I believe there are two main reasons for trying to seperate templated code into a header and a cpp:

One is for mere elegance. We all like to write code that is wasy to read, manage and is reusable later.

Other is reduction of compilation times.

I am currently (as always) coding simulation software in conjuction with OpenCL and we like to keep code so it can be run using float (cl_float) or double (cl_double) types as needed depending on HW capability. Right now this is done using a #define REAL at the beginning of the code, but this is not very elegant. Changing desired precision requires recompiling the application. Since there are no real run-time types, we have to live with this for the time being. Luckily OpenCL kernels are compiled runtime, and a simple sizeof(REAL) allows us to alter the kernel code runtime accordingly.

The much bigger problem is that even though the application is modular, when developing auxiliary classes (such as those that pre-calculate simulation constants) also have to be templated. These classes all appear at least once on the top of the class dependency tree, as the final template class Simulation will have an instance of one of these factory classes, meaning that practically every time I make a minor change to the factory class, the entire software has to be rebuilt. This is very annoying, but I cannot seem to find a better solution.

I've written this Codesandbox for a roundtrip from UTC to local time and from local time to UTC. You can change the timezone and the format. Enjoy!

Full Example on Codesandbox (DEMO):

https://codesandbox.io/s/momentjs-utc-to-local-roundtrip-foj57?file=/src/App.js

If you're using Vuex you can use https://github.com/vuejs/vuex-router-sync

Just initialize it in your main file with:

import VuexRouterSync from 'vuex-router-sync';
VuexRouterSync.sync(store, router);

Each route change will update route state object in Vuex. You can next create getter to use the from Object in route state or just use the state (better is to use getters, but it's other story https://vuex.vuejs.org/en/getters.html), so in short it would be (inside components methods/values):

this.$store.state.route.from.fullPath

You can also just place it in <router-link> component:

<router-link :to="{ path: $store.state.route.from.fullPath }"> 
  Back 
</router-link>

So when you use code above, link to previous path would be dynamically generated.

The logic of Post order traversal without using Recursion

In Postorder traversal, the processing order is left-right-current. So we need to visit the left section first before visiting other parts. We will try to traverse down to the tree as left as possible for each node of the tree. For each current node, if the right child is present then push it into the stack before pushing the current node while root is not NULL/None. Now pop a node from the stack and check whether the right child of that node exists or not. If it exists, then check whether it's same as the top element or not. If they are same then it indicates that we are not done with right part yet, so before processing the current node we have to process the right part and for that pop the top element(right child) and push the current node back into the stack. At each time our head is the popped element. If the current element is not the same as the top and head is not NULL then we are done with both the left and right section so now we can process the current node. We have to repeat the previous steps until the stack is empty.

def Postorder_iterative(head):
    if head is None:
        return None
    sta=stack()
    while True:
        while head is not None:
            if head.r:
                sta.push(head.r)
            sta.push(head)
            head=head.l
        if sta.top is -1:
            break
        head = sta.pop()
        if head.r is not None and sta.top is not -1  and head.r is sta.A[sta.top]:
            x=sta.pop()
            sta.push(head)
            head=x
        else:
            print(head.val,end = ' ')
            head=None
    print()    

Both the other answers accomplish what you want.

You can use the pivot functionality to arrange the data in a nice table

df.groupby(['Fruit','Name'],as_index = False).sum().pivot('Fruit','Name').fillna(0)



Name    Bob     Mike    Steve   Tom    Tony
Fruit                   
Apples  16.0    9.0     10.0    0.0     0.0
Grapes  35.0    0.0     0.0     87.0    15.0
Oranges 67.0    57.0    0.0     15.0    1.0

Use calc!

https://jsbin.com/wehixalome/edit?html,css,output

HTML:

<div class="left">
  100 px wide!
  </div><!-- Notice there isn't a space between the divs! *see edit for alternative* --><div class="right">
    Fills width!
  </div>

CSS:

.left {
  display: inline-block;
  width: 100px;

  background: red;
  color: white;
}
.right {
  display: inline-block;
  width: calc(100% - 100px);

  background: blue;
  color: white;
}

Update: As an alternative to not having a space between the divs you can set font-size: 0 on the outer element.

I recommend Pygments. It accepts a piece of code in any language and outputs syntax highlighted LaTeX code. It uses fancyvrb and color packages to produce its output. I personally prefer it to the listing package. I think fancyvrb creates much prettier results.

you can do this

while 2 in x:   
    x.remove(2)

better solution with list comprehension

x = [ i for i in x if i!=2 ]

This should work:

$('.myClass, .myOtherClass').removeClass('theclass');

You must add the multiple selectors all in the first argument to $(), otherwise you are giving jQuery a context in which to search, which is not what you want.

It's the same as you would do in CSS.

1.Create a new class which supers UITabBarController. E.g:

class xxx: UITabBarController {
override func viewDidLoad() {
        super.viewDidLoad()
}

2.Add the following code to the function viewDidLoad():

self.selectedIndex = 1; //set the tab index you want to show here, start from 0

3.Go to storyboard, and set the Custom Class of your Tab Bar Controller to this new class. (MyVotes1 as the example in the pic)

Here is my take: these functions convert a UTF8 string to a proper HEX without the extra zeroes padding. A real UTF8 string has characters with 1, 2, 3 and 4 bytes length.

While working on this I found a couple key things that solved my problems:

1. str.split('') doesn't handle multi-byte characters like emojis correctly. The proper/modern way to handle this is with Array.from(str)
2. encodeURIComponent() and decodeURIComponent() are great tools to convert between string and hex. They are pretty standard, they handle UTF8 correctly.
3. (Most) ASCII characters (codes 0 - 127) don't get URI encoded, so they need to handled separately. But c.charCodeAt(0).toString(16) works perfectly for those

    function utf8ToHex(str) {
      return Array.from(str).map(c => 
        c.charCodeAt(0) < 128 ? c.charCodeAt(0).toString(16) : 
        encodeURIComponent(c).replace(/\%/g,'').toLowerCase()
      ).join('');
    },
    function hexToUtf8: function(hex) {
      return decodeURIComponent('%' + hex.match(/.{1,2}/g).join('%'));
    }

Demo: https://jsfiddle.net/lyquix/k2tjbrvq/

assume you want one item to be clicked each time. Then this code works well. Let's take the listview name as stlist

stList.setOnItemClickListener(new AdapterView.OnItemClickListener() {
        @Override
        // here i overide the onitemclick method in onitemclick listener
            public void onItemClick(AdapterView<?> parent, View view,
                                int position, long id) {

            //color change
            //selected item colored

            for(int i=0; i<stList.getAdapter().getCount();i++)
            {
                stList.getChildAt(i).setBackgroundColor(Color.TRANSPARENT);
            }

            parent.getChildAt(position).setBackgroundColor(Color.GRAY);

    });

Bash supports all sorts of wildcards and expansions.

Your exact case would be handled by brace expansion, like so:

$ rm -rf abc.log.2012-03-{14,27,28}

The above would expand to a single command with all three arguments, and be equivalent to typing:

$ rm -rf abc.log.2012-03-14 abc.log.2012-03-27 abc.log.2012-03-28

It's important to note that this expansion is done by the shell, before rm is even loaded.

Use DISTINCT to remove duplicate GROUPING SETS from the GROUP BY clause

In a completely silly example using GROUPING SETS() in general (or the special grouping sets ROLLUP() or CUBE() in particular), you could use DISTINCT in order to remove the duplicate values produced by the grouping sets again:

SELECT DISTINCT actors
FROM (VALUES('a'), ('a'), ('b'), ('b')) t(actors)
GROUP BY CUBE(actors, actors)

With DISTINCT:

actors
------
NULL
a
b

Without DISTINCT:

actors
------
a
b
NULL
a
b
a
b

But why, apart from making an academic point, would you do that?

Use DISTINCT to find unique aggregate function values

In a less far-fetched example, you might be interested in the DISTINCT aggregated values, such as, how many different duplicate numbers of actors are there?

SELECT DISTINCT COUNT(*)
FROM (VALUES('a'), ('a'), ('b'), ('b')) t(actors)
GROUP BY actors

Answer:

count
-----
2

Use DISTINCT to remove duplicates with more than one GROUP BY column

Another case, of course, is this one:

SELECT DISTINCT actors, COUNT(*)
FROM (VALUES('a', 1), ('a', 1), ('b', 1), ('b', 2)) t(actors, id)
GROUP BY actors, id

With DISTINCT:

actors  count
-------------
a       2
b       1

Without DISTINCT:

actors  count
-------------
a       2
b       1
b       1

For more details, I've written some blog posts, e.g. about GROUPING SETS and how they influence the GROUP BY operation, or about the logical order of SQL operations (as opposed to the lexical order of operations).

Abstraction means to show only the necessary details to the client of the object

Actually that is encapsulation. also see the first part of the wikipedia article in order to not be confused by encapsulation and data hiding. http://en.wikipedia.org/wiki/Encapsulation_(object-oriented_programming)

keep in mind that by simply hiding all you class members 1:1 behind properties is not encapsulation at all. encapsulation is all about protecting invariants and hiding of implementation details.

here a good article about that. http://blog.ploeh.dk/2012/11/27/Encapsulationofproperties/ also take a look at the articles linked in that article.

classes, properties and access modifiers are tools to provide encapsulation in c#.

you do encapsulation in order to reduce complexity.

Abstraction is "the process of identifying common patterns that have systematic variations; an abstraction represents the common pattern and provides a means for specifying which variation to use" (Richard Gabriel).

Yes, that is a good definition for abstraction.

They are different concepts. Abstraction is the process of refining away all the unneeded/unimportant attributes of an object and keep only the characteristics best suitable for your domain.

Yes, they are different concepts. keep in mind that abstraction is actually the opposite of making an object suitable for YOUR domain ONLY. it is in order to make the object suitable for the domain in general!

if you have a actual problem and provide a specific solution, you can use abstraction to formalize a more generic solution that can also solve more problems that have the same common pattern. that way you can increase the re-usability for your components or use components made by other programmers that are made for the same domain, or even for different domains.

good examples are classes provided by the .net framework, for example list or collection. these are very abstract classes that you can use almost everywhere and in a lot of domains. Imagine if .net only implemented a EmployeeList class and a CompanyList that could only hold a list of employees and companies with specific properties. such classes would be useless in a lot of cases. and what a pain would it be if you had to re-implement the whole functionality for a CarList for example. So the "List" is ABSTRACTED away from Employee, Company and Car. The List by itself is an abstract concept that can be implemented by its own class.

Interfaces, abstract classes or inheritance and polymorphism are tools to provide abstraction in c#.

you do abstraction in order to provide reusability.

Make sure that your sas.png is marked as Build Action: Content and Copy To Output Directory: Copy Always in its Visual Studio Properties...

I think the C# source code goes like this...

Image image = new Image();
image.Source = (new ImageSourceConverter()).ConvertFromString("pack://application:,,,/Bilder/sas.png") as ImageSource;

and XAML should be

<Image Height="200" HorizontalAlignment="Left" Margin="12,12,0,0" 
       Name="image1" Stretch="Fill" VerticalAlignment="Top" 
       Source="../Bilder/sas.png"
       Width="350" />  

EDIT

Dynamically I think XAML would provide best way to load Images ...

<Image Source="{Binding Converter={StaticResource MyImageSourceConverter}}"
       x:Name="MyImage"/>

where image.DataContext is string path.

MyImage.DataContext = "pack://application:,,,/Bilder/sas.png";

public class MyImageSourceConverter : IValueConverter
{
    public object Convert(object value_, Type targetType_, 
    object parameter_, System.Globalization.CultureInfo culture_)
    {
        return (new ImageSourceConverter()).ConvertFromString (value.ToString());
    }

    public object ConvertBack(object value, Type targetType, 
    object parameter, CultureInfo culture)
    {
          throw new NotImplementedException();
    }
}

Now as you set a different data context, Image would be automatically loaded at runtime.

There's no need, just use fadeToggle() on the element:

$('#testElement').fadeToggle('fast');

Here's a demo.

If you're using jQuery, you can use extend

myElement.id =0;
myElement.value=1;
myArray[0] = $.extend({}, myElement);

myElement.id = 2;
myElement.value = 3;
myArray[1] = $.extend({}, myElement);

@hydroo: Without the extra file:

#define SOME_ENUM(DO) \
    DO(Foo) \
    DO(Bar) \
    DO(Baz)

#define MAKE_ENUM(VAR) VAR,
enum MetaSyntacticVariable{
    SOME_ENUM(MAKE_ENUM)
};

#define MAKE_STRINGS(VAR) #VAR,
const char* const MetaSyntacticVariableNames[] = {
    SOME_ENUM(MAKE_STRINGS)
};

Easiest way is replace this default bootstrap code:

<button class="navbar-toggler" type="button" data-toggle="collapse" data-target="#navbarSupportedContent" aria-controls="navbarSupportedContent" aria-expanded="false" aria-label="Toggle navigation">
    <span class="navbar-toggler-icon"></span>
</button>

by this :

<button class="navbar-toggler" type="button" data-toggle="collapse" data-target="#navbarSupportedContent" aria-controls="navbarSupportedContent" aria-expanded="false" aria-label="Toggle navigation">
    <span class="" role="button" ><i class="fa fa-bars" aria-hidden="true" style="color:#e6e6ff"></i></span>
</button>

And don't forget to add this code also to your file:

<link rel="stylesheet" href="https://cdnjs.cloudflare.com/ajax/libs/font-awesome/4.7.0/css/font-awesome.min.css"> 

Hope it helps!!

A File is an abstraction for a file in a filesystem, and the filesystems don't know anything about what are the contents of a JAR.

Try with an URI, I think there's a jar:// protocol that might be useful for your purpouses.

For OSX users:

Run the following command to install Memcached:

brew install memcached

Use java.util.Timer and Timer#schedule(TimerTask,delay,period) method will help you.

public class RemindTask extends TimerTask {
    public void run() {
      System.out.println(" Hello World!");
    }
    public static void main(String[] args){
       Timer timer = new Timer();
       timer.schedule(new RemindTask(), 3000,3000);
    }
  }

I prefer using utility methods fromm Google Collections lib from class Objects that helps me to keep my code clean. Very often equals and hashcode methods are made from IDE's template, so their are not clean to read.

grep -v

or

grep --invert-match

You can also do the same thing using find:

find . -type f \( -iname "*" ! -iname ".exe" ! -iname ".html"\)

More info here.

You may try;

$this->Output(/path/to/file);

So for you, it will be like;

$this->Output(/kuitit/);  //or try ("/kuitit/")

import inspect
def s(template, **kwargs):
    "Usage: s(string, **locals())"
    if not kwargs:
        frame = inspect.currentframe()
        try:
            kwargs = frame.f_back.f_locals
        finally:
            del frame
        if not kwargs:
            kwargs = globals()
    return template.format(**kwargs)

Usage:

a = 123
s('{a}', locals()) # print '123'
s('{a}') # it is equal to the above statement: print '123'
s('{b}') # raise an KeyError: b variable not found

PS: performance may be a problem. This is useful for local scripts, not for production logs.

Duplicated:

• Python string formatting: % vs. .format

• What is the Python equivalent of embedding an expression in a string? (ie. "#{expr}" in Ruby)

• What is Ruby equivalent of Python's `s= "hello, %s. Where is %s?" % ("John","Mary")`

• Is there a Python equivalent to Ruby's string interpolation?

This might be your script-free solution: http://davidwalsh.name/css-transform-rotate

It's supported in all browsers prefixed and, in IE10-11 and all still-used Firefox versions, unprefixed.

That means that if you don't care for old IEs (the bane of web designers) you can skip the -ms- and -moz- prefixes to economize space.

However, the Webkit browsers (Chrome, Safari, most mobile navigators) still need -webkit-, and there's a still-big cult following of pre-Next Opera and using -o- is sensate.

So let's say after getMasterData servlet will response.sendRedirect to to test.jsp.

In test.jsp

Create a javascript

<script type="text/javascript">
function alertName(){
alert("Form has been submitted");
} 
</script> 

and than at the bottom

<script type="text/javascript"> window.onload = alertName; </script>

Note:im not sure how to type the code in stackoverflow!. Edit: I just learned how to

Edit 2: TO the question:This works perfectly. Another question. How would I get rid of the initial alert when I first start up the JSP? "Form has been submitted" is present the second I execute. It shows up after the load is done to which is perfect.

To do that i would highly recommendation to use session!

So what you want to do is in your servlet:

session.setAttribute("getAlert", "Yes");//Just initialize a random variable.
response.sendRedirect(test.jsp);

than in the test.jsp

<%
session.setMaxInactiveInterval(2);
%>

 <script type="text/javascript">
var Msg ='<%=session.getAttribute("getAlert")%>';
    if (Msg != "null") {
 function alertName(){
 alert("Form has been submitted");
 } 
 }
 </script> 

and than at the bottom

<script type="text/javascript"> window.onload = alertName; </script>

So everytime you submit that form a session will be pass on! If session is not null the function will run!

If I am not mistaken, it will be onunload event.

"Occurs when the application is about to be unloaded." - MSDN

Log.v("blah", "blah blah");

You need to add the android Log view in eclipse to see them. There are also other methods depending on the severity of the message (error, verbose, warning, etc..).

In addition to File.ReadAllText, File.ReadAllLines, and File.WriteAllText (and similar helpers from File class) shown in another answer you can use StreamWriter/StreamReader classes.

Writing a text file:

using(StreamWriter writetext = new StreamWriter("write.txt"))
{
    writetext.WriteLine("writing in text file");
}

Reading a text file:

using(StreamReader readtext = new StreamReader("readme.txt"))
{
   string readText = readtext.ReadLine();
}

Notes:

• You can use readtext.Dispose() instead of using, but it will not close file/reader/writer in case of exceptions
• Be aware that relative path is relative to current working directory. You may want to use/construct absolute path.
• Missing using/Close is very common reason of "why data is not written to file".

Since jackson-databind:2.10 JsonNode has the toPrettyString() method to easily format JSON:

objectMapper
  .readTree("{}")
  .toPrettyString()
;

From the docs:

public String toPrettyString()

Alternative to toString() that will serialize this node using Jackson default pretty-printer.

Since:
2.10

REST is just a software architecture style for exposing resources.

• Use HTTP methods explicitly.
• Be stateless.
• Expose directory structure-like URIs.
• Transfer XML, JavaScript Object Notation (JSON), or both.

A typical REST call to return information about customer 34456 could look like:

http://example.com/customer/34456

Have a look at the IBM tutorial for REST web services

Try this:

declare @var char(3)
set @var='[%]'
select Address from Accomodation where Address like '%'+@var+'%' 

You must use [] cancels the effect of wildcard, so you read % as a normal character, idem about character _

You have 3 options:

1) Get default value

dt = datetime??DateTime.Now;

it will assign DateTime.Now (or any other value which you want) if datetime is null

2) Check if datetime contains value and if not return empty string

if(!datetime.HasValue) return "";
dt = datetime.Value;

3) Change signature of method to

public string ConvertToPersianToShow(DateTime  datetime)

It's all because DateTime? means it's nullable DateTime so before assigning it to DateTime you need to check if it contains value and only then assign.

Here is a shorter way of achieving it:

let result = objArray.map(a => a.foo);

OR

let result = objArray.map(({ foo }) => foo)

You can also check Array.prototype.map().

You can use the properties tab in eclipse to set various values.

here are all the possible values

• none
• text
• textCapCharacters
• textCapWords
• textCapSentences
• textAutoCorrect
• textAutoComplete
• textMultiLine
• textImeMultiLine
• textNoSuggestions
• textUri
• textEmailAddress
• textEmailSubject
• textShortMessage
• textLongMessage
• textPersonName
• textPostalAddress
• textPassword
• textVisiblePassword
• textWebEditText
• textFilter
• textPhonetic
• textWebEmailAddress
• textWebPassword
• number
• numberSigned
• numberDecimal
• numberPassword
• phone
• datetime
• date
• time

Check here for explanations: http://developer.android.com/reference/android/widget/TextView.html#attr_android:inputType

Use json_encode() if your server side scripting lang is PHP, json_encode() escapes the newline & other unexpected tokens for you (if not using PHP look for similar function for your scripting language)

then use $.parseJSON() in your JavaScript, done!

actually it's quite easy when you know how to do it:

<section data-speed='.618' data-type='background' style='background: url(someUrl) 
top center no-repeat fixed;  width: 100%; height: 40vw;'>
<div style='width: 100%; height: 40vw;'>
</div>
</section>

the trick is just to set the enclosed div just as a normal div with dimensional values same as the background dimensional values (in this example, 100% and 40vw).

Using print function without parentheses works with older versions of Python but is no longer supported on Python3, so you have to put the arguments inside parentheses. However, there are workarounds, as mentioned in the answers to this question. Since the support for Python2 has ended in Jan 1st 2020, the answer has been modified to be compatible with Python3.

You could do any of these (and there may be other ways):

(1)  print("First number is {} and second number is {}".format(first, second))
(1b) print("First number is {first} and number is {second}".format(first=first, second=second)) 

or

(2) print('First number is', first, 'second number is', second) 

(Note: A space will be automatically added afterwards when separated from a comma)

or

(3) print('First number %d and second number is %d' % (first, second))

or

(4) print('First number is ' + str(first) + ' second number is' + str(second))
  

Using format() (1/1b) is preferred where available.

Don't use array_values on your $row

$res_arr_values = array();
while ($row = mysql_fetch_array($result, MYSQL_ASSOC))
   {
       array_push($res_arr_values, $row);
   }

Also, the preferred way to add a value to an array is writing $array[] = $value;, not using array_push

$res_arr_values = array();
while ($row = mysql_fetch_array($result, MYSQL_ASSOC))
   {
       $res_arr_values[] = $row;
   }

And a further optimization is not to call mysql_fetch_array($result, MYSQL_ASSOC) but to use mysql_fetch_assoc($result) directly.

$res_arr_values = array();
while ($row = mysql_fetch_assoc($result))
   {
       $res_arr_values[] = $row;
   }

I've just had this problem with MariaDB/InnoDB and was able to fix it by

• create the required table in the correct database in another MySQL/MariaDB instance
• stop both servers
• copy .ibd, .frm files to original server
• start both servers
• drop problem table on both servers

If you want to use socket.io together with php this may be your answer!

project website:

elephant.io

they are also on github:

https://github.com/wisembly/elephant.io

Elephant.io provides a socket.io client fully written in PHP that should be usable everywhere in your project.

It is a light and easy to use library that aims to bring some real-time functionality to a PHP application through socket.io and websockets for actions that could not be done in full javascript.

example from the project website (communicate with websocket server through php)

php server

use ElephantIO\Client as Elephant;

$elephant = new Elephant('http://localhost:8000', 'socket.io', 1, false, true, true);

$elephant->init();
$elephant->send(
    ElephantIOClient::TYPE_EVENT,
    null,
    null,
    json_encode(array('name' => 'foo', 'args' => 'bar'))
);
$elephant->close();

echo 'tryin to send `bar` to the event `foo`';

socket io server

var io = require('socket.io').listen(8000);

io.sockets.on('connection', function (socket) {
  console.log('user connected!');

  socket.on('foo', function (data) {
    console.log('here we are in action event and data is: ' + data);
  });
});

I use the html code tag after each line (see below) and it works for me.

George Benson </br> 123 Main Street </br> New York, Ny 12344 </br>

This should not be difficult. When creating a cell for your table, add a UITextField object to the cell's content view

UITextField *txtField = [[UITextField alloc] initWithFrame....]
...
[cell.contentView addSubview:txtField]

Set the delegate of the UITextField as self (ie your viewcontroller) Give a tag to the text field so you can identify which textfield was edited in your delegate methods. The keyboard should pop up when the user taps the text field. I got it working like this. Hope it helps.

As to the cause, the <f:attribute> is specific to the component itself (populated during view build time), not to the iterated row (populated during view render time).

There are several ways to achieve the requirement.

1. If your servletcontainer supports a minimum of Servlet 3.0 / EL 2.2, then just pass it as an argument of action/listener method of UICommand component or AjaxBehavior tag. E.g.

    <h:commandLink action="#{bean.insert(item.id)}" value="insert" />
   

   In combination with:

    public void insert(Long id) {
        // ...
    }
   

   This only requires that the datamodel is preserved for the form submit request. Best is to put the bean in the view scope by @ViewScoped.

   You can even pass the entire item object:

    <h:commandLink action="#{bean.insert(item)}" value="insert" />
   

   with:

    public void insert(Item item) {
        // ...
    }
   

   On Servlet 2.5 containers, this is also possible if you supply an EL implementation which supports this, like as JBoss EL. For configuration detail, see this answer.

   ---

2. Use <f:param> in UICommand component. It adds a request parameter.

    <h:commandLink action="#{bean.insert}" value="insert">
        <f:param name="id" value="#{item.id}" />
    </h:commandLink>
   

   If your bean is request scoped, let JSF set it by @ManagedProperty

    @ManagedProperty(value="#{param.id}")
    private Long id; // +setter
   

   Or if your bean has a broader scope or if you want more fine grained validation/conversion, use <f:viewParam> on the target view, see also f:viewParam vs @ManagedProperty:

    <f:viewParam name="id" value="#{bean.id}" required="true" />
   

   Either way, this has the advantage that the datamodel doesn't necessarily need to be preserved for the form submit (for the case that your bean is request scoped).

   ---

3. Use <f:setPropertyActionListener> in UICommand component. The advantage is that this removes the need for accessing the request parameter map when the bean has a broader scope than the request scope.

    <h:commandLink action="#{bean.insert}" value="insert">
        <f:setPropertyActionListener target="#{bean.id}" value="#{item.id}" />
    </h:commandLink>
   

   In combination with

    private Long id; // +setter
   

   It'll be just available by property id in action method. This only requires that the datamodel is preserved for the form submit request. Best is to put the bean in the view scope by @ViewScoped.

   ---

4. Bind the datatable value to DataModel<E> instead which in turn wraps the items.

    <h:dataTable value="#{bean.model}" var="item">
   

   with

    private transient DataModel<Item> model;
   
    public DataModel<Item> getModel() {
        if (model == null) {
            model = new ListDataModel<Item>(items);
        }
        return model;
    }
   

   (making it transient and lazily instantiating it in the getter is mandatory when you're using this on a view or session scoped bean since DataModel doesn't implement Serializable)

   Then you'll be able to access the current row by DataModel#getRowData() without passing anything around (JSF determines the row based on the request parameter name of the clicked command link/button).

    public void insert() {
        Item item = model.getRowData();
        Long id = item.getId();
        // ...
    }
   

   This also requires that the datamodel is preserved for the form submit request. Best is to put the bean in the view scope by @ViewScoped.

   ---

5. Use Application#evaluateExpressionGet() to programmatically evaluate the current #{item}.

    public void insert() {
        FacesContext context = FacesContext.getCurrentInstance();
        Item item = context.getApplication().evaluateExpressionGet(context, "#{item}", Item.class);
        Long id = item.getId();
        // ...
    }
   

   ---

Which way to choose depends on the functional requirements and whether the one or the other offers more advantages for other purposes. I personally would go ahead with #1 or, when you'd like to support servlet 2.5 containers as well, with #2.

1 + 2 + 4 conditions: starts|ends, but not in the middle

/^@[^@]*@?$|^@?[^@]*@$/

is almost the same that:

/^@?[^@]*@?$/

but this one matches any string without @, sample 'my name is hal9000'

This article (Why is window.showModalDialog deprecated? What to use instead?) seems to suggest that showModalDialog has been deprecated.

This is completely possible. Use Javascript.

I use jQuery to select the input element. I have it set up with an on change event.

$("#aFile_upload").on("change", function (e) {

    var count=1;
    var files = e.currentTarget.files; // puts all files into an array

    // call them as such; files[0].size will get you the file size of the 0th file
    for (var x in files) {

        var filesize = ((files[x].size/1024)/1024).toFixed(4); // MB

        if (files[x].name != "item" && typeof files[x].name != "undefined" && filesize <= 10) { 

            if (count > 1) {

                approvedHTML += ", "+files[x].name;
            }
            else {

                approvedHTML += files[x].name;
            }

            count++;
        }
    }
    $("#approvedFiles").val(approvedHTML);

});

The code above saves all the file names that I deem worthy of persisting to the submission page, before the submit actually happens. I add the "approved" files to an input element's val using jQuery so a form submit will send the names of the files I want to save. All the files will be submitted, however, now on the server side we do have to filter these out. I haven't written any code for that yet, but use your imagination. I assume one can accomplish this by a for loop and matching the names sent over from the input field and match them to the $_FILES(PHP Superglobal, sorry I dont know ruby file variable) variable.

My point is you can do checks for files before submission. I do this and then output it to the user before he/she submits the form, to let them know what they are uploading to my site. Anything that doesn't meet the criteria does not get displayed back to the user and therefore they should know, that the files that are too large wont be saved. This should work on all browsers because I'm not using FormData object.

Are you sure you are adding the correct user? Have you checked to see which user is set for your applications app pool?

This error will also happen if it cannot read the file for some reason; such as the file is locked or used by another application. Since this is an ASP.NET web application you will want to make sure you are not performing any actions that would require the file to be locked; unless you can guarantee you will only have one user on your page at a time.

Can you post an example of how you access the file? What type of file is it? Code snippets will help you get a more exact answer.

 $('mainCheckBox').click(function(){
    if($(this).prop('checked')){
        $('Id or Class of checkbox').prop('checked', true);
    }else{
        $('Id or Class of checkbox').prop('checked', false);
    }
});

Mongo includes a mongoexport utility (see docs) which can dump a collection. This utility uses the native libmongoclient and is likely the fastest method.

mongoexport -d <database> -c <collection_name>

Also helpful:

-o: write the output to file, otherwise standard output is used (docs)

--jsonArray: generates a valid json document, instead of one json object per line (docs)

--pretty: outputs formatted json (docs)

To keep open your windows console and to not use other output methods rather than the standard output stream cout go to Name-of-your-project -> Properties -> Linker -> System.

Once there, select the SubSytem Tab and mark Console (/SUBSYSTEM:CONSOLE). Once you have done this, whenever you want to compile use Ctrl + F5 (Start without debugging) and your console will keep opened. :)

Use a comma ","

eg: 
UPDATE my_table SET rowOneValue = rowOneValue + 1, rowTwoValue  = rowTwoValue + ( (rowTwoValue / (rowTwoValue) ) + ?) * (v + 1) WHERE value = ?

Use the Log class. Output visible with LogCat

<form onSubmit={(e) => {this.doSomething(); e.preventDefault();}}></form>

it work fine for me

Here is a version of @adabyron's answer that prevents the leaky EventArgs abstraction.

First, the modified EventToCommandBehavior class (now a generic abstract class and formatted with ReSharper code cleanup). Note the new GetCommandParameter virtual method and its default implementation:

public abstract class EventToCommandBehavior<TEventArgs> : Behavior<FrameworkElement>
    where TEventArgs : EventArgs
{
    public static readonly DependencyProperty EventProperty = DependencyProperty.Register("Event", typeof(string), typeof(EventToCommandBehavior<TEventArgs>), new PropertyMetadata(null, OnEventChanged));
    public static readonly DependencyProperty CommandProperty = DependencyProperty.Register("Command", typeof(ICommand), typeof(EventToCommandBehavior<TEventArgs>), new PropertyMetadata(null));
    public static readonly DependencyProperty PassArgumentsProperty = DependencyProperty.Register("PassArguments", typeof(bool), typeof(EventToCommandBehavior<TEventArgs>), new PropertyMetadata(false));
    private Delegate _handler;
    private EventInfo _oldEvent;

    public string Event
    {
        get { return (string)GetValue(EventProperty); }
        set { SetValue(EventProperty, value); }
    }

    public ICommand Command
    {
        get { return (ICommand)GetValue(CommandProperty); }
        set { SetValue(CommandProperty, value); }
    }

    public bool PassArguments
    {
        get { return (bool)GetValue(PassArgumentsProperty); }
        set { SetValue(PassArgumentsProperty, value); }
    }

    protected override void OnAttached()
    {
        AttachHandler(Event);
    }

    protected virtual object GetCommandParameter(TEventArgs e)
    {
        return e;
    }

    private void AttachHandler(string eventName)
    {
        _oldEvent?.RemoveEventHandler(AssociatedObject, _handler);

        if (string.IsNullOrEmpty(eventName))
        {
            return;
        }

        EventInfo eventInfo = AssociatedObject.GetType().GetEvent(eventName);

        if (eventInfo != null)
        {
            MethodInfo methodInfo = typeof(EventToCommandBehavior<TEventArgs>).GetMethod("ExecuteCommand", BindingFlags.Instance | BindingFlags.NonPublic);

            _handler = Delegate.CreateDelegate(eventInfo.EventHandlerType, this, methodInfo);
            eventInfo.AddEventHandler(AssociatedObject, _handler);
            _oldEvent = eventInfo;
        }
        else
        {
            throw new ArgumentException($"The event '{eventName}' was not found on type '{AssociatedObject.GetType().FullName}'.");
        }
    }

    private static void OnEventChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)
    {
        var behavior = (EventToCommandBehavior<TEventArgs>)d;

        if (behavior.AssociatedObject != null)
        {
            behavior.AttachHandler((string)e.NewValue);
        }
    }

    // ReSharper disable once UnusedMember.Local
    // ReSharper disable once UnusedParameter.Local
    private void ExecuteCommand(object sender, TEventArgs e)
    {
        object parameter = PassArguments ? GetCommandParameter(e) : null;

        if (Command?.CanExecute(parameter) == true)
        {
            Command.Execute(parameter);
        }
    }
}

Next, an example derived class that hides DragCompletedEventArgs. Some people expressed concern about leaking the EventArgs abstraction into their view model assembly. To prevent this, I created an interface that represents the values we care about. The interface can live in the view model assembly with the private implementation in the UI assembly:

// UI assembly
public class DragCompletedBehavior : EventToCommandBehavior<DragCompletedEventArgs>
{
    protected override object GetCommandParameter(DragCompletedEventArgs e)
    {
        return new DragCompletedArgs(e);
    }

    private class DragCompletedArgs : IDragCompletedArgs
    {
        public DragCompletedArgs(DragCompletedEventArgs e)
        {
            Canceled = e.Canceled;
            HorizontalChange = e.HorizontalChange;
            VerticalChange = e.VerticalChange;
        }

        public bool Canceled { get; }
        public double HorizontalChange { get; }
        public double VerticalChange { get; }
    }
}

// View model assembly
public interface IDragCompletedArgs
{
    bool Canceled { get; }
    double HorizontalChange { get; }
    double VerticalChange { get; }
}

Cast the command parameter to IDragCompletedArgs, similar to @adabyron's answer.

Including the implementation file (test.c) causes it to be prepended to your main.c and complied there and then again separately. So, the function test has two definitions -- one in the object code of main.c and once in that of test.c, which gives you a ODR violation. You need to create a header file containing the declaration of test and include it in main.c:

/* test.h */
#ifndef TEST_H
#define TEST_H
void test(); /* declaration */
#endif /* TEST_H */

Maybe try this:

yum -y groupinstall "MYSQL Database Client"

hr {
    border: 1px dotted #ff0000;
    border-style: none none dotted; 
    color: #fff; 
    background-color: #fff;
}

Try this

Something like this perhaps...

<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN" "http://www.w3.org/TR/html4/strict.dtd">
<html>
    <head>
        <style>
            #container
            {
                width:600px;
            }

            #head, #sub-title
            {
                width:100%;
            }

            #sub-left, #sub-right
            {
                width:50%;
                float:left;
            }

        </style>
    </head>

    <body>
        <div id="container">
            <div id="head">
                 #head
            </div>
            <div id="sub-title">
                #sub-title
                <div id="sub-left">
                    #sub-left
                </div>

                <div id="sub-right">
                    #sub-right
                </div>
            </div>
        </div>
    </body>
</html>

ECMAScript 6 UPDATE

This uses a new feature of JavaScript called Promises

functionOne().then(functionTwo);

You don't need any jQuery specific code to handle this. Just use a RegExp to replace them:

$("#a").className = $("#a").className.replace(/\bbg.*?\b/g, '');

You can modify this to support any prefix but the faster method is above as the RegExp will be compiled only once:

function removeClassByPrefix(el, prefix) {
    var regx = new RegExp('\\b' + prefix + '.*?\\b', 'g');
    el.className = el.className.replace(regx, '');
    return el;
}

You better do this syntax

if not (item in mylist):  
    Code inside the if

Adding another answer that uses switch... There are more comprehensive examples out there, but this will give you the idea.

In example, t becomes the specified data type within each case scope. Note, you have to provide a case for only one type at a type, otherwise t remains an interface.

package main

import "fmt"

func main() {
    var val interface{} // your starting value
    val = 4

    var i int // your final value

    switch t := val.(type) {
    case int:
        fmt.Printf("%d == %T\n", t, t)
        i = t
    case int8:
        fmt.Printf("%d == %T\n", t, t)
        i = int(t) // standardizes across systems
    case int16:
        fmt.Printf("%d == %T\n", t, t)
        i = int(t) // standardizes across systems
    case int32:
        fmt.Printf("%d == %T\n", t, t)
        i = int(t) // standardizes across systems
    case int64:
        fmt.Printf("%d == %T\n", t, t)
        i = int(t) // standardizes across systems
    case bool:
        fmt.Printf("%t == %T\n", t, t)
        // // not covertible unless...
        // if t {
        //  i = 1
        // } else {
        //  i = 0
        // }
    case float32:
        fmt.Printf("%g == %T\n", t, t)
        i = int(t) // standardizes across systems
    case float64:
        fmt.Printf("%f == %T\n", t, t)
        i = int(t) // standardizes across systems
    case uint8:
        fmt.Printf("%d == %T\n", t, t)
        i = int(t) // standardizes across systems
    case uint16:
        fmt.Printf("%d == %T\n", t, t)
        i = int(t) // standardizes across systems
    case uint32:
        fmt.Printf("%d == %T\n", t, t)
        i = int(t) // standardizes across systems
    case uint64:
        fmt.Printf("%d == %T\n", t, t)
        i = int(t) // standardizes across systems
    case string:
        fmt.Printf("%s == %T\n", t, t)
        // gets a little messy...
    default:
        // what is it then?
        fmt.Printf("%v == %T\n", t, t)
    }

    fmt.Printf("i == %d\n", i)
}

There is a slight difference in the ordering of the bytecode.

2 * (i * i):

     iconst_2
     iload0
     iload0
     imul
     imul
     iadd

vs 2 * i * i:

     iconst_2
     iload0
     imul
     iload0
     imul
     iadd

At first sight this should not make a difference; if anything the second version is more optimal since it uses one slot less.

So we need to dig deeper into the lower level (JIT)¹.

Remember that JIT tends to unroll small loops very aggressively. Indeed we observe a 16x unrolling for the 2 * (i * i) case:

030   B2: # B2 B3 <- B1 B2  Loop: B2-B2 inner main of N18 Freq: 1e+006
030     addl    R11, RBP    # int
033     movl    RBP, R13    # spill
036     addl    RBP, #14    # int
039     imull   RBP, RBP    # int
03c     movl    R9, R13 # spill
03f     addl    R9, #13 # int
043     imull   R9, R9  # int
047     sall    RBP, #1
049     sall    R9, #1
04c     movl    R8, R13 # spill
04f     addl    R8, #15 # int
053     movl    R10, R8 # spill
056     movdl   XMM1, R8    # spill
05b     imull   R10, R8 # int
05f     movl    R8, R13 # spill
062     addl    R8, #12 # int
066     imull   R8, R8  # int
06a     sall    R10, #1
06d     movl    [rsp + #32], R10    # spill
072     sall    R8, #1
075     movl    RBX, R13    # spill
078     addl    RBX, #11    # int
07b     imull   RBX, RBX    # int
07e     movl    RCX, R13    # spill
081     addl    RCX, #10    # int
084     imull   RCX, RCX    # int
087     sall    RBX, #1
089     sall    RCX, #1
08b     movl    RDX, R13    # spill
08e     addl    RDX, #8 # int
091     imull   RDX, RDX    # int
094     movl    RDI, R13    # spill
097     addl    RDI, #7 # int
09a     imull   RDI, RDI    # int
09d     sall    RDX, #1
09f     sall    RDI, #1
0a1     movl    RAX, R13    # spill
0a4     addl    RAX, #6 # int
0a7     imull   RAX, RAX    # int
0aa     movl    RSI, R13    # spill
0ad     addl    RSI, #4 # int
0b0     imull   RSI, RSI    # int
0b3     sall    RAX, #1
0b5     sall    RSI, #1
0b7     movl    R10, R13    # spill
0ba     addl    R10, #2 # int
0be     imull   R10, R10    # int
0c2     movl    R14, R13    # spill
0c5     incl    R14 # int
0c8     imull   R14, R14    # int
0cc     sall    R10, #1
0cf     sall    R14, #1
0d2     addl    R14, R11    # int
0d5     addl    R14, R10    # int
0d8     movl    R10, R13    # spill
0db     addl    R10, #3 # int
0df     imull   R10, R10    # int
0e3     movl    R11, R13    # spill
0e6     addl    R11, #5 # int
0ea     imull   R11, R11    # int
0ee     sall    R10, #1
0f1     addl    R10, R14    # int
0f4     addl    R10, RSI    # int
0f7     sall    R11, #1
0fa     addl    R11, R10    # int
0fd     addl    R11, RAX    # int
100     addl    R11, RDI    # int
103     addl    R11, RDX    # int
106     movl    R10, R13    # spill
109     addl    R10, #9 # int
10d     imull   R10, R10    # int
111     sall    R10, #1
114     addl    R10, R11    # int
117     addl    R10, RCX    # int
11a     addl    R10, RBX    # int
11d     addl    R10, R8 # int
120     addl    R9, R10 # int
123     addl    RBP, R9 # int
126     addl    RBP, [RSP + #32 (32-bit)]   # int
12a     addl    R13, #16    # int
12e     movl    R11, R13    # spill
131     imull   R11, R13    # int
135     sall    R11, #1
138     cmpl    R13, #999999985
13f     jl     B2   # loop end  P=1.000000 C=6554623.000000

We see that there is 1 register that is "spilled" onto the stack.

And for the 2 * i * i version:

05a   B3: # B2 B4 <- B1 B2  Loop: B3-B2 inner main of N18 Freq: 1e+006
05a     addl    RBX, R11    # int
05d     movl    [rsp + #32], RBX    # spill
061     movl    R11, R8 # spill
064     addl    R11, #15    # int
068     movl    [rsp + #36], R11    # spill
06d     movl    R11, R8 # spill
070     addl    R11, #14    # int
074     movl    R10, R9 # spill
077     addl    R10, #16    # int
07b     movdl   XMM2, R10   # spill
080     movl    RCX, R9 # spill
083     addl    RCX, #14    # int
086     movdl   XMM1, RCX   # spill
08a     movl    R10, R9 # spill
08d     addl    R10, #12    # int
091     movdl   XMM4, R10   # spill
096     movl    RCX, R9 # spill
099     addl    RCX, #10    # int
09c     movdl   XMM6, RCX   # spill
0a0     movl    RBX, R9 # spill
0a3     addl    RBX, #8 # int
0a6     movl    RCX, R9 # spill
0a9     addl    RCX, #6 # int
0ac     movl    RDX, R9 # spill
0af     addl    RDX, #4 # int
0b2     addl    R9, #2  # int
0b6     movl    R10, R14    # spill
0b9     addl    R10, #22    # int
0bd     movdl   XMM3, R10   # spill
0c2     movl    RDI, R14    # spill
0c5     addl    RDI, #20    # int
0c8     movl    RAX, R14    # spill
0cb     addl    RAX, #32    # int
0ce     movl    RSI, R14    # spill
0d1     addl    RSI, #18    # int
0d4     movl    R13, R14    # spill
0d7     addl    R13, #24    # int
0db     movl    R10, R14    # spill
0de     addl    R10, #26    # int
0e2     movl    [rsp + #40], R10    # spill
0e7     movl    RBP, R14    # spill
0ea     addl    RBP, #28    # int
0ed     imull   RBP, R11    # int
0f1     addl    R14, #30    # int
0f5     imull   R14, [RSP + #36 (32-bit)]   # int
0fb     movl    R10, R8 # spill
0fe     addl    R10, #11    # int
102     movdl   R11, XMM3   # spill
107     imull   R11, R10    # int
10b     movl    [rsp + #44], R11    # spill
110     movl    R10, R8 # spill
113     addl    R10, #10    # int
117     imull   RDI, R10    # int
11b     movl    R11, R8 # spill
11e     addl    R11, #8 # int
122     movdl   R10, XMM2   # spill
127     imull   R10, R11    # int
12b     movl    [rsp + #48], R10    # spill
130     movl    R10, R8 # spill
133     addl    R10, #7 # int
137     movdl   R11, XMM1   # spill
13c     imull   R11, R10    # int
140     movl    [rsp + #52], R11    # spill
145     movl    R11, R8 # spill
148     addl    R11, #6 # int
14c     movdl   R10, XMM4   # spill
151     imull   R10, R11    # int
155     movl    [rsp + #56], R10    # spill
15a     movl    R10, R8 # spill
15d     addl    R10, #5 # int
161     movdl   R11, XMM6   # spill
166     imull   R11, R10    # int
16a     movl    [rsp + #60], R11    # spill
16f     movl    R11, R8 # spill
172     addl    R11, #4 # int
176     imull   RBX, R11    # int
17a     movl    R11, R8 # spill
17d     addl    R11, #3 # int
181     imull   RCX, R11    # int
185     movl    R10, R8 # spill
188     addl    R10, #2 # int
18c     imull   RDX, R10    # int
190     movl    R11, R8 # spill
193     incl    R11 # int
196     imull   R9, R11 # int
19a     addl    R9, [RSP + #32 (32-bit)]    # int
19f     addl    R9, RDX # int
1a2     addl    R9, RCX # int
1a5     addl    R9, RBX # int
1a8     addl    R9, [RSP + #60 (32-bit)]    # int
1ad     addl    R9, [RSP + #56 (32-bit)]    # int
1b2     addl    R9, [RSP + #52 (32-bit)]    # int
1b7     addl    R9, [RSP + #48 (32-bit)]    # int
1bc     movl    R10, R8 # spill
1bf     addl    R10, #9 # int
1c3     imull   R10, RSI    # int
1c7     addl    R10, R9 # int
1ca     addl    R10, RDI    # int
1cd     addl    R10, [RSP + #44 (32-bit)]   # int
1d2     movl    R11, R8 # spill
1d5     addl    R11, #12    # int
1d9     imull   R13, R11    # int
1dd     addl    R13, R10    # int
1e0     movl    R10, R8 # spill
1e3     addl    R10, #13    # int
1e7     imull   R10, [RSP + #40 (32-bit)]   # int
1ed     addl    R10, R13    # int
1f0     addl    RBP, R10    # int
1f3     addl    R14, RBP    # int
1f6     movl    R10, R8 # spill
1f9     addl    R10, #16    # int
1fd     cmpl    R10, #999999985
204     jl     B2   # loop end  P=1.000000 C=7419903.000000

Here we observe much more "spilling" and more accesses to the stack [RSP + ...], due to more intermediate results that need to be preserved.

Thus the answer to the question is simple: 2 * (i * i) is faster than 2 * i * i because the JIT generates more optimal assembly code for the first case.

But of course it is obvious that neither the first nor the second version is any good; the loop could really benefit from vectorization, since any x86-64 CPU has at least SSE2 support.

So it's an issue of the optimizer; as is often the case, it unrolls too aggressively and shoots itself in the foot, all the while missing out on various other opportunities.

In fact, modern x86-64 CPUs break down the instructions further into micro-ops (µops) and with features like register renaming, µop caches and loop buffers, loop optimization takes a lot more finesse than a simple unrolling for optimal performance. According to Agner Fog's optimization guide:

The gain in performance due to the µop cache can be quite considerable if the average instruction length is more than 4 bytes. The following methods of optimizing the use of the µop cache may be considered:

• Make sure that critical loops are small enough to fit into the µop cache.
• Align the most critical loop entries and function entries by 32.
• Avoid unnecessary loop unrolling.
• Avoid instructions that have extra load time
  . . .

Regarding those load times - even the fastest L1D hit costs 4 cycles, an extra register and µop, so yes, even a few accesses to memory will hurt performance in tight loops.

But back to the vectorization opportunity - to see how fast it can be, we can compile a similar C application with GCC, which outright vectorizes it (AVX2 is shown, SSE2 is similar)²:

  vmovdqa ymm0, YMMWORD PTR .LC0[rip]
  vmovdqa ymm3, YMMWORD PTR .LC1[rip]
  xor eax, eax
  vpxor xmm2, xmm2, xmm2
.L2:
  vpmulld ymm1, ymm0, ymm0
  inc eax
  vpaddd ymm0, ymm0, ymm3
  vpslld ymm1, ymm1, 1
  vpaddd ymm2, ymm2, ymm1
  cmp eax, 125000000      ; 8 calculations per iteration
  jne .L2
  vmovdqa xmm0, xmm2
  vextracti128 xmm2, ymm2, 1
  vpaddd xmm2, xmm0, xmm2
  vpsrldq xmm0, xmm2, 8
  vpaddd xmm0, xmm2, xmm0
  vpsrldq xmm1, xmm0, 4
  vpaddd xmm0, xmm0, xmm1
  vmovd eax, xmm0
  vzeroupper

With run times:

• SSE: 0.24 s, or 2 times as fast.
• AVX: 0.15 s, or 3 times as fast.
• AVX2: 0.08 s, or 5 times as fast.

¹ _{To get JIT generated assembly output, get a debug JVM and run with -XX:+PrintOptoAssembly}

² _{The C version is compiled with the -fwrapv flag, which enables GCC to treat signed integer overflow as a two's-complement wrap-around.}

Think about it. When your client makes a GET request to an URI X, what it's saying to the server is: "I want a representation of the resource located at X, and this operation shouldn't change anything on the server." A PUT request is saying: "I want you to replace whatever is the resource located at X with the new entity I'm giving you on the body of this request". A DELETE request is saying: "I want you to delete whatever is the resource located at X". A PATCH is saying "I'm giving you this diff, and you should try to apply it to the resource at X and tell me if it succeeds." But a POST is saying: "I'm sending you this data subordinated to the resource at X, and we have a previous agreement on what you should do with it."

If you don't have it documented somewhere that the resource expects a POST and does something with it, it doesn't make sense to send a POST to it expecting it to act like a GET.

REST relies on the standardized behavior of the underlying protocol, and POST is precisely the method used for an action that isn't standardized. The result of a GET, PUT and DELETE requests are clearly defined in the standard, but POST isn't. The result of a POST is subordinated to the server, so if it's not documented that you can use POST to do something, you have to assume that you can't.

In JavaScript you cannot have the direct access to the filesystem. However, you can make browser to pop up a dialog window allowing the user to pick the save location. In order to do this, use the replace method with your Base64String and replace "image/png" with "image/octet-stream":

"data:image/png;base64,iVBORw0KG...".replace("image/png", "image/octet-stream");

Also, W3C-compliant browsers provide 2 methods to work with base64-encoded and binary data:

• atob()
• btoa()

Probably, you will find them useful in a way...

Here is a refactored version of what I understand you need:

window.addEventListener('DOMContentLoaded', () => {_x000D_
  const img = document.getElementById('embedImage');_x000D_
  img.src = 'data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAUA' +_x000D_
    'AAAFCAYAAACNbyblAAAAHElEQVQI12P4//8/w38GIAXDIBKE0DHxgljNBAAO' +_x000D_
    '9TXL0Y4OHwAAAABJRU5ErkJggg==';_x000D_
_x000D_
  img.addEventListener('load', () => button.removeAttribute('disabled'));_x000D_
  _x000D_
  const button = document.getElementById('saveImage');_x000D_
  button.addEventListener('click', () => {_x000D_
    window.location.href = img.src.replace('image/png', 'image/octet-stream');_x000D_
  });_x000D_
});

<!DOCTYPE html>_x000D_
<html>_x000D_
_x000D_
<body>_x000D_
  <img id="embedImage" alt="Red dot" />_x000D_
  <button id="saveImage" disabled="disabled">save image</button>_x000D_
</body>_x000D_
_x000D_
</html>

Try this. It works on C# it should work on java also. If you want to exclude spaces just add \s in there @"[^\p{L}\p{Nd}]+"

I would go for a solution like this:

int monthNr = getMonth();
final Month monthEnum = Month.of(monthNr);
int daysInMonth;
if (monthNr == 2) {
    int year = getYear();
    final boolean leapYear = IsoChronology.INSTANCE.isLeapYear(year);
    daysInMonth = monthEnum.length(leapYear);
} else {
    daysInMonth = monthEnum.maxLength();
}

If the month isn't February (92% of the cases), it depends on the month only and it is more efficient not to involve the year. This way, you don't have to call logic to know whether it is a leap year and you don't need to get the year in 92% of the cases. And it is still clean and very readable code.

You can remove the first character of a string using substring:

var s1 = "foobar";
var s2 = s1.substring(1);
alert(s2); // shows "oobar"

To remove all 0's at the start of the string:

var s = "0000test";
while(s.charAt(0) === '0')
{
 s = s.substring(1);
}

In my case i had had Fiddler running which had changed my proxy settings

There are after and before methods for Timestamp which will do the trick

Here is a nice vanilla JS function I wrote to extract form data as an object. It also has options for inserting additions into the object, and for clearing the form input fields.

const extractFormData = ({ form, clear, add }) => {
  return [].slice.call(form.children).filter(node => node.nodeName === 'INPUT')
  .reduce((formData, input) => {
    const value = input.value
    if (clear) { input.value = '' }
    return {
      ...formData,
      [input.name]: value
    }
  }, add)
}

Here is an example of its use with a post request:

submitGrudge(e) {
  e.preventDefault()

  const form = e.target
  const add = { id: Date.now(), forgiven: false }
  const grudge = extractFormData({ form, add, clear: true })

  // grudge = {
  //  "name": "Example name",
  //  "offense": "Example string",
  //  "date": "2017-02-16",
  //  "id": 1487877281983,
  //  "forgiven": false
  // }

  fetch('http://localhost:3001/api/grudge', {
    method: 'post',
    headers: { 'Content-Type': 'application/json' },
    body: JSON.stringify(grudge)
  })
    .then(response => response.json())
    .then(grudges => this.setState({ grudges }))
    .catch(err => console.log('error: ', err))
}

To those that are incline to use GUI:

Click Right mouse button on procecdure name then select Test

Then in new window you will see script generated just add the parameters and click on Start Debugger or F9

Hope this saves you some time.

This works for me:

val personsMap = persons.foldLeft(scala.collection.mutable.Map[Int, PersonDTO]()) {
    (m, p) => m(p.id) = p; m
}

The Map has to be mutable and the Map has to be return since adding to a mutable Map does not return a map.

for PHP 7.3 / Ubuntu

sudo apt install php7.3-zip

for PHP 7.4

sudo apt install php7.4-zip

Follow the below steps to unlock the handlers at the parent level:

1) In the connections tree(in IIS), go to your server node and then to your website.

2) For the website, in the right window you will see configuration editor under Management.

3) Double click on the configuration editor.

4) In the window that opens, on top you will find a drop down for sections. Choose "system.webServer/handlers" from the drop down.

5) On the right side, there is another drop down. Choose "ApplicationHost.Config "

6) On the right most pane, you will find "Unlock Section" under "Section" heading. Click on that.

7) Once the handlers at the applicationHost is unlocked, your website should run fine.

I always do this to download the packages:

pip install --download /path/to/download/to_packagename

OR

pip install --download=/path/to/packages/downloaded -r requirements.txt

And when I want to install all of those libraries I just downloaded, I do this:

pip install --no-index --find-links="/path/to/downloaded/dependencies" packagename

OR

pip install --no-index --find-links="/path/to/downloaded/packages" -r requirements.txt

Update

Also, to get all the packages installed on one system, you can export them all to requirement.txt that will be used to intall them on another system, we do this:

pip freeze > requirement.txt

Then, the requirement.txt can be used as above for download, or do this to install them from requirement.txt:

pip install -r requirement.txt

REFERENCE: pip installer

For Me I just wanted to see the error in my VBA application so in the function I created the below code..

Function Database_FileRpt
'-------------------------
On Error GoTo CleanFail
'-------------------------
'
' Create_DailyReport_Action and code


CleanFail:

'*************************************

MsgBox "********************" _

& vbCrLf & "Err.Number: " & Err.Number _

& vbCrLf & "Err.Description: " & Err.Description _

& vbCrLf & "Err.Source: " & Err.Source _

& vbCrLf & "********************" _

& vbCrLf & "...Exiting VBA Function: Database_FileRpt" _

& vbCrLf & "...Excel VBA Program Reset." _

, , "VBA Error Exception Raised!"

*************************************

 ' Note that the next line will reset the error object to 0, the variables 
above are used to remember the values
' so that the same error can be re-raised

Err.Clear

' *************************************

Resume CleanExit

CleanExit:

'cleanup code , if any, goes here. runs regardless of error state.

Exit Function  ' SUB  or Function    

End Function  ' end of Database_FileRpt

' ------------------

Use HTML's anchors:

Main Page:

<a href="sample.html#sushi">Sushi</a>
<a href="sample.html#bbq">BBQ</a>

Sample Page:

<div id='sushi'><a name='sushi'></a></div>
<div id='bbq'><a name='bbq'></a></div>

Express version:

"dependencies": {
    "body-parser": "^1.19.0",
    "express": "^4.17.1"
  }

Optional parameter are very much handy, you can declare and use them easily using express:

app.get('/api/v1/tours/:cId/:pId/:batchNo?', (req, res)=>{
    console.log("category Id: "+req.params.cId);
    console.log("product ID: "+req.params.pId);
    if (req.params.batchNo){
        console.log("Batch No: "+req.params.batchNo);
    }
});

In the above code batchNo is optional. Express will count it optional because after in URL construction, I gave a '?' symbol after batchNo '/:batchNo?'

Now I can call with only categoryId and productId or with all three-parameter.

http://127.0.0.1:3000/api/v1/tours/5/10
//or
http://127.0.0.1:3000/api/v1/tours/5/10/8987

I think it could be used for "retroactively forking"

If you have a Git repo, and have now decided that it should have forked another repo. Retroactively you would like it to become a fork, without disrupting the team that uses the repo by needing them to target a new repo.

But I could be wrong.

Upgrading to Snow Leopard won't solve the your primary problem of keeping PHP up to date. Apple doesn't always keep the third party software that it bundles up to date with OS updates. And relying on Apple to get you the bug fix / security update you need is asking for trouble.

Additionally, I would recommend installing through MacPorts (and doing the config necessary to use it instead of Apple's PHP) rather than try to upgrade the Apple supplied PHP in place. Anything you do to /usr/bin risks being overwritten by some future Apple update.

Java 8 Solution: I just had this problem and solved it by adding the remote site's certificate to my Java keystore. My solution was based on the solution at the myshittycode blog, which was based on a previous solution in mykong's blog. These blog article solutions boil down to downloading a program called InstallCert, which is a Java class you can run from the command line to obtain the certificate. You then proceed to install the certificate in Java's keystore.

The InstallCert Readme worked perfectly for me. You just need to run the following commands:

1. javac InstallCert.java
2. java InstallCert [host]:[port] (Enter the given list number of the certificate you want to add in the list when you run the command - likely just 1)
3. keytool -exportcert -alias [host]-1 -keystore jssecacerts -storepass changeit -file [host].cer
4. sudo keytool -importcert -alias [host] -keystore [path to system keystore] -storepass changeit -file [host].cer

See the referenced README file for an example if need be.

I use this here:

http://www.codeproject.com/KB/database/GenericParser.aspx

Last time I was looking for something like this I found it as an answer to this question.

For Development you can also deactivate the browser cache - In Chrome Dev Tools on the bottom right click on the gear and tick the option

Disable cache (while DevTools is open)

Update: In Firefox there is the same option in Debugger -> Settings -> Advanced Section (checked for Version 33)

Update 2: Although this option appears in Firefox some report it doesn't work. I suggest using firebug and following hadaytullah answer.

try

let toHashMap = (a,f) => a.reduce((a,c)=> (a[f(c)]=c,a),{});

let arr=[_x000D_
  {id:123, name:'naveen'}, _x000D_
  {id:345, name:"kumar"}_x000D_
];_x000D_
_x000D_
let fkey = o => o.id; // function changing object to string (key)_x000D_
_x000D_
let toHashMap = (a,f) => a.reduce((a,c)=> (a[f(c)]=c,a),{});_x000D_
_x000D_
console.log( toHashMap(arr,fkey) );_x000D_
_x000D_
// Adding to prototype is NOT recommented:_x000D_
//_x000D_
// Array.prototype.toHashMap = function(f) { return toHashMap(this,f) };_x000D_
// console.log( arr.toHashMap(fkey) );

I was also having this issue of "You have mail" coming up every time I started Terminal.

What I discovered is this.

Something I'd installed (not entirely sure what, but possibly a script or something associated with an Alfred Workflow [at a guess]) made a change to the OS X system to start presenting Terminal bash notifications. Prior to that, it appears Wordpress had attempted to use the Local Mail system to send a message. The message bounced, due to it having an invalid Recipient address. The bounced message then ended up in the local system mail inbox. So Terminal (bash) was then notifying me that "You have mail".

You can access the mail by simply using the command

mail

This launches you into Mail, and it will right away show you a list of messages that are stored there. If you want to see the content of the first message, use

t

This will show you the content of the first message, in full. You'll need to scroll down through the message to view it all, by hitting the down-arrow key.

If you want to jump to the end of the message, use the

spacebar

If you want to abort viewing the message, use

q 

To view the next message in the queue use

n

... assuming there's more than one message.

NOTE: You need to use these commands at the mail ? command prompt. They won't work whilst you are in the process of viewing a message. Hitting n whilst viewing a message will just cause an error message related to regular expressions. So, if in the midst of viewing a message, hit q to quit from that, or hit spacebar to jump to the end of the message, and then at the ? prompt, hit n.

Viewing the content of the messages in this way may help you identify what attempted to send the message(s).

You can also view a specific message by just inputting its number at the ? prompt. 3, for instance, will show you the content of the third message (if there are that many in there).

Use the d command (at the ? command prompt )

d [message number]

To delete each message when you are done looking at them. For example, d 2 will delete message number 2. Or you can delete a list of messages, such as d 1 2 5 7. Or you can delete a range of messages with (for example), d 3-10. You can find the message numbers in the list of messages mail shows you.

To delete all the messages, from the mail prompt (?) use the command d *.

As per a comment on this post, you will need to use q to quit mail, which also saves any changes.

If you'd like to see the mail all in one output, use this command at the bash prompt (i.e. not from within mail, but from your regular command prompt):

cat /var/mail/<username>

And, if you wish to delete the emails all in one hit, use this command

sudo rm /var/mail/<username>

In my particular case, there were a number of messages. It looks like the one was a returned message that bounced. It was sent by a local Wordpress installation. It was a notification for when user "Admin" (me) changed its password. Two additional messages where there. Both seemed to be to the same incident.

What I don't know, and can't answer for you either, is WHY I only recently started seeing this mail notification each time I open Terminal. The mails were generated a couple of months ago, and yet I only noticed this "you have mail" appearing in the last few weeks. I suspect it's the result of something a workflow I installed in Alfred, and that workflow using Terminal bash to provide notifications... or something along those lines.

Simply deleting the messages

If you have no interest in determining the source of the messages, and just wish to get rid of them, it may be easier to do so without using the mail command (which can be somewhat fiddly). As pointed out by a few other people, you can use this command instead:

sudo rm /var/mail/YOURUSERNAME

I was also facing same error when I was inserting the data into HIVE external table which was pointing to Elastic search cluster.

I replaced the older JAR elasticsearch-hadoop-2.0.0.RC1.jar to elasticsearch-hadoop-5.6.0.jar, and everything worked fine.

My Suggestion is please use the specific JAR as per the elastic search version. Don't use older JARs if you are using newer version of elastic search.

Thanks to this post Hive- Elasticsearch Write Operation #409

No there isn't. If you watch the http traffic and dump the page source you can see that there is an API below the covers, but it's not published nor available for 3rd party apps.

Check this link: https://developers.google.com/gsuite/products for updates.

However, there is an unofficial Python API under active development: https://github.com/kiwiz/gkeepapi

you can try

DocumentBuilder db = DocumentBuilderFactory.newInstance().newDocumentBuilder();
InputSource is = new InputSource();
is.setCharacterStream(new StringReader("<root><node1></node1></root>"));

Document doc = db.parse(is);

refer this http://www.java2s.com/Code/Java/XML/ParseanXMLstringUsingDOMandaStringReader.htm

Put the input in the label, and ditch the for attribute

<label>
  label1:
  <input type="text" id="id1" name="whatever" />
</label>

But of course, what if you want to style the text? Just use a span.

<label id="id1">
  <span>label1:</span>
  <input type="text" name="whatever" />
</label>

They both are indeed synonymous, However i found the small difference between them,

1)You cannot use Int32 while creatingenum

enum Test : Int32
{ XXX = 1   // gives you compilation error
}

enum Test : int
{ XXX = 1   // Works fine
}

2) Int32 comes under System declaration. if you remove using.System you will get compilation error but not in case for int

A Python 2+3 compatible solution is:

import sys

if sys.version_info[0] >= 3:
    from urllib.request import urlretrieve
else:
    # Not Python 3 - today, it is most likely to be Python 2
    # But note that this might need an update when Python 4
    # might be around one day
    from urllib import urlretrieve

# Get file from URL like this:
urlretrieve("http://www-scf.usc.edu/~chiso/oldspice/m-b1-hello.mp3")

(~~a == a) where a is the string.

"How can I directly (without saving the file on 2nd server) download the file from 1st server to client's machine?"

Just use the Client API and get the InputStream from the response

Client client = ClientBuilder.newClient();
String url = "...";
final InputStream responseStream = client.target(url).request().get(InputStream.class);

There are two flavors to get the InputStream. You can also use

Response response = client.target(url).request().get();
InputStream is = (InputStream)response.getEntity();

Which one is the more efficient? I'm not sure, but the returned InputStreams are different classes, so you may want to look into that if you care to.

From 2nd server I can get a ByteArrayOutputStream to get the file from 1st server, can I pass this stream further to the client using the REST service?

So most of the answers you'll see in the link provided by @GradyGCooper seem to favor the use of StreamingOutput. An example implementation might be something like

final InputStream responseStream = client.target(url).request().get(InputStream.class);
System.out.println(responseStream.getClass());
StreamingOutput output = new StreamingOutput() {
    @Override
    public void write(OutputStream out) throws IOException, WebApplicationException {  
        int length;
        byte[] buffer = new byte[1024];
        while((length = responseStream.read(buffer)) != -1) {
            out.write(buffer, 0, length);
        }
        out.flush();
        responseStream.close();
    }   
};
return Response.ok(output).header(
        "Content-Disposition", "attachment, filename=\"...\"").build();

But if we look at the source code for StreamingOutputProvider, you'll see in the writeTo, that it simply writes the data from one stream to another. So with our implementation above, we have to write twice.

How can we get only one write? Simple return the InputStream as the Response

final InputStream responseStream = client.target(url).request().get(InputStream.class);
return Response.ok(responseStream).header(
        "Content-Disposition", "attachment, filename=\"...\"").build();

If we look at the source code for InputStreamProvider, it simply delegates to ReadWriter.writeTo(in, out), which simply does what we did above in the StreamingOutput implementation

 public static void writeTo(InputStream in, OutputStream out) throws IOException {
    int read;
    final byte[] data = new byte[BUFFER_SIZE];
    while ((read = in.read(data)) != -1) {
        out.write(data, 0, read);
    }
}

Asides:

• Client objects are expensive resources. You may want to reuse the same Client for request. You can extract a WebTarget from the client for each request.

  WebTarget target = client.target(url);
  InputStream is = target.request().get(InputStream.class);
  

  I think the WebTarget can even be shared. I can't find anything in the Jersey 2.x documentation (only because it is a larger document, and I'm too lazy to scan through it right now :-), but in the Jersey 1.x documentation, it says the Client and WebResource (which is equivalent to WebTarget in 2.x) can be shared between threads. So I'm guessing Jersey 2.x would be the same. but you may want to confirm for yourself.

• You don't have to make use of the Client API. A download can be easily achieved with the java.net package APIs. But since you're already using Jersey, it doesn't hurt to use its APIs

• The above is assuming Jersey 2.x. For Jersey 1.x, a simple Google search should get you a bunch of hits for working with the API (or the documentation I linked to above)

UPDATE

I'm such a dufus. While the OP and I are contemplating ways to turn a ByteArrayOutputStream to an InputStream, I missed the simplest solution, which is simply to write a MessageBodyWriter for the ByteArrayOutputStream

import java.io.ByteArrayOutputStream;
import java.io.IOException;
import java.io.OutputStream;
import java.lang.annotation.Annotation;
import java.lang.reflect.Type;
import javax.ws.rs.WebApplicationException;
import javax.ws.rs.core.MediaType;
import javax.ws.rs.core.MultivaluedMap;
import javax.ws.rs.ext.MessageBodyWriter;
import javax.ws.rs.ext.Provider;

@Provider
public class OutputStreamWriter implements MessageBodyWriter<ByteArrayOutputStream> {

    @Override
    public boolean isWriteable(Class<?> type, Type genericType,
            Annotation[] annotations, MediaType mediaType) {
        return ByteArrayOutputStream.class == type;
    }

    @Override
    public long getSize(ByteArrayOutputStream t, Class<?> type, Type genericType,
            Annotation[] annotations, MediaType mediaType) {
        return -1;
    }

    @Override
    public void writeTo(ByteArrayOutputStream t, Class<?> type, Type genericType,
            Annotation[] annotations, MediaType mediaType,
            MultivaluedMap<String, Object> httpHeaders, OutputStream entityStream)
            throws IOException, WebApplicationException {
        t.writeTo(entityStream);
    }
}

Then we can simply return the ByteArrayOutputStream in the response

return Response.ok(baos).build();

D'OH!

UPDATE 2

Here are the tests I used (

Resource class

@Path("test")
public class TestResource {

    final String path = "some_150_mb_file";

    @GET
    @Produces(MediaType.APPLICATION_OCTET_STREAM)
    public Response doTest() throws Exception {
        InputStream is = new FileInputStream(path);
        ByteArrayOutputStream baos = new ByteArrayOutputStream();
        int len;
        byte[] buffer = new byte[4096];
        while ((len = is.read(buffer, 0, buffer.length)) != -1) {
            baos.write(buffer, 0, len);
        }
        System.out.println("Server size: " + baos.size());
        return Response.ok(baos).build();
    }
}

Client test

public class Main {
    public static void main(String[] args) throws Exception {
        Client client = ClientBuilder.newClient();
        String url = "http://localhost:8080/api/test";
        Response response = client.target(url).request().get();
        String location = "some_location";
        FileOutputStream out = new FileOutputStream(location);
        InputStream is = (InputStream)response.getEntity();
        int len = 0;
        byte[] buffer = new byte[4096];
        while((len = is.read(buffer)) != -1) {
            out.write(buffer, 0, len);
        }
        out.flush();
        out.close();
        is.close();
    }
}

UPDATE 3

So the final solution for this particular use case was for the OP to simply pass the OutputStream from the StreamingOutput's write method. Seems the third-party API, required a OutputStream as an argument.

StreamingOutput output = new StreamingOutput() {
    @Override
    public void write(OutputStream out) {
        thirdPartyApi.downloadFile(.., .., .., out);
    }
}
return Response.ok(output).build();

Not quite sure, but seems the reading/writing within the resource method, using ByteArrayOutputStream`, realized something into memory.

The point of the downloadFile method accepting an OutputStream is so that it can write the result directly to the OutputStream provided. For instance a FileOutputStream, if you wrote it to file, while the download is coming in, it would get directly streamed to the file.

It's not meant for us to keep a reference to the OutputStream, as you were trying to do with the baos, which is where the memory realization comes in.

So with the way that works, we are writing directly to the response stream provided for us. The method write doesn't actually get called until the writeTo method (in the MessageBodyWriter), where the OutputStream is passed to it.

You can get a better picture looking at the MessageBodyWriter I wrote. Basically in the writeTo method, replace the ByteArrayOutputStream with StreamingOutput, then inside the method, call streamingOutput.write(entityStream). You can see the link I provided in the earlier part of the answer, where I link to the StreamingOutputProvider. This is exactly what happens

I've been using this in an Xcode JNI project to recursively build my test classes:

find ${PROJECT_DIR} -name "*.java" -print | xargs javac -g -classpath ${BUILT_PRODUCTS_DIR} -d ${BUILT_PRODUCTS_DIR}

If the error is

Error: Node Sass version 5.0.0 is incompatible with ^4.0.0

Step1: stop the server

Step2: run commands are npm uninstall node-sass

Step3: check node-sass in package.json if node-sass is available in the file then again run Step2.

Step4: npm install [email protected] <=== run command

Step5: wait until the command successfully runs.

Step6: start-server using npm start

The way of dknaack does not work for me, I found this solution as well:

@Html.DropDownList("Chapters", ViewBag.Chapters as SelectList, 
                    "Select chapter", new { @onchange = "location = this.value;" })

where

@Html.DropDownList(controlName, ViewBag.property + cast, "Default value", @onchange event)

In the controller you can add:

DbModel db = new DbModel();    //entity model of Entity Framework

ViewBag.Chapters = new SelectList(db.T_Chapter, "Id", "Name");

You can use the centos-sclo-rh-testing repo to install GCC v7 without having to compile it forever, also enable V7 by default and let you switch between different versions if required.

sudo yum install -y yum-utils centos-release-scl;
sudo yum -y --enablerepo=centos-sclo-rh-testing install devtoolset-7-gcc;
echo "source /opt/rh/devtoolset-7/enable" | sudo tee -a /etc/profile;
source /opt/rh/devtoolset-7/enable;
gcc --version;

For MS SQL you can do this.

    select  CAST(DATEPART(MONTH, DateTyme) as VARCHAR) +'/'+ 
CAST(DATEPART(YEAR, DateTyme) as VARCHAR) as 'Date' from #temp
    group by Name, CAST(DATEPART(MONTH, DateTyme) as VARCHAR) +'/'+
 CAST(DATEPART(YEAR, DateTyme) as VARCHAR) 

I know this is an old question, but we were faced with the same problem when trying to inject Strings. So we invented a JUnit5/Mockito extension that does exactly what you want: https://github.com/exabrial/mockito-object-injection

EDIT:

@InjectionMap
 private Map<String, Object> injectionMap = new HashMap<>();

 @BeforeEach
 public void beforeEach() throws Exception {
  injectionMap.put("securityEnabled", Boolean.TRUE);
 }

 @AfterEach
 public void afterEach() throws Exception {
  injectionMap.clear();
 }

Use the below code to find the count of number of matches that the regex finds in your input

        Pattern p = Pattern.compile(regex, Pattern.MULTILINE | Pattern.DOTALL);// "regex" here indicates your predefined regex.
        Matcher m = p.matcher(pattern); // "pattern" indicates your string to match the pattern against with
        boolean b = m.matches();
        if(b)
        count++;
        while (m.find())
        count++;

This is a generalized code not specific one though, tailor it to suit your need

Please feel free to correct me if there is any mistake.

jQuery .removeClass() documentation.

One or more CSS classes to remove from the elements, these are separated by spaces.

libcurl also provides CURLOPT_COOKIELIST which extracts all known cookies. All you need is to make sure the PHP/CURL binding can use it.

I like the comparator class SortIgnoreCase, but would have used this

public class SortIgnoreCase implements Comparator<String> {
    public int compare(String s1, String s2) {
        return s1.compareToIgnoreCase(s2);    // Cleaner :)
    }
}

Simple way on macOS e.g. installed via homebrew

$ ls -l $(which kafka-topics)
/usr/local/bin/kafka-topics -> ../Cellar/kafka/0.11.0.1/bin/kafka-topics

I ran into the same problem with VMWare workstation with Ubuntu guest, turns out VmWare doesn't support scrolling back up from the server view. What I did was to install x GUI, then run xterm from there. For some reason it runs the same, but lets you scroll the normal ways. Hope this helps future readers in VmWare virtual boxes.

To be able to inspect any element do the following. This should work even if it's hard to duplicate the hover state:

• Run the following javascript in the console. This will break into the debugger in 5 seconds.

  setTimeout(function(){debugger;}, 5000)

• Go show your element (by hovering or however) and wait until Chrome breaks into the Debugger.

• Now click on the Elements tab in the Chrome Inspector, and you can look for your element there.
• You may also be able to click on the Find Element icon (looks like a magnifying glass) and Chrome will let you go and inspect and find your element on the page by right clicking on it, then choosing Inspect Element

Note that this approach is a slight variation to this other great answer on this page.

They're generally stored on the server. Where they're stored is up to you as the developer. You can use the session.save_handler configuration variable and the session_set_save_handler to control how sessions get saved on the server. The default save method is to save sessions to files. Where they get saved is controlled by the session.save_path variable.

There is no direct way. You either export XML and then right an XSLT to format it properly (this is the hard way). An easier way is to write multiple reports with no explicit page breaks so each exports into one sheet only in excel and then write a script that would merge for you. Either way it requires a postprocessing step.

You shouldn't measure time in interval function. Instead just save time when timer was started and measure difference when timer was stopped/paused. Use setInterval only to update displayed value. So there is no need to pause timer and you will get best possible accuracy in this way.

Maybe It can be perfect example for Android, For example:

void setWaitScreen(boolean set) {
    findViewById(R.id.screen_main).setVisibility(
            set ? View.GONE : View.VISIBLE);
    findViewById(R.id.screen_wait).setVisibility(
            set ? View.VISIBLE : View.GONE);
}

The resources you put in src/main/resources will be copied during the build process to target/classes which can be accessed using:

...this.getClass().getResourceAsStream("/config.txt");

i think best approach is to make a common method and call in hover and click events.

On my 2012 MacBook Air (Intel Core i5-3427U, 2x 1.8 GHz, 2.8 GHz Turbo), SHA-1 is slightly faster than MD5 (using OpenSSL in 64-bit mode):

$ openssl speed md5 sha1
OpenSSL 0.9.8r 8 Feb 2011
The 'numbers' are in 1000s of bytes per second processed.
type             16 bytes     64 bytes    256 bytes   1024 bytes   8192 bytes
md5              30055.02k    94158.96k   219602.97k   329008.21k   384150.47k
sha1             31261.12k    95676.48k   224357.36k   332756.21k   396864.62k

Update: 10 months later with OS X 10.9, SHA-1 got slower on the same machine:

$ openssl speed md5 sha1
OpenSSL 0.9.8y 5 Feb 2013
The 'numbers' are in 1000s of bytes per second processed.
type             16 bytes     64 bytes    256 bytes   1024 bytes   8192 bytes
md5              36277.35k   106558.04k   234680.17k   334469.33k   381756.70k
sha1             35453.52k    99530.85k   206635.24k   281695.48k   313881.86k

Second update: On OS X 10.10, SHA-1 speed is back to the 10.8 level:

$ openssl speed md5 sha1
OpenSSL 0.9.8zc 15 Oct 2014
The 'numbers' are in 1000s of bytes per second processed.
type             16 bytes     64 bytes    256 bytes   1024 bytes   8192 bytes
md5              35391.50k   104905.27k   229872.93k   330506.91k   382791.75k
sha1             38054.09k   110332.44k   238198.72k   340007.12k   387137.77k

Third update: OS X 10.14 with LibreSSL is a lot faster (still on the same machine). SHA-1 still comes out on top:

$ openssl speed md5 sha1
LibreSSL 2.6.5
The 'numbers' are in 1000s of bytes per second processed.
type             16 bytes     64 bytes    256 bytes   1024 bytes   8192 bytes
md5              43128.00k   131797.91k   304661.16k   453120.00k   526789.29k
sha1             55598.35k   157916.03k   343214.08k   489092.34k   570668.37k

Not sure I understand the question correctly.

From what I gather, you want to be able to assign a value to Domain if it is null and also what to check if $args2 is supplied and according to the value, execute a certain code?

I changed the code to reassemble the assumptions made above.

Function DoStuff($computername, $arg2, $domain)
{
    if($domain -ne $null)
    {
        $domain = "Domain1"
    }

    if($arg2 -eq $null)
    {
    }
    else
    {
    }
}

DoStuff -computername "Test" -arg2 "" -domain "Domain2"
DoStuff -computername "Test" -arg2 "Test"  -domain ""
DoStuff -computername "Test" -domain "Domain2"
DoStuff -computername "Test" -arg2 "Domain2"

Did that help?

Printing a monospaced font at default sizes is (on A4 paper) 80 columns by 66 lines.

You can't do it with only Javascript. You'll need some server-side code (PHP, in your case) that serves as a proxy between the DB and the client-side code.

Similar approach to @Samuel-bergström:

• Download Fontawesome SVG https://github.com/FortAwesome/Font-Awesome/blob/master/src/assets/font-awesome/fonts/fontawesome-webfont.svg
• Download FontForge http://fontforge.github.io/en-US/downloads/
• Download Inkscape
• Open Inskscape and create a single layer shape as your new font icon
• Save SVG file, Close Inkscape
• Open FontForge (If you have multiple monitors, use Windows-LeftArrow, to reposition as they have strange SWING java windows that go off monitor, and have modal problems with popups - I had to check my task bar for some)
• File | Open fontawesome-webfont.svg
• File | Import
• Scroll to the bottom, Right Click on Icon | Glyph Info
• Update Glyph Name to uniFXXX (XXX is something like 501, a higher number than the highest Unicode used in v4.5 of FontAwesome)
• Unicode Vlaue U+fXXX
• Click OK
• File | Save
• File | Generate Fonts ...
• Close FontForge
• Open your web project
• Copy your font files to the (in my project) "\Content\fonts\" folder.
• Edit "\Content\styles\fa\path.less" to be like:

@font-face {_x000D_
      font-family: 'FontAwesome';_x000D_
      //src: url('@{fa-font-path}/fontawesome-webfont.eot?v=@{fa-version}');_x000D_
      src: _x000D_
     //url('@{fa-font-path}/fontawesome-webfont.eot?#iefix&v=@{fa-version}') format('embedded-opentype'),_x000D_
        //url('@{fa-font-path}/fontawesome-webfont.woff2?v=@{fa-version}') format('woff2'),_x000D_
        url('@{fa-font-path}/fontawesomeregular.woff?v=@{fa-version}') format('woff'),_x000D_
        url('@{fa-font-path}/fontawesomeregular.ttf?v=@{fa-version}') format('truetype'),_x000D_
        url('@{fa-font-path}/fontawesomeregular.svg?v=@{fa-version}#fontawesomeregular') format('svg');_x000D_
    //  src: url('@{fa-font-path}/FontAwesome.otf') format('opentype'); // used when developing fonts_x000D_
      font-weight: normal;_x000D_
      font-style: normal;_x000D_
    }

I know it may be 'controversial' to comment out other file types, but happy to hear how to generate .eot or .otf files in the comments.

• and finally, as Samuel mentions, update your CSS/LESS with:

  .fa-XXX:before { content: "\f501"; }

Simply put, from the point of view of the user, a static method either uses no variables at all or all of the variables it uses are local to the method or they are static fields. Defining a method as static gives a slight performance benefit.

Sorry for replying on an older question, but I would like to clarify the last question.

You use a "get" method for your form. When the name of your input-field is "g", it will make a URL like this:

https://www.google.com/search?g=[value from input-field]

But when you search with google, you notice the following URL:

https://www.google.nl/search?q=google+search+bar

Google uses the "q" Querystring variable as it's search-query. Therefor, renaming your field from "g" to "q" solved the problem.

Using of NSHTMLTextDocumentType is slow and it is hard to control styles. I suggest you to try my library which is called Atributika. It has its own very fast HTML parser. Also you can have any tag names and define any style for them.

Example:

let str = "<strong>Hello</strong> World!".style(tags:
    Style("strong").font(.boldSystemFont(ofSize: 15))).attributedString

label.attributedText = str

You can find it here https://github.com/psharanda/Atributika

For Intellij go to View > Tool Windows > Gradle > Refresh All Projects (the blue circular arrows at the top of the Gradle window.

NumberFormatException invoke when you ll try to convert inavlid String for eg:"abc" value to integer..

this is valid string is eg"123". in your case split by space..

split(" "); will split line by " " by space..

Try this code

    Button btn = new Button(YourActivity.this);
    btn.setGravity(Gravity.CENTER | Gravity.TOP);
    btn.setText("some text");

or

    btn.setGravity(Gravity.TOP);

As @ashishduh mentioned above, using android:autoLink="phone is also a good solution. But this option comes with one drawback, it doesn't work with all phone number lengths. For instance, a phone number of 11 numbers won't work with this option. The solution is to prefix your phone numbers with the country code.

Example:

08034448845 won't work

but +2348034448845 will

I will show visually the problem, using the great example from James answer and adding the alternative solution.

When you do the follow query, without the FETCH:

Select e from Employee e 
join e.phones p 
where p.areaCode = '613'

You will have the follow results from Employee as you expected:

But when you add the FETCH word on JOIN, this is what happens:

The generated SQL is the same for the two queries, but the Hibernate removes on memory the 416 register when you use WHERE on the FETCH join.

So, to bring all phones and apply the WHERE correctly, you need to have two JOINs: one for the WHERE and another for the FETCH. Like:

Select e from Employee e 
join e.phones p 
join fetch e.phones      //no alias, to not commit the mistake
where p.areaCode = '613'

Here I am adding my JSfiddle example for stopPropagation vs stopImmediatePropagation. JSFIDDLE

let stopProp = document.getElementById('stopPropagation');_x000D_
let stopImmediate = document.getElementById('stopImmediatebtn');_x000D_
let defaultbtn = document.getElementById("defalut-btn");_x000D_
_x000D_
_x000D_
stopProp.addEventListener("click", function(event){_x000D_
 event.stopPropagation();_x000D_
  console.log('stopPropagation..')_x000D_
  _x000D_
})_x000D_
stopProp.addEventListener("click", function(event){_x000D_
  console.log('AnotherClick')_x000D_
  _x000D_
})_x000D_
stopImmediate.addEventListener("click", function(event){_x000D_
  event.stopImmediatePropagation();_x000D_
    console.log('stopimmediate')_x000D_
})_x000D_
_x000D_
stopImmediate.addEventListener("click", function(event){_x000D_
    console.log('ImmediateStop Another event wont work')_x000D_
})_x000D_
_x000D_
defaultbtn.addEventListener("click", function(event){_x000D_
    alert("Default Clik");_x000D_
})_x000D_
defaultbtn.addEventListener("click", function(event){_x000D_
    console.log("Second event defined will also work same time...")_x000D_
})

div{_x000D_
  margin: 10px;_x000D_
}

<p>_x000D_
The simple example for event.stopPropagation and stopImmediatePropagation?_x000D_
Please open console to view the results and click both button._x000D_
</p>_x000D_
<div >_x000D_
<button id="stopPropagation">_x000D_
stopPropagation-Button_x000D_
</button>_x000D_
</div>_x000D_
<div  id="grand-div">_x000D_
  <div class="new" id="parent-div">_x000D_
    <button id="stopImmediatebtn">_x000D_
    StopImmediate_x000D_
    </button>_x000D_
  </div>_x000D_
</div>_x000D_
<div>_x000D_
<button id="defalut-btn">_x000D_
Normat Button_x000D_
</button>_x000D_
</div>

You can use numpy.delete as follows:

import numpy as np
a = ['a', 'l', 3.14, 42, 'u']
I = [0, 2]
np.delete(a, I).tolist()
# Returns: ['l', '42', 'u']

If you don't mind ending up with a numpy array at the end, you can leave out the .tolist(). You should see some pretty major speed improvements, too, making this a more scalable solution. I haven't benchmarked it, but numpy operations are compiled code written in either C or Fortran.

Use, CollectionUtils.isEmpty(Collection coll) method which is Null-safe check if the specified collection is empty.

for this import org.apache.commons.collections.CollectionUtils.

Maven dependency

<dependency>
    <groupId>org.apache.commons</groupId>
    <artifactId>commons-collections4</artifactId>
    <version>4.0</version>
</dependency>

I'll throw this out there and then duck. The usual reason to check if a file exists is to avoid an error when attempting to open it. How about using the error handler to deal with that:

Function openFileTest(filePathName As String, ByRef wkBook As Workbook, _
                      errorHandlingMethod As Long) As Boolean
'Returns True if filePathName is successfully opened,
'        False otherwise.
   Dim errorNum As Long

'***************************************************************************
'  Open the file or determine that it doesn't exist.
   On Error Resume Next:
   Set wkBook = Workbooks.Open(fileName:=filePathName)
   If Err.Number <> 0 Then
      errorNum = Err.Number
      'Error while attempting to open the file. Maybe it doesn't exist?
      If Err.Number = 1004 Then
'***************************************************************************
      'File doesn't exist.
         'Better clear the error and point to the error handler before moving on.
         Err.Clear
         On Error GoTo OPENFILETEST_FAIL:
         '[Clever code here to cope with non-existant file]
         '...
         'If the problem could not be resolved, invoke the error handler.
         Err.Raise errorNum
      Else
         'No idea what the error is, but it's not due to a non-existant file
         'Invoke the error handler.
         Err.Clear
         On Error GoTo OPENFILETEST_FAIL:
         Err.Raise errorNum
      End If
   End If

   'Either the file was successfully opened or the problem was resolved.
   openFileTest = True
   Exit Function

OPENFILETEST_FAIL:
   errorNum = Err.Number
   'Presumabley the problem is not a non-existant file, so it's
   'some other error. Not sure what this would be, so...
   If errorHandlingMethod < 2 Then
      'The easy out is to clear the error, reset to the default error handler,
      'and raise the error number again.
      'This will immediately cause the code to terminate with VBA's standard
      'run time error Message box:
      errorNum = Err.Number
      Err.Clear
      On Error GoTo 0
      Err.Raise errorNum
      Exit Function

   ElseIf errorHandlingMethod = 2 Then
      'Easier debugging, generate a more informative message box, then terminate:
      MsgBox "" _
           & "Error while opening workbook." _
           & "PathName: " & filePathName & vbCrLf _
           & "Error " & errorNum & ": " & Err.Description & vbCrLf _
           , vbExclamation _
           , "Failure in function OpenFile(), IO Module"
      End

   Else
      'The calling function is ok with a false result. That is the point
      'of returning a boolean, after all.
      openFileTest = False
      Exit Function
   End If

End Function 'openFileTest()

Android does not support MySQL out of the box. The "normal" way to access your database would be to put a Restful server in front of it and use the HTTPS protocol to connect to the Restful front end.

Have a look at ContentProvider. It is normally used to access a local database (SQLite) but it can be used to get data from any data store.

I do recommend that you look at having a local copy of all/some of your websites data locally, that way your app will still work when the Android device hasn't got a connection. If you go down this route then a service can be used to keep the two databases in sync.

Short Answer

Yes.

Explanation

It is a good practice since an element can be a part of different groups, and you may want specific elements to be a part of more than one group. The element can hold an infinite number of classes in HTML5, while in HTML4 you are limited by a specific length.

The following example will show you the use of multiple classes.

The first class makes the text color red.

The second class makes the background-color blue.

See how the DOM Element with multiple classes will behave, it will wear both CSS statements at the same time.

Result: multiple CSS statements in different classes will stack up.

You can read more about CSS Specificity.

CSS

.class1 {
    color:red;
}

.class2 {
    background-color:blue;
}

HTML

<div class="class1">text 1</div>
<div class="class2">text 2</div>
<div class="class1 class2">text 3</div>

Live demo

For all Kotlin Users

You can create an Extension like following:

fun FragmentActivity.showCustomToast(message : String,color : Int) {
 val toastView = findViewById<TextView>(R.id.toast_view)
 toastView.text = message
 toastView.visibility = View.VISIBLE
 toastView.setBackgroundColor(color)

 // create a daemon thread
 val timer = Timer("schedule", true)

 // schedule a single event
 timer.schedule(2000) {
    runOnUiThread { toastView.visibility = View.GONE }
 }
}

IF NOT USING THE SHORT HAND VERSION: Make sure the animation-fill-mode: forwards is AFTER the animation declaration or it will not work...

animation-fill-mode: forwards;
animation-name: appear;
animation-duration: 1s;
animation-delay: 1s;

vs

animation-name: appear;
animation-duration: 1s;
animation-fill-mode: forwards;
animation-delay: 1s;

select name
  from DBname.sys.tables
 where name like '%xxx%'
   and is_ms_shipped = 0; -- << comment out if you really want to see them

thanks for this post. I want to add something that can be useful.

For IE, it is good to use

object["property"] = value;

syntax because some special words in IE can give you an error.

An example:

object.class = 'value';

this fails in IE, because "class" is a special word. I spent several hours with this.

In the end after trying many of these complicated solutions as I only needed to save/restore a single value in my Fragment (the content of an EditText), and although it might not be the most elegant solution, creating a SharedPreference and storing my state there worked for me

Like others already wrote, in short:

shared project
reuse on the code (file) level, allowing for folder structure and resources as well

pcl
reuse on the assembly level

What was mostly missing from answers here for me is the info on reduced functionality available in a PCL: as an example you have limited file operations (I was missing a lot of File.IO fuctionality in a Xamarin cross-platform project).

In more detail
shared project:
+ Can use #if when targeting multiple platforms (e. g. Xamarin iOS, Android, WinPhone)
+ All framework functionality available for each target project (though has to be conditionally compiled)
o Integrates at compile time
- Slightly larger size of resulting assemblies
- Needs Visual Studio 2013 Update 2 or higher

pcl:
+ generates a shared assembly
+ usable with older versions of Visual Studio (pre-2013 Update 2)
o dynamically linked
- lmited functionality (subset of all projects it is being referenced by)

If you have the choice, I would recommend going for shared project, it is generally more flexible and more powerful. If you know your requirements in advance and a PCL can fulfill them, you might go that route as well. PCL also enforces clearer separation by not allowing you to write platform-specific code (which might not be a good choice to be put into a shared assembly in the first place).

Main focus of both is when you target multiple platforms, else you would normally use just an ordinary library/dll project.

to modify more css property values, you may use css object. such as:

hilight_css = {"border-bottom-color":"red", 
               "background-color":"#000"};
$(".msg").css(hilight_css);

but if the modification code is bloated. you should consider the approach March suggested. do it this way:

first, in your css file:

.hilight { border-bottom-color:red; background-color:#000; }
.msg { /* something to make it notifiable */ }

second, in your js code:

$(".msg").addClass("hilight");
// to bring message block to normal
$(".hilight").removeClass("hilight");

if ie 6 is not an issue, you can chain these classes to have more specific selectors.

I don't know that you can do it in Chrome outside of Windows -- some Googling shows that Chrome (and therefore possibly Chromium) might respond well to a certain registry hack.

However, if you're just looking for a simple solution without modifying your code base, have you considered Firefox? In the about:config you can search for "network.http.max" and there are a few values in there that are definitely worth looking at.

Also, for a device that will not be moving (i.e. it is mounted in a fixed location) you should consider not using Wi-Fi (even a Home-Plug would be a step up as far as latency / stability / dropped connections go).

grep -rl $oldstring . | xargs sed -i "s/$oldstring/$newstring/g"

As vim's own help on set background says, "Setting this option does not change the background color, it tells Vim what the background color looks like. For changing the background color, see |:hi-normal|."

For example

:highlight Normal ctermfg=grey ctermbg=darkblue

will write in white on blue on your color terminal.

You can create an extension method for HtmlHelper to simplify the code in your CSHTML file. You could replace your tags with a method like this:

// Sample usage in CSHTML
@Html.ActionImage("Edit", new { id = MyId }, "~/Content/Images/Image.bmp", "Edit")

Here is a sample extension method for the code above:

// Extension method
public static MvcHtmlString ActionImage(this HtmlHelper html, string action, object routeValues, string imagePath, string alt)
{
    var url = new UrlHelper(html.ViewContext.RequestContext);

    // build the <img> tag
    var imgBuilder = new TagBuilder("img");
    imgBuilder.MergeAttribute("src", url.Content(imagePath));
    imgBuilder.MergeAttribute("alt", alt);
    string imgHtml = imgBuilder.ToString(TagRenderMode.SelfClosing);

    // build the <a> tag
    var anchorBuilder = new TagBuilder("a");
    anchorBuilder.MergeAttribute("href", url.Action(action, routeValues));
    anchorBuilder.InnerHtml = imgHtml; // include the <img> tag inside
    string anchorHtml = anchorBuilder.ToString(TagRenderMode.Normal);

    return MvcHtmlString.Create(anchorHtml);
}

If only to 0 then you can use memset:

int* a = new int[6];

memset(a, 0, 6*sizeof(int));

You can simply use the jQuery Validate plugin as follows.

jQuery:

$(document).ready(function () {

    $('#myform').validate({ // initialize the plugin
        rules: {
            field1: {
                required: true,
                email: true
            },
            field2: {
                required: true,
                minlength: 5
            }
        }
    });

});

HTML:

<form id="myform">
    <input type="text" name="field1" />
    <input type="text" name="field2" />
    <input type="submit" />
</form>

DEMO: http://jsfiddle.net/xs5vrrso/

Options: http://jqueryvalidation.org/validate

Methods: http://jqueryvalidation.org/category/plugin/

Standard Rules: http://jqueryvalidation.org/category/methods/

Optional Rules available with the additional-methods.js file:

maxWords
minWords
rangeWords
letterswithbasicpunc
alphanumeric
lettersonly
nowhitespace
ziprange
zipcodeUS
integer
vinUS
dateITA
dateNL
time
time12h
phoneUS
phoneUK
mobileUK
phonesUK
postcodeUK
strippedminlength
email2 (optional TLD)
url2 (optional TLD)
creditcardtypes
ipv4
ipv6
pattern
require_from_group
skip_or_fill_minimum
accept
extension

I find this type of approach works for me:

Product     ProductDetail        Country
=========   ==================   =========
ProductId   ProductDetailId      CountryId
- etc -     ProductId            CountryName
            CountryId            Language
            ProductName          - etc -
            ProductDescription
            - etc -

The ProductDetail table holds all the translations (for product name, description etc..) in the languages you want to support. Depending on your app's requirements, you may wish to break the Country table down to use regional languages too.

GitHub Gists

To gist or not to gist. That is the $64 question ...

GitHub Gists are Single ( or, multiple ) Simple Markdown Files with repo-like qualities that can be forked or cloned ( if public ).

Otherwise, not if private.

Kinda like a fancy scratch pad that can be shared.

Similar to this comment scratch pad that I am typing on now, but a bit more elaborate.

Whereas, an official, full GitHub repo is a full blown repository of source code src, supporting documents ( markdown or html, or both ) docs or root, images png, ico, svg, and a config.sys file for running Yaml variables hosted on a Jekyll server.

Does a simple Gist file support Yaml front matter?

Me thinks not.

From the official GitHub Gist documentation ...

The gist editor is powered by CodeMirror.

However, you can copy a public Gist ( or, a private Gist if the owner has granted you access via a link to the private Gist ) ...

And, you can then embed that public Gist into an "official" repo page.md using Visual Studio Code, as follows:

"You can embed a gist in any text field that supports Javascript, such as a blog post."

"To get the embed code, click the clipboard icon next to the Embed URL button of a gist."

Now, that's a cool feature.

Makes me want to search ( discover ) other peoples' gists, or OPG and incorporate their "public" work into my full-blown working repos.

"You can discover the PUBLIC gists others have created by going to the gist home page and clicking on the link ...

All Gists{:title='Click to Review the Discover Feature at GitHub Gists'}{:target='_blank'}."

Caveat. No support for Liquid tags at GitHub Gist.

I suppose if I do find something beneficial, I can always ping-back, or cite that source if I do use the work in my full-blown working repos.

Where is the implicit license posted for all gists made public by their authors?

Robert

P.S. This is a good comment. I think I will turn this into a gist and make it publically searchable over at GitHub Gists.

Note. When embedding the <script></script> html tag within the body of a Markdown (.md) file, you may get a warning "MD033" from your linter.

This should not, however, affect the rendering of the data ( src ) called from within the script tag.

To change the default warning flag to accommodate the called contents of a script tag from within Visual Studio Code, add an entry to the Markdownlint Configuration Object within the User Settings Json file, as follows:

// Begin Markdownlint Configuration Object
"markdownlint.config": {
  "MD013": false,
  "MD033": {"allowed_elements": ["script"]}
}// End Markdownlint Configuration Object

Note. Solution derived from GitHub Commit by David Anson

hi array is one object so it null type or blank

   <?php
        if($error!=null)
            echo "array is blank or null or not array";
    //OR
       if(!empty($error))
           echo "array is blank or null or not array";
    //OR
     if(is_array($error))
           echo "array is blank or null or not array";
   ?>

A one liner...

In[1]: import numpy as np

In[2]: sigmoid=lambda x: 1 / (1 + np.exp(-x))

In[3]: sigmoid(3)
Out[3]: 0.9525741268224334

Throwing my version into the pile here:

import argparse

parser = argparse.ArgumentParser()
args = parser.parse_args()
if not vars(args):
    parser.print_help()
    parser.exit(1)

You may notice the parser.exit - I mainly do it like that because it saves an import line if that was the only reason for sys in the file...

Disable Access Protection in Antivirus,

I faced same issue at last found the below logs from antivirus.

Blocked by Access Protection rule NT AUTHORITY\SYSTEM C:\WINDOWS\SYSTEM32\SVCHOST.EXE C:\PROGRAM FILES (X86)\MCAFEE\VIRUSSCAN ENTERPRISE\MCCONSOL.EXE Common Standard Protection:Prevent termination of McAfee processes Action blocked : Terminate Blocked by port blocking rule C:\USERS\username\APPDATA\LOCAL\PROGRAMS\PYTHON\PYTHON37-32\PYTHON.EXE Anti-virus Standard Protection:Prevent mass mailing worms from sending mail

You can use Id of the field as well

$('#checkbox1').change(function() {
   if($(this).is(":checked")) {
      //'checked' event code
      return;
   }
   //'unchecked' event code
});

Just in case anybody finds this, there's a nicer alternative that's not documented (I tripped over it after searching for hours, and finally found it in the bug list for the Android SDK itself). You CAN include raw HTML in strings.xml, as long as you wrap it in

<![CDATA[ ...raw html... ]]>

Example:

<string name="nice_html">
<![CDATA[
<p>This is a html-formatted string with <b>bold</b> and <i>italic</i> text</p>
<p>This is another paragraph of the same string.</p>
]]>
</string>

Then, in your code:

TextView foo = (TextView)findViewById(R.id.foo);
foo.setText(Html.fromHtml(getString(R.string.nice_html)));

IMHO, this is several orders of magnitude nicer to work with :-)

Use a backslash as such

"From time to \"time\"";

Backslashes are used in PHP to escape special characters within quotes. As PHP does not distinguish between strings and characters, you could also use this

'From time to "time"';

The difference between single and double quotes is that double quotes allows for string interpolation, meaning that you can reference variables inline in the string and their values will be evaluated in the string like such

$name = 'Chris';
$greeting = "Hello my name is $name"; //equals "Hello my name is Chris"

As per your last edit of your question I think the easiest thing you may be able to do that this point is to use a 'heredoc.' They aren't commonly used and honestly I wouldn't normally recommend it but if you want a fast way to get this wall of text in to a single string. The syntax can be found here: http://www.php.net/manual/en/language.types.string.php#language.types.string.syntax.heredoc and here is an example:

$someVar = "hello";
$someOtherVar = "goodbye";
$heredoc = <<<term
This is a long line of text that include variables such as $someVar
and additionally some other variable $someOtherVar. It also supports having
'single quotes' and "double quotes" without terminating the string itself.
heredocs have additional functionality that most likely falls outside
the scope of what you aim to accomplish.
term;

I encountered the similar problem after installing new software. In my case, the problem was solved by: (1) restoring .p2 subdirectory under my home directory; and (2) editing eclipse.init file to have the updated java directory.

you should add plug in to your local setting of firefox in your user home

 vladimir@shinsengumi ~/.mozilla/plugins $ pwd
 /home/vladimir/.mozilla/plugins 
 vladimir@shinsengumi ~/.mozilla/plugins $ ls -ltr
 lrwxrwxrwx 1 vladimir vladimir 60 Jan  1 23:06 libnpjp2.so -> /home/vladimir/Install/jdk1.6.0_32/jre/lib/amd64/libnpjp2.so

1.this is my answer for your problem.

.ModalCarrot::before {
content:'';
background: url('blackCarrot.png'); /*url of image*/
height: 16px; /*height of image*/
width: 33px;  /*width of image*/
position: absolute;
}

Well, I've received this error today on Windows 8 64-bit out of the blue, for the first time, and it turns out my my.ini had been reset, and the bin/mysqld file had been deleted, among other items in the "Program Files/MySQL/MySQL Server 5.6" folder.

To fix it, I had to run the MySQL installer again, installing only the server, and copy a recent version of the my.ini file from "ProgramData/MySQL/MySQL Server 5.6", named my_2014-03-28T15-51-20.ini in my case (don't know how or why that got copied there so recently) back into "Program Files/MySQL/MySQL Server 5.6".

The only change to the system since MySQL worked was the installation of Native Instruments' Traktor 2 and a Traktor Audio 2 sound card, which really shouldn't have caused this problem, and no one else has used the system besides me. If anyone has a clue, it would be kind of you to comment to prevent this for me and anyone else who has encountered this.

I believe best practice these days is H/5 * * * *, which means every 5 minutes with a hashing factor to avoid all jobs starting at EXACTLY the same time.

Fiddle to your heart's content

HTML

<div>
<a tabindex="1" class="testA">Test A</a> | <a tabindex="2" class="testB">Test B</a>
<div class="hiddendiv" id="testA">1</div>
<div class="hiddendiv" id="testB">2</div>
</div>

CSS

.hiddendiv {display: none; }
.testA:focus ~ #testA {display: block; }
.testB:focus ~ #testB {display: block; }

Benefits

You can put your menu links horizontally = one after the other in HTML code, and then you can put all the content one after another in the HTML code, after the menu.

In other words - other solutions offer an accordion approach where you click a link and the content appears immediately after the link. The next link then appears after that content.

With this approach you don't get the accordion effect. Rather, all links remain in a fixed position and clicking any link simply updates the displayed content. There is also no limitation on content height.

How it works

In your HTML, you first have a DIV. Everything else sits inside this DIV. This is important - it means every element in your solution (in this case, A for links, and DIV for content), is a sibling to every other element.

Secondly, the anchor tags (A) have a tabindex property. This makes them clickable and therefore they can get focus. We need that for the CSS to work. These could equally be DIVs but I like using A for links - and they'll be styled like my other anchors.

Third, each menu item has a unique class name. This is so that in the CSS we can identify each menu item individually.

Fourth, every content item is a DIV, and has the class="hiddendiv". However each each content item has a unique id.

In your CSS, we set all .hiddendiv elements to display:none; - that is, we hide them all.

Secondly, for each menu item we have a line of CSS. This means if you add more menu items (ie. and more hidden content), you will have to update your CSS, yes.

Third, the CSS is saying that when .testA gets focus (.testA:focus) then the corresponding DIV, identified by ID (#testA) should be displayed.

Last, when I just said "the corresponding DIV", the trick here is the tilde character (~) - this selector will select a sibling element, and it does not have to be the very next element, that matches the selector which, in this case, is the unique ID value (#testA).

It is this tilde that makes this solution different than others offered and this lets you simply update some "display panel" with different content, based on clicking one of those links, and you are not as constrained when it comes to where/how you organise your HTML. All you need, though, is to ensure your hidden DIVs are contained within the same parent element as your clickable links.

Season to taste.

StackOverflowError is to the stack as OutOfMemoryError is to the heap.

Unbounded recursive calls result in stack space being used up.

The following example produces StackOverflowError:

class  StackOverflowDemo
{
    public static void unboundedRecursiveCall() {
     unboundedRecursiveCall();
    }

    public static void main(String[] args) 
    {
        unboundedRecursiveCall();
    }
}

StackOverflowError is avoidable if recursive calls are bounded to prevent the aggregate total of incomplete in-memory calls (in bytes) from exceeding the stack size (in bytes).

Ideally you should use StartWith or EndWith.

Here is an example:

DataContext  dc = new DCGeneral();
List<Person> lstPerson= dc.GetTable<Person>().StartWith(c=> c.strNombre).ToList();

return lstPerson;

Unless I grossly misunderstood your question, move overflow-x:scroll from .search-table to .search-table-outter.

http://jsfiddle.net/ZXnqM/4/

.search-table-outter {border:2px solid red; overflow-x:scroll;}
.search-table{table-layout: fixed; margin:40px auto 0px auto;   }

As far as I know you can't give scrollbars to tables themselves.

After some time I will just copy all array elements (excluding these unwanted) to new array

Simply use this function and pass the count of number you want to generate

Code:

function randomFix($length)
{
    $random= "";

srand((double)microtime()*1000000);

$data = "AbcDE123IJKLMN67QRSTUVWXYZ";
$data .= "aBCdefghijklmn123opq45rs67tuv89wxyz";
$data .= "0FGH45OP89";

for($i = 0; $i < $length; $i++)
{
    $random .= substr($data, (rand()%(strlen($data))), 1);
}
return $random;}

tv.setText( a1 + " ");

This will resolve your problem.

The selected answer would work for as long as you know the key itself that you want to delete but if it should be truly dynamic you would need to use the [] notation instead of the dot notation.

For example:

var keyToDelete = "key1";
var myObj = {"test": {"key1": "value", "key2": "value"}}

//that will not work.
delete myObj.test.keyToDelete 

instead you would need to use:

delete myObj.test[keyToDelete];

Substitute the dot notation with [] notation for those values that you want evaluated before being deleted.

Html like this <input type="text" value="click the input to select" onclick="javascript:textSelector(this)"/>

and javascript code without bind

function textSelector(ele){
    $(ele).select();
}

Kendo UI provides the best and ultimate collection of JavaScript UI components with libraries for jQuery, Angular, React, and Vue. You can quickly build eye-catching, high-performance, responsive web applications regardless of your JavaScript framework choice. Here is a timepicker UI component from them:

Also below is an alternate and a simple solution

<!--Css-->
<link href="css/timepicker.css" type="text/css" rel="stylesheet" />

<!--Html-->
<div class="row">
    <div class="col">
        <label class="label-in">Time</label>
        <input class="timepicker" id="event-time" type="text" value="" required="">
    </div>
</div>

<!--Script-->
<script src="Scripts/ClockPicker.js"></script>
<script>
   $('.timepicker').timepicker({
     });
</script>

Here is yet another popular framework Bootstrap Time Picker from mdbootstrap

you can use the Common IO library which can get you the Base name of your file and the Extension.

 String fileUrl=":/storage/sdcard0/DCIM/Camera/1414240995236.jpg";
      String fileName=FilenameUtils.getBaseName(fileUrl);
           String    fileExtention=FilenameUtils.getExtension(fileUrl);
//this will return filename:1414240995236 and fileExtention:jpg

Well it's a very confusing kind of bug. There could be many reasons:

1. You are not mentioning the permissions in right place. Like right above application.
2. You are not using small letters.
3. In some case you also have to add Network state permission.
4. One which was my case there are some blank lines in manifest lines. Like there might be a blank line between permission tag and application line. Remove them and you are done. Hope it will help

This does the trick:

function findAncestor (el, cls) {
    while ((el = el.parentElement) && !el.classList.contains(cls));
    return el;
}

The while loop waits until el has the desired class, and it sets el to el's parent every iteration so in the end, you have the ancestor with that class or null.

Here's a fiddle, if anyone wants to improve it. It won't work on old browsers (i.e. IE); see this compatibility table for classList. parentElement is used here because parentNode would involve more work to make sure that the node is an element.

The whole point of a workspace is to group a set of related projects together that usually make up an application. The workspace framework comes down to the eclipse.core.resources plugin and it naturally by design makes sense.

Projects have natures, builders are attached to specific projects and as you change resources in one project you can see in real time compile or other issues in projects that are in the same workspace. So the strategy I suggest is have different workspaces for different projects you work on but without a workspace in eclipse there would be no concept of a collection of projects and configurations and after all it's an IDE tool.

If that does not make sense ask how Net Beans or Visual Studio addresses this? It's the same theme. Maven is a good example, checking out a group of related maven projects into a workspace lets you develop and see errors in real time. If not a workspace what else would you suggest? An RCP application can be a different beast depending on what its used for but in the true IDE sense I don't know what would be a better solution than a workspace or context of projects. Just my thoughts. - Duncan

If it's still not working then you can select your entire document, copy and paste and it will reformat.

So ... ctrl-a ctrl-c ctrl-v

This is the only thing that I have found that works in VS Community Mac.

Fetch all at once =

List<Integer> list = null;

if(map!= null) 
{ 
  list = new ArrayList<Integer>(map.values()); 
}

For Storing =

if(map!= null) 
{ 
  list = map.get(keyString); 
   if(list == null)
    {
         list = new ArrayList<Integer>();
    }
  list.add(value);
  map.put(keyString,list);
}

As none of these approaches worked for me, I simply did a:

mysqldump [...] | grep -v "LOCK TABLE" | mysql [...]

It will exclude both LOCK TABLE <x> and UNLOCK TABLES commands.

Note: Hopefully your data doesn't contain that string in it!

addressing the functional aspect:

function times(n, f) {
    var _f = function (f) {
        var i;
        for (i = 0; i < n; i++) {
            f(i);
        }
    };
    return typeof f === 'function' && _f(f) || _f;
}
times(6)(function (v) {
    console.log('in parts: ' + v);
});
times(6, function (v) {
    console.log('complete: ' + v);
});

Some compilers support compound literals as an extention, allowing this construct:

Customer customerRecords[2];
customerRecords[0] = (Customer){25, "Bob Jones"};
customerRecords[1] = (Customer){26, "Jim Smith"};

But it's rather unportable.

If you really need to go this way, then this is what you can do. There are probably better ways of doing it, but this is all that I have at the moment. I did no database calls, I just used dummy data. Please modify the code to fit in with your scenario. I used jQuery to populate the HTML table.

In my controller I have the an action method called GetEmployees that returns a JSON result with all the employees. This is where you would call your repository to return the users from a database:

public ActionResult GetEmployees()
{
     List<User> userList = new List<User>();

     User user1 = new User
     {
          Id = 1,
          FirstName = "First name 1",
          LastName = "Last name 1"
     };

     User user2 = new User
     {
          Id = 2,
          FirstName = "First name 2",
          LastName = "Last name 2"
     };

     userList.Add(user1);
     userList.Add(user2);

     return Json(userList, JsonRequestBehavior.AllowGet);
}

The User class looks like this:

public class User
{
     public int Id { get; set; }
     public string FirstName { get; set; }
     public string LastName { get; set; }
}

In your view you could have the following:

<div id="users">
     <table></table>
</div>

<script>

     $(document).ready(function () {

          var url = '/Home/GetEmployees';

          $.getJSON(url, function (data) {

               $.each(data, function (key, val) {

                    var user = '<tr><td>' + val.FirstName + '</td></tr>';

                    $('#users table').append(user);

               });
          });
     });

</script>

Regarding the code above: var url = '/Home/GetEmployees'; Home is the controller and GetEmployees is the action method that you defined above.

I hope this helps.

UPDATE:

This is how I would have done it..

I always create a view model class for a view. In this case I would have called it something like UserListViewModel:

public class UserListViewModel
{
     IEnumerable<User> Users { get; set; }
}

In my controller I would populate this Users list from a call to the database returning all the users:

public ActionResult List()
{
     UserListViewModel viewModel = new UserListViewModel
     {
          Users = userRepository.GetAllUsers()
     };

     return View(viewModel);
}

And in my view I would have the following:

<table>

@foreach(User user in Model.Users)
{
     <tr>
          <td>First Name:</td>
          <td>user.FirstName</td>
     </tr>
}

</table>

From java specification :

The floating-point types are float and double, which are conceptually associated with the single-precision 32-bit and double-precision 64-bit format IEEE 754 values and operations as specified in IEEE Standard for Binary Floating-Point Arithmetic, ANSI/IEEE Standard 754-1985 (IEEE, New York).

As it's hard to do anything with numbers without understanding IEEE754 basics, here's another link.

It's important to understand that the precision isn't uniform and that this isn't an exact storage of the numbers as is done for integers.

An example :

double a = 0.3 - 0.1;
System.out.println(a);          

prints

0.19999999999999998

If you need arbitrary precision (for example for financial purposes) you may need Big Decimal.

If you don't want to use setMaxResults() on the Query object then you could always revert back to using normal SQL.

if your tmp folder is relative to the directory where your code is running remove the / in front of /tmp.

So you just have tmp/test.jpg in your code. This worked for me in a similar situation.

You can try something like this

stages {
        stage('Build') {
            environment { 
                    AOEU= sh (returnStdout: true, script: 'echo aoeu').trim()
                }
            steps {
                sh 'env'
                sh 'echo $AOEU'
            }
        }
    }

Changing text color of button

Because this method is now deprecated

button.setTextColor(getResources().getColor(R.color.your_color));

I use the following:

button.setTextColor(ContextCompat.getColor(mContext, R.color.your_color));

This solution switches on and off

<script>
$(document).ready(function() {
  // close all dropdowns that are open
  $('body').click(function(e) {
      $('.nav-item.show').removeClass('show');
      //$('.nav-item.clicked').removeClass('clicked');
      $('.dropdown-menu.show').removeClass('show');
  });

  $('.nav-item').click( function(e) {
    $(this).addClass('clicked')
  });

  // show dropdown for the link clicked
  $('.nav-item').hover(function(e) {
      if ($('.nav-item.show').length < 1) {
        $('.nav-item.clicked').removeClass('clicked');
      }
      if ($('.nav-item.clicked').length < 1) {
          $('.nav-item.show').removeClass('show');
          $('.dropdown-menu.show').removeClass('show');
          $dd = $(this).find('.dropdown-menu');
          $dd.parent().addClass('show');
          $dd.addClass('show');
      }
  });
});</script>

To disable the hover for lg sized collapse menus add

if(( $(window).width() >= 992 )) {

debugger is a reserved keyword by EcmaScript and given optional semantics since ES5

As a result, it can be used not only in Chrome, but also Firefox and Node.js via node debug myscript.js.

The standard says:

Syntax

DebuggerStatement :
    debugger ;

Semantics

Evaluating the DebuggerStatement production may allow an implementation to cause a breakpoint when run under a debugger. If a debugger is not present or active this statement has no observable effect.

The production DebuggerStatement : debugger ; is evaluated as follows:

1. If an implementation defined debugging facility is available and enabled, then
   1. Perform an implementation defined debugging action.
   2. Let result be an implementation defined Completion value.
2. Else
   1. Let result be (normal, empty, empty).
3. Return result.

No changes in ES6.

Just another example of walking down the directory structure to get exactly what you want. Note: I didn't exclude Library/ but Library/**/*

# .gitignore file
Library/**/*
!Library/Application Support/
!Library/Application Support/Sublime Text 3/
!Library/Application Support/Sublime Text 3/Packages/
!Library/Application Support/Sublime Text 3/Packages/User/
!Library/Application Support/Sublime Text 3/Packages/User/*macro
!Library/Application Support/Sublime Text 3/Packages/User/*snippet
!Library/Application Support/Sublime Text 3/Packages/User/*settings
!Library/Application Support/Sublime Text 3/Packages/User/*keymap
!Library/Application Support/Sublime Text 3/Packages/User/*theme
!Library/Application Support/Sublime Text 3/Packages/User/**/
!Library/Application Support/Sublime Text 3/Packages/User/**/*macro
!Library/Application Support/Sublime Text 3/Packages/User/**/*snippet
!Library/Application Support/Sublime Text 3/Packages/User/**/*settings
!Library/Application Support/Sublime Text 3/Packages/User/**/*keymap
!Library/Application Support/Sublime Text 3/Packages/User/**/*theme

> git add Library

> git status

On branch master
Your branch is up-to-date with 'origin/master'.
Changes to be committed:
  (use "git reset HEAD <file>..." to unstage)

    new file:   Library/Application Support/Sublime Text 3/Packages/User/Default (OSX).sublime-keymap
    new file:   Library/Application Support/Sublime Text 3/Packages/User/ElixirSublime.sublime-settings
    new file:   Library/Application Support/Sublime Text 3/Packages/User/Package Control.sublime-settings
    new file:   Library/Application Support/Sublime Text 3/Packages/User/Preferences.sublime-settings
    new file:   Library/Application Support/Sublime Text 3/Packages/User/RESTer.sublime-settings
    new file:   Library/Application Support/Sublime Text 3/Packages/User/SublimeLinter/Monokai (SL).tmTheme
    new file:   Library/Application Support/Sublime Text 3/Packages/User/TextPastryHistory.sublime-settings
    new file:   Library/Application Support/Sublime Text 3/Packages/User/ZenTabs.sublime-settings
    new file:   Library/Application Support/Sublime Text 3/Packages/User/adrian-comment.sublime-macro
    new file:   Library/Application Support/Sublime Text 3/Packages/User/json-pretty-generate.sublime-snippet
    new file:   Library/Application Support/Sublime Text 3/Packages/User/raise-exception.sublime-snippet
    new file:   Library/Application Support/Sublime Text 3/Packages/User/trailing_spaces.sublime-settings

Try this. I've use the Large Object Binary (LOB) format for storing generated PDF documents, some of which were 10+ MB in size, in a database and it worked wonderfully.

Some "front ends", with the "Use Booleans" option enabled, will treat all TINYINT(1) columns as Boolean, and vice versa.

This allows you to, in the application, use TRUE and FALSE rather than 1 and 0.

This doesn't affect the database at all, since it's implemented in the application.

There is not really a BOOLEAN type in MySQL. BOOLEAN is just a synonym for TINYINT(1), and TRUE and FALSE are synonyms for 1 and 0.

If the conversion is done in the compiler, there will be no difference in performance in the application. Otherwise, the difference still won't be noticeable.

You should use whichever method allows you to code more efficiently, though not using the feature may reduce dependency on that particular "front end" vendor.

Here I will explain how to do it without an external library. It will be a very long post, so brace yourself.

First of all, let me acknowledge @tim.paetz whose post inspired me to set off to a journey of implementing my own sticky headers using ItemDecorations. I borrowed some parts of his code in my implementation.

As you might have already experienced, if you attempted to do it yourself, it is very hard to find a good explanation of HOW to actually do it with the ItemDecoration technique. I mean, what are the steps? What is the logic behind it? How do I make the header stick on top of the list? Not knowing answers to these questions is what makes others to use external libraries, while doing it yourself with the use of ItemDecoration is pretty easy.

Initial conditions

1. You dataset should be a list of items of different type (not in a "Java types" sense, but in a "header/item" types sense).
2. Your list should be already sorted.
3. Every item in the list should be of certain type - there should be a header item related to it.
4. Very first item in the list must be a header item.

Here I provide full code for my RecyclerView.ItemDecoration called HeaderItemDecoration. Then I explain the steps taken in detail.

public class HeaderItemDecoration extends RecyclerView.ItemDecoration {

 private StickyHeaderInterface mListener;
 private int mStickyHeaderHeight;

 public HeaderItemDecoration(RecyclerView recyclerView, @NonNull StickyHeaderInterface listener) {
  mListener = listener;

  // On Sticky Header Click
  recyclerView.addOnItemTouchListener(new RecyclerView.OnItemTouchListener() {
   public boolean onInterceptTouchEvent(RecyclerView recyclerView, MotionEvent motionEvent) {
    if (motionEvent.getY() <= mStickyHeaderHeight) {
     // Handle the clicks on the header here ...
     return true;
    }
    return false;
   }

   public void onTouchEvent(RecyclerView recyclerView, MotionEvent motionEvent) {

   }

   public void onRequestDisallowInterceptTouchEvent(boolean disallowIntercept) {

   }
  });
 }

 @Override
 public void onDrawOver(Canvas c, RecyclerView parent, RecyclerView.State state) {
  super.onDrawOver(c, parent, state);

  View topChild = parent.getChildAt(0);
  if (Util.isNull(topChild)) {
   return;
  }

  int topChildPosition = parent.getChildAdapterPosition(topChild);
  if (topChildPosition == RecyclerView.NO_POSITION) {
   return;
  }

  View currentHeader = getHeaderViewForItem(topChildPosition, parent);
  fixLayoutSize(parent, currentHeader);
  int contactPoint = currentHeader.getBottom();
  View childInContact = getChildInContact(parent, contactPoint);
  if (Util.isNull(childInContact)) {
   return;
  }

  if (mListener.isHeader(parent.getChildAdapterPosition(childInContact))) {
   moveHeader(c, currentHeader, childInContact);
   return;
  }

  drawHeader(c, currentHeader);
 }

 private View getHeaderViewForItem(int itemPosition, RecyclerView parent) {
  int headerPosition = mListener.getHeaderPositionForItem(itemPosition);
  int layoutResId = mListener.getHeaderLayout(headerPosition);
  View header = LayoutInflater.from(parent.getContext()).inflate(layoutResId, parent, false);
  mListener.bindHeaderData(header, headerPosition);
  return header;
 }

 private void drawHeader(Canvas c, View header) {
  c.save();
  c.translate(0, 0);
  header.draw(c);
  c.restore();
 }

 private void moveHeader(Canvas c, View currentHeader, View nextHeader) {
  c.save();
  c.translate(0, nextHeader.getTop() - currentHeader.getHeight());
  currentHeader.draw(c);
  c.restore();
 }

 private View getChildInContact(RecyclerView parent, int contactPoint) {
  View childInContact = null;
  for (int i = 0; i < parent.getChildCount(); i++) {
   View child = parent.getChildAt(i);
   if (child.getBottom() > contactPoint) {
    if (child.getTop() <= contactPoint) {
     // This child overlaps the contactPoint
     childInContact = child;
     break;
    }
   }
  }
  return childInContact;
 }

 /**
  * Properly measures and layouts the top sticky header.
  * @param parent ViewGroup: RecyclerView in this case.
  */
 private void fixLayoutSize(ViewGroup parent, View view) {

  // Specs for parent (RecyclerView)
  int widthSpec = View.MeasureSpec.makeMeasureSpec(parent.getWidth(), View.MeasureSpec.EXACTLY);
  int heightSpec = View.MeasureSpec.makeMeasureSpec(parent.getHeight(), View.MeasureSpec.UNSPECIFIED);

  // Specs for children (headers)
  int childWidthSpec = ViewGroup.getChildMeasureSpec(widthSpec, parent.getPaddingLeft() + parent.getPaddingRight(), view.getLayoutParams().width);
  int childHeightSpec = ViewGroup.getChildMeasureSpec(heightSpec, parent.getPaddingTop() + parent.getPaddingBottom(), view.getLayoutParams().height);

  view.measure(childWidthSpec, childHeightSpec);

  view.layout(0, 0, view.getMeasuredWidth(), mStickyHeaderHeight = view.getMeasuredHeight());
 }

 public interface StickyHeaderInterface {

  /**
   * This method gets called by {@link HeaderItemDecoration} to fetch the position of the header item in the adapter
   * that is used for (represents) item at specified position.
   * @param itemPosition int. Adapter's position of the item for which to do the search of the position of the header item.
   * @return int. Position of the header item in the adapter.
   */
  int getHeaderPositionForItem(int itemPosition);

  /**
   * This method gets called by {@link HeaderItemDecoration} to get layout resource id for the header item at specified adapter's position.
   * @param headerPosition int. Position of the header item in the adapter.
   * @return int. Layout resource id.
   */
  int getHeaderLayout(int headerPosition);

  /**
   * This method gets called by {@link HeaderItemDecoration} to setup the header View.
   * @param header View. Header to set the data on.
   * @param headerPosition int. Position of the header item in the adapter.
   */
  void bindHeaderData(View header, int headerPosition);

  /**
   * This method gets called by {@link HeaderItemDecoration} to verify whether the item represents a header.
   * @param itemPosition int.
   * @return true, if item at the specified adapter's position represents a header.
   */
  boolean isHeader(int itemPosition);
 }
}

Business logic

So, how do I make it stick?

You don't. You can't make a RecyclerView's item of your choice just stop and stick on top, unless you are a guru of custom layouts and you know 12,000+ lines of code for a RecyclerView by heart. So, as it always goes with the UI design, if you can't make something, fake it. You just draw the header on top of everything using Canvas. You also should know which items the user can see at the moment. It just happens, that ItemDecoration can provide you with both the Canvas and information about visible items. With this, here are basic steps:

1. In onDrawOver method of RecyclerView.ItemDecoration get the very first (top) item that is visible to the user.

       View topChild = parent.getChildAt(0);
   

2. Determine which header represents it.

           int topChildPosition = parent.getChildAdapterPosition(topChild);
       View currentHeader = getHeaderViewForItem(topChildPosition, parent);
   

3. Draw the appropriate header on top of the RecyclerView by using drawHeader() method.

I also want to implement the behavior when the new upcoming header meets the top one: it should seem as the upcoming header gently pushes the top current header out of the view and takes his place eventually.

Same technique of "drawing on top of everything" applies here.

1. Determine when the top "stuck" header meets the new upcoming one.

           View childInContact = getChildInContact(parent, contactPoint);
   

2. Get this contact point (that is the bottom of the sticky header your drew and the top of the upcoming header).

           int contactPoint = currentHeader.getBottom();
   

3. If the item in the list is trespassing this "contact point", redraw your sticky header so its bottom will be at the top of the trespassing item. You achieve this with translate() method of the Canvas. As the result, the starting point of the top header will be out of visible area, and it will seem as "being pushed out by the upcoming header". When it is completely gone, draw the new header on top.

           if (childInContact != null) {
           if (mListener.isHeader(parent.getChildAdapterPosition(childInContact))) {
               moveHeader(c, currentHeader, childInContact);
           } else {
               drawHeader(c, currentHeader);
           }
       }
   

The rest is explained by comments and thorough annotations in piece of code I provided.

The usage is straight forward:

mRecyclerView.addItemDecoration(new HeaderItemDecoration((HeaderItemDecoration.StickyHeaderInterface) mAdapter));

Your mAdapter must implement StickyHeaderInterface for it to work. The implementation depends on the data you have.

Finally, here I provide a gif with a half-transparent headers, so you can grasp the idea and actually see what is going on under the hood.

Here is the illustration of "just draw on top of everything" concept. You can see that there are two items "header 1" - one that we draw and stays on top in a stuck position, and the other one that comes from the dataset and moves with all the rest items. The user won't see the inner-workings of it, because you'll won't have half-transparent headers.

And here what happens in the "pushing out" phase:

Hope it helped.

Edit

Here is my actual implementation of getHeaderPositionForItem() method in the RecyclerView's adapter:

@Override
public int getHeaderPositionForItem(int itemPosition) {
    int headerPosition = 0;
    do {
        if (this.isHeader(itemPosition)) {
            headerPosition = itemPosition;
            break;
        }
        itemPosition -= 1;
    } while (itemPosition >= 0);
    return headerPosition;
}

Slightly different implementation in Kotlin

With Postgres 9.3+, just use the -> operator. For example,

SELECT data->'images'->'thumbnail'->'url' AS thumb FROM instagram;

see http://clarkdave.net/2013/06/what-can-you-do-with-postgresql-and-json/ for some nice examples and a tutorial.

I've been using something like this. Just set up a simple HTML page with an textinput. Make sure that the textinput always has focus. When you scan a barcode with your barcode scanner you will receive the code and after that a 'enter'. Realy simple then; just capture the incoming keystrokes and when the 'enter' comes in you can use AJAX to handle your code.

according to this it looks like you have to set "N" before trying to use it and it looks like it needs to be an int not string? Don't know much bout MatLab but just what i gathered from that site..hope it helps :)

You can do this:

CSS:

#container {
    height:175px;
}

#container h3{
    position:absolute;
    bottom:0;
    left:0;
}

Then in HTML:

<div class="row">
    <div class="col-sm-6">
        <img src="//placehold.it/600x300" alt="Logo" />
    </div>
    <div id="container" class="col-sm-6">
        <h3>Some Text</h3>
    </div>
</div>

EDIT: add the <

In short,

Selection sort : Select the first element from unsorted array and compare it with remaining unsorted elements. It is similar to Bubble sort, but instead of swapping each smaller elements, keeps the smallest element index updated and swap it at the end of each loop.

Insertion sort : It is opposite to Selection sort where it picks first element from unsorted sub-array and compare it with sorted sub-array and insert the smallest element where found and shift all the sorted elements from its right to the first unsorted element.

You should use the *ngIf Directive

<div *ngIf="edited" class="alert alert-success box-msg" role="alert">
        <strong>List Saved!</strong> Your changes has been saved.
</div>


export class AppComponent implements OnInit{

  (...)
  public edited = false;
  (...)
  saveTodos(): void {
   //show box msg
   this.edited = true;
   //wait 3 Seconds and hide
   setTimeout(function() {
       this.edited = false;
       console.log(this.edited);
   }.bind(this), 3000);
  }
}

Update: you are missing the reference to the outer scope when you are inside the Timeout callback.

so add the .bind(this) like I added Above

Q : edited is a global variable. What would be your approach within a *ngFor-loop? – Blauhirn

A : I would add edit as a property to the object I am iterating over.

<div *ngFor="let obj of listOfObjects" *ngIf="obj.edited" class="alert alert-success box-msg" role="alert">
        <strong>List Saved!</strong> Your changes has been saved.
</div>


export class AppComponent implements OnInit{
   
  public listOfObjects = [
    {
       name : 'obj - 1',
       edit : false
    },
    {
       name : 'obj - 2',
       edit : false
    },
    {
       name : 'obj - 2',
       edit : false
    } 
  ];
  saveTodos(): void {
   //show box msg
   this.edited = true;
   //wait 3 Seconds and hide
   setTimeout(function() {
       this.edited = false;
       console.log(this.edited);
   }.bind(this), 3000);
  }
}