Using some reflection and generics in two extension methods you can achieve that.

Right, others did mostly the same solution, but this uses less reflection which is more performance-wise and way more readable:

public static class ObjectExtensions
{
    public static T ToObject<T>(this IDictionary<string, object> source)
        where T : class, new()
    {
            var someObject = new T();
            var someObjectType = someObject.GetType();

            foreach (var item in source)
            {
                someObjectType
                         .GetProperty(item.Key)
                         .SetValue(someObject, item.Value, null);
            }

            return someObject;
    }

    public static IDictionary<string, object> AsDictionary(this object source, BindingFlags bindingAttr = BindingFlags.DeclaredOnly | BindingFlags.Public | BindingFlags.Instance)
    {
        return source.GetType().GetProperties(bindingAttr).ToDictionary
        (
            propInfo => propInfo.Name,
            propInfo => propInfo.GetValue(source, null)
        );

    }
}

class A
{
    public string Prop1
    {
        get;
        set;
    }

    public int Prop2
    {
        get;
        set;
    }
}

class Program
{
    static void Main(string[] args)
    {
        Dictionary<string, object> dictionary = new Dictionary<string, object>();
        dictionary.Add("Prop1", "hello world!");
        dictionary.Add("Prop2", 3893);
        A someObject = dictionary.ToObject<A>();

        IDictionary<string, object> objectBackToDictionary = someObject.AsDictionary();
    }
}

This variant looks more simple and elegant.

CollectionType typeReference =
    TypeFactory.defaultInstance().constructCollectionType(List.class, Dto.class);
List<Dto> resultDto = objectMapper.readValue(content, typeReference);

I am aware that this question already has many good answers, but I wanted to share this very neat solution that also takes care of duplicate values:

def dict_reverser(d):
    seen = set()
    return {v: k for k, v in d.items() if v not in seen or seen.add(v)}

This relies on the fact that set.add always returns None in Python.

map transform one event to another. flatMap transform one event to zero or more event. (this is taken from IntroToRx)

As you want to transform your json to an object, using map should be enough.

Dealing with the FileNotFoundException is another problem (using map or flatmap wouldn't solve this issue).

To solve your Exception problem, just throw it with a Non checked exception : RX will call the onError handler for you.

Observable.from(jsonFile).map(new Func1<File, String>() {
    @Override public String call(File file) {
        try {
            return new Gson().toJson(new FileReader(file), Object.class);
        } catch (FileNotFoundException e) {
            // this exception is a part of rx-java
            throw OnErrorThrowable.addValueAsLastCause(e, file);
        }
    }
});

the exact same version with flatmap :

Observable.from(jsonFile).flatMap(new Func1<File, Observable<String>>() {
    @Override public Observable<String> call(File file) {
        try {
            return Observable.just(new Gson().toJson(new FileReader(file), Object.class));
        } catch (FileNotFoundException e) {
            // this static method is a part of rx-java. It will return an exception which is associated to the value.
            throw OnErrorThrowable.addValueAsLastCause(e, file);
            // alternatively, you can return Obersable.empty(); instead of throwing exception
        }
    }
});

You can return too, in the flatMap version a new Observable that is just an error.

Observable.from(jsonFile).flatMap(new Func1<File, Observable<String>>() {
    @Override public Observable<String> call(File file) {
        try {
            return Observable.just(new Gson().toJson(new FileReader(file), Object.class));
        } catch (FileNotFoundException e) {
            return Observable.error(OnErrorThrowable.addValueAsLastCause(e, file));
        }
    }
});

You're almost here, you're just missing a few things:

PUT /test
{
  "mappings": {
    "type_name": {                <--- add the type name
      "properties": {             <--- enclose all field definitions in "properties"
        "field1": {
          "type": "integer"
        },
        "field2": {
          "type": "integer"
        },
        "field3": {
          "type": "string",
          "index": "not_analyzed"
        },
        "field4,": {
          "type": "string",
          "analyzer": "autocomplete",
          "search_analyzer": "standard"
        }
      }
    }
  },
  "settings": {
     ...
  }
}

UPDATE

If your index already exists, you can also modify your mappings like this:

PUT test/_mapping/type_name
{
    "properties": {             <--- enclose all field definitions in "properties"
        "field1": {
          "type": "integer"
        },
        "field2": {
          "type": "integer"
        },
        "field3": {
          "type": "string",
          "index": "not_analyzed"
        },
        "field4,": {
          "type": "string",
          "analyzer": "autocomplete",
          "search_analyzer": "standard"
        }
    }
}

UPDATE:

As of ES 7, mapping types have been removed. You can read more details here

Here is an extension of @DoctorJ 's code to unbounded integers based on the method given by @nawfal. It can encode and decode. It works with normal arrays and numpy arrays.

#!/usr/bin/env python
from numbers import Integral    

def tuple_to_int(tup):
    """:Return: the unique non-negative integer encoding of a tuple of non-negative integers."""
    if len(tup) == 0:  # normally do if not tup, but doesn't work with np
        raise ValueError('Cannot encode empty tuple')
    if len(tup) == 1:
        x = tup[0]
        if not isinstance(x, Integral):
            raise ValueError('Can only encode integers')
        return x
    elif len(tup) == 2:
        # print("len=2")
        x, y = tuple_to_int(tup[0:1]), tuple_to_int(tup[1:2])  # Just to validate x and y

        X = 2 * x if x >= 0 else -2 * x - 1  # map x to positive integers
        Y = 2 * y if y >= 0 else -2 * y - 1  # map y to positive integers
        Z = (X * X + X + Y) if X >= Y else (X + Y * Y)  # encode

        # Map evens onto positives
        if (x >= 0 and y >= 0):
            return Z // 2
        elif (x < 0 and y >= 0 and X >= Y):
            return Z // 2
        elif (x < 0 and y < 0 and X < Y):
            return Z // 2
        # Map odds onto negative
        else:
            return (-Z - 1) // 2
    else:
        return tuple_to_int((tuple_to_int(tup[:2]),) + tuple(tup[2:]))  # ***speed up tuple(tup[2:])?***


def int_to_tuple(num, size=2):
    """:Return: the unique tuple of length `size` that encodes to `num`."""
    if not isinstance(num, Integral):
        raise ValueError('Can only encode integers (got {})'.format(num))
    if not isinstance(size, Integral) or size < 1:
        raise ValueError('Tuple is the wrong size ({})'.format(size))
    if size == 1:
        return (num,)
    elif size == 2:

        # Mapping onto positive integers
        Z = -2 * num - 1 if num < 0 else 2 * num

        # Reversing Pairing
        s = isqrt(Z)
        if Z - s * s < s:
            X, Y = Z - s * s, s
        else:
            X, Y = s, Z - s * s - s

        # Undoing mappint to positive integers
        x = (X + 1) // -2 if X % 2 else X // 2  # True if X not divisible by 2
        y = (Y + 1) // -2 if Y % 2 else Y // 2  # True if Y not divisible by 2

        return x, y

    else:
        x, y = int_to_tuple(num, 2)
        return int_to_tuple(x, size - 1) + (y,)


def isqrt(n):
    """":Return: the largest integer x for which x * x does not exceed n."""
    # Newton's method, via http://stackoverflow.com/a/15391420
    x = n
    y = (x + 1) // 2
    while y < x:
        x = y
        y = (x + n // x) // 2
    return x

I prefer this (below):

public class User
{
    public int Id { get; set; }
    public int? CountryId { get; set; }
    [ForeignKey("CountryId")]
    public virtual Country Country { get; set; }
}

Because EF was creating 2 foreign keys in the database table: CountryId, and CountryId1, but the code above fixed that.

Sounds like you want a simple imagemap, I'd recommend to not make it more complex than it needs to be. Here's an article on how to improve imagemaps with svg. It's very easy to do clickable regions in svg itself, just add some <a> elements around the shapes you want to have clickable.

A couple of options if you need something more advanced:

• http://jqvmap.com/
• http://jvectormap.com/
• http://polymaps.org/

Just to expand on @splattne's answer a little:

MapPath(string virtualPath) calls the following:

public string MapPath(string virtualPath)
{
    return this.MapPath(VirtualPath.CreateAllowNull(virtualPath));
}

MapPath(VirtualPath virtualPath) in turn calls MapPath(VirtualPath virtualPath, VirtualPath baseVirtualDir, bool allowCrossAppMapping) which contains the following:

//...
if (virtualPath == null)
{
    virtualPath = VirtualPath.Create(".");
}
//...

So if you call MapPath(null) or MapPath(""), you are effectively calling MapPath(".")

This is a possible generic implementation using a bit of reflection (pseudo-code, don't have VS now):

public class DtoMapper<DtoType>
{
    Dictionary<string,PropertyInfo> properties;

    public DtoMapper()
    {
        // Cache property infos
        var t = typeof(DtoType);
        properties = t.GetProperties().ToDictionary(p => p.Name, p => p);
     }

    public DtoType Map(Dto dto)
    {
        var instance = Activator.CreateInstance(typeOf(DtoType));

        foreach(var p in properties)
        {
            p.SetProperty(
                instance, 
                Convert.Type(
                    p.PropertyType, 
                    dto.Items[Array.IndexOf(dto.ItemsNames, p.Name)]);

            return instance;
        }
    }

Usage:

var mapper = new DtoMapper<Model>();
var modelInstance = mapper.Map(dto);

This will be slow when you create the mapper instance but much faster later.

If you care about getting coordinates based on an ellipsoid rather than a sphere, take a look at Geographic_coordinate_conversion - it gives the formulae. GEodetic Datum has the WGS84 constants you need for the conversion.

The formulae there also take into account the altitude relative to the reference ellipsoid surface (useful if you are getting altitude data from a GPS device).

This thing is empty nested list from which ne will append data to empty dict

ls = [['a','a1','a2','a3'],['b','b1','b2','b3'],['c','c1','c2','c3'], 
['d','d1','d2','d3']]

this means to create four empty dict inside data_dict

data_dict = {f'dict{i}':{} for i in range(4)}
for i in range(4):
    upd_dict = {'val' : ls[i][0], 'val1' : ls[i][1],'val2' : ls[i][2],'val3' : ls[i][3]}

    data_dict[f'dict{i}'].update(upd_dict)

print(data_dict)

The output

{'dict0': {'val': 'a', 'val1': 'a1', 'val2': 'a2', 'val3': 'a3'}, 'dict1': {'val': 'b', 'val1': 'b1', 'val2': 'b2', 'val3': 'b3'},'dict2': {'val': 'c', 'val1': 'c1', 'val2': 'c2', 'val3': 'c3'}, 'dict3': {'val': 'd', 'val1': 'd1', 'val2': 'd2', 'val3': 'd3'}}

I think the Vim documentation should've explained the meaning behind the naming of these commands. Just telling you what they do doesn't help you remember the names.

map is the "root" of all recursive mapping commands. The root form applies to "normal", "visual+select", and "operator-pending" modes. (I'm using the term "root" as in linguistics.)

noremap is the "root" of all non-recursive mapping commands. The root form applies to the same modes as map. (Think of the nore prefix to mean "non-recursive".)

(Note that there are also the ! modes like map! that apply to insert & command-line.)

See below for what "recursive" means in this context.

Prepending a mode letter like n modify the modes the mapping works in. It can choose a subset of the list of applicable modes (e.g. only "visual"), or choose other modes that map wouldn't apply to (e.g. "insert").

Use help map-modes will show you a few tables that explain how to control which modes the mapping applies to.

Mode letters:

• n: normal only
• v: visual and select
• o: operator-pending
• x: visual only
• s: select only
• i: insert
• c: command-line
• l: insert, command-line, regexp-search (and others. Collectively called "Lang-Arg" pseudo-mode)

"Recursive" means that the mapping is expanded to a result, then the result is expanded to another result, and so on.

The expansion stops when one of these is true:

1. the result is no longer mapped to anything else.
2. a non-recursive mapping has been applied (i.e. the "noremap" [or one of its ilk] is the final expansion).

At that point, Vim's default "meaning" of the final result is applied/executed.

"Non-recursive" means the mapping is only expanded once, and that result is applied/executed.

Example:

 nmap K H
 nnoremap H G
 nnoremap G gg

The above causes K to expand to H, then H to expand to G and stop. It stops because of the nnoremap, which expands and stops immediately. The meaning of G will be executed (i.e. "jump to last line"). At most one non-recursive mapping will ever be applied in an expansion chain (it would be the last expansion to happen).

The mapping of G to gg only applies if you press G, but not if you press K. This mapping doesn't affect pressing K regardless of whether G was mapped recursively or not, since it's line 2 that causes the expansion of K to stop, so line 3 wouldn't be used.

You could try Dozer.

Dozer is a Java Bean to Java Bean mapper that recursively copies data from one object to another. Typically, these Java Beans will be of different complex types.

Dozer supports simple property mapping, complex type mapping, bi-directional mapping, implicit-explicit mapping, as well as recursive mapping. This includes mapping collection attributes that also need mapping at the element level.

Use DECIMAL(8,6) for latitude (90 to -90 degrees) and DECIMAL(9,6) for longitude (180 to -180 degrees). 6 decimal places is fine for most applications. Both should be "signed" to allow for negative values.

I ran into a problem with this as well as my JUnit assertEquals were failing comparing Dates to Hibernate emitted 'java.util.Date' types (which as described in the question are really Timestamps). It turns out that by changing the mapping to 'date' rather than 'java.util.Date' Hibernate generates java.util.Date members. I am using an XML mapping file with Hibernate version 4.1.12.

This version emits 'java.util.Timestamp':

<property name="date" column="DAY" type="java.util.Date" unique-key="KONSTRAINT_DATE_IDX" unique="false" not-null="true" />

This version emits 'java.util.Date':

<property name="date" column="DAY" type="date" unique-key="KONSTRAINT_DATE_IDX" unique="false" not-null="true" />

Note, however, if Hibernate is used to generate the DDL, then these will generate different SQL types (Date for 'date' and Timestamp for 'java.util.Date').

I search a way to map a many-to-many association table with extra column(s) with hibernate in xml files configuration.

Assuming with have two table 'a' & 'c' with a many to many association with a column named 'extra'. Cause I didn't find any complete example, here is my code. Hope it will help :).

First here is the Java objects.

public class A implements Serializable{  

    protected int id;
    // put some others fields if needed ...   
    private Set<AC> ac = new HashSet<AC>();

    public A(int id) {
        this.id = id;
    }

    public int getId() {
        return id;
    }

    public void setId(int id) {
        this.id = id;
    }

    public Set<AC> getAC() {
        return ac;
    }

    public void setAC(Set<AC> ac) {
        this.ac = ac;
    }

    /** {@inheritDoc} */
    @Override
    public int hashCode() {
        final int prime = 97;
        int result = 1;
        result = prime * result + id;
        return result;
    }

    /** {@inheritDoc} */
    @Override
    public boolean equals(Object obj) {
        if (this == obj)
            return true;
        if (obj == null)
            return false;
        if (!(obj instanceof A))
            return false;
        final A other = (A) obj;
        if (id != other.getId())
            return false;
        return true;
    }

}

public class C implements Serializable{

    protected int id;
    // put some others fields if needed ...    

    public C(int id) {
        this.id = id;
    }

    public int getId() {
        return id;
    }

    public void setId(int id) {
        this.id = id;
    }

    /** {@inheritDoc} */
    @Override
    public int hashCode() {
        final int prime = 98;
        int result = 1;
        result = prime * result + id;
        return result;
    }

    /** {@inheritDoc} */
    @Override
    public boolean equals(Object obj) {
        if (this == obj)
            return true;
        if (obj == null)
            return false;
        if (!(obj instanceof C))
            return false;
        final C other = (C) obj;
        if (id != other.getId())
            return false;
        return true;
    }

}

Now, we have to create the association table. The first step is to create an object representing a complex primary key (a.id, c.id).

public class ACId implements Serializable{

    private A a;
    private C c;

    public ACId() {
        super();
    }

    public A getA() {
        return a;
    }
    public void setA(A a) {
        this.a = a;
    }
    public C getC() {
        return c;
    }
    public void setC(C c) {
        this.c = c;
    }
    @Override
    public int hashCode() {
        final int prime = 31;
        int result = 1;
        result = prime * result + ((a == null) ? 0 : a.hashCode());
        result = prime * result
                + ((c == null) ? 0 : c.hashCode());
        return result;
    }
    @Override
    public boolean equals(Object obj) {
        if (this == obj)
            return true;
        if (obj == null)
            return false;
        if (getClass() != obj.getClass())
            return false;
        ACId other = (ACId) obj;
        if (a == null) {
            if (other.a != null)
                return false;
        } else if (!a.equals(other.a))
            return false;
        if (c == null) {
            if (other.c != null)
                return false;
        } else if (!c.equals(other.c))
            return false;
        return true;
    }
}

Now let's create the association object itself.

public class AC implements java.io.Serializable{

    private ACId id = new ACId();
    private String extra;

    public AC(){

    }

    public ACId getId() {
        return id;
    }

    public void setId(ACId id) {
        this.id = id;
    }

    public A getA(){
        return getId().getA();
    }

    public C getC(){
        return getId().getC();
    }

    public void setC(C C){
        getId().setC(C);
    }

    public void setA(A A){
        getId().setA(A);
    }

    public String getExtra() {
        return extra;
    }

    public void setExtra(String extra) {
        this.extra = extra;
    }

    public boolean equals(Object o) {
        if (this == o)
            return true;
        if (o == null || getClass() != o.getClass())
            return false;

        AC that = (AC) o;

        if (getId() != null ? !getId().equals(that.getId())
                : that.getId() != null)
            return false;

        return true;
    }

    public int hashCode() {
        return (getId() != null ? getId().hashCode() : 0);
    }
}

At this point, it's time to map all our classes with hibernate xml configuration.

A.hbm.xml and C.hxml.xml (quiete the same).

<class name="A" table="a">
        <id name="id" column="id_a" unsaved-value="0">
            <generator class="identity">
                <param name="sequence">a_id_seq</param>
            </generator>
        </id>
<!-- here you should map all others table columns -->
<!-- <property name="otherprop" column="otherprop" type="string" access="field" /> -->
    <set name="ac" table="a_c" lazy="true" access="field" fetch="select" cascade="all">
        <key>
            <column name="id_a" not-null="true" />
        </key>
        <one-to-many class="AC" />
    </set>
</class>

<class name="C" table="c">
        <id name="id" column="id_c" unsaved-value="0">
            <generator class="identity">
                <param name="sequence">c_id_seq</param>
            </generator>
        </id>
</class>

And then association mapping file, a_c.hbm.xml.

<class name="AC" table="a_c">
    <composite-id name="id" class="ACId">
        <key-many-to-one name="a" class="A" column="id_a" />
        <key-many-to-one name="c" class="C" column="id_c" />
    </composite-id>
    <property name="extra" type="string" column="extra" />
</class>

Here is the code sample to test.

A = ADao.get(1);
C = CDao.get(1);

if(A != null && C != null){
    boolean exists = false;
            // just check if it's updated or not
    for(AC a : a.getAC()){
        if(a.getC().equals(c)){
            // update field
            a.setExtra("extra updated");
            exists = true;
            break;
        }
    }

    // add 
    if(!exists){
        ACId idAC = new ACId();
        idAC.setA(a);
        idAC.setC(c);

        AC AC = new AC();
        AC.setId(idAC);
        AC.setExtra("extra added"); 
        a.getAC().add(AC);
    }

    ADao.save(A);
}

Since you have a star-schema design, you might want to structure it more like a relational table and less like a dictionary.

import collections

class Jobs( object ):
    def __init__( self, state, county, title, count ):
        self.state= state
        self.count= county
        self.title= title
        self.count= count

facts = [
    Jobs( 'new jersey', 'mercer county', 'plumbers', 3 ),
    ...

def groupBy( facts, name ):
    total= collections.defaultdict( int )
    for f in facts:
        key= getattr( f, name )
        total[key] += f.count

That kind of thing can go a long way to creating a data warehouse-like design without the SQL overheads.

If Android decides to recreate your Fragment later, it's going to call the no-argument constructor of your fragment. So overloading the constructor is not a solution.

With that being said, the way to pass stuff to your Fragment so that they are available after a Fragment is recreated by Android is to pass a bundle to the setArguments method.

So, for example, if we wanted to pass an integer to the fragment we would use something like:

public static MyFragment newInstance(int someInt) {
    MyFragment myFragment = new MyFragment();

    Bundle args = new Bundle();
    args.putInt("someInt", someInt);
    myFragment.setArguments(args);

    return myFragment;
}

And later in the Fragment onCreate() you can access that integer by using:

getArguments().getInt("someInt", 0);

This Bundle will be available even if the Fragment is somehow recreated by Android.

Also note: setArguments can only be called before the Fragment is attached to the Activity.

This approach is also documented in the android developer reference: https://developer.android.com/reference/android/app/Fragment.html

After writing a single activity, there comes a need to transition to another activity to perform another task either with or without information from the first activity.

Android platform allows transition by means of Intent Interface.

Words are taken from here: Using Intent Demo and i suggest you to go through this example because they also have provided a code file as well. so you can use it and easily understand the same.

ZXing is a free open source Java library to read and generate barcode images. You need to get the source code and build the jars yourself. Here's a simple tutorial that I wrote for building with ZXing jars and writing your first program with ZXing.

[http://www.vineetmanohar.com/2010/09/java-barcode-api/]

angular.module('elnApp')
.directive('jqdatepicker', function() {
    return {
        restrict: 'A',
        require: 'ngModel',
        link: function(scope, element, attrs, ctrl) {
            $(element).datepicker({
                dateFormat: 'dd.mm.yy',
                onSelect: function(date) {
                    ctrl.$setViewValue(date);
                    ctrl.$render();
                    scope.$apply();
                }
            });
        }
    };
});

The problem here is that the rendering of a RadioButtonList wraps the individual radio buttons (ListItems) in span tags and even when you assign a client-side event handler to the list item directly using Attributes it assigns the event to the span. Assigning the event to the RadioButtonList assigns it to the table it renders in.

The trick here is to add the ListItems on the aspx page and not from the code behind. You can then assign the JavaScript function to the onClick property. This blog post; attaching client-side event handler to radio button list by Juri Strumpflohner explains it all.

This only works if you know the ListItems in advance and does not help where the items in the RadioButtonList need to be dynamically added using the code behind.

Newer versions of Android support vector graphics, which is preferred over PNG icons. Android Studio 2.1.2 (and probably earlier versions) comes with Vector Asset Studio, which will automatically create PNG files for vector graphics that you add.

The Vector Asset Studio supports importing vector icons from the SDK, as well as your own SVG files.

This article describes Vector Asset Studio: https://developer.android.com/studio/write/vector-asset-studio.html

Summary for how to add a vector graphic with PNG files (partially copied from that URL):

1. In the Project window, select the Android view.
2. Right-click the res folder and select New > Vector Asset.
3. The Material Icon radio button should be selected; then click Choose
4. Select your icon, tweak any settings you need to tweak, and Finish.
5. Depending on your settings (see article), PNGs are generated during build at the app/build/generated/res/pngs/debug/ folder.

The XmlConvert class provides these kinds of facilities. About DateTimes, in particular, be careful about obsolete methods. See also: https://stackoverflow.com/a/7457718/1288109

Try this way,hope this will help you to solve your problem.

main.xml

<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:orientation="vertical"
    android:gravity="center">

    <WebView
        android:id="@+id/webView"
        android:layout_width="match_parent"
        android:layout_height="match_parent"/>
</LinearLayout>

MyActivity.java

public class MyActivity extends Activity {

    private WebView webView;
    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.main);

        webView = (WebView) findViewById(R.id.webView);
        webView.loadData("<a href=\"tel:+1800229933\">Call us free!</a>", "text/html", "utf-8");
    }

}

Please add this permission in AndroidManifest.xml

<uses-permission android:name="android.permission.CALL_PHONE"/>

Short answer: dispatchTouchEvent() will be called first of all.

Short advice: should not override dispatchTouchEvent() since it's hard to control, sometimes it can slow down your performance. IMHO, I suggest overriding onInterceptTouchEvent().

Because most answers mention pretty clearly about the flow touch event on activity/ view group/ view, I only add more detail about code on these methods in ViewGroup (ignoring dispatchTouchEvent()):

onInterceptTouchEvent() will be called first, ACTION event will be called respectively down -> move -> up. There are 2 cases:

1. If you return false in 3 cases (ACTION_DOWN, ACTION_MOVE, ACTION_UP), it will consider as the parent won't need this touch event, so onTouch() of the parents never calls, but onTouch() of the children will call instead; however please notice:

   • The onInterceptTouchEvent() still continue to receive touch event, as long as its children don't call requestDisallowInterceptTouchEvent(true).
   • If there are no children receiving that event (it can happen in 2 cases: no children at the position the users touch, or there are children but it returns false at ACTION_DOWN), the parents will send that event back to onTouch() of the parents.

2. Vice versa, if you return true, the parent will steal this touch event immediately, and onInterceptTouchEvent() will stop immediately, instead onTouch() of the parents will be called as well as all onTouch() of children will receive the last action event - ACTION_CANCEL (thus, it means the parents stole touch event, and children cannot handle it from then on). The flow of onInterceptTouchEvent() return false is normal, but there is a little confusion with return true case, so I list it here:

   • Return true at ACTION_DOWN, onTouch() of the parents will receive ACTION_DOWN again and following actions (ACTION_MOVE, ACTION_UP).
   • Return true at ACTION_MOVE, onTouch() of the parents will receive next ACTION_MOVE (not the same ACTION_MOVE in onInterceptTouchEvent()) and following actions (ACTION_MOVE, ACTION_UP).
   • Return true at ACTION_UP, onTouch() of the parents will NOT called at all since it's too late for the parents to steal touch event.

One more thing important is ACTION_DOWN of the event in onTouch() will determine if the view would like to receive more action from that event or not. If the view returns true at ACTION_DOWN in onTouch(), it means the view is willing to receive more action from that event. Otherwise, return false at ACTION_DOWN in onTouch() will imply that the view won't receive any more action from that event.

In the general case, the answer is No.

However, you can set the debugger to break at the point where the exception is first thrown. At that time, the key which was not present will be accessible as a value in the call stack.

In Visual Studio, this option is located here:

Debug → Exceptions... → Common Language Runtime Exceptions → System.Collections.Generic

There, you can check the Thrown box.

For more specific instances where information is needed at runtime, provided your code uses IDictionary<TKey, TValue> and not tied directly to Dictionary<TKey, TValue>, you can implement your own dictionary class which provides this behavior.

Try out cat and sprintf in your for loop.

eg.

cat(sprintf("\"%f\" \"%f\"\n", df$r, df$interest))

See here

I think using the STL method 'remove_if' from could help to prevent some weird issue when trying to attempt to delete the object that is wrapped by the iterator.

This solution may be less efficient.

Let's say we have some kind of container, like vector or a list called m_bullets:

Bullet::Ptr is a shared_pr<Bullet>

'it' is the iterator that 'remove_if' returns, the third argument is a lambda function that is executed on every element of the container. Because the container contains Bullet::Ptr, the lambda function needs to get that type(or a reference to that type) passed as an argument.

 auto it = std::remove_if(m_bullets.begin(), m_bullets.end(), [](Bullet::Ptr bullet){
    // dead bullets need to be removed from the container
    if (!bullet->isAlive()) {
        // lambda function returns true, thus this element is 'removed'
        return true;
    }
    else{
        // in the other case, that the bullet is still alive and we can do
        // stuff with it, like rendering and what not.
        bullet->render(); // while checking, we do render work at the same time
        // then we could either do another check or directly say that we don't
        // want the bullet to be removed.
        return false;
    }
});
// The interesting part is, that all of those objects were not really
// completely removed, as the space of the deleted objects does still 
// exist and needs to be removed if you do not want to manually fill it later 
// on with any other objects.
// erase dead bullets
m_bullets.erase(it, m_bullets.end());

'remove_if' removes the container where the lambda function returned true and shifts that content to the beginning of the container. The 'it' points to an undefined object that can be considered garbage. Objects from 'it' to m_bullets.end() can be erased, as they occupy memory, but contain garbage, thus the 'erase' method is called on that range.

iTextSharp is the best bet. Used it to make a spider for lucene.Net so that it could crawl PDF.

using System;
using System.IO;
using iTextSharp.text.pdf;
using System.Text.RegularExpressions;

namespace Spider.Utils
{
    /// <summary>
    /// Parses a PDF file and extracts the text from it.
    /// </summary>
    public class PDFParser
    {
        /// BT = Beginning of a text object operator 
        /// ET = End of a text object operator
        /// Td move to the start of next line
        ///  5 Ts = superscript
        /// -5 Ts = subscript

        #region Fields

        #region _numberOfCharsToKeep
        /// <summary>
        /// The number of characters to keep, when extracting text.
        /// </summary>
        private static int _numberOfCharsToKeep = 15;
        #endregion

        #endregion

        #region ExtractText
        /// <summary>
        /// Extracts a text from a PDF file.
        /// </summary>
        /// <param name="inFileName">the full path to the pdf file.</param>
        /// <param name="outFileName">the output file name.</param>
        /// <returns>the extracted text</returns>
        public bool ExtractText(string inFileName, string outFileName)
        {
            StreamWriter outFile = null;
            try
            {
                // Create a reader for the given PDF file
                PdfReader reader = new PdfReader(inFileName);
                //outFile = File.CreateText(outFileName);
                outFile = new StreamWriter(outFileName, false, System.Text.Encoding.UTF8);

                Console.Write("Processing: ");

                int totalLen = 68;
                float charUnit = ((float)totalLen) / (float)reader.NumberOfPages;
                int totalWritten = 0;
                float curUnit = 0;

                for (int page = 1; page <= reader.NumberOfPages; page++)
                {
                    outFile.Write(ExtractTextFromPDFBytes(reader.GetPageContent(page)) + " ");

                    // Write the progress.
                    if (charUnit >= 1.0f)
                    {
                        for (int i = 0; i < (int)charUnit; i++)
                        {
                            Console.Write("#");
                            totalWritten++;
                        }
                    }
                    else
                    {
                        curUnit += charUnit;
                        if (curUnit >= 1.0f)
                        {
                            for (int i = 0; i < (int)curUnit; i++)
                            {
                                Console.Write("#");
                                totalWritten++;
                            }
                            curUnit = 0;
                        }

                    }
                }

                if (totalWritten < totalLen)
                {
                    for (int i = 0; i < (totalLen - totalWritten); i++)
                    {
                        Console.Write("#");
                    }
                }
                return true;
            }
            catch
            {
                return false;
            }
            finally
            {
                if (outFile != null) outFile.Close();
            }
        }
        #endregion

        #region ExtractTextFromPDFBytes
        /// <summary>
        /// This method processes an uncompressed Adobe (text) object 
        /// and extracts text.
        /// </summary>
        /// <param name="input">uncompressed</param>
        /// <returns></returns>
        public string ExtractTextFromPDFBytes(byte[] input)
        {
            if (input == null || input.Length == 0) return "";

            try
            {
                string resultString = "";

                // Flag showing if we are we currently inside a text object
                bool inTextObject = false;

                // Flag showing if the next character is literal 
                // e.g. '\\' to get a '\' character or '\(' to get '('
                bool nextLiteral = false;

                // () Bracket nesting level. Text appears inside ()
                int bracketDepth = 0;

                // Keep previous chars to get extract numbers etc.:
                char[] previousCharacters = new char[_numberOfCharsToKeep];
                for (int j = 0; j < _numberOfCharsToKeep; j++) previousCharacters[j] = ' ';


                for (int i = 0; i < input.Length; i++)
                {
                    char c = (char)input[i];
                    if (input[i] == 213)
                        c = "'".ToCharArray()[0];

                    if (inTextObject)
                    {
                        // Position the text
                        if (bracketDepth == 0)
                        {
                            if (CheckToken(new string[] { "TD", "Td" }, previousCharacters))
                            {
                                resultString += "\n\r";
                            }
                            else
                            {
                                if (CheckToken(new string[] { "'", "T*", "\"" }, previousCharacters))
                                {
                                    resultString += "\n";
                                }
                                else
                                {
                                    if (CheckToken(new string[] { "Tj" }, previousCharacters))
                                    {
                                        resultString += " ";
                                    }
                                }
                            }
                        }

                        // End of a text object, also go to a new line.
                        if (bracketDepth == 0 &&
                            CheckToken(new string[] { "ET" }, previousCharacters))
                        {

                            inTextObject = false;
                            resultString += " ";
                        }
                        else
                        {
                            // Start outputting text
                            if ((c == '(') && (bracketDepth == 0) && (!nextLiteral))
                            {
                                bracketDepth = 1;
                            }
                            else
                            {
                                // Stop outputting text
                                if ((c == ')') && (bracketDepth == 1) && (!nextLiteral))
                                {
                                    bracketDepth = 0;
                                }
                                else
                                {
                                    // Just a normal text character:
                                    if (bracketDepth == 1)
                                    {
                                        // Only print out next character no matter what. 
                                        // Do not interpret.
                                        if (c == '\\' && !nextLiteral)
                                        {
                                            resultString += c.ToString();
                                            nextLiteral = true;
                                        }
                                        else
                                        {
                                            if (((c >= ' ') && (c <= '~')) ||
                                                ((c >= 128) && (c < 255)))
                                            {
                                                resultString += c.ToString();
                                            }

                                            nextLiteral = false;
                                        }
                                    }
                                }
                            }
                        }
                    }

                    // Store the recent characters for 
                    // when we have to go back for a checking
                    for (int j = 0; j < _numberOfCharsToKeep - 1; j++)
                    {
                        previousCharacters[j] = previousCharacters[j + 1];
                    }
                    previousCharacters[_numberOfCharsToKeep - 1] = c;

                    // Start of a text object
                    if (!inTextObject && CheckToken(new string[] { "BT" }, previousCharacters))
                    {
                        inTextObject = true;
                    }
                }

                return CleanupContent(resultString);
            }
            catch
            {
                return "";
            }
        }

        private string CleanupContent(string text)
        {
            string[] patterns = { @"\\\(", @"\\\)", @"\\226", @"\\222", @"\\223", @"\\224", @"\\340", @"\\342", @"\\344", @"\\300", @"\\302", @"\\304", @"\\351", @"\\350", @"\\352", @"\\353", @"\\311", @"\\310", @"\\312", @"\\313", @"\\362", @"\\364", @"\\366", @"\\322", @"\\324", @"\\326", @"\\354", @"\\356", @"\\357", @"\\314", @"\\316", @"\\317", @"\\347", @"\\307", @"\\371", @"\\373", @"\\374", @"\\331", @"\\333", @"\\334", @"\\256", @"\\231", @"\\253", @"\\273", @"\\251", @"\\221"};
            string[] replace = {   "(",     ")",      "-",     "'",      "\"",      "\"",    "à",      "â",      "ä",      "À",      "Â",      "Ä",      "é",      "è",      "ê",      "ë",      "É",      "È",      "Ê",      "Ë",      "ò",      "ô",      "ö",      "Ò",      "Ô",      "Ö",      "ì",      "î",      "ï",      "Ì",      "Î",      "Ï",      "ç",      "Ç",      "ù",      "û",      "ü",      "Ù",      "Û",      "Ü",      "®",      "™",      "«",      "»",      "©",      "'" };

            for (int i = 0; i < patterns.Length; i++)
            {
                string regExPattern = patterns[i];
                Regex regex = new Regex(regExPattern, RegexOptions.IgnoreCase);
                text = regex.Replace(text, replace[i]);
            }

            return text;
        }

        #endregion

        #region CheckToken
        /// <summary>
        /// Check if a certain 2 character token just came along (e.g. BT)
        /// </summary>
        /// <param name="tokens">the searched token</param>
        /// <param name="recent">the recent character array</param>
        /// <returns></returns>
        private bool CheckToken(string[] tokens, char[] recent)
        {
            foreach (string token in tokens)
            {
                if ((recent[_numberOfCharsToKeep - 3] == token[0]) &&
                    (recent[_numberOfCharsToKeep - 2] == token[1]) &&
                    ((recent[_numberOfCharsToKeep - 1] == ' ') ||
                    (recent[_numberOfCharsToKeep - 1] == 0x0d) ||
                    (recent[_numberOfCharsToKeep - 1] == 0x0a)) &&
                    ((recent[_numberOfCharsToKeep - 4] == ' ') ||
                    (recent[_numberOfCharsToKeep - 4] == 0x0d) ||
                    (recent[_numberOfCharsToKeep - 4] == 0x0a))
                    )
                {
                    return true;
                }
            }
            return false;
        }
        #endregion
    }
}

An alternative way to go around the problem, is to make the name of the session cookie be port related. For example:

• mysession8080 for the server running on port 8080
• mysession8000 for the server running on port 8000

Your code could access the webserver configuration to find out which port your server uses, and name the cookie accordingly.

Keep in mind that your application will receive both cookies, and you need to request the one that corresponds to your port.

There is no need to have the exact port number in the cookie name, but this is more convenient.

In general, the cookie name could encode any other parameter specific to the server instance you use, so it can be decoded by the right context.

Update: AdoptOpenJDK has changed its name to Adoptium, as part of its move to the Eclipse Foundation.

OpenJDK ? source code
Adoptium/AdoptOpenJDK ? builds

Difference between OpenJDK and AdoptOpenJDK

The first provides source-code, the other provides builds of that source-code.

• OpenJDK is an open-source project providing source-code (not builds) of an implementation of the Java platform as defined by:
  • the Java Specifications
  • Java Specification Request (JSR) documents published by Oracle via the Java Community Process
  • JDK Enhancement Proposal (JEP) documents published by Oracle via the OpenJDK project
• AdoptOpenJDK is an organization founded by some prominent members of the Java community aimed at providing binary builds and installers at no cost for users of Java technology.

Several vendors of Java & OpenJDK

Adoptium of the Eclipse Foundation, formerly known as AdoptOpenJDK, is only one of several vendors distributing implementations of the Java platform. These include:

• Eclipse Foundation (Adoptium/AdoptOpenJDK)
• Azul Systems
• Oracle
• Red Hat / IBM
• BellSoft
• SAP
• Amazon AWS
• … and more

See this flowchart of mine to help guide you in picking a vendor for an implementation of the Java platform. Click/tap to zoom.

Another resource: This comparison matrix by Azul Systems is useful, and seems true and fair to my mind.

Here is a list of considerations and motivations to consider in choosing a vendor and implementation.

Some vendors offer you a choice of JIT technologies.

To understand more about this Java ecosystem, read Java Is Still Free

You could use

Myarray.insert("Data #\(index)", atIndex: index)

Capture the PID of the ngnix process in a variable (for example $NGNIX_PID) and at the end of the entrypoint file do

wait $NGNIX_PID 

In that way, your container should run until ngnix is alive, when ngnix stops, the container stops as well

Did you try adding the self prefix to the fileName and replacing the method above the Button ? With the self, it becomes visible between methods.

...

def load_file(self):
    self.fileName = filedialog.askopenfilename(filetypes = (("Template files", "*.tplate")
                                                     ,("HTML files", "*.html;*.htm")
                                                     ,("All files", "*.*") ))
...

Take a look at the answers provided for this question: Invalid value for size_t?. Also you can use std::find_if with std::distance to get the index.

std::vector<type>::iterator iter = std::find_if(vec.begin(), vec.end(), comparisonFunc);
size_t index = std::distance(vec.begin(), iter);
if(index == vec.size()) 
{
    //invalid
}

my_function = function(hash) { /* use hash.options and hash.content */ };

and then call:

my_function ({ options: options });
my_function ({ options: options, content: content });

For pfx files from SSL for Free I find this https://decoder.link/converter easiest.

Simply make sure PEM -> PKCS#12 is selected, then upload the certificate, ca_bundle and key files and convert.

Remember the password, then upload with the password you used and add bindings.

Only checked and checked="checked" are valid. Your other options depend on error recovery in browsers.

checked="yes" and checked="true" are particularly bad as they imply that checked="no" and checked="false" will set the default state to be unchecked … which they will not.

Here is how to display the date as (year/month/day) :

from datetime import datetime
now = datetime.now()

print '%s/%s/%s' % (now.year, now.month, now.day)

You have asked two questions, one in the title about the difference between PNG8 and PNG24, which has received a few answers, namely that PNG24 has 8-bit red, green, and blue channels, and PNG-8 has a single 8-bit index into a palette. Naturally, PNG24 usually has a larger filesize than PNG8. Furthermore, PNG8 usually means that it is opaque or has only binary transparency (like GIF); it's defined that way in ImageMagick/GraphicsMagick.

This is an answer to the other one, "I would like to know that if I use either type in my html page, will there be any error? Or is this only quality matter?"

You can put either type on an HTML page and no, this won't cause an error; the files should all be named with the ".png" extension and referred to that way in your HTML. Years ago, early versions of Internet Explorer would not handle PNG with an alpha channel (PNG32) or indexed-color PNG with translucent pixels properly, so it was useful to convert such images to PNG8 (indexed-color with binary transparency conveyed via a PNG tRNS chunk) -- but still use the .png extension, to be sure they would display properly on IE. I think PNG24 was always OK on Internet Explorer because PNG24 is either opaque or has GIF-like single-color transparency conveyed via a PNG tRNS chunk.

The names PNG8 and PNG24 aren't mentioned in the PNG specification, which simply calls them all "PNG". Other names, invented by others, include

• PNG8 or PNG-8 (indexed-color with 8-bit samples, usually means opaque or with GIF-like, binary transparency, but sometimes includes translucency)
• PNG24 or PNG-24 (RGB with 8-bit samples, may have GIF-like transparency via tRNS)
• PNG32 (RGBA with 8-bit samples, opaque, transparent, or translucent)
• PNG48 (Like PNG24 but with 16-bit R,G,B samples)
• PNG64 (like PNG32 but with 16-bit R,G,B,A samples)

There are many more possible combinations including grayscale with 1, 2, 4, 8, or 16-bit samples and indexed PNG with 1, 2, or 4-bit samples (and any of those with transparent or translucent pixels), but those don't have special names.

Here is a tryParseInt method that I am using, this takes the default value as second parameter so it can be anything you require.

function tryParseInt(str, defaultValue) {
    return parseInt(str) == str ? parseInt(str) : defaultValue;
}

tryParseInt("", 0);//0 
tryParseInt("string", 0);//0 
tryParseInt("558", 0);//558

I have run into the same error entries in LogCat. In my case it's caused by the 3rd party keyboard I am using. When I change it back to Android keyboard, the error entry does not show up any more.

Import base.py in __init__.py alone. make sure you won't repeat the same configuration again!.

set environment variable SET DJANGO_DEVELOPMENT =dev

settings/
  __init__.py
  base.py
  local.py
  production.py

In __init__.py

from .base import *
if os.environ.get('DJANGO_DEVELOPMENT')=='prod':
   from .production import *
else:
   from .local import *

In base.py configured the global configurations. except for Database. like

SECRET_KEY, ALLOWED_HOSTS,INSTALLED_APPS,MIDDLEWARE .. etc....

In local.py

DATABASES = {
'default': {
    'ENGINE': 'django.db.backends.postgresql_psycopg2',
    'NAME': 'database',
    'USER': 'postgres',
    'PASSWORD': 'password',
    'HOST': 'localhost',
    'PORT': '5432',
}
}

First, learn the core concepts of Node.js:

• You'll want to understand the asynchronous coding style that Node.js encourages.

• Async != concurrent. Understand Node.js's event loop!

• Node.js uses CommonJS-style require() for code loading; it's probably a bit different from what you're used to.

• Familiarize yourself with Node.js's standard library.

Then, you're going to want to see what the community has to offer:

The gold standard for Node.js package management is NPM.

• It is a command line tool for managing your project's dependencies.

• Make sure you understand how Node.js and NPM interact with your project via the node_modules folder and package.json.

• NPM is also a registry of pretty much every Node.js package out there

Finally, you're going to want to know what some of the more popular packages are for various tasks:

Useful Tools for Every Project:

• Underscore contains just about every core utility method you want.
• Lo-Dash is a clone of Underscore that aims to be faster, more customizable, and has quite a few functions that underscore doesn't have. Certain versions of it can be used as drop-in replacements of underscore.
• TypeScript makes JavaScript considerably more bearable, while also keeping you out of trouble!
• JSHint is a code-checking tool that'll save you loads of time finding stupid errors. Find a plugin for your text editor that will automatically run it on your code.

Unit Testing:

• Mocha is a popular test framework.
• Vows is a fantastic take on asynchronous testing, albeit somewhat stale.
• Expresso is a more traditional unit testing framework.
• node-unit is another relatively traditional unit testing framework.
• AVA is a new test runner with Babel built-in and runs tests concurrently.

Web Frameworks:

• Express.js is by far the most popular framework.
• Koa is a new web framework designed by the team behind Express.js, which aims to be a smaller, more expressive, and more robust foundation for web applications and APIs.
• sails.js the most popular MVC framework for Node.js, and is based on express. It is designed to emulate the familiar MVC pattern of frameworks like Ruby on Rails, but with support for the requirements of modern apps: data-driven APIs with a scalable, service-oriented architecture.
• Meteor bundles together jQuery, Handlebars, Node.js, WebSocket, MongoDB, and DDP and promotes convention over configuration without being a Ruby on Rails clone.
• Tower (deprecated) is an abstraction of a top of Express.js that aims to be a Ruby on Rails clone.
• Geddy is another take on web frameworks.
• RailwayJS is a Ruby on Rails inspired MVC web framework.
• Sleek.js is a simple web framework, built upon Express.js.
• Hapi is a configuration-centric framework with built-in support for input validation, caching, authentication, etc.

• Trails is a modern web application framework. It builds on the pedigree of Rails and Grails to accelerate development by adhering to a straightforward, convention-based, API-driven design philosophy.

• Danf is a full-stack OOP framework providing many features in order to produce a scalable, maintainable, testable and performant applications and allowing to code the same way on both the server (Node.js) and client (browser) sides.

• Derbyjs is a reactive full-stack JavaScript framework. They are using patterns like reactive programming and isomorphic JavaScript for a long time.

• Loopback.io is a powerful Node.js framework for creating APIs and easily connecting to backend data sources. It has an Angular.js SDK and provides SDKs for iOS and Android.

Web Framework Tools:

• Jade is the HAML/Slim of the Node.js world
• EJS is a more traditional templating language.
• Don't forget about Underscore's template method!

Networking:

• Connect is the Rack or WSGI of the Node.js world.
• Request is a very popular HTTP request library.
• socket.io is handy for building WebSocket servers.

Command Line Interaction:

• minimist just command line argument parsing.
• Yargs is a powerful library for parsing command-line arguments.
• Commander.js is a complete solution for building single-use command-line applications.
• Vorpal.js is a framework for building mature, immersive command-line applications.
• Chalk makes your CLI output pretty.

Code Generators:

• Yeoman Scaffolding tool from the command-line.
• Skaffolder Code generator with visual and command-line interface. It generates a customizable CRUD application starting from the database schema or an OpenAPI 3.0 YAML file.

Work with streams:

• mississipi everything you miss about streams.
• https://github.com/calvinmetcalf/streams-a-love-story
• http://maxogden.com/node-streams.html
• https://github.com/substack/stream-handbook
• How streams help to raise Node.js performance

Via Type.GetType you can get the type information. You can use this class to get the method information and then invoke the method (for static methods, leave the first parameter null).

You might also need the Assembly name to correctly identify the type.

If the type is in the currently executing assembly or in Mscorlib.dll, it is sufficient to supply the type name qualified by its namespace.

  $("#gst_show>input").change(function(){

    var checked = $(this).is(":checked");
    if($("#gst_show>input:checkbox").attr("checked",checked)){
      alert('Checked Successfully');
    }

  });

Use the -wait parameter with Get-Content, which displays lines as they are added to the file. This feature was present in PowerShell v1, but for some reason not documented well in v2.

Here is an example

Get-Content -Path "C:\scripts\test.txt" -Wait

Once you run this, update and save the file and you will see the changes on the console.

Since JQuery 1.6, always use .prop() Read why here: http://api.jquery.com/prop/

if($('input').prop('readonly')){ }

.prop() can also be used to set the property

$('input').prop('readonly',true);

$('input').prop('readonly',false);

You can write in a file by the following code example:

var data = [{ 'test': '123', 'test2': 'Lorem Ipsem ' }];
fs.open(datapath + '/data/topplayers.json', 'wx', function (error, fileDescriptor) {
  if (!error && fileDescriptor) {
    var stringData = JSON.stringify(data);
    fs.writeFile(fileDescriptor, stringData, function (error) {
      if (!error) {
        fs.close(fileDescriptor, function (error) {
          if (!error) {
            callback(false);
          } else {
            callback('Error in close file');
          }
        });
      } else {
        callback('Error in writing file.');
      }
    });
  }
});

First, what you are looking for is a column or bar diagram, not really a histogram. A histogram is made from a frequency distribution of a continuous variable that is separated into bins. Here you have a column against separate labels.

To make a bar diagram with matplotlib, use the matplotlib.pyplot.bar() method. Have a look at this page of the matplotlib documentation that explains very well with examples and source code how to do it.

If it is possible though, I would just suggest that for a simple task like this if you could avoid writing code that would be better. If you have any spreadsheet program this should be a piece of cake because that's exactly what they are for, and you won't have to 'reinvent the wheel'. The following is the plot of your data in Excel:

I just copied your data from the question, used the text import wizard to put it in two columns, then I inserted a column diagram.

You are looking for the C# coalesce operator: ??. This operator takes a left and right argument. If the left hand side of the operator is null or a nullable with no value it will return the right argument. Otherwise it will return the left.

var x = somePossiblyNullValue ?? valueIfNull;

for me , using export PYTHONIOENCODING=UTF-8 before executing python command worked .

The relevant use cases for null pointers are

• Redirection to something like a deeper tree node, which may not exist or has not been linked yet. That's something you should always keep closely encapsulated in a dedicated class, so readability or conciseness isn't that much of an issue here.

• Dynamic casts. Casting a base-class pointer to a particular derived-class one (something you should again try to avoid, but may at times find necessary) always succeeds, but results in a null pointer if the derived class doesn't match. One way to check this is

  Derived* derived_ptr = dynamic_cast<Derived*>(base_ptr);
  if(derived_ptr != nullptr) { ... }
  

  (or, preferrably, auto derived_ptr = ...). Now, this is bad, because it leaves the (possibly invalid, i.e. null) derived pointer outside of the safety-guarding if block's scope. This isn't necessary, as C++ allows you to introduce boolean-convertable variables inside an if-condition:

  if(auto derived_ptr = dynamic_cast<Derived*>(base_ptr)) { ... }
  

  which is not only shorter and scope-safe, it's also much more clear in its intend: when you check for null in a separate if-condition, the reader wonders "ok, so derived_ptr must not be null here... well, why would it be null?" Whereas the one-line version says very plainly "if you can safely cast base_ptr to Derived*, then use it for...".

  The same works just as well for any other possible-failure operation that returns a pointer, though IMO you should generally avoid this: it's better to use something like boost::optional as the "container" for results of possibly failing operations, rather than pointers.

So, if the main use case for null pointers should always be written in a variation of the implicit-cast-style, I'd say it's good for consistency reasons to always use this style, i.e. I'd advocate for if(ptr) over if(ptr!=nullptr).

I'm afraid I have to end with an advert: the if(auto bla = ...) syntax is actually just a slightly cumbersome approximation to the real solution to such problems: pattern matching. Why would you first force some action (like casting a pointer) and then consider that there might be a failure... I mean, it's ridiculous, isn't it? It's like, you have some foodstuff and want to make soup. You hand it to your assistant with the task to extract the juice, if it happens to be a soft vegetable. You don't first look it at it. When you have a potato, you still give it to your assistant but they slap it back in your face with a failure note. Ah, imperative programming!

Much better: consider right away all the cases you might encounter. Then act accordingly. Haskell:

makeSoupOf :: Foodstuff -> Liquid
makeSoupOf p@(Potato{..}) = mash (boil p) <> water
makeSoupOf vegetable
 | isSoft vegetable  = squeeze vegetable <> salt
makeSoupOf stuff  = boil (throwIn (water<>salt) stuff)

Haskell also has special tools for when there is really a serious possibility of failure (as well as for a whole bunch of other stuff): monads. But this isn't the place for explaining those.

^{⟨/advert⟩}

If you're using homebrew:

brew services restart memcached

For Unix

grep "ARCHITECTURE" $ORACLE_HOME/inventory/ContentsXML/oraclehomeproperties.xml

And the output is:

<PROPERTY NAME="ARCHITECTURE" VAL="64"/> 

For Windows

findstr "ARCHITECTURE" %ORACLE_HOME%\inventory\ContentsXML\oraclehomeproperties.xml

And the output can be:

<PROPERTY NAME="ARCHITECTURE" VAL="64"/>

1. Browser-native HTML inline embedding:

<embed
    src="http://infolab.stanford.edu/pub/papers/google.pdf#toolbar=0&navpanes=0&scrollbar=0"
    type="application/pdf"
    frameBorder="0"
    scrolling="auto"
    height="100%"
    width="100%"
></embed>

<iframe
    src="http://infolab.stanford.edu/pub/papers/google.pdf#toolbar=0&navpanes=0&scrollbar=0"
    frameBorder="0"
    scrolling="auto"
    height="100%"
    width="100%"
></iframe>

Pro:

• No PDF file size limitations (even hundreds of MB)
• It’s the fastest solution

Cons:

• It doesn’t work on mobile browsers

2. Google Docs Viewer:

<iframe
    src="https://drive.google.com/viewerng/viewer?embedded=true&url=http://infolab.stanford.edu/pub/papers/google.pdf#toolbar=0&scrollbar=0"
    frameBorder="0"
    scrolling="auto"
    height="100%"
    width="100%"
></iframe>

Pro:

• Works on desktop and mobile browser

Cons:

• 25MB file limit
• Requires additional time to download viewer

3. Other solutions to embed PDF:

• https://mozilla.github.io/pdf.js
• https://pdfobject.com
• https://viewerjs.org

IMPORTANT NOTE:

Please check the X-Frame-Options HTTP response header. It should be SAMEORIGIN.

X-Frame-Options SAMEORIGIN;

If you're using ASP.NET 2.0 or greater, you can turn it on in the Web.config file. In the <system.web> section, add the following line:

<httpCookies httpOnlyCookies="true"/>

An alternative to using keytool, you can use the command

openssl x509 -in certificate.pem -text

This should work for any x509 .pem file provided you have openssl installed.

Specify the path starting from src as below:

src/main/resources/myprop.proper

This is a full example based on the other answers and comments to the question. In the example the timestamp (created_at-column) is saved as unix epoch UTC timezone and converted to local timezone only when necessary.

Using unix epoch saves storage space - 4 bytes integer vs. 24 bytes string when stored as ISO8601 string, see datatypes. If 4 bytes is not enough that can be increased to 6 or 8 bytes.

Saving timestamp on UTC timezone makes it convenient to show a reasonable value on multiple timezones.

SQLite version is 3.8.6 that ships with Ubuntu LTS 14.04.

$ sqlite3 so.db
SQLite version 3.8.6 2014-08-15 11:46:33
Enter ".help" for usage hints.
sqlite> .headers on

create table if not exists example (
   id integer primary key autoincrement
  ,data text not null unique
  ,created_at integer(4) not null default (strftime('%s','now'))
);

insert into example(data) values
 ('foo')
,('bar')
;

select
 id
,data
,created_at as epoch
,datetime(created_at, 'unixepoch') as utc
,datetime(created_at, 'unixepoch', 'localtime') as localtime
from example
order by id
;

id|data|epoch     |utc                |localtime
1 |foo |1412097842|2014-09-30 17:24:02|2014-09-30 20:24:02
2 |bar |1412097842|2014-09-30 17:24:02|2014-09-30 20:24:02

Localtime is correct as I'm located at UTC+2 DST at the moment of the query.

I agree with the sentiment in "don't use magic values". But I would like to point out that there are times when it's legit to resort to such solutions.

There is a price to pay for setting columns nullable: NULLs are not indexable. A query like "get all records that haven't been modified since the start of 2010" includes those that have never been modified. If we use a nullable column we're thus forced to use [modified] < @cutoffDate OR [modified] IS NULL, and this in turn forces the database engine to perform a table scan, since the nulls are not indexed. And this last can be a problem.

In practice, one should go with NULL if this does not introduce a practical, real-world performance penalty. But it can be difficult to know, unless you have some idea what realistic data volumes are today and will be in the so-called forseeable future. You also need to know if there will be a large proportion of the records that have the special value - if so, there's no point in indexing it anyway.

In short, by deafult/rule of thumb one should go for NULL. But if there's a huge number of records, the data is frequently queried, and only a small proportion of the records have the NULL/special value, there could be significant performance gain for locating records based on this information (provided of course one creates the index!) and IMHO this can at times justify the use of "magic" values.

If one want to keep getting updated processes (on the example, 2 seconds) on a shell session without having to manually interact with it use:

watch -n 2 'mysql -h 127.0.0.1 -P 3306 -u some_user -psome_pass some_database -e "show full processlist;"'

The only bad thing about the show [full] processlist is that you can't filter the output result. On the other hand, issuing the SELECT * FROM INFORMATION_SCHEMA.PROCESSLIST open possibilities to remove from the output anything you don't want to see:

SELECT * from INFORMATION_SCHEMA.PROCESSLIST
WHERE DB = 'somedatabase'
AND COMMAND <> 'Sleep'
AND HOST NOT LIKE '10.164.25.133%' \G

In case you are calculating more than one moving average:

for i in range(2,10):
   df['MA{}'.format(i)] = df.rolling(window=i).mean()

Then you can do an aggregate average of all the MA

df[[f for f in list(df) if "MA" in f]].mean(axis=1)

If it just a question of providing expensive tasks, in case of php-fpm is supported, why not to use fastcgi_finish_request() function?

This function flushes all response data to the client and finishes the request. This allows for time consuming tasks to be performed without leaving the connection to the client open.

You don't really use asynchronicity in this way:

1. Make all your main code first.
2. Execute fastcgi_finish_request().
3. Make all heavy stuff.

Once again php-fpm is needed.

However many years late this response may be, anyone coming across this might just want to try

li {
    display: flex;
    flex-direction: row;
    align-items: center;
}

Browser support for flexbox is far better than it was when @scottjoudry posted his response above, but you may still want to consider prefixing or other options if you're trying to support much older browsers. caniuse: flex

If you define the timezone in your PHP app (as you should), which you can do this way:

date_default_timezone_set('Europe/Paris');

Then it's as simple as:

$yesterday = new DateTime('yesterday'); // will use our default timezone, Paris
echo $yesterday->format('Y-m-d'); // or whatever format you want

(You may want to define a constant or environment variable to store your default timezone.)

You remove the original image here:

newImg.animate(css, SPEED, function() {
    img.remove();
    newImg.removeClass('morpher');
    (callback || function() {})();
});

And all that's left behind is newImg. Then you reset link references the image using #rocket:

$("#rocket").attr('src', ...

But your newImg doesn't have an id attribute let alone an id of rocket.

To fix this, you need to remove img and then set the id attribute of newImg to rocket:

newImg.animate(css, SPEED, function() {
    var old_id = img.attr('id');
    img.remove();
    newImg.attr('id', old_id);
    newImg.removeClass('morpher');
    (callback || function() {})();
});

And then you'll get the shiny black rocket back again: http://jsfiddle.net/ambiguous/W2K9D/

UPDATE: A better approach (as noted by mellamokb) would be to hide the original image and then show it again when you hit the reset button. First, change the reset action to something like this:

$("#resetlink").click(function(){
    clearInterval(timerRocket);
    $("#wrapper").css('top', '250px');
    $('.throbber, .morpher').remove(); // Clear out the new stuff.
    $("#rocket").show();               // Bring the original back.
});

And in the newImg.load function, grab the images original size:

var orig = {
    width: img.width(),
    height: img.height()
};

And finally, the callback for finishing the morphing animation becomes this:

newImg.animate(css, SPEED, function() {
    img.css(orig).hide();
    (callback || function() {})();
});

New and improved: http://jsfiddle.net/ambiguous/W2K9D/1/

The leaking of $('.throbber, .morpher') outside the plugin isn't the best thing ever but it isn't a big deal as long as it is documented.

use this:

SHOW PROCEDURE STATUS;

You can check and use their free trial browserstack , saucelabs or browser shots I know this is a very old question and I am answering too late and today there are many options available but may be someone get this usefull.

We, the Javascript lovers, don't have to use Ruby (Jekyll or Octopress) to generate static pages in Github pages, we can use Node.js and Harp, for example:

These are the steps. Abstract:

1. Create a New Repository

2. Clone the Repository

   git clone https://github.com/your-github-user-name/your-github-user-name.github.io.git
   

3. Initialize a Harp app (locally):

   harp init _harp
   

make sure to name the folder with an underscore at the beginning; when you deploy to GitHub Pages, you don’t want your source files to be served.

4. Compile your Harp app

   harp compile _harp ./
   

5. Deploy to Gihub

   git add -A
   git commit -a -m "First Harp + Pages commit"
   git push origin master
   

And this is a cool tutorial with details about nice stuff like layouts, partials, Jade and Less.

If you're having troubles accessing your Flask server, deployed using PyCharm, take the following into account:

PyCharm doesn't run your main .py file directly, so any code in if __name__ == '__main__': won't be executed, and any changes (like app.run(host='0.0.0.0', port=5000)) won't take effect.

Instead, you should configure the Flask server using Run Configurations, in particular, placing --host 0.0.0.0 --port 5000 into Additional options field.

More about configuring Flask server in PyCharm

I think the easiest way would be

var items = $('img, style, ...'), itemslen = items.length;

items.bind('load', function(){ 
    itemslen--;
    if (!itemlen) // Do stuff here
});

EDIT, to be a little crazy:

var items = $('a, abbr, acronym, address, applet, area, audio, b, base, ' + 
    'basefont, bdo, bgsound, big, body, blockquote, br, button, canvas, ' + 
    'caption, center, cite, code, col, colgroup, comment, custom, dd, del, ' +
    'dfn, dir, div, dl, document, dt, em, embed, fieldset, font, form, frame, ' +
    'frameset, head, hn, hr, html, i, iframe, img, input, ins, isindex, kbd, ' +
    'label, legend, li, link, listing, map, marquee, media, menu, meta, ' +
    'nextid, nobr, noframes, noscript, object, ol, optgroup, option, p, ' +
    'param, plaintext, pre, q, rt, ruby, s, samp, script, select, small, ' + 
    'source, span, strike, strong, style, sub, sup, table, tbody, td, ' + 
    'textarea, tfoot, th, thead, title, tr, tt, u, ul, var, wbr, video, ' + 
    'window, xmp'), itemslen = items.length;

items.bind('load', function(){ 
    itemslen--;
    if (!itemlen) // Do stuff here
});

Use

scanf("%d", &array[0]);

and use == for comparision instead of =

var seconds = 0;
setInterval(function () {
  seconds++;
}, 1000);

There you go, now you have a variable counting seconds elapsed. Since I don't know the context, you'll have to decide whether you want to attach that variable to an object or make it global.

Set interval is simply a function that takes a function as it's first parameter and a number of milliseconds to repeat the function as it's second parameter.

You could also solve this by saving and comparing times.

EDIT: This answer will provide very inconsistent results due to things such as the event loop and the way browsers may choose to pause or delay processing when a page is in a background tab. I strongly recommend using the accepted answer.

You can use the onChange property. Something like:

<select onChange="window.location.href=this.value">
    <option value="www.google.com">A</option>
    <option value="www.aol.com">B</option>
</select>

How about this?

https://maps.google.com/?q=1200 Pennsylvania Ave SE, Washington, District of Columbia, 20003

https://maps.google.com/?q=term

If you have lat-long then use below URL

https://maps.google.com/?ll=latitude,longitude

Example: maps.google.com/?ll=38.882147,-76.99017

UPDATE

As of year 2017, Google now has an official way to create cross-platform Google Maps URLs:

https://developers.google.com/maps/documentation/urls/guide

You can use links like

https://www.google.com/maps/search/?api=1&query=1200%20Pennsylvania%20Ave%20SE%2C%20Washington%2C%20District%20of%20Columbia%2C%2020003 

If I understand you, perhaps you don't need an array of zeroes; rather, you need a hash. The hash keys will be the values in the other array and the hash values will be the number of times the value exists in the other array:

use strict;
use warnings;

my @other_array = (0,0,0,1,2,2,3,3,3,4);
my %tallies;
$tallies{$_} ++ for @other_array;

print "$_ => $tallies{$_}\n" for sort {$a <=> $b} keys %tallies;    

Output:

0 => 3
1 => 1
2 => 2
3 => 3
4 => 1

To answer your specific question more directly, to create an array populated with a bunch of zeroes, you can use the technique in these two examples:

my @zeroes = (0) x 5;            # (0,0,0,0,0)

my @zeroes = (0) x @other_array; # A zero for each item in @other_array.
                                 # This works because in scalar context
                                 # an array evaluates to its size.

for python3 user, install python3-tk package by following command sudo apt-get install python3-tk

In practice, I have found that you need to be a bit careful, especially if you are using a bit of xml repeatedly. Suppose, for example, that you have a table that you wish to create a table row for each entry in a list. You've set up some xml:

In my_table_row.xml:

<?xml version="1.0" encoding="utf-8"?>
<TableRow xmlns:android="http://schemas.android.com/apk/res/android" 
  android:orientation="vertical"
  android:layout_width="match_parent"
  android:layout_height="match_parent" android:id="@+id/myTableRow">
    <ImageButton android:src="@android:drawable/ic_menu_delete" android:layout_width="wrap_content" android:layout_height="wrap_content" android:id="@+id/rowButton"/>
    <TextView android:layout_height="wrap_content" android:layout_width="wrap_content" android:textAppearance="?android:attr/textAppearanceMedium" android:text="TextView" android:id="@+id/rowText"></TextView>
</TableRow>

Then you want to create it once per row with some code. It assume that you have defined a parent TableLayout myTable to attach the Rows to.

for (int i=0; i<numRows; i++) {
    /*
     * 1. Make the row and attach it to myTable. For some reason this doesn't seem
     * to return the TableRow as you might expect from the xml, so you need to
     * receive the View it returns and then find the TableRow and other items, as
     * per step 2.
     */
    LayoutInflater inflater = (LayoutInflater)getBaseContext().getSystemService(Context.LAYOUT_INFLATER_SERVICE);
    View v =  inflater.inflate(R.layout.my_table_row, myTable, true);

    // 2. Get all the things that we need to refer to to alter in any way.
    TableRow    tr        = (TableRow)    v.findViewById(R.id.profileTableRow);
    ImageButton rowButton = (ImageButton) v.findViewById(R.id.rowButton);
    TextView    rowText   = (TextView)    v.findViewById(R.id.rowText);

    // 3. Configure them out as you need to
    rowText.setText("Text for this row");
    rowButton.setId(i); // So that when it is clicked we know which one has been clicked!
    rowButton.setOnClickListener(this); // See note below ...           

    /*
     * To ensure that when finding views by id on the next time round this
     * loop (or later) gie lots of spurious, unique, ids.
     */
    rowText.setId(1000+i);
    tr.setId(3000+i);
}

For a clear simple example on handling rowButton.setOnClickListener(this), see Onclicklistener for a programatically created button.

public static class StringExtensions
      {
        public static string RemoveUnnecessary(this string source)
        {
            string result = string.Empty;
            string regex = new string(Path.GetInvalidFileNameChars()) + new string(Path.GetInvalidPathChars());
            Regex reg = new Regex(string.Format("[{0}]", Regex.Escape(regex)));
            result = reg.Replace(source, "");
            return result;
        }
    }

You can use method clearly.

Use Apache commons beanutils:

static void copyProperties(Object dest, Object orig) -Copy property values from the origin bean to the destination bean for all cases where the property names are the same.

http://commons.apache.org/proper/commons-beanutils/

I have also encountered this problem and none of the solutions worked for me until i figured out i actually don't need a backdrop. You can easily remove the backdrop with the folowing code.

<div class="modal fade" id="createModal" data-backdrop="false">
    <div class="modal-dialog">
        <div class="modal-content">
            <div class="modal-header">
                <h4>Create Project</h4>
            </div>
            <div class="modal-body">Not yet made</div>
            <div class="modal-footer">
                <button type="button" class="btn btn-default" data-dismiss="modal">Close</button>
            </div>
        </div>
    </div>
</div>

Note: the data-backdrop attribute needs to be set to false (other options: static or true).

For users that are not members of the sysadmin role on the SQL Server instance you need to do the following actions to grant access to the xp_cmdshell extended stored procedure. In addition if you forgot one of the steps I have listed the error that will be thrown.

1. Enable the xp_cmdshell procedure

   Msg 15281, Level 16, State 1, Procedure xp_cmdshell, Line 1 SQL Server blocked access to procedure 'sys.xp_cmdshell' of component 'xp_cmdshell' because this component is turned off as part of the security configuration for this server. A system administrator can enable the use of 'xp_cmdshell' by using sp_configure. For more information about enabling 'xp_cmdshell', see "Surface Area Configuration" in SQL Server Books Online.*

2. Create a login for the non-sysadmin user that has public access to the master database

   Msg 229, Level 14, State 5, Procedure xp_cmdshell, Line 1 The EXECUTE permission was denied on the object 'xp_cmdshell', database 'mssqlsystemresource', schema 'sys'.*

3. Grant EXEC permission on the xp_cmdshell stored procedure

   Msg 229, Level 14, State 5, Procedure xp_cmdshell, Line 1 The EXECUTE permission was denied on the object 'xp_cmdshell', database 'mssqlsystemresource', schema 'sys'.*

4. Create a proxy account that xp_cmdshell will be run under using sp_xp_cmdshell_proxy_account

   Msg 15153, Level 16, State 1, Procedure xp_cmdshell, Line 1 The xp_cmdshell proxy account information cannot be retrieved or is invalid. Verify that the '##xp_cmdshell_proxy_account##' credential exists and contains valid information.*

It would seem from your error that either step 2 or 3 was missed. I am not familiar with clusters to know if there is anything particular to that setup.

Subscribing to # gives you a subscription to everything except for topics that start with a $ (these are normally control topics anyway).

It is better to know what you are subscribing to first though, of course, and note that some broker configurations may disallow subscribing to # explicitly.

Like this?

var iList = Method().SelectMany(n => n);

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

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

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

Hope this helps!

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

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

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

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

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

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

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

Here is how I solved the issue, might be useful to some:

Ajax modal doesn't seem to be available with boostrap 2.1.1

So I ended up coding it myself:

$('[data-toggle="modal"]').click(function(e) {
  e.preventDefault();
  var url = $(this).attr('href');
  //var modal_id = $(this).attr('data-target');
  $.get(url, function(data) {
      $(data).modal();
  });
});

Example of a link that calls a modal:

<a href="{{ path('ajax_get_messages', { 'superCategoryID': 6, 'sex': sex }) }}" data-toggle="modal">
    <img src="{{ asset('bundles/yopyourownpoet/images/messageCategories/BirthdaysAnniversaries.png') }}" alt="Birthdays" height="120" width="109"/>
</a>

I now send the whole modal markup through ajax.

Credits to drewjoh

Rather than using aliases, I prefer creating git-XXX scripts so I can source control them more easily (our devs all have a certain source controlled dir on their path for this type of thing).

This script (called git-setpush) will set the config value for remote.origin.push value to something that will only push the current branch:

#!/bin/bash -eu

CURRENT_BRANCH=$(git branch | grep '^\*' | cut -d" " -f2)
NEW_PUSH_REF=HEAD:refs/for/$CURRENT_BRANCH

echo "setting remote.origin.push to $NEW_PUSH_REF"
git config remote.origin.push $NEW_PUSH_REF

note, as we're using Gerrit, it sets the target to refs/for/XXX to push into a review branch. It also assumes origin is your remote name.

Invoke it after checking out a branch with

git checkout your-branch
git setpush

It could obviously be adapted to also do the checkout, but I like scripts to do one thing and do it well

IntelliJ IDEA seems to have reorganized the configurations panel. Now one should go to Editor -> Color Scheme and click on the gears icon to import the theme they want from external .jar files.

If you are working with google maps, then check if the lat lng are being passed into new google.maps.LatLng are of a proper format. In my case they were being passed as undefined.

lastInsertId() only work after the INSERT query.

Correct:

$stmt = $this->conn->prepare("INSERT INTO users(userName,userEmail,userPass) 
                              VALUES(?,?,?);");
$sonuc = $stmt->execute([$username,$email,$pass]);
$LAST_ID = $this->conn->lastInsertId();

Incorrect:

$stmt = $this->conn->prepare("SELECT * FROM users");
$sonuc = $stmt->execute();
$LAST_ID = $this->conn->lastInsertId(); //always return string(1)=0

Another way to extend (specifically meaning, add new methods, not change existing ones) classes, even built-in ones, is to use a preprocessor that adds the ability to extend out of/above the scope of Python itself, converting the extension to normal Python syntax before Python actually gets to see it.

I've done this to extend Python 2's str() class, for instance. str() is a particularly interesting target because of the implicit linkage to quoted data such as 'this' and 'that'.

Here's some extending code, where the only added non-Python syntax is the extend:testDottedQuad bit:

extend:testDottedQuad
def testDottedQuad(strObject):
    if not isinstance(strObject, basestring): return False
    listStrings = strObject.split('.')
    if len(listStrings) != 4: return False
    for strNum in listStrings:
        try:    val = int(strNum)
        except: return False
        if val < 0: return False
        if val > 255: return False
    return True

After which I can write in the code fed to the preprocessor:

if '192.168.1.100'.testDottedQuad():
    doSomething()

dq = '216.126.621.5'
if not dq.testDottedQuad():
    throwWarning();

dqt = ''.join(['127','.','0','.','0','.','1']).testDottedQuad()
if dqt:
    print 'well, that was fun'

The preprocessor eats that, spits out normal Python without monkeypatching, and Python does what I intended it to do.

Just as a c preprocessor adds functionality to c, so too can a Python preprocessor add functionality to Python.

My preprocessor implementation is too large for a stack overflow answer, but for those who might be interested, it is here on GitHub.

pgrep -q some_process && echo 1 || echo 0

more oneliners here

You could use a batch file with the following script:

@echo off
SET count=1
FOR /f "tokens=*" %%G IN ('dir "%CD%\src\*.java" /b /s') DO (type "%%G") >> lines.txt
SET count=1
FOR /f "tokens=*" %%G IN ('type lines.txt') DO (set /a lines+=1)
echo Your Project has currently totaled %lines% lines of code. 
del lines.txt
PAUSE

Why involve Notepad?

Sub ReplaceStringInFile()

Dim sBuf As String
Dim sTemp As String
Dim iFileNum As Integer
Dim sFileName As String

' Edit as needed
sFileName = "C:\Temp\test.txt"

iFileNum = FreeFile
Open sFileName For Input As iFileNum

Do Until EOF(iFileNum)
    Line Input #iFileNum, sBuf
    sTemp = sTemp & sBuf & vbCrLf
Loop
Close iFileNum

sTemp = Replace(sTemp, "THIS", "THAT")

iFileNum = FreeFile
Open sFileName For Output As iFileNum
Print #iFileNum, sTemp
Close iFileNum

End Sub

You don't need jQuery for this. You can use JavaScript's .childNodes.length.

Just make sure to subtract 1 if you don't want to include the default text node (which is empty by default). Thus, you'd use the following:

var count = elem.childNodes.length - 1;

The only effective mechanism for passing parameters into a build is to use Java properties:

ant -Done=1 -Dtwo=2

The following example demonstrates how you can check and ensure the expected parameters have been passed into the script

<project name="check" default="build">

    <condition property="params.set">
        <and>
            <isset property="one"/>
            <isset property="two"/>
        </and>
    </condition>

    <target name="check">
        <fail unless="params.set">
        Must specify the parameters: one, two
        </fail>
    </target>

    <target name="build" depends="check">
        <echo>
        one = ${one}
        two = ${two}
        </echo>
    </target>

</project>

[System.Reflection.Assembly]::LoadWithPartialName("Microsoft.SqlServer.Smo")

The problem with the two Powershell answers here is that the prefix can end up being duplicated since the script will potentially run over the file both before and after it has been renamed, depending on the directory being resorted as the renaming process runs. To get around this, simply use the -Exclude option:

Get-ChildItem -Exclude "house chores-*" | rename-item -NewName { "house chores-" + $_.Name }

This will prevent the process from renaming any one file more than once.

it should vary with the architecture because it represents the size of any object. So on a 32-bit system size_t will likely be at least 32-bits wide. On a 64-bit system it will likely be at least 64-bit wide.

I could be wrong, but I'm pretty sure that the "interrupt kernel" button just sends a SIGINT signal to the code that you're currently running (this idea is supported by Fernando's comment here), which is the same thing that hitting CTRL+C would do. Some processes within python handle SIGINTs more abruptly than others.

If you desperately need to stop something that is running in iPython Notebook and you started iPython Notebook from a terminal, you can hit CTRL+C twice in that terminal to interrupt the entire iPython Notebook server. This will stop iPython Notebook alltogether, which means it won't be possible to restart or save your work, so this is obviously not a great solution (you need to hit CTRL+C twice because it's a safety feature so that people don't do it by accident). In case of emergency, however, it generally kills the process more quickly than the "interrupt kernel" button.

You can cast a method group into a delegate.

The delegate signature selects 1 method out of the group.

This example picks the ToString() overload which takes a string parameter:

Func<string,string> fn = 123.ToString;
Console.WriteLine(fn("00000000"));

This example picks the ToString() overload which takes no parameters:

Func<string> fn = 123.ToString;
Console.WriteLine(fn());

- doesnt make matter but + sign is important when mobile user is in roaming
this is the standard format

<a href="tel:+4917640206387">+49 (0)176 - 402 063 87</a>

You can read more about it in the spec, see Make Telephone Numbers "Click-to-Call".

Strring temp="facebook",temp="whatsapp",temp="instagram",temp="googleplus",temp="share";

    if(temp.equals("facebook"))
    {
        Intent intent = getPackageManager().getLaunchIntentForPackage("com.facebook.katana");
        if (intent != null) {

            Intent shareIntent = new Intent(android.content.Intent.ACTION_SEND);
            shareIntent.setType("image/png");
            shareIntent.putExtra(Intent.EXTRA_STREAM, Uri.parse("file://" + "/sdcard/folder name/abc.png"));
            shareIntent.setFlags(Intent.FLAG_GRANT_READ_URI_PERMISSION);
            shareIntent.setPackage("com.facebook.katana");
            startActivity(shareIntent);

        }
        else
        {
            Toast.makeText(MainActivity.this, "Facebook require..!!", Toast.LENGTH_SHORT).show();
        }
    }
    if(temp.equals("whatsapp"))
    {

        try {
            File filePath = new File("/sdcard/folder name/abc.png");
            final ComponentName name = new ComponentName("com.whatsapp", "com.whatsapp.ContactPicker");
            Intent oShareIntent = new Intent();
            oShareIntent.setComponent(name);
            oShareIntent.setType("text/plain");
            oShareIntent.putExtra(android.content.Intent.EXTRA_TEXT, "Website : www.google.com");
            oShareIntent.putExtra(Intent.EXTRA_STREAM, Uri.fromFile(filePath));
            oShareIntent.setType("image/jpeg");
            oShareIntent.addFlags(Intent.FLAG_GRANT_READ_URI_PERMISSION);
            MainActivity.this.startActivity(oShareIntent);


        } catch (Exception e) {
            Toast.makeText(MainActivity.this, "WhatsApp require..!!", Toast.LENGTH_SHORT).show();
        }
    }
    if(temp.equals("instagram"))
    {
        Intent intent = getPackageManager().getLaunchIntentForPackage("com.instagram.android");
        if (intent != null)
        {
            File filePath =new File("/sdcard/folder name/"abc.png");
            Intent shareIntent = new Intent(android.content.Intent.ACTION_SEND);
            shareIntent.setType("image");
            shareIntent.putExtra(Intent.EXTRA_STREAM, Uri.parse("file://" + "/sdcard/Chitranagari/abc.png"));
            shareIntent.setPackage("com.instagram.android");
            startActivity(shareIntent);

        }
        else
        {
            Toast.makeText(MainActivity.this, "Instagram require..!!", Toast.LENGTH_SHORT).show();

        }
    }
    if(temp.equals("googleplus"))
    {

        try
        {

            Calendar c = Calendar.getInstance();
            SimpleDateFormat sdf = new SimpleDateFormat("dd-MM-yyyy hh:mm:ss");
            String strDate = sdf.format(c.getTime());
            Intent shareIntent = ShareCompat.IntentBuilder.from(MainActivity.this).getIntent();
            shareIntent.setType("text/plain");
            shareIntent.putExtra(Intent.EXTRA_TEXT, "Website : www.google.com");
            shareIntent.putExtra(Intent.EXTRA_STREAM, Uri.parse("file://" + "/sdcard/folder name/abc.png"));
            shareIntent.setPackage("com.google.android.apps.plus");
            shareIntent.setAction(Intent.ACTION_SEND);
            startActivity(shareIntent);
        }catch (Exception e)
        {
            e.printStackTrace();
            Toast.makeText(MainActivity.this, "Googleplus require..!!", Toast.LENGTH_SHORT).show();
        }
    }
    if(temp.equals("share")) {

        File filePath =new File("/sdcard/folder name/abc.png");  //optional //internal storage
        Intent shareIntent = new Intent();
        shareIntent.setAction(Intent.ACTION_SEND);
        shareIntent.putExtra(Intent.EXTRA_TEXT, "Website : www.google.com");
        shareIntent.putExtra(Intent.EXTRA_STREAM, Uri.fromFile(filePath));  //optional//use this when you want to send an image
        shareIntent.setType("image/jpeg");
        shareIntent.addFlags(Intent.FLAG_GRANT_READ_URI_PERMISSION);
        startActivity(Intent.createChooser(shareIntent, "send"));

    }

Fortunately, if you are using Angular 5.1+, you do not need to implement a hack anymore as native support has been added. You just need to set onSameUrlNavigation to 'reload' in the RouterModule options :

@ngModule({
 imports: [RouterModule.forRoot(routes, {onSameUrlNavigation: ‘reload’})],
 exports: [RouterModule],
 })

More information can be found here: https://medium.com/engineering-on-the-incline/reloading-current-route-on-click-angular-5-1a1bfc740ab2

As mentioned in comments, this is a scoping issue. Specifically, $con is not in scope within your getPosts function.

You should pass your connection object in as a dependency, eg

function getPosts(mysqli $con) {
    // etc

I would also highly recommend halting execution if your connection fails or if errors occur. Something like this should suffice

mysqli_report(MYSQLI_REPORT_ERROR | MYSQLI_REPORT_STRICT); // throw exceptions
$con=mysqli_connect("localhost","xxxx","xxxx","xxxxx");

getPosts($con);

Just a clarification on the answer given by Bkkbrad.

I tried this suggestion and it did not work for me.

For example,

split('aa|bb','\\|')

produced:

["","a","a","|","b","b",""]

But,

split('aa|bb','[|]')

produced the desired result:

["aa","bb"]

Including the metacharacter '|' inside the square brackets causes it to be interpreted literally, as intended, rather than as a metacharacter.

For elaboration of this behaviour of regexp, see: http://www.regular-expressions.info/charclass.html

I had the same problem with my Galaxy S3. My problem was that the idVendor value 04E8 was not the right one. To find the right one connect your smartphone to the computer and run lsusb in the terminal. It will list your smartphone like this:

Bus 002 Device 010: ID 18d1:d002 Google Inc.

So the right idVendor value is 18d1. And the line in the /etc/udev/rules.d/51-android.rules has to be:

SUBSYSTEM=="usb", ATTR{idVendor}=="18d1", MODE="0666", GROUP="plugdev" 

Then I run sudo udevadm control --reload-rules and everything worked!

I just wanted to use the import and export in JavaScript files.

Everyone says it's not possible. But, as of May 2018, it's possible to use above in plain Node.js, without any modules like Babel, etc.

Here is a simple way to do it.

Create the below files, run, and see the output for yourself.

Also don't forget to see Explanation below.

File myfile.mjs

function myFunc() {
    console.log("Hello from myFunc")
}

export default myFunc;

File index.mjs

import myFunc from "./myfile.mjs"  // Simply using "./myfile" may not work in all resolvers

myFunc();

Run

node  --experimental-modules  index.mjs

Output

(node:12020) ExperimentalWarning: The ESM module loader is experimental.

Hello from myFunc

Explanation:

1. Since it is experimental modules, .js files are named .mjs files
2. While running you will add --experimental-modules to the node index.mjs
3. While running with experimental modules in the output you will see: "(node:12020) ExperimentalWarning: The ESM module loader is experimental. "
4. I have the current release of Node.js, so if I run node --version, it gives me "v10.3.0", though the LTE/stable/recommended version is 8.11.2 LTS.
5. Someday in the future, you could use .js instead of .mjs, as the features become stable instead of Experimental.
6. More on experimental features, see: https://nodejs.org/api/esm.html

You can download it from the below link: https://github.com/VVS279/DoubleKeyHashMap/blob/master/src/com/virtualMark/doubleKeyHashMap/DoubleKeyHashMap.java

https://github.com/VVS279/DoubleKeyHashMap

You can use double key: value hashmap,

   DoubleKeyHashMap<Integer, Integer, String> doubleKeyHashMap1 = new 
   DoubleKeyHashMap<Integer, Integer, String>();

   DoubleKeyHashMap<String, String, String> doubleKeyHashMap2 = new 
   DoubleKeyHashMap<String, String, String>();

you can easily search for a line like "@Test" and then use the quickfix "add junit 4 library to the build path" at this line. i think this is faster than adding junit manually to the project.

The main intention is for keeping your application's database file(s) in.

And no this will not be accessable from the web by default.

Put the table in the second image on Sheet2, columns D to F.

In Sheet1, cell D2 use the formula

=iferror(vlookup($A2,Sheet2!$D$1:$F$100,column(A1),false),"")

copy across and down.

Edit: here is a picture. The data is in two sheets. On Sheet1, enter the formula into cell D2. Then copy the formula across to F2 and then down as many rows as you need.

When you use

this.getClass().getResource("myFile.ext")

getResource will try to find the resource relative to the package. If you use:

this.getClass().getResource("/myFile.ext")

getResource will treat it as an absolute path and simply call the classloader like you would have if you'd done.

this.getClass().getClassLoader().getResource("myFile.ext")

The reason you can't use a leading / in the ClassLoader path is because all ClassLoader paths are absolute and so / is not a valid first character in the path.

Try adding a TextView to the menubar first and using setCompoundDrawables() to place the image on whichever side you want. Bond click activity to the textview in the end.

MenuItem item = menu.add(Menu.NONE, R.id.menu_item_save, 10, R.string.save);
item.setShowAsAction(MenuItem.SHOW_AS_ACTION_ALWAYS|MenuItem.SHOW_AS_ACTION_WITH_TEXT);
TextView textBtn = getTextButton(btn_title, btn_image);
item.setActionView(textBtn);
textBtn.setOnClickListener(new View.OnClickListener() {
    @Override
    public void onClick(View v) {
           // your selector here   }
    });

You can literally customize everything here:

public TextView getTextButton (String btn_title, Drawable btn_image) {
    TextView textBtn = new TextView(this);
    textBtn.setText(btn_title);
    textBtn.setTextColor(Color.WHITE);
    textBtn.setTextSize(18);
    textBtn.setTypeface(Typeface.create("sans-serif-light", Typeface.BOLD));
    textBtn.setGravity(Gravity.CENTER_VERTICAL | Gravity.CENTER_HORIZONTAL);
    Drawable img = btn_image;
    img.setBounds(0, 0, 30, 30);
    textBtn.setCompoundDrawables(null, null, img, null); 
    // left,top,right,bottom. In this case icon is right to the text

    return textBtn;
}

You might try using a library like redux-saga. It allows for a very clean way to sequence async functions, fire off actions, use delays and more. It is very powerful!

From Sql Server 2008 you have "date" format.

So you can use

SELECT * FROM LOGS WHERE CONVERT(date,[CHECK_IN]) BETWEEN '2013-10-18' AND '2013-10-18'

https://docs.microsoft.com/en-us/sql/t-sql/data-types/date-transact-sql

An explicit cursor is defined as such in a declaration block:

DECLARE 
CURSOR cur IS 
  SELECT columns FROM table WHERE condition;
BEGIN
...

an implicit cursor is implented directly in a code block:

...
BEGIN
   SELECT columns INTO variables FROM table where condition;
END;
...

This command list the tasks related to the 'node' and have each of them terminated.

kill -9  $( ps -ae | grep 'node' | awk '{print $1}')

We can implement ajax request by using http service in AngularJs, which helps to read/load data from remote server.

$http service methods are listed below,

 $http.get()
 $http.post()
 $http.delete()
 $http.head()
 $http.jsonp()
 $http.patch()
 $http.put()

One of the Example:

    $http.get("sample.php")
        .success(function(response) {
            $scope.getting = response.data; // response.data is an array
    }).error(){

        // Error callback will trigger
    });

http://www.drtuts.com/ajax-requests-angularjs/

I had this issue while using Python installed with sudo make altinstall on Opensuse linux. It seems that the compiled libraries are installed in /usr/local/lib64 but Python is looking for them in /usr/local/lib.

I solved it by creating a dynamic link to the relevant directory in /usr/local/lib

sudo ln -s /usr/local/lib64/python3.8/lib-dynload/ /usr/local/lib/python3.8/lib-dynload

I suspect the better thing to do would be to specify libdir as an argument to configure (at the start of the build process) but I haven't tested it that way.

Just for information, i made a little tool for Windows doing the same thing than "grep -F -x -f file1 file2" (As i haven't found anything equivalent to this command on Windows)

Here it is : http://www.nerdzcore.com/?page=commonlines

Usage is "CommonLines inputFile1 inputFile2 outputFile"

Source code is also available (GPL)

Walking Backwards

If you're looking for a purely PHP solution, you can also simply count backwards through the list, access it front-to-back:

$accounts = Array(
  '@jonathansampson',
  '@f12devtools',
  '@ieanswers'
);

$index = count($accounts);

while($index) {
  echo sprintf("<li>%s</li>", $accounts[--$index]);
}

The above sets $index to the total number of elements, and then begins accessing them back-to-front, reducing the index value for the next iteration.

Reversing the Array

You could also leverage the array_reverse function to invert the values of your array, allowing you to access them in reverse order:

$accounts = Array(
  '@jonathansampson',
  '@f12devtools',
  '@ieanswers'
);

foreach ( array_reverse($accounts) as $account ) {
  echo sprintf("<li>%s</li>", $account);
}

**Simple solution**
public static void main(String[] args) {
    Scanner sc = new Scanner(System.in);
    int size;
    System.out.println("Enter the number of size of array");
    size = sc.nextInt();
    int[] a = new int[size];
    System.out.println("Enter the array element");
    //For reading the element
    for(int i=0;i<size;i++) {
        a[i] = sc.nextInt();
    }
    //For print the array element
    for(int i : a) {
        System.out.print(i+" ,");
    }
}

Create a bash function

split_on_commas() {
  local IFS=,
  local WORD_LIST=($1)
  for word in "${WORD_LIST[@]}"; do
    echo "$word"
  done
}

split_on_commas "this,is a,list" | while read item; do
  # Custom logic goes here
  echo Item: ${item}
done

... this generates the following output:

Item: this
Item: is a
Item: list

(Note, this answer has been updated according to some feedback)

this.myService.getConfig().subscribe(
  (res) => console.log(res),
  (err) => console.log(err),
  () => console.log('done!')
);

Lots of good answers so far. Here's a frill:

$ make 2>&1 | tee filetokeepitin.txt 

will let you watch the output scroll past.

For Eclipse

A good way to add external JARs to your Android project or any Java project is:

1. Create a folder called libs in your project's root folder
2. Copy your JAR files to the libs folder

3. Now right click on the Jar file and then select Build Path > Add to Build Path, which will create a folder called 'Referenced Libraries' within your project

   By doing this, you will not lose your libraries that are being referenced on your hard drive whenever you transfer your project to another computer.

For Android Studio

1. If you are in Android View in project explorer, change it to Project view as below

2. Right click the desired module where you would like to add the external library, then select New > Directroy and name it as 'libs'
3. Now copy the blah_blah.jar into the 'libs' folder
4. Right click the blah_blah.jar, Then select 'Add as Library..'. This will automatically add and entry in build.gradle as compile files('libs/blah_blah.jar') and sync the gradle. And you are done

Please Note : If you are using 3rd party libraries then it is better to use transitive dependencies where Gradle script automatically downloads the JAR and the dependency JAR when gradle script run.

Ex : compile 'com.google.android.gms:play-services-ads:9.4.0'

Read more about Gradle Dependency Mangement

Just change + to -:

str = str.replace(/[^a-z0-9-]/g, "");

You can read it as:

1. [^ ]: match NOT from the set
2. [^a-z0-9-]: match if not a-z, 0-9 or -
3. / /g: do global match

More information:

• https://developer.mozilla.org/en-US/docs/JavaScript/Guide/Regular_Expressions

You can use the Where to filter and Select to get the desired value.

MyList.Where(i=>i.name == yourName).Select(j=>j.value);

We can use versionKey: false in Schema definition

'use strict';

const mongoose = require('mongoose');

export class Account extends mongoose.Schema {

    constructor(manager) {

        var trans = {
            tran_date: Date,
            particulars: String,
            debit: Number,
            credit: Number,
            balance: Number
        }

        super({
            account_number: Number,
            account_name: String,
            ifsc_code: String,
            password: String,
            currency: String,
            balance: Number,
            beneficiaries: Array,
            transaction: [trans]
        }, {
            versionKey: false // set to false then it wont create in mongodb
        });

        this.pre('remove', function(next) {
            manager
                .getModel(BENEFICIARY_MODEL)
                .remove({
                    _id: {
                        $in: this.beneficiaries
                    }
                })
                .exec();
            next();
        });
    }

}

Spring framework itself handles json conversion when controller is annotated properly.

For eg:

   @PutMapping(produces = {"application/json"})
        @ResponseBody
        public UpdateResponse someMethod(){ //do something
return UpdateResponseInstance;
}

Here spring internally converts the UpdateResponse object to corresponding json string and returns it. In order to do it spring internally uses Jackson library.

If you require a json representation of a model object anywhere apart from controller then you can use objectMapper provided by jackson. Model should be properly annotated for this to work.

Eg:

ObjectMapper mapper = new ObjectMapper();
SomeModelClass someModelObject = someModelRepository.findById(idValue).get();
mapper.writeValueAsString(someModelObject);

$command = 'convert -density 300 ';
                        if(Input::Post('height')!='' && Input::Post('width')!=''){
                            $command.='-resize '.Input::Post('width').'x'.Input::Post('height').' ';
                        }
                        $command.=$svg.' '.$source;
                        exec($command);
                        @unlink($svg);

or using : potrace demo :Tool4dev.com

add $row = mysql_fetch_object($result); after your mysql_query();

your html <img src="<?php echo $row->dvdimage; ?>" width="175" height="200" />

Use the .IndexOf() method of the list. Specs for the method can be found on MSDN.

Remember that you must first load jquery script and then the script js

<script type="text/javascript" src="http://code.jquery.com/jquery-2.2.4.min.js"></script>
<script type="text/javascript" src="example.js"></script>

Html is read sequentially!

Enable Pytest for you project

1. Open the Settings/Preferences | Tools | Python Integrated Tools settings dialog as described in Choosing Your Testing Framework.
2. In the Default test runner field select pytest.
3. Click OK to save the settings.

In my case, it worked like that:

from BeautifulSoup import BeautifulSoup as bs

url="http://blabla.com"

soup = bs(urllib.urlopen(url))
for link in soup.findAll('a'):
        print link.string

Hope it helps!

There is an excellent three part guide for Histogram Adjustments in MATLAB (broken original link, archive.org link), the first part is on Histogram Stretching.

As P0W has provided complete syntax for each C++ version, I would like to add couple of more points by looking at your code

• Always take const & as argument as to avoid extra copies of the same object.
• use unordered_map as its always faster to use. See this discussion

here is a sample code:

#include <iostream>
#include <unordered_map>
using namespace std;

void output(const auto& table)
{
   for (auto const & [k, v] : table)
   {
        std::cout << "Key: " << k << " Value: " << v << std::endl;
   }
}

int main() {
    std::unordered_map<string, int> mydata = {
        {"one", 1},
        {"two", 2},
        {"three", 3}
    };
    output(mydata);
    return 0;
}

onreadystatechange Stores a function (or the name of a function) to be called automatically each time the readyState property changes readyState Holds the status of the XMLHttpRequest. Changes from 0 to 4:

0: request not initialized

1: server connection established

2: request received

3: processing request

4: request finished and response is ready

status 200: "OK"

404: Page not found

Sometimes int() may be needed:

titleDic = {'??????':1, '??????':2}

def categoryTitleForNumber(self, num):
    search_title = ''
    for title, titleNum in self.titleDic.items():
        if int(titleNum) == int(num):
            search_title = title
    return search_title

You might be able to mask the jagging using blurred box-shadows. Using -webkit-box-shadow instead of box-shadow will make sure it doesn't affect non-webkit browsers. You might want to check Safari and the mobile webkit browsers though.

The result is somewhat better, but still a lot less good then with the other browsers:

Could you try this one:

create or replace 
procedure point_triangle
IS
BEGIN
  FOR thisteam in (select P.FIRSTNAME,P.LASTNAME, SUM(P.PTS) S from PLAYERREGULARSEASON P  where P.TEAM = 'IND'  group by P.FIRSTNAME, P.LASTNAME order by SUM(P.PTS) DESC)
  LOOP
    dbms_output.put_line(thisteam.FIRSTNAME|| ' ' || thisteam.LASTNAME  || ':' || thisteam.S);
  END LOOP;

END;

This works better, as you can show validationMessage for a specified key:

    ModelState.AddModelError("keyName","Message");

and display it like this:

    @Html.ValidationMessage("keyName")

After all these months have passed after the original question, it's now worth pointing out that Microsoft has devised a solution of their own. See http://blogs.msdn.com/b/vbertocci/archive/2012/11/20/introducing-the-developer-preview-of-the-json-web-token-handler-for-the-microsoft-net-framework-4-5.aspx for details.

This should work:

 cat "$API" >> "$CONFIG"

You need to use the >> operator to append to a file. Redirecting with > causes the file to be overwritten. (truncated).

When using the object oriented API, the Axes object has two useful methods for removing the axis text, set_xticklabels() and set_xticks().

Say you create a plot using

fig, ax = plt.subplots(1)
ax.plot(x, y)

If you simply want to remove the tick labels, you could use

ax.set_xticklabels([])

or to remove the ticks completely, you could use

ax.set_xticks([])

These methods are useful for specifying exactly where you want the ticks and how you want them labeled. Passing an empty list results in no ticks, or no labels, respectively.

Using begin() from here: http://www.reddit.com/r/Python/comments/hms4z/ask_pyreddit_if_you_were_making_your_own/c1wycci

Python 3.2 (r32:88445, Mar 25 2011, 19:28:28) 
[GCC 4.5.2] on linux2
Type "help", "copyright", "credits" or "license" for more information.
>>> lst = [[567,345,234],[253,465,756, 2345],[333,777,111, 555]]
>>> begin = lambda *args: args[-1]
>>> list(map(lambda x: begin(x.sort(), x[1]), lst))
[345, 465, 333]

Try using the not() method instead of the :not() selector.

$(".content a").click(function() {
    $(".content a").not(this).hide("slow");
});

Threads -- > Threads shares a memory space,it is an abstraction of the CPU,it is lightweight. Processes --> Processes have their own memory space,it is an abstraction of a computer. To parallelise task you need to abstract a CPU. However the advantages of using a process over a thread is security,stability while a thread uses lesser memory than process and offers lesser latency. An example in terms of web would be chrome and firefox. In case of Chrome each tab is a new process hence memory usage of chrome is higher than firefox ,while the security and stability provided is better than firefox. The security here provided by chrome is better,since each tab is a new process different tab cannot snoop into the memory space of a given process.

Let me quote the manuals first:

perldoc exec():

The exec function executes a system command and never returns-- use system instead of exec if you want it to return

perldoc system():

Does exactly the same thing as exec LIST , except that a fork is done first, and the parent process waits for the child process to complete.

In contrast to exec and system, backticks don't give you the return value but the collected STDOUT.

perldoc `String`:

A string which is (possibly) interpolated and then executed as a system command with /bin/sh or its equivalent. Shell wildcards, pipes, and redirections will be honored. The collected standard output of the command is returned; standard error is unaffected.

Alternatives:

In more complex scenarios, where you want to fetch STDOUT, STDERR or the return code, you can use well known standard modules like IPC::Open2 and IPC::Open3.

Example:

use IPC::Open2;
my $pid = open2(\*CHLD_OUT, \*CHLD_IN, 'some', 'cmd', 'and', 'args');
waitpid( $pid, 0 );
my $child_exit_status = $? >> 8;

Finally, IPC::Run from the CPAN is also worth looking at…

Overall, the conventions are “think like you're just delivering web pages”.

For a PUT, I'd return the same view that you'd get if you did a GET immediately after; that would result in a 200 (well, assuming the rendering succeeds of course). For a POST, I'd do a redirect to the resource created (assuming you're doing a creation operation; if not, just return the results); the code for a successful create is a 201, which is really the only HTTP code for a redirect that isn't in the 300 range.

I've never been happy about what a DELETE should return (my code currently produces an HTTP 204 and an empty body in this case).

$cmd = "gs -q -dNOPAUSE -dBATCH -sDEVICE=pdfwrite -sOutputFile=".$new." ".implode(" ", $files);
shell_exec($cmd);

A simplified version of Chauhan's answer

If you are programming in PHP, it is useful to split lines by \n and then trim() each line (provided you don't care about whitespace) to give you a "clean" line regardless.

foreach($line in explode("\n", $data))
{
    $line = trim($line);
    ...
}

Lazy simple version for forgetfuls like me:

git rebase -i HEAD~3 or however many commits instead of 3.

Turn this

pick YourCommitMessageWhatever
pick YouGetThePoint
pick IdkManItsACommitMessage

into this

pick YourCommitMessageWhatever
s YouGetThePoint
s IdkManItsACommitMessage

and do some action where you hit esc then enter to save the changes. [1]

When the next screen comes up, get rid of those garbage # lines [2] and create a new commit message or something, and do the same escape enter action. [1]

Wowee, you have fewer commits. Or you just broke everything.

[1] - or whatever works with your git configuration. This is just a sequence that's efficient given my setup.

[2] - you'll see some stuff like # this is your n'th commit a few times, with your original commits right below these message. You want to remove these lines, and create a commit message to reflect the intentions of the n commits that you're combining into 1.

There are two ways to approach this.

Option 1: Update the Android Manifest If the settings Activity is always called from the same activity, you can make the relationship in the Android Manifest. Android will automagically show the 'back' button in the ActionBar

<activity
    android:name=".SettingsActivity"
    android:label="Setting Activity">
    <meta-data
        android:name="android.support.PARENT_ACTIVITY"
        android:value="com.example.example.MainActivity" />
</activity>

Option 2: Change a setting for the ActionBar If you don't know which Activity will call the Settings Activity, you can create it like this. First in your activity that extends ActionBarActivity (Make sure your @imports match the level of compatibility you are looking for).

@Override
protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.activity_settings_test);
    ActionBar actionBar = getSupportActionBar();
    actionBar.setHomeButtonEnabled(true);
    actionBar.setDisplayHomeAsUpEnabled(true);
}

Then, detect the 'back button' press and tell Android to close the currently open Activity.

@Override
public boolean onOptionsItemSelected(MenuItem item) {
    switch (item.getItemId()) {
        case android.R.id.home:
            // app icon in action bar clicked; goto parent activity.
            this.finish();
            return true;
        default:
            return super.onOptionsItemSelected(item);
    }
}

That should do it!

Check the XML. It is not a valid xml.

Prolog is the first line with xml version info. It ok not to include it in your xml.

This error is thrown when the parser reads an invalid tag at the start of the document. Normally where the prolog resides.

e.g.

1. Root/><document>
2. Root<document>

You can create a directory inside the camera folder and save the image. After that, you can simply perform your scan. It will instantly show your image in the gallery.

String root = Environment.getExternalStoragePublicDirectory(Environment.DIRECTORY_DCIM).toString()+ "/Camera/Your_Directory_Name";
File myDir = new File(root);
myDir.mkdirs();
String fname = "Image-" + image_name + ".png";
File file = new File(myDir, fname);
System.out.println(file.getAbsolutePath());
if (file.exists()) file.delete();
    Log.i("LOAD", root + fname);
    try {
        FileOutputStream out = new FileOutputStream(file);
        finalBitmap.compress(Bitmap.CompressFormat.PNG, 90, out);
        out.flush();
        out.close();
    } catch (Exception e) {
       e.printStackTrace();
    }

MediaScannerConnection.scanFile(context, new String[]{file.getPath()}, new String[]{"image/jpeg"}, null);

I don't know if something similar has been made by now or not, but I made a nice attribute search function using vars(). vars() creates a dictionary of the attributes of a class you pass through it.

class Player():
    def __init__(self):
        self.name = 'Bob'
        self.age = 36
        self.gender = 'Male'

s = vars(Player())
#From this point if you want to print all the attributes, just do print(s)

#If the class has a lot of attributes and you want to be able to pick 1 to see
#run this function
def play():
    ask = input("What Attribute?>: ")
    for key, value in s.items():
        if key == ask:
            print("self.{} = {}".format(key, value))
            break
    else:
        print("Couldn't find an attribute for self.{}".format(ask))

I'm developing a pretty massive Text Adventure in Python, my Player class so far has over 100 attributes. I use this to search for specific attributes I need to see.

As noted by TJ Crowder and Adamski, one reference is to an interface, the other to a specific implementation of the interface. According to Joshua Block, you should always attempt to code to interfaces, to allow you to better handle changes to underlying implementation - i.e. if HashMap suddenly was not ideal for your solution and you needed to change the map implementation, you could still use the Map interface, and change the instantiation type.

If you're wanting to style the button using CSS, make it a type="submit" button instead of type="image". type="image" expects a SRC, which you can't set in CSS.

Note that Safari won't let you style any button in the manner you're looking for. If you need Safari support, you'll need to place an image and have an onclick function that submits the form.

Quite logical the difference between PUT & PATCH w.r.t sending full & partial data for replacing/updating respectively. However, just couple of points as below

1. Sometimes POST is considered as for updates w.r.t PUT for create
2. Does HTTP mandates/checks for sending full vs partial data in PATCH? Otherwise, PATCH may be quite same as update as in PUT/POST

There's no need for nested looping (outer looping through tables and inner looping through all table columns). One can retrieve all (or arbitrary selected/filtered) table-column combinations from INFORMATION_SCHEMA.COLUMNS and in one loop simply pass through (search) all of them:

DECLARE @search VARCHAR(100), @table SYSNAME, @column SYSNAME

DECLARE curTabCol CURSOR FOR
    SELECT c.TABLE_SCHEMA + '.' + c.TABLE_NAME, c.COLUMN_NAME
    FROM INFORMATION_SCHEMA.COLUMNS c
    JOIN INFORMATION_SCHEMA.TABLES t 
      ON t.TABLE_NAME=c.TABLE_NAME AND t.TABLE_TYPE='BASE TABLE' -- avoid views
    WHERE c.DATA_TYPE IN ('varchar','nvarchar') -- searching only in these column types
    --AND c.COLUMN_NAME IN ('NAME','DESCRIPTION') -- searching only in these column names

SET @search='john'

OPEN curTabCol
FETCH NEXT FROM curTabCol INTO @table, @column

WHILE (@@FETCH_STATUS = 0)
BEGIN
    EXECUTE('IF EXISTS 
             (SELECT * FROM ' + @table + ' WHERE ' + @column + ' = ''' + @search + ''') 
             PRINT ''' + @table + '.' + @column + '''')
    FETCH NEXT FROM curTabCol INTO @table, @column
END

CLOSE curTabCol
DEALLOCATE curTabCol

I fixed my problem with the following code:

<div style="width: 180px; overflow: hidden;">_x000D_
   <select style="width: auto;" name="abc" id="10">_x000D_
     <option value="-1">AAAAAAAAAAA</option>_x000D_
     <option value="123">123</option>_x000D_
   </select>_x000D_
</div>

Hope it helps!

for path, dirs, files in os.walk('.'):
    print path, dirs, files
    del dirs[:] # go only one level deep

This is what I'm using to get the running jobs (principally so I can kill the ones which have probably hung):

SELECT
    job.Name, job.job_ID
    ,job.Originating_Server
    ,activity.run_requested_Date
    ,datediff(minute, activity.run_requested_Date, getdate()) AS Elapsed
FROM
    msdb.dbo.sysjobs_view job 
        INNER JOIN msdb.dbo.sysjobactivity activity
        ON (job.job_id = activity.job_id)
WHERE
    run_Requested_date is not null 
    AND stop_execution_date is null
    AND job.name like 'Your Job Prefix%'

As Tim said, the MSDN / BOL documentation is reasonably good on the contents of the sysjobsX tables. Just remember they are tables in MSDB.

setRetainInstance(boolean) is useful when you want to have some component which is not tied to Activity lifecycle. This technique is used for example by rxloader to "handle Android's activity lifecyle for rxjava's Observable" (which I've found here).

Below script will work well for both active and disconnected sessions as long as user has access to run logoff command remotely. All you have to do is change the servername from "YourServerName" on 4th line.

param (
    $queryResults = $null,
    [string]$UserName = $env:USERNAME,
    [string]$ServerName = "YourServerName"
)


if (Test-Connection $ServerName -Count 1 -Quiet) {  
    Write-Host "`n`n`n$ServerName is online!" -BackgroundColor Green -ForegroundColor Black


    Write-Host ("`nQuerying Server: `"$ServerName`" for disconnected sessions under UserName: `"" + $UserName.ToUpper() + "`"...") -BackgroundColor Gray -ForegroundColor Black

        query user $UserName /server:$ServerName 2>&1 | foreach {  

            if ($_ -match "Active") {
                Write-Host "Active Sessions"
                $queryResults = ("`n$ServerName," + (($_.trim() -replace ' {2,}', ','))) | ConvertFrom-Csv -Delimiter "," -Header "ServerName","UserName","SessionName","SessionID","CurrentState","IdealTime","LogonTime"


                $queryResults | ft
                Write-Host "Starting logoff procedure..." -BackgroundColor Gray -ForegroundColor Black

                $queryResults | foreach {
                    $Sessionl = $_.SessionID
                    $Serverl = $_.ServerName
                    Write-Host "Logging off"$_.username"from $serverl..." -ForegroundColor black -BackgroundColor Gray
                    sleep 2
                    logoff $Sessionl /server:$Serverl /v

                }


            }                
            elseif ($_ -match "Disc") {
                Write-Host "Disconnected Sessions"
                $queryResults = ("`n$ServerName," + (($_.trim() -replace ' {2,}', ','))) |  ConvertFrom-Csv -Delimiter "," -Header "ServerName","UserName","SessionID","CurrentState","IdealTime","LogonTime"

                $queryResults | ft
                Write-Host "Starting logoff procedure..." -BackgroundColor Gray -ForegroundColor Black

                $queryResults | foreach {
                    $Sessionl = $_.SessionID
                    $Serverl = $_.ServerName
                    Write-Host "Logging off"$_.username"from $serverl..."
                    sleep 2
                    logoff $Sessionl /server:$Serverl /v

                }
            }
            elseif ($_ -match "The RPC server is unavailable") {

                Write-Host "Unable to query the $ServerName, check for firewall settings on $ServerName!" -ForegroundColor White -BackgroundColor Red
            }
            elseif ($_ -match "No User exists for") {Write-Host "No user session exists"}

    }
}
else {

    Write-Host "`n`n`n$ServerName is Offline!" -BackgroundColor red -ForegroundColor white
    Write-Host "Error: Unable to connect to $ServerName!" -BackgroundColor red -ForegroundColor white
    Write-Host "Either the $ServerName is down or check for firewall settings on server $ServerName!" -BackgroundColor Yellow -ForegroundColor black
}





Read-Host "`n`nScript execution finished, press enter to exit!"

Some sample outputs. For active session:

For disconnected sessions:

if no sessions found: Check out this solution as well to query all AD servers for your username and logoff only disconnected sessions. The script will also tell you if there were error connecting or querying the server.

Powershell to find out disconnected RDP session and log off at the same time

Storing a list of object instances is very simple

class MyClass(object):
    def __init__(self, number):
        self.number = number

my_objects = []

for i in range(100):
    my_objects.append(MyClass(i))

# later

for obj in my_objects:
    print obj.number

Angular 1.3 provides $watchGroup specifically for this purpose:

https://docs.angularjs.org/api/ng/type/$rootScope.Scope#$watchGroup

This seems to provide the same ultimate result as a standard $watch on an array of expressions. I like it because it makes the intention clearer in the code.

If Image folder location is public/assets/img/default.jpg. You can try in view

   <img src="{{ URL::to('/assets/img/default.jpg') }}">

Straight from the horse's mouth:

If you prefer to have dict-like view of the attributes, you can use the standard Python idiom, vars():

>>> parser = argparse.ArgumentParser()
>>> parser.add_argument('--foo')
>>> args = parser.parse_args(['--foo', 'BAR'])
>>> vars(args)
{'foo': 'BAR'}

— The Python Standard Library, 16.4.4.6. The Namespace object

Maybe the dot notation for current folder is incorrect?

Print the result of File.getCanonicalFile() to check the path.

Can anyone explain to me why src isn't the current folder?

Your IDE is setting the class-path when invoking the JVM.

E.G. (reaches for Netbeans) If you select menus File | Project Properties (all classes) you might see something similar to:

It is the Working Directory that is of interest here.

It seems that MacPorts could be installed in El Capitan right now: https://www.macports.org/install.php Then you probably can install gdb by link you mentioned.

Not exactly the original question but to find the sum total of all the images without double-counting shared layers, the following is useful (ubuntu 18):

sudo du -h -d1  /var/lib/docker/overlay2 | sort -h

You probably have a log4j.properties file somewhere in the project. In that file you can configure which level of debug output you want. See this example:

log4j.rootLogger=info, console

log4j.appender.console=org.apache.log4j.ConsoleAppender
log4j.appender.console.layout=org.apache.log4j.PatternLayout
log4j.appender.console.layout.ConversionPattern=%-4r [%t] %-5p %c %x - %m%n

log4j.logger.com.example=debug

The first line sets the log level for the root logger to "info", i.e. only info, warn, error and fatal will be printed to the console (which is the appender defined a little below that).

The last line sets the logger for com.example.* (if you get your loggers via LogFactory.getLogger(getClass())) will be at debug level, i.e. debug will also be printed.

Representation is the same, the meaning is different. e.g, 0xFF, it both represented as "FF". When it is treated as "char", it is negative number -1; but it is 255 as unsigned. When it comes to bit shifting, it is a big difference since the sign bit is not shifted. e.g, if you shift 255 right 1 bit, it will get 127; shifting "-1" right will be no effect.

cp somefile somefile_`date +%d%b%Y`

Late to the party, but in case this happens with a WORDPRESS installation :

#1273 - Unknown collation: 'utf8mb4_unicode_520_ci

In phpmyadmin, under export method > Format-specific options( custom export )

Set to : MYSQL40

If you will try to import now, you now might get another error message :

1064 - You have an error in your SQL syntax; .....

That is because The older TYPE option that was synonymous with ENGINE was removed in MySQL 5.5.

Open your .sql file , search and replace all instances

from TYPE= to ENGINE=

Now the import should go smoothly.

I used this:

HTML

<div class="container">
 <div class="parent">
  <div class="child">
   <div class="inner-container"></div>
  </div>
 </div>
</div>

CSS

.container {
  overflow-x: hidden;
}

.child {
  position: relative;
  width: 200%;
  left: -50%;
}

.inner-container{
  max-width: 1179px;
  margin:0 auto;
}

The situation is essentially that VS is not set up to go through a proxy to get to the resources it's trying to get to (when using FTP). This is the cause of the 407 error you're getting. I did some research on this and there are a few things that you can try to get this debugged. Fundamentally this is a bit of a flawed area in the product that is supposed to be reviewed in a later release.

Here are some solutions, in order of less complex to more complex:

<configuration>
  <system.net>
    <settings>
      <servicePointManager expect100Continue="false" />
    </settings>
  </system.net>
</configuration>

<system.net>
  <defaultProxy useDefaultCredentials="true" enabled="true">
      <proxy proxyaddress="http://your.proxyserver.ip:port"/>
  </defaultProxy>
  <settings>
  ...

<defaultProxy useDefaultCredentials="true" enabled="true">
    <proxy usesystemdefault="True" />
</defaultProxy>

Hope this solves it for you.

Let me offer a textbook definition on "clustering index", which is taken from 15.6.1 from Database Systems: The Complete Book:

We may also speak of clustering indexes, which are indexes on an attribute or attributes such that all of tuples with a fixed value for the search key of this index appear on roughly as few blocks as can hold them.

To understand the definition, let's take a look at Example 15.10 provided by the textbook:

A relation R(a,b) that is sorted on attribute a and stored in that order, packed into blocks, is surely clusterd. An index on a is a clustering index, since for a given a-value a1, all the tuples with that value for a are consecutive. They thus appear packed into blocks, execept possibly for the first and last blocks that contain a-value a1, as suggested in Fig.15.14. However, an index on b is unlikely to be clustering, since the tuples with a fixed b-value will be spread all over the file unless the values of a and b are very closely correlated.

Note that the definition does not enforce the data blocks have to be contiguous on the disk; it only says tuples with the search key are packed into as few data blocks as possible.

A related concept is clustered relation. A relation is "clustered" if its tuples are packed into roughly as few blocks as can possibly hold those tuples. In other words, from a disk block perspective, if it contains tuples from different relations, then those relations cannot be clustered (i.e., there is a more packed way to store such relation by swapping the tuples of that relation from other disk blocks with the tuples the doesn't belong to the relation in the current disk block). Clearly, R(a,b) in example above is clustered.

To connect two concepts together, a clustered relation can have a clustering index and nonclustering index. However, for non-clustered relation, clustering index is not possible unless the index is built on top of the primary key of the relation.

"Cluster" as a word is spammed across all abstraction levels of database storage side (three levels of abstraction: tuples, blocks, file). A concept called "clustered file", which describes whether a file (an abstraction for a group of blocks (one or more disk blocks)) contains tuples from one relation or different relations. It doesn't relate to the clustering index concept as it is on file level.

However, some teaching material likes to define clustering index based on the clustered file definition. Those two types of definitions are the same on clustered relation level, no matter whether they define clustered relation in terms of data disk block or file. From the link in this paragraph,

An index on attribute(s) A on a file is a clustering index when: All tuples with attribute value A = a are stored sequentially (= consecutively) in the data file

Storing tuples consecutively is the same as saying "tuples are packed into roughly as few blocks as can possibly hold those tuples" (with minor difference on one talking about file, the other talking about disk). It's because storing tuple consecutively is the way to achieve "packed into roughly as few blocks as can possibly hold those tuples".

I quote from http://www.php.net/manual/en/language.oop5.visibility.php

Note: The PHP 4 method of declaring a variable with the var keyword is still supported for compatibility reasons (as a synonym for the public keyword). In PHP 5 before 5.1.3, its usage would generate an E_STRICT warning.

Chr(10) is the Line Feed character and Chr(13) is the Carriage Return character.

You probably won't notice a difference if you use only one or the other, but you might find yourself in a situation where the output doesn't show properly with only one or the other. So it's safer to include both.

Historically, Line Feed would move down a line but not return to column 1:

This  
    is  
        a  
            test.

Similarly Carriage Return would return to column 1 but not move down a line:

This  
is  
a  
test.

Paste this into a text editor and then choose to "show all characters", and you'll see both characters present at the end of each line. Better safe than sorry.

This worked for me..

select ROW_NUMBER() over (order by column_name_of your choice ) as pri_key, the other columns of the view

If you still want to show the item but make it not clickable and look disabled with CSS:

CSS:

.disabled {
    pointer-events:none; //This makes it not clickable
    opacity:0.6;         //This grays it out to look disabled
}

HTML:

<li class="disabled">Disabled List Item</li>

Also, if you are using BootStrap, they already have a class called disabled for this purpose. See this example.

As @LV98 pointed out, users could change this on the client side and submit a selection you weren't expecting. You will want to validate at the server as well.

Here is a method to merge a dictionary of data frames while keeping the column names in sync with the dictionary. Also it fills in missing values if needed:

This is the function to merge a dict of data frames

def MergeDfDict(dfDict, onCols, how='outer', naFill=None):
  keys = dfDict.keys()
  for i in range(len(keys)):
    key = keys[i]
    df0 = dfDict[key]
    cols = list(df0.columns)
    valueCols = list(filter(lambda x: x not in (onCols), cols))
    df0 = df0[onCols + valueCols]
    df0.columns = onCols + [(s + '_' + key) for s in valueCols] 

    if (i == 0):
      outDf = df0
    else:
      outDf = pd.merge(outDf, df0, how=how, on=onCols)   

  if (naFill != None):
    outDf = outDf.fillna(naFill)

  return(outDf)

OK, lets generates data and test this:

def GenDf(size):
  df = pd.DataFrame({'categ1':np.random.choice(a=['a', 'b', 'c', 'd', 'e'], size=size, replace=True),
                      'categ2':np.random.choice(a=['A', 'B'], size=size, replace=True), 
                      'col1':np.random.uniform(low=0.0, high=100.0, size=size), 
                      'col2':np.random.uniform(low=0.0, high=100.0, size=size)
                      })
  df = df.sort_values(['categ2', 'categ1', 'col1', 'col2'])
  return(df)


size = 5
dfDict = {'US':GenDf(size), 'IN':GenDf(size), 'GER':GenDf(size)}   
MergeDfDict(dfDict=dfDict, onCols=['categ1', 'categ2'], how='outer', naFill=0)

If you want to keep it simple go ahead and try this out.

$page_number = mysqli_escape_string($con, $_GET['page']);
$count_per_page = 20;
$next_offset = $page_number * $count_per_page;
$cat =mysqli_query($con, "SELECT * FROM categories LIMIT $count_per_page OFFSET $next_offset");
while ($row = mysqli_fetch_array($cat))
        $count = $row[0];

The rest is up to you. If you have result comming from two tables i suggest you try a different approach.

This could be done running a simple find command:

find * -maxdepth 0 -exec mv {} PRE_{} \;

The above command will prefix all files and folders in the current directory with PRE_.

Difference between list and tuple

1. Literal

   someTuple = (1,2)
   someList  = [1,2] 
   

2. Size

   a = tuple(range(1000))
   b = list(range(1000))
   
   a.__sizeof__() # 8024
   b.__sizeof__() # 9088
   

   Due to the smaller size of a tuple operation, it becomes a bit faster, but not that much to mention about until you have a huge number of elements.

3. Permitted operations

   b    = [1,2]   
   b[0] = 3       # [3, 2]
   
   a    = (1,2)
   a[0] = 3       # Error
   

   That also means that you can't delete an element or sort a tuple. However, you could add a new element to both list and tuple with the only difference that since the tuple is immutable, you are not really adding an element but you are creating a new tuple, so the id of will change

   a     = (1,2)
   b     = [1,2]  
   
   id(a)          # 140230916716520
   id(b)          # 748527696
   
   a   += (3,)    # (1, 2, 3)
   b   += [3]     # [1, 2, 3]
   
   id(a)          # 140230916878160
   id(b)          # 748527696
   

4. Usage

   As a list is mutable, it can't be used as a key in a dictionary, whereas a tuple can be used.

   a    = (1,2)
   b    = [1,2] 
   
   c = {a: 1}     # OK
   c = {b: 1}     # Error
   

If you read the help file for ?boxplot, you'll see there is a names= parameter.

     boxplot(apple, banana, watermelon, names=c("apple","banana","watermelon"))

Another way to get around this problem, if you are using some server side scripting language that allows you to manipulate the posted data, is to declare your html form like this :

<form>
<input name="a_name"/>
<input name="a_second_name"/>
<input name="subform[another_name]"/>
<input name="subform[another_second_name]"/>
</form>

If you print the posted data (I will use PHP here), you will get an array like this :

//print_r($_POST) will output :
    array(
    'a_name' => 'a_name_value',
    'a_second_name' => 'a_second_name_value',
    'subform' => array(
      'another_name' => 'a_name_value',
      'another_second_name' => 'another_second_name_value',
      ),
    );

Then you can just do something like :

$my_sub_form_data = $_POST['subform'];
unset($_POST['subform']);

Your $_POST now has only your "main form" data, and your subform data is stored in another variable you can manipulate at will.

Hope this helps!

Option 1
You didn't say much about your environment, but assuming you have it available you could use a PowerShell script; one example is here. The essence of this is:

$smtp = New-Object Net.Mail.SmtpClient("ho-ex2010-caht1.exchangeserverpro.net")
$smtp.Send("[email protected]","[email protected]","Test Email","This is a test")

You could then launch the script from the command line as per this example:

powershell.exe -noexit c:\scripts\test.ps1

Note that PowerShell 2.0, which is installed by default on Windows 7 and Windows Server 2008R2, includes a simpler Send-MailMessage command, making things easier.

Option 2
If you're prepared to use third-party software, is something line this SendEmail command-line tool. It depends on your target environment, though; if you're deploying your batch file to multiple machines, that will obviously require inclusion (but not formal installation) each time.

Option 3
You could drive Outlook directly from a VBA script, which in turn you would trigger from a batch file; this would let you send an email using Outlook itself, which looks to be closest to what you're wanting. There are two parts to this; first, figure out the VBA scripting required to send an email. There are lots of examples for this online, including from Microsoft here. Essence of this is:

Sub SendMessage(DisplayMsg As Boolean, Optional AttachmentPath)
    Dim objOutlook As Outlook.Application
    Dim objOutlookMsg As Outlook.MailItem
    Dim objOutlookRecip As Outlook.Recipient
    Dim objOutlookAttach As Outlook.Attachment

    Set objOutlook = CreateObject("Outlook.Application")
    Set objOutlookMsg  = objOutlook.CreateItem(olMailItem)

    With objOutlookMsg
        Set objOutlookRecip = .Recipients.Add("Nancy Davolio")
        objOutlookRecip.Type = olTo
        ' Set the Subject, Body, and Importance of the message.
        .Subject = "This is an Automation test with Microsoft Outlook"
        .Body = "This is the body of the message." &vbCrLf & vbCrLf
        .Importance = olImportanceHigh  'High importance

        If Not IsMissing(AttachmentPath) Then
            Set objOutlookAttach = .Attachments.Add(AttachmentPath)
        End If

        For Each ObjOutlookRecip In .Recipients
            objOutlookRecip.Resolve
        Next

        .Save
        .Send
    End With
    Set objOutlook = Nothing
End Sub

Then, launch Outlook from the command line with the /autorun parameter, as per this answer (alter path/macroname as necessary):

C:\Program Files\Microsoft Office\Office11\Outlook.exe" /autorun macroname

Option 4
You could use the same approach as option 3, but move the Outlook VBA into a PowerShell script (which you would run from a command line). Example here. This is probably the tidiest solution, IMO.

Inside a manager:

def delete_everything(self):
    Reporter.objects.all().delete()

def drop_table(self):
    cursor = connection.cursor()
    table_name = self.model._meta.db_table
    sql = "DROP TABLE %s;" % (table_name, )
    cursor.execute(sql)

For me, on Chrome (updated June 2018) the color for an unvisited link is #2779F6. You can always get this by zooming in really close, taking a screenshot, and visiting a website like html-color-codes.info that will convert a screenshot to a color code.

Another reason why an undefined index notice will be thrown, would be that a column was omitted from a database query.

I.e.:

$query = "SELECT col1 FROM table WHERE col_x = ?";

Then trying to access more columns/rows inside a loop.

I.e.:

print_r($row['col1']);
print_r($row['col2']); // undefined index thrown

or in a while loop:

while( $row = fetching_function($query) ) {

    echo $row['col1'];
    echo "<br>";
    echo $row['col2']; // undefined index thrown
    echo "<br>";
    echo $row['col3']; // undefined index thrown

}

Something else that needs to be noted is that on a *NIX OS and Mac OS X, things are case-sensitive.

Consult the followning Q&A's on Stack:

• Are table names in MySQL case sensitive?

• mysql case sensitive table names in queries

• MySql - Case Sensitive issue of tables in different server

Double them to escape;

SELECT *
  FROM Header
 WHERE userID LIKE '%''%'

Easiest way to use this function is to start by 'Recording a Macro'. Once you start recording, save the file to the location you want, with the name you want, and then of course set the file type, most likely 'Excel Macro Enabled Workbook' ~ 'XLSM'

Stop recording and you can start inspecting your code.

I wrote the code below which allows you to save a workbook using the path where the file was originally located, naming it as "Event [date in cell "A1"]"

Option Explicit

Sub SaveFile()

Dim fdate As Date
Dim fname As String
Dim path As String

fdate = Range("A1").Value
path = Application.ActiveWorkbook.path

If fdate > 0 Then
    fname = "Event " & fdate
    Application.ActiveWorkbook.SaveAs Filename:=path & "\" & fname, _
        FileFormat:=xlOpenXMLWorkbookMacroEnabled, CreateBackup:=False
Else
    MsgBox "Chose a date for the event", vbOKOnly
End If

End Sub

Copy the code into a new module and then write a date in cell "A1" e.g. 01-01-2016 -> assign the sub to a button and run. [Note] you need to make a save file before this script will work, because a new workbook is saved to the default autosave location!

On 2/22/18, when I tried the official recommendation:

pip3 install --upgrade tensorflow

I got this error

Could not find a version that satisfies the requirement tensorflow

But instead using

pip install --upgrade tensorflow

installed it ok. (I ran it from the ps command prompt.)

I have 64-bit windows 10, 64-bit python 3.6.3, and pip3 version 9.0.1.

Allows getting any URL on your system, not just a current one.

import org.springframework.hateoas.mvc.ControllerLinkBuilder
...
ControllerLinkBuilder linkBuilder = ControllerLinkBuilder.linkTo(methodOn(YourController.class).getSomeEntityMethod(parameterId, parameterTwoId))

URI methodUri = linkBuilder.Uri()
String methodUrl = methodUri.getPath()

The type attribute is used to define the MIME type within the HTML document. Depending on what DOCTYPE you use, the type value is required in order to validate the HTML document.

The language attribute lets the browser know what language you are using (Javascript vs. VBScript) but is not necessarily essential and, IIRC, has been deprecated.

You are inside a namespace so you should use \Exception to specify the global namespace:

try {

  $this->buildXMLHeader();

} catch (\Exception $e) {

    return $e->getMessage();
}

In your code you've used catch (Exception $e) so Exception is being searched in/as:

App\Services\PayUService\Exception

Since there is no Exception class inside App\Services\PayUService so it's not being triggered. Alternatively, you can use a use statement at the top of your class like use Exception; and then you can use catch (Exception $e).

In my case

$psql
postgres=# \g
postgres=# SELECT version();
                                                       version
---------------------------------------------------------------------------------------------------------------------
 PostgreSQL 8.4.21 on x86_64-pc-linux-gnu, compiled by GCC gcc-4.6.real (Ubuntu/Linaro 4.6.3-1ubuntu5) 4.6.3, 64-bit
(1 row)

Hope it will help someone

ECMAscript edition 5 also offers you the neat methods Object.keys() and Object.getOwnPropertyNames().

So

Object.keys( buttons );  // ['button1', 'button2'];

Here is the split function I use:

--
-- split function
--    s   : string to split
--    del : delimiter
--    i   : index requested
--

DROP FUNCTION IF EXISTS SPLIT_STRING;

DELIMITER $

CREATE FUNCTION 
   SPLIT_STRING ( s VARCHAR(1024) , del CHAR(1) , i INT)
   RETURNS VARCHAR(1024)
   DETERMINISTIC -- always returns same results for same input parameters
    BEGIN

        DECLARE n INT ;

        -- get max number of items
        SET n = LENGTH(s) - LENGTH(REPLACE(s, del, '')) + 1;

        IF i > n THEN
            RETURN NULL ;
        ELSE
            RETURN SUBSTRING_INDEX(SUBSTRING_INDEX(s, del, i) , del , -1 ) ;        
        END IF;

    END
$

DELIMITER ;


SET @agg = "G1;G2;G3;G4;" ;

SELECT SPLIT_STRING(@agg,';',1) ;
SELECT SPLIT_STRING(@agg,';',2) ;
SELECT SPLIT_STRING(@agg,';',3) ;
SELECT SPLIT_STRING(@agg,';',4) ;
SELECT SPLIT_STRING(@agg,';',5) ;
SELECT SPLIT_STRING(@agg,';',6) ;

The sign in such cases (i.e when one or both operands are negative) is implementation-defined. The spec says in §5.6/4 (C++03),

The binary / operator yields the quotient, and the binary % operator yields the remainder from the division of the first expression by the second. If the second operand of / or % is zero the behavior is undefined; otherwise (a/b)*b + a%b is equal to a. If both operands are nonnegative then the remainder is nonnegative; if not, the sign of the remainder is implementation-defined.

That is all the language has to say, as far as C++03 is concerned.

Just To mention, in CSS 3

:after

should be used like this

::after

From https://developer.mozilla.org/de/docs/Web/CSS/::after :

The ::after notation was introduced in CSS 3 in order to establish a discrimination between pseudo-classes and pseudo-elements. Browsers also accept the notation :after introduced in CSS 2.

So it should be:

li { display: inline; list-style-type: none; }
li::after { content: ", "; }
li:last-child::before { content: "and "; }
li:last-child::after { content: "."; }

Use iloc to access by position (rather than label):

In [11]: df = pd.DataFrame([[1, 2], [3, 4]], ['a', 'b'], ['A', 'B'])

In [12]: df
Out[12]: 
   A  B
a  1  2
b  3  4

In [13]: df.iloc[0]  # first row in a DataFrame
Out[13]: 
A    1
B    2
Name: a, dtype: int64

In [14]: df['A'].iloc[0]  # first item in a Series (Column)
Out[14]: 1

Starting from Python 3.1, you can use importlib :

import importlib  
foobar = importlib.import_module("foo-bar")

( https://docs.python.org/3/library/importlib.html )

You can use display:inline-block with white-space:nowrap. Write like this:

.scrolls {
    overflow-x: scroll;
    overflow-y: hidden;
    height: 80px;
    white-space:nowrap
}
.imageDiv img {
    box-shadow: 1px 1px 10px #999;
    margin: 2px;
    max-height: 50px;
    cursor: pointer;
    display:inline-block;
    *display:inline;/* For IE7*/
    *zoom:1;/* For IE7*/
    vertical-align:top;
 }

Check this http://jsfiddle.net/YbrX3/

Just to make your script more readable, maybe use this proc:

DELIMITER ;;

DROP PROCEDURE IF EXISTS printf;
CREATE PROCEDURE printf(thetext TEXT)
BEGIN

  select thetext as ``;

 END;

;;

DELIMITER ;

Now you can just do:

call printf('Counting products that have missing short description');

Comparable lets a class implement its own comparison:

• it's in the same class (it is often an advantage)
• there can be only one implementation (so you can't use that if you want two different cases)

By comparison, Comparator is an external comparison:

• it is typically in a unique instance (either in the same class or in another place)
• you name each implementation with the way you want to sort things
• you can provide comparators for classes that you do not control
• the implementation is usable even if the first object is null

In both implementations, you can still choose to what you want to be compared. With generics, you can declare so, and have it checked at compile-time. This improves safety, but it is also a challenge to determine the appropriate value.

As a guideline, I generally use the most general class or interface to which that object could be compared, in all use cases I envision... Not very precise a definition though ! :-(

• Comparable<Object> lets you use it in all codes at compile-time (which is good if needed, or bad if not and you loose the compile-time error) ; your implementation has to cope with objects, and cast as needed but in a robust way.
• Comparable<Itself> is very strict on the contrary.

Funny, when you subclass Itself to Subclass, Subclass must also be Comparable and be robust about it (or it would break Liskov Principle, and give you runtime errors).

This will give you the date in 24 hour format.

    Date date = new Date();
    date.setHours(date.getHours() + 8);
    System.out.println(date);
    SimpleDateFormat simpDate;
    simpDate = new SimpleDateFormat("kk:mm:ss");
    System.out.println(simpDate.format(date));

After making no changes to a production server we began receiving this error. After trying several different things and thinking that perhaps there were DNS issues, restarting IIS fixed the issue (restarting only the site did not fix the issue). It likely won't work for everyone but if we tried that first it would have saved a lot of time.

I've created Xcode 4 templates to simplify the steps provided by Tyler.
The result is Python Project Template for Xcode 4.

Now what you need to do is download the templates, move it to /Developer/Library/Xcode/Templates/Project Templates/Mac/Others/ and then new a Python project with Xcode 4.

It still needs manual Scheme setup (you can refer to steps 12–20 provided by Tyler.)