively: For example, a type constructed as T[N] is a dependent type if N is a value-dependent expression or T is a dependent type. The details of this can be read in section (14.6.2/1) for dependent types, (14.6.2.2) for type-dependent expressions and (14.6.2.3) for value-dependent expressions.

Dependent names

The Standard is a bit unclear about what exactly is a dependent name. On a simple read (you know, the principle of least surprise), all it defines as a dependent name is the special case for function names below. But since clearly T::x also needs to be looked up in the instantiation context, it also needs to be a dependent name (fortunately, as of mid C++14 the committee has started to look into how to fix this confusing definition).

To avoid this problem, I have resorted to a simple interpretation of the Standard text. Of all the constructs that denote dependent types or expressions, a subset of them represent names. Those names are therefore "dependent names". A name can take different forms - the Standard says:

A name is a use of an identifier (2.11), operator-function-id (13.5), conversion-function-id (12.3.2), or template-id (14.2) that denotes an entity or label (6.6.4, 6.1)

An identifier is just a plain sequence of characters / digits, while the next two are the operator + and operator type form. The last form is template-name <argument list>. All these are names, and by conventional use in the Standard, a name can also include qualifiers that say what namespace or class a name should be looked up in.

A value dependent expression 1 + N is not a name, but N is. The subset of all dependent constructs that are names is called dependent name. Function names, however, may have different meaning in different instantiations of a template, but unfortunately are not caught by this general rule.

Dependent function names

Not primarily a concern of this article, but still worth mentioning: Function names are an exception that are handled separately. An identifier function name is dependent not by itself, but by the type dependent argument expressions used in a call. In the example f((T)0), f is a dependent name. In the Standard, this is specified at (14.6.2/1).

Additional notes and examples

In enough cases we need both of typename and template. Your code should look like the following

template <typename T, typename Tail>
struct UnionNode : public Tail {
    // ...
    template<typename U> struct inUnion {
        typedef typename Tail::template inUnion<U> dummy;
    };
    // ...
};

The keyword template doesn't always have to appear in the last part of a name. It can appear in the middle before a class name that's used as a scope, like in the following example

typename t::template iterator<int>::value_type v;

In some cases, the keywords are forbidden, as detailed below

• On the name of a dependent base class you are not allowed to write typename. It's assumed that the name given is a class type name. This is true for both names in the base-class list and the constructor initializer list:

   template <typename T>
   struct derive_from_Has_type : /* typename */ SomeBase<T>::type 
   { };
  

• In using-declarations it's not possible to use template after the last ::, and the C++ committee said not to work on a solution.

   template <typename T>
   struct derive_from_Has_type : SomeBase<T> {
      using SomeBase<T>::template type; // error
      using typename SomeBase<T>::type; // typename *is* allowed
   };
  

Year 2020, Installing Cocoapods v1.9.1 in Mac OS Catalina

1. First setup your Xcode version in your mac using terminal.

$ sudo xcode-select -switch /Applications/Xcode.app

2. Next, Install cocoapods using terminal.

$ sudo gem install cocoapods

For More information, visit official website https://cocoapods.org/

If you are starting the script within the command line, then add exit /b to keep CMD opened

Yes but Thinking that you can program every kind of program in a single language is a flawed idea unless you are writing very simple programs. Objective C is for Cocoa as C# is for .NET, Use the right tool for right job, Trying to make C++ interact to Cocoa via writing bridging code and trying to make C++ code behave according to Cocoa requirements is not a good idea neither expecting C++ performance from Objective C is. You should try to layout design and architecture of app keeping in view existing skills and determine which part should be written in which language then build accordingly.

in case u wanna do the validation for "some elements" (not all element) on your form.You can use this method:

$('input[name="element-one"], input[name="element-two"], input[name="element-three"]').valid();

Hope it help everybody :)

EDITED

with open("input", "rb") as input:
    with open("output", "wb") as output:
        while True:
            data = input.read(1024)
            if data == "":
                break
            output.write(data)

The above will read 1 kilobyte at a time, and write it. You can support incredibly large files this way, as you won't need to read the entire file into memory.

Start -> shift + command Prompt right click will helps to use as another user or as Admin

Update for swift 4:

[0,1,2,3,4,5].enumerated().compactMap{ $0 < 10000 ? $1 : nil }

For swift 3:

[0,1,2,3,4,5].enumerated().flatMap{ $0 < 10000 ? $1 : nil }

Maybe you want dictionaries?

d = dict( (i,value) for i,value in enumerate(tple))
while d:
    bla bla bla
    del b[x]

You're using the @ symbol, which removes the need for escaping your backslashes.

Remove the @ or replace \\ with \

\t in a string marks an escape sequence for a tab character. For a literal \, use \\.

You can also use:

var obj = {
    alert: alert.bind(window)
};
obj.alert('I´m an alert!!');

flutter config --android-sdk C:\Users\CHAMOD\AppData\Local\Android\Sdk

run this command in Terminal.

then restart the IDE

I solved a similar issue by just deleting the .git folder from my project and reintegrating with version control through IntelliJ. Note: The .git folder is hidden. You can view it in the terminal with ls -a , and then remove it using rm -rf .git .

Most of the other answers here are somewhat out-of-date with today's best practices. As such here is the application of using PBKDF2/Rfc2898DeriveBytes to store and verify passwords. The following code is in a stand-alone class in this post: Another example of how to store a salted password hash. The basics are really easy, so here it is broken down:

STEP 1 Create the salt value with a cryptographic PRNG:

byte[] salt;
new RNGCryptoServiceProvider().GetBytes(salt = new byte[16]);

STEP 2 Create the Rfc2898DeriveBytes and get the hash value:

var pbkdf2 = new Rfc2898DeriveBytes(password, salt, 100000);
byte[] hash = pbkdf2.GetBytes(20);

STEP 3 Combine the salt and password bytes for later use:

byte[] hashBytes = new byte[36];
Array.Copy(salt, 0, hashBytes, 0, 16);
Array.Copy(hash, 0, hashBytes, 16, 20);

STEP 4 Turn the combined salt+hash into a string for storage

string savedPasswordHash = Convert.ToBase64String(hashBytes);
DBContext.AddUser(new User { ..., Password = savedPasswordHash });

STEP 5 Verify the user-entered password against a stored password

/* Fetch the stored value */
string savedPasswordHash = DBContext.GetUser(u => u.UserName == user).Password;
/* Extract the bytes */
byte[] hashBytes = Convert.FromBase64String(savedPasswordHash);
/* Get the salt */
byte[] salt = new byte[16];
Array.Copy(hashBytes, 0, salt, 0, 16);
/* Compute the hash on the password the user entered */
var pbkdf2 = new Rfc2898DeriveBytes(password, salt, 100000);
byte[] hash = pbkdf2.GetBytes(20);
/* Compare the results */
for (int i=0; i < 20; i++)
    if (hashBytes[i+16] != hash[i])
        throw new UnauthorizedAccessException();

Note: Depending on the performance requirements of your specific application, the value 100000 can be reduced. A minimum value should be around 10000.

Applying recursion to reorder items in an arraylist

public class ArrayListUtils {
            public static <T> void reArrange(List<T> list,int from, int to){
                if(from != to){
                     if(from > to)
                        reArrange(list,from -1, to);
                      else
                        reArrange(list,from +1, to);

                     Collections.swap(list, from, to);
                }
            }
    }

Sorry, it's really quite hard to do this...

I would suggest that you politely ask them to not use your content (if your content is copyrighted).

If it is and they don't take it down, then you can take furthur action and send them a cease and desist letter.

Generally, whatever you do to prevent scraping will probably end up with a more negative effect, e.g. accessibility, bots/spiders, etc.

This will work fine:

private static void addfiles(File inputValVal, ArrayList<File> files)
{
  if(inputVal.isDirectory())
  {
    ArrayList <File> path = new ArrayList<File>(Arrays.asList(inputVal.listFiles()));

    for(int i=0; i<path.size(); ++i)
    {
        if(path.get(i).isDirectory())
        {
            addfiles(path.get(i),files);
        }
        if(path.get(i).isFile())
        {
            files.add(path.get(i));
        }
     }

    /*  Optional : if you need to have the counts of all the folders and files you can create 2 global arrays 
        and store the results of the above 2 if loops inside these arrays */
   }

   if(inputVal.isFile())
   {
     files.add(inputVal);
   }

}

You are using DictWriter.writerows() which expects a list of dicts, not a dict. You want DictWriter.writerow() to write a single row.

You will also want to use DictWriter.writeheader() if you want a header for you csv file.

You also might want to check out the with statement for opening files. It's not only more pythonic and readable but handles closing for you, even when exceptions occur.

Example with these changes made:

import csv

my_dict = {"test": 1, "testing": 2}

with open('mycsvfile.csv', 'w') as f:  # You will need 'wb' mode in Python 2.x
    w = csv.DictWriter(f, my_dict.keys())
    w.writeheader()
    w.writerow(my_dict)

Which produces:

test,testing
1,2

To get the checkbox for 'Seaside & Country Homes', use this XPath:

//label[text()='Seaside & Country Homes']/preceding-sibling::input[@type='checkbox']

To get the checkbox for 'housingmoves', use this XPath:

//label[text()='housingmoves']/preceding-sibling::input[@type='checkbox']

The principle here is to get the label with the text you want, then get the checkbox that is before the label, since that seems to be how your HTML is laid out.

To get all checkboxes, you would start a little higher up and then work down, so that is to say get the table, and then get any checkbox within a span:

//table/descendant::span/input[@type='checkbox']

Using data.frame instead of cbind should be helpful

x <- data.frame(col1=c(10, 20), col2=c("[]", "[]"), col3=c("[[1,2]]","[[1,3]]"))
x
  col1 col2    col3
1   10   [] [[1,2]]
2   20   [] [[1,3]]

sapply(x, class) # looking into x to see the class of each element
     col1      col2      col3 
"numeric"  "factor"  "factor" 

As you can see elements from col1 are numeric as you wish.

data.frame can have variables of different class: numeric, factor and character but matrix doesn't, once you put a character element into a matrix all the other will become into this class no matter what clase they were before.

Your error

InvalidStateError: An attempt was made to use an object that is not, or is no longer, usable

appears because you must call setRequestHeader after calling open. Simply move your setRequestHeader line below your open line (but before send):

xmlhttp.open("POST", url);
xmlhttp.setRequestHeader("x-filename", photoId);
xmlhttp.send(formData);

You can use this, in a controller method or in an inline function of a route:

   try {
        DB::connection()->getPdo();
        if(DB::connection()->getDatabaseName()){
            echo "Yes! Successfully connected to the DB: " . DB::connection()->getDatabaseName();
        }else{
            die("Could not find the database. Please check your configuration.");
        }
    } catch (\Exception $e) {
        die("Could not open connection to database server.  Please check your configuration.");
    }

In case you don't have permission to 'Modify', you can install a free tool called "SQL Search" (by Redgate). I use it to search for keywords that I know will be in the SP and it returns a preview of the SP code with the keywords highlighted.

Ingenious! I then copy this code into my own SP.

You can simply use shape method df[df['LastName'] == 'Smith'].shape

Output
(1,1)

Which indicates 1 row and 1 column. This way you can get the idea of whole datasets

Let me explain the above code DataframeName[DataframeName['Column_name'] == 'Value to match in column']

I'm using IronPython here (same as .NET API) and reading the file as UTF-8 in order to properly handle the BOM fixed the problem for me:

xmlFile = Path.Combine(directory_str, 'file.xml')
doc = XPathDocument(XmlTextReader(StreamReader(xmlFile.ToString(), Encoding.UTF8)))

It would work as well with the XmlDocument:

doc = XmlDocument()
doc.Load(XmlTextReader(StreamReader(xmlFile.ToString(), Encoding.UTF8)))

you can convert your datatable to list. check the following link

https://stackoverflow.com/a/35171050/1805776

public static class Helper
{
    public static List<T> DataTableToList<T>(this DataTable dataTable) where T : new()
    {
        var dataList = new List<T>();

        //Define what attributes to be read from the class
        const System.Reflection.BindingFlags flags = System.Reflection.BindingFlags.Public | System.Reflection.BindingFlags.Instance;

        //Read Attribute Names and Types
        var objFieldNames = typeof(T).GetProperties(flags).Cast<System.Reflection.PropertyInfo>().
            Select(item => new
            {
                Name = item.Name,
                Type = Nullable.GetUnderlyingType(item.PropertyType) ?? item.PropertyType
            }).ToList();

        //Read Datatable column names and types
        var dtlFieldNames = dataTable.Columns.Cast<DataColumn>().
            Select(item => new
            {
                Name = item.ColumnName,
                Type = item.DataType
            }).ToList();

        foreach (DataRow dataRow in dataTable.AsEnumerable().ToList())
        {
            var classObj = new T();

            foreach (var dtField in dtlFieldNames)
            {
                System.Reflection.PropertyInfo propertyInfos = classObj.GetType().GetProperty(dtField.Name);

                var field = objFieldNames.Find(x => x.Name == dtField.Name);

                if (field != null)
                {

                    if (propertyInfos.PropertyType == typeof(DateTime))
                    {
                        propertyInfos.SetValue
                        (classObj, convertToDateTime(dataRow[dtField.Name]), null);
                    }
                    else if (propertyInfos.PropertyType == typeof(Nullable<DateTime>))
                    {
                        propertyInfos.SetValue
                        (classObj, convertToDateTime(dataRow[dtField.Name]), null);
                    }
                    else if (propertyInfos.PropertyType == typeof(int))
                    {
                        propertyInfos.SetValue
                        (classObj, ConvertToInt(dataRow[dtField.Name]), null);
                    }
                    else if (propertyInfos.PropertyType == typeof(long))
                    {
                        propertyInfos.SetValue
                        (classObj, ConvertToLong(dataRow[dtField.Name]), null);
                    }
                    else if (propertyInfos.PropertyType == typeof(decimal))
                    {
                        propertyInfos.SetValue
                        (classObj, ConvertToDecimal(dataRow[dtField.Name]), null);
                    }
                    else if (propertyInfos.PropertyType == typeof(String))
                    {
                        if (dataRow[dtField.Name].GetType() == typeof(DateTime))
                        {
                            propertyInfos.SetValue
                            (classObj, ConvertToDateString(dataRow[dtField.Name]), null);
                        }
                        else
                        {
                            propertyInfos.SetValue
                            (classObj, ConvertToString(dataRow[dtField.Name]), null);
                        }
                    }
                    else
                    {

                        propertyInfos.SetValue
                            (classObj, Convert.ChangeType(dataRow[dtField.Name], propertyInfos.PropertyType), null);

                    }
                }
            }
            dataList.Add(classObj);
        }
        return dataList;
    }

    private static string ConvertToDateString(object date)
    {
        if (date == null)
            return string.Empty;

        return date == null ? string.Empty : Convert.ToDateTime(date).ConvertDate();
    }

    private static string ConvertToString(object value)
    {
        return Convert.ToString(ReturnEmptyIfNull(value));
    }

    private static int ConvertToInt(object value)
    {
        return Convert.ToInt32(ReturnZeroIfNull(value));
    }

    private static long ConvertToLong(object value)
    {
        return Convert.ToInt64(ReturnZeroIfNull(value));
    }

    private static decimal ConvertToDecimal(object value)
    {
        return Convert.ToDecimal(ReturnZeroIfNull(value));
    }

    private static DateTime convertToDateTime(object date)
    {
        return Convert.ToDateTime(ReturnDateTimeMinIfNull(date));
    }

    public static string ConvertDate(this DateTime datetTime, bool excludeHoursAndMinutes = false)
    {
        if (datetTime != DateTime.MinValue)
        {
            if (excludeHoursAndMinutes)
                return datetTime.ToString("yyyy-MM-dd");
            return datetTime.ToString("yyyy-MM-dd HH:mm:ss.fff");
        }
        return null;
    }
    public static object ReturnEmptyIfNull(this object value)
    {
        if (value == DBNull.Value)
            return string.Empty;
        if (value == null)
            return string.Empty;
        return value;
    }
    public static object ReturnZeroIfNull(this object value)
    {
        if (value == DBNull.Value)
            return 0;
        if (value == null)
            return 0;
        return value;
    }
    public static object ReturnDateTimeMinIfNull(this object value)
    {
        if (value == DBNull.Value)
            return DateTime.MinValue;
        if (value == null)
            return DateTime.MinValue;
        return value;
    }
}

If you have the web view figured out but your images are still out of scale, the best solution I found (here) was simply prepending the document with:

<style>img{display: inline; height: auto; max-width: 100%;}</style>

As a result all images are scaled to match the web view width.

Reminder: If you do combine multiple contexts make sure you cut n paste all the functionality in your various RealContexts.OnModelCreating() into your single CombinedContext.OnModelCreating().

I just wasted time hunting down why my cascade delete relationships weren't being preserved only to discover that I hadn't ported the modelBuilder.Entity<T>()....WillCascadeOnDelete(); code from my real context into my combined context.

example:

public class CurrencyDenom {
   public static final int PENNY = 1;
 public static final int NICKLE = 5;
 public static final int DIME = 10;
public static final int QUARTER = 25;}

Limitation of java Constants

1) No Type-Safety: First of all it’s not type-safe; you can assign any valid int value to int e.g. 99 though there is no coin to represent that value.

2) No Meaningful Printing: printing value of any of these constant will print its numeric value instead of meaningful name of coin e.g. when you print NICKLE it will print "5" instead of "NICKLE"

3) No namespace: to access the currencyDenom constant we need to prefix class name e.g. CurrencyDenom.PENNY instead of just using PENNY though this can also be achieved by using static import in JDK 1.5

Advantage of enum

1) Enums in Java are type-safe and has there own name-space. It means your enum will have a type for example "Currency" in below example and you can not assign any value other than specified in Enum Constants.

public enum Currency {PENNY, NICKLE, DIME, QUARTER};

Currency coin = Currency.PENNY; coin = 1; //compilation error

2) Enum in Java are reference type like class or interface and you can define constructor, methods and variables inside java Enum which makes it more powerful than Enum in C and C++ as shown in next example of Java Enum type.

3) You can specify values of enum constants at the creation time as shown in below example: public enum Currency {PENNY(1), NICKLE(5), DIME(10), QUARTER(25)}; But for this to work you need to define a member variable and a constructor because PENNY (1) is actually calling a constructor which accepts int value , see below example.

public enum Currency {
    PENNY(1), NICKLE(5), DIME(10), QUARTER(25);
    private int value;

    private Currency(int value) {
            this.value = value;
    }
}; 

Reference: https://javarevisited.blogspot.com/2011/08/enum-in-java-example-tutorial.html

use \t instead of space.

bw.write("\t"); 

You've an number of options, depending on how you want to play it:

isNaN(val)

Returns true if val is not a number, false if it is. In your case, this is probably what you need.

isFinite(val)

Returns true if val, when cast to a String, is a number and it is not equal to +/- Infinity

/^\d+$/.test(val)

Returns true if val, when cast to a String, has only digits (probably not what you need).

Open your logCat when trying to install the app. Set it to "No Filters". Search for "InstallAppProgress" package identifier. If the install fails you should see an "Installation error code". In my case it was

D/InstallAppProgress: Installation error code: -7

From here you can use this link to find information about your specific error code.

There are two ways of getting query params:

1. Using reqeust.URL.Query()
2. Using request.Form

In second case one has to be careful as body parameters will take precedence over query parameters. A full description about getting query params can be found here

https://golangbyexample.com/net-http-package-get-query-params-golang

1. literal_eval, a somewhat safer version of eval (will only evaluate literals ie strings, lists etc):

   from ast import literal_eval
   
   python_dict = literal_eval("{'a': 1}")
   

2. json.loads but it would require your string to use double quotes:

   import json
   
   python_dict = json.loads('{"a": 1}')
   

if(list.ElementAtOrDefault(2) != null)
{
   // logic
}

ElementAtOrDefault() is part of the System.Linq namespace.

Although you have a List, so you can use list.Count > 2.

create constant file with any name like my_constants.py declare constant like that

CONSTANT_NAME = "SOME VALUE"

For accessing constant in your code import file like that

import my_constants as constant

and access the constant value as -

constant.CONSTANT_NAME

Option #1: Use ProvidePlugin

Add the ProvidePlugin to the plugins array in both build/webpack.dev.conf.js and build/webpack.prod.conf.js so that jQuery becomes globally available to all your modules:

plugins: [

  // ...

  new webpack.ProvidePlugin({
    $: 'jquery',
    jquery: 'jquery',
    'window.jQuery': 'jquery',
    jQuery: 'jquery'
  })
]

Option #2: Use Expose Loader module for webpack

As @TremendusApps suggests in his answer, add the Expose Loader package:

npm install expose-loader --save-dev

Use in your entry point main.js like this:

import 'expose?$!expose?jQuery!jquery'

// ...

My App.config looks as below:
<?xml version="1.0" encoding="utf-8"?>
<configuration>
  <configSections>
    <!-- For more information on Entity Framework configuration, visit http://go.microsoft.com/fwlink/?LinkID=237468 -->
    <section name="entityFramework" type="System.Data.Entity.Internal.ConfigFile.EntityFrameworkSection, EntityFramework, Version=6.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089" requirePermission="false" />
  </configSections>
  <entityFramework>
    <defaultConnectionFactory type="System.Data.Entity.Infrastructure.LocalDbConnectionFactory, EntityFramework">
      <parameters>
        <parameter value="v11.0" />
      </parameters>
    </defaultConnectionFactory>
    <providers>
      <provider invariantName="System.Data.SqlClient" type="System.Data.Entity.SqlServer.SqlProviderServices, EntityFramework.SqlServer" />
    </providers>
  </entityFramework>
</configuration>

I noticed that there is localDB in the path that you mentioned above and has the version v11.0. So I entered (LocalDB\V11.0) in Add Connection dialogue and it worked for me.

this, should work: git push origin local-name:remote-name

Better, for GitLab I use a second "origin", say "origin2":

git remote add origin2 ...
then

git push origin2 master

The conventional (short) git push should work implicitly as with the 1st "origin"

` Please include either of these:

`#include<sstream>`

using std::istringstream; 

You can use all

> all(1:6 %in% 0:36)
[1] TRUE
> all(1:60 %in% 0:36)
[1] FALSE

On a similar note, if you want to check whether any of the elements is TRUE you can use any

> any(1:6 %in% 0:36)
[1] TRUE
> any(1:60 %in% 0:36)
[1] TRUE
> any(50:60 %in% 0:36)
[1] FALSE

The difference between include() and require() arises when the file being included cannot be found: include() will release a warning (E_WARNING) and the script will continue, whereas require() will release a fatal error (E_COMPILE_ERROR) and terminate the script. If the file being included is critical to the rest of the script running correctly then you need to use require().

For more details : Difference between Include and Require in PHP

I couldn't resolve this method (admittedly I didn't search for long)

mongoose.mongo.BSONPure.ObjectID.fromHexString

If your schema expects the property to be of type ObjectId, the conversion is implicit, at least this seems to be the case in 4.7.8.

You could use something like this however, which gives a bit more flex:

function toObjectId(ids) {

    if (ids.constructor === Array) {
        return ids.map(mongoose.Types.ObjectId);
    }

    return mongoose.Types.ObjectId(ids);
}

I am not very good in using sophisticated regular expressions, so I'd do such task in the following way:

files <- list.files()
dbf.files <- files[-grep(".xml", files, fixed=T)]

First line just lists all files from working dir. Second one drops everything containing ".xml" (grep returns indices of such strings in 'files' vector; subsetting with negative indices removes corresponding entries from vector). "fixed" argument for grep function is just my whim, as I usually want it to peform crude pattern matching without Perl-style fancy regexprs, which may cause surprise for me.

I'm aware that such solution simply reflects drawbacks in my education, but for a novice it may be useful =) at least it's easy.

I have always tried to make my code standard and look as close to the same as possible. This makes it easier for others to read it when they are in charge of updating it. If you do your first example and add a line to it in the middle it will fail.

Won't work:

if(statement) do this; and this; else do this;

This XPath:

count(//Property[long = '11007'])

returns the same value as:

count(//Property/long[text() = '11007'])

...except that the first counts Property nodes that match the criterion and the second counts long child nodes that match the criterion.

As per your comment and reading your question a couple of times, I believe that you want to find uniqueness based on a combination of criteria. Therefore, in actuality, I think you are actually checking multiple conditions. The following would work as well:

count(//Property[@Name = 'Alive'][long = '11007'])

because it means the same thing as:

count(//Property[@Name = 'Alive' and long = '11007'])

Of course, you would substitute the values for parameters in your template. The above code only illustrates the point.

EDIT (after question edit)

You were quite right about the XML being horrible. In fact, this is a downright CodingHorror candidate! I had to keep recounting to keep track of the "Property" node I was on presently. I feel your pain!

Here you go:

count(/root/ac/Properties/Property[Properties/Property/Properties/Property/long = $parPropId])

Note that I have removed all the other checks (for ID and Value). They appear not to be required since you are able to arrive at the relevant node using the hierarchy in the XML. Also, you already mentioned that the check for uniqueness is based only on the contents of the long element.

This is one way of doing it:

datagridview.DataSource = null;
datagridview.Refresh();

I hope it works for you because it is working for me.

please open your Visual Studio in Administration Mode then try it.

I would try to avoid changing the xticklabels if possible, otherwise it can get very confusing if you for example overplot your histogram with additional data.

Defining the range of your grid is probably the best and with imshow it can be done by adding the extent keyword. This way the axes gets adjusted automatically. If you want to change the labels i would use set_xticks with perhaps some formatter. Altering the labels directly should be the last resort.

fig, ax = plt.subplots(figsize=(6,6))

ax.imshow(hist, cmap=plt.cm.Reds, interpolation='none', extent=[80,120,32,0])
ax.set_aspect(2) # you may also use am.imshow(..., aspect="auto") to restore the aspect ratio

This answer helped me https://stackoverflow.com/a/18880670/1821607 The reason of crush — index 0 wasn't set. Simple $array = $array + array(null) did the trick. Or you should check whether array element on index 0 is set via isset($array[0]). The second variant is the best approach for me.

I'd have gone with

var myFoo = document.querySelectorAll("#myDiv > .foo");
var myDiv = myFoo.parentNode;

If you're using django, you can use urlquote:

>>> from django.utils.http import urlquote
>>> urlquote(u"Müller")
u'M%C3%BCller'

Note that changes to Python since this answer was published mean that this is now a legacy wrapper. From the Django 2.1 source code for django.utils.http:

A legacy compatibility wrapper to Python's urllib.parse.quote() function.
(was used for unicode handling on Python 2)

It depends on which level you selected in your log4j configuration file.

<Loggers>
        <Root level="info">
        ...

If your level is "info" (by default), logger.debug(...) will not be printed in your console. However, if your level is "debug", it will.

Depending on the criticality level of your code, you should use the most accurate level among the following ones :

ALL < TRACE < DEBUG < INFO < WARN < ERROR < FATAL < OFF

Give the DIV a specific with in percentage or pixels and center it using CSS margin property.

HTML

<div id="my-main-div"></div>

CSS

#my-main-div { margin: 0 auto; }

enjoy :)

I don't know how you got a string in $? but you can do:

if [[ "x$?" == "x0" ]]; then
   echo good
fi

This I use because I can understand and hence remember it better (and date time format also can be customized based on your choice) :-

import datetime
moment = datetime.datetime.now()
print("{}/{}/{} {}:{}:{}".format(moment.day, moment.month, moment.year,
                                 moment.hour, moment.minute, moment.second))

I tried to use socket.io on AWS, I can at most keep around 600 connections stable.

And I found out it is because socket.io used long polling first and upgraded to websocket later.

after I set the config to use websocket only, I can keep around 9000 connections.

Set this config at client side:

const socket = require('socket.io-client')
const conn = socket(host, { upgrade: false, transports: ['websocket'] })

I'd also suggest moving the event handler outside render.

var OnSubmitTest = React.createClass({

  submit: function(e){
    e.preventDefault();
    alert('it works!');
  }

  render: function() {
    return (
      <form onSubmit={this.submit}>
        <button>Click me</button>
      </form>
    );
  }
});

Not an OP direct response, but I thought I would jimmy in here responding to the the OP's ERROR messsage, which may point you in another direction entirely!

All these answers are referring to an overall ORDER BY once the record set has been retrieved and you sort the lot.

What if you want to ORDER BY each portion of the UNION independantly, and still have them "joined" in the same SELECT?

SELECT pass1.* FROM 
 (SELECT TOP 1000 tblA.ID, tblA.CustomerName 
  FROM TABLE_A AS tblA ORDER BY 2) AS pass1
UNION ALL 
SELECT pass2.* FROM 
  (SELECT TOP 1000 tblB.ID, tblB.CustomerName 
   FROM TABLE_B AS tblB ORDER BY 2) AS pass2

Note the TOP 1000 is an arbitary number. Use a big enough number to capture all of the data you require.

You could use a Common Table Expression to create the SUM first, join it to the table, and then use the WHEN to to get the value from the CTE or the original table as necessary.

WITH PercentageOfTotal (Id, Percentage) 
AS 
(
    SELECT Id, (cnt / SUM(AreaId)) FROM dbo.MyTable GROUP BY Id
)
SELECT 
    CASE
        WHEN o.TotalType = 'Average' THEN r.avgscore
        WHEN o.TotalType = 'PercentOfTot' THEN pt.Percentage
        ELSE o.cnt
    END AS [displayscore]
FROM PercentageOfTotal pt
    JOIN dbo.MyTable t ON pt.Id = t.Id

Use git ls-remote git://github.com/<user>/<project>.git. For example, my trac-backlog project gives:

:: git ls-remote git://github.com/jszakmeister/trac-backlog.git
5d6a3c973c254378738bdbc85d72f14aefa316a0    HEAD
4652257768acef90b9af560295b02d0ac6e7702c    refs/heads/0.1.x
35af07bc99c7527b84e11a8632bfb396823326f3    refs/heads/0.2.x
5d6a3c973c254378738bdbc85d72f14aefa316a0    refs/heads/master
520dcebff52506682d6822ade0188d4622eb41d1    refs/pull/11/head
6b2c1ed650a7ff693ecd8ab1cb5c124ba32866a2    refs/pull/11/merge
51088b60d66b68a565080eb56dbbc5f8c97c1400    refs/pull/12/head
127c468826c0c77e26a5da4d40ae3a61e00c0726    refs/pull/12/merge
2401b5537224fe4176f2a134ee93005a6263cf24    refs/pull/15/head
8aa9aedc0e3a0d43ddfeaf0b971d0ae3a23d57b3    refs/pull/15/merge
d96aed93c94f97d328fc57588e61a7ec52a05c69    refs/pull/7/head
f7c1e8dabdbeca9f9060de24da4560abc76e77cd    refs/pull/7/merge
aa8a935f084a6e1c66aa939b47b9a5567c4e25f5    refs/pull/8/head
cd258b82cc499d84165ea8d7a23faa46f0f2f125    refs/pull/8/merge
c10a73a8b0c1809fcb3a1f49bdc1a6487927483d    refs/tags/0.1.0
a39dad9a1268f7df256ba78f1166308563544af1    refs/tags/0.2.0
2d559cf785816afd69c3cb768413c4f6ca574708    refs/tags/0.2.1
434170523d5f8aad05dc5cf86c2a326908cf3f57    refs/tags/0.2.2
d2dfe40cb78ddc66e6865dcd2e76d6bc2291d44c    refs/tags/0.3.0
9db35263a15dcdfbc19ed0a1f7a9e29a40507070    refs/tags/0.3.0^{}

Just grep for the one you need and cut it out:

:: git ls-remote git://github.com/jszakmeister/trac-backlog.git | \
   grep refs/heads/master | cut -f 1
5d6a3c973c254378738bdbc85d72f14aefa316a0

Or, you can specify which refs you want on the command line and avoid the grep with:

:: git ls-remote git://github.com/jszakmeister/trac-backlog.git refs/heads/master | \
   cut -f 1
5d6a3c973c254378738bdbc85d72f14aefa316a0

Note: it doesn't have to be the git:// URL. It could be https:// or [email protected]: too.

Originally, this was geared towards finding out the latest commit of a remote branch (not just from your last fetch, but the actual latest commit in the branch on the remote repository). If you need the commit hash for something locally, the best answer is:

git rev-parse branch-name

It's fast, easy, and a single command. If you want the commit hash for the current branch, you can look at HEAD:

git rev-parse HEAD

Here's the code that works for me everytime (for Outlook emails):

#to read Subjects and Body of email in a folder (or subfolder)

import win32com.client  
#import package

outlook = win32com.client.Dispatch("Outlook.Application").GetNamespace("MAPI")  
#create object

#get to the desired folder ([email protected] is my root folder)

root_folder = 
outlook.Folders['[email protected]'].Folders['Inbox'].Folders['SubFolderName']

#('Inbox' and 'SubFolderName' are the subfolders)

messages = root_folder.Items

for message in messages:
if message.Unread == True:    # gets only 'Unread' emails
    subject_content = message.subject
# to store subject lines of mails

    body_content = message.body
# to store Body of mails

    print(subject_content)
    print(body_content)

    message.Unread = True         # mark the mail as 'Read'
    message = messages.GetNext()  #iterate over mails

try this:

$yearnow= date("Y");
$yearnext=$yearnow+1;
echo date("Y")."-".$yearnext;

Have a look at insertAdjacentHTML

var element = document.getElementById("one");
var newElement = '<div id="two">two</div>'
element.insertAdjacentHTML( 'afterend', newElement )
// new DOM structure: <div id="one">one</div><div id="two">two</div>

position is the position relative to the element you are inserting adjacent to:

'beforebegin' Before the element itself

'afterbegin' Just inside the element, before its first child

'beforeend' Just inside the element, after its last child

'afterend' After the element itself

strcat attempts to append the second parameter to the first. This won't work since you are assigning implicitly sized constant strings.

If all you want to do is print two strings out

printf("%s%s",str1,str2);

Would do.

You could do something like

char *str1 = calloc(sizeof("SSSS")+sizeof("KKKK")+1,sizeof *str1);
strcpy(str1,"SSSS");
strcat(str1,str2);

to create a concatenated string; however strongly consider using strncat/strncpy instead. And read the man pages carefully for the above. (oh and don't forget to free str1 at the end).

For those having problems with AOT, you need to do it a little differently with a useFactory:

export function getCulture() {
    return 'fr-CA';
}

@NgModule({
  providers: [
    { provide: LOCALE_ID, useFactory: getCulture },
    //otherProviders...
  ]
})

Try PEAR's HTTP_Request2 package to easily send POST requests. Alternatively, you can use PHP's curl functions or use a PHP stream context.

HTTP_Request2 also makes it possible to mock out the server, so you can unit-test your code easily

Unfortunately, Dictionary has problems with Model Binding in MVC. Read the full story here. Instead, create a custom model binder to get the Dictionary as a parameter for the controller action.

To solve your requirement, here is the working solution -

First create your ViewModels in following way. PersonModel can have list of RoleModels.

public class PersonModel
{
    public List<RoleModel> Roles { get; set; }
    public string Name { get; set; }
}

public class RoleModel
{
    public string RoleName { get; set;}
    public string Description { get; set;}
}

Then have a index action which will be serving basic index view -

public ActionResult Index()
{
    return View();
}

Index view will be having following JQuery AJAX POST operation -

<script src="~/Scripts/jquery-1.10.2.min.js"></script>
<script>
    $(function () {
        $('#click1').click(function (e) {

            var jsonObject = {
                "Name" : "Rami",
                "Roles": [{ "RoleName": "Admin", "Description" : "Admin Role"}, { "RoleName": "User", "Description" : "User Role"}]
            };

            $.ajax({
                url: "@Url.Action("AddUser")",
                type: "POST",
                data: JSON.stringify(jsonObject),
                contentType: "application/json; charset=utf-8",
                dataType: "json",
                error: function (response) {
                    alert(response.responseText);
            },
                success: function (response) {
                    alert(response);
                }
            });

        });
    });
</script>

<input type="button" value="click1" id="click1" />

Index action posts to AddUser action -

[HttpPost]
public ActionResult AddUser(PersonModel model)
{
    if (model != null)
    {
        return Json("Success");
    }
    else
    {
        return Json("An Error Has occoured");
    }
}

So now when the post happens you can get all the posted data in the model parameter of action.

Update:

For asp.net core, to get JSON data as your action parameter you should add the [FromBody] attribute before your param name in your controller action. Note: if you're using ASP.NET Core 2.1, you can also use the [ApiController] attribute to automatically infer the [FromBody] binding source for your complex action method parameters. (Doc)

This is a good approach to show animation in and out using jQuery

  $(document).ready(function() {
      // show the alert
      $(".alert").first().hide().slideDown(500).delay(4000).slideUp(500, function () {
         $(this).remove(); 
      });
  });

If we are talking Visual Studio Code nowadays you set a default formatter in your settings.json:

  // Defines a default formatter which takes precedence over all other formatter settings. 
  // Must be the identifier of an extension contributing a formatter.
  "editor.defaultFormatter": null,

Point to the identifier of any installed extension, i.e.

"editor.defaultFormatter": "esbenp.prettier-vscode"

You can also do so format-specific:

"[html]": {
    "editor.defaultFormatter": "esbenp.prettier-vscode"
},
"[scss]": {
    "editor.defaultFormatter": "esbenp.prettier-vscode"
},
"[sass]": {
    "editor.defaultFormatter": "michelemelluso.code-beautifier"
},

Also see here.

You could also assign other keys for different formatters in your keyboard shortcuts (keybindings.json). By default, it reads:

{
  "key": "shift+alt+f",
  "command": "editor.action.formatDocument",
  "when": "editorHasDocumentFormattingProvider && editorHasDocumentFormattingProvider && editorTextFocus && !editorReadonly"
}

Lastly, if you decide to use the Prettier plugin and prettier.rc, and you want for example different indentation for html, scss, json...

{
    "semi": true,
    "singleQuote": false,
    "trailingComma": "none",
    "useTabs": false,

    "overrides": [
        {
            "files": "*.component.html",
            "options": {
                "parser": "angular",
                "tabWidth": 4
            }
        },
        {
            "files": "*.scss",
            "options": {
                "parser": "scss",
                "tabWidth": 2
            }
        },
        {
            "files": ["*.json", ".prettierrc"],
            "options": {
                "parser": "json",
                "tabWidth": 4
            }
        }
    ]
}

It's because the in.nextInt() doesn't change line. So you first "enter" (after you press 3 ) cause the endOfLine read by your in.nextLine() in your loop.

Here a small change that you can do:

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());
    names = new String[nnames];

    for (int i = 0; i < names.length; i++){
            System.out.print("Type a name: ");
            names[i] = in.nextLine();
    }

For multiple columns you can do:

df = pd.DataFrame(np.zeros([nrow, ncol])*np.nan)

To the people concerned about "boxing" in jsight's answer: there is none. String.valueOf(Object) is used here, and no unboxing to int is ever performed.

Whether you use Integer.toString() or String.valueOf(Object) depends on how you want to handle possible nulls. Do you want to throw an exception (probably), or have "null" Strings in your list (maybe). If the former, do you want to throw a NullPointerException or some other type?

Also, one small flaw in jsight's response: List is an interface, you can't use the new operator on it. I would probably use a java.util.ArrayList in this case, especially since we know up front how long the list is likely to be.

I found out that single quote > double quote > wrapped in ampersands did work. So, for me it looks like this:

=QUERY('Youth Conference Registration'!C:Y,"select C where Y = '"&A1&"'", 0)

echo $PWD

PWD is an environment variable.

Create a class and give it an __init__ method:

class Student:
    def __init__(self, name, age, major):
        self.name = name
        self.age = age
        self.major = major

    def is_old(self):
        return self.age > 100

Now, you can initialize an instance of the Student class:

>>> s = Student('John', 88, None)
>>> s.name
    'John'
>>> s.age
    88

Although I'm not sure why you need a make_student student function if it does the same thing as Student.__init__.

For percise time measurements (like GetTickCount), also take a look at mach_absolute_time and this Apple Q&A: http://developer.apple.com/qa/qa2004/qa1398.html.

Try this:

/**
 * The template for displaying demo page
 *
 * template name: demo template
 *
 */

Use the Java Calendar class.

Calendar calendar = Calendar.getInstance();
int day = calendar.get(Calendar.DAY_OF_WEEK); 

switch (day) {
    case Calendar.SUNDAY:
        // Current day is Sunday
        break;
    case Calendar.MONDAY:
        // Current day is Monday
        break;
    case Calendar.TUESDAY:
        // etc.
        break;
}

array.split(' ').slice(-1)[0]

The best one ever and my favorite.

It's not that different in bash.

workdone=0
while : ; do
  ...
  if [ "$workdone" -ne 0 ]; then
      break
  fi
done

: is the no-op command; its exit status is always 0, so the loop runs until workdone is given a non-zero value.

There are many ways you could set and test the value of workdone in order to exit the loop; the one I show above should work in any POSIX-compatible shell.

Within Nano use Ctrl+O to save and Ctrl+X to exit if you were wondering

Yes, I think hashing the file would be the best way if you have to compare several files and store hashes for later comparison. As hash can clash, a byte-by-byte comparison may be done depending on the use case.

Generally byte-by-byte comparison would be sufficient and efficient, which filecmp module already does + other things too.

See http://docs.python.org/library/filecmp.html e.g.

>>> import filecmp
>>> filecmp.cmp('file1.txt', 'file1.txt')
True
>>> filecmp.cmp('file1.txt', 'file2.txt')
False

Speed consideration: Usually if only two files have to be compared, hashing them and comparing them would be slower instead of simple byte-by-byte comparison if done efficiently. e.g. code below tries to time hash vs byte-by-byte

Disclaimer: this is not the best way of timing or comparing two algo. and there is need for improvements but it does give rough idea. If you think it should be improved do tell me I will change it.

import random
import string
import hashlib
import time

def getRandText(N):
    return  "".join([random.choice(string.printable) for i in xrange(N)])

N=1000000
randText1 = getRandText(N)
randText2 = getRandText(N)

def cmpHash(text1, text2):
    hash1 = hashlib.md5()
    hash1.update(text1)
    hash1 = hash1.hexdigest()

    hash2 = hashlib.md5()
    hash2.update(text2)
    hash2 = hash2.hexdigest()

    return  hash1 == hash2

def cmpByteByByte(text1, text2):
    return text1 == text2

for cmpFunc in (cmpHash, cmpByteByByte):
    st = time.time()
    for i in range(10):
        cmpFunc(randText1, randText2)
    print cmpFunc.func_name,time.time()-st

and the output is

cmpHash 0.234999895096
cmpByteByByte 0.0

There are many ways to check the size, but as a developer we dont have much access to query meta tables, I find this solution very easy (Note: if you are getting error message ORA-01653 ‘The ORA-01653 error is caused because you need to add space to a tablespace.’)

--Size of All Table Space

--1. Used Space
SELECT TABLESPACE_NAME,TO_CHAR(SUM(NVL(BYTES,0))/1024/1024/1024, '99,999,990.99') AS "USED SPACE(IN GB)" FROM USER_SEGMENTS GROUP BY TABLESPACE_NAME
--2. Free Space
SELECT TABLESPACE_NAME,TO_CHAR(SUM(NVL(BYTES,0))/1024/1024/1024, '99,999,990.99') AS "FREE SPACE(IN GB)" FROM   USER_FREE_SPACE GROUP BY TABLESPACE_NAME

--3. Both Free & Used
SELECT USED.TABLESPACE_NAME, USED.USED_BYTES AS "USED SPACE(IN GB)",  FREE.FREE_BYTES AS "FREE SPACE(IN GB)"
FROM
(SELECT TABLESPACE_NAME,TO_CHAR(SUM(NVL(BYTES,0))/1024/1024/1024, '99,999,990.99') AS USED_BYTES FROM USER_SEGMENTS GROUP BY TABLESPACE_NAME) USED
INNER JOIN
(SELECT TABLESPACE_NAME,TO_CHAR(SUM(NVL(BYTES,0))/1024/1024/1024, '99,999,990.99') AS FREE_BYTES FROM  USER_FREE_SPACE GROUP BY TABLESPACE_NAME) FREE
ON (USED.TABLESPACE_NAME = FREE.TABLESPACE_NAME);

Thanks

One of the way to browse your database is to use questoid sqlite manager.

# 1. Download questoid manager from this link .

# 2. Drop this file into your eclipse --> dropins.

# 3. Restart your eclipse.

# 4. Now go to your file explorer and click your database. you can find a blue database icon enabled in the top right corner.

# 5. Double click the icon and you can see ur inserted fields/tables/ in the database

CREATE TABLE #tmp
(
    sizeId Varchar(MAX)
)

INSERT  #tmp 
    VALUES ('44'),
        ('44,45,46'),
        ('44,45,46'),
        ('44,45,46'),
        ('44,45,46'),
        ('44,45,46'),
        ('44,45,46')


SELECT * FROM #tmp
DECLARE @SqlStr VARCHAR(MAX)

SELECT @SqlStr = STUFF((SELECT ',' + sizeId
              FROM #tmp
              ORDER BY sizeId
              FOR XML PATH('')), 1, 1, '') 


SELECT TOP 1 * FROM (
select items, count(*)AS Occurrence
  FROM dbo.Split(@SqlStr,',')
  group by items
  having count(*) > 1
  )K
  ORDER BY K.Occurrence DESC    

Exact syntax will of course depend upon database, but something like:

SELECT * FROM my_table WHERE (filename, Dates) IN (SELECT filename, Max(Dates) FROM my_table GROUP BY filename)

This will give you results exactly what you are asking for and displaying above. Fiddle: http://www.sqlfiddle.com/#!2/3af8a/1/0

Have you configured the jupyter_notebook_config.py file to allow external connections?

By default, Jupyter Notebook only accepts connections from localhost (eg, from the same computer that its running on). By modifying the NotebookApp.allow_origin option from the default ' ' to '*', you allow Jupyter to be accessed externally.

c.NotebookApp.allow_origin = '*' #allow all origins

You'll also need to change the IPs that the notebook will listen on:

c.NotebookApp.ip = '0.0.0.0' # listen on all IPs

Also see the details in a subsequent answer in this thread.

Documentation on the Jupyter Notebook config file.

If your intention was to find a way to represent null in an enumeration of singleton objects, then it's a bad idea to (de)reference null (it C++11, nullptr).

Why not declare static singleton object that represents NULL within the class as follows and add a cast-to-pointer operator that returns nullptr ?

Edit: Corrected several mistypes and added if-statement in main() to test for the cast-to-pointer operator actually working (which I forgot to.. my bad) - March 10 2015 -

// Error.h
class Error {
public:
  static Error& NOT_FOUND;
  static Error& UNKNOWN;
  static Error& NONE; // singleton object that represents null

public:
  static vector<shared_ptr<Error>> _instances;
  static Error& NewInstance(const string& name, bool isNull = false);

private:
  bool _isNull;
  Error(const string& name, bool isNull = false) : _name(name), _isNull(isNull) {};
  Error() {};
  Error(const Error& src) {};
  Error& operator=(const Error& src) {};

public:
  operator Error*() { return _isNull ? nullptr : this; }
};

// Error.cpp
vector<shared_ptr<Error>> Error::_instances;
Error& Error::NewInstance(const string& name, bool isNull = false)
{
  shared_ptr<Error> pNewInst(new Error(name, isNull)).
  Error::_instances.push_back(pNewInst);
  return *pNewInst.get();
}

Error& Error::NOT_FOUND = Error::NewInstance("NOT_FOUND");
//Error& Error::NOT_FOUND = Error::NewInstance("UNKNOWN"); Edit: fixed
//Error& Error::NOT_FOUND = Error::NewInstance("NONE", true); Edit: fixed
Error& Error::UNKNOWN = Error::NewInstance("UNKNOWN");
Error& Error::NONE = Error::NewInstance("NONE");

// Main.cpp
#include "Error.h"

Error& getError() {
  return Error::UNKNOWN;
}

// Edit: To see the overload of "Error*()" in Error.h actually working
Error& getErrorNone() {
  return Error::NONE;
}

int main(void) {
  if(getError() != Error::NONE) {
    return EXIT_FAILURE;
  }

  // Edit: To see the overload of "Error*()" in Error.h actually working
  if(getErrorNone() != nullptr) {
    return EXIT_FAILURE;
  }
}

In Pyspark, to run local spark application using Pycharm use below lines

os.environ['HADOOP_HOME'] = "C:\\winutils"
print os.environ['HADOOP_HOME']

Try this with

 std::min_element(v.begin(),v.end())

modify Romulo BM answer for velocity listening

func scrollViewWillEndDragging(
    _ scrollView: UIScrollView,
    withVelocity velocity: CGPoint,
    targetContentOffset: UnsafeMutablePointer<CGPoint>
) {
    targetContentOffset.pointee = scrollView.contentOffset
    var indexes = collection.indexPathsForVisibleItems
    indexes.sort()
    var index = indexes.first!
    if velocity.x > 0 {
       index.row += 1
    } else if velocity.x == 0 {
        let cell = self.collection.cellForItem(at: index)!
        let position = self.collection.contentOffset.x - cell.frame.origin.x
        if position > cell.frame.size.width / 2 {
           index.row += 1
        }
    }

    self.collection.scrollToItem(at: index, at: .centeredHorizontally, animated: true )
}

1. Where does user.id go after passport.serializeUser has been called?

The user id (you provide as the second argument of the done function) is saved in the session and is later used to retrieve the whole object via the deserializeUser function.

serializeUser determines which data of the user object should be stored in the session. The result of the serializeUser method is attached to the session as req.session.passport.user = {}. Here for instance, it would be (as we provide the user id as the key) req.session.passport.user = {id: 'xyz'}

2. We are calling passport.deserializeUser right after it where does it fit in the workflow?

The first argument of deserializeUser corresponds to the key of the user object that was given to the done function (see 1.). So your whole object is retrieved with help of that key. That key here is the user id (key can be any key of the user object i.e. name,email etc). In deserializeUser that key is matched with the in memory array / database or any data resource.

The fetched object is attached to the request object as req.user

Visual Flow

passport.serializeUser(function(user, done) {
    done(null, user.id);
});              ¦
                 ¦ 
                 ¦
                 +--------------------? saved to session
                                   ¦    req.session.passport.user = {id: '..'}
                                   ¦
                                   ?           
passport.deserializeUser(function(id, done) {
                   +---------------+
                   ¦
                   ? 
    User.findById(id, function(err, user) {
        done(err, user);
    });            +--------------? user object attaches to the request as req.user   
});

you can use success function, once see this jquery.ajax settings

 $('#ChangePermission').click(function(){
    $.ajax({
        url: 'change_permission.php',
        type: 'POST',
        data: {
        'user': document.GetElementById("user").value,
        'perm': document.GetElementById("perm").value
        }
       success:function(result)//we got the response
       {
        //you can try to write alert(result) to see what is the response,this result variable will contains what you prints in the php page
       }
    })
})

we can also have error() function

hope this helps you

Use print("use this bracket -sample text")

In Python 3 print "Hello world" gives invalid syntax error.

To display string content in Python3 have to use this ("Hello world") brackets.

HTML (ejs dianmic web page): this is a table list of all users and from nodejs generate the table. NodeJS provide dinamic "<%= user.id %>". simply change for any value like "54"

<span type="button" data-href='/admin/user/del/<%= user.id %>' class="item" 
 data-toggle="modal" data-target="#confirm_delete">
    <div data-toggle="tooltip" data-placement="top" title="Delete" data- 
     toggle="modal">
       <i class="zmdi zmdi-delete"></i> 
    </div>
</span>

<div class="modal fade" id="confirm_delete" tabindex="-1" role="dialog" aria-labelledby="staticModalLabel" aria-hidden="true"
         data-backdrop="static">
  <div class="modal-dialog modal-sm" role="document">
    <div class="modal-content">
      <div class="modal-header">
        <h5 class="modal-title" id="staticModalLabel">Static Modal</h5>
        <button type="button" class="close" data-dismiss="modal" aria-label="Close"> <span aria-hidden="true">&times;</span> </button>
      </div>
      <div class="modal-body">
        <p> This is a static modal, backdrop click will not close it. </p>
      </div>
      <div class="modal-footer">
        <button type="button" class="btn btn-secondary" data-dismiss="modal">Cancel</button>
          <form method="POST" class="btn-ok">
            <input  type="submit" class="btn btn-danger" value="Confirm"></input>
        </form>
      </div>
    </div>
  </div>
</div>
<!-- end modal static --> 

JS:

    $(document).ready(function(){
        $('#confirm_delete').on('show.bs.modal', function(e) {
            $(this).find('.btn-ok').attr('action', $(e.relatedTarget).data('href'));
        });
    });

I change the class with implements TextWatcher to use Brasil currency formats and adjusting cursor position when editing the value.

public class MoneyTextWatcher implements TextWatcher {

    private EditText editText;

    private String lastAmount = "";

    private int lastCursorPosition = -1;

    public MoneyTextWatcher(EditText editText) {
        super();
        this.editText = editText;
    }

    @Override
    public void onTextChanged(CharSequence amount, int start, int before, int count) {

        if (!amount.toString().equals(lastAmount)) {

            String cleanString = clearCurrencyToNumber(amount.toString());

            try {

                String formattedAmount = transformToCurrency(cleanString);
                editText.removeTextChangedListener(this);
                editText.setText(formattedAmount);
                editText.setSelection(formattedAmount.length());
                editText.addTextChangedListener(this);

                if (lastCursorPosition != lastAmount.length() && lastCursorPosition != -1) {
                    int lengthDelta = formattedAmount.length() - lastAmount.length();
                    int newCursorOffset = max(0, min(formattedAmount.length(), lastCursorPosition + lengthDelta));
                    editText.setSelection(newCursorOffset);
                }
            } catch (Exception e) {
               //log something
            }
        }
    }

    @Override
    public void afterTextChanged(Editable s) {
    }

    @Override
    public void beforeTextChanged(CharSequence s, int start, int count, int after) {
        String value = s.toString();
        if(!value.equals("")){
            String cleanString = clearCurrencyToNumber(value);
            String formattedAmount = transformToCurrency(cleanString);
            lastAmount = formattedAmount;
            lastCursorPosition = editText.getSelectionStart();
        }
    }

    public static String clearCurrencyToNumber(String currencyValue) {
        String result = null;

        if (currencyValue == null) {
            result = "";
        } else {
            result = currencyValue.replaceAll("[(a-z)|(A-Z)|($,. )]", "");
        }
        return result;
    }

    public static boolean isCurrencyValue(String currencyValue, boolean podeSerZero) {
        boolean result;

        if (currencyValue == null || currencyValue.length() == 0) {
            result = false;
        } else {
            if (!podeSerZero && currencyValue.equals("0,00")) {
                result = false;
            } else {
                result = true;
            }
        }
        return result;
    }

    public static String transformToCurrency(String value) {
        double parsed = Double.parseDouble(value);
        String formatted = NumberFormat.getCurrencyInstance(new Locale("pt", "BR")).format((parsed / 100));
        formatted = formatted.replaceAll("[^(0-9)(.,)]", "");
        return formatted;
    }
}

Only one thing more: when you´re using the "crasis variable assignment" you need to use double cotes too AND you do not need to use the "input" word!:

valInput  = $(`[name="${inputNameHere}"]`).val();

when you have Failed to connect to remote VM Connection refused error, restart your eclipse

All the setting are stored in .metadata file in your workspace delete this and you are good to go

String withoutQuotes_line1 = line1.replace("\"", "");

have a look here

Put it inside your <footer> by all means, but the most fitting element is the small element.

The HTML5 spec for this says:

Small print typically features disclaimers, caveats, legal restrictions, or copyrights. Small print is also sometimes used for attribution, or for satisfying licensing requirements.

An identifying relationship is between two strong entities. A non-identifying relationship may not always be a relationship between a strong entity and a weak entity. There may exist a situation where a child itself has a primary key but existence of its entity may depend on its parent entity.

For example : a relationship between a seller and a book where a book is being sold by a seller may exist where seller may have its own primary key but its entity is created only when a book is being sold

Reference based on Bill Karwin

With BDD it's

@Test
public void testOrderWithBDD() {


    // Given
    ServiceClassA firstMock = mock(ServiceClassA.class);
    ServiceClassB secondMock = mock(ServiceClassB.class);

    //create inOrder object passing any mocks that need to be verified in order
    InOrder inOrder = inOrder(firstMock, secondMock);

    willDoNothing().given(firstMock).methodOne();
    willDoNothing().given(secondMock).methodTwo();

    // When
    firstMock.methodOne();
    secondMock.methodTwo();

    // Then
    then(firstMock).should(inOrder).methodOne();
    then(secondMock).should(inOrder).methodTwo();


}

Clean and Simple -

$selectquery="SELECT id FROM tableName ORDER BY id DESC LIMIT 1";
$result = $mysqli->query($selectquery);
$row = $result->fetch_assoc();
echo $row['id'];

I am facing small trouble in returning a value from callback function in Node.js

This is not a "small trouble", it is actually impossible to "return" a value in the traditional sense from an asynchronous function.

Since you cannot "return the value" you must call the function that will need the value once you have it. @display_name already answered your question, but I just wanted to point out that the return in doCall is not returning the value in the traditional way. You could write doCall as follow:

function doCall(urlToCall, callback) {
    urllib.request(urlToCall, { wd: 'nodejs' }, function (err, data, response) {                              
        var statusCode = response.statusCode;
        finalData = getResponseJson(statusCode, data.toString());
        // call the function that needs the value
        callback(finalData);
        // we are done
        return;
    });
}

Line callback(finalData); is what calls the function that needs the value that you got from the async function. But be aware that the return statement is used to indicate that the function ends here, but it does not mean that the value is returned to the caller (the caller already moved on.)

For completeness -- also check phpCallGraph.

Declare array as global across subs in a application:

Public GlobalArray(10) as String
GlobalArray = Array('A', 'B', 'C', 'D', 'E', 'F', 'G', 'H', 'I', 'J', 'K', 'L')

Sub DisplayArray()
    Dim i As Integer

    For i = 0 to UBound(GlobalArray, 1)
        MsgBox GlobalArray(i)

    Next i
End Sub

Method 2: Pass an array to sub. Use ParamArray.

Sub DisplayArray(Name As String, ParamArray Arr() As Variant)
    Dim i As Integer

    For i = 0 To UBound(Arr())
        MsgBox Name & ": " & Arr(i)
    Next i
End Sub

ParamArray must be the last parameter.

With CMake, it's generally recommended to do an "out of source" build. Create your CMakeLists.txt in the root of your project. Then from the root of your project:

mkdir Release
cd Release
cmake -DCMAKE_BUILD_TYPE=Release ..
make

And for Debug (again from the root of your project):

mkdir Debug
cd Debug
cmake -DCMAKE_BUILD_TYPE=Debug ..
make

Release / Debug will add the appropriate flags for your compiler. There are also RelWithDebInfo and MinSizeRel build configurations.

You can modify/add to the flags by specifying a toolchain file in which you can add CMAKE_<LANG>_FLAGS_<CONFIG>_INIT variables, e.g.:

set(CMAKE_CXX_FLAGS_DEBUG_INIT "-Wall")
set(CMAKE_CXX_FLAGS_RELEASE_INIT "-Wall")

See CMAKE_BUILD_TYPE for more details.

As for your third question, I'm not sure what you are asking exactly. CMake should automatically detect and use the compiler appropriate for your different source files.

One might also use, works ok in all browsers, require javascript:

onselectstart = (e) => {e.preventDefault()}

Example:

onselectstart = (e) => {_x000D_
  e.preventDefault()_x000D_
  console.log("nope!")_x000D_
  }

Select me!

One other js alternative, by testing CSS supports, and disable userSelect, or MozUserSelect for Firefox.

let FF_x000D_
if (CSS.supports("( -moz-user-select: none )")){FF = 1} else {FF = 0}_x000D_
(FF===1) ? document.body.style.MozUserSelect="none" : document.body.style.userSelect="none"

Select me!

Pure css, same logic. Warning you will have to extend those rules to every browser, this can be verbose.

@supports (user-select:none) {_x000D_
  div {_x000D_
    user-select:none_x000D_
  }_x000D_
}_x000D_
_x000D_
@supports (-moz-user-select:none) {_x000D_
  div {_x000D_
    -moz-user-select:none_x000D_
  }_x000D_
}

<div>Select me!</div>

git stash 

did the job, It restored the files that I had deleted using rm instead of git rm.

I did first a checkout of the last hash, but I do not believe it is required.

You can get it with:

var html = new System.Net.WebClient().DownloadString(siteUrl)

Just using Data Binding syntax. For example,

<Button x:Name="btn" 
         Content="Click" 
         Command="{Binding ClickCmd}" 
         CommandParameter="{Binding ElementName=btn,Path=Content}" /> 

Not only can we use Data Binding to get some data from View Models, but also pass data back to View Models. In CommandParameter, must use ElementName to declare binding source explicitly.

In case you need more shorting your code, you can creating new type for helper

type Strings []string

func (ss Strings) ToInterfaceSlice() []interface{} {
    iface := make([]interface{}, len(ss))
    for i := range ss {
        iface[i] = ss[i]
    }
    return iface
}

then

a := []strings{"a", "b", "c", "d"}
sliceIFace := Strings(a).ToInterfaceSlice()

I tried everything on my end and ended up with the following.

I had the first line as:

<?xmlversion="1.0"encoding="utf-8"?>

And I was missing two spaces there, and it should be:

<?xml version="1.0" encoding="utf-8"?>

Before the version and before the encoding there should be a space.

I improved on the solution that uses a regex by Pinhassi so it also handles the edge cases correctly. Before checking if the input is correct, first the final string is constructed as described by the android docs.

public class DecimalDigitsInputFilter implements InputFilter {

    private Pattern mPattern;

    private static final Pattern mFormatPattern = Pattern.compile("\\d+\\.\\d+");

    public DecimalDigitsInputFilter(int digitsBeforeDecimal, int digitsAfterDecimal) {
        mPattern = Pattern.compile(
            "^\\d{0," + digitsBeforeDecimal + "}([\\.,](\\d{0," + digitsAfterDecimal +
                "})?)?$");
    }

    @Override
    public CharSequence filter(CharSequence source, int start, int end, Spanned dest, 
                               int dstart, int dend) {

        String newString =
            dest.toString().substring(0, dstart) + source.toString().substring(start, end) 
            + dest.toString().substring(dend, dest.toString().length());

        Matcher matcher = mPattern.matcher(newString);
        if (!matcher.matches()) {
            return "";
        }
        return null;
    }
}

Usage:

editText.setFilters(new InputFilter[] {new DecimalDigitsInputFilter(5,2)});

You could use the DirectoryInfo and FileInfo classes.

//GetFiles on DirectoryInfo returns a FileInfo object.
var pdfFiles = new DirectoryInfo("C:\\Documents").GetFiles("*.pdf");

//FileInfo has a Name property that only contains the filename part.
var firstPdfFilename = pdfFiles[0].Name;

The default configuration of most SMTP servers is not to relay from an untrusted source to outside domains. For example, imagine that you contact the SMTP server for foo.com and ask it to send a message to [email protected]. Because the SMTP server doesn't really know who you are, it will refuse to relay the message. If the server did do that for you, it would be considered an open relay, which is how spammers often do their thing.

If you contact the foo.com mail server and ask it to send mail to [email protected], it might let you do it. It depends on if they trust that you're who you say you are. Often, the server will try to do a reverse DNS lookup, and refuse to send mail if the IP you're sending from doesn't match the IP address of the MX record in DNS. So if you say that you're the bar.com mail server but your IP address doesn't match the MX record for bar.com, then it will refuse to deliver the message.

You'll need to talk to the administrator of that SMTP server to get the authentication information so that it will allow relay for you. You'll need to present those credentials when you contact the SMTP server. Usually it's either a user name/password, or it can use Windows permissions. Depends on the server and how it's configured.

See Unable to send emails to external domain using SMTP for an example of how to send the credentials.

If you are connecting to the internet behind a proxy, there might be problem in running the some commands.

Set the environment variables for proxy configuration in the command prompt as follows:

set http_proxy=http://username:password@proxyserver:proxyport
set https_proxy=https://username:password@proxyserver:proxyport

Yes, in 1980; in 2008? depends

When I started programming professionally the speed dominance of Fortran was just being challenged. I remember reading about it in Dr. Dobbs and telling the older programmers about the article--they laughed.

So I have two views about this, theoretical and practical. In theory Fortran today has no intrinsic advantage to C/C++ or even any language that allows assembly code. In practice Fortran today still enjoys the benefits of legacy of a history and culture built around optimization of numerical code.

Up until and including Fortran 77, language design considerations had optimization as a main focus. Due to the state of compiler theory and technology, this often meant restricting features and capability in order to give the compiler the best shot at optimizing the code. A good analogy is to think of Fortran 77 as a professional race car that sacrifices features for speed. These days compilers have gotten better across all languages and features for programmer productivity are more valued. However, there are still places where the people are mainly concerned with speed in scientific computing; these people most likely have inherited code, training and culture from people who themselves were Fortran programmers.

When one starts talking about optimization of code there are many issues and the best way to get a feel for this is to lurk where people are whose job it is to have fast numerical code. But keep in mind that such critically sensitive code is usually a small fraction of the overall lines of code and very specialized: A lot of Fortran code is just as "inefficient" as a lot of other code in other languages and optimization should not even be a primary concern of such code.

A wonderful place to start in learning about the history and culture of Fortran is wikipedia. The Fortran Wikipedia entry is superb and I very much appreciate those who have taken the time and effort to make it of value for the Fortran community.

(A shortened version of this answer would have been a comment in the excellent thread started by Nils but I don't have the karma to do that. Actually, I probably wouldn't have written anything at all but for that this thread has actual information content and sharing as opposed to flame wars and language bigotry, which is my main experience with this subject. I was overwhelmed and had to share the love.)

Is this what you are looking for?

 If ActiveCell.Value == "Total" Then

    ActiveCell.offset(1,0).Value = "-"

 End If

Of you could do something like this

 Dim celltxt As String
 celltxt = ActiveSheet.Range("C6").Text
 If InStr(1, celltxt, "Total") Then
    ActiveCell.offset(1,0).Value = "-"
 End If

Which is similar to what you have.

You should use thenReturn or doReturn when you know the return value at the time you mock a method call. This defined value is returned when you invoke the mocked method.

thenReturn(T value) Sets a return value to be returned when the method is called.

@Test
public void test_return() throws Exception {
    Dummy dummy = mock(Dummy.class);
    int returnValue = 5;

    // choose your preferred way
    when(dummy.stringLength("dummy")).thenReturn(returnValue);
    doReturn(returnValue).when(dummy).stringLength("dummy");
}

Answer is used when you need to do additional actions when a mocked method is invoked, e.g. when you need to compute the return value based on the parameters of this method call.

Use doAnswer() when you want to stub a void method with generic Answer.

Answer specifies an action that is executed and a return value that is returned when you interact with the mock.

@Test
public void test_answer() throws Exception {
    Dummy dummy = mock(Dummy.class);
    Answer<Integer> answer = new Answer<Integer>() {
        public Integer answer(InvocationOnMock invocation) throws Throwable {
            String string = invocation.getArgumentAt(0, String.class);
            return string.length() * 2;
        }
    };

    // choose your preferred way
    when(dummy.stringLength("dummy")).thenAnswer(answer);
    doAnswer(answer).when(dummy).stringLength("dummy");
}

There is no such functionality in jQuery. Use JSON.stringify or alternatively any jQuery plugin with similar functionality (e.g jquery-json).

You cannot play two animations since the attribute can be defined only once. Rather why don't you include the second animation in the first and adjust the keyframes to get the timing right?

.image {_x000D_
    position: absolute;_x000D_
    top: 50%;_x000D_
    left: 50%;_x000D_
    width: 120px;_x000D_
    height: 120px;_x000D_
    margin:-60px 0 0 -60px;_x000D_
    -webkit-animation:spin-scale 4s linear infinite;_x000D_
}_x000D_
_x000D_
@-webkit-keyframes spin-scale { _x000D_
    50%{_x000D_
        transform: rotate(360deg) scale(2);_x000D_
    }_x000D_
    100% { _x000D_
        transform: rotate(720deg) scale(1);_x000D_
    } _x000D_
}

<img class="image" src="http://makeameme.org/media/templates/120/grumpy_cat.jpg" alt="" width="120" height="120">

[[ There are some good answers here but I find that they still are lacking a bit of information. ]]

return (new StringBuilder("select id1, " + " id2 " + " from " + " table"))
     .toString();

So as you point out, the example you give is a simplistic but let's analyze it anyway. What happens here is the compiler actually does the + work here because "select id1, " + " id2 " + " from " + " table" are all constants. So this turns into:

return new StringBuilder("select id1,  id2  from  table").toString();

In this case, obviously, there is no point in using StringBuilder. You might as well do:

// the compiler combines these constant strings
return "select id1, " + " id2 " + " from " + " table";

However, even if you were appending any fields or other non-constants then the compiler would use an internal StringBuilder -- there's no need for you to define one:

// an internal StringBuilder is used here
return "select id1, " + fieldName + " from " + tableName;

Under the covers, this turns into code that is approximately equivalent to:

StringBuilder sb = new StringBuilder("select id1, ");
sb.append(fieldName).append(" from ").append(tableName);
return sb.toString();

Really the only time you need to use StringBuilder directly is when you have conditional code. For example, code that looks like the following is desperate for a StringBuilder:

// 1 StringBuilder used in this line
String query = "select id1, " + fieldName + " from " + tableName;
if (where != null) {
   // another StringBuilder used here
   query += ' ' + where;
}

The + in the first line uses one StringBuilder instance. Then the += uses another StringBuilder instance. It is more efficient to do:

// choose a good starting size to lower chances of reallocation
StringBuilder sb = new StringBuilder(64);
sb.append("select id1, ").append(fieldName).append(" from ").append(tableName);
// conditional code
if (where != null) {
   sb.append(' ').append(where);
}
return sb.toString();

Another time that I use a StringBuilder is when I'm building a string from a number of method calls. Then I can create methods that take a StringBuilder argument:

private void addWhere(StringBuilder sb) {
   if (where != null) {
      sb.append(' ').append(where);
   }
}

When you are using a StringBuilder, you should watch for any usage of + at the same time:

sb.append("select " + fieldName);

That + will cause another internal StringBuilder to be created. This should of course be:

sb.append("select ").append(fieldName);

Lastly, as @T.J.rowder points out, you should always make a guess at the size of the StringBuilder. This will save on the number of char[] objects created when growing the size of the internal buffer.

In my case I had to compare two Integers for equality where both of them could be null. Searched similar topic, didn't found anything elegant for this. Came up with a simple utility functions.

public static boolean integersEqual(Integer i1, Integer i2) {
    if (i1 == null && i2 == null) {
        return true;
    }
    if (i1 == null && i2 != null) {
        return false;
    }
    if (i1 != null && i2 == null) {
        return false;
    }
    return i1.intValue() == i2.intValue();
}

//considering null is less than not-null
public static int integersCompare(Integer i1, Integer i2) {
    if (i1 == null && i2 == null) {
        return 0;
    }
    if (i1 == null && i2 != null) {
        return -1;
    }
    return i1.compareTo(i2);
}

An alternative way is using raw SQL mode with SQLAlchemy, I use SQLAlchemy 0.9.8, python 2.7, MySQL 5.X, and MySQL-Python as connector, in this case, a tuple is needed. My code listed below:

id_list = [1, 2, 3, 4, 5] # in most case we have an integer list or set
s = text('SELECT id, content FROM myTable WHERE id IN :id_list')
conn = engine.connect() # get a mysql connection
rs = conn.execute(s, id_list=tuple(id_list)).fetchall()

Hope everything works for you.

A couple of reasons that this can happen:

1) You see this error with an incorrect namespace, or a typo in the attribute. Like 'xmlns' is wrong, it should be xmlns:android

2) First node needs to contain: xmlns:android="http://schemas.android.com/apk/res/android"

3) If you are integrating AdMob, check custom parameters like ads:adSize, you need

xmlns:ads="http://schemas.android.com/apk/lib/com.google.ads"

4) If you are using LinearLayout you might have to define tools:

xmlns:tools="http://schemas.android.com/tools"

In 2019 you can use querySelector for that.

It's supported by most browsers (https://caniuse.com/#search=querySelector)

document.querySelector('body').appendChild(i);

variable=" Hello..."  
print (variable)  
print("This is the Test File "+variable)  

for integer type ...

variable="  10"  
print (variable)  
print("This is the Test File "+str(variable))  

I like SQuirreL SQL Client, and NetBeans is very useful; but more often, I just fire up the built-in org.h2.tools.Server and browse port 8082:

$ java -cp /opt/h2/bin/h2.jar org.h2.tools.Server -help
Starts the H2 Console (web-) server, TCP, and PG server.
Usage: java org.h2.tools.Server 
When running without options, -tcp, -web, -browser and -pg are started.
Options are case sensitive. Supported options are:
[-help] or [-?]         Print the list of options
[-web]                  Start the web server with the H2 Console
[-webAllowOthers]       Allow other computers to connect - see below
[-webPort ]       The port (default: 8082)
[-webSSL]               Use encrypted (HTTPS) connections
[-browser]              Start a browser and open a page to connect to the web server
[-tcp]                  Start the TCP server
[-tcpAllowOthers]       Allow other computers to connect - see below
[-tcpPort ]       The port (default: 9092)
[-tcpSSL]               Use encrypted (SSL) connections
[-tcpPassword ]    The password for shutting down a TCP server
[-tcpShutdown ""]  Stop the TCP server; example: tcp://localhost:9094
[-tcpShutdownForce]     Do not wait until all connections are closed
[-pg]                   Start the PG server
[-pgAllowOthers]        Allow other computers to connect - see below
[-pgPort ]        The port (default: 5435)
[-baseDir ]        The base directory for H2 databases; for all servers
[-ifExists]             Only existing databases may be opened; for all servers
[-trace]                Print additional trace information; for all servers

It seems like you have it worked out, but for others looking for this answer, an easy way to do this is by printing to stderr. You can do that like this:

from __future__ import print_function # In python 2.7
import sys

@app.route('/button/')
def button_clicked():
    print('Hello world!', file=sys.stderr)
    return redirect('/')

Flask will display things printed to stderr in the console. For other ways of printing to stderr, see this stackoverflow post

If you have no FIRST/FIRST conflicts and no FIRST/FOLLOW conflicts, your grammar is LL(1).

An example of a FIRST/FIRST conflict:

S -> Xb | Yc
X -> a 
Y -> a 

By seeing only the first input symbol a, you cannot know whether to apply the production S -> Xb or S -> Yc, because a is in the FIRST set of both X and Y.

An example of a FIRST/FOLLOW conflict:

S -> AB 
A -> fe | epsilon 
B -> fg 

By seeing only the first input symbol f, you cannot decide whether to apply the production A -> fe or A -> epsilon, because f is in both the FIRST set of A and the FOLLOW set of A (A can be parsed as epsilon and B as f).

Notice that if you have no epsilon-productions you cannot have a FIRST/FOLLOW conflict.

This should work.

$.ajax({
    type: 'get',
    url: '/public/index',
    dataType: 'script',
    data: data_send,
    success: function() {
        $('.skills_section').slick('reinit');
      }
});

You set a boolean value in the state (e.g. 'show)', and then do:

var style = {};
if (!this.state.show) {
  style.display = 'none'
}

return <div style={style}>...</div>

Use "whereis" command.

$ whereis tomcat8
tomcat8: /usr/sbin/tomcat8 /etc/tomcat8 /usr/libexec/tomcat8 /usr/share/tomcat8

Use the ASCII to Integer atoi() function which accepts a string and converts it into an integer:

#include <stdlib.h>

int num = atoi("23"); // 23

If the string contains a decimal, the number will be truncated:

int num = atoi("23.21"); // 23

In Your Controller

$scope.clearSearch = function() {
     $scope.searchAll = '';
}