Use iloc to access by position (rather than label):

In [11]: df = pd.DataFrame([[1, 2], [3, 4]], ['a', 'b'], ['A', 'B'])

In [12]: df
Out[12]: 
   A  B
a  1  2
b  3  4

In [13]: df.iloc[0]  # first row in a DataFrame
Out[13]: 
A    1
B    2
Name: a, dtype: int64

In [14]: df['A'].iloc[0]  # first item in a Series (Column)
Out[14]: 1

Building on the Python 2 solution from @GarethLatty, the following is a way to get a single line equivalent without intermediate variables in Python 2.

t=iter([1, 1, 2, 3, 5, 8, 13, 21, 34, 55]);h,t = [(h,list(t)) for h in t][0]

If you need it to be exception-proof (i.e. supporting empty list), then add:

t=iter([]);h,t = ([(h,list(t)) for h in t]+[(None,[])])[0]

If you want to do it without the semicolon, use:

h,t = ([(h,list(t)) for t in [iter([1,2,3,4])] for h in t]+[(None,[])])[0]

#!/usr/bin/python

import subprocess

p = subprocess.Popen(["tail", "-n 3", "passlist"], stdout=subprocess.PIPE)

output, err = p.communicate()

print  output

This Method Worked for me

First, it's always worth noting that git reset --hard is a potentially dangerous command, since it throws away all your uncommitted changes. For safety, you should always check that the output of git status is clean (that is, empty) before using it.

Initially you say the following:

So I know that Git tracks changes I make to my application, and it holds on to them until I commit the changes, but here's where I'm hung up:

That's incorrect. Git only records the state of the files when you stage them (with git add) or when you create a commit. Once you've created a commit which has your project files in a particular state, they're very safe, but until then Git's not really "tracking changes" to your files. (for example, even if you do git add to stage a new version of the file, that overwrites the previously staged version of that file in the staging area.)

In your question you then go on to ask the following:

When I want to revert to a previous commit I use: git reset --hard HEAD And git returns: HEAD is now at 820f417 micro

How do I then revert the files on my hard drive back to that previous commit?

If you do git reset --hard <SOME-COMMIT> then Git will:

• Make your current branch (typically master) back to point at <SOME-COMMIT>.
• Then make the files in your working tree and the index ("staging area") the same as the versions committed in <SOME-COMMIT>.

HEAD points to your current branch (or current commit), so all that git reset --hard HEAD will do is to throw away any uncommitted changes you have.

So, suppose the good commit that you want to go back to is f414f31. (You can find that via git log or any history browser.) You then have a few different options depending on exactly what you want to do:

• Change your current branch to point to the older commit instead. You could do that with git reset --hard f414f31. However, this is rewriting the history of your branch, so you should avoid it if you've shared this branch with anyone. Also, the commits you did after f414f31 will no longer be in the history of your master branch.

• Create a new commit that represents exactly the same state of the project as f414f31, but just adds that on to the history, so you don't lose any history. You can do that using the steps suggested in this answer - something like:

  git reset --hard f414f31
  git reset --soft HEAD@{1}
  git commit -m "Reverting to the state of the project at f414f31"
  

To select the ith row, use iloc:

In [31]: df_test.iloc[0]
Out[31]: 
ATime     1.2
X         2.0
Y        15.0
Z         2.0
Btime     1.2
C        12.0
D        25.0
E        12.0
Name: 0, dtype: float64

To select the ith value in the Btime column you could use:

In [30]: df_test['Btime'].iloc[0]
Out[30]: 1.2

There is a difference between df_test['Btime'].iloc[0] (recommended) and df_test.iloc[0]['Btime']:

DataFrames store data in column-based blocks (where each block has a single dtype). If you select by column first, a view can be returned (which is quicker than returning a copy) and the original dtype is preserved. In contrast, if you select by row first, and if the DataFrame has columns of different dtypes, then Pandas copies the data into a new Series of object dtype. So selecting columns is a bit faster than selecting rows. Thus, although df_test.iloc[0]['Btime'] works, df_test['Btime'].iloc[0] is a little bit more efficient.

There is a big difference between the two when it comes to assignment. df_test['Btime'].iloc[0] = x affects df_test, but df_test.iloc[0]['Btime'] may not. See below for an explanation of why. Because a subtle difference in the order of indexing makes a big difference in behavior, it is better to use single indexing assignment:

df.iloc[0, df.columns.get_loc('Btime')] = x

df.iloc[0, df.columns.get_loc('Btime')] = x (recommended):

The recommended way to assign new values to a DataFrame is to avoid chained indexing, and instead use the method shown by andrew,

df.loc[df.index[n], 'Btime'] = x

or

df.iloc[n, df.columns.get_loc('Btime')] = x

The latter method is a bit faster, because df.loc has to convert the row and column labels to positional indices, so there is a little less conversion necessary if you use df.iloc instead.

df['Btime'].iloc[0] = x works, but is not recommended:

Although this works, it is taking advantage of the way DataFrames are currently implemented. There is no guarantee that Pandas has to work this way in the future. In particular, it is taking advantage of the fact that (currently) df['Btime'] always returns a view (not a copy) so df['Btime'].iloc[n] = x can be used to assign a new value at the nth location of the Btime column of df.

Since Pandas makes no explicit guarantees about when indexers return a view versus a copy, assignments that use chained indexing generally always raise a SettingWithCopyWarning even though in this case the assignment succeeds in modifying df:

In [22]: df = pd.DataFrame({'foo':list('ABC')}, index=[0,2,1])
In [24]: df['bar'] = 100
In [25]: df['bar'].iloc[0] = 99
/home/unutbu/data/binky/bin/ipython:1: SettingWithCopyWarning: 
A value is trying to be set on a copy of a slice from a DataFrame

See the caveats in the documentation: http://pandas.pydata.org/pandas-docs/stable/indexing.html#indexing-view-versus-copy
  self._setitem_with_indexer(indexer, value)

In [26]: df
Out[26]: 
  foo  bar
0   A   99  <-- assignment succeeded
2   B  100
1   C  100

df.iloc[0]['Btime'] = x does not work:

In contrast, assignment with df.iloc[0]['bar'] = 123 does not work because df.iloc[0] is returning a copy:

In [66]: df.iloc[0]['bar'] = 123
/home/unutbu/data/binky/bin/ipython:1: SettingWithCopyWarning: 
A value is trying to be set on a copy of a slice from a DataFrame

See the caveats in the documentation: http://pandas.pydata.org/pandas-docs/stable/indexing.html#indexing-view-versus-copy

In [67]: df
Out[67]: 
  foo  bar
0   A   99  <-- assignment failed
2   B  100
1   C  100

Warning: I had previously suggested df_test.ix[i, 'Btime']. But this is not guaranteed to give you the ith value since ix tries to index by label before trying to index by position. So if the DataFrame has an integer index which is not in sorted order starting at 0, then using ix[i] will return the row labeled i rather than the ith row. For example,

In [1]: df = pd.DataFrame({'foo':list('ABC')}, index=[0,2,1])

In [2]: df
Out[2]: 
  foo
0   A
2   B
1   C

In [4]: df.ix[1, 'foo']
Out[4]: 'C'

It is very important that you tell the browser what type of data you are sending it. The difference should be obvious. Try viewing the output of the following PHP file in your browser;

<?php
header('Content-Type:text/html');
?>
<p>Hello</p>

You will see:

hello

(note that you will get the same results if you miss off the header line in this case - text/html is php's default)

Change it to text/plain

<?php
header('Content-Type:text/plain');
?>
<p>Hello</p>

You will see:

<p>Hello</p>

Why does this matter? If you have something like the following in a php script that, for example, is used by an ajax request:

<?php
header('Content-Type:text/html');
print "Your name is " . $_GET['name']

Someone can put a link to a URL like http://example.com/test.php?name=%3Cscript%20src=%22http://example.com/eviljs%22%3E%3C/script%3E on their site, and if a user clicks it, they have exposed all their information on your site to whoever put up the link. If you serve the file as text/plain, you are safe.

Note that this is a silly example, it's more likely that the bad script tag would be added by the attacker to a field in the database or by using a form submission.

I just fought with this very thing and this update didn't work.

This eventually did in Swift:

let myUrlStr : String = myUrl!.relativePath!

I'm going to heavily quote the Object documentation here, because I think it has some great explanations. I encourage you to read it, and also the documentation for these methods as they're overridden in other classes, like String.

Side note: if you want to try these out for yourself on different objects, use something like this:

class Object
  def all_equals(o)
    ops = [:==, :===, :eql?, :equal?]
    Hash[ops.map(&:to_s).zip(ops.map {|s| send(s, o) })]
  end
end

"a".all_equals "a" # => {"=="=>true, "==="=>true, "eql?"=>true, "equal?"=>false}

== — generic "equality"

At the Object level, == returns true only if obj and other are the same object. Typically, this method is overridden in descendant classes to provide class-specific meaning.

This is the most common comparison, and thus the most fundamental place where you (as the author of a class) get to decide if two objects are "equal" or not.

=== — case equality

For class Object, effectively the same as calling #==, but typically overridden by descendants to provide meaningful semantics in case statements.

This is incredibly useful. Examples of things which have interesting === implementations:

• Range
• Regex
• Proc (in Ruby 1.9)

So you can do things like:

case some_object
when /a regex/
  # The regex matches
when 2..4
  # some_object is in the range 2..4
when lambda {|x| some_crazy_custom_predicate }
  # the lambda returned true
end

See my answer here for a neat example of how case+Regex can make code a lot cleaner. And of course, by providing your own === implementation, you can get custom case semantics.

eql? — Hash equality

The eql? method returns true if obj and other refer to the same hash key. This is used by Hash to test members for equality. For objects of class Object, eql? is synonymous with ==. Subclasses normally continue this tradition by aliasing eql? to their overridden == method, but there are exceptions. Numeric types, for example, perform type conversion across ==, but not across eql?, so:

1 == 1.0     #=> true
1.eql? 1.0   #=> false

So you're free to override this for your own uses, or you can override == and use alias :eql? :== so the two methods behave the same way.

equal? — identity comparison

Unlike ==, the equal? method should never be overridden by subclasses: it is used to determine object identity (that is, a.equal?(b) iff a is the same object as b).

This is effectively pointer comparison.

Consider the case statement as well which is compatible with most sh-based shells:

case $str in
/*)
    echo 1
    ;;
*)
    echo 0
    ;;
esac

In order to answer your question, we need two elements:

1. Understanding of the characteristics of different architecture styles/patterns.
2. Understanding of the characteristics of different programming paradigms.

A list of software architecture styles/pattern is shown on the software architecture article on Wikipeida. And you can research on them easily on the web.

In short and general, Procedural is good for a model that follows a procedure, OOP is good for design, and Functional is good for high level programming.

I think you should try reading the history on each paradigm and see why people create it and you can understand them easily.

After understanding them both, you can link the items of architecture styles/patterns to programming paradigms.

In a word, you can't.

3.65 cannot be represented exactly as a float. The number that you're getting is the nearest number to 3.65 that has an exact float representation.

The difference between (older?) Python 2 and 3 is purely due to the default formatting.

I am seeing the following both in Python 2.7.3 and 3.3.0:

In [1]: 3.65
Out[1]: 3.65

In [2]: '%.20f' % 3.65
Out[2]: '3.64999999999999991118'

For an exact decimal datatype, see decimal.Decimal.

_method hidden field workaround

The following simple technique is used by a few web frameworks:

• add a hidden _method parameter to any form that is not GET or POST:

  <input type="hidden" name="_method" value="PUT">
  

  This can be done automatically in frameworks through the HTML creation helper method.

• fix the actual form method to POST (<form method="post")

• processes _method on the server and do exactly as if that method had been sent instead of the actual POST

You can achieve this in:

• Rails: form_tag
• Laravel: @method("PATCH")

Rationale / history of why it is not possible in pure HTML: https://softwareengineering.stackexchange.com/questions/114156/why-there-are-no-put-and-delete-methods-in-html-forms

As per the documentation you can add comments only at the time of creating table. So it is must to have table definition. One way to automate it using the script to read the definition and update your comments.

Reference:

http://cornempire.net/2010/04/15/add-comments-to-column-mysql/

http://bugs.mysql.com/bug.php?id=64439

1) react-router > V5 useHistory hook:

If you have React >= 16.8 and functional components you can use the useHistory hook from react-router.

import React from 'react';
import { useHistory } from 'react-router-dom';

const YourComponent = () => {
    const history = useHistory();

    const handleClick = () => {
        history.push("/path/to/push");
    }

    return (
        <div>
            <button onClick={handleClick} type="button" />
        </div>
    );
}

export default YourComponent;

2) react-router > V4 withRouter HOC:

As @ambar mentioned in the comments, React-router has changed their code base since their V4. Here are the documentations - official, withRouter

import React, { Component } from 'react';
import { withRouter } from "react-router-dom";

class YourComponent extends Component {
    handleClick = () => {
        this.props.history.push("path/to/push");
    }

    render() {
        return (
            <div>
                <button onClick={this.handleClick} type="button">
            </div>
        );
    };
}

export default withRouter(YourComponent);

3) React-router < V4 with browserHistory

You can achieve this functionality using react-router BrowserHistory. Code below:

import React, { Component } from 'react';
import { browserHistory } from 'react-router';

export default class YourComponent extends Component {
    handleClick = () => {
        browserHistory.push('/login');
    };

    render() {
        return (
            <div>
                <button onClick={this.handleClick} type="button">
            </div>
        );
    };
}

4) Redux connected-react-router

If you have connected your component with redux, and have configured connected-react-router all you have to do is this.props.history.push("/new/url"); ie, you don't need withRouter HOC to inject history to the component props.

// reducers.js
import { combineReducers } from 'redux';
import { connectRouter } from 'connected-react-router';

export default (history) => combineReducers({
    router: connectRouter(history),
    ... // rest of your reducers
});


// configureStore.js
import { createBrowserHistory } from 'history';
import { applyMiddleware, compose, createStore } from 'redux';
import { routerMiddleware } from 'connected-react-router';
import createRootReducer from './reducers';
...
export const history = createBrowserHistory();

export default function configureStore(preloadedState) {
    const store = createStore(
        createRootReducer(history), // root reducer with router state
        preloadedState,
        compose(
            applyMiddleware(
                routerMiddleware(history), // for dispatching history actions
                // ... other middlewares ...
            ),
        ),
    );

    return store;
}


// set up other redux requirements like for eg. in index.js
import { Provider } from 'react-redux';
import { Route, Switch } from 'react-router';
import { ConnectedRouter } from 'connected-react-router';
import configureStore, { history } from './configureStore';
...
const store = configureStore(/* provide initial state if any */)

ReactDOM.render(
    <Provider store={store}>
        <ConnectedRouter history={history}>
            <> { /* your usual react-router v4/v5 routing */ }
                <Switch>
                    <Route exact path="/yourPath" component={YourComponent} />
                </Switch>
            </>
        </ConnectedRouter>
    </Provider>,
    document.getElementById('root')
);


// YourComponent.js
import React, { Component } from 'react';
import { connect } from 'react-redux';
...

class YourComponent extends Component {
    handleClick = () => {
        this.props.history.push("path/to/push");
    }

    render() {
        return (
          <div>
            <button onClick={this.handleClick} type="button">
          </div>
        );
      }
    };

}

export default connect(mapStateToProps = {}, mapDispatchToProps = {})(YourComponent);

This worked for me install php72-php-bcmath.x86_64 Then,

systemctl restart php72-php-fpm.service

#include <iostream>
#include <string>
#include <vector>
#include <boost/assign/list_of.hpp>

int main()
{
    const std::vector< std::string > v = boost::assign::list_of( "abc" )( "xyz" );
    std::copy(
        v.begin(),
        v.end(),
        std::ostream_iterator< std::string >( std::cout, "\n" ) );
}

Default is:

Username: root

Password: [null]

The Password is set to 'password' in some versions.

With VLC i'm able to transcode a live RTSP stream (mpeg4) to an HTTP stream in a OGG format (Vorbis/Theora). The quality is poor but the video work in Chrome 9. I have also tested with a trancoding in WEBM (VP8) but it's don't seem to work (VLC have the option but i don't know if it's really implemented for now..)

The first to have a doc on this should notify us ;)

There is no DrawCircle method; use DrawEllipse instead. I have a static class with handy graphics extension methods. The following ones draw and fill circles. They are wrappers around DrawEllipse and FillEllipse:

public static class GraphicsExtensions
{
    public static void DrawCircle(this Graphics g, Pen pen,
                                  float centerX, float centerY, float radius)
    {
        g.DrawEllipse(pen, centerX - radius, centerY - radius,
                      radius + radius, radius + radius);
    }

    public static void FillCircle(this Graphics g, Brush brush,
                                  float centerX, float centerY, float radius)
    {
        g.FillEllipse(brush, centerX - radius, centerY - radius,
                      radius + radius, radius + radius);
    }
}

You can call them like this:

g.FillCircle(myBrush, centerX, centerY, radius);
g.DrawCircle(myPen, centerX, centerY, radius);

Support for TLS 1.0 and 1.1 was dropped for PyPI. If your system does not use a more recent version, it could explain your error.

Could you try reinstalling pip system-wide, to update your system dependencies to a newer version of TLS?

This seems to be related to Unable to install Python libraries

See Dominique Barton's answer:

Apparently pip is trying to access PyPI via HTTPS (which is encrypted and fine), but with an old (insecure) SSL version. Your system seems to be out of date. It might help if you update your packages.

On Debian-based systems I'd try:

apt-get update && apt-get upgrade python-pip

On Red Hat Linux-based systems:

yum update python-pip # (or python2-pip, at least on Red Hat Linux 7)

On Mac:

sudo easy_install -U pip

You can also try to update openssl separately.

I think that maybe it is because you are declaring a variable that you already declared:

var Name = new Array(6);
//...
var Name[0] = Name_cell.getValue();  //  <-- Here's the issue: 'var'

I think this should be like this:

var Name = new Array(6);
//...
Name[0] = Name_cell.getValue();

Tell me if it works! ;)

If you want to grow the array dynamically, you should use malloc() to dynamically allocate some fixed amount of memory, and then use realloc() whenever you run out. A common technique is to use an exponential growth function such that you allocate some small fixed amount and then make the array grow by duplicating the allocated amount.

Some example code would be:

size = 64; i = 0;
x = malloc(sizeof(words)*size); /* enough space for 64 words */
while (read_words()) {
    if (++i > size) {
        size *= 2;
        x = realloc(sizeof(words) * size);
    }
}
/* done with x */
free(x);

Stream.of().mapToInt().toArray() seems to be the best options.

int[] arr = Stream.of(new String[]{"1", "2", "3"})
                  .mapToInt(Integer::parseInt).toArray();
System.out.println(Arrays.toString(arr));

Ok I wonder when's the use but, here are two snipets you could use:

lastlog.cmd

@echo off
for /f "delims=" %%l in (log.txt) do set TimeStamp=%%l
echo %TimeStamp%

Change the "echo.." line, but the last log time is within %TimeStamp%. No temp files used, no clutter and reusable as it is in a variable.

On the other hand, if you need to know this WITHIN your code, and not from another batch, change your logging for:

set TimeStamp=%date%, %time%
echo %TimeStamp% >> log.txt

so that the variable %TimeStamp% is usable later when you need it.

enum Enum{ Banana, Orange, Apple } ;
static const char * EnumStrings[] = { "bananas & monkeys", "Round and orange", "APPLE" };

const char * getTextForEnum( int enumVal )
{
  return EnumStrings[enumVal];
}

Here's my attempt at a comprehensive answer from the dplyr perspective, following the broad outline of Arun's answer (but somewhat rearranged based on differing priorities).

Syntax

There is some subjectivity to syntax, but I stand by my statement that the concision of data.table makes it harder to learn and harder to read. This is partly because dplyr is solving a much easier problem!

One really important thing that dplyr does for you is that it constrains your options. I claim that most single table problems can be solved with just five key verbs filter, select, mutate, arrange and summarise, along with a "by group" adverb. That constraint is a big help when you're learning data manipulation, because it helps order your thinking about the problem. In dplyr, each of these verbs is mapped to a single function. Each function does one job, and is easy to understand in isolation.

You create complexity by piping these simple operations together with %>%. Here's an example from one of the posts Arun linked to:

diamonds %>%
  filter(cut != "Fair") %>%
  group_by(cut) %>%
  summarize(
    AvgPrice = mean(price),
    MedianPrice = as.numeric(median(price)),
    Count = n()
  ) %>%
  arrange(desc(Count))

Even if you've never seen dplyr before (or even R!), you can still get the gist of what's happening because the functions are all English verbs. The disadvantage of English verbs is that they require more typing than [, but I think that can be largely mitigated by better autocomplete.

Here's the equivalent data.table code:

diamondsDT <- data.table(diamonds)
diamondsDT[
  cut != "Fair", 
  .(AvgPrice = mean(price),
    MedianPrice = as.numeric(median(price)),
    Count = .N
  ), 
  by = cut
][ 
  order(-Count) 
]

It's harder to follow this code unless you're already familiar with data.table. (I also couldn't figure out how to indent the repeated [ in a way that looks good to my eye). Personally, when I look at code I wrote 6 months ago, it's like looking at a code written by a stranger, so I've come to prefer straightforward, if verbose, code.

Two other minor factors that I think slightly decrease readability:

• Since almost every data table operation uses [ you need additional context to figure out what's happening. For example, is x[y] joining two data tables or extracting columns from a data frame? This is only a small issue, because in well-written code the variable names should suggest what's happening.

• I like that group_by() is a separate operation in dplyr. It fundamentally changes the computation so I think should be obvious when skimming the code, and it's easier to spot group_by() than the by argument to [.data.table.

I also like that the the pipe isn't just limited to just one package. You can start by tidying your data with tidyr, and finish up with a plot in ggvis. And you're not limited to the packages that I write - anyone can write a function that forms a seamless part of a data manipulation pipe. In fact, I rather prefer the previous data.table code rewritten with %>%:

diamonds %>% 
  data.table() %>% 
  .[cut != "Fair", 
    .(AvgPrice = mean(price),
      MedianPrice = as.numeric(median(price)),
      Count = .N
    ), 
    by = cut
  ] %>% 
  .[order(-Count)]

And the idea of piping with %>% is not limited to just data frames and is easily generalised to other contexts: interactive web graphics, web scraping, gists, run-time contracts, ...)

Memory and performance

I've lumped these together, because, to me, they're not that important. Most R users work with well under 1 million rows of data, and dplyr is sufficiently fast enough for that size of data that you're not aware of processing time. We optimise dplyr for expressiveness on medium data; feel free to use data.table for raw speed on bigger data.

The flexibility of dplyr also means that you can easily tweak performance characteristics using the same syntax. If the performance of dplyr with the data frame backend is not good enough for you, you can use the data.table backend (albeit with a somewhat restricted set of functionality). If the data you're working with doesn't fit in memory, then you can use a database backend.

All that said, dplyr performance will get better in the long-term. We'll definitely implement some of the great ideas of data.table like radix ordering and using the same index for joins & filters. We're also working on parallelisation so we can take advantage of multiple cores.

Features

A few things that we're planning to work on in 2015:

• the readr package, to make it easy to get files off disk and in to memory, analogous to fread().

• More flexible joins, including support for non-equi-joins.

• More flexible grouping like bootstrap samples, rollups and more

I'm also investing time into improving R's database connectors, the ability to talk to web apis, and making it easier to scrape html pages.

I wish the error message would output the problem string. I was getting this due to a weird copy and paste problem of a "docker run" command. A space-like character was being used before the repo and image name.

I'm running TigerVNC on my Linux server, which has basic randr support. I just start vncserver without any -randr or multiple -geometry options.

When I run xrandr in a terminal, it displays all the available screen resolutions:

bash> xrandr
 SZ:    Pixels          Physical       Refresh
 0   1920 x 1200   ( 271mm x 203mm )   60
 1   1920 x 1080   ( 271mm x 203mm )   60
 2   1600 x 1200   ( 271mm x 203mm )   60
 3   1680 x 1050   ( 271mm x 203mm )   60
 4   1400 x 1050   ( 271mm x 203mm )   60
 5   1360 x 768    ( 271mm x 203mm )   60
 6   1280 x 1024   ( 271mm x 203mm )   60
 7   1280 x 960    ( 271mm x 203mm )   60
 8   1280 x 800    ( 271mm x 203mm )   60
 9   1280 x 720    ( 271mm x 203mm )   60
*10  1024 x 768    ( 271mm x 203mm )  *60
 11   800 x 600    ( 271mm x 203mm )   60
 12   640 x 480    ( 271mm x 203mm )   60
Current rotation - normal
Current reflection - none
Rotations possible - normal
Reflections possible - none

I can then easily switch to another resolution (f.e. switch to 1360x768):

bash> xrandr -s 5

I'm using TightVnc viewer as the client and it automatically adapts to the new resolution.

Use SecurityElement.Escape

using System;
using System.Security;

class Sample {
  static void Main() {
    string text = "Escape characters : < > & \" \'";
    string xmlText = SecurityElement.Escape(text);
//output:
//Escape characters : &lt; &gt; &amp; &quot; &apos;
    Console.WriteLine(xmlText);
  }
}

I assume X and Y are arrays? If so, there's a very simple way to do this:

x = [1, 1, 2, 4]
y = [1, 2, 2, 2]

# intersection
x & y            # => [1, 2]

# union
x | y            # => [1, 2, 4]

# difference
x - y            # => [4]

Source

From Code Complete

8 Defensive Programming

8.2 Assertions

An assertion is code that’s used during development—usually a routine or macro—that allows a program to check itself as it runs. When a assertion is true, that means everything is operating as expected. When it’s false, that means it has detected an unexpected error in the code. For example, if the system assumes that a customer-information file will never have more than 50,000 records, the program might contain an assertion that the number of records is less than or equal to 50,000. As long as the number of records is less than or equal to 50,000, the assertion will be silent. If it encounters more than 50,000 records, however, it will loudly “assert” that there is a error in the program.

Assertions are especially useful in large, complicated programs and in high-reliability programs. They enable programmers to more quickly flush out mismatched interface assumptions, errors that creep in when the code is modified, and so on.

An assertion usually takes two arguments: a boolean expression that describes the assumption that’s supposed to be true and a message to display if it isn’t.

(…)

Normally, you don’t want users to see assertion messages in production code; assertions are primarily for use during development and maintenance. Assertions are normally compiled into the code at development time and compiled out of the code for production. During development, assertions flush out contradictory assumptions, unexpected conditions, bad values passed to routines, and so on. During production, they are compiled out of the code so that the assertions don’t degrade system performance.

FWIW This may be a bit redundant to all the other answers and is very similar to the accepted answer which is spot on; but maybe it will help someone out.

git stash show --help will give you all you should need; including stash show info.

show [<stash>]

Show the changes recorded in the stash as a diff between the stashed state and its original parent. When no is given, shows the latest one. By default, the command shows the diffstat, but it will accept any format known to git diff (e.g., git stash show -p stash@{1} to view the second most recent stash in patch form). You can use stash.showStat and/or stash.showPatch config variables to change the default behavior.

Author Note

This answer is out of date. Fig not longer exists and has been replaced by Docker compose. Accepted answers cannot be deleted ....

Docker Compose supports the building of project hierachy. So it's now easy to support a Dockerfile in each sub directory.

+-- docker-compose.yml
+-- project1
¦   +-- Dockerfile
+-- project2
    +-- Dockerfile

Original answer

I just create a directory containing a Dockerfile for each component. Example:

• Setting up a docker / fig Mesos environment

When building the containers just give the directory name and Docker will select the correct Dockerfile.

You're looking for Select which can be used to transform\project the input sequence:

IEnumerable<string> strings = integers.Select(i => i.ToString());

Edit: The correct way (currently) to use a local AAR file as a build dependency is to use the module import wizard (File | New Module | Import .JAR or .AAR package) which will automatically add the .aar as a library module in your project.

Old Answer

Try this:

allprojects {
  repositories {
    jcenter()
    flatDir {
      dirs 'libs'
    }
  }
}

...

compile(name:'slidingmenu', ext:'aar')

The approach I took reads the header information from the first row to determine the indexes of the columns of interest.

You mentioned in the question that you also want the values output to a string. I dynamically build a format string for the output from the FORMAT column list. Rows are appended to the values string separated by a new line char.

The output column order is determined by the order of the column names in the FORMAT list.

In my code below the case of the column name in the FORMAT list is important. In the question above you've got 'Pincode' in your FORMAT list, but 'PinCode' in your excel. This wouldn't work below, it would need to be 'PinCode'.

from xlrd import open_workbook
wb = open_workbook('sample.xls')

FORMAT = ['Arm_id', 'DSPName', 'PinCode']
values = ""

for s in wb.sheets():
    headerRow = s.row(0)
    columnIndex = [x for y in FORMAT for x in range(len(headerRow)) if y == firstRow[x].value]
    formatString = ("%s,"*len(columnIndex))[0:-1] + "\n"

    for row in range(1,s.nrows):
        currentRow = s.row(row)
        currentRowValues = [currentRow[x].value for x in columnIndex]
        values += formatString % tuple(currentRowValues)

print values

For the sample input you gave above this code outputs:

>>> 1.0,JaVAS,282001.0
2.0,JaVAS,282002.0
3.0,JaVAS,282003.0

And because I'm a python noob, props be to: this answer, this answer, this question, this question and this answer.

<form>
  <input type="hidden" name="selval">
  <select onchange="this.form.selval.value=this.selectedIndex">
    <option>val1</option>
    <option>val2</option>
  </select>
</form>

pure javascript from within a form

Commenting on Ken Bertelson solution and answering Jan Hettich:

How it works

the takes_ary_as_arg descTable[@] optsTable[@] line in try_with_local_arys() function sends:

1. This is actually creates a copy of the descTable and optsTable arrays which are accessible to the takes_ary_as_arg function.
2. takes_ary_as_arg() function receives descTable[@] and optsTable[@] as strings, that means $1 == descTable[@] and $2 == optsTable[@].

3. in the beginning of takes_ary_as_arg() function it uses ${!parameter} syntax, which is called indirect reference or sometimes double referenced, this means that instead of using $1's value, we use the value of the expanded value of $1, example:

   baba=booba
   variable=baba
   echo ${variable} # baba
   echo ${!variable} # booba
   

   likewise for $2.

4. putting this in argAry1=("${!1}") creates argAry1 as an array (the brackets following =) with the expanded descTable[@], just like writing there argAry1=("${descTable[@]}") directly. the declare there is not required.

N.B.: It is worth mentioning that array initialization using this bracket form initializes the new array according to the IFS or Internal Field Separator which is by default tab, newline and space. in that case, since it used [@] notation each element is seen by itself as if he was quoted (contrary to [*]).

My reservation with it

In BASH, local variable scope is the current function and every child function called from it, this translates to the fact that takes_ary_as_arg() function "sees" those descTable[@] and optsTable[@] arrays, thus it is working (see above explanation).

Being that case, why not directly look at those variables themselves? It is just like writing there:

argAry1=("${descTable[@]}")

See above explanation, which just copies descTable[@] array's values according to the current IFS.

In summary

This is passing, in essence, nothing by value - as usual.

I also want to emphasize Dennis Williamson comment above: sparse arrays (arrays without all the keys defines - with "holes" in them) will not work as expected - we would loose the keys and "condense" the array.

That being said, I do see the value for generalization, functions thus can get the arrays (or copies) without knowing the names:

• for ~"copies": this technique is good enough, just need to keep aware, that the indices (keys) are gone.

• for real copies: we can use an eval for the keys, for example:

  eval local keys=(\${!$1})
  

and then a loop using them to create a copy. Note: here ! is not used it's previous indirect/double evaluation, but rather in array context it returns the array indices (keys).

• and, of course, if we were to pass descTable and optsTable strings (without [@]), we could use the array itself (as in by reference) with eval. for a generic function that accepts arrays.

Other answers posted here for this question did not work for me using the latest Visual Studio 2017 Enterprise edition (as of 2018-09-18).

Instead, I used this method:

1. Close all but one instance of Visual Studio.
2. In the running instance, access the menu Tools->Extensions and Updates.
3. In that dialog, choose Online->Visual Studio Marketplace->Tools->Setup & Deployment.
4. From the list that appears, select Microsoft Visual Studio 2017 Installer Projects.

Once installed, close and restart Visual Studio. Go to File->New Project and search for the word Installer. You'll know you have the correct templates installed if you see a list that looks something like this:

Recommended: don't translate in the controller, translate in your view

I'd recommend to keep your controller free from translation logic and translate your strings directly inside your view like this:

<h1>{{ 'TITLE.HELLO_WORLD' | translate }}</h1>

Using the provided service

Angular Translate provides the $translate service which you can use in your Controllers.

An example usage of the $translate service can be:

.controller('TranslateMe', ['$scope', '$translate', function ($scope, $translate) {
    $translate('PAGE.TITLE')
        .then(function (translatedValue) {
            $scope.pageTitle = translatedValue;
        });
});

The translate service also has a method for directly translating strings without the need to handle a promise, using $translate.instant():

.controller('TranslateMe', ['$scope', '$translate', function ($scope, $translate) {
    $scope.pageTitle = $translate.instant('TITLE.DASHBOARD'); // Assuming TITLE.DASHBOARD is defined
});

The downside with using $translate.instant() could be that the language file isn't loaded yet if you are loading it async.

Using the provided filter

This is my preferred way since I don't have to handle promises this way. The output of the filter can be directly set to a scope variable.

.controller('TranslateMe', ['$scope', '$filter', function ($scope, $filter) {
    var $translate = $filter('translate');

    $scope.pageTitle = $translate('TITLE.DASHBOARD'); // Assuming TITLE.DASHBOARD is defined
});

Using the provided directive

Since @PascalPrecht is the creator of this awesome library, I'd recommend going with his advise (see his answer below) and use the provided directive which seems to handle translations very intelligent.

The directive takes care of asynchronous execution and is also clever enough to unwatch translation ids on the scope if the translation has no dynamic values.

You can also use as Vector instead, as vectors are thread safe and arraylist are not. Though vectors are old but they can solve your purpose easily.

But you can make your Arraylist synchronized like code given this:

Collections.synchronizedList(new ArrayList(numberOfRaceCars())); 

The well-established "pattern" for reverse-iterating through closed-open ranges looks as follows

// Iterate over [begin, end) range in reverse
for (iterator = end; iterator-- != begin; ) {
  // Process `*iterator`
}

or, if you prefer,

// Iterate over [begin, end) range in reverse
for (iterator = end; iterator != begin; ) {
  --iterator;
  // Process `*iterator`
}

This pattern is useful, for example, for reverse-indexing an array using an unsigned index

int array[N];
...
// Iterate over [0, N) range in reverse
for (unsigned i = N; i-- != 0; ) {
  array[i]; // <- process it
}

(People unfamiliar with this pattern often insist on using signed integer types for array indexing specifically because they incorrectly believe that unsigned types are somehow "unusable" for reverse indexing)

It can be used for iterating over an array using a "sliding pointer" technique

// Iterate over [array, array + N) range in reverse
for (int *p = array + N; p-- != array; ) {
  *p; // <- process it
}

or it can be used for reverse-iteration over a vector using an ordinary (not reverse) iterator

for (vector<my_class>::iterator i = my_vector.end(); i-- != my_vector.begin(); ) {
  *i; // <- process it
}

The simplest solution I could find was to delete the parent directory from the working copy (with rm -rf, not svn delete), and then run svn update in the grandparent. Eg, if you deleted a/b/c, rm -rf a/b, cd a, svn up. That brings everything back. Of course, this is only a good solution if you have no other uncommitted changes in the parent directory that you want to keep.

Hopefully this page will be at the top of the results next time I google this question. It would be even better if someone suggested a cleaner method, of course.

See my question:

What is the best subversion client for Linux?

I also agree, GUI clients in linux suck.

I use subeclipse in Eclipse and RapidSVN in gnome.

You may use YQL however yahoo.finance.* tables are not the core yahoo tables. It is an open data table which uses the 'csv api' and converts it to json or xml format. It is more convenient to use but it's not always reliable. I could not use it just a while ago because it the table hits its storage limit or something...

You may use this php library to get historical data / quotes using YQL https://github.com/aygee/php-yql-finance

When one uses flow_from_directory the problem is how to interpret the probability outputs. As in, how to map the probability outputs and the class labels as how flow_from_directory creates one-hot vectors is not known in prior.

We can get a dictionary that maps the class labels to the index of the prediction vector that we get as the output when we use

generator= train_datagen.flow_from_directory("train", batch_size=batch_size)
label_map = (generator.class_indices)

The label_map variable is a dictionary like this

{'class_14': 5, 'class_10': 1, 'class_11': 2, 'class_12': 3, 'class_13': 4, 'class_2': 6, 'class_3': 7, 'class_1': 0, 'class_6': 10, 'class_7': 11, 'class_4': 8, 'class_5': 9, 'class_8': 12, 'class_9': 13}

Then from this the relation can be derived between the probability scores and class names.

Basically, you can create this dictionary by this code.

from glob import glob
class_names = glob("*") # Reads all the folders in which images are present
class_names = sorted(class_names) # Sorting them
name_id_map = dict(zip(class_names, range(len(class_names))))

The variable name_id_map in the above code also contains the same dictionary as the one obtained from class_indices function of flow_from_directory.

Hope this helps!

Obviously there is no periodic checking of Scope whether there is any change in the Objects attached to it. Not all the objects attached to scope are watched . Scope prototypically maintains a $$watchers . Scope only iterates through this $$watchers when $digest is called .

Angular adds a watcher to the $$watchers for each of these

1. {{expression}} — In your templates (and anywhere else where there’s an expression) or when we define ng-model.
   
2. $scope.$watch(‘expression/function’) — In your JavaScript we can just attach a scope object for angular to watch.

$watch function takes in three parameters:

1. First one is a watcher function which just returns the object or we can just add an expression.
   

2. Second one is a listener function which will be called when there is a change in the object. All the things like DOM changes will be implemented in this function.
   

3. The third being an optional parameter which takes in a boolean . If its true , angular deep watches the object & if its false Angular just does a reference watching on the object. Rough Implementation of $watch looks like this

Scope.prototype.$watch = function(watchFn, listenerFn) {
   var watcher = {
       watchFn: watchFn,
       listenerFn: listenerFn || function() { },
       last: initWatchVal  // initWatchVal is typically undefined
   };
   this.$$watchers.push(watcher); // pushing the Watcher Object to Watchers  
};

There is an interesting thing in Angular called Digest Cycle. The $digest cycle starts as a result of a call to $scope.$digest(). Assume that you change a $scope model in a handler function through the ng-click directive. In that case AngularJS automatically triggers a $digest cycle by calling $digest().In addition to ng-click, there are several other built-in directives/services that let you change models (e.g. ng-model, $timeout, etc) and automatically trigger a $digest cycle. The rough implementation of $digest looks like this.

Scope.prototype.$digest = function() {
      var dirty;
      do {
          dirty = this.$$digestOnce();
      } while (dirty);
}
Scope.prototype.$$digestOnce = function() {
   var self = this;
   var newValue, oldValue, dirty;
   _.forEach(this.$$watchers, function(watcher) {
          newValue = watcher.watchFn(self);
          oldValue = watcher.last;   // It just remembers the last value for dirty checking
          if (newValue !== oldValue) { //Dirty checking of References 
   // For Deep checking the object , code of Value     
   // based checking of Object should be implemented here
             watcher.last = newValue;
             watcher.listenerFn(newValue,
                  (oldValue === initWatchVal ? newValue : oldValue),
                   self);
          dirty = true;
          }
     });
   return dirty;
 };

If we use JavaScript’s setTimeout() function to update a scope model, Angular has no way of knowing what you might change. In this case it’s our responsibility to call $apply() manually, which triggers a $digest cycle. Similarly, if you have a directive that sets up a DOM event listener and changes some models inside the handler function, you need to call $apply() to ensure the changes take effect. The big idea of $apply is that we can execute some code that isn't aware of Angular, that code may still change things on the scope. If we wrap that code in $apply , it will take care of calling $digest(). Rough implementation of $apply().

Scope.prototype.$apply = function(expr) {
       try {
         return this.$eval(expr); //Evaluating code in the context of Scope
       } finally {
         this.$digest();
       }
};

This won't do what you are expecting:

<img src="image1.gif" alt="image2.gif" />

The ALT attribute is text-only--it won't do anything special if you give it an image URL.

If you want to initially display a low res image, then replace it with a high res image, you could do some javascript coding to swap out the images. Or, perhaps load the image into a div which has a background pattern filled with the low res image. Then, when the high res image loads, it'll load overtop the background.

Unfortunately, there's no direct way to do this.

Your second attempt will create a link to image2, but actually display image1.

<a href="image2.gif" ><img src="image1.gif"/></a>

If you want to popup a higher res version, @Sam's suggestion is a good idea.

This CSS might work for you (it works for me in Firefox 3):

<html>
<head>
    <style>
        .lowres { background-image: url('low-res.png');}
    </style>
</head>
<body>
    <div class="lowres" style="height:500px; width:500px">
        <img src="hi-res.png" />
    </div>
</body>
</html>

In that example, you have to set the div height/width to that of the image. It will actually load both images simultaneously, but presuming the low-res one loads quick, you might see it first while the hi-res image downloads.

IntelliJ 2019 community edition has line number by default. If you want to show or hide line numbers, go to the following settings to change the appearance.

go to ? File ? Setting ? Editor ? General ? Appearance ? [Check] Show line numbers

Here's one more option by using list comprehensions on files;

lines = [line.rstrip() for line in open('file.txt')]

This should be more efficient way as the most of the work is done inside the Python interpreter.

I found that the only option that worked for me was

font-size:0;

I was also using overflow and white-space: nowrap; float: left; seems to mess things up

EDIT : 31/10/2017

The same code/approach will work for Asp.Net Core 2.0 as well. The major difference is, In asp.net core, both web api controllers and Mvc controllers are merged together to single controller model. So your return type might be IActionResult or one of it's implementation (Ex :OkObjectResult)

Use

contentType:"application/json"

You need to use JSON.stringify method to convert it to JSON string when you send it,

And the model binder will bind the json data to your class object.

The below code will work fine (tested)

$(function () {
    var customer = {contact_name :"Scott",company_name:"HP"};
    $.ajax({
        type: "POST",
        data :JSON.stringify(customer),
        url: "api/Customer",
        contentType: "application/json"
    });
});

Result

contentType property tells the server that we are sending the data in JSON format. Since we sent a JSON data structure,model binding will happen properly.

If you inspect the ajax request's headers, you can see that the Content-Type value is set as application/json.

If you do not specify contentType explicitly, It will use the default content type which is application/x-www-form-urlencoded;

Edit on Nov 2015 to address other possible issues raised in comments

Posting a complex object

Let's say you have a complex view model class as your web api action method parameter like this

public class CreateUserViewModel
{
   public int Id {set;get;}
   public string Name {set;get;}  
   public List<TagViewModel> Tags {set;get;}
}
public class TagViewModel
{
  public int Id {set;get;}
  public string Code {set;get;}
}

and your web api end point is like

public class ProductController : Controller
{
    [HttpPost]
    public CreateUserViewModel Save([FromBody] CreateUserViewModel m)
    {
        // I am just returning the posted model as it is. 
        // You may do other stuff and return different response.
        // Ex : missileService.LaunchMissile(m);
        return m;
    }
}

At the time of this writing, ASP.NET MVC 6 is the latest stable version and in MVC6, Both Web api controllers and MVC controllers are inheriting from Microsoft.AspNet.Mvc.Controller base class.

To send data to the method from client side, the below code should work fine

//Build an object which matches the structure of our view model class
var model = {
    Name: "Shyju",
    Id: 123,
    Tags: [{ Id: 12, Code: "C" }, { Id: 33, Code: "Swift" }]
};

$.ajax({
    type: "POST",
    data: JSON.stringify(model),
    url: "../product/save",
    contentType: "application/json"
}).done(function(res) {       
    console.log('res', res);
    // Do something with the result :)
});

Model binding works for some properties, but not all ! Why ?

If you do not decorate the web api method parameter with [FromBody] attribute

[HttpPost]
public CreateUserViewModel Save(CreateUserViewModel m)
{
    return m;
}

And send the model(raw javascript object, not in JSON format) without specifying the contentType property value

$.ajax({
    type: "POST",
    data: model,
    url: "../product/save"
}).done(function (res) {
     console.log('res', res);
});

Model binding will work for the flat properties on the model, not the properties where the type is complex/another type. In our case, Id and Name properties will be properly bound to the parameter m, But the Tags property will be an empty list.

The same problem will occur if you are using the short version, $.post which will use the default Content-Type when sending the request.

$.post("../product/save", model, function (res) {
    //res contains the markup returned by the partial view
    console.log('res', res);
});

I was facing same issue in my exercise. Although not related, yet might give some reference. I didn't get any error once I placed addition_result = 0 inside function. Hope it helps! Apologize if this answer is not in context.

user_input = input("Enter multiple values separated by comma > ")

def add_numbers(num_list):
    addition_result = 0
    for i in num_list:
        addition_result = addition_result + i
    print(addition_result)

add_numbers(user_input)

I needed either: both -alpha background and -flatten, or -fill.

I made a new PNG with a transparent background and a red dot in the middle.

convert image.png -background green -alpha off green.png failed: it produced an image with black background

convert image.png -background green -alpha background -flatten green.png produced an image with the correct green background.

Of course, with another file that I renamed image.png, it failed to do anything. For that file, I found that the color of the transparent pixels was "#d5d5d5" so I filled that color with green:

convert image.png -fill green -opaque "#d5d5d5" green.png replaced the transparent pixels with the correct green.

In Xcode 6.3 and later (including Xcode 7 and 8), console output appears in the Debug area at the bottom of the playground window (similar to where it appears in a project). To show it:

• Menu: View > Debug Area > Show Debug Area (??Y)

• Click the middle button of the workspace-layout widget in the toolbar

  

• Click the triangle next to the timeline at the bottom of the window

  

Anything that writes to the console, including Swift's print statement (renamed from println in Swift 2 beta) shows up there.

In earlier Xcode 6 versions (which by now you probably should be upgrading from anyway), show the Assistant editor (e.g. by clicking the little circle next to a bit in the output area). Console output appears there.

Use the widget Wrap.

For Column like behavior try:

  return Wrap(
          direction: Axis.vertical,
          spacing: 10,
          children: <Widget>[...],);

For Row like behavior try:

  return Wrap(
          direction: Axis.horizontal,
          spacing: 10,
          children: <Widget>[...],);

For more information: Wrap (Flutter Widget)

If you need to do that on multiple sheets, and multiple columns in each sheet, here is how you can iterate through all of them:

// Auto size columns for each worksheet
foreach ($objPHPExcel->getWorksheetIterator() as $worksheet) {

    $objPHPExcel->setActiveSheetIndex($objPHPExcel->getIndex($worksheet));

    $sheet = $objPHPExcel->getActiveSheet();
    $cellIterator = $sheet->getRowIterator()->current()->getCellIterator();
    $cellIterator->setIterateOnlyExistingCells(true);
    /** @var PHPExcel_Cell $cell */
    foreach ($cellIterator as $cell) {
        $sheet->getColumnDimension($cell->getColumn())->setAutoSize(true);
    }
}

You can easily send the email with HTML content via PHP. Use the following script.

<?php
$to = '[email protected]';
$subject = "Send HTML Email Using PHP";

$htmlContent = '
<html>
<body>
    <h1>Send HTML Email Using PHP</h1>
    <p>This is a HTMl email using PHP by CodexWorld</p>
</body>
</html>';

// Set content-type header for sending HTML email
$headers = "MIME-Version: 1.0" . "\r\n";
$headers .= "Content-type:text/html;charset=UTF-8" . "\r\n";

// Additional headers
$headers .= 'From: CodexWorld<[email protected]>' . "\r\n";
$headers .= 'Cc: [email protected]' . "\r\n";
$headers .= 'Bcc: [email protected]' . "\r\n";

// Send email
if(mail($to,$subject,$htmlContent,$headers)):
    $successMsg = 'Email has sent successfully.';
else:
    $errorMsg = 'Email sending fail.';
endif;
?>

Source code and live demo can be found from here - Send Beautiful HTML Email using PHP

You could use a variable table, like this:

declare @num int

set @num = 1

declare @results table ( val int )

while (@num < 6)
begin
  insert into @results ( val ) values ( @num )
  set @num = @num + 1
end

select val from @results

In .Net, you cannot assign a null value to an int or any other struct. Instead, use a Nullable<int>, or int? for short:

int? value = 0;

if (value == 0)
{
    value = null;
}

Further Reading

• Nullable Types (C# Programming Guide)

Hash-Map stores the (key,value) pair as the Map.Entry Type.As you know that Hash-Map uses Linked Hash-Map(In case Collision occurs). Therefore each Node in the Bucket of Hash-Map is of Type Map.Entry. So whenever you iterate through the Hash-Map you will get Nodes of Type Map.Entry.

Now in your example when you are iterating through the Hash-Map, you will get Map.Entry Type(Which is Interface), To get the Key and Value from this Map.Entry Node Object, interface provided methods like getValue(), getKey() etc. So as per the code, In your Object you are adding all operators JButtons viz (+,-,/,*,=).

Valid answer from this thread was the right answer for my special case. Specify the ORM folder path for datanucleus certainly reduce the java path compile.

https://stackoverflow.com/a/1219427/1469481

y.tolist().count(val)

with val 0 or 1

Since a python list has a native function count, converting to list before using that function is a simple solution.

Looking at your own answer @Bog, I think you want;

$plugin_dir_path = dirname(__FILE__);

A signed CRX file has a header that will cause most/all unzippers to barf. This is not the easiest way to go about it, but here's how to do it from a bash command line.

The basic idea is to find where the original unsigned zipfile begins, then copy the CRX file to a zip file but exclude the CRX header.

1. hexdump -C the_extension.crx | more
2. Look in the output for the start of the zip file, which are the ASCII bytes "PK". In the sample I tried, the PK was at offset 0x132. (From reading the CRX spec, I think this number will vary from file to file because of different signature lengths.) That number is what we'll use in the next step.
3. dd if=the_extension.crx of=the_extension.zip bs=1 skip=0x132 (For the skip parameter, substitute the offset you found in the previous step.)
4. Now unzip the .zip that you just created.
5. Fiddle with the files in the unzipped directory, then either install the unsigned/unpacked extension into your Chrome installation, or else repackage it just as you would any other Chrome extension.

I'm sure that there is a more concise way to do this. Bash experts, please improve on my answer.

You've tried alot. And I feel for you. Here is an idea. I kinda followed everything you tried. The mental note I have in my head goes like this: "When Sql Server won't connect when you've tried everything, wire up your firewall rules by the program, not the port"

I know you said you disabled the firewall. But something is telling me to give this a try anyways.

I think you have to open the firewall "by program", and not by port.

http://technet.microsoft.com/en-us/library/cc646023.aspx

To add a program exception to the firewall using the Windows Firewall item in Control Panel.


On the Exceptions tab of the Windows Firewall item in Control Panel, click Add a program.


Browse to the location of the instance of SQL Server that you want to allow through the firewall, for example C:\Program Files\Microsoft SQL Server\MSSQL11.<instance_name>\MSSQL\Binn, select sqlservr.exe, and then click Open.


 Click OK.

EDIT..........

http://msdn.microsoft.com/en-us/library/ms190479.aspx

I'm a little cloudy on which "program" you're trying to use on SQLB?

Is it SSMS on SQLB? Or a client program on SQLB ?

EDIT...........

No idea if this will help. But I use this to ping "ports" ... and something that is outside of the SSMS world.

http://www.microsoft.com/en-us/download/details.aspx?id=24009

That error means that the you are trying to create a new ServerSocket on a port already in use by another ServerSocket. So try to make your application closing all sockets and connections you know about and be sure your application is completely terminated. Also check if there is another proces you launched by your program.

I had same issue. No need to re install.

In Netbeans 6.0 , Find RunTime -> Servers - > Add server -> select Tomcat install 'root' directory

In Netbeans 7.x -> Tools -> Servers-> Add server -> select Tomcat install 'root' directory

Here is in Netbeans Wiki.

http://wiki.netbeans.org/AddExternalTomcat

Hey now you can give to body background image

and set the background-position:center center;

as like this

body{
background:url('../img/some.jpg') no-repeat center center;
min-height:100%;
}

I experienced this after updating to Windows 10 Fall Creators edition version 1709. None of the solutions above worked for me. I was able to fix the error this way:

1. Go to “Control Panel” > “Administrative Tools” > “IIS Manager”.
2. Choose “Change .NET Framework Version” from the “Actions” in the right margin.
3. I chose the latest version shown and clicked “OK”.

If IIS Manager is not available under Administrative Tools, you can enable it this way:

1. Press the Windows key and type "Turn Windows Features On or Off" then select the search result.
2. In dialog that appears, check the box by “Internet Information Services” and click OK.

Here's a multiple-level sort method. I'm including a snippet from an Angular JS module, but you can accomplish the same thing by scoping the sort keys objects such that your sort function has access to them. You can see the full module at Plunker.

$scope.sortMyData = function (a, b)
{
  var retVal = 0, key;
  for (var i = 0; i < $scope.sortKeys.length; i++)
  {
    if (retVal !== 0)
    {
      break;
    }
    else
    {
      key = $scope.sortKeys[i];
      if ('asc' === key.direction)
      {
        retVal = (a[key.field] < b[key.field]) ? -1 : (a[key.field] > b[key.field]) ? 1 : 0;
      }
      else
      {
        retVal = (a[key.field] < b[key.field]) ? 1 : (a[key.field] > b[key.field]) ? -1 : 0;
      }
    }
  }
  return retVal;
};

I faced the same problem,Eclipse splash screen for a second and it disappears.Then i noticed due to auto update of java there are two java version installed in my system. when i uninstalled one eclipse started working.

Thanks you..

Just to comment on the DOMAttrModified event listener browser support:

Cross-browser support

These events are not implemented consistently across different browsers, for example:

• IE prior to version 9 didn't support the mutation events at all and does not implement some of them correctly in version 9 (for example, DOMNodeInserted)

• WebKit doesn't support DOMAttrModified (see webkit bug 8191 and the workaround)

• "mutation name events", i.e. DOMElementNameChanged and DOMAttributeNameChanged are not supported in Firefox (as of version 11), and probably in other browsers as well.

Source: https://developer.mozilla.org/en-US/docs/Web/Guide/Events/Mutation_events

To adjust the length of the samples:

set key samplen X

(default is 4)

To adjust the vertical spacing of the samples:

set key spacing X

(default is 1.25)

and (for completeness), to adjust the fontsize:

set key font "<face>,<size>"

(default depends on the terminal)

And of course, all these can be combined into one line:

set key samplen 2 spacing .5 font ",8"

Note that you can also change the position of the key using set key at <position> or any one of the pre-defined positions (which I'll just defer to help key at this point)

Another git log command. This one with fixed-width columns:

git log --graph --pretty=format:"%x09%h | %<(10,trunc)%cd |%<(25,trunc)%d | %s" --date=short

The easiest way for me to understand is to talk about whether you are calculating a statistic for each column (axis = 0) or each row (axis = 1). If you calculate a statistic, say a mean, with axis = 0 you will get that statistic for each column. So if each observation is a row and each variable is in a column, you would get the mean of each variable. If you set axis = 1 then you will calculate your statistic for each row. In our example, you would get the mean for each observation across all of your variables (perhaps you want the average of related measures).

axis = 0: by column = column-wise = along the rows

axis = 1: by row = row-wise = along the columns

You can create it easily:

$structure = './depth1/depth2/depth3/';
if (!mkdir($structure, 0, true)) {
die('Failed to create folders...');
}

Using awk:

export INDEX=2
export VALUE=bar

awk -F, '$'$INDEX' ~ /^'$VALUE'$/ {print}' inputfile.csv

Edit: As per Dennis Williamson's excellent comment, this could be much more cleanly (and safely) written by defining awk variables using the -v switch:

awk -F, -v index=$INDEX -v value=$VALUE '$index == value {print}' inputfile.csv

Jeez...with variables, and everything, awk is almost a real programming language...

I was able to get it to work by following these instructions.

• Download the sample code

• Unzip it to a new location

• Open ~\tesseract-samples-master\src\Tesseract.Samples.sln (I used Visual Studio 2017)

• Install the Tesseract NuGet package for that project (or uninstall/reinstall as I had to)

• Uncomment the last two meaningful lines in Tesseract.Samples.Program.cs: Console.Write("Press any key to continue . . . "); Console.ReadKey(true);

• Run (hit F5)

• You should get this windows console output

This question was already asked on https://tex.stackexchange.com/questions/10684/vertical-space-in-lists. The highest voted answer also mentioned the enumitem package (here answered by Stefan), but I also like this one, which involves creating your own itemizing environment instead of loading a new package:

\newenvironment{myitemize}
{ \begin{itemize}
    \setlength{\itemsep}{0pt}
    \setlength{\parskip}{0pt}
    \setlength{\parsep}{0pt}     }
{ \end{itemize}                  } 

Which should be used like this:

\begin{myitemize} 
  \item one 
  \item two 
  \item three 
\end{myitemize}

Source: https://tex.stackexchange.com/a/136050/12065

Click “Default levels” right next to filter and do make sure that "Info" is checked.

Please see screenshot:

There is no compiler independent way of doing this, as neither the C (nor the C++) standards say that the floating point math types must support NAN or INF.

Edit: I just checked the wording of the C++ standard, and it says that these functions (members of the templated class numeric_limits):

quiet_NaN() 
signalling_NaN()

wiill return NAN representations "if available". It doesn't expand on what "if available" means, but presumably something like "if the implementation's FP rep supports them". Similarly, there is a function:

infinity() 

which returns a positive INF rep "if available".

These are both defined in the <limits> header - I would guess that the C standard has something similar (probably also "if available") but I don't have a copy of the current C99 standard.

Edit Jan 2021: The React Native docs currently recommend React Native WebView:

<WebView
    originWhitelist={['*']}
    source={{ html: '<p>Here I am</p>' }}
/>

https://github.com/react-native-webview/react-native-webview

Edit March 2017: the html prop has been deprecated. Use source instead:

<WebView source={{html: '<p>Here I am</p>'}} />

https://facebook.github.io/react-native/docs/webview.html#html

Thanks to Justin for pointing this out.

Edit Feb 2017: the PR was accepted a while back, so to render HTML in React Native, simply:

<WebView html={'<p>Here I am</p>'} />

Original Answer:

I don't think this is currently possible. The behavior you're seeing is expected, since the Text component only outputs... well, text. You need another component that outputs HTML - and that's the WebView.

Unfortunately right now there's no way of just directly setting the HTML on this component:

https://github.com/facebook/react-native/issues/506

However I've just created this PR which implements a basic version of this feature so hopefully it'll land in some form soonish.

You can do it if you start from the model

php artisan make:model Todo -mcr

if you run php artisan make:model --help you can see all the available options

-m, --migration Create a new migration file for the model.
-c, --controller Create a new controller for the model.
-r, --resource Indicates if the generated controller should be a resource controller

Update

As mentioned in the comments by @arun in newer versions of laravel > 5.6 it is possible to run following command:

php artisan make:model Todo -a

-a, --all Generate a migration, factory, and resource controller for the model

if you use cast, that is, (int)SomeDouble you will truncate the fractional part. That is, if SomeDouble were 4.9999 the result would be 4, not 5. Converting to int doesn't round the number. If you want rounding use Math.Round

Expressions:

• Expressions are formed by combining objects and operators.
• An expression has a value, which has a type.
• Syntax for a simple expression:<object><operator><object>

2.0 + 3 is an expression which evaluates to 5.0 and has a type float associated with it.

Statements

Statements are composed of expression(s). It can span multiple lines.

When you get the width and height of a resized image Get width of a resized image after UIViewContentModeScaleAspectFit, you can resize your imageView:

imageView.frame = CGRectMake(0, 0, resizedWidth, resizedHeight);
imageView.center = imageView.superview.center;

I haven't checked if it works, but I think all should be OK

For recent SQL:

select * from v$sql

For history:

select * from dba_hist_sqltext

Try to Use:

select * from sys.objects where type='tr' and name like '%_Insert%'

Right and Left shift work on same way here is How Right Shift works; The Right Shift: The right shift operator, >>, shifts all of the bits in a value to the right a specified number of times. Its general form:

value >> num

Here, num specifies the number of positions to right-shift the value in value. That is, the >> moves all of the bits in the specified value to the right the number of bit positions specified by num. The following code fragment shifts the value 32 to the right by two positions, resulting in a being set to 8:

int a = 32;
a = a >> 2; // a now contains 8

When a value has bits that are “shifted off,” those bits are lost. For example, the next code fragment shifts the value 35 to the right two positions, which causes the two low-order bits to be lost, resulting again in a being set to 8.

int a = 35;
a = a >> 2; // a still contains 8

Looking at the same operation in binary shows more clearly how this happens:

00100011 35 >> 2
00001000 8

Each time you shift a value to the right, it divides that value by two—and discards any remainder. You can take advantage of this for high-performance integer division by 2. Of course, you must be sure that you are not shifting any bits off the right end. When you are shifting right, the top (leftmost) bits exposed by the right shift are filled in with the previous contents of the top bit. This is called sign extension and serves to preserve the sign of negative numbers when you shift them right. For example, –8 >> 1 is –4, which, in binary, is

11111000 –8 >>1
11111100 –4

It is interesting to note that if you shift –1 right, the result always remains –1, since sign extension keeps bringing in more ones in the high-order bits. Sometimes it is not desirable to sign-extend values when you are shifting them to the right. For example, the following program converts a byte value to its hexadecimal string representation. Notice that the shifted value is masked by ANDing it with 0x0f to discard any sign-extended bits so that the value can be used as an index into the array of hexadecimal characters.

// Masking sign extension.
class HexByte {
  static public void main(String args[]) {
    char hex[] = {
      '0', '1', '2', '3', '4', '5', '6', '7',
      '8', '9', 'a', 'b', 'c', 'd', 'e', 'f'
    };
  byte b = (byte) 0xf1;
 System.out.println("b = 0x" + hex[(b >> 4) & 0x0f] + hex[b & 0x0f]);
}
}

Here is the output of this program:

b = 0xf1

It also might be that you haven't declared you Dependency Injected service, as a provider in the component that you injected it to. That was my case :)

describe may give you everything you want otherwise you can perform aggregations using groupby and pass a list of agg functions: http://pandas.pydata.org/pandas-docs/stable/groupby.html#applying-multiple-functions-at-once

In [43]:

df.describe()

Out[43]:

       shopper_num is_martian  number_of_items  count_pineapples
count      14.0000         14        14.000000                14
mean        7.5000          0         3.357143                 0
std         4.1833          0         6.452276                 0
min         1.0000      False         0.000000                 0
25%         4.2500          0         0.000000                 0
50%         7.5000          0         0.000000                 0
75%        10.7500          0         3.500000                 0
max        14.0000      False        22.000000                 0

[8 rows x 4 columns]

Note that some columns cannot be summarised as there is no logical way to summarise them, for instance columns containing string data

As you prefer you can transpose the result if you prefer:

In [47]:

df.describe().transpose()

Out[47]:

                 count      mean       std    min   25%  50%    75%    max
shopper_num         14       7.5    4.1833      1  4.25  7.5  10.75     14
is_martian          14         0         0  False     0    0      0  False
number_of_items     14  3.357143  6.452276      0     0    0    3.5     22
count_pineapples    14         0         0      0     0    0      0      0

[4 rows x 8 columns]

I was looking for the same issue, and imho the pretty solution is :

def str2bool(v):
  return v.lower() in ("yes", "true", "t", "1")

and using that to parse the string to boolean as suggested above.

$(function() {

$('#clickMe').click(function(event) {
    var mytext = $('#myText').val();

    $('<div id="dialog">'+mytext+'</div>').appendTo('body');        
    event.preventDefault();

        $("#dialog").dialog({                   
            width: 600,
            modal: true,
            close: function(event, ui) {
                $("#dialog").hide();
                }
            });
    }); //close click
});

Better to use .hide() instead of .remove(). With .remove() it returns undefined if you have pressed the link once, then close the modal and if you press the modal link again, it returns undefined with .remove.

With .hide() it doesnt and it works like a breeze. Ty for the snippet in the first hand!

nameContent only exists within the first() function, as you defined it within the first() function.

To make its scope broader, define it outside of the functions:

var nameContent;

function first(){
    nameContent=document.getElementById('full_name').value;
}

function second() {
    first();
    y=nameContent; alert(y);
}
second();

A slightly better approach would be to return the value, as global variables get messy very quickly:

function getFullName() {
  return document.getElementById('full_name').value;
}

function doStuff() {
  var name = getFullName();

  alert(name);
}

doStuff();

For pyautogui users:

import pyautogui
screenshot = pyautogui.screenshot()

In Java you can't. Interface has to do with methods and signature, it does not have to do with the internal state of an object -- that is an implementation question. And this makes sense too -- I mean, simply because certain attributes exist, it does not mean that they have to be used by the implementing class. getHeight could actually point to the width variable (assuming that the implementer is a sadist).

(As a note -- this is not true of all languages, ActionScript allows for declaration of pseudo attributes, and I believe C# does too)

For the image that is not showing up. Open the image in the Image editor and check the type you are probably name it as "gif" but its saved in a different format that's one reason that the browser is unable to render it and it is not showing.
For the image stretching issue please specify the actual width and height dimensions in #banner instead of width: 100%; height: 200px that you have specified.

Program Debug Database file (pdb) is a file format by Microsoft for storing debugging information.

When you build a project using Visual Studio or command prompt the compiler creates these symbol files.

Check Microsoft Docs

Dave - any luck finding a solution to the browser problem? Is there a way to force a refresh?

As for the original problem, try the following when initializing the form:

def __init__(self, *args, **kwargs):
  super(MyForm, self).__init__(*args, **kwargs)   
  self.base_fields['MyChoiceField'].initial = initial_value

if we are going to implement it then we can can use the below algorithm :--

1. While there are still tokens to be read in,

   1.1 Get the next token. 1.2 If the token is:

   1.2.1 A number: push it onto the value stack.

   1.2.2 A variable: get its value, and push onto the value stack.

   1.2.3 A left parenthesis: push it onto the operator stack.

   1.2.4 A right parenthesis:

    1 While the thing on top of the operator stack is not a 
      left parenthesis,
        1 Pop the operator from the operator stack.
        2 Pop the value stack twice, getting two operands.
        3 Apply the operator to the operands, in the correct order.
        4 Push the result onto the value stack.
    2 Pop the left parenthesis from the operator stack, and discard it.
   

   1.2.5 An operator (call it thisOp):

    1 While the operator stack is not empty, and the top thing on the
      operator stack has the same or greater precedence as thisOp,
      1 Pop the operator from the operator stack.
      2 Pop the value stack twice, getting two operands.
      3 Apply the operator to the operands, in the correct order.
      4 Push the result onto the value stack.
    2 Push thisOp onto the operator stack.
   

2. While the operator stack is not empty, 1 Pop the operator from the operator stack. 2 Pop the value stack twice, getting two operands. 3 Apply the operator to the operands, in the correct order. 4 Push the result onto the value stack.

3. At this point the operator stack should be empty, and the value stack should have only one value in it, which is the final result.

The problem is that HTML doesn't recognize the escape character. You could work around that by using the single quotes for the HTML attribute and the double quotes for the onclick.

<a href="#" onclick='DoEdit("Preliminary Assessment \"Mini\""); return false;'>edit</a>

Another way is to use the -t switch to ssh:

ssh -t user@server "sudo script"

See man ssh:

 -t      Force pseudo-tty allocation.  This can be used to execute arbi-
         trary screen-based programs on a remote machine, which can be
         very useful, e.g., when implementing menu services.  Multiple -t
         options force tty allocation, even if ssh has no local tty.

In this case, you are thinking of the String comparing function "String".equals("some_text"). Chars do not need to use this function. Instead a standard == comparison operator will suffice.

private static int countNumChars(String s) {
    for(char c : s.toCharArray()){
        if (c == ' ') // your resulting outcome
    }
}

function pageLoad() is very dangerous to use in this situation. You could have events become wired multiple times. I would also stay away from .live() as it attaches to the document element and has to traverse the entire page (slow and crappy).

The best solution I have seen so far is to use jQuery .delegate() function on a wrapper outside the update panel and make use of bubbling. Other then that, you could always wire up the handlers using Microsoft's Ajax library which was designed to work with UpdatePanels.

If you are using ES6 you can:

var sample = [1, 2, 3]

var result = sample.filter(elem => elem !== 2)

/* output */
[1, 3]

Also take notice filter does not update the existing array it will return a new filtered array every time.

If it's not working why don't you try using jQuery's scrollTop method?

$("#id").scrollTop($("#id").scrollTop() + 100);

If you're looking to scroll smoothly you could use basic javascript setTimeout/setInterval function to make it scroll in increments of 1px over a set length of time.

The answer depends on the presence of other shapes, level of noise if any and invariance you want to provide for (e.g. rotation, scaling, etc). These requirements will define not only the algorithm but also required pre-procesing stages to extract features.

Template matching that was suggested above works well when shapes aren't rotated or scaled and when there are no similar shapes around; in other words, it finds a best translation in the image where template is located:

double minVal, maxVal;
Point minLoc, maxLoc;
Mat image, template, result; // template is your shape
matchTemplate(image, template, result, CV_TM_CCOEFF_NORMED);
minMaxLoc(result, &minVal, &maxVal, &minLoc, &maxLoc); // maxLoc is answer

Geometric hashing is a good method to get invariance in terms of rotation and scaling; this method would require extraction of some contour points.

Generalized Hough transform can take care of invariance, noise and would have minimal pre-processing but it is a bit harder to implement than other methods. OpenCV has such transforms for lines and circles.

In the case when number of shapes is limited calculating moments or counting convex hull vertices may be the easiest solution: openCV structural analysis

Steps to convert .py to .exe in Python 3.6

1. Install Python 3.6.
2. Install cx_Freeze, (open your command prompt and type pip install cx_Freeze.
3. Install idna, (open your command prompt and type pip install idna.
4. Write a .py program named myfirstprog.py.
5. Create a new python file named setup.py on the current directory of your script.
6. In the setup.py file, copy the code below and save it.
7. With shift pressed right click on the same directory, so you are able to open a command prompt window.
8. In the prompt, type python setup.py build
9. If your script is error free, then there will be no problem on creating application.
10. Check the newly created folder build. It has another folder in it. Within that folder you can find your application. Run it. Make yourself happy.

See the original script in my blog.

setup.py:

from cx_Freeze import setup, Executable

base = None    

executables = [Executable("myfirstprog.py", base=base)]

packages = ["idna"]
options = {
    'build_exe': {    
        'packages':packages,
    },    
}

setup(
    name = "<any name>",
    options = options,
    version = "<any number>",
    description = '<any description>',
    executables = executables
)

EDIT:

• be sure that instead of myfirstprog.py you should put your .pyextension file name as created in step 4;
• you should include each imported package in your .py into packages list (ex: packages = ["idna", "os","sys"])
• any name, any number, any description in setup.py file should not remain the same, you should change it accordingly (ex:name = "<first_ever>", version = "0.11", description = '' )
• the imported packages must be installed before you start step 8.

In JavaScript ES6:

function range(start, end) {_x000D_
  return Array(end - start + 1).fill().map((_, idx) => start + idx)_x000D_
}_x000D_
var result = range(9, 18); // [9, 10, 11, 12, 13, 14, 15, 16, 17, 18]_x000D_
console.log(result);

For completeness, here it is with an optional step parameter.

function range(start, end, step = 1) {_x000D_
  const len = Math.floor((end - start) / step) + 1_x000D_
  return Array(len).fill().map((_, idx) => start + (idx * step))_x000D_
}_x000D_
var result = range(9, 18, 0.83);_x000D_
console.log(result);

I would use range-inclusive from npm in an actual project. It even supports backwards steps, so that's cool.

The following works perfectly:-

if(isset($_POST['signup'])){
$username=mysqli_real_escape_string($connect,$_POST['username']);
$email=mysqli_real_escape_string($connect,$_POST['email']);
$pass1=mysqli_real_escape_string($connect,$_POST['pass1']);
$pass2=mysqli_real_escape_string($connect,$_POST['pass2']);

Now, the $connect is my variable containing my connection to the database. You only left out the connection variable. Include it and it shall work perfectly.

If at all possible, use generics. This includes:

• List instead of ArrayList
• Dictionary instead of HashTable

An elegant method would be to use the ~= compatible release operator according to PEP 440. In your case this would amount to:

package~=0.5.0

As an example, if the following versions exist, it would choose 0.5.9:

• 0.5.0
• 0.5.9
• 0.6.0

For clarification, each pair is equivalent:

~= 0.5.0
>= 0.5.0, == 0.5.*

~= 0.5
>= 0.5, == 0.*

You need to change in this markup

 <button type="button" class="navbar-toggle" data-toggle="collapse" data-target=".navbar collapse">

change the

data-target=".navbar collapse"

to

data-target=".navbar-collapse"

Reason : The value of data-target is a any class name of the associated nav div. In this case it is

<div class="collapse navbar-collapse">  <-- Look at here
     <ul class="nav navbar-nav navbar-right">
     .....
</div>

Js Fiddle Demo

First of all you need to create a surface once and keep it somewhere handy. Example:

var surface = dojox.gfx.createSurface(domNode, widthInPx, heightInPx);

domNode is usually an unadorned <div>, which is used as a placeholder for a surface.

You can clear everything on the surface in one go (all existing shape objects will be invalidated, don't use them after that):

surface.clear();

All surface-related functions and methods can be found in the official documentation on dojox.gfx.Surface. Examples of use can be found in dojox/gfx/tests/.

I'd set up your HTML like so:

<img src="../images/bottle.jpg" alt="bottle" class="thumbnails" id="bottle" />

Then use the following code:

<script>
var images = document.getElementsByTagName("img");
for(var i = 0; i < images.length; i++) {
    var image = images[i];
    image.onclick = function(event) {
         window.location.href = this.id + '.html';
    };
}
</script>

That assigns an onclick event handler to every image on the page (this may not be what you want, you can limit it further if necessary) that changes the current page to the value of the images id attribute plus the .html extension. It's essentially the pure Javascript implementation of @JanPöschko's jQuery answer.

I tried every answer but cleaning my npm cache worked..

steps:

1. Clean cache =====> npm cache clean force.
2. reinstall create-react-app =====> npm install create-react-app.
3. npm install.
4. npm start !!!

Change the rule on your <a> element from:

.navigation ul a {
    color: #000;
    display: block;
    padding: 0 65px 0 0;
    text-decoration: none;
}?

to

.navigation ul a {
    color: #000;
    display: block;
    padding: 0 65px 0 0;
    text-decoration: none;
    width:100%;
    text-align:center;
}?

Just add two new rules (width:100%; and text-align:center;). You need to make the anchor expand to take up the full width of the list item and then text-align center it.

jsFiddle example

setTimeout is part of the DOM defined by WHAT WG.

https://html.spec.whatwg.org/multipage/timers-and-user-prompts.html

The method you want is:—

handle = self.setTimeout( handler [, timeout [, arguments... ] ] )

Schedules a timeout to run handler after timeout milliseconds. Any arguments are passed straight through to the handler.

setTimeout(postinsql, 4000, topicId);

Apparently, extra arguments are supported in IE10. Alternatively, you can use setTimeout(postinsql.bind(null, topicId), 4000);, however passing extra arguments is simpler, and that's preferable.

Historical factoid: In days of VBScript, in JScript, setTimeout's third parameter was the language, as a string, defaulting to "JScript" but with the option to use "VBScript". https://docs.microsoft.com/en-us/previous-versions/windows/internet-explorer/ie-developer/platform-apis/aa741500(v%3Dvs.85)

I assume that you've run yum upgrade. That will in general update you to the newest minor release.

Your main resources for determining the version are /etc/redhat_release and lsb_release -a

I also encountered this issue.

My problem was that I renamed the folder my extension was in, so all I had to do was delete and reload the extension.

Thought this might help some people out there.

Struggled with this for a while, and not for the first time. In times past it usually was a configuration mismatch, but this time it wasn't.

This time it has turned out to be that Auto-Generate Binding Redirects was set to true in my application.

Indeed, if I set it to true in my library, then my library gets this error for types in the Microsoft.Reporting namespace, and if I set it to true in my application, then my application gets this error for types from my library.

Additionally, it seems that the value defaults to false for my library, but true for my application. So if I don't specify either one, my library builds fine but my application gets the error for my library. So, I have to specifically set it to false in my application or else I will get this error with no indication as to why.

I also find that I will get this message regardless of the setting if a project is not using sdk csproj. Once I convert to sdk csproj, then the setting makes a difference.

Also, in my case, this all seems to specifically have to do with the Microsoft.ReportingServices.ReportViewerControl.Winforms nuget package, which is in my root library.

From other post:

    find /c "string" file >NUL
    if %errorlevel% equ 1 goto notfound
        echo found
    goto done
    :notfound
        echo notfound
    goto done
    :done

Use the /i switch when you want case insensitive checking:

    find /i /c "string" file >NUL

Or something like: if not found write to file.

    find /c "%%P" file.txt  || ( echo %%P >> newfile.txt )

Or something like: if found write to file.

    find /c "%%P" file.txt  && ( echo %%P >> newfile.txt )

Or something like:

    find /c "%%P" file.txt  && ( echo found ) || ( echo not found )

The zoo package has the function of as.yearmon can help to convert.

require(zoo)

df$ym<-as.yearmon(df$date, "%Y %m")

You shoud follow the Angular docs and use $sce - $sce is a service that provides Strict Contextual Escaping services to AngularJS. Here is a docs: http://docs-angularjs-org-dev.appspot.com/api/ng.directive:ngBindHtmlUnsafe

Let's take an example with asynchroniously loading Eventbrite login button

In your controller:

someAppControllers.controller('SomeCtrl', ['$scope', '$sce', 'eventbriteLogin', 
  function($scope, $sce, eventbriteLogin) {

    eventbriteLogin.fetchButton(function(data){
      $scope.buttonLogin = $sce.trustAsHtml(data);
    });
  }]);

In your view just add:

<span ng-bind-html="buttonLogin"></span>

In your services:

someAppServices.factory('eventbriteLogin', function($resource){
   return {
        fetchButton: function(callback){
            Eventbrite.prototype.widget.login({'app_key': 'YOUR_API_KEY'}, function(widget_html){
                callback(widget_html);
            })
      }
    }
});

Isn't this what default constructors are for?

class MyModel
{

    public MyModel()
    {
        this.ReturnDate = DateTime.Now;
    }

    public date ReturnDate {get; set;};

}

Recent versions of the TortoiseSVN package can install a discrete svn.exe in addition to the one linked into the GUI binary. It is located in the same bin directory where the main program is installed. (If you have already installed TortoiseSVN, then rerun the installer, select Modify, and select command line tools for installation.)

just you need to pass true as an argument to IsHTML() function.

You can try this click event

private void dataGridView1_CellContentClick(object sender, DataGridViewCellEventArgs e)
{
    if (e.RowIndex >= 0)
    {
        DataGridViewRow row = this.dataGridView1.Rows[e.RowIndex];
        Eid_txt.Text = row.Cells["Employee ID"].Value.ToString();
        Name_txt.Text = row.Cells["First Name"].Value.ToString();
        Surname_txt.Text = row.Cells["Last Name"].Value.ToString();

I was having the same problem so i created this small function using jquery as jquery is part of every web application nowadays.

function fEqualizeHeight(sSelector) {
    var sObjects = $(sSelector);

    var iCount = sObjects.length;

    var iHeights = [];

    if (iCount > 0) {
        $(sObjects).each(function () {
            var sHeight = $(this).css('height');
            var iHeight = parseInt(sHeight.replace(/px/i,''));
            iHeights.push(iHeight);
        });

        iHeights.sort(function (a, b) {
            return a - b
        });

        var iMaxHeight = iHeights.pop();

        $(sSelector).each(function () {
            $(this).css({
                'height': iMaxHeight + 'px'
            });
        });
    }
}

You can call this function on page ready event

$(document).ready(function(){
   fEqualizeHeight('.columns');
});

I hope this works for you.

I had the same problem with Entity Framework database first on all CLOB columns.

As a workaround, I filled the text values with spaces to be at least 4000 in width in insert operations (did not come with any better solution).

If the branch is behind master, then delete the remote branch. Then go to local branch and run :

git pull origin master --rebase

Then, again push the branch to origin:

git push -u origin <branch-name>

For cases when we need to check from our own service/background-thread whether our app is in foreground or not. This is how I implemented it, and it works fine for me:

public class TestApplication extends Application implements Application.ActivityLifecycleCallbacks {

    public static WeakReference<Activity> foregroundActivityRef = null;

    @Override
    public void onActivityStarted(Activity activity) {
        foregroundActivityRef = new WeakReference<>(activity);
    }

    @Override
    public void onActivityStopped(Activity activity) {
        if (foregroundActivityRef != null && foregroundActivityRef.get() == activity) {
            foregroundActivityRef = null;
        }
    }

    // IMPLEMENT OTHER CALLBACK METHODS
}

Now to check from other classes, whether app is in foreground or not, simply call:

if(TestApplication.foregroundActivityRef!=null){
    // APP IS IN FOREGROUND!
    // We can also get the activity that is currently visible!
}

Update (as pointed out by SHS):

Do not forget to register for the callbacks in your Application class's onCreate method.

@Override
public void onCreate() {
    ...
    registerActivityLifecycleCallbacks(this);
}

You make a bog standard HTTP GET Request. You get a bog standard HTTP Response with an application/json content type and a JSON document as the body. You then parse this.

Since you have tagged this 'JavaScript' (I assume you mean "from a web page in a browser"), and I assume this is a third party service, you're stuck. You can't fetch data from remote URI in JavaScript unless explicit workarounds (such as JSONP) are put in place.

Oh wait, reading the documentation you linked to - JSONP is available, but you must say 'js' not 'json' and specify a callback: format=js&callback=foo

Then you can just define the callback function:

function foo(myData) { 
    // do stuff with myData
}

And then load the data:

var script = document.createElement('script');
script.type = 'text/javascript';
script.src = theUrlForTheApi;
document.body.appendChild(script);

I realize this is an old question but there is now a method called console.trace("Message") that will show you the line number and the chain of method calls that led to the log along with the message you pass it. More info on javascript logging tricks are available here at freecodecamp and this medium blog post

If the leading asterisk is a problem, I pipe the git branch as follows

git branch | awk -F ' +' '! /\(no branch\)/ {print $2}'

This also eliminates the '(no branch)' line that shows up when you have detached head.

An alternative to the answer SnareChops gave.

You can use .bind(this) in your template to have the same effect. It may not be as clean but it saves a couple of lines. I'm currently on angular 2.4.0

@Component({
  ...
  template: '<child [myCallback]="theCallback.bind(this)"></child>',
  directives: [ChildComponent]
})
export class ParentComponent {

  public theCallback(){
    ...
  }
}

@Component({...})
export class ChildComponent{
  //This will be bound to the ParentComponent.theCallback
  @Input()
  public myCallback: Function; 
  ...
}

I think the first way (multiple variables) is best, as you can otherwise end up with this (from an application that uses KnockoutJS), which is difficult to read in my opinion:

    var categories = ko.observableArray(),
        keywordFilter = ko.observableArray(),
        omniFilter = ko.observable('').extend({ throttle: 300 }),
        filteredCategories = ko.computed(function () {
            var underlyingArray = categories();
            return ko.utils.arrayFilter(underlyingArray, function (n) {
                return n.FilteredSportCount() > 0;
            });
        }),
        favoriteSports = ko.computed(function () {
            var sports = ko.observableArray();
            ko.utils.arrayForEach(categories(), function (c) {
                ko.utils.arrayForEach(c.Sports(), function (a) {
                    if (a.IsFavorite()) {
                        sports.push(a);
                    }
                });
            });
            return sports;
        }),
        toggleFavorite = function (sport, userId) {
            var isFavorite = sport.IsFavorite();

            var url = setfavouritesurl;

            var data = {
                userId: userId,
                sportId: sport.Id(),
                isFavourite: !isFavorite
            };

            var callback = function () {
                sport.IsFavorite(!isFavorite);
            };

            jQuery.support.cors = true;
            jQuery.ajax({
                url: url,
                type: "GET",
                data: data,
                success: callback
            });
        },
        hasfavoriteSports = ko.computed(function () {
            var result = false;
            ko.utils.arrayForEach(categories(), function (c) {
                ko.utils.arrayForEach(c.Sports(), function (a) {
                    if (a.IsFavorite()) {
                        result = true;
                    }
                });
            });
            return result;
        });

I have just found a really good example of how to do this here: http://developer.android.com/reference/android/webkit/WebView.html . You just need to change the setprogress from:

activity.setProgress(progress * 1000);

to

activity.setProgress(progress * 100);

Web services

SQL 2005+ supports native WebServices that you could almost use although I wouldn't suggest it, because of security risks you may face. Why did I say almost. Well Javascript is not SOAP native, so it would be a bit more complicated to actually make it. You'd have to send and receive SOAP via XmlHttpRequest. Check google for Javascript SOAP clients.

• http://msdn.microsoft.com/en-us/library/ms345123.aspx - SQL native WebServices
• http://www.google.com/search?q=javascript+soap - Google results for Javascript SOAP clients

_{All standard references below refers to N4659: March 2017 post-Kona working draft/C++17 DIS.}

Typedef declarations can, whereas alias declarations cannot, be used as initialization statements

But, with the first two non-template examples, are there any other subtle differences in the standard?

• Differences in semantics: none.
• Differences in allowed contexts: some⁽¹⁾.

^{(1) In addition to the examples of alias templates, which has already been mentioned in the original post.}

Same semantics

As governed by [dcl.typedef]/2 [extract, emphasis mine]

[dcl.typedef]/2 A typedef-name can also be introduced by an alias-declaration. The identifier following the using keyword becomes a typedef-name and the optional attribute-specifier-seq following the identifier appertains to that typedef-name. Such a typedef-name has the same semantics as if it were introduced by the typedef specifier. [...]

a typedef-name introduced by an alias-declaration has the same semantics as if it were introduced by the typedef declaration.

Subtle difference in allowed contexts

However, this does not imply that the two variations have the same restrictions with regard to the contexts in which they may be used. And indeed, albeit a corner case, a typedef declaration is an init-statement and may thus be used in contexts which allow initialization statements

// C++11 (C++03) (init. statement in for loop iteration statements).
for(typedef int Foo; Foo{} != 0;) {}

// C++17 (if and switch initialization statements).
if (typedef int Foo; true) { (void)Foo{}; }
//  ^^^^^^^^^^^^^^^ init-statement

switch(typedef int Foo; 0) { case 0: (void)Foo{}; }
//     ^^^^^^^^^^^^^^^ init-statement

// C++20 (range-based for loop initialization statements).
std::vector<int> v{1, 2, 3};
for(typedef int Foo; Foo f : v) { (void)f; }
//  ^^^^^^^^^^^^^^^ init-statement

for(typedef struct { int x; int y;} P;
//  ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ init-statement
    auto [x, y] : {P{1, 1}, {1, 2}, {3, 5}}) { (void)x; (void)y; }

whereas an alias-declaration is not an init-statement, and thus may not be used in contexts which allows initialization statements

// C++ 11.
for(using Foo = int; Foo{} != 0;) {}
//  ^^^^^^^^^^^^^^^ error: expected expression

// C++17 (initialization expressions in switch and if statements).
if (using Foo = int; true) { (void)Foo{}; }
//  ^^^^^^^^^^^^^^^ error: expected expression

switch(using Foo = int; 0) { case 0: (void)Foo{}; }
//     ^^^^^^^^^^^^^^^ error: expected expression

// C++20 (range-based for loop initialization statements).
std::vector<int> v{1, 2, 3};
for(using Foo = int; Foo f : v) { (void)f; }
//  ^^^^^^^^^^^^^^^ error: expected expression

I had the same issue on my React Native Project. Was not just that ADV Manager didn't show up on the menu but other tools where missing as well.

Everything was back to normal when I opened the project using Import project option instead of Open an Existing Android Studio project.

to work on a two section of a one long file simply use shortcut ( Ctrl + \ ) or click on split editor window while you are on selected Tab. the icon is on top-right of the VS Code.

In IntelliJ 14, the path to the settings for Auto Import has changed. The path is

IntelliJ IDEA->Preferences->Editor->General->Auto Import

then follow the instructions above, clicking Add unambiguous imports on the fly

I can't imagine why this wouldn't be set by default.

A more general approach:

if ( ($("body").hasClass("homepage") || $("body").hasClass("contact")) && (theLanguage == 'en-gb') )   {

       // Do something

}

I placed the button group inside the title, and then added a clearfix to the bottom.

<div class="panel-heading">
  <h4 class="panel-title">
    Panel header
    <div class="btn-group pull-right">
      <a href="#" class="btn btn-default btn-sm">## Lock</a>
      <a href="#" class="btn btn-default btn-sm">## Delete</a>
      <a href="#" class="btn btn-default btn-sm">## Move</a>
    </div>
  </h4>
  <div class="clearfix"></div>
</div>

I faced similar problems. The article that helped me solve similar issues is by MKyong and is here: ****https://www.mkyong.com/maven/how-to-install-maven-in-windows/**** It is very important to include in maven's path the file that contains the 'bin','boot', 'conf', 'lib' etc. file folders. For example, in my case, the correct path is: C:\Program Files\Apache Software Foundation\maven\apache-maven-3.5.0-bin\apache-maven-3.5.0

I have used POI.

If you use that, keep on eye those cell formatters: create one and use it several times instead of creating each time for cell, it isa huge memory consumption difference or large data.

This error occur when you try to load a component dynamically and:

1. The component you want to load is not routing module
2. The component is no in module entryComponents.

in routingModule

const routes: Routes = [{ path: 'confirm-component', component: ConfirmComponent,data: {}}]

or in module

entryComponents: [
ConfirmComponent
} 

To fix this error you can add a router to the component or add it to entryComponents of module.

1. Add a router to component.drawback of this approach is your component will be accessible with that url.
2. Add it to entryComponents. in this case your component will not have any url attached to and it will not be accessible with url.

The ArrayList class is a wrapper class for an array. It contains an inner array.

public ArrayList<T> {
    private Object[] array;
    private int size;
}

A LinkedList is a wrapper class for a linked list, with an inner node for managing the data.

public LinkedList<T> {
    class Node<T> {
        T data;
        Node next;
        Node prev;
    }
    private Node<T> first;
    private Node<T> last;
    private int size;
}

Note, the present code is used to show how the class may be, not the actual implementation. Knowing how the implementation may be, we can do the further analysis:

ArrayList is faster than LinkedList if I randomly access its elements. I think random access means "give me the nth element". Why ArrayList is faster?

Access time for ArrayList: O(1). Access time for LinkedList: O(n).

In an array, you can access to any element by using array[index], while in a linked list you must navigate through all the list starting from first until you get the element you need.

LinkedList is faster than ArrayList for deletion. I understand this one. ArrayList's slower since the internal backing-up array needs to be reallocated.

Deletion time for ArrayList: Access time + O(n). Deletion time for LinkedList: Access time + O(1).

The ArrayList must move all the elements from array[index] to array[index-1] starting by the item to delete index. The LinkedList should navigate until that item and then erase that node by decoupling it from the list.

LinkedList is faster than ArrayList for deletion. I understand this one. ArrayList's slower since the internal backing-up array needs to be reallocated.

Insertion time for ArrayList: O(n). Insertion time for LinkedList: O(1).

Why the ArrayList can take O(n)? Because when you insert a new element and the array is full, you need to create a new array with more size (you can calculate the new size with a formula like 2 * size or 3 * size / 2). The LinkedList just add a new node next to the last.

This analysis is not just in Java but in another programming languages like C, C++ and C#.

More info here:

• http://en.wikipedia.org/wiki/Array_data_structure
• http://en.wikipedia.org/wiki/Linked_list

Actually, this is the proper way to get what you want, unless you can use MS SQL 2014 (which finally enables custom format strings for date times).

To get yyyymm instead of yyyym, you can use this little trick:

select 
 right('0000' + cast(datepart(year, getdate()) as varchar(4)), 4)
 + right('00' + cast(datepart(month, getdate()) as varchar(2)), 2)

It's faster and more reliable than gettings parts of convert(..., 112).

KeyStore keyStore = KeyStore.getInstance(KeyStore.getDefaultType());
keyStore.load(new FileInputStream(new File(keyStoreFile)),
  keyStorePassword.toCharArray());

SSLConnectionSocketFactory socketFactory = new SSLConnectionSocketFactory(
  new SSLContextBuilder()
    .loadTrustMaterial(null, new TrustSelfSignedStrategy())
    .loadKeyMaterial(keyStore, keyStorePassword.toCharArray())
    .build(),
    NoopHostnameVerifier.INSTANCE);

HttpClient httpClient = HttpClients.custom().setSSLSocketFactory(
  socketFactory).build();

ClientHttpRequestFactory requestFactory = new HttpComponentsClientHttpRequestFactory(
  httpClient);
RestTemplate restTemplate = new RestTemplate(requestFactory);
MyRecord record = restTemplate.getForObject(uri, MyRecord.class);
LOG.debug(record.toString());

The short answer is "yes". A sample ldapsearch command to query an Active Directory server is:

ldapsearch \
    -x -h ldapserver.mydomain.com \
    -D "[email protected]" \
    -W \
    -b "cn=users,dc=mydomain,dc=com" \
    -s sub "(cn=*)" cn mail sn

This would connect to an AD server at hostname ldapserver.mydomain.com as user [email protected], prompt for the password on the command line and show name and email details for users in the cn=users,dc=mydomain,dc=com subtree.

See Managing LDAP from the Command Line on Linux for more samples. See LDAP Query Basics for Microsoft Exchange documentation for samples using LDAP queries with Active Directory.

I wanted to do this the angular (2/4) way, here is what I did:

<div [class.show]="visible" [class.in]="visible" class="modal fade" id="confirm-dialog-modal" role="dialog">
..
</div>`

Important things to note:

• visible is a variable (boolean) in the component which governs modal's visibility.
• show and in are bootstrap classes.

An example component & html

Component

@ViewChild('rsvpModal', { static: false }) rsvpModal: ElementRef;
..
@HostListener('document:keydown.escape', ['$event'])
  onEscapeKey(event: KeyboardEvent) {
    this.hideRsvpModal();
  }
..
  hideRsvpModal(event?: Event) {
    if (!event || (event.target as Element).classList.contains('modal')) {
      this.renderer.setStyle(this.rsvpModal.nativeElement, 'display', 'none');
      this.renderer.removeClass(this.rsvpModal.nativeElement, 'show');
      this.renderer.addClass(document.body, 'modal-open');
    }
  }
  showRsvpModal() {
    this.renderer.setStyle(this.rsvpModal.nativeElement, 'display', 'block');
    this.renderer.addClass(this.rsvpModal.nativeElement, 'show');
    this.renderer.removeClass(document.body, 'modal-open');
  }

Html

<!--S:RSVP-->
<div class="modal fade" #rsvpModal role="dialog" aria-labelledby="niviteRsvpModalTitle" (click)="hideRsvpModal($event)">
    <div class="modal-dialog modal-dialog-centered modal-dialog-scrollable" role="document">
        <div class="modal-content">
            <div class="modal-header">
                <h5 class="modal-title" id="niviteRsvpModalTitle">

                </h5>
                <button type="button" class="close" (click)="hideRsvpModal()" aria-label="Close">
                    <span aria-hidden="true">&times;</span>
                </button>
            </div>
            <div class="modal-body">

            </div>
            <div class="modal-footer">
                <button type="button" class="btn btn-secondary bg-white text-dark"
                    (click)="hideRsvpModal()">Close</button>
            </div>
        </div>
    </div>
</div>
<!--E:RSVP-->

RoboRealm vision software list mentions JHLabs and NeatVision among lots of other non-Java based libraries.

In jQuery UI's autocomplete widget (version 1.9.1) they use a slightly different regular expression (line 6753), here's the regular expression combined with bobince's approach.

RegExp.escape = function( value ) {
     return value.replace(/[\-\[\]{}()*+?.,\\\^$|#\s]/g, "\\$&");
}

Instead of using a PHP script, to read and flush the file, it's more neat to rewrite the header using .htaccess. This will keep a "nice" URL (myfile.pdf instead of download.php?myfile).

<FilesMatch "\.pdf$">
ForceType applicaton/octet-stream
Header set Content-Disposition attachment
</FilesMatch>

Also, it can be done dynamically like so...

<input [id]="input.id" [type]="input.type" [autofocus]="input.autofocus" />

Where input is

const input = {
  id: "my-input",
  type: "text",
  autofocus: true
};

This is another simpler solution to your question

pd.read_json(data)

where data is the str output from the following code

response = urlopen("https://data.nasa.gov/resource/y77d-th95.json")
json_data = response.read().decode('utf-8', 'replace')

String original = "hello world";
byte[] utf8Bytes = original.getBytes("UTF-8");

Great way of implementing Camera session in Swift 5, iOS 13

https://github.com/egzonpllana/CameraSession

Camera Session is an iOS app that tries to make the simplest possible way of implementation of AVCaptureSession.

Through the app you can find these camera session implemented:

• Native camera to take a picture or record a video.
• Native way of importing photos and videos.
• The custom way to select assets like photos and videos, with an option to select one or more assets from the Library.
• Custom camera to take a photo(s) or video(s), with options to hold down the button and record.
• Separated camera permission requests.

The custom camera features like torch and rotate camera options.

This worked for me

$(function() {
    $("#select option").each(function(i){
        alert($(this).text() + " : " + $(this).val());
    });
});

An "if" is not a loop. Just use the break inside the "if" and it will break out of the "while".

If you ever need to use genuine nested loops, Java has the concept of a labeled break. You can put a label before a loop, and then use the name of the label is the argument to break. It will break outside of the labeled loop.

There are a few ways to reach this goal. Basically you need an object which is extendable.

obj.a = type('Test', (object,), {})  
obj.a.b = 'fun'  

obj.b = lambda:None

class Test:
  pass
obj.c = Test()

Chris Beeley is rigth, you only need the proportions by column. Using your data is:

 your_matrix<-( 
               rbind(
                       c(23,234,324), 
                       c(34,534,12), 
                       c(56,324,124), 
                       c(34,234,124),
                       c(123,534,654)
                    )
                )

 barplot(prop.table(your_matrix, 2) )

Gives:

SELECT pg_size_pretty(pg_database_size('name of database'));

Will give you the total size of a particular database however I don't think you can do all databases within a server.

However you could do this...

DO
$$
DECLARE
r   RECORD;
db_size TEXT;
BEGIN
FOR r in
SELECT datname FROM pg_database
WHERE datistemplate = false
LOOP
db_size:= (SELECT pg_size_pretty(pg_database_size(r.datname)));

RAISE NOTICE 'Database:% , Size:%', r.datname , db_size;

END LOOP;
END;
$$

David Brabant's answer led me to what I needed, with this addition:

x.Stuffs | where { $_.Name -eq "Darts" } | Select -ExpandProperty Type

Since MVC 5 you can use the built in Attribute Routing package which supports a datetime type, which will accept anything that can be parsed to a DateTime.

e.g.

[GET("Orders/{orderDate:datetime}")]

More info here.

If you a running Jupyter/Ipython notebook and having problems using;

ax = df1.plot()

df2.plot(ax=ax)

Run the command inside of the same cell!! It wont, for some reason, work when they are separated into sequential cells. For me at least.

your panel class don't have a constructor that accepts a string

try change

RLS_strid_panel p = new RLS_strid_panel(namn1);

to

RLS_strid_panel p = new RLS_strid_panel();
p.setName1(name1);

Later versions of Safari allow you to Disable Cross-Origin Restrictions. Just enable the developer menu from Preferences >> Advanced, and select "Disable Cross-Origin Restrictions" from the develop menu.

If you want local only, then you only need to enable the developer menu, and select "Disable local file restrictions" from the develop menu.

It's not that you're actually getting extra precision - it's that the float didn't accurately represent the number you were aiming for originally. The double is representing the original float accurately; toString is showing the "extra" data which was already present.

For example (and these numbers aren't right, I'm just making things up) suppose you had:

float f = 0.1F;
double d = f;

Then the value of f might be exactly 0.100000234523. d will have exactly the same value, but when you convert it to a string it will "trust" that it's accurate to a higher precision, so won't round off as early, and you'll see the "extra digits" which were already there, but hidden from you.

When you convert to a string and back, you're ending up with a double value which is closer to the string value than the original float was - but that's only good if you really believe that the string value is what you really wanted.

Are you sure that float/double are the appropriate types to use here instead of BigDecimal? If you're trying to use numbers which have precise decimal values (e.g. money), then BigDecimal is a more appropriate type IMO.

Here's a short and sweet JavaScript function to fetch the session ID:

function session_id() {
    return /SESS\w*ID=([^;]+)/i.test(document.cookie) ? RegExp.$1 : false;
}

Or if you prefer a variable, here's a simple one-liner:

var session_id = /SESS\w*ID=([^;]+)/i.test(document.cookie) ? RegExp.$1 : false;

Should match the session ID cookie for PHP, JSP, .NET, and I suppose various other server-side processors as well.

To install or upgrade pip, download get-pip.py from the official site. Then run the following command:

sudo python get-pip.py 

and it will install pip for your python version which runs the script.

If you use PHP5 (And you should, given that PHP4 has been deprecated), you should use PDO, since this is slowly becoming the new standard. One (very) important benefit of PDO, is that it supports bound parameters, which makes for much more secure code.

You would connect through PDO, like this:

try {
  $db = new PDO('mysql:dbname=databasename;host=127.0.0.1', 'username', 'password');
} catch (PDOException $ex) {
  echo 'Connection failed: ' . $ex->getMessage();
}

(Of course replace databasename, username and password above)

You can then query the database like this:

$result = $db->query("select * from tablename");
foreach ($result as $row) {
  echo $row['foo'] . "\n";
}

Or, if you have variables:

$stmt = $db->prepare("select * from tablename where id = :id");
$stmt->execute(array(':id' => 42));
$row = $stmt->fetch();

If you need multiple connections open at once, you can simply create multiple instances of PDO:

try {
  $db1 = new PDO('mysql:dbname=databas1;host=127.0.0.1', 'username', 'password');
  $db2 = new PDO('mysql:dbname=databas2;host=127.0.0.1', 'username', 'password');
} catch (PDOException $ex) {
  echo 'Connection failed: ' . $ex->getMessage();
}

There is also the DateTime object if you want to go that way: http://www.php.net/manual/en/datetime.construct.php

From $http.get docs, the second parameter is a configuration object:

get(url, [config]);

Shortcut method to perform GET request.

You may change your code to:

$http.get('accept.php', {
    params: {
        source: link, 
        category_id: category
    }
});

Or:

$http({
    url: 'accept.php', 
    method: 'GET',
    params: { 
        source: link, 
        category_id: category
    }
});

As a side note, since Angular 1.6: .success should not be used anymore, use .then instead:

$http.get('/url', config).then(successCallback, errorCallback);

\b is a zero-width word boundary. Specifically:

Matches at the position between a word character (anything matched by \w) and a non-word character (anything matched by [^\w] or \W) as well as at the start and/or end of the string if the first and/or last characters in the string are word characters.

Example: .\b matches c in abc

\B is a zero-width non-word boundary. Specifically:

Matches at the position between two word characters (i.e the position between \w\w) as well as at the position between two non-word characters (i.e. \W\W).

Example: \B.\B matches b in abc

See regular-expressions.info for more great regex info

select * from person where DATE(dob) between '2011-01-01' and '2011-01-31'

Surprisingly such conversions are solutions to many problems in MySQL.

To add to this there's: http://www.oracle.com/technetwork/developer-tools/adf-mobile/overview/index.html

A Java & HTML5 Based Framework for Developing
Oracle ADF Mobile enables developers to build and extend enterprise applications for iOS and Android from a single code base. Based on a hybrid mobile architecture, ADF Mobile supports access to native device services, enables offline applications and protects enterprise investments from future technology shifts.

Intent eventIntentMessage =getPackageManager()
 .getLaunchIntentForPackage(Telephony.Sms.getDefaultSmsPackage(getApplicationContext));
startActivity(eventIntentMessage);

Here's a template-only way to do it (it's not maintaining the order, though). Plus, the result will be ordered as well, which is useful in most cases:

<select ng-model="orderProp" >
   <option ng-repeat="place in places | orderBy:'category' as sortedPlaces" data-ng-if="sortedPlaces[$index-1].category != place.category" value="{{place.category}}">
      {{place.category}}
   </option>
</select>

From: jQuery text truncation (read more style)

Try this:

var title = "This is your title";

var shortText = jQuery.trim(title).substring(0, 10)
    .split(" ").slice(0, -1).join(" ") + "...";

• Tested here

And you can also use a plugin:

• jQuery Expander Plugin

As a extension of String

String.prototype.trimToLength = function(m) {
  return (this.length > m) 
    ? jQuery.trim(this).substring(0, m).split(" ").slice(0, -1).join(" ") + "..."
    : this;
};

Use as

"This is your title".trimToLength(10);

The tikz package seems to have what you want.

\documentclass{article}
\usepackage{tikz}
\usetikzlibrary{snakes}

\begin{document}

  \begin{tikzpicture}[snake=zigzag, line before snake = 5mm, line after snake = 5mm]
    % draw horizontal line   
    \draw (0,0) -- (2,0);
    \draw[snake] (2,0) -- (4,0);
    \draw (4,0) -- (5,0);
    \draw[snake] (5,0) -- (7,0);

    % draw vertical lines
    \foreach \x in {0,1,2,4,5,7}
      \draw (\x cm,3pt) -- (\x cm,-3pt);

    % draw nodes
    \draw (0,0) node[below=3pt] {$ 0 $} node[above=3pt] {$   $};
    \draw (1,0) node[below=3pt] {$ 1 $} node[above=3pt] {$ 10 $};
    \draw (2,0) node[below=3pt] {$ 2 $} node[above=3pt] {$ 20 $};
    \draw (3,0) node[below=3pt] {$  $} node[above=3pt] {$  $};
    \draw (4,0) node[below=3pt] {$ 5 $} node[above=3pt] {$ 50 $};
    \draw (5,0) node[below=3pt] {$ 6 $} node[above=3pt] {$ 60 $};
    \draw (6,0) node[below=3pt] {$  $} node[above=3pt] {$  $};
    \draw (7,0) node[below=3pt] {$ n $} node[above=3pt] {$ 10n $};
  \end{tikzpicture}

\end{document}

I'm not too expert with tikz, but this does give a good timeline, which looks like:

try below code:

  >>> d2 = dict([('one',1), ('two', 2), ('three', 3)])
  >>> d2
      {'three': 3, 'two': 2, 'one': 1}

To kill a process tree recursively, use killtree():

#!/bin/bash

killtree() {
    local _pid=$1
    local _sig=${2:--TERM}
    kill -stop ${_pid} # needed to stop quickly forking parent from producing children between child killing and parent killing
    for _child in $(ps -o pid --no-headers --ppid ${_pid}); do
        killtree ${_child} ${_sig}
    done
    kill -${_sig} ${_pid}
}

if [ $# -eq 0 -o $# -gt 2 ]; then
    echo "Usage: $(basename $0) <pid> [signal]"
    exit 1
fi

killtree $@

You can use Newtonsoft.Json, it's a dependency of Microsoft.AspNet.Mvc.ModelBinding which is a dependency of Microsoft.AspNet.Mvc. So, you don't need to add a dependency in your project.json.

#using Newtonsoft.Json
....
JsonConvert.DeserializeObject(json);

Note, using a WebAPI controller you don't need to deal with JSON.

UPDATE ASP.Net Core 3.0

Json.NET has been removed from the ASP.NET Core 3.0 shared framework.

You can use the new JSON serializer layers on top of the high-performance Utf8JsonReader and Utf8JsonWriter. It deserializes objects from JSON and serializes objects to JSON. Memory allocations are kept minimal and includes support for reading and writing JSON with Stream asynchronously.

To get started, use the JsonSerializer class in the System.Text.Json.Serialization namespace. See the documentation for information and samples.

To use Json.NET in an ASP.NET Core 3.0 project:

• Add a package reference to Microsoft.AspNetCore.Mvc.NewtonsoftJson
• Update ConfigureServices to call AddNewtonsoftJson().

    services.AddMvc()
        .AddNewtonsoftJson();

Read Json.NET support in Migrate from ASP.NET Core 2.2 to 3.0 Preview 2 for more information.

Here's the nearly shortest possible solution to your question. The solution works in python 3.x. For python 2.x change the import to Tkinter rather than tkinter (the difference being the capitalization):

import tkinter as tk
#import Tkinter as tk  # for python 2
    
def create_window():
    window = tk.Toplevel(root)

root = tk.Tk()
b = tk.Button(root, text="Create new window", command=create_window)
b.pack()

root.mainloop()

This is definitely not what I recommend as an example of good coding style, but it illustrates the basic concepts: a button with a command, and a function that creates a window.

Update: I've published a full skeleton Angular 2 project with OAuth2 integration on Github that shows the directive mentioned below in action.

One way to do that would be through the use of a directive. Unlike Angular 2 components, which are basically new HTML tags (with associated code) that you insert into your page, an attributive directive is an attribute that you put in a tag that causes some behavior to occur. Docs here.

The presence of your custom attribute causes things to happen to the component (or HTML element) that you placed the directive in. Consider this directive I use for my current Angular2/OAuth2 application:

import {Directive, OnDestroy} from 'angular2/core';
import {AuthService} from '../services/auth.service';
import {ROUTER_DIRECTIVES, Router, Location} from "angular2/router";

@Directive({
    selector: '[protected]'
})
export class ProtectedDirective implements OnDestroy {
    private sub:any = null;

    constructor(private authService:AuthService, private router:Router, private location:Location) {
        if (!authService.isAuthenticated()) {
            this.location.replaceState('/'); // clears browser history so they can't navigate with back button
            this.router.navigate(['PublicPage']);
        }

        this.sub = this.authService.subscribe((val) => {
            if (!val.authenticated) {
                this.location.replaceState('/'); // clears browser history so they can't navigate with back button
                this.router.navigate(['LoggedoutPage']); // tells them they've been logged out (somehow)
            }
        });
    }

    ngOnDestroy() {
        if (this.sub != null) {
            this.sub.unsubscribe();
        }
    }
}

This makes use of an Authentication service I wrote to determine whether or not the user is already logged in and also subscribes to the authentication event so that it can kick a user out if he or she logs out or times out.

You could do the same thing. You'd create a directive like mine that checks for the presence of a necessary cookie or other state information that indicates that the user is authenticated. If they don't have those flags you are looking for, redirect the user to your main public page (like I do) or your OAuth2 server (or whatever). You would put that directive attribute on any component that needs to be protected. In this case, it might be called protected like in the directive I pasted above.

<members-only-info [protected]></members-only-info>

Then you would want to navigate/redirect the user to a login view within your app, and handle the authentication there. You'd have to change the current route to the one you wanted to do that. So in that case you'd use dependency injection to get a Router object in your directive's constructor() function and then use the navigate() method to send the user to your login page (as in my example above).

This assumes that you have a series of routes somewhere controlling a <router-outlet> tag that looks something like this, perhaps:

@RouteConfig([
    {path: '/loggedout', name: 'LoggedoutPage', component: LoggedoutPageComponent, useAsDefault: true},
    {path: '/public', name: 'PublicPage', component: PublicPageComponent},
    {path: '/protected', name: 'ProtectedPage', component: ProtectedPageComponent}
])

If, instead, you needed to redirect the user to an external URL, such as your OAuth2 server, then you would have your directive do something like the following:

window.location.href="https://myserver.com/oauth2/authorize?redirect_uri=http://myAppServer.com/myAngular2App/callback&response_type=code&client_id=clientId&scope=my_scope

Add the param declation at the top of ps1 file

test.ps1

param(
  # Our preferred encoding
  [parameter(Mandatory=$false)]
  [ValidateSet("UTF8","Unicode","UTF7","ASCII","UTF32","BigEndianUnicode")]
  [string]$Encoding = "UTF8"
)

write ("Encoding : {0}" -f $Encoding)

result

C:\temp> .\test.ps1 -Encoding ASCII
Encoding : ASCII

Here's another way of doing the code above using the openpyxl module that's compatible with xlsx. From what I've seen so far, it also keeps formatting.

from openpyxl import load_workbook
wb = load_workbook('names.xlsx')
ws = wb['SheetName']
ws['A1'] = 'A1'
wb.save('names.xlsx')

But this is obviously performing a 'string' comparison

No. The string will be automatically cast into a DATETIME value.

See 11.2. Type Conversion in Expression Evaluation.

When an operator is used with operands of different types, type conversion occurs to make the operands compatible. Some conversions occur implicitly. For example, MySQL automatically converts numbers to strings as necessary, and vice versa.

Like Sunil said, this is not memory address.This is just the hashcode

To get the same @ content, you can:

If hashCode is not overridden in that class:

"@" + Integer.toHexString(obj.hashCode())

If hashCode is overridden, you get the original value with:

"@" + Integer.toHexString(System.identityHashCode(obj)) 

This is often confused with memory address because if you don't override hashCode(), the memory address is used to calculate the hash.

you could also save a reference to this before you invoke the api method:

componentDidMount:function(){

    var that = this;

    VK.init(function(){
        console.info("API initialisation successful");
        VK.api('users.get',{fields: 'photo_50'},function(data){
            if(data.response){
                that.setState({ //the error happens here
                    FirstName: data.response[0].first_name
                });
                console.info(that.state.FirstName);
            }
        });
    }, function(){
        console.info("API initialisation failed");

    }, '5.34');
},

It was helpful for me: link

function hoverTouchUnstick() {
    // Check if the device supports touch events
    if('ontouchstart' in document.documentElement) {
        // Loop through each stylesheet
        for(var sheetI = document.styleSheets.length - 1; sheetI >= 0; sheetI--) {
            var sheet = document.styleSheets[sheetI];
            // Verify if cssRules exists in sheet
            if(sheet.cssRules) {
                // Loop through each rule in sheet
                for(var ruleI = sheet.cssRules.length - 1; ruleI >= 0; ruleI--) {
                    var rule = sheet.cssRules[ruleI];
                    // Verify rule has selector text
                    if(rule.selectorText) {
                        // Replace hover psuedo-class with active psuedo-class
                        rule.selectorText = rule.selectorText.replace(":hover", ":active");
                    }
                }
            }
        }
    }
}

In a Windows environment you can remove Git tracking from a project's directory by simply typing the below.

rd .git /S/Q

Try a clear: left on #inner2. Because they are both being set to float it should cause a line return.

#inner1 {_x000D_
   float:left; _x000D_
}_x000D_
_x000D_
#inner2{_x000D_
   float:left; _x000D_
   clear: left;_x000D_
}

<div id="wrapper">_x000D_
    <div id="inner1">This is inner div 1</div>_x000D_
    <div id="inner2">This is inner div 2</div>_x000D_
</div>

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

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

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

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

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

Update the pom.xml as -

<project>   
 ....
    <build>
      <resources>
        <resource>
          <directory>src/main/config</directory>
        </resource>
      </resources>
     ...
    </build>
...
</project>

This link here answers it. Reading file using relative path in python project

Basically using Path from pathlib you'll do the following in script.py

from pathlib import Path
path = Path(__file__).parent / "../data_folder/data.csv"
pd.read_csv(path)

You can use the getTime() method on a Date object to get the timestamp (in milliseconds) relative to January 1, 1970. If you convert your two dates into integer timestamps, you can then compare the difference by subtracting them. The result will be in milliseconds so you just divide by 1000 for seconds, then 60 for minutes, etc.

The constructor is called only once, so you can safely do what you want, however the disadvantage of calling methods from within the constructor, rather than directly, is that you don't get direct feedback if the method fails. This gets more difficult the more methods you call.

One solution is to provide methods that you can call to query the 'health' of the object once it's been constructed. For example the method isConfigOK() can be used to see if the config read operation was OK.

Another solution is to throw exceptions in the constructor upon failure, but it really depends on how 'fatal' these failures are.

class A
{
    Map <String,String> config = null;
    public A()
    {
        readConfig();
    }

    protected boolean readConfig()
    {
        ...
    }

    public boolean isConfigOK()
    {
        // Check config here
        return true;
    }
};

For what is worth, I got this error doing a clean install of nodejs and npm packages of my current linux-distribution I've installed meteor using

npm install metor

And got the above referenced error. After wasting some time, I found out I should have used meteor's way to update itself:

meteor update

This command output, among others, the message that meteor was severely outdated (over 2 years) and that it was going to install itself using:

curl https://install.meteor.com/ | sh

Which was probably the command I should have run in the first place.

So the solution might be to upgrade/update whatever nodejs package(js) you're using.

If you want to allow the user to browse for a file, you need to have an input type="file" The closest you could get to your requirement would be to place the input type="file" on the page and hide it. Then, trigger the click event of the input when the button is clicked:

#myFileInput {
    display:none;
}

<input type="file" id="myFileInput" />
<input type="button"
       onclick="document.getElementById('myFileInput').click()" 
       value="Select a File" />

Here's a working fiddle.

Note: I would not recommend this approach. The input type="file" is the mechanism that users are accustomed to using for uploading a file.

I found out that, on iPhone 4 with IOS 7, you CAN put a body to the SMS only if you set a phone number in the list of contact of the phone.

So the following will work If 0606060606 is part of my contacts:

<a href="sms:0606060606;body=Hello my friend">Send SMS</a>

By the way, on iOS 6 (iPhone 3GS), it's working with just a body :

<a href="sms:;body=Hello my friend">Send SMS</a>

According to Wikipedia:

Selectors are unable to ascend

CSS offers no way to select a parent or ancestor of element that satisfies certain criteria. A more advanced selector scheme (such as XPath) would enable more sophisticated stylesheets. However, the major reasons for the CSS Working Group rejecting proposals for parent selectors are related to browser performance and incremental rendering issues.

And for anyone searching SO in future, this might also be referred to as an ancestor selector.

Update:

The Selectors Level 4 Spec allows you to select which part of the select is the subject:

The subject of the selector can be explicitly identified by prepending a dollar sign ($) to one of the compound selectors in a selector. Although the element structure that the selector represents is the same with or without the dollar sign, indicating the subject in this way can change which compound selector represents the subject in that structure.

Example 1:

For example, the following selector represents a list item LI unique child of an ordered list OL:

OL > LI:only-child

However the following one represents an ordered list OL having a unique child, that child being a LI:

$OL > LI:only-child

The structures represented by these two selectors are the same, but the subjects of the selectors are not.

Although this isn't available (currently, November 2011) in any browser or as a selector in jQuery.