In previous answers a few registry keys that might not exist are missed. They are SchUseStrongCrypto that must exist to allow to TLS protocols work properly.

After the registry keys have been imported to registry it should not be required to make changes in code like

ServicePointManager.SecurityProtocol = SecurityProtocolType.Tls;

Below there are all registry keys and values that are needed for x64 windows OS. If you have 32bit OS (x86) just remove the last 2 lines. TLS 1.0 will be disabled by the registry script. Restarting OS is required.

Windows Registry Editor Version 5.00

[HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\SecurityProviders\SCHANNEL\Protocols]

[HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\SecurityProviders\SCHANNEL\Protocols\SSL 2.0]

[HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\SecurityProviders\SCHANNEL\Protocols\SSL 2.0\Client]
"DisabledByDefault"=dword:00000001
"enabled"=dword:00000000

[HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\SecurityProviders\SCHANNEL\Protocols\SSL 2.0\server]
"disabledbydefault"=dword:00000001
"enabled"=dword:00000000

[HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\SecurityProviders\SCHANNEL\Protocols\ssl 3.0]

[HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\SecurityProviders\SCHANNEL\Protocols\ssl 3.0\client]
"disabledbydefault"=dword:00000001
"enabled"=dword:00000000

[HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\SecurityProviders\SCHANNEL\Protocols\ssl 3.0\server]
"disabledbydefault"=dword:00000001
"enabled"=dword:00000000

[HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\SecurityProviders\SCHANNEL\Protocols\tls 1.0]

[HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\SecurityProviders\SCHANNEL\Protocols\tls 1.0\client]
"disabledbydefault"=dword:00000001
"enabled"=dword:00000000

[HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\SecurityProviders\SCHANNEL\Protocols\tls 1.0\server]
"disabledbydefault"=dword:00000001
"enabled"=dword:00000000

[HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\SecurityProviders\SCHANNEL\Protocols\tls 1.1]

[HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\SecurityProviders\SCHANNEL\Protocols\tls 1.1\client]
"disabledbydefault"=dword:00000000
"enabled"=dword:00000001

[HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\SecurityProviders\SCHANNEL\Protocols\tls 1.1\server]
"disabledbydefault"=dword:00000000
"enabled"=dword:00000001

[HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\SecurityProviders\SCHANNEL\Protocols\tls 1.2]

[HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\SecurityProviders\SCHANNEL\Protocols\tls 1.2\client]
"disabledbydefault"=dword:00000000
"enabled"=dword:00000001

[HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\SecurityProviders\SCHANNEL\Protocols\tls 1.2\server]
"disabledbydefault"=dword:00000000
"enabled"=dword:00000001

[HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\.NETFramework\v4.0.30319]
"SchUseStrongCrypto"=dword:00000001

[HKEY_LOCAL_MACHINE\SOFTWARE\Wow6432Node\Microsoft\.NETFramework\v4.0.30319]
"SchUseStrongCrypto"=dword:00000001

For getting all the info about the cordova package use this command:

npm info cordova

This is actually possible since Facebook was able to do it. Well, not the actual web developer tools but the execution of Javascript in console.

See this: How does Facebook disable the browser's integrated Developer Tools?

This really wont do much though since there are other ways to bypass this type of client-side security.

When you say it is client-side, it happens outside the control of the server, so there is not much you can do about it. If you are asking why Facebook still does this, this is not really for security but to protect normal users that do not know javascript from running code (that they don't know how to read) into the console. This is common for sites that promise auto-liker service or other Facebook functionality bots after you do what they ask you to do, where in most cases, they give you a snip of javascript to run in console.

If you don't have as much users as Facebook, then I don't think there's any need to do what Facebook is doing.

Even if you disable Javascript in console, running javascript via address bar is still possible.

and if the browser disables javascript at address bar, (When you paste code to the address bar in Google Chrome, it deletes the phrase 'javascript:') pasting javascript into one of the links via inspect element is still possible.

Inspect the anchor:

Paste code in href:

Bottom line is server-side validation and security should be first, then do client-side after.

With me this error ocurred when I copied and pasted a code in text format to my editor (gedit). The code was in a text document (.odt) and I copied it and pasted it into gedit. If you did the same, you have manually rewrite the code.

The text uses combining characters, also known as combining marks. See section 2.11 of Combining Characters in the Unicode Standard (PDF).

In Unicode, character rendering does not use a simple character cell model where each glyph fits into a box with given height. Combining marks may be rendered above, below, or inside a base character

So you can easily construct a character sequence, consisting of a base character and “combining above” marks, of any length, to reach any desired visual height, assuming that the rendering software conforms to the Unicode rendering model. Such a sequence has no meaning of course, and even a monkey could produce it (e.g., given a keyboard with suitable driver).

And you can mix “combining above” and “combining below” marks.

The sample text in the question starts with:

• LATIN CAPITAL LETTER H - H
• COMBINING LATIN SMALL LETTER T - ͭ
• COMBINING GREEK KORONIS - ̓
• COMBINING COMMA ABOVE - ̓
• COMBINING DOT ABOVE - ̇

Well, you're on the right path, Benno!

There are some tips regarding VBA programming that might help you out.

1. Use always explicit references to the sheet you want to interact with. Otherwise, Excel may 'assume' your code applies to the active sheet and eventually you'll see it screws your spreadsheet up.

2. As lionz mentioned, get in touch with the native methods Excel offers. You might use them on most of your tricks.

3. Explicitly declare your variables... they'll show the list of methods each object offers in VBA. It might save your time digging on the internet.

Now, let's have a draft code...

Remember this code must be within the Excel Sheet object, as explained by lionz. It only applies to Sheet 2, is up to you to adapt it to both Sheet 2 and Sheet 3 in the way you prefer.

Hope it helps!

Private Sub Worksheet_Change(ByVal Target As Range)

    Dim oSheet As Excel.Worksheet

    'We only want to do something if the changed cell is B6, right?
    If Target.Address = "$B$6" Then

        'Checks if it's a number...
        If IsNumeric(Target.Value) Then

            'Let's avoid values out of your bonds, correct?
            If Target.Value > 0 And Target.Value < 51 Then

                'Let's assign the worksheet we'll show / hide rows to one variable and then
                '   use only the reference to the variable itself instead of the sheet name.
                '   It's safer.

                'You can alternatively replace 'sheet 2' by 2 (without quotes) which will represent
                '   the sheet index within the workbook
                Set oSheet = ActiveWorkbook.Sheets("Sheet 2")

                'We'll unhide before hide, to ensure we hide the correct ones
                oSheet.Range("A7:A56").EntireRow.Hidden = False

                oSheet.Range("A" & Target.Value + 7 & ":A56").EntireRow.Hidden = True

            End If

        End If

    End If

End Sub

Consider the following query:

$iId = mysql_real_escape_string("1 OR 1=1");    
$sSql = "SELECT * FROM table WHERE id = $iId";

mysql_real_escape_string() will not protect you against this. The fact that you use single quotes (' ') around your variables inside your query is what protects you against this. The following is also an option:

$iId = (int)"1 OR 1=1";
$sSql = "SELECT * FROM table WHERE id = $iId";

One thing that i didn't see in other answers is To clarify another answers that there is a difference between returning std::unique_ptr that has been created within a function, and one that has been given to that function.

The example could be like this:

class Test
{int i;};
std::unique_ptr<Test> foo1()
{
    std::unique_ptr<Test> res(new Test);
    return res;
}
std::unique_ptr<Test> foo2(std::unique_ptr<Test>&& t)
{
    // return t;  // this will produce an error!
    return std::move(t);
}

//...
auto test1=foo1();
auto test2=foo2(std::unique_ptr<Test>(new Test));

Plattform-specific, but also theoretical exec vectors:

• dotnet_load()
• new COM("WScript.Shell")
• new Java("java.lang.Runtime")
• event_new() - very eventually

And there are many more disguising methods:

• proc_open is an alias for popen
• call_user_func_array("exE".chr(99), array("/usr/bin/damage", "--all"));
• file_put_contents("/cgi-bin/nextinvocation.cgi") && chmod(...)
• PharData::setDefaultStub - some more work to examine code in .phar files
• runkit_function_rename("exec", "innocent_name") or APD rename_function

You can use stepi or nexti (which can be abbreviated to si or ni) to step through your machine code.

It depends on your application and its use as to the level of security you need.

In terms of security, you should be validating all values you get from the querystring or post parameters, to ensure they're valid.

You may also wish to add logging for others, including analysis of weblogs so you can determine if an attempt to hack your system is occuring.

I don't believe it's possible to inject javascript into a URL and have this run, unless your application is using parameters without validating them first.

You can use a RegularExpression validator. The ValidationExpression property has a button you can press in Visual Studio's property's panel that gets lists a lot of useful expressions. The one they use for email addresses is:

\w+([-+.']\w+)*@\w+([-.]\w+)*\.\w+([-.]\w+)*

You can use this variable to retrieve response headers after file_get_contents() function.

Code:

  file_get_contents("http://example.com");
  var_dump($http_response_header);

Output:

array(9) {
  [0]=>
  string(15) "HTTP/1.1 200 OK"
  [1]=>
  string(35) "Date: Sat, 12 Apr 2008 17:30:38 GMT"
  [2]=>
  string(29) "Server: Apache/2.2.3 (CentOS)"
  [3]=>
  string(44) "Last-Modified: Tue, 15 Nov 2005 13:24:10 GMT"
  [4]=>
  string(27) "ETag: "280100-1b6-80bfd280""
  [5]=>
  string(20) "Accept-Ranges: bytes"
  [6]=>
  string(19) "Content-Length: 438"
  [7]=>
  string(17) "Connection: close"
  [8]=>
  string(38) "Content-Type: text/html; charset=UTF-8"
}

In my particular case the function was actually missing. The error message is the same. I am using the Postgresql plugin PostGIS and I had to reinstall that for whatever reason.

It's not possible to do that using JPA annotation. And this make sense: where a UniqueConstraint clearly define a business rules, an index is just a way to make search faster. So this should really be done by a DBA.

It can also be due to a duplicate entry in any of the tables that are used.

I have struggled with a similar issue for one day... My Scenario:

I have a SpringBoot application and I use applicationContext.xml in scr/main/resources to configure all my Spring Beans. For testing(integration testing) I use another applicationContext.xml in test/resources and things worked as I have expected: Spring/SpringBoot would override applicationContext.xml from scr/main/resources and would use the one for Testing which contained the beans configured for testing.

However, just for one UnitTest I wanted yet another customization for the applicationContext.xml used in Testing, just for this Test I wanted to used some mockito beans, so I could mock and verify, and here started my one day head-ache!

The problem is that Spring/SpringBoot doesn't not override the applicationContext.xml from scr/main/resources ONLY IF the file from test/resources HAS the SAME NAME. I tried for hours to use something like:

@RunWith(SpringJUnit4ClassRunner.class)
@OverrideAutoConfiguration(enabled=true)
@ContextConfiguration({"classpath:applicationContext-test.xml"})

it did not work, Spring was first loading the beans from applicationContext.xml in scr/main/resources

My solution based on the answers here by @myroch and @Stuart:

1. Define the main configuration of the application:

   @Configuration @ImportResource({"classpath:applicationContext.xml"}) public class MainAppConfig { }

this is used in the application

@SpringBootApplication
@Import(MainAppConfig.class)
public class SuppressionMain implements CommandLineRunner

2. Define a TestConfiguration for the Test where you want to exclude the main configuration

   @ComponentScan( basePackages = "com.mypackage", excludeFilters = { @ComponentScan.Filter(type = ASSIGNABLE_TYPE, value = {MainAppConfig.class}) }) @EnableAutoConfiguration public class TestConfig { }

By doing this, for this Test, Spring will not load applicationContext.xml and will load only the custom configuration specific for this Test.

One of the putty tools is pscp.exe; it will allow you to copy files from your remote host.

systemd

sudo systemctl stop mysqld.service && sudo yum remove -y mariadb mariadb-server && sudo rm -rf /var/lib/mysql /etc/my.cnf

sysvinit

sudo service mysql stop && sudo apt-get remove mariadb mariadb-server && sudo rm -rf /var/lib/mysql /etc/my.cnf

System.Diagnostics.Process.Start("PATH to exe", "Command Line Arguments");

To bypass this in PHPMyAdmin or with MySQL, first remove the foreign key constraint before renaming the attribute.

(For PHPMyAdmin users: To remove FK constrains in PHPMyAdmin, select the attribute then click "relation view" next to "print view" in the toolbar below the table structure)

Keep the jar files under web-inf lib incase you included jar and it is not able to identify .

It worked in my case where everything was ok but it was not able to load the driver class.

Another approach if you wanted to swap out a specific character for another character:

def swap(input_string):
   if len(input_string) == 0:
     return input_string
   if input_string[0] == "x":
     return "y" + swap(input_string[1:])
   else:
     return input_string[0] + swap(input_string[1:])

Like you tube.. initially they show icon screen instead of white screen. And after 2 seconds shows home screen.

first create an XML drawable in res/drawable.

<?xml version="1.0" encoding="utf-8"?>
<layer-list xmlns:android="http://schemas.android.com/apk/res/android">

    <item
        android:drawable="@color/gray"/>

    <item>
        <bitmap
            android:gravity="center"
            android:src="@mipmap/ic_launcher"/>
    </item>

</layer-list>

Next, you will set this as your splash activity’s background in the theme. Navigate to your styles.xml file and add a new theme for your splash activity

<resources>

    <!-- Base application theme. -->
    <style name="AppTheme" parent="Theme.AppCompat.Light.DarkActionBar">
        <!-- Customize your theme here. -->
    </style>

    <style name="SplashTheme" parent="Theme.AppCompat.NoActionBar">
        <item name="android:windowBackground">@drawable/background_splash</item>
    </style>

</resources>

In your new SplashTheme, set the window background attribute to your XML drawable. Configure this as your splash activity’s theme in your AndroidManifest.xml:

<activity
    android:name=".SplashActivity"
    android:theme="@style/SplashTheme">
    <intent-filter>
        <action android:name="android.intent.action.MAIN" />

        <category android:name="android.intent.category.LAUNCHER" />
    </intent-filter>
</activity>

This link gives what you want. step by step procedure. https://www.bignerdranch.com/blog/splash-screens-the-right-way/

UPDATE:

The layer-list can be even simpler like this (which also accepts vector drawables for the centered logo, unlike the <bitmap> tag):

<layer-list xmlns:android="http://schemas.android.com/apk/res/android">
    <!-- Background color -->
    <item android:drawable="@color/gray"/>

    <!-- Logo at the center of the screen -->
    <item
        android:drawable="@mipmap/ic_launcher"
        android:gravity="center"/>
</layer-list>

If you simply want to create an empty data frame and fill it with some incoming data frames later, try this:

newDF = pd.DataFrame() #creates a new dataframe that's empty
newDF = newDF.append(oldDF, ignore_index = True) # ignoring index is optional
# try printing some data from newDF
print newDF.head() #again optional 

In this example I am using this pandas doc to create a new data frame and then using append to write to the newDF with data from oldDF.

If I have to keep appending new data into this newDF from more than one oldDFs, I just use a for loop to iterate over pandas.DataFrame.append()

A little alternative to @gasp´s answer is to simply put the actual domain name you are running it from. Docs: https://httpd.apache.org/docs/2.4/upgrading.html

In the following example, there is no authentication and all hosts in the example.org domain are allowed access; all other hosts are denied access.

Apache 2.2 configuration:

Order Deny,Allow
Deny from all
Allow from example.org

Apache 2.4 configuration:

Require host example.org

Prefixing an "!" symbol to commands you type in pdb seems to have the same effect as doing something in an IPython shell. This works for accessing help for a certain function, or even variable names. Maybe this will help you to some extent. For example,

ipdb> help(numpy.transpose)
*** No help on (numpy.transpose)

But !help(numpy.transpose) will give you the expected help page on numpy.transpose. Similarly for variable names, say you have a variable l, typing "l" in pdb lists the code, but !l prints the value of l.

When you have specified a width on the object that you have applied margin: 0 auto to, the object will sit centrally within it's parent container.

Specifying auto as the second parameter basically tells the browser to automatically determine the left and right margins itself, which it does by setting them equally. It guarantees that the left and right margins will be set to the same size. The first parameter 0 indicates that the top and bottom margins will both be set to 0.

margin-top:0;
margin-bottom:0;
margin-left:auto;
margin-right:auto;

Therefore, to give you an example, if the parent is 100px and the child is 50px, then the auto property will determine that there's 50px of free space to share between margin-left and margin-right:

var freeSpace = 100 - 50;
var equalShare = freeSpace / 2;

Which would give:

margin-left:25;
margin-right:25;

Have a look at this jsFiddle. You do not have to specify the parent width, only the width of the child object.

I just came across this problem and wanted to find something about the performance, but I couldn't, so I wrote a benchmarking script on my own:

% Config:
rows = 1e6;
runs = 50;

% Start:
orig = round(rand(rows, 1));

t1 = 0;
for i = 1:runs
    A = orig;
    tic
    A(A == 0) = [];
    t1 = t1 + toc;
end
t1 = t1 / runs;

t2 = 0;
for i = 1:runs
    A = orig;
    tic
    A = A(A ~= 0);
    t2 = t2 + toc;
end
t2 = t2 / runs;

t1
t2
t1 / t2

So you see, the solution using A = A(A ~= 0) is the quicker of the two :)

Here is the solution just copy your SDK Manager.exe file at the root folder of your android studio's installation, Sync your project and cheers... here is the link for details. running Android Studio on Windows 7 fails, no Android SDK found

I'm not sure this is so surprising. Most people who code in PHP are not well versed in what PHP is actually doing at the bare metal. I'll state a few things, which will be true most of the time:

1. If you're not modifying the variable, by-value is faster in PHP. This is because it's reference counted anyway and by-value gives it less to do. It knows the second you modify that ZVAL (PHP's internal data structure for most types), it will have to break it off in a straightforward way (copy it and forget about the other ZVAL). But you never modify it, so it doesn't matter. References make that more complicated with more bookkeeping it has to do to know what to do when you modify the variable. So if you're read-only, paradoxically it's better not the point that out with the &. I know, it's counter intuitive, but it's also true.

2. Foreach isn't slow. And for simple iteration, the condition it's testing against — "am I at the end of this array" — is done using native code, not PHP opcodes. Even if it's APC cached opcodes, it's still slower than a bunch of native operations done at the bare metal.

3. Using a for loop "for ($i=0; $i < count($x); $i++) is slow because of the count(), and the lack of PHP's ability (or really any interpreted language) to evaluate at parse time whether anything modifies the array. This prevents it from evaluating the count once.

4. But even once you fix it with "$c=count($x); for ($i=0; $i<$c; $i++) the $i<$c is a bunch of Zend opcodes at best, as is the $i++. In the course of 100000 iterations, this can matter. Foreach knows at the native level what to do. No PHP opcodes needed to test the "am I at the end of this array" condition.

5. What about the old school "while(list(" stuff? Well, using each(), current(), etc. are all going to involve at least 1 function call, which isn't slow, but not free. Yes, those are PHP opcodes again! So while + list + each has its costs as well.

For these reasons foreach is understandably the best option for simple iteration.

And don't forget, it's also the easiest to read, so it's win-win.

Try this regular expression:

\w*Id\b

\w* allows word characters in front of Id and the \b ensures that Id is at the end of the word (\b is word boundary assertion).

Marquis Wang's may well be the best answer when using jQuery.

Here is something quite similar in pure JavaScript, using JavaScript's forEach method. forEach takes a function as an argument. That function will then be called for each item in the array, with said item as the argument.

Short and easy:

var results = [ {"id":"10", "class": "child-of-9"}, {"id":"11", "classd": "child-of-10"} ];

results.forEach(function(item) {
    console.log(item);
});

May be in a situation where you are creating a new mysqli object.

$MyConnection = new mysqli($hn, $un, $pw, $db);

but even after you close the object

$MyConnection->close();

if you will use print_r() to check the contents of $MyConnection, you will get an error as below:

Error:
mysqli Object

Warning: print_r(): Property access is not allowed yet in /path/to/program on line ..
( [affected_rows] => [client_info] => [client_version] =>.................)

in which case you can't use unlink() because unlink() will require a path name string but in this case $MyConnection is an Object.

So you have another choice of setting its value to null:

$MyConnection = null;

now things go right, as you have expected. You don't have any content inside the variable $MyConnection as well as you already cleaned up the mysqli Object.

It's a recommended practice to close the Object before setting the value of your variable to null.

Let me throw out some example code that I got from http://www3.ntu.edu.sg/home/ehchua/programming/java/DateTimeCalendar.html Then you can play around with different options until you understand it.

import java.text.SimpleDateFormat;
import java.util.Date;

public class DateTest {
   public static void main(String[] args) {
       Date now = new Date();

       //This is just Date's toString method and doesn't involve SimpleDateFormat
       System.out.println("toString(): " + now);  // dow mon dd hh:mm:ss zzz yyyy
       //Shows  "Mon Oct 08 08:17:06 EDT 2012"

       SimpleDateFormat dateFormatter = new SimpleDateFormat("E, y-M-d 'at' h:m:s a z");
       System.out.println("Format 1:   " + dateFormatter.format(now));
       // Shows  "Mon, 2012-10-8 at 8:17:6 AM EDT"

       dateFormatter = new SimpleDateFormat("E yyyy.MM.dd 'at' hh:mm:ss a zzz");
       System.out.println("Format 2:   " + dateFormatter.format(now));
       // Shows  "Mon 2012.10.08 at 08:17:06 AM EDT"

       dateFormatter = new SimpleDateFormat("EEEE, MMMM d, yyyy");
       System.out.println("Format 3:   " + dateFormatter.format(now));
       // Shows  "Monday, October 8, 2012"

       // SimpleDateFormat can be used to control the date/time display format:
       //   E (day of week): 3E or fewer (in text xxx), >3E (in full text)
       //   M (month): M (in number), MM (in number with leading zero)
       //              3M: (in text xxx), >3M: (in full text full)
       //   h (hour): h, hh (with leading zero)
       //   m (minute)
       //   s (second)
       //   a (AM/PM)
       //   H (hour in 0 to 23)
       //   z (time zone)
       //  (there may be more listed under the API - I didn't check)

   }

}

Good luck!

You need to build a custom class-loader to do this or a third-party library that supports this. Your best bet is to extract the jar from the runtime and add them to the classpath (or have them already added to the classpath).

I'm not sure how far it will get you, but you can execute JavaScript one line at a time from the Developer Tool Console.

If you're happy to ignore the time portion in the columns, DATEDIFF() will give you the difference you're looking for in days.

SELECT DATEDIFF('2010-10-08 18:23:13', '2010-09-21 21:40:36') AS days;
+------+
| days |
+------+
|   17 |
+------+

This is another solution which I use:

public class CustomAnimator {
    private static final String TAG = "com.example.CustomAnimator";

    private static Stack<AnimationEntry> animation_stack    = new Stack<>();

    public static final int                 DIRECTION_LEFT  = 1;
    public static final int                 DIRECTION_RIGHT = -1;
    public static final int                 DIRECTION_UP    = 2;
    public static final int                 DIRECTION_DOWN  = -2;

    static class AnimationEntry {
        View in;
        View    out;
        int     direction;
        long    duration;
    }

    public static boolean hasHistory() {
        return !animation_stack.empty();
    }

    public static void reversePrevious() {
        if (!animation_stack.empty()) {
            AnimationEntry entry = animation_stack.pop();
            slide(entry.out, entry.in, -entry.direction, entry.duration, false);
        }
    }

    public static void clearHistory() {
        animation_stack.clear();
    }

    public static void slide(final View in, View out, final int direction, long duration) {
        slide(in, out, direction, duration, true);
    }

    private static void slide(final View in, final View out, final int direction, final long duration, final boolean save) {

        ViewGroup in_parent = (ViewGroup) in.getParent();
        ViewGroup out_parent = (ViewGroup) out.getParent();

        if (!in_parent.equals(out_parent)) {
            return;
        }

        int parent_width = in_parent.getWidth();
        int parent_height = in_parent.getHeight();

        ObjectAnimator slide_out;
        ObjectAnimator slide_in;

        switch (direction) {
            case DIRECTION_LEFT:
            default:
                slide_in = ObjectAnimator.ofFloat(in, "translationX", parent_width, 0);
                slide_out = ObjectAnimator.ofFloat(out, "translationX", 0, -out.getWidth());
                break;
            case DIRECTION_RIGHT:
                slide_in = ObjectAnimator.ofFloat(in, "translationX", -out.getWidth(), 0);
                slide_out = ObjectAnimator.ofFloat(out, "translationX", 0, parent_width);
                break;
            case DIRECTION_UP:
                slide_in = ObjectAnimator.ofFloat(in, "translationY", parent_height, 0);
                slide_out = ObjectAnimator.ofFloat(out, "translationY", 0, -out.getHeight());
                break;
            case DIRECTION_DOWN:
                slide_in = ObjectAnimator.ofFloat(in, "translationY", -out.getHeight(), 0);
                slide_out = ObjectAnimator.ofFloat(out, "translationY", 0, parent_height);
                break;
        }

        AnimatorSet animations = new AnimatorSet();
        animations.setDuration(duration);
        animations.playTogether(slide_in, slide_out);
        animations.addListener(new Animator.AnimatorListener() {

            @Override
            public void onAnimationCancel(Animator arg0) {
            }

            @Override
            public void onAnimationEnd(Animator arg0) {
                out.setVisibility(View.INVISIBLE);
                if (save) {
                    AnimationEntry ae = new AnimationEntry();
                    ae.in = in;
                    ae.out = out;
                    ae.direction = direction;
                    ae.duration = duration;
                    animation_stack.push(ae);
                }
            }

            @Override
            public void onAnimationRepeat(Animator arg0) {
            }

            @Override
            public void onAnimationStart(Animator arg0) {
                in.setVisibility(View.VISIBLE);
            }
        });
        animations.start();
    }
}

The usage of class. Let's say you have two fragments (list and details fragments)as shown below

<FrameLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:id="@+id/ui_container"
    android:layout_width="match_parent"
    android:layout_height="match_parent" >

    <FrameLayout
        android:id="@+id/list_container"
        android:layout_width="match_parent"
        android:layout_height="match_parent" />

    <FrameLayout
        android:id="@+id/details_container"
        android:layout_width="match_parent"
        android:layout_height="match_parent"
        android:visibility="gone" />
</FrameLayout>

Usage

View details_container = findViewById(R.id.details_container);
View list_container = findViewById(R.id.list_container);
// You can select the direction left/right/up/down and the duration
CustomAnimator.slide(list_container, details_container,CustomAnimator.DIRECTION_LEFT, 400);

You can use the function CustomAnimator.reversePrevious();to get the previous view when the user pressed back.

There's nothing wrong with saving the whole history in the database, they are prepared for that kind of tasks.

Actually you can find here in Stack Overflow a link to an example schema for a chat: example

If you are still worried for the size, you could apply some optimizations to group messages, like adding a buffer to your application that you only push after some time (like 1 minute or so); that way you would avoid having only 1 line messages

You can use primefaces library

 <p:spacer width="10" />

Just replace, with replace().

f = float("123,456.908".replace(',','')) print(type(f)

type() will show you that it has converted into a float

a combination of both solutions presented here:

using System;
using System.Collections.Generic;

namespace Mime
{
    class Mime
    {

        public static string GetMimeType(string fileName)
        {
            if (string.IsNullOrEmpty(fileName) || string.IsNullOrWhiteSpace(fileName))
            {
                throw new ArgumentNullException("filename must contain a filename");
            }
            string extension = System.IO.Path.GetExtension(fileName).ToLower();

            if (!extension.StartsWith("."))
            {
                extension = "." + extension;
            }


            string mime;

            if (_mappings.TryGetValue(extension, out mime))
                return mime;
            if (GetWindowsMimeType(extension, out mime))
            {
                _mappings.Add(extension, mime);
                return mime;
            }
            return "application/octet-stream";
        }

        public static bool GetWindowsMimeType(string ext, out string mime)
        {
            mime="application/octet-stream";
            Microsoft.Win32.RegistryKey regKey = Microsoft.Win32.Registry.ClassesRoot.OpenSubKey(ext);

            if (regKey != null)
            { 
             object val=regKey.GetValue("Content Type") ;
             if (val != null)
             {
                 string strval = val.ToString();
                 if(!(string.IsNullOrEmpty(strval)||string.IsNullOrWhiteSpace(strval)))
                 {
                     mime=strval;
                     return true;
                 }
             }
            }
            return false;
        }

        static IDictionary<string, string> _mappings = new Dictionary<string, string>(StringComparer.InvariantCultureIgnoreCase) {

        #region Big freaking list of mime types
        // combination of values from Windows 7 Registry and 
        // from C:\Windows\System32\inetsrv\config\applicationHost.config
        // some added, including .7z and .dat
        {".323", "text/h323"},
        {".3g2", "video/3gpp2"},
        {".3gp", "video/3gpp"},
        {".3gp2", "video/3gpp2"},
        {".3gpp", "video/3gpp"},
        {".7z", "application/x-7z-compressed"},
        {".aa", "audio/audible"},
        {".AAC", "audio/aac"},
        {".aaf", "application/octet-stream"},
        {".aax", "audio/vnd.audible.aax"},
        {".ac3", "audio/ac3"},
        {".aca", "application/octet-stream"},
        {".accda", "application/msaccess.addin"},
        {".accdb", "application/msaccess"},
        {".accdc", "application/msaccess.cab"},
        {".accde", "application/msaccess"},
        {".accdr", "application/msaccess.runtime"},
        {".accdt", "application/msaccess"},
        {".accdw", "application/msaccess.webapplication"},
        {".accft", "application/msaccess.ftemplate"},
        {".acx", "application/internet-property-stream"},
        {".AddIn", "text/xml"},
        {".ade", "application/msaccess"},
        {".adobebridge", "application/x-bridge-url"},
        {".adp", "application/msaccess"},
        {".ADT", "audio/vnd.dlna.adts"},
        {".ADTS", "audio/aac"},
        {".afm", "application/octet-stream"},
        {".ai", "application/postscript"},
        {".aif", "audio/x-aiff"},
        {".aifc", "audio/aiff"},
        {".aiff", "audio/aiff"},
        {".air", "application/vnd.adobe.air-application-installer-package+zip"},
        {".amc", "application/x-mpeg"},
        {".application", "application/x-ms-application"},
        {".art", "image/x-jg"},
        {".asa", "application/xml"},
        {".asax", "application/xml"},
        {".ascx", "application/xml"},
        {".asd", "application/octet-stream"},
        {".asf", "video/x-ms-asf"},
        {".ashx", "application/xml"},
        {".asi", "application/octet-stream"},
        {".asm", "text/plain"},
        {".asmx", "application/xml"},
        {".aspx", "application/xml"},
        {".asr", "video/x-ms-asf"},
        {".asx", "video/x-ms-asf"},
        {".atom", "application/atom+xml"},
        {".au", "audio/basic"},
        {".avi", "video/x-msvideo"},
        {".axs", "application/olescript"},
        {".bas", "text/plain"},
        {".bcpio", "application/x-bcpio"},
        {".bin", "application/octet-stream"},
        {".bmp", "image/bmp"},
        {".c", "text/plain"},
        {".cab", "application/octet-stream"},
        {".caf", "audio/x-caf"},
        {".calx", "application/vnd.ms-office.calx"},
        {".cat", "application/vnd.ms-pki.seccat"},
        {".cc", "text/plain"},
        {".cd", "text/plain"},
        {".cdda", "audio/aiff"},
        {".cdf", "application/x-cdf"},
        {".cer", "application/x-x509-ca-cert"},
        {".chm", "application/octet-stream"},
        {".class", "application/x-java-applet"},
        {".clp", "application/x-msclip"},
        {".cmx", "image/x-cmx"},
        {".cnf", "text/plain"},
        {".cod", "image/cis-cod"},
        {".config", "application/xml"},
        {".contact", "text/x-ms-contact"},
        {".coverage", "application/xml"},
        {".cpio", "application/x-cpio"},
        {".cpp", "text/plain"},
        {".crd", "application/x-mscardfile"},
        {".crl", "application/pkix-crl"},
        {".crt", "application/x-x509-ca-cert"},
        {".cs", "text/plain"},
        {".csdproj", "text/plain"},
        {".csh", "application/x-csh"},
        {".csproj", "text/plain"},
        {".css", "text/css"},
        {".csv", "text/csv"},
        {".cur", "application/octet-stream"},
        {".cxx", "text/plain"},
        {".dat", "application/octet-stream"},
        {".datasource", "application/xml"},
        {".dbproj", "text/plain"},
        {".dcr", "application/x-director"},
        {".def", "text/plain"},
        {".deploy", "application/octet-stream"},
        {".der", "application/x-x509-ca-cert"},
        {".dgml", "application/xml"},
        {".dib", "image/bmp"},
        {".dif", "video/x-dv"},
        {".dir", "application/x-director"},
        {".disco", "text/xml"},
        {".dll", "application/x-msdownload"},
        {".dll.config", "text/xml"},
        {".dlm", "text/dlm"},
        {".doc", "application/msword"},
        {".docm", "application/vnd.ms-word.document.macroEnabled.12"},
        {".docx", "application/vnd.openxmlformats-officedocument.wordprocessingml.document"},
        {".dot", "application/msword"},
        {".dotm", "application/vnd.ms-word.template.macroEnabled.12"},
        {".dotx", "application/vnd.openxmlformats-officedocument.wordprocessingml.template"},
        {".dsp", "application/octet-stream"},
        {".dsw", "text/plain"},
        {".dtd", "text/xml"},
        {".dtsConfig", "text/xml"},
        {".dv", "video/x-dv"},
        {".dvi", "application/x-dvi"},
        {".dwf", "drawing/x-dwf"},
        {".dwp", "application/octet-stream"},
        {".dxr", "application/x-director"},
        {".eml", "message/rfc822"},
        {".emz", "application/octet-stream"},
        {".eot", "application/octet-stream"},
        {".eps", "application/postscript"},
        {".etl", "application/etl"},
        {".etx", "text/x-setext"},
        {".evy", "application/envoy"},
        {".exe", "application/octet-stream"},
        {".exe.config", "text/xml"},
        {".fdf", "application/vnd.fdf"},
        {".fif", "application/fractals"},
        {".filters", "Application/xml"},
        {".fla", "application/octet-stream"},
        {".flr", "x-world/x-vrml"},
        {".flv", "video/x-flv"},
        {".fsscript", "application/fsharp-script"},
        {".fsx", "application/fsharp-script"},
        {".generictest", "application/xml"},
        {".gif", "image/gif"},
        {".group", "text/x-ms-group"},
        {".gsm", "audio/x-gsm"},
        {".gtar", "application/x-gtar"},
        {".gz", "application/x-gzip"},
        {".h", "text/plain"},
        {".hdf", "application/x-hdf"},
        {".hdml", "text/x-hdml"},
        {".hhc", "application/x-oleobject"},
        {".hhk", "application/octet-stream"},
        {".hhp", "application/octet-stream"},
        {".hlp", "application/winhlp"},
        {".hpp", "text/plain"},
        {".hqx", "application/mac-binhex40"},
        {".hta", "application/hta"},
        {".htc", "text/x-component"},
        {".htm", "text/html"},
        {".html", "text/html"},
        {".htt", "text/webviewhtml"},
        {".hxa", "application/xml"},
        {".hxc", "application/xml"},
        {".hxd", "application/octet-stream"},
        {".hxe", "application/xml"},
        {".hxf", "application/xml"},
        {".hxh", "application/octet-stream"},
        {".hxi", "application/octet-stream"},
        {".hxk", "application/xml"},
        {".hxq", "application/octet-stream"},
        {".hxr", "application/octet-stream"},
        {".hxs", "application/octet-stream"},
        {".hxt", "text/html"},
        {".hxv", "application/xml"},
        {".hxw", "application/octet-stream"},
        {".hxx", "text/plain"},
        {".i", "text/plain"},
        {".ico", "image/x-icon"},
        {".ics", "application/octet-stream"},
        {".idl", "text/plain"},
        {".ief", "image/ief"},
        {".iii", "application/x-iphone"},
        {".inc", "text/plain"},
        {".inf", "application/octet-stream"},
        {".inl", "text/plain"},
        {".ins", "application/x-internet-signup"},
        {".ipa", "application/x-itunes-ipa"},
        {".ipg", "application/x-itunes-ipg"},
        {".ipproj", "text/plain"},
        {".ipsw", "application/x-itunes-ipsw"},
        {".iqy", "text/x-ms-iqy"},
        {".isp", "application/x-internet-signup"},
        {".ite", "application/x-itunes-ite"},
        {".itlp", "application/x-itunes-itlp"},
        {".itms", "application/x-itunes-itms"},
        {".itpc", "application/x-itunes-itpc"},
        {".IVF", "video/x-ivf"},
        {".jar", "application/java-archive"},
        {".java", "application/octet-stream"},
        {".jck", "application/liquidmotion"},
        {".jcz", "application/liquidmotion"},
        {".jfif", "image/pjpeg"},
        {".jnlp", "application/x-java-jnlp-file"},
        {".jpb", "application/octet-stream"},
        {".jpe", "image/jpeg"},
        {".jpeg", "image/jpeg"},
        {".jpg", "image/jpeg"},
        {".js", "application/x-javascript"},
        {".jsx", "text/jscript"},
        {".jsxbin", "text/plain"},
        {".latex", "application/x-latex"},
        {".library-ms", "application/windows-library+xml"},
        {".lit", "application/x-ms-reader"},
        {".loadtest", "application/xml"},
        {".lpk", "application/octet-stream"},
        {".lsf", "video/x-la-asf"},
        {".lst", "text/plain"},
        {".lsx", "video/x-la-asf"},
        {".lzh", "application/octet-stream"},
        {".m13", "application/x-msmediaview"},
        {".m14", "application/x-msmediaview"},
        {".m1v", "video/mpeg"},
        {".m2t", "video/vnd.dlna.mpeg-tts"},
        {".m2ts", "video/vnd.dlna.mpeg-tts"},
        {".m2v", "video/mpeg"},
        {".m3u", "audio/x-mpegurl"},
        {".m3u8", "audio/x-mpegurl"},
        {".m4a", "audio/m4a"},
        {".m4b", "audio/m4b"},
        {".m4p", "audio/m4p"},
        {".m4r", "audio/x-m4r"},
        {".m4v", "video/x-m4v"},
        {".mac", "image/x-macpaint"},
        {".mak", "text/plain"},
        {".man", "application/x-troff-man"},
        {".manifest", "application/x-ms-manifest"},
        {".map", "text/plain"},
        {".master", "application/xml"},
        {".mda", "application/msaccess"},
        {".mdb", "application/x-msaccess"},
        {".mde", "application/msaccess"},
        {".mdp", "application/octet-stream"},
        {".me", "application/x-troff-me"},
        {".mfp", "application/x-shockwave-flash"},
        {".mht", "message/rfc822"},
        {".mhtml", "message/rfc822"},
        {".mid", "audio/mid"},
        {".midi", "audio/mid"},
        {".mix", "application/octet-stream"},
        {".mk", "text/plain"},
        {".mmf", "application/x-smaf"},
        {".mno", "text/xml"},
        {".mny", "application/x-msmoney"},
        {".mod", "video/mpeg"},
        {".mov", "video/quicktime"},
        {".movie", "video/x-sgi-movie"},
        {".mp2", "video/mpeg"},
        {".mp2v", "video/mpeg"},
        {".mp3", "audio/mpeg"},
        {".mp4", "video/mp4"},
        {".mp4v", "video/mp4"},
        {".mpa", "video/mpeg"},
        {".mpe", "video/mpeg"},
        {".mpeg", "video/mpeg"},
        {".mpf", "application/vnd.ms-mediapackage"},
        {".mpg", "video/mpeg"},
        {".mpp", "application/vnd.ms-project"},
        {".mpv2", "video/mpeg"},
        {".mqv", "video/quicktime"},
        {".ms", "application/x-troff-ms"},
        {".msi", "application/octet-stream"},
        {".mso", "application/octet-stream"},
        {".mts", "video/vnd.dlna.mpeg-tts"},
        {".mtx", "application/xml"},
        {".mvb", "application/x-msmediaview"},
        {".mvc", "application/x-miva-compiled"},
        {".mxp", "application/x-mmxp"},
        {".nc", "application/x-netcdf"},
        {".nsc", "video/x-ms-asf"},
        {".nws", "message/rfc822"},
        {".ocx", "application/octet-stream"},
        {".oda", "application/oda"},
        {".odc", "text/x-ms-odc"},
        {".odh", "text/plain"},
        {".odl", "text/plain"},
        {".odp", "application/vnd.oasis.opendocument.presentation"},
        {".ods", "application/oleobject"},
        {".odt", "application/vnd.oasis.opendocument.text"},
        {".one", "application/onenote"},
        {".onea", "application/onenote"},
        {".onepkg", "application/onenote"},
        {".onetmp", "application/onenote"},
        {".onetoc", "application/onenote"},
        {".onetoc2", "application/onenote"},
        {".orderedtest", "application/xml"},
        {".osdx", "application/opensearchdescription+xml"},
        {".p10", "application/pkcs10"},
        {".p12", "application/x-pkcs12"},
        {".p7b", "application/x-pkcs7-certificates"},
        {".p7c", "application/pkcs7-mime"},
        {".p7m", "application/pkcs7-mime"},
        {".p7r", "application/x-pkcs7-certreqresp"},
        {".p7s", "application/pkcs7-signature"},
        {".pbm", "image/x-portable-bitmap"},
        {".pcast", "application/x-podcast"},
        {".pct", "image/pict"},
        {".pcx", "application/octet-stream"},
        {".pcz", "application/octet-stream"},
        {".pdf", "application/pdf"},
        {".pfb", "application/octet-stream"},
        {".pfm", "application/octet-stream"},
        {".pfx", "application/x-pkcs12"},
        {".pgm", "image/x-portable-graymap"},
        {".pic", "image/pict"},
        {".pict", "image/pict"},
        {".pkgdef", "text/plain"},
        {".pkgundef", "text/plain"},
        {".pko", "application/vnd.ms-pki.pko"},
        {".pls", "audio/scpls"},
        {".pma", "application/x-perfmon"},
        {".pmc", "application/x-perfmon"},
        {".pml", "application/x-perfmon"},
        {".pmr", "application/x-perfmon"},
        {".pmw", "application/x-perfmon"},
        {".png", "image/png"},
        {".pnm", "image/x-portable-anymap"},
        {".pnt", "image/x-macpaint"},
        {".pntg", "image/x-macpaint"},
        {".pnz", "image/png"},
        {".pot", "application/vnd.ms-powerpoint"},
        {".potm", "application/vnd.ms-powerpoint.template.macroEnabled.12"},
        {".potx", "application/vnd.openxmlformats-officedocument.presentationml.template"},
        {".ppa", "application/vnd.ms-powerpoint"},
        {".ppam", "application/vnd.ms-powerpoint.addin.macroEnabled.12"},
        {".ppm", "image/x-portable-pixmap"},
        {".pps", "application/vnd.ms-powerpoint"},
        {".ppsm", "application/vnd.ms-powerpoint.slideshow.macroEnabled.12"},
        {".ppsx", "application/vnd.openxmlformats-officedocument.presentationml.slideshow"},
        {".ppt", "application/vnd.ms-powerpoint"},
        {".pptm", "application/vnd.ms-powerpoint.presentation.macroEnabled.12"},
        {".pptx", "application/vnd.openxmlformats-officedocument.presentationml.presentation"},
        {".prf", "application/pics-rules"},
        {".prm", "application/octet-stream"},
        {".prx", "application/octet-stream"},
        {".ps", "application/postscript"},
        {".psc1", "application/PowerShell"},
        {".psd", "application/octet-stream"},
        {".psess", "application/xml"},
        {".psm", "application/octet-stream"},
        {".psp", "application/octet-stream"},
        {".pub", "application/x-mspublisher"},
        {".pwz", "application/vnd.ms-powerpoint"},
        {".qht", "text/x-html-insertion"},
        {".qhtm", "text/x-html-insertion"},
        {".qt", "video/quicktime"},
        {".qti", "image/x-quicktime"},
        {".qtif", "image/x-quicktime"},
        {".qtl", "application/x-quicktimeplayer"},
        {".qxd", "application/octet-stream"},
        {".ra", "audio/x-pn-realaudio"},
        {".ram", "audio/x-pn-realaudio"},
        {".rar", "application/octet-stream"},
        {".ras", "image/x-cmu-raster"},
        {".rat", "application/rat-file"},
        {".rc", "text/plain"},
        {".rc2", "text/plain"},
        {".rct", "text/plain"},
        {".rdlc", "application/xml"},
        {".resx", "application/xml"},
        {".rf", "image/vnd.rn-realflash"},
        {".rgb", "image/x-rgb"},
        {".rgs", "text/plain"},
        {".rm", "application/vnd.rn-realmedia"},
        {".rmi", "audio/mid"},
        {".rmp", "application/vnd.rn-rn_music_package"},
        {".roff", "application/x-troff"},
        {".rpm", "audio/x-pn-realaudio-plugin"},
        {".rqy", "text/x-ms-rqy"},
        {".rtf", "application/rtf"},
        {".rtx", "text/richtext"},
        {".ruleset", "application/xml"},
        {".s", "text/plain"},
        {".safariextz", "application/x-safari-safariextz"},
        {".scd", "application/x-msschedule"},
        {".sct", "text/scriptlet"},
        {".sd2", "audio/x-sd2"},
        {".sdp", "application/sdp"},
        {".sea", "application/octet-stream"},
        {".searchConnector-ms", "application/windows-search-connector+xml"},
        {".setpay", "application/set-payment-initiation"},
        {".setreg", "application/set-registration-initiation"},
        {".settings", "application/xml"},
        {".sgimb", "application/x-sgimb"},
        {".sgml", "text/sgml"},
        {".sh", "application/x-sh"},
        {".shar", "application/x-shar"},
        {".shtml", "text/html"},
        {".sit", "application/x-stuffit"},
        {".sitemap", "application/xml"},
        {".skin", "application/xml"},
        {".sldm", "application/vnd.ms-powerpoint.slide.macroEnabled.12"},
        {".sldx", "application/vnd.openxmlformats-officedocument.presentationml.slide"},
        {".slk", "application/vnd.ms-excel"},
        {".sln", "text/plain"},
        {".slupkg-ms", "application/x-ms-license"},
        {".smd", "audio/x-smd"},
        {".smi", "application/octet-stream"},
        {".smx", "audio/x-smd"},
        {".smz", "audio/x-smd"},
        {".snd", "audio/basic"},
        {".snippet", "application/xml"},
        {".snp", "application/octet-stream"},
        {".sol", "text/plain"},
        {".sor", "text/plain"},
        {".spc", "application/x-pkcs7-certificates"},
        {".spl", "application/futuresplash"},
        {".src", "application/x-wais-source"},
        {".srf", "text/plain"},
        {".SSISDeploymentManifest", "text/xml"},
        {".ssm", "application/streamingmedia"},
        {".sst", "application/vnd.ms-pki.certstore"},
        {".stl", "application/vnd.ms-pki.stl"},
        {".sv4cpio", "application/x-sv4cpio"},
        {".sv4crc", "application/x-sv4crc"},
        {".svc", "application/xml"},
        {".swf", "application/x-shockwave-flash"},
        {".t", "application/x-troff"},
        {".tar", "application/x-tar"},
        {".tcl", "application/x-tcl"},
        {".testrunconfig", "application/xml"},
        {".testsettings", "application/xml"},
        {".tex", "application/x-tex"},
        {".texi", "application/x-texinfo"},
        {".texinfo", "application/x-texinfo"},
        {".tgz", "application/x-compressed"},
        {".thmx", "application/vnd.ms-officetheme"},
        {".thn", "application/octet-stream"},
        {".tif", "image/tiff"},
        {".tiff", "image/tiff"},
        {".tlh", "text/plain"},
        {".tli", "text/plain"},
        {".toc", "application/octet-stream"},
        {".tr", "application/x-troff"},
        {".trm", "application/x-msterminal"},
        {".trx", "application/xml"},
        {".ts", "video/vnd.dlna.mpeg-tts"},
        {".tsv", "text/tab-separated-values"},
        {".ttf", "application/octet-stream"},
        {".tts", "video/vnd.dlna.mpeg-tts"},
        {".txt", "text/plain"},
        {".u32", "application/octet-stream"},
        {".uls", "text/iuls"},
        {".user", "text/plain"},
        {".ustar", "application/x-ustar"},
        {".vb", "text/plain"},
        {".vbdproj", "text/plain"},
        {".vbk", "video/mpeg"},
        {".vbproj", "text/plain"},
        {".vbs", "text/vbscript"},
        {".vcf", "text/x-vcard"},
        {".vcproj", "Application/xml"},
        {".vcs", "text/plain"},
        {".vcxproj", "Application/xml"},
        {".vddproj", "text/plain"},
        {".vdp", "text/plain"},
        {".vdproj", "text/plain"},
        {".vdx", "application/vnd.ms-visio.viewer"},
        {".vml", "text/xml"},
        {".vscontent", "application/xml"},
        {".vsct", "text/xml"},
        {".vsd", "application/vnd.visio"},
        {".vsi", "application/ms-vsi"},
        {".vsix", "application/vsix"},
        {".vsixlangpack", "text/xml"},
        {".vsixmanifest", "text/xml"},
        {".vsmdi", "application/xml"},
        {".vspscc", "text/plain"},
        {".vss", "application/vnd.visio"},
        {".vsscc", "text/plain"},
        {".vssettings", "text/xml"},
        {".vssscc", "text/plain"},
        {".vst", "application/vnd.visio"},
        {".vstemplate", "text/xml"},
        {".vsto", "application/x-ms-vsto"},
        {".vsw", "application/vnd.visio"},
        {".vsx", "application/vnd.visio"},
        {".vtx", "application/vnd.visio"},
        {".wav", "audio/wav"},
        {".wave", "audio/wav"},
        {".wax", "audio/x-ms-wax"},
        {".wbk", "application/msword"},
        {".wbmp", "image/vnd.wap.wbmp"},
        {".wcm", "application/vnd.ms-works"},
        {".wdb", "application/vnd.ms-works"},
        {".wdp", "image/vnd.ms-photo"},
        {".webarchive", "application/x-safari-webarchive"},
        {".webtest", "application/xml"},
        {".wiq", "application/xml"},
        {".wiz", "application/msword"},
        {".wks", "application/vnd.ms-works"},
        {".WLMP", "application/wlmoviemaker"},
        {".wlpginstall", "application/x-wlpg-detect"},
        {".wlpginstall3", "application/x-wlpg3-detect"},
        {".wm", "video/x-ms-wm"},
        {".wma", "audio/x-ms-wma"},
        {".wmd", "application/x-ms-wmd"},
        {".wmf", "application/x-msmetafile"},
        {".wml", "text/vnd.wap.wml"},
        {".wmlc", "application/vnd.wap.wmlc"},
        {".wmls", "text/vnd.wap.wmlscript"},
        {".wmlsc", "application/vnd.wap.wmlscriptc"},
        {".wmp", "video/x-ms-wmp"},
        {".wmv", "video/x-ms-wmv"},
        {".wmx", "video/x-ms-wmx"},
        {".wmz", "application/x-ms-wmz"},
        {".wpl", "application/vnd.ms-wpl"},
        {".wps", "application/vnd.ms-works"},
        {".wri", "application/x-mswrite"},
        {".wrl", "x-world/x-vrml"},
        {".wrz", "x-world/x-vrml"},
        {".wsc", "text/scriptlet"},
        {".wsdl", "text/xml"},
        {".wvx", "video/x-ms-wvx"},
        {".x", "application/directx"},
        {".xaf", "x-world/x-vrml"},
        {".xaml", "application/xaml+xml"},
        {".xap", "application/x-silverlight-app"},
        {".xbap", "application/x-ms-xbap"},
        {".xbm", "image/x-xbitmap"},
        {".xdr", "text/plain"},
        {".xht", "application/xhtml+xml"},
        {".xhtml", "application/xhtml+xml"},
        {".xla", "application/vnd.ms-excel"},
        {".xlam", "application/vnd.ms-excel.addin.macroEnabled.12"},
        {".xlc", "application/vnd.ms-excel"},
        {".xld", "application/vnd.ms-excel"},
        {".xlk", "application/vnd.ms-excel"},
        {".xll", "application/vnd.ms-excel"},
        {".xlm", "application/vnd.ms-excel"},
        {".xls", "application/vnd.ms-excel"},
        {".xlsb", "application/vnd.ms-excel.sheet.binary.macroEnabled.12"},
        {".xlsm", "application/vnd.ms-excel.sheet.macroEnabled.12"},
        {".xlsx", "application/vnd.openxmlformats-officedocument.spreadsheetml.sheet"},
        {".xlt", "application/vnd.ms-excel"},
        {".xltm", "application/vnd.ms-excel.template.macroEnabled.12"},
        {".xltx", "application/vnd.openxmlformats-officedocument.spreadsheetml.template"},
        {".xlw", "application/vnd.ms-excel"},
        {".xml", "text/xml"},
        {".xmta", "application/xml"},
        {".xof", "x-world/x-vrml"},
        {".XOML", "text/plain"},
        {".xpm", "image/x-xpixmap"},
        {".xps", "application/vnd.ms-xpsdocument"},
        {".xrm-ms", "text/xml"},
        {".xsc", "application/xml"},
        {".xsd", "text/xml"},
        {".xsf", "text/xml"},
        {".xsl", "text/xml"},
        {".xslt", "text/xml"},
        {".xsn", "application/octet-stream"},
        {".xss", "application/xml"},
        {".xtp", "application/octet-stream"},
        {".xwd", "image/x-xwindowdump"},
        {".z", "application/x-compress"},
        {".zip", "application/x-zip-compressed"},
        #endregion

        };

    }
}

This seems to work moderately well in a terminal emulator window. It loops until there's a connection then stops.

#!/bin/bash

# ping in a loop until the net is up

declare -i s=0
declare -i m=0
while ! ping -c1 -w2 8.8.8.8 &> /dev/null ;
do
  echo "down" $m:$s
  sleep 10
  s=s+10
  if test $s -ge 60; then
    s=0
    m=m+1;
  fi
done
echo -e "--------->>  UP! (connect a speaker) <<--------" \\a

The \a at the end is trying to get a bel char on connect. I've been trying to do this in LXDE/lxpanel but everything halts until I have a network connection again. Having a time started out as a progress indicator because if you look at a window with just "down" on every line you can't even tell it's moving.

You can pass a numpy array or matrix as an argument when initializing a sparse matrix. For a CSR matrix, for example, you can do the following.

>>> import numpy as np
>>> from scipy import sparse
>>> A = np.array([[1,2,0],[0,0,3],[1,0,4]])
>>> B = np.matrix([[1,2,0],[0,0,3],[1,0,4]])

>>> A
array([[1, 2, 0],
       [0, 0, 3],
       [1, 0, 4]])

>>> sA = sparse.csr_matrix(A)   # Here's the initialization of the sparse matrix.
>>> sB = sparse.csr_matrix(B)

>>> sA
<3x3 sparse matrix of type '<type 'numpy.int32'>'
        with 5 stored elements in Compressed Sparse Row format>

>>> print sA
  (0, 0)        1
  (0, 1)        2
  (1, 2)        3
  (2, 0)        1
  (2, 2)        4

As an even easier solution, you could just use:

$results = $objects.Name

Which should fill $results with an array of all the 'Name' property values of the elements in $objects.

I ran into the same question and the simple answer is:

• $this requires an instance of the class
• self:: doesn't

Whenever you are using static methods or static attributes and want to call them without having an object of the class instantiated you need to use self: to call them, because $this always requires on object to be created.

From Oracle documentation page on ScheduledThreadPoolExecutor

A ThreadPoolExecutor that can additionally schedule commands to run after a given delay, or to execute periodically. This class is preferable to Timer when multiple worker threads are needed, or when the additional flexibility or capabilities of ThreadPoolExecutor (which this class extends) are required.

ExecutorService/ThreadPoolExecutor or ScheduledThreadPoolExecutor is obvious choice when you have multiple worker threads.

Pros of ExecutorService over Timer

1. Timer can't take advantage of available CPU cores unlike ExecutorService especially with multiple tasks using flavours of ExecutorService like ForkJoinPool
2. ExecutorService provides collaborative API if you need coordination between multiple tasks. Assume that you have to submit N number of worker tasks and wait for completion of all of them. You can easily achieve it with invokeAll API. If you want to achieve the same with multiple Timer tasks, it would be not simple.

3. ThreadPoolExecutor provides better API for management of Thread life cycle.

   Thread pools address two different problems: they usually provide improved performance when executing large numbers of asynchronous tasks, due to reduced per-task invocation overhead, and they provide a means of bounding and managing the resources, including threads, consumed when executing a collection of tasks. Each ThreadPoolExecutor also maintains some basic statistics, such as the number of completed tasks

   Few advantages:

   a. You can create/manage/control life cycle of Threads & optimize thread creation cost overheads

   b. You can control processing of tasks ( Work Stealing, ForkJoinPool, invokeAll) etc.

   c. You can monitor the progress and health of threads

   d. Provides better exception handling mechanism

You can use the string.replace method

string.replace("character to be removed", "character to be replaced with")

Dim strName As String
strName.Replace("[", "")

 var text = File.ReadAllText(file, Encoding.GetEncoding(codePage));

List of codepages : http://msdn.microsoft.com/en-us/library/windows/desktop/dd317756(v=vs.85).aspx

RoboSpice Vs. Volley

From https://groups.google.com/forum/#!topic/robospice/QwVCfY_glOQ

• RoboSpice(RS) is service based and more respectful of Android philosophy than Volley. Volley is thread based and this is not the way background processing should take place on Android. Ultimately, you can dig down both libs and find that they are quite similar, but our way to do background processing is more Android oriented, it allow us, for instance, to tell users that RS is actually doing something in background, which would be hard for volley (actually it doesn't at all).
• RoboSpice and volley both offer nice features like prioritization, retry policies, request cancellation. But RS offers more : a more advanced caching and that's a big one, with cache management, request aggregation, more features like repluging to a pending request, dealing with cache expiry without relying on server headers, etc.
• RoboSpice does more outside of UI Thread : volley will deserialize your POJOs on the main thread, which is horrible to my mind. With RS your app will be more responsive.
• In terms of speed, we definitely need metrics. RS has gotten super fast now, but still we don't have figure to put here. Volley should theoretically be a bit faster, but RS is now massively parallel... who knows ?
• RoboSpice offers a large compatibility range with extensions. You can use it with okhttp, retrofit, ormlite (beta), jackson, jackson2, gson, xml serializer, google http client, spring android... Quite a lot. Volley can be used with ok http and uses gson. that's it.
• Volley offers more UI sugar that RS. Volley provides NetworkImageView, RS does provide a spicelist adapter. In terms of feature it's not so far, but I believe Volley is more advanced on this topic.
• More than 200 bugs have been solved in RoboSpice since its initial release. It's pretty robust and used heavily in production. Volley is less mature but its user base should be growing fast (Google effect).
• RoboSpice is available on maven central. Volley is hard to find ;)

For me nothing of the above worked, so I just downloaded all the files by hand from the web site http://www.nltk.org/nltk_data/ and I put them also by hand in a file "tokenizers" inside of "nltk_data" folder. Not a pretty solution but still a solution.

The solution provided by Justin should work. To be sure making use of SelectedIndex property will also help.

ddlColor.DataSource = from p in db.ProductTypes
                      where p.ProductID == pID
                      orderby p.Color
                      select new { p.Color };

ddlColor.DataTextField = "Color";
ddlColor.DataBind();

ddlColor.Items.Insert(0, new ListItem("Select Color", ""); 
ddlColor.SelectedIndex = 0;

In my experience, don't use ffmpeg for splitting/join. MP4Box, is faster and light than ffmpeg. Please tryit. Eg if you want to split a 1400mb MP4 file into two parts a 700mb you can use the following cmdl: MP4Box -splits 716800 input.mp4 eg for concatenating two files you can use:

MP4Box -cat file1.mp4 -cat file2.mp4 output.mp4

Or if you need split by time, use -splitx StartTime:EndTime:

MP4Box -add input.mp4 -splitx 0:15 -new split.mp4

I've simply toggled "Build Active Architecture Only" to "Yes" in the target's build settings, and it's OK now!

You didn't mention the version you're using, but if you're using rc5 or rc6, that "old" style of form has been deprecated. Take a look at this for guidance on the "new" forms techniques: https://angular.io/docs/ts/latest/guide/forms.html

what about standart (compare FULL Object)

PyDev->new PyDev Module->Module: unittest

import unittest


class Test(unittest.TestCase):


    def testName(self):
        obj1 = {1:1, 2:2}
        obj2 = {1:1, 2:2}
        self.maxDiff = None # sometimes is usefull
        self.assertDictEqual(d1, d2)

if __name__ == "__main__":
    #import sys;sys.argv = ['', 'Test.testName']

    unittest.main()

Best Way to Refresh Adapter/ListView on Android

Not only calling notifyDataSetChanged() will refresh the ListView data, setAdapter() must be called before to load the information correctly:

  listView.setAdapter(adapter);
  adapter.notifyDataSetChanged();

We will be looking at two approaches to achieve this. With and without using jQuery.

1. Using jQuery

You need to add a keyup function to both of your password and confirm password fields. The reason being that the text equality should be checked even if the password field changes. Thanks @kdjernigan for pointing that out

In this way, when you type in the field you will know if the password is same or not:

$('#password, #confirm_password').on('keyup', function () {
  if ($('#password').val() == $('#confirm_password').val()) {
    $('#message').html('Matching').css('color', 'green');
  } else 
    $('#message').html('Not Matching').css('color', 'red');
});

<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>
<label>password :
  <input name="password" id="password" type="password" />
</label>
<br>
<label>confirm password:
  <input type="password" name="confirm_password" id="confirm_password" />
  <span id='message'></span>
</label>

and here is the fiddle: http://jsfiddle.net/aelor/F6sEv/325/

2. Without using jQuery

We will use the onkeyup event of javascript on both the fields to achieve the same effect.

var check = function() {
  if (document.getElementById('password').value ==
    document.getElementById('confirm_password').value) {
    document.getElementById('message').style.color = 'green';
    document.getElementById('message').innerHTML = 'matching';
  } else {
    document.getElementById('message').style.color = 'red';
    document.getElementById('message').innerHTML = 'not matching';
  }
}

<label>password :
  <input name="password" id="password" type="password" onkeyup='check();' />
</label>
<br>
<label>confirm password:
  <input type="password" name="confirm_password" id="confirm_password"  onkeyup='check();' /> 
  <span id='message'></span>
</label>

and here is the fiddle: http://jsfiddle.net/aelor/F6sEv/324/

The following regex matches a '+' followed by n digits


    var mobileNumber = "+18005551212";
    var regex = new RegExp("^\\+[0-9]*$");
    var OK = regex.test(mobileNumber);

    if (OK) {
      console.log("is a phone number");
    } else {
      console.log("is NOT a phone number");  
    }

In Laravel you can add a function inside app/Helper/helper.php like

function formatDate($date = '', $format = 'Y-m-d'){
    if($date == '' || $date == null)
        return;

    return date($format,strtotime($date));
}

And call this function on any controller like this

$start_date = formatDate($start_date,'Y-m-d');

Hope it helps!

Here is a script you can use to merge your master branch into your current branch.

The script does the following:

• Switches to the master branch
• Pulls the master branch
• Switches back to your current branch
• Merges the master branch into your current branch

Save this code as a batch file (.bat) and place the script anywhere in your repository. Then click on it to run it and you are set.

:: This batch file pulls current master and merges into current branch

@echo off

:: Option to use the batch file outside the repo and pass the repo path as an arg
set repoPath=%1
cd %repoPath%

FOR /F "tokens=*" %%g IN ('git rev-parse --abbrev-ref HEAD') do (SET currentBranch=%%g)

echo current branch is %currentBranch%
echo switching to master
git checkout master
echo.
echo pulling origin master
git pull origin master
echo.
echo switching back to %currentBranch%
git checkout %currentBranch%
echo.
echo attemting merge master into %currentBranch%
git merge master
echo.
echo script finished successfully
PAUSE

var test = parseInt($("#testid").val(), 10);

You have to tell it you want the value of the input you are targeting.

And also, always provide the second argument (radix) to parseInt. It tries to be too clever and autodetect it if not provided and can lead to unexpected results.

Providing 10 assumes you are wanting a base 10 number.

This is what I would do if passed a string buffer to fill and I knew the buffer was big enough (ie at least 16 characters long):

sprintf(buffer, "%d.%d.%d.%d",
  (ip >> 24) & 0xFF,
  (ip >> 16) & 0xFF,
  (ip >>  8) & 0xFF,
  (ip      ) & 0xFF);

This would be slightly faster than creating a byte array first, and I think it is more readable. I would normally use snprintf, but IP addresses can't be more than 16 characters long including the terminating null.

Alternatively if I was asked for a function returning a char*:

char* IPAddressToString(int ip)
{
  char[] result = new char[16];

  sprintf(result, "%d.%d.%d.%d",
    (ip >> 24) & 0xFF,
    (ip >> 16) & 0xFF,
    (ip >>  8) & 0xFF,
    (ip      ) & 0xFF);

  return result;
}

"Chrome violations" don't represent errors in either Chrome or your own web app. They are instead warnings to help you improve your app. In this case, Long running JavaScript and took 83ms of runtime are alerting you there's probably an opportunity to speed up your script.

("Violation" is not the best terminology; it's used here to imply the script "violates" a pre-defined guideline, but "warning" or similar would be clearer. These messages first appeared in Chrome in early 2017 and should ideally have a "More info" prompt to elaborate on the meaning and give suggested actions to the developer. Hopefully those will be added in the future.)

Solution for safe and high secured encode anyone file in OpenSSL and command-line:

You should have ready some X.509 certificate for encrypt files in PEM format.

Encrypt file:

openssl smime -encrypt -binary -aes-256-cbc -in plainfile.zip -out encrypted.zip.enc -outform DER yourSslCertificate.pem

What is what:

• smime - ssl command for S/MIME utility (smime(1))
• -encrypt - chosen method for file process
• -binary - use safe file process. Normally the input message is converted to "canonical" format as required by the S/MIME specification, this switch disable it. It is necessary for all binary files (like a images, sounds, ZIP archives).
• -aes-256-cbc - chosen cipher AES in 256 bit for encryption (strong). If not specified 40 bit RC2 is used (very weak). (Supported ciphers)
• -in plainfile.zip - input file name
• -out encrypted.zip.enc - output file name
• -outform DER - encode output file as binary. If is not specified, file is encoded by base64 and file size will be increased by 30%.
• yourSslCertificate.pem - file name of your certificate's. That should be in PEM format.

That command can very effectively a strongly encrypt big files regardless of its format.
Known issue: Something wrong happens when you try encrypt huge file (>600MB). No error thrown, but encrypted file will be corrupted. Always verify each file! (or use PGP - that has bigger support for files encryption with public key)

Decrypt file:

openssl smime -decrypt -binary -in encrypted.zip.enc -inform DER -out decrypted.zip -inkey private.key -passin pass:your_password

What is what:

• -inform DER - same as -outform above
• -inkey private.key - file name of your private key. That should be in PEM format and can be encrypted by password.
• -passin pass:your_password - your password for private key encrypt. (passphrase arguments)

Using David's Instance Storage answer initially worked for me (on a m5d.2xlarge) however, after stopping the EC2 instance and turning it back on, I was unable to ssh in to the instance again.

The instance logs reported: "You are in emergency mode. After logging in, type "journalctl -xb" to view system logs, "systemctl reboot" to reboot, "systemctl default" or "exit" to boot into default mode. Press Enter for maintenance"

I instead followed the AWS instructions in this link and everything worked perfectly, including after turning the instance off and on again.

https://aws.amazon.com/premiumsupport/knowledge-center/ec2-memory-swap-file/

sudo dd if=/dev/zero of=/swapfile bs=1G count=4

sudo chmod 600 /swapfile

sudo mkswap /swapfile

sudo swapon /swapfile

sudo swapon -s

sudo vi /etc/fstab
/swapfile swap swap defaults 0 0

There is a way to increase character using ascii_letters from string package which ascii_letters is a string that contains all English alphabet, uppercase and lowercase:

>>> from string import ascii_letters
>>> ascii_letters[ascii_letters.index('a') + 1]
'b'
>>> ascii_letters
'abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ'

Also it can be done manually;

>>> letters = 'abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ'
>>> letters[letters.index('c') + 1]
'd'

I'm seeing the same thing. A quick google found this question and a bug on the chromium forums. It seems that the --user-data-dir flag is now required. Edit to add user-data-dir guide

you can use setAttribute function in Model to add a custom attribute

You don't need to bother with that. Just write

<input type="text" name="email" placeholder="[email protected]" size="30">

replace the value with placeholder

var temp="/yourapp/";
$(location).attr('href','http://abcd.com'+temp);

Try this... used as an alternative

To right align image within UIButton try below code

btn.contentHorizontalAlignment = .right

here is updated code of the redim preseve method with variabel declaration, hope @Control Freak is fine with it:)

Option explicit
'redim preserve both dimensions for a multidimension array *ONLY
Public Function ReDimPreserve(aArrayToPreserve As Variant, nNewFirstUBound As Variant, nNewLastUBound As Variant) As Variant
    Dim nFirst As Long
    Dim nLast As Long
    Dim nOldFirstUBound As Long
    Dim nOldLastUBound As Long

    ReDimPreserve = False
    'check if its in array first
    If IsArray(aArrayToPreserve) Then
        'create new array
        ReDim aPreservedArray(nNewFirstUBound, nNewLastUBound)
        'get old lBound/uBound
        nOldFirstUBound = UBound(aArrayToPreserve, 1)
        nOldLastUBound = UBound(aArrayToPreserve, 2)
        'loop through first
        For nFirst = LBound(aArrayToPreserve, 1) To nNewFirstUBound
            For nLast = LBound(aArrayToPreserve, 2) To nNewLastUBound
                'if its in range, then append to new array the same way
                If nOldFirstUBound >= nFirst And nOldLastUBound >= nLast Then
                    aPreservedArray(nFirst, nLast) = aArrayToPreserve(nFirst, nLast)
                End If
            Next
        Next
        'return the array redimmed
        If IsArray(aPreservedArray) Then ReDimPreserve = aPreservedArray
    End If
End Function

Also check that you are not using validation groups as that validation wouldnt fire if the validationgroup property was set and not explicitly called via

 Page.Validate({Insert validation group name here});

We have the following benefits of using IHttpActionResult over HttpResponseMessage:

1. By using the IHttpActionResult we are only concentrating on the data to be send not on the status code. So here the code will be cleaner and very easy to maintain.
2. Unit testing of the implemented controller method will be easier.
3. Uses async and await by default.

set myPATH="C:\Users\DEB\Downloads\10.1.1.0.4"
cd %myPATH%

• The single quotes do not indicate a string, they make it starts: 'C:\ instead of C:\ so

• %name% is the usual syntax for expanding a variable, the !name! syntax needs to be enabled using the command setlocal ENABLEDELAYEDEXPANSION first, or by running the command prompt with CMD /V:ON.

• Don't use PATH as your name, it is a system name that contains all the locations of executable programs. If you overwrite it, random bits of your script will stop working. If you intend to change it, you need to do set PATH=%PATH%;C:\Users\DEB\Downloads\10.1.1.0.4 to keep the current PATH content, and add something to the end.

To read one byte:

file.read(1)

8 bits is one byte.

I used google colab to run my models and everything was perfect untill i used inline tesorboard. With tensorboard inline, I had the same issue of "Module 'tensorflow' has no attribute 'contrib'".

It was able to run training when rebuild and reinstall the model using setup.py(research folder) after initialising tensorboard.

Install react-native-svg-transformer

npm i react-native-svg-transformer --save-dev

I'm using SVG as following and it works fine

import LOGOSVG from "assets/svg/logo.svg"

in render

<View>
  <LOGOSVG 
    width="100%"
    height="70%"
  />
</View>

Yarn is a recent package manager that probably deserves to be mentioned.
So, here it is: https://yarnpkg.com/

As far as I know it can fetch both npm and bower dependencies and has other appreciated features.

easy enough to use the unname() function:

data.frame <- unname(data.frame)

Had the very same issue this week when I accidentally committed, then tried to remove a build file from a shared repository, and this:

http://gitready.com/intermediate/2009/02/18/temporarily-ignoring-files.html

has worked fine for me and not mentioned so far.

git update-index --assume-unchanged <file>

To remove the file you're interested in from version control, then use all your other commands as normal.

git update-index --no-assume-unchanged <file>

If you ever wanted to put it back in.

Edit: please see comments from Chris Johnsen and KPM, this only works locally and the file remains under version control for other users if they don't also do it. The accepted answer gives more complete/correct methods for dealing with this. Also some notes from the link if using this method:

Obviously there’s quite a few caveats that come into play with this. If you git add the file directly, it will be added to the index. Merging a commit with this flag on will cause the merge to fail gracefully so you can handle it manually.

You can use require with the path to the global module directory as an argument.

require('/path/to/global/node_modules/the_module');

On my mac, I use this:

require('/usr/local/lib/node_modules/the_module');

How to find where your global modules are? --> Where does npm install packages?

If you assume just one result you could do this as in Edwin suggested by using specific users id.

$someUserId = 'abc123';

$stmt = $mysqli->prepare("SELECT ssfullname, ssemail FROM userss WHERE user_id = ?");
$stmt->bind_param('s', $someUserId);

$stmt->execute();

$stmt->bind_result($ssfullname, $ssemail);
$stmt->store_result();
$stmt->fetch();

ChromePhp::log($ssfullname, $ssemail); //log result in chrome if ChromePhp is used.

OR as "Your Common Sense" which selects just one user.

$stmt = $mysqli->prepare("SELECT ssfullname, ssemail FROM userss ORDER BY ssid LIMIT 1");

$stmt->execute();
$stmt->bind_result($ssfullname, $ssemail);
$stmt->store_result();
$stmt->fetch();

Nothing really different from the above except for PHP v.5

If you are connecting to the MySQL using remote machine(Example workbench) etc., use following steps to eliminate this error on OS where MySQL is installed

mysql -u root -p

CREATE USER '<<username>>'@'%%' IDENTIFIED BY '<<password>>';
GRANT ALL PRIVILEGES ON * . * TO '<<username>>'@'%%';
FLUSH PRIVILEGES;

Try logging into the MYSQL instance.
This worked for me to eliminate this error.

I find this code useful when I need a path outside of a controller, such as when I'm initializing components in Global.asax.cs:

HostingEnvironment.MapPath("~/Data/data.html")

I found that for IE, you must add the draggable="false" attribute to images and anchors to prevent dragging. the CSS options work for all other browsers. I did this in jQuery:

$("a").attr('draggable', false); 
$("img").attr('draggable', false);

You can use the CSS3 Linear Gradient property along with your background-image like this:

#landing-wrapper {
    display:table;
    width:100%;
    background: linear-gradient( rgba(0, 0, 0, 0.5), rgba(0, 0, 0, 0.5) ), url('landingpagepic.jpg');
    background-position:center top;
    height:350px;
}

Here's a demo:

#landing-wrapper {_x000D_
  display: table;_x000D_
  width: 100%;_x000D_
  background: linear-gradient(rgba(0, 0, 0, 0.5), rgba(0, 0, 0, 0.5)), url('http://placehold.it/350x150');_x000D_
  background-position: center top;_x000D_
  height: 350px;_x000D_
  color: white;_x000D_
}

<div id="landing-wrapper">Lorem ipsum dolor ismet.</div>

The third template parameter for priority_queue is the comparator. Set it to use greater.

e.g.

std::priority_queue<int, std::vector<int>, std::greater<int> > max_queue;

You'll need #include <functional> for std::greater.

In the debugger you don't need to add back slashes, the input field understands the special chars.

In java code you need to escape the special chars

HTML:

<i class="icon-cog blackiconcolor">

css :

 .blackiconcolor {color:black;}

Using class will give you a free binding property which you can apply on any tag you require.

I have been there, like so many of us. There are so many confusing words like Web API, REST, RESTful, HTTP, SOAP, WCF, Web Services... and many more around this topic. But I am going to give brief explanation of only those which you have asked.

REST

It is neither an API nor a framework. It is just an architectural concept. You can find more details here.

RESTful

I have not come across any formal definition of RESTful anywhere. I believe it is just another buzzword for APIs to say if they comply with REST specifications.

EDIT: There is another trending open source initiative OpenAPI Specification (OAS) (formerly known as Swagger) to standardise REST APIs.

Web API

It in an open source framework for writing HTTP APIs. These APIs can be RESTful or not. Most HTTP APIs we write are not RESTful. This framework implements HTTP protocol specification and hence you hear terms like URIs, request/response headers, caching, versioning, various content types(formats).

Note: I have not used the term Web Services deliberately because it is a confusing term to use. Some people use this as a generic concept, I preferred to call them HTTP APIs. There is an actual framework named 'Web Services' by Microsoft like Web API. However it implements another protocol called SOAP.

You have to use == to compare (or even ===, if you want to compare types). A single = is for assignment.

if (one == 'rock' && two == 'rock') {
    console.log('Tie! Try again!');
}

The solution is using of the following JVM argument:

-Dlog4j.configuration={path to file}

If the file is NOT in the classpath (in WEB-INF/classes in case of Tomcat) but somewhere on you disk, use file:, like

-Dlog4j.configuration=file:C:\Users\me\log4j.xml

More information and examples here: http://logging.apache.org/log4j/1.2/manual.html

foreach($i=0; $i<10; $i++){
    $v = @(array)$v;   
    // this could help defining $v as an array. 
    //@ is to supress undefined variable $v

    array_push($v, $i);
}

The Regular Expression Way

If you need stricter replacement matching, PostgreSQL's regexp_replace function can match using POSIX regular expression patterns. It has the syntax regexp_replace(source, pattern, replacement [, flags ]).

I will use flags i and g for case-insensitive and global matching, respectively. I will also use \m and \M to match the beginning and the end of a word, respectively.

There are usually quite a few gotchas when performing regex replacment. Let's see how easy it is to replace a cat with a dog.

SELECT regexp_replace('Cat bobcat cat cats catfish', 'cat', 'dog');
-->                    Cat bobdog cat cats catfish

SELECT regexp_replace('Cat bobcat cat cats catfish', 'cat', 'dog', 'i');
-->                    dog bobcat cat cats catfish

SELECT regexp_replace('Cat bobcat cat cats catfish', 'cat', 'dog', 'g');
-->                    Cat bobdog dog dogs dogfish

SELECT regexp_replace('Cat bobcat cat cats catfish', 'cat', 'dog', 'gi');
-->                    dog bobdog dog dogs dogfish

SELECT regexp_replace('Cat bobcat cat cats catfish', '\mcat', 'dog', 'gi');
-->                    dog bobcat dog dogs dogfish

SELECT regexp_replace('Cat bobcat cat cats catfish', 'cat\M', 'dog', 'gi');
-->                    dog bobdog dog cats catfish

SELECT regexp_replace('Cat bobcat cat cats catfish', '\mcat\M', 'dog', 'gi');
-->                    dog bobcat dog cats catfish

SELECT regexp_replace('Cat bobcat cat cats catfish', '\mcat(s?)\M', 'dog\1', 'gi');
-->                    dog bobcat dog dogs catfish

Even after all of that, there is at least one unresolved condition. For example, sentences that begin with "Cat" will be replaced with lower-case "dog" which break sentence capitalization.

Check out the current PostgreSQL pattern matching docs for all the details.

Update entire column with replacement text

Given my examples, maybe the safest option would be:

UPDATE table SET field = regexp_replace(field, '\mcat\M', 'dog', 'gi');

Unlike many languages, Kotlin distinguishes between mutable and immutable collections (lists, sets, maps, etc). Precise control over exactly when collections can be edited is useful for eliminating bugs, and for designing good APIs.

https://kotlinlang.org/docs/reference/collections.html

You'll need to use a MutableList list.

class TempClass {
    var myList: MutableList<Int> = mutableListOf<Int>()
    fun doSomething() {
        // myList = ArrayList<Int>() // initializer is redundant
        myList.add(10)
        myList.remove(10)
    }
}

MutableList<Int> = arrayListOf() should also work.

You can set the horizontal alignment of ticklabels, see the example below. If you imagine a rectangular box around the rotated label, which side of the rectangle do you want to be aligned with the tickpoint?

Given your description, you want: ha='right'

n=5

x = np.arange(n)
y = np.sin(np.linspace(-3,3,n))
xlabels = ['Ticklabel %i' % i for i in range(n)]

fig, axs = plt.subplots(1,3, figsize=(12,3))

ha = ['right', 'center', 'left']

for n, ax in enumerate(axs):
    ax.plot(x,y, 'o-')
    ax.set_title(ha[n])
    ax.set_xticks(x)
    ax.set_xticklabels(xlabels, rotation=40, ha=ha[n])

It is now possible using:

@import 'CSS:directory/filename.css';

You need to make the call using $.ajax() to it synchronously, like this:

$.ajax({
  url: myUrl,
  dataType: 'json',
  async: false,
  data: myData,
  success: function(data) {
    //stuff
    //...
  }
});

This would match currently using $.getJSON() like this:

$.getJSON(myUrl, myData, function(data) { 
  //stuff
  //...
});

Why not use a regular expression ?

public static boolean toBoolean( String target )
{
    if( target == null ) return false;
    return target.matches( "(?i:^(1|true|yes|oui|vrai|y)$)" );
}

Or you can use GSON [https://code.google.com/p/google-gson/], where these null fields will be automatically removed.

SampleDTO.java

public class SampleDTO {

    String username;
    String email;
    String password;
    String birthday;
    String coinsPackage;
    String coins;
    String transactionId;
    boolean isLoggedIn;

    // getters/setters
}

Test.java

import com.google.gson.Gson;

public class Test {

    public static void main(String[] args) {
        SampleDTO objSampleDTO = new SampleDTO();
        Gson objGson = new Gson();
        System.out.println(objGson.toJson(objSampleDTO));
    }
}

OUTPUT:

{"isLoggedIn":false}

I used gson-2.2.4

Code for dealing with scope variables should go in controller, and service calls go to the service.

You can inject $rootScope for the purpose of using $rootScope.$broadcast and $rootScope.$on.

Otherwise avoid injecting $rootScope. See

• Common Pitfalls: $rootScope exists, but it can be used for evil.

I don't suppose performance matters much here, but I can't resist. The zip() function completely recopies both vectors (more of a matrix transpose, actually) just to get the data in "Pythonic" order. It would be interesting to time the nuts-and-bolts implementation:

import math
def cosine_similarity(v1,v2):
    "compute cosine similarity of v1 to v2: (v1 dot v2)/{||v1||*||v2||)"
    sumxx, sumxy, sumyy = 0, 0, 0
    for i in range(len(v1)):
        x = v1[i]; y = v2[i]
        sumxx += x*x
        sumyy += y*y
        sumxy += x*y
    return sumxy/math.sqrt(sumxx*sumyy)

v1,v2 = [3, 45, 7, 2], [2, 54, 13, 15]
print(v1, v2, cosine_similarity(v1,v2))

Output: [3, 45, 7, 2] [2, 54, 13, 15] 0.972284251712

That goes through the C-like noise of extracting elements one-at-a-time, but does no bulk array copying and gets everything important done in a single for loop, and uses a single square root.

ETA: Updated print call to be a function. (The original was Python 2.7, not 3.3. The current runs under Python 2.7 with a from __future__ import print_function statement.) The output is the same, either way.

CPYthon 2.7.3 on 3.0GHz Core 2 Duo:

>>> timeit.timeit("cosine_similarity(v1,v2)",setup="from __main__ import cosine_similarity, v1, v2")
2.4261788514654654
>>> timeit.timeit("cosine_measure(v1,v2)",setup="from __main__ import cosine_measure, v1, v2")
8.794677709375264

So, the unpythonic way is about 3.6 times faster in this case.

Content is what is passed as children. View is the template of the current component.

The view is initialized before the content and ngAfterViewInit() is therefore called before ngAfterContentInit().

** ngAfterViewInit() is called when the bindings of the children directives (or components) have been checked for the first time. Hence its perfect for accessing and manipulating DOM with Angular 2 components. As @Günter Zöchbauer mentioned before is correct @ViewChild() hence runs fine inside it.

Example:

@Component({
    selector: 'widget-three',
    template: `<input #input1 type="text">`
})
export class WidgetThree{
    @ViewChild('input1') input1;

    constructor(private renderer:Renderer){}

    ngAfterViewInit(){
        this.renderer.invokeElementMethod(
            this.input1.nativeElement,
            'focus',
            []
        )
    }
}

Show commits and commit contents from other-branch that are not in your current branch:

git show @..other-branch

Additionally you can apply the commits from other-branch directly to your current branch:

git cherry-pick @..other-branch

You can create your own function

function emailValidate(email){
    var check = "" + email;
    if((check.search('@')>=0)&&(check.search(/\./)>=0))
        if(check.search('@')<check.split('@')[1].search(/\./)+check.search('@')) return true;
        else return false;
    else return false;
}

alert(emailValidate('[email protected]'));

if you happen to not have a graphical interface available you can also print out the commit graph on the command line:

git log --oneline --graph --decorate --all

if this command complains with an invalid option --oneline, use:

git log --pretty=oneline --graph --decorate --all

You can close the connection with

mongoose.connection.close()

The Pumping lemma for regular languages is the reason why you can't do that.

The generated automaton will have a finite number of states, say k, so a string of k+1 opening braces is bound to have a state repeated somewhere (as the automaton processes the characters). The part of the string between the same state can be duplicated infinitely many times and the automaton will not know the difference.

In particular, if it accepts k+1 opening braces followed by k+1 closing braces (which it should) it will also accept the pumped number of opening braces followed by unchanged k+1 closing brases (which it shouldn't).

In pre-clean phase I execute with Maven Unlocker program. This program unlock all files and directory for anyone program.

I execute this with maven-antrun-plugin and only in windows systems

<profile>
  <activation>
    <os>
      <family>windows</family>
    </os>
  </activation>
  <build>
    <plugins>
      <plugin>
        <artifactId>maven-antrun-plugin</artifactId>
        <version>1.8</version>
        <executions>
          <execution>
            <phase>pre-clean</phase>
            <configuration>
              <tasks>
                <exec dir="${project.build.directory}" executable="cmd" failonerror="false">
                  <arg value="Unlocker.exe" />
                  <arg value="/S" />
                </exec>
              </tasks>
            </configuration>
            <goals>
              <goal>run</goal>
            </goals>
          </execution>
        </executions>
      </plugin>
    </plugins>
  </build>
</profile>

Spring sets the default content-type to octet-stream when the response is missing that field. All you need to do is to add a message converter to fix this.

I am using Ubuntu 14.04 and this solves the issue for me

sudo apt-get build-dep python3-lxml
sudo apt-get install libxml2-dev libxslt-dev python-dev

If you are using PHP's password_hash() with the PASSWORD_DEFAULT algorithm to generate the bcrypt hash (which I would assume is a large percentage of people reading this question) be sure to keep in mind that in the future password_hash() might use a different algorithm as the default and this could therefore affect the length of the hash (but it may not necessarily be longer).

From the manual page:

Note that this constant is designed to change over time as new and stronger algorithms are added to PHP. For that reason, the length of the result from using this identifier can change over time. Therefore, it is recommended to store the result in a database column that can expand beyond 60 characters (255 characters would be a good choice).

Using bcrypt, even if you have 1 billion users (i.e. you're currently competing with facebook) to store 255 byte password hashes it would only ~255 GB of data - about the size of a smallish SSD hard drive. It is extremely unlikely that storing the password hash is going to be the bottleneck in your application. However in the off chance that storage space really is an issue for some reason, you can use PASSWORD_BCRYPT to force password_hash() to use bcrypt, even if that's not the default. Just be sure to stay informed about any vulnerabilities found in bcrypt and review the release notes every time a new PHP version is released. If the default algorithm is ever changed it would be good to review why and make an informed decision whether to use the new algorithm or not.

In angular 7 got this fixed by adding these lines to .module.ts file:

import { CommonModule } from '@angular/common'; imports: [CommonModule]

Reviewing the basic terminology

It's usually good enough - unless you're programming assembly - to envisage a pointer containing a numeric memory address, with 1 referring to the second byte in the process's memory, 2 the third, 3 the fourth and so on....

• What happened to 0 and the first byte? Well, we'll get to that later - see null pointers below.
• For a more accurate definition of what pointers store, and how memory and addresses relate, see "More about memory addresses, and why you probably don't need to know" at the end of this answer.

When you want to access the data/value in the memory that the pointer points to - the contents of the address with that numerical index - then you dereference the pointer.

Different computer languages have different notations to tell the compiler or interpreter that you're now interested in the pointed-to object's (current) value - I focus below on C and C++.

A pointer scenario

Consider in C, given a pointer such as p below...

const char* p = "abc";

...four bytes with the numerical values used to encode the letters 'a', 'b', 'c', and a 0 byte to denote the end of the textual data, are stored somewhere in memory and the numerical address of that data is stored in p. This way C encodes text in memory is known as ASCIIZ.

For example, if the string literal happened to be at address 0x1000 and p a 32-bit pointer at 0x2000, the memory content would be:

Memory Address (hex)    Variable name    Contents
1000                                     'a' == 97 (ASCII)
1001                                     'b' == 98
1002                                     'c' == 99
1003                                     0
...
2000-2003               p                1000 hex

Note that there is no variable name/identifier for address 0x1000, but we can indirectly refer to the string literal using a pointer storing its address: p.

Dereferencing the pointer

To refer to the characters p points to, we dereference p using one of these notations (again, for C):

assert(*p == 'a');  // The first character at address p will be 'a'
assert(p[1] == 'b'); // p[1] actually dereferences a pointer created by adding
                     // p and 1 times the size of the things to which p points:
                     // In this case they're char which are 1 byte in C...
assert(*(p + 1) == 'b');  // Another notation for p[1]

You can also move pointers through the pointed-to data, dereferencing them as you go:

++p;  // Increment p so it's now 0x1001
assert(*p == 'b');  // p == 0x1001 which is where the 'b' is...

If you have some data that can be written to, then you can do things like this:

int x = 2;
int* p_x = &x;  // Put the address of the x variable into the pointer p_x
*p_x = 4;       // Change the memory at the address in p_x to be 4
assert(x == 4); // Check x is now 4

Above, you must have known at compile time that you would need a variable called x, and the code asks the compiler to arrange where it should be stored, ensuring the address will be available via &x.

Dereferencing and accessing a structure data member

In C, if you have a variable that is a pointer to a structure with data members, you can access those members using the -> dereferencing operator:

typedef struct X { int i_; double d_; } X;
X x;
X* p = &x;
p->d_ = 3.14159;  // Dereference and access data member x.d_
(*p).d_ *= -1;    // Another equivalent notation for accessing x.d_

Multi-byte data types

To use a pointer, a computer program also needs some insight into the type of data that is being pointed at - if that data type needs more than one byte to represent, then the pointer normally points to the lowest-numbered byte in the data.

So, looking at a slightly more complex example:

double sizes[] = { 10.3, 13.4, 11.2, 19.4 };
double* p = sizes;
assert(p[0] == 10.3);  // Knows to look at all the bytes in the first double value
assert(p[1] == 13.4);  // Actually looks at bytes from address p + 1 * sizeof(double)
                       // (sizeof(double) is almost always eight bytes)
++p;                   // Advance p by sizeof(double)
assert(*p == 13.4);    // The double at memory beginning at address p has value 13.4
*(p + 2) = 29.8;       // Change sizes[3] from 19.4 to 29.8
                       // Note earlier ++p and + 2 here => sizes[3]

Pointers to dynamically allocated memory

Sometimes you don't know how much memory you'll need until your program is running and sees what data is thrown at it... then you can dynamically allocate memory using malloc. It is common practice to store the address in a pointer...

int* p = (int*)malloc(sizeof(int)); // Get some memory somewhere...
*p = 10;            // Dereference the pointer to the memory, then write a value in
fn(*p);             // Call a function, passing it the value at address p
(*p) += 3;          // Change the value, adding 3 to it
free(p);            // Release the memory back to the heap allocation library

In C++, memory allocation is normally done with the new operator, and deallocation with delete:

int* p = new int(10); // Memory for one int with initial value 10
delete p;

p = new int[10];      // Memory for ten ints with unspecified initial value
delete[] p;

p = new int[10]();    // Memory for ten ints that are value initialised (to 0)
delete[] p;

See also C++ smart pointers below.

Losing and leaking addresses

Often a pointer may be the only indication of where some data or buffer exists in memory. If ongoing use of that data/buffer is needed, or the ability to call free() or delete to avoid leaking the memory, then the programmer must operate on a copy of the pointer...

const char* p = asprintf("name: %s", name);  // Common but non-Standard printf-on-heap

// Replace non-printable characters with underscores....
for (const char* q = p; *q; ++q)
    if (!isprint(*q))
        *q = '_';

printf("%s\n", p); // Only q was modified
free(p);

...or carefully orchestrate reversal of any changes...

const size_t n = ...;
p += n;
...
p -= n;  // Restore earlier value...
free(p);

C++ smart pointers

In C++, it's best practice to use smart pointer objects to store and manage the pointers, automatically deallocating them when the smart pointers' destructors run. Since C++11 the Standard Library provides two, unique_ptr for when there's a single owner for an allocated object...

{
    std::unique_ptr<T> p{new T(42, "meaning")};
    call_a_function(p);
    // The function above might throw, so delete here is unreliable, but...
} // p's destructor's guaranteed to run "here", calling delete

...and shared_ptr for share ownership (using reference counting)...

{
    auto p = std::make_shared<T>(3.14, "pi");
    number_storage1.may_add(p); // Might copy p into its container
    number_storage2.may_add(p); // Might copy p into its container    } // p's destructor will only delete the T if neither may_add copied it

Null pointers

In C, NULL and 0 - and additionally in C++ nullptr - can be used to indicate that a pointer doesn't currently hold the memory address of a variable, and shouldn't be dereferenced or used in pointer arithmetic. For example:

const char* p_filename = NULL; // Or "= 0", or "= nullptr" in C++
int c;
while ((c = getopt(argc, argv, "f:")) != -1)
    switch (c) {
      case f: p_filename = optarg; break;
    }
if (p_filename)  // Only NULL converts to false
    ...   // Only get here if -f flag specified

In C and C++, just as inbuilt numeric types don't necessarily default to 0, nor bools to false, pointers are not always set to NULL. All these are set to 0/false/NULL when they're static variables or (C++ only) direct or indirect member variables of static objects or their bases, or undergo zero initialisation (e.g. new T(); and new T(x, y, z); perform zero-initialisation on T's members including pointers, whereas new T; does not).

Further, when you assign 0, NULL and nullptr to a pointer the bits in the pointer are not necessarily all reset: the pointer may not contain "0" at the hardware level, or refer to address 0 in your virtual address space. The compiler is allowed to store something else there if it has reason to, but whatever it does - if you come along and compare the pointer to 0, NULL, nullptr or another pointer that was assigned any of those, the comparison must work as expected. So, below the source code at the compiler level, "NULL" is potentially a bit "magical" in the C and C++ languages...

More about memory addresses, and why you probably don't need to know

More strictly, initialised pointers store a bit-pattern identifying either NULL or a (often virtual) memory address.

The simple case is where this is a numeric offset into the process's entire virtual address space; in more complex cases the pointer may be relative to some specific memory area, which the CPU may select based on CPU "segment" registers or some manner of segment id encoded in the bit-pattern, and/or looking in different places depending on the machine code instructions using the address.

For example, an int* properly initialised to point to an int variable might - after casting to a float* - access memory in "GPU" memory quite distinct from the memory where the int variable is, then once cast to and used as a function pointer it might point into further distinct memory holding machine opcodes for the program (with the numeric value of the int* effectively a random, invalid pointer within these other memory regions).

3GL programming languages like C and C++ tend to hide this complexity, such that:

• If the compiler gives you a pointer to a variable or function, you can dereference it freely (as long as the variable's not destructed/deallocated meanwhile) and it's the compiler's problem whether e.g. a particular CPU segment register needs to be restored beforehand, or a distinct machine code instruction used

• If you get a pointer to an element in an array, you can use pointer arithmetic to move anywhere else in the array, or even to form an address one-past-the-end of the array that's legal to compare with other pointers to elements in the array (or that have similarly been moved by pointer arithmetic to the same one-past-the-end value); again in C and C++, it's up to the compiler to ensure this "just works"

• Specific OS functions, e.g. shared memory mapping, may give you pointers, and they'll "just work" within the range of addresses that makes sense for them

• Attempts to move legal pointers beyond these boundaries, or to cast arbitrary numbers to pointers, or use pointers cast to unrelated types, typically have undefined behaviour, so should be avoided in higher level libraries and applications, but code for OSes, device drivers, etc. may need to rely on behaviour left undefined by the C or C++ Standard, that is nevertheless well defined by their specific implementation or hardware.

size_t is 64 bit normally on 64 bit machine

You can just write

input()

at the end of your code

therefore when you run you script it will wait for you to enter something

{ENTER for example}

Same with something more complex...getting the ec2 instance region from within the instance.

INSTANCE_REGION=$(curl -s 'http://169.254.169.254/latest/dynamic/instance-identity/document' | python -c "import sys, json; print json.load(sys.stdin)['region']")

echo $INSTANCE_REGION

I assume you are executing all of the above code each time you write something to the file. Each time the stream for the file is opened, its seek pointer is positioned at the beginning so all writes end up overwriting what was there before.

You can solve the problem in two ways: either with the convenient

file2 = new StreamWriter("c:/file.txt", true);

or by explicitly repositioning the stream pointer yourself:

file2 = new StreamWriter("c:/file.txt");
file2.BaseStream.Seek(0, SeekOrigin.End);

I always use the isoformat() function for this.

from datetime import date    
today = date.today().isoformat()
print(today) # '2018-12-05'

Note that this also works on datetime objects if you need the time in standard format as well.

from datetime import datetime
now = datetime.today().isoformat()
print(now) # '2018-12-05T11:15:55.126382'

String formatting using % is a great way to handle this. Here are some examples.

The formatting code '%s' converts '12345' to a string, but it's already a string.

>>> '%s' % '12345'

'12345'

'%.3s' specifies to use only the first three characters.

>>> '%.3s' % '12345'

'123'

'%.7s' says to use the first seven characters, but there are only five. No problem.

>>> '%.7s' % '12345'

'12345'

'%7s' uses up to seven characters, filling missing characters with spaces on the left.

>>> '%7s' % '12345'

'  12345'

'%-7s' is the same thing, except filling missing characters on the right.

>>> '%-7s' % '12345'

'12345  '

'%5.3' says use the first three characters, but fill it with spaces on the left to total five characters.

>>> '%5.3s' % '12345'

'  123'

Same thing except filling on the right.

>>> '%-5.3s' % '12345'

'123  '

Can handle multiple arguments too!

>>> 'do u no %-4.3sda%3.2s wae' % ('12345', 6789)

'do u no 123 da 67 wae'

If you require even more flexibility, str.format() is available too. Here is documentation for both.

For the record, I think this is more of what he was looking for…

    UIBarButtonItem *l_backButton = [[UIBarButtonItem alloc] initWithBarButtonSystemItem:UIBarButtonSystemItemRewind target:self action:@selector(backToRootView:)];

    self.navigationItem.leftBarButtonItem = l_backButton;


    - (void) backToRootView:(id)sender {

        // Perform some custom code

        [self.navigationController popToRootViewControllerAnimated:YES];
    }

Events are pretty easy in C#, but the MSDN docs in my opinion make them pretty confusing. Normally, most documentation you see discusses making a class inherit from the EventArgs base class and there's a reason for that. However, it's not the simplest way to make events, and for someone wanting something quick and easy, and in a time crunch, using the Action type is your ticket.

Creating Events & Subscribing To Them

1. Create your event on your class right after your class declaration.

public event Action<string,string,string,string>MyEvent;

2. Create your event handler class method in your class.

private void MyEventHandler(string s1,string s2,string s3,string s4)
{
  Console.WriteLine("{0} {1} {2} {3}",s1,s2,s3,s4);
}

3. Now when your class is invoked, tell it to connect the event to your new event handler. The reason the += operator is used is because you are appending your particular event handler to the event. You can actually do this with multiple separate event handlers, and when an event is raised, each event handler will operate in the sequence in which you added them.

class Example
{
  public Example() // I'm a C# style class constructor
  {
    MyEvent += new Action<string,string,string,string>(MyEventHandler);
  }
}

4. Now, when you're ready, trigger (aka raise) the event somewhere in your class code like so:

MyEvent("wow","this","is","cool");

The end result when you run this is that the console will emit "wow this is cool". And if you changed "cool" with a date or a sequence, and ran this event trigger multiple times, you'd see the result come out in a FIFO sequence like events should normally operate.

In this example, I passed 4 strings. But you could change those to any kind of acceptable type, or used more or less types, or even remove the <...> out and pass nothing to your event handler.

And, again, if you had multiple custom event handlers, and subscribed them all to your event with the += operator, then your event trigger would have called them all in sequence.

Identifying Event Callers

But what if you want to identify the caller to this event in your event handler? This is useful if you want an event handler that reacts with conditions based on who's raised/triggered the event. There are a few ways to do this. Below are examples that are shown in order by how fast they operate:

Option 1. (Fastest) If you already know it, then pass the name as a literal string to the event handler when you trigger it.

Option 2. (Somewhat Fast) Add this into your class and call it from the calling method, and then pass that string to the event handler when you trigger it:

private static string GetCaller([System.Runtime.CompilerServices.CallerMemberName] string s = null) => s;

Option 3. (Least Fast But Still Fast) In your event handler when you trigger it, get the calling method name string with this:

string callingMethod = new System.Diagnostics.StackTrace().GetFrame(1).GetMethod().ReflectedType.Name.Split('<', '>')[1];

Unsubscribing From Events

You may have a scenario where your custom event has multiple event handlers, but you want to remove one special one out of the list of event handlers. To do so, use the -= operator like so:

MyEvent -= MyEventHandler;

A word of minor caution with this, however. If you do this and that event no longer has any event handlers, and you trigger that event again, it will throw an exception. (Exceptions, of course, you can trap with try/catch blocks.)

Clearing All Events

Okay, let's say you're through with events and you don't want to process any more. Just set it to null like so:

MyEvent = null;

The same caution for Unsubscribing events is here, as well. If your custom event handler no longer has any events, and you trigger it again, your program will throw an exception.

I had a one-off data migration issue where the source data could not output correctly some unusual/technical characters plus the ubiquitous extra commas in CSVs.

We decided that for each such character the source extract should replace them with something that was recognisable to both the source system and the SQL Server that was loading them but which would not be in the data otherwise.

It did mean however that in various columns across various tables these replacement characters would appear and I would have to replace them. Nesting multiple REPLACE functions made the import code look scary and prone to errors in misjudging the placement and number of brackets so I wrote the following function. I know it can process a column in a table of 3,000 rows in less than a second though I'm not sure how quickly it will scale up to multi-million row tables.

create function [dbo].[udf_ReplaceMultipleChars]
(
    @OriginalString nvarchar(4000)
  , @ReplaceTheseChars nvarchar(100)
  , @LengthOfReplacement int = 1
)
returns nvarchar(4000)
begin

    declare @RevisedString nvarchar(4000) = N'';
    declare @lengthofinput int =
            (
            select len(@OriginalString)
            );

with AllNumbers
as (select 1 as  Number
    union all
    select Number + 1
    from AllNumbers
    where Number < @lengthofinput)
select @RevisedString += case
                             when (charindex(substring(@OriginalString, Number, 1), @ReplaceTheseChars, 1) - 1) % 2
    = 0 then
                                 substring(
                                              @ReplaceTheseChars
                                            , charindex(
                                                           substring(@OriginalString, Number, 1)
                                                         , @ReplaceTheseChars
                                                         , 1
                                                       ) + 1
                                            , @LengthOfReplacement
                                          )
                             else
                                 substring(@OriginalString, Number, 1)
                         end
    from AllNumbers
    option (maxrecursion 4000);
    return (@RevisedString);
end;

It works by submitting both the string to be evaluated and have characters to be replaced (@OriginalString) along with a string of paired characters where the first character is to be replaced by the second, the third by the fourth, fifth by sixth and so on (@ReplaceTheseChars).

Here is the string of chars that I needed to replace and their replacements... [']"~,{Ø}°$±|¼¦¼ª½¬½^¾#?

i.e. A opening square bracket denotes an apostrophe, a closing one a double quote. You can see that there were vulgar fractions as well as degrees and diameter symbols in there.

There is a default @LengthOfReplacement that is included as a starting point if anyone needed to replace longer strings. I played around with that in my project but the single char replacement was the main function.

The condition of the case statement is important. It ensures that it only replaces the character if it is found in your @ReplaceTheseChars variable and that the character has to be found in an odd numbered position (the minus 1 from charindex result ensures that anything NOT found returns a negative modulo value). i.e if you find a tilde (~) in position 5 it will replace it with a comma but if on a subsequent run it found the comma in position 6 it would not replace it with a curly bracket ({).

This can be best demonstrated with an example...

declare @ProductDescription nvarchar(20) = N'abc~def[¦][123';
select @ProductDescription
= dbo.udf_ReplaceMultipleChars(
                                  @ProductDescription
/* NB the doubling up of the apostrophe is necessary in the string but resolves to a single apostrophe when passed to the function */
                                ,'['']"~,{Ø}°$±|¼¦¼ª½¬½^¾#?' 
                                , default
                              );
select @ProductDescription
 , dbo.udf_ReplaceMultipleChars(
                                   @ProductDescription
                                 ,'['']"~,{Ø}°$±|¼¦¼ª½¬½^¾#?'
/* if you didn't know how to type those peculiar chars in then you can build a string like  this... '[' + nchar(0x0027) + ']"~,{' + nchar(0x00D8) + '}' + nchar(0x00B0) etc */
                                ,
                                 default
                               );

This will return both the value after the first pass through the function and the second time as follows... abc,def'¼"'123 abc,def'¼"'123

A table update would just be

update a
set a.Col1 = udf.ReplaceMultipleChars(a.Col1,'~,]"',1)
from TestTable a

Finally (I hear you say!), although I've not had access to the translate function I believe that this function can process the example shown in the documentation quite easily. The TRANSLATE function demo is

SELECT TRANSLATE('2*[3+4]/{7-2}', '[]{}', '()()');

which returns 2*(3+4)/(7-2) although I understand it might not work on 2*[3+4]/[7-2] !!

My function would approach this as follows listing each char to be replaced followed by its replacement [ --> (, { --> ( etc.

select dbo.udf_ReplaceMultipleChars('2*[3+4]/{7-2}', '[({(])})', 1);

which will also work for

select dbo.udf_ReplaceMultipleChars('2*[3+4]/[7-2]', '[({(])})', 1);

I hope someone finds this useful and if you get to test its performance against larger tables do let us know one way or another!

edit your ~/.vimrc

$ vim ~/.vimrc

add following lines :

set tabstop=4
set shiftwidth=4
set softtabstop=4
set expandtab

package main

import (
  "fmt"
)

func main() {
    var str1 = "string1"
    var str2 = "string2"
    out := fmt.Sprintf("%s %s ",str1, str2)
    fmt.Println(out)
}

Try writing the following batch file and executing it:

Echo one
cmd
Echo two
cmd
Echo three
cmd

Only the first two lines get executed. But if you type "exit" at the command prompt, the next two lines are processed. It's a shell loading another.

To be sure that this is not what is happening in your script, just type "exit" when the first command ends.

HTH!

Initially when i implemented a longClick and a click to perform two separate events the problem i face was that when i had a longclick , the application also performed the action to be performed for a simple click . The solution i realized was to change the return type of the longClick to true which is normally false by default . Change it and it works perfectly .

This never gonna work, you can't stringify your FormData object.

You should do this:

this.uploadFileToUrl = function(file, title, text, uploadUrl){
   var fd = new FormData();
   fd.append('title', title);
   fd.append('text', text);
   fd.append('file', file);

     $http.post(uploadUrl, obj, {
       transformRequest: angular.identity,
       headers: {'Content-Type': undefined}
     })
  .success(function(){
    blockUI.stop();
  })
  .error(function(error){
    toaster.pop('error', 'Errore', error);
  });
}

MagicTextView is very useful to make stroke font, but in my case, it cause error like this this error caused by duplication background attributes which set by MagicTextView

so you need to edit attrs.xml and MagicTextView.java

attrs.xml

<attr name="background" format="reference|color" />
 ?
<attr name="mBackground" format="reference|color" />

MagicTextView.java 88:95

if (a.hasValue(R.styleable.MagicTextView_mBackground)) {
Drawable background = a.getDrawable(R.styleable.MagicTextView_mBackground);
if (background != null) {
    this.setBackgroundDrawable(background);
} else {
    this.setBackgroundColor(a.getColor(R.styleable.MagicTextView_mBackground, 0xff000000));
}
}

Use the accept attribute of the input tag. So to accept only PNG's, JPEG's and GIF's you can use the following code:

<input type="file" name="myImage" accept="image/x-png,image/gif,image/jpeg" />

Or simply:

<input type="file" name="myImage" accept="image/*" />

Note that this only provides a hint to the browser as to what file-types to display to the user, but this can be easily circumvented, so you should always validate the uploaded file on the server also.

It should work in IE 10+, Chrome, Firefox, Safari 6+, Opera 15+, but support is very sketchy on mobiles (as of 2015) and by some reports, this may actually prevent some mobile browsers from uploading anything at all, so be sure to test your target platforms well.

For detailed browser support, see http://caniuse.com/#feat=input-file-accept

Inside Controller Action you can access HttpContext.Response. There you can set the response status as in the following listing.

[HttpPost]
public ActionResult PostViaAjax()
{
    var body = Request.BinaryRead(Request.TotalBytes);

    var result = Content(JsonError(new Dictionary<string, string>()
    {
        {"err", "Some error!"}
    }), "application/json; charset=utf-8");
    HttpContext.Response.StatusCode = (int)HttpStatusCode.BadRequest;
    return result;
}

I wouldn't even pay attention to the contents of the parens.

Just match any line that starts with for and ends with semi-colon:

^\t*for.+;$

Unless you've got for statements split over multiple lines, that will work fine?

In MonoDroid / Xamarin.Android you can do:

 var resourceId = Resources.GetIdentifier("icon", "drawable", PackageName);

But since GetIdentifier it's not recommended in Android - you can use Reflection like this:

 var resourceId = (int)typeof(Resource.Drawable).GetField("icon").GetValue(null);

where I suggest to put a try/catch or verify the strings you are passing.

select  sql_text, count(*) as "OPEN CURSORS", user_name from v$open_cursor
group by sql_text, user_name order by count(*) desc;

appears to work for me.

See ?order. You just need the last index (or first, in decreasing order), so this should do the trick:

order(matrix[,2],decreasing=T)[1]

Yes. You can get an element by its ID by calling document.getElementById. It will return an element node if found, and null otherwise:

var x = document.getElementById("elementid");   // Get the element with id="elementid"
x.style.color = "green";                        // Change the color of the element

You could wrap the hidden div in another div that will toggle the visibility with onMouseOver and onMouseOut event handlers in JavaScript:

<style type="text/css">
  #div1, #div2, #div3 {  
    visibility: hidden;  
  }
</style>
<script>
  function show(id) {
    document.getElementById(id).style.visibility = "visible";
  }
  function hide(id) {
    document.getElementById(id).style.visibility = "hidden";
  }
</script>

<div onMouseOver="show('div1')" onMouseOut="hide('div1')">
  <div id="div1">Div 1 Content</div>
</div>
<div onMouseOver="show('div2')" onMouseOut="hide('div2')">
  <div id="div2">Div 2 Content</div>
</div>
<div onMouseOver="show('div3')" onMouseOut="hide('div3')">
  <div id="div3">Div 3 Content</div>
</div>

As aditional information on @Quentin answer, and as he rightly says, background CSS property itself, is a shorthand for:

background-color
background-image
background-repeat
background-attachment
background-position

That's mean, you can group all styles in one, like:

background: red url(../img.jpg) 0 0 no-repeat fixed;

This would be (in this example):

background-color: red;
background-image: url(../img.jpg);
background-repeat: no-repeat;
background-attachment: fixed;
background-position: 0 0;

So... when you set: background:none;
you are saying that all the background properties are set to none...
You are saying that background-image: none; and all the others to the initial state (as they are not being declared).
So, background:none; is:

background-color: initial;
background-image: none;
background-repeat: initial;
background-attachment: initial;
background-position: initial;

Now, when you define only the color (in your case transparent) then you are basically saying:

background-color: transparent;
background-image: initial;
background-repeat: initial;
background-attachment: initial;
background-position: initial;

I repeat, as @Quentin rightly says the default transparent and none values in this case are the same, so in your example and for your original question, No, there's no difference between them.

But!.. if you say background:none Vs background:red then yes... there's a big diference, as I say, the first would set all properties to none/default and the second one, will only change the color and remains the rest in his default state.

So in brief:

Short answer: No, there's no difference at all (in your example and orginal question)
Long answer: Yes, there's a big difference, but depends directly on the properties granted to attribute.

Upd1: Initial value (aka default)

Initial value the concatenation of the initial values of its longhand properties:

background-image: none
background-position: 0% 0%
background-size: auto auto
background-repeat: repeat
background-origin: padding-box
background-style: is itself a shorthand, its initial value is the concatenation of its own longhand properties
background-clip: border-box
background-color: transparent

See more background descriptions here

Upd2: Clarify better the background:none; specification.

I like Tony approach. It works, but I decided to implement in different way. Here my comments:

1) I did some tests and when using ng-style, Angular evaluates ng-style content, I mean getTableHeight() function more than once. I put a breakpoint into getTableHeight() function to analyze this.

By the way, ui-if was removed. Now you have ng-if build-in.

2) I prefer to write a service like this:

angular.module('angularStart.services').factory('uiGridService', function ($http, $rootScope) {

var factory = {};

factory.getGridHeight = function(gridOptions) {

    var length = gridOptions.data.length;
    var rowHeight = 30; // your row height
    var headerHeight = 40; // your header height
    var filterHeight = 40; // your filter height

    return length * rowHeight + headerHeight + filterHeight + "px";
}
factory.removeUnit = function(value, unit) {

    return value.replace(unit, '');
}
return factory;

});

And then in the controller write the following:

  angular.module('app',['ui.grid']).controller('AppController', ['uiGridConstants', function(uiGridConstants) {

  ...

  // Execute this when you have $scope.gridData loaded...
  $scope.gridHeight = uiGridService.getGridHeight($scope.gridData);

And at the HTML file:

  <div id="grid1" ui-grid="gridData" class="grid" ui-grid-auto-resize style="height: {{gridHeight}}"></div>

When angular applies the style, it only has to look in the $scope.gridHeight variable and not to evaluate a complete function.

3) If you want to calculate dynamically the height of an expandable grid, it is more complicated. In this case, you can set expandableRowHeight property. This fixes the reserved height for each subgrid.

    $scope.gridData = {
        enableSorting: true,
        multiSelect: false,  
        enableRowSelection: true,
        showFooter: false,
        enableFiltering: true,    
        enableSelectAll: false,
        enableRowHeaderSelection: false, 
        enableGridMenu: true,
        noUnselect: true,
        expandableRowTemplate: 'subGrid.html',
        expandableRowHeight: 380,   // 10 rows * 30px + 40px (header) + 40px (filters)
        onRegisterApi: function(gridApi) {

            gridApi.expandable.on.rowExpandedStateChanged($scope, function(row){
                var height = parseInt(uiGridService.removeUnit($scope.jdeNewUserConflictsGridHeight,'px'));
                var changedRowHeight = parseInt(uiGridService.getGridHeight(row.entity.subGridNewUserConflictsGrid, true));

                if (row.isExpanded)
                {
                    height += changedRowHeight;                    
                }
                else
                {
                    height -= changedRowHeight;                    
                }

                $scope.jdeNewUserConflictsGridHeight = height + 'px';
            });
        },
        columnDefs :  [
                { field: 'GridField1', name: 'GridField1', enableFiltering: true }
        ]
    }

One simple query will do it:

SELECT * 
FROM table 
GROUP BY email 
HAVING COUNT(*) = 1;

Using this regular expression you can validate different kinds of Date/Time samples, just a little change is needed.

^\d\d\d\d/(0?[1-9]|1[0-2])/(0?[1-9]|[12][0-9]|3[01]) (00|[0-9]|1[0-9]|2[0-3]):([0-9]|[0-5][0-9]):([0-9]|[0-5][0-9])$ -->validate this: 2018/7/12 13:00:00

for your format you cad change it to:

^(0?[1-9]|[12][0-9]|3[01])/(0?[1-9]|1[0-2])/\d\d$ --> validates this: 11/12/98

You can use vim -b filename to edit a file in binary mode, which will show ^M characters for carriage return and a new line is indicative of LF being present, indicating Windows CRLF line endings. By LF I mean \n and by CR I mean \r. Note that when you use the -b option the file will always be edited in UNIX mode by default as indicated by [unix] in the status line, meaning that if you add new lines they will end with LF, not CRLF. If you use normal vim without -b on a file with CRLF line endings, you should see [dos] shown in the status line and inserted lines will have CRLF as end of line. The vim documentation for fileformats setting explains the complexities.

Also, I don't have enough points to comment on the Notepad++ answer, but if you use Notepad++ on Windows, use the View / Show Symbol / Show End of Line menu to display CR and LF. In this case LF is shown whereas for vim the LF is indicated by a new line.

One of the things that can bite you is if you are using .onmousedown as your user interaction; when you do that, and then an attempt is immediately made to select a field, it won't happen, because the mouse is being held down on something else. So change to .onmouseup and viola, now focus() works, because the mouse is in an un-clicked state when the attempt to change focus is made.

When multiple threads need to check and change the boolean. For example:

if (!initialized) {
   initialize();
   initialized = true;
}

This is not thread-safe. You can fix it by using AtomicBoolean:

if (atomicInitialized.compareAndSet(false, true)) {
    initialize();
}

If you're running on an AWS instance that is running Amazon Linux OS, the magic command to fix this for me was

sudo yum install tkinter

If you want to determine your Linux build, try cat /etc/*release

Use .. LIMIT :pageSize OFFSET :pageStart

Where :pageStart is bound to the_page_index (i.e. 0 for the first page) * number_of_items_per_pages (e.g. 4) and :pageSize is bound to number_of_items_per_pages.

To detect for "has more pages", either use SQL_CALC_FOUND_ROWS or use .. LIMIT :pageSize OFFSET :pageStart + 1 and detect a missing last (pageSize+1) record. Needless to say, for pages with an index > 0, there exists a previous page.

If the page index value is embedded in the URL (e.g. in "prev page" and "next page" links) then it can be obtained via the appropriate $_GET item.

None of the above solutions worked for me. However I opened the ProjectName.CSPROJ file and manually added the new file and it worked like charm

DECLARE @Names VARCHAR(8000)
SELECT @name = ''
SELECT @Names = @Names + ',' + Names FROM People
SELECT SUBSTRING(2, @Names, 7998)

This puts the stray comma at the beginning.

However, if you need other columns, or to CSV a child table you need to wrap this in a scalar user defined field (UDF).

You can use XML path as a correlated subquery in the SELECT clause too (but I'd have to wait until I go back to work because Google doesn't do work stuff at home :-)

Here's a one-liner that removes all objects except for functions:

rm(list = setdiff(ls(), lsf.str()))

It uses setdiff to find the subset of objects in the global environment (as returned by ls()) that don't have mode function (as returned by lsf.str())

In my case the original question was using asset-url without results instead of plain url css property. Using asset-url ended up working for me in Heroku. Plus setting the fonts in /assets/fonts folder and calling asset-url('font.eot') without adding any subfolder or any other configuration to it.

I have a problem with these javascript functions:

function ClickConnect(){
    console.log("Clicked on connect button"); 
    document.querySelector("colab-connect-button").click()
}
setInterval(ClickConnect,60000)

They print the "Clicked on connect button" on the console before the button is actually clicked. As you can see from different answers in this thread, the id of the connect button has changed a couple of times since Google Colab was launched. And it could be changed in the future as well. So if you're going to copy an old answer from this thread it may say "Clicked on connect button" but it may actually not do that. Of course if the clicking won't work it will print an error on the console but what if you may not accidentally see it? So you better do this:

function ClickConnect(){
    document.querySelector("colab-connect-button").click()
    console.log("Clicked on connect button"); 
}
setInterval(ClickConnect,60000)

And you'll definitely see if it truly works or not.

What do you mean by "initialize an array to zero"? Arrays don't contain "zero" -- they can contain "zero elements", which is the same as "an empty list". Or, you could have an array with one element, where that element is a zero: my @array = (0);

my @array = (); should work just fine -- it allocates a new array called @array, and then assigns it the empty list, (). Note that this is identical to simply saying my @array;, since the initial value of a new array is the empty list anyway.

Are you sure you are getting an error from this line, and not somewhere else in your code? Ensure you have use strict; use warnings; in your module or script, and check the line number of the error you get. (Posting some contextual code here might help, too.)

Just to make this absolutely clear for all:

A .MDF file is “typically” a SQL Server data file however it is important to note that it does NOT have to be.

This is because .MDF is nothing more than a recommended/preferred notation but the extension itself does not actually dictate the file type.

To illustrate this, if someone wanted to create their primary data file with an extension of .gbn they could go ahead and do so without issue.

To qualify the preferred naming conventions:

• .mdf - Primary database data file.
• .ndf - Other database data files i.e. non Primary.
• .ldf - Log data file.

You can do this by using asynchronous Javascript SDK provided by facebook

Have a look at the following code

FB Javascript SDK initialization

<div id="fb-root"></div>
<script>
window.fbAsyncInit = function() {
FB.init({appId: 'YOUR APP ID', status: true, cookie: true,
xfbml: true});
};
(function() {
var e = document.createElement('script'); e.async = true;
e.src = document.location.protocol +
'//connect.facebook.net/en_US/all.js';
document.getElementById('fb-root').appendChild(e);
}());
</script>

Note: Remember to replace YOUR APP ID with your facebook AppId. If you don't have facebook AppId and you don't know how to create please check this

Add JQuery Library, I would preferred Google Library

<script src="//ajax.googleapis.com/ajax/libs/jquery/1.6.1/jquery.min.js" type="text/javascript"></script>

Add share dialog box (You can customize this dialog box by setting up parameters

<script type="text/javascript">
$(document).ready(function(){
$('#share_button').click(function(e){
e.preventDefault();
FB.ui(
{
method: 'feed',
name: 'This is the content of the "name" field.',
link: 'http://www.groupstudy.in/articlePost.php?id=A_111213073144',
picture: 'http://www.groupstudy.in/img/logo3.jpeg',
caption: 'Top 3 reasons why you should care about your finance',
description: "What happens when you don't take care of your finances? Just look at our country -- you spend irresponsibly, get in debt up to your eyeballs, and stress about how you're going to make ends meet. The difference is that you don't have a glut of taxpayers…",
message: ""
});
});
});
</script>

Now finally add image button

<img src = "share_button.png" id = "share_button">

For more detailed kind of information. please click here

Python is upset because you are attempting to assign a value to something that can't be assigned a value.

((t[1])/length) * t[1] += string

When you use an assignment operator, you assign the value of what is on the right to the variable or element on the left. In your case, there is no variable or element on the left, but instead an interpreted value: you are trying to assign a value to something that isn't a "container".

Based on what you've written, you're just misunderstanding how this operator works. Just switch your operands, like so.

string += str(((t[1])/length) * t[1])

Note that I've wrapped the assigned value in str in order to convert it into a str so that it is compatible with the string variable it is being assigned to. (Numbers and strings can't be added together.)

If you have access to python, this is a helper that will get the yyyy-mm-dd date value for any arbitrary n days ago:

function get_n_days_ago {
  local days=$1
  python -c "import datetime; print (datetime.date.today() - datetime.timedelta(${days})).isoformat()"
}

# today is 2014-08-24

$ get_n_days_ago 1
2014-08-23

$ get_n_days_ago 2
2014-08-22

This is very easy to do with geography type in SQL Server 2008.

SELECT geography::Point(lat1, lon1, 4326).STDistance(geography::Point(lat2, lon2, 4326))
-- computes distance in meters using eliptical model, accurate to the mm

4326 is SRID for WGS84 elipsoidal Earth model

You're comparing strings. JavaScript compares the ASCII code for each character of the string.

To see why you get false, look at the charCodes:

"1300".charCodeAt(0);
49
"999".charCodeAt(0);
57

The comparison is false because, when comparing the strings, the character codes for 1 is not greater than that of 9.

The fix is to treat the strings as numbers. You can use a number of methods:

parseInt(string, radix)
parseInt("1300", 10);
> 1300 - notice the lack of quotes


+"1300"
> 1300


Number("1300")
> 1300

Since API 24 you have FROM_HTML_OPTION_USE_CSS_COLORS so you can define colors in CSS instead of repeating it all time with font color=" Much clearer - when you have some html and you want to highlight some predefined tags - you just need to add CSS fragment at top of your html

I also faced this same issue, I got a solution with this.

I did the following steps :

1. Open system properties
2. Environment variables
3. create a new system variable
4. name: ANDROID_HOME
5. value: copy your SDK path( Ex: my SDK path E:\SoftWares\Android-SDK)

close your current cmd, and restart it run flutter doctor

this should work on windows

StringValues is an array of strings. You can get your string value by providing an index, e.g. HttpContext.Request.Query["page"][0].

First do run these commands inside Terminal/CMD:

conda update anaconda-navigator  
conda update navigator-updater  

Then the issue for the instruction below will be resolved

For windows if you have anaconda installed, you can simply do

pip install opencv-python

or

conda install -c https://conda.binstar.org/menpo opencv

if you are on linux you can do :

pip install opencv-python

or

conda install opencv 

Link1 Link2

For python3.5+ check these links : Link3 , Link4

Update:
if you use anaconda, you may simply use this as well (and hence don't need to add menpo channel):

conda install -c conda-forge opencv

The most confusing thing here is that whatever type restrictions we specify, assignment works only one way:

baseClassInstance = derivedClassInstance;

You may think that Integer extends Number and that an Integer would do as a <? extends Number>, but the compiler will tell you that <? extends Number> cannot be converted to Integer (that is, in human parlance, it is wrong that anything that extends number can be converted to Integer):

class Holder<T> {
    T v;
    T get() { return v; }
    void set(T n) { v=n; }
}
class A {
    public static void main(String[]args) {
        Holder<? extends Number> he = new Holder();
        Holder<? super Number> hs = new Holder();

        Integer i;
        Number n;
        Object o;

        // Producer Super: always gives an error except
        //       when consumer expects just Object
        i = hs.get(); // <? super Number> cannot be converted to Integer
        n = hs.get(); // <? super Number> cannot be converted to Number
                      // <? super Number> cannot be converted to ... (but
                      //       there is no class between Number and Object)
        o = hs.get();

        // Consumer Super
        hs.set(i);
        hs.set(n);
        hs.set(o); // Object cannot be converted to <? super Number>

        // Producer Extends
        i = he.get(); // <? extends Number> cannot be converted to Integer
        n = he.get();
        o = he.get();

        // Consumer Extends: always gives an error
        he.set(i); // Integer cannot be converted to <? extends Number>
        he.set(n); // Number cannot be converted to <? extends Number>
        he.set(o); // Object cannot be converted to <? extends Number>
    }
}

hs.set(i); is ok because Integer can be converted to any superclass of Number (and not because Integer is a superclass of Number, which is not true).

EDIT added a comment about Consumer Extends and Producer Super -- they are not meaningful because they specify, correspondingly, nothing and just Object. You are advised to remember PECS because CEPS is never useful.

Reload the datasource of your grid after the update

myGrid.ItemsSource = null;
myGrid.ItemsSource = myDataSource;

Do Mouse move while page is loading should work.

 page.sendEvent('click',200, 660);

do { phantom.page.sendEvent('mousemove'); } while (page.loading);

UPDATE

When submitting the form, nothing was returned, so the program stopped. The program did not wait for the page to load as it took a few seconds for the redirect to begin.

telling it to move the mouse until the URL changes to the home page gave the browser as much time as it needed to change. then telling it to wait for the page to finish loading allowed the page to full load before the content was grabbed.

page.evaluate(function () {
document.getElementsByClassName('btn btn-primary btn-block')[0].click();
});
do { phantom.page.sendEvent('mousemove'); } while (page.evaluate(function()
{
return document.location != "https://www.bestwaywholesale.co.uk/";
}));
do { phantom.page.sendEvent('mousemove'); } while (page.loading);

Here's something else you could do... you want a method that is able to have a parameter and not.

Why not try this...

public ActionResult Show( string username = null )
{
   ...
}

This has worked for me... and in this one method, you can actually test to see if you have the incoming parameter.

DateTime is a DataType which is used to store both Date and Time. But it provides Properties to get the Date Part.

You can get the Date part from Date Property.

http://msdn.microsoft.com/en-us/library/system.datetime.date.aspx

DateTime date1 = new DateTime(2008, 6, 1, 7, 47, 0);
Console.WriteLine(date1.ToString());

// Get date-only portion of date, without its time.
DateTime dateOnly = date1.Date;
// Display date using short date string.
Console.WriteLine(dateOnly.ToString("d"));
// Display date using 24-hour clock.
Console.WriteLine(dateOnly.ToString("g"));
Console.WriteLine(dateOnly.ToString("MM/dd/yyyy HH:mm"));   
// The example displays the following output to the console:
//       6/1/2008 7:47:00 AM
//       6/1/2008
//       6/1/2008 12:00 AM
//       06/01/2008 00:00

A slightly modified version of @sidanmor 's code. The main point is, not every webpage is purely ASCII, user should be able to handle the decoding manually (even encode into base64)

function httpGet(url) {
  return new Promise((resolve, reject) => {
    const http = require('http'),
      https = require('https');

    let client = http;

    if (url.toString().indexOf("https") === 0) {
      client = https;
    }

    client.get(url, (resp) => {
      let chunks = [];

      // A chunk of data has been recieved.
      resp.on('data', (chunk) => {
        chunks.push(chunk);
      });

      // The whole response has been received. Print out the result.
      resp.on('end', () => {
        resolve(Buffer.concat(chunks));
      });

    }).on("error", (err) => {
      reject(err);
    });
  });
}

(async(url) => {
  var buf = await httpGet(url);
  console.log(buf.toString('utf-8'));
})('https://httpbin.org/headers');

Make the value a list, e.g.

a["abc"] = [1, 2, "bob"]

UPDATE:

There are a couple of ways to add values to key, and to create a list if one isn't already there. I'll show one such method in little steps.

key = "somekey"
a.setdefault(key, [])
a[key].append(1)

Results:

>>> a
{'somekey': [1]}

Next, try:

key = "somekey"
a.setdefault(key, [])
a[key].append(2)

Results:

>>> a
{'somekey': [1, 2]}

The magic of setdefault is that it initializes the value for that key if that key is not defined, otherwise it does nothing. Now, noting that setdefault returns the key you can combine these into a single line:

a.setdefault("somekey",[]).append("bob")

Results:

>>> a
{'somekey': [1, 2, 'bob']}

You should look at the dict methods, in particular the get() method, and do some experiments to get comfortable with this.

Try Clink. It's awesome, especially if you are used to bash keybindings and features.

(As already pointed out - there is a similar question: Is there a better Windows Console Window?)

As of Pandas 0.24.0, we can now use DataFrame.droplevel():

cols = pd.MultiIndex.from_tuples([("a", "b"), ("a", "c")])
df = pd.DataFrame([[1,2], [3,4]], columns=cols)

df.droplevel(0, axis=1) 

#   b  c
#0  1  2
#1  3  4

This is very useful if you want to keep your DataFrame method-chain rolling.

Here's a trick to easily check if the schema already exists, and then create it, in it's own batch, to avoid the error message of trying to create a schema when it's not the only command in a batch.

IF NOT EXISTS (SELECT schema_name 
    FROM information_schema.schemata 
    WHERE schema_name = 'newSchemaName' )
BEGIN
    EXEC sp_executesql N'CREATE SCHEMA NewSchemaName;';
END

There is no such thing: I recommend to write it for yourself and use it whenever you need.

The DateTime constructor takes a parameter string time. $time can be different things, it has to respect the datetime format.

There are some valid values as examples :

• 'now' (the default value)
• 2017-10-19
• 2017-10-19 11:59:59
• 2017-10-19 +1day

So, in your case you can use the following.

$dt = new \DateTime('now +1 day'); //Tomorrow
$dt = new \DateTime('2016-01-01 +1 day'); //2016-01-02

Your model is @Messages, change it to @message.

To change it like you should use migration:

def change   rename_table :old_table_name, :new_table_name end 

Of course do not create that file by hand but use rails generator:

rails g migration ChangeMessagesToMessage 

That will generate new file with proper timestamp in name in 'db dir. Then run:

rake db:migrate 

And your app should be fine since then.

A couple of general tips (besides the DOS line ending issue):

cat is for concatenating files, it's not the only tool that can read files! If a command doesn't read files then use redirection like command < file.

You can set the field separator with the -F option so instead of:

cat foo | awk 'BEGIN{FS="|"} {print $2 " " $1}' 

Try:

awk -F'|' '{print $2" "$1}' foo 

This will output:

com.emailclient.account [email protected]
com.socialsite.auth.accoun [email protected]

To get the desired output you could do a variety of things. I'd probably split() the second field:

awk -F'|' '{split($2,a,".");print a[2]" "$1}' file
emailclient [email protected]
socialsite [email protected]

Finally to get the first character converted to uppercase is a bit of a pain in awk as you don't have a nice built in ucfirst() function:

awk -F'|' '{split($2,a,".");print toupper(substr(a[2],1,1)) substr(a[2],2),$1}' file
Emailclient [email protected]
Socialsite [email protected]

If you want something more concise (although you give up a sub-process) you could do:

awk -F'|' '{split($2,a,".");print a[2]" "$1}' file | sed 's/^./\U&/'
Emailclient [email protected]
Socialsite [email protected]

This error mostly comes when we forcefully kill the weblogic server ("kill -9 process id"), so before restart kindly check all the ports status which weblogic using e.g. http port , DEBUG_PORT etc by using this command to see which whether this port is active or not.

netstat –an | grep (Admin: 7001 or something, Managed server- 7002, 7003 etc) eg: netstat –an | grep 7001

If it returns value then, option 1: wait for some time, so that background process can release the port option 2: execute stopweblogic.sh Option 3: Bounce the server/host or restart the system.

My issue was resolved by option 2.

I also had the same error. In my case reason was I have created a update trigger on a table and under that trigger I am again updating the same table. And when I have removed the update statement from the trigger my problem has been resolved.

You can find the answer here: Is there a minlength validation attribute in HTML5?

Therefore this should do the job:

<input pattern=".{6,6}">

Im not sure If this will help anyone but I was getting this error (although I was using php to create it instead of the command line) and to fix it I had to ensure that no old .key or .pem files were in the directory I was looking at. By deleting them and making fresh files with the authentication it worked perfectly!

SHA-1 produces a 160-bit message (20 bytes), too large to be stored in an int or long value. As Ralph suggests, you could use BigInteger.

To get a (less-secure) int hash, you could return the hash code of the returned byte array.

Alternatively, if you don't really need SHA at all, you could just use the UUID's String hash code.

Correct way to check for null or empty or string containing only spaces is like this:

if(str != null && !str.trim().isEmpty()) { /* do your stuffs here */ }

Try www.eclipse.org/downloads/packages/eclipse-android-developers-includes-incubating-components/neonrc3

first of all;

a Fragment must be inside a FragmentActivity, that's the first rule,

a FragmentActivity is quite similar to a standart Activity that you already know, besides having some Fragment oriented methods

second thing about Fragments, is that there is one important method you MUST call, wich is onCreateView, where you inflate your layout, think of it as the setContentLayout

here is an example:

    @Override public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {     mView       = inflater.inflate(R.layout.fragment_layout, container, false);       return mView; } 

and continu your work based on that mView, so to find a View by id, call mView.findViewById(..);

for the FragmentActivity part:

the xml part "must" have a FrameLayout in order to inflate a fragment in it

        <FrameLayout             android:id="@+id/content_frame"             android:layout_width="match_parent"             android:layout_height="match_parent"  >         </FrameLayout> 

as for the inflation part

getSupportFragmentManager().beginTransaction().replace(R.id.content_frame, new YOUR_FRAGMENT, "TAG").commit();

begin with these, as there is tons of other stuf you must know about fragments and fragment activities, start of by reading something about it (like life cycle) at the android developer site

If anyone else is stuck with this, here's what helped me. Changing the Anchor settings did not work for me. I am using datagridviews within groupboxes in a form which is inside a parent form.

Handling the form resize event was the only thing that worked for me.

private void Form1_Resize(object sender, EventArgs e)
{
     groupBoxSampleQueue.MinimumSize = new Size((this as OperatingForm).Width - 22, 167);
     groupBoxMachineStatus.MinimumSize = new Size((this as OperatingForm).Width - 22, 167);
}

I added some raw numbers as buffers.

In my case, the culprit was found in the logfiles:

$ tail /usr/local/var/mysql/<hostname>.lan.err
2019-09-19  7:32:21 0 [ERROR] InnoDB: redo log file './ib_logfile0' exists. Creating system tablespace with existing redo log files is not recommended. Please delete all redo log files before creating new system tablespace.
2019-09-19  7:32:21 0 [ERROR] InnoDB: Database creation was aborted with error Generic error. You may need to delete the ibdata1 file before trying to start up again.

So I renamed ib_logfile0 to get rid of the error (I had to do the same with ib_logfile1 afterwards).

mv /usr/local/var/mysql/ib_logfile0 /usr/local/var/mysql/ib_logfile0_bak
mv /usr/local/var/mysql/ib_logfile1 /usr/local/var/mysql/ib_logfile1_bak
brew services restart mariadb

From @Jon Skeet comment, really the String value is "null". Following code solved it

if (userEmail != null && !userEmail.isEmpty() && !userEmail.equals("null")) 

Example simple (worked):

var a=Number.parseFloat($("#budget_project").val()); // from input field
var b=Number.parseFloat(html); // from ajax
var c=a-b;
$("#result").html(c.toFixed(2)); // put to id='result' (div or others)

I'm not sure if this will still be useful to people, but with ES6 I have a way to do it that I find clean and useful.

class MyClass { 
  constructor ( arg1, arg2, arg3 )
  myFunction1 () {...}
  myFunction2 () {...}
  myFunction3 () {...}
}

module.exports = ( arg1, arg2, arg3 ) => { return new MyClass( arg1,arg2,arg3 ) }

And then you get your expected behaviour.

var MyClass = require('/MyClass.js')( arg1, arg2, arg3 )

from file1 import *  

will import all objects and methods in file1

You need to use Arrow function ()=> ES6 feature to preserve this context within setTimeout.

// var that = this;                             // no need of this line
this.messageSuccess = true;

setTimeout(()=>{                           //<<<---using ()=> syntax
      this.messageSuccess = false;
 }, 3000);

Here is the example which results in a strange error. Even Google gives no results:

public class ExampleClass {

private static final Pattern dateCreateP = Pattern.compile("???? ??????:\\s*(.+)");
private static final SimpleDateFormat sdf = new SimpleDateFormat("HH:mm:ss dd.MM.yyyy");

public static void main(String[] args) {
    ExecutorService executor = Executors.newFixedThreadPool(100);
    while (true) {
        executor.submit(new Runnable() {
            @Override
            public void run() {
                workConcurrently();
            }
        });
    }
}

public static void workConcurrently() {
    Matcher matcher = dateCreateP.matcher("???? ??????: 19:30:55 03.05.2015");
    Timestamp startAdvDate = null;
    try {
        if (matcher.find()) {
            String dateCreate = matcher.group(1);
            startAdvDate = new Timestamp(sdf.parse(dateCreate).getTime());
        }
    } catch (Throwable th) {
        th.printStackTrace();
    }
    System.out.print("OK ");
}
}

And result :

OK OK OK OK OK OK OK OK OK OK OK OK OK OK OK OK OK OK OK OK OK OK OK OK OK OK OK OK OK OK OK OK OK OK OK OK OK OK OK OK java.lang.NumberFormatException: For input string: ".201519E.2015192E2"
at sun.misc.FloatingDecimal.readJavaFormatString(FloatingDecimal.java:2043)
at sun.misc.FloatingDecimal.parseDouble(FloatingDecimal.java:110)
at java.lang.Double.parseDouble(Double.java:538)
at java.text.DigitList.getDouble(DigitList.java:169)
at java.text.DecimalFormat.parse(DecimalFormat.java:2056)
at java.text.SimpleDateFormat.subParse(SimpleDateFormat.java:1869)
at java.text.SimpleDateFormat.parse(SimpleDateFormat.java:1514)
at java.text.DateFormat.parse(DateFormat.java:364)
at com.nonscalper.webscraper.processor.av.ExampleClass.workConcurrently(ExampleClass.java:37)
at com.nonscalper.webscraper.processor.av.ExampleClass$1.run(ExampleClass.java:25)
at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
at java.util.concurrent.FutureTask.run(FutureTask.java:266)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
at java.lang.Thread.run(Thread.java:745)

From your description, it looks like that you want to "reserve" the allocated storage space of vector t_Names.

Take note that resize initialize the newly allocated vector where reserve just allocates but does not construct. Hence, 'reserve' is much faster than 'resize'

You can refer to the documentation regarding the difference of resize and reserve

You can add the directories for your build process like:

    ...
   <resources>
     <resource>
       <directory>src/bootstrap</directory>
     </resource>
   </resources>
   ...

The src/main/java is the default path which is not needed to be mentioned in the pom.xml

At our company, instead of asking a lot of SQL questions that anyone with a good memory can answer, we created a SQL Developers test. The test is designed to have the candidate put together a solid schema with normalization and RI considerations, check constraints etc. And then be able to create some queries to produce results sets we're looking for. They create all this against a brief design specification we give them. They are allowed to do this at home, and take as much time as they need (within reason).

This is an improvement for Tobias Cohen's function, which works well with multidimensional arrays:

http://jsfiddle.net/BNnwF/2/

However, this is not a jQuery plugin, but it will only take a few seconds to make it into one if you wish to use it that way: simply replace the function declaration wrapper:

function serializeFormObject(form)
{
    ...
}

with:

$.fn.serializeFormObject = function()
{
    var form = this;
    ...
};

I guess it is similar to macek's solution in that it does the same thing, but i think this is a bit cleaner and simpler. I also included macek's test case inputs into the fiddle and added some additional ones. So far this works well for me.

function serializeFormObject(form)
{
    function trim(str)
    {
        return str.replace(/^\s+|\s+$/g,"");
    }

    var o = {};
    var a = $(form).serializeArray();
    $.each(a, function() {
        var nameParts = this.name.split('[');
        if (nameParts.length == 1) {
            // New value is not an array - so we simply add the new
            // value to the result object
            if (o[this.name] !== undefined) {
                if (!o[this.name].push) {
                    o[this.name] = [o[this.name]];
                }
                o[this.name].push(this.value || '');
            } else {
                o[this.name] = this.value || '';
            }
        }
        else {
            // New value is an array - we need to merge it into the
            // existing result object
            $.each(nameParts, function (index) {
                nameParts[index] = this.replace(/\]$/, '');
            });

            // This $.each merges the new value in, part by part
            var arrItem = this;
            var temp = o;
            $.each(nameParts, function (index) {
                var next;
                var nextNamePart;
                if (index >= nameParts.length - 1)
                    next = arrItem.value || '';
                else {
                    nextNamePart = nameParts[index + 1];
                    if (trim(this) != '' && temp[this] !== undefined)
                        next = temp[this];
                    else {
                        if (trim(nextNamePart) == '')
                            next = [];
                        else
                            next = {};
                    }
                }

                if (trim(this) == '') {
                    temp.push(next);
                } else
                    temp[this] = next;

                temp = next;
            });
        }
    });
    return o;
}

One statement can be written as such:

someValues.forEach(x => console.log(x));

or multiple statements can be enclosed in {} like this:

someValues.forEach(x => { let a = 2 + x; console.log(a); });

Refer to openpyxl document, you can do changes as followings.

from openpyxl import Workbook
from openpyxl.drawing.image import Image

wb = Workbook()
ws = wb.active
ws['A1'] = 'Insert a xxx.PNG'
# Reload an image
img = Image(**r**'x:\xxx\xxx\xxx.png')
# Insert to worksheet and anchor next to cells
ws.add_image(img, 'A2')
wb.save(**r**'x:\xxx\xxx.xlsx')

Go to SQL command line:- type:

sql>connect / as sysdba;

then type:

sql>desc dba_users;

then type:

sql>select username,password from dba_users;

If sysdba doesn't work then try connecting with username:scott and password: Tiger

You will be able to see all users with passwords. Probably you might find your's. Hope this helps

I know it's not the asnwer to the precise question (Chrome Developer Tools) but I'm using this workaround with success: http://www.telerik.com/fiddler

(pretty sure some of the web devs already know about this tool)

1. Save the file locally
2. Edit as required
3. Profit!

Full docs: http://docs.telerik.com/fiddler/KnowledgeBase/AutoResponder

PS. I would rather have it implemented in Chrome as a flag preserve after reload, cannot do this now, forums and discussion groups blocked on corporate network :)

Apart from above correct answer, also make sure that you have set correct Main Interface in General.

Take a look at ajaxStart and ajaxStop

Based upon your comments - your path statement has been changed/is incorrect or the path variable is being incorrectly used for another purpose.

supplement of windows

gvim version: 8.2

location of .gvimrc: %userprofile%/.gvimrc

" .gvimrc
colorscheme darkblue

Which color is allows me to choose?

Find your install directory and go to the directory of colors. in my case is: %PROGRAMFILES(X86)%\Vim\vim82\colors

blue.vim
darkblue.vim
slate.vim
...
README.txt

Please note that inserted, deleted means the same thing as inserted CROSS JOIN deleted and gives every combination of every row. I doubt this is what you want.

Something like this may help get you started...

SELECT
  CASE WHEN inserted.primaryKey IS NULL THEN 'This is a delete'
       WHEN  deleted.primaryKey IS NULL THEN 'This is an insert'
                                        ELSE 'This is an update'
  END  as Action,
  *
FROM
  inserted
FULL OUTER JOIN
  deleted
    ON inserted.primaryKey = deleted.primaryKey

Depending on what you want to do, you then reference the table you are interested in with inserted.userID or deleted.userID, etc.

Finally, be aware that inserted and deleted are tables and can (and do) contain more than one record.

If you insert 10 records at once, the inserted table will contain ALL 10 records. The same applies to deletes and the deleted table. And both tables in the case of an update.

EDIT Examplee Trigger after OPs edit.

ALTER TRIGGER [dbo].[UpdateUserCreditsLeft] 
  ON  [dbo].[Order]
  AFTER INSERT,UPDATE,DELETE
AS 
BEGIN

  -- SET NOCOUNT ON added to prevent extra result sets from
  -- interfering with SELECT statements.
  SET NOCOUNT ON;

  UPDATE
    User
  SET
    CreditsLeft = CASE WHEN inserted.UserID IS NULL THEN <new value for a  DELETE>
                       WHEN  deleted.UserID IS NULL THEN <new value for an INSERT>
                                                    ELSE <new value for an UPDATE>
                  END
  FROM
    User
  INNER JOIN
    (
      inserted
    FULL OUTER JOIN
      deleted
        ON inserted.UserID = deleted.UserID  -- This assumes UserID is the PK on UpdateUserCreditsLeft
    )
      ON User.UserID = COALESCE(inserted.UserID, deleted.UserID)

END

If the PrimaryKey of UpdateUserCreditsLeft is something other than UserID, use that in the FULL OUTER JOIN instead.

As Others have mentioned, add these refernces to visual studios with Copy Local set to true. ( I also had to add System.Web.Webpages)

Microsoft.Web.Infrastructure
System.Web.Razor
System.Web.WebPages.Deployment
System.Web.WebPages.Razor
System.Web.Webpages

I am new to .NET/MVC programming, but my understanding is that the Site.css file (under the Content folder in MVC) is a site-level override for Bootstrap CSS, allowing you to override bootstrap native settings in a portable and non-destructive manner (e.g. you can easily save and reapply your site.css changes when updating Bootstrap on your system.)

In Bootstrap 3.0.0, Site.css has the following style setting:

/* Set width on the form input elements since they're 100% wide by default */
input,
select,
textarea {
    max-width: 280px;
}

Other blogs have suggested that this 280px width was added in haste near a release date, in a desire to make the UI look better than it does with 100% width input. Fortunately it was placed in a "visible" location in the site file so you would notice it.

Simply change the width setting, either for all three input types, or pull out textarea and give it its own setting if you want to leave the others alone.

type-specific formatting can be used as well:

t = datetime.datetime(2012, 2, 23, 0, 0)
"{:%m/%d/%Y}".format(t)

Output:

'02/23/2012'