You simply can't use View as a Header of ListView.

Because the view which is being passed in has to be inflated.

Look at my answer at Android ListView addHeaderView() nullPointerException for predefined Views for more info.

EDIT:

Look at this tutorial Android ListView and ListActivity - Tutorial .

EDIT 2: This link is broken Android ListActivity with a header or footer

pytest constantly evolves and with one of the nice changes in the recent past it is now possible to simultaneously test for

• the exception type (strict test)
• the error message (strict or loose check using a regular expression)

Two examples from the documentation:

with pytest.raises(ValueError, match='must be 0 or None'):
    raise ValueError('value must be 0 or None')

with pytest.raises(ValueError, match=r'must be \d+$'):
    raise ValueError('value must be 42')

I have been using that approach in a number of projects and like it very much.

If there is no such mechanism, what is a pattern/convention for such problems?

The term 'cleanup' might be more appropriate, but will use 'destructor' to match OP

Suppose you write some javascript entirely with 'function's and 'var's. Then you can use the pattern of writing all the functions code within the framework of a try/catch/finally lattice. Within finally perform the destruction code.

Instead of the C++ style of writing object classes with unspecified lifetimes, and then specifying the lifetime by arbitrary scopes and the implicit call to ~() at scope end (~() is destructor in C++), in this javascript pattern the object is the function, the scope is exactly the function scope, and the destructor is the finally block.

If you are now thinking this pattern is inherently flawed because try/catch/finally doesn't encompass asynchronous execution which is essential to javascript, then you are correct. Fortunately, since 2018 the asynchronous programming helper object Promise has had a prototype function finally added to the already existing resolve and catch prototype functions. That means that that asynchronous scopes requiring destructors can be written with a Promise object, using finally as the destructor. Furthermore you can use try/catch/finally in an async function calling Promises with or without await, but must be aware that Promises called without await will be execute asynchronously outside the scope and so handle the desctructor code in a final then.

In the following code PromiseA and PromiseB are some legacy API level promises which don't have finally function arguments specified. PromiseC DOES have a finally argument defined.

async function afunc(a,b){
    try {
        function resolveB(r){ ... }
        function catchB(e){ ... }
        function cleanupB(){ ... }
        function resolveC(r){ ... }
        function catchC(e){ ... }
        function cleanupC(){ ... }
        ...
        // PromiseA preced by await sp will finish before finally block.  
        // If no rush then safe to handle PromiseA cleanup in finally block 
        var x = await PromiseA(a);
        // PromiseB,PromiseC not preceded by await - will execute asynchronously
        // so might finish after finally block so we must provide 
        // explicit cleanup (if necessary)
        PromiseB(b).then(resolveB,catchB).then(cleanupB,cleanupB);
        PromiseC(c).then(resolveC,catchC,cleanupC);
    }
    catch(e) { ... }
    finally { /* scope destructor/cleanup code here */ }
}

I am not advocating that every object in javascript be written as a function. Instead, consider the case where you have a scope identified which really 'wants' a destructor to be called at its end of life. Formulate that scope as a function object, using the pattern's finally block (or finally function in the case of an asynchronous scope) as the destructor. It is quite like likely that formulating that functional object obviated the need for a non-function class which would otherwise have been written - no extra code was required, aligning scope and class might even be cleaner.

Note: As others have written, we should not confuse destructors and garbage collection. As it happens C++ destructors are often or mainly concerned with manual garbage collection, but not exclusively so. Javascript has no need for manual garbage collection, but asynchronous scope end-of-life is often a place for (de)registering event listeners, etc..

Factory Method patter: BeanFactory for creating instance of an object Singleton : instance type can be singleton for a context Prototype : instance type can be prototype. Builder pattern: you can also define a method in a class who will be responsible for creating complex instance.

Just summarizing an answer that was helpful to me (noting @erasmospunk's comment about using base-64 encoding). My goal was to have a short string that was mostly unique...

I'm no expert, so please correct this if it has any glaring errors (in Python again like the accepted answer):

import base64
import hashlib
import uuid

unique_id = uuid.uuid4()
# unique_id = UUID('8da617a7-0bd6-4cce-ae49-5d31f2a5a35f')

hash = hashlib.sha1(str(unique_id).encode("UTF-8"))
# hash.hexdigest() = '882efb0f24a03938e5898aa6b69df2038a2c3f0e'

result = base64.b64encode(hash.digest())
# result = b'iC77DySgOTjliYqmtp3yA4osPw4='

The result here is using more than just hex characters (what you'd get if you used hash.hexdigest()) so it's less likely to have a collision (that is, should be safer to truncate than a hex digest).

Note: Using UUID4 (random). See http://en.wikipedia.org/wiki/Universally_unique_identifier for the other types.

For inversion from 0 to 1 and back you can use this library InvertImages, which provides support for IE 10. I also tested with IE 11 and it should work.

You can use ref.

import ChildForm from './components/ChildForm'

new Vue({
  el: '#app',
  data: {
    item: {}
  },
  template: `
  <div>
     <ChildForm :item="item" ref="form" />
     <button type="submit" @click.prevent="submit">Post</button>
  </div>
  `,
  methods: {
    submit() {
      this.$refs.form.submit()
    }
  },
  components: { ChildForm },
})

If you dislike tight coupling, you can use Event Bus as shown by @Yosvel Quintero. Below is another example of using event bus by passing in the bus as props.

import ChildForm from './components/ChildForm'

new Vue({
  el: '#app',
  data: {
    item: {},
    bus: new Vue(),
  },
  template: `
  <div>
     <ChildForm :item="item" :bus="bus" ref="form" />
     <button type="submit" @click.prevent="submit">Post</button>
  </div>
  `,
  methods: {
    submit() {
      this.bus.$emit('submit')
    }
  },
  components: { ChildForm },
})

Code of component.

<template>
 ...
</template>

<script>
export default {
  name: 'NowForm',
  props: ['item', 'bus'],
  methods: {
    submit() {
        ...
    }
  },
  mounted() {
    this.bus.$on('submit', this.submit)
  },  
}
</script>

https://code.luasoftware.com/tutorials/vuejs/parent-call-child-component-method/

Suppose RetailerProfileModel is your Main class and RetailerPaymentModel is an inner class within it. You can create an object of the Inner class outside the class as follows:

RetailerProfileModel.RetailerPaymentModel paymentModel
        = new RetailerProfileModel().new RetailerPaymentModel();

If you put together the answers so far, clean up and improve, you would arrive at this superior query:

UPDATE sales
SET    status = 'ACTIVE'
WHERE  (saleprice, saledate) IN (
    SELECT saleprice, saledate
    FROM   sales
    GROUP  BY saleprice, saledate
    HAVING count(*) = 1 
    );

Which is much faster than either of them. Nukes the performance of the currently accepted answer by factor 10 - 15 (in my tests on PostgreSQL 8.4 and 9.1).

But this is still far from optimal. Use a NOT EXISTS (anti-)semi-join for even better performance. EXISTS is standard SQL, has been around forever (at least since PostgreSQL 7.2, long before this question was asked) and fits the presented requirements perfectly:

UPDATE sales s
SET    status = 'ACTIVE'
WHERE  NOT EXISTS (
   SELECT FROM sales s1                     -- SELECT list can be empty for EXISTS
   WHERE  s.saleprice = s1.saleprice
   AND    s.saledate  = s1.saledate
   AND    s.id <> s1.id                     -- except for row itself
   )
AND    s.status IS DISTINCT FROM 'ACTIVE';  -- avoid empty updates. see below

db<>fiddle here
Old SQL Fiddle

Unique key to identify row

If you don't have a primary or unique key for the table (id in the example), you can substitute with the system column ctid for the purpose of this query (but not for some other purposes):

   AND    s1.ctid <> s.ctid

_{Every table should have a primary key. Add one if you didn't have one, yet. I suggest a serial or an IDENTITY column in Postgres 10+.}

Related:

• In-order sequence generation
• Auto increment table column

How is this faster?

The subquery in the EXISTS anti-semi-join can stop evaluating as soon as the first dupe is found (no point in looking further). For a base table with few duplicates this is only mildly more efficient. With lots of duplicates this becomes way more efficient.

Exclude empty updates

For rows that already have status = 'ACTIVE' this update would not change anything, but still insert a new row version at full cost (minor exceptions apply). Normally, you do not want this. Add another WHERE condition like demonstrated above to avoid this and make it even faster:

If status is defined NOT NULL, you can simplify to:

AND status <> 'ACTIVE';

The data type of the column must support the <> operator. Some types like json don't. See:

• How to query a json column for empty objects?

Subtle difference in NULL handling

This query (unlike the currently accepted answer by Joel) does not treat NULL values as equal. The following two rows for (saleprice, saledate) would qualify as "distinct" (though looking identical to the human eye):

(123, NULL)
(123, NULL)

Also passes in a unique index and almost anywhere else, since NULL values do not compare equal according to the SQL standard. See:

• Create unique constraint with null columns

OTOH, GROUP BY, DISTINCT or DISTINCT ON () treat NULL values as equal. Use an appropriate query style depending on what you want to achieve. You can still use this faster query with IS NOT DISTINCT FROM instead of = for any or all comparisons to make NULL compare equal. More:

• How to delete duplicate rows without unique identifier

If all columns being compared are defined NOT NULL, there is no room for disagreement.

The following functions (modified BFS with a recursive path-finding function between two nodes) will do the job for an acyclic graph:

from collections import defaultdict

# modified BFS
def find_all_parents(G, s):
    Q = [s]
    parents = defaultdict(set)
    while len(Q) != 0:
        v = Q[0]
        Q.pop(0)
        for w in G.get(v, []):
            parents[w].add(v)
            Q.append(w) 
    return parents

# recursive path-finding function (assumes that there exists a path in G from a to b)   
def find_all_paths(parents, a, b): 
    return [a] if a == b else [y + b for x in list(parents[b]) for y in find_all_paths(parents, a, x)]

For example, with the following graph (DAG) G given by

G = {'A':['B','C'], 'B':['D'], 'C':['D', 'F'], 'D':['E', 'F'], 'E':['F']}

if we want to find all paths between the nodes 'A' and 'F' (using the above-defined functions as find_all_paths(find_all_parents(G, 'A'), 'A', 'F')), it will return the following paths:

The lower the loss, the better a model (unless the model has over-fitted to the training data). The loss is calculated on training and validation and its interperation is how well the model is doing for these two sets. Unlike accuracy, loss is not a percentage. It is a summation of the errors made for each example in training or validation sets.

In the case of neural networks, the loss is usually negative log-likelihood and residual sum of squares for classification and regression respectively. Then naturally, the main objective in a learning model is to reduce (minimize) the loss function's value with respect to the model's parameters by changing the weight vector values through different optimization methods, such as backpropagation in neural networks.

Loss value implies how well or poorly a certain model behaves after each iteration of optimization. Ideally, one would expect the reduction of loss after each, or several, iteration(s).

The accuracy of a model is usually determined after the model parameters are learned and fixed and no learning is taking place. Then the test samples are fed to the model and the number of mistakes (zero-one loss) the model makes are recorded, after comparison to the true targets. Then the percentage of misclassification is calculated.

For example, if the number of test samples is 1000 and model classifies 952 of those correctly, then the model's accuracy is 95.2%.

There are also some subtleties while reducing the loss value. For instance, you may run into the problem of over-fitting in which the model "memorizes" the training examples and becomes kind of ineffective for the test set. Over-fitting also occurs in cases where you do not employ a regularization, you have a very complex model (the number of free parameters W is large) or the number of data points N is very low.

If you have multiple numeric fields, I suggest subclassing UITextField to create a NumericTextField that always displays a numeric keyboard with a done button. Then, simply associate your numeric fields with this class in the Interface Builder and you won't need any additional code in any of your View Controllers. The following is Swift 3.0 class that I'm using in Xcode 8.0.

class NumericTextField: UITextField {
   let numericKbdToolbar = UIToolbar()

    // MARK: Initilization
    required init?(coder aDecoder: NSCoder) {
        super.init(coder: aDecoder)
        self.initialize()
    }

    override init(frame: CGRect) {
        super.init(frame: frame)
        self.initialize()
    }

    // Sets up the input accessory view with a Done button that closes the keyboard
    func initialize()
    {
        self.keyboardType = UIKeyboardType.numberPad

        numericKbdToolbar.barStyle = UIBarStyle.default
        let space = UIBarButtonItem(barButtonSystemItem: UIBarButtonSystemItem.flexibleSpace, target: nil, action: nil)
        let callback = #selector(NumericTextField.finishedEditing)
        let donebutton = UIBarButtonItem(barButtonSystemItem: UIBarButtonSystemItem.done, target: self, action: callback)
        numericKbdToolbar.setItems([space, donebutton], animated: false)
        numericKbdToolbar.sizeToFit()
        self.inputAccessoryView = numericKbdToolbar
    }

    // MARK: On Finished Editing Function
    func finishedEditing()
    {
        self.resignFirstResponder()
    }
}

Swift 4.2

class NumericTextField: UITextField {
    let numericKbdToolbar = UIToolbar()

    // MARK: Initilization
    required init?(coder aDecoder: NSCoder) {
        super.init(coder: aDecoder)
        self.initialize()
    }

    override init(frame: CGRect) {
        super.init(frame: frame)
        self.initialize()
    }

    // Sets up the input accessory view with a Done button that closes the keyboard
    func initialize()
    {
        self.keyboardType = UIKeyboardType.numberPad

        numericKbdToolbar.barStyle = UIBarStyle.default
        let space = UIBarButtonItem(barButtonSystemItem: UIBarButtonItem.SystemItem.flexibleSpace, target: nil, action: nil)
        let callback = #selector(NumericTextField.finishedEditing)
        let donebutton = UIBarButtonItem(barButtonSystemItem: UIBarButtonItem.SystemItem.done, target: self, action: callback)
        numericKbdToolbar.setItems([space, donebutton], animated: false)
        numericKbdToolbar.sizeToFit()
        self.inputAccessoryView = numericKbdToolbar
    }

    // MARK: On Finished Editing Function
    @objc func finishedEditing()
    {
        self.resignFirstResponder()
    }
}

If you're not having a network error, and wanting to surface an error from the backend, for exmple insufficient privileges, server your response with a 200 and an error message. Then in your success handler check data.status == 'error'

Check if you have a .git directory in your home folder and if you don't:

mkdir ~/.git

Solved the problem in my case.

In your own answer, you effectively do this:

Dim SrcRange As Range ' you should always declare things explicitly
Set SrcRange = Sheets("Src").Range("A2:A9")
SrcRange.Copy Destination:=Sheets("Dest").Range("A2")

You're not really "extracting" the range to a variable, you're setting a reference to the range.

In many situations, this can be more efficient as well as more flexible:

Dim Src As Variant
Src= Sheets("Src").Range("A2:A9").Value 'Read range to array
'Here you can add code to manipulate your Src array
'...
Sheets("Dest").Range("A2:A9").Value = Src 'Write array back to another range

Here's what I would do:

json = "{\"errorCode\":0,\"errorMessage\":\"\",\"results\":{\"http://www.foo.com\":{\"hash\":\"e5TEd\",\"shortKeywordUrl\":\"\",\"shortUrl\":\"http://b.i.t.ly/1a0p8G\",\"userHash\":\"1a0p8G\"}},\"statusCode\":\"OK\"}"

hash = JSON.parse(json)
results = hash[:results]

If you know the source url then you can use:

source_url = "http://www.foo.com".to_sym

results.fetch(source_url)[:shortUrl]
=> "http://b.i.t.ly/1a0p8G"

If you don't know the key for the source url you can do the following:

results.fetch(results.keys[0])[:shortUrl]
=> "http://b.i.t.ly/1a0p8G"

If you're not wanting to lookup keys using symbols, you can convert the keys in the hash to strings:

results = json[:results].stringify_keys

results.fetch(results.keys[0])["shortUrl"]
=> "http://b.i.t.ly/1a0p8G"

If you're concerned the JSON structure might change you could build a simple JSON Schema and validate the JSON before attempting to access keys. This would provide a guard.

NOTE: Had to mangle the bit.ly url because of posting rules.

It could be that the corresponding Gradle version was not downloaded properly.

You could delete the broken file at

rm -rf .gradle/wrapper/dists/

and restart studio.

or try

File -> Settings -> Gradle -> Check Offline Work

and download the file from the official site and extract to the destination location

.gradle/wrapper/dists/

Use reduce function

reduce(lambda x, y: x + y, A, [])

Or sum

sum(A, [])

Another Alternative for the command line that is easier than fighting with quotation marks is to put the json into a file, and use the @ prefix of curl parameters, e.g. with the following in json.txt:

{ "syncheader" : {
    "servertimesync" : "20131126121749",
    "deviceid" : "testDevice"
  }
}

then in my case I issue:

curl localhost:9000/sync -H "Content-type:application/json" -X POST -d @json.txt

Keeps the json more readable too.

In c/cpp there is no shortcut but to initialize all the arrays with the zero subscript.Ex:

  int arr[10] = {0};

But in java there is a magic tool called Arrays.fill() which will fill all the values in an array with the integer of your choice.Ex:

  import java.util.Arrays;

    public class Main
    {
      public static void main(String[] args)
       {
         int ar[] = {2, 2, 1, 8, 3, 2, 2, 4, 2};
         Arrays.fill(ar, 10);
         System.out.println("Array completely filled" +                          
            " with 10\n" + Arrays.toString(ar));
   }
 }

For a API v3 solution, refer to:

http://blog.enbake.com/draw-circle-with-google-maps-api-v3

It creates circle around points and then show markers within and out of the range with different colors. They also calculate dynamic radius but in your case radius is fixed so may be less work.

for superclasses with many members I would suggest you to use @Delegate

@Data
public class A {
    @Delegate public class AInner{
        private final int x;
        private final int y;
    }
}

@Data
@EqualsAndHashCode(callSuper = true)
public class B extends A {
    private final int z;

    public B(A.AInner a, int z) {
        super(a);
        this.z = z;
    }
}

jQuery's attr method returns the value of the attribute:

The .attr() method gets the attribute value for only the first element in the matched set. To get the value for each element individually, use a looping construct such as jQuery's .each() or .map() method.

All you need is:

$('html').attr('lang') == 'fr-FR'

However, you might want to do a case-insensitive match:

$('html').attr('lang').toLowerCase() === 'fr-fr'

jQuery's val method returns the value of a form element.

The .val() method is primarily used to get the values of form elements such as input, select and textarea. In the case of <select multiple="multiple"> elements, the .val() method returns an array containing each selected option; if no option is selected, it returns null.

How about something like this... http://jsfiddle.net/UnsungHero97/Qwpq4/1207/

CSS

input {
    border: 1px solid #4195fc; /* some kind of blue border */

    /* other CSS styles */

    /* round the corners */
    -webkit-border-radius: 4px;
       -moz-border-radius: 4px;
            border-radius: 4px;


    /* make it glow! */
    -webkit-box-shadow: 0px 0px 4px #4195fc;
       -moz-box-shadow: 0px 0px 4px #4195fc;
            box-shadow: 0px 0px 4px #4195fc; /* some variation of blue for the shadow */

}

Simple: run these codes:::

 1:: ls -lart/var/run/my*

   2::mkdir /var/run/mysqld

    3::touch /var/run/mysqld/mysqld.sock
    4:ls -lart /var/run/mysqld
    5::chown -R mysql /var/run/mysqld
    6::ls -lart /var/run/mysqld
REstart your mysql server

then finaly type mysql -u root or mysql -u root -p and press enter key. thanks

I don't understand your question...

If you want to redirect every request to a subfolder:

RewriteRule ^(.*)$ shop/$1 [L,QSA]

http://www.example.com/* -> wwwroot/store/*

If you want to redirect to a subfolder which has the domain name

RewriteCond %{HTTP_HOST} ([^\.]+\.[^\.]+)$
RewriteRule ^(.*)$ %1/$1 [L,QSA]

http://www.example.com/* -> wwwroot/example.com/*

Try this simple solution to convert file to base64 string

String base64String = imageFileToByte(file);

public String imageFileToByte(File file){

    Bitmap bm = BitmapFactory.decodeFile(file.getAbsolutePath());
    ByteArrayOutputStream baos = new ByteArrayOutputStream();
    bm.compress(Bitmap.CompressFormat.JPEG, 100, baos); //bm is the bitmap object
    byte[] b = baos.toByteArray();
    return Base64.encodeToString(b, Base64.DEFAULT);
}

We can create a [debounce] directive which overwrites ngModel's default viewToModelUpdate function with an empty one.

Directive Code

@Directive({ selector: '[debounce]' })
export class MyDebounce implements OnInit {
    @Input() delay: number = 300;

    constructor(private elementRef: ElementRef, private model: NgModel) {
    }

    ngOnInit(): void {
        const eventStream = Observable.fromEvent(this.elementRef.nativeElement, 'keyup')
            .map(() => {
                return this.model.value;
            })
            .debounceTime(this.delay);

        this.model.viewToModelUpdate = () => {};

        eventStream.subscribe(input => {
            this.model.viewModel = input;
            this.model.update.emit(input);
        });
    }
}

How to use it

<div class="ui input">
  <input debounce [delay]=500 [(ngModel)]="myData" type="text">
</div>

I had the same problem. mysql -u root -p worked for me. It later asks you for a password. You should then enter the password that you had set for mysql. The default password could be password, if you did not set one. More info here.

For the newer versions of Apache pdfbox. Here is the example from the original source

/*
 * Licensed to the Apache Software Foundation (ASF) under one or more
 * contributor license agreements.  See the NOTICE file distributed with
 * this work for additional information regarding copyright ownership.
 * The ASF licenses this file to You under the Apache License, Version 2.0
 * (the "License"); you may not use this file except in compliance with
 * the License.  You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
package org.apache.pdfbox.examples.util;

import java.io.File;
import java.io.IOException;
import org.apache.pdfbox.pdmodel.PDDocument;
import org.apache.pdfbox.pdmodel.encryption.AccessPermission;
import org.apache.pdfbox.text.PDFTextStripper;

/**
 * This is a simple text extraction example to get started. For more advance usage, see the
 * ExtractTextByArea and the DrawPrintTextLocations examples in this subproject, as well as the
 * ExtractText tool in the tools subproject.
 *
 * @author Tilman Hausherr
 */
public class ExtractTextSimple
{
    private ExtractTextSimple()
    {
        // example class should not be instantiated
    }

    /**
     * This will print the documents text page by page.
     *
     * @param args The command line arguments.
     *
     * @throws IOException If there is an error parsing or extracting the document.
     */
    public static void main(String[] args) throws IOException
    {
        if (args.length != 1)
        {
            usage();
        }

        try (PDDocument document = PDDocument.load(new File(args[0])))
        {
            AccessPermission ap = document.getCurrentAccessPermission();
            if (!ap.canExtractContent())
            {
                throw new IOException("You do not have permission to extract text");
            }

            PDFTextStripper stripper = new PDFTextStripper();

            // This example uses sorting, but in some cases it is more useful to switch it off,
            // e.g. in some files with columns where the PDF content stream respects the
            // column order.
            stripper.setSortByPosition(true);

            for (int p = 1; p <= document.getNumberOfPages(); ++p)
            {
                // Set the page interval to extract. If you don't, then all pages would be extracted.
                stripper.setStartPage(p);
                stripper.setEndPage(p);

                // let the magic happen
                String text = stripper.getText(document);

                // do some nice output with a header
                String pageStr = String.format("page %d:", p);
                System.out.println(pageStr);
                for (int i = 0; i < pageStr.length(); ++i)
                {
                    System.out.print("-");
                }
                System.out.println();
                System.out.println(text.trim());
                System.out.println();

                // If the extracted text is empty or gibberish, please try extracting text
                // with Adobe Reader first before asking for help. Also read the FAQ
                // on the website: 
                // https://pdfbox.apache.org/2.0/faq.html#text-extraction
            }
        }
    }

    /**
     * This will print the usage for this document.
     */
    private static void usage()
    {
        System.err.println("Usage: java " + ExtractTextSimple.class.getName() + " <input-pdf>");
        System.exit(-1);
    }
}

When we use multiple and (where) condition with last (where + or where) the where condition fails most of the time. for that we can use the nested where function with parameters passing in that.

$feedsql = DB::table('feeds as t1')
                   ->leftjoin('groups as t2', 't1.groups_id', '=', 't2.id')
                    ->where('t2.status', 1)
                    ->whereRaw("t1.published_on <= NOW()") 
                    >whereIn('t1.groupid', $group_ids)
                   ->where(function($q)use ($userid) {
                            $q->where('t2.contact_users_id', $userid)
                            ->orWhere('t1.users_id', $userid);
                     })
                  ->orderBy('t1.published_on', 'desc')->get();

The above query validate all where condition then finally checks where t2.status=1 and (where t2.contact_users_id='$userid' or where t1.users_id='$userid')

Let's say your image is a 16x16 .png icon called icon.png Use the power of CSS!

CSS:

input#image-button{
    background: #ccc url('icon.png') no-repeat top left;
    padding-left: 16px;
    height: 16px;
}

HTML:

<input type="submit" id="image-button" value="Text"></input>

This will put the image to the left of the text.

For the original see doublep answer:

Foo[] a = x.toArray(new Foo[x.size()]);

As for the update:

int i = 0;
Bar[] bars = new Bar[fooCollection.size()];
for( Foo foo : fooCollection ) { // where fooCollection is Collection<Foo>
    bars[i++] = new Bar(foo);
}    

$ lsof | tree MyFold

As shown in the image attached:

This one.

android:theme="@style/android:Theme.NoTitleBar"

require 5.013002; # or better:    use Syntax::Construct qw(/r);
print "bla: ", $myvar =~ s/a/b/r, "\n";

See perl5132delta:

The substitution operator now supports a /r option that copies the input variable, carries out the substitution on the copy and returns the result. The original remains unmodified.

my $old = 'cat';
my $new = $old =~ s/cat/dog/r;
# $old is 'cat' and $new is 'dog'

The Replace string function will do that.

Option 1

localhost/web is equal to localhost:80/web OR to 127.0.0.1:80/web

Option 2

localhost:8080/web is equal to localhost:8080/web OR to 127.0.0.1:8080/web

Add type="text/babel" to the script that includes the .jsx file and add this: <script src="https://npmcdn.com/[email protected]/browser.min.js"></script>

Hi You need to change the Button properties from private to public. You can change Under Button >> properties >> Design >> Modifiers >> "public" Once change the protection error will gone.

Budi

If you are extending from ViewPager, you must also override executeKeyEvent as indicated previously by @araks

@Override
public boolean executeKeyEvent(KeyEvent event)
{
    return isPagingEnabled ? super.executeKeyEvent(event) : false;
}

Because some devices like the Galaxy Tab 4 10' show these buttons where most devices never show them:

Based on existing responses on this post, this simplify the implementation :)

namespace System
{
    public static class BaseTypesExtensions
    {
        /// <summary>
        /// Just a simple wrapper to simplify the process of splitting a string using another string as a separator
        /// </summary>
        /// <param name="s"></param>
        /// <param name="pattern"></param>
        /// <returns></returns>
        public static string[] Split(this string s, string separator)
        {
            return s.Split(new string[] { separator }, StringSplitOptions.None);
        }


    }
}

Java Script to find IP

To get the IP Address I am making a JSON call to the Free Web Service. like

[jsonip.com/json, ipinfo.io/json, www.telize.com/geoip, ip-api.com/json, api.hostip.info/get_json.php]

and I am passing the name of the callback function which will be called on completion of the request.

<script type="text/javascript">
    window.onload = function () {
    var webService = "http://www.telize.com/geoip";
        var script = document.createElement("script");
        script.type = "text/javascript";
        script.src = webService+"?callback=MyIP";
        document.getElementsByTagName("head")[0].appendChild(script);
    };
    function MyIP(response) {
        document.getElementById("ipaddress").innerHTML = "Your IP Address is " + response.ip;
    }
</script>
<body>
    <form>
        <span id = "ipaddress"></span>
    </form>
</body>

for xml response code

WebRTC which doesn't require server support.

MailMessage mm = new MailMessage(txtEmail.Text, txtTo.Text);
mm.Subject = txtSubject.Text;
mm.Body = txtBody.Text;
if (fuAttachment.HasFile)//file upload select or not
{
    string FileName = Path.GetFileName(fuAttachment.PostedFile.FileName);
    mm.Attachments.Add(new Attachment(fuAttachment.PostedFile.InputStream, FileName));
}
mm.IsBodyHtml = false;
SmtpClient smtp = new SmtpClient();
smtp.Host = "smtp.gmail.com";
smtp.EnableSsl = true;
NetworkCredential NetworkCred = new NetworkCredential(txtEmail.Text, txtPassword.Text);
smtp.UseDefaultCredentials = true;
smtp.Credentials = NetworkCred;
smtp.Port = 587;
smtp.Send(mm);
Response.write("Send Mail");

View Video: https://www.youtube.com/watch?v=bUUNv-19QAI

You can try this: git rm -rf <directory_name>

It will force delete the directory.

def _col_seq_set(df, col_list, seq_list):
    ''' set dataframe 'df' col_list's sequence by seq_list '''
    col_not_in_col_list = [x for x in list(df.columns) if x not in col_list]
    for i in range(len(col_list)):
        col_not_in_col_list.insert(seq_list[i], col_list[i])

    return df[col_not_in_col_list]
DataFrame.col_seq_set = _col_seq_set

Another alternative is;

sudo iptables -A INPUT -p tcp --dport 8000 -s ! 1.2.3.4 -j DROP

I had similar issue that 3 bridged virtualmachine just need access eachother with different combination, so I have tested this command and it works well.

Edit**

According to Fernando comment and this link exclamation mark (!) will be placed before than -s parameter:

sudo iptables -A INPUT -p tcp --dport 8000 ! -s 1.2.3.4 -j DROP

If you're just looking for a dark color scheme for IntelliJ IDEA, this is the first link I get in a Google search:

Dark Pastels theme for IntelliJ IDEA

Of course, you can tweak either of these two schemes to your satisfaction. Don't feel like you have to stick to the fonts and the colors that the original authors have chosen. We programmers don't get nearly enough change to try our hand at interior decorating to pass up this opportunity.

Is there any reason these won't work in the version you have? As best I can tell, you can simply import any theme that you want.

There is a distinct lack of discussion on backwards and forwards compatibility that is built in to PHP's password functions. Notably:

1. Backwards Compatibility: The password functions are essentially a well-written wrapper around crypt(), and are inherently backwards-compatible with crypt()-format hashes, even if they use obsolete and/or insecure hash algorithms.
2. Forwards Compatibilty: Inserting password_needs_rehash() and a bit of logic into your authentication workflow can keep you your hashes up to date with current and future algorithms with potentially zero future changes to the workflow. Note: Any string that does not match the specified algorithm will be flagged for needing a rehash, including non-crypt-compatible hashes.

Eg:

class FakeDB {
    public function __call($name, $args) {
        printf("%s::%s(%s)\n", __CLASS__, $name, json_encode($args));
        return $this;
    }
}

class MyAuth {
    protected $dbh;
    protected $fakeUsers = [
        // old crypt-md5 format
        1 => ['password' => '$1$AVbfJOzY$oIHHCHlD76Aw1xmjfTpm5.'],
        // old salted md5 format
        2 => ['password' => '3858f62230ac3c915f300c664312c63f', 'salt' => 'bar'],
        // current bcrypt format
        3 => ['password' => '$2y$10$3eUn9Rnf04DR.aj8R3WbHuBO9EdoceH9uKf6vMiD7tz766rMNOyTO']
    ];

    public function __construct($dbh) {
        $this->dbh = $dbh;
    }

    protected function getuser($id) {
        // just pretend these are coming from the DB
        return $this->fakeUsers[$id];
    }

    public function authUser($id, $password) {
        $userInfo = $this->getUser($id);

        // Do you have old, turbo-legacy, non-crypt hashes?
        if( strpos( $userInfo['password'], '$' ) !== 0 ) {
            printf("%s::legacy_hash\n", __METHOD__);
            $res = $userInfo['password'] === md5($password . $userInfo['salt']);
        } else {
            printf("%s::password_verify\n", __METHOD__);
            $res = password_verify($password, $userInfo['password']);
        }

        // once we've passed validation we can check if the hash needs updating.
        if( $res && password_needs_rehash($userInfo['password'], PASSWORD_DEFAULT) ) {
            printf("%s::rehash\n", __METHOD__);
            $stmt = $this->dbh->prepare('UPDATE users SET pass = ? WHERE user_id = ?');
            $stmt->execute([password_hash($password, PASSWORD_DEFAULT), $id]);
        }

        return $res;
    }
}

$auth = new MyAuth(new FakeDB());

for( $i=1; $i<=3; $i++) {
    var_dump($auth->authuser($i, 'foo'));
    echo PHP_EOL;
}

Output:

MyAuth::authUser::password_verify
MyAuth::authUser::rehash
FakeDB::prepare(["UPDATE users SET pass = ? WHERE user_id = ?"])
FakeDB::execute([["$2y$10$zNjPwqQX\/RxjHiwkeUEzwOpkucNw49yN4jjiRY70viZpAx5x69kv.",1]])
bool(true)

MyAuth::authUser::legacy_hash
MyAuth::authUser::rehash
FakeDB::prepare(["UPDATE users SET pass = ? WHERE user_id = ?"])
FakeDB::execute([["$2y$10$VRTu4pgIkGUvilTDRTXYeOQSEYqe2GjsPoWvDUeYdV2x\/\/StjZYHu",2]])
bool(true)

MyAuth::authUser::password_verify
bool(true)

As a final note, given that you can only re-hash a user's password on login you should consider "sunsetting" insecure legacy hashes to protect your users. By this I mean that after a certain grace period you remove all insecure [eg: bare MD5/SHA/otherwise weak] hashes and have your users rely on your application's password reset mechanisms.

I struggled with this issue for a long time... My solution was to modify the php.ini file, in the folder that contained the php script. This was important, as modifying the php.ini at the root did not resolve the problem (I have a php.ini in each folder for granular control). The relevant entries in my php.ini looked like this.... (the output_buffering is not likely needed for this issue)

output_buffering = On 
upload_max_filesize = 20M 
post_max_size = 21M

This should work for you

//Retrieve Minimum Date
var MinDate = (from d in dataRows select d.Date).Min();

//Retrieve Maximum Date
var MaxDate = (from d in dataRows select d.Date).Max(); 

(From here)

Your config file seems correct. Then, you have to register your Log4net config file to application. So you can use below code:

var logRepo = LogManager.GetRepository(Assembly.GetEntryAssembly());
XmlConfigurator.Configure(logRepo, new FileInfo("log4net.config"));

After registering process, you can call below definition to call logger:

private static readonly ILog log = LogManager.GetLogger(MethodBase.GetCurrentMethod().DeclaringType);

log.Error("Sample log");

Please correct me if I'm wrong, but when Angular 2.0 is released I do not believe$rootScope will be around. My conjecture is based on the fact that $scope is being removed as well. Obviously controllers, will still exist, just not in the ng-controller fashion.Think of injecting controllers into directives instead. As the release comes imminent, it will be best to use services as global variables if you want an easier time to switch from verison 1.X to 2.0.

&& == logical AND

& = bitwise AND

@[Denys Séguret] has posted correct. But In my case I need new seed everytime hence below code;

Incase you need quick functions. I use like this.

func RandInt(min, max int) int {
    r := rand.New(rand.NewSource(time.Now().UnixNano()))
    return r.Intn(max-min) + min
}

func RandFloat(min, max float64) float64 {
    r := rand.New(rand.NewSource(time.Now().UnixNano()))
    return min + r.Float64()*(max-min)
}

source

I fixed that error by adding this conflict code

<script type="text/javascript">
 jQuery.noConflict(); 
</script>

after my jQuery and js files and get the file was the error (found by the console of browser) and replace all the '$' by jQuery following this on all error js files in my Magento website. It's working for me good. Find more details on my blog here

1. A static method can NOT access a Non-static method or variable.

2. public static void main(String[] args) is a static method, so can NOT access the Non-static public static int fxn(int y) method.

3. Try it this way...

   static int fxn(int y)

   public class Two {
   
   
       public static void main(String[] args) {
           int x = 0;
   
           System.out.println("x = " + x);
           x = fxn(x);
           System.out.println("x = " + x);
       }
   
       static int fxn(int y) {
           y = 5;
           return y;
       }
   

   }

That can be done with:

foo(*values)

I used a hybrid approach to get around the newline thing by using tr to replace newlines with tabs, then replacing tabs with whatever I want. In this case, "
" since I'm trying to generate HTML breaks.

echo -e "a\nb\nc\n" |tr '\n' '\t' | sed 's/\t/ <br> /g'`

With itertools you will obtain another generator object so in most of the cases you will need another step the take the first N elements (N). There are at least two simpler solutions (a little bit less efficient in terms of performance but very handy) to get the elements ready to use from a generator:

Using list comprehension:

first_N_element=[generator.next() for i in range(N)]

Otherwise:

first_N_element=list(generator)[:N]

Where N is the number of elements you want to take (e.g. N=5 for the first five elements).

This issue may be due to the flags of chrome browser. Reset it, it worked for me. chrome://flags Right corner 'Reset all to defaults' button.

You can save it as .txt and change it manually using a mouse click and your keyboard. OR, when saving the file:

• choose All types(*.*) in the Save as type field.
• type filename.json in File name field

I always use this code below for more readable

$('table').append([
'<tr>',
    '<td>My Item 1</td>',
    '<td>My Item 2</td>',
    '<td>My Item 3</td>',
    '<td>My Item 4</td>',
'</tr>'
].join(''));

or if it have tbody

$('table').find('tbody').append([
'<tr>',
    '<td>My Item 1</td>',
    '<td>My Item 2</td>',
    '<td>My Item 3</td>',
    '<td>My Item 4</td>',
'</tr>'
].join(''));

This should kill all background processes:

jobs -p | xargs kill -9

Convert the array into a hash. Then look for the key.

array = ['a', 'b', 'c']
hash = Hash[array.map.with_index.to_a]    # => {"a"=>0, "b"=>1, "c"=>2}
hash['b'] # => 1

First you need to determine the revision ID of the last known commit. You can use HEAD^ or HEAD~{1} if you know you need to reverse exactly one commit.

git reset --hard <revision_id_of_last_known_good_commit>
git push --force

post your complete string. Though, my guess is there is an apostrophe (') character in your string. replace it with (\') and it will fix the issue. for example,

//strings.xml
<string name="terms">
Hey Mr. Android, are you stuck?  Here, I\'ll clear a path for you.  
</string>

Ref:

http://www.mrexcel.com/forum/showthread.php?t=195353

https://code.google.com/archive/p/replicaisland/issues/48

Use a rectangle to surround each player and enemy, the height and width of the rectangles should correspond to the object you're surrounding, imagine it being in a box only big enough to fit it.

Now, you move these rectangles the same as you do the objects, so they have a 'bounding box'

I'm not sure if Java has this, but it might have a method on the rectangle object called .intersects() so you'd do if(rectangle1.intersectS(rectangle2) to check to see if an object has collided with another.

Otherwise you can get the x and y co-ordinates of the boxes and using the height/width of them detect whether they've intersected yourself.

Anyway, you can use that to either do an event on intersection (make one explode, or whatever) or prevent the movement from being drawn. (revert to previous co-ordinates)

edit: here we go

boolean

intersects(Rectangle r) Determines whether or not this Rectangle and the specified Rectangle intersect.

So I would do (and don't paste this code, it most likely won't work, not done java for a long time and I didn't do graphics when I did use it.)

Rectangle rect1 = new Rectangle(player.x, player.y, player.width, player.height);

Rectangle rect2 = new Rectangle(enemy.x, enemy.y, enemy.width, enemy.height);

//detects when the two rectangles hit
if(rect1.intersects(rect2))
{

System.out.println("game over, g");
}

obviously you'd need to fit that in somewhere.

Here is another way to iterate over the properties:

Enumeration eProps = properties.propertyNames();
while (eProps.hasMoreElements()) { 
    String key = (String) eProps.nextElement(); 
    String value = properties.getProperty(key); 
    System.out.println(key + " => " + value); 
}

I was moving a folder up one level and into another folder. My mistake was doing the move from within the parent folder.

Bad example:

pwd -> C:\Repo\ParentDir\
svn move ./DirtoCopy ../AnotherDir

SVN needs to update the parent directory with the deleted folders info.
You have to do it from the common root of the source and destination folders or use full paths.

Good example:

svn move C:\Repo\ParentDir\DirtoCopy C:\Repo\NewLocation

Talking in terms of performance "2" (with JMH):

class A{}
class B extends A{}

public class InstanceOfTest {

public static final Object a = new A();
public static final Object b = new B();

@Benchmark
@BenchmarkMode(Mode.AverageTime)
@OutputTimeUnit(TimeUnit.NANOSECONDS)
public boolean testInstanceOf()
{
    return b instanceof A;
}

@Benchmark
@BenchmarkMode(Mode.AverageTime)
@OutputTimeUnit(TimeUnit.NANOSECONDS)
public boolean testIsInstance()
{
    return A.class.isInstance(b);
}

@Benchmark
@BenchmarkMode(Mode.AverageTime)
@OutputTimeUnit(TimeUnit.NANOSECONDS)
public boolean testIsAssignableFrom()
{
    return A.class.isAssignableFrom(b.getClass());
}

public static void main(String[] args) throws RunnerException {
    Options opt = new OptionsBuilder()
            .include(InstanceOfTest.class.getSimpleName())
            .warmupIterations(5)
            .measurementIterations(5)
            .forks(1)
            .build();

    new Runner(opt).run();
}
}

It gives:

Benchmark                            Mode  Cnt  Score   Error  Units
InstanceOfTest.testInstanceOf        avgt    5  1,972 ? 0,002  ns/op
InstanceOfTest.testIsAssignableFrom  avgt    5  1,991 ? 0,004  ns/op
InstanceOfTest.testIsInstance        avgt    5  1,972 ? 0,003  ns/op

So that we can conclude: instanceof as fast as isInstance() and isAssignableFrom() not far away (+0.9% executon time). So no real difference whatever you choose

I had a similar "library not found" issue. However it was because I accidentally was using the .xcodeproj file instead of the .xcworkspace file.

We had this issue as well. I cannot remember exactly what fixed as we are now functioning as expected... try grouping the controls. I think that was our resolution.

This is an example of forEach usage:

let arr = [];

this.myArray.forEach((value, index) => {
    arr.push(value);
    console.log(value);
    console.log(index);
});

In this case, "myArray" is an array on my data.

You can also loop through an array using filter, but this one should be used if you want to get a new list with filtered elements of your array.

Something like this:

const newArray = this.myArray.filter((value, index) => {
    console.log(value);
    console.log(index);
    if (value > 5) return true;
});

and the same can be written as:

const newArray = this.myArray.filter((value, index) => value > 5);

Both filter and forEach are javascript methods and will work just fine with VueJs. Also, it might be interesting taking a look at this:

https://developer.mozilla.org/pt-BR/docs/Web/JavaScript/Reference/Global_Objects/Array/forEach

The job of interpreting the pipe symbol as an instruction to run multiple processes and pipe the output of one process into the input of another process is the responsibility of the shell (/bin/sh or equivalent).

In your example you can either choose to use your top level shell to perform the piping like so:

find -name 'file_*' -follow -type f -exec zcat {} \; | agrep -dEOE 'grep'

In terms of efficiency this results costs one invocation of find, numerous invocations of zcat, and one invocation of agrep.

This would result in only a single agrep process being spawned which would process all the output produced by numerous invocations of zcat.

If you for some reason would like to invoke agrep multiple times, you can do:

find . -name 'file_*' -follow -type f \
    -printf "zcat %p | agrep -dEOE 'grep'\n" | sh

This constructs a list of commands using pipes to execute, then sends these to a new shell to actually be executed. (Omitting the final "| sh" is a nice way to debug or perform dry runs of command lines like this.)

In terms of efficiency this results costs one invocation of find, one invocation of sh, numerous invocations of zcat and numerous invocations of agrep.

The most efficient solution in terms of number of command invocations is the suggestion from Paul Tomblin:

find . -name "file_*" -follow -type f -print0 | xargs -0 zcat | agrep -dEOE 'grep'

... which costs one invocation of find, one invocation of xargs, a few invocations of zcat and one invocation of agrep.

That's definitely possible. We'll take a general case with Apache here.

Let's say you're a big Symfony2 fan and you would like to access your symfony website at http://symfony.local/ from 4 different computers (the main one hosting your website, as well as a Mac, a Windows and a Linux distro connected (wireless or not) to the main computer.

General Sketch:

1 Set up a virtual host:

You first need to set up a virtual host in your apache httpd-vhosts.conf file. On XAMP, you can find this file here: C:\xampp\apache\conf\extra\httpd-vhosts.conf. On MAMP, you can find this file here: Applications/MAMP/conf/apache/extra/httpd-vhosts.conf. This step prepares the Web server on your computer for handling symfony.local requests. You need to provide the name of the Virtual Host as well as the root/main folder of your website. To do this, add the following line at the end of that file. You need to change the DocumentRoot to wherever your main folder is. Here I have taken /Applications/MAMP/htdocs/Symfony/ as the root of my website.

<VirtualHost *:80>
    DocumentRoot "/Applications/MAMP/htdocs/Symfony/"
    ServerName symfony.local
</VirtualHost>

2 Configure your hosts file:

For the client (your browser in that case) to understand what symfony.local really means, you need to edit the hosts file on your computer. Everytime you type an URL in your browser, your computer tries to understand what it means! symfony.local doesn't mean anything for a computer. So it will try to resolve the name symfony.local to an IP address. It will do this by first looking into the hosts file on your computer to see if he can match an IP address to what you typed in the address bar. If it can't, then it will ask DNS servers. The trick here is to append the following to your hosts file.

• On MAC, this file is in /private/etc/hosts;
• On LINUX, this file is in /etc/hosts;
• On WINDOWS, this file is in \Windows\system32\private\etc\hosts;
• On WINDOWS 7, this file is in \Windows\system32\drivers\etc\hosts;
• On WINDOWS 10, this file is in \Windows\system32\drivers\etc\hosts;

Hosts file

##
# Host Database
# localhost is used to configure the loopback interface
##
#...
127.0.0.1           symfony.local

From now on, everytime you type symfony.local on this computer, your computer will use the loopback interface to connect to symfony.local. It will understand that you want to work on localhost (127.0.0.1).

3 Access symfony.local from an other computer:

We finally arrive to your main question which is:

How can I now access my website through an other computer?

Well this is now easy! We just need to tell the other computers how they could find symfony.local! How do we do this?

3a Get the IP address of the computer hosting the website:

We first need to know the IP address on the computer that hosts the website (the one we've been working on since the very beginning). In the terminal, on MAC and LINUX type ifconfig |grep inet, on WINDOWS type ipconfig. Let's assume the IP address of this computer is 192.168.1.5.

3b Edit the hosts file on the computer you are trying to access the website from.:

Again, on MAC, this file is in /private/etc/hosts; on LINUX, in /etc/hosts; and on WINDOWS, in \Windows\system32\private\etc\hosts (if you're using WINDOWS 7, this file is in \Windows\system32\drivers\etc\hosts).. The trick is now to use the IP address of the computer we are trying to access/talk to:

##
# Host Database
# localhost is used to configure the loopback interface
##
#...
192.168.1.5         symfony.local

4 Finally enjoy the results in your browser

You can now go into your browser and type http://symfony.local to beautifully see your website on different computers! Note that you can apply the same strategy if you are a OSX user to test your website on Internet Explorer via Virtual Box (if you don't want to use a Windows computer). This is beautifully explained in Crafting Your Windows / IE Test Environment on OSX.

You can also access your localhost from mobile devices

You might wonder how to access your localhost website from a mobile device. In some cases, you won't be able to modify the hosts file (iPhone, iPad...) on your device (jailbreaking excluded).

Well, the solution then is to install a proxy server on the machine hosting the website and connect to that proxy from your iphone. It's actually very well explained in the following posts and is not that long to set up:

On a Mac, I would recommend: Testing a Mac OS X web site using a local hostname on a mobile device: Using SquidMan as a proxy. It's a 100% free solution. Some people can also use Charles as a proxy server but it's 50$.

On Linux, you can adapt the Mac OS way above by using Squid as a proxy server.

On Windows, you can do that using Fiddler. The solution is described in the following post: Monitoring iPhone traffic with Fiddler

Edit 23/11/2017: Hey I don't want to modify my Hosts file

@Dre. Any possible way to access the website from another computer by not editing the host file manually? let's say I have 100 computers wanted to access the website

This is an interesting question, and as it is related to the OP question, let me help.

You would have to do a change on your network so that every machine knows where your website is hosted. Most everyday routers don't do that so you would have to run your own DNS Server on your network.

Let's pretend you have a router (192.168.1.1). This router has a DHCP server and allocates IP addresses to 100 machines on the network.

Now, let's say you have, same as above, on the same network, a machine at 192.168.1.5 which has your website. We will call that machine pompei.

$ echo $HOSTNAME
pompei

Same as before, that machine pompei at 192.168.1.5 runs an HTTP Server which serves your website symfony.local.

For every machine to know that symfony.local is hosted on pompei we will now need a custom DNS Server on the network which knows where symfony.local is hosted. Devices on the network will then be able to resolve domain names served by pompei internally.

3 simple steps.

Step 1: DNS Server

Set-up a DNS Server on your network. Let's have it on pompei for convenience and use something like dnsmasq.

Dnsmasq provides Domain Name System (DNS) forwarder, ....

We want pompei to run DNSmasq to handle DNS requests Hey, pompei, where is symfony.local and respond Hey, sure think, it is on 192.168.1.5 but don't take my word for it.

Go ahead install dnsmasq, dnsmasq configuration file is typically in /etc/dnsmasq.conf depending on your environment.

I personally use no-resolv and google servers server=8.8.8.8 server=8.8.8.4.

*Note:* ALWAYS restart DNSmasq if modifying /etc/hosts file as no changes will take effect otherwise.

Step 2: Firewall

To work, pompei needs to allow incoming and outgoing 'domain' packets, which are going from and to port 53. Of course! These are DNS packets and if pompei does not allow them, there is no way for your DNS server to be reached at all. Go ahead and open that port 53. On linux, you would classically use iptables for this.

Sharing what I came up with but you will very likely have to dive into your firewall and understand everything well.

#
# Allow outbound DNS port 53
#
 iptables -A INPUT -p tcp --dport 53 -j ACCEPT
 iptables -A INPUT -p udp --dport 53 -j ACCEPT

 iptables -A OUTPUT -p tcp --dport 53 -j ACCEPT
 iptables -A OUTPUT -p udp --dport 53 -j ACCEPT

 iptables -A INPUT -p udp --sport 53 -j ACCEPT
 iptables -A INPUT -p tcp --sport 53 -j ACCEPT

 iptables -A OUTPUT -p tcp --sport 53 -j ACCEPT
 iptables -A OUTPUT -p udp --sport 53 -j ACCEPT

Step 3: Router

Tell your router that your dns server is on 192.168.1.5 now. Most of the time, you can just login into your router and change this manually very easily.

That's it, When you are on a machine and ask for symfony.local, it will ask your DNS Server where symfony.local is hosted, and as soon as it has received its answer from the DNS server, will then send the proper HTTP request to pompei on 192.168.1.5.

I let you play with this and enjoy the ride. These 2 steps are the main guidelines, so you will have to debug and spend a few hours if this is the first time you do it. Let's say this is a bit more advanced networking, there are primary DNS Server, secondary DNS Servers, etc.. Good luck!

Check your build types of each project under project properties - I bet one or the other will be set to build against .NET XX - Client Profile.

With inconsistent versions, specifically with one being Client Profile and the other not, then it works at design time but fails at compile time. A real gotcha.

There is something funny going on in Visual Studio 2010 for me, which keeps setting projects seemingly randomly to Client Profile, sometimes when I create a project, and sometimes a few days later. Probably some keyboard shortcut I'm accidentally hitting...

The differences are listed in the Javadoc for ListIterator

You can

• iterate backwards
• obtain the iterator at any point.
• add a new value at any point.
• set a new value at that point.

1)In Manifest file mention your activity name and action for it and also category . 2)In your Activity mention your starting contentview and mention your view id's in the activity.

You need convert to number type:

(+Low).toFixed(2)

If you want to save the image and you know its URL you can do this:

try(InputStream in = new URL("http://example.com/image.jpg").openStream()){
    Files.copy(in, Paths.get("C:/File/To/Save/To/image.jpg"));
}

You will also need to handle the IOExceptions which may be thrown.

Try =index(ARRAY, ROW, COLUMN)

where: Array: select the whole sheet Row, Column: Your row and column references

That should be easier to understand to those looking at the formula.

The opposite of :hover appears to be :link.

(edit: not technically an opposite because there are 4 selectors :link, :visited, :hover and :active. Five if you include :focus.)

For example when defining a rule .button:hover{ text-decoration:none } to remove the underline on a button, the underline shows up when you roll off the button in some browsers. I've fixed this with .button:hover, .button:link{ text-decoration:none }

This of course only works for elements that are actually links (have href attribute)

Since header files from some C libraries use the keyword, the C++ language will have to do something about it.. at the minimum, ignoring the keyword, so we don't have to #define the keyword to a blank macro to suppress the keyword.

I got this to work to scroll to the bottom of a ScrollView (with a TextView inside):

(I put this on a method that updates the TextView)

final ScrollView myScrollView = (ScrollView) findViewById(R.id.myScroller);
    myScrollView.post(new Runnable() {
    public void run() {
        myScrollView.fullScroll(View.FOCUS_DOWN);
    }
});

To remove any blank trailing spaces use this:

\n|^\s+\n

I tested in the Atom and Xcode editors.

There's a oneliner for this one.

You can simply run,

docker run -v /1.0-SNAPSHOT/my-app-1.0-SNAPSHOT.war:/usr/local/tomcat/webapps/myapp.war -it -p 8080:8080 tomcat

This will copy the war file to webapps directory and get your app running in no time.

You get this warning message when the servlet api jar file has already been loaded in the container and you try to load it once again from lib directory.

The Servlet specs say you are not allowed to have servlet.jar in your webapps lib directory.

• Get rid of the warning message by simply removing servlet.jar from your lib directory.
• If you don't find the jar in the lib directory scan for your build path and remove the jar.

C:\Program Files\Apache Software Foundation\Tomcat 7.0\webapps\project\WEB-INF\lib

If you are running a maven project, change the javax.servlet-api dependency to scope provided in you pom.xml since the container already provided the servlet jar in itself.

In case there is a possibility for dataloss EF does not complete the update-database command since AutomaticMigrationDataLossAllowed = false by default, and roolbacks the action unless you run it with the -force parameter.

Update-Database –TargetMigration:"Your migration name" -force

or

Update-Database –TargetMigration:Your_Migration_Index -force

You can't, and you shouldn't. That's what polymorphism is for, so that each object has its own way of doing some "base" things.

If you're not wanting to save changes set savechanges to false

    Sub CloseBook2()
        ActiveWorkbook.Close savechanges:=False
    End Sub

for more examples, http://support.microsoft.com/kb/213428 and i believe in the past I've just used

    ActiveWorkbook.Close False

You could create Util class:

public final class CollectionHelpers {
    public static <T> boolean addNullSafe(List<T> list, T element) {
        if (list == null || element == null) {
            return false;
        }

        return list.add(element);
    }
}

And then use it:

Element element = getElementFromSomeWhere(someParameter);
List<Element> arrayList = new ArrayList<>();
CollectionHelpers.addNullSafe(list, element);

This is caused by the limited support for the MP4 format within the video tag in Firefox. Support was not added until Firefox 21, and it is still limited to Windows 7 and above. The main reason for the limited support revolves around the royalty fee attached to the mp4 format.

Check out Supported media formats and Media formats supported by the audio and video elements directly from the Mozilla crew or the following blog post for more information:

http://pauljacobson.org/2010/01/22/2010122firefox-and-its-limited-html-5-video-support-html/

This code works to catch the user closing the console window:

using System;
using System.Runtime.InteropServices;

class Program {
    static void Main(string[] args) {
        handler = new ConsoleEventDelegate(ConsoleEventCallback);
        SetConsoleCtrlHandler(handler, true);
        Console.ReadLine();
    }

    static bool ConsoleEventCallback(int eventType) {
        if (eventType == 2) {
            Console.WriteLine("Console window closing, death imminent");
        }
        return false;
    }
    static ConsoleEventDelegate handler;   // Keeps it from getting garbage collected
    // Pinvoke
    private delegate bool ConsoleEventDelegate(int eventType);
    [DllImport("kernel32.dll", SetLastError = true)]
    private static extern bool SetConsoleCtrlHandler(ConsoleEventDelegate callback, bool add);

}

Beware of the restrictions. You have to respond quickly to this notification, you've got 5 seconds to complete the task. Take longer and Windows will kill your code unceremoniously. And your method is called asynchronously on a worker thread, the state of the program is entirely unpredictable so locking is likely to be required. Do make absolutely sure that an abort cannot cause trouble. For example, when saving state into a file, do make sure you save to a temporary file first and use File.Replace().

this is my approach from a simple blog:

//Prime Numbers generation in C++
//Using for loops and conditional structures
#include <iostream>
using namespace std;

int main()
{
int a = 2;       //start from 2
long long int b = 1000;     //ends at 1000

for (int i = a; i <= b; i++)
{

 for (int j = 2; j <= i; j++)
 {
    if (!(i%j)&&(i!=j))    //Condition for not prime
        {
            break;
        }

    if (j==i)             //condition for Prime Numbers
        {
              cout << i << endl;

        }
 }
}
}

- See more at: http://www.programmingtunes.com/generation-of-prime-numbers-c/#sthash.YoWHqYcm.dpuf

There are several helpful bits of code for this.

Place your cursor in a merged cell and ask these questions in the Immidiate Window:

Is the activecell a merged cell?

? Activecell.Mergecells
 True

How many cells are merged?

? Activecell.MergeArea.Cells.Count
 2

How many columns are merged?

? Activecell.MergeArea.Columns.Count
 2

How many rows are merged?

? Activecell.MergeArea.Rows.Count
  1

What's the merged range address?

? activecell.MergeArea.Address
  $F$2:$F$3

mod_log_forensic is what you want, but it may not be included/available with your Apache install by default.

Here is how to use it.

LoadModule log_forensic_module /usr/lib64/httpd/modules/mod_log_forensic.so 
<IfModule log_forensic_module> 
ForensicLog /var/log/httpd/forensic_log 
</IfModule> 

You need to use event.stopPropagation()

Live Demo

$('#childDiv').click(function(event){
    event.stopPropagation();
    alert(event.target.id);
});?

event.stopPropagation()

Description: Prevents the event from bubbling up the DOM tree, preventing any parent handlers from being notified of the event.

If you also need to disable the drop-down (not to hide the text) then set the lengthChange option to false

$('#datatable').dataTable( {
  "lengthChange": false
} );

Works for DataTables 1.10+

Read more in the official documentation

I don't understand why some people are suggesting using cross apply or outer apply to convert the xml into a table of values. For me, that just brought back way too much data.

Here's my example of how you'd create an xml object, then turn it into a table.

(I've added spaces in my xml string, just to make it easier to read.)

DECLARE @str nvarchar(2000)

SET @str = ''
SET @str = @str + '<users>'
SET @str = @str + '  <user>'
SET @str = @str + '     <firstName>Mike</firstName>'
SET @str = @str + '     <lastName>Gledhill</lastName>'
SET @str = @str + '     <age>31</age>'
SET @str = @str + '  </user>'
SET @str = @str + '  <user>'
SET @str = @str + '     <firstName>Mark</firstName>'
SET @str = @str + '     <lastName>Stevens</lastName>'
SET @str = @str + '     <age>42</age>'
SET @str = @str + '  </user>'
SET @str = @str + '  <user>'
SET @str = @str + '     <firstName>Sarah</firstName>'
SET @str = @str + '     <lastName>Brown</lastName>'
SET @str = @str + '     <age>23</age>'
SET @str = @str + '  </user>'
SET @str = @str + '</users>'

DECLARE @xml xml
SELECT @xml = CAST(CAST(@str AS VARBINARY(MAX)) AS XML) 

--  Iterate through each of the "users\user" records in our XML
SELECT 
    x.Rec.query('./firstName').value('.', 'nvarchar(2000)') AS 'FirstName',
    x.Rec.query('./lastName').value('.', 'nvarchar(2000)') AS 'LastName',
    x.Rec.query('./age').value('.', 'int') AS 'Age'
FROM @xml.nodes('/users/user') as x(Rec)

And here's the output:

As Tuomas said, your header should be minimal. To be complete I will expand a bit.

I personally use 4 types of files in my C++ projects:

• Public:
• Forwarding header: in case of templates etc, this file get the forwarding declarations that will appear in the header.
• Header: this file includes the forwarding header, if any, and declare everything that I wish to be public (and defines the classes...)
• Private:
• Private header: this file is a header reserved for implementation, it includes the header and declares the helper functions / structures (for Pimpl for example or predicates). Skip if unnecessary.
• Source file: it includes the private header (or header if no private header) and defines everything (non-template...)

Furthermore, I couple this with another rule: Do not define what you can forward declare. Though of course I am reasonable there (using Pimpl everywhere is quite a hassle).

It means that I prefer a forward declaration over an #include directive in my headers whenever I can get away with them.

Finally, I also use a visibility rule: I limit the scopes of my symbols as much as possible so that they do not pollute the outer scopes.

Putting it altogether:

// example_fwd.hpp
// Here necessary to forward declare the template class,
// you don't want people to declare them in case you wish to add
// another template symbol (with a default) later on
class MyClass;
template <class T> class MyClassT;

// example.hpp
#include "project/example_fwd.hpp"

// Those can't really be skipped
#include <string>
#include <vector>

#include "project/pimpl.hpp"

// Those can be forward declared easily
#include "project/foo_fwd.hpp"

namespace project { class Bar; }

namespace project
{
  class MyClass
  {
  public:
    struct Color // Limiting scope of enum
    {
      enum type { Red, Orange, Green };
    };
    typedef Color::type Color_t;

  public:
    MyClass(); // because of pimpl, I need to define the constructor

  private:
    struct Impl;
    pimpl<Impl> mImpl; // I won't describe pimpl here :p
  };

  template <class T> class MyClassT: public MyClass {};
} // namespace project

// example_impl.hpp (not visible to clients)
#include "project/example.hpp"
#include "project/bar.hpp"

template <class T> void check(MyClass<T> const& c) { }

// example.cpp
#include "example_impl.hpp"

// MyClass definition

The lifesaver here is that most of the times the forward header is useless: only necessary in case of typedef or template and so is the implementation header ;)

@K Scott Piel wrote a great answer here, but I want to add one important point.

Note that the stdout stream is usually line-buffered, so to ensure the output is actually printed and not just left sitting in the buffer waiting to be written you must flush the buffer by either ending your printf statement with a \n

Ex:

printf("hello world\n");

or

printf("hello world"); 
printf("\n");

or similar, OR you must call fflush(stdout); after your printf call.

Ex:

printf("hello world"); 
fflush(stdout);

Read more here: Why does printf not flush after the call unless a newline is in the format string?

This is not about the difference between Window.ContentRendered and Window.Loaded but about what how the Window.Loaded event can be used:

I use it to avoid splash screens in all applications which need a long time to come up.

    // initializing my main window
    public MyAppMainWindow()
    {
        InitializeComponent();

        // Set the event
        this.ContentRendered += MyAppMainWindow_ContentRendered;
    }

    private void MyAppMainWindow_ContentRendered(object sender, EventArgs e)
    {
        // ... comes up quick when the controls are loaded and rendered

        // unset the event
        this.ContentRendered -= MyAppMainWindow_ContentRendered;

        // ... make the time comsuming init stuff here
    }

directly from this java oracle tutorial:

When a thread invokes d.wait, it must own the intrinsic lock for d — otherwise an error is thrown. Invoking wait inside a synchronized method is a simple way to acquire the intrinsic lock.

i found that in the deployment assembly, there was the entry:

[persisted container] org.maven.ide.eclipse.maven2_classpath_container

i removed it, and added the maven dependencies entry, and it works fine now.

Just changing window.location in JavaScript is dangerous because the user could still hit the back button and resubmit the post, which could have unexpected results (such as a duplicate purchase). PRG is a much better solution

Use the Post/Redirect/Get (PRG) pattern

To avoid this problem, many web applications use the PRG pattern — instead of returning an HTML page directly, the POST operation returns a redirection command (using the HTTP 303 response code (sometimes 302) together with the HTTP "Location" response header), instructing the browser to load a different page using an HTTP GET request. The result page can then safely be bookmarked or reloaded without unexpected side effects.

Use Math.Round

int d = (int) Math.Round(a, 0);

The best cross-browser solution is

background: #fff;
background: -moz-linear-gradient(#fff, #000);
background: -webkit-linear-gradient(#fff, #000);
background: -o-linear-gradient(#fff, #000);
background: -ms-linear-gradient(#fff, #000);/*For IE10*/
background: linear-gradient(#fff, #000);
filter: progid:DXImageTransform.Microsoft.gradient(GradientType=0,startColorstr='#ffffff', endColorstr='#000000');/*For IE7-8-9*/ 
height: 1%;/*For IE7*/ 

Why not a named anchor?

You also can lead your initial string, which you are going to check for pattern matching, to lower case. And use in your pattern lower case symbols respectively.

This answer provides a sample POSIX shell function and a usage example to complement @jabbie's answer.

is_inside_git_repo() {
    git rev-parse --is-inside-work-tree >/dev/null 2>&1
}

git returns errorlevel 0 if it is inside a git repository, else it returns errorlevel 128. (It also returns true or false if it is inside a git repository.)

Usage example

for repo in *; do
    # skip files
    [ -d "$repo" ] || continue
    # run commands in subshell so each loop starts in the current dir
    (
        cd "$repo"
        # skip plain directories
        is_inside_git_repo || continue
        printf '== %s ==\n' "$repo"
        git remote update --prune 'origin' # example command
        # other commands here
    )
done

This might be useful for refreshing also. But if you want to keep track of position on the page before you click on a same position.. The following code will help.

Also added a data-confirm for prompting the user if they really want to do that..

Note: I'm using jQuery and js-cookie.js to store cookie info.

$(document).ready(function() {
    // make all links with data-confirm prompt the user first.
    $('[data-confirm]').on("click", function (e) {
        e.preventDefault();
        var msg = $(this).data("confirm");
        if(confirm(msg)==true) {
            var url = this.href;
            if(url.length>0) window.location = url;
            return true;
        }
        return false;
    });

    // on certain links save the scroll postion.
    $('.saveScrollPostion').on("click", function (e) {
        e.preventDefault();
        var currentYOffset = window.pageYOffset;  // save current page postion.
        Cookies.set('jumpToScrollPostion', currentYOffset);
        if(!$(this).attr("data-confirm")) {  // if there is no data-confirm on this link then trigger the click. else we have issues.
            var url = this.href;
            window.location = url;
            //$(this).trigger('click');  // continue with click event.
        }
    });

    // check if we should jump to postion.
    if(Cookies.get('jumpToScrollPostion') !== "undefined") {
        var jumpTo = Cookies.get('jumpToScrollPostion');
        window.scrollTo(0, jumpTo);
        Cookies.remove('jumpToScrollPostion');  // and delete cookie so we don't jump again.
    }
});

A example of using it like this.

<a href='gotopage.html' class='saveScrollPostion' data-confirm='Are you sure?'>Goto what the heck</a>

You can try the following steps and code using qrtools:

• Create a qrcode file, if not already existing

  • I used pyqrcode for doing this, which can be installed using pip install pyqrcode

  • And then use the code:

    >>> import pyqrcode
    >>> qr = pyqrcode.create("HORN O.K. PLEASE.")
    >>> qr.png("horn.png", scale=6)
    

• Decode an existing qrcode file using qrtools

  • Install qrtools using sudo apt-get install python-qrtools

  • Now use the following code within your python prompt

    >>> import qrtools
    >>> qr = qrtools.QR()
    >>> qr.decode("horn.png")
    >>> print qr.data
    u'HORN O.K. PLEASE.'
    

Here is the complete code in a single run:

In [2]: import pyqrcode
In [3]: qr = pyqrcode.create("HORN O.K. PLEASE.")
In [4]: qr.png("horn.png", scale=6)
In [5]: import qrtools
In [6]: qr = qrtools.QR()
In [7]: qr.decode("horn.png")
Out[7]: True
In [8]: print qr.data
HORN O.K. PLEASE.

Caveats

• You might need to install PyPNG using pip install pypng for using pyqrcode

• In case you have PIL installed, you might get IOError: decoder zip not available. In that case, try uninstalling and reinstalling PIL using:

  pip uninstall PIL
  pip install PIL
  

• If that doesn't work, try using Pillow instead

  pip uninstall PIL
  pip install pillow
  

Yes the above answers describing the corect way to sort datatable

DataView dv = ft.DefaultView;
dv.Sort = "occr desc";
DataTable sortedDT = dv.ToTable();

But in addition to this, to select particular row in it you can use LINQ and try following

var Temp = MyDataSet.Tables[0].AsEnumerable().Take(1).CopyToDataTable();

You hide Bootstrap modals with:

$('#modal').modal('hide');

Saying $().hide() makes the matched element invisible, but as far as the modal-related code is concerned, it's still there. See the Methods section in the Modals documentation.

If in every li you have only one row of text you can put text indent on li. Like this :

ul {
  list-style: disc;
}
ul li {
   text-indent: 5px;
}

or

ul {
 list-style: disc;
}
ul li {
   text-indent: -5px;
}

Symptom:

Could not upload images to WordPress Media Library.

Cause:

(CentOS) yum update

Error:

2014/10/22 18:08:50 [crit] 23286#0: *5332 open() "/var/lib/nginx/tmp/client_body/0000000003" failed (13: Permission denied), client: 1.2.3.4, server: _, request: "POST /wp-admin/media-new.php HTTP/1.1", host: "example.com", referrer: "http://example/wp-admin/media-new.php"

Solution:

chown -R www-data:www-data /var/lib/nginx

This simplest ways is to add the "checked attribute.

<label for="tag_1">Tag 1</label>
<input type="checkbox" name="tag_1" id="tag_1" value="yes" 
    <?php if($tag_1_saved_value === 'yes') echo 'checked="checked"';?> />

You can use Notification and NotificationManager to display the notification you want. You can then customize the sound you want to play with your notification.

Well using find is the best option here

just simply use like this

$(".class").click(function(){
        $("this").find('.subclass').css("visibility","visible");
})

and if there are many classes with the same name class its always better to give the class name of parent class like this

$(".parent .class").click(function(){
            $("this").find('.subclass').css("visibility","visible");
    })

I was having some trouble using an Indeterminate Progress Dialog with the solution here, after some work and trial and error I got it to work.

First, create the animation you want to use for the Progress Dialog. In my case I used 5 images.

../res/anim/progress_dialog_icon_drawable_animation.xml:

<animation-list xmlns:android="http://schemas.android.com/apk/res/android">
    <item android:drawable="@drawable/icon_progress_dialog_drawable_1" android:duration="150" />
    <item android:drawable="@drawable/icon_progress_dialog_drawable_2" android:duration="150" />
    <item android:drawable="@drawable/icon_progress_dialog_drawable_3" android:duration="150" />
    <item android:drawable="@drawable/icon_progress_dialog_drawable_4" android:duration="150" />
    <item android:drawable="@drawable/icon_progress_dialog_drawable_5" android:duration="150" />
</animation-list>

Where you want to show a ProgressDialog:

dialog = new ProgressDialog(Context.this);
dialog.setIndeterminate(true);
dialog.setIndeterminateDrawable(getResources().getDrawable(R.anim.progress_dialog_icon_drawable_animation));
dialog.setMessage("Some Text");
dialog.show();

This solution is really simple and worked for me, you could extend ProgressDialog and make it override the drawable internally, however, this was really too complicated for what I needed so I did not do it.

In C++

using namespace std;

string my_string {"Hello world"};
string element_to_be_found {"Hello"};

if(my_string.find(element_to_be_found)!=string::npos)
   std::cout<<"Element Found"<<std::endl;

According to the error message, you declared myLoc as a pointer to an NSInteger (NSInteger *myLoc) rather than an actual NSInteger (NSInteger myLoc). It needs to be the latter.

you can define attribute selected="selected" in Ex a

I downloaded pip binaries from here and it resolved the issue.

I am using this class for time in this format "hh:mm:ss" u can use it with "hh:mm:00" (zero seconds) for your example. Here is the complete code. It has compare and between function and also checks the time format (in case of invalid time and throws TimeException). Hope you can use it or modify it for your needs.

Time class:

package es.utility.time;

import java.util.regex.Matcher;
import java.util.regex.Pattern;

/**
 *
 * @author adrian
 */
public class Time {

    private int hours; //Hours of the day
    private int minutes; //Minutes of the day
    private int seconds; //Seconds of the day
    private String time; //Time of the day

    /**
     * Constructor of Time class
     *
     * @param time
     * @throws TimeException if time parameter is not valid
     */
    public Time(String time) throws TimeException {
        //Check if valid time
        if (!validTime(time)) {
            throw new TimeException();
        }
        //Init class parametars
        String[] params = time.split(":");
        this.time = time;
        this.hours = Integer.parseInt(params[0]);
        this.minutes = Integer.parseInt(params[1]);
        this.seconds = Integer.parseInt(params[2]);
    }

    /**
     * Constructor of Time class
     *
     * @param hours
     * @param minutes
     * @param seconds
     * @throws TimeException if time parameter is not valid
     */
    public Time(int hours, int minutes, int seconds) throws TimeException {
        //Check if valid time
        if (!validTime(hours, minutes, seconds)) {
            throw new TimeException();
        }
        this.time = timeToString(hours, minutes, seconds);
        this.hours = hours;
        this.minutes = minutes;
        this.seconds = seconds;

    }

    /**
     * Checks if the sting can be parsed as time
     *
     * @param time (correct from hh:mm:ss)
     * @return true if ok <br/> false if not ok
     */
    private boolean validTime(String time) {
        String regex = "([01]?[0-9]|2[0-3]):[0-5][0-9]:[0-5][0-9]";
        Pattern p = Pattern.compile(regex);
        Matcher m = p.matcher(time);
        return m.matches();
    }

    /**
     * Checks if the sting can be parsed as time
     *
     * @param hours hours
     * @param minutes minutes
     * @param seconds seconds
     * @return true if ok <br/> false if not ok
     */
    private boolean validTime(int hours, int minutes, int seconds) {
        return hours >= 0 && hours <= 23 && minutes >= 0 && minutes <= 59 && seconds >= 0 && seconds <= 59;
    }

    /**
     * From Integer values to String time
     *
     * @param hours
     * @param minutes
     * @param seconds
     * @return String generated from int values for hours minutes and seconds
     */
    private String timeToString(int hours, int minutes, int seconds) {
        StringBuilder timeBuilder = new StringBuilder("");
        if (hours < 10) {
            timeBuilder.append("0").append(hours);
        } else {
            timeBuilder.append(hours);
        }
        timeBuilder.append(":");
        if (minutes < 10) {
            timeBuilder.append("0").append(minutes);
        } else {
            timeBuilder.append(minutes);
        }
        timeBuilder.append(":");
        if (seconds < 10) {
            timeBuilder.append("0").append(seconds);
        } else {
            timeBuilder.append(seconds);
        }
        return timeBuilder.toString();
    }

    /**
     * Compare this time to other
     *
     * @param compare
     * @return -1 time is before <br/> 0 time is equal <br/> time is after
     */
    public int compareTime(Time compare) {
        //Check hours
        if (this.getHours() < compare.getHours()) { //If hours are before return -1
            return -1;
        }
        if (this.getHours() > compare.getHours()) { //If hours are after return 1
            return 1;
        }
        //If no return hours are equeal
        //Check minutes
        if (this.getMinutes() < compare.getMinutes()) { //If minutes are before return -1
            return -1;
        }
        if (this.getMinutes() > compare.getMinutes()) { //If minutes are after return 1
            return 1;
        }
        //If no return minutes are equeal
        //Check seconds
        if (this.getSeconds() < compare.getSeconds()) { //If minutes are before return -1
            return -1;
        }
        if (this.getSeconds() > compare.getSeconds()) { //If minutes are after return 1
            return 1;
        }
        //If no return seconds are equeal and return 0
        return 0;
    }

    public boolean isBetween(Time before, Time after) throws TimeException{
        if(before.compareTime(after)== 1){
            throw new TimeException("Time 'before' is after 'after' time");
        }
        //Compare with before and after
        if (this.compareTime(before) == -1 || this.compareTime(after) == 1) { //If time is before before time return false or time is after after time
            return false;
        } else {
            return true;
        }
    }

    public int getHours() {
        return hours;
    }

    public void setHours(int hours) {
        this.hours = hours;
    }

    public int getMinutes() {
        return minutes;
    }

    public void setMinutes(int minutes) {
        this.minutes = minutes;
    }

    public int getSeconds() {
        return seconds;
    }

    public void setSeconds(int seconds) {
        this.seconds = seconds;
    }

    public String getTime() {
        return time;
    }

    public void setTime(String time) {
        this.time = time;
    }

    /**
     * Override the toString method and return all of the class private
     * parameters
     *
     * @return String Time{" + "hours=" + hours + ", minutes=" + minutes + ",
     * seconds=" + seconds + ", time=" + time + '}'
     */
    @Override
    public String toString() {
        return "Time{" + "hours=" + hours + ", minutes=" + minutes + ", seconds=" + seconds + ", time=" + time + '}';
    }

}

TimeException class:

package es.utility.time;

/**
 *
 * @author adrian
 */
public class TimeException extends Exception {

    public TimeException() {
        super("Cannot create time with this params");
    }

    public TimeException(String message) {
        super(message);
    }

}

You're looking for the zip builtin function. From the docs:

>>> x = [1, 2, 3]
>>> y = [4, 5, 6]
>>> zipped = zip(x, y)
>>> zipped
[(1, 4), (2, 5), (3, 6)]

Caveats: this answer only allows exports color settings.

iTerm => Preferences => Profiles => Colors => Load Presets => Export

Import shall be similar.

Totally possible with the python-varname package (python3):

from varname import nameof

s = 'Hey!'

print (nameof(s))

Output:

s

Get the package here:

https://github.com/pwwang/python-varname

In this case you might want to use the functions np.hstack and np.vstack

arr = np.array([])
arr = np.hstack((arr, np.array([1,2,3])))
# arr is now [1,2,3]

arr = np.vstack((arr, np.array([4,5,6])))
# arr is now [[1,2,3],[4,5,6]]

You also can use the np.concatenate function.

Cheers

With reference to Yanchenko's answer on 29 April '10: Using a 'while(running)' approach is neat when your code under 'doInBackground' has to be executed multiple times during every execution of the AsyncTask. If your code under 'doInBackground' has to be executed only once per execution of the AsyncTask, wrapping all your code under 'doInBackground' in a 'while(running)' loop will not stop the background code (background thread) from running when the AsyncTask itself is cancelled, because the 'while(running)' condition will only be evaluated once all the code inside the while loop has been executed at least once. You should thus either (a.) break up your code under 'doInBackground' into multiple 'while(running)' blocks or (b.) perform numerous 'isCancelled' checks throughout your 'doInBackground' code, as explained under "Cancelling a task" at https://developer.android.com/reference/android/os/AsyncTask.html.

For option (a.) one can thus modify Yanchenko's answer as follows:

public class MyTask extends AsyncTask<Void, Void, Void> {

private volatile boolean running = true;

//...

@Override
protected void onCancelled() {
    running = false;
}

@Override
protected Void doInBackground(Void... params) {

    // does the hard work

    while (running) {
        // part 1 of the hard work
    }

    while (running) {
        // part 2 of the hard work
    }

    // ...

    while (running) {
        // part x of the hard work
    }
    return null;
}

// ...

For option (b.) your code in 'doInBackground' will look something like this:

public class MyTask extends AsyncTask<Void, Void, Void> {

//...

@Override
protected Void doInBackground(Void... params) {

    // part 1 of the hard work
    // ...
    if (isCancelled()) {return null;}

    // part 2 of the hard work
    // ...
    if (isCancelled()) {return null;}

    // ...

    // part x of the hard work
    // ...
    if (isCancelled()) {return null;}
}

// ...

One option is Text::Trim:

use Text::Trim;
print trim("  example  ");

set print elements 0

From the GDB manual:

set print elements number-of-elements

Set a limit on how many elements of an array GDB will print. If GDB is printing a large array, it stops printing after it has printed the number of elements set by the set print elements command. This limit also applies to the display of strings. When GDB starts, this limit is set to 200. Setting number-of-elements to zero means that the printing is unlimited.

yet another iOs7+iOs8 solution in Swift

var cell2height:CGFloat=44

override func viewDidLoad() {
    super.viewDidLoad()
    theTable.rowHeight = UITableViewAutomaticDimension
    theTable.estimatedRowHeight = 44.0;
}

func tableView(tableView: UITableView, cellForRowAtIndexPath indexPath: NSIndexPath) -> UITableViewCell {
    let cell =  tableView.dequeueReusableCellWithIdentifier("myTableViewCell", forIndexPath: indexPath) as! myTableViewCell
    cell2height=cell.contentView.height
    return cell
}

func tableView(tableView: UITableView, heightForRowAtIndexPath indexPath: NSIndexPath) -> CGFloat {
    if #available(iOS 8.0, *) {
        return UITableViewAutomaticDimension
    } else {
        return cell2height
    }
}

PriceList[0] is a float. PriceList[0][1] is trying to access the first element of a float. Instead, do

PriceList[0] = PriceList[1] = ...code omitted... = PriceList[6] = PizzaChange

or

PriceList[0:7] = [PizzaChange]*7

The other answers overcomplicate it for me.

let animals = {
  a: 'dog',
  b: 'cat',
  c: 'bird'
}

let lastKey = Object.keys(animals).pop()
let lastValue = animals[Object.keys(animals).pop()]

If you want to do it this way then this is the syntax you're after;

IF EXISTS (SELECT * FROM tblGLUserAccess WHERE GLUserName ='xxxxxxxx') 
BEGIN
   SELECT 1 
END
ELSE
BEGIN
    SELECT 2
END

You don't strictly need the BEGIN..END statements but it's probably best to get into that habit from the beginning.

you can use the google chart api and generate any color with rgb code on the fly:

example: marker with #ddd color:

http://chart.apis.google.com/chart?chst=d_map_pin_letter&chld=%E2%80%A2|ddd

include as stated above with

 var marker = new google.maps.Marker({
    position: marker,
    title: 'Hello World',
    icon: 'http://chart.apis.google.com/chart?chst=d_map_pin_letter&chld=%E2%80%A2|ddd'
});

You Could do something like this .....
Your Table

CREATE TABLE TestTable 
(
ID INT,
Data NVARCHAR(50)
)
GO

INSERT INTO TestTable
VALUES (1,'AABBCC'),
       (2,'FFDD'),
       (3,'TTHHJJKKLL')
GO

SELECT * FROM TestTable

My Suggestion

CREATE TABLE #DestinationTable
(
ID INT,
Data NVARCHAR(50)
)
GO  
    SELECT * INTO #Temp FROM TestTable

    DECLARE @String NVARCHAR(2)
    DECLARE @Data NVARCHAR(50)
    DECLARE @ID INT

    WHILE EXISTS (SELECT * FROM #Temp)
     BEGIN 
        SELECT TOP 1 @Data =  DATA, @ID = ID FROM  #Temp

          WHILE LEN(@Data) > 0
            BEGIN
                SET @String = LEFT(@Data, 2)

                INSERT INTO #DestinationTable (ID, Data)
                VALUES (@ID, @String)

                SET @Data = RIGHT(@Data, LEN(@Data) -2)
            END
        DELETE FROM #Temp WHERE ID = @ID
     END


SELECT * FROM #DestinationTable

Result Set

ID  Data
1   AA
1   BB
1   CC
2   FF
2   DD
3   TT
3   HH
3   JJ
3   KK
3   LL

DROP Temp Tables

DROP TABLE #Temp
DROP TABLE #DestinationTable

MySQL casts to Decimal:

Cast bare integer to decimal:

select cast(9 as decimal(4,2));       //prints 9.00

Cast Integers 8/5 to decimal:

select cast(8/5 as decimal(11,4));    //prints 1.6000

Cast string to decimal:

select cast(".885" as decimal(11,3));   //prints 0.885

Cast two int variables into a decimal

mysql> select 5 into @myvar1;
Query OK, 1 row affected (0.00 sec)

mysql> select 8 into @myvar2;
Query OK, 1 row affected (0.00 sec)

mysql> select @myvar1/@myvar2;   //prints 0.6250

Cast decimal back to string:

select cast(1.552 as char(10));   //shows "1.552"

Well, you are using both frame.setSize() and frame.pack().

You should use one of them at one time.

Using setSize() you can give the size of frame you want but if you use pack(), it will automatically change the size of the frames according to the size of components in it. It will not consider the size you have mentioned earlier.

Try removing frame.pack() from your code or putting it before setting size and then run it.

To count number of tables just do this:

USE your_db_name;    -- set database
SHOW TABLES;         -- tables lists
SELECT FOUND_ROWS(); -- number of tables

Sometimes easy things will do the work.

Create Refresh control using Selector method.   
    var refreshCntrl : UIRefreshControl!
    refreshCntrl = UIRefreshControl()
    refreshCntrl.tintColor = UIColor.whiteColor()
    refreshCntrl.attributedTitle = NSAttributedString(string: "Please Wait...")
    refreshCntrl.addTarget(self, action:"refreshControlValueChanged", forControlEvents: UIControlEvents.ValueChanged)
    atableView.addSubview(refreshCntrl)

//Refresh Control Method

func refreshControlValueChanged(){
    atableView.reloadData()
    refreshCntrl.endRefreshing()

}

System.ArgumentNullException: Value cannot be null. Parameter name: value

This error message is not very helpful!

You can get this error in many different ways. The error may not always be with the parameter name: value. It could be whatever parameter name is being passed into a function.

As a generic way to solve this, look at the stack trace or call stack:

Test method GetApiModel threw exception: 
System.ArgumentNullException: Value cannot be null.
Parameter name: value
    at Newtonsoft.Json.JsonConvert.DeserializeObject(String value, Type type, JsonSerializerSettings settings)

You can see that the parameter name value is the first parameter for DeserializeObject. This lead me to check my AutoMapper mapping where we are deserializing a JSON string. That string is null in my database.

You can change the code to check for null.

You can use CSS hover
Link to jsfiddle here: http://jsfiddle.net/ANKwQ/5/

HTML:

<a><img src='https://encrypted-tbn2.google.com/images?q=tbn:ANd9GcQB3a3aouZcIPEF0di4r9uK4c0r9FlFnCasg_P8ISk8tZytippZRQ'></a>
<div>text</div>
?

CSS:

div {
    display: none;
    border:1px solid #000;
    height:30px;
    width:290px;
    margin-left:10px;
}

a:hover + div {
    display: block;
}?

You can use a dictionary comprehension to create a new dictionary with that key removed:

>>> my_dict = {k: v for k, v in my_dict.items() if k != 'key'}

You can delete by conditions. No error if key doesn't exist.

The quick and dirty way, you can view the available environment variables from the below link.

http://localhost:8080/env-vars.html/

Just replace localhost with your Jenkins hostname, if its different

Use BufferedReader, you can make it read from standard input like this:

BufferedReader stdin = new BufferedReader(new InputStreamReader(System.in));
String line;

while ((line = stdin.readLine()) != null && line.length()!= 0) {
    String[] input = line.split(" ");
    if (input.length == 2) {
        System.out.println(calculateAnswer(input[0], input[1]));
    }
}

In addition to what other have said, you may also be interested to know that what in does is to call the list.__contains__ method, that you can define on any class you write and can get extremely handy to use python at his full extent.  

A dumb use may be:

>>> class ContainsEverything:
    def __init__(self):
        return None
    def __contains__(self, *elem, **k):
        return True


>>> a = ContainsEverything()
>>> 3 in a
True
>>> a in a
True
>>> False in a
True
>>> False not in a
False
>>>         

def prime_number(a):
    yes=[]
    for i in range (2,100):
        if (i==2 or i==3 or i==5 or i==7) or (i%2!=0 and i%3!=0 and i%5!=0 and i%7!=0 and i%(i**(float(0.5)))!=0):
            yes=yes+[i]
    print (yes)

One way to get the list of distinct column names from the database is to use distinct() in conjunction with values().

In your case you can do the following to get the names of distinct categories:

q = ProductOrder.objects.values('Category').distinct()
print q.query # See for yourself.

# The query would look something like
# SELECT DISTINCT "app_productorder"."category" FROM "app_productorder"

There are a couple of things to remember here. First, this will return a ValuesQuerySet which behaves differently from a QuerySet. When you access say, the first element of q (above) you'll get a dictionary, NOT an instance of ProductOrder.

Second, it would be a good idea to read the warning note in the docs about using distinct(). The above example will work but all combinations of distinct() and values() may not.

PS: it is a good idea to use lower case names for fields in a model. In your case this would mean rewriting your model as shown below:

class ProductOrder(models.Model):
    product  = models.CharField(max_length=20, primary_key=True)
    category = models.CharField(max_length=30)
    rank = models.IntegerField()

The Valery's answer helped me: https://stackoverflow.com/a/14265815/492457

WAMP uses different php.ini files in the CLI and for Apache. when you enable php_openssl through the WAMP UI, you enable it for Apache, not for the CLI. You need to modify C:\wamp\bin\php\php-5.4.3\php.ini to enable it for the CLI.

Taking DWins example.

What I often do, particularly when I use many, many different plots with the same colours or size information, is I store them in variables I otherwise never use. This helps me keep my code a little cleaner AND I can change it "globally".

E.g.

clab = 1.5
cmain = 2
caxis = 1.2

plot(1, 1 ,xlab="x axis", ylab="y axis",  pch=19,
           col.lab="red", cex.lab=clab,    
           col="green", main = "Testing scatterplots", cex.main =cmain, cex.axis=caxis) 

You can also write a function, doing something similar. But for a quick shot this is ideal. You can also store that kind of information in an extra script, so you don't have a messy plot script:

which you then call with setwd("") source("plotcolours.r")

in a file say called plotcolours.r you then store all the e.g. colour or size variables

clab = 1.5
cmain = 2
caxis = 1.2 

for colours could use

darkred<-rgb(113,28,47,maxColorValue=255)

as your variable 'darkred' now has the colour information stored, you can access it in your actual plotting script.

plot(1,1,col=darkred) 

If you have import android.support.v7.app.ActionBarActivity; and your class extends ActionBarActivity then use this in your OnCreate:

android.support.v7.app.ActionBar AB=getSupportActionBar();
AB.hide();

It seems that resource filtering/searching can be implemented in a RESTful way. The idea is to introduce a new endpoint called /filters/ or /api/filters/.

Using this endpoint filter can be considered as a resource and hence created via POST method. This way - of course - body can be used to carry all the parameters as well as complex search/filter structures can be created.

After creating such filter there are two possibilities to get the search/filter result.

1. A new resource with unique ID will be returned along with 201 Created status code. Then using this ID a GET request can be made to /api/users/ like:

   GET /api/users/?filterId=1234-abcd
   

2. After new filter is created via POST it won't reply with 201 Created but at once with 303 SeeOther along with Location header pointing to /api/users/?filterId=1234-abcd. This redirect will be automatically handled via underlying library.

In both scenarios two requests need to be made to get the filtered results - this may be considered as a drawback, especially for mobile applications. For mobile applications I'd use single POST call to /api/users/filter/.

How to keep created filters?

They can be stored in DB and used later on. They can also be stored in some temporary storage e.g. redis and have some TTL after which they will expire and will be removed.

What are the advantages of this idea?

Filters, filtered results are cacheable and can be even bookmarked.

Data validation drop down

There is a list option in Data validation. If this is combined with a VLOOKUP formula you would be able to convert the selected value into a number.

The steps in Excel 2010 are:

• Create your list with matching values.
• On the Data tab choose Data Validation
• The Data validation form will be displayed
• Set the Allow dropdown to List
• Set the Source range to the first part of your list
• Click on OK (User messages can be added if required)

In a cell enter a formula like this

=VLOOKUP(A2,$D$3:$E$5,2,FALSE)

which will return the matching value from the second part of your list.

Form control drop down

Alternatively, Form controls can be placed on a worksheet. They can be linked to a range and return the position number of the selected value to a specific cell.

The steps in Excel 2010 are:

• Create your list of data in a worksheet
• Click on the Developer tab and dropdown on the Insert option
• In the Form section choose Combo box or List box
• Use the mouse to draw the box on the worksheet
• Right click on the box and select Format control
• The Format control form will be displayed
• Click on the Control tab
• Set the Input range to your list of data
• Set the Cell link range to the cell where you want the number of the selected item to appear
• Click on OK

In bootstrap 3 you just need to initialise the modal through js and if in the moment of the page load the modal markup is in the page the modal will show up.

In case you want to prevent this, use the option show: false where you initialise the modal. Something like this: $('.modal').modal({ show: false })

v-flex does not have a display flex! Inspect v-flex in your browser and you will find out it is just a simple block div.

So, you should override it with display: flex in your HTML or CSS to make it work with justify-content.

<?xml version="1.0" encoding="utf-8"?>
<shape xmlns:android="http://schemas.android.com/apk/res/android"
android:shape="oval">
<solid
    android:color="#ffffff"
    />
</shape>

Set that on your XML drawable resources, and simple use and image button with an round image, using your drawable as background.

use this code

Data Source=.;Initial Catalog=master;Integrated Security=True

How about JFrame.setExtendedState(JFrame.MAXIMIZED_BOTH)?

If you need to change the path, add this after your .config in your app file. Then you can do $location.path('/sampleurl', false); to prevent reloading

app.run(['$route', '$rootScope', '$location', function ($route, $rootScope, $location) {
    var original = $location.path;
    $location.path = function (path, reload) {
        if (reload === false) {
            var lastRoute = $route.current;
            var un = $rootScope.$on('$locationChangeSuccess', function () {
                $route.current = lastRoute;
                un();
            });
        }
        return original.apply($location, [path]);
    };
}])

Credit goes to https://www.consolelog.io/angularjs-change-path-without-reloading for the most elegant solution I've found.

I'm a little out of touch with the details of how MySQL deals with nulls, but here's two things to try:

SELECT * FROM match WHERE id NOT IN 
    ( SELECT id FROM email WHERE id IS NOT NULL) ;

SELECT
    m.*
FROM
    match m
    LEFT OUTER JOIN email e ON
        m.id = e.id
        AND e.id IS NOT NULL
WHERE
    e.id IS NULL

The second query looks counter intuitive, but it does the join condition and then the where condition. This is the case where joins and where clauses are not equivalent.

Just a quick note. Be wary of using for..in if you use a library (jQuery, Prototype, etc.), as most of them add methods to created Objects (including dictionaries).

This will mean that when you loop over them, method names will appear as keys. If you are using a library, look at the documentation and look for an enumerable section, where you will find the right methods for iteration of your objects.

You need to set the height on the <html> and <body> elements as well; otherwise, they will only be large enough to fit the content. For example:

<!DOCTYPE html>_x000D_
<title>Example of 100% width and height</title>_x000D_
<style>_x000D_
html, body { height: 100%; margin: 0; }_x000D_
div { height: 100%; width: 100%; background: red; }_x000D_
</style>_x000D_
<div></div>

Use this line of code when scanning the second value: scanf(" %lf", &b); also replace all %ld with %lf.

It's a problem related with input stream buffer. You can also use fflush(stdin); after the first scanning to clear the input buffer and then the second scanf will work as expected. An alternate way is place a getch(); or getchar(); function after the first scanf line.

I faced the same problem. I restarted the oracle service for that DB instance and the error is gone.

The Java XML parser that spring uses will read the schemaLocation values and try to load them from the internet, in order to validate the XML file. Spring, in turn, intercepts those load requests and serves up versions from inside its own JAR files.

If you omit the schemaLocation, then the XML parser won't know where to get the schema in order to validate the config.

ls -lR is what you were looking for, or atleast I was. cheers

try

if (testString.Equals(testString2)){
}

var src = "data:image/jpeg;base64,";
src += item_image;
var newImage = document.createElement('img');
newImage.src = src;
newImage.width = newImage.height = "80";
document.querySelector('#imageContainer').innerHTML = newImage.outerHTML;//where to insert your image

FWIW, here's what I used:

expr "${arr[*]}" : ".*\<$item\>"

This works where there are no delimiters in any of the array items or in the search target. I didn't need to solve the general case for my applicaiton.

Check the column collation. This script might change the collation to the table default. Add the current collation to the script.

I'd like to write another option that I feel is cleaner and easier to maintain. We'll be using the defaultRouter to add CRUD urls for our viewset and we'll add one more fixed url specifying the uploader view within the same viewset.

**** views.py 

from rest_framework import viewsets, serializers
from rest_framework.decorators import action, parser_classes
from rest_framework.parsers import JSONParser, MultiPartParser
from rest_framework.response import Response
from rest_framework_csv.parsers import CSVParser
from posts.models import Post
from posts.serializers import PostSerializer     


class PostsViewSet(viewsets.ModelViewSet):

    queryset = Post.objects.all()
    serializer_class = PostSerializer 
    parser_classes = (JSONParser, MultiPartParser, CSVParser)


    @action(detail=False, methods=['put'], name='Uploader View', parser_classes=[CSVParser],)
    def uploader(self, request, filename, format=None):
        # Parsed data will be returned within the request object by accessing 'data' attr  
        _data = request.data

        return Response(status=204)

Project's main urls.py

**** urls.py 

from rest_framework import routers
from posts.views import PostsViewSet


router = routers.DefaultRouter()
router.register(r'posts', PostsViewSet)

urlpatterns = [
    url(r'^posts/uploader/(?P<filename>[^/]+)$', PostsViewSet.as_view({'put': 'uploader'}), name='posts_uploader')
    url(r'^', include(router.urls), name='root-api'),
    url('admin/', admin.site.urls),
]

.- README.

The magic happens when we add @action decorator to our class method 'uploader'. By specifying "methods=['put']" argument, we are only allowing PUT requests; perfect for file uploading.

I also added the argument "parser_classes" to show you can select the parser that will parse your content. I added CSVParser from the rest_framework_csv package, to demonstrate how we can accept only certain type of files if this functionality is required, in my case I'm only accepting "Content-Type: text/csv". Note: If you're adding custom Parsers, you'll need to specify them in parsers_classes in the ViewSet due the request will compare the allowed media_type with main (class) parsers before accessing the uploader method parsers.

Now we need to tell Django how to go to this method and where can be implemented in our urls. That's when we add the fixed url (Simple purposes). This Url will take a "filename" argument that will be passed in the method later on. We need to pass this method "uploader", specifying the http protocol ('PUT') in a list to the PostsViewSet.as_view method.

When we land in the following url

 http://example.com/posts/uploader/ 

it will expect a PUT request with headers specifying "Content-Type" and Content-Disposition: attachment; filename="something.csv".

curl -v -u user:pass http://example.com/posts/uploader/ --upload-file ./something.csv --header "Content-type:text/csv"

You would normally use -stringWithFormat here.

NSString *myString = [NSString stringWithFormat:@"%@%@%@", @"some text", stringVariable, @"some more text"];

You should use the OO interface to matplotlib, rather than the state machine interface. Almost all of the plt.* function are thin wrappers that basically do gca().*.

plt.subplot returns an axes object. Once you have a reference to the axes object you can plot directly to it, change its limits, etc.

import matplotlib.pyplot as plt

ax1 = plt.subplot(131)
ax1.scatter([1, 2], [3, 4])
ax1.set_xlim([0, 5])
ax1.set_ylim([0, 5])


ax2 = plt.subplot(132)
ax2.scatter([1, 2],[3, 4])
ax2.set_xlim([0, 5])
ax2.set_ylim([0, 5])

and so on for as many axes as you want.

or better, wrap it all up in a loop:

import matplotlib.pyplot as plt

DATA_x = ([1, 2],
          [2, 3],
          [3, 4])

DATA_y = DATA_x[::-1]

XLIMS = [[0, 10]] * 3
YLIMS = [[0, 10]] * 3

for j, (x, y, xlim, ylim) in enumerate(zip(DATA_x, DATA_y, XLIMS, YLIMS)):
    ax = plt.subplot(1, 3, j + 1)
    ax.scatter(x, y)
    ax.set_xlim(xlim)
    ax.set_ylim(ylim)

you can | for set union and & for set intersection.
for example:

    set1={1,2,3}
    set2={3,4,5}
    print(set1&set2)
    output=3

    set1={1,2,3}
    set2={3,4,5}
    print(set1|set2)
    output=1,2,3,4,5

curly braces in the answer.

Minimal runnable multi-file scope example

Here I illustrate how static affects the scope of function definitions across multiple files.

a.c

#include <stdio.h>

/* Undefined behavior: already defined in main.
 * Binutils 2.24 gives an error and refuses to link.
 * https://stackoverflow.com/questions/27667277/why-does-borland-compile-with-multiple-definitions-of-same-object-in-different-c
 */
/*void f() { puts("a f"); }*/

/* OK: only declared, not defined. Will use the one in main. */
void f(void);

/* OK: only visible to this file. */
static void sf() { puts("a sf"); }

void a() {
    f();
    sf();
}

main.c

#include <stdio.h>

void a(void);        

void f() { puts("main f"); }

static void sf() { puts("main sf"); }

void m() {
    f();
    sf();
}

int main() {
    m();
    a();
    return 0;
}

GitHub upstream.

Compile and run:

gcc -c a.c -o a.o
gcc -c main.c -o main.o
gcc -o main main.o a.o
./main

Output:

main f
main sf
main f
a sf

Interpretation

• there are two separate functions sf, one for each file
• there is a single shared function f

As usual, the smaller the scope, the better, so always declare functions static if you can.

In C programming, files are often used to represent "classes", and static functions represent "private" methods of the class.

A common C pattern is to pass a this struct around as the first "method" argument, which is basically what C++ does under the hood.

What standards say about it

C99 N1256 draft 6.7.1 "Storage-class specifiers" says that static is a "storage-class specifier".

6.2.2/3 "Linkages of identifiers" says static implies internal linkage:

If the declaration of a file scope identifier for an object or a function contains the storage-class specifier static, the identifier has internal linkage.

and 6.2.2/2 says that internal linkage behaves like in our example:

In the set of translation units and libraries that constitutes an entire program, each declaration of a particular identifier with external linkage denotes the same object or function. Within one translation unit, each declaration of an identifier with internal linkage denotes the same object or function.

where "translation unit" is a source file after preprocessing.

How GCC implements it for ELF (Linux)?

With the STB_LOCAL binding.

If we compile:

int f() { return 0; }
static int sf() { return 0; }

and disassemble the symbol table with:

readelf -s main.o

the output contains:

Num:    Value          Size Type    Bind   Vis      Ndx Name
  5: 000000000000000b    11 FUNC    LOCAL  DEFAULT    1 sf
  9: 0000000000000000    11 FUNC    GLOBAL DEFAULT    1 f

so the binding is the only significant difference between them. Value is just their offset into the .bss section, so we expect it to differ.

STB_LOCAL is documented on the ELF spec at http://www.sco.com/developers/gabi/2003-12-17/ch4.symtab.html:

STB_LOCAL Local symbols are not visible outside the object file containing their definition. Local symbols of the same name may exist in multiple files without interfering with each other

which makes it a perfect choice to represent static.

Functions without static are STB_GLOBAL, and the spec says:

When the link editor combines several relocatable object files, it does not allow multiple definitions of STB_GLOBAL symbols with the same name.

which is coherent with the link errors on multiple non static definitions.

If we crank up the optimization with -O3, the sf symbol is removed entirely from the symbol table: it cannot be used from outside anyways. TODO why keep static functions on the symbol table at all when there is no optimization? Can they be used for anything?

See also

• Same for variables: https://stackoverflow.com/a/14339047/895245
• extern is the opposite of static, and functions are already extern by default: How do I use extern to share variables between source files?

C++ anonymous namespaces

In C++, you might want to use anonymous namespaces instead of static, which achieves a similar effect, but further hides type definitions: Unnamed/anonymous namespaces vs. static functions

This might also work for you:

ME.find({'pictures.0': {$exists: true}});

By calling method

public class a 
{
    void sum(int i,int k)
    {
        System.out.println("THe sum of the number="+(i+k));
    }
}
class b
{
    public static void main(String[] args)
    {
        a vc=new a();
        vc.sum(10 , 20);
    }
}

var newArray = oldArray.filter(function(v){return v!==''});

An easy way to perform an if in lambda is by using list comprehension.

You can't raise an exception in lambda, but this is a way in Python 3.x to do something close to your example:

f = lambda x: print(x) if x==2 else print("exception")

Another example:

return 1 if M otherwise 0

f = lambda x: 1 if x=="M" else 0

You can do this. It looks more wordy than a tuple, but it's a big improvement because you get type checking.

Edit: Replaced snippet with complete working example, following Nick's suggestion. Playground link: http://play.golang.org/p/RNx_otTFpk

package main

import "fmt"

func main() {
    queue := make(chan struct {string; int})
    go sendPair(queue)
    pair := <-queue
    fmt.Println(pair.string, pair.int)
}

func sendPair(queue chan struct {string; int}) {
    queue <- struct {string; int}{"http:...", 3}
}

Anonymous structs and fields are fine for quick and dirty solutions like this. For all but the simplest cases though, you'd do better to define a named struct just like you did.

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

It depends. You could

string.match(/^abc$/)

But that would not match the following string: 'the first 3 letters of the alphabet are abc. not abc123'

I think you would want to use \b (word boundaries):

var str = 'the first 3 letters of the alphabet are abc. not abc123';_x000D_
var pat = /\b(abc)\b/g;_x000D_
console.log(str.match(pat));

Live example: http://jsfiddle.net/uu5VJ/

If the former solution works for you, I would advise against using it.

That means you may have something like the following:

var strs = ['abc', 'abc1', 'abc2']
for (var i = 0; i < strs.length; i++) {
    if (strs[i] == 'abc') {
        //do something 
    }
    else {
        //do something else
    }
}

While you could use

if (str[i].match(/^abc$/g)) {
    //do something 
}

It would be considerably more resource-intensive. For me, a general rule of thumb is for a simple string comparison use a conditional expression, for a more dynamic pattern use a regular expression.

More on JavaScript regexes: https://developer.mozilla.org/en/JavaScript/Guide/Regular_Expressions

laravel pluck returns an array

if your query is:

 $name = DB::table('users')->where('name', 'John')->pluck('name');

then the array is like this (key is the index of the item. auto incremented value):

[
    1 => "name1",
    2 => "name2",
    .
    .
    .
    100 => "name100"
]

but if you do like this:

$name = DB::table('users')->where('name', 'John')->pluck('name','id');

then the key is actual index in the database.

key||value
[
    1 => "name1",
    2 => "name2",
    .
    .
    .
    100 => "name100"
]

you can set any value as key.

if you want the object on the stack, try this:

MyClass myclass;
myclass.DoSomething();

If you need a pointer to that object:

MyClass* myclassptr = &myclass;
myclassptr->DoSomething();

I re-encounter this in the hard way as well. H vs h, for 24-hour vs 12 hour !

Latest versions of Excel has a new tool called Slicers. Using slicers in VBA is actually more reliable that .CurrentPage (there have been reports of bugs while looping through numerous filter options). Here is a simple example of how you can select a slicer item (remember to deselect all the non-relevant slicer values):

Sub Step_Thru_SlicerItems2()
Dim slItem As SlicerItem
Dim i As Long
Dim searchName as string

Application.ScreenUpdating = False
searchName="Value1"

    For Each slItem In .VisibleSlicerItems
        If slItem.Name <> .SlicerItems(1).Name Then _
            slItem.Selected = False
        Else
            slItem.Selected = True
        End if
    Next slItem
End Sub

There are also services like SmartKato that would help you out with setting up your dashboards or reports and/or fix your code.

Do the Quick fix in the Markers tab.

Reference: https://metamug.com/blog/eclipse-gson-class-not-found

public static boolean isParsable(String input) {
    try {
        Integer.parseInt(input);
        return true;
    } catch (final NumberFormatException e) {
        return false;
    }
}

You want to use coalesce():

where coalesce(email, email2) like '%[email protected]%'

If you want to handle empty strings ('') versus NULL, a case works:

where (case when email is NULL or email = '' then email2 else email end) like '%[email protected]%'

And, if you are worried about the string really being just spaces:

where (case when email is NULL or ltrim(email) = '' then email2 else email end) like '%[email protected]%'

As an aside, the sample if statement is really saying "If email starts with a number larger than 0". This is because the comparison is to 0, a number. MySQL implicitly tries to convert the string to a number. So, '[email protected]' would fail, because the string would convert as 0. As would '[email protected]'. But, '[email protected]' and '[email protected]' would succeed.

eval: This is very powerful, but is also very dangerous if you accept strings to evaluate from untrusted input. Suppose the string being evaluated is "os.system('rm -rf /')" ? It will really start deleting all the files on your computer.

ast.literal_eval: Safely evaluate an expression node or a string containing a Python literal or container display. The string or node provided may only consist of the following Python literal structures: strings, bytes, numbers, tuples, lists, dicts, sets, booleans, None, bytes and sets.

Syntax:

eval(expression, globals=None, locals=None)
import ast
ast.literal_eval(node_or_string)

Example:

# python 2.x - doesn't accept operators in string format
import ast
ast.literal_eval('[1, 2, 3]')  # output: [1, 2, 3]
ast.literal_eval('1+1') # output: ValueError: malformed string


# python 3.0 -3.6
import ast
ast.literal_eval("1+1") # output : 2
ast.literal_eval("{'a': 2, 'b': 3, 3:'xyz'}") # output : {'a': 2, 'b': 3, 3:'xyz'}
# type dictionary
ast.literal_eval("",{}) # output : Syntax Error required only one parameter
ast.literal_eval("__import__('os').system('rm -rf /')") # output : error

eval("__import__('os').system('rm -rf /')") 
# output : start deleting all the files on your computer.
# restricting using global and local variables
eval("__import__('os').system('rm -rf /')",{'__builtins__':{}},{})
# output : Error due to blocked imports by passing  '__builtins__':{} in global

# But still eval is not safe. we can access and break the code as given below
s = """
(lambda fc=(
lambda n: [
    c for c in 
        ().__class__.__bases__[0].__subclasses__() 
        if c.__name__ == n
    ][0]
):
fc("function")(
    fc("code")(
        0,0,0,0,"KABOOM",(),(),(),"","",0,""
    ),{}
)()
)()
"""
eval(s, {'__builtins__':{}})

In the above code ().__class__.__bases__[0] nothing but object itself. Now we instantiated all the subclasses, here our main enter code hereobjective is to find one class named n from it.

We need to code object and function object from instantiated subclasses. This is an alternative way from CPython to access subclasses of object and attach the system.

From python 3.7 ast.literal_eval() is now stricter. Addition and subtraction of arbitrary numbers are no longer allowed. link

-XX:PermSize -XX:MaxPermSize are used to set size for Permanent Generation.

Permanent Generation: The Permanent Generation is where class files are kept. These are the result of compiled classes and JSP pages. If this space is full, it triggers a Full Garbage Collection. If the Full Garbage Collection cannot clean out old unreferenced classes and there is no room left to expand the Permanent Space, an Out-of- Memory error (OOME) is thrown and the JVM will crash.

Double escaping is required when presented as a string.

Whenever I'm making a new regular expression I do a bunch of tests with online tools, for example: http://www.regexplanet.com/advanced/java/index.html

That website allows you to enter the regular expression, which it'll escape into a string for you, and you can then test it against different inputs.

country.code is not in your group by statement, and is not an aggregate (wrapped in an aggregate function).

https://www.w3schools.com/sql/sql_ref_sqlserver.asp

I think the best option is to use guide_legend within guides:

p + guides(fill=guide_legend(
                 keywidth=0.1,
                 keyheight=0.1,
                 default.unit="inch")
      )

Note the use of default.unit , no need to load grid package.

As others mention, it's a child selector. Here's the appropriate link.

http://www.w3.org/TR/CSS2/selector.html#child-selectors

You need to create a TypeReference object for each generic type you use and use that for deserialization. For example -

mapper.readValue(jsonString, new TypeReference<Data<String>>() {});

It's easier to kill a session, when some meaningful name is given:

//Creation:
screen -S some_name proc
// Kill detached session
screen -S some_name -X quit