You can add a reference to System.Configuration in your project and then:

using System.Configuration;

then

string sValue = ConfigurationManager.AppSettings["BatchFile"];

with an app.config file like this:

<?xml version="1.0" encoding="utf-8" ?>
<configuration>
   <appSettings>
       <add key="BatchFile" value="blah.bat" />
   </appSettings>
</configuration>

Here are the possible ways to take a unique pointer as an argument, as well as their associated meaning.

(A) By Value

Base(std::unique_ptr<Base> n)
  : next(std::move(n)) {}

In order for the user to call this, they must do one of the following:

Base newBase(std::move(nextBase));
Base fromTemp(std::unique_ptr<Base>(new Base(...));

To take a unique pointer by value means that you are transferring ownership of the pointer to the function/object/etc in question. After newBase is constructed, nextBase is guaranteed to be empty. You don't own the object, and you don't even have a pointer to it anymore. It's gone.

This is ensured because we take the parameter by value. std::move doesn't actually move anything; it's just a fancy cast. std::move(nextBase) returns a Base&& that is an r-value reference to nextBase. That's all it does.

Because Base::Base(std::unique_ptr<Base> n) takes its argument by value rather than by r-value reference, C++ will automatically construct a temporary for us. It creates a std::unique_ptr<Base> from the Base&& that we gave the function via std::move(nextBase). It is the construction of this temporary that actually moves the value from nextBase into the function argument n.

(B) By non-const l-value reference

Base(std::unique_ptr<Base> &n)
  : next(std::move(n)) {}

This has to be called on an actual l-value (a named variable). It cannot be called with a temporary like this:

Base newBase(std::unique_ptr<Base>(new Base)); //Illegal in this case.

The meaning of this is the same as the meaning of any other use of non-const references: the function may or may not claim ownership of the pointer. Given this code:

Base newBase(nextBase);

There is no guarantee that nextBase is empty. It may be empty; it may not. It really depends on what Base::Base(std::unique_ptr<Base> &n) wants to do. Because of that, it's not very evident just from the function signature what's going to happen; you have to read the implementation (or associated documentation).

Because of that, I wouldn't suggest this as an interface.

(C) By const l-value reference

Base(std::unique_ptr<Base> const &n);

I don't show an implementation, because you cannot move from a const&. By passing a const&, you are saying that the function can access the Base via the pointer, but it cannot store it anywhere. It cannot claim ownership of it.

This can be useful. Not necessarily for your specific case, but it's always good to be able to hand someone a pointer and know that they cannot (without breaking rules of C++, like no casting away const) claim ownership of it. They can't store it. They can pass it to others, but those others have to abide by the same rules.

(D) By r-value reference

Base(std::unique_ptr<Base> &&n)
  : next(std::move(n)) {}

This is more or less identical to the "by non-const l-value reference" case. The differences are two things.

1. You can pass a temporary:

   Base newBase(std::unique_ptr<Base>(new Base)); //legal now..
   

2. You must use std::move when passing non-temporary arguments.

The latter is really the problem. If you see this line:

Base newBase(std::move(nextBase));

You have a reasonable expectation that, after this line completes, nextBase should be empty. It should have been moved from. After all, you have that std::move sitting there, telling you that movement has occurred.

The problem is that it hasn't. It is not guaranteed to have been moved from. It may have been moved from, but you will only know by looking at the source code. You cannot tell just from the function signature.

Recommendations

• (A) By Value: If you mean for a function to claim ownership of a unique_ptr, take it by value.
• (C) By const l-value reference: If you mean for a function to simply use the unique_ptr for the duration of that function's execution, take it by const&. Alternatively, pass a & or const& to the actual type pointed to, rather than using a unique_ptr.
• (D) By r-value reference: If a function may or may not claim ownership (depending on internal code paths), then take it by &&. But I strongly advise against doing this whenever possible.

How to manipulate unique_ptr

You cannot copy a unique_ptr. You can only move it. The proper way to do this is with the std::move standard library function.

If you take a unique_ptr by value, you can move from it freely. But movement doesn't actually happen because of std::move. Take the following statement:

std::unique_ptr<Base> newPtr(std::move(oldPtr));

This is really two statements:

std::unique_ptr<Base> &&temporary = std::move(oldPtr);
std::unique_ptr<Base> newPtr(temporary);

(note: The above code does not technically compile, since non-temporary r-value references are not actually r-values. It is here for demo purposes only).

The temporary is just an r-value reference to oldPtr. It is in the constructor of newPtr where the movement happens. unique_ptr's move constructor (a constructor that takes a && to itself) is what does the actual movement.

If you have a unique_ptr value and you want to store it somewhere, you must use std::move to do the storage.

the accepted answer is correct.. for mobile you can also use this (ng-touched rather ng-dirty)

input.ng-invalid.ng-touched{
  border-bottom: 1px solid #e74c3c !important; 
}

According to my knowledge we should use ng-change with the select option and in textbox case we should use ng-blur.

Reset - On the commit-level, resetting is a way to move the tip of a branch to a different commit. This can be used to remove commits from the current branch.

Revert - Reverting undoes a commit by creating a new commit. This is a safe way to undo changes, as it has no chance of re-writing the commit history. Contrast this with git reset, which does alter the existing commit history. For this reason, git revert should be used to undo changes on a public branch, and git reset should be reserved for undoing changes on a private branch.

You can have a look on this link- Reset, Checkout and Revert

Webkit is the html/css rendering engine used in Apple's Safari browser, and in Google's Chrome. css values prefixes with -webkit- are webkit-specific, they're usually CSS3 or other non-standardised features.

to answer update 2 w3c is the body that tries to standardize these things, they write the rules, then programmers write their rendering engine to interpret those rules. So basically w3c says DIVs should work "This way" the engine-writer then uses that rule to write their code, any bugs or mis-interpretations of the rules cause the compatibility issues.

You could try to use the --path= option to define the specific sub-folder you're wanting to execute and place specific migrations in there.

Alternatively you would need to remove reference and tables from the DB and migrations tables which isn't ideal :/

Create a SQLCLR assembly with external access permission that returns the list of files as a result set. There are many examples how to do this, eg. Yet another TVF: returning files from a directory or Trading in xp_cmdshell for SQLCLR (Part 1) - List Directory Contents.

Block 2 doesn't work because it doesn't reset the Error Handler potentially causing an endless loop. For Error Handling to work properly in VBA, you need a Resume statement to clear the Error Handler. The Resume also reactivates the previous Error Handler. Block 2 fails because a new error would go back to the previous Error Handler causing an infinite loop.

Block 3 fails because there is no Resume statement so any attempt at error handling after that will fail.

Every error handler must be ended by exiting the procedure or a Resume statement. Routing normal execution around an error handler is confusing. This is why error handlers are usually at the bottom.

But here is another way to handle an error in VBA. It handles the error inline like Try/Catch in VB.net There are a few pitfalls, but properly managed it works quite nicely.

Sub InLineErrorHandling()

    'code without error handling

BeginTry1:

    'activate inline error handler
    On Error GoTo ErrHandler1

        'code block that may result in an error
        Dim a As String: a = "Abc"
        Dim c As Integer: c = a 'type mismatch

ErrHandler1:

    'handle the error
    If Err.Number <> 0 Then

        'the error handler has deactivated the previous error handler

        MsgBox (Err.Description)

        'Resume (or exit procedure) is the only way to get out of an error handling block
        'otherwise the following On Error statements will have no effect
        'CAUTION: it also reactivates the previous error handler
        Resume EndTry1
    End If

EndTry1:
    'CAUTION: since the Resume statement reactivates the previous error handler
    'you must ALWAYS use an On Error GoTo statement here
    'because another error here would cause an endless loop
    'use On Error GoTo 0 or On Error GoTo <Label>
    On Error GoTo 0

    'more code with or without error handling

End Sub

Sources:

• http://www.cpearson.com/excel/errorhandling.htm
• http://msdn.microsoft.com/en-us/library/bb258159.aspx

The key to making this work is to use a Resume statement immediately followed by another On Error statement. The Resume is within the error handler and diverts code to the EndTry1 label. You must immediately set another On Error statement to avoid problems as the previous error handler will "resume". That is, it will be active and ready to handle another error. That could cause the error to repeat and enter an infinite loop.

To avoid using the previous error handler again you need to set On Error to a new error handler or simply use On Error Goto 0 to cancel all error handling.

You may want to use:

SELECT Name, 'Unpaid' AS Status FROM table;

The SELECT clause syntax, as defined in MSDN: SELECT Clause (Transact-SQL), is as follows:

SELECT [ ALL | DISTINCT ]
[ TOP ( expression ) [ PERCENT ] [ WITH TIES ] ] 
<select_list> 

Where the expression can be a constant, function, any combination of column names, constants, and functions connected by an operator or operators, or a subquery.

This error occurred to me when I was debugging the PHP header() function:

header('Location: /aaa/bbb/ccc'); // error

If I use a relative path it works:

header('Location: aaa/bbb/ccc'); // success, but not what I wanted

However when I use an absolute path like /aaa/bbb/ccc, it gives the exact error:

Request exceeded the limit of 10 internal redirects due to probable configuration error. Use 'LimitInternalRecursion' to increase the limit if necessary. Use 'LogLevel debug' to get a backtrace.

It appears the header function redirects internally without going HTTP at all which is weird. After some tests and trials, I found the solution of adding exit after header():

header('Location: /aaa/bbb/ccc');
exit;

And it works properly.

but as for this method, I don't understand the purpose of Integer.MAX_VALUE and Integer.MIN_VALUE.

By starting out with smallest set to Integer.MAX_VALUE and largest set to Integer.MIN_VALUE, they don't have to worry later about the special case where smallest and largest don't have a value yet. If the data I'm looking through has a 10 as the first value, then numbers[i]<smallest will be true (because 10 is < Integer.MAX_VALUE) and we'll update smallest to be 10. Similarly, numbers[i]>largest will be true because 10 is > Integer.MIN_VALUE and we'll update largest. And so on.

Of course, when doing this, you must ensure that you have at least one value in the data you're looking at. Otherwise, you end up with apocryphal numbers in smallest and largest.

Note the point Onome Sotu makes in the comments:

...if the first item in the array is larger than the rest, then the largest item will always be Integer.MIN_VALUE because of the else-if statement.

Which is true; here's a simpler example demonstrating the problem (live copy):

public class Example
{
    public static void main(String[] args) throws Exception {
        int[] values = {5, 1, 2};
        int smallest = Integer.MAX_VALUE;
        int largest  = Integer.MIN_VALUE;
        for (int value : values) {
            if (value < smallest) {
                smallest = value;
            } else if (value > largest) {
                largest = value;
            }
        }
        System.out.println(smallest + ", " + largest); // 1, 2 -- WRONG
    }
}

To fix it, either:

1. Don't use else, or

2. Start with smallest and largest equal to the first element, and then loop the remaining elements, keeping the else if.

Here's an example of that second one (live copy):

public class Example
{
    public static void main(String[] args) throws Exception {
        int[] values = {5, 1, 2};
        int smallest = values[0];
        int largest  = values[0];
        for (int n = 1; n < values.length; ++n) {
            int value = values[n];
            if (value < smallest) {
                smallest = value;
            } else if (value > largest) {
                largest = value;
            }
        }
        System.out.println(smallest + ", " + largest); // 1, 5
    }
}

What's the memory profile of your machine ? e.g. if you run top, how much free memory do you have ?

I suspect UnixProcess performs a fork() and it's simply not getting enough memory from the OS (if memory serves, it'll fork() to duplicate the process and then exec() to run the ls in the new memory process, and it's not getting as far as that)

EDIT: Re. your overcommit solution, it permits overcommitting of system memory, possibly allowing processes to allocate (but not use) more memory than is actually available. So I guess that the fork() duplicates the Java process memory as discussed in the comments below. Of course you don't use the memory since the 'ls' replaces the duplicate Java process.

return "default" if x is None else x

try the above.

Step1. $ cd [your working path of code]

Step2. $ svn commit [your server path ] -m 'Add commit message'

For help use $ svn help commit

A simple solution without pandas:

import numpy as np

def auto_corrcoef(x):
   return np.corrcoef(x[1:-1], x[2:])[0,1]

I had the same problem but was able to fix it by doing the following:

Right-click on the project -> Properties, then add the JAR (odjbc6 or 14) file in the deployment assembly.

I want to point to the way Wordpress handles this:

define( 'ABSPATH', dirname( __FILE__ ) . '/' );

As Wordpress is very heavy used all over the web and also works fine locally I have much trust in this method. You can find this definition on the bottom of your wordpress wp-config.php file

Calling window.setTimeout(function, delay) will allow you to accomplish this. Here's an example that will automatically close the alert 2 seconds (or 2000 milliseconds) after it is displayed.

$(".alert-message").alert();
window.setTimeout(function() { $(".alert-message").alert('close'); }, 2000);

If you want to wrap it in a nifty function you could do this.

function createAutoClosingAlert(selector, delay) {
   var alert = $(selector).alert();
   window.setTimeout(function() { alert.alert('close') }, delay);
}

Then you could use it like so...

createAutoClosingAlert(".alert-message", 2000);

I am certain there are more elegant ways to accomplish this.

I think you want to lowercase the checked value? Try:

var jIsHasKids = $('#chkIsHasKids:checked').val().toLowerCase();

or you want to check it, then get its value as lowercase:

var jIsHasKids = $('#chkIsHasKids').attr("checked", true).val().toLowerCase();

One issue which doesn't seem to have been mentioned is that this error can crop up due to a problem with the code that has nothing to do with indentation.

For example, take the following script:

def add_one(x):
    try:
        return x + 1
add_one(5)

This returns an IndentationError: unexpected unindent when the problem is of course a missing except: statement.

My point: check the code above where the unexpected (un)indent is reported!

New, resurrected project site (Win7 compability and more!): http://sshwindows.sourceforge.net

1st January 2012

• OpenSSH for Windows 5.6p1-2 based release created!!
• Happy New Year all! Since COpSSH has started charging I've resurrected this project
• Updated all binaries to current releases
• Added several new supporting DLLs as required by all executables in package
• Renamed switch.exe to bash.exe to remove the need to modify and compile mkpasswd.exe each build
• Please note there is a very minor bug in this release, detailed in the docs. I'm working on fixing this, anyone who can code in C and can offer a bit of help it would be much appreciated

If you're using Entity Framework, exception.ToString() will not gives you the details of DbEntityValidationException exceptions. You might want to use the same method to handle all your exception, like:

catch (Exception ex)
{
   Log.Error(GetExceptionDetails(ex));
}

Where GetExceptionDetails contains something like this:

public static string GetExceptionDetails(Exception ex)
{
    var stringBuilder = new StringBuilder();

    while (ex != null)
    {
        switch (ex)
        {
            case DbEntityValidationException dbEx:
                var errorMessages = dbEx.EntityValidationErrors.SelectMany(x => x.ValidationErrors).Select(x => x.ErrorMessage);
                var fullErrorMessage = string.Join("; ", errorMessages);
                var message = string.Concat(ex.Message, " The validation errors are: ", fullErrorMessage);

                stringBuilder.Insert(0, dbEx.StackTrace);
                stringBuilder.Insert(0, message);
                break;

            default:
                stringBuilder.Insert(0, ex.StackTrace);
                stringBuilder.Insert(0, ex.Message);
                break;
        }

        ex = ex.InnerException;
    }

    return stringBuilder.ToString();
}

Fetch does not use cookie by default. To enable cookie, do this:

fetch(url, {
  credentials: "same-origin"
}).then(...).catch(...);

My solution would be to use a parameterised query, as the connectivity objects take care of formatting the data correctly (including ensuring the correct data-type, and escaping "dangerous" characters where applicable):

// Assuming "conn" is an open SqlConnection
using(SqlCommand cmd = new SqlCommand("INSERT INTO mssqltable(varbinarycolumn) VALUES (@binaryValue)", conn))
{
    // Replace 8000, below, with the correct size of the field
    cmd.Parameters.Add("@binaryValue", SqlDbType.VarBinary, 8000).Value = arraytoinsert;
    cmd.ExecuteNonQuery();
}

Edit: Added the wrapping "using" statement as suggested by John Saunders to correctly dispose of the SqlCommand after it is finished with

Some type of input hasn't got the :after or :before pseudo-element, so you can use a background-image with an SVG text element:

    input {
       background-image:url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' version='1.1' height='50px' width='120px'><text x='0' y='15' fill='gray' font-size='15'>Type Something...</text></svg>");
       background-repeat: no-repeat;
    }

    input:focus {
       background-image: none;
    }

My codepen: https://codepen.io/Scario/pen/BaagbeZ

I have created a tool that combines dex2jar, jd-core and apktool: https://github.com/dirkvranckaert/AndroidDecompiler Just checkout the project locally and run the script as documented and you'll get all the resources and sources decompiled.

If you are looking to validate length use minLength and maxLength instead.

It is because of this line:

printf ("Hi %s,</br />", $name);

You should not print/echo anything before sending the headers.

i also faced similar issue. I could able to solve this by setting JAVA_HOME in Environment variable in windows. Setting JAVA_HOME in batch file is not working in this case.

I had the same problem, where the character index reported in the java error message was incorrect. I narrowed it down to the double quote characters just prior to the reported position being hex 094 (cancel instead of quote, but represented as a quote) instead of hex 022. As soon as I swapped for the hex 022 variant all was fine.

With git show you can get a similar result. For look the commit (like it looks on git log view) with the list of files included in, use:

git show --name-only [commit-id_A]^..[commit-id_B]

Where [commit-id_A] is the initial commit and [commit-id_B] is the last commit than you want to show.

Special attention with ^ symbol. If you don't put that, the commit-id_A information will not deploy.

Try this version which does not require order to be the same but does support having multiple of the same value. They match only if each has the same quantity of any value.

public boolean arraysMatch(List<String> elements1, List<String> elements2) {
    // Optional quick test since size must match
    if (elements1.size() != elements2.size()) {
        return false;
    }
    List<String> work = newArrayList(elements2);
    for (String element : elements1) {
        if (!work.remove(element)) {
            return false;
        }
    }
    return work.isEmpty();
}

I had the same problem and was able to use the following:

// Load the directory as a resource
URL dir_url = ClassLoader.getSystemResource(dir_path);
// Turn the resource into a File object
File dir = new File(dir_url.toURI());
// List the directory
String files = dir.list()

Because both a and b have only one axis, as their shape is (3), and the axis parameter specifically refers to the axis of the elements to concatenate.

this example should clarify what concatenate is doing with axis. Take two vectors with two axis, with shape (2,3):

a = np.array([[1,5,9], [2,6,10]])
b = np.array([[3,7,11], [4,8,12]])

concatenates along the 1st axis (rows of the 1st, then rows of the 2nd):

np.concatenate((a,b), axis=0)
array([[ 1,  5,  9],
       [ 2,  6, 10],
       [ 3,  7, 11],
       [ 4,  8, 12]])

concatenates along the 2nd axis (columns of the 1st, then columns of the 2nd):

np.concatenate((a, b), axis=1)
array([[ 1,  5,  9,  3,  7, 11],
       [ 2,  6, 10,  4,  8, 12]])

to obtain the output you presented, you can use vstack

a = np.array([1,2,3])
b = np.array([4,5,6])
np.vstack((a, b))
array([[1, 2, 3],
       [4, 5, 6]])

You can still do it with concatenate, but you need to reshape them first:

np.concatenate((a.reshape(1,3), b.reshape(1,3)))
array([[1, 2, 3],
       [4, 5, 6]])

Finally, as proposed in the comments, one way to reshape them is to use newaxis:

np.concatenate((a[np.newaxis,:], b[np.newaxis,:]))

This would do it:

$("#header ul").append('<li><a href="/user/messages"><span class="tab">Message Center</span></a></li>');

Two things:

• You can just append the <li> to the <ul> itself.
• You need to use the opposite type of quotes than what you're using in your HTML. So since you're using double quotes in your attributes, surround the code with single quotes.

The compiler doesn't know it's an array, it's trusting the programmer. Deleting a pointer to a single int with delete [] would result in undefined behavior. Your second main() example is unsafe, even if it doesn't immediately crash.

The compiler does have to keep track of how many objects need to be deleted somehow. It may do this by over-allocating enough to store the array size. For more details, see the C++ Super FAQ.

It evaluates to the left operand if the left operand is truthy, and the right operand otherwise.

In pseudocode,

foo = bar ?: baz;

roughly resolves to

foo = bar ? bar : baz;

or

if (bar) {
    foo = bar;
} else {
    foo = baz;
}

with the difference that bar will only be evaluated once.

You can also use this to do a "self-check" of foo as demonstrated in the code example you posted:

foo = foo ?: bar;

This will assign bar to foo if foo is null or falsey, else it will leave foo unchanged.

Some more examples:

<?php
    var_dump(5 ?: 0); // 5
    var_dump(false ?: 0); // 0
    var_dump(null ?: 'foo'); // 'foo'
    var_dump(true ?: 123); // true
    var_dump('rock' ?: 'roll'); // 'rock'
?>

By the way, it's called the Elvis operator.

Best is

date -r filename +"%Y-%m-%d %H:%M:%S"

If you really want to remove all of the repository, leaving only the working directory then it should be as simple as this.

rm -rf .git

The usual provisos about rm -rf apply. Make sure you have an up to date backup and are absolutely sure that you're in the right place before running the command. etc., etc.

Online index rebuilds are less intrusive when it comes to locking tables. Offline rebuilds cause heavy locking of tables which can cause significant blocking issues for things that are trying to access the database while the rebuild takes place.

"Table locks are applied for the duration of the index operation [during an offline rebuild]. An offline index operation that creates, rebuilds, or drops a clustered, spatial, or XML index, or rebuilds or drops a nonclustered index, acquires a Schema modification (Sch-M) lock on the table. This prevents all user access to the underlying table for the duration of the operation. An offline index operation that creates a nonclustered index acquires a Shared (S) lock on the table. This prevents updates to the underlying table but allows read operations, such as SELECT statements."

http://msdn.microsoft.com/en-us/library/ms188388(v=sql.110).aspx

Additionally online index rebuilds are a enterprise (or developer) version only feature.

Typescript recognizes the Date interface out of the box - just like you would with a number, string, or custom type. So Just use:

myDate : Date;

I personally really hate the alternate syntax. One nice thing about the braces is that most IDEs, vim, etc all have bracket highlighting. In my text editor I can double click a brace and it will highlight the whole chunk so I can see where it ends and begins very easily.

I don't know of a single editor that can highlight endif, endforeach, etc.

If a case-insensitive comparison is acceptable, just use =:

=IF(A1="ENG",1,0)

const is for compile-time constants. You could just make it static readonly, but that would only apply to the METRICS variable itself (which should typically be Metrics instead, by .NET naming conventions). It wouldn't make the list immutable - so someone could call METRICS.Add("shouldn't be here");

You may want to use a ReadOnlyCollection<T> to wrap it. For example:

public static readonly IList<String> Metrics = new ReadOnlyCollection<string>
    (new List<String> { 
         SourceFile.LoC, SourceFile.McCabe, SourceFile.NoM,
         SourceFile.NoA, SourceFile.FanOut, SourceFile.FanIn, 
         SourceFile.Par, SourceFile.Ndc, SourceFile.Calls });

ReadOnlyCollection<T> just wraps a potentially-mutable collection, but as nothing else will have access to the List<T> afterwards, you can regard the overall collection as immutable.

(The capitalization here is mostly guesswork - using fuller names would make them clearer, IMO.)

Whether you declare it as IList<string>, IEnumerable<string>, ReadOnlyCollection<string> or something else is up to you... if you expect that it should only be treated as a sequence, then IEnumerable<string> would probably be most appropriate. If the order matters and you want people to be able to access it by index, IList<T> may be appropriate. If you want to make the immutability apparent, declaring it as ReadOnlyCollection<T> could be handy - but inflexible.

Screen

If process is running in a screen session you can use screen's log command to log the output of that window to a file:

Switch to the script's window, C-a H to log.
Now you can :

$ tail -f screenlog.2 | grep whatever

From screen's man page:

log [on|off]

Start/stop writing output of the current window to a file "screenlog.n" in the window's default directory, where n is the number of the current window. This filename can be changed with the 'logfile' command. If no parameter is given, the state of logging is toggled. The session log is appended to the previous contents of the file if it already exists. The current contents and the contents of the scrollback history are not included in the session log. Default is 'off'.

I'm sure tmux has something similar as well.

If you are refering to res strings, use CDATA with \n.

<string name="about">
    <![CDATA[
 Author: Sergio Abreu\n
 http://sites.sitesbr.net
  ]]>        
</string>

psexec \\RemoteComputer cmd.exe

or use ssh or TeamViewer or RemoteDesktop!

Mine was a TLS version incompatible error.

Previously it was TLSv1 I changed it TLSV1.2 this solved my problem.

SQL doesn't typically allow you to reference column aliases in WHERE, GROUP BY or HAVING clauses. MySQL does support referencing column aliases in the GROUP BY and HAVING, but I stress that it will cause problems when porting such queries to other databases.

When in doubt, use the actual column name:

SELECT t.lat AS latitude 
  FROM poi_table t
 WHERE t.lat < 500

I added a table alias to make it easier to see what is an actual column vs alias.

Update

A computed column, like the one you see here:

SELECT *, 
       ( 6371*1000 * acos( cos( radians(42.3936868308) ) * cos( radians( lat ) ) * cos( radians( lon ) - radians(-72.5277256966) ) + sin( radians(42.3936868308) ) * sin( radians( lat ) ) ) ) AS distance
  FROM poi_table 
 WHERE distance < 500;

...doesn't change that you can not reference a column alias in the WHERE clause. For that query to work, you'd have to use:

SELECT *, 
       ( 6371*1000 * acos( cos( radians(42.3936868308) ) * cos( radians( lat ) ) * cos( radians( lon ) - radians(-72.5277256966) ) + sin( radians(42.3936868308) ) * sin( radians( lat ) ) ) ) AS distance
  FROM poi_table
 WHERE ( 6371*1000 * acos( cos( radians(42.3936868308) ) * cos( radians( lat ) ) * cos( radians( lon ) - radians(-72.5277256966) ) + sin( radians(42.3936868308) ) * sin( radians( lat ) ) ) ) < 500;

Be aware that using a function on a column (IE: RADIANS(lat)) will render an index useless, if one exists on the column.

Extending Magpie's answer, here is the code for action filter which I use in my project.

It works with ASP Core RC2!

public class ReCaptchaAttribute : ActionFilterAttribute
{
    private readonly string CAPTCHA_URL = "https://www.google.com/recaptcha/api/siteverify";
    private readonly string SECRET = "your_secret";

    public override void OnActionExecuting(ActionExecutingContext filterContext)
    {
        try
        {
            // Get recaptcha value
            var captchaResponse = filterContext.HttpContext.Request.Form["g-recaptcha-response"];

            using (var client = new HttpClient())
            {
                var values = new Dictionary<string, string>
                {
                    { "secret", SECRET },
                    { "response", captchaResponse },
                    { "remoteip", filterContext.HttpContext.Request.HttpContext.Connection.RemoteIpAddress.ToString() }
                };


                var content = new FormUrlEncodedContent(values);

                var result = client.PostAsync(CAPTCHA_URL, content).Result;

                if (result.IsSuccessStatusCode)
                {
                    string responseString = result.Content.ReadAsStringAsync().Result;

                    var captchaResult = JsonConvert.DeserializeObject<CaptchaResponseViewModel>(responseString);

                    if (!captchaResult.Success)
                    {
                        ((Controller)filterContext.Controller).ModelState.AddModelError("ReCaptcha", "Captcha not solved");
                    }
                } else
                {
                    ((Controller)filterContext.Controller).ModelState.AddModelError("ReCaptcha", "Captcha error");
                }
            }

        }
        catch (System.Exception)
        {
            ((Controller)filterContext.Controller).ModelState.AddModelError("ReCaptcha", "Unknown error");
        }
    }
}

And use it in your code like

[ReCaptcha]
    public IActionResult Authenticate()
    {

        if (!ModelState.IsValid)
        {
            return View(
                "Login",
                new ReturnUrlViewModel
                {
                    ReturnUrl = Request.Query["returnurl"],
                    IsError = true,
                    Error = "Wrong reCAPTCHA"
                }
            );
        }

Hey, What you can do is apply a fixed width to both the containers and then use another div class where clear:both, like

div#left {

width: 600px;
float: left;
}

div#right {

width: 240px;
float: right;

}

div.clear {

clear:both;

}

place a the clear div under left and right container.

The way you use the csv module changed in Python 3 in several respects (docs), at least with respect to how you need to open the file. Anyway, something like

import csv
with open('test.csv', 'w', newline='') as fp:
    a = csv.writer(fp, delimiter=',')
    data = [['Me', 'You'],
            ['293', '219'],
            ['54', '13']]
    a.writerows(data)

should work.

Rails >= 3.2 (including Rails 4+ and 5+):

class Countries < ActiveRecord::Base
  self.table_name = "cc"
end

Rails <= 3.1:

class Countries < ActiveRecord::Base
  self.set_table_name "cc"
  ...
end

I'm using this solution and works in IE8 or greater.

if (typeof Element.prototype.addEventListener === 'undefined') {
    Element.prototype.addEventListener = function (e, callback) {
      e = 'on' + e;
      return this.attachEvent(e, callback);
    };
  }

And then:

<button class="click-me">Say Hello</button>

<script>
  document.querySelectorAll('.click-me')[0].addEventListener('click', function () {
    console.log('Hello');
  });
</script>

This will work both IE8 and Chrome, Firefox, etc.

This should solve your problem:

select replace(to_char(a, '90D90'),'.00','')
from
(
select 50 a from dual
union
select 50.57 from dual
union
select 5.57 from dual
union
select 0.35 from dual
union
select 0.4 from dual
);

Give a look also as this SQL Fiddle for test.

Delay the special handling of the last item until after the loop.

>>> for i in (1, 2, 3):
...     pass
...
>>> i
3

That's about it. There is no magic built-in function...

Pull Request - I've used most of the already submitted ideas but one that I also often use is ( especially if its from another dev ) doing a Pull Request which gives a handy way to review all of the changes in a merge before it takes place. I know that is GitHub not git but it sure is handy.

late but maybe useful

When app is not running

- (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions

is called ..

where u need to check for push notification

NSDictionary *notification = [launchOptions objectForKey:UIApplicationLaunchOptionsRemoteNotificationKey];
if (notification) {
    NSLog(@"app recieved notification from remote%@",notification);
    [self application:application didReceiveRemoteNotification:notification];
} else {
    NSLog(@"app did not recieve notification");
}

I was looking for caching for my phonegap app storage and I found the answer of @TecHunter which is great but done using localCache.

I found and come to know that localStorage is another alternative to cache the data returned by ajax call. So, I created one demo using localStorage which will help others who may want to use localStorage instead of localCache for caching.

Ajax Call:

$.ajax({
    type: "POST",
    dataType: 'json',
    contentType: "application/json; charset=utf-8",
    url: url,
    data: '{"Id":"' + Id + '"}',
    cache: true, //It must "true" if you want to cache else "false"
    //async: false,
    success: function (data) {
        var resData = JSON.parse(data);
        var Info = resData.Info;
        if (Info) {
            customerName = Info.FirstName;
        }
    },
    error: function (xhr, textStatus, error) {
        alert("Error Happened!");
    }
});

To store data into localStorage:

$.ajaxPrefilter(function (options, originalOptions, jqXHR) {
if (options.cache) {
    var success = originalOptions.success || $.noop,
        url = originalOptions.url;

    options.cache = false; //remove jQuery cache as we have our own localStorage
    options.beforeSend = function () {
        if (localStorage.getItem(url)) {
            success(localStorage.getItem(url));
            return false;
        }
        return true;
    };
    options.success = function (data, textStatus) {
        var responseData = JSON.stringify(data.responseJSON);
        localStorage.setItem(url, responseData);
        if ($.isFunction(success)) success(responseJSON); //call back to original ajax call
    };
}
});

If you want to remove localStorage, use following statement wherever you want:

localStorage.removeItem("Info");

Hope it helps others!

http access and get the html files served on 8080:

>npm install -g http-server

>http-server

if you have public (./public/index.html) folder it will be the root of your server if not will be the one that you run the server. you could send the folder as paramenter ex:

http-server [path] [options]

expected Result:

*> Starting up http-server, serving ./public Available on:

http://LOCALIP:8080

http://127.0.0.1:8080

Hit CTRL-C to stop the server

http-server stopped.*

Now, you can run: http://localhost:8080

will open the index.html on the ./public folder

references: https://www.npmjs.com/package/http-server

Learning C forces you to think harder about some issues such as explicit and implicit memory management or storage sizes of basic data types at the time you write your code.

Once you have reached a point where you feel comfortable around C's features and misfeatures, you will probably have less trouble learning and writing in C++.

It is entirely possible that the C++ code you have seen did not look much different from standard C, but that may well be because it was not object oriented and did not use exceptions, object-orientation, templates or other advanced features.

There are several options, including using the method you demonstrate, With, and using a variable.

My preference is option 4 below: Dim a variable of type Worksheet and store the worksheet and call the methods on the variable or pass it to functions, however any of the options work.

Sub Test()
  Dim SheetName As String
  Dim SearchText As String
  Dim FoundRange As Range

  SheetName = "test"      
  SearchText = "abc"

  ' 0. If you know the sheet is the ActiveSheet, you can use if directly.
  Set FoundRange = ActiveSheet.UsedRange.Find(What:=SearchText)
  ' Since I usually have a lot of Subs/Functions, I don't use this method often.
  ' If I do, I store it in a variable to make it easy to change in the future or
  ' to pass to functions, e.g.: Set MySheet = ActiveSheet
  ' If your methods need to work with multiple worksheets at the same time, using
  ' ActiveSheet probably isn't a good idea and you should just specify the sheets.

  ' 1. Using Sheets or Worksheets (Least efficient if repeating or calling multiple times)
  Set FoundRange = Sheets(SheetName).UsedRange.Find(What:=SearchText)
  Set FoundRange = Worksheets(SheetName).UsedRange.Find(What:=SearchText)

  ' 2. Using Named Sheet, i.e. Sheet1 (if Worksheet is named "Sheet1"). The
  ' sheet names use the title/name of the worksheet, however the name must
  ' be a valid VBA identifier (no spaces or special characters. Use the Object
  ' Browser to find the sheet names if it isn't obvious. (More efficient than #1)
  Set FoundRange = Sheet1.UsedRange.Find(What:=SearchText)

  ' 3. Using "With" (more efficient than #1)
  With Sheets(SheetName)
    Set FoundRange = .UsedRange.Find(What:=SearchText)
  End With
  ' or possibly...
  With Sheets(SheetName).UsedRange
    Set FoundRange = .Find(What:=SearchText)
  End With

  ' 4. Using Worksheet variable (more efficient than 1)
  Dim MySheet As Worksheet
  Set MySheet = Worksheets(SheetName)
  Set FoundRange = MySheet.UsedRange.Find(What:=SearchText)

  ' Calling a Function/Sub
  Test2 Sheets(SheetName) ' Option 1
  Test2 Sheet1 ' Option 2
  Test2 MySheet ' Option 4

End Sub

Sub Test2(TestSheet As Worksheet)
    Dim RowIndex As Long
    For RowIndex = 1 To TestSheet.UsedRange.Rows.Count
        If TestSheet.Cells(RowIndex, 1).Value = "SomeValue" Then
            ' Do something
        End If
    Next RowIndex
End Sub

Use a loop

for(var i = 0; i < obj.length; ++i){
   //do something with obj[i]
   for(var ind in obj[i]) {
        console.log(ind);
        for(var vals in obj[i][ind]){
            console.log(vals, obj[i][ind][vals]);
        }
   }
}

Demo: http://jsfiddle.net/maniator/pngmL/

Which WebControl are you using? Did you try?

DateTime.Now.ToString("yyyy-MM-dd");

Worked for me,

select lcase((insert( insert( insert( insert(hex(BLOB_FIELD),9,0,'-'), 14,0,'-'), 19,0,'-'), 24,0,'-'))) as FIELD_ID from TABLE_WITH_BLOB where ID = 'row id';

xxhdpi was not specified before but now new devices S4, HTC one are surely comes inside xxhdpi .These device dpi are around 440. I do not know exact limit for xxhdpi See how to develop android application for xxhdpi device Samsung S4 I know this is late answer but as thing had change since the question asked

Note Google Nexus 10 need to add a 144*144px icon in the drawable-xxhdpi or drawable-480dpi folder.

Another convenient way to copy the values from src ArrayList to dest Arraylist is as follows:

ArrayList<String> src = new ArrayList<String>();
src.add("test string1");
src.add("test string2");
ArrayList<String> dest= new ArrayList<String>();
dest.addAll(src);

This is actual copying of values and not just copying of reference.

ssh -v -L 8783:localhost:8783 [email protected]
...
channel 3: open failed: connect failed: Connection refused

When you connect to port 8783 on your local system, that connection is tunneled through your ssh link to the ssh server on server.com. From there, the ssh server makes TCP connection to localhost port 8783 and relays data between the tunneled connection and the connection to target of the tunnel.

The "connection refused" error is coming from the ssh server on server.com when it tries to make the TCP connection to the target of the tunnel. "Connection refused" means that a connection attempt was rejected. The simplest explanation for the rejection is that, on server.com, there's nothing listening for connections on localhost port 8783. In other words, the server software that you were trying to tunnel to isn't running, or else it is running but it's not listening on that port.

$(":text[value='']").doStuff();

?

By the way, your call of:

$('input[id=cmdSubmit]')...

can be greatly simplified and speeded up with:

$('#cmdSubmit')...

What you have should work, unless ${STATUS} is empty. It would probably be better to do:

if ! [ "${STATUS}" -eq 200 ] 2> /dev/null && [ "${STRING}" != "${VALUE}" ]; then

or

if [ "${STATUS}" != 200 ] && [ "${STRING}" != "${VALUE}" ]; then

It's hard to say, since you haven't shown us exactly what is going wrong with your script.

Personal opinion: never use [[. It suppresses important error messages and is not portable to different shells.

For context, today is Jan 28, 2019.

On my Mac, I did two things to resolve this problem:

1. Run the following command in your terminal:
   sudo xcode-select --install

2. Restart your Mac.

Until I restarted the computer, the problem kept occurring in my Android Studio. After reboot, it was working just fine. Also note that I did not execute any --switch commands as others are doing. I hope this helps.

To binary:

bin(byte)[2:].zfill(8)

Java uses managed memory, so the only way you can allocate memory is by using the new operator, and the only way you can deallocate memory is by relying on the garbage collector.

This memory management whitepaper (PDF) may help explain what's going on.

You can also call System.gc() to suggest that the garbage collector run immediately. However, the Java Runtime makes the final decision, not your code.

According to the Java documentation,

Calling the gc method suggests that the Java Virtual Machine expend effort toward recycling unused objects in order to make the memory they currently occupy available for quick reuse. When control returns from the method call, the Java Virtual Machine has made a best effort to reclaim space from all discarded objects.

Put an <audio> element on your page.
Get your audio element and call the play() method:

document.getElementById('yourAudioTag').play();

Check out this example: http://www.storiesinflight.com/html5/audio.html

This site uncovers some of the other cool things you can do such as load(), pause(), and a few other properties of the audio element.

When exactly you want to play this audio element is up to you. Read the text of the button and compare it to "no" if you like.

Alternatively

http://www.schillmania.com/projects/soundmanager2/

SoundManager 2 provides a easy to use API that allows sound to be played in any modern browser, including IE 6+. If the browser doesn't support HTML5, then it gets help from flash. If you want stricly HTML5 and no flash, there's a setting for that, preferFlash=false

It supports 100% Flash-free audio on iPad, iPhone (iOS4) and other HTML5-enabled devices + browsers

Use is as simple as:

<script src="soundmanager2.js"></script>
<script>
// where to find flash SWFs, if needed...
soundManager.url = '/path/to/swf-files/';

soundManager.onready(function() {
    soundManager.createSound({
        id: 'mySound',
        url: '/path/to/an.mp3'
    });

    // ...and play it
    soundManager.play('mySound');
});

Here's a demo of it in action: http://www.schillmania.com/projects/soundmanager2/demo/christmas-lights/

SET foreign_key_checks = 0; DELETE FROM yourtable; SET foreign_key_checks = 1;

Another reason for "lost update" can be the next:

• If the static getDerivedStateFromProps is defined then it is rerun in every update process according to official documentation https://reactjs.org/docs/react-component.html#updating.
• so if that state value comes from props at the beginning it is overwrite in every update.

If it is the problem then U can avoid setting the state during update, you should check the state parameter value like this

static getDerivedStateFromProps(props: TimeCorrectionProps, state: TimeCorrectionState): TimeCorrectionState {
   return state ? state : {disable: false, timeCorrection: props.timeCorrection};
}

Another solution is add a initialized property to state, and set it up in the first time (if the state is initialized to non null value.)

This is called partial functions and there are at least 3 ways to do this. My favorite way is using lambda because it avoids dependency on extra package and is the least verbose. Assume you have a function add(x, y) and you want to pass add(3, y) to some other function as parameter such that the other function decides the value for y.

Use lambda

# generic function takes op and its argument
def runOp(op, val):
    return op(val)

# declare full function
def add(x, y):
    return x+y

# run example
def main():
    f = lambda y: add(3, y)
    result = runOp(f, 1) # is 4

Create Your Own Wrapper

Here you need to create a function that returns the partial function. This is obviously lot more verbose.

# generic function takes op and its argument
def runOp(op, val):
    return op(val)

# declare full function
def add(x, y):
    return x+y

# declare partial function
def addPartial(x):
    def _wrapper(y):
        return add(x, y)
    return _wrapper

# run example
def main():
    f = addPartial(3)
    result = runOp(f, 1) # is 4

Use partial from functools

This is almost identical to lambda shown above. Then why do we need this? There are few reasons. In short, partial might be bit faster in some cases (see its implementation) and that you can use it for early binding vs lambda's late binding.

from functools import partial

# generic function takes op and its argument
def runOp(op, val):
    return op(val)

# declare full function
def add(x, y):
    return x+y

# run example
def main():
    f = partial(add, 3)
    result = runOp(f, 1) # is 4

For use in scripts/programs which need to support both python 2 and 3, the six module provides quote and urlencode functions:

>>> from six.moves.urllib.parse import urlencode, quote
>>> data = {'some': 'query', 'for': 'encoding'}
>>> urlencode(data)
'some=query&for=encoding'
>>> url = '/some/url/with spaces and %;!<>&'
>>> quote(url)
'/some/url/with%20spaces%20and%20%25%3B%21%3C%3E%26'

When you develop an emulator you are interpreting the processor assembly that the system is working on (Z80, 8080, PS CPU, etc.).

You also need to emulate all peripherals that the system has (video output, controller).

You should start writing emulators for the simpe systems like the good old Game Boy (that use a Z80 processor, am I not not mistaking) OR for C64.

You can use:

from io import StringIO # python3; python2: BytesIO 
import boto3

bucket = 'my_bucket_name' # already created on S3
csv_buffer = StringIO()
df.to_csv(csv_buffer)
s3_resource = boto3.resource('s3')
s3_resource.Object(bucket, 'df.csv').put(Body=csv_buffer.getvalue())

Just return the following:

return Unauthorized();

You can just insert the following in to your main html page, or a function:

canvas.width = window.innerWidth;
canvas.height = window.innerHeight;

Then to remove the margins on the page

html, body {
    margin: 0 !important;
    padding: 0 !important;
}

That should do the job

You're trying to assign the return value of clients.get(clients.size()) to the string hey, but the object returned is a ClientThread, not a string. As Andre mentioned, you need to use the proper index as well.

As far as your second error is concerned, there is no static method remove() on the type ClientThread. Really, you likely wanted the remove method of your List instance, clients.

You can remove the last item from the list, if there is one, as follows. Since remove also returns the object that was removed, you can capture the return and use it to print out the name:

int size = clients.size();

if (size > 0) {
    ClientThread client = clients.remove(size - 1);

    System.out.println(client + " has logged out.");
    System.out.println("CONNECTED PLAYERS: " + clients.size());
}

I would say, it depends on kind of dev team you are and your application needs.

For example, if you require a lot of querying, that mostly means it would be more work for your developers to use Redis, where your data might be stored in variety of specialized data structures, customized for each type of object for efficiency. In MongoDB the same queries might be easier because the structure is more consistent across your data. On the other hand, in Redis, sheer speed of the response to those queries is the payoff for the extra work of dealing with the variety of structures your data might be stored with.

MongoDB offers simplicity, much shorter learning curve for developers with traditional DB and SQL experience. However, Redis's non-traditional approach requires more effort to learn, but greater flexibility.

Eg. A cache layer can probably be better implemented in Redis. For more schema-able data, MongoDB is better. [Note: both MongoDB and Redis are technically schemaless]

If you ask me, my personal choice is Redis for most requirements.

Lastly, I hope by now you have seen http://antirez.com/post/MongoDB-and-Redis.html

This is a nice way of sorting a table:

$(document).ready(function () {_x000D_
                $('th').each(function (col) {_x000D_
                    $(this).hover(_x000D_
                            function () {_x000D_
                                $(this).addClass('focus');_x000D_
                            },_x000D_
                            function () {_x000D_
                                $(this).removeClass('focus');_x000D_
                            }_x000D_
                    );_x000D_
                    $(this).click(function () {_x000D_
                        if ($(this).is('.asc')) {_x000D_
                            $(this).removeClass('asc');_x000D_
                            $(this).addClass('desc selected');_x000D_
                            sortOrder = -1;_x000D_
                        } else {_x000D_
                            $(this).addClass('asc selected');_x000D_
                            $(this).removeClass('desc');_x000D_
                            sortOrder = 1;_x000D_
                        }_x000D_
                        $(this).siblings().removeClass('asc selected');_x000D_
                        $(this).siblings().removeClass('desc selected');_x000D_
                        var arrData = $('table').find('tbody >tr:has(td)').get();_x000D_
                        arrData.sort(function (a, b) {_x000D_
                            var val1 = $(a).children('td').eq(col).text().toUpperCase();_x000D_
                            var val2 = $(b).children('td').eq(col).text().toUpperCase();_x000D_
                            if ($.isNumeric(val1) && $.isNumeric(val2))_x000D_
                                return sortOrder == 1 ? val1 - val2 : val2 - val1;_x000D_
                            else_x000D_
                                return (val1 < val2) ? -sortOrder : (val1 > val2) ? sortOrder : 0;_x000D_
                        });_x000D_
                        $.each(arrData, function (index, row) {_x000D_
                            $('tbody').append(row);_x000D_
                        });_x000D_
                    });_x000D_
                });_x000D_
            });

            table, th, td {_x000D_
            border: 1px solid black;_x000D_
        }_x000D_
        th {_x000D_
            cursor: pointer;_x000D_
        }

<script src="https://ajax.googleapis.com/ajax/libs/jquery/3.3.1/jquery.min.js"></script>_x000D_
<table>_x000D_
        <tr><th>id</th><th>name</th><th>age</th></tr>_x000D_
        <tr><td>1</td><td>Julian</td><td>31</td></tr>_x000D_
        <tr><td>2</td><td>Bert</td><td>12</td></tr>_x000D_
        <tr><td>3</td><td>Xavier</td><td>25</td></tr>_x000D_
        <tr><td>4</td><td>Mindy</td><td>32</td></tr>_x000D_
        <tr><td>5</td><td>David</td><td>40</td></tr>_x000D_
    </table>

The fiddle can be found here:
https://jsfiddle.net/e3s84Luw/

The explanation can be found here: https://www.learningjquery.com/2017/03/how-to-sort-html-table-using-jquery-code

You can always do something like this:

update  mytable t
set     SomeColumn = c.ComputedValue
from    (select *, 42 as ComputedValue from mytable where id = 1) c
where t.id = c.id 

You can now also use with statement inside update

update  mytable t
set     SomeColumn = c.ComputedValue
from    (with abc as (select *, 43 as ComputedValue_new from mytable where id = 1
         select *, 42 as ComputedValue, abc.ComputedValue_new  from mytable n1
           inner join abc on n1.id=abc.id) c
where t.id = c.id 

Or another typical standard in the industry is to have a Constants.java named class file containing all the constants to be used all over the project.

$_SERVER['HTTP_X_REQUESTED_WITH']

RFC3875, 4.1.18:

Meta-variables with names beginning with HTTP_ contain values read from the client request header fields, if the protocol used is HTTP. The HTTP header field name is converted to upper case, has all occurrences of - replaced with _ and has HTTP_ prepended to give the meta-variable name.

Assuming that the name is everywhere "Microsoft .NET Framework 3.5 SP1", you can use this:

string uninstallKey = @"SOFTWARE\Microsoft\Windows\CurrentVersion\Uninstall";
using (RegistryKey rk = Registry.LocalMachine.OpenSubKey(uninstallKey))
{
    return rk.GetSubKeyNames().Contains("Microsoft .NET Framework 3.5 SP1");
}

drop database <db_name>;
FLUSH PRIVILEGES;

Just make round(x-0.5) this will always return the next rounded down Integer value of your Float. You can also easily round up by do round(x+0.5)

getText(): Get the visible (i.e. not hidden by CSS) innerText of this element, including sub-elements, without any leading or trailing whitespace.

getAttribute(String attrName): Get the value of a the given attribute of the element. Will return the current value, even if this has been modified after the page has been loaded. More exactly, this method will return the value of the given attribute, unless that attribute is not present, in which case the value of the property with the same name is returned (for example for the "value" property of a textarea element). If neither value is set, null is returned. The "style" attribute is converted as best can be to a text representation with a trailing semi-colon. The following are deemed to be "boolean" attributes, and will return either "true" or null: async, autofocus, autoplay, checked, compact, complete, controls, declare, defaultchecked, defaultselected, defer, disabled, draggable, ended, formnovalidate, hidden, indeterminate, iscontenteditable, ismap, itemscope, loop, multiple, muted, nohref, noresize, noshade, novalidate, nowrap, open, paused, pubdate, readonly, required, reversed, scoped, seamless, seeking, selected, spellcheck, truespeed, willvalidate Finally, the following commonly mis-capitalized attribute/property names are evaluated as expected: "class" "readonly"

getText() return the visible text of the element.

getAttribute(String attrName) returns the value of the attribute passed as parameter.

None of these solutions has helped me in my Electron App.

My solution (workaround):

npm install jquery

In your index.js file:

var jQuery = $ = require('jquery');

In your .js files write yours jQuery functions in this way:

jQuery(document).ready(function() {

To get the exact output you requested, you can use the below:

CAST(DATEPART(YEAR, @Date) AS NVARCHAR(10)) + ' - Q' + CAST(DATEPART(QUARTER, @Date) AS NVARCHAR(10))

This will give you an outputs like: "2015 - Q1", "2013 - Q3", etc.

Based on the C99 Specification: a == (a / b) * b + a % b

We can write a function to calculate (a % b) == a - (a / b) * b!

int remainder(int a, int b)
{
    return a - (a / b) * b;
}

For modulo operation, we can have the following function (assuming b > 0)

int mod(int a, int b)
{
    int r = a % b;
    return r < 0 ? r + b : r;
}

My conclusion is that a % b in C is a remainder operation and NOT a modulo operation.

In case that anyone still has this need (I have), I have written a library myself to deal with this problem. See here. It isn't completely automatic in that you have to describe all the fields in your classes, but it is as close as what we can get as C++ lacks reflection.

Suppose you have a function:

def sinus2d(x, y):
    return np.sin(x) + np.sin(y)

and you want, for example, to see what it looks like in the range 0 to 2*pi. How would you do it? There np.meshgrid comes in:

xx, yy = np.meshgrid(np.linspace(0,2*np.pi,100), np.linspace(0,2*np.pi,100))
z = sinus2d(xx, yy) # Create the image on this grid

and such a plot would look like:

import matplotlib.pyplot as plt
plt.imshow(z, origin='lower', interpolation='none')
plt.show()

So np.meshgrid is just a convenience. In principle the same could be done by:

z2 = sinus2d(np.linspace(0,2*np.pi,100)[:,None], np.linspace(0,2*np.pi,100)[None,:])

but there you need to be aware of your dimensions (suppose you have more than two ...) and the right broadcasting. np.meshgrid does all of this for you.

Also meshgrid allows you to delete coordinates together with the data if you, for example, want to do an interpolation but exclude certain values:

condition = z>0.6
z_new = z[condition] # This will make your array 1D

so how would you do the interpolation now? You can give x and y to an interpolation function like scipy.interpolate.interp2d so you need a way to know which coordinates were deleted:

x_new = xx[condition]
y_new = yy[condition]

and then you can still interpolate with the "right" coordinates (try it without the meshgrid and you will have a lot of extra code):

from scipy.interpolate import interp2d
interpolated = interp2d(x_new, y_new, z_new)

and the original meshgrid allows you to get the interpolation on the original grid again:

interpolated_grid = interpolated(xx[0], yy[:, 0]).reshape(xx.shape)

These are just some examples where I used the meshgrid there might be a lot more.

There are 3 levels of git config; project, global and system.

• project: Project configs are only available for the current project and stored in .git/config in the project's directory.
• global: Global configs are available for all projects for the current user and stored in ~/.gitconfig.
• system: System configs are available for all the users/projects and stored in /etc/gitconfig.

Create a project specific config, you have to execute this under the project's directory:

$ git config user.name "John Doe" 

Create a global config:

$ git config --global user.name "John Doe"

Create a system config:

$ git config --system user.name "John Doe" 

And as you may guess, project overrides global and global overrides system.

Note: Project configs are local to just one particular copy/clone of this particular repo, and need to be reapplied if the repo is recloned clean from the remote. It changes a local file that is not sent to the remote with a commit/push.

You need to use a ServerSocket. You can find an explanation here.

There are some workarounds to make it possible:

1. Recreating the whole table

2. Create new columns within the current table

3. Create a view

https://tableplus.com/blog/2018/09/postgresql-is-it-possible-to-alter-column-order-position-in-a-table.html

mysqladmin create DB_name -u DB_user --password=DB_pass && \
        mysqldump -u DB_user --password=DB_pass DB_name | \
        mysql     -u DB_user --password=DB_pass -h DB_host DB_name

I have solved the problem the easy way. My oracle was running just fine in the past. After I installed MS SQL Server was when I noticed this problem. I just uninstalled MS SQL Server on my machine then the problem was gone. Make sure you restart your computer after that. Now I can connect to Oracle database through SQLPlus again. My guess is that there's some conflict between the two. Hope this helps.

First, you have two variables of the same name i. This calls for confusion.

Second, you should declare a variable called sum, which is initially zero. Then, in a loop, you should add to it the numbers from 1 upto and including positiveInteger. After that, you should output the sum.

fun rotateArrow(view: View): Boolean {
    return if (view.rotation == 0F) {
        view.animate().setDuration(200).rotation(180F)
        true
    } else {
         view.animate().setDuration(200).rotation(0F)
         false
    }
}

It's almost become a trend now to have a Conv2D followed by a ReLu followed by a BatchNormalization layer. So I made up a small function to call all of them at once. Makes the model definition look a whole lot cleaner and easier to read.

def Conv2DReluBatchNorm(n_filter, w_filter, h_filter, inputs):
    return BatchNormalization()(Activation(activation='relu')(Convolution2D(n_filter, w_filter, h_filter, border_mode='same')(inputs)))

My solution, in case someone finds it useful.

In Web.config:

<system.web>
    <customErrors mode="On" defaultRedirect="Error" >
      <error statusCode="404" redirect="~/Error/PageNotFound"/>
    </customErrors>
    ...
</system.web>

In Controllers/ErrorController.cs:

public class ErrorController : Controller
{
    public ActionResult PageNotFound()
    {
        if(Request.IsAjaxRequest()) {
            Response.StatusCode = (int)HttpStatusCode.NotFound;
            return Content("Not Found", "text/plain");
        }

        return View();
    }
}

Add a PageNotFound.cshtml in the Shared folder, and that's it.

Despite !important usage being generally frowned upon, this is the offending code in bootstrap.css which prevents table rows from being printed with background-color.

.table td,
.table th {
    background-color: #fff !important;
}

Let's assume you are trying to style the following HTML:

<table class="table">
    <tr class="highlighted">
      <td>Name</td>
      <td>School</td>
      <td>Height</td>
      <td>Weight</td>
    </tr>
</table>

To override this CSS, place the following (more specific) rule in your stylesheet:

@media print {
    table tr.highlighted > td {
        background-color: rgba(247, 202, 24, 0.3) !important;
    }
}

This works because the rule is more specific than the bootstrap default.

I can highly recommend Squirrel SQL.

Also see this similar question:

Developer tools to directly access databases

if($var !== '' && $var !== NULL)
{
   echo $var;
}

This alternative also provides a back function.

The template:

<a ng-click='back()'>Back</a>

The module:

myModule.run(function ($rootScope, $location) {

    var history = [];

    $rootScope.$on('$routeChangeSuccess', function() {
        history.push($location.$$path);
    });

    $rootScope.back = function () {
        var prevUrl = history.length > 1 ? history.splice(-2)[0] : "/";
        $location.path(prevUrl);
    };

});

Fragment class A

public class CountryListFragment extends ListFragment{

    /** List of countries to be displayed in the ListFragment */

    ListFragmentItemClickListener ifaceItemClickListener;   

    /** An interface for defining the callback method */
    public interface ListFragmentItemClickListener {
    /** This method will be invoked when an item in the ListFragment is clicked */
    void onListFragmentItemClick(int position);
}   

/** A callback function, executed when this fragment is attached to an activity */  
@Override
public void onAttach(Activity activity) {
    super.onAttach(activity);

    try{
        /** This statement ensures that the hosting activity implements ListFragmentItemClickListener */
        ifaceItemClickListener = (ListFragmentItemClickListener) activity;          
    }catch(Exception e){
        Toast.makeText(activity.getBaseContext(), "Exception",Toast.LENGTH_SHORT).show();
    }
}

Fragment Class B

public class CountryDetailsFragment extends Fragment {
@Override
public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {

    /** Inflating the layout country_details_fragment_layout to the view object v */
    View v = inflater.inflate(R.layout.country_details_fragment_layout, null);

    /** Getting the textview object of the layout to set the details */ 
    TextView tv = (TextView) v.findViewById(R.id.country_details);      

    /** Getting the bundle object passed from MainActivity ( in Landscape   mode )  or from 
     *  CountryDetailsActivity ( in Portrait Mode )  
     * */
    Bundle b = getArguments();

    /** Getting the clicked item's position and setting corresponding  details in the textview of the detailed fragment */
    tv.setText("Details of " + Country.name[b.getInt("position")]);     

    return v;
    }

}

Main Activity class for passing data between fragments

public class MainActivity extends Activity implements ListFragmentItemClickListener {
/** Called when the activity is first created. */
@Override
public void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.main);
}


/** This method will be executed when the user clicks on an item in the listview */
@Override
public void onListFragmentItemClick(int position) {

    /** Getting the orientation ( Landscape or Portrait ) of the screen */
    int orientation = getResources().getConfiguration().orientation;


    /** Landscape Mode */
    if(orientation == Configuration.ORIENTATION_LANDSCAPE ){
        /** Getting the fragment manager for fragment related operations */
        FragmentManager fragmentManager = getFragmentManager();

        /** Getting the fragmenttransaction object, which can be used to add, remove or replace a fragment */
        FragmentTransaction fragmentTransaction = fragmentManager.beginTransaction();

        /** Getting the existing detailed fragment object, if it already exists. 
         *  The fragment object is retrieved by its tag name  *
         */
Fragment prevFrag = fragmentManager.findFragmentByTag("in.wptrafficanalyzer.country.details");

        /** Remove the existing detailed fragment object if it exists */
        if(prevFrag!=null)
    fragmentTransaction.remove(prevFrag);           

        /** Instantiating the fragment CountryDetailsFragment */
  CountryDetailsFragment fragment = new CountryDetailsFragment();

        /** Creating a bundle object to pass the data(the clicked item's   position) from the activity to the fragment */ 
        Bundle b = new Bundle();

        /** Setting the data to the bundle object */
        b.putInt("position", position);

        /** Setting the bundle object to the fragment */
        fragment.setArguments(b);           

        /** Adding the fragment to the fragment transaction */
        fragmentTransaction.add(R.id.detail_fragment_container,   fragment,"in.wptrafficanalyzer.country.details");

        /** Adding this transaction to backstack */
        fragmentTransaction.addToBackStack(null);

        /** Making this transaction in effect */
        fragmentTransaction.commit();

    }else{          /** Portrait Mode or Square mode */
        /** Creating an intent object to start the CountryDetailsActivity */
        Intent intent = new Intent("in.wptrafficanalyzer.CountryDetailsActivity");

        /** Setting data ( the clicked item's position ) to this intent */
        intent.putExtra("position", position);

        /** Starting the activity by passing the implicit intent */
        startActivity(intent);          
      }
    }
 }

Detailde acitivity class

public class CountryDetailsActivity extends Activity{
@Override
protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);

    /** Setting the layout for this activity */
    setContentView(R.layout.country_details_activity_layout);

    /** Getting the fragment manager for fragment related operations */
    FragmentManager fragmentManager = getFragmentManager();

    /** Getting the fragmenttransaction object, which can be used to add, remove or replace a fragment */
    FragmentTransaction fragmentTransacton = fragmentManager.beginTransaction();

    /** Instantiating the fragment CountryDetailsFragment */
    CountryDetailsFragment detailsFragment = new CountryDetailsFragment();

    /** Creating a bundle object to pass the data(the clicked item's position) from the activity to the fragment */
    Bundle b = new Bundle();

    /** Setting the data to the bundle object from the Intent*/
    b.putInt("position", getIntent().getIntExtra("position", 0));

    /** Setting the bundle object to the fragment */
    detailsFragment.setArguments(b);

    /** Adding the fragment to the fragment transaction */
    fragmentTransacton.add(R.id.country_details_fragment_container, detailsFragment);       

    /** Making this transaction in effect */
    fragmentTransacton.commit();

    }
}

Array Of Contries

public class Country {

/** Array of countries used to display in CountryListFragment */
static String name[] = new String[] {
        "India",
        "Pakistan",
        "Sri Lanka",
        "China",
        "Bangladesh",
        "Nepal",
        "Afghanistan",
        "North Korea",
        "South Korea",
        "Japan",
        "Bhutan"
};
}

For More Details visit this link [http://wptrafficanalyzer.in/blog/itemclick-handler-for-listfragment-in-android/]. There are full example ..

The backgroundTint attribute will help you to add a tint(shade) to the background. You can provide a color value for the same in the form of - "#rgb", "#argb", "#rrggbb", or "#aarrggbb".

The backgroundTintMode on the other hand will help you to apply the background tint. It must have constant values like src_over, src_in, src_atop, etc.

Refer this to get a clear idea of the the constant values that can be used. Search for the backgroundTint attribute and the description along with various attributes will be available.

Anyone using ButterKnife. You can use like:

@OnTextChanged(R.id.zip_code)
void onZipCodeTextChanged(CharSequence zipCode, int start, int count, int after) {

}

You could also:

newlist += mylist[i:i+22]

It took me a bit to figure this out, but the answer is to not use a card-deck, but instead to use .row and .cols.

This makes a responsive set of cards with specifics for each screen size: 3 cards for xl, 2 for lg and md, and 1 for sm and xs. .my-3 puts a padding on top and bottom so they look nice.

mixin postList(stuff)
  .row
    - site.posts.each(function(post, index){
      .col-sm-12.col-md-6.col-lg-6.col-xl-4
        .card.my-3
          img.card-img-top(src="...",  alt="Card image cap")
          .card-body
            h5.card-title Card title #{index}
            p.card-text Some quick example text to build on the card title and make up the bulk of the cards content.
            a.btn.btn-primary(href="#") Go somewhere
    - })

Assume that the content of YourClass.py is:

class YourClass:
    # ......

If you use:

from YourClassParentDir import YourClass  # means YourClass.py

In this way, I got TypeError: 'module' object is not callable if you then tried to use YourClass().

But, if you use:

from YourClassParentDir.YourClass import YourClass   # means Class YourClass

or use YourClass.YourClass(), it works for me.

Some of the other answers here inspired me to write a script for automating the mixed sequential execution of SQL tasks using SQLPLUS along with shell commands for a project, a process that was previously manually done. Maybe this (highly sanitized) example will be useful to someone else:

#!/bin/bash
acreds="user_a/supergreatpassword"
bcreds="user_b/anothergreatpassword"
hoststring='fancyoraclehoststring'

runsql () {
  # param 1 is $1
sqlplus -S /nolog << EOF
CONNECT $1@$hoststring;
whenever sqlerror exit sql.sqlcode;
set echo off
set heading off
$2
exit;
EOF
}

echo "TS::$(date): Starting SCHEM_A.PROC_YOU_NEED()..."
runsql "$acreds" "execute SCHEM_A.PROC_YOU_NEED();"

echo "TS::$(date): Starting superusefuljob..."
/var/scripts/superusefuljob.sh

echo "TS::$(date): Starting SCHEM_B.SECRET_B_PROC()..."
runsql "$bcreds" "execute SCHEM_B.SECRET_B_PROC();"

echo "TS::$(date): DONE"

runsql allows you to pass a credential string as the first argument, and any SQL you need as the second argument. The variables containing the credentials are included for illustration, but for security I actually source them from another file. If you wanted to handle multiple database connections, you could easily modify the function to accept the hoststring as an additional parameter.

SELECT CURRENT_USER usr, :'HOST' host, inet_server_port() port;

This uses psql's built in HOST variable, documented here

And postgres System Information Functions, documented here

You describe a multimap.

You can make the value a List object, to store more than one value (>2 for extensibility).

Override the dictionary object.

The files managed by git are shown by git ls-files. Check out its manual page.

You are using improper syntax. If you read the docs mysqli_query() you will find that it needs two parameter.

mixed mysqli_query ( mysqli $link , string $query [, int $resultmode = MYSQLI_STORE_RESULT ] )

mysql $link generally means, the resource object of the established mysqli connection to query the database.

So there are two ways of solving this problem

mysqli_query();

$myConnection= mysqli_connect("$db_host","$db_username","$db_pass", "mrmagicadam") or die ("could not connect to mysql"); 
$sqlCommand="SELECT id, linklabel FROM pages ORDER BY pageorder ASC";
$query=mysqli_query($myConnection, $sqlCommand) or die(mysqli_error($myConnection));

Or, Using mysql_query() (This is now obselete)

$myConnection= mysql_connect("$db_host","$db_username","$db_pass") or die ("could not connect to mysql");
mysql_select_db("mrmagicadam") or die ("no database");        
$sqlCommand="SELECT id, linklabel FROM pages ORDER BY pageorder ASC";
$query=mysql_query($sqlCommand) or die(mysql_error());

As pointed out in the comments, be aware of using die to just get the error. It might inadvertently give the viewer some sensitive information .

In my case (Oracle), it's WHERE REGEXP_LIKE(column, 'regex.*'). See here:

SQL Function

Description

---

REGEXP_LIKE

This function searches a character column for a pattern. Use this function in the WHERE clause of a query to return rows matching the regular expression you specify.

...

REGEXP_REPLACE

This function searches for a pattern in a character column and replaces each occurrence of that pattern with the pattern you specify.

...

REGEXP_INSTR

This function searches a string for a given occurrence of a regular expression pattern. You specify which occurrence you want to find and the start position to search from. This function returns an integer indicating the position in the string where the match is found.

...

REGEXP_SUBSTR

This function returns the actual substring matching the regular expression pattern you specify.

(Of course, REGEXP_LIKE only matches queries containing the search string, so if you want a complete match, you'll have to use '^$' for a beginning (^) and end ($) match, e.g.: '^regex.*$'.)

 img {
     display: block;
     margin-left: auto;
   }

Try this:

$(document).ready(function(){
    $("#showSimpleModal").click(function() {
        $("div#simpleModal").addClass("show");
        $("#videoContainer")[0].play();
        return false;   
    });

    $("#closeSimple").click(function() {
        $("div#simpleModal").removeClass("show");
        $("#videoContainer")[0].pause();
        return false;                   
    });
});

add this to your div

white-space: nowrap;

http://jsfiddle.net/NXchy/1/

 <HTML>
      <HEAD>
        <TITLE>Sum</TITLE>

        <script type="text/javascript">
          function sum()
          {

             var num1 = document.myform.number1.value;
             var num2 = document.myform.number2.value;
             var sum = parseInt(num1) + parseInt(num2);
             document.getElementById('add').value = sum;
          }
        </script>
      </HEAD>

      <BODY>
        <FORM NAME="myform">
          <INPUT TYPE="text" NAME="number1" VALUE=""/> + 
          <INPUT TYPE="text" NAME="number2" VALUE=""/>
          <INPUT TYPE="button" NAME="button" Value="=" onClick="sum()"/>
          <INPUT TYPE="text" ID="add" NAME="result" VALUE=""/>
        </FORM>

      </BODY>
</HTML>

This should work properly. 1. use .value instead of "innerHTML" when setting the 3rd field (input field) 2. Close the input tags

it's easy to use:

frame.setResizable(false);

function GetOrder(status, filter) {
    var isValid = true; //isValidGuid(customerId);
    if (isValid) {
        var refundhtmlstr = '';
        //varsURL = ApiPath + '/api/Orders/Customer/' + customerId + '?status=' + status + '&filter=' + filter;
        varsURL = ApiPath + '/api/Orders/Customer?status=' + status + '&filter=' + filter;
        $.ajax({
            type: "GET",
            //url: ApiPath + '/api/Orders/Customer/' + customerId + '?status=' + status + '&filter=' + filter,
            url: ApiPath + '/api/Orders/Customer?status=' + status + '&filter=' + filter,
            dataType: "json",
            crossDomain: true,
            xhrFields: {
                withCredentials: true
            },
            success: function (data) {
                var htmlStr = '';
                if (data == null || data.Count === 0) {
                    htmlStr = '<div class="card"><div class="card-header">Bu kriterlere uygun siparis bulunamadi.</div></div>';
                }
                else {
                    $('#ReturnPolicyBtnUrl').attr('href', data.ReturnPolicyBtnUrl);
                    var groupedData = data.OrderDto.sort(function (x, y) {
                        return new Date(y.OrderDate) - new Date(x.OrderDate);
                    });
                    groupedData = _.groupBy(data.OrderDto, function (d) { return toMonthStr(d.OrderDate) });
                    localStorage['orderData'] = JSON.stringify(data.OrderDto);

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

                        var sortedData = groupedData[key].sort(function (x, y) {
                            return new Date(y.OrderDate) - new Date(x.OrderDate);
                        });
                        htmlStr += '<div class="card-header">' + key + '</div>';
                        $.each(sortedData, function (keyitem, valitem) {
                            //Date Convertions
                            if (valitem.StatusDesc != null) {
                                valitem.StatusDesc = valitem.StatusDesc;
                            }

                            var date = valitem.OrderDate;
                            date = date.substring(0, 10).split('-');
                            date = date[2] + '.' + date[1] + '.' + date[0];
                            htmlStr += '<div class="col-lg-12 col-md-12 col-xs-12 col-sm-12 card-item clearfix ">' +
                        //'<div class="card-item-head"><span class="order-head">Siparis No: <a href="ViewOrderDetails.html?CustomerId=' + customerId + '&OrderNo=' + valitem.OrderNumber + '" >' + valitem.OrderNumber + '</a></span><span class="order-date">' + date + '</span></div>' +
                        '<div class="card-item-head"><span class="order-head">Siparis No: <a href="ViewOrderDetails.html?OrderNo=' + valitem.OrderNumber + '" >' + valitem.OrderNumber + '</a></span><span class="order-date">' + date + '</span></div>' +
                        '<div class="card-item-head-desc">' + valitem.StatusDesc + '</div>' +
                        '<div class="card-item-body">' +
                            '<div class="slider responsive">';
                            var i = 0;
                            $.each(valitem.ItemList, function (keylineitem, vallineitem) {
                                var imageUrl = vallineitem.ProductImageUrl.replace('{size}', 200);
                                htmlStr += '<div><img src="' + imageUrl + '" alt="' + vallineitem.ProductName + '"><span class="img-desc">' + ProductNameStr(vallineitem.ProductName) + '</span></div>';
                                i++;
                            });
                            htmlStr += '</div>' +
                        '</div>' +
                    '</div>';
                        });
                    });

                    $.each(data.OrderDto, function (key, value) {
                        if (value.IsSAPMigrationflag === true) {
                            refundhtmlstr = '<div class="notify-reason"><span class="note"><B>Notification : </B> Geçmis siparisleriniz yükleniyor.  Lütfen kisa bir süre sonra tekrar kontrol ediniz. Tesekkürler. </span></div>';
                        }
                    });
                }
                $('#orders').html(htmlStr);
                $("#notification").html(refundhtmlstr);
                ApplySlide();
            },
            error: function () {
                console.log("System Failure");
            }
        });
    }
}

Web.config

Include UI origin and set Allow Crentials to true

<httpProtocol>
      <customHeaders>
        <add name="Access-Control-Allow-Origin" value="http://burada.com" />
        <add name="Access-Control-Allow-Headers" value="Content-Type" />
        <add name="Access-Control-Allow-Methods" value="GET, POST, PUT, DELETE, OPTIONS" />
        <add name="Access-Control-Allow-Credentials" value="true" />
      </customHeaders>
    </httpProtocol>

In addition to the simple print answer, you can actually customise the print output through the use of the numpy.set_printoptions function.

Prerequisites:

>>> import numpy as np
>>> inf = np.float('inf')
>>> A = np.array([[0,1,4,inf,3],[1,0,2,inf,4],[4,2,0,1,5],[inf,inf,1,0,3],[3,4,5,3,0]])

The following option:

>>> np.set_printoptions(infstr="(infinity)")

Results in:

>>> print(A)
[[        0.         1.         4. (infinity)         3.]
 [        1.         0.         2. (infinity)         4.]
 [        4.         2.         0.         1.         5.]
 [(infinity) (infinity)         1.         0.         3.]
 [        3.         4.         5.         3.         0.]]

The following option:

>>> np.set_printoptions(formatter={'float': "\t{: 0.0f}\t".format})

Results in:

>>> print(A)
[[   0       1       4       inf     3  ]
 [   1       0       2       inf     4  ]
 [   4       2       0       1       5  ]
 [   inf     inf     1       0       3  ]
 [   3       4       5       3       0  ]]

If you just want to have a specific string output for a specific array, the function numpy.array2string is also available.

check this one out.

<input type="text" name="firstname">
<input type="text" name="lastname">
<input type="text" name="email">
<input type="text" name="address">

<input type="text" name="tree[tree1][fruit]">
<input type="text" name="tree[tree1][height]">

<input type="text" name="tree[tree2][fruit]">
<input type="text" name="tree[tree2][height]">

<input type="text" name="tree[tree3][fruit]">
<input type="text" name="tree[tree3][height]">

it should end up like this in the $_POST[] array (PHP format for easy visualization)

$_POST[] = array(
    'firstname'=>'value',
    'lastname'=>'value',
    'email'=>'value',
    'address'=>'value',
    'tree' => array(
        'tree1'=>array(
            'fruit'=>'value',
            'height'=>'value'
        ),
        'tree2'=>array(
            'fruit'=>'value',
            'height'=>'value'
        ),
        'tree3'=>array(
            'fruit'=>'value',
            'height'=>'value'
        )
    )
)

The easiest way is to invert the value of the keys and use heapq. For example, turn 1000.0 into -1000.0 and 5.0 into -5.0.

In a nutshell answer.

• origin: the fork
• upstream: the forked

Meaning the 2nd parameter('master') of the "git push" command -

$ git push origin master

can be made clear by initiating "push" command from 'news-item' branch. It caused local "master" branch to be pushed to the remote 'master' branch. For more information refer

https://git-scm.com/docs/git-push

where <refspec> in

[<repository> [<refspec>…?]

is written to mean "specify what destination ref to update with what source object."

For your reference, here is a screen capture how I verified this statement.

I don't know since which version it change but the 1.11.2 has an option in View tab which can change the left bar to the right and vice versa

A couple of scenarios might help illustrate the purpose of access and refresh tokens and the engineering trade-offs in designing an oauth2 (or any other auth) system:

Web app scenario

In the web app scenario you have a couple of options:

1. if you have your own session management, store both the access_token and refresh_token against your session id in session state on your session state service. When a page is requested by the user that requires you to access the resource use the access_token and if the access_token has expired use the refresh_token to get the new one.

Let's imagine that someone manages to hijack your session. The only thing that is possible is to request your pages.

2. if you don't have session management, put the access_token in a cookie and use that as a session. Then, whenever the user requests pages from your web server send up the access_token. Your app server could refresh the access_token if need be.

Comparing 1 and 2:

In 1, access_token and refresh_token only travel over the wire on the way between the authorzation server (google in your case) and your app server. This would be done on a secure channel. A hacker could hijack the session but they would only be able to interact with your web app. In 2, the hacker could take the access_token away and form their own requests to the resources that the user has granted access to. Even if the hacker gets a hold of the access_token they will only have a short window in which they can access the resources.

Either way the refresh_token and clientid/secret are only known to the server making it impossible from the web browser to obtain long term access.

Let's imagine you are implementing oauth2 and set a long timeout on the access token:

In 1) There's not much difference here between a short and long access token since it's hidden in the app server. In 2) someone could get the access_token in the browser and then use it to directly access the user's resources for a long time.

Mobile scenario

On the mobile, there are a couple of scenarios that I know of:

1. Store clientid/secret on the device and have the device orchestrate obtaining access to the user's resources.

2. Use a backend app server to hold the clientid/secret and have it do the orchestration. Use the access_token as a kind of session key and pass it between the client and the app server.

Comparing 1 and 2

In 1) Once you have clientid/secret on the device they aren't secret any more. Anyone can decompile and then start acting as though they are you, with the permission of the user of course. The access_token and refresh_token are also in memory and could be accessed on a compromised device which means someone could act as your app without the user giving their credentials. In this scenario the length of the access_token makes no difference to the hackability since refresh_token is in the same place as access_token. In 2) the clientid/secret nor the refresh token are compromised. Here the length of the access_token expiry determines how long a hacker could access the users resources, should they get hold of it.

Expiry lengths

Here it depends upon what you're securing with your auth system as to how long your access_token expiry should be. If it's something particularly valuable to the user it should be short. Something less valuable, it can be longer.

Some people like google don't expire the refresh_token. Some like stackflow do. The decision on the expiry is a trade-off between user ease and security. The length of the refresh token is related to the user return length, i.e. set the refresh to how often the user returns to your app. If the refresh token doesn't expire the only way they are revoked is with an explicit revoke. Normally, a log on wouldn't revoke.

Hope that rather length post is useful.

I just ran into a error that took me forever to figure out and potentially can give you a good example of float precision.

#include <iostream>
#include <iomanip>

int main(){
  for(float t=0;t<1;t+=0.01){
     std::cout << std::fixed << std::setprecision(6) << t << std::endl;
  }
}

The output is

0.000000
0.010000
0.020000
0.030000
0.040000
0.050000
0.060000
0.070000
0.080000
0.090000
0.100000
0.110000
0.120000
0.130000
0.140000
0.150000
0.160000
0.170000
0.180000
0.190000
0.200000
0.210000
0.220000
0.230000
0.240000
0.250000
0.260000
0.270000
0.280000
0.290000
0.300000
0.310000
0.320000
0.330000
0.340000
0.350000
0.360000
0.370000
0.380000
0.390000
0.400000
0.410000
0.420000
0.430000
0.440000
0.450000
0.460000
0.470000
0.480000
0.490000
0.500000
0.510000
0.520000
0.530000
0.540000
0.550000
0.560000
0.570000
0.580000
0.590000
0.600000
0.610000
0.620000
0.630000
0.640000
0.650000
0.660000
0.670000
0.680000
0.690000
0.700000
0.710000
0.720000
0.730000
0.740000
0.750000
0.760000
0.770000
0.780000
0.790000
0.800000
0.810000
0.820000
0.830000
0.839999
0.849999
0.859999
0.869999
0.879999
0.889999
0.899999
0.909999
0.919999
0.929999
0.939999
0.949999
0.959999
0.969999
0.979999
0.989999
0.999999

As you can see after 0.83, the precision runs down significantly.

However, if I set up t as double, such an issue won't happen.

It took me five hours to realize this minor error, which ruined my program.

As part of your jvm arguments you can set -Dlog4j.configuration=file:"<FILE_PATH>". Where FILE_PATH is the path of your log4j.properties file.

Please note that as of log4j2, the new system variable to use is log4j.configurationFile and you put in the actual path to the file (i.e. without the file: prefix) and it will automatically load the factory based on the extension of the configuration file:

-Dlog4j.configurationFile=/path/to/log4jconfig.{ext}

As Sayse mentioned, exit code 259 (0x103) has special meaning, in this case the process being debugged is still running.

I saw this a lot with debugging web services, because the thread continues to run after executing each web service call (as it is still listening for further calls).

From the source code you will be able to view that, ExpectedConditions.elementToBeClickable(), it will judge the element visible and enabled, so you can use isEnabled() together with isDisplayed(). Following is the source code.

public static ExpectedCondition<WebElement> elementToBeClickable(final WebElement element) {_x000D_
  return new ExpectedCondition() {_x000D_
   public WebElement apply(WebDriver driver) {_x000D_
    WebElement visibleElement = (WebElement) ExpectedConditions.visibilityOf(element).apply(driver);_x000D_
_x000D_
    try {_x000D_
     return visibleElement != null && visibleElement.isEnabled() ? visibleElement : null;_x000D_
    } catch (StaleElementReferenceException arg3) {_x000D_
     return null;_x000D_
    }_x000D_
   }_x000D_
_x000D_
   public String toString() {_x000D_
    return "element to be clickable: " + element;_x000D_
   }_x000D_
  };_x000D_
 }

Open Android Studio -> Open Manifest File

add <uses-sdk tools:overrideLibrary="android.support.v17.leanback"/> don't forget to include xmlns:tools="http://schemas.android.com/tools" too, before the <application> tag

I want to mention one important note regarding req.query , because currently I am working on pagination functionality based on req.query and I have one interesting example to demonstrate to you...

Example:

// Fetching patients from the database
exports.getPatients = (req, res, next) => {

const pageSize = +req.query.pageSize;
const currentPage = +req.query.currentPage;

const patientQuery = Patient.find();
let fetchedPatients;

// If pageSize and currentPage are not undefined (if they are both set and contain valid values)
if(pageSize && currentPage) {
    /**
     * Construct two different queries 
     * - Fetch all patients 
     * - Adjusted one to only fetch a selected slice of patients for a given page
     */
    patientQuery
        /**
         * This means I will not retrieve all patients I find, but I will skip the first "n" patients
         * For example, if I am on page 2, then I want to skip all patients that were displayed on page 1,
         * 
         * Another example: if I am displaying 7 patients per page , I want to skip 7 items because I am on page 2,
         * so I want to skip (7 * (2 - 1)) => 7 items
         */
        .skip(pageSize * (currentPage - 1))

        /**
         * Narrow dont the amound documents I retreive for the current page
         * Limits the amount of returned documents
         * 
         * For example: If I got 7 items per page, then I want to limit the query to only
         * return 7 items. 
         */
        .limit(pageSize);
}
patientQuery.then(documents => {
    res.status(200).json({
        message: 'Patients fetched successfully',
        patients: documents
    });
  });
};

You will noticed + sign in front of req.query.pageSize and req.query.currentPage

Why? If you delete + in this case, you will get an error, and that error will be thrown because we will use invalid type (with error message 'limit' field must be numeric).

Important: By default if you extracting something from these query parameters, it will always be a string, because it's coming the URL and it's treated as a text.

If we need to work with numbers, and convert query statements from text to number, we can simply add a plus sign in front of statement.

Updated Answer

If a programmer is interested in only parsing a table from a webpage, they can utilize the pandas method pandas.read_html.

Let's say we want to extract the GDP data table from the website: https://worldpopulationreview.com/countries/countries-by-gdp/#worldCountries

Then following codes does the job perfectly (No need of beautifulsoup and fancy html):

import pandas as pd
import requests

url = "https://worldpopulationreview.com/countries/countries-by-gdp/#worldCountries"

r = requests.get(url)
df_list = pd.read_html(r.text) # this parses all the tables in webpages to a list
df = df_list[0]
df.head()

Output

Once you have selected the highest value, which is "12" in my example, you can then declare it as integer and increment your value:

$FileList = "1", "2", "11"
$foldername = [int]$FileList[2] + 1
$foldername

The problem is insufficient memory to load context.

Try to set VM options:

-da -Xmx2048m -Xms1024m -XX:MaxPermSize=2048m

In case you want to write fallback code, decoding from base64 has been present in iOS since the very beginning by caveat of NSURL:

NSURL *URL = [NSURL URLWithString:
      [NSString stringWithFormat:@"data:application/octet-stream;base64,%@",
           base64String]];

return [NSData dataWithContentsOfURL:URL];

You could use ES6 Map

const colors = new Map([
  ['RED', 'red'],
  ['BLUE', 'blue'],
  ['GREEN', 'green']
]);

console.log(colors.get('RED'));

I had similar issue before and in my case the file was in another machine so i have mapped network drive z to the folder location where my file is then i created a context in tomcat so in my web project i could access the HTML file via context

After PushAsync use PopAsync (with this) to remove current page.

await Navigation.PushAsync(new YourSecondPage());
this.Navigation.PopAsync(this);

To increase the heap size you can use the -Xmx argument when starting Java; e.g.

-Xmx256M

This is my code:

IQueryable<AuctionRecord> records = db.AuctionRecord;
var count = records.Count();

Make sure the variable is defined as IQueryable then when you use Count() method, EF will execute something like

select count(*) from ...

Otherwise, if the records is defined as IEnumerable, the sql generated will query the entire table and count rows returned.

Or you can use this function:

DELIMITER $$

CREATE FUNCTION BLOB2TXT (blobfield VARCHAR(255)) RETURNS longtext
DETERMINISTIC
NO SQL
BEGIN
       RETURN CAST(blobfield AS CHAR(10000) CHARACTER SET utf8);
END
$$


DELIMITER ;

When accessing the field value, pass the instance rather than null.

Why not use code generation here? Eclipse, for example, will generate a reasoble toString implementation for you.

No, it's not possible.

It's really, if not use native selects, if you create custom select widget from html elements, t.e. "li".

Another great Treeview jquery plugin is http://www.jstree.com/

For an advance view you should check jquery-treetable
http://ludo.cubicphuse.nl/jquery-plugins/treeTable/doc/

this is the source code about wraps:

WRAPPER_ASSIGNMENTS = ('__module__', '__name__', '__doc__')

WRAPPER_UPDATES = ('__dict__',)

def update_wrapper(wrapper,
                   wrapped,
                   assigned = WRAPPER_ASSIGNMENTS,
                   updated = WRAPPER_UPDATES):

    """Update a wrapper function to look like the wrapped function

       wrapper is the function to be updated
       wrapped is the original function
       assigned is a tuple naming the attributes assigned directly
       from the wrapped function to the wrapper function (defaults to
       functools.WRAPPER_ASSIGNMENTS)
       updated is a tuple naming the attributes of the wrapper that
       are updated with the corresponding attribute from the wrapped
       function (defaults to functools.WRAPPER_UPDATES)
    """
    for attr in assigned:
        setattr(wrapper, attr, getattr(wrapped, attr))
    for attr in updated:
        getattr(wrapper, attr).update(getattr(wrapped, attr, {}))
    # Return the wrapper so this can be used as a decorator via partial()
    return wrapper

def wraps(wrapped,
          assigned = WRAPPER_ASSIGNMENTS,
          updated = WRAPPER_UPDATES):
    """Decorator factory to apply update_wrapper() to a wrapper function

   Returns a decorator that invokes update_wrapper() with the decorated
   function as the wrapper argument and the arguments to wraps() as the
   remaining arguments. Default arguments are as for update_wrapper().
   This is a convenience function to simplify applying partial() to
   update_wrapper().
    """
    return partial(update_wrapper, wrapped=wrapped,
                   assigned=assigned, updated=updated)

MySQL's utf8 permits only the Unicode characters that can be represented with 3 bytes in UTF-8. Here you have a character that needs 4 bytes: \xF0\x90\x8D\x83 (U+10343 GOTHIC LETTER SAUIL).

If you have MySQL 5.5 or later you can change the column encoding from utf8 to utf8mb4. This encoding allows storage of characters that occupy 4 bytes in UTF-8.

You may also have to set the server property character_set_server to utf8mb4 in the MySQL configuration file. It seems that Connector/J defaults to 3-byte Unicode otherwise:

For example, to use 4-byte UTF-8 character sets with Connector/J, configure the MySQL server with character_set_server=utf8mb4, and leave characterEncoding out of the Connector/J connection string. Connector/J will then autodetect the UTF-8 setting.

A quick way to do this using VISUAL MODE uses the same process as commenting a block of code.

This is useful if you would prefer not to change your shiftwidth or use any set directives and is flexible enough to work with TABS or SPACES or any other character.

1. Position cursor at the beginning on the block
2. v to switch to -- VISUAL MODE --
3. Select the text to be indented
4. Type : to switch to the prompt

5. Replacing with 3 leading spaces:

   :'<,'>s/^/ /g

6. Or replacing with leading tabs:

   :'<,'>s/^/\t/g

7. Brief Explanation:

   '<,'> - Within the Visually Selected Range

   s/^/ /g - Insert 3 spaces at the beginning of every line within the whole range

   (or)

   s/^/\t/g - Insert Tab at the beginning of every line within the whole range

I've published a Python [3] tree implementation on my site: http://www.quesucede.com/page/show/id/python_3_tree_implementation.

Hope it is of use,

Ok, here's the code:

import uuid

def sanitize_id(id):
    return id.strip().replace(" ", "")

(_ADD, _DELETE, _INSERT) = range(3)
(_ROOT, _DEPTH, _WIDTH) = range(3)

class Node:

    def __init__(self, name, identifier=None, expanded=True):
        self.__identifier = (str(uuid.uuid1()) if identifier is None else
                sanitize_id(str(identifier)))
        self.name = name
        self.expanded = expanded
        self.__bpointer = None
        self.__fpointer = []

    @property
    def identifier(self):
        return self.__identifier

    @property
    def bpointer(self):
        return self.__bpointer

    @bpointer.setter
    def bpointer(self, value):
        if value is not None:
            self.__bpointer = sanitize_id(value)

    @property
    def fpointer(self):
        return self.__fpointer

    def update_fpointer(self, identifier, mode=_ADD):
        if mode is _ADD:
            self.__fpointer.append(sanitize_id(identifier))
        elif mode is _DELETE:
            self.__fpointer.remove(sanitize_id(identifier))
        elif mode is _INSERT:
            self.__fpointer = [sanitize_id(identifier)]

class Tree:

    def __init__(self):
        self.nodes = []

    def get_index(self, position):
        for index, node in enumerate(self.nodes):
            if node.identifier == position:
                break
        return index

    def create_node(self, name, identifier=None, parent=None):

        node = Node(name, identifier)
        self.nodes.append(node)
        self.__update_fpointer(parent, node.identifier, _ADD)
        node.bpointer = parent
        return node

    def show(self, position, level=_ROOT):
        queue = self[position].fpointer
        if level == _ROOT:
            print("{0} [{1}]".format(self[position].name, self[position].identifier))
        else:
            print("\t"*level, "{0} [{1}]".format(self[position].name, self[position].identifier))
        if self[position].expanded:
            level += 1
            for element in queue:
                self.show(element, level)  # recursive call

    def expand_tree(self, position, mode=_DEPTH):
        # Python generator. Loosly based on an algorithm from 'Essential LISP' by
        # John R. Anderson, Albert T. Corbett, and Brian J. Reiser, page 239-241
        yield position
        queue = self[position].fpointer
        while queue:
            yield queue[0]
            expansion = self[queue[0]].fpointer
            if mode is _DEPTH:
                queue = expansion + queue[1:]  # depth-first
            elif mode is _WIDTH:
                queue = queue[1:] + expansion  # width-first

    def is_branch(self, position):
        return self[position].fpointer

    def __update_fpointer(self, position, identifier, mode):
        if position is None:
            return
        else:
            self[position].update_fpointer(identifier, mode)

    def __update_bpointer(self, position, identifier):
        self[position].bpointer = identifier

    def __getitem__(self, key):
        return self.nodes[self.get_index(key)]

    def __setitem__(self, key, item):
        self.nodes[self.get_index(key)] = item

    def __len__(self):
        return len(self.nodes)

    def __contains__(self, identifier):
        return [node.identifier for node in self.nodes if node.identifier is identifier]

if __name__ == "__main__":

    tree = Tree()
    tree.create_node("Harry", "harry")  # root node
    tree.create_node("Jane", "jane", parent = "harry")
    tree.create_node("Bill", "bill", parent = "harry")
    tree.create_node("Joe", "joe", parent = "jane")
    tree.create_node("Diane", "diane", parent = "jane")
    tree.create_node("George", "george", parent = "diane")
    tree.create_node("Mary", "mary", parent = "diane")
    tree.create_node("Jill", "jill", parent = "george")
    tree.create_node("Carol", "carol", parent = "jill")
    tree.create_node("Grace", "grace", parent = "bill")
    tree.create_node("Mark", "mark", parent = "jane")

    print("="*80)
    tree.show("harry")
    print("="*80)
    for node in tree.expand_tree("harry", mode=_WIDTH):
        print(node)
    print("="*80)

There's also this approach:

[self.myLabel changeTextWithAutoHeight:self.myStringToAssignToLabel width:180.0f];

# Close STDOUT file descriptor
exec 1<&-
# Close STDERR FD
exec 2<&-

# Open STDOUT as $LOG_FILE file for read and write.
exec 1<>$LOG_FILE

# Redirect STDERR to STDOUT
exec 2>&1

echo "This line will appear in $LOG_FILE, not 'on screen'"

Now, simple echo will write to $LOG_FILE. Useful for daemonizing.

To the author of the original post,

It depends what you need to achieve. If you just need to redirect in/out of a command you call from your script, the answers are already given. Mine is about redirecting within current script which affects all commands/built-ins(includes forks) after the mentioned code snippet.

Another cool solution is about redirecting to both std-err/out AND to logger or log file at once which involves splitting "a stream" into two. This functionality is provided by 'tee' command which can write/append to several file descriptors(files, sockets, pipes, etc) at once: tee FILE1 FILE2 ... >(cmd1) >(cmd2) ...

exec 3>&1 4>&2 1> >(tee >(logger -i -t 'my_script_tag') >&3) 2> >(tee >(logger -i -t 'my_script_tag') >&4)
trap 'cleanup' INT QUIT TERM EXIT


get_pids_of_ppid() {
    local ppid="$1"

    RETVAL=''
    local pids=`ps x -o pid,ppid | awk "\\$2 == \\"$ppid\\" { print \\$1 }"`
    RETVAL="$pids"
}


# Needed to kill processes running in background
cleanup() {
    local current_pid element
    local pids=( "$$" )

    running_pids=("${pids[@]}")

    while :; do
        current_pid="${running_pids[0]}"
        [ -z "$current_pid" ] && break

        running_pids=("${running_pids[@]:1}")
        get_pids_of_ppid $current_pid
        local new_pids="$RETVAL"
        [ -z "$new_pids" ] && continue

        for element in $new_pids; do
            running_pids+=("$element")
            pids=("$element" "${pids[@]}")
        done
    done

    kill ${pids[@]} 2>/dev/null
}

So, from the beginning. Let's assume we have terminal connected to /dev/stdout(FD #1) and /dev/stderr(FD #2). In practice, it could be a pipe, socket or whatever.

• Create FDs #3 and #4 and point to the same "location" as #1 and #2 respectively. Changing FD #1 doesn't affect FD #3 from now on. Now, FDs #3 and #4 point to STDOUT and STDERR respectively. These will be used as real terminal STDOUT and STDERR.
• 1> >(...) redirects STDOUT to command in parens
• parens(sub-shell) executes 'tee' reading from exec's STDOUT(pipe) and redirects to 'logger' command via another pipe to sub-shell in parens. At the same time it copies the same input to FD #3(terminal)
• the second part, very similar, is about doing the same trick for STDERR and FDs #2 and #4.

The result of running a script having the above line and additionally this one:

echo "Will end up in STDOUT(terminal) and /var/log/messages"

...is as follows:

$ ./my_script
Will end up in STDOUT(terminal) and /var/log/messages

$ tail -n1 /var/log/messages
Sep 23 15:54:03 wks056 my_script_tag[11644]: Will end up in STDOUT(terminal) and /var/log/messages

If you want to see clearer picture, add these 2 lines to the script:

ls -l /proc/self/fd/
ps xf

Make a 2-dimensional array that corresponds to the cells in your final image, called say heatmap_cells and instantiate it as all zeroes.

Choose two scaling factors that define the difference between each array element in real units, for each dimension, say x_scale and y_scale. Choose these such that all your datapoints will fall within the bounds of the heatmap array.

For each raw datapoint with x_value and y_value:

heatmap_cells[floor(x_value/x_scale),floor(y_value/y_scale)]+=1

Strings are just immutable char arrays

You just need to make it mutable:

• either by using StringBuilder
• go in the unsafe world and play with pointers (dangerous though)

and try to iterate through the array of characters the least amount of times. Note the HashSet here, as it avoids to traverse the character sequence inside the loop. Should you need an even faster lookup, you can replace HashSet by an optimized lookup for char (based on an array[256]).

Example with StringBuilder

public static void MultiReplace(this StringBuilder builder, 
    char[] toReplace, 
    char replacement)
{
    HashSet<char> set = new HashSet<char>(toReplace);
    for (int i = 0; i < builder.Length; ++i)
    {
        var currentCharacter = builder[i];
        if (set.Contains(currentCharacter))
        {
            builder[i] = replacement;
        }
    }
}

Edit - Optimized version

public static void MultiReplace(this StringBuilder builder, 
    char[] toReplace,
    char replacement)
{
    var set = new bool[256];
    foreach (var charToReplace in toReplace)
    {
        set[charToReplace] = true;
    }
    for (int i = 0; i < builder.Length; ++i)
    {
        var currentCharacter = builder[i];
        if (set[currentCharacter])
        {
            builder[i] = replacement;
        }
    }
}

Then you just use it like this:

var builder = new StringBuilder("my bad,url&slugs");
builder.MultiReplace(new []{' ', '&', ','}, '-');
var result = builder.ToString();

I do that as

    $slightly_damaged = array_merge(
        array_slice($slightly_damaged, 0, 4, true) + ["4" => "0.0"], 
        array_slice($slightly_damaged, 4, count($slightly_damaged) - 4, true)
    );

I found too simple hack just do this add new element in AndroidManifest as:-

<activity android:name=".activityName"
          android:label="@string/app_name"
          android:noHistory="true"/>

the android:noHistory will clear your unwanted activity from Stack.

To set Compatibility error

use this before using pivot function

ALTER DATABASE [dbname] SET COMPATIBILITY_LEVEL = 100  

The issue is because you have a bean of type SuggestionService created through @Component annotation and also through the XML config . As explained by JB Nizet, this will lead to the creation of a bean with name 'suggestionService' created via @Component and another with name 'SuggestionService' created through XML .

When you refer SuggestionService by @Autowired, in your controller, Spring autowires "by type" by default and find two beans of type 'SuggestionService'

You could do the following

1. Remove @Component from your Service and depend on mapping via XML - Easiest

2. Remove SuggestionService from XML and autowire the dependencies - use util:map to inject the indexSearchers map.

3. Use @Resource instead of @Autowired to pick the bean by its name .

    @Resource(name="suggestionService")
    private SuggestionService service;
   

or

    @Resource(name="SuggestionService")
    private SuggestionService service;

both should work.The third is a dirty fix and it's best to resolve the bean conflict through other ways.

Check if string is alphanumeric or alphanumeric + some allowed chars

The fastest alphanumeric method is likely as mentioned at: Best way to alphanumeric check in Javascript as it operates on number ranges directly.

Then, to allow a few other extra chars sanely we can just put them in a Set for fast lookup.

I believe that this implementation will deal with surrogate pairs correctly correctly.

#!/usr/bin/env node

const assert = require('assert');

const char_is_alphanumeric = function(c) {
  let code = c.codePointAt(0);
  return (
    // 0-9
    (code > 47 && code < 58) ||
    // A-Z
    (code > 64 && code < 91) ||
    // a-z
    (code > 96 && code < 123)
  )
}

const is_alphanumeric = function (str) {
  for (let c of str) {
    if (!char_is_alphanumeric(c)) {
      return false;
    }
  }
  return true;
};

// Arbitrarily defined as alphanumeric or '-' or '_'.
const is_almost_alphanumeric = function (str) {
  for (let c of str) {
    if (
      !char_is_alphanumeric(c) &&
      !is_almost_alphanumeric.almost_chars.has(c)
    ) {
      return false;
    }
  }
  return true;
};
is_almost_alphanumeric.almost_chars = new Set(['-', '_']);

assert( is_alphanumeric('aB0'));
assert(!is_alphanumeric('aB0_-'));
assert(!is_alphanumeric('aB0_-*'));
assert(!is_alphanumeric('??'));

assert( is_almost_alphanumeric('aB0'));
assert( is_almost_alphanumeric('aB0_-'));
assert(!is_almost_alphanumeric('aB0_-*'));
assert(!is_almost_alphanumeric('??'));

GitHub upstream.

Tested in Node.js v10.15.1.

Don't look too far.

If you develop with ASP.NET MVC, you simply have the user as a property of the Controller class. So in case you get lost in some models looking for the current user, try to step back and to get the relevant information in the controller.

In the controller, just use:

using Microsoft.AspNet.Identity;

  ...

  var userId = User.Identity.GetUserId();
  ...

with userId as a string.

This is working fine:

$('#country').val($("#country option:contains('It\'s Me')").val());

The following line replaces None with NaN:

df['column'].replace('None', np.nan, inplace=True)

Here is the typical structure of new Codeigniter project:

- application/
- system/
- user_guide/
- index.php <- this is the file you need to change

I usually use this code in my CI index.php. Just change local_server_name to the name of your local webserver.

With this code you can deploy your site to your production server without changing index.php each time.

// Domain-based environment
if ($_SERVER['SERVER_NAME'] == 'local_server_name') {
    define('ENVIRONMENT', 'development');
} else {
    define('ENVIRONMENT', 'production');
}

/*
 *---------------------------------------------------------------
 * ERROR REPORTING
 *---------------------------------------------------------------
 *
 * Different environments will require different levels of error reporting.
 * By default development will show errors but testing and live will hide them.
 */

if (defined('ENVIRONMENT')) {
    switch (ENVIRONMENT) {
        case 'development':
            error_reporting(E_ALL);
            break;
        case 'testing':
        case 'production':
            error_reporting(0);
            ini_set('display_errors', 0);  
            break;
        default:
            exit('The application environment is not set correctly.');
    }
}

Use the TextFieldParser class built into the .Net framework.

Here's some code copied from an MSDN forum post by Paul Clement. It converts the CSV into a new in-memory DataTable and then binds the DataGridView to the DataTable

    Dim TextFileReader As New Microsoft.VisualBasic.FileIO.TextFieldParser("C:\Documents and Settings\...\My Documents\My Database\Text\SemiColonDelimited.txt")

    TextFileReader.TextFieldType = FileIO.FieldType.Delimited
    TextFileReader.SetDelimiters(";")

    Dim TextFileTable As DataTable = Nothing

    Dim Column As DataColumn
    Dim Row As DataRow
    Dim UpperBound As Int32
    Dim ColumnCount As Int32
    Dim CurrentRow As String()

    While Not TextFileReader.EndOfData
        Try
            CurrentRow = TextFileReader.ReadFields()
            If Not CurrentRow Is Nothing Then
                ''# Check if DataTable has been created
                If TextFileTable Is Nothing Then
                    TextFileTable = New DataTable("TextFileTable")
                    ''# Get number of columns
                    UpperBound = CurrentRow.GetUpperBound(0)
                    ''# Create new DataTable
                    For ColumnCount = 0 To UpperBound
                        Column = New DataColumn()
                        Column.DataType = System.Type.GetType("System.String")
                        Column.ColumnName = "Column" & ColumnCount
                        Column.Caption = "Column" & ColumnCount
                        Column.ReadOnly = True
                        Column.Unique = False
                        TextFileTable.Columns.Add(Column)
                    Next
                End If
                Row = TextFileTable.NewRow
                For ColumnCount = 0 To UpperBound
                    Row("Column" & ColumnCount) = CurrentRow(ColumnCount).ToString
                Next
                TextFileTable.Rows.Add(Row)
            End If
        Catch ex As _
        Microsoft.VisualBasic.FileIO.MalformedLineException
            MsgBox("Line " & ex.Message & _
            "is not valid and will be skipped.")
        End Try
    End While
    TextFileReader.Dispose()
    frmMain.DataGrid1.DataSource = TextFileTable

Tie::File is what you need:

Synopsis

# This file documents Tie::File version 0.98
use Tie::File;

tie @array, 'Tie::File', 'filename' or die ...;

$array[13] = 'blah';     # line 13 of the file is now 'blah'
print $array[42];        # display line 42 of the file

$n_recs = @array;        # how many records are in the file?
$#array -= 2;            # chop two records off the end


for (@array) {
  s/PERL/Perl/g;         # Replace PERL with Perl everywhere in the file
}

# These are just like regular push, pop, unshift, shift, and splice
# Except that they modify the file in the way you would expect

push @array, new recs...;
my $r1 = pop @array;
unshift @array, new recs...;
my $r2 = shift @array;
@old_recs = splice @array, 3, 7, new recs...;

untie @array;            # all finished

String anotherPalindrome = "Niagara. O roar again!"; 
String roar = anotherPalindrome.substring(11, 15); 

You can also do like these

This is my structure, and how I solve this:

MyProject/app/libs/mylib-1.0.0.aar

MyProject/app/myModulesFolder/myLibXYZ

On build.gradle

from Project/app/myModulesFolder/myLibXYZ

I have put this:

repositories {
   flatDir {
    dirs 'libs', '../../libs'
  }
}
compile (name: 'mylib-1.0.0', ext: 'aar')

Done and working fine, my submodule XYZ depends on somelibrary from main module.

1. Check what security group you are using for your instance. See value of Security Groups column in row of your instance. It's important - I changed rules for default group, but my instance was under quickstart-1 group when I had similar issue.
2. Go to Security Groups tab, go to Inbound tab, select HTTP in Create a new rule combo-box, leave 0.0.0.0/0 in source field and click Add Rule, then Apply rule changes.

I came across the same problem, and found that easier way is to undock the developer tool's video to a separate window! (Using the right hand top corner toolbar button of developer tools window) and in the new window , simply say select all and copy and paste to excel!!

According to bootstrap's documentation, the class is used to hide information intended only for screen readers from the layout of the rendered page.

Screen readers will have trouble with your forms if you don't include a label for every input. For these inline forms, you can hide the labels using the .sr-only class.

Here is an example styling used:

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0,0,0,0);
  border: 0;
}

Is it important or can I remove it? Works fine without.

It's important, don't remove it.

You should always consider screen readers for accessibility purposes. Usage of the class will hide the element anyways, therefore you shouldn't see a visual difference.

If you're interested in reading about accessibility:

• Web Accessibility Initiative (WAI)

• MDN Accessibility documentation

Check out iText; it is a pure Java PDF toolkit which has support for reading data from HTML. I used it recently in a project when I needed to pull content from our CMS and export as PDF files, and it was all rather straightforward. The support for CSS and style tags is pretty limited, but it does render tables without any problems (I never managed to set column width though).

Creating a PDF from HTML goes something like this:

Document doc = new Document(PageSize.A4);
PdfWriter.getInstance(doc, out);
doc.open();
HTMLWorker hw = new HTMLWorker(doc);
hw.parse(new StringReader(html));
doc.close();

Isn't it already created ? Mkdir returns false if the folder already exists too mkdir

Try setting a Windows System Environment variable called _JAVA_OPTIONS with the heap size you want. Java should be able to find it and act accordingly.

You can use FolderBrowserDialog instead of FileDialog and get the path from the OK result.

FolderBrowserDialog browser = new FolderBrowserDialog();
string tempPath ="";

if (browser.ShowDialog() == DialogResult.OK)
{
  tempPath  = browser.SelectedPath; // prints path
}

There is also configuration option: query_cache_size=0

To disable the query cache at server startup, set the query_cache_size system variable to 0. By disabling the query cache code, there is no noticeable overhead. If you build MySQL from source, query cache capabilities can be excluded from the server entirely by invoking configure with the --without-query-cache option.

See http://dev.mysql.com/doc/refman/5.1/en/query-cache.html

First of all, it is a bad design, if you need something like that, it is good idea to refactor, e.g. by renaming the method. Java allows calling of overriden method using the "super" keyword, but only one level up in the hierarchy, I am not sure, maybe Scala and some other JVM languages support it for any level.

You need to push the container down the navbar.

Please find my working fiddle here http://jsfiddle.net/meetravi/aXCMW/1/

<header>

    <h2 class="title">Test</h2>
</header>
<div class="navbar">
    <div class="navbar-inner">
        <ul class="nav">
            <li class="active"><a href="#">Test1</a></li>
            <li><a href="#">Test2</a></li>
            <li><a href="#">Test3</a></li>
            <li><a href="#">Test4</a></li>
            <li><a href="#">Test5</a></li>

        </ul>
    </div>
</div>
<div class="container">

</div>

        List<int> a = new List<int>() { 1, 2, 3, 4, 5 };
        a.ForEach(p => Console.WriteLine(p));

edit: ahhh he beat me to it.

from __future__ import with_statement
with open('file.txt','r+') as f:
    counter = str(int(f.read().strip())+1)
    f.seek(0)
    f.write(counter)

For z-index to work, you also need to give it a position:

header {
    width: 100%;
    height: 100px;
    background: url(../img/top.png) repeat-x;
    z-index: 110;
    position: relative;
}

I accomplished the above using relative positioning and floating to the right.

HTML code:

<div class="clearfix">                          
    <div class="outer-div">
        <div class="inner-div">
            <div class="floating-div">Float 1</div>
            <div class="floating-div">Float 2</div>
            <div class="floating-div">Float 3</div>
        </div>
    </div>
</div>

CSS:

.outer-div { position: relative; float: right; right: 50%; }
.inner-div { position: relative; float: right; right: -50%; }
.floating-div { float: left; border: 1px solid red; margin: 0 1.5em; }

.clearfix:before,
.clearfix:after { content: " "; display: table; }
.clearfix:after { clear: both; }
.clearfix { *zoom: 1; }

JSFiddle: http://jsfiddle.net/MJ9yp/

This will work in IE8 and up, but not earlier (surprise, surprise!)

I do not recall the source of this method unfortunately, so I cannot give credit to the original author. If anybody else knows, please post the link!

Range with step ES6, that works similar to python list(range(start, stop[, step])):

const range = (start, stop, step = 1) => {
  return [...Array(stop - start).keys()]
    .filter(i => !(i % Math.round(step)))
    .map(v => start + v)
}

Examples:

range(0, 8) // [0, 1, 2, 3, 4, 5, 6, 7]
range(4, 9) // [4, 5, 6, 7, 8]
range(4, 9, 2) // [4, 6, 8] 
range(4, 9, 3) // [4, 7]

Hmm it has been a little while but from what I remember...
If you want a custom window you can just make a new frame and make it show up just like you would with the main window. Java also has a great dialog library that you can check out here:

How to Make Dialogs

That may be able to give you the functionality you are looking for with a whole lot less effort.

Object[] possibilities = {"ham", "spam", "yam"};
String s = (String)JOptionPane.showInputDialog(
                    frame,
                    "Complete the sentence:\n"
                    + "\"Green eggs and...\"",
                    "Customized Dialog",
                    JOptionPane.PLAIN_MESSAGE,
                    icon,
                    possibilities,
                    "ham");

//If a string was returned, say so.
if ((s != null) && (s.length() > 0)) {
    setLabel("Green eggs and... " + s + "!");
    return;
}

//If you're here, the return value was null/empty.
setLabel("Come on, finish the sentence!");

If you do not care to limit the user's choices, you can either use a form of the showInputDialog method that takes fewer arguments or specify null for the array of objects. In the Java look and feel, substituting null for possibilities results in a dialog that has a text field and looks like this:

You need to add type assertion .(string). It is necessary because the map is of type map[string]interface{}:

host := arguments["<host>"].(string) + ":" + arguments["<port>"].(string)

Latest version of Docopt returns Opts object that has methods for conversion:

host, err := arguments.String("<host>")
port, err := arguments.String("<port>")
host_port := host + ":" + port

Thanks to @user2630576 and @Ed.S.

the following worked a treat:

BACKUP LOG [database] TO DISK = 'D:\database.bak'
GO

ALTER DATABASE [database] SET RECOVERY SIMPLE

use [database]

declare @log_File_Name varchar(200)

select @log_File_Name = name from sysfiles where filename like '%LDF'

declare @i int = FILE_IDEX ( @log_File_Name)

dbcc shrinkfile ( @i , 50)

ALTER DATABASE [database] SET RECOVERY FULL

The other answers address the main thrust of the question, but just to comment on this part...

PS C:\> [array]$foo = @("bar")
PS C:\> $foo -eq $null
PS C:\>

How can "-eq $null" give no results? It's either $null or it's not.

It's confusing at first, but that is giving you the result of $foo -eq $null, it's just that the result has no displayable representation.

Since $foo holds an array, $foo -eq $null means "return an array containing the elements of $foo that are equal to $null". Are there any elements of $foo that are equal to $null? No, so $foo -eq $null should return an empty array. That's exactly what it does, the problem is that when an empty array is displayed at the console you see...nothing...

PS> @()
PS> 

The array is still there, even if you can't see its elements...

PS> @().GetType()

IsPublic IsSerial Name                                     BaseType
-------- -------- ----                                     --------
True     True     Object[]                                 System.Array


PS> @().Length
0

We can use similar commands to confirm that $foo -eq $null is returning an array that we're not able to "see"...

PS> $foo -eq $null
PS> ($foo -eq $null).GetType()

IsPublic IsSerial Name                                     BaseType
-------- -------- ----                                     --------
True     True     Object[]                                 System.Array


PS> ($foo -eq $null).Length
0
PS> ($foo -eq $null).GetValue(0)
Exception calling "GetValue" with "1" argument(s): "Index was outside the bounds of the array."
At line:1 char:1
+ ($foo -eq $null).GetValue(0)
+ ~~~~~~~~~~~~~~~~~~~~~~~~~~~~
    + CategoryInfo          : NotSpecified: (:) [], MethodInvocationException
    + FullyQualifiedErrorId : IndexOutOfRangeException

Note that I am calling the Array.GetValue method instead of using the indexer (i.e. ($foo -eq $null)[0]) because the latter returns $null for invalid indices and there's no way to distinguish them from a valid index that happens to contain $null.

We see similar behavior if we test for $null in/against an array that contains $null elements...

PS> $bar = @($null)
PS> $bar -eq $null
PS> ($bar -eq $null).GetType()

IsPublic IsSerial Name                                     BaseType
-------- -------- ----                                     --------
True     True     Object[]                                 System.Array


PS> ($bar -eq $null).Length
1
PS> ($bar -eq $null).GetValue(0)
PS> $null -eq ($bar -eq $null).GetValue(0)
True
PS> ($bar -eq $null).GetValue(0) -eq $null
True
PS> ($bar -eq $null).GetValue(1)
Exception calling "GetValue" with "1" argument(s): "Index was outside the bounds of the array."
At line:1 char:1
+ ($bar -eq $null).GetValue(1)
+ ~~~~~~~~~~~~~~~~~~~~~~~~~~~~
    + CategoryInfo          : NotSpecified: (:) [], MethodInvocationException
    + FullyQualifiedErrorId : IndexOutOfRangeException

In this case, $bar -eq $null returns an array containing one element, $null, which has no visual representation at the console...

PS> @($null)
PS> @($null).GetType()

IsPublic IsSerial Name                                     BaseType
-------- -------- ----                                     --------
True     True     Object[]                                 System.Array


PS> @($null).Length
1

htmlStr is string then You need to Date and Time variables to string

while (reader.Read())
                {
                    DateTime Date = reader.GetDateTime(0);
                    DateTime Time = reader.GetDateTime(1);
                    htmlStr += "<tr><td>" + Date.ToString() + "</td><td>"  + 
                    Time.ToString() + "</td></tr>";                  
                }

That means /usr/local/mysql/bin/mysql is not in the PATH variable..

Either execute /usr/local/mysql/bin/mysql to get your mysql shell,

or type this in your terminal:

PATH=$PATH:/usr/local/mysql/bin

to add that to your PATH variable so you can just run mysql without specifying the path

Try

if NOT "asdf" == "fdas" echo asdf

In my case, previously I use idea to generate entity by database schema, and the persistence.xml is automatically generated in src/main/java/META-INF,and according to https://stackoverflow.com/a/23890419/10701129, I move it to src/main/resources/META-INF, also marked META-INF as source root. It works for me.

But just simply marking original META-INF(that is, src/main/java/META-INF) as source root, doesn't work, which confuses me.

and this is the structre: